From e882dc9c8e10db52dd509fbd67240ce0cc09c201 Mon Sep 17 00:00:00 2001 From: Ruslan Pisarev Date: Tue, 26 Jul 2011 14:15:59 +0300 Subject: Xen: fix whitespaces,tabs coding style issue in drivers/xen/balloon.c This is a patch to the balloon.c file that fixed up whitespaces, tabs errors found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/balloon.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index f54290baa3db..61c0ee7aa7dd 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -84,8 +84,8 @@ static unsigned long frame_list[PAGE_SIZE / sizeof(unsigned long)]; #define inc_totalhigh_pages() (totalhigh_pages++) #define dec_totalhigh_pages() (totalhigh_pages--) #else -#define inc_totalhigh_pages() do {} while(0) -#define dec_totalhigh_pages() do {} while(0) +#define inc_totalhigh_pages() do {} while (0) +#define dec_totalhigh_pages() do {} while (0) #endif /* List of ballooned pages, threaded through the mem_map array. */ @@ -145,8 +145,7 @@ static struct page *balloon_retrieve(bool prefer_highmem) if (PageHighMem(page)) { balloon_stats.balloon_high--; inc_totalhigh_pages(); - } - else + } else balloon_stats.balloon_low--; totalram_pages++; @@ -299,7 +298,7 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp) (unsigned long)__va(pfn << PAGE_SHIFT), __pte_ma(0), 0); BUG_ON(ret); - } + } } @@ -376,10 +375,10 @@ EXPORT_SYMBOL_GPL(balloon_set_new_target); * @pages: pages returned * @return 0 on success, error otherwise */ -int alloc_xenballooned_pages(int nr_pages, struct page** pages) +int alloc_xenballooned_pages(int nr_pages, struct page **pages) { int pgno = 0; - struct page* page; + struct page *page; mutex_lock(&balloon_mutex); while (pgno < nr_pages) { page = balloon_retrieve(true); @@ -409,7 +408,7 @@ EXPORT_SYMBOL(alloc_xenballooned_pages); * @nr_pages: Number of pages * @pages: pages to return */ -void free_xenballooned_pages(int nr_pages, struct page** pages) +void free_xenballooned_pages(int nr_pages, struct page **pages) { int i; -- cgit v1.2.3 From 088c05a845da821fba9e5434bbcc6329368de34e Mon Sep 17 00:00:00 2001 From: Ruslan Pisarev Date: Tue, 26 Jul 2011 14:16:13 +0300 Subject: Xen: fix whitespaces,tabs coding style issue in drivers/xen/events.c This is a patch to the events.c file that fixed up whitespaces, tabs and braces errors found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/events.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/events.c b/drivers/xen/events.c index da70f5c32eb9..8876ffd08771 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -85,8 +85,7 @@ enum xen_irq_type { * IPI - IPI vector * EVTCHN - */ -struct irq_info -{ +struct irq_info { struct list_head list; enum xen_irq_type type; /* type */ unsigned irq; @@ -282,9 +281,9 @@ static inline unsigned long active_evtchns(unsigned int cpu, struct shared_info *sh, unsigned int idx) { - return (sh->evtchn_pending[idx] & + return sh->evtchn_pending[idx] & per_cpu(cpu_evtchn_mask, cpu)[idx] & - ~sh->evtchn_mask[idx]); + ~sh->evtchn_mask[idx]; } static void bind_evtchn_to_cpu(unsigned int chn, unsigned int cpu) @@ -1152,7 +1151,7 @@ static void __xen_evtchn_do_upcall(void) int cpu = get_cpu(); struct shared_info *s = HYPERVISOR_shared_info; struct vcpu_info *vcpu_info = __this_cpu_read(xen_vcpu); - unsigned count; + unsigned count; do { unsigned long pending_words; -- cgit v1.2.3 From 7b0ac956d91b91a1e05e4e0b454d65710fc73cd8 Mon Sep 17 00:00:00 2001 From: Ruslan Pisarev Date: Tue, 26 Jul 2011 14:16:26 +0300 Subject: Xen: fix braces coding style issue in gntdev.c and grant-table.c This is a patch to the gntdev.c and grant-table.c files that fixed up braces errors found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/gntdev.c | 3 +-- drivers/xen/grant-table.c | 2 +- 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index f914b26cf0c2..772a5b8bbf2e 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -188,9 +188,8 @@ static void gntdev_put_map(struct grant_map *map) atomic_sub(map->count, &pages_mapped); - if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT) { + if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT) notify_remote_via_evtchn(map->notify.event); - } if (map->pages) { if (!use_ptemod) diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index fd725cde6ad1..3a3dceb7063a 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -193,7 +193,7 @@ int gnttab_query_foreign_access(grant_ref_t ref) nflags = shared[ref].flags; - return (nflags & (GTF_reading|GTF_writing)); + return nflags & (GTF_reading|GTF_writing); } EXPORT_SYMBOL_GPL(gnttab_query_foreign_access); -- cgit v1.2.3 From 4b0109830842fa645c7f7460dc713cedfe4473f6 Mon Sep 17 00:00:00 2001 From: Ruslan Pisarev Date: Tue, 26 Jul 2011 14:16:38 +0300 Subject: Xen: fix whitespaces,tabs coding style issue in drivers/xen/pci.c This is a patch to the pci.c file that fixed up whitespaces, tabs warnings found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/pci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c index cef4bafc07dc..c4448ee5595f 100644 --- a/drivers/xen/pci.c +++ b/drivers/xen/pci.c @@ -36,7 +36,7 @@ static int xen_add_device(struct device *dev) struct physdev_manage_pci_ext manage_pci_ext = { .bus = pci_dev->bus->number, .devfn = pci_dev->devfn, - .is_virtfn = 1, + .is_virtfn = 1, .physfn.bus = pci_dev->physfn->bus->number, .physfn.devfn = pci_dev->physfn->devfn, }; @@ -56,7 +56,7 @@ static int xen_add_device(struct device *dev) &manage_pci_ext); } else { struct physdev_manage_pci manage_pci = { - .bus = pci_dev->bus->number, + .bus = pci_dev->bus->number, .devfn = pci_dev->devfn, }; -- cgit v1.2.3 From 822a259aa17e977892bf9dbb546522c477f7b7cb Mon Sep 17 00:00:00 2001 From: Ruslan Pisarev Date: Tue, 26 Jul 2011 14:17:01 +0300 Subject: Xen: fix braces coding style issue in xenbus_probe.h This is a patch to the xenbus_probe.h file that fixed up braces errors found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_probe.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h index b814935378c7..9b1de4e34c64 100644 --- a/drivers/xen/xenbus/xenbus_probe.h +++ b/drivers/xen/xenbus/xenbus_probe.h @@ -36,8 +36,7 @@ #define XEN_BUS_ID_SIZE 20 -struct xen_bus_type -{ +struct xen_bus_type { char *root; unsigned int levels; int (*get_bus_id)(char bus_id[XEN_BUS_ID_SIZE], const char *nodename); -- cgit v1.2.3 From 6913200a566b6d2866d46d7b947a2326c4e11f55 Mon Sep 17 00:00:00 2001 From: Ruslan Pisarev Date: Tue, 26 Jul 2011 14:17:23 +0300 Subject: Xen: fix braces and tabs coding style issue in xenbus_probe.c This is a patch to the xenbus_probe.c file that fixed up braces and tabs errors found by the checkpatch.pl tools. Signed-off-by: Ruslan Pisarev Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_probe.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index bd2f90c9ac8b..d4c7a9ffbcb9 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -309,8 +309,7 @@ void xenbus_unregister_driver(struct xenbus_driver *drv) } EXPORT_SYMBOL_GPL(xenbus_unregister_driver); -struct xb_find_info -{ +struct xb_find_info { struct xenbus_device *dev; const char *nodename; }; @@ -639,7 +638,7 @@ int xenbus_dev_cancel(struct device *dev) EXPORT_SYMBOL_GPL(xenbus_dev_cancel); /* A flag to determine if xenstored is 'ready' (i.e. has started) */ -int xenstored_ready = 0; +int xenstored_ready; int register_xenstore_notifier(struct notifier_block *nb) @@ -762,7 +761,7 @@ static int __init xenbus_init(void) return 0; - out_error: +out_error: if (page != 0) free_page(page); -- cgit v1.2.3 From 6b71c52e7f848e2c9f804e175215e5965ea90d32 Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Thu, 28 Jul 2011 15:23:03 +0200 Subject: xen: use static initializers in xen-balloon.c There is no need to use dynamic initializaion, it just confuses the reader. Switch to static initializers like its used in other files. Signed-off-by: Olaf Hering [v2: Rebased on v3.0] Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xen-balloon.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c index 5c9dc43c1e94..9cc2259c9992 100644 --- a/drivers/xen/xen-balloon.c +++ b/drivers/xen/xen-balloon.c @@ -50,11 +50,6 @@ static struct sys_device balloon_sysdev; static int register_balloon(struct sys_device *sysdev); -static struct xenbus_watch target_watch = -{ - .node = "memory/target" -}; - /* React to a change in the target key */ static void watch_target(struct xenbus_watch *watch, const char **vec, unsigned int len) @@ -73,6 +68,11 @@ static void watch_target(struct xenbus_watch *watch, */ balloon_set_new_target(new_target >> (PAGE_SHIFT - 10)); } +static struct xenbus_watch target_watch = { + .node = "memory/target", + .callback = watch_target, +}; + static int balloon_init_watcher(struct notifier_block *notifier, unsigned long event, @@ -87,7 +87,9 @@ static int balloon_init_watcher(struct notifier_block *notifier, return NOTIFY_DONE; } -static struct notifier_block xenstore_notifier; +static struct notifier_block xenstore_notifier = { + .notifier_call = balloon_init_watcher, +}; static int __init balloon_init(void) { @@ -100,9 +102,6 @@ static int __init balloon_init(void) register_xen_selfballooning(&balloon_sysdev); - target_watch.callback = watch_target; - xenstore_notifier.notifier_call = balloon_init_watcher; - register_xenstore_notifier(&xenstore_notifier); return 0; -- cgit v1.2.3 From 13049537007dee73a76f0a30fcbc24d02c6fa9e4 Mon Sep 17 00:00:00 2001 From: Joseph Handzik Date: Mon, 8 Aug 2011 11:40:15 +0200 Subject: cciss: Adds simple mode functionality Signed-off-by: Joseph Handzik Acked-by: Stephen M. Cameron Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 56 +++++++++++++++++++++++++++++++++++++++++---------- drivers/block/cciss.h | 1 + 2 files changed, 46 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 8f4ef656a1af..61f0b5b6a415 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -68,6 +68,10 @@ static int cciss_tape_cmds = 6; module_param(cciss_tape_cmds, int, 0644); MODULE_PARM_DESC(cciss_tape_cmds, "number of commands to allocate for tape devices (default: 6)"); +static int cciss_simple_mode; +module_param(cciss_simple_mode, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(cciss_simple_mode, + "Use 'simple mode' rather than 'performant mode'"); static DEFINE_MUTEX(cciss_mutex); static struct proc_dir_entry *proc_cciss; @@ -176,6 +180,7 @@ static void cciss_geometry_inquiry(ctlr_info_t *h, int logvol, unsigned int block_size, InquiryData_struct *inq_buff, drive_info_struct *drv); static void __devinit cciss_interrupt_mode(ctlr_info_t *); +static int __devinit cciss_enter_simple_mode(struct ctlr_info *h); static void start_io(ctlr_info_t *h); static int sendcmd_withirq(ctlr_info_t *h, __u8 cmd, void *buff, size_t size, __u8 page_code, unsigned char scsi3addr[], @@ -388,7 +393,7 @@ static void cciss_seq_show_header(struct seq_file *seq) h->product_name, (unsigned long)h->board_id, h->firm_ver[0], h->firm_ver[1], h->firm_ver[2], - h->firm_ver[3], (unsigned int)h->intr[PERF_MODE_INT], + h->firm_ver[3], (unsigned int)h->intr[h->intr_mode], h->num_luns, h->Qdepth, h->commands_outstanding, h->maxQsinceinit, h->max_outstanding, h->maxSG); @@ -3984,6 +3989,9 @@ static void __devinit cciss_put_controller_into_performant_mode(ctlr_info_t *h) { __u32 trans_support; + if (cciss_simple_mode) + return; + dev_dbg(&h->pdev->dev, "Trying to put board into Performant mode\n"); /* Attempt to put controller into performant mode if supported */ /* Does board support performant mode? */ @@ -4081,7 +4089,7 @@ static void __devinit cciss_interrupt_mode(ctlr_info_t *h) default_int_mode: #endif /* CONFIG_PCI_MSI */ /* if we get here we're going to use the default interrupt mode */ - h->intr[PERF_MODE_INT] = h->pdev->irq; + h->intr[h->intr_mode] = h->pdev->irq; return; } @@ -4341,6 +4349,9 @@ static int __devinit cciss_pci_init(ctlr_info_t *h) } cciss_enable_scsi_prefetch(h); cciss_p600_dma_prefetch_quirk(h); + err = cciss_enter_simple_mode(h); + if (err) + goto err_out_free_res; cciss_put_controller_into_performant_mode(h); return 0; @@ -4843,20 +4854,20 @@ static int cciss_request_irq(ctlr_info_t *h, irqreturn_t (*intxhandler)(int, void *)) { if (h->msix_vector || h->msi_vector) { - if (!request_irq(h->intr[PERF_MODE_INT], msixhandler, + if (!request_irq(h->intr[h->intr_mode], msixhandler, IRQF_DISABLED, h->devname, h)) return 0; dev_err(&h->pdev->dev, "Unable to get msi irq %d" - " for %s\n", h->intr[PERF_MODE_INT], + " for %s\n", h->intr[h->intr_mode], h->devname); return -1; } - if (!request_irq(h->intr[PERF_MODE_INT], intxhandler, + if (!request_irq(h->intr[h->intr_mode], intxhandler, IRQF_DISABLED, h->devname, h)) return 0; dev_err(&h->pdev->dev, "Unable to get irq %d for %s\n", - h->intr[PERF_MODE_INT], h->devname); + h->intr[h->intr_mode], h->devname); return -1; } @@ -4887,7 +4898,7 @@ static void cciss_undo_allocations_after_kdump_soft_reset(ctlr_info_t *h) { int ctlr = h->ctlr; - free_irq(h->intr[PERF_MODE_INT], h); + free_irq(h->intr[h->intr_mode], h); #ifdef CONFIG_PCI_MSI if (h->msix_vector) pci_disable_msix(h->pdev); @@ -4953,6 +4964,7 @@ reinit_after_soft_reset: h = hba[i]; h->pdev = pdev; h->busy_initializing = 1; + h->intr_mode = cciss_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT; INIT_LIST_HEAD(&h->cmpQ); INIT_LIST_HEAD(&h->reqQ); mutex_init(&h->busy_shutting_down); @@ -5009,7 +5021,7 @@ reinit_after_soft_reset: dev_info(&h->pdev->dev, "%s: <0x%x> at PCI %s IRQ %d%s using DAC\n", h->devname, pdev->device, pci_name(pdev), - h->intr[PERF_MODE_INT], dac ? "" : " not"); + h->intr[h->intr_mode], dac ? "" : " not"); if (cciss_allocate_cmd_pool(h)) goto clean4; @@ -5056,7 +5068,7 @@ reinit_after_soft_reset: spin_lock_irqsave(&h->lock, flags); h->access.set_intr_mask(h, CCISS_INTR_OFF); spin_unlock_irqrestore(&h->lock, flags); - free_irq(h->intr[PERF_MODE_INT], h); + free_irq(h->intr[h->intr_mode], h); rc = cciss_request_irq(h, cciss_msix_discard_completions, cciss_intx_discard_completions); if (rc) { @@ -5133,7 +5145,7 @@ clean4: cciss_free_cmd_pool(h); cciss_free_scatterlists(h); cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds); - free_irq(h->intr[PERF_MODE_INT], h); + free_irq(h->intr[h->intr_mode], h); clean2: unregister_blkdev(h->major, h->devname); clean1: @@ -5172,9 +5184,31 @@ static void cciss_shutdown(struct pci_dev *pdev) if (return_code != IO_OK) dev_warn(&h->pdev->dev, "Error flushing cache\n"); h->access.set_intr_mask(h, CCISS_INTR_OFF); - free_irq(h->intr[PERF_MODE_INT], h); + free_irq(h->intr[h->intr_mode], h); } +static int __devinit cciss_enter_simple_mode(struct ctlr_info *h) +{ + u32 trans_support; + + trans_support = readl(&(h->cfgtable->TransportSupport)); + if (!(trans_support & SIMPLE_MODE)) + return -ENOTSUPP; + + h->max_commands = readl(&(h->cfgtable->CmdsOutMax)); + writel(CFGTBL_Trans_Simple, &(h->cfgtable->HostWrite.TransportRequest)); + writel(CFGTBL_ChangeReq, h->vaddr + SA5_DOORBELL); + cciss_wait_for_mode_change_ack(h); + print_cfg_table(h); + if (!(readl(&(h->cfgtable->TransportActive)) & CFGTBL_Trans_Simple)) { + dev_warn(&h->pdev->dev, "unable to get board into simple mode\n"); + return -ENODEV; + } + h->transMethod = CFGTBL_Trans_Simple; + return 0; +} + + static void __devexit cciss_remove_one(struct pci_dev *pdev) { ctlr_info_t *h; diff --git a/drivers/block/cciss.h b/drivers/block/cciss.h index c049548e68b7..7fda30e4a241 100644 --- a/drivers/block/cciss.h +++ b/drivers/block/cciss.h @@ -92,6 +92,7 @@ struct ctlr_info unsigned int intr[4]; unsigned int msix_vector; unsigned int msi_vector; + int intr_mode; int cciss_max_sectors; BYTE cciss_read; BYTE cciss_write; -- cgit v1.2.3 From f963d270cb7bbb8eeb57901d02b22a493e664fd2 Mon Sep 17 00:00:00 2001 From: Joe Handzik Date: Mon, 8 Aug 2011 11:40:17 +0200 Subject: cciss: add transport mode attribute to sys Signed-off-by: Joseph Handzik Acked-by: Stephen M. Cameron Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers') diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 61f0b5b6a415..6da7edea700a 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -641,6 +641,18 @@ static ssize_t host_store_rescan(struct device *dev, } static DEVICE_ATTR(rescan, S_IWUSR, NULL, host_store_rescan); +static ssize_t host_show_transport_mode(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct ctlr_info *h = to_hba(dev); + + return snprintf(buf, 20, "%s\n", + h->transMethod & CFGTBL_Trans_Performant ? + "performant" : "simple"); +} +static DEVICE_ATTR(transport_mode, S_IRUGO, host_show_transport_mode, NULL); + static ssize_t dev_show_unique_id(struct device *dev, struct device_attribute *attr, char *buf) @@ -813,6 +825,7 @@ static DEVICE_ATTR(usage_count, S_IRUGO, cciss_show_usage_count, NULL); static struct attribute *cciss_host_attrs[] = { &dev_attr_rescan.attr, &dev_attr_resettable.attr, + &dev_attr_transport_mode.attr, NULL }; -- cgit v1.2.3 From 9704efaa52ab18eb3504c4e0bc421c1d01b7981a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 29 Jul 2011 16:21:57 +0530 Subject: dmaengine/dmatest: Terminate transfers on all channels in case of error or exit In case, some error occurs while doing memcpy transfers, we must terminate all transfers physically too. This is achieved by calling device_control() routine with TERMINATE_ALL as parameter. This is also required to be done in case module is removed while we are in middle of some transfers. Signed-off-by: Viresh Kumar Signed-off-by: Vinod Koul --- drivers/dma/dmatest.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index 765f5ff22304..accc18441b16 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -477,6 +477,8 @@ err_srcs: pr_notice("%s: terminating after %u tests, %u failures (status %d)\n", thread_name, total_tests, failed_tests, ret); + /* terminate all transfers on specified channels */ + chan->device->device_control(chan, DMA_TERMINATE_ALL, 0); if (iterations > 0) while (!kthread_should_stop()) { DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wait_dmatest_exit); @@ -499,6 +501,10 @@ static void dmatest_cleanup_channel(struct dmatest_chan *dtc) list_del(&thread->node); kfree(thread); } + + /* terminate all transfers on specified channels */ + dtc->chan->device->device_control(dtc->chan, DMA_TERMINATE_ALL, 0); + kfree(dtc); } -- cgit v1.2.3 From e57b708beaf1bc14031cb9749b574c9aa1f6188f Mon Sep 17 00:00:00 2001 From: Mike Williams Date: Thu, 7 Jul 2011 06:09:58 +0000 Subject: powerpc/4xx: edac: Add comma to fix build error Commit 4018294b53d1dae026880e45f174c1cc63b5d435 broke the ppc4xx_edac driver at line 210 where the struct member is missing a comma. Signed-off-by: Mike Williams Signed-off-by: Josh Boyer --- drivers/edac/ppc4xx_edac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/edac/ppc4xx_edac.c b/drivers/edac/ppc4xx_edac.c index 0de7d8770891..38400963e245 100644 --- a/drivers/edac/ppc4xx_edac.c +++ b/drivers/edac/ppc4xx_edac.c @@ -205,7 +205,7 @@ static struct platform_driver ppc4xx_edac_driver = { .remove = ppc4xx_edac_remove, .driver = { .owner = THIS_MODULE, - .name = PPC4XX_EDAC_MODULE_NAME + .name = PPC4XX_EDAC_MODULE_NAME, .of_match_table = ppc4xx_edac_match, }, }; -- cgit v1.2.3 From 1712cde28532d9b0c98142e08a131b344d3200bd Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sat, 28 May 2011 10:36:29 -0700 Subject: mtd: convert vmalloc/memset to vzalloc Signed-off-by: Joe Perches Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdswap.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index fd7885327611..5e5423b2aed2 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -1374,11 +1374,10 @@ static int mtdswap_init(struct mtdswap_dev *d, unsigned int eblocks, goto revmap_fail; eblk_bytes = sizeof(struct swap_eb)*d->eblks; - d->eb_data = vmalloc(eblk_bytes); + d->eb_data = vzalloc(eblk_bytes); if (!d->eb_data) goto eb_data_fail; - memset(d->eb_data, 0, eblk_bytes); for (i = 0; i < pages; i++) d->page_data[i] = BLOCK_UNDEF; -- cgit v1.2.3 From 1c3bd14bb0e10ce69761662d575d454f12070838 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 31 May 2011 21:20:53 +0800 Subject: mtd: onenand: return proper error if regulator_get fails Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/omap2.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index a916dec29215..0d9073d4e417 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -741,6 +741,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) c->regulator = regulator_get(&pdev->dev, "vonenand"); if (IS_ERR(c->regulator)) { dev_err(&pdev->dev, "Failed to get regulator\n"); + r = PTR_ERR(c->regulator); goto err_release_dma; } c->onenand.enable = omap2_onenand_enable; -- cgit v1.2.3 From ef298c21c0d9c06ed89ea2fa724c3a018acfff39 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lothar=20Wa=C3=9Fmann?= Date: Mon, 8 Aug 2011 14:47:47 +0200 Subject: mxs-dma: enable CLKGATE before accessing registers MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After calling mxs_dma_disable_chan() for a channel, that channel becomes unusable because some controller registers can only be written when the clock is enabled via CLKGATE. Signed-off-by: Lothar Waßmann Signed-off-by: Vinod Koul --- drivers/dma/mxs-dma.c | 45 ++++++++++++++++++++++++--------------------- 1 file changed, 24 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c index be641cbd36fc..b4588bdd98bb 100644 --- a/drivers/dma/mxs-dma.c +++ b/drivers/dma/mxs-dma.c @@ -130,6 +130,23 @@ struct mxs_dma_engine { struct mxs_dma_chan mxs_chans[MXS_DMA_CHANNELS]; }; +static inline void mxs_dma_clkgate(struct mxs_dma_chan *mxs_chan, int enable) +{ + struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; + int chan_id = mxs_chan->chan.chan_id; + int set_clr = enable ? MXS_CLR_ADDR : MXS_SET_ADDR; + + /* enable apbh channel clock */ + if (dma_is_apbh()) { + if (apbh_is_old()) + writel(1 << (chan_id + BP_APBH_CTRL0_CLKGATE_CHANNEL), + mxs_dma->base + HW_APBHX_CTRL0 + set_clr); + else + writel(1 << chan_id, + mxs_dma->base + HW_APBHX_CTRL0 + set_clr); + } +} + static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan) { struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; @@ -148,38 +165,21 @@ static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan) struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; int chan_id = mxs_chan->chan.chan_id; + /* clkgate needs to be enabled before writing other registers */ + mxs_dma_clkgate(mxs_chan, 1); + /* set cmd_addr up */ writel(mxs_chan->ccw_phys, mxs_dma->base + HW_APBHX_CHn_NXTCMDAR(chan_id)); - /* enable apbh channel clock */ - if (dma_is_apbh()) { - if (apbh_is_old()) - writel(1 << (chan_id + BP_APBH_CTRL0_CLKGATE_CHANNEL), - mxs_dma->base + HW_APBHX_CTRL0 + MXS_CLR_ADDR); - else - writel(1 << chan_id, - mxs_dma->base + HW_APBHX_CTRL0 + MXS_CLR_ADDR); - } - /* write 1 to SEMA to kick off the channel */ writel(1, mxs_dma->base + HW_APBHX_CHn_SEMA(chan_id)); } static void mxs_dma_disable_chan(struct mxs_dma_chan *mxs_chan) { - struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma; - int chan_id = mxs_chan->chan.chan_id; - /* disable apbh channel clock */ - if (dma_is_apbh()) { - if (apbh_is_old()) - writel(1 << (chan_id + BP_APBH_CTRL0_CLKGATE_CHANNEL), - mxs_dma->base + HW_APBHX_CTRL0 + MXS_SET_ADDR); - else - writel(1 << chan_id, - mxs_dma->base + HW_APBHX_CTRL0 + MXS_SET_ADDR); - } + mxs_dma_clkgate(mxs_chan, 0); mxs_chan->status = DMA_SUCCESS; } @@ -338,7 +338,10 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan) if (ret) goto err_clk; + /* clkgate needs to be enabled for reset to finish */ + mxs_dma_clkgate(mxs_chan, 1); mxs_dma_reset_chan(mxs_chan); + mxs_dma_clkgate(mxs_chan, 0); dma_async_tx_descriptor_init(&mxs_chan->desc, chan); mxs_chan->desc.tx_submit = mxs_dma_tx_submit; -- cgit v1.2.3 From 25ac0c2b971235d3e8c7af0b6889a1eb6988b559 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Fri, 19 Aug 2011 14:48:17 +0200 Subject: nbd: use task_pid_nr() to get current pid Signed-off-by: WANG Cong Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index f533f3375e24..a928287177fd 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -405,7 +405,7 @@ static int nbd_do_it(struct nbd_device *lo) BUG_ON(lo->magic != LO_MAGIC); - lo->pid = current->pid; + lo->pid = task_pid_nr(current); ret = sysfs_create_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr); if (ret) { printk(KERN_ERR "nbd: sysfs_create_file failed!"); -- cgit v1.2.3 From 1695b87f7dd152b866f0dd867c8e599025fc4965 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Fri, 19 Aug 2011 14:48:21 +0200 Subject: nbd: replace sysfs_create_file() with device_create_file() Signed-off-by: WANG Cong Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index a928287177fd..da98360b6463 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -406,9 +406,9 @@ static int nbd_do_it(struct nbd_device *lo) BUG_ON(lo->magic != LO_MAGIC); lo->pid = task_pid_nr(current); - ret = sysfs_create_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr); + ret = device_create_file(disk_to_dev(lo->disk), &pid_attr); if (ret) { - printk(KERN_ERR "nbd: sysfs_create_file failed!"); + printk(KERN_ERR "nbd: device_create_file failed!"); lo->pid = 0; return ret; } @@ -416,7 +416,7 @@ static int nbd_do_it(struct nbd_device *lo) while ((req = nbd_read_stat(lo)) != NULL) nbd_end_request(req); - sysfs_remove_file(&disk_to_dev(lo->disk)->kobj, &pid_attr.attr); + device_remove_file(disk_to_dev(lo->disk), &pid_attr); lo->pid = 0; return 0; } -- cgit v1.2.3 From 7f1b90f99a2d4253f8eb1221d39da072178adbc5 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Fri, 19 Aug 2011 14:48:22 +0200 Subject: nbd: replace printk KERN_ERR with dev_err() Signed-off-by: WANG Cong Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 50 +++++++++++++++++++++++++------------------------- 1 file changed, 25 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index da98360b6463..1b8e09fffd5a 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -158,8 +158,9 @@ static int sock_xmit(struct nbd_device *lo, int send, void *buf, int size, sigset_t blocked, oldset; if (unlikely(!sock)) { - printk(KERN_ERR "%s: Attempted %s on closed socket in sock_xmit\n", - lo->disk->disk_name, (send ? "send" : "recv")); + dev_err(disk_to_dev(lo->disk), + "Attempted %s on closed socket in sock_xmit\n", + (send ? "send" : "recv")); return -EINVAL; } @@ -250,8 +251,8 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req) result = sock_xmit(lo, 1, &request, sizeof(request), (nbd_cmd(req) == NBD_CMD_WRITE) ? MSG_MORE : 0); if (result <= 0) { - printk(KERN_ERR "%s: Send control failed (result %d)\n", - lo->disk->disk_name, result); + dev_err(disk_to_dev(lo->disk), + "Send control failed (result %d)\n", result); goto error_out; } @@ -270,8 +271,9 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req) lo->disk->disk_name, req, bvec->bv_len); result = sock_send_bvec(lo, bvec, flags); if (result <= 0) { - printk(KERN_ERR "%s: Send data failed (result %d)\n", - lo->disk->disk_name, result); + dev_err(disk_to_dev(lo->disk), + "Send data failed (result %d)\n", + result); goto error_out; } } @@ -328,14 +330,13 @@ static struct request *nbd_read_stat(struct nbd_device *lo) reply.magic = 0; result = sock_xmit(lo, 0, &reply, sizeof(reply), MSG_WAITALL); if (result <= 0) { - printk(KERN_ERR "%s: Receive control failed (result %d)\n", - lo->disk->disk_name, result); + dev_err(disk_to_dev(lo->disk), + "Receive control failed (result %d)\n", result); goto harderror; } if (ntohl(reply.magic) != NBD_REPLY_MAGIC) { - printk(KERN_ERR "%s: Wrong magic (0x%lx)\n", - lo->disk->disk_name, + dev_err(disk_to_dev(lo->disk), "Wrong magic (0x%lx)\n", (unsigned long)ntohl(reply.magic)); result = -EPROTO; goto harderror; @@ -347,15 +348,15 @@ static struct request *nbd_read_stat(struct nbd_device *lo) if (result != -ENOENT) goto harderror; - printk(KERN_ERR "%s: Unexpected reply (%p)\n", - lo->disk->disk_name, reply.handle); + dev_err(disk_to_dev(lo->disk), "Unexpected reply (%p)\n", + reply.handle); result = -EBADR; goto harderror; } if (ntohl(reply.error)) { - printk(KERN_ERR "%s: Other side returned error (%d)\n", - lo->disk->disk_name, ntohl(reply.error)); + dev_err(disk_to_dev(lo->disk), "Other side returned error (%d)\n", + ntohl(reply.error)); req->errors++; return req; } @@ -369,8 +370,8 @@ static struct request *nbd_read_stat(struct nbd_device *lo) rq_for_each_segment(bvec, req, iter) { result = sock_recv_bvec(lo, bvec); if (result <= 0) { - printk(KERN_ERR "%s: Receive data failed (result %d)\n", - lo->disk->disk_name, result); + dev_err(disk_to_dev(lo->disk), "Receive data failed (result %d)\n", + result); req->errors++; return req; } @@ -408,7 +409,7 @@ static int nbd_do_it(struct nbd_device *lo) lo->pid = task_pid_nr(current); ret = device_create_file(disk_to_dev(lo->disk), &pid_attr); if (ret) { - printk(KERN_ERR "nbd: device_create_file failed!"); + dev_err(disk_to_dev(lo->disk), "device_create_file failed!\n"); lo->pid = 0; return ret; } @@ -457,8 +458,8 @@ static void nbd_handle_req(struct nbd_device *lo, struct request *req) if (rq_data_dir(req) == WRITE) { nbd_cmd(req) = NBD_CMD_WRITE; if (lo->flags & NBD_READ_ONLY) { - printk(KERN_ERR "%s: Write on read-only\n", - lo->disk->disk_name); + dev_err(disk_to_dev(lo->disk), + "Write on read-only\n"); goto error_out; } } @@ -468,16 +469,15 @@ static void nbd_handle_req(struct nbd_device *lo, struct request *req) mutex_lock(&lo->tx_lock); if (unlikely(!lo->sock)) { mutex_unlock(&lo->tx_lock); - printk(KERN_ERR "%s: Attempted send on closed socket\n", - lo->disk->disk_name); + dev_err(disk_to_dev(lo->disk), + "Attempted send on closed socket\n"); goto error_out; } lo->active_req = req; if (nbd_send_req(lo, req) != 0) { - printk(KERN_ERR "%s: Request send failed\n", - lo->disk->disk_name); + dev_err(disk_to_dev(lo->disk), "Request send failed\n"); req->errors++; nbd_end_request(req); } else { @@ -549,8 +549,8 @@ static void do_nbd_request(struct request_queue *q) BUG_ON(lo->magic != LO_MAGIC); if (unlikely(!lo->sock)) { - printk(KERN_ERR "%s: Attempted send on closed socket\n", - lo->disk->disk_name); + dev_err(disk_to_dev(lo->disk), + "Attempted send on closed socket\n"); req->errors++; nbd_end_request(req); spin_lock_irq(q->queue_lock); -- cgit v1.2.3 From 7742ce4ab49976851ce7f0185dcbe491935371a2 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Fri, 19 Aug 2011 14:48:28 +0200 Subject: nbd: lower the loglevel of an error message This is only an error, no need to use KERN_CRIT log level. Signed-off-by: WANG Cong Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 1b8e09fffd5a..2b5fc11be377 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -745,7 +745,7 @@ static int __init nbd_init(void) BUILD_BUG_ON(sizeof(struct nbd_request) != 28); if (max_part < 0) { - printk(KERN_CRIT "nbd: max_part must be >= 0\n"); + printk(KERN_ERR "nbd: max_part must be >= 0\n"); return -EINVAL; } -- cgit v1.2.3 From 5eedf5415cd57f8db8642a5db4cf8e5507390030 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Fri, 19 Aug 2011 14:48:28 +0200 Subject: nbd: replace some printk with dev_warn() and dev_info() Signed-off-by: WANG Cong Cc: Paul Clements Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 2b5fc11be377..3353d98f81d6 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -127,8 +127,7 @@ static void sock_shutdown(struct nbd_device *lo, int lock) if (lock) mutex_lock(&lo->tx_lock); if (lo->sock) { - printk(KERN_WARNING "%s: shutting down socket\n", - lo->disk->disk_name); + dev_warn(disk_to_dev(lo->disk), "shutting down socket\n"); kernel_sock_shutdown(lo->sock, SHUT_RDWR); lo->sock = NULL; } @@ -576,7 +575,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, case NBD_DISCONNECT: { struct request sreq; - printk(KERN_INFO "%s: NBD_DISCONNECT\n", lo->disk->disk_name); + dev_info(disk_to_dev(lo->disk), "NBD_DISCONNECT\n"); blk_rq_init(NULL, &sreq); sreq.cmd_type = REQ_TYPE_SPECIAL; @@ -674,7 +673,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, file = lo->file; lo->file = NULL; nbd_clear_que(lo); - printk(KERN_WARNING "%s: queue cleared\n", lo->disk->disk_name); + dev_warn(disk_to_dev(lo->disk), "queue cleared\n"); if (file) fput(file); lo->bytesize = 0; @@ -694,8 +693,8 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, return 0; case NBD_PRINT_DEBUG: - printk(KERN_INFO "%s: next = %p, prev = %p, head = %p\n", - bdev->bd_disk->disk_name, + dev_info(disk_to_dev(lo->disk), + "next = %p, prev = %p, head = %p\n", lo->queue_head.next, lo->queue_head.prev, &lo->queue_head); return 0; -- cgit v1.2.3 From 548ef6cc26ca1c81f19855d57d3fb0f9a7ce3385 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Fri, 19 Aug 2011 14:48:28 +0200 Subject: nbd-replace-some-printk-with-dev_warn-and-dev_info-checkpatch-fixes ERROR: code indent should use tabs where possible #30: FILE: drivers/block/nbd.c:578: +^I dev_info(disk_to_dev(lo->disk), "NBD_DISCONNECT\n");$ total: 1 errors, 0 warnings, 35 lines checked NOTE: whitespace errors detected, you may wish to use scripts/cleanpatch or scripts/cleanfile ./patches/nbd-replace-some-printk-with-dev_warn-and-dev_info.patch has style problems, please review. If any of these errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Paul Clements Cc: WANG Cong Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/nbd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 3353d98f81d6..c3f0ee16594d 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -575,7 +575,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, case NBD_DISCONNECT: { struct request sreq; - dev_info(disk_to_dev(lo->disk), "NBD_DISCONNECT\n"); + dev_info(disk_to_dev(lo->disk), "NBD_DISCONNECT\n"); blk_rq_init(NULL, &sreq); sreq.cmd_type = REQ_TYPE_SPECIAL; -- cgit v1.2.3 From dfaa2ef68e80c378e610e3c8c536f1c239e8d3ef Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Fri, 19 Aug 2011 14:50:46 +0200 Subject: loop: add discard support for loop devices This commit adds discard support for loop devices. Discard is usually supported by SSD and thinly provisioned devices as a method for reclaiming unused space. This is no different than trying to reclaim back space which is not used by the file system on the image, but it still occupies space on the host file system. We can do the reclamation on file system which does support hole punching. So when discard request gets to the loop driver we can translate that to punch a hole to the underlying file, hence reclaim the free space. This is very useful for trimming down the size of the image to only what is really used by the file system on that image. Fstrim may be used for that purpose. It has been tested on ext4, xfs and btrfs with the image file systems ext4, ext3, xfs and btrfs. ext4, or ext6 image on ext4 file system has some problems but it seems that ext4 punch hole implementation is somewhat flawed and it is unrelated to this commit. Also this is a very good method of validating file systems punch hole implementation. Note that when encryption is used, discard support is disabled, because using it might leak some information useful for possible attacker. Signed-off-by: Lukas Czerner Reviewed-by: Jeff Moyer Signed-off-by: Jens Axboe --- drivers/block/loop.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'drivers') diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 76c8da78212b..936cac3c3126 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -75,6 +75,7 @@ #include #include #include +#include #include @@ -484,6 +485,29 @@ static int do_bio_filebacked(struct loop_device *lo, struct bio *bio) } } + /* + * We use punch hole to reclaim the free space used by the + * image a.k.a. discard. However we do support discard if + * encryption is enabled, because it may give an attacker + * useful information. + */ + if (bio->bi_rw & REQ_DISCARD) { + struct file *file = lo->lo_backing_file; + int mode = FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE; + + if ((!file->f_op->fallocate) || + lo->lo_encrypt_key_size) { + ret = -EOPNOTSUPP; + goto out; + } + ret = file->f_op->fallocate(file, mode, pos, + bio->bi_size); + if (unlikely(ret && ret != -EINVAL && + ret != -EOPNOTSUPP)) + ret = -EIO; + goto out; + } + ret = lo_send(lo, bio, pos); if ((bio->bi_rw & REQ_FUA) && !ret) { @@ -814,6 +838,35 @@ static void loop_sysfs_exit(struct loop_device *lo) &loop_attribute_group); } +static void loop_config_discard(struct loop_device *lo) +{ + struct file *file = lo->lo_backing_file; + struct inode *inode = file->f_mapping->host; + struct request_queue *q = lo->lo_queue; + + /* + * We use punch hole to reclaim the free space used by the + * image a.k.a. discard. However we do support discard if + * encryption is enabled, because it may give an attacker + * useful information. + */ + if ((!file->f_op->fallocate) || + lo->lo_encrypt_key_size) { + q->limits.discard_granularity = 0; + q->limits.discard_alignment = 0; + q->limits.max_discard_sectors = 0; + q->limits.discard_zeroes_data = 0; + queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, q); + return; + } + + q->limits.discard_granularity = inode->i_sb->s_blocksize; + q->limits.discard_alignment = inode->i_sb->s_blocksize; + q->limits.max_discard_sectors = UINT_MAX >> 9; + q->limits.discard_zeroes_data = 1; + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); +} + static int loop_set_fd(struct loop_device *lo, fmode_t mode, struct block_device *bdev, unsigned int arg) { @@ -1090,6 +1143,7 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info) if (figure_loop_size(lo)) return -EFBIG; } + loop_config_discard(lo); memcpy(lo->lo_file_name, info->lo_file_name, LO_NAME_SIZE); memcpy(lo->lo_crypt_name, info->lo_crypt_name, LO_NAME_SIZE); -- cgit v1.2.3 From d8cb04b070c2a55f7201714d231cff4f8f9fbd16 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 27 Jul 2011 12:21:28 +0000 Subject: dmaengine: at_hdmac: replace spin_lock* with irqsave variants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit dmaengine routines can be called from interrupt context and with interrupts disabled. Whereas spin_unlock_bh can't be called from such contexts. So this patch converts all spin_lock* routines to irqsave variants. Also, spin_lock() used in tasklet is converted to irqsave variants, as tasklet can be interrupted, and dma requests from such interruptions may also call spin_lock. Idea from dw_dmac patch by Viresh Kumar. Signed-off-by: Nicolas Ferre Signed-off-by: Uwe Kleine-König Signed-off-by: Vinod Koul --- drivers/dma/at_hdmac.c | 52 +++++++++++++++++++++++++++++--------------------- 1 file changed, 30 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 6a483eac7b3f..fd87b9690e1b 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -107,10 +107,11 @@ static struct at_desc *atc_desc_get(struct at_dma_chan *atchan) { struct at_desc *desc, *_desc; struct at_desc *ret = NULL; + unsigned long flags; unsigned int i = 0; LIST_HEAD(tmp_list); - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); list_for_each_entry_safe(desc, _desc, &atchan->free_list, desc_node) { i++; if (async_tx_test_ack(&desc->txd)) { @@ -121,7 +122,7 @@ static struct at_desc *atc_desc_get(struct at_dma_chan *atchan) dev_dbg(chan2dev(&atchan->chan_common), "desc %p not ACKed\n", desc); } - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); dev_vdbg(chan2dev(&atchan->chan_common), "scanned %u descriptors on freelist\n", i); @@ -129,9 +130,9 @@ static struct at_desc *atc_desc_get(struct at_dma_chan *atchan) if (!ret) { ret = atc_alloc_descriptor(&atchan->chan_common, GFP_ATOMIC); if (ret) { - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); atchan->descs_allocated++; - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } else { dev_err(chan2dev(&atchan->chan_common), "not enough descriptors available\n"); @@ -150,8 +151,9 @@ static void atc_desc_put(struct at_dma_chan *atchan, struct at_desc *desc) { if (desc) { struct at_desc *child; + unsigned long flags; - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); list_for_each_entry(child, &desc->tx_list, desc_node) dev_vdbg(chan2dev(&atchan->chan_common), "moving child desc %p to freelist\n", @@ -160,7 +162,7 @@ static void atc_desc_put(struct at_dma_chan *atchan, struct at_desc *desc) dev_vdbg(chan2dev(&atchan->chan_common), "moving desc %p to freelist\n", desc); list_add(&desc->desc_node, &atchan->free_list); - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } } @@ -471,8 +473,9 @@ static void atc_handle_cyclic(struct at_dma_chan *atchan) static void atc_tasklet(unsigned long data) { struct at_dma_chan *atchan = (struct at_dma_chan *)data; + unsigned long flags; - spin_lock(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); if (test_and_clear_bit(ATC_IS_ERROR, &atchan->status)) atc_handle_error(atchan); else if (test_bit(ATC_IS_CYCLIC, &atchan->status)) @@ -480,7 +483,7 @@ static void atc_tasklet(unsigned long data) else atc_advance_work(atchan); - spin_unlock(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } static irqreturn_t at_dma_interrupt(int irq, void *dev_id) @@ -539,8 +542,9 @@ static dma_cookie_t atc_tx_submit(struct dma_async_tx_descriptor *tx) struct at_desc *desc = txd_to_at_desc(tx); struct at_dma_chan *atchan = to_at_dma_chan(tx->chan); dma_cookie_t cookie; + unsigned long flags; - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); cookie = atc_assign_cookie(atchan, desc); if (list_empty(&atchan->active_list)) { @@ -554,7 +558,7 @@ static dma_cookie_t atc_tx_submit(struct dma_async_tx_descriptor *tx) list_add_tail(&desc->desc_node, &atchan->queue); } - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); return cookie; } @@ -927,28 +931,29 @@ static int atc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, struct at_dma_chan *atchan = to_at_dma_chan(chan); struct at_dma *atdma = to_at_dma(chan->device); int chan_id = atchan->chan_common.chan_id; + unsigned long flags; LIST_HEAD(list); dev_vdbg(chan2dev(chan), "atc_control (%d)\n", cmd); if (cmd == DMA_PAUSE) { - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); dma_writel(atdma, CHER, AT_DMA_SUSP(chan_id)); set_bit(ATC_IS_PAUSED, &atchan->status); - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } else if (cmd == DMA_RESUME) { if (!test_bit(ATC_IS_PAUSED, &atchan->status)) return 0; - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); dma_writel(atdma, CHDR, AT_DMA_RES(chan_id)); clear_bit(ATC_IS_PAUSED, &atchan->status); - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } else if (cmd == DMA_TERMINATE_ALL) { struct at_desc *desc, *_desc; /* @@ -957,7 +962,7 @@ static int atc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, * channel. We still have to poll the channel enable bit due * to AHB/HSB limitations. */ - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); /* disabling channel: must also remove suspend state */ dma_writel(atdma, CHDR, AT_DMA_RES(chan_id) | atchan->mask); @@ -978,7 +983,7 @@ static int atc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, /* if channel dedicated to cyclic operations, free it */ clear_bit(ATC_IS_CYCLIC, &atchan->status); - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } else { return -ENXIO; } @@ -1004,9 +1009,10 @@ atc_tx_status(struct dma_chan *chan, struct at_dma_chan *atchan = to_at_dma_chan(chan); dma_cookie_t last_used; dma_cookie_t last_complete; + unsigned long flags; enum dma_status ret; - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); last_complete = atchan->completed_cookie; last_used = chan->cookie; @@ -1021,7 +1027,7 @@ atc_tx_status(struct dma_chan *chan, ret = dma_async_is_complete(cookie, last_complete, last_used); } - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); if (ret != DMA_SUCCESS) dma_set_tx_state(txstate, last_complete, last_used, @@ -1046,6 +1052,7 @@ atc_tx_status(struct dma_chan *chan, static void atc_issue_pending(struct dma_chan *chan) { struct at_dma_chan *atchan = to_at_dma_chan(chan); + unsigned long flags; dev_vdbg(chan2dev(chan), "issue_pending\n"); @@ -1053,11 +1060,11 @@ static void atc_issue_pending(struct dma_chan *chan) if (test_bit(ATC_IS_CYCLIC, &atchan->status)) return; - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); if (!atc_chan_is_enabled(atchan)) { atc_advance_work(atchan); } - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); } /** @@ -1073,6 +1080,7 @@ static int atc_alloc_chan_resources(struct dma_chan *chan) struct at_dma *atdma = to_at_dma(chan->device); struct at_desc *desc; struct at_dma_slave *atslave; + unsigned long flags; int i; u32 cfg; LIST_HEAD(tmp_list); @@ -1116,11 +1124,11 @@ static int atc_alloc_chan_resources(struct dma_chan *chan) list_add_tail(&desc->desc_node, &tmp_list); } - spin_lock_bh(&atchan->lock); + spin_lock_irqsave(&atchan->lock, flags); atchan->descs_allocated = i; list_splice(&tmp_list, &atchan->free_list); atchan->completed_cookie = chan->cookie = 1; - spin_unlock_bh(&atchan->lock); + spin_unlock_irqrestore(&atchan->lock, flags); /* channel parameters */ channel_writel(atchan, CFG, cfg); -- cgit v1.2.3 From c0ba5947370a0900b1823922fc4faf41515bc901 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 27 Jul 2011 12:21:29 +0000 Subject: dmaengine: at_hdmac: improve power management routines MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Save/restore dma controller state across a suspend-resume sequence. The prepare() function will wait for the non-cyclic channels to become idle. It also deals with cyclic operations with the start at next period while resuming. Signed-off-by: Nicolas Ferre Signed-off-by: Uwe Kleine-König Signed-off-by: Vinod Koul --- drivers/dma/at_hdmac.c | 88 ++++++++++++++++++++++++++++++++++++++++++++- drivers/dma/at_hdmac_regs.h | 7 ++++ 2 files changed, 94 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index fd87b9690e1b..0ead008e3bdf 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -1385,27 +1385,113 @@ static void at_dma_shutdown(struct platform_device *pdev) clk_disable(atdma->clk); } +static int at_dma_prepare(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct at_dma *atdma = platform_get_drvdata(pdev); + struct dma_chan *chan, *_chan; + + list_for_each_entry_safe(chan, _chan, &atdma->dma_common.channels, + device_node) { + struct at_dma_chan *atchan = to_at_dma_chan(chan); + /* wait for transaction completion (except in cyclic case) */ + if (atc_chan_is_enabled(atchan) && + !test_bit(ATC_IS_CYCLIC, &atchan->status)) + return -EAGAIN; + } + return 0; +} + +static void atc_suspend_cyclic(struct at_dma_chan *atchan) +{ + struct dma_chan *chan = &atchan->chan_common; + + /* Channel should be paused by user + * do it anyway even if it is not done already */ + if (!test_bit(ATC_IS_PAUSED, &atchan->status)) { + dev_warn(chan2dev(chan), + "cyclic channel not paused, should be done by channel user\n"); + atc_control(chan, DMA_PAUSE, 0); + } + + /* now preserve additional data for cyclic operations */ + /* next descriptor address in the cyclic list */ + atchan->save_dscr = channel_readl(atchan, DSCR); + + vdbg_dump_regs(atchan); +} + static int at_dma_suspend_noirq(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct at_dma *atdma = platform_get_drvdata(pdev); + struct dma_chan *chan, *_chan; - at_dma_off(platform_get_drvdata(pdev)); + /* preserve data */ + list_for_each_entry_safe(chan, _chan, &atdma->dma_common.channels, + device_node) { + struct at_dma_chan *atchan = to_at_dma_chan(chan); + + if (test_bit(ATC_IS_CYCLIC, &atchan->status)) + atc_suspend_cyclic(atchan); + atchan->save_cfg = channel_readl(atchan, CFG); + } + atdma->save_imr = dma_readl(atdma, EBCIMR); + + /* disable DMA controller */ + at_dma_off(atdma); clk_disable(atdma->clk); return 0; } +static void atc_resume_cyclic(struct at_dma_chan *atchan) +{ + struct at_dma *atdma = to_at_dma(atchan->chan_common.device); + + /* restore channel status for cyclic descriptors list: + * next descriptor in the cyclic list at the time of suspend */ + channel_writel(atchan, SADDR, 0); + channel_writel(atchan, DADDR, 0); + channel_writel(atchan, CTRLA, 0); + channel_writel(atchan, CTRLB, 0); + channel_writel(atchan, DSCR, atchan->save_dscr); + dma_writel(atdma, CHER, atchan->mask); + + /* channel pause status should be removed by channel user + * We cannot take the initiative to do it here */ + + vdbg_dump_regs(atchan); +} + static int at_dma_resume_noirq(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); struct at_dma *atdma = platform_get_drvdata(pdev); + struct dma_chan *chan, *_chan; + /* bring back DMA controller */ clk_enable(atdma->clk); dma_writel(atdma, EN, AT_DMA_ENABLE); + + /* clear any pending interrupt */ + while (dma_readl(atdma, EBCISR)) + cpu_relax(); + + /* restore saved data */ + dma_writel(atdma, EBCIER, atdma->save_imr); + list_for_each_entry_safe(chan, _chan, &atdma->dma_common.channels, + device_node) { + struct at_dma_chan *atchan = to_at_dma_chan(chan); + + channel_writel(atchan, CFG, atchan->save_cfg); + if (test_bit(ATC_IS_CYCLIC, &atchan->status)) + atc_resume_cyclic(atchan); + } return 0; } static const struct dev_pm_ops at_dma_dev_pm_ops = { + .prepare = at_dma_prepare, .suspend_noirq = at_dma_suspend_noirq, .resume_noirq = at_dma_resume_noirq, }; diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h index 087dbf1dd39c..6f0c4a3eb091 100644 --- a/drivers/dma/at_hdmac_regs.h +++ b/drivers/dma/at_hdmac_regs.h @@ -204,6 +204,9 @@ enum atc_status { * @status: transmit status information from irq/prep* functions * to tasklet (use atomic operations) * @tasklet: bottom half to finish transaction work + * @save_cfg: configuration register that is saved on suspend/resume cycle + * @save_dscr: for cyclic operations, preserve next descriptor address in + * the cyclic list on suspend/resume cycle * @lock: serializes enqueue/dequeue operations to descriptors lists * @completed_cookie: identifier for the most recently completed operation * @active_list: list of descriptors dmaengine is being running on @@ -218,6 +221,8 @@ struct at_dma_chan { u8 mask; unsigned long status; struct tasklet_struct tasklet; + u32 save_cfg; + u32 save_dscr; spinlock_t lock; @@ -248,6 +253,7 @@ static inline struct at_dma_chan *to_at_dma_chan(struct dma_chan *dchan) * @chan_common: common dmaengine dma_device object members * @ch_regs: memory mapped register base * @clk: dma controller clock + * @save_imr: interrupt mask register that is saved on suspend/resume cycle * @all_chan_mask: all channels availlable in a mask * @dma_desc_pool: base of DMA descriptor region (DMA address) * @chan: channels table to store at_dma_chan structures @@ -256,6 +262,7 @@ struct at_dma { struct dma_device dma_common; void __iomem *regs; struct clk *clk; + u32 save_imr; u8 all_chan_mask; -- cgit v1.2.3 From 3c477482bb9f976e5451c50be7d3d60ea6f88646 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 25 Jul 2011 21:09:23 +0000 Subject: dmaengine: at_hdmac: add wrappers for testing channel state Cyclic property and paused state are encoded as bits in the channel status bitfield. Tests of those bits are wrapped in convenient helper functions. Signed-off-by: Nicolas Ferre Signed-off-by: Vinod Koul --- drivers/dma/at_hdmac.c | 19 +++++++++---------- drivers/dma/at_hdmac_regs.h | 17 +++++++++++++++++ 2 files changed, 26 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 0ead008e3bdf..d774800b9fa4 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -301,7 +301,7 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc) /* for cyclic transfers, * no need to replay callback function while stopping */ - if (!test_bit(ATC_IS_CYCLIC, &atchan->status)) { + if (!atc_chan_is_cyclic(atchan)) { dma_async_tx_callback callback = txd->callback; void *param = txd->callback_param; @@ -478,7 +478,7 @@ static void atc_tasklet(unsigned long data) spin_lock_irqsave(&atchan->lock, flags); if (test_and_clear_bit(ATC_IS_ERROR, &atchan->status)) atc_handle_error(atchan); - else if (test_bit(ATC_IS_CYCLIC, &atchan->status)) + else if (atc_chan_is_cyclic(atchan)) atc_handle_cyclic(atchan); else atc_advance_work(atchan); @@ -945,7 +945,7 @@ static int atc_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, spin_unlock_irqrestore(&atchan->lock, flags); } else if (cmd == DMA_RESUME) { - if (!test_bit(ATC_IS_PAUSED, &atchan->status)) + if (!atc_chan_is_paused(atchan)) return 0; spin_lock_irqsave(&atchan->lock, flags); @@ -1035,7 +1035,7 @@ atc_tx_status(struct dma_chan *chan, else dma_set_tx_state(txstate, last_complete, last_used, 0); - if (test_bit(ATC_IS_PAUSED, &atchan->status)) + if (atc_chan_is_paused(atchan)) ret = DMA_PAUSED; dev_vdbg(chan2dev(chan), "tx_status %d: cookie = %d (d%d, u%d)\n", @@ -1057,7 +1057,7 @@ static void atc_issue_pending(struct dma_chan *chan) dev_vdbg(chan2dev(chan), "issue_pending\n"); /* Not needed for cyclic transfers */ - if (test_bit(ATC_IS_CYCLIC, &atchan->status)) + if (atc_chan_is_cyclic(atchan)) return; spin_lock_irqsave(&atchan->lock, flags); @@ -1395,8 +1395,7 @@ static int at_dma_prepare(struct device *dev) device_node) { struct at_dma_chan *atchan = to_at_dma_chan(chan); /* wait for transaction completion (except in cyclic case) */ - if (atc_chan_is_enabled(atchan) && - !test_bit(ATC_IS_CYCLIC, &atchan->status)) + if (atc_chan_is_enabled(atchan) && !atc_chan_is_cyclic(atchan)) return -EAGAIN; } return 0; @@ -1408,7 +1407,7 @@ static void atc_suspend_cyclic(struct at_dma_chan *atchan) /* Channel should be paused by user * do it anyway even if it is not done already */ - if (!test_bit(ATC_IS_PAUSED, &atchan->status)) { + if (!atc_chan_is_paused(atchan)) { dev_warn(chan2dev(chan), "cyclic channel not paused, should be done by channel user\n"); atc_control(chan, DMA_PAUSE, 0); @@ -1432,7 +1431,7 @@ static int at_dma_suspend_noirq(struct device *dev) device_node) { struct at_dma_chan *atchan = to_at_dma_chan(chan); - if (test_bit(ATC_IS_CYCLIC, &atchan->status)) + if (atc_chan_is_cyclic(atchan)) atc_suspend_cyclic(atchan); atchan->save_cfg = channel_readl(atchan, CFG); } @@ -1484,7 +1483,7 @@ static int at_dma_resume_noirq(struct device *dev) struct at_dma_chan *atchan = to_at_dma_chan(chan); channel_writel(atchan, CFG, atchan->save_cfg); - if (test_bit(ATC_IS_CYCLIC, &atchan->status)) + if (atc_chan_is_cyclic(atchan)) atc_resume_cyclic(atchan); } return 0; diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h index 6f0c4a3eb091..aa4c9aebab7c 100644 --- a/drivers/dma/at_hdmac_regs.h +++ b/drivers/dma/at_hdmac_regs.h @@ -362,6 +362,23 @@ static inline int atc_chan_is_enabled(struct at_dma_chan *atchan) return !!(dma_readl(atdma, CHSR) & atchan->mask); } +/** + * atc_chan_is_paused - test channel pause/resume status + * @atchan: channel we want to test status + */ +static inline int atc_chan_is_paused(struct at_dma_chan *atchan) +{ + return test_bit(ATC_IS_PAUSED, &atchan->status); +} + +/** + * atc_chan_is_cyclic - test if given channel has cyclic property set + * @atchan: channel we want to test status + */ +static inline int atc_chan_is_cyclic(struct at_dma_chan *atchan) +{ + return test_bit(ATC_IS_CYCLIC, &atchan->status); +} /** * set_desc_eol - set end-of-link to descriptor so it will end transfer -- cgit v1.2.3 From d7db80801f8117cf210b9e2cd2c800e326d59fa2 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Fri, 5 Aug 2011 11:43:44 +0000 Subject: dmaengine: at_hdmac: fix way to specify cyclic capability In this driver, we can trigger cyclic transfer on peripherals-DMA interfaces. It is dependent on driver implementation but cannot depend on a platform property: we remove the dma_has_cap(DMA_CYCLIC, ) test which has no meaning. Signed-off-by: Nicolas Ferre Signed-off-by: Vinod Koul --- drivers/dma/at_hdmac.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index d774800b9fa4..3b99dc62874b 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -1301,15 +1301,13 @@ static int __init at_dma_probe(struct platform_device *pdev) if (dma_has_cap(DMA_MEMCPY, atdma->dma_common.cap_mask)) atdma->dma_common.device_prep_dma_memcpy = atc_prep_dma_memcpy; - if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask)) + if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask)) { atdma->dma_common.device_prep_slave_sg = atc_prep_slave_sg; - - if (dma_has_cap(DMA_CYCLIC, atdma->dma_common.cap_mask)) + /* controller can do slave DMA: can trigger cyclic transfers */ + dma_cap_set(DMA_CYCLIC, atdma->dma_common.cap_mask); atdma->dma_common.device_prep_dma_cyclic = atc_prep_dma_cyclic; - - if (dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask) || - dma_has_cap(DMA_CYCLIC, atdma->dma_common.cap_mask)) atdma->dma_common.device_control = atc_control; + } dma_writel(atdma, EN, AT_DMA_ENABLE); -- cgit v1.2.3 From e03c8dd14915fabc101aa495828d58598dc5af98 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Tue, 23 Aug 2011 20:12:04 +0200 Subject: loop: always allow userspace partitions and optionally support automatic scanning Automatic partition scanning can be requested individually per loop device during its setup by setting LO_FLAGS_PARTSCAN. By default, no partition tables are scanned. Userspace can now always add and remove partitions from all loop devices, regardless if the in-kernel partition scanner is enabled or not. The needed partition minor numbers are allocated from the extended minors space, the main loop device numbers will continue to match the loop minors, regardless of the number of partitions used. # grep . /sys/class/block/loop1/loop/* /sys/block/loop1/loop/autoclear:0 /sys/block/loop1/loop/backing_file:/home/kay/data/stuff/part.img /sys/block/loop1/loop/offset:0 /sys/block/loop1/loop/partscan:1 /sys/block/loop1/loop/sizelimit:0 # ls -l /dev/loop* brw-rw---- 1 root disk 7, 0 Aug 14 20:22 /dev/loop0 brw-rw---- 1 root disk 7, 1 Aug 14 20:23 /dev/loop1 brw-rw---- 1 root disk 259, 0 Aug 14 20:23 /dev/loop1p1 brw-rw---- 1 root disk 259, 1 Aug 14 20:23 /dev/loop1p2 brw-rw---- 1 root disk 7, 99 Aug 14 20:23 /dev/loop99 brw-rw---- 1 root disk 259, 2 Aug 14 20:23 /dev/loop99p1 brw-rw---- 1 root disk 259, 3 Aug 14 20:23 /dev/loop99p2 crw------T 1 root root 10, 237 Aug 14 20:22 /dev/loop-control Cc: Karel Zak Cc: Davidlohr Bueso Acked-By: Tejun Heo Signed-off-by: Kay Sievers Signed-off-by: Jens Axboe --- drivers/block/loop.c | 49 +++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 45 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 936cac3c3126..b336433f8157 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -724,7 +724,7 @@ static int loop_change_fd(struct loop_device *lo, struct block_device *bdev, goto out_putf; fput(old_file); - if (max_part > 0) + if (lo->lo_flags & LO_FLAGS_PARTSCAN) ioctl_by_bdev(bdev, BLKRRPART, 0); return 0; @@ -808,16 +808,25 @@ static ssize_t loop_attr_autoclear_show(struct loop_device *lo, char *buf) return sprintf(buf, "%s\n", autoclear ? "1" : "0"); } +static ssize_t loop_attr_partscan_show(struct loop_device *lo, char *buf) +{ + int partscan = (lo->lo_flags & LO_FLAGS_PARTSCAN); + + return sprintf(buf, "%s\n", partscan ? "1" : "0"); +} + LOOP_ATTR_RO(backing_file); LOOP_ATTR_RO(offset); LOOP_ATTR_RO(sizelimit); LOOP_ATTR_RO(autoclear); +LOOP_ATTR_RO(partscan); static struct attribute *loop_attrs[] = { &loop_attr_backing_file.attr, &loop_attr_offset.attr, &loop_attr_sizelimit.attr, &loop_attr_autoclear.attr, + &loop_attr_partscan.attr, NULL, }; @@ -979,7 +988,9 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, } lo->lo_state = Lo_bound; wake_up_process(lo->lo_thread); - if (max_part > 0) + if (part_shift) + lo->lo_flags |= LO_FLAGS_PARTSCAN; + if (lo->lo_flags & LO_FLAGS_PARTSCAN) ioctl_by_bdev(bdev, BLKRRPART, 0); return 0; @@ -1070,7 +1081,6 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev) lo->lo_offset = 0; lo->lo_sizelimit = 0; lo->lo_encrypt_key_size = 0; - lo->lo_flags = 0; lo->lo_thread = NULL; memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE); memset(lo->lo_crypt_name, 0, LO_NAME_SIZE); @@ -1088,8 +1098,11 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev) lo->lo_state = Lo_unbound; /* This is safe: open() is still holding a reference. */ module_put(THIS_MODULE); - if (max_part > 0 && bdev) + if (lo->lo_flags & LO_FLAGS_PARTSCAN && bdev) ioctl_by_bdev(bdev, BLKRRPART, 0); + lo->lo_flags = 0; + if (!part_shift) + lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN; mutex_unlock(&lo->lo_ctl_mutex); /* * Need not hold lo_ctl_mutex to fput backing file. @@ -1159,6 +1172,13 @@ loop_set_status(struct loop_device *lo, const struct loop_info64 *info) (info->lo_flags & LO_FLAGS_AUTOCLEAR)) lo->lo_flags ^= LO_FLAGS_AUTOCLEAR; + if ((info->lo_flags & LO_FLAGS_PARTSCAN) && + !(lo->lo_flags & LO_FLAGS_PARTSCAN)) { + lo->lo_flags |= LO_FLAGS_PARTSCAN; + lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN; + ioctl_by_bdev(lo->lo_device, BLKRRPART, 0); + } + lo->lo_encrypt_key_size = info->lo_encrypt_key_size; lo->lo_init[0] = info->lo_init[0]; lo->lo_init[1] = info->lo_init[1]; @@ -1654,6 +1674,27 @@ static struct loop_device *loop_alloc(int i) if (!disk) goto out_free_queue; + /* + * Disable partition scanning by default. The in-kernel partition + * scanning can be requested individually per-device during its + * setup. Userspace can always add and remove partitions from all + * devices. The needed partition minors are allocated from the + * extended minor space, the main loop device numbers will continue + * to match the loop minors, regardless of the number of partitions + * used. + * + * If max_part is given, partition scanning is globally enabled for + * all loop devices. The minors for the main loop devices will be + * multiples of max_part. + * + * Note: Global-for-all-devices, set-only-at-init, read-only module + * parameteters like 'max_loop' and 'max_part' make things needlessly + * complicated, are too static, inflexible and may surprise + * userspace tools. Parameters like this in general should be avoided. + */ + if (!part_shift) + disk->flags |= GENHD_FL_NO_PART_SCAN; + disk->flags |= GENHD_FL_EXT_DEVT; mutex_init(&lo->lo_ctl_mutex); lo->lo_number = i; lo->lo_thread = NULL; -- cgit v1.2.3 From 3e27ee8448bcbc8b4f060b107aa622c116f287ab Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:27 +0530 Subject: dmaengine/amba-pl08x: Resolve formatting issues There were few formatting related issues in code. This patch fixes them. Fixes include: - Remove extra blank lines - align code to 80 cols - combine several lines to one line Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 41 ++++++++++++++++------------------------- 1 file changed, 16 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 196a7378d332..4c4a3092e09c 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -125,7 +125,8 @@ struct pl08x_lli { * @phy_chans: array of data for the physical channels * @pool: a pool for the LLI descriptors * @pool_ctr: counter of LLIs in the pool - * @lli_buses: bitmask to or in to LLI pointer selecting AHB port for LLI fetches + * @lli_buses: bitmask to or in to LLI pointer selecting AHB port for LLI + * fetches * @mem_buses: set to indicate memory transfers on AHB2. * @lock: a spinlock for this struct */ @@ -271,7 +272,6 @@ static void pl08x_resume_phy_chan(struct pl08x_phy_chan *ch) writel(val, ch->base + PL080_CH_CONFIG); } - /* * pl08x_terminate_phy_chan() stops the channel, clears the FIFO and * clears any pending interrupt status. This should not be used for @@ -546,7 +546,8 @@ static void pl08x_fill_lli_for_desc(struct pl08x_lli_build_data *bd, llis_va[num_llis].cctl = cctl; llis_va[num_llis].src = bd->srcbus.addr; llis_va[num_llis].dst = bd->dstbus.addr; - llis_va[num_llis].lli = llis_bus + (num_llis + 1) * sizeof(struct pl08x_lli); + llis_va[num_llis].lli = llis_bus + (num_llis + 1) * + sizeof(struct pl08x_lli); llis_va[num_llis].lli |= bd->lli_bus; if (cctl & PL080_CONTROL_SRC_INCR) @@ -583,12 +584,10 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, struct pl08x_lli_build_data bd; int num_llis = 0; u32 cctl; - size_t max_bytes_per_lli; - size_t total_bytes = 0; + size_t max_bytes_per_lli, total_bytes = 0; struct pl08x_lli *llis_va; - txd->llis_va = dma_pool_alloc(pl08x->pool, GFP_NOWAIT, - &txd->llis_bus); + txd->llis_va = dma_pool_alloc(pl08x->pool, GFP_NOWAIT, &txd->llis_bus); if (!txd->llis_va) { dev_err(&pl08x->adev->dev, "%s no memory for llis\n", __func__); return 0; @@ -779,7 +778,6 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, total_bytes += lli_len; } - if (odd_bytes) { /* * Creep past the boundary, maintaining @@ -916,9 +914,7 @@ static int prep_phy_channel(struct pl08x_dma_chan *plchan, * need, but for slaves the physical signals may be muxed! * Can the platform allow us to use this channel? */ - if (plchan->slave && - ch->signal < 0 && - pl08x->pd->get_signal) { + if (plchan->slave && ch->signal < 0 && pl08x->pd->get_signal) { ret = pl08x->pd->get_signal(plchan); if (ret < 0) { dev_dbg(&pl08x->adev->dev, @@ -1007,10 +1003,8 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_interrupt( * If slaves are relying on interrupts to signal completion this function * must not be called with interrupts disabled. */ -static enum dma_status -pl08x_dma_tx_status(struct dma_chan *chan, - dma_cookie_t cookie, - struct dma_tx_state *txstate) +static enum dma_status pl08x_dma_tx_status(struct dma_chan *chan, + dma_cookie_t cookie, struct dma_tx_state *txstate) { struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); dma_cookie_t last_used; @@ -1588,8 +1582,8 @@ static void pl08x_tasklet(unsigned long data) */ list_for_each_entry(waiting, &pl08x->memcpy.channels, chan.device_node) { - if (waiting->state == PL08X_CHAN_WAITING && - waiting->waiting != NULL) { + if (waiting->state == PL08X_CHAN_WAITING && + waiting->waiting != NULL) { int ret; /* This should REALLY not fail now */ @@ -1684,9 +1678,7 @@ static void pl08x_dma_slave_init(struct pl08x_dma_chan *chan) * Make a local wrapper to hold required data */ static int pl08x_dma_init_virtual_channels(struct pl08x_driver_data *pl08x, - struct dma_device *dmadev, - unsigned int channels, - bool slave) + struct dma_device *dmadev, unsigned int channels, bool slave) { struct pl08x_dma_chan *chan; int i; @@ -1836,9 +1828,9 @@ static const struct file_operations pl08x_debugfs_operations = { static void init_pl08x_debugfs(struct pl08x_driver_data *pl08x) { /* Expose a simple debugfs interface to view all clocks */ - (void) debugfs_create_file(dev_name(&pl08x->adev->dev), S_IFREG | S_IRUGO, - NULL, pl08x, - &pl08x_debugfs_operations); + (void) debugfs_create_file(dev_name(&pl08x->adev->dev), + S_IFREG | S_IRUGO, NULL, pl08x, + &pl08x_debugfs_operations); } #else @@ -1973,8 +1965,7 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) /* Register slave channels */ ret = pl08x_dma_init_virtual_channels(pl08x, &pl08x->slave, - pl08x->pd->num_slave_channels, - true); + pl08x->pd->num_slave_channels, true); if (ret <= 0) { dev_warn(&pl08x->adev->dev, "%s failed to enumerate slave channels - %d\n", -- cgit v1.2.3 From 0c38d70139138713e66c6f98e19a0320014476ff Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:28 +0530 Subject: dmaengine/amba-pl08x: Rearrange inclusion of header files in ascending order Header files included in driver are not present in alphabetical order. Rearrange them in alphabetical order. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 4c4a3092e09c..8e2056bf1623 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -74,19 +74,18 @@ * Global TODO: * - Break out common code from arch/arm/mach-s3c64xx and share */ -#include -#include -#include -#include -#include -#include -#include -#include #include #include #include +#include +#include +#include +#include +#include +#include +#include #include - +#include #include #define DRIVER_NAME "pl08xdmac" -- cgit v1.2.3 From b201c111c87a4cf36d009abe57c62bd14d17d762 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:29 +0530 Subject: dmaengine/amba-pl08x: pass (*ptr) to sizeof() instead of (struct xyz) As mentioned in Documentation/CodingStyle, The preferred form for passing a size of a struct is the following: p = kmalloc(sizeof(*p), ...); The alternative form where struct name is spelled out hurts readability and introduces an opportunity for a bug when the pointer variable type is changed but the corresponding sizeof that is passed to a memory allocator is not. This patch replaces (struct xyz) with *ptr at several occurrences in driver. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 8e2056bf1623..01c2f507e950 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1293,7 +1293,7 @@ static int pl08x_prep_channel_resources(struct pl08x_dma_chan *plchan, static struct pl08x_txd *pl08x_get_txd(struct pl08x_dma_chan *plchan, unsigned long flags) { - struct pl08x_txd *txd = kzalloc(sizeof(struct pl08x_txd), GFP_NOWAIT); + struct pl08x_txd *txd = kzalloc(sizeof(*txd), GFP_NOWAIT); if (txd) { dma_async_tx_descriptor_init(&txd->tx, &plchan->chan); @@ -1690,7 +1690,7 @@ static int pl08x_dma_init_virtual_channels(struct pl08x_driver_data *pl08x, * to cope with that situation. */ for (i = 0; i < channels; i++) { - chan = kzalloc(sizeof(struct pl08x_dma_chan), GFP_KERNEL); + chan = kzalloc(sizeof(*chan), GFP_KERNEL); if (!chan) { dev_err(&pl08x->adev->dev, "%s no memory for channel\n", __func__); @@ -1850,7 +1850,7 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) return ret; /* Create the driver state holder */ - pl08x = kzalloc(sizeof(struct pl08x_driver_data), GFP_KERNEL); + pl08x = kzalloc(sizeof(*pl08x), GFP_KERNEL); if (!pl08x) { ret = -ENOMEM; goto out_no_pl08x; @@ -1929,7 +1929,7 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) } /* Initialize physical channels */ - pl08x->phy_chans = kmalloc((vd->channels * sizeof(struct pl08x_phy_chan)), + pl08x->phy_chans = kmalloc((vd->channels * sizeof(*pl08x->phy_chans)), GFP_KERNEL); if (!pl08x->phy_chans) { dev_err(&adev->dev, "%s failed to allocate " -- cgit v1.2.3 From 0532e6fced3c4f6a4eda7f078d8aa36405647c07 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:31 +0530 Subject: dmaengine/amba-pl08x: Remove redundant comment and rewrite original Similar comment is present over routine also pl08x_choose_master_bus(). Keeping one of them. Also rewrite that comment to convey message clearly. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 01c2f507e950..6c52959b00af 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -497,9 +497,13 @@ struct pl08x_lli_build_data { }; /* - * Autoselect a master bus to use for the transfer this prefers the - * destination bus if both available if fixed address on one bus the - * other will be chosen + * Autoselect a master bus to use for the transfer. Slave will be the chosen as + * victim in case src & dest are not similarly aligned. i.e. If after aligning + * masters address with width requirements of transfer (by sending few byte by + * byte data), slave is still not aligned, then its width will be reduced to + * BYTE. + * - prefers the destination bus if both available + * - if fixed address on one bus the other will be chosen */ static void pl08x_choose_master_bus(struct pl08x_lli_build_data *bd, struct pl08x_bus_data **mbus, struct pl08x_bus_data **sbus, u32 cctl) @@ -625,11 +629,6 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, /* We need to count this down to zero */ bd.remainder = txd->len; - /* - * Choose bus to align to - * - prefers destination bus if both available - * - if fixed address on one bus chooses other - */ pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl); dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu llimax=%zu\n", -- cgit v1.2.3 From 175a5e617cd820d9e22d9e4f6d3ef736b2f874b1 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:32 +0530 Subject: dmaengine/amba-pl08x: Changing few prints to dev_dbg from dev_info For 8 memory and 16 slave channels 35 boot print lines are printed. And that is too much. Most of this would be more useful for debugging. So moving few of them to dev_dbg instead of dev_info. Now only 3 prints will be printed. This also rearrange one of the debug message to fit into two lines. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 6c52959b00af..ead88c9a5e93 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1717,7 +1717,7 @@ static int pl08x_dma_init_virtual_channels(struct pl08x_driver_data *pl08x, kfree(chan); continue; } - dev_info(&pl08x->adev->dev, + dev_dbg(&pl08x->adev->dev, "initialize virtual channel \"%s\"\n", chan->name); @@ -1945,9 +1945,8 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) spin_lock_init(&ch->lock); ch->serving = NULL; ch->signal = -1; - dev_info(&adev->dev, - "physical channel %d is %s\n", i, - pl08x_phy_channel_busy(ch) ? "BUSY" : "FREE"); + dev_dbg(&adev->dev, "physical channel %d is %s\n", + i, pl08x_phy_channel_busy(ch) ? "BUSY" : "FREE"); } /* Register as many memcpy channels as there are physical channels */ -- cgit v1.2.3 From b7b6018bad6fd7ebe5a78bda5f2a71a6ecf5406a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:33 +0530 Subject: dmaengine/amba-pl08x: support runtime PM Insert notifiers for the runtime PM API. With this the runtime PM layer kicks in to action where used. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index ead88c9a5e93..5dd97f450925 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -84,6 +84,7 @@ #include #include #include +#include #include #include #include @@ -405,6 +406,7 @@ pl08x_get_phy_channel(struct pl08x_driver_data *pl08x, return NULL; } + pm_runtime_get_sync(&pl08x->adev->dev); return ch; } @@ -418,6 +420,8 @@ static inline void pl08x_put_phy_channel(struct pl08x_driver_data *pl08x, /* Stop the channel and clear its interrupts */ pl08x_terminate_phy_chan(pl08x, ch); + pm_runtime_put(&pl08x->adev->dev); + /* Mark it as free */ ch->serving = NULL; spin_unlock_irqrestore(&ch->lock, flags); @@ -1855,6 +1859,9 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) goto out_no_pl08x; } + pm_runtime_set_active(&adev->dev); + pm_runtime_enable(&adev->dev); + /* Initialize memcpy engine */ dma_cap_set(DMA_MEMCPY, pl08x->memcpy.cap_mask); pl08x->memcpy.dev = &adev->dev; @@ -1992,6 +1999,8 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) dev_info(&pl08x->adev->dev, "DMA: PL%03x rev%u at 0x%08llx irq %d\n", amba_part(adev), amba_rev(adev), (unsigned long long)adev->res.start, adev->irq[0]); + + pm_runtime_put(&adev->dev); return 0; out_no_slave_reg: @@ -2010,6 +2019,9 @@ out_no_ioremap: dma_pool_destroy(pl08x->pool); out_no_lli_pool: out_no_platdata: + pm_runtime_put(&adev->dev); + pm_runtime_disable(&adev->dev); + kfree(pl08x); out_no_pl08x: amba_release_regions(adev); -- cgit v1.2.3 From 48a59ef3579492855d41405f8bf0a2983e061976 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:34 +0530 Subject: dmaengine/amba-pl08x: Simplify pl08x_ensure_on() Simply writing 1 on bit 0 is sufficient instead of reading and clearing bits. Also as per manual, for bit 3-31 of DMACConfiguration register: "read undefined, write as 0" So, we must not rely on values read from this registers bit 3-31. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 5dd97f450925..d79688d64886 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1502,13 +1502,7 @@ bool pl08x_filter_id(struct dma_chan *chan, void *chan_id) */ static void pl08x_ensure_on(struct pl08x_driver_data *pl08x) { - u32 val; - - val = readl(pl08x->base + PL080_CONFIG); - val &= ~(PL080_CONFIG_M2_BE | PL080_CONFIG_M1_BE | PL080_CONFIG_ENABLE); - /* We implicitly clear bit 1 and that means little-endian mode */ - val |= PL080_CONFIG_ENABLE; - writel(val, pl08x->base + PL080_CONFIG); + writel(PL080_CONFIG_ENABLE, pl08x->base + PL080_CONFIG); } static void pl08x_unmap_buffers(struct pl08x_txd *txd) -- cgit v1.2.3 From 16ca8105040217acf5b4b506d04bb933fb3a76af Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:35 +0530 Subject: dmaengine/amba-pl08x: No need to check "ch->signal < 0" We have just executed following in pl08x_get_phy_channel(): ch->signal = -1; We don't have to compare "ch->signal < 0", as this will always be true. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index d79688d64886..3653961b6088 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -916,7 +916,7 @@ static int prep_phy_channel(struct pl08x_dma_chan *plchan, * need, but for slaves the physical signals may be muxed! * Can the platform allow us to use this channel? */ - if (plchan->slave && ch->signal < 0 && pl08x->pd->get_signal) { + if (plchan->slave && pl08x->pd->get_signal) { ret = pl08x->pd->get_signal(plchan); if (ret < 0) { dev_dbg(&pl08x->adev->dev, -- cgit v1.2.3 From 28da28365da3f3bea1d4b7212a8a40e4b9ac3229 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:36 +0530 Subject: dmaengine/amba-pl08x: Schedule tasklet in case of error interrupt Currently, if error interrupt occurs, nothing is done in interrupt handler (just clearing the interrupts). We must somehow indicate this to the user that DMA is over, due to ERR interrupt or TC interrupt. So, this patch just schedules existing tasklet, with a print showing error interrupt has occurred on which channels. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 44 +++++++++++++++++++++++--------------------- 1 file changed, 23 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 3653961b6088..6bba32e5ddb8 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1619,38 +1619,40 @@ static void pl08x_tasklet(unsigned long data) static irqreturn_t pl08x_irq(int irq, void *dev) { struct pl08x_driver_data *pl08x = dev; - u32 mask = 0; - u32 val; - int i; - - val = readl(pl08x->base + PL080_ERR_STATUS); - if (val) { - /* An error interrupt (on one or more channels) */ - dev_err(&pl08x->adev->dev, - "%s error interrupt, register value 0x%08x\n", - __func__, val); - /* - * Simply clear ALL PL08X error interrupts, - * regardless of channel and cause - * FIXME: should be 0x00000003 on PL081 really. - */ - writel(0x000000FF, pl08x->base + PL080_ERR_CLEAR); + u32 mask = 0, err, tc, i; + + /* check & clear - ERR & TC interrupts */ + err = readl(pl08x->base + PL080_ERR_STATUS); + if (err) { + dev_err(&pl08x->adev->dev, "%s error interrupt, register value 0x%08x\n", + __func__, err); + writel(err, pl08x->base + PL080_ERR_CLEAR); } - val = readl(pl08x->base + PL080_INT_STATUS); + tc = readl(pl08x->base + PL080_INT_STATUS); + if (tc) + writel(tc, pl08x->base + PL080_TC_CLEAR); + + if (!err && !tc) + return IRQ_NONE; + for (i = 0; i < pl08x->vd->channels; i++) { - if ((1 << i) & val) { + if (((1 << i) & err) || ((1 << i) & tc)) { /* Locate physical channel */ struct pl08x_phy_chan *phychan = &pl08x->phy_chans[i]; struct pl08x_dma_chan *plchan = phychan->serving; + if (!plchan) { + dev_err(&pl08x->adev->dev, + "%s Error TC interrupt on unused channel: 0x%08x\n", + __func__, i); + continue; + } + /* Schedule tasklet on this channel */ tasklet_schedule(&plchan->tasklet); - mask |= (1 << i); } } - /* Clear only the terminal interrupts on channels we processed */ - writel(mask, pl08x->base + PL080_TC_CLEAR); return mask ? IRQ_HANDLED : IRQ_NONE; } -- cgit v1.2.3 From 16a2e7d359b9fc64fb8a6717c0642691b1e60bb7 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:37 +0530 Subject: dmaengine/amba-pl08x: Get rid of pl08x_pre_boundary() Pl080 Manual says: "Bursts do not cross the 1KB address boundary" We can program the controller to cross 1 KB boundary on a burst and controller can take care of this boundary condition by itself. Following is the discussion with ARM Technical Support Guys (David): [Viresh] Manual says: "Bursts do not cross the 1KB address boundary" What does that actually mean? As, Maximum size transferable with a single LLI is 4095 * 4 =16380 ~ 16KB. So, if we don't have src/dest address aligned to burst size, we can't use this big of an LLI. [David] There is a difference between bursts describing the total data transferred by the DMA controller and AHB bursts. Bursts described by the programmable parameters in the PL080 have no direct connection with the bursts that are seen on the AHB bus. The statement that "Bursts do not cross the 1KB address boundary" in the TRM is referring to AHB bursts, where this limitation is a requirement of the AHB spec. You can still issue bursts within the PL080 that are in excess of 1KB. The PL080 will make sure that its bursts are broken down into legal AHB bursts which will be formatted to ensure that no AHB burst crosses a 1KB boundary. Based on above discussion, this patch removes all code related to 1 KB boundary as we are not required to handle this in driver. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 141 ++++++----------------------------------------- 1 file changed, 17 insertions(+), 124 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 6bba32e5ddb8..be9a1c718f9a 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -149,14 +149,6 @@ struct pl08x_driver_data { * PL08X specific defines */ -/* - * Memory boundaries: the manual for PL08x says that the controller - * cannot read past a 1KiB boundary, so these defines are used to - * create transfer LLIs that do not cross such boundaries. - */ -#define PL08X_BOUNDARY_SHIFT (10) /* 1KB 0x400 */ -#define PL08X_BOUNDARY_SIZE (1 << PL08X_BOUNDARY_SHIFT) - /* Size (bytes) of each LLI buffer allocated for one transfer */ # define PL08X_LLI_TSFR_SIZE 0x2000 @@ -567,18 +559,6 @@ static void pl08x_fill_lli_for_desc(struct pl08x_lli_build_data *bd, bd->remainder -= len; } -/* - * Return number of bytes to fill to boundary, or len. - * This calculation works for any value of addr. - */ -static inline size_t pl08x_pre_boundary(u32 addr, size_t len) -{ - size_t boundary_len = PL08X_BOUNDARY_SIZE - - (addr & (PL08X_BOUNDARY_SIZE - 1)); - - return min(boundary_len, len); -} - /* * This fills in the table of LLIs for the transfer descriptor * Note that we assume we never have to change the burst sizes @@ -685,118 +665,30 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, * width left */ while (bd.remainder > (mbus->buswidth - 1)) { - size_t lli_len, target_len, tsize, odd_bytes; + size_t lli_len, tsize; /* * If enough left try to send max possible, * otherwise try to send the remainder */ - target_len = min(bd.remainder, max_bytes_per_lli); - + lli_len = min(bd.remainder, max_bytes_per_lli); /* - * Set bus lengths for incrementing buses to the - * number of bytes which fill to next memory boundary, - * limiting on the target length calculated above. + * Check against minimum bus alignment: Calculate actual + * transfer size in relation to bus width and get a + * maximum remainder of the smallest bus width - 1 */ - if (cctl & PL080_CONTROL_SRC_INCR) - bd.srcbus.fill_bytes = - pl08x_pre_boundary(bd.srcbus.addr, - target_len); - else - bd.srcbus.fill_bytes = target_len; - - if (cctl & PL080_CONTROL_DST_INCR) - bd.dstbus.fill_bytes = - pl08x_pre_boundary(bd.dstbus.addr, - target_len); - else - bd.dstbus.fill_bytes = target_len; - - /* Find the nearest */ - lli_len = min(bd.srcbus.fill_bytes, - bd.dstbus.fill_bytes); - - BUG_ON(lli_len > bd.remainder); - - if (lli_len <= 0) { - dev_err(&pl08x->adev->dev, - "%s lli_len is %zu, <= 0\n", - __func__, lli_len); - return 0; - } - - if (lli_len == target_len) { - /* - * Can send what we wanted. - * Maintain alignment - */ - lli_len = (lli_len/mbus->buswidth) * - mbus->buswidth; - odd_bytes = 0; - } else { - /* - * So now we know how many bytes to transfer - * to get to the nearest boundary. The next - * LLI will past the boundary. However, we - * may be working to a boundary on the slave - * bus. We need to ensure the master stays - * aligned, and that we are working in - * multiples of the bus widths. - */ - odd_bytes = lli_len % mbus->buswidth; - lli_len -= odd_bytes; - - } - - if (lli_len) { - /* - * Check against minimum bus alignment: - * Calculate actual transfer size in relation - * to bus width an get a maximum remainder of - * the smallest bus width - 1 - */ - /* FIXME: use round_down()? */ - tsize = lli_len / min(mbus->buswidth, - sbus->buswidth); - lli_len = tsize * min(mbus->buswidth, - sbus->buswidth); - - if (target_len != lli_len) { - dev_vdbg(&pl08x->adev->dev, - "%s can't send what we want. Desired 0x%08zx, lli of 0x%08zx bytes in txd of 0x%08zx\n", - __func__, target_len, lli_len, txd->len); - } - - cctl = pl08x_cctl_bits(cctl, - bd.srcbus.buswidth, - bd.dstbus.buswidth, - tsize); - - dev_vdbg(&pl08x->adev->dev, - "%s fill lli with single lli chunk of size 0x%08zx (remainder 0x%08zx)\n", - __func__, lli_len, bd.remainder); - pl08x_fill_lli_for_desc(&bd, num_llis++, - lli_len, cctl); - total_bytes += lli_len; - } + tsize = lli_len / min(mbus->buswidth, sbus->buswidth); + lli_len = tsize * min(mbus->buswidth, sbus->buswidth); - if (odd_bytes) { - /* - * Creep past the boundary, maintaining - * master alignment - */ - int j; - for (j = 0; (j < mbus->buswidth) - && (bd.remainder); j++) { - cctl = pl08x_cctl_bits(cctl, 1, 1, 1); - dev_vdbg(&pl08x->adev->dev, - "%s align with boundary, single byte (remain 0x%08zx)\n", - __func__, bd.remainder); - pl08x_fill_lli_for_desc(&bd, - num_llis++, 1, cctl); - total_bytes++; - } - } + dev_vdbg(&pl08x->adev->dev, + "%s fill lli with single lli chunk of " + "size 0x%08zx (remainder 0x%08zx)\n", + __func__, lli_len, bd.remainder); + + cctl = pl08x_cctl_bits(cctl, bd.srcbus.buswidth, + bd.dstbus.buswidth, tsize); + pl08x_fill_lli_for_desc(&bd, num_llis++, lli_len, cctl); + total_bytes += lli_len; } /* @@ -811,6 +703,7 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, total_bytes++; } } + if (total_bytes != txd->len) { dev_err(&pl08x->adev->dev, "%s size of encoded lli:s don't match total txd, transferred 0x%08zx from size 0x%08zx\n", -- cgit v1.2.3 From fa6a940bf129c5417b602a4cdfe88b3dbd8e5898 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:38 +0530 Subject: dmaengine/amba-pl08x: max_bytes_per_lli is TRANSFER_SIZE * src_width (not MIN(width)) max_bytes_per_lli = bd.srcbus.buswidth * PL080_CONTROL_TRANSFER_SIZE_MASK; This is confirmed by ARM support guys. Below is summary of mail exchange with them: [Viresh] What is the total data to be transferred in case source and destination bus widths are different. Suppose, source bus width is 2 bytes and destination is 4 bytes. Now in order to transfer 80 bytes, what should be value of TransferSize field in control reg: 40? or 20?. [David from ARM] The value that is programmed into the TransferSize field should be the number of transfers needed to achieve the required data transfer. So, to transfer 80 bytes, with a Source Width of 2, the TransferSize field = should be programmed with: Total transfer size ------------------- = 40 [Viresh] Will this change if source is 4 bytes and dest is 2? [David] Yes - the calculation then becomes: Total transfer size ------------------- =20 Also, max_bytes_per_lli must be calculated after fixing src and dest widths not before that. So move this code to the correct place. This patch also removes max_bytes_per_lli from earlier print message, as till that point max_bytes_per_lli is unknown. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index be9a1c718f9a..e5930d512b00 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -604,23 +604,17 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, bd.srcbus.buswidth = bd.srcbus.maxwidth; bd.dstbus.buswidth = bd.dstbus.maxwidth; - /* - * Bytes transferred == tsize * MIN(buswidths), not max(buswidths) - */ - max_bytes_per_lli = min(bd.srcbus.buswidth, bd.dstbus.buswidth) * - PL080_CONTROL_TRANSFER_SIZE_MASK; - /* We need to count this down to zero */ bd.remainder = txd->len; pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl); - dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu llimax=%zu\n", + dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu\n", bd.srcbus.addr, cctl & PL080_CONTROL_SRC_INCR ? "+" : "", bd.srcbus.buswidth, bd.dstbus.addr, cctl & PL080_CONTROL_DST_INCR ? "+" : "", bd.dstbus.buswidth, - bd.remainder, max_bytes_per_lli); + bd.remainder); dev_vdbg(&pl08x->adev->dev, "mbus=%s sbus=%s\n", mbus == &bd.srcbus ? "src" : "dst", sbus == &bd.srcbus ? "src" : "dst"); @@ -660,6 +654,10 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, sbus->buswidth = 1; } + /* Bytes transferred = tsize * src width, not MIN(buswidths) */ + max_bytes_per_lli = bd.srcbus.buswidth * + PL080_CONTROL_TRANSFER_SIZE_MASK; + /* * Make largest possible LLIs until less than one bus * width left -- cgit v1.2.3 From 03af500f743f486648fc8afc38593e9844411945 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:39 +0530 Subject: dmaengine/amba-pl08x: Add prep_single_byte_llis() routine Code for creating single byte llis is present at several places. Create a routine to avoid code redundancy. Also, we don't need one lli per single byte transfer, we can have single lli to do all single byte transfer. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 61 ++++++++++++++++++++++++++---------------------- 1 file changed, 33 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index e5930d512b00..45d8a5d5bccd 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -559,6 +559,14 @@ static void pl08x_fill_lli_for_desc(struct pl08x_lli_build_data *bd, bd->remainder -= len; } +static inline void prep_byte_width_lli(struct pl08x_lli_build_data *bd, + u32 *cctl, u32 len, int num_llis, size_t *total_bytes) +{ + *cctl = pl08x_cctl_bits(*cctl, 1, 1, len); + pl08x_fill_lli_for_desc(bd, num_llis, len, *cctl); + (*total_bytes) += len; +} + /* * This fills in the table of LLIs for the transfer descriptor * Note that we assume we never have to change the burst sizes @@ -570,7 +578,7 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, struct pl08x_bus_data *mbus, *sbus; struct pl08x_lli_build_data bd; int num_llis = 0; - u32 cctl; + u32 cctl, early_bytes = 0; size_t max_bytes_per_lli, total_bytes = 0; struct pl08x_lli *llis_va; @@ -619,29 +627,27 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, mbus == &bd.srcbus ? "src" : "dst", sbus == &bd.srcbus ? "src" : "dst"); - if (txd->len < mbus->buswidth) { - /* Less than a bus width available - send as single bytes */ - while (bd.remainder) { - dev_vdbg(&pl08x->adev->dev, - "%s single byte LLIs for a transfer of " - "less than a bus width (remain 0x%08x)\n", - __func__, bd.remainder); - cctl = pl08x_cctl_bits(cctl, 1, 1, 1); - pl08x_fill_lli_for_desc(&bd, num_llis++, 1, cctl); - total_bytes++; - } - } else { - /* Make one byte LLIs until master bus is aligned */ - while ((mbus->addr) % (mbus->buswidth)) { - dev_vdbg(&pl08x->adev->dev, - "%s adjustment lli for less than bus width " - "(remain 0x%08x)\n", - __func__, bd.remainder); - cctl = pl08x_cctl_bits(cctl, 1, 1, 1); - pl08x_fill_lli_for_desc(&bd, num_llis++, 1, cctl); - total_bytes++; - } + /* + * Send byte by byte for following cases + * - Less than a bus width available + * - until master bus is aligned + */ + if (bd.remainder < mbus->buswidth) + early_bytes = bd.remainder; + else if ((mbus->addr) % (mbus->buswidth)) { + early_bytes = mbus->buswidth - (mbus->addr) % (mbus->buswidth); + if ((bd.remainder - early_bytes) < mbus->buswidth) + early_bytes = bd.remainder; + } + + if (early_bytes) { + dev_vdbg(&pl08x->adev->dev, "%s byte width LLIs " + "(remain 0x%08x)\n", __func__, bd.remainder); + prep_byte_width_lli(&bd, &cctl, early_bytes, num_llis++, + &total_bytes); + } + if (bd.remainder) { /* * Master now aligned * - if slave is not then we must set its width down @@ -692,13 +698,12 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, /* * Send any odd bytes */ - while (bd.remainder) { - cctl = pl08x_cctl_bits(cctl, 1, 1, 1); + if (bd.remainder) { dev_vdbg(&pl08x->adev->dev, - "%s align with boundary, single odd byte (remain %zu)\n", + "%s align with boundary, send odd bytes (remain %zu)\n", __func__, bd.remainder); - pl08x_fill_lli_for_desc(&bd, num_llis++, 1, cctl); - total_bytes++; + prep_byte_width_lli(&bd, &cctl, bd.remainder, + num_llis++, &total_bytes); } } -- cgit v1.2.3 From e0719165801fad04073e7dcd90e4afd02aba3fb7 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:40 +0530 Subject: dmaengine/amba-pl08x: Align lli_len to max(src.width, dst.width) Currently lli_len is aligned to min of two widths, which looks to be incorrect. Instead it should be aligned to max of both widths. Lets say, total_size = 441 bytes MIN: lets check if min() suits or not: CASE 1: srcwidth = 1, dstwidth = 4 min(src, dst) = 1 i.e. We program transfer size in control reg to 441. Now, till 440 bytes everything is fine, but on the last byte DMAC can't transfer 1 byte to dst, as its width is 4. CASE 2: srcwidth = 4, dstwidth = 1 min(src, dst) = 1 i.e. we program transfer size in control reg to 110 (data transferred = 110 * srcwidth). So, here too 1 byte is left, but on the source side. MAX: Lets check if max() suits or not: CASE 3: srcwidth = 1, dstwidth = 4 max(src, dst) = 4 Aligned size is 440 i.e. We program transfer size in control reg to 440. Now, all 440 bytes will be transferred without any issues. CASE 4: srcwidth = 4, dstwidth = 1 max(src, dst) = 4 Aligned size is 440 i.e. We program transfer size in control reg to 110 (data transferred = 110 * srcwidth). Now, also all 440 bytes will be transferred without any issues. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 45d8a5d5bccd..4bcf6036f35d 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -669,20 +669,22 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, * width left */ while (bd.remainder > (mbus->buswidth - 1)) { - size_t lli_len, tsize; + size_t lli_len, tsize, width; /* * If enough left try to send max possible, * otherwise try to send the remainder */ lli_len = min(bd.remainder, max_bytes_per_lli); + /* - * Check against minimum bus alignment: Calculate actual + * Check against maximum bus alignment: Calculate actual * transfer size in relation to bus width and get a - * maximum remainder of the smallest bus width - 1 + * maximum remainder of the highest bus width - 1 */ - tsize = lli_len / min(mbus->buswidth, sbus->buswidth); - lli_len = tsize * min(mbus->buswidth, sbus->buswidth); + width = max(mbus->buswidth, sbus->buswidth); + lli_len = (lli_len / width) * width; + tsize = lli_len / bd.srcbus.buswidth; dev_vdbg(&pl08x->adev->dev, "%s fill lli with single lli chunk of " -- cgit v1.2.3 From 036f05fd6dcdb6a6b9e55703cb663112fa4c4e42 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:41 +0530 Subject: dmaengine/amba-pl08x: Choose peripheral bus as master bus When we have DMA transfers between peripheral and memory, then we shouldn't reduce width of peripheral at all, as that may be a strict requirement. But we can always reduce width of memory access, with some compromise in performance. Thus, we must select peripheral as master and not memory. Also this rearranges code to make it shorter. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 4bcf6036f35d..f70aa574c58f 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -499,34 +499,24 @@ struct pl08x_lli_build_data { * byte data), slave is still not aligned, then its width will be reduced to * BYTE. * - prefers the destination bus if both available - * - if fixed address on one bus the other will be chosen + * - prefers bus with fixed address (i.e. peripheral) */ static void pl08x_choose_master_bus(struct pl08x_lli_build_data *bd, struct pl08x_bus_data **mbus, struct pl08x_bus_data **sbus, u32 cctl) { if (!(cctl & PL080_CONTROL_DST_INCR)) { - *mbus = &bd->srcbus; - *sbus = &bd->dstbus; - } else if (!(cctl & PL080_CONTROL_SRC_INCR)) { *mbus = &bd->dstbus; *sbus = &bd->srcbus; + } else if (!(cctl & PL080_CONTROL_SRC_INCR)) { + *mbus = &bd->srcbus; + *sbus = &bd->dstbus; } else { - if (bd->dstbus.buswidth == 4) { - *mbus = &bd->dstbus; - *sbus = &bd->srcbus; - } else if (bd->srcbus.buswidth == 4) { - *mbus = &bd->srcbus; - *sbus = &bd->dstbus; - } else if (bd->dstbus.buswidth == 2) { + if (bd->dstbus.buswidth >= bd->srcbus.buswidth) { *mbus = &bd->dstbus; *sbus = &bd->srcbus; - } else if (bd->srcbus.buswidth == 2) { + } else { *mbus = &bd->srcbus; *sbus = &bd->dstbus; - } else { - /* bd->srcbus.buswidth == 1 */ - *mbus = &bd->dstbus; - *sbus = &bd->srcbus; } } } -- cgit v1.2.3 From 0a2356572b1910cc977f4ccf3c9ee1ecab08327a Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:42 +0530 Subject: dmaengine/amba-pl08x: Pass flow controller information with slave channel data At least, on SPEAr platforms there is one peripheral, JPEG, which can be flow controller for DMA transfer. Currently DMA controller driver didn't support peripheral flow controller configurations. This patch adds device_fc field in struct pl08x_channel_data, which will be used only for slave transfers and is not used in case of mem2mem transfers. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 61 +++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 53 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index f70aa574c58f..a59c3c47286c 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -66,11 +66,6 @@ * after the final transfer signalled by LBREQ or LSREQ. The DMAC * will then move to the next LLI entry. * - * Only the former works sanely with scatter lists, so we only implement - * the DMAC flow control method. However, peripherals which use the LBREQ - * and LSREQ signals (eg, MMCI) are unable to use this mode, which through - * these hardware restrictions prevents them from using scatter DMA. - * * Global TODO: * - Break out common code from arch/arm/mach-s3c64xx and share */ @@ -617,6 +612,49 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, mbus == &bd.srcbus ? "src" : "dst", sbus == &bd.srcbus ? "src" : "dst"); + /* + * Zero length is only allowed if all these requirements are met: + * - flow controller is peripheral. + * - src.addr is aligned to src.width + * - dst.addr is aligned to dst.width + * + * sg_len == 1 should be true, as there can be two cases here: + * - Memory addresses are contiguous and are not scattered. Here, Only + * one sg will be passed by user driver, with memory address and zero + * length. We pass this to controller and after the transfer it will + * receive the last burst request from peripheral and so transfer + * finishes. + * + * - Memory addresses are scattered and are not contiguous. Here, + * Obviously as DMA controller doesn't know when a lli's transfer gets + * over, it can't load next lli. So in this case, there has to be an + * assumption that only one lli is supported. Thus, we can't have + * scattered addresses. + */ + if (!bd.remainder) { + u32 fc = (txd->ccfg & PL080_CONFIG_FLOW_CONTROL_MASK) >> + PL080_CONFIG_FLOW_CONTROL_SHIFT; + if (!((fc >= PL080_FLOW_SRC2DST_DST) && + (fc <= PL080_FLOW_SRC2DST_SRC))) { + dev_err(&pl08x->adev->dev, "%s sg len can't be zero", + __func__); + return 0; + } + + if ((bd.srcbus.addr % bd.srcbus.buswidth) || + (bd.srcbus.addr % bd.srcbus.buswidth)) { + dev_err(&pl08x->adev->dev, + "%s src & dst address must be aligned to src" + " & dst width if peripheral is flow controller", + __func__); + return 0; + } + + cctl = pl08x_cctl_bits(cctl, bd.srcbus.buswidth, + bd.dstbus.buswidth, 0); + pl08x_fill_lli_for_desc(&bd, num_llis++, 0, cctl); + } + /* * Send byte by byte for following cases * - Less than a bus width available @@ -1250,7 +1288,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); struct pl08x_driver_data *pl08x = plchan->host; struct pl08x_txd *txd; - int ret; + int ret, tmp; /* * Current implementation ASSUMES only one sg @@ -1284,12 +1322,10 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( txd->len = sgl->length; if (direction == DMA_TO_DEVICE) { - txd->ccfg |= PL080_FLOW_MEM2PER << PL080_CONFIG_FLOW_CONTROL_SHIFT; txd->cctl = plchan->dst_cctl; txd->src_addr = sgl->dma_address; txd->dst_addr = plchan->dst_addr; } else if (direction == DMA_FROM_DEVICE) { - txd->ccfg |= PL080_FLOW_PER2MEM << PL080_CONFIG_FLOW_CONTROL_SHIFT; txd->cctl = plchan->src_cctl; txd->src_addr = plchan->src_addr; txd->dst_addr = sgl->dma_address; @@ -1299,6 +1335,15 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( return NULL; } + if (plchan->cd->device_fc) + tmp = (direction == DMA_TO_DEVICE) ? PL080_FLOW_MEM2PER_PER : + PL080_FLOW_PER2MEM_PER; + else + tmp = (direction == DMA_TO_DEVICE) ? PL080_FLOW_MEM2PER : + PL080_FLOW_PER2MEM; + + txd->ccfg |= tmp << PL080_CONFIG_FLOW_CONTROL_SHIFT; + ret = pl08x_prep_channel_resources(plchan, txd); if (ret) return NULL; -- cgit v1.2.3 From 57001a606f845ce2eda21a0f23e6aab20ee0cb04 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:45 +0530 Subject: dmaengine/amba-pl08x: Call pl08x_free_txd() instead of calling kfree() directly pl08x_prep_channel_resources() is calling kfree() directly for txd(). To maintain consistency in code call pl08x_free_txd() instead. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index a59c3c47286c..849eab85514b 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -1174,7 +1174,9 @@ static int pl08x_prep_channel_resources(struct pl08x_dma_chan *plchan, num_llis = pl08x_fill_llis_for_desc(pl08x, txd); if (!num_llis) { - kfree(txd); + spin_lock_irqsave(&plchan->lock, flags); + pl08x_free_txd(pl08x, txd); + spin_unlock_irqrestore(&plchan->lock, flags); return -EINVAL; } -- cgit v1.2.3 From 981ed70d8e4faf3689dbf3c48868a31d5b004d7a Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 18 Aug 2011 16:50:51 +0200 Subject: dmatest: make dmatest threads freezable Making dmatest threads freezable allows its use for system PM testing. Signed-off-by: Guennadi Liakhovetski Acked-by: Dan Williams Signed-off-by: Vinod Koul --- drivers/dma/dmatest.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index accc18441b16..eb1d8641cf5c 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -251,6 +252,7 @@ static int dmatest_func(void *data) int i; thread_name = current->comm; + set_freezable_with_signal(); ret = -ENOMEM; @@ -305,7 +307,8 @@ static int dmatest_func(void *data) dma_addr_t dma_srcs[src_cnt]; dma_addr_t dma_dsts[dst_cnt]; struct completion cmp; - unsigned long tmo = msecs_to_jiffies(timeout); + unsigned long start, tmo, end = 0 /* compiler... */; + bool reload = true; u8 align = 0; total_tests++; @@ -404,7 +407,17 @@ static int dmatest_func(void *data) } dma_async_issue_pending(chan); - tmo = wait_for_completion_timeout(&cmp, tmo); + do { + start = jiffies; + if (reload) + end = start + msecs_to_jiffies(timeout); + else if (end <= start) + end = start + 1; + tmo = wait_for_completion_interruptible_timeout(&cmp, + end - start); + reload = try_to_freeze(); + } while (tmo == -ERESTARTSYS); + status = dma_async_is_tx_complete(chan, cookie, NULL, NULL); if (tmo == 0) { -- cgit v1.2.3 From 73eab978ad6934499b83ecc920d470fe99c5e54d Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 25 Aug 2011 11:03:35 +0200 Subject: dmaengine i.MX SDMA: lock channel 0 channel0 of the sdma engine is the configuration channel. It is a shared resource and thus must be protected by a mutex. Signed-off-by: Sascha Hauer Signed-off-by: Vinod Koul --- drivers/dma/imx-sdma.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 7bd7e98548cd..f50c87c303dd 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -318,6 +318,7 @@ struct sdma_engine { dma_addr_t context_phys; struct dma_device dma_device; struct clk *clk; + struct mutex channel_0_lock; struct sdma_script_start_addrs *script_addrs; }; @@ -415,11 +416,15 @@ static int sdma_load_script(struct sdma_engine *sdma, void *buf, int size, dma_addr_t buf_phys; int ret; + mutex_lock(&sdma->channel_0_lock); + buf_virt = dma_alloc_coherent(NULL, size, &buf_phys, GFP_KERNEL); - if (!buf_virt) - return -ENOMEM; + if (!buf_virt) { + ret = -ENOMEM; + goto err_out; + } bd0->mode.command = C0_SETPM; bd0->mode.status = BD_DONE | BD_INTR | BD_WRAP | BD_EXTD; @@ -433,6 +438,9 @@ static int sdma_load_script(struct sdma_engine *sdma, void *buf, int size, dma_free_coherent(NULL, size, buf_virt, buf_phys); +err_out: + mutex_unlock(&sdma->channel_0_lock); + return ret; } @@ -656,6 +664,8 @@ static int sdma_load_context(struct sdma_channel *sdmac) dev_dbg(sdma->dev, "event_mask0 = 0x%08x\n", sdmac->event_mask0); dev_dbg(sdma->dev, "event_mask1 = 0x%08x\n", sdmac->event_mask1); + mutex_lock(&sdma->channel_0_lock); + memset(context, 0, sizeof(*context)); context->channel_state.pc = load_address; @@ -676,6 +686,8 @@ static int sdma_load_context(struct sdma_channel *sdmac) ret = sdma_run_channel(&sdma->channel[0]); + mutex_unlock(&sdma->channel_0_lock); + return ret; } @@ -1274,6 +1286,8 @@ static int __init sdma_probe(struct platform_device *pdev) if (!sdma) return -ENOMEM; + mutex_init(&sdma->channel_0_lock); + sdma->dev = &pdev->dev; iores = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- cgit v1.2.3 From 36e2f21ab481b3d6bd31b99e1de669fbbac4bd0e Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 25 Aug 2011 11:03:36 +0200 Subject: dmaengine i.MX SDMA: set firmware scripts addresses to negative value initially If we do not have a firmare script for a given transfer, the setup of this channel must fail. For this the script addresses have to be < 0 initially, not 0. Signed-off-by: Sascha Hauer Signed-off-by: Vinod Koul --- drivers/dma/imx-sdma.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index f50c87c303dd..8abf8c190aad 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1281,6 +1281,7 @@ static int __init sdma_probe(struct platform_device *pdev) struct sdma_platform_data *pdata = pdev->dev.platform_data; int i; struct sdma_engine *sdma; + s32 *saddr_arr; sdma = kzalloc(sizeof(*sdma), GFP_KERNEL); if (!sdma) @@ -1324,6 +1325,11 @@ static int __init sdma_probe(struct platform_device *pdev) goto err_alloc; } + /* initially no scripts available */ + saddr_arr = (s32 *)sdma->script_addrs; + for (i = 0; i < SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; i++) + saddr_arr[i] = -EINVAL; + if (of_id) pdev->id_entry = of_id->data; sdma->devtype = pdev->id_entry->driver_data; -- cgit v1.2.3 From 7b4b88e067d37cbbafd856121767f7e154294eb2 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 25 Aug 2011 11:03:37 +0200 Subject: dmaengine i.MX SDMA: use request_firmware_nowait The firmware blob may not be available when the driver probes. Instead of blocking the whole kernel use request_firmware_nowait() and continue without firmware. The ROM scripts can already be used then if available. For the devicetree case the ROM scripts are not available, still the probe function should not block. The driver will be unusable in this case, but we have no way of detecting this properly. The configuration of the dma channels will fail, so nothing bad should happen. Signed-off-by: Sascha Hauer Signed-off-by: Vinod Koul --- drivers/dma/imx-sdma.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 8abf8c190aad..b5cc27dc9a51 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1143,18 +1143,17 @@ static void sdma_add_scripts(struct sdma_engine *sdma, saddr_arr[i] = addr_arr[i]; } -static int __init sdma_get_firmware(struct sdma_engine *sdma, - const char *fw_name) +static void sdma_load_firmware(const struct firmware *fw, void *context) { - const struct firmware *fw; + struct sdma_engine *sdma = context; const struct sdma_firmware_header *header; - int ret; const struct sdma_script_start_addrs *addr; unsigned short *ram_code; - ret = request_firmware(&fw, fw_name, sdma->dev); - if (ret) - return ret; + if (!fw) { + dev_err(sdma->dev, "firmware not found\n"); + return; + } if (fw->size < sizeof(*header)) goto err_firmware; @@ -1184,6 +1183,16 @@ static int __init sdma_get_firmware(struct sdma_engine *sdma, err_firmware: release_firmware(fw); +} + +static int __init sdma_get_firmware(struct sdma_engine *sdma, + const char *fw_name) +{ + int ret; + + ret = request_firmware_nowait(THIS_MODULE, + FW_ACTION_HOTPLUG, fw_name, sdma->dev, + GFP_KERNEL, sdma, sdma_load_firmware); return ret; } -- cgit v1.2.3 From 0c54781bc5aaec1e23bc50a4ef757b8e8bfc693b Mon Sep 17 00:00:00 2001 From: Michael Witten Date: Thu, 25 Aug 2011 17:55:54 +0000 Subject: DocBook/drm: Clean up code comment Signed-off-by: Michael Witten --- drivers/gpu/drm/i915/i915_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index ce045a8cf82c..acf4ea84c801 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -785,8 +785,8 @@ static struct vm_operations_struct i915_gem_vm_ops = { }; static struct drm_driver driver = { - /* don't use mtrr's here, the Xserver or user space app should - * deal with them for intel hardware. + /* Don't use MTRRs here; the Xserver or userspace app should + * deal with them for Intel hardware. */ .driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/ -- cgit v1.2.3 From ce395088832bfd56bd28824b31a6a3685f3fd339 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Fri, 17 Jun 2011 02:51:47 +0000 Subject: cpc925_edac: Support single-processor configurations If second CPU is not enabled, CPC925 EDAC driver will spill out warnings about errors on second Processor Interface. Support masking that out, by detecting at runtime which CPUs are present in device tree. Signed-off-by: Dmitry Eremin-Solenikov Cc: Harry Ciao Cc: Doug Thompson Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Benjamin Herrenschmidt --- drivers/edac/cpc925_edac.c | 67 +++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 64 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/edac/cpc925_edac.c b/drivers/edac/cpc925_edac.c index a687a0d16962..a774c0ddaf5b 100644 --- a/drivers/edac/cpc925_edac.c +++ b/drivers/edac/cpc925_edac.c @@ -90,6 +90,7 @@ enum apimask_bits { ECC_MASK_ENABLE = (APIMASK_ECC_UE_H | APIMASK_ECC_CE_H | APIMASK_ECC_UE_L | APIMASK_ECC_CE_L), }; +#define APIMASK_ADI(n) CPC925_BIT(((n)+1)) /************************************************************ * Processor Interface Exception Register (APIEXCP) @@ -581,16 +582,73 @@ static void cpc925_mc_check(struct mem_ctl_info *mci) } /******************** CPU err device********************************/ +static u32 cpc925_cpu_mask_disabled(void) +{ + struct device_node *cpus; + struct device_node *cpunode = NULL; + static u32 mask = 0; + + /* use cached value if available */ + if (mask != 0) + return mask; + + mask = APIMASK_ADI0 | APIMASK_ADI1; + + cpus = of_find_node_by_path("/cpus"); + if (cpus == NULL) { + cpc925_printk(KERN_DEBUG, "No /cpus node !\n"); + return 0; + } + + while ((cpunode = of_get_next_child(cpus, cpunode)) != NULL) { + const u32 *reg = of_get_property(cpunode, "reg", NULL); + + if (strcmp(cpunode->type, "cpu")) { + cpc925_printk(KERN_ERR, "Not a cpu node in /cpus: %s\n", cpunode->name); + continue; + } + + if (reg == NULL || *reg > 2) { + cpc925_printk(KERN_ERR, "Bad reg value at %s\n", cpunode->full_name); + continue; + } + + mask &= ~APIMASK_ADI(*reg); + } + + if (mask != (APIMASK_ADI0 | APIMASK_ADI1)) { + /* We assume that each CPU sits on it's own PI and that + * for present CPUs the reg property equals to the PI + * interface id */ + cpc925_printk(KERN_WARNING, + "Assuming PI id is equal to CPU MPIC id!\n"); + } + + of_node_put(cpunode); + of_node_put(cpus); + + return mask; +} + /* Enable CPU Errors detection */ static void cpc925_cpu_init(struct cpc925_dev_info *dev_info) { u32 apimask; + u32 cpumask; apimask = __raw_readl(dev_info->vbase + REG_APIMASK_OFFSET); - if ((apimask & CPU_MASK_ENABLE) == 0) { - apimask |= CPU_MASK_ENABLE; - __raw_writel(apimask, dev_info->vbase + REG_APIMASK_OFFSET); + + cpumask = cpc925_cpu_mask_disabled(); + if (apimask & cpumask) { + cpc925_printk(KERN_WARNING, "CPU(s) not present, " + "but enabled in APIMASK, disabling\n"); + apimask &= ~cpumask; } + + if ((apimask & CPU_MASK_ENABLE) == 0) + apimask |= CPU_MASK_ENABLE; + + __raw_writel(apimask, dev_info->vbase + REG_APIMASK_OFFSET); } /* Disable CPU Errors detection */ @@ -622,6 +680,9 @@ static void cpc925_cpu_check(struct edac_device_ctl_info *edac_dev) if ((apiexcp & CPU_EXCP_DETECTED) == 0) return; + if ((apiexcp & ~cpc925_cpu_mask_disabled()) == 0) + return; + apimask = __raw_readl(dev_info->vbase + REG_APIMASK_OFFSET); cpc925_printk(KERN_INFO, "Processor Interface Fault\n" "Processor Interface register dump:\n"); -- cgit v1.2.3 From 89de9f65429a97ab627310e2e85426dcbe423f39 Mon Sep 17 00:00:00 2001 From: Per Forlin Date: Mon, 29 Aug 2011 13:33:32 +0200 Subject: dmaengine/ste_dma40: add missing kernel doc for pending_queue Signed-off-by: Per Forlin Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/ste_dma40.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index cd3a7c726bf8..486b6c0b44e3 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -174,6 +174,7 @@ struct d40_base; * @tasklet: Tasklet that gets scheduled from interrupt context to complete a * transfer and call client callback. * @client: Cliented owned descriptor list. + * @pending_queue: Submitted jobs, to be issued by issue_pending() * @active: Active descriptor. * @queue: Queued jobs. * @dma_cfg: The client configuration of this dma channel. -- cgit v1.2.3 From 270e779036ff144d6c6904ce9480f0d70ff93e86 Mon Sep 17 00:00:00 2001 From: Per Forlin Date: Mon, 29 Aug 2011 13:33:33 +0200 Subject: dmaengine/ste_dma40: remove duplicate call to d40_pool_lli_free(). d40_desc_free() already calls d40_pool_lli_free(). Signed-off-by: Per Forlin Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/ste_dma40.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 486b6c0b44e3..37388d10497a 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -478,7 +478,6 @@ static struct d40_desc *d40_desc_get(struct d40_chan *d40c) list_for_each_entry_safe(d, _d, &d40c->client, node) if (async_tx_test_ack(&d->txd)) { - d40_pool_lli_free(d40c, d); d40_desc_remove(d); desc = d; memset(desc, 0, sizeof(*desc)); @@ -1209,7 +1208,6 @@ static void dma_tasklet(unsigned long data) if (!d40d->cyclic) { if (async_tx_test_ack(&d40d->txd)) { - d40_pool_lli_free(d40c, d40d); d40_desc_remove(d40d); d40_desc_free(d40c, d40d); } else { @@ -1606,7 +1604,6 @@ static int d40_free_dma(struct d40_chan *d40c) /* Release client owned descriptors */ if (!list_empty(&d40c->client)) list_for_each_entry_safe(d, _d, &d40c->client, node) { - d40_pool_lli_free(d40c, d); d40_desc_remove(d); d40_desc_free(d40c, d); } -- cgit v1.2.3 From 70a207ad4db2f0c60308b3f32086263c438c67a3 Mon Sep 17 00:00:00 2001 From: Per Forlin Date: Mon, 29 Aug 2011 13:33:34 +0200 Subject: dmaengine/ste_dma40: fix Oops due to double free of client descriptor The client list may exist in two lists at the same time. This makes free fail since the same desc is freed multiple times. Remove desc from client list when adding it to the pending queue. Move free of client owned descriptors from free_dma() to terminate_all(). Unable to handle kernel paging request at virtual address 00100104 pgd = dea8c000 [00100104] *pgd=1ea62831, *pte=00000000, *ppte=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP Modules linked in: CPU: 0 Not tainted (3.1.0-rc3+ #58) PC is at d40_free_chan_resources+0x64/0x330 Signed-off-by: Per Forlin Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/ste_dma40.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 37388d10497a..92ec0a26401a 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -644,8 +644,11 @@ static struct d40_desc *d40_first_active_get(struct d40_chan *d40c) return d; } +/* remove desc from current queue and add it to the pending_queue */ static void d40_desc_queue(struct d40_chan *d40c, struct d40_desc *desc) { + d40_desc_remove(desc); + desc->is_in_client_list = false; list_add_tail(&desc->node, &d40c->pending_queue); } @@ -803,6 +806,7 @@ done: static void d40_term_all(struct d40_chan *d40c) { struct d40_desc *d40d; + struct d40_desc *_d; /* Release active descriptors */ while ((d40d = d40_first_active_get(d40c))) { @@ -822,6 +826,14 @@ static void d40_term_all(struct d40_chan *d40c) d40_desc_free(d40c, d40d); } + /* Release client owned descriptors */ + if (!list_empty(&d40c->client)) + list_for_each_entry_safe(d40d, _d, &d40c->client, node) { + d40_desc_remove(d40d); + d40_desc_free(d40c, d40d); + } + + d40c->pending_tx = 0; d40c->busy = false; } @@ -1594,20 +1606,10 @@ static int d40_free_dma(struct d40_chan *d40c) u32 event; struct d40_phy_res *phy = d40c->phy_chan; bool is_src; - struct d40_desc *d; - struct d40_desc *_d; - /* Terminate all queued and active transfers */ d40_term_all(d40c); - /* Release client owned descriptors */ - if (!list_empty(&d40c->client)) - list_for_each_entry_safe(d, _d, &d40c->client, node) { - d40_desc_remove(d); - d40_desc_free(d40c, d); - } - if (phy == NULL) { chan_err(d40c, "phy == null\n"); return -EINVAL; -- cgit v1.2.3 From 503473ac2a3952e6af254b0769fe788a67d797e5 Mon Sep 17 00:00:00 2001 From: Per Forlin Date: Mon, 29 Aug 2011 13:33:35 +0200 Subject: dmaengine/ste_dma40: fix memory leak due to prepared descriptors Prepared descriptors that are not submitted will not be freed. Add prepared descriptor to a list to be able to release them upon dmaengine_terminate_all(). Signed-off-by: Per Forlin Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/ste_dma40.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 92ec0a26401a..467e4dcb20a0 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -177,6 +177,7 @@ struct d40_base; * @pending_queue: Submitted jobs, to be issued by issue_pending() * @active: Active descriptor. * @queue: Queued jobs. + * @prepare_queue: Prepared jobs. * @dma_cfg: The client configuration of this dma channel. * @configured: whether the dma_cfg configuration is valid * @base: Pointer to the device instance struct. @@ -204,6 +205,7 @@ struct d40_chan { struct list_head pending_queue; struct list_head active; struct list_head queue; + struct list_head prepare_queue; struct stedma40_chan_cfg dma_cfg; bool configured; struct d40_base *base; @@ -833,6 +835,13 @@ static void d40_term_all(struct d40_chan *d40c) d40_desc_free(d40c, d40d); } + /* Release descriptors in prepare queue */ + if (!list_empty(&d40c->prepare_queue)) + list_for_each_entry_safe(d40d, _d, + &d40c->prepare_queue, node) { + d40_desc_remove(d40d); + d40_desc_free(d40c, d40d); + } d40c->pending_tx = 0; d40c->busy = false; @@ -1911,6 +1920,12 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src, goto err; } + /* + * add descriptor to the prepare queue in order to be able + * to free them later in terminate_all + */ + list_add_tail(&desc->node, &chan->prepare_queue); + spin_unlock_irqrestore(&chan->lock, flags); return &desc->txd; @@ -2400,6 +2415,7 @@ static void __init d40_chan_init(struct d40_base *base, struct dma_device *dma, INIT_LIST_HEAD(&d40c->queue); INIT_LIST_HEAD(&d40c->pending_queue); INIT_LIST_HEAD(&d40c->client); + INIT_LIST_HEAD(&d40c->prepare_queue); tasklet_init(&d40c->tasklet, dma_tasklet, (unsigned long) d40c); -- cgit v1.2.3 From 7703eac96abd119dcfbb04f287a5127462d18269 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Wed, 31 Aug 2011 09:34:35 +0100 Subject: dmaengine: amba-pl08x: make filter check that the channel is owned by pl08x Before converting the dma channel to our private data structure, first check that the channel is indeed one which our driver registered. We do this by ensuring that the underlying device is bound to our driver. This avoids potential oopses if we try to reference 'plchan->name' against a foreign drivers dma channel. Signed-off-by: Russell King Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 3c2cad5b1165..cd8df7f5b5c8 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -87,6 +87,8 @@ #define DRIVER_NAME "pl08xdmac" +static struct amba_driver pl08x_amba_driver; + /** * struct vendor_data - vendor-specific config parameters for PL08x derivatives * @channels: the number of channels available in this variant @@ -1420,9 +1422,15 @@ static int pl08x_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, bool pl08x_filter_id(struct dma_chan *chan, void *chan_id) { - struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); + struct pl08x_dma_chan *plchan; char *name = chan_id; + /* Reject channels for devices not bound to this driver */ + if (chan->device->dev->driver != &pl08x_amba_driver.drv) + return false; + + plchan = to_pl08x_chan(chan); + /* Check that the channel is not taken! */ if (!strcmp(plchan->name, name)) return true; -- cgit v1.2.3 From a0dc552951dcbb2b28a8a2ffb5fa966613e8c025 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 31 May 2011 16:31:20 -0700 Subject: mtd: nand: remove NAND_BBT_SCANBYTE1AND6 option This patch reverts most of: commit 58373ff0afff4cc8ac40608872995f4d87eb72ec mtd: nand: more BB Detection refactoring and dynamic scan options According to the discussion at: http://lists.infradead.org/pipermail/linux-mtd/2011-May/035696.html the NAND_BBT_SCANBYTE1AND6 flag, although technically valid, can break some existing ECC layouts that use the 6th byte in the OOB for ECC data. Furthermore, we apparently do not need to scan both bytes 1 and 6 in the OOB region of the devices under consideration; instead, we only need to scan one or the other. Thus, the NAND_BBT_SCANBYTE1AND6 flag is at best unnecessary and at worst a regression. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 24 +++++------------------- drivers/mtd/nand/nand_bbt.c | 32 +------------------------------- 2 files changed, 6 insertions(+), 50 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index a46e9bb847bd..bb2e24b2d6c4 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -410,10 +410,11 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) else { nand_get_device(chip, mtd, FL_WRITING); - /* Write to first two pages and to byte 1 and 6 if necessary. - * If we write to more than one location, the first error - * encountered quits the procedure. We write two bytes per - * location, so we dont have to mess with 16 bit access. + /* + * Write to first two pages if necessary. If we write to more + * than one location, the first error encountered quits the + * procedure. We write two bytes per location, so we dont have + * to mess with 16 bit access. */ do { chip->ops.len = chip->ops.ooblen = 2; @@ -423,11 +424,6 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) ret = nand_do_write_oob(mtd, ofs, &chip->ops); - if (!ret && (chip->options & NAND_BBT_SCANBYTE1AND6)) { - chip->ops.ooboffs = NAND_SMALL_BADBLOCK_POS - & ~0x01; - ret = nand_do_write_oob(mtd, ofs, &chip->ops); - } i++; ofs += mtd->writesize; } while (!ret && (chip->options & NAND_BBT_SCAN2NDPAGE) && @@ -3131,16 +3127,6 @@ ident_done: *maf_id == NAND_MFR_MICRON)) chip->options |= NAND_BBT_SCAN2NDPAGE; - /* - * Numonyx/ST 2K pages, x8 bus use BOTH byte 1 and 6 - */ - if (!(busw & NAND_BUSWIDTH_16) && - *maf_id == NAND_MFR_STMICRO && - mtd->writesize == 2048) { - chip->options |= NAND_BBT_SCANBYTE1AND6; - chip->badblockpos = 0; - } - /* Check for AND chips with 4 page planes */ if (chip->options & NAND_4PAGE_ARRAY) chip->erase_cmd = multi_erase_cmd; diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index ccbeaa1e4a8e..5ffb9a4632ca 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -114,28 +114,6 @@ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_desc return -1; } - /* Check both positions 1 and 6 for pattern? */ - if (td->options & NAND_BBT_SCANBYTE1AND6) { - if (td->options & NAND_BBT_SCANEMPTY) { - p += td->len; - end += NAND_SMALL_BADBLOCK_POS - td->offs; - /* Check region between positions 1 and 6 */ - for (i = 0; i < NAND_SMALL_BADBLOCK_POS - td->offs - td->len; - i++) { - if (*p++ != 0xff) - return -1; - } - } - else { - p += NAND_SMALL_BADBLOCK_POS - td->offs; - } - /* Compare the pattern */ - for (i = 0; i < td->len; i++) { - if (p[i] != td->pattern[i]) - return -1; - } - } - if (td->options & NAND_BBT_SCANEMPTY) { p += td->len; end += td->len; @@ -167,13 +145,6 @@ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td) if (p[td->offs + i] != td->pattern[i]) return -1; } - /* Need to check location 1 AND 6? */ - if (td->options & NAND_BBT_SCANBYTE1AND6) { - for (i = 0; i < td->len; i++) { - if (p[NAND_SMALL_BADBLOCK_POS + i] != td->pattern[i]) - return -1; - } - } return 0; } @@ -1330,8 +1301,7 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = { .pattern = mirror_pattern }; -#define BBT_SCAN_OPTIONS (NAND_BBT_SCANLASTPAGE | NAND_BBT_SCAN2NDPAGE | \ - NAND_BBT_SCANBYTE1AND6) +#define BBT_SCAN_OPTIONS (NAND_BBT_SCANLASTPAGE | NAND_BBT_SCAN2NDPAGE) /** * nand_create_default_bbt_descr - [Internal] Creates a BBT descriptor structure * @this: NAND chip to create descriptor for -- cgit v1.2.3 From 5fb1549dfc40f3b589dae560ea21535cdc5f64e0 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 31 May 2011 16:31:21 -0700 Subject: mtd: nand: separate chip options / bbt_options This patch handles the problems we've been having with using conflicting flags from nand.h and bbm.h in the same nand_chip.options field. We should try to separate these two spaces a little more clearly, and so I have added a bbt_options field to nand_chip. Important notes about nand_chip fields: * bbt_options field should contain ONLY flags from bbm.h. They should be able to pass safely to a nand_bbt_descr data structure. - BBT option flags start with the "NAND_BBT_" prefix. * options field should contian ONLY flags from nand.h. Ideally, they should not be involved in any BBT related options. - NAND chip option flags start with the "NAND_" prefix. * Every flag should have a nice comment explaining what the flag is. While this is not yet the case on all existing flags, please be sure to write one for new flags. Even better, you can help document the code better yourself! Please try to follow these conventions to make everyone's lives easier. Among the flags that are being moved to the new bbt_options field throughout various drivers, etc. are: * NAND_BBT_SCANLASTPAGE * NAND_BBT_SCAN2NDPAGE and there will be more to come. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 10 +++++----- drivers/mtd/nand/nand_bbt.c | 5 ++--- 2 files changed, 7 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index bb2e24b2d6c4..3a9a8fc6a36c 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -344,7 +344,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) struct nand_chip *chip = mtd->priv; u16 bad; - if (chip->options & NAND_BBT_SCANLASTPAGE) + if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) ofs += mtd->erasesize - mtd->writesize; page = (int)(ofs >> chip->page_shift) & chip->pagemask; @@ -396,7 +396,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) uint8_t buf[2] = { 0, 0 }; int block, ret, i = 0; - if (chip->options & NAND_BBT_SCANLASTPAGE) + if (chip->bbt_options & NAND_BBT_SCANLASTPAGE) ofs += mtd->erasesize - mtd->writesize; /* Get block number */ @@ -426,7 +426,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) i++; ofs += mtd->writesize; - } while (!ret && (chip->options & NAND_BBT_SCAN2NDPAGE) && + } while (!ret && (chip->bbt_options & NAND_BBT_SCAN2NDPAGE) && i < 2); nand_release_device(mtd); @@ -3117,7 +3117,7 @@ ident_done: if ((chip->cellinfo & NAND_CI_CELLTYPE_MSK) && (*maf_id == NAND_MFR_SAMSUNG || *maf_id == NAND_MFR_HYNIX)) - chip->options |= NAND_BBT_SCANLASTPAGE; + chip->bbt_options |= NAND_BBT_SCANLASTPAGE; else if ((!(chip->cellinfo & NAND_CI_CELLTYPE_MSK) && (*maf_id == NAND_MFR_SAMSUNG || *maf_id == NAND_MFR_HYNIX || @@ -3125,7 +3125,7 @@ ident_done: *maf_id == NAND_MFR_AMD)) || (mtd->writesize == 2048 && *maf_id == NAND_MFR_MICRON)) - chip->options |= NAND_BBT_SCAN2NDPAGE; + chip->bbt_options |= NAND_BBT_SCAN2NDPAGE; /* Check for AND chips with 4 page planes */ if (chip->options & NAND_4PAGE_ARRAY) diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 5ffb9a4632ca..5df01d8efd92 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -517,7 +517,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, from = (loff_t)startblock << (this->bbt_erase_shift - 1); } - if (this->options & NAND_BBT_SCANLASTPAGE) + if (this->bbt_options & NAND_BBT_SCANLASTPAGE) from += mtd->erasesize - (mtd->writesize * len); for (i = startblock; i < numblocks;) { @@ -1301,7 +1301,6 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = { .pattern = mirror_pattern }; -#define BBT_SCAN_OPTIONS (NAND_BBT_SCANLASTPAGE | NAND_BBT_SCAN2NDPAGE) /** * nand_create_default_bbt_descr - [Internal] Creates a BBT descriptor structure * @this: NAND chip to create descriptor for @@ -1324,7 +1323,7 @@ static int nand_create_default_bbt_descr(struct nand_chip *this) printk(KERN_ERR "nand_create_default_bbt_descr: Out of memory\n"); return -ENOMEM; } - bd->options = this->options & BBT_SCAN_OPTIONS; + bd->options = this->bbt_options; bd->offs = this->badblockpos; bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1; bd->pattern = scan_ff_pattern; -- cgit v1.2.3 From a40f73419f02e40555f692785ea1c1813d5b4c12 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 31 May 2011 16:31:22 -0700 Subject: mtd: nand: consolidate redundant flash-based BBT flags This patch works with the following three flags from two headers (nand.h and bbm.h): (1) NAND_USE_FLASH_BBT (nand.h) (2) NAND_USE_FLASH_BBT_NO_OOB (nand.h) (3) NAND_BBT_NO_OOB (bbm.h) These flags are all related and interdependent, yet they were in different headers. Flag (2) is simply the combination of (1) and (3) and can be eliminated. This patch accomplishes the following: * eliminate NAND_USE_FLASH_BBT_NO_OOB (i.e., flag (2)) * move NAND_USE_FLASH_BBT (i.e., flag (1)) to bbm.h It's important to note that because (1) and (3) are now both found in bbm.h, they should NOT be used in the "nand_chip.options" field. I removed a small section from the mtdnand DocBook because it referes to NAND_USE_FLASH_BBT in nand.h, which has been moved to bbm.h. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 2 +- drivers/mtd/nand/autcpu12.c | 4 ++-- drivers/mtd/nand/bcm_umi_nand.c | 2 +- drivers/mtd/nand/cafe_nand.c | 3 ++- drivers/mtd/nand/cs553x_nand.c | 3 ++- drivers/mtd/nand/davinci_nand.c | 4 +++- drivers/mtd/nand/denali.c | 3 ++- drivers/mtd/nand/diskonchip.c | 2 +- drivers/mtd/nand/fsl_elbc_nand.c | 4 ++-- drivers/mtd/nand/mpc5121_nfc.c | 3 ++- drivers/mtd/nand/mxc_nand.c | 2 +- drivers/mtd/nand/nand_base.c | 2 +- drivers/mtd/nand/nand_bbt.c | 20 ++++++++++---------- drivers/mtd/nand/nandsim.c | 4 ++-- drivers/mtd/nand/pasemi_nand.c | 3 ++- drivers/mtd/nand/plat_nand.c | 1 + drivers/mtd/nand/s3c2410.c | 6 ++++-- 17 files changed, 39 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 55da20ccc7a8..78d551622e11 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -583,7 +583,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev) if (on_flash_bbt) { printk(KERN_INFO "atmel_nand: Use On Flash BBT\n"); - nand_chip->options |= NAND_USE_FLASH_BBT; + nand_chip->bbt_options |= NAND_USE_FLASH_BBT; } if (!cpu_has_dma()) diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c index eddc9a224985..adf934df8958 100644 --- a/drivers/mtd/nand/autcpu12.c +++ b/drivers/mtd/nand/autcpu12.c @@ -172,9 +172,9 @@ static int __init autcpu12_init(void) /* Enable the following for a flash based bad block table */ /* - this->options = NAND_USE_FLASH_BBT; + this->bbt_options = NAND_USE_FLASH_BBT; */ - this->options = NAND_USE_FLASH_BBT; + this->bbt_options = NAND_USE_FLASH_BBT; /* Scan to find existence of the device */ if (nand_scan(autcpu12_mtd, 1)) { diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c index 8c569e454dc5..974d9bc8e48e 100644 --- a/drivers/mtd/nand/bcm_umi_nand.c +++ b/drivers/mtd/nand/bcm_umi_nand.c @@ -474,7 +474,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) #if NAND_ECC_BCH if (board_mtd->writesize > 512) { - if (this->options & NAND_USE_FLASH_BBT) + if (this->bbt_options & NAND_USE_FLASH_BBT) largepage_bbt.options = NAND_BBT_SCAN2NDPAGE; this->badblock_pattern = &largepage_bbt; } diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 87ebb4e5b0c3..7dd7d844d2cf 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -686,7 +686,8 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev, cafe->nand.chip_delay = 0; /* Enable the following for a flash based bad block table */ - cafe->nand.options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR | NAND_OWN_BUFFERS; + cafe->nand.bbt_options = NAND_USE_FLASH_BBT; + cafe->nand.options = NAND_NO_AUTOINCR | NAND_OWN_BUFFERS; if (skipbbt) { cafe->nand.options |= NAND_SKIP_BBTSCAN; diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index f59ad1f2d5db..05adedd8c20c 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -239,7 +239,8 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr) this->ecc.correct = nand_correct_data; /* Enable the following for a flash based bad block table */ - this->options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR; + this->bbt_options = NAND_USE_FLASH_BBT; + this->options = NAND_NO_AUTOINCR; /* Scan to find existence of the device */ if (nand_scan(new_mtd, 1)) { diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 1f34951ae1a7..69f70195ff35 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -581,7 +581,9 @@ static int __init nand_davinci_probe(struct platform_device *pdev) info->chip.chip_delay = 0; info->chip.select_chip = nand_davinci_select_chip; - /* options such as NAND_USE_FLASH_BBT or 16-bit widths */ + /* options such as NAND_USE_FLASH_BBT */ + info->chip.bbt_options = pdata->bbt_options; + /* options such as 16-bit widths */ info->chip.options = pdata->options; info->chip.bbt_td = pdata->bbt_td; info->chip.bbt_md = pdata->bbt_md; diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index d5276218945f..dbb6fbae7d25 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1577,7 +1577,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) denali->nand.bbt_md = &bbt_mirror_descr; /* skip the scan for now until we have OOB read and write support */ - denali->nand.options |= NAND_USE_FLASH_BBT | NAND_SKIP_BBTSCAN; + denali->nand.bbt_options |= NAND_USE_FLASH_BBT; + denali->nand.options |= NAND_SKIP_BBTSCAN; denali->nand.ecc.mode = NAND_ECC_HW_SYNDROME; /* Denali Controller only support 15bit and 8bit ECC in MRST, diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 7837728d02ff..f70bc73e7948 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1652,7 +1652,7 @@ static int __init doc_probe(unsigned long physadr) nand->ecc.mode = NAND_ECC_HW_SYNDROME; nand->ecc.size = 512; nand->ecc.bytes = 6; - nand->options = NAND_USE_FLASH_BBT; + nand->bbt_options = NAND_USE_FLASH_BBT; doc->physadr = physadr; doc->virtadr = virtadr; diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 33d8aad8bba5..bff4791d73c3 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -791,8 +791,8 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) chip->bbt_md = &bbt_mirror_descr; /* set up nand options */ - chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR | - NAND_USE_FLASH_BBT; + chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR; + chip->bbt_options = NAND_USE_FLASH_BBT; chip->controller = &elbc_fcm_ctrl->controller; chip->priv = priv; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index eb1fbac63eb6..0ac64b54bd67 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -735,7 +735,8 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) chip->write_buf = mpc5121_nfc_write_buf; chip->verify_buf = mpc5121_nfc_verify_buf; chip->select_chip = mpc5121_nfc_select_chip; - chip->options = NAND_NO_AUTOINCR | NAND_USE_FLASH_BBT; + chip->options = NAND_NO_AUTOINCR; + chip->bbt_options = NAND_USE_FLASH_BBT; chip->ecc.mode = NAND_ECC_SOFT; /* Support external chip-select logic on ADS5121 board */ diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 90df34c4d26c..ed68fde3d1be 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1179,7 +1179,7 @@ static int __init mxcnd_probe(struct platform_device *pdev) this->bbt_td = &bbt_main_descr; this->bbt_md = &bbt_mirror_descr; /* update flash based bbt */ - this->options |= NAND_USE_FLASH_BBT; + this->bbt_options |= NAND_USE_FLASH_BBT; } init_completion(&host->op_completion); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 3a9a8fc6a36c..d39dffe71de4 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -405,7 +405,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1); /* Do we have a flash based bad block table ? */ - if (chip->options & NAND_USE_FLASH_BBT) + if (chip->bbt_options & NAND_USE_FLASH_BBT) ret = nand_update_bbt(mtd, ofs); else { nand_get_device(chip, mtd, FL_WRITING); diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 5df01d8efd92..66f93e2ac16b 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -36,9 +36,9 @@ * The table is marked in the OOB area with an ident pattern and a version * number which indicates which of both tables is more up to date. If the NAND * controller needs the complete OOB area for the ECC information then the - * option NAND_USE_FLASH_BBT_NO_OOB should be used: it moves the ident pattern - * and the version byte into the data area and the OOB area will remain - * untouched. + * option NAND_BBT_NO_OOB should be used (along with NAND_USE_FLASH_BBT, of + * course): it moves the ident pattern and the version byte into the data area + * and the OOB area will remain untouched. * * The table uses 2 bits per block * 11b: block is good @@ -1082,16 +1082,16 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd) pattern_len = bd->len; bits = bd->options & NAND_BBT_NRBITS_MSK; - BUG_ON((this->options & NAND_USE_FLASH_BBT_NO_OOB) && - !(this->options & NAND_USE_FLASH_BBT)); + BUG_ON((this->bbt_options & NAND_BBT_NO_OOB) && + !(this->bbt_options & NAND_USE_FLASH_BBT)); BUG_ON(!bits); if (bd->options & NAND_BBT_VERSION) pattern_len++; if (bd->options & NAND_BBT_NO_OOB) { - BUG_ON(!(this->options & NAND_USE_FLASH_BBT)); - BUG_ON(!(this->options & NAND_USE_FLASH_BBT_NO_OOB)); + BUG_ON(!(this->bbt_options & NAND_USE_FLASH_BBT)); + BUG_ON(!(this->bbt_options & NAND_BBT_NO_OOB)); BUG_ON(bd->offs); if (bd->options & NAND_BBT_VERSION) BUG_ON(bd->veroffs != bd->len); @@ -1357,15 +1357,15 @@ int nand_default_bbt(struct mtd_info *mtd) this->bbt_td = &bbt_main_descr; this->bbt_md = &bbt_mirror_descr; } - this->options |= NAND_USE_FLASH_BBT; + this->bbt_options |= NAND_USE_FLASH_BBT; return nand_scan_bbt(mtd, &agand_flashbased); } /* Is a flash based bad block table requested ? */ - if (this->options & NAND_USE_FLASH_BBT) { + if (this->bbt_options & NAND_USE_FLASH_BBT) { /* Use the default pattern descriptors */ if (!this->bbt_td) { - if (this->options & NAND_USE_FLASH_BBT_NO_OOB) { + if (this->bbt_options & NAND_BBT_NO_OOB) { this->bbt_td = &bbt_main_no_bbt_descr; this->bbt_md = &bbt_mirror_no_bbt_descr; } else { diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 357e8c5252a8..1856c42c62c4 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -2273,9 +2273,9 @@ static int __init ns_init_module(void) switch (bbt) { case 2: - chip->options |= NAND_USE_FLASH_BBT_NO_OOB; + chip->bbt_options |= NAND_BBT_NO_OOB; case 1: - chip->options |= NAND_USE_FLASH_BBT; + chip->bbt_options |= NAND_USE_FLASH_BBT; case 0: break; default: diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index b1aa41b8a4eb..1c17f091e16b 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -155,7 +155,8 @@ static int __devinit pasemi_nand_probe(struct platform_device *ofdev) chip->ecc.mode = NAND_ECC_SOFT; /* Enable the following for a flash based bad block table */ - chip->options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR; + chip->options = NAND_NO_AUTOINCR; + chip->bbt_options = NAND_USE_FLASH_BBT; /* Scan to find existence of the device */ if (nand_scan(pasemi_nand_mtd, 1)) { diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 633c04bf76f6..ccdb16ec8143 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -79,6 +79,7 @@ static int __devinit plat_nand_probe(struct platform_device *pdev) data->chip.read_buf = pdata->ctrl.read_buf; data->chip.chip_delay = pdata->chip.chip_delay; data->chip.options |= pdata->chip.options; + data->chip.bbt_options |= pdata->chip.bbt_options; data->chip.ecc.hwctl = pdata->ctrl.hwcontrol; data->chip.ecc.layout = pdata->chip.ecclayout; diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 4405468f196b..370516c3f7c7 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -880,8 +880,10 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, /* If you use u-boot BBT creation code, specifying this flag will * let the kernel fish out the BBT from the NAND, and also skip the * full NAND scan that can take 1/2s or so. Little things... */ - if (set->flash_bbt) - chip->options |= NAND_USE_FLASH_BBT | NAND_SKIP_BBTSCAN; + if (set->flash_bbt) { + chip->bbt_options |= NAND_USE_FLASH_BBT; + chip->options |= NAND_SKIP_BBTSCAN; + } } /** -- cgit v1.2.3 From bb9ebd4e714385a2592a482845865ef2d58b2868 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 31 May 2011 16:31:23 -0700 Subject: mtd: nand: rename NAND_USE_FLASH_BBT Recall the recently added prefix requirements: * "NAND_" for flags in nand.h, used in nand_chip.options * "NAND_BBT_" for flags in bbm.h, used in nand_chip.bbt_options or in nand_bbt_descr.options Thus, I am changing NAND_USE_FLASH_BBT to NAND_BBT_USE_FLASH. Again, this flag is found in bbm.h and so should NOT be used in the "nand_chip.options" field. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 2 +- drivers/mtd/nand/autcpu12.c | 4 ++-- drivers/mtd/nand/bcm_umi_nand.c | 2 +- drivers/mtd/nand/cafe_nand.c | 2 +- drivers/mtd/nand/cs553x_nand.c | 2 +- drivers/mtd/nand/davinci_nand.c | 2 +- drivers/mtd/nand/denali.c | 2 +- drivers/mtd/nand/diskonchip.c | 2 +- drivers/mtd/nand/fsl_elbc_nand.c | 2 +- drivers/mtd/nand/mpc5121_nfc.c | 2 +- drivers/mtd/nand/mxc_nand.c | 2 +- drivers/mtd/nand/nand_base.c | 2 +- drivers/mtd/nand/nand_bbt.c | 12 ++++++------ drivers/mtd/nand/nandsim.c | 2 +- drivers/mtd/nand/pasemi_nand.c | 2 +- drivers/mtd/nand/s3c2410.c | 2 +- 16 files changed, 22 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 78d551622e11..79a7ef276616 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -583,7 +583,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev) if (on_flash_bbt) { printk(KERN_INFO "atmel_nand: Use On Flash BBT\n"); - nand_chip->bbt_options |= NAND_USE_FLASH_BBT; + nand_chip->bbt_options |= NAND_BBT_USE_FLASH; } if (!cpu_has_dma()) diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c index adf934df8958..2e42ec2e8ff4 100644 --- a/drivers/mtd/nand/autcpu12.c +++ b/drivers/mtd/nand/autcpu12.c @@ -172,9 +172,9 @@ static int __init autcpu12_init(void) /* Enable the following for a flash based bad block table */ /* - this->bbt_options = NAND_USE_FLASH_BBT; + this->bbt_options = NAND_BBT_USE_FLASH; */ - this->bbt_options = NAND_USE_FLASH_BBT; + this->bbt_options = NAND_BBT_USE_FLASH; /* Scan to find existence of the device */ if (nand_scan(autcpu12_mtd, 1)) { diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c index 974d9bc8e48e..e3ffc4c908e4 100644 --- a/drivers/mtd/nand/bcm_umi_nand.c +++ b/drivers/mtd/nand/bcm_umi_nand.c @@ -474,7 +474,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) #if NAND_ECC_BCH if (board_mtd->writesize > 512) { - if (this->bbt_options & NAND_USE_FLASH_BBT) + if (this->bbt_options & NAND_BBT_USE_FLASH) largepage_bbt.options = NAND_BBT_SCAN2NDPAGE; this->badblock_pattern = &largepage_bbt; } diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 7dd7d844d2cf..d0eed498ed2b 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -686,7 +686,7 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev, cafe->nand.chip_delay = 0; /* Enable the following for a flash based bad block table */ - cafe->nand.bbt_options = NAND_USE_FLASH_BBT; + cafe->nand.bbt_options = NAND_BBT_USE_FLASH; cafe->nand.options = NAND_NO_AUTOINCR | NAND_OWN_BUFFERS; if (skipbbt) { diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index 05adedd8c20c..b35496143e74 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -239,7 +239,7 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr) this->ecc.correct = nand_correct_data; /* Enable the following for a flash based bad block table */ - this->bbt_options = NAND_USE_FLASH_BBT; + this->bbt_options = NAND_BBT_USE_FLASH; this->options = NAND_NO_AUTOINCR; /* Scan to find existence of the device */ diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 69f70195ff35..a4c82b4344ba 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -581,7 +581,7 @@ static int __init nand_davinci_probe(struct platform_device *pdev) info->chip.chip_delay = 0; info->chip.select_chip = nand_davinci_select_chip; - /* options such as NAND_USE_FLASH_BBT */ + /* options such as NAND_BBT_USE_FLASH */ info->chip.bbt_options = pdata->bbt_options; /* options such as 16-bit widths */ info->chip.options = pdata->options; diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index dbb6fbae7d25..ee3014505af2 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1577,7 +1577,7 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) denali->nand.bbt_md = &bbt_mirror_descr; /* skip the scan for now until we have OOB read and write support */ - denali->nand.bbt_options |= NAND_USE_FLASH_BBT; + denali->nand.bbt_options |= NAND_BBT_USE_FLASH; denali->nand.options |= NAND_SKIP_BBTSCAN; denali->nand.ecc.mode = NAND_ECC_HW_SYNDROME; diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index f70bc73e7948..b657d7f9b05c 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1652,7 +1652,7 @@ static int __init doc_probe(unsigned long physadr) nand->ecc.mode = NAND_ECC_HW_SYNDROME; nand->ecc.size = 512; nand->ecc.bytes = 6; - nand->bbt_options = NAND_USE_FLASH_BBT; + nand->bbt_options = NAND_BBT_USE_FLASH; doc->physadr = physadr; doc->virtadr = virtadr; diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index bff4791d73c3..d4ea5fe013b7 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -792,7 +792,7 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) /* set up nand options */ chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR; - chip->bbt_options = NAND_USE_FLASH_BBT; + chip->bbt_options = NAND_BBT_USE_FLASH; chip->controller = &elbc_fcm_ctrl->controller; chip->priv = priv; diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 0ac64b54bd67..2f2c35a7771e 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -736,7 +736,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) chip->verify_buf = mpc5121_nfc_verify_buf; chip->select_chip = mpc5121_nfc_select_chip; chip->options = NAND_NO_AUTOINCR; - chip->bbt_options = NAND_USE_FLASH_BBT; + chip->bbt_options = NAND_BBT_USE_FLASH; chip->ecc.mode = NAND_ECC_SOFT; /* Support external chip-select logic on ADS5121 board */ diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index ed68fde3d1be..ca42c8f335b3 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1179,7 +1179,7 @@ static int __init mxcnd_probe(struct platform_device *pdev) this->bbt_td = &bbt_main_descr; this->bbt_md = &bbt_mirror_descr; /* update flash based bbt */ - this->bbt_options |= NAND_USE_FLASH_BBT; + this->bbt_options |= NAND_BBT_USE_FLASH; } init_completion(&host->op_completion); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d39dffe71de4..422e7872d6db 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -405,7 +405,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1); /* Do we have a flash based bad block table ? */ - if (chip->bbt_options & NAND_USE_FLASH_BBT) + if (chip->bbt_options & NAND_BBT_USE_FLASH) ret = nand_update_bbt(mtd, ofs); else { nand_get_device(chip, mtd, FL_WRITING); diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 66f93e2ac16b..dfea9fd1d61c 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -14,7 +14,7 @@ * * When nand_scan_bbt is called, then it tries to find the bad block table * depending on the options in the BBT descriptor(s). If no flash based BBT - * (NAND_USE_FLASH_BBT) is specified then the device is scanned for factory + * (NAND_BBT_USE_FLASH) is specified then the device is scanned for factory * marked good / bad blocks. This information is used to create a memory BBT. * Once a new bad block is discovered then the "factory" information is updated * on the device. @@ -36,7 +36,7 @@ * The table is marked in the OOB area with an ident pattern and a version * number which indicates which of both tables is more up to date. If the NAND * controller needs the complete OOB area for the ECC information then the - * option NAND_BBT_NO_OOB should be used (along with NAND_USE_FLASH_BBT, of + * option NAND_BBT_NO_OOB should be used (along with NAND_BBT_USE_FLASH, of * course): it moves the ident pattern and the version byte into the data area * and the OOB area will remain untouched. * @@ -1083,14 +1083,14 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd) bits = bd->options & NAND_BBT_NRBITS_MSK; BUG_ON((this->bbt_options & NAND_BBT_NO_OOB) && - !(this->bbt_options & NAND_USE_FLASH_BBT)); + !(this->bbt_options & NAND_BBT_USE_FLASH)); BUG_ON(!bits); if (bd->options & NAND_BBT_VERSION) pattern_len++; if (bd->options & NAND_BBT_NO_OOB) { - BUG_ON(!(this->bbt_options & NAND_USE_FLASH_BBT)); + BUG_ON(!(this->bbt_options & NAND_BBT_USE_FLASH)); BUG_ON(!(this->bbt_options & NAND_BBT_NO_OOB)); BUG_ON(bd->offs); if (bd->options & NAND_BBT_VERSION) @@ -1357,12 +1357,12 @@ int nand_default_bbt(struct mtd_info *mtd) this->bbt_td = &bbt_main_descr; this->bbt_md = &bbt_mirror_descr; } - this->bbt_options |= NAND_USE_FLASH_BBT; + this->bbt_options |= NAND_BBT_USE_FLASH; return nand_scan_bbt(mtd, &agand_flashbased); } /* Is a flash based bad block table requested ? */ - if (this->bbt_options & NAND_USE_FLASH_BBT) { + if (this->bbt_options & NAND_BBT_USE_FLASH) { /* Use the default pattern descriptors */ if (!this->bbt_td) { if (this->bbt_options & NAND_BBT_NO_OOB) { diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 1856c42c62c4..34c03be77301 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -2275,7 +2275,7 @@ static int __init ns_init_module(void) case 2: chip->bbt_options |= NAND_BBT_NO_OOB; case 1: - chip->bbt_options |= NAND_USE_FLASH_BBT; + chip->bbt_options |= NAND_BBT_USE_FLASH; case 0: break; default: diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index 1c17f091e16b..a97264ececdb 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -156,7 +156,7 @@ static int __devinit pasemi_nand_probe(struct platform_device *ofdev) /* Enable the following for a flash based bad block table */ chip->options = NAND_NO_AUTOINCR; - chip->bbt_options = NAND_USE_FLASH_BBT; + chip->bbt_options = NAND_BBT_USE_FLASH; /* Scan to find existence of the device */ if (nand_scan(pasemi_nand_mtd, 1)) { diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 370516c3f7c7..ec280798e221 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -881,7 +881,7 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info, * let the kernel fish out the BBT from the NAND, and also skip the * full NAND scan that can take 1/2s or so. Little things... */ if (set->flash_bbt) { - chip->bbt_options |= NAND_USE_FLASH_BBT; + chip->bbt_options |= NAND_BBT_USE_FLASH; chip->options |= NAND_SKIP_BBTSCAN; } } -- cgit v1.2.3 From b8f80684054ec8a3bcdf35dc9c76ddf629a36482 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 31 May 2011 16:31:24 -0700 Subject: mtd: nand: move NAND_CREATE_EMPTY_BBT flag The NAND_CREATE_EMPTY_BBT flag was added by commit: 453281a973c10bce941b240d1c654d536623b16b mtd: nand: introduce NAND_CREATE_EMPTY_BBT This flag is not used within the kernel and not explained well, so I took the liberty to edit its comments. Also, this is a BBT-related flag (and closely tied with NAND_BBT_CREATE) so I'm moving it to bbm.h next to NAND_BBT_CREATE, thus requiring that we use the flag in nand_chip.bbt_options, *not* in nand_chip.options. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index dfea9fd1d61c..2e4e25996f03 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -970,7 +970,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc continue; /* Create the table in memory by scanning the chip(s) */ - if (!(this->options & NAND_CREATE_EMPTY_BBT)) + if (!(this->bbt_options & NAND_CREATE_EMPTY_BBT)) create_bbt(mtd, buf, bd, chipsel); td->version[i] = 1; -- cgit v1.2.3 From 53d5d8885089b8abeb487392311ed18f897deb93 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 31 May 2011 16:31:25 -0700 Subject: mtd: nand: rename CREATE_EMPTY bbt flag with proper prefix According to our new prefix rules, we should rename NAND_CREATE_EMPTY_BBT with a NAND_BBT prefix, i.e., NAND_BBT_CREATE_EMPTY. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 2e4e25996f03..9af703def4aa 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -970,7 +970,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc continue; /* Create the table in memory by scanning the chip(s) */ - if (!(this->bbt_options & NAND_CREATE_EMPTY_BBT)) + if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY)) create_bbt(mtd, buf, bd, chipsel); td->version[i] = 1; -- cgit v1.2.3 From 1754aab9bb869c173aa03b57587256827250e488 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 17:49:22 +0400 Subject: mtd: ATMEL, AVR32: inline nand partition table access Currently atmel_nand driver used by AT91 and AVR32 calls a special callback which return nand partition table and number of partitions. However in all boards this callback returns just static data. So drop this callback and make atmel_nand use partition table provided statically via platform_data. Nicolas Ferre: I am in favor for a mainline inclusion through linux-mtd tree. Hans-Christian Egtvedt: I'm fine by sending the changes for AVR32 through linux-mtd Signed-off-by: Dmitry Eremin-Solenikov Acked-by: Hans-Christian Egtvedt Acked-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 79a7ef276616..01fb5f0adcf0 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -660,9 +660,10 @@ static int __init atmel_nand_probe(struct platform_device *pdev) num_partitions = parse_mtd_partitions(mtd, part_probes, &partitions, 0); #endif - if (num_partitions <= 0 && host->board->partition_info) - partitions = host->board->partition_info(mtd->size, - &num_partitions); + if (num_partitions <= 0 && host->board->parts) { + partitions = host->board->parts; + num_partitions = host->board->num_parts; + } if ((!partitions) || (num_partitions == 0)) { printk(KERN_ERR "atmel_nand: No partitions defined, or unsupported device.\n"); -- cgit v1.2.3 From d3f2ed520b51f06d4f3c8c96bd4ba6e7e57643a3 Mon Sep 17 00:00:00 2001 From: Jiri Pinkava Date: Wed, 1 Jun 2011 15:56:40 +0200 Subject: mtd: nand: remove meaningless delay from nand_unlock This delay is meaningless. If delay is needed it is device specific and must be reimplemented by specific driver, otherwise no delay is needed. Signed-off-by: Jiri Pinkava Acked-by: Vimal Singh Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 422e7872d6db..e57ea8322812 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -915,7 +915,6 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs, /* Call wait ready function */ status = chip->waitfunc(mtd, chip); - udelay(1000); /* See if device thinks it succeeded */ if (status & 0x01) { DEBUG(MTD_DEBUG_LEVEL0, "%s: Error status = 0x%08x\n", @@ -1024,7 +1023,6 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) /* Call wait ready function */ status = chip->waitfunc(mtd, chip); - udelay(1000); /* See if device thinks it succeeded */ if (status & 0x01) { DEBUG(MTD_DEBUG_LEVEL0, "%s: Error status = 0x%08x\n", -- cgit v1.2.3 From 06947494bea31e536eba1d5c7d95791a9d2b5a99 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 15:54:08 +0400 Subject: mtd: drop ceiva map driver It's a Ceiva/Polaroid PhotoMax Digital Picture Frame. Support for it was commited before 2.6.12-rc2, current git contains no functional changes since it's start. Driver containing MTD support for that board was broken for some time already. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/Kconfig | 8 -- drivers/mtd/maps/Makefile | 1 - drivers/mtd/maps/ceiva.c | 341 ---------------------------------------------- 3 files changed, 350 deletions(-) delete mode 100644 drivers/mtd/maps/ceiva.c (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index c0c328c5b133..11cc2307c2ca 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -412,14 +412,6 @@ config MTD_IMPA7 This enables access to the NOR Flash on the impA7 board of implementa GmbH. If you have such a board, say 'Y' here. -config MTD_CEIVA - tristate "JEDEC Flash device mapped on Ceiva/Polaroid PhotoMax Digital Picture Frame" - depends on MTD_JEDECPROBE && ARCH_CEIVA - help - This enables access to the flash chips on the Ceiva/Polaroid - PhotoMax Digital Picture Frame. - If you have such a device, say 'Y'. - config MTD_H720X tristate "Hynix evaluation board mappings" depends on MTD_CFI && ( ARCH_H7201 || ARCH_H7202 ) diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index cb48b11affff..d6379fea42b8 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -19,7 +19,6 @@ obj-$(CONFIG_MTD_CK804XROM) += ck804xrom.o obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o obj-$(CONFIG_MTD_PXA2XX) += pxa2xx-flash.o obj-$(CONFIG_MTD_MBX860) += mbx860.o -obj-$(CONFIG_MTD_CEIVA) += ceiva.o obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o obj-$(CONFIG_MTD_PHYSMAP) += physmap.o obj-$(CONFIG_MTD_PHYSMAP_OF) += physmap_of.o diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c deleted file mode 100644 index 06f9c9815720..000000000000 --- a/drivers/mtd/maps/ceiva.c +++ /dev/null @@ -1,341 +0,0 @@ -/* - * Ceiva flash memory driver. - * Copyright (C) 2002 Rob Scott - * - * Note: this driver supports jedec compatible devices. Modification - * for CFI compatible devices should be straight forward: change - * jedec_probe to cfi_probe. - * - * Based on: sa1100-flash.c, which has the following copyright: - * Flash memory access on SA11x0 based devices - * - * (C) 2000 Nicolas Pitre - * - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -#include -#include -#include -#include - -/* - * This isn't complete yet, so... - */ -#define CONFIG_MTD_CEIVA_STATICMAP - -#ifdef CONFIG_MTD_CEIVA_STATICMAP -/* - * See include/linux/mtd/partitions.h for definition of the mtd_partition - * structure. - * - * Please note: - * 1. The flash size given should be the largest flash size that can - * be accommodated. - * - * 2. The bus width must defined in clps_setup_flash. - * - * The MTD layer will detect flash chip aliasing and reduce the size of - * the map accordingly. - * - */ - -#ifdef CONFIG_ARCH_CEIVA -/* Flash / Partition sizing */ -/* For the 28F8003, we use the block mapping to calcuate the sizes */ -#define MAX_SIZE_KiB (16 + 8 + 8 + 96 + (7*128)) -#define BOOT_PARTITION_SIZE_KiB (16) -#define PARAMS_PARTITION_SIZE_KiB (8) -#define KERNEL_PARTITION_SIZE_KiB (4*128) -/* Use both remaining portion of first flash, and all of second flash */ -#define ROOT_PARTITION_SIZE_KiB (3*128) + (8*128) - -static struct mtd_partition ceiva_partitions[] = { - { - .name = "Ceiva BOOT partition", - .size = BOOT_PARTITION_SIZE_KiB*1024, - .offset = 0, - - },{ - .name = "Ceiva parameters partition", - .size = PARAMS_PARTITION_SIZE_KiB*1024, - .offset = (16 + 8) * 1024, - },{ - .name = "Ceiva kernel partition", - .size = (KERNEL_PARTITION_SIZE_KiB)*1024, - .offset = 0x20000, - - },{ - .name = "Ceiva root filesystem partition", - .offset = MTDPART_OFS_APPEND, - .size = (ROOT_PARTITION_SIZE_KiB)*1024, - } -}; -#endif - -static int __init clps_static_partitions(struct mtd_partition **parts) -{ - int nb_parts = 0; - -#ifdef CONFIG_ARCH_CEIVA - if (machine_is_ceiva()) { - *parts = ceiva_partitions; - nb_parts = ARRAY_SIZE(ceiva_partitions); - } -#endif - return nb_parts; -} -#endif - -struct clps_info { - unsigned long base; - unsigned long size; - int width; - void *vbase; - struct map_info *map; - struct mtd_info *mtd; - struct resource *res; -}; - -#define NR_SUBMTD 4 - -static struct clps_info info[NR_SUBMTD]; - -static int __init clps_setup_mtd(struct clps_info *clps, int nr, struct mtd_info **rmtd) -{ - struct mtd_info *subdev[nr]; - struct map_info *maps; - int i, found = 0, ret = 0; - - /* - * Allocate the map_info structs in one go. - */ - maps = kzalloc(sizeof(struct map_info) * nr, GFP_KERNEL); - if (!maps) - return -ENOMEM; - /* - * Claim and then map the memory regions. - */ - for (i = 0; i < nr; i++) { - if (clps[i].base == (unsigned long)-1) - break; - - clps[i].res = request_mem_region(clps[i].base, clps[i].size, "clps flash"); - if (!clps[i].res) { - ret = -EBUSY; - break; - } - - clps[i].map = maps + i; - - clps[i].map->name = "clps flash"; - clps[i].map->phys = clps[i].base; - - clps[i].vbase = ioremap(clps[i].base, clps[i].size); - if (!clps[i].vbase) { - ret = -ENOMEM; - break; - } - - clps[i].map->virt = (void __iomem *)clps[i].vbase; - clps[i].map->bankwidth = clps[i].width; - clps[i].map->size = clps[i].size; - - simple_map_init(&clps[i].map); - - clps[i].mtd = do_map_probe("jedec_probe", clps[i].map); - if (clps[i].mtd == NULL) { - ret = -ENXIO; - break; - } - clps[i].mtd->owner = THIS_MODULE; - subdev[i] = clps[i].mtd; - - printk(KERN_INFO "clps flash: JEDEC device at 0x%08lx, %dMiB, " - "%d-bit\n", clps[i].base, clps[i].mtd->size >> 20, - clps[i].width * 8); - found += 1; - } - - /* - * ENXIO is special. It means we didn't find a chip when - * we probed. We need to tear down the mapping, free the - * resource and mark it as such. - */ - if (ret == -ENXIO) { - iounmap(clps[i].vbase); - clps[i].vbase = NULL; - release_resource(clps[i].res); - clps[i].res = NULL; - } - - /* - * If we found one device, don't bother with concat support. - * If we found multiple devices, use concat if we have it - * available, otherwise fail. - */ - if (ret == 0 || ret == -ENXIO) { - if (found == 1) { - *rmtd = subdev[0]; - ret = 0; - } else if (found > 1) { - /* - * We detected multiple devices. Concatenate - * them together. - */ - *rmtd = mtd_concat_create(subdev, found, - "clps flash"); - if (*rmtd == NULL) - ret = -ENXIO; - } - } - - /* - * If we failed, clean up. - */ - if (ret) { - do { - if (clps[i].mtd) - map_destroy(clps[i].mtd); - if (clps[i].vbase) - iounmap(clps[i].vbase); - if (clps[i].res) - release_resource(clps[i].res); - } while (i--); - - kfree(maps); - } - - return ret; -} - -static void __exit clps_destroy_mtd(struct clps_info *clps, struct mtd_info *mtd) -{ - int i; - - mtd_device_unregister(mtd); - - if (mtd != clps[0].mtd) - mtd_concat_destroy(mtd); - - for (i = NR_SUBMTD; i >= 0; i--) { - if (clps[i].mtd) - map_destroy(clps[i].mtd); - if (clps[i].vbase) - iounmap(clps[i].vbase); - if (clps[i].res) - release_resource(clps[i].res); - } - kfree(clps[0].map); -} - -/* - * We define the memory space, size, and width for the flash memory - * space here. - */ - -static int __init clps_setup_flash(void) -{ - int nr = 0; - -#ifdef CONFIG_ARCH_CEIVA - if (machine_is_ceiva()) { - info[0].base = CS0_PHYS_BASE; - info[0].size = SZ_32M; - info[0].width = CEIVA_FLASH_WIDTH; - info[1].base = CS1_PHYS_BASE; - info[1].size = SZ_32M; - info[1].width = CEIVA_FLASH_WIDTH; - nr = 2; - } -#endif - return nr; -} - -static struct mtd_partition *parsed_parts; -static const char *probes[] = { "cmdlinepart", "RedBoot", NULL }; - -static void __init clps_locate_partitions(struct mtd_info *mtd) -{ - const char *part_type = NULL; - int nr_parts = 0; - do { - /* - * Partition selection stuff. - */ - nr_parts = parse_mtd_partitions(mtd, probes, &parsed_parts, 0); - if (nr_parts > 0) { - part_type = "command line"; - break; - } -#ifdef CONFIG_MTD_CEIVA_STATICMAP - nr_parts = clps_static_partitions(&parsed_parts); - if (nr_parts > 0) { - part_type = "static"; - break; - } - printk("found: %d partitions\n", nr_parts); -#endif - } while (0); - - if (nr_parts == 0) { - printk(KERN_NOTICE "clps flash: no partition info " - "available, registering whole flash\n"); - mtd_device_register(mtd, NULL, 0); - } else { - printk(KERN_NOTICE "clps flash: using %s partition " - "definition\n", part_type); - mtd_device_register(mtd, parsed_parts, nr_parts); - } - - /* Always succeeds. */ -} - -static void __exit clps_destroy_partitions(void) -{ - kfree(parsed_parts); -} - -static struct mtd_info *mymtd; - -static int __init clps_mtd_init(void) -{ - int ret; - int nr; - - nr = clps_setup_flash(); - if (nr < 0) - return nr; - - ret = clps_setup_mtd(info, nr, &mymtd); - if (ret) - return ret; - - clps_locate_partitions(mymtd); - - return 0; -} - -static void __exit clps_mtd_cleanup(void) -{ - clps_destroy_mtd(info, mymtd); - clps_destroy_partitions(); -} - -module_init(clps_mtd_init); -module_exit(clps_mtd_cleanup); - -MODULE_AUTHOR("Rob Scott"); -MODULE_DESCRIPTION("Cirrus Logic JEDEC map driver"); -MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 13e0fe49f676607688da7475c33540ec5dac53b5 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:51:14 +0400 Subject: mtd: drop physmap_configure physmap_configure() and physmap_set_partitions() have no users in kernel. Out of kernel users should have been converted to regular platform device long ago. Drop support for this obsolete API. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/Kconfig | 6 ------ drivers/mtd/maps/physmap.c | 15 --------------- 2 files changed, 21 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 11cc2307c2ca..46eca3b3bcb0 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -41,8 +41,6 @@ config MTD_PHYSMAP_START are mapped on your particular target board. Refer to the memory map which should hopefully be in the documentation for your board. - Ignore this option if you use run-time physmap configuration - (i.e., run-time calling physmap_configure()). config MTD_PHYSMAP_LEN hex "Physical length of flash mapping" @@ -55,8 +53,6 @@ config MTD_PHYSMAP_LEN than the total amount of flash present. Refer to the memory map which should hopefully be in the documentation for your board. - Ignore this option if you use run-time physmap configuration - (i.e., run-time calling physmap_configure()). config MTD_PHYSMAP_BANKWIDTH int "Bank width in octets" @@ -67,8 +63,6 @@ config MTD_PHYSMAP_BANKWIDTH in octets. For example, if you have a data bus width of 32 bits, you would set the bus width octet value to 4. This is used internally by the CFI drivers. - Ignore this option if you use run-time physmap configuration - (i.e., run-time calling physmap_configure()). config MTD_PHYSMAP_OF tristate "Flash device in physical memory map based on OF description" diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index f64cee4a3bfb..2174d103297e 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -245,21 +245,6 @@ static struct platform_device physmap_flash = { .num_resources = 1, .resource = &physmap_flash_resource, }; - -void physmap_configure(unsigned long addr, unsigned long size, - int bankwidth, void (*set_vpp)(struct map_info *, int)) -{ - physmap_flash_resource.start = addr; - physmap_flash_resource.end = addr + size - 1; - physmap_flash_data.width = bankwidth; - physmap_flash_data.set_vpp = set_vpp; -} - -void physmap_set_partitions(struct mtd_partition *parts, int num_parts) -{ - physmap_flash_data.nr_parts = num_parts; - physmap_flash_data.parts = parts; -} #endif static int __init physmap_init(void) -- cgit v1.2.3 From 2e7485f49984ad9cea2d039acfd0554217710cce Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:51:15 +0400 Subject: mtd: cafe_nand: drop reference to CONFIG_MTD_CMDLINE_PARTS There is no need to guard mtd->name with CONFIG_MTD_CMDLINE_PARTS as name can be used by other parts. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cafe_nand.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index d0eed498ed2b..88ac4b598abc 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -803,9 +803,7 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev, /* We register the whole device first, separate from the partitions */ mtd_device_register(mtd, NULL, 0); -#ifdef CONFIG_MTD_CMDLINE_PARTS mtd->name = "cafe_nand"; -#endif nr_parts = parse_mtd_partitions(mtd, part_probes, &parts, 0); if (nr_parts > 0) { cafe->parts = parts; -- cgit v1.2.3 From 5c4eefbd5bb82a525ce5340cc8a91ab6dffeb490 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:51:16 +0400 Subject: mtd: mtdpart: default to cmdlinepart, NULL partitions probing Lots of MTD devices default to cmdlinepart, NULL as partition parsing order. Make it a default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdpart.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 630be3e7da04..3477e16be1c8 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -712,12 +712,17 @@ int deregister_mtd_parser(struct mtd_part_parser *p) } EXPORT_SYMBOL_GPL(deregister_mtd_parser); +static const char *default_mtd_part_types[] = {"cmdlinepart", NULL}; + int parse_mtd_partitions(struct mtd_info *master, const char **types, struct mtd_partition **pparts, unsigned long origin) { struct mtd_part_parser *parser; int ret = 0; + if (!types) + types = default_mtd_part_types; + for ( ; ret <= 0 && *types; types++) { parser = get_partition_parser(*types); if (!parser && !request_module("%s", *types)) -- cgit v1.2.3 From 4d1220f6fa03f60a3d3995683911d29ae9c317f7 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:51:17 +0400 Subject: mtd: m25p80 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 35180e475c4c..70d5fcacc3fd 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -968,13 +968,7 @@ static int __devinit m25p_probe(struct spi_device *spi) /* partitions should match sector boundaries; and it may be good to * use readonly partitions for writeprotected sectors (BP2..BP0). */ - if (mtd_has_cmdlinepart()) { - static const char *part_probes[] - = { "cmdlinepart", NULL, }; - - nr_parts = parse_mtd_partitions(&flash->mtd, - part_probes, &parts, 0); - } + nr_parts = parse_mtd_partitions(&flash->mtd, NULL, &parts, 0); if (nr_parts <= 0 && data && data->parts) { parts = data->parts; -- cgit v1.2.3 From 5507766b639e53b9230484588eba8b4e18d0563b Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 2 Jun 2011 11:38:26 -0700 Subject: mtd: nand: remove unnecessary TODO I believe this TODO was unnecessary back when it was introduced: commit d1e1f4e42b5df063712ca2926e50c07b95c96b96 mtd: nand: add support for reading ONFI parameters... Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index e57ea8322812..1380bf6c44c7 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3135,7 +3135,6 @@ ident_done: if (mtd->writesize > 512 && chip->cmdfunc == nand_command) chip->cmdfunc = nand_command_lp; - /* TODO onfi flash name */ printk(KERN_INFO "NAND device: Manufacturer ID:" " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, *dev_id, nand_manuf_ids[maf_idx].name, -- cgit v1.2.3 From b07948251f563379885ac92412fb3885c976e423 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 09:12:15 +0800 Subject: mtd: denali: remove calling mtd_device_unregister() after nand_release() The implementation of nand_release() already call mtd_device_unregister(), no need to call it again. Signed-off-by: Axel Lin Acked-by: Jamie Iles Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/denali.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index ee3014505af2..eebdfb5148e6 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1677,7 +1677,6 @@ static void denali_pci_remove(struct pci_dev *dev) struct denali_nand_info *denali = pci_get_drvdata(dev); nand_release(&denali->mtd); - mtd_device_unregister(&denali->mtd); denali_irq_cleanup(dev->irq, denali); -- cgit v1.2.3 From 43c6871cae298e28700ca1ea76dc94b5f69446bc Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 09:51:53 +0800 Subject: mtd: nuc900_nand: add missing nand_release in nuc900_nand_remove Signed-off-by: Axel Lin Acked-by: Wan ZongShun Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nuc900_nand.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 9c30a0b03171..fa8faedfad6e 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -339,6 +339,7 @@ static int __devexit nuc900_nand_remove(struct platform_device *pdev) struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev); struct resource *res; + nand_release(&nuc900_nand->mtd); iounmap(nuc900_nand->reg); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -- cgit v1.2.3 From d80932b2dc497faa27e415c12f56f6ae1d087204 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 09:53:26 +0800 Subject: mtd: nomadik_nand: add missing nand_release in nomadik_nand_remove Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nomadik_nand.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c index b6a5c86ab31e..b463ecfb4c1a 100644 --- a/drivers/mtd/nand/nomadik_nand.c +++ b/drivers/mtd/nand/nomadik_nand.c @@ -187,6 +187,7 @@ static int nomadik_nand_remove(struct platform_device *pdev) pdata->exit(); if (host) { + nand_release(&host->mtd); iounmap(host->cmd_va); iounmap(host->data_va); iounmap(host->addr_va); -- cgit v1.2.3 From 1a3591920e5100ba112a19e10a09ce7a5da1ab23 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 13:14:10 +0800 Subject: mtd: pxa3xx_nand: fix a memory leak In pxa3xx_nand_remove, we should call nand_release instead of mtd_device_unregister to properly free bad block table memory and bad block descriptor memory. Signed-off-by: Axel Lin Acked-by: Lei Wen Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 1fb3b3a80581..f7040ea8dd4b 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1119,7 +1119,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) clk_put(info->clk); if (mtd) { - mtd_device_unregister(mtd); + nand_release(mtd); kfree(mtd); } return 0; -- cgit v1.2.3 From 82e023ab4e144da7f83fe7e6c93a09be2f30ff07 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 13:15:30 +0800 Subject: mtd: fsmc_nand: fix a memory leak In fsmc_nand_remove, we should call nand_release instead of mtd_device_unregister to properly free bad block table memory and bad block descriptor memory. Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsmc_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index e9b275ac381c..8a5f1aa2b286 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -822,7 +822,7 @@ static int fsmc_nand_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); if (host) { - mtd_device_unregister(&host->mtd); + nand_release(&host->mtd); clk_disable(host->clk); clk_put(host->clk); -- cgit v1.2.3 From 7578ca927b1a2a0445c9a3166d05462b9ffd4c06 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 14:10:22 +0800 Subject: mtd: mtdblock: Use DEFINE_MUTEX() for mtdblks_lock mtdblks_lock can be initialized automatically with DEFINE_MUTEX() rather than explicitly calling mutex_init(). Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdblock.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index 3326615ad66b..1976b6c0508d 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -44,7 +44,7 @@ struct mtdblk_dev { enum { STATE_EMPTY, STATE_CLEAN, STATE_DIRTY } cache_state; }; -static struct mutex mtdblks_lock; +static DEFINE_MUTEX(mtdblks_lock); /* * Cache stuff... @@ -389,8 +389,6 @@ static struct mtd_blktrans_ops mtdblock_tr = { static int __init init_mtdblock(void) { - mutex_init(&mtdblks_lock); - return register_mtd_blktrans(&mtdblock_tr); } -- cgit v1.2.3 From 1676bc18c6648c378029dad365756e12be7da025 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 3 Jun 2011 15:34:33 +0800 Subject: mtd: pxa3xx_nand: remove unused variable 'mtd' Remove unused variable 'mtd' to eliminate below warning. CC drivers/mtd/nand/pxa3xx_nand.o drivers/mtd/nand/pxa3xx_nand.c: In function 'pxa3xx_nand_suspend': drivers/mtd/nand/pxa3xx_nand.c:1167: warning: unused variable 'mtd' drivers/mtd/nand/pxa3xx_nand.c: In function 'pxa3xx_nand_resume': drivers/mtd/nand/pxa3xx_nand.c:1180: warning: unused variable 'mtd' Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index f7040ea8dd4b..e11f926c9335 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1164,7 +1164,6 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); - struct mtd_info *mtd = info->mtd; if (info->state) { dev_err(&pdev->dev, "driver busy, state = %d\n", info->state); @@ -1177,7 +1176,6 @@ static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) static int pxa3xx_nand_resume(struct platform_device *pdev) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); - struct mtd_info *mtd = info->mtd; nand_writel(info, NDTR0CS0, info->ndtr0cs0); nand_writel(info, NDTR1CS0, info->ndtr1cs0); -- cgit v1.2.3 From 1fc468d5d55a0d9101e482ccb96b1b2879a73882 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:42 +0400 Subject: mtd: mtd_dataflash don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/mtd_dataflash.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 13749d458a31..4d4a9cd10c33 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -677,12 +677,7 @@ add_dataflash_otp(struct spi_device *spi, char *name, pagesize, otp_tag); dev_set_drvdata(&spi->dev, priv); - if (mtd_has_cmdlinepart()) { - static const char *part_probes[] = { "cmdlinepart", NULL, }; - - nr_parts = parse_mtd_partitions(device, part_probes, &parts, - 0); - } + nr_parts = parse_mtd_partitions(device, NULL, &parts, 0); if (nr_parts <= 0 && pdata && pdata->parts) { parts = pdata->parts; -- cgit v1.2.3 From adaf2a5d0887f9a317eca8550e59b0c92876c64f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:43 +0400 Subject: mtd: sst25l don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/sst25l.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index 83e80c65d6e7..52eb92edde93 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -423,13 +423,7 @@ static int __devinit sst25l_probe(struct spi_device *spi) flash->mtd.numeraseregions); - if (mtd_has_cmdlinepart()) { - static const char *part_probes[] = {"cmdlinepart", NULL}; - - nr_parts = parse_mtd_partitions(&flash->mtd, - part_probes, - &parts, 0); - } + nr_parts = parse_mtd_partitions(&flash->mtd, NULL, &parts, 0); if (nr_parts <= 0 && data && data->parts) { parts = data->parts; -- cgit v1.2.3 From 3af035c96ac72d2d301f04ad7f253e342a7dc54b Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:44 +0400 Subject: mtd: h720x-flash don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/h720x-flash.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c index 7f035860a36b..f331a2c94271 100644 --- a/drivers/mtd/maps/h720x-flash.c +++ b/drivers/mtd/maps/h720x-flash.c @@ -60,8 +60,6 @@ static struct mtd_partition h720x_partitions[] = { static int nr_mtd_parts; static struct mtd_partition *mtd_parts; -static const char *probes[] = { "cmdlinepart", NULL }; - /* * Initialize FLASH support */ @@ -92,7 +90,7 @@ static int __init h720x_mtd_init(void) if (mymtd) { mymtd->owner = THIS_MODULE; - nr_mtd_parts = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0); + nr_mtd_parts = parse_mtd_partitions(mymtd, NULL, &mtd_parts, 0); if (nr_mtd_parts > 0) part_type = "command line"; if (nr_mtd_parts <= 0) { -- cgit v1.2.3 From cec25c7290d1b9d514686be97e9e62c89dd3308f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:45 +0400 Subject: mtd: impa7 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/impa7.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c index 404a50cbafa0..2d45a489622e 100644 --- a/drivers/mtd/maps/impa7.c +++ b/drivers/mtd/maps/impa7.c @@ -61,7 +61,6 @@ static struct mtd_partition static_partitions[] = static int mtd_parts_nb[NUM_FLASHBANKS]; static struct mtd_partition *mtd_parts[NUM_FLASHBANKS]; -static const char *probes[] = { "cmdlinepart", NULL }; static int __init init_impa7(void) { @@ -98,7 +97,7 @@ static int __init init_impa7(void) impa7_mtd[i]->owner = THIS_MODULE; devicesfound++; mtd_parts_nb[i] = parse_mtd_partitions(impa7_mtd[i], - probes, + NULL, &mtd_parts[i], 0); if (mtd_parts_nb[i] > 0) { -- cgit v1.2.3 From 8d130a74e40da7dc4c572fbf0ba533fac17f4190 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:46 +0400 Subject: mtd: intel_vr_nor don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/intel_vr_nor.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c index d2f47be8754b..fd612c7ec1f6 100644 --- a/drivers/mtd/maps/intel_vr_nor.c +++ b/drivers/mtd/maps/intel_vr_nor.c @@ -72,11 +72,10 @@ static void __devexit vr_nor_destroy_partitions(struct vr_nor_mtd *p) static int __devinit vr_nor_init_partitions(struct vr_nor_mtd *p) { struct mtd_partition *parts; - static const char *part_probes[] = { "cmdlinepart", NULL }; /* register the flash bank */ /* partition the flash bank */ - p->nr_parts = parse_mtd_partitions(p->info, part_probes, &parts, 0); + p->nr_parts = parse_mtd_partitions(p->info, NULL, &parts, 0); return mtd_device_register(p->info, parts, p->nr_parts); } -- cgit v1.2.3 From 2ef3855a91300bc0dae0ddc8689e4ee64abe6a8a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:47 +0400 Subject: mtd: rbtx4939-flash don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/rbtx4939-flash.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/rbtx4939-flash.c b/drivers/mtd/maps/rbtx4939-flash.c index 761fb459d2c7..5d15b6b32265 100644 --- a/drivers/mtd/maps/rbtx4939-flash.c +++ b/drivers/mtd/maps/rbtx4939-flash.c @@ -50,7 +50,6 @@ static int rbtx4939_flash_remove(struct platform_device *dev) } static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL }; -static const char *part_probe_types[] = { "cmdlinepart", NULL }; static int rbtx4939_flash_probe(struct platform_device *dev) { @@ -107,9 +106,7 @@ static int rbtx4939_flash_probe(struct platform_device *dev) info->mtd->owner = THIS_MODULE; if (err) goto err_out; - - err = parse_mtd_partitions(info->mtd, part_probe_types, - &info->parts, 0); + err = parse_mtd_partitions(info->mtd, NULL, &info->parts, 0); if (err > 0) { mtd_device_register(info->mtd, info->parts, err); info->nr_parts = err; -- cgit v1.2.3 From 2108c3bc632962422b7929e715ed6bbb837ac25c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:48 +0400 Subject: mtd: atmel_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 01fb5f0adcf0..47ece8e06e17 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -481,10 +481,6 @@ static void atmel_nand_hwctl(struct mtd_info *mtd, int mode) } } -#ifdef CONFIG_MTD_CMDLINE_PARTS -static const char *part_probes[] = { "cmdlinepart", NULL }; -#endif - /* * Probe for the NAND device. */ @@ -655,11 +651,8 @@ static int __init atmel_nand_probe(struct platform_device *pdev) goto err_scan_tail; } -#ifdef CONFIG_MTD_CMDLINE_PARTS mtd->name = "atmel_nand"; - num_partitions = parse_mtd_partitions(mtd, part_probes, - &partitions, 0); -#endif + num_partitions = parse_mtd_partitions(mtd, NULL, &partitions, 0); if (num_partitions <= 0 && host->board->parts) { partitions = host->board->parts; num_partitions = host->board->num_parts; -- cgit v1.2.3 From caf32f4e8ca84ed1b0570176770f7209e7c304fe Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:49 +0400 Subject: mtd: bcm_umi_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm_umi_nand.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c index e3ffc4c908e4..b1b7b16a843b 100644 --- a/drivers/mtd/nand/bcm_umi_nand.c +++ b/drivers/mtd/nand/bcm_umi_nand.c @@ -52,8 +52,6 @@ static const __devinitconst char gBanner[] = KERN_INFO \ "BCM UMI MTD NAND Driver: 1.00\n"; -const char *part_probes[] = { "cmdlinepart", NULL }; - #if NAND_ECC_BCH static uint8_t scan_ff_pattern[] = { 0xff }; @@ -496,9 +494,8 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) struct mtd_partition *partition_info; board_mtd->name = "bcm_umi-nand"; - nr_partitions = - parse_mtd_partitions(board_mtd, part_probes, - &partition_info, 0); + nr_partitions = parse_mtd_partitions(board_mtd, NULL, + &partition_info, 0); if (nr_partitions <= 0) { printk(KERN_ERR "BCM UMI NAND: Too few partitions - %d\n", -- cgit v1.2.3 From 00205e831326f7fc22888de152b313c89a43a110 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:52 +0400 Subject: mtd: cmx270_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cmx270_nand.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index 6fc043a30d1e..f8f5b7c0daf5 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -50,8 +50,6 @@ static struct mtd_partition partition_info[] = { }; #define NUM_PARTITIONS (ARRAY_SIZE(partition_info)) -const char *part_probes[] = { "cmdlinepart", NULL }; - static u_char cmx270_read_byte(struct mtd_info *mtd) { struct nand_chip *this = mtd->priv; @@ -222,14 +220,13 @@ static int __init cmx270_init(void) goto err_scan; } -#ifdef CONFIG_MTD_CMDLINE_PARTS - mtd_parts_nb = parse_mtd_partitions(cmx270_nand_mtd, part_probes, + mtd_parts_nb = parse_mtd_partitions(cmx270_nand_mtd, NULL, &mtd_parts, 0); if (mtd_parts_nb > 0) part_type = "command line"; else mtd_parts_nb = 0; -#endif + if (!mtd_parts_nb) { mtd_parts = partition_info; mtd_parts_nb = NUM_PARTITIONS; -- cgit v1.2.3 From 5987d3f45a3819985eb8f34203a5ca2604f08c06 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:53 +0400 Subject: mtd: cs553x_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cs553x_nand.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index b35496143e74..b2bdf72a9f19 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -278,8 +278,6 @@ static int is_geode(void) return 0; } -static const char *part_probes[] = { "cmdlinepart", NULL }; - static int __init cs553x_init(void) { int err = -ENXIO; @@ -318,9 +316,7 @@ static int __init cs553x_init(void) if (cs553x_mtd[i]) { /* If any devices registered, return success. Else the last error. */ - mtd_parts_nb = parse_mtd_partitions(cs553x_mtd[i], part_probes, &mtd_parts, 0); - if (mtd_parts_nb > 0) - printk(KERN_NOTICE "Using command line partition definition\n"); + mtd_parts_nb = parse_mtd_partitions(cs553x_mtd[i], NULL, &mtd_parts, 0); mtd_device_register(cs553x_mtd[i], mtd_parts, mtd_parts_nb); err = 0; -- cgit v1.2.3 From 4e243a04c39b009e42ff4a4682ed47b850997dc1 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:54 +0400 Subject: mtd: davinci_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/davinci_nand.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index a4c82b4344ba..0c582ed98e43 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -753,14 +753,7 @@ syndrome_done: if (ret < 0) goto err_scan; - if (mtd_has_cmdlinepart()) { - static const char *probes[] __initconst = { - "cmdlinepart", NULL - }; - - mtd_parts_nb = parse_mtd_partitions(&info->mtd, probes, - &mtd_parts, 0); - } + mtd_parts_nb = parse_mtd_partitions(&info->mtd, NULL, &mtd_parts, 0); if (mtd_parts_nb <= 0) { mtd_parts = pdata->parts; -- cgit v1.2.3 From 495e2f41c38c99b2785cd3d99b24b080b20e8eb4 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:55 +0400 Subject: mtd: edb7312 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/edb7312.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index 8400d0f6dada..2f9374b38b90 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -98,8 +98,6 @@ static int ep7312_device_ready(struct mtd_info *mtd) return 1; } -const char *part_probes[] = { "cmdlinepart", NULL }; - /* * Main initialization routine */ @@ -158,7 +156,7 @@ static int __init ep7312_init(void) return -ENXIO; } ep7312_mtd->name = "edb7312-nand"; - mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, part_probes, &mtd_parts, 0); + mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, NULL, &mtd_parts, 0); if (mtd_parts_nb > 0) part_type = "command line"; else -- cgit v1.2.3 From a8e083246387ffb9a84551fa908a358cacdc2b0c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:56 +0400 Subject: mtd: fsl_upm don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_upm.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index 23752fd5bc59..7c782ebd0f31 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -158,7 +158,6 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun, { int ret; struct device_node *flash_np; - static const char *part_types[] = { "cmdlinepart", NULL, }; fun->chip.IO_ADDR_R = fun->io_base; fun->chip.IO_ADDR_W = fun->io_base; @@ -192,7 +191,7 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun, if (ret) goto err; - ret = parse_mtd_partitions(&fun->mtd, part_types, &fun->parts, 0); + ret = parse_mtd_partitions(&fun->mtd, NULL, &fun->parts, 0); #ifdef CONFIG_MTD_OF_PARTS if (ret == 0) { -- cgit v1.2.3 From 8d3f8bb8093080d4e2b1de096af444b694a16766 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:57 +0400 Subject: mtd: fsmc_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsmc_nand.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index 8a5f1aa2b286..a39c224eb12f 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -177,9 +177,6 @@ static struct mtd_partition partition_info_128KB_blk[] = { }, }; -#ifdef CONFIG_MTD_CMDLINE_PARTS -const char *part_probes[] = { "cmdlinepart", NULL }; -#endif /** * struct fsmc_nand_data - structure for FSMC NAND device state @@ -716,15 +713,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) * platform data, * default partition information present in driver. */ -#ifdef CONFIG_MTD_CMDLINE_PARTS /* - * Check if partition info passed via command line + * Check for partition info passed */ host->mtd.name = "nand"; - host->nr_partitions = parse_mtd_partitions(&host->mtd, part_probes, + host->nr_partitions = parse_mtd_partitions(&host->mtd, NULL, &host->partitions, 0); if (host->nr_partitions <= 0) { -#endif /* * Check if partition info passed via command line */ @@ -769,9 +764,7 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) } } } -#ifdef CONFIG_MTD_CMDLINE_PARTS } -#endif ret = mtd_device_register(&host->mtd, host->partitions, host->nr_partitions); -- cgit v1.2.3 From e411f52d591fff47a251a213e1f4115dfb356e8d Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:16:58 +0400 Subject: mtd: h1910 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/h1910.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c index 02a03e67109c..42f9177e36b1 100644 --- a/drivers/mtd/nand/h1910.c +++ b/drivers/mtd/nand/h1910.c @@ -136,14 +136,10 @@ static int __init h1910_init(void) iounmap((void *)nandaddr); return -ENXIO; } -#ifdef CONFIG_MTD_CMDLINE_PARTS - mtd_parts_nb = parse_cmdline_partitions(h1910_nand_mtd, &mtd_parts, "h1910-nand"); + mtd_parts_nb = parse_mtd_partitions(h1910_nand_mtd, NULL, &mtd_parts, 0); if (mtd_parts_nb > 0) part_type = "command line"; - else - mtd_parts_nb = 0; -#endif - if (mtd_parts_nb == 0) { + else { mtd_parts = partition_info; mtd_parts_nb = NUM_PARTITIONS; part_type = "static"; -- cgit v1.2.3 From bef06150b2c0607edbee8e8c5fd7e882a90a976a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:00 +0400 Subject: mtd: jz4740_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/jz4740_nand.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 6e813daed068..920719cbdb55 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -251,10 +251,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat, return 0; } -#ifdef CONFIG_MTD_CMDLINE_PARTS -static const char *part_probes[] = {"cmdline", NULL}; -#endif - static int jz_nand_ioremap_resource(struct platform_device *pdev, const char *name, struct resource **res, void __iomem **base) { @@ -373,10 +369,7 @@ static int __devinit jz_nand_probe(struct platform_device *pdev) goto err_gpio_free; } -#ifdef CONFIG_MTD_CMDLINE_PARTS - num_partitions = parse_mtd_partitions(mtd, part_probes, - &partition_info, 0); -#endif + num_partitions = parse_mtd_partitions(mtd, NULL, &partition_info, 0); if (num_partitions <= 0 && pdata) { num_partitions = pdata->num_partitions; partition_info = pdata->partitions; -- cgit v1.2.3 From 0455dfd4c8614ae971202697f6db4d239e0b44c3 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:25:00 +0400 Subject: mtd: lantiq-flash don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tewaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/lantiq-flash.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index a90cabd7b84d..57ea3fe2296f 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -107,8 +107,6 @@ ltq_copy_to(struct map_info *map, unsigned long to, spin_unlock_irqrestore(&ebu_lock, flags); } -static const char const *part_probe_types[] = { "cmdlinepart", NULL }; - static int __init ltq_mtd_probe(struct platform_device *pdev) { @@ -172,8 +170,7 @@ ltq_mtd_probe(struct platform_device *pdev) cfi->addr_unlock1 ^= 1; cfi->addr_unlock2 ^= 1; - nr_parts = parse_mtd_partitions(ltq_mtd->mtd, - part_probe_types, &parts, 0); + nr_parts = parse_mtd_partitions(ltq_mtd->mtd, NULL, &parts, 0); if (nr_parts > 0) { dev_info(&pdev->dev, "using %d partitions from cmdline", nr_parts); -- cgit v1.2.3 From ac9b0f3662f523e6aeb7669b40269ecbd2fd752b Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:25:01 +0400 Subject: mtd: latch-addr-flash don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/latch-addr-flash.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c index 5936c466e901..09cf704ea02e 100644 --- a/drivers/mtd/maps/latch-addr-flash.c +++ b/drivers/mtd/maps/latch-addr-flash.c @@ -97,8 +97,6 @@ static void lf_copy_from(struct map_info *map, void *to, static char *rom_probe_types[] = { "cfi_probe", NULL }; -static char *part_probe_types[] = { "cmdlinepart", NULL }; - static int latch_addr_flash_remove(struct platform_device *dev) { struct latch_addr_flash_info *info; @@ -206,8 +204,7 @@ static int __devinit latch_addr_flash_probe(struct platform_device *dev) } info->mtd->owner = THIS_MODULE; - err = parse_mtd_partitions(info->mtd, (const char **)part_probe_types, - &info->parts, 0); + err = parse_mtd_partitions(info->mtd, NULL, &info->parts, 0); if (err > 0) { mtd_device_register(info->mtd, info->parts, err); return 0; -- cgit v1.2.3 From 5279fe36fa4c5e3f33b25111c1cbf08386e78d06 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:01 +0400 Subject: mtd: mpc5121_nfc don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mpc5121_nfc.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 2f2c35a7771e..30f78ea8e993 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -131,8 +131,6 @@ struct mpc5121_nfc_prv { static void mpc5121_nfc_done(struct mtd_info *mtd); -static const char *mpc5121_nfc_pprobes[] = { "cmdlinepart", NULL }; - /* Read NFC register */ static inline u16 nfc_read(struct mtd_info *mtd, uint reg) { @@ -838,7 +836,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) dev_set_drvdata(dev, mtd); /* Register device in MTD */ - retval = parse_mtd_partitions(mtd, mpc5121_nfc_pprobes, &parts, 0); + retval = parse_mtd_partitions(mtd, NULL, &parts, 0); #ifdef CONFIG_MTD_OF_PARTS if (retval == 0) retval = of_mtd_parse_partitions(dev, dn, &parts); -- cgit v1.2.3 From 2aedf3e982c1b0177710c87e2f199624d07abc8e Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:02 +0400 Subject: mtd: ndfc don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/ndfc.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index ea2dea8a9c88..cb66fd79f1fa 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -159,11 +159,6 @@ static int ndfc_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len) static int ndfc_chip_init(struct ndfc_controller *ndfc, struct device_node *node) { -#ifdef CONFIG_MTD_CMDLINE_PARTS - static const char *part_types[] = { "cmdlinepart", NULL }; -#else - static const char *part_types[] = { NULL }; -#endif struct device_node *flash_np; struct nand_chip *chip = &ndfc->chip; int ret; @@ -204,7 +199,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, if (ret) goto err; - ret = parse_mtd_partitions(&ndfc->mtd, part_types, &ndfc->parts, 0); + ret = parse_mtd_partitions(&ndfc->mtd, NULL, &ndfc->parts, 0); if (ret < 0) goto err; -- cgit v1.2.3 From f397d8c074c966f61b12c4c554e0aa32704056c7 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:03 +0400 Subject: mtd: omap2 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/omap2.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 0db2c0e7656a..8783c0800b5e 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -94,8 +94,6 @@ #define P4e_s(a) (TF(a & NAND_Ecc_P4e) << 0) #define P4o_s(a) (TF(a & NAND_Ecc_P4o) << 1) -static const char *part_probes[] = { "cmdlinepart", NULL }; - /* oob info generated runtime depending on ecc algorithm and layout selected */ static struct nand_ecclayout omap_oobinfo; /* Define some generic bad / good block scan pattern which are used @@ -1103,7 +1101,7 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) goto out_release_mem_region; } - err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); + err = parse_mtd_partitions(&info->mtd, NULL, &info->parts, 0); if (err > 0) mtd_device_register(&info->mtd, info->parts, err); else if (pdata->parts) -- cgit v1.2.3 From 4ac6b3ef7191c508a356c205b02ab82f5e228d0c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:04 +0400 Subject: mtd: orion_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/orion_nand.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 7794d0680f91..5c55981df3da 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -21,8 +21,6 @@ #include #include -static const char *part_probes[] = { "cmdlinepart", NULL }; - static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl) { struct nand_chip *nc = mtd->priv; @@ -132,10 +130,8 @@ static int __init orion_nand_probe(struct platform_device *pdev) goto no_dev; } -#ifdef CONFIG_MTD_CMDLINE_PARTS mtd->name = "orion_nand"; - num_part = parse_mtd_partitions(mtd, part_probes, &partitions, 0); -#endif + num_part = parse_mtd_partitions(mtd, NULL, &partitions, 0); /* If cmdline partitions have been passed, let them be used */ if (num_part <= 0) { num_part = board->nr_parts; -- cgit v1.2.3 From 16b206e62f9b43ba864571a6808844aaddea7479 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:05 +0400 Subject: mtd: ppchameleonevb don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/ppchameleonevb.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index 3bbb796b451c..93766336ab79 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -99,8 +99,6 @@ static struct mtd_partition partition_info_evb[] = { #define NUM_PARTITIONS 1 -extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, const char *mtd_id); - /* * hardware specific access to control-lines */ @@ -187,9 +185,6 @@ static int ppchameleonevb_device_ready(struct mtd_info *minfo) } #endif -const char *part_probes[] = { "cmdlinepart", NULL }; -const char *part_probes_evb[] = { "cmdlinepart", NULL }; - /* * Main initialization routine */ @@ -281,7 +276,7 @@ static int __init ppchameleonevb_init(void) #endif ppchameleon_mtd->name = "ppchameleon-nand"; - mtd_parts_nb = parse_mtd_partitions(ppchameleon_mtd, part_probes, &mtd_parts, 0); + mtd_parts_nb = parse_mtd_partitions(ppchameleon_mtd, NULL, &mtd_parts, 0); if (mtd_parts_nb > 0) part_type = "command line"; else @@ -382,7 +377,7 @@ static int __init ppchameleonevb_init(void) } ppchameleonevb_mtd->name = NAND_EVB_MTD_NAME; - mtd_parts_nb = parse_mtd_partitions(ppchameleonevb_mtd, part_probes_evb, &mtd_parts, 0); + mtd_parts_nb = parse_mtd_partitions(ppchameleonevb_mtd, NULL, &mtd_parts, 0); if (mtd_parts_nb > 0) part_type = "command line"; else -- cgit v1.2.3 From c842f570a6e3ac002389ab7154084e32f4f5021a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:06 +0400 Subject: mtd: pxa3xx_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index e11f926c9335..c7da3c8be9d6 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1129,6 +1129,8 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) { struct pxa3xx_nand_platform_data *pdata; struct pxa3xx_nand_info *info; + struct mtd_partition *parts; + int nr_parts; pdata = pdev->dev.platform_data; if (!pdata) { @@ -1146,16 +1148,11 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) return -ENODEV; } - if (mtd_has_cmdlinepart()) { - const char *probes[] = { "cmdlinepart", NULL }; - struct mtd_partition *parts; - int nr_parts; - nr_parts = parse_mtd_partitions(info->mtd, probes, &parts, 0); + nr_parts = parse_mtd_partitions(info->mtd, NULL, &parts, 0); - if (nr_parts) - return mtd_device_register(info->mtd, parts, nr_parts); - } + if (nr_parts) + return mtd_device_register(info->mtd, parts, nr_parts); return mtd_device_register(info->mtd, pdata->parts, pdata->nr_parts); } -- cgit v1.2.3 From 5b2efbdf70c74dcab575103c547ae27a71daba4c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:07 +0400 Subject: mtd: s3c2410 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/s3c2410.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index ec280798e221..17954baf12cd 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -744,7 +744,6 @@ static int s3c24xx_nand_remove(struct platform_device *pdev) return 0; } -const char *part_probes[] = { "cmdlinepart", NULL }; static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, struct s3c2410_nand_mtd *mtd, struct s3c2410_nand_set *set) @@ -756,7 +755,7 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, return mtd_device_register(&mtd->mtd, NULL, 0); mtd->mtd.name = set->name; - nr_part = parse_mtd_partitions(&mtd->mtd, part_probes, &part_info, 0); + nr_part = parse_mtd_partitions(&mtd->mtd, NULL, &part_info, 0); if (nr_part <= 0 && set->nr_partitions > 0) { nr_part = set->nr_partitions; -- cgit v1.2.3 From a4c93614fded8ef0be90fca6a619d3c9c3e9552f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:08 +0400 Subject: mtd: sharpsl don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/sharpsl.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index 19e24ed089ea..b3377f88326e 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -103,8 +103,6 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, return readb(sharpsl->io + ECCCNTR) != 0; } -static const char *part_probes[] = { "cmdlinepart", NULL }; - /* * Main initialization routine */ @@ -184,7 +182,7 @@ static int __devinit sharpsl_nand_probe(struct platform_device *pdev) /* Register the partitions */ sharpsl->mtd.name = "sharpsl-nand"; - nr_partitions = parse_mtd_partitions(&sharpsl->mtd, part_probes, &sharpsl_partition_info, 0); + nr_partitions = parse_mtd_partitions(&sharpsl->mtd, NULL, &sharpsl_partition_info, 0); if (nr_partitions <= 0) { nr_partitions = data->nr_partitions; sharpsl_partition_info = data->partitions; -- cgit v1.2.3 From 7221eb1296b3ebb0038dabeb88fe17a4fc62e920 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:09 +0400 Subject: mtd: socrates_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/socrates_nand.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index ca2d0555729e..9023ac833fcf 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -155,8 +155,6 @@ static int socrates_nand_device_ready(struct mtd_info *mtd) return 1; } -static const char *part_probes[] = { "cmdlinepart", NULL }; - /* * Probe for the NAND device. */ @@ -225,14 +223,11 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev) goto out; } -#ifdef CONFIG_MTD_CMDLINE_PARTS - num_partitions = parse_mtd_partitions(mtd, part_probes, - &partitions, 0); + num_partitions = parse_mtd_partitions(mtd, NULL, &partitions, 0); if (num_partitions < 0) { res = num_partitions; goto release; } -#endif if (num_partitions == 0) { num_partitions = of_mtd_parse_partitions(&ofdev->dev, -- cgit v1.2.3 From d845c3eebc1efea59c74a63c028f36051a4d0d8f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:10 +0400 Subject: mtd: tmio_nand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/tmio_nand.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c index 11e8371b5683..b6ffad64cda5 100644 --- a/drivers/mtd/nand/tmio_nand.c +++ b/drivers/mtd/nand/tmio_nand.c @@ -121,9 +121,6 @@ struct tmio_nand { #define mtd_to_tmio(m) container_of(m, struct tmio_nand, mtd) -#ifdef CONFIG_MTD_CMDLINE_PARTS -static const char *part_probes[] = { "cmdlinepart", NULL }; -#endif /*--------------------------------------------------------------------------*/ @@ -461,9 +458,7 @@ static int tmio_probe(struct platform_device *dev) goto err_scan; } /* Register the partitions */ -#ifdef CONFIG_MTD_CMDLINE_PARTS - nbparts = parse_mtd_partitions(mtd, part_probes, &parts, 0); -#endif + nbparts = parse_mtd_partitions(mtd, NULL, &parts, 0); if (nbparts <= 0 && data) { parts = data->partition; nbparts = data->num_partitions; -- cgit v1.2.3 From abfc7d2b94e650c18965e62fe74e457b96b4865a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:11 +0400 Subject: mtd: txx9ndfmc don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/txx9ndfmc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index bfba4e39a6c5..91b05b9a9086 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -287,7 +287,6 @@ static int txx9ndfmc_nand_scan(struct mtd_info *mtd) static int __init txx9ndfmc_probe(struct platform_device *dev) { struct txx9ndfmc_platform_data *plat = dev->dev.platform_data; - static const char *probes[] = { "cmdlinepart", NULL }; int hold, spw; int i; struct txx9ndfmc_drvdata *drvdata; @@ -393,7 +392,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) } mtd->name = txx9_priv->mtdname; - nr_parts = parse_mtd_partitions(mtd, probes, + nr_parts = parse_mtd_partitions(mtd, NULL, &drvdata->parts[i], 0); mtd_device_register(mtd, drvdata->parts[i], nr_parts); drvdata->mtds[i] = mtd; -- cgit v1.2.3 From 3d4ae3b2eab1d95a944162b047533d74cfcb8def Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:12 +0400 Subject: mtd: onenand/generic don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/generic.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index 2d70d354d846..bca1c496135f 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -30,8 +30,6 @@ */ #define DRIVER_NAME "onenand-flash" -static const char *part_probes[] = { "cmdlinepart", NULL, }; - struct onenand_info { struct mtd_info mtd; struct mtd_partition *parts; @@ -73,7 +71,7 @@ static int __devinit generic_onenand_probe(struct platform_device *pdev) goto out_iounmap; } - err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0); + err = parse_mtd_partitions(&info->mtd, NULL, &info->parts, 0); if (err > 0) mtd_device_register(&info->mtd, info->parts, err); else if (err <= 0 && pdata && pdata->parts) -- cgit v1.2.3 From 70f438c61636a194d7c3fa341fa72353ba0090f6 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:13 +0400 Subject: mtd: onenand/omap2 don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/omap2.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 0d9073d4e417..5ca2053f6027 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -67,8 +67,6 @@ struct omap2_onenand { struct regulator *regulator; }; -static const char *part_probes[] = { "cmdlinepart", NULL, }; - static void omap2_onenand_dma_cb(int lch, u16 ch_status, void *data) { struct omap2_onenand *c = data; @@ -754,7 +752,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; - r = parse_mtd_partitions(&c->mtd, part_probes, &c->parts, 0); + r = parse_mtd_partitions(&c->mtd, NULL, &c->parts, 0); if (r > 0) r = mtd_device_register(&c->mtd, c->parts, r); else if (pdata->parts != NULL) -- cgit v1.2.3 From 18f8eb1b23619736872740f8c4697b6534a0524b Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 20:17:14 +0400 Subject: mtd: samsung/onenand don't specify default parsing options Since 'cmdline, NULL' is now a default for parse_mtd_partitions, don't specify this in every driver, instead pass NULL to force parse_mtd_partitions to use default. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/samsung.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c index 3306b5b3c736..78a08eae6adf 100644 --- a/drivers/mtd/onenand/samsung.c +++ b/drivers/mtd/onenand/samsung.c @@ -157,8 +157,6 @@ struct s3c_onenand { static struct s3c_onenand *onenand; -static const char *part_probes[] = { "cmdlinepart", NULL, }; - static inline int s3c_read_reg(int offset) { return readl(onenand->base + offset); @@ -1017,7 +1015,7 @@ static int s3c_onenand_probe(struct platform_device *pdev) if (s3c_read_reg(MEM_CFG_OFFSET) & ONENAND_SYS_CFG1_SYNC_READ) dev_info(&onenand->pdev->dev, "OneNAND Sync. Burst Read enabled\n"); - err = parse_mtd_partitions(mtd, part_probes, &onenand->parts, 0); + err = parse_mtd_partitions(mtd, NULL, &onenand->parts, 0); if (err > 0) mtd_device_register(mtd, onenand->parts, err); else if (err <= 0 && pdata && pdata->parts) -- cgit v1.2.3 From 8b6e50c9eba8bf44b2dfd931d359706a461d2cfd Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 25 May 2011 14:59:01 -0700 Subject: mtd: nand: multi-line comment style fixups Artem: while on it, do other commentaries clean-ups: 1. Start one-line comments with capital letter and no dot at the end 2. Turn sparse multi-line comments into one-line comments 3. Change "phrase ?" to "phrase?" and the same with "!". 4. Remove tabs from the kerneldoc parameters comments - they are mixed with tabs often, and inconsistent. 5. Put dot at the end of descriptions in kerneldoc comments. 6. Some other small commentaries clean-ups Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 703 +++++++++++++++++++++---------------------- drivers/mtd/nand/nand_bbt.c | 365 +++++++++++----------- 2 files changed, 521 insertions(+), 547 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1380bf6c44c7..1525cd01dacd 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -136,9 +136,9 @@ static int check_offs_len(struct mtd_info *mtd, /** * nand_release_device - [GENERIC] release chip - * @mtd: MTD device structure + * @mtd: MTD device structure * - * Deselect, release chip lock and wake up anyone waiting on the device + * Deselect, release chip lock and wake up anyone waiting on the device. */ static void nand_release_device(struct mtd_info *mtd) { @@ -157,9 +157,9 @@ static void nand_release_device(struct mtd_info *mtd) /** * nand_read_byte - [DEFAULT] read one byte from the chip - * @mtd: MTD device structure + * @mtd: MTD device structure * - * Default read function for 8bit buswith + * Default read function for 8bit buswith. */ static uint8_t nand_read_byte(struct mtd_info *mtd) { @@ -169,10 +169,9 @@ static uint8_t nand_read_byte(struct mtd_info *mtd) /** * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip - * @mtd: MTD device structure + * @mtd: MTD device structure * - * Default read function for 16bit buswith with - * endianess conversion + * Default read function for 16bit buswith with endianess conversion. */ static uint8_t nand_read_byte16(struct mtd_info *mtd) { @@ -182,10 +181,9 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd) /** * nand_read_word - [DEFAULT] read one word from the chip - * @mtd: MTD device structure + * @mtd: MTD device structure * - * Default read function for 16bit buswith without - * endianess conversion + * Default read function for 16bit buswith without endianess conversion. */ static u16 nand_read_word(struct mtd_info *mtd) { @@ -195,8 +193,8 @@ static u16 nand_read_word(struct mtd_info *mtd) /** * nand_select_chip - [DEFAULT] control CE line - * @mtd: MTD device structure - * @chipnr: chipnumber to select, -1 for deselect + * @mtd: MTD device structure + * @chipnr: chipnumber to select, -1 for deselect * * Default select function for 1 chip devices. */ @@ -218,11 +216,11 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr) /** * nand_write_buf - [DEFAULT] write buffer to chip - * @mtd: MTD device structure - * @buf: data buffer - * @len: number of bytes to write + * @mtd: MTD device structure + * @buf: data buffer + * @len: number of bytes to write * - * Default write function for 8bit buswith + * Default write function for 8bit buswith. */ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -235,11 +233,11 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) /** * nand_read_buf - [DEFAULT] read chip data into buffer - * @mtd: MTD device structure - * @buf: buffer to store date - * @len: number of bytes to read + * @mtd: MTD device structure + * @buf: buffer to store date + * @len: number of bytes to read * - * Default read function for 8bit buswith + * Default read function for 8bit buswith. */ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { @@ -252,11 +250,11 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) /** * nand_verify_buf - [DEFAULT] Verify chip data against buffer - * @mtd: MTD device structure - * @buf: buffer containing the data to compare - * @len: number of bytes to compare + * @mtd: MTD device structure + * @buf: buffer containing the data to compare + * @len: number of bytes to compare * - * Default verify function for 8bit buswith + * Default verify function for 8bit buswith. */ static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -271,11 +269,11 @@ static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len) /** * nand_write_buf16 - [DEFAULT] write buffer to chip - * @mtd: MTD device structure - * @buf: data buffer - * @len: number of bytes to write + * @mtd: MTD device structure + * @buf: data buffer + * @len: number of bytes to write * - * Default write function for 16bit buswith + * Default write function for 16bit buswith. */ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -291,11 +289,11 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) /** * nand_read_buf16 - [DEFAULT] read chip data into buffer - * @mtd: MTD device structure - * @buf: buffer to store date - * @len: number of bytes to read + * @mtd: MTD device structure + * @buf: buffer to store date + * @len: number of bytes to read * - * Default read function for 16bit buswith + * Default read function for 16bit buswith. */ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) { @@ -310,11 +308,11 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) /** * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer - * @mtd: MTD device structure - * @buf: buffer containing the data to compare - * @len: number of bytes to compare + * @mtd: MTD device structure + * @buf: buffer containing the data to compare + * @len: number of bytes to compare * - * Default verify function for 16bit buswith + * Default verify function for 16bit buswith. */ static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -332,9 +330,9 @@ static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) /** * nand_block_bad - [DEFAULT] Read bad block marker from the chip - * @mtd: MTD device structure - * @ofs: offset from device start - * @getchip: 0, if the chip is already selected + * @mtd: MTD device structure + * @ofs: offset from device start + * @getchip: 0, if the chip is already selected * * Check, if the block is bad. */ @@ -384,11 +382,11 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip) /** * nand_default_block_markbad - [DEFAULT] mark a block bad - * @mtd: MTD device structure - * @ofs: offset from device start + * @mtd: MTD device structure + * @ofs: offset from device start * - * This is the default implementation, which can be overridden by - * a hardware specific driver. + * This is the default implementation, which can be overridden by a hardware + * specific driver. */ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) { @@ -404,7 +402,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) if (chip->bbt) chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1); - /* Do we have a flash based bad block table ? */ + /* Do we have a flash based bad block table? */ if (chip->bbt_options & NAND_BBT_USE_FLASH) ret = nand_update_bbt(mtd, ofs); else { @@ -439,16 +437,16 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) /** * nand_check_wp - [GENERIC] check if the chip is write protected - * @mtd: MTD device structure - * Check, if the device is write protected + * @mtd: MTD device structure * - * The function expects, that the device is already selected + * Check, if the device is write protected. The function expects, that the + * device is already selected. */ static int nand_check_wp(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; - /* broken xD cards report WP despite being writable */ + /* Broken xD cards report WP despite being writable */ if (chip->options & NAND_BROKEN_XD) return 0; @@ -459,10 +457,10 @@ static int nand_check_wp(struct mtd_info *mtd) /** * nand_block_checkbad - [GENERIC] Check if a block is marked bad - * @mtd: MTD device structure - * @ofs: offset from device start - * @getchip: 0, if the chip is already selected - * @allowbbt: 1, if its allowed to access the bbt area + * @mtd: MTD device structure + * @ofs: offset from device start + * @getchip: 0, if the chip is already selected + * @allowbbt: 1, if its allowed to access the bbt area * * Check, if the block is bad. Either by reading the bad block table or * calling of the scan function. @@ -481,8 +479,8 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, /** * panic_nand_wait_ready - [GENERIC] Wait for the ready pin after commands. - * @mtd: MTD device structure - * @timeo: Timeout + * @mtd: MTD device structure + * @timeo: Timeout * * Helper function for nand_wait_ready used when needing to wait in interrupt * context. @@ -501,10 +499,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo) } } -/* - * Wait for the ready pin, after a command - * The timeout is catched later. - */ +/* Wait for the ready pin, after a command. The timeout is catched later */ void nand_wait_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; @@ -515,7 +510,7 @@ void nand_wait_ready(struct mtd_info *mtd) return panic_nand_wait_ready(mtd, 400); led_trigger_event(nand_led_trigger, LED_FULL); - /* wait until command is processed or timeout occures */ + /* Wait until command is processed or timeout occures */ do { if (chip->dev_ready(mtd)) break; @@ -527,13 +522,13 @@ EXPORT_SYMBOL_GPL(nand_wait_ready); /** * nand_command - [DEFAULT] Send command to NAND device - * @mtd: MTD device structure - * @command: the command to be sent - * @column: the column address for this command, -1 if none - * @page_addr: the page address for this command, -1 if none + * @mtd: MTD device structure + * @command: the command to be sent + * @column: the column address for this command, -1 if none + * @page_addr: the page address for this command, -1 if none * - * Send command to NAND device. This function is used for small page - * devices (256/512 Bytes per page) + * Send command to NAND device. This function is used for small page devices + * (256/512 Bytes per page). */ static void nand_command(struct mtd_info *mtd, unsigned int command, int column, int page_addr) @@ -541,9 +536,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, register struct nand_chip *chip = mtd->priv; int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE; - /* - * Write out the command to the device. - */ + /* Write out the command to the device */ if (command == NAND_CMD_SEQIN) { int readcmd; @@ -563,9 +556,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, } chip->cmd_ctrl(mtd, command, ctrl); - /* - * Address cycle, when necessary - */ + /* Address cycle, when necessary */ ctrl = NAND_CTRL_ALE | NAND_CTRL_CHANGE; /* Serially input address */ if (column != -1) { @@ -586,8 +577,8 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE); /* - * program and erase have their own busy handlers - * status and sequential in needs no delay + * Program and erase have their own busy handlers status and sequential + * in needs no delay */ switch (command) { @@ -621,8 +612,10 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, return; } } - /* Apply this short delay always to ensure that we do wait tWB in - * any case on any machine. */ + /* + * Apply this short delay always to ensure that we do wait tWB in + * any case on any machine. + */ ndelay(100); nand_wait_ready(mtd); @@ -630,10 +623,10 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, /** * nand_command_lp - [DEFAULT] Send command to NAND large page device - * @mtd: MTD device structure - * @command: the command to be sent - * @column: the column address for this command, -1 if none - * @page_addr: the page address for this command, -1 if none + * @mtd: MTD device structure + * @command: the command to be sent + * @column: the column address for this command, -1 if none + * @page_addr: the page address for this command, -1 if none * * Send command to NAND device. This is the version for the new large page * devices We dont have the separate regions as we have in the small page @@ -679,8 +672,8 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE); /* - * program and erase have their own busy handlers - * status, sequential in, and deplete1 need no delay + * Program and erase have their own busy handlers status, sequential + * in, and deplete1 need no delay. */ switch (command) { @@ -694,14 +687,12 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, case NAND_CMD_DEPLETE1: return; - /* - * read error status commands require only a short delay - */ case NAND_CMD_STATUS_ERROR: case NAND_CMD_STATUS_ERROR0: case NAND_CMD_STATUS_ERROR1: case NAND_CMD_STATUS_ERROR2: case NAND_CMD_STATUS_ERROR3: + /* Read error status commands require only a short delay */ udelay(chip->chip_delay); return; @@ -735,7 +726,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, default: /* * If we don't have access to the busy pin, we apply the given - * command delay + * command delay. */ if (!chip->dev_ready) { udelay(chip->chip_delay); @@ -743,8 +734,10 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, } } - /* Apply this short delay always to ensure that we do wait tWB in - * any case on any machine. */ + /* + * Apply this short delay always to ensure that we do wait tWB in + * any case on any machine. + */ ndelay(100); nand_wait_ready(mtd); @@ -752,9 +745,9 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, /** * panic_nand_get_device - [GENERIC] Get chip for selected access - * @chip: the nand chip descriptor - * @mtd: MTD device structure - * @new_state: the state which is requested + * @chip: the nand chip descriptor + * @mtd: MTD device structure + * @new_state: the state which is requested * * Used when in panic, no locks are taken. */ @@ -768,9 +761,9 @@ static void panic_nand_get_device(struct nand_chip *chip, /** * nand_get_device - [GENERIC] Get chip for selected access - * @chip: the nand chip descriptor - * @mtd: MTD device structure - * @new_state: the state which is requested + * @chip: the nand chip descriptor + * @mtd: MTD device structure + * @new_state: the state which is requested * * Get the device and lock it for exclusive access */ @@ -808,10 +801,10 @@ retry: } /** - * panic_nand_wait - [GENERIC] wait until the command is done - * @mtd: MTD device structure - * @chip: NAND chip structure - * @timeo: Timeout + * panic_nand_wait - [GENERIC] wait until the command is done + * @mtd: MTD device structure + * @chip: NAND chip structure + * @timeo: timeout * * Wait for command done. This is a helper function for nand_wait used when * we are in interrupt context. May happen when in panic and trying to write @@ -834,13 +827,13 @@ static void panic_nand_wait(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_wait - [DEFAULT] wait until the command is done - * @mtd: MTD device structure - * @chip: NAND chip structure + * nand_wait - [DEFAULT] wait until the command is done + * @mtd: MTD device structure + * @chip: NAND chip structure * - * Wait for command done. This applies to erase and program only - * Erase can take up to 400ms and program up to 20ms according to - * general NAND and SmartMedia specs + * Wait for command done. This applies to erase and program only. Erase can + * take up to 400ms and program up to 20ms according to general NAND and + * SmartMedia specs. */ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip) { @@ -855,8 +848,10 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip) led_trigger_event(nand_led_trigger, LED_FULL); - /* Apply this short delay always to ensure that we do wait tWB in - * any case on any machine. */ + /* + * Apply this short delay always to ensure that we do wait tWB in any + * case on any machine. + */ ndelay(100); if ((state == FL_ERASING) && (chip->options & NAND_IS_AND)) @@ -886,16 +881,15 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip) /** * __nand_unlock - [REPLACEABLE] unlocks specified locked blocks - * * @mtd: mtd info * @ofs: offset to start unlock from * @len: length to unlock - * @invert: when = 0, unlock the range of blocks within the lower and - * upper boundary address - * when = 1, unlock the range of blocks outside the boundaries - * of the lower and upper boundary address + * @invert: when = 0, unlock the range of blocks within the lower and + * upper boundary address + * when = 1, unlock the range of blocks outside the boundaries + * of the lower and upper boundary address * - * return - unlock status + * Returs unlock status. */ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len, int invert) @@ -927,12 +921,11 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs, /** * nand_unlock - [REPLACEABLE] unlocks specified locked blocks - * * @mtd: mtd info * @ofs: offset to start unlock from * @len: length to unlock * - * return - unlock status + * Returns unlock status. */ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { @@ -976,18 +969,16 @@ EXPORT_SYMBOL(nand_unlock); /** * nand_lock - [REPLACEABLE] locks all blocks present in the device - * * @mtd: mtd info * @ofs: offset to start unlock from * @len: length to unlock * - * return - lock status - * - * This feature is not supported in many NAND parts. 'Micron' NAND parts - * do have this feature, but it allows only to lock all blocks, not for - * specified range for block. + * This feature is not supported in many NAND parts. 'Micron' NAND parts do + * have this feature, but it allows only to lock all blocks, not for specified + * range for block. Implementing 'lock' feature by making use of 'unlock', for + * now. * - * Implementing 'lock' feature by making use of 'unlock', for now. + * Returns lock status. */ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) { @@ -1042,12 +1033,13 @@ EXPORT_SYMBOL(nand_lock); /** * nand_read_page_raw - [Intern] read raw page data without ecc - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: buffer to store read data - * @page: page number to read + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: buffer to store read data + * @page: page number to read * - * Not for syndrome calculating ecc controllers, which use a special oob layout + * Not for syndrome calculating ecc controllers, which use a special oob + * layout. */ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1059,10 +1051,10 @@ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_read_page_raw_syndrome - [Intern] read raw page data without ecc - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: buffer to store read data - * @page: page number to read + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: buffer to store read data + * @page: page number to read * * We need a special oob layout and handling even when OOB isn't used. */ @@ -1102,10 +1094,10 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd, /** * nand_read_page_swecc - [REPLACABLE] software ecc based page read function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: buffer to store read data - * @page: page number to read + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: buffer to store read data + * @page: page number to read */ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1143,11 +1135,11 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_read_subpage - [REPLACABLE] software ecc based sub-page read function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @data_offs: offset of requested data within the page - * @readlen: data length - * @bufpoi: buffer to store read data + * @mtd: mtd info structure + * @chip: nand chip info structure + * @data_offs: offset of requested data within the page + * @readlen: data length + * @bufpoi: buffer to store read data */ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi) @@ -1160,12 +1152,12 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, int busw = (chip->options & NAND_BUSWIDTH_16) ? 2 : 1; int index = 0; - /* Column address wihin the page aligned to ECC size (256bytes). */ + /* Column address wihin the page aligned to ECC size (256bytes) */ start_step = data_offs / chip->ecc.size; end_step = (data_offs + readlen - 1) / chip->ecc.size; num_steps = end_step - start_step + 1; - /* Data size aligned to ECC ecc.size*/ + /* Data size aligned to ECC ecc.size */ datafrag_len = num_steps * chip->ecc.size; eccfrag_len = num_steps * chip->ecc.bytes; @@ -1177,13 +1169,14 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, p = bufpoi + data_col_addr; chip->read_buf(mtd, p, datafrag_len); - /* Calculate ECC */ + /* Calculate ECC */ for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size) chip->ecc.calculate(mtd, p, &chip->buffers->ecccalc[i]); - /* The performance is faster if to position offsets - according to ecc.pos. Let make sure here that - there are no gaps in ecc positions */ + /* + * The performance is faster if we position offsets according to + * ecc.pos. Let's make sure that there are no gaps in ecc positions. + */ for (i = 0; i < eccfrag_len - 1; i++) { if (eccpos[i + start_step * chip->ecc.bytes] + 1 != eccpos[i + start_step * chip->ecc.bytes + 1]) { @@ -1195,8 +1188,10 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1); chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); } else { - /* send the command to read the particular ecc bytes */ - /* take care about buswidth alignment in read_buf */ + /* + * Send the command to read the particular ecc bytes take care + * about buswidth alignment in read_buf. + */ index = start_step * chip->ecc.bytes; aligned_pos = eccpos[index] & ~(busw - 1); @@ -1230,12 +1225,13 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_read_page_hwecc - [REPLACABLE] hardware ecc based page read function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: buffer to store read data - * @page: page number to read + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: buffer to store read data + * @page: page number to read * - * Not for syndrome calculating ecc controllers which need a special oob layout + * Not for syndrome calculating ecc controllers which need a special oob + * layout. */ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1275,17 +1271,16 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_read_page_hwecc_oob_first - [REPLACABLE] hw ecc, read oob first - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: buffer to store read data - * @page: page number to read + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: buffer to store read data + * @page: page number to read * - * Hardware ECC for large page chips, require OOB to be read first. - * For this ECC mode, the write_page method is re-used from ECC_HW. - * These methods read/write ECC from the OOB area, unlike the - * ECC_HW_SYNDROME support with multiple ECC steps, follows the - * "infix ECC" scheme and reads/writes ECC from the data area, by - * overwriting the NAND manufacturer bad block markings. + * Hardware ECC for large page chips, require OOB to be read first. For this + * ECC mode, the write_page method is re-used from ECC_HW. These methods + * read/write ECC from the OOB area, unlike the ECC_HW_SYNDROME support with + * multiple ECC steps, follows the "infix ECC" scheme and reads/writes ECC from + * the data area, by overwriting the NAND manufacturer bad block markings. */ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1324,13 +1319,13 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, /** * nand_read_page_syndrome - [REPLACABLE] hardware ecc syndrom based page read - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: buffer to store read data - * @page: page number to read + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: buffer to store read data + * @page: page number to read * - * The hw generator calculates the error syndrome automatically. Therefor - * we need a special oob layout and handling. + * The hw generator calculates the error syndrome automatically. Therefore we + * need a special oob layout and handling. */ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1379,10 +1374,10 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_transfer_oob - [Internal] Transfer oob to client buffer - * @chip: nand chip structure - * @oob: oob destination address - * @ops: oob ops structure - * @len: size of oob to transfer + * @chip: nand chip structure + * @oob: oob destination address + * @ops: oob ops structure + * @len: size of oob to transfer */ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, struct mtd_oob_ops *ops, size_t len) @@ -1400,7 +1395,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, size_t bytes = 0; for (; free->length && len; free++, len -= bytes) { - /* Read request not from offset 0 ? */ + /* Read request not from offset 0? */ if (unlikely(roffs)) { if (roffs >= free->length) { roffs -= free->length; @@ -1427,10 +1422,9 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, /** * nand_do_read_ops - [Internal] Read data with ECC - * - * @mtd: MTD device structure - * @from: offset to read from - * @ops: oob ops structure + * @mtd: MTD device structure + * @from: offset to read from + * @ops: oob ops structure * * Internal function. Called with chip held. */ @@ -1467,7 +1461,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, bytes = min(mtd->writesize - col, readlen); aligned = (bytes == mtd->writesize); - /* Is the current page in the buffer ? */ + /* Is the current page in the buffer? */ if (realpage != chip->pagebuf || oob) { bufpoi = aligned ? buf : chip->buffers->databuf; @@ -1533,7 +1527,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, if (!readlen) break; - /* For subsequent reads align to page boundary. */ + /* For subsequent reads align to page boundary */ col = 0; /* Increment page address */ realpage++; @@ -1546,8 +1540,9 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, chip->select_chip(mtd, chipnr); } - /* Check, if the chip supports auto page increment - * or if we have hit a block boundary. + /* + * Check, if the chip supports auto page increment or if we + * have hit a block boundary. */ if (!NAND_CANAUTOINCR(chip) || !(page & blkcheck)) sndcmd = 1; @@ -1568,13 +1563,13 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, /** * nand_read - [MTD Interface] MTD compatibility function for nand_do_read_ecc - * @mtd: MTD device structure - * @from: offset to read from - * @len: number of bytes to read - * @retlen: pointer to variable to store the number of read bytes - * @buf: the databuffer to put data + * @mtd: MTD device structure + * @from: offset to read from + * @len: number of bytes to read + * @retlen: pointer to variable to store the number of read bytes + * @buf: the databuffer to put data * - * Get hold of the chip and call nand_do_read + * Get hold of the chip and call nand_do_read. */ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, uint8_t *buf) @@ -1605,10 +1600,10 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, /** * nand_read_oob_std - [REPLACABLE] the most common OOB data read function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @page: page number to read - * @sndcmd: flag whether to issue read command or not + * @mtd: mtd info structure + * @chip: nand chip info structure + * @page: page number to read + * @sndcmd: flag whether to issue read command or not */ static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page, int sndcmd) @@ -1624,10 +1619,10 @@ static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_read_oob_syndrome - [REPLACABLE] OOB data read function for HW ECC * with syndromes - * @mtd: mtd info structure - * @chip: nand chip info structure - * @page: page number to read - * @sndcmd: flag whether to issue read command or not + * @mtd: mtd info structure + * @chip: nand chip info structure + * @page: page number to read + * @sndcmd: flag whether to issue read command or not */ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip, int page, int sndcmd) @@ -1662,9 +1657,9 @@ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_write_oob_std - [REPLACABLE] the most common OOB data write function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @page: page number to write + * @mtd: mtd info structure + * @chip: nand chip info structure + * @page: page number to write */ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page) @@ -1685,10 +1680,10 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_write_oob_syndrome - [REPLACABLE] OOB data write function for HW ECC - * with syndrome - only for large page flash ! - * @mtd: mtd info structure - * @chip: nand chip info structure - * @page: page number to write + * with syndrome - only for large page flash + * @mtd: mtd info structure + * @chip: nand chip info structure + * @page: page number to write */ static int nand_write_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip, int page) @@ -1744,11 +1739,11 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd, /** * nand_do_read_oob - [Intern] NAND read out-of-band - * @mtd: MTD device structure - * @from: offset to read from - * @ops: oob operations description structure + * @mtd: MTD device structure + * @from: offset to read from + * @ops: oob operations description structure * - * NAND read out-of-band data from the spare area + * NAND read out-of-band data from the spare area. */ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) @@ -1824,8 +1819,9 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, chip->select_chip(mtd, chipnr); } - /* Check, if the chip supports auto page increment - * or if we have hit a block boundary. + /* + * Check, if the chip supports auto page increment or if we + * have hit a block boundary. */ if (!NAND_CANAUTOINCR(chip) || !(page & blkcheck)) sndcmd = 1; @@ -1837,11 +1833,11 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, /** * nand_read_oob - [MTD Interface] NAND read data and/or out-of-band - * @mtd: MTD device structure - * @from: offset to read from - * @ops: oob operation description structure + * @mtd: MTD device structure + * @from: offset to read from + * @ops: oob operation description structure * - * NAND read data and/or out-of-band data + * NAND read data and/or out-of-band data. */ static int nand_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) @@ -1883,11 +1879,12 @@ out: /** * nand_write_page_raw - [Intern] raw page write function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: data buffer + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: data buffer * - * Not for syndrome calculating ecc controllers, which use a special oob layout + * Not for syndrome calculating ecc controllers, which use a special oob + * layout. */ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf) @@ -1898,9 +1895,9 @@ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_write_page_raw_syndrome - [Intern] raw page write function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: data buffer + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: data buffer * * We need a special oob layout and handling even when ECC isn't checked. */ @@ -1937,9 +1934,9 @@ static void nand_write_page_raw_syndrome(struct mtd_info *mtd, } /** * nand_write_page_swecc - [REPLACABLE] software ecc based page write function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: data buffer + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: data buffer */ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf) @@ -1963,9 +1960,9 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_write_page_hwecc - [REPLACABLE] hardware ecc based page write function - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: data buffer + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: data buffer */ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf) @@ -1991,12 +1988,12 @@ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_write_page_syndrome - [REPLACABLE] hardware ecc syndrom based page write - * @mtd: mtd info structure - * @chip: nand chip info structure - * @buf: data buffer + * @mtd: mtd info structure + * @chip: nand chip info structure + * @buf: data buffer * - * The hw generator calculates the error syndrome automatically. Therefor - * we need a special oob layout and handling. + * The hw generator calculates the error syndrome automatically. Therefore we + * need a special oob layout and handling. */ static void nand_write_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf) @@ -2035,12 +2032,12 @@ static void nand_write_page_syndrome(struct mtd_info *mtd, /** * nand_write_page - [REPLACEABLE] write one page - * @mtd: MTD device structure - * @chip: NAND chip descriptor - * @buf: the data to write - * @page: page number to write - * @cached: cached programming - * @raw: use _raw version of write_page + * @mtd: MTD device structure + * @chip: NAND chip descriptor + * @buf: the data to write + * @page: page number to write + * @cached: cached programming + * @raw: use _raw version of write_page */ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf, int page, int cached, int raw) @@ -2056,7 +2053,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, /* * Cached progamming disabled for now, Not sure if its worth the - * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s) + * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s). */ cached = 0; @@ -2066,7 +2063,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, status = chip->waitfunc(mtd, chip); /* * See if operation failed and additional status checks are - * available + * available. */ if ((status & NAND_STATUS_FAIL) && (chip->errstat)) status = chip->errstat(mtd, chip, FL_WRITING, status, @@ -2091,10 +2088,10 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_fill_oob - [Internal] Transfer client buffer to oob - * @chip: nand chip structure - * @oob: oob data buffer - * @len: oob data write length - * @ops: oob ops structure + * @chip: nand chip structure + * @oob: oob data buffer + * @len: oob data write length + * @ops: oob ops structure */ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, size_t len, struct mtd_oob_ops *ops) @@ -2112,7 +2109,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, size_t len, size_t bytes = 0; for (; free->length && len; free++, len -= bytes) { - /* Write request not from offset 0 ? */ + /* Write request not from offset 0? */ if (unlikely(woffs)) { if (woffs >= free->length) { woffs -= free->length; @@ -2141,11 +2138,11 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, size_t len, /** * nand_do_write_ops - [Internal] NAND write with ECC - * @mtd: MTD device structure - * @to: offset to write to - * @ops: oob operations description structure + * @mtd: MTD device structure + * @to: offset to write to + * @ops: oob operations description structure * - * NAND write with ECC + * NAND write with ECC. */ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) @@ -2166,7 +2163,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, if (!writelen) return 0; - /* reject writes, which are not page aligned */ + /* Reject writes, which are not page aligned */ if (NOTALIGNED(to) || NOTALIGNED(ops->len)) { printk(KERN_NOTICE "%s: Attempt to write not " "page aligned data\n", __func__); @@ -2208,7 +2205,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, int cached = writelen > bytes && page != blockmask; uint8_t *wbuf = buf; - /* Partial page write ? */ + /* Partial page write? */ if (unlikely(column || writelen < (mtd->writesize - 1))) { cached = 0; bytes = min_t(int, bytes - column, (int) writelen); @@ -2254,11 +2251,11 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, /** * panic_nand_write - [MTD Interface] NAND write with ECC - * @mtd: MTD device structure - * @to: offset to write to - * @len: number of bytes to write - * @retlen: pointer to variable to store the number of written bytes - * @buf: the data to write + * @mtd: MTD device structure + * @to: offset to write to + * @len: number of bytes to write + * @retlen: pointer to variable to store the number of written bytes + * @buf: the data to write * * NAND write with ECC. Used when performing writes in interrupt context, this * may for example be called by mtdoops when writing an oops while in panic. @@ -2275,10 +2272,10 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, if (!len) return 0; - /* Wait for the device to get ready. */ + /* Wait for the device to get ready */ panic_nand_wait(mtd, chip, 400); - /* Grab the device. */ + /* Grab the device */ panic_nand_get_device(chip, mtd, FL_WRITING); chip->ops.len = len; @@ -2293,13 +2290,13 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, /** * nand_write - [MTD Interface] NAND write with ECC - * @mtd: MTD device structure - * @to: offset to write to - * @len: number of bytes to write - * @retlen: pointer to variable to store the number of written bytes - * @buf: the data to write + * @mtd: MTD device structure + * @to: offset to write to + * @len: number of bytes to write + * @retlen: pointer to variable to store the number of written bytes + * @buf: the data to write * - * NAND write with ECC + * NAND write with ECC. */ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf) @@ -2330,11 +2327,11 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, /** * nand_do_write_oob - [MTD Interface] NAND write out-of-band - * @mtd: MTD device structure - * @to: offset to write to - * @ops: oob operation description structure + * @mtd: MTD device structure + * @to: offset to write to + * @ops: oob operation description structure * - * NAND write out-of-band + * NAND write out-of-band. */ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) @@ -2410,9 +2407,9 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, /** * nand_write_oob - [MTD Interface] NAND write data and/or out-of-band - * @mtd: MTD device structure - * @to: offset to write to - * @ops: oob operation description structure + * @mtd: MTD device structure + * @to: offset to write to + * @ops: oob operation description structure */ static int nand_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops) @@ -2453,10 +2450,10 @@ out: /** * single_erease_cmd - [GENERIC] NAND standard block erase command function - * @mtd: MTD device structure - * @page: the page address of the block which will be erased + * @mtd: MTD device structure + * @page: the page address of the block which will be erased * - * Standard erase command for NAND chips + * Standard erase command for NAND chips. */ static void single_erase_cmd(struct mtd_info *mtd, int page) { @@ -2468,11 +2465,10 @@ static void single_erase_cmd(struct mtd_info *mtd, int page) /** * multi_erease_cmd - [GENERIC] AND specific block erase command function - * @mtd: MTD device structure - * @page: the page address of the block which will be erased + * @mtd: MTD device structure + * @page: the page address of the block which will be erased * - * AND multi block erase command function - * Erase 4 consecutive blocks + * AND multi block erase command function. Erase 4 consecutive blocks. */ static void multi_erase_cmd(struct mtd_info *mtd, int page) { @@ -2487,10 +2483,10 @@ static void multi_erase_cmd(struct mtd_info *mtd, int page) /** * nand_erase - [MTD Interface] erase block(s) - * @mtd: MTD device structure - * @instr: erase instruction + * @mtd: MTD device structure + * @instr: erase instruction * - * Erase one ore more blocks + * Erase one ore more blocks. */ static int nand_erase(struct mtd_info *mtd, struct erase_info *instr) { @@ -2500,11 +2496,11 @@ static int nand_erase(struct mtd_info *mtd, struct erase_info *instr) #define BBT_PAGE_MASK 0xffffff3f /** * nand_erase_nand - [Internal] erase block(s) - * @mtd: MTD device structure - * @instr: erase instruction - * @allowbbt: allow erasing the bbt area + * @mtd: MTD device structure + * @instr: erase instruction + * @allowbbt: allow erasing the bbt area * - * Erase one ore more blocks + * Erase one ore more blocks. */ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, int allowbbt) @@ -2549,7 +2545,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, * If BBT requires refresh, set the BBT page mask to see if the BBT * should be rewritten. Otherwise the mask is set to 0xffffffff which * can not be matched. This is also done when the bbt is actually - * erased to avoid recusrsive updates + * erased to avoid recusrsive updates. */ if (chip->options & BBT_AUTO_REFRESH && !allowbbt) bbt_masked_page = chip->bbt_td->pages[chipnr] & BBT_PAGE_MASK; @@ -2560,9 +2556,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, instr->state = MTD_ERASING; while (len) { - /* - * heck if we have a bad block, we do not erase bad blocks ! - */ + /* Heck if we have a bad block, we do not erase bad blocks! */ if (nand_block_checkbad(mtd, ((loff_t) page) << chip->page_shift, 0, allowbbt)) { printk(KERN_WARNING "%s: attempt to erase a bad block " @@ -2573,7 +2567,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* * Invalidate the page cache, if we erase the block which - * contains the current cached page + * contains the current cached page. */ if (page <= chip->pagebuf && chip->pagebuf < (page + pages_per_block)) @@ -2603,7 +2597,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* * If BBT requires refresh, set the BBT rewrite flag to the - * page being erased + * page being erased. */ if (bbt_masked_page != 0xffffffff && (page & BBT_PAGE_MASK) == bbt_masked_page) @@ -2622,7 +2616,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* * If BBT requires refresh and BBT-PERCHIP, set the BBT - * page mask to see if this BBT should be rewritten + * page mask to see if this BBT should be rewritten. */ if (bbt_masked_page != 0xffffffff && (chip->bbt_td->options & NAND_BBT_PERCHIP)) @@ -2645,7 +2639,7 @@ erase_exit: /* * If BBT requires refresh and erase was successful, rewrite any - * selected bad block tables + * selected bad block tables. */ if (bbt_masked_page == 0xffffffff || ret) return ret; @@ -2653,7 +2647,7 @@ erase_exit: for (chipnr = 0; chipnr < chip->numchips; chipnr++) { if (!rewrite_bbt[chipnr]) continue; - /* update the BBT for chip */ + /* Update the BBT for chip */ DEBUG(MTD_DEBUG_LEVEL0, "%s: nand_update_bbt " "(%d:0x%0llx 0x%0x)\n", __func__, chipnr, rewrite_bbt[chipnr], chip->bbt_td->pages[chipnr]); @@ -2666,9 +2660,9 @@ erase_exit: /** * nand_sync - [MTD Interface] sync - * @mtd: MTD device structure + * @mtd: MTD device structure * - * Sync is actually a wait for chip ready function + * Sync is actually a wait for chip ready function. */ static void nand_sync(struct mtd_info *mtd) { @@ -2684,8 +2678,8 @@ static void nand_sync(struct mtd_info *mtd) /** * nand_block_isbad - [MTD Interface] Check if block at offset is bad - * @mtd: MTD device structure - * @offs: offset relative to mtd start + * @mtd: MTD device structure + * @offs: offset relative to mtd start */ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs) { @@ -2698,8 +2692,8 @@ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs) /** * nand_block_markbad - [MTD Interface] Mark block at the given offset as bad - * @mtd: MTD device structure - * @ofs: offset relative to mtd start + * @mtd: MTD device structure + * @ofs: offset relative to mtd start */ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs) { @@ -2708,7 +2702,7 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs) ret = nand_block_isbad(mtd, ofs); if (ret) { - /* If it was bad already, return success and do nothing. */ + /* If it was bad already, return success and do nothing */ if (ret > 0) return 0; return ret; @@ -2719,7 +2713,7 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs) /** * nand_suspend - [MTD Interface] Suspend the NAND flash - * @mtd: MTD device structure + * @mtd: MTD device structure */ static int nand_suspend(struct mtd_info *mtd) { @@ -2730,7 +2724,7 @@ static int nand_suspend(struct mtd_info *mtd) /** * nand_resume - [MTD Interface] Resume the NAND flash - * @mtd: MTD device structure + * @mtd: MTD device structure */ static void nand_resume(struct mtd_info *mtd) { @@ -2743,9 +2737,7 @@ static void nand_resume(struct mtd_info *mtd) "in suspended state\n", __func__); } -/* - * Set default functions - */ +/* Set default functions */ static void nand_set_defaults(struct nand_chip *chip, int busw) { /* check for proper chip_delay setup, set 20us if not */ @@ -2787,23 +2779,21 @@ static void nand_set_defaults(struct nand_chip *chip, int busw) } -/* - * sanitize ONFI strings so we can safely print them - */ +/* Sanitize ONFI strings so we can safely print them */ static void sanitize_string(uint8_t *s, size_t len) { ssize_t i; - /* null terminate */ + /* Null terminate */ s[len - 1] = 0; - /* remove non printable chars */ + /* Remove non printable chars */ for (i = 0; i < len - 1; i++) { if (s[i] < ' ' || s[i] > 127) s[i] = '?'; } - /* remove trailing spaces */ + /* Remove trailing spaces */ strim(s); } @@ -2820,7 +2810,7 @@ static u16 onfi_crc16(u16 crc, u8 const *p, size_t len) } /* - * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise + * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise. */ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int busw) @@ -2829,7 +2819,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; - /* try ONFI for unknow chip or LP */ + /* Try ONFI for unknow chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I') @@ -2849,7 +2839,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, if (i == 3) return 0; - /* check version */ + /* Check version */ val = le16_to_cpu(p->revision); if (val & (1 << 5)) chip->onfi_version = 23; @@ -2890,7 +2880,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, } /* - * Get the flash and manufacturer id and lookup if the type is supported + * Get the flash and manufacturer id and lookup if the type is supported. */ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, struct nand_chip *chip, @@ -2907,7 +2897,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, /* * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx) - * after power-up + * after power-up. */ chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1); @@ -2918,7 +2908,8 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, *maf_id = chip->read_byte(mtd); *dev_id = chip->read_byte(mtd); - /* Try again to make sure, as some systems the bus-hold or other + /* + * Try again to make sure, as some systems the bus-hold or other * interface concerns can cause random data which looks like a * possibly credible NAND flash to appear. If the two results do * not match, ignore the device completely. @@ -2967,7 +2958,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->chipsize = (uint64_t)type->chipsize << 20; if (!type->pagesize && chip->init_size) { - /* set the pagesize, oobsize, erasesize by the driver*/ + /* Set the pagesize, oobsize, erasesize by the driver */ busw = chip->init_size(mtd, chip, id_data); } else if (!type->pagesize) { int extid; @@ -3027,7 +3018,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, } } else { /* - * Old devices have chip data hardcoded in the device id table + * Old devices have chip data hardcoded in the device id table. */ mtd->erasesize = type->erasesize; mtd->writesize = type->pagesize; @@ -3037,7 +3028,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, /* * Check for Spansion/AMD ID + repeating 5th, 6th byte since * some Spansion chips have erasesize that conflicts with size - * listed in nand_ids table + * listed in nand_ids table. * Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39) */ if (*maf_id == NAND_MFR_AMD && id_data[4] != 0x00 && @@ -3051,15 +3042,16 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->options &= ~NAND_CHIPOPTIONS_MSK; chip->options |= type->options & NAND_CHIPOPTIONS_MSK; - /* Check if chip is a not a samsung device. Do not clear the - * options for chips which are not having an extended id. + /* + * Check if chip is not a Samsung device. Do not clear the + * options for chips which do not have an extended id. */ if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize) chip->options &= ~NAND_SAMSUNG_LP_OPTIONS; ident_done: /* - * Set chip as a default. Board drivers can override it, if necessary + * Set chip as a default. Board drivers can override it, if necessary. */ chip->options |= NAND_NO_AUTOINCR; @@ -3071,7 +3063,7 @@ ident_done: /* * Check, if buswidth is correct. Hardware drivers should set - * chip correct ! + * chip correct! */ if (busw != (chip->options & NAND_BUSWIDTH_16)) { printk(KERN_INFO "NAND device: Manufacturer ID:" @@ -3085,7 +3077,7 @@ ident_done: /* Calculate the address shift from the page size */ chip->page_shift = ffs(mtd->writesize) - 1; - /* Convert chipsize to number of pages per chip -1. */ + /* Convert chipsize to number of pages per chip -1 */ chip->pagemask = (chip->chipsize >> chip->page_shift) - 1; chip->bbt_erase_shift = chip->phys_erase_shift = @@ -3131,7 +3123,7 @@ ident_done: else chip->erase_cmd = single_erase_cmd; - /* Do not replace user supplied command function ! */ + /* Do not replace user supplied command function! */ if (mtd->writesize > 512 && chip->cmdfunc == nand_command) chip->cmdfunc = nand_command_lp; @@ -3145,12 +3137,12 @@ ident_done: /** * nand_scan_ident - [NAND Interface] Scan for the NAND device - * @mtd: MTD device structure - * @maxchips: Number of chips to scan for - * @table: Alternative NAND ID table + * @mtd: MTD device structure + * @maxchips: number of chips to scan for + * @table: alternative NAND ID table * - * This is the first phase of the normal nand_scan() function. It - * reads the flash ID and sets up MTD fields accordingly. + * This is the first phase of the normal nand_scan() function. It reads the + * flash ID and sets up MTD fields accordingly. * * The mtd->owner field must be set to the module of the caller. */ @@ -3203,11 +3195,11 @@ EXPORT_SYMBOL(nand_scan_ident); /** * nand_scan_tail - [NAND Interface] Scan for the NAND device - * @mtd: MTD device structure + * @mtd: MTD device structure * - * This is the second phase of the normal nand_scan() function. It - * fills out all the uninitialized function pointers with the defaults - * and scans for a bad block table if appropriate. + * This is the second phase of the normal nand_scan() function. It fills out + * all the uninitialized function pointers with the defaults and scans for a + * bad block table if appropriate. */ int nand_scan_tail(struct mtd_info *mtd) { @@ -3223,7 +3215,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->oob_poi = chip->buffers->databuf + mtd->writesize; /* - * If no default placement scheme is given, select an appropriate one + * If no default placement scheme is given, select an appropriate one. */ if (!chip->ecc.layout && (chip->ecc.mode != NAND_ECC_SOFT_BCH)) { switch (mtd->oobsize) { @@ -3250,7 +3242,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->write_page = nand_write_page; /* - * check ECC mode, default to software if 3byte/512byte hardware ECC is + * Check ECC mode, default to software if 3byte/512byte hardware ECC is * selected and we have 256 byte pagesize fallback to software ECC */ @@ -3267,7 +3259,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.read_page = nand_read_page_hwecc_oob_first; case NAND_ECC_HW: - /* Use standard hwecc read page function ? */ + /* Use standard hwecc read page function? */ if (!chip->ecc.read_page) chip->ecc.read_page = nand_read_page_hwecc; if (!chip->ecc.write_page) @@ -3292,7 +3284,7 @@ int nand_scan_tail(struct mtd_info *mtd) "Hardware ECC not possible\n"); BUG(); } - /* Use standard syndrome read/write page function ? */ + /* Use standard syndrome read/write page function? */ if (!chip->ecc.read_page) chip->ecc.read_page = nand_read_page_syndrome; if (!chip->ecc.write_page) @@ -3345,8 +3337,8 @@ int nand_scan_tail(struct mtd_info *mtd) /* * Board driver should supply ecc.size and ecc.bytes values to * select how many bits are correctable; see nand_bch_init() - * for details. - * Otherwise, default to 4 bits for large page devices + * for details. Otherwise, default to 4 bits for large page + * devices. */ if (!chip->ecc.size && (mtd->oobsize >= 64)) { chip->ecc.size = 512; @@ -3383,7 +3375,7 @@ int nand_scan_tail(struct mtd_info *mtd) /* * The number of bytes available for a client to place data into - * the out of band area + * the out of band area. */ chip->ecc.layout->oobavail = 0; for (i = 0; chip->ecc.layout->oobfree[i].length @@ -3394,7 +3386,7 @@ int nand_scan_tail(struct mtd_info *mtd) /* * Set the number of read / write steps for one page depending on ECC - * mode + * mode. */ chip->ecc.steps = mtd->writesize / chip->ecc.size; if (chip->ecc.steps * chip->ecc.size != mtd->writesize) { @@ -3403,10 +3395,7 @@ int nand_scan_tail(struct mtd_info *mtd) } chip->ecc.total = chip->ecc.steps * chip->ecc.bytes; - /* - * Allow subpage writes up to ecc.steps. Not possible for MLC - * FLASH. - */ + /* Allow subpage writes up to ecc.steps. Not possible for MLC flash */ if (!(chip->options & NAND_NO_SUBPAGE_WRITE) && !(chip->cellinfo & NAND_CI_CELLTYPE_MSK)) { switch (chip->ecc.steps) { @@ -3464,9 +3453,11 @@ int nand_scan_tail(struct mtd_info *mtd) } EXPORT_SYMBOL(nand_scan_tail); -/* is_module_text_address() isn't exported, and it's mostly a pointless +/* + * is_module_text_address() isn't exported, and it's mostly a pointless * test if this is a module _anyway_ -- they'd have to try _really_ hard - * to call us from in-kernel code if the core NAND support is modular. */ + * to call us from in-kernel code if the core NAND support is modular. + */ #ifdef MODULE #define caller_is_module() (1) #else @@ -3476,15 +3467,13 @@ EXPORT_SYMBOL(nand_scan_tail); /** * nand_scan - [NAND Interface] Scan for the NAND device - * @mtd: MTD device structure - * @maxchips: Number of chips to scan for - * - * This fills out all the uninitialized function pointers - * with the defaults. - * The flash ID is read and the mtd/chip structures are - * filled with the appropriate values. - * The mtd->owner field must be set to the module of the caller + * @mtd: MTD device structure + * @maxchips: number of chips to scan for * + * This fills out all the uninitialized function pointers with the defaults. + * The flash ID is read and the mtd/chip structures are filled with the + * appropriate values. The mtd->owner field must be set to the module of the + * caller. */ int nand_scan(struct mtd_info *mtd, int maxchips) { @@ -3506,8 +3495,8 @@ EXPORT_SYMBOL(nand_scan); /** * nand_release - [NAND Interface] Free resources held by the NAND device - * @mtd: MTD device structure -*/ + * @mtd: MTD device structure + */ void nand_release(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 9af703def4aa..ba401662835e 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -80,17 +80,15 @@ static int check_pattern_no_oob(uint8_t *buf, struct nand_bbt_descr *td) /** * check_pattern - [GENERIC] check if a pattern is in the buffer - * @buf: the buffer to search - * @len: the length of buffer to search - * @paglen: the pagelength - * @td: search pattern descriptor + * @buf: the buffer to search + * @len: the length of buffer to search + * @paglen: the pagelength + * @td: search pattern descriptor * - * Check for a pattern at the given place. Used to search bad block - * tables and good / bad block identifiers. - * If the SCAN_EMPTY option is set then check, if all bytes except the - * pattern area contain 0xff - * -*/ + * Check for a pattern at the given place. Used to search bad block tables and + * good / bad block identifiers. If the SCAN_EMPTY option is set then check, if + * all bytes except the pattern area contain 0xff. + */ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td) { int i, end = 0; @@ -127,14 +125,13 @@ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_desc /** * check_short_pattern - [GENERIC] check if a pattern is in the buffer - * @buf: the buffer to search - * @td: search pattern descriptor - * - * Check for a pattern at the given place. Used to search bad block - * tables and good / bad block identifiers. Same as check_pattern, but - * no optional empty check + * @buf: the buffer to search + * @td: search pattern descriptor * -*/ + * Check for a pattern at the given place. Used to search bad block tables and + * good / bad block identifiers. Same as check_pattern, but no optional empty + * check. + */ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td) { int i; @@ -150,7 +147,7 @@ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td) /** * add_marker_len - compute the length of the marker in data area - * @td: BBT descriptor used for computation + * @td: BBT descriptor used for computation * * The length will be 0 if the markeris located in OOB area. */ @@ -169,15 +166,14 @@ static u32 add_marker_len(struct nand_bbt_descr *td) /** * read_bbt - [GENERIC] Read the bad block table starting from page - * @mtd: MTD device structure - * @buf: temporary buffer - * @page: the starting page - * @num: the number of bbt descriptors to read - * @td: the bbt describtion table - * @offs: offset in the memory table + * @mtd: MTD device structure + * @buf: temporary buffer + * @page: the starting page + * @num: the number of bbt descriptors to read + * @td: the bbt describtion table + * @offs: offset in the memory table * * Read the bad block table starting from page. - * */ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, struct nand_bbt_descr *td, int offs) @@ -229,11 +225,13 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, mtd->ecc_stats.bbtblocks++; continue; } - /* Leave it for now, if its matured we can move this - * message to MTD_DEBUG_LEVEL0 */ + /* + * Leave it for now, if it's matured we can + * move this message to MTD_DEBUG_LEVEL0. + */ printk(KERN_DEBUG "nand_read_bbt: Bad block at 0x%012llx\n", (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); - /* Factory marked bad or worn out ? */ + /* Factory marked bad or worn out? */ if (tmp == 0) this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06); else @@ -249,15 +247,15 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, /** * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page - * @mtd: MTD device structure - * @buf: temporary buffer - * @td: descriptor for the bad block table - * @chip: read the table for a specific chip, -1 read all chips. - * Applies only if NAND_BBT_PERCHIP option is set + * @mtd: MTD device structure + * @buf: temporary buffer + * @td: descriptor for the bad block table + * @chip: read the table for a specific chip, -1 read all chips; aplies only if + * NAND_BBT_PERCHIP option is set * - * Read the bad block table for all chips starting at a given page - * We assume that the bbt bits are in consecutive order. -*/ + * Read the bad block table for all chips starting at a given page. We assume + * that the bbt bits are in consecutive order. + */ static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip) { struct nand_chip *this = mtd->priv; @@ -283,9 +281,7 @@ static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc return 0; } -/* - * BBT marker is in the first page, no OOB. - */ +/* BBT marker is in the first page, no OOB */ static int scan_read_raw_data(struct mtd_info *mtd, uint8_t *buf, loff_t offs, struct nand_bbt_descr *td) { @@ -299,9 +295,7 @@ static int scan_read_raw_data(struct mtd_info *mtd, uint8_t *buf, loff_t offs, return mtd->read(mtd, offs, len, &retlen, buf); } -/* - * Scan read raw data from flash - */ +/* Scan read raw data from flash */ static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs, size_t len) { @@ -344,9 +338,7 @@ static int scan_read_raw(struct mtd_info *mtd, uint8_t *buf, loff_t offs, return scan_read_raw_oob(mtd, buf, offs, len); } -/* - * Scan write data with oob to flash - */ +/* Scan write data with oob to flash */ static int scan_write_bbt(struct mtd_info *mtd, loff_t offs, size_t len, uint8_t *buf, uint8_t *oob) { @@ -373,15 +365,14 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td) /** * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page - * @mtd: MTD device structure - * @buf: temporary buffer - * @td: descriptor for the bad block table - * @md: descriptor for the bad block table mirror - * - * Read the bad block table(s) for all chips starting at a given page - * We assume that the bbt bits are in consecutive order. + * @mtd: MTD device structure + * @buf: temporary buffer + * @td: descriptor for the bad block table + * @md: descriptor for the bad block table mirror * -*/ + * Read the bad block table(s) for all chips starting at a given page. We + * assume that the bbt bits are in consecutive order. + */ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md) { @@ -407,9 +398,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, return 1; } -/* - * Scan a given block full - */ +/* Scan a given block full */ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd, loff_t offs, uint8_t *buf, size_t readlen, int scanlen, int len) @@ -427,9 +416,7 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd, return 0; } -/* - * Scan a given block partially - */ +/* Scan a given block partially */ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, loff_t offs, uint8_t *buf, int len) { @@ -444,9 +431,8 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, for (j = 0; j < len; j++) { /* - * Read the full oob until read_oob is fixed to - * handle single byte reads for 16 bit - * buswidth + * Read the full oob until read_oob is fixed to handle single + * byte reads for 16 bit buswidth. */ ret = mtd->read_oob(mtd, offs, &ops); if (ret) @@ -462,14 +448,14 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, /** * create_bbt - [GENERIC] Create a bad block table by scanning the device - * @mtd: MTD device structure - * @buf: temporary buffer - * @bd: descriptor for the good/bad block search pattern - * @chip: create the table for a specific chip, -1 read all chips. - * Applies only if NAND_BBT_PERCHIP option is set + * @mtd: MTD device structure + * @buf: temporary buffer + * @bd: descriptor for the good/bad block search pattern + * @chip: create the table for a specific chip, -1 read all chips; applies only + * if NAND_BBT_PERCHIP option is set * - * Create a bad block table by scanning the device - * for the given good/bad block identify pattern + * Create a bad block table by scanning the device for the given good/bad block + * identify pattern. */ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd, int chip) @@ -500,8 +486,10 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, } if (chip == -1) { - /* Note that numblocks is 2 * (real numblocks) here, see i+=2 - * below as it makes shifting and masking less painful */ + /* + * Note that numblocks is 2 * (real numblocks) here, see i+=2 + * below as it makes shifting and masking less painful + */ numblocks = mtd->size >> (this->bbt_erase_shift - 1); startblock = 0; from = 0; @@ -549,20 +537,18 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, /** * search_bbt - [GENERIC] scan the device for a specific bad block table - * @mtd: MTD device structure - * @buf: temporary buffer - * @td: descriptor for the bad block table + * @mtd: MTD device structure + * @buf: temporary buffer + * @td: descriptor for the bad block table * - * Read the bad block table by searching for a given ident pattern. - * Search is preformed either from the beginning up or from the end of - * the device downwards. The search starts always at the start of a - * block. - * If the option NAND_BBT_PERCHIP is given, each chip is searched - * for a bbt, which contains the bad block information of this chip. - * This is necessary to provide support for certain DOC devices. + * Read the bad block table by searching for a given ident pattern. Search is + * preformed either from the beginning up or from the end of the device + * downwards. The search starts always at the start of a block. If the option + * NAND_BBT_PERCHIP is given, each chip is searched for a bbt, which contains + * the bad block information of this chip. This is necessary to provide support + * for certain DOC devices. * - * The bbt ident pattern resides in the oob area of the first page - * in a block. + * The bbt ident pattern resides in the oob area of the first page in a block. */ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td) { @@ -573,7 +559,7 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr int bbtblocks; int blocktopage = this->bbt_erase_shift - this->page_shift; - /* Search direction top -> down ? */ + /* Search direction top -> down? */ if (td->options & NAND_BBT_LASTBLOCK) { startblock = (mtd->size >> this->bbt_erase_shift) - 1; dir = -1; @@ -582,7 +568,7 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr dir = 1; } - /* Do we have a bbt per chip ? */ + /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) { chips = this->numchips; bbtblocks = this->chipsize >> this->bbt_erase_shift; @@ -631,13 +617,13 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr /** * search_read_bbts - [GENERIC] scan the device for bad block table(s) - * @mtd: MTD device structure - * @buf: temporary buffer - * @td: descriptor for the bad block table - * @md: descriptor for the bad block table mirror + * @mtd: MTD device structure + * @buf: temporary buffer + * @td: descriptor for the bad block table + * @md: descriptor for the bad block table mirror * - * Search and read the bad block table(s) -*/ + * Search and read the bad block table(s). + */ static int search_read_bbts(struct mtd_info *mtd, uint8_t * buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md) { /* Search the primary table */ @@ -653,16 +639,14 @@ static int search_read_bbts(struct mtd_info *mtd, uint8_t * buf, struct nand_bbt /** * write_bbt - [GENERIC] (Re)write the bad block table + * @mtd: MTD device structure + * @buf: temporary buffer + * @td: descriptor for the bad block table + * @md: descriptor for the bad block table mirror + * @chipsel: selector for a specific chip, -1 for all * - * @mtd: MTD device structure - * @buf: temporary buffer - * @td: descriptor for the bad block table - * @md: descriptor for the bad block table mirror - * @chipsel: selector for a specific chip, -1 for all - * - * (Re)write the bad block table - * -*/ + * (Re)write the bad block table. + */ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md, int chipsel) @@ -685,10 +669,10 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (!rcode) rcode = 0xff; - /* Write bad block table per chip rather than per device ? */ + /* Write bad block table per chip rather than per device? */ if (td->options & NAND_BBT_PERCHIP) { numblocks = (int)(this->chipsize >> this->bbt_erase_shift); - /* Full device write or specific chip ? */ + /* Full device write or specific chip? */ if (chipsel == -1) { nrchips = this->numchips; } else { @@ -702,8 +686,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, /* Loop through the chips */ for (; chip < nrchips; chip++) { - - /* There was already a version of the table, reuse the page + /* + * There was already a version of the table, reuse the page * This applies for absolute placement too, as we have the * page nr. in td->pages. */ @@ -712,8 +696,10 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, goto write; } - /* Automatic placement of the bad block table */ - /* Search direction top -> down ? */ + /* + * Automatic placement of the bad block table. Search direction + * top -> down? + */ if (td->options & NAND_BBT_LASTBLOCK) { startblock = numblocks * (chip + 1) - 1; dir = -1; @@ -764,7 +750,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, to = ((loff_t) page) << this->page_shift; - /* Must we save the block contents ? */ + /* Must we save the block contents? */ if (td->options & NAND_BBT_SAVECONTENT) { /* Make it block aligned */ to &= ~((loff_t) ((1 << this->bbt_erase_shift) - 1)); @@ -798,13 +784,13 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, } else if (td->options & NAND_BBT_NO_OOB) { ooboffs = 0; offs = td->len; - /* the version byte */ + /* The version byte */ if (td->options & NAND_BBT_VERSION) offs++; /* Calc length */ len = (size_t) (numblocks >> sft); len += offs; - /* Make it page aligned ! */ + /* Make it page aligned! */ len = ALIGN(len, mtd->writesize); /* Preset the buffer with 0xff */ memset(buf, 0xff, len); @@ -813,7 +799,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, } else { /* Calc length */ len = (size_t) (numblocks >> sft); - /* Make it page aligned ! */ + /* Make it page aligned! */ len = ALIGN(len, mtd->writesize); /* Preset the buffer with 0xff */ memset(buf, 0xff, len + @@ -827,13 +813,13 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (td->options & NAND_BBT_VERSION) buf[ooboffs + td->veroffs] = td->version[chip]; - /* walk through the memory table */ + /* Walk through the memory table */ for (i = 0; i < numblocks;) { uint8_t dat; dat = this->bbt[bbtoffs + (i >> 2)]; for (j = 0; j < 4; j++, i++) { int sftcnt = (i << (3 - sft)) & sftmsk; - /* Do not store the reserved bbt blocks ! */ + /* Do not store the reserved bbt blocks! */ buf[offs + (i >> sft)] &= ~(msk[dat & 0x03] << sftcnt); dat >>= 2; @@ -870,12 +856,12 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, /** * nand_memory_bbt - [GENERIC] create a memory based bad block table - * @mtd: MTD device structure - * @bd: descriptor for the good/bad block search pattern + * @mtd: MTD device structure + * @bd: descriptor for the good/bad block search pattern * - * The function creates a memory based bbt by scanning the device - * for manufacturer / software marked good / bad blocks -*/ + * The function creates a memory based bbt by scanning the device for + * manufacturer / software marked good / bad blocks. + */ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) { struct nand_chip *this = mtd->priv; @@ -886,16 +872,15 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b /** * check_create - [GENERIC] create and write bbt(s) if necessary - * @mtd: MTD device structure - * @buf: temporary buffer - * @bd: descriptor for the good/bad block search pattern + * @mtd: MTD device structure + * @buf: temporary buffer + * @bd: descriptor for the good/bad block search pattern * - * The function checks the results of the previous call to read_bbt - * and creates / updates the bbt(s) if necessary - * Creation is necessary if no bbt was found for the chip/device - * Update is necessary if one of the tables is missing or the - * version nr. of one table is less than the other -*/ + * The function checks the results of the previous call to read_bbt and creates + * / updates the bbt(s) if necessary. Creation is necessary if no bbt was found + * for the chip/device. Update is necessary if one of the tables is missing or + * the version nr. of one table is less than the other. + */ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd) { int i, chips, writeops, chipsel, res; @@ -904,7 +889,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc struct nand_bbt_descr *md = this->bbt_md; struct nand_bbt_descr *rd, *rd2; - /* Do we have a bbt per chip ? */ + /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) chips = this->numchips; else @@ -914,9 +899,9 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc writeops = 0; rd = NULL; rd2 = NULL; - /* Per chip or per device ? */ + /* Per chip or per device? */ chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1; - /* Mirrored table available ? */ + /* Mirrored table available? */ if (md) { if (td->pages[i] == -1 && md->pages[i] == -1) { writeops = 0x03; @@ -965,7 +950,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc goto writecheck; } create: - /* Create the bad block table by scanning the device ? */ + /* Create the bad block table by scanning the device? */ if (!(td->options & NAND_BBT_CREATE)) continue; @@ -977,21 +962,21 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc if (md) md->version[i] = 1; writecheck: - /* read back first ? */ + /* Read back first? */ if (rd) read_abs_bbt(mtd, buf, rd, chipsel); - /* If they weren't versioned, read both. */ + /* If they weren't versioned, read both */ if (rd2) read_abs_bbt(mtd, buf, rd2, chipsel); - /* Write the bad block table to the device ? */ + /* Write the bad block table to the device? */ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { res = write_bbt(mtd, buf, td, md, chipsel); if (res < 0) return res; } - /* Write the mirror bad block table to the device ? */ + /* Write the mirror bad block table to the device? */ if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) { res = write_bbt(mtd, buf, md, td, chipsel); if (res < 0) @@ -1003,20 +988,19 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc /** * mark_bbt_regions - [GENERIC] mark the bad block table regions - * @mtd: MTD device structure - * @td: bad block table descriptor + * @mtd: MTD device structure + * @td: bad block table descriptor * - * The bad block table regions are marked as "bad" to prevent - * accidental erasures / writes. The regions are identified by - * the mark 0x02. -*/ + * The bad block table regions are marked as "bad" to prevent accidental + * erasures / writes. The regions are identified by the mark 0x02. + */ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td) { struct nand_chip *this = mtd->priv; int i, j, chips, block, nrblocks, update; uint8_t oldval, newval; - /* Do we have a bbt per chip ? */ + /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) { chips = this->numchips; nrblocks = (int)(this->chipsize >> this->bbt_erase_shift); @@ -1053,9 +1037,11 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td) update = 1; block += 2; } - /* If we want reserved blocks to be recorded to flash, and some - new ones have been marked, then we need to update the stored - bbts. This should only happen once. */ + /* + * If we want reserved blocks to be recorded to flash, and some + * new ones have been marked, then we need to update the stored + * bbts. This should only happen once. + */ if (update && td->reserved_block_code) nand_update_bbt(mtd, (loff_t)(block - 2) << (this->bbt_erase_shift - 1)); } @@ -1063,8 +1049,8 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td) /** * verify_bbt_descr - verify the bad block description - * @mtd: MTD device structure - * @bd: the table to verify + * @mtd: MTD device structure + * @bd: the table to verify * * This functions performs a few sanity checks on the bad block description * table. @@ -1111,18 +1097,16 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd) /** * nand_scan_bbt - [NAND Interface] scan, find, read and maybe create bad block table(s) - * @mtd: MTD device structure - * @bd: descriptor for the good/bad block search pattern + * @mtd: MTD device structure + * @bd: descriptor for the good/bad block search pattern * - * The function checks, if a bad block table(s) is/are already - * available. If not it scans the device for manufacturer - * marked good / bad blocks and writes the bad block table(s) to - * the selected place. + * The function checks, if a bad block table(s) is/are already available. If + * not it scans the device for manufacturer marked good / bad blocks and writes + * the bad block table(s) to the selected place. * - * The bad block table memory is allocated here. It must be freed - * by calling the nand_free_bbt function. - * -*/ + * The bad block table memory is allocated here. It must be freed by calling + * the nand_free_bbt function. + */ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) { struct nand_chip *this = mtd->priv; @@ -1132,15 +1116,19 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) struct nand_bbt_descr *md = this->bbt_md; len = mtd->size >> (this->bbt_erase_shift + 2); - /* Allocate memory (2bit per block) and clear the memory bad block table */ + /* + * Allocate memory (2bit per block) and clear the memory bad block + * table. + */ this->bbt = kzalloc(len, GFP_KERNEL); if (!this->bbt) { printk(KERN_ERR "nand_scan_bbt: Out of memory\n"); return -ENOMEM; } - /* If no primary table decriptor is given, scan the device - * to build a memory based bad block table + /* + * If no primary table decriptor is given, scan the device to build a + * memory based bad block table. */ if (!td) { if ((res = nand_memory_bbt(mtd, bd))) { @@ -1164,7 +1152,7 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) return -ENOMEM; } - /* Is the bbt at a given page ? */ + /* Is the bbt at a given page? */ if (td->options & NAND_BBT_ABSPAGE) { res = read_abs_bbts(mtd, buf, td, md); } else { @@ -1186,11 +1174,11 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) /** * nand_update_bbt - [NAND Interface] update bad block table(s) - * @mtd: MTD device structure - * @offs: the offset of the newly marked block + * @mtd: MTD device structure + * @offs: the offset of the newly marked block * - * The function updates the bad block table(s) -*/ + * The function updates the bad block table(s). + */ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) { struct nand_chip *this = mtd->priv; @@ -1214,7 +1202,7 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) writeops = md != NULL ? 0x03 : 0x01; - /* Do we have a bbt per chip ? */ + /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) { chip = (int)(offs >> this->chip_shift); chipsel = chip; @@ -1227,13 +1215,13 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) if (md) md->version[chip]++; - /* Write the bad block table to the device ? */ + /* Write the bad block table to the device? */ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { res = write_bbt(mtd, buf, td, md, chipsel); if (res < 0) goto out; } - /* Write the mirror bad block table to the device ? */ + /* Write the mirror bad block table to the device? */ if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) { res = write_bbt(mtd, buf, md, td, chipsel); } @@ -1243,8 +1231,10 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) return res; } -/* Define some generic bad / good block scan pattern which are used - * while scanning a device for factory marked good / bad blocks. */ +/* + * Define some generic bad / good block scan pattern which are used + * while scanning a device for factory marked good / bad blocks. + */ static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 }; @@ -1256,8 +1246,7 @@ static struct nand_bbt_descr agand_flashbased = { .pattern = scan_agand_pattern }; -/* Generic flash bbt decriptors -*/ +/* Generic flash bbt decriptors */ static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' }; static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' }; @@ -1303,13 +1292,12 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = { /** * nand_create_default_bbt_descr - [Internal] Creates a BBT descriptor structure - * @this: NAND chip to create descriptor for + * @this: NAND chip to create descriptor for * * This function allocates and initializes a nand_bbt_descr for BBM detection * based on the properties of "this". The new descriptor is stored in * this->badblock_pattern. Thus, this->badblock_pattern should be NULL when * passed to this function. - * */ static int nand_create_default_bbt_descr(struct nand_chip *this) { @@ -1334,22 +1322,20 @@ static int nand_create_default_bbt_descr(struct nand_chip *this) /** * nand_default_bbt - [NAND Interface] Select a default bad block table for the device - * @mtd: MTD device structure - * - * This function selects the default bad block table - * support for the device and calls the nand_scan_bbt function + * @mtd: MTD device structure * -*/ + * This function selects the default bad block table support for the device and + * calls the nand_scan_bbt function. + */ int nand_default_bbt(struct mtd_info *mtd) { struct nand_chip *this = mtd->priv; - /* Default for AG-AND. We must use a flash based - * bad block table as the devices have factory marked - * _good_ blocks. Erasing those blocks leads to loss - * of the good / bad information, so we _must_ store - * this information in a good / bad table during - * startup + /* + * Default for AG-AND. We must use a flash based bad block table as the + * devices have factory marked _good_ blocks. Erasing those blocks + * leads to loss of the good / bad information, so we _must_ store this + * information in a good / bad table during startup. */ if (this->options & NAND_IS_AND) { /* Use the default pattern descriptors */ @@ -1361,7 +1347,7 @@ int nand_default_bbt(struct mtd_info *mtd) return nand_scan_bbt(mtd, &agand_flashbased); } - /* Is a flash based bad block table requested ? */ + /* Is a flash based bad block table requested? */ if (this->bbt_options & NAND_BBT_USE_FLASH) { /* Use the default pattern descriptors */ if (!this->bbt_td) { @@ -1386,11 +1372,10 @@ int nand_default_bbt(struct mtd_info *mtd) /** * nand_isbad_bbt - [NAND Interface] Check if a block is bad - * @mtd: MTD device structure - * @offs: offset in the device - * @allowbbt: allow access to bad block table region - * -*/ + * @mtd: MTD device structure + * @offs: offset in the device + * @allowbbt: allow access to bad block table region + */ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) { struct nand_chip *this = mtd->priv; -- cgit v1.2.3 From bf5140817b2d65faac9b32fc9057a097044ac35b Mon Sep 17 00:00:00 2001 From: Peter Wippich Date: Mon, 6 Jun 2011 15:50:58 +0200 Subject: mtd: mtdchar: add missing initializer on raw write On writes in MODE_RAW the mtd_oob_ops struct is not sufficiently initialized which may cause nandwrite to fail. With this patch it is possible to write raw nand/oob data without additional ECC (either for testing or when some sectors need different oob layout e.g. bootloader) like nandwrite -n -r -o /dev/mtd0 Signed-off-by: Peter Wippich Cc: stable@kernel.org Tested-by: Ricard Wanderlof Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index f1af2228a1b1..49e20a497084 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -320,6 +320,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count ops.mode = MTD_OOB_RAW; ops.datbuf = kbuf; ops.oobbuf = NULL; + ops.ooboffs = 0; ops.len = len; ret = mtd->write_oob(mtd, *ppos, &ops); -- cgit v1.2.3 From 1a31368bf92ef2a7da3ba379672c405bd2751df9 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 6 Jun 2011 18:04:14 +0400 Subject: mtd: add a flags for partitions which should just leave smth. after them Add support for MTDPART_OFS_RETAIN: such partitions start at the current offset, take as much space as possible, but rain part->size bytes after the end of the partitions for other parts. Primarily this is intended for ts72xx arm platforms cleanup. Artem: tweaked the patch a bit Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdpart.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 3477e16be1c8..b73720502433 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -479,6 +479,19 @@ static struct mtd_part *allocate_partition(struct mtd_info *master, (unsigned long long)cur_offset, (unsigned long long)slave->offset); } } + if (slave->offset == MTDPART_OFS_RETAIN) { + slave->offset = cur_offset; + if (master->size - slave->offset >= slave->mtd.size) { + slave->mtd.size = master->size - slave->offset + - slave->mtd.size; + } else { + printk(KERN_ERR "mtd partition \"%s\" doesn't have enough space: %#llx < %#llx, disabled\n", + part->name, master->size - slave->offset, + slave->mtd.size); + /* register to preserve ordering */ + goto out_register; + } + } if (slave->mtd.size == MTDPART_SIZ_FULL) slave->mtd.size = master->size - slave->offset; -- cgit v1.2.3 From 0dc8626a17ab8dea9f1e34c7a5d667f5331b0ddc Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 6 Jun 2011 18:04:16 +0400 Subject: mtd: plat-nand: drop unused fields from platform_nand_data Drop now unused set_parts from struct platform_nand_data. Also, while we are at it, drop long unused priv field from platform_nand_data. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/plat_nand.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index ccdb16ec8143..746a723b4933 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -109,8 +109,6 @@ static int __devinit plat_nand_probe(struct platform_device *pdev) return 0; } } - if (pdata->chip.set_parts) - pdata->chip.set_parts(data->mtd.size, &pdata->chip); if (pdata->chip.partitions) { data->parts = pdata->chip.partitions; err = mtd_device_register(&data->mtd, data->parts, -- cgit v1.2.3 From bc27ede371b0931086e9cef72e30a58fdedc4709 Mon Sep 17 00:00:00 2001 From: Jamie Iles Date: Mon, 6 Jun 2011 17:11:34 +0100 Subject: mtd: denali: detect the number of banks before resetting NAND Commit c89eeda810f0ec4f0eee0206ebb79e476df9f83e (mtd: denali: detect the number of banks) introduced runtime detection of the number of banks. However, denali_nand_reset() uses uses denanli_nand_info::max_banks so we need to detect the maximum number of banks before doing the reset. Signed-off-by: Jamie Iles Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/denali.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index eebdfb5148e6..3984d488f9ab 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1346,6 +1346,7 @@ static void denali_hw_init(struct denali_nand_info *denali) * */ denali->bbtskipbytes = ioread32(denali->flash_reg + SPARE_AREA_SKIP_BYTES); + detect_max_banks(denali); denali_nand_reset(denali); iowrite32(0x0F, denali->flash_reg + RB_PIN_ENABLED); iowrite32(CHIP_EN_DONT_CARE__FLAG, @@ -1356,7 +1357,6 @@ static void denali_hw_init(struct denali_nand_info *denali) /* Should set value for these registers when init */ iowrite32(0, denali->flash_reg + TWO_ROW_ADDR_CYCLES); iowrite32(1, denali->flash_reg + ECC_ENABLE); - detect_max_banks(denali); denali_nand_timing_set(denali); denali_irq_init(denali); } -- cgit v1.2.3 From 0fab028b77d714ad302404b23306cf7adb885223 Mon Sep 17 00:00:00 2001 From: Lei Wen Date: Tue, 7 Jun 2011 03:01:06 -0700 Subject: mtd: pxa3xx_nand: fix nand detection issue When keep_config is set, the detection would goes different routine. That the driver would read out the setting which is set previously by bootloader. While most bootloader keep the irq mask as off, and current driver need all irq default open, keep_config behavior would lead to no irq at all. Signed-off-by: Lei Wen Tested-by: Daniel Mack Cc: stable@kernel.org [2.6.38+] Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index c7da3c8be9d6..9fde1399af91 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -813,7 +813,7 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512; /* set info fields needed to read id */ info->read_id_bytes = (info->page_size == 2048) ? 4 : 2; - info->reg_ndcr = ndcr; + info->reg_ndcr = ndcr & ~NDCR_INT_MASK; info->cmdset = &default_cmdset; info->ndtr0cs0 = nand_readl(info, NDTR0CS0); @@ -882,7 +882,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) struct pxa3xx_nand_info *info = mtd->priv; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; - struct nand_flash_dev pxa3xx_flash_ids[2] = { {NULL,}, {NULL,} }; + struct nand_flash_dev pxa3xx_flash_ids[2], *def = NULL; const struct pxa3xx_nand_flash *f = NULL; struct nand_chip *chip = mtd->priv; uint32_t id = -1; @@ -942,8 +942,10 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) pxa3xx_flash_ids[0].erasesize = f->page_size * f->page_per_block; if (f->flash_width == 16) pxa3xx_flash_ids[0].options = NAND_BUSWIDTH_16; + pxa3xx_flash_ids[1].name = NULL; + def = pxa3xx_flash_ids; KEEP_CONFIG: - if (nand_scan_ident(mtd, 1, pxa3xx_flash_ids)) + if (nand_scan_ident(mtd, 1, def)) return -ENODEV; /* calculate addressing information */ info->col_addr_cycles = (mtd->writesize >= 2048) ? 2 : 1; @@ -954,9 +956,9 @@ KEEP_CONFIG: info->row_addr_cycles = 2; mtd->name = mtd_names[0]; chip->ecc.mode = NAND_ECC_HW; - chip->ecc.size = f->page_size; + chip->ecc.size = info->page_size; - chip->options = (f->flash_width == 16) ? NAND_BUSWIDTH_16 : 0; + chip->options = (info->reg_ndcr & NDCR_DWIDTH_M) ? NAND_BUSWIDTH_16 : 0; chip->options |= NAND_NO_AUTOINCR; chip->options |= NAND_NO_READRDY; -- cgit v1.2.3 From 543e32d5ff165d0d68deedb0e3557478c7c36a4a Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Tue, 7 Jun 2011 03:01:07 -0700 Subject: mtd: pxa3xx_nand: Fix blank page ECC mismatch This bug was introduced in f8155a40 ("mtd: pxa3xx_nand: rework irq logic") and causes the PXA3xx NAND controller fail to operate with NAND flash that has empty pages. According to the comment in this block, the hardware controller will report a double-bit error for empty pages, which can and must be ignored. This patch restores the original behaviour of the driver. Signed-off-by: Daniel Mack Acked-by: Lei Wen Cc: Haojian Zhuang Cc: David Woodhouse Cc: stable@kernel.org [2.6.38+] Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 9fde1399af91..5c3af2f72a62 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -685,6 +685,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, * OOB, ignore such double bit errors */ if (is_buf_blank(buf, mtd->writesize)) + info->retcode = ERR_NONE; + else mtd->ecc_stats.failed++; } -- cgit v1.2.3 From ad274cecdbce18d13075bde3aabe5882802056de Mon Sep 17 00:00:00 2001 From: Artem Bityutskiy Date: Wed, 8 Jun 2011 11:42:27 +0300 Subject: mtd: document parse_mtd_partitions Add a kerneldoc comment for the 'parse_mtd_partitions()' function - its behavior has changed recently so it is good idea to have it documented. Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdpart.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index b73720502433..2b71ccb00d39 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -725,8 +725,30 @@ int deregister_mtd_parser(struct mtd_part_parser *p) } EXPORT_SYMBOL_GPL(deregister_mtd_parser); +/* + * Do not forget to update 'parse_mtd_partitions()' kerneldoc comment if you + * are changing this array! + */ static const char *default_mtd_part_types[] = {"cmdlinepart", NULL}; +/** + * parse_mtd_partitions - parse MTD partitions + * @master: the master partition (describes whole MTD device) + * @types: names of partition parsers to try or %NULL + * @pparts: array of partitions found is returned here + * @origin: MTD device start address (use %0 if unsure) + * + * This function tries to find partition on MTD device @master. It uses MTD + * partition parsers, specified in @types. However, if @types is %NULL, then + * the default list of parsers is used. The default list contains only the + * "cmdlinepart" parser ATM. + * + * This function may return: + * o a negative error code in case of failure + * o zero if no partitions were found + * o a positive number of found partitions, in which case on exit @pparts will + * point to an array containing this number of &struct mtd_info objects. + */ int parse_mtd_partitions(struct mtd_info *master, const char **types, struct mtd_partition **pparts, unsigned long origin) { -- cgit v1.2.3 From 96166056076af59d40e5b5aec5b09611c74cc911 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 7 Jun 2011 22:55:21 +0800 Subject: mtd: ndfc: fix a memory leak in ndfc_remove Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/ndfc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index cb66fd79f1fa..70c04ffa573c 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -283,6 +283,7 @@ static int __devexit ndfc_remove(struct platform_device *ofdev) struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev); nand_release(&ndfc->mtd); + kfree(ndfc->mtd.name); return 0; } -- cgit v1.2.3 From 0870066d7e6c85bbe37741137e4c4731501a98e0 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 7 Jun 2011 16:01:54 -0700 Subject: mtd: remove printk's for [kv][mz]alloc failures When a memory allocation fails, the kernel will print out a backtrace automatically. These print statements are unnecessary. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/cmdlinepart.c | 3 --- drivers/mtd/inftlcore.c | 4 +--- drivers/mtd/nand/nand_bbt.c | 13 +++---------- drivers/mtd/nand/rtc_from4.c | 1 - drivers/mtd/nftlcore.c | 4 +--- drivers/mtd/onenand/onenand_bbt.c | 4 +--- drivers/mtd/ssfdc.c | 10 ++-------- 7 files changed, 8 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index e790f38893b0..be0c121f2f1b 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -188,10 +188,7 @@ static struct mtd_partition * newpart(char *s, extra_mem_size; parts = kzalloc(alloc_size, GFP_KERNEL); if (!parts) - { - printk(KERN_ERR ERRP "out of memory\n"); return NULL; - } extra_mem = (unsigned char *)(parts + *num_parts); } /* enter this partition (offset will be calculated later if it is zero at this point) */ diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index d7592e67d048..c9a31e6faab2 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -67,10 +67,8 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) inftl = kzalloc(sizeof(*inftl), GFP_KERNEL); - if (!inftl) { - printk(KERN_WARNING "INFTL: Out of memory for data structures\n"); + if (!inftl) return; - } inftl->mbd.mtd = mtd; inftl->mbd.devnum = -1; diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index ba401662835e..8875d6db2455 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -1121,10 +1121,8 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) * table. */ this->bbt = kzalloc(len, GFP_KERNEL); - if (!this->bbt) { - printk(KERN_ERR "nand_scan_bbt: Out of memory\n"); + if (!this->bbt) return -ENOMEM; - } /* * If no primary table decriptor is given, scan the device to build a @@ -1146,7 +1144,6 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) len += (len >> this->page_shift) * mtd->oobsize; buf = vmalloc(len); if (!buf) { - printk(KERN_ERR "nand_bbt: Out of memory\n"); kfree(this->bbt); this->bbt = NULL; return -ENOMEM; @@ -1195,10 +1192,8 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) len = (1 << this->bbt_erase_shift); len += (len >> this->page_shift) * mtd->oobsize; buf = kmalloc(len, GFP_KERNEL); - if (!buf) { - printk(KERN_ERR "nand_update_bbt: Out of memory\n"); + if (!buf) return -ENOMEM; - } writeops = md != NULL ? 0x03 : 0x01; @@ -1307,10 +1302,8 @@ static int nand_create_default_bbt_descr(struct nand_chip *this) return -EINVAL; } bd = kzalloc(sizeof(*bd), GFP_KERNEL); - if (!bd) { - printk(KERN_ERR "nand_create_default_bbt_descr: Out of memory\n"); + if (!bd) return -ENOMEM; - } bd->options = this->bbt_options; bd->offs = this->badblockpos; bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1; diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c index c9f9127ff770..a07da2a3beee 100644 --- a/drivers/mtd/nand/rtc_from4.c +++ b/drivers/mtd/nand/rtc_from4.c @@ -444,7 +444,6 @@ static int rtc_from4_errstat(struct mtd_info *mtd, struct nand_chip *this, len = mtd->writesize; buf = kmalloc(len, GFP_KERNEL); if (!buf) { - printk(KERN_ERR "rtc_from4_errstat: Out of memory!\n"); er_stat = 1; goto out; } diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index b155666acfbe..f3b3239746c8 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -67,10 +67,8 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) nftl = kzalloc(sizeof(struct NFTLrecord), GFP_KERNEL); - if (!nftl) { - printk(KERN_WARNING "NFTL: out of memory for data structures\n"); + if (!nftl) return; - } nftl->mbd.mtd = mtd; nftl->mbd.devnum = -1; diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c index fc2c16a0fd1c..09a7d1fb511d 100644 --- a/drivers/mtd/onenand/onenand_bbt.c +++ b/drivers/mtd/onenand/onenand_bbt.c @@ -188,10 +188,8 @@ int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) len = this->chipsize >> (this->erase_shift + 2); /* Allocate memory (2bit per block) and clear the memory bad block table */ bbm->bbt = kzalloc(len, GFP_KERNEL); - if (!bbm->bbt) { - printk(KERN_ERR "onenand_scan_bbt: Out of memory\n"); + if (!bbm->bbt) return -ENOMEM; - } /* Set the bad block position */ bbm->badblockpos = ONENAND_BADBLOCK_POS; diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c index 5cd189793332..00d1405af50b 100644 --- a/drivers/mtd/ssfdc.c +++ b/drivers/mtd/ssfdc.c @@ -304,11 +304,8 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) return; ssfdc = kzalloc(sizeof(struct ssfdcr_record), GFP_KERNEL); - if (!ssfdc) { - printk(KERN_WARNING - "SSFDC_RO: out of memory for data structures\n"); + if (!ssfdc) return; - } ssfdc->mbd.mtd = mtd; ssfdc->mbd.devnum = -1; @@ -342,11 +339,8 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) /* Allocate logical block map */ ssfdc->logic_block_map = kmalloc(sizeof(ssfdc->logic_block_map[0]) * ssfdc->map_len, GFP_KERNEL); - if (!ssfdc->logic_block_map) { - printk(KERN_WARNING - "SSFDC_RO: out of memory for data structures\n"); + if (!ssfdc->logic_block_map) goto out_err; - } memset(ssfdc->logic_block_map, 0xff, sizeof(ssfdc->logic_block_map[0]) * ssfdc->map_len); -- cgit v1.2.3 From 3b36013cf9cc1a1da93ad6bb8f6d3b0221f67e42 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 8 Jun 2011 21:01:37 +0800 Subject: mtd: davinci_nand: remove redundant mtd_device_unregister mtd_device_unregister is done in nand_release(), thus no need to call it in nand_davinci_remove(). Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/davinci_nand.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 0c582ed98e43..70c92a527f6b 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -811,9 +811,6 @@ err_nomem: static int __exit nand_davinci_remove(struct platform_device *pdev) { struct davinci_nand_info *info = platform_get_drvdata(pdev); - int status; - - status = mtd_device_unregister(&info->mtd); spin_lock_irq(&davinci_nand_lock); if (info->chip.ecc.mode == NAND_ECC_HW_SYNDROME) -- cgit v1.2.3 From 3761a6ddacc83e5a6b4482d98fbf212805381486 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Wed, 8 Jun 2011 19:59:49 +0400 Subject: mtd: lart: cleanup: drop HAVE_PARTITIONS Consolidate knowledge about partitions in drivers/mtd/devices/lart.c. Drop all HAVE_PARTITIONS conditionals. Always use partitioning. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/lart.c | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c index 772a0ff89e0f..3a11ea628e58 100644 --- a/drivers/mtd/devices/lart.c +++ b/drivers/mtd/devices/lart.c @@ -34,9 +34,6 @@ /* debugging */ //#define LART_DEBUG -/* partition support */ -#define HAVE_PARTITIONS - #include #include #include @@ -44,9 +41,7 @@ #include #include #include -#ifdef HAVE_PARTITIONS #include -#endif #ifndef CONFIG_SA1100_LART #error This is for LART architecture only @@ -598,7 +593,6 @@ static struct mtd_erase_region_info erase_regions[] = { } }; -#ifdef HAVE_PARTITIONS static struct mtd_partition lart_partitions[] = { /* blob */ { @@ -619,7 +613,7 @@ static struct mtd_partition lart_partitions[] = { .size = INITRD_LEN, /* MTDPART_SIZ_FULL */ } }; -#endif +#define NUM_PARTITIONS ARRAY_SIZE(lart_partitions) static int __init lart_flash_init (void) { @@ -668,7 +662,6 @@ static int __init lart_flash_init (void) result,mtd.eraseregions[result].erasesize,mtd.eraseregions[result].erasesize / 1024, result,mtd.eraseregions[result].numblocks); -#ifdef HAVE_PARTITIONS printk ("\npartitions = %d\n", ARRAY_SIZE(lart_partitions)); for (result = 0; result < ARRAY_SIZE(lart_partitions); result++) @@ -681,25 +674,16 @@ static int __init lart_flash_init (void) result,lart_partitions[result].offset, result,lart_partitions[result].size,lart_partitions[result].size / 1024); #endif -#endif -#ifndef HAVE_PARTITIONS - result = mtd_device_register(&mtd, NULL, 0); -#else result = mtd_device_register(&mtd, lart_partitions, ARRAY_SIZE(lart_partitions)); -#endif return (result); } static void __exit lart_flash_exit (void) { -#ifndef HAVE_PARTITIONS - mtd_device_unregister(&mtd); -#else mtd_device_unregister(&mtd); -#endif } module_init (lart_flash_init); -- cgit v1.2.3 From 1c4c215cbdcbfd08183d82b2953591cd00564422 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Fri, 25 Mar 2011 22:26:25 +0300 Subject: mtd: add new API for handling MTD registration Lots (nearly all) mtd drivers contain nearly the similar code that calls parse_mtd_partitions, provides some platform-default values, if parsing fails, and registers mtd device. This is an aim to provide single implementation of this scenario: mtd_device_parse_register() which will handle all this parsing and defaults. Artem: amended comments Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdcore.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index c510aff289a8..13267477e4e9 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -451,6 +451,64 @@ int mtd_device_register(struct mtd_info *master, } EXPORT_SYMBOL_GPL(mtd_device_register); +/** + * mtd_device_parse_register - parse partitions and register an MTD device. + * + * @mtd: the MTD device to register + * @types: the list of MTD partition probes to try, see + * 'parse_mtd_partitions()' for more information + * @origin: start address of MTD device, %0 unless you are sure you need this. + * @parts: fallback partition information to register, if parsing fails; + * only valid if %nr_parts > %0 + * @nr_parts: the number of partitions in parts, if zero then the full + * MTD device is registered if no partition info is found + * + * This function aggregates MTD partitions parsing (done by + * 'parse_mtd_partitions()') and MTD device and partitions registering. It + * basically follows the most common pattern found in many MTD drivers: + * + * * It first tries to probe partitions on MTD device @mtd using parsers + * specified in @types (if @types is %NULL, then the default list of parsers + * is used, see 'parse_mtd_partitions()' for more information). If none are + * found this functions tries to fallback to information specified in + * @parts/@nr_parts. + * * If any parititioning info was found, this function registers the found + * partitions. + * * If no partitions were found this function just registers the MTD device + * @mtd and exits. + * + * Returns zero in case of success and a negative error code in case of failure. + */ +int mtd_device_parse_register(struct mtd_info *mtd, const char **types, + unsigned long origin, + const struct mtd_partition *parts, + int nr_parts) +{ + int err; + struct mtd_partition *real_parts; + + err = parse_mtd_partitions(mtd, types, &real_parts, origin); + if (err <= 0 && nr_parts) { + real_parts = kmemdup(parts, sizeof(*parts) * nr_parts, + GFP_KERNEL); + err = nr_parts; + if (!parts) + err = -ENOMEM; + } + + if (err > 0) { + err = add_mtd_partitions(mtd, real_parts, err); + kfree(real_parts); + } else if (err == 0) { + err = add_mtd_device(mtd); + if (err == 1) + err = -ENODEV; + } + + return err; +} +EXPORT_SYMBOL_GPL(mtd_device_parse_register); + /** * mtd_device_unregister - unregister an existing MTD device. * -- cgit v1.2.3 From 81939afce261694f8e91a71e2cc7c817c13c57fd Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:23 +0400 Subject: mtd: sst25l.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/sst25l.c | 33 ++++----------------------------- 1 file changed, 4 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index 52eb92edde93..44a8b408ed7b 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -52,8 +52,6 @@ struct sst25l_flash { struct spi_device *spi; struct mutex lock; struct mtd_info mtd; - - int partitioned; }; struct flash_info { @@ -381,8 +379,6 @@ static int __devinit sst25l_probe(struct spi_device *spi) struct sst25l_flash *flash; struct flash_platform_data *data; int ret, i; - struct mtd_partition *parts = NULL; - int nr_parts = 0; flash_info = sst25l_match_device(spi); if (!flash_info) @@ -423,31 +419,10 @@ static int __devinit sst25l_probe(struct spi_device *spi) flash->mtd.numeraseregions); - nr_parts = parse_mtd_partitions(&flash->mtd, NULL, &parts, 0); - - if (nr_parts <= 0 && data && data->parts) { - parts = data->parts; - nr_parts = data->nr_parts; - } - - if (nr_parts > 0) { - for (i = 0; i < nr_parts; i++) { - DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = " - "{.name = %s, .offset = 0x%llx, " - ".size = 0x%llx (%lldKiB) }\n", - i, parts[i].name, - (long long)parts[i].offset, - (long long)parts[i].size, - (long long)(parts[i].size >> 10)); - } - - flash->partitioned = 1; - return mtd_device_register(&flash->mtd, parts, - nr_parts); - } - - ret = mtd_device_register(&flash->mtd, NULL, 0); - if (ret == 1) { + ret = mtd_device_parse_register(&flash->mtd, NULL, 0, + data ? data->parts : NULL, + data ? data->nr_parts : 0); + if (ret) { kfree(flash); dev_set_drvdata(&spi->dev, NULL); return -ENODEV; -- cgit v1.2.3 From cd3aafd0bd3ad383fd43196bc8dcac2edfec95c2 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:30 +0400 Subject: mtd: bfin-async-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/bfin-async-flash.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c index 67815eed2f00..6d6b2b5674ee 100644 --- a/drivers/mtd/maps/bfin-async-flash.c +++ b/drivers/mtd/maps/bfin-async-flash.c @@ -41,7 +41,6 @@ struct async_state { uint32_t flash_ambctl0, flash_ambctl1; uint32_t save_ambctl0, save_ambctl1; unsigned long irq_flags; - struct mtd_partition *parts; }; static void switch_to_flash(struct async_state *state) @@ -165,18 +164,8 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev) return -ENXIO; } - ret = parse_mtd_partitions(state->mtd, part_probe_types, &pdata->parts, 0); - if (ret > 0) { - pr_devinit(KERN_NOTICE DRIVER_NAME ": Using commandline partition definition\n"); - mtd_device_register(state->mtd, pdata->parts, ret); - state->parts = pdata->parts; - } else if (pdata->nr_parts) { - pr_devinit(KERN_NOTICE DRIVER_NAME ": Using board partition definition\n"); - mtd_device_register(state->mtd, pdata->parts, pdata->nr_parts); - } else { - pr_devinit(KERN_NOTICE DRIVER_NAME ": no partition info available, registering whole flash at once\n"); - mtd_device_register(state->mtd, NULL, 0); - } + mtd_device_parse_register(state->mtd, part_probe_types, 0, + pdata->parts, pdata->nr_parts); platform_set_drvdata(pdev, state); @@ -188,7 +177,6 @@ static int __devexit bfin_flash_remove(struct platform_device *pdev) struct async_state *state = platform_get_drvdata(pdev); gpio_free(state->enet_flash_pin); mtd_device_unregister(state->mtd); - kfree(state->parts); map_destroy(state->mtd); kfree(state); return 0; -- cgit v1.2.3 From 3d0e9db409909a0259fa005fee81a7c639bd645a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:35 +0400 Subject: mtd: dc21285.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/dc21285.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c index 7a9e1989c977..f43b365b848c 100644 --- a/drivers/mtd/maps/dc21285.c +++ b/drivers/mtd/maps/dc21285.c @@ -145,14 +145,10 @@ static struct map_info dc21285_map = { /* Partition stuff */ -static struct mtd_partition *dc21285_parts; static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; static int __init init_dc21285(void) { - - int nrparts; - /* Determine bankwidth */ switch (*CSR_SA110_CNTL & (3<<14)) { case SA110_CNTL_ROMWIDTH_8: @@ -200,8 +196,7 @@ static int __init init_dc21285(void) dc21285_mtd->owner = THIS_MODULE; - nrparts = parse_mtd_partitions(dc21285_mtd, probes, &dc21285_parts, 0); - mtd_device_register(dc21285_mtd, dc21285_parts, nrparts); + mtd_device_parse_register(dc21285_mtd, probes, 0, NULL, 0); if(machine_is_ebsa285()) { /* @@ -224,8 +219,6 @@ static int __init init_dc21285(void) static void __exit cleanup_dc21285(void) { mtd_device_unregister(dc21285_mtd); - if (dc21285_parts) - kfree(dc21285_parts); map_destroy(dc21285_mtd); iounmap(dc21285_map.virt); } -- cgit v1.2.3 From 534e4928ad672a319c29b9f0c0593ad16766de53 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:41 +0400 Subject: mtd: gpio-addr-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/gpio-addr-flash.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c index 7568c5f8b8ae..1ec66f031c51 100644 --- a/drivers/mtd/maps/gpio-addr-flash.c +++ b/drivers/mtd/maps/gpio-addr-flash.c @@ -187,7 +187,6 @@ static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL }; */ static int __devinit gpio_flash_probe(struct platform_device *pdev) { - int nr_parts; size_t i, arr_size; struct physmap_flash_data *pdata; struct resource *memory; @@ -252,20 +251,9 @@ static int __devinit gpio_flash_probe(struct platform_device *pdev) return -ENXIO; } - nr_parts = parse_mtd_partitions(state->mtd, part_probe_types, - &pdata->parts, 0); - if (nr_parts > 0) { - pr_devinit(KERN_NOTICE PFX "Using commandline partition definition\n"); - kfree(pdata->parts); - } else if (pdata->nr_parts) { - pr_devinit(KERN_NOTICE PFX "Using board partition definition\n"); - nr_parts = pdata->nr_parts; - } else { - pr_devinit(KERN_NOTICE PFX "no partition info available, registering whole flash at once\n"); - nr_parts = 0; - } - mtd_device_register(state->mtd, pdata->parts, nr_parts); + mtd_device_parse_register(state->mtd, part_probe_types, 0, + pdata->parts, pdata->nr_parts); return 0; } -- cgit v1.2.3 From 8db2a08ee469c1fcad5354c1144a673d88434424 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:42 +0400 Subject: mtd: h720x-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/h720x-flash.c | 21 ++------------------- 1 file changed, 2 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c index f331a2c94271..49c14187fc66 100644 --- a/drivers/mtd/maps/h720x-flash.c +++ b/drivers/mtd/maps/h720x-flash.c @@ -58,16 +58,11 @@ static struct mtd_partition h720x_partitions[] = { #define NUM_PARTITIONS ARRAY_SIZE(h720x_partitions) -static int nr_mtd_parts; -static struct mtd_partition *mtd_parts; /* * Initialize FLASH support */ static int __init h720x_mtd_init(void) { - - char *part_type = NULL; - h720x_map.virt = ioremap(h720x_map.phys, h720x_map.size); if (!h720x_map.virt) { @@ -90,16 +85,8 @@ static int __init h720x_mtd_init(void) if (mymtd) { mymtd->owner = THIS_MODULE; - nr_mtd_parts = parse_mtd_partitions(mymtd, NULL, &mtd_parts, 0); - if (nr_mtd_parts > 0) - part_type = "command line"; - if (nr_mtd_parts <= 0) { - mtd_parts = h720x_partitions; - nr_mtd_parts = NUM_PARTITIONS; - part_type = "builtin"; - } - printk(KERN_INFO "Using %s partition table\n", part_type); - mtd_device_register(mymtd, mtd_parts, nr_mtd_parts); + mtd_device_parse_register(mymtd, NULL, 0, + h720x_partitions, NUM_PARTITIONS); return 0; } @@ -118,10 +105,6 @@ static void __exit h720x_mtd_cleanup(void) map_destroy(mymtd); } - /* Free partition info, if commandline partition was used */ - if (mtd_parts && (mtd_parts != h720x_partitions)) - kfree (mtd_parts); - if (h720x_map.virt) { iounmap((void *)h720x_map.virt); h720x_map.virt = 0; -- cgit v1.2.3 From 5003403b87283a5e304e0248918ef678dbd24d59 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:44 +0400 Subject: mtd: impa7.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Artem: rename static_partitions to make lines shorter and align the way this driver prefers. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/impa7.c | 27 ++++----------------------- 1 file changed, 4 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c index 2d45a489622e..f47aedb24366 100644 --- a/drivers/mtd/maps/impa7.c +++ b/drivers/mtd/maps/impa7.c @@ -49,7 +49,7 @@ static struct map_info impa7_map[NUM_FLASHBANKS] = { /* * MTD partitioning stuff */ -static struct mtd_partition static_partitions[] = +static struct mtd_partition partitions[] = { { .name = "FileSystem", @@ -58,15 +58,10 @@ static struct mtd_partition static_partitions[] = }, }; -static int mtd_parts_nb[NUM_FLASHBANKS]; -static struct mtd_partition *mtd_parts[NUM_FLASHBANKS]; - - static int __init init_impa7(void) { static const char *rom_probe_types[] = PROBETYPES; const char **type; - const char *part_type = 0; int i; static struct { u_long addr; u_long size; } pt[NUM_FLASHBANKS] = { { WINDOW_ADDR0, WINDOW_SIZE0 }, @@ -96,23 +91,9 @@ static int __init init_impa7(void) if (impa7_mtd[i]) { impa7_mtd[i]->owner = THIS_MODULE; devicesfound++; - mtd_parts_nb[i] = parse_mtd_partitions(impa7_mtd[i], - NULL, - &mtd_parts[i], - 0); - if (mtd_parts_nb[i] > 0) { - part_type = "command line"; - } else { - mtd_parts[i] = static_partitions; - mtd_parts_nb[i] = ARRAY_SIZE(static_partitions); - part_type = "static"; - } - - printk(KERN_NOTICE MSG_PREFIX - "using %s partition definition\n", - part_type); - mtd_device_register(impa7_mtd[i], - mtd_parts[i], mtd_parts_nb[i]); + mtd_device_parse_register(impa7_mtd[i], NULL, 0, + partitions, + ARRAY_SIZE(partitions)); } else iounmap((void *)impa7_map[i].virt); -- cgit v1.2.3 From ba6bead4469bec8a66f1764106f23890b2a267e2 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:45 +0400 Subject: mtd: intel_vr_nor.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/intel_vr_nor.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c index fd612c7ec1f6..08c239604ee4 100644 --- a/drivers/mtd/maps/intel_vr_nor.c +++ b/drivers/mtd/maps/intel_vr_nor.c @@ -44,7 +44,6 @@ struct vr_nor_mtd { void __iomem *csr_base; struct map_info map; struct mtd_info *info; - int nr_parts; struct pci_dev *dev; }; @@ -71,12 +70,9 @@ static void __devexit vr_nor_destroy_partitions(struct vr_nor_mtd *p) static int __devinit vr_nor_init_partitions(struct vr_nor_mtd *p) { - struct mtd_partition *parts; - /* register the flash bank */ /* partition the flash bank */ - p->nr_parts = parse_mtd_partitions(p->info, NULL, &parts, 0); - return mtd_device_register(p->info, parts, p->nr_parts); + return mtd_device_parse_register(p->info, NULL, 0, NULL, 0); } static void __devexit vr_nor_destroy_mtd_setup(struct vr_nor_mtd *p) -- cgit v1.2.3 From 200b8777ce270b491affb2bd81192f78f2d46213 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:46 +0400 Subject: mtd: ixp2000.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/ixp2000.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c index 1594a802631d..437fcd2f352f 100644 --- a/drivers/mtd/maps/ixp2000.c +++ b/drivers/mtd/maps/ixp2000.c @@ -38,7 +38,6 @@ struct ixp2000_flash_info { struct mtd_info *mtd; struct map_info map; - struct mtd_partition *partitions; struct resource *res; }; @@ -125,8 +124,6 @@ static int ixp2000_flash_remove(struct platform_device *dev) if (info->map.map_priv_1) iounmap((void *) info->map.map_priv_1); - kfree(info->partitions); - if (info->res) { release_resource(info->res); kfree(info->res); @@ -229,13 +226,7 @@ static int ixp2000_flash_probe(struct platform_device *dev) } info->mtd->owner = THIS_MODULE; - err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0); - if (err > 0) { - err = mtd_device_register(info->mtd, info->partitions, err); - if(err) - dev_err(&dev->dev, "Could not parse partitions\n"); - } - + err = mtd_device_parse_register(info->mtd, probes, 0, NULL, 0); if (err) goto Error; -- cgit v1.2.3 From bc413f11ddf2c692cc533f474d28a154abe4541f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:47 +0400 Subject: mtd: ixp4xx.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/ixp4xx.c | 29 ++++------------------------- 1 file changed, 4 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c index 155b21942f47..30409015a3de 100644 --- a/drivers/mtd/maps/ixp4xx.c +++ b/drivers/mtd/maps/ixp4xx.c @@ -145,7 +145,6 @@ static void ixp4xx_write16(struct map_info *map, map_word d, unsigned long adr) struct ixp4xx_flash_info { struct mtd_info *mtd; struct map_info map; - struct mtd_partition *partitions; struct resource *res; }; @@ -168,8 +167,6 @@ static int ixp4xx_flash_remove(struct platform_device *dev) if (info->map.virt) iounmap(info->map.virt); - kfree(info->partitions); - if (info->res) { release_resource(info->res); kfree(info->res); @@ -185,8 +182,6 @@ static int ixp4xx_flash_probe(struct platform_device *dev) { struct flash_platform_data *plat = dev->dev.platform_data; struct ixp4xx_flash_info *info; - const char *part_type = NULL; - int nr_parts = 0; int err = -1; if (!plat) @@ -252,28 +247,12 @@ static int ixp4xx_flash_probe(struct platform_device *dev) /* Use the fast version */ info->map.write = ixp4xx_write16; - nr_parts = parse_mtd_partitions(info->mtd, probes, &info->partitions, - dev->resource->start); - if (nr_parts > 0) { - part_type = "dynamic"; - } else { - info->partitions = plat->parts; - nr_parts = plat->nr_parts; - part_type = "static"; - } - if (nr_parts == 0) - printk(KERN_NOTICE "IXP4xx flash: no partition info " - "available, registering whole flash\n"); - else - printk(KERN_NOTICE "IXP4xx flash: using %s partition " - "definition\n", part_type); - - err = mtd_device_register(info->mtd, info->partitions, nr_parts); - if (err) + err = mtd_device_parse_register(info->mtd, probes, dev->resource->start, + plat->parts, plat->nr_parts); + if (err) { printk(KERN_ERR "Could not parse partitions\n"); - - if (err) goto Error; + } return 0; -- cgit v1.2.3 From ca97dec2ab5c87e9fbdf7e882e1820004a3966fa Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:49 +0400 Subject: mtd: lantiq-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/lantiq-flash.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c index 57ea3fe2296f..f7507844c556 100644 --- a/drivers/mtd/maps/lantiq-flash.c +++ b/drivers/mtd/maps/lantiq-flash.c @@ -112,9 +112,7 @@ ltq_mtd_probe(struct platform_device *pdev) { struct physmap_flash_data *ltq_mtd_data = dev_get_platdata(&pdev->dev); struct ltq_mtd *ltq_mtd; - struct mtd_partition *parts; struct resource *res; - int nr_parts = 0; struct cfi_private *cfi; int err; @@ -170,16 +168,8 @@ ltq_mtd_probe(struct platform_device *pdev) cfi->addr_unlock1 ^= 1; cfi->addr_unlock2 ^= 1; - nr_parts = parse_mtd_partitions(ltq_mtd->mtd, NULL, &parts, 0); - if (nr_parts > 0) { - dev_info(&pdev->dev, - "using %d partitions from cmdline", nr_parts); - } else { - nr_parts = ltq_mtd_data->nr_parts; - parts = ltq_mtd_data->parts; - } - - err = add_mtd_partitions(ltq_mtd->mtd, parts, nr_parts); + err = mtd_device_parse_register(ltq_mtd->mtd, NULL, 0, + ltq_mtd_data->parts, ltq_mtd_data->nr_parts); if (err) { dev_err(&pdev->dev, "failed to add partitions\n"); goto err_destroy; -- cgit v1.2.3 From 6e6e44c8bf73cdbd3600f18cb195fc965c0f1b45 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:50 +0400 Subject: mtd: latch-addr-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/latch-addr-flash.c | 21 ++------------------- 1 file changed, 2 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c index 09cf704ea02e..119baa7d7477 100644 --- a/drivers/mtd/maps/latch-addr-flash.c +++ b/drivers/mtd/maps/latch-addr-flash.c @@ -33,9 +33,6 @@ struct latch_addr_flash_info { /* cache; could be found out of res */ unsigned long win_mask; - int nr_parts; - struct mtd_partition *parts; - spinlock_t lock; }; @@ -110,8 +107,6 @@ static int latch_addr_flash_remove(struct platform_device *dev) latch_addr_data = dev->dev.platform_data; if (info->mtd != NULL) { - if (info->nr_parts) - kfree(info->parts); mtd_device_unregister(info->mtd); map_destroy(info->mtd); } @@ -204,20 +199,8 @@ static int __devinit latch_addr_flash_probe(struct platform_device *dev) } info->mtd->owner = THIS_MODULE; - err = parse_mtd_partitions(info->mtd, NULL, &info->parts, 0); - if (err > 0) { - mtd_device_register(info->mtd, info->parts, err); - return 0; - } - if (latch_addr_data->nr_parts) { - pr_notice("Using latch-addr-flash partition information\n"); - mtd_device_register(info->mtd, - latch_addr_data->parts, - latch_addr_data->nr_parts); - return 0; - } - - mtd_device_register(info->mtd, NULL, 0); + mtd_device_parse_register(info->mtd, NULL, 0, + latch_addr_data->parts, latch_addr_data->nr_parts); return 0; iounmap: -- cgit v1.2.3 From d45fd1218897b05dfa977a49f72e6f7bdc3e2471 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:58 +0400 Subject: mtd: physmap.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/physmap.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c index 2174d103297e..66e8200079c2 100644 --- a/drivers/mtd/maps/physmap.c +++ b/drivers/mtd/maps/physmap.c @@ -27,8 +27,6 @@ struct physmap_flash_info { struct mtd_info *mtd[MAX_RESOURCES]; struct mtd_info *cmtd; struct map_info map[MAX_RESOURCES]; - int nr_parts; - struct mtd_partition *parts; }; static int physmap_flash_remove(struct platform_device *dev) @@ -46,8 +44,6 @@ static int physmap_flash_remove(struct platform_device *dev) if (info->cmtd) { mtd_device_unregister(info->cmtd); - if (info->nr_parts) - kfree(info->parts); if (info->cmtd != info->mtd[0]) mtd_concat_destroy(info->cmtd); } @@ -175,23 +171,8 @@ static int physmap_flash_probe(struct platform_device *dev) if (err) goto err_out; - err = parse_mtd_partitions(info->cmtd, part_probe_types, - &info->parts, 0); - if (err > 0) { - mtd_device_register(info->cmtd, info->parts, err); - info->nr_parts = err; - return 0; - } - - if (physmap_data->nr_parts) { - printk(KERN_NOTICE "Using physmap partition information\n"); - mtd_device_register(info->cmtd, physmap_data->parts, - physmap_data->nr_parts); - return 0; - } - - mtd_device_register(info->cmtd, NULL, 0); - + mtd_device_parse_register(info->cmtd, part_probe_types, 0, + physmap_data->parts, physmap_data->nr_parts); return 0; err_out: -- cgit v1.2.3 From 74fb3ab9330ee4dd1a3ddf19cd0f3ef1202376d9 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:01 +0400 Subject: mtd: plat-ram.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/plat-ram.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c index 9ca1eccba4bc..94f553489725 100644 --- a/drivers/mtd/maps/plat-ram.c +++ b/drivers/mtd/maps/plat-ram.c @@ -44,8 +44,6 @@ struct platram_info { struct device *dev; struct mtd_info *mtd; struct map_info map; - struct mtd_partition *partitions; - bool free_partitions; struct resource *area; struct platdata_mtd_ram *pdata; }; @@ -95,10 +93,6 @@ static int platram_remove(struct platform_device *pdev) if (info->mtd) { mtd_device_unregister(info->mtd); - if (info->partitions) { - if (info->free_partitions) - kfree(info->partitions); - } map_destroy(info->mtd); } @@ -228,21 +222,8 @@ static int platram_probe(struct platform_device *pdev) /* check to see if there are any available partitions, or wether * to add this device whole */ - if (!pdata->nr_partitions) { - /* try to probe using the supplied probe type */ - if (pdata->probes) { - err = parse_mtd_partitions(info->mtd, pdata->probes, - &info->partitions, 0); - info->free_partitions = 1; - if (err > 0) - err = mtd_device_register(info->mtd, - info->partitions, err); - } - } - /* use the static mapping */ - else - err = mtd_device_register(info->mtd, pdata->partitions, - pdata->nr_partitions); + err = mtd_device_parse_register(info->mtd, pdata->probes, 0, + pdata->partitions, pdata->nr_partitions); if (!err) dev_info(&pdev->dev, "registered mtd device\n"); -- cgit v1.2.3 From 6fcdc92fce81eadcee262a7a66bf3207314fab87 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:03 +0400 Subject: mtd: pxa2xx-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/pxa2xx-flash.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c index 7ae137d4b998..411a17df9fc1 100644 --- a/drivers/mtd/maps/pxa2xx-flash.c +++ b/drivers/mtd/maps/pxa2xx-flash.c @@ -41,8 +41,6 @@ static void pxa2xx_map_inval_cache(struct map_info *map, unsigned long from, } struct pxa2xx_flash_info { - struct mtd_partition *parts; - int nr_parts; struct mtd_info *mtd; struct map_info map; }; @@ -55,9 +53,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev) { struct flash_platform_data *flash = pdev->dev.platform_data; struct pxa2xx_flash_info *info; - struct mtd_partition *parts; struct resource *res; - int ret = 0; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) @@ -71,8 +67,6 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev) info->map.bankwidth = flash->width; info->map.phys = res->start; info->map.size = resource_size(res); - info->parts = flash->parts; - info->nr_parts = flash->nr_parts; info->map.virt = ioremap(info->map.phys, info->map.size); if (!info->map.virt) { @@ -104,18 +98,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev) } info->mtd->owner = THIS_MODULE; - ret = parse_mtd_partitions(info->mtd, probes, &parts, 0); - - if (ret > 0) { - info->nr_parts = ret; - info->parts = parts; - } - - if (!info->nr_parts) - printk("Registering %s as whole device\n", - info->map.name); - - mtd_device_register(info->mtd, info->parts, info->nr_parts); + mtd_device_parse_register(info->mtd, probes, 0, NULL, 0); platform_set_drvdata(pdev, info); return 0; @@ -133,7 +116,6 @@ static int __devexit pxa2xx_flash_remove(struct platform_device *dev) iounmap(info->map.virt); if (info->map.cached) iounmap(info->map.cached); - kfree(info->parts); kfree(info); return 0; } -- cgit v1.2.3 From c77d8092c761bc0ee219fd869e6cde876e2b7aa4 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:04 +0400 Subject: mtd: rbtx4939-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/rbtx4939-flash.c | 21 ++++----------------- 1 file changed, 4 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/rbtx4939-flash.c b/drivers/mtd/maps/rbtx4939-flash.c index 5d15b6b32265..0237f197fd12 100644 --- a/drivers/mtd/maps/rbtx4939-flash.c +++ b/drivers/mtd/maps/rbtx4939-flash.c @@ -25,8 +25,6 @@ struct rbtx4939_flash_info { struct mtd_info *mtd; struct map_info map; - int nr_parts; - struct mtd_partition *parts; }; static int rbtx4939_flash_remove(struct platform_device *dev) @@ -41,8 +39,6 @@ static int rbtx4939_flash_remove(struct platform_device *dev) if (info->mtd) { struct rbtx4939_flash_data *pdata = dev->dev.platform_data; - if (info->nr_parts) - kfree(info->parts); mtd_device_unregister(info->mtd); map_destroy(info->mtd); } @@ -106,20 +102,11 @@ static int rbtx4939_flash_probe(struct platform_device *dev) info->mtd->owner = THIS_MODULE; if (err) goto err_out; - err = parse_mtd_partitions(info->mtd, NULL, &info->parts, 0); - if (err > 0) { - mtd_device_register(info->mtd, info->parts, err); - info->nr_parts = err; - return 0; - } + err = mtd_device_parse_register(info->mtd, NULL, 0, + pdata->parts, pdata->nr_parts); - if (pdata->nr_parts) { - pr_notice("Using rbtx4939 partition information\n"); - mtd_device_register(info->mtd, pdata->parts, pdata->nr_parts); - return 0; - } - - mtd_device_register(info->mtd, NULL, 0); + if (err) + goto err_out; return 0; err_out: -- cgit v1.2.3 From 769dc431869a021b85feca607c7800c59822de9c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:06 +0400 Subject: mtd: sa1100-flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/sa1100-flash.c | 30 +++--------------------------- 1 file changed, 3 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c index a9b5e0e5c4c5..fa9c0a9670cd 100644 --- a/drivers/mtd/maps/sa1100-flash.c +++ b/drivers/mtd/maps/sa1100-flash.c @@ -131,10 +131,8 @@ struct sa_subdev_info { }; struct sa_info { - struct mtd_partition *parts; struct mtd_info *mtd; int num_subdev; - unsigned int nr_parts; struct sa_subdev_info subdev[0]; }; @@ -231,8 +229,6 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla mtd_concat_destroy(info->mtd); } - kfree(info->parts); - for (i = info->num_subdev - 1; i >= 0; i--) sa1100_destroy_subdev(&info->subdev[i]); kfree(info); @@ -341,10 +337,8 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int __devinit sa1100_mtd_probe(struct platform_device *pdev) { struct flash_platform_data *plat = pdev->dev.platform_data; - struct mtd_partition *parts; - const char *part_type = NULL; struct sa_info *info; - int err, nr_parts = 0; + int err; if (!plat) return -ENODEV; @@ -358,26 +352,8 @@ static int __devinit sa1100_mtd_probe(struct platform_device *pdev) /* * Partition selection stuff. */ - nr_parts = parse_mtd_partitions(info->mtd, part_probes, &parts, 0); - if (nr_parts > 0) { - info->parts = parts; - part_type = "dynamic"; - } else { - parts = plat->parts; - nr_parts = plat->nr_parts; - part_type = "static"; - } - - if (nr_parts == 0) - printk(KERN_NOTICE "SA1100 flash: no partition info " - "available, registering whole flash\n"); - else - printk(KERN_NOTICE "SA1100 flash: using %s partition " - "definition\n", part_type); - - mtd_device_register(info->mtd, parts, nr_parts); - - info->nr_parts = nr_parts; + mtd_device_parse_register(info->mtd, part_probes, 0, + plat->parts, plat->nr_parts); platform_set_drvdata(pdev, info); err = 0; -- cgit v1.2.3 From 7029eef8ba6ebf96c18c4b3138c35fcd1342a80a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:12 +0400 Subject: mtd: solutionengine.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/solutionengine.c | 30 +++++++----------------------- 1 file changed, 7 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/solutionengine.c b/drivers/mtd/maps/solutionengine.c index cbf6bade9354..496c40704aff 100644 --- a/drivers/mtd/maps/solutionengine.c +++ b/drivers/mtd/maps/solutionengine.c @@ -19,8 +19,6 @@ static struct mtd_info *flash_mtd; static struct mtd_info *eprom_mtd; -static struct mtd_partition *parsed_parts; - struct map_info soleng_eprom_map = { .name = "Solution Engine EPROM", .size = 0x400000, @@ -51,12 +49,14 @@ static struct mtd_partition superh_se_partitions[] = { .size = MTDPART_SIZ_FULL, } }; +#define NUM_PARTITIONS ARRAY_SIZE(superh_se_partitions) +#else +#define superh_se_partitions NULL +#define NUM_PARTITIONS 0 #endif /* CONFIG_MTD_SUPERH_RESERVE */ static int __init init_soleng_maps(void) { - int nr_parts = 0; - /* First probe at offset 0 */ soleng_flash_map.phys = 0; soleng_flash_map.virt = (void __iomem *)P2SEGADDR(0); @@ -92,21 +92,8 @@ static int __init init_soleng_maps(void) mtd_device_register(eprom_mtd, NULL, 0); } - nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0); - -#ifdef CONFIG_MTD_SUPERH_RESERVE - if (nr_parts <= 0) { - printk(KERN_NOTICE "Using configured partition at 0x%08x.\n", - CONFIG_MTD_SUPERH_RESERVE); - parsed_parts = superh_se_partitions; - nr_parts = sizeof(superh_se_partitions)/sizeof(*parsed_parts); - } -#endif /* CONFIG_MTD_SUPERH_RESERVE */ - - if (nr_parts > 0) - mtd_device_register(flash_mtd, parsed_parts, nr_parts); - else - mtd_device_register(flash_mtd, NULL, 0); + mtd_device_parse_register(flash_mtd, probes, 0, + superh_se_partitions, NUM_PARTITIONS); return 0; } @@ -118,10 +105,7 @@ static void __exit cleanup_soleng_maps(void) map_destroy(eprom_mtd); } - if (parsed_parts) - mtd_device_unregister(flash_mtd); - else - mtd_device_unregister(flash_mtd); + mtd_device_unregister(flash_mtd); map_destroy(flash_mtd); } -- cgit v1.2.3 From e062e2f52fed5bcf65b3228e991771a4a6030d85 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:20 +0400 Subject: mtd: wr_sbc82xx_flash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Artem: some tweaks, split one very long line while on it. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/wr_sbc82xx_flash.c | 33 +++++++++++++-------------------- 1 file changed, 13 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c index 901ce968efae..aa7e0cb2893c 100644 --- a/drivers/mtd/maps/wr_sbc82xx_flash.c +++ b/drivers/mtd/maps/wr_sbc82xx_flash.c @@ -20,7 +20,6 @@ #include static struct mtd_info *sbcmtd[3]; -static struct mtd_partition *sbcmtd_parts[3]; struct map_info sbc82xx_flash_map[3] = { {.name = "Boot flash"}, @@ -101,6 +100,7 @@ static int __init init_sbc82xx_flash(void) for (i=0; i<3; i++) { int8_t flashcs[3] = { 0, 6, 1 }; int nr_parts; + struct mtd_partition *defparts; printk(KERN_NOTICE "PowerQUICC II %s (%ld MiB on CS%d", sbc82xx_flash_map[i].name, @@ -113,7 +113,8 @@ static int __init init_sbc82xx_flash(void) } printk(" at %08lx)\n", sbc82xx_flash_map[i].phys); - sbc82xx_flash_map[i].virt = ioremap(sbc82xx_flash_map[i].phys, sbc82xx_flash_map[i].size); + sbc82xx_flash_map[i].virt = ioremap(sbc82xx_flash_map[i].phys, + sbc82xx_flash_map[i].size); if (!sbc82xx_flash_map[i].virt) { printk("Failed to ioremap\n"); @@ -129,24 +130,20 @@ static int __init init_sbc82xx_flash(void) sbcmtd[i]->owner = THIS_MODULE; - nr_parts = parse_mtd_partitions(sbcmtd[i], part_probes, - &sbcmtd_parts[i], 0); - if (nr_parts > 0) { - mtd_device_register(sbcmtd[i], sbcmtd_parts[i], - nr_parts); - continue; - } - /* No partitioning detected. Use default */ if (i == 2) { - mtd_device_register(sbcmtd[i], NULL, 0); + defparts = NULL; + nr_parts = 0; } else if (i == bigflash) { - mtd_device_register(sbcmtd[i], bigflash_parts, - ARRAY_SIZE(bigflash_parts)); + defparts = bigflash_parts; + nr_parts = ARRAY_SIZE(bigflash_parts); } else { - mtd_device_register(sbcmtd[i], smallflash_parts, - ARRAY_SIZE(smallflash_parts)); + defparts = smallflash_parts; + nr_parts = ARRAY_SIZE(smallflash_parts); } + + mtd_device_parse_register(sbcmtd[i], part_probes, 0, + defparts, nr_parts); } return 0; } @@ -159,12 +156,8 @@ static void __exit cleanup_sbc82xx_flash(void) if (!sbcmtd[i]) continue; - if (i<2 || sbcmtd_parts[i]) - mtd_device_unregister(sbcmtd[i]); - else - mtd_device_unregister(sbcmtd[i]); + mtd_device_unregister(sbcmtd[i]); - kfree(sbcmtd_parts[i]); map_destroy(sbcmtd[i]); iounmap((void *)sbc82xx_flash_map[i].virt); -- cgit v1.2.3 From ef5d79f1e15ded65af7a75fc464d5dd246a912c7 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:23 +0400 Subject: mtd: atmel_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 47ece8e06e17..b1381437a957 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -492,8 +492,6 @@ static int __init atmel_nand_probe(struct platform_device *pdev) struct resource *regs; struct resource *mem; int res; - struct mtd_partition *partitions = NULL; - int num_partitions = 0; mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem) { @@ -652,24 +650,11 @@ static int __init atmel_nand_probe(struct platform_device *pdev) } mtd->name = "atmel_nand"; - num_partitions = parse_mtd_partitions(mtd, NULL, &partitions, 0); - if (num_partitions <= 0 && host->board->parts) { - partitions = host->board->parts; - num_partitions = host->board->num_parts; - } - - if ((!partitions) || (num_partitions == 0)) { - printk(KERN_ERR "atmel_nand: No partitions defined, or unsupported device.\n"); - res = -ENXIO; - goto err_no_partitions; - } - - res = mtd_device_register(mtd, partitions, num_partitions); + res = mtd_device_parse_register(mtd, NULL, 0, + host->board->parts, host->board->num_parts); if (!res) return res; -err_no_partitions: - nand_release(mtd); err_scan_tail: err_scan_ident: err_no_card: -- cgit v1.2.3 From 58171cb1422ed72192cde5573f26e6bd3c5c98f0 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:27 +0400 Subject: mtd: bcm_umi_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm_umi_nand.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c index b1b7b16a843b..a8ae89865a86 100644 --- a/drivers/mtd/nand/bcm_umi_nand.c +++ b/drivers/mtd/nand/bcm_umi_nand.c @@ -489,23 +489,8 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) } /* Register the partitions */ - { - int nr_partitions; - struct mtd_partition *partition_info; - - board_mtd->name = "bcm_umi-nand"; - nr_partitions = parse_mtd_partitions(board_mtd, NULL, - &partition_info, 0); - - if (nr_partitions <= 0) { - printk(KERN_ERR "BCM UMI NAND: Too few partitions - %d\n", - nr_partitions); - iounmap(bcm_umi_io_base); - kfree(board_mtd); - return -EIO; - } - mtd_device_register(board_mtd, partition_info, nr_partitions); - } + board_mtd->name = "bcm_umi-nand"; + mtd_device_parse_register(board_mtd, NULL, 0, NULL, 0); /* Return happy */ return 0; -- cgit v1.2.3 From 4d32de81382c5a0ee74b5ca5996f27111960a48d Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:29 +0400 Subject: mtd: cafe_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Fixed by Brian Norris Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cafe_nand.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 88ac4b598abc..f6eb66432c81 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -57,7 +57,6 @@ struct cafe_priv { struct nand_chip nand; - struct mtd_partition *parts; struct pci_dev *pdev; void __iomem *mmio; struct rs_control *rs; @@ -630,8 +629,6 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev, struct cafe_priv *cafe; uint32_t ctrl; int err = 0; - struct mtd_partition *parts; - int nr_parts; /* Very old versions shared the same PCI ident for all three functions on the chip. Verify the class too... */ @@ -800,16 +797,9 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev, pci_set_drvdata(pdev, mtd); - /* We register the whole device first, separate from the partitions */ - mtd_device_register(mtd, NULL, 0); - mtd->name = "cafe_nand"; - nr_parts = parse_mtd_partitions(mtd, part_probes, &parts, 0); - if (nr_parts > 0) { - cafe->parts = parts; - dev_info(&cafe->pdev->dev, "%d partitions found\n", nr_parts); - mtd_device_register(mtd, parts, nr_parts); - } + mtd_device_parse_register(mtd, part_probes, 0, NULL, 0); + goto out; out_irq: -- cgit v1.2.3 From 0b118f06df94eb5a14a70c93e0fc739a67f66ae6 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:30 +0400 Subject: mtd: cmx270_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Artem: tweaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cmx270_nand.c | 20 ++------------------ 1 file changed, 2 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index f8f5b7c0daf5..31308e694bd3 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -149,9 +149,6 @@ static int cmx270_device_ready(struct mtd_info *mtd) static int __init cmx270_init(void) { struct nand_chip *this; - const char *part_type; - struct mtd_partition *mtd_parts; - int mtd_parts_nb = 0; int ret; if (!(machine_is_armcore() && cpu_is_pxa27x())) @@ -220,22 +217,9 @@ static int __init cmx270_init(void) goto err_scan; } - mtd_parts_nb = parse_mtd_partitions(cmx270_nand_mtd, NULL, - &mtd_parts, 0); - if (mtd_parts_nb > 0) - part_type = "command line"; - else - mtd_parts_nb = 0; - - if (!mtd_parts_nb) { - mtd_parts = partition_info; - mtd_parts_nb = NUM_PARTITIONS; - part_type = "static"; - } - /* Register the partitions */ - pr_notice("Using %s partition definition\n", part_type); - ret = mtd_device_register(cmx270_nand_mtd, mtd_parts, mtd_parts_nb); + ret = mtd_device_parse_register(cmx270_nand_mtd, NULL, 0, + partition_info, NUM_PARTITIONS); if (ret) goto err_scan; -- cgit v1.2.3 From bbd86c9c33c8d1549cbad5077c5dbaeec8a5cae8 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:31 +0400 Subject: mtd: cs553x_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Artem: tewaked the patch Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/cs553x_nand.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index b2bdf72a9f19..414afa793563 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -283,8 +283,6 @@ static int __init cs553x_init(void) int err = -ENXIO; int i; uint64_t val; - int mtd_parts_nb = 0; - struct mtd_partition *mtd_parts = NULL; /* If the CPU isn't a Geode GX or LX, abort */ if (!is_geode()) @@ -314,11 +312,9 @@ static int __init cs553x_init(void) do mtdconcat etc. if we want to. */ for (i = 0; i < NR_CS553X_CONTROLLERS; i++) { if (cs553x_mtd[i]) { - /* If any devices registered, return success. Else the last error. */ - mtd_parts_nb = parse_mtd_partitions(cs553x_mtd[i], NULL, &mtd_parts, 0); - mtd_device_register(cs553x_mtd[i], mtd_parts, - mtd_parts_nb); + mtd_device_parse_register(cs553x_mtd[i], NULL, 0, + NULL, 0); err = 0; } } -- cgit v1.2.3 From 5b55b1eb21a5aba9c6cf4e0325ac9e4dffa89435 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:32 +0400 Subject: mtd: davinci_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/davinci_nand.c | 25 ++----------------------- 1 file changed, 2 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index 70c92a527f6b..c153e1f77f90 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -57,7 +57,6 @@ struct davinci_nand_info { struct device *dev; struct clk *clk; - bool partitioned; bool is_readmode; @@ -530,8 +529,6 @@ static int __init nand_davinci_probe(struct platform_device *pdev) int ret; uint32_t val; nand_ecc_modes_t ecc_mode; - struct mtd_partition *mtd_parts = NULL; - int mtd_parts_nb = 0; /* insist on board-specific configuration */ if (!pdata) @@ -753,26 +750,8 @@ syndrome_done: if (ret < 0) goto err_scan; - mtd_parts_nb = parse_mtd_partitions(&info->mtd, NULL, &mtd_parts, 0); - - if (mtd_parts_nb <= 0) { - mtd_parts = pdata->parts; - mtd_parts_nb = pdata->nr_parts; - } - - /* Register any partitions */ - if (mtd_parts_nb > 0) { - ret = mtd_device_register(&info->mtd, mtd_parts, - mtd_parts_nb); - if (ret == 0) - info->partitioned = true; - } - - /* If there's no partition info, just package the whole chip - * as a single MTD device. - */ - if (!info->partitioned) - ret = mtd_device_register(&info->mtd, NULL, 0) ? -ENODEV : 0; + ret = mtd_device_parse_register(&info->mtd, NULL, 0, + pdata->parts, pdata->nr_parts); if (ret < 0) goto err_scan; -- cgit v1.2.3 From 6cb03c9cb520186859a034e4e829fb591aea78b6 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:35 +0400 Subject: mtd: edb7312.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/edb7312.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c index 2f9374b38b90..0b1bb91d46a9 100644 --- a/drivers/mtd/nand/edb7312.c +++ b/drivers/mtd/nand/edb7312.c @@ -104,9 +104,6 @@ static int ep7312_device_ready(struct mtd_info *mtd) static int __init ep7312_init(void) { struct nand_chip *this; - const char *part_type = 0; - int mtd_parts_nb = 0; - struct mtd_partition *mtd_parts = 0; void __iomem *ep7312_fio_base; /* Allocate memory for MTD device structure and private data */ @@ -156,20 +153,10 @@ static int __init ep7312_init(void) return -ENXIO; } ep7312_mtd->name = "edb7312-nand"; - mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, NULL, &mtd_parts, 0); - if (mtd_parts_nb > 0) - part_type = "command line"; - else - mtd_parts_nb = 0; - if (mtd_parts_nb == 0) { - mtd_parts = partition_info; - mtd_parts_nb = NUM_PARTITIONS; - part_type = "static"; - } /* Register the partitions */ - printk(KERN_NOTICE "Using %s partition definition\n", part_type); - mtd_device_register(ep7312_mtd, mtd_parts, mtd_parts_nb); + mtd_device_register(ep7312_mtd, NULL, 0, + partition_info, NUM_PARTITIONS); /* Return happy */ return 0; -- cgit v1.2.3 From 0d04eda1430e9a796214bee644b7e05d99cfe613 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:38 +0400 Subject: mtd: fsmc_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Linus Walleij: fixed compilation breakage Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsmc_nand.c | 66 ++++++-------------------------------------- 1 file changed, 9 insertions(+), 57 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index a39c224eb12f..e53b76064133 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -146,7 +146,7 @@ static struct mtd_partition partition_info_16KB_blk[] = { { .name = "Root File System", .offset = 0x460000, - .size = 0, + .size = MTDPART_SIZ_FULL, }, }; @@ -173,7 +173,7 @@ static struct mtd_partition partition_info_128KB_blk[] = { { .name = "Root File System", .offset = 0x800000, - .size = 0, + .size = MTDPART_SIZ_FULL, }, }; @@ -184,8 +184,6 @@ static struct mtd_partition partition_info_128KB_blk[] = { * @pid: Part ID on the AMBA PrimeCell format * @mtd: MTD info for a NAND flash. * @nand: Chip related info for a NAND flash. - * @partitions: Partition info for a NAND Flash. - * @nr_partitions: Total number of partition of a NAND flash. * * @ecc_place: ECC placing locations in oobfree type format. * @bank: Bank number for probed device. @@ -200,8 +198,6 @@ struct fsmc_nand_data { u32 pid; struct mtd_info mtd; struct nand_chip nand; - struct mtd_partition *partitions; - unsigned int nr_partitions; struct fsmc_eccplace *ecc_place; unsigned int bank; @@ -717,57 +713,13 @@ static int __init fsmc_nand_probe(struct platform_device *pdev) * Check for partition info passed */ host->mtd.name = "nand"; - host->nr_partitions = parse_mtd_partitions(&host->mtd, NULL, - &host->partitions, 0); - if (host->nr_partitions <= 0) { - /* - * Check if partition info passed via command line - */ - if (pdata->partitions) { - host->partitions = pdata->partitions; - host->nr_partitions = pdata->nr_partitions; - } else { - struct mtd_partition *partition; - int i; - - /* Select the default partitions info */ - switch (host->mtd.size) { - case 0x01000000: - case 0x02000000: - case 0x04000000: - host->partitions = partition_info_16KB_blk; - host->nr_partitions = - sizeof(partition_info_16KB_blk) / - sizeof(struct mtd_partition); - break; - case 0x08000000: - case 0x10000000: - case 0x20000000: - case 0x40000000: - host->partitions = partition_info_128KB_blk; - host->nr_partitions = - sizeof(partition_info_128KB_blk) / - sizeof(struct mtd_partition); - break; - default: - ret = -ENXIO; - pr_err("Unsupported NAND size\n"); - goto err_probe; - } - - partition = host->partitions; - for (i = 0; i < host->nr_partitions; i++, partition++) { - if (partition->size == 0) { - partition->size = host->mtd.size - - partition->offset; - break; - } - } - } - } - - ret = mtd_device_register(&host->mtd, host->partitions, - host->nr_partitions); + ret = mtd_device_parse_register(&host->mtd, NULL, 0, + host->mtd.size <= 0x04000000 ? + partition_info_16KB_blk : + partition_info_128KB_blk, + host->mtd.size <= 0x04000000 ? + ARRAY_SIZE(partition_info_16KB_blk) : + ARRAY_SIZE(partition_info_128KB_blk)); if (ret) goto err_probe; -- cgit v1.2.3 From 4571c1396260d3f235d987f4acdadfba820f57bf Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:40 +0400 Subject: mtd: h1910.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/h1910.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c index 42f9177e36b1..5dc6f0d92f1a 100644 --- a/drivers/mtd/nand/h1910.c +++ b/drivers/mtd/nand/h1910.c @@ -81,9 +81,6 @@ static int h1910_device_ready(struct mtd_info *mtd) static int __init h1910_init(void) { struct nand_chip *this; - const char *part_type = 0; - int mtd_parts_nb = 0; - struct mtd_partition *mtd_parts = 0; void __iomem *nandaddr; if (!machine_is_h1900()) @@ -136,18 +133,10 @@ static int __init h1910_init(void) iounmap((void *)nandaddr); return -ENXIO; } - mtd_parts_nb = parse_mtd_partitions(h1910_nand_mtd, NULL, &mtd_parts, 0); - if (mtd_parts_nb > 0) - part_type = "command line"; - else { - mtd_parts = partition_info; - mtd_parts_nb = NUM_PARTITIONS; - part_type = "static"; - } /* Register the partitions */ - printk(KERN_NOTICE "Using %s partition definition\n", part_type); - mtd_device_register(h1910_nand_mtd, mtd_parts, mtd_parts_nb); + mtd_device_parse_register(h1910_nand_mtd, NULL, 0, + partition_info, NUM_PARTITIONS); /* Return happy */ return 0; -- cgit v1.2.3 From 90ee1fb3ac918362402a06d0f71545111f374980 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:41 +0400 Subject: mtd: jz4740_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/jz4740_nand.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index 920719cbdb55..e2664073a89b 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -295,8 +295,6 @@ static int __devinit jz_nand_probe(struct platform_device *pdev) struct nand_chip *chip; struct mtd_info *mtd; struct jz_nand_platform_data *pdata = pdev->dev.platform_data; - struct mtd_partition *partition_info; - int num_partitions = 0; nand = kzalloc(sizeof(*nand), GFP_KERNEL); if (!nand) { @@ -369,12 +367,9 @@ static int __devinit jz_nand_probe(struct platform_device *pdev) goto err_gpio_free; } - num_partitions = parse_mtd_partitions(mtd, NULL, &partition_info, 0); - if (num_partitions <= 0 && pdata) { - num_partitions = pdata->num_partitions; - partition_info = pdata->partitions; - } - ret = mtd_device_register(mtd, partition_info, num_partitions); + ret = mtd_device_parse_register(mtd, NULL, 0, + pdata ? pdata->partitions : NULL, + pdata ? pdata->num_partitions : 0); if (ret) { dev_err(&pdev->dev, "Failed to add mtd device\n"); -- cgit v1.2.3 From d4ed8f1222d5ada9da402cf312dc64e39c705da9 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:43 +0400 Subject: mtd: mxc_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mxc_nand.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index ca42c8f335b3..4c2bb4a4bf0b 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -143,7 +143,6 @@ struct mxc_nand_host { struct mtd_info mtd; struct nand_chip nand; - struct mtd_partition *parts; struct device *dev; void *spare0; @@ -1044,7 +1043,7 @@ static int __init mxcnd_probe(struct platform_device *pdev) struct mxc_nand_platform_data *pdata = pdev->dev.platform_data; struct mxc_nand_host *host; struct resource *res; - int err = 0, __maybe_unused nr_parts = 0; + int err = 0; struct nand_ecclayout *oob_smallpage, *oob_largepage; /* Allocate memory for MTD device structure and private data */ @@ -1231,16 +1230,8 @@ static int __init mxcnd_probe(struct platform_device *pdev) } /* Register the partitions */ - nr_parts = - parse_mtd_partitions(mtd, part_probes, &host->parts, 0); - if (nr_parts > 0) - mtd_device_register(mtd, host->parts, nr_parts); - else if (pdata->parts) - mtd_device_register(mtd, pdata->parts, pdata->nr_parts); - else { - pr_info("Registering %s as whole device\n", mtd->name); - mtd_device_register(mtd, NULL, 0); - } + mtd_device_parse_register(mtd, part_probes, 0, + pdata->parts, pdata->nr_parts); platform_set_drvdata(pdev, host); -- cgit v1.2.3 From 69c85f1f66888e0ad532f8bb37db81ca1e7e56f0 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:55 +0400 Subject: mtd: omap2.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/omap2.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 8783c0800b5e..c5e33fdcbc86 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -112,7 +112,6 @@ struct omap_nand_info { struct nand_hw_control controller; struct omap_nand_platform_data *pdata; struct mtd_info mtd; - struct mtd_partition *parts; struct nand_chip nand; struct platform_device *pdev; @@ -1101,13 +1100,8 @@ static int __devinit omap_nand_probe(struct platform_device *pdev) goto out_release_mem_region; } - err = parse_mtd_partitions(&info->mtd, NULL, &info->parts, 0); - if (err > 0) - mtd_device_register(&info->mtd, info->parts, err); - else if (pdata->parts) - mtd_device_register(&info->mtd, pdata->parts, pdata->nr_parts); - else - mtd_device_register(&info->mtd, NULL, 0); + mtd_device_parse_register(&info->mtd, NULL, 0, + pdata->parts, pdata->nr_parts); platform_set_drvdata(pdev, &info->mtd); -- cgit v1.2.3 From c9dd375f553e6ff1862401decb1b585929285b56 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:55 +0400 Subject: mtd: orion_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/orion_nand.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 5c55981df3da..29f505adaf84 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -79,8 +79,6 @@ static int __init orion_nand_probe(struct platform_device *pdev) struct resource *res; void __iomem *io_base; int ret = 0; - struct mtd_partition *partitions = NULL; - int num_part = 0; nc = kzalloc(sizeof(struct nand_chip) + sizeof(struct mtd_info), GFP_KERNEL); if (!nc) { @@ -131,14 +129,8 @@ static int __init orion_nand_probe(struct platform_device *pdev) } mtd->name = "orion_nand"; - num_part = parse_mtd_partitions(mtd, NULL, &partitions, 0); - /* If cmdline partitions have been passed, let them be used */ - if (num_part <= 0) { - num_part = board->nr_parts; - partitions = board->parts; - } - - ret = mtd_device_register(mtd, partitions, num_part); + ret = mtd_device_parse_register(mtd, NULL, 0, + board->parts, board->nr_parts); if (ret) { nand_release(mtd); goto no_dev; -- cgit v1.2.3 From 009c840770fda0165302e9853192a7f0677098b3 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:57 +0400 Subject: mtd: plat_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/plat_nand.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 746a723b4933..ea8e1234e0e2 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -21,8 +21,6 @@ struct plat_nand_data { struct nand_chip chip; struct mtd_info mtd; void __iomem *io_base; - int nr_parts; - struct mtd_partition *parts; }; /* @@ -100,21 +98,9 @@ static int __devinit plat_nand_probe(struct platform_device *pdev) goto out; } - if (pdata->chip.part_probe_types) { - err = parse_mtd_partitions(&data->mtd, - pdata->chip.part_probe_types, - &data->parts, 0); - if (err > 0) { - mtd_device_register(&data->mtd, data->parts, err); - return 0; - } - } - if (pdata->chip.partitions) { - data->parts = pdata->chip.partitions; - err = mtd_device_register(&data->mtd, data->parts, - pdata->chip.nr_partitions); - } else - err = mtd_device_register(&data->mtd, NULL, 0); + err = mtd_device_parse_register(&data->mtd, + pdata->chip.part_probe_types, 0, + pdata->chip.partitions, pdata->chip.nr_partitions); if (!err) return err; @@ -144,8 +130,6 @@ static int __devexit plat_nand_remove(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); nand_release(&data->mtd); - if (data->parts && data->parts != pdata->chip.partitions) - kfree(data->parts); if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); iounmap(data->io_base); -- cgit v1.2.3 From 725b75a4acd34e39685483864e824b430e55e2ac Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:58 +0400 Subject: mtd: ppchameleonevb.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/ppchameleonevb.c | 42 ++++++++++----------------------------- 1 file changed, 10 insertions(+), 32 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c index 93766336ab79..7e52af51a198 100644 --- a/drivers/mtd/nand/ppchameleonevb.c +++ b/drivers/mtd/nand/ppchameleonevb.c @@ -191,9 +191,6 @@ static int ppchameleonevb_device_ready(struct mtd_info *minfo) static int __init ppchameleonevb_init(void) { struct nand_chip *this; - const char *part_type = 0; - int mtd_parts_nb = 0; - struct mtd_partition *mtd_parts = 0; void __iomem *ppchameleon_fio_base; void __iomem *ppchameleonevb_fio_base; @@ -276,24 +273,13 @@ static int __init ppchameleonevb_init(void) #endif ppchameleon_mtd->name = "ppchameleon-nand"; - mtd_parts_nb = parse_mtd_partitions(ppchameleon_mtd, NULL, &mtd_parts, 0); - if (mtd_parts_nb > 0) - part_type = "command line"; - else - mtd_parts_nb = 0; - - if (mtd_parts_nb == 0) { - if (ppchameleon_mtd->size == NAND_SMALL_SIZE) - mtd_parts = partition_info_me; - else - mtd_parts = partition_info_hi; - mtd_parts_nb = NUM_PARTITIONS; - part_type = "static"; - } /* Register the partitions */ - printk(KERN_NOTICE "Using %s partition definition\n", part_type); - mtd_device_register(ppchameleon_mtd, mtd_parts, mtd_parts_nb); + mtd_device_parse_register(ppchameleon_mtd, NULL, 0, + ppchameleon_mtd->size == NAND_SMALL_SIZE ? + partition_info_me : + partition_info_hi, + NUM_PARTITIONS); nand_evb_init: /**************************** @@ -377,21 +363,13 @@ static int __init ppchameleonevb_init(void) } ppchameleonevb_mtd->name = NAND_EVB_MTD_NAME; - mtd_parts_nb = parse_mtd_partitions(ppchameleonevb_mtd, NULL, &mtd_parts, 0); - if (mtd_parts_nb > 0) - part_type = "command line"; - else - mtd_parts_nb = 0; - - if (mtd_parts_nb == 0) { - mtd_parts = partition_info_evb; - mtd_parts_nb = NUM_PARTITIONS; - part_type = "static"; - } /* Register the partitions */ - printk(KERN_NOTICE "Using %s partition definition\n", part_type); - mtd_device_register(ppchameleonevb_mtd, mtd_parts, mtd_parts_nb); + mtd_device_parse_register(ppchameleonevb_mtd, NULL, 0, + ppchameleon_mtd->size == NAND_SMALL_SIZE ? + partition_info_me : + partition_info_hi, + NUM_PARTITIONS); /* Return happy */ return 0; -- cgit v1.2.3 From ee0f6a15b3f9246ae11e581cb9dae8fb2cc5da5c Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:59 +0400 Subject: mtd: pxa3xx_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 5c3af2f72a62..b7db1b2021f2 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1133,8 +1133,6 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) { struct pxa3xx_nand_platform_data *pdata; struct pxa3xx_nand_info *info; - struct mtd_partition *parts; - int nr_parts; pdata = pdev->dev.platform_data; if (!pdata) { @@ -1152,13 +1150,8 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) return -ENODEV; } - - nr_parts = parse_mtd_partitions(info->mtd, NULL, &parts, 0); - - if (nr_parts) - return mtd_device_register(info->mtd, parts, nr_parts); - - return mtd_device_register(info->mtd, pdata->parts, pdata->nr_parts); + return mtd_device_parse_register(info->mtd, NULL, 0, + pdata->parts, pdata->nr_parts); } #ifdef CONFIG_PM -- cgit v1.2.3 From 599501a749a1ca3baa94ac9714f06782f63439b0 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:02 +0400 Subject: mtd: s3c2410.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/s3c2410.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 17954baf12cd..b0f8e77834fe 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -748,21 +748,11 @@ static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info, struct s3c2410_nand_mtd *mtd, struct s3c2410_nand_set *set) { - struct mtd_partition *part_info; - int nr_part = 0; + if (set) + mtd->mtd.name = set->name; - if (set == NULL) - return mtd_device_register(&mtd->mtd, NULL, 0); - - mtd->mtd.name = set->name; - nr_part = parse_mtd_partitions(&mtd->mtd, NULL, &part_info, 0); - - if (nr_part <= 0 && set->nr_partitions > 0) { - nr_part = set->nr_partitions; - part_info = set->partitions; - } - - return mtd_device_register(&mtd->mtd, part_info, nr_part); + return mtd_device_parse_register(&mtd->mtd, NULL, 0, + set->partitions, set->nr_partitions); } /** -- cgit v1.2.3 From 3af55a89912e7e4b2a09d4c8c04fd884a6cf151f Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:03 +0400 Subject: mtd: sharpsl.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/sharpsl.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index b3377f88326e..619d2a504788 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -109,8 +109,6 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat, static int __devinit sharpsl_nand_probe(struct platform_device *pdev) { struct nand_chip *this; - struct mtd_partition *sharpsl_partition_info; - int nr_partitions; struct resource *r; int err = 0; struct sharpsl_nand *sharpsl; @@ -182,14 +180,9 @@ static int __devinit sharpsl_nand_probe(struct platform_device *pdev) /* Register the partitions */ sharpsl->mtd.name = "sharpsl-nand"; - nr_partitions = parse_mtd_partitions(&sharpsl->mtd, NULL, &sharpsl_partition_info, 0); - if (nr_partitions <= 0) { - nr_partitions = data->nr_partitions; - sharpsl_partition_info = data->partitions; - } - err = mtd_device_register(&sharpsl->mtd, sharpsl_partition_info, - nr_partitions); + err = mtd_device_parse_register(&sharpsl->mtd, NULL, 0, + data->partitions, data->nr_partitions); if (err) goto err_add; -- cgit v1.2.3 From 68adef5db85d147943ed97bbd148a712b2323ecc Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:09 +0400 Subject: mtd: tmio_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/tmio_nand.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c index b6ffad64cda5..beebd95f7690 100644 --- a/drivers/mtd/nand/tmio_nand.c +++ b/drivers/mtd/nand/tmio_nand.c @@ -378,8 +378,6 @@ static int tmio_probe(struct platform_device *dev) struct tmio_nand *tmio; struct mtd_info *mtd; struct nand_chip *nand_chip; - struct mtd_partition *parts; - int nbparts = 0; int retval; if (data == NULL) @@ -458,13 +456,9 @@ static int tmio_probe(struct platform_device *dev) goto err_scan; } /* Register the partitions */ - nbparts = parse_mtd_partitions(mtd, NULL, &parts, 0); - if (nbparts <= 0 && data) { - parts = data->partition; - nbparts = data->num_partitions; - } - - retval = mtd_device_register(mtd, parts, nbparts); + retval = mtd_device_parse_register(mtd, NULL, 0, + data ? data->partition : NULL, + data ? data->num_partitions : 0); if (!retval) return retval; -- cgit v1.2.3 From 9e58c5d42ff69e7d99cc8e37082f58ba44e7fa7d Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:09 +0400 Subject: mtd: txx9ndfmc.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/txx9ndfmc.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index 91b05b9a9086..ace46fdaef58 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -74,7 +74,6 @@ struct txx9ndfmc_drvdata { unsigned char hold; /* in gbusclock */ unsigned char spw; /* in gbusclock */ struct nand_hw_control hw_control; - struct mtd_partition *parts[MAX_TXX9NDFMC_DEV]; }; static struct platform_device *mtd_to_platdev(struct mtd_info *mtd) @@ -332,7 +331,6 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) struct txx9ndfmc_priv *txx9_priv; struct nand_chip *chip; struct mtd_info *mtd; - int nr_parts; if (!(plat->ch_mask & (1 << i))) continue; @@ -392,9 +390,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev) } mtd->name = txx9_priv->mtdname; - nr_parts = parse_mtd_partitions(mtd, NULL, - &drvdata->parts[i], 0); - mtd_device_register(mtd, drvdata->parts[i], nr_parts); + mtd_device_parse_register(mtd, NULL, 0, NULL, 0); drvdata->mtds[i] = mtd; } @@ -420,7 +416,6 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev) txx9_priv = chip->priv; nand_release(mtd); - kfree(drvdata->parts[i]); kfree(txx9_priv->mtdname); kfree(txx9_priv); } -- cgit v1.2.3 From 92ffb00d11b24e69cc87a0c0aa5de172d9de8e13 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:10 +0400 Subject: mtd: onenand/generic.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/generic.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index bca1c496135f..8152a3160b12 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -32,7 +32,6 @@ struct onenand_info { struct mtd_info mtd; - struct mtd_partition *parts; struct onenand_chip onenand; }; @@ -71,13 +70,9 @@ static int __devinit generic_onenand_probe(struct platform_device *pdev) goto out_iounmap; } - err = parse_mtd_partitions(&info->mtd, NULL, &info->parts, 0); - if (err > 0) - mtd_device_register(&info->mtd, info->parts, err); - else if (err <= 0 && pdata && pdata->parts) - mtd_device_register(&info->mtd, pdata->parts, pdata->nr_parts); - else - err = mtd_device_register(&info->mtd, NULL, 0); + err = mtd_device_parse_register(&info->mtd, NULL, 0, + pdata ? pdata->parts : NULL, + pdata ? pdata->nr_parts : 0); platform_set_drvdata(pdev, info); -- cgit v1.2.3 From 7d010d2e772e16ef35a9bc6d706ec1e40eac9f46 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:11 +0400 Subject: mtd: onenand/omap2.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Axel Lin : fixed build breakage Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/omap2.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index 5ca2053f6027..06efa14cfa34 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -57,7 +57,6 @@ struct omap2_onenand { unsigned long phys_base; int gpio_irq; struct mtd_info mtd; - struct mtd_partition *parts; struct onenand_chip onenand; struct completion irq_done; struct completion dma_done; @@ -752,13 +751,9 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev) if ((r = onenand_scan(&c->mtd, 1)) < 0) goto err_release_regulator; - r = parse_mtd_partitions(&c->mtd, NULL, &c->parts, 0); - if (r > 0) - r = mtd_device_register(&c->mtd, c->parts, r); - else if (pdata->parts != NULL) - r = mtd_device_register(&c->mtd, pdata->parts, pdata->nr_parts); - else - r = mtd_device_register(&c->mtd, NULL, 0); + r = mtd_device_parse_register(&c->mtd, NULL, 0, + pdata ? pdata->parts : NULL, + pdata ? pdata->nr_parts : 0); if (r) goto err_release_onenand; @@ -785,7 +780,6 @@ err_release_mem_region: err_free_cs: gpmc_cs_free(c->gpmc_cs); err_kfree: - kfree(c->parts); kfree(c); return r; @@ -808,7 +802,6 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev) iounmap(c->onenand.base); release_mem_region(c->phys_base, ONENAND_IO_SIZE); gpmc_cs_free(c->gpmc_cs); - kfree(c->parts); kfree(c); return 0; -- cgit v1.2.3 From f8214b80dacbb4d009b2c8968fe52aafb6ed55d4 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:16 +0400 Subject: mtd: onenand/samsung.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Axel Lin : fixed build error. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/samsung.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c index 78a08eae6adf..5474547eafc2 100644 --- a/drivers/mtd/onenand/samsung.c +++ b/drivers/mtd/onenand/samsung.c @@ -147,7 +147,6 @@ struct s3c_onenand { struct resource *dma_res; unsigned long phys_base; struct completion complete; - struct mtd_partition *parts; }; #define CMD_MAP_00(dev, addr) (dev->cmd_map(MAP_00, ((addr) << 1))) @@ -1015,13 +1014,9 @@ static int s3c_onenand_probe(struct platform_device *pdev) if (s3c_read_reg(MEM_CFG_OFFSET) & ONENAND_SYS_CFG1_SYNC_READ) dev_info(&onenand->pdev->dev, "OneNAND Sync. Burst Read enabled\n"); - err = parse_mtd_partitions(mtd, NULL, &onenand->parts, 0); - if (err > 0) - mtd_device_register(mtd, onenand->parts, err); - else if (err <= 0 && pdata && pdata->parts) - mtd_device_register(mtd, pdata->parts, pdata->nr_parts); - else - err = mtd_device_register(mtd, NULL, 0); + err = mtd_device_parse_register(mtd, NULL, 0, + pdata ? pdata->parts : NULL, + pdata ? pdata->nr_parts : 0); platform_set_drvdata(pdev, mtd); -- cgit v1.2.3 From 3a8fb12ae9fdbb712f11f9c73e5d08dc34f82118 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:18 +0400 Subject: mtd: mtd_dataflash.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/mtd_dataflash.c | 21 +++------------------ 1 file changed, 3 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 4d4a9cd10c33..8f6b02c43b43 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -637,8 +637,6 @@ add_dataflash_otp(struct spi_device *spi, char *name, struct flash_platform_data *pdata = spi->dev.platform_data; char *otp_tag = ""; int err = 0; - struct mtd_partition *parts; - int nr_parts = 0; priv = kzalloc(sizeof *priv, GFP_KERNEL); if (!priv) @@ -677,23 +675,10 @@ add_dataflash_otp(struct spi_device *spi, char *name, pagesize, otp_tag); dev_set_drvdata(&spi->dev, priv); - nr_parts = parse_mtd_partitions(device, NULL, &parts, 0); + err = mtd_device_parse_register(device, NULL, 0, + pdata ? pdata->parts : NULL, + pdata ? pdata->nr_parts : 0); - if (nr_parts <= 0 && pdata && pdata->parts) { - parts = pdata->parts; - nr_parts = pdata->nr_parts; - } - - if (nr_parts > 0) { - priv->partitioned = 1; - err = mtd_device_register(device, parts, nr_parts); - goto out; - } - - if (mtd_device_register(device, NULL, 0) == 1) - err = -ENODEV; - -out: if (!err) return 0; -- cgit v1.2.3 From d117040be074fd1c019b751515f79efe99cd7d76 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 9 Jun 2011 14:54:41 +0400 Subject: mtd: edb7312: correctly pass MTD name to parsers cmdline partitions parser expects MTD name at mtd->name, instead of origin, while edb7312 passes MTDID as origin. Fix that. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/edb7312.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c index fe42a212bb3e..b07acd69277a 100644 --- a/drivers/mtd/maps/edb7312.c +++ b/drivers/mtd/maps/edb7312.c @@ -88,8 +88,9 @@ static int __init init_edb7312nor(void) } if (mymtd) { mymtd->owner = THIS_MODULE; + mymtd->name = MTDID; - mtd_parts_nb = parse_mtd_partitions(mymtd, probes, &mtd_parts, MTDID); + mtd_parts_nb = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0); if (mtd_parts_nb > 0) part_type = "detected"; -- cgit v1.2.3 From e638275e18a929103bb087acb94d2b67eb0818e0 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Fri, 17 Jun 2011 19:06:33 +0800 Subject: mtd: onenand: remove redundant mtd_device_unregister before onenand_release onenand_release() will call mtd_device_unregister(), thus remove the redundant mtd_device_unregister() call before onenand_release(). Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/generic.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c index 8152a3160b12..7813095264a5 100644 --- a/drivers/mtd/onenand/generic.c +++ b/drivers/mtd/onenand/generic.c @@ -97,7 +97,6 @@ static int __devexit generic_onenand_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); if (info) { - mtd_device_unregister(&info->mtd); onenand_release(&info->mtd); release_mem_region(res->start, size); iounmap(info->onenand.base); -- cgit v1.2.3 From f722013ee9fd24623df31dec9a91a6d02c3e2f2f Mon Sep 17 00:00:00 2001 From: "THOMSON, Adam (Adam)" Date: Tue, 14 Jun 2011 16:52:38 +0200 Subject: mtd: nand_base: always initialise oob_poi before writing OOB data In nand_do_write_ops() code it is possible for a caller to provide ops.oobbuf populated and ops.mode == MTD_OOB_AUTO, which currently means that the chip->oob_poi buffer isn't initialised to all 0xFF. The nand_fill_oob() method then carries out the task of copying the provided OOB data to oob_poi, but with MTD_OOB_AUTO it skips areas marked as unavailable by the layout struct, including the bad block marker bytes. An example of this causing issues is when the last OOB data read was from the start of a bad block where the markers are not 0xFF, and the caller wishes to write new OOB data at the beginning of another block. In this scenario the caller would provide OOB data, but nand_fill_oob() would skip the bad block marker bytes in oob_poi before copying the OOB data provided by the caller. This means that when the OOB data is written back to NAND, the block is inadvertently marked as bad without the caller knowing. This has been witnessed when using YAFFS2 where tags are stored in the OOB. To avoid this oob_poi is always initialised to 0xFF to make sure no left over data is inadvertently written back to the OOB area. Credits to Brian Norris for fixing this patch. Signed-off-by: Adam Thomson Signed-off-by: Artem Bityutskiy Cc: stable@kernel.org [2.6.20+] --- drivers/mtd/nand/nand_base.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1525cd01dacd..408e1d0abfd1 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2088,14 +2088,22 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, /** * nand_fill_oob - [Internal] Transfer client buffer to oob - * @chip: nand chip structure + * @mtd: MTD device structure * @oob: oob data buffer * @len: oob data write length * @ops: oob ops structure */ -static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, size_t len, - struct mtd_oob_ops *ops) +static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len, + struct mtd_oob_ops *ops) { + struct nand_chip *chip = mtd->priv; + + /* + * Initialise to all 0xFF, to avoid the possibility of left over OOB + * data from a previous OOB read. + */ + memset(chip->oob_poi, 0xff, mtd->oobsize); + switch (ops->mode) { case MTD_OOB_PLACE: @@ -2192,10 +2200,6 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, (chip->pagebuf << chip->page_shift) < (to + ops->len)) chip->pagebuf = -1; - /* If we're not given explicit OOB data, let it be 0xFF */ - if (likely(!oob)) - memset(chip->oob_poi, 0xff, mtd->oobsize); - /* Don't allow multipage oob writes with offset */ if (oob && ops->ooboffs && (ops->ooboffs + ops->ooblen > oobmaxlen)) return -EINVAL; @@ -2217,8 +2221,11 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, if (unlikely(oob)) { size_t len = min(oobwritelen, oobmaxlen); - oob = nand_fill_oob(chip, oob, len, ops); + oob = nand_fill_oob(mtd, oob, len, ops); oobwritelen -= len; + } else { + /* We still need to erase leftover OOB data */ + memset(chip->oob_poi, 0xff, mtd->oobsize); } ret = chip->write_page(mtd, chip, wbuf, page, cached, @@ -2392,10 +2399,8 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, if (page == chip->pagebuf) chip->pagebuf = -1; - memset(chip->oob_poi, 0xff, mtd->oobsize); - nand_fill_oob(chip, ops->oobbuf, ops->ooblen, ops); + nand_fill_oob(mtd, ops->oobbuf, ops->ooblen, ops); status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask); - memset(chip->oob_poi, 0xff, mtd->oobsize); if (status) return status; -- cgit v1.2.3 From c7975330154af17aecc167b33ca866b6b3d98918 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Fri, 10 Jun 2011 18:18:28 +0400 Subject: mtd: abstract last MTD partition parser argument Encapsulate last MTD partition parser argument into a separate structure. Currently it holds only 'origin' field for RedBoot parser, but will be extended in future to contain at least device_node for OF devices. Amended commentary to make kerneldoc happy Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/afs.c | 4 ++-- drivers/mtd/ar7part.c | 2 +- drivers/mtd/cmdlinepart.c | 4 ++-- drivers/mtd/mtdcore.c | 6 +++--- drivers/mtd/mtdpart.c | 7 ++++--- drivers/mtd/redboot.c | 13 ++++++------- 6 files changed, 18 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c index 302372c08b56..89a02f6f65dc 100644 --- a/drivers/mtd/afs.c +++ b/drivers/mtd/afs.c @@ -162,8 +162,8 @@ afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr) } static int parse_afs_partitions(struct mtd_info *mtd, - struct mtd_partition **pparts, - unsigned long origin) + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) { struct mtd_partition *parts; u_int mask, off, idx, sz; diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c index 6697a1ec72d0..71bfa2efb3ea 100644 --- a/drivers/mtd/ar7part.c +++ b/drivers/mtd/ar7part.c @@ -46,7 +46,7 @@ struct ar7_bin_rec { static int create_mtd_partitions(struct mtd_info *master, struct mtd_partition **pparts, - unsigned long origin) + struct mtd_part_parser_data *data) { struct ar7_bin_rec header; unsigned int offset; diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index be0c121f2f1b..1b11f94695e9 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -313,8 +313,8 @@ static int mtdpart_setup_real(char *s) * the first one in the chain if a NULL mtd_id is passed in. */ static int parse_cmdline_partitions(struct mtd_info *master, - struct mtd_partition **pparts, - unsigned long origin) + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) { unsigned long offset; int i; diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 13267477e4e9..e18639980f7a 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -457,7 +457,7 @@ EXPORT_SYMBOL_GPL(mtd_device_register); * @mtd: the MTD device to register * @types: the list of MTD partition probes to try, see * 'parse_mtd_partitions()' for more information - * @origin: start address of MTD device, %0 unless you are sure you need this. + * @parser_data: MTD partition parser-specific data * @parts: fallback partition information to register, if parsing fails; * only valid if %nr_parts > %0 * @nr_parts: the number of partitions in parts, if zero then the full @@ -480,14 +480,14 @@ EXPORT_SYMBOL_GPL(mtd_device_register); * Returns zero in case of success and a negative error code in case of failure. */ int mtd_device_parse_register(struct mtd_info *mtd, const char **types, - unsigned long origin, + struct mtd_part_parser_data *parser_data, const struct mtd_partition *parts, int nr_parts) { int err; struct mtd_partition *real_parts; - err = parse_mtd_partitions(mtd, types, &real_parts, origin); + err = parse_mtd_partitions(mtd, types, &real_parts, parser_data); if (err <= 0 && nr_parts) { real_parts = kmemdup(parts, sizeof(*parts) * nr_parts, GFP_KERNEL); diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 2b71ccb00d39..34d582c2bdf3 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -736,7 +736,7 @@ static const char *default_mtd_part_types[] = {"cmdlinepart", NULL}; * @master: the master partition (describes whole MTD device) * @types: names of partition parsers to try or %NULL * @pparts: array of partitions found is returned here - * @origin: MTD device start address (use %0 if unsure) + * @data: MTD partition parser-specific data * * This function tries to find partition on MTD device @master. It uses MTD * partition parsers, specified in @types. However, if @types is %NULL, then @@ -750,7 +750,8 @@ static const char *default_mtd_part_types[] = {"cmdlinepart", NULL}; * point to an array containing this number of &struct mtd_info objects. */ int parse_mtd_partitions(struct mtd_info *master, const char **types, - struct mtd_partition **pparts, unsigned long origin) + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) { struct mtd_part_parser *parser; int ret = 0; @@ -764,7 +765,7 @@ int parse_mtd_partitions(struct mtd_info *master, const char **types, parser = get_partition_parser(*types); if (!parser) continue; - ret = (*parser->parse_fn)(master, pparts, origin); + ret = (*parser->parse_fn)(master, pparts, data); if (ret > 0) { printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n", ret, parser->name, master->name); diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 7a87d07cd79f..56e48ea7ff05 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -56,8 +56,8 @@ static inline int redboot_checksum(struct fis_image_desc *img) } static int parse_redboot_partitions(struct mtd_info *master, - struct mtd_partition **pparts, - unsigned long fis_origin) + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) { int nrparts = 0; struct fis_image_desc *buf; @@ -197,11 +197,10 @@ static int parse_redboot_partitions(struct mtd_info *master, goto out; } new_fl->img = &buf[i]; - if (fis_origin) { - buf[i].flash_base -= fis_origin; - } else { - buf[i].flash_base &= master->size-1; - } + if (data && data->origin) + buf[i].flash_base -= data->origin; + else + buf[i].flash_base &= master->size-1; /* I'm sure the JFFS2 code has done me permanent damage. * I now think the following is _normal_ -- cgit v1.2.3 From d26c87d64eff271146b40b66c7de8cfeaf956707 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Sun, 29 May 2011 21:32:33 +0400 Subject: mtd: prepare to convert of_mtd_parse_partitions to partition parser Prepare to convert of_mtd_parse_partitions() to usual partitions parser: 1) Register ofpart parser 2) Internally don't use passed device for error printing 3) Add device_node to mtd_part_parser_data struct 4) Move of_mtd_parse_partitions from __devinit to common text section 5) add ofpart to the default list of partition parsers Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdpart.c | 8 ++++++-- drivers/mtd/ofpart.c | 27 +++++++++++++++++++++++++-- 2 files changed, 31 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 34d582c2bdf3..9e8ee054135a 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -729,7 +729,11 @@ EXPORT_SYMBOL_GPL(deregister_mtd_parser); * Do not forget to update 'parse_mtd_partitions()' kerneldoc comment if you * are changing this array! */ -static const char *default_mtd_part_types[] = {"cmdlinepart", NULL}; +static const char *default_mtd_part_types[] = { + "cmdlinepart", + "ofpart", + NULL +}; /** * parse_mtd_partitions - parse MTD partitions @@ -741,7 +745,7 @@ static const char *default_mtd_part_types[] = {"cmdlinepart", NULL}; * This function tries to find partition on MTD device @master. It uses MTD * partition parsers, specified in @types. However, if @types is %NULL, then * the default list of parsers is used. The default list contains only the - * "cmdlinepart" parser ATM. + * "cmdlinepart" and "ofpart" parsers ATM. * * This function may return: * o a negative error code in case of failure diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index a996718fa6b0..7c2c926e0bd7 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -20,7 +20,17 @@ #include #include -int __devinit of_mtd_parse_partitions(struct device *dev, +static int parse_ofpart_partitions(struct mtd_info *master, + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + if (!data || !data->of_node) + return 0; + + return of_mtd_parse_partitions(NULL, data->of_node, pparts); +} + +int of_mtd_parse_partitions(struct device *dev, struct device_node *node, struct mtd_partition **pparts) { @@ -69,7 +79,7 @@ int __devinit of_mtd_parse_partitions(struct device *dev, if (!i) { of_node_put(pp); - dev_err(dev, "No valid partition found on %s\n", node->full_name); + pr_err("No valid partition found on %s\n", node->full_name); kfree(*pparts); *pparts = NULL; return -EINVAL; @@ -79,4 +89,17 @@ int __devinit of_mtd_parse_partitions(struct device *dev, } EXPORT_SYMBOL(of_mtd_parse_partitions); +static struct mtd_part_parser ofpart_parser = { + .owner = THIS_MODULE, + .parse_fn = parse_ofpart_partitions, + .name = "ofpart", +}; + +static int __init ofpart_parser_init(void) +{ + return register_mtd_parser(&ofpart_parser); +} + +module_init(ofpart_parser_init); + MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 5f4ba9f9251a76753f50a4b9b8f49e6ec83d3d22 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:21 +0400 Subject: mtd: physmap_of: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/physmap_of.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index d251d1db129b..6a75743f8ea5 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -165,7 +165,8 @@ static struct mtd_info * __devinit obsolete_probe(struct platform_device *dev, specifies the list of partition probers to use. If none is given then the default is use. These take precedence over other device tree information. */ -static const char *part_probe_types_def[] = { "cmdlinepart", "RedBoot", NULL }; +static const char *part_probe_types_def[] = { "cmdlinepart", "RedBoot", + "ofpart", NULL }; static const char ** __devinit of_get_probes(struct device_node *dp) { const char *cp; @@ -218,6 +219,7 @@ static int __devinit of_flash_probe(struct platform_device *dev) int reg_tuple_size; struct mtd_info **mtd_list = NULL; resource_size_t res_size; + struct mtd_part_parser_data ppdata; match = of_match_device(of_flash_match, &dev->dev); if (!match) @@ -331,21 +333,16 @@ static int __devinit of_flash_probe(struct platform_device *dev) if (err) goto err_out; + ppdata.of_node = dp; part_probe_types = of_get_probes(dp); err = parse_mtd_partitions(info->cmtd, part_probe_types, - &info->parts, 0); + &info->parts, &ppdata); if (err < 0) { of_free_probes(part_probe_types); goto err_out; } of_free_probes(part_probe_types); - if (err == 0) { - err = of_mtd_parse_partitions(&dev->dev, dp, &info->parts); - if (err < 0) - goto err_out; - } - if (err == 0) { err = parse_obsolete_partitions(dev, info, dp); if (err < 0) -- cgit v1.2.3 From ea6a4729869f899a904d862168bfc31e1451570e Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:20 +0400 Subject: mtd: m25p80: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 70d5fcacc3fd..399c2349265f 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -827,6 +827,7 @@ static int __devinit m25p_probe(struct spi_device *spi) unsigned i; struct mtd_partition *parts = NULL; int nr_parts = 0; + struct mtd_part_parser_data ppdata; /* Platform data helps sort out which chip type we have, as * well as how this board partitions it. If we don't have @@ -928,6 +929,7 @@ static int __devinit m25p_probe(struct spi_device *spi) if (info->flags & M25P_NO_ERASE) flash->mtd.flags |= MTD_NO_ERASE; + ppdata.of_node = spi->dev.of_node; flash->mtd.dev.parent = &spi->dev; flash->page_size = info->page_size; @@ -968,20 +970,13 @@ static int __devinit m25p_probe(struct spi_device *spi) /* partitions should match sector boundaries; and it may be good to * use readonly partitions for writeprotected sectors (BP2..BP0). */ - nr_parts = parse_mtd_partitions(&flash->mtd, NULL, &parts, 0); + nr_parts = parse_mtd_partitions(&flash->mtd, NULL, &parts, &ppdata); if (nr_parts <= 0 && data && data->parts) { parts = data->parts; nr_parts = data->nr_parts; } -#ifdef CONFIG_MTD_OF_PARTS - if (nr_parts <= 0 && spi->dev.of_node) { - nr_parts = of_mtd_parse_partitions(&spi->dev, - spi->dev.of_node, &parts); - } -#endif - if (nr_parts > 0) { for (i = 0; i < nr_parts; i++) { DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = " -- cgit v1.2.3 From b6b0fae717bd01d6fcdcef70989c4bc9b77ac0c0 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:22 +0400 Subject: mtd: fsl_elbc_nand: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_elbc_nand.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index d4ea5fe013b7..4d225ba33a64 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -842,13 +842,15 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev) struct resource res; struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl; static const char *part_probe_types[] - = { "cmdlinepart", "RedBoot", NULL }; + = { "cmdlinepart", "RedBoot", "ofpart", NULL }; struct mtd_partition *parts; int ret; int bank; struct device *dev; struct device_node *node = pdev->dev.of_node; + struct mtd_part_parser_data ppdata; + ppdata.of_node = pdev->dev.of_node; if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs) return -ENODEV; lbc = fsl_lbc_ctrl_dev->regs; @@ -934,16 +936,10 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev) /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - ret = parse_mtd_partitions(&priv->mtd, part_probe_types, &parts, 0); + ret = parse_mtd_partitions(&priv->mtd, part_probe_types, &parts, &ppdata); if (ret < 0) goto err; - if (ret == 0) { - ret = of_mtd_parse_partitions(priv->dev, node, &parts); - if (ret < 0) - goto err; - } - mtd_device_register(&priv->mtd, parts, ret); printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n", -- cgit v1.2.3 From a454a296aa8e63f5e5c749343a99fd25c37a3c44 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:23 +0400 Subject: mtd: fsl_upm: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_upm.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index 7c782ebd0f31..714d8318c6ad 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -158,6 +158,7 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun, { int ret; struct device_node *flash_np; + struct mtd_part_parser_data ppdata; fun->chip.IO_ADDR_R = fun->io_base; fun->chip.IO_ADDR_W = fun->io_base; @@ -191,15 +192,9 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun, if (ret) goto err; - ret = parse_mtd_partitions(&fun->mtd, NULL, &fun->parts, 0); + ppdata.of_node = flash_np; + ret = parse_mtd_partitions(&fun->mtd, NULL, &fun->parts, &ppdata); -#ifdef CONFIG_MTD_OF_PARTS - if (ret == 0) { - ret = of_mtd_parse_partitions(fun->dev, flash_np, &fun->parts); - if (ret < 0) - goto err; - } -#endif ret = mtd_device_register(&fun->mtd, fun->parts, ret); err: of_node_put(flash_np); -- cgit v1.2.3 From b3702ea4915363102870a6af60d06d655ca4a09d Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:24 +0400 Subject: mtd: mpc5121_nfc: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mpc5121_nfc.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 30f78ea8e993..9380f96716f4 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -661,6 +661,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) int resettime = 0; int retval = 0; int rev, len; + struct mtd_part_parser_data ppdata; /* * Check SoC revision. This driver supports only NFC @@ -725,6 +726,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) } mtd->name = "MPC5121 NAND"; + ppdata.of_node = dn; chip->dev_ready = mpc5121_nfc_dev_ready; chip->cmdfunc = mpc5121_nfc_command; chip->read_byte = mpc5121_nfc_read_byte; @@ -836,11 +838,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) dev_set_drvdata(dev, mtd); /* Register device in MTD */ - retval = parse_mtd_partitions(mtd, NULL, &parts, 0); -#ifdef CONFIG_MTD_OF_PARTS - if (retval == 0) - retval = of_mtd_parse_partitions(dev, dn, &parts); -#endif + retval = parse_mtd_partitions(mtd, NULL, &parts, &ppdata); if (retval < 0) { dev_err(dev, "Error parsing MTD partitions!\n"); devm_free_irq(dev, prv->irq, mtd); -- cgit v1.2.3 From 9d7948c50055e74b693ce9e99a709b2e5bbc1942 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:25 +0400 Subject: mtd: ndfc: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/ndfc.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 70c04ffa573c..1528734b7616 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -161,6 +161,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, { struct device_node *flash_np; struct nand_chip *chip = &ndfc->chip; + struct mtd_part_parser_data ppdata; int ret; chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA; @@ -188,6 +189,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, if (!flash_np) return -ENODEV; + ppdata->of_node = flash_np; ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s", dev_name(&ndfc->ofdev->dev), flash_np->name); if (!ndfc->mtd.name) { @@ -199,17 +201,10 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, if (ret) goto err; - ret = parse_mtd_partitions(&ndfc->mtd, NULL, &ndfc->parts, 0); + ret = parse_mtd_partitions(&ndfc->mtd, NULL, &ndfc->parts, &ppdata); if (ret < 0) goto err; - if (ret == 0) { - ret = of_mtd_parse_partitions(&ndfc->ofdev->dev, flash_np, - &ndfc->parts); - if (ret < 0) - goto err; - } - ret = mtd_device_register(&ndfc->mtd, ndfc->parts, ret); err: -- cgit v1.2.3 From 2cd9ea5256ecf2bc795d476598ac7f43f4b83a97 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:02:26 +0400 Subject: mtd: socrates_nand: use ofpart through generic parsing Convert the driver to use ofpart partitions parsing through the generic parse_mtd_partitions(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/socrates_nand.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index 9023ac833fcf..f4f79ecb5ba3 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -166,6 +166,7 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev) int res; struct mtd_partition *partitions = NULL; int num_partitions = 0; + struct mtd_part_parser_data ppdata; /* Allocate memory for the device structure (and zero it) */ host = kzalloc(sizeof(struct socrates_nand_host), GFP_KERNEL); @@ -191,6 +192,7 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev) mtd->name = "socrates_nand"; mtd->owner = THIS_MODULE; mtd->dev.parent = &ofdev->dev; + ppdata.of_node = ofdev->dev.of_node; /*should never be accessed directly */ nand_chip->IO_ADDR_R = (void *)0xdeadbeef; @@ -223,22 +225,12 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev) goto out; } - num_partitions = parse_mtd_partitions(mtd, NULL, &partitions, 0); + num_partitions = parse_mtd_partitions(mtd, NULL, &partitions, &ppdata); if (num_partitions < 0) { res = num_partitions; goto release; } - if (num_partitions == 0) { - num_partitions = of_mtd_parse_partitions(&ofdev->dev, - ofdev->dev.of_node, - &partitions); - if (num_partitions < 0) { - res = num_partitions; - goto release; - } - } - res = mtd_device_register(mtd, partitions, num_partitions); if (!res) return res; -- cgit v1.2.3 From 628376fb5369c353680f03f47705b1437ff8de80 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:05:33 +0400 Subject: mtd: drop of_mtd_parse_partitions() All users have been converted to call of_mtd_parse_partitions through parse_mtd_partitions() multiplexer. Drop obsolete API. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/ofpart.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 7c2c926e0bd7..24007f3c2c2f 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -24,20 +24,19 @@ static int parse_ofpart_partitions(struct mtd_info *master, struct mtd_partition **pparts, struct mtd_part_parser_data *data) { - if (!data || !data->of_node) - return 0; - - return of_mtd_parse_partitions(NULL, data->of_node, pparts); -} - -int of_mtd_parse_partitions(struct device *dev, - struct device_node *node, - struct mtd_partition **pparts) -{ + struct device_node *node; const char *partname; struct device_node *pp; int nr_parts, i; + + if (!data) + return 0; + + node = data->of_node; + if (!node) + return 0; + /* First count the subnodes */ pp = NULL; nr_parts = 0; @@ -87,7 +86,6 @@ int of_mtd_parse_partitions(struct device *dev, return nr_parts; } -EXPORT_SYMBOL(of_mtd_parse_partitions); static struct mtd_part_parser ofpart_parser = { .owner = THIS_MODULE, -- cgit v1.2.3 From fbcf62a32be1e897a1d730af430758f881f8ef35 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 30 May 2011 01:26:17 +0400 Subject: mtd: physmap_of: move parse_obsolete_partitions to become separate parser Move parse_obsolete_partitions() to ofpart.c and register it as an ofoldpart partitions parser. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/physmap_of.c | 53 +----------------------------- drivers/mtd/ofpart.c | 75 ++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 75 insertions(+), 53 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index 6a75743f8ea5..55c4e2eefdc6 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -40,51 +40,6 @@ struct of_flash { }; #define OF_FLASH_PARTS(info) ((info)->parts) -static int parse_obsolete_partitions(struct platform_device *dev, - struct of_flash *info, - struct device_node *dp) -{ - int i, plen, nr_parts; - const struct { - __be32 offset, len; - } *part; - const char *names; - - part = of_get_property(dp, "partitions", &plen); - if (!part) - return 0; /* No partitions found */ - - dev_warn(&dev->dev, "Device tree uses obsolete partition map binding\n"); - - nr_parts = plen / sizeof(part[0]); - - info->parts = kzalloc(nr_parts * sizeof(*info->parts), GFP_KERNEL); - if (!info->parts) - return -ENOMEM; - - names = of_get_property(dp, "partition-names", &plen); - - for (i = 0; i < nr_parts; i++) { - info->parts[i].offset = be32_to_cpu(part->offset); - info->parts[i].size = be32_to_cpu(part->len) & ~1; - if (be32_to_cpu(part->len) & 1) /* bit 0 set signifies read only partition */ - info->parts[i].mask_flags = MTD_WRITEABLE; - - if (names && (plen > 0)) { - int len = strlen(names) + 1; - - info->parts[i].name = (char *)names; - plen -= len; - names += len; - } else { - info->parts[i].name = "unnamed"; - } - - part++; - } - - return nr_parts; -} static int of_flash_remove(struct platform_device *dev) { @@ -166,7 +121,7 @@ static struct mtd_info * __devinit obsolete_probe(struct platform_device *dev, default is use. These take precedence over other device tree information. */ static const char *part_probe_types_def[] = { "cmdlinepart", "RedBoot", - "ofpart", NULL }; + "ofpart", "ofoldpart", NULL }; static const char ** __devinit of_get_probes(struct device_node *dp) { const char *cp; @@ -343,12 +298,6 @@ static int __devinit of_flash_probe(struct platform_device *dev) } of_free_probes(part_probe_types); - if (err == 0) { - err = parse_obsolete_partitions(dev, info, dp); - if (err < 0) - goto err_out; - } - mtd_device_register(info->cmtd, info->parts, err); kfree(mtd_list); diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 24007f3c2c2f..41c451842fd2 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -93,9 +93,82 @@ static struct mtd_part_parser ofpart_parser = { .name = "ofpart", }; +static int parse_ofoldpart_partitions(struct mtd_info *master, + struct mtd_partition **pparts, + struct mtd_part_parser_data *data) +{ + struct device_node *dp; + int i, plen, nr_parts; + const struct { + __be32 offset, len; + } *part; + const char *names; + + if (!data) + return 0; + + dp = data->of_node; + if (!dp) + return 0; + + part = of_get_property(dp, "partitions", &plen); + if (!part) + return 0; /* No partitions found */ + + pr_warning("Device tree uses obsolete partition map binding: %s\n", + dp->full_name); + + nr_parts = plen / sizeof(part[0]); + + *pparts = kzalloc(nr_parts * sizeof(*(*pparts)), GFP_KERNEL); + if (!pparts) + return -ENOMEM; + + names = of_get_property(dp, "partition-names", &plen); + + for (i = 0; i < nr_parts; i++) { + (*pparts)[i].offset = be32_to_cpu(part->offset); + (*pparts)[i].size = be32_to_cpu(part->len) & ~1; + /* bit 0 set signifies read only partition */ + if (be32_to_cpu(part->len) & 1) + (*pparts)[i].mask_flags = MTD_WRITEABLE; + + if (names && (plen > 0)) { + int len = strlen(names) + 1; + + (*pparts)[i].name = (char *)names; + plen -= len; + names += len; + } else { + (*pparts)[i].name = "unnamed"; + } + + part++; + } + + return nr_parts; +} + +static struct mtd_part_parser ofoldpart_parser = { + .owner = THIS_MODULE, + .parse_fn = parse_ofoldpart_partitions, + .name = "ofoldpart", +}; + static int __init ofpart_parser_init(void) { - return register_mtd_parser(&ofpart_parser); + int rc; + rc = register_mtd_parser(&ofpart_parser); + if (rc) + goto out; + + rc = register_mtd_parser(&ofoldpart_parser); + if (!rc) + return 0; + + deregister_mtd_parser(&ofoldpart_parser); +out: + return rc; } module_init(ofpart_parser_init); -- cgit v1.2.3 From f44dcbd06236ecc610bd03abeceac77a21cb019e Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:59 +0400 Subject: mtd: physmap_of.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/physmap_of.c | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index 55c4e2eefdc6..7d65f9d3e690 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -34,13 +34,10 @@ struct of_flash_list { struct of_flash { struct mtd_info *cmtd; - struct mtd_partition *parts; int list_size; /* number of elements in of_flash_list */ struct of_flash_list list[0]; }; -#define OF_FLASH_PARTS(info) ((info)->parts) - static int of_flash_remove(struct platform_device *dev) { struct of_flash *info; @@ -56,11 +53,8 @@ static int of_flash_remove(struct platform_device *dev) mtd_concat_destroy(info->cmtd); } - if (info->cmtd) { - if (OF_FLASH_PARTS(info)) - kfree(OF_FLASH_PARTS(info)); + if (info->cmtd) mtd_device_unregister(info->cmtd); - } for (i = 0; i < info->list_size; i++) { if (info->list[i].mtd) @@ -290,16 +284,10 @@ static int __devinit of_flash_probe(struct platform_device *dev) ppdata.of_node = dp; part_probe_types = of_get_probes(dp); - err = parse_mtd_partitions(info->cmtd, part_probe_types, - &info->parts, &ppdata); - if (err < 0) { - of_free_probes(part_probe_types); - goto err_out; - } + mtd_device_parse_register(info->cmtd, part_probe_types, &ppdata, + NULL, 0); of_free_probes(part_probe_types); - mtd_device_register(info->cmtd, info->parts, err); - kfree(mtd_list); return 0; -- cgit v1.2.3 From 871770b5c857aa39e87785726ce3ec5a41cd387a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 17:59:16 +0400 Subject: mtd: m25p80.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 28 +++------------------------- 1 file changed, 3 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 399c2349265f..66a3555f07d9 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -88,7 +88,6 @@ struct m25p { struct spi_device *spi; struct mutex lock; struct mtd_info mtd; - unsigned partitioned:1; u16 page_size; u16 addr_width; u8 erase_opcode; @@ -825,8 +824,6 @@ static int __devinit m25p_probe(struct spi_device *spi) struct m25p *flash; struct flash_info *info; unsigned i; - struct mtd_partition *parts = NULL; - int nr_parts = 0; struct mtd_part_parser_data ppdata; /* Platform data helps sort out which chip type we have, as @@ -970,28 +967,9 @@ static int __devinit m25p_probe(struct spi_device *spi) /* partitions should match sector boundaries; and it may be good to * use readonly partitions for writeprotected sectors (BP2..BP0). */ - nr_parts = parse_mtd_partitions(&flash->mtd, NULL, &parts, &ppdata); - - if (nr_parts <= 0 && data && data->parts) { - parts = data->parts; - nr_parts = data->nr_parts; - } - - if (nr_parts > 0) { - for (i = 0; i < nr_parts; i++) { - DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = " - "{.name = %s, .offset = 0x%llx, " - ".size = 0x%llx (%lldKiB) }\n", - i, parts[i].name, - (long long)parts[i].offset, - (long long)parts[i].size, - (long long)(parts[i].size >> 10)); - } - flash->partitioned = 1; - } - - return mtd_device_register(&flash->mtd, parts, nr_parts) == 1 ? - -ENODEV : 0; + return mtd_device_parse_register(&flash->mtd, NULL, &ppdata, + data ? data->parts : NULL, + data ? data->nr_parts : 0); } -- cgit v1.2.3 From 99add4228fce515fe113282147a0aab74afa29ae Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:36 +0400 Subject: mtd: fsl_elbc_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_elbc_nand.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 4d225ba33a64..915b4a4c06c2 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -843,7 +843,6 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev) struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl; static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", "ofpart", NULL }; - struct mtd_partition *parts; int ret; int bank; struct device *dev; @@ -936,11 +935,8 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev) /* First look for RedBoot table or partitions on the command * line, these take precedence over device tree information */ - ret = parse_mtd_partitions(&priv->mtd, part_probe_types, &parts, &ppdata); - if (ret < 0) - goto err; - - mtd_device_register(&priv->mtd, parts, ret); + mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata, + NULL, 0); printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n", (unsigned long long)res.start, priv->bank); -- cgit v1.2.3 From 73f36b3e251888ef224a3c90d3c408e02a1eb957 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:37 +0400 Subject: mtd: fsl_upm.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_upm.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index 714d8318c6ad..da92fed9f27b 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -193,9 +193,7 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun, goto err; ppdata.of_node = flash_np; - ret = parse_mtd_partitions(&fun->mtd, NULL, &fun->parts, &ppdata); - - ret = mtd_device_register(&fun->mtd, fun->parts, ret); + ret = mtd_device_parse_register(&fun->mtd, NULL, &ppdata, NULL, 0); err: of_node_put(flash_np); return ret; -- cgit v1.2.3 From a9093f064eb053c1b9fca8b8026577c0b3b9aa8a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:42 +0400 Subject: mtd: mpc5121_nfc.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mpc5121_nfc.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index 9380f96716f4..5ede64706346 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -654,7 +654,6 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) struct mpc5121_nfc_prv *prv; struct resource res; struct mtd_info *mtd; - struct mtd_partition *parts; struct nand_chip *chip; unsigned long regs_paddr, regs_size; const __be32 *chips_no; @@ -838,15 +837,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op) dev_set_drvdata(dev, mtd); /* Register device in MTD */ - retval = parse_mtd_partitions(mtd, NULL, &parts, &ppdata); - if (retval < 0) { - dev_err(dev, "Error parsing MTD partitions!\n"); - devm_free_irq(dev, prv->irq, mtd); - retval = -EINVAL; - goto error; - } - - retval = mtd_device_register(mtd, parts, retval); + retval = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); if (retval) { dev_err(dev, "Error adding MTD device!\n"); devm_free_irq(dev, prv->irq, mtd); -- cgit v1.2.3 From a9106497082c5b9d2b367159573127c2c9ced4b6 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:00:51 +0400 Subject: mtd: ndfc.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/ndfc.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index 1528734b7616..ee1713907b92 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -42,7 +42,6 @@ struct ndfc_controller { struct nand_chip chip; int chip_select; struct nand_hw_control ndfc_control; - struct mtd_partition *parts; }; static struct ndfc_controller ndfc_ctrl[NDFC_MAX_CS]; @@ -201,11 +200,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc, if (ret) goto err; - ret = parse_mtd_partitions(&ndfc->mtd, NULL, &ndfc->parts, &ppdata); - if (ret < 0) - goto err; - - ret = mtd_device_register(&ndfc->mtd, ndfc->parts, ret); + ret = mtd_device_parse_register(&ndfc->mtd, NULL, &ppdata, NULL, 0); err: of_node_put(flash_np); -- cgit v1.2.3 From b2a5a4878e97119e3b64d4646fd138820d513c28 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 2 Jun 2011 18:01:07 +0400 Subject: mtd: socrates_nand.c: use mtd_device_parse_register Replace custom invocations of parse_mtd_partitions and mtd_device_register with common mtd_device_parse_register call. This would bring: standard handling of all errors, fallback to default partitions, etc. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/socrates_nand.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index f4f79ecb5ba3..0fb24f9c2327 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -164,8 +164,6 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev) struct mtd_info *mtd; struct nand_chip *nand_chip; int res; - struct mtd_partition *partitions = NULL; - int num_partitions = 0; struct mtd_part_parser_data ppdata; /* Allocate memory for the device structure (and zero it) */ @@ -225,17 +223,10 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev) goto out; } - num_partitions = parse_mtd_partitions(mtd, NULL, &partitions, &ppdata); - if (num_partitions < 0) { - res = num_partitions; - goto release; - } - - res = mtd_device_register(mtd, partitions, num_partitions); + res = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0); if (!res) return res; -release: nand_release(mtd); out: -- cgit v1.2.3 From e1c10243df92822954b9b5e04d12dd2f23a39652 Mon Sep 17 00:00:00 2001 From: Kyungmin Park Date: Wed, 22 Jun 2011 14:16:49 +0900 Subject: mtd: OneNAND: Detect the correct NOP when 4KiB pagesize There are two different 4KiB pagesize chips KFM4G16Q4M series have NOP 4 with version ID 0x0131 But KFM4G16Q5M has NOP 1 with versoin ID 0x013e Note that Q5M means that it has NOP 1. Signed-off-by: Kyungmin Park Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/onenand_base.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index ac9e959802a7..51800a7ef7f8 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -3429,6 +3429,19 @@ static void onenand_check_features(struct mtd_info *mtd) else if (numbufs == 1) { this->options |= ONENAND_HAS_4KB_PAGE; this->options |= ONENAND_HAS_CACHE_PROGRAM; + /* + * There are two different 4KiB pagesize chips + * and no way to detect it by H/W config values. + * + * To detect the correct NOP for each chips, + * It should check the version ID as workaround. + * + * Now it has as following + * KFM4G16Q4M has NOP 4 with version ID 0x0131 + * KFM4G16Q5M has NOP 1 with versoin ID 0x013e + */ + if ((this->version_id & 0xf) == 0xe) + this->options |= ONENAND_HAS_NOP_1; } case ONENAND_DEVICE_DENSITY_2Gb: @@ -4054,6 +4067,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) this->ecclayout = &onenand_oob_128; mtd->subpage_sft = 2; } + if (ONENAND_IS_NOP_1(this)) + mtd->subpage_sft = 0; break; case 64: this->ecclayout = &onenand_oob_64; -- cgit v1.2.3 From ed764db2887aa90efb8c5a5d79775d5d18c26b27 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 23 Jun 2011 12:33:52 +0400 Subject: mtd: maps: drop edb7312 support EDB7312 isn't supported by mainline kernel, this driver wasn't working before recent fixes, the same functionality can be achieved via physmap, so drop it now. If the board support will ever be submitted to mainline, one either can revert this commit, or use physmap mtd map driver. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/Kconfig | 7 --- drivers/mtd/maps/Makefile | 1 - drivers/mtd/maps/edb7312.c | 135 --------------------------------------------- 3 files changed, 143 deletions(-) delete mode 100644 drivers/mtd/maps/edb7312.c (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 46eca3b3bcb0..891a9e644542 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -392,13 +392,6 @@ config MTD_AUTCPU12 This enables access to the NV-RAM on autronix autcpu12 board. If you have such a board, say 'Y'. -config MTD_EDB7312 - tristate "CFI Flash device mapped on EDB7312" - depends on ARCH_EDB7312 && MTD_CFI - help - This enables access to the CFI Flash on the Cogent EDB7312 board. - If you have such a board, say 'Y' here. - config MTD_IMPA7 tristate "JEDEC Flash device mapped on impA7" depends on ARM && MTD_JEDECPROBE diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index d6379fea42b8..45dcb8b14f22 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile @@ -39,7 +39,6 @@ obj-$(CONFIG_MTD_DBOX2) += dbox2-flash.o obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o obj-$(CONFIG_MTD_PCI) += pci.o obj-$(CONFIG_MTD_AUTCPU12) += autcpu12-nvram.o -obj-$(CONFIG_MTD_EDB7312) += edb7312.o obj-$(CONFIG_MTD_IMPA7) += impa7.o obj-$(CONFIG_MTD_FORTUNET) += fortunet.o obj-$(CONFIG_MTD_UCLINUX) += uclinux.o diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c deleted file mode 100644 index b07acd69277a..000000000000 --- a/drivers/mtd/maps/edb7312.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * Handle mapping of the NOR flash on Cogent EDB7312 boards - * - * Copyright 2002 SYSGO Real-Time Solutions GmbH - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define WINDOW_ADDR 0x00000000 /* physical properties of flash */ -#define WINDOW_SIZE 0x01000000 -#define BUSWIDTH 2 -#define FLASH_BLOCKSIZE_MAIN 0x20000 -#define FLASH_NUMBLOCKS_MAIN 128 -/* can be "cfi_probe", "jedec_probe", "map_rom", NULL }; */ -#define PROBETYPES { "cfi_probe", NULL } - -#define MSG_PREFIX "EDB7312-NOR:" /* prefix for our printk()'s */ -#define MTDID "edb7312-nor" /* for mtdparts= partitioning */ - -static struct mtd_info *mymtd; - -struct map_info edb7312nor_map = { - .name = "NOR flash on EDB7312", - .size = WINDOW_SIZE, - .bankwidth = BUSWIDTH, - .phys = WINDOW_ADDR, -}; - -/* - * MTD partitioning stuff - */ -static struct mtd_partition static_partitions[3] = -{ - { - .name = "ARMboot", - .size = 0x40000, - .offset = 0 - }, - { - .name = "Kernel", - .size = 0x200000, - .offset = 0x40000 - }, - { - .name = "RootFS", - .size = 0xDC0000, - .offset = 0x240000 - }, -}; - -static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; - -static int mtd_parts_nb = 0; -static struct mtd_partition *mtd_parts = 0; - -static int __init init_edb7312nor(void) -{ - static const char *rom_probe_types[] = PROBETYPES; - const char **type; - const char *part_type = 0; - - printk(KERN_NOTICE MSG_PREFIX "0x%08x at 0x%08x\n", - WINDOW_SIZE, WINDOW_ADDR); - edb7312nor_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); - - if (!edb7312nor_map.virt) { - printk(MSG_PREFIX "failed to ioremap\n"); - return -EIO; - } - - simple_map_init(&edb7312nor_map); - - mymtd = 0; - type = rom_probe_types; - for(; !mymtd && *type; type++) { - mymtd = do_map_probe(*type, &edb7312nor_map); - } - if (mymtd) { - mymtd->owner = THIS_MODULE; - mymtd->name = MTDID; - - mtd_parts_nb = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0); - if (mtd_parts_nb > 0) - part_type = "detected"; - - if (mtd_parts_nb == 0) { - mtd_parts = static_partitions; - mtd_parts_nb = ARRAY_SIZE(static_partitions); - part_type = "static"; - } - - if (mtd_parts_nb == 0) - printk(KERN_NOTICE MSG_PREFIX "no partition info available\n"); - else - printk(KERN_NOTICE MSG_PREFIX - "using %s partition definition\n", part_type); - /* Register the whole device first. */ - mtd_device_register(mymtd, NULL, 0); - mtd_device_register(mymtd, mtd_parts, mtd_parts_nb); - return 0; - } - - iounmap((void *)edb7312nor_map.virt); - return -ENXIO; -} - -static void __exit cleanup_edb7312nor(void) -{ - if (mymtd) { - mtd_device_unregister(mymtd); - map_destroy(mymtd); - } - if (edb7312nor_map.virt) { - iounmap((void *)edb7312nor_map.virt); - edb7312nor_map.virt = 0; - } -} - -module_init(init_edb7312nor); -module_exit(cleanup_edb7312nor); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Marius Groeger "); -MODULE_DESCRIPTION("Generic configurable MTD map driver"); -- cgit v1.2.3 From 050f01258319f2d2e66a131b7ddb6b5df5aa3af7 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 23 Jun 2011 12:33:52 +0400 Subject: mtd: nand: drop edb7312 support EDB7312 isn't supported by mainline kernel, so drop it now. If the board support will ever be submitted to mainline, one can revert this commit. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 7 -- drivers/mtd/nand/Makefile | 1 - drivers/mtd/nand/edb7312.c | 188 --------------------------------------------- 3 files changed, 196 deletions(-) delete mode 100644 drivers/mtd/nand/edb7312.c (limited to 'drivers') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 4c3425235adc..17235d097774 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -83,13 +83,6 @@ config MTD_NAND_DENALI_SCRATCH_REG_ADDR scratch register here to enable this feature. On Intel Moorestown boards, the scratch register is at 0xFF108018. -config MTD_NAND_EDB7312 - tristate "Support for Cirrus Logic EBD7312 evaluation board" - depends on ARCH_EDB7312 - help - This enables the driver for the Cirrus Logic EBD7312 evaluation - board to access the onboard NAND Flash. - config MTD_NAND_H1900 tristate "iPAQ H1900 flash" depends on ARCH_PXA diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index 5745d831168e..c9334e9af912 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_MTD_NAND_SPIA) += spia.o obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o obj-$(CONFIG_MTD_NAND_DENALI) += denali.o -obj-$(CONFIG_MTD_NAND_EDB7312) += edb7312.o obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o obj-$(CONFIG_MTD_NAND_BF5XX) += bf5xx_nand.o obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB) += ppchameleonevb.o diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c deleted file mode 100644 index 0b1bb91d46a9..000000000000 --- a/drivers/mtd/nand/edb7312.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * drivers/mtd/nand/edb7312.c - * - * Copyright (C) 2002 Marius Gröger (mag@sysgo.de) - * - * Derived from drivers/mtd/nand/autcpu12.c - * Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Overview: - * This is a device driver for the NAND flash device found on the - * CLEP7312 board which utilizes the Toshiba TC58V64AFT part. This is - * a 64Mibit (8MiB x 8 bits) NAND flash device. - */ - -#include -#include -#include -#include -#include -#include -#include -#include /* for CLPS7111_VIRT_BASE */ -#include -#include - -/* - * MTD structure for EDB7312 board - */ -static struct mtd_info *ep7312_mtd = NULL; - -/* - * Values specific to the EDB7312 board (used with EP7312 processor) - */ -#define EP7312_FIO_PBASE 0x10000000 /* Phys address of flash */ -#define EP7312_PXDR 0x0001 /* - * IO offset to Port B data register - * where the CLE, ALE and NCE pins - * are wired to. - */ -#define EP7312_PXDDR 0x0041 /* - * IO offset to Port B data direction - * register so we can control the IO - * lines. - */ - -/* - * Module stuff - */ - -static unsigned long ep7312_fio_pbase = EP7312_FIO_PBASE; -static void __iomem *ep7312_pxdr = (void __iomem *)EP7312_PXDR; -static void __iomem *ep7312_pxddr = (void __iomem *)EP7312_PXDDR; - -/* - * Define static partitions for flash device - */ -static struct mtd_partition partition_info[] = { - {.name = "EP7312 Nand Flash", - .offset = 0, - .size = 8 * 1024 * 1024} -}; - -#define NUM_PARTITIONS 1 - -/* - * hardware specific access to control-lines - * - * NAND_NCE: bit 0 -> bit 6 (bit 7 = 1) - * NAND_CLE: bit 1 -> bit 4 - * NAND_ALE: bit 2 -> bit 5 - */ -static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl) -{ - struct nand_chip *chip = mtd->priv; - - if (ctrl & NAND_CTRL_CHANGE) { - unsigned char bits = 0x80; - - bits |= (ctrl & (NAND_CLE | NAND_ALE)) << 3; - bits |= (ctrl & NAND_NCE) ? 0x00 : 0x40; - - clps_writeb((clps_readb(ep7312_pxdr) & 0xF0) | bits, - ep7312_pxdr); - } - if (cmd != NAND_CMD_NONE) - writeb(cmd, chip->IO_ADDR_W); -} - -/* - * read device ready pin - */ -static int ep7312_device_ready(struct mtd_info *mtd) -{ - return 1; -} - -/* - * Main initialization routine - */ -static int __init ep7312_init(void) -{ - struct nand_chip *this; - void __iomem *ep7312_fio_base; - - /* Allocate memory for MTD device structure and private data */ - ep7312_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL); - if (!ep7312_mtd) { - printk("Unable to allocate EDB7312 NAND MTD device structure.\n"); - return -ENOMEM; - } - - /* map physical address */ - ep7312_fio_base = ioremap(ep7312_fio_pbase, SZ_1K); - if (!ep7312_fio_base) { - printk("ioremap EDB7312 NAND flash failed\n"); - kfree(ep7312_mtd); - return -EIO; - } - - /* Get pointer to private data */ - this = (struct nand_chip *)(&ep7312_mtd[1]); - - /* Initialize structures */ - memset(ep7312_mtd, 0, sizeof(struct mtd_info)); - memset(this, 0, sizeof(struct nand_chip)); - - /* Link the private data with the MTD structure */ - ep7312_mtd->priv = this; - ep7312_mtd->owner = THIS_MODULE; - - /* - * Set GPIO Port B control register so that the pins are configured - * to be outputs for controlling the NAND flash. - */ - clps_writeb(0xf0, ep7312_pxddr); - - /* insert callbacks */ - this->IO_ADDR_R = ep7312_fio_base; - this->IO_ADDR_W = ep7312_fio_base; - this->cmd_ctrl = ep7312_hwcontrol; - this->dev_ready = ep7312_device_ready; - /* 15 us command delay time */ - this->chip_delay = 15; - - /* Scan to find existence of the device */ - if (nand_scan(ep7312_mtd, 1)) { - iounmap((void *)ep7312_fio_base); - kfree(ep7312_mtd); - return -ENXIO; - } - ep7312_mtd->name = "edb7312-nand"; - - /* Register the partitions */ - mtd_device_register(ep7312_mtd, NULL, 0, - partition_info, NUM_PARTITIONS); - - /* Return happy */ - return 0; -} - -module_init(ep7312_init); - -/* - * Clean up routine - */ -static void __exit ep7312_cleanup(void) -{ - struct nand_chip *this = (struct nand_chip *)&ep7312_mtd[1]; - - /* Release resources, unregister device */ - nand_release(ap7312_mtd); - - /* Release io resource */ - iounmap(this->IO_ADDR_R); - - /* Free the MTD device structure */ - kfree(ep7312_mtd); -} - -module_exit(ep7312_cleanup); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Marius Groeger "); -MODULE_DESCRIPTION("MTD map driver for Cogent EDB7312 board"); -- cgit v1.2.3 From 3165f44bcd4b987cbcc694af739ab955b561e05b Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 23 Jun 2011 15:23:08 +0400 Subject: mtd: hide parse_mtd_partitions There is no need to export parse_mtd_partitions() now , as it's fully handled by registration functions. So move the definition to private header and remove respective EXPORT_SYMBOL_GPL. Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdcore.h | 3 +++ drivers/mtd/mtdpart.c | 1 - 2 files changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h index 0ed6126b4c1f..961a38408542 100644 --- a/drivers/mtd/mtdcore.h +++ b/drivers/mtd/mtdcore.h @@ -15,6 +15,9 @@ extern int del_mtd_device(struct mtd_info *mtd); extern int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int); extern int del_mtd_partitions(struct mtd_info *); +extern int parse_mtd_partitions(struct mtd_info *master, const char **types, + struct mtd_partition **pparts, + struct mtd_part_parser_data *data); #define mtd_for_each_device(mtd) \ for ((mtd) = __mtd_next_device(0); \ diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 9e8ee054135a..6997c6cdc471 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -778,7 +778,6 @@ int parse_mtd_partitions(struct mtd_info *master, const char **types, } return ret; } -EXPORT_SYMBOL_GPL(parse_mtd_partitions); int mtd_is_partition(struct mtd_info *mtd) { -- cgit v1.2.3 From 953b3bd1911260b8acd8f35fa26440c1a943e59a Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 23 Jun 2011 15:26:14 +0400 Subject: mtd: remove put_partition_parser() from public header There is no need to pollute public header with a definition private to mtdpart.c. Move it from mtd/partitions.h to mtdpart.c Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdpart.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index 6997c6cdc471..c90b7ba362d7 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -706,6 +706,8 @@ static struct mtd_part_parser *get_partition_parser(const char *name) return ret; } +#define put_partition_parser(p) do { module_put((p)->owner); } while (0) + int register_mtd_parser(struct mtd_part_parser *p) { spin_lock(&part_parser_lock); -- cgit v1.2.3 From 15c60a508ab3393e68b7ccb3528981ccacf9c0f9 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Thu, 23 Jun 2011 15:33:15 +0400 Subject: mtd: drop mtd_device_register mtd_device_register() is a limited version of mtd_device_parse_register. Replace it with macro calling mtd_device_parse_register(). Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdcore.c | 23 ----------------------- 1 file changed, 23 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index e18639980f7a..f9cc2d2cb5cb 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -428,29 +428,6 @@ out_error: return ret; } -/** - * mtd_device_register - register an MTD device. - * - * @master: the MTD device to register - * @parts: the partitions to register - only valid if nr_parts > 0 - * @nr_parts: the number of partitions in parts. If zero then the full MTD - * device is registered - * - * Register an MTD device with the system and optionally, a number of - * partitions. If nr_parts is 0 then the whole device is registered, otherwise - * only the partitions are registered. To register both the full device *and* - * the partitions, call mtd_device_register() twice, once with nr_parts == 0 - * and once equal to the number of partitions. - */ -int mtd_device_register(struct mtd_info *master, - const struct mtd_partition *parts, - int nr_parts) -{ - return parts ? add_mtd_partitions(master, parts, nr_parts) : - add_mtd_device(master); -} -EXPORT_SYMBOL_GPL(mtd_device_register); - /** * mtd_device_parse_register - parse partitions and register an MTD device. * -- cgit v1.2.3 From 7854d3f7495b11be1570cd3e2318674d8f9ed797 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 23 Jun 2011 14:12:08 -0700 Subject: mtd: spelling, capitalization, uniformity Therefor -> Therefore [Intern], [Internal] -> [INTERN] [REPLACABLE] -> [REPLACEABLE] syndrom, syndom -> syndrome ecc -> ECC buswith -> buswidth endianess -> endianness dont -> don't occures -> occurs independend -> independent wihin -> within erease -> erase blockes -> blocks ... Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/chips/jedec_probe.c | 2 +- drivers/mtd/devices/doc2000.c | 2 +- drivers/mtd/devices/doc2001.c | 2 +- drivers/mtd/devices/doc2001plus.c | 2 +- drivers/mtd/devices/docecc.c | 2 +- drivers/mtd/mtdchar.c | 6 +-- drivers/mtd/nand/au1550nd.c | 29 +++++----- drivers/mtd/nand/cafe_nand.c | 2 +- drivers/mtd/nand/diskonchip.c | 4 +- drivers/mtd/nand/nand_base.c | 105 ++++++++++++++++++------------------- drivers/mtd/nand/nand_bbt.c | 8 +-- drivers/mtd/nand/nand_ecc.c | 10 ++-- drivers/mtd/nand/rtc_from4.c | 2 +- drivers/mtd/onenand/onenand_base.c | 12 ++--- drivers/mtd/sm_ftl.c | 2 +- 15 files changed, 93 insertions(+), 97 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index ea832ea0e4aa..d40c410a3241 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -1914,7 +1914,7 @@ static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi) * (oh and incidentaly the jedec spec - 3.5.3.3) the reset * sequence is *supposed* to be 0xaa at 0x5555, 0x55 at * 0x2aaa, 0xF0 at 0x5555 this will not affect the AMD chips - * as they will ignore the writes and dont care what address + * as they will ignore the writes and don't care what address * the F0 is written to */ if (cfi->addr_unlock1) { DEBUG( MTD_DEBUG_LEVEL3, diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index f7fbf6025ef2..ed15447c392e 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -699,7 +699,7 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, #ifdef ECC_DEBUG printk(KERN_ERR "DiskOnChip ECC Error: Read at %lx\n", (long)from); #endif - /* Read the ECC syndrom through the DiskOnChip ECC + /* Read the ECC syndrome through the DiskOnChip ECC logic. These syndrome will be all ZERO when there is no error */ for (i = 0; i < 6; i++) { diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 241192f05bc8..c6ea8604a3c3 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -464,7 +464,7 @@ static int doc_read (struct mtd_info *mtd, loff_t from, size_t len, #ifdef ECC_DEBUG printk("DiskOnChip ECC Error: Read at %lx\n", (long)from); #endif - /* Read the ECC syndrom through the DiskOnChip ECC logic. + /* Read the ECC syndrome through the DiskOnChip ECC logic. These syndrome will be all ZERO when there is no error */ for (i = 0; i < 6; i++) { syndrome[i] = ReadDOC(docptr, ECCSyndrome0 + i); diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index 09ae0adc3ad0..fe82fbfa155e 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -655,7 +655,7 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, #ifdef ECC_DEBUG printk("DiskOnChip ECC Error: Read at %lx\n", (long)from); #endif - /* Read the ECC syndrom through the DiskOnChip ECC logic. + /* Read the ECC syndrome through the DiskOnChip ECC logic. These syndrome will be all ZERO when there is no error */ for (i = 0; i < 6; i++) syndrome[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i); diff --git a/drivers/mtd/devices/docecc.c b/drivers/mtd/devices/docecc.c index 37ef29a73ee4..4a1c39b6f37d 100644 --- a/drivers/mtd/devices/docecc.c +++ b/drivers/mtd/devices/docecc.c @@ -2,7 +2,7 @@ * ECC algorithm for M-systems disk on chip. We use the excellent Reed * Solmon code of Phil Karn (karn@ka9q.ampr.org) available under the * GNU GPL License. The rest is simply to convert the disk on chip - * syndrom into a standard syndom. + * syndrome into a standard syndome. * * Author: Fabrice Bellard (fabrice.bellard@netgem.com) * Copyright (C) 2000 Netgem S.A. diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 49e20a497084..c60067b1f07a 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -233,9 +233,9 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t default: ret = mtd->read(mtd, *ppos, len, &retlen, kbuf); } - /* Nand returns -EBADMSG on ecc errors, but it returns + /* Nand returns -EBADMSG on ECC errors, but it returns * the data. For our userspace tools it is important - * to dump areas with ecc errors ! + * to dump areas with ECC errors! * For kernel internal usage it also might return -EUCLEAN * to signal the caller that a bitflip has occurred and has * been corrected by the ECC algorithm. @@ -883,7 +883,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) } #endif - /* This ioctl is being deprecated - it truncates the ecc layout */ + /* This ioctl is being deprecated - it truncates the ECC layout */ case ECCGETLAYOUT: { struct nand_ecclayout_user *usrlay; diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index e7767eef4505..60d58d3f1fcc 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -48,7 +48,7 @@ static const struct mtd_partition partition_info[] = { * au_read_byte - read one byte from the chip * @mtd: MTD device structure * - * read function for 8bit buswith + * read function for 8bit buswidth */ static u_char au_read_byte(struct mtd_info *mtd) { @@ -63,7 +63,7 @@ static u_char au_read_byte(struct mtd_info *mtd) * @mtd: MTD device structure * @byte: pointer to data byte to write * - * write function for 8it buswith + * write function for 8it buswidth */ static void au_write_byte(struct mtd_info *mtd, u_char byte) { @@ -73,11 +73,10 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte) } /** - * au_read_byte16 - read one byte endianess aware from the chip + * au_read_byte16 - read one byte endianness aware from the chip * @mtd: MTD device structure * - * read function for 16bit buswith with - * endianess conversion + * read function for 16bit buswidth with endianness conversion */ static u_char au_read_byte16(struct mtd_info *mtd) { @@ -88,12 +87,11 @@ static u_char au_read_byte16(struct mtd_info *mtd) } /** - * au_write_byte16 - write one byte endianess aware to the chip + * au_write_byte16 - write one byte endianness aware to the chip * @mtd: MTD device structure * @byte: pointer to data byte to write * - * write function for 16bit buswith with - * endianess conversion + * write function for 16bit buswidth with endianness conversion */ static void au_write_byte16(struct mtd_info *mtd, u_char byte) { @@ -106,8 +104,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte) * au_read_word - read one word from the chip * @mtd: MTD device structure * - * read function for 16bit buswith without - * endianess conversion + * read function for 16bit buswidth without endianness conversion */ static u16 au_read_word(struct mtd_info *mtd) { @@ -123,7 +120,7 @@ static u16 au_read_word(struct mtd_info *mtd) * @buf: data buffer * @len: number of bytes to write * - * write function for 8bit buswith + * write function for 8bit buswidth */ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len) { @@ -142,7 +139,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len) * @buf: buffer to store date * @len: number of bytes to read * - * read function for 8bit buswith + * read function for 8bit buswidth */ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len) { @@ -161,7 +158,7 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len) * @buf: buffer containing the data to compare * @len: number of bytes to compare * - * verify function for 8bit buswith + * verify function for 8bit buswidth */ static int au_verify_buf(struct mtd_info *mtd, const u_char *buf, int len) { @@ -183,7 +180,7 @@ static int au_verify_buf(struct mtd_info *mtd, const u_char *buf, int len) * @buf: data buffer * @len: number of bytes to write * - * write function for 16bit buswith + * write function for 16bit buswidth */ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len) { @@ -205,7 +202,7 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len) * @buf: buffer to store date * @len: number of bytes to read * - * read function for 16bit buswith + * read function for 16bit buswidth */ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) { @@ -226,7 +223,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) * @buf: buffer containing the data to compare * @len: number of bytes to compare * - * verify function for 16bit buswith + * verify function for 16bit buswidth */ static int au_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len) { diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index f6eb66432c81..11a56df89eab 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -370,7 +370,7 @@ static int cafe_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip, return 1; } /** - * cafe_nand_read_page_syndrome - {REPLACABLE] hardware ecc syndrom based page read + * cafe_nand_read_page_syndrome - [REPLACEABLE] hardware ecc syndrome based page read * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index b657d7f9b05c..de93a989aa54 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -132,7 +132,7 @@ static struct rs_control *rs_decoder; /* * The HW decoder in the DoC ASIC's provides us a error syndrome, - * which we must convert to a standard syndrom usable by the generic + * which we must convert to a standard syndrome usable by the generic * Reed-Solomon library code. * * Fabrice Bellard figured this out in the old docecc code. I added @@ -153,7 +153,7 @@ static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc) ds[3] = ((ecc[3] & 0xc0) >> 6) | ((ecc[0] & 0xff) << 2); parity = ecc[1]; - /* Initialize the syndrom buffer */ + /* Initialize the syndrome buffer */ for (i = 0; i < NROOTS; i++) s[i] = ds[0]; /* diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 408e1d0abfd1..237d7daa189c 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -21,7 +21,7 @@ * TODO: * Enable cached programming for 2k page size chips * Check, if mtd->ecctype should be set to MTD_ECC_HW - * if we have HW ecc support. + * if we have HW ECC support. * The AG-AND chips have nice features for speed improvement, * which are not supported yet. Read / program 4 pages in one go. * BBT table is not serialized, has to be fixed @@ -159,7 +159,7 @@ static void nand_release_device(struct mtd_info *mtd) * nand_read_byte - [DEFAULT] read one byte from the chip * @mtd: MTD device structure * - * Default read function for 8bit buswith. + * Default read function for 8bit buswidth */ static uint8_t nand_read_byte(struct mtd_info *mtd) { @@ -169,9 +169,11 @@ static uint8_t nand_read_byte(struct mtd_info *mtd) /** * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip + * nand_read_byte16 - [DEFAULT] read one byte endianness aware from the chip * @mtd: MTD device structure * - * Default read function for 16bit buswith with endianess conversion. + * Default read function for 16bit buswidth with endianness conversion. + * */ static uint8_t nand_read_byte16(struct mtd_info *mtd) { @@ -183,7 +185,7 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd) * nand_read_word - [DEFAULT] read one word from the chip * @mtd: MTD device structure * - * Default read function for 16bit buswith without endianess conversion. + * Default read function for 16bit buswidth without endianness conversion. */ static u16 nand_read_word(struct mtd_info *mtd) { @@ -220,7 +222,7 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr) * @buf: data buffer * @len: number of bytes to write * - * Default write function for 8bit buswith. + * Default write function for 8bit buswidth. */ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -237,7 +239,7 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) * @buf: buffer to store date * @len: number of bytes to read * - * Default read function for 8bit buswith. + * Default read function for 8bit buswidth. */ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { @@ -254,7 +256,7 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) * @buf: buffer containing the data to compare * @len: number of bytes to compare * - * Default verify function for 8bit buswith. + * Default verify function for 8bit buswidth. */ static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -273,7 +275,7 @@ static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len) * @buf: data buffer * @len: number of bytes to write * - * Default write function for 16bit buswith. + * Default write function for 16bit buswidth. */ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -293,7 +295,7 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) * @buf: buffer to store date * @len: number of bytes to read * - * Default read function for 16bit buswith. + * Default read function for 16bit buswidth. */ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) { @@ -312,7 +314,7 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len) * @buf: buffer containing the data to compare * @len: number of bytes to compare * - * Default verify function for 16bit buswith. + * Default verify function for 16bit buswidth. */ static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len) { @@ -499,7 +501,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo) } } -/* Wait for the ready pin, after a command. The timeout is catched later */ +/* Wait for the ready pin, after a command. The timeout is caught later. */ void nand_wait_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; @@ -510,7 +512,7 @@ void nand_wait_ready(struct mtd_info *mtd) return panic_nand_wait_ready(mtd, 400); led_trigger_event(nand_led_trigger, LED_FULL); - /* Wait until command is processed or timeout occures */ + /* Wait until command is processed or timeout occurs */ do { if (chip->dev_ready(mtd)) break; @@ -629,8 +631,8 @@ static void nand_command(struct mtd_info *mtd, unsigned int command, * @page_addr: the page address for this command, -1 if none * * Send command to NAND device. This is the version for the new large page - * devices We dont have the separate regions as we have in the small page - * devices. We must emulate NAND_CMD_READOOB to keep the code compatible. + * devices. We don't have the separate regions as we have in the small page + * devices. We must emulate NAND_CMD_READOOB to keep the code compatible. */ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, int column, int page_addr) @@ -754,7 +756,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, static void panic_nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state) { - /* Hardware controller shared among independend devices */ + /* Hardware controller shared among independent devices */ chip->controller->active = chip; chip->state = new_state; } @@ -1032,14 +1034,13 @@ out: EXPORT_SYMBOL(nand_lock); /** - * nand_read_page_raw - [Intern] read raw page data without ecc + * nand_read_page_raw - [INTERN] read raw page data without ecc * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data * @page: page number to read * - * Not for syndrome calculating ecc controllers, which use a special oob - * layout. + * Not for syndrome calculating ECC controllers, which use a special oob layout. */ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1050,7 +1051,7 @@ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_read_page_raw_syndrome - [Intern] read raw page data without ecc + * nand_read_page_raw_syndrome - [INTERN] read raw page data without ecc * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data @@ -1093,7 +1094,7 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd, } /** - * nand_read_page_swecc - [REPLACABLE] software ecc based page read function + * nand_read_page_swecc - [REPLACEABLE] software ECC based page read function * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data @@ -1134,7 +1135,7 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_read_subpage - [REPLACABLE] software ecc based sub-page read function + * nand_read_subpage - [REPLACEABLE] software ECC based sub-page read function * @mtd: mtd info structure * @chip: nand chip info structure * @data_offs: offset of requested data within the page @@ -1152,7 +1153,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, int busw = (chip->options & NAND_BUSWIDTH_16) ? 2 : 1; int index = 0; - /* Column address wihin the page aligned to ECC size (256bytes) */ + /* Column address within the page aligned to ECC size (256bytes) */ start_step = data_offs / chip->ecc.size; end_step = (data_offs + readlen - 1) / chip->ecc.size; num_steps = end_step - start_step + 1; @@ -1175,7 +1176,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, /* * The performance is faster if we position offsets according to - * ecc.pos. Let's make sure that there are no gaps in ecc positions. + * ecc.pos. Let's make sure that there are no gaps in ECC positions. */ for (i = 0; i < eccfrag_len - 1; i++) { if (eccpos[i + start_step * chip->ecc.bytes] + 1 != @@ -1189,7 +1190,7 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); } else { /* - * Send the command to read the particular ecc bytes take care + * Send the command to read the particular ECC bytes take care * about buswidth alignment in read_buf. */ index = start_step * chip->ecc.bytes; @@ -1224,14 +1225,13 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_read_page_hwecc - [REPLACABLE] hardware ecc based page read function + * nand_read_page_hwecc - [REPLACEABLE] hardware ECC based page read function * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data * @page: page number to read * - * Not for syndrome calculating ecc controllers which need a special oob - * layout. + * Not for syndrome calculating ECC controllers which need a special oob layout. */ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) @@ -1270,7 +1270,7 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_read_page_hwecc_oob_first - [REPLACABLE] hw ecc, read oob first + * nand_read_page_hwecc_oob_first - [REPLACEABLE] hw ecc, read oob first * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data @@ -1318,7 +1318,7 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd, } /** - * nand_read_page_syndrome - [REPLACABLE] hardware ecc syndrom based page read + * nand_read_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page read * @mtd: mtd info structure * @chip: nand chip info structure * @buf: buffer to store read data @@ -1373,7 +1373,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_transfer_oob - [Internal] Transfer oob to client buffer + * nand_transfer_oob - [INTERN] Transfer oob to client buffer * @chip: nand chip structure * @oob: oob destination address * @ops: oob ops structure @@ -1421,7 +1421,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, } /** - * nand_do_read_ops - [Internal] Read data with ECC + * nand_do_read_ops - [INTERN] Read data with ECC * @mtd: MTD device structure * @from: offset to read from * @ops: oob ops structure @@ -1599,7 +1599,7 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, } /** - * nand_read_oob_std - [REPLACABLE] the most common OOB data read function + * nand_read_oob_std - [REPLACEABLE] the most common OOB data read function * @mtd: mtd info structure * @chip: nand chip info structure * @page: page number to read @@ -1617,7 +1617,7 @@ static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_read_oob_syndrome - [REPLACABLE] OOB data read function for HW ECC + * nand_read_oob_syndrome - [REPLACEABLE] OOB data read function for HW ECC * with syndromes * @mtd: mtd info structure * @chip: nand chip info structure @@ -1656,7 +1656,7 @@ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_write_oob_std - [REPLACABLE] the most common OOB data write function + * nand_write_oob_std - [REPLACEABLE] the most common OOB data write function * @mtd: mtd info structure * @chip: nand chip info structure * @page: page number to write @@ -1679,7 +1679,7 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_write_oob_syndrome - [REPLACABLE] OOB data write function for HW ECC + * nand_write_oob_syndrome - [REPLACEABLE] OOB data write function for HW ECC * with syndrome - only for large page flash * @mtd: mtd info structure * @chip: nand chip info structure @@ -1738,7 +1738,7 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd, } /** - * nand_do_read_oob - [Intern] NAND read out-of-band + * nand_do_read_oob - [INTERN] NAND read out-of-band * @mtd: MTD device structure * @from: offset to read from * @ops: oob operations description structure @@ -1878,13 +1878,12 @@ out: /** - * nand_write_page_raw - [Intern] raw page write function + * nand_write_page_raw - [INTERN] raw page write function * @mtd: mtd info structure * @chip: nand chip info structure * @buf: data buffer * - * Not for syndrome calculating ecc controllers, which use a special oob - * layout. + * Not for syndrome calculating ECC controllers, which use a special oob layout. */ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf) @@ -1894,7 +1893,7 @@ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_write_page_raw_syndrome - [Intern] raw page write function + * nand_write_page_raw_syndrome - [INTERN] raw page write function * @mtd: mtd info structure * @chip: nand chip info structure * @buf: data buffer @@ -1933,7 +1932,7 @@ static void nand_write_page_raw_syndrome(struct mtd_info *mtd, chip->write_buf(mtd, oob, size); } /** - * nand_write_page_swecc - [REPLACABLE] software ecc based page write function + * nand_write_page_swecc - [REPLACEABLE] software ECC based page write function * @mtd: mtd info structure * @chip: nand chip info structure * @buf: data buffer @@ -1948,7 +1947,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *p = buf; uint32_t *eccpos = chip->ecc.layout->eccpos; - /* Software ecc calculation */ + /* Software ECC calculation */ for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) chip->ecc.calculate(mtd, p, &ecc_calc[i]); @@ -1959,7 +1958,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_write_page_hwecc - [REPLACABLE] hardware ecc based page write function + * nand_write_page_hwecc - [REPLACEABLE] hardware ECC based page write function * @mtd: mtd info structure * @chip: nand chip info structure * @buf: data buffer @@ -1987,7 +1986,7 @@ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_write_page_syndrome - [REPLACABLE] hardware ecc syndrom based page write + * nand_write_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page write * @mtd: mtd info structure * @chip: nand chip info structure * @buf: data buffer @@ -2052,7 +2051,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, chip->ecc.write_page(mtd, chip, buf); /* - * Cached progamming disabled for now, Not sure if its worth the + * Cached progamming disabled for now. Not sure if it's worth the * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s). */ cached = 0; @@ -2087,7 +2086,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip, } /** - * nand_fill_oob - [Internal] Transfer client buffer to oob + * nand_fill_oob - [INTERN] Transfer client buffer to oob * @mtd: MTD device structure * @oob: oob data buffer * @len: oob data write length @@ -2145,7 +2144,7 @@ static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len, #define NOTALIGNED(x) ((x & (chip->subpagesize - 1)) != 0) /** - * nand_do_write_ops - [Internal] NAND write with ECC + * nand_do_write_ops - [INTERN] NAND write with ECC * @mtd: MTD device structure * @to: offset to write to * @ops: oob operations description structure @@ -2454,7 +2453,7 @@ out: } /** - * single_erease_cmd - [GENERIC] NAND standard block erase command function + * single_erase_cmd - [GENERIC] NAND standard block erase command function * @mtd: MTD device structure * @page: the page address of the block which will be erased * @@ -2469,7 +2468,7 @@ static void single_erase_cmd(struct mtd_info *mtd, int page) } /** - * multi_erease_cmd - [GENERIC] AND specific block erase command function + * multi_erase_cmd - [GENERIC] AND specific block erase command function * @mtd: MTD device structure * @page: the page address of the block which will be erased * @@ -2500,7 +2499,7 @@ static int nand_erase(struct mtd_info *mtd, struct erase_info *instr) #define BBT_PAGE_MASK 0xffffff3f /** - * nand_erase_nand - [Internal] erase block(s) + * nand_erase_nand - [INTERN] erase block(s) * @mtd: MTD device structure * @instr: erase instruction * @allowbbt: allow erasing the bbt area @@ -2550,7 +2549,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, * If BBT requires refresh, set the BBT page mask to see if the BBT * should be rewritten. Otherwise the mask is set to 0xffffffff which * can not be matched. This is also done when the bbt is actually - * erased to avoid recusrsive updates. + * erased to avoid recursive updates. */ if (chip->options & BBT_AUTO_REFRESH && !allowbbt) bbt_masked_page = chip->bbt_td->pages[chipnr] & BBT_PAGE_MASK; @@ -2824,7 +2823,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; - /* Try ONFI for unknow chip or LP */ + /* Try ONFI for unknown chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I') @@ -3395,7 +3394,7 @@ int nand_scan_tail(struct mtd_info *mtd) */ chip->ecc.steps = mtd->writesize / chip->ecc.size; if (chip->ecc.steps * chip->ecc.size != mtd->writesize) { - printk(KERN_WARNING "Invalid ecc parameters\n"); + printk(KERN_WARNING "Invalid ECC parameters\n"); BUG(); } chip->ecc.total = chip->ecc.steps * chip->ecc.bytes; diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 8875d6db2455..f30807c3a48d 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -149,7 +149,7 @@ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td) * add_marker_len - compute the length of the marker in data area * @td: BBT descriptor used for computation * - * The length will be 0 if the markeris located in OOB area. + * The length will be 0 if the marker is located in OOB area. */ static u32 add_marker_len(struct nand_bbt_descr *td) { @@ -170,7 +170,7 @@ static u32 add_marker_len(struct nand_bbt_descr *td) * @buf: temporary buffer * @page: the starting page * @num: the number of bbt descriptors to read - * @td: the bbt describtion table + * @td: the bbt describtion table * @offs: offset in the memory table * * Read the bad block table starting from page. @@ -1241,7 +1241,7 @@ static struct nand_bbt_descr agand_flashbased = { .pattern = scan_agand_pattern }; -/* Generic flash bbt decriptors */ +/* Generic flash bbt descriptors */ static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' }; static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' }; @@ -1286,7 +1286,7 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = { }; /** - * nand_create_default_bbt_descr - [Internal] Creates a BBT descriptor structure + * nand_create_default_bbt_descr - [INTERN] Creates a BBT descriptor structure * @this: NAND chip to create descriptor for * * This function allocates and initializes a nand_bbt_descr for BBM detection diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 271b8e735e8f..b7cfe0d37121 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -110,7 +110,7 @@ static const char bitsperbyte[256] = { /* * addressbits is a lookup table to filter out the bits from the xor-ed - * ecc data that identify the faulty location. + * ECC data that identify the faulty location. * this is only used for repairing parity * see the comments in nand_correct_data for more details */ @@ -153,7 +153,7 @@ static const char addressbits[256] = { * __nand_calculate_ecc - [NAND Interface] Calculate 3-byte ECC for 256/512-byte * block * @buf: input buffer with raw data - * @eccsize: data bytes per ecc step (256 or 512) + * @eccsize: data bytes per ECC step (256 or 512) * @code: output buffer with ECC */ void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize, @@ -348,7 +348,7 @@ void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize, rp17 = (par ^ rp16) & 0xff; /* - * Finally calculate the ecc bits. + * Finally calculate the ECC bits. * Again here it might seem that there are performance optimisations * possible, but benchmarks showed that on the system this is developed * the code below is the fastest @@ -436,7 +436,7 @@ EXPORT_SYMBOL(nand_calculate_ecc); * @buf: raw data read from the chip * @read_ecc: ECC from the chip * @calc_ecc: the ECC calculated from raw data - * @eccsize: data bytes per ecc step (256 or 512) + * @eccsize: data bytes per ECC step (256 or 512) * * Detect and correct a 1 bit error for eccsize byte block */ @@ -505,7 +505,7 @@ int __nand_correct_data(unsigned char *buf, } /* count nr of bits; use table lookup, faster than calculating it */ if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1) - return 1; /* error in ecc data; no action needed */ + return 1; /* error in ECC data; no action needed */ printk(KERN_ERR "uncorrectable error : "); return -1; diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c index a07da2a3beee..33fe922b972c 100644 --- a/drivers/mtd/nand/rtc_from4.c +++ b/drivers/mtd/nand/rtc_from4.c @@ -351,7 +351,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha return 0; } - /* Read the syndrom pattern from the FPGA and correct the bitorder */ + /* Read the syndrome pattern from the FPGA and correct the bitorder */ rs_ecc = (volatile unsigned short *)(rtc_from4_fio_base + RTC_FROM4_RS_ECC); for (i = 0; i < 8; i++) { ecc[i] = bitrev8(*rs_ecc); diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 51800a7ef7f8..30c652c071e8 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1015,7 +1015,7 @@ static void onenand_release_device(struct mtd_info *mtd) } /** - * onenand_transfer_auto_oob - [Internal] oob auto-placement transfer + * onenand_transfer_auto_oob - [INTERN] oob auto-placement transfer * @param mtd MTD device structure * @param buf destination address * @param column oob offset to read from @@ -1821,7 +1821,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len, } /** - * onenand_fill_auto_oob - [Internal] oob auto-placement transfer + * onenand_fill_auto_oob - [INTERN] oob auto-placement transfer * @param mtd MTD device structure * @param oob_buf oob buffer * @param buf source address @@ -2055,7 +2055,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, /** - * onenand_write_oob_nolock - [Internal] OneNAND write out-of-band + * onenand_write_oob_nolock - [INTERN] OneNAND write out-of-band * @param mtd MTD device structure * @param to offset to write to * @param len number of bytes to write @@ -2281,7 +2281,7 @@ static int onenand_multiblock_erase_verify(struct mtd_info *mtd, } /** - * onenand_multiblock_erase - [Internal] erase block(s) using multiblock erase + * onenand_multiblock_erase - [INTERN] erase block(s) using multiblock erase * @param mtd MTD device structure * @param instr erase instruction * @param region erase region @@ -2397,7 +2397,7 @@ static int onenand_multiblock_erase(struct mtd_info *mtd, /** - * onenand_block_by_block_erase - [Internal] erase block(s) using regular erase + * onenand_block_by_block_erase - [INTERN] erase block(s) using regular erase * @param mtd MTD device structure * @param instr erase instruction * @param region erase region @@ -2922,7 +2922,7 @@ static int onenand_otp_command(struct mtd_info *mtd, int cmd, loff_t addr, } /** - * onenand_otp_write_oob_nolock - [Internal] OneNAND write out-of-band, specific to OTP + * onenand_otp_write_oob_nolock - [INTERN] OneNAND write out-of-band, specific to OTP * @param mtd MTD device structure * @param to offset to write to * @param len number of bytes to write diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index ed3d6cd2c6dc..a8befde81ce9 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -138,7 +138,7 @@ static int sm_get_lba(uint8_t *lba) if ((lba[0] & 0xF8) != 0x10) return -2; - /* check parity - endianess doesn't matter */ + /* check parity - endianness doesn't matter */ if (hweight16(*(uint16_t *)lba) & 1) return -2; -- cgit v1.2.3 From d6137badeff1ef64b4e0092ec249ebdeaeb3ff37 Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 27 Jun 2011 01:02:59 +0400 Subject: mtd: make ofpart buildable as a separate module As ofpart now uses a standard mtd partitions parser interface, make it buildable as a separate module. Also provide MODULE_DESCRIPTION and MODULE_AUTHOR for this module. Signed-off-by: Dmitry Eremin-Solenikov Acked-by: Randy Dunlap Signed-off-by: Artem Bityutskiy --- drivers/mtd/Kconfig | 3 ++- drivers/mtd/Makefile | 2 +- drivers/mtd/ofpart.c | 2 ++ 3 files changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 4be8373d43e5..cc02e2115efb 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -137,7 +137,8 @@ config MTD_AFS_PARTS 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example. config MTD_OF_PARTS - def_bool y + tristate "OpenFirmware partitioning information support" + default Y depends on OF help This provides a partition parsing function which derives diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile index 39664c4229ff..9aaac3ac89f3 100644 --- a/drivers/mtd/Makefile +++ b/drivers/mtd/Makefile @@ -5,8 +5,8 @@ # Core functionality. obj-$(CONFIG_MTD) += mtd.o mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o -mtd-$(CONFIG_MTD_OF_PARTS) += ofpart.o +obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o obj-$(CONFIG_MTD_AFS_PARTS) += afs.o diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index 41c451842fd2..aa33b8ad4f3c 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -174,3 +174,5 @@ out: module_init(ofpart_parser_init); MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Parser for MTD partitioning information in device tree"); +MODULE_AUTHOR("Vitaly Wool, David Gibson"); -- cgit v1.2.3 From 041e4575f03400e045f00a823fcbbbb337de8409 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Thu, 23 Jun 2011 16:45:24 -0700 Subject: mtd: nand: handle ECC errors in OOB While the standard NAND OOB functions do not do ECC on the spare area, it is possible for a driver to supply its own OOB ECC functions (e.g., HW ECC). nand_do_read_oob should act like nand_do_read_ops in checking the ECC stats and returning -EBADMSG or -EUCLEAN on uncorrectable errors or correctable bitflips, respectively. These error codes could be used in flash-based BBT code or in YAFFS, for example. Doing this, however, messes with the behavior of mtd_do_readoob. Now, mtd_do_readoob should check whether we had -EUCLEAN or -EBADMSG errors and discard those as "non-fatal" so that the ioctls can still succeed with (possibly uncorrected) data. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 15 +++++++++++++++ drivers/mtd/nand/nand_base.c | 9 ++++++++- 2 files changed, 23 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index c60067b1f07a..d5924635ead5 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -473,6 +473,21 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, ret = -EFAULT; kfree(ops.oobbuf); + + /* + * NAND returns -EBADMSG on ECC errors, but it returns the OOB + * data. For our userspace tools it is important to dump areas + * with ECC errors! + * For kernel internal usage it also might return -EUCLEAN + * to signal the caller that a bitflip has occured and has + * been corrected by the ECC algorithm. + * + * Note: most NAND ECC algorithms do not calculate ECC + * for the OOB area. + */ + if (ret == -EUCLEAN || ret == -EBADMSG) + return 0; + return ret; } diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 237d7daa189c..5418d27122c4 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1750,6 +1750,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, { int page, realpage, chipnr, sndcmd = 1; struct nand_chip *chip = mtd->priv; + struct mtd_ecc_stats stats; int blkcheck = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1; int readlen = ops->ooblen; int len; @@ -1758,6 +1759,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08Lx, len = %i\n", __func__, (unsigned long long)from, readlen); + stats = mtd->ecc_stats; + if (ops->mode == MTD_OOB_AUTO) len = chip->ecc.layout->oobavail; else @@ -1828,7 +1831,11 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, } ops->oobretlen = ops->ooblen; - return 0; + + if (mtd->ecc_stats.failed - stats.failed) + return -EBADMSG; + + return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0; } /** -- cgit v1.2.3 From 9786f6e68af00d0988ad7f51fe3fd118be1c30ad Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Mon, 27 Jun 2011 16:34:46 +0400 Subject: mtd: ofpart: add ofoldpart alias ofpart.ko also provides ofoldpart MTD parser. Add respective MODULE_ALIAS("ofoldpart"); declaration. Artem: improve the comment Signed-off-by: Dmitry Eremin-Solenikov Signed-off-by: Artem Bityutskiy --- drivers/mtd/ofpart.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c index aa33b8ad4f3c..64be8f0848b0 100644 --- a/drivers/mtd/ofpart.c +++ b/drivers/mtd/ofpart.c @@ -176,3 +176,9 @@ module_init(ofpart_parser_init); MODULE_LICENSE("GPL"); MODULE_DESCRIPTION("Parser for MTD partitioning information in device tree"); MODULE_AUTHOR("Vitaly Wool, David Gibson"); +/* + * When MTD core cannot find the requested parser, it tries to load the module + * with the same name. Since we provide the ofoldpart parser, we should have + * the corresponding alias. + */ +MODULE_ALIAS("ofoldpart"); -- cgit v1.2.3 From 903cd06cd6ece7f9050a3ad5b03e0b76be2882ff Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 28 Jun 2011 16:28:58 -0700 Subject: mtd: nand: ignore ECC errors for simple BBM scans Now that nand_do_readoob() may return -EUCLEAN or -EBADMSG on ECC errors, we need to handle the return value specially in some cases. When scanning for simple bad block markers, reacting to an ECC error is not very useful, as we assume that the relevant markers are still non-0xFF for true bad blocks. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index f30807c3a48d..a4fcbf1cbc76 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -312,14 +312,20 @@ static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs, ops.oobbuf = buf + len; ops.datbuf = buf; ops.len = len; - return mtd->read_oob(mtd, offs, &ops); + res = mtd->read_oob(mtd, offs, &ops); + + /* Ignore ECC errors when checking for BBM */ + if (res != -EUCLEAN && res != -EBADMSG) + return res; + return 0; } else { ops.oobbuf = buf + mtd->writesize; ops.datbuf = buf; ops.len = mtd->writesize; res = mtd->read_oob(mtd, offs, &ops); - if (res) + /* Ignore ECC errors when checking for BBM */ + if (res && res != -EUCLEAN && res != -EBADMSG) return res; } @@ -435,7 +441,8 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, * byte reads for 16 bit buswidth. */ ret = mtd->read_oob(mtd, offs, &ops); - if (ret) + /* Ignore ECC errors when checking for BBM */ + if (ret && ret != -EUCLEAN && ret != -EBADMSG) return ret; if (check_short_pattern(buf, bd)) -- cgit v1.2.3 From 003bc47922047e21ebfb19cb99317273b313f79d Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 28 Jun 2011 16:28:59 -0700 Subject: mtd: tests: ignore corrected bitflips in OOB on mtd_readtest read_oob may now return ECC error codes. If the code is -EUCLEAN, then we can safely ignore the error as a corrected bitflip. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_readtest.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index afe71aa15c4b..836792d1d60e 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -75,7 +75,8 @@ static int read_eraseblock_by_page(int ebnum) ops.datbuf = NULL; ops.oobbuf = oobbuf; ret = mtd->read_oob(mtd, addr, &ops); - if (ret || ops.oobretlen != mtd->oobsize) { + if ((ret && ret != -EUCLEAN) || + ops.oobretlen != mtd->oobsize) { printk(PRINT_PREF "error: read oob failed at " "%#llx\n", (long long)addr); if (!err) -- cgit v1.2.3 From c478d7e449508d924628b012e62dee6dddb6b9e9 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 28 Jun 2011 16:29:00 -0700 Subject: mtd: edit NAND-related comment This comment was unclear regarding which NAND functions do and do not support ECC on the spare area. This update should reflect the current status of the NAND system but can be updated if changes are made in the standard functions. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index d5924635ead5..e197192331f9 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -482,8 +482,9 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, * to signal the caller that a bitflip has occured and has * been corrected by the ECC algorithm. * - * Note: most NAND ECC algorithms do not calculate ECC - * for the OOB area. + * Note: currently the standard NAND function, nand_read_oob_std, + * does not calculate ECC for the OOB area, so do not rely on + * this behavior unless you have replaced it with your own. */ if (ret == -EUCLEAN || ret == -EBADMSG) return 0; -- cgit v1.2.3 From 08c248fbe2bfc0326255c5b0cb3952166234d59b Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Sun, 26 Jun 2011 18:26:55 +0200 Subject: mtd: nand_flash_detect_onfi propagate busw info there is a bug in nand_flash_detect_onfi, busw need to be passed by pointer to return it. Signed-off-by: Matthieu CASTET Acked-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 5418d27122c4..250e86f5592e 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2824,7 +2824,7 @@ static u16 onfi_crc16(u16 crc, u8 const *p, size_t len) * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise. */ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, - int busw) + int *busw) { struct nand_onfi_params *p = &chip->onfi_params; int i; @@ -2879,9 +2879,9 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize; mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page); chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) * mtd->erasesize; - busw = 0; + *busw = 0; if (le16_to_cpu(p->features) & 1) - busw = NAND_BUSWIDTH_16; + *busw = NAND_BUSWIDTH_16; chip->options &= ~NAND_CHIPOPTIONS_MSK; chip->options |= (NAND_NO_READRDY | @@ -2948,7 +2948,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->onfi_version = 0; if (!type->name || !type->pagesize) { /* Check is chip is ONFI compliant */ - ret = nand_flash_detect_onfi(mtd, chip, busw); + ret = nand_flash_detect_onfi(mtd, chip, &busw); if (ret) goto ident_done; } -- cgit v1.2.3 From 201ab536ac205a2787f8eac2eedc697616f99e04 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 29 Jun 2011 18:41:16 +0200 Subject: mtd: atmel_nand: fix wrong use of 0 as NULL Fixing this error: atmel_nand.c:718:20: warning: Using plain integer as NULL pointer Signed-off-by: Nicolas Ferre Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index b1381437a957..ee6e26e78a1a 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -588,7 +588,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev) dma_cap_zero(mask); dma_cap_set(DMA_MEMCPY, mask); - host->dma_chan = dma_request_channel(mask, 0, NULL); + host->dma_chan = dma_request_channel(mask, NULL, NULL); if (!host->dma_chan) { dev_err(host->dev, "Failed to request DMA channel\n"); use_dma = 0; -- cgit v1.2.3 From a751d3155dee38cb2a8e46d8cf3fa6998b2f3239 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 30 Jun 2011 19:53:09 +0800 Subject: mtd: fsl_upm: fix a memory leak in fun_chip_init error path Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_upm.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index da92fed9f27b..b4f3cc9f32fb 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -196,6 +196,8 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun, ret = mtd_device_parse_register(&fun->mtd, NULL, &ppdata, NULL, 0); err: of_node_put(flash_np); + if (ret) + kfree(fun->mtd.name); return ret; } -- cgit v1.2.3 From 57b078a09bf0ab3f0babcfe6ecb2ac226d9178be Mon Sep 17 00:00:00 2001 From: Liu Shuo Date: Tue, 28 Jun 2011 09:50:51 +0800 Subject: mtd: nand: don't free the global data too early The global data fsl_lbc_ctrl_dev->nand don't have to be freed in fsl_elbc_chip_remove(). The right place to do that is in fsl_elbc_nand_remove() if elbc_fcm_ctrl->counter is zero. Signed-off-by: Liu Shuo Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_elbc_nand.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 915b4a4c06c2..3c2f03c55cac 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -829,7 +829,6 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) elbc_fcm_ctrl->chips[priv->bank] = NULL; kfree(priv); - kfree(elbc_fcm_ctrl); return 0; } -- cgit v1.2.3 From fb5427508abbd635e877fabdf55795488119c2d6 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Mon, 4 Jul 2011 16:17:53 +0200 Subject: mtd: atmel_nand: optimize read/write buffer functions For PIO NAND access functions, we use the features of the SMC: - no need to take into account the NAND bus width: SMC will deal with this - use of an IO memcpy on the NAND chip-select space is able to generate proper SMC behavior. Signed-off-by: Nicolas Ferre Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/atmel_nand.c | 45 ++++--------------------------------------- 1 file changed, 4 insertions(+), 41 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index ee6e26e78a1a..23e5d77c39fc 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -161,37 +161,6 @@ static int atmel_nand_device_ready(struct mtd_info *mtd) !!host->board->rdy_pin_active_low; } -/* - * Minimal-overhead PIO for data access. - */ -static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len) -{ - struct nand_chip *nand_chip = mtd->priv; - - __raw_readsb(nand_chip->IO_ADDR_R, buf, len); -} - -static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len) -{ - struct nand_chip *nand_chip = mtd->priv; - - __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2); -} - -static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len) -{ - struct nand_chip *nand_chip = mtd->priv; - - __raw_writesb(nand_chip->IO_ADDR_W, buf, len); -} - -static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len) -{ - struct nand_chip *nand_chip = mtd->priv; - - __raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2); -} - static void dma_complete_func(void *completion) { complete(completion); @@ -266,33 +235,27 @@ err_buf: static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len) { struct nand_chip *chip = mtd->priv; - struct atmel_nand_host *host = chip->priv; if (use_dma && len > mtd->oobsize) /* only use DMA for bigger than oob size: better performances */ if (atmel_nand_dma_op(mtd, buf, len, 1) == 0) return; - if (host->board->bus_width_16) - atmel_read_buf16(mtd, buf, len); - else - atmel_read_buf8(mtd, buf, len); + /* if no DMA operation possible, use PIO */ + memcpy_fromio(buf, chip->IO_ADDR_R, len); } static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len) { struct nand_chip *chip = mtd->priv; - struct atmel_nand_host *host = chip->priv; if (use_dma && len > mtd->oobsize) /* only use DMA for bigger than oob size: better performances */ if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0) return; - if (host->board->bus_width_16) - atmel_write_buf16(mtd, buf, len); - else - atmel_write_buf8(mtd, buf, len); + /* if no DMA operation possible, use PIO */ + memcpy_toio(chip->IO_ADDR_W, buf, len); } /* -- cgit v1.2.3 From 52a474de0a830bdf4305ef19c3321064ce5da438 Mon Sep 17 00:00:00 2001 From: Mike Hench Date: Tue, 5 Jul 2011 19:14:48 -0400 Subject: mtd: eLBC NAND: remove elbc_fcm_ctrl->oob_poi The eLBC NAND driver currently follows up each program/write operation with a read-back of the page, in order to [ostensibly] fill in ECC data for the caller. However, the page address used for this read is always -1, so the read will never work correctly. Remove this useless (and potentially problematic) block of code. Signed-off-by: Matthew L. Creech Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_elbc_nand.c | 33 ++------------------------------- 1 file changed, 2 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 3c2f03c55cac..acc27ee04749 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -75,7 +75,6 @@ struct fsl_elbc_fcm_ctrl { unsigned int use_mdr; /* Non zero if the MDR is to be set */ unsigned int oob; /* Non zero if operating on OOB data */ unsigned int counter; /* counter for the initializations */ - char *oob_poi; /* Place to write ECC after read back */ }; /* These map to the positions used by the FCM hardware ECC generator */ @@ -435,7 +434,6 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command, /* PAGEPROG reuses all of the setup from SEQIN and adds the length */ case NAND_CMD_PAGEPROG: { - int full_page; dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD_PAGEPROG " "writing %d bytes.\n", elbc_fcm_ctrl->index); @@ -445,34 +443,12 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command, * write so the HW generates the ECC. */ if (elbc_fcm_ctrl->oob || elbc_fcm_ctrl->column != 0 || - elbc_fcm_ctrl->index != mtd->writesize + mtd->oobsize) { + elbc_fcm_ctrl->index != mtd->writesize + mtd->oobsize) out_be32(&lbc->fbcr, elbc_fcm_ctrl->index); - full_page = 0; - } else { + else out_be32(&lbc->fbcr, 0); - full_page = 1; - } fsl_elbc_run_command(mtd); - - /* Read back the page in order to fill in the ECC for the - * caller. Is this really needed? - */ - if (full_page && elbc_fcm_ctrl->oob_poi) { - out_be32(&lbc->fbcr, 3); - set_addr(mtd, 6, page_addr, 1); - - elbc_fcm_ctrl->read_bytes = mtd->writesize + 9; - - fsl_elbc_do_read(chip, 1); - fsl_elbc_run_command(mtd); - - memcpy_fromio(elbc_fcm_ctrl->oob_poi + 6, - &elbc_fcm_ctrl->addr[elbc_fcm_ctrl->index], 3); - elbc_fcm_ctrl->index += 3; - } - - elbc_fcm_ctrl->oob_poi = NULL; return; } @@ -752,13 +728,8 @@ static void fsl_elbc_write_page(struct mtd_info *mtd, struct nand_chip *chip, const uint8_t *buf) { - struct fsl_elbc_mtd *priv = chip->priv; - struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; - fsl_elbc_write_buf(mtd, buf, mtd->writesize); fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize); - - elbc_fcm_ctrl->oob_poi = chip->oob_poi; } static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) -- cgit v1.2.3 From 051fc41c2e578e10950bf34dc84878e489e0679f Mon Sep 17 00:00:00 2001 From: Lei Wen Date: Thu, 14 Jul 2011 20:44:30 -0700 Subject: mtd: pxa3xx_nand: enhance suspend and resume routine This patch add protection on the suspend&resume path to prevent some unexpected behavior, like interrupt occur at the very second of resume back and it don't follow normal command path, which lead to bug. Signed-off-by: Lei Wen --- drivers/mtd/nand/pxa3xx_nand.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index b7db1b2021f2..61e1ff5a9ada 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1158,23 +1158,36 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); + struct mtd_info *mtd = info->mtd; if (info->state) { dev_err(&pdev->dev, "driver busy, state = %d\n", info->state); return -EAGAIN; } + mtd->suspend(mtd); return 0; } static int pxa3xx_nand_resume(struct platform_device *pdev) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); + struct mtd_info *mtd = info->mtd; + + /* We don't want to handle interrupt without calling mtd routine */ + disable_int(info, NDCR_INT_MASK); nand_writel(info, NDTR0CS0, info->ndtr0cs0); nand_writel(info, NDTR1CS0, info->ndtr1cs0); - clk_enable(info->clk); + /* + * As the spec says, the NDSR would be updated to 0x1800 when + * doing the nand_clk disable/enable. + * To prevent it damaging state machine of the driver, clear + * all status before resume + */ + nand_writel(info, NDSR, NDSR_MASK); + mtd->resume(mtd); return 0; } #else -- cgit v1.2.3 From da675b4ef20bb460f185e0aca4afeb8c3e7e4477 Mon Sep 17 00:00:00 2001 From: Lei Wen Date: Thu, 14 Jul 2011 20:44:31 -0700 Subject: mtd: pxa3xx_nand: convert all printk into dev_* Also add missed warning message. Signed-off-by: Lei Wen Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/pxa3xx_nand.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 61e1ff5a9ada..e55d7f8df978 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -359,7 +359,7 @@ static void handle_data_pio(struct pxa3xx_nand_info *info) DIV_ROUND_UP(info->oob_size, 4)); break; default: - printk(KERN_ERR "%s: invalid state %d\n", __func__, + dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__, info->state); BUG(); } @@ -385,7 +385,7 @@ static void start_data_dma(struct pxa3xx_nand_info *info) desc->dcmd |= DCMD_INCTRGADDR | DCMD_FLOWSRC; break; default: - printk(KERN_ERR "%s: invalid state %d\n", __func__, + dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__, info->state); BUG(); } @@ -616,8 +616,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, default: exec_cmd = 0; - printk(KERN_ERR "pxa3xx-nand: non-supported" - " command %x\n", command); + dev_err(&info->pdev->dev, "non-supported command %x\n", + command); break; } @@ -646,7 +646,7 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, ret = wait_for_completion_timeout(&info->cmd_complete, CHIP_DELAY_TIMEOUT); if (!ret) { - printk(KERN_ERR "Wait time out!!!\n"); + dev_err(&info->pdev->dev, "Wait time out!!!\n"); /* Stop State Machine for next command cycle */ pxa3xx_nand_stop(info); } @@ -774,11 +774,15 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; uint32_t ndcr = 0x0; /* enable all interrupts */ - if (f->page_size != 2048 && f->page_size != 512) + if (f->page_size != 2048 && f->page_size != 512) { + dev_err(&pdev->dev, "Current only support 2048 and 512 size\n"); return -EINVAL; + } - if (f->flash_width != 16 && f->flash_width != 8) + if (f->flash_width != 16 && f->flash_width != 8) { + dev_err(&pdev->dev, "Only support 8bit and 16 bit!\n"); return -EINVAL; + } /* calculate flash information */ info->cmdset = &default_cmdset; @@ -898,7 +902,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) if (!ret) { kfree(mtd); info->mtd = NULL; - printk(KERN_INFO "There is no nand chip on cs 0!\n"); + dev_info(&info->pdev->dev, "There is no nand chip on cs 0!\n"); return -EINVAL; } @@ -906,11 +910,12 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) chip->cmdfunc(mtd, NAND_CMD_READID, 0, 0); id = *((uint16_t *)(info->data_buff)); if (id != 0) - printk(KERN_INFO "Detect a flash id %x\n", id); + dev_info(&info->pdev->dev, "Detect a flash id %x\n", id); else { kfree(mtd); info->mtd = NULL; - printk(KERN_WARNING "Read out ID 0, potential timing set wrong!!\n"); + dev_warn(&info->pdev->dev, + "Read out ID 0, potential timing set wrong!!\n"); return -EINVAL; } @@ -930,7 +935,7 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1)) { kfree(mtd); info->mtd = NULL; - printk(KERN_ERR "ERROR!! flash not defined!!!\n"); + dev_err(&info->pdev->dev, "ERROR!! flash not defined!!!\n"); return -EINVAL; } -- cgit v1.2.3 From d456882b41b84eba5e729cf78757b8ed95572362 Mon Sep 17 00:00:00 2001 From: Lei Wen Date: Thu, 14 Jul 2011 20:44:32 -0700 Subject: mtd: pxa3xx_nand: sperate each chip individual info For support two chip select, we seperate chip specific info in this patch. Signed-off-by: Lei Wen --- drivers/mtd/nand/pxa3xx_nand.c | 292 ++++++++++++++++++++++------------------- 1 file changed, 160 insertions(+), 132 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index e55d7f8df978..97b689499119 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -110,6 +110,7 @@ enum { enum { STATE_IDLE = 0, + STATE_PREPARED, STATE_CMD_HANDLE, STATE_DMA_READING, STATE_DMA_WRITING, @@ -120,21 +121,39 @@ enum { STATE_READY, }; -struct pxa3xx_nand_info { - struct nand_chip nand_chip; +struct pxa3xx_nand_host { + struct nand_chip chip; + struct pxa3xx_nand_cmdset *cmdset; + struct mtd_info *mtd; + void *info_data; + + /* page size of attached chip */ + unsigned int page_size; + int use_ecc; + /* calculated from pxa3xx_nand_flash data */ + unsigned int col_addr_cycles; + unsigned int row_addr_cycles; + size_t read_id_bytes; + + /* cached register value */ + uint32_t reg_ndcr; + uint32_t ndtr0cs0; + uint32_t ndtr1cs0; +}; + +struct pxa3xx_nand_info { struct nand_hw_control controller; struct platform_device *pdev; - struct pxa3xx_nand_cmdset *cmdset; struct clk *clk; void __iomem *mmio_base; unsigned long mmio_phys; + struct completion cmd_complete; unsigned int buf_start; unsigned int buf_count; - struct mtd_info *mtd; /* DMA information */ int drcmr_dat; int drcmr_cmd; @@ -142,18 +161,11 @@ struct pxa3xx_nand_info { unsigned char *data_buff; unsigned char *oob_buff; dma_addr_t data_buff_phys; - size_t data_buff_size; int data_dma_ch; struct pxa_dma_desc *data_desc; dma_addr_t data_desc_addr; - uint32_t reg_ndcr; - - /* saved column/page_addr during CMD_SEQIN */ - int seqin_column; - int seqin_page_addr; - - /* relate to the command */ + struct pxa3xx_nand_host *host; unsigned int state; int use_ecc; /* use HW ECC ? */ @@ -162,24 +174,13 @@ struct pxa3xx_nand_info { unsigned int page_size; /* page size of attached chip */ unsigned int data_size; /* data size in FIFO */ + unsigned int oob_size; int retcode; - struct completion cmd_complete; /* generated NDCBx register values */ uint32_t ndcb0; uint32_t ndcb1; uint32_t ndcb2; - - /* timing calcuted from setting */ - uint32_t ndtr0cs0; - uint32_t ndtr1cs0; - - /* calculated from pxa3xx_nand_flash data */ - size_t oob_size; - size_t read_id_bytes; - - unsigned int col_addr_cycles; - unsigned int row_addr_cycles; }; static int use_dma = 1; @@ -241,9 +242,10 @@ const char *mtd_names[] = {"pxa3xx_nand-0", NULL}; /* convert nano-seconds to nand flash controller clock cycles */ #define ns2cycle(ns, clk) (int)((ns) * (clk / 1000000) / 1000) -static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info, +static void pxa3xx_nand_set_timing(struct pxa3xx_nand_host *host, const struct pxa3xx_nand_timing *t) { + struct pxa3xx_nand_info *info = host->info_data; unsigned long nand_clk = clk_get_rate(info->clk); uint32_t ndtr0, ndtr1; @@ -258,23 +260,24 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info, NDTR1_tWHR(ns2cycle(t->tWHR, nand_clk)) | NDTR1_tAR(ns2cycle(t->tAR, nand_clk)); - info->ndtr0cs0 = ndtr0; - info->ndtr1cs0 = ndtr1; + host->ndtr0cs0 = ndtr0; + host->ndtr1cs0 = ndtr1; nand_writel(info, NDTR0CS0, ndtr0); nand_writel(info, NDTR1CS0, ndtr1); } static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info) { - int oob_enable = info->reg_ndcr & NDCR_SPARE_EN; + struct pxa3xx_nand_host *host = info->host; + int oob_enable = host->reg_ndcr & NDCR_SPARE_EN; - info->data_size = info->page_size; + info->data_size = host->page_size; if (!oob_enable) { info->oob_size = 0; return; } - switch (info->page_size) { + switch (host->page_size) { case 2048: info->oob_size = (info->use_ecc) ? 40 : 64; break; @@ -292,9 +295,10 @@ static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info) */ static void pxa3xx_nand_start(struct pxa3xx_nand_info *info) { + struct pxa3xx_nand_host *host = info->host; uint32_t ndcr; - ndcr = info->reg_ndcr; + ndcr = host->reg_ndcr; ndcr |= info->use_ecc ? NDCR_ECC_EN : 0; ndcr |= info->use_dma ? NDCR_DMA_EN : 0; ndcr |= NDCR_ND_RUN; @@ -463,12 +467,6 @@ NORMAL_IRQ_EXIT: return IRQ_HANDLED; } -static int pxa3xx_nand_dev_ready(struct mtd_info *mtd) -{ - struct pxa3xx_nand_info *info = mtd->priv; - return (nand_readl(info, NDSR) & NDSR_RDY) ? 1 : 0; -} - static inline int is_buf_blank(uint8_t *buf, size_t len) { for (; len > 0; len--) @@ -481,10 +479,10 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, uint16_t column, int page_addr) { uint16_t cmd; - int addr_cycle, exec_cmd, ndcb0; - struct mtd_info *mtd = info->mtd; + int addr_cycle, exec_cmd; + struct pxa3xx_nand_host *host = info->host; + struct mtd_info *mtd = host->mtd; - ndcb0 = 0; addr_cycle = 0; exec_cmd = 1; @@ -494,6 +492,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, info->oob_size = 0; info->use_ecc = 0; info->is_ready = 0; + info->ndcb0 = 0; info->retcode = ERR_NONE; switch (command) { @@ -512,20 +511,19 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, break; } - info->ndcb0 = ndcb0; - addr_cycle = NDCB0_ADDR_CYC(info->row_addr_cycles - + info->col_addr_cycles); + addr_cycle = NDCB0_ADDR_CYC(host->row_addr_cycles + + host->col_addr_cycles); switch (command) { case NAND_CMD_READOOB: case NAND_CMD_READ0: - cmd = info->cmdset->read1; + cmd = host->cmdset->read1; if (command == NAND_CMD_READOOB) info->buf_start = mtd->writesize + column; else info->buf_start = column; - if (unlikely(info->page_size < PAGE_CHUNK_SIZE)) + if (unlikely(host->page_size < PAGE_CHUNK_SIZE)) info->ndcb0 |= NDCB0_CMD_TYPE(0) | addr_cycle | (cmd & NDCB0_CMD1_MASK); @@ -537,7 +535,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, case NAND_CMD_SEQIN: /* small page addr setting */ - if (unlikely(info->page_size < PAGE_CHUNK_SIZE)) { + if (unlikely(host->page_size < PAGE_CHUNK_SIZE)) { info->ndcb1 = ((page_addr & 0xFFFFFF) << 8) | (column & 0xFF); @@ -564,7 +562,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, break; } - cmd = info->cmdset->program; + cmd = host->cmdset->program; info->ndcb0 |= NDCB0_CMD_TYPE(0x1) | NDCB0_AUTO_RS | NDCB0_ST_ROW_EN @@ -574,8 +572,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, break; case NAND_CMD_READID: - cmd = info->cmdset->read_id; - info->buf_count = info->read_id_bytes; + cmd = host->cmdset->read_id; + info->buf_count = host->read_id_bytes; info->ndcb0 |= NDCB0_CMD_TYPE(3) | NDCB0_ADDR_CYC(1) | cmd; @@ -583,7 +581,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, info->data_size = 8; break; case NAND_CMD_STATUS: - cmd = info->cmdset->read_status; + cmd = host->cmdset->read_status; info->buf_count = 1; info->ndcb0 |= NDCB0_CMD_TYPE(4) | NDCB0_ADDR_CYC(1) @@ -593,7 +591,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, break; case NAND_CMD_ERASE1: - cmd = info->cmdset->erase; + cmd = host->cmdset->erase; info->ndcb0 |= NDCB0_CMD_TYPE(2) | NDCB0_AUTO_RS | NDCB0_ADDR_CYC(3) @@ -604,7 +602,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, break; case NAND_CMD_RESET: - cmd = info->cmdset->reset; + cmd = host->cmdset->reset; info->ndcb0 |= NDCB0_CMD_TYPE(5) | cmd; @@ -627,7 +625,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, int column, int page_addr) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; int ret, exec_cmd; /* @@ -635,9 +634,10 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, * "byte" address into a "word" address appropriate * for indexing a word-oriented device */ - if (info->reg_ndcr & NDCR_DWIDTH_M) + if (host->reg_ndcr & NDCR_DWIDTH_M) column /= 2; + info->state = STATE_PREPARED; exec_cmd = prepare_command_pool(info, command, column, page_addr); if (exec_cmd) { init_completion(&info->cmd_complete); @@ -650,8 +650,8 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, /* Stop State Machine for next command cycle */ pxa3xx_nand_stop(info); } - info->state = STATE_IDLE; } + info->state = STATE_IDLE; } static void pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd, @@ -664,7 +664,8 @@ static void pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd, static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip, uint8_t *buf, int page) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; chip->read_buf(mtd, buf, mtd->writesize); chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); @@ -695,7 +696,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd, static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; char retval = 0xFF; if (info->buf_start < info->buf_count) @@ -707,7 +709,8 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd) static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; u16 retval = 0xFFFF; if (!(info->buf_start & 0x01) && info->buf_start < info->buf_count) { @@ -719,7 +722,8 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd) static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); memcpy(buf, info->data_buff + info->buf_start, real_len); @@ -729,7 +733,8 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) static void pxa3xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; int real_len = min_t(size_t, len, info->buf_count - info->buf_start); memcpy(info->data_buff + info->buf_start, buf, real_len); @@ -749,7 +754,8 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip) static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; /* pxa3xx_nand_send_command has waited for command complete */ if (this->state == FL_WRITING || this->state == FL_ERASING) { @@ -772,6 +778,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, { struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; + struct pxa3xx_nand_host *host = info->host; uint32_t ndcr = 0x0; /* enable all interrupts */ if (f->page_size != 2048 && f->page_size != 512) { @@ -785,45 +792,52 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, } /* calculate flash information */ - info->cmdset = &default_cmdset; - info->page_size = f->page_size; - info->read_id_bytes = (f->page_size == 2048) ? 4 : 2; + host->cmdset = &default_cmdset; + host->page_size = f->page_size; + host->read_id_bytes = (f->page_size == 2048) ? 4 : 2; /* calculate addressing information */ - info->col_addr_cycles = (f->page_size == 2048) ? 2 : 1; + host->col_addr_cycles = (f->page_size == 2048) ? 2 : 1; if (f->num_blocks * f->page_per_block > 65536) - info->row_addr_cycles = 3; + host->row_addr_cycles = 3; else - info->row_addr_cycles = 2; + host->row_addr_cycles = 2; ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0; - ndcr |= (info->col_addr_cycles == 2) ? NDCR_RA_START : 0; + ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0; ndcr |= (f->page_per_block == 64) ? NDCR_PG_PER_BLK : 0; ndcr |= (f->page_size == 2048) ? NDCR_PAGE_SZ : 0; ndcr |= (f->flash_width == 16) ? NDCR_DWIDTH_M : 0; ndcr |= (f->dfc_width == 16) ? NDCR_DWIDTH_C : 0; - ndcr |= NDCR_RD_ID_CNT(info->read_id_bytes); + ndcr |= NDCR_RD_ID_CNT(host->read_id_bytes); ndcr |= NDCR_SPARE_EN; /* enable spare by default */ - info->reg_ndcr = ndcr; + host->reg_ndcr = ndcr; - pxa3xx_nand_set_timing(info, f->timing); + pxa3xx_nand_set_timing(host, f->timing); return 0; } static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) { + struct pxa3xx_nand_host *host = info->host; uint32_t ndcr = nand_readl(info, NDCR); - info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512; - /* set info fields needed to read id */ - info->read_id_bytes = (info->page_size == 2048) ? 4 : 2; - info->reg_ndcr = ndcr & ~NDCR_INT_MASK; - info->cmdset = &default_cmdset; - info->ndtr0cs0 = nand_readl(info, NDTR0CS0); - info->ndtr1cs0 = nand_readl(info, NDTR1CS0); + if (ndcr & NDCR_PAGE_SZ) { + host->page_size = 2048; + host->read_id_bytes = 4; + } else { + host->page_size = 512; + host->read_id_bytes = 2; + } + + host->reg_ndcr = ndcr & ~NDCR_INT_MASK; + host->cmdset = &default_cmdset; + + host->ndtr0cs0 = nand_readl(info, NDTR0CS0); + host->ndtr1cs0 = nand_readl(info, NDTR1CS0); return 0; } @@ -853,7 +867,6 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) return -ENOMEM; } - info->data_buff_size = MAX_BUFF_SIZE; info->data_desc = (void *)info->data_buff + data_desc_offset; info->data_desc_addr = info->data_buff_phys + data_desc_offset; @@ -861,7 +874,7 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) pxa3xx_nand_data_dma_irq, info); if (info->data_dma_ch < 0) { dev_err(&pdev->dev, "failed to request data dma\n"); - dma_free_coherent(&pdev->dev, info->data_buff_size, + dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE, info->data_buff, info->data_buff_phys); return info->data_dma_ch; } @@ -871,21 +884,25 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info) { - struct mtd_info *mtd = info->mtd; - struct nand_chip *chip = mtd->priv; + struct mtd_info *mtd = info->host->mtd; + int ret; /* use the common timing to make a try */ - pxa3xx_nand_config_flash(info, &builtin_flash_types[0]); - chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0); + ret = pxa3xx_nand_config_flash(info, &builtin_flash_types[0]); + if (ret) + return ret; + + pxa3xx_nand_cmdfunc(mtd, NAND_CMD_RESET, 0, 0); if (info->is_ready) - return 1; - else return 0; + + return -ENODEV; } static int pxa3xx_nand_scan(struct mtd_info *mtd) { - struct pxa3xx_nand_info *info = mtd->priv; + struct pxa3xx_nand_host *host = mtd->priv; + struct pxa3xx_nand_info *info = host->info_data; struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; struct nand_flash_dev pxa3xx_flash_ids[2], *def = NULL; @@ -899,12 +916,10 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) goto KEEP_CONFIG; ret = pxa3xx_nand_sensing(info); - if (!ret) { - kfree(mtd); - info->mtd = NULL; + if (ret) { dev_info(&info->pdev->dev, "There is no nand chip on cs 0!\n"); - return -EINVAL; + return ret; } chip->cmdfunc(mtd, NAND_CMD_READID, 0, 0); @@ -912,8 +927,6 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) if (id != 0) dev_info(&info->pdev->dev, "Detect a flash id %x\n", id); else { - kfree(mtd); - info->mtd = NULL; dev_warn(&info->pdev->dev, "Read out ID 0, potential timing set wrong!!\n"); @@ -933,14 +946,17 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) } if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1)) { - kfree(mtd); - info->mtd = NULL; dev_err(&info->pdev->dev, "ERROR!! flash not defined!!!\n"); return -EINVAL; } - pxa3xx_nand_config_flash(info, f); + ret = pxa3xx_nand_config_flash(info, f); + if (ret) { + dev_err(&info->pdev->dev, "ERROR! Configure failed\n"); + return ret; + } + pxa3xx_flash_ids[0].name = f->name; pxa3xx_flash_ids[0].id = (f->chip_id >> 8) & 0xffff; pxa3xx_flash_ids[0].pagesize = f->page_size; @@ -952,47 +968,56 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) pxa3xx_flash_ids[1].name = NULL; def = pxa3xx_flash_ids; KEEP_CONFIG: + chip->ecc.mode = NAND_ECC_HW; + chip->ecc.size = host->page_size; + + chip->options = NAND_NO_AUTOINCR; + chip->options |= NAND_NO_READRDY; + if (host->reg_ndcr & NDCR_DWIDTH_M) + chip->options |= NAND_BUSWIDTH_16; + if (nand_scan_ident(mtd, 1, def)) return -ENODEV; /* calculate addressing information */ - info->col_addr_cycles = (mtd->writesize >= 2048) ? 2 : 1; + if (mtd->writesize >= 2048) + host->col_addr_cycles = 2; + else + host->col_addr_cycles = 1; + info->oob_buff = info->data_buff + mtd->writesize; if ((mtd->size >> chip->page_shift) > 65536) - info->row_addr_cycles = 3; + host->row_addr_cycles = 3; else - info->row_addr_cycles = 2; - mtd->name = mtd_names[0]; - chip->ecc.mode = NAND_ECC_HW; - chip->ecc.size = info->page_size; - - chip->options = (info->reg_ndcr & NDCR_DWIDTH_M) ? NAND_BUSWIDTH_16 : 0; - chip->options |= NAND_NO_AUTOINCR; - chip->options |= NAND_NO_READRDY; + host->row_addr_cycles = 2; + mtd->name = mtd_names[0]; return nand_scan_tail(mtd); } -static -struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) +static int alloc_nand_resource(struct platform_device *pdev) { struct pxa3xx_nand_info *info; + struct pxa3xx_nand_host *host; struct nand_chip *chip; struct mtd_info *mtd; struct resource *r; int ret, irq; - mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct pxa3xx_nand_info), + info = kzalloc(sizeof(*info) + sizeof(*mtd) + sizeof(*host), GFP_KERNEL); - if (!mtd) { + if (!info) { dev_err(&pdev->dev, "failed to allocate memory\n"); - return NULL; + return -ENOMEM; } - info = (struct pxa3xx_nand_info *)(&mtd[1]); + mtd = (struct mtd_info *)(&info[1]); chip = (struct nand_chip *)(&mtd[1]); + host = (struct pxa3xx_nand_host *)chip; info->pdev = pdev; - info->mtd = mtd; - mtd->priv = info; + info->host = host; + host->mtd = mtd; + host->info_data = info; + mtd->priv = host; mtd->owner = THIS_MODULE; chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; @@ -1000,7 +1025,6 @@ struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) chip->controller = &info->controller; chip->waitfunc = pxa3xx_nand_waitfunc; chip->select_chip = pxa3xx_nand_select_chip; - chip->dev_ready = pxa3xx_nand_dev_ready; chip->cmdfunc = pxa3xx_nand_cmdfunc; chip->read_word = pxa3xx_nand_read_word; chip->read_byte = pxa3xx_nand_read_byte; @@ -1079,13 +1103,13 @@ struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev) platform_set_drvdata(pdev, info); - return info; + return 0; fail_free_buf: free_irq(irq, info); if (use_dma) { pxa_free_dma(info->data_dma_ch); - dma_free_coherent(&pdev->dev, info->data_buff_size, + dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE, info->data_buff, info->data_buff_phys); } else kfree(info->data_buff); @@ -1097,17 +1121,19 @@ fail_put_clk: clk_disable(info->clk); clk_put(info->clk); fail_free_mtd: - kfree(mtd); - return NULL; + kfree(info); + return ret; } static int pxa3xx_nand_remove(struct platform_device *pdev) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); - struct mtd_info *mtd = info->mtd; struct resource *r; int irq; + if (!info) + return 0; + platform_set_drvdata(pdev, NULL); irq = platform_get_irq(pdev, 0); @@ -1115,7 +1141,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) free_irq(irq, info); if (use_dma) { pxa_free_dma(info->data_dma_ch); - dma_free_writecombine(&pdev->dev, info->data_buff_size, + dma_free_writecombine(&pdev->dev, MAX_BUFF_SIZE, info->data_buff, info->data_buff_phys); } else kfree(info->data_buff); @@ -1127,10 +1153,8 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) clk_disable(info->clk); clk_put(info->clk); - if (mtd) { - nand_release(mtd); - kfree(mtd); - } + nand_release(info->host->mtd); + kfree(info); return 0; } @@ -1138,6 +1162,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) { struct pxa3xx_nand_platform_data *pdata; struct pxa3xx_nand_info *info; + int ret; pdata = pdev->dev.platform_data; if (!pdata) { @@ -1145,17 +1170,20 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) return -ENODEV; } - info = alloc_nand_resource(pdev); - if (info == NULL) - return -ENOMEM; + ret = alloc_nand_resource(pdev); + if (ret) { + dev_err(&pdev->dev, "alloc nand resource failed\n"); + return ret; + } - if (pxa3xx_nand_scan(info->mtd)) { + info = platform_get_drvdata(pdev); + if (pxa3xx_nand_scan(info->host->mtd)) { dev_err(&pdev->dev, "failed to scan nand\n"); pxa3xx_nand_remove(pdev); return -ENODEV; } - return mtd_device_parse_register(info->mtd, NULL, 0, + return mtd_device_parse_register(info->host->mtd, NULL, 0, pdata->parts, pdata->nr_parts); } @@ -1182,8 +1210,8 @@ static int pxa3xx_nand_resume(struct platform_device *pdev) /* We don't want to handle interrupt without calling mtd routine */ disable_int(info, NDCR_INT_MASK); - nand_writel(info, NDTR0CS0, info->ndtr0cs0); - nand_writel(info, NDTR1CS0, info->ndtr1cs0); + nand_writel(info, NDTR0CS0, info->host->ndtr0cs0); + nand_writel(info, NDTR1CS0, info->host->ndtr1cs0); /* * As the spec says, the NDSR would be updated to 0x1800 when -- cgit v1.2.3 From f3c8cfc237927cc095e8bcb1e3794cfa76390bab Mon Sep 17 00:00:00 2001 From: Lei Wen Date: Thu, 14 Jul 2011 20:44:33 -0700 Subject: mtd: pxa3xx_nand: enable multiple chip select support Current pxa3xx_nand controller has two chip select which both be workable. This patch enable this feature. Update platform driver to support this feature. Another notice should be taken that: When you want to use this feature, you should not enable the keep configuration feature, for two chip select could be attached with different nand chip. The different page size and timing requirement make the keep configuration impossible. Signed-off-by: Lei Wen --- drivers/mtd/nand/pxa3xx_nand.c | 173 +++++++++++++++++++++++++++++------------ 1 file changed, 123 insertions(+), 50 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 97b689499119..9eb7f879969e 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -130,6 +130,7 @@ struct pxa3xx_nand_host { /* page size of attached chip */ unsigned int page_size; int use_ecc; + int cs; /* calculated from pxa3xx_nand_flash data */ unsigned int col_addr_cycles; @@ -165,9 +166,10 @@ struct pxa3xx_nand_info { struct pxa_dma_desc *data_desc; dma_addr_t data_desc_addr; - struct pxa3xx_nand_host *host; + struct pxa3xx_nand_host *host[NUM_CHIP_SELECT]; unsigned int state; + int cs; int use_ecc; /* use HW ECC ? */ int use_dma; /* use DMA ? */ int is_ready; @@ -226,7 +228,7 @@ static struct pxa3xx_nand_flash builtin_flash_types[] = { /* Define a default flash type setting serve as flash detecting only */ #define DEFAULT_FLASH_TYPE (&builtin_flash_types[0]) -const char *mtd_names[] = {"pxa3xx_nand-0", NULL}; +const char *mtd_names[] = {"pxa3xx_nand-0", "pxa3xx_nand-1", NULL}; #define NDTR0_tCH(c) (min((c), 7) << 19) #define NDTR0_tCS(c) (min((c), 7) << 16) @@ -268,7 +270,7 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_host *host, static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info) { - struct pxa3xx_nand_host *host = info->host; + struct pxa3xx_nand_host *host = info->host[info->cs]; int oob_enable = host->reg_ndcr & NDCR_SPARE_EN; info->data_size = host->page_size; @@ -295,7 +297,7 @@ static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info) */ static void pxa3xx_nand_start(struct pxa3xx_nand_info *info) { - struct pxa3xx_nand_host *host = info->host; + struct pxa3xx_nand_host *host = info->host[info->cs]; uint32_t ndcr; ndcr = host->reg_ndcr; @@ -420,6 +422,15 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid) { struct pxa3xx_nand_info *info = devid; unsigned int status, is_completed = 0; + unsigned int ready, cmd_done; + + if (info->cs == 0) { + ready = NDSR_FLASH_RDY; + cmd_done = NDSR_CS0_CMDD; + } else { + ready = NDSR_RDY; + cmd_done = NDSR_CS1_CMDD; + } status = nand_readl(info, NDSR); @@ -441,11 +452,11 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid) handle_data_pio(info); } } - if (status & NDSR_CS0_CMDD) { + if (status & cmd_done) { info->state = STATE_CMD_DONE; is_completed = 1; } - if (status & NDSR_FLASH_RDY) { + if (status & ready) { info->is_ready = 1; info->state = STATE_READY; } @@ -480,9 +491,11 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, { uint16_t cmd; int addr_cycle, exec_cmd; - struct pxa3xx_nand_host *host = info->host; - struct mtd_info *mtd = host->mtd; + struct pxa3xx_nand_host *host; + struct mtd_info *mtd; + host = info->host[info->cs]; + mtd = host->mtd; addr_cycle = 0; exec_cmd = 1; @@ -492,8 +505,11 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command, info->oob_size = 0; info->use_ecc = 0; info->is_ready = 0; - info->ndcb0 = 0; info->retcode = ERR_NONE; + if (info->cs != 0) + info->ndcb0 = NDCB0_CSEL; + else + info->ndcb0 = 0; switch (command) { case NAND_CMD_READ0: @@ -637,6 +653,17 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command, if (host->reg_ndcr & NDCR_DWIDTH_M) column /= 2; + /* + * There may be different NAND chip hooked to + * different chip select, so check whether + * chip select has been changed, if yes, reset the timing + */ + if (info->cs != host->cs) { + info->cs = host->cs; + nand_writel(info, NDTR0CS0, host->ndtr0cs0); + nand_writel(info, NDTR1CS0, host->ndtr1cs0); + } + info->state = STATE_PREPARED; exec_cmd = prepare_command_pool(info, command, column, page_addr); if (exec_cmd) { @@ -778,7 +805,7 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, { struct platform_device *pdev = info->pdev; struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data; - struct pxa3xx_nand_host *host = info->host; + struct pxa3xx_nand_host *host = info->host[info->cs]; uint32_t ndcr = 0x0; /* enable all interrupts */ if (f->page_size != 2048 && f->page_size != 512) { @@ -822,7 +849,11 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info, static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info) { - struct pxa3xx_nand_host *host = info->host; + /* + * We set 0 by hard coding here, for we don't support keep_config + * when there is more than one chip attached to the controller + */ + struct pxa3xx_nand_host *host = info->host[0]; uint32_t ndcr = nand_readl(info, NDCR); if (ndcr & NDCR_PAGE_SZ) { @@ -884,9 +915,9 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info) static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info) { - struct mtd_info *mtd = info->host->mtd; + struct mtd_info *mtd; int ret; - + mtd = info->host[info->cs]->mtd; /* use the common timing to make a try */ ret = pxa3xx_nand_config_flash(info, &builtin_flash_types[0]); if (ret) @@ -917,7 +948,8 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) ret = pxa3xx_nand_sensing(info); if (ret) { - dev_info(&info->pdev->dev, "There is no nand chip on cs 0!\n"); + dev_info(&info->pdev->dev, "There is no chip on cs %d!\n", + info->cs); return ret; } @@ -996,41 +1028,47 @@ KEEP_CONFIG: static int alloc_nand_resource(struct platform_device *pdev) { + struct pxa3xx_nand_platform_data *pdata; struct pxa3xx_nand_info *info; struct pxa3xx_nand_host *host; struct nand_chip *chip; struct mtd_info *mtd; struct resource *r; - int ret, irq; + int ret, irq, cs; - info = kzalloc(sizeof(*info) + sizeof(*mtd) + sizeof(*host), - GFP_KERNEL); + pdata = pdev->dev.platform_data; + info = kzalloc(sizeof(*info) + (sizeof(*mtd) + + sizeof(*host)) * pdata->num_cs, GFP_KERNEL); if (!info) { dev_err(&pdev->dev, "failed to allocate memory\n"); return -ENOMEM; } - mtd = (struct mtd_info *)(&info[1]); - chip = (struct nand_chip *)(&mtd[1]); - host = (struct pxa3xx_nand_host *)chip; info->pdev = pdev; - info->host = host; - host->mtd = mtd; - host->info_data = info; - mtd->priv = host; - mtd->owner = THIS_MODULE; - - chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; - chip->ecc.write_page = pxa3xx_nand_write_page_hwecc; - chip->controller = &info->controller; - chip->waitfunc = pxa3xx_nand_waitfunc; - chip->select_chip = pxa3xx_nand_select_chip; - chip->cmdfunc = pxa3xx_nand_cmdfunc; - chip->read_word = pxa3xx_nand_read_word; - chip->read_byte = pxa3xx_nand_read_byte; - chip->read_buf = pxa3xx_nand_read_buf; - chip->write_buf = pxa3xx_nand_write_buf; - chip->verify_buf = pxa3xx_nand_verify_buf; + for (cs = 0; cs < pdata->num_cs; cs++) { + mtd = (struct mtd_info *)((unsigned int)&info[1] + + (sizeof(*mtd) + sizeof(*host)) * cs); + chip = (struct nand_chip *)(&mtd[1]); + host = (struct pxa3xx_nand_host *)chip; + info->host[cs] = host; + host->mtd = mtd; + host->cs = cs; + host->info_data = info; + mtd->priv = host; + mtd->owner = THIS_MODULE; + + chip->ecc.read_page = pxa3xx_nand_read_page_hwecc; + chip->ecc.write_page = pxa3xx_nand_write_page_hwecc; + chip->controller = &info->controller; + chip->waitfunc = pxa3xx_nand_waitfunc; + chip->select_chip = pxa3xx_nand_select_chip; + chip->cmdfunc = pxa3xx_nand_cmdfunc; + chip->read_word = pxa3xx_nand_read_word; + chip->read_byte = pxa3xx_nand_read_byte; + chip->read_buf = pxa3xx_nand_read_buf; + chip->write_buf = pxa3xx_nand_write_buf; + chip->verify_buf = pxa3xx_nand_verify_buf; + } spin_lock_init(&chip->controller->lock); init_waitqueue_head(&chip->controller->wq); @@ -1128,12 +1166,14 @@ fail_free_mtd: static int pxa3xx_nand_remove(struct platform_device *pdev) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); + struct pxa3xx_nand_platform_data *pdata; struct resource *r; - int irq; + int irq, cs; if (!info) return 0; + pdata = pdev->dev.platform_data; platform_set_drvdata(pdev, NULL); irq = platform_get_irq(pdev, 0); @@ -1153,7 +1193,8 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) clk_disable(info->clk); clk_put(info->clk); - nand_release(info->host->mtd); + for (cs = 0; cs < pdata->num_cs; cs++) + nand_release(info->host[cs]->mtd); kfree(info); return 0; } @@ -1162,7 +1203,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) { struct pxa3xx_nand_platform_data *pdata; struct pxa3xx_nand_info *info; - int ret; + int ret, cs, probe_success; pdata = pdev->dev.platform_data; if (!pdata) { @@ -1177,41 +1218,69 @@ static int pxa3xx_nand_probe(struct platform_device *pdev) } info = platform_get_drvdata(pdev); - if (pxa3xx_nand_scan(info->host->mtd)) { - dev_err(&pdev->dev, "failed to scan nand\n"); + probe_success = 0; + for (cs = 0; cs < pdata->num_cs; cs++) { + info->cs = cs; + ret = pxa3xx_nand_scan(info->host[cs]->mtd); + if (ret) { + dev_warn(&pdev->dev, "failed to scan nand at cs %d\n", + cs); + continue; + } + + ret = mtd_device_parse_register(info->host[cs]->mtd, NULL, 0, + pdata->parts[cs], pdata->nr_parts[cs]); + if (!ret) + probe_success = 1; + } + + if (!probe_success) { pxa3xx_nand_remove(pdev); return -ENODEV; } - return mtd_device_parse_register(info->host->mtd, NULL, 0, - pdata->parts, pdata->nr_parts); + return 0; } #ifdef CONFIG_PM static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); - struct mtd_info *mtd = info->mtd; + struct pxa3xx_nand_platform_data *pdata; + struct mtd_info *mtd; + int cs; + pdata = pdev->dev.platform_data; if (info->state) { dev_err(&pdev->dev, "driver busy, state = %d\n", info->state); return -EAGAIN; } - mtd->suspend(mtd); + for (cs = 0; cs < pdata->num_cs; cs++) { + mtd = info->host[cs]->mtd; + mtd->suspend(mtd); + } + return 0; } static int pxa3xx_nand_resume(struct platform_device *pdev) { struct pxa3xx_nand_info *info = platform_get_drvdata(pdev); - struct mtd_info *mtd = info->mtd; + struct pxa3xx_nand_platform_data *pdata; + struct mtd_info *mtd; + int cs; + pdata = pdev->dev.platform_data; /* We don't want to handle interrupt without calling mtd routine */ disable_int(info, NDCR_INT_MASK); - nand_writel(info, NDTR0CS0, info->host->ndtr0cs0); - nand_writel(info, NDTR1CS0, info->host->ndtr1cs0); + /* + * Directly set the chip select to a invalid value, + * then the driver would reset the timing according + * to current chip select at the beginning of cmdfunc + */ + info->cs = 0xff; /* * As the spec says, the NDSR would be updated to 0x1800 when @@ -1220,7 +1289,11 @@ static int pxa3xx_nand_resume(struct platform_device *pdev) * all status before resume */ nand_writel(info, NDSR, NDSR_MASK); - mtd->resume(mtd); + for (cs = 0; cs < pdata->num_cs; cs++) { + mtd = info->host[cs]->mtd; + mtd->resume(mtd); + } + return 0; } #else -- cgit v1.2.3 From b94e757c4b3aafa52f8b82efed8660427a8d2880 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 15 Jul 2011 16:38:56 +0800 Subject: mtd: dataflash: add device tree probe support It adds device tree probe support for mtd_dataflash driver. Signed-off-by: Shawn Guo Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/mtd_dataflash.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 8f6b02c43b43..c86fa573c303 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -17,6 +17,8 @@ #include #include #include +#include +#include #include #include @@ -24,7 +26,6 @@ #include #include - /* * DataFlash is a kind of SPI flash. Most AT45 chips have two buffers in * each chip, which may be used for double buffered I/O; but this driver @@ -98,6 +99,16 @@ struct dataflash { struct mtd_info mtd; }; +#ifdef CONFIG_OF +static const struct of_device_id dataflash_dt_ids[] = { + { .compatible = "atmel,at45", }, + { .compatible = "atmel,dataflash", }, + { /* sentinel */ } +}; +#else +#define dataflash_dt_ids NULL +#endif + /* ......................................................................... */ /* @@ -634,6 +645,7 @@ add_dataflash_otp(struct spi_device *spi, char *name, { struct dataflash *priv; struct mtd_info *device; + struct mtd_part_parser_data ppdata; struct flash_platform_data *pdata = spi->dev.platform_data; char *otp_tag = ""; int err = 0; @@ -675,7 +687,8 @@ add_dataflash_otp(struct spi_device *spi, char *name, pagesize, otp_tag); dev_set_drvdata(&spi->dev, priv); - err = mtd_device_parse_register(device, NULL, 0, + ppdata.of_node = spi->dev.of_node; + err = mtd_device_parse_register(device, NULL, &ppdata, pdata ? pdata->parts : NULL, pdata ? pdata->nr_parts : 0); @@ -926,6 +939,7 @@ static struct spi_driver dataflash_driver = { .name = "mtd_dataflash", .bus = &spi_bus_type, .owner = THIS_MODULE, + .of_match_table = dataflash_dt_ids, }, .probe = dataflash_probe, -- cgit v1.2.3 From a0f5080ecc1c75f9c08591d9b0f48451e7ac8ddc Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:06 -0700 Subject: mtd: nand: change KERN_DEBUG to KERN_INFO Soon we will change many printk statements into pr_* statements, i.e., 'printk(KERN_INFO, ...)' becomes 'pr_info(...)'. However, this means that KERN_DEBUG messages will become pr_debug() statements and therefore will not be activated by default - they must be enabled using dynamic debug. So, for important DEBUG messages, we will simply upgrade these to INFO so that they appear by default. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index a4fcbf1cbc76..0d2eaa72288f 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -219,7 +219,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, if (tmp == msk) continue; if (reserved_block_code && (tmp == reserved_block_code)) { - printk(KERN_DEBUG "nand_read_bbt: Reserved block at 0x%012llx\n", + printk(KERN_INFO "nand_read_bbt: Reserved block at 0x%012llx\n", (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06); mtd->ecc_stats.bbtblocks++; @@ -227,9 +227,9 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, } /* * Leave it for now, if it's matured we can - * move this message to MTD_DEBUG_LEVEL0. + * move this message to pr_debug. */ - printk(KERN_DEBUG "nand_read_bbt: Bad block at 0x%012llx\n", + printk(KERN_INFO "nand_read_bbt: Bad block at 0x%012llx\n", (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); /* Factory marked bad or worn out? */ if (tmp == 0) @@ -389,7 +389,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, scan_read_raw(mtd, buf, (loff_t)td->pages[0] << this->page_shift, mtd->writesize, td); td->version[0] = buf[bbt_get_ver_offs(mtd, td)]; - printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", + printk(KERN_INFO "Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]); } @@ -398,7 +398,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift, mtd->writesize, td); md->version[0] = buf[bbt_get_ver_offs(mtd, md)]; - printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n", + printk(KERN_INFO "Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]); } return 1; @@ -616,7 +616,7 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr if (td->pages[i] == -1) printk(KERN_WARNING "Bad block table not found for chip %d\n", i); else - printk(KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i], + printk(KERN_INFO "Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]); } return 0; @@ -847,7 +847,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (res < 0) goto outerr; - printk(KERN_DEBUG "Bad block table written to 0x%012llx, version " + printk(KERN_INFO "Bad block table written to 0x%012llx, version " "0x%02X\n", (unsigned long long)to, td->version[chip]); /* Mark it as used */ -- cgit v1.2.3 From 9a4d4d69018e7b719ba58fa30fcdd60e547776b8 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:07 -0700 Subject: mtd: nand: convert printk() to pr_*() Instead of directly calling printk, it's simpler to use the built-in pr_* functions. This shortens code and allows easy customization through the definition of a pr_fmt() macro (not used currently). Ideally, we could implement much of this with dev_* functions, but the MTD subsystem does not necessarily register all its master `mtd_info.dev` device, so we cannot use dev_* consistently. See: http://lists.infradead.org/pipermail/linux-mtd/2011-July/036950.html Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 44 ++++++++++++++++++++++---------------------- drivers/mtd/nand/nand_bbt.c | 34 +++++++++++++++++----------------- 2 files changed, 39 insertions(+), 39 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 250e86f5592e..1d6c81aef779 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2179,7 +2179,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, /* Reject writes, which are not page aligned */ if (NOTALIGNED(to) || NOTALIGNED(ops->len)) { - printk(KERN_NOTICE "%s: Attempt to write not " + pr_notice("%s: Attempt to write not " "page aligned data\n", __func__); return -EINVAL; } @@ -2570,7 +2570,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* Heck if we have a bad block, we do not erase bad blocks! */ if (nand_block_checkbad(mtd, ((loff_t) page) << chip->page_shift, 0, allowbbt)) { - printk(KERN_WARNING "%s: attempt to erase a bad block " + pr_warn("%s: attempt to erase a bad block " "at page 0x%08x\n", __func__, page); instr->state = MTD_ERASE_FAILED; goto erase_exit; @@ -2744,7 +2744,7 @@ static void nand_resume(struct mtd_info *mtd) if (chip->state == FL_PM_SUSPENDED) nand_release_device(mtd); else - printk(KERN_ERR "%s called for a chip which is not " + pr_err("%s called for a chip which is not " "in suspended state\n", __func__); } @@ -2836,13 +2836,13 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I') return 0; - printk(KERN_INFO "ONFI flash detected\n"); + pr_info("ONFI flash detected\n"); chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1); for (i = 0; i < 3; i++) { chip->read_buf(mtd, (uint8_t *)p, sizeof(*p)); if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) == le16_to_cpu(p->crc)) { - printk(KERN_INFO "ONFI param page %d valid\n", i); + pr_info("ONFI param page %d valid\n", i); break; } } @@ -2866,7 +2866,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, chip->onfi_version = 0; if (!chip->onfi_version) { - printk(KERN_INFO "%s: unsupported ONFI version: %d\n", + pr_info("%s: unsupported ONFI version: %d\n", __func__, val); return 0; } @@ -2932,7 +2932,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, id_data[i] = chip->read_byte(mtd); if (id_data[0] != *maf_id || id_data[1] != *dev_id) { - printk(KERN_INFO "%s: second ID read did not match " + pr_info("%s: second ID read did not match " "%02x,%02x against %02x,%02x\n", __func__, *maf_id, *dev_id, id_data[0], id_data[1]); return ERR_PTR(-ENODEV); @@ -3077,10 +3077,10 @@ ident_done: * chip correct! */ if (busw != (chip->options & NAND_BUSWIDTH_16)) { - printk(KERN_INFO "NAND device: Manufacturer ID:" + pr_info("NAND device: Manufacturer ID:" " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, *dev_id, nand_manuf_ids[maf_idx].name, mtd->name); - printk(KERN_WARNING "NAND bus width %d instead %d bit\n", + pr_warn("NAND bus width %d instead %d bit\n", (chip->options & NAND_BUSWIDTH_16) ? 16 : 8, busw ? 16 : 8); return ERR_PTR(-EINVAL); @@ -3138,7 +3138,7 @@ ident_done: if (mtd->writesize > 512 && chip->cmdfunc == nand_command) chip->cmdfunc = nand_command_lp; - printk(KERN_INFO "NAND device: Manufacturer ID:" + pr_info("NAND device: Manufacturer ID:" " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, *dev_id, nand_manuf_ids[maf_idx].name, chip->onfi_version ? chip->onfi_params.model : type->name); @@ -3175,7 +3175,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, if (IS_ERR(type)) { if (!(chip->options & NAND_SCAN_SILENT_NODEV)) - printk(KERN_WARNING "No NAND device found.\n"); + pr_warn("No NAND device found.\n"); chip->select_chip(mtd, -1); return PTR_ERR(type); } @@ -3193,7 +3193,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, break; } if (i > 1) - printk(KERN_INFO "%d NAND chips detected\n", i); + pr_info("%d NAND chips detected\n", i); /* Store the number of chips and calc total size for mtd */ chip->numchips = i; @@ -3243,7 +3243,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.layout = &nand_oob_128; break; default: - printk(KERN_WARNING "No oob scheme defined for " + pr_warn("No oob scheme defined for " "oobsize %d\n", mtd->oobsize); BUG(); } @@ -3262,7 +3262,7 @@ int nand_scan_tail(struct mtd_info *mtd) /* Similar to NAND_ECC_HW, but a separate read_page handle */ if (!chip->ecc.calculate || !chip->ecc.correct || !chip->ecc.hwctl) { - printk(KERN_WARNING "No ECC functions supplied; " + pr_warn("No ECC functions supplied; " "Hardware ECC not possible\n"); BUG(); } @@ -3291,7 +3291,7 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.read_page == nand_read_page_hwecc || !chip->ecc.write_page || chip->ecc.write_page == nand_write_page_hwecc)) { - printk(KERN_WARNING "No ECC functions supplied; " + pr_warn("No ECC functions supplied; " "Hardware ECC not possible\n"); BUG(); } @@ -3311,7 +3311,7 @@ int nand_scan_tail(struct mtd_info *mtd) if (mtd->writesize >= chip->ecc.size) break; - printk(KERN_WARNING "%d byte HW ECC not possible on " + pr_warn("%d byte HW ECC not possible on " "%d byte page size, fallback to SW ECC\n", chip->ecc.size, mtd->writesize); chip->ecc.mode = NAND_ECC_SOFT; @@ -3333,7 +3333,7 @@ int nand_scan_tail(struct mtd_info *mtd) case NAND_ECC_SOFT_BCH: if (!mtd_nand_has_bch()) { - printk(KERN_WARNING "CONFIG_MTD_ECC_BCH not enabled\n"); + pr_warn("CONFIG_MTD_ECC_BCH not enabled\n"); BUG(); } chip->ecc.calculate = nand_bch_calculate_ecc; @@ -3360,13 +3360,13 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.bytes, &chip->ecc.layout); if (!chip->ecc.priv) { - printk(KERN_WARNING "BCH ECC initialization failed!\n"); + pr_warn("BCH ECC initialization failed!\n"); BUG(); } break; case NAND_ECC_NONE: - printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. " + pr_warn("NAND_ECC_NONE selected by board driver. " "This is not recommended !!\n"); chip->ecc.read_page = nand_read_page_raw; chip->ecc.write_page = nand_write_page_raw; @@ -3379,7 +3379,7 @@ int nand_scan_tail(struct mtd_info *mtd) break; default: - printk(KERN_WARNING "Invalid NAND_ECC_MODE %d\n", + pr_warn("Invalid NAND_ECC_MODE %d\n", chip->ecc.mode); BUG(); } @@ -3401,7 +3401,7 @@ int nand_scan_tail(struct mtd_info *mtd) */ chip->ecc.steps = mtd->writesize / chip->ecc.size; if (chip->ecc.steps * chip->ecc.size != mtd->writesize) { - printk(KERN_WARNING "Invalid ECC parameters\n"); + pr_warn("Invalid ECC parameters\n"); BUG(); } chip->ecc.total = chip->ecc.steps * chip->ecc.bytes; @@ -3492,7 +3492,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips) /* Many callers got this wrong, so check for it for a while... */ if (!mtd->owner && caller_is_module()) { - printk(KERN_CRIT "%s called with NULL mtd->owner!\n", + pr_crit("%s called with NULL mtd->owner!\n", __func__); BUG(); } diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 0d2eaa72288f..76f496d2bfed 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -205,10 +205,10 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, res = mtd->read(mtd, from, len, &retlen, buf); if (res < 0) { if (retlen != len) { - printk(KERN_INFO "nand_bbt: Error reading bad block table\n"); + pr_info("nand_bbt: Error reading bad block table\n"); return res; } - printk(KERN_WARNING "nand_bbt: ECC error while reading bad block table\n"); + pr_warn("nand_bbt: ECC error while reading bad block table\n"); } /* Analyse data */ @@ -219,7 +219,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, if (tmp == msk) continue; if (reserved_block_code && (tmp == reserved_block_code)) { - printk(KERN_INFO "nand_read_bbt: Reserved block at 0x%012llx\n", + pr_info("nand_read_bbt: Reserved block at 0x%012llx\n", (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06); mtd->ecc_stats.bbtblocks++; @@ -229,7 +229,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, * Leave it for now, if it's matured we can * move this message to pr_debug. */ - printk(KERN_INFO "nand_read_bbt: Bad block at 0x%012llx\n", + pr_info("nand_read_bbt: Bad block at 0x%012llx\n", (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); /* Factory marked bad or worn out? */ if (tmp == 0) @@ -389,7 +389,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, scan_read_raw(mtd, buf, (loff_t)td->pages[0] << this->page_shift, mtd->writesize, td); td->version[0] = buf[bbt_get_ver_offs(mtd, td)]; - printk(KERN_INFO "Bad block table at page %d, version 0x%02X\n", + pr_info("Bad block table at page %d, version 0x%02X\n", td->pages[0], td->version[0]); } @@ -398,7 +398,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift, mtd->writesize, td); md->version[0] = buf[bbt_get_ver_offs(mtd, md)]; - printk(KERN_INFO "Bad block table at page %d, version 0x%02X\n", + pr_info("Bad block table at page %d, version 0x%02X\n", md->pages[0], md->version[0]); } return 1; @@ -473,7 +473,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, loff_t from; size_t readlen; - printk(KERN_INFO "Scanning device for bad blocks\n"); + pr_info("Scanning device for bad blocks\n"); if (bd->options & NAND_BBT_SCANALLPAGES) len = 1 << (this->bbt_erase_shift - this->page_shift); @@ -502,7 +502,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, from = 0; } else { if (chip >= this->numchips) { - printk(KERN_WARNING "create_bbt(): chipnr (%d) > available chips (%d)\n", + pr_warn("create_bbt(): chipnr (%d) > available chips (%d)\n", chip + 1, this->numchips); return -EINVAL; } @@ -531,7 +531,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, if (ret) { this->bbt[i >> 3] |= 0x03 << (i & 0x6); - printk(KERN_WARNING "Bad eraseblock %d at 0x%012llx\n", + pr_warn("Bad eraseblock %d at 0x%012llx\n", i >> 1, (unsigned long long)from); mtd->ecc_stats.badblocks++; } @@ -614,9 +614,9 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr /* Check, if we found a bbt for each requested chip */ for (i = 0; i < chips; i++) { if (td->pages[i] == -1) - printk(KERN_WARNING "Bad block table not found for chip %d\n", i); + pr_warn("Bad block table not found for chip %d\n", i); else - printk(KERN_INFO "Bad block table found at page %d, version 0x%02X\n", td->pages[i], + pr_info("Bad block table found at page %d, version 0x%02X\n", td->pages[i], td->version[i]); } return 0; @@ -730,7 +730,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (!md || md->pages[chip] != page) goto write; } - printk(KERN_ERR "No space left to write bad block table\n"); + pr_err("No space left to write bad block table\n"); return -ENOSPC; write: @@ -765,12 +765,12 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, res = mtd->read(mtd, to, len, &retlen, buf); if (res < 0) { if (retlen != len) { - printk(KERN_INFO "nand_bbt: Error " + pr_info("nand_bbt: Error " "reading block for writing " "the bad block table\n"); return res; } - printk(KERN_WARNING "nand_bbt: ECC error " + pr_warn("nand_bbt: ECC error " "while reading block for writing " "bad block table\n"); } @@ -847,7 +847,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (res < 0) goto outerr; - printk(KERN_INFO "Bad block table written to 0x%012llx, version " + pr_info("Bad block table written to 0x%012llx, version " "0x%02X\n", (unsigned long long)to, td->version[chip]); /* Mark it as used */ @@ -1137,7 +1137,7 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) */ if (!td) { if ((res = nand_memory_bbt(mtd, bd))) { - printk(KERN_ERR "nand_bbt: Can't scan flash and build the RAM-based BBT\n"); + pr_err("nand_bbt: Can't scan flash and build the RAM-based BBT\n"); kfree(this->bbt); this->bbt = NULL; } @@ -1305,7 +1305,7 @@ static int nand_create_default_bbt_descr(struct nand_chip *this) { struct nand_bbt_descr *bd; if (this->badblock_pattern) { - printk(KERN_WARNING "BBT descr already allocated; not replacing.\n"); + pr_warn("BBT descr already allocated; not replacing.\n"); return -EINVAL; } bd = kzalloc(sizeof(*bd), GFP_KERNEL); -- cgit v1.2.3 From d037021953922ebdbc34b98b8c4648017b1c6e89 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:08 -0700 Subject: mtd: nand: style fixups in pr_* messages This is a cleanup of some punctuation, indentation, and capitalization on the lines affected affected by the last patch. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 49 +++++++++++++++++++++----------------------- drivers/mtd/nand/nand_bbt.c | 41 +++++++++++++++++------------------- 2 files changed, 42 insertions(+), 48 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 1d6c81aef779..6a5271256245 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2179,8 +2179,8 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, /* Reject writes, which are not page aligned */ if (NOTALIGNED(to) || NOTALIGNED(ops->len)) { - pr_notice("%s: Attempt to write not " - "page aligned data\n", __func__); + pr_notice("%s: attempt to write non page aligned data\n", + __func__); return -EINVAL; } @@ -2570,8 +2570,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* Heck if we have a bad block, we do not erase bad blocks! */ if (nand_block_checkbad(mtd, ((loff_t) page) << chip->page_shift, 0, allowbbt)) { - pr_warn("%s: attempt to erase a bad block " - "at page 0x%08x\n", __func__, page); + pr_warn("%s: attempt to erase a bad block at page 0x%08x\n", + __func__, page); instr->state = MTD_ERASE_FAILED; goto erase_exit; } @@ -2744,8 +2744,8 @@ static void nand_resume(struct mtd_info *mtd) if (chip->state == FL_PM_SUSPENDED) nand_release_device(mtd); else - pr_err("%s called for a chip which is not " - "in suspended state\n", __func__); + pr_err("%s called for a chip which is not in suspended state\n", + __func__); } /* Set default functions */ @@ -2866,8 +2866,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, chip->onfi_version = 0; if (!chip->onfi_version) { - pr_info("%s: unsupported ONFI version: %d\n", - __func__, val); + pr_info("%s: unsupported ONFI version: %d\n", __func__, val); return 0; } @@ -2933,8 +2932,8 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, if (id_data[0] != *maf_id || id_data[1] != *dev_id) { pr_info("%s: second ID read did not match " - "%02x,%02x against %02x,%02x\n", __func__, - *maf_id, *dev_id, id_data[0], id_data[1]); + "%02x,%02x against %02x,%02x\n", __func__, + *maf_id, *dev_id, id_data[0], id_data[1]); return ERR_PTR(-ENODEV); } @@ -3078,11 +3077,11 @@ ident_done: */ if (busw != (chip->options & NAND_BUSWIDTH_16)) { pr_info("NAND device: Manufacturer ID:" - " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, - *dev_id, nand_manuf_ids[maf_idx].name, mtd->name); + " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, + *dev_id, nand_manuf_ids[maf_idx].name, mtd->name); pr_warn("NAND bus width %d instead %d bit\n", - (chip->options & NAND_BUSWIDTH_16) ? 16 : 8, - busw ? 16 : 8); + (chip->options & NAND_BUSWIDTH_16) ? 16 : 8, + busw ? 16 : 8); return ERR_PTR(-EINVAL); } @@ -3175,7 +3174,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips, if (IS_ERR(type)) { if (!(chip->options & NAND_SCAN_SILENT_NODEV)) - pr_warn("No NAND device found.\n"); + pr_warn("No NAND device found\n"); chip->select_chip(mtd, -1); return PTR_ERR(type); } @@ -3243,8 +3242,8 @@ int nand_scan_tail(struct mtd_info *mtd) chip->ecc.layout = &nand_oob_128; break; default: - pr_warn("No oob scheme defined for " - "oobsize %d\n", mtd->oobsize); + pr_warn("No oob scheme defined for oobsize %d\n", + mtd->oobsize); BUG(); } } @@ -3263,7 +3262,7 @@ int nand_scan_tail(struct mtd_info *mtd) if (!chip->ecc.calculate || !chip->ecc.correct || !chip->ecc.hwctl) { pr_warn("No ECC functions supplied; " - "Hardware ECC not possible\n"); + "hardware ECC not possible\n"); BUG(); } if (!chip->ecc.read_page) @@ -3292,7 +3291,7 @@ int nand_scan_tail(struct mtd_info *mtd) !chip->ecc.write_page || chip->ecc.write_page == nand_write_page_hwecc)) { pr_warn("No ECC functions supplied; " - "Hardware ECC not possible\n"); + "hardware ECC not possible\n"); BUG(); } /* Use standard syndrome read/write page function? */ @@ -3312,8 +3311,8 @@ int nand_scan_tail(struct mtd_info *mtd) if (mtd->writesize >= chip->ecc.size) break; pr_warn("%d byte HW ECC not possible on " - "%d byte page size, fallback to SW ECC\n", - chip->ecc.size, mtd->writesize); + "%d byte page size, fallback to SW ECC\n", + chip->ecc.size, mtd->writesize); chip->ecc.mode = NAND_ECC_SOFT; case NAND_ECC_SOFT: @@ -3367,7 +3366,7 @@ int nand_scan_tail(struct mtd_info *mtd) case NAND_ECC_NONE: pr_warn("NAND_ECC_NONE selected by board driver. " - "This is not recommended !!\n"); + "This is not recommended!\n"); chip->ecc.read_page = nand_read_page_raw; chip->ecc.write_page = nand_write_page_raw; chip->ecc.read_oob = nand_read_oob_std; @@ -3379,8 +3378,7 @@ int nand_scan_tail(struct mtd_info *mtd) break; default: - pr_warn("Invalid NAND_ECC_MODE %d\n", - chip->ecc.mode); + pr_warn("Invalid NAND_ECC_MODE %d\n", chip->ecc.mode); BUG(); } @@ -3492,8 +3490,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips) /* Many callers got this wrong, so check for it for a while... */ if (!mtd->owner && caller_is_module()) { - pr_crit("%s called with NULL mtd->owner!\n", - __func__); + pr_crit("%s called with NULL mtd->owner!\n", __func__); BUG(); } diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 76f496d2bfed..dba332327d4f 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -205,7 +205,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, res = mtd->read(mtd, from, len, &retlen, buf); if (res < 0) { if (retlen != len) { - pr_info("nand_bbt: Error reading bad block table\n"); + pr_info("nand_bbt: error reading bad block table\n"); return res; } pr_warn("nand_bbt: ECC error while reading bad block table\n"); @@ -219,8 +219,8 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, if (tmp == msk) continue; if (reserved_block_code && (tmp == reserved_block_code)) { - pr_info("nand_read_bbt: Reserved block at 0x%012llx\n", - (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); + pr_info("nand_read_bbt: reserved block at 0x%012llx\n", + (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06); mtd->ecc_stats.bbtblocks++; continue; @@ -229,8 +229,8 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, * Leave it for now, if it's matured we can * move this message to pr_debug. */ - pr_info("nand_read_bbt: Bad block at 0x%012llx\n", - (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); + pr_info("nand_read_bbt: bad block at 0x%012llx\n", + (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift); /* Factory marked bad or worn out? */ if (tmp == 0) this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06); @@ -390,7 +390,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, mtd->writesize, td); td->version[0] = buf[bbt_get_ver_offs(mtd, td)]; pr_info("Bad block table at page %d, version 0x%02X\n", - td->pages[0], td->version[0]); + td->pages[0], td->version[0]); } /* Read the mirror version, if available */ @@ -399,7 +399,7 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf, mtd->writesize, td); md->version[0] = buf[bbt_get_ver_offs(mtd, md)]; pr_info("Bad block table at page %d, version 0x%02X\n", - md->pages[0], md->version[0]); + md->pages[0], md->version[0]); } return 1; } @@ -532,7 +532,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, if (ret) { this->bbt[i >> 3] |= 0x03 << (i & 0x6); pr_warn("Bad eraseblock %d at 0x%012llx\n", - i >> 1, (unsigned long long)from); + i >> 1, (unsigned long long)from); mtd->ecc_stats.badblocks++; } @@ -616,8 +616,8 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr if (td->pages[i] == -1) pr_warn("Bad block table not found for chip %d\n", i); else - pr_info("Bad block table found at page %d, version 0x%02X\n", td->pages[i], - td->version[i]); + pr_info("Bad block table found at page %d, version " + "0x%02X\n", td->pages[i], td->version[i]); } return 0; } @@ -765,14 +765,12 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, res = mtd->read(mtd, to, len, &retlen, buf); if (res < 0) { if (retlen != len) { - pr_info("nand_bbt: Error " - "reading block for writing " - "the bad block table\n"); + pr_info("nand_bbt: error reading block " + "for writing the bad block table\n"); return res; } - pr_warn("nand_bbt: ECC error " - "while reading block for writing " - "bad block table\n"); + pr_warn("nand_bbt: ECC error while reading " + "block for writing bad block table\n"); } /* Read oob data */ ops.ooblen = (len >> this->page_shift) * mtd->oobsize; @@ -847,8 +845,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (res < 0) goto outerr; - pr_info("Bad block table written to 0x%012llx, version " - "0x%02X\n", (unsigned long long)to, td->version[chip]); + pr_info("Bad block table written to 0x%012llx, version 0x%02X\n", + (unsigned long long)to, td->version[chip]); /* Mark it as used */ td->pages[chip] = page; @@ -856,8 +854,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, return 0; outerr: - printk(KERN_WARNING - "nand_bbt: Error while writing bad block table %d\n", res); + pr_warn("nand_bbt: error while writing bad block table %d\n", res); return res; } @@ -1137,7 +1134,7 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) */ if (!td) { if ((res = nand_memory_bbt(mtd, bd))) { - pr_err("nand_bbt: Can't scan flash and build the RAM-based BBT\n"); + pr_err("nand_bbt: can't scan flash and build the RAM-based BBT\n"); kfree(this->bbt); this->bbt = NULL; } @@ -1305,7 +1302,7 @@ static int nand_create_default_bbt_descr(struct nand_chip *this) { struct nand_bbt_descr *bd; if (this->badblock_pattern) { - pr_warn("BBT descr already allocated; not replacing.\n"); + pr_warn("BBT descr already allocated; not replacing\n"); return -EINVAL; } bd = kzalloc(sizeof(*bd), GFP_KERNEL); -- cgit v1.2.3 From 289c05222172b51401dbbb017115655f241d94ab Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:09 -0700 Subject: mtd: replace DEBUG() with pr_debug() Start moving away from the MTD_DEBUG_LEVEL messages. The dynamic debugging feature is a generic kernel feature that provides more flexibility. (See Documentation/dynamic-debug-howto.txt) Also fix some punctuation, indentation, and capitalization that went along with the affected lines. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/chips/cfi_cmdset_0002.c | 27 ++++++-------- drivers/mtd/chips/fwh_lock.h | 3 +- drivers/mtd/chips/jedec_probe.c | 32 ++++++---------- drivers/mtd/devices/doc2000.c | 11 ++---- drivers/mtd/devices/doc2001.c | 5 +-- drivers/mtd/devices/doc2001plus.c | 5 +-- drivers/mtd/devices/m25p80.c | 20 +++++----- drivers/mtd/devices/mtd_dataflash.c | 43 +++++++++++---------- drivers/mtd/devices/sst25l.c | 3 +- drivers/mtd/ftl.c | 38 +++++++++---------- drivers/mtd/inftlcore.c | 38 +++++++++---------- drivers/mtd/inftlmount.c | 12 +++--- drivers/mtd/mtdblock.c | 14 +++---- drivers/mtd/mtdchar.c | 10 ++--- drivers/mtd/mtdcore.c | 2 +- drivers/mtd/mtdsuper.c | 20 +++++----- drivers/mtd/nand/mxc_nand.c | 14 +++---- drivers/mtd/nand/nand_base.c | 74 ++++++++++++++++++------------------- drivers/mtd/nand/nand_bbt.c | 5 ++- drivers/mtd/nand/nand_bch.c | 2 +- drivers/mtd/nand/omap2.c | 8 ++-- drivers/mtd/nand/rtc_from4.c | 2 +- drivers/mtd/nftlcore.c | 23 ++++++------ drivers/mtd/onenand/onenand_base.c | 18 ++++----- drivers/mtd/onenand/onenand_bbt.c | 2 +- drivers/mtd/ssfdc.c | 34 +++++++---------- 26 files changed, 216 insertions(+), 249 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 23175edd5634..2302cc00b4a9 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -145,8 +145,7 @@ static void fixup_amd_bootblock(struct mtd_info *mtd) if (((major << 8) | minor) < 0x3131) { /* CFI version 1.0 => don't trust bootloc */ - DEBUG(MTD_DEBUG_LEVEL1, - "%s: JEDEC Vendor ID is 0x%02X Device ID is 0x%02X\n", + pr_debug("%s: JEDEC Vendor ID is 0x%02X Device ID is 0x%02X\n", map->name, cfi->mfr, cfi->id); /* AFAICS all 29LV400 with a bottom boot block have a device ID @@ -166,8 +165,7 @@ static void fixup_amd_bootblock(struct mtd_info *mtd) * the 8-bit device ID. */ (cfi->mfr == CFI_MFR_MACRONIX)) { - DEBUG(MTD_DEBUG_LEVEL1, - "%s: Macronix MX29LV400C with bottom boot block" + pr_debug("%s: Macronix MX29LV400C with bottom boot block" " detected\n", map->name); extp->TopBottom = 2; /* bottom boot */ } else @@ -178,8 +176,7 @@ static void fixup_amd_bootblock(struct mtd_info *mtd) extp->TopBottom = 2; /* bottom boot */ } - DEBUG(MTD_DEBUG_LEVEL1, - "%s: AMD CFI PRI V%c.%c has no boot block field;" + pr_debug("%s: AMD CFI PRI V%c.%c has no boot block field;" " deduced %s from Device ID\n", map->name, major, minor, extp->TopBottom == 2 ? "bottom" : "top"); } @@ -191,7 +188,7 @@ static void fixup_use_write_buffers(struct mtd_info *mtd) struct map_info *map = mtd->priv; struct cfi_private *cfi = map->fldrv_priv; if (cfi->cfiq->BufWriteTimeoutTyp) { - DEBUG(MTD_DEBUG_LEVEL1, "Using buffer write method\n" ); + pr_debug("Using buffer write method\n" ); mtd->write = cfi_amdstd_write_buffers; } } @@ -443,7 +440,7 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) mtd->writesize = 1; mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; - DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): write buffer size %d\n", + pr_debug("MTD %s(): write buffer size %d\n", __func__, mtd->writebufsize); mtd->reboot_notifier.notifier_call = cfi_amdstd_reboot; @@ -1163,7 +1160,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, return ret; } - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n", + pr_debug("MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n", __func__, adr, datum.x[0] ); /* @@ -1174,7 +1171,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip, */ oldd = map_read(map, adr); if (map_word_equal(map, oldd, datum)) { - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): NOP\n", + pr_debug("MTD %s(): NOP\n", __func__); goto op_done; } @@ -1400,7 +1397,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip, datum = map_word_load(map, buf); - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n", + pr_debug("MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n", __func__, adr, datum.x[0] ); XIP_INVAL_CACHED_RANGE(map, adr, len); @@ -1587,7 +1584,7 @@ static int __xipram do_erase_chip(struct map_info *map, struct flchip *chip) return ret; } - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): ERASE 0x%.8lx\n", + pr_debug("MTD %s(): ERASE 0x%.8lx\n", __func__, chip->start ); XIP_INVAL_CACHED_RANGE(map, adr, map->size); @@ -1675,7 +1672,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip, return ret; } - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): ERASE 0x%.8lx\n", + pr_debug("MTD %s(): ERASE 0x%.8lx\n", __func__, adr ); XIP_INVAL_CACHED_RANGE(map, adr, len); @@ -1801,7 +1798,7 @@ static int do_atmel_lock(struct map_info *map, struct flchip *chip, goto out_unlock; chip->state = FL_LOCKING; - DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n", + pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", __func__, adr, len); cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, @@ -1837,7 +1834,7 @@ static int do_atmel_unlock(struct map_info *map, struct flchip *chip, goto out_unlock; chip->state = FL_UNLOCKING; - DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n", + pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", __func__, adr, len); cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, diff --git a/drivers/mtd/chips/fwh_lock.h b/drivers/mtd/chips/fwh_lock.h index 5e3cc80128aa..89c6595454a5 100644 --- a/drivers/mtd/chips/fwh_lock.h +++ b/drivers/mtd/chips/fwh_lock.h @@ -34,8 +34,7 @@ static int fwh_xxlock_oneblock(struct map_info *map, struct flchip *chip, /* Refuse the operation if the we cannot look behind the chip */ if (chip->start < 0x400000) { - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): chip->start: %lx wanted >= 0x400000\n", + pr_debug( "MTD %s(): chip->start: %lx wanted >= 0x400000\n", __func__, chip->start ); return -EIO; } diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index d40c410a3241..c443f527a53a 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -1917,8 +1917,7 @@ static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi) * as they will ignore the writes and don't care what address * the F0 is written to */ if (cfi->addr_unlock1) { - DEBUG( MTD_DEBUG_LEVEL3, - "reset unlock called %x %x \n", + pr_debug( "reset unlock called %x %x \n", cfi->addr_unlock1,cfi->addr_unlock2); cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL); @@ -1941,7 +1940,7 @@ static int cfi_jedec_setup(struct map_info *map, struct cfi_private *cfi, int in uint8_t uaddr; if (!(jedec_table[index].devtypes & cfi->device_type)) { - DEBUG(MTD_DEBUG_LEVEL1, "Rejecting potential %s with incompatible %d-bit device type\n", + pr_debug("Rejecting potential %s with incompatible %d-bit device type\n", jedec_table[index].name, 4 * (1<device_type)); return 0; } @@ -2021,7 +2020,7 @@ static inline int jedec_match( uint32_t base, * there aren't. */ if (finfo->dev_id > 0xff) { - DEBUG( MTD_DEBUG_LEVEL3, "%s(): ID is not 8bit\n", + pr_debug("%s(): ID is not 8bit\n", __func__); goto match_done; } @@ -2045,12 +2044,10 @@ static inline int jedec_match( uint32_t base, } /* the part size must fit in the memory window */ - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n", + pr_debug("MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n", __func__, base, 1 << finfo->dev_size, base + (1 << finfo->dev_size) ); if ( base + cfi_interleave(cfi) * ( 1 << finfo->dev_size ) > map->size ) { - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n", + pr_debug("MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n", __func__, finfo->mfr_id, finfo->dev_id, 1 << finfo->dev_size ); goto match_done; @@ -2061,13 +2058,12 @@ static inline int jedec_match( uint32_t base, uaddr = finfo->uaddr; - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n", + pr_debug("MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n", __func__, cfi->addr_unlock1, cfi->addr_unlock2 ); if ( MTD_UADDR_UNNECESSARY != uaddr && MTD_UADDR_DONT_CARE != uaddr && ( unlock_addrs[uaddr].addr1 / cfi->device_type != cfi->addr_unlock1 || unlock_addrs[uaddr].addr2 / cfi->device_type != cfi->addr_unlock2 ) ) { - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): 0x%.4x 0x%.4x did not match\n", + pr_debug("MTD %s(): 0x%.4x 0x%.4x did not match\n", __func__, unlock_addrs[uaddr].addr1, unlock_addrs[uaddr].addr2); @@ -2083,15 +2079,13 @@ static inline int jedec_match( uint32_t base, * FIXME - write a driver that takes all of the chip info as * module parameters, doesn't probe but forces a load. */ - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): check ID's disappear when not in ID mode\n", + pr_debug("MTD %s(): check ID's disappear when not in ID mode\n", __func__ ); jedec_reset( base, map, cfi ); mfr = jedec_read_mfr( map, base, cfi ); id = jedec_read_id( map, base, cfi ); if ( mfr == cfi->mfr && id == cfi->id ) { - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n" + pr_debug("MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n" "You might need to manually specify JEDEC parameters.\n", __func__, cfi->mfr, cfi->id ); goto match_done; @@ -2104,7 +2098,7 @@ static inline int jedec_match( uint32_t base, * Put the device back in ID mode - only need to do this if we * were truly frobbing a real device. */ - DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): return to ID mode\n", __func__ ); + pr_debug("MTD %s(): return to ID mode\n", __func__ ); if (cfi->addr_unlock1) { cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL); cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL); @@ -2167,13 +2161,11 @@ static int jedec_probe_chip(struct map_info *map, __u32 base, cfi->mfr = jedec_read_mfr(map, base, cfi); cfi->id = jedec_read_id(map, base, cfi); - DEBUG(MTD_DEBUG_LEVEL3, - "Search for id:(%02x %02x) interleave(%d) type(%d)\n", + pr_debug("Search for id:(%02x %02x) interleave(%d) type(%d)\n", cfi->mfr, cfi->id, cfi_interleave(cfi), cfi->device_type); for (i = 0; i < ARRAY_SIZE(jedec_table); i++) { if ( jedec_match( base, map, cfi, &jedec_table[i] ) ) { - DEBUG( MTD_DEBUG_LEVEL3, - "MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n", + pr_debug("MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n", __func__, cfi->mfr, cfi->id, cfi->addr_unlock1, cfi->addr_unlock2 ); if (!cfi_jedec_setup(map, cfi, i)) diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index ed15447c392e..8c9703309496 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -82,8 +82,7 @@ static int _DoC_WaitReady(struct DiskOnChip *doc) void __iomem *docptr = doc->virtadr; unsigned long timeo = jiffies + (HZ * 10); - DEBUG(MTD_DEBUG_LEVEL3, - "_DoC_WaitReady called for out-of-line wait\n"); + pr_debug("_DoC_WaitReady called for out-of-line wait\n"); /* Out-of-line routine to wait for chip response */ while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) { @@ -92,7 +91,7 @@ static int _DoC_WaitReady(struct DiskOnChip *doc) DoC_Delay(doc, 2); if (time_after(jiffies, timeo)) { - DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n"); + pr_debug("_DoC_WaitReady timed out.\n"); return -EIO; } udelay(1); @@ -323,8 +322,7 @@ static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip) /* Reset the chip */ if (DoC_Command(doc, NAND_CMD_RESET, CDSN_CTRL_WP)) { - DEBUG(MTD_DEBUG_LEVEL2, - "DoC_Command (reset) for %d,%d returned true\n", + pr_debug("DoC_Command (reset) for %d,%d returned true\n", floor, chip); return 0; } @@ -332,8 +330,7 @@ static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip) /* Read the NAND chip ID: 1. Send ReadID command */ if (DoC_Command(doc, NAND_CMD_READID, CDSN_CTRL_WP)) { - DEBUG(MTD_DEBUG_LEVEL2, - "DoC_Command (ReadID) for %d,%d returned true\n", + pr_debug("DoC_Command (ReadID) for %d,%d returned true\n", floor, chip); return 0; } diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index c6ea8604a3c3..3d2b459cea92 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -55,15 +55,14 @@ static int _DoC_WaitReady(void __iomem * docptr) { unsigned short c = 0xffff; - DEBUG(MTD_DEBUG_LEVEL3, - "_DoC_WaitReady called for out-of-line wait\n"); + pr_debug("_DoC_WaitReady called for out-of-line wait\n"); /* Out-of-line routine to wait for chip response */ while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B) && --c) ; if (c == 0) - DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n"); + pr_debug("_DoC_WaitReady timed out.\n"); return (c == 0); } diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index fe82fbfa155e..d28c9d99979f 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -61,15 +61,14 @@ static int _DoC_WaitReady(void __iomem * docptr) { unsigned int c = 0xffff; - DEBUG(MTD_DEBUG_LEVEL3, - "_DoC_WaitReady called for out-of-line wait\n"); + pr_debug("_DoC_WaitReady called for out-of-line wait\n"); /* Out-of-line routine to wait for chip response */ while (((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK) && --c) ; if (c == 0) - DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n"); + pr_debug("_DoC_WaitReady timed out.\n"); return (c == 0); } diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 66a3555f07d9..6417bd6b36ff 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -208,7 +208,7 @@ static int wait_till_ready(struct m25p *flash) */ static int erase_chip(struct m25p *flash) { - DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %lldKiB\n", + pr_debug("%s: %s %lldKiB\n", dev_name(&flash->spi->dev), __func__, (long long)(flash->mtd.size >> 10)); @@ -249,7 +249,7 @@ static int m25p_cmdsz(struct m25p *flash) */ static int erase_sector(struct m25p *flash, u32 offset) { - DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB at 0x%08x\n", + pr_debug("%s: %s %dKiB at 0x%08x\n", dev_name(&flash->spi->dev), __func__, flash->mtd.erasesize / 1024, offset); @@ -285,7 +285,7 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr) u32 addr,len; uint32_t rem; - DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%llx, len %lld\n", + pr_debug("%s: %s %s 0x%llx, len %lld\n", dev_name(&flash->spi->dev), __func__, "at", (long long)instr->addr, (long long)instr->len); @@ -347,7 +347,7 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len, struct spi_transfer t[2]; struct spi_message m; - DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n", + pr_debug("%s: %s %s 0x%08x, len %zd\n", dev_name(&flash->spi->dev), __func__, "from", (u32)from, len); @@ -416,7 +416,7 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len, struct spi_transfer t[2]; struct spi_message m; - DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n", + pr_debug("%s: %s %s 0x%08x, len %zd\n", dev_name(&flash->spi->dev), __func__, "to", (u32)to, len); @@ -509,7 +509,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, size_t actual; int cmd_sz, ret; - DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n", + pr_debug("%s: %s %s 0x%08x, len %zd\n", dev_name(&flash->spi->dev), __func__, "to", (u32)to, len); @@ -787,7 +787,7 @@ static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi) */ tmp = spi_write_then_read(spi, &code, 1, id, 5); if (tmp < 0) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n", + pr_debug("%s: error %d reading JEDEC ID\n", dev_name(&spi->dev), tmp); return ERR_PTR(tmp); } @@ -944,8 +944,7 @@ static int __devinit m25p_probe(struct spi_device *spi) dev_info(&spi->dev, "%s (%lld Kbytes)\n", id->name, (long long)flash->mtd.size >> 10); - DEBUG(MTD_DEBUG_LEVEL2, - "mtd .name = %s, .size = 0x%llx (%lldMiB) " + pr_debug("mtd .name = %s, .size = 0x%llx (%lldMiB) " ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n", flash->mtd.name, (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20), @@ -954,8 +953,7 @@ static int __devinit m25p_probe(struct spi_device *spi) if (flash->mtd.numeraseregions) for (i = 0; i < flash->mtd.numeraseregions; i++) - DEBUG(MTD_DEBUG_LEVEL2, - "mtd.eraseregions[%d] = { .offset = 0x%llx, " + pr_debug("mtd.eraseregions[%d] = { .offset = 0x%llx, " ".erasesize = 0x%.8x (%uKiB), " ".numblocks = %d }\n", i, (long long)flash->mtd.eraseregions[i].offset, diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index c86fa573c303..f409aef58ed2 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -133,7 +133,7 @@ static int dataflash_waitready(struct spi_device *spi) for (;;) { status = dataflash_status(spi); if (status < 0) { - DEBUG(MTD_DEBUG_LEVEL1, "%s: status %d?\n", + pr_debug("%s: status %d?\n", dev_name(&spi->dev), status); status = 0; } @@ -160,7 +160,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) uint8_t *command; uint32_t rem; - DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%llx len 0x%llx\n", + pr_debug("%s: erase addr=0x%llx len 0x%llx\n", dev_name(&spi->dev), (long long)instr->addr, (long long)instr->len); @@ -198,7 +198,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) command[2] = (uint8_t)(pageaddr >> 8); command[3] = 0; - DEBUG(MTD_DEBUG_LEVEL3, "ERASE %s: (%x) %x %x %x [%i]\n", + pr_debug("ERASE %s: (%x) %x %x %x [%i]\n", do_block ? "block" : "page", command[0], command[1], command[2], command[3], pageaddr); @@ -249,7 +249,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, uint8_t *command; int status; - DEBUG(MTD_DEBUG_LEVEL2, "%s: read 0x%x..0x%x\n", + pr_debug("%s: read 0x%x..0x%x\n", dev_name(&priv->spi->dev), (unsigned)from, (unsigned)(from + len)); *retlen = 0; @@ -266,7 +266,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, command = priv->command; - DEBUG(MTD_DEBUG_LEVEL3, "READ: (%x) %x %x %x\n", + pr_debug("READ: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); spi_message_init(&msg); @@ -298,7 +298,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, *retlen = msg.actual_length - 8; status = 0; } else - DEBUG(MTD_DEBUG_LEVEL1, "%s: read %x..%x --> %d\n", + pr_debug("%s: read %x..%x --> %d\n", dev_name(&priv->spi->dev), (unsigned)from, (unsigned)(from + len), status); @@ -325,7 +325,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, int status = -EINVAL; uint8_t *command; - DEBUG(MTD_DEBUG_LEVEL2, "%s: write 0x%x..0x%x\n", + pr_debug("%s: write 0x%x..0x%x\n", dev_name(&spi->dev), (unsigned)to, (unsigned)(to + len)); *retlen = 0; @@ -351,7 +351,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, mutex_lock(&priv->lock); while (remaining > 0) { - DEBUG(MTD_DEBUG_LEVEL3, "write @ %i:%i len=%i\n", + pr_debug("write @ %i:%i len=%i\n", pageaddr, offset, writelen); /* REVISIT: @@ -379,12 +379,12 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, command[2] = (addr & 0x0000FF00) >> 8; command[3] = 0; - DEBUG(MTD_DEBUG_LEVEL3, "TRANSFER: (%x) %x %x %x\n", + pr_debug("TRANSFER: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); status = spi_sync(spi, &msg); if (status < 0) - DEBUG(MTD_DEBUG_LEVEL1, "%s: xfer %u -> %d \n", + pr_debug("%s: xfer %u -> %d \n", dev_name(&spi->dev), addr, status); (void) dataflash_waitready(priv->spi); @@ -397,7 +397,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, command[2] = (addr & 0x0000FF00) >> 8; command[3] = (addr & 0x000000FF); - DEBUG(MTD_DEBUG_LEVEL3, "PROGRAM: (%x) %x %x %x\n", + pr_debug("PROGRAM: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); x[1].tx_buf = writebuf; @@ -406,7 +406,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, status = spi_sync(spi, &msg); spi_transfer_del(x + 1); if (status < 0) - DEBUG(MTD_DEBUG_LEVEL1, "%s: pgm %u/%u -> %d \n", + pr_debug("%s: pgm %u/%u -> %d \n", dev_name(&spi->dev), addr, writelen, status); (void) dataflash_waitready(priv->spi); @@ -421,12 +421,12 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, command[2] = (addr & 0x0000FF00) >> 8; command[3] = 0; - DEBUG(MTD_DEBUG_LEVEL3, "COMPARE: (%x) %x %x %x\n", + pr_debug("COMPARE: (%x) %x %x %x\n", command[0], command[1], command[2], command[3]); status = spi_sync(spi, &msg); if (status < 0) - DEBUG(MTD_DEBUG_LEVEL1, "%s: compare %u -> %d \n", + pr_debug("%s: compare %u -> %d \n", dev_name(&spi->dev), addr, status); status = dataflash_waitready(priv->spi); @@ -780,7 +780,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi) */ tmp = spi_write_then_read(spi, &code, 1, id, 3); if (tmp < 0) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n", + pr_debug("%s: error %d reading JEDEC ID\n", dev_name(&spi->dev), tmp); return ERR_PTR(tmp); } @@ -797,7 +797,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi) tmp < ARRAY_SIZE(dataflash_data); tmp++, info++) { if (info->jedec_id == jedec) { - DEBUG(MTD_DEBUG_LEVEL1, "%s: OTP, sector protect%s\n", + pr_debug("%s: OTP, sector protect%s\n", dev_name(&spi->dev), (info->flags & SUP_POW2PS) ? ", binary pagesize" : "" @@ -805,8 +805,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi) if (info->flags & SUP_POW2PS) { status = dataflash_status(spi); if (status < 0) { - DEBUG(MTD_DEBUG_LEVEL1, - "%s: status error %d\n", + pr_debug("%s: status error %d\n", dev_name(&spi->dev), status); return ERR_PTR(status); } @@ -871,7 +870,7 @@ static int __devinit dataflash_probe(struct spi_device *spi) */ status = dataflash_status(spi); if (status <= 0 || status == 0xff) { - DEBUG(MTD_DEBUG_LEVEL1, "%s: status error %d\n", + pr_debug("%s: status error %d\n", dev_name(&spi->dev), status); if (status == 0 || status == 0xff) status = -ENODEV; @@ -907,13 +906,13 @@ static int __devinit dataflash_probe(struct spi_device *spi) break; /* obsolete AT45DB1282 not (yet?) supported */ default: - DEBUG(MTD_DEBUG_LEVEL1, "%s: unsupported device (%x)\n", + pr_debug("%s: unsupported device (%x)\n", dev_name(&spi->dev), status & 0x3c); status = -ENODEV; } if (status < 0) - DEBUG(MTD_DEBUG_LEVEL1, "%s: add_dataflash --> %d\n", + pr_debug("%s: add_dataflash --> %d\n", dev_name(&spi->dev), status); return status; @@ -924,7 +923,7 @@ static int __devexit dataflash_remove(struct spi_device *spi) struct dataflash *flash = dev_get_drvdata(&spi->dev); int status; - DEBUG(MTD_DEBUG_LEVEL1, "%s: remove\n", dev_name(&spi->dev)); + pr_debug("%s: remove\n", dev_name(&spi->dev)); status = mtd_device_unregister(&flash->mtd); if (status == 0) { diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c index 44a8b408ed7b..d38ef3bffe8d 100644 --- a/drivers/mtd/devices/sst25l.c +++ b/drivers/mtd/devices/sst25l.c @@ -410,8 +410,7 @@ static int __devinit sst25l_probe(struct spi_device *spi) dev_info(&spi->dev, "%s (%lld KiB)\n", flash_info->name, (long long)flash->mtd.size >> 10); - DEBUG(MTD_DEBUG_LEVEL2, - "mtd .name = %s, .size = 0x%llx (%lldMiB) " + pr_debug("mtd .name = %s, .size = 0x%llx (%lldMiB) " ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n", flash->mtd.name, (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20), diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c index 037b399df3f1..95d77680ad15 100644 --- a/drivers/mtd/ftl.c +++ b/drivers/mtd/ftl.c @@ -339,7 +339,7 @@ static int erase_xfer(partition_t *part, struct erase_info *erase; xfer = &part->XferInfo[xfernum]; - DEBUG(1, "ftl_cs: erasing xfer unit at 0x%x\n", xfer->Offset); + pr_debug("ftl_cs: erasing xfer unit at 0x%x\n", xfer->Offset); xfer->state = XFER_ERASING; /* Is there a free erase slot? Always in MTD. */ @@ -415,7 +415,7 @@ static int prepare_xfer(partition_t *part, int i) xfer = &part->XferInfo[i]; xfer->state = XFER_FAILED; - DEBUG(1, "ftl_cs: preparing xfer unit at 0x%x\n", xfer->Offset); + pr_debug("ftl_cs: preparing xfer unit at 0x%x\n", xfer->Offset); /* Write the transfer unit header */ header = part->header; @@ -476,7 +476,7 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit, eun = &part->EUNInfo[srcunit]; xfer = &part->XferInfo[xferunit]; - DEBUG(2, "ftl_cs: copying block 0x%x to 0x%x\n", + pr_debug("ftl_cs: copying block 0x%x to 0x%x\n", eun->Offset, xfer->Offset); @@ -609,8 +609,8 @@ static int reclaim_block(partition_t *part) uint32_t best; int queued, ret; - DEBUG(0, "ftl_cs: reclaiming space...\n"); - DEBUG(3, "NumTransferUnits == %x\n", part->header.NumTransferUnits); + pr_debug("ftl_cs: reclaiming space...\n"); + pr_debug("NumTransferUnits == %x\n", part->header.NumTransferUnits); /* Pick the least erased transfer unit */ best = 0xffffffff; xfer = 0xffff; do { @@ -618,22 +618,22 @@ static int reclaim_block(partition_t *part) for (i = 0; i < part->header.NumTransferUnits; i++) { int n=0; if (part->XferInfo[i].state == XFER_UNKNOWN) { - DEBUG(3,"XferInfo[%d].state == XFER_UNKNOWN\n",i); + pr_debug("XferInfo[%d].state == XFER_UNKNOWN\n",i); n=1; erase_xfer(part, i); } if (part->XferInfo[i].state == XFER_ERASING) { - DEBUG(3,"XferInfo[%d].state == XFER_ERASING\n",i); + pr_debug("XferInfo[%d].state == XFER_ERASING\n",i); n=1; queued = 1; } else if (part->XferInfo[i].state == XFER_ERASED) { - DEBUG(3,"XferInfo[%d].state == XFER_ERASED\n",i); + pr_debug("XferInfo[%d].state == XFER_ERASED\n",i); n=1; prepare_xfer(part, i); } if (part->XferInfo[i].state == XFER_PREPARED) { - DEBUG(3,"XferInfo[%d].state == XFER_PREPARED\n",i); + pr_debug("XferInfo[%d].state == XFER_PREPARED\n",i); n=1; if (part->XferInfo[i].EraseCount <= best) { best = part->XferInfo[i].EraseCount; @@ -641,12 +641,12 @@ static int reclaim_block(partition_t *part) } } if (!n) - DEBUG(3,"XferInfo[%d].state == %x\n",i, part->XferInfo[i].state); + pr_debug("XferInfo[%d].state == %x\n",i, part->XferInfo[i].state); } if (xfer == 0xffff) { if (queued) { - DEBUG(1, "ftl_cs: waiting for transfer " + pr_debug("ftl_cs: waiting for transfer " "unit to be prepared...\n"); if (part->mbd.mtd->sync) part->mbd.mtd->sync(part->mbd.mtd); @@ -656,7 +656,7 @@ static int reclaim_block(partition_t *part) printk(KERN_NOTICE "ftl_cs: reclaim failed: no " "suitable transfer units!\n"); else - DEBUG(1, "ftl_cs: reclaim failed: no " + pr_debug("ftl_cs: reclaim failed: no " "suitable transfer units!\n"); return -EIO; @@ -666,7 +666,7 @@ static int reclaim_block(partition_t *part) eun = 0; if ((jiffies % shuffle_freq) == 0) { - DEBUG(1, "ftl_cs: recycling freshest block...\n"); + pr_debug("ftl_cs: recycling freshest block...\n"); best = 0xffffffff; for (i = 0; i < part->DataUnits; i++) if (part->EUNInfo[i].EraseCount <= best) { @@ -686,7 +686,7 @@ static int reclaim_block(partition_t *part) printk(KERN_NOTICE "ftl_cs: reclaim failed: " "no free blocks!\n"); else - DEBUG(1,"ftl_cs: reclaim failed: " + pr_debug("ftl_cs: reclaim failed: " "no free blocks!\n"); return -EIO; @@ -771,7 +771,7 @@ static uint32_t find_free(partition_t *part) printk(KERN_NOTICE "ftl_cs: bad free list!\n"); return 0; } - DEBUG(2, "ftl_cs: found free block at %d in %d\n", blk, eun); + pr_debug("ftl_cs: found free block at %d in %d\n", blk, eun); return blk; } /* find_free */ @@ -791,7 +791,7 @@ static int ftl_read(partition_t *part, caddr_t buffer, int ret; size_t offset, retlen; - DEBUG(2, "ftl_cs: ftl_read(0x%p, 0x%lx, %ld)\n", + pr_debug("ftl_cs: ftl_read(0x%p, 0x%lx, %ld)\n", part, sector, nblocks); if (!(part->state & FTL_FORMATTED)) { printk(KERN_NOTICE "ftl_cs: bad partition\n"); @@ -840,7 +840,7 @@ static int set_bam_entry(partition_t *part, uint32_t log_addr, int ret; size_t retlen, offset; - DEBUG(2, "ftl_cs: set_bam_entry(0x%p, 0x%x, 0x%x)\n", + pr_debug("ftl_cs: set_bam_entry(0x%p, 0x%x, 0x%x)\n", part, log_addr, virt_addr); bsize = 1 << part->header.EraseUnitSize; eun = log_addr / bsize; @@ -905,7 +905,7 @@ static int ftl_write(partition_t *part, caddr_t buffer, int ret; size_t retlen, offset; - DEBUG(2, "ftl_cs: ftl_write(0x%p, %ld, %ld)\n", + pr_debug("ftl_cs: ftl_write(0x%p, %ld, %ld)\n", part, sector, nblocks); if (!(part->state & FTL_FORMATTED)) { printk(KERN_NOTICE "ftl_cs: bad partition\n"); @@ -1011,7 +1011,7 @@ static int ftl_discardsect(struct mtd_blktrans_dev *dev, partition_t *part = (void *)dev; uint32_t bsize = 1 << part->header.EraseUnitSize; - DEBUG(1, "FTL erase sector %ld for %d sectors\n", + pr_debug("FTL erase sector %ld for %d sectors\n", sector, nr_sects); while (nr_sects) { diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index c9a31e6faab2..232e11b1526c 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -63,7 +63,7 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) return; } - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: add_mtd for %s\n", mtd->name); + pr_debug("INFTL: add_mtd for %s\n", mtd->name); inftl = kzalloc(sizeof(*inftl), GFP_KERNEL); @@ -131,7 +131,7 @@ static void inftl_remove_dev(struct mtd_blktrans_dev *dev) { struct INFTLrecord *inftl = (void *)dev; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: remove_dev (i=%d)\n", dev->devnum); + pr_debug("INFTL: remove_dev (i=%d)\n", dev->devnum); del_mtd_blktrans_dev(dev); @@ -213,7 +213,7 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate) u16 pot = inftl->LastFreeEUN; int silly = inftl->nb_blocks; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findfreeblock(inftl=%p," + pr_debug("INFTL: INFTL_findfreeblock(inftl=%p," "desperate=%d)\n", inftl, desperate); /* @@ -221,7 +221,7 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate) * blocks completely. */ if (!desperate && inftl->numfreeEUNs < 2) { - DEBUG(MTD_DEBUG_LEVEL1, "INFTL: there are too few free " + pr_debug("INFTL: there are too few free " "EUNs (%d)\n", inftl->numfreeEUNs); return BLOCK_NIL; } @@ -257,7 +257,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned struct inftl_oob oob; size_t retlen; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d," + pr_debug("INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d," "pending=%d)\n", inftl, thisVUC, pendingblock); memset(BlockMap, 0xff, sizeof(BlockMap)); @@ -321,7 +321,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned * Chain, and the Erase Unit into which we are supposed to be copying. * Go for it. */ - DEBUG(MTD_DEBUG_LEVEL1, "INFTL: folding chain %d into unit %d\n", + pr_debug("INFTL: folding chain %d into unit %d\n", thisVUC, targetEUN); for (block = 0; block < inftl->EraseSize/SECTORSIZE ; block++) { @@ -353,7 +353,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned (block * SECTORSIZE), SECTORSIZE, &retlen, movebuf); if (ret != -EIO) - DEBUG(MTD_DEBUG_LEVEL1, "INFTL: error went " + pr_debug("INFTL: error went " "away on retry?\n"); } memset(&oob, 0xff, sizeof(struct inftl_oob)); @@ -370,7 +370,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned * is important, by doing oldest first if we crash/reboot then it * it is relatively simple to clean up the mess). */ - DEBUG(MTD_DEBUG_LEVEL1, "INFTL: want to erase virtual chain %d\n", + pr_debug("INFTL: want to erase virtual chain %d\n", thisVUC); for (;;) { @@ -419,7 +419,7 @@ static u16 INFTL_makefreeblock(struct INFTLrecord *inftl, unsigned pendingblock) u16 ChainLength = 0, thislen; u16 chain, EUN; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_makefreeblock(inftl=%p," + pr_debug("INFTL: INFTL_makefreeblock(inftl=%p," "pending=%d)\n", inftl, pendingblock); for (chain = 0; chain < inftl->nb_blocks; chain++) { @@ -482,7 +482,7 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block) size_t retlen; int silly, silly2 = 3; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findwriteunit(inftl=%p," + pr_debug("INFTL: INFTL_findwriteunit(inftl=%p," "block=%d)\n", inftl, block); do { @@ -499,7 +499,7 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block) blockofs, 8, &retlen, (char *)&bci); status = bci.Status | bci.Status1; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: status of block %d in " + pr_debug("INFTL: status of block %d in " "EUN %d is %x\n", block , writeEUN, status); switch(status) { @@ -553,7 +553,7 @@ hitused: * Hopefully we free something, lets try again. * This time we are desperate... */ - DEBUG(MTD_DEBUG_LEVEL1, "INFTL: using desperate==1 " + pr_debug("INFTL: using desperate==1 " "to find free EUN to accommodate write to " "VUC %d\n", thisVUC); writeEUN = INFTL_findfreeblock(inftl, 1); @@ -645,7 +645,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC) struct inftl_bci bci; size_t retlen; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_trydeletechain(inftl=%p," + pr_debug("INFTL: INFTL_trydeletechain(inftl=%p," "thisVUC=%d)\n", inftl, thisVUC); memset(BlockUsed, 0, sizeof(BlockUsed)); @@ -709,7 +709,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC) * For each block in the chain free it and make it available * for future use. Erase from the oldest unit first. */ - DEBUG(MTD_DEBUG_LEVEL1, "INFTL: deleting empty VUC %d\n", thisVUC); + pr_debug("INFTL: deleting empty VUC %d\n", thisVUC); for (;;) { u16 *prevEUN = &inftl->VUtable[thisVUC]; @@ -717,7 +717,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC) /* If the chain is all gone already, we're done */ if (thisEUN == BLOCK_NIL) { - DEBUG(MTD_DEBUG_LEVEL2, "INFTL: Empty VUC %d for deletion was already absent\n", thisEUN); + pr_debug("INFTL: Empty VUC %d for deletion was already absent\n", thisEUN); return; } @@ -729,7 +729,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC) thisEUN = *prevEUN; } - DEBUG(MTD_DEBUG_LEVEL3, "Deleting EUN %d from VUC %d\n", + pr_debug("Deleting EUN %d from VUC %d\n", thisEUN, thisVUC); if (INFTL_formatblock(inftl, thisEUN) < 0) { @@ -765,7 +765,7 @@ static int INFTL_deleteblock(struct INFTLrecord *inftl, unsigned block) size_t retlen; struct inftl_bci bci; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_deleteblock(inftl=%p," + pr_debug("INFTL: INFTL_deleteblock(inftl=%p," "block=%d)\n", inftl, block); while (thisEUN < inftl->nb_blocks) { @@ -824,7 +824,7 @@ static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block, struct inftl_oob oob; char *p, *pend; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_writeblock(inftl=%p,block=%ld," + pr_debug("INFTL: inftl_writeblock(inftl=%p,block=%ld," "buffer=%p)\n", inftl, block, buffer); /* Is block all zero? */ @@ -874,7 +874,7 @@ static int inftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block, struct inftl_bci bci; size_t retlen; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_readblock(inftl=%p,block=%ld," + pr_debug("INFTL: inftl_readblock(inftl=%p,block=%ld," "buffer=%p)\n", inftl, block, buffer); while (thisEUN < inftl->nb_blocks) { diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index 104052e774b0..d969c2d5d62b 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -53,7 +53,7 @@ static int find_boot_record(struct INFTLrecord *inftl) struct INFTLPartition *ip; size_t retlen; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=%p)\n", inftl); + pr_debug("INFTL: find_boot_record(inftl=%p)\n", inftl); /* * Assume logical EraseSize == physical erasesize for starting the @@ -385,7 +385,7 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block) struct mtd_info *mtd = inftl->mbd.mtd; int physblock; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_formatblock(inftl=%p," + pr_debug("INFTL: INFTL_formatblock(inftl=%p," "block=%d)\n", inftl, block); memset(instr, 0, sizeof(struct erase_info)); @@ -555,7 +555,7 @@ int INFTL_mount(struct INFTLrecord *s) int i; u8 *ANACtable, ANAC; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_mount(inftl=%p)\n", s); + pr_debug("INFTL: INFTL_mount(inftl=%p)\n", s); /* Search for INFTL MediaHeader and Spare INFTL Media Header */ if (find_boot_record(s) < 0) { @@ -585,7 +585,7 @@ int INFTL_mount(struct INFTLrecord *s) * NOTEXPLORED state. Then at the end we will try to format it and * mark it as free. */ - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 1, explore each unit\n"); + pr_debug("INFTL: pass 1, explore each unit\n"); for (first_block = s->firstEUN; first_block <= s->lastEUN; first_block++) { if (s->PUtable[first_block] != BLOCK_NOTEXPLORED) continue; @@ -727,7 +727,7 @@ int INFTL_mount(struct INFTLrecord *s) * possible because we don't update the previous pointers when * we fold chains. No big deal, just fix them up in PUtable. */ - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 2, validate virtual chains\n"); + pr_debug("INFTL: pass 2, validate virtual chains\n"); for (logical_block = 0; logical_block < s->numvunits; logical_block++) { block = s->VUtable[logical_block]; last_block = BLOCK_NIL; @@ -785,7 +785,7 @@ int INFTL_mount(struct INFTLrecord *s) s->numfreeEUNs = 0; s->LastFreeEUN = BLOCK_NIL; - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 3, format unused blocks\n"); + pr_debug("INFTL: pass 3, format unused blocks\n"); for (block = s->firstEUN; block <= s->lastEUN; block++) { if (s->PUtable[block] == BLOCK_NOTEXPLORED) { printk("INFTL: unreferenced block %d, formatting it\n", diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index 1976b6c0508d..7c1dc908a174 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -119,7 +119,7 @@ static int write_cached_data (struct mtdblk_dev *mtdblk) if (mtdblk->cache_state != STATE_DIRTY) return 0; - DEBUG(MTD_DEBUG_LEVEL2, "mtdblock: writing cached data for \"%s\" " + pr_debug("mtdblock: writing cached data for \"%s\" " "at 0x%lx, size 0x%x\n", mtd->name, mtdblk->cache_offset, mtdblk->cache_size); @@ -148,7 +148,7 @@ static int do_cached_write (struct mtdblk_dev *mtdblk, unsigned long pos, size_t retlen; int ret; - DEBUG(MTD_DEBUG_LEVEL2, "mtdblock: write on \"%s\" at 0x%lx, size 0x%x\n", + pr_debug("mtdblock: write on \"%s\" at 0x%lx, size 0x%x\n", mtd->name, pos, len); if (!sect_size) @@ -218,7 +218,7 @@ static int do_cached_read (struct mtdblk_dev *mtdblk, unsigned long pos, size_t retlen; int ret; - DEBUG(MTD_DEBUG_LEVEL2, "mtdblock: read on \"%s\" at 0x%lx, size 0x%x\n", + pr_debug("mtdblock: read on \"%s\" at 0x%lx, size 0x%x\n", mtd->name, pos, len); if (!sect_size) @@ -283,7 +283,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd) { struct mtdblk_dev *mtdblk = container_of(mbd, struct mtdblk_dev, mbd); - DEBUG(MTD_DEBUG_LEVEL1,"mtdblock_open\n"); + pr_debug("mtdblock_open\n"); mutex_lock(&mtdblks_lock); if (mtdblk->count) { @@ -303,7 +303,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd) mutex_unlock(&mtdblks_lock); - DEBUG(MTD_DEBUG_LEVEL1, "ok\n"); + pr_debug("ok\n"); return 0; } @@ -312,7 +312,7 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd) { struct mtdblk_dev *mtdblk = container_of(mbd, struct mtdblk_dev, mbd); - DEBUG(MTD_DEBUG_LEVEL1, "mtdblock_release\n"); + pr_debug("mtdblock_release\n"); mutex_lock(&mtdblks_lock); @@ -329,7 +329,7 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd) mutex_unlock(&mtdblks_lock); - DEBUG(MTD_DEBUG_LEVEL1, "ok\n"); + pr_debug("ok\n"); return 0; } diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index e197192331f9..22526e98b85b 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -86,7 +86,7 @@ static int mtd_open(struct inode *inode, struct file *file) struct mtd_file_info *mfi; struct inode *mtd_ino; - DEBUG(MTD_DEBUG_LEVEL0, "MTD_open\n"); + pr_debug("MTD_open\n"); /* You can't open the RO devices RW */ if ((file->f_mode & FMODE_WRITE) && (minor & 1)) @@ -151,7 +151,7 @@ static int mtd_close(struct inode *inode, struct file *file) struct mtd_file_info *mfi = file->private_data; struct mtd_info *mtd = mfi->mtd; - DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n"); + pr_debug("MTD_close\n"); /* Only sync if opened RW */ if ((file->f_mode & FMODE_WRITE) && mtd->sync) @@ -195,7 +195,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t size_t size = count; char *kbuf; - DEBUG(MTD_DEBUG_LEVEL0,"MTD_read\n"); + pr_debug("MTD_read\n"); if (*ppos + count > mtd->size) count = mtd->size - *ppos; @@ -278,7 +278,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count int ret=0; int len; - DEBUG(MTD_DEBUG_LEVEL0,"MTD_write\n"); + pr_debug("MTD_write\n"); if (*ppos == mtd->size) return -ENOSPC; @@ -570,7 +570,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) u_long size; struct mtd_info_user info; - DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n"); + pr_debug("MTD_ioctl\n"); size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; if (cmd & IOC_IN) { diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index f9cc2d2cb5cb..887aed02aa2e 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -362,7 +362,7 @@ int add_mtd_device(struct mtd_info *mtd) MTD_DEVT(i) + 1, NULL, "mtd%dro", i); - DEBUG(0, "mtd: Giving out device %d to %s\n", i, mtd->name); + pr_debug("mtd: Giving out device %d to %s\n", i, mtd->name); /* No need to get a refcount on the module containing the notifier, since we hold the mtd_table_mutex */ list_for_each_entry(not, &mtd_notifiers, list) diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c index 16b02a1fc100..80fe5dcac111 100644 --- a/drivers/mtd/mtdsuper.c +++ b/drivers/mtd/mtdsuper.c @@ -26,12 +26,12 @@ static int get_sb_mtd_compare(struct super_block *sb, void *_mtd) struct mtd_info *mtd = _mtd; if (sb->s_mtd == mtd) { - DEBUG(2, "MTDSB: Match on device %d (\"%s\")\n", + pr_debug("MTDSB: Match on device %d (\"%s\")\n", mtd->index, mtd->name); return 1; } - DEBUG(2, "MTDSB: No match, device %d (\"%s\"), device %d (\"%s\")\n", + pr_debug("MTDSB: No match, device %d (\"%s\"), device %d (\"%s\")\n", sb->s_mtd->index, sb->s_mtd->name, mtd->index, mtd->name); return 0; } @@ -70,7 +70,7 @@ static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags, goto already_mounted; /* fresh new superblock */ - DEBUG(1, "MTDSB: New superblock for device %d (\"%s\")\n", + pr_debug("MTDSB: New superblock for device %d (\"%s\")\n", mtd->index, mtd->name); sb->s_flags = flags; @@ -87,7 +87,7 @@ static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags, /* new mountpoint for an already mounted superblock */ already_mounted: - DEBUG(1, "MTDSB: Device %d (\"%s\") is already mounted\n", + pr_debug("MTDSB: Device %d (\"%s\") is already mounted\n", mtd->index, mtd->name); put_mtd_device(mtd); return dget(sb->s_root); @@ -108,7 +108,7 @@ static struct dentry *mount_mtd_nr(struct file_system_type *fs_type, int flags, mtd = get_mtd_device(NULL, mtdnr); if (IS_ERR(mtd)) { - DEBUG(0, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr); + pr_debug("MTDSB: Device #%u doesn't appear to exist\n", mtdnr); return ERR_CAST(mtd); } @@ -131,7 +131,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags, if (!dev_name) return ERR_PTR(-EINVAL); - DEBUG(2, "MTDSB: dev_name \"%s\"\n", dev_name); + pr_debug("MTDSB: dev_name \"%s\"\n", dev_name); /* the preferred way of mounting in future; especially when * CONFIG_BLOCK=n - we specify the underlying MTD device by number or @@ -142,7 +142,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags, struct mtd_info *mtd; /* mount by MTD device name */ - DEBUG(1, "MTDSB: mtd:%%s, name \"%s\"\n", + pr_debug("MTDSB: mtd:%%s, name \"%s\"\n", dev_name + 4); mtd = get_mtd_device_nm(dev_name + 4); @@ -163,7 +163,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags, mtdnr = simple_strtoul(dev_name + 3, &endptr, 0); if (!*endptr) { /* It was a valid number */ - DEBUG(1, "MTDSB: mtd%%d, mtdnr %d\n", + pr_debug("MTDSB: mtd%%d, mtdnr %d\n", mtdnr); return mount_mtd_nr(fs_type, flags, dev_name, data, @@ -179,10 +179,10 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags, bdev = lookup_bdev(dev_name); if (IS_ERR(bdev)) { ret = PTR_ERR(bdev); - DEBUG(1, "MTDSB: lookup_bdev() returned %d\n", ret); + pr_debug("MTDSB: lookup_bdev() returned %d\n", ret); return ERR_PTR(ret); } - DEBUG(1, "MTDSB: lookup_bdev() returned 0\n"); + pr_debug("MTDSB: lookup_bdev() returned 0\n"); ret = -EINVAL; diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 4c2bb4a4bf0b..2fbfb71c237b 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -349,7 +349,7 @@ static void wait_op_done(struct mxc_nand_host *host, int useirq) udelay(1); } if (max_retries < 0) - DEBUG(MTD_DEBUG_LEVEL0, "%s: INT not set\n", + pr_debug("%s: INT not set\n", __func__); } } @@ -370,7 +370,7 @@ static void send_cmd_v3(struct mxc_nand_host *host, uint16_t cmd, int useirq) * waits for completion. */ static void send_cmd_v1_v2(struct mxc_nand_host *host, uint16_t cmd, int useirq) { - DEBUG(MTD_DEBUG_LEVEL3, "send_cmd(host, 0x%x, %d)\n", cmd, useirq); + pr_debug("send_cmd(host, 0x%x, %d)\n", cmd, useirq); writew(cmd, NFC_V1_V2_FLASH_CMD); writew(NFC_CMD, NFC_V1_V2_CONFIG2); @@ -386,7 +386,7 @@ static void send_cmd_v1_v2(struct mxc_nand_host *host, uint16_t cmd, int useirq) udelay(1); } if (max_retries < 0) - DEBUG(MTD_DEBUG_LEVEL0, "%s: RESET failed\n", + pr_debug("%s: RESET failed\n", __func__); } else { /* Wait for operation to complete */ @@ -410,7 +410,7 @@ static void send_addr_v3(struct mxc_nand_host *host, uint16_t addr, int islast) * a NAND command. */ static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islast) { - DEBUG(MTD_DEBUG_LEVEL3, "send_addr(host, 0x%x %d)\n", addr, islast); + pr_debug("send_addr(host, 0x%x %d)\n", addr, islast); writew(addr, NFC_V1_V2_FLASH_ADDR); writew(NFC_ADDR, NFC_V1_V2_CONFIG2); @@ -560,8 +560,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat, uint16_t ecc_status = readw(NFC_V1_V2_ECC_STATUS_RESULT); if (((ecc_status & 0x3) == 2) || ((ecc_status >> 2) == 2)) { - DEBUG(MTD_DEBUG_LEVEL0, - "MXC_NAND: HWECC uncorrectable 2-bit ECC error\n"); + pr_debug("MXC_NAND: HWECC uncorrectable 2-bit ECC error\n"); return -1; } @@ -931,8 +930,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, struct nand_chip *nand_chip = mtd->priv; struct mxc_nand_host *host = nand_chip->priv; - DEBUG(MTD_DEBUG_LEVEL3, - "mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n", + pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n", command, column, page_addr); /* Reset command state information */ diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 6a5271256245..7f2691f94322 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -113,21 +113,19 @@ static int check_offs_len(struct mtd_info *mtd, /* Start address must align on block boundary */ if (ofs & ((1 << chip->phys_erase_shift) - 1)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Unaligned address\n", __func__); + pr_debug("%s: unaligned address\n", __func__); ret = -EINVAL; } /* Length must align on block boundary */ if (len & ((1 << chip->phys_erase_shift) - 1)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Length not block aligned\n", - __func__); + pr_debug("%s: length not block aligned\n", __func__); ret = -EINVAL; } /* Do not allow past end of device */ if (ofs + len > mtd->size) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Past end of device\n", - __func__); + pr_debug("%s: past end of device\n", __func__); ret = -EINVAL; } @@ -913,7 +911,7 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs, status = chip->waitfunc(mtd, chip); /* See if device thinks it succeeded */ if (status & 0x01) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Error status = 0x%08x\n", + pr_debug("%s: error status = 0x%08x\n", __func__, status); ret = -EIO; } @@ -935,7 +933,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) int chipnr; struct nand_chip *chip = mtd->priv; - DEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n", + pr_debug("%s: start = 0x%012llx, len = %llu\n", __func__, (unsigned long long)ofs, len); if (check_offs_len(mtd, ofs, len)) @@ -954,7 +952,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len) /* Check, if it is write protected */ if (nand_check_wp(mtd)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n", + pr_debug("%s: device is write protected!\n", __func__); ret = -EIO; goto out; @@ -988,7 +986,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) int chipnr, status, page; struct nand_chip *chip = mtd->priv; - DEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n", + pr_debug("%s: start = 0x%012llx, len = %llu\n", __func__, (unsigned long long)ofs, len); if (check_offs_len(mtd, ofs, len)) @@ -1003,7 +1001,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) /* Check, if it is write protected */ if (nand_check_wp(mtd)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n", + pr_debug("%s: device is write protected!\n", __func__); status = MTD_ERASE_FAILED; ret = -EIO; @@ -1018,7 +1016,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len) status = chip->waitfunc(mtd, chip); /* See if device thinks it succeeded */ if (status & 0x01) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Error status = 0x%08x\n", + pr_debug("%s: error status = 0x%08x\n", __func__, status); ret = -EIO; goto out; @@ -1756,7 +1754,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, int len; uint8_t *buf = ops->oobbuf; - DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08Lx, len = %i\n", + pr_debug("%s: from = 0x%08Lx, len = %i\n", __func__, (unsigned long long)from, readlen); stats = mtd->ecc_stats; @@ -1767,8 +1765,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, len = mtd->oobsize; if (unlikely(ops->ooboffs >= len)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to start read " - "outside oob\n", __func__); + pr_debug("%s: attempt to start read outside oob\n", + __func__); return -EINVAL; } @@ -1776,8 +1774,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, if (unlikely(from >= mtd->size || ops->ooboffs + readlen > ((mtd->size >> chip->page_shift) - (from >> chip->page_shift)) * len)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt read beyond end " - "of device\n", __func__); + pr_debug("%s: attempt to read beyond end of device\n", + __func__); return -EINVAL; } @@ -1856,8 +1854,8 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from, /* Do not allow reads past end of device */ if (ops->datbuf && (from + ops->len) > mtd->size) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt read " - "beyond end of device\n", __func__); + pr_debug("%s: attempt to read beyond end of device\n", + __func__); return -EINVAL; } @@ -2352,7 +2350,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, int chipnr, page, status, len; struct nand_chip *chip = mtd->priv; - DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n", + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, (int)ops->ooblen); if (ops->mode == MTD_OOB_AUTO) @@ -2362,14 +2360,14 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, /* Do not allow write past end of page */ if ((ops->ooboffs + ops->ooblen) > len) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to write " - "past end of page\n", __func__); + pr_debug("%s: attempt to write past end of page\n", + __func__); return -EINVAL; } if (unlikely(ops->ooboffs >= len)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to start " - "write outside oob\n", __func__); + pr_debug("%s: attempt to start write outside oob\n", + __func__); return -EINVAL; } @@ -2378,8 +2376,8 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, ops->ooboffs + ops->ooblen > ((mtd->size >> chip->page_shift) - (to >> chip->page_shift)) * len)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt write beyond " - "end of device\n", __func__); + pr_debug("%s: attempt to write beyond end of device\n", + __func__); return -EINVAL; } @@ -2432,8 +2430,8 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to, /* Do not allow writes past end of device */ if (ops->datbuf && (to + ops->len) > mtd->size) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt write beyond " - "end of device\n", __func__); + pr_debug("%s: attempt to write beyond end of device\n", + __func__); return -EINVAL; } @@ -2522,9 +2520,9 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, unsigned int bbt_masked_page = 0xffffffff; loff_t len; - DEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n", - __func__, (unsigned long long)instr->addr, - (unsigned long long)instr->len); + pr_debug("%s: start = 0x%012llx, len = %llu\n", + __func__, (unsigned long long)instr->addr, + (unsigned long long)instr->len); if (check_offs_len(mtd, instr->addr, instr->len)) return -EINVAL; @@ -2546,8 +2544,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* Check, if it is write protected */ if (nand_check_wp(mtd)) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n", - __func__); + pr_debug("%s: device is write protected!\n", + __func__); instr->state = MTD_ERASE_FAILED; goto erase_exit; } @@ -2598,8 +2596,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, /* See if block erase succeeded */ if (status & NAND_STATUS_FAIL) { - DEBUG(MTD_DEBUG_LEVEL0, "%s: Failed erase, " - "page 0x%08x\n", __func__, page); + pr_debug("%s: failed erase, page 0x%08x\n", + __func__, page); instr->state = MTD_ERASE_FAILED; instr->fail_addr = ((loff_t)page << chip->page_shift); @@ -2659,9 +2657,9 @@ erase_exit: if (!rewrite_bbt[chipnr]) continue; /* Update the BBT for chip */ - DEBUG(MTD_DEBUG_LEVEL0, "%s: nand_update_bbt " - "(%d:0x%0llx 0x%0x)\n", __func__, chipnr, - rewrite_bbt[chipnr], chip->bbt_td->pages[chipnr]); + pr_debug("%s: nand_update_bbt (%d:0x%0llx 0x%0x)\n", + __func__, chipnr, rewrite_bbt[chipnr], + chip->bbt_td->pages[chipnr]); nand_update_bbt(mtd, rewrite_bbt[chipnr]); } @@ -2679,7 +2677,7 @@ static void nand_sync(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; - DEBUG(MTD_DEBUG_LEVEL3, "%s: called\n", __func__); + pr_debug("%s: called\n", __func__); /* Grab the lock and see if the device is available */ nand_get_device(chip, mtd, FL_SYNCING); diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index dba332327d4f..6aa8125772b8 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -1383,8 +1383,9 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) block = (int)(offs >> (this->bbt_erase_shift - 1)); res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03; - DEBUG(MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n", - (unsigned int)offs, block >> 1, res); + pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08x: " + "(block %d) 0x%02x\n", + (unsigned int)offs, block >> 1, res); switch ((int)res) { case 0x00: diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c index 0f931e757116..16cca9b99052 100644 --- a/drivers/mtd/nand/nand_bch.c +++ b/drivers/mtd/nand/nand_bch.c @@ -93,7 +93,7 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, buf[errloc[i] >> 3] ^= (1 << (errloc[i] & 7)); /* else error in ecc, no action needed */ - DEBUG(MTD_DEBUG_LEVEL0, "%s: corrected bitflip %u\n", + pr_debug("%s: corrected bitflip %u\n", __func__, errloc[i]); } } else if (count < 0) { diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index c5e33fdcbc86..81e6bc0c9048 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -741,12 +741,12 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ case 1: /* Uncorrectable error */ - DEBUG(MTD_DEBUG_LEVEL0, "ECC UNCORRECTED_ERROR 1\n"); + pr_debug("ECC UNCORRECTED_ERROR 1\n"); return -1; case 11: /* UN-Correctable error */ - DEBUG(MTD_DEBUG_LEVEL0, "ECC UNCORRECTED_ERROR B\n"); + pr_debug("ECC UNCORRECTED_ERROR B\n"); return -1; case 12: @@ -763,7 +763,7 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ find_bit = (ecc_bit[5] << 2) + (ecc_bit[3] << 1) + ecc_bit[1]; - DEBUG(MTD_DEBUG_LEVEL0, "Correcting single bit ECC error at " + pr_debug("Correcting single bit ECC error at " "offset: %d, bit: %d\n", find_byte, find_bit); page_data[find_byte] ^= (1 << find_bit); @@ -776,7 +776,7 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ ecc_data2[2] == 0) return 0; } - DEBUG(MTD_DEBUG_LEVEL0, "UNCORRECTED_ERROR default\n"); + pr_debug("UNCORRECTED_ERROR default\n"); return -1; } } diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c index 33fe922b972c..f309addc2fa0 100644 --- a/drivers/mtd/nand/rtc_from4.c +++ b/drivers/mtd/nand/rtc_from4.c @@ -380,7 +380,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha /* Let the library code do its magic. */ res = decode_rs8(rs_decoder, (uint8_t *) buf, par, 512, syn, 0, NULL, 0xff, NULL); if (res > 0) { - DEBUG(MTD_DEBUG_LEVEL0, "rtc_from4_correct_data: " "ECC corrected %d errors on read\n", res); + pr_debug("rtc_from4_correct_data: " "ECC corrected %d errors on read\n", res); } return res; } diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index f3b3239746c8..93d6fc68b892 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -63,7 +63,7 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) return; } - DEBUG(MTD_DEBUG_LEVEL1, "NFTL: add_mtd for %s\n", mtd->name); + pr_debug("NFTL: add_mtd for %s\n", mtd->name); nftl = kzalloc(sizeof(struct NFTLrecord), GFP_KERNEL); @@ -130,7 +130,7 @@ static void nftl_remove_dev(struct mtd_blktrans_dev *dev) { struct NFTLrecord *nftl = (void *)dev; - DEBUG(MTD_DEBUG_LEVEL1, "NFTL: remove_dev (i=%d)\n", dev->devnum); + pr_debug("NFTL: remove_dev (i=%d)\n", dev->devnum); del_mtd_blktrans_dev(dev); kfree(nftl->ReplUnitTable); @@ -218,7 +218,7 @@ static u16 NFTL_findfreeblock(struct NFTLrecord *nftl, int desperate ) /* Normally, we force a fold to happen before we run out of free blocks completely */ if (!desperate && nftl->numfreeEUNs < 2) { - DEBUG(MTD_DEBUG_LEVEL1, "NFTL_findfreeblock: there are too few free EUNs\n"); + pr_debug("NFTL_findfreeblock: there are too few free EUNs\n"); return BLOCK_NIL; } @@ -289,8 +289,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p if (block == 2) { foldmark = oob.u.c.FoldMark | oob.u.c.FoldMark1; if (foldmark == FOLD_MARK_IN_PROGRESS) { - DEBUG(MTD_DEBUG_LEVEL1, - "Write Inhibited on EUN %d\n", thisEUN); + pr_debug("Write Inhibited on EUN %d\n", thisEUN); inplace = 0; } else { /* There's no other reason not to do inplace, @@ -355,7 +354,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p if (BlockLastState[block] != SECTOR_FREE && BlockMap[block] != BLOCK_NIL && BlockMap[block] != targetEUN) { - DEBUG(MTD_DEBUG_LEVEL1, "Setting inplace to 0. VUC %d, " + pr_debug("Setting inplace to 0. VUC %d, " "block %d was %x lastEUN, " "and is in EUN %d (%s) %d\n", thisVUC, block, BlockLastState[block], @@ -371,14 +370,14 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p pendingblock < ((thisVUC + 1)* (nftl->EraseSize / 512)) && BlockLastState[pendingblock - (thisVUC * (nftl->EraseSize / 512))] != SECTOR_FREE) { - DEBUG(MTD_DEBUG_LEVEL1, "Pending write not free in EUN %d. " + pr_debug("Pending write not free in EUN %d. " "Folding out of place.\n", targetEUN); inplace = 0; } } if (!inplace) { - DEBUG(MTD_DEBUG_LEVEL1, "Cannot fold Virtual Unit Chain %d in place. " + pr_debug("Cannot fold Virtual Unit Chain %d in place. " "Trying out-of-place\n", thisVUC); /* We need to find a targetEUN to fold into. */ targetEUN = NFTL_findfreeblock(nftl, 1); @@ -408,7 +407,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p and the Erase Unit into which we are supposed to be copying. Go for it. */ - DEBUG(MTD_DEBUG_LEVEL1,"Folding chain %d into unit %d\n", thisVUC, targetEUN); + pr_debug("Folding chain %d into unit %d\n", thisVUC, targetEUN); for (block = 0; block < nftl->EraseSize / 512 ; block++) { unsigned char movebuf[512]; int ret; @@ -455,7 +454,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p has duplicate chains, we need to free one of the chains because it's not necessary any more. */ thisEUN = nftl->EUNtable[thisVUC]; - DEBUG(MTD_DEBUG_LEVEL1,"Want to erase\n"); + pr_debug("Want to erase\n"); /* For each block in the old chain (except the targetEUN of course), free it and make it available for future use */ @@ -568,7 +567,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block) (writeEUN * nftl->EraseSize) + blockofs, 8, &retlen, (char *)&bci); - DEBUG(MTD_DEBUG_LEVEL2, "Status of block %d in EUN %d is %x\n", + pr_debug("Status of block %d in EUN %d is %x\n", block , writeEUN, le16_to_cpu(bci.Status)); status = bci.Status | bci.Status1; @@ -621,7 +620,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block) but they are reserved for when we're desperate. Well, now we're desperate. */ - DEBUG(MTD_DEBUG_LEVEL1, "Using desperate==1 to find free EUN to accommodate write to VUC %d\n", thisVUC); + pr_debug("Using desperate==1 to find free EUN to accommodate write to VUC %d\n", thisVUC); writeEUN = NFTL_findfreeblock(nftl, 1); } if (writeEUN == BLOCK_NIL) { diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 30c652c071e8..b07b05259c92 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1122,7 +1122,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, int ret = 0; int writesize = this->writesize; - DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %i\n", + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int) from, (int) len); if (ops->mode == MTD_OOB_AUTO) @@ -1226,7 +1226,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, int ret = 0, boundary = 0; int writesize = this->writesize; - DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %i\n", + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int) from, (int) len); if (ops->mode == MTD_OOB_AUTO) @@ -1357,7 +1357,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, from += ops->ooboffs; - DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %i\n", + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int) from, (int) len); /* Initialize return length value */ @@ -1576,7 +1576,7 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, size_t len = ops->ooblen; u_char *buf = ops->oobbuf; - DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %zi\n", + pr_debug("%s: from = 0x%08x, len = %zi\n", __func__, (unsigned int) from, len); /* Initialize return value */ @@ -1750,7 +1750,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len, /* Wait for any existing operation to clear */ onenand_panic_wait(mtd); - DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n", + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int) to, (int) len); /* Initialize retlen, in case of early exit */ @@ -1883,7 +1883,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, u_char *oobbuf; int ret = 0, cmd; - DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n", + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int) to, (int) len); /* Initialize retlen, in case of early exit */ @@ -2078,7 +2078,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, to += ops->ooboffs; - DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n", + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int) to, (int) len); /* Initialize retlen, in case of early exit */ @@ -2489,7 +2489,7 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) struct mtd_erase_region_info *region = NULL; loff_t region_offset = 0; - DEBUG(MTD_DEBUG_LEVEL3, "%s: start=0x%012llx, len=%llu\n", __func__, + pr_debug("%s: start=0x%012llx, len=%llu\n", __func__, (unsigned long long) instr->addr, (unsigned long long) instr->len); /* Do not allow erase past end of device */ @@ -2558,7 +2558,7 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) */ static void onenand_sync(struct mtd_info *mtd) { - DEBUG(MTD_DEBUG_LEVEL3, "%s: called\n", __func__); + pr_debug("%s: called\n", __func__); /* Grab the lock and see if the device is available */ onenand_get_device(mtd, FL_SYNCING); diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c index 09a7d1fb511d..3b9a2a9573c6 100644 --- a/drivers/mtd/onenand/onenand_bbt.c +++ b/drivers/mtd/onenand/onenand_bbt.c @@ -153,7 +153,7 @@ static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) block = (int) (onenand_block(this, offs) << 1); res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03; - DEBUG(MTD_DEBUG_LEVEL2, "onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n", + pr_debug("onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n", (unsigned int) offs, block >> 1, res); switch ((int) res) { diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c index 00d1405af50b..5f917f0a9609 100644 --- a/drivers/mtd/ssfdc.c +++ b/drivers/mtd/ssfdc.c @@ -135,8 +135,7 @@ static int get_valid_cis_sector(struct mtd_info *mtd) /* Found */ cis_sector = (int)(offset >> SECTOR_SHIFT); } else { - DEBUG(MTD_DEBUG_LEVEL1, - "SSFDC_RO: CIS/IDI sector not found" + pr_debug("SSFDC_RO: CIS/IDI sector not found" " on %s (mtd%d)\n", mtd->name, mtd->index); } @@ -221,8 +220,7 @@ static int get_logical_address(uint8_t *oob_buf) block_address >>= 1; if (get_parity(block_address, 10) != parity) { - DEBUG(MTD_DEBUG_LEVEL0, - "SSFDC_RO: logical address field%d" + pr_debug("SSFDC_RO: logical address field%d" "parity error(0x%04X)\n", j+1, block_address); } else { @@ -235,7 +233,7 @@ static int get_logical_address(uint8_t *oob_buf) if (!ok) block_address = -2; - DEBUG(MTD_DEBUG_LEVEL3, "SSFDC_RO: get_logical_address() %d\n", + pr_debug("SSFDC_RO: get_logical_address() %d\n", block_address); return block_address; @@ -249,7 +247,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc) int ret, block_address, phys_block; struct mtd_info *mtd = ssfdc->mbd.mtd; - DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: build_block_map() nblks=%d (%luK)\n", + pr_debug("SSFDC_RO: build_block_map() nblks=%d (%luK)\n", ssfdc->map_len, (unsigned long)ssfdc->map_len * ssfdc->erase_size / 1024); @@ -262,8 +260,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc) ret = read_raw_oob(mtd, offset, oob_buf); if (ret < 0) { - DEBUG(MTD_DEBUG_LEVEL0, - "SSFDC_RO: mtd read_oob() failed at %lu\n", + pr_debug("SSFDC_RO: mtd read_oob() failed at %lu\n", offset); return -1; } @@ -279,8 +276,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc) ssfdc->logic_block_map[block_address] = (unsigned short)phys_block; - DEBUG(MTD_DEBUG_LEVEL2, - "SSFDC_RO: build_block_map() phys_block=%d," + pr_debug("SSFDC_RO: build_block_map() phys_block=%d," "logic_block_addr=%d, zone=%d\n", phys_block, block_address, zone_index); } @@ -316,8 +312,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) ssfdc->erase_size = mtd->erasesize; ssfdc->map_len = (u32)mtd->size / mtd->erasesize; - DEBUG(MTD_DEBUG_LEVEL1, - "SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n", + pr_debug("SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n", ssfdc->cis_block, ssfdc->erase_size, ssfdc->map_len, DIV_ROUND_UP(ssfdc->map_len, MAX_PHYS_BLK_PER_ZONE)); @@ -328,7 +323,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd) ssfdc->cylinders = (unsigned short)(((u32)mtd->size >> SECTOR_SHIFT) / ((long)ssfdc->sectors * (long)ssfdc->heads)); - DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n", + pr_debug("SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n", ssfdc->cylinders, ssfdc->heads , ssfdc->sectors, (long)ssfdc->cylinders * (long)ssfdc->heads * (long)ssfdc->sectors); @@ -365,7 +360,7 @@ static void ssfdcr_remove_dev(struct mtd_blktrans_dev *dev) { struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; - DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: remove_dev (i=%d)\n", dev->devnum); + pr_debug("SSFDC_RO: remove_dev (i=%d)\n", dev->devnum); del_mtd_blktrans_dev(dev); kfree(ssfdc->logic_block_map); @@ -381,8 +376,7 @@ static int ssfdcr_readsect(struct mtd_blktrans_dev *dev, offset = (int)(logic_sect_no % sectors_per_block); block_address = (int)(logic_sect_no / sectors_per_block); - DEBUG(MTD_DEBUG_LEVEL3, - "SSFDC_RO: ssfdcr_readsect(%lu) sec_per_blk=%d, ofst=%d," + pr_debug("SSFDC_RO: ssfdcr_readsect(%lu) sec_per_blk=%d, ofst=%d," " block_addr=%d\n", logic_sect_no, sectors_per_block, offset, block_address); @@ -391,8 +385,7 @@ static int ssfdcr_readsect(struct mtd_blktrans_dev *dev, block_address = ssfdc->logic_block_map[block_address]; - DEBUG(MTD_DEBUG_LEVEL3, - "SSFDC_RO: ssfdcr_readsect() phys_block_addr=%d\n", + pr_debug("SSFDC_RO: ssfdcr_readsect() phys_block_addr=%d\n", block_address); if (block_address < 0xffff) { @@ -401,8 +394,7 @@ static int ssfdcr_readsect(struct mtd_blktrans_dev *dev, sect_no = (unsigned long)block_address * sectors_per_block + offset; - DEBUG(MTD_DEBUG_LEVEL3, - "SSFDC_RO: ssfdcr_readsect() phys_sect_no=%lu\n", + pr_debug("SSFDC_RO: ssfdcr_readsect() phys_sect_no=%lu\n", sect_no); if (read_physical_sector(ssfdc->mbd.mtd, buf, sect_no) < 0) @@ -418,7 +410,7 @@ static int ssfdcr_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo) { struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev; - DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: ssfdcr_getgeo() C=%d, H=%d, S=%d\n", + pr_debug("SSFDC_RO: ssfdcr_getgeo() C=%d, H=%d, S=%d\n", ssfdc->cylinders, ssfdc->heads, ssfdc->sectors); geo->heads = ssfdc->heads; -- cgit v1.2.3 From 0a32a10264d151bc2d1616d69edaf915aa728698 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:10 -0700 Subject: mtd: cleanup style on pr_debug messages Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/chips/cfi_cmdset_0002.c | 10 ++++------ drivers/mtd/devices/m25p80.c | 33 ++++++++++++++------------------- drivers/mtd/devices/mtd_dataflash.c | 18 +++++++++--------- drivers/mtd/inftlcore.c | 35 ++++++++++++++++------------------- drivers/mtd/inftlmount.c | 3 +-- drivers/mtd/nand/mxc_nand.c | 6 ++---- drivers/mtd/nand/nand_bch.c | 4 ++-- drivers/mtd/nand/omap2.c | 4 ++-- drivers/mtd/onenand/onenand_base.c | 31 ++++++++++++++++--------------- 9 files changed, 66 insertions(+), 78 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 2302cc00b4a9..8d70895a58d6 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -440,8 +440,8 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) mtd->writesize = 1; mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; - pr_debug("MTD %s(): write buffer size %d\n", - __func__, mtd->writebufsize); + pr_debug("MTD %s(): write buffer size %d\n", __func__, + mtd->writebufsize); mtd->reboot_notifier.notifier_call = cfi_amdstd_reboot; @@ -1798,8 +1798,7 @@ static int do_atmel_lock(struct map_info *map, struct flchip *chip, goto out_unlock; chip->state = FL_LOCKING; - pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", - __func__, adr, len); + pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", __func__, adr, len); cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); @@ -1834,8 +1833,7 @@ static int do_atmel_unlock(struct map_info *map, struct flchip *chip, goto out_unlock; chip->state = FL_UNLOCKING; - pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", - __func__, adr, len); + pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", __func__, adr, len); cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi, cfi->device_type, NULL); diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 6417bd6b36ff..e6ba034c45bc 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -208,9 +208,8 @@ static int wait_till_ready(struct m25p *flash) */ static int erase_chip(struct m25p *flash) { - pr_debug("%s: %s %lldKiB\n", - dev_name(&flash->spi->dev), __func__, - (long long)(flash->mtd.size >> 10)); + pr_debug("%s: %s %lldKiB\n", dev_name(&flash->spi->dev), __func__, + (long long)(flash->mtd.size >> 10)); /* Wait until finished previous write command. */ if (wait_till_ready(flash)) @@ -249,9 +248,8 @@ static int m25p_cmdsz(struct m25p *flash) */ static int erase_sector(struct m25p *flash, u32 offset) { - pr_debug("%s: %s %dKiB at 0x%08x\n", - dev_name(&flash->spi->dev), __func__, - flash->mtd.erasesize / 1024, offset); + pr_debug("%s: %s %dKiB at 0x%08x\n", dev_name(&flash->spi->dev), + __func__, flash->mtd.erasesize / 1024, offset); /* Wait until finished previous write command. */ if (wait_till_ready(flash)) @@ -285,9 +283,9 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr) u32 addr,len; uint32_t rem; - pr_debug("%s: %s %s 0x%llx, len %lld\n", - dev_name(&flash->spi->dev), __func__, "at", - (long long)instr->addr, (long long)instr->len); + pr_debug("%s: %s at 0x%llx, len %lld\n", dev_name(&flash->spi->dev), + __func__, (long long)instr->addr, + (long long)instr->len); /* sanity checks */ if (instr->addr + instr->len > flash->mtd.size) @@ -347,9 +345,8 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len, struct spi_transfer t[2]; struct spi_message m; - pr_debug("%s: %s %s 0x%08x, len %zd\n", - dev_name(&flash->spi->dev), __func__, "from", - (u32)from, len); + pr_debug("%s: %s from 0x%08x, len %zd\n", dev_name(&flash->spi->dev), + __func__, (u32)from, len); /* sanity checks */ if (!len) @@ -416,9 +413,8 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len, struct spi_transfer t[2]; struct spi_message m; - pr_debug("%s: %s %s 0x%08x, len %zd\n", - dev_name(&flash->spi->dev), __func__, "to", - (u32)to, len); + pr_debug("%s: %s to 0x%08x, len %zd\n", dev_name(&flash->spi->dev), + __func__, (u32)to, len); *retlen = 0; @@ -509,9 +505,8 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len, size_t actual; int cmd_sz, ret; - pr_debug("%s: %s %s 0x%08x, len %zd\n", - dev_name(&flash->spi->dev), __func__, "to", - (u32)to, len); + pr_debug("%s: %s to 0x%08x, len %zd\n", dev_name(&flash->spi->dev), + __func__, (u32)to, len); *retlen = 0; @@ -788,7 +783,7 @@ static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi) tmp = spi_write_then_read(spi, &code, 1, id, 5); if (tmp < 0) { pr_debug("%s: error %d reading JEDEC ID\n", - dev_name(&spi->dev), tmp); + dev_name(&spi->dev), tmp); return ERR_PTR(tmp); } jedec = id[0]; diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index f409aef58ed2..d75c7af18a63 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -249,8 +249,8 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len, uint8_t *command; int status; - pr_debug("%s: read 0x%x..0x%x\n", - dev_name(&priv->spi->dev), (unsigned)from, (unsigned)(from + len)); + pr_debug("%s: read 0x%x..0x%x\n", dev_name(&priv->spi->dev), + (unsigned)from, (unsigned)(from + len)); *retlen = 0; @@ -384,7 +384,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, status = spi_sync(spi, &msg); if (status < 0) - pr_debug("%s: xfer %u -> %d \n", + pr_debug("%s: xfer %u -> %d\n", dev_name(&spi->dev), addr, status); (void) dataflash_waitready(priv->spi); @@ -406,7 +406,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, status = spi_sync(spi, &msg); spi_transfer_del(x + 1); if (status < 0) - pr_debug("%s: pgm %u/%u -> %d \n", + pr_debug("%s: pgm %u/%u -> %d\n", dev_name(&spi->dev), addr, writelen, status); (void) dataflash_waitready(priv->spi); @@ -426,7 +426,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len, status = spi_sync(spi, &msg); if (status < 0) - pr_debug("%s: compare %u -> %d \n", + pr_debug("%s: compare %u -> %d\n", dev_name(&spi->dev), addr, status); status = dataflash_waitready(priv->spi); @@ -906,14 +906,14 @@ static int __devinit dataflash_probe(struct spi_device *spi) break; /* obsolete AT45DB1282 not (yet?) supported */ default: - pr_debug("%s: unsupported device (%x)\n", - dev_name(&spi->dev), status & 0x3c); + pr_debug("%s: unsupported device (%x)\n", dev_name(&spi->dev), + status & 0x3c); status = -ENODEV; } if (status < 0) - pr_debug("%s: add_dataflash --> %d\n", - dev_name(&spi->dev), status); + pr_debug("%s: add_dataflash --> %d\n", dev_name(&spi->dev), + status); return status; } diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index 232e11b1526c..21aa981e42cd 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -213,16 +213,16 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate) u16 pot = inftl->LastFreeEUN; int silly = inftl->nb_blocks; - pr_debug("INFTL: INFTL_findfreeblock(inftl=%p," - "desperate=%d)\n", inftl, desperate); + pr_debug("INFTL: INFTL_findfreeblock(inftl=%p,desperate=%d)\n", + inftl, desperate); /* * Normally, we force a fold to happen before we run out of free * blocks completely. */ if (!desperate && inftl->numfreeEUNs < 2) { - pr_debug("INFTL: there are too few free " - "EUNs (%d)\n", inftl->numfreeEUNs); + pr_debug("INFTL: there are too few free EUNs (%d)\n", + inftl->numfreeEUNs); return BLOCK_NIL; } @@ -257,8 +257,8 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned struct inftl_oob oob; size_t retlen; - pr_debug("INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d," - "pending=%d)\n", inftl, thisVUC, pendingblock); + pr_debug("INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d,pending=%d)\n", + inftl, thisVUC, pendingblock); memset(BlockMap, 0xff, sizeof(BlockMap)); memset(BlockDeleted, 0, sizeof(BlockDeleted)); @@ -321,8 +321,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned * Chain, and the Erase Unit into which we are supposed to be copying. * Go for it. */ - pr_debug("INFTL: folding chain %d into unit %d\n", - thisVUC, targetEUN); + pr_debug("INFTL: folding chain %d into unit %d\n", thisVUC, targetEUN); for (block = 0; block < inftl->EraseSize/SECTORSIZE ; block++) { unsigned char movebuf[SECTORSIZE]; @@ -353,8 +352,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned (block * SECTORSIZE), SECTORSIZE, &retlen, movebuf); if (ret != -EIO) - pr_debug("INFTL: error went " - "away on retry?\n"); + pr_debug("INFTL: error went away on retry?\n"); } memset(&oob, 0xff, sizeof(struct inftl_oob)); oob.b.Status = oob.b.Status1 = SECTOR_USED; @@ -370,8 +368,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned * is important, by doing oldest first if we crash/reboot then it * it is relatively simple to clean up the mess). */ - pr_debug("INFTL: want to erase virtual chain %d\n", - thisVUC); + pr_debug("INFTL: want to erase virtual chain %d\n", thisVUC); for (;;) { /* Find oldest unit in chain. */ @@ -482,8 +479,8 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block) size_t retlen; int silly, silly2 = 3; - pr_debug("INFTL: INFTL_findwriteunit(inftl=%p," - "block=%d)\n", inftl, block); + pr_debug("INFTL: INFTL_findwriteunit(inftl=%p,block=%d)\n", + inftl, block); do { /* @@ -499,8 +496,8 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block) blockofs, 8, &retlen, (char *)&bci); status = bci.Status | bci.Status1; - pr_debug("INFTL: status of block %d in " - "EUN %d is %x\n", block , writeEUN, status); + pr_debug("INFTL: status of block %d in EUN %d is %x\n", + block , writeEUN, status); switch(status) { case SECTOR_FREE: @@ -553,9 +550,9 @@ hitused: * Hopefully we free something, lets try again. * This time we are desperate... */ - pr_debug("INFTL: using desperate==1 " - "to find free EUN to accommodate write to " - "VUC %d\n", thisVUC); + pr_debug("INFTL: using desperate==1 to find free EUN " + "to accommodate write to VUC %d\n", + thisVUC); writeEUN = INFTL_findfreeblock(inftl, 1); if (writeEUN == BLOCK_NIL) { /* diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index d969c2d5d62b..bd82b04ec8f2 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -385,8 +385,7 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block) struct mtd_info *mtd = inftl->mbd.mtd; int physblock; - pr_debug("INFTL: INFTL_formatblock(inftl=%p," - "block=%d)\n", inftl, block); + pr_debug("INFTL: INFTL_formatblock(inftl=%p,block=%d)\n", inftl, block); memset(instr, 0, sizeof(struct erase_info)); diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 2fbfb71c237b..ebeb84316ecd 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -349,8 +349,7 @@ static void wait_op_done(struct mxc_nand_host *host, int useirq) udelay(1); } if (max_retries < 0) - pr_debug("%s: INT not set\n", - __func__); + pr_debug("%s: INT not set\n", __func__); } } @@ -386,8 +385,7 @@ static void send_cmd_v1_v2(struct mxc_nand_host *host, uint16_t cmd, int useirq) udelay(1); } if (max_retries < 0) - pr_debug("%s: RESET failed\n", - __func__); + pr_debug("%s: RESET failed\n", __func__); } else { /* Wait for operation to complete */ wait_op_done(host, useirq); diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c index 16cca9b99052..3803e0bba23b 100644 --- a/drivers/mtd/nand/nand_bch.c +++ b/drivers/mtd/nand/nand_bch.c @@ -93,8 +93,8 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf, buf[errloc[i] >> 3] ^= (1 << (errloc[i] & 7)); /* else error in ecc, no action needed */ - pr_debug("%s: corrected bitflip %u\n", - __func__, errloc[i]); + pr_debug("%s: corrected bitflip %u\n", __func__, + errloc[i]); } } else if (count < 0) { printk(KERN_ERR "ecc unrecoverable error\n"); diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 81e6bc0c9048..19b283f2c80c 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -763,8 +763,8 @@ static int omap_compare_ecc(u8 *ecc_data1, /* read from NAND memory */ find_bit = (ecc_bit[5] << 2) + (ecc_bit[3] << 1) + ecc_bit[1]; - pr_debug("Correcting single bit ECC error at " - "offset: %d, bit: %d\n", find_byte, find_bit); + pr_debug("Correcting single bit ECC error at offset: " + "%d, bit: %d\n", find_byte, find_bit); page_data[find_byte] ^= (1 << find_bit); diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index b07b05259c92..de98791f8101 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1122,8 +1122,8 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, int ret = 0; int writesize = this->writesize; - pr_debug("%s: from = 0x%08x, len = %i\n", - __func__, (unsigned int) from, (int) len); + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, + (int)len); if (ops->mode == MTD_OOB_AUTO) oobsize = this->ecclayout->oobavail; @@ -1226,8 +1226,8 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, int ret = 0, boundary = 0; int writesize = this->writesize; - pr_debug("%s: from = 0x%08x, len = %i\n", - __func__, (unsigned int) from, (int) len); + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, + (int)len); if (ops->mode == MTD_OOB_AUTO) oobsize = this->ecclayout->oobavail; @@ -1357,8 +1357,8 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, from += ops->ooboffs; - pr_debug("%s: from = 0x%08x, len = %i\n", - __func__, (unsigned int) from, (int) len); + pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, + (int)len); /* Initialize return length value */ ops->oobretlen = 0; @@ -1576,8 +1576,8 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from, size_t len = ops->ooblen; u_char *buf = ops->oobbuf; - pr_debug("%s: from = 0x%08x, len = %zi\n", - __func__, (unsigned int) from, len); + pr_debug("%s: from = 0x%08x, len = %zi\n", __func__, (unsigned int)from, + len); /* Initialize return value */ ops->oobretlen = 0; @@ -1750,8 +1750,8 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len, /* Wait for any existing operation to clear */ onenand_panic_wait(mtd); - pr_debug("%s: to = 0x%08x, len = %i\n", - __func__, (unsigned int) to, (int) len); + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, + (int)len); /* Initialize retlen, in case of early exit */ *retlen = 0; @@ -1883,8 +1883,8 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, u_char *oobbuf; int ret = 0, cmd; - pr_debug("%s: to = 0x%08x, len = %i\n", - __func__, (unsigned int) to, (int) len); + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, + (int)len); /* Initialize retlen, in case of early exit */ ops->retlen = 0; @@ -2078,8 +2078,8 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, to += ops->ooboffs; - pr_debug("%s: to = 0x%08x, len = %i\n", - __func__, (unsigned int) to, (int) len); + pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, + (int)len); /* Initialize retlen, in case of early exit */ ops->oobretlen = 0; @@ -2490,7 +2490,8 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr) loff_t region_offset = 0; pr_debug("%s: start=0x%012llx, len=%llu\n", __func__, - (unsigned long long) instr->addr, (unsigned long long) instr->len); + (unsigned long long)instr->addr, + (unsigned long long)instr->len); /* Do not allow erase past end of device */ if (unlikely((len + addr) > mtd->size)) { -- cgit v1.2.3 From e6453521edcaa6f130946b5f4fcaf28dbc02f2ed Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:11 -0700 Subject: mtd: pcmciamtd: remove custom DEBUG() function We don't need a custom DEBUG() macro here. Just use the built-in kernel code with dynamic debugging features. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/pcmciamtd.c | 120 +++++++++++++++++++------------------------ 1 file changed, 52 insertions(+), 68 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index bbe168b65c26..afa9bd81220b 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -22,22 +22,6 @@ #include #include -#ifdef CONFIG_MTD_DEBUG -static int debug = CONFIG_MTD_DEBUG_VERBOSE; -module_param(debug, int, 0); -MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy"); -#undef DEBUG -#define DEBUG(n, format, arg...) \ - if (n <= debug) { \ - printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \ - } - -#else -#undef DEBUG -#define DEBUG(n, arg...) -static const int debug = 0; -#endif - #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg) #define DRIVER_DESC "PCMCIA Flash memory card driver" @@ -105,13 +89,13 @@ static caddr_t remap_window(struct map_info *map, unsigned long to) int ret; if (!pcmcia_dev_present(dev->p_dev)) { - DEBUG(1, "device removed"); + pr_debug("device removed\n"); return 0; } offset = to & ~(dev->win_size-1); if (offset != dev->offset) { - DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x", + pr_debug("Remapping window from 0x%8.8x to 0x%8.8x\n", dev->offset, offset); ret = pcmcia_map_mem_page(dev->p_dev, win, offset); if (ret != 0) @@ -132,7 +116,7 @@ static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs) return d; d.x[0] = readb(addr); - DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]); + pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", ofs, addr, d.x[0]); return d; } @@ -147,7 +131,7 @@ static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs) return d; d.x[0] = readw(addr); - DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]); + pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", ofs, addr, d.x[0]); return d; } @@ -157,7 +141,7 @@ static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; unsigned long win_size = dev->win_size; - DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); + pr_debug("to = %p from = %lu len = %zd\n", to, from, len); while(len) { int toread = win_size - (from & (win_size-1)); caddr_t addr; @@ -169,7 +153,7 @@ static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long if(!addr) return; - DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread); + pr_debug("memcpy from %p to %p len = %d\n", addr, to, toread); memcpy_fromio(to, addr, toread); len -= toread; to += toread; @@ -185,7 +169,7 @@ static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long if(!addr) return; - DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", adr, addr, d.x[0]); + pr_debug("adr = 0x%08lx (%p) data = 0x%02lx\n", adr, addr, d.x[0]); writeb(d.x[0], addr); } @@ -196,7 +180,7 @@ static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long if(!addr) return; - DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", adr, addr, d.x[0]); + pr_debug("adr = 0x%08lx (%p) data = 0x%04lx\n", adr, addr, d.x[0]); writew(d.x[0], addr); } @@ -206,7 +190,7 @@ static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const v struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; unsigned long win_size = dev->win_size; - DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); + pr_debug("to = %lu from = %p len = %zd\n", to, from, len); while(len) { int towrite = win_size - (to & (win_size-1)); caddr_t addr; @@ -218,7 +202,7 @@ static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const v if(!addr) return; - DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite); + pr_debug("memcpy from %p to %p len = %d\n", from, addr, towrite); memcpy_toio(addr, from, towrite); len -= towrite; to += towrite; @@ -240,7 +224,7 @@ static map_word pcmcia_read8(struct map_info *map, unsigned long ofs) return d; d.x[0] = readb(win_base + ofs); - DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", + pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", ofs, win_base + ofs, d.x[0]); return d; } @@ -255,7 +239,7 @@ static map_word pcmcia_read16(struct map_info *map, unsigned long ofs) return d; d.x[0] = readw(win_base + ofs); - DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", + pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", ofs, win_base + ofs, d.x[0]); return d; } @@ -268,7 +252,7 @@ static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, if(DEV_REMOVED(map)) return; - DEBUG(3, "to = %p from = %lu len = %zd", to, from, len); + pr_debug("to = %p from = %lu len = %zd\n", to, from, len); memcpy_fromio(to, win_base + from, len); } @@ -280,7 +264,7 @@ static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr) if(DEV_REMOVED(map)) return; - DEBUG(3, "adr = 0x%08lx (%p) data = 0x%02lx", + pr_debug("adr = 0x%08lx (%p) data = 0x%02lx\n", adr, win_base + adr, d.x[0]); writeb(d.x[0], win_base + adr); } @@ -293,7 +277,7 @@ static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr) if(DEV_REMOVED(map)) return; - DEBUG(3, "adr = 0x%08lx (%p) data = 0x%04lx", + pr_debug("adr = 0x%08lx (%p) data = 0x%04lx\n", adr, win_base + adr, d.x[0]); writew(d.x[0], win_base + adr); } @@ -306,7 +290,7 @@ static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *f if(DEV_REMOVED(map)) return; - DEBUG(3, "to = %lu from = %p len = %zd", to, from, len); + pr_debug("to = %lu from = %p len = %zd\n", to, from, len); memcpy_toio(win_base + to, from, len); } @@ -316,7 +300,7 @@ static void pcmciamtd_set_vpp(struct map_info *map, int on) struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1; struct pcmcia_device *link = dev->p_dev; - DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp); + pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp); pcmcia_fixup_vpp(link, on ? dev->vpp : 0); } @@ -325,7 +309,7 @@ static void pcmciamtd_release(struct pcmcia_device *link) { struct pcmciamtd_dev *dev = link->priv; - DEBUG(3, "link = 0x%p", link); + pr_debug("link = 0x%p\n", link); if (link->resource[2]->end) { if(dev->win_base) { @@ -347,7 +331,7 @@ static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, if (!pcmcia_parse_tuple(tuple, &parse)) { cistpl_format_t *t = &parse.format; (void)t; /* Shut up, gcc */ - DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u", + pr_debug("Format type: %u, Error Detection: %u, offset = %u, length =%u\n", t->type, t->edc, t->offset, t->length); } return -ENOSPC; @@ -363,7 +347,7 @@ static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, if (!pcmcia_parse_tuple(tuple, &parse)) { cistpl_jedec_t *t = &parse.jedec; for (i = 0; i < t->nid; i++) - DEBUG(2, "JEDEC: 0x%02x 0x%02x", + pr_debug("JEDEC: 0x%02x 0x%02x\n", t->id[i].mfr, t->id[i].info); } return -ENOSPC; @@ -382,14 +366,14 @@ static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, if (pcmcia_parse_tuple(tuple, &parse)) return -EINVAL; - DEBUG(2, "Common memory:"); + pr_debug("Common memory:\n"); dev->pcmcia_map.size = t->dev[0].size; /* from here on: DEBUG only */ for (i = 0; i < t->ndev; i++) { - DEBUG(2, "Region %d, type = %u", i, t->dev[i].type); - DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp); - DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed); - DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size); + pr_debug("Region %d, type = %u\n", i, t->dev[i].type); + pr_debug("Region %d, wp = %u\n", i, t->dev[i].wp); + pr_debug("Region %d, speed = %u ns\n", i, t->dev[i].speed); + pr_debug("Region %d, size = %u bytes\n", i, t->dev[i].size); } return 0; } @@ -409,12 +393,12 @@ static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev, dev->pcmcia_map.bankwidth = t->geo[0].buswidth; /* from here on: DEBUG only */ for (i = 0; i < t->ngeo; i++) { - DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth); - DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block); - DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block); - DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block); - DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition); - DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave); + pr_debug("region: %d bankwidth = %u\n", i, t->geo[i].buswidth); + pr_debug("region: %d erase_block = %u\n", i, t->geo[i].erase_block); + pr_debug("region: %d read_block = %u\n", i, t->geo[i].read_block); + pr_debug("region: %d write_block = %u\n", i, t->geo[i].write_block); + pr_debug("region: %d partition = %u\n", i, t->geo[i].partition); + pr_debug("region: %d interleave = %u\n", i, t->geo[i].interleave); } return 0; } @@ -432,7 +416,7 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev if (p_dev->prod_id[i]) strcat(dev->mtd_name, p_dev->prod_id[i]); } - DEBUG(2, "Found name: %s", dev->mtd_name); + pr_debug("Found name: %s\n", dev->mtd_name); } #ifdef CONFIG_MTD_DEBUG @@ -450,12 +434,12 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev if(force_size) { dev->pcmcia_map.size = force_size << 20; - DEBUG(2, "size forced to %dM", force_size); + pr_debug("size forced to %dM\n", force_size); } if(bankwidth) { dev->pcmcia_map.bankwidth = bankwidth; - DEBUG(2, "bankwidth forced to %d", bankwidth); + pr_debug("bankwidth forced to %d\n", bankwidth); } dev->pcmcia_map.name = dev->mtd_name; @@ -464,7 +448,7 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev *new_name = 1; } - DEBUG(1, "Device: Size: %lu Width:%d Name: %s", + pr_debug("Device: Size: %lu Width:%d Name: %s\n", dev->pcmcia_map.size, dev->pcmcia_map.bankwidth << 3, dev->mtd_name); } @@ -479,7 +463,7 @@ static int pcmciamtd_config(struct pcmcia_device *link) static char *probes[] = { "jedec_probe", "cfi_probe" }; int new_name = 0; - DEBUG(3, "link=0x%p", link); + pr_debug("link=0x%p\n", link); card_settings(dev, link, &new_name); @@ -512,11 +496,11 @@ static int pcmciamtd_config(struct pcmcia_device *link) do { int ret; - DEBUG(2, "requesting window with size = %luKiB memspeed = %d", + pr_debug("requesting window with size = %luKiB memspeed = %d\n", (unsigned long) resource_size(link->resource[2]) >> 10, mem_speed); ret = pcmcia_request_window(link, link->resource[2], mem_speed); - DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size); + pr_debug("ret = %d dev->win_size = %d\n", ret, dev->win_size); if(ret) { j++; link->resource[2]->start = 0; @@ -524,21 +508,21 @@ static int pcmciamtd_config(struct pcmcia_device *link) force_size << 20 : MAX_PCMCIA_ADDR; link->resource[2]->end >>= j; } else { - DEBUG(2, "Got window of size %luKiB", (unsigned long) + pr_debug("Got window of size %luKiB\n", (unsigned long) resource_size(link->resource[2]) >> 10); dev->win_size = resource_size(link->resource[2]); break; } } while (link->resource[2]->end >= 0x1000); - DEBUG(2, "dev->win_size = %d", dev->win_size); + pr_debug("dev->win_size = %d\n", dev->win_size); if(!dev->win_size) { dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n"); pcmciamtd_release(link); return -ENODEV; } - DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10); + pr_debug("Allocated a window of %dKiB\n", dev->win_size >> 10); /* Get write protect status */ dev->win_base = ioremap(link->resource[2]->start, @@ -549,7 +533,7 @@ static int pcmciamtd_config(struct pcmcia_device *link) pcmciamtd_release(link); return -ENODEV; } - DEBUG(1, "mapped window dev = %p @ %pR, base = %p", + pr_debug("mapped window dev = %p @ %pR, base = %p\n", dev, link->resource[2], dev->win_base); dev->offset = 0; @@ -564,7 +548,7 @@ static int pcmciamtd_config(struct pcmcia_device *link) } link->config_index = 0; - DEBUG(2, "Setting Configuration"); + pr_debug("Setting Configuration\n"); ret = pcmcia_enable_device(link); if (ret != 0) { if (dev->win_base) { @@ -580,17 +564,17 @@ static int pcmciamtd_config(struct pcmcia_device *link) mtd = do_map_probe("map_rom", &dev->pcmcia_map); } else { for(i = 0; i < ARRAY_SIZE(probes); i++) { - DEBUG(1, "Trying %s", probes[i]); + pr_debug("Trying %s\n", probes[i]); mtd = do_map_probe(probes[i], &dev->pcmcia_map); if(mtd) break; - DEBUG(1, "FAILED: %s", probes[i]); + pr_debug("FAILED: %s\n", probes[i]); } } if(!mtd) { - DEBUG(1, "Can not find an MTD"); + pr_debug("Can not find an MTD\n"); pcmciamtd_release(link); return -ENODEV; } @@ -617,7 +601,7 @@ static int pcmciamtd_config(struct pcmcia_device *link) /* If the memory found is fits completely into the mapped PCMCIA window, use the faster non-remapping read/write functions */ if(mtd->size <= dev->win_size) { - DEBUG(1, "Using non remapping memory functions"); + pr_debug("Using non remapping memory functions\n"); dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base; if (dev->pcmcia_map.bankwidth == 1) { dev->pcmcia_map.read = pcmcia_read8; @@ -645,7 +629,7 @@ static int pcmciamtd_config(struct pcmcia_device *link) static int pcmciamtd_suspend(struct pcmcia_device *dev) { - DEBUG(2, "EVENT_PM_RESUME"); + pr_debug("EVENT_PM_RESUME\n"); /* get_lock(link); */ @@ -654,7 +638,7 @@ static int pcmciamtd_suspend(struct pcmcia_device *dev) static int pcmciamtd_resume(struct pcmcia_device *dev) { - DEBUG(2, "EVENT_PM_SUSPEND"); + pr_debug("EVENT_PM_SUSPEND\n"); /* free_lock(link); */ @@ -666,7 +650,7 @@ static void pcmciamtd_detach(struct pcmcia_device *link) { struct pcmciamtd_dev *dev = link->priv; - DEBUG(3, "link=0x%p", link); + pr_debug("link=0x%p\n", link); if(dev->mtd_info) { mtd_device_unregister(dev->mtd_info); @@ -686,7 +670,7 @@ static int pcmciamtd_probe(struct pcmcia_device *link) /* Create new memory card device */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; - DEBUG(1, "dev=0x%p", dev); + pr_debug("dev=0x%p\n", dev); dev->p_dev = link; link->priv = dev; @@ -755,7 +739,7 @@ static int __init init_pcmciamtd(void) static void __exit exit_pcmciamtd(void) { - DEBUG(1, DRIVER_DESC " unloading"); + pr_debug(DRIVER_DESC " unloading"); pcmcia_unregister_driver(&pcmciamtd_driver); } -- cgit v1.2.3 From 87ed114bb22bc65fce59c709e67599c1940efc7f Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:12 -0700 Subject: mtd: remove CONFIG_MTD_DEBUG Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/Kconfig | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index cc02e2115efb..4925aa962af3 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -12,19 +12,6 @@ menuconfig MTD if MTD -config MTD_DEBUG - bool "Debugging" - help - This turns on low-level debugging for the entire MTD sub-system. - Normally, you should say 'N'. - -config MTD_DEBUG_VERBOSE - int "Debugging verbosity (0 = quiet, 3 = noisy)" - depends on MTD_DEBUG - default "0" - help - Determines the verbosity level of the MTD debugging messages. - config MTD_TESTS tristate "MTD tests support" depends on m -- cgit v1.2.3 From 278981c541b706a5b4b802890020689cd6ee7781 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:13 -0700 Subject: mtd: cleanup last uses of MTD_DEBUG config macros Some messages that were tied to CONFIG_MTD_DEBUG_VERBOSE can now simply be enabled using dynamic debugging features, if necessary. There's no need for special debugging functions here. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/inftlmount.c | 101 ++++++++++++++++++------------------------- drivers/mtd/maps/pcmciamtd.c | 4 -- 2 files changed, 43 insertions(+), 62 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index bd82b04ec8f2..d19898cea550 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -139,24 +139,20 @@ static int find_boot_record(struct INFTLrecord *inftl) mh->FormatFlags = le32_to_cpu(mh->FormatFlags); mh->PercentUsed = le32_to_cpu(mh->PercentUsed); -#ifdef CONFIG_MTD_DEBUG_VERBOSE - if (CONFIG_MTD_DEBUG_VERBOSE >= 2) { - printk("INFTL: Media Header ->\n" - " bootRecordID = %s\n" - " NoOfBootImageBlocks = %d\n" - " NoOfBinaryPartitions = %d\n" - " NoOfBDTLPartitions = %d\n" - " BlockMultiplerBits = %d\n" - " FormatFlgs = %d\n" - " OsakVersion = 0x%x\n" - " PercentUsed = %d\n", - mh->bootRecordID, mh->NoOfBootImageBlocks, - mh->NoOfBinaryPartitions, - mh->NoOfBDTLPartitions, - mh->BlockMultiplierBits, mh->FormatFlags, - mh->OsakVersion, mh->PercentUsed); - } -#endif + pr_debug("INFTL: Media Header ->\n" + " bootRecordID = %s\n" + " NoOfBootImageBlocks = %d\n" + " NoOfBinaryPartitions = %d\n" + " NoOfBDTLPartitions = %d\n" + " BlockMultiplerBits = %d\n" + " FormatFlgs = %d\n" + " OsakVersion = 0x%x\n" + " PercentUsed = %d\n", + mh->bootRecordID, mh->NoOfBootImageBlocks, + mh->NoOfBinaryPartitions, + mh->NoOfBDTLPartitions, + mh->BlockMultiplierBits, mh->FormatFlags, + mh->OsakVersion, mh->PercentUsed); if (mh->NoOfBDTLPartitions == 0) { printk(KERN_WARNING "INFTL: Media Header sanity check " @@ -200,19 +196,15 @@ static int find_boot_record(struct INFTLrecord *inftl) ip->spareUnits = le32_to_cpu(ip->spareUnits); ip->Reserved0 = le32_to_cpu(ip->Reserved0); -#ifdef CONFIG_MTD_DEBUG_VERBOSE - if (CONFIG_MTD_DEBUG_VERBOSE >= 2) { - printk(" PARTITION[%d] ->\n" - " virtualUnits = %d\n" - " firstUnit = %d\n" - " lastUnit = %d\n" - " flags = 0x%x\n" - " spareUnits = %d\n", - i, ip->virtualUnits, ip->firstUnit, - ip->lastUnit, ip->flags, - ip->spareUnits); - } -#endif + pr_debug(" PARTITION[%d] ->\n" + " virtualUnits = %d\n" + " firstUnit = %d\n" + " lastUnit = %d\n" + " flags = 0x%x\n" + " spareUnits = %d\n", + i, ip->virtualUnits, ip->firstUnit, + ip->lastUnit, ip->flags, + ip->spareUnits); if (ip->Reserved0 != ip->firstUnit) { struct erase_info *instr = &inftl->instr; @@ -475,30 +467,30 @@ void INFTL_dumptables(struct INFTLrecord *s) { int i; - printk("-------------------------------------------" + pr_debug("-------------------------------------------" "----------------------------------\n"); - printk("VUtable[%d] ->", s->nb_blocks); + pr_debug("VUtable[%d] ->", s->nb_blocks); for (i = 0; i < s->nb_blocks; i++) { if ((i % 8) == 0) - printk("\n%04x: ", i); - printk("%04x ", s->VUtable[i]); + pr_debug("\n%04x: ", i); + pr_debug("%04x ", s->VUtable[i]); } - printk("\n-------------------------------------------" + pr_debug("\n-------------------------------------------" "----------------------------------\n"); - printk("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks); + pr_debug("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks); for (i = 0; i <= s->lastEUN; i++) { if ((i % 8) == 0) - printk("\n%04x: ", i); - printk("%04x ", s->PUtable[i]); + pr_debug("\n%04x: ", i); + pr_debug("%04x ", s->PUtable[i]); } - printk("\n-------------------------------------------" + pr_debug("\n-------------------------------------------" "----------------------------------\n"); - printk("INFTL ->\n" + pr_debug("INFTL ->\n" " EraseSize = %d\n" " h/s/c = %d/%d/%d\n" " numvunits = %d\n" @@ -512,7 +504,7 @@ void INFTL_dumptables(struct INFTLrecord *s) s->numvunits, s->firstEUN, s->lastEUN, s->numfreeEUNs, s->LastFreeEUN, s->nb_blocks, s->nb_boot_blocks); - printk("\n-------------------------------------------" + pr_debug("\n-------------------------------------------" "----------------------------------\n"); } @@ -520,25 +512,25 @@ void INFTL_dumpVUchains(struct INFTLrecord *s) { int logical, block, i; - printk("-------------------------------------------" + pr_debug("-------------------------------------------" "----------------------------------\n"); - printk("INFTL Virtual Unit Chains:\n"); + pr_debug("INFTL Virtual Unit Chains:\n"); for (logical = 0; logical < s->nb_blocks; logical++) { block = s->VUtable[logical]; if (block > s->nb_blocks) continue; - printk(" LOGICAL %d --> %d ", logical, block); + pr_debug(" LOGICAL %d --> %d ", logical, block); for (i = 0; i < s->nb_blocks; i++) { if (s->PUtable[block] == BLOCK_NIL) break; block = s->PUtable[block]; - printk("%d ", block); + pr_debug("%d ", block); } - printk("\n"); + pr_debug("\n"); } - printk("-------------------------------------------" + pr_debug("-------------------------------------------" "----------------------------------\n"); } @@ -716,10 +708,7 @@ int INFTL_mount(struct INFTLrecord *s) logical_block = BLOCK_NIL; } -#ifdef CONFIG_MTD_DEBUG_VERBOSE - if (CONFIG_MTD_DEBUG_VERBOSE >= 2) - INFTL_dumptables(s); -#endif + INFTL_dumptables(s); /* * Second pass, check for infinite loops in chains. These are @@ -771,12 +760,8 @@ int INFTL_mount(struct INFTLrecord *s) } } -#ifdef CONFIG_MTD_DEBUG_VERBOSE - if (CONFIG_MTD_DEBUG_VERBOSE >= 2) - INFTL_dumptables(s); - if (CONFIG_MTD_DEBUG_VERBOSE >= 2) - INFTL_dumpVUchains(s); -#endif + INFTL_dumptables(s); + INFTL_dumpVUchains(s); /* * Third pass, format unreferenced blocks and init free block count. diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index afa9bd81220b..e8e9fec23553 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -321,7 +321,6 @@ static void pcmciamtd_release(struct pcmcia_device *link) } -#ifdef CONFIG_MTD_DEBUG static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev, tuple_t *tuple, void *priv_data) @@ -352,7 +351,6 @@ static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev, } return -ENOSPC; } -#endif static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev, tuple_t *tuple, @@ -419,10 +417,8 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev pr_debug("Found name: %s\n", dev->mtd_name); } -#ifdef CONFIG_MTD_DEBUG pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL); pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL); -#endif pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev); pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev); -- cgit v1.2.3 From 022bba8a301c4218c358e949af339e55e3540d9c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 19 Jul 2011 10:06:16 -0700 Subject: mtd: Kbuild: remove reference to MTD_PARTITIONS Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 891a9e644542..1b0d56cf4c47 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -254,7 +254,6 @@ config MTD_BCM963XX config MTD_LANTIQ tristate "Lantiq SoC NOR support" depends on LANTIQ - select MTD_PARTITIONS help Support for NOR flash attached to the Lantiq SoC's External Bus Unit. -- cgit v1.2.3 From 46a00d83ffb0d040f18068234e0eda8332c1e798 Mon Sep 17 00:00:00 2001 From: Jan Weitzel Date: Wed, 20 Jul 2011 09:28:04 +0200 Subject: mtd: use MTD_NAND_OMAP2 for OMAP4 use MTD_NAND_OMAP2 also for OMAP4 arch. testes with omap4430 Signed-off-by: Jan Weitzel Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 17235d097774..7ec5b494583f 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -109,10 +109,11 @@ config MTD_NAND_AMS_DELTA Support for NAND flash on Amstrad E3 (Delta). config MTD_NAND_OMAP2 - tristate "NAND Flash device on OMAP2 and OMAP3" - depends on ARM && (ARCH_OMAP2 || ARCH_OMAP3) + tristate "NAND Flash device on OMAP2, OMAP3 and OMAP4" + depends on ARM && (ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP4) help - Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms. + Support for NAND flash on Texas Instruments OMAP2, OMAP3 and OMAP4 + platforms. config MTD_NAND_IDS tristate -- cgit v1.2.3 From 92394b5c2be774425f255b5c7afbd8b19978fe12 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 20 Jul 2011 09:53:42 -0700 Subject: mtd: spelling fixes Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/ftl.c | 2 +- drivers/mtd/inftlmount.c | 2 +- drivers/mtd/mtdchar.c | 4 ++-- drivers/mtd/mtdconcat.c | 2 +- drivers/mtd/mtdcore.c | 2 +- drivers/mtd/mtdswap.c | 2 +- drivers/mtd/nftlmount.c | 26 +++++++++++++------------- drivers/mtd/sm_ftl.c | 16 ++++++++-------- 8 files changed, 28 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c index 95d77680ad15..c7382bb686c6 100644 --- a/drivers/mtd/ftl.c +++ b/drivers/mtd/ftl.c @@ -598,7 +598,7 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit, unit with the fewest erases, and usually pick the data unit with the most deleted blocks. But with a small probability, pick the oldest data unit instead. This means that we generally postpone - the next reclaimation as long as possible, but shuffle static + the next reclamation as long as possible, but shuffle static stuff around a bit for wear leveling. ======================================================================*/ diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c index d19898cea550..2ff601f816ce 100644 --- a/drivers/mtd/inftlmount.c +++ b/drivers/mtd/inftlmount.c @@ -367,7 +367,7 @@ static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address, * * Return: 0 when succeed, -1 on error. * - * ToDo: 1. Is it neceressary to check_free_sector after erasing ?? + * ToDo: 1. Is it necessary to check_free_sector after erasing ?? */ int INFTL_formatblock(struct INFTLrecord *inftl, int block) { diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 22526e98b85b..a75d55577e49 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -43,7 +43,7 @@ static struct vfsmount *mtd_inode_mnt __read_mostly; /* * Data structure to hold the pointer to the mtd device as well - * as mode information ofr various use cases. + * as mode information of various use cases. */ struct mtd_file_info { struct mtd_info *mtd; @@ -495,7 +495,7 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, /* * Copies (and truncates, if necessary) data from the larger struct, * nand_ecclayout, to the smaller, deprecated layout struct, - * nand_ecclayout_user. This is necessary only to suppport the deprecated + * nand_ecclayout_user. This is necessary only to support the deprecated * API ioctl ECCGETLAYOUT while allowing all new functionality to use * nand_ecclayout flexibly (i.e. the struct may change size in new * releases without requiring major rewrites). diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index e601672a5305..d3fabd144d6c 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -770,7 +770,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[], /* subdevices to c /* * Set up the new "super" device's MTD object structure, check for - * incompatibilites between the subdevices. + * incompatibilities between the subdevices. */ concat->mtd.type = subdev[0]->type; concat->mtd.flags = subdev[0]->flags; diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 887aed02aa2e..09bdbac51868 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -449,7 +449,7 @@ out_error: * is used, see 'parse_mtd_partitions()' for more information). If none are * found this functions tries to fallback to information specified in * @parts/@nr_parts. - * * If any parititioning info was found, this function registers the found + * * If any partitioning info was found, this function registers the found * partitions. * * If no partitions were found this function just registers the MTD device * @mtd and exits. diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index 5e5423b2aed2..9961063b90a2 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -86,7 +86,7 @@ struct swap_eb { unsigned int flags; unsigned int active_count; unsigned int erase_count; - unsigned int pad; /* speeds up pointer decremtnt */ + unsigned int pad; /* speeds up pointer decrement */ }; #define MTDSWAP_ECNT_MIN(rbroot) (rb_entry(rb_first(rbroot), struct swap_eb, \ diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c index e3cd1ffad2f6..ac4092591aea 100644 --- a/drivers/mtd/nftlmount.c +++ b/drivers/mtd/nftlmount.c @@ -32,7 +32,7 @@ /* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the * various device information of the NFTL partition and Bad Unit Table. Update - * the ReplUnitTable[] table accroding to the Bad Unit Table. ReplUnitTable[] + * the ReplUnitTable[] table according to the Bad Unit Table. ReplUnitTable[] * is used for management of Erase Unit in other routines in nftl.c and nftlmount.c */ static int find_boot_record(struct NFTLrecord *nftl) @@ -297,7 +297,7 @@ static int check_free_sectors(struct NFTLrecord *nftl, unsigned int address, int * * Return: 0 when succeed, -1 on error. * - * ToDo: 1. Is it neceressary to check_free_sector after erasing ?? + * ToDo: 1. Is it necessary to check_free_sector after erasing ?? */ int NFTL_formatblock(struct NFTLrecord *nftl, int block) { @@ -337,7 +337,7 @@ int NFTL_formatblock(struct NFTLrecord *nftl, int block) nb_erases = le32_to_cpu(uci.WearInfo); nb_erases++; - /* wrap (almost impossible with current flashs) or free block */ + /* wrap (almost impossible with current flash) or free block */ if (nb_erases == 0) nb_erases = 1; @@ -363,10 +363,10 @@ fail: * Mark as 'IGNORE' each incorrect sector. This check is only done if the chain * was being folded when NFTL was interrupted. * - * The check_free_sectors in this function is neceressary. There is a possible + * The check_free_sectors in this function is necessary. There is a possible * situation that after writing the Data area, the Block Control Information is * not updated according (due to power failure or something) which leaves the block - * in an umconsistent state. So we have to check if a block is really FREE in this + * in an inconsistent state. So we have to check if a block is really FREE in this * case. */ static void check_sectors_in_chain(struct NFTLrecord *nftl, unsigned int first_block) { @@ -428,7 +428,7 @@ static int calc_chain_length(struct NFTLrecord *nftl, unsigned int first_block) for (;;) { length++; - /* avoid infinite loops, although this is guaranted not to + /* avoid infinite loops, although this is guaranteed not to happen because of the previous checks */ if (length >= nftl->nb_blocks) { printk("nftl: length too long %d !\n", length); @@ -447,11 +447,11 @@ static int calc_chain_length(struct NFTLrecord *nftl, unsigned int first_block) /* format_chain: Format an invalid Virtual Unit chain. It frees all the Erase Units in a * Virtual Unit Chain, i.e. all the units are disconnected. * - * It is not stricly correct to begin from the first block of the chain because + * It is not strictly correct to begin from the first block of the chain because * if we stop the code, we may see again a valid chain if there was a first_block * flag in a block inside it. But is it really a problem ? * - * FixMe: Figure out what the last statesment means. What if power failure when we are + * FixMe: Figure out what the last statement means. What if power failure when we are * in the for (;;) loop formatting blocks ?? */ static void format_chain(struct NFTLrecord *nftl, unsigned int first_block) @@ -485,7 +485,7 @@ static void format_chain(struct NFTLrecord *nftl, unsigned int first_block) * totally free (only 0xff). * * Definition: Free Erase Unit -- A properly erased/formatted Free Erase Unit should have meet the - * following critia: + * following criteria: * 1. */ static int check_and_mark_free_block(struct NFTLrecord *nftl, int block) { @@ -502,7 +502,7 @@ static int check_and_mark_free_block(struct NFTLrecord *nftl, int block) erase_mark = le16_to_cpu ((h1.EraseMark | h1.EraseMark1)); if (erase_mark != ERASE_MARK) { /* if no erase mark, the block must be totally free. This is - possible in two cases : empty filsystem or interrupted erase (very unlikely) */ + possible in two cases : empty filesystem or interrupted erase (very unlikely) */ if (check_free_sectors (nftl, block * nftl->EraseSize, nftl->EraseSize, 1) != 0) return -1; @@ -544,7 +544,7 @@ static int check_and_mark_free_block(struct NFTLrecord *nftl, int block) /* get_fold_mark: Read fold mark from Unit Control Information #2, we use FOLD_MARK_IN_PROGRESS * to indicate that we are in the progression of a Virtual Unit Chain folding. If the UCI #2 * is FOLD_MARK_IN_PROGRESS when mounting the NFTL, the (previous) folding process is interrupted - * for some reason. A clean up/check of the VUC is neceressary in this case. + * for some reason. A clean up/check of the VUC is necessary in this case. * * WARNING: return 0 if read error */ @@ -657,7 +657,7 @@ int NFTL_mount(struct NFTLrecord *s) printk("Block %d: incorrect logical block: %d expected: %d\n", block, logical_block, first_logical_block); /* the chain is incorrect : we must format it, - but we need to read it completly */ + but we need to read it completely */ do_format_chain = 1; } if (is_first_block) { @@ -669,7 +669,7 @@ int NFTL_mount(struct NFTLrecord *s) printk("Block %d: incorrectly marked as first block in chain\n", block); /* the chain is incorrect : we must format it, - but we need to read it completly */ + but we need to read it completely */ do_format_chain = 1; } else { printk("Block %d: folding in progress - ignoring first block flag\n", diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index a8befde81ce9..311a9e39a956 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -34,7 +34,7 @@ module_param(debug, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Debug level (0-2)"); -/* ------------------- sysfs attributtes ---------------------------------- */ +/* ------------------- sysfs attributes ---------------------------------- */ struct sm_sysfs_attribute { struct device_attribute dev_attr; char *data; @@ -147,7 +147,7 @@ static int sm_get_lba(uint8_t *lba) /* - * Read LBA asscociated with block + * Read LBA associated with block * returns -1, if block is erased * returns -2 if error happens */ @@ -252,7 +252,7 @@ static int sm_read_sector(struct sm_ftl *ftl, return 0; } - /* User might not need the oob, but we do for data vertification */ + /* User might not need the oob, but we do for data verification */ if (!oob) oob = &tmp_oob; @@ -276,7 +276,7 @@ again: return ret; } - /* Unfortunelly, oob read will _always_ succeed, + /* Unfortunately, oob read will _always_ succeed, despite card removal..... */ ret = mtd->read_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops); @@ -447,14 +447,14 @@ static void sm_mark_block_bad(struct sm_ftl *ftl, int zone, int block) /* We aren't checking the return value, because we don't care */ /* This also fails on fake xD cards, but I guess these won't expose - any bad blocks till fail completly */ + any bad blocks till fail completely */ for (boffset = 0; boffset < ftl->block_size; boffset += SM_SECTOR_SIZE) sm_write_sector(ftl, zone, block, boffset, NULL, &oob); } /* * Erase a block within a zone - * If erase succedes, it updates free block fifo, otherwise marks block as bad + * If erase succeeds, it updates free block fifo, otherwise marks block as bad */ static int sm_erase_block(struct sm_ftl *ftl, int zone_num, uint16_t block, int put_free) @@ -510,7 +510,7 @@ static void sm_erase_callback(struct erase_info *self) complete(&ftl->erase_completion); } -/* Throughtly test that block is valid. */ +/* Thoroughly test that block is valid. */ static int sm_check_block(struct sm_ftl *ftl, int zone, int block) { int boffset; @@ -526,7 +526,7 @@ static int sm_check_block(struct sm_ftl *ftl, int zone, int block) for (boffset = 0; boffset < ftl->block_size; boffset += SM_SECTOR_SIZE) { - /* This shoudn't happen anyway */ + /* This shouldn't happen anyway */ if (sm_read_sector(ftl, zone, block, boffset, NULL, &oob)) return -2; -- cgit v1.2.3 From 4aa10626adbc27dcf2e3462bb82b4963c5545669 Mon Sep 17 00:00:00 2001 From: Jonghwan Choi Date: Thu, 21 Jul 2011 15:33:58 +0900 Subject: mtd: s3c2410 nand: Remove uncessary null check clk_get() return a pointer to the struct clk or an ERR_PTR(). Signed-off-by: Jonghwan Choi Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/s3c2410.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index b0f8e77834fe..868685db6712 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -723,7 +723,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev) /* free the common resources */ - if (info->clk != NULL && !IS_ERR(info->clk)) { + if (!IS_ERR(info->clk)) { s3c2410_nand_clk_set_state(info, CLOCK_DISABLE); clk_put(info->clk); } -- cgit v1.2.3 From f975c6bcb07caacff7fa9904e5d2daa51bcf549d Mon Sep 17 00:00:00 2001 From: Michael Hench Date: Tue, 26 Jul 2011 15:07:42 -0500 Subject: mtd: eLBC NAND: update ecc_stats.corrected when lteccr available Signed-off-by: Michael Hench Acked-by: Scott Wood Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/fsl_elbc_nand.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index acc27ee04749..eedd8ee2c9ac 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -243,6 +243,25 @@ static int fsl_elbc_run_command(struct mtd_info *mtd) return -EIO; } + if (chip->ecc.mode != NAND_ECC_HW) + return 0; + + if (elbc_fcm_ctrl->read_bytes == mtd->writesize + mtd->oobsize) { + uint32_t lteccr = in_be32(&lbc->lteccr); + /* + * if command was a full page read and the ELBC + * has the LTECCR register, then bits 12-15 (ppc order) of + * LTECCR indicates which 512 byte sub-pages had fixed errors. + * bits 28-31 are uncorrectable errors, marked elsewhere. + * for small page nand only 1 bit is used. + * if the ELBC doesn't have the lteccr register it reads 0 + */ + if (lteccr & 0x000F000F) + out_be32(&lbc->lteccr, 0x000F000F); /* clear lteccr */ + if (lteccr & 0x000F0000) + mtd->ecc_stats.corrected++; + } + return 0; } -- cgit v1.2.3 From 38ca6ebc72d59c0c4f52d443c69fc4a17765666a Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 10 Aug 2011 10:14:14 +0200 Subject: mtd: bcm_umi_nand: clean up error handling code Convert error handling code to use gotos. At the same time, this adds calls to kfree and iounmap in a few cases where they were overlooked. Signed-off-by: Julia Lawall Acked-by: Jiandong Zheng Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/bcm_umi_nand.c | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c index a8ae89865a86..46b58d672847 100644 --- a/drivers/mtd/nand/bcm_umi_nand.c +++ b/drivers/mtd/nand/bcm_umi_nand.c @@ -374,16 +374,18 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) - return -ENXIO; + if (!r) { + err = -ENXIO; + goto out_free; + } /* map physical address */ bcm_umi_io_base = ioremap(r->start, resource_size(r)); if (!bcm_umi_io_base) { printk(KERN_ERR "ioremap to access BCM UMI NAND chip failed\n"); - kfree(board_mtd); - return -EIO; + err = -EIO; + goto out_free; } /* Get pointer to private data */ @@ -399,9 +401,8 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) /* Initialize the NAND hardware. */ if (bcm_umi_nand_inithw() < 0) { printk(KERN_ERR "BCM UMI NAND chip could not be initialized\n"); - iounmap(bcm_umi_io_base); - kfree(board_mtd); - return -EIO; + err = -EIO; + goto out_unmap; } /* Set address of NAND IO lines */ @@ -434,7 +435,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) #if USE_DMA err = nand_dma_init(); if (err != 0) - return err; + goto out_unmap; #endif /* Figure out the size of the device that we have. @@ -445,9 +446,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) err = nand_scan_ident(board_mtd, 1, NULL); if (err) { printk(KERN_ERR "nand_scan failed: %d\n", err); - iounmap(bcm_umi_io_base); - kfree(board_mtd); - return err; + goto out_unmap; } /* Now that we know the nand size, we can setup the ECC layout */ @@ -466,7 +465,8 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) { printk(KERN_ERR "NAND - Unrecognized pagesize: %d\n", board_mtd->writesize); - return -EINVAL; + err = -EINVAL; + goto out_unmap; } } @@ -483,9 +483,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) err = nand_scan_tail(board_mtd); if (err) { printk(KERN_ERR "nand_scan failed: %d\n", err); - iounmap(bcm_umi_io_base); - kfree(board_mtd); - return err; + goto out_unmap; } /* Register the partitions */ @@ -494,6 +492,11 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev) /* Return happy */ return 0; +out_unmap: + iounmap(bcm_umi_io_base); +out_free: + kfree(board_mtd); + return err; } static int bcm_umi_nand_remove(struct platform_device *pdev) -- cgit v1.2.3 From c97926dd8d7cc094830b253afc817cbf406c0de7 Mon Sep 17 00:00:00 2001 From: Jason Liu Date: Mon, 22 Aug 2011 14:13:17 +0800 Subject: mtd: mxc_nand: add mx53 NFC driver support This has already been tested with Samsung NAND: K9LAG08U0M on MX53EVK board, ubi/ubifs has already been tested OK too. Signed-off-by: Jason Liu Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mxc_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index ebeb84316ecd..4d4c67763cb0 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -41,7 +41,7 @@ #define nfc_is_v21() (cpu_is_mx25() || cpu_is_mx35()) #define nfc_is_v1() (cpu_is_mx31() || cpu_is_mx27() || cpu_is_mx21()) -#define nfc_is_v3_2() cpu_is_mx51() +#define nfc_is_v3_2() (cpu_is_mx51() || cpu_is_mx53()) #define nfc_is_v3() nfc_is_v3_2() /* Addresses for NFC registers */ -- cgit v1.2.3 From 305b93f180b221789a6213bf3d298c6735102da1 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 23 Aug 2011 17:17:32 -0700 Subject: mtd: do not assume oobsize is power of 2 Previous generations of MTDs all used OOB sizes that were powers of 2, (e.g., 64, 128). However, newer generations of flash, especially NAND, use irregular OOB sizes that are not powers of 2 (e.g., 218, 224, 448). This means we cannot use masks like "mtd->oobsize - 1" to assume that we will get a proper bitmask for OOB operations. These masks are really only intended to hide the "page" portion of the offset, leaving any OOB offset intact, so a masking with the writesize (which *is* always a power of 2) is valid and makes more sense. This has been tested for read/write of NAND devices (nanddump/nandwrite) using nandsim and actual NAND flash. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index a75d55577e49..b20625475132 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -410,7 +410,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, return ret; ops.ooblen = length; - ops.ooboffs = start & (mtd->oobsize - 1); + ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; ops.mode = MTD_OOB_PLACE; @@ -421,7 +421,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, if (IS_ERR(ops.oobbuf)) return PTR_ERR(ops.oobbuf); - start &= ~((uint64_t)mtd->oobsize - 1); + start &= ~((uint64_t)mtd->writesize - 1); ret = mtd->write_oob(mtd, start, &ops); if (ops.oobretlen > 0xFFFFFFFFU) @@ -452,7 +452,7 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, return ret; ops.ooblen = length; - ops.ooboffs = start & (mtd->oobsize - 1); + ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; ops.mode = MTD_OOB_PLACE; @@ -463,7 +463,7 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, if (!ops.oobbuf) return -ENOMEM; - start &= ~((uint64_t)mtd->oobsize - 1); + start &= ~((uint64_t)mtd->writesize - 1); ret = mtd->read_oob(mtd, start, &ops); if (put_user(ops.oobretlen, retp)) -- cgit v1.2.3 From 4d523b60ef9d1953d9e12745ca0ed3e2dc98c189 Mon Sep 17 00:00:00 2001 From: Jason Liu Date: Wed, 24 Aug 2011 19:26:28 +0800 Subject: mtd: check parts pointer before using it The code has the check for parts but it called after kmemdup, kmemdup(parts, sizeof(*parts) * nr_parts,...) if (!parts) return -ENOMEM In fact, we need check parts before safely using it. and we also need check the real_parts to make sure kmemdup allocation sucessfully. Signed-off-by: Jason Liu Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdcore.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 09bdbac51868..b01993ea260e 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -465,12 +465,13 @@ int mtd_device_parse_register(struct mtd_info *mtd, const char **types, struct mtd_partition *real_parts; err = parse_mtd_partitions(mtd, types, &real_parts, parser_data); - if (err <= 0 && nr_parts) { + if (err <= 0 && nr_parts && parts) { real_parts = kmemdup(parts, sizeof(*parts) * nr_parts, GFP_KERNEL); - err = nr_parts; - if (!parts) + if (!real_parts) err = -ENOMEM; + else + err = nr_parts; } if (err > 0) { -- cgit v1.2.3 From 45dfc1a09a35963234a50617c0700f7eb2b3b9c2 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Thu, 8 Sep 2011 10:47:10 +0800 Subject: mtd: add helper functions library and header files for GPMI NAND driver bch-regs.h : registers file for BCH module gpmi-regs.h: registers file for GPMI module gpmi-lib.c: helper functions library. Signed-off-by: Huang Shijie Acked-by: Marek Vasut Tested-by: Koen Beel Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpmi-nand/bch-regs.h | 84 +++ drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 1057 ++++++++++++++++++++++++++++++++ drivers/mtd/nand/gpmi-nand/gpmi-regs.h | 172 ++++++ 3 files changed, 1313 insertions(+) create mode 100644 drivers/mtd/nand/gpmi-nand/bch-regs.h create mode 100644 drivers/mtd/nand/gpmi-nand/gpmi-lib.c create mode 100644 drivers/mtd/nand/gpmi-nand/gpmi-regs.h (limited to 'drivers') diff --git a/drivers/mtd/nand/gpmi-nand/bch-regs.h b/drivers/mtd/nand/gpmi-nand/bch-regs.h new file mode 100644 index 000000000000..4effb8c579db --- /dev/null +++ b/drivers/mtd/nand/gpmi-nand/bch-regs.h @@ -0,0 +1,84 @@ +/* + * Freescale GPMI NAND Flash Driver + * + * Copyright 2008-2011 Freescale Semiconductor, Inc. + * Copyright 2008 Embedded Alley Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#ifndef __GPMI_NAND_BCH_REGS_H +#define __GPMI_NAND_BCH_REGS_H + +#define HW_BCH_CTRL 0x00000000 +#define HW_BCH_CTRL_SET 0x00000004 +#define HW_BCH_CTRL_CLR 0x00000008 +#define HW_BCH_CTRL_TOG 0x0000000c + +#define BM_BCH_CTRL_COMPLETE_IRQ_EN (1 << 8) +#define BM_BCH_CTRL_COMPLETE_IRQ (1 << 0) + +#define HW_BCH_STATUS0 0x00000010 +#define HW_BCH_MODE 0x00000020 +#define HW_BCH_ENCODEPTR 0x00000030 +#define HW_BCH_DATAPTR 0x00000040 +#define HW_BCH_METAPTR 0x00000050 +#define HW_BCH_LAYOUTSELECT 0x00000070 + +#define HW_BCH_FLASH0LAYOUT0 0x00000080 + +#define BP_BCH_FLASH0LAYOUT0_NBLOCKS 24 +#define BM_BCH_FLASH0LAYOUT0_NBLOCKS (0xff << BP_BCH_FLASH0LAYOUT0_NBLOCKS) +#define BF_BCH_FLASH0LAYOUT0_NBLOCKS(v) \ + (((v) << BP_BCH_FLASH0LAYOUT0_NBLOCKS) & BM_BCH_FLASH0LAYOUT0_NBLOCKS) + +#define BP_BCH_FLASH0LAYOUT0_META_SIZE 16 +#define BM_BCH_FLASH0LAYOUT0_META_SIZE (0xff << BP_BCH_FLASH0LAYOUT0_META_SIZE) +#define BF_BCH_FLASH0LAYOUT0_META_SIZE(v) \ + (((v) << BP_BCH_FLASH0LAYOUT0_META_SIZE)\ + & BM_BCH_FLASH0LAYOUT0_META_SIZE) + +#define BP_BCH_FLASH0LAYOUT0_ECC0 12 +#define BM_BCH_FLASH0LAYOUT0_ECC0 (0xf << BP_BCH_FLASH0LAYOUT0_ECC0) +#define BF_BCH_FLASH0LAYOUT0_ECC0(v) \ + (((v) << BP_BCH_FLASH0LAYOUT0_ECC0) & BM_BCH_FLASH0LAYOUT0_ECC0) + +#define BP_BCH_FLASH0LAYOUT0_DATA0_SIZE 0 +#define BM_BCH_FLASH0LAYOUT0_DATA0_SIZE \ + (0xfff << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE) +#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v) \ + (((v) << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)\ + & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE) + +#define HW_BCH_FLASH0LAYOUT1 0x00000090 + +#define BP_BCH_FLASH0LAYOUT1_PAGE_SIZE 16 +#define BM_BCH_FLASH0LAYOUT1_PAGE_SIZE \ + (0xffff << BP_BCH_FLASH0LAYOUT1_PAGE_SIZE) +#define BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(v) \ + (((v) << BP_BCH_FLASH0LAYOUT1_PAGE_SIZE) \ + & BM_BCH_FLASH0LAYOUT1_PAGE_SIZE) + +#define BP_BCH_FLASH0LAYOUT1_ECCN 12 +#define BM_BCH_FLASH0LAYOUT1_ECCN (0xf << BP_BCH_FLASH0LAYOUT1_ECCN) +#define BF_BCH_FLASH0LAYOUT1_ECCN(v) \ + (((v) << BP_BCH_FLASH0LAYOUT1_ECCN) & BM_BCH_FLASH0LAYOUT1_ECCN) + +#define BP_BCH_FLASH0LAYOUT1_DATAN_SIZE 0 +#define BM_BCH_FLASH0LAYOUT1_DATAN_SIZE \ + (0xfff << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE) +#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v) \ + (((v) << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE) \ + & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE) +#endif diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c new file mode 100644 index 000000000000..de4db7604a3f --- /dev/null +++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c @@ -0,0 +1,1057 @@ +/* + * Freescale GPMI NAND Flash Driver + * + * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. + * Copyright (C) 2008 Embedded Alley Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#include +#include +#include +#include + +#include "gpmi-nand.h" +#include "gpmi-regs.h" +#include "bch-regs.h" + +struct timing_threshod timing_default_threshold = { + .max_data_setup_cycles = (BM_GPMI_TIMING0_DATA_SETUP >> + BP_GPMI_TIMING0_DATA_SETUP), + .internal_data_setup_in_ns = 0, + .max_sample_delay_factor = (BM_GPMI_CTRL1_RDN_DELAY >> + BP_GPMI_CTRL1_RDN_DELAY), + .max_dll_clock_period_in_ns = 32, + .max_dll_delay_in_ns = 16, +}; + +/* + * Clear the bit and poll it cleared. This is usually called with + * a reset address and mask being either SFTRST(bit 31) or CLKGATE + * (bit 30). + */ +static int clear_poll_bit(void __iomem *addr, u32 mask) +{ + int timeout = 0x400; + + /* clear the bit */ + __mxs_clrl(mask, addr); + + /* + * SFTRST needs 3 GPMI clocks to settle, the reference manual + * recommends to wait 1us. + */ + udelay(1); + + /* poll the bit becoming clear */ + while ((readl(addr) & mask) && --timeout) + /* nothing */; + + return !timeout; +} + +#define MODULE_CLKGATE (1 << 30) +#define MODULE_SFTRST (1 << 31) +/* + * The current mxs_reset_block() will do two things: + * [1] enable the module. + * [2] reset the module. + * + * In most of the cases, it's ok. But there is a hardware bug in the BCH block. + * If you try to soft reset the BCH block, it becomes unusable until + * the next hard reset. This case occurs in the NAND boot mode. When the board + * boots by NAND, the ROM of the chip will initialize the BCH blocks itself. + * So If the driver tries to reset the BCH again, the BCH will not work anymore. + * You will see a DMA timeout in this case. + * + * To avoid this bug, just add a new parameter `just_enable` for + * the mxs_reset_block(), and rewrite it here. + */ +int gpmi_reset_block(void __iomem *reset_addr, bool just_enable) +{ + int ret; + int timeout = 0x400; + + /* clear and poll SFTRST */ + ret = clear_poll_bit(reset_addr, MODULE_SFTRST); + if (unlikely(ret)) + goto error; + + /* clear CLKGATE */ + __mxs_clrl(MODULE_CLKGATE, reset_addr); + + if (!just_enable) { + /* set SFTRST to reset the block */ + __mxs_setl(MODULE_SFTRST, reset_addr); + udelay(1); + + /* poll CLKGATE becoming set */ + while ((!(readl(reset_addr) & MODULE_CLKGATE)) && --timeout) + /* nothing */; + if (unlikely(!timeout)) + goto error; + } + + /* clear and poll SFTRST */ + ret = clear_poll_bit(reset_addr, MODULE_SFTRST); + if (unlikely(ret)) + goto error; + + /* clear and poll CLKGATE */ + ret = clear_poll_bit(reset_addr, MODULE_CLKGATE); + if (unlikely(ret)) + goto error; + + return 0; + +error: + pr_err("%s(%p): module reset timeout\n", __func__, reset_addr); + return -ETIMEDOUT; +} + +int gpmi_init(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + int ret; + + ret = clk_enable(r->clock); + if (ret) + goto err_out; + ret = gpmi_reset_block(r->gpmi_regs, false); + if (ret) + goto err_out; + + /* Choose NAND mode. */ + writel(BM_GPMI_CTRL1_GPMI_MODE, r->gpmi_regs + HW_GPMI_CTRL1_CLR); + + /* Set the IRQ polarity. */ + writel(BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY, + r->gpmi_regs + HW_GPMI_CTRL1_SET); + + /* Disable Write-Protection. */ + writel(BM_GPMI_CTRL1_DEV_RESET, r->gpmi_regs + HW_GPMI_CTRL1_SET); + + /* Select BCH ECC. */ + writel(BM_GPMI_CTRL1_BCH_MODE, r->gpmi_regs + HW_GPMI_CTRL1_SET); + + clk_disable(r->clock); + return 0; +err_out: + return ret; +} + +/* This function is very useful. It is called only when the bug occur. */ +void gpmi_dump_info(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + struct bch_geometry *geo = &this->bch_geometry; + u32 reg; + int i; + + pr_err("Show GPMI registers :\n"); + for (i = 0; i <= HW_GPMI_DEBUG / 0x10 + 1; i++) { + reg = readl(r->gpmi_regs + i * 0x10); + pr_err("offset 0x%.3x : 0x%.8x\n", i * 0x10, reg); + } + + /* start to print out the BCH info */ + pr_err("BCH Geometry :\n"); + pr_err("GF length : %u\n", geo->gf_len); + pr_err("ECC Strength : %u\n", geo->ecc_strength); + pr_err("Page Size in Bytes : %u\n", geo->page_size); + pr_err("Metadata Size in Bytes : %u\n", geo->metadata_size); + pr_err("ECC Chunk Size in Bytes: %u\n", geo->ecc_chunk_size); + pr_err("ECC Chunk Count : %u\n", geo->ecc_chunk_count); + pr_err("Payload Size in Bytes : %u\n", geo->payload_size); + pr_err("Auxiliary Size in Bytes: %u\n", geo->auxiliary_size); + pr_err("Auxiliary Status Offset: %u\n", geo->auxiliary_status_offset); + pr_err("Block Mark Byte Offset : %u\n", geo->block_mark_byte_offset); + pr_err("Block Mark Bit Offset : %u\n", geo->block_mark_bit_offset); +} + +/* Configures the geometry for BCH. */ +int bch_set_geometry(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + struct bch_geometry *bch_geo = &this->bch_geometry; + unsigned int block_count; + unsigned int block_size; + unsigned int metadata_size; + unsigned int ecc_strength; + unsigned int page_size; + int ret; + + if (common_nfc_set_geometry(this)) + return !0; + + block_count = bch_geo->ecc_chunk_count - 1; + block_size = bch_geo->ecc_chunk_size; + metadata_size = bch_geo->metadata_size; + ecc_strength = bch_geo->ecc_strength >> 1; + page_size = bch_geo->page_size; + + ret = clk_enable(r->clock); + if (ret) + goto err_out; + + ret = gpmi_reset_block(r->bch_regs, true); + if (ret) + goto err_out; + + /* Configure layout 0. */ + writel(BF_BCH_FLASH0LAYOUT0_NBLOCKS(block_count) + | BF_BCH_FLASH0LAYOUT0_META_SIZE(metadata_size) + | BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength) + | BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size), + r->bch_regs + HW_BCH_FLASH0LAYOUT0); + + writel(BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(page_size) + | BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength) + | BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size), + r->bch_regs + HW_BCH_FLASH0LAYOUT1); + + /* Set *all* chip selects to use layout 0. */ + writel(0, r->bch_regs + HW_BCH_LAYOUTSELECT); + + /* Enable interrupts. */ + writel(BM_BCH_CTRL_COMPLETE_IRQ_EN, + r->bch_regs + HW_BCH_CTRL_SET); + + clk_disable(r->clock); + return 0; +err_out: + return ret; +} + +/* Converts time in nanoseconds to cycles. */ +static unsigned int ns_to_cycles(unsigned int time, + unsigned int period, unsigned int min) +{ + unsigned int k; + + k = (time + period - 1) / period; + return max(k, min); +} + +/* Apply timing to current hardware conditions. */ +static int gpmi_nfc_compute_hardware_timing(struct gpmi_nand_data *this, + struct gpmi_nfc_hardware_timing *hw) +{ + struct gpmi_nand_platform_data *pdata = this->pdata; + struct timing_threshod *nfc = &timing_default_threshold; + struct nand_chip *nand = &this->nand; + struct nand_timing target = this->timing; + bool improved_timing_is_available; + unsigned long clock_frequency_in_hz; + unsigned int clock_period_in_ns; + bool dll_use_half_periods; + unsigned int dll_delay_shift; + unsigned int max_sample_delay_in_ns; + unsigned int address_setup_in_cycles; + unsigned int data_setup_in_ns; + unsigned int data_setup_in_cycles; + unsigned int data_hold_in_cycles; + int ideal_sample_delay_in_ns; + unsigned int sample_delay_factor; + int tEYE; + unsigned int min_prop_delay_in_ns = pdata->min_prop_delay_in_ns; + unsigned int max_prop_delay_in_ns = pdata->max_prop_delay_in_ns; + + /* + * If there are multiple chips, we need to relax the timings to allow + * for signal distortion due to higher capacitance. + */ + if (nand->numchips > 2) { + target.data_setup_in_ns += 10; + target.data_hold_in_ns += 10; + target.address_setup_in_ns += 10; + } else if (nand->numchips > 1) { + target.data_setup_in_ns += 5; + target.data_hold_in_ns += 5; + target.address_setup_in_ns += 5; + } + + /* Check if improved timing information is available. */ + improved_timing_is_available = + (target.tREA_in_ns >= 0) && + (target.tRLOH_in_ns >= 0) && + (target.tRHOH_in_ns >= 0) ; + + /* Inspect the clock. */ + clock_frequency_in_hz = nfc->clock_frequency_in_hz; + clock_period_in_ns = 1000000000 / clock_frequency_in_hz; + + /* + * The NFC quantizes setup and hold parameters in terms of clock cycles. + * Here, we quantize the setup and hold timing parameters to the + * next-highest clock period to make sure we apply at least the + * specified times. + * + * For data setup and data hold, the hardware interprets a value of zero + * as the largest possible delay. This is not what's intended by a zero + * in the input parameter, so we impose a minimum of one cycle. + */ + data_setup_in_cycles = ns_to_cycles(target.data_setup_in_ns, + clock_period_in_ns, 1); + data_hold_in_cycles = ns_to_cycles(target.data_hold_in_ns, + clock_period_in_ns, 1); + address_setup_in_cycles = ns_to_cycles(target.address_setup_in_ns, + clock_period_in_ns, 0); + + /* + * The clock's period affects the sample delay in a number of ways: + * + * (1) The NFC HAL tells us the maximum clock period the sample delay + * DLL can tolerate. If the clock period is greater than half that + * maximum, we must configure the DLL to be driven by half periods. + * + * (2) We need to convert from an ideal sample delay, in ns, to a + * "sample delay factor," which the NFC uses. This factor depends on + * whether we're driving the DLL with full or half periods. + * Paraphrasing the reference manual: + * + * AD = SDF x 0.125 x RP + * + * where: + * + * AD is the applied delay, in ns. + * SDF is the sample delay factor, which is dimensionless. + * RP is the reference period, in ns, which is a full clock period + * if the DLL is being driven by full periods, or half that if + * the DLL is being driven by half periods. + * + * Let's re-arrange this in a way that's more useful to us: + * + * 8 + * SDF = AD x ---- + * RP + * + * The reference period is either the clock period or half that, so this + * is: + * + * 8 AD x DDF + * SDF = AD x ----- = -------- + * f x P P + * + * where: + * + * f is 1 or 1/2, depending on how we're driving the DLL. + * P is the clock period. + * DDF is the DLL Delay Factor, a dimensionless value that + * incorporates all the constants in the conversion. + * + * DDF will be either 8 or 16, both of which are powers of two. We can + * reduce the cost of this conversion by using bit shifts instead of + * multiplication or division. Thus: + * + * AD << DDS + * SDF = --------- + * P + * + * or + * + * AD = (SDF >> DDS) x P + * + * where: + * + * DDS is the DLL Delay Shift, the logarithm to base 2 of the DDF. + */ + if (clock_period_in_ns > (nfc->max_dll_clock_period_in_ns >> 1)) { + dll_use_half_periods = true; + dll_delay_shift = 3 + 1; + } else { + dll_use_half_periods = false; + dll_delay_shift = 3; + } + + /* + * Compute the maximum sample delay the NFC allows, under current + * conditions. If the clock is running too slowly, no sample delay is + * possible. + */ + if (clock_period_in_ns > nfc->max_dll_clock_period_in_ns) + max_sample_delay_in_ns = 0; + else { + /* + * Compute the delay implied by the largest sample delay factor + * the NFC allows. + */ + max_sample_delay_in_ns = + (nfc->max_sample_delay_factor * clock_period_in_ns) >> + dll_delay_shift; + + /* + * Check if the implied sample delay larger than the NFC + * actually allows. + */ + if (max_sample_delay_in_ns > nfc->max_dll_delay_in_ns) + max_sample_delay_in_ns = nfc->max_dll_delay_in_ns; + } + + /* + * Check if improved timing information is available. If not, we have to + * use a less-sophisticated algorithm. + */ + if (!improved_timing_is_available) { + /* + * Fold the read setup time required by the NFC into the ideal + * sample delay. + */ + ideal_sample_delay_in_ns = target.gpmi_sample_delay_in_ns + + nfc->internal_data_setup_in_ns; + + /* + * The ideal sample delay may be greater than the maximum + * allowed by the NFC. If so, we can trade off sample delay time + * for more data setup time. + * + * In each iteration of the following loop, we add a cycle to + * the data setup time and subtract a corresponding amount from + * the sample delay until we've satisified the constraints or + * can't do any better. + */ + while ((ideal_sample_delay_in_ns > max_sample_delay_in_ns) && + (data_setup_in_cycles < nfc->max_data_setup_cycles)) { + + data_setup_in_cycles++; + ideal_sample_delay_in_ns -= clock_period_in_ns; + + if (ideal_sample_delay_in_ns < 0) + ideal_sample_delay_in_ns = 0; + + } + + /* + * Compute the sample delay factor that corresponds most closely + * to the ideal sample delay. If the result is too large for the + * NFC, use the maximum value. + * + * Notice that we use the ns_to_cycles function to compute the + * sample delay factor. We do this because the form of the + * computation is the same as that for calculating cycles. + */ + sample_delay_factor = + ns_to_cycles( + ideal_sample_delay_in_ns << dll_delay_shift, + clock_period_in_ns, 0); + + if (sample_delay_factor > nfc->max_sample_delay_factor) + sample_delay_factor = nfc->max_sample_delay_factor; + + /* Skip to the part where we return our results. */ + goto return_results; + } + + /* + * If control arrives here, we have more detailed timing information, + * so we can use a better algorithm. + */ + + /* + * Fold the read setup time required by the NFC into the maximum + * propagation delay. + */ + max_prop_delay_in_ns += nfc->internal_data_setup_in_ns; + + /* + * Earlier, we computed the number of clock cycles required to satisfy + * the data setup time. Now, we need to know the actual nanoseconds. + */ + data_setup_in_ns = clock_period_in_ns * data_setup_in_cycles; + + /* + * Compute tEYE, the width of the data eye when reading from the NAND + * Flash. The eye width is fundamentally determined by the data setup + * time, perturbed by propagation delays and some characteristics of the + * NAND Flash device. + * + * start of the eye = max_prop_delay + tREA + * end of the eye = min_prop_delay + tRHOH + data_setup + */ + tEYE = (int)min_prop_delay_in_ns + (int)target.tRHOH_in_ns + + (int)data_setup_in_ns; + + tEYE -= (int)max_prop_delay_in_ns + (int)target.tREA_in_ns; + + /* + * The eye must be open. If it's not, we can try to open it by + * increasing its main forcer, the data setup time. + * + * In each iteration of the following loop, we increase the data setup + * time by a single clock cycle. We do this until either the eye is + * open or we run into NFC limits. + */ + while ((tEYE <= 0) && + (data_setup_in_cycles < nfc->max_data_setup_cycles)) { + /* Give a cycle to data setup. */ + data_setup_in_cycles++; + /* Synchronize the data setup time with the cycles. */ + data_setup_in_ns += clock_period_in_ns; + /* Adjust tEYE accordingly. */ + tEYE += clock_period_in_ns; + } + + /* + * When control arrives here, the eye is open. The ideal time to sample + * the data is in the center of the eye: + * + * end of the eye + start of the eye + * --------------------------------- - data_setup + * 2 + * + * After some algebra, this simplifies to the code immediately below. + */ + ideal_sample_delay_in_ns = + ((int)max_prop_delay_in_ns + + (int)target.tREA_in_ns + + (int)min_prop_delay_in_ns + + (int)target.tRHOH_in_ns - + (int)data_setup_in_ns) >> 1; + + /* + * The following figure illustrates some aspects of a NAND Flash read: + * + * + * __ _____________________________________ + * RDN \_________________/ + * + * <---- tEYE -----> + * /-----------------\ + * Read Data ----------------------------< >--------- + * \-----------------/ + * ^ ^ ^ ^ + * | | | | + * |<--Data Setup -->|<--Delay Time -->| | + * | | | | + * | | | + * | |<-- Quantized Delay Time -->| + * | | | + * + * + * We have some issues we must now address: + * + * (1) The *ideal* sample delay time must not be negative. If it is, we + * jam it to zero. + * + * (2) The *ideal* sample delay time must not be greater than that + * allowed by the NFC. If it is, we can increase the data setup + * time, which will reduce the delay between the end of the data + * setup and the center of the eye. It will also make the eye + * larger, which might help with the next issue... + * + * (3) The *quantized* sample delay time must not fall either before the + * eye opens or after it closes (the latter is the problem + * illustrated in the above figure). + */ + + /* Jam a negative ideal sample delay to zero. */ + if (ideal_sample_delay_in_ns < 0) + ideal_sample_delay_in_ns = 0; + + /* + * Extend the data setup as needed to reduce the ideal sample delay + * below the maximum permitted by the NFC. + */ + while ((ideal_sample_delay_in_ns > max_sample_delay_in_ns) && + (data_setup_in_cycles < nfc->max_data_setup_cycles)) { + + /* Give a cycle to data setup. */ + data_setup_in_cycles++; + /* Synchronize the data setup time with the cycles. */ + data_setup_in_ns += clock_period_in_ns; + /* Adjust tEYE accordingly. */ + tEYE += clock_period_in_ns; + + /* + * Decrease the ideal sample delay by one half cycle, to keep it + * in the middle of the eye. + */ + ideal_sample_delay_in_ns -= (clock_period_in_ns >> 1); + + /* Jam a negative ideal sample delay to zero. */ + if (ideal_sample_delay_in_ns < 0) + ideal_sample_delay_in_ns = 0; + } + + /* + * Compute the sample delay factor that corresponds to the ideal sample + * delay. If the result is too large, then use the maximum allowed + * value. + * + * Notice that we use the ns_to_cycles function to compute the sample + * delay factor. We do this because the form of the computation is the + * same as that for calculating cycles. + */ + sample_delay_factor = + ns_to_cycles(ideal_sample_delay_in_ns << dll_delay_shift, + clock_period_in_ns, 0); + + if (sample_delay_factor > nfc->max_sample_delay_factor) + sample_delay_factor = nfc->max_sample_delay_factor; + + /* + * These macros conveniently encapsulate a computation we'll use to + * continuously evaluate whether or not the data sample delay is inside + * the eye. + */ + #define IDEAL_DELAY ((int) ideal_sample_delay_in_ns) + + #define QUANTIZED_DELAY \ + ((int) ((sample_delay_factor * clock_period_in_ns) >> \ + dll_delay_shift)) + + #define DELAY_ERROR (abs(QUANTIZED_DELAY - IDEAL_DELAY)) + + #define SAMPLE_IS_NOT_WITHIN_THE_EYE (DELAY_ERROR > (tEYE >> 1)) + + /* + * While the quantized sample time falls outside the eye, reduce the + * sample delay or extend the data setup to move the sampling point back + * toward the eye. Do not allow the number of data setup cycles to + * exceed the maximum allowed by the NFC. + */ + while (SAMPLE_IS_NOT_WITHIN_THE_EYE && + (data_setup_in_cycles < nfc->max_data_setup_cycles)) { + /* + * If control arrives here, the quantized sample delay falls + * outside the eye. Check if it's before the eye opens, or after + * the eye closes. + */ + if (QUANTIZED_DELAY > IDEAL_DELAY) { + /* + * If control arrives here, the quantized sample delay + * falls after the eye closes. Decrease the quantized + * delay time and then go back to re-evaluate. + */ + if (sample_delay_factor != 0) + sample_delay_factor--; + continue; + } + + /* + * If control arrives here, the quantized sample delay falls + * before the eye opens. Shift the sample point by increasing + * data setup time. This will also make the eye larger. + */ + + /* Give a cycle to data setup. */ + data_setup_in_cycles++; + /* Synchronize the data setup time with the cycles. */ + data_setup_in_ns += clock_period_in_ns; + /* Adjust tEYE accordingly. */ + tEYE += clock_period_in_ns; + + /* + * Decrease the ideal sample delay by one half cycle, to keep it + * in the middle of the eye. + */ + ideal_sample_delay_in_ns -= (clock_period_in_ns >> 1); + + /* ...and one less period for the delay time. */ + ideal_sample_delay_in_ns -= clock_period_in_ns; + + /* Jam a negative ideal sample delay to zero. */ + if (ideal_sample_delay_in_ns < 0) + ideal_sample_delay_in_ns = 0; + + /* + * We have a new ideal sample delay, so re-compute the quantized + * delay. + */ + sample_delay_factor = + ns_to_cycles( + ideal_sample_delay_in_ns << dll_delay_shift, + clock_period_in_ns, 0); + + if (sample_delay_factor > nfc->max_sample_delay_factor) + sample_delay_factor = nfc->max_sample_delay_factor; + } + + /* Control arrives here when we're ready to return our results. */ +return_results: + hw->data_setup_in_cycles = data_setup_in_cycles; + hw->data_hold_in_cycles = data_hold_in_cycles; + hw->address_setup_in_cycles = address_setup_in_cycles; + hw->use_half_periods = dll_use_half_periods; + hw->sample_delay_factor = sample_delay_factor; + + /* Return success. */ + return 0; +} + +/* Begin the I/O */ +void gpmi_begin(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + struct timing_threshod *nfc = &timing_default_threshold; + unsigned char *gpmi_regs = r->gpmi_regs; + unsigned int clock_period_in_ns; + uint32_t reg; + unsigned int dll_wait_time_in_us; + struct gpmi_nfc_hardware_timing hw; + int ret; + + /* Enable the clock. */ + ret = clk_enable(r->clock); + if (ret) { + pr_err("We failed in enable the clk\n"); + goto err_out; + } + + /* set ready/busy timeout */ + writel(0x500 << BP_GPMI_TIMING1_BUSY_TIMEOUT, + gpmi_regs + HW_GPMI_TIMING1); + + /* Get the timing information we need. */ + nfc->clock_frequency_in_hz = clk_get_rate(r->clock); + clock_period_in_ns = 1000000000 / nfc->clock_frequency_in_hz; + + gpmi_nfc_compute_hardware_timing(this, &hw); + + /* Set up all the simple timing parameters. */ + reg = BF_GPMI_TIMING0_ADDRESS_SETUP(hw.address_setup_in_cycles) | + BF_GPMI_TIMING0_DATA_HOLD(hw.data_hold_in_cycles) | + BF_GPMI_TIMING0_DATA_SETUP(hw.data_setup_in_cycles) ; + + writel(reg, gpmi_regs + HW_GPMI_TIMING0); + + /* + * DLL_ENABLE must be set to 0 when setting RDN_DELAY or HALF_PERIOD. + */ + writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_CLR); + + /* Clear out the DLL control fields. */ + writel(BM_GPMI_CTRL1_RDN_DELAY, gpmi_regs + HW_GPMI_CTRL1_CLR); + writel(BM_GPMI_CTRL1_HALF_PERIOD, gpmi_regs + HW_GPMI_CTRL1_CLR); + + /* If no sample delay is called for, return immediately. */ + if (!hw.sample_delay_factor) + return; + + /* Configure the HALF_PERIOD flag. */ + if (hw.use_half_periods) + writel(BM_GPMI_CTRL1_HALF_PERIOD, + gpmi_regs + HW_GPMI_CTRL1_SET); + + /* Set the delay factor. */ + writel(BF_GPMI_CTRL1_RDN_DELAY(hw.sample_delay_factor), + gpmi_regs + HW_GPMI_CTRL1_SET); + + /* Enable the DLL. */ + writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_SET); + + /* + * After we enable the GPMI DLL, we have to wait 64 clock cycles before + * we can use the GPMI. + * + * Calculate the amount of time we need to wait, in microseconds. + */ + dll_wait_time_in_us = (clock_period_in_ns * 64) / 1000; + + if (!dll_wait_time_in_us) + dll_wait_time_in_us = 1; + + /* Wait for the DLL to settle. */ + udelay(dll_wait_time_in_us); + +err_out: + return; +} + +void gpmi_end(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + clk_disable(r->clock); +} + +/* Clears a BCH interrupt. */ +void gpmi_clear_bch(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + writel(BM_BCH_CTRL_COMPLETE_IRQ, r->bch_regs + HW_BCH_CTRL_CLR); +} + +/* Returns the Ready/Busy status of the given chip. */ +int gpmi_is_ready(struct gpmi_nand_data *this, unsigned chip) +{ + struct resources *r = &this->resources; + uint32_t mask = 0; + uint32_t reg = 0; + + if (GPMI_IS_MX23(this)) { + mask = MX23_BM_GPMI_DEBUG_READY0 << chip; + reg = readl(r->gpmi_regs + HW_GPMI_DEBUG); + } else if (GPMI_IS_MX28(this)) { + mask = MX28_BF_GPMI_STAT_READY_BUSY(1 << chip); + reg = readl(r->gpmi_regs + HW_GPMI_STAT); + } else + pr_err("unknow arch.\n"); + return reg & mask; +} + +static inline void set_dma_type(struct gpmi_nand_data *this, + enum dma_ops_type type) +{ + this->last_dma_type = this->dma_type; + this->dma_type = type; +} + +int gpmi_send_command(struct gpmi_nand_data *this) +{ + struct dma_chan *channel = get_dma_chan(this); + struct dma_async_tx_descriptor *desc; + struct scatterlist *sgl; + int chip = this->current_chip; + u32 pio[3]; + + /* [1] send out the PIO words */ + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(BV_GPMI_CTRL0_COMMAND_MODE__WRITE) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(BV_GPMI_CTRL0_ADDRESS__NAND_CLE) + | BM_GPMI_CTRL0_ADDRESS_INCREMENT + | BF_GPMI_CTRL0_XFER_COUNT(this->command_length); + pio[1] = pio[2] = 0; + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, + ARRAY_SIZE(pio), DMA_NONE, 0); + if (!desc) { + pr_err("step 1 error\n"); + return -1; + } + + /* [2] send out the COMMAND + ADDRESS string stored in @buffer */ + sgl = &this->cmd_sgl; + + sg_init_one(sgl, this->cmd_buffer, this->command_length); + dma_map_sg(this->dev, sgl, 1, DMA_TO_DEVICE); + desc = channel->device->device_prep_slave_sg(channel, + sgl, 1, DMA_TO_DEVICE, 1); + if (!desc) { + pr_err("step 2 error\n"); + return -1; + } + + /* [3] submit the DMA */ + set_dma_type(this, DMA_FOR_COMMAND); + return start_dma_without_bch_irq(this, desc); +} + +int gpmi_send_data(struct gpmi_nand_data *this) +{ + struct dma_async_tx_descriptor *desc; + struct dma_chan *channel = get_dma_chan(this); + int chip = this->current_chip; + uint32_t command_mode; + uint32_t address; + u32 pio[2]; + + /* [1] PIO */ + command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE; + address = BV_GPMI_CTRL0_ADDRESS__NAND_DATA; + + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(address) + | BF_GPMI_CTRL0_XFER_COUNT(this->upper_len); + pio[1] = 0; + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, + ARRAY_SIZE(pio), DMA_NONE, 0); + if (!desc) { + pr_err("step 1 error\n"); + return -1; + } + + /* [2] send DMA request */ + prepare_data_dma(this, DMA_TO_DEVICE); + desc = channel->device->device_prep_slave_sg(channel, &this->data_sgl, + 1, DMA_TO_DEVICE, 1); + if (!desc) { + pr_err("step 2 error\n"); + return -1; + } + /* [3] submit the DMA */ + set_dma_type(this, DMA_FOR_WRITE_DATA); + return start_dma_without_bch_irq(this, desc); +} + +int gpmi_read_data(struct gpmi_nand_data *this) +{ + struct dma_async_tx_descriptor *desc; + struct dma_chan *channel = get_dma_chan(this); + int chip = this->current_chip; + u32 pio[2]; + + /* [1] : send PIO */ + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(BV_GPMI_CTRL0_COMMAND_MODE__READ) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(BV_GPMI_CTRL0_ADDRESS__NAND_DATA) + | BF_GPMI_CTRL0_XFER_COUNT(this->upper_len); + pio[1] = 0; + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, + ARRAY_SIZE(pio), DMA_NONE, 0); + if (!desc) { + pr_err("step 1 error\n"); + return -1; + } + + /* [2] : send DMA request */ + prepare_data_dma(this, DMA_FROM_DEVICE); + desc = channel->device->device_prep_slave_sg(channel, &this->data_sgl, + 1, DMA_FROM_DEVICE, 1); + if (!desc) { + pr_err("step 2 error\n"); + return -1; + } + + /* [3] : submit the DMA */ + set_dma_type(this, DMA_FOR_READ_DATA); + return start_dma_without_bch_irq(this, desc); +} + +int gpmi_send_page(struct gpmi_nand_data *this, + dma_addr_t payload, dma_addr_t auxiliary) +{ + struct bch_geometry *geo = &this->bch_geometry; + uint32_t command_mode; + uint32_t address; + uint32_t ecc_command; + uint32_t buffer_mask; + struct dma_async_tx_descriptor *desc; + struct dma_chan *channel = get_dma_chan(this); + int chip = this->current_chip; + u32 pio[6]; + + /* A DMA descriptor that does an ECC page read. */ + command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE; + address = BV_GPMI_CTRL0_ADDRESS__NAND_DATA; + ecc_command = BV_GPMI_ECCCTRL_ECC_CMD__BCH_ENCODE; + buffer_mask = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE | + BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY; + + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(address) + | BF_GPMI_CTRL0_XFER_COUNT(0); + pio[1] = 0; + pio[2] = BM_GPMI_ECCCTRL_ENABLE_ECC + | BF_GPMI_ECCCTRL_ECC_CMD(ecc_command) + | BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask); + pio[3] = geo->page_size; + pio[4] = payload; + pio[5] = auxiliary; + + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, + ARRAY_SIZE(pio), DMA_NONE, 0); + if (!desc) { + pr_err("step 2 error\n"); + return -1; + } + set_dma_type(this, DMA_FOR_WRITE_ECC_PAGE); + return start_dma_with_bch_irq(this, desc); +} + +int gpmi_read_page(struct gpmi_nand_data *this, + dma_addr_t payload, dma_addr_t auxiliary) +{ + struct bch_geometry *geo = &this->bch_geometry; + uint32_t command_mode; + uint32_t address; + uint32_t ecc_command; + uint32_t buffer_mask; + struct dma_async_tx_descriptor *desc; + struct dma_chan *channel = get_dma_chan(this); + int chip = this->current_chip; + u32 pio[6]; + + /* [1] Wait for the chip to report ready. */ + command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY; + address = BV_GPMI_CTRL0_ADDRESS__NAND_DATA; + + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(address) + | BF_GPMI_CTRL0_XFER_COUNT(0); + pio[1] = 0; + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, 2, DMA_NONE, 0); + if (!desc) { + pr_err("step 1 error\n"); + return -1; + } + + /* [2] Enable the BCH block and read. */ + command_mode = BV_GPMI_CTRL0_COMMAND_MODE__READ; + address = BV_GPMI_CTRL0_ADDRESS__NAND_DATA; + ecc_command = BV_GPMI_ECCCTRL_ECC_CMD__BCH_DECODE; + buffer_mask = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE + | BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY; + + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(address) + | BF_GPMI_CTRL0_XFER_COUNT(geo->page_size); + + pio[1] = 0; + pio[2] = BM_GPMI_ECCCTRL_ENABLE_ECC + | BF_GPMI_ECCCTRL_ECC_CMD(ecc_command) + | BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask); + pio[3] = geo->page_size; + pio[4] = payload; + pio[5] = auxiliary; + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, + ARRAY_SIZE(pio), DMA_NONE, 1); + if (!desc) { + pr_err("step 2 error\n"); + return -1; + } + + /* [3] Disable the BCH block */ + command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY; + address = BV_GPMI_CTRL0_ADDRESS__NAND_DATA; + + pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode) + | BM_GPMI_CTRL0_WORD_LENGTH + | BF_GPMI_CTRL0_CS(chip, this) + | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this) + | BF_GPMI_CTRL0_ADDRESS(address) + | BF_GPMI_CTRL0_XFER_COUNT(geo->page_size); + pio[1] = 0; + desc = channel->device->device_prep_slave_sg(channel, + (struct scatterlist *)pio, 2, DMA_NONE, 1); + if (!desc) { + pr_err("step 3 error\n"); + return -1; + } + + /* [4] submit the DMA */ + set_dma_type(this, DMA_FOR_READ_ECC_PAGE); + return start_dma_with_bch_irq(this, desc); +} diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-regs.h b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h new file mode 100644 index 000000000000..83431240e2f2 --- /dev/null +++ b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h @@ -0,0 +1,172 @@ +/* + * Freescale GPMI NAND Flash Driver + * + * Copyright 2008-2011 Freescale Semiconductor, Inc. + * Copyright 2008 Embedded Alley Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#ifndef __GPMI_NAND_GPMI_REGS_H +#define __GPMI_NAND_GPMI_REGS_H + +#define HW_GPMI_CTRL0 0x00000000 +#define HW_GPMI_CTRL0_SET 0x00000004 +#define HW_GPMI_CTRL0_CLR 0x00000008 +#define HW_GPMI_CTRL0_TOG 0x0000000c + +#define BP_GPMI_CTRL0_COMMAND_MODE 24 +#define BM_GPMI_CTRL0_COMMAND_MODE (3 << BP_GPMI_CTRL0_COMMAND_MODE) +#define BF_GPMI_CTRL0_COMMAND_MODE(v) \ + (((v) << BP_GPMI_CTRL0_COMMAND_MODE) & BM_GPMI_CTRL0_COMMAND_MODE) +#define BV_GPMI_CTRL0_COMMAND_MODE__WRITE 0x0 +#define BV_GPMI_CTRL0_COMMAND_MODE__READ 0x1 +#define BV_GPMI_CTRL0_COMMAND_MODE__READ_AND_COMPARE 0x2 +#define BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY 0x3 + +#define BM_GPMI_CTRL0_WORD_LENGTH (1 << 23) +#define BV_GPMI_CTRL0_WORD_LENGTH__16_BIT 0x0 +#define BV_GPMI_CTRL0_WORD_LENGTH__8_BIT 0x1 + +/* + * Difference in LOCK_CS between imx23 and imx28 : + * This bit may impact the _POWER_ consumption. So some chips + * do not set it. + */ +#define MX23_BP_GPMI_CTRL0_LOCK_CS 22 +#define MX28_BP_GPMI_CTRL0_LOCK_CS 27 +#define LOCK_CS_ENABLE 0x1 +#define BF_GPMI_CTRL0_LOCK_CS(v, x) 0x0 + +/* Difference in CS between imx23 and imx28 */ +#define BP_GPMI_CTRL0_CS 20 +#define MX23_BM_GPMI_CTRL0_CS (3 << BP_GPMI_CTRL0_CS) +#define MX28_BM_GPMI_CTRL0_CS (7 << BP_GPMI_CTRL0_CS) +#define BF_GPMI_CTRL0_CS(v, x) (((v) << BP_GPMI_CTRL0_CS) & \ + (GPMI_IS_MX23((x)) \ + ? MX23_BM_GPMI_CTRL0_CS \ + : MX28_BM_GPMI_CTRL0_CS)) + +#define BP_GPMI_CTRL0_ADDRESS 17 +#define BM_GPMI_CTRL0_ADDRESS (3 << BP_GPMI_CTRL0_ADDRESS) +#define BF_GPMI_CTRL0_ADDRESS(v) \ + (((v) << BP_GPMI_CTRL0_ADDRESS) & BM_GPMI_CTRL0_ADDRESS) +#define BV_GPMI_CTRL0_ADDRESS__NAND_DATA 0x0 +#define BV_GPMI_CTRL0_ADDRESS__NAND_CLE 0x1 +#define BV_GPMI_CTRL0_ADDRESS__NAND_ALE 0x2 + +#define BM_GPMI_CTRL0_ADDRESS_INCREMENT (1 << 16) +#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__DISABLED 0x0 +#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__ENABLED 0x1 + +#define BP_GPMI_CTRL0_XFER_COUNT 0 +#define BM_GPMI_CTRL0_XFER_COUNT (0xffff << BP_GPMI_CTRL0_XFER_COUNT) +#define BF_GPMI_CTRL0_XFER_COUNT(v) \ + (((v) << BP_GPMI_CTRL0_XFER_COUNT) & BM_GPMI_CTRL0_XFER_COUNT) + +#define HW_GPMI_COMPARE 0x00000010 + +#define HW_GPMI_ECCCTRL 0x00000020 +#define HW_GPMI_ECCCTRL_SET 0x00000024 +#define HW_GPMI_ECCCTRL_CLR 0x00000028 +#define HW_GPMI_ECCCTRL_TOG 0x0000002c + +#define BP_GPMI_ECCCTRL_ECC_CMD 13 +#define BM_GPMI_ECCCTRL_ECC_CMD (3 << BP_GPMI_ECCCTRL_ECC_CMD) +#define BF_GPMI_ECCCTRL_ECC_CMD(v) \ + (((v) << BP_GPMI_ECCCTRL_ECC_CMD) & BM_GPMI_ECCCTRL_ECC_CMD) +#define BV_GPMI_ECCCTRL_ECC_CMD__BCH_DECODE 0x0 +#define BV_GPMI_ECCCTRL_ECC_CMD__BCH_ENCODE 0x1 + +#define BM_GPMI_ECCCTRL_ENABLE_ECC (1 << 12) +#define BV_GPMI_ECCCTRL_ENABLE_ECC__ENABLE 0x1 +#define BV_GPMI_ECCCTRL_ENABLE_ECC__DISABLE 0x0 + +#define BP_GPMI_ECCCTRL_BUFFER_MASK 0 +#define BM_GPMI_ECCCTRL_BUFFER_MASK (0x1ff << BP_GPMI_ECCCTRL_BUFFER_MASK) +#define BF_GPMI_ECCCTRL_BUFFER_MASK(v) \ + (((v) << BP_GPMI_ECCCTRL_BUFFER_MASK) & BM_GPMI_ECCCTRL_BUFFER_MASK) +#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY 0x100 +#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE 0x1FF + +#define HW_GPMI_ECCCOUNT 0x00000030 +#define HW_GPMI_PAYLOAD 0x00000040 +#define HW_GPMI_AUXILIARY 0x00000050 +#define HW_GPMI_CTRL1 0x00000060 +#define HW_GPMI_CTRL1_SET 0x00000064 +#define HW_GPMI_CTRL1_CLR 0x00000068 +#define HW_GPMI_CTRL1_TOG 0x0000006c + +#define BM_GPMI_CTRL1_BCH_MODE (1 << 18) + +#define BP_GPMI_CTRL1_DLL_ENABLE 17 +#define BM_GPMI_CTRL1_DLL_ENABLE (1 << BP_GPMI_CTRL1_DLL_ENABLE) + +#define BP_GPMI_CTRL1_HALF_PERIOD 16 +#define BM_GPMI_CTRL1_HALF_PERIOD (1 << BP_GPMI_CTRL1_HALF_PERIOD) + +#define BP_GPMI_CTRL1_RDN_DELAY 12 +#define BM_GPMI_CTRL1_RDN_DELAY (0xf << BP_GPMI_CTRL1_RDN_DELAY) +#define BF_GPMI_CTRL1_RDN_DELAY(v) \ + (((v) << BP_GPMI_CTRL1_RDN_DELAY) & BM_GPMI_CTRL1_RDN_DELAY) + +#define BM_GPMI_CTRL1_DEV_RESET (1 << 3) +#define BV_GPMI_CTRL1_DEV_RESET__ENABLED 0x0 +#define BV_GPMI_CTRL1_DEV_RESET__DISABLED 0x1 + +#define BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY (1 << 2) +#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVELOW 0x0 +#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVEHIGH 0x1 + +#define BM_GPMI_CTRL1_CAMERA_MODE (1 << 1) +#define BV_GPMI_CTRL1_GPMI_MODE__NAND 0x0 +#define BV_GPMI_CTRL1_GPMI_MODE__ATA 0x1 + +#define BM_GPMI_CTRL1_GPMI_MODE (1 << 0) + +#define HW_GPMI_TIMING0 0x00000070 + +#define BP_GPMI_TIMING0_ADDRESS_SETUP 16 +#define BM_GPMI_TIMING0_ADDRESS_SETUP (0xff << BP_GPMI_TIMING0_ADDRESS_SETUP) +#define BF_GPMI_TIMING0_ADDRESS_SETUP(v) \ + (((v) << BP_GPMI_TIMING0_ADDRESS_SETUP) & BM_GPMI_TIMING0_ADDRESS_SETUP) + +#define BP_GPMI_TIMING0_DATA_HOLD 8 +#define BM_GPMI_TIMING0_DATA_HOLD (0xff << BP_GPMI_TIMING0_DATA_HOLD) +#define BF_GPMI_TIMING0_DATA_HOLD(v) \ + (((v) << BP_GPMI_TIMING0_DATA_HOLD) & BM_GPMI_TIMING0_DATA_HOLD) + +#define BP_GPMI_TIMING0_DATA_SETUP 0 +#define BM_GPMI_TIMING0_DATA_SETUP (0xff << BP_GPMI_TIMING0_DATA_SETUP) +#define BF_GPMI_TIMING0_DATA_SETUP(v) \ + (((v) << BP_GPMI_TIMING0_DATA_SETUP) & BM_GPMI_TIMING0_DATA_SETUP) + +#define HW_GPMI_TIMING1 0x00000080 +#define BP_GPMI_TIMING1_BUSY_TIMEOUT 16 + +#define HW_GPMI_TIMING2 0x00000090 +#define HW_GPMI_DATA 0x000000a0 + +/* MX28 uses this to detect READY. */ +#define HW_GPMI_STAT 0x000000b0 +#define MX28_BP_GPMI_STAT_READY_BUSY 24 +#define MX28_BM_GPMI_STAT_READY_BUSY (0xff << MX28_BP_GPMI_STAT_READY_BUSY) +#define MX28_BF_GPMI_STAT_READY_BUSY(v) \ + (((v) << MX28_BP_GPMI_STAT_READY_BUSY) & MX28_BM_GPMI_STAT_READY_BUSY) + +/* MX23 uses this to detect READY. */ +#define HW_GPMI_DEBUG 0x000000c0 +#define MX23_BP_GPMI_DEBUG_READY0 28 +#define MX23_BM_GPMI_DEBUG_READY0 (1 << MX23_BP_GPMI_DEBUG_READY0) +#endif -- cgit v1.2.3 From 157550ff77cb5087033382782f4e856094466c16 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Thu, 8 Sep 2011 10:47:11 +0800 Subject: mtd: add GPMI-NAND driver in the config and Makefile add the GPMI-NAND driver in the relevant Kconfig and Makefile in the MTD. Signed-off-by: Huang Shijie Acked-by: Marek Vasut Tested-by: Koen Beel Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 13 +++++++++++++ drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/gpmi-nand/Makefile | 3 +++ 3 files changed, 17 insertions(+) create mode 100644 drivers/mtd/nand/gpmi-nand/Makefile (limited to 'drivers') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 7ec5b494583f..42b7b861c74a 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -417,6 +417,19 @@ config MTD_NAND_NANDSIM The simulator may simulate various NAND flash chips for the MTD nand layer. +config MTD_NAND_GPMI_NAND + bool "GPMI NAND Flash Controller driver" + depends on MTD_NAND && (SOC_IMX23 || SOC_IMX28) + select MTD_PARTITIONS + select MTD_CMDLINE_PARTS + help + Enables NAND Flash support for IMX23 or IMX28. + The GPMI controller is very powerful, with the help of BCH + module, it can do the hardware ECC. The GPMI supports several + NAND flashs at the same time. The GPMI may conflicts with other + block, such as SD card. So pay attention to it when you enable + the GPMI. + config MTD_NAND_PLATFORM tristate "Support for generic platform NAND driver" help diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile index c9334e9af912..618f4ba23699 100644 --- a/drivers/mtd/nand/Makefile +++ b/drivers/mtd/nand/Makefile @@ -48,5 +48,6 @@ obj-$(CONFIG_MTD_NAND_BCM_UMI) += bcm_umi_nand.o nand_bcm_umi.o obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mpc5121_nfc.o obj-$(CONFIG_MTD_NAND_RICOH) += r852.o obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o +obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi-nand/ nand-objs := nand_base.o nand_bbt.o diff --git a/drivers/mtd/nand/gpmi-nand/Makefile b/drivers/mtd/nand/gpmi-nand/Makefile new file mode 100644 index 000000000000..3a462487c35e --- /dev/null +++ b/drivers/mtd/nand/gpmi-nand/Makefile @@ -0,0 +1,3 @@ +obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi_nand.o +gpmi_nand-objs += gpmi-nand.o +gpmi_nand-objs += gpmi-lib.o -- cgit v1.2.3 From 10a2bcae99267b28e058b089fda30de7397b69f5 Mon Sep 17 00:00:00 2001 From: Huang Shijie Date: Thu, 8 Sep 2011 10:47:09 +0800 Subject: mtd: add the common code for GPMI-NAND controller driver These files contain the common code for the GPMI-NAND driver. Signed-off-by: Huang Shijie Acked-by: Marek Vasut Tested-by: Koen Beel Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 1619 ++++++++++++++++++++++++++++++++ drivers/mtd/nand/gpmi-nand/gpmi-nand.h | 273 ++++++ 2 files changed, 1892 insertions(+) create mode 100644 drivers/mtd/nand/gpmi-nand/gpmi-nand.c create mode 100644 drivers/mtd/nand/gpmi-nand/gpmi-nand.h (limited to 'drivers') diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c new file mode 100644 index 000000000000..5c0fe0dd7057 --- /dev/null +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -0,0 +1,1619 @@ +/* + * Freescale GPMI NAND Flash Driver + * + * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. + * Copyright (C) 2008 Embedded Alley Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#include +#include +#include +#include +#include + +#include "gpmi-nand.h" + +/* add our owner bbt descriptor */ +static uint8_t scan_ff_pattern[] = { 0xff }; +static struct nand_bbt_descr gpmi_bbt_descr = { + .options = 0, + .offs = 0, + .len = 1, + .pattern = scan_ff_pattern +}; + +/* We will use all the (page + OOB). */ +static struct nand_ecclayout gpmi_hw_ecclayout = { + .eccbytes = 0, + .eccpos = { 0, }, + .oobfree = { {.offset = 0, .length = 0} } +}; + +static irqreturn_t bch_irq(int irq, void *cookie) +{ + struct gpmi_nand_data *this = cookie; + + gpmi_clear_bch(this); + complete(&this->bch_done); + return IRQ_HANDLED; +} + +/* + * Calculate the ECC strength by hand: + * E : The ECC strength. + * G : the length of Galois Field. + * N : The chunk count of per page. + * O : the oobsize of the NAND chip. + * M : the metasize of per page. + * + * The formula is : + * E * G * N + * ------------ <= (O - M) + * 8 + * + * So, we get E by: + * (O - M) * 8 + * E <= ------------- + * G * N + */ +static inline int get_ecc_strength(struct gpmi_nand_data *this) +{ + struct bch_geometry *geo = &this->bch_geometry; + struct mtd_info *mtd = &this->mtd; + int ecc_strength; + + ecc_strength = ((mtd->oobsize - geo->metadata_size) * 8) + / (geo->gf_len * geo->ecc_chunk_count); + + /* We need the minor even number. */ + return round_down(ecc_strength, 2); +} + +int common_nfc_set_geometry(struct gpmi_nand_data *this) +{ + struct bch_geometry *geo = &this->bch_geometry; + struct mtd_info *mtd = &this->mtd; + unsigned int metadata_size; + unsigned int status_size; + unsigned int block_mark_bit_offset; + + /* + * The size of the metadata can be changed, though we set it to 10 + * bytes now. But it can't be too large, because we have to save + * enough space for BCH. + */ + geo->metadata_size = 10; + + /* The default for the length of Galois Field. */ + geo->gf_len = 13; + + /* The default for chunk size. There is no oobsize greater then 512. */ + geo->ecc_chunk_size = 512; + while (geo->ecc_chunk_size < mtd->oobsize) + geo->ecc_chunk_size *= 2; /* keep C >= O */ + + geo->ecc_chunk_count = mtd->writesize / geo->ecc_chunk_size; + + /* We use the same ECC strength for all chunks. */ + geo->ecc_strength = get_ecc_strength(this); + if (!geo->ecc_strength) { + pr_err("We get a wrong ECC strength.\n"); + return -EINVAL; + } + + geo->page_size = mtd->writesize + mtd->oobsize; + geo->payload_size = mtd->writesize; + + /* + * The auxiliary buffer contains the metadata and the ECC status. The + * metadata is padded to the nearest 32-bit boundary. The ECC status + * contains one byte for every ECC chunk, and is also padded to the + * nearest 32-bit boundary. + */ + metadata_size = ALIGN(geo->metadata_size, 4); + status_size = ALIGN(geo->ecc_chunk_count, 4); + + geo->auxiliary_size = metadata_size + status_size; + geo->auxiliary_status_offset = metadata_size; + + if (!this->swap_block_mark) + return 0; + + /* + * We need to compute the byte and bit offsets of + * the physical block mark within the ECC-based view of the page. + * + * NAND chip with 2K page shows below: + * (Block Mark) + * | | + * | D | + * |<---->| + * V V + * +---+----------+-+----------+-+----------+-+----------+-+ + * | M | data |E| data |E| data |E| data |E| + * +---+----------+-+----------+-+----------+-+----------+-+ + * + * The position of block mark moves forward in the ECC-based view + * of page, and the delta is: + * + * E * G * (N - 1) + * D = (---------------- + M) + * 8 + * + * With the formula to compute the ECC strength, and the condition + * : C >= O (C is the ecc chunk size) + * + * It's easy to deduce to the following result: + * + * E * G (O - M) C - M C - M + * ----------- <= ------- <= -------- < --------- + * 8 N N (N - 1) + * + * So, we get: + * + * E * G * (N - 1) + * D = (---------------- + M) < C + * 8 + * + * The above inequality means the position of block mark + * within the ECC-based view of the page is still in the data chunk, + * and it's NOT in the ECC bits of the chunk. + * + * Use the following to compute the bit position of the + * physical block mark within the ECC-based view of the page: + * (page_size - D) * 8 + * + * --Huang Shijie + */ + block_mark_bit_offset = mtd->writesize * 8 - + (geo->ecc_strength * geo->gf_len * (geo->ecc_chunk_count - 1) + + geo->metadata_size * 8); + + geo->block_mark_byte_offset = block_mark_bit_offset / 8; + geo->block_mark_bit_offset = block_mark_bit_offset % 8; + return 0; +} + +struct dma_chan *get_dma_chan(struct gpmi_nand_data *this) +{ + int chipnr = this->current_chip; + + return this->dma_chans[chipnr]; +} + +/* Can we use the upper's buffer directly for DMA? */ +void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr) +{ + struct scatterlist *sgl = &this->data_sgl; + int ret; + + this->direct_dma_map_ok = true; + + /* first try to map the upper buffer directly */ + sg_init_one(sgl, this->upper_buf, this->upper_len); + ret = dma_map_sg(this->dev, sgl, 1, dr); + if (ret == 0) { + /* We have to use our own DMA buffer. */ + sg_init_one(sgl, this->data_buffer_dma, PAGE_SIZE); + + if (dr == DMA_TO_DEVICE) + memcpy(this->data_buffer_dma, this->upper_buf, + this->upper_len); + + ret = dma_map_sg(this->dev, sgl, 1, dr); + if (ret == 0) + pr_err("map failed.\n"); + + this->direct_dma_map_ok = false; + } +} + +/* This will be called after the DMA operation is finished. */ +static void dma_irq_callback(void *param) +{ + struct gpmi_nand_data *this = param; + struct completion *dma_c = &this->dma_done; + + complete(dma_c); + + switch (this->dma_type) { + case DMA_FOR_COMMAND: + dma_unmap_sg(this->dev, &this->cmd_sgl, 1, DMA_TO_DEVICE); + break; + + case DMA_FOR_READ_DATA: + dma_unmap_sg(this->dev, &this->data_sgl, 1, DMA_FROM_DEVICE); + if (this->direct_dma_map_ok == false) + memcpy(this->upper_buf, this->data_buffer_dma, + this->upper_len); + break; + + case DMA_FOR_WRITE_DATA: + dma_unmap_sg(this->dev, &this->data_sgl, 1, DMA_TO_DEVICE); + break; + + case DMA_FOR_READ_ECC_PAGE: + case DMA_FOR_WRITE_ECC_PAGE: + /* We have to wait the BCH interrupt to finish. */ + break; + + default: + pr_err("in wrong DMA operation.\n"); + } +} + +int start_dma_without_bch_irq(struct gpmi_nand_data *this, + struct dma_async_tx_descriptor *desc) +{ + struct completion *dma_c = &this->dma_done; + int err; + + init_completion(dma_c); + + desc->callback = dma_irq_callback; + desc->callback_param = this; + dmaengine_submit(desc); + + /* Wait for the interrupt from the DMA block. */ + err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000)); + if (!err) { + pr_err("DMA timeout, last DMA :%d\n", this->last_dma_type); + gpmi_dump_info(this); + return -ETIMEDOUT; + } + return 0; +} + +/* + * This function is used in BCH reading or BCH writing pages. + * It will wait for the BCH interrupt as long as ONE second. + * Actually, we must wait for two interrupts : + * [1] firstly the DMA interrupt and + * [2] secondly the BCH interrupt. + */ +int start_dma_with_bch_irq(struct gpmi_nand_data *this, + struct dma_async_tx_descriptor *desc) +{ + struct completion *bch_c = &this->bch_done; + int err; + + /* Prepare to receive an interrupt from the BCH block. */ + init_completion(bch_c); + + /* start the DMA */ + start_dma_without_bch_irq(this, desc); + + /* Wait for the interrupt from the BCH block. */ + err = wait_for_completion_timeout(bch_c, msecs_to_jiffies(1000)); + if (!err) { + pr_err("BCH timeout, last DMA :%d\n", this->last_dma_type); + gpmi_dump_info(this); + return -ETIMEDOUT; + } + return 0; +} + +static int __devinit +acquire_register_block(struct gpmi_nand_data *this, const char *res_name) +{ + struct platform_device *pdev = this->pdev; + struct resources *res = &this->resources; + struct resource *r; + void *p; + + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name); + if (!r) { + pr_err("Can't get resource for %s\n", res_name); + return -ENXIO; + } + + p = ioremap(r->start, resource_size(r)); + if (!p) { + pr_err("Can't remap %s\n", res_name); + return -ENOMEM; + } + + if (!strcmp(res_name, GPMI_NAND_GPMI_REGS_ADDR_RES_NAME)) + res->gpmi_regs = p; + else if (!strcmp(res_name, GPMI_NAND_BCH_REGS_ADDR_RES_NAME)) + res->bch_regs = p; + else + pr_err("unknown resource name : %s\n", res_name); + + return 0; +} + +static void release_register_block(struct gpmi_nand_data *this) +{ + struct resources *res = &this->resources; + if (res->gpmi_regs) + iounmap(res->gpmi_regs); + if (res->bch_regs) + iounmap(res->bch_regs); + res->gpmi_regs = NULL; + res->bch_regs = NULL; +} + +static int __devinit +acquire_bch_irq(struct gpmi_nand_data *this, irq_handler_t irq_h) +{ + struct platform_device *pdev = this->pdev; + struct resources *res = &this->resources; + const char *res_name = GPMI_NAND_BCH_INTERRUPT_RES_NAME; + struct resource *r; + int err; + + r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name); + if (!r) { + pr_err("Can't get resource for %s\n", res_name); + return -ENXIO; + } + + err = request_irq(r->start, irq_h, 0, res_name, this); + if (err) { + pr_err("Can't own %s\n", res_name); + return err; + } + + res->bch_low_interrupt = r->start; + res->bch_high_interrupt = r->end; + return 0; +} + +static void release_bch_irq(struct gpmi_nand_data *this) +{ + struct resources *res = &this->resources; + int i = res->bch_low_interrupt; + + for (; i <= res->bch_high_interrupt; i++) + free_irq(i, this); +} + +static bool gpmi_dma_filter(struct dma_chan *chan, void *param) +{ + struct gpmi_nand_data *this = param; + struct resource *r = this->private; + + if (!mxs_dma_is_apbh(chan)) + return false; + /* + * only catch the GPMI dma channels : + * for mx23 : MX23_DMA_GPMI0 ~ MX23_DMA_GPMI3 + * (These four channels share the same IRQ!) + * + * for mx28 : MX28_DMA_GPMI0 ~ MX28_DMA_GPMI7 + * (These eight channels share the same IRQ!) + */ + if (r->start <= chan->chan_id && chan->chan_id <= r->end) { + chan->private = &this->dma_data; + return true; + } + return false; +} + +static void release_dma_channels(struct gpmi_nand_data *this) +{ + unsigned int i; + for (i = 0; i < DMA_CHANS; i++) + if (this->dma_chans[i]) { + dma_release_channel(this->dma_chans[i]); + this->dma_chans[i] = NULL; + } +} + +static int __devinit acquire_dma_channels(struct gpmi_nand_data *this) +{ + struct platform_device *pdev = this->pdev; + struct gpmi_nand_platform_data *pdata = this->pdata; + struct resources *res = &this->resources; + struct resource *r, *r_dma; + unsigned int i; + + r = platform_get_resource_byname(pdev, IORESOURCE_DMA, + GPMI_NAND_DMA_CHANNELS_RES_NAME); + r_dma = platform_get_resource_byname(pdev, IORESOURCE_IRQ, + GPMI_NAND_DMA_INTERRUPT_RES_NAME); + if (!r || !r_dma) { + pr_err("Can't get resource for DMA\n"); + return -ENXIO; + } + + /* used in gpmi_dma_filter() */ + this->private = r; + + for (i = r->start; i <= r->end; i++) { + struct dma_chan *dma_chan; + dma_cap_mask_t mask; + + if (i - r->start >= pdata->max_chip_count) + break; + + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); + + /* get the DMA interrupt */ + if (r_dma->start == r_dma->end) { + /* only register the first. */ + if (i == r->start) + this->dma_data.chan_irq = r_dma->start; + else + this->dma_data.chan_irq = NO_IRQ; + } else + this->dma_data.chan_irq = r_dma->start + (i - r->start); + + dma_chan = dma_request_channel(mask, gpmi_dma_filter, this); + if (!dma_chan) + goto acquire_err; + + /* fill the first empty item */ + this->dma_chans[i - r->start] = dma_chan; + } + + res->dma_low_channel = r->start; + res->dma_high_channel = i; + return 0; + +acquire_err: + pr_err("Can't acquire DMA channel %u\n", i); + release_dma_channels(this); + return -EINVAL; +} + +static int __devinit acquire_resources(struct gpmi_nand_data *this) +{ + struct resources *res = &this->resources; + int ret; + + ret = acquire_register_block(this, GPMI_NAND_GPMI_REGS_ADDR_RES_NAME); + if (ret) + goto exit_regs; + + ret = acquire_register_block(this, GPMI_NAND_BCH_REGS_ADDR_RES_NAME); + if (ret) + goto exit_regs; + + ret = acquire_bch_irq(this, bch_irq); + if (ret) + goto exit_regs; + + ret = acquire_dma_channels(this); + if (ret) + goto exit_dma_channels; + + res->clock = clk_get(&this->pdev->dev, NULL); + if (IS_ERR(res->clock)) { + pr_err("can not get the clock\n"); + ret = -ENOENT; + goto exit_clock; + } + return 0; + +exit_clock: + release_dma_channels(this); +exit_dma_channels: + release_bch_irq(this); +exit_regs: + release_register_block(this); + return ret; +} + +static void release_resources(struct gpmi_nand_data *this) +{ + struct resources *r = &this->resources; + + clk_put(r->clock); + release_register_block(this); + release_bch_irq(this); + release_dma_channels(this); +} + +static int __devinit init_hardware(struct gpmi_nand_data *this) +{ + int ret; + + /* + * This structure contains the "safe" GPMI timing that should succeed + * with any NAND Flash device + * (although, with less-than-optimal performance). + */ + struct nand_timing safe_timing = { + .data_setup_in_ns = 80, + .data_hold_in_ns = 60, + .address_setup_in_ns = 25, + .gpmi_sample_delay_in_ns = 6, + .tREA_in_ns = -1, + .tRLOH_in_ns = -1, + .tRHOH_in_ns = -1, + }; + + /* Initialize the hardwares. */ + ret = gpmi_init(this); + if (ret) + return ret; + + this->timing = safe_timing; + return 0; +} + +static int read_page_prepare(struct gpmi_nand_data *this, + void *destination, unsigned length, + void *alt_virt, dma_addr_t alt_phys, unsigned alt_size, + void **use_virt, dma_addr_t *use_phys) +{ + struct device *dev = this->dev; + + if (virt_addr_valid(destination)) { + dma_addr_t dest_phys; + + dest_phys = dma_map_single(dev, destination, + length, DMA_FROM_DEVICE); + if (dma_mapping_error(dev, dest_phys)) { + if (alt_size < length) { + pr_err("Alternate buffer is too small\n"); + return -ENOMEM; + } + goto map_failed; + } + *use_virt = destination; + *use_phys = dest_phys; + this->direct_dma_map_ok = true; + return 0; + } + +map_failed: + *use_virt = alt_virt; + *use_phys = alt_phys; + this->direct_dma_map_ok = false; + return 0; +} + +static inline void read_page_end(struct gpmi_nand_data *this, + void *destination, unsigned length, + void *alt_virt, dma_addr_t alt_phys, unsigned alt_size, + void *used_virt, dma_addr_t used_phys) +{ + if (this->direct_dma_map_ok) + dma_unmap_single(this->dev, used_phys, length, DMA_FROM_DEVICE); +} + +static inline void read_page_swap_end(struct gpmi_nand_data *this, + void *destination, unsigned length, + void *alt_virt, dma_addr_t alt_phys, unsigned alt_size, + void *used_virt, dma_addr_t used_phys) +{ + if (!this->direct_dma_map_ok) + memcpy(destination, alt_virt, length); +} + +static int send_page_prepare(struct gpmi_nand_data *this, + const void *source, unsigned length, + void *alt_virt, dma_addr_t alt_phys, unsigned alt_size, + const void **use_virt, dma_addr_t *use_phys) +{ + struct device *dev = this->dev; + + if (virt_addr_valid(source)) { + dma_addr_t source_phys; + + source_phys = dma_map_single(dev, (void *)source, length, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, source_phys)) { + if (alt_size < length) { + pr_err("Alternate buffer is too small\n"); + return -ENOMEM; + } + goto map_failed; + } + *use_virt = source; + *use_phys = source_phys; + return 0; + } +map_failed: + /* + * Copy the content of the source buffer into the alternate + * buffer and set up the return values accordingly. + */ + memcpy(alt_virt, source, length); + + *use_virt = alt_virt; + *use_phys = alt_phys; + return 0; +} + +static void send_page_end(struct gpmi_nand_data *this, + const void *source, unsigned length, + void *alt_virt, dma_addr_t alt_phys, unsigned alt_size, + const void *used_virt, dma_addr_t used_phys) +{ + struct device *dev = this->dev; + if (used_virt == source) + dma_unmap_single(dev, used_phys, length, DMA_TO_DEVICE); +} + +static void gpmi_free_dma_buffer(struct gpmi_nand_data *this) +{ + struct device *dev = this->dev; + + if (this->page_buffer_virt && virt_addr_valid(this->page_buffer_virt)) + dma_free_coherent(dev, this->page_buffer_size, + this->page_buffer_virt, + this->page_buffer_phys); + kfree(this->cmd_buffer); + kfree(this->data_buffer_dma); + + this->cmd_buffer = NULL; + this->data_buffer_dma = NULL; + this->page_buffer_virt = NULL; + this->page_buffer_size = 0; +} + +/* Allocate the DMA buffers */ +static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this) +{ + struct bch_geometry *geo = &this->bch_geometry; + struct device *dev = this->dev; + + /* [1] Allocate a command buffer. PAGE_SIZE is enough. */ + this->cmd_buffer = kzalloc(PAGE_SIZE, GFP_DMA); + if (this->cmd_buffer == NULL) + goto error_alloc; + + /* [2] Allocate a read/write data buffer. PAGE_SIZE is enough. */ + this->data_buffer_dma = kzalloc(PAGE_SIZE, GFP_DMA); + if (this->data_buffer_dma == NULL) + goto error_alloc; + + /* + * [3] Allocate the page buffer. + * + * Both the payload buffer and the auxiliary buffer must appear on + * 32-bit boundaries. We presume the size of the payload buffer is a + * power of two and is much larger than four, which guarantees the + * auxiliary buffer will appear on a 32-bit boundary. + */ + this->page_buffer_size = geo->payload_size + geo->auxiliary_size; + this->page_buffer_virt = dma_alloc_coherent(dev, this->page_buffer_size, + &this->page_buffer_phys, GFP_DMA); + if (!this->page_buffer_virt) + goto error_alloc; + + + /* Slice up the page buffer. */ + this->payload_virt = this->page_buffer_virt; + this->payload_phys = this->page_buffer_phys; + this->auxiliary_virt = this->payload_virt + geo->payload_size; + this->auxiliary_phys = this->payload_phys + geo->payload_size; + return 0; + +error_alloc: + gpmi_free_dma_buffer(this); + pr_err("allocate DMA buffer ret!!\n"); + return -ENOMEM; +} + +static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + int ret; + + /* + * Every operation begins with a command byte and a series of zero or + * more address bytes. These are distinguished by either the Address + * Latch Enable (ALE) or Command Latch Enable (CLE) signals being + * asserted. When MTD is ready to execute the command, it will deassert + * both latch enables. + * + * Rather than run a separate DMA operation for every single byte, we + * queue them up and run a single DMA operation for the entire series + * of command and data bytes. NAND_CMD_NONE means the END of the queue. + */ + if ((ctrl & (NAND_ALE | NAND_CLE))) { + if (data != NAND_CMD_NONE) + this->cmd_buffer[this->command_length++] = data; + return; + } + + if (!this->command_length) + return; + + ret = gpmi_send_command(this); + if (ret) + pr_err("Chip: %u, Error %d\n", this->current_chip, ret); + + this->command_length = 0; +} + +static int gpmi_dev_ready(struct mtd_info *mtd) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + + return gpmi_is_ready(this, this->current_chip); +} + +static void gpmi_select_chip(struct mtd_info *mtd, int chipnr) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + + if ((this->current_chip < 0) && (chipnr >= 0)) + gpmi_begin(this); + else if ((this->current_chip >= 0) && (chipnr < 0)) + gpmi_end(this); + + this->current_chip = chipnr; +} + +static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + + pr_debug("len is %d\n", len); + this->upper_buf = buf; + this->upper_len = len; + + gpmi_read_data(this); +} + +static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + + pr_debug("len is %d\n", len); + this->upper_buf = (uint8_t *)buf; + this->upper_len = len; + + gpmi_send_data(this); +} + +static uint8_t gpmi_read_byte(struct mtd_info *mtd) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + uint8_t *buf = this->data_buffer_dma; + + gpmi_read_buf(mtd, buf, 1); + return buf[0]; +} + +/* + * Handles block mark swapping. + * It can be called in swapping the block mark, or swapping it back, + * because the the operations are the same. + */ +static void block_mark_swapping(struct gpmi_nand_data *this, + void *payload, void *auxiliary) +{ + struct bch_geometry *nfc_geo = &this->bch_geometry; + unsigned char *p; + unsigned char *a; + unsigned int bit; + unsigned char mask; + unsigned char from_data; + unsigned char from_oob; + + if (!this->swap_block_mark) + return; + + /* + * If control arrives here, we're swapping. Make some convenience + * variables. + */ + bit = nfc_geo->block_mark_bit_offset; + p = payload + nfc_geo->block_mark_byte_offset; + a = auxiliary; + + /* + * Get the byte from the data area that overlays the block mark. Since + * the ECC engine applies its own view to the bits in the page, the + * physical block mark won't (in general) appear on a byte boundary in + * the data. + */ + from_data = (p[0] >> bit) | (p[1] << (8 - bit)); + + /* Get the byte from the OOB. */ + from_oob = a[0]; + + /* Swap them. */ + a[0] = from_data; + + mask = (0x1 << bit) - 1; + p[0] = (p[0] & mask) | (from_oob << bit); + + mask = ~0 << bit; + p[1] = (p[1] & mask) | (from_oob >> (8 - bit)); +} + +static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip, + uint8_t *buf, int page) +{ + struct gpmi_nand_data *this = chip->priv; + struct bch_geometry *nfc_geo = &this->bch_geometry; + void *payload_virt; + dma_addr_t payload_phys; + void *auxiliary_virt; + dma_addr_t auxiliary_phys; + unsigned int i; + unsigned char *status; + unsigned int failed; + unsigned int corrected; + int ret; + + pr_debug("page number is : %d\n", page); + ret = read_page_prepare(this, buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + &payload_virt, &payload_phys); + if (ret) { + pr_err("Inadequate DMA buffer\n"); + ret = -ENOMEM; + return ret; + } + auxiliary_virt = this->auxiliary_virt; + auxiliary_phys = this->auxiliary_phys; + + /* go! */ + ret = gpmi_read_page(this, payload_phys, auxiliary_phys); + read_page_end(this, buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + payload_virt, payload_phys); + if (ret) { + pr_err("Error in ECC-based read: %d\n", ret); + goto exit_nfc; + } + + /* handle the block mark swapping */ + block_mark_swapping(this, payload_virt, auxiliary_virt); + + /* Loop over status bytes, accumulating ECC status. */ + failed = 0; + corrected = 0; + status = auxiliary_virt + nfc_geo->auxiliary_status_offset; + + for (i = 0; i < nfc_geo->ecc_chunk_count; i++, status++) { + if ((*status == STATUS_GOOD) || (*status == STATUS_ERASED)) + continue; + + if (*status == STATUS_UNCORRECTABLE) { + failed++; + continue; + } + corrected += *status; + } + + /* + * Propagate ECC status to the owning MTD only when failed or + * corrected times nearly reaches our ECC correction threshold. + */ + if (failed || corrected >= (nfc_geo->ecc_strength - 1)) { + mtd->ecc_stats.failed += failed; + mtd->ecc_stats.corrected += corrected; + } + + /* + * It's time to deliver the OOB bytes. See gpmi_ecc_read_oob() for + * details about our policy for delivering the OOB. + * + * We fill the caller's buffer with set bits, and then copy the block + * mark to th caller's buffer. Note that, if block mark swapping was + * necessary, it has already been done, so we can rely on the first + * byte of the auxiliary buffer to contain the block mark. + */ + memset(chip->oob_poi, ~0, mtd->oobsize); + chip->oob_poi[0] = ((uint8_t *) auxiliary_virt)[0]; + + read_page_swap_end(this, buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + payload_virt, payload_phys); +exit_nfc: + return ret; +} + +static void gpmi_ecc_write_page(struct mtd_info *mtd, + struct nand_chip *chip, const uint8_t *buf) +{ + struct gpmi_nand_data *this = chip->priv; + struct bch_geometry *nfc_geo = &this->bch_geometry; + const void *payload_virt; + dma_addr_t payload_phys; + const void *auxiliary_virt; + dma_addr_t auxiliary_phys; + int ret; + + pr_debug("ecc write page.\n"); + if (this->swap_block_mark) { + /* + * If control arrives here, we're doing block mark swapping. + * Since we can't modify the caller's buffers, we must copy them + * into our own. + */ + memcpy(this->payload_virt, buf, mtd->writesize); + payload_virt = this->payload_virt; + payload_phys = this->payload_phys; + + memcpy(this->auxiliary_virt, chip->oob_poi, + nfc_geo->auxiliary_size); + auxiliary_virt = this->auxiliary_virt; + auxiliary_phys = this->auxiliary_phys; + + /* Handle block mark swapping. */ + block_mark_swapping(this, + (void *) payload_virt, (void *) auxiliary_virt); + } else { + /* + * If control arrives here, we're not doing block mark swapping, + * so we can to try and use the caller's buffers. + */ + ret = send_page_prepare(this, + buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + &payload_virt, &payload_phys); + if (ret) { + pr_err("Inadequate payload DMA buffer\n"); + return; + } + + ret = send_page_prepare(this, + chip->oob_poi, mtd->oobsize, + this->auxiliary_virt, this->auxiliary_phys, + nfc_geo->auxiliary_size, + &auxiliary_virt, &auxiliary_phys); + if (ret) { + pr_err("Inadequate auxiliary DMA buffer\n"); + goto exit_auxiliary; + } + } + + /* Ask the NFC. */ + ret = gpmi_send_page(this, payload_phys, auxiliary_phys); + if (ret) + pr_err("Error in ECC-based write: %d\n", ret); + + if (!this->swap_block_mark) { + send_page_end(this, chip->oob_poi, mtd->oobsize, + this->auxiliary_virt, this->auxiliary_phys, + nfc_geo->auxiliary_size, + auxiliary_virt, auxiliary_phys); +exit_auxiliary: + send_page_end(this, buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + payload_virt, payload_phys); + } +} + +/* + * There are several places in this driver where we have to handle the OOB and + * block marks. This is the function where things are the most complicated, so + * this is where we try to explain it all. All the other places refer back to + * here. + * + * These are the rules, in order of decreasing importance: + * + * 1) Nothing the caller does can be allowed to imperil the block mark. + * + * 2) In read operations, the first byte of the OOB we return must reflect the + * true state of the block mark, no matter where that block mark appears in + * the physical page. + * + * 3) ECC-based read operations return an OOB full of set bits (since we never + * allow ECC-based writes to the OOB, it doesn't matter what ECC-based reads + * return). + * + * 4) "Raw" read operations return a direct view of the physical bytes in the + * page, using the conventional definition of which bytes are data and which + * are OOB. This gives the caller a way to see the actual, physical bytes + * in the page, without the distortions applied by our ECC engine. + * + * + * What we do for this specific read operation depends on two questions: + * + * 1) Are we doing a "raw" read, or an ECC-based read? + * + * 2) Are we using block mark swapping or transcription? + * + * There are four cases, illustrated by the following Karnaugh map: + * + * | Raw | ECC-based | + * -------------+-------------------------+-------------------------+ + * | Read the conventional | | + * | OOB at the end of the | | + * Swapping | page and return it. It | | + * | contains exactly what | | + * | we want. | Read the block mark and | + * -------------+-------------------------+ return it in a buffer | + * | Read the conventional | full of set bits. | + * | OOB at the end of the | | + * | page and also the block | | + * Transcribing | mark in the metadata. | | + * | Copy the block mark | | + * | into the first byte of | | + * | the OOB. | | + * -------------+-------------------------+-------------------------+ + * + * Note that we break rule #4 in the Transcribing/Raw case because we're not + * giving an accurate view of the actual, physical bytes in the page (we're + * overwriting the block mark). That's OK because it's more important to follow + * rule #2. + * + * It turns out that knowing whether we want an "ECC-based" or "raw" read is not + * easy. When reading a page, for example, the NAND Flash MTD code calls our + * ecc.read_page or ecc.read_page_raw function. Thus, the fact that MTD wants an + * ECC-based or raw view of the page is implicit in which function it calls + * (there is a similar pair of ECC-based/raw functions for writing). + * + * Since MTD assumes the OOB is not covered by ECC, there is no pair of + * ECC-based/raw functions for reading or or writing the OOB. The fact that the + * caller wants an ECC-based or raw view of the page is not propagated down to + * this driver. + */ +static int gpmi_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *chip, + int page, int sndcmd) +{ + struct gpmi_nand_data *this = chip->priv; + + pr_debug("page number is %d\n", page); + /* clear the OOB buffer */ + memset(chip->oob_poi, ~0, mtd->oobsize); + + /* Read out the conventional OOB. */ + chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); + chip->read_buf(mtd, chip->oob_poi, mtd->oobsize); + + /* + * Now, we want to make sure the block mark is correct. In the + * Swapping/Raw case, we already have it. Otherwise, we need to + * explicitly read it. + */ + if (!this->swap_block_mark) { + /* Read the block mark into the first byte of the OOB buffer. */ + chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page); + chip->oob_poi[0] = chip->read_byte(mtd); + } + + /* + * Return true, indicating that the next call to this function must send + * a command. + */ + return true; +} + +static int +gpmi_ecc_write_oob(struct mtd_info *mtd, struct nand_chip *chip, int page) +{ + /* + * The BCH will use all the (page + oob). + * Our gpmi_hw_ecclayout can only prohibit the JFFS2 to write the oob. + * But it can not stop some ioctls such MEMWRITEOOB which uses + * MTD_OOB_PLACE. So We have to implement this function to prohibit + * these ioctls too. + */ + return -EPERM; +} + +static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + int block, ret = 0; + uint8_t *block_mark; + int column, page, status, chipnr; + + /* Get block number */ + block = (int)(ofs >> chip->bbt_erase_shift); + if (chip->bbt) + chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1); + + /* Do we have a flash based bad block table ? */ + if (chip->options & NAND_BBT_USE_FLASH) + ret = nand_update_bbt(mtd, ofs); + else { + chipnr = (int)(ofs >> chip->chip_shift); + chip->select_chip(mtd, chipnr); + + column = this->swap_block_mark ? mtd->writesize : 0; + + /* Write the block mark. */ + block_mark = this->data_buffer_dma; + block_mark[0] = 0; /* bad block marker */ + + /* Shift to get page */ + page = (int)(ofs >> chip->page_shift); + + chip->cmdfunc(mtd, NAND_CMD_SEQIN, column, page); + chip->write_buf(mtd, block_mark, 1); + chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); + + status = chip->waitfunc(mtd, chip); + if (status & NAND_STATUS_FAIL) + ret = -EIO; + + chip->select_chip(mtd, -1); + } + if (!ret) + mtd->ecc_stats.badblocks++; + + return ret; +} + +static int __devinit nand_boot_set_geometry(struct gpmi_nand_data *this) +{ + struct boot_rom_geometry *geometry = &this->rom_geometry; + + /* + * Set the boot block stride size. + * + * In principle, we should be reading this from the OTP bits, since + * that's where the ROM is going to get it. In fact, we don't have any + * way to read the OTP bits, so we go with the default and hope for the + * best. + */ + geometry->stride_size_in_pages = 64; + + /* + * Set the search area stride exponent. + * + * In principle, we should be reading this from the OTP bits, since + * that's where the ROM is going to get it. In fact, we don't have any + * way to read the OTP bits, so we go with the default and hope for the + * best. + */ + geometry->search_area_stride_exponent = 2; + return 0; +} + +static const char *fingerprint = "STMP"; +static int __devinit mx23_check_transcription_stamp(struct gpmi_nand_data *this) +{ + struct boot_rom_geometry *rom_geo = &this->rom_geometry; + struct device *dev = this->dev; + struct mtd_info *mtd = &this->mtd; + struct nand_chip *chip = &this->nand; + unsigned int search_area_size_in_strides; + unsigned int stride; + unsigned int page; + loff_t byte; + uint8_t *buffer = chip->buffers->databuf; + int saved_chip_number; + int found_an_ncb_fingerprint = false; + + /* Compute the number of strides in a search area. */ + search_area_size_in_strides = 1 << rom_geo->search_area_stride_exponent; + + saved_chip_number = this->current_chip; + chip->select_chip(mtd, 0); + + /* + * Loop through the first search area, looking for the NCB fingerprint. + */ + dev_dbg(dev, "Scanning for an NCB fingerprint...\n"); + + for (stride = 0; stride < search_area_size_in_strides; stride++) { + /* Compute the page and byte addresses. */ + page = stride * rom_geo->stride_size_in_pages; + byte = page * mtd->writesize; + + dev_dbg(dev, "Looking for a fingerprint in page 0x%x\n", page); + + /* + * Read the NCB fingerprint. The fingerprint is four bytes long + * and starts in the 12th byte of the page. + */ + chip->cmdfunc(mtd, NAND_CMD_READ0, 12, page); + chip->read_buf(mtd, buffer, strlen(fingerprint)); + + /* Look for the fingerprint. */ + if (!memcmp(buffer, fingerprint, strlen(fingerprint))) { + found_an_ncb_fingerprint = true; + break; + } + + } + + chip->select_chip(mtd, saved_chip_number); + + if (found_an_ncb_fingerprint) + dev_dbg(dev, "\tFound a fingerprint\n"); + else + dev_dbg(dev, "\tNo fingerprint found\n"); + return found_an_ncb_fingerprint; +} + +/* Writes a transcription stamp. */ +static int __devinit mx23_write_transcription_stamp(struct gpmi_nand_data *this) +{ + struct device *dev = this->dev; + struct boot_rom_geometry *rom_geo = &this->rom_geometry; + struct mtd_info *mtd = &this->mtd; + struct nand_chip *chip = &this->nand; + unsigned int block_size_in_pages; + unsigned int search_area_size_in_strides; + unsigned int search_area_size_in_pages; + unsigned int search_area_size_in_blocks; + unsigned int block; + unsigned int stride; + unsigned int page; + loff_t byte; + uint8_t *buffer = chip->buffers->databuf; + int saved_chip_number; + int status; + + /* Compute the search area geometry. */ + block_size_in_pages = mtd->erasesize / mtd->writesize; + search_area_size_in_strides = 1 << rom_geo->search_area_stride_exponent; + search_area_size_in_pages = search_area_size_in_strides * + rom_geo->stride_size_in_pages; + search_area_size_in_blocks = + (search_area_size_in_pages + (block_size_in_pages - 1)) / + block_size_in_pages; + + dev_dbg(dev, "Search Area Geometry :\n"); + dev_dbg(dev, "\tin Blocks : %u\n", search_area_size_in_blocks); + dev_dbg(dev, "\tin Strides: %u\n", search_area_size_in_strides); + dev_dbg(dev, "\tin Pages : %u\n", search_area_size_in_pages); + + /* Select chip 0. */ + saved_chip_number = this->current_chip; + chip->select_chip(mtd, 0); + + /* Loop over blocks in the first search area, erasing them. */ + dev_dbg(dev, "Erasing the search area...\n"); + + for (block = 0; block < search_area_size_in_blocks; block++) { + /* Compute the page address. */ + page = block * block_size_in_pages; + + /* Erase this block. */ + dev_dbg(dev, "\tErasing block 0x%x\n", block); + chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page); + chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1); + + /* Wait for the erase to finish. */ + status = chip->waitfunc(mtd, chip); + if (status & NAND_STATUS_FAIL) + dev_err(dev, "[%s] Erase failed.\n", __func__); + } + + /* Write the NCB fingerprint into the page buffer. */ + memset(buffer, ~0, mtd->writesize); + memset(chip->oob_poi, ~0, mtd->oobsize); + memcpy(buffer + 12, fingerprint, strlen(fingerprint)); + + /* Loop through the first search area, writing NCB fingerprints. */ + dev_dbg(dev, "Writing NCB fingerprints...\n"); + for (stride = 0; stride < search_area_size_in_strides; stride++) { + /* Compute the page and byte addresses. */ + page = stride * rom_geo->stride_size_in_pages; + byte = page * mtd->writesize; + + /* Write the first page of the current stride. */ + dev_dbg(dev, "Writing an NCB fingerprint in page 0x%x\n", page); + chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page); + chip->ecc.write_page_raw(mtd, chip, buffer); + chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1); + + /* Wait for the write to finish. */ + status = chip->waitfunc(mtd, chip); + if (status & NAND_STATUS_FAIL) + dev_err(dev, "[%s] Write failed.\n", __func__); + } + + /* Deselect chip 0. */ + chip->select_chip(mtd, saved_chip_number); + return 0; +} + +static int __devinit mx23_boot_init(struct gpmi_nand_data *this) +{ + struct device *dev = this->dev; + struct nand_chip *chip = &this->nand; + struct mtd_info *mtd = &this->mtd; + unsigned int block_count; + unsigned int block; + int chipnr; + int page; + loff_t byte; + uint8_t block_mark; + int ret = 0; + + /* + * If control arrives here, we can't use block mark swapping, which + * means we're forced to use transcription. First, scan for the + * transcription stamp. If we find it, then we don't have to do + * anything -- the block marks are already transcribed. + */ + if (mx23_check_transcription_stamp(this)) + return 0; + + /* + * If control arrives here, we couldn't find a transcription stamp, so + * so we presume the block marks are in the conventional location. + */ + dev_dbg(dev, "Transcribing bad block marks...\n"); + + /* Compute the number of blocks in the entire medium. */ + block_count = chip->chipsize >> chip->phys_erase_shift; + + /* + * Loop over all the blocks in the medium, transcribing block marks as + * we go. + */ + for (block = 0; block < block_count; block++) { + /* + * Compute the chip, page and byte addresses for this block's + * conventional mark. + */ + chipnr = block >> (chip->chip_shift - chip->phys_erase_shift); + page = block << (chip->phys_erase_shift - chip->page_shift); + byte = block << chip->phys_erase_shift; + + /* Send the command to read the conventional block mark. */ + chip->select_chip(mtd, chipnr); + chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page); + block_mark = chip->read_byte(mtd); + chip->select_chip(mtd, -1); + + /* + * Check if the block is marked bad. If so, we need to mark it + * again, but this time the result will be a mark in the + * location where we transcribe block marks. + */ + if (block_mark != 0xff) { + dev_dbg(dev, "Transcribing mark in block %u\n", block); + ret = chip->block_markbad(mtd, byte); + if (ret) + dev_err(dev, "Failed to mark block bad with " + "ret %d\n", ret); + } + } + + /* Write the stamp that indicates we've transcribed the block marks. */ + mx23_write_transcription_stamp(this); + return 0; +} + +static int __devinit nand_boot_init(struct gpmi_nand_data *this) +{ + nand_boot_set_geometry(this); + + /* This is ROM arch-specific initilization before the BBT scanning. */ + if (GPMI_IS_MX23(this)) + return mx23_boot_init(this); + return 0; +} + +static int __devinit gpmi_set_geometry(struct gpmi_nand_data *this) +{ + int ret; + + /* Free the temporary DMA memory for reading ID. */ + gpmi_free_dma_buffer(this); + + /* Set up the NFC geometry which is used by BCH. */ + ret = bch_set_geometry(this); + if (ret) { + pr_err("set geometry ret : %d\n", ret); + return ret; + } + + /* Alloc the new DMA buffers according to the pagesize and oobsize */ + return gpmi_alloc_dma_buffer(this); +} + +static int gpmi_pre_bbt_scan(struct gpmi_nand_data *this) +{ + int ret; + + /* Set up swap_block_mark, must be set before the gpmi_set_geometry() */ + if (GPMI_IS_MX23(this)) + this->swap_block_mark = false; + else + this->swap_block_mark = true; + + /* Set up the medium geometry */ + ret = gpmi_set_geometry(this); + if (ret) + return ret; + + /* NAND boot init, depends on the gpmi_set_geometry(). */ + return nand_boot_init(this); +} + +static int gpmi_scan_bbt(struct mtd_info *mtd) +{ + struct nand_chip *chip = mtd->priv; + struct gpmi_nand_data *this = chip->priv; + int ret; + + /* Prepare for the BBT scan. */ + ret = gpmi_pre_bbt_scan(this); + if (ret) + return ret; + + /* use the default BBT implementation */ + return nand_default_bbt(mtd); +} + +void gpmi_nfc_exit(struct gpmi_nand_data *this) +{ + nand_release(&this->mtd); + gpmi_free_dma_buffer(this); +} + +static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this) +{ + struct gpmi_nand_platform_data *pdata = this->pdata; + struct mtd_info *mtd = &this->mtd; + struct nand_chip *chip = &this->nand; + int ret; + + /* init current chip */ + this->current_chip = -1; + + /* init the MTD data structures */ + mtd->priv = chip; + mtd->name = "gpmi-nand"; + mtd->owner = THIS_MODULE; + + /* init the nand_chip{}, we don't support a 16-bit NAND Flash bus. */ + chip->priv = this; + chip->select_chip = gpmi_select_chip; + chip->cmd_ctrl = gpmi_cmd_ctrl; + chip->dev_ready = gpmi_dev_ready; + chip->read_byte = gpmi_read_byte; + chip->read_buf = gpmi_read_buf; + chip->write_buf = gpmi_write_buf; + chip->ecc.read_page = gpmi_ecc_read_page; + chip->ecc.write_page = gpmi_ecc_write_page; + chip->ecc.read_oob = gpmi_ecc_read_oob; + chip->ecc.write_oob = gpmi_ecc_write_oob; + chip->scan_bbt = gpmi_scan_bbt; + chip->badblock_pattern = &gpmi_bbt_descr; + chip->block_markbad = gpmi_block_markbad; + chip->options |= NAND_NO_SUBPAGE_WRITE; + chip->ecc.mode = NAND_ECC_HW; + chip->ecc.size = 1; + chip->ecc.layout = &gpmi_hw_ecclayout; + + /* Allocate a temporary DMA buffer for reading ID in the nand_scan() */ + this->bch_geometry.payload_size = 1024; + this->bch_geometry.auxiliary_size = 128; + ret = gpmi_alloc_dma_buffer(this); + if (ret) + goto err_out; + + ret = nand_scan(mtd, pdata->max_chip_count); + if (ret) { + pr_err("Chip scan failed\n"); + goto err_out; + } + + ret = mtd_device_parse_register(mtd, NULL, NULL, + pdata->partitions, pdata->partition_count); + if (ret) + goto err_out; + return 0; + +err_out: + gpmi_nfc_exit(this); + return ret; +} + +static int __devinit gpmi_nand_probe(struct platform_device *pdev) +{ + struct gpmi_nand_platform_data *pdata = pdev->dev.platform_data; + struct gpmi_nand_data *this; + int ret; + + this = kzalloc(sizeof(*this), GFP_KERNEL); + if (!this) { + pr_err("Failed to allocate per-device memory\n"); + return -ENOMEM; + } + + platform_set_drvdata(pdev, this); + this->pdev = pdev; + this->dev = &pdev->dev; + this->pdata = pdata; + + if (pdata->platform_init) { + ret = pdata->platform_init(); + if (ret) + goto platform_init_error; + } + + ret = acquire_resources(this); + if (ret) + goto exit_acquire_resources; + + ret = init_hardware(this); + if (ret) + goto exit_nfc_init; + + ret = gpmi_nfc_init(this); + if (ret) + goto exit_nfc_init; + + return 0; + +exit_nfc_init: + release_resources(this); +platform_init_error: +exit_acquire_resources: + platform_set_drvdata(pdev, NULL); + kfree(this); + return ret; +} + +static int __exit gpmi_nand_remove(struct platform_device *pdev) +{ + struct gpmi_nand_data *this = platform_get_drvdata(pdev); + + gpmi_nfc_exit(this); + release_resources(this); + platform_set_drvdata(pdev, NULL); + kfree(this); + return 0; +} + +static const struct platform_device_id gpmi_ids[] = { + { + .name = "imx23-gpmi-nand", + .driver_data = IS_MX23, + }, { + .name = "imx28-gpmi-nand", + .driver_data = IS_MX28, + }, {}, +}; + +static struct platform_driver gpmi_nand_driver = { + .driver = { + .name = "gpmi-nand", + }, + .probe = gpmi_nand_probe, + .remove = __exit_p(gpmi_nand_remove), + .id_table = gpmi_ids, +}; + +static int __init gpmi_nand_init(void) +{ + int err; + + err = platform_driver_register(&gpmi_nand_driver); + if (err == 0) + printk(KERN_INFO "GPMI NAND driver registered. (IMX)\n"); + else + pr_err("i.MX GPMI NAND driver registration failed\n"); + return err; +} + +static void __exit gpmi_nand_exit(void) +{ + platform_driver_unregister(&gpmi_nand_driver); +} + +module_init(gpmi_nand_init); +module_exit(gpmi_nand_exit); + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("i.MX GPMI NAND Flash Controller Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h new file mode 100644 index 000000000000..e023bccb7781 --- /dev/null +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h @@ -0,0 +1,273 @@ +/* + * Freescale GPMI NAND Flash Driver + * + * Copyright (C) 2010-2011 Freescale Semiconductor, Inc. + * Copyright (C) 2008 Embedded Alley Solutions, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#ifndef __DRIVERS_MTD_NAND_GPMI_NAND_H +#define __DRIVERS_MTD_NAND_GPMI_NAND_H + +#include +#include +#include +#include + +struct resources { + void *gpmi_regs; + void *bch_regs; + unsigned int bch_low_interrupt; + unsigned int bch_high_interrupt; + unsigned int dma_low_channel; + unsigned int dma_high_channel; + struct clk *clock; +}; + +/** + * struct bch_geometry - BCH geometry description. + * @gf_len: The length of Galois Field. (e.g., 13 or 14) + * @ecc_strength: A number that describes the strength of the ECC + * algorithm. + * @page_size: The size, in bytes, of a physical page, including + * both data and OOB. + * @metadata_size: The size, in bytes, of the metadata. + * @ecc_chunk_size: The size, in bytes, of a single ECC chunk. Note + * the first chunk in the page includes both data and + * metadata, so it's a bit larger than this value. + * @ecc_chunk_count: The number of ECC chunks in the page, + * @payload_size: The size, in bytes, of the payload buffer. + * @auxiliary_size: The size, in bytes, of the auxiliary buffer. + * @auxiliary_status_offset: The offset into the auxiliary buffer at which + * the ECC status appears. + * @block_mark_byte_offset: The byte offset in the ECC-based page view at + * which the underlying physical block mark appears. + * @block_mark_bit_offset: The bit offset into the ECC-based page view at + * which the underlying physical block mark appears. + */ +struct bch_geometry { + unsigned int gf_len; + unsigned int ecc_strength; + unsigned int page_size; + unsigned int metadata_size; + unsigned int ecc_chunk_size; + unsigned int ecc_chunk_count; + unsigned int payload_size; + unsigned int auxiliary_size; + unsigned int auxiliary_status_offset; + unsigned int block_mark_byte_offset; + unsigned int block_mark_bit_offset; +}; + +/** + * struct boot_rom_geometry - Boot ROM geometry description. + * @stride_size_in_pages: The size of a boot block stride, in pages. + * @search_area_stride_exponent: The logarithm to base 2 of the size of a + * search area in boot block strides. + */ +struct boot_rom_geometry { + unsigned int stride_size_in_pages; + unsigned int search_area_stride_exponent; +}; + +/* DMA operations types */ +enum dma_ops_type { + DMA_FOR_COMMAND = 1, + DMA_FOR_READ_DATA, + DMA_FOR_WRITE_DATA, + DMA_FOR_READ_ECC_PAGE, + DMA_FOR_WRITE_ECC_PAGE +}; + +/** + * struct nand_timing - Fundamental timing attributes for NAND. + * @data_setup_in_ns: The data setup time, in nanoseconds. Usually the + * maximum of tDS and tWP. A negative value + * indicates this characteristic isn't known. + * @data_hold_in_ns: The data hold time, in nanoseconds. Usually the + * maximum of tDH, tWH and tREH. A negative value + * indicates this characteristic isn't known. + * @address_setup_in_ns: The address setup time, in nanoseconds. Usually + * the maximum of tCLS, tCS and tALS. A negative + * value indicates this characteristic isn't known. + * @gpmi_sample_delay_in_ns: A GPMI-specific timing parameter. A negative value + * indicates this characteristic isn't known. + * @tREA_in_ns: tREA, in nanoseconds, from the data sheet. A + * negative value indicates this characteristic isn't + * known. + * @tRLOH_in_ns: tRLOH, in nanoseconds, from the data sheet. A + * negative value indicates this characteristic isn't + * known. + * @tRHOH_in_ns: tRHOH, in nanoseconds, from the data sheet. A + * negative value indicates this characteristic isn't + * known. + */ +struct nand_timing { + int8_t data_setup_in_ns; + int8_t data_hold_in_ns; + int8_t address_setup_in_ns; + int8_t gpmi_sample_delay_in_ns; + int8_t tREA_in_ns; + int8_t tRLOH_in_ns; + int8_t tRHOH_in_ns; +}; + +struct gpmi_nand_data { + /* System Interface */ + struct device *dev; + struct platform_device *pdev; + struct gpmi_nand_platform_data *pdata; + + /* Resources */ + struct resources resources; + + /* Flash Hardware */ + struct nand_timing timing; + + /* BCH */ + struct bch_geometry bch_geometry; + struct completion bch_done; + + /* NAND Boot issue */ + bool swap_block_mark; + struct boot_rom_geometry rom_geometry; + + /* MTD / NAND */ + struct nand_chip nand; + struct mtd_info mtd; + + /* General-use Variables */ + int current_chip; + unsigned int command_length; + + /* passed from upper layer */ + uint8_t *upper_buf; + int upper_len; + + /* for DMA operations */ + bool direct_dma_map_ok; + + struct scatterlist cmd_sgl; + char *cmd_buffer; + + struct scatterlist data_sgl; + char *data_buffer_dma; + + void *page_buffer_virt; + dma_addr_t page_buffer_phys; + unsigned int page_buffer_size; + + void *payload_virt; + dma_addr_t payload_phys; + + void *auxiliary_virt; + dma_addr_t auxiliary_phys; + + /* DMA channels */ +#define DMA_CHANS 8 + struct dma_chan *dma_chans[DMA_CHANS]; + struct mxs_dma_data dma_data; + enum dma_ops_type last_dma_type; + enum dma_ops_type dma_type; + struct completion dma_done; + + /* private */ + void *private; +}; + +/** + * struct gpmi_nfc_hardware_timing - GPMI hardware timing parameters. + * @data_setup_in_cycles: The data setup time, in cycles. + * @data_hold_in_cycles: The data hold time, in cycles. + * @address_setup_in_cycles: The address setup time, in cycles. + * @use_half_periods: Indicates the clock is running slowly, so the + * NFC DLL should use half-periods. + * @sample_delay_factor: The sample delay factor. + */ +struct gpmi_nfc_hardware_timing { + uint8_t data_setup_in_cycles; + uint8_t data_hold_in_cycles; + uint8_t address_setup_in_cycles; + bool use_half_periods; + uint8_t sample_delay_factor; +}; + +/** + * struct timing_threshod - Timing threshold + * @max_data_setup_cycles: The maximum number of data setup cycles that + * can be expressed in the hardware. + * @internal_data_setup_in_ns: The time, in ns, that the NFC hardware requires + * for data read internal setup. In the Reference + * Manual, see the chapter "High-Speed NAND + * Timing" for more details. + * @max_sample_delay_factor: The maximum sample delay factor that can be + * expressed in the hardware. + * @max_dll_clock_period_in_ns: The maximum period of the GPMI clock that the + * sample delay DLL hardware can possibly work + * with (the DLL is unusable with longer periods). + * If the full-cycle period is greater than HALF + * this value, the DLL must be configured to use + * half-periods. + * @max_dll_delay_in_ns: The maximum amount of delay, in ns, that the + * DLL can implement. + * @clock_frequency_in_hz: The clock frequency, in Hz, during the current + * I/O transaction. If no I/O transaction is in + * progress, this is the clock frequency during + * the most recent I/O transaction. + */ +struct timing_threshod { + const unsigned int max_chip_count; + const unsigned int max_data_setup_cycles; + const unsigned int internal_data_setup_in_ns; + const unsigned int max_sample_delay_factor; + const unsigned int max_dll_clock_period_in_ns; + const unsigned int max_dll_delay_in_ns; + unsigned long clock_frequency_in_hz; + +}; + +/* Common Services */ +extern int common_nfc_set_geometry(struct gpmi_nand_data *); +extern struct dma_chan *get_dma_chan(struct gpmi_nand_data *); +extern void prepare_data_dma(struct gpmi_nand_data *, + enum dma_data_direction dr); +extern int start_dma_without_bch_irq(struct gpmi_nand_data *, + struct dma_async_tx_descriptor *); +extern int start_dma_with_bch_irq(struct gpmi_nand_data *, + struct dma_async_tx_descriptor *); + +/* GPMI-NAND helper function library */ +extern int gpmi_init(struct gpmi_nand_data *); +extern void gpmi_clear_bch(struct gpmi_nand_data *); +extern void gpmi_dump_info(struct gpmi_nand_data *); +extern int bch_set_geometry(struct gpmi_nand_data *); +extern int gpmi_is_ready(struct gpmi_nand_data *, unsigned chip); +extern int gpmi_send_command(struct gpmi_nand_data *); +extern void gpmi_begin(struct gpmi_nand_data *); +extern void gpmi_end(struct gpmi_nand_data *); +extern int gpmi_read_data(struct gpmi_nand_data *); +extern int gpmi_send_data(struct gpmi_nand_data *); +extern int gpmi_send_page(struct gpmi_nand_data *, + dma_addr_t payload, dma_addr_t auxiliary); +extern int gpmi_read_page(struct gpmi_nand_data *, + dma_addr_t payload, dma_addr_t auxiliary); + +/* BCH : Status Block Completion Codes */ +#define STATUS_GOOD 0x00 +#define STATUS_ERASED 0xff +#define STATUS_UNCORRECTABLE 0xfe + +/* Use the platform_id to distinguish different Archs. */ +#define IS_MX23 0x1 +#define IS_MX28 0x2 +#define GPMI_IS_MX23(x) ((x)->pdev->id_entry->driver_data == IS_MX23) +#define GPMI_IS_MX28(x) ((x)->pdev->id_entry->driver_data == IS_MX28) +#endif -- cgit v1.2.3 From 9ce244b3fb416ce6600e05612ac46b9692dcc638 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:37 -0700 Subject: mtd: support writing OOB without ECC This fixes issues with `nandwrite -n -o' and the MEMWRITEOOB[64] ioctls on hardware that writes ECC when writing OOB. The problem arises as follows: `nandwrite -n' can write page data to flash without applying ECC, but when used with the `-o' option, ECC is applied (incorrectly), contrary to the `--noecc' option. I found that this is the case because my hardware computes and writes ECC data to flash upon either OOB write or page write. Thus, to support a proper "no ECC" write, my driver must know when we're performing a raw OOB write vs. a normal ECC OOB write. However, MTD does not pass any raw mode information to the write_oob functions. This patch addresses the problems by: 1) Passing MTD_OOB_RAW down to lower layers, instead of just defaulting to MTD_OOB_PLACE 2) Handling MTD_OOB_RAW within the NAND layer's `nand_do_write_oob' 3) Adding a new (replaceable) function pointer in struct ecc_ctrl; this function should support writing OOB without ECC data. Current hardware often can use the same OOB write function when writing either with or without ECC This was tested with nandsim as well as on actual SLC NAND. Signed-off-by: Brian Norris Cc: Jim Quinlan Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 3 ++- drivers/mtd/nand/nand_base.c | 10 +++++++++- 2 files changed, 11 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index b20625475132..bcb7f05fd27b 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -391,6 +391,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, uint64_t start, uint32_t length, void __user *ptr, uint32_t __user *retp) { + struct mtd_file_info *mfi = file->private_data; struct mtd_oob_ops ops; uint32_t retlen; int ret = 0; @@ -412,7 +413,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, ops.ooblen = length; ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; - ops.mode = MTD_OOB_PLACE; + ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OOB_RAW : MTD_OOB_PLACE; if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) return -EINVAL; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7f2691f94322..b61a7c7bd097 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2404,7 +2404,11 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, chip->pagebuf = -1; nand_fill_oob(mtd, ops->oobbuf, ops->ooblen, ops); - status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask); + + if (ops->mode == MTD_OOB_RAW) + status = chip->ecc.write_oob_raw(mtd, chip, page & chip->pagemask); + else + status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask); if (status) return status; @@ -3380,6 +3384,10 @@ int nand_scan_tail(struct mtd_info *mtd) BUG(); } + /* For many systems, the standard OOB write also works for raw */ + if (!chip->ecc.write_oob_raw) + chip->ecc.write_oob_raw = chip->ecc.write_oob; + /* * The number of bytes available for a client to place data into * the out of band area. -- cgit v1.2.3 From c46f6483d21e93400e4a110de7902830173d53b0 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:38 -0700 Subject: mtd: support reading OOB without ECC This fixes issues with `nanddump -n' and the MEMREADOOB[64] ioctls on hardware that performs error correction when reading only OOB data. A driver for such hardware needs to know when we're doing a RAW vs. a normal write, but mtd_do_read_oob does not pass such information to the lower layers (e.g., NAND). We should pass MTD_OOB_RAW or MTD_OOB_PLACE based on the MTD file mode. For now, most drivers can get away with just setting: chip->ecc.read_oob_raw = chip->ecc.read_oob This is done by default; but for systems that behave as described above, you must supply your own replacement function. This was tested with nandsim as well as on actual SLC NAND. Signed-off-by: Brian Norris Cc: Jim Quinlan Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 14 ++++++++------ drivers/mtd/nand/nand_base.c | 7 ++++++- 2 files changed, 14 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index bcb7f05fd27b..d0eaef67b9bb 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -435,9 +435,11 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, return ret; } -static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, - uint32_t length, void __user *ptr, uint32_t __user *retp) +static int mtd_do_readoob(struct file *file, struct mtd_info *mtd, + uint64_t start, uint32_t length, void __user *ptr, + uint32_t __user *retp) { + struct mtd_file_info *mfi = file->private_data; struct mtd_oob_ops ops; int ret = 0; @@ -455,7 +457,7 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start, ops.ooblen = length; ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; - ops.mode = MTD_OOB_PLACE; + ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OOB_RAW : MTD_OOB_PLACE; if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) return -EINVAL; @@ -716,7 +718,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) if (copy_from_user(&buf, argp, sizeof(buf))) ret = -EFAULT; else - ret = mtd_do_readoob(mtd, buf.start, buf.length, + ret = mtd_do_readoob(file, mtd, buf.start, buf.length, buf.ptr, &buf_user->start); break; } @@ -743,7 +745,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) if (copy_from_user(&buf, argp, sizeof(buf))) ret = -EFAULT; else - ret = mtd_do_readoob(mtd, buf.start, buf.length, + ret = mtd_do_readoob(file, mtd, buf.start, buf.length, (void __user *)(uintptr_t)buf.usr_ptr, &buf_user->length); break; @@ -1029,7 +1031,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd, if (copy_from_user(&buf, argp, sizeof(buf))) ret = -EFAULT; else - ret = mtd_do_readoob(mtd, buf.start, + ret = mtd_do_readoob(file, mtd, buf.start, buf.length, compat_ptr(buf.ptr), &buf_user->start); break; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index b61a7c7bd097..ad40607f5f24 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1787,7 +1787,10 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, page = realpage & chip->pagemask; while (1) { - sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd); + if (ops->mode == MTD_OOB_RAW) + sndcmd = chip->ecc.read_oob_raw(mtd, chip, page, sndcmd); + else + sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd); len = min(len, readlen); buf = nand_transfer_oob(chip, buf, ops, len); @@ -3385,6 +3388,8 @@ int nand_scan_tail(struct mtd_info *mtd) } /* For many systems, the standard OOB write also works for raw */ + if (!chip->ecc.read_oob_raw) + chip->ecc.read_oob_raw = chip->ecc.read_oob; if (!chip->ecc.write_oob_raw) chip->ecc.write_oob_raw = chip->ecc.write_oob; -- cgit v1.2.3 From 905c6bcdb42616da717a9bd6c0c5870dbd90b09e Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:39 -0700 Subject: mtd: move mtd_oob_mode_t to shared kernel/user space We will want to use the MTD_OOB_{PLACE,AUTO,RAW} modes in user-space applications through the introduction of new ioctls, so we should make this enum a shared type. This enum is now anonymous. Artem: tweaked the patch. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/onenand/onenand_base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index de98791f8101..493901a59e6e 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1351,7 +1351,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, struct mtd_ecc_stats stats; int read = 0, thislen, column, oobsize; size_t len = ops->ooblen; - mtd_oob_mode_t mode = ops->mode; + unsigned int mode = ops->mode; u_char *buf = ops->oobbuf; int ret = 0, readcmd; @@ -2074,7 +2074,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, u_char *oobbuf; size_t len = ops->ooblen; const u_char *buf = ops->oobbuf; - mtd_oob_mode_t mode = ops->mode; + unsigned int mode = ops->mode; to += ops->ooboffs; -- cgit v1.2.3 From 0612b9ddc2eeda014dd805c87c752b342d8f80f0 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:40 -0700 Subject: mtd: rename MTD_OOB_* to MTD_OPS_* These modes are not necessarily for OOB only. Particularly, MTD_OOB_RAW affected operations on in-band page data as well. To clarify these options and to emphasize that their effect is applied per-operation, we change the primary prefix to MTD_OPS_. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/doc2000.c | 4 ++-- drivers/mtd/devices/doc2001.c | 4 ++-- drivers/mtd/devices/doc2001plus.c | 4 ++-- drivers/mtd/inftlcore.c | 6 ++--- drivers/mtd/mtdchar.c | 10 +++++---- drivers/mtd/mtdpart.c | 2 +- drivers/mtd/mtdswap.c | 6 ++--- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +- drivers/mtd/nand/nand_base.c | 40 +++++++++++++++++----------------- drivers/mtd/nand/nand_bbt.c | 8 +++---- drivers/mtd/nand/sm_common.c | 2 +- drivers/mtd/nftlcore.c | 6 ++--- drivers/mtd/onenand/onenand_base.c | 38 ++++++++++++++++---------------- drivers/mtd/onenand/onenand_bbt.c | 2 +- drivers/mtd/sm_ftl.c | 4 ++-- drivers/mtd/ssfdc.c | 2 +- drivers/mtd/tests/mtd_oobtest.c | 24 ++++++++++---------- drivers/mtd/tests/mtd_readtest.c | 2 +- drivers/staging/spectra/lld_mtd.c | 6 ++--- 19 files changed, 87 insertions(+), 85 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c index 8c9703309496..e9fad9151219 100644 --- a/drivers/mtd/devices/doc2000.c +++ b/drivers/mtd/devices/doc2000.c @@ -927,7 +927,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, uint8_t *buf = ops->oobbuf; size_t len = ops->len; - BUG_ON(ops->mode != MTD_OOB_PLACE); + BUG_ON(ops->mode != MTD_OPS_PLACE_OOB); ofs += ops->ooboffs; @@ -1091,7 +1091,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, struct DiskOnChip *this = mtd->priv; int ret; - BUG_ON(ops->mode != MTD_OOB_PLACE); + BUG_ON(ops->mode != MTD_OPS_PLACE_OOB); mutex_lock(&this->lock); ret = doc_write_oob_nolock(mtd, ofs + ops->ooboffs, ops->len, diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c index 3d2b459cea92..a3f7a27499be 100644 --- a/drivers/mtd/devices/doc2001.c +++ b/drivers/mtd/devices/doc2001.c @@ -631,7 +631,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, uint8_t *buf = ops->oobbuf; size_t len = ops->len; - BUG_ON(ops->mode != MTD_OOB_PLACE); + BUG_ON(ops->mode != MTD_OPS_PLACE_OOB); ofs += ops->ooboffs; @@ -689,7 +689,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, uint8_t *buf = ops->oobbuf; size_t len = ops->len; - BUG_ON(ops->mode != MTD_OOB_PLACE); + BUG_ON(ops->mode != MTD_OPS_PLACE_OOB); ofs += ops->ooboffs; diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c index d28c9d99979f..99351bc3e0ed 100644 --- a/drivers/mtd/devices/doc2001plus.c +++ b/drivers/mtd/devices/doc2001plus.c @@ -834,7 +834,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs, uint8_t *buf = ops->oobbuf; size_t len = ops->len; - BUG_ON(ops->mode != MTD_OOB_PLACE); + BUG_ON(ops->mode != MTD_OPS_PLACE_OOB); ofs += ops->ooboffs; @@ -919,7 +919,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs, uint8_t *buf = ops->oobbuf; size_t len = ops->len; - BUG_ON(ops->mode != MTD_OOB_PLACE); + BUG_ON(ops->mode != MTD_OPS_PLACE_OOB); ofs += ops->ooboffs; diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index 21aa981e42cd..652065e47a79 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -152,7 +152,7 @@ int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = offs & (mtd->writesize - 1); ops.ooblen = len; ops.oobbuf = buf; @@ -172,7 +172,7 @@ int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = offs & (mtd->writesize - 1); ops.ooblen = len; ops.oobbuf = buf; @@ -192,7 +192,7 @@ static int inftl_write(struct mtd_info *mtd, loff_t offs, size_t len, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = offs; ops.ooblen = mtd->oobsize; ops.oobbuf = oob; diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index d0eaef67b9bb..9b76438a3c27 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -221,7 +221,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t { struct mtd_oob_ops ops; - ops.mode = MTD_OOB_RAW; + ops.mode = MTD_OPS_RAW; ops.datbuf = kbuf; ops.oobbuf = NULL; ops.len = len; @@ -317,7 +317,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count { struct mtd_oob_ops ops; - ops.mode = MTD_OOB_RAW; + ops.mode = MTD_OPS_RAW; ops.datbuf = kbuf; ops.oobbuf = NULL; ops.ooboffs = 0; @@ -413,7 +413,8 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, ops.ooblen = length; ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; - ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OOB_RAW : MTD_OOB_PLACE; + ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OPS_RAW : + MTD_OPS_PLACE_OOB; if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) return -EINVAL; @@ -457,7 +458,8 @@ static int mtd_do_readoob(struct file *file, struct mtd_info *mtd, ops.ooblen = length; ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; - ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OOB_RAW : MTD_OOB_PLACE; + ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OPS_RAW : + MTD_OPS_PLACE_OOB; if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) return -EINVAL; diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index c90b7ba362d7..cd7785aa1649 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -130,7 +130,7 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from, if (ops->oobbuf) { size_t len, pages; - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) len = mtd->oobavail; else len = mtd->oobsize; diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index 9961063b90a2..910309f260f8 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -350,7 +350,7 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb) ops.oobbuf = d->oob_buf; ops.ooboffs = 0; ops.datbuf = NULL; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ret = mtdswap_read_oob(d, offset, &ops); @@ -389,7 +389,7 @@ static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb, ops.ooboffs = 0; ops.oobbuf = (uint8_t *)&n; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.datbuf = NULL; if (marker == MTDSWAP_TYPE_CLEAN) { @@ -931,7 +931,7 @@ static unsigned int mtdswap_eblk_passes(struct mtdswap_dev *d, struct mtd_oob_ops ops; int ret; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = mtd->writesize; ops.ooblen = mtd->ecclayout->oobavail; ops.ooboffs = 0; diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index 5c0fe0dd7057..071b63420f0e 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -1104,7 +1104,7 @@ gpmi_ecc_write_oob(struct mtd_info *mtd, struct nand_chip *chip, int page) * The BCH will use all the (page + oob). * Our gpmi_hw_ecclayout can only prohibit the JFFS2 to write the oob. * But it can not stop some ioctls such MEMWRITEOOB which uses - * MTD_OOB_PLACE. So We have to implement this function to prohibit + * MTD_OPS_PLACE_OOB. So We have to implement this function to prohibit * these ioctls too. */ return -EPERM; diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index ad40607f5f24..686b55770113 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1382,12 +1382,12 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob, { switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_RAW: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_RAW: memcpy(oob, chip->oob_poi + ops->ooboffs, len); return oob + len; - case MTD_OOB_AUTO: { + case MTD_OPS_AUTO_OOB: { struct nand_oobfree *free = chip->ecc.layout->oobfree; uint32_t boffs = 0, roffs = ops->ooboffs; size_t bytes = 0; @@ -1437,7 +1437,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, int ret = 0; uint32_t readlen = ops->len; uint32_t oobreadlen = ops->ooblen; - uint32_t max_oobsize = ops->mode == MTD_OOB_AUTO ? + uint32_t max_oobsize = ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize; uint8_t *bufpoi, *oob, *buf; @@ -1469,7 +1469,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, } /* Now read the page into the buffer */ - if (unlikely(ops->mode == MTD_OOB_RAW)) + if (unlikely(ops->mode == MTD_OPS_RAW)) ret = chip->ecc.read_page_raw(mtd, chip, bufpoi, page); else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob) @@ -1759,7 +1759,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, stats = mtd->ecc_stats; - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) len = chip->ecc.layout->oobavail; else len = mtd->oobsize; @@ -1787,7 +1787,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from, page = realpage & chip->pagemask; while (1) { - if (ops->mode == MTD_OOB_RAW) + if (ops->mode == MTD_OPS_RAW) sndcmd = chip->ecc.read_oob_raw(mtd, chip, page, sndcmd); else sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd); @@ -1865,9 +1865,9 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from, nand_get_device(chip, mtd, FL_READING); switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_AUTO: - case MTD_OOB_RAW: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: + case MTD_OPS_RAW: break; default: @@ -2113,12 +2113,12 @@ static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len, switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_RAW: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_RAW: memcpy(chip->oob_poi + ops->ooboffs, oob, len); return oob + len; - case MTD_OOB_AUTO: { + case MTD_OPS_AUTO_OOB: { struct nand_oobfree *free = chip->ecc.layout->oobfree; uint32_t boffs = 0, woffs = ops->ooboffs; size_t bytes = 0; @@ -2167,7 +2167,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, uint32_t writelen = ops->len; uint32_t oobwritelen = ops->ooblen; - uint32_t oobmaxlen = ops->mode == MTD_OOB_AUTO ? + uint32_t oobmaxlen = ops->mode == MTD_OPS_AUTO_OOB ? mtd->oobavail : mtd->oobsize; uint8_t *oob = ops->oobbuf; @@ -2236,7 +2236,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, } ret = chip->write_page(mtd, chip, wbuf, page, cached, - (ops->mode == MTD_OOB_RAW)); + (ops->mode == MTD_OPS_RAW)); if (ret) break; @@ -2356,7 +2356,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to, (int)ops->ooblen); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) len = chip->ecc.layout->oobavail; else len = mtd->oobsize; @@ -2408,7 +2408,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, nand_fill_oob(mtd, ops->oobbuf, ops->ooblen, ops); - if (ops->mode == MTD_OOB_RAW) + if (ops->mode == MTD_OPS_RAW) status = chip->ecc.write_oob_raw(mtd, chip, page & chip->pagemask); else status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask); @@ -2445,9 +2445,9 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to, nand_get_device(chip, mtd, FL_WRITING); switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_AUTO: - case MTD_OOB_RAW: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: + case MTD_OPS_RAW: break; default: diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 6aa8125772b8..c488bcb84c90 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -302,7 +302,7 @@ static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_RAW; + ops.mode = MTD_OPS_RAW; ops.ooboffs = 0; ops.ooblen = mtd->oobsize; @@ -350,7 +350,7 @@ static int scan_write_bbt(struct mtd_info *mtd, loff_t offs, size_t len, { struct mtd_oob_ops ops; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = 0; ops.ooblen = mtd->oobsize; ops.datbuf = buf; @@ -433,7 +433,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, ops.oobbuf = buf; ops.ooboffs = 0; ops.datbuf = NULL; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; for (j = 0; j < len; j++) { /* @@ -672,7 +672,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, ops.ooblen = mtd->oobsize; ops.ooboffs = 0; ops.datbuf = NULL; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; if (!rcode) rcode = 0xff; diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c index b6332e83b289..2c438ef53cf5 100644 --- a/drivers/mtd/nand/sm_common.c +++ b/drivers/mtd/nand/sm_common.c @@ -47,7 +47,7 @@ static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs) /* As long as this function is called on erase block boundaries it will work correctly for 256 byte nand */ - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = 0; ops.ooblen = mtd->oobsize; ops.oobbuf = (void *)&oob; diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index 93d6fc68b892..272e3c03e324 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -147,7 +147,7 @@ int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = offs & mask; ops.ooblen = len; ops.oobbuf = buf; @@ -168,7 +168,7 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = offs & mask; ops.ooblen = len; ops.oobbuf = buf; @@ -191,7 +191,7 @@ static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len, struct mtd_oob_ops ops; int res; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooboffs = offs & mask; ops.ooblen = mtd->oobsize; ops.oobbuf = oob; diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 493901a59e6e..a52aa0f6b0c3 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1125,7 +1125,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, (int)len); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -1170,7 +1170,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, thisooblen = oobsize - oobcolumn; thisooblen = min_t(int, thisooblen, ooblen - oobread); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen); else this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen); @@ -1229,7 +1229,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from, (int)len); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -1291,7 +1291,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, thisooblen = oobsize - oobcolumn; thisooblen = min_t(int, thisooblen, ooblen - oobread); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen); else this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen); @@ -1363,7 +1363,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, /* Initialize return length value */ ops->oobretlen = 0; - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -1409,7 +1409,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, break; } - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) onenand_transfer_auto_oob(mtd, buf, column, thislen); else this->read_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen); @@ -1487,10 +1487,10 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from, int ret; switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_AUTO: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: break; - case MTD_OOB_RAW: + case MTD_OPS_RAW: /* Not implemented yet */ default: return -EINVAL; @@ -1908,7 +1908,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, if (!len) return 0; - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -1945,7 +1945,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to, /* We send data to spare ram with oobsize * to prevent byte access */ memset(oobbuf, 0xff, mtd->oobsize); - if (ops->mode == MTD_OOB_AUTO) + if (ops->mode == MTD_OPS_AUTO_OOB) onenand_fill_auto_oob(mtd, oobbuf, oob, oobcolumn, thisooblen); else memcpy(oobbuf + oobcolumn, oob, thisooblen); @@ -2084,7 +2084,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, /* Initialize retlen, in case of early exit */ ops->oobretlen = 0; - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) oobsize = this->ecclayout->oobavail; else oobsize = mtd->oobsize; @@ -2128,7 +2128,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to, /* We send data to spare ram with oobsize * to prevent byte access */ memset(oobbuf, 0xff, mtd->oobsize); - if (mode == MTD_OOB_AUTO) + if (mode == MTD_OPS_AUTO_OOB) onenand_fill_auto_oob(mtd, oobbuf, buf, column, thislen); else memcpy(oobbuf + column, buf, thislen); @@ -2217,10 +2217,10 @@ static int onenand_write_oob(struct mtd_info *mtd, loff_t to, int ret; switch (ops->mode) { - case MTD_OOB_PLACE: - case MTD_OOB_AUTO: + case MTD_OPS_PLACE_OOB: + case MTD_OPS_AUTO_OOB: break; - case MTD_OOB_RAW: + case MTD_OPS_RAW: /* Not implemented yet */ default: return -EINVAL; @@ -2603,7 +2603,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) struct bbm_info *bbm = this->bbm; u_char buf[2] = {0, 0}; struct mtd_oob_ops ops = { - .mode = MTD_OOB_PLACE, + .mode = MTD_OPS_PLACE_OOB, .ooblen = 2, .oobbuf = buf, .ooboffs = 0, @@ -3171,7 +3171,7 @@ static int do_otp_lock(struct mtd_info *mtd, loff_t from, size_t len, this->command(mtd, ONENAND_CMD_RESET, 0, 0); this->wait(mtd, FL_RESETING); } else { - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooblen = len; ops.oobbuf = buf; ops.ooboffs = 0; @@ -3677,7 +3677,7 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int int i, ret; int block; struct mtd_oob_ops ops = { - .mode = MTD_OOB_PLACE, + .mode = MTD_OPS_PLACE_OOB, .ooboffs = 0, .ooblen = mtd->oobsize, .datbuf = NULL, diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c index 3b9a2a9573c6..09956c4fd850 100644 --- a/drivers/mtd/onenand/onenand_bbt.c +++ b/drivers/mtd/onenand/onenand_bbt.c @@ -80,7 +80,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr startblock = 0; from = 0; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.ooblen = readlen; ops.oobbuf = buf; ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0; diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index 311a9e39a956..d927641cb0f5 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -256,7 +256,7 @@ static int sm_read_sector(struct sm_ftl *ftl, if (!oob) oob = &tmp_oob; - ops.mode = ftl->smallpagenand ? MTD_OOB_RAW : MTD_OOB_PLACE; + ops.mode = ftl->smallpagenand ? MTD_OPS_RAW : MTD_OPS_PLACE_OOB; ops.ooboffs = 0; ops.ooblen = SM_OOB_SIZE; ops.oobbuf = (void *)oob; @@ -336,7 +336,7 @@ static int sm_write_sector(struct sm_ftl *ftl, if (ftl->unstable) return -EIO; - ops.mode = ftl->smallpagenand ? MTD_OOB_RAW : MTD_OOB_PLACE; + ops.mode = ftl->smallpagenand ? MTD_OPS_RAW : MTD_OPS_PLACE_OOB; ops.len = SM_SECTOR_SIZE; ops.datbuf = buffer; ops.ooboffs = 0; diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c index 5f917f0a9609..976e3d28b962 100644 --- a/drivers/mtd/ssfdc.c +++ b/drivers/mtd/ssfdc.c @@ -169,7 +169,7 @@ static int read_raw_oob(struct mtd_info *mtd, loff_t offs, uint8_t *buf) struct mtd_oob_ops ops; int ret; - ops.mode = MTD_OOB_RAW; + ops.mode = MTD_OPS_RAW; ops.ooboffs = 0; ops.ooblen = OOB_SIZE; ops.oobbuf = buf; diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c index dec92ae6111a..6bcff42296a9 100644 --- a/drivers/mtd/tests/mtd_oobtest.c +++ b/drivers/mtd/tests/mtd_oobtest.c @@ -131,7 +131,7 @@ static int write_eraseblock(int ebnum) for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) { set_random_data(writebuf, use_len); - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = use_len; @@ -184,7 +184,7 @@ static int verify_eraseblock(int ebnum) for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) { set_random_data(writebuf, use_len); - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = use_len; @@ -211,7 +211,7 @@ static int verify_eraseblock(int ebnum) if (use_offset != 0 || use_len < mtd->ecclayout->oobavail) { int k; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->ecclayout->oobavail; @@ -276,7 +276,7 @@ static int verify_eraseblock_in_one_go(int ebnum) size_t len = mtd->ecclayout->oobavail * pgcnt; set_random_data(writebuf, len); - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = len; @@ -507,7 +507,7 @@ static int __init mtd_oobtest_init(void) addr0 += mtd->erasesize; /* Attempt to write off end of OOB */ - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = 1; @@ -527,7 +527,7 @@ static int __init mtd_oobtest_init(void) } /* Attempt to read off end of OOB */ - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = 1; @@ -551,7 +551,7 @@ static int __init mtd_oobtest_init(void) "block is bad\n"); else { /* Attempt to write off end of device */ - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->ecclayout->oobavail + 1; @@ -571,7 +571,7 @@ static int __init mtd_oobtest_init(void) } /* Attempt to read off end of device */ - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->ecclayout->oobavail + 1; @@ -595,7 +595,7 @@ static int __init mtd_oobtest_init(void) goto out; /* Attempt to write off end of device */ - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->ecclayout->oobavail; @@ -615,7 +615,7 @@ static int __init mtd_oobtest_init(void) } /* Attempt to read off end of device */ - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->ecclayout->oobavail; @@ -655,7 +655,7 @@ static int __init mtd_oobtest_init(void) addr = (i + 1) * mtd->erasesize - mtd->writesize; for (pg = 0; pg < cnt; ++pg) { set_random_data(writebuf, sz); - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = sz; @@ -683,7 +683,7 @@ static int __init mtd_oobtest_init(void) continue; set_random_data(writebuf, mtd->ecclayout->oobavail * 2); addr = (i + 1) * mtd->erasesize - mtd->writesize; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->ecclayout->oobavail * 2; diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index 836792d1d60e..587e1e371c6c 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -66,7 +66,7 @@ static int read_eraseblock_by_page(int ebnum) if (mtd->oobsize) { struct mtd_oob_ops ops; - ops.mode = MTD_OOB_PLACE; + ops.mode = MTD_OPS_PLACE_OOB; ops.len = 0; ops.retlen = 0; ops.ooblen = mtd->oobsize; diff --git a/drivers/staging/spectra/lld_mtd.c b/drivers/staging/spectra/lld_mtd.c index 2bd34662beb5..a9c309a167c2 100644 --- a/drivers/staging/spectra/lld_mtd.c +++ b/drivers/staging/spectra/lld_mtd.c @@ -340,7 +340,7 @@ u16 mtd_Read_Page_Main_Spare(u8 *read_data, u32 Block, struct mtd_oob_ops ops; int ret; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.datbuf = read_data; ops.len = DeviceInfo.wPageDataSize; ops.oobbuf = read_data + DeviceInfo.wPageDataSize + BTSIG_OFFSET; @@ -400,7 +400,7 @@ u16 mtd_Write_Page_Main_Spare(u8 *write_data, u32 Block, struct mtd_oob_ops ops; int ret; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.datbuf = write_data; ops.len = DeviceInfo.wPageDataSize; ops.oobbuf = write_data + DeviceInfo.wPageDataSize + BTSIG_OFFSET; @@ -473,7 +473,7 @@ u16 mtd_Read_Page_Spare(u8 *read_data, u32 Block, struct mtd_oob_ops ops; int ret; - ops.mode = MTD_OOB_AUTO; + ops.mode = MTD_OPS_AUTO_OOB; ops.datbuf = NULL; ops.len = 0; ops.oobbuf = read_data; -- cgit v1.2.3 From beb133fc165e1289c858d8f952b982b7d0b313cd Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:41 -0700 Subject: mtd: rename MTD_MODE_* to MTD_FILE_MODE_* These modes hold their state only for the life of their file descriptor, and they overlap functionality with the MTD_OPS_* modes. Particularly, MTD_MODE_RAW and MTD_OPS_RAW cover the same function: to provide raw (i.e., without ECC) access to the flash. In fact, although it may not be clear, MTD_MODE_RAW implied that operations should enable the MTD_OPS_RAW mode. Thus, we should be specific on what each mode means. This is a start, where MTD_FILE_MODE_* actually represents a "file mode," not necessarily a true global MTD mode. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 36 ++++++++++++++++++------------------ 1 file changed, 18 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 9b76438a3c27..4004f2b2f403 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -211,13 +211,13 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t len = min_t(size_t, count, size); switch (mfi->mode) { - case MTD_MODE_OTP_FACTORY: + case MTD_FILE_MODE_OTP_FACTORY: ret = mtd->read_fact_prot_reg(mtd, *ppos, len, &retlen, kbuf); break; - case MTD_MODE_OTP_USER: + case MTD_FILE_MODE_OTP_USER: ret = mtd->read_user_prot_reg(mtd, *ppos, len, &retlen, kbuf); break; - case MTD_MODE_RAW: + case MTD_FILE_MODE_RAW: { struct mtd_oob_ops ops; @@ -302,10 +302,10 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count } switch (mfi->mode) { - case MTD_MODE_OTP_FACTORY: + case MTD_FILE_MODE_OTP_FACTORY: ret = -EROFS; break; - case MTD_MODE_OTP_USER: + case MTD_FILE_MODE_OTP_USER: if (!mtd->write_user_prot_reg) { ret = -EOPNOTSUPP; break; @@ -313,7 +313,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count ret = mtd->write_user_prot_reg(mtd, *ppos, len, &retlen, kbuf); break; - case MTD_MODE_RAW: + case MTD_FILE_MODE_RAW: { struct mtd_oob_ops ops; @@ -368,13 +368,13 @@ static int otp_select_filemode(struct mtd_file_info *mfi, int mode) if (!mtd->read_fact_prot_reg) ret = -EOPNOTSUPP; else - mfi->mode = MTD_MODE_OTP_FACTORY; + mfi->mode = MTD_FILE_MODE_OTP_FACTORY; break; case MTD_OTP_USER: if (!mtd->read_fact_prot_reg) ret = -EOPNOTSUPP; else - mfi->mode = MTD_MODE_OTP_USER; + mfi->mode = MTD_FILE_MODE_OTP_USER; break; default: ret = -EINVAL; @@ -413,7 +413,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, ops.ooblen = length; ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; - ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OPS_RAW : + ops.mode = (mfi->mode == MTD_FILE_MODE_RAW) ? MTD_OPS_RAW : MTD_OPS_PLACE_OOB; if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) @@ -458,7 +458,7 @@ static int mtd_do_readoob(struct file *file, struct mtd_info *mtd, ops.ooblen = length; ops.ooboffs = start & (mtd->writesize - 1); ops.datbuf = NULL; - ops.mode = (mfi->mode == MTD_MODE_RAW) ? MTD_OPS_RAW : + ops.mode = (mfi->mode == MTD_FILE_MODE_RAW) ? MTD_OPS_RAW : MTD_OPS_PLACE_OOB; if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) @@ -849,7 +849,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) if (copy_from_user(&mode, argp, sizeof(int))) return -EFAULT; - mfi->mode = MTD_MODE_NORMAL; + mfi->mode = MTD_FILE_MODE_NORMAL; ret = otp_select_filemode(mfi, mode); @@ -865,11 +865,11 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) return -ENOMEM; ret = -EOPNOTSUPP; switch (mfi->mode) { - case MTD_MODE_OTP_FACTORY: + case MTD_FILE_MODE_OTP_FACTORY: if (mtd->get_fact_prot_info) ret = mtd->get_fact_prot_info(mtd, buf, 4096); break; - case MTD_MODE_OTP_USER: + case MTD_FILE_MODE_OTP_USER: if (mtd->get_user_prot_info) ret = mtd->get_user_prot_info(mtd, buf, 4096); break; @@ -893,7 +893,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) { struct otp_info oinfo; - if (mfi->mode != MTD_MODE_OTP_USER) + if (mfi->mode != MTD_FILE_MODE_OTP_USER) return -EINVAL; if (copy_from_user(&oinfo, argp, sizeof(oinfo))) return -EFAULT; @@ -937,17 +937,17 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) mfi->mode = 0; switch(arg) { - case MTD_MODE_OTP_FACTORY: - case MTD_MODE_OTP_USER: + case MTD_FILE_MODE_OTP_FACTORY: + case MTD_FILE_MODE_OTP_USER: ret = otp_select_filemode(mfi, arg); break; - case MTD_MODE_RAW: + case MTD_FILE_MODE_RAW: if (!mtd->read_oob || !mtd->write_oob) return -EOPNOTSUPP; mfi->mode = arg; - case MTD_MODE_NORMAL: + case MTD_FILE_MODE_NORMAL: break; default: ret = -EINVAL; -- cgit v1.2.3 From e99d8b089a6c6fd72f022168e3bf8f22d4e5e137 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 9 Sep 2011 09:59:03 -0700 Subject: mtd: add MEMWRITE ioctl Implement a new ioctl for writing both page data and OOB to flash at the same time. This ioctl is intended to be a generic interface that can replace other ioctls (MEMWRITEOOB and MEMWRITEOOB64) and cover the functionality of several other old ones, e.g., MEMWRITE can: * write autoplaced OOB instead of using ECCGETLAYOUT (deprecated) and working around the reserved areas * write raw (no ECC) OOB instead of using MTDFILEMODE to set the per-file-descriptor MTD_FILE_MODE_RAW * write raw (no ECC) data instead of using MTDFILEMODE (MTD_FILE_MODE_RAW) and using standard character device "write" This ioctl is especially useful for MLC NAND, which cannot be written twice (i.e., we cannot successfully write the page data and OOB in two separate operations). Instead, MEMWRITE can write both in a single operation. Note that this ioctl is not affected by the MTD file mode (i.e., MTD_FILE_MODE_RAW vs. MTD_FILE_MODE_NORMAL), since it receives its write mode as an input parameter. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 4004f2b2f403..1547e2a68279 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -566,6 +566,55 @@ static int mtd_blkpg_ioctl(struct mtd_info *mtd, } } +static int mtd_write_ioctl(struct mtd_info *mtd, + struct mtd_write_req __user *argp) +{ + struct mtd_write_req req; + struct mtd_oob_ops ops; + void __user *usr_data, *usr_oob; + int ret; + + if (copy_from_user(&req, argp, sizeof(req)) || + !access_ok(VERIFY_READ, req.usr_data, req.len) || + !access_ok(VERIFY_READ, req.usr_oob, req.ooblen)) + return -EFAULT; + if (!mtd->write_oob) + return -EOPNOTSUPP; + + ops.mode = req.mode; + ops.len = (size_t)req.len; + ops.ooblen = (size_t)req.ooblen; + ops.ooboffs = 0; + + usr_data = (void __user *)(uintptr_t)req.usr_data; + usr_oob = (void __user *)(uintptr_t)req.usr_oob; + + if (req.usr_data) { + ops.datbuf = memdup_user(usr_data, ops.len); + if (IS_ERR(ops.datbuf)) + return PTR_ERR(ops.datbuf); + } else { + ops.datbuf = NULL; + } + + if (req.usr_oob) { + ops.oobbuf = memdup_user(usr_oob, ops.ooblen); + if (IS_ERR(ops.oobbuf)) { + kfree(ops.datbuf); + return PTR_ERR(ops.oobbuf); + } + } else { + ops.oobbuf = NULL; + } + + ret = mtd->write_oob(mtd, (loff_t)req.start, &ops); + + kfree(ops.datbuf); + kfree(ops.oobbuf); + + return ret; +} + static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) { struct mtd_file_info *mfi = file->private_data; @@ -753,6 +802,13 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) break; } + case MEMWRITE: + { + ret = mtd_write_ioctl(mtd, + (struct mtd_write_req __user *)arg); + break; + } + case MEMLOCK: { struct erase_info_user einfo; -- cgit v1.2.3 From 4a89ff885ff9f64ea62669100766e10e4e257c6e Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:45 -0700 Subject: mtd: nand: kill member `ops' of `struct nand_chip' The nand_chip.ops field is a struct that is passed around globally with no particular reason. Every time it is used, it could just as easily be replaced with a local struct that is updated on each operation. So make it local. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 46 ++++++++++++++++++++++++-------------------- 1 file changed, 25 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 686b55770113..c9767b511dfe 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -406,6 +406,8 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) if (chip->bbt_options & NAND_BBT_USE_FLASH) ret = nand_update_bbt(mtd, ofs); else { + struct mtd_oob_ops ops; + nand_get_device(chip, mtd, FL_WRITING); /* @@ -414,13 +416,12 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) * procedure. We write two bytes per location, so we dont have * to mess with 16 bit access. */ + ops.len = ops.ooblen = 2; + ops.datbuf = NULL; + ops.oobbuf = buf; + ops.ooboffs = chip->badblockpos & ~0x01; do { - chip->ops.len = chip->ops.ooblen = 2; - chip->ops.datbuf = NULL; - chip->ops.oobbuf = buf; - chip->ops.ooboffs = chip->badblockpos & ~0x01; - - ret = nand_do_write_oob(mtd, ofs, &chip->ops); + ret = nand_do_write_oob(mtd, ofs, &ops); i++; ofs += mtd->writesize; @@ -1573,6 +1574,7 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, uint8_t *buf) { struct nand_chip *chip = mtd->priv; + struct mtd_oob_ops ops; int ret; /* Do not allow reads past end of device */ @@ -1583,13 +1585,13 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, nand_get_device(chip, mtd, FL_READING); - chip->ops.len = len; - chip->ops.datbuf = buf; - chip->ops.oobbuf = NULL; + ops.len = len; + ops.datbuf = buf; + ops.oobbuf = NULL; - ret = nand_do_read_ops(mtd, from, &chip->ops); + ret = nand_do_read_ops(mtd, from, &ops); - *retlen = chip->ops.retlen; + *retlen = ops.retlen; nand_release_device(mtd); @@ -2278,6 +2280,7 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf) { struct nand_chip *chip = mtd->priv; + struct mtd_oob_ops ops; int ret; /* Do not allow reads past end of device */ @@ -2292,13 +2295,13 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, /* Grab the device */ panic_nand_get_device(chip, mtd, FL_WRITING); - chip->ops.len = len; - chip->ops.datbuf = (uint8_t *)buf; - chip->ops.oobbuf = NULL; + ops.len = len; + ops.datbuf = (uint8_t *)buf; + ops.oobbuf = NULL; - ret = nand_do_write_ops(mtd, to, &chip->ops); + ret = nand_do_write_ops(mtd, to, &ops); - *retlen = chip->ops.retlen; + *retlen = ops.retlen; return ret; } @@ -2316,6 +2319,7 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf) { struct nand_chip *chip = mtd->priv; + struct mtd_oob_ops ops; int ret; /* Do not allow reads past end of device */ @@ -2326,13 +2330,13 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, nand_get_device(chip, mtd, FL_WRITING); - chip->ops.len = len; - chip->ops.datbuf = (uint8_t *)buf; - chip->ops.oobbuf = NULL; + ops.len = len; + ops.datbuf = (uint8_t *)buf; + ops.oobbuf = NULL; - ret = nand_do_write_ops(mtd, to, &chip->ops); + ret = nand_do_write_ops(mtd, to, &ops); - *retlen = chip->ops.retlen; + *retlen = ops.retlen; nand_release_device(mtd); -- cgit v1.2.3 From 19fb4341ad7a72e4c996234a1834e52e1f7954ba Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 30 Aug 2011 18:45:46 -0700 Subject: mtd: kill old field for `struct mtd_info_user' The ecctype and eccsize fields have been obsolete for a while. Since they don't have any users, we can kill them and leave padding in their place for now. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtdchar.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 1547e2a68279..8feb5fdcd97b 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -672,8 +672,8 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg) info.erasesize = mtd->erasesize; info.writesize = mtd->writesize; info.oobsize = mtd->oobsize; - /* The below fields are obsolete */ - info.ecctype = -1; + /* The below field is obsolete */ + info.padding = 0; if (copy_to_user(argp, &info, sizeof(struct mtd_info_user))) return -EFAULT; break; -- cgit v1.2.3 From 3e2b82b9073e8bf0b4f359fa3045e81d9fe87f7d Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 7 Sep 2011 09:50:29 +0200 Subject: mtd: drop Integrator flash map Kconfig The integrator flash has been deleted, even from the Makefile. Drop the Kconfig entry as well. Signed-off-by: Linus Walleij Acked-by: Marc Zyngier Signed-off-by: Artem Bityutskiy --- drivers/mtd/maps/Kconfig | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 1b0d56cf4c47..8e0c4bf9f7fb 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig @@ -332,10 +332,6 @@ config MTD_SOLUTIONENGINE This enables access to the flash chips on the Hitachi SolutionEngine and similar boards. Say 'Y' if you are building a kernel for such a board. -config MTD_ARM_INTEGRATOR - tristate "CFI Flash device mapped on ARM Integrator/P720T" - depends on ARM && MTD_CFI - config MTD_CDB89712 tristate "Cirrus CDB89712 evaluation board mappings" depends on MTD_CFI && ARCH_CDB89712 -- cgit v1.2.3 From 105513cc4a25522f959788371bd612f987d4d184 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:28 -0700 Subject: mtd: nand: refactor scanning code A few pieces of code are unnecessarily duplicated. For easier maintenance, we should fix this. This should have no functional effect. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 28 ++++++++-------------------- 1 file changed, 8 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index c488bcb84c90..cbf9b695c6f2 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -306,28 +306,16 @@ static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs, ops.ooboffs = 0; ops.ooblen = mtd->oobsize; - while (len > 0) { - if (len <= mtd->writesize) { - ops.oobbuf = buf + len; - ops.datbuf = buf; - ops.len = len; - res = mtd->read_oob(mtd, offs, &ops); - - /* Ignore ECC errors when checking for BBM */ - if (res != -EUCLEAN && res != -EBADMSG) - return res; - return 0; - } else { - ops.oobbuf = buf + mtd->writesize; - ops.datbuf = buf; - ops.len = mtd->writesize; - res = mtd->read_oob(mtd, offs, &ops); + ops.datbuf = buf; + ops.len = min(len, (size_t)mtd->writesize); + ops.oobbuf = buf + ops.len; - /* Ignore ECC errors when checking for BBM */ - if (res && res != -EUCLEAN && res != -EBADMSG) - return res; - } + res = mtd->read_oob(mtd, offs, &ops); + + /* Ignore ECC errors when checking for BBM */ + if (res && res != -EUCLEAN && res != -EBADMSG) + return res; buf += mtd->oobsize + mtd->writesize; len -= mtd->writesize; -- cgit v1.2.3 From afa17de262633603dd65f89e9370f48e56b8c557 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:29 -0700 Subject: mtd: nand: do not ignore all ECC errors There are a few reasons not to ignore ECC errors here. First, mtd->read_oob is being called in raw mode, so there should be no error correction in the first place. Second, if we change this such that there *is* error correction in this function, then we will want to pass the error message upward. In fact, the code I introduced to "ignore ECC errors" would have been better if it had just placed this test down in `scan_block_full()' in the first place. We would like to ignore ECC errors when we are simply checking for bad block markers (e.g., factory marked), but we may not want to ignore ECC errors when scanning OOB for a flash-based BBT pattern (in `scan_read_raw()'; note that the return codes from `scan_read_raw()' are not actually handled yet). Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index cbf9b695c6f2..fcfaf06beaaf 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -313,8 +313,7 @@ static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs, res = mtd->read_oob(mtd, offs, &ops); - /* Ignore ECC errors when checking for BBM */ - if (res && res != -EUCLEAN && res != -EBADMSG) + if (res) return res; buf += mtd->oobsize + mtd->writesize; @@ -400,7 +399,8 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd, int ret, j; ret = scan_read_raw_oob(mtd, buf, offs, readlen); - if (ret) + /* Ignore ECC errors when checking for BBM */ + if (ret && ret != -EUCLEAN && ret != -EBADMSG) return ret; for (j = 0; j < len; j++, buf += scanlen) { -- cgit v1.2.3 From 1196ac5a9969f180c67e9a4454384250ab034452 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:32 -0700 Subject: mtd: nand: remove unnecessary variable `writeops' is unnecessary in the function `nand_update_bbt()' Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index fcfaf06beaaf..c1074ac9bdac 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -1171,7 +1171,7 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd) int nand_update_bbt(struct mtd_info *mtd, loff_t offs) { struct nand_chip *this = mtd->priv; - int len, res = 0, writeops = 0; + int len, res = 0; int chip, chipsel; uint8_t *buf; struct nand_bbt_descr *td = this->bbt_td; @@ -1187,8 +1187,6 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) if (!buf) return -ENOMEM; - writeops = md != NULL ? 0x03 : 0x01; - /* Do we have a bbt per chip? */ if (td->options & NAND_BBT_PERCHIP) { chip = (int)(offs >> this->chip_shift); @@ -1203,13 +1201,13 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs) md->version[chip]++; /* Write the bad block table to the device? */ - if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { + if (td->options & NAND_BBT_WRITE) { res = write_bbt(mtd, buf, td, md, chipsel); if (res < 0) goto out; } /* Write the mirror bad block table to the device? */ - if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) { + if (md && (md->options & NAND_BBT_WRITE)) { res = write_bbt(mtd, buf, md, td, chipsel); } -- cgit v1.2.3 From 596d74527a804418d88e1178c9d72aff5649e89c Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:33 -0700 Subject: mtd: nand: fix style Remove some extra spaces Consistently use '0x' prefix for bitfield-like constants Spelling: "aplies" -> "applies" Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index c1074ac9bdac..e962167c9b71 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -183,16 +183,16 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, size_t retlen, len, totlen; loff_t from; int bits = td->options & NAND_BBT_NRBITS_MSK; - uint8_t msk = (uint8_t) ((1 << bits) - 1); + uint8_t msk = (uint8_t)((1 << bits) - 1); u32 marker_len; int reserved_block_code = td->reserved_block_code; totlen = (num * bits) >> 3; marker_len = add_marker_len(td); - from = ((loff_t) page) << this->page_shift; + from = ((loff_t)page) << this->page_shift; while (totlen) { - len = min(totlen, (size_t) (1 << this->bbt_erase_shift)); + len = min(totlen, (size_t)(1 << this->bbt_erase_shift)); if (marker_len) { /* * In case the BBT marker is not in the OOB area it @@ -250,7 +250,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, * @mtd: MTD device structure * @buf: temporary buffer * @td: descriptor for the bad block table - * @chip: read the table for a specific chip, -1 read all chips; aplies only if + * @chip: read the table for a specific chip, -1 read all chips; applies only if * NAND_BBT_PERCHIP option is set * * Read the bad block table for all chips starting at a given page. We assume @@ -743,12 +743,12 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, bbtoffs = chip * (numblocks >> 2); - to = ((loff_t) page) << this->page_shift; + to = ((loff_t)page) << this->page_shift; /* Must we save the block contents? */ if (td->options & NAND_BBT_SAVECONTENT) { /* Make it block aligned */ - to &= ~((loff_t) ((1 << this->bbt_erase_shift) - 1)); + to &= ~((loff_t)((1 << this->bbt_erase_shift) - 1)); len = 1 << this->bbt_erase_shift; res = mtd->read(mtd, to, len, &retlen, buf); if (res < 0) { @@ -771,7 +771,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, pageoffs = page - (int)(to >> this->page_shift); offs = pageoffs << this->page_shift; /* Preset the bbt area with 0xff */ - memset(&buf[offs], 0xff, (size_t) (numblocks >> sft)); + memset(&buf[offs], 0xff, (size_t)(numblocks >> sft)); ooboffs = len + (pageoffs * mtd->oobsize); } else if (td->options & NAND_BBT_NO_OOB) { @@ -781,7 +781,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, if (td->options & NAND_BBT_VERSION) offs++; /* Calc length */ - len = (size_t) (numblocks >> sft); + len = (size_t)(numblocks >> sft); len += offs; /* Make it page aligned! */ len = ALIGN(len, mtd->writesize); @@ -791,7 +791,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf, memcpy(buf, td->pattern, td->len); } else { /* Calc length */ - len = (size_t) (numblocks >> sft); + len = (size_t)(numblocks >> sft); /* Make it page aligned! */ len = ALIGN(len, mtd->writesize); /* Preset the buffer with 0xff */ @@ -903,14 +903,14 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc if (td->pages[i] == -1) { rd = md; td->version[i] = md->version[i]; - writeops = 1; + writeops = 0x01; goto writecheck; } if (md->pages[i] == -1) { rd = td; md->version[i] = td->version[i]; - writeops = 2; + writeops = 0x02; goto writecheck; } @@ -921,14 +921,14 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc goto writecheck; } - if (((int8_t) (td->version[i] - md->version[i])) > 0) { + if (((int8_t)(td->version[i] - md->version[i])) > 0) { rd = td; md->version[i] = td->version[i]; - writeops = 2; + writeops = 0x02; } else { rd = md; td->version[i] = md->version[i]; - writeops = 1; + writeops = 0x01; } goto writecheck; -- cgit v1.2.3 From c5e8ef9c21a492f1e0436b350bbc3e916f93e506 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:34 -0700 Subject: mtd: nand: begin restructuring check_create We will begin restructuring the code for check_create so that we can make some important changes. For now, we should just begin to get rid of some goto statements to make things cleaner. This is the first step of a few, which are separated to make them easier to follow. This step should just be a code refactor. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 24 +++++------------------- 1 file changed, 5 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index e962167c9b71..42b523a84fc6 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -898,30 +898,19 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc if (td->pages[i] == -1 && md->pages[i] == -1) { writeops = 0x03; goto create; - } - - if (td->pages[i] == -1) { + } else if (td->pages[i] == -1) { rd = md; td->version[i] = md->version[i]; writeops = 0x01; - goto writecheck; - } - - if (md->pages[i] == -1) { + } else if (md->pages[i] == -1) { rd = td; md->version[i] = td->version[i]; writeops = 0x02; - goto writecheck; - } - - if (td->version[i] == md->version[i]) { + } else if (td->version[i] == md->version[i]) { rd = td; if (!(td->options & NAND_BBT_VERSION)) rd2 = md; - goto writecheck; - } - - if (((int8_t)(td->version[i] - md->version[i])) > 0) { + } else if (((int8_t)(td->version[i] - md->version[i])) > 0) { rd = td; md->version[i] = td->version[i]; writeops = 0x02; @@ -930,17 +919,14 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc td->version[i] = md->version[i]; writeops = 0x01; } - - goto writecheck; - } else { if (td->pages[i] == -1) { writeops = 0x01; goto create; } rd = td; - goto writecheck; } + goto writecheck; create: /* Create the bad block table by scanning the device? */ if (!(td->options & NAND_BBT_CREATE)) -- cgit v1.2.3 From b61bf5bbf619fc66ca866a27038da0b91cafb92d Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:35 -0700 Subject: mtd: nand: remove gotos in `check_create()' This is a second step in restructuring `check_create()'. When we don't rely on goto statements for our main functionality, the code will become a little easier to manipulate. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 35 +++++++++++++++++++---------------- 1 file changed, 19 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 42b523a84fc6..7dbfce4a1a5b 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -875,7 +875,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b */ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd) { - int i, chips, writeops, chipsel, res; + int i, chips, writeops, create, chipsel, res; struct nand_chip *this = mtd->priv; struct nand_bbt_descr *td = this->bbt_td; struct nand_bbt_descr *md = this->bbt_md; @@ -889,6 +889,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc for (i = 0; i < chips; i++) { writeops = 0; + create = 0; rd = NULL; rd2 = NULL; /* Per chip or per device? */ @@ -896,8 +897,8 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc /* Mirrored table available? */ if (md) { if (td->pages[i] == -1 && md->pages[i] == -1) { + create = 1; writeops = 0x03; - goto create; } else if (td->pages[i] == -1) { rd = md; td->version[i] = md->version[i]; @@ -921,25 +922,27 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc } } else { if (td->pages[i] == -1) { + create = 1; writeops = 0x01; - goto create; + } else { + rd = td; } - rd = td; } - goto writecheck; - create: - /* Create the bad block table by scanning the device? */ - if (!(td->options & NAND_BBT_CREATE)) - continue; - /* Create the table in memory by scanning the chip(s) */ - if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY)) - create_bbt(mtd, buf, bd, chipsel); + if (create) { + /* Create the bad block table by scanning the device? */ + if (!(td->options & NAND_BBT_CREATE)) + continue; + + /* Create the table in memory by scanning the chip(s) */ + if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY)) + create_bbt(mtd, buf, bd, chipsel); + + td->version[i] = 1; + if (md) + md->version[i] = 1; + } - td->version[i] = 1; - if (md) - md->version[i] = 1; - writecheck: /* Read back first? */ if (rd) read_abs_bbt(mtd, buf, rd, chipsel); -- cgit v1.2.3 From 166e1f901b01872e8b70733a3f2e2c6980389cf8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 12 Sep 2011 12:08:27 +0200 Subject: block: export __make_request Avoid the hacks need for request based device mappers currently by simply exporting the symbol instead of trying to get it through the back door. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- drivers/md/dm.c | 13 +------------ 1 file changed, 1 insertion(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 52b39f335bb3..d8d7b8d9dd28 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -180,9 +180,6 @@ struct mapped_device { /* forced geometry settings */ struct hd_geometry geometry; - /* For saving the address of __make_request for request based dm */ - make_request_fn *saved_make_request_fn; - /* sysfs handle */ struct kobject kobj; @@ -1420,13 +1417,6 @@ static int _dm_request(struct request_queue *q, struct bio *bio) return 0; } -static int dm_make_request(struct request_queue *q, struct bio *bio) -{ - struct mapped_device *md = q->queuedata; - - return md->saved_make_request_fn(q, bio); /* call __make_request() */ -} - static int dm_request_based(struct mapped_device *md) { return blk_queue_stackable(md->queue); @@ -1437,7 +1427,7 @@ static int dm_request(struct request_queue *q, struct bio *bio) struct mapped_device *md = q->queuedata; if (dm_request_based(md)) - return dm_make_request(q, bio); + return __make_request(q, bio); return _dm_request(q, bio); } @@ -2172,7 +2162,6 @@ static int dm_init_request_based_queue(struct mapped_device *md) return 0; md->queue = q; - md->saved_make_request_fn = md->queue->make_request_fn; dm_init_md_queue(md); blk_queue_softirq_done(md->queue, dm_softirq_done); blk_queue_prep_rq(md->queue, dm_prep_fn); -- cgit v1.2.3 From c20e8de27fef9f59869c81c288ad6cf28200e00c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 12 Sep 2011 12:03:37 +0200 Subject: block: rename __make_request() to blk_queue_bio() Now that it's exported, lets put it in a more sane namespace. Signed-off-by: Jens Axboe --- drivers/md/dm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index d8d7b8d9dd28..78b20868bcbc 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1427,7 +1427,7 @@ static int dm_request(struct request_queue *q, struct bio *bio) struct mapped_device *md = q->queuedata; if (dm_request_based(md)) - return __make_request(q, bio); + return blk_queue_bio(q, bio); return _dm_request(q, bio); } -- cgit v1.2.3 From 5a7bbad27a410350e64a2d7f5ec18fc73836c14f Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 12 Sep 2011 12:12:01 +0200 Subject: block: remove support for bio remapping from ->make_request There is very little benefit in allowing to let a ->make_request instance update the bios device and sector and loop around it in __generic_make_request when we can archive the same through calling generic_make_request from the driver and letting the loop in generic_make_request handle it. Note that various drivers got the return value from ->make_request and returned non-zero values for errors. Signed-off-by: Christoph Hellwig Acked-by: NeilBrown Signed-off-by: Jens Axboe --- drivers/block/aoe/aoeblk.c | 14 ++++++-------- drivers/block/brd.c | 4 +--- drivers/block/drbd/drbd_int.h | 2 +- drivers/block/drbd/drbd_req.c | 8 ++++---- drivers/block/loop.c | 5 ++--- drivers/block/pktcdvd.c | 11 +++++------ drivers/block/ps3vram.c | 6 ++---- drivers/block/umem.c | 4 ++-- drivers/md/dm.c | 14 +++++++------- drivers/md/faulty.c | 14 +++++++------- drivers/md/linear.c | 17 +++++++---------- drivers/md/md.c | 12 ++++-------- drivers/md/md.h | 2 +- drivers/md/multipath.c | 8 ++++---- drivers/md/raid0.c | 22 +++++++++------------- drivers/md/raid1.c | 8 +++----- drivers/md/raid10.c | 19 ++++++++----------- drivers/md/raid5.c | 8 +++----- drivers/s390/block/dcssblk.c | 7 +++---- drivers/s390/block/xpram.c | 5 ++--- drivers/staging/zram/zram_drv.c | 8 +++----- 21 files changed, 84 insertions(+), 114 deletions(-) (limited to 'drivers') diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 528f6318ded1..167ba0af47f5 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -159,7 +159,7 @@ aoeblk_release(struct gendisk *disk, fmode_t mode) return 0; } -static int +static void aoeblk_make_request(struct request_queue *q, struct bio *bio) { struct sk_buff_head queue; @@ -172,25 +172,25 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) if (bio == NULL) { printk(KERN_ERR "aoe: bio is NULL\n"); BUG(); - return 0; + return; } d = bio->bi_bdev->bd_disk->private_data; if (d == NULL) { printk(KERN_ERR "aoe: bd_disk->private_data is NULL\n"); BUG(); bio_endio(bio, -ENXIO); - return 0; + return; } else if (bio->bi_io_vec == NULL) { printk(KERN_ERR "aoe: bi_io_vec is NULL\n"); BUG(); bio_endio(bio, -ENXIO); - return 0; + return; } buf = mempool_alloc(d->bufpool, GFP_NOIO); if (buf == NULL) { printk(KERN_INFO "aoe: buf allocation failure\n"); bio_endio(bio, -ENOMEM); - return 0; + return; } memset(buf, 0, sizeof(*buf)); INIT_LIST_HEAD(&buf->bufs); @@ -211,7 +211,7 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) spin_unlock_irqrestore(&d->lock, flags); mempool_free(buf, d->bufpool); bio_endio(bio, -ENXIO); - return 0; + return; } list_add_tail(&buf->bufs, &d->bufq); @@ -222,8 +222,6 @@ aoeblk_make_request(struct request_queue *q, struct bio *bio) spin_unlock_irqrestore(&d->lock, flags); aoenet_xmit(&queue); - - return 0; } static int diff --git a/drivers/block/brd.c b/drivers/block/brd.c index dba1c32e1ddf..d22119d49e53 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -323,7 +323,7 @@ out: return err; } -static int brd_make_request(struct request_queue *q, struct bio *bio) +static void brd_make_request(struct request_queue *q, struct bio *bio) { struct block_device *bdev = bio->bi_bdev; struct brd_device *brd = bdev->bd_disk->private_data; @@ -359,8 +359,6 @@ static int brd_make_request(struct request_queue *q, struct bio *bio) out: bio_endio(bio, err); - - return 0; } #ifdef CONFIG_BLK_DEV_XIP diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index ef2ceed3be4b..36eee3969a98 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1507,7 +1507,7 @@ extern void drbd_free_mdev(struct drbd_conf *mdev); extern int proc_details; /* drbd_req */ -extern int drbd_make_request(struct request_queue *q, struct bio *bio); +extern void drbd_make_request(struct request_queue *q, struct bio *bio); extern int drbd_read_remote(struct drbd_conf *mdev, struct drbd_request *req); extern int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct bio_vec *bvec); extern int is_valid_ar_handle(struct drbd_request *, sector_t); diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 3424d675b769..4a0f314086e5 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -1073,7 +1073,7 @@ static int drbd_fail_request_early(struct drbd_conf *mdev, int is_write) return 0; } -int drbd_make_request(struct request_queue *q, struct bio *bio) +void drbd_make_request(struct request_queue *q, struct bio *bio) { unsigned int s_enr, e_enr; struct drbd_conf *mdev = (struct drbd_conf *) q->queuedata; @@ -1081,7 +1081,7 @@ int drbd_make_request(struct request_queue *q, struct bio *bio) if (drbd_fail_request_early(mdev, bio_data_dir(bio) & WRITE)) { bio_endio(bio, -EPERM); - return 0; + return; } start_time = jiffies; @@ -1100,7 +1100,8 @@ int drbd_make_request(struct request_queue *q, struct bio *bio) if (likely(s_enr == e_enr)) { inc_ap_bio(mdev, 1); - return drbd_make_request_common(mdev, bio, start_time); + drbd_make_request_common(mdev, bio, start_time); + return; } /* can this bio be split generically? @@ -1148,7 +1149,6 @@ int drbd_make_request(struct request_queue *q, struct bio *bio) bio_pair_release(bp); } - return 0; } /* This is called by bio_add_page(). With this function we reduce diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 76c8da78212b..8360239d553c 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -514,7 +514,7 @@ static struct bio *loop_get_bio(struct loop_device *lo) return bio_list_pop(&lo->lo_bio_list); } -static int loop_make_request(struct request_queue *q, struct bio *old_bio) +static void loop_make_request(struct request_queue *q, struct bio *old_bio) { struct loop_device *lo = q->queuedata; int rw = bio_rw(old_bio); @@ -532,12 +532,11 @@ static int loop_make_request(struct request_queue *q, struct bio *old_bio) loop_add_bio(lo, old_bio); wake_up(&lo->lo_event); spin_unlock_irq(&lo->lo_lock); - return 0; + return; out: spin_unlock_irq(&lo->lo_lock); bio_io_error(old_bio); - return 0; } struct switch_request { diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index e133f094ab08..a63b0a2b7805 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2444,7 +2444,7 @@ static void pkt_end_io_read_cloned(struct bio *bio, int err) pkt_bio_finished(pd); } -static int pkt_make_request(struct request_queue *q, struct bio *bio) +static void pkt_make_request(struct request_queue *q, struct bio *bio) { struct pktcdvd_device *pd; char b[BDEVNAME_SIZE]; @@ -2473,7 +2473,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) cloned_bio->bi_end_io = pkt_end_io_read_cloned; pd->stats.secs_r += bio->bi_size >> 9; pkt_queue_bio(pd, cloned_bio); - return 0; + return; } if (!test_bit(PACKET_WRITABLE, &pd->flags)) { @@ -2509,7 +2509,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) pkt_make_request(q, &bp->bio1); pkt_make_request(q, &bp->bio2); bio_pair_release(bp); - return 0; + return; } } @@ -2533,7 +2533,7 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) } spin_unlock(&pkt->lock); spin_unlock(&pd->cdrw.active_list_lock); - return 0; + return; } else { blocked_bio = 1; } @@ -2584,10 +2584,9 @@ static int pkt_make_request(struct request_queue *q, struct bio *bio) */ wake_up(&pd->wqueue); } - return 0; + return; end_io: bio_io_error(bio); - return 0; } diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c index b3bdb8af89cf..7fad7af87eb2 100644 --- a/drivers/block/ps3vram.c +++ b/drivers/block/ps3vram.c @@ -596,7 +596,7 @@ out: return next; } -static int ps3vram_make_request(struct request_queue *q, struct bio *bio) +static void ps3vram_make_request(struct request_queue *q, struct bio *bio) { struct ps3_system_bus_device *dev = q->queuedata; struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev); @@ -610,13 +610,11 @@ static int ps3vram_make_request(struct request_queue *q, struct bio *bio) spin_unlock_irq(&priv->lock); if (busy) - return 0; + return; do { bio = ps3vram_do_bio(dev, bio); } while (bio); - - return 0; } static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) diff --git a/drivers/block/umem.c b/drivers/block/umem.c index 031ca720d926..aa2712060bfb 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -513,7 +513,7 @@ static void process_page(unsigned long data) } } -static int mm_make_request(struct request_queue *q, struct bio *bio) +static void mm_make_request(struct request_queue *q, struct bio *bio) { struct cardinfo *card = q->queuedata; pr_debug("mm_make_request %llu %u\n", @@ -525,7 +525,7 @@ static int mm_make_request(struct request_queue *q, struct bio *bio) card->biotail = &bio->bi_next; spin_unlock_irq(&card->lock); - return 0; + return; } static irqreturn_t mm_interrupt(int irq, void *__card) diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 78b20868bcbc..7b986e77b75e 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1388,7 +1388,7 @@ out: * The request function that just remaps the bio built up by * dm_merge_bvec. */ -static int _dm_request(struct request_queue *q, struct bio *bio) +static void _dm_request(struct request_queue *q, struct bio *bio) { int rw = bio_data_dir(bio); struct mapped_device *md = q->queuedata; @@ -1409,12 +1409,12 @@ static int _dm_request(struct request_queue *q, struct bio *bio) queue_io(md, bio); else bio_io_error(bio); - return 0; + return; } __split_and_process_bio(md, bio); up_read(&md->io_lock); - return 0; + return; } static int dm_request_based(struct mapped_device *md) @@ -1422,14 +1422,14 @@ static int dm_request_based(struct mapped_device *md) return blk_queue_stackable(md->queue); } -static int dm_request(struct request_queue *q, struct bio *bio) +static void dm_request(struct request_queue *q, struct bio *bio) { struct mapped_device *md = q->queuedata; if (dm_request_based(md)) - return blk_queue_bio(q, bio); - - return _dm_request(q, bio); + blk_queue_bio(q, bio); + else + _dm_request(q, bio); } void dm_dispatch_request(struct request *rq) diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index 23078dabb6df..5ef304d4341c 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -169,7 +169,7 @@ static void add_sector(conf_t *conf, sector_t start, int mode) conf->nfaults = n+1; } -static int make_request(mddev_t *mddev, struct bio *bio) +static void make_request(mddev_t *mddev, struct bio *bio) { conf_t *conf = mddev->private; int failit = 0; @@ -181,7 +181,7 @@ static int make_request(mddev_t *mddev, struct bio *bio) * just fail immediately */ bio_endio(bio, -EIO); - return 0; + return; } if (check_sector(conf, bio->bi_sector, bio->bi_sector+(bio->bi_size>>9), @@ -211,15 +211,15 @@ static int make_request(mddev_t *mddev, struct bio *bio) } if (failit) { struct bio *b = bio_clone_mddev(bio, GFP_NOIO, mddev); + b->bi_bdev = conf->rdev->bdev; b->bi_private = bio; b->bi_end_io = faulty_fail; - generic_make_request(b); - return 0; - } else { + bio = b; + } else bio->bi_bdev = conf->rdev->bdev; - return 1; - } + + generic_make_request(bio); } static void status(struct seq_file *seq, mddev_t *mddev) diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 6cd2c313e800..c6ee491d98e7 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -264,14 +264,14 @@ static int linear_stop (mddev_t *mddev) return 0; } -static int linear_make_request (mddev_t *mddev, struct bio *bio) +static void linear_make_request (mddev_t *mddev, struct bio *bio) { dev_info_t *tmp_dev; sector_t start_sector; if (unlikely(bio->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bio); - return 0; + return; } rcu_read_lock(); @@ -293,7 +293,7 @@ static int linear_make_request (mddev_t *mddev, struct bio *bio) (unsigned long long)start_sector); rcu_read_unlock(); bio_io_error(bio); - return 0; + return; } if (unlikely(bio->bi_sector + (bio->bi_size >> 9) > tmp_dev->end_sector)) { @@ -307,20 +307,17 @@ static int linear_make_request (mddev_t *mddev, struct bio *bio) bp = bio_split(bio, end_sector - bio->bi_sector); - if (linear_make_request(mddev, &bp->bio1)) - generic_make_request(&bp->bio1); - if (linear_make_request(mddev, &bp->bio2)) - generic_make_request(&bp->bio2); + linear_make_request(mddev, &bp->bio1); + linear_make_request(mddev, &bp->bio2); bio_pair_release(bp); - return 0; + return; } bio->bi_bdev = tmp_dev->rdev->bdev; bio->bi_sector = bio->bi_sector - start_sector + tmp_dev->rdev->data_offset; rcu_read_unlock(); - - return 1; + generic_make_request(bio); } static void linear_status (struct seq_file *seq, mddev_t *mddev) diff --git a/drivers/md/md.c b/drivers/md/md.c index 8e221a20f5d9..5c2178562c96 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -330,18 +330,17 @@ static DEFINE_SPINLOCK(all_mddevs_lock); * call has finished, the bio has been linked into some internal structure * and so is visible to ->quiesce(), so we don't need the refcount any more. */ -static int md_make_request(struct request_queue *q, struct bio *bio) +static void md_make_request(struct request_queue *q, struct bio *bio) { const int rw = bio_data_dir(bio); mddev_t *mddev = q->queuedata; - int rv; int cpu; unsigned int sectors; if (mddev == NULL || mddev->pers == NULL || !mddev->ready) { bio_io_error(bio); - return 0; + return; } smp_rmb(); /* Ensure implications of 'active' are visible */ rcu_read_lock(); @@ -366,7 +365,7 @@ static int md_make_request(struct request_queue *q, struct bio *bio) * go away inside make_request */ sectors = bio_sectors(bio); - rv = mddev->pers->make_request(mddev, bio); + mddev->pers->make_request(mddev, bio); cpu = part_stat_lock(); part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]); @@ -375,8 +374,6 @@ static int md_make_request(struct request_queue *q, struct bio *bio) if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended) wake_up(&mddev->sb_wait); - - return rv; } /* mddev_suspend makes sure no new requests are submitted @@ -475,8 +472,7 @@ static void md_submit_flush_data(struct work_struct *ws) bio_endio(bio, 0); else { bio->bi_rw &= ~REQ_FLUSH; - if (mddev->pers->make_request(mddev, bio)) - generic_make_request(bio); + mddev->pers->make_request(mddev, bio); } mddev->flush_bio = NULL; diff --git a/drivers/md/md.h b/drivers/md/md.h index 1e586bb4452e..bd47847cf7ca 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -424,7 +424,7 @@ struct mdk_personality int level; struct list_head list; struct module *owner; - int (*make_request)(mddev_t *mddev, struct bio *bio); + void (*make_request)(mddev_t *mddev, struct bio *bio); int (*run)(mddev_t *mddev); int (*stop)(mddev_t *mddev); void (*status)(struct seq_file *seq, mddev_t *mddev); diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 3535c23af288..407cb5691425 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -106,7 +106,7 @@ static void multipath_end_request(struct bio *bio, int error) rdev_dec_pending(rdev, conf->mddev); } -static int multipath_make_request(mddev_t *mddev, struct bio * bio) +static void multipath_make_request(mddev_t *mddev, struct bio * bio) { multipath_conf_t *conf = mddev->private; struct multipath_bh * mp_bh; @@ -114,7 +114,7 @@ static int multipath_make_request(mddev_t *mddev, struct bio * bio) if (unlikely(bio->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bio); - return 0; + return; } mp_bh = mempool_alloc(conf->pool, GFP_NOIO); @@ -126,7 +126,7 @@ static int multipath_make_request(mddev_t *mddev, struct bio * bio) if (mp_bh->path < 0) { bio_endio(bio, -EIO); mempool_free(mp_bh, conf->pool); - return 0; + return; } multipath = conf->multipaths + mp_bh->path; @@ -137,7 +137,7 @@ static int multipath_make_request(mddev_t *mddev, struct bio * bio) mp_bh->bio.bi_end_io = multipath_end_request; mp_bh->bio.bi_private = mp_bh; generic_make_request(&mp_bh->bio); - return 0; + return; } static void multipath_status (struct seq_file *seq, mddev_t *mddev) diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index e86bf3682e1e..4066615d61af 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -466,7 +466,7 @@ static inline int is_io_in_chunk_boundary(mddev_t *mddev, } } -static int raid0_make_request(mddev_t *mddev, struct bio *bio) +static void raid0_make_request(mddev_t *mddev, struct bio *bio) { unsigned int chunk_sects; sector_t sector_offset; @@ -475,7 +475,7 @@ static int raid0_make_request(mddev_t *mddev, struct bio *bio) if (unlikely(bio->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bio); - return 0; + return; } chunk_sects = mddev->chunk_sectors; @@ -495,13 +495,10 @@ static int raid0_make_request(mddev_t *mddev, struct bio *bio) else bp = bio_split(bio, chunk_sects - sector_div(sector, chunk_sects)); - if (raid0_make_request(mddev, &bp->bio1)) - generic_make_request(&bp->bio1); - if (raid0_make_request(mddev, &bp->bio2)) - generic_make_request(&bp->bio2); - + raid0_make_request(mddev, &bp->bio1); + raid0_make_request(mddev, &bp->bio2); bio_pair_release(bp); - return 0; + return; } sector_offset = bio->bi_sector; @@ -511,10 +508,9 @@ static int raid0_make_request(mddev_t *mddev, struct bio *bio) bio->bi_bdev = tmp_dev->bdev; bio->bi_sector = sector_offset + zone->dev_start + tmp_dev->data_offset; - /* - * Let the main block layer submit the IO and resolve recursion: - */ - return 1; + + generic_make_request(bio); + return; bad_map: printk("md/raid0:%s: make_request bug: can't convert block across chunks" @@ -523,7 +519,7 @@ bad_map: (unsigned long long)bio->bi_sector, bio->bi_size >> 10); bio_io_error(bio); - return 0; + return; } static void raid0_status(struct seq_file *seq, mddev_t *mddev) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 32323f0afd89..97f2a5f977b1 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -785,7 +785,7 @@ do_sync_io: PRINTK("%dB behind alloc failed, doing sync I/O\n", bio->bi_size); } -static int make_request(mddev_t *mddev, struct bio * bio) +static void make_request(mddev_t *mddev, struct bio * bio) { conf_t *conf = mddev->private; mirror_info_t *mirror; @@ -870,7 +870,7 @@ read_again: if (rdisk < 0) { /* couldn't find anywhere to read from */ raid_end_bio_io(r1_bio); - return 0; + return; } mirror = conf->mirrors + rdisk; @@ -928,7 +928,7 @@ read_again: goto read_again; } else generic_make_request(read_bio); - return 0; + return; } /* @@ -1119,8 +1119,6 @@ read_again: if (do_sync || !bitmap || !plugged) md_wakeup_thread(mddev->thread); - - return 0; } static void status(struct seq_file *seq, mddev_t *mddev) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 8b29cd4f01c8..04b625e1cb60 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -825,7 +825,7 @@ static void unfreeze_array(conf_t *conf) spin_unlock_irq(&conf->resync_lock); } -static int make_request(mddev_t *mddev, struct bio * bio) +static void make_request(mddev_t *mddev, struct bio * bio) { conf_t *conf = mddev->private; mirror_info_t *mirror; @@ -844,7 +844,7 @@ static int make_request(mddev_t *mddev, struct bio * bio) if (unlikely(bio->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bio); - return 0; + return; } /* If this request crosses a chunk boundary, we need to @@ -876,10 +876,8 @@ static int make_request(mddev_t *mddev, struct bio * bio) conf->nr_waiting++; spin_unlock_irq(&conf->resync_lock); - if (make_request(mddev, &bp->bio1)) - generic_make_request(&bp->bio1); - if (make_request(mddev, &bp->bio2)) - generic_make_request(&bp->bio2); + make_request(mddev, &bp->bio1); + make_request(mddev, &bp->bio2); spin_lock_irq(&conf->resync_lock); conf->nr_waiting--; @@ -887,14 +885,14 @@ static int make_request(mddev_t *mddev, struct bio * bio) spin_unlock_irq(&conf->resync_lock); bio_pair_release(bp); - return 0; + return; bad_map: printk("md/raid10:%s: make_request bug: can't convert block across chunks" " or bigger than %dk %llu %d\n", mdname(mddev), chunk_sects/2, (unsigned long long)bio->bi_sector, bio->bi_size >> 10); bio_io_error(bio); - return 0; + return; } md_write_start(mddev, bio); @@ -937,7 +935,7 @@ read_again: slot = r10_bio->read_slot; if (disk < 0) { raid_end_bio_io(r10_bio); - return 0; + return; } mirror = conf->mirrors + disk; @@ -985,7 +983,7 @@ read_again: goto read_again; } else generic_make_request(read_bio); - return 0; + return; } /* @@ -1157,7 +1155,6 @@ retry_write: if (do_sync || !mddev->bitmap || !plugged) md_wakeup_thread(mddev->thread); - return 0; } static void status(struct seq_file *seq, mddev_t *mddev) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index dbae459fb02d..96b7f6a1b6f2 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3695,7 +3695,7 @@ static struct stripe_head *__get_priority_stripe(raid5_conf_t *conf) return sh; } -static int make_request(mddev_t *mddev, struct bio * bi) +static void make_request(mddev_t *mddev, struct bio * bi) { raid5_conf_t *conf = mddev->private; int dd_idx; @@ -3708,7 +3708,7 @@ static int make_request(mddev_t *mddev, struct bio * bi) if (unlikely(bi->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bi); - return 0; + return; } md_write_start(mddev, bi); @@ -3716,7 +3716,7 @@ static int make_request(mddev_t *mddev, struct bio * bi) if (rw == READ && mddev->reshape_position == MaxSector && chunk_aligned_read(mddev,bi)) - return 0; + return; logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1); last_sector = bi->bi_sector + (bi->bi_size>>9); @@ -3851,8 +3851,6 @@ static int make_request(mddev_t *mddev, struct bio * bi) bio_endio(bi, 0); } - - return 0; } static sector_t raid5_size(mddev_t *mddev, sector_t sectors, int raid_disks); diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 9b43ae94beba..a5a55da2a1ac 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -27,7 +27,7 @@ static int dcssblk_open(struct block_device *bdev, fmode_t mode); static int dcssblk_release(struct gendisk *disk, fmode_t mode); -static int dcssblk_make_request(struct request_queue *q, struct bio *bio); +static void dcssblk_make_request(struct request_queue *q, struct bio *bio); static int dcssblk_direct_access(struct block_device *bdev, sector_t secnum, void **kaddr, unsigned long *pfn); @@ -814,7 +814,7 @@ out: return rc; } -static int +static void dcssblk_make_request(struct request_queue *q, struct bio *bio) { struct dcssblk_dev_info *dev_info; @@ -871,10 +871,9 @@ dcssblk_make_request(struct request_queue *q, struct bio *bio) bytes_done += bvec->bv_len; } bio_endio(bio, 0); - return 0; + return; fail: bio_io_error(bio); - return 0; } static int diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index 1f6a4d894e73..98f3e4ade924 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -181,7 +181,7 @@ static unsigned long xpram_highest_page_index(void) /* * Block device make request function. */ -static int xpram_make_request(struct request_queue *q, struct bio *bio) +static void xpram_make_request(struct request_queue *q, struct bio *bio) { xpram_device_t *xdev = bio->bi_bdev->bd_disk->private_data; struct bio_vec *bvec; @@ -221,10 +221,9 @@ static int xpram_make_request(struct request_queue *q, struct bio *bio) } set_bit(BIO_UPTODATE, &bio->bi_flags); bio_endio(bio, 0); - return 0; + return; fail: bio_io_error(bio); - return 0; } static int xpram_getgeo(struct block_device *bdev, struct hd_geometry *geo) diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index d70ec1ad10de..02589cab6710 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -556,24 +556,22 @@ static inline int valid_io_request(struct zram *zram, struct bio *bio) /* * Handler function for all zram I/O requests. */ -static int zram_make_request(struct request_queue *queue, struct bio *bio) +static void zram_make_request(struct request_queue *queue, struct bio *bio) { struct zram *zram = queue->queuedata; if (!valid_io_request(zram, bio)) { zram_stat64_inc(zram, &zram->stats.invalid_io); bio_io_error(bio); - return 0; + return; } if (unlikely(!zram->init_done) && zram_init_device(zram)) { bio_io_error(bio); - return 0; + return; } __zram_make_request(zram, bio, bio_data_dir(bio)); - - return 0; } void zram_reset_device(struct zram *zram) -- cgit v1.2.3 From a2f5203fec3c06d68a6bb45ad41f2adebf9ac5e0 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:29 +0900 Subject: DMA: PL330: Add support runtime PM for PL330 DMAC Signed-off-by: Boojin Kim Acked-by: Jassi Brar Acked-by: Linus Walleij Acked-by: Vinod Koul Cc: Dan Williams Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 73 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 00eee59e8b33..0b99af18f9a1 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -17,6 +17,7 @@ #include #include #include +#include #define NR_DEFAULT_DESC 16 @@ -83,6 +84,8 @@ struct dma_pl330_dmac { /* Peripheral channels connected to this DMAC */ struct dma_pl330_chan *peripherals; /* keep at end */ + + struct clk *clk; }; struct dma_pl330_desc { @@ -696,6 +699,30 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) goto probe_err1; } + pdmac->clk = clk_get(&adev->dev, "dma"); + if (IS_ERR(pdmac->clk)) { + dev_err(&adev->dev, "Cannot get operation clock.\n"); + ret = -EINVAL; + goto probe_err1; + } + + amba_set_drvdata(adev, pdmac); + +#ifdef CONFIG_PM_RUNTIME + /* to use the runtime PM helper functions */ + pm_runtime_enable(&adev->dev); + + /* enable the power domain */ + if (pm_runtime_get_sync(&adev->dev)) { + dev_err(&adev->dev, "failed to get runtime pm\n"); + ret = -ENODEV; + goto probe_err1; + } +#else + /* enable dma clk */ + clk_enable(pdmac->clk); +#endif + irq = adev->irq[0]; ret = request_irq(irq, pl330_irq_handler, 0, dev_name(&adev->dev), pi); @@ -771,8 +798,6 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) goto probe_err4; } - amba_set_drvdata(adev, pdmac); - dev_info(&adev->dev, "Loaded driver for PL330 DMAC-%d\n", adev->periphid); dev_info(&adev->dev, @@ -833,6 +858,13 @@ static int __devexit pl330_remove(struct amba_device *adev) res = &adev->res; release_mem_region(res->start, resource_size(res)); +#ifdef CONFIG_PM_RUNTIME + pm_runtime_put(&adev->dev); + pm_runtime_disable(&adev->dev); +#else + clk_disable(pdmac->clk); +#endif + kfree(pdmac); return 0; @@ -846,10 +878,49 @@ static struct amba_id pl330_ids[] = { { 0, 0 }, }; +#ifdef CONFIG_PM_RUNTIME +static int pl330_runtime_suspend(struct device *dev) +{ + struct dma_pl330_dmac *pdmac = dev_get_drvdata(dev); + + if (!pdmac) { + dev_err(dev, "failed to get dmac\n"); + return -ENODEV; + } + + clk_disable(pdmac->clk); + + return 0; +} + +static int pl330_runtime_resume(struct device *dev) +{ + struct dma_pl330_dmac *pdmac = dev_get_drvdata(dev); + + if (!pdmac) { + dev_err(dev, "failed to get dmac\n"); + return -ENODEV; + } + + clk_enable(pdmac->clk); + + return 0; +} +#else +#define pl330_runtime_suspend NULL +#define pl330_runtime_resume NULL +#endif /* CONFIG_PM_RUNTIME */ + +static const struct dev_pm_ops pl330_pm_ops = { + .runtime_suspend = pl330_runtime_suspend, + .runtime_resume = pl330_runtime_resume, +}; + static struct amba_driver pl330_driver = { .drv = { .owner = THIS_MODULE, .name = "dma-pl330", + .pm = &pl330_pm_ops, }, .id_table = pl330_ids, .probe = pl330_probe, -- cgit v1.2.3 From 1b9bb715e7c4c189c4215a11a09e2ccb16598d86 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:30 +0900 Subject: DMA: PL330: Update PL330 DMA API driver This patch updates following 3 items. 1. Removes unneccessary code. 2. Add AMBA, PL330 configuration 3. Change the meaning of 'peri_id' variable from PL330 event number to specific dma id by user. Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Cc: Dan Williams Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/dma/Kconfig | 3 ++- drivers/dma/pl330.c | 14 +++++++++----- 2 files changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index 2e3b3d38c465..ab8f469f5cf8 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -193,7 +193,8 @@ config ARCH_HAS_ASYNC_TX_FIND_CHANNEL config PL330_DMA tristate "DMA API Driver for PL330" select DMA_ENGINE - depends on PL330 + depends on ARM_AMBA + select PL330 help Select if your platform has one or more PL330 DMACs. You need to provide platform specific settings via diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 0b99af18f9a1..d5829c734fad 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -18,6 +18,7 @@ #include #include #include +#include #define NR_DEFAULT_DESC 16 @@ -69,6 +70,10 @@ struct dma_pl330_chan { * NULL if the channel is available to be acquired. */ void *pl330_chid; + + /* For D-to-M and M-to-D channels */ + int burst_sz; /* the peripheral fifo width */ + dma_addr_t fifo_addr; }; struct dma_pl330_dmac { @@ -456,7 +461,7 @@ static struct dma_pl330_desc *pl330_get_desc(struct dma_pl330_chan *pch) if (peri) { desc->req.rqtype = peri->rqtype; - desc->req.peri = peri->peri_id; + desc->req.peri = pch->chan.chan_id; } else { desc->req.rqtype = MEMTOMEM; desc->req.peri = 0; @@ -582,7 +587,7 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, struct dma_pl330_peri *peri = chan->private; struct scatterlist *sg; unsigned long flags; - int i, burst_size; + int i; dma_addr_t addr; if (unlikely(!pch || !sgl || !sg_len || !peri)) @@ -598,8 +603,7 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, return NULL; } - addr = peri->fifo_addr; - burst_size = peri->burst_sz; + addr = pch->fifo_addr; first = NULL; @@ -647,7 +651,7 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, sg_dma_address(sg), addr, sg_dma_len(sg)); } - desc->rqcfg.brst_size = burst_size; + desc->rqcfg.brst_size = pch->burst_sz; desc->rqcfg.brst_len = 1; } -- cgit v1.2.3 From 1d0c1d606d787e833ee3bd9e1cda640e75c4681a Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:31 +0900 Subject: DMA: PL330: Support DMA_SLAVE_CONFIG command Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Cc: Dan Williams Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 49 +++++++++++++++++++++++++++++++++++++------------ 1 file changed, 37 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index d5829c734fad..e7f9d1d3d81a 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -73,6 +73,7 @@ struct dma_pl330_chan { /* For D-to-M and M-to-D channels */ int burst_sz; /* the peripheral fifo width */ + int burst_len; /* the number of burst */ dma_addr_t fifo_addr; }; @@ -263,23 +264,47 @@ static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned struct dma_pl330_chan *pch = to_pchan(chan); struct dma_pl330_desc *desc; unsigned long flags; + struct dma_pl330_dmac *pdmac = pch->dmac; + struct dma_slave_config *slave_config; - /* Only supports DMA_TERMINATE_ALL */ - if (cmd != DMA_TERMINATE_ALL) - return -ENXIO; + switch (cmd) { + case DMA_TERMINATE_ALL: + spin_lock_irqsave(&pch->lock, flags); - spin_lock_irqsave(&pch->lock, flags); + /* FLUSH the PL330 Channel thread */ + pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); - /* FLUSH the PL330 Channel thread */ - pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); - - /* Mark all desc done */ - list_for_each_entry(desc, &pch->work_list, node) - desc->status = DONE; + /* Mark all desc done */ + list_for_each_entry(desc, &pch->work_list, node) + desc->status = DONE; - spin_unlock_irqrestore(&pch->lock, flags); + spin_unlock_irqrestore(&pch->lock, flags); - pl330_tasklet((unsigned long) pch); + pl330_tasklet((unsigned long) pch); + break; + case DMA_SLAVE_CONFIG: + slave_config = (struct dma_slave_config *)arg; + + if (slave_config->direction == DMA_TO_DEVICE) { + if (slave_config->dst_addr) + pch->fifo_addr = slave_config->dst_addr; + if (slave_config->dst_addr_width) + pch->burst_sz = __ffs(slave_config->dst_addr_width); + if (slave_config->dst_maxburst) + pch->burst_len = slave_config->dst_maxburst; + } else if (slave_config->direction == DMA_FROM_DEVICE) { + if (slave_config->src_addr) + pch->fifo_addr = slave_config->src_addr; + if (slave_config->src_addr_width) + pch->burst_sz = __ffs(slave_config->src_addr_width); + if (slave_config->src_maxburst) + pch->burst_len = slave_config->src_maxburst; + } + break; + default: + dev_err(pch->dmac->pif.dev, "Not supported command.\n"); + return -ENXIO; + } return 0; } -- cgit v1.2.3 From ae43b886f174297366d4e09a008ad8e6592d95df Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:32 +0900 Subject: DMA: PL330: Remove the start operation for handling DMA_TERMINATE_ALL command Original code carries out the start operation after flush operation. But start operation is not required for DMA_TERMINATE_ALL command. So, this patch removes the unnecessary start operation and only carries out the flush operation for handling DMA_TERMINATE_ALL command. Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Cc: Dan Williams Signed-off-by: Kukjin Kim [Fixed typos in changelog] Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index e7f9d1d3d81a..59943ec1e74a 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -262,10 +262,11 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan) static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned long arg) { struct dma_pl330_chan *pch = to_pchan(chan); - struct dma_pl330_desc *desc; + struct dma_pl330_desc *desc, *_dt; unsigned long flags; struct dma_pl330_dmac *pdmac = pch->dmac; struct dma_slave_config *slave_config; + LIST_HEAD(list); switch (cmd) { case DMA_TERMINATE_ALL: @@ -275,12 +276,14 @@ static int pl330_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned pl330_chan_ctrl(pch->pl330_chid, PL330_OP_FLUSH); /* Mark all desc done */ - list_for_each_entry(desc, &pch->work_list, node) + list_for_each_entry_safe(desc, _dt, &pch->work_list , node) { desc->status = DONE; + pch->completed = desc->txd.cookie; + list_move_tail(&desc->node, &list); + } + list_splice_tail_init(&list, &pdmac->desc_pool); spin_unlock_irqrestore(&pch->lock, flags); - - pl330_tasklet((unsigned long) pch); break; case DMA_SLAVE_CONFIG: slave_config = (struct dma_slave_config *)arg; -- cgit v1.2.3 From 42bc9cf45939c26a5c5eb946d4fd35f1a7b0f9f8 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:33 +0900 Subject: DMA: PL330: Add DMA_CYCLIC capability This patch adds DMA_CYCLIC capability that is used for audio driver. DMA driver activated with it reuses the dma requests that were submitted through tx_submit(). Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Cc: Dan Williams Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 83 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 59943ec1e74a..621134fdba4c 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -75,6 +75,9 @@ struct dma_pl330_chan { int burst_sz; /* the peripheral fifo width */ int burst_len; /* the number of burst */ dma_addr_t fifo_addr; + + /* for cyclic capability */ + bool cyclic; }; struct dma_pl330_dmac { @@ -161,6 +164,31 @@ static inline void free_desc_list(struct list_head *list) spin_unlock_irqrestore(&pdmac->pool_lock, flags); } +static inline void handle_cyclic_desc_list(struct list_head *list) +{ + struct dma_pl330_desc *desc; + struct dma_pl330_chan *pch; + unsigned long flags; + + if (list_empty(list)) + return; + + list_for_each_entry(desc, list, node) { + dma_async_tx_callback callback; + + /* Change status to reload it */ + desc->status = PREP; + pch = desc->pchan; + callback = desc->txd.callback; + if (callback) + callback(desc->txd.callback_param); + } + + spin_lock_irqsave(&pch->lock, flags); + list_splice_tail_init(list, &pch->work_list); + spin_unlock_irqrestore(&pch->lock, flags); +} + static inline void fill_queue(struct dma_pl330_chan *pch) { struct dma_pl330_desc *desc; @@ -214,7 +242,10 @@ static void pl330_tasklet(unsigned long data) spin_unlock_irqrestore(&pch->lock, flags); - free_desc_list(&list); + if (pch->cyclic) + handle_cyclic_desc_list(&list); + else + free_desc_list(&list); } static void dma_pl330_rqcb(void *token, enum pl330_op_err err) @@ -245,6 +276,7 @@ static int pl330_alloc_chan_resources(struct dma_chan *chan) spin_lock_irqsave(&pch->lock, flags); pch->completed = chan->cookie = 1; + pch->cyclic = false; pch->pl330_chid = pl330_request_channel(&pdmac->pif); if (!pch->pl330_chid) { @@ -324,6 +356,9 @@ static void pl330_free_chan_resources(struct dma_chan *chan) pl330_release_channel(pch->pl330_chid); pch->pl330_chid = NULL; + if (pch->cyclic) + list_splice_tail_init(&pch->work_list, &pch->dmac->desc_pool); + spin_unlock_irqrestore(&pch->lock, flags); } @@ -560,6 +595,51 @@ static inline int get_burst_len(struct dma_pl330_desc *desc, size_t len) return burst_len; } +static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic( + struct dma_chan *chan, dma_addr_t dma_addr, size_t len, + size_t period_len, enum dma_data_direction direction) +{ + struct dma_pl330_desc *desc; + struct dma_pl330_chan *pch = to_pchan(chan); + dma_addr_t dst; + dma_addr_t src; + + desc = pl330_get_desc(pch); + if (!desc) { + dev_err(pch->dmac->pif.dev, "%s:%d Unable to fetch desc\n", + __func__, __LINE__); + return NULL; + } + + switch (direction) { + case DMA_TO_DEVICE: + desc->rqcfg.src_inc = 1; + desc->rqcfg.dst_inc = 0; + src = dma_addr; + dst = pch->fifo_addr; + break; + case DMA_FROM_DEVICE: + desc->rqcfg.src_inc = 0; + desc->rqcfg.dst_inc = 1; + src = pch->fifo_addr; + dst = dma_addr; + break; + default: + dev_err(pch->dmac->pif.dev, "%s:%d Invalid dma direction\n", + __func__, __LINE__); + return NULL; + } + + desc->rqcfg.brst_size = pch->burst_sz; + desc->rqcfg.brst_len = 1; + + pch->cyclic = true; + + fill_px(&desc->px, dst, src, period_len); + + return &desc->txd; +} + static struct dma_async_tx_descriptor * pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst, dma_addr_t src, size_t len, unsigned long flags) @@ -791,6 +871,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) case MEMTODEV: case DEVTOMEM: dma_cap_set(DMA_SLAVE, pd->cap_mask); + dma_cap_set(DMA_CYCLIC, pd->cap_mask); break; default: dev_err(&adev->dev, "DEVTODEV Not Supported\n"); @@ -819,6 +900,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) pd->device_alloc_chan_resources = pl330_alloc_chan_resources; pd->device_free_chan_resources = pl330_free_chan_resources; pd->device_prep_dma_memcpy = pl330_prep_dma_memcpy; + pd->device_prep_dma_cyclic = pl330_prep_dma_cyclic; pd->device_tx_status = pl330_tx_status; pd->device_prep_slave_sg = pl330_prep_slave_sg; pd->device_control = pl330_control; -- cgit v1.2.3 From 39d3e8074e44c1953928a0b91bc328f552c5fc79 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:41 +0900 Subject: spi/s3c64xx: Add support DMA engine API This patch adds to support DMA generic API to transfer raw SPI data. Basiclly the spi driver uses DMA generic API if architecture supports it. Otherwise, uses Samsung specific S3C-PL330 APIs. Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Acked-by: Grant Likely Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/spi/spi-s3c64xx.c | 141 +++++++++++++++++++++++----------------------- 1 file changed, 69 insertions(+), 72 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 595dacc7645f..24f49032ec35 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -171,6 +171,9 @@ struct s3c64xx_spi_driver_data { unsigned state; unsigned cur_mode, cur_bpw; unsigned cur_speed; + unsigned rx_ch; + unsigned tx_ch; + struct samsung_dma_ops *ops; }; static struct s3c2410_dma_client s3c64xx_spi_dma_client = { @@ -226,6 +229,38 @@ static void flush_fifo(struct s3c64xx_spi_driver_data *sdd) writel(val, regs + S3C64XX_SPI_CH_CFG); } +static void s3c64xx_spi_dma_rxcb(void *data) +{ + struct s3c64xx_spi_driver_data *sdd + = (struct s3c64xx_spi_driver_data *)data; + unsigned long flags; + + spin_lock_irqsave(&sdd->lock, flags); + + sdd->state &= ~RXBUSY; + /* If the other done */ + if (!(sdd->state & TXBUSY)) + complete(&sdd->xfer_completion); + + spin_unlock_irqrestore(&sdd->lock, flags); +} + +static void s3c64xx_spi_dma_txcb(void *data) +{ + struct s3c64xx_spi_driver_data *sdd + = (struct s3c64xx_spi_driver_data *)data; + unsigned long flags; + + spin_lock_irqsave(&sdd->lock, flags); + + sdd->state &= ~TXBUSY; + /* If the other done */ + if (!(sdd->state & RXBUSY)) + complete(&sdd->xfer_completion); + + spin_unlock_irqrestore(&sdd->lock, flags); +} + static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, struct spi_device *spi, struct spi_transfer *xfer, int dma_mode) @@ -233,6 +268,7 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, struct s3c64xx_spi_info *sci = sdd->cntrlr_info; void __iomem *regs = sdd->regs; u32 modecfg, chcfg; + struct samsung_dma_prep_info info; modecfg = readl(regs + S3C64XX_SPI_MODE_CFG); modecfg &= ~(S3C64XX_SPI_MODE_TXDMA_ON | S3C64XX_SPI_MODE_RXDMA_ON); @@ -258,10 +294,14 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, chcfg |= S3C64XX_SPI_CH_TXCH_ON; if (dma_mode) { modecfg |= S3C64XX_SPI_MODE_TXDMA_ON; - s3c2410_dma_config(sdd->tx_dmach, sdd->cur_bpw / 8); - s3c2410_dma_enqueue(sdd->tx_dmach, (void *)sdd, - xfer->tx_dma, xfer->len); - s3c2410_dma_ctrl(sdd->tx_dmach, S3C2410_DMAOP_START); + info.cap = DMA_SLAVE; + info.direction = DMA_TO_DEVICE; + info.buf = xfer->tx_dma; + info.len = xfer->len; + info.fp = s3c64xx_spi_dma_txcb; + info.fp_param = sdd; + sdd->ops->prepare(sdd->tx_ch, &info); + sdd->ops->trigger(sdd->tx_ch); } else { switch (sdd->cur_bpw) { case 32: @@ -293,10 +333,14 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, writel(((xfer->len * 8 / sdd->cur_bpw) & 0xffff) | S3C64XX_SPI_PACKET_CNT_EN, regs + S3C64XX_SPI_PACKET_CNT); - s3c2410_dma_config(sdd->rx_dmach, sdd->cur_bpw / 8); - s3c2410_dma_enqueue(sdd->rx_dmach, (void *)sdd, - xfer->rx_dma, xfer->len); - s3c2410_dma_ctrl(sdd->rx_dmach, S3C2410_DMAOP_START); + info.cap = DMA_SLAVE; + info.direction = DMA_FROM_DEVICE; + info.buf = xfer->rx_dma; + info.len = xfer->len; + info.fp = s3c64xx_spi_dma_rxcb; + info.fp_param = sdd; + sdd->ops->prepare(sdd->rx_ch, &info); + sdd->ops->trigger(sdd->rx_ch); } } @@ -482,46 +526,6 @@ static void s3c64xx_spi_config(struct s3c64xx_spi_driver_data *sdd) } } -static void s3c64xx_spi_dma_rxcb(struct s3c2410_dma_chan *chan, void *buf_id, - int size, enum s3c2410_dma_buffresult res) -{ - struct s3c64xx_spi_driver_data *sdd = buf_id; - unsigned long flags; - - spin_lock_irqsave(&sdd->lock, flags); - - if (res == S3C2410_RES_OK) - sdd->state &= ~RXBUSY; - else - dev_err(&sdd->pdev->dev, "DmaAbrtRx-%d\n", size); - - /* If the other done */ - if (!(sdd->state & TXBUSY)) - complete(&sdd->xfer_completion); - - spin_unlock_irqrestore(&sdd->lock, flags); -} - -static void s3c64xx_spi_dma_txcb(struct s3c2410_dma_chan *chan, void *buf_id, - int size, enum s3c2410_dma_buffresult res) -{ - struct s3c64xx_spi_driver_data *sdd = buf_id; - unsigned long flags; - - spin_lock_irqsave(&sdd->lock, flags); - - if (res == S3C2410_RES_OK) - sdd->state &= ~TXBUSY; - else - dev_err(&sdd->pdev->dev, "DmaAbrtTx-%d \n", size); - - /* If the other done */ - if (!(sdd->state & RXBUSY)) - complete(&sdd->xfer_completion); - - spin_unlock_irqrestore(&sdd->lock, flags); -} - #define XFER_DMAADDR_INVALID DMA_BIT_MASK(32) static int s3c64xx_spi_map_mssg(struct s3c64xx_spi_driver_data *sdd, @@ -696,12 +700,10 @@ static void handle_msg(struct s3c64xx_spi_driver_data *sdd, if (use_dma) { if (xfer->tx_buf != NULL && (sdd->state & TXBUSY)) - s3c2410_dma_ctrl(sdd->tx_dmach, - S3C2410_DMAOP_FLUSH); + sdd->ops->stop(sdd->tx_ch); if (xfer->rx_buf != NULL && (sdd->state & RXBUSY)) - s3c2410_dma_ctrl(sdd->rx_dmach, - S3C2410_DMAOP_FLUSH); + sdd->ops->stop(sdd->rx_ch); } goto out; @@ -741,24 +743,19 @@ out: static int acquire_dma(struct s3c64xx_spi_driver_data *sdd) { - if (s3c2410_dma_request(sdd->rx_dmach, - &s3c64xx_spi_dma_client, NULL) < 0) { - dev_err(&sdd->pdev->dev, "cannot get RxDMA\n"); - return 0; - } - s3c2410_dma_set_buffdone_fn(sdd->rx_dmach, s3c64xx_spi_dma_rxcb); - s3c2410_dma_devconfig(sdd->rx_dmach, S3C2410_DMASRC_HW, - sdd->sfr_start + S3C64XX_SPI_RX_DATA); - - if (s3c2410_dma_request(sdd->tx_dmach, - &s3c64xx_spi_dma_client, NULL) < 0) { - dev_err(&sdd->pdev->dev, "cannot get TxDMA\n"); - s3c2410_dma_free(sdd->rx_dmach, &s3c64xx_spi_dma_client); - return 0; - } - s3c2410_dma_set_buffdone_fn(sdd->tx_dmach, s3c64xx_spi_dma_txcb); - s3c2410_dma_devconfig(sdd->tx_dmach, S3C2410_DMASRC_MEM, - sdd->sfr_start + S3C64XX_SPI_TX_DATA); + + struct samsung_dma_info info; + sdd->ops = samsung_dma_get_ops(); + + info.cap = DMA_SLAVE; + info.client = &s3c64xx_spi_dma_client; + info.direction = DMA_FROM_DEVICE; + info.fifo = sdd->sfr_start + S3C64XX_SPI_RX_DATA; + info.width = sdd->cur_bpw / 8; + sdd->rx_ch = sdd->ops->request(sdd->rx_dmach, &info); + info.direction = DMA_TO_DEVICE; + info.fifo = sdd->sfr_start + S3C64XX_SPI_TX_DATA; + sdd->tx_ch = sdd->ops->request(sdd->tx_dmach, &info); return 1; } @@ -799,8 +796,8 @@ static void s3c64xx_spi_work(struct work_struct *work) spin_unlock_irqrestore(&sdd->lock, flags); /* Free DMA channels */ - s3c2410_dma_free(sdd->tx_dmach, &s3c64xx_spi_dma_client); - s3c2410_dma_free(sdd->rx_dmach, &s3c64xx_spi_dma_client); + sdd->ops->release(sdd->rx_ch, &s3c64xx_spi_dma_client); + sdd->ops->release(sdd->tx_ch, &s3c64xx_spi_dma_client); } static int s3c64xx_spi_transfer(struct spi_device *spi, -- cgit v1.2.3 From 82ab8cd7ec32194757ac73a66633be73ba88ea69 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:42 +0900 Subject: spi/s3c64xx: Merge dma control code This patch modifies to merge the dma control code. Original s3c64xx spi driver has each dma control code for rx and tx channel. This patch merges these dma control codes into one. With this patch, a dma setup function and callback function handle for both rx and tx channel. Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Cc: Grant Likely Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/spi/spi-s3c64xx.c | 140 +++++++++++++++++++++++++--------------------- 1 file changed, 76 insertions(+), 64 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c index 24f49032ec35..019a7163572f 100644 --- a/drivers/spi/spi-s3c64xx.c +++ b/drivers/spi/spi-s3c64xx.c @@ -131,6 +131,12 @@ #define RXBUSY (1<<2) #define TXBUSY (1<<3) +struct s3c64xx_spi_dma_data { + unsigned ch; + enum dma_data_direction direction; + enum dma_ch dmach; +}; + /** * struct s3c64xx_spi_driver_data - Runtime info holder for SPI driver. * @clk: Pointer to the spi clock. @@ -164,15 +170,13 @@ struct s3c64xx_spi_driver_data { struct work_struct work; struct list_head queue; spinlock_t lock; - enum dma_ch rx_dmach; - enum dma_ch tx_dmach; unsigned long sfr_start; struct completion xfer_completion; unsigned state; unsigned cur_mode, cur_bpw; unsigned cur_speed; - unsigned rx_ch; - unsigned tx_ch; + struct s3c64xx_spi_dma_data rx_dma; + struct s3c64xx_spi_dma_data tx_dma; struct samsung_dma_ops *ops; }; @@ -229,36 +233,76 @@ static void flush_fifo(struct s3c64xx_spi_driver_data *sdd) writel(val, regs + S3C64XX_SPI_CH_CFG); } -static void s3c64xx_spi_dma_rxcb(void *data) +static void s3c64xx_spi_dmacb(void *data) { - struct s3c64xx_spi_driver_data *sdd - = (struct s3c64xx_spi_driver_data *)data; + struct s3c64xx_spi_driver_data *sdd; + struct s3c64xx_spi_dma_data *dma = data; unsigned long flags; + if (dma->direction == DMA_FROM_DEVICE) + sdd = container_of(data, + struct s3c64xx_spi_driver_data, rx_dma); + else + sdd = container_of(data, + struct s3c64xx_spi_driver_data, tx_dma); + spin_lock_irqsave(&sdd->lock, flags); - sdd->state &= ~RXBUSY; - /* If the other done */ - if (!(sdd->state & TXBUSY)) - complete(&sdd->xfer_completion); + if (dma->direction == DMA_FROM_DEVICE) { + sdd->state &= ~RXBUSY; + if (!(sdd->state & TXBUSY)) + complete(&sdd->xfer_completion); + } else { + sdd->state &= ~TXBUSY; + if (!(sdd->state & RXBUSY)) + complete(&sdd->xfer_completion); + } spin_unlock_irqrestore(&sdd->lock, flags); } -static void s3c64xx_spi_dma_txcb(void *data) +static void prepare_dma(struct s3c64xx_spi_dma_data *dma, + unsigned len, dma_addr_t buf) { - struct s3c64xx_spi_driver_data *sdd - = (struct s3c64xx_spi_driver_data *)data; - unsigned long flags; + struct s3c64xx_spi_driver_data *sdd; + struct samsung_dma_prep_info info; - spin_lock_irqsave(&sdd->lock, flags); + if (dma->direction == DMA_FROM_DEVICE) + sdd = container_of((void *)dma, + struct s3c64xx_spi_driver_data, rx_dma); + else + sdd = container_of((void *)dma, + struct s3c64xx_spi_driver_data, tx_dma); - sdd->state &= ~TXBUSY; - /* If the other done */ - if (!(sdd->state & RXBUSY)) - complete(&sdd->xfer_completion); + info.cap = DMA_SLAVE; + info.len = len; + info.fp = s3c64xx_spi_dmacb; + info.fp_param = dma; + info.direction = dma->direction; + info.buf = buf; + + sdd->ops->prepare(dma->ch, &info); + sdd->ops->trigger(dma->ch); +} - spin_unlock_irqrestore(&sdd->lock, flags); +static int acquire_dma(struct s3c64xx_spi_driver_data *sdd) +{ + struct samsung_dma_info info; + + sdd->ops = samsung_dma_get_ops(); + + info.cap = DMA_SLAVE; + info.client = &s3c64xx_spi_dma_client; + info.width = sdd->cur_bpw / 8; + + info.direction = sdd->rx_dma.direction; + info.fifo = sdd->sfr_start + S3C64XX_SPI_RX_DATA; + sdd->rx_dma.ch = sdd->ops->request(sdd->rx_dma.dmach, &info); + info.direction = sdd->tx_dma.direction; + info.fifo = sdd->sfr_start + S3C64XX_SPI_TX_DATA; + sdd->tx_dma.ch = sdd->ops->request(sdd->tx_dma.dmach, &info); + + return 1; } static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, @@ -268,7 +312,6 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, struct s3c64xx_spi_info *sci = sdd->cntrlr_info; void __iomem *regs = sdd->regs; u32 modecfg, chcfg; - struct samsung_dma_prep_info info; modecfg = readl(regs + S3C64XX_SPI_MODE_CFG); modecfg &= ~(S3C64XX_SPI_MODE_TXDMA_ON | S3C64XX_SPI_MODE_RXDMA_ON); @@ -294,14 +337,7 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, chcfg |= S3C64XX_SPI_CH_TXCH_ON; if (dma_mode) { modecfg |= S3C64XX_SPI_MODE_TXDMA_ON; - info.cap = DMA_SLAVE; - info.direction = DMA_TO_DEVICE; - info.buf = xfer->tx_dma; - info.len = xfer->len; - info.fp = s3c64xx_spi_dma_txcb; - info.fp_param = sdd; - sdd->ops->prepare(sdd->tx_ch, &info); - sdd->ops->trigger(sdd->tx_ch); + prepare_dma(&sdd->tx_dma, xfer->len, xfer->tx_dma); } else { switch (sdd->cur_bpw) { case 32: @@ -333,14 +369,7 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd, writel(((xfer->len * 8 / sdd->cur_bpw) & 0xffff) | S3C64XX_SPI_PACKET_CNT_EN, regs + S3C64XX_SPI_PACKET_CNT); - info.cap = DMA_SLAVE; - info.direction = DMA_FROM_DEVICE; - info.buf = xfer->rx_dma; - info.len = xfer->len; - info.fp = s3c64xx_spi_dma_rxcb; - info.fp_param = sdd; - sdd->ops->prepare(sdd->rx_ch, &info); - sdd->ops->trigger(sdd->rx_ch); + prepare_dma(&sdd->rx_dma, xfer->len, xfer->rx_dma); } } @@ -700,10 +729,10 @@ static void handle_msg(struct s3c64xx_spi_driver_data *sdd, if (use_dma) { if (xfer->tx_buf != NULL && (sdd->state & TXBUSY)) - sdd->ops->stop(sdd->tx_ch); + sdd->ops->stop(sdd->tx_dma.ch); if (xfer->rx_buf != NULL && (sdd->state & RXBUSY)) - sdd->ops->stop(sdd->rx_ch); + sdd->ops->stop(sdd->rx_dma.ch); } goto out; @@ -741,25 +770,6 @@ out: msg->complete(msg->context); } -static int acquire_dma(struct s3c64xx_spi_driver_data *sdd) -{ - - struct samsung_dma_info info; - sdd->ops = samsung_dma_get_ops(); - - info.cap = DMA_SLAVE; - info.client = &s3c64xx_spi_dma_client; - info.direction = DMA_FROM_DEVICE; - info.fifo = sdd->sfr_start + S3C64XX_SPI_RX_DATA; - info.width = sdd->cur_bpw / 8; - sdd->rx_ch = sdd->ops->request(sdd->rx_dmach, &info); - info.direction = DMA_TO_DEVICE; - info.fifo = sdd->sfr_start + S3C64XX_SPI_TX_DATA; - sdd->tx_ch = sdd->ops->request(sdd->tx_dmach, &info); - - return 1; -} - static void s3c64xx_spi_work(struct work_struct *work) { struct s3c64xx_spi_driver_data *sdd = container_of(work, @@ -796,8 +806,8 @@ static void s3c64xx_spi_work(struct work_struct *work) spin_unlock_irqrestore(&sdd->lock, flags); /* Free DMA channels */ - sdd->ops->release(sdd->rx_ch, &s3c64xx_spi_dma_client); - sdd->ops->release(sdd->tx_ch, &s3c64xx_spi_dma_client); + sdd->ops->release(sdd->rx_dma.ch, &s3c64xx_spi_dma_client); + sdd->ops->release(sdd->tx_dma.ch, &s3c64xx_spi_dma_client); } static int s3c64xx_spi_transfer(struct spi_device *spi, @@ -1014,8 +1024,10 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev) sdd->cntrlr_info = sci; sdd->pdev = pdev; sdd->sfr_start = mem_res->start; - sdd->tx_dmach = dmatx_res->start; - sdd->rx_dmach = dmarx_res->start; + sdd->tx_dma.dmach = dmatx_res->start; + sdd->tx_dma.direction = DMA_TO_DEVICE; + sdd->rx_dma.dmach = dmarx_res->start; + sdd->rx_dma.direction = DMA_FROM_DEVICE; sdd->cur_bpw = 8; @@ -1103,7 +1115,7 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev) pdev->id, master->num_chipselect); dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\tDMA=[Rx-%d, Tx-%d]\n", mem_res->end, mem_res->start, - sdd->rx_dmach, sdd->tx_dmach); + sdd->rx_dma.dmach, sdd->tx_dma.dmach); return 0; -- cgit v1.2.3 From 51ddf31da16b1ab9da861eafedad6d263faf4388 Mon Sep 17 00:00:00 2001 From: Boojin Kim Date: Fri, 2 Sep 2011 09:44:44 +0900 Subject: ARM: SAMSUNG: Remove Samsung specific enum type for dma direction This patch removes the samsung specific enum type 's3c2410_dmasrc' and uses 'dma_data_direction' instead. Signed-off-by: Boojin Kim Acked-by: Linus Walleij Acked-by: Vinod Koul Signed-off-by: Kukjin Kim Signed-off-by: Vinod Koul --- drivers/mmc/host/s3cmci.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index a04f87d7ee3d..03cfdab99c8f 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -913,9 +913,9 @@ request_done: } static void s3cmci_dma_setup(struct s3cmci_host *host, - enum s3c2410_dmasrc source) + enum dma_data_direction source) { - static enum s3c2410_dmasrc last_source = -1; + static enum dma_data_direction last_source = -1; static int setup_ok; if (last_source == source) @@ -1087,7 +1087,7 @@ static int s3cmci_prepare_dma(struct s3cmci_host *host, struct mmc_data *data) BUG_ON((data->flags & BOTH_DIR) == BOTH_DIR); - s3cmci_dma_setup(host, rw ? S3C2410_DMASRC_MEM : S3C2410_DMASRC_HW); + s3cmci_dma_setup(host, rw ? DMA_TO_DEVICE : DMA_FROM_DEVICE); s3c2410_dma_ctrl(host->dma, S3C2410_DMAOP_FLUSH); dma_len = dma_map_sg(mmc_dev(host->mmc), data->sg, data->sg_len, -- cgit v1.2.3 From 937bb6e4c676fecbfbc1939b942241c3f27bf5d8 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 24 Jun 2011 13:56:15 +0200 Subject: serial: sh-sci: don't filter on DMA device, use only channel ID On some sh-mobile systems there are more than one DMA controllers, that can be used for serial ports. Specifying a DMA device in sh-sci platform data unnecessarily restricts the driver to only use one DMA controller. Signed-off-by: Guennadi Liakhovetski [Fixed the trivial conflict in include/linux/serial_sci.h] Signed-off-by: Vinod Koul --- drivers/tty/serial/sh-sci.c | 25 ++++++++----------------- 1 file changed, 8 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index a9414facda47..dbd32a1286d3 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -1439,12 +1439,8 @@ static bool filter(struct dma_chan *chan, void *slave) dev_dbg(chan->device->dev, "%s: slave ID %d\n", __func__, param->slave_id); - if (param->dma_dev == chan->device->dev) { - chan->private = param; - return true; - } else { - return false; - } + chan->private = param; + return true; } static void rx_timer_fn(unsigned long arg) @@ -1470,10 +1466,10 @@ static void sci_request_dma(struct uart_port *port) dma_cap_mask_t mask; int nent; - dev_dbg(port->dev, "%s: port %d DMA %p\n", __func__, - port->line, s->cfg->dma_dev); + dev_dbg(port->dev, "%s: port %d\n", __func__, + port->line); - if (!s->cfg->dma_dev) + if (s->cfg->dma_slave_tx <= 0 || s->cfg->dma_slave_rx <= 0) return; dma_cap_zero(mask); @@ -1483,7 +1479,6 @@ static void sci_request_dma(struct uart_port *port) /* Slave ID, e.g., SHDMA_SLAVE_SCIF0_TX */ param->slave_id = s->cfg->dma_slave_tx; - param->dma_dev = s->cfg->dma_dev; s->cookie_tx = -EINVAL; chan = dma_request_channel(mask, filter, param); @@ -1512,7 +1507,6 @@ static void sci_request_dma(struct uart_port *port) /* Slave ID, e.g., SHDMA_SLAVE_SCIF0_RX */ param->slave_id = s->cfg->dma_slave_rx; - param->dma_dev = s->cfg->dma_dev; chan = dma_request_channel(mask, filter, param); dev_dbg(port->dev, "%s: RX: got channel %p\n", __func__, chan); @@ -1557,9 +1551,6 @@ static void sci_free_dma(struct uart_port *port) { struct sci_port *s = to_sci_port(port); - if (!s->cfg->dma_dev) - return; - if (s->chan_tx) sci_tx_dma_release(s, false); if (s->chan_rx) @@ -1967,9 +1958,9 @@ static int __devinit sci_init_single(struct platform_device *dev, port->serial_in = sci_serial_in; port->serial_out = sci_serial_out; - if (p->dma_dev) - dev_dbg(port->dev, "DMA device %p, tx %d, rx %d\n", - p->dma_dev, p->dma_slave_tx, p->dma_slave_rx); + if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) + dev_dbg(port->dev, "DMA tx %d, rx %d\n", + p->dma_slave_tx, p->dma_slave_rx); return 0; } -- cgit v1.2.3 From b7f69d9d4283cfbbf7458962cf9bdba6463b831d Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:43 +0530 Subject: dmaengine/amba-pl08x: Add support for sg len greater than one for slave transfers Untill now, sg_len greater than one is not supported. This patch adds support to do that. Note: Still, if peripheral is flow controller, sg_len can't be greater that one. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 378 +++++++++++++++++++++++++++-------------------- 1 file changed, 215 insertions(+), 163 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index cd8df7f5b5c8..2c390d1b9cad 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -352,7 +352,9 @@ static u32 pl08x_getbytes_chan(struct pl08x_dma_chan *plchan) if (!list_empty(&plchan->pend_list)) { struct pl08x_txd *txdi; list_for_each_entry(txdi, &plchan->pend_list, node) { - bytes += txdi->len; + struct pl08x_sg *dsg; + list_for_each_entry(dsg, &txd->dsg_list, node) + bytes += dsg->len; } } @@ -567,8 +569,9 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, struct pl08x_lli_build_data bd; int num_llis = 0; u32 cctl, early_bytes = 0; - size_t max_bytes_per_lli, total_bytes = 0; + size_t max_bytes_per_lli, total_bytes; struct pl08x_lli *llis_va; + struct pl08x_sg *dsg; txd->llis_va = dma_pool_alloc(pl08x->pool, GFP_NOWAIT, &txd->llis_bus); if (!txd->llis_va) { @@ -578,13 +581,9 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, pl08x->pool_ctr++; - /* Get the default CCTL */ - cctl = txd->cctl; - bd.txd = txd; - bd.srcbus.addr = txd->src_addr; - bd.dstbus.addr = txd->dst_addr; bd.lli_bus = (pl08x->lli_buses & PL08X_AHB2) ? PL080_LLI_LM_AHB2 : 0; + cctl = txd->cctl; /* Find maximum width of the source bus */ bd.srcbus.maxwidth = @@ -596,162 +595,179 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, pl08x_get_bytes_for_cctl((cctl & PL080_CONTROL_DWIDTH_MASK) >> PL080_CONTROL_DWIDTH_SHIFT); - /* Set up the bus widths to the maximum */ - bd.srcbus.buswidth = bd.srcbus.maxwidth; - bd.dstbus.buswidth = bd.dstbus.maxwidth; + list_for_each_entry(dsg, &txd->dsg_list, node) { + total_bytes = 0; + cctl = txd->cctl; - /* We need to count this down to zero */ - bd.remainder = txd->len; + bd.srcbus.addr = dsg->src_addr; + bd.dstbus.addr = dsg->dst_addr; + bd.remainder = dsg->len; + bd.srcbus.buswidth = bd.srcbus.maxwidth; + bd.dstbus.buswidth = bd.dstbus.maxwidth; - pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl); + pl08x_choose_master_bus(&bd, &mbus, &sbus, cctl); - dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu\n", - bd.srcbus.addr, cctl & PL080_CONTROL_SRC_INCR ? "+" : "", - bd.srcbus.buswidth, - bd.dstbus.addr, cctl & PL080_CONTROL_DST_INCR ? "+" : "", - bd.dstbus.buswidth, - bd.remainder); - dev_vdbg(&pl08x->adev->dev, "mbus=%s sbus=%s\n", - mbus == &bd.srcbus ? "src" : "dst", - sbus == &bd.srcbus ? "src" : "dst"); + dev_vdbg(&pl08x->adev->dev, "src=0x%08x%s/%u dst=0x%08x%s/%u len=%zu\n", + bd.srcbus.addr, cctl & PL080_CONTROL_SRC_INCR ? "+" : "", + bd.srcbus.buswidth, + bd.dstbus.addr, cctl & PL080_CONTROL_DST_INCR ? "+" : "", + bd.dstbus.buswidth, + bd.remainder); + dev_vdbg(&pl08x->adev->dev, "mbus=%s sbus=%s\n", + mbus == &bd.srcbus ? "src" : "dst", + sbus == &bd.srcbus ? "src" : "dst"); - /* - * Zero length is only allowed if all these requirements are met: - * - flow controller is peripheral. - * - src.addr is aligned to src.width - * - dst.addr is aligned to dst.width - * - * sg_len == 1 should be true, as there can be two cases here: - * - Memory addresses are contiguous and are not scattered. Here, Only - * one sg will be passed by user driver, with memory address and zero - * length. We pass this to controller and after the transfer it will - * receive the last burst request from peripheral and so transfer - * finishes. - * - * - Memory addresses are scattered and are not contiguous. Here, - * Obviously as DMA controller doesn't know when a lli's transfer gets - * over, it can't load next lli. So in this case, there has to be an - * assumption that only one lli is supported. Thus, we can't have - * scattered addresses. - */ - if (!bd.remainder) { - u32 fc = (txd->ccfg & PL080_CONFIG_FLOW_CONTROL_MASK) >> - PL080_CONFIG_FLOW_CONTROL_SHIFT; - if (!((fc >= PL080_FLOW_SRC2DST_DST) && + /* + * Zero length is only allowed if all these requirements are + * met: + * - flow controller is peripheral. + * - src.addr is aligned to src.width + * - dst.addr is aligned to dst.width + * + * sg_len == 1 should be true, as there can be two cases here: + * + * - Memory addresses are contiguous and are not scattered. + * Here, Only one sg will be passed by user driver, with + * memory address and zero length. We pass this to controller + * and after the transfer it will receive the last burst + * request from peripheral and so transfer finishes. + * + * - Memory addresses are scattered and are not contiguous. + * Here, Obviously as DMA controller doesn't know when a lli's + * transfer gets over, it can't load next lli. So in this + * case, there has to be an assumption that only one lli is + * supported. Thus, we can't have scattered addresses. + */ + if (!bd.remainder) { + u32 fc = (txd->ccfg & PL080_CONFIG_FLOW_CONTROL_MASK) >> + PL080_CONFIG_FLOW_CONTROL_SHIFT; + if (!((fc >= PL080_FLOW_SRC2DST_DST) && (fc <= PL080_FLOW_SRC2DST_SRC))) { - dev_err(&pl08x->adev->dev, "%s sg len can't be zero", - __func__); - return 0; - } - - if ((bd.srcbus.addr % bd.srcbus.buswidth) || - (bd.srcbus.addr % bd.srcbus.buswidth)) { - dev_err(&pl08x->adev->dev, - "%s src & dst address must be aligned to src" - " & dst width if peripheral is flow controller", - __func__); - return 0; - } - - cctl = pl08x_cctl_bits(cctl, bd.srcbus.buswidth, - bd.dstbus.buswidth, 0); - pl08x_fill_lli_for_desc(&bd, num_llis++, 0, cctl); - } + dev_err(&pl08x->adev->dev, "%s sg len can't be zero", + __func__); + return 0; + } - /* - * Send byte by byte for following cases - * - Less than a bus width available - * - until master bus is aligned - */ - if (bd.remainder < mbus->buswidth) - early_bytes = bd.remainder; - else if ((mbus->addr) % (mbus->buswidth)) { - early_bytes = mbus->buswidth - (mbus->addr) % (mbus->buswidth); - if ((bd.remainder - early_bytes) < mbus->buswidth) - early_bytes = bd.remainder; - } + if ((bd.srcbus.addr % bd.srcbus.buswidth) || + (bd.srcbus.addr % bd.srcbus.buswidth)) { + dev_err(&pl08x->adev->dev, + "%s src & dst address must be aligned to src" + " & dst width if peripheral is flow controller", + __func__); + return 0; + } - if (early_bytes) { - dev_vdbg(&pl08x->adev->dev, "%s byte width LLIs " - "(remain 0x%08x)\n", __func__, bd.remainder); - prep_byte_width_lli(&bd, &cctl, early_bytes, num_llis++, - &total_bytes); - } + cctl = pl08x_cctl_bits(cctl, bd.srcbus.buswidth, + bd.dstbus.buswidth, 0); + pl08x_fill_lli_for_desc(&bd, num_llis++, 0, cctl); + break; + } - if (bd.remainder) { /* - * Master now aligned - * - if slave is not then we must set its width down + * Send byte by byte for following cases + * - Less than a bus width available + * - until master bus is aligned */ - if (sbus->addr % sbus->buswidth) { - dev_dbg(&pl08x->adev->dev, - "%s set down bus width to one byte\n", - __func__); + if (bd.remainder < mbus->buswidth) + early_bytes = bd.remainder; + else if ((mbus->addr) % (mbus->buswidth)) { + early_bytes = mbus->buswidth - (mbus->addr) % + (mbus->buswidth); + if ((bd.remainder - early_bytes) < mbus->buswidth) + early_bytes = bd.remainder; + } - sbus->buswidth = 1; + if (early_bytes) { + dev_vdbg(&pl08x->adev->dev, + "%s byte width LLIs (remain 0x%08x)\n", + __func__, bd.remainder); + prep_byte_width_lli(&bd, &cctl, early_bytes, num_llis++, + &total_bytes); } - /* Bytes transferred = tsize * src width, not MIN(buswidths) */ - max_bytes_per_lli = bd.srcbus.buswidth * - PL080_CONTROL_TRANSFER_SIZE_MASK; + if (bd.remainder) { + /* + * Master now aligned + * - if slave is not then we must set its width down + */ + if (sbus->addr % sbus->buswidth) { + dev_dbg(&pl08x->adev->dev, + "%s set down bus width to one byte\n", + __func__); - /* - * Make largest possible LLIs until less than one bus - * width left - */ - while (bd.remainder > (mbus->buswidth - 1)) { - size_t lli_len, tsize, width; + sbus->buswidth = 1; + } /* - * If enough left try to send max possible, - * otherwise try to send the remainder + * Bytes transferred = tsize * src width, not + * MIN(buswidths) */ - lli_len = min(bd.remainder, max_bytes_per_lli); + max_bytes_per_lli = bd.srcbus.buswidth * + PL080_CONTROL_TRANSFER_SIZE_MASK; + dev_vdbg(&pl08x->adev->dev, + "%s max bytes per lli = %zu\n", + __func__, max_bytes_per_lli); /* - * Check against maximum bus alignment: Calculate actual - * transfer size in relation to bus width and get a - * maximum remainder of the highest bus width - 1 + * Make largest possible LLIs until less than one bus + * width left */ - width = max(mbus->buswidth, sbus->buswidth); - lli_len = (lli_len / width) * width; - tsize = lli_len / bd.srcbus.buswidth; + while (bd.remainder > (mbus->buswidth - 1)) { + size_t lli_len, tsize, width; - dev_vdbg(&pl08x->adev->dev, - "%s fill lli with single lli chunk of " - "size 0x%08zx (remainder 0x%08zx)\n", - __func__, lli_len, bd.remainder); + /* + * If enough left try to send max possible, + * otherwise try to send the remainder + */ + lli_len = min(bd.remainder, max_bytes_per_lli); - cctl = pl08x_cctl_bits(cctl, bd.srcbus.buswidth, + /* + * Check against maximum bus alignment: + * Calculate actual transfer size in relation to + * bus width an get a maximum remainder of the + * highest bus width - 1 + */ + width = max(mbus->buswidth, sbus->buswidth); + lli_len = (lli_len / width) * width; + tsize = lli_len / bd.srcbus.buswidth; + + dev_vdbg(&pl08x->adev->dev, + "%s fill lli with single lli chunk of " + "size 0x%08zx (remainder 0x%08zx)\n", + __func__, lli_len, bd.remainder); + + cctl = pl08x_cctl_bits(cctl, bd.srcbus.buswidth, bd.dstbus.buswidth, tsize); - pl08x_fill_lli_for_desc(&bd, num_llis++, lli_len, cctl); - total_bytes += lli_len; - } + pl08x_fill_lli_for_desc(&bd, num_llis++, + lli_len, cctl); + total_bytes += lli_len; + } - /* - * Send any odd bytes - */ - if (bd.remainder) { - dev_vdbg(&pl08x->adev->dev, - "%s align with boundary, send odd bytes (remain %zu)\n", - __func__, bd.remainder); - prep_byte_width_lli(&bd, &cctl, bd.remainder, - num_llis++, &total_bytes); + /* + * Send any odd bytes + */ + if (bd.remainder) { + dev_vdbg(&pl08x->adev->dev, + "%s align with boundary, send odd bytes (remain %zu)\n", + __func__, bd.remainder); + prep_byte_width_lli(&bd, &cctl, bd.remainder, + num_llis++, &total_bytes); + } } - } - if (total_bytes != txd->len) { - dev_err(&pl08x->adev->dev, - "%s size of encoded lli:s don't match total txd, transferred 0x%08zx from size 0x%08zx\n", - __func__, total_bytes, txd->len); - return 0; - } + if (total_bytes != dsg->len) { + dev_err(&pl08x->adev->dev, + "%s size of encoded lli:s don't match total txd, transferred 0x%08zx from size 0x%08zx\n", + __func__, total_bytes, dsg->len); + return 0; + } - if (num_llis >= MAX_NUM_TSFR_LLIS) { - dev_err(&pl08x->adev->dev, - "%s need to increase MAX_NUM_TSFR_LLIS from 0x%08x\n", - __func__, (u32) MAX_NUM_TSFR_LLIS); - return 0; + if (num_llis >= MAX_NUM_TSFR_LLIS) { + dev_err(&pl08x->adev->dev, + "%s need to increase MAX_NUM_TSFR_LLIS from 0x%08x\n", + __func__, (u32) MAX_NUM_TSFR_LLIS); + return 0; + } } llis_va = txd->llis_va; @@ -784,11 +800,18 @@ static int pl08x_fill_llis_for_desc(struct pl08x_driver_data *pl08x, static void pl08x_free_txd(struct pl08x_driver_data *pl08x, struct pl08x_txd *txd) { + struct pl08x_sg *dsg, *_dsg; + /* Free the LLI */ dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus); pl08x->pool_ctr--; + list_for_each_entry_safe(dsg, _dsg, &txd->dsg_list, node) { + list_del(&dsg->node); + kfree(dsg); + } + kfree(txd); } @@ -1234,6 +1257,7 @@ static struct pl08x_txd *pl08x_get_txd(struct pl08x_dma_chan *plchan, txd->tx.flags = flags; txd->tx.tx_submit = pl08x_tx_submit; INIT_LIST_HEAD(&txd->node); + INIT_LIST_HEAD(&txd->dsg_list); /* Always enable error and terminal interrupts */ txd->ccfg = PL080_CONFIG_ERR_IRQ_MASK | @@ -1252,6 +1276,7 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy( struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); struct pl08x_driver_data *pl08x = plchan->host; struct pl08x_txd *txd; + struct pl08x_sg *dsg; int ret; txd = pl08x_get_txd(plchan, flags); @@ -1261,10 +1286,19 @@ static struct dma_async_tx_descriptor *pl08x_prep_dma_memcpy( return NULL; } + dsg = kzalloc(sizeof(struct pl08x_sg), GFP_NOWAIT); + if (!dsg) { + pl08x_free_txd(pl08x, txd); + dev_err(&pl08x->adev->dev, "%s no memory for pl080 sg\n", + __func__); + return NULL; + } + list_add_tail(&dsg->node, &txd->dsg_list); + txd->direction = DMA_NONE; - txd->src_addr = src; - txd->dst_addr = dest; - txd->len = len; + dsg->src_addr = src; + dsg->dst_addr = dest; + dsg->len = len; /* Set platform data for m2m */ txd->ccfg |= PL080_FLOW_MEM2MEM << PL080_CONFIG_FLOW_CONTROL_SHIFT; @@ -1293,19 +1327,13 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( struct pl08x_dma_chan *plchan = to_pl08x_chan(chan); struct pl08x_driver_data *pl08x = plchan->host; struct pl08x_txd *txd; + struct pl08x_sg *dsg; + struct scatterlist *sg; + dma_addr_t slave_addr; int ret, tmp; - /* - * Current implementation ASSUMES only one sg - */ - if (sg_len != 1) { - dev_err(&pl08x->adev->dev, "%s prepared too long sglist\n", - __func__); - BUG(); - } - dev_dbg(&pl08x->adev->dev, "%s prepare transaction of %d bytes from %s\n", - __func__, sgl->length, plchan->name); + __func__, sgl->length, plchan->name); txd = pl08x_get_txd(plchan, flags); if (!txd) { @@ -1324,17 +1352,15 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( * channel target address dynamically at runtime. */ txd->direction = direction; - txd->len = sgl->length; if (direction == DMA_TO_DEVICE) { txd->cctl = plchan->dst_cctl; - txd->src_addr = sgl->dma_address; - txd->dst_addr = plchan->dst_addr; + slave_addr = plchan->dst_addr; } else if (direction == DMA_FROM_DEVICE) { txd->cctl = plchan->src_cctl; - txd->src_addr = plchan->src_addr; - txd->dst_addr = sgl->dma_address; + slave_addr = plchan->src_addr; } else { + pl08x_free_txd(pl08x, txd); dev_err(&pl08x->adev->dev, "%s direction unsupported\n", __func__); return NULL; @@ -1349,6 +1375,26 @@ static struct dma_async_tx_descriptor *pl08x_prep_slave_sg( txd->ccfg |= tmp << PL080_CONFIG_FLOW_CONTROL_SHIFT; + for_each_sg(sgl, sg, sg_len, tmp) { + dsg = kzalloc(sizeof(struct pl08x_sg), GFP_NOWAIT); + if (!dsg) { + pl08x_free_txd(pl08x, txd); + dev_err(&pl08x->adev->dev, "%s no mem for pl080 sg\n", + __func__); + return NULL; + } + list_add_tail(&dsg->node, &txd->dsg_list); + + dsg->len = sg_dma_len(sg); + if (direction == DMA_TO_DEVICE) { + dsg->src_addr = sg_phys(sg); + dsg->dst_addr = slave_addr; + } else { + dsg->src_addr = slave_addr; + dsg->dst_addr = sg_phys(sg); + } + } + ret = pl08x_prep_channel_resources(plchan, txd); if (ret) return NULL; @@ -1452,22 +1498,28 @@ static void pl08x_ensure_on(struct pl08x_driver_data *pl08x) static void pl08x_unmap_buffers(struct pl08x_txd *txd) { struct device *dev = txd->tx.chan->device->dev; + struct pl08x_sg *dsg; if (!(txd->tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) { if (txd->tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE) - dma_unmap_single(dev, txd->src_addr, txd->len, - DMA_TO_DEVICE); - else - dma_unmap_page(dev, txd->src_addr, txd->len, - DMA_TO_DEVICE); + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_single(dev, dsg->src_addr, dsg->len, + DMA_TO_DEVICE); + else { + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_page(dev, dsg->src_addr, dsg->len, + DMA_TO_DEVICE); + } } if (!(txd->tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) { if (txd->tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE) - dma_unmap_single(dev, txd->dst_addr, txd->len, - DMA_FROM_DEVICE); + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_single(dev, dsg->dst_addr, dsg->len, + DMA_FROM_DEVICE); else - dma_unmap_page(dev, txd->dst_addr, txd->len, - DMA_FROM_DEVICE); + list_for_each_entry(dsg, &txd->dsg_list, node) + dma_unmap_page(dev, dsg->dst_addr, dsg->len, + DMA_FROM_DEVICE); } } -- cgit v1.2.3 From c12056466d76cdff884402d15f077dd0586e5215 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Fri, 5 Aug 2011 15:32:44 +0530 Subject: dmaengine/amba-pl08x: Check txd->llis_va before freeing dma_pool In pl08x_free_txd(), check if pool is allocated successfully before freeing it. Signed-off-by: Viresh Kumar Acked-by: Linus Walleij Signed-off-by: Vinod Koul --- drivers/dma/amba-pl08x.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 2c390d1b9cad..b7cbd1ab1db1 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -803,7 +803,8 @@ static void pl08x_free_txd(struct pl08x_driver_data *pl08x, struct pl08x_sg *dsg, *_dsg; /* Free the LLI */ - dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus); + if (txd->llis_va) + dma_pool_free(pl08x->pool, txd->llis_va, txd->llis_bus); pl08x->pool_ctr--; -- cgit v1.2.3 From 7df5659eefad9b6d457ccdee016bd78bd064cfc0 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 27 Jun 2011 11:45:16 +0000 Subject: serial/8250: Move UPIO_TSI to powerpc This iotype is only used by the legacy_serial code in powerpc, so the code should live there, rather than be compiled in for every 8250 driver. Signed-off-by: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: linuxppc-dev@lists.ozlabs.org Cc: Greg Kroah-Hartman Cc: linux-serial@vger.kernel.org Acked-by: David Daney Signed-off-by: Benjamin Herrenschmidt --- drivers/tty/serial/8250.c | 23 ----------------------- 1 file changed, 23 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c index 7f50999eebc2..610b8e63710d 100644 --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -443,24 +443,6 @@ static void au_serial_out(struct uart_port *p, int offset, int value) __raw_writel(value, p->membase + offset); } -static unsigned int tsi_serial_in(struct uart_port *p, int offset) -{ - unsigned int tmp; - offset = map_8250_in_reg(p, offset) << p->regshift; - if (offset == UART_IIR) { - tmp = readl(p->membase + (UART_IIR & ~3)); - return (tmp >> 16) & 0xff; /* UART_IIR % 4 == 2 */ - } else - return readb(p->membase + offset); -} - -static void tsi_serial_out(struct uart_port *p, int offset, int value) -{ - offset = map_8250_out_reg(p, offset) << p->regshift; - if (!((offset == UART_IER) && (value & UART_IER_UUE))) - writeb(value, p->membase + offset); -} - /* Save the LCR value so it can be re-written when a Busy Detect IRQ occurs. */ static inline void dwapb_save_out_value(struct uart_port *p, int offset, int value) @@ -535,11 +517,6 @@ static void set_io_from_upio(struct uart_port *p) p->serial_out = au_serial_out; break; - case UPIO_TSI: - p->serial_in = tsi_serial_in; - p->serial_out = tsi_serial_out; - break; - case UPIO_DWAPB: p->serial_in = mem_serial_in; p->serial_out = dwapb_serial_out; -- cgit v1.2.3 From c26afe9e8591f306d79aab8071f1d34e4f60b700 Mon Sep 17 00:00:00 2001 From: Hector Martin Date: Wed, 31 Aug 2011 06:32:26 +0000 Subject: powerpc/ps3: Add gelic udbg driver Add a new udbg driver for the PS3 gelic Ehthernet device. This driver shares only a few stucture and constant definitions with the gelic Ethernet device driver, so is implemented as a stand-alone driver with no dependencies on the gelic Ethernet device driver. Signed-off-by: Hector Martin Signed-off-by: Andre Heider Signed-off-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt --- drivers/net/ps3_gelic_net.c | 3 +++ drivers/net/ps3_gelic_net.h | 6 ++++++ 2 files changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ps3_gelic_net.c b/drivers/net/ps3_gelic_net.c index d82a82d9870c..e743c9418ac9 100644 --- a/drivers/net/ps3_gelic_net.c +++ b/drivers/net/ps3_gelic_net.c @@ -1674,6 +1674,9 @@ static int __devinit ps3_gelic_driver_probe(struct ps3_system_bus_device *dev) int result; pr_debug("%s: called\n", __func__); + + udbg_shutdown_ps3gelic(); + result = ps3_open_hv_device(dev); if (result) { diff --git a/drivers/net/ps3_gelic_net.h b/drivers/net/ps3_gelic_net.h index d3fadfbc3bcc..a93df6ac1909 100644 --- a/drivers/net/ps3_gelic_net.h +++ b/drivers/net/ps3_gelic_net.h @@ -359,6 +359,12 @@ static inline void *port_priv(struct gelic_port *port) return port->priv; } +#ifdef CONFIG_PPC_EARLY_DEBUG_PS3GELIC +extern void udbg_shutdown_ps3gelic(void); +#else +static inline void udbg_shutdown_ps3gelic(void) {} +#endif + extern int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask); /* shared netdev ops */ extern void gelic_card_up(struct gelic_card *card); -- cgit v1.2.3 From ac07a4a57f7408922a0b3d4dcb87104fe8a3d8ca Mon Sep 17 00:00:00 2001 From: Brian King Date: Tue, 13 Sep 2011 11:22:51 +0000 Subject: hvcs: Ensure page aligned partner info buffer The Power platform requires the partner info buffer to be page aligned otherwise it will fail the partner info hcall with H_PARAMETER. Switch from using kmalloc to allocate this buffer to __get_free_page to ensure page alignment. Signed-off-by: Brian King Signed-off-by: Benjamin Herrenschmidt --- drivers/tty/hvc/hvcs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c index 4c8b66546930..39291665eca3 100644 --- a/drivers/tty/hvc/hvcs.c +++ b/drivers/tty/hvc/hvcs.c @@ -1532,7 +1532,7 @@ static int __devinit hvcs_initialize(void) goto register_fail; } - hvcs_pi_buff = kmalloc(PAGE_SIZE, GFP_KERNEL); + hvcs_pi_buff = (unsigned long *) __get_free_page(GFP_KERNEL); if (!hvcs_pi_buff) { rc = -ENOMEM; goto buff_alloc_fail; @@ -1548,7 +1548,7 @@ static int __devinit hvcs_initialize(void) return 0; kthread_fail: - kfree(hvcs_pi_buff); + free_page((unsigned long)hvcs_pi_buff); buff_alloc_fail: tty_unregister_driver(hvcs_tty_driver); register_fail: @@ -1597,7 +1597,7 @@ static void __exit hvcs_module_exit(void) kthread_stop(hvcs_task); spin_lock(&hvcs_pi_lock); - kfree(hvcs_pi_buff); + free_page((unsigned long)hvcs_pi_buff); hvcs_pi_buff = NULL; spin_unlock(&hvcs_pi_lock); -- cgit v1.2.3 From 78b782cb788cadbda151ecb61753c109602a250c Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 19 Sep 2011 18:50:15 +0000 Subject: of: Change logic to overwrite cmd_line with CONFIG_CMDLINE We used to overwrite with CONFIG_CMDLINE if we found a chosen node but failed to get bootargs out of it or they were empty, unless CONFIG_CMDLINE_FORCE is set. Instead change that to overwrite if "data" is non empty after the bootargs check. It allows arch code to have other mechanisms to retrieve the command line prior to parsing the device-tree. Note: CONFIG_CMDLINE_FORCE case should ideally be handled elsewhere as it won't work as it-is if the device-tree has no /chosen node Signed-off-by: Benjamin Herrenschmidt CC: devicetree-discuss@lists-ozlabs.org CC: Grant Likely Acked-by: Grant Likely --- drivers/of/fdt.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 65200af29c52..4af69a3564cc 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -681,9 +681,14 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname, if (p != NULL && l > 0) strlcpy(data, p, min((int)l, COMMAND_LINE_SIZE)); + /* + * CONFIG_CMDLINE is meant to be a default in case nothing else + * managed to set the command line, unless CONFIG_CMDLINE_FORCE + * is set in which case we override whatever was found earlier. + */ #ifdef CONFIG_CMDLINE #ifndef CONFIG_CMDLINE_FORCE - if (p == NULL || l == 0 || (l == 1 && (*p) == 0)) + if (!((char *)data)[0]) #endif strlcpy(data, CONFIG_CMDLINE, COMMAND_LINE_SIZE); #endif /* CONFIG_CMDLINE */ -- cgit v1.2.3 From daea1175a9f0f70eab5b33e2827d57ba8c686816 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Mon, 19 Sep 2011 17:44:59 +0000 Subject: powerpc/powernv: Support for OPAL console This adds a udbg and an hvc console backend for supporting a console using the OPAL console interfaces. On OPAL v1 we have hvc0 mapped to whatever console the system was configured for (network or hvsi serial port) via the service processor. On OPAL v2 we have hvcN mapped to the Nth console provided by OPAL which generally corresponds to: hvc0 : network console (raw protocol) hvc1 : serial port S1 (hvsi) hvc2 : serial port S2 (hvsi) Note: At this point, early debug console only works with OPAL v1 and shouldn't be enabled in a normal kernel. Signed-off-by: Benjamin Herrenschmidt --- drivers/tty/hvc/Kconfig | 9 + drivers/tty/hvc/Makefile | 1 + drivers/tty/hvc/hvc_opal.c | 424 +++++++++++++++++++++++++++++++++++++++++++++ drivers/tty/hvc/hvsi_lib.c | 4 +- 4 files changed, 436 insertions(+), 2 deletions(-) create mode 100644 drivers/tty/hvc/hvc_opal.c (limited to 'drivers') diff --git a/drivers/tty/hvc/Kconfig b/drivers/tty/hvc/Kconfig index e371753ba921..4222035acfb7 100644 --- a/drivers/tty/hvc/Kconfig +++ b/drivers/tty/hvc/Kconfig @@ -34,6 +34,15 @@ config HVC_ISERIES help iSeries machines support a hypervisor virtual console. +config HVC_OPAL + bool "OPAL Console support" + depends on PPC_POWERNV + select HVC_DRIVER + select HVC_IRQ + default y + help + PowerNV machines running under OPAL need that driver to get a console + config HVC_RTAS bool "IBM RTAS Console support" depends on PPC_RTAS diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile index e29205316376..89abf40bc73d 100644 --- a/drivers/tty/hvc/Makefile +++ b/drivers/tty/hvc/Makefile @@ -1,4 +1,5 @@ obj-$(CONFIG_HVC_CONSOLE) += hvc_vio.o hvsi_lib.o +obj-$(CONFIG_HVC_OPAL) += hvc_opal.o hvsi_lib.o obj-$(CONFIG_HVC_OLD_HVSI) += hvsi.o obj-$(CONFIG_HVC_ISERIES) += hvc_iseries.o obj-$(CONFIG_HVC_RTAS) += hvc_rtas.o diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c new file mode 100644 index 000000000000..7b38512d6c41 --- /dev/null +++ b/drivers/tty/hvc/hvc_opal.c @@ -0,0 +1,424 @@ +/* + * opal driver interface to hvc_console.c + * + * Copyright 2011 Benjamin Herrenschmidt , IBM Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#undef DEBUG + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include "hvc_console.h" + +static const char hvc_opal_name[] = "hvc_opal"; + +static struct of_device_id hvc_opal_match[] __devinitdata = { + { .name = "serial", .compatible = "ibm,opal-console-raw" }, + { .name = "serial", .compatible = "ibm,opal-console-hvsi" }, + { }, +}; + +typedef enum hv_protocol { + HV_PROTOCOL_RAW, + HV_PROTOCOL_HVSI +} hv_protocol_t; + +struct hvc_opal_priv { + hv_protocol_t proto; /* Raw data or HVSI packets */ + struct hvsi_priv hvsi; /* HVSI specific data */ +}; +static struct hvc_opal_priv *hvc_opal_privs[MAX_NR_HVC_CONSOLES]; + +/* For early boot console */ +static struct hvc_opal_priv hvc_opal_boot_priv; +static u32 hvc_opal_boot_termno; + +static const struct hv_ops hvc_opal_raw_ops = { + .get_chars = opal_get_chars, + .put_chars = opal_put_chars, + .notifier_add = notifier_add_irq, + .notifier_del = notifier_del_irq, + .notifier_hangup = notifier_hangup_irq, +}; + +static int hvc_opal_hvsi_get_chars(uint32_t vtermno, char *buf, int count) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[vtermno]; + + if (WARN_ON(!pv)) + return -ENODEV; + + return hvsilib_get_chars(&pv->hvsi, buf, count); +} + +static int hvc_opal_hvsi_put_chars(uint32_t vtermno, const char *buf, int count) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[vtermno]; + + if (WARN_ON(!pv)) + return -ENODEV; + + return hvsilib_put_chars(&pv->hvsi, buf, count); +} + +static int hvc_opal_hvsi_open(struct hvc_struct *hp, int data) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[hp->vtermno]; + int rc; + + pr_devel("HVSI@%x: do open !\n", hp->vtermno); + + rc = notifier_add_irq(hp, data); + if (rc) + return rc; + + return hvsilib_open(&pv->hvsi, hp); +} + +static void hvc_opal_hvsi_close(struct hvc_struct *hp, int data) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[hp->vtermno]; + + pr_devel("HVSI@%x: do close !\n", hp->vtermno); + + hvsilib_close(&pv->hvsi, hp); + + notifier_del_irq(hp, data); +} + +void hvc_opal_hvsi_hangup(struct hvc_struct *hp, int data) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[hp->vtermno]; + + pr_devel("HVSI@%x: do hangup !\n", hp->vtermno); + + hvsilib_close(&pv->hvsi, hp); + + notifier_hangup_irq(hp, data); +} + +static int hvc_opal_hvsi_tiocmget(struct hvc_struct *hp) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[hp->vtermno]; + + if (!pv) + return -EINVAL; + return pv->hvsi.mctrl; +} + +static int hvc_opal_hvsi_tiocmset(struct hvc_struct *hp, unsigned int set, + unsigned int clear) +{ + struct hvc_opal_priv *pv = hvc_opal_privs[hp->vtermno]; + + pr_devel("HVSI@%x: Set modem control, set=%x,clr=%x\n", + hp->vtermno, set, clear); + + if (set & TIOCM_DTR) + hvsilib_write_mctrl(&pv->hvsi, 1); + else if (clear & TIOCM_DTR) + hvsilib_write_mctrl(&pv->hvsi, 0); + + return 0; +} + +static const struct hv_ops hvc_opal_hvsi_ops = { + .get_chars = hvc_opal_hvsi_get_chars, + .put_chars = hvc_opal_hvsi_put_chars, + .notifier_add = hvc_opal_hvsi_open, + .notifier_del = hvc_opal_hvsi_close, + .notifier_hangup = hvc_opal_hvsi_hangup, + .tiocmget = hvc_opal_hvsi_tiocmget, + .tiocmset = hvc_opal_hvsi_tiocmset, +}; + +static int __devinit hvc_opal_probe(struct platform_device *dev) +{ + const struct hv_ops *ops; + struct hvc_struct *hp; + struct hvc_opal_priv *pv; + hv_protocol_t proto; + unsigned int termno, boot = 0; + const __be32 *reg; + + if (of_device_is_compatible(dev->dev.of_node, "ibm,opal-console-raw")) { + proto = HV_PROTOCOL_RAW; + ops = &hvc_opal_raw_ops; + } else if (of_device_is_compatible(dev->dev.of_node, + "ibm,opal-console-hvsi")) { + proto = HV_PROTOCOL_HVSI; + ops = &hvc_opal_hvsi_ops; + } else { + pr_err("hvc_opal: Unkown protocol for %s\n", + dev->dev.of_node->full_name); + return -ENXIO; + } + + reg = of_get_property(dev->dev.of_node, "reg", NULL); + termno = reg ? be32_to_cpup(reg) : 0; + + /* Is it our boot one ? */ + if (hvc_opal_privs[termno] == &hvc_opal_boot_priv) { + pv = hvc_opal_privs[termno]; + boot = 1; + } else if (hvc_opal_privs[termno] == NULL) { + pv = kzalloc(sizeof(struct hvc_opal_priv), GFP_KERNEL); + if (!pv) + return -ENOMEM; + pv->proto = proto; + hvc_opal_privs[termno] = pv; + if (proto == HV_PROTOCOL_HVSI) + hvsilib_init(&pv->hvsi, opal_get_chars, opal_put_chars, + termno, 0); + + /* Instanciate now to establish a mapping index==vtermno */ + hvc_instantiate(termno, termno, ops); + } else { + pr_err("hvc_opal: Device %s has duplicate terminal number #%d\n", + dev->dev.of_node->full_name, termno); + return -ENXIO; + } + + pr_info("hvc%d: %s protocol on %s%s\n", termno, + proto == HV_PROTOCOL_RAW ? "raw" : "hvsi", + dev->dev.of_node->full_name, + boot ? " (boot console)" : ""); + + /* We don't do IRQ yet */ + hp = hvc_alloc(termno, 0, ops, MAX_VIO_PUT_CHARS); + if (IS_ERR(hp)) + return PTR_ERR(hp); + dev_set_drvdata(&dev->dev, hp); + + return 0; +} + +static int __devexit hvc_opal_remove(struct platform_device *dev) +{ + struct hvc_struct *hp = dev_get_drvdata(&dev->dev); + int rc, termno; + + termno = hp->vtermno; + rc = hvc_remove(hp); + if (rc == 0) { + if (hvc_opal_privs[termno] != &hvc_opal_boot_priv) + kfree(hvc_opal_privs[termno]); + hvc_opal_privs[termno] = NULL; + } + return rc; +} + +static struct platform_driver hvc_opal_driver = { + .probe = hvc_opal_probe, + .remove = __devexit_p(hvc_opal_remove), + .driver = { + .name = hvc_opal_name, + .owner = THIS_MODULE, + .of_match_table = hvc_opal_match, + } +}; + +static int __init hvc_opal_init(void) +{ + if (!firmware_has_feature(FW_FEATURE_OPAL)) + return -ENODEV; + + /* Register as a vio device to receive callbacks */ + return platform_driver_register(&hvc_opal_driver); +} +module_init(hvc_opal_init); + +static void __exit hvc_opal_exit(void) +{ + platform_driver_unregister(&hvc_opal_driver); +} +module_exit(hvc_opal_exit); + +static void udbg_opal_putc(char c) +{ + unsigned int termno = hvc_opal_boot_termno; + int count = -1; + + if (c == '\n') + udbg_opal_putc('\r'); + + do { + switch(hvc_opal_boot_priv.proto) { + case HV_PROTOCOL_RAW: + count = opal_put_chars(termno, &c, 1); + break; + case HV_PROTOCOL_HVSI: + count = hvc_opal_hvsi_put_chars(termno, &c, 1); + break; + } + } while(count == 0 || count == -EAGAIN); +} + +static int udbg_opal_getc_poll(void) +{ + unsigned int termno = hvc_opal_boot_termno; + int rc = 0; + char c; + + switch(hvc_opal_boot_priv.proto) { + case HV_PROTOCOL_RAW: + rc = opal_get_chars(termno, &c, 1); + break; + case HV_PROTOCOL_HVSI: + rc = hvc_opal_hvsi_get_chars(termno, &c, 1); + break; + } + if (!rc) + return -1; + return c; +} + +static int udbg_opal_getc(void) +{ + int ch; + for (;;) { + ch = udbg_opal_getc_poll(); + if (ch == -1) { + /* This shouldn't be needed...but... */ + volatile unsigned long delay; + for (delay=0; delay < 2000000; delay++) + ; + } else { + return ch; + } + } +} + +static void udbg_init_opal_common(void) +{ + udbg_putc = udbg_opal_putc; + udbg_getc = udbg_opal_getc; + udbg_getc_poll = udbg_opal_getc_poll; + tb_ticks_per_usec = 0x200; /* Make udelay not suck */ +} + +void __init hvc_opal_init_early(void) +{ + struct device_node *stdout_node = NULL; + const u32 *termno; + const char *name = NULL; + const struct hv_ops *ops; + u32 index; + + /* find the boot console from /chosen/stdout */ + if (of_chosen) + name = of_get_property(of_chosen, "linux,stdout-path", NULL); + if (name) { + stdout_node = of_find_node_by_path(name); + if (!stdout_node) { + pr_err("hvc_opal: Failed to locate default console!\n"); + return; + } + } else { + struct device_node *opal, *np; + + /* Current OPAL takeover doesn't provide the stdout + * path, so we hard wire it + */ + opal = of_find_node_by_path("/ibm,opal/consoles"); + if (opal) + pr_devel("hvc_opal: Found consoles in new location\n"); + if (!opal) { + opal = of_find_node_by_path("/ibm,opal"); + if (opal) + pr_devel("hvc_opal: " + "Found consoles in old location\n"); + } + if (!opal) + return; + for_each_child_of_node(opal, np) { + if (!strcmp(np->name, "serial")) { + stdout_node = np; + break; + } + } + of_node_put(opal); + } + if (!stdout_node) + return; + termno = of_get_property(stdout_node, "reg", NULL); + index = termno ? *termno : 0; + if (index >= MAX_NR_HVC_CONSOLES) + return; + hvc_opal_privs[index] = &hvc_opal_boot_priv; + + /* Check the protocol */ + if (of_device_is_compatible(stdout_node, "ibm,opal-console-raw")) { + hvc_opal_boot_priv.proto = HV_PROTOCOL_RAW; + ops = &hvc_opal_raw_ops; + pr_devel("hvc_opal: Found RAW console\n"); + } + else if (of_device_is_compatible(stdout_node,"ibm,opal-console-hvsi")) { + hvc_opal_boot_priv.proto = HV_PROTOCOL_HVSI; + ops = &hvc_opal_hvsi_ops; + hvsilib_init(&hvc_opal_boot_priv.hvsi, opal_get_chars, + opal_put_chars, index, 1); + /* HVSI, perform the handshake now */ + hvsilib_establish(&hvc_opal_boot_priv.hvsi); + pr_devel("hvc_opal: Found HVSI console\n"); + } else + goto out; + hvc_opal_boot_termno = index; + udbg_init_opal_common(); + add_preferred_console("hvc", index, NULL); + hvc_instantiate(index, index, ops); +out: + of_node_put(stdout_node); +} + +#ifdef CONFIG_PPC_EARLY_DEBUG_OPAL_RAW +void __init udbg_init_debug_opal(void) +{ + u32 index = CONFIG_PPC_EARLY_DEBUG_OPAL_VTERMNO; + hvc_opal_privs[index] = &hvc_opal_boot_priv; + hvc_opal_boot_priv.proto = HV_PROTOCOL_RAW; + hvc_opal_boot_termno = index; + udbg_init_opal_common(); +} +#endif /* CONFIG_PPC_EARLY_DEBUG_OPAL_RAW */ + +#ifdef CONFIG_PPC_EARLY_DEBUG_OPAL_HVSI +void __init udbg_init_debug_opal_hvsi(void) +{ + u32 index = CONFIG_PPC_EARLY_DEBUG_OPAL_VTERMNO; + hvc_opal_privs[index] = &hvc_opal_boot_priv; + hvc_opal_boot_termno = index; + udbg_init_opal_common(); + hvsilib_init(&hvc_opal_boot_priv.hvsi, opal_get_chars, opal_put_chars, + index, 1); + hvsilib_establish(&hvc_opal_boot_priv.hvsi); +} +#endif /* CONFIG_PPC_EARLY_DEBUG_OPAL_HVSI */ diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c index bd9b09827b24..6f4dd83d8695 100644 --- a/drivers/tty/hvc/hvsi_lib.c +++ b/drivers/tty/hvc/hvsi_lib.c @@ -183,7 +183,7 @@ int hvsilib_get_chars(struct hvsi_priv *pv, char *buf, int count) unsigned int tries, read = 0; if (WARN_ON(!pv)) - return 0; + return -ENXIO; /* If we aren't open, don't do anything in order to avoid races * with connection establishment. The hvc core will call this @@ -234,7 +234,7 @@ int hvsilib_put_chars(struct hvsi_priv *pv, const char *buf, int count) int rc, adjcount = min(count, HVSI_MAX_OUTGOING_DATA); if (WARN_ON(!pv)) - return 0; + return -ENODEV; dp.hdr.type = VS_DATA_PACKET_HEADER; dp.hdr.len = adjcount + sizeof(struct hvsi_header); -- cgit v1.2.3 From 463894705e4089d0ff69e7d877312d496ac70e5b Mon Sep 17 00:00:00 2001 From: Barry Song Date: Thu, 15 Sep 2011 03:06:30 -0700 Subject: dmaengine: delete redundant chan_id and chancnt initialization in dma drivers dma_async_device_register will re-init chan_id and chancnt, so whatever chan_id and chancnt are set in drivers, they will be re-written by dma_async_device_register. Cc: Nicolas Ferre Cc: Viresh Kumar Cc: Vinod Koul Cc: Piotr Ziecik Cc: Yong Wang Cc: Jaswinder Singh Cc: Pelagicore AB Signed-off-by: Barry Song Acked-by: Viresh Kumar Signed-off-by: Vinod Koul --- drivers/dma/at_hdmac.c | 5 ++--- drivers/dma/dw_dmac.c | 5 ++--- drivers/dma/intel_mid_dma.c | 2 -- drivers/dma/mpc512x_dma.c | 1 - drivers/dma/pch_dma.c | 2 -- drivers/dma/pl330.c | 2 -- drivers/dma/timb_dma.c | 3 +-- 7 files changed, 5 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 3b99dc62874b..fcfa0a8b5c59 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -1268,12 +1268,11 @@ static int __init at_dma_probe(struct platform_device *pdev) /* initialize channels related values */ INIT_LIST_HEAD(&atdma->dma_common.channels); - for (i = 0; i < pdata->nr_channels; i++, atdma->dma_common.chancnt++) { + for (i = 0; i < pdata->nr_channels; i++) { struct at_dma_chan *atchan = &atdma->chan[i]; atchan->chan_common.device = &atdma->dma_common; atchan->chan_common.cookie = atchan->completed_cookie = 1; - atchan->chan_common.chan_id = i; list_add_tail(&atchan->chan_common.device_node, &atdma->dma_common.channels); @@ -1314,7 +1313,7 @@ static int __init at_dma_probe(struct platform_device *pdev) dev_info(&pdev->dev, "Atmel AHB DMA Controller ( %s%s), %d channels\n", dma_has_cap(DMA_MEMCPY, atdma->dma_common.cap_mask) ? "cpy " : "", dma_has_cap(DMA_SLAVE, atdma->dma_common.cap_mask) ? "slave " : "", - atdma->dma_common.chancnt); + pdata->nr_channels); dma_async_device_register(&atdma->dma_common); diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index 4d180ca9a1d8..9bfd6d360718 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -1407,12 +1407,11 @@ static int __init dw_probe(struct platform_device *pdev) dw->all_chan_mask = (1 << pdata->nr_channels) - 1; INIT_LIST_HEAD(&dw->dma.channels); - for (i = 0; i < pdata->nr_channels; i++, dw->dma.chancnt++) { + for (i = 0; i < pdata->nr_channels; i++) { struct dw_dma_chan *dwc = &dw->chan[i]; dwc->chan.device = &dw->dma; dwc->chan.cookie = dwc->completed = 1; - dwc->chan.chan_id = i; if (pdata->chan_allocation_order == CHAN_ALLOCATION_ASCENDING) list_add_tail(&dwc->chan.device_node, &dw->dma.channels); @@ -1468,7 +1467,7 @@ static int __init dw_probe(struct platform_device *pdev) dma_writel(dw, CFG, DW_CFG_DMA_EN); printk(KERN_INFO "%s: DesignWare DMA Controller, %d channels\n", - dev_name(&pdev->dev), dw->dma.chancnt); + dev_name(&pdev->dev), pdata->nr_channels); dma_async_device_register(&dw->dma); diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c index 8a3fdd87db97..cf74a664c5e0 100644 --- a/drivers/dma/intel_mid_dma.c +++ b/drivers/dma/intel_mid_dma.c @@ -1114,7 +1114,6 @@ static int mid_setup_dma(struct pci_dev *pdev) midch->chan.device = &dma->common; midch->chan.cookie = 1; - midch->chan.chan_id = i; midch->ch_id = dma->chan_base + i; pr_debug("MDMA:Init CH %d, ID %d\n", i, midch->ch_id); @@ -1150,7 +1149,6 @@ static int mid_setup_dma(struct pci_dev *pdev) dma_cap_set(DMA_SLAVE, dma->common.cap_mask); dma_cap_set(DMA_PRIVATE, dma->common.cap_mask); dma->common.dev = &pdev->dev; - dma->common.chancnt = dma->max_chan; dma->common.device_alloc_chan_resources = intel_mid_dma_alloc_chan_resources; diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c index b9bae94f2015..8ba4edc6185e 100644 --- a/drivers/dma/mpc512x_dma.c +++ b/drivers/dma/mpc512x_dma.c @@ -741,7 +741,6 @@ static int __devinit mpc_dma_probe(struct platform_device *op) mchan = &mdma->channels[i]; mchan->chan.device = dma; - mchan->chan.chan_id = i; mchan->chan.cookie = 1; mchan->completed_cookie = mchan->chan.cookie; diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index 1ac8d4b580b7..5b65362024fd 100644 --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -926,7 +926,6 @@ static int __devinit pch_dma_probe(struct pci_dev *pdev, } pd->dma.dev = &pdev->dev; - pd->dma.chancnt = nr_channels; INIT_LIST_HEAD(&pd->dma.channels); @@ -935,7 +934,6 @@ static int __devinit pch_dma_probe(struct pci_dev *pdev, pd_chan->chan.device = &pd->dma; pd_chan->chan.cookie = 1; - pd_chan->chan.chan_id = i; pd_chan->membase = ®s->desc[i]; diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 00eee59e8b33..7f86e7df7da1 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -747,11 +747,9 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) spin_lock_init(&pch->lock); pch->pl330_chid = NULL; pch->chan.device = pd; - pch->chan.chan_id = i; pch->dmac = pdmac; /* Add the channel to the DMAC list */ - pd->chancnt++; list_add_tail(&pch->chan.device_node, &pd->channels); } diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c index f69f90a61873..6dbdf451128e 100644 --- a/drivers/dma/timb_dma.c +++ b/drivers/dma/timb_dma.c @@ -753,7 +753,7 @@ static int __devinit td_probe(struct platform_device *pdev) INIT_LIST_HEAD(&td->dma.channels); - for (i = 0; i < pdata->nr_channels; i++, td->dma.chancnt++) { + for (i = 0; i < pdata->nr_channels; i++) { struct timb_dma_chan *td_chan = &td->channels[i]; struct timb_dma_platform_data_channel *pchan = pdata->channels + i; @@ -767,7 +767,6 @@ static int __devinit td_probe(struct platform_device *pdev) td_chan->chan.device = &td->dma; td_chan->chan.cookie = 1; - td_chan->chan.chan_id = i; spin_lock_init(&td_chan->lock); INIT_LIST_HEAD(&td_chan->active_list); INIT_LIST_HEAD(&td_chan->queue); -- cgit v1.2.3 From 536137bc9ff1738a7bee9b31047a7cd56860180e Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Fri, 26 Aug 2011 11:03:03 +0900 Subject: gpio/s3c24xx: move gpio driver into drivers/gpio/ Cc: Ben Dooks Acked-by: Grant Likely Signed-off-by: Kukjin Kim --- drivers/gpio/Kconfig | 4 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-s3c24xx.c | 283 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 288 insertions(+) create mode 100644 drivers/gpio/gpio-s3c24xx.c (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index d539efd96d4b..5654e1b082af 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -135,6 +135,10 @@ config GPIO_PLAT_SAMSUNG def_bool y depends on SAMSUNG_GPIOLIB_4BIT +config GPIO_S3C24XX + def_bool y + depends on PLAT_S3C24XX + config GPIO_S5PC100 def_bool y depends on CPU_S5PC100 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 9588948c96f0..c7f1c00986c9 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -40,6 +40,7 @@ obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o +obj-$(CONFIG_GPIO_S3C24XX) += gpio-s3c24xx.o obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o diff --git a/drivers/gpio/gpio-s3c24xx.c b/drivers/gpio/gpio-s3c24xx.c new file mode 100644 index 000000000000..ff6103130fe8 --- /dev/null +++ b/drivers/gpio/gpio-s3c24xx.c @@ -0,0 +1,283 @@ +/* + * Copyright (c) 2008-2010 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks + * + * S3C24XX GPIOlib support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include + +static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) +{ + return -EINVAL; +} + +static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long flags; + unsigned long dat; + unsigned long con; + + local_irq_save(flags); + + con = __raw_readl(base + 0x00); + dat = __raw_readl(base + 0x04); + + dat &= ~(1 << offset); + if (value) + dat |= 1 << offset; + + __raw_writel(dat, base + 0x04); + + con &= ~(1 << offset); + + __raw_writel(con, base + 0x00); + __raw_writel(dat, base + 0x04); + + local_irq_restore(flags); + return 0; +} + +static int s3c24xx_gpiolib_bankf_toirq(struct gpio_chip *chip, unsigned offset) +{ + if (offset < 4) + return IRQ_EINT0 + offset; + + if (offset < 8) + return IRQ_EINT4 + offset - 4; + + return -EINVAL; +} + +static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = { + .set_config = s3c_gpio_setcfg_s3c24xx_a, + .get_config = s3c_gpio_getcfg_s3c24xx_a, +}; + +struct s3c_gpio_cfg s3c24xx_gpiocfg_default = { + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, +}; + +struct s3c_gpio_chip s3c24xx_gpios[] = { + [0] = { + .base = S3C2410_GPACON, + .pm = __gpio_pm(&s3c_gpio_pm_1bit), + .config = &s3c24xx_gpiocfg_banka, + .chip = { + .base = S3C2410_GPA(0), + .owner = THIS_MODULE, + .label = "GPIOA", + .ngpio = 24, + .direction_input = s3c24xx_gpiolib_banka_input, + .direction_output = s3c24xx_gpiolib_banka_output, + }, + }, + [1] = { + .base = S3C2410_GPBCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPB(0), + .owner = THIS_MODULE, + .label = "GPIOB", + .ngpio = 16, + }, + }, + [2] = { + .base = S3C2410_GPCCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPC(0), + .owner = THIS_MODULE, + .label = "GPIOC", + .ngpio = 16, + }, + }, + [3] = { + .base = S3C2410_GPDCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPD(0), + .owner = THIS_MODULE, + .label = "GPIOD", + .ngpio = 16, + }, + }, + [4] = { + .base = S3C2410_GPECON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPE(0), + .label = "GPIOE", + .owner = THIS_MODULE, + .ngpio = 16, + }, + }, + [5] = { + .base = S3C2410_GPFCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPF(0), + .owner = THIS_MODULE, + .label = "GPIOF", + .ngpio = 8, + .to_irq = s3c24xx_gpiolib_bankf_toirq, + }, + }, + [6] = { + .base = S3C2410_GPGCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .irq_base = IRQ_EINT8, + .chip = { + .base = S3C2410_GPG(0), + .owner = THIS_MODULE, + .label = "GPIOG", + .ngpio = 16, + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = S3C2410_GPHCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPH(0), + .owner = THIS_MODULE, + .label = "GPIOH", + .ngpio = 11, + }, + }, + /* GPIOS for the S3C2443 and later devices. */ + { + .base = S3C2440_GPJCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPJ(0), + .owner = THIS_MODULE, + .label = "GPIOJ", + .ngpio = 16, + }, + }, { + .base = S3C2443_GPKCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPK(0), + .owner = THIS_MODULE, + .label = "GPIOK", + .ngpio = 16, + }, + }, { + .base = S3C2443_GPLCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPL(0), + .owner = THIS_MODULE, + .label = "GPIOL", + .ngpio = 15, + }, + }, { + .base = S3C2443_GPMCON, + .pm = __gpio_pm(&s3c_gpio_pm_2bit), + .chip = { + .base = S3C2410_GPM(0), + .owner = THIS_MODULE, + .label = "GPIOM", + .ngpio = 2, + }, + }, +}; + +static __init int s3c24xx_gpiolib_init(void) +{ + struct s3c_gpio_chip *chip = s3c24xx_gpios; + int gpn; + + for (gpn = 0; gpn < ARRAY_SIZE(s3c24xx_gpios); gpn++, chip++) { + if (!chip->config) + chip->config = &s3c24xx_gpiocfg_default; + + s3c_gpiolib_add(chip); + } + + return 0; +} +core_initcall(s3c24xx_gpiolib_init); + +/* gpiolib wrappers until these are totally eliminated */ + +void s3c2410_gpio_pullup(unsigned int pin, unsigned int to) +{ + int ret; + + WARN_ON(to); /* should be none of these left */ + + if (!to) { + /* if pull is enabled, try first with up, and if that + * fails, try using down */ + + ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP); + if (ret) + s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN); + } else { + s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE); + } +} +EXPORT_SYMBOL(s3c2410_gpio_pullup); + +void s3c2410_gpio_setpin(unsigned int pin, unsigned int to) +{ + /* do this via gpiolib until all users removed */ + + gpio_request(pin, "temporary"); + gpio_set_value(pin, to); + gpio_free(pin); +} +EXPORT_SYMBOL(s3c2410_gpio_setpin); + +unsigned int s3c2410_gpio_getpin(unsigned int pin) +{ + struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin); + unsigned long offs = pin - chip->chip.base; + + return __raw_readl(chip->base + 0x04) & (1<< offs); +} +EXPORT_SYMBOL(s3c2410_gpio_getpin); + +unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change) +{ + unsigned long flags; + unsigned long misccr; + + local_irq_save(flags); + misccr = __raw_readl(S3C24XX_MISCCR); + misccr &= ~clear; + misccr ^= change; + __raw_writel(misccr, S3C24XX_MISCCR); + local_irq_restore(flags); + + return misccr; +} +EXPORT_SYMBOL(s3c2410_modify_misccr); -- cgit v1.2.3 From ec080059c1ce7bfdc8453bf4f3328ac0315a66a1 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Fri, 26 Aug 2011 11:06:25 +0900 Subject: gpio/s3c64xx: move gpio driver into drivers/gpio/ Cc: Ben Dooks Acked-by: Grant Likely Signed-off-by: Kukjin Kim --- drivers/gpio/Kconfig | 4 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-s3c64xx.c | 289 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 294 insertions(+) create mode 100644 drivers/gpio/gpio-s3c64xx.c (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 5654e1b082af..6368730a2e58 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -139,6 +139,10 @@ config GPIO_S3C24XX def_bool y depends on PLAT_S3C24XX +config GPIO_S3C64XX + def_bool y + depends on ARCH_S3C64XX + config GPIO_S5PC100 def_bool y depends on CPU_S5PC100 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index c7f1c00986c9..8c1fb23285cb 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o obj-$(CONFIG_GPIO_S3C24XX) += gpio-s3c24xx.o +obj-$(CONFIG_GPIO_S3C64XX) += gpio-s3c64xx.o obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o diff --git a/drivers/gpio/gpio-s3c64xx.c b/drivers/gpio/gpio-s3c64xx.c new file mode 100644 index 000000000000..b4f1c8204f03 --- /dev/null +++ b/drivers/gpio/gpio-s3c64xx.c @@ -0,0 +1,289 @@ +/* + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks + * http://armlinux.simtec.co.uk/ + * + * S3C64XX - GPIOlib support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include + +#include + +#include +#include +#include +#include + +/* GPIO bank summary: + * + * Bank GPIOs Style SlpCon ExtInt Group + * A 8 4Bit Yes 1 + * B 7 4Bit Yes 1 + * C 8 4Bit Yes 2 + * D 5 4Bit Yes 3 + * E 5 4Bit Yes None + * F 16 2Bit Yes 4 [1] + * G 7 4Bit Yes 5 + * H 10 4Bit[2] Yes 6 + * I 16 2Bit Yes None + * J 12 2Bit Yes None + * K 16 4Bit[2] No None + * L 15 4Bit[2] No None + * M 6 4Bit No IRQ_EINT + * N 16 2Bit No IRQ_EINT + * O 16 2Bit Yes 7 + * P 15 2Bit Yes 8 + * Q 9 2Bit Yes 9 + * + * [1] BANKF pins 14,15 do not form part of the external interrupt sources + * [2] BANK has two control registers, GPxCON0 and GPxCON1 + */ + +static struct s3c_gpio_cfg gpio_4bit_cfg_noint = { + .set_config = s3c_gpio_setcfg_s3c64xx_4bit, + .get_config = s3c_gpio_getcfg_s3c64xx_4bit, + .set_pull = s3c_gpio_setpull_updown, + .get_pull = s3c_gpio_getpull_updown, +}; + +static struct s3c_gpio_cfg gpio_4bit_cfg_eint0111 = { + .cfg_eint = 7, + .set_config = s3c_gpio_setcfg_s3c64xx_4bit, + .get_config = s3c_gpio_getcfg_s3c64xx_4bit, + .set_pull = s3c_gpio_setpull_updown, + .get_pull = s3c_gpio_getpull_updown, +}; + +static struct s3c_gpio_cfg gpio_4bit_cfg_eint0011 = { + .cfg_eint = 3, + .get_config = s3c_gpio_getcfg_s3c64xx_4bit, + .set_config = s3c_gpio_setcfg_s3c64xx_4bit, + .set_pull = s3c_gpio_setpull_updown, + .get_pull = s3c_gpio_getpull_updown, +}; + +static int s3c64xx_gpio2int_gpm(struct gpio_chip *chip, unsigned pin) +{ + return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO; +} + +static struct s3c_gpio_chip gpio_4bit[] = { + { + .base = S3C64XX_GPA_BASE, + .config = &gpio_4bit_cfg_eint0111, + .chip = { + .base = S3C64XX_GPA(0), + .ngpio = S3C64XX_GPIO_A_NR, + .label = "GPA", + }, + }, { + .base = S3C64XX_GPB_BASE, + .config = &gpio_4bit_cfg_eint0111, + .chip = { + .base = S3C64XX_GPB(0), + .ngpio = S3C64XX_GPIO_B_NR, + .label = "GPB", + }, + }, { + .base = S3C64XX_GPC_BASE, + .config = &gpio_4bit_cfg_eint0111, + .chip = { + .base = S3C64XX_GPC(0), + .ngpio = S3C64XX_GPIO_C_NR, + .label = "GPC", + }, + }, { + .base = S3C64XX_GPD_BASE, + .config = &gpio_4bit_cfg_eint0111, + .chip = { + .base = S3C64XX_GPD(0), + .ngpio = S3C64XX_GPIO_D_NR, + .label = "GPD", + }, + }, { + .base = S3C64XX_GPE_BASE, + .config = &gpio_4bit_cfg_noint, + .chip = { + .base = S3C64XX_GPE(0), + .ngpio = S3C64XX_GPIO_E_NR, + .label = "GPE", + }, + }, { + .base = S3C64XX_GPG_BASE, + .config = &gpio_4bit_cfg_eint0111, + .chip = { + .base = S3C64XX_GPG(0), + .ngpio = S3C64XX_GPIO_G_NR, + .label = "GPG", + }, + }, { + .base = S3C64XX_GPM_BASE, + .config = &gpio_4bit_cfg_eint0011, + .chip = { + .base = S3C64XX_GPM(0), + .ngpio = S3C64XX_GPIO_M_NR, + .label = "GPM", + .to_irq = s3c64xx_gpio2int_gpm, + }, + }, +}; + +static int s3c64xx_gpio2int_gpl(struct gpio_chip *chip, unsigned pin) +{ + return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO; +} + +static struct s3c_gpio_chip gpio_4bit2[] = { + { + .base = S3C64XX_GPH_BASE + 0x4, + .config = &gpio_4bit_cfg_eint0111, + .chip = { + .base = S3C64XX_GPH(0), + .ngpio = S3C64XX_GPIO_H_NR, + .label = "GPH", + }, + }, { + .base = S3C64XX_GPK_BASE + 0x4, + .config = &gpio_4bit_cfg_noint, + .chip = { + .base = S3C64XX_GPK(0), + .ngpio = S3C64XX_GPIO_K_NR, + .label = "GPK", + }, + }, { + .base = S3C64XX_GPL_BASE + 0x4, + .config = &gpio_4bit_cfg_eint0011, + .chip = { + .base = S3C64XX_GPL(0), + .ngpio = S3C64XX_GPIO_L_NR, + .label = "GPL", + .to_irq = s3c64xx_gpio2int_gpl, + }, + }, +}; + +static struct s3c_gpio_cfg gpio_2bit_cfg_noint = { + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, + .set_pull = s3c_gpio_setpull_updown, + .get_pull = s3c_gpio_getpull_updown, +}; + +static struct s3c_gpio_cfg gpio_2bit_cfg_eint10 = { + .cfg_eint = 2, + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, + .set_pull = s3c_gpio_setpull_updown, + .get_pull = s3c_gpio_getpull_updown, +}; + +static struct s3c_gpio_cfg gpio_2bit_cfg_eint11 = { + .cfg_eint = 3, + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, + .set_pull = s3c_gpio_setpull_updown, + .get_pull = s3c_gpio_getpull_updown, +}; + +static struct s3c_gpio_chip gpio_2bit[] = { + { + .base = S3C64XX_GPF_BASE, + .config = &gpio_2bit_cfg_eint11, + .chip = { + .base = S3C64XX_GPF(0), + .ngpio = S3C64XX_GPIO_F_NR, + .label = "GPF", + }, + }, { + .base = S3C64XX_GPI_BASE, + .config = &gpio_2bit_cfg_noint, + .chip = { + .base = S3C64XX_GPI(0), + .ngpio = S3C64XX_GPIO_I_NR, + .label = "GPI", + }, + }, { + .base = S3C64XX_GPJ_BASE, + .config = &gpio_2bit_cfg_noint, + .chip = { + .base = S3C64XX_GPJ(0), + .ngpio = S3C64XX_GPIO_J_NR, + .label = "GPJ", + }, + }, { + .base = S3C64XX_GPN_BASE, + .irq_base = IRQ_EINT(0), + .config = &gpio_2bit_cfg_eint10, + .chip = { + .base = S3C64XX_GPN(0), + .ngpio = S3C64XX_GPIO_N_NR, + .label = "GPN", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = S3C64XX_GPO_BASE, + .config = &gpio_2bit_cfg_eint11, + .chip = { + .base = S3C64XX_GPO(0), + .ngpio = S3C64XX_GPIO_O_NR, + .label = "GPO", + }, + }, { + .base = S3C64XX_GPP_BASE, + .config = &gpio_2bit_cfg_eint11, + .chip = { + .base = S3C64XX_GPP(0), + .ngpio = S3C64XX_GPIO_P_NR, + .label = "GPP", + }, + }, { + .base = S3C64XX_GPQ_BASE, + .config = &gpio_2bit_cfg_eint11, + .chip = { + .base = S3C64XX_GPQ(0), + .ngpio = S3C64XX_GPIO_Q_NR, + .label = "GPQ", + }, + }, +}; + +static __init void s3c64xx_gpiolib_add_2bit(struct s3c_gpio_chip *chip) +{ + chip->pm = __gpio_pm(&s3c_gpio_pm_2bit); +} + +static __init void s3c64xx_gpiolib_add(struct s3c_gpio_chip *chips, + int nr_chips, + void (*fn)(struct s3c_gpio_chip *)) +{ + for (; nr_chips > 0; nr_chips--, chips++) { + if (fn) + (fn)(chips); + s3c_gpiolib_add(chips); + } +} + +static __init int s3c64xx_gpiolib_init(void) +{ + s3c64xx_gpiolib_add(gpio_4bit, ARRAY_SIZE(gpio_4bit), + samsung_gpiolib_add_4bit); + + s3c64xx_gpiolib_add(gpio_4bit2, ARRAY_SIZE(gpio_4bit2), + samsung_gpiolib_add_4bit2); + + s3c64xx_gpiolib_add(gpio_2bit, ARRAY_SIZE(gpio_2bit), + s3c64xx_gpiolib_add_2bit); + + return 0; +} + +core_initcall(s3c64xx_gpiolib_init); -- cgit v1.2.3 From c4b3fd38dfb677d7a3997527c9cbdc21b81424a3 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Fri, 26 Aug 2011 11:07:26 +0900 Subject: gpio/s5p64x0: move gpio driver into drivers/gpio/ Acked-by: Grant Likely Signed-off-by: Kukjin Kim --- drivers/gpio/Kconfig | 4 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-s5p64x0.c | 510 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 515 insertions(+) create mode 100644 drivers/gpio/gpio-s5p64x0.c (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 6368730a2e58..5eb29bc18a56 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -143,6 +143,10 @@ config GPIO_S3C64XX def_bool y depends on ARCH_S3C64XX +config GPIO_S5P64X0 + def_bool y + depends on ARCH_S5P64X0 + config GPIO_S5PC100 def_bool y depends on CPU_S5PC100 diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 8c1fb23285cb..10f3bbf0eceb 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -42,6 +42,7 @@ obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o obj-$(CONFIG_GPIO_S3C24XX) += gpio-s3c24xx.o obj-$(CONFIG_GPIO_S3C64XX) += gpio-s3c64xx.o +obj-$(CONFIG_GPIO_S5P64X0) += gpio-s5p64x0.o obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o diff --git a/drivers/gpio/gpio-s5p64x0.c b/drivers/gpio/gpio-s5p64x0.c new file mode 100644 index 000000000000..96e816f5cc95 --- /dev/null +++ b/drivers/gpio/gpio-s5p64x0.c @@ -0,0 +1,510 @@ +/* + * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * S5P64X0 - GPIOlib support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +/* + * S5P6440 GPIO bank summary: + * + * Bank GPIOs Style SlpCon ExtInt Group + * A 6 4Bit Yes 1 + * B 7 4Bit Yes 1 + * C 8 4Bit Yes 2 + * F 2 2Bit Yes 4 [1] + * G 7 4Bit Yes 5 + * H 10 4Bit[2] Yes 6 + * I 16 2Bit Yes None + * J 12 2Bit Yes None + * N 16 2Bit No IRQ_EINT + * P 8 2Bit Yes 8 + * R 15 4Bit[2] Yes 8 + * + * S5P6450 GPIO bank summary: + * + * Bank GPIOs Style SlpCon ExtInt Group + * A 6 4Bit Yes 1 + * B 7 4Bit Yes 1 + * C 8 4Bit Yes 2 + * D 8 4Bit Yes None + * F 2 2Bit Yes None + * G 14 4Bit[2] Yes 5 + * H 10 4Bit[2] Yes 6 + * I 16 2Bit Yes None + * J 12 2Bit Yes None + * K 5 4Bit Yes None + * N 16 2Bit No IRQ_EINT + * P 11 2Bit Yes 8 + * Q 14 2Bit Yes None + * R 15 4Bit[2] Yes None + * S 8 2Bit Yes None + * + * [1] BANKF pins 14,15 do not form part of the external interrupt sources + * [2] BANK has two control registers, GPxCON0 and GPxCON1 + */ + +static int s5p64x0_gpiolib_rbank_4bit2_input(struct gpio_chip *chip, + unsigned int offset) +{ + struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); + void __iomem *base = ourchip->base; + void __iomem *regcon = base; + unsigned long con; + unsigned long flags; + + switch (offset) { + case 6: + offset += 1; + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + regcon -= 4; + break; + default: + offset -= 7; + break; + } + + s3c_gpio_lock(ourchip, flags); + + con = __raw_readl(regcon); + con &= ~(0xf << con_4bit_shift(offset)); + __raw_writel(con, regcon); + + s3c_gpio_unlock(ourchip, flags); + + return 0; +} + +static int s5p64x0_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); + void __iomem *base = ourchip->base; + void __iomem *regcon = base; + unsigned long con; + unsigned long dat; + unsigned long flags; + unsigned con_offset = offset; + + switch (con_offset) { + case 6: + con_offset += 1; + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + regcon -= 4; + break; + default: + con_offset -= 7; + break; + } + + s3c_gpio_lock(ourchip, flags); + + con = __raw_readl(regcon); + con &= ~(0xf << con_4bit_shift(con_offset)); + con |= 0x1 << con_4bit_shift(con_offset); + + dat = __raw_readl(base + GPIODAT_OFF); + if (value) + dat |= 1 << offset; + else + dat &= ~(1 << offset); + + __raw_writel(con, regcon); + __raw_writel(dat, base + GPIODAT_OFF); + + s3c_gpio_unlock(ourchip, flags); + + return 0; +} + +int s5p64x0_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip, + unsigned int off, unsigned int cfg) +{ + void __iomem *reg = chip->base; + unsigned int shift; + u32 con; + + switch (off) { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + shift = (off & 7) * 4; + reg -= 4; + break; + case 6: + shift = ((off + 1) & 7) * 4; + reg -= 4; + default: + shift = ((off + 1) & 7) * 4; + break; + } + + if (s3c_gpio_is_cfg_special(cfg)) { + cfg &= 0xf; + cfg <<= shift; + } + + con = __raw_readl(reg); + con &= ~(0xf << shift); + con |= cfg; + __raw_writel(con, reg); + + return 0; +} + +static struct s3c_gpio_cfg s5p64x0_gpio_cfgs[] = { + { + .cfg_eint = 0, + }, { + .cfg_eint = 7, + }, { + .cfg_eint = 3, + .set_config = s5p64x0_gpio_setcfg_4bit_rbank, + }, { + .cfg_eint = 0, + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, + }, { + .cfg_eint = 2, + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, + }, { + .cfg_eint = 3, + .set_config = s3c_gpio_setcfg_s3c24xx, + .get_config = s3c_gpio_getcfg_s3c24xx, + }, +}; + +static struct s3c_gpio_chip s5p6440_gpio_4bit[] = { + { + .base = S5P64X0_GPA_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6440_GPA(0), + .ngpio = S5P6440_GPIO_A_NR, + .label = "GPA", + }, + }, { + .base = S5P64X0_GPB_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6440_GPB(0), + .ngpio = S5P6440_GPIO_B_NR, + .label = "GPB", + }, + }, { + .base = S5P64X0_GPC_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6440_GPC(0), + .ngpio = S5P6440_GPIO_C_NR, + .label = "GPC", + }, + }, { + .base = S5P64X0_GPG_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6440_GPG(0), + .ngpio = S5P6440_GPIO_G_NR, + .label = "GPG", + }, + }, +}; + +static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = { + { + .base = S5P64X0_GPH_BASE + 0x4, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6440_GPH(0), + .ngpio = S5P6440_GPIO_H_NR, + .label = "GPH", + }, + }, +}; + +static struct s3c_gpio_chip s5p6440_gpio_rbank_4bit2[] = { + { + .base = S5P64X0_GPR_BASE + 0x4, + .config = &s5p64x0_gpio_cfgs[2], + .chip = { + .base = S5P6440_GPR(0), + .ngpio = S5P6440_GPIO_R_NR, + .label = "GPR", + }, + }, +}; + +static struct s3c_gpio_chip s5p6440_gpio_2bit[] = { + { + .base = S5P64X0_GPF_BASE, + .config = &s5p64x0_gpio_cfgs[5], + .chip = { + .base = S5P6440_GPF(0), + .ngpio = S5P6440_GPIO_F_NR, + .label = "GPF", + }, + }, { + .base = S5P64X0_GPI_BASE, + .config = &s5p64x0_gpio_cfgs[3], + .chip = { + .base = S5P6440_GPI(0), + .ngpio = S5P6440_GPIO_I_NR, + .label = "GPI", + }, + }, { + .base = S5P64X0_GPJ_BASE, + .config = &s5p64x0_gpio_cfgs[3], + .chip = { + .base = S5P6440_GPJ(0), + .ngpio = S5P6440_GPIO_J_NR, + .label = "GPJ", + }, + }, { + .base = S5P64X0_GPN_BASE, + .config = &s5p64x0_gpio_cfgs[4], + .chip = { + .base = S5P6440_GPN(0), + .ngpio = S5P6440_GPIO_N_NR, + .label = "GPN", + }, + }, { + .base = S5P64X0_GPP_BASE, + .config = &s5p64x0_gpio_cfgs[5], + .chip = { + .base = S5P6440_GPP(0), + .ngpio = S5P6440_GPIO_P_NR, + .label = "GPP", + }, + }, +}; + +static struct s3c_gpio_chip s5p6450_gpio_4bit[] = { + { + .base = S5P64X0_GPA_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPA(0), + .ngpio = S5P6450_GPIO_A_NR, + .label = "GPA", + }, + }, { + .base = S5P64X0_GPB_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPB(0), + .ngpio = S5P6450_GPIO_B_NR, + .label = "GPB", + }, + }, { + .base = S5P64X0_GPC_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPC(0), + .ngpio = S5P6450_GPIO_C_NR, + .label = "GPC", + }, + }, { + .base = S5P6450_GPD_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPD(0), + .ngpio = S5P6450_GPIO_D_NR, + .label = "GPD", + }, + }, { + .base = S5P6450_GPK_BASE, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPK(0), + .ngpio = S5P6450_GPIO_K_NR, + .label = "GPK", + }, + }, +}; + +static struct s3c_gpio_chip s5p6450_gpio_4bit2[] = { + { + .base = S5P64X0_GPG_BASE + 0x4, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPG(0), + .ngpio = S5P6450_GPIO_G_NR, + .label = "GPG", + }, + }, { + .base = S5P64X0_GPH_BASE + 0x4, + .config = &s5p64x0_gpio_cfgs[1], + .chip = { + .base = S5P6450_GPH(0), + .ngpio = S5P6450_GPIO_H_NR, + .label = "GPH", + }, + }, +}; + +static struct s3c_gpio_chip s5p6450_gpio_rbank_4bit2[] = { + { + .base = S5P64X0_GPR_BASE + 0x4, + .config = &s5p64x0_gpio_cfgs[2], + .chip = { + .base = S5P6450_GPR(0), + .ngpio = S5P6450_GPIO_R_NR, + .label = "GPR", + }, + }, +}; + +static struct s3c_gpio_chip s5p6450_gpio_2bit[] = { + { + .base = S5P64X0_GPF_BASE, + .config = &s5p64x0_gpio_cfgs[5], + .chip = { + .base = S5P6450_GPF(0), + .ngpio = S5P6450_GPIO_F_NR, + .label = "GPF", + }, + }, { + .base = S5P64X0_GPI_BASE, + .config = &s5p64x0_gpio_cfgs[3], + .chip = { + .base = S5P6450_GPI(0), + .ngpio = S5P6450_GPIO_I_NR, + .label = "GPI", + }, + }, { + .base = S5P64X0_GPJ_BASE, + .config = &s5p64x0_gpio_cfgs[3], + .chip = { + .base = S5P6450_GPJ(0), + .ngpio = S5P6450_GPIO_J_NR, + .label = "GPJ", + }, + }, { + .base = S5P64X0_GPN_BASE, + .config = &s5p64x0_gpio_cfgs[4], + .chip = { + .base = S5P6450_GPN(0), + .ngpio = S5P6450_GPIO_N_NR, + .label = "GPN", + }, + }, { + .base = S5P64X0_GPP_BASE, + .config = &s5p64x0_gpio_cfgs[5], + .chip = { + .base = S5P6450_GPP(0), + .ngpio = S5P6450_GPIO_P_NR, + .label = "GPP", + }, + }, { + .base = S5P6450_GPQ_BASE, + .config = &s5p64x0_gpio_cfgs[4], + .chip = { + .base = S5P6450_GPQ(0), + .ngpio = S5P6450_GPIO_Q_NR, + .label = "GPQ", + }, + }, { + .base = S5P6450_GPS_BASE, + .config = &s5p64x0_gpio_cfgs[5], + .chip = { + .base = S5P6450_GPS(0), + .ngpio = S5P6450_GPIO_S_NR, + .label = "GPS", + }, + }, +}; + +void __init s5p64x0_gpiolib_set_cfg(struct s3c_gpio_cfg *chipcfg, int nr_chips) +{ + for (; nr_chips > 0; nr_chips--, chipcfg++) { + if (!chipcfg->set_config) + chipcfg->set_config = s3c_gpio_setcfg_s3c64xx_4bit; + if (!chipcfg->get_config) + chipcfg->get_config = s3c_gpio_getcfg_s3c64xx_4bit; + if (!chipcfg->set_pull) + chipcfg->set_pull = s3c_gpio_setpull_updown; + if (!chipcfg->get_pull) + chipcfg->get_pull = s3c_gpio_getpull_updown; + } +} + +static void __init s5p64x0_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip, + int nr_chips) +{ + for (; nr_chips > 0; nr_chips--, chip++) { + chip->chip.direction_input = s5p64x0_gpiolib_rbank_4bit2_input; + chip->chip.direction_output = + s5p64x0_gpiolib_rbank_4bit2_output; + s3c_gpiolib_add(chip); + } +} + +static int __init s5p64x0_gpiolib_init(void) +{ + unsigned int chipid; + + chipid = __raw_readl(S5P64X0_SYS_ID); + + s5p64x0_gpiolib_set_cfg(s5p64x0_gpio_cfgs, + ARRAY_SIZE(s5p64x0_gpio_cfgs)); + + if ((chipid & 0xff000) == 0x50000) { + samsung_gpiolib_add_2bit_chips(s5p6450_gpio_2bit, + ARRAY_SIZE(s5p6450_gpio_2bit)); + + samsung_gpiolib_add_4bit_chips(s5p6450_gpio_4bit, + ARRAY_SIZE(s5p6450_gpio_4bit)); + + samsung_gpiolib_add_4bit2_chips(s5p6450_gpio_4bit2, + ARRAY_SIZE(s5p6450_gpio_4bit2)); + + s5p64x0_gpio_add_rbank_4bit2(s5p6450_gpio_rbank_4bit2, + ARRAY_SIZE(s5p6450_gpio_rbank_4bit2)); + } else { + samsung_gpiolib_add_2bit_chips(s5p6440_gpio_2bit, + ARRAY_SIZE(s5p6440_gpio_2bit)); + + samsung_gpiolib_add_4bit_chips(s5p6440_gpio_4bit, + ARRAY_SIZE(s5p6440_gpio_4bit)); + + samsung_gpiolib_add_4bit2_chips(s5p6440_gpio_4bit2, + ARRAY_SIZE(s5p6440_gpio_4bit2)); + + s5p64x0_gpio_add_rbank_4bit2(s5p6440_gpio_rbank_4bit2, + ARRAY_SIZE(s5p6440_gpio_rbank_4bit2)); + } + + return 0; +} +core_initcall(s5p64x0_gpiolib_init); -- cgit v1.2.3 From f8de8f4ce2a83ccf7571ee13d41d02a9040797f9 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 30 Aug 2011 15:08:24 +0800 Subject: dmaengine i.MX DMA/SDMA: add missing include of linux/module.h Add missing include of linux/module.h to fix build error. Signed-off-by: Axel Lin Acked-by: Wolfram Sang Signed-off-by: Vinod Koul --- drivers/dma/imx-dma.c | 1 + drivers/dma/imx-sdma.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c index d99f71c356b5..d746899f36e1 100644 --- a/drivers/dma/imx-dma.c +++ b/drivers/dma/imx-dma.c @@ -14,6 +14,7 @@ * http://www.gnu.org/copyleft/gpl.html */ #include +#include #include #include #include diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index b5cc27dc9a51..eab1fe71259e 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -18,6 +18,7 @@ */ #include +#include #include #include #include -- cgit v1.2.3 From 1b39d5f2cc5c28085bbf48db80bf704ab4dedda9 Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Tue, 30 Aug 2011 20:39:08 +0900 Subject: gpio/samsung: gpio-samsung.c to support Samsung GPIOs This patch adds support for Samsung GPIOs with one gpio driver and removes old GPIO drivers which are drivers/gpio-s3c24xx.c, gpio-s3c64xx.c, gpio-s5p64x0.c, gpio-s5pc100.c, gpio-s5pv210.c, gpio-exynos4.c, gpio-plat-samsung.c, plat-samsung/gpio-config.c and gpio.c to support each Samsung SoCs before. Because the gpio-samsung.c can replace old Samsung GPIO drivers. Basically, the gpio-samsung.c has been made by their merging and removing duplicated definitions. Note: gpio-samsung.c includes some SoC dependent codes and it will be replaced next time. Cc: Ben Dooks Acked-by: Grant Likely [kgene.kim@samsung.com: squash the removing and adding patches] [kgene.kim@samsung.com: fixes bug during to register of gpio_chips] Signed-off-by: Kukjin Kim --- drivers/gpio/Kconfig | 28 - drivers/gpio/Makefile | 10 +- drivers/gpio/gpio-exynos4.c | 385 ------ drivers/gpio/gpio-plat-samsung.c | 205 --- drivers/gpio/gpio-s3c24xx.c | 283 ---- drivers/gpio/gpio-s3c64xx.c | 289 ---- drivers/gpio/gpio-s5p64x0.c | 510 -------- drivers/gpio/gpio-s5pc100.c | 354 ----- drivers/gpio/gpio-s5pv210.c | 287 ---- drivers/gpio/gpio-samsung.c | 2686 ++++++++++++++++++++++++++++++++++++++ 10 files changed, 2687 insertions(+), 2350 deletions(-) delete mode 100644 drivers/gpio/gpio-exynos4.c delete mode 100644 drivers/gpio/gpio-plat-samsung.c delete mode 100644 drivers/gpio/gpio-s3c24xx.c delete mode 100644 drivers/gpio/gpio-s3c64xx.c delete mode 100644 drivers/gpio/gpio-s5p64x0.c delete mode 100644 drivers/gpio/gpio-s5pc100.c delete mode 100644 drivers/gpio/gpio-s5pv210.c create mode 100644 drivers/gpio/gpio-samsung.c (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 5eb29bc18a56..ca44d2cceb02 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -95,10 +95,6 @@ config GPIO_EP93XX depends on ARCH_EP93XX select GPIO_GENERIC -config GPIO_EXYNOS4 - def_bool y - depends on CPU_EXYNOS4210 - config GPIO_MPC5200 def_bool y depends on PPC_MPC52xx @@ -131,30 +127,6 @@ config GPIO_MXS select GPIO_GENERIC select GENERIC_IRQ_CHIP -config GPIO_PLAT_SAMSUNG - def_bool y - depends on SAMSUNG_GPIOLIB_4BIT - -config GPIO_S3C24XX - def_bool y - depends on PLAT_S3C24XX - -config GPIO_S3C64XX - def_bool y - depends on ARCH_S3C64XX - -config GPIO_S5P64X0 - def_bool y - depends on ARCH_S5P64X0 - -config GPIO_S5PC100 - def_bool y - depends on CPU_S5PC100 - -config GPIO_S5PV210 - def_bool y - depends on CPU_S5PV210 - config GPIO_PL061 bool "PrimeCell PL061 GPIO support" depends on ARM_AMBA diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 10f3bbf0eceb..62db458c850d 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -15,7 +15,6 @@ obj-$(CONFIG_GPIO_BT8XX) += gpio-bt8xx.o obj-$(CONFIG_GPIO_CS5535) += gpio-cs5535.o obj-$(CONFIG_GPIO_DA9052) += gpio-da9052.o obj-$(CONFIG_GPIO_EP93XX) += gpio-ep93xx.o -obj-$(CONFIG_GPIO_EXYNOS4) += gpio-exynos4.o obj-$(CONFIG_GPIO_IT8761E) += gpio-it8761e.o obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o obj-$(CONFIG_GPIO_LANGWELL) += gpio-langwell.o @@ -38,14 +37,7 @@ obj-$(CONFIG_GPIO_PCF857X) += gpio-pcf857x.o obj-$(CONFIG_GPIO_PCH) += gpio-pch.o obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o - -obj-$(CONFIG_GPIO_PLAT_SAMSUNG) += gpio-plat-samsung.o -obj-$(CONFIG_GPIO_S3C24XX) += gpio-s3c24xx.o -obj-$(CONFIG_GPIO_S3C64XX) += gpio-s3c64xx.o -obj-$(CONFIG_GPIO_S5P64X0) += gpio-s5p64x0.o -obj-$(CONFIG_GPIO_S5PC100) += gpio-s5pc100.o -obj-$(CONFIG_GPIO_S5PV210) += gpio-s5pv210.o - +obj-$(CONFIG_PLAT_SAMSUNG) += gpio-samsung.o obj-$(CONFIG_GPIO_SCH) += gpio-sch.o obj-$(CONFIG_GPIO_STMPE) += gpio-stmpe.o obj-$(CONFIG_GPIO_SX150X) += gpio-sx150x.o diff --git a/drivers/gpio/gpio-exynos4.c b/drivers/gpio/gpio-exynos4.c deleted file mode 100644 index d24b337cf1ac..000000000000 --- a/drivers/gpio/gpio-exynos4.c +++ /dev/null @@ -1,385 +0,0 @@ -/* - * EXYNOS4 - GPIOlib support - * - * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include -#include -#include -#include - -#include - -#include -#include -#include - -int s3c_gpio_setpull_exynos4(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull) -{ - if (pull == S3C_GPIO_PULL_UP) - pull = 3; - - return s3c_gpio_setpull_updown(chip, off, pull); -} - -s3c_gpio_pull_t s3c_gpio_getpull_exynos4(struct s3c_gpio_chip *chip, - unsigned int off) -{ - s3c_gpio_pull_t pull; - - pull = s3c_gpio_getpull_updown(chip, off); - if (pull == 3) - pull = S3C_GPIO_PULL_UP; - - return pull; -} - -static struct s3c_gpio_cfg gpio_cfg = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_exynos4, - .get_pull = s3c_gpio_getpull_exynos4, -}; - -static struct s3c_gpio_cfg gpio_cfg_noint = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_exynos4, - .get_pull = s3c_gpio_getpull_exynos4, -}; - -/* - * Following are the gpio banks in v310. - * - * The 'config' member when left to NULL, is initialized to the default - * structure gpio_cfg in the init function below. - * - * The 'base' member is also initialized in the init function below. - * Note: The initialization of 'base' member of s3c_gpio_chip structure - * uses the above macro and depends on the banks being listed in order here. - */ -static struct s3c_gpio_chip exynos4_gpio_part1_4bit[] = { - { - .chip = { - .base = EXYNOS4_GPA0(0), - .ngpio = EXYNOS4_GPIO_A0_NR, - .label = "GPA0", - }, - }, { - .chip = { - .base = EXYNOS4_GPA1(0), - .ngpio = EXYNOS4_GPIO_A1_NR, - .label = "GPA1", - }, - }, { - .chip = { - .base = EXYNOS4_GPB(0), - .ngpio = EXYNOS4_GPIO_B_NR, - .label = "GPB", - }, - }, { - .chip = { - .base = EXYNOS4_GPC0(0), - .ngpio = EXYNOS4_GPIO_C0_NR, - .label = "GPC0", - }, - }, { - .chip = { - .base = EXYNOS4_GPC1(0), - .ngpio = EXYNOS4_GPIO_C1_NR, - .label = "GPC1", - }, - }, { - .chip = { - .base = EXYNOS4_GPD0(0), - .ngpio = EXYNOS4_GPIO_D0_NR, - .label = "GPD0", - }, - }, { - .chip = { - .base = EXYNOS4_GPD1(0), - .ngpio = EXYNOS4_GPIO_D1_NR, - .label = "GPD1", - }, - }, { - .chip = { - .base = EXYNOS4_GPE0(0), - .ngpio = EXYNOS4_GPIO_E0_NR, - .label = "GPE0", - }, - }, { - .chip = { - .base = EXYNOS4_GPE1(0), - .ngpio = EXYNOS4_GPIO_E1_NR, - .label = "GPE1", - }, - }, { - .chip = { - .base = EXYNOS4_GPE2(0), - .ngpio = EXYNOS4_GPIO_E2_NR, - .label = "GPE2", - }, - }, { - .chip = { - .base = EXYNOS4_GPE3(0), - .ngpio = EXYNOS4_GPIO_E3_NR, - .label = "GPE3", - }, - }, { - .chip = { - .base = EXYNOS4_GPE4(0), - .ngpio = EXYNOS4_GPIO_E4_NR, - .label = "GPE4", - }, - }, { - .chip = { - .base = EXYNOS4_GPF0(0), - .ngpio = EXYNOS4_GPIO_F0_NR, - .label = "GPF0", - }, - }, { - .chip = { - .base = EXYNOS4_GPF1(0), - .ngpio = EXYNOS4_GPIO_F1_NR, - .label = "GPF1", - }, - }, { - .chip = { - .base = EXYNOS4_GPF2(0), - .ngpio = EXYNOS4_GPIO_F2_NR, - .label = "GPF2", - }, - }, { - .chip = { - .base = EXYNOS4_GPF3(0), - .ngpio = EXYNOS4_GPIO_F3_NR, - .label = "GPF3", - }, - }, -}; - -static struct s3c_gpio_chip exynos4_gpio_part2_4bit[] = { - { - .chip = { - .base = EXYNOS4_GPJ0(0), - .ngpio = EXYNOS4_GPIO_J0_NR, - .label = "GPJ0", - }, - }, { - .chip = { - .base = EXYNOS4_GPJ1(0), - .ngpio = EXYNOS4_GPIO_J1_NR, - .label = "GPJ1", - }, - }, { - .chip = { - .base = EXYNOS4_GPK0(0), - .ngpio = EXYNOS4_GPIO_K0_NR, - .label = "GPK0", - }, - }, { - .chip = { - .base = EXYNOS4_GPK1(0), - .ngpio = EXYNOS4_GPIO_K1_NR, - .label = "GPK1", - }, - }, { - .chip = { - .base = EXYNOS4_GPK2(0), - .ngpio = EXYNOS4_GPIO_K2_NR, - .label = "GPK2", - }, - }, { - .chip = { - .base = EXYNOS4_GPK3(0), - .ngpio = EXYNOS4_GPIO_K3_NR, - .label = "GPK3", - }, - }, { - .chip = { - .base = EXYNOS4_GPL0(0), - .ngpio = EXYNOS4_GPIO_L0_NR, - .label = "GPL0", - }, - }, { - .chip = { - .base = EXYNOS4_GPL1(0), - .ngpio = EXYNOS4_GPIO_L1_NR, - .label = "GPL1", - }, - }, { - .chip = { - .base = EXYNOS4_GPL2(0), - .ngpio = EXYNOS4_GPIO_L2_NR, - .label = "GPL2", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY0(0), - .ngpio = EXYNOS4_GPIO_Y0_NR, - .label = "GPY0", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY1(0), - .ngpio = EXYNOS4_GPIO_Y1_NR, - .label = "GPY1", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY2(0), - .ngpio = EXYNOS4_GPIO_Y2_NR, - .label = "GPY2", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY3(0), - .ngpio = EXYNOS4_GPIO_Y3_NR, - .label = "GPY3", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY4(0), - .ngpio = EXYNOS4_GPIO_Y4_NR, - .label = "GPY4", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY5(0), - .ngpio = EXYNOS4_GPIO_Y5_NR, - .label = "GPY5", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = EXYNOS4_GPY6(0), - .ngpio = EXYNOS4_GPIO_Y6_NR, - .label = "GPY6", - }, - }, { - .base = (S5P_VA_GPIO2 + 0xC00), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(0), - .chip = { - .base = EXYNOS4_GPX0(0), - .ngpio = EXYNOS4_GPIO_X0_NR, - .label = "GPX0", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO2 + 0xC20), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(8), - .chip = { - .base = EXYNOS4_GPX1(0), - .ngpio = EXYNOS4_GPIO_X1_NR, - .label = "GPX1", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO2 + 0xC40), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(16), - .chip = { - .base = EXYNOS4_GPX2(0), - .ngpio = EXYNOS4_GPIO_X2_NR, - .label = "GPX2", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO2 + 0xC60), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(24), - .chip = { - .base = EXYNOS4_GPX3(0), - .ngpio = EXYNOS4_GPIO_X3_NR, - .label = "GPX3", - .to_irq = samsung_gpiolib_to_irq, - }, - }, -}; - -static struct s3c_gpio_chip exynos4_gpio_part3_4bit[] = { - { - .chip = { - .base = EXYNOS4_GPZ(0), - .ngpio = EXYNOS4_GPIO_Z_NR, - .label = "GPZ", - }, - }, -}; - -static __init int exynos4_gpiolib_init(void) -{ - struct s3c_gpio_chip *chip; - int i; - int group = 0; - int nr_chips; - - /* GPIO part 1 */ - - chip = exynos4_gpio_part1_4bit; - nr_chips = ARRAY_SIZE(exynos4_gpio_part1_4bit); - - for (i = 0; i < nr_chips; i++, chip++) { - if (chip->config == NULL) { - chip->config = &gpio_cfg; - /* Assign the GPIO interrupt group */ - chip->group = group++; - } - if (chip->base == NULL) - chip->base = S5P_VA_GPIO1 + (i) * 0x20; - } - - samsung_gpiolib_add_4bit_chips(exynos4_gpio_part1_4bit, nr_chips); - - /* GPIO part 2 */ - - chip = exynos4_gpio_part2_4bit; - nr_chips = ARRAY_SIZE(exynos4_gpio_part2_4bit); - - for (i = 0; i < nr_chips; i++, chip++) { - if (chip->config == NULL) { - chip->config = &gpio_cfg; - /* Assign the GPIO interrupt group */ - chip->group = group++; - } - if (chip->base == NULL) - chip->base = S5P_VA_GPIO2 + (i) * 0x20; - } - - samsung_gpiolib_add_4bit_chips(exynos4_gpio_part2_4bit, nr_chips); - - /* GPIO part 3 */ - - chip = exynos4_gpio_part3_4bit; - nr_chips = ARRAY_SIZE(exynos4_gpio_part3_4bit); - - for (i = 0; i < nr_chips; i++, chip++) { - if (chip->config == NULL) { - chip->config = &gpio_cfg; - /* Assign the GPIO interrupt group */ - chip->group = group++; - } - if (chip->base == NULL) - chip->base = S5P_VA_GPIO3 + (i) * 0x20; - } - - samsung_gpiolib_add_4bit_chips(exynos4_gpio_part3_4bit, nr_chips); - s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS); - s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS); - - return 0; -} -core_initcall(exynos4_gpiolib_init); diff --git a/drivers/gpio/gpio-plat-samsung.c b/drivers/gpio/gpio-plat-samsung.c deleted file mode 100644 index ef67f1952a72..000000000000 --- a/drivers/gpio/gpio-plat-samsung.c +++ /dev/null @@ -1,205 +0,0 @@ -/* - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * Copyright (c) 2009 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * SAMSUNG - GPIOlib support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include - -#ifndef DEBUG_GPIO -#define gpio_dbg(x...) do { } while (0) -#else -#define gpio_dbg(x...) printk(KERN_DEBUG x) -#endif - -/* The samsung_gpiolib_4bit routines are to control the gpio banks where - * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the - * following example: - * - * base + 0x00: Control register, 4 bits per gpio - * gpio n: 4 bits starting at (4*n) - * 0000 = input, 0001 = output, others mean special-function - * base + 0x04: Data register, 1 bit per gpio - * bit n: data bit n - * - * Note, since the data register is one bit per gpio and is at base + 0x4 - * we can use s3c_gpiolib_get and s3c_gpiolib_set to change the state of - * the output. -*/ - -static int samsung_gpiolib_4bit_input(struct gpio_chip *chip, - unsigned int offset) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - unsigned long con; - - con = __raw_readl(base + GPIOCON_OFF); - con &= ~(0xf << con_4bit_shift(offset)); - __raw_writel(con, base + GPIOCON_OFF); - - gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con); - - return 0; -} - -static int samsung_gpiolib_4bit_output(struct gpio_chip *chip, - unsigned int offset, int value) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - unsigned long con; - unsigned long dat; - - con = __raw_readl(base + GPIOCON_OFF); - con &= ~(0xf << con_4bit_shift(offset)); - con |= 0x1 << con_4bit_shift(offset); - - dat = __raw_readl(base + GPIODAT_OFF); - - if (value) - dat |= 1 << offset; - else - dat &= ~(1 << offset); - - __raw_writel(dat, base + GPIODAT_OFF); - __raw_writel(con, base + GPIOCON_OFF); - __raw_writel(dat, base + GPIODAT_OFF); - - gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); - - return 0; -} - -/* The next set of routines are for the case where the GPIO configuration - * registers are 4 bits per GPIO but there is more than one register (the - * bank has more than 8 GPIOs. - * - * This case is the similar to the 4 bit case, but the registers are as - * follows: - * - * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs) - * gpio n: 4 bits starting at (4*n) - * 0000 = input, 0001 = output, others mean special-function - * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs) - * gpio n: 4 bits starting at (4*n) - * 0000 = input, 0001 = output, others mean special-function - * base + 0x08: Data register, 1 bit per gpio - * bit n: data bit n - * - * To allow us to use the s3c_gpiolib_get and s3c_gpiolib_set routines we - * store the 'base + 0x4' address so that these routines see the data - * register at ourchip->base + 0x04. - */ - -static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip, - unsigned int offset) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - void __iomem *regcon = base; - unsigned long con; - - if (offset > 7) - offset -= 8; - else - regcon -= 4; - - con = __raw_readl(regcon); - con &= ~(0xf << con_4bit_shift(offset)); - __raw_writel(con, regcon); - - gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con); - - return 0; -} - -static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip, - unsigned int offset, int value) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - void __iomem *regcon = base; - unsigned long con; - unsigned long dat; - unsigned con_offset = offset; - - if (con_offset > 7) - con_offset -= 8; - else - regcon -= 4; - - con = __raw_readl(regcon); - con &= ~(0xf << con_4bit_shift(con_offset)); - con |= 0x1 << con_4bit_shift(con_offset); - - dat = __raw_readl(base + GPIODAT_OFF); - - if (value) - dat |= 1 << offset; - else - dat &= ~(1 << offset); - - __raw_writel(dat, base + GPIODAT_OFF); - __raw_writel(con, regcon); - __raw_writel(dat, base + GPIODAT_OFF); - - gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); - - return 0; -} - -void __init samsung_gpiolib_add_4bit(struct s3c_gpio_chip *chip) -{ - chip->chip.direction_input = samsung_gpiolib_4bit_input; - chip->chip.direction_output = samsung_gpiolib_4bit_output; - chip->pm = __gpio_pm(&s3c_gpio_pm_4bit); -} - -void __init samsung_gpiolib_add_4bit2(struct s3c_gpio_chip *chip) -{ - chip->chip.direction_input = samsung_gpiolib_4bit2_input; - chip->chip.direction_output = samsung_gpiolib_4bit2_output; - chip->pm = __gpio_pm(&s3c_gpio_pm_4bit); -} - -void __init samsung_gpiolib_add_4bit_chips(struct s3c_gpio_chip *chip, - int nr_chips) -{ - for (; nr_chips > 0; nr_chips--, chip++) { - samsung_gpiolib_add_4bit(chip); - s3c_gpiolib_add(chip); - } -} - -void __init samsung_gpiolib_add_4bit2_chips(struct s3c_gpio_chip *chip, - int nr_chips) -{ - for (; nr_chips > 0; nr_chips--, chip++) { - samsung_gpiolib_add_4bit2(chip); - s3c_gpiolib_add(chip); - } -} - -void __init samsung_gpiolib_add_2bit_chips(struct s3c_gpio_chip *chip, - int nr_chips) -{ - for (; nr_chips > 0; nr_chips--, chip++) - s3c_gpiolib_add(chip); -} diff --git a/drivers/gpio/gpio-s3c24xx.c b/drivers/gpio/gpio-s3c24xx.c deleted file mode 100644 index ff6103130fe8..000000000000 --- a/drivers/gpio/gpio-s3c24xx.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - * Copyright (c) 2008-2010 Simtec Electronics - * http://armlinux.simtec.co.uk/ - * Ben Dooks - * - * S3C24XX GPIOlib support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License. -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include -#include -#include -#include - -static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) -{ - return -EINVAL; -} - -static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, - unsigned offset, int value) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - unsigned long flags; - unsigned long dat; - unsigned long con; - - local_irq_save(flags); - - con = __raw_readl(base + 0x00); - dat = __raw_readl(base + 0x04); - - dat &= ~(1 << offset); - if (value) - dat |= 1 << offset; - - __raw_writel(dat, base + 0x04); - - con &= ~(1 << offset); - - __raw_writel(con, base + 0x00); - __raw_writel(dat, base + 0x04); - - local_irq_restore(flags); - return 0; -} - -static int s3c24xx_gpiolib_bankf_toirq(struct gpio_chip *chip, unsigned offset) -{ - if (offset < 4) - return IRQ_EINT0 + offset; - - if (offset < 8) - return IRQ_EINT4 + offset - 4; - - return -EINVAL; -} - -static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = { - .set_config = s3c_gpio_setcfg_s3c24xx_a, - .get_config = s3c_gpio_getcfg_s3c24xx_a, -}; - -struct s3c_gpio_cfg s3c24xx_gpiocfg_default = { - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, -}; - -struct s3c_gpio_chip s3c24xx_gpios[] = { - [0] = { - .base = S3C2410_GPACON, - .pm = __gpio_pm(&s3c_gpio_pm_1bit), - .config = &s3c24xx_gpiocfg_banka, - .chip = { - .base = S3C2410_GPA(0), - .owner = THIS_MODULE, - .label = "GPIOA", - .ngpio = 24, - .direction_input = s3c24xx_gpiolib_banka_input, - .direction_output = s3c24xx_gpiolib_banka_output, - }, - }, - [1] = { - .base = S3C2410_GPBCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPB(0), - .owner = THIS_MODULE, - .label = "GPIOB", - .ngpio = 16, - }, - }, - [2] = { - .base = S3C2410_GPCCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPC(0), - .owner = THIS_MODULE, - .label = "GPIOC", - .ngpio = 16, - }, - }, - [3] = { - .base = S3C2410_GPDCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPD(0), - .owner = THIS_MODULE, - .label = "GPIOD", - .ngpio = 16, - }, - }, - [4] = { - .base = S3C2410_GPECON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPE(0), - .label = "GPIOE", - .owner = THIS_MODULE, - .ngpio = 16, - }, - }, - [5] = { - .base = S3C2410_GPFCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPF(0), - .owner = THIS_MODULE, - .label = "GPIOF", - .ngpio = 8, - .to_irq = s3c24xx_gpiolib_bankf_toirq, - }, - }, - [6] = { - .base = S3C2410_GPGCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .irq_base = IRQ_EINT8, - .chip = { - .base = S3C2410_GPG(0), - .owner = THIS_MODULE, - .label = "GPIOG", - .ngpio = 16, - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = S3C2410_GPHCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPH(0), - .owner = THIS_MODULE, - .label = "GPIOH", - .ngpio = 11, - }, - }, - /* GPIOS for the S3C2443 and later devices. */ - { - .base = S3C2440_GPJCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPJ(0), - .owner = THIS_MODULE, - .label = "GPIOJ", - .ngpio = 16, - }, - }, { - .base = S3C2443_GPKCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPK(0), - .owner = THIS_MODULE, - .label = "GPIOK", - .ngpio = 16, - }, - }, { - .base = S3C2443_GPLCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPL(0), - .owner = THIS_MODULE, - .label = "GPIOL", - .ngpio = 15, - }, - }, { - .base = S3C2443_GPMCON, - .pm = __gpio_pm(&s3c_gpio_pm_2bit), - .chip = { - .base = S3C2410_GPM(0), - .owner = THIS_MODULE, - .label = "GPIOM", - .ngpio = 2, - }, - }, -}; - -static __init int s3c24xx_gpiolib_init(void) -{ - struct s3c_gpio_chip *chip = s3c24xx_gpios; - int gpn; - - for (gpn = 0; gpn < ARRAY_SIZE(s3c24xx_gpios); gpn++, chip++) { - if (!chip->config) - chip->config = &s3c24xx_gpiocfg_default; - - s3c_gpiolib_add(chip); - } - - return 0; -} -core_initcall(s3c24xx_gpiolib_init); - -/* gpiolib wrappers until these are totally eliminated */ - -void s3c2410_gpio_pullup(unsigned int pin, unsigned int to) -{ - int ret; - - WARN_ON(to); /* should be none of these left */ - - if (!to) { - /* if pull is enabled, try first with up, and if that - * fails, try using down */ - - ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP); - if (ret) - s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN); - } else { - s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE); - } -} -EXPORT_SYMBOL(s3c2410_gpio_pullup); - -void s3c2410_gpio_setpin(unsigned int pin, unsigned int to) -{ - /* do this via gpiolib until all users removed */ - - gpio_request(pin, "temporary"); - gpio_set_value(pin, to); - gpio_free(pin); -} -EXPORT_SYMBOL(s3c2410_gpio_setpin); - -unsigned int s3c2410_gpio_getpin(unsigned int pin) -{ - struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin); - unsigned long offs = pin - chip->chip.base; - - return __raw_readl(chip->base + 0x04) & (1<< offs); -} -EXPORT_SYMBOL(s3c2410_gpio_getpin); - -unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change) -{ - unsigned long flags; - unsigned long misccr; - - local_irq_save(flags); - misccr = __raw_readl(S3C24XX_MISCCR); - misccr &= ~clear; - misccr ^= change; - __raw_writel(misccr, S3C24XX_MISCCR); - local_irq_restore(flags); - - return misccr; -} -EXPORT_SYMBOL(s3c2410_modify_misccr); diff --git a/drivers/gpio/gpio-s3c64xx.c b/drivers/gpio/gpio-s3c64xx.c deleted file mode 100644 index b4f1c8204f03..000000000000 --- a/drivers/gpio/gpio-s3c64xx.c +++ /dev/null @@ -1,289 +0,0 @@ -/* - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks - * http://armlinux.simtec.co.uk/ - * - * S3C64XX - GPIOlib support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include - -#include - -#include -#include -#include -#include - -/* GPIO bank summary: - * - * Bank GPIOs Style SlpCon ExtInt Group - * A 8 4Bit Yes 1 - * B 7 4Bit Yes 1 - * C 8 4Bit Yes 2 - * D 5 4Bit Yes 3 - * E 5 4Bit Yes None - * F 16 2Bit Yes 4 [1] - * G 7 4Bit Yes 5 - * H 10 4Bit[2] Yes 6 - * I 16 2Bit Yes None - * J 12 2Bit Yes None - * K 16 4Bit[2] No None - * L 15 4Bit[2] No None - * M 6 4Bit No IRQ_EINT - * N 16 2Bit No IRQ_EINT - * O 16 2Bit Yes 7 - * P 15 2Bit Yes 8 - * Q 9 2Bit Yes 9 - * - * [1] BANKF pins 14,15 do not form part of the external interrupt sources - * [2] BANK has two control registers, GPxCON0 and GPxCON1 - */ - -static struct s3c_gpio_cfg gpio_4bit_cfg_noint = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .get_config = s3c_gpio_getcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_4bit_cfg_eint0111 = { - .cfg_eint = 7, - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .get_config = s3c_gpio_getcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_4bit_cfg_eint0011 = { - .cfg_eint = 3, - .get_config = s3c_gpio_getcfg_s3c64xx_4bit, - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static int s3c64xx_gpio2int_gpm(struct gpio_chip *chip, unsigned pin) -{ - return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO; -} - -static struct s3c_gpio_chip gpio_4bit[] = { - { - .base = S3C64XX_GPA_BASE, - .config = &gpio_4bit_cfg_eint0111, - .chip = { - .base = S3C64XX_GPA(0), - .ngpio = S3C64XX_GPIO_A_NR, - .label = "GPA", - }, - }, { - .base = S3C64XX_GPB_BASE, - .config = &gpio_4bit_cfg_eint0111, - .chip = { - .base = S3C64XX_GPB(0), - .ngpio = S3C64XX_GPIO_B_NR, - .label = "GPB", - }, - }, { - .base = S3C64XX_GPC_BASE, - .config = &gpio_4bit_cfg_eint0111, - .chip = { - .base = S3C64XX_GPC(0), - .ngpio = S3C64XX_GPIO_C_NR, - .label = "GPC", - }, - }, { - .base = S3C64XX_GPD_BASE, - .config = &gpio_4bit_cfg_eint0111, - .chip = { - .base = S3C64XX_GPD(0), - .ngpio = S3C64XX_GPIO_D_NR, - .label = "GPD", - }, - }, { - .base = S3C64XX_GPE_BASE, - .config = &gpio_4bit_cfg_noint, - .chip = { - .base = S3C64XX_GPE(0), - .ngpio = S3C64XX_GPIO_E_NR, - .label = "GPE", - }, - }, { - .base = S3C64XX_GPG_BASE, - .config = &gpio_4bit_cfg_eint0111, - .chip = { - .base = S3C64XX_GPG(0), - .ngpio = S3C64XX_GPIO_G_NR, - .label = "GPG", - }, - }, { - .base = S3C64XX_GPM_BASE, - .config = &gpio_4bit_cfg_eint0011, - .chip = { - .base = S3C64XX_GPM(0), - .ngpio = S3C64XX_GPIO_M_NR, - .label = "GPM", - .to_irq = s3c64xx_gpio2int_gpm, - }, - }, -}; - -static int s3c64xx_gpio2int_gpl(struct gpio_chip *chip, unsigned pin) -{ - return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO; -} - -static struct s3c_gpio_chip gpio_4bit2[] = { - { - .base = S3C64XX_GPH_BASE + 0x4, - .config = &gpio_4bit_cfg_eint0111, - .chip = { - .base = S3C64XX_GPH(0), - .ngpio = S3C64XX_GPIO_H_NR, - .label = "GPH", - }, - }, { - .base = S3C64XX_GPK_BASE + 0x4, - .config = &gpio_4bit_cfg_noint, - .chip = { - .base = S3C64XX_GPK(0), - .ngpio = S3C64XX_GPIO_K_NR, - .label = "GPK", - }, - }, { - .base = S3C64XX_GPL_BASE + 0x4, - .config = &gpio_4bit_cfg_eint0011, - .chip = { - .base = S3C64XX_GPL(0), - .ngpio = S3C64XX_GPIO_L_NR, - .label = "GPL", - .to_irq = s3c64xx_gpio2int_gpl, - }, - }, -}; - -static struct s3c_gpio_cfg gpio_2bit_cfg_noint = { - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_2bit_cfg_eint10 = { - .cfg_eint = 2, - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_2bit_cfg_eint11 = { - .cfg_eint = 3, - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_chip gpio_2bit[] = { - { - .base = S3C64XX_GPF_BASE, - .config = &gpio_2bit_cfg_eint11, - .chip = { - .base = S3C64XX_GPF(0), - .ngpio = S3C64XX_GPIO_F_NR, - .label = "GPF", - }, - }, { - .base = S3C64XX_GPI_BASE, - .config = &gpio_2bit_cfg_noint, - .chip = { - .base = S3C64XX_GPI(0), - .ngpio = S3C64XX_GPIO_I_NR, - .label = "GPI", - }, - }, { - .base = S3C64XX_GPJ_BASE, - .config = &gpio_2bit_cfg_noint, - .chip = { - .base = S3C64XX_GPJ(0), - .ngpio = S3C64XX_GPIO_J_NR, - .label = "GPJ", - }, - }, { - .base = S3C64XX_GPN_BASE, - .irq_base = IRQ_EINT(0), - .config = &gpio_2bit_cfg_eint10, - .chip = { - .base = S3C64XX_GPN(0), - .ngpio = S3C64XX_GPIO_N_NR, - .label = "GPN", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = S3C64XX_GPO_BASE, - .config = &gpio_2bit_cfg_eint11, - .chip = { - .base = S3C64XX_GPO(0), - .ngpio = S3C64XX_GPIO_O_NR, - .label = "GPO", - }, - }, { - .base = S3C64XX_GPP_BASE, - .config = &gpio_2bit_cfg_eint11, - .chip = { - .base = S3C64XX_GPP(0), - .ngpio = S3C64XX_GPIO_P_NR, - .label = "GPP", - }, - }, { - .base = S3C64XX_GPQ_BASE, - .config = &gpio_2bit_cfg_eint11, - .chip = { - .base = S3C64XX_GPQ(0), - .ngpio = S3C64XX_GPIO_Q_NR, - .label = "GPQ", - }, - }, -}; - -static __init void s3c64xx_gpiolib_add_2bit(struct s3c_gpio_chip *chip) -{ - chip->pm = __gpio_pm(&s3c_gpio_pm_2bit); -} - -static __init void s3c64xx_gpiolib_add(struct s3c_gpio_chip *chips, - int nr_chips, - void (*fn)(struct s3c_gpio_chip *)) -{ - for (; nr_chips > 0; nr_chips--, chips++) { - if (fn) - (fn)(chips); - s3c_gpiolib_add(chips); - } -} - -static __init int s3c64xx_gpiolib_init(void) -{ - s3c64xx_gpiolib_add(gpio_4bit, ARRAY_SIZE(gpio_4bit), - samsung_gpiolib_add_4bit); - - s3c64xx_gpiolib_add(gpio_4bit2, ARRAY_SIZE(gpio_4bit2), - samsung_gpiolib_add_4bit2); - - s3c64xx_gpiolib_add(gpio_2bit, ARRAY_SIZE(gpio_2bit), - s3c64xx_gpiolib_add_2bit); - - return 0; -} - -core_initcall(s3c64xx_gpiolib_init); diff --git a/drivers/gpio/gpio-s5p64x0.c b/drivers/gpio/gpio-s5p64x0.c deleted file mode 100644 index 96e816f5cc95..000000000000 --- a/drivers/gpio/gpio-s5p64x0.c +++ /dev/null @@ -1,510 +0,0 @@ -/* - * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * S5P64X0 - GPIOlib support - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#include -#include -#include -#include - -#include -#include -#include - -#include -#include -#include - -/* - * S5P6440 GPIO bank summary: - * - * Bank GPIOs Style SlpCon ExtInt Group - * A 6 4Bit Yes 1 - * B 7 4Bit Yes 1 - * C 8 4Bit Yes 2 - * F 2 2Bit Yes 4 [1] - * G 7 4Bit Yes 5 - * H 10 4Bit[2] Yes 6 - * I 16 2Bit Yes None - * J 12 2Bit Yes None - * N 16 2Bit No IRQ_EINT - * P 8 2Bit Yes 8 - * R 15 4Bit[2] Yes 8 - * - * S5P6450 GPIO bank summary: - * - * Bank GPIOs Style SlpCon ExtInt Group - * A 6 4Bit Yes 1 - * B 7 4Bit Yes 1 - * C 8 4Bit Yes 2 - * D 8 4Bit Yes None - * F 2 2Bit Yes None - * G 14 4Bit[2] Yes 5 - * H 10 4Bit[2] Yes 6 - * I 16 2Bit Yes None - * J 12 2Bit Yes None - * K 5 4Bit Yes None - * N 16 2Bit No IRQ_EINT - * P 11 2Bit Yes 8 - * Q 14 2Bit Yes None - * R 15 4Bit[2] Yes None - * S 8 2Bit Yes None - * - * [1] BANKF pins 14,15 do not form part of the external interrupt sources - * [2] BANK has two control registers, GPxCON0 and GPxCON1 - */ - -static int s5p64x0_gpiolib_rbank_4bit2_input(struct gpio_chip *chip, - unsigned int offset) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - void __iomem *regcon = base; - unsigned long con; - unsigned long flags; - - switch (offset) { - case 6: - offset += 1; - case 0: - case 1: - case 2: - case 3: - case 4: - case 5: - regcon -= 4; - break; - default: - offset -= 7; - break; - } - - s3c_gpio_lock(ourchip, flags); - - con = __raw_readl(regcon); - con &= ~(0xf << con_4bit_shift(offset)); - __raw_writel(con, regcon); - - s3c_gpio_unlock(ourchip, flags); - - return 0; -} - -static int s5p64x0_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, - unsigned int offset, int value) -{ - struct s3c_gpio_chip *ourchip = to_s3c_gpio(chip); - void __iomem *base = ourchip->base; - void __iomem *regcon = base; - unsigned long con; - unsigned long dat; - unsigned long flags; - unsigned con_offset = offset; - - switch (con_offset) { - case 6: - con_offset += 1; - case 0: - case 1: - case 2: - case 3: - case 4: - case 5: - regcon -= 4; - break; - default: - con_offset -= 7; - break; - } - - s3c_gpio_lock(ourchip, flags); - - con = __raw_readl(regcon); - con &= ~(0xf << con_4bit_shift(con_offset)); - con |= 0x1 << con_4bit_shift(con_offset); - - dat = __raw_readl(base + GPIODAT_OFF); - if (value) - dat |= 1 << offset; - else - dat &= ~(1 << offset); - - __raw_writel(con, regcon); - __raw_writel(dat, base + GPIODAT_OFF); - - s3c_gpio_unlock(ourchip, flags); - - return 0; -} - -int s5p64x0_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg) -{ - void __iomem *reg = chip->base; - unsigned int shift; - u32 con; - - switch (off) { - case 0: - case 1: - case 2: - case 3: - case 4: - case 5: - shift = (off & 7) * 4; - reg -= 4; - break; - case 6: - shift = ((off + 1) & 7) * 4; - reg -= 4; - default: - shift = ((off + 1) & 7) * 4; - break; - } - - if (s3c_gpio_is_cfg_special(cfg)) { - cfg &= 0xf; - cfg <<= shift; - } - - con = __raw_readl(reg); - con &= ~(0xf << shift); - con |= cfg; - __raw_writel(con, reg); - - return 0; -} - -static struct s3c_gpio_cfg s5p64x0_gpio_cfgs[] = { - { - .cfg_eint = 0, - }, { - .cfg_eint = 7, - }, { - .cfg_eint = 3, - .set_config = s5p64x0_gpio_setcfg_4bit_rbank, - }, { - .cfg_eint = 0, - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, - }, { - .cfg_eint = 2, - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, - }, { - .cfg_eint = 3, - .set_config = s3c_gpio_setcfg_s3c24xx, - .get_config = s3c_gpio_getcfg_s3c24xx, - }, -}; - -static struct s3c_gpio_chip s5p6440_gpio_4bit[] = { - { - .base = S5P64X0_GPA_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6440_GPA(0), - .ngpio = S5P6440_GPIO_A_NR, - .label = "GPA", - }, - }, { - .base = S5P64X0_GPB_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6440_GPB(0), - .ngpio = S5P6440_GPIO_B_NR, - .label = "GPB", - }, - }, { - .base = S5P64X0_GPC_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6440_GPC(0), - .ngpio = S5P6440_GPIO_C_NR, - .label = "GPC", - }, - }, { - .base = S5P64X0_GPG_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6440_GPG(0), - .ngpio = S5P6440_GPIO_G_NR, - .label = "GPG", - }, - }, -}; - -static struct s3c_gpio_chip s5p6440_gpio_4bit2[] = { - { - .base = S5P64X0_GPH_BASE + 0x4, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6440_GPH(0), - .ngpio = S5P6440_GPIO_H_NR, - .label = "GPH", - }, - }, -}; - -static struct s3c_gpio_chip s5p6440_gpio_rbank_4bit2[] = { - { - .base = S5P64X0_GPR_BASE + 0x4, - .config = &s5p64x0_gpio_cfgs[2], - .chip = { - .base = S5P6440_GPR(0), - .ngpio = S5P6440_GPIO_R_NR, - .label = "GPR", - }, - }, -}; - -static struct s3c_gpio_chip s5p6440_gpio_2bit[] = { - { - .base = S5P64X0_GPF_BASE, - .config = &s5p64x0_gpio_cfgs[5], - .chip = { - .base = S5P6440_GPF(0), - .ngpio = S5P6440_GPIO_F_NR, - .label = "GPF", - }, - }, { - .base = S5P64X0_GPI_BASE, - .config = &s5p64x0_gpio_cfgs[3], - .chip = { - .base = S5P6440_GPI(0), - .ngpio = S5P6440_GPIO_I_NR, - .label = "GPI", - }, - }, { - .base = S5P64X0_GPJ_BASE, - .config = &s5p64x0_gpio_cfgs[3], - .chip = { - .base = S5P6440_GPJ(0), - .ngpio = S5P6440_GPIO_J_NR, - .label = "GPJ", - }, - }, { - .base = S5P64X0_GPN_BASE, - .config = &s5p64x0_gpio_cfgs[4], - .chip = { - .base = S5P6440_GPN(0), - .ngpio = S5P6440_GPIO_N_NR, - .label = "GPN", - }, - }, { - .base = S5P64X0_GPP_BASE, - .config = &s5p64x0_gpio_cfgs[5], - .chip = { - .base = S5P6440_GPP(0), - .ngpio = S5P6440_GPIO_P_NR, - .label = "GPP", - }, - }, -}; - -static struct s3c_gpio_chip s5p6450_gpio_4bit[] = { - { - .base = S5P64X0_GPA_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPA(0), - .ngpio = S5P6450_GPIO_A_NR, - .label = "GPA", - }, - }, { - .base = S5P64X0_GPB_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPB(0), - .ngpio = S5P6450_GPIO_B_NR, - .label = "GPB", - }, - }, { - .base = S5P64X0_GPC_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPC(0), - .ngpio = S5P6450_GPIO_C_NR, - .label = "GPC", - }, - }, { - .base = S5P6450_GPD_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPD(0), - .ngpio = S5P6450_GPIO_D_NR, - .label = "GPD", - }, - }, { - .base = S5P6450_GPK_BASE, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPK(0), - .ngpio = S5P6450_GPIO_K_NR, - .label = "GPK", - }, - }, -}; - -static struct s3c_gpio_chip s5p6450_gpio_4bit2[] = { - { - .base = S5P64X0_GPG_BASE + 0x4, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPG(0), - .ngpio = S5P6450_GPIO_G_NR, - .label = "GPG", - }, - }, { - .base = S5P64X0_GPH_BASE + 0x4, - .config = &s5p64x0_gpio_cfgs[1], - .chip = { - .base = S5P6450_GPH(0), - .ngpio = S5P6450_GPIO_H_NR, - .label = "GPH", - }, - }, -}; - -static struct s3c_gpio_chip s5p6450_gpio_rbank_4bit2[] = { - { - .base = S5P64X0_GPR_BASE + 0x4, - .config = &s5p64x0_gpio_cfgs[2], - .chip = { - .base = S5P6450_GPR(0), - .ngpio = S5P6450_GPIO_R_NR, - .label = "GPR", - }, - }, -}; - -static struct s3c_gpio_chip s5p6450_gpio_2bit[] = { - { - .base = S5P64X0_GPF_BASE, - .config = &s5p64x0_gpio_cfgs[5], - .chip = { - .base = S5P6450_GPF(0), - .ngpio = S5P6450_GPIO_F_NR, - .label = "GPF", - }, - }, { - .base = S5P64X0_GPI_BASE, - .config = &s5p64x0_gpio_cfgs[3], - .chip = { - .base = S5P6450_GPI(0), - .ngpio = S5P6450_GPIO_I_NR, - .label = "GPI", - }, - }, { - .base = S5P64X0_GPJ_BASE, - .config = &s5p64x0_gpio_cfgs[3], - .chip = { - .base = S5P6450_GPJ(0), - .ngpio = S5P6450_GPIO_J_NR, - .label = "GPJ", - }, - }, { - .base = S5P64X0_GPN_BASE, - .config = &s5p64x0_gpio_cfgs[4], - .chip = { - .base = S5P6450_GPN(0), - .ngpio = S5P6450_GPIO_N_NR, - .label = "GPN", - }, - }, { - .base = S5P64X0_GPP_BASE, - .config = &s5p64x0_gpio_cfgs[5], - .chip = { - .base = S5P6450_GPP(0), - .ngpio = S5P6450_GPIO_P_NR, - .label = "GPP", - }, - }, { - .base = S5P6450_GPQ_BASE, - .config = &s5p64x0_gpio_cfgs[4], - .chip = { - .base = S5P6450_GPQ(0), - .ngpio = S5P6450_GPIO_Q_NR, - .label = "GPQ", - }, - }, { - .base = S5P6450_GPS_BASE, - .config = &s5p64x0_gpio_cfgs[5], - .chip = { - .base = S5P6450_GPS(0), - .ngpio = S5P6450_GPIO_S_NR, - .label = "GPS", - }, - }, -}; - -void __init s5p64x0_gpiolib_set_cfg(struct s3c_gpio_cfg *chipcfg, int nr_chips) -{ - for (; nr_chips > 0; nr_chips--, chipcfg++) { - if (!chipcfg->set_config) - chipcfg->set_config = s3c_gpio_setcfg_s3c64xx_4bit; - if (!chipcfg->get_config) - chipcfg->get_config = s3c_gpio_getcfg_s3c64xx_4bit; - if (!chipcfg->set_pull) - chipcfg->set_pull = s3c_gpio_setpull_updown; - if (!chipcfg->get_pull) - chipcfg->get_pull = s3c_gpio_getpull_updown; - } -} - -static void __init s5p64x0_gpio_add_rbank_4bit2(struct s3c_gpio_chip *chip, - int nr_chips) -{ - for (; nr_chips > 0; nr_chips--, chip++) { - chip->chip.direction_input = s5p64x0_gpiolib_rbank_4bit2_input; - chip->chip.direction_output = - s5p64x0_gpiolib_rbank_4bit2_output; - s3c_gpiolib_add(chip); - } -} - -static int __init s5p64x0_gpiolib_init(void) -{ - unsigned int chipid; - - chipid = __raw_readl(S5P64X0_SYS_ID); - - s5p64x0_gpiolib_set_cfg(s5p64x0_gpio_cfgs, - ARRAY_SIZE(s5p64x0_gpio_cfgs)); - - if ((chipid & 0xff000) == 0x50000) { - samsung_gpiolib_add_2bit_chips(s5p6450_gpio_2bit, - ARRAY_SIZE(s5p6450_gpio_2bit)); - - samsung_gpiolib_add_4bit_chips(s5p6450_gpio_4bit, - ARRAY_SIZE(s5p6450_gpio_4bit)); - - samsung_gpiolib_add_4bit2_chips(s5p6450_gpio_4bit2, - ARRAY_SIZE(s5p6450_gpio_4bit2)); - - s5p64x0_gpio_add_rbank_4bit2(s5p6450_gpio_rbank_4bit2, - ARRAY_SIZE(s5p6450_gpio_rbank_4bit2)); - } else { - samsung_gpiolib_add_2bit_chips(s5p6440_gpio_2bit, - ARRAY_SIZE(s5p6440_gpio_2bit)); - - samsung_gpiolib_add_4bit_chips(s5p6440_gpio_4bit, - ARRAY_SIZE(s5p6440_gpio_4bit)); - - samsung_gpiolib_add_4bit2_chips(s5p6440_gpio_4bit2, - ARRAY_SIZE(s5p6440_gpio_4bit2)); - - s5p64x0_gpio_add_rbank_4bit2(s5p6440_gpio_rbank_4bit2, - ARRAY_SIZE(s5p6440_gpio_rbank_4bit2)); - } - - return 0; -} -core_initcall(s5p64x0_gpiolib_init); diff --git a/drivers/gpio/gpio-s5pc100.c b/drivers/gpio/gpio-s5pc100.c deleted file mode 100644 index 7f87b0c76e0b..000000000000 --- a/drivers/gpio/gpio-s5pc100.c +++ /dev/null @@ -1,354 +0,0 @@ -/* - * S5PC100 - GPIOlib support - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Copyright 2009 Samsung Electronics Co - * Kyungmin Park - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include - -#include -#include - -#include -#include -#include - -/* S5PC100 GPIO bank summary: - * - * Bank GPIOs Style INT Type - * A0 8 4Bit GPIO_INT0 - * A1 5 4Bit GPIO_INT1 - * B 8 4Bit GPIO_INT2 - * C 5 4Bit GPIO_INT3 - * D 7 4Bit GPIO_INT4 - * E0 8 4Bit GPIO_INT5 - * E1 6 4Bit GPIO_INT6 - * F0 8 4Bit GPIO_INT7 - * F1 8 4Bit GPIO_INT8 - * F2 8 4Bit GPIO_INT9 - * F3 4 4Bit GPIO_INT10 - * G0 8 4Bit GPIO_INT11 - * G1 3 4Bit GPIO_INT12 - * G2 7 4Bit GPIO_INT13 - * G3 7 4Bit GPIO_INT14 - * H0 8 4Bit WKUP_INT - * H1 8 4Bit WKUP_INT - * H2 8 4Bit WKUP_INT - * H3 8 4Bit WKUP_INT - * I 8 4Bit GPIO_INT15 - * J0 8 4Bit GPIO_INT16 - * J1 5 4Bit GPIO_INT17 - * J2 8 4Bit GPIO_INT18 - * J3 8 4Bit GPIO_INT19 - * J4 4 4Bit GPIO_INT20 - * K0 8 4Bit None - * K1 6 4Bit None - * K2 8 4Bit None - * K3 8 4Bit None - * L0 8 4Bit None - * L1 8 4Bit None - * L2 8 4Bit None - * L3 8 4Bit None - */ - -static struct s3c_gpio_cfg gpio_cfg = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_cfg_eint = { - .cfg_eint = 0xf, - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_cfg_noint = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -/* - * GPIO bank's base address given the index of the bank in the - * list of all gpio banks. - */ -#define S5PC100_BANK_BASE(bank_nr) (S5P_VA_GPIO + ((bank_nr) * 0x20)) - -/* - * Following are the gpio banks in S5PC100. - * - * The 'config' member when left to NULL, is initialized to the default - * structure gpio_cfg in the init function below. - * - * The 'base' member is also initialized in the init function below. - * Note: The initialization of 'base' member of s3c_gpio_chip structure - * uses the above macro and depends on the banks being listed in order here. - */ -static struct s3c_gpio_chip s5pc100_gpio_chips[] = { - { - .chip = { - .base = S5PC100_GPA0(0), - .ngpio = S5PC100_GPIO_A0_NR, - .label = "GPA0", - }, - }, { - .chip = { - .base = S5PC100_GPA1(0), - .ngpio = S5PC100_GPIO_A1_NR, - .label = "GPA1", - }, - }, { - .chip = { - .base = S5PC100_GPB(0), - .ngpio = S5PC100_GPIO_B_NR, - .label = "GPB", - }, - }, { - .chip = { - .base = S5PC100_GPC(0), - .ngpio = S5PC100_GPIO_C_NR, - .label = "GPC", - }, - }, { - .chip = { - .base = S5PC100_GPD(0), - .ngpio = S5PC100_GPIO_D_NR, - .label = "GPD", - }, - }, { - .chip = { - .base = S5PC100_GPE0(0), - .ngpio = S5PC100_GPIO_E0_NR, - .label = "GPE0", - }, - }, { - .chip = { - .base = S5PC100_GPE1(0), - .ngpio = S5PC100_GPIO_E1_NR, - .label = "GPE1", - }, - }, { - .chip = { - .base = S5PC100_GPF0(0), - .ngpio = S5PC100_GPIO_F0_NR, - .label = "GPF0", - }, - }, { - .chip = { - .base = S5PC100_GPF1(0), - .ngpio = S5PC100_GPIO_F1_NR, - .label = "GPF1", - }, - }, { - .chip = { - .base = S5PC100_GPF2(0), - .ngpio = S5PC100_GPIO_F2_NR, - .label = "GPF2", - }, - }, { - .chip = { - .base = S5PC100_GPF3(0), - .ngpio = S5PC100_GPIO_F3_NR, - .label = "GPF3", - }, - }, { - .chip = { - .base = S5PC100_GPG0(0), - .ngpio = S5PC100_GPIO_G0_NR, - .label = "GPG0", - }, - }, { - .chip = { - .base = S5PC100_GPG1(0), - .ngpio = S5PC100_GPIO_G1_NR, - .label = "GPG1", - }, - }, { - .chip = { - .base = S5PC100_GPG2(0), - .ngpio = S5PC100_GPIO_G2_NR, - .label = "GPG2", - }, - }, { - .chip = { - .base = S5PC100_GPG3(0), - .ngpio = S5PC100_GPIO_G3_NR, - .label = "GPG3", - }, - }, { - .chip = { - .base = S5PC100_GPI(0), - .ngpio = S5PC100_GPIO_I_NR, - .label = "GPI", - }, - }, { - .chip = { - .base = S5PC100_GPJ0(0), - .ngpio = S5PC100_GPIO_J0_NR, - .label = "GPJ0", - }, - }, { - .chip = { - .base = S5PC100_GPJ1(0), - .ngpio = S5PC100_GPIO_J1_NR, - .label = "GPJ1", - }, - }, { - .chip = { - .base = S5PC100_GPJ2(0), - .ngpio = S5PC100_GPIO_J2_NR, - .label = "GPJ2", - }, - }, { - .chip = { - .base = S5PC100_GPJ3(0), - .ngpio = S5PC100_GPIO_J3_NR, - .label = "GPJ3", - }, - }, { - .chip = { - .base = S5PC100_GPJ4(0), - .ngpio = S5PC100_GPIO_J4_NR, - .label = "GPJ4", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPK0(0), - .ngpio = S5PC100_GPIO_K0_NR, - .label = "GPK0", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPK1(0), - .ngpio = S5PC100_GPIO_K1_NR, - .label = "GPK1", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPK2(0), - .ngpio = S5PC100_GPIO_K2_NR, - .label = "GPK2", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPK3(0), - .ngpio = S5PC100_GPIO_K3_NR, - .label = "GPK3", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPL0(0), - .ngpio = S5PC100_GPIO_L0_NR, - .label = "GPL0", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPL1(0), - .ngpio = S5PC100_GPIO_L1_NR, - .label = "GPL1", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPL2(0), - .ngpio = S5PC100_GPIO_L2_NR, - .label = "GPL2", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPL3(0), - .ngpio = S5PC100_GPIO_L3_NR, - .label = "GPL3", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PC100_GPL4(0), - .ngpio = S5PC100_GPIO_L4_NR, - .label = "GPL4", - }, - }, { - .base = (S5P_VA_GPIO + 0xC00), - .config = &gpio_cfg_eint, - .irq_base = IRQ_EINT(0), - .chip = { - .base = S5PC100_GPH0(0), - .ngpio = S5PC100_GPIO_H0_NR, - .label = "GPH0", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO + 0xC20), - .config = &gpio_cfg_eint, - .irq_base = IRQ_EINT(8), - .chip = { - .base = S5PC100_GPH1(0), - .ngpio = S5PC100_GPIO_H1_NR, - .label = "GPH1", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO + 0xC40), - .config = &gpio_cfg_eint, - .irq_base = IRQ_EINT(16), - .chip = { - .base = S5PC100_GPH2(0), - .ngpio = S5PC100_GPIO_H2_NR, - .label = "GPH2", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO + 0xC60), - .config = &gpio_cfg_eint, - .irq_base = IRQ_EINT(24), - .chip = { - .base = S5PC100_GPH3(0), - .ngpio = S5PC100_GPIO_H3_NR, - .label = "GPH3", - .to_irq = samsung_gpiolib_to_irq, - }, - }, -}; - -static __init int s5pc100_gpiolib_init(void) -{ - struct s3c_gpio_chip *chip = s5pc100_gpio_chips; - int nr_chips = ARRAY_SIZE(s5pc100_gpio_chips); - int gpioint_group = 0; - int i; - - for (i = 0; i < nr_chips; i++, chip++) { - if (chip->config == NULL) { - chip->config = &gpio_cfg; - chip->group = gpioint_group++; - } - if (chip->base == NULL) - chip->base = S5PC100_BANK_BASE(i); - } - - samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips, nr_chips); - s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR); - - return 0; -} -core_initcall(s5pc100_gpiolib_init); diff --git a/drivers/gpio/gpio-s5pv210.c b/drivers/gpio/gpio-s5pv210.c deleted file mode 100644 index eb12f1602de9..000000000000 --- a/drivers/gpio/gpio-s5pv210.c +++ /dev/null @@ -1,287 +0,0 @@ -/* - * S5PV210 - GPIOlib support - * - * Copyright (c) 2010 Samsung Electronics Co., Ltd. - * http://www.samsung.com/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -static struct s3c_gpio_cfg gpio_cfg = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -static struct s3c_gpio_cfg gpio_cfg_noint = { - .set_config = s3c_gpio_setcfg_s3c64xx_4bit, - .set_pull = s3c_gpio_setpull_updown, - .get_pull = s3c_gpio_getpull_updown, -}; - -/* GPIO bank's base address given the index of the bank in the - * list of all gpio banks. - */ -#define S5PV210_BANK_BASE(bank_nr) (S5P_VA_GPIO + ((bank_nr) * 0x20)) - -/* - * Following are the gpio banks in v210. - * - * The 'config' member when left to NULL, is initialized to the default - * structure gpio_cfg in the init function below. - * - * The 'base' member is also initialized in the init function below. - * Note: The initialization of 'base' member of s3c_gpio_chip structure - * uses the above macro and depends on the banks being listed in order here. - */ -static struct s3c_gpio_chip s5pv210_gpio_4bit[] = { - { - .chip = { - .base = S5PV210_GPA0(0), - .ngpio = S5PV210_GPIO_A0_NR, - .label = "GPA0", - }, - }, { - .chip = { - .base = S5PV210_GPA1(0), - .ngpio = S5PV210_GPIO_A1_NR, - .label = "GPA1", - }, - }, { - .chip = { - .base = S5PV210_GPB(0), - .ngpio = S5PV210_GPIO_B_NR, - .label = "GPB", - }, - }, { - .chip = { - .base = S5PV210_GPC0(0), - .ngpio = S5PV210_GPIO_C0_NR, - .label = "GPC0", - }, - }, { - .chip = { - .base = S5PV210_GPC1(0), - .ngpio = S5PV210_GPIO_C1_NR, - .label = "GPC1", - }, - }, { - .chip = { - .base = S5PV210_GPD0(0), - .ngpio = S5PV210_GPIO_D0_NR, - .label = "GPD0", - }, - }, { - .chip = { - .base = S5PV210_GPD1(0), - .ngpio = S5PV210_GPIO_D1_NR, - .label = "GPD1", - }, - }, { - .chip = { - .base = S5PV210_GPE0(0), - .ngpio = S5PV210_GPIO_E0_NR, - .label = "GPE0", - }, - }, { - .chip = { - .base = S5PV210_GPE1(0), - .ngpio = S5PV210_GPIO_E1_NR, - .label = "GPE1", - }, - }, { - .chip = { - .base = S5PV210_GPF0(0), - .ngpio = S5PV210_GPIO_F0_NR, - .label = "GPF0", - }, - }, { - .chip = { - .base = S5PV210_GPF1(0), - .ngpio = S5PV210_GPIO_F1_NR, - .label = "GPF1", - }, - }, { - .chip = { - .base = S5PV210_GPF2(0), - .ngpio = S5PV210_GPIO_F2_NR, - .label = "GPF2", - }, - }, { - .chip = { - .base = S5PV210_GPF3(0), - .ngpio = S5PV210_GPIO_F3_NR, - .label = "GPF3", - }, - }, { - .chip = { - .base = S5PV210_GPG0(0), - .ngpio = S5PV210_GPIO_G0_NR, - .label = "GPG0", - }, - }, { - .chip = { - .base = S5PV210_GPG1(0), - .ngpio = S5PV210_GPIO_G1_NR, - .label = "GPG1", - }, - }, { - .chip = { - .base = S5PV210_GPG2(0), - .ngpio = S5PV210_GPIO_G2_NR, - .label = "GPG2", - }, - }, { - .chip = { - .base = S5PV210_GPG3(0), - .ngpio = S5PV210_GPIO_G3_NR, - .label = "GPG3", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PV210_GPI(0), - .ngpio = S5PV210_GPIO_I_NR, - .label = "GPI", - }, - }, { - .chip = { - .base = S5PV210_GPJ0(0), - .ngpio = S5PV210_GPIO_J0_NR, - .label = "GPJ0", - }, - }, { - .chip = { - .base = S5PV210_GPJ1(0), - .ngpio = S5PV210_GPIO_J1_NR, - .label = "GPJ1", - }, - }, { - .chip = { - .base = S5PV210_GPJ2(0), - .ngpio = S5PV210_GPIO_J2_NR, - .label = "GPJ2", - }, - }, { - .chip = { - .base = S5PV210_GPJ3(0), - .ngpio = S5PV210_GPIO_J3_NR, - .label = "GPJ3", - }, - }, { - .chip = { - .base = S5PV210_GPJ4(0), - .ngpio = S5PV210_GPIO_J4_NR, - .label = "GPJ4", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PV210_MP01(0), - .ngpio = S5PV210_GPIO_MP01_NR, - .label = "MP01", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PV210_MP02(0), - .ngpio = S5PV210_GPIO_MP02_NR, - .label = "MP02", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PV210_MP03(0), - .ngpio = S5PV210_GPIO_MP03_NR, - .label = "MP03", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PV210_MP04(0), - .ngpio = S5PV210_GPIO_MP04_NR, - .label = "MP04", - }, - }, { - .config = &gpio_cfg_noint, - .chip = { - .base = S5PV210_MP05(0), - .ngpio = S5PV210_GPIO_MP05_NR, - .label = "MP05", - }, - }, { - .base = (S5P_VA_GPIO + 0xC00), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(0), - .chip = { - .base = S5PV210_GPH0(0), - .ngpio = S5PV210_GPIO_H0_NR, - .label = "GPH0", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO + 0xC20), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(8), - .chip = { - .base = S5PV210_GPH1(0), - .ngpio = S5PV210_GPIO_H1_NR, - .label = "GPH1", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO + 0xC40), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(16), - .chip = { - .base = S5PV210_GPH2(0), - .ngpio = S5PV210_GPIO_H2_NR, - .label = "GPH2", - .to_irq = samsung_gpiolib_to_irq, - }, - }, { - .base = (S5P_VA_GPIO + 0xC60), - .config = &gpio_cfg_noint, - .irq_base = IRQ_EINT(24), - .chip = { - .base = S5PV210_GPH3(0), - .ngpio = S5PV210_GPIO_H3_NR, - .label = "GPH3", - .to_irq = samsung_gpiolib_to_irq, - }, - }, -}; - -static __init int s5pv210_gpiolib_init(void) -{ - struct s3c_gpio_chip *chip = s5pv210_gpio_4bit; - int nr_chips = ARRAY_SIZE(s5pv210_gpio_4bit); - int gpioint_group = 0; - int i = 0; - - for (i = 0; i < nr_chips; i++, chip++) { - if (chip->config == NULL) { - chip->config = &gpio_cfg; - chip->group = gpioint_group++; - } - if (chip->base == NULL) - chip->base = S5PV210_BANK_BASE(i); - } - - samsung_gpiolib_add_4bit_chips(s5pv210_gpio_4bit, nr_chips); - s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR); - - return 0; -} -core_initcall(s5pv210_gpiolib_init); diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c new file mode 100644 index 000000000000..36f3675e7de8 --- /dev/null +++ b/drivers/gpio/gpio-samsung.c @@ -0,0 +1,2686 @@ +/* + * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com/ + * + * Copyright 2008 Openmoko, Inc. + * Copyright 2008 Simtec Electronics + * Ben Dooks + * http://armlinux.simtec.co.uk/ + * + * SAMSUNG - GPIOlib support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#ifndef DEBUG_GPIO +#define gpio_dbg(x...) do { } while (0) +#else +#define gpio_dbg(x...) printk(KERN_DEBUG x) +#endif + +int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) +{ + void __iomem *reg = chip->base + 0x08; + int shift = off * 2; + u32 pup; + + pup = __raw_readl(reg); + pup &= ~(3 << shift); + pup |= pull << shift; + __raw_writel(pup, reg); + + return 0; +} + +samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip, + unsigned int off) +{ + void __iomem *reg = chip->base + 0x08; + int shift = off * 2; + u32 pup = __raw_readl(reg); + + pup >>= shift; + pup &= 0x3; + + return (__force samsung_gpio_pull_t)pup; +} + +int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) +{ + switch (pull) { + case S3C_GPIO_PULL_NONE: + pull = 0x01; + break; + case S3C_GPIO_PULL_UP: + pull = 0x00; + break; + case S3C_GPIO_PULL_DOWN: + pull = 0x02; + break; + } + return samsung_gpio_setpull_updown(chip, off, pull); +} + +samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip, + unsigned int off) +{ + samsung_gpio_pull_t pull; + + pull = samsung_gpio_getpull_updown(chip, off); + + switch (pull) { + case 0x00: + pull = S3C_GPIO_PULL_UP; + break; + case 0x01: + case 0x03: + pull = S3C_GPIO_PULL_NONE; + break; + case 0x02: + pull = S3C_GPIO_PULL_DOWN; + break; + } + + return pull; +} + +static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull, + samsung_gpio_pull_t updown) +{ + void __iomem *reg = chip->base + 0x08; + u32 pup = __raw_readl(reg); + + if (pull == updown) + pup &= ~(1 << off); + else if (pull == S3C_GPIO_PULL_NONE) + pup |= (1 << off); + else + return -EINVAL; + + __raw_writel(pup, reg); + return 0; +} + +static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip, + unsigned int off, + samsung_gpio_pull_t updown) +{ + void __iomem *reg = chip->base + 0x08; + u32 pup = __raw_readl(reg); + + pup &= (1 << off); + return pup ? S3C_GPIO_PULL_NONE : updown; +} + +samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip, + unsigned int off) +{ + return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP); +} + +int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) +{ + return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP); +} + +samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip, + unsigned int off) +{ + return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN); +} + +int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) +{ + return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN); +} + +static int exynos4_gpio_setpull(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) +{ + if (pull == S3C_GPIO_PULL_UP) + pull = 3; + + return samsung_gpio_setpull_updown(chip, off, pull); +} + +static samsung_gpio_pull_t exynos4_gpio_getpull(struct samsung_gpio_chip *chip, + unsigned int off) +{ + samsung_gpio_pull_t pull; + + pull = samsung_gpio_getpull_updown(chip, off); + + if (pull == 3) + pull = S3C_GPIO_PULL_UP; + + return pull; +} + +/* + * samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration. + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * @cfg: The configuration value to set. + * + * This helper deal with the GPIO cases where the control register + * has two bits of configuration per gpio, which have the following + * functions: + * 00 = input + * 01 = output + * 1x = special function + */ + +static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip, + unsigned int off, unsigned int cfg) +{ + void __iomem *reg = chip->base; + unsigned int shift = off * 2; + u32 con; + + if (samsung_gpio_is_cfg_special(cfg)) { + cfg &= 0xf; + if (cfg > 3) + return -EINVAL; + + cfg <<= shift; + } + + con = __raw_readl(reg); + con &= ~(0x3 << shift); + con |= cfg; + __raw_writel(con, reg); + + return 0; +} + +/* + * samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read. + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * + * The reverse of samsung_gpio_setcfg_2bit(). Will return a value whicg + * could be directly passed back to samsung_gpio_setcfg_2bit(), from the + * S3C_GPIO_SPECIAL() macro. + */ + +static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip, + unsigned int off) +{ + u32 con; + + con = __raw_readl(chip->base); + con >>= off * 2; + con &= 3; + + /* this conversion works for IN and OUT as well as special mode */ + return S3C_GPIO_SPECIAL(con); +} + +/* + * samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config. + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * @cfg: The configuration value to set. + * + * This helper deal with the GPIO cases where the control register has 4 bits + * of control per GPIO, generally in the form of: + * 0000 = Input + * 0001 = Output + * others = Special functions (dependent on bank) + * + * Note, since the code to deal with the case where there are two control + * registers instead of one, we do not have a separate set of functions for + * each case. + */ + +static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip, + unsigned int off, unsigned int cfg) +{ + void __iomem *reg = chip->base; + unsigned int shift = (off & 7) * 4; + u32 con; + + if (off < 8 && chip->chip.ngpio > 8) + reg -= 4; + + if (samsung_gpio_is_cfg_special(cfg)) { + cfg &= 0xf; + cfg <<= shift; + } + + con = __raw_readl(reg); + con &= ~(0xf << shift); + con |= cfg; + __raw_writel(con, reg); + + return 0; +} + +/* + * samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read. + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * + * The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration + * register setting into a value the software can use, such as could be passed + * to samsung_gpio_setcfg_4bit(). + * + * @sa samsung_gpio_getcfg_2bit + */ + +static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip, + unsigned int off) +{ + void __iomem *reg = chip->base; + unsigned int shift = (off & 7) * 4; + u32 con; + + if (off < 8 && chip->chip.ngpio > 8) + reg -= 4; + + con = __raw_readl(reg); + con >>= shift; + con &= 0xf; + + /* this conversion works for IN and OUT as well as special mode */ + return S3C_GPIO_SPECIAL(con); +} + +/* + * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A) + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * @cfg: The configuration value to set. + * + * This helper deal with the GPIO cases where the control register + * has one bit of configuration for the gpio, where setting the bit + * means the pin is in special function mode and unset means output. + */ + +static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip, + unsigned int off, unsigned int cfg) +{ + void __iomem *reg = chip->base; + unsigned int shift = off; + u32 con; + + if (samsung_gpio_is_cfg_special(cfg)) { + cfg &= 0xf; + + /* Map output to 0, and SFN2 to 1 */ + cfg -= 1; + if (cfg > 1) + return -EINVAL; + + cfg <<= shift; + } + + con = __raw_readl(reg); + con &= ~(0x1 << shift); + con |= cfg; + __raw_writel(con, reg); + + return 0; +} + +/* + * s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A) + * @chip: The gpio chip that is being configured. + * @off: The offset for the GPIO being configured. + * + * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable + * GPIO configuration value. + * + * @sa samsung_gpio_getcfg_2bit + * @sa samsung_gpio_getcfg_4bit + */ + +static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip, + unsigned int off) +{ + u32 con; + + con = __raw_readl(chip->base); + con >>= off; + con &= 1; + con++; + + return S3C_GPIO_SFN(con); +} + +static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip, + unsigned int off, unsigned int cfg) +{ + void __iomem *reg = chip->base; + unsigned int shift; + u32 con; + + switch (off) { + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + shift = (off & 7) * 4; + reg -= 4; + break; + case 6: + shift = ((off + 1) & 7) * 4; + reg -= 4; + default: + shift = ((off + 1) & 7) * 4; + break; + } + + if (samsung_gpio_is_cfg_special(cfg)) { + cfg &= 0xf; + cfg <<= shift; + } + + con = __raw_readl(reg); + con &= ~(0xf << shift); + con |= cfg; + __raw_writel(con, reg); + + return 0; +} + +static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg, + int nr_chips) +{ + for (; nr_chips > 0; nr_chips--, chipcfg++) { + if (!chipcfg->set_config) + chipcfg->set_config = samsung_gpio_setcfg_4bit; + if (!chipcfg->get_config) + chipcfg->get_config = samsung_gpio_getcfg_4bit; + if (!chipcfg->set_pull) + chipcfg->set_pull = samsung_gpio_setpull_updown; + if (!chipcfg->get_pull) + chipcfg->get_pull = samsung_gpio_getpull_updown; + } +} + +struct samsung_gpio_cfg s3c24xx_gpiocfg_default = { + .set_config = samsung_gpio_setcfg_2bit, + .get_config = samsung_gpio_getcfg_2bit, +}; + +static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = { + .set_config = s3c24xx_gpio_setcfg_abank, + .get_config = s3c24xx_gpio_getcfg_abank, +}; + +static struct samsung_gpio_cfg exynos4_gpio_cfg = { + .set_pull = exynos4_gpio_setpull, + .get_pull = exynos4_gpio_getpull, +}; + +static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = { + .cfg_eint = 0x3, + .set_config = s5p64x0_gpio_setcfg_rbank, + .get_config = samsung_gpio_getcfg_4bit, + .set_pull = samsung_gpio_setpull_updown, + .get_pull = samsung_gpio_getpull_updown, +}; + +static struct samsung_gpio_cfg samsung_gpio_cfgs[] = { + { + .cfg_eint = 0x0, + }, { + .cfg_eint = 0x3, + }, { + .cfg_eint = 0x7, + }, { + .cfg_eint = 0xF, + }, { + .cfg_eint = 0x0, + .set_config = samsung_gpio_setcfg_2bit, + .get_config = samsung_gpio_getcfg_2bit, + }, { + .cfg_eint = 0x2, + .set_config = samsung_gpio_setcfg_2bit, + .get_config = samsung_gpio_getcfg_2bit, + }, { + .cfg_eint = 0x3, + .set_config = samsung_gpio_setcfg_2bit, + .get_config = samsung_gpio_getcfg_2bit, + }, { + .set_config = samsung_gpio_setcfg_2bit, + .get_config = samsung_gpio_getcfg_2bit, + }, +}; + +/* + * Default routines for controlling GPIO, based on the original S3C24XX + * GPIO functions which deal with the case where each gpio bank of the + * chip is as following: + * + * base + 0x00: Control register, 2 bits per gpio + * gpio n: 2 bits starting at (2*n) + * 00 = input, 01 = output, others mean special-function + * base + 0x04: Data register, 1 bit per gpio + * bit n: data bit n +*/ + +static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long flags; + unsigned long con; + + samsung_gpio_lock(ourchip, flags); + + con = __raw_readl(base + 0x00); + con &= ~(3 << (offset * 2)); + + __raw_writel(con, base + 0x00); + + samsung_gpio_unlock(ourchip, flags); + return 0; +} + +static int samsung_gpiolib_2bit_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long flags; + unsigned long dat; + unsigned long con; + + samsung_gpio_lock(ourchip, flags); + + dat = __raw_readl(base + 0x04); + dat &= ~(1 << offset); + if (value) + dat |= 1 << offset; + __raw_writel(dat, base + 0x04); + + con = __raw_readl(base + 0x00); + con &= ~(3 << (offset * 2)); + con |= 1 << (offset * 2); + + __raw_writel(con, base + 0x00); + __raw_writel(dat, base + 0x04); + + samsung_gpio_unlock(ourchip, flags); + return 0; +} + +/* + * The samsung_gpiolib_4bit routines are to control the gpio banks where + * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the + * following example: + * + * base + 0x00: Control register, 4 bits per gpio + * gpio n: 4 bits starting at (4*n) + * 0000 = input, 0001 = output, others mean special-function + * base + 0x04: Data register, 1 bit per gpio + * bit n: data bit n + * + * Note, since the data register is one bit per gpio and is at base + 0x4 + * we can use samsung_gpiolib_get and samsung_gpiolib_set to change the + * state of the output. + */ + +static int samsung_gpiolib_4bit_input(struct gpio_chip *chip, + unsigned int offset) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long con; + + con = __raw_readl(base + GPIOCON_OFF); + con &= ~(0xf << con_4bit_shift(offset)); + __raw_writel(con, base + GPIOCON_OFF); + + gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con); + + return 0; +} + +static int samsung_gpiolib_4bit_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long con; + unsigned long dat; + + con = __raw_readl(base + GPIOCON_OFF); + con &= ~(0xf << con_4bit_shift(offset)); + con |= 0x1 << con_4bit_shift(offset); + + dat = __raw_readl(base + GPIODAT_OFF); + + if (value) + dat |= 1 << offset; + else + dat &= ~(1 << offset); + + __raw_writel(dat, base + GPIODAT_OFF); + __raw_writel(con, base + GPIOCON_OFF); + __raw_writel(dat, base + GPIODAT_OFF); + + gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); + + return 0; +} + +/* + * The next set of routines are for the case where the GPIO configuration + * registers are 4 bits per GPIO but there is more than one register (the + * bank has more than 8 GPIOs. + * + * This case is the similar to the 4 bit case, but the registers are as + * follows: + * + * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs) + * gpio n: 4 bits starting at (4*n) + * 0000 = input, 0001 = output, others mean special-function + * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs) + * gpio n: 4 bits starting at (4*n) + * 0000 = input, 0001 = output, others mean special-function + * base + 0x08: Data register, 1 bit per gpio + * bit n: data bit n + * + * To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set + * routines we store the 'base + 0x4' address so that these routines see + * the data register at ourchip->base + 0x04. + */ + +static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip, + unsigned int offset) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + void __iomem *regcon = base; + unsigned long con; + + if (offset > 7) + offset -= 8; + else + regcon -= 4; + + con = __raw_readl(regcon); + con &= ~(0xf << con_4bit_shift(offset)); + __raw_writel(con, regcon); + + gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con); + + return 0; +} + +static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + void __iomem *regcon = base; + unsigned long con; + unsigned long dat; + unsigned con_offset = offset; + + if (con_offset > 7) + con_offset -= 8; + else + regcon -= 4; + + con = __raw_readl(regcon); + con &= ~(0xf << con_4bit_shift(con_offset)); + con |= 0x1 << con_4bit_shift(con_offset); + + dat = __raw_readl(base + GPIODAT_OFF); + + if (value) + dat |= 1 << offset; + else + dat &= ~(1 << offset); + + __raw_writel(dat, base + GPIODAT_OFF); + __raw_writel(con, regcon); + __raw_writel(dat, base + GPIODAT_OFF); + + gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); + + return 0; +} + +/* The next set of routines are for the case of s3c24xx bank a */ + +static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) +{ + return -EINVAL; +} + +static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long flags; + unsigned long dat; + unsigned long con; + + local_irq_save(flags); + + con = __raw_readl(base + 0x00); + dat = __raw_readl(base + 0x04); + + dat &= ~(1 << offset); + if (value) + dat |= 1 << offset; + + __raw_writel(dat, base + 0x04); + + con &= ~(1 << offset); + + __raw_writel(con, base + 0x00); + __raw_writel(dat, base + 0x04); + + local_irq_restore(flags); + return 0; +} + +/* The next set of routines are for the case of s5p64x0 bank r */ + +static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip, + unsigned int offset) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + void __iomem *regcon = base; + unsigned long con; + unsigned long flags; + + switch (offset) { + case 6: + offset += 1; + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + regcon -= 4; + break; + default: + offset -= 7; + break; + } + + samsung_gpio_lock(ourchip, flags); + + con = __raw_readl(regcon); + con &= ~(0xf << con_4bit_shift(offset)); + __raw_writel(con, regcon); + + samsung_gpio_unlock(ourchip, flags); + + return 0; +} + +static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + void __iomem *regcon = base; + unsigned long con; + unsigned long dat; + unsigned long flags; + unsigned con_offset = offset; + + switch (con_offset) { + case 6: + con_offset += 1; + case 0: + case 1: + case 2: + case 3: + case 4: + case 5: + regcon -= 4; + break; + default: + con_offset -= 7; + break; + } + + samsung_gpio_lock(ourchip, flags); + + con = __raw_readl(regcon); + con &= ~(0xf << con_4bit_shift(con_offset)); + con |= 0x1 << con_4bit_shift(con_offset); + + dat = __raw_readl(base + GPIODAT_OFF); + if (value) + dat |= 1 << offset; + else + dat &= ~(1 << offset); + + __raw_writel(con, regcon); + __raw_writel(dat, base + GPIODAT_OFF); + + samsung_gpio_unlock(ourchip, flags); + + return 0; +} + +static void samsung_gpiolib_set(struct gpio_chip *chip, + unsigned offset, int value) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + void __iomem *base = ourchip->base; + unsigned long flags; + unsigned long dat; + + samsung_gpio_lock(ourchip, flags); + + dat = __raw_readl(base + 0x04); + dat &= ~(1 << offset); + if (value) + dat |= 1 << offset; + __raw_writel(dat, base + 0x04); + + samsung_gpio_unlock(ourchip, flags); +} + +static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset) +{ + struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip); + unsigned long val; + + val = __raw_readl(ourchip->base + 0x04); + val >>= offset; + val &= 1; + + return val; +} + +/* + * CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios + * for use with the configuration calls, and other parts of the s3c gpiolib + * support code. + * + * Not all s3c support code will need this, as some configurations of cpu + * may only support one or two different configuration options and have an + * easy gpio to samsung_gpio_chip mapping function. If this is the case, then + * the machine support file should provide its own samsung_gpiolib_getchip() + * and any other necessary functions. + */ + +#ifdef CONFIG_S3C_GPIO_TRACK +struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END]; + +static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip) +{ + unsigned int gpn; + int i; + + gpn = chip->chip.base; + for (i = 0; i < chip->chip.ngpio; i++, gpn++) { + BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios)); + s3c_gpios[gpn] = chip; + } +} +#endif /* CONFIG_S3C_GPIO_TRACK */ + +/* + * samsung_gpiolib_add() - add the Samsung gpio_chip. + * @chip: The chip to register + * + * This is a wrapper to gpiochip_add() that takes our specific gpio chip + * information and makes the necessary alterations for the platform and + * notes the information for use with the configuration systems and any + * other parts of the system. + */ + +static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip) +{ + struct gpio_chip *gc = &chip->chip; + int ret; + + BUG_ON(!chip->base); + BUG_ON(!gc->label); + BUG_ON(!gc->ngpio); + + spin_lock_init(&chip->lock); + + if (!gc->direction_input) + gc->direction_input = samsung_gpiolib_2bit_input; + if (!gc->direction_output) + gc->direction_output = samsung_gpiolib_2bit_output; + if (!gc->set) + gc->set = samsung_gpiolib_set; + if (!gc->get) + gc->get = samsung_gpiolib_get; + +#ifdef CONFIG_PM + if (chip->pm != NULL) { + if (!chip->pm->save || !chip->pm->resume) + printk(KERN_ERR "gpio: %s has missing PM functions\n", + gc->label); + } else + printk(KERN_ERR "gpio: %s has no PM function\n", gc->label); +#endif + + /* gpiochip_add() prints own failure message on error. */ + ret = gpiochip_add(gc); + if (ret >= 0) + s3c_gpiolib_track(chip); +} + +static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip, + int nr_chips, void __iomem *base) +{ + int i; + struct gpio_chip *gc = &chip->chip; + + for (i = 0 ; i < nr_chips; i++, chip++) { + if (!chip->config) + chip->config = &s3c24xx_gpiocfg_default; + if (!chip->pm) + chip->pm = __gpio_pm(&samsung_gpio_pm_2bit); + if ((base != NULL) && (chip->base == NULL)) + chip->base = base + ((i) * 0x10); + + if (!gc->direction_input) + gc->direction_input = samsung_gpiolib_2bit_input; + if (!gc->direction_output) + gc->direction_output = samsung_gpiolib_2bit_output; + + samsung_gpiolib_add(chip); + } +} + +static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip, + int nr_chips, void __iomem *base, + unsigned int offset) +{ + int i; + + for (i = 0 ; i < nr_chips; i++, chip++) { + chip->chip.direction_input = samsung_gpiolib_2bit_input; + chip->chip.direction_output = samsung_gpiolib_2bit_output; + + if (!chip->config) + chip->config = &samsung_gpio_cfgs[7]; + if (!chip->pm) + chip->pm = __gpio_pm(&samsung_gpio_pm_2bit); + if ((base != NULL) && (chip->base == NULL)) + chip->base = base + ((i) * offset); + + samsung_gpiolib_add(chip); + } +} + +/* + * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config. + * @chip: The gpio chip that is being configured. + * @nr_chips: The no of chips (gpio ports) for the GPIO being configured. + * + * This helper deal with the GPIO cases where the control register has 4 bits + * of control per GPIO, generally in the form of: + * 0000 = Input + * 0001 = Output + * others = Special functions (dependent on bank) + * + * Note, since the code to deal with the case where there are two control + * registers instead of one, we do not have a separate set of function + * (samsung_gpiolib_add_4bit2_chips)for each case. + */ + +static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip, + int nr_chips, void __iomem *base) +{ + int i; + + for (i = 0 ; i < nr_chips; i++, chip++) { + chip->chip.direction_input = samsung_gpiolib_4bit_input; + chip->chip.direction_output = samsung_gpiolib_4bit_output; + + if (!chip->config) + chip->config = &samsung_gpio_cfgs[2]; + if (!chip->pm) + chip->pm = __gpio_pm(&samsung_gpio_pm_4bit); + if ((base != NULL) && (chip->base == NULL)) + chip->base = base + ((i) * 0x20); + + samsung_gpiolib_add(chip); + } +} + +static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip, + int nr_chips) +{ + for (; nr_chips > 0; nr_chips--, chip++) { + chip->chip.direction_input = samsung_gpiolib_4bit2_input; + chip->chip.direction_output = samsung_gpiolib_4bit2_output; + + if (!chip->config) + chip->config = &samsung_gpio_cfgs[2]; + if (!chip->pm) + chip->pm = __gpio_pm(&samsung_gpio_pm_4bit); + + samsung_gpiolib_add(chip); + } +} + +static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip, + int nr_chips) +{ + for (; nr_chips > 0; nr_chips--, chip++) { + chip->chip.direction_input = s5p64x0_gpiolib_rbank_input; + chip->chip.direction_output = s5p64x0_gpiolib_rbank_output; + + if (!chip->pm) + chip->pm = __gpio_pm(&samsung_gpio_pm_4bit); + + samsung_gpiolib_add(chip); + } +} + +int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset) +{ + struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip); + + return samsung_chip->irq_base + offset; +} + +#ifdef CONFIG_PLAT_S3C24XX +static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset) +{ + if (offset < 4) + return IRQ_EINT0 + offset; + + if (offset < 8) + return IRQ_EINT4 + offset - 4; + + return -EINVAL; +} +#endif + +#ifdef CONFIG_PLAT_S3C64XX +static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin) +{ + return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO; +} + +static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin) +{ + return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO; +} +#endif + +struct samsung_gpio_chip s3c24xx_gpios[] = { +#ifdef CONFIG_PLAT_S3C24XX + { + .config = &s3c24xx_gpiocfg_banka, + .chip = { + .base = S3C2410_GPA(0), + .owner = THIS_MODULE, + .label = "GPIOA", + .ngpio = 24, + .direction_input = s3c24xx_gpiolib_banka_input, + .direction_output = s3c24xx_gpiolib_banka_output, + }, + }, { + .chip = { + .base = S3C2410_GPB(0), + .owner = THIS_MODULE, + .label = "GPIOB", + .ngpio = 16, + }, + }, { + .chip = { + .base = S3C2410_GPC(0), + .owner = THIS_MODULE, + .label = "GPIOC", + .ngpio = 16, + }, + }, { + .chip = { + .base = S3C2410_GPD(0), + .owner = THIS_MODULE, + .label = "GPIOD", + .ngpio = 16, + }, + }, { + .chip = { + .base = S3C2410_GPE(0), + .label = "GPIOE", + .owner = THIS_MODULE, + .ngpio = 16, + }, + }, { + .chip = { + .base = S3C2410_GPF(0), + .owner = THIS_MODULE, + .label = "GPIOF", + .ngpio = 8, + .to_irq = s3c24xx_gpiolib_fbank_to_irq, + }, + }, { + .irq_base = IRQ_EINT8, + .chip = { + .base = S3C2410_GPG(0), + .owner = THIS_MODULE, + .label = "GPIOG", + .ngpio = 16, + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .chip = { + .base = S3C2410_GPH(0), + .owner = THIS_MODULE, + .label = "GPIOH", + .ngpio = 11, + }, + }, + /* GPIOS for the S3C2443 and later devices. */ + { + .base = S3C2440_GPJCON, + .chip = { + .base = S3C2410_GPJ(0), + .owner = THIS_MODULE, + .label = "GPIOJ", + .ngpio = 16, + }, + }, { + .base = S3C2443_GPKCON, + .chip = { + .base = S3C2410_GPK(0), + .owner = THIS_MODULE, + .label = "GPIOK", + .ngpio = 16, + }, + }, { + .base = S3C2443_GPLCON, + .chip = { + .base = S3C2410_GPL(0), + .owner = THIS_MODULE, + .label = "GPIOL", + .ngpio = 15, + }, + }, { + .base = S3C2443_GPMCON, + .chip = { + .base = S3C2410_GPM(0), + .owner = THIS_MODULE, + .label = "GPIOM", + .ngpio = 2, + }, + }, +#endif +}; + +/* + * GPIO bank summary: + * + * Bank GPIOs Style SlpCon ExtInt Group + * A 8 4Bit Yes 1 + * B 7 4Bit Yes 1 + * C 8 4Bit Yes 2 + * D 5 4Bit Yes 3 + * E 5 4Bit Yes None + * F 16 2Bit Yes 4 [1] + * G 7 4Bit Yes 5 + * H 10 4Bit[2] Yes 6 + * I 16 2Bit Yes None + * J 12 2Bit Yes None + * K 16 4Bit[2] No None + * L 15 4Bit[2] No None + * M 6 4Bit No IRQ_EINT + * N 16 2Bit No IRQ_EINT + * O 16 2Bit Yes 7 + * P 15 2Bit Yes 8 + * Q 9 2Bit Yes 9 + * + * [1] BANKF pins 14,15 do not form part of the external interrupt sources + * [2] BANK has two control registers, GPxCON0 and GPxCON1 + */ + +static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = { +#ifdef CONFIG_PLAT_S3C64XX + { + .chip = { + .base = S3C64XX_GPA(0), + .ngpio = S3C64XX_GPIO_A_NR, + .label = "GPA", + }, + }, { + .chip = { + .base = S3C64XX_GPB(0), + .ngpio = S3C64XX_GPIO_B_NR, + .label = "GPB", + }, + }, { + .chip = { + .base = S3C64XX_GPC(0), + .ngpio = S3C64XX_GPIO_C_NR, + .label = "GPC", + }, + }, { + .chip = { + .base = S3C64XX_GPD(0), + .ngpio = S3C64XX_GPIO_D_NR, + .label = "GPD", + }, + }, { + .config = &samsung_gpio_cfgs[0], + .chip = { + .base = S3C64XX_GPE(0), + .ngpio = S3C64XX_GPIO_E_NR, + .label = "GPE", + }, + }, { + .base = S3C64XX_GPG_BASE, + .chip = { + .base = S3C64XX_GPG(0), + .ngpio = S3C64XX_GPIO_G_NR, + .label = "GPG", + }, + }, { + .base = S3C64XX_GPM_BASE, + .config = &samsung_gpio_cfgs[1], + .chip = { + .base = S3C64XX_GPM(0), + .ngpio = S3C64XX_GPIO_M_NR, + .label = "GPM", + .to_irq = s3c64xx_gpiolib_mbank_to_irq, + }, + }, +#endif +}; + +static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = { +#ifdef CONFIG_PLAT_S3C64XX + { + .base = S3C64XX_GPH_BASE + 0x4, + .chip = { + .base = S3C64XX_GPH(0), + .ngpio = S3C64XX_GPIO_H_NR, + .label = "GPH", + }, + }, { + .base = S3C64XX_GPK_BASE + 0x4, + .config = &samsung_gpio_cfgs[0], + .chip = { + .base = S3C64XX_GPK(0), + .ngpio = S3C64XX_GPIO_K_NR, + .label = "GPK", + }, + }, { + .base = S3C64XX_GPL_BASE + 0x4, + .config = &samsung_gpio_cfgs[1], + .chip = { + .base = S3C64XX_GPL(0), + .ngpio = S3C64XX_GPIO_L_NR, + .label = "GPL", + .to_irq = s3c64xx_gpiolib_lbank_to_irq, + }, + }, +#endif +}; + +static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = { +#ifdef CONFIG_PLAT_S3C64XX + { + .base = S3C64XX_GPF_BASE, + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S3C64XX_GPF(0), + .ngpio = S3C64XX_GPIO_F_NR, + .label = "GPF", + }, + }, { + .config = &samsung_gpio_cfgs[7], + .chip = { + .base = S3C64XX_GPI(0), + .ngpio = S3C64XX_GPIO_I_NR, + .label = "GPI", + }, + }, { + .config = &samsung_gpio_cfgs[7], + .chip = { + .base = S3C64XX_GPJ(0), + .ngpio = S3C64XX_GPIO_J_NR, + .label = "GPJ", + }, + }, { + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S3C64XX_GPO(0), + .ngpio = S3C64XX_GPIO_O_NR, + .label = "GPO", + }, + }, { + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S3C64XX_GPP(0), + .ngpio = S3C64XX_GPIO_P_NR, + .label = "GPP", + }, + }, { + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S3C64XX_GPQ(0), + .ngpio = S3C64XX_GPIO_Q_NR, + .label = "GPQ", + }, + }, { + .base = S3C64XX_GPN_BASE, + .irq_base = IRQ_EINT(0), + .config = &samsung_gpio_cfgs[5], + .chip = { + .base = S3C64XX_GPN(0), + .ngpio = S3C64XX_GPIO_N_NR, + .label = "GPN", + .to_irq = samsung_gpiolib_to_irq, + }, + }, +#endif +}; + +/* + * S5P6440 GPIO bank summary: + * + * Bank GPIOs Style SlpCon ExtInt Group + * A 6 4Bit Yes 1 + * B 7 4Bit Yes 1 + * C 8 4Bit Yes 2 + * F 2 2Bit Yes 4 [1] + * G 7 4Bit Yes 5 + * H 10 4Bit[2] Yes 6 + * I 16 2Bit Yes None + * J 12 2Bit Yes None + * N 16 2Bit No IRQ_EINT + * P 8 2Bit Yes 8 + * R 15 4Bit[2] Yes 8 + */ + +static struct samsung_gpio_chip s5p6440_gpios_4bit[] = { +#ifdef CONFIG_CPU_S5P6440 + { + .chip = { + .base = S5P6440_GPA(0), + .ngpio = S5P6440_GPIO_A_NR, + .label = "GPA", + }, + }, { + .chip = { + .base = S5P6440_GPB(0), + .ngpio = S5P6440_GPIO_B_NR, + .label = "GPB", + }, + }, { + .chip = { + .base = S5P6440_GPC(0), + .ngpio = S5P6440_GPIO_C_NR, + .label = "GPC", + }, + }, { + .base = S5P64X0_GPG_BASE, + .chip = { + .base = S5P6440_GPG(0), + .ngpio = S5P6440_GPIO_G_NR, + .label = "GPG", + }, + }, +#endif +}; + +static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = { +#ifdef CONFIG_CPU_S5P6440 + { + .base = S5P64X0_GPH_BASE + 0x4, + .chip = { + .base = S5P6440_GPH(0), + .ngpio = S5P6440_GPIO_H_NR, + .label = "GPH", + }, + }, +#endif +}; + +static struct samsung_gpio_chip s5p6440_gpios_rbank[] = { +#ifdef CONFIG_CPU_S5P6440 + { + .base = S5P64X0_GPR_BASE + 0x4, + .config = &s5p64x0_gpio_cfg_rbank, + .chip = { + .base = S5P6440_GPR(0), + .ngpio = S5P6440_GPIO_R_NR, + .label = "GPR", + }, + }, +#endif +}; + +static struct samsung_gpio_chip s5p6440_gpios_2bit[] = { +#ifdef CONFIG_CPU_S5P6440 + { + .base = S5P64X0_GPF_BASE, + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S5P6440_GPF(0), + .ngpio = S5P6440_GPIO_F_NR, + .label = "GPF", + }, + }, { + .base = S5P64X0_GPI_BASE, + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = S5P6440_GPI(0), + .ngpio = S5P6440_GPIO_I_NR, + .label = "GPI", + }, + }, { + .base = S5P64X0_GPJ_BASE, + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = S5P6440_GPJ(0), + .ngpio = S5P6440_GPIO_J_NR, + .label = "GPJ", + }, + }, { + .base = S5P64X0_GPN_BASE, + .config = &samsung_gpio_cfgs[5], + .chip = { + .base = S5P6440_GPN(0), + .ngpio = S5P6440_GPIO_N_NR, + .label = "GPN", + }, + }, { + .base = S5P64X0_GPP_BASE, + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S5P6440_GPP(0), + .ngpio = S5P6440_GPIO_P_NR, + .label = "GPP", + }, + }, +#endif +}; + +/* + * S5P6450 GPIO bank summary: + * + * Bank GPIOs Style SlpCon ExtInt Group + * A 6 4Bit Yes 1 + * B 7 4Bit Yes 1 + * C 8 4Bit Yes 2 + * D 8 4Bit Yes None + * F 2 2Bit Yes None + * G 14 4Bit[2] Yes 5 + * H 10 4Bit[2] Yes 6 + * I 16 2Bit Yes None + * J 12 2Bit Yes None + * K 5 4Bit Yes None + * N 16 2Bit No IRQ_EINT + * P 11 2Bit Yes 8 + * Q 14 2Bit Yes None + * R 15 4Bit[2] Yes None + * S 8 2Bit Yes None + * + * [1] BANKF pins 14,15 do not form part of the external interrupt sources + * [2] BANK has two control registers, GPxCON0 and GPxCON1 + */ + +static struct samsung_gpio_chip s5p6450_gpios_4bit[] = { +#ifdef CONFIG_CPU_S5P6450 + { + .chip = { + .base = S5P6450_GPA(0), + .ngpio = S5P6450_GPIO_A_NR, + .label = "GPA", + }, + }, { + .chip = { + .base = S5P6450_GPB(0), + .ngpio = S5P6450_GPIO_B_NR, + .label = "GPB", + }, + }, { + .chip = { + .base = S5P6450_GPC(0), + .ngpio = S5P6450_GPIO_C_NR, + .label = "GPC", + }, + }, { + .chip = { + .base = S5P6450_GPD(0), + .ngpio = S5P6450_GPIO_D_NR, + .label = "GPD", + }, + }, { + .base = S5P6450_GPK_BASE, + .chip = { + .base = S5P6450_GPK(0), + .ngpio = S5P6450_GPIO_K_NR, + .label = "GPK", + }, + }, +#endif +}; + +static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = { +#ifdef CONFIG_CPU_S5P6450 + { + .base = S5P64X0_GPG_BASE + 0x4, + .chip = { + .base = S5P6450_GPG(0), + .ngpio = S5P6450_GPIO_G_NR, + .label = "GPG", + }, + }, { + .base = S5P64X0_GPH_BASE + 0x4, + .chip = { + .base = S5P6450_GPH(0), + .ngpio = S5P6450_GPIO_H_NR, + .label = "GPH", + }, + }, +#endif +}; + +static struct samsung_gpio_chip s5p6450_gpios_rbank[] = { +#ifdef CONFIG_CPU_S5P6450 + { + .base = S5P64X0_GPR_BASE + 0x4, + .config = &s5p64x0_gpio_cfg_rbank, + .chip = { + .base = S5P6450_GPR(0), + .ngpio = S5P6450_GPIO_R_NR, + .label = "GPR", + }, + }, +#endif +}; + +static struct samsung_gpio_chip s5p6450_gpios_2bit[] = { +#ifdef CONFIG_CPU_S5P6450 + { + .base = S5P64X0_GPF_BASE, + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S5P6450_GPF(0), + .ngpio = S5P6450_GPIO_F_NR, + .label = "GPF", + }, + }, { + .base = S5P64X0_GPI_BASE, + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = S5P6450_GPI(0), + .ngpio = S5P6450_GPIO_I_NR, + .label = "GPI", + }, + }, { + .base = S5P64X0_GPJ_BASE, + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = S5P6450_GPJ(0), + .ngpio = S5P6450_GPIO_J_NR, + .label = "GPJ", + }, + }, { + .base = S5P64X0_GPN_BASE, + .config = &samsung_gpio_cfgs[5], + .chip = { + .base = S5P6450_GPN(0), + .ngpio = S5P6450_GPIO_N_NR, + .label = "GPN", + }, + }, { + .base = S5P64X0_GPP_BASE, + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S5P6450_GPP(0), + .ngpio = S5P6450_GPIO_P_NR, + .label = "GPP", + }, + }, { + .base = S5P6450_GPQ_BASE, + .config = &samsung_gpio_cfgs[5], + .chip = { + .base = S5P6450_GPQ(0), + .ngpio = S5P6450_GPIO_Q_NR, + .label = "GPQ", + }, + }, { + .base = S5P6450_GPS_BASE, + .config = &samsung_gpio_cfgs[6], + .chip = { + .base = S5P6450_GPS(0), + .ngpio = S5P6450_GPIO_S_NR, + .label = "GPS", + }, + }, +#endif +}; + +/* + * S5PC100 GPIO bank summary: + * + * Bank GPIOs Style INT Type + * A0 8 4Bit GPIO_INT0 + * A1 5 4Bit GPIO_INT1 + * B 8 4Bit GPIO_INT2 + * C 5 4Bit GPIO_INT3 + * D 7 4Bit GPIO_INT4 + * E0 8 4Bit GPIO_INT5 + * E1 6 4Bit GPIO_INT6 + * F0 8 4Bit GPIO_INT7 + * F1 8 4Bit GPIO_INT8 + * F2 8 4Bit GPIO_INT9 + * F3 4 4Bit GPIO_INT10 + * G0 8 4Bit GPIO_INT11 + * G1 3 4Bit GPIO_INT12 + * G2 7 4Bit GPIO_INT13 + * G3 7 4Bit GPIO_INT14 + * H0 8 4Bit WKUP_INT + * H1 8 4Bit WKUP_INT + * H2 8 4Bit WKUP_INT + * H3 8 4Bit WKUP_INT + * I 8 4Bit GPIO_INT15 + * J0 8 4Bit GPIO_INT16 + * J1 5 4Bit GPIO_INT17 + * J2 8 4Bit GPIO_INT18 + * J3 8 4Bit GPIO_INT19 + * J4 4 4Bit GPIO_INT20 + * K0 8 4Bit None + * K1 6 4Bit None + * K2 8 4Bit None + * K3 8 4Bit None + * L0 8 4Bit None + * L1 8 4Bit None + * L2 8 4Bit None + * L3 8 4Bit None + */ + +static struct samsung_gpio_chip s5pc100_gpios_4bit[] = { +#ifdef CONFIG_CPU_S5PC100 + { + .chip = { + .base = S5PC100_GPA0(0), + .ngpio = S5PC100_GPIO_A0_NR, + .label = "GPA0", + }, + }, { + .chip = { + .base = S5PC100_GPA1(0), + .ngpio = S5PC100_GPIO_A1_NR, + .label = "GPA1", + }, + }, { + .chip = { + .base = S5PC100_GPB(0), + .ngpio = S5PC100_GPIO_B_NR, + .label = "GPB", + }, + }, { + .chip = { + .base = S5PC100_GPC(0), + .ngpio = S5PC100_GPIO_C_NR, + .label = "GPC", + }, + }, { + .chip = { + .base = S5PC100_GPD(0), + .ngpio = S5PC100_GPIO_D_NR, + .label = "GPD", + }, + }, { + .chip = { + .base = S5PC100_GPE0(0), + .ngpio = S5PC100_GPIO_E0_NR, + .label = "GPE0", + }, + }, { + .chip = { + .base = S5PC100_GPE1(0), + .ngpio = S5PC100_GPIO_E1_NR, + .label = "GPE1", + }, + }, { + .chip = { + .base = S5PC100_GPF0(0), + .ngpio = S5PC100_GPIO_F0_NR, + .label = "GPF0", + }, + }, { + .chip = { + .base = S5PC100_GPF1(0), + .ngpio = S5PC100_GPIO_F1_NR, + .label = "GPF1", + }, + }, { + .chip = { + .base = S5PC100_GPF2(0), + .ngpio = S5PC100_GPIO_F2_NR, + .label = "GPF2", + }, + }, { + .chip = { + .base = S5PC100_GPF3(0), + .ngpio = S5PC100_GPIO_F3_NR, + .label = "GPF3", + }, + }, { + .chip = { + .base = S5PC100_GPG0(0), + .ngpio = S5PC100_GPIO_G0_NR, + .label = "GPG0", + }, + }, { + .chip = { + .base = S5PC100_GPG1(0), + .ngpio = S5PC100_GPIO_G1_NR, + .label = "GPG1", + }, + }, { + .chip = { + .base = S5PC100_GPG2(0), + .ngpio = S5PC100_GPIO_G2_NR, + .label = "GPG2", + }, + }, { + .chip = { + .base = S5PC100_GPG3(0), + .ngpio = S5PC100_GPIO_G3_NR, + .label = "GPG3", + }, + }, { + .chip = { + .base = S5PC100_GPI(0), + .ngpio = S5PC100_GPIO_I_NR, + .label = "GPI", + }, + }, { + .chip = { + .base = S5PC100_GPJ0(0), + .ngpio = S5PC100_GPIO_J0_NR, + .label = "GPJ0", + }, + }, { + .chip = { + .base = S5PC100_GPJ1(0), + .ngpio = S5PC100_GPIO_J1_NR, + .label = "GPJ1", + }, + }, { + .chip = { + .base = S5PC100_GPJ2(0), + .ngpio = S5PC100_GPIO_J2_NR, + .label = "GPJ2", + }, + }, { + .chip = { + .base = S5PC100_GPJ3(0), + .ngpio = S5PC100_GPIO_J3_NR, + .label = "GPJ3", + }, + }, { + .chip = { + .base = S5PC100_GPJ4(0), + .ngpio = S5PC100_GPIO_J4_NR, + .label = "GPJ4", + }, + }, { + .chip = { + .base = S5PC100_GPK0(0), + .ngpio = S5PC100_GPIO_K0_NR, + .label = "GPK0", + }, + }, { + .chip = { + .base = S5PC100_GPK1(0), + .ngpio = S5PC100_GPIO_K1_NR, + .label = "GPK1", + }, + }, { + .chip = { + .base = S5PC100_GPK2(0), + .ngpio = S5PC100_GPIO_K2_NR, + .label = "GPK2", + }, + }, { + .chip = { + .base = S5PC100_GPK3(0), + .ngpio = S5PC100_GPIO_K3_NR, + .label = "GPK3", + }, + }, { + .chip = { + .base = S5PC100_GPL0(0), + .ngpio = S5PC100_GPIO_L0_NR, + .label = "GPL0", + }, + }, { + .chip = { + .base = S5PC100_GPL1(0), + .ngpio = S5PC100_GPIO_L1_NR, + .label = "GPL1", + }, + }, { + .chip = { + .base = S5PC100_GPL2(0), + .ngpio = S5PC100_GPIO_L2_NR, + .label = "GPL2", + }, + }, { + .chip = { + .base = S5PC100_GPL3(0), + .ngpio = S5PC100_GPIO_L3_NR, + .label = "GPL3", + }, + }, { + .chip = { + .base = S5PC100_GPL4(0), + .ngpio = S5PC100_GPIO_L4_NR, + .label = "GPL4", + }, + }, { + .base = (S5P_VA_GPIO + 0xC00), + .irq_base = IRQ_EINT(0), + .chip = { + .base = S5PC100_GPH0(0), + .ngpio = S5PC100_GPIO_H0_NR, + .label = "GPH0", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO + 0xC20), + .irq_base = IRQ_EINT(8), + .chip = { + .base = S5PC100_GPH1(0), + .ngpio = S5PC100_GPIO_H1_NR, + .label = "GPH1", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO + 0xC40), + .irq_base = IRQ_EINT(16), + .chip = { + .base = S5PC100_GPH2(0), + .ngpio = S5PC100_GPIO_H2_NR, + .label = "GPH2", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO + 0xC60), + .irq_base = IRQ_EINT(24), + .chip = { + .base = S5PC100_GPH3(0), + .ngpio = S5PC100_GPIO_H3_NR, + .label = "GPH3", + .to_irq = samsung_gpiolib_to_irq, + }, + }, +#endif +}; + +/* + * Followings are the gpio banks in S5PV210/S5PC110 + * + * The 'config' member when left to NULL, is initialized to the default + * structure samsung_gpio_cfgs[4] in the init function below. + * + * The 'base' member is also initialized in the init function below. + * Note: The initialization of 'base' member of samsung_gpio_chip structure + * uses the above macro and depends on the banks being listed in order here. + */ + +static struct samsung_gpio_chip s5pv210_gpios_4bit[] = { +#ifdef CONFIG_CPU_S5PV210 + { + .chip = { + .base = S5PV210_GPA0(0), + .ngpio = S5PV210_GPIO_A0_NR, + .label = "GPA0", + }, + }, { + .chip = { + .base = S5PV210_GPA1(0), + .ngpio = S5PV210_GPIO_A1_NR, + .label = "GPA1", + }, + }, { + .chip = { + .base = S5PV210_GPB(0), + .ngpio = S5PV210_GPIO_B_NR, + .label = "GPB", + }, + }, { + .chip = { + .base = S5PV210_GPC0(0), + .ngpio = S5PV210_GPIO_C0_NR, + .label = "GPC0", + }, + }, { + .chip = { + .base = S5PV210_GPC1(0), + .ngpio = S5PV210_GPIO_C1_NR, + .label = "GPC1", + }, + }, { + .chip = { + .base = S5PV210_GPD0(0), + .ngpio = S5PV210_GPIO_D0_NR, + .label = "GPD0", + }, + }, { + .chip = { + .base = S5PV210_GPD1(0), + .ngpio = S5PV210_GPIO_D1_NR, + .label = "GPD1", + }, + }, { + .chip = { + .base = S5PV210_GPE0(0), + .ngpio = S5PV210_GPIO_E0_NR, + .label = "GPE0", + }, + }, { + .chip = { + .base = S5PV210_GPE1(0), + .ngpio = S5PV210_GPIO_E1_NR, + .label = "GPE1", + }, + }, { + .chip = { + .base = S5PV210_GPF0(0), + .ngpio = S5PV210_GPIO_F0_NR, + .label = "GPF0", + }, + }, { + .chip = { + .base = S5PV210_GPF1(0), + .ngpio = S5PV210_GPIO_F1_NR, + .label = "GPF1", + }, + }, { + .chip = { + .base = S5PV210_GPF2(0), + .ngpio = S5PV210_GPIO_F2_NR, + .label = "GPF2", + }, + }, { + .chip = { + .base = S5PV210_GPF3(0), + .ngpio = S5PV210_GPIO_F3_NR, + .label = "GPF3", + }, + }, { + .chip = { + .base = S5PV210_GPG0(0), + .ngpio = S5PV210_GPIO_G0_NR, + .label = "GPG0", + }, + }, { + .chip = { + .base = S5PV210_GPG1(0), + .ngpio = S5PV210_GPIO_G1_NR, + .label = "GPG1", + }, + }, { + .chip = { + .base = S5PV210_GPG2(0), + .ngpio = S5PV210_GPIO_G2_NR, + .label = "GPG2", + }, + }, { + .chip = { + .base = S5PV210_GPG3(0), + .ngpio = S5PV210_GPIO_G3_NR, + .label = "GPG3", + }, + }, { + .chip = { + .base = S5PV210_GPI(0), + .ngpio = S5PV210_GPIO_I_NR, + .label = "GPI", + }, + }, { + .chip = { + .base = S5PV210_GPJ0(0), + .ngpio = S5PV210_GPIO_J0_NR, + .label = "GPJ0", + }, + }, { + .chip = { + .base = S5PV210_GPJ1(0), + .ngpio = S5PV210_GPIO_J1_NR, + .label = "GPJ1", + }, + }, { + .chip = { + .base = S5PV210_GPJ2(0), + .ngpio = S5PV210_GPIO_J2_NR, + .label = "GPJ2", + }, + }, { + .chip = { + .base = S5PV210_GPJ3(0), + .ngpio = S5PV210_GPIO_J3_NR, + .label = "GPJ3", + }, + }, { + .chip = { + .base = S5PV210_GPJ4(0), + .ngpio = S5PV210_GPIO_J4_NR, + .label = "GPJ4", + }, + }, { + .chip = { + .base = S5PV210_MP01(0), + .ngpio = S5PV210_GPIO_MP01_NR, + .label = "MP01", + }, + }, { + .chip = { + .base = S5PV210_MP02(0), + .ngpio = S5PV210_GPIO_MP02_NR, + .label = "MP02", + }, + }, { + .chip = { + .base = S5PV210_MP03(0), + .ngpio = S5PV210_GPIO_MP03_NR, + .label = "MP03", + }, + }, { + .chip = { + .base = S5PV210_MP04(0), + .ngpio = S5PV210_GPIO_MP04_NR, + .label = "MP04", + }, + }, { + .chip = { + .base = S5PV210_MP05(0), + .ngpio = S5PV210_GPIO_MP05_NR, + .label = "MP05", + }, + }, { + .base = (S5P_VA_GPIO + 0xC00), + .irq_base = IRQ_EINT(0), + .chip = { + .base = S5PV210_GPH0(0), + .ngpio = S5PV210_GPIO_H0_NR, + .label = "GPH0", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO + 0xC20), + .irq_base = IRQ_EINT(8), + .chip = { + .base = S5PV210_GPH1(0), + .ngpio = S5PV210_GPIO_H1_NR, + .label = "GPH1", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO + 0xC40), + .irq_base = IRQ_EINT(16), + .chip = { + .base = S5PV210_GPH2(0), + .ngpio = S5PV210_GPIO_H2_NR, + .label = "GPH2", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO + 0xC60), + .irq_base = IRQ_EINT(24), + .chip = { + .base = S5PV210_GPH3(0), + .ngpio = S5PV210_GPIO_H3_NR, + .label = "GPH3", + .to_irq = samsung_gpiolib_to_irq, + }, + }, +#endif +}; + +/* + * Followings are the gpio banks in EXYNOS4210 + * + * The 'config' member when left to NULL, is initialized to the default + * structure samsung_gpio_cfgs[4] in the init function below. + * + * The 'base' member is also initialized in the init function below. + * Note: The initialization of 'base' member of samsung_gpio_chip structure + * uses the above macro and depends on the banks being listed in order here. + */ + +static struct samsung_gpio_chip exynos4_gpios_1[] = { +#ifdef CONFIG_ARCH_EXYNOS4 + { + .chip = { + .base = EXYNOS4_GPA0(0), + .ngpio = EXYNOS4_GPIO_A0_NR, + .label = "GPA0", + }, + }, { + .chip = { + .base = EXYNOS4_GPA1(0), + .ngpio = EXYNOS4_GPIO_A1_NR, + .label = "GPA1", + }, + }, { + .chip = { + .base = EXYNOS4_GPB(0), + .ngpio = EXYNOS4_GPIO_B_NR, + .label = "GPB", + }, + }, { + .chip = { + .base = EXYNOS4_GPC0(0), + .ngpio = EXYNOS4_GPIO_C0_NR, + .label = "GPC0", + }, + }, { + .chip = { + .base = EXYNOS4_GPC1(0), + .ngpio = EXYNOS4_GPIO_C1_NR, + .label = "GPC1", + }, + }, { + .chip = { + .base = EXYNOS4_GPD0(0), + .ngpio = EXYNOS4_GPIO_D0_NR, + .label = "GPD0", + }, + }, { + .chip = { + .base = EXYNOS4_GPD1(0), + .ngpio = EXYNOS4_GPIO_D1_NR, + .label = "GPD1", + }, + }, { + .chip = { + .base = EXYNOS4_GPE0(0), + .ngpio = EXYNOS4_GPIO_E0_NR, + .label = "GPE0", + }, + }, { + .chip = { + .base = EXYNOS4_GPE1(0), + .ngpio = EXYNOS4_GPIO_E1_NR, + .label = "GPE1", + }, + }, { + .chip = { + .base = EXYNOS4_GPE2(0), + .ngpio = EXYNOS4_GPIO_E2_NR, + .label = "GPE2", + }, + }, { + .chip = { + .base = EXYNOS4_GPE3(0), + .ngpio = EXYNOS4_GPIO_E3_NR, + .label = "GPE3", + }, + }, { + .chip = { + .base = EXYNOS4_GPE4(0), + .ngpio = EXYNOS4_GPIO_E4_NR, + .label = "GPE4", + }, + }, { + .chip = { + .base = EXYNOS4_GPF0(0), + .ngpio = EXYNOS4_GPIO_F0_NR, + .label = "GPF0", + }, + }, { + .chip = { + .base = EXYNOS4_GPF1(0), + .ngpio = EXYNOS4_GPIO_F1_NR, + .label = "GPF1", + }, + }, { + .chip = { + .base = EXYNOS4_GPF2(0), + .ngpio = EXYNOS4_GPIO_F2_NR, + .label = "GPF2", + }, + }, { + .chip = { + .base = EXYNOS4_GPF3(0), + .ngpio = EXYNOS4_GPIO_F3_NR, + .label = "GPF3", + }, + }, +#endif +}; + +static struct samsung_gpio_chip exynos4_gpios_2[] = { +#ifdef CONFIG_ARCH_EXYNOS4 + { + .chip = { + .base = EXYNOS4_GPJ0(0), + .ngpio = EXYNOS4_GPIO_J0_NR, + .label = "GPJ0", + }, + }, { + .chip = { + .base = EXYNOS4_GPJ1(0), + .ngpio = EXYNOS4_GPIO_J1_NR, + .label = "GPJ1", + }, + }, { + .chip = { + .base = EXYNOS4_GPK0(0), + .ngpio = EXYNOS4_GPIO_K0_NR, + .label = "GPK0", + }, + }, { + .chip = { + .base = EXYNOS4_GPK1(0), + .ngpio = EXYNOS4_GPIO_K1_NR, + .label = "GPK1", + }, + }, { + .chip = { + .base = EXYNOS4_GPK2(0), + .ngpio = EXYNOS4_GPIO_K2_NR, + .label = "GPK2", + }, + }, { + .chip = { + .base = EXYNOS4_GPK3(0), + .ngpio = EXYNOS4_GPIO_K3_NR, + .label = "GPK3", + }, + }, { + .chip = { + .base = EXYNOS4_GPL0(0), + .ngpio = EXYNOS4_GPIO_L0_NR, + .label = "GPL0", + }, + }, { + .chip = { + .base = EXYNOS4_GPL1(0), + .ngpio = EXYNOS4_GPIO_L1_NR, + .label = "GPL1", + }, + }, { + .chip = { + .base = EXYNOS4_GPL2(0), + .ngpio = EXYNOS4_GPIO_L2_NR, + .label = "GPL2", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY0(0), + .ngpio = EXYNOS4_GPIO_Y0_NR, + .label = "GPY0", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY1(0), + .ngpio = EXYNOS4_GPIO_Y1_NR, + .label = "GPY1", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY2(0), + .ngpio = EXYNOS4_GPIO_Y2_NR, + .label = "GPY2", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY3(0), + .ngpio = EXYNOS4_GPIO_Y3_NR, + .label = "GPY3", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY4(0), + .ngpio = EXYNOS4_GPIO_Y4_NR, + .label = "GPY4", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY5(0), + .ngpio = EXYNOS4_GPIO_Y5_NR, + .label = "GPY5", + }, + }, { + .config = &samsung_gpio_cfgs[4], + .chip = { + .base = EXYNOS4_GPY6(0), + .ngpio = EXYNOS4_GPIO_Y6_NR, + .label = "GPY6", + }, + }, { + .base = (S5P_VA_GPIO2 + 0xC00), + .config = &samsung_gpio_cfgs[4], + .irq_base = IRQ_EINT(0), + .chip = { + .base = EXYNOS4_GPX0(0), + .ngpio = EXYNOS4_GPIO_X0_NR, + .label = "GPX0", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO2 + 0xC20), + .config = &samsung_gpio_cfgs[4], + .irq_base = IRQ_EINT(8), + .chip = { + .base = EXYNOS4_GPX1(0), + .ngpio = EXYNOS4_GPIO_X1_NR, + .label = "GPX1", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO2 + 0xC40), + .config = &samsung_gpio_cfgs[4], + .irq_base = IRQ_EINT(16), + .chip = { + .base = EXYNOS4_GPX2(0), + .ngpio = EXYNOS4_GPIO_X2_NR, + .label = "GPX2", + .to_irq = samsung_gpiolib_to_irq, + }, + }, { + .base = (S5P_VA_GPIO2 + 0xC60), + .config = &samsung_gpio_cfgs[4], + .irq_base = IRQ_EINT(24), + .chip = { + .base = EXYNOS4_GPX3(0), + .ngpio = EXYNOS4_GPIO_X3_NR, + .label = "GPX3", + .to_irq = samsung_gpiolib_to_irq, + }, + }, +#endif +}; + +static struct samsung_gpio_chip exynos4_gpios_3[] = { +#ifdef CONFIG_ARCH_EXYNOS4 + { + .chip = { + .base = EXYNOS4_GPZ(0), + .ngpio = EXYNOS4_GPIO_Z_NR, + .label = "GPZ", + }, + }, +#endif +}; + +/* TODO: cleanup soc_is_* */ +static __init int samsung_gpiolib_init(void) +{ + struct samsung_gpio_chip *chip; + int i, nr_chips; + int group = 0; + + samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs)); + + if (soc_is_s3c24xx()) { + s3c24xx_gpiolib_add_chips(s3c24xx_gpios, + ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO); + } else if (soc_is_s3c64xx()) { + samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit, + ARRAY_SIZE(s3c64xx_gpios_2bit), + S3C64XX_VA_GPIO + 0xE0, 0x20); + samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit, + ARRAY_SIZE(s3c64xx_gpios_4bit), + S3C64XX_VA_GPIO); + samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2, + ARRAY_SIZE(s3c64xx_gpios_4bit2)); + } else if (soc_is_s5p6440()) { + samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit, + ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0); + samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit, + ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO); + samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2, + ARRAY_SIZE(s5p6440_gpios_4bit2)); + s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank, + ARRAY_SIZE(s5p6440_gpios_rbank)); + } else if (soc_is_s5p6450()) { + samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit, + ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0); + samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit, + ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO); + samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2, + ARRAY_SIZE(s5p6450_gpios_4bit2)); + s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank, + ARRAY_SIZE(s5p6450_gpios_rbank)); + } else if (soc_is_s5pc100()) { + group = 0; + chip = s5pc100_gpios_4bit; + nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit); + + for (i = 0; i < nr_chips; i++, chip++) { + if (!chip->config) { + chip->config = &samsung_gpio_cfgs[4]; + chip->group = group++; + } + } + samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO); +#if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT) + s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR); +#endif + } else if (soc_is_s5pv210()) { + group = 0; + chip = s5pv210_gpios_4bit; + nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit); + + for (i = 0; i < nr_chips; i++, chip++) { + if (!chip->config) { + chip->config = &samsung_gpio_cfgs[4]; + chip->group = group++; + } + } + samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO); +#if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT) + s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR); +#endif + } else if (soc_is_exynos4210()) { + group = 0; + + /* gpio part1 */ + chip = exynos4_gpios_1; + nr_chips = ARRAY_SIZE(exynos4_gpios_1); + + for (i = 0; i < nr_chips; i++, chip++) { + if (!chip->config) { + chip->config = &exynos4_gpio_cfg; + chip->group = group++; + } + } + samsung_gpiolib_add_4bit_chips(exynos4_gpios_1, nr_chips, S5P_VA_GPIO1); + + /* gpio part2 */ + chip = exynos4_gpios_2; + nr_chips = ARRAY_SIZE(exynos4_gpios_2); + + for (i = 0; i < nr_chips; i++, chip++) { + if (!chip->config) { + chip->config = &exynos4_gpio_cfg; + chip->group = group++; + } + } + samsung_gpiolib_add_4bit_chips(exynos4_gpios_2, nr_chips, S5P_VA_GPIO2); + + /* gpio part3 */ + chip = exynos4_gpios_3; + nr_chips = ARRAY_SIZE(exynos4_gpios_3); + + for (i = 0; i < nr_chips; i++, chip++) { + if (!chip->config) { + chip->config = &exynos4_gpio_cfg; + chip->group = group++; + } + } + samsung_gpiolib_add_4bit_chips(exynos4_gpios_3, nr_chips, S5P_VA_GPIO3); + +#if defined(CONFIG_SOC_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT) + s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS); + s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS); +#endif + } + + return 0; +} +core_initcall(samsung_gpiolib_init); + +int s3c_gpio_cfgpin(unsigned int pin, unsigned int config) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned long flags; + int offset; + int ret; + + if (!chip) + return -EINVAL; + + offset = pin - chip->chip.base; + + samsung_gpio_lock(chip, flags); + ret = samsung_gpio_do_setcfg(chip, offset, config); + samsung_gpio_unlock(chip, flags); + + return ret; +} +EXPORT_SYMBOL(s3c_gpio_cfgpin); + +int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr, + unsigned int cfg) +{ + int ret; + + for (; nr > 0; nr--, start++) { + ret = s3c_gpio_cfgpin(start, cfg); + if (ret != 0) + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range); + +int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr, + unsigned int cfg, samsung_gpio_pull_t pull) +{ + int ret; + + for (; nr > 0; nr--, start++) { + s3c_gpio_setpull(start, pull); + ret = s3c_gpio_cfgpin(start, cfg); + if (ret != 0) + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range); + +unsigned s3c_gpio_getcfg(unsigned int pin) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned long flags; + unsigned ret = 0; + int offset; + + if (chip) { + offset = pin - chip->chip.base; + + samsung_gpio_lock(chip, flags); + ret = samsung_gpio_do_getcfg(chip, offset); + samsung_gpio_unlock(chip, flags); + } + + return ret; +} +EXPORT_SYMBOL(s3c_gpio_getcfg); + +int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned long flags; + int offset, ret; + + if (!chip) + return -EINVAL; + + offset = pin - chip->chip.base; + + samsung_gpio_lock(chip, flags); + ret = samsung_gpio_do_setpull(chip, offset, pull); + samsung_gpio_unlock(chip, flags); + + return ret; +} +EXPORT_SYMBOL(s3c_gpio_setpull); + +samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned long flags; + int offset; + u32 pup = 0; + + if (chip) { + offset = pin - chip->chip.base; + + samsung_gpio_lock(chip, flags); + pup = samsung_gpio_do_getpull(chip, offset); + samsung_gpio_unlock(chip, flags); + } + + return (__force samsung_gpio_pull_t)pup; +} +EXPORT_SYMBOL(s3c_gpio_getpull); + +/* gpiolib wrappers until these are totally eliminated */ + +void s3c2410_gpio_pullup(unsigned int pin, unsigned int to) +{ + int ret; + + WARN_ON(to); /* should be none of these left */ + + if (!to) { + /* if pull is enabled, try first with up, and if that + * fails, try using down */ + + ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP); + if (ret) + s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN); + } else { + s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE); + } +} +EXPORT_SYMBOL(s3c2410_gpio_pullup); + +void s3c2410_gpio_setpin(unsigned int pin, unsigned int to) +{ + /* do this via gpiolib until all users removed */ + + gpio_request(pin, "temporary"); + gpio_set_value(pin, to); + gpio_free(pin); +} +EXPORT_SYMBOL(s3c2410_gpio_setpin); + +unsigned int s3c2410_gpio_getpin(unsigned int pin) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned long offs = pin - chip->chip.base; + + return __raw_readl(chip->base + 0x04) & (1 << offs); +} +EXPORT_SYMBOL(s3c2410_gpio_getpin); + +#ifdef CONFIG_S5P_GPIO_DRVSTR +s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned int off; + void __iomem *reg; + int shift; + u32 drvstr; + + if (!chip) + return -EINVAL; + + off = pin - chip->chip.base; + shift = off * 2; + reg = chip->base + 0x0C; + + drvstr = __raw_readl(reg); + drvstr = drvstr >> shift; + drvstr &= 0x3; + + return (__force s5p_gpio_drvstr_t)drvstr; +} +EXPORT_SYMBOL(s5p_gpio_get_drvstr); + +int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr) +{ + struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin); + unsigned int off; + void __iomem *reg; + int shift; + u32 tmp; + + if (!chip) + return -EINVAL; + + off = pin - chip->chip.base; + shift = off * 2; + reg = chip->base + 0x0C; + + tmp = __raw_readl(reg); + tmp &= ~(0x3 << shift); + tmp |= drvstr << shift; + + __raw_writel(tmp, reg); + + return 0; +} +EXPORT_SYMBOL(s5p_gpio_set_drvstr); +#endif /* CONFIG_S5P_GPIO_DRVSTR */ + +#ifdef CONFIG_PLAT_S3C24XX +unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change) +{ + unsigned long flags; + unsigned long misccr; + + local_irq_save(flags); + misccr = __raw_readl(S3C24XX_MISCCR); + misccr &= ~clear; + misccr ^= change; + __raw_writel(misccr, S3C24XX_MISCCR); + local_irq_restore(flags); + + return misccr; +} +EXPORT_SYMBOL(s3c2410_modify_misccr); +#endif -- cgit v1.2.3 From d57f40544a41fdfe90fd863b6865138c5a82f1cc Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 20 Sep 2011 18:34:25 -0700 Subject: mtd: utilize `mtd_is_*()' functions Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/inftlcore.c | 4 ++-- drivers/mtd/mtdchar.c | 4 ++-- drivers/mtd/mtdconcat.c | 8 ++++---- drivers/mtd/mtdoops.c | 2 +- drivers/mtd/mtdpart.c | 8 ++++---- drivers/mtd/mtdswap.c | 20 ++++++++++---------- drivers/mtd/nand/diskonchip.c | 2 +- drivers/mtd/nand/nand_bbt.c | 4 ++-- drivers/mtd/nftlcore.c | 4 ++-- drivers/mtd/onenand/onenand_base.c | 10 +++++----- drivers/mtd/sm_ftl.c | 4 ++-- drivers/mtd/tests/mtd_pagetest.c | 28 ++++++++++++++-------------- drivers/mtd/tests/mtd_readtest.c | 2 +- drivers/mtd/tests/mtd_speedtest.c | 8 ++++---- drivers/mtd/tests/mtd_stresstest.c | 2 +- drivers/mtd/tests/mtd_subpagetest.c | 8 ++++---- drivers/mtd/tests/mtd_torturetest.c | 2 +- drivers/mtd/ubi/eba.c | 2 +- drivers/mtd/ubi/io.c | 24 ++++++++++++------------ drivers/mtd/ubi/kapi.c | 2 +- drivers/mtd/ubi/misc.c | 2 +- drivers/mtd/ubi/scan.c | 4 ++-- drivers/mtd/ubi/vtbl.c | 2 +- 23 files changed, 78 insertions(+), 78 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c index 652065e47a79..dd034efd1875 100644 --- a/drivers/mtd/inftlcore.c +++ b/drivers/mtd/inftlcore.c @@ -346,7 +346,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned ret = mtd->read(mtd, (inftl->EraseSize * BlockMap[block]) + (block * SECTORSIZE), SECTORSIZE, &retlen, movebuf); - if (ret < 0 && ret != -EUCLEAN) { + if (ret < 0 && !mtd_is_bitflip(ret)) { ret = mtd->read(mtd, (inftl->EraseSize * BlockMap[block]) + (block * SECTORSIZE), SECTORSIZE, @@ -917,7 +917,7 @@ foundit: int ret = mtd->read(mtd, ptr, SECTORSIZE, &retlen, buffer); /* Handle corrected bit flips gracefully */ - if (ret < 0 && ret != -EUCLEAN) + if (ret < 0 && !mtd_is_bitflip(ret)) return -EIO; } return 0; diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 8feb5fdcd97b..47be6e5cefe4 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -242,7 +242,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t * Userspace software which accesses NAND this way * must be aware of the fact that it deals with NAND */ - if (!ret || (ret == -EUCLEAN) || (ret == -EBADMSG)) { + if (!ret || mtd_is_bitflip_or_eccerr(ret)) { *ppos += retlen; if (copy_to_user(buf, kbuf, retlen)) { kfree(kbuf); @@ -491,7 +491,7 @@ static int mtd_do_readoob(struct file *file, struct mtd_info *mtd, * does not calculate ECC for the OOB area, so do not rely on * this behavior unless you have replaced it with your own. */ - if (ret == -EUCLEAN || ret == -EBADMSG) + if (mtd_is_bitflip_or_eccerr(ret)) return 0; return ret; diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c index d3fabd144d6c..6df4d4d4eb92 100644 --- a/drivers/mtd/mtdconcat.c +++ b/drivers/mtd/mtdconcat.c @@ -95,10 +95,10 @@ concat_read(struct mtd_info *mtd, loff_t from, size_t len, /* Save information about bitflips! */ if (unlikely(err)) { - if (err == -EBADMSG) { + if (mtd_is_eccerr(err)) { mtd->ecc_stats.failed++; ret = err; - } else if (err == -EUCLEAN) { + } else if (mtd_is_bitflip(err)) { mtd->ecc_stats.corrected++; /* Do not overwrite -EBADMSG !! */ if (!ret) @@ -279,10 +279,10 @@ concat_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) /* Save information about bitflips! */ if (unlikely(err)) { - if (err == -EBADMSG) { + if (mtd_is_eccerr(err)) { mtd->ecc_stats.failed++; ret = err; - } else if (err == -EUCLEAN) { + } else if (mtd_is_bitflip(err)) { mtd->ecc_stats.corrected++; /* Do not overwrite -EBADMSG !! */ if (!ret) diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c index e3e40f440323..1e2fa6236705 100644 --- a/drivers/mtd/mtdoops.c +++ b/drivers/mtd/mtdoops.c @@ -258,7 +258,7 @@ static void find_next_position(struct mtdoops_context *cxt) ret = mtd->read(mtd, page * record_size, MTDOOPS_HEADER_SIZE, &retlen, (u_char *) &count[0]); if (retlen != MTDOOPS_HEADER_SIZE || - (ret < 0 && ret != -EUCLEAN)) { + (ret < 0 && !mtd_is_bitflip(ret))) { printk(KERN_ERR "mtdoops: read failure at %ld (%td of %d read), err %d\n", page * record_size, retlen, MTDOOPS_HEADER_SIZE, ret); diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index cd7785aa1649..a0bd2de4752b 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -73,9 +73,9 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len, res = part->master->read(part->master, from + part->offset, len, retlen, buf); if (unlikely(res)) { - if (res == -EUCLEAN) + if (mtd_is_bitflip(res)) mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected; - if (res == -EBADMSG) + if (mtd_is_eccerr(res)) mtd->ecc_stats.failed += part->master->ecc_stats.failed - stats.failed; } return res; @@ -142,9 +142,9 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from, res = part->master->read_oob(part->master, from + part->offset, ops); if (unlikely(res)) { - if (res == -EUCLEAN) + if (mtd_is_bitflip(res)) mtd->ecc_stats.corrected++; - if (res == -EBADMSG) + if (mtd_is_eccerr(res)) mtd->ecc_stats.failed++; } return res; diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index 910309f260f8..bd9590c723e4 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -314,7 +314,7 @@ static int mtdswap_read_oob(struct mtdswap_dev *d, loff_t from, { int ret = d->mtd->read_oob(d->mtd, from, ops); - if (ret == -EUCLEAN) + if (mtd_is_bitflip(ret)) return ret; if (ret) { @@ -354,7 +354,7 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb) ret = mtdswap_read_oob(d, offset, &ops); - if (ret && ret != -EUCLEAN) + if (ret && !mtd_is_bitflip(ret)) return ret; data = (struct mtdswap_oobdata *)d->oob_buf; @@ -363,7 +363,7 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb) if (le16_to_cpu(data->magic) == MTDSWAP_MAGIC_CLEAN) { eb->erase_count = le32_to_cpu(data->count); - if (ret == -EUCLEAN) + if (mtd_is_bitflip(ret)) ret = MTDSWAP_SCANNED_BITFLIP; else { if (le16_to_cpu(data2->magic) == MTDSWAP_MAGIC_DIRTY) @@ -408,7 +408,7 @@ static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb, if (ret) { dev_warn(d->dev, "Write OOB failed for block at %08llx " "error %d\n", offset, ret); - if (ret == -EIO || ret == -EBADMSG) + if (ret == -EIO || mtd_is_eccerr(ret)) mtdswap_handle_write_error(d, eb); return ret; } @@ -628,7 +628,7 @@ static int mtdswap_map_free_block(struct mtdswap_dev *d, unsigned int page, TREE_COUNT(d, CLEAN)--; ret = mtdswap_write_marker(d, eb, MTDSWAP_TYPE_DIRTY); - } while (ret == -EIO || ret == -EBADMSG); + } while (ret == -EIO || mtd_is_eccerr(ret)); if (ret) return ret; @@ -678,7 +678,7 @@ retry: ret = mtdswap_map_free_block(d, page, bp); eb = d->eb_data + (*bp / d->pages_per_eblk); - if (ret == -EIO || ret == -EBADMSG) { + if (ret == -EIO || mtd_is_eccerr(ret)) { d->curr_write = NULL; eb->active_count--; d->revmap[*bp] = PAGE_UNDEF; @@ -690,7 +690,7 @@ retry: writepos = (loff_t)*bp << PAGE_SHIFT; ret = mtd->write(mtd, writepos, PAGE_SIZE, &retlen, buf); - if (ret == -EIO || ret == -EBADMSG) { + if (ret == -EIO || mtd_is_eccerr(ret)) { d->curr_write_pos--; eb->active_count--; d->revmap[*bp] = PAGE_UNDEF; @@ -738,7 +738,7 @@ static int mtdswap_move_block(struct mtdswap_dev *d, unsigned int oldblock, retry: ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, d->page_buf); - if (ret < 0 && ret != -EUCLEAN) { + if (ret < 0 && !mtd_is_bitflip(ret)) { oldeb = d->eb_data + oldblock / d->pages_per_eblk; oldeb->flags |= EBLOCK_READERR; @@ -1016,7 +1016,7 @@ static int mtdswap_gc(struct mtdswap_dev *d, unsigned int background) if (ret == 0) mtdswap_rb_add(d, eb, MTDSWAP_CLEAN); - else if (ret != -EIO && ret != -EBADMSG) + else if (ret != -EIO && !mtd_is_eccerr(ret)) mtdswap_rb_add(d, eb, MTDSWAP_DIRTY); return 0; @@ -1164,7 +1164,7 @@ retry: ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, buf); d->mtd_read_count++; - if (ret == -EUCLEAN) { + if (mtd_is_bitflip(ret)) { eb->flags |= EBLOCK_BITFLIP; mtdswap_rb_add(d, eb, MTDSWAP_BITFLIP); ret = 0; diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index de93a989aa54..ae8c60d604c1 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1031,7 +1031,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat, WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf); else WriteDOC(DOC_ECC_DIS, docptr, ECCConf); - if (no_ecc_failures && (ret == -EBADMSG)) { + if (no_ecc_failures && mtd_is_eccerr(ret)) { printk(KERN_ERR "suppressing ECC failure\n"); ret = 0; } diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 7dbfce4a1a5b..584bdcb3c61a 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -400,7 +400,7 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd, ret = scan_read_raw_oob(mtd, buf, offs, readlen); /* Ignore ECC errors when checking for BBM */ - if (ret && ret != -EUCLEAN && ret != -EBADMSG) + if (ret && !mtd_is_bitflip_or_eccerr(ret)) return ret; for (j = 0; j < len; j++, buf += scanlen) { @@ -430,7 +430,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, */ ret = mtd->read_oob(mtd, offs, &ops); /* Ignore ECC errors when checking for BBM */ - if (ret && ret != -EUCLEAN && ret != -EBADMSG) + if (ret && !mtd_is_bitflip_or_eccerr(ret)) return ret; if (check_short_pattern(buf, bd)) diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c index 272e3c03e324..cda77b562ad4 100644 --- a/drivers/mtd/nftlcore.c +++ b/drivers/mtd/nftlcore.c @@ -425,7 +425,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p ret = mtd->read(mtd, (nftl->EraseSize * BlockMap[block]) + (block * 512), 512, &retlen, movebuf); - if (ret < 0 && ret != -EUCLEAN) { + if (ret < 0 && !mtd_is_bitflip(ret)) { ret = mtd->read(mtd, (nftl->EraseSize * BlockMap[block]) + (block * 512), 512, &retlen, movebuf); @@ -773,7 +773,7 @@ static int nftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block, size_t retlen; int res = mtd->read(mtd, ptr, 512, &retlen, buffer); - if (res < 0 && res != -EUCLEAN) + if (res < 0 && !mtd_is_bitflip(res)) return -EIO; } return 0; diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index a52aa0f6b0c3..a8394730b4b6 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -1079,7 +1079,7 @@ static int onenand_recover_lsb(struct mtd_info *mtd, loff_t addr, int status) return status; /* check if we failed due to uncorrectable error */ - if (status != -EBADMSG && status != ONENAND_BBT_READ_ECC_ERROR) + if (!mtd_is_eccerr(status) && status != ONENAND_BBT_READ_ECC_ERROR) return status; /* check if address lies in MLC region */ @@ -1159,7 +1159,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from, if (unlikely(ret)) ret = onenand_recover_lsb(mtd, from, ret); onenand_update_bufferram(mtd, from, !ret); - if (ret == -EBADMSG) + if (mtd_is_eccerr(ret)) ret = 0; if (ret) break; @@ -1255,7 +1255,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, this->command(mtd, ONENAND_CMD_READ, from, writesize); ret = this->wait(mtd, FL_READING); onenand_update_bufferram(mtd, from, !ret); - if (ret == -EBADMSG) + if (mtd_is_eccerr(ret)) ret = 0; } } @@ -1315,7 +1315,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from, /* Now wait for load */ ret = this->wait(mtd, FL_READING); onenand_update_bufferram(mtd, from, !ret); - if (ret == -EBADMSG) + if (mtd_is_eccerr(ret)) ret = 0; } @@ -1403,7 +1403,7 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from, if (unlikely(ret)) ret = onenand_recover_lsb(mtd, from, ret); - if (ret && ret != -EBADMSG) { + if (ret && !mtd_is_eccerr(ret)) { printk(KERN_ERR "%s: read failed = 0x%x\n", __func__, ret); break; diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c index d927641cb0f5..fddb714e323c 100644 --- a/drivers/mtd/sm_ftl.c +++ b/drivers/mtd/sm_ftl.c @@ -281,7 +281,7 @@ again: ret = mtd->read_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops); /* Test for unknown errors */ - if (ret != 0 && ret != -EUCLEAN && ret != -EBADMSG) { + if (ret != 0 && !mtd_is_bitflip_or_eccerr(ret)) { dbg("read of block %d at zone %d, failed due to error (%d)", block, zone, ret); goto again; @@ -306,7 +306,7 @@ again: } /* Test ECC*/ - if (ret == -EBADMSG || + if (mtd_is_eccerr(ret) || (ftl->smallpagenand && sm_correct_sector(buffer, oob))) { dbg("read of block %d at zone %d, failed due to ECC error", diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c index 00b937e38c1d..186b14c02307 100644 --- a/drivers/mtd/tests/mtd_pagetest.c +++ b/drivers/mtd/tests/mtd_pagetest.c @@ -128,7 +128,7 @@ static int verify_eraseblock(int ebnum) for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) { /* Do a read to set the internal dataRAMs to different data */ err = mtd->read(mtd, addr0, bufsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -136,7 +136,7 @@ static int verify_eraseblock(int ebnum) return err; } err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -146,7 +146,7 @@ static int verify_eraseblock(int ebnum) memset(twopages, 0, bufsize); read = 0; err = mtd->read(mtd, addr, bufsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -164,7 +164,7 @@ static int verify_eraseblock(int ebnum) unsigned long oldnext = next; /* Do a read to set the internal dataRAMs to different data */ err = mtd->read(mtd, addr0, bufsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -172,7 +172,7 @@ static int verify_eraseblock(int ebnum) return err; } err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -182,7 +182,7 @@ static int verify_eraseblock(int ebnum) memset(twopages, 0, bufsize); read = 0; err = mtd->read(mtd, addr, bufsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != bufsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -231,7 +231,7 @@ static int crosstest(void) read = 0; addr = addrn - pgsize - pgsize; err = mtd->read(mtd, addr, pgsize, &read, pp1); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -244,7 +244,7 @@ static int crosstest(void) read = 0; addr = addrn - pgsize - pgsize - pgsize; err = mtd->read(mtd, addr, pgsize, &read, pp1); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -258,7 +258,7 @@ static int crosstest(void) addr = addr0; printk(PRINT_PREF "reading page at %#llx\n", (long long)addr); err = mtd->read(mtd, addr, pgsize, &read, pp2); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -272,7 +272,7 @@ static int crosstest(void) addr = addrn - pgsize; printk(PRINT_PREF "reading page at %#llx\n", (long long)addr); err = mtd->read(mtd, addr, pgsize, &read, pp3); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -286,7 +286,7 @@ static int crosstest(void) addr = addr0; printk(PRINT_PREF "reading page at %#llx\n", (long long)addr); err = mtd->read(mtd, addr, pgsize, &read, pp4); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -345,7 +345,7 @@ static int erasecrosstest(void) printk(PRINT_PREF "reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); err = mtd->read(mtd, addr0, pgsize, &read, readbuf); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -383,7 +383,7 @@ static int erasecrosstest(void) printk(PRINT_PREF "reading 1st page of block %d\n", ebnum); memset(readbuf, 0, pgsize); err = mtd->read(mtd, addr0, pgsize, &read, readbuf); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -439,7 +439,7 @@ static int erasetest(void) printk(PRINT_PREF "reading 1st page of block %d\n", ebnum); err = mtd->read(mtd, addr0, pgsize, &read, twopages); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index 587e1e371c6c..756045345f00 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -75,7 +75,7 @@ static int read_eraseblock_by_page(int ebnum) ops.datbuf = NULL; ops.oobbuf = oobbuf; ret = mtd->read_oob(mtd, addr, &ops); - if ((ret && ret != -EUCLEAN) || + if ((ret && !mtd_is_bitflip(ret)) || ops.oobretlen != mtd->oobsize) { printk(PRINT_PREF "error: read oob failed at " "%#llx\n", (long long)addr); diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 627d4e2466a3..79d53ee62295 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -216,7 +216,7 @@ static int read_eraseblock(int ebnum) err = mtd->read(mtd, addr, mtd->erasesize, &read, iobuf); /* Ignore corrected ECC errors */ - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != mtd->erasesize) { printk(PRINT_PREF "error: read failed at %#llx\n", addr); @@ -237,7 +237,7 @@ static int read_eraseblock_by_page(int ebnum) for (i = 0; i < pgcnt; i++) { err = mtd->read(mtd, addr, pgsize, &read, buf); /* Ignore corrected ECC errors */ - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -263,7 +263,7 @@ static int read_eraseblock_by_2pages(int ebnum) for (i = 0; i < n; i++) { err = mtd->read(mtd, addr, sz, &read, buf); /* Ignore corrected ECC errors */ - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != sz) { printk(PRINT_PREF "error: read failed at %#llx\n", @@ -278,7 +278,7 @@ static int read_eraseblock_by_2pages(int ebnum) if (pgcnt % 2) { err = mtd->read(mtd, addr, pgsize, &read, buf); /* Ignore corrected ECC errors */ - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (err || read != pgsize) { printk(PRINT_PREF "error: read failed at %#llx\n", diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c index 531625fc9259..3c9008adbe3b 100644 --- a/drivers/mtd/tests/mtd_stresstest.c +++ b/drivers/mtd/tests/mtd_stresstest.c @@ -154,7 +154,7 @@ static int do_read(void) } addr = eb * mtd->erasesize + offs; err = mtd->read(mtd, addr, len, &read, readbuf); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) err = 0; if (unlikely(err || read != len)) { printk(PRINT_PREF "error: read failed at 0x%llx\n", diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index 334eae53a3db..2b51842d08fa 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -198,7 +198,7 @@ static int verify_eraseblock(int ebnum) read = 0; err = mtd->read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { - if (err == -EUCLEAN && read == subpgsize) { + if (mtd_is_bitflip(err) && read == subpgsize) { printk(PRINT_PREF "ECC correction at %#llx\n", (long long)addr); err = 0; @@ -226,7 +226,7 @@ static int verify_eraseblock(int ebnum) read = 0; err = mtd->read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { - if (err == -EUCLEAN && read == subpgsize) { + if (mtd_is_bitflip(err) && read == subpgsize) { printk(PRINT_PREF "ECC correction at %#llx\n", (long long)addr); err = 0; @@ -264,7 +264,7 @@ static int verify_eraseblock2(int ebnum) read = 0; err = mtd->read(mtd, addr, subpgsize * k, &read, readbuf); if (unlikely(err || read != subpgsize * k)) { - if (err == -EUCLEAN && read == subpgsize * k) { + if (mtd_is_bitflip(err) && read == subpgsize * k) { printk(PRINT_PREF "ECC correction at %#llx\n", (long long)addr); err = 0; @@ -298,7 +298,7 @@ static int verify_eraseblock_ff(int ebnum) read = 0; err = mtd->read(mtd, addr, subpgsize, &read, readbuf); if (unlikely(err || read != subpgsize)) { - if (err == -EUCLEAN && read == subpgsize) { + if (mtd_is_bitflip(err) && read == subpgsize) { printk(PRINT_PREF "ECC correction at %#llx\n", (long long)addr); err = 0; diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c index 5c6c3d248901..25786ce97c8e 100644 --- a/drivers/mtd/tests/mtd_torturetest.c +++ b/drivers/mtd/tests/mtd_torturetest.c @@ -138,7 +138,7 @@ static inline int check_eraseblock(int ebnum, unsigned char *buf) retry: err = mtd->read(mtd, addr, len, &read, check_buf); - if (err == -EUCLEAN) + if (mtd_is_bitflip(err)) printk(PRINT_PREF "single bit flip occurred at EB %d " "MTD reported that it was fixed.\n", ebnum); else if (err) { diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 4be671815014..fb7f19b62d91 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -443,7 +443,7 @@ retry: if (err == UBI_IO_BITFLIPS) { scrub = 1; err = 0; - } else if (err == -EBADMSG) { + } else if (mtd_is_eccerr(err)) { if (vol->vol_type == UBI_DYNAMIC_VOLUME) goto out_unlock; scrub = 1; diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index 6ba55c235873..f20b6f22f240 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -172,9 +172,9 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset, retry: err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf); if (err) { - const char *errstr = (err == -EBADMSG) ? " (ECC error)" : ""; + const char *errstr = mtd_is_eccerr(err) ? " (ECC error)" : ""; - if (err == -EUCLEAN) { + if (mtd_is_bitflip(err)) { /* * -EUCLEAN is reported if there was a bit-flip which * was corrected, so this is harmless. @@ -205,7 +205,7 @@ retry: * all the requested data. But some buggy drivers might do * this, so we change it to -EIO. */ - if (read != len && err == -EBADMSG) { + if (read != len && mtd_is_eccerr(err)) { ubi_assert(0); err = -EIO; } @@ -469,7 +469,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum) out: mutex_unlock(&ubi->buf_mutex); - if (err == UBI_IO_BITFLIPS || err == -EBADMSG) { + if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err)) { /* * If a bit-flip or data integrity error was detected, the test * has not passed because it happened on a freshly erased @@ -760,7 +760,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum, read_err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE); if (read_err) { - if (read_err != UBI_IO_BITFLIPS && read_err != -EBADMSG) + if (read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err)) return read_err; /* @@ -776,7 +776,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum, magic = be32_to_cpu(ec_hdr->magic); if (magic != UBI_EC_HDR_MAGIC) { - if (read_err == -EBADMSG) + if (mtd_is_eccerr(read_err)) return UBI_IO_BAD_HDR_EBADMSG; /* @@ -1032,12 +1032,12 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum, p = (char *)vid_hdr - ubi->vid_hdr_shift; read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset, ubi->vid_hdr_alsize); - if (read_err && read_err != UBI_IO_BITFLIPS && read_err != -EBADMSG) + if (read_err && read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err)) return read_err; magic = be32_to_cpu(vid_hdr->magic); if (magic != UBI_VID_HDR_MAGIC) { - if (read_err == -EBADMSG) + if (mtd_is_eccerr(read_err)) return UBI_IO_BAD_HDR_EBADMSG; if (ubi_check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) { @@ -1219,7 +1219,7 @@ static int paranoid_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum) return -ENOMEM; err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE); - if (err && err != UBI_IO_BITFLIPS && err != -EBADMSG) + if (err && err != UBI_IO_BITFLIPS && !mtd_is_eccerr(err)) goto exit; crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC); @@ -1306,7 +1306,7 @@ static int paranoid_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum) p = (char *)vid_hdr - ubi->vid_hdr_shift; err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset, ubi->vid_hdr_alsize); - if (err && err != UBI_IO_BITFLIPS && err != -EBADMSG) + if (err && err != UBI_IO_BITFLIPS && !mtd_is_eccerr(err)) goto exit; crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_EC_HDR_SIZE_CRC); @@ -1358,7 +1358,7 @@ int ubi_dbg_check_write(struct ubi_device *ubi, const void *buf, int pnum, } err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf1); - if (err && err != -EUCLEAN) + if (err && !mtd_is_bitflip(err)) goto out_free; for (i = 0; i < len; i++) { @@ -1422,7 +1422,7 @@ int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len) } err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf); - if (err && err != -EUCLEAN) { + if (err && !mtd_is_bitflip(err)) { ubi_err("error %d while reading %d bytes from PEB %d:%d, " "read %zd bytes", err, len, pnum, offset, read); goto error; diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c index d39716e5b204..1a35fc5e3b40 100644 --- a/drivers/mtd/ubi/kapi.c +++ b/drivers/mtd/ubi/kapi.c @@ -410,7 +410,7 @@ int ubi_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset, return 0; err = ubi_eba_read_leb(ubi, vol, lnum, buf, offset, len, check); - if (err && err == -EBADMSG && vol->vol_type == UBI_STATIC_VOLUME) { + if (err && mtd_is_eccerr(err) && vol->vol_type == UBI_STATIC_VOLUME) { ubi_warn("mark volume %d as corrupted", vol_id); vol->corrupted = 1; } diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c index ff2a65c37f69..f6a7d7ac4b98 100644 --- a/drivers/mtd/ubi/misc.c +++ b/drivers/mtd/ubi/misc.c @@ -81,7 +81,7 @@ int ubi_check_volume(struct ubi_device *ubi, int vol_id) err = ubi_eba_read_leb(ubi, vol, i, buf, 0, size, 1); if (err) { - if (err == -EBADMSG) + if (mtd_is_eccerr(err)) err = 1; break; } diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c index a3a198f9b98d..0cb17d936b5a 100644 --- a/drivers/mtd/ubi/scan.c +++ b/drivers/mtd/ubi/scan.c @@ -395,7 +395,7 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb, } err = ubi_io_read_data(ubi, buf, pnum, 0, len); - if (err && err != UBI_IO_BITFLIPS && err != -EBADMSG) + if (err && err != UBI_IO_BITFLIPS && !mtd_is_eccerr(err)) goto out_free_buf; data_crc = be32_to_cpu(vid_hdr->data_crc); @@ -793,7 +793,7 @@ static int check_corruption(struct ubi_device *ubi, struct ubi_vid_hdr *vid_hdr, err = ubi_io_read(ubi, ubi->peb_buf1, pnum, ubi->leb_start, ubi->leb_size); - if (err == UBI_IO_BITFLIPS || err == -EBADMSG) { + if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err)) { /* * Bit-flips or integrity errors while reading the data area. * It is difficult to say for sure what type of corruption is diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c index 4b50a3029b84..9ad18da1891d 100644 --- a/drivers/mtd/ubi/vtbl.c +++ b/drivers/mtd/ubi/vtbl.c @@ -423,7 +423,7 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi, err = ubi_io_read_data(ubi, leb[seb->lnum], seb->pnum, 0, ubi->vtbl_size); - if (err == UBI_IO_BITFLIPS || err == -EBADMSG) + if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err)) /* * Scrub the PEB later. Note, -EBADMSG indicates an * uncorrectable ECC error, but we have our own CRC and -- cgit v1.2.3 From 167a8d52509a0f7d6728a79e2588b800e866c147 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 20 Sep 2011 18:35:08 -0700 Subject: mtd: nand: report ECC errors properly when reading BBT Instead of just printing a warning when encountering ECC errors, we should return a proper error status and print a more informative warning. Later, we will handle these error messages in the upper layers of the BBT scan. Note that this patch makes our check for ECC error codes a little bit more restrictive, leaving all unrecognized errors to the generic "else" clause. This shouldn't cause problems and could even be a benefit. This code is based on some findings reported by Matthieu Castet. Reported-by: Matthieu CASTET Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 584bdcb3c61a..0ed8591dbd26 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -178,7 +178,7 @@ static u32 add_marker_len(struct nand_bbt_descr *td) static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, struct nand_bbt_descr *td, int offs) { - int res, i, j, act = 0; + int res, ret = 0, i, j, act = 0; struct nand_chip *this = mtd->priv; size_t retlen, len, totlen; loff_t from; @@ -204,11 +204,18 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, } res = mtd->read(mtd, from, len, &retlen, buf); if (res < 0) { - if (retlen != len) { - pr_info("nand_bbt: error reading bad block table\n"); + if (mtd_is_eccerr(res)) { + pr_info("nand_bbt: ECC error in BBT at " + "0x%012llx\n", from & ~mtd->writesize); + return res; + } else if (mtd_is_bitflip(res)) { + pr_info("nand_bbt: corrected error in BBT at " + "0x%012llx\n", from & ~mtd->writesize); + ret = res; + } else { + pr_info("nand_bbt: error reading BBT\n"); return res; } - pr_warn("nand_bbt: ECC error while reading bad block table\n"); } /* Analyse data */ @@ -242,7 +249,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num, totlen -= len; from += len; } - return 0; + return ret; } /** -- cgit v1.2.3 From 623978de362a5faeb18d8395fa86089650642626 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 20 Sep 2011 18:35:34 -0700 Subject: mtd: nand: scrub BBT on ECC errors Now that `read_bbt()' returns ECC error codes properly, we handle those codes when checking the integrity of our flash-based BBT. The modifications can be described by this new policy: *) On any uncorrected ECC error, we invalidate the corresponding table and retry our version-checking integrity logic. *) On corrected bitflips, we mark both tables for re-writing to flash (a.k.a. scrubbing). Current integrity checks (i.e., comparing version numbers, etc.) should take care of all the cases that result in rescanning the device for bad blocks or falling back to the BBT as found in the mirror descriptor. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 0ed8591dbd26..11185aa6273c 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -882,7 +882,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b */ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd) { - int i, chips, writeops, create, chipsel, res; + int i, chips, writeops, create, chipsel, res, res2; struct nand_chip *this = mtd->priv; struct nand_bbt_descr *td = this->bbt_td; struct nand_bbt_descr *md = this->bbt_md; @@ -899,6 +899,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc create = 0; rd = NULL; rd2 = NULL; + res = res2 = 0; /* Per chip or per device? */ chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1; /* Mirrored table available? */ @@ -951,11 +952,29 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc } /* Read back first? */ - if (rd) - read_abs_bbt(mtd, buf, rd, chipsel); + if (rd) { + res = read_abs_bbt(mtd, buf, rd, chipsel); + if (mtd_is_eccerr(res)) { + /* Mark table as invalid */ + rd->pages[i] = -1; + i--; + continue; + } + } /* If they weren't versioned, read both */ - if (rd2) - read_abs_bbt(mtd, buf, rd2, chipsel); + if (rd2) { + res2 = read_abs_bbt(mtd, buf, rd2, chipsel); + if (mtd_is_eccerr(res2)) { + /* Mark table as invalid */ + rd2->pages[i] = -1; + i--; + continue; + } + } + + /* Scrub the flash table(s)? */ + if (mtd_is_bitflip(res) || mtd_is_bitflip(res2)) + writeops = 0x03; /* Write the bad block table to the device? */ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { -- cgit v1.2.3 From dadc17a3e34810ed411a62e6b4cafdf3e5e1d5c8 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 20 Sep 2011 18:35:57 -0700 Subject: mtd: nand: wait to set BBT version Because there are so many cases of checking, writing, and re-writing of the bad block table(s), we might as well wait until the we've settled on a valid, clean copy of the table. This also prevents us from falsely incrementing the table version. For example, we may have the following: Primary table, with version 0x02 Mirror table, with version 0x01 Primary table has uncorrectable ECC errors If we don't have this fix applied, then we will: Choose to read the primary table (higher version) Set mirror table version to 0x02 Read back primary table Invalidate table because of ECC errors Retry readback operation with mirror table, now version 0x02 Mirrored table reads cleanly Writeback BBT to primary table location (with "version 0x02") However, the mirrored table shouldn't have a new version number. Instead, we actually want: Choose to read the primary table (higher version) Read back primary table Invalidate table because of ECC errors Retry readback with mirror table (version 0x01) Mirrored table reads cleanly Set both tables to version 0x01 Writeback BBT to primary table location (version 0x01) Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 11185aa6273c..e7976c7a7bb0 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -909,11 +909,9 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc writeops = 0x03; } else if (td->pages[i] == -1) { rd = md; - td->version[i] = md->version[i]; writeops = 0x01; } else if (md->pages[i] == -1) { rd = td; - md->version[i] = td->version[i]; writeops = 0x02; } else if (td->version[i] == md->version[i]) { rd = td; @@ -921,11 +919,9 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc rd2 = md; } else if (((int8_t)(td->version[i] - md->version[i])) > 0) { rd = td; - md->version[i] = td->version[i]; writeops = 0x02; } else { rd = md; - td->version[i] = md->version[i]; writeops = 0x01; } } else { @@ -957,6 +953,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc if (mtd_is_eccerr(res)) { /* Mark table as invalid */ rd->pages[i] = -1; + rd->version[i] = 0; i--; continue; } @@ -967,6 +964,7 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc if (mtd_is_eccerr(res2)) { /* Mark table as invalid */ rd2->pages[i] = -1; + rd2->version[i] = 0; i--; continue; } @@ -976,6 +974,12 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc if (mtd_is_bitflip(res) || mtd_is_bitflip(res2)) writeops = 0x03; + /* Update version numbers before writing */ + if (md) { + td->version[i] = max(td->version[i], md->version[i]); + md->version[i] = td->version[i]; + } + /* Write the bad block table to the device? */ if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) { res = write_bbt(mtd, buf, td, md, chipsel); -- cgit v1.2.3 From 752ed6c5f8c0ee182219ff8682f5a98e47ee866f Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Tue, 20 Sep 2011 18:36:42 -0700 Subject: mtd: nand: do not scan bad blocks with NAND_BBT_NO_OOB set Updates to our default function for creating bad block patterns have broken the "no OOB" feature. The NAND_BBT_NO_OOB option should not be set while scanning for bad blocks, but we've been passing all BBT options from nand_chip.bbt_options to the bad block scan. This causes us to hit the: BUG_ON(bd->options & NAND_BBT_NO_OOB); in create_bbt() when we scan the flash for bad blocks. Thus, while it can be legal to set NAND_BBT_NO_OOB in a custom badblock pattern descriptor (presumably with NAND_BBT_CREATE disabled?), we should not pass it through in our default function. Also, to help clarify and emphasize that the function creates bad block patterns only (not, for example, table descriptors for locating flash-based BBT), I renamed `nand_create_default_bbt_descr' to `nand_create_badblock_pattern'. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index e7976c7a7bb0..783093d1a2e5 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -1294,26 +1294,27 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = { .pattern = mirror_pattern }; +#define BADBLOCK_SCAN_MASK (~NAND_BBT_NO_OOB) /** - * nand_create_default_bbt_descr - [INTERN] Creates a BBT descriptor structure + * nand_create_badblock_pattern - [INTERN] Creates a BBT descriptor structure * @this: NAND chip to create descriptor for * * This function allocates and initializes a nand_bbt_descr for BBM detection - * based on the properties of "this". The new descriptor is stored in + * based on the properties of @this. The new descriptor is stored in * this->badblock_pattern. Thus, this->badblock_pattern should be NULL when * passed to this function. */ -static int nand_create_default_bbt_descr(struct nand_chip *this) +static int nand_create_badblock_pattern(struct nand_chip *this) { struct nand_bbt_descr *bd; if (this->badblock_pattern) { - pr_warn("BBT descr already allocated; not replacing\n"); + pr_warn("Bad block pattern already allocated; not replacing\n"); return -EINVAL; } bd = kzalloc(sizeof(*bd), GFP_KERNEL); if (!bd) return -ENOMEM; - bd->options = this->bbt_options; + bd->options = this->bbt_options & BADBLOCK_SCAN_MASK; bd->offs = this->badblockpos; bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1; bd->pattern = scan_ff_pattern; @@ -1367,7 +1368,7 @@ int nand_default_bbt(struct mtd_info *mtd) } if (!this->badblock_pattern) - nand_create_default_bbt_descr(this); + nand_create_badblock_pattern(this); return nand_scan_bbt(mtd, this->badblock_pattern); } -- cgit v1.2.3 From 6d77b9d0af57409c918ab9501866233082546ba6 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:40 -0700 Subject: mtd: nand: invalidate cache on unaligned reads In rare cases, we are given an unaligned parameter `from' in `nand_do_read_ops()'. In such cases, we use the page cache (chip->buffers->databuf) as an intermediate buffer before dumping to the client buffer. However, there are also cases where this buffer is not cleanly reusable. In those cases, we need to make sure that we explicitly invalidate the cache. This patch prevents accidental reusage of the page cache, and for me, this solves some problems I come across when reading a corrupted BBT from flash (NAND_BBT_USE_FLASH and NAND_BBT_NO_OOB). Note: the rare "unaligned" case is a result of the extra BBT pattern + version located in the data area instead of OOB. Also, this patch disables caching on raw reads, since we are reading without error correction. This is, obviously, prone to errors and should not be cached. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index c9767b511dfe..51653d9e1438 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -1479,14 +1479,22 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from, else ret = chip->ecc.read_page(mtd, chip, bufpoi, page); - if (ret < 0) + if (ret < 0) { + if (!aligned) + /* Invalidate page cache */ + chip->pagebuf = -1; break; + } /* Transfer not aligned data */ if (!aligned) { if (!NAND_SUBPAGE_READ(chip) && !oob && - !(mtd->ecc_stats.failed - stats.failed)) + !(mtd->ecc_stats.failed - stats.failed) && + (ops->mode != MTD_OPS_RAW)) chip->pagebuf = realpage; + else + /* Invalidate page cache */ + chip->pagebuf = -1; memcpy(buf, chip->buffers->databuf + col, bytes); } -- cgit v1.2.3 From 75b66d8ccd5772b00a7328c2cf75bc506ec532a1 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Wed, 7 Sep 2011 13:13:41 -0700 Subject: mtd: nand: switch `check_pattern()' to standard `memcmp()' A portion of the `check_pattern()' function is basically a `memcmp()'. Since it's possible for `memcmp()' to be optimized for a particular architecture, we should use it instead. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_bbt.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 783093d1a2e5..5c9c0b2f09d4 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -107,10 +107,8 @@ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_desc p += end; /* Compare the pattern */ - for (i = 0; i < td->len; i++) { - if (p[i] != td->pattern[i]) - return -1; - } + if (memcmp(p, td->pattern, td->len)) + return -1; if (td->options & NAND_BBT_SCANEMPTY) { p += td->len; -- cgit v1.2.3 From 5a3a76e6c35fa236fc234d17a98edeb41d49130f Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 21 Sep 2011 10:02:13 +0200 Subject: drivers/block/cpqarray.c: use pci_dev->revision This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it wasn't converted by commit 44c10138fd4bbc4b6 ("PCI: Change all drivers to use pci_device->revision"). Signed-off-by: Sergei Shtylyov Acked-by: Mike Miller Cc: Chirag Kantharia Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/cpqarray.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index b2fceb53e809..9125bbeacd4d 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -620,6 +620,7 @@ static int cpqarray_pci_init(ctlr_info_t *c, struct pci_dev *pdev) } vendor_id = pdev->vendor; device_id = pdev->device; + revision = pdev->revision; irq = pdev->irq; for(i=0; i<6; i++) @@ -632,7 +633,6 @@ static int cpqarray_pci_init(ctlr_info_t *c, struct pci_dev *pdev) } pci_read_config_word(pdev, PCI_COMMAND, &command); - pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision); pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache_line_size); pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &latency_timer); -- cgit v1.2.3 From 8a9c594422ecad912d6470888acdee9a1236ad68 Mon Sep 17 00:00:00 2001 From: Phillip Susi Date: Wed, 21 Sep 2011 10:02:13 +0200 Subject: drivers/block/loop.c: emit uevent on auto release The loopback driver failed to emit the change uevent when auto releasing the device. Fixed lo_release() to pass the bdev to loop_clr_fd() so it can emit the event. Signed-off-by: Phillip Susi Cc: Jens Axboe Cc: Ayan George Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/loop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/loop.c b/drivers/block/loop.c index b336433f8157..c2ce03cf3a58 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1583,7 +1583,7 @@ static int lo_release(struct gendisk *disk, fmode_t mode) * In autoclear mode, stop the loop thread * and remove configuration after last close. */ - err = loop_clr_fd(lo, NULL); + err = loop_clr_fd(lo, lo->lo_device); if (!err) goto out_unlocked; } else { -- cgit v1.2.3 From 4c823cc3d568277aa6340d8df6981e34f4c4dee5 Mon Sep 17 00:00:00 2001 From: Ayan George Date: Wed, 21 Sep 2011 10:02:13 +0200 Subject: drivers/block/loop.c: remove unnecessary bdev argument from loop_clr_fd() If the loop device is associated (lo->lo_state == Lo_bound), it will have a valid bdev pointed to by lo->lo_device. There is no reason to ever pass an additional block_device pointer. Signed-off-by: Ayan George Cc: Phillip Susi Cc: Jens Axboe Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/loop.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/block/loop.c b/drivers/block/loop.c index c2ce03cf3a58..9b2f5d3c19ab 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1051,10 +1051,11 @@ loop_init_xfer(struct loop_device *lo, struct loop_func_table *xfer, return err; } -static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev) +static int loop_clr_fd(struct loop_device *lo) { struct file *filp = lo->lo_backing_file; gfp_t gfp = lo->old_gfp_mask; + struct block_device *bdev = lo->lo_device; if (lo->lo_state != Lo_bound) return -ENXIO; @@ -1372,7 +1373,7 @@ static int lo_ioctl(struct block_device *bdev, fmode_t mode, break; case LOOP_CLR_FD: /* loop_clr_fd would have unlocked lo_ctl_mutex on success */ - err = loop_clr_fd(lo, bdev); + err = loop_clr_fd(lo); if (!err) goto out_unlocked; break; @@ -1583,7 +1584,7 @@ static int lo_release(struct gendisk *disk, fmode_t mode) * In autoclear mode, stop the loop thread * and remove configuration after last close. */ - err = loop_clr_fd(lo, lo->lo_device); + err = loop_clr_fd(lo); if (!err) goto out_unlocked; } else { -- cgit v1.2.3 From c68308dd50c3827a4ce77a1d70e0eb2d2521cafd Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Wed, 21 Sep 2011 12:49:20 +0200 Subject: gpio: move mpc8xxx/512x gpio driver to drivers/gpio Move the driver to the place where it is expected to be nowadays. Also rename its CONFIG-name to match the rest and adapt the defconfigs. Finally, move selection of REQUIRE_GPIOLIB or WANTS_OPTIONAL_GPIOLIB to the platforms, because this option is per-platform and not per-driver. Signed-off-by: Wolfram Sang Cc: Anatolij Gustschin Cc: Grant Likely Cc: Benjamin Herrenschmidt Acked-by: Grant Likely Signed-off-by: Anatolij Gustschin --- drivers/gpio/Kconfig | 8 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-mpc8xxx.c | 395 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 404 insertions(+) create mode 100644 drivers/gpio/gpio-mpc8xxx.c (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index d539efd96d4b..4744cf246d4a 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -103,6 +103,14 @@ config GPIO_MPC5200 def_bool y depends on PPC_MPC52xx +config GPIO_MPC8XXX + bool "MPC512x/MPC8xxx GPIO support" + depends on PPC_MPC512x || PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || \ + FSL_SOC_BOOKE || PPC_86xx + help + Say Y here if you're going to use hardware that connects to the + MPC512x/831x/834x/837x/8572/8610 GPIOs. + config GPIO_MSM_V1 tristate "Qualcomm MSM GPIO v1" depends on GPIOLIB && ARCH_MSM diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 9588948c96f0..828bba9883c3 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_GPIO_MC33880) += gpio-mc33880.o obj-$(CONFIG_GPIO_MCP23S08) += gpio-mcp23s08.o obj-$(CONFIG_GPIO_ML_IOH) += gpio-ml-ioh.o obj-$(CONFIG_GPIO_MPC5200) += gpio-mpc5200.o +obj-$(CONFIG_GPIO_MPC8XXX) += gpio-mpc8xxx.o obj-$(CONFIG_GPIO_MSM_V1) += gpio-msm-v1.o obj-$(CONFIG_GPIO_MSM_V2) += gpio-msm-v2.o obj-$(CONFIG_GPIO_MXC) += gpio-mxc.o diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c new file mode 100644 index 000000000000..fb4963abdf55 --- /dev/null +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -0,0 +1,395 @@ +/* + * GPIOs on MPC512x/8349/8572/8610 and compatible + * + * Copyright (C) 2008 Peter Korsgaard + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MPC8XXX_GPIO_PINS 32 + +#define GPIO_DIR 0x00 +#define GPIO_ODR 0x04 +#define GPIO_DAT 0x08 +#define GPIO_IER 0x0c +#define GPIO_IMR 0x10 +#define GPIO_ICR 0x14 +#define GPIO_ICR2 0x18 + +struct mpc8xxx_gpio_chip { + struct of_mm_gpio_chip mm_gc; + spinlock_t lock; + + /* + * shadowed data register to be able to clear/set output pins in + * open drain mode safely + */ + u32 data; + struct irq_host *irq; + void *of_dev_id_data; +}; + +static inline u32 mpc8xxx_gpio2mask(unsigned int gpio) +{ + return 1u << (MPC8XXX_GPIO_PINS - 1 - gpio); +} + +static inline struct mpc8xxx_gpio_chip * +to_mpc8xxx_gpio_chip(struct of_mm_gpio_chip *mm) +{ + return container_of(mm, struct mpc8xxx_gpio_chip, mm_gc); +} + +static void mpc8xxx_gpio_save_regs(struct of_mm_gpio_chip *mm) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + + mpc8xxx_gc->data = in_be32(mm->regs + GPIO_DAT); +} + +/* Workaround GPIO 1 errata on MPC8572/MPC8536. The status of GPIOs + * defined as output cannot be determined by reading GPDAT register, + * so we use shadow data register instead. The status of input pins + * is determined by reading GPDAT register. + */ +static int mpc8572_gpio_get(struct gpio_chip *gc, unsigned int gpio) +{ + u32 val; + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + + val = in_be32(mm->regs + GPIO_DAT) & ~in_be32(mm->regs + GPIO_DIR); + + return (val | mpc8xxx_gc->data) & mpc8xxx_gpio2mask(gpio); +} + +static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + + return in_be32(mm->regs + GPIO_DAT) & mpc8xxx_gpio2mask(gpio); +} + +static void mpc8xxx_gpio_set(struct gpio_chip *gc, unsigned int gpio, int val) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + unsigned long flags; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + if (val) + mpc8xxx_gc->data |= mpc8xxx_gpio2mask(gpio); + else + mpc8xxx_gc->data &= ~mpc8xxx_gpio2mask(gpio); + + out_be32(mm->regs + GPIO_DAT, mpc8xxx_gc->data); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + +static int mpc8xxx_gpio_dir_in(struct gpio_chip *gc, unsigned int gpio) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + unsigned long flags; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + clrbits32(mm->regs + GPIO_DIR, mpc8xxx_gpio2mask(gpio)); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + + return 0; +} + +static int mpc8xxx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + unsigned long flags; + + mpc8xxx_gpio_set(gc, gpio, val); + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + setbits32(mm->regs + GPIO_DIR, mpc8xxx_gpio2mask(gpio)); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + + return 0; +} + +static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + + if (mpc8xxx_gc->irq && offset < MPC8XXX_GPIO_PINS) + return irq_create_mapping(mpc8xxx_gc->irq, offset); + else + return -ENXIO; +} + +static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_desc_get_handler_data(desc); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned int mask; + + mask = in_be32(mm->regs + GPIO_IER) & in_be32(mm->regs + GPIO_IMR); + if (mask) + generic_handle_irq(irq_linear_revmap(mpc8xxx_gc->irq, + 32 - ffs(mask))); +} + +static void mpc8xxx_irq_unmask(struct irq_data *d) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_data_get_irq_chip_data(d); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long flags; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + setbits32(mm->regs + GPIO_IMR, mpc8xxx_gpio2mask(irqd_to_hwirq(d))); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + +static void mpc8xxx_irq_mask(struct irq_data *d) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_data_get_irq_chip_data(d); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long flags; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + clrbits32(mm->regs + GPIO_IMR, mpc8xxx_gpio2mask(irqd_to_hwirq(d))); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + +static void mpc8xxx_irq_ack(struct irq_data *d) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_data_get_irq_chip_data(d); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + + out_be32(mm->regs + GPIO_IER, mpc8xxx_gpio2mask(irqd_to_hwirq(d))); +} + +static int mpc8xxx_irq_set_type(struct irq_data *d, unsigned int flow_type) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_data_get_irq_chip_data(d); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long flags; + + switch (flow_type) { + case IRQ_TYPE_EDGE_FALLING: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + setbits32(mm->regs + GPIO_ICR, + mpc8xxx_gpio2mask(irqd_to_hwirq(d))); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + case IRQ_TYPE_EDGE_BOTH: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + clrbits32(mm->regs + GPIO_ICR, + mpc8xxx_gpio2mask(irqd_to_hwirq(d))); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static int mpc512x_irq_set_type(struct irq_data *d, unsigned int flow_type) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = irq_data_get_irq_chip_data(d); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long gpio = irqd_to_hwirq(d); + void __iomem *reg; + unsigned int shift; + unsigned long flags; + + if (gpio < 16) { + reg = mm->regs + GPIO_ICR; + shift = (15 - gpio) * 2; + } else { + reg = mm->regs + GPIO_ICR2; + shift = (15 - (gpio % 16)) * 2; + } + + switch (flow_type) { + case IRQ_TYPE_EDGE_FALLING: + case IRQ_TYPE_LEVEL_LOW: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + clrsetbits_be32(reg, 3 << shift, 2 << shift); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + case IRQ_TYPE_EDGE_RISING: + case IRQ_TYPE_LEVEL_HIGH: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + clrsetbits_be32(reg, 3 << shift, 1 << shift); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + case IRQ_TYPE_EDGE_BOTH: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + clrbits32(reg, 3 << shift); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static struct irq_chip mpc8xxx_irq_chip = { + .name = "mpc8xxx-gpio", + .irq_unmask = mpc8xxx_irq_unmask, + .irq_mask = mpc8xxx_irq_mask, + .irq_ack = mpc8xxx_irq_ack, + .irq_set_type = mpc8xxx_irq_set_type, +}; + +static int mpc8xxx_gpio_irq_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = h->host_data; + + if (mpc8xxx_gc->of_dev_id_data) + mpc8xxx_irq_chip.irq_set_type = mpc8xxx_gc->of_dev_id_data; + + irq_set_chip_data(virq, h->host_data); + irq_set_chip_and_handler(virq, &mpc8xxx_irq_chip, handle_level_irq); + irq_set_irq_type(virq, IRQ_TYPE_NONE); + + return 0; +} + +static int mpc8xxx_gpio_irq_xlate(struct irq_host *h, struct device_node *ct, + const u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, + unsigned int *out_flags) + +{ + /* interrupt sense values coming from the device tree equal either + * EDGE_FALLING or EDGE_BOTH + */ + *out_hwirq = intspec[0]; + *out_flags = intspec[1]; + + return 0; +} + +static struct irq_host_ops mpc8xxx_gpio_irq_ops = { + .map = mpc8xxx_gpio_irq_map, + .xlate = mpc8xxx_gpio_irq_xlate, +}; + +static struct of_device_id mpc8xxx_gpio_ids[] __initdata = { + { .compatible = "fsl,mpc8349-gpio", }, + { .compatible = "fsl,mpc8572-gpio", }, + { .compatible = "fsl,mpc8610-gpio", }, + { .compatible = "fsl,mpc5121-gpio", .data = mpc512x_irq_set_type, }, + { .compatible = "fsl,qoriq-gpio", }, + {} +}; + +static void __init mpc8xxx_add_controller(struct device_node *np) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc; + struct of_mm_gpio_chip *mm_gc; + struct gpio_chip *gc; + const struct of_device_id *id; + unsigned hwirq; + int ret; + + mpc8xxx_gc = kzalloc(sizeof(*mpc8xxx_gc), GFP_KERNEL); + if (!mpc8xxx_gc) { + ret = -ENOMEM; + goto err; + } + + spin_lock_init(&mpc8xxx_gc->lock); + + mm_gc = &mpc8xxx_gc->mm_gc; + gc = &mm_gc->gc; + + mm_gc->save_regs = mpc8xxx_gpio_save_regs; + gc->ngpio = MPC8XXX_GPIO_PINS; + gc->direction_input = mpc8xxx_gpio_dir_in; + gc->direction_output = mpc8xxx_gpio_dir_out; + if (of_device_is_compatible(np, "fsl,mpc8572-gpio")) + gc->get = mpc8572_gpio_get; + else + gc->get = mpc8xxx_gpio_get; + gc->set = mpc8xxx_gpio_set; + gc->to_irq = mpc8xxx_gpio_to_irq; + + ret = of_mm_gpiochip_add(np, mm_gc); + if (ret) + goto err; + + hwirq = irq_of_parse_and_map(np, 0); + if (hwirq == NO_IRQ) + goto skip_irq; + + mpc8xxx_gc->irq = + irq_alloc_host(np, IRQ_HOST_MAP_LINEAR, MPC8XXX_GPIO_PINS, + &mpc8xxx_gpio_irq_ops, MPC8XXX_GPIO_PINS); + if (!mpc8xxx_gc->irq) + goto skip_irq; + + id = of_match_node(mpc8xxx_gpio_ids, np); + if (id) + mpc8xxx_gc->of_dev_id_data = id->data; + + mpc8xxx_gc->irq->host_data = mpc8xxx_gc; + + /* ack and mask all irqs */ + out_be32(mm_gc->regs + GPIO_IER, 0xffffffff); + out_be32(mm_gc->regs + GPIO_IMR, 0); + + irq_set_handler_data(hwirq, mpc8xxx_gc); + irq_set_chained_handler(hwirq, mpc8xxx_gpio_irq_cascade); + +skip_irq: + return; + +err: + pr_err("%s: registration failed with status %d\n", + np->full_name, ret); + kfree(mpc8xxx_gc); + + return; +} + +static int __init mpc8xxx_add_gpiochips(void) +{ + struct device_node *np; + + for_each_matching_node(np, mpc8xxx_gpio_ids) + mpc8xxx_add_controller(np); + + return 0; +} +arch_initcall(mpc8xxx_add_gpiochips); -- cgit v1.2.3 From 5172ac1c6d2c1e631bc39ddf2d9334e05f69b022 Mon Sep 17 00:00:00 2001 From: Wolfram Stering Date: Fri, 23 Sep 2011 13:53:44 +0200 Subject: mtd: mxc_nand: preset_v1_v2: unlock all NAND flash blocks For NFC v1, the unlock end block address was 0x4000, which would only unlock the first 32 blocks of the NAND flash. Change that value to 0xffff to unlock all available blocks, as is done for NFC v21 as well. Signed-off-by: Michael Thalmeier Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/mxc_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index 4d4c67763cb0..74a43b818d0e 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -845,7 +845,7 @@ static void preset_v1_v2(struct mtd_info *mtd) writew(0xffff, NFC_V21_UNLOCKEND_BLKADDR3); } else if (nfc_is_v1()) { writew(0x0, NFC_V1_UNLOCKSTART_BLKADDR); - writew(0x4000, NFC_V1_UNLOCKEND_BLKADDR); + writew(0xffff, NFC_V1_UNLOCKEND_BLKADDR); } else BUG(); -- cgit v1.2.3 From ada766e959f1040311e05b11dd04921f4c29d5cc Mon Sep 17 00:00:00 2001 From: Mikhail Kshevetskiy Date: Fri, 23 Sep 2011 19:36:18 +0400 Subject: mtd: m25p80: add support for at25df321a spi data flash Signed-off-by: Mikhail Kshevetskiy Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index e6ba034c45bc..60177fe19582 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -655,6 +655,7 @@ static const struct spi_device_id m25p_ids[] = { { "at25fs040", INFO(0x1f6604, 0, 64 * 1024, 8, SECT_4K) }, { "at25df041a", INFO(0x1f4401, 0, 64 * 1024, 8, SECT_4K) }, + { "at25df321a", INFO(0x1f4701, 0, 64 * 1024, 64, SECT_4K) }, { "at25df641", INFO(0x1f4800, 0, 64 * 1024, 128, SECT_4K) }, { "at26f004", INFO(0x1f0400, 0, 64 * 1024, 8, SECT_4K) }, -- cgit v1.2.3 From b4dae6e1adaedc9c343b5f00332312d649600bdc Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Sun, 25 Sep 2011 16:12:18 +0200 Subject: dmaengine: shdma: protect against the IRQ handler The IRQ handler of the shdma driver accesses common hardware registers, that are also accessed from other contexts. Therefore access to them has to be performed with interrupts disabled, not only with disabled bottom halves. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Vinod Koul --- drivers/dma/shdma.c | 55 +++++++++++++++++++++++++++-------------------------- 1 file changed, 28 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c index 7f49235d14b9..e7bb7479b187 100644 --- a/drivers/dma/shdma.c +++ b/drivers/dma/shdma.c @@ -265,8 +265,9 @@ static dma_cookie_t sh_dmae_tx_submit(struct dma_async_tx_descriptor *tx) struct sh_dmae_chan *sh_chan = to_sh_chan(tx->chan); dma_async_tx_callback callback = tx->callback; dma_cookie_t cookie; + unsigned long flags; - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irqsave(&sh_chan->desc_lock, flags); cookie = sh_chan->common.cookie; cookie++; @@ -302,7 +303,7 @@ static dma_cookie_t sh_dmae_tx_submit(struct dma_async_tx_descriptor *tx) tx->cookie, &last->async_tx, sh_chan->id, desc->hw.sar, desc->hw.tcr, desc->hw.dar); - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irqrestore(&sh_chan->desc_lock, flags); return cookie; } @@ -374,24 +375,18 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan) dmae_init(sh_chan); } - spin_lock_bh(&sh_chan->desc_lock); while (sh_chan->descs_allocated < NR_DESCS_PER_CHANNEL) { - spin_unlock_bh(&sh_chan->desc_lock); desc = kzalloc(sizeof(struct sh_desc), GFP_KERNEL); - if (!desc) { - spin_lock_bh(&sh_chan->desc_lock); + if (!desc) break; - } dma_async_tx_descriptor_init(&desc->async_tx, &sh_chan->common); desc->async_tx.tx_submit = sh_dmae_tx_submit; desc->mark = DESC_IDLE; - spin_lock_bh(&sh_chan->desc_lock); list_add(&desc->node, &sh_chan->ld_free); sh_chan->descs_allocated++; } - spin_unlock_bh(&sh_chan->desc_lock); if (!sh_chan->descs_allocated) { ret = -ENOMEM; @@ -405,6 +400,7 @@ edescalloc: clear_bit(param->slave_id, sh_dmae_slave_used); etestused: efindslave: + chan->private = NULL; pm_runtime_put(sh_chan->dev); return ret; } @@ -437,12 +433,12 @@ static void sh_dmae_free_chan_resources(struct dma_chan *chan) chan->private = NULL; } - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irq(&sh_chan->desc_lock); list_splice_init(&sh_chan->ld_free, &list); sh_chan->descs_allocated = 0; - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irq(&sh_chan->desc_lock); if (descs > 0) pm_runtime_put(sh_chan->dev); @@ -534,6 +530,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_sg(struct sh_dmae_chan *sh_c struct sh_desc *first = NULL, *new = NULL /* compiler... */; LIST_HEAD(tx_list); int chunks = 0; + unsigned long irq_flags; int i; if (!sg_len) @@ -544,7 +541,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_sg(struct sh_dmae_chan *sh_c (SH_DMA_TCR_MAX + 1); /* Have to lock the whole loop to protect against concurrent release */ - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irqsave(&sh_chan->desc_lock, irq_flags); /* * Chaining: @@ -590,7 +587,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_sg(struct sh_dmae_chan *sh_c /* Put them back on the free list, so, they don't get lost */ list_splice_tail(&tx_list, &sh_chan->ld_free); - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irqrestore(&sh_chan->desc_lock, irq_flags); return &first->async_tx; @@ -599,7 +596,7 @@ err_get_desc: new->mark = DESC_IDLE; list_splice(&tx_list, &sh_chan->ld_free); - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irqrestore(&sh_chan->desc_lock, irq_flags); return NULL; } @@ -661,6 +658,7 @@ static int sh_dmae_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, unsigned long arg) { struct sh_dmae_chan *sh_chan = to_sh_chan(chan); + unsigned long flags; /* Only supports DMA_TERMINATE_ALL */ if (cmd != DMA_TERMINATE_ALL) @@ -669,7 +667,7 @@ static int sh_dmae_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, if (!chan) return -EINVAL; - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irqsave(&sh_chan->desc_lock, flags); dmae_halt(sh_chan); if (!list_empty(&sh_chan->ld_queue)) { @@ -680,7 +678,7 @@ static int sh_dmae_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, sh_chan->xmit_shift; } - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irqrestore(&sh_chan->desc_lock, flags); sh_dmae_chan_ld_cleanup(sh_chan, true); @@ -695,8 +693,9 @@ static dma_async_tx_callback __ld_cleanup(struct sh_dmae_chan *sh_chan, bool all dma_cookie_t cookie = 0; dma_async_tx_callback callback = NULL; void *param = NULL; + unsigned long flags; - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irqsave(&sh_chan->desc_lock, flags); list_for_each_entry_safe(desc, _desc, &sh_chan->ld_queue, node) { struct dma_async_tx_descriptor *tx = &desc->async_tx; @@ -773,7 +772,7 @@ static dma_async_tx_callback __ld_cleanup(struct sh_dmae_chan *sh_chan, bool all */ sh_chan->completed_cookie = sh_chan->common.cookie; - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irqrestore(&sh_chan->desc_lock, flags); if (callback) callback(param); @@ -796,10 +795,12 @@ static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan) { struct sh_desc *desc; - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irq(&sh_chan->desc_lock); /* DMA work check */ - if (dmae_is_busy(sh_chan)) - goto sh_chan_xfer_ld_queue_end; + if (dmae_is_busy(sh_chan)) { + spin_unlock_irq(&sh_chan->desc_lock); + return; + } /* Find the first not transferred descriptor */ list_for_each_entry(desc, &sh_chan->ld_queue, node) @@ -813,8 +814,7 @@ static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan) break; } -sh_chan_xfer_ld_queue_end: - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irq(&sh_chan->desc_lock); } static void sh_dmae_memcpy_issue_pending(struct dma_chan *chan) @@ -831,6 +831,7 @@ static enum dma_status sh_dmae_tx_status(struct dma_chan *chan, dma_cookie_t last_used; dma_cookie_t last_complete; enum dma_status status; + unsigned long flags; sh_dmae_chan_ld_cleanup(sh_chan, false); @@ -841,7 +842,7 @@ static enum dma_status sh_dmae_tx_status(struct dma_chan *chan, BUG_ON(last_complete < 0); dma_set_tx_state(txstate, last_complete, last_used, 0); - spin_lock_bh(&sh_chan->desc_lock); + spin_lock_irqsave(&sh_chan->desc_lock, flags); status = dma_async_is_complete(cookie, last_complete, last_used); @@ -859,7 +860,7 @@ static enum dma_status sh_dmae_tx_status(struct dma_chan *chan, } } - spin_unlock_bh(&sh_chan->desc_lock); + spin_unlock_irqrestore(&sh_chan->desc_lock, flags); return status; } @@ -952,7 +953,7 @@ static void dmae_do_tasklet(unsigned long data) u32 sar_buf = sh_dmae_readl(sh_chan, SAR); u32 dar_buf = sh_dmae_readl(sh_chan, DAR); - spin_lock(&sh_chan->desc_lock); + spin_lock_irq(&sh_chan->desc_lock); list_for_each_entry(desc, &sh_chan->ld_queue, node) { if (desc->mark == DESC_SUBMITTED && ((desc->direction == DMA_FROM_DEVICE && @@ -965,7 +966,7 @@ static void dmae_do_tasklet(unsigned long data) break; } } - spin_unlock(&sh_chan->desc_lock); + spin_unlock_irq(&sh_chan->desc_lock); /* Next desc */ sh_chan_xfer_ld_queue(sh_chan); -- cgit v1.2.3 From 7a1cd9ad87979744e1510782b25c38feb9602739 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Thu, 18 Aug 2011 16:55:27 +0200 Subject: dma: shdma: transfer based runtime PM Currently the shdma dmaengine driver uses runtime PM to save power, when no channel on the specific controller is requested by a user. This patch switches the driver to count individual DMA transfers. That way the controller can be powered down between transfers, even if some of its channels are in use. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Vinod Koul --- drivers/dma/shdma.c | 94 ++++++++++++++++++++++++++++++++++++++--------------- drivers/dma/shdma.h | 7 ++++ 2 files changed, 75 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c index e7bb7479b187..81809c2b46ab 100644 --- a/drivers/dma/shdma.c +++ b/drivers/dma/shdma.c @@ -259,15 +259,23 @@ static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val) return 0; } +static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan); + static dma_cookie_t sh_dmae_tx_submit(struct dma_async_tx_descriptor *tx) { struct sh_desc *desc = tx_to_sh_desc(tx), *chunk, *last = desc, *c; struct sh_dmae_chan *sh_chan = to_sh_chan(tx->chan); + struct sh_dmae_slave *param = tx->chan->private; dma_async_tx_callback callback = tx->callback; dma_cookie_t cookie; - unsigned long flags; + bool power_up; - spin_lock_irqsave(&sh_chan->desc_lock, flags); + spin_lock_irq(&sh_chan->desc_lock); + + if (list_empty(&sh_chan->ld_queue)) + power_up = true; + else + power_up = false; cookie = sh_chan->common.cookie; cookie++; @@ -303,7 +311,38 @@ static dma_cookie_t sh_dmae_tx_submit(struct dma_async_tx_descriptor *tx) tx->cookie, &last->async_tx, sh_chan->id, desc->hw.sar, desc->hw.tcr, desc->hw.dar); - spin_unlock_irqrestore(&sh_chan->desc_lock, flags); + if (power_up) { + sh_chan->pm_state = DMAE_PM_BUSY; + + pm_runtime_get(sh_chan->dev); + + spin_unlock_irq(&sh_chan->desc_lock); + + pm_runtime_barrier(sh_chan->dev); + + spin_lock_irq(&sh_chan->desc_lock); + + /* Have we been reset, while waiting? */ + if (sh_chan->pm_state != DMAE_PM_ESTABLISHED) { + dev_dbg(sh_chan->dev, "Bring up channel %d\n", + sh_chan->id); + if (param) { + const struct sh_dmae_slave_config *cfg = + param->config; + + dmae_set_dmars(sh_chan, cfg->mid_rid); + dmae_set_chcr(sh_chan, cfg->chcr); + } else { + dmae_init(sh_chan); + } + + if (sh_chan->pm_state == DMAE_PM_PENDING) + sh_chan_xfer_ld_queue(sh_chan); + sh_chan->pm_state = DMAE_PM_ESTABLISHED; + } + } + + spin_unlock_irq(&sh_chan->desc_lock); return cookie; } @@ -347,8 +386,6 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan) struct sh_dmae_slave *param = chan->private; int ret; - pm_runtime_get_sync(sh_chan->dev); - /* * This relies on the guarantee from dmaengine that alloc_chan_resources * never runs concurrently with itself or free_chan_resources. @@ -368,11 +405,6 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan) } param->config = cfg; - - dmae_set_dmars(sh_chan, cfg->mid_rid); - dmae_set_chcr(sh_chan, cfg->chcr); - } else { - dmae_init(sh_chan); } while (sh_chan->descs_allocated < NR_DESCS_PER_CHANNEL) { @@ -401,7 +433,6 @@ edescalloc: etestused: efindslave: chan->private = NULL; - pm_runtime_put(sh_chan->dev); return ret; } @@ -413,7 +444,6 @@ static void sh_dmae_free_chan_resources(struct dma_chan *chan) struct sh_dmae_chan *sh_chan = to_sh_chan(chan); struct sh_desc *desc, *_desc; LIST_HEAD(list); - int descs = sh_chan->descs_allocated; /* Protect against ISR */ spin_lock_irq(&sh_chan->desc_lock); @@ -440,9 +470,6 @@ static void sh_dmae_free_chan_resources(struct dma_chan *chan) spin_unlock_irq(&sh_chan->desc_lock); - if (descs > 0) - pm_runtime_put(sh_chan->dev); - list_for_each_entry_safe(desc, _desc, &list, node) kfree(desc); } @@ -676,7 +703,6 @@ static int sh_dmae_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd, struct sh_desc, node); desc->partial = (desc->hw.tcr - sh_dmae_readl(sh_chan, TCR)) << sh_chan->xmit_shift; - } spin_unlock_irqrestore(&sh_chan->desc_lock, flags); @@ -761,7 +787,13 @@ static dma_async_tx_callback __ld_cleanup(struct sh_dmae_chan *sh_chan, bool all async_tx_test_ack(&desc->async_tx)) || all) { /* Remove from ld_queue list */ desc->mark = DESC_IDLE; + list_move(&desc->node, &sh_chan->ld_free); + + if (list_empty(&sh_chan->ld_queue)) { + dev_dbg(sh_chan->dev, "Bring down channel %d\n", sh_chan->id); + pm_runtime_put(sh_chan->dev); + } } } @@ -791,16 +823,14 @@ static void sh_dmae_chan_ld_cleanup(struct sh_dmae_chan *sh_chan, bool all) ; } +/* Called under spin_lock_irq(&sh_chan->desc_lock) */ static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan) { struct sh_desc *desc; - spin_lock_irq(&sh_chan->desc_lock); /* DMA work check */ - if (dmae_is_busy(sh_chan)) { - spin_unlock_irq(&sh_chan->desc_lock); + if (dmae_is_busy(sh_chan)) return; - } /* Find the first not transferred descriptor */ list_for_each_entry(desc, &sh_chan->ld_queue, node) @@ -813,14 +843,18 @@ static void sh_chan_xfer_ld_queue(struct sh_dmae_chan *sh_chan) dmae_start(sh_chan); break; } - - spin_unlock_irq(&sh_chan->desc_lock); } static void sh_dmae_memcpy_issue_pending(struct dma_chan *chan) { struct sh_dmae_chan *sh_chan = to_sh_chan(chan); - sh_chan_xfer_ld_queue(sh_chan); + + spin_lock_irq(&sh_chan->desc_lock); + if (sh_chan->pm_state == DMAE_PM_ESTABLISHED) + sh_chan_xfer_ld_queue(sh_chan); + else + sh_chan->pm_state = DMAE_PM_PENDING; + spin_unlock_irq(&sh_chan->desc_lock); } static enum dma_status sh_dmae_tx_status(struct dma_chan *chan, @@ -913,6 +947,12 @@ static bool sh_dmae_reset(struct sh_dmae_device *shdev) list_splice_init(&sh_chan->ld_queue, &dl); + if (!list_empty(&dl)) { + dev_dbg(sh_chan->dev, "Bring down channel %d\n", sh_chan->id); + pm_runtime_put(sh_chan->dev); + } + sh_chan->pm_state = DMAE_PM_ESTABLISHED; + spin_unlock(&sh_chan->desc_lock); /* Complete all */ @@ -966,10 +1006,10 @@ static void dmae_do_tasklet(unsigned long data) break; } } - spin_unlock_irq(&sh_chan->desc_lock); - /* Next desc */ sh_chan_xfer_ld_queue(sh_chan); + spin_unlock_irq(&sh_chan->desc_lock); + sh_dmae_chan_ld_cleanup(sh_chan, false); } @@ -1037,7 +1077,9 @@ static int __devinit sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id, return -ENOMEM; } - /* copy struct dma_device */ + new_sh_chan->pm_state = DMAE_PM_ESTABLISHED; + + /* reference struct dma_device */ new_sh_chan->common.device = &shdev->common; new_sh_chan->dev = shdev->common.dev; diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h index dc56576f9fdb..2b55a276dc5b 100644 --- a/drivers/dma/shdma.h +++ b/drivers/dma/shdma.h @@ -23,6 +23,12 @@ struct device; +enum dmae_pm_state { + DMAE_PM_ESTABLISHED, + DMAE_PM_BUSY, + DMAE_PM_PENDING, +}; + struct sh_dmae_chan { dma_cookie_t completed_cookie; /* The maximum cookie completed */ spinlock_t desc_lock; /* Descriptor operation lock */ @@ -38,6 +44,7 @@ struct sh_dmae_chan { u32 __iomem *base; char dev_id[16]; /* unique name per DMAC of channel */ int pm_error; + enum dmae_pm_state pm_state; }; struct sh_dmae_device { -- cgit v1.2.3 From 4dcaebbf6586d299be8513512a1253f177b803d7 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 29 Sep 2011 16:53:29 +0100 Subject: xen: use generic functions instead of xen_{alloc, free}_vm_area() Replace calls to the Xen-specific xen_alloc_vm_area() and xen_free_vm_area() functions with the generic equivalent (alloc_vm_area() and free_vm_area()). On x86, these were identical already. Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_client.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index cdacf923e073..229d3adce85d 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -443,7 +443,7 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr) *vaddr = NULL; - area = xen_alloc_vm_area(PAGE_SIZE); + area = alloc_vm_area(PAGE_SIZE); if (!area) return -ENOMEM; @@ -453,7 +453,7 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr) BUG(); if (op.status != GNTST_okay) { - xen_free_vm_area(area); + free_vm_area(area); xenbus_dev_fatal(dev, op.status, "mapping in shared page %d from domain %d", gnt_ref, dev->otherend_id); @@ -552,7 +552,7 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr) BUG(); if (op.status == GNTST_okay) - xen_free_vm_area(area); + free_vm_area(area); else xenbus_dev_error(dev, op.status, "unmapping page at handle %d error %d", -- cgit v1.2.3 From 1bba688b5a32079db616f281c13f00944d74020b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 26 Sep 2011 10:13:03 +0800 Subject: mtd: r852: make r852_pm_ops static It is not used outside this driver so no need to make the symbol global. Also make r852_suspend and r852_resume static. Signed-off-by: Axel Lin Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/r852.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index cae2e013c986..f20f393bfda6 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -1027,7 +1027,7 @@ void r852_shutdown(struct pci_dev *pci_dev) } #ifdef CONFIG_PM -int r852_suspend(struct device *device) +static int r852_suspend(struct device *device) { struct r852_device *dev = pci_get_drvdata(to_pci_dev(device)); @@ -1048,7 +1048,7 @@ int r852_suspend(struct device *device) return 0; } -int r852_resume(struct device *device) +static int r852_resume(struct device *device) { struct r852_device *dev = pci_get_drvdata(to_pci_dev(device)); @@ -1092,7 +1092,7 @@ static const struct pci_device_id r852_pci_id_tbl[] = { MODULE_DEVICE_TABLE(pci, r852_pci_id_tbl); -SIMPLE_DEV_PM_OPS(r852_pm_ops, r852_suspend, r852_resume); +static SIMPLE_DEV_PM_OPS(r852_pm_ops, r852_suspend, r852_resume); static struct pci_driver r852_pci_driver = { .name = DRV_NAME, -- cgit v1.2.3 From f79e40eb66af17a4cfc56560b20fec73b0c7490e Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 26 Sep 2011 13:06:57 +0900 Subject: gpio/samsung: fix broken configuration for EXYNOS4 GPIO banks Commit 1b39d5f2cc introduced new common gpio driver for all Samsung GPIO SoCs. The new driver doesn't work correctly on Samsung Exynos4 SoC. It fails to set configuration for all but external interrupt pins. This patch fixes this issue. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Acked-by: Grant Likely Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index 36f3675e7de8..be135808f93f 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -446,6 +446,8 @@ static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = { static struct samsung_gpio_cfg exynos4_gpio_cfg = { .set_pull = exynos4_gpio_setpull, .get_pull = exynos4_gpio_getpull, + .set_config = samsung_gpio_setcfg_4bit, + .get_config = samsung_gpio_getcfg_4bit, }; static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = { -- cgit v1.2.3 From 3538d5f3ef42600e4f3b6ea202672b7730f9510e Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 26 Sep 2011 13:09:08 +0900 Subject: gpio/samsung: fix GPIO interrupt registration for EXYNOS4 SoCs Commit 1b39d5f2cc introduced new common gpio driver for all Samsung GPIO SoCs. The new driver doesn't correctly register GPIO interrupts on Samsung Exynos4 SoCs. This is caused by a typo in define name. This patch fixes this issue. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index be135808f93f..cdffb0c8401c 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -2461,7 +2461,7 @@ static __init int samsung_gpiolib_init(void) } samsung_gpiolib_add_4bit_chips(exynos4_gpios_3, nr_chips, S5P_VA_GPIO3); -#if defined(CONFIG_SOC_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT) +#if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT) s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS); s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS); #endif -- cgit v1.2.3 From b391f8cf606679e97b02e3b9dca8a1d9956a5301 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Mon, 26 Sep 2011 13:10:32 +0900 Subject: gpio/samsung: correct pin configuration for S5PC100/S5PC110/EXYNOS4 Commit 1b39d5f2cc introduced new common gpio driver for all Samsung GPIO SoCs. The new driver use wrong configuration setup for all gpio pins on S5PC100 and S5PV210 SoCs and external interrupt lines on Exynos4 SoCs. This patch fixes this issue. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Acked-by: Grant Likely Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index cdffb0c8401c..b6be77ae4973 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -1862,7 +1862,7 @@ static struct samsung_gpio_chip s5pc100_gpios_4bit[] = { * Followings are the gpio banks in S5PV210/S5PC110 * * The 'config' member when left to NULL, is initialized to the default - * structure samsung_gpio_cfgs[4] in the init function below. + * structure samsung_gpio_cfgs[3] in the init function below. * * The 'base' member is also initialized in the init function below. * Note: The initialization of 'base' member of samsung_gpio_chip structure @@ -2083,7 +2083,7 @@ static struct samsung_gpio_chip s5pv210_gpios_4bit[] = { * Followings are the gpio banks in EXYNOS4210 * * The 'config' member when left to NULL, is initialized to the default - * structure samsung_gpio_cfgs[4] in the init function below. + * structure samsung_gpio_cfgs[3] in the init function below. * * The 'base' member is also initialized in the init function below. * Note: The initialization of 'base' member of samsung_gpio_chip structure @@ -2249,49 +2249,49 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { .label = "GPL2", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY0(0), .ngpio = EXYNOS4_GPIO_Y0_NR, .label = "GPY0", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY1(0), .ngpio = EXYNOS4_GPIO_Y1_NR, .label = "GPY1", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY2(0), .ngpio = EXYNOS4_GPIO_Y2_NR, .label = "GPY2", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY3(0), .ngpio = EXYNOS4_GPIO_Y3_NR, .label = "GPY3", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY4(0), .ngpio = EXYNOS4_GPIO_Y4_NR, .label = "GPY4", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY5(0), .ngpio = EXYNOS4_GPIO_Y5_NR, .label = "GPY5", }, }, { - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[0], .chip = { .base = EXYNOS4_GPY6(0), .ngpio = EXYNOS4_GPIO_Y6_NR, @@ -2299,7 +2299,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC00), - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[3], .irq_base = IRQ_EINT(0), .chip = { .base = EXYNOS4_GPX0(0), @@ -2309,7 +2309,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC20), - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[3], .irq_base = IRQ_EINT(8), .chip = { .base = EXYNOS4_GPX1(0), @@ -2319,7 +2319,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC40), - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[3], .irq_base = IRQ_EINT(16), .chip = { .base = EXYNOS4_GPX2(0), @@ -2329,7 +2329,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC60), - .config = &samsung_gpio_cfgs[4], + .config = &samsung_gpio_cfgs[3], .irq_base = IRQ_EINT(24), .chip = { .base = EXYNOS4_GPX3(0), @@ -2399,7 +2399,7 @@ static __init int samsung_gpiolib_init(void) for (i = 0; i < nr_chips; i++, chip++) { if (!chip->config) { - chip->config = &samsung_gpio_cfgs[4]; + chip->config = &samsung_gpio_cfgs[3]; chip->group = group++; } } @@ -2414,7 +2414,7 @@ static __init int samsung_gpiolib_init(void) for (i = 0; i < nr_chips; i++, chip++) { if (!chip->config) { - chip->config = &samsung_gpio_cfgs[4]; + chip->config = &samsung_gpio_cfgs[3]; chip->group = group++; } } -- cgit v1.2.3 From f80befe081576219379debf6611f02c9f3b01c41 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 23 Sep 2011 09:16:01 +0300 Subject: dma/timberdale: free_irq() on an error path There was an error path that skipped the free_irq() step by mistake. Signed-off-by: Dan Carpenter Signed-off-by: Vinod Koul --- drivers/dma/timb_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c index 6dbdf451128e..a4a398f2ef61 100644 --- a/drivers/dma/timb_dma.c +++ b/drivers/dma/timb_dma.c @@ -762,7 +762,7 @@ static int __devinit td_probe(struct platform_device *pdev) if ((i % 2) == pchan->rx) { dev_err(&pdev->dev, "Wrong channel configuration\n"); err = -EINVAL; - goto err_tasklet_kill; + goto err_free_irq; } td_chan->chan.device = &td->dma; -- cgit v1.2.3 From c43f1508686e8e4746012bf87995085eeb0f5307 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Tue, 11 Oct 2011 21:43:21 +0900 Subject: pch_dma: Fix suspend issue Currently, executing suspend/hibernation, memory access violation occurs. In pch_dma_save_regs() called by suspend(), you can see the following code. static void pch_dma_save_regs(struct pch_dma *pd) { snip... list_for_each_entry_safe(chan, _c, &pd->dma.channels, device_node) { pd_chan = to_pd_chan(chan); pd->ch_regs[i].dev_addr = channel_readl(pd_chan, DEV_ADDR); pd->ch_regs[i].mem_addr = channel_readl(pd_chan, MEM_ADDR); pd->ch_regs[i].size = channel_readl(pd_chan, SIZE); pd->ch_regs[i].next = channel_readl(pd_chan, NEXT); i++; } } Max loop count is 12 defined at pci_table. So, this caused memory access violation. This patch fixes the issue - Modify array size (MAX_CHAN_NR) Signed-off-by: Tomoya MORINAGA Signed-off-by: Vinod Koul --- drivers/dma/pch_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index 5b65362024fd..6abe5ac3bd5e 100644 --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -60,7 +60,7 @@ #define DMA_DESC_FOLLOW_WITHOUT_IRQ 0x2 #define DMA_DESC_FOLLOW_WITH_IRQ 0x3 -#define MAX_CHAN_NR 8 +#define MAX_CHAN_NR 12 #define DMA_MASK_CTL0_MODE 0x33333333 #define DMA_MASK_CTL2_MODE 0x00003333 -- cgit v1.2.3 From 01631243d712d41681d61c0556341a3329860c47 Mon Sep 17 00:00:00 2001 From: Tomoya MORINAGA Date: Wed, 12 Oct 2011 09:38:35 +0900 Subject: pch_dma: Reduce wasting memory nr_channels is defined in "struct pch_dma". and struct pch_dma_chan is defined in "struct pch_dma". So, "sizeof(struct pch_dma_chan) * nr_channels" is unnecessary. Signed-off-by: Tomoya MORINAGA Signed-off-by: Vinod Koul --- drivers/dma/pch_dma.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c index 6abe5ac3bd5e..a6d0e3dbed07 100644 --- a/drivers/dma/pch_dma.c +++ b/drivers/dma/pch_dma.c @@ -872,8 +872,7 @@ static int __devinit pch_dma_probe(struct pci_dev *pdev, int i; nr_channels = id->driver_data; - pd = kzalloc(sizeof(struct pch_dma)+ - sizeof(struct pch_dma_chan) * nr_channels, GFP_KERNEL); + pd = kzalloc(sizeof(*pd), GFP_KERNEL); if (!pd) return -ENOMEM; -- cgit v1.2.3 From 8a8ab2e64e09b56dc1324fd2f7da12346166cad1 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Mon, 10 Oct 2011 19:55:58 +0900 Subject: gpio/samsung: only register available gpio banks Only register gpio banks provided by SoC instead of the maximum possible to lessen confusion, get rid of a warning from gpiolib and stop it from eating into the extra gpios for configs with S3C24XX_GPIO_EXTRA != 0. Signed-off-by: Peter Korsgaard Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index b6be77ae4973..c87b65af8c96 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -914,6 +914,10 @@ static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip, struct gpio_chip *gc = &chip->chip; for (i = 0 ; i < nr_chips; i++, chip++) { + /* skip banks not present on SoC */ + if (chip->chip.base >= S3C_GPIO_END) + continue; + if (!chip->config) chip->config = &s3c24xx_gpiocfg_default; if (!chip->pm) -- cgit v1.2.3 From b82cee243633fbb734de704e38f57c771d7afd73 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Wed, 12 Oct 2011 20:11:17 +0900 Subject: gpio/samsung: Fix incorrect gpio pull up/down callback for EXYNOS4 Some of the gpio chips of exynos4 are assigned a default gpio config without the exynos4 specific pull up/down callbacks which resulted in incorrect setting of pull up/down configuration. Fix this by adding two new exynos4 specific entries in the array of default configs with set_pull and get_pull callbacks set to exynos4 specific callbacks The new default gpio configs can then be used for exynos4 gpio chips. Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index c87b65af8c96..de8788de759d 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -482,7 +482,14 @@ static struct samsung_gpio_cfg samsung_gpio_cfgs[] = { }, { .set_config = samsung_gpio_setcfg_2bit, .get_config = samsung_gpio_getcfg_2bit, - }, + }, { + .set_pull = exynos4_gpio_setpull, + .get_pull = exynos4_gpio_getpull, + }, { + .cfg_eint = 0x3, + .set_pull = exynos4_gpio_setpull, + .get_pull = exynos4_gpio_getpull, + } }; /* @@ -2253,49 +2260,49 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { .label = "GPL2", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY0(0), .ngpio = EXYNOS4_GPIO_Y0_NR, .label = "GPY0", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY1(0), .ngpio = EXYNOS4_GPIO_Y1_NR, .label = "GPY1", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY2(0), .ngpio = EXYNOS4_GPIO_Y2_NR, .label = "GPY2", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY3(0), .ngpio = EXYNOS4_GPIO_Y3_NR, .label = "GPY3", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY4(0), .ngpio = EXYNOS4_GPIO_Y4_NR, .label = "GPY4", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY5(0), .ngpio = EXYNOS4_GPIO_Y5_NR, .label = "GPY5", }, }, { - .config = &samsung_gpio_cfgs[0], + .config = &samsung_gpio_cfgs[8], .chip = { .base = EXYNOS4_GPY6(0), .ngpio = EXYNOS4_GPIO_Y6_NR, @@ -2303,7 +2310,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC00), - .config = &samsung_gpio_cfgs[3], + .config = &samsung_gpio_cfgs[9], .irq_base = IRQ_EINT(0), .chip = { .base = EXYNOS4_GPX0(0), @@ -2313,7 +2320,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC20), - .config = &samsung_gpio_cfgs[3], + .config = &samsung_gpio_cfgs[9], .irq_base = IRQ_EINT(8), .chip = { .base = EXYNOS4_GPX1(0), @@ -2323,7 +2330,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC40), - .config = &samsung_gpio_cfgs[3], + .config = &samsung_gpio_cfgs[9], .irq_base = IRQ_EINT(16), .chip = { .base = EXYNOS4_GPX2(0), @@ -2333,7 +2340,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = { }, }, { .base = (S5P_VA_GPIO2 + 0xC60), - .config = &samsung_gpio_cfgs[3], + .config = &samsung_gpio_cfgs[9], .irq_base = IRQ_EINT(24), .chip = { .base = EXYNOS4_GPX3(0), -- cgit v1.2.3 From c034b184597d93ad7749aca3e8bd1c2105104f07 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Wed, 5 Oct 2011 08:55:49 +0900 Subject: gpio/samsung: Move SoC specific codes within macro In drivers/gpio/gpio-samsung.c, there are certain structures and functions which are not getting used if the particular CPU is not selected. These code segments are moved under CPU specific macros to remove compilation warnings. Signed-off-by: Tushar Behera Acked-by: Grant Likely Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index de8788de759d..479edc3b8ea3 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -318,6 +318,7 @@ static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip, return S3C_GPIO_SPECIAL(con); } +#ifdef CONFIG_PLAT_S3C24XX /* * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A) * @chip: The gpio chip that is being configured. @@ -379,7 +380,9 @@ static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip, return S3C_GPIO_SFN(con); } +#endif +#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450) static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip, unsigned int off, unsigned int cfg) { @@ -417,6 +420,7 @@ static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip, return 0; } +#endif static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg, int nr_chips) @@ -438,10 +442,12 @@ struct samsung_gpio_cfg s3c24xx_gpiocfg_default = { .get_config = samsung_gpio_getcfg_2bit, }; +#ifdef CONFIG_PLAT_S3C24XX static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = { .set_config = s3c24xx_gpio_setcfg_abank, .get_config = s3c24xx_gpio_getcfg_abank, }; +#endif static struct samsung_gpio_cfg exynos4_gpio_cfg = { .set_pull = exynos4_gpio_setpull, @@ -450,6 +456,7 @@ static struct samsung_gpio_cfg exynos4_gpio_cfg = { .get_config = samsung_gpio_getcfg_4bit, }; +#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450) static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = { .cfg_eint = 0x3, .set_config = s5p64x0_gpio_setcfg_rbank, @@ -457,6 +464,7 @@ static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = { .set_pull = samsung_gpio_setpull_updown, .get_pull = samsung_gpio_getpull_updown, }; +#endif static struct samsung_gpio_cfg samsung_gpio_cfgs[] = { { @@ -689,6 +697,7 @@ static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip, return 0; } +#ifdef CONFIG_PLAT_S3C24XX /* The next set of routines are for the case of s3c24xx bank a */ static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset) @@ -724,6 +733,7 @@ static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip, local_irq_restore(flags); return 0; } +#endif /* The next set of routines are for the case of s5p64x0 bank r */ -- cgit v1.2.3 From b3cb0d6adc4bbc70b5e37e49a6068e973545ead7 Mon Sep 17 00:00:00 2001 From: Li Dongyang Date: Thu, 1 Sep 2011 18:39:10 +0800 Subject: xen-blkback: Implement discard requests ('feature-discard') ..aka ATA TRIM/SCSI UNMAP command to be passed through the frontend and used as appropiately by the backend. We also advertise certain granulity parameters to the frontend so it can plug them in. If the backend is a realy device - we just end up using 'blkdev_issue_discard' while for loopback devices - we just punch a hole in the image file. Signed-off-by: Li Dongyang [v1: Fixed up pr_debug and commit description] Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 86 ++++++++++++++++++++++++++++------ drivers/block/xen-blkback/common.h | 93 ++++++++++++++++++++++++++++++------- drivers/block/xen-blkback/xenbus.c | 58 +++++++++++++++++++++++ 3 files changed, 206 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 2330a9ad5e95..9713d5a490e4 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -39,6 +39,9 @@ #include #include #include +#include +#include +#include #include #include @@ -258,13 +261,16 @@ irqreturn_t xen_blkif_be_int(int irq, void *dev_id) static void print_stats(struct xen_blkif *blkif) { - pr_info("xen-blkback (%s): oo %3d | rd %4d | wr %4d | f %4d\n", + pr_info("xen-blkback (%s): oo %3d | rd %4d | wr %4d | f %4d" + " | ds %4d\n", current->comm, blkif->st_oo_req, - blkif->st_rd_req, blkif->st_wr_req, blkif->st_f_req); + blkif->st_rd_req, blkif->st_wr_req, + blkif->st_f_req, blkif->st_ds_req); blkif->st_print = jiffies + msecs_to_jiffies(10 * 1000); blkif->st_rd_req = 0; blkif->st_wr_req = 0; blkif->st_oo_req = 0; + blkif->st_ds_req = 0; } int xen_blkif_schedule(void *arg) @@ -410,6 +416,42 @@ static int xen_blkbk_map(struct blkif_request *req, return ret; } +static void xen_blk_discard(struct xen_blkif *blkif, struct blkif_request *req) +{ + int err = 0; + int status = BLKIF_RSP_OKAY; + struct block_device *bdev = blkif->vbd.bdev; + + if (blkif->blk_backend_type == BLKIF_BACKEND_PHY) + /* just forward the discard request */ + err = blkdev_issue_discard(bdev, + req->u.discard.sector_number, + req->u.discard.nr_sectors, + GFP_KERNEL, 0); + else if (blkif->blk_backend_type == BLKIF_BACKEND_FILE) { + /* punch a hole in the backing file */ + struct loop_device *lo = bdev->bd_disk->private_data; + struct file *file = lo->lo_backing_file; + + if (file->f_op->fallocate) + err = file->f_op->fallocate(file, + FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, + req->u.discard.sector_number << 9, + req->u.discard.nr_sectors << 9); + else + err = -EOPNOTSUPP; + } else + err = -EOPNOTSUPP; + + if (err == -EOPNOTSUPP) { + pr_debug(DRV_PFX "discard op failed, not supported\n"); + status = BLKIF_RSP_EOPNOTSUPP; + } else if (err) + status = BLKIF_RSP_ERROR; + + make_response(blkif, req->id, req->operation, status); +} + /* * Completion callback on the bio's. Called as bh->b_end_io() */ @@ -563,6 +605,10 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, blkif->st_f_req++; operation = WRITE_FLUSH; break; + case BLKIF_OP_DISCARD: + blkif->st_ds_req++; + operation = REQ_DISCARD; + break; case BLKIF_OP_WRITE_BARRIER: default: operation = 0; /* make gcc happy */ @@ -572,7 +618,8 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, /* Check that the number of segments is sane. */ nseg = req->nr_segments; - if (unlikely(nseg == 0 && operation != WRITE_FLUSH) || + if (unlikely(nseg == 0 && operation != WRITE_FLUSH && + operation != REQ_DISCARD) || unlikely(nseg > BLKIF_MAX_SEGMENTS_PER_REQUEST)) { pr_debug(DRV_PFX "Bad number of segments in request (%d)\n", nseg); @@ -627,10 +674,14 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, * the hypercall to unmap the grants - that is all done in * xen_blkbk_unmap. */ - if (xen_blkbk_map(req, pending_req, seg)) + if (operation != BLKIF_OP_DISCARD && + xen_blkbk_map(req, pending_req, seg)) goto fail_flush; - /* This corresponding xen_blkif_put is done in __end_block_io_op */ + /* + * This corresponding xen_blkif_put is done in __end_block_io_op, or + * below (in "!bio") if we are handling a BLKIF_OP_DISCARD. + */ xen_blkif_get(blkif); for (i = 0; i < nseg; i++) { @@ -654,18 +705,25 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, preq.sector_number += seg[i].nsec; } - /* This will be hit if the operation was a flush. */ + /* This will be hit if the operation was a flush or discard. */ if (!bio) { - BUG_ON(operation != WRITE_FLUSH); + BUG_ON(operation != WRITE_FLUSH && operation != REQ_DISCARD); - bio = bio_alloc(GFP_KERNEL, 0); - if (unlikely(bio == NULL)) - goto fail_put_bio; + if (operation == WRITE_FLUSH) { + bio = bio_alloc(GFP_KERNEL, 0); + if (unlikely(bio == NULL)) + goto fail_put_bio; - biolist[nbio++] = bio; - bio->bi_bdev = preq.bdev; - bio->bi_private = pending_req; - bio->bi_end_io = end_block_io_op; + biolist[nbio++] = bio; + bio->bi_bdev = preq.bdev; + bio->bi_private = pending_req; + bio->bi_end_io = end_block_io_op; + } else if (operation == REQ_DISCARD) { + xen_blk_discard(blkif, req); + xen_blkif_put(blkif); + free_req(pending_req); + return 0; + } } /* diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 9e40b283a468..bfb532ea5b1b 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -63,13 +63,26 @@ struct blkif_common_response { /* i386 protocol version */ #pragma pack(push, 4) + +struct blkif_x86_32_request_rw { + blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ + struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; +}; + +struct blkif_x86_32_request_discard { + blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ + uint64_t nr_sectors; +}; + struct blkif_x86_32_request { uint8_t operation; /* BLKIF_OP_??? */ uint8_t nr_segments; /* number of segments */ blkif_vdev_t handle; /* only for read/write requests */ uint64_t id; /* private guest value, echoed in resp */ - blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ - struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + union { + struct blkif_x86_32_request_rw rw; + struct blkif_x86_32_request_discard discard; + } u; }; struct blkif_x86_32_response { uint64_t id; /* copied from request */ @@ -79,13 +92,26 @@ struct blkif_x86_32_response { #pragma pack(pop) /* x86_64 protocol version */ + +struct blkif_x86_64_request_rw { + blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ + struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; +}; + +struct blkif_x86_64_request_discard { + blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ + uint64_t nr_sectors; +}; + struct blkif_x86_64_request { uint8_t operation; /* BLKIF_OP_??? */ uint8_t nr_segments; /* number of segments */ blkif_vdev_t handle; /* only for read/write requests */ uint64_t __attribute__((__aligned__(8))) id; - blkif_sector_t sector_number;/* start sector idx on disk (r/w only) */ - struct blkif_request_segment seg[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + union { + struct blkif_x86_64_request_rw rw; + struct blkif_x86_64_request_discard discard; + } u; }; struct blkif_x86_64_response { uint64_t __attribute__((__aligned__(8))) id; @@ -113,6 +139,11 @@ enum blkif_protocol { BLKIF_PROTOCOL_X86_64 = 3, }; +enum blkif_backend_type { + BLKIF_BACKEND_PHY = 1, + BLKIF_BACKEND_FILE = 2, +}; + struct xen_vbd { /* What the domain refers to this vbd as. */ blkif_vdev_t handle; @@ -138,6 +169,7 @@ struct xen_blkif { unsigned int irq; /* Comms information. */ enum blkif_protocol blk_protocol; + enum blkif_backend_type blk_backend_type; union blkif_back_rings blk_rings; struct vm_struct *blk_ring_area; /* The VBD attached to this interface. */ @@ -159,6 +191,7 @@ struct xen_blkif { int st_wr_req; int st_oo_req; int st_f_req; + int st_ds_req; int st_rd_sect; int st_wr_sect; @@ -182,7 +215,7 @@ struct xen_blkif { struct phys_req { unsigned short dev; - unsigned short nr_sects; + blkif_sector_t nr_sects; struct block_device *bdev; blkif_sector_t sector_number; }; @@ -206,12 +239,25 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst, dst->nr_segments = src->nr_segments; dst->handle = src->handle; dst->id = src->id; - dst->u.rw.sector_number = src->sector_number; - barrier(); - if (n > dst->nr_segments) - n = dst->nr_segments; - for (i = 0; i < n; i++) - dst->u.rw.seg[i] = src->seg[i]; + switch (src->operation) { + case BLKIF_OP_READ: + case BLKIF_OP_WRITE: + case BLKIF_OP_WRITE_BARRIER: + case BLKIF_OP_FLUSH_DISKCACHE: + dst->u.rw.sector_number = src->u.rw.sector_number; + barrier(); + if (n > dst->nr_segments) + n = dst->nr_segments; + for (i = 0; i < n; i++) + dst->u.rw.seg[i] = src->u.rw.seg[i]; + break; + case BLKIF_OP_DISCARD: + dst->u.discard.sector_number = src->u.discard.sector_number; + dst->u.discard.nr_sectors = src->u.discard.nr_sectors; + break; + default: + break; + } } static inline void blkif_get_x86_64_req(struct blkif_request *dst, @@ -222,12 +268,25 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst, dst->nr_segments = src->nr_segments; dst->handle = src->handle; dst->id = src->id; - dst->u.rw.sector_number = src->sector_number; - barrier(); - if (n > dst->nr_segments) - n = dst->nr_segments; - for (i = 0; i < n; i++) - dst->u.rw.seg[i] = src->seg[i]; + switch (src->operation) { + case BLKIF_OP_READ: + case BLKIF_OP_WRITE: + case BLKIF_OP_WRITE_BARRIER: + case BLKIF_OP_FLUSH_DISKCACHE: + dst->u.rw.sector_number = src->u.rw.sector_number; + barrier(); + if (n > dst->nr_segments) + n = dst->nr_segments; + for (i = 0; i < n; i++) + dst->u.rw.seg[i] = src->u.rw.seg[i]; + break; + case BLKIF_OP_DISCARD: + dst->u.discard.sector_number = src->u.discard.sector_number; + dst->u.discard.nr_sectors = src->u.discard.nr_sectors; + break; + default: + break; + } } #endif /* __XEN_BLKIF__BACKEND__COMMON_H__ */ diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 3f129b45451a..2b3aef0332f3 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -272,6 +272,7 @@ VBD_SHOW(oo_req, "%d\n", be->blkif->st_oo_req); VBD_SHOW(rd_req, "%d\n", be->blkif->st_rd_req); VBD_SHOW(wr_req, "%d\n", be->blkif->st_wr_req); VBD_SHOW(f_req, "%d\n", be->blkif->st_f_req); +VBD_SHOW(ds_req, "%d\n", be->blkif->st_ds_req); VBD_SHOW(rd_sect, "%d\n", be->blkif->st_rd_sect); VBD_SHOW(wr_sect, "%d\n", be->blkif->st_wr_sect); @@ -280,6 +281,7 @@ static struct attribute *xen_vbdstat_attrs[] = { &dev_attr_rd_req.attr, &dev_attr_wr_req.attr, &dev_attr_f_req.attr, + &dev_attr_ds_req.attr, &dev_attr_rd_sect.attr, &dev_attr_wr_sect.attr, NULL @@ -419,6 +421,60 @@ int xen_blkbk_flush_diskcache(struct xenbus_transaction xbt, return err; } +int xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info *be) +{ + struct xenbus_device *dev = be->dev; + struct xen_blkif *blkif = be->blkif; + char *type; + int err; + int state = 0; + + type = xenbus_read(XBT_NIL, dev->nodename, "type", NULL); + if (!IS_ERR(type)) { + if (strncmp(type, "file", 4) == 0) { + state = 1; + blkif->blk_backend_type = BLKIF_BACKEND_FILE; + } + if (strncmp(type, "phy", 3) == 0) { + struct block_device *bdev = be->blkif->vbd.bdev; + struct request_queue *q = bdev_get_queue(bdev); + if (blk_queue_discard(q)) { + err = xenbus_printf(xbt, dev->nodename, + "discard-granularity", "%u", + q->limits.discard_granularity); + if (err) { + xenbus_dev_fatal(dev, err, + "writing discard-granularity"); + goto kfree; + } + err = xenbus_printf(xbt, dev->nodename, + "discard-alignment", "%u", + q->limits.discard_alignment); + if (err) { + xenbus_dev_fatal(dev, err, + "writing discard-alignment"); + goto kfree; + } + state = 1; + blkif->blk_backend_type = BLKIF_BACKEND_PHY; + } + } + } else { + err = PTR_ERR(type); + xenbus_dev_fatal(dev, err, "reading type"); + goto out; + } + + err = xenbus_printf(xbt, dev->nodename, "feature-discard", + "%d", state); + if (err) + xenbus_dev_fatal(dev, err, "writing feature-discard"); +kfree: + kfree(type); +out: + return err; +} + /* * Entry point to this code when a new device is created. Allocate the basic * structures, and watch the store waiting for the hotplug scripts to tell us @@ -650,6 +706,8 @@ again: if (err) goto abort; + err = xen_blkbk_discard(xbt, be); + err = xenbus_printf(xbt, dev->nodename, "sectors", "%llu", (unsigned long long)vbd_sz(&be->blkif->vbd)); if (err) { -- cgit v1.2.3 From ed30bf317c5ceb25166cdbce3e0b35e33c82b509 Mon Sep 17 00:00:00 2001 From: Li Dongyang Date: Thu, 1 Sep 2011 18:39:09 +0800 Subject: xen-blkfront: Handle discard requests. If the backend advertises 'feature-discard', then interrogate the backend for alignment and granularity. Setup the request queue with the appropiate values and send the discard operation as required. Signed-off-by: Li Dongyang [v1: Amended commit description] Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 111 ++++++++++++++++++++++++++++++++++--------- 1 file changed, 88 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index b536a9cef917..52076b0d0326 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -98,6 +98,9 @@ struct blkfront_info unsigned long shadow_free; unsigned int feature_flush; unsigned int flush_op; + unsigned int feature_discard; + unsigned int discard_granularity; + unsigned int discard_alignment; int is_ready; }; @@ -302,29 +305,36 @@ static int blkif_queue_request(struct request *req) ring_req->operation = info->flush_op; } - ring_req->nr_segments = blk_rq_map_sg(req->q, req, info->sg); - BUG_ON(ring_req->nr_segments > BLKIF_MAX_SEGMENTS_PER_REQUEST); + if (unlikely(req->cmd_flags & REQ_DISCARD)) { + /* id, sector_number and handle are set above. */ + ring_req->operation = BLKIF_OP_DISCARD; + ring_req->nr_segments = 0; + ring_req->u.discard.nr_sectors = blk_rq_sectors(req); + } else { + ring_req->nr_segments = blk_rq_map_sg(req->q, req, info->sg); + BUG_ON(ring_req->nr_segments > BLKIF_MAX_SEGMENTS_PER_REQUEST); - for_each_sg(info->sg, sg, ring_req->nr_segments, i) { - buffer_mfn = pfn_to_mfn(page_to_pfn(sg_page(sg))); - fsect = sg->offset >> 9; - lsect = fsect + (sg->length >> 9) - 1; - /* install a grant reference. */ - ref = gnttab_claim_grant_reference(&gref_head); - BUG_ON(ref == -ENOSPC); + for_each_sg(info->sg, sg, ring_req->nr_segments, i) { + buffer_mfn = pfn_to_mfn(page_to_pfn(sg_page(sg))); + fsect = sg->offset >> 9; + lsect = fsect + (sg->length >> 9) - 1; + /* install a grant reference. */ + ref = gnttab_claim_grant_reference(&gref_head); + BUG_ON(ref == -ENOSPC); - gnttab_grant_foreign_access_ref( - ref, - info->xbdev->otherend_id, - buffer_mfn, - rq_data_dir(req) ); - - info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn); - ring_req->u.rw.seg[i] = - (struct blkif_request_segment) { - .gref = ref, - .first_sect = fsect, - .last_sect = lsect }; + gnttab_grant_foreign_access_ref( + ref, + info->xbdev->otherend_id, + buffer_mfn, + rq_data_dir(req)); + + info->shadow[id].frame[i] = mfn_to_pfn(buffer_mfn); + ring_req->u.rw.seg[i] = + (struct blkif_request_segment) { + .gref = ref, + .first_sect = fsect, + .last_sect = lsect }; + } } info->ring.req_prod_pvt++; @@ -399,6 +409,7 @@ wait: static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) { struct request_queue *rq; + struct blkfront_info *info = gd->private_data; rq = blk_init_queue(do_blkif_request, &blkif_io_lock); if (rq == NULL) @@ -406,6 +417,13 @@ static int xlvbd_init_blk_queue(struct gendisk *gd, u16 sector_size) queue_flag_set_unlocked(QUEUE_FLAG_VIRT, rq); + if (info->feature_discard) { + queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, rq); + blk_queue_max_discard_sectors(rq, get_capacity(gd)); + rq->limits.discard_granularity = info->discard_granularity; + rq->limits.discard_alignment = info->discard_alignment; + } + /* Hard sector size and max sectors impersonate the equiv. hardware. */ blk_queue_logical_block_size(rq, sector_size); blk_queue_max_hw_sectors(rq, 512); @@ -722,6 +740,19 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) error = (bret->status == BLKIF_RSP_OKAY) ? 0 : -EIO; switch (bret->operation) { + case BLKIF_OP_DISCARD: + if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { + struct request_queue *rq = info->rq; + printk(KERN_WARNING "blkfront: %s: discard op failed\n", + info->gd->disk_name); + error = -EOPNOTSUPP; + info->feature_discard = 0; + spin_lock(rq->queue_lock); + queue_flag_clear(QUEUE_FLAG_DISCARD, rq); + spin_unlock(rq->queue_lock); + } + __blk_end_request_all(req, error); + break; case BLKIF_OP_FLUSH_DISKCACHE: case BLKIF_OP_WRITE_BARRIER: if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { @@ -1098,6 +1129,33 @@ blkfront_closing(struct blkfront_info *info) bdput(bdev); } +static void blkfront_setup_discard(struct blkfront_info *info) +{ + int err; + char *type; + unsigned int discard_granularity; + unsigned int discard_alignment; + + type = xenbus_read(XBT_NIL, info->xbdev->otherend, "type", NULL); + if (IS_ERR(type)) + return; + + if (strncmp(type, "phy", 3) == 0) { + err = xenbus_gather(XBT_NIL, info->xbdev->otherend, + "discard-granularity", "%u", &discard_granularity, + "discard-alignment", "%u", &discard_alignment, + NULL); + if (!err) { + info->feature_discard = 1; + info->discard_granularity = discard_granularity; + info->discard_alignment = discard_alignment; + } + } else if (strncmp(type, "file", 4) == 0) + info->feature_discard = 1; + + kfree(type); +} + /* * Invoked when the backend is finally 'ready' (and has told produced * the details about the physical device - #sectors, size, etc). @@ -1108,7 +1166,7 @@ static void blkfront_connect(struct blkfront_info *info) unsigned long sector_size; unsigned int binfo; int err; - int barrier, flush; + int barrier, flush, discard; switch (info->connected) { case BLKIF_STATE_CONNECTED: @@ -1178,7 +1236,14 @@ static void blkfront_connect(struct blkfront_info *info) info->feature_flush = REQ_FLUSH; info->flush_op = BLKIF_OP_FLUSH_DISKCACHE; } - + + err = xenbus_gather(XBT_NIL, info->xbdev->otherend, + "feature-discard", "%d", &discard, + NULL); + + if (!err && discard) + blkfront_setup_discard(info); + err = xlvbd_alloc_gendisk(sectors, info, binfo, sector_size); if (err) { xenbus_dev_fatal(info->xbdev, err, "xlvbd_add at %s", -- cgit v1.2.3 From 69ef68cef961a934c35308843a04b26d91cad4a8 Mon Sep 17 00:00:00 2001 From: Li Dongyang Date: Wed, 14 Sep 2011 14:02:40 +0800 Subject: xen-blkfront: fix a deadlock while handling discard response When we get -EOPNOTSUPP response for a discard request, we will clear the discard flag on the request queue so we won't attempt to send discard requests to backend again, and this should be protected under rq->queue_lock. However, when we setup the request queue, we pass blkif_io_lock to blk_init_queue so rq->queue_lock is blkif_io_lock indeed, and this lock is already taken when we are in blkif_interrpt, so remove the spin_lock/spin_unlock when we clear the discard flag or we will end up with deadlock here Signed-off-by: Li Dongyang [v1: Updated description a bit and removed comment from source] Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 52076b0d0326..7d1487760283 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -747,9 +747,7 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) info->gd->disk_name); error = -EOPNOTSUPP; info->feature_discard = 0; - spin_lock(rq->queue_lock); queue_flag_clear(QUEUE_FLAG_DISCARD, rq); - spin_unlock(rq->queue_lock); } __blk_end_request_all(req, error); break; -- cgit v1.2.3 From c555aab97de139ac8762c922248bb68f43a8c488 Mon Sep 17 00:00:00 2001 From: Joe Jin Date: Mon, 15 Aug 2011 12:57:07 +0800 Subject: xen-blkback: fixed indentation and comments This patch fixes belows: 1. Fix code style issue. 2. Fix incorrect functions name in comments. Signed-off-by: Joe Jin Cc: Jens Axboe Cc: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/common.h | 2 +- drivers/block/xen-blkback/xenbus.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index bfb532ea5b1b..1b1bc4458685 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -46,7 +46,7 @@ #define DRV_PFX "xen-blkback:" #define DPRINTK(fmt, args...) \ - pr_debug(DRV_PFX "(%s:%d) " fmt ".\n", \ + pr_debug(DRV_PFX "(%s:%d) " fmt ".\n", \ __func__, __LINE__, ##args) diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 2b3aef0332f3..1c44b3254134 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -646,7 +646,7 @@ static void frontend_changed(struct xenbus_device *dev, /* * Enforce precondition before potential leak point. - * blkif_disconnect() is idempotent. + * xen_blkif_disconnect() is idempotent. */ xen_blkif_disconnect(be->blkif); @@ -667,7 +667,7 @@ static void frontend_changed(struct xenbus_device *dev, break; /* fall through if not online */ case XenbusStateUnknown: - /* implies blkif_disconnect() via blkback_remove() */ + /* implies xen_blkif_disconnect() via xen_blkbk_remove() */ device_unregister(&dev->dev); break; -- cgit v1.2.3 From 8e6dc6fe51957116d363204a725c1262b4b78e19 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 16 Sep 2011 08:38:09 +0100 Subject: xen-blkback: use kzalloc() in favor of kmalloc()+memset() This fixes the problem of three of those four memset()-s having improper size arguments passed: Sizeof a pointer-typed expression returns the size of the pointer, not that of the pointed to data. It also reverts using kmalloc() instead of kzalloc() for the allocation of the pending grant handles array, as that array gets fully initialized in a subsequent loop. Reported-by: Julia Lawall Signed-off-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 9713d5a490e4..e0dab614049c 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -823,9 +823,9 @@ static int __init xen_blkif_init(void) mmap_pages = xen_blkif_reqs * BLKIF_MAX_SEGMENTS_PER_REQUEST; - blkbk->pending_reqs = kmalloc(sizeof(blkbk->pending_reqs[0]) * + blkbk->pending_reqs = kzalloc(sizeof(blkbk->pending_reqs[0]) * xen_blkif_reqs, GFP_KERNEL); - blkbk->pending_grant_handles = kzalloc(sizeof(blkbk->pending_grant_handles[0]) * + blkbk->pending_grant_handles = kmalloc(sizeof(blkbk->pending_grant_handles[0]) * mmap_pages, GFP_KERNEL); blkbk->pending_pages = kzalloc(sizeof(blkbk->pending_pages[0]) * mmap_pages, GFP_KERNEL); @@ -848,8 +848,6 @@ static int __init xen_blkif_init(void) if (rc) goto failed_init; - memset(blkbk->pending_reqs, 0, sizeof(blkbk->pending_reqs)); - INIT_LIST_HEAD(&blkbk->pending_free); spin_lock_init(&blkbk->pending_free_lock); init_waitqueue_head(&blkbk->pending_free_wq); -- cgit v1.2.3 From d11e6158307bed3f178399a4e6216eec67d16200 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 16 Sep 2011 15:15:14 -0400 Subject: xen-blkfront: If no barrier or flush is supported, use invalid operation. Guard against issuing BLKIF_OP_WRITE_BARRIER or BLKIF_OP_FLUSH_CACHE by checking whether we successfully negotiated with the backend. The negotiation with the backend also sets the q->flush_flags which fortunately for us is also used when submitting an bio to us. If we don't support barriers or flushes it would be set to zero so we should never end up having to deal with REQ_FLUSH | REQ_FUA. However, other third party implementations of __make_request that might be stacked on top of us might not be so smart, so lets fix this up. Acked-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 7d1487760283..8bf0cb7b2565 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -380,7 +380,9 @@ static void do_blkif_request(struct request_queue *rq) blk_start_request(req); - if (req->cmd_type != REQ_TYPE_FS) { + if ((req->cmd_type != REQ_TYPE_FS) || + ((req->cmd_flags & (REQ_FLUSH | REQ_FUA)) && + !info->flush_op)) { __blk_end_request_all(req, -EIO); continue; } -- cgit v1.2.3 From 469738e675524b6aa029ecd46bdda3f878b12eff Mon Sep 17 00:00:00 2001 From: Laszlo Ersek Date: Fri, 7 Oct 2011 21:34:38 +0200 Subject: xen-blkfront: plug device number leak in xlblk_init() error path ... though after a failed xenbus_register_frontend() all may be lost. Acked-by: Ian Campbell Signed-off-by: Laszlo Ersek Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 8bf0cb7b2565..773da7d6491e 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -1450,6 +1450,8 @@ static struct xenbus_driver blkfront = { static int __init xlblk_init(void) { + int ret; + if (!xen_domain()) return -ENODEV; @@ -1459,7 +1461,13 @@ static int __init xlblk_init(void) return -ENODEV; } - return xenbus_register_frontend(&blkfront); + ret = xenbus_register_frontend(&blkfront); + if (ret) { + unregister_blkdev(XENVBD_MAJOR, DEV_NAME); + return ret; + } + + return 0; } module_init(xlblk_init); -- cgit v1.2.3 From 29bde093787f3bdf7b9b4270ada6be7c8076e36b Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 10 Oct 2011 00:42:22 -0400 Subject: xen/blkback: Support 'feature-barrier' aka old-style BARRIER requests. We emulate the barrier requests by draining the outstanding bio's and then sending the WRITE_FLUSH command. To drain the I/Os we use the refcnt that is used during disconnect to wait for all the I/Os before disconnecting from the frontend. We latch on its value and if it reaches either the threshold for disconnect or when there are no more outstanding I/Os, then we have drained all I/Os. Suggested-by: Christopher Hellwig Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 37 +++++++++++++++++++++++++++++++++++-- drivers/block/xen-blkback/common.h | 5 +++++ drivers/block/xen-blkback/xenbus.c | 18 ++++++++++++++++++ 3 files changed, 58 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index e0dab614049c..184b1335c8e9 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -452,6 +452,23 @@ static void xen_blk_discard(struct xen_blkif *blkif, struct blkif_request *req) make_response(blkif, req->id, req->operation, status); } +static void xen_blk_drain_io(struct xen_blkif *blkif) +{ + atomic_set(&blkif->drain, 1); + do { + wait_for_completion_interruptible_timeout( + &blkif->drain_complete, HZ); + + if (!atomic_read(&blkif->drain)) + break; + /* The initial value is one, and one refcnt taken at the + * start of the xen_blkif_schedule thread. */ + if (atomic_read(&blkif->refcnt) <= 2) + break; + } while (!kthread_should_stop()); + atomic_set(&blkif->drain, 0); +} + /* * Completion callback on the bio's. Called as bh->b_end_io() */ @@ -464,6 +481,11 @@ static void __end_block_io_op(struct pending_req *pending_req, int error) pr_debug(DRV_PFX "flush diskcache op failed, not supported\n"); xen_blkbk_flush_diskcache(XBT_NIL, pending_req->blkif->be, 0); pending_req->status = BLKIF_RSP_EOPNOTSUPP; + } else if ((pending_req->operation == BLKIF_OP_WRITE_BARRIER) && + (error == -EOPNOTSUPP)) { + pr_debug(DRV_PFX "write barrier op failed, not supported\n"); + xen_blkbk_barrier(XBT_NIL, pending_req->blkif->be, 0); + pending_req->status = BLKIF_RSP_EOPNOTSUPP; } else if (error) { pr_debug(DRV_PFX "Buffer not up-to-date at end of operation," " error=%d\n", error); @@ -481,6 +503,10 @@ static void __end_block_io_op(struct pending_req *pending_req, int error) pending_req->operation, pending_req->status); xen_blkif_put(pending_req->blkif); free_req(pending_req); + if (atomic_read(&pending_req->blkif->refcnt) <= 2) { + if (atomic_read(&pending_req->blkif->drain)) + complete(&pending_req->blkif->drain_complete); + } } } @@ -574,7 +600,6 @@ do_block_io_op(struct xen_blkif *blkif) return more_to_do; } - /* * Transmutation of the 'struct blkif_request' to a proper 'struct bio' * and call the 'submit_bio' to pass it to the underlying storage. @@ -591,6 +616,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, int i, nbio = 0; int operation; struct blk_plug plug; + bool drain = false; switch (req->operation) { case BLKIF_OP_READ: @@ -601,6 +627,8 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, blkif->st_wr_req++; operation = WRITE_ODIRECT; break; + case BLKIF_OP_WRITE_BARRIER: + drain = true; case BLKIF_OP_FLUSH_DISKCACHE: blkif->st_f_req++; operation = WRITE_FLUSH; @@ -609,7 +637,6 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, blkif->st_ds_req++; operation = REQ_DISCARD; break; - case BLKIF_OP_WRITE_BARRIER: default: operation = 0; /* make gcc happy */ goto fail_response; @@ -668,6 +695,12 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, } } + /* Wait on all outstanding I/O's and once that has been completed + * issue the WRITE_FLUSH. + */ + if (drain) + xen_blk_drain_io(pending_req->blkif); + /* * If we have failed at this point, we need to undo the M2P override, * set gnttab_set_unmap_op on all of the grant references and perform diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 1b1bc4458685..e638457d9de4 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -181,6 +181,9 @@ struct xen_blkif { atomic_t refcnt; wait_queue_head_t wq; + /* for barrier (drain) requests */ + struct completion drain_complete; + atomic_t drain; /* One thread per one blkif. */ struct task_struct *xenblkd; unsigned int waiting_reqs; @@ -229,6 +232,8 @@ int xen_blkif_schedule(void *arg); int xen_blkbk_flush_diskcache(struct xenbus_transaction xbt, struct backend_info *be, int state); +int xen_blkbk_barrier(struct xenbus_transaction xbt, + struct backend_info *be, int state); struct xenbus_device *xen_blkbk_xenbus(struct backend_info *be); static inline void blkif_get_x86_32_req(struct blkif_request *dst, diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 1c44b3254134..a6d43030b107 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -114,6 +114,8 @@ static struct xen_blkif *xen_blkif_alloc(domid_t domid) spin_lock_init(&blkif->blk_ring_lock); atomic_set(&blkif->refcnt, 1); init_waitqueue_head(&blkif->wq); + init_completion(&blkif->drain_complete); + atomic_set(&blkif->drain, 0); blkif->st_print = jiffies; init_waitqueue_head(&blkif->waiting_to_free); @@ -474,6 +476,19 @@ kfree: out: return err; } +int xen_blkbk_barrier(struct xenbus_transaction xbt, + struct backend_info *be, int state) +{ + struct xenbus_device *dev = be->dev; + int err; + + err = xenbus_printf(xbt, dev->nodename, "feature-barrier", + "%d", state); + if (err) + xenbus_dev_fatal(dev, err, "writing feature-barrier"); + + return err; +} /* * Entry point to this code when a new device is created. Allocate the basic @@ -708,6 +723,9 @@ again: err = xen_blkbk_discard(xbt, be); + /* If we can't advertise it is OK. */ + err = xen_blkbk_barrier(xbt, be, be->blkif->vbd.flush_support); + err = xenbus_printf(xbt, dev->nodename, "sectors", "%llu", (unsigned long long)vbd_sz(&be->blkif->vbd)); if (err) { -- cgit v1.2.3 From 5c62cb48602dba95159c81ffeca179d3852e25be Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 10 Oct 2011 12:33:21 -0400 Subject: xen/blkback: Report VBD_WSECT (wr_sect) properly. We did not increment the amount of sectors written to disk b/c we tested for the == WRITE which is incorrect - as the operations are more of WRITE_FLUSH, WRITE_ODIRECT. This patch fixes it by doing a & WRITE check. CC: stable@kernel.org Reported-by: Andy Burns Suggested-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 184b1335c8e9..c15c559e8662 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -776,7 +776,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, if (operation == READ) blkif->st_rd_sect += preq.nr_sects; - else if (operation == WRITE || operation == WRITE_FLUSH) + else if (operation & WRITE) blkif->st_wr_sect += preq.nr_sects; return 0; -- cgit v1.2.3 From 64391b2536ca92f9c589b2bfeaca3954896fe057 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 10 Oct 2011 00:47:49 -0400 Subject: xen/blkback: Fix the inhibition to map pages when discarding sector ranges. The 'operation' parameters are the ones provided to the bio layer while the req->operation are the ones passed in between the backend and frontend. We used the wrong 'operation' value to squash the call to map pages when processing the discard operation resulting in an hypercall that did nothing. Lets guard against going in the mapping function by checking for the proper operation type. CC: Li Dongyang Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index c15c559e8662..53c81de6f886 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -707,8 +707,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, * the hypercall to unmap the grants - that is all done in * xen_blkbk_unmap. */ - if (operation != BLKIF_OP_DISCARD && - xen_blkbk_map(req, pending_req, seg)) + if (operation == REQ_DISCARD && xen_blkbk_map(req, pending_req, seg)) goto fail_flush; /* -- cgit v1.2.3 From c031ab15fff38562cc9e5921c9acc118bd99f42d Mon Sep 17 00:00:00 2001 From: Mihai Caraman Date: Thu, 13 Oct 2011 18:05:21 +0300 Subject: drivers/virt: add ioctl for 32-bit compat on 64-bit to fsl-hv-manager Add ioctl to Freescale hypervisor management driver for 32-bit user-space applications running on 64-bit guests. Signed-off-by: Mihai Caraman Acked-by: Timur Tabi Signed-off-by: Kumar Gala --- drivers/virt/fsl_hypervisor.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c index 3d9162151fd2..4939e0ccc4e5 100644 --- a/drivers/virt/fsl_hypervisor.c +++ b/drivers/virt/fsl_hypervisor.c @@ -706,6 +706,7 @@ static const struct file_operations fsl_hv_fops = { .poll = fsl_hv_poll, .read = fsl_hv_read, .unlocked_ioctl = fsl_hv_ioctl, + .compat_ioctl = fsl_hv_ioctl, }; static struct miscdevice fsl_hv_misc_dev = { -- cgit v1.2.3 From 16f7eca5871ad09b8f6c44ba8cb4d8185833a1ee Mon Sep 17 00:00:00 2001 From: Dan McGee Date: Wed, 28 Sep 2011 00:21:42 -0500 Subject: mtd: mark block device queue as non-rotational This is similar to what the nbd driver does, among others. Signed-off-by: Dan McGee Signed-off-by: Artem Bityutskiy --- drivers/mtd/mtd_blkdevs.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c index ca385697446e..ed8b5e744b12 100644 --- a/drivers/mtd/mtd_blkdevs.c +++ b/drivers/mtd/mtd_blkdevs.c @@ -426,6 +426,8 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new) new->rq->queuedata = new; blk_queue_logical_block_size(new->rq, tr->blksize); + queue_flag_set_unlocked(QUEUE_FLAG_NONROT, new->rq); + if (tr->discard) { queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, new->rq); new->rq->limits.max_discard_sectors = UINT_MAX; -- cgit v1.2.3 From 86a9893d08420a320191a1bcc0136ec2b6b04595 Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Fri, 30 Sep 2011 15:08:38 +0800 Subject: mtd: m25p80: add EON flash EN25Q32B into spi flash id table Add support for EON spi flash EN25Q32B, which is not listed in id table, need to add it in the id table to support the EON flash. Signed-off-by: Shaohui Xie Signed-off-by: Kumar Gala Acked-by: Mike Frysinger Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 60177fe19582..02aecacd1994 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -666,6 +666,7 @@ static const struct spi_device_id m25p_ids[] = { /* EON -- en25xxx */ { "en25f32", INFO(0x1c3116, 0, 64 * 1024, 64, SECT_4K) }, { "en25p32", INFO(0x1c2016, 0, 64 * 1024, 64, 0) }, + { "en25q32b", INFO(0x1c3016, 0, 64 * 1024, 64, 0) }, { "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) }, /* Intel/Numonyx -- xxxs33b */ -- cgit v1.2.3 From efa2ca73a7bc1a8f8e66bcfad33391746819ffe6 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Wed, 5 Oct 2011 15:22:34 +0200 Subject: mtd: Add DiskOnChip G3 support Add support for DiskOnChip G3 chips. The support is quite limited yet : - no flash writes/erases are implemented - ECC fixes are not implemented - powerdown is not implemented - IPL handling is not yet done On the brighter side, the chip reading does work. Signed-off-by: Robert Jarzmik --- drivers/mtd/devices/Kconfig | 10 + drivers/mtd/devices/Makefile | 3 + drivers/mtd/devices/docg3.c | 1114 ++++++++++++++++++++++++++++++++++++++++++ drivers/mtd/devices/docg3.h | 297 +++++++++++ 4 files changed, 1424 insertions(+) create mode 100644 drivers/mtd/devices/docg3.c create mode 100644 drivers/mtd/devices/docg3.h (limited to 'drivers') diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 35081ce77fbd..6d91a1f049c8 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -249,6 +249,16 @@ config MTD_DOC2001PLUS under "NAND Flash Device Drivers" (currently that driver does not support all Millennium Plus devices). +config MTD_DOCG3 + tristate "M-Systems Disk-On-Chip G3" + ---help--- + This provides an MTD device driver for the M-Systems DiskOnChip + G3 devices. + + The driver provides access to G3 DiskOnChip, distributed by + M-Systems and now Sandisk. The support is very experimental, + and doesn't give access to any write operations. + config MTD_DOCPROBE tristate select MTD_DOCECC diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile index f3226b1d38fc..56c7cd462f11 100644 --- a/drivers/mtd/devices/Makefile +++ b/drivers/mtd/devices/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_MTD_DOC2000) += doc2000.o obj-$(CONFIG_MTD_DOC2001) += doc2001.o obj-$(CONFIG_MTD_DOC2001PLUS) += doc2001plus.o +obj-$(CONFIG_MTD_DOCG3) += docg3.o obj-$(CONFIG_MTD_DOCPROBE) += docprobe.o obj-$(CONFIG_MTD_DOCECC) += docecc.o obj-$(CONFIG_MTD_SLRAM) += slram.o @@ -17,3 +18,5 @@ obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o obj-$(CONFIG_MTD_M25P80) += m25p80.o obj-$(CONFIG_MTD_SST25L) += sst25l.o + +CFLAGS_docg3.o += -I$(src) \ No newline at end of file diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c new file mode 100644 index 000000000000..bdcf5df982e8 --- /dev/null +++ b/drivers/mtd/devices/docg3.c @@ -0,0 +1,1114 @@ +/* + * Handles the M-Systems DiskOnChip G3 chip + * + * Copyright (C) 2011 Robert Jarzmik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#define CREATE_TRACE_POINTS +#include "docg3.h" + +/* + * This driver handles the DiskOnChip G3 flash memory. + * + * As no specification is available from M-Systems/Sandisk, this drivers lacks + * several functions available on the chip, as : + * - block erase + * - page write + * - IPL write + * - ECC fixing (lack of BCH algorith understanding) + * - powerdown / powerup + * + * The bus data width (8bits versus 16bits) is not handled (if_cfg flag), and + * the driver assumes a 16bits data bus. + * + * DocG3 relies on 2 ECC algorithms, which are handled in hardware : + * - a 1 byte Hamming code stored in the OOB for each page + * - a 7 bytes BCH code stored in the OOB for each page + * The BCH part is only used for check purpose, no correction is available as + * some information is missing. What is known is that : + * - BCH is in GF(2^14) + * - BCH is over data of 520 bytes (512 page + 7 page_info bytes + * + 1 hamming byte) + * - BCH can correct up to 4 bits (t = 4) + * - BCH syndroms are calculated in hardware, and checked in hardware as well + * + */ + +static inline u8 doc_readb(struct docg3 *docg3, u16 reg) +{ + u8 val = readb(docg3->base + reg); + + trace_docg3_io(0, 8, reg, (int)val); + return val; +} + +static inline u16 doc_readw(struct docg3 *docg3, u16 reg) +{ + u16 val = readw(docg3->base + reg); + + trace_docg3_io(0, 16, reg, (int)val); + return val; +} + +static inline void doc_writeb(struct docg3 *docg3, u8 val, u16 reg) +{ + writeb(val, docg3->base + reg); + trace_docg3_io(1, 16, reg, val); +} + +static inline void doc_writew(struct docg3 *docg3, u16 val, u16 reg) +{ + writew(val, docg3->base + reg); + trace_docg3_io(1, 16, reg, val); +} + +static inline void doc_flash_command(struct docg3 *docg3, u8 cmd) +{ + doc_writeb(docg3, cmd, DOC_FLASHCOMMAND); +} + +static inline void doc_flash_sequence(struct docg3 *docg3, u8 seq) +{ + doc_writeb(docg3, seq, DOC_FLASHSEQUENCE); +} + +static inline void doc_flash_address(struct docg3 *docg3, u8 addr) +{ + doc_writeb(docg3, addr, DOC_FLASHADDRESS); +} + +static char const *part_probes[] = { "cmdlinepart", "saftlpart", NULL }; + +static int doc_register_readb(struct docg3 *docg3, int reg) +{ + u8 val; + + doc_writew(docg3, reg, DOC_READADDRESS); + val = doc_readb(docg3, reg); + doc_vdbg("Read register %04x : %02x\n", reg, val); + return val; +} + +static int doc_register_readw(struct docg3 *docg3, int reg) +{ + u16 val; + + doc_writew(docg3, reg, DOC_READADDRESS); + val = doc_readw(docg3, reg); + doc_vdbg("Read register %04x : %04x\n", reg, val); + return val; +} + +/** + * doc_delay - delay docg3 operations + * @docg3: the device + * @nbNOPs: the number of NOPs to issue + * + * As no specification is available, the right timings between chip commands are + * unknown. The only available piece of information are the observed nops on a + * working docg3 chip. + * Therefore, doc_delay relies on a busy loop of NOPs, instead of scheduler + * friendlier msleep() functions or blocking mdelay(). + */ +static void doc_delay(struct docg3 *docg3, int nbNOPs) +{ + int i; + + doc_dbg("NOP x %d\n", nbNOPs); + for (i = 0; i < nbNOPs; i++) + doc_writeb(docg3, 0, DOC_NOP); +} + +static int is_prot_seq_error(struct docg3 *docg3) +{ + int ctrl; + + ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL); + return ctrl & (DOC_CTRL_PROTECTION_ERROR | DOC_CTRL_SEQUENCE_ERROR); +} + +static int doc_is_ready(struct docg3 *docg3) +{ + int ctrl; + + ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL); + return ctrl & DOC_CTRL_FLASHREADY; +} + +static int doc_wait_ready(struct docg3 *docg3) +{ + int maxWaitCycles = 100; + + do { + doc_delay(docg3, 4); + cpu_relax(); + } while (!doc_is_ready(docg3) && maxWaitCycles--); + doc_delay(docg3, 2); + if (maxWaitCycles > 0) + return 0; + else + return -EIO; +} + +static int doc_reset_seq(struct docg3 *docg3) +{ + int ret; + + doc_writeb(docg3, 0x10, DOC_FLASHCONTROL); + doc_flash_sequence(docg3, DOC_SEQ_RESET); + doc_flash_command(docg3, DOC_CMD_RESET); + doc_delay(docg3, 2); + ret = doc_wait_ready(docg3); + + doc_dbg("doc_reset_seq() -> isReady=%s\n", ret ? "false" : "true"); + return ret; +} + +/** + * doc_read_data_area - Read data from data area + * @docg3: the device + * @buf: the buffer to fill in + * @len: the lenght to read + * @first: first time read, DOC_READADDRESS should be set + * + * Reads bytes from flash data. Handles the single byte / even bytes reads. + */ +static void doc_read_data_area(struct docg3 *docg3, void *buf, int len, + int first) +{ + int i, cdr, len4; + u16 data16, *dst16; + u8 data8, *dst8; + + doc_dbg("doc_read_data_area(buf=%p, len=%d)\n", buf, len); + cdr = len & 0x3; + len4 = len - cdr; + + if (first) + doc_writew(docg3, DOC_IOSPACE_DATA, DOC_READADDRESS); + dst16 = buf; + for (i = 0; i < len4; i += 2) { + data16 = doc_readw(docg3, DOC_IOSPACE_DATA); + *dst16 = data16; + dst16++; + } + + if (cdr) { + doc_writew(docg3, DOC_IOSPACE_DATA | DOC_READADDR_ONE_BYTE, + DOC_READADDRESS); + doc_delay(docg3, 1); + dst8 = (u8 *)dst16; + for (i = 0; i < cdr; i++) { + data8 = doc_readb(docg3, DOC_IOSPACE_DATA); + *dst8 = data8; + dst8++; + } + } +} + +/** + * doc_set_data_mode - Sets the flash to reliable data mode + * @docg3: the device + * + * The reliable data mode is a bit slower than the fast mode, but less errors + * occur. Entering the reliable mode cannot be done without entering the fast + * mode first. + */ +static void doc_set_reliable_mode(struct docg3 *docg3) +{ + doc_dbg("doc_set_reliable_mode()\n"); + doc_flash_sequence(docg3, DOC_SEQ_SET_MODE); + doc_flash_command(docg3, DOC_CMD_FAST_MODE); + doc_flash_command(docg3, DOC_CMD_RELIABLE_MODE); + doc_delay(docg3, 2); +} + +/** + * doc_set_asic_mode - Set the ASIC mode + * @docg3: the device + * @mode: the mode + * + * The ASIC can work in 3 modes : + * - RESET: all registers are zeroed + * - NORMAL: receives and handles commands + * - POWERDOWN: minimal poweruse, flash parts shut off + */ +static void doc_set_asic_mode(struct docg3 *docg3, u8 mode) +{ + int i; + + for (i = 0; i < 12; i++) + doc_readb(docg3, DOC_IOSPACE_IPL); + + mode |= DOC_ASICMODE_MDWREN; + doc_dbg("doc_set_asic_mode(%02x)\n", mode); + doc_writeb(docg3, mode, DOC_ASICMODE); + doc_writeb(docg3, ~mode, DOC_ASICMODECONFIRM); + doc_delay(docg3, 1); +} + +/** + * doc_set_device_id - Sets the devices id for cascaded G3 chips + * @docg3: the device + * @id: the chip to select (amongst 0, 1, 2, 3) + * + * There can be 4 cascaded G3 chips. This function selects the one which will + * should be the active one. + */ +static void doc_set_device_id(struct docg3 *docg3, int id) +{ + u8 ctrl; + + doc_dbg("doc_set_device_id(%d)\n", id); + doc_writeb(docg3, id, DOC_DEVICESELECT); + ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL); + + ctrl &= ~DOC_CTRL_VIOLATION; + ctrl |= DOC_CTRL_CE; + doc_writeb(docg3, ctrl, DOC_FLASHCONTROL); +} + +/** + * doc_set_extra_page_mode - Change flash page layout + * @docg3: the device + * + * Normally, the flash page is split into the data (512 bytes) and the out of + * band data (16 bytes). For each, 4 more bytes can be accessed, where the wear + * leveling counters are stored. To access this last area of 4 bytes, a special + * mode must be input to the flash ASIC. + * + * Returns 0 if no error occured, -EIO else. + */ +static int doc_set_extra_page_mode(struct docg3 *docg3) +{ + int fctrl; + + doc_dbg("doc_set_extra_page_mode()\n"); + doc_flash_sequence(docg3, DOC_SEQ_PAGE_SIZE_532); + doc_flash_command(docg3, DOC_CMD_PAGE_SIZE_532); + doc_delay(docg3, 2); + + fctrl = doc_register_readb(docg3, DOC_FLASHCONTROL); + if (fctrl & (DOC_CTRL_PROTECTION_ERROR | DOC_CTRL_SEQUENCE_ERROR)) + return -EIO; + else + return 0; +} + +/** + * doc_seek - Set both flash planes to the specified block, page for reading + * @docg3: the device + * @block0: the first plane block index + * @block1: the second plane block index + * @page: the page index within the block + * @wear: if true, read will occur on the 4 extra bytes of the wear area + * @ofs: offset in page to read + * + * Programs the flash even and odd planes to the specific block and page. + * Alternatively, programs the flash to the wear area of the specified page. + */ +static int doc_read_seek(struct docg3 *docg3, int block0, int block1, int page, + int wear, int ofs) +{ + int sector, ret = 0; + + doc_dbg("doc_seek(blocks=(%d,%d), page=%d, ofs=%d, wear=%d)\n", + block0, block1, page, ofs, wear); + + if (!wear && (ofs < 2 * DOC_LAYOUT_PAGE_SIZE)) { + doc_flash_sequence(docg3, DOC_SEQ_SET_PLANE1); + doc_flash_command(docg3, DOC_CMD_READ_PLANE1); + doc_delay(docg3, 2); + } else { + doc_flash_sequence(docg3, DOC_SEQ_SET_PLANE2); + doc_flash_command(docg3, DOC_CMD_READ_PLANE2); + doc_delay(docg3, 2); + } + + doc_set_reliable_mode(docg3); + if (wear) + ret = doc_set_extra_page_mode(docg3); + if (ret) + goto out; + + sector = (block0 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK); + doc_flash_sequence(docg3, DOC_SEQ_READ); + doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR); + doc_delay(docg3, 1); + doc_flash_address(docg3, sector & 0xff); + doc_flash_address(docg3, (sector >> 8) & 0xff); + doc_flash_address(docg3, (sector >> 16) & 0xff); + doc_delay(docg3, 1); + + sector = (block1 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK); + doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR); + doc_delay(docg3, 1); + doc_flash_address(docg3, sector & 0xff); + doc_flash_address(docg3, (sector >> 8) & 0xff); + doc_flash_address(docg3, (sector >> 16) & 0xff); + doc_delay(docg3, 2); + +out: + return ret; +} + +/** + * doc_read_page_ecc_init - Initialize hardware ECC engine + * @docg3: the device + * @len: the number of bytes covered by the ECC (BCH covered) + * + * The function does initialize the hardware ECC engine to compute the Hamming + * ECC (on 1 byte) and the BCH Syndroms (on 7 bytes). + * + * Return 0 if succeeded, -EIO on error + */ +static int doc_read_page_ecc_init(struct docg3 *docg3, int len) +{ + doc_writew(docg3, DOC_ECCCONF0_READ_MODE + | DOC_ECCCONF0_BCH_ENABLE | DOC_ECCCONF0_HAMMING_ENABLE + | (len & DOC_ECCCONF0_DATA_BYTES_MASK), + DOC_ECCCONF0); + doc_delay(docg3, 4); + doc_register_readb(docg3, DOC_FLASHCONTROL); + return doc_wait_ready(docg3); +} + +/** + * doc_read_page_prepare - Prepares reading data from a flash page + * @docg3: the device + * @block0: the first plane block index on flash memory + * @block1: the second plane block index on flash memory + * @page: the page index in the block + * @offset: the offset in the page (must be a multiple of 4) + * + * Prepares the page to be read in the flash memory : + * - tell ASIC to map the flash pages + * - tell ASIC to be in read mode + * + * After a call to this method, a call to doc_read_page_finish is mandatory, + * to end the read cycle of the flash. + * + * Read data from a flash page. The length to be read must be between 0 and + * (page_size + oob_size + wear_size), ie. 532, and a multiple of 4 (because + * the extra bytes reading is not implemented). + * + * As pages are grouped by 2 (in 2 planes), reading from a page must be done + * in two steps: + * - one read of 512 bytes at offset 0 + * - one read of 512 bytes at offset 512 + 16 + * + * Returns 0 if successful, -EIO if a read error occured. + */ +static int doc_read_page_prepare(struct docg3 *docg3, int block0, int block1, + int page, int offset) +{ + int wear_area = 0, ret = 0; + + doc_dbg("doc_read_page_prepare(blocks=(%d,%d), page=%d, ofsInPage=%d)\n", + block0, block1, page, offset); + if (offset >= DOC_LAYOUT_WEAR_OFFSET) + wear_area = 1; + if (!wear_area && offset > (DOC_LAYOUT_PAGE_OOB_SIZE * 2)) + return -EINVAL; + + doc_set_device_id(docg3, docg3->device_id); + ret = doc_reset_seq(docg3); + if (ret) + goto err; + + /* Program the flash address block and page */ + ret = doc_read_seek(docg3, block0, block1, page, wear_area, offset); + if (ret) + goto err; + + doc_flash_command(docg3, DOC_CMD_READ_ALL_PLANES); + doc_delay(docg3, 2); + doc_wait_ready(docg3); + + doc_flash_command(docg3, DOC_CMD_SET_ADDR_READ); + doc_delay(docg3, 1); + if (offset >= DOC_LAYOUT_PAGE_SIZE * 2) + offset -= 2 * DOC_LAYOUT_PAGE_SIZE; + doc_flash_address(docg3, offset >> 2); + doc_delay(docg3, 1); + doc_wait_ready(docg3); + + doc_flash_command(docg3, DOC_CMD_READ_FLASH); + + return 0; +err: + doc_writeb(docg3, 0, DOC_DATAEND); + doc_delay(docg3, 2); + return -EIO; +} + +/** + * doc_read_page_getbytes - Reads bytes from a prepared page + * @docg3: the device + * @len: the number of bytes to be read (must be a multiple of 4) + * @buf: the buffer to be filled in + * @first: 1 if first time read, DOC_READADDRESS should be set + * + */ +static int doc_read_page_getbytes(struct docg3 *docg3, int len, u_char *buf, + int first) +{ + doc_read_data_area(docg3, buf, len, first); + doc_delay(docg3, 2); + return len; +} + +/** + * doc_get_hw_bch_syndroms - Get hardware calculated BCH syndroms + * @docg3: the device + * @syns: the array of 7 integers where the syndroms will be stored + */ +static void doc_get_hw_bch_syndroms(struct docg3 *docg3, int *syns) +{ + int i; + + for (i = 0; i < DOC_ECC_BCH_SIZE; i++) + syns[i] = doc_register_readb(docg3, DOC_BCH_SYNDROM(i)); +} + +/** + * doc_read_page_finish - Ends reading of a flash page + * @docg3: the device + * + * As a side effect, resets the chip selector to 0. This ensures that after each + * read operation, the floor 0 is selected. Therefore, if the systems halts, the + * reboot will boot on floor 0, where the IPL is. + */ +static void doc_read_page_finish(struct docg3 *docg3) +{ + doc_writeb(docg3, 0, DOC_DATAEND); + doc_delay(docg3, 2); + doc_set_device_id(docg3, 0); +} + +/** + * calc_block_sector - Calculate blocks, pages and ofs. + + * @from: offset in flash + * @block0: first plane block index calculated + * @block1: second plane block index calculated + * @page: page calculated + * @ofs: offset in page + */ +static void calc_block_sector(loff_t from, int *block0, int *block1, int *page, + int *ofs) +{ + uint sector; + + sector = from / DOC_LAYOUT_PAGE_SIZE; + *block0 = sector / (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES) + * DOC_LAYOUT_NBPLANES; + *block1 = *block0 + 1; + *page = sector % (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES); + *page /= DOC_LAYOUT_NBPLANES; + if (sector % 2) + *ofs = DOC_LAYOUT_PAGE_OOB_SIZE; + else + *ofs = 0; +} + +/** + * doc_read - Read bytes from flash + * @mtd: the device + * @from: the offset from first block and first page, in bytes, aligned on page + * size + * @len: the number of bytes to read (must be a multiple of 4) + * @retlen: the number of bytes actually read + * @buf: the filled in buffer + * + * Reads flash memory pages. This function does not read the OOB chunk, but only + * the page data. + * + * Returns 0 if read successfull, of -EIO, -EINVAL if an error occured + */ +static int doc_read(struct mtd_info *mtd, loff_t from, size_t len, + size_t *retlen, u_char *buf) +{ + struct docg3 *docg3 = mtd->priv; + int block0, block1, page, readlen, ret, ofs = 0; + int syn[DOC_ECC_BCH_SIZE], eccconf1; + u8 oob[DOC_LAYOUT_OOB_SIZE]; + + ret = -EINVAL; + doc_dbg("doc_read(from=%lld, len=%zu, buf=%p)\n", from, len, buf); + if (from % DOC_LAYOUT_PAGE_SIZE) + goto err; + if (len % 4) + goto err; + calc_block_sector(from, &block0, &block1, &page, &ofs); + if (block1 > docg3->max_block) + goto err; + + *retlen = 0; + ret = 0; + readlen = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE); + while (!ret && len > 0) { + readlen = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE); + ret = doc_read_page_prepare(docg3, block0, block1, page, ofs); + if (ret < 0) + goto err; + ret = doc_read_page_ecc_init(docg3, DOC_ECC_BCH_COVERED_BYTES); + if (ret < 0) + goto err_in_read; + ret = doc_read_page_getbytes(docg3, readlen, buf, 1); + if (ret < readlen) + goto err_in_read; + ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE, + oob, 0); + if (ret < DOC_LAYOUT_OOB_SIZE) + goto err_in_read; + + *retlen += readlen; + buf += readlen; + len -= readlen; + + ofs ^= DOC_LAYOUT_PAGE_OOB_SIZE; + if (ofs == 0) + page += 2; + if (page > DOC_ADDR_PAGE_MASK) { + page = 0; + block0 += 2; + block1 += 2; + } + + /* + * There should be a BCH bitstream fixing algorithm here ... + * By now, a page read failure is triggered by BCH error + */ + doc_get_hw_bch_syndroms(docg3, syn); + eccconf1 = doc_register_readb(docg3, DOC_ECCCONF1); + + doc_dbg("OOB - INFO: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + oob[0], oob[1], oob[2], oob[3], oob[4], + oob[5], oob[6]); + doc_dbg("OOB - HAMMING: %02x\n", oob[7]); + doc_dbg("OOB - BCH_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + oob[8], oob[9], oob[10], oob[11], oob[12], + oob[13], oob[14]); + doc_dbg("OOB - UNUSED: %02x\n", oob[15]); + doc_dbg("ECC checks: ECCConf1=%x\n", eccconf1); + doc_dbg("ECC BCH syndrom: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n", + syn[0], syn[1], syn[2], syn[3], syn[4], syn[5], syn[6]); + + ret = -EBADMSG; + if (block0 >= DOC_LAYOUT_BLOCK_FIRST_DATA) { + if (eccconf1 & DOC_ECCCONF1_BCH_SYNDROM_ERR) + goto err_in_read; + if (is_prot_seq_error(docg3)) + goto err_in_read; + } + doc_read_page_finish(docg3); + } + + return 0; +err_in_read: + doc_read_page_finish(docg3); +err: + return ret; +} + +/** + * doc_read_oob - Read out of band bytes from flash + * @mtd: the device + * @from: the offset from first block and first page, in bytes, aligned on page + * size + * @ops: the mtd oob structure + * + * Reads flash memory OOB area of pages. + * + * Returns 0 if read successfull, of -EIO, -EINVAL if an error occured + */ +static int doc_read_oob(struct mtd_info *mtd, loff_t from, + struct mtd_oob_ops *ops) +{ + struct docg3 *docg3 = mtd->priv; + int block0, block1, page, ofs, ret; + u8 *buf = ops->oobbuf; + size_t len = ops->ooblen; + + doc_dbg("doc_read_oob(from=%lld, buf=%p, len=%zu)\n", from, buf, len); + if (len != DOC_LAYOUT_OOB_SIZE) + return -EINVAL; + + switch (ops->mode) { + case MTD_OPS_PLACE_OOB: + buf += ops->ooboffs; + break; + default: + break; + } + + calc_block_sector(from, &block0, &block1, &page, &ofs); + if (block1 > docg3->max_block) + return -EINVAL; + + ret = doc_read_page_prepare(docg3, block0, block1, page, + ofs + DOC_LAYOUT_PAGE_SIZE); + if (!ret) + ret = doc_read_page_ecc_init(docg3, DOC_LAYOUT_OOB_SIZE); + if (!ret) + ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE, + buf, 1); + doc_read_page_finish(docg3); + + if (ret > 0) + ops->oobretlen = ret; + else + ops->oobretlen = 0; + return (ret > 0) ? 0 : ret; +} + +static int doc_reload_bbt(struct docg3 *docg3) +{ + int block = DOC_LAYOUT_BLOCK_BBT; + int ret = 0, nbpages, page; + u_char *buf = docg3->bbt; + + nbpages = DIV_ROUND_UP(docg3->max_block + 1, 8 * DOC_LAYOUT_PAGE_SIZE); + for (page = 0; !ret && (page < nbpages); page++) { + ret = doc_read_page_prepare(docg3, block, block + 1, + page + DOC_LAYOUT_PAGE_BBT, 0); + if (!ret) + ret = doc_read_page_ecc_init(docg3, + DOC_LAYOUT_PAGE_SIZE); + if (!ret) + doc_read_page_getbytes(docg3, DOC_LAYOUT_PAGE_SIZE, + buf, 1); + buf += DOC_LAYOUT_PAGE_SIZE; + } + doc_read_page_finish(docg3); + return ret; +} + +/** + * doc_block_isbad - Checks whether a block is good or not + * @mtd: the device + * @from: the offset to find the correct block + * + * Returns 1 if block is bad, 0 if block is good + */ +static int doc_block_isbad(struct mtd_info *mtd, loff_t from) +{ + struct docg3 *docg3 = mtd->priv; + int block0, block1, page, ofs, is_good; + + calc_block_sector(from, &block0, &block1, &page, &ofs); + doc_dbg("doc_block_isbad(from=%lld) => block=(%d,%d), page=%d, ofs=%d\n", + from, block0, block1, page, ofs); + + if (block0 < DOC_LAYOUT_BLOCK_FIRST_DATA) + return 0; + if (block1 > docg3->max_block) + return -EINVAL; + + is_good = docg3->bbt[block0 >> 3] & (1 << (block0 & 0x7)); + return !is_good; +} + +/** + * doc_get_erase_count - Get block erase count + * @docg3: the device + * @from: the offset in which the block is. + * + * Get the number of times a block was erased. The number is the maximum of + * erase times between first and second plane (which should be equal normally). + * + * Returns The number of erases, or -EINVAL or -EIO on error. + */ +static int doc_get_erase_count(struct docg3 *docg3, loff_t from) +{ + u8 buf[DOC_LAYOUT_WEAR_SIZE]; + int ret, plane1_erase_count, plane2_erase_count; + int block0, block1, page, ofs; + + doc_dbg("doc_get_erase_count(from=%lld, buf=%p)\n", from, buf); + if (from % DOC_LAYOUT_PAGE_SIZE) + return -EINVAL; + calc_block_sector(from, &block0, &block1, &page, &ofs); + if (block1 > docg3->max_block) + return -EINVAL; + + ret = doc_reset_seq(docg3); + if (!ret) + ret = doc_read_page_prepare(docg3, block0, block1, page, + ofs + DOC_LAYOUT_WEAR_OFFSET); + if (!ret) + ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_WEAR_SIZE, + buf, 1); + doc_read_page_finish(docg3); + + if (ret || (buf[0] != DOC_ERASE_MARK) || (buf[2] != DOC_ERASE_MARK)) + return -EIO; + plane1_erase_count = (u8)(~buf[1]) | ((u8)(~buf[4]) << 8) + | ((u8)(~buf[5]) << 16); + plane2_erase_count = (u8)(~buf[3]) | ((u8)(~buf[6]) << 8) + | ((u8)(~buf[7]) << 16); + + return max(plane1_erase_count, plane2_erase_count); +} + +/* + * Debug sysfs entries + */ +static int dbg_flashctrl_show(struct seq_file *s, void *p) +{ + struct docg3 *docg3 = (struct docg3 *)s->private; + + int pos = 0; + u8 fctrl = doc_register_readb(docg3, DOC_FLASHCONTROL); + + pos += seq_printf(s, + "FlashControl : 0x%02x (%s,CE# %s,%s,%s,flash %s)\n", + fctrl, + fctrl & DOC_CTRL_VIOLATION ? "protocol violation" : "-", + fctrl & DOC_CTRL_CE ? "active" : "inactive", + fctrl & DOC_CTRL_PROTECTION_ERROR ? "protection error" : "-", + fctrl & DOC_CTRL_SEQUENCE_ERROR ? "sequence error" : "-", + fctrl & DOC_CTRL_FLASHREADY ? "ready" : "not ready"); + return pos; +} +DEBUGFS_RO_ATTR(flashcontrol, dbg_flashctrl_show); + +static int dbg_asicmode_show(struct seq_file *s, void *p) +{ + struct docg3 *docg3 = (struct docg3 *)s->private; + + int pos = 0; + int pctrl = doc_register_readb(docg3, DOC_ASICMODE); + int mode = pctrl & 0x03; + + pos += seq_printf(s, + "%04x : RAM_WE=%d,RSTIN_RESET=%d,BDETCT_RESET=%d,WRITE_ENABLE=%d,POWERDOWN=%d,MODE=%d%d (", + pctrl, + pctrl & DOC_ASICMODE_RAM_WE ? 1 : 0, + pctrl & DOC_ASICMODE_RSTIN_RESET ? 1 : 0, + pctrl & DOC_ASICMODE_BDETCT_RESET ? 1 : 0, + pctrl & DOC_ASICMODE_MDWREN ? 1 : 0, + pctrl & DOC_ASICMODE_POWERDOWN ? 1 : 0, + mode >> 1, mode & 0x1); + + switch (mode) { + case DOC_ASICMODE_RESET: + pos += seq_printf(s, "reset"); + break; + case DOC_ASICMODE_NORMAL: + pos += seq_printf(s, "normal"); + break; + case DOC_ASICMODE_POWERDOWN: + pos += seq_printf(s, "powerdown"); + break; + } + pos += seq_printf(s, ")\n"); + return pos; +} +DEBUGFS_RO_ATTR(asic_mode, dbg_asicmode_show); + +static int dbg_device_id_show(struct seq_file *s, void *p) +{ + struct docg3 *docg3 = (struct docg3 *)s->private; + int pos = 0; + int id = doc_register_readb(docg3, DOC_DEVICESELECT); + + pos += seq_printf(s, "DeviceId = %d\n", id); + return pos; +} +DEBUGFS_RO_ATTR(device_id, dbg_device_id_show); + +static int dbg_protection_show(struct seq_file *s, void *p) +{ + struct docg3 *docg3 = (struct docg3 *)s->private; + int pos = 0; + int protect = doc_register_readb(docg3, DOC_PROTECTION); + int dps0 = doc_register_readb(docg3, DOC_DPS0_STATUS); + int dps0_low = doc_register_readb(docg3, DOC_DPS0_ADDRLOW); + int dps0_high = doc_register_readb(docg3, DOC_DPS0_ADDRHIGH); + int dps1 = doc_register_readb(docg3, DOC_DPS1_STATUS); + int dps1_low = doc_register_readb(docg3, DOC_DPS1_ADDRLOW); + int dps1_high = doc_register_readb(docg3, DOC_DPS1_ADDRHIGH); + + pos += seq_printf(s, "Protection = 0x%02x (", + protect); + if (protect & DOC_PROTECT_FOUNDRY_OTP_LOCK) + pos += seq_printf(s, "FOUNDRY_OTP_LOCK,"); + if (protect & DOC_PROTECT_CUSTOMER_OTP_LOCK) + pos += seq_printf(s, "CUSTOMER_OTP_LOCK,"); + if (protect & DOC_PROTECT_LOCK_INPUT) + pos += seq_printf(s, "LOCK_INPUT,"); + if (protect & DOC_PROTECT_STICKY_LOCK) + pos += seq_printf(s, "STICKY_LOCK,"); + if (protect & DOC_PROTECT_PROTECTION_ENABLED) + pos += seq_printf(s, "PROTECTION ON,"); + if (protect & DOC_PROTECT_IPL_DOWNLOAD_LOCK) + pos += seq_printf(s, "IPL_DOWNLOAD_LOCK,"); + if (protect & DOC_PROTECT_PROTECTION_ERROR) + pos += seq_printf(s, "PROTECT_ERR,"); + else + pos += seq_printf(s, "NO_PROTECT_ERR"); + pos += seq_printf(s, ")\n"); + + pos += seq_printf(s, "DPS0 = 0x%02x : " + "Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, " + "WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n", + dps0, dps0_low, dps0_high, + !!(dps0 & DOC_DPS_OTP_PROTECTED), + !!(dps0 & DOC_DPS_READ_PROTECTED), + !!(dps0 & DOC_DPS_WRITE_PROTECTED), + !!(dps0 & DOC_DPS_HW_LOCK_ENABLED), + !!(dps0 & DOC_DPS_KEY_OK)); + pos += seq_printf(s, "DPS1 = 0x%02x : " + "Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, " + "WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n", + dps1, dps1_low, dps1_high, + !!(dps1 & DOC_DPS_OTP_PROTECTED), + !!(dps1 & DOC_DPS_READ_PROTECTED), + !!(dps1 & DOC_DPS_WRITE_PROTECTED), + !!(dps1 & DOC_DPS_HW_LOCK_ENABLED), + !!(dps1 & DOC_DPS_KEY_OK)); + return pos; +} +DEBUGFS_RO_ATTR(protection, dbg_protection_show); + +static int __init doc_dbg_register(struct docg3 *docg3) +{ + struct dentry *root, *entry; + + root = debugfs_create_dir("docg3", NULL); + if (!root) + return -ENOMEM; + + entry = debugfs_create_file("flashcontrol", S_IRUSR, root, docg3, + &flashcontrol_fops); + if (entry) + entry = debugfs_create_file("asic_mode", S_IRUSR, root, + docg3, &asic_mode_fops); + if (entry) + entry = debugfs_create_file("device_id", S_IRUSR, root, + docg3, &device_id_fops); + if (entry) + entry = debugfs_create_file("protection", S_IRUSR, root, + docg3, &protection_fops); + if (entry) { + docg3->debugfs_root = root; + return 0; + } else { + debugfs_remove_recursive(root); + return -ENOMEM; + } +} + +static void __exit doc_dbg_unregister(struct docg3 *docg3) +{ + debugfs_remove_recursive(docg3->debugfs_root); +} + +/** + * doc_set_driver_info - Fill the mtd_info structure and docg3 structure + * @chip_id: The chip ID of the supported chip + * @mtd: The structure to fill + */ +static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd) +{ + struct docg3 *docg3 = mtd->priv; + int cfg; + + cfg = doc_register_readb(docg3, DOC_CONFIGURATION); + docg3->if_cfg = (cfg & DOC_CONF_IF_CFG ? 1 : 0); + + switch (chip_id) { + case DOC_CHIPID_G3: + mtd->name = "DiskOnChip G3"; + docg3->max_block = 2047; + break; + } + mtd->type = MTD_NANDFLASH; + /* + * Once write methods are added, the correct flags will be set. + * mtd->flags = MTD_CAP_NANDFLASH; + */ + mtd->flags = MTD_CAP_ROM; + mtd->size = (docg3->max_block + 1) * DOC_LAYOUT_BLOCK_SIZE; + mtd->erasesize = DOC_LAYOUT_BLOCK_SIZE * DOC_LAYOUT_NBPLANES; + mtd->writesize = DOC_LAYOUT_PAGE_SIZE; + mtd->oobsize = DOC_LAYOUT_OOB_SIZE; + mtd->owner = THIS_MODULE; + mtd->erase = NULL; + mtd->point = NULL; + mtd->unpoint = NULL; + mtd->read = doc_read; + mtd->write = NULL; + mtd->read_oob = doc_read_oob; + mtd->write_oob = NULL; + mtd->sync = NULL; + mtd->block_isbad = doc_block_isbad; +} + +/** + * doc_probe - Probe the IO space for a DiskOnChip G3 chip + * @pdev: platform device + * + * Probes for a G3 chip at the specified IO space in the platform data + * ressources. + * + * Returns 0 on success, -ENOMEM, -ENXIO on error + */ +static int __init docg3_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct docg3 *docg3; + struct mtd_info *mtd; + struct resource *ress; + int ret, bbt_nbpages; + u16 chip_id, chip_id_inv; + + ret = -ENOMEM; + docg3 = kzalloc(sizeof(struct docg3), GFP_KERNEL); + if (!docg3) + goto nomem1; + mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL); + if (!mtd) + goto nomem2; + mtd->priv = docg3; + + ret = -ENXIO; + ress = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!ress) { + dev_err(dev, "No I/O memory resource defined\n"); + goto noress; + } + docg3->base = ioremap(ress->start, DOC_IOSPACE_SIZE); + + docg3->dev = &pdev->dev; + docg3->device_id = 0; + doc_set_device_id(docg3, docg3->device_id); + doc_set_asic_mode(docg3, DOC_ASICMODE_RESET); + doc_set_asic_mode(docg3, DOC_ASICMODE_NORMAL); + + chip_id = doc_register_readw(docg3, DOC_CHIPID); + chip_id_inv = doc_register_readw(docg3, DOC_CHIPID_INV); + + ret = -ENODEV; + if (chip_id != (u16)(~chip_id_inv)) { + doc_info("No device found at IO addr %p\n", + (void *)ress->start); + goto nochipfound; + } + + switch (chip_id) { + case DOC_CHIPID_G3: + doc_info("Found a G3 DiskOnChip at addr %p\n", + (void *)ress->start); + break; + default: + doc_err("Chip id %04x is not a DiskOnChip G3 chip\n", chip_id); + goto nochipfound; + } + + doc_set_driver_info(chip_id, mtd); + platform_set_drvdata(pdev, mtd); + + ret = -ENOMEM; + bbt_nbpages = DIV_ROUND_UP(docg3->max_block + 1, + 8 * DOC_LAYOUT_PAGE_SIZE); + docg3->bbt = kzalloc(bbt_nbpages * DOC_LAYOUT_PAGE_SIZE, GFP_KERNEL); + if (!docg3->bbt) + goto nochipfound; + doc_reload_bbt(docg3); + + ret = mtd_device_parse_register(mtd, part_probes, + NULL, NULL, 0); + if (ret) + goto register_error; + + doc_dbg_register(docg3); + return 0; + +register_error: + kfree(docg3->bbt); +nochipfound: + iounmap(docg3->base); +noress: + kfree(mtd); +nomem2: + kfree(docg3); +nomem1: + return ret; +} + +/** + * docg3_release - Release the driver + * @pdev: the platform device + * + * Returns 0 + */ +static int __exit docg3_release(struct platform_device *pdev) +{ + struct mtd_info *mtd = platform_get_drvdata(pdev); + struct docg3 *docg3 = mtd->priv; + + doc_dbg_unregister(docg3); + mtd_device_unregister(mtd); + iounmap(docg3->base); + kfree(docg3->bbt); + kfree(docg3); + kfree(mtd); + return 0; +} + +static struct platform_driver g3_driver = { + .driver = { + .name = "docg3", + .owner = THIS_MODULE, + }, + .remove = __exit_p(docg3_release), +}; + +static int __init docg3_init(void) +{ + return platform_driver_probe(&g3_driver, docg3_probe); +} +module_init(docg3_init); + + +static void __exit docg3_exit(void) +{ + platform_driver_unregister(&g3_driver); +} +module_exit(docg3_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Robert Jarzmik "); +MODULE_DESCRIPTION("MTD driver for DiskOnChip G3"); diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h new file mode 100644 index 000000000000..0d407be24594 --- /dev/null +++ b/drivers/mtd/devices/docg3.h @@ -0,0 +1,297 @@ +/* + * Handles the M-Systems DiskOnChip G3 chip + * + * Copyright (C) 2011 Robert Jarzmik + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#ifndef _MTD_DOCG3_H +#define _MTD_DOCG3_H + +/* + * Flash memory areas : + * - 0x0000 .. 0x07ff : IPL + * - 0x0800 .. 0x0fff : Data area + * - 0x1000 .. 0x17ff : Registers + * - 0x1800 .. 0x1fff : Unknown + */ +#define DOC_IOSPACE_IPL 0x0000 +#define DOC_IOSPACE_DATA 0x0800 +#define DOC_IOSPACE_SIZE 0x2000 + +/* + * DOC G3 layout and adressing scheme + * A page address for the block "b", plane "P" and page "p": + * address = [bbbb bPpp pppp] + */ + +#define DOC_ADDR_PAGE_MASK 0x3f +#define DOC_ADDR_BLOCK_SHIFT 6 +#define DOC_LAYOUT_NBPLANES 2 +#define DOC_LAYOUT_PAGES_PER_BLOCK 64 +#define DOC_LAYOUT_PAGE_SIZE 512 +#define DOC_LAYOUT_OOB_SIZE 16 +#define DOC_LAYOUT_WEAR_SIZE 8 +#define DOC_LAYOUT_PAGE_OOB_SIZE \ + (DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_SIZE) +#define DOC_LAYOUT_WEAR_OFFSET (DOC_LAYOUT_PAGE_OOB_SIZE * 2) +#define DOC_LAYOUT_BLOCK_SIZE \ + (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_PAGE_SIZE) +#define DOC_ECC_BCH_SIZE 7 +#define DOC_ECC_BCH_COVERED_BYTES \ + (DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_PAGEINFO_SZ + \ + DOC_LAYOUT_OOB_HAMMING_SZ + DOC_LAYOUT_OOB_BCH_SZ) + +/* + * Blocks distribution + */ +#define DOC_LAYOUT_BLOCK_BBT 0 +#define DOC_LAYOUT_BLOCK_OTP 0 +#define DOC_LAYOUT_BLOCK_FIRST_DATA 6 + +#define DOC_LAYOUT_PAGE_BBT 4 + +/* + * Extra page OOB (16 bytes wide) layout + */ +#define DOC_LAYOUT_OOB_PAGEINFO_OFS 0 +#define DOC_LAYOUT_OOB_HAMMING_OFS 7 +#define DOC_LAYOUT_OOB_BCH_OFS 8 +#define DOC_LAYOUT_OOB_UNUSED_OFS 15 +#define DOC_LAYOUT_OOB_PAGEINFO_SZ 7 +#define DOC_LAYOUT_OOB_HAMMING_SZ 1 +#define DOC_LAYOUT_OOB_BCH_SZ 7 +#define DOC_LAYOUT_OOB_UNUSED_SZ 1 + + +#define DOC_CHIPID_G3 0x200 +#define DOC_ERASE_MARK 0xaa +/* + * Flash registers + */ +#define DOC_CHIPID 0x1000 +#define DOC_TEST 0x1004 +#define DOC_BUSLOCK 0x1006 +#define DOC_ENDIANCONTROL 0x1008 +#define DOC_DEVICESELECT 0x100a +#define DOC_ASICMODE 0x100c +#define DOC_CONFIGURATION 0x100e +#define DOC_INTERRUPTCONTROL 0x1010 +#define DOC_READADDRESS 0x101a +#define DOC_DATAEND 0x101e +#define DOC_INTERRUPTSTATUS 0x1020 + +#define DOC_FLASHSEQUENCE 0x1032 +#define DOC_FLASHCOMMAND 0x1034 +#define DOC_FLASHADDRESS 0x1036 +#define DOC_FLASHCONTROL 0x1038 +#define DOC_NOP 0x103e + +#define DOC_ECCCONF0 0x1040 +#define DOC_ECCCONF1 0x1042 +#define DOC_ECCPRESET 0x1044 +#define DOC_HAMMINGPARITY 0x1046 +#define DOC_BCH_SYNDROM(idx) (0x1048 + (idx << 1)) + +#define DOC_PROTECTION 0x1056 +#define DOC_DPS0_ADDRLOW 0x1060 +#define DOC_DPS0_ADDRHIGH 0x1062 +#define DOC_DPS1_ADDRLOW 0x1064 +#define DOC_DPS1_ADDRHIGH 0x1066 +#define DOC_DPS0_STATUS 0x106c +#define DOC_DPS1_STATUS 0x106e + +#define DOC_ASICMODECONFIRM 0x1072 +#define DOC_CHIPID_INV 0x1074 + +/* + * Flash sequences + * A sequence is preset before one or more commands are input to the chip. + */ +#define DOC_SEQ_RESET 0x00 +#define DOC_SEQ_PAGE_SIZE_532 0x03 +#define DOC_SEQ_SET_MODE 0x09 +#define DOC_SEQ_READ 0x12 +#define DOC_SEQ_SET_PLANE1 0x0e +#define DOC_SEQ_SET_PLANE2 0x10 +#define DOC_SEQ_PAGE_SETUP 0x1d + +/* + * Flash commands + */ +#define DOC_CMD_READ_PLANE1 0x00 +#define DOC_CMD_SET_ADDR_READ 0x05 +#define DOC_CMD_READ_ALL_PLANES 0x30 +#define DOC_CMD_READ_PLANE2 0x50 +#define DOC_CMD_READ_FLASH 0xe0 +#define DOC_CMD_PAGE_SIZE_532 0x3c + +#define DOC_CMD_PROG_BLOCK_ADDR 0x60 +#define DOC_CMD_PROG_CYCLE1 0x80 +#define DOC_CMD_PROG_CYCLE2 0x10 +#define DOC_CMD_ERASECYCLE2 0xd0 + +#define DOC_CMD_RELIABLE_MODE 0x22 +#define DOC_CMD_FAST_MODE 0xa2 + +#define DOC_CMD_RESET 0xff + +/* + * Flash register : DOC_FLASHCONTROL + */ +#define DOC_CTRL_VIOLATION 0x20 +#define DOC_CTRL_CE 0x10 +#define DOC_CTRL_UNKNOWN_BITS 0x08 +#define DOC_CTRL_PROTECTION_ERROR 0x04 +#define DOC_CTRL_SEQUENCE_ERROR 0x02 +#define DOC_CTRL_FLASHREADY 0x01 + +/* + * Flash register : DOC_ASICMODE + */ +#define DOC_ASICMODE_RESET 0x00 +#define DOC_ASICMODE_NORMAL 0x01 +#define DOC_ASICMODE_POWERDOWN 0x02 +#define DOC_ASICMODE_MDWREN 0x04 +#define DOC_ASICMODE_BDETCT_RESET 0x08 +#define DOC_ASICMODE_RSTIN_RESET 0x10 +#define DOC_ASICMODE_RAM_WE 0x20 + +/* + * Flash register : DOC_ECCCONF0 + */ +#define DOC_ECCCONF0_READ_MODE 0x8000 +#define DOC_ECCCONF0_AUTO_ECC_ENABLE 0x4000 +#define DOC_ECCCONF0_HAMMING_ENABLE 0x1000 +#define DOC_ECCCONF0_BCH_ENABLE 0x0800 +#define DOC_ECCCONF0_DATA_BYTES_MASK 0x07ff + +/* + * Flash register : DOC_ECCCONF1 + */ +#define DOC_ECCCONF1_BCH_SYNDROM_ERR 0x80 +#define DOC_ECCCONF1_UNKOWN1 0x40 +#define DOC_ECCCONF1_UNKOWN2 0x20 +#define DOC_ECCCONF1_UNKOWN3 0x10 +#define DOC_ECCCONF1_HAMMING_BITS_MASK 0x0f + +/* + * Flash register : DOC_PROTECTION + */ +#define DOC_PROTECT_FOUNDRY_OTP_LOCK 0x01 +#define DOC_PROTECT_CUSTOMER_OTP_LOCK 0x02 +#define DOC_PROTECT_LOCK_INPUT 0x04 +#define DOC_PROTECT_STICKY_LOCK 0x08 +#define DOC_PROTECT_PROTECTION_ENABLED 0x10 +#define DOC_PROTECT_IPL_DOWNLOAD_LOCK 0x20 +#define DOC_PROTECT_PROTECTION_ERROR 0x80 + +/* + * Flash register : DOC_DPS0_STATUS and DOC_DPS1_STATUS + */ +#define DOC_DPS_OTP_PROTECTED 0x01 +#define DOC_DPS_READ_PROTECTED 0x02 +#define DOC_DPS_WRITE_PROTECTED 0x04 +#define DOC_DPS_HW_LOCK_ENABLED 0x08 +#define DOC_DPS_KEY_OK 0x80 + +/* + * Flash register : DOC_CONFIGURATION + */ +#define DOC_CONF_IF_CFG 0x80 +#define DOC_CONF_MAX_ID_MASK 0x30 +#define DOC_CONF_VCCQ_3V 0x01 + +/* + * Flash register : DOC_READADDRESS + */ +#define DOC_READADDR_INC 0x8000 +#define DOC_READADDR_ONE_BYTE 0x4000 +#define DOC_READADDR_ADDR_MASK 0x1fff + +/** + * struct docg3 - DiskOnChip driver private data + * @dev: the device currently under control + * @base: mapped IO space + * @device_id: number of the cascaded DoCG3 device (0, 1, 2 or 3) + * @if_cfg: if true, reads are on 16bits, else reads are on 8bits + * @bbt: bad block table cache + * @debugfs_root: debugfs root node + */ +struct docg3 { + struct device *dev; + void __iomem *base; + unsigned int device_id:4; + unsigned int if_cfg:1; + int max_block; + u8 *bbt; + struct dentry *debugfs_root; +}; + +#define doc_err(fmt, arg...) dev_err(docg3->dev, (fmt), ## arg) +#define doc_info(fmt, arg...) dev_info(docg3->dev, (fmt), ## arg) +#define doc_dbg(fmt, arg...) dev_dbg(docg3->dev, (fmt), ## arg) +#define doc_vdbg(fmt, arg...) dev_vdbg(docg3->dev, (fmt), ## arg) + +#define DEBUGFS_RO_ATTR(name, show_fct) \ + static int name##_open(struct inode *inode, struct file *file) \ + { return single_open(file, show_fct, inode->i_private); } \ + static const struct file_operations name##_fops = { \ + .owner = THIS_MODULE, \ + .open = name##_open, \ + .llseek = seq_lseek, \ + .read = seq_read, \ + .release = single_release \ + }; +#endif + +/* + * Trace events part + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM docg3 + +#if !defined(_MTD_DOCG3_TRACE) || defined(TRACE_HEADER_MULTI_READ) +#define _MTD_DOCG3_TRACE + +#include + +TRACE_EVENT(docg3_io, + TP_PROTO(int op, int width, u16 reg, int val), + TP_ARGS(op, width, reg, val), + TP_STRUCT__entry( + __field(int, op) + __field(unsigned char, width) + __field(u16, reg) + __field(int, val)), + TP_fast_assign( + __entry->op = op; + __entry->width = width; + __entry->reg = reg; + __entry->val = val;), + TP_printk("docg3: %s%02d reg=%04x, val=%04x", + __entry->op ? "write" : "read", __entry->width, + __entry->reg, __entry->val) + ); +#endif + +/* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE docg3 +#include -- cgit v1.2.3 From dda1852802a6cc6fdecb9021e491b2de680c76b9 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 14 Oct 2011 12:13:05 -0400 Subject: xen/blkback: Check for proper operation. The patch titled: "xen/blkback: Fix the inhibition to map pages when discarding sector ranges." had the right idea except that it used the wrong comparison operator. It had == instead of !=. This fixes the bug where all (except discard) operations would have been ignored. Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 53c81de6f886..a1ee2659d2bc 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -707,7 +707,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif, * the hypercall to unmap the grants - that is all done in * xen_blkbk_unmap. */ - if (operation == REQ_DISCARD && xen_blkbk_map(req, pending_req, seg)) + if (operation != REQ_DISCARD && xen_blkbk_map(req, pending_req, seg)) goto fail_flush; /* -- cgit v1.2.3 From 2389d674bfd42aa26cbbf6064ed48ee9a87a5c7e Mon Sep 17 00:00:00 2001 From: Mika Westerberg Date: Sun, 16 Oct 2011 11:19:30 +0300 Subject: dmaengine/ep93xx_dma: add module.h include Due to module.h cleanup it is not anymore included implicitly. Drivers who want to use it need to include it explicitly. Signed-off-by: Mika Westerberg Signed-off-by: Vinod Koul --- drivers/dma/ep93xx_dma.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c index 5d7a49bd7c26..b47e2b803faf 100644 --- a/drivers/dma/ep93xx_dma.c +++ b/drivers/dma/ep93xx_dma.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From 57468a646e513bd88aeaa322eee2a8a960df91fc Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 1 Oct 2011 22:03:46 +0200 Subject: mtd: nand_h1900 never worked This driver has been broken through all of git history and cannot even be built. Better mark it as broken. Next stop is removing from the tree. Signed-off-by: Arnd Bergmann Acked-by: Eric Miao Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 42b7b861c74a..22db2b9114d7 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -85,7 +85,7 @@ config MTD_NAND_DENALI_SCRATCH_REG_ADDR config MTD_NAND_H1900 tristate "iPAQ H1900 flash" - depends on ARCH_PXA + depends on ARCH_PXA && BROKEN help This enables the driver for the iPAQ h1900 flash. -- cgit v1.2.3 From 4598fc2c94b68740e0269db03c98a1e7ad5af773 Mon Sep 17 00:00:00 2001 From: Vinod Koul Date: Mon, 10 Oct 2011 12:33:59 +0530 Subject: dmaengine: mid_dma: mask_peripheral_interrupt only when dmac is idle The mask_peripheral_interrupt is called when channel wants to mask the interrupt. Move this to suspend as this masking affects other channels as well. Not touching unmask here and unmask would still be done of first channel use Signed-off-by: Vinod Koul --- drivers/dma/intel_mid_dma.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c index cf74a664c5e0..9e96c43a846a 100644 --- a/drivers/dma/intel_mid_dma.c +++ b/drivers/dma/intel_mid_dma.c @@ -115,16 +115,15 @@ DMAC1 interrupt Functions*/ /** * dmac1_mask_periphral_intr - mask the periphral interrupt - * @midc: dma channel for which masking is required + * @mid: dma device for which masking is required * * Masks the DMA periphral interrupt * this is valid for DMAC1 family controllers only * This controller should have periphral mask registers already mapped */ -static void dmac1_mask_periphral_intr(struct intel_mid_dma_chan *midc) +static void dmac1_mask_periphral_intr(struct middma_device *mid) { u32 pimr; - struct middma_device *mid = to_middma_device(midc->chan.device); if (mid->pimr_mask) { pimr = readl(mid->mask_reg + LNW_PERIPHRAL_MASK); @@ -184,7 +183,6 @@ static void enable_dma_interrupt(struct intel_mid_dma_chan *midc) static void disable_dma_interrupt(struct intel_mid_dma_chan *midc) { /*Check LPE PISR, make sure fwd is disabled*/ - dmac1_mask_periphral_intr(midc); iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_BLOCK); iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_TFR); iowrite32(MASK_INTR_REG(midc->ch_id), midc->dma_base + MASK_ERR); @@ -1348,6 +1346,7 @@ int dma_suspend(struct pci_dev *pci, pm_message_t state) if (device->ch[i].in_use) return -EAGAIN; } + dmac1_mask_periphral_intr(device); device->state = SUSPENDED; pci_save_state(pci); pci_disable_device(pci); -- cgit v1.2.3 From 5f949137952020214cd167093dd7be448f21c079 Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Fri, 14 Oct 2011 15:49:00 +0800 Subject: mtd: m25p80: don't probe device which has status of 'disabled' On some platforms such as P3060QDS, has multiple spi flashes, but they are not available at same time, so if their status is 'disabled', which is set by u-boot, will not be probed. Signed-off-by: Shaohui Xie Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/m25p80.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c index 02aecacd1994..884904d3f9d2 100644 --- a/drivers/mtd/devices/m25p80.c +++ b/drivers/mtd/devices/m25p80.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -823,6 +824,11 @@ static int __devinit m25p_probe(struct spi_device *spi) unsigned i; struct mtd_part_parser_data ppdata; +#ifdef CONFIG_MTD_OF_PARTS + if (!of_device_is_available(spi->dev.of_node)) + return -ENODEV; +#endif + /* Platform data helps sort out which chip type we have, as * well as how this board partitions it. If we don't have * a chip ID, try the JEDEC id commands; they'll work for most -- cgit v1.2.3 From d5de1907d0af22e1a02de2b16a624148517a39c2 Mon Sep 17 00:00:00 2001 From: Andres Salomon Date: Fri, 14 Oct 2011 07:33:20 -0700 Subject: mtd: provide an alias for the redboot module name parse_mtd_partitions takes a list of partition types; if the driver isn't loaded, it attempts to load it, and then it grabs the partition parser. For redboot, the module name is "redboot.ko", while the parser name is "RedBoot". Since modprobe is case-sensitive, attempting to modprobe "RedBoot" will never work. I suspect the embedded systems that make use of redboot just always manually loaded redboot prior to loading their specific nand chip drivers (or statically compiled it in). Signed-off-by: Andres Salomon Signed-off-by: Artem Bityutskiy Cc: stable@kernel.org --- drivers/mtd/redboot.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 56e48ea7ff05..f40ba8610625 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -296,6 +296,9 @@ static struct mtd_part_parser redboot_parser = { .name = "RedBoot", }; +/* mtd parsers will request the module by parser name */ +MODULE_ALIAS("RedBoot"); + static int __init redboot_parser_init(void) { return register_mtd_parser(&redboot_parser); -- cgit v1.2.3 From 23b1a99b87f3fc9e4242b98b2af3c9bed210f048 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Fri, 14 Oct 2011 20:09:33 -0700 Subject: mtd: nand: initialize ops.mode Our `ops' information was converted to a local variable recently, and apparently, old code relied on the fact that the global version was often left in a valid mode. We can't make this assumption on local structs, and we shouldn't be relying on a previous state anyway. Instead, we initialize mode to 0 for don't-care situations (i.e., the operation does not use OOB anyway) and MTD_OPS_PLACE_OOB when we want to place OOB data. This fixes a bug with nand_default_block_markbad(), where we catch on the BUG() call in nand_fill_oob(): Kernel bug detected[#1]: ... Call Trace: [<80307350>] nand_fill_oob.clone.5+0xa4/0x15c [<803075d8>] nand_do_write_oob+0x1d0/0x260 [<803077c4>] nand_default_block_markbad+0x15c/0x1a8 [<802e8c2c>] part_block_markbad+0x80/0x98 [<802ebc74>] mtd_ioctl+0x6d8/0xbd0 [<802ec1a4>] mtd_unlocked_ioctl+0x38/0x5c [<800d9c60>] do_vfs_ioctl+0xa4/0x6e4 [<800da2e4>] sys_ioctl+0x44/0xa0 [<8001381c>] stack_done+0x20/0x40 Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/nand/nand_base.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 51653d9e1438..3ed9c5e4d34e 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -420,6 +420,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs) ops.datbuf = NULL; ops.oobbuf = buf; ops.ooboffs = chip->badblockpos & ~0x01; + ops.mode = MTD_OPS_PLACE_OOB; do { ret = nand_do_write_oob(mtd, ofs, &ops); @@ -1596,6 +1597,7 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, ops.len = len; ops.datbuf = buf; ops.oobbuf = NULL; + ops.mode = 0; ret = nand_do_read_ops(mtd, from, &ops); @@ -2306,6 +2308,7 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len, ops.len = len; ops.datbuf = (uint8_t *)buf; ops.oobbuf = NULL; + ops.mode = 0; ret = nand_do_write_ops(mtd, to, &ops); @@ -2341,6 +2344,7 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, ops.len = len; ops.datbuf = (uint8_t *)buf; ops.oobbuf = NULL; + ops.mode = 0; ret = nand_do_write_ops(mtd, to, &ops); -- cgit v1.2.3 From 456be1484ffc72a24bdb4200b5847c4fa90139d9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 17 Oct 2011 12:57:20 +0200 Subject: loop: remove the incorrect write_begin/write_end shortcut Currently the loop device tries to call directly into write_begin/write_end instead of going through ->write if it can. This is a fairly nasty shortcut as write_begin and write_end are only callbacks for the generic write code and expect to be called with filesystem specific locks held. This code currently causes various issues for clustered filesystems as it doesn't take the required cluster locks, and it also causes issues for XFS as it doesn't properly lock against the swapext ioctl as called by the defragmentation tools. This in case causes data corruption if defragmentation hits a busy loop device in the wrong time window, as reported by RH QA. The reason why we have this shortcut is that it saves a data copy when doing a transformation on the loop device, which is the technical term for using cryptoloop (or an XOR transformation). Given that cryptoloop has been deprecated in favour of dm-crypt my opinion is that we should simply drop this shortcut instead of finding complicated ways to to introduce a formal interface for this shortcut. Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- drivers/block/loop.c | 135 +++++++++------------------------------------------ 1 file changed, 23 insertions(+), 112 deletions(-) (limited to 'drivers') diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 4720c7ade0ae..46cdd6945557 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -202,74 +202,6 @@ lo_do_transfer(struct loop_device *lo, int cmd, return lo->transfer(lo, cmd, rpage, roffs, lpage, loffs, size, rblock); } -/** - * do_lo_send_aops - helper for writing data to a loop device - * - * This is the fast version for backing filesystems which implement the address - * space operations write_begin and write_end. - */ -static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec, - loff_t pos, struct page *unused) -{ - struct file *file = lo->lo_backing_file; /* kudos to NFsckingS */ - struct address_space *mapping = file->f_mapping; - pgoff_t index; - unsigned offset, bv_offs; - int len, ret; - - mutex_lock(&mapping->host->i_mutex); - index = pos >> PAGE_CACHE_SHIFT; - offset = pos & ((pgoff_t)PAGE_CACHE_SIZE - 1); - bv_offs = bvec->bv_offset; - len = bvec->bv_len; - while (len > 0) { - sector_t IV; - unsigned size, copied; - int transfer_result; - struct page *page; - void *fsdata; - - IV = ((sector_t)index << (PAGE_CACHE_SHIFT - 9))+(offset >> 9); - size = PAGE_CACHE_SIZE - offset; - if (size > len) - size = len; - - ret = pagecache_write_begin(file, mapping, pos, size, 0, - &page, &fsdata); - if (ret) - goto fail; - - file_update_time(file); - - transfer_result = lo_do_transfer(lo, WRITE, page, offset, - bvec->bv_page, bv_offs, size, IV); - copied = size; - if (unlikely(transfer_result)) - copied = 0; - - ret = pagecache_write_end(file, mapping, pos, size, copied, - page, fsdata); - if (ret < 0 || ret != copied) - goto fail; - - if (unlikely(transfer_result)) - goto fail; - - bv_offs += copied; - len -= copied; - offset = 0; - index++; - pos += copied; - } - ret = 0; -out: - mutex_unlock(&mapping->host->i_mutex); - return ret; -fail: - ret = -1; - goto out; -} - /** * __do_lo_send_write - helper for writing data to a loop device * @@ -297,10 +229,8 @@ static int __do_lo_send_write(struct file *file, /** * do_lo_send_direct_write - helper for writing data to a loop device * - * This is the fast, non-transforming version for backing filesystems which do - * not implement the address space operations write_begin and write_end. - * It uses the write file operation which should be present on all writeable - * filesystems. + * This is the fast, non-transforming version that does not need double + * buffering. */ static int do_lo_send_direct_write(struct loop_device *lo, struct bio_vec *bvec, loff_t pos, struct page *page) @@ -316,15 +246,9 @@ static int do_lo_send_direct_write(struct loop_device *lo, /** * do_lo_send_write - helper for writing data to a loop device * - * This is the slow, transforming version for filesystems which do not - * implement the address space operations write_begin and write_end. It - * uses the write file operation which should be present on all writeable - * filesystems. - * - * Using fops->write is slower than using aops->{prepare,commit}_write in the - * transforming case because we need to double buffer the data as we cannot do - * the transformations in place as we do not have direct access to the - * destination pages of the backing file. + * This is the slow, transforming version that needs to double buffer the + * data as it cannot do the transformations in place without having direct + * access to the destination pages of the backing file. */ static int do_lo_send_write(struct loop_device *lo, struct bio_vec *bvec, loff_t pos, struct page *page) @@ -350,17 +274,16 @@ static int lo_send(struct loop_device *lo, struct bio *bio, loff_t pos) struct page *page = NULL; int i, ret = 0; - do_lo_send = do_lo_send_aops; - if (!(lo->lo_flags & LO_FLAGS_USE_AOPS)) { + if (lo->transfer != transfer_none) { + page = alloc_page(GFP_NOIO | __GFP_HIGHMEM); + if (unlikely(!page)) + goto fail; + kmap(page); + do_lo_send = do_lo_send_write; + } else { do_lo_send = do_lo_send_direct_write; - if (lo->transfer != transfer_none) { - page = alloc_page(GFP_NOIO | __GFP_HIGHMEM); - if (unlikely(!page)) - goto fail; - kmap(page); - do_lo_send = do_lo_send_write; - } } + bio_for_each_segment(bvec, bio, i) { ret = do_lo_send(lo, bvec, pos, page); if (ret < 0) @@ -849,35 +772,23 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode, mapping = file->f_mapping; inode = mapping->host; - if (!(file->f_mode & FMODE_WRITE)) - lo_flags |= LO_FLAGS_READ_ONLY; - error = -EINVAL; - if (S_ISREG(inode->i_mode) || S_ISBLK(inode->i_mode)) { - const struct address_space_operations *aops = mapping->a_ops; - - if (aops->write_begin) - lo_flags |= LO_FLAGS_USE_AOPS; - if (!(lo_flags & LO_FLAGS_USE_AOPS) && !file->f_op->write) - lo_flags |= LO_FLAGS_READ_ONLY; + if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode)) + goto out_putf; - lo_blocksize = S_ISBLK(inode->i_mode) ? - inode->i_bdev->bd_block_size : PAGE_SIZE; + if (!(file->f_mode & FMODE_WRITE) || !(mode & FMODE_WRITE) || + !file->f_op->write) + lo_flags |= LO_FLAGS_READ_ONLY; - error = 0; - } else { - goto out_putf; - } + lo_blocksize = S_ISBLK(inode->i_mode) ? + inode->i_bdev->bd_block_size : PAGE_SIZE; + error = -EFBIG; size = get_loop_size(lo, file); - - if ((loff_t)(sector_t)size != size) { - error = -EFBIG; + if ((loff_t)(sector_t)size != size) goto out_putf; - } - if (!(mode & FMODE_WRITE)) - lo_flags |= LO_FLAGS_READ_ONLY; + error = 0; set_device_ro(bdev, (lo_flags & LO_FLAGS_READ_ONLY) != 0); -- cgit v1.2.3 From 6927d92091df2848fc0e6a693a017d4b2df549c2 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Mon, 17 Oct 2011 14:27:48 -0400 Subject: xen/blkback: Fix two races in the handling of barrier requests. There are two windows of opportunity to cause a race when processing a barrier request. This patch fixes this. Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/blkback.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index a1ee2659d2bc..79efec24569b 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -456,15 +456,15 @@ static void xen_blk_drain_io(struct xen_blkif *blkif) { atomic_set(&blkif->drain, 1); do { + /* The initial value is one, and one refcnt taken at the + * start of the xen_blkif_schedule thread. */ + if (atomic_read(&blkif->refcnt) <= 2) + break; wait_for_completion_interruptible_timeout( &blkif->drain_complete, HZ); if (!atomic_read(&blkif->drain)) break; - /* The initial value is one, and one refcnt taken at the - * start of the xen_blkif_schedule thread. */ - if (atomic_read(&blkif->refcnt) <= 2) - break; } while (!kthread_should_stop()); atomic_set(&blkif->drain, 0); } @@ -502,11 +502,11 @@ static void __end_block_io_op(struct pending_req *pending_req, int error) make_response(pending_req->blkif, pending_req->id, pending_req->operation, pending_req->status); xen_blkif_put(pending_req->blkif); - free_req(pending_req); if (atomic_read(&pending_req->blkif->refcnt) <= 2) { if (atomic_read(&pending_req->blkif->drain)) complete(&pending_req->blkif->drain_complete); } + free_req(pending_req); } } -- cgit v1.2.3 From fbe92fcc7570eaba4bd5786cb1bbc5e693dba6bd Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 18 Oct 2011 08:46:50 +0900 Subject: gpio/samsung: Complain loudly if we don't know the SoC If we don't know the SoC type then we won't add any chips which is rather unfortunate as neither GPIO nor pinmux APIs will work, breaking lots of different subsystems. Logging at least provides a hint to the user as to what's gone wrong. Signed-off-by: Mark Brown Signed-off-by: Kukjin Kim --- drivers/gpio/gpio-samsung.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index 479edc3b8ea3..866251852719 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -2486,6 +2486,9 @@ static __init int samsung_gpiolib_init(void) s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS); s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS); #endif + } else { + WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n"); + return -ENODEV; } return 0; -- cgit v1.2.3 From ab5dbebe33e0c353e8545f09c34553ac3351dad6 Mon Sep 17 00:00:00 2001 From: Mike Miller Date: Thu, 20 Oct 2011 22:19:17 +0200 Subject: cciss: add small delay when using PCI Power Management to reset for kump The P600 requires a small delay when changing states. Otherwise we may think the board did not reset and we bail. This for kdump only and is particular to the P600. Cc: stable@kernel.org Signed-off-by: Jens Axboe --- drivers/block/cciss.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 6da7edea700a..486f94ef24d4 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4557,6 +4557,13 @@ static int cciss_controller_hard_reset(struct pci_dev *pdev, pmcsr &= ~PCI_PM_CTRL_STATE_MASK; pmcsr |= PCI_D0; pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr); + + /* + * The P600 requires a small delay when changing states. + * Otherwise we may think the board did not reset and we bail. + * This for kdump only and is particular to the P600. + */ + msleep(500); } return 0; } -- cgit v1.2.3 From c4853efec665134b2e6fc9c13447323240980351 Mon Sep 17 00:00:00 2001 From: Mike Miller Date: Fri, 21 Oct 2011 08:19:43 +0200 Subject: hpsa: add small delay when using PCI Power Management to reset for kump The P600 requires a small delay when changing states. Otherwise we may think the board did not reset and we bail. This for kdump only and is particular to the P600. Signed-off-by: Mike Miller Cc: stable@kernel.org Signed-off-by: Jens Axboe --- drivers/scsi/hpsa.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index ec61bdb833ac..381929813cbd 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -3283,6 +3283,13 @@ static int hpsa_controller_hard_reset(struct pci_dev *pdev, pmcsr &= ~PCI_PM_CTRL_STATE_MASK; pmcsr |= PCI_D0; pci_write_config_word(pdev, pos + PCI_PM_CTRL, pmcsr); + + /* + * The P600 requires a small delay when changing states. + * Otherwise we may think the board did not reset and we bail. + * This for kdump only and is particular to the P600. + */ + msleep(500); } return 0; } -- cgit v1.2.3 From 9562ad9ab36df7ccef920d119f3b5100025db95f Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Mon, 24 Oct 2011 16:11:30 +0200 Subject: block: Remove the control of complete cpu from bio. bio originally has the functionality to set the complete cpu, but it is broken. Chirstoph said that "This code is unused, and from the all the discussions lately pretty obviously broken. The only thing keeping it serves is creating more confusion and possibly more bugs." And Jens replied with "We can kill bio_set_completion_cpu(). I'm fine with leaving cpu control to the request based drivers, they are the only ones that can toggle the setting anyway". So this patch tries to remove all the work of controling complete cpu from a bio. Cc: Shaohua Li Cc: Christoph Hellwig Signed-off-by: Tao Ma Signed-off-by: Jens Axboe --- drivers/md/raid1.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index d4ddfa627301..2948a520f7ba 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2172,7 +2172,6 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i bio->bi_next = NULL; bio->bi_flags &= ~(BIO_POOL_MASK-1); bio->bi_flags |= 1 << BIO_UPTODATE; - bio->bi_comp_cpu = -1; bio->bi_rw = READ; bio->bi_vcnt = 0; bio->bi_idx = 0; -- cgit v1.2.3 From 2d073846b891c3f49c4ea03c5db3ac92f92742f1 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 29 Sep 2011 16:53:30 +0100 Subject: block: xen-blkback: use API provided by xenbus module to map rings The xenbus module provides xenbus_map_ring_valloc() and xenbus_map_ring_vfree(). Use these to map the ring pages granted by the frontend. Acked-by: Jens Axboe Signed-off-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/common.h | 5 +--- drivers/block/xen-blkback/xenbus.c | 54 +++++--------------------------------- 2 files changed, 8 insertions(+), 51 deletions(-) (limited to 'drivers') diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 00c57c90e2d6..7ec0e8896a78 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -139,7 +139,7 @@ struct xen_blkif { /* Comms information. */ enum blkif_protocol blk_protocol; union blkif_back_rings blk_rings; - struct vm_struct *blk_ring_area; + void *blk_ring; /* The VBD attached to this interface. */ struct xen_vbd vbd; /* Back pointer to the backend_info. */ @@ -163,9 +163,6 @@ struct xen_blkif { int st_wr_sect; wait_queue_head_t waiting_to_free; - - grant_handle_t shmem_handle; - grant_ref_t shmem_ref; }; diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 5fd2010f7d2b..69233dd42212 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -120,38 +120,6 @@ static struct xen_blkif *xen_blkif_alloc(domid_t domid) return blkif; } -static int map_frontend_page(struct xen_blkif *blkif, unsigned long shared_page) -{ - struct gnttab_map_grant_ref op; - - gnttab_set_map_op(&op, (unsigned long)blkif->blk_ring_area->addr, - GNTMAP_host_map, shared_page, blkif->domid); - - if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) - BUG(); - - if (op.status) { - DPRINTK("Grant table operation failure !\n"); - return op.status; - } - - blkif->shmem_ref = shared_page; - blkif->shmem_handle = op.handle; - - return 0; -} - -static void unmap_frontend_page(struct xen_blkif *blkif) -{ - struct gnttab_unmap_grant_ref op; - - gnttab_set_unmap_op(&op, (unsigned long)blkif->blk_ring_area->addr, - GNTMAP_host_map, blkif->shmem_handle); - - if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1)) - BUG(); -} - static int xen_blkif_map(struct xen_blkif *blkif, unsigned long shared_page, unsigned int evtchn) { @@ -161,35 +129,29 @@ static int xen_blkif_map(struct xen_blkif *blkif, unsigned long shared_page, if (blkif->irq) return 0; - blkif->blk_ring_area = alloc_vm_area(PAGE_SIZE); - if (!blkif->blk_ring_area) - return -ENOMEM; - - err = map_frontend_page(blkif, shared_page); - if (err) { - free_vm_area(blkif->blk_ring_area); + err = xenbus_map_ring_valloc(blkif->be->dev, shared_page, &blkif->blk_ring); + if (err < 0) return err; - } switch (blkif->blk_protocol) { case BLKIF_PROTOCOL_NATIVE: { struct blkif_sring *sring; - sring = (struct blkif_sring *)blkif->blk_ring_area->addr; + sring = (struct blkif_sring *)blkif->blk_ring; BACK_RING_INIT(&blkif->blk_rings.native, sring, PAGE_SIZE); break; } case BLKIF_PROTOCOL_X86_32: { struct blkif_x86_32_sring *sring_x86_32; - sring_x86_32 = (struct blkif_x86_32_sring *)blkif->blk_ring_area->addr; + sring_x86_32 = (struct blkif_x86_32_sring *)blkif->blk_ring; BACK_RING_INIT(&blkif->blk_rings.x86_32, sring_x86_32, PAGE_SIZE); break; } case BLKIF_PROTOCOL_X86_64: { struct blkif_x86_64_sring *sring_x86_64; - sring_x86_64 = (struct blkif_x86_64_sring *)blkif->blk_ring_area->addr; + sring_x86_64 = (struct blkif_x86_64_sring *)blkif->blk_ring; BACK_RING_INIT(&blkif->blk_rings.x86_64, sring_x86_64, PAGE_SIZE); break; } @@ -201,8 +163,7 @@ static int xen_blkif_map(struct xen_blkif *blkif, unsigned long shared_page, xen_blkif_be_int, 0, "blkif-backend", blkif); if (err < 0) { - unmap_frontend_page(blkif); - free_vm_area(blkif->blk_ring_area); + xenbus_unmap_ring_vfree(blkif->be->dev, blkif->blk_ring); blkif->blk_rings.common.sring = NULL; return err; } @@ -228,8 +189,7 @@ static void xen_blkif_disconnect(struct xen_blkif *blkif) } if (blkif->blk_rings.common.sring) { - unmap_frontend_page(blkif); - free_vm_area(blkif->blk_ring_area); + xenbus_unmap_ring_vfree(blkif->be->dev, blkif->blk_ring); blkif->blk_rings.common.sring = NULL; } } -- cgit v1.2.3 From c9d6369978411f690513994e6e53e2e6410874a4 Mon Sep 17 00:00:00 2001 From: David Vrabel Date: Thu, 29 Sep 2011 16:53:31 +0100 Subject: net: xen-netback: use API provided by xenbus module to map rings The xenbus module provides xenbus_map_ring_valloc() and xenbus_map_ring_vfree(). Use these to map the Tx and Rx ring pages granted by the frontend. Signed-off-by: David Vrabel Acked-by: David S. Miller Acked-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- drivers/net/xen-netback/common.h | 11 +++--- drivers/net/xen-netback/netback.c | 80 +++++++++------------------------------ 2 files changed, 22 insertions(+), 69 deletions(-) (limited to 'drivers') diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 161f207786a4..94b79c3338c4 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -58,10 +58,6 @@ struct xenvif { u8 fe_dev_addr[6]; /* Physical parameters of the comms window. */ - grant_handle_t tx_shmem_handle; - grant_ref_t tx_shmem_ref; - grant_handle_t rx_shmem_handle; - grant_ref_t rx_shmem_ref; unsigned int irq; /* List of frontends to notify after a batch of frames sent. */ @@ -70,8 +66,6 @@ struct xenvif { /* The shared rings and indexes. */ struct xen_netif_tx_back_ring tx; struct xen_netif_rx_back_ring rx; - struct vm_struct *tx_comms_area; - struct vm_struct *rx_comms_area; /* Frontend feature information. */ u8 can_sg:1; @@ -106,6 +100,11 @@ struct xenvif { wait_queue_head_t waiting_to_free; }; +static inline struct xenbus_device *xenvif_to_xenbus_device(struct xenvif *vif) +{ + return to_xenbus_device(vif->dev->dev.parent); +} + #define XEN_NETIF_TX_RING_SIZE __CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE) #define XEN_NETIF_RX_RING_SIZE __CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index fd00f25d9850..3af2924fe058 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -1577,88 +1577,42 @@ static int xen_netbk_kthread(void *data) void xen_netbk_unmap_frontend_rings(struct xenvif *vif) { - struct gnttab_unmap_grant_ref op; - - if (vif->tx.sring) { - gnttab_set_unmap_op(&op, (unsigned long)vif->tx_comms_area->addr, - GNTMAP_host_map, vif->tx_shmem_handle); - - if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1)) - BUG(); - } - - if (vif->rx.sring) { - gnttab_set_unmap_op(&op, (unsigned long)vif->rx_comms_area->addr, - GNTMAP_host_map, vif->rx_shmem_handle); - - if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1)) - BUG(); - } - if (vif->rx_comms_area) - free_vm_area(vif->rx_comms_area); - if (vif->tx_comms_area) - free_vm_area(vif->tx_comms_area); + if (vif->tx.sring) + xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(vif), + vif->tx.sring); + if (vif->rx.sring) + xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(vif), + vif->rx.sring); } int xen_netbk_map_frontend_rings(struct xenvif *vif, grant_ref_t tx_ring_ref, grant_ref_t rx_ring_ref) { - struct gnttab_map_grant_ref op; + void *addr; struct xen_netif_tx_sring *txs; struct xen_netif_rx_sring *rxs; int err = -ENOMEM; - vif->tx_comms_area = alloc_vm_area(PAGE_SIZE); - if (vif->tx_comms_area == NULL) + err = xenbus_map_ring_valloc(xenvif_to_xenbus_device(vif), + tx_ring_ref, &addr); + if (err) goto err; - vif->rx_comms_area = alloc_vm_area(PAGE_SIZE); - if (vif->rx_comms_area == NULL) - goto err; - - gnttab_set_map_op(&op, (unsigned long)vif->tx_comms_area->addr, - GNTMAP_host_map, tx_ring_ref, vif->domid); - - if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) - BUG(); - - if (op.status) { - netdev_warn(vif->dev, - "failed to map tx ring. err=%d status=%d\n", - err, op.status); - err = op.status; - goto err; - } - - vif->tx_shmem_ref = tx_ring_ref; - vif->tx_shmem_handle = op.handle; - - txs = (struct xen_netif_tx_sring *)vif->tx_comms_area->addr; + txs = (struct xen_netif_tx_sring *)addr; BACK_RING_INIT(&vif->tx, txs, PAGE_SIZE); - gnttab_set_map_op(&op, (unsigned long)vif->rx_comms_area->addr, - GNTMAP_host_map, rx_ring_ref, vif->domid); - - if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1)) - BUG(); - - if (op.status) { - netdev_warn(vif->dev, - "failed to map rx ring. err=%d status=%d\n", - err, op.status); - err = op.status; + err = xenbus_map_ring_valloc(xenvif_to_xenbus_device(vif), + rx_ring_ref, &addr); + if (err) goto err; - } - - vif->rx_shmem_ref = rx_ring_ref; - vif->rx_shmem_handle = op.handle; - vif->rx_req_cons_peek = 0; - rxs = (struct xen_netif_rx_sring *)vif->rx_comms_area->addr; + rxs = (struct xen_netif_rx_sring *)addr; BACK_RING_INIT(&vif->rx, rxs, PAGE_SIZE); + vif->rx_req_cons_peek = 0; + return 0; err: -- cgit v1.2.3 From c9abb9bb0b8451588509192bd53005d65c02986c Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 25 Oct 2011 06:43:29 +0000 Subject: target: Fix compile warning w/ missing module.h include MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch fixes the following compile warning in target_core_cdb.c in recent linux-next code due to the new use of EXPORT_SYMBOL() for target_get_task_cdb(). drivers/target/target_core_cdb.c:1316: warning: data definition has no type or storage class drivers/target/target_core_cdb.c:1316: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ drivers/target/target_core_cdb.c:1316: warning: parameter names (without types) in function declaration Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_cdb.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c index 575cf7216f52..38535eb13929 100644 --- a/drivers/target/target_core_cdb.c +++ b/drivers/target/target_core_cdb.c @@ -24,6 +24,7 @@ */ #include +#include #include #include -- cgit v1.2.3 From 8cd79f24350826b81e16990d9e12bc878e67d385 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Mon, 24 Oct 2011 13:35:37 -0700 Subject: tcm_loop: Add explict read buffer memset for SCF_SCSI_CONTROL_SG_IO_CDB This patch addresses an issue with buggy userspace code sending I/O via scsi-generic that does not explictly clear their associated read buffers. It adds an explict memset of the first SGL entry within tcm_loop_new_cmd_map() for SCF_SCSI_CONTROL_SG_IO_CDB payloads that are currently guaranteed to be a single SGL by target-core code. This issue is a side effect of the v3.1-rc1 merge to remove the extra memcpy between certain control CDB types using a contigious + cleared buffer in target-core, and performing a memcpy into the SGL list within tcm_loop. It was originally mainfesting itself by udev + scsi_id + scsi-generic not properly setting up the expected /dev/disk/by-id/ symlinks because the INQUIRY payload was containing extra bogus data preventing the proper NAA IEEE WWN from being parsed by userspace. Cc: Christoph Hellwig Cc: Andy Grover Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/loopback/tcm_loop.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers') diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index b15d8cbf630b..3c9c318f66ed 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -174,6 +174,24 @@ static int tcm_loop_new_cmd_map(struct se_cmd *se_cmd) sgl_bidi = sdb->table.sgl; sgl_bidi_count = sdb->table.nents; } + /* + * Because some userspace code via scsi-generic do not memset their + * associated read buffers, go ahead and do that here for type + * SCF_SCSI_CONTROL_SG_IO_CDB. Also note that this is currently + * guaranteed to be a single SGL for SCF_SCSI_CONTROL_SG_IO_CDB + * by target core in transport_generic_allocate_tasks() -> + * transport_generic_cmd_sequencer(). + */ + if (se_cmd->se_cmd_flags & SCF_SCSI_CONTROL_SG_IO_CDB && + se_cmd->data_direction == DMA_FROM_DEVICE) { + struct scatterlist *sg = scsi_sglist(sc); + unsigned char *buf = kmap(sg_page(sg)) + sg->offset; + + if (buf != NULL) { + memset(buf, 0, sg->length); + kunmap(sg_page(sg)); + } + } /* Tell the core about our preallocated memory */ ret = transport_generic_map_mem_to_cmd(se_cmd, scsi_sglist(sc), -- cgit v1.2.3 From f147abb475ab47ce620cf3d18de5b3192c9fa7ed Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 25 Oct 2011 23:57:41 -0700 Subject: target: Check -ENOMEM to signal QUEUE_FULL from fabric callbacks This patch changes target core to also check for -ENOMEM from fabric callbacks to signal QUEUE_FULL status, instead of just -EAGAIN in order to catch a larger set of fabric failure cases that want to trigger QUEUE_FULL logic. This includes the callbacks for ->write_pending(), ->queue_data_in() and ->queue_status(). It also makes transport_generic_write_pending() return zero upon QUEUE_FULL, and removes two unnecessary -EAGAIN checks to catch write pending QUEUE_FULL cases from transport_generic_new_cmd() failures in transport_handle_cdb_direct() and transport_processing_thread():TRANSPORT_NEW_CMD_MAP state. Reported-by: Bart Van Assche Cc: Bart Van Assche Cc: Christoph Hellwig Cc: Roland Dreier Signed-off-by: Nicholas A. Bellinger --- drivers/target/target_core_transport.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index d75255804481..5dee44639f8f 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -908,7 +908,7 @@ void transport_remove_task_from_execute_queue( } /* - * Handle QUEUE_FULL / -EAGAIN status + * Handle QUEUE_FULL / -EAGAIN and -ENOMEM status */ static void target_qf_do_work(struct work_struct *work) @@ -1645,9 +1645,7 @@ int transport_handle_cdb_direct( * and call transport_generic_request_failure() if necessary.. */ ret = transport_generic_new_cmd(cmd); - if (ret == -EAGAIN) - return 0; - else if (ret < 0) { + if (ret < 0) { cmd->transport_error_status = ret; transport_generic_request_failure(cmd, 0, (cmd->data_direction != DMA_TO_DEVICE)); @@ -1886,7 +1884,7 @@ static void transport_generic_request_failure( ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS); ret = cmd->se_tfo->queue_status(cmd); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; goto check_stop; case PYX_TRANSPORT_USE_SENSE_REASON: @@ -1913,7 +1911,7 @@ static void transport_generic_request_failure( else { ret = transport_send_check_condition_and_sense(cmd, cmd->scsi_sense_reason, 0); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; } @@ -3308,7 +3306,7 @@ static void target_complete_ok_work(struct work_struct *work) if (cmd->scsi_status) { ret = transport_send_check_condition_and_sense( cmd, reason, 1); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; transport_lun_remove_cmd(cmd); @@ -3333,7 +3331,7 @@ static void target_complete_ok_work(struct work_struct *work) spin_unlock(&cmd->se_lun->lun_sep_lock); ret = cmd->se_tfo->queue_data_in(cmd); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; break; case DMA_TO_DEVICE: @@ -3354,14 +3352,14 @@ static void target_complete_ok_work(struct work_struct *work) } spin_unlock(&cmd->se_lun->lun_sep_lock); ret = cmd->se_tfo->queue_data_in(cmd); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; break; } /* Fall through for DMA_TO_DEVICE */ case DMA_NONE: ret = cmd->se_tfo->queue_status(cmd); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; break; default: @@ -3890,7 +3888,10 @@ EXPORT_SYMBOL(transport_generic_process_write); static void transport_write_pending_qf(struct se_cmd *cmd) { - if (cmd->se_tfo->write_pending(cmd) == -EAGAIN) { + int ret; + + ret = cmd->se_tfo->write_pending(cmd); + if (ret == -EAGAIN || ret == -ENOMEM) { pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd); transport_handle_queue_full(cmd, cmd->se_dev); @@ -3920,7 +3921,7 @@ static int transport_generic_write_pending(struct se_cmd *cmd) * frontend know that WRITE buffers are ready. */ ret = cmd->se_tfo->write_pending(cmd); - if (ret == -EAGAIN) + if (ret == -EAGAIN || ret == -ENOMEM) goto queue_full; else if (ret < 0) return ret; @@ -3931,7 +3932,7 @@ queue_full: pr_debug("Handling write_pending QUEUE__FULL: se_cmd: %p\n", cmd); cmd->t_state = TRANSPORT_COMPLETE_QF_WP; transport_handle_queue_full(cmd, cmd->se_dev); - return ret; + return 0; } /** @@ -4583,9 +4584,7 @@ get_cmd: break; } ret = transport_generic_new_cmd(cmd); - if (ret == -EAGAIN) - break; - else if (ret < 0) { + if (ret < 0) { cmd->transport_error_status = ret; transport_generic_request_failure(cmd, 0, (cmd->data_direction != -- cgit v1.2.3 From 80ccbc8e00f7001d79dd503c2781487906b98611 Mon Sep 17 00:00:00 2001 From: Joern Engel Date: Tue, 25 Oct 2011 22:08:43 -0700 Subject: target: Fix incorrect se_cmd assignment in core_tmr_drain_tmr_list This patch fixes a bug in core_tmr_drain_tmr_list() where drain_tmr_list was using the wrong se_tmr_req for cmd assignment due to a typo during the LUN_RESET re-org. This was resulting in general protection faults while using the leftover bogus *tmr_p pointer from list_for_each_entry_safe(). Signed-off-by: Joern Engel Cc: Joern Engel Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_tmr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 570b144a1edb..87d8e958b4ce 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -154,7 +154,7 @@ static void core_tmr_drain_tmr_list( while (!list_empty(&drain_tmr_list)) { tmr = list_entry(drain_tmr_list.next, struct se_tmr_req, tmr_list); list_del(&tmr->tmr_list); - cmd = tmr_p->task_cmd; + cmd = tmr->task_cmd; pr_debug("LUN_RESET: %s releasing TMR %p Function: 0x%02x," " Response: 0x%02x, t_state: %d\n", -- cgit v1.2.3 From 6eb40b2af4908e9aee71e43e7a384243128c56dd Mon Sep 17 00:00:00 2001 From: Joern Engel Date: Wed, 26 Oct 2011 13:37:56 -0700 Subject: target: Fix wrong se_tmr being added to drain_tmr_list This patch fixes another bug from LUN_RESET re-org fallout in core_tmr_drain_tmr_list() that was adding the wrong se_tmr_req into the local drain_tmr_list to be walked + released. Signed-off-by: Joern Engel Cc: Joern Engel Reviewed-by: Roland Dreier Cc: Roland Dreier Cc: stable@kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_tmr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 87d8e958b4ce..391d6d8ac962 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -147,7 +147,7 @@ static void core_tmr_drain_tmr_list( } spin_unlock(&cmd->t_state_lock); - list_move_tail(&tmr->tmr_list, &drain_tmr_list); + list_move_tail(&tmr_p->tmr_list, &drain_tmr_list); } spin_unlock_irqrestore(&dev->se_tmr_lock, flags); -- cgit v1.2.3 From abc1fd4f92d86168790a9eaf9834713a41da788e Mon Sep 17 00:00:00 2001 From: Joern Engel Date: Wed, 26 Oct 2011 14:22:19 -0700 Subject: target: Minor cleanups to core_tmr_drain_tmr_list This patch adds a handful minor cleanups to core_tmr_drain_tmr_list() that remove an unnecessary NULL check, use list_for_each_entry_safe() instead of list_entry(), and makes the drain_tmr_list walk use *tmr_p instead of directly referencing the passed *tmr function parameter. Signed-off-by: Joern Engel Cc: Joern Engel Reviewed-by: Roland Dreier Cc: Roland Dreier Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_tmr.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c index 391d6d8ac962..2b0c528c1dd9 100644 --- a/drivers/target/target_core_tmr.c +++ b/drivers/target/target_core_tmr.c @@ -118,7 +118,7 @@ static void core_tmr_drain_tmr_list( /* * Allow the received TMR to return with FUNCTION_COMPLETE. */ - if (tmr && (tmr_p == tmr)) + if (tmr_p == tmr) continue; cmd = tmr_p->task_cmd; @@ -151,15 +151,14 @@ static void core_tmr_drain_tmr_list( } spin_unlock_irqrestore(&dev->se_tmr_lock, flags); - while (!list_empty(&drain_tmr_list)) { - tmr = list_entry(drain_tmr_list.next, struct se_tmr_req, tmr_list); - list_del(&tmr->tmr_list); - cmd = tmr->task_cmd; + list_for_each_entry_safe(tmr_p, tmr_pp, &drain_tmr_list, tmr_list) { + list_del(&tmr_p->tmr_list); + cmd = tmr_p->task_cmd; pr_debug("LUN_RESET: %s releasing TMR %p Function: 0x%02x," " Response: 0x%02x, t_state: %d\n", - (preempt_and_abort_list) ? "Preempt" : "", tmr, - tmr->function, tmr->response, cmd->t_state); + (preempt_and_abort_list) ? "Preempt" : "", tmr_p, + tmr_p->function, tmr_p->response, cmd->t_state); transport_cmd_finish_abort(cmd, 1); } -- cgit v1.2.3 From f9d979ce10c98dfd6d8d2a26217c3c4885ef97f6 Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:36:05 +0530 Subject: [SCSI] mpt2sas: MPI next revision header update 1)Added ProxyVF_ID field to Configuration Request message. 2)Added IO Unit Page 8, IO Unit Page 9,and IO Unit Page 10. 3)Added SASNotifyPrimitiveMasks field to IOC Page 7. 4)Added SAS NOTIFY Primitive event. 5)Added Temperature Threshold Event. 6)Added Host Message Event. 7)Added Send Host Message request and reply. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpi/mpi2.h | 11 ++- drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h | 153 +++++++++++++++++++++++++++++++---- drivers/scsi/mpt2sas/mpi/mpi2_ioc.h | 113 +++++++++++++++++++++++++- 3 files changed, 256 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpi/mpi2.h b/drivers/scsi/mpt2sas/mpi/mpi2.h index 3105d5e8d908..8dc1b32918dd 100644 --- a/drivers/scsi/mpt2sas/mpi/mpi2.h +++ b/drivers/scsi/mpt2sas/mpi/mpi2.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2010 LSI Corporation. + * Copyright (c) 2000-2011 LSI Corporation. * * * Name: mpi2.h @@ -8,7 +8,7 @@ * scatter/gather formats. * Creation Date: June 21, 2006 * - * mpi2.h Version: 02.00.18 + * mpi2.h Version: 02.00.20 * * Version History * --------------- @@ -66,6 +66,9 @@ * 08-11-10 02.00.17 Bumped MPI2_HEADER_VERSION_UNIT. * 11-10-10 02.00.18 Bumped MPI2_HEADER_VERSION_UNIT. * Added MPI2_IEEE_SGE_FLAGS_SYSTEMPLBCPI_ADDR define. + * 02-23-11 02.00.19 Bumped MPI2_HEADER_VERSION_UNIT. + * Added MPI2_FUNCTION_SEND_HOST_MESSAGE. + * 03-09-11 02.00.20 Bumped MPI2_HEADER_VERSION_UNIT. * -------------------------------------------------------------------------- */ @@ -91,7 +94,7 @@ #define MPI2_VERSION_02_00 (0x0200) /* versioning for this MPI header set */ -#define MPI2_HEADER_VERSION_UNIT (0x12) +#define MPI2_HEADER_VERSION_UNIT (0x14) #define MPI2_HEADER_VERSION_DEV (0x00) #define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00) #define MPI2_HEADER_VERSION_UNIT_SHIFT (8) @@ -515,6 +518,8 @@ typedef union _MPI2_REPLY_DESCRIPTORS_UNION #define MPI2_FUNCTION_HOST_BASED_DISCOVERY_ACTION (0x2F) /* Power Management Control */ #define MPI2_FUNCTION_PWR_MGMT_CONTROL (0x30) +/* Send Host Message */ +#define MPI2_FUNCTION_SEND_HOST_MESSAGE (0x31) /* beginning of product-specific range */ #define MPI2_FUNCTION_MIN_PRODUCT_SPECIFIC (0xF0) /* end of product-specific range */ diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h index 61475a6480e3..cfd95b4e3004 100644 --- a/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h +++ b/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h @@ -1,12 +1,12 @@ /* - * Copyright (c) 2000-2010 LSI Corporation. + * Copyright (c) 2000-2011 LSI Corporation. * * * Name: mpi2_cnfg.h * Title: MPI Configuration messages and pages * Creation Date: November 10, 2006 * - * mpi2_cnfg.h Version: 02.00.17 + * mpi2_cnfg.h Version: 02.00.19 * * Version History * --------------- @@ -134,6 +134,12 @@ * to MPI2_CONFIG_PAGE_IO_UNIT_7. * Added MPI2_CONFIG_EXTPAGETYPE_EXT_MANUFACTURING define * and MPI2_CONFIG_PAGE_EXT_MAN_PS structure. + * 02-23-11 02.00.18 Added ProxyVF_ID field to MPI2_CONFIG_REQUEST. + * Added IO Unit Page 8, IO Unit Page 9, + * and IO Unit Page 10. + * Added SASNotifyPrimitiveMasks field to + * MPI2_CONFIG_PAGE_IOC_7. + * 03-09-11 02.00.19 Fixed IO Unit Page 10 (to match the spec). * -------------------------------------------------------------------------- */ @@ -329,7 +335,9 @@ typedef struct _MPI2_CONFIG_REQUEST U8 VP_ID; /* 0x08 */ U8 VF_ID; /* 0x09 */ U16 Reserved1; /* 0x0A */ - U32 Reserved2; /* 0x0C */ + U8 Reserved2; /* 0x0C */ + U8 ProxyVF_ID; /* 0x0D */ + U16 Reserved4; /* 0x0E */ U32 Reserved3; /* 0x10 */ MPI2_CONFIG_PAGE_HEADER Header; /* 0x14 */ U32 PageAddress; /* 0x18 */ @@ -915,6 +923,120 @@ typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_7 { #define MPI2_IOUNITPAGE7_BOARD_TEMP_FAHRENHEIT (0x01) #define MPI2_IOUNITPAGE7_BOARD_TEMP_CELSIUS (0x02) +/* IO Unit Page 8 */ + +#define MPI2_IOUNIT8_NUM_THRESHOLDS (4) + +typedef struct _MPI2_IOUNIT8_SENSOR { + U16 Flags; /* 0x00 */ + U16 Reserved1; /* 0x02 */ + U16 + Threshold[MPI2_IOUNIT8_NUM_THRESHOLDS]; /* 0x04 */ + U32 Reserved2; /* 0x0C */ + U32 Reserved3; /* 0x10 */ + U32 Reserved4; /* 0x14 */ +} MPI2_IOUNIT8_SENSOR, MPI2_POINTER PTR_MPI2_IOUNIT8_SENSOR, +Mpi2IOUnit8Sensor_t, MPI2_POINTER pMpi2IOUnit8Sensor_t; + +/* defines for IO Unit Page 8 Sensor Flags field */ +#define MPI2_IOUNIT8_SENSOR_FLAGS_T3_ENABLE (0x0008) +#define MPI2_IOUNIT8_SENSOR_FLAGS_T2_ENABLE (0x0004) +#define MPI2_IOUNIT8_SENSOR_FLAGS_T1_ENABLE (0x0002) +#define MPI2_IOUNIT8_SENSOR_FLAGS_T0_ENABLE (0x0001) + +/* + * Host code (drivers, BIOS, utilities, etc.) should leave this define set to + * one and check the value returned for NumSensors at runtime. + */ +#ifndef MPI2_IOUNITPAGE8_SENSOR_ENTRIES +#define MPI2_IOUNITPAGE8_SENSOR_ENTRIES (1) +#endif + +typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_8 { + MPI2_CONFIG_PAGE_HEADER Header; /* 0x00 */ + U32 Reserved1; /* 0x04 */ + U32 Reserved2; /* 0x08 */ + U8 NumSensors; /* 0x0C */ + U8 PollingInterval; /* 0x0D */ + U16 Reserved3; /* 0x0E */ + MPI2_IOUNIT8_SENSOR + Sensor[MPI2_IOUNITPAGE8_SENSOR_ENTRIES];/* 0x10 */ +} MPI2_CONFIG_PAGE_IO_UNIT_8, MPI2_POINTER PTR_MPI2_CONFIG_PAGE_IO_UNIT_8, +Mpi2IOUnitPage8_t, MPI2_POINTER pMpi2IOUnitPage8_t; + +#define MPI2_IOUNITPAGE8_PAGEVERSION (0x00) + + +/* IO Unit Page 9 */ + +typedef struct _MPI2_IOUNIT9_SENSOR { + U16 CurrentTemperature; /* 0x00 */ + U16 Reserved1; /* 0x02 */ + U8 Flags; /* 0x04 */ + U8 Reserved2; /* 0x05 */ + U16 Reserved3; /* 0x06 */ + U32 Reserved4; /* 0x08 */ + U32 Reserved5; /* 0x0C */ +} MPI2_IOUNIT9_SENSOR, MPI2_POINTER PTR_MPI2_IOUNIT9_SENSOR, +Mpi2IOUnit9Sensor_t, MPI2_POINTER pMpi2IOUnit9Sensor_t; + +/* defines for IO Unit Page 9 Sensor Flags field */ +#define MPI2_IOUNIT9_SENSOR_FLAGS_TEMP_VALID (0x01) + +/* + * Host code (drivers, BIOS, utilities, etc.) should leave this define set to + * one and check the value returned for NumSensors at runtime. + */ +#ifndef MPI2_IOUNITPAGE9_SENSOR_ENTRIES +#define MPI2_IOUNITPAGE9_SENSOR_ENTRIES (1) +#endif + +typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_9 { + MPI2_CONFIG_PAGE_HEADER Header; /* 0x00 */ + U32 Reserved1; /* 0x04 */ + U32 Reserved2; /* 0x08 */ + U8 NumSensors; /* 0x0C */ + U8 Reserved4; /* 0x0D */ + U16 Reserved3; /* 0x0E */ + MPI2_IOUNIT9_SENSOR + Sensor[MPI2_IOUNITPAGE9_SENSOR_ENTRIES];/* 0x10 */ +} MPI2_CONFIG_PAGE_IO_UNIT_9, MPI2_POINTER PTR_MPI2_CONFIG_PAGE_IO_UNIT_9, +Mpi2IOUnitPage9_t, MPI2_POINTER pMpi2IOUnitPage9_t; + +#define MPI2_IOUNITPAGE9_PAGEVERSION (0x00) + + +/* IO Unit Page 10 */ + +typedef struct _MPI2_IOUNIT10_FUNCTION { + U8 CreditPercent; /* 0x00 */ + U8 Reserved1; /* 0x01 */ + U16 Reserved2; /* 0x02 */ +} MPI2_IOUNIT10_FUNCTION, MPI2_POINTER PTR_MPI2_IOUNIT10_FUNCTION, +Mpi2IOUnit10Function_t, MPI2_POINTER pMpi2IOUnit10Function_t; + +/* + * Host code (drivers, BIOS, utilities, etc.) should leave this define set to + * one and check the value returned for NumFunctions at runtime. + */ +#ifndef MPI2_IOUNITPAGE10_FUNCTION_ENTRIES +#define MPI2_IOUNITPAGE10_FUNCTION_ENTRIES (1) +#endif + +typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_10 { + MPI2_CONFIG_PAGE_HEADER Header; /* 0x00 */ + U8 NumFunctions; /* 0x04 */ + U8 Reserved1; /* 0x05 */ + U16 Reserved2; /* 0x06 */ + U32 Reserved3; /* 0x08 */ + U32 Reserved4; /* 0x0C */ + MPI2_IOUNIT10_FUNCTION + Function[MPI2_IOUNITPAGE10_FUNCTION_ENTRIES];/* 0x10 */ +} MPI2_CONFIG_PAGE_IO_UNIT_10, MPI2_POINTER PTR_MPI2_CONFIG_PAGE_IO_UNIT_10, +Mpi2IOUnitPage10_t, MPI2_POINTER pMpi2IOUnitPage10_t; + +#define MPI2_IOUNITPAGE10_PAGEVERSION (0x01) + /**************************************************************************** @@ -1022,12 +1144,12 @@ typedef struct _MPI2_CONFIG_PAGE_IOC_7 U32 Reserved1; /* 0x04 */ U32 EventMasks[MPI2_IOCPAGE7_EVENTMASK_WORDS];/* 0x08 */ U16 SASBroadcastPrimitiveMasks; /* 0x18 */ - U16 Reserved2; /* 0x1A */ + U16 SASNotifyPrimitiveMasks; /* 0x1A */ U32 Reserved3; /* 0x1C */ } MPI2_CONFIG_PAGE_IOC_7, MPI2_POINTER PTR_MPI2_CONFIG_PAGE_IOC_7, Mpi2IOCPage7_t, MPI2_POINTER pMpi2IOCPage7_t; -#define MPI2_IOCPAGE7_PAGEVERSION (0x01) +#define MPI2_IOCPAGE7_PAGEVERSION (0x02) /* IOC Page 8 */ @@ -2070,16 +2192,16 @@ typedef struct _MPI2_CONFIG_PAGE_SASIOUNIT_8 { #define MPI2_SASIOUNITPAGE8_PAGEVERSION (0x00) /* defines for PowerManagementCapabilities field */ -#define MPI2_SASIOUNIT8_PM_HOST_PORT_WIDTH_MOD (0x000001000) -#define MPI2_SASIOUNIT8_PM_HOST_SAS_SLUMBER_MODE (0x000000800) -#define MPI2_SASIOUNIT8_PM_HOST_SAS_PARTIAL_MODE (0x000000400) -#define MPI2_SASIOUNIT8_PM_HOST_SATA_SLUMBER_MODE (0x000000200) -#define MPI2_SASIOUNIT8_PM_HOST_SATA_PARTIAL_MODE (0x000000100) -#define MPI2_SASIOUNIT8_PM_IOUNIT_PORT_WIDTH_MOD (0x000000010) -#define MPI2_SASIOUNIT8_PM_IOUNIT_SAS_SLUMBER_MODE (0x000000008) -#define MPI2_SASIOUNIT8_PM_IOUNIT_SAS_PARTIAL_MODE (0x000000004) -#define MPI2_SASIOUNIT8_PM_IOUNIT_SATA_SLUMBER_MODE (0x000000002) -#define MPI2_SASIOUNIT8_PM_IOUNIT_SATA_PARTIAL_MODE (0x000000001) +#define MPI2_SASIOUNIT8_PM_HOST_PORT_WIDTH_MOD (0x00001000) +#define MPI2_SASIOUNIT8_PM_HOST_SAS_SLUMBER_MODE (0x00000800) +#define MPI2_SASIOUNIT8_PM_HOST_SAS_PARTIAL_MODE (0x00000400) +#define MPI2_SASIOUNIT8_PM_HOST_SATA_SLUMBER_MODE (0x00000200) +#define MPI2_SASIOUNIT8_PM_HOST_SATA_PARTIAL_MODE (0x00000100) +#define MPI2_SASIOUNIT8_PM_IOUNIT_PORT_WIDTH_MOD (0x00000010) +#define MPI2_SASIOUNIT8_PM_IOUNIT_SAS_SLUMBER_MODE (0x00000008) +#define MPI2_SASIOUNIT8_PM_IOUNIT_SAS_PARTIAL_MODE (0x00000004) +#define MPI2_SASIOUNIT8_PM_IOUNIT_SATA_SLUMBER_MODE (0x00000002) +#define MPI2_SASIOUNIT8_PM_IOUNIT_SATA_PARTIAL_MODE (0x00000001) @@ -2266,6 +2388,7 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_DEV_0 /* see mpi2_sas.h for values for SAS Device Page 0 DeviceInfo values */ /* values for SAS Device Page 0 Flags field */ +#define MPI2_SAS_DEVICE0_FLAGS_UNAUTHORIZED_DEVICE (0x8000) #define MPI2_SAS_DEVICE0_FLAGS_SLUMBER_PM_CAPABLE (0x1000) #define MPI2_SAS_DEVICE0_FLAGS_PARTIAL_PM_CAPABLE (0x0800) #define MPI2_SAS_DEVICE0_FLAGS_SATA_ASYNCHRONOUS_NOTIFY (0x0400) diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h index 1f0c190d336e..93d9b6956d05 100644 --- a/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h +++ b/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h @@ -1,12 +1,12 @@ /* - * Copyright (c) 2000-2010 LSI Corporation. + * Copyright (c) 2000-2011 LSI Corporation. * * * Name: mpi2_ioc.h * Title: MPI IOC, Port, Event, FW Download, and FW Upload messages * Creation Date: October 11, 2006 * - * mpi2_ioc.h Version: 02.00.16 + * mpi2_ioc.h Version: 02.00.17 * * Version History * --------------- @@ -104,6 +104,12 @@ * 05-12-10 02.00.15 Marked Task Set Full Event as obsolete. * Added MPI2_EVENT_SAS_TOPO_LR_UNSUPPORTED_PHY define. * 11-10-10 02.00.16 Added MPI2_FW_DOWNLOAD_ITYPE_MIN_PRODUCT_SPECIFIC. + * 02-23-11 02.00.17 Added SAS NOTIFY Primitive event, and added + * SASNotifyPrimitiveMasks field to + * MPI2_EVENT_NOTIFICATION_REQUEST. + * Added Temperature Threshold Event. + * Added Host Message Event. + * Added Send Host Message request and reply. * -------------------------------------------------------------------------- */ @@ -421,7 +427,7 @@ typedef struct _MPI2_EVENT_NOTIFICATION_REQUEST U32 Reserved6; /* 0x10 */ U32 EventMasks[MPI2_EVENT_NOTIFY_EVENTMASK_WORDS];/* 0x14 */ U16 SASBroadcastPrimitiveMasks; /* 0x24 */ - U16 Reserved7; /* 0x26 */ + U16 SASNotifyPrimitiveMasks; /* 0x26 */ U32 Reserved8; /* 0x28 */ } MPI2_EVENT_NOTIFICATION_REQUEST, MPI2_POINTER PTR_MPI2_EVENT_NOTIFICATION_REQUEST, @@ -476,6 +482,9 @@ typedef struct _MPI2_EVENT_NOTIFICATION_REPLY #define MPI2_EVENT_GPIO_INTERRUPT (0x0023) #define MPI2_EVENT_HOST_BASED_DISCOVERY_PHY (0x0024) #define MPI2_EVENT_SAS_QUIESCE (0x0025) +#define MPI2_EVENT_SAS_NOTIFY_PRIMITIVE (0x0026) +#define MPI2_EVENT_TEMP_THRESHOLD (0x0027) +#define MPI2_EVENT_HOST_MESSAGE (0x0028) /* Log Entry Added Event data */ @@ -507,6 +516,39 @@ typedef struct _MPI2_EVENT_DATA_GPIO_INTERRUPT { MPI2_POINTER PTR_MPI2_EVENT_DATA_GPIO_INTERRUPT, Mpi2EventDataGpioInterrupt_t, MPI2_POINTER pMpi2EventDataGpioInterrupt_t; +/* Temperature Threshold Event data */ + +typedef struct _MPI2_EVENT_DATA_TEMPERATURE { + U16 Status; /* 0x00 */ + U8 SensorNum; /* 0x02 */ + U8 Reserved1; /* 0x03 */ + U16 CurrentTemperature; /* 0x04 */ + U16 Reserved2; /* 0x06 */ + U32 Reserved3; /* 0x08 */ + U32 Reserved4; /* 0x0C */ +} MPI2_EVENT_DATA_TEMPERATURE, +MPI2_POINTER PTR_MPI2_EVENT_DATA_TEMPERATURE, +Mpi2EventDataTemperature_t, MPI2_POINTER pMpi2EventDataTemperature_t; + +/* Temperature Threshold Event data Status bits */ +#define MPI2_EVENT_TEMPERATURE3_EXCEEDED (0x0008) +#define MPI2_EVENT_TEMPERATURE2_EXCEEDED (0x0004) +#define MPI2_EVENT_TEMPERATURE1_EXCEEDED (0x0002) +#define MPI2_EVENT_TEMPERATURE0_EXCEEDED (0x0001) + + +/* Host Message Event data */ + +typedef struct _MPI2_EVENT_DATA_HOST_MESSAGE { + U8 SourceVF_ID; /* 0x00 */ + U8 Reserved1; /* 0x01 */ + U16 Reserved2; /* 0x02 */ + U32 Reserved3; /* 0x04 */ + U32 HostData[1]; /* 0x08 */ +} MPI2_EVENT_DATA_HOST_MESSAGE, MPI2_POINTER PTR_MPI2_EVENT_DATA_HOST_MESSAGE, +Mpi2EventDataHostMessage_t, MPI2_POINTER pMpi2EventDataHostMessage_t; + + /* Hard Reset Received Event data */ typedef struct _MPI2_EVENT_DATA_HARD_RESET_RECEIVED @@ -749,6 +791,24 @@ typedef struct _MPI2_EVENT_DATA_SAS_BROADCAST_PRIMITIVE #define MPI2_EVENT_PRIMITIVE_CHANGE0_RESERVED (0x07) #define MPI2_EVENT_PRIMITIVE_CHANGE1_RESERVED (0x08) +/* SAS Notify Primitive Event data */ + +typedef struct _MPI2_EVENT_DATA_SAS_NOTIFY_PRIMITIVE { + U8 PhyNum; /* 0x00 */ + U8 Port; /* 0x01 */ + U8 Reserved1; /* 0x02 */ + U8 Primitive; /* 0x03 */ +} MPI2_EVENT_DATA_SAS_NOTIFY_PRIMITIVE, +MPI2_POINTER PTR_MPI2_EVENT_DATA_SAS_NOTIFY_PRIMITIVE, +Mpi2EventDataSasNotifyPrimitive_t, +MPI2_POINTER pMpi2EventDataSasNotifyPrimitive_t; + +/* defines for the Primitive field */ +#define MPI2_EVENT_NOTIFY_ENABLE_SPINUP (0x01) +#define MPI2_EVENT_NOTIFY_POWER_LOSS_EXPECTED (0x02) +#define MPI2_EVENT_NOTIFY_RESERVED1 (0x03) +#define MPI2_EVENT_NOTIFY_RESERVED2 (0x04) + /* SAS Initiator Device Status Change Event data */ @@ -1000,6 +1060,53 @@ typedef struct _MPI2_EVENT_ACK_REPLY Mpi2EventAckReply_t, MPI2_POINTER pMpi2EventAckReply_t; +/**************************************************************************** +* SendHostMessage message +****************************************************************************/ + +/* SendHostMessage Request message */ +typedef struct _MPI2_SEND_HOST_MESSAGE_REQUEST { + U16 HostDataLength; /* 0x00 */ + U8 ChainOffset; /* 0x02 */ + U8 Function; /* 0x03 */ + U16 Reserved1; /* 0x04 */ + U8 Reserved2; /* 0x06 */ + U8 MsgFlags; /* 0x07 */ + U8 VP_ID; /* 0x08 */ + U8 VF_ID; /* 0x09 */ + U16 Reserved3; /* 0x0A */ + U8 Reserved4; /* 0x0C */ + U8 DestVF_ID; /* 0x0D */ + U16 Reserved5; /* 0x0E */ + U32 Reserved6; /* 0x10 */ + U32 Reserved7; /* 0x14 */ + U32 Reserved8; /* 0x18 */ + U32 Reserved9; /* 0x1C */ + U32 Reserved10; /* 0x20 */ + U32 HostData[1]; /* 0x24 */ +} MPI2_SEND_HOST_MESSAGE_REQUEST, +MPI2_POINTER PTR_MPI2_SEND_HOST_MESSAGE_REQUEST, +Mpi2SendHostMessageRequest_t, MPI2_POINTER pMpi2SendHostMessageRequest_t; + + +/* SendHostMessage Reply message */ +typedef struct _MPI2_SEND_HOST_MESSAGE_REPLY { + U16 HostDataLength; /* 0x00 */ + U8 MsgLength; /* 0x02 */ + U8 Function; /* 0x03 */ + U16 Reserved1; /* 0x04 */ + U8 Reserved2; /* 0x06 */ + U8 MsgFlags; /* 0x07 */ + U8 VP_ID; /* 0x08 */ + U8 VF_ID; /* 0x09 */ + U16 Reserved3; /* 0x0A */ + U16 Reserved4; /* 0x0C */ + U16 IOCStatus; /* 0x0E */ + U32 IOCLogInfo; /* 0x10 */ +} MPI2_SEND_HOST_MESSAGE_REPLY, MPI2_POINTER PTR_MPI2_SEND_HOST_MESSAGE_REPLY, +Mpi2SendHostMessageReply_t, MPI2_POINTER pMpi2SendHostMessageReply_t; + + /**************************************************************************** * FWDownload message ****************************************************************************/ -- cgit v1.2.3 From 921cd8024b908f8f49f772c8d3a02381b4db2ed2 Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:36:26 +0530 Subject: [SCSI] mpt2sas: New feature - Fast Load Support New feature Fast Load Support. (1)Asynchronous SCSI scanning: This will allow the drivers to scan for devices in parallel while other device drivers are loading at the same time. This will improve the amount of time it takes for the OS to load. (2) Reporting Devices while port enable is active: This feature will allow devices to be reported to OS immediately while port enable is active. The previous implementation waits for port enable to complete, and then report devices. This feature is only enabled on IT firmware configurations when there are no boot device configured in BIOS Configuration Utility, else the driver will wait till port enable completes reporting devices. For IR firmware, this feature is turned off. This feature is to address large SAS topologies (>100 drives) when the boot OS is using onboard SATA device, in other words, the boot devices is not connected to our controller. (3) Scanning for devices after diagnostic reset completes: A new routine _scsih_scan_start is added. This will scan the expander pages, IR pages, and sas device pages, then reporting new devices to SCSI Mid layer. It seems the driver is not supporting adding devices while diagnostic reset is active. Apparently this is due to the sanity checks on ioc->shost_recovery flag throughout the context of kernel work thread FIFO, and the mpt2sas_fw_work. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_base.c | 247 ++++++++++++++++---- drivers/scsi/mpt2sas/mpt2sas_base.h | 26 ++- drivers/scsi/mpt2sas/mpt2sas_ctl.c | 9 +- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 423 ++++++++++++++++++++++++++++------- 4 files changed, 580 insertions(+), 125 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index 81209ca87274..beda04a8404b 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -81,6 +81,15 @@ static int missing_delay[2] = {-1, -1}; module_param_array(missing_delay, int, NULL, 0); MODULE_PARM_DESC(missing_delay, " device missing delay , io missing delay"); +static int mpt2sas_fwfault_debug; +MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault " + "and halt firmware - (default=0)"); + +static int disable_discovery = -1; +module_param(disable_discovery, int, 0); +MODULE_PARM_DESC(disable_discovery, " disable discovery "); + + /* diag_buffer_enable is bitwise * bit 0 set = TRACE * bit 1 set = SNAPSHOT @@ -93,14 +102,6 @@ module_param(diag_buffer_enable, int, 0); MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers " "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)"); -static int mpt2sas_fwfault_debug; -MODULE_PARM_DESC(mpt2sas_fwfault_debug, " enable detection of firmware fault " - "and halt firmware - (default=0)"); - -static int disable_discovery = -1; -module_param(disable_discovery, int, 0); -MODULE_PARM_DESC(disable_discovery, " disable discovery "); - /** * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug. * @@ -691,6 +692,7 @@ mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, memcpy(ioc->base_cmds.reply, mpi_reply, mpi_reply->MsgLength*4); } ioc->base_cmds.status &= ~MPT2_CMD_PENDING; + complete(&ioc->base_cmds.done); return 1; } @@ -3469,6 +3471,58 @@ _base_send_ioc_init(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) return 0; } +/** + * mpt2sas_port_enable_done - command completion routine for port enable + * @ioc: per adapter object + * @smid: system request message index + * @msix_index: MSIX table index supplied by the OS + * @reply: reply message frame(lower 32bit addr) + * + * Return 1 meaning mf should be freed from _base_interrupt + * 0 means the mf is freed from this function. + */ +u8 +mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, + u32 reply) +{ + MPI2DefaultReply_t *mpi_reply; + u16 ioc_status; + + mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); + if (mpi_reply && mpi_reply->Function == MPI2_FUNCTION_EVENT_ACK) + return 1; + + if (ioc->port_enable_cmds.status == MPT2_CMD_NOT_USED) + return 1; + + ioc->port_enable_cmds.status |= MPT2_CMD_COMPLETE; + if (mpi_reply) { + ioc->port_enable_cmds.status |= MPT2_CMD_REPLY_VALID; + memcpy(ioc->port_enable_cmds.reply, mpi_reply, + mpi_reply->MsgLength*4); + } + ioc->port_enable_cmds.status &= ~MPT2_CMD_PENDING; + + ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; + + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) + ioc->port_enable_failed = 1; + + if (ioc->is_driver_loading) { + if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { + mpt2sas_port_enable_complete(ioc); + return 1; + } else { + ioc->start_scan_failed = ioc_status; + ioc->start_scan = 0; + return 1; + } + } + complete(&ioc->port_enable_cmds.done); + return 1; +} + + /** * _base_send_port_enable - send port_enable(discovery stuff) to firmware * @ioc: per adapter object @@ -3480,66 +3534,150 @@ static int _base_send_port_enable(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) { Mpi2PortEnableRequest_t *mpi_request; - u32 ioc_state; + Mpi2PortEnableReply_t *mpi_reply; unsigned long timeleft; int r = 0; u16 smid; + u16 ioc_status; printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); - if (ioc->base_cmds.status & MPT2_CMD_PENDING) { + if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", ioc->name, __func__); return -EAGAIN; } - smid = mpt2sas_base_get_smid(ioc, ioc->base_cb_idx); + smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); if (!smid) { printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", ioc->name, __func__); return -EAGAIN; } - ioc->base_cmds.status = MPT2_CMD_PENDING; + ioc->port_enable_cmds.status = MPT2_CMD_PENDING; mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); - ioc->base_cmds.smid = smid; + ioc->port_enable_cmds.smid = smid; memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; - mpi_request->VF_ID = 0; /* TODO */ - mpi_request->VP_ID = 0; + init_completion(&ioc->port_enable_cmds.done); mpt2sas_base_put_smid_default(ioc, smid); - init_completion(&ioc->base_cmds.done); - timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, + timeleft = wait_for_completion_timeout(&ioc->port_enable_cmds.done, 300*HZ); - if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) { + if (!(ioc->port_enable_cmds.status & MPT2_CMD_COMPLETE)) { printk(MPT2SAS_ERR_FMT "%s: timeout\n", ioc->name, __func__); _debug_dump_mf(mpi_request, sizeof(Mpi2PortEnableRequest_t)/4); - if (ioc->base_cmds.status & MPT2_CMD_RESET) + if (ioc->port_enable_cmds.status & MPT2_CMD_RESET) r = -EFAULT; else r = -ETIME; goto out; - } else - dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: complete\n", - ioc->name, __func__)); + } + mpi_reply = ioc->port_enable_cmds.reply; - ioc_state = _base_wait_on_iocstate(ioc, MPI2_IOC_STATE_OPERATIONAL, - 60, sleep_flag); - if (ioc_state) { - printk(MPT2SAS_ERR_FMT "%s: failed going to operational state " - " (ioc_state=0x%x)\n", ioc->name, __func__, ioc_state); + ioc_status = le16_to_cpu(mpi_reply->IOCStatus) & MPI2_IOCSTATUS_MASK; + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { + printk(MPT2SAS_ERR_FMT "%s: failed with (ioc_status=0x%08x)\n", + ioc->name, __func__, ioc_status); r = -EFAULT; + goto out; } out: - ioc->base_cmds.status = MPT2_CMD_NOT_USED; - printk(MPT2SAS_INFO_FMT "port enable: %s\n", - ioc->name, ((r == 0) ? "SUCCESS" : "FAILED")); + ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; + printk(MPT2SAS_INFO_FMT "port enable: %s\n", ioc->name, ((r == 0) ? + "SUCCESS" : "FAILED")); return r; } +/** + * mpt2sas_port_enable - initiate firmware discovery (don't wait for reply) + * @ioc: per adapter object + * + * Returns 0 for success, non-zero for failure. + */ +int +mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc) +{ + Mpi2PortEnableRequest_t *mpi_request; + u16 smid; + + printk(MPT2SAS_INFO_FMT "sending port enable !!\n", ioc->name); + + if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { + printk(MPT2SAS_ERR_FMT "%s: internal command already in use\n", + ioc->name, __func__); + return -EAGAIN; + } + + smid = mpt2sas_base_get_smid(ioc, ioc->port_enable_cb_idx); + if (!smid) { + printk(MPT2SAS_ERR_FMT "%s: failed obtaining a smid\n", + ioc->name, __func__); + return -EAGAIN; + } + + ioc->port_enable_cmds.status = MPT2_CMD_PENDING; + mpi_request = mpt2sas_base_get_msg_frame(ioc, smid); + ioc->port_enable_cmds.smid = smid; + memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t)); + mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE; + + mpt2sas_base_put_smid_default(ioc, smid); + return 0; +} + +/** + * _base_determine_wait_on_discovery - desposition + * @ioc: per adapter object + * + * Decide whether to wait on discovery to complete. Used to either + * locate boot device, or report volumes ahead of physical devices. + * + * Returns 1 for wait, 0 for don't wait + */ +static int +_base_determine_wait_on_discovery(struct MPT2SAS_ADAPTER *ioc) +{ + /* We wait for discovery to complete if IR firmware is loaded. + * The sas topology events arrive before PD events, so we need time to + * turn on the bit in ioc->pd_handles to indicate PD + * Also, it maybe required to report Volumes ahead of physical + * devices when MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING is set. + */ + if (ioc->ir_firmware) + return 1; + + /* if no Bios, then we don't need to wait */ + if (!ioc->bios_pg3.BiosVersion) + return 0; + + /* Bios is present, then we drop down here. + * + * If there any entries in the Bios Page 2, then we wait + * for discovery to complete. + */ + + /* Current Boot Device */ + if ((ioc->bios_pg2.CurrentBootDeviceForm & + MPI2_BIOSPAGE2_FORM_MASK) == + MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && + /* Request Boot Device */ + (ioc->bios_pg2.ReqBootDeviceForm & + MPI2_BIOSPAGE2_FORM_MASK) == + MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED && + /* Alternate Request Boot Device */ + (ioc->bios_pg2.ReqAltBootDeviceForm & + MPI2_BIOSPAGE2_FORM_MASK) == + MPI2_BIOSPAGE2_FORM_NO_DEVICE_SPECIFIED) + return 0; + + return 1; +} + + /** * _base_unmask_events - turn on notification for this event * @ioc: per adapter object @@ -3962,6 +4100,7 @@ _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) skip_init_reply_post_host_index: _base_unmask_interrupts(ioc); + r = _base_event_notification(ioc, sleep_flag); if (r) return r; @@ -3969,7 +4108,18 @@ _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) if (sleep_flag == CAN_SLEEP) _base_static_config_pages(ioc); - if (ioc->wait_for_port_enable_to_complete && ioc->is_warpdrive) { + + if (ioc->is_driver_loading) { + + + + ioc->wait_for_discovery_to_complete = + _base_determine_wait_on_discovery(ioc); + return r; /* scan_start and scan_finished support */ + } + + + if (ioc->wait_for_discovery_to_complete && ioc->is_warpdrive) { if (ioc->manu_pg10.OEMIdentifier == 0x80) { hide_flag = (u8) (ioc->manu_pg10.OEMSpecificFlags0 & MFG_PAGE10_HIDE_SSDS_MASK); @@ -3978,13 +4128,6 @@ _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) } } - if (ioc->wait_for_port_enable_to_complete) { - if (diag_buffer_enable != 0) - mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable); - if (disable_discovery > 0) - return r; - } - r = _base_send_port_enable(ioc, sleep_flag); if (r) return r; @@ -4121,6 +4264,10 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) ioc->base_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); ioc->base_cmds.status = MPT2_CMD_NOT_USED; + /* port_enable command bits */ + ioc->port_enable_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); + ioc->port_enable_cmds.status = MPT2_CMD_NOT_USED; + /* transport internal command bits */ ioc->transport_cmds.reply = kzalloc(ioc->reply_sz, GFP_KERNEL); ioc->transport_cmds.status = MPT2_CMD_NOT_USED; @@ -4162,8 +4309,6 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) goto out_free_resources; } - init_completion(&ioc->shost_recovery_done); - for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++) ioc->event_masks[i] = -1; @@ -4186,7 +4331,6 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) _base_update_missing_delay(ioc, missing_delay[0], missing_delay[1]); - mpt2sas_base_start_watchdog(ioc); return 0; out_free_resources: @@ -4204,6 +4348,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc) kfree(ioc->scsih_cmds.reply); kfree(ioc->config_cmds.reply); kfree(ioc->base_cmds.reply); + kfree(ioc->port_enable_cmds.reply); kfree(ioc->ctl_cmds.reply); kfree(ioc->ctl_cmds.sense); kfree(ioc->pfacts); @@ -4243,6 +4388,7 @@ mpt2sas_base_detach(struct MPT2SAS_ADAPTER *ioc) kfree(ioc->ctl_cmds.reply); kfree(ioc->ctl_cmds.sense); kfree(ioc->base_cmds.reply); + kfree(ioc->port_enable_cmds.reply); kfree(ioc->tm_cmds.reply); kfree(ioc->transport_cmds.reply); kfree(ioc->scsih_cmds.reply); @@ -4284,6 +4430,20 @@ _base_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) mpt2sas_base_free_smid(ioc, ioc->base_cmds.smid); complete(&ioc->base_cmds.done); } + if (ioc->port_enable_cmds.status & MPT2_CMD_PENDING) { + ioc->port_enable_failed = 1; + ioc->port_enable_cmds.status |= MPT2_CMD_RESET; + mpt2sas_base_free_smid(ioc, ioc->port_enable_cmds.smid); + if (ioc->is_driver_loading) { + ioc->start_scan_failed = + MPI2_IOCSTATUS_INTERNAL_ERROR; + ioc->start_scan = 0; + ioc->port_enable_cmds.status = + MPT2_CMD_NOT_USED; + } else + complete(&ioc->port_enable_cmds.done); + + } if (ioc->config_cmds.status & MPT2_CMD_PENDING) { ioc->config_cmds.status |= MPT2_CMD_RESET; mpt2sas_base_free_smid(ioc, ioc->config_cmds.smid); @@ -4349,7 +4509,6 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, { int r; unsigned long flags; - u8 pe_complete = ioc->wait_for_port_enable_to_complete; dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, __func__)); @@ -4396,7 +4555,8 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, /* If this hard reset is called while port enable is active, then * there is no reason to call make_ioc_operational */ - if (pe_complete) { + if (ioc->is_driver_loading && ioc->port_enable_failed) { + ioc->remove_host = 1; r = -EFAULT; goto out; } @@ -4410,7 +4570,6 @@ mpt2sas_base_hard_reset_handler(struct MPT2SAS_ADAPTER *ioc, int sleep_flag, spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); ioc->ioc_reset_in_progress_status = r; ioc->shost_recovery = 0; - complete(&ioc->shost_recovery_done); spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); mutex_unlock(&ioc->reset_in_progress_mutex); diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index 59354dba68c0..ce2bd9bf40f7 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -655,7 +655,12 @@ enum mutex_type { * @ignore_loginfos: ignore loginfos during task management * @remove_host: flag for when driver unloads, to avoid sending dev resets * @pci_error_recovery: flag to prevent ioc access until slot reset completes - * @wait_for_port_enable_to_complete: + * @wait_for_discovery_to_complete: flag set at driver load time when + * waiting on reporting devices + * @is_driver_loading: flag set at driver load time + * @port_enable_failed: flag set when port enable has failed + * @start_scan: flag set from scan_start callback, cleared from _mpt2sas_fw_work + * @start_scan_failed: means port enable failed, return's the ioc_status * @msix_enable: flag indicating msix is enabled * @msix_vector_count: number msix vectors * @cpu_msix_table: table for mapping cpus to msix index @@ -790,15 +795,20 @@ struct MPT2SAS_ADAPTER { u8 shost_recovery; struct mutex reset_in_progress_mutex; - struct completion shost_recovery_done; spinlock_t ioc_reset_in_progress_lock; u8 ioc_link_reset_in_progress; - int ioc_reset_in_progress_status; + u8 ioc_reset_in_progress_status; u8 ignore_loginfos; u8 remove_host; u8 pci_error_recovery; - u8 wait_for_port_enable_to_complete; + u8 wait_for_discovery_to_complete; + struct completion port_enable_done; + u8 is_driver_loading; + u8 port_enable_failed; + + u8 start_scan; + u16 start_scan_failed; u8 msix_enable; u16 msix_vector_count; @@ -814,11 +824,13 @@ struct MPT2SAS_ADAPTER { u8 scsih_cb_idx; u8 ctl_cb_idx; u8 base_cb_idx; + u8 port_enable_cb_idx; u8 config_cb_idx; u8 tm_tr_cb_idx; u8 tm_tr_volume_cb_idx; u8 tm_sas_control_cb_idx; struct _internal_cmd base_cmds; + struct _internal_cmd port_enable_cmds; struct _internal_cmd transport_cmds; struct _internal_cmd scsih_cmds; struct _internal_cmd tm_cmds; @@ -1001,6 +1013,8 @@ void mpt2sas_base_release_callback_handler(u8 cb_idx); u8 mpt2sas_base_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply); +u8 mpt2sas_port_enable_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, + u8 msix_index, u32 reply); void *mpt2sas_base_get_reply_virt_addr(struct MPT2SAS_ADAPTER *ioc, u32 phys_addr); u32 mpt2sas_base_get_iocstate(struct MPT2SAS_ADAPTER *ioc, int cooked); @@ -1015,6 +1029,8 @@ void mpt2sas_base_validate_event_type(struct MPT2SAS_ADAPTER *ioc, u32 *event_ty void mpt2sas_halt_firmware(struct MPT2SAS_ADAPTER *ioc); +int mpt2sas_port_enable(struct MPT2SAS_ADAPTER *ioc); + /* scsih shared API */ u8 mpt2sas_scsih_event_callback(struct MPT2SAS_ADAPTER *ioc, u8 msix_index, u32 reply); @@ -1032,6 +1048,8 @@ struct _sas_node *mpt2sas_scsih_expander_find_by_sas_address(struct MPT2SAS_ADAP struct _sas_device *mpt2sas_scsih_sas_device_find_by_sas_address( struct MPT2SAS_ADAPTER *ioc, u64 sas_address); +void mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc); + void mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase); /* config shared API */ diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c index 9adb0133d6fb..aabcb911706e 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c +++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c @@ -1207,6 +1207,9 @@ _ctl_do_reset(void __user *arg) if (_ctl_verify_adapter(karg.hdr.ioc_number, &ioc) == -1 || !ioc) return -ENODEV; + if (ioc->shost_recovery || ioc->pci_error_recovery || + ioc->is_driver_loading) + return -EAGAIN; dctlprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: enter\n", ioc->name, __func__)); @@ -2178,7 +2181,8 @@ _ctl_ioctl_main(struct file *file, unsigned int cmd, void __user *arg) !ioc) return -ENODEV; - if (ioc->shost_recovery || ioc->pci_error_recovery) + if (ioc->shost_recovery || ioc->pci_error_recovery || + ioc->is_driver_loading) return -EAGAIN; if (_IOC_SIZE(cmd) == sizeof(struct mpt2_ioctl_command)) { @@ -2297,7 +2301,8 @@ _ctl_compat_mpt_command(struct file *file, unsigned cmd, unsigned long arg) if (_ctl_verify_adapter(karg32.hdr.ioc_number, &ioc) == -1 || !ioc) return -ENODEV; - if (ioc->shost_recovery || ioc->pci_error_recovery) + if (ioc->shost_recovery || ioc->pci_error_recovery || + ioc->is_driver_loading) return -EAGAIN; memset(&karg, 0, sizeof(struct mpt2_ioctl_command)); diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 1da1aa1a11e2..7a3865d9c959 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -71,6 +71,9 @@ static void _firmware_event_work(struct work_struct *work); static u8 _scsih_check_for_pending_tm(struct MPT2SAS_ADAPTER *ioc, u16 smid); +static void _scsih_scan_start(struct Scsi_Host *shost); +static int _scsih_scan_finished(struct Scsi_Host *shost, unsigned long time); + /* global parameters */ LIST_HEAD(mpt2sas_ioc_list); @@ -79,6 +82,7 @@ static u8 scsi_io_cb_idx = -1; static u8 tm_cb_idx = -1; static u8 ctl_cb_idx = -1; static u8 base_cb_idx = -1; +static u8 port_enable_cb_idx = -1; static u8 transport_cb_idx = -1; static u8 scsih_cb_idx = -1; static u8 config_cb_idx = -1; @@ -103,6 +107,18 @@ static int max_lun = MPT2SAS_MAX_LUN; module_param(max_lun, int, 0); MODULE_PARM_DESC(max_lun, " max lun, default=16895 "); +/* diag_buffer_enable is bitwise + * bit 0 set = TRACE + * bit 1 set = SNAPSHOT + * bit 2 set = EXTENDED + * + * Either bit can be set, or both + */ +static int diag_buffer_enable = -1; +module_param(diag_buffer_enable, int, 0); +MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers " + "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)"); + /** * struct sense_info - common structure for obtaining sense keys * @skey: sense key @@ -117,8 +133,8 @@ struct sense_info { #define MPT2SAS_TURN_ON_FAULT_LED (0xFFFC) -#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF) - +#define MPT2SAS_PORT_ENABLE_COMPLETE (0xFFFD) +#define MPT2SAS_REMOVE_UNRESPONDING_DEVICES (0xFFFF) /** * struct fw_event_work - firmware event struct * @list: link list framework @@ -424,7 +440,11 @@ _scsih_determine_boot_device(struct MPT2SAS_ADAPTER *ioc, u16 slot; /* only process this function when driver loads */ - if (!ioc->wait_for_port_enable_to_complete) + if (!ioc->is_driver_loading) + return; + + /* no Bios, return immediately */ + if (!ioc->bios_pg3.BiosVersion) return; if (!is_raid) { @@ -2714,22 +2734,38 @@ _scsih_fw_event_free(struct MPT2SAS_ADAPTER *ioc, struct fw_event_work /** - * _scsih_queue_rescan - queue a topology rescan from user context + * _scsih_error_recovery_delete_devices - remove devices not responding * @ioc: per adapter object * * Return nothing. */ static void -_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc) +_scsih_error_recovery_delete_devices(struct MPT2SAS_ADAPTER *ioc) { struct fw_event_work *fw_event; - if (ioc->wait_for_port_enable_to_complete) + if (ioc->is_driver_loading) return; + fw_event->event = MPT2SAS_REMOVE_UNRESPONDING_DEVICES; + fw_event->ioc = ioc; + _scsih_fw_event_add(ioc, fw_event); +} + +/** + * mpt2sas_port_enable_complete - port enable completed (fake event) + * @ioc: per adapter object + * + * Return nothing. + */ +void +mpt2sas_port_enable_complete(struct MPT2SAS_ADAPTER *ioc) +{ + struct fw_event_work *fw_event; + fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); if (!fw_event) return; - fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET; + fw_event->event = MPT2SAS_PORT_ENABLE_COMPLETE; fw_event->ioc = ioc; _scsih_fw_event_add(ioc, fw_event); } @@ -5099,7 +5135,7 @@ _scsih_add_device(struct MPT2SAS_ADAPTER *ioc, u16 handle, u8 phy_num, u8 is_pd) /* get device name */ sas_device->device_name = le64_to_cpu(sas_device_pg0.DeviceName); - if (ioc->wait_for_port_enable_to_complete) + if (ioc->wait_for_discovery_to_complete) _scsih_sas_device_init_add(ioc, sas_device); else _scsih_sas_device_add(ioc, sas_device); @@ -5622,7 +5658,7 @@ broadcast_aen_retry: termination_count = 0; query_count = 0; for (smid = 1; smid <= ioc->scsiio_depth; smid++) { - if (ioc->ioc_reset_in_progress_status) + if (ioc->shost_recovery) goto out; scmd = _scsih_scsi_lookup_get(ioc, smid); if (!scmd) @@ -5644,7 +5680,7 @@ broadcast_aen_retry: lun = sas_device_priv_data->lun; query_count++; - if (ioc->ioc_reset_in_progress_status) + if (ioc->shost_recovery) goto out; spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); @@ -5686,7 +5722,7 @@ broadcast_aen_retry: goto broadcast_aen_retry; } - if (ioc->ioc_reset_in_progress_status) + if (ioc->shost_recovery) goto out_no_lock; r = mpt2sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id, @@ -5725,7 +5761,7 @@ broadcast_aen_retry: ioc->name, __func__, query_count, termination_count)); ioc->broadcast_aen_busy = 0; - if (!ioc->ioc_reset_in_progress_status) + if (!ioc->shost_recovery) _scsih_ublock_io_all_device(ioc); mutex_unlock(&ioc->tm_cmds.mutex); } @@ -5845,7 +5881,7 @@ _scsih_sas_volume_add(struct MPT2SAS_ADAPTER *ioc, raid_device->handle = handle; raid_device->wwid = wwid; _scsih_raid_device_add(ioc, raid_device); - if (!ioc->wait_for_port_enable_to_complete) { + if (!ioc->wait_for_discovery_to_complete) { rc = scsi_add_device(ioc->shost, RAID_CHANNEL, raid_device->id, 0); if (rc) @@ -6127,6 +6163,10 @@ _scsih_sas_ir_config_change_event(struct MPT2SAS_ADAPTER *ioc, _scsih_sas_ir_config_change_event_debug(ioc, event_data); #endif + + if (ioc->shost_recovery) + return; + foreign_config = (le32_to_cpu(event_data->Flags) & MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0; @@ -6185,6 +6225,9 @@ _scsih_sas_ir_volume_event(struct MPT2SAS_ADAPTER *ioc, int rc; Mpi2EventDataIrVolume_t *event_data = fw_event->event_data; + if (ioc->shost_recovery) + return; + if (event_data->ReasonCode != MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED) return; @@ -6267,6 +6310,9 @@ _scsih_sas_ir_physical_disk_event(struct MPT2SAS_ADAPTER *ioc, Mpi2EventDataIrPhysicalDisk_t *event_data = fw_event->event_data; u64 sas_address; + if (ioc->shost_recovery) + return; + if (event_data->ReasonCode != MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED) return; @@ -6510,10 +6556,10 @@ _scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc) u32 device_info; u16 slot; - printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__); + printk(MPT2SAS_INFO_FMT "search for end-devices: start\n", ioc->name); if (list_empty(&ioc->sas_device_list)) - return; + goto out; handle = 0xFFFF; while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, @@ -6532,6 +6578,9 @@ _scsih_search_responding_sas_devices(struct MPT2SAS_ADAPTER *ioc) _scsih_mark_responding_sas_device(ioc, sas_address, slot, handle); } +out: + printk(MPT2SAS_INFO_FMT "search for end-devices: complete\n", + ioc->name); } /** @@ -6607,10 +6656,14 @@ _scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc) u16 handle; u8 phys_disk_num; - printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__); + if (!ioc->ir_firmware) + return; + + printk(MPT2SAS_INFO_FMT "search for raid volumes: start\n", + ioc->name); if (list_empty(&ioc->raid_device_list)) - return; + goto out; handle = 0xFFFF; while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply, @@ -6649,6 +6702,9 @@ _scsih_search_responding_raid_devices(struct MPT2SAS_ADAPTER *ioc) set_bit(handle, ioc->pd_handles); } } +out: + printk(MPT2SAS_INFO_FMT "search for responding raid volumes: " + "complete\n", ioc->name); } /** @@ -6708,10 +6764,10 @@ _scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc) u64 sas_address; u16 handle; - printk(MPT2SAS_INFO_FMT "%s\n", ioc->name, __func__); + printk(MPT2SAS_INFO_FMT "search for expanders: start\n", ioc->name); if (list_empty(&ioc->sas_expander_list)) - return; + goto out; handle = 0xFFFF; while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0, @@ -6730,6 +6786,8 @@ _scsih_search_responding_expanders(struct MPT2SAS_ADAPTER *ioc) _scsih_mark_responding_expander(ioc, sas_address, handle); } + out: + printk(MPT2SAS_INFO_FMT "search for expanders: complete\n", ioc->name); } /** @@ -6745,6 +6803,8 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc) struct _sas_node *sas_expander; struct _raid_device *raid_device, *raid_device_next; + printk(MPT2SAS_INFO_FMT "removing unresponding devices: start\n", + ioc->name); list_for_each_entry_safe(sas_device, sas_device_next, &ioc->sas_device_list, list) { @@ -6764,6 +6824,9 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc) _scsih_remove_device(ioc, sas_device); } + if (!ioc->ir_firmware) + goto retry_expander_search; + list_for_each_entry_safe(raid_device, raid_device_next, &ioc->raid_device_list, list) { if (raid_device->responding) { @@ -6790,52 +6853,170 @@ _scsih_remove_unresponding_sas_devices(struct MPT2SAS_ADAPTER *ioc) mpt2sas_expander_remove(ioc, sas_expander->sas_address); goto retry_expander_search; } + printk(MPT2SAS_INFO_FMT "removing unresponding devices: complete\n", + ioc->name); + /* unblock devices */ + _scsih_ublock_io_all_device(ioc); +} + +static void +_scsih_refresh_expander_links(struct MPT2SAS_ADAPTER *ioc, + struct _sas_node *sas_expander, u16 handle) +{ + Mpi2ExpanderPage1_t expander_pg1; + Mpi2ConfigReply_t mpi_reply; + int i; + + for (i = 0 ; i < sas_expander->num_phys ; i++) { + if ((mpt2sas_config_get_expander_pg1(ioc, &mpi_reply, + &expander_pg1, i, handle))) { + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", + ioc->name, __FILE__, __LINE__, __func__); + return; + } + + mpt2sas_transport_update_links(ioc, sas_expander->sas_address, + le16_to_cpu(expander_pg1.AttachedDevHandle), i, + expander_pg1.NegotiatedLinkRate >> 4); + } } /** - * _scsih_hide_unhide_sas_devices - add/remove device to/from OS + * _scsih_scan_for_devices_after_reset - scan for devices after host reset * @ioc: per adapter object * * Return nothing. */ static void -_scsih_hide_unhide_sas_devices(struct MPT2SAS_ADAPTER *ioc) +_scsih_scan_for_devices_after_reset(struct MPT2SAS_ADAPTER *ioc) { - struct _sas_device *sas_device, *sas_device_next; + Mpi2ExpanderPage0_t expander_pg0; + Mpi2SasDevicePage0_t sas_device_pg0; + Mpi2RaidVolPage1_t volume_pg1; + Mpi2RaidVolPage0_t volume_pg0; + Mpi2RaidPhysDiskPage0_t pd_pg0; + Mpi2EventIrConfigElement_t element; + Mpi2ConfigReply_t mpi_reply; + u8 phys_disk_num; + u16 ioc_status; + u16 handle, parent_handle; + u64 sas_address; + struct _sas_device *sas_device; + struct _sas_node *expander_device; + static struct _raid_device *raid_device; - if (!ioc->is_warpdrive || ioc->mfg_pg10_hide_flag != - MFG_PAGE10_HIDE_IF_VOL_PRESENT) - return; + printk(MPT2SAS_INFO_FMT "scan devices: start\n", ioc->name); - if (ioc->hide_drives) { - if (_scsih_get_num_volumes(ioc)) - return; - ioc->hide_drives = 0; - list_for_each_entry_safe(sas_device, sas_device_next, - &ioc->sas_device_list, list) { - if (!mpt2sas_transport_port_add(ioc, sas_device->handle, - sas_device->sas_address_parent)) { - _scsih_sas_device_remove(ioc, sas_device); - } else if (!sas_device->starget) { - mpt2sas_transport_port_remove(ioc, - sas_device->sas_address, - sas_device->sas_address_parent); - _scsih_sas_device_remove(ioc, sas_device); - } + _scsih_sas_host_refresh(ioc); + + /* expanders */ + handle = 0xFFFF; + while (!(mpt2sas_config_get_expander_pg0(ioc, &mpi_reply, &expander_pg0, + MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL, handle))) { + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) + break; + handle = le16_to_cpu(expander_pg0.DevHandle); + expander_device = mpt2sas_scsih_expander_find_by_sas_address( + ioc, le64_to_cpu(expander_pg0.SASAddress)); + if (expander_device) + _scsih_refresh_expander_links(ioc, expander_device, + handle); + else + _scsih_expander_add(ioc, handle); + } + + if (!ioc->ir_firmware) + goto skip_to_sas; + + /* phys disk */ + phys_disk_num = 0xFF; + while (!(mpt2sas_config_get_phys_disk_pg0(ioc, &mpi_reply, + &pd_pg0, MPI2_PHYSDISK_PGAD_FORM_GET_NEXT_PHYSDISKNUM, + phys_disk_num))) { + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) + break; + phys_disk_num = pd_pg0.PhysDiskNum; + handle = le16_to_cpu(pd_pg0.DevHandle); + sas_device = _scsih_sas_device_find_by_handle(ioc, handle); + if (sas_device) + continue; + if (mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, + &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, + handle) != 0) + continue; + parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); + if (!_scsih_get_sas_address(ioc, parent_handle, + &sas_address)) { + mpt2sas_transport_update_links(ioc, sas_address, + handle, sas_device_pg0.PhyNum, + MPI2_SAS_NEG_LINK_RATE_1_5); + set_bit(handle, ioc->pd_handles); + _scsih_add_device(ioc, handle, 0, 1); } - } else { - if (!_scsih_get_num_volumes(ioc)) - return; - ioc->hide_drives = 1; - list_for_each_entry_safe(sas_device, sas_device_next, - &ioc->sas_device_list, list) { - mpt2sas_transport_port_remove(ioc, - sas_device->sas_address, - sas_device->sas_address_parent); + } + + /* volumes */ + handle = 0xFFFF; + while (!(mpt2sas_config_get_raid_volume_pg1(ioc, &mpi_reply, + &volume_pg1, MPI2_RAID_VOLUME_PGAD_FORM_GET_NEXT_HANDLE, handle))) { + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) + break; + handle = le16_to_cpu(volume_pg1.DevHandle); + raid_device = _scsih_raid_device_find_by_wwid(ioc, + le64_to_cpu(volume_pg1.WWID)); + if (raid_device) + continue; + if (mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, + &volume_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, handle, + sizeof(Mpi2RaidVolPage0_t))) + continue; + if (volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_OPTIMAL || + volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_ONLINE || + volume_pg0.VolumeState == MPI2_RAID_VOL_STATE_DEGRADED) { + memset(&element, 0, sizeof(Mpi2EventIrConfigElement_t)); + element.ReasonCode = MPI2_EVENT_IR_CHANGE_RC_ADDED; + element.VolDevHandle = volume_pg1.DevHandle; + _scsih_sas_volume_add(ioc, &element); + } + } + + skip_to_sas: + + /* sas devices */ + handle = 0xFFFF; + while (!(mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, + &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE, + handle))) { + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) + break; + handle = le16_to_cpu(sas_device_pg0.DevHandle); + if (!(_scsih_is_end_device( + le32_to_cpu(sas_device_pg0.DeviceInfo)))) + continue; + sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + le64_to_cpu(sas_device_pg0.SASAddress)); + if (sas_device) + continue; + parent_handle = le16_to_cpu(sas_device_pg0.ParentDevHandle); + if (!_scsih_get_sas_address(ioc, parent_handle, &sas_address)) { + mpt2sas_transport_update_links(ioc, sas_address, handle, + sas_device_pg0.PhyNum, MPI2_SAS_NEG_LINK_RATE_1_5); + _scsih_add_device(ioc, handle, 0, 0); } } + + printk(MPT2SAS_INFO_FMT "scan devices: complete\n", ioc->name); } + /** * mpt2sas_scsih_reset_handler - reset callback handler (for scsih) * @ioc: per adapter object @@ -6871,7 +7052,6 @@ mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) } _scsih_fw_event_cleanup_queue(ioc); _scsih_flush_running_cmds(ioc); - _scsih_queue_rescan(ioc); break; case MPT2_IOC_DONE_RESET: dtmprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: " @@ -6881,6 +7061,7 @@ mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) _scsih_search_responding_sas_devices(ioc); _scsih_search_responding_raid_devices(ioc); _scsih_search_responding_expanders(ioc); + _scsih_error_recovery_delete_devices(ioc); break; } } @@ -6898,7 +7079,6 @@ _firmware_event_work(struct work_struct *work) { struct fw_event_work *fw_event = container_of(work, struct fw_event_work, delayed_work.work); - unsigned long flags; struct MPT2SAS_ADAPTER *ioc = fw_event->ioc; /* the queue is being flushed so ignore this event */ @@ -6908,23 +7088,31 @@ _firmware_event_work(struct work_struct *work) return; } - if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) { - _scsih_fw_event_free(ioc, fw_event); - spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); - if (ioc->shost_recovery) { - init_completion(&ioc->shost_recovery_done); - spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, - flags); - wait_for_completion(&ioc->shost_recovery_done); - } else - spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, - flags); + switch (fw_event->event) { + case MPT2SAS_REMOVE_UNRESPONDING_DEVICES: + while (scsi_host_in_recovery(ioc->shost)) + ssleep(1); _scsih_remove_unresponding_sas_devices(ioc); - _scsih_hide_unhide_sas_devices(ioc); - return; - } + _scsih_scan_for_devices_after_reset(ioc); + break; + case MPT2SAS_PORT_ENABLE_COMPLETE: + if (!ioc->is_driver_loading && ioc->shost_recovery) { + _scsih_prep_device_scan(ioc); + _scsih_search_responding_sas_devices(ioc); + _scsih_search_responding_raid_devices(ioc); + _scsih_search_responding_expanders(ioc); + } - switch (fw_event->event) { + if (ioc->start_scan) + ioc->start_scan = 0; + else + complete(&ioc->port_enable_done); + + + + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "port enable: complete " + "from worker thread\n", ioc->name)); + break; case MPT2SAS_TURN_ON_FAULT_LED: _scsih_turn_on_fault_led(ioc, fw_event->device_handle); break; @@ -7121,6 +7309,8 @@ static struct scsi_host_template scsih_driver_template = { .slave_configure = _scsih_slave_configure, .target_destroy = _scsih_target_destroy, .slave_destroy = _scsih_slave_destroy, + .scan_finished = _scsih_scan_finished, + .scan_start = _scsih_scan_start, .change_queue_depth = _scsih_change_queue_depth, .change_queue_type = _scsih_change_queue_type, .eh_abort_handler = _scsih_abort, @@ -7381,7 +7571,12 @@ _scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc) unsigned long flags; int rc; + /* no Bios, return immediately */ + if (!ioc->bios_pg3.BiosVersion) + return; + device = NULL; + is_raid = 0; if (ioc->req_boot_device.device) { device = ioc->req_boot_device.device; is_raid = ioc->req_boot_device.is_raid; @@ -7490,9 +7685,7 @@ _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc) static void _scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc) { - u16 volume_mapping_flags = - le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) & - MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; + u16 volume_mapping_flags; if (!(ioc->facts.ProtocolFlags & MPI2_IOCFACTS_PROTOCOL_SCSI_INITIATOR)) return; /* return when IOC doesn't support initiator mode */ @@ -7500,18 +7693,93 @@ _scsih_probe_devices(struct MPT2SAS_ADAPTER *ioc) _scsih_probe_boot_devices(ioc); if (ioc->ir_firmware) { - if ((volume_mapping_flags & - MPI2_IOCPAGE8_IRFLAGS_HIGH_VOLUME_MAPPING)) { - _scsih_probe_sas(ioc); + volume_mapping_flags = + le16_to_cpu(ioc->ioc_pg8.IRVolumeMappingFlags) & + MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE; + if (volume_mapping_flags == + MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) { _scsih_probe_raid(ioc); + _scsih_probe_sas(ioc); } else { - _scsih_probe_raid(ioc); _scsih_probe_sas(ioc); + _scsih_probe_raid(ioc); } } else _scsih_probe_sas(ioc); } + +/** + * _scsih_scan_start - scsi lld callback for .scan_start + * @shost: SCSI host pointer + * + * The shost has the ability to discover targets on its own instead + * of scanning the entire bus. In our implemention, we will kick off + * firmware discovery. + */ +static void +_scsih_scan_start(struct Scsi_Host *shost) +{ + struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); + int rc; + + if (diag_buffer_enable != -1 && diag_buffer_enable != 0) + mpt2sas_enable_diag_buffer(ioc, diag_buffer_enable); + + ioc->start_scan = 1; + rc = mpt2sas_port_enable(ioc); + + if (rc != 0) + printk(MPT2SAS_INFO_FMT "port enable: FAILED\n", ioc->name); +} + +/** + * _scsih_scan_finished - scsi lld callback for .scan_finished + * @shost: SCSI host pointer + * @time: elapsed time of the scan in jiffies + * + * This function will be called periodically until it returns 1 with the + * scsi_host and the elapsed time of the scan in jiffies. In our implemention, + * we wait for firmware discovery to complete, then return 1. + */ +static int +_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time) +{ + struct MPT2SAS_ADAPTER *ioc = shost_priv(shost); + + if (time >= (300 * HZ)) { + ioc->base_cmds.status = MPT2_CMD_NOT_USED; + printk(MPT2SAS_INFO_FMT "port enable: FAILED with timeout " + "(timeout=300s)\n", ioc->name); + ioc->is_driver_loading = 0; + return 1; + } + + if (ioc->start_scan) + return 0; + + if (ioc->start_scan_failed) { + printk(MPT2SAS_INFO_FMT "port enable: FAILED with " + "(ioc_status=0x%08x)\n", ioc->name, ioc->start_scan_failed); + ioc->is_driver_loading = 0; + ioc->wait_for_discovery_to_complete = 0; + ioc->remove_host = 1; + return 1; + } + + printk(MPT2SAS_INFO_FMT "port enable: SUCCESS\n", ioc->name); + ioc->base_cmds.status = MPT2_CMD_NOT_USED; + + if (ioc->wait_for_discovery_to_complete) { + ioc->wait_for_discovery_to_complete = 0; + _scsih_probe_devices(ioc); + } + mpt2sas_base_start_watchdog(ioc); + ioc->is_driver_loading = 0; + return 1; +} + + /** * _scsih_probe - attach and add scsi host * @pdev: PCI device struct @@ -7548,6 +7816,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) ioc->tm_cb_idx = tm_cb_idx; ioc->ctl_cb_idx = ctl_cb_idx; ioc->base_cb_idx = base_cb_idx; + ioc->port_enable_cb_idx = port_enable_cb_idx; ioc->transport_cb_idx = transport_cb_idx; ioc->scsih_cb_idx = scsih_cb_idx; ioc->config_cb_idx = config_cb_idx; @@ -7620,14 +7889,14 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto out_thread_fail; } - ioc->wait_for_port_enable_to_complete = 1; + ioc->is_driver_loading = 1; if ((mpt2sas_base_attach(ioc))) { printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, __func__); goto out_attach_fail; } - ioc->wait_for_port_enable_to_complete = 0; + scsi_scan_host(shost); if (ioc->is_warpdrive) { if (ioc->mfg_pg10_hide_flag == MFG_PAGE10_EXPOSE_ALL_DISKS) ioc->hide_drives = 0; @@ -7650,6 +7919,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) out_thread_fail: list_del(&ioc->list); scsi_remove_host(shost); + scsi_host_put(shost); out_add_shost_fail: return -ENODEV; } @@ -7896,6 +8166,8 @@ _scsih_init(void) /* base internal commands callback handler */ base_cb_idx = mpt2sas_base_register_callback_handler(mpt2sas_base_done); + port_enable_cb_idx = mpt2sas_base_register_callback_handler( + mpt2sas_port_enable_done); /* transport internal commands callback handler */ transport_cb_idx = mpt2sas_base_register_callback_handler( @@ -7950,6 +8222,7 @@ _scsih_exit(void) mpt2sas_base_release_callback_handler(scsi_io_cb_idx); mpt2sas_base_release_callback_handler(tm_cb_idx); mpt2sas_base_release_callback_handler(base_cb_idx); + mpt2sas_base_release_callback_handler(port_enable_cb_idx); mpt2sas_base_release_callback_handler(transport_cb_idx); mpt2sas_base_release_callback_handler(scsih_cb_idx); mpt2sas_base_release_callback_handler(config_cb_idx); -- cgit v1.2.3 From 0167ac67ff6f35bf2364f7672c8012b0cd40277f Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Fri, 21 Oct 2011 10:06:33 +0530 Subject: [SCSI] mpt2sas: Fix for system hang when discovery in progress Fix for issue : While discovery is in progress, hot unplug and hot plug of enclosure connected to the controller card is causing system to hang. When a device is in the process of being detected at driver load time then if it is removed, the device that is no longer present will not be added to the list. So the code in _scsih_probe_sas() is rearranged as such so the devices that failed to be detected are not added to the list. Signed-off-by: Nagalakshmi Nandigama Cc: stable@kernel.org Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 7a3865d9c959..c13efc3268d8 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -7657,22 +7657,27 @@ _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc) /* SAS Device List */ list_for_each_entry_safe(sas_device, next, &ioc->sas_device_init_list, list) { - spin_lock_irqsave(&ioc->sas_device_lock, flags); - list_move_tail(&sas_device->list, &ioc->sas_device_list); - spin_unlock_irqrestore(&ioc->sas_device_lock, flags); if (ioc->hide_drives) continue; if (!mpt2sas_transport_port_add(ioc, sas_device->handle, sas_device->sas_address_parent)) { - _scsih_sas_device_remove(ioc, sas_device); + list_del(&sas_device->list); + kfree(sas_device); + continue; } else if (!sas_device->starget) { mpt2sas_transport_port_remove(ioc, sas_device->sas_address, sas_device->sas_address_parent); - _scsih_sas_device_remove(ioc, sas_device); + list_del(&sas_device->list); + kfree(sas_device); + continue; + } + spin_lock_irqsave(&ioc->sas_device_lock, flags); + list_move_tail(&sas_device->list, &ioc->sas_device_list); + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); } } -- cgit v1.2.3 From 24f09b598dc455be84991e69ab9e6a339fd66bcf Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:36:47 +0530 Subject: [SCSI] mpt2sas: Fix failure message displayed during diag reset The fix is to inhibit the warning message in _scsih_get_sas_address when the MPI2_IOCSTATUS_CONFIG_INVALID_PAGE ioc status is returned. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index c13efc3268d8..8a9c70f21ecd 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -388,31 +388,34 @@ _scsih_get_sas_address(struct MPT2SAS_ADAPTER *ioc, u16 handle, Mpi2SasDevicePage0_t sas_device_pg0; Mpi2ConfigReply_t mpi_reply; u32 ioc_status; + *sas_address = 0; if (handle <= ioc->sas_hba.num_phys) { *sas_address = ioc->sas_hba.sas_address; return 0; - } else - *sas_address = 0; + } if ((mpt2sas_config_get_sas_device_pg0(ioc, &mpi_reply, &sas_device_pg0, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); + printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", ioc->name, + __FILE__, __LINE__, __func__); return -ENXIO; } - ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & - MPI2_IOCSTATUS_MASK; - if (ioc_status != MPI2_IOCSTATUS_SUCCESS) { - printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x)" - "\nfailure at %s:%d/%s()!\n", ioc->name, handle, ioc_status, - __FILE__, __LINE__, __func__); - return -EIO; + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; + if (ioc_status == MPI2_IOCSTATUS_SUCCESS) { + *sas_address = le64_to_cpu(sas_device_pg0.SASAddress); + return 0; } - *sas_address = le64_to_cpu(sas_device_pg0.SASAddress); - return 0; + /* we hit this becuase the given parent handle doesn't exist */ + if (ioc_status == MPI2_IOCSTATUS_CONFIG_INVALID_PAGE) + return -ENXIO; + /* else error case */ + printk(MPT2SAS_ERR_FMT "handle(0x%04x), ioc_status(0x%04x), " + "failure at %s:%d/%s()!\n", ioc->name, handle, ioc_status, + __FILE__, __LINE__, __func__); + return -EIO; } /** -- cgit v1.2.3 From f881ceadd4d6afafb227bcf8165c1b63ba90065b Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:37:00 +0530 Subject: [SCSI] mpt2sas: Fix drives not getting properly deleted if sas cable is removed while host reset is active The fix is in the driver-firmware handshake device removal code. We need to read the controller ioc_state to see if controller is OPERATIONAL prior to sending target reset and OP_REMOVE. Previously it was checking the flag ioc->shost_recovery flag, which is always set when host reset is active, thus preventing drives from getting properly deleted. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 38 ++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 8a9c70f21ecd..cd89f42440fe 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3019,11 +3019,23 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) struct MPT2SAS_TARGET *sas_target_priv_data; unsigned long flags; struct _tr_list *delayed_tr; + u32 ioc_state; - if (ioc->shost_recovery || ioc->remove_host || - ioc->pci_error_recovery) { - dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in " - "progress!\n", __func__, ioc->name)); + if (ioc->remove_host) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been " + "removed: handle(0x%04x)\n", __func__, ioc->name, handle)); + return; + } else if (ioc->pci_error_recovery) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci " + "error recovery: handle(0x%04x)\n", __func__, ioc->name, + handle)); + return; + } + ioc_state = mpt2sas_base_get_iocstate(ioc, 1); + if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not " + "operational: handle(0x%04x)\n", __func__, ioc->name, + handle)); return; } @@ -3224,11 +3236,21 @@ _scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, mpt2sas_base_get_reply_virt_addr(ioc, reply); Mpi2SasIoUnitControlRequest_t *mpi_request; u16 smid_sas_ctrl; + u32 ioc_state; - if (ioc->shost_recovery || ioc->remove_host || - ioc->pci_error_recovery) { - dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in " - "progress!\n", __func__, ioc->name)); + if (ioc->remove_host) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been " + "removed\n", __func__, ioc->name)); + return 1; + } else if (ioc->pci_error_recovery) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci " + "error recovery\n", __func__, ioc->name)); + return 1; + } + ioc_state = mpt2sas_base_get_iocstate(ioc, 1); + if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not " + "operational\n", __func__, ioc->name)); return 1; } -- cgit v1.2.3 From f3db032f1af6dd3280037ea526fee7cddcc36c41 Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:37:14 +0530 Subject: [SCSI] mpt2sas: Fix for dead lock occurring between host_lock and sas_device_lock Fix for dead lock occurring between host_lock and sas_device_lock. The deadlock is between two spin locks, between the shost->host_lock and driver ioc->sas_device_lock. The fix is to rearrange the code in the FW/Driver device removal handshake so the ioc->sas_device_lock is not occurring when the shost->host_lock is taken. [jejb: zero initialise sas_address to fix spurious compiler warning] Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index cd89f42440fe..f9ce31950314 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3016,7 +3016,8 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) Mpi2SCSITaskManagementRequest_t *mpi_request; u16 smid; struct _sas_device *sas_device; - struct MPT2SAS_TARGET *sas_target_priv_data; + struct MPT2SAS_TARGET *sas_target_priv_data = NULL; + u64 sas_address = 0; unsigned long flags; struct _tr_list *delayed_tr; u32 ioc_state; @@ -3049,13 +3050,17 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) sas_device->starget->hostdata) { sas_target_priv_data = sas_device->starget->hostdata; sas_target_priv_data->deleted = 1; - dewtprintk(ioc, printk(MPT2SAS_INFO_FMT - "setting delete flag: handle(0x%04x), " - "sas_addr(0x%016llx)\n", ioc->name, handle, - (unsigned long long) sas_device->sas_address)); + sas_address = sas_device->sas_address; } spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + if (sas_target_priv_data) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "setting delete flag: " + "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle, + (unsigned long long)sas_address)); + _scsih_ublock_io_device(ioc, handle); + } + smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx); if (!smid) { delayed_tr = kzalloc(sizeof(*delayed_tr), GFP_ATOMIC); -- cgit v1.2.3 From 918134efe9893629407af04adf242ee3095bea4a Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:37:24 +0530 Subject: [SCSI] mpt2sas: Fix for deadlock between hot plug worker threads and host reset context This is due to driver reporting a device missing to the OS then the OS sending a SYNC_CACHE request to driver while the IO queues are locked due to host reset. To fix the issue, the driver will be waking up the port enable context immediately when the driver receives the reply message, instead of waiting on the hot plug worker threads. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 30 ++++++++++++++++++------------ 1 file changed, 18 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index f9ce31950314..1f289882a298 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3059,6 +3059,7 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) "handle(0x%04x), sas_addr(0x%016llx)\n", ioc->name, handle, (unsigned long long)sas_address)); _scsih_ublock_io_device(ioc, handle); + sas_target_priv_data->handle = MPT2SAS_INVALID_DEVICE_HANDLE; } smid = mpt2sas_base_get_smid_hpr(ioc, ioc->tm_tr_cb_idx); @@ -5201,6 +5202,9 @@ _scsih_remove_device(struct MPT2SAS_ADAPTER *ioc, if (sas_device_backup.starget && sas_device_backup.starget->hostdata) { sas_target_priv_data = sas_device_backup.starget->hostdata; sas_target_priv_data->deleted = 1; + _scsih_ublock_io_device(ioc, sas_device_backup.handle); + sas_target_priv_data->handle = + MPT2SAS_INVALID_DEVICE_HANDLE; } _scsih_ublock_io_device(ioc, sas_device_backup.handle); @@ -5354,7 +5358,7 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, _scsih_sas_topology_change_event_debug(ioc, event_data); #endif - if (ioc->shost_recovery || ioc->remove_host || ioc->pci_error_recovery) + if (ioc->remove_host || ioc->pci_error_recovery) return; if (!ioc->sas_hba.num_phys) @@ -5415,6 +5419,9 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, switch (reason_code) { case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED: + if (ioc->shost_recovery) + break; + if (link_rate == prev_link_rate) break; @@ -5428,6 +5435,9 @@ _scsih_sas_topology_change_event(struct MPT2SAS_ADAPTER *ioc, break; case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED: + if (ioc->shost_recovery) + break; + mpt2sas_transport_update_links(ioc, sas_address, handle, phy_number, link_rate); @@ -7091,7 +7101,13 @@ mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) _scsih_search_responding_sas_devices(ioc); _scsih_search_responding_raid_devices(ioc); _scsih_search_responding_expanders(ioc); + if (!ioc->is_driver_loading) { + _scsih_prep_device_scan(ioc); + _scsih_search_responding_sas_devices(ioc); + _scsih_search_responding_raid_devices(ioc); + _scsih_search_responding_expanders(ioc); _scsih_error_recovery_delete_devices(ioc); + } break; } } @@ -7126,17 +7142,7 @@ _firmware_event_work(struct work_struct *work) _scsih_scan_for_devices_after_reset(ioc); break; case MPT2SAS_PORT_ENABLE_COMPLETE: - if (!ioc->is_driver_loading && ioc->shost_recovery) { - _scsih_prep_device_scan(ioc); - _scsih_search_responding_sas_devices(ioc); - _scsih_search_responding_raid_devices(ioc); - _scsih_search_responding_expanders(ioc); - } - - if (ioc->start_scan) - ioc->start_scan = 0; - else - complete(&ioc->port_enable_done); + ioc->start_scan = 0; -- cgit v1.2.3 From 6faace2a0e418b45728bcea6d3626922cf16b14b Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:37:37 +0530 Subject: [SCSI] mpt2sas: Fix for issue Port Reset taking long time(around 5 mins) to complete while issued during creating a volume This is due to the slave_configuration routine is getting called when host reset is active, and config page reads are failing, and driver attempts to added device with stale config data. To fix the issue, added error checking in slave_configure to check for configuration pages failing, and return "1" so the device is not configured. The config pages are failing if raid volume is configured while issuing a host reset, thus driver is reading stale data and proceeding to attempt to add. The fix is to return error so the volume is not configured. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 62 ++++++++++++++++++++++++++---------- 1 file changed, 45 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 1f289882a298..a8cb57723ff4 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -1621,8 +1621,10 @@ _scsih_set_level(struct scsi_device *sdev, struct _raid_device *raid_device) * _scsih_get_volume_capabilities - volume capabilities * @ioc: per adapter object * @sas_device: the raid_device object + * + * Returns 0 for success, else 1 */ -static void +static int _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc, struct _raid_device *raid_device) { @@ -1635,9 +1637,10 @@ _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc, if ((mpt2sas_config_get_number_pds(ioc, raid_device->handle, &num_pds)) || !num_pds) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return; + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + return 1; } raid_device->num_pds = num_pds; @@ -1645,17 +1648,19 @@ _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc, sizeof(Mpi2RaidVol0PhysDisk_t)); vol_pg0 = kzalloc(sz, GFP_KERNEL); if (!vol_pg0) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return; + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + return 1; } if ((mpt2sas_config_get_raid_volume_pg0(ioc, &mpi_reply, vol_pg0, MPI2_RAID_VOLUME_PGAD_FORM_HANDLE, raid_device->handle, sz))) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); kfree(vol_pg0); - return; + return 1; } raid_device->volume_type = vol_pg0->VolumeType; @@ -1675,6 +1680,7 @@ _scsih_get_volume_capabilities(struct MPT2SAS_ADAPTER *ioc, } kfree(vol_pg0); + return 0; } /** * _scsih_disable_ddio - Disable direct I/O for all the volumes @@ -1945,13 +1951,20 @@ _scsih_slave_configure(struct scsi_device *sdev) sas_target_priv_data->handle); spin_unlock_irqrestore(&ioc->raid_device_lock, flags); if (!raid_device) { - printk(MPT2SAS_ERR_FMT "failure at %s:%d/%s()!\n", - ioc->name, __FILE__, __LINE__, __func__); - return 0; + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, + __LINE__, __func__)); + return 1; } _scsih_get_volume_capabilities(ioc, raid_device); + if (_scsih_get_volume_capabilities(ioc, raid_device)) { + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, + __LINE__, __func__)); + return 1; + } /* * WARPDRIVE: Initialize the required data for Direct IO */ @@ -2025,11 +2038,21 @@ _scsih_slave_configure(struct scsi_device *sdev) if (sas_device) { if (sas_target_priv_data->flags & MPT_TARGET_FLAGS_RAID_COMPONENT) { - mpt2sas_config_get_volume_handle(ioc, - sas_device->handle, &sas_device->volume_handle); - mpt2sas_config_get_volume_wwid(ioc, + if (mpt2sas_config_get_volume_handle(ioc, + sas_device->handle, &sas_device->volume_handle)) { + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, + __FILE__, __LINE__, __func__)); + return 1; + } + if (mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle, - &sas_device->volume_wwid); + &sas_device->volume_wwid)) { + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, + __FILE__, __LINE__, __func__)); + return 1; + } } if (sas_device->device_info & MPI2_SAS_DEVICE_INFO_SSP_TARGET) { qdepth = MPT2SAS_SAS_QUEUE_DEPTH; @@ -2058,6 +2081,11 @@ _scsih_slave_configure(struct scsi_device *sdev) if (!ssp_target) _scsih_display_sata_capabilities(ioc, sas_device, sdev); + } else { + dfailprintk(ioc, printk(MPT2SAS_WARN_FMT + "failure at %s:%d/%s()!\n", ioc->name, __FILE__, __LINE__, + __func__)); + return 1; } _scsih_change_queue_depth(sdev, qdepth, SCSI_QDEPTH_DEFAULT); -- cgit v1.2.3 From 35116db95c42937061bfca93998291f6562e9e92 Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Fri, 21 Oct 2011 10:08:07 +0530 Subject: [SCSI] mpt2sas: Fix for Panic when inactive volume is tried deleting The driver was setting the action to MPI2_CONFIG_ACTION_PAGE_READ_CURRENT, which only returns active volumes. In order to get info on inactive volumes, the driver needs to change the action to MPI2_RAID_PGAD_FORM_GET_NEXT_CONFIGNUM, and traverse each config till the iocstatus is MPI2_IOCSTATUS_CONFIG_INVALID_PAGE returned. Added a change in the driver to remove the instance of sas_device object when the driver returns "1" from the slave_configure callback. Also fixed code to report the hot spares to the operating system with a /dev/sg assigned. Signed-off-by: Nagalakshmi Nandigama Cc: stable@kernel.org Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_config.c | 67 +++++++++++++++++++++++------------ drivers/scsi/mpt2sas/mpt2sas_scsih.c | 46 +++++++++++++++++++----- 2 files changed, 82 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c index 2b1101076cfe..36ea0b2d8020 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_config.c +++ b/drivers/scsi/mpt2sas/mpt2sas_config.c @@ -1356,6 +1356,9 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle, Mpi2ConfigReply_t mpi_reply; int r, i, config_page_sz; u16 ioc_status; + int config_num; + u16 element_type; + u16 phys_disk_dev_handle; *volume_handle = 0; memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t)); @@ -1371,35 +1374,53 @@ mpt2sas_config_get_volume_handle(struct MPT2SAS_ADAPTER *ioc, u16 pd_handle, if (r) goto out; - mpi_request.PageAddress = - cpu_to_le32(MPI2_RAID_PGAD_FORM_ACTIVE_CONFIG); mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_READ_CURRENT; config_page_sz = (le16_to_cpu(mpi_reply.ExtPageLength) * 4); config_page = kmalloc(config_page_sz, GFP_KERNEL); - if (!config_page) - goto out; - r = _config_request(ioc, &mpi_request, &mpi_reply, - MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, - config_page_sz); - if (r) + if (!config_page) { + r = -1; goto out; - - r = -1; - ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & MPI2_IOCSTATUS_MASK; - if (ioc_status != MPI2_IOCSTATUS_SUCCESS) - goto out; - for (i = 0; i < config_page->NumElements; i++) { - if ((le16_to_cpu(config_page->ConfigElement[i].ElementFlags) & - MPI2_RAIDCONFIG0_EFLAGS_MASK_ELEMENT_TYPE) != - MPI2_RAIDCONFIG0_EFLAGS_VOL_PHYS_DISK_ELEMENT) - continue; - if (le16_to_cpu(config_page->ConfigElement[i]. - PhysDiskDevHandle) == pd_handle) { - *volume_handle = le16_to_cpu(config_page-> - ConfigElement[i].VolDevHandle); - r = 0; + } + config_num = 0xff; + while (1) { + mpi_request.PageAddress = cpu_to_le32(config_num + + MPI2_RAID_PGAD_FORM_GET_NEXT_CONFIGNUM); + r = _config_request(ioc, &mpi_request, &mpi_reply, + MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, + config_page_sz); + if (r) + goto out; + r = -1; + ioc_status = le16_to_cpu(mpi_reply.IOCStatus) & + MPI2_IOCSTATUS_MASK; + if (ioc_status != MPI2_IOCSTATUS_SUCCESS) goto out; + for (i = 0; i < config_page->NumElements; i++) { + element_type = le16_to_cpu(config_page-> + ConfigElement[i].ElementFlags) & + MPI2_RAIDCONFIG0_EFLAGS_MASK_ELEMENT_TYPE; + if (element_type == + MPI2_RAIDCONFIG0_EFLAGS_VOL_PHYS_DISK_ELEMENT || + element_type == + MPI2_RAIDCONFIG0_EFLAGS_OCE_ELEMENT) { + phys_disk_dev_handle = + le16_to_cpu(config_page->ConfigElement[i]. + PhysDiskDevHandle); + if (phys_disk_dev_handle == pd_handle) { + *volume_handle = + le16_to_cpu(config_page-> + ConfigElement[i].VolDevHandle); + r = 0; + goto out; + } + } else if (element_type == + MPI2_RAIDCONFIG0_EFLAGS_HOT_SPARE_ELEMENT) { + *volume_handle = 0; + r = 0; + goto out; + } } + config_num = config_page->ConfigNum; } out: kfree(config_page); diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index a8cb57723ff4..8889b1babcac 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -610,8 +610,15 @@ _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc, spin_unlock_irqrestore(&ioc->sas_device_lock, flags); if (!mpt2sas_transport_port_add(ioc, sas_device->handle, - sas_device->sas_address_parent)) + sas_device->sas_address_parent)) { _scsih_sas_device_remove(ioc, sas_device); + } else if (!sas_device->starget) { + if (!ioc->is_driver_loading) + mpt2sas_transport_port_remove(ioc, + sas_device->sas_address, + sas_device->sas_address_parent); + _scsih_sas_device_remove(ioc, sas_device); + } } /** @@ -1423,6 +1430,10 @@ _scsih_slave_destroy(struct scsi_device *sdev) { struct MPT2SAS_TARGET *sas_target_priv_data; struct scsi_target *starget; + struct Scsi_Host *shost; + struct MPT2SAS_ADAPTER *ioc; + struct _sas_device *sas_device; + unsigned long flags; if (!sdev->hostdata) return; @@ -1430,6 +1441,19 @@ _scsih_slave_destroy(struct scsi_device *sdev) starget = scsi_target(sdev); sas_target_priv_data = starget->hostdata; sas_target_priv_data->num_luns--; + + shost = dev_to_shost(&starget->dev); + ioc = shost_priv(shost); + + if (!(sas_target_priv_data->flags & MPT_TARGET_FLAGS_VOLUME)) { + spin_lock_irqsave(&ioc->sas_device_lock, flags); + sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc, + sas_target_priv_data->sas_address); + if (sas_device) + sas_device->starget = NULL; + spin_unlock_irqrestore(&ioc->sas_device_lock, flags); + } + kfree(sdev->hostdata); sdev->hostdata = NULL; } @@ -2045,7 +2069,8 @@ _scsih_slave_configure(struct scsi_device *sdev) __FILE__, __LINE__, __func__)); return 1; } - if (mpt2sas_config_get_volume_wwid(ioc, + if (sas_device->volume_handle && + mpt2sas_config_get_volume_wwid(ioc, sas_device->volume_handle, &sas_device->volume_wwid)) { dfailprintk(ioc, printk(MPT2SAS_WARN_FMT @@ -5893,8 +5918,11 @@ _scsih_reprobe_lun(struct scsi_device *sdev, void *no_uld_attach) static void _scsih_reprobe_target(struct scsi_target *starget, int no_uld_attach) { - struct MPT2SAS_TARGET *sas_target_priv_data = starget->hostdata; + struct MPT2SAS_TARGET *sas_target_priv_data; + if (starget == NULL) + return; + sas_target_priv_data = starget->hostdata; if (no_uld_attach) sas_target_priv_data->flags |= MPT_TARGET_FLAGS_RAID_COMPONENT; else @@ -7676,8 +7704,9 @@ _scsih_probe_boot_devices(struct MPT2SAS_ADAPTER *ioc) sas_device->sas_address_parent)) { _scsih_sas_device_remove(ioc, sas_device); } else if (!sas_device->starget) { - mpt2sas_transport_port_remove(ioc, sas_address, - sas_address_parent); + if (!ioc->is_driver_loading) + mpt2sas_transport_port_remove(ioc, sas_address, + sas_address_parent); _scsih_sas_device_remove(ioc, sas_device); } } @@ -7731,9 +7760,10 @@ _scsih_probe_sas(struct MPT2SAS_ADAPTER *ioc) kfree(sas_device); continue; } else if (!sas_device->starget) { - mpt2sas_transport_port_remove(ioc, - sas_device->sas_address, - sas_device->sas_address_parent); + if (!ioc->is_driver_loading) + mpt2sas_transport_port_remove(ioc, + sas_device->sas_address, + sas_device->sas_address_parent); list_del(&sas_device->list); kfree(sas_device); continue; -- cgit v1.2.3 From 6e88020025ccb6a6a0a54098acf1e187d2c9368c Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:37:54 +0530 Subject: [SCSI] mpt2sas: Bump driver version to 10.100.00.00 Bump driver vesion to 10.100.00.00 Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_base.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index ce2bd9bf40f7..3c3babc7d260 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -69,11 +69,11 @@ #define MPT2SAS_DRIVER_NAME "mpt2sas" #define MPT2SAS_AUTHOR "LSI Corporation " #define MPT2SAS_DESCRIPTION "LSI MPT Fusion SAS 2.0 Device Driver" -#define MPT2SAS_DRIVER_VERSION "09.100.00.01" -#define MPT2SAS_MAJOR_VERSION 09 +#define MPT2SAS_DRIVER_VERSION "10.100.00.00" +#define MPT2SAS_MAJOR_VERSION 10 #define MPT2SAS_MINOR_VERSION 100 #define MPT2SAS_BUILD_VERSION 00 -#define MPT2SAS_RELEASE_VERSION 01 +#define MPT2SAS_RELEASE_VERSION 00 /* * Set MPT2SAS_SG_DEPTH value based on user input. -- cgit v1.2.3 From 21208ae5a21fd5f337e987cde11374eaf2fe70b4 Mon Sep 17 00:00:00 2001 From: Dave Kleikamp Date: Wed, 19 Oct 2011 11:49:04 -0500 Subject: [SCSI] sd: remove arbitrary SD_MAX_DISKS namespace limit There is no reason to limit the SCSI disk namespace to sdXXX. Add new error messages to sd_probe() in the unlikely event that either ida_get_new() or sd_format_disk_name() fail. Signed-off-by: Dave Kleikamp Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 12 +++++------- drivers/scsi/sd.h | 6 ------ 2 files changed, 5 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index a7942e5c8be8..fa3a5918009c 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2590,18 +2590,16 @@ static int sd_probe(struct device *dev) spin_unlock(&sd_index_lock); } while (error == -EAGAIN); - if (error) + if (error) { + sdev_printk(KERN_WARNING, sdp, "sd_probe: memory exhausted.\n"); goto out_put; - - if (index >= SD_MAX_DISKS) { - error = -ENODEV; - sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name space exhausted.\n"); - goto out_free_index; } error = sd_format_disk_name("sd", index, gd->disk_name, DISK_NAME_LEN); - if (error) + if (error) { + sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name length exceeded.\n"); goto out_free_index; + } sdkp->device = sdp; sdkp->driver = &sd_template; diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 6ad798bfd52a..4163f2910e3d 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -8,12 +8,6 @@ */ #define SD_MAJORS 16 -/* - * This is limited by the naming scheme enforced in sd_probe, - * add another character to it if you really need more disks. - */ -#define SD_MAX_DISKS (((26 * 26) + 26 + 1) * 26) - /* * Time out in seconds for disks and Magneto-opticals (which are slower). */ -- cgit v1.2.3 From 3308511c93e6ad0d3c58984ecd6e5e57f96b12c8 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Fri, 23 Sep 2011 19:48:18 +0200 Subject: [SCSI] Make scsi_free_queue() kill pending SCSI commands Make sure that SCSI device removal via scsi_remove_host() does finish all pending SCSI commands. Currently that's not the case and hence removal of a SCSI host during I/O can cause a deadlock. See also "blkdev_issue_discard() hangs forever if underlying storage device is removed" (http://bugzilla.kernel.org/show_bug.cgi?id=40472). See also http://lkml.org/lkml/2011/8/27/6. Signed-off-by: Bart Van Assche Cc: Signed-off-by: James Bottomley --- drivers/scsi/hosts.c | 9 ++++++--- drivers/scsi/scsi_lib.c | 9 +++++++++ 2 files changed, 15 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 4f7a5829ea4c..351dc0b86fab 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -286,6 +286,7 @@ static void scsi_host_dev_release(struct device *dev) { struct Scsi_Host *shost = dev_to_shost(dev); struct device *parent = dev->parent; + struct request_queue *q; scsi_proc_hostdir_rm(shost->hostt); @@ -293,9 +294,11 @@ static void scsi_host_dev_release(struct device *dev) kthread_stop(shost->ehandler); if (shost->work_q) destroy_workqueue(shost->work_q); - if (shost->uspace_req_q) { - kfree(shost->uspace_req_q->queuedata); - scsi_free_queue(shost->uspace_req_q); + q = shost->uspace_req_q; + if (q) { + kfree(q->queuedata); + q->queuedata = NULL; + scsi_free_queue(q); } scsi_destroy_command_freelist(shost); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index fc3f168decb4..b4d43ae76132 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1698,6 +1698,15 @@ struct request_queue *scsi_alloc_queue(struct scsi_device *sdev) void scsi_free_queue(struct request_queue *q) { + unsigned long flags; + + WARN_ON(q->queuedata); + + /* cause scsi_request_fn() to kill all non-finished requests */ + spin_lock_irqsave(q->queue_lock, flags); + q->request_fn(q); + spin_unlock_irqrestore(q->queue_lock, flags); + blk_cleanup_queue(q); } -- cgit v1.2.3 From c68bf8eeaa57c852e74adcf597237be149eef830 Mon Sep 17 00:00:00 2001 From: Petr Uzel Date: Fri, 21 Oct 2011 13:31:09 +0200 Subject: [SCSI] st: fix race in st_scsi_execute_end MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The call to complete() in st_scsi_execute_end() wakes up sleeping thread in write_behind_check(), which frees the st_request, thus invalidating the pointer to the associated bio structure, which is then passed to the blk_rq_unmap_user(). Fix by storing pointer to bio structure into temporary local variable. This bug is present since at least linux-2.6.32. CC: stable@kernel.org Signed-off-by: Petr Uzel Reported-by: Juergen Groß Reviewed-by: Jan Kara Acked-by: Kai Mäkisara Signed-off-by: James Bottomley --- drivers/scsi/st.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 1871b8ae83ae..9b28f39bac26 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -462,14 +462,16 @@ static void st_scsi_execute_end(struct request *req, int uptodate) { struct st_request *SRpnt = req->end_io_data; struct scsi_tape *STp = SRpnt->stp; + struct bio *tmp; STp->buffer->cmdstat.midlevel_result = SRpnt->result = req->errors; STp->buffer->cmdstat.residual = req->resid_len; + tmp = SRpnt->bio; if (SRpnt->waiting) complete(SRpnt->waiting); - blk_rq_unmap_user(SRpnt->bio); + blk_rq_unmap_user(tmp); __blk_put_request(req->q, req); } -- cgit v1.2.3 From 99cc600cdd6f938633394523447378f7a43f4340 Mon Sep 17 00:00:00 2001 From: Bhanu Prakash Gollapudi Date: Sun, 23 Oct 2011 23:23:56 -0700 Subject: [SCSI] bnx2fc: Handle ABTS timeout during ulp timeout If the IO and the corresponding ABTS are not responded by a target, cleanup the IO and issue explicit logout when ulp timer expires while waiting for ABTS to complete. Wait for the session to be ready before returning to the SCSI layer. If the session is not ready let the SCSI-ml escalate the error recovery. Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc.h | 3 +++ drivers/scsi/bnx2fc/bnx2fc_io.c | 37 +++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index 63de1c7cd0cb..b843d710688c 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -145,6 +145,9 @@ #define REC_RETRY_COUNT 1 #define BNX2FC_NUM_ERR_BITS 63 +#define BNX2FC_RELOGIN_WAIT_TIME 200 +#define BNX2FC_RELOGIN_WAIT_CNT 10 + /* bnx2fc driver uses only one instance of fcoe_percpu_s */ extern struct fcoe_percpu_s bnx2fc_global; diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 0c64d184d731..84a78af83f90 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -1103,7 +1103,10 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd) struct fc_rport_libfc_priv *rp = rport->dd_data; struct bnx2fc_cmd *io_req; struct fc_lport *lport; + struct fc_rport_priv *rdata; struct bnx2fc_rport *tgt; + int logo_issued; + int wait_cnt = 0; int rc = FAILED; @@ -1192,8 +1195,40 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd) } else { printk(KERN_ERR PFX "eh_abort: io_req (xid = 0x%x) " "already in abts processing\n", io_req->xid); + if (cancel_delayed_work(&io_req->timeout_work)) + kref_put(&io_req->refcount, + bnx2fc_cmd_release); /* drop timer hold */ + bnx2fc_initiate_cleanup(io_req); + + spin_unlock_bh(&tgt->tgt_lock); + + wait_for_completion(&io_req->tm_done); + + spin_lock_bh(&tgt->tgt_lock); + io_req->wait_for_comp = 0; + rdata = io_req->tgt->rdata; + logo_issued = test_and_set_bit(BNX2FC_FLAG_EXPL_LOGO, + &tgt->flags); kref_put(&io_req->refcount, bnx2fc_cmd_release); spin_unlock_bh(&tgt->tgt_lock); + + if (!logo_issued) { + BNX2FC_IO_DBG(io_req, "Expl logo - tgt flags = 0x%lx\n", + tgt->flags); + mutex_lock(&lport->disc.disc_mutex); + lport->tt.rport_logoff(rdata); + mutex_unlock(&lport->disc.disc_mutex); + do { + msleep(BNX2FC_RELOGIN_WAIT_TIME); + /* + * If session not recovered, let SCSI-ml + * escalate error recovery. + */ + if (wait_cnt++ > BNX2FC_RELOGIN_WAIT_CNT) + return FAILED; + } while (!test_bit(BNX2FC_FLAG_SESSION_READY, + &tgt->flags)); + } return SUCCESS; } if (rc == FAILED) { @@ -1275,6 +1310,8 @@ void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req, io_req->refcount.refcount.counter, io_req->cmd_type); bnx2fc_scsi_done(io_req, DID_ERROR); kref_put(&io_req->refcount, bnx2fc_cmd_release); + if (io_req->wait_for_comp) + complete(&io_req->tm_done); } void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req, -- cgit v1.2.3 From 32c30454507b4f5f00661ac12ddbcc150983b9ff Mon Sep 17 00:00:00 2001 From: Bhanu Prakash Gollapudi Date: Sun, 23 Oct 2011 23:23:57 -0700 Subject: [SCSI] bnx2fc: Handle SRR LS_ACC drop scenario When SRR LS_ACC is dropped, the driver was not issuing ABTS for SRR when it times out. Since the target received SRR, it was able to send the XFER_RDY and the the original IO request completed successfully. In this condition ABTS was not sent during bnx2fc_srr_compl(). Fix this by first checking for ELS timeout and issue ABTS before checking if original IO request is complete. Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc_els.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/bnx2fc/bnx2fc_els.c b/drivers/scsi/bnx2fc/bnx2fc_els.c index fd382fe33f6e..ce0ce3e32f33 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_els.c +++ b/drivers/scsi/bnx2fc/bnx2fc_els.c @@ -268,17 +268,6 @@ void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg) orig_io_req = cb_arg->aborted_io_req; srr_req = cb_arg->io_req; - if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags)) { - BNX2FC_IO_DBG(srr_req, "srr_compl: xid - 0x%x completed", - orig_io_req->xid); - goto srr_compl_done; - } - if (test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) { - BNX2FC_IO_DBG(srr_req, "rec abts in prog " - "orig_io - 0x%x\n", - orig_io_req->xid); - goto srr_compl_done; - } if (test_and_clear_bit(BNX2FC_FLAG_ELS_TIMEOUT, &srr_req->req_flags)) { /* SRR timedout */ BNX2FC_IO_DBG(srr_req, "srr timed out, abort " @@ -290,6 +279,12 @@ void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg) "failed. issue cleanup\n"); bnx2fc_initiate_cleanup(srr_req); } + if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) || + test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) { + BNX2FC_IO_DBG(srr_req, "srr_compl:xid 0x%x flags = %lx", + orig_io_req->xid, orig_io_req->req_flags); + goto srr_compl_done; + } orig_io_req->srr_retry++; if (orig_io_req->srr_retry <= SRR_RETRY_COUNT) { struct bnx2fc_rport *tgt = orig_io_req->tgt; @@ -311,6 +306,12 @@ void bnx2fc_srr_compl(struct bnx2fc_els_cb_arg *cb_arg) } goto srr_compl_done; } + if (test_bit(BNX2FC_FLAG_IO_COMPL, &orig_io_req->req_flags) || + test_bit(BNX2FC_FLAG_ISSUE_ABTS, &orig_io_req->req_flags)) { + BNX2FC_IO_DBG(srr_req, "srr_compl:xid - 0x%x flags = %lx", + orig_io_req->xid, orig_io_req->req_flags); + goto srr_compl_done; + } mp_req = &(srr_req->mp_req); fc_hdr = &(mp_req->resp_fc_hdr); resp_len = mp_req->resp_len; -- cgit v1.2.3 From fd2541893da50cbc1e547a9aaebf104bed859915 Mon Sep 17 00:00:00 2001 From: Bhanu Prakash Gollapudi Date: Sun, 23 Oct 2011 23:23:58 -0700 Subject: [SCSI] bnx2fc: Bumped version to 1.0.9 Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc.h | 2 +- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index b843d710688c..049ea907e04a 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -62,7 +62,7 @@ #include "bnx2fc_constants.h" #define BNX2FC_NAME "bnx2fc" -#define BNX2FC_VERSION "1.0.8" +#define BNX2FC_VERSION "1.0.9" #define PFX "bnx2fc: " diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 85bcc4b55965..8c6156a10d90 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -22,7 +22,7 @@ DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu); #define DRV_MODULE_NAME "bnx2fc" #define DRV_MODULE_VERSION BNX2FC_VERSION -#define DRV_MODULE_RELDATE "Oct 02, 2011" +#define DRV_MODULE_RELDATE "Oct 21, 2011" static char version[] __devinitdata = -- cgit v1.2.3 From a63ec37629415848b5704eda5110fe8e750032ca Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Mon, 24 Oct 2011 18:10:26 -0400 Subject: [SCSI] pmcraid: pmcraid_chr_ioctl uses incorrect argument order to kmalloc() Size is 1st arg, not second. Signed-off-by: Dave Jones Signed-off-by: James Bottomley --- drivers/scsi/pmcraid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index b86db84d6f32..5163edb925cb 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -4102,7 +4102,7 @@ static long pmcraid_chr_ioctl( struct pmcraid_ioctl_header *hdr = NULL; int retval = -ENOTTY; - hdr = kmalloc(GFP_KERNEL, sizeof(struct pmcraid_ioctl_header)); + hdr = kmalloc(sizeof(struct pmcraid_ioctl_header), GFP_KERNEL); if (!hdr) { pmcraid_err("faile to allocate memory for ioctl header\n"); -- cgit v1.2.3 From d424754cbe97fe581985dca4400347cb275d7eb2 Mon Sep 17 00:00:00 2001 From: Andrew Vasquez Date: Wed, 26 Oct 2011 14:20:13 -0700 Subject: [SCSI] qla2xxx: Correct inadvertent clearing of RISC_INTR status. During heavy I/O (CPU-affinity mode enabled) and CLI/Agent interactions, the driver would report periodic mailbox command timeout statuses. Within the CPU-affinity ISR handler, the driver should check the 'disable-msix-handshake' flag in deciding whether or not to clear HCCRX_CLR_RISC_INT. The mode is not specific to a dedicated queue, instead, applies to the current 'ha' context. Signed-off-by: Andrew Vasquez Signed-off-by: Chad Dupuis Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_isr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 3474e86e98ab..2516adf1aeea 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2279,7 +2279,7 @@ qla25xx_msix_rsp_q(int irq, void *dev_id) ha = rsp->hw; /* Clear the interrupt, if enabled, for this response queue */ - if (rsp->options & ~BIT_6) { + if (!ha->flags.disable_msix_handshake) { reg = &ha->iobase->isp24; spin_lock_irqsave(&ha->hardware_lock, flags); WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); -- cgit v1.2.3 From c0d6a4d17b3848750b0285861b7a807811a0cfa6 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Wed, 26 Oct 2011 16:20:53 -0500 Subject: [SCSI] hpsa: set max sectors instead of taking the default Set the max hardware sectors in the SCSI host template to 8192 to allow for larger i/o's (8192 is the same limit the cciss driver currently has.) Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 9825ecf34957..43a882bc751d 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -484,6 +484,7 @@ static struct scsi_host_template hpsa_driver_template = { #endif .sdev_attrs = hpsa_sdev_attrs, .shost_attrs = hpsa_shost_attrs, + .max_sectors = 8192, }; -- cgit v1.2.3 From 03ab31f4c14f259bfa160543c83dbfd93d6fb3e2 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Wed, 26 Oct 2011 16:20:58 -0500 Subject: [SCSI] hpsa: remove unused busy_initializing and busy_scanning Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 3 --- drivers/scsi/hpsa.h | 2 -- 2 files changed, 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 43a882bc751d..c89bed12cb55 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4121,7 +4121,6 @@ reinit_after_soft_reset: return -ENOMEM; h->pdev = pdev; - h->busy_initializing = 1; h->intr_mode = hpsa_simple_mode ? SIMPLE_MODE_INT : PERF_MODE_INT; INIT_LIST_HEAD(&h->cmpQ); INIT_LIST_HEAD(&h->reqQ); @@ -4230,7 +4229,6 @@ reinit_after_soft_reset: hpsa_hba_inquiry(h); hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */ - h->busy_initializing = 0; return 1; clean4: @@ -4239,7 +4237,6 @@ clean4: free_irq(h->intr[h->intr_mode], h); clean2: clean1: - h->busy_initializing = 0; kfree(h); return rc; } diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 7f53ceaa7239..111b79e32b2b 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -95,8 +95,6 @@ struct ctlr_info { unsigned long *cmd_pool_bits; int nr_allocs; int nr_frees; - int busy_initializing; - int busy_scanning; int scan_finished; spinlock_t scan_lock; wait_queue_head_t scan_wait_queue; -- cgit v1.2.3 From cfe5badcab2e993e71ebebbc07c21c270e5580c0 Mon Sep 17 00:00:00 2001 From: Scott Teel Date: Wed, 26 Oct 2011 16:21:07 -0500 Subject: [SCSI] hpsa: rename HPSA_MAX_SCSI_DEVS_PER_HBA Rename HPSA_MAX_SCSI_DEVS_PER_HBA to HPSA_MAX_DEVICES Signed-off-by: Scott Teel Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 23 ++++++++++------------- drivers/scsi/hpsa.h | 4 ++-- 2 files changed, 12 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index c89bed12cb55..f661ad1e500c 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -567,16 +567,16 @@ static int hpsa_find_target_lun(struct ctlr_info *h, * assumes h->devlock is held */ int i, found = 0; - DECLARE_BITMAP(lun_taken, HPSA_MAX_SCSI_DEVS_PER_HBA); + DECLARE_BITMAP(lun_taken, HPSA_MAX_DEVICES); - memset(&lun_taken[0], 0, HPSA_MAX_SCSI_DEVS_PER_HBA >> 3); + memset(&lun_taken[0], 0, HPSA_MAX_DEVICES >> 3); for (i = 0; i < h->ndevices; i++) { if (h->dev[i]->bus == bus && h->dev[i]->target != -1) set_bit(h->dev[i]->target, lun_taken); } - for (i = 0; i < HPSA_MAX_SCSI_DEVS_PER_HBA; i++) { + for (i = 0; i < HPSA_MAX_DEVICES; i++) { if (!test_bit(i, lun_taken)) { /* *bus = 1; */ *target = i; @@ -599,7 +599,7 @@ static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno, unsigned char addr1[8], addr2[8]; struct hpsa_scsi_dev_t *sd; - if (n >= HPSA_MAX_SCSI_DEVS_PER_HBA) { + if (n >= HPSA_MAX_DEVICES) { dev_err(&h->pdev->dev, "too many devices, some will be " "inaccessible.\n"); return -1; @@ -674,7 +674,7 @@ static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno, struct hpsa_scsi_dev_t *removed[], int *nremoved) { /* assumes h->devlock is held */ - BUG_ON(entry < 0 || entry >= HPSA_MAX_SCSI_DEVS_PER_HBA); + BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); removed[*nremoved] = h->dev[entry]; (*nremoved)++; @@ -703,7 +703,7 @@ static void hpsa_scsi_remove_entry(struct ctlr_info *h, int hostno, int entry, int i; struct hpsa_scsi_dev_t *sd; - BUG_ON(entry < 0 || entry >= HPSA_MAX_SCSI_DEVS_PER_HBA); + BUG_ON(entry < 0 || entry >= HPSA_MAX_DEVICES); sd = h->dev[entry]; removed[*nremoved] = h->dev[entry]; @@ -815,10 +815,8 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno, int nadded, nremoved; struct Scsi_Host *sh = NULL; - added = kzalloc(sizeof(*added) * HPSA_MAX_SCSI_DEVS_PER_HBA, - GFP_KERNEL); - removed = kzalloc(sizeof(*removed) * HPSA_MAX_SCSI_DEVS_PER_HBA, - GFP_KERNEL); + added = kzalloc(sizeof(*added) * HPSA_MAX_DEVICES, GFP_KERNEL); + removed = kzalloc(sizeof(*removed) * HPSA_MAX_DEVICES, GFP_KERNEL); if (!added || !removed) { dev_warn(&h->pdev->dev, "out of memory in " @@ -1847,8 +1845,7 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) int raid_ctlr_position; DECLARE_BITMAP(lunzerobits, HPSA_MAX_TARGETS_PER_CTLR); - currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_SCSI_DEVS_PER_HBA, - GFP_KERNEL); + currentsd = kzalloc(sizeof(*currentsd) * HPSA_MAX_DEVICES, GFP_KERNEL); physdev_list = kzalloc(reportlunsize, GFP_KERNEL); logdev_list = kzalloc(reportlunsize, GFP_KERNEL); tmpdevice = kzalloc(sizeof(*tmpdevice), GFP_KERNEL); @@ -1957,7 +1954,7 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) default: break; } - if (ncurrent >= HPSA_MAX_SCSI_DEVS_PER_HBA) + if (ncurrent >= HPSA_MAX_DEVICES) break; } adjust_hpsa_scsi_table(h, hostno, currentsd, ncurrent); diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 111b79e32b2b..4de9f71d8bff 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -102,8 +102,8 @@ struct ctlr_info { struct Scsi_Host *scsi_host; spinlock_t devlock; /* to protect hba[ctlr]->dev[]; */ int ndevices; /* number of used elements in .dev[] array. */ -#define HPSA_MAX_SCSI_DEVS_PER_HBA 256 - struct hpsa_scsi_dev_t *dev[HPSA_MAX_SCSI_DEVS_PER_HBA]; +#define HPSA_MAX_DEVICES 256 + struct hpsa_scsi_dev_t *dev[HPSA_MAX_DEVICES]; /* * Performant mode tables. */ -- cgit v1.2.3 From b7ec021fe6fe979dbd4e62604a4942f964b12864 Mon Sep 17 00:00:00 2001 From: Scott Teel Date: Wed, 26 Oct 2011 16:21:12 -0500 Subject: [SCSI] hpsa: fix potential array overflow in hpsa_update_scsi_devices The currentsd[] array in hpsa_update_scsi_devices had room for 256 devices. The code was iterating over however many physical and logical devices plus an additional number of possible external MSA2XXX controllers, which together could potentially exceed 256. We increased the size of the currentsd array to 1024 + 1024 + 32 + 1 elements to reflect a reasonable maximum possible number of devices which might be encountered. We also don't just walk off the end of the array if the array controller reports more devices than we are prepared to handle, we just ignore the excessive devices. Signed-off-by: Scott Teel Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 8 +++++++- drivers/scsi/hpsa.h | 1 - drivers/scsi/hpsa_cmd.h | 5 ++++- 3 files changed, 11 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index f661ad1e500c..f3fd9f1711f7 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1734,7 +1734,6 @@ static int add_msa2xxx_enclosure_device(struct ctlr_info *h, if (is_scsi_rev_5(h)) return 0; /* p1210m doesn't need to do this. */ -#define MAX_MSA2XXX_ENCLOSURES 32 if (*nmsa2xxx_enclosures >= MAX_MSA2XXX_ENCLOSURES) { dev_warn(&h->pdev->dev, "Maximum number of MSA2XXX " "enclosures exceeded. Check your hardware " @@ -1868,6 +1867,13 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno) /* Allocate the per device structures */ for (i = 0; i < ndevs_to_allocate; i++) { + if (i >= HPSA_MAX_DEVICES) { + dev_warn(&h->pdev->dev, "maximum devices (%d) exceeded." + " %d devices ignored.\n", HPSA_MAX_DEVICES, + ndevs_to_allocate - HPSA_MAX_DEVICES); + break; + } + currentsd[i] = kzalloc(sizeof(*currentsd[i]), GFP_KERNEL); if (!currentsd[i]) { dev_warn(&h->pdev->dev, "out of memory at %s:%d\n", diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 4de9f71d8bff..73858bc22e57 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -102,7 +102,6 @@ struct ctlr_info { struct Scsi_Host *scsi_host; spinlock_t devlock; /* to protect hba[ctlr]->dev[]; */ int ndevices; /* number of used elements in .dev[] array. */ -#define HPSA_MAX_DEVICES 256 struct hpsa_scsi_dev_t *dev[HPSA_MAX_DEVICES]; /* * Performant mode tables. diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 55d741b019db..3fd4715935c2 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -123,8 +123,11 @@ union u64bit { /* FIXME this is a per controller value (barf!) */ #define HPSA_MAX_TARGETS_PER_CTLR 16 -#define HPSA_MAX_LUN 256 +#define HPSA_MAX_LUN 1024 #define HPSA_MAX_PHYS_LUN 1024 +#define MAX_MSA2XXX_ENCLOSURES 32 +#define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \ + MAX_MSA2XXX_ENCLOSURES + 1) /* + 1 is for the controller itself */ /* SCSI-3 Commands */ #pragma pack(1) -- cgit v1.2.3 From bb158eabda984851d7964d968b9859383f98a701 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Wed, 26 Oct 2011 16:21:17 -0500 Subject: [SCSI] hpsa: fix flush cache transfer length We weren't filling in the transfer length of the flush cache command (it transfers 4 bytes of zeroes). Firmware didn't seem to be bothered by this, but it should be fixed. Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index f3fd9f1711f7..57ed00f7050a 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -2876,6 +2876,8 @@ static void fill_cmd(struct CommandList *c, u8 cmd, struct ctlr_info *h, c->Request.Timeout = 0; c->Request.CDB[0] = BMIC_WRITE; c->Request.CDB[6] = BMIC_CACHE_FLUSH; + c->Request.CDB[7] = (size >> 8) & 0xFF; + c->Request.CDB[8] = size & 0xFF; break; case TEST_UNIT_READY: c->Request.CDBLen = 6; -- cgit v1.2.3 From a0c124137a40fc22730ae87caf17e821f2dce1ed Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Wed, 26 Oct 2011 16:22:04 -0500 Subject: [SCSI] hpsa: detect controller lockup When controller lockup condition is detected, we should fail all outstanding commands and disable the controller. This will enable multipath solutions to recover gracefully. Signed-off-by: Stephen M. Cameron Signed-off-by: James Bottomley --- drivers/scsi/hpsa.c | 184 ++++++++++++++++++++++++++++++++++++++++++++++++++-- drivers/scsi/hpsa.h | 5 ++ 2 files changed, 185 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 57ed00f7050a..e0119377ffe3 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -48,6 +48,7 @@ #include #include #include +#include #include "hpsa_cmd.h" #include "hpsa.h" @@ -127,6 +128,10 @@ static struct board_type products[] = { static int number_of_controllers; +static struct list_head hpsa_ctlr_list = LIST_HEAD_INIT(hpsa_ctlr_list); +static spinlock_t lockup_detector_lock; +static struct task_struct *hpsa_lockup_detector; + static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id); static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id); static int hpsa_ioctl(struct scsi_device *dev, int cmd, void *arg); @@ -1337,6 +1342,22 @@ static inline void hpsa_scsi_do_simple_cmd_core(struct ctlr_info *h, wait_for_completion(&wait); } +static void hpsa_scsi_do_simple_cmd_core_if_no_lockup(struct ctlr_info *h, + struct CommandList *c) +{ + unsigned long flags; + + /* If controller lockup detected, fake a hardware error. */ + spin_lock_irqsave(&h->lock, flags); + if (unlikely(h->lockup_detected)) { + spin_unlock_irqrestore(&h->lock, flags); + c->err_info->CommandStatus = CMD_HARDWARE_ERR; + } else { + spin_unlock_irqrestore(&h->lock, flags); + hpsa_scsi_do_simple_cmd_core(h, c); + } +} + static void hpsa_scsi_do_simple_cmd_with_retry(struct ctlr_info *h, struct CommandList *c, int data_direction) { @@ -2052,8 +2073,14 @@ static int hpsa_scsi_queue_command_lck(struct scsi_cmnd *cmd, } memcpy(scsi3addr, dev->scsi3addr, sizeof(scsi3addr)); - /* Need a lock as this is being allocated from the pool */ spin_lock_irqsave(&h->lock, flags); + if (unlikely(h->lockup_detected)) { + spin_unlock_irqrestore(&h->lock, flags); + cmd->result = DID_ERROR << 16; + done(cmd); + return 0; + } + /* Need a lock as this is being allocated from the pool */ c = cmd_alloc(h); spin_unlock_irqrestore(&h->lock, flags); if (c == NULL) { /* trouble... */ @@ -2605,7 +2632,7 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp) c->SG[0].Len = iocommand.buf_size; c->SG[0].Ext = 0; /* we are not chaining*/ } - hpsa_scsi_do_simple_cmd_core(h, c); + hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c); if (iocommand.buf_size > 0) hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL); check_ioctl_unit_attention(h, c); @@ -2728,7 +2755,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp) c->SG[i].Ext = 0; } } - hpsa_scsi_do_simple_cmd_core(h, c); + hpsa_scsi_do_simple_cmd_core_if_no_lockup(h, c); if (sg_used) hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL); check_ioctl_unit_attention(h, c); @@ -3097,6 +3124,7 @@ static irqreturn_t hpsa_intx_discard_completions(int irq, void *dev_id) if (interrupt_not_for_us(h)) return IRQ_NONE; spin_lock_irqsave(&h->lock, flags); + h->last_intr_timestamp = get_jiffies_64(); while (interrupt_pending(h)) { raw_tag = get_next_completion(h); while (raw_tag != FIFO_EMPTY) @@ -3116,6 +3144,7 @@ static irqreturn_t hpsa_msix_discard_completions(int irq, void *dev_id) return IRQ_NONE; spin_lock_irqsave(&h->lock, flags); + h->last_intr_timestamp = get_jiffies_64(); raw_tag = get_next_completion(h); while (raw_tag != FIFO_EMPTY) raw_tag = next_command(h); @@ -3132,6 +3161,7 @@ static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id) if (interrupt_not_for_us(h)) return IRQ_NONE; spin_lock_irqsave(&h->lock, flags); + h->last_intr_timestamp = get_jiffies_64(); while (interrupt_pending(h)) { raw_tag = get_next_completion(h); while (raw_tag != FIFO_EMPTY) { @@ -3152,6 +3182,7 @@ static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id) u32 raw_tag; spin_lock_irqsave(&h->lock, flags); + h->last_intr_timestamp = get_jiffies_64(); raw_tag = get_next_completion(h); while (raw_tag != FIFO_EMPTY) { if (hpsa_tag_contains_index(raw_tag)) @@ -4089,6 +4120,149 @@ static void hpsa_undo_allocations_after_kdump_soft_reset(struct ctlr_info *h) kfree(h); } +static void remove_ctlr_from_lockup_detector_list(struct ctlr_info *h) +{ + assert_spin_locked(&lockup_detector_lock); + if (!hpsa_lockup_detector) + return; + if (h->lockup_detected) + return; /* already stopped the lockup detector */ + list_del(&h->lockup_list); +} + +/* Called when controller lockup detected. */ +static void fail_all_cmds_on_list(struct ctlr_info *h, struct list_head *list) +{ + struct CommandList *c = NULL; + + assert_spin_locked(&h->lock); + /* Mark all outstanding commands as failed and complete them. */ + while (!list_empty(list)) { + c = list_entry(list->next, struct CommandList, list); + c->err_info->CommandStatus = CMD_HARDWARE_ERR; + finish_cmd(c, c->Header.Tag.lower); + } +} + +static void controller_lockup_detected(struct ctlr_info *h) +{ + unsigned long flags; + + assert_spin_locked(&lockup_detector_lock); + remove_ctlr_from_lockup_detector_list(h); + h->access.set_intr_mask(h, HPSA_INTR_OFF); + spin_lock_irqsave(&h->lock, flags); + h->lockup_detected = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET); + spin_unlock_irqrestore(&h->lock, flags); + dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x\n", + h->lockup_detected); + pci_disable_device(h->pdev); + spin_lock_irqsave(&h->lock, flags); + fail_all_cmds_on_list(h, &h->cmpQ); + fail_all_cmds_on_list(h, &h->reqQ); + spin_unlock_irqrestore(&h->lock, flags); +} + +#define HEARTBEAT_SAMPLE_INTERVAL (10 * HZ) +#define HEARTBEAT_CHECK_MINIMUM_INTERVAL (HEARTBEAT_SAMPLE_INTERVAL / 2) + +static void detect_controller_lockup(struct ctlr_info *h) +{ + u64 now; + u32 heartbeat; + unsigned long flags; + + assert_spin_locked(&lockup_detector_lock); + now = get_jiffies_64(); + /* If we've received an interrupt recently, we're ok. */ + if (time_after64(h->last_intr_timestamp + + (HEARTBEAT_CHECK_MINIMUM_INTERVAL), now)) + return; + + /* + * If we've already checked the heartbeat recently, we're ok. + * This could happen if someone sends us a signal. We + * otherwise don't care about signals in this thread. + */ + if (time_after64(h->last_heartbeat_timestamp + + (HEARTBEAT_CHECK_MINIMUM_INTERVAL), now)) + return; + + /* If heartbeat has not changed since we last looked, we're not ok. */ + spin_lock_irqsave(&h->lock, flags); + heartbeat = readl(&h->cfgtable->HeartBeat); + spin_unlock_irqrestore(&h->lock, flags); + if (h->last_heartbeat == heartbeat) { + controller_lockup_detected(h); + return; + } + + /* We're ok. */ + h->last_heartbeat = heartbeat; + h->last_heartbeat_timestamp = now; +} + +static int detect_controller_lockup_thread(void *notused) +{ + struct ctlr_info *h; + unsigned long flags; + + while (1) { + struct list_head *this, *tmp; + + schedule_timeout_interruptible(HEARTBEAT_SAMPLE_INTERVAL); + if (kthread_should_stop()) + break; + spin_lock_irqsave(&lockup_detector_lock, flags); + list_for_each_safe(this, tmp, &hpsa_ctlr_list) { + h = list_entry(this, struct ctlr_info, lockup_list); + detect_controller_lockup(h); + } + spin_unlock_irqrestore(&lockup_detector_lock, flags); + } + return 0; +} + +static void add_ctlr_to_lockup_detector_list(struct ctlr_info *h) +{ + unsigned long flags; + + spin_lock_irqsave(&lockup_detector_lock, flags); + list_add_tail(&h->lockup_list, &hpsa_ctlr_list); + spin_unlock_irqrestore(&lockup_detector_lock, flags); +} + +static void start_controller_lockup_detector(struct ctlr_info *h) +{ + /* Start the lockup detector thread if not already started */ + if (!hpsa_lockup_detector) { + spin_lock_init(&lockup_detector_lock); + hpsa_lockup_detector = + kthread_run(detect_controller_lockup_thread, + NULL, "hpsa"); + } + if (!hpsa_lockup_detector) { + dev_warn(&h->pdev->dev, + "Could not start lockup detector thread\n"); + return; + } + add_ctlr_to_lockup_detector_list(h); +} + +static void stop_controller_lockup_detector(struct ctlr_info *h) +{ + unsigned long flags; + + spin_lock_irqsave(&lockup_detector_lock, flags); + remove_ctlr_from_lockup_detector_list(h); + /* If the list of ctlr's to monitor is empty, stop the thread */ + if (list_empty(&hpsa_ctlr_list)) { + kthread_stop(hpsa_lockup_detector); + hpsa_lockup_detector = NULL; + } + spin_unlock_irqrestore(&lockup_detector_lock, flags); +} + static int __devinit hpsa_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -4234,6 +4408,7 @@ reinit_after_soft_reset: hpsa_hba_inquiry(h); hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */ + start_controller_lockup_detector(h); return 1; clean4: @@ -4296,10 +4471,11 @@ static void __devexit hpsa_remove_one(struct pci_dev *pdev) struct ctlr_info *h; if (pci_get_drvdata(pdev) == NULL) { - dev_err(&pdev->dev, "unable to remove device \n"); + dev_err(&pdev->dev, "unable to remove device\n"); return; } h = pci_get_drvdata(pdev); + stop_controller_lockup_detector(h); hpsa_unregister_scsi(h); /* unhook from SCSI subsystem */ hpsa_shutdown(pdev); iounmap(h->vaddr); diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 73858bc22e57..91edafb8c7e6 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -121,6 +121,11 @@ struct ctlr_info { unsigned char reply_pool_wraparound; u32 *blockFetchTable; unsigned char *hba_inquiry_data; + u64 last_intr_timestamp; + u32 last_heartbeat; + u64 last_heartbeat_timestamp; + u32 lockup_detected; + struct list_head lockup_list; }; #define HPSA_ABORT_MSG 0 #define HPSA_DEVICE_RESET_MSG 1 -- cgit v1.2.3 From 6be55f79a216ccb9f364476b12e5b151a5f6bdb6 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Tue, 25 Oct 2011 11:00:07 +0200 Subject: mtd: clean up usage of MTD_DOCPROBE_ADDRESS Depending on whether MTD_DOCPROBE_ADVANCED is set or not, MTD_DOCPROBE_ADDRESS will default to either 0x0000 or 0. That should lead to (basically) identical code in docprobe.c. The current two defaults should be merged. And, while we're at it, if MTD_DOCPROBE is set MTD_DOCPROBE_ADDRESS will always be set. (MTD_DOCPROBE_ADDRESS depends on MTD_DOCPROBE and it has a default value.) So the check whether CONFIG_MTD_DOCPROBE_ADDRESS is defined is unnecessary and should be dropped. Signed-off-by: Paul Bolle Signed-off-by: Artem Bityutskiy --- drivers/mtd/devices/Kconfig | 3 +-- drivers/mtd/devices/docprobe.c | 5 ----- 2 files changed, 1 insertion(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig index 6d91a1f049c8..283d887f7825 100644 --- a/drivers/mtd/devices/Kconfig +++ b/drivers/mtd/devices/Kconfig @@ -278,8 +278,7 @@ config MTD_DOCPROBE_ADVANCED config MTD_DOCPROBE_ADDRESS hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED depends on MTD_DOCPROBE - default "0x0000" if MTD_DOCPROBE_ADVANCED - default "0" if !MTD_DOCPROBE_ADVANCED + default "0x0" ---help--- By default, the probe for DiskOnChip devices will look for a DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000. diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c index d374603493a7..45116bb30297 100644 --- a/drivers/mtd/devices/docprobe.c +++ b/drivers/mtd/devices/docprobe.c @@ -50,11 +50,6 @@ #include #include -/* Where to look for the devices? */ -#ifndef CONFIG_MTD_DOCPROBE_ADDRESS -#define CONFIG_MTD_DOCPROBE_ADDRESS 0 -#endif - static unsigned long doc_config_location = CONFIG_MTD_DOCPROBE_ADDRESS; module_param(doc_config_location, ulong, 0); -- cgit v1.2.3 From 7406060e292c389fe6f38bd23493de9b57f2f4fc Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 30 Oct 2011 00:11:53 +0200 Subject: mtd: tests: don't use mtd0 as a default mtd tests may erase the mtd device, so force the user to specify which mtd device to test by using the module parameter. Disable the default (using mtd0) since this may destroy a vital part of the flash if the module is inserted accidently or carelessly. Reported-by: Roland Kletzing Signed-off-by: Wolfram Sang Signed-off-by: Artem Bityutskiy --- drivers/mtd/tests/mtd_oobtest.c | 9 ++++++++- drivers/mtd/tests/mtd_pagetest.c | 9 ++++++++- drivers/mtd/tests/mtd_readtest.c | 8 +++++++- drivers/mtd/tests/mtd_speedtest.c | 9 ++++++++- drivers/mtd/tests/mtd_stresstest.c | 9 ++++++++- drivers/mtd/tests/mtd_subpagetest.c | 9 ++++++++- drivers/mtd/tests/mtd_torturetest.c | 9 ++++++++- 7 files changed, 55 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c index 6bcff42296a9..933f7e5f32d3 100644 --- a/drivers/mtd/tests/mtd_oobtest.c +++ b/drivers/mtd/tests/mtd_oobtest.c @@ -30,7 +30,7 @@ #define PRINT_PREF KERN_INFO "mtd_oobtest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -366,6 +366,13 @@ static int __init mtd_oobtest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + printk(PRINT_PREF "MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c index 186b14c02307..afafb6935fd0 100644 --- a/drivers/mtd/tests/mtd_pagetest.c +++ b/drivers/mtd/tests/mtd_pagetest.c @@ -30,7 +30,7 @@ #define PRINT_PREF KERN_INFO "mtd_pagetest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -504,6 +504,13 @@ static int __init mtd_pagetest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + printk(PRINT_PREF "MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c index 756045345f00..550fe51225a7 100644 --- a/drivers/mtd/tests/mtd_readtest.c +++ b/drivers/mtd/tests/mtd_readtest.c @@ -29,7 +29,7 @@ #define PRINT_PREF KERN_INFO "mtd_readtest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -170,6 +170,12 @@ static int __init mtd_readtest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + return -EINVAL; + } + printk(PRINT_PREF "MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c index 79d53ee62295..493b367bdd35 100644 --- a/drivers/mtd/tests/mtd_speedtest.c +++ b/drivers/mtd/tests/mtd_speedtest.c @@ -29,7 +29,7 @@ #define PRINT_PREF KERN_INFO "mtd_speedtest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -361,6 +361,13 @@ static int __init mtd_speedtest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + if (count) printk(PRINT_PREF "MTD device: %d count: %d\n", dev, count); else diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c index 3c9008adbe3b..52ffd9120e0d 100644 --- a/drivers/mtd/tests/mtd_stresstest.c +++ b/drivers/mtd/tests/mtd_stresstest.c @@ -30,7 +30,7 @@ #define PRINT_PREF KERN_INFO "mtd_stresstest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -250,6 +250,13 @@ static int __init mtd_stresstest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + printk(PRINT_PREF "MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c index 2b51842d08fa..1a05bfac4eee 100644 --- a/drivers/mtd/tests/mtd_subpagetest.c +++ b/drivers/mtd/tests/mtd_subpagetest.c @@ -29,7 +29,7 @@ #define PRINT_PREF KERN_INFO "mtd_subpagetest: " -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -379,6 +379,13 @@ static int __init mtd_subpagetest_init(void) printk(KERN_INFO "\n"); printk(KERN_INFO "=================================================\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + printk(PRINT_PREF "MTD device: %d\n", dev); mtd = get_mtd_device(NULL, dev); diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c index 25786ce97c8e..03ab649a6964 100644 --- a/drivers/mtd/tests/mtd_torturetest.c +++ b/drivers/mtd/tests/mtd_torturetest.c @@ -46,7 +46,7 @@ static int pgcnt; module_param(pgcnt, int, S_IRUGO); MODULE_PARM_DESC(pgcnt, "number of pages per eraseblock to torture (0 => all)"); -static int dev; +static int dev = -EINVAL; module_param(dev, int, S_IRUGO); MODULE_PARM_DESC(dev, "MTD device number to use"); @@ -213,6 +213,13 @@ static int __init tort_init(void) printk(KERN_INFO "=================================================\n"); printk(PRINT_PREF "Warning: this program is trying to wear out your " "flash, stop it if this is not wanted.\n"); + + if (dev < 0) { + printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n"); + printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n"); + return -EINVAL; + } + printk(PRINT_PREF "MTD device: %d\n", dev); printk(PRINT_PREF "torture %d eraseblocks (%d-%d) of mtd%d\n", ebcnt, eb, eb + ebcnt - 1, dev); -- cgit v1.2.3 From 48e546b7f281f251893baa40769581fd15f085fb Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Sun, 30 Oct 2011 17:28:49 +0100 Subject: mtd: tests: annotate as DANGEROUS in Kconfig The tests may erase mtd devices, so annotate them as suggested per coding style and add a paragraph to the help text as well. Artem: amended the help test a bit. Signed-off-by: Wolfram Sang Signed-off-by: Artem Bityutskiy --- drivers/mtd/Kconfig | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig index 4925aa962af3..82c202b874ff 100644 --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig @@ -13,13 +13,16 @@ menuconfig MTD if MTD config MTD_TESTS - tristate "MTD tests support" + tristate "MTD tests support (DANGEROUS)" depends on m help This option includes various MTD tests into compilation. The tests should normally be compiled as kernel modules. The modules perform various checks and verifications when loaded. + WARNING: some of the tests will ERASE entire MTD device which they + test. Do not use these tests unless you really know what you do. + config MTD_REDBOOT_PARTS tristate "RedBoot partition table parsing" ---help--- -- cgit v1.2.3 From a0eda62552eba4e1f92d5354bb65c68fb6b45f87 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Mon, 31 Oct 2011 08:05:36 +0100 Subject: virtio-blk: use ida to allocate disk index Based on a patch by Mark Wu Current index allocation in virtio-blk is based on a monotonically increasing variable "index". This means we'll run out of numbers after a while. It also could cause confusion about the disk name in the case of hot-plugging disks. Change virtio-blk to use ida to allocate index, instead. Signed-off-by: Michael S. Tsirkin Signed-off-by: Jens Axboe --- drivers/block/virtio_blk.c | 30 ++++++++++++++++++++++++------ 1 file changed, 24 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 079c08808d8a..e7a5750a93d9 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -8,10 +8,13 @@ #include #include #include +#include #define PART_BITS 4 -static int major, index; +static int major; +static DEFINE_IDA(vd_index_ida); + struct workqueue_struct *virtblk_wq; struct virtio_blk @@ -35,6 +38,9 @@ struct virtio_blk /* What host tells us, plus 2 for header & tailer. */ unsigned int sg_elems; + /* Ida index - used to track minor number allocations. */ + int index; + /* Scatterlist: can be too big for stack. */ struct scatterlist sg[/*sg_elems*/]; }; @@ -276,6 +282,11 @@ static int index_to_minor(int index) return index << PART_BITS; } +static int minor_to_index(int minor) +{ + return minor >> PART_BITS; +} + static ssize_t virtblk_serial_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -341,14 +352,17 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) { struct virtio_blk *vblk; struct request_queue *q; - int err; + int err, index; u64 cap; u32 v, blk_size, sg_elems, opt_io_size; u16 min_io_size; u8 physical_block_exp, alignment_offset; - if (index_to_minor(index) >= 1 << MINORBITS) - return -ENOSPC; + err = ida_simple_get(&vd_index_ida, 0, minor_to_index(1 << MINORBITS), + GFP_KERNEL); + if (err < 0) + goto out; + index = err; /* We need to know how many segments before we allocate. */ err = virtio_config_val(vdev, VIRTIO_BLK_F_SEG_MAX, @@ -365,7 +379,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) sizeof(vblk->sg[0]) * sg_elems, GFP_KERNEL); if (!vblk) { err = -ENOMEM; - goto out; + goto out_free_index; } INIT_LIST_HEAD(&vblk->reqs); @@ -421,7 +435,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) vblk->disk->private_data = vblk; vblk->disk->fops = &virtblk_fops; vblk->disk->driverfs_dev = &vdev->dev; - index++; + vblk->index = index; /* configure queue flush support */ if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH)) @@ -516,6 +530,8 @@ out_free_vq: vdev->config->del_vqs(vdev); out_free_vblk: kfree(vblk); +out_free_index: + ida_simple_remove(&vd_index_ida, index); out: return err; } @@ -523,6 +539,7 @@ out: static void __devexit virtblk_remove(struct virtio_device *vdev) { struct virtio_blk *vblk = vdev->priv; + int index = vblk->index; flush_work(&vblk->config_work); @@ -538,6 +555,7 @@ static void __devexit virtblk_remove(struct virtio_device *vdev) mempool_destroy(vblk->pool); vdev->config->del_vqs(vdev); kfree(vblk); + ida_simple_remove(&vd_index_ida, index); } static const struct virtio_device_id id_table[] = { -- cgit v1.2.3 From a18a920c70d48a8e4a2b750d8a183b3c1a4be514 Mon Sep 17 00:00:00 2001 From: "Moger, Babu" Date: Wed, 26 Oct 2011 14:29:38 -0400 Subject: [SCSI] scsi_dh: check queuedata pointer before proceeding further This patch validates sdev pointer in scsi_dh_activate before proceeding further. Without this check we might see the panic as below. I have seen this panic multiple times.. Call trace: #0 [ffff88007d647b50] machine_kexec at ffffffff81020902 #1 [ffff88007d647ba0] crash_kexec at ffffffff810875b0 #2 [ffff88007d647c70] oops_end at ffffffff8139c650 #3 [ffff88007d647c90] __bad_area_nosemaphore at ffffffff8102dd15 #4 [ffff88007d647d50] page_fault at ffffffff8139b8cf [exception RIP: scsi_dh_activate+0x82] RIP: ffffffffa0041922 RSP: ffff88007d647e00 RFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000000093c5 RDX: 00000000000093c5 RSI: ffffffffa02e6640 RDI: ffff88007cc88988 RBP: 000000000000000f R8: ffff88007d646000 R9: 0000000000000000 R10: ffff880082293790 R11: 00000000ffffffff R12: ffff88007cc88988 R13: 0000000000000000 R14: 0000000000000286 R15: ffff880037b845e0 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 #5 [ffff88007d647e38] run_workqueue at ffffffff81060268 #6 [ffff88007d647e78] worker_thread at ffffffff81060386 #7 [ffff88007d647ee8] kthread at ffffffff81064436 #8 [ffff88007d647f48] kernel_thread at ffffffff81003fba Signed-off-by: Babu Moger Cc: stable@kernel.org Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index 7c05fd9dccfd..339ea23a8675 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -441,7 +441,15 @@ int scsi_dh_activate(struct request_queue *q, activate_complete fn, void *data) spin_lock_irqsave(q->queue_lock, flags); sdev = q->queuedata; - if (sdev && sdev->scsi_dh_data) + if (!sdev) { + spin_unlock_irqrestore(q->queue_lock, flags); + err = SCSI_DH_NOSYS; + if (fn) + fn(data, err); + return err; + } + + if (sdev->scsi_dh_data) scsi_dh = sdev->scsi_dh_data->scsi_dh; dev = get_device(&sdev->sdev_gendev); if (!scsi_dh || !dev || -- cgit v1.2.3 From 5a918353ec97bbce2af83a950eb38e2781bfe9e7 Mon Sep 17 00:00:00 2001 From: Wayne Boyer Date: Thu, 27 Oct 2011 11:58:21 -0700 Subject: [SCSI] ipr: add definitions for additional adapter Add the appropriate definition and table entry for an additional adapter. Signed-off-by: Wayne Boyer Acked-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ipr.c | 2 ++ drivers/scsi/ipr.h | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 73e24b48dced..fd860d952b28 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -9122,6 +9122,8 @@ static struct pci_device_id ipr_pci_table[] __devinitdata = { PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, + { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, + PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h index 6d257e0dd6a5..ac84736c1b9c 100644 --- a/drivers/scsi/ipr.h +++ b/drivers/scsi/ipr.h @@ -82,6 +82,7 @@ #define IPR_SUBS_DEV_ID_57B4 0x033B #define IPR_SUBS_DEV_ID_57B2 0x035F +#define IPR_SUBS_DEV_ID_57C3 0x0353 #define IPR_SUBS_DEV_ID_57C4 0x0354 #define IPR_SUBS_DEV_ID_57C6 0x0357 #define IPR_SUBS_DEV_ID_57CC 0x035C -- cgit v1.2.3 From 0e2e27990e2dcd415f7974e8460a2f05accdddfb Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:04:50 -0700 Subject: [SCSI] isci: Lookup device references through requests in completions. The LLDD needs to obtain a reference to the device through the request itself and not through the domain_device, because the domain_device.lldd_dev is set to NULL early in the lldd_dev_gone call. This relies on the fact that the isci_remote_device object is keeping a seperate reference count of outstanding requests. TODO: unify the request count tracking with the isci_remote_device kref. The failure signature of this condition looks like the following log, where the important bits are the call to lldd_dev_gone followed by a crash in isci_terminate_request_core: [ 229.151541] isci 0000:0b:00.0: isci_remote_device_gone: domain_device = ffff8801492d4800, isci_device = ffff880143c657d0, isci_port = ffff880143c63658 [ 229.166007] isci 0000:0b:00.0: isci_remote_device_stop: isci_device = ffff880143c657d0 [ 229.175317] isci 0000:0b:00.0: isci_terminate_pending_requests: idev=ffff880143c657d0 request=ffff88014741f000; task=ffff8801470f46c0 old_state=2 [ 229.189702] isci 0000:0b:00.0: isci_terminate_request_core: device = ffff880143c657d0; request = ffff88014741f000 [ 229.201339] isci 0000:0b:00.0: isci_terminate_request_core: before completion wait (ffff88014741f000/ffff880149715ad0) [ 229.213414] isci 0000:0b:00.0: sci_controller_process_completions: completion queue entry:0x8000a0e9 [ 229.214401] BUG: unable to handle kernel NULL pointer dereference at 0000000000000228 [ 229.214401] IP:jdskirvi-testlbo [] sci_request_completed_state_enter+0x50/0xafb [isci] [ 229.214401] PGD 13d19e067 PUD 13d104067 PMD 0 [ 229.214401] Oops: 0000 [#1] SMP [ 229.214401] CPU 0 x kernel: [ 226 [ 229.214401] Modules linked in: ipv6 dm_multipath uinput nouveau snd_hda_codec_realtek snd_hda_intel ttm drm_kms_helper drm snd_hda_codec snd_hwdep snd_pcm snd_timer i2c_algo_bit isci snd libsas ioatdma mxm_wmi iTCO_wdt soundcore snd_page_alloc scsi_transport_sas iTCO_vendor_support wmi dca video i2c_i801 i2c_core [last unloaded: speedstep_lib] [ 229.214401] [ 229.214401] Pid: 5, comm: kworker/u:0 Not tainted 3.0.0-isci-11.7.29+ #30.353196] Buffer Intel Corporation Stoakley/Pearlcity Workstation [ 229.214401] RIP: 0010:[] I/O error on dev [] sci_request_completed_state_enter+0x50/0xafb [isci] [ 229.214401] RSP: 0018:ffff88014fc03d20 EFLAGS: 00010046 [ 229.214401] RAX: 0000000000000000 RBX: ffff88014741f000 RCX: 0000000000000000 [ 229.214401] RDX: ffffffffa00b2c90 RSI: 0000000000000017 RDI: ffff88014741f0a0 [ 229.214401] RBP: ffff88014fc03d90 R08: 0000000000000018 R09: 0000000000000000 [ 229.214401] R10: 0000000000000000 R11: ffffffff81a17d98 R12: 000000000000001d [ 229.214401] R13: ffff8801470f46c0 R14: 0000000000000000 R15: 0000000000008000 [ 229.214401] FS: 0000000000000000(0000) GS:ffff88014fc00000(0000) knlGS:0000000000000000 [ 229.214401] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 229.214401] CR2: 0000000000000228 CR3: 000000013ceaa000 CR4: 00000000000406f0 [ 229.214401] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 229.214401] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 229.214401] Process kworker/u:0 (pid: 5, threadinfo ffff880149714000, task ffff880149718000) [ 229.214401] Call Trace: [ 229.214401] [ 229.214401] [] sci_change_state+0x4a/0x4f [isci] [ 229.214401] [] sci_io_request_tc_completion+0x79c/0x7a0 [isci] [ 229.214401] [] sci_controller_process_completions+0x14f/0x396 [isci] [ 229.214401] [] ? spin_lock_irq+0xe/0x10 [isci] [ 229.214401] [] isci_host_completion_routine+0x71/0x2be [isci] [ 229.214401] [] ? mark_held_locks+0x52/0x70 [ 229.214401] [] tasklet_action+0x90/0xf1 [ 229.214401] [] __do_softirq+0xe5/0x1bf [ 229.214401] [] ? hrtimer_interrupt+0x129/0x1bb [ 229.214401] [] call_softirq+0x1c/0x30 [ 229.214401] [] do_softirq+0x4b/0xa3 [ 229.214401] [] irq_exit+0x53/0xb4 [ 229.214401] [] smp_apic_timer_interrupt+0x83/0x91 [ 229.214401] [] apic_timer_interrupt+0x13/0x20 [ 229.214401] [ 229.214401] [] ? retint_restore_args+0x13/0x13 [ 229.214401] [] ? trace_hardirqs_off+0xd/0xf [ 229.214401] [] ? vprintk+0x40b/0x452 [ 229.214401] [] printk+0x41/0x47 [ 229.214401] [] __dev_printk+0x78/0x7a [ 229.214401] [] dev_printk+0x45/0x47 [ 229.214401] [] isci_terminate_request_core+0x15d/0x317 [isci] [ 229.214401] [] isci_terminate_pending_requests+0x1a4/0x204 [isci] [ 229.214401] [] ? sas_phye_oob_error+0xc3/0xc3 [libsas] [ 229.214401] [] isci_remote_device_nuke_requests+0xa6/0xff [isci] [ 229.214401] [] isci_remote_device_stop+0x7c/0x166 [isci] [ 229.214401] [] ? sas_phye_oob_error+0xc3/0xc3 [libsas] [ 229.214401] [] isci_remote_device_gone+0x76/0x7e [isci] [ 229.214401] [] sas_notify_lldd_dev_gone+0x34/0x36 [libsas] [ 229.214401] [] sas_unregister_dev+0x57/0x9c [libsas] [ 229.214401] [] sas_unregister_domain_devices+0x36/0x65 [libsas] [ 229.214401] [] sas_deform_port+0x72/0x1ac [libsas] [ 229.214401] [] ? sas_phye_oob_error+0xc3/0xc3 [libsas] [ 229.214401] [] sas_phye_loss_of_signal+0x3e/0x42 [libsas] Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/request.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 565a9f0a9bc2..bfc7379727b1 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -2728,9 +2728,9 @@ static void isci_request_io_request_complete(struct isci_host *ihost, struct sas_task *task = isci_request_access_task(request); struct ssp_response_iu *resp_iu; unsigned long task_flags; - struct isci_remote_device *idev = isci_lookup_device(task->dev); - enum service_response response = SAS_TASK_UNDELIVERED; - enum exec_status status = SAS_ABORTED_TASK; + struct isci_remote_device *idev = request->target_device; + enum service_response response = SAS_TASK_UNDELIVERED; + enum exec_status status = SAS_ABORTED_TASK; enum isci_request_status request_status; enum isci_completion_selection complete_to_host = isci_perform_normal_io_completion; @@ -3061,7 +3061,6 @@ static void isci_request_io_request_complete(struct isci_host *ihost, /* complete the io request to the core. */ sci_controller_complete_io(ihost, request->target_device, request); - isci_put_device(idev); /* set terminated handle so it cannot be completed or * terminated again, and to cause any calls into abort -- cgit v1.2.3 From c2cb8a5fd7d5d8729a4fc25937c4d6564f9a7aa3 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:04:56 -0700 Subject: [SCSI] isci: Immediately fail I/O to removed devices. In the case where an I/O fails to start in isci_request_execute, only allow retries if the device is not already gone. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/task.c | 31 +++++++++++++++++++++---------- 1 file changed, 21 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index e2d9418683ce..e8cf17b024a4 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -212,16 +212,27 @@ int isci_task_execute_task(struct sas_task *task, int num, gfp_t gfp_flags) task->task_state_flags &= ~SAS_TASK_AT_INITIATOR; spin_unlock_irqrestore(&task->task_state_lock, flags); - /* Indicate QUEUE_FULL so that the scsi - * midlayer retries. if the request - * failed for remote device reasons, - * it gets returned as - * SAS_TASK_UNDELIVERED next time - * through. - */ - isci_task_refuse(ihost, task, - SAS_TASK_COMPLETE, - SAS_QUEUE_FULL); + if (test_bit(IDEV_GONE, &idev->flags)) { + + /* Indicate that the device + * is gone. + */ + isci_task_refuse(ihost, task, + SAS_TASK_UNDELIVERED, + SAS_DEVICE_UNKNOWN); + } else { + /* Indicate QUEUE_FULL so that + * the scsi midlayer retries. + * If the request failed for + * remote device reasons, it + * gets returned as + * SAS_TASK_UNDELIVERED next + * time through. + */ + isci_task_refuse(ihost, task, + SAS_TASK_COMPLETE, + SAS_QUEUE_FULL); + } } } } -- cgit v1.2.3 From d6891682220c18c01bf6838f30e37342c38fde44 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:01 -0700 Subject: [SCSI] isci: Fix tag leak in tasks and terminated requests. Make sure terminated requests and completed task tags are freed. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/task.c | 51 +++++++++++++++++++++++++++++------------------- 1 file changed, 31 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index e8cf17b024a4..7180b048c34b 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -552,11 +552,27 @@ static void isci_request_cleanup_completed_loiterer( if (isci_request != NULL) { spin_lock_irqsave(&isci_host->scic_lock, flags); + isci_free_tag(isci_host, isci_request->io_tag); + isci_request_change_state(isci_request, unallocated); list_del_init(&isci_request->dev_node); spin_unlock_irqrestore(&isci_host->scic_lock, flags); } } +static int isci_request_is_dealloc_managed(enum isci_request_status stat) +{ + switch (stat) { + case aborted: + case aborting: + case terminating: + case completed: + case dead: + return true; + default: + return false; + } +} + /** * isci_terminate_request_core() - This function will terminate the given * request, and wait for it to complete. This function must only be called @@ -574,7 +590,6 @@ static void isci_terminate_request_core(struct isci_host *ihost, enum sci_status status = SCI_SUCCESS; bool was_terminated = false; bool needs_cleanup_handling = false; - enum isci_request_status request_status; unsigned long flags; unsigned long termination_completed = 1; struct completion *io_request_completion; @@ -702,23 +717,11 @@ static void isci_terminate_request_core(struct isci_host *ihost, * needs to be detached and freed here. */ spin_lock_irqsave(&isci_request->state_lock, flags); - request_status = isci_request->status; - - if ((isci_request->ttype == io_task) /* TMFs are in their own thread */ - && ((request_status == aborted) - || (request_status == aborting) - || (request_status == terminating) - || (request_status == completed) - || (request_status == dead) - ) - ) { - - /* The completion routine won't free a request in - * the aborted/aborting/etc. states, so we do - * it here. - */ - needs_cleanup_handling = true; - } + + needs_cleanup_handling + = isci_request_is_dealloc_managed( + isci_request->status); + spin_unlock_irqrestore(&isci_request->state_lock, flags); } @@ -1329,8 +1332,16 @@ isci_task_request_complete(struct isci_host *ihost, */ set_bit(IREQ_TERMINATED, &ireq->flags); - isci_request_change_state(ireq, unallocated); - list_del_init(&ireq->dev_node); + /* As soon as something is in the terminate path, deallocation is + * managed there. Note that the final non-managed state of a task + * request is "completed". + */ + if ((ireq->status == completed) || + !isci_request_is_dealloc_managed(ireq->status)) { + isci_request_change_state(ireq, unallocated); + isci_free_tag(ihost, ireq->io_tag); + list_del_init(&ireq->dev_node); + } /* The task management part completes last. */ complete(tmf_complete); -- cgit v1.2.3 From b343dff1a269bcc0eac123ef541c5476b03d52c1 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:06 -0700 Subject: [SCSI] isci: Handle task request timeouts correctly. In the case where "task" requests timeout (note that this class of requests can also include SATA/STP soft reset FIS transmissions), handle the case where the task was being managed by some call to terminate the task request by completing both the tmf and the aborting process. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/task.c | 149 ++++++++++++++++++++++++++++++++++------------- drivers/scsi/isci/task.h | 2 + 2 files changed, 109 insertions(+), 42 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 7180b048c34b..4175f173868e 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -338,6 +338,61 @@ static struct isci_request *isci_task_request_build(struct isci_host *ihost, return ireq; } +/** +* isci_request_mark_zombie() - This function must be called with scic_lock held. +*/ +static void isci_request_mark_zombie(struct isci_host *ihost, struct isci_request *ireq) +{ + struct completion *tmf_completion = NULL; + struct completion *req_completion; + + /* Set the request state to "dead". */ + ireq->status = dead; + + req_completion = ireq->io_request_completion; + ireq->io_request_completion = NULL; + + if (ireq->ttype == io_task) { + + /* Break links with the sas_task - the callback is done + * elsewhere. + */ + struct sas_task *task = isci_request_access_task(ireq); + + if (task) + task->lldd_task = NULL; + + ireq->ttype_ptr.io_task_ptr = NULL; + } else { + /* Break links with the TMF request. */ + struct isci_tmf *tmf = isci_request_access_tmf(ireq); + + /* In the case where a task request is dying, + * the thread waiting on the complete will sit and + * timeout unless we wake it now. Since the TMF + * has a default error status, complete it here + * to wake the waiting thread. + */ + if (tmf) { + tmf_completion = tmf->complete; + tmf->complete = NULL; + } + ireq->ttype_ptr.tmf_task_ptr = NULL; + dev_dbg(&ihost->pdev->dev, "%s: tmf_code %d, managed tag %#x\n", + __func__, tmf->tmf_code, tmf->io_tag); + } + + dev_warn(&ihost->pdev->dev, "task context unrecoverable (tag: %#x)\n", + ireq->io_tag); + + /* Don't force waiting threads to timeout. */ + if (req_completion) + complete(req_completion); + + if (tmf_completion != NULL) + complete(tmf_completion); +} + static int isci_task_execute_tmf(struct isci_host *ihost, struct isci_remote_device *idev, struct isci_tmf *tmf, unsigned long timeout_ms) @@ -375,6 +430,7 @@ static int isci_task_execute_tmf(struct isci_host *ihost, /* Assign the pointer to the TMF's completion kernel wait structure. */ tmf->complete = &completion; + tmf->status = SCI_FAILURE_TIMEOUT; ireq = isci_task_request_build(ihost, idev, tag, tmf); if (!ireq) @@ -410,18 +466,35 @@ static int isci_task_execute_tmf(struct isci_host *ihost, msecs_to_jiffies(timeout_ms)); if (timeleft == 0) { + /* The TMF did not complete - this could be because + * of an unplug. Terminate the TMF request now. + */ spin_lock_irqsave(&ihost->scic_lock, flags); if (tmf->cb_state_func != NULL) - tmf->cb_state_func(isci_tmf_timed_out, tmf, tmf->cb_data); + tmf->cb_state_func(isci_tmf_timed_out, tmf, + tmf->cb_data); - sci_controller_terminate_request(ihost, - idev, - ireq); + sci_controller_terminate_request(ihost, idev, ireq); spin_unlock_irqrestore(&ihost->scic_lock, flags); - wait_for_completion(tmf->complete); + timeleft = wait_for_completion_timeout( + &completion, + msecs_to_jiffies(ISCI_TERMINATION_TIMEOUT_MSEC)); + + if (!timeleft) { + /* Strange condition - the termination of the TMF + * request timed-out. + */ + spin_lock_irqsave(&ihost->scic_lock, flags); + + /* If the TMF status has not changed, kill it. */ + if (tmf->status == SCI_FAILURE_TIMEOUT) + isci_request_mark_zombie(ihost, ireq); + + spin_unlock_irqrestore(&ihost->scic_lock, flags); + } } isci_print_tmf(tmf); @@ -645,42 +718,27 @@ static void isci_terminate_request_core(struct isci_host *ihost, __func__, isci_request, io_request_completion); /* Wait here for the request to complete. */ - #define TERMINATION_TIMEOUT_MSEC 500 termination_completed = wait_for_completion_timeout( io_request_completion, - msecs_to_jiffies(TERMINATION_TIMEOUT_MSEC)); + msecs_to_jiffies(ISCI_TERMINATION_TIMEOUT_MSEC)); if (!termination_completed) { /* The request to terminate has timed out. */ - spin_lock_irqsave(&ihost->scic_lock, - flags); + spin_lock_irqsave(&ihost->scic_lock, flags); /* Check for state changes. */ - if (!test_bit(IREQ_TERMINATED, &isci_request->flags)) { + if (!test_bit(IREQ_TERMINATED, + &isci_request->flags)) { /* The best we can do is to have the * request die a silent death if it * ever really completes. - * - * Set the request state to "dead", - * and clear the task pointer so that - * an actual completion event callback - * doesn't do anything. */ - isci_request->status = dead; - isci_request->io_request_completion - = NULL; - - if (isci_request->ttype == io_task) { - - /* Break links with the - * sas_task. - */ - isci_request->ttype_ptr.io_task_ptr - = NULL; - } + isci_request_mark_zombie(ihost, + isci_request); + needs_cleanup_handling = true; } else termination_completed = 1; @@ -1302,7 +1360,8 @@ isci_task_request_complete(struct isci_host *ihost, enum sci_task_status completion_status) { struct isci_tmf *tmf = isci_request_access_tmf(ireq); - struct completion *tmf_complete; + struct completion *tmf_complete = NULL; + struct completion *request_complete = ireq->io_request_completion; dev_dbg(&ihost->pdev->dev, "%s: request = %p, status=%d\n", @@ -1310,22 +1369,23 @@ isci_task_request_complete(struct isci_host *ihost, isci_request_change_state(ireq, completed); - tmf->status = completion_status; set_bit(IREQ_COMPLETE_IN_TARGET, &ireq->flags); - if (tmf->proto == SAS_PROTOCOL_SSP) { - memcpy(&tmf->resp.resp_iu, - &ireq->ssp.rsp, - SSP_RESP_IU_MAX_SIZE); - } else if (tmf->proto == SAS_PROTOCOL_SATA) { - memcpy(&tmf->resp.d2h_fis, - &ireq->stp.rsp, - sizeof(struct dev_to_host_fis)); + if (tmf) { + tmf->status = completion_status; + + if (tmf->proto == SAS_PROTOCOL_SSP) { + memcpy(&tmf->resp.resp_iu, + &ireq->ssp.rsp, + SSP_RESP_IU_MAX_SIZE); + } else if (tmf->proto == SAS_PROTOCOL_SATA) { + memcpy(&tmf->resp.d2h_fis, + &ireq->stp.rsp, + sizeof(struct dev_to_host_fis)); + } + /* PRINT_TMF( ((struct isci_tmf *)request->task)); */ + tmf_complete = tmf->complete; } - - /* PRINT_TMF( ((struct isci_tmf *)request->task)); */ - tmf_complete = tmf->complete; - sci_controller_complete_io(ihost, ireq->target_device, ireq); /* set the 'terminated' flag handle to make sure it cannot be terminated * or completed again. @@ -1343,8 +1403,13 @@ isci_task_request_complete(struct isci_host *ihost, list_del_init(&ireq->dev_node); } + /* "request_complete" is set if the task was being terminated. */ + if (request_complete) + complete(request_complete); + /* The task management part completes last. */ - complete(tmf_complete); + if (tmf_complete) + complete(tmf_complete); } static void isci_smp_task_timedout(unsigned long _task) diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index 15b18d158993..c9ccd0b5ff53 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -58,6 +58,8 @@ #include #include "host.h" +#define ISCI_TERMINATION_TIMEOUT_MSEC 500 + struct isci_request; /** -- cgit v1.2.3 From db49c2d037d50dfc67b29a4e013d6250ca97c3aa Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:11 -0700 Subject: [SCSI] isci: No task_done callbacks in error handler paths. libsas will cleanup pending sas_tasks after error handler path functions are called; do not call task_done callbacks. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/task.c | 69 ++++++++++-------------------------------------- 1 file changed, 14 insertions(+), 55 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 4175f173868e..c1f439bed717 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -585,53 +585,6 @@ static enum isci_request_status isci_task_validate_request_to_abort( return old_state; } -/** -* isci_request_cleanup_completed_loiterer() - This function will take care of -* the final cleanup on any request which has been explicitly terminated. -* @isci_host: This parameter specifies the ISCI host object -* @isci_device: This is the device to which the request is pending. -* @isci_request: This parameter specifies the terminated request object. -* @task: This parameter is the libsas I/O request. -*/ -static void isci_request_cleanup_completed_loiterer( - struct isci_host *isci_host, - struct isci_remote_device *isci_device, - struct isci_request *isci_request, - struct sas_task *task) -{ - unsigned long flags; - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device=%p, request=%p, task=%p\n", - __func__, isci_device, isci_request, task); - - if (task != NULL) { - - spin_lock_irqsave(&task->task_state_lock, flags); - task->lldd_task = NULL; - - task->task_state_flags &= ~SAS_TASK_NEED_DEV_RESET; - - isci_set_task_doneflags(task); - - /* If this task is not in the abort path, call task_done. */ - if (!(task->task_state_flags & SAS_TASK_STATE_ABORTED)) { - - spin_unlock_irqrestore(&task->task_state_lock, flags); - task->task_done(task); - } else - spin_unlock_irqrestore(&task->task_state_lock, flags); - } - - if (isci_request != NULL) { - spin_lock_irqsave(&isci_host->scic_lock, flags); - isci_free_tag(isci_host, isci_request->io_tag); - isci_request_change_state(isci_request, unallocated); - list_del_init(&isci_request->dev_node); - spin_unlock_irqrestore(&isci_host->scic_lock, flags); - } -} - static int isci_request_is_dealloc_managed(enum isci_request_status stat) { switch (stat) { @@ -666,7 +619,6 @@ static void isci_terminate_request_core(struct isci_host *ihost, unsigned long flags; unsigned long termination_completed = 1; struct completion *io_request_completion; - struct sas_task *task; dev_dbg(&ihost->pdev->dev, "%s: device = %p; request = %p\n", @@ -676,10 +628,6 @@ static void isci_terminate_request_core(struct isci_host *ihost, io_request_completion = isci_request->io_request_completion; - task = (isci_request->ttype == io_task) - ? isci_request_access_task(isci_request) - : NULL; - /* Note that we are not going to control * the target to abort the request. */ @@ -783,9 +731,20 @@ static void isci_terminate_request_core(struct isci_host *ihost, spin_unlock_irqrestore(&isci_request->state_lock, flags); } - if (needs_cleanup_handling) - isci_request_cleanup_completed_loiterer( - ihost, idev, isci_request, task); + if (needs_cleanup_handling) { + + dev_dbg(&ihost->pdev->dev, + "%s: cleanup isci_device=%p, request=%p\n", + __func__, idev, isci_request); + + if (isci_request != NULL) { + spin_lock_irqsave(&ihost->scic_lock, flags); + isci_free_tag(ihost, isci_request->io_tag); + isci_request_change_state(isci_request, unallocated); + list_del_init(&isci_request->dev_node); + spin_unlock_irqrestore(&ihost->scic_lock, flags); + } + } } } -- cgit v1.2.3 From 98145cb722b51ccc3ba27166c9803545accba950 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:16 -0700 Subject: [SCSI] isci: Fix task management for SMP, SATA and on dev remove. libsas uses the LLDD abort task interface to handle I/O timeouts in the SATA/STP and SMP discovery paths, so this change will terminate STP/SMP requests. Also, if the device is gone, the lldd will prevent libsas from further escalations in the error handler. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/remote_device.c | 47 ----------- drivers/scsi/isci/remote_device.h | 2 - drivers/scsi/isci/task.c | 169 +++++++++++++++----------------------- drivers/scsi/isci/task.h | 33 +------- 4 files changed, 67 insertions(+), 184 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index fbf9ce28c3f5..20c77edd4711 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1438,53 +1438,6 @@ int isci_remote_device_found(struct domain_device *domain_dev) return status == SCI_SUCCESS ? 0 : -ENODEV; } -/** - * isci_device_is_reset_pending() - This function will check if there is any - * pending reset condition on the device. - * @request: This parameter is the isci_device object. - * - * true if there is a reset pending for the device. - */ -bool isci_device_is_reset_pending( - struct isci_host *isci_host, - struct isci_remote_device *isci_device) -{ - struct isci_request *isci_request; - struct isci_request *tmp_req; - bool reset_is_pending = false; - unsigned long flags; - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p\n", __func__, isci_device); - - spin_lock_irqsave(&isci_host->scic_lock, flags); - - /* Check for reset on all pending requests. */ - list_for_each_entry_safe(isci_request, tmp_req, - &isci_device->reqs_in_process, dev_node) { - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p request = %p\n", - __func__, isci_device, isci_request); - - if (isci_request->ttype == io_task) { - struct sas_task *task = isci_request_access_task( - isci_request); - - spin_lock(&task->task_state_lock); - if (task->task_state_flags & SAS_TASK_NEED_DEV_RESET) - reset_is_pending = true; - spin_unlock(&task->task_state_lock); - } - } - - spin_unlock_irqrestore(&isci_host->scic_lock, flags); - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_device = %p reset_is_pending = %d\n", - __func__, isci_device, reset_is_pending); - - return reset_is_pending; -} /** * isci_device_clear_reset_pending() - This function will clear if any pending diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index e1747ea0d0ea..bee6dd2d0fe7 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -132,8 +132,6 @@ void isci_remote_device_nuke_requests(struct isci_host *ihost, struct isci_remote_device *idev); void isci_remote_device_gone(struct domain_device *domain_dev); int isci_remote_device_found(struct domain_device *domain_dev); -bool isci_device_is_reset_pending(struct isci_host *ihost, - struct isci_remote_device *idev); void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote_device *idev); /** diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index c1f439bed717..ec85beb1f979 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -920,22 +920,14 @@ int isci_task_lu_reset(struct domain_device *domain_device, u8 *lun) "%s: domain_device=%p, isci_host=%p; isci_device=%p\n", __func__, domain_device, isci_host, isci_device); - if (isci_device) - set_bit(IDEV_EH, &isci_device->flags); + if (!isci_device) { + /* If the device is gone, stop the escalations. */ + dev_dbg(&isci_host->pdev->dev, "%s: No dev\n", __func__); - /* If there is a device reset pending on any request in the - * device's list, fail this LUN reset request in order to - * escalate to the device reset. - */ - if (!isci_device || - isci_device_is_reset_pending(isci_host, isci_device)) { - dev_dbg(&isci_host->pdev->dev, - "%s: No dev (%p), or " - "RESET PENDING: domain_device=%p\n", - __func__, isci_device, domain_device); - ret = TMF_RESP_FUNC_FAILED; + ret = TMF_RESP_FUNC_COMPLETE; goto out; } + set_bit(IDEV_EH, &isci_device->flags); /* Send the task management part of the reset. */ if (sas_protocol_ata(domain_device->tproto)) { @@ -1044,7 +1036,7 @@ int isci_task_abort_task(struct sas_task *task) struct isci_tmf tmf; int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; - bool any_dev_reset = false; + int perform_termination = 0; /* Get the isci_request reference from the task. Note that * this check does not depend on the pending request list @@ -1066,89 +1058,34 @@ int isci_task_abort_task(struct sas_task *task) spin_unlock_irqrestore(&isci_host->scic_lock, flags); dev_dbg(&isci_host->pdev->dev, - "%s: task = %p\n", __func__, task); - - if (!isci_device || !old_request) - goto out; + "%s: dev = %p, task = %p, old_request == %p\n", + __func__, isci_device, task, old_request); - set_bit(IDEV_EH, &isci_device->flags); - - /* This version of the driver will fail abort requests for - * SATA/STP. Failing the abort request this way will cause the - * SCSI error handler thread to escalate to LUN reset - */ - if (sas_protocol_ata(task->task_proto)) { - dev_dbg(&isci_host->pdev->dev, - " task %p is for a STP/SATA device;" - " returning TMF_RESP_FUNC_FAILED\n" - " to cause a LUN reset...\n", task); - goto out; - } - - dev_dbg(&isci_host->pdev->dev, - "%s: old_request == %p\n", __func__, old_request); - - any_dev_reset = isci_device_is_reset_pending(isci_host, isci_device); - - spin_lock_irqsave(&task->task_state_lock, flags); - - any_dev_reset = any_dev_reset || (task->task_state_flags & SAS_TASK_NEED_DEV_RESET); + if (isci_device) + set_bit(IDEV_EH, &isci_device->flags); - /* If the extraction of the request reference from the task - * failed, then the request has been completed (or if there is a - * pending reset then this abort request function must be failed - * in order to escalate to the target reset). + /* Device reset conditions signalled in task_state_flags are the + * responsbility of libsas to observe at the start of the error + * handler thread. */ - if ((old_request == NULL) || any_dev_reset) { - - /* If the device reset task flag is set, fail the task - * management request. Otherwise, the original request - * has completed. - */ - if (any_dev_reset) { - - /* Turn off the task's DONE to make sure this - * task is escalated to a target reset. - */ - task->task_state_flags &= ~SAS_TASK_STATE_DONE; - - /* Make the reset happen as soon as possible. */ - task->task_state_flags |= SAS_TASK_NEED_DEV_RESET; - - spin_unlock_irqrestore(&task->task_state_lock, flags); - - /* Fail the task management request in order to - * escalate to the target reset. - */ - ret = TMF_RESP_FUNC_FAILED; - - dev_dbg(&isci_host->pdev->dev, - "%s: Failing task abort in order to " - "escalate to target reset because\n" - "SAS_TASK_NEED_DEV_RESET is set for " - "task %p on dev %p\n", - __func__, task, isci_device); - - - } else { - /* The request has already completed and there - * is nothing to do here other than to set the task - * done bit, and indicate that the task abort function - * was sucessful. - */ - isci_set_task_doneflags(task); - - spin_unlock_irqrestore(&task->task_state_lock, flags); + if (!isci_device || !old_request) { + /* The request has already completed and there + * is nothing to do here other than to set the task + * done bit, and indicate that the task abort function + * was sucessful. + */ + spin_lock_irqsave(&task->task_state_lock, flags); + task->task_state_flags |= SAS_TASK_STATE_DONE; + task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | + SAS_TASK_STATE_PENDING); + spin_unlock_irqrestore(&task->task_state_lock, flags); - ret = TMF_RESP_FUNC_COMPLETE; + ret = TMF_RESP_FUNC_COMPLETE; - dev_dbg(&isci_host->pdev->dev, - "%s: abort task not needed for %p\n", - __func__, task); - } + dev_dbg(&isci_host->pdev->dev, + "%s: abort task not needed for %p\n", + __func__, task); goto out; - } else { - spin_unlock_irqrestore(&task->task_state_lock, flags); } spin_lock_irqsave(&isci_host->scic_lock, flags); @@ -1177,24 +1114,44 @@ int isci_task_abort_task(struct sas_task *task) goto out; } if (task->task_proto == SAS_PROTOCOL_SMP || + sas_protocol_ata(task->task_proto) || test_bit(IREQ_COMPLETE_IN_TARGET, &old_request->flags)) { spin_unlock_irqrestore(&isci_host->scic_lock, flags); dev_dbg(&isci_host->pdev->dev, - "%s: SMP request (%d)" + "%s: %s request" " or complete_in_target (%d), thus no TMF\n", - __func__, (task->task_proto == SAS_PROTOCOL_SMP), + __func__, + ((task->task_proto == SAS_PROTOCOL_SMP) + ? "SMP" + : (sas_protocol_ata(task->task_proto) + ? "SATA/STP" + : "") + ), test_bit(IREQ_COMPLETE_IN_TARGET, &old_request->flags)); - /* Set the state on the task. */ - isci_task_all_done(task); - - ret = TMF_RESP_FUNC_COMPLETE; + if (test_bit(IREQ_COMPLETE_IN_TARGET, &old_request->flags)) { + spin_lock_irqsave(&task->task_state_lock, flags); + task->task_state_flags |= SAS_TASK_STATE_DONE; + task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | + SAS_TASK_STATE_PENDING); + spin_unlock_irqrestore(&task->task_state_lock, flags); + ret = TMF_RESP_FUNC_COMPLETE; + } else { + spin_lock_irqsave(&task->task_state_lock, flags); + task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | + SAS_TASK_STATE_PENDING); + spin_unlock_irqrestore(&task->task_state_lock, flags); + } - /* Stopping and SMP devices are not sent a TMF, and are not - * reset, but the outstanding I/O request is terminated below. + /* STP and SMP devices are not sent a TMF, but the + * outstanding I/O request is terminated below. This is + * because SATA/STP and SMP discovery path timeouts directly + * call the abort task interface for cleanup. */ + perform_termination = 1; + } else { /* Fill in the tmf stucture */ isci_task_build_abort_task_tmf(&tmf, isci_tmf_ssp_task_abort, @@ -1203,22 +1160,24 @@ int isci_task_abort_task(struct sas_task *task) spin_unlock_irqrestore(&isci_host->scic_lock, flags); - #define ISCI_ABORT_TASK_TIMEOUT_MS 500 /* half second timeout. */ + #define ISCI_ABORT_TASK_TIMEOUT_MS 500 /* 1/2 second timeout */ ret = isci_task_execute_tmf(isci_host, isci_device, &tmf, ISCI_ABORT_TASK_TIMEOUT_MS); - if (ret != TMF_RESP_FUNC_COMPLETE) + if (ret == TMF_RESP_FUNC_COMPLETE) + perform_termination = 1; + else dev_dbg(&isci_host->pdev->dev, - "%s: isci_task_send_tmf failed\n", - __func__); + "%s: isci_task_send_tmf failed\n", __func__); } - if (ret == TMF_RESP_FUNC_COMPLETE) { + if (perform_termination) { set_bit(IREQ_COMPLETE_IN_TARGET, &old_request->flags); /* Clean up the request on our side, and wait for the aborted * I/O to complete. */ - isci_terminate_request_core(isci_host, isci_device, old_request); + isci_terminate_request_core(isci_host, isci_device, + old_request); } /* Make sure we do not leave a reference to aborted_io_completion */ diff --git a/drivers/scsi/isci/task.h b/drivers/scsi/isci/task.h index c9ccd0b5ff53..bc78c0a41d5c 100644 --- a/drivers/scsi/isci/task.h +++ b/drivers/scsi/isci/task.h @@ -226,35 +226,6 @@ enum isci_completion_selection { isci_perform_error_io_completion /* Use sas_task_abort */ }; -static inline void isci_set_task_doneflags( - struct sas_task *task) -{ - /* Since no futher action will be taken on this task, - * make sure to mark it complete from the lldd perspective. - */ - task->task_state_flags |= SAS_TASK_STATE_DONE; - task->task_state_flags &= ~SAS_TASK_AT_INITIATOR; - task->task_state_flags &= ~SAS_TASK_STATE_PENDING; -} -/** - * isci_task_all_done() - This function clears the task bits to indicate the - * LLDD is done with the task. - * - * - */ -static inline void isci_task_all_done( - struct sas_task *task) -{ - unsigned long flags; - - /* Since no futher action will be taken on this task, - * make sure to mark it complete from the lldd perspective. - */ - spin_lock_irqsave(&task->task_state_lock, flags); - isci_set_task_doneflags(task); - spin_unlock_irqrestore(&task->task_state_lock, flags); -} - /** * isci_task_set_completion_status() - This function sets the completion status * for the request. @@ -336,7 +307,9 @@ isci_task_set_completion_status( /* Fall through to the normal case... */ case isci_perform_normal_io_completion: /* Normal notification (task_done) */ - isci_set_task_doneflags(task); + task->task_state_flags |= SAS_TASK_STATE_DONE; + task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | + SAS_TASK_STATE_PENDING); break; default: WARN_ONCE(1, "unknown task_notification_selection: %d\n", -- cgit v1.2.3 From 3b34c169f8197e02529fa3ec703703c2ce418c57 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:22 -0700 Subject: [SCSI] isci: Remove redundant isci_request.ttype field. Use the existing IREQ_TMF flag as a request type indicator. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/remote_device.c | 11 ++++------ drivers/scsi/isci/request.c | 45 +++++++++++---------------------------- drivers/scsi/isci/request.h | 6 ------ drivers/scsi/isci/task.c | 29 +++++++++++++------------ 4 files changed, 31 insertions(+), 60 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 20c77edd4711..9d9e33d2ed51 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1463,15 +1463,12 @@ void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote dev_dbg(&ihost->pdev->dev, "%s: idev = %p request = %p\n", __func__, idev, isci_request); - if (isci_request->ttype == io_task) { + if (!test_bit(IREQ_TMF, &isci_request->flags)) { + struct sas_task *task = isci_request_access_task(isci_request); - unsigned long flags2; - struct sas_task *task = isci_request_access_task( - isci_request); - - spin_lock_irqsave(&task->task_state_lock, flags2); + spin_lock(&task->task_state_lock); task->task_state_flags &= ~SAS_TASK_NEED_DEV_RESET; - spin_unlock_irqrestore(&task->task_state_lock, flags2); + spin_unlock(&task->task_state_lock); } } spin_unlock_irqrestore(&ihost->scic_lock, flags); diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index bfc7379727b1..192cb48d849a 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -191,7 +191,7 @@ static void sci_task_request_build_ssp_task_iu(struct isci_request *ireq) task_iu->task_func = isci_tmf->tmf_code; task_iu->task_tag = - (ireq->ttype == tmf_task) ? + (test_bit(IREQ_TMF, &ireq->flags)) ? isci_tmf->io_tag : SCI_CONTROLLER_INVALID_IO_TAG; } @@ -516,7 +516,7 @@ sci_io_request_construct_sata(struct isci_request *ireq, struct domain_device *dev = ireq->target_device->domain_dev; /* check for management protocols */ - if (ireq->ttype == tmf_task) { + if (test_bit(IREQ_TMF, &ireq->flags)) { struct isci_tmf *tmf = isci_request_access_tmf(ireq); if (tmf->tmf_code == isci_tmf_sata_srst_high || @@ -632,7 +632,7 @@ enum sci_status sci_task_request_construct_sata(struct isci_request *ireq) enum sci_status status = SCI_SUCCESS; /* check for management protocols */ - if (ireq->ttype == tmf_task) { + if (test_bit(IREQ_TMF, &ireq->flags)) { struct isci_tmf *tmf = isci_request_access_tmf(ireq); if (tmf->tmf_code == isci_tmf_sata_srst_high || @@ -2630,14 +2630,8 @@ static void isci_task_save_for_upper_layer_completion( switch (task_notification_selection) { case isci_perform_normal_io_completion: - /* Normal notification (task_done) */ - dev_dbg(&host->pdev->dev, - "%s: Normal - task = %p, response=%d (%d), status=%d (%d)\n", - __func__, - task, - task->task_status.resp, response, - task->task_status.stat, status); + /* Add to the completed list. */ list_add(&request->completed_node, &host->requests_to_complete); @@ -2650,13 +2644,6 @@ static void isci_task_save_for_upper_layer_completion( /* No notification to libsas because this request is * already in the abort path. */ - dev_dbg(&host->pdev->dev, - "%s: Aborted - task = %p, response=%d (%d), status=%d (%d)\n", - __func__, - task, - task->task_status.resp, response, - task->task_status.stat, status); - /* Wake up whatever process was waiting for this * request to complete. */ @@ -2673,30 +2660,22 @@ static void isci_task_save_for_upper_layer_completion( case isci_perform_error_io_completion: /* Use sas_task_abort */ - dev_dbg(&host->pdev->dev, - "%s: Error - task = %p, response=%d (%d), status=%d (%d)\n", - __func__, - task, - task->task_status.resp, response, - task->task_status.stat, status); /* Add to the aborted list. */ list_add(&request->completed_node, &host->requests_to_errorback); break; default: - dev_dbg(&host->pdev->dev, - "%s: Unknown - task = %p, response=%d (%d), status=%d (%d)\n", - __func__, - task, - task->task_status.resp, response, - task->task_status.stat, status); - /* Add to the error to libsas list. */ list_add(&request->completed_node, &host->requests_to_errorback); break; } + dev_dbg(&host->pdev->dev, + "%s: %d - task = %p, response=%d (%d), status=%d (%d)\n", + __func__, task_notification_selection, task, + (task) ? task->task_status.resp : 0, response, + (task) ? task->task_status.stat : 0, status); } static void isci_process_stp_response(struct sas_task *task, struct dev_to_host_fis *fis) @@ -3079,7 +3058,7 @@ static void sci_request_started_state_enter(struct sci_base_state_machine *sm) /* XXX as hch said always creating an internal sas_task for tmf * requests would simplify the driver */ - task = ireq->ttype == io_task ? isci_request_access_task(ireq) : NULL; + task = (test_bit(IREQ_TMF, &ireq->flags)) ? NULL : isci_request_access_task(ireq); /* all unaccelerated request types (non ssp or ncq) handled with * substates @@ -3563,7 +3542,7 @@ static struct isci_request *isci_io_request_from_tag(struct isci_host *ihost, ireq = isci_request_from_tag(ihost, tag); ireq->ttype_ptr.io_task_ptr = task; - ireq->ttype = io_task; + clear_bit(IREQ_TMF, &ireq->flags); task->lldd_task = ireq; return ireq; @@ -3577,7 +3556,7 @@ struct isci_request *isci_tmf_request_from_tag(struct isci_host *ihost, ireq = isci_request_from_tag(ihost, tag); ireq->ttype_ptr.tmf_task_ptr = isci_tmf; - ireq->ttype = tmf_task; + set_bit(IREQ_TMF, &ireq->flags); return ireq; } diff --git a/drivers/scsi/isci/request.h b/drivers/scsi/isci/request.h index f720b97b7bb5..be38933dd6df 100644 --- a/drivers/scsi/isci/request.h +++ b/drivers/scsi/isci/request.h @@ -77,11 +77,6 @@ enum isci_request_status { dead = 0x07 }; -enum task_type { - io_task = 0, - tmf_task = 1 -}; - enum sci_request_protocol { SCIC_NO_PROTOCOL, SCIC_SMP_PROTOCOL, @@ -116,7 +111,6 @@ struct isci_request { #define IREQ_ACTIVE 3 unsigned long flags; /* XXX kill ttype and ttype_ptr, allocate full sas_task */ - enum task_type ttype; union ttype_ptr_union { struct sas_task *io_task_ptr; /* When ttype==io_task */ struct isci_tmf *tmf_task_ptr; /* When ttype==tmf_task */ diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index ec85beb1f979..80e1a69ac96f 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -254,7 +254,7 @@ static enum sci_status isci_sata_management_task_request_build(struct isci_reque struct isci_tmf *isci_tmf; enum sci_status status; - if (tmf_task != ireq->ttype) + if (!test_bit(IREQ_TMF, &ireq->flags)) return SCI_FAILURE; isci_tmf = isci_request_access_tmf(ireq); @@ -352,18 +352,7 @@ static void isci_request_mark_zombie(struct isci_host *ihost, struct isci_reques req_completion = ireq->io_request_completion; ireq->io_request_completion = NULL; - if (ireq->ttype == io_task) { - - /* Break links with the sas_task - the callback is done - * elsewhere. - */ - struct sas_task *task = isci_request_access_task(ireq); - - if (task) - task->lldd_task = NULL; - - ireq->ttype_ptr.io_task_ptr = NULL; - } else { + if (test_bit(IREQ_TMF, &ireq->flags)) { /* Break links with the TMF request. */ struct isci_tmf *tmf = isci_request_access_tmf(ireq); @@ -380,6 +369,16 @@ static void isci_request_mark_zombie(struct isci_host *ihost, struct isci_reques ireq->ttype_ptr.tmf_task_ptr = NULL; dev_dbg(&ihost->pdev->dev, "%s: tmf_code %d, managed tag %#x\n", __func__, tmf->tmf_code, tmf->io_tag); + } else { + /* Break links with the sas_task - the callback is done + * elsewhere. + */ + struct sas_task *task = isci_request_access_task(ireq); + + if (task) + task->lldd_task = NULL; + + ireq->ttype_ptr.io_task_ptr = NULL; } dev_warn(&ihost->pdev->dev, "task context unrecoverable (tag: %#x)\n", @@ -803,7 +802,9 @@ void isci_terminate_pending_requests(struct isci_host *ihost, dev_dbg(&ihost->pdev->dev, "%s: idev=%p request=%p; task=%p old_state=%d\n", __func__, idev, ireq, - ireq->ttype == io_task ? isci_request_access_task(ireq) : NULL, + (!test_bit(IREQ_TMF, &ireq->flags) + ? isci_request_access_task(ireq) + : NULL), old_state); /* If the old_state is started: -- cgit v1.2.3 From 5412e25c55fc0b08041a451d8bee6f2b291099c2 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:27 -0700 Subject: [SCSI] isci: No need to manage the pending reset bit on pending requests. The lldd does not need to look at or manage the pending device reset bit in pending sas_tasks. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/remote_device.c | 35 ----------------------------------- drivers/scsi/isci/remote_device.h | 3 +-- drivers/scsi/isci/task.c | 3 --- 3 files changed, 1 insertion(+), 40 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/remote_device.c b/drivers/scsi/isci/remote_device.c index 9d9e33d2ed51..b207cd3b15a0 100644 --- a/drivers/scsi/isci/remote_device.c +++ b/drivers/scsi/isci/remote_device.c @@ -1438,38 +1438,3 @@ int isci_remote_device_found(struct domain_device *domain_dev) return status == SCI_SUCCESS ? 0 : -ENODEV; } - -/** - * isci_device_clear_reset_pending() - This function will clear if any pending - * reset condition flags on the device. - * @request: This parameter is the isci_device object. - * - * true if there is a reset pending for the device. - */ -void isci_device_clear_reset_pending(struct isci_host *ihost, struct isci_remote_device *idev) -{ - struct isci_request *isci_request; - struct isci_request *tmp_req; - unsigned long flags = 0; - - dev_dbg(&ihost->pdev->dev, "%s: idev=%p, ihost=%p\n", - __func__, idev, ihost); - - spin_lock_irqsave(&ihost->scic_lock, flags); - - /* Clear reset pending on all pending requests. */ - list_for_each_entry_safe(isci_request, tmp_req, - &idev->reqs_in_process, dev_node) { - dev_dbg(&ihost->pdev->dev, "%s: idev = %p request = %p\n", - __func__, idev, isci_request); - - if (!test_bit(IREQ_TMF, &isci_request->flags)) { - struct sas_task *task = isci_request_access_task(isci_request); - - spin_lock(&task->task_state_lock); - task->task_state_flags &= ~SAS_TASK_NEED_DEV_RESET; - spin_unlock(&task->task_state_lock); - } - } - spin_unlock_irqrestore(&ihost->scic_lock, flags); -} diff --git a/drivers/scsi/isci/remote_device.h b/drivers/scsi/isci/remote_device.h index bee6dd2d0fe7..483ee50152f3 100644 --- a/drivers/scsi/isci/remote_device.h +++ b/drivers/scsi/isci/remote_device.h @@ -132,8 +132,7 @@ void isci_remote_device_nuke_requests(struct isci_host *ihost, struct isci_remote_device *idev); void isci_remote_device_gone(struct domain_device *domain_dev); int isci_remote_device_found(struct domain_device *domain_dev); -void isci_device_clear_reset_pending(struct isci_host *ihost, - struct isci_remote_device *idev); + /** * sci_remote_device_stop() - This method will stop both transmission and * reception of link activity for the supplied remote device. This method diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 80e1a69ac96f..6d8ff15a03d1 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -1570,9 +1570,6 @@ static int isci_reset_device(struct isci_host *ihost, } spin_unlock_irqrestore(&ihost->scic_lock, flags); - /* Make sure all pending requests are able to be fully terminated. */ - isci_device_clear_reset_pending(ihost, idev); - /* If this is a device on an expander, disable BCN processing. */ if (!scsi_is_sas_phy_local(phy)) set_bit(IPORT_BCN_BLOCKED, &iport->flags); -- cgit v1.2.3 From 8e35a1398c5db981cd1a2d7635de9c15dd648527 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 27 Oct 2011 15:05:32 -0700 Subject: [SCSI] isci: Fix hard reset timeout conditions. A hard reset can timeout before or after the last phy in the port goes away. If after, then notify the OS that the last phy has failed. The recovery for the failed hard reset has been removed. This recovery code was unecessary in that the link would recover from the failure normally by a new link reset sequence or hotplug of the remote device. Signed-off-by: Jeff Skirvin Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/port.c | 101 +++++++++++++++++++++++++++-------------------- drivers/scsi/isci/port.h | 1 + 2 files changed, 60 insertions(+), 42 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index 8e59c8865dcd..bfeb87905aaf 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -350,6 +350,34 @@ static void isci_port_stop_complete(struct isci_host *ihost, dev_dbg(&ihost->pdev->dev, "Port stop complete\n"); } + +static bool is_port_ready_state(enum sci_port_states state) +{ + switch (state) { + case SCI_PORT_READY: + case SCI_PORT_SUB_WAITING: + case SCI_PORT_SUB_OPERATIONAL: + case SCI_PORT_SUB_CONFIGURING: + return true; + default: + return false; + } +} + +/* flag dummy rnc hanling when exiting a ready state */ +static void port_state_machine_change(struct isci_port *iport, + enum sci_port_states state) +{ + struct sci_base_state_machine *sm = &iport->sm; + enum sci_port_states old_state = sm->current_state_id; + + if (is_port_ready_state(old_state) && !is_port_ready_state(state)) + iport->ready_exit = true; + + sci_change_state(sm, state); + iport->ready_exit = false; +} + /** * isci_port_hard_reset_complete() - This function is called by the sci core * when the hard reset complete notification has been received. @@ -368,6 +396,26 @@ static void isci_port_hard_reset_complete(struct isci_port *isci_port, /* Save the status of the hard reset from the port. */ isci_port->hard_reset_status = completion_status; + if (completion_status != SCI_SUCCESS) { + + /* The reset failed. The port state is now SCI_PORT_FAILED. */ + if (isci_port->active_phy_mask == 0) { + + /* Generate the link down now to the host, since it + * was intercepted by the hard reset state machine when + * it really happened. + */ + isci_port_link_down(isci_port->isci_host, + &isci_port->isci_host->phys[ + isci_port->last_active_phy], + isci_port); + } + /* Advance the port state so that link state changes will be + * noticed. + */ + port_state_machine_change(isci_port, SCI_PORT_SUB_WAITING); + + } complete_all(&isci_port->hard_reset_complete); } @@ -657,6 +705,8 @@ void sci_port_deactivate_phy(struct isci_port *iport, struct isci_phy *iphy, struct isci_host *ihost = iport->owning_controller; iport->active_phy_mask &= ~(1 << iphy->phy_index); + if (!iport->active_phy_mask) + iport->last_active_phy = iphy->phy_index; iphy->max_negotiated_speed = SAS_LINK_RATE_UNKNOWN; @@ -683,33 +733,6 @@ static void sci_port_invalid_link_up(struct isci_port *iport, struct isci_phy *i } } -static bool is_port_ready_state(enum sci_port_states state) -{ - switch (state) { - case SCI_PORT_READY: - case SCI_PORT_SUB_WAITING: - case SCI_PORT_SUB_OPERATIONAL: - case SCI_PORT_SUB_CONFIGURING: - return true; - default: - return false; - } -} - -/* flag dummy rnc hanling when exiting a ready state */ -static void port_state_machine_change(struct isci_port *iport, - enum sci_port_states state) -{ - struct sci_base_state_machine *sm = &iport->sm; - enum sci_port_states old_state = sm->current_state_id; - - if (is_port_ready_state(old_state) && !is_port_ready_state(state)) - iport->ready_exit = true; - - sci_change_state(sm, state); - iport->ready_exit = false; -} - /** * sci_port_general_link_up_handler - phy can be assigned to port? * @sci_port: sci_port object for which has a phy that has gone link up. @@ -1622,7 +1645,8 @@ void sci_port_construct(struct isci_port *iport, u8 index, iport->logical_port_index = SCIC_SDS_DUMMY_PORT; iport->physical_port_index = index; iport->active_phy_mask = 0; - iport->ready_exit = false; + iport->last_active_phy = 0; + iport->ready_exit = false; iport->owning_controller = ihost; @@ -1676,7 +1700,7 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor { unsigned long flags; enum sci_status status; - int idx, ret = TMF_RESP_FUNC_COMPLETE; + int ret = TMF_RESP_FUNC_COMPLETE; dev_dbg(&ihost->pdev->dev, "%s: iport = %p\n", __func__, iport); @@ -1697,8 +1721,13 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor "%s: iport = %p; hard reset completion\n", __func__, iport); - if (iport->hard_reset_status != SCI_SUCCESS) + if (iport->hard_reset_status != SCI_SUCCESS) { ret = TMF_RESP_FUNC_FAILED; + + dev_err(&ihost->pdev->dev, + "%s: iport = %p; hard reset failed (0x%x)\n", + __func__, iport, iport->hard_reset_status); + } } else { ret = TMF_RESP_FUNC_FAILED; @@ -1718,18 +1747,6 @@ int isci_port_perform_hard_reset(struct isci_host *ihost, struct isci_port *ipor "%s: iport = %p; hard reset failed " "(0x%x) - driving explicit link fail for all phys\n", __func__, iport, iport->hard_reset_status); - - /* Down all phys in the port. */ - spin_lock_irqsave(&ihost->scic_lock, flags); - for (idx = 0; idx < SCI_MAX_PHYS; ++idx) { - struct isci_phy *iphy = iport->phy_table[idx]; - - if (!iphy) - continue; - sci_phy_stop(iphy); - sci_phy_start(iphy); - } - spin_unlock_irqrestore(&ihost->scic_lock, flags); } return ret; } diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index b50ecd4e8f9c..e84d22a309e3 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -109,6 +109,7 @@ struct isci_port { u8 logical_port_index; u8 physical_port_index; u8 active_phy_mask; + u8 last_active_phy; u16 reserved_rni; u16 reserved_tag; u32 started_request_count; -- cgit v1.2.3 From 52d74634335dfc0984ed955ed3c6ad6488495f96 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Thu, 27 Oct 2011 15:05:37 -0700 Subject: [SCSI] isci: revert bcn filtering The initial bcn filtering implementation was validated on a kernel baseline that predated the switch to new libata error handling. Also, prior to that conversion we borrowed the mvsas MVS_DEV_EH approach to prevent the unwanted extra ap->ops->phy_reset(ap) that occurred in the ata_bus_probe() path. After the conversion to new libata eh resets at discovery are more frequent and get filtered prematurely by IDEV_EH. The result is that our bcn filtering has been blocked from running and at discovery and it appears to stall discovery completion to the point of triggering hung task timeouts. So, revert the implementation for now. When it returns it will go into libsas proper. The domain rediscovery that takes place due to ->lldd_I_T_nexus_reset() events should now be properly waited for by the ata_port_wait_eh() call in ata_port_probe(). So the hard coded delay in the isci ->lldd_I_T_nexus_reset() and other libsas drivers should help debounce the libsas thread from seeing temporary device removals. Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/port.c | 45 +-------- drivers/scsi/isci/port.h | 5 - drivers/scsi/isci/task.c | 235 ----------------------------------------------- 3 files changed, 4 insertions(+), 281 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c index bfeb87905aaf..ac7f27749f97 100644 --- a/drivers/scsi/isci/port.c +++ b/drivers/scsi/isci/port.c @@ -145,48 +145,15 @@ static void sci_port_bcn_enable(struct isci_port *iport) } } -/* called under sci_lock to stabilize phy:port associations */ -void isci_port_bcn_enable(struct isci_host *ihost, struct isci_port *iport) -{ - int i; - - clear_bit(IPORT_BCN_BLOCKED, &iport->flags); - wake_up(&ihost->eventq); - - if (!test_and_clear_bit(IPORT_BCN_PENDING, &iport->flags)) - return; - - for (i = 0; i < ARRAY_SIZE(iport->phy_table); i++) { - struct isci_phy *iphy = iport->phy_table[i]; - - if (!iphy) - continue; - - ihost->sas_ha.notify_port_event(&iphy->sas_phy, - PORTE_BROADCAST_RCVD); - break; - } -} - static void isci_port_bc_change_received(struct isci_host *ihost, struct isci_port *iport, struct isci_phy *iphy) { - if (iport && test_bit(IPORT_BCN_BLOCKED, &iport->flags)) { - dev_dbg(&ihost->pdev->dev, - "%s: disabled BCN; isci_phy = %p, sas_phy = %p\n", - __func__, iphy, &iphy->sas_phy); - set_bit(IPORT_BCN_PENDING, &iport->flags); - atomic_inc(&iport->event); - wake_up(&ihost->eventq); - } else { - dev_dbg(&ihost->pdev->dev, - "%s: isci_phy = %p, sas_phy = %p\n", - __func__, iphy, &iphy->sas_phy); + dev_dbg(&ihost->pdev->dev, + "%s: isci_phy = %p, sas_phy = %p\n", + __func__, iphy, &iphy->sas_phy); - ihost->sas_ha.notify_port_event(&iphy->sas_phy, - PORTE_BROADCAST_RCVD); - } + ihost->sas_ha.notify_port_event(&iphy->sas_phy, PORTE_BROADCAST_RCVD); sci_port_bcn_enable(iport); } @@ -278,9 +245,6 @@ static void isci_port_link_down(struct isci_host *isci_host, /* check to see if this is the last phy on this port. */ if (isci_phy->sas_phy.port && isci_phy->sas_phy.port->num_phys == 1) { - atomic_inc(&isci_port->event); - isci_port_bcn_enable(isci_host, isci_port); - /* change the state for all devices on this port. The * next task sent to this device will be returned as * SAS_TASK_UNDELIVERED, and the scsi mid layer will @@ -1672,7 +1636,6 @@ void isci_port_init(struct isci_port *iport, struct isci_host *ihost, int index) init_completion(&iport->start_complete); iport->isci_host = ihost; isci_port_change_state(iport, isci_freed); - atomic_set(&iport->event, 0); } /** diff --git a/drivers/scsi/isci/port.h b/drivers/scsi/isci/port.h index e84d22a309e3..cb5ffbc38603 100644 --- a/drivers/scsi/isci/port.h +++ b/drivers/scsi/isci/port.h @@ -77,7 +77,6 @@ enum isci_status { /** * struct isci_port - isci direct attached sas port object - * @event: counts bcns and port stop events (for bcn filtering) * @ready_exit: several states constitute 'ready'. When exiting ready we * need to take extra port-teardown actions that are * skipped when exiting to another 'ready' state. @@ -92,10 +91,6 @@ enum isci_status { */ struct isci_port { enum isci_status status; - #define IPORT_BCN_BLOCKED 0 - #define IPORT_BCN_PENDING 1 - unsigned long flags; - atomic_t event; struct isci_host *isci_host; struct asd_sas_port sas_port; struct list_head remote_dev_list; diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 6d8ff15a03d1..66ad3dc89498 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -1331,226 +1331,10 @@ isci_task_request_complete(struct isci_host *ihost, complete(tmf_complete); } -static void isci_smp_task_timedout(unsigned long _task) -{ - struct sas_task *task = (void *) _task; - unsigned long flags; - - spin_lock_irqsave(&task->task_state_lock, flags); - if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) - task->task_state_flags |= SAS_TASK_STATE_ABORTED; - spin_unlock_irqrestore(&task->task_state_lock, flags); - - complete(&task->completion); -} - -static void isci_smp_task_done(struct sas_task *task) -{ - if (!del_timer(&task->timer)) - return; - complete(&task->completion); -} - -static int isci_smp_execute_task(struct isci_host *ihost, - struct domain_device *dev, void *req, - int req_size, void *resp, int resp_size) -{ - int res, retry; - struct sas_task *task = NULL; - - for (retry = 0; retry < 3; retry++) { - task = sas_alloc_task(GFP_KERNEL); - if (!task) - return -ENOMEM; - - task->dev = dev; - task->task_proto = dev->tproto; - sg_init_one(&task->smp_task.smp_req, req, req_size); - sg_init_one(&task->smp_task.smp_resp, resp, resp_size); - - task->task_done = isci_smp_task_done; - - task->timer.data = (unsigned long) task; - task->timer.function = isci_smp_task_timedout; - task->timer.expires = jiffies + 10*HZ; - add_timer(&task->timer); - - res = isci_task_execute_task(task, 1, GFP_KERNEL); - - if (res) { - del_timer(&task->timer); - dev_dbg(&ihost->pdev->dev, - "%s: executing SMP task failed:%d\n", - __func__, res); - goto ex_err; - } - - wait_for_completion(&task->completion); - res = -ECOMM; - if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) { - dev_dbg(&ihost->pdev->dev, - "%s: smp task timed out or aborted\n", - __func__); - isci_task_abort_task(task); - if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) { - dev_dbg(&ihost->pdev->dev, - "%s: SMP task aborted and not done\n", - __func__); - goto ex_err; - } - } - if (task->task_status.resp == SAS_TASK_COMPLETE && - task->task_status.stat == SAM_STAT_GOOD) { - res = 0; - break; - } - if (task->task_status.resp == SAS_TASK_COMPLETE && - task->task_status.stat == SAS_DATA_UNDERRUN) { - /* no error, but return the number of bytes of - * underrun */ - res = task->task_status.residual; - break; - } - if (task->task_status.resp == SAS_TASK_COMPLETE && - task->task_status.stat == SAS_DATA_OVERRUN) { - res = -EMSGSIZE; - break; - } else { - dev_dbg(&ihost->pdev->dev, - "%s: task to dev %016llx response: 0x%x " - "status 0x%x\n", __func__, - SAS_ADDR(dev->sas_addr), - task->task_status.resp, - task->task_status.stat); - sas_free_task(task); - task = NULL; - } - } -ex_err: - BUG_ON(retry == 3 && task != NULL); - sas_free_task(task); - return res; -} - -#define DISCOVER_REQ_SIZE 16 -#define DISCOVER_RESP_SIZE 56 - -int isci_smp_get_phy_attached_dev_type(struct isci_host *ihost, - struct domain_device *dev, - int phy_id, int *adt) -{ - struct smp_resp *disc_resp; - u8 *disc_req; - int res; - - disc_resp = kzalloc(DISCOVER_RESP_SIZE, GFP_KERNEL); - if (!disc_resp) - return -ENOMEM; - - disc_req = kzalloc(DISCOVER_REQ_SIZE, GFP_KERNEL); - if (disc_req) { - disc_req[0] = SMP_REQUEST; - disc_req[1] = SMP_DISCOVER; - disc_req[9] = phy_id; - } else { - kfree(disc_resp); - return -ENOMEM; - } - res = isci_smp_execute_task(ihost, dev, disc_req, DISCOVER_REQ_SIZE, - disc_resp, DISCOVER_RESP_SIZE); - if (!res) { - if (disc_resp->result != SMP_RESP_FUNC_ACC) - res = disc_resp->result; - else - *adt = disc_resp->disc.attached_dev_type; - } - kfree(disc_req); - kfree(disc_resp); - - return res; -} - -static void isci_wait_for_smp_phy_reset(struct isci_remote_device *idev, int phy_num) -{ - struct domain_device *dev = idev->domain_dev; - struct isci_port *iport = idev->isci_port; - struct isci_host *ihost = iport->isci_host; - int res, iteration = 0, attached_device_type; - #define STP_WAIT_MSECS 25000 - unsigned long tmo = msecs_to_jiffies(STP_WAIT_MSECS); - unsigned long deadline = jiffies + tmo; - enum { - SMP_PHYWAIT_PHYDOWN, - SMP_PHYWAIT_PHYUP, - SMP_PHYWAIT_DONE - } phy_state = SMP_PHYWAIT_PHYDOWN; - - /* While there is time, wait for the phy to go away and come back */ - while (time_is_after_jiffies(deadline) && phy_state != SMP_PHYWAIT_DONE) { - int event = atomic_read(&iport->event); - - ++iteration; - - tmo = wait_event_timeout(ihost->eventq, - event != atomic_read(&iport->event) || - !test_bit(IPORT_BCN_BLOCKED, &iport->flags), - tmo); - /* link down, stop polling */ - if (!test_bit(IPORT_BCN_BLOCKED, &iport->flags)) - break; - - dev_dbg(&ihost->pdev->dev, - "%s: iport %p, iteration %d," - " phase %d: time_remaining %lu, bcns = %d\n", - __func__, iport, iteration, phy_state, - tmo, test_bit(IPORT_BCN_PENDING, &iport->flags)); - - res = isci_smp_get_phy_attached_dev_type(ihost, dev, phy_num, - &attached_device_type); - tmo = deadline - jiffies; - - if (res) { - dev_dbg(&ihost->pdev->dev, - "%s: iteration %d, phase %d:" - " SMP error=%d, time_remaining=%lu\n", - __func__, iteration, phy_state, res, tmo); - break; - } - dev_dbg(&ihost->pdev->dev, - "%s: iport %p, iteration %d," - " phase %d: time_remaining %lu, bcns = %d, " - "attdevtype = %x\n", - __func__, iport, iteration, phy_state, - tmo, test_bit(IPORT_BCN_PENDING, &iport->flags), - attached_device_type); - - switch (phy_state) { - case SMP_PHYWAIT_PHYDOWN: - /* Has the device gone away? */ - if (!attached_device_type) - phy_state = SMP_PHYWAIT_PHYUP; - - break; - - case SMP_PHYWAIT_PHYUP: - /* Has the device come back? */ - if (attached_device_type) - phy_state = SMP_PHYWAIT_DONE; - break; - - case SMP_PHYWAIT_DONE: - break; - } - - } - dev_dbg(&ihost->pdev->dev, "%s: done\n", __func__); -} - static int isci_reset_device(struct isci_host *ihost, struct isci_remote_device *idev) { struct sas_phy *phy = sas_find_local_phy(idev->domain_dev); - struct isci_port *iport = idev->isci_port; enum sci_status status; unsigned long flags; int rc; @@ -1570,10 +1354,6 @@ static int isci_reset_device(struct isci_host *ihost, } spin_unlock_irqrestore(&ihost->scic_lock, flags); - /* If this is a device on an expander, disable BCN processing. */ - if (!scsi_is_sas_phy_local(phy)) - set_bit(IPORT_BCN_BLOCKED, &iport->flags); - rc = sas_phy_reset(phy, true); /* Terminate in-progress I/O now. */ @@ -1584,21 +1364,6 @@ static int isci_reset_device(struct isci_host *ihost, status = sci_remote_device_reset_complete(idev); spin_unlock_irqrestore(&ihost->scic_lock, flags); - /* If this is a device on an expander, bring the phy back up. */ - if (!scsi_is_sas_phy_local(phy)) { - /* A phy reset will cause the device to go away then reappear. - * Since libsas will take action on incoming BCNs (eg. remove - * a device going through an SMP phy-control driven reset), - * we need to wait until the phy comes back up before letting - * discovery proceed in libsas. - */ - isci_wait_for_smp_phy_reset(idev, phy->number); - - spin_lock_irqsave(&ihost->scic_lock, flags); - isci_port_bcn_enable(ihost, idev->isci_port); - spin_unlock_irqrestore(&ihost->scic_lock, flags); - } - if (status != SCI_SUCCESS) { dev_dbg(&ihost->pdev->dev, "%s: sci_remote_device_reset_complete(%p) " -- cgit v1.2.3 From 7000f7c71e2457391e3249eac1ae53c91f49a8c0 Mon Sep 17 00:00:00 2001 From: Andrzej Jakowski Date: Thu, 27 Oct 2011 15:05:42 -0700 Subject: [SCSI] isci: overriding max_concurr_spinup oem parameter by max(oem, user) Fixes bug where max_concurr_spinup oem parameter should be overriden by max_concurr_spinup user parameter. Override should happen only when max_concurr_spinup user parameter is specified in command line (greater than 0). Also this fix shortens variables representing max_conxurr_spinup for oem and user parameters. Signed-off-by: Andrzej Jakowski Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/isci/host.c | 23 ++++++++++++++++------- drivers/scsi/isci/init.c | 2 +- drivers/scsi/isci/probe_roms.h | 4 ++-- 3 files changed, 19 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index f07f30fada1b..e7fe9c4c85b8 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -1350,7 +1350,7 @@ static void isci_user_parameters_get(struct sci_user_parameters *u) u->stp_max_occupancy_timeout = stp_max_occ_to; u->ssp_max_occupancy_timeout = ssp_max_occ_to; u->no_outbound_task_timeout = no_outbound_task_to; - u->max_number_concurrent_device_spin_up = max_concurr_spinup; + u->max_concurr_spinup = max_concurr_spinup; } static void sci_controller_initial_state_enter(struct sci_base_state_machine *sm) @@ -1661,7 +1661,7 @@ static void sci_controller_set_default_config_parameters(struct isci_host *ihost ihost->oem_parameters.controller.mode_type = SCIC_PORT_AUTOMATIC_CONFIGURATION_MODE; /* Default to APC mode. */ - ihost->oem_parameters.controller.max_concurrent_dev_spin_up = 1; + ihost->oem_parameters.controller.max_concurr_spin_up = 1; /* Default to no SSC operation. */ ihost->oem_parameters.controller.do_enable_ssc = false; @@ -1787,7 +1787,8 @@ int sci_oem_parameters_validate(struct sci_oem_params *oem) } else return -EINVAL; - if (oem->controller.max_concurrent_dev_spin_up > MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT) + if (oem->controller.max_concurr_spin_up > MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT || + oem->controller.max_concurr_spin_up < 1) return -EINVAL; return 0; @@ -1810,6 +1811,16 @@ static enum sci_status sci_oem_parameters_set(struct isci_host *ihost) return SCI_FAILURE_INVALID_STATE; } +static u8 max_spin_up(struct isci_host *ihost) +{ + if (ihost->user_parameters.max_concurr_spinup) + return min_t(u8, ihost->user_parameters.max_concurr_spinup, + MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT); + else + return min_t(u8, ihost->oem_parameters.controller.max_concurr_spin_up, + MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT); +} + static void power_control_timeout(unsigned long data) { struct sci_timer *tmr = (struct sci_timer *)data; @@ -1839,8 +1850,7 @@ static void power_control_timeout(unsigned long data) if (iphy == NULL) continue; - if (ihost->power_control.phys_granted_power >= - ihost->oem_parameters.controller.max_concurrent_dev_spin_up) + if (ihost->power_control.phys_granted_power >= max_spin_up(ihost)) break; ihost->power_control.requesters[i] = NULL; @@ -1865,8 +1875,7 @@ void sci_controller_power_control_queue_insert(struct isci_host *ihost, { BUG_ON(iphy == NULL); - if (ihost->power_control.phys_granted_power < - ihost->oem_parameters.controller.max_concurrent_dev_spin_up) { + if (ihost->power_control.phys_granted_power < max_spin_up(ihost)) { ihost->power_control.phys_granted_power++; sci_phy_consume_power_handler(iphy); diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 43fe840fbe9c..a97edabcb85a 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -118,7 +118,7 @@ unsigned char phy_gen = 3; module_param(phy_gen, byte, 0); MODULE_PARM_DESC(phy_gen, "PHY generation (1: 1.5Gbps 2: 3.0Gbps 3: 6.0Gbps)"); -unsigned char max_concurr_spinup = 1; +unsigned char max_concurr_spinup; module_param(max_concurr_spinup, byte, 0); MODULE_PARM_DESC(max_concurr_spinup, "Max concurrent device spinup"); diff --git a/drivers/scsi/isci/probe_roms.h b/drivers/scsi/isci/probe_roms.h index dc007e692f4e..2c75248ca326 100644 --- a/drivers/scsi/isci/probe_roms.h +++ b/drivers/scsi/isci/probe_roms.h @@ -112,7 +112,7 @@ struct sci_user_parameters { * This field specifies the maximum number of direct attached devices * that can have power supplied to them simultaneously. */ - u8 max_number_concurrent_device_spin_up; + u8 max_concurr_spinup; /** * This field specifies the number of seconds to allow a phy to consume @@ -219,7 +219,7 @@ struct sci_bios_oem_param_block_hdr { struct sci_oem_params { struct { uint8_t mode_type; - uint8_t max_concurrent_dev_spin_up; + uint8_t max_concurr_spin_up; uint8_t do_enable_ssc; uint8_t reserved; } controller; -- cgit v1.2.3 From 044aceef33bba7a471a3ed47ac60998b2983b18b Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Fri, 28 Oct 2011 11:34:07 -0700 Subject: [SCSI] edd: Treat "XPRS" host bus type the same as "PCI" PCI Express devices will return "XPRS" host bus type during BIOS EDD call. "XPRS" should be treated just like "PCI" so that the proper pci_dev symlink will be created. Scripts such as fcoe_edd.sh will then work correctly. Signed-off-by: Michael Chan Reviewed-by: Matt Domsch Signed-off-by: Yi Zou Signed-off-by: James Bottomley --- drivers/firmware/edd.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/edd.c b/drivers/firmware/edd.c index f1b7f659d3c9..e22957665808 100644 --- a/drivers/firmware/edd.c +++ b/drivers/firmware/edd.c @@ -151,7 +151,8 @@ edd_show_host_bus(struct edd_device *edev, char *buf) p += scnprintf(p, left, "\tbase_address: %x\n", info->params.interface_path.isa.base_address); } else if (!strncmp(info->params.host_bus_type, "PCIX", 4) || - !strncmp(info->params.host_bus_type, "PCI", 3)) { + !strncmp(info->params.host_bus_type, "PCI", 3) || + !strncmp(info->params.host_bus_type, "XPRS", 4)) { p += scnprintf(p, left, "\t%02x:%02x.%d channel: %u\n", info->params.interface_path.pci.bus, @@ -159,7 +160,6 @@ edd_show_host_bus(struct edd_device *edev, char *buf) info->params.interface_path.pci.function, info->params.interface_path.pci.channel); } else if (!strncmp(info->params.host_bus_type, "IBND", 4) || - !strncmp(info->params.host_bus_type, "XPRS", 4) || !strncmp(info->params.host_bus_type, "HTPT", 4)) { p += scnprintf(p, left, "\tTBD: %llx\n", @@ -668,7 +668,7 @@ edd_get_pci_dev(struct edd_device *edev) { struct edd_info *info = edd_dev_get_info(edev); - if (edd_dev_is_type(edev, "PCI")) { + if (edd_dev_is_type(edev, "PCI") || edd_dev_is_type(edev, "XPRS")) { return pci_get_bus_and_slot(info->params.interface_path.pci.bus, PCI_DEVFN(info->params.interface_path.pci.slot, info->params.interface_path.pci. -- cgit v1.2.3 From 14fc315fa30d128760c7edeff56530142576cd2e Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Fri, 28 Oct 2011 11:34:12 -0700 Subject: [SCSI] libfc: fix checking FC_TYPE_BLS Its checked after skb freed, so instead have fh_type cached and then check FC_TYPE_BLS against cached fh_type value. This wrong check was causing double exch locking as reported by Bhanu at https://lists.open-fcoe.org/pipermail/devel/2011-October/011793.html Signed-off-by: Vasu Dev Tested-by: Bhanu Prakash Gollapudi Signed-off-by: Yi Zou Signed-off-by: James Bottomley --- drivers/scsi/libfc/fc_exch.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 7c055fdca45d..81235f36adc1 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -469,6 +469,7 @@ static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp, struct fc_frame_header *fh = fc_frame_header_get(fp); int error; u32 f_ctl; + u8 fh_type = fh->fh_type; ep = fc_seq_exch(sp); WARN_ON((ep->esb_stat & ESB_ST_SEQ_INIT) != ESB_ST_SEQ_INIT); @@ -493,7 +494,7 @@ static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp, */ error = lport->tt.frame_send(lport, fp); - if (fh->fh_type == FC_TYPE_BLS) + if (fh_type == FC_TYPE_BLS) return error; /* -- cgit v1.2.3 From b6e3c84034b93e6acc895711f74730e235dfe9d2 Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Fri, 28 Oct 2011 11:34:17 -0700 Subject: [SCSI] libfc: avoid exchanges collision during lport reset Currently timer delay is large and is using msleep to avoid avoid exchanges collision across lport reset, so instead do this by initializing exches pool indexes during reset also. Signed-off-by: Vasu Dev Tested-by: Bhanu Prakash Gollapudi Signed-off-by: Yi Zou Signed-off-by: James Bottomley --- drivers/scsi/libfc/fc_exch.c | 4 ++++ drivers/scsi/libfc/fc_lport.c | 10 +--------- 2 files changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 81235f36adc1..1b22130035da 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -1793,6 +1793,9 @@ restart: goto restart; } } + pool->next_index = 0; + pool->left = FC_XID_UNKNOWN; + pool->right = FC_XID_UNKNOWN; spin_unlock_bh(&pool->lock); } @@ -2281,6 +2284,7 @@ struct fc_exch_mgr *fc_exch_mgr_alloc(struct fc_lport *lport, goto free_mempool; for_each_possible_cpu(cpu) { pool = per_cpu_ptr(mp->pool, cpu); + pool->next_index = 0; pool->left = FC_XID_UNKNOWN; pool->right = FC_XID_UNKNOWN; spin_lock_init(&pool->lock); diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 628f347404f9..e0fb89133566 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -1030,16 +1030,8 @@ static void fc_lport_enter_reset(struct fc_lport *lport) FCH_EVT_LIPRESET, 0); fc_vports_linkchange(lport); fc_lport_reset_locked(lport); - if (lport->link_up) { - /* - * Wait upto resource allocation time out before - * doing re-login since incomplete FIP exchanged - * from last session may collide with exchanges - * in new session. - */ - msleep(lport->r_a_tov); + if (lport->link_up) fc_lport_enter_flogi(lport); - } } /** -- cgit v1.2.3 From 907c07d45199f954ddcf66c2c9763c87d012cb15 Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Fri, 28 Oct 2011 11:34:23 -0700 Subject: [SCSI] libfc: improve flogi retries to avoid lport stuck Adds more cases to do flogi retry, now also retry on getting bad response due to either no ELS response or flogi response payload length not large enough. In those cases flogi was not retried and that was leaving lport offline. Signed-off-by: Vasu Dev Tested-by: Bhanu Prakash Gollapudi Signed-off-by: Yi Zou Signed-off-by: James Bottomley --- drivers/scsi/fcoe/fcoe.c | 13 +++---- drivers/scsi/libfc/fc_lport.c | 90 +++++++++++++++++++++++-------------------- 2 files changed, 54 insertions(+), 49 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c index 61384ee4049b..cefbe44bb84a 100644 --- a/drivers/scsi/fcoe/fcoe.c +++ b/drivers/scsi/fcoe/fcoe.c @@ -2347,14 +2347,11 @@ static void fcoe_flogi_resp(struct fc_seq *seq, struct fc_frame *fp, void *arg) goto done; mac = fr_cb(fp)->granted_mac; - if (is_zero_ether_addr(mac)) { - /* pre-FIP */ - if (fcoe_ctlr_recv_flogi(fip, lport, fp)) { - fc_frame_free(fp); - return; - } - } - fcoe_update_src_mac(lport, mac); + /* pre-FIP */ + if (is_zero_ether_addr(mac)) + fcoe_ctlr_recv_flogi(fip, lport, fp); + if (!is_zero_ether_addr(mac)) + fcoe_update_src_mac(lport, mac); done: fc_lport_flogi_resp(seq, fp, lport); } diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index e0fb89133566..2cb12b9cd3e8 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -1473,6 +1473,7 @@ void fc_lport_flogi_resp(struct fc_seq *sp, struct fc_frame *fp, void *lp_arg) { struct fc_lport *lport = lp_arg; + struct fc_frame_header *fh; struct fc_els_flogi *flp; u32 did; u16 csp_flags; @@ -1500,49 +1501,56 @@ void fc_lport_flogi_resp(struct fc_seq *sp, struct fc_frame *fp, goto err; } + fh = fc_frame_header_get(fp); did = fc_frame_did(fp); - if (fc_frame_payload_op(fp) == ELS_LS_ACC && did) { - flp = fc_frame_payload_get(fp, sizeof(*flp)); - if (flp) { - mfs = ntohs(flp->fl_csp.sp_bb_data) & - FC_SP_BB_DATA_MASK; - if (mfs >= FC_SP_MIN_MAX_PAYLOAD && - mfs < lport->mfs) - lport->mfs = mfs; - csp_flags = ntohs(flp->fl_csp.sp_features); - r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov); - e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov); - if (csp_flags & FC_SP_FT_EDTR) - e_d_tov /= 1000000; - - lport->npiv_enabled = !!(csp_flags & FC_SP_FT_NPIV_ACC); - - if ((csp_flags & FC_SP_FT_FPORT) == 0) { - if (e_d_tov > lport->e_d_tov) - lport->e_d_tov = e_d_tov; - lport->r_a_tov = 2 * e_d_tov; - fc_lport_set_port_id(lport, did, fp); - printk(KERN_INFO "host%d: libfc: " - "Port (%6.6x) entered " - "point-to-point mode\n", - lport->host->host_no, did); - fc_lport_ptp_setup(lport, fc_frame_sid(fp), - get_unaligned_be64( - &flp->fl_wwpn), - get_unaligned_be64( - &flp->fl_wwnn)); - } else { - lport->e_d_tov = e_d_tov; - lport->r_a_tov = r_a_tov; - fc_host_fabric_name(lport->host) = - get_unaligned_be64(&flp->fl_wwnn); - fc_lport_set_port_id(lport, did, fp); - fc_lport_enter_dns(lport); - } - } - } else { - FC_LPORT_DBG(lport, "FLOGI RJT or bad response\n"); + if (fh->fh_r_ctl != FC_RCTL_ELS_REP || did == 0 || + fc_frame_payload_op(fp) != ELS_LS_ACC) { + FC_LPORT_DBG(lport, "FLOGI not accepted or bad response\n"); fc_lport_error(lport, fp); + goto err; + } + + flp = fc_frame_payload_get(fp, sizeof(*flp)); + if (!flp) { + FC_LPORT_DBG(lport, "FLOGI bad response\n"); + fc_lport_error(lport, fp); + goto err; + } + + mfs = ntohs(flp->fl_csp.sp_bb_data) & + FC_SP_BB_DATA_MASK; + if (mfs >= FC_SP_MIN_MAX_PAYLOAD && + mfs < lport->mfs) + lport->mfs = mfs; + csp_flags = ntohs(flp->fl_csp.sp_features); + r_a_tov = ntohl(flp->fl_csp.sp_r_a_tov); + e_d_tov = ntohl(flp->fl_csp.sp_e_d_tov); + if (csp_flags & FC_SP_FT_EDTR) + e_d_tov /= 1000000; + + lport->npiv_enabled = !!(csp_flags & FC_SP_FT_NPIV_ACC); + + if ((csp_flags & FC_SP_FT_FPORT) == 0) { + if (e_d_tov > lport->e_d_tov) + lport->e_d_tov = e_d_tov; + lport->r_a_tov = 2 * e_d_tov; + fc_lport_set_port_id(lport, did, fp); + printk(KERN_INFO "host%d: libfc: " + "Port (%6.6x) entered " + "point-to-point mode\n", + lport->host->host_no, did); + fc_lport_ptp_setup(lport, fc_frame_sid(fp), + get_unaligned_be64( + &flp->fl_wwpn), + get_unaligned_be64( + &flp->fl_wwnn)); + } else { + lport->e_d_tov = e_d_tov; + lport->r_a_tov = r_a_tov; + fc_host_fabric_name(lport->host) = + get_unaligned_be64(&flp->fl_wwnn); + fc_lport_set_port_id(lport, did, fp); + fc_lport_enter_dns(lport); } out: -- cgit v1.2.3 From 99a700bcc75429ba84a672d04f0b650dcc5b3042 Mon Sep 17 00:00:00 2001 From: "Robin H. Johnson" Date: Mon, 24 Oct 2011 22:30:08 +0000 Subject: [SCSI] mv_sas: OCZ RevoDrive3 & zDrive R4 support In the OCZ RevoDrive3/zDrive R4 series, the "OCZ SuperScale Storage Controller" with "Virtualized Controller Architecture 2.0" really seems to be a Marvell 88SE9485 part, with OCZ firmware/BIOS. Developed and tested on OCZ RevoDrive3 120GB [PCI 1b85:1021] Should work on: - OCZ RevoDrive3 (2x SandForce 2281) - OCZ RevoDrive3 X2 (4x SandForce 2281) - OCZ zDrive R4 CM84 (4x SandForce 2281) - OCZ zDrive R4 CM88 (8x SandForce 2281) - OCZ zDrive R4 RM84 (4x SandForce 2582) - OCZ zDrive R4 RM88 (8x SandForce 2582) All of this because a friend recently bought a OCZ RevoDrive3 and was bitten by the lack of Linux support. Notes from testing: ------------------- - SMART works. - VPD Device Identification is "OCZ-REVODRIVE3" - Thin provisioning/TRIM seems to be implemented as WRITE SAME UNMAP, with deterministic (non-zero) read after TRIM, but I'm not sure if it works 100% in my testing. - Some of the tuning in the firmware seems to ensure much better performance when in a RAID0 setup than using the two devices seperately. I have not tested booting from the SSD, because all of this was developed and tested remotely from the actual hardware. Signed-off-by: Robin H. Johnson Thanks-To: Gordon Pritchard Acked-by: Xiangliang Yu Signed-off-by: James Bottomley --- drivers/scsi/mvsas/mv_init.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index 621b5e072758..6f589195746c 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -732,6 +732,16 @@ static struct pci_device_id __devinitdata mvs_pci_table[] = { .class_mask = 0, .driver_data = chip_9485, }, + { PCI_VDEVICE(OCZ, 0x1021), chip_9485}, /* OCZ RevoDrive3 */ + { PCI_VDEVICE(OCZ, 0x1022), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1040), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1041), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1042), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1043), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1044), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1080), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1083), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ + { PCI_VDEVICE(OCZ, 0x1084), chip_9485}, /* OCZ RevoDrive3/zDriveR4 (exact model unknown) */ { } /* terminate list */ }; -- cgit v1.2.3 From 0ba22bb258341783939ed07bf7e7a9d92f3b0edf Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Tue, 25 Oct 2011 12:09:52 +0200 Subject: Bluetooth: ath3k: Use GFP_KERNEL instead of GFP_ATOMIC We are allowed to sleep here so no need to use GFP_ATOMIC. The caller (ath3k_probe) calls request_firmware() which definitely sleeps. Hence, we should avoid using GFP_ATOMIC. Signed-off-by: David Herrmann Signed-off-by: Gustavo F. Padovan --- drivers/bluetooth/ath3k.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index db7cb8111fbe..106beb194f3c 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -105,7 +105,7 @@ static int ath3k_load_firmware(struct usb_device *udev, pipe = usb_sndctrlpipe(udev, 0); - send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC); + send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); if (!send_buf) { BT_ERR("Can't allocate memory chunk for firmware"); return -ENOMEM; @@ -176,7 +176,7 @@ static int ath3k_load_fwfile(struct usb_device *udev, count = firmware->size; - send_buf = kmalloc(BULK_SIZE, GFP_ATOMIC); + send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); if (!send_buf) { BT_ERR("Can't allocate memory chunk for firmware"); return -ENOMEM; -- cgit v1.2.3 From fc501ad7a10a356819505b1e526079d47fdebc2c Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Wed, 26 Oct 2011 11:13:13 +0200 Subject: Bluetooth: bcm203x: Fix race condition on disconnect When disconnecting a bcm203x device we kill and destroy the usb-urb, however, there might still be a pending work-structure which resubmits the now invalid urb. To avoid this race condition, we simply set a shutdown-flag and synchronously kill the worker first. This also adds a comment to all schedule_work()s, as it is really not clear that they are used as replacement for short timers (which can be seen in the git history). Signed-off-by: David Herrmann Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- drivers/bluetooth/bcm203x.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c index 8b1b643a519b..ec743c2ddf9d 100644 --- a/drivers/bluetooth/bcm203x.c +++ b/drivers/bluetooth/bcm203x.c @@ -24,6 +24,7 @@ #include +#include #include #include #include @@ -65,6 +66,7 @@ struct bcm203x_data { unsigned long state; struct work_struct work; + atomic_t shutdown; struct urb *urb; unsigned char *buffer; @@ -97,6 +99,7 @@ static void bcm203x_complete(struct urb *urb) data->state = BCM203X_SELECT_MEMORY; + /* use workqueue to have a small delay */ schedule_work(&data->work); break; @@ -155,6 +158,9 @@ static void bcm203x_work(struct work_struct *work) struct bcm203x_data *data = container_of(work, struct bcm203x_data, work); + if (atomic_read(&data->shutdown)) + return; + if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0) BT_ERR("Can't submit URB"); } @@ -243,6 +249,7 @@ static int bcm203x_probe(struct usb_interface *intf, const struct usb_device_id usb_set_intfdata(intf, data); + /* use workqueue to have a small delay */ schedule_work(&data->work); return 0; @@ -254,6 +261,9 @@ static void bcm203x_disconnect(struct usb_interface *intf) BT_DBG("intf %p", intf); + atomic_inc(&data->shutdown); + cancel_work_sync(&data->work); + usb_kill_urb(data->urb); usb_set_intfdata(intf, NULL); -- cgit v1.2.3 From b91a4e3e3a16085623d47f03b338d9b74954ac67 Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Tue, 25 Oct 2011 21:13:36 +0200 Subject: Bluetooth: bcm203x: Use GFP_KERNEL in workqueue A workqueue is allowed to sleep so we can safely use GFP_KERNEL instead of GFP_ATOMIC. This is still legacy code when the driver used timer BHs and not a worqueue. Signed-off-by: David Herrmann Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- drivers/bluetooth/bcm203x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/bluetooth/bcm203x.c b/drivers/bluetooth/bcm203x.c index ec743c2ddf9d..54952ab800b8 100644 --- a/drivers/bluetooth/bcm203x.c +++ b/drivers/bluetooth/bcm203x.c @@ -161,7 +161,7 @@ static void bcm203x_work(struct work_struct *work) if (atomic_read(&data->shutdown)) return; - if (usb_submit_urb(data->urb, GFP_ATOMIC) < 0) + if (usb_submit_urb(data->urb, GFP_KERNEL) < 0) BT_ERR("Can't submit URB"); } -- cgit v1.2.3 From 6b441fab28ea1cbbf3da75dcd1e7438e6cba704c Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Wed, 26 Oct 2011 11:22:46 +0200 Subject: Bluetooth: bfusb: Fix error path on firmware load When loading the usb-configuration we do not signal the end of configuration on memory allocation error. This patch moves the memory allocation to the top so every error path uses "goto error" now to correctly send the usb-ctrl message when detecting some error. This also replaces GFP_ATOMIC with GFP_KERNEL as we are allowed to sleep here. Signed-off-by: David Herrmann Acked-by: Marcel Holtmann Signed-off-by: Gustavo F. Padovan --- drivers/bluetooth/bfusb.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c index 005919ab043c..61b591470a90 100644 --- a/drivers/bluetooth/bfusb.c +++ b/drivers/bluetooth/bfusb.c @@ -568,22 +568,23 @@ static int bfusb_load_firmware(struct bfusb_data *data, BT_INFO("BlueFRITZ! USB loading firmware"); + buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_KERNEL); + if (!buf) { + BT_ERR("Can't allocate memory chunk for firmware"); + return -ENOMEM; + } + pipe = usb_sndctrlpipe(data->udev, 0); if (usb_control_msg(data->udev, pipe, USB_REQ_SET_CONFIGURATION, 0, 1, 0, NULL, 0, USB_CTRL_SET_TIMEOUT) < 0) { BT_ERR("Can't change to loading configuration"); + kfree(buf); return -EBUSY; } data->udev->toggle[0] = data->udev->toggle[1] = 0; - buf = kmalloc(BFUSB_MAX_BLOCK_SIZE + 3, GFP_ATOMIC); - if (!buf) { - BT_ERR("Can't allocate memory chunk for firmware"); - return -ENOMEM; - } - pipe = usb_sndbulkpipe(data->udev, data->bulk_out_ep); while (count) { -- cgit v1.2.3 From 2d3def0b73e33e5af2e81094710c07423e00b8be Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 24 Oct 2011 13:43:05 +0200 Subject: stmmac: drop unused Kconfig symbol Signed-off-by: Paul Bolle Acked-by: Giuseppe Cavallaro Signed-off-by: Michal Marek --- drivers/net/stmmac/Kconfig | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/stmmac/Kconfig b/drivers/net/stmmac/Kconfig index 7df7df4e79c5..9e37a9a8d377 100644 --- a/drivers/net/stmmac/Kconfig +++ b/drivers/net/stmmac/Kconfig @@ -20,15 +20,6 @@ config STMMAC_DA By default, the DMA arbitration scheme is based on Round-robin (rx:tx priority is 1:1). -config STMMAC_DUAL_MAC - bool "STMMAC: dual mac support (EXPERIMENTAL)" - default n - depends on EXPERIMENTAL && STMMAC_ETH && !STMMAC_TIMER - help - Some ST SoCs (for example the stx7141 and stx7200c2) have two - Ethernet Controllers. This option turns on the second Ethernet - device on this kind of platforms. - config STMMAC_TIMER bool "STMMAC Timer optimisation" default n -- cgit v1.2.3 From a8d2de5e55183e2ec32228b3464be894cf7533c2 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 24 Oct 2011 13:43:38 +0200 Subject: pci: drop unused Kconfig symbol There's no other Kconfig symbol that depends on XEN_PCIDEV_FE_DEBUG. Neither is there anything that uses CONFIG_XEN_PCIDEV_FE_DEBUG. Signed-off-by: Paul Bolle Reviewed-by: Konrad Rzeszutek Wilk Signed-off-by: Michal Marek --- drivers/pci/Kconfig | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index 0fa466a91bf4..b42798fe44a9 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -51,17 +51,6 @@ config XEN_PCIDEV_FRONTEND The PCI device frontend driver allows the kernel to import arbitrary PCI devices from a PCI backend to support PCI driver domains. -config XEN_PCIDEV_FE_DEBUG - bool "Xen PCI Frontend debugging" - depends on XEN_PCIDEV_FRONTEND && PCI_DEBUG - help - Say Y here if you want the Xen PCI frontend to produce a bunch of debug - messages to the system log. Select this if you are having a - problem with Xen PCI frontend support and want to see more of what is - going on. - - When in doubt, say N. - config HT_IRQ bool "Interrupts on hypertransport devices" default y -- cgit v1.2.3 From 536ec4f8d13433126f948d6e90821f811a4ebdf8 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 24 Oct 2011 13:43:42 +0200 Subject: scsi: drop unused Kconfig symbol Signed-off-by: Paul Bolle Signed-off-by: Michal Marek --- drivers/scsi/Kconfig | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 8d9dae89f065..a757192ed584 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -607,20 +607,6 @@ config SCSI_ARCMSR To compile this driver as a module, choose M here: the module will be called arcmsr (modprobe arcmsr). -config SCSI_ARCMSR_AER - bool "Enable PCI Error Recovery Capability in Areca Driver(ARCMSR)" - depends on SCSI_ARCMSR && PCIEAER - default n - help - The advanced error reporting(AER) capability is "NOT" provided by - ARC1200/1201/1202 SATA RAID controllers cards. - If your card is one of ARC1200/1201/1202, please use the default setting, n. - If your card is other models, you could pick it - on condition that the kernel version is greater than 2.6.19. - This function is maintained driver by Nick Cheng. If you have any - problems or suggestion, you are welcome to contact with . - To enable this function, choose Y here. - source "drivers/scsi/megaraid/Kconfig.megaraid" source "drivers/scsi/mpt2sas/Kconfig" -- cgit v1.2.3 From cc4b859c70e49d6a3e208c930e9eb81bea4481fd Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 1 Jul 2011 14:30:49 -0400 Subject: acpi: add module.h to files implicitly using/relying on it. These files are using standard module API things like MODULE_AUTHOR etc. and so should not be relying on an implicit presence of the module.h header. Signed-off-by: Paul Gortmaker --- drivers/acpi/acpica/hwsleep.c | 1 + drivers/acpi/ec_sys.c | 1 + drivers/acpi/sbshc.c | 1 + 3 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index 2ac28bbe8827..d52da3073650 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -46,6 +46,7 @@ #include "accommon.h" #include "actables.h" #include +#include #define _COMPONENT ACPI_HARDWARE ACPI_MODULE_NAME("hwsleep") diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c index 22f918bacd35..6c47ae9793a7 100644 --- a/drivers/acpi/ec_sys.c +++ b/drivers/acpi/ec_sys.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "internal.h" MODULE_AUTHOR("Thomas Renninger "); diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c index f8be23b6c129..f8d2a472795c 100644 --- a/drivers/acpi/sbshc.c +++ b/drivers/acpi/sbshc.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "sbshc.h" -- cgit v1.2.3 From c0d12cc63aadf2668b3856fb35757d3a66bbab11 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 26 Oct 2011 17:56:09 -0400 Subject: acpi: delete module.h include from files explicitly not needing it Files which aren't actually using infrastructure from module.h shouldn't include it, as it is a big header with lots of child includes spawned off. Signed-off-by: Paul Gortmaker --- drivers/acpi/blacklist.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index af308d03f492..cb9629638def 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -28,7 +28,6 @@ */ #include -#include #include #include #include -- cgit v1.2.3 From 067d75615442454dd24210518f1c862dc6fe54ab Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 26 Oct 2011 17:58:35 -0400 Subject: acpi: downgrade files from module.h to export.h where possible. If a file is only exporting symbols and not using the core modular infrastructure, it can get by with just including the smaller export.h header, which is a lot smaller than the module.h header. Signed-off-by: Paul Gortmaker --- drivers/acpi/atomicio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c index 7489b89c300f..04ae1c88c03c 100644 --- a/drivers/acpi/atomicio.c +++ b/drivers/acpi/atomicio.c @@ -24,7 +24,7 @@ */ #include -#include +#include #include #include #include -- cgit v1.2.3 From 214f2c90b970e098e75cf719c0c5b0f1fe69b716 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Wed, 26 Oct 2011 16:22:14 -0400 Subject: acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL These files were relying on module.h to come in via the path in an include/acpi header file, but we don't want to have instances of module.h being included from include/* files if it can be avoided. Have the files include export.h instead. Signed-off-by: Paul Gortmaker --- drivers/acpi/acpica/evxface.c | 1 + drivers/acpi/acpica/evxfevnt.c | 1 + drivers/acpi/acpica/evxfgpe.c | 1 + drivers/acpi/acpica/evxfregn.c | 1 + drivers/acpi/acpica/hwtimer.c | 1 + drivers/acpi/acpica/hwxface.c | 1 + drivers/acpi/acpica/nsxfeval.c | 1 + drivers/acpi/acpica/nsxfname.c | 1 + drivers/acpi/acpica/nsxfobj.c | 1 + drivers/acpi/acpica/rsxface.c | 1 + drivers/acpi/acpica/tbxface.c | 1 + drivers/acpi/acpica/utdebug.c | 1 + drivers/acpi/acpica/utdecode.c | 1 + drivers/acpi/acpica/utglobal.c | 1 + drivers/acpi/acpica/utxface.c | 1 + drivers/acpi/acpica/utxferror.c | 1 + drivers/acpi/debugfs.c | 1 + drivers/acpi/event.c | 1 + drivers/acpi/glue.c | 1 + drivers/acpi/proc.c | 1 + drivers/acpi/processor_core.c | 1 + drivers/acpi/video_detect.c | 1 + 22 files changed, 22 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index e1141402dbed..f4f523bf5939 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index c57b5c707a77..20516e599476 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "actables.h" diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c index 52aaff3df562..f06a3ee356ba 100644 --- a/drivers/acpi/acpica/evxfgpe.c +++ b/drivers/acpi/acpica/evxfgpe.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acevents.h" diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c index 00cd95692a91..aee887e3ca5c 100644 --- a/drivers/acpi/acpica/evxfregn.c +++ b/drivers/acpi/acpica/evxfregn.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index 9c8eb71a12fb..50d21c40b5c1 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index f75f81ad15c9..c2793a82f120 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index c53f0040e490..e7f016d1b226 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index 3fd4526f3dba..83bf93024303 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c index db7660f8b869..57e6d825ed84 100644 --- a/drivers/acpi/acpica/nsxfobj.c +++ b/drivers/acpi/acpica/nsxfobj.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index 2ff657a28f26..fe86b37b16ce 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acresrc.h" diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c index 4b7085dfc683..e7d13f5d3f2d 100644 --- a/drivers/acpi/acpica/tbxface.c +++ b/drivers/acpi/acpica/tbxface.c @@ -42,6 +42,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index a9bcd816dc29..a1f8d7509e66 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c index 97cb36f85ce9..8b087e2d64f4 100644 --- a/drivers/acpi/acpica/utdecode.c +++ b/drivers/acpi/acpica/utdecode.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 833a38a9c905..ffba0a39c3e8 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -43,6 +43,7 @@ #define DEFINE_ACPI_GLOBALS +#include #include #include "accommon.h" diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 98ad125e14ff..420ebfe08c72 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acevents.h" diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c index 916ae097c43c..8d0245ec4315 100644 --- a/drivers/acpi/acpica/utxferror.c +++ b/drivers/acpi/acpica/utxferror.c @@ -41,6 +41,7 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include "accommon.h" #include "acnamesp.h" diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index 182a9fc36355..b55d6a20dc0e 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -2,6 +2,7 @@ * debugfs.c - ACPI debugfs interface to userspace. */ +#include #include #include #include diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index 85d908993809..1442737cedec 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -7,6 +7,7 @@ */ #include +#include #include #include #include diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 7c47ed55e528..29a4a5c8ee00 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -6,6 +6,7 @@ * * This file is released under the GPLv2. */ +#include #include #include #include diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index f5f986991b52..251c7b6273a9 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -1,5 +1,6 @@ #include #include +#include #include #include #include diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 02d2a4c9084d..3a0428e8435c 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -7,6 +7,7 @@ * Venkatesh Pallipadi * - Added _PDC for platforms with Intel CPUs */ +#include #include #include diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 5af3479714f6..f3f0fe7e255a 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -33,6 +33,7 @@ * */ +#include #include #include #include -- cgit v1.2.3 From 7c52d55170ce84ddf9c0ad4e020ef1d7a97975a7 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 12:33:10 -0400 Subject: x86: fix up files really needing to include module.h These files aren't just exporting symbols -- they are also defining a MODULE_LICENSE etc. so give them the full module.h file. Signed-off-by: Paul Gortmaker --- drivers/dma/intel_mid_dma.c | 1 + drivers/idle/intel_idle.c | 1 + drivers/platform/x86/intel_scu_ipc.c | 1 + drivers/platform/x86/msi-wmi.c | 1 + drivers/platform/x86/wmi.c | 1 + 5 files changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c index 8a3fdd87db97..72d3b9df5845 100644 --- a/drivers/dma/intel_mid_dma.c +++ b/drivers/dma/intel_mid_dma.c @@ -27,6 +27,7 @@ #include #include #include +#include #define MAX_CHAN 4 /*max ch across controllers*/ #include "intel_mid_dma_regs.h" diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index a46dddf61078..18767f8ab090 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -61,6 +61,7 @@ #include #include #include +#include #include #include diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c index c86665369a22..48870e504231 100644 --- a/drivers/platform/x86/intel_scu_ipc.c +++ b/drivers/platform/x86/intel_scu_ipc.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include diff --git a/drivers/platform/x86/msi-wmi.c b/drivers/platform/x86/msi-wmi.c index 6f40bf202dc7..2264331bd48e 100644 --- a/drivers/platform/x86/msi-wmi.c +++ b/drivers/platform/x86/msi-wmi.c @@ -28,6 +28,7 @@ #include #include #include +#include MODULE_AUTHOR("Thomas Renninger "); MODULE_DESCRIPTION("MSI laptop WMI hotkeys driver"); diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index f23d5a84e7b1..c10546c7e17e 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From 66b15db69c2553036cc25f6e2e74fe7e3aa2761e Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 10:46:24 -0400 Subject: powerpc: add export.h to files making use of EXPORT_SYMBOL With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker --- drivers/ps3/sys-manager-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/ps3/sys-manager-core.c b/drivers/ps3/sys-manager-core.c index 474225852b63..0e41737ea835 100644 --- a/drivers/ps3/sys-manager-core.c +++ b/drivers/ps3/sys-manager-core.c @@ -19,6 +19,7 @@ */ #include +#include #include #include -- cgit v1.2.3 From 7dfe293cf66258c5ef5d010f75d1f843b38e5e4a Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 13:23:32 -0400 Subject: powerpc: Fix up modules that should be including module.h So that we can clean up the header files and not be relying on implicit includes from device.h ---> module.h Signed-off-by: Paul Gortmaker --- drivers/ps3/ps3stor_lib.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/ps3/ps3stor_lib.c b/drivers/ps3/ps3stor_lib.c index af0afa1db4a8..cc328dec946b 100644 --- a/drivers/ps3/ps3stor_lib.c +++ b/drivers/ps3/ps3stor_lib.c @@ -19,6 +19,7 @@ */ #include +#include #include #include -- cgit v1.2.3 From 3a4c5d5964ed43a5524f6d289fb4cd37d39f3f1a Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Sat, 30 Jul 2011 09:25:15 +0200 Subject: s390: add missing module.h/export.h includes Fix several compile errors on s390 caused by splitting module.h. Some include additions [e.g. qdio_setup.c, zfcp_qdio.c] are in anticipation of pending changes queued for s390 that increase the modular use footprint. [PG: added additional obvious changes since Heiko's original patch] Signed-off-by: Heiko Carstens Signed-off-by: Paul Gortmaker --- drivers/s390/char/fs3270.c | 1 + drivers/s390/char/sclp_cpi_sys.c | 1 + drivers/s390/char/vmcp.c | 1 + drivers/s390/char/vmur.c | 1 + drivers/s390/cio/chp.c | 2 ++ drivers/s390/cio/qdio_debug.c | 2 ++ drivers/s390/cio/qdio_setup.c | 1 + drivers/s390/kvm/kvm_virtio.c | 1 + drivers/s390/scsi/zfcp_aux.c | 1 + drivers/s390/scsi/zfcp_ccw.c | 1 + drivers/s390/scsi/zfcp_dbf.c | 1 + drivers/s390/scsi/zfcp_qdio.c | 1 + drivers/s390/scsi/zfcp_scsi.c | 1 + 13 files changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index f6489eb7e976..e71298158f9e 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c index 4a51e3f09689..bd1b9c919051 100644 --- a/drivers/s390/char/sclp_cpi_sys.c +++ b/drivers/s390/char/sclp_cpi_sys.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 31a3ccbb6495..75bde6a8b7dc 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index f6b00c3df425..b95cbdccc11a 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c index 2d32233943a9..e792436c9270 100644 --- a/drivers/s390/cio/chp.c +++ b/drivers/s390/cio/chp.c @@ -10,6 +10,8 @@ #include #include #include +#include +#include #include #include #include diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c index aaf7f935bfd3..4fc5e626014d 100644 --- a/drivers/s390/cio/qdio_debug.c +++ b/drivers/s390/cio/qdio_debug.c @@ -7,6 +7,8 @@ */ #include #include +#include +#include #include #include "qdio_debug.h" #include "qdio.h" diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index d9a46a429bcc..2acc01f90a6a 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -8,6 +8,7 @@ */ #include #include +#include #include #include "cio.h" diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c index aec60d55b10d..826ac1e67922 100644 --- a/drivers/s390/kvm/kvm_virtio.c +++ b/drivers/s390/kvm/kvm_virtio.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 645b0fcbb370..086018109662 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "zfcp_ext.h" #include "zfcp_fc.h" #include "zfcp_reqlist.h" diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index e8b7cee62046..96f13ad88123 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include #include "zfcp_ext.h" #include "zfcp_reqlist.h" diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 967e7b70e977..a9a816e4aa55 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include #include #include #include diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c index df9e69f54742..e14da5751d32 100644 --- a/drivers/s390/scsi/zfcp_qdio.c +++ b/drivers/s390/scsi/zfcp_qdio.c @@ -10,6 +10,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include +#include #include "zfcp_ext.h" #include "zfcp_qdio.h" diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 09126a9d62ff..11f07f888223 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -9,6 +9,7 @@ #define KMSG_COMPONENT "zfcp" #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt +#include #include #include #include -- cgit v1.2.3 From a87df54ea3c82369b4b1cb94886449a6bc2e16a2 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 1 Aug 2011 13:12:26 -0400 Subject: parisc: Add export.h to files needing EXPORT_SYMBOL/THIS_MODULE These guys were getting it implicitly via module.h before, when module.h was everywhere. Signed-off-by: Paul Gortmaker --- drivers/parisc/ccio-dma.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/parisc/ccio-dma.c b/drivers/parisc/ccio-dma.c index 75a80e46b391..8b490d77054f 100644 --- a/drivers/parisc/ccio-dma.c +++ b/drivers/parisc/ccio-dma.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include /* for L1_CACHE_BYTES */ -- cgit v1.2.3 From 6caddf0a7476a1595b7ff83aabd510a87d934095 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 11 Aug 2011 13:24:07 -0400 Subject: parisc: add module.h to files really requiring it We want to clean up the implicit everywhere presence of module.h which means files like this that use module infrastructure need to explicitly call it out for inclusion. Signed-off-by: Paul Gortmaker --- drivers/parisc/sba_iommu.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/parisc/sba_iommu.c b/drivers/parisc/sba_iommu.c index a6f762188bc3..8644d5372e7f 100644 --- a/drivers/parisc/sba_iommu.c +++ b/drivers/parisc/sba_iommu.c @@ -39,6 +39,7 @@ #include #include +#include #include #include /* for proc_mckinley_root */ -- cgit v1.2.3 From 0c43871b4036444b8734d06ab9ec0bb9046aada4 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 31 Jul 2011 17:40:26 -0400 Subject: sh: fix implicit use of stat.h in arch/sh specific files To fix: arch/sh/drivers/dma/dma-sysfs.c:45:8: error: 'S_IRUGO' undeclared here (not in a function) arch/sh/drivers/dma/dma-sysfs.c:75:8: error: 'S_IWUSR' undeclared here (not in a function) make[4]: *** [arch/sh/drivers/dma/dma-sysfs.o] Error 1 drivers/sh/intc/core.c:449: error: 'S_IRUGO' undeclared here (not in a function) make[5]: *** [drivers/sh/intc/core.o] Error 1 Signed-off-by: Paul Gortmaker --- drivers/sh/intc/core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c index c6ca115c71df..f8925299d7c0 100644 --- a/drivers/sh/intc/core.c +++ b/drivers/sh/intc/core.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From db4e83957f961f9053282409c5062c6baef857a4 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 31 Jul 2011 19:18:02 -0400 Subject: sh: Add module.h to arch/sh specific files as required. Signed-off-by: Paul Gortmaker --- drivers/sh/intc/dynamic.c | 1 + drivers/sh/maple/maple.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/sh/intc/dynamic.c b/drivers/sh/intc/dynamic.c index a3677c9dfe36..5fea1ee8799a 100644 --- a/drivers/sh/intc/dynamic.c +++ b/drivers/sh/intc/dynamic.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "internals.h" /* only for activate_irq() damage.. */ /* diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c index 1e20604257af..bec81c2404f7 100644 --- a/drivers/sh/maple/maple.c +++ b/drivers/sh/maple/maple.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From f7be345515ab6d5c3a0973bb2b32510fcb7c0481 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 31 Jul 2011 19:20:02 -0400 Subject: sh: Add export.h to arch/sh specific files as required. Signed-off-by: Paul Gortmaker --- drivers/sh/intc/core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c index f8925299d7c0..8b7a141ff35e 100644 --- a/drivers/sh/intc/core.c +++ b/drivers/sh/intc/core.c @@ -30,6 +30,7 @@ #include #include #include +#include #include "internals.h" LIST_HEAD(intc_list); -- cgit v1.2.3 From 9d9779e723a5d23b94abbe5bb7d1197921f6f3dd Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 3 Jul 2011 15:21:01 -0400 Subject: drivers/net: Add module.h to drivers who were implicitly using it The device.h header was including module.h, making it present for most of these drivers. But we want to clean that up. Call out the include of module.h in the modular network drivers. Signed-off-by: Paul Gortmaker --- drivers/net/ethernet/brocade/bna/bnad.c | 1 + drivers/net/ethernet/emulex/benet/be_main.c | 1 + drivers/net/ethernet/ethoc.c | 1 + drivers/net/ethernet/freescale/ucc_geth.c | 1 + drivers/net/ethernet/intel/e1000e/param.c | 1 + drivers/net/ethernet/mellanox/mlx4/catas.c | 1 + drivers/net/ethernet/mellanox/mlx4/fw.c | 1 + drivers/net/ethernet/neterion/vxge/vxge-main.c | 1 + drivers/net/ethernet/octeon/octeon_mgmt.c | 1 + drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 1 + drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c | 1 + drivers/net/ethernet/smsc/smsc9420.c | 1 + drivers/net/ethernet/xscale/ixp4xx_eth.c | 1 + drivers/net/phy/realtek.c | 1 + drivers/net/usb/lg-vl600.c | 1 + drivers/net/veth.c | 1 + drivers/net/vmxnet3/vmxnet3_drv.c | 1 + drivers/net/wimax/i2400m/sdio.c | 1 + drivers/net/wimax/i2400m/usb.c | 1 + drivers/net/wireless/adm8211.c | 1 + drivers/net/wireless/ath/ath5k/pci.c | 1 + drivers/net/wireless/ath/ath6kl/sdio.c | 1 + drivers/net/wireless/ath/ath9k/ahb.c | 1 + drivers/net/wireless/ath/ath9k/hw.c | 1 + drivers/net/wireless/ath/ath9k/init.c | 1 + drivers/net/wireless/ath/ath9k/pci.c | 1 + drivers/net/wireless/ath/carl9170/fw.c | 1 + drivers/net/wireless/b43/pcmcia.c | 1 + drivers/net/wireless/hostap/hostap_ioctl.c | 1 + drivers/net/wireless/iwlwifi/iwl-pci.c | 1 + drivers/net/wireless/iwmc3200wifi/sdio.c | 1 + drivers/net/wireless/libertas_tf/main.c | 1 + drivers/net/wireless/mac80211_hwsim.c | 1 + drivers/net/wireless/orinoco/fw.c | 1 + drivers/net/wireless/p54/main.c | 1 + drivers/net/wireless/p54/p54pci.c | 1 + drivers/net/wireless/p54/p54usb.c | 1 + drivers/net/wireless/rtl818x/rtl8180/dev.c | 1 + drivers/net/wireless/rtl818x/rtl8187/dev.c | 1 + drivers/net/wireless/rtlwifi/base.c | 1 + drivers/net/wireless/rtlwifi/rtl8192c/main.c | 1 + drivers/net/wireless/rtlwifi/rtl8192ce/sw.c | 1 + drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 1 + drivers/net/wireless/rtlwifi/rtl8192de/sw.c | 1 + drivers/net/wireless/rtlwifi/rtl8192se/sw.c | 1 + drivers/net/wireless/zd1211rw/zd_usb.c | 1 + 46 files changed, 46 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index 5d7872ecff52..7f3091e7eb42 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "bnad.h" #include "bna.h" diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index d6a232a300ad..13ae2d71a5fb 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -16,6 +16,7 @@ */ #include +#include #include "be.h" #include "be_cmds.h" #include diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c index bdb348a5ccf6..251b635fe75a 100644 --- a/drivers/net/ethernet/ethoc.c +++ b/drivers/net/ethernet/ethoc.c @@ -22,6 +22,7 @@ #include #include #include +#include #include static int buffer_size = 0x8000; /* 32 KBytes */ diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c index 46d690a92c0b..b5dc0273a1d1 100644 --- a/drivers/net/ethernet/freescale/ucc_geth.c +++ b/drivers/net/ethernet/freescale/ucc_geth.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/net/ethernet/intel/e1000e/param.c b/drivers/net/ethernet/intel/e1000e/param.c index 4dd9b63273f6..20e93b08e7f3 100644 --- a/drivers/net/ethernet/intel/e1000e/param.c +++ b/drivers/net/ethernet/intel/e1000e/param.c @@ -27,6 +27,7 @@ *******************************************************************************/ #include +#include #include #include "e1000.h" diff --git a/drivers/net/ethernet/mellanox/mlx4/catas.c b/drivers/net/ethernet/mellanox/mlx4/catas.c index 32f947154c33..45aea9c3ae2c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/catas.c +++ b/drivers/net/ethernet/mellanox/mlx4/catas.c @@ -32,6 +32,7 @@ */ #include +#include #include "mlx4.h" diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index ed452ddfe342..81db50ecb1d1 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -33,6 +33,7 @@ */ #include +#include #include #include "fw.h" diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c index 671e166b5af1..a83197d757c1 100644 --- a/drivers/net/ethernet/neterion/vxge/vxge-main.c +++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c @@ -55,6 +55,7 @@ #include #include #include +#include #include "vxge-main.h" #include "vxge-reg.h" diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c index bc1d946b7971..212f43b308a3 100644 --- a/drivers/net/ethernet/octeon/octeon_mgmt.c +++ b/drivers/net/ethernet/octeon/octeon_mgmt.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c index b89f3a684aec..48406ca382f1 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c @@ -20,6 +20,7 @@ #include "pch_gbe.h" #include "pch_gbe_api.h" +#include #define DRV_VERSION "1.00" const char pch_driver_version[] = DRV_VERSION; diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c index 5b5d90a47e29..9c075ea2682e 100644 --- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c +++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_param.c @@ -18,6 +18,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. */ +#include /* for __MODULE_STRING */ #include "pch_gbe.h" #define OPTION_UNSET -1 diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c index 4f15680849ff..edb24b0e337b 100644 --- a/drivers/net/ethernet/smsc/smsc9420.c +++ b/drivers/net/ethernet/smsc/smsc9420.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include "smsc9420.h" diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c index ec96d910e9a3..f45c85a84261 100644 --- a/drivers/net/ethernet/xscale/ixp4xx_eth.c +++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index a4eae750a414..f414ffb5b728 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -14,6 +14,7 @@ * */ #include +#include #define RTL821x_PHYSR 0x11 #define RTL821x_PHYSR_DUPLEX 0x2000 diff --git a/drivers/net/usb/lg-vl600.c b/drivers/net/usb/lg-vl600.c index 1e7221951056..d43db32f9478 100644 --- a/drivers/net/usb/lg-vl600.c +++ b/drivers/net/usb/lg-vl600.c @@ -27,6 +27,7 @@ #include #include #include +#include /* * The device has a CDC ACM port for modem control (it claims to be diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 5b23767ea817..ef883e97cee0 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -17,6 +17,7 @@ #include #include #include +#include #define DRV_NAME "veth" #define DRV_VERSION "1.0" diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index b771ebac0f01..d96bfb1ac20b 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -24,6 +24,7 @@ * */ +#include #include #include "vmxnet3_int.h" diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index be428cae28d8..21a9edd6e75d 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -55,6 +55,7 @@ #include #include "i2400m-sdio.h" #include +#include #define D_SUBMODULE main #include "sdio-debug-levels.h" diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index 9a644d052f1e..2c1b8b687646 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -67,6 +67,7 @@ #include #include #include +#include #define D_SUBMODULE usb diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c index 3b752d9fb3cd..f5ce5623da99 100644 --- a/drivers/net/wireless/adm8211.c +++ b/drivers/net/wireless/adm8211.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include "adm8211.h" diff --git a/drivers/net/wireless/ath/ath5k/pci.c b/drivers/net/wireless/ath/ath5k/pci.c index c1dff2ced044..dfa48eb7d953 100644 --- a/drivers/net/wireless/ath/ath5k/pci.c +++ b/drivers/net/wireless/ath/ath5k/pci.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "../ath.h" #include "ath5k.h" #include "debug.h" diff --git a/drivers/net/wireless/ath/ath6kl/sdio.c b/drivers/net/wireless/ath/ath6kl/sdio.c index f1dc311ee0c7..066d4f88807f 100644 --- a/drivers/net/wireless/ath/ath6kl/sdio.c +++ b/drivers/net/wireless/ath/ath6kl/sdio.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include #include #include diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c index 85a54cd2b083..5e47ca6d16a8 100644 --- a/drivers/net/wireless/ath/ath9k/ahb.c +++ b/drivers/net/wireless/ath/ath9k/ahb.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "ath9k.h" static const struct platform_device_id ath9k_platform_id_table[] = { diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index f16d2033081f..4952ad8c4e8c 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -16,6 +16,7 @@ #include #include +#include #include #include "hw.h" diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index af1b32549531..d4c909f8e474 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "ath9k.h" diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index edb0b4b3da3a..2dcdf63cb390 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -18,6 +18,7 @@ #include #include #include +#include #include "ath9k.h" static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = { diff --git a/drivers/net/wireless/ath/carl9170/fw.c b/drivers/net/wireless/ath/carl9170/fw.c index f4cae1cccbff..cba9d0435dc4 100644 --- a/drivers/net/wireless/ath/carl9170/fw.c +++ b/drivers/net/wireless/ath/carl9170/fw.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "carl9170.h" #include "fwcmd.h" #include "version.h" diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c index 12b6b4067a39..714cad649c45 100644 --- a/drivers/net/wireless/b43/pcmcia.c +++ b/drivers/net/wireless/b43/pcmcia.c @@ -25,6 +25,7 @@ #include #include +#include #include #include diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c index 12de46407c71..045a93645a3d 100644 --- a/drivers/net/wireless/hostap/hostap_ioctl.c +++ b/drivers/net/wireless/hostap/hostap_ioctl.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include "hostap_wlan.h" diff --git a/drivers/net/wireless/iwlwifi/iwl-pci.c b/drivers/net/wireless/iwlwifi/iwl-pci.c index 3b6cc66365e5..f0c623ade3ff 100644 --- a/drivers/net/wireless/iwlwifi/iwl-pci.c +++ b/drivers/net/wireless/iwlwifi/iwl-pci.c @@ -60,6 +60,7 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ +#include #include #include diff --git a/drivers/net/wireless/iwmc3200wifi/sdio.c b/drivers/net/wireless/iwmc3200wifi/sdio.c index 56383e7be835..764b40dd24ad 100644 --- a/drivers/net/wireless/iwmc3200wifi/sdio.c +++ b/drivers/net/wireless/iwmc3200wifi/sdio.c @@ -63,6 +63,7 @@ */ #include +#include #include #include #include diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c index acc461aa385e..ceb51b6e6702 100644 --- a/drivers/net/wireless/libertas_tf/main.c +++ b/drivers/net/wireless/libertas_tf/main.c @@ -13,6 +13,7 @@ #include #include +#include #include "libertas_tf.h" #define DRIVER_RELEASE_VERSION "004.p0" diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 68455a2307cb..523ad55a2885 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include "mac80211_hwsim.h" diff --git a/drivers/net/wireless/orinoco/fw.c b/drivers/net/wireless/orinoco/fw.c index 527cf5333db5..4df8cf64b56c 100644 --- a/drivers/net/wireless/orinoco/fw.c +++ b/drivers/net/wireless/orinoco/fw.c @@ -6,6 +6,7 @@ #include #include #include +#include #include "hermes.h" #include "hermes_dld.h" diff --git a/drivers/net/wireless/p54/main.c b/drivers/net/wireless/p54/main.c index ad9ae04d07aa..db4d9a02f264 100644 --- a/drivers/net/wireless/p54/main.c +++ b/drivers/net/wireless/p54/main.c @@ -20,6 +20,7 @@ #include #include #include +#include #include diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c index 1b753173680f..b1f51a215792 100644 --- a/drivers/net/wireless/p54/p54pci.c +++ b/drivers/net/wireless/p54/p54pci.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include "p54.h" diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c index a8f3bc740dfa..9b6096866427 100644 --- a/drivers/net/wireless/p54/p54usb.c +++ b/drivers/net/wireless/p54/p54usb.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include "p54.h" diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index 0082015ff664..2f14a5fb0cbb 100644 --- a/drivers/net/wireless/rtl818x/rtl8180/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include "rtl8180.h" diff --git a/drivers/net/wireless/rtl818x/rtl8187/dev.c b/drivers/net/wireless/rtl818x/rtl8187/dev.c index 24873b55b55c..4a78f9e39dfa 100644 --- a/drivers/net/wireless/rtl818x/rtl8187/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8187/dev.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include "rtl8187.h" diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index d4fdd2a5a739..b4ce93436d2e 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -30,6 +30,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include "wifi.h" #include "rc.h" #include "base.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/main.c b/drivers/net/wireless/rtlwifi/rtl8192c/main.c index 2f624fc27499..605ff191aeb7 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/main.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/main.c @@ -27,6 +27,7 @@ * *****************************************************************************/ +#include #include "../wifi.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c index a48404cc2b96..f2aa33dc4d78 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c @@ -28,6 +28,7 @@ *****************************************************************************/ #include +#include #include "../wifi.h" #include "../core.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c index feed1ed8d9b6..c244f2f1b83f 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -42,6 +42,7 @@ #include "led.h" #include "hw.h" #include +#include MODULE_AUTHOR("Georgia "); MODULE_AUTHOR("Ziv Huang "); diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c index 691f80092185..149493f4c25c 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c @@ -30,6 +30,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include "../wifi.h" #include "../core.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c index 3ec9a0d41baf..92f49d522c56 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192se/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192se/sw.c @@ -30,6 +30,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include "../wifi.h" #include "../core.h" diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index cf0d69dd7be5..785bdbe38f2a 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From ee40fa0656a730491765545ff7550f3c1ceb0fbc Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 16:14:23 -0400 Subject: drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULE These were getting the macros from an implicit module.h include via device.h, but we are planning to clean that up. Signed-off-by: Paul Gortmaker drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c This relatively recently added file uses EXPORT_SYMBOL and hence needs export.h included so that it is compatible with the module.h split up work. Signed-off-by: Paul Gortmaker --- drivers/net/bonding/bond_procfs.c | 1 + drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c | 1 + drivers/net/ethernet/chelsio/cxgb3/l2t.c | 1 + drivers/net/ethernet/chelsio/cxgb4/sge.c | 1 + drivers/net/ethernet/mellanox/mlx4/alloc.c | 1 + drivers/net/ethernet/mellanox/mlx4/cmd.c | 1 + drivers/net/ethernet/mellanox/mlx4/cq.c | 1 + drivers/net/ethernet/mellanox/mlx4/eq.c | 1 + drivers/net/ethernet/mellanox/mlx4/intf.c | 1 + drivers/net/ethernet/mellanox/mlx4/mcg.c | 1 + drivers/net/ethernet/mellanox/mlx4/mr.c | 1 + drivers/net/ethernet/mellanox/mlx4/pd.c | 1 + drivers/net/ethernet/mellanox/mlx4/port.c | 1 + drivers/net/ethernet/mellanox/mlx4/qp.c | 1 + drivers/net/ethernet/mellanox/mlx4/srq.c | 1 + drivers/net/wimax/i2400m/control.c | 1 + drivers/net/wimax/i2400m/debugfs.c | 1 + drivers/net/wimax/i2400m/fw.c | 1 + drivers/net/wimax/i2400m/netdev.c | 1 + drivers/net/wimax/i2400m/rx.c | 1 + drivers/net/wimax/i2400m/tx.c | 1 + drivers/net/wireless/ath/ath5k/debug.c | 1 + drivers/net/wireless/ath/ath6kl/debug.c | 1 + drivers/net/wireless/ath/ath9k/ani.c | 1 + drivers/net/wireless/ath/ath9k/ar9002_mac.c | 1 + drivers/net/wireless/ath/ath9k/ar9003_mac.c | 1 + drivers/net/wireless/ath/ath9k/ar9003_paprd.c | 1 + drivers/net/wireless/ath/ath9k/ar9003_phy.c | 1 + drivers/net/wireless/ath/ath9k/btcoex.c | 1 + drivers/net/wireless/ath/ath9k/calib.c | 1 + drivers/net/wireless/ath/ath9k/debug.c | 1 + drivers/net/wireless/ath/ath9k/mac.c | 1 + drivers/net/wireless/ath/ath9k/rc.c | 1 + drivers/net/wireless/ath/debug.c | 1 + drivers/net/wireless/ath/hw.c | 1 + drivers/net/wireless/ath/key.c | 1 + drivers/net/wireless/ath/regd.c | 1 + drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 1 + drivers/net/wireless/hostap/hostap_80211_rx.c | 1 + drivers/net/wireless/hostap/hostap_80211_tx.c | 1 + drivers/net/wireless/hostap/hostap_ap.c | 1 + drivers/net/wireless/hostap/hostap_info.c | 1 + drivers/net/wireless/hostap/hostap_proc.c | 1 + drivers/net/wireless/iwlegacy/iwl-debugfs.c | 1 + drivers/net/wireless/iwlegacy/iwl-rx.c | 1 + drivers/net/wireless/iwlegacy/iwl-scan.c | 1 + drivers/net/wireless/iwlegacy/iwl-sta.c | 1 + drivers/net/wireless/iwlegacy/iwl-tx.c | 1 + drivers/net/wireless/iwmc3200wifi/debugfs.c | 1 + drivers/net/wireless/libertas/cmd.c | 1 + drivers/net/wireless/libertas/debugfs.c | 1 + drivers/net/wireless/libertas/rx.c | 1 + drivers/net/wireless/libertas/tx.c | 1 + drivers/net/wireless/libertas_tf/cmd.c | 1 + drivers/net/wireless/p54/eeprom.c | 1 + drivers/net/wireless/p54/fwio.c | 1 + drivers/net/wireless/p54/txrx.c | 1 + drivers/net/wireless/rtlwifi/cam.c | 1 + drivers/net/wireless/rtlwifi/efuse.c | 1 + drivers/net/wireless/rtlwifi/pci.c | 1 + drivers/net/wireless/rtlwifi/ps.c | 1 + drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 1 + drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c | 1 + drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c | 1 + drivers/net/wireless/rtlwifi/usb.c | 1 + drivers/net/wireless/wl12xx/boot.c | 1 + 66 files changed, 66 insertions(+) (limited to 'drivers') diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c index 95de93b90386..e1cce1ca387a 100644 --- a/drivers/net/bonding/bond_procfs.c +++ b/drivers/net/bonding/bond_procfs.c @@ -1,4 +1,5 @@ #include +#include #include #include #include "bonding.h" diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c index da5a5d9b8aff..90ff1318cc05 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c +++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c @@ -40,6 +40,7 @@ #include #include #include +#include #include "common.h" #include "regs.h" diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.c b/drivers/net/ethernet/chelsio/cxgb3/l2t.c index 41540978a173..70fec8b1140f 100644 --- a/drivers/net/ethernet/chelsio/cxgb3/l2t.c +++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include "common.h" #include "t3cdev.h" diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c index ddc16985d0f6..140254c7cba9 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/sge.c +++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c @@ -40,6 +40,7 @@ #include #include #include +#include #include #include #include "cxgb4.h" diff --git a/drivers/net/ethernet/mellanox/mlx4/alloc.c b/drivers/net/ethernet/mellanox/mlx4/alloc.c index 116cae334dad..8be20e7ea3d1 100644 --- a/drivers/net/ethernet/mellanox/mlx4/alloc.c +++ b/drivers/net/ethernet/mellanox/mlx4/alloc.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index 23cee7b6af91..78f5a1a0b8c8 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -34,6 +34,7 @@ #include #include +#include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/cq.c b/drivers/net/ethernet/mellanox/mlx4/cq.c index bd8ef9f2fa71..499a5168892a 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/cq.c @@ -35,6 +35,7 @@ */ #include +#include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 1ad1f6029af8..58f39e2974c4 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -33,6 +33,7 @@ #include #include +#include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/intf.c b/drivers/net/ethernet/mellanox/mlx4/intf.c index 73c94fcdfddf..ca6feb55bd94 100644 --- a/drivers/net/ethernet/mellanox/mlx4/intf.c +++ b/drivers/net/ethernet/mellanox/mlx4/intf.c @@ -32,6 +32,7 @@ */ #include +#include #include "mlx4.h" diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c index cd1784593a3c..978688c31046 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mcg.c +++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c @@ -35,6 +35,7 @@ #include #include +#include #include "mlx4.h" diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c index 9c188bdd7f4f..877468298333 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mr.c +++ b/drivers/net/ethernet/mellanox/mlx4/mr.c @@ -33,6 +33,7 @@ */ #include +#include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/pd.c b/drivers/net/ethernet/mellanox/mlx4/pd.c index 1286b886dcea..0f515928477f 100644 --- a/drivers/net/ethernet/mellanox/mlx4/pd.c +++ b/drivers/net/ethernet/mellanox/mlx4/pd.c @@ -32,6 +32,7 @@ */ #include +#include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 163a314c148f..b7c4c083dffc 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -32,6 +32,7 @@ #include #include +#include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c index ec9350e5f21a..7b6cc80d6cd3 100644 --- a/drivers/net/ethernet/mellanox/mlx4/qp.c +++ b/drivers/net/ethernet/mellanox/mlx4/qp.c @@ -34,6 +34,7 @@ */ #include +#include #include #include diff --git a/drivers/net/ethernet/mellanox/mlx4/srq.c b/drivers/net/ethernet/mellanox/mlx4/srq.c index 3b07b80a0456..f1a3adc164d6 100644 --- a/drivers/net/ethernet/mellanox/mlx4/srq.c +++ b/drivers/net/ethernet/mellanox/mlx4/srq.c @@ -32,6 +32,7 @@ */ #include +#include #include #include "mlx4.h" diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index 727d728649b7..ec4147a02017 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -78,6 +78,7 @@ #include #include #include +#include #define D_SUBMODULE control diff --git a/drivers/net/wimax/i2400m/debugfs.c b/drivers/net/wimax/i2400m/debugfs.c index 9c70b5fa3f51..129ba36bd04d 100644 --- a/drivers/net/wimax/i2400m/debugfs.c +++ b/drivers/net/wimax/i2400m/debugfs.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "i2400m.h" diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 85dadd5bf4be..7cbd7d231e11 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -158,6 +158,7 @@ #include #include #include +#include #include "i2400m.h" diff --git a/drivers/net/wimax/i2400m/netdev.c b/drivers/net/wimax/i2400m/netdev.c index 2edd8fe1c1f3..64a110604ad3 100644 --- a/drivers/net/wimax/i2400m/netdev.c +++ b/drivers/net/wimax/i2400m/netdev.c @@ -76,6 +76,7 @@ #include #include #include +#include #include "i2400m.h" diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c index 2f94a872101f..9ed741b6a36f 100644 --- a/drivers/net/wimax/i2400m/rx.c +++ b/drivers/net/wimax/i2400m/rx.c @@ -149,6 +149,7 @@ #include #include #include +#include #include "i2400m.h" diff --git a/drivers/net/wimax/i2400m/tx.c b/drivers/net/wimax/i2400m/tx.c index 4b30ed11d785..4b9ecb20deec 100644 --- a/drivers/net/wimax/i2400m/tx.c +++ b/drivers/net/wimax/i2400m/tx.c @@ -245,6 +245,7 @@ */ #include #include +#include #include "i2400m.h" diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c index fce8c904eea9..a8a72b32328e 100644 --- a/drivers/net/wireless/ath/ath5k/debug.c +++ b/drivers/net/wireless/ath/ath5k/debug.c @@ -57,6 +57,7 @@ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGES. */ +#include #include #include diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c index ba3f23d71150..7879b5314285 100644 --- a/drivers/net/wireless/ath/ath6kl/debug.c +++ b/drivers/net/wireless/ath/ath6kl/debug.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "debug.h" #include "target.h" diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c index 2776c3c1f506..a639b94f7643 100644 --- a/drivers/net/wireless/ath/ath9k/ani.c +++ b/drivers/net/wireless/ath/ath9k/ani.c @@ -15,6 +15,7 @@ */ #include +#include #include "hw.h" #include "hw-ops.h" diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c index f7d8e516a2a9..b5920168606d 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c @@ -15,6 +15,7 @@ */ #include "hw.h" +#include #define AR_BufLen 0x00000fff diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c index b363cc06cfd9..ccde784a842f 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c @@ -13,6 +13,7 @@ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include "hw.h" #include "ar9003_mac.h" diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 0c462c904cbe..a4450cba0653 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include "hw.h" #include "ar9003_phy.h" diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index fe96997921d3..2330e7ede199 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include "hw.h" #include "ar9003_phy.h" diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c index 6635c377dc00..012263968d64 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.c +++ b/drivers/net/wireless/ath/ath9k/btcoex.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include "hw.h" enum ath_bt_mode { diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c index ebaf304f464b..99538810a312 100644 --- a/drivers/net/wireless/ath/ath9k/calib.c +++ b/drivers/net/wireless/ath/ath9k/calib.c @@ -16,6 +16,7 @@ #include "hw.h" #include "hw-ops.h" +#include /* Common calibration code */ diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index 327aa28f6030..2741203e803f 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -16,6 +16,7 @@ #include #include +#include #include #include "ath9k.h" diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 6a8fdf33a527..ecdb6fd29079 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -16,6 +16,7 @@ #include "hw.h" #include "hw-ops.h" +#include static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah, struct ath9k_tx_queue_info *qi) diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 8448281dd069..888abc2be3a5 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -16,6 +16,7 @@ */ #include +#include #include "ath9k.h" diff --git a/drivers/net/wireless/ath/debug.c b/drivers/net/wireless/ath/debug.c index 5367b1086e09..508eccf5d982 100644 --- a/drivers/net/wireless/ath/debug.c +++ b/drivers/net/wireless/ath/debug.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include "ath.h" const char *ath_opmode_to_string(enum nl80211_iftype opmode) diff --git a/drivers/net/wireless/ath/hw.c b/drivers/net/wireless/ath/hw.c index 3f508e59f146..19befb331073 100644 --- a/drivers/net/wireless/ath/hw.c +++ b/drivers/net/wireless/ath/hw.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include #include "ath.h" diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c index 17b0efd86f9a..4cf7c5eb4813 100644 --- a/drivers/net/wireless/ath/key.c +++ b/drivers/net/wireless/ath/key.c @@ -15,6 +15,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include #include diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c index 028310f263c8..85fa9cc73502 100644 --- a/drivers/net/wireless/ath/regd.c +++ b/drivers/net/wireless/ath/regd.c @@ -15,6 +15,7 @@ */ #include +#include #include #include #include "regd.h" diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c index bff9dcd6fadc..89ff94da556a 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c @@ -17,6 +17,7 @@ #include #include +#include #include #include #include diff --git a/drivers/net/wireless/hostap/hostap_80211_rx.c b/drivers/net/wireless/hostap/hostap_80211_rx.c index e0b3e8d406b3..df7050abe717 100644 --- a/drivers/net/wireless/hostap/hostap_80211_rx.c +++ b/drivers/net/wireless/hostap/hostap_80211_rx.c @@ -1,5 +1,6 @@ #include #include +#include #include #include diff --git a/drivers/net/wireless/hostap/hostap_80211_tx.c b/drivers/net/wireless/hostap/hostap_80211_tx.c index c34a3b7f1292..344a981a052e 100644 --- a/drivers/net/wireless/hostap/hostap_80211_tx.c +++ b/drivers/net/wireless/hostap/hostap_80211_tx.c @@ -1,4 +1,5 @@ #include +#include #include "hostap_80211.h" #include "hostap_common.h" diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c index 3d05dc15c6b8..f5f9c8c6edd1 100644 --- a/drivers/net/wireless/hostap/hostap_ap.c +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -21,6 +21,7 @@ #include #include #include +#include #include "hostap_wlan.h" #include "hostap.h" diff --git a/drivers/net/wireless/hostap/hostap_info.c b/drivers/net/wireless/hostap/hostap_info.c index d737091cf6ac..47932b28aac1 100644 --- a/drivers/net/wireless/hostap/hostap_info.c +++ b/drivers/net/wireless/hostap/hostap_info.c @@ -3,6 +3,7 @@ #include #include #include +#include #include "hostap_wlan.h" #include "hostap.h" #include "hostap_ap.h" diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c index 005ff25a405f..75ef8f04aabe 100644 --- a/drivers/net/wireless/hostap/hostap_proc.c +++ b/drivers/net/wireless/hostap/hostap_proc.c @@ -2,6 +2,7 @@ #include #include +#include #include #include "hostap_wlan.h" diff --git a/drivers/net/wireless/iwlegacy/iwl-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c index 996996a71657..1407dca70def 100644 --- a/drivers/net/wireless/iwlegacy/iwl-debugfs.c +++ b/drivers/net/wireless/iwlegacy/iwl-debugfs.c @@ -26,6 +26,7 @@ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 *****************************************************************************/ #include +#include #include diff --git a/drivers/net/wireless/iwlegacy/iwl-rx.c b/drivers/net/wireless/iwlegacy/iwl-rx.c index 9b5d0abe8be9..f4d21ec22497 100644 --- a/drivers/net/wireless/iwlegacy/iwl-rx.c +++ b/drivers/net/wireless/iwlegacy/iwl-rx.c @@ -29,6 +29,7 @@ #include #include +#include #include #include #include "iwl-eeprom.h" diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c index a6b5222fc59e..521b73b527d3 100644 --- a/drivers/net/wireless/iwlegacy/iwl-scan.c +++ b/drivers/net/wireless/iwlegacy/iwl-scan.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include "iwl-eeprom.h" diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.c b/drivers/net/wireless/iwlegacy/iwl-sta.c index 66f0fb2bbe00..f10df3e2813a 100644 --- a/drivers/net/wireless/iwlegacy/iwl-sta.c +++ b/drivers/net/wireless/iwlegacy/iwl-sta.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "iwl-dev.h" #include "iwl-core.h" diff --git a/drivers/net/wireless/iwlegacy/iwl-tx.c b/drivers/net/wireless/iwlegacy/iwl-tx.c index ef9e268bf8a0..c0dfb1a4e968 100644 --- a/drivers/net/wireless/iwlegacy/iwl-tx.c +++ b/drivers/net/wireless/iwlegacy/iwl-tx.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include "iwl-eeprom.h" #include "iwl-dev.h" diff --git a/drivers/net/wireless/iwmc3200wifi/debugfs.c b/drivers/net/wireless/iwmc3200wifi/debugfs.c index 0a0cc9667cd6..87eef5773a02 100644 --- a/drivers/net/wireless/iwmc3200wifi/debugfs.c +++ b/drivers/net/wireless/iwmc3200wifi/debugfs.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "iwm.h" #include "bus.h" diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index e08ab1de3d9d..d798bcc0d83a 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "decl.h" #include "cfg.h" diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c index 1af182778844..d8d8f0d0899f 100644 --- a/drivers/net/wireless/libertas/debugfs.c +++ b/drivers/net/wireless/libertas/debugfs.c @@ -5,6 +5,7 @@ #include #include #include +#include #include "decl.h" #include "cmd.h" diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c index 62e10eeadd7e..c7366b07b568 100644 --- a/drivers/net/wireless/libertas/rx.c +++ b/drivers/net/wireless/libertas/rx.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include "defs.h" diff --git a/drivers/net/wireless/libertas/tx.c b/drivers/net/wireless/libertas/tx.c index 8f127520d786..c025f9c18282 100644 --- a/drivers/net/wireless/libertas/tx.c +++ b/drivers/net/wireless/libertas/tx.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include "host.h" diff --git a/drivers/net/wireless/libertas_tf/cmd.c b/drivers/net/wireless/libertas_tf/cmd.c index 13557fe0bf95..909ac3685010 100644 --- a/drivers/net/wireless/libertas_tf/cmd.c +++ b/drivers/net/wireless/libertas_tf/cmd.c @@ -11,6 +11,7 @@ #include #include +#include #include "libertas_tf.h" diff --git a/drivers/net/wireless/p54/eeprom.c b/drivers/net/wireless/p54/eeprom.c index 8b6f363b3f7d..fa8ce5104781 100644 --- a/drivers/net/wireless/p54/eeprom.c +++ b/drivers/net/wireless/p54/eeprom.c @@ -24,6 +24,7 @@ #include #include +#include #include "p54.h" #include "eeprom.h" diff --git a/drivers/net/wireless/p54/fwio.c b/drivers/net/wireless/p54/fwio.c index 53a3408931be..18e82b31afa6 100644 --- a/drivers/net/wireless/p54/fwio.c +++ b/drivers/net/wireless/p54/fwio.c @@ -20,6 +20,7 @@ #include #include #include +#include #include diff --git a/drivers/net/wireless/p54/txrx.c b/drivers/net/wireless/p54/txrx.c index f485784a60ae..6ed9c323e3cb 100644 --- a/drivers/net/wireless/p54/txrx.c +++ b/drivers/net/wireless/p54/txrx.c @@ -16,6 +16,7 @@ * published by the Free Software Foundation. */ +#include #include #include #include diff --git a/drivers/net/wireless/rtlwifi/cam.c b/drivers/net/wireless/rtlwifi/cam.c index 7babb6acd957..dc36d7461caa 100644 --- a/drivers/net/wireless/rtlwifi/cam.c +++ b/drivers/net/wireless/rtlwifi/cam.c @@ -29,6 +29,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include #include "wifi.h" #include "cam.h" diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c index 3fc21f60bb04..ed1058b71587 100644 --- a/drivers/net/wireless/rtlwifi/efuse.c +++ b/drivers/net/wireless/rtlwifi/efuse.c @@ -27,6 +27,7 @@ * *****************************************************************************/ +#include #include "wifi.h" #include "efuse.h" diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c index 177a8e669241..eb61061821e4 100644 --- a/drivers/net/wireless/rtlwifi/pci.c +++ b/drivers/net/wireless/rtlwifi/pci.c @@ -27,6 +27,7 @@ * *****************************************************************************/ +#include #include "core.h" #include "wifi.h" #include "pci.h" diff --git a/drivers/net/wireless/rtlwifi/ps.c b/drivers/net/wireless/rtlwifi/ps.c index a693feffbe72..db5262844543 100644 --- a/drivers/net/wireless/rtlwifi/ps.c +++ b/drivers/net/wireless/rtlwifi/ps.c @@ -27,6 +27,7 @@ * *****************************************************************************/ +#include #include "wifi.h" #include "base.h" #include "ps.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c index a00774e7090d..72a98cab6f69 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c @@ -27,6 +27,7 @@ * *****************************************************************************/ +#include #include "dm_common.h" #include "phy_common.h" #include "../pci.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c index 49a064bdbce6..950c65a15b8a 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c @@ -30,6 +30,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include "../wifi.h" #include "../pci.h" #include "../base.h" diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c index 3b11642d3f7d..1f07558debf2 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c +++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c @@ -27,6 +27,7 @@ * *****************************************************************************/ +#include #include "../wifi.h" #include "../rtl8192ce/reg.h" #include "../rtl8192ce/def.h" diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c index b42c2e2b2055..54cb8a60514d 100644 --- a/drivers/net/wireless/rtlwifi/usb.c +++ b/drivers/net/wireless/rtlwifi/usb.c @@ -28,6 +28,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include #include "core.h" #include "wifi.h" #include "usb.h" diff --git a/drivers/net/wireless/wl12xx/boot.c b/drivers/net/wireless/wl12xx/boot.c index d4e628db76b0..681337914976 100644 --- a/drivers/net/wireless/wl12xx/boot.c +++ b/drivers/net/wireless/wl12xx/boot.c @@ -23,6 +23,7 @@ #include #include +#include #include "acx.h" #include "reg.h" -- cgit v1.2.3 From ac5c24e9e613df556f054f1fa811fca0c24fe500 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Tue, 30 Aug 2011 14:18:44 -0400 Subject: drivers/net: change moduleparam.h to module.h as required. Signed-off-by: Paul Gortmaker --- drivers/net/wireless/b43/main.c | 2 +- drivers/net/wireless/b43legacy/main.c | 2 +- drivers/net/wireless/libertas/if_sdio.c | 2 +- drivers/net/wireless/libertas/if_spi.c | 2 +- drivers/net/wireless/libertas/if_usb.c | 2 +- drivers/net/wireless/libertas/main.c | 2 +- drivers/net/wireless/libertas_tf/if_usb.c | 2 +- 7 files changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index 7cf4125a1624..5634d9a9965b 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -34,7 +34,7 @@ #include #include -#include +#include #include #include #include diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index a3b72cd72c66..20f02437af8c 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -31,7 +31,7 @@ #include #include -#include +#include #include #include #include diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index c962e21762dc..9804ebc892d4 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -29,7 +29,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include -#include +#include #include #include #include diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index 622ae6de0d8b..11b69b300dc0 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -21,7 +21,7 @@ #include #include -#include +#include #include #include #include diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c index 8147f1e2a0b0..db879c364ebf 100644 --- a/drivers/net/wireless/libertas/if_usb.c +++ b/drivers/net/wireless/libertas/if_usb.c @@ -5,7 +5,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include -#include +#include #include #include #include diff --git a/drivers/net/wireless/libertas/main.c b/drivers/net/wireless/libertas/main.c index b03779bcd547..4ae99a40dbf7 100644 --- a/drivers/net/wireless/libertas/main.c +++ b/drivers/net/wireless/libertas/main.c @@ -6,7 +6,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include +#include #include #include #include diff --git a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c index ba7d96584cb6..68202e63873a 100644 --- a/drivers/net/wireless/libertas_tf/if_usb.c +++ b/drivers/net/wireless/libertas_tf/if_usb.c @@ -15,7 +15,7 @@ #include "if_usb.h" #include -#include +#include #include #include #include -- cgit v1.2.3 From 6eb07caf1ac5723720caea2ee93cd11b7058a0aa Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 15 Sep 2011 19:46:05 -0400 Subject: drivers/net: Add moduleparam.h to drivers as required. These files were using moduleparam infrastructure, but were not including anything for it -- which is fine when module.h is being implicitly included in all files, but that is going away. Signed-off-by: Paul Gortmaker --- drivers/net/ethernet/mellanox/mlx4/en_tx.c | 1 + drivers/net/ethernet/sfc/rx.c | 1 + drivers/net/wimax/i2400m/control.c | 1 + drivers/net/wimax/i2400m/rx.c | 1 + drivers/net/wireless/ath/ath5k/debug.c | 1 + drivers/net/wireless/ath/ath6kl/cfg80211.c | 2 ++ drivers/net/wireless/ath/ath9k/ar9002_hw.c | 1 + drivers/net/wireless/hostap/hostap_ap.c | 1 + drivers/net/wireless/iwmc3200wifi/commands.c | 1 + drivers/net/wireless/iwmc3200wifi/main.c | 1 + 10 files changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index 90f2cd24faac..d901b4267537 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -39,6 +39,7 @@ #include #include #include +#include #include "mlx4_en.h" diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c index adbda182f159..752d521c09b1 100644 --- a/drivers/net/ethernet/sfc/rx.c +++ b/drivers/net/ethernet/sfc/rx.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include "net_driver.h" diff --git a/drivers/net/wimax/i2400m/control.c b/drivers/net/wimax/i2400m/control.c index ec4147a02017..2fea02b35b2d 100644 --- a/drivers/net/wimax/i2400m/control.c +++ b/drivers/net/wimax/i2400m/control.c @@ -79,6 +79,7 @@ #include #include #include +#include #define D_SUBMODULE control diff --git a/drivers/net/wimax/i2400m/rx.c b/drivers/net/wimax/i2400m/rx.c index 9ed741b6a36f..37becfcc98f2 100644 --- a/drivers/net/wimax/i2400m/rx.c +++ b/drivers/net/wimax/i2400m/rx.c @@ -150,6 +150,7 @@ #include #include #include +#include #include "i2400m.h" diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c index a8a72b32328e..d2bdd905a4f7 100644 --- a/drivers/net/wireless/ath/ath5k/debug.c +++ b/drivers/net/wireless/ath/ath5k/debug.c @@ -58,6 +58,7 @@ * THE POSSIBILITY OF SUCH DAMAGES. */ #include +#include #include #include diff --git a/drivers/net/wireless/ath/ath6kl/cfg80211.c b/drivers/net/wireless/ath/ath6kl/cfg80211.c index 3aff36bad5d3..f517eb8f7b44 100644 --- a/drivers/net/wireless/ath/ath6kl/cfg80211.c +++ b/drivers/net/wireless/ath/ath6kl/cfg80211.c @@ -14,6 +14,8 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include + #include "core.h" #include "cfg80211.h" #include "debug.h" diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c index 626d547d2f06..11f192a1ceb7 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c @@ -14,6 +14,7 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#include #include "hw.h" #include "ar5008_initvals.h" #include "ar9001_initvals.h" diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c index f5f9c8c6edd1..e1f410277242 100644 --- a/drivers/net/wireless/hostap/hostap_ap.c +++ b/drivers/net/wireless/hostap/hostap_ap.c @@ -22,6 +22,7 @@ #include #include #include +#include #include "hostap_wlan.h" #include "hostap.h" diff --git a/drivers/net/wireless/iwmc3200wifi/commands.c b/drivers/net/wireless/iwmc3200wifi/commands.c index 50dee6a0a5ca..bd75078c454b 100644 --- a/drivers/net/wireless/iwmc3200wifi/commands.c +++ b/drivers/net/wireless/iwmc3200wifi/commands.c @@ -42,6 +42,7 @@ #include #include #include +#include #include "iwm.h" #include "bus.h" diff --git a/drivers/net/wireless/iwmc3200wifi/main.c b/drivers/net/wireless/iwmc3200wifi/main.c index 362002735b12..98a179f98ea1 100644 --- a/drivers/net/wireless/iwmc3200wifi/main.c +++ b/drivers/net/wireless/iwmc3200wifi/main.c @@ -42,6 +42,7 @@ #include #include #include +#include #include "iwm.h" #include "debug.h" -- cgit v1.2.3 From d0e88ec90151c52ca9aa67adece8f2b8bd3c9f3b Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 29 Sep 2011 16:37:30 -0400 Subject: drivers/net: wireless/ath/ath5k/debug.c does not need module.h It only has module_param and EXPORT_SYMBOL, so now that export.h is in scope at the same time as the recent ath5k update, we can delete this module.h include. Reported-by: Stephen Rothwell Signed-off-by: Paul Gortmaker --- drivers/net/wireless/ath/ath5k/debug.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c index d2bdd905a4f7..8c5ce8b0c734 100644 --- a/drivers/net/wireless/ath/ath5k/debug.c +++ b/drivers/net/wireless/ath/ath5k/debug.c @@ -60,7 +60,6 @@ #include #include -#include #include #include #include "debug.h" -- cgit v1.2.3 From 310587c320e906c59ef4152c41d81b00adf1b259 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 15 Sep 2011 19:42:40 -0400 Subject: drivers/net: fix mislocated headers in cxgb4/l2t.c For some reason three #include are buried way down in the file. Since the inclusion of module.h is one of them, the inclusion comes after use of EXPORT_SYMBOL which will cause warnings about implicit declarations. Relocate all the headers to the top. Signed-off-by: Paul Gortmaker --- drivers/net/ethernet/chelsio/cxgb4/l2t.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c index a2d323c473f8..6ac77a62f361 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c +++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c @@ -37,6 +37,9 @@ #include #include #include +#include +#include +#include #include #include "cxgb4.h" #include "l2t.h" @@ -503,10 +506,6 @@ struct l2t_data *t4_init_l2t(void) return d; } -#include -#include -#include - static inline void *l2t_get_idx(struct seq_file *seq, loff_t pos) { struct l2t_entry *l2tab = seq->private; -- cgit v1.2.3 From 4bb33cc8901898af80d5d4a9917067aa0839922a Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 14:41:48 -0400 Subject: crypto: add module.h to those files that are explicitly using it Part of the include cleanups means that the implicit inclusion of module.h via device.h is going away. So fix things up in advance. Signed-off-by: Paul Gortmaker --- drivers/crypto/mv_cesa.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index 3cf303ee3fe3..5c6f56f21443 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3 From f3bcc0179ab8145615a3b409d652cad1395fb7f3 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 10 Jul 2011 12:43:28 -0400 Subject: mtd: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed These two common macros will be no longer present everywhere. Call out the include needs of them explicitly where required. Signed-off-by: Paul Gortmaker --- drivers/mtd/mtdsuper.c | 1 + drivers/mtd/nand/nand_bbt.c | 1 + drivers/mtd/onenand/onenand_bbt.c | 1 + drivers/mtd/ubi/vmt.c | 1 + 4 files changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c index 16b02a1fc100..89f8e66448ab 100644 --- a/drivers/mtd/mtdsuper.c +++ b/drivers/mtd/mtdsuper.c @@ -14,6 +14,7 @@ #include #include +#include #include #include diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index ccbeaa1e4a8e..4165857752ca 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -67,6 +67,7 @@ #include #include #include +#include static int check_pattern_no_oob(uint8_t *buf, struct nand_bbt_descr *td) { diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c index fc2c16a0fd1c..b2d7fc5ea25d 100644 --- a/drivers/mtd/onenand/onenand_bbt.c +++ b/drivers/mtd/onenand/onenand_bbt.c @@ -15,6 +15,7 @@ #include #include #include +#include /** * check_short_pattern - [GENERIC] check if a pattern is in the buffer diff --git a/drivers/mtd/ubi/vmt.c b/drivers/mtd/ubi/vmt.c index 97e093d19672..863835f4aefe 100644 --- a/drivers/mtd/ubi/vmt.c +++ b/drivers/mtd/ubi/vmt.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "ubi.h" #ifdef CONFIG_MTD_UBI_DEBUG -- cgit v1.2.3 From a0e5cc581b3fc0e0a909e3cab48d9ec286c2a276 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 3 Jul 2011 15:17:31 -0400 Subject: mtd: Add module.h to drivers users that were implicitly using it. We are cleaning up the implicit presence of module.h that these drivers are taking advantage of. Fix them in advance of the cleanup operation. Signed-off-by: Paul Gortmaker --- drivers/mtd/ar7part.c | 1 + drivers/mtd/cmdlinepart.c | 1 + drivers/mtd/lpddr/lpddr_cmds.c | 1 + drivers/mtd/mtdblock_ro.c | 1 + drivers/mtd/nand/cafe_nand.c | 1 + drivers/mtd/nand/cmx270_nand.c | 1 + drivers/mtd/nand/diskonchip.c | 1 + drivers/mtd/nand/omap2.c | 1 + drivers/mtd/nand/sm_common.c | 1 + drivers/mtd/redboot.c | 1 + drivers/mtd/rfd_ftl.c | 1 + 11 files changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c index 6697a1ec72d0..95949b97de6a 100644 --- a/drivers/mtd/ar7part.c +++ b/drivers/mtd/ar7part.c @@ -27,6 +27,7 @@ #include #include #include +#include #define AR7_PARTS 4 #define ROOT_OFFSET 0xe0000 diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index e790f38893b0..8cf667da2408 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -43,6 +43,7 @@ #include #include #include +#include /* error message prefix */ #define ERRP "mtd: " diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c index 65655dd59e1f..1dca31d9a8b3 100644 --- a/drivers/mtd/lpddr/lpddr_cmds.c +++ b/drivers/mtd/lpddr/lpddr_cmds.c @@ -27,6 +27,7 @@ #include #include #include +#include static int lpddr_read(struct mtd_info *mtd, loff_t adr, size_t len, size_t *retlen, u_char *buf); diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c index 795a8c0a05b8..0470a6e86309 100644 --- a/drivers/mtd/mtdblock_ro.c +++ b/drivers/mtd/mtdblock_ro.c @@ -23,6 +23,7 @@ #include #include #include +#include static int mtdblock_readsect(struct mtd_blktrans_dev *dev, unsigned long block, char *buf) diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 87ebb4e5b0c3..7c8df837d3b8 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #define CAFE_NAND_CTRL1 0x00 diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index 6fc043a30d1e..be33b0f4634d 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index 7837728d02ff..e1b84cb90f0d 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -31,6 +31,7 @@ #include #include #include +#include /* Where to look for the devices? */ #ifndef CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 0db2c0e7656a..ec22a5aab038 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c index b6332e83b289..43469715b3fa 100644 --- a/drivers/mtd/nand/sm_common.c +++ b/drivers/mtd/nand/sm_common.c @@ -8,6 +8,7 @@ */ #include #include +#include #include "sm_common.h" static struct nand_ecclayout nand_oob_sm = { diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c index 7a87d07cd79f..84b4dda023f4 100644 --- a/drivers/mtd/redboot.c +++ b/drivers/mtd/redboot.c @@ -28,6 +28,7 @@ #include #include +#include struct fis_image_desc { unsigned char name[16]; // Null terminated name diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c index cc4d1805b864..73ae217a4252 100644 --- a/drivers/mtd/rfd_ftl.c +++ b/drivers/mtd/rfd_ftl.c @@ -18,6 +18,7 @@ #include #include #include +#include #include -- cgit v1.2.3 From d5decd3b9512e35c87492312a72443192eebdda9 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 26 May 2011 16:00:52 -0400 Subject: block: add export.h to files using EXPORT_SYMBOL/THIS_MODULE macros These files were getting via an implicit include path, but we want to crush those out of existence since they cost time during compiles of processing thousands of lines of headers for no reason. Give them the lightweight header that just contains the EXPORT_SYMBOL infrastructure. Signed-off-by: Paul Gortmaker --- drivers/block/aoe/aoeblk.c | 1 + drivers/block/aoe/aoechr.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 528f6318ded1..c01795d00aa5 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "aoe.h" static DEFINE_MUTEX(aoeblk_mutex); diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index 146296ca4965..5f8e39c43ae5 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "aoe.h" enum { -- cgit v1.2.3 From 0c8d44f239b453517d25d0fcfd2737bb5cb34ef8 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 1 Jul 2011 15:56:05 -0400 Subject: block: Fix files that are modules and hence need module.h We want to remove the implicit everywhere presence of module.h so fix up the people relying on that implicit presence in advance. Signed-off-by: Paul Gortmaker --- drivers/block/ps3disk.c | 1 + drivers/block/ps3vram.c | 1 + drivers/block/virtio_blk.c | 1 + 3 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index 8e1ce2e2916a..da0abc1838c1 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c index b3bdb8af89cf..cbd735b931ea 100644 --- a/drivers/block/ps3vram.c +++ b/drivers/block/ps3vram.c @@ -10,6 +10,7 @@ #include #include +#include #include #include #include diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 079c08808d8a..aa7094f23017 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -3,6 +3,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From 9775913fa05c57b046aa076ae03881f8ee66742b Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 17:06:52 -0400 Subject: of: of_pci.c needs export.h since it uses EXPORT_SYMBOLS It was getting it implicitly before, since module.h was pulled in via device.h -- but that is something we are going to make go away soon. Signed-off-by: Paul Gortmaker --- drivers/of/of_pci.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c index 3701b62c1d5e..13e37e2d8ec1 100644 --- a/drivers/of/of_pci.c +++ b/drivers/of/of_pci.c @@ -1,4 +1,5 @@ #include +#include #include #include #include -- cgit v1.2.3 From eef9c3d90bafa1cb0dd397cee400fab21b39abfe Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Thu, 26 May 2011 16:00:52 -0400 Subject: drivers/base: transport_class explicitly requires EXPORT_SYMBOL This file was getting via an implicit include path, but we want to crush those out of existence since they cost time during compiles of processing thousands of lines of headers for no reason. Give it the lightweight header that just contains the EXPORT_SYMBOL infrastructure. Signed-off-by: Paul Gortmaker --- drivers/base/transport_class.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/base/transport_class.c b/drivers/base/transport_class.c index 84997efdb23d..f6c453c3816e 100644 --- a/drivers/base/transport_class.c +++ b/drivers/base/transport_class.c @@ -27,6 +27,7 @@ * transport class is framed entirely in terms of generic devices to * allow it to be used by any physical HBA in the system. */ +#include #include #include -- cgit v1.2.3 From 778f523ddae8b382055a337cd58fe14adc0d17e2 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 10:22:46 -0400 Subject: drivers: power_supply_sysfs.c needs stat.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It was actually getting this before by a tangled mess of implict includes that is going to be cleaned up. Fix it now, so we don't get this after the cleanup. power_supply_sysfs.c: In function ‘power_supply_attr_is_visible’: power_supply_sysfs.c:184: error: ‘S_IRUSR’ undeclared (first use in this function) power_supply_sysfs.c:184: error: (Each undeclared identifier is reported only once power_supply_sysfs.c:184: error: for each function it appears in.) power_supply_sysfs.c:184: error: ‘S_IRGRP’ undeclared (first use in this function) power_supply_sysfs.c:184: error: ‘S_IROTH’ undeclared (first use in this function) power_supply_sysfs.c:196: error: ‘S_IWUSR’ undeclared (first use in this function) make[3]: *** [drivers/power/power_supply_sysfs.o] Error 1 Signed-off-by: Paul Gortmaker --- drivers/power/power_supply_sysfs.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index 605514afc29f..e15d4c9d3988 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "power_supply.h" -- cgit v1.2.3 From d2d8442d0094a7d4b585e2bbde31e3775dba7eb1 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 3 Jul 2011 13:53:48 -0400 Subject: drivers/input: Add module.h to modular drivers implicitly using it A pending cleanup will mean that module.h won't be implicitly everywhere anymore. Make sure the modular drivers in input dir are actually calling out for explicitly in advance. Signed-off-by: Paul Gortmaker --- drivers/input/input-polldev.c | 1 + drivers/input/joystick/as5011.c | 1 + drivers/input/keyboard/nomadik-ske-keypad.c | 1 + drivers/input/keyboard/tnetv107x-keypad.c | 1 + drivers/input/misc/ad714x.c | 1 + drivers/input/misc/adxl34x.c | 1 + drivers/input/misc/ati_remote2.c | 1 + drivers/input/misc/cma3000_d0x.c | 1 + drivers/input/misc/dm355evm_keys.c | 1 + drivers/input/sparse-keymap.c | 1 + drivers/input/touchscreen/ad7877.c | 1 + drivers/input/touchscreen/ad7879-spi.c | 1 + drivers/input/touchscreen/ad7879.c | 1 + drivers/input/touchscreen/ads7846.c | 1 + drivers/input/touchscreen/bu21013_ts.c | 1 + 15 files changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c index b253973881b8..7dfe1009fae0 100644 --- a/drivers/input/input-polldev.c +++ b/drivers/input/input-polldev.c @@ -14,6 +14,7 @@ #include #include #include +#include #include MODULE_AUTHOR("Dmitry Torokhov "); diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c index f6732b57ca07..6d6e7418dc21 100644 --- a/drivers/input/joystick/as5011.c +++ b/drivers/input/joystick/as5011.c @@ -30,6 +30,7 @@ #include #include #include +#include #define DRIVER_DESC "Driver for Austria Microsystems AS5011 joystick" #define MODULE_DEVICE_ALIAS "as5011" diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c index 6e0f23091360..fcdec5e2b297 100644 --- a/drivers/input/keyboard/nomadik-ske-keypad.c +++ b/drivers/input/keyboard/nomadik-ske-keypad.c @@ -18,6 +18,7 @@ #include #include #include +#include #include diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c index 1c58681de81f..66e55e5cfdd6 100644 --- a/drivers/input/keyboard/tnetv107x-keypad.c +++ b/drivers/input/keyboard/tnetv107x-keypad.c @@ -24,6 +24,7 @@ #include #include #include +#include #define BITS(x) (BIT(x) - 1) diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index ca42c7d2a3c7..0ac75bbad4d6 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -12,6 +12,7 @@ #include #include #include +#include #include "ad714x.h" #define AD714X_PWR_CTRL 0x0 diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c index 144ddbdeb9b3..09244804fb97 100644 --- a/drivers/input/misc/adxl34x.c +++ b/drivers/input/misc/adxl34x.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "adxl34x.h" diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c index 1de58e8a1b71..8d345e87075e 100644 --- a/drivers/input/misc/ati_remote2.c +++ b/drivers/input/misc/ati_remote2.c @@ -11,6 +11,7 @@ #include #include +#include #define DRIVER_DESC "ATI/Philips USB RF remote driver" #define DRIVER_VERSION "0.3" diff --git a/drivers/input/misc/cma3000_d0x.c b/drivers/input/misc/cma3000_d0x.c index 1633b6342267..80793f1608eb 100644 --- a/drivers/input/misc/cma3000_d0x.c +++ b/drivers/input/misc/cma3000_d0x.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "cma3000_d0x.h" diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c index 19af682c24fb..7283dd2a1ad3 100644 --- a/drivers/input/misc/dm355evm_keys.c +++ b/drivers/input/misc/dm355evm_keys.c @@ -17,6 +17,7 @@ #include #include +#include /* diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c index fdb6a3976f94..75fb040a3435 100644 --- a/drivers/input/sparse-keymap.c +++ b/drivers/input/sparse-keymap.c @@ -15,6 +15,7 @@ #include #include +#include #include MODULE_AUTHOR("Dmitry Torokhov "); diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index 714d4e0f9f95..400131df677b 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -45,6 +45,7 @@ #include #include #include +#include #include #define TS_PEN_UP_TIMEOUT msecs_to_jiffies(100) diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c index ddf732f3cafc..b1643c8fa7c9 100644 --- a/drivers/input/touchscreen/ad7879-spi.c +++ b/drivers/input/touchscreen/ad7879-spi.c @@ -9,6 +9,7 @@ #include /* BUS_SPI */ #include #include +#include #include "ad7879.h" diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index 131f9d1c921b..3b2e9ed2aeec 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -33,6 +33,7 @@ #include #include +#include #include "ad7879.h" #define AD7879_REG_ZEROS 0 diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index d507b9b67806..de31ec6fe9e4 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -31,6 +31,7 @@ #include #include #include +#include #include /* diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c index 1507ce108d5b..902c7214e887 100644 --- a/drivers/input/touchscreen/bu21013_ts.c +++ b/drivers/input/touchscreen/bu21013_ts.c @@ -13,6 +13,7 @@ #include #include #include +#include #define PEN_DOWN_INTR 0 #define MAX_FINGERS 2 -- cgit v1.2.3 From 15d0580f20f5d3f997e3823bfe39daa3d521a99d Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Tue, 25 Oct 2011 14:51:47 -0400 Subject: drivers/input: add export.h to symbol exporting files. These files are not modules but are exporting symbols and/or making use of THIS_MODULE macro. Signed-off-by: Paul Gortmaker --- drivers/input/input-compat.c | 1 + drivers/input/input-mt.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c index 1accb89ae66f..e46a86776a6b 100644 --- a/drivers/input/input-compat.c +++ b/drivers/input/input-compat.c @@ -8,6 +8,7 @@ * the Free Software Foundation. */ +#include #include #include "input-compat.h" diff --git a/drivers/input/input-mt.c b/drivers/input/input-mt.c index 9150ee78e00a..f658086fbbe0 100644 --- a/drivers/input/input-mt.c +++ b/drivers/input/input-mt.c @@ -9,6 +9,7 @@ */ #include +#include #include #define TRKID_SGN ((TRKID_MAX + 1) >> 1) -- cgit v1.2.3 From 8f86a2c3cb90e8bb0733de2d2b0abbe7050bb536 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 3 Jul 2011 13:39:48 -0400 Subject: hid: Add module.h to fix up implicit users of it A pending cleanup will mean that module.h won't be implicitly everywhere anymore. Make sure the modular drivers in clocksource are actually calling out for explicitly in advance. Signed-off-by: Paul Gortmaker --- drivers/hid/hid-axff.c | 1 + drivers/hid/hid-dr.c | 1 + drivers/hid/hid-emsff.c | 1 + drivers/hid/hid-gaff.c | 1 + drivers/hid/hid-holtekff.c | 1 + drivers/hid/hid-picolcd.c | 1 + drivers/hid/hid-pl.c | 1 + drivers/hid/hid-roccat-common.c | 1 + drivers/hid/hid-roccat.c | 1 + drivers/hid/hid-sjoy.c | 1 + drivers/hid/hid-tmff.c | 1 + drivers/hid/hid-zpff.c | 1 + 12 files changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/hid/hid-axff.c b/drivers/hid/hid-axff.c index 3bdb4500f95e..5be858dd9a15 100644 --- a/drivers/hid/hid-axff.c +++ b/drivers/hid/hid-axff.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "hid-ids.h" diff --git a/drivers/hid/hid-dr.c b/drivers/hid/hid-dr.c index 61eece47204d..e832f44ae383 100644 --- a/drivers/hid/hid-dr.c +++ b/drivers/hid/hid-dr.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "hid-ids.h" diff --git a/drivers/hid/hid-emsff.c b/drivers/hid/hid-emsff.c index a5dc13fe367b..9bdde867a02f 100644 --- a/drivers/hid/hid-emsff.c +++ b/drivers/hid/hid-emsff.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "hid-ids.h" #include "usbhid/usbhid.h" diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c index 279ba530003c..f1e1bcf67427 100644 --- a/drivers/hid/hid-gaff.c +++ b/drivers/hid/hid-gaff.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "hid-ids.h" #ifdef CONFIG_GREENASIA_FF diff --git a/drivers/hid/hid-holtekff.c b/drivers/hid/hid-holtekff.c index 91e3a032112b..4e7542151e22 100644 --- a/drivers/hid/hid-holtekff.c +++ b/drivers/hid/hid-holtekff.c @@ -25,6 +25,7 @@ #include #include +#include #include #include diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c index 1782693819f3..01e7d2cd7c26 100644 --- a/drivers/hid/hid-picolcd.c +++ b/drivers/hid/hid-picolcd.c @@ -36,6 +36,7 @@ #include #include +#include #define PICOLCD_NAME "PicoLCD (graphic)" diff --git a/drivers/hid/hid-pl.c b/drivers/hid/hid-pl.c index 06e5300d43d2..070f93a5c11b 100644 --- a/drivers/hid/hid-pl.c +++ b/drivers/hid/hid-pl.c @@ -40,6 +40,7 @@ #include #include +#include #include #include diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c index edf898dee28b..b07e7f96a358 100644 --- a/drivers/hid/hid-roccat-common.c +++ b/drivers/hid/hid-roccat-common.c @@ -13,6 +13,7 @@ #include #include +#include #include "hid-roccat-common.h" static inline uint16_t roccat_common_feature_report(uint8_t report_id) diff --git a/drivers/hid/hid-roccat.c b/drivers/hid/hid-roccat.c index 5666e7587b18..2596321bab07 100644 --- a/drivers/hid/hid-roccat.c +++ b/drivers/hid/hid-roccat.c @@ -27,6 +27,7 @@ #include #include #include +#include #define ROCCAT_FIRST_MINOR 0 #define ROCCAT_MAX_DEVICES 8 diff --git a/drivers/hid/hid-sjoy.c b/drivers/hid/hid-sjoy.c index 670da9109f86..4b1448613ea6 100644 --- a/drivers/hid/hid-sjoy.c +++ b/drivers/hid/hid-sjoy.c @@ -30,6 +30,7 @@ #include #include #include +#include #include "hid-ids.h" #ifdef CONFIG_SMARTJOYPLUS_FF diff --git a/drivers/hid/hid-tmff.c b/drivers/hid/hid-tmff.c index 575862b0688e..83a933b9c2e9 100644 --- a/drivers/hid/hid-tmff.c +++ b/drivers/hid/hid-tmff.c @@ -31,6 +31,7 @@ #include #include #include +#include #include "hid-ids.h" diff --git a/drivers/hid/hid-zpff.c b/drivers/hid/hid-zpff.c index f31fab012f2f..f6ba81df71bd 100644 --- a/drivers/hid/hid-zpff.c +++ b/drivers/hid/hid-zpff.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "hid-ids.h" -- cgit v1.2.3 From ec37d321b96621906337c4279c490e1b5893ecae Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 10:25:27 -0400 Subject: hid: Fix up files needing export.h for EXPORT_SYMBOL With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker --- drivers/hid/hid-debug.c | 1 + drivers/hid/usbhid/hid-quirks.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c index 9a243ca96e6d..ee80d733801d 100644 --- a/drivers/hid/hid-debug.c +++ b/drivers/hid/hid-debug.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index 4ea464151c3b..5028d60a22a1 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -16,6 +16,7 @@ */ #include +#include #include #include "../hid-ids.h" -- cgit v1.2.3 From 056075c76417b112b4924e7b6386fdc6dfc9ac03 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 3 Jul 2011 13:58:33 -0400 Subject: md: Add module.h to all files using it implicitly A pending cleanup will mean that module.h won't be implicitly everywhere anymore. Make sure the modular drivers in md dir are actually calling out for explicitly in advance. Signed-off-by: Paul Gortmaker --- drivers/md/dm-exception-store.c | 1 + drivers/md/dm-log-userspace-base.c | 1 + drivers/md/dm-path-selector.c | 1 + drivers/md/dm-raid.c | 1 + drivers/md/dm-round-robin.c | 1 + drivers/md/dm-service-time.c | 1 + drivers/md/faulty.c | 1 + drivers/md/linear.c | 1 + drivers/md/md.c | 1 + drivers/md/multipath.c | 1 + drivers/md/raid0.c | 1 + drivers/md/raid1.c | 1 + drivers/md/raid10.c | 1 + drivers/md/raid5.c | 1 + 14 files changed, 14 insertions(+) (limited to 'drivers') diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 0bdb201c2c2a..042e71996569 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #define DM_MSG_PREFIX "snapshot exception stores" diff --git a/drivers/md/dm-log-userspace-base.c b/drivers/md/dm-log-userspace-base.c index 1021c8986011..196246ef39cb 100644 --- a/drivers/md/dm-log-userspace-base.c +++ b/drivers/md/dm-log-userspace-base.c @@ -9,6 +9,7 @@ #include #include #include +#include #include "dm-log-userspace-transfer.h" diff --git a/drivers/md/dm-path-selector.c b/drivers/md/dm-path-selector.c index 42c04f04a0c4..fa0ccc585cb4 100644 --- a/drivers/md/dm-path-selector.c +++ b/drivers/md/dm-path-selector.c @@ -10,6 +10,7 @@ */ #include +#include #include "dm-path-selector.h" diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c index 37a37266a1e3..69c966f517cd 100644 --- a/drivers/md/dm-raid.c +++ b/drivers/md/dm-raid.c @@ -6,6 +6,7 @@ */ #include +#include #include "md.h" #include "raid1.h" diff --git a/drivers/md/dm-round-robin.c b/drivers/md/dm-round-robin.c index 24752f449bef..27f1d423b76c 100644 --- a/drivers/md/dm-round-robin.c +++ b/drivers/md/dm-round-robin.c @@ -14,6 +14,7 @@ #include "dm-path-selector.h" #include +#include #define DM_MSG_PREFIX "multipath round-robin" diff --git a/drivers/md/dm-service-time.c b/drivers/md/dm-service-time.c index 9c6c2e47ad62..59883bd78214 100644 --- a/drivers/md/dm-service-time.c +++ b/drivers/md/dm-service-time.c @@ -12,6 +12,7 @@ #include "dm-path-selector.h" #include +#include #define DM_MSG_PREFIX "multipath service-time" #define ST_MIN_IO 1 diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c index 60816b132c2e..5436b3b4a00c 100644 --- a/drivers/md/faulty.c +++ b/drivers/md/faulty.c @@ -63,6 +63,7 @@ #define MaxFault 50 #include +#include #include #include #include "md.h" diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 10c5844460cb..d116b85ee502 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "md.h" #include "linear.h" diff --git a/drivers/md/md.c b/drivers/md/md.c index 266e82ebaf11..23435fa43888 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index d32c785e17d4..700650d2384a 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -20,6 +20,7 @@ */ #include +#include #include #include #include diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 0eb08a4df759..0cf86cfc87a6 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -20,6 +20,7 @@ #include #include +#include #include #include "md.h" #include "raid0.h" diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 4602fc57c961..66afe3cd0b87 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include "md.h" diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 132c18ef8665..bdceadf9e910 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include "md.h" diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f6fe053a5bed..029506e55d94 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From daaa5f7cbee37dfc8464d350f1eacd6e94b278cc Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 15:50:58 -0400 Subject: md: Add in export.h for files using EXPORT_SYMBOL These files were getting the defines for EXPORT_SYMBOL because device.h was including module.h. But we are going to put an end to that. So add the proper export.h include now. Signed-off-by: Paul Gortmaker --- drivers/md/dm-snap-persistent.c | 1 + drivers/md/dm-snap-transient.c | 1 + drivers/md/dm-uevent.c | 1 + 3 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/md/dm-snap-persistent.c b/drivers/md/dm-snap-persistent.c index d1f1d7017103..3ac415675b6c 100644 --- a/drivers/md/dm-snap-persistent.c +++ b/drivers/md/dm-snap-persistent.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include diff --git a/drivers/md/dm-snap-transient.c b/drivers/md/dm-snap-transient.c index a0898a66a2f8..1ce9a2586e41 100644 --- a/drivers/md/dm-snap-transient.c +++ b/drivers/md/dm-snap-transient.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include diff --git a/drivers/md/dm-uevent.c b/drivers/md/dm-uevent.c index 6b1e3b61b25e..8efe033bab55 100644 --- a/drivers/md/dm-uevent.c +++ b/drivers/md/dm-uevent.c @@ -22,6 +22,7 @@ #include #include #include +#include #include "dm.h" #include "dm-uevent.h" -- cgit v1.2.3 From 363c75db1d7bbda0aa90e680565f2673bab92ee4 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 09:37:25 -0400 Subject: pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE They were implicitly getting it from device.h --> module.h but we want to clean that up. So add the minimal header for these macros. Signed-off-by: Paul Gortmaker --- drivers/pci/ats.c | 1 + drivers/pci/hotplug-pci.c | 1 + drivers/pci/hotplug/pcihp_slot.c | 1 + drivers/pci/htirq.c | 1 + drivers/pci/ioapic.c | 1 + drivers/pci/iov.c | 1 + drivers/pci/irq.c | 1 + drivers/pci/msi.c | 1 + drivers/pci/pci-sysfs.c | 1 + drivers/pci/quirks.c | 1 + drivers/pci/rom.c | 1 + drivers/pci/setup-res.c | 1 + drivers/pci/vpd.c | 1 + 13 files changed, 13 insertions(+) (limited to 'drivers') diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c index f727a09eb72f..7ec56fb0bd78 100644 --- a/drivers/pci/ats.c +++ b/drivers/pci/ats.c @@ -10,6 +10,7 @@ * PASID support added by Joerg Roedel */ +#include #include #include diff --git a/drivers/pci/hotplug-pci.c b/drivers/pci/hotplug-pci.c index 4d4a64478404..d3509cdeb554 100644 --- a/drivers/pci/hotplug-pci.c +++ b/drivers/pci/hotplug-pci.c @@ -1,6 +1,7 @@ /* Core PCI functionality used only by PCI hotplug */ #include +#include #include "pci.h" diff --git a/drivers/pci/hotplug/pcihp_slot.c b/drivers/pci/hotplug/pcihp_slot.c index 3ffd9c1acc0a..8c05a18c9770 100644 --- a/drivers/pci/hotplug/pcihp_slot.c +++ b/drivers/pci/hotplug/pcihp_slot.c @@ -24,6 +24,7 @@ */ #include +#include #include static struct hpp_type0 pci_default_type0 = { diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c index db057b6fe0c8..6e373ea57b32 100644 --- a/drivers/pci/htirq.c +++ b/drivers/pci/htirq.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c index 203508b227b7..5775638ac017 100644 --- a/drivers/pci/ioapic.c +++ b/drivers/pci/ioapic.c @@ -17,6 +17,7 @@ */ #include +#include #include #include #include diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 9b4e88c636f8..b82c155d7b37 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c index de01174aff06..e5f69a43b1b1 100644 --- a/drivers/pci/irq.c +++ b/drivers/pci/irq.c @@ -7,6 +7,7 @@ #include #include #include +#include #include static void pci_note_irq_problem(struct pci_dev *pdev, const char *reason) diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 2f10328bf661..0e6d04d7ba4f 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 7bcf12adced7..106be0d08f81 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 7285145ac1c9..64765474676f 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -17,6 +17,7 @@ #include #include +#include #include #include #include diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index 36864a935d68..48ebdb237f3f 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -7,6 +7,7 @@ * PCI ROM access routines */ #include +#include #include #include diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 51a9095c7da4..5717509becbe 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -18,6 +18,7 @@ #include #include +#include #include #include #include diff --git a/drivers/pci/vpd.c b/drivers/pci/vpd.c index a5a5ca17cfe6..39b79070335d 100644 --- a/drivers/pci/vpd.c +++ b/drivers/pci/vpd.c @@ -6,6 +6,7 @@ */ #include +#include int pci_vpd_find_tag(const u8 *buf, unsigned int off, unsigned int len, u8 rdt) { -- cgit v1.2.3 From eefa9cfc891d18aa83744353d2a3fbe95a86ee2d Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 09:42:30 -0400 Subject: pci: add module.h to files implicitly relying on its presence. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit These were getting module.h implicitly from device.h but we want to clean that up, so we fix it here to avoid things like: pci/slot.c: In function ‘pci_hp_create_module_link’: pci/slot.c:383: error: ‘module_kset’ undeclared (first use in this function) Similarly, rpadlpar_core.c is modular, so add module.h to its includes. Signed-off-by: Paul Gortmaker --- drivers/pci/hotplug/pciehp_acpi.c | 1 + drivers/pci/hotplug/rpadlpar_core.c | 1 + drivers/pci/slot.c | 1 + 3 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c index 5f7226223a62..376d70d17176 100644 --- a/drivers/pci/hotplug/pciehp_acpi.c +++ b/drivers/pci/hotplug/pciehp_acpi.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "pciehp.h" #define PCIEHP_DETECT_PCIE (0) diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index 1d002b1c2bf4..c56a9413e1af 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -18,6 +18,7 @@ #undef DEBUG #include +#include #include #include #include diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index 968cfea04f74..ac6412fb8d6f 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -7,6 +7,7 @@ #include #include +#include #include #include #include "pci.h" -- cgit v1.2.3 From 09703660edf83b8b6d175440bf745f30580d85ab Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 09:37:25 -0400 Subject: scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required For the basic SCSI infrastructure files that are exporting symbols but not modules themselves, add in the basic export.h header file to allow the exports. Signed-off-by: Paul Gortmaker --- drivers/scsi/bfa/bfad_debugfs.c | 1 + drivers/scsi/bfa/bfad_im.c | 2 ++ drivers/scsi/libfc/fc_disc.c | 1 + drivers/scsi/libfc/fc_elsct.c | 1 + drivers/scsi/libfc/fc_exch.c | 1 + drivers/scsi/libfc/fc_npiv.c | 1 + drivers/scsi/libfc/fc_rport.c | 1 + drivers/scsi/libsas/sas_host_smp.c | 1 + drivers/scsi/libsas/sas_scsi_host.c | 1 + drivers/scsi/libsas/sas_task.c | 1 + drivers/scsi/lpfc/lpfc_scsi.c | 1 + drivers/scsi/scsi_lib.c | 1 + drivers/scsi/scsi_lib_dma.c | 1 + drivers/scsi/scsi_netlink.c | 1 + drivers/scsi/scsi_pm.c | 1 + drivers/scsi/scsi_tgt_if.c | 1 + 16 files changed, 17 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c index b412e0300dd4..dee1a094c2c2 100644 --- a/drivers/scsi/bfa/bfad_debugfs.c +++ b/drivers/scsi/bfa/bfad_debugfs.c @@ -16,6 +16,7 @@ */ #include +#include #include "bfad_drv.h" #include "bfad_im.h" diff --git a/drivers/scsi/bfa/bfad_im.c b/drivers/scsi/bfa/bfad_im.c index 01312381639f..e5db649e8eb7 100644 --- a/drivers/scsi/bfa/bfad_im.c +++ b/drivers/scsi/bfa/bfad_im.c @@ -19,6 +19,8 @@ * bfad_im.c Linux driver IM module. */ +#include + #include "bfad_drv.h" #include "bfad_im.h" #include "bfa_fcs.h" diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c index b9cb8140b398..7269e928824a 100644 --- a/drivers/scsi/libfc/fc_disc.c +++ b/drivers/scsi/libfc/fc_disc.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/libfc/fc_elsct.c b/drivers/scsi/libfc/fc_elsct.c index 9b25969e2ad0..fb9161dc4ca6 100644 --- a/drivers/scsi/libfc/fc_elsct.c +++ b/drivers/scsi/libfc/fc_elsct.c @@ -21,6 +21,7 @@ * Provide interface to send ELS/CT FC frames */ +#include #include #include #include diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c index 7c055fdca45d..859693bd77b5 100644 --- a/drivers/scsi/libfc/fc_exch.c +++ b/drivers/scsi/libfc/fc_exch.c @@ -26,6 +26,7 @@ #include #include #include +#include #include diff --git a/drivers/scsi/libfc/fc_npiv.c b/drivers/scsi/libfc/fc_npiv.c index f33b897e4784..9fbf78ed821b 100644 --- a/drivers/scsi/libfc/fc_npiv.c +++ b/drivers/scsi/libfc/fc_npiv.c @@ -22,6 +22,7 @@ */ #include +#include /** * fc_vport_create() - Create a new NPIV vport instance diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c index 760db7619446..b9e434844a69 100644 --- a/drivers/scsi/libfc/fc_rport.c +++ b/drivers/scsi/libfc/fc_rport.c @@ -51,6 +51,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/libsas/sas_host_smp.c b/drivers/scsi/libsas/sas_host_smp.c index e1aa17840c5b..bb8f49269a68 100644 --- a/drivers/scsi/libsas/sas_host_smp.c +++ b/drivers/scsi/libsas/sas_host_smp.c @@ -11,6 +11,7 @@ #include #include #include +#include #include "sas_internal.h" diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index b2c4a7731656..b6e233d9a0a1 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -25,6 +25,7 @@ #include #include +#include #include #include "sas_internal.h" diff --git a/drivers/scsi/libsas/sas_task.c b/drivers/scsi/libsas/sas_task.c index b13a3346894c..a78e5bd3e514 100644 --- a/drivers/scsi/libsas/sas_task.c +++ b/drivers/scsi/libsas/sas_task.c @@ -1,4 +1,5 @@ #include +#include #include #include diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 5b8790b3cf4b..2e1e54e5c3ae 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index fc3f168decb4..cdd3436f2ecb 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/scsi_lib_dma.c b/drivers/scsi/scsi_lib_dma.c index dcd128583b89..2ac3f3975f78 100644 --- a/drivers/scsi/scsi_lib_dma.c +++ b/drivers/scsi/scsi_lib_dma.c @@ -4,6 +4,7 @@ #include #include +#include #include #include diff --git a/drivers/scsi/scsi_netlink.c b/drivers/scsi/scsi_netlink.c index 26a8a45584ef..44f76e8b58af 100644 --- a/drivers/scsi/scsi_netlink.c +++ b/drivers/scsi/scsi_netlink.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c index d82a023a9015..d329f8b12e2b 100644 --- a/drivers/scsi/scsi_pm.c +++ b/drivers/scsi/scsi_pm.c @@ -6,6 +6,7 @@ */ #include +#include #include #include diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c index 0172de197008..6209110f295d 100644 --- a/drivers/scsi/scsi_tgt_if.c +++ b/drivers/scsi/scsi_tgt_if.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From acf3368ffb75fc4a83726655d697e79646fe4eb3 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 09:47:43 -0400 Subject: scsi: Fix up files implicitly depending on module.h inclusion The module.h header was implicitly present everywhere, so files with no explicit include of the module infrastructure would build anyway. We are now removing the implicit include, and so we need to call out the module.h file that we need explicitly. Signed-off-by: Paul Gortmaker --- drivers/scsi/a2091.c | 1 + drivers/scsi/a3000.c | 1 + drivers/scsi/aacraid/aachba.c | 1 + drivers/scsi/be2iscsi/be_main.c | 1 + drivers/scsi/cxgbi/libcxgbi.c | 1 + drivers/scsi/device_handler/scsi_dh.c | 1 + drivers/scsi/device_handler/scsi_dh_alua.c | 1 + drivers/scsi/device_handler/scsi_dh_emc.c | 1 + drivers/scsi/device_handler/scsi_dh_hp_sw.c | 1 + drivers/scsi/device_handler/scsi_dh_rdac.c | 1 + drivers/scsi/gvp11.c | 1 + drivers/scsi/iscsi_tcp.c | 1 + drivers/scsi/libfc/fc_libfc.c | 1 + drivers/scsi/libfc/fc_lport.c | 1 + drivers/scsi/libiscsi.c | 1 + drivers/scsi/libiscsi_tcp.c | 1 + drivers/scsi/libsrp.c | 1 + drivers/scsi/lpfc/lpfc_attr.c | 1 + drivers/scsi/lpfc/lpfc_debugfs.c | 1 + drivers/scsi/lpfc/lpfc_init.c | 1 + drivers/scsi/mac53c94.c | 1 + drivers/scsi/megaraid/megaraid_mbox.c | 1 + drivers/scsi/osd/osd_initiator.c | 1 + drivers/scsi/ps3rom.c | 1 + drivers/scsi/sr_ioctl.c | 1 + 25 files changed, 25 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/a2091.c b/drivers/scsi/a2091.c index 1bb5d3f0e260..79a30633d4aa 100644 --- a/drivers/scsi/a2091.c +++ b/drivers/scsi/a2091.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c index d9468027fb61..e29fe0e708f8 100644 --- a/drivers/scsi/a3000.c +++ b/drivers/scsi/a3000.c @@ -6,6 +6,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 061995741444..409f5805bdd6 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -34,6 +34,7 @@ #include #include #include /* For flush_kernel_dcache_page */ +#include #include #include diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 7b0a8ab71049..379c696dac19 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index c363a4b260fd..c10f74a566f2 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -25,6 +25,7 @@ #include #include #include /* ip_dev_find */ +#include #include static unsigned int dbg_level; diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c index 7c05fd9dccfd..2a6cf73ec92d 100644 --- a/drivers/scsi/device_handler/scsi_dh.c +++ b/drivers/scsi/device_handler/scsi_dh.c @@ -22,6 +22,7 @@ */ #include +#include #include #include "../scsi_priv.h" diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 627f4b5e5176..25bfcfaa6783 100644 --- a/drivers/scsi/device_handler/scsi_dh_alua.c +++ b/drivers/scsi/device_handler/scsi_dh_alua.c @@ -21,6 +21,7 @@ */ #include #include +#include #include #include #include diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c index 48441f6908a4..591186cf1896 100644 --- a/drivers/scsi/device_handler/scsi_dh_emc.c +++ b/drivers/scsi/device_handler/scsi_dh_emc.c @@ -21,6 +21,7 @@ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ #include +#include #include #include #include diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c index b479f1eef968..0f86a18b157d 100644 --- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c +++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c @@ -22,6 +22,7 @@ */ #include +#include #include #include #include diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c index 82d612f0c49d..1d3127920063 100644 --- a/drivers/scsi/device_handler/scsi_dh_rdac.c +++ b/drivers/scsi/device_handler/scsi_dh_rdac.c @@ -24,6 +24,7 @@ #include #include #include +#include #define RDAC_NAME "rdac" #define RDAC_RETRY_COUNT 5 diff --git a/drivers/scsi/gvp11.c b/drivers/scsi/gvp11.c index 50bb54150a78..488fbc648656 100644 --- a/drivers/scsi/gvp11.c +++ b/drivers/scsi/gvp11.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 23e706673d06..7c34d8e7cc75 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -35,6 +35,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/libfc/fc_libfc.c b/drivers/scsi/libfc/fc_libfc.c index b7735129f1f3..1bf9841ef154 100644 --- a/drivers/scsi/libfc/fc_libfc.c +++ b/drivers/scsi/libfc/fc_libfc.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c index 628f347404f9..31018a8465ab 100644 --- a/drivers/scsi/libfc/fc_lport.c +++ b/drivers/scsi/libfc/fc_lport.c @@ -89,6 +89,7 @@ #include #include +#include #include #include diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index d7c76f2eb636..143bbe448bec 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 09b232fd9a1b..5715a3d0a3d3 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/libsrp.c b/drivers/scsi/libsrp.c index ff6a28ce9b69..0707ecdbaa32 100644 --- a/drivers/scsi/libsrp.c +++ b/drivers/scsi/libsrp.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 4b0333ee2d94..d0ebaeb7ef60 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 2cd844f7058f..28382596fb9a 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -20,6 +20,7 @@ #include #include +#include #include #include #include diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 907c94b9245d..55bc4fc7376f 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c index 6c42dff0f4d3..e6173376605d 100644 --- a/drivers/scsi/mac53c94.c +++ b/drivers/scsi/mac53c94.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c index 8883ca36f932..35bd13879fed 100644 --- a/drivers/scsi/megaraid/megaraid_mbox.c +++ b/drivers/scsi/megaraid/megaraid_mbox.c @@ -71,6 +71,7 @@ */ #include +#include #include "megaraid_mbox.h" static int megaraid_init(void); diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c index 86afb13f1e79..c06b8e5aa2cf 100644 --- a/drivers/scsi/osd/osd_initiator.c +++ b/drivers/scsi/osd/osd_initiator.c @@ -40,6 +40,7 @@ */ #include +#include #include #include diff --git a/drivers/scsi/ps3rom.c b/drivers/scsi/ps3rom.c index cd178b9e40cd..959f10055be7 100644 --- a/drivers/scsi/ps3rom.c +++ b/drivers/scsi/ps3rom.c @@ -20,6 +20,7 @@ #include #include +#include #include #include diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c index 8be30554119b..a3911c39ea50 100644 --- a/drivers/scsi/sr_ioctl.c +++ b/drivers/scsi/sr_ioctl.c @@ -4,6 +4,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From 6eb0de827084060e6607c8f8542d9e9566214538 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 3 Jul 2011 16:09:31 -0400 Subject: usb: Add module.h to drivers/usb consumers who really use it. The situation up to this point meant that module.h was pretty much everywhere, regardless of whether you asked for it or not. We are fixing that, so give the USB folks who want it an actual include of it. Signed-off-by: Paul Gortmaker --- drivers/usb/c67x00/c67x00-drv.c | 1 + drivers/usb/gadget/cdc2.c | 1 + drivers/usb/gadget/composite.c | 1 + drivers/usb/gadget/dbgp.c | 1 + drivers/usb/gadget/f_obex.c | 1 + drivers/usb/gadget/f_sourcesink.c | 1 + drivers/usb/gadget/file_storage.c | 1 + drivers/usb/gadget/fusb300_udc.c | 1 + drivers/usb/gadget/gmidi.c | 1 + drivers/usb/host/fsl-mph-dr-of.c | 1 + drivers/usb/host/isp1760-if.c | 1 + drivers/usb/host/whci/hcd.c | 1 + drivers/usb/host/xhci-pci.c | 1 + drivers/usb/otg/gpio_vbus.c | 1 + drivers/usb/serial/aircable.c | 1 + drivers/usb/serial/qcserial.c | 1 + drivers/usb/storage/option_ms.c | 1 + drivers/usb/storage/sierra_ms.c | 1 + drivers/usb/storage/uas.c | 1 + drivers/usb/wusbcore/wa-hc.c | 1 + 20 files changed, 20 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c index 62050f7a4f97..57ae44cd0b88 100644 --- a/drivers/usb/c67x00/c67x00-drv.c +++ b/drivers/usb/c67x00/c67x00-drv.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index 672674c2fb3d..725550f06fab 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -12,6 +12,7 @@ #include #include +#include #include "u_ether.h" #include "u_serial.h" diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 8a5529d214fb..f71b0787983f 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c index f855ecf7a637..6256420089f3 100644 --- a/drivers/usb/gadget/dbgp.c +++ b/drivers/usb/gadget/dbgp.c @@ -9,6 +9,7 @@ /* verbose messages */ #include #include +#include #include #include diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c index e3f74bf5da2d..5f400f66aa9b 100644 --- a/drivers/usb/gadget/f_obex.c +++ b/drivers/usb/gadget/f_obex.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "u_serial.h" #include "gadget_chips.h" diff --git a/drivers/usb/gadget/f_sourcesink.c b/drivers/usb/gadget/f_sourcesink.c index 168906d2b5d4..7aa7ac82c02c 100644 --- a/drivers/usb/gadget/f_sourcesink.c +++ b/drivers/usb/gadget/f_sourcesink.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "g_zero.h" #include "gadget_chips.h" diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 3ac4f51cd0bb..f7e39b0365ce 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -243,6 +243,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index e593f2849fa9..74da206c8406 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c index 8fcde37aa6d4..681bd038b1d8 100644 --- a/drivers/usb/gadget/gmidi.c +++ b/drivers/usb/gadget/gmidi.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c index 79a66d622f9c..9037035ad1e4 100644 --- a/drivers/usb/host/fsl-mph-dr-of.c +++ b/drivers/usb/host/fsl-mph-dr-of.c @@ -16,6 +16,7 @@ #include #include #include +#include struct fsl_usb2_dev_data { char *dr_mode; /* controller mode */ diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index 2c7fc830c9e4..a7dc1e1d45f2 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -11,6 +11,7 @@ #include #include +#include #include #include #include diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c index 9546f6cd01f0..1e141f755b26 100644 --- a/drivers/usb/host/whci/hcd.c +++ b/drivers/usb/host/whci/hcd.c @@ -17,6 +17,7 @@ */ #include #include +#include #include #include "../../wusbcore/wusbhc.h" diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 9f51f88cc0f5..ef98b38626fb 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -22,6 +22,7 @@ #include #include +#include #include "xhci.h" diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c index 52733d9959b4..fb644c107ded 100644 --- a/drivers/usb/otg/gpio_vbus.c +++ b/drivers/usb/otg/gpio_vbus.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index aba201cb872c..b43d07df4c44 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -47,6 +47,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index b9bb24729c99..aa9367f5b421 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -13,6 +13,7 @@ #include #include +#include #include #include #include diff --git a/drivers/usb/storage/option_ms.c b/drivers/usb/storage/option_ms.c index 89460181d122..e0f76bb05915 100644 --- a/drivers/usb/storage/option_ms.c +++ b/drivers/usb/storage/option_ms.c @@ -22,6 +22,7 @@ #include #include +#include #include "usb.h" #include "transport.h" diff --git a/drivers/usb/storage/sierra_ms.c b/drivers/usb/storage/sierra_ms.c index 1deca07c8265..37539c89e3ba 100644 --- a/drivers/usb/storage/sierra_ms.c +++ b/drivers/usb/storage/sierra_ms.c @@ -3,6 +3,7 @@ #include #include #include +#include #include #include "usb.h" diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 23f0dd9c36d4..1d10d5b8204c 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c index 0d1863c9edde..9e4a92461688 100644 --- a/drivers/usb/wusbcore/wa-hc.c +++ b/drivers/usb/wusbcore/wa-hc.c @@ -23,6 +23,7 @@ * FIXME: docs */ #include +#include #include "wusbhc.h" #include "wa-hc.h" -- cgit v1.2.3 From f940fcd8eadfe5b909a1474b57de7755edeee62b Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 09:56:31 -0400 Subject: usb: Add export.h for EXPORT_SYMBOL/THIS_MODULE where needed With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Use the lightweight version of the header that has just THIS_MODULE and EXPORT_SYMBOL variants. Signed-off-by: Paul Gortmaker --- drivers/usb/core/driver.c | 1 + drivers/usb/core/notify.c | 1 + drivers/usb/gadget/f_fs.c | 1 + drivers/usb/gadget/u_serial.c | 1 + drivers/usb/host/pci-quirks.c | 1 + drivers/usb/host/whci/debug.c | 1 + drivers/usb/mon/mon_bin.c | 1 + drivers/usb/mon/mon_stat.c | 1 + drivers/usb/mon/mon_text.c | 1 + drivers/usb/otg/otg.c | 1 + drivers/usb/otg/ulpi.c | 1 + drivers/usb/storage/protocol.c | 1 + drivers/usb/storage/transport.c | 1 + drivers/usb/wusbcore/devconnect.c | 1 + drivers/usb/wusbcore/mmc.c | 1 + drivers/usb/wusbcore/rh.c | 1 + drivers/usb/wusbcore/security.c | 1 + drivers/usb/wusbcore/wa-rpipe.c | 1 + drivers/usb/wusbcore/wa-xfer.c | 1 + 19 files changed, 19 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 3b029a0a4787..2de2803f6533 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c index 7542dce3f5a1..7728c91dfa2e 100644 --- a/drivers/usb/core/notify.c +++ b/drivers/usb/core/notify.c @@ -10,6 +10,7 @@ #include +#include #include #include #include diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 6b1c20b6c9b2..acb38004eec0 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -20,6 +20,7 @@ #include #include +#include #include #include diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 3a4a664bab44..6597a6813e43 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "u_serial.h" diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 629a96813fd6..27a3dec32fa2 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include "pci-quirks.h" diff --git a/drivers/usb/host/whci/debug.c b/drivers/usb/host/whci/debug.c index 767af265e002..ba61dae9e4d2 100644 --- a/drivers/usb/host/whci/debug.c +++ b/drivers/usb/host/whci/debug.c @@ -19,6 +19,7 @@ #include #include #include +#include #include "../../wusbcore/wusbhc.h" diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index a04b2ff9dd83..91cd85076a44 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c index e5ce42bd316e..ebd6189a5014 100644 --- a/drivers/usb/mon/mon_stat.c +++ b/drivers/usb/mon/mon_stat.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index 1c3afcc11bd9..ad408251d955 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/usb/otg/otg.c b/drivers/usb/otg/otg.c index fb7adeff9ffa..307c27bc51eb 100644 --- a/drivers/usb/otg/otg.c +++ b/drivers/usb/otg/otg.c @@ -10,6 +10,7 @@ */ #include +#include #include #include diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c index 770d799d5afb..0b0466728fdc 100644 --- a/drivers/usb/otg/ulpi.c +++ b/drivers/usb/otg/ulpi.c @@ -25,6 +25,7 @@ #include #include +#include #include #include #include diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index fc310f75eada..93c1a4d86f51 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -43,6 +43,7 @@ */ #include +#include #include #include diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index ff32390d61e5..0e5c91c6187f 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -46,6 +46,7 @@ #include #include #include +#include #include diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c index 7ec24e46b34b..231009af65a3 100644 --- a/drivers/usb/wusbcore/devconnect.c +++ b/drivers/usb/wusbcore/devconnect.c @@ -90,6 +90,7 @@ #include #include #include +#include #include "wusbhc.h" static void wusbhc_devconnect_acked_work(struct work_struct *work); diff --git a/drivers/usb/wusbcore/mmc.c b/drivers/usb/wusbcore/mmc.c index 0a57ff0a0b0c..b8c72583c040 100644 --- a/drivers/usb/wusbcore/mmc.c +++ b/drivers/usb/wusbcore/mmc.c @@ -38,6 +38,7 @@ */ #include #include +#include #include "wusbhc.h" /* Initialize the MMCIEs handling mechanism */ diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c index 39de3900ad20..59ff254dfb6f 100644 --- a/drivers/usb/wusbcore/rh.c +++ b/drivers/usb/wusbcore/rh.c @@ -70,6 +70,7 @@ * wusbhc_rh_start_port_reset() ??? unimplemented */ #include +#include #include "wusbhc.h" /* diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index b60799b811c1..371f61733f05 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "wusbhc.h" static void wusbhc_set_gtk_callback(struct urb *urb); diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c index 2acc7f504c51..f0d546c5a089 100644 --- a/drivers/usb/wusbcore/wa-rpipe.c +++ b/drivers/usb/wusbcore/wa-rpipe.c @@ -61,6 +61,7 @@ #include #include #include +#include #include "wusbhc.h" #include "wa-hc.h" diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 419334568be6..57c01ab09ad8 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -84,6 +84,7 @@ #include #include #include +#include #include "wa-hc.h" #include "wusbhc.h" -- cgit v1.2.3 From 4bcbcc96e16fd44eaf9791cb369da757dae1656c Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 18 Jul 2011 14:42:00 -0400 Subject: usb: fix implicit usage of gfp.h in host/xhci-hub.c To fix this build error on ARM: drivers/usb/host/xhci-hub.c: In function 'xhci_stop_device': drivers/usb/host/xhci-hub.c:261: error: 'GFP_NOIO' undeclared (first use in this function) make[4]: *** [drivers/usb/host/xhci-hub.o] Error 1 Signed-off-by: Paul Gortmaker --- drivers/usb/host/xhci-hub.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 431efe72b1f7..430e88fd3f6c 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -20,6 +20,7 @@ * Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include #include #include "xhci.h" -- cgit v1.2.3 From a59b968ee0ff6e68443d5790fda2a117b36c1f9b Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 29 Aug 2011 16:44:23 -0400 Subject: bluetooth: add module.h to drivers/bluetooth files as required. Signed-off-by: Paul Gortmaker --- drivers/bluetooth/btmrvl_main.c | 2 ++ drivers/bluetooth/btmrvl_sdio.c | 1 + drivers/bluetooth/btwilink.c | 1 + 3 files changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c index 548d1d9e4dda..a88a78c86162 100644 --- a/drivers/bluetooth/btmrvl_main.c +++ b/drivers/bluetooth/btmrvl_main.c @@ -18,6 +18,8 @@ * this warranty disclaimer. **/ +#include + #include #include diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index c827d737ccee..9ef48167e2cf 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -23,6 +23,7 @@ #include #include +#include #include #include diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c index 04d353f58d71..b5f83b44a0cd 100644 --- a/drivers/bluetooth/btwilink.c +++ b/drivers/bluetooth/btwilink.c @@ -29,6 +29,7 @@ #include #include +#include /* Bluetooth Driver Version */ #define VERSION "1.0" -- cgit v1.2.3 From 578b9ce0095ff3dd2c3b94508407c3be8fcce68d Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 16:14:23 -0400 Subject: tty: Add module.h to drivers/tty users who just expect it there. We are cleaning up the issue that means module.h is omnipresent. These tty users are the people who implictly are relying on that. Fix up the real users to call out the include that they really need. In the case of jsm_driver.c file, it had moduleparam.h but that isn't enough and it needs the full module.h Signed-off-by: Paul Gortmaker --- drivers/tty/hvc/hvc_iseries.c | 1 + drivers/tty/hvc/hvc_vio.c | 1 + drivers/tty/serial/jsm/jsm_driver.c | 2 +- drivers/tty/serial/kgdboc.c | 1 + drivers/tty/serial/max3100.c | 1 + drivers/tty/serial/max3107-aava.c | 1 + drivers/tty/serial/max3107.c | 1 + drivers/tty/serial/timbuart.c | 1 + drivers/tty/serial/xilinx_uartps.c | 1 + 9 files changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/tty/hvc/hvc_iseries.c b/drivers/tty/hvc/hvc_iseries.c index 21c54955084e..3f4a897bf4d7 100644 --- a/drivers/tty/hvc/hvc_iseries.c +++ b/drivers/tty/hvc/hvc_iseries.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c index 130aace67f31..fc3c3ad6c072 100644 --- a/drivers/tty/hvc/hvc_vio.c +++ b/drivers/tty/hvc/hvc_vio.c @@ -41,6 +41,7 @@ #include #include #include +#include #include #include diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c index 648b6a3efa32..7c867a046c97 100644 --- a/drivers/tty/serial/jsm/jsm_driver.c +++ b/drivers/tty/serial/jsm/jsm_driver.c @@ -24,7 +24,7 @@ * * ***********************************************************************/ -#include +#include #include #include diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c index 87e7e6c876d4..2b42a01a81c6 100644 --- a/drivers/tty/serial/kgdboc.c +++ b/drivers/tty/serial/kgdboc.c @@ -19,6 +19,7 @@ #include #include #include +#include #define MAX_CONFIG_LEN 40 diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c index 2af5aa5f3a80..8a6cc8c30b5a 100644 --- a/drivers/tty/serial/max3100.c +++ b/drivers/tty/serial/max3100.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/tty/serial/max3107-aava.c b/drivers/tty/serial/max3107-aava.c index d73aadd7a9ad..90c40f22ec70 100644 --- a/drivers/tty/serial/max3107-aava.c +++ b/drivers/tty/serial/max3107-aava.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include "max3107.h" diff --git a/drivers/tty/serial/max3107.c b/drivers/tty/serial/max3107.c index db00b595cab0..7827000db4f5 100644 --- a/drivers/tty/serial/max3107.c +++ b/drivers/tty/serial/max3107.c @@ -36,6 +36,7 @@ #include #include #include +#include #include "max3107.h" static const struct baud_table brg26_ext[] = { diff --git a/drivers/tty/serial/timbuart.c b/drivers/tty/serial/timbuart.c index a4b63bfeaa2f..e76c8b747fb8 100644 --- a/drivers/tty/serial/timbuart.c +++ b/drivers/tty/serial/timbuart.c @@ -29,6 +29,7 @@ #include #include #include +#include #include "timbuart.h" diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index 8c03b127fd03..b627363352e5 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -20,6 +20,7 @@ #include #include #include +#include #define XUARTPS_TTY_NAME "ttyPS" #define XUARTPS_NAME "xuartps" -- cgit v1.2.3 From 0e648f42f24f89e24c4dcac534d8e7086c9fd559 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 10:46:24 -0400 Subject: tty: Add export.h for EXPORT_SYMBOL/THIS_MODULE to exporters With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker --- drivers/tty/serial/nwpserial.c | 1 + drivers/tty/vt/vc_screen.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/tty/serial/nwpserial.c b/drivers/tty/serial/nwpserial.c index 9beaff1cec24..dd4c31d1aee5 100644 --- a/drivers/tty/serial/nwpserial.c +++ b/drivers/tty/serial/nwpserial.c @@ -10,6 +10,7 @@ * */ #include +#include #include #include #include diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index 66825c9f516a..7a367ff5122b 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From 2113852b239ed4a93d04135372162252f9342bb6 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 09:57:25 -0400 Subject: rtc: Add module.h to implicit users in drivers/rtc The module.h was implicitly everywhere, but when we clean that up, the implicit users will compile fail; fix them up in advance. Signed-off-by: Paul Gortmaker --- drivers/rtc/interface.c | 1 + drivers/rtc/rtc-dm355evm.c | 1 + drivers/rtc/rtc-ds1305.c | 1 + drivers/rtc/rtc-ds1511.c | 1 + drivers/rtc/rtc-ds1553.c | 1 + drivers/rtc/rtc-ds1672.c | 1 + drivers/rtc/rtc-ds1742.c | 1 + drivers/rtc/rtc-em3027.c | 1 + drivers/rtc/rtc-isl12022.c | 1 + drivers/rtc/rtc-mv.c | 1 + drivers/rtc/rtc-pcf2123.c | 1 + drivers/rtc/rtc-pcf8563.c | 1 + drivers/rtc/rtc-rs5c348.c | 1 + drivers/rtc/rtc-rs5c372.c | 1 + drivers/rtc/rtc-stk17ta8.c | 1 + drivers/rtc/rtc-tx4939.c | 1 + drivers/rtc/rtc-x1205.c | 1 + 17 files changed, 17 insertions(+) (limited to 'drivers') diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 44e91e598f8d..8e286259a007 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -13,6 +13,7 @@ #include #include +#include #include #include diff --git a/drivers/rtc/rtc-dm355evm.c b/drivers/rtc/rtc-dm355evm.c index 58d4e18530da..2322c43af201 100644 --- a/drivers/rtc/rtc-dm355evm.c +++ b/drivers/rtc/rtc-dm355evm.c @@ -14,6 +14,7 @@ #include #include +#include /* diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c index 57fbcc149ba7..3a33b1fdbe0f 100644 --- a/drivers/rtc/rtc-ds1305.c +++ b/drivers/rtc/rtc-ds1305.c @@ -17,6 +17,7 @@ #include #include +#include /* diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c index 568ad30617e7..586c244a05d8 100644 --- a/drivers/rtc/rtc-ds1511.c +++ b/drivers/rtc/rtc-ds1511.c @@ -23,6 +23,7 @@ #include #include #include +#include #define DRV_VERSION "0.6" diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c index fee41b97c9e8..1350029044e6 100644 --- a/drivers/rtc/rtc-ds1553.c +++ b/drivers/rtc/rtc-ds1553.c @@ -18,6 +18,7 @@ #include #include #include +#include #define DRV_VERSION "0.3" diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c index 06dfb54f99b6..a319402a5447 100644 --- a/drivers/rtc/rtc-ds1672.c +++ b/drivers/rtc/rtc-ds1672.c @@ -11,6 +11,7 @@ #include #include +#include #define DRV_VERSION "0.4" diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c index d84a448dd754..e3e0f92b60f0 100644 --- a/drivers/rtc/rtc-ds1742.c +++ b/drivers/rtc/rtc-ds1742.c @@ -21,6 +21,7 @@ #include #include #include +#include #define DRV_VERSION "0.4" diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c index d8e1c2578553..8414dea5fb14 100644 --- a/drivers/rtc/rtc-em3027.c +++ b/drivers/rtc/rtc-em3027.c @@ -14,6 +14,7 @@ #include #include #include +#include /* Registers */ #define EM3027_REG_ON_OFF_CTRL 0x00 diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c index ddbc797ea6cd..6186833973ee 100644 --- a/drivers/rtc/rtc-isl12022.c +++ b/drivers/rtc/rtc-isl12022.c @@ -15,6 +15,7 @@ #include #include #include +#include #define DRV_VERSION "0.1" diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index 60627a764514..768e2edb9678 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -14,6 +14,7 @@ #include #include #include +#include #define RTC_TIME_REG_OFFS 0 diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c index 71bab0ef5443..2ee3bbf7e5ea 100644 --- a/drivers/rtc/rtc-pcf2123.c +++ b/drivers/rtc/rtc-pcf2123.c @@ -42,6 +42,7 @@ #include #include #include +#include #define DRV_VERSION "0.6" diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index b42c0c679266..606fdfab34e2 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -18,6 +18,7 @@ #include #include #include +#include #define DRV_VERSION "0.4.3" diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c index 368d0e63cf83..971bc8e08da6 100644 --- a/drivers/rtc/rtc-rs5c348.c +++ b/drivers/rtc/rtc-rs5c348.c @@ -23,6 +23,7 @@ #include #include #include +#include #define DRV_VERSION "0.2" diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c index 85c1b848dd72..d29f5432c6e8 100644 --- a/drivers/rtc/rtc-rs5c372.c +++ b/drivers/rtc/rtc-rs5c372.c @@ -14,6 +14,7 @@ #include #include #include +#include #define DRV_VERSION "0.6" diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index 3b943673cd3e..ed3e9b599031 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -21,6 +21,7 @@ #include #include #include +#include #define DRV_VERSION "0.1" diff --git a/drivers/rtc/rtc-tx4939.c b/drivers/rtc/rtc-tx4939.c index ec6313d15359..aac0ffed4345 100644 --- a/drivers/rtc/rtc-tx4939.c +++ b/drivers/rtc/rtc-tx4939.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c index b00aad2620d4..8c051d3179db 100644 --- a/drivers/rtc/rtc-x1205.c +++ b/drivers/rtc/rtc-x1205.c @@ -21,6 +21,7 @@ #include #include #include +#include #define DRV_VERSION "1.0.8" -- cgit v1.2.3 From 345df5126e5cf46c8ddf2ec491f1d6e17e29e645 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 10:46:24 -0400 Subject: i2c: add export.h to i2c-boardinfo.c for EXPORT_SYMBOL With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker --- drivers/i2c/i2c-boardinfo.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c index 3ca2e012e789..10274ffb66d7 100644 --- a/drivers/i2c/i2c-boardinfo.c +++ b/drivers/i2c/i2c-boardinfo.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "i2c-core.h" -- cgit v1.2.3 From 93cf5d75b9d0b703ca8f4f8f98303ad77ab20d26 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 29 Jul 2011 21:14:30 -0700 Subject: i2c: Add module.h to modular files prev. implicitly getting it These files use interfaces from linux/module.h, so they must include that file to avoid build errors when the implicit presence of module.h is removed. [with i2c-pxa-pci.c fix from Randy Dunlap ] Signed-off-by: Paul Gortmaker --- drivers/i2c/busses/i2c-pxa-pci.c | 1 + drivers/i2c/busses/i2c-sh7760.c | 1 + drivers/i2c/busses/i2c-tegra.c | 1 + 3 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-pxa-pci.c b/drivers/i2c/busses/i2c-pxa-pci.c index b73da6cd6f91..632e088760a3 100644 --- a/drivers/i2c/busses/i2c-pxa-pci.c +++ b/drivers/i2c/busses/i2c-pxa-pci.c @@ -3,6 +3,7 @@ * It does not support slave mode, the register slightly moved. This PCI * device provides three bars, every contains a single I2C controller. */ +#include #include #include #include diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c index 3cad8fecc3d3..4cd0a1d44129 100644 --- a/drivers/i2c/busses/i2c-sh7760.c +++ b/drivers/i2c/busses/i2c-sh7760.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 3c94c4a81a55..b402435e9259 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -27,6 +27,7 @@ #include #include #include +#include #include -- cgit v1.2.3 From 884b17e109d61e95ee4c652cf6873341bf1dca63 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 29 Aug 2011 17:52:39 -0400 Subject: cpuidle: Add module.h to drivers/cpuidle files as required. Signed-off-by: Paul Gortmaker --- drivers/cpuidle/cpuidle.c | 1 + drivers/cpuidle/governors/menu.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 0df014110097..becd6d99203b 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include "cpuidle.h" diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index 3600f1955e48..00275244ce2f 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -19,6 +19,7 @@ #include #include #include +#include #define BUCKETS 12 #define INTERVALS 8 -- cgit v1.2.3 From 70e522a02838e52ca007d3f183171fd9324eceb4 Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Mon, 29 Aug 2011 17:52:39 -0400 Subject: cpuidle: ladder.c needs module.h and not just moduleparam.h This file has module_init/exit and MODULE_LICENSE, and so it needs the full module.h header. Signed-off-by: Paul Gortmaker --- drivers/cpuidle/governors/ladder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c index f62fde21e962..3b8fce20f023 100644 --- a/drivers/cpuidle/governors/ladder.c +++ b/drivers/cpuidle/governors/ladder.c @@ -15,7 +15,7 @@ #include #include #include -#include +#include #include #include -- cgit v1.2.3 From 5c720d37bf5c2864cd7e834afff88321d6e4d97d Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Fri, 27 May 2011 13:23:32 -0400 Subject: cpufreq: cpufreq_stats.c is a module, and should include module.h So that we can clean up the header files and not be relying on implicit includes from device.h ---> module.h Signed-off-by: Paul Gortmaker --- drivers/cpufreq/cpufreq_stats.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index faf7c5217848..c5072a91e848 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From a6ee87790b708dc4cdd3643104417793f0d985ec Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 29 Jul 2011 16:19:26 +0100 Subject: cpufreq: Fix build of s3c64xx cpufreq driver for header change The header change has removed an implicit include of module.h, breaking the build due to the use of THIS_MODULE. Fix that. Signed-off-by: Mark Brown Signed-off-by: Paul Gortmaker --- drivers/cpufreq/s3c64xx-cpufreq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c index b8d1d205e1ef..3475f65aeec6 100644 --- a/drivers/cpufreq/s3c64xx-cpufreq.c +++ b/drivers/cpufreq/s3c64xx-cpufreq.c @@ -15,6 +15,7 @@ #include #include #include +#include static struct clk *armclk; static struct regulator *vddarm; -- cgit v1.2.3 From a8a359318530a779c8d28d86357d492adead5b1f Mon Sep 17 00:00:00 2001 From: Paul Gortmaker Date: Sun, 10 Jul 2011 13:20:26 -0400 Subject: video: Add export.h for THIS_MODULE/EXPORT_SYMBOL to drivers/video With module.h being implicitly everywhere via device.h, the absence of explicitly including something for EXPORT_SYMBOL went unnoticed. Since we are heading to fix things up and clean module.h from the device.h file, we need to explicitly include these files now. Signed-off-by: Paul Gortmaker --- drivers/video/fb_notify.c | 1 + drivers/video/mb862xx/mb862xx-i2c.c | 1 + drivers/video/msm/mdp.c | 1 + drivers/video/omap2/dss/dispc.c | 1 + drivers/video/omap2/dss/dpi.c | 1 + drivers/video/omap2/dss/dss.c | 1 + drivers/video/omap2/dss/rfbi.c | 1 + drivers/video/omap2/dss/sdi.c | 1 + drivers/video/omap2/omapfb/omapfb-ioctl.c | 1 + drivers/video/via/via-gpio.c | 1 + 10 files changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/video/fb_notify.c b/drivers/video/fb_notify.c index 8c020389e4fa..74c2da528884 100644 --- a/drivers/video/fb_notify.c +++ b/drivers/video/fb_notify.c @@ -12,6 +12,7 @@ */ #include #include +#include static BLOCKING_NOTIFIER_HEAD(fb_notifier_list); diff --git a/drivers/video/mb862xx/mb862xx-i2c.c b/drivers/video/mb862xx/mb862xx-i2c.c index 934081d2b7ae..273769bb8deb 100644 --- a/drivers/video/mb862xx/mb862xx-i2c.c +++ b/drivers/video/mb862xx/mb862xx-i2c.c @@ -13,6 +13,7 @@ #include #include #include +#include #include "mb862xxfb.h" #include "mb862xx_reg.h" diff --git a/drivers/video/msm/mdp.c b/drivers/video/msm/mdp.c index b9344772bac9..cb2ddf164c98 100644 --- a/drivers/video/msm/mdp.c +++ b/drivers/video/msm/mdp.c @@ -28,6 +28,7 @@ #include #include #include +#include #include "mdp_hw.h" diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 6892cfd2e3b7..3532782551cb 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c index 483888a85cfd..976ac23dcd0c 100644 --- a/drivers/video/omap2/dss/dpi.c +++ b/drivers/video/omap2/dss/dpi.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index 3e09726d32c7..17033457ee89 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c index 1bd3703e42ff..1130c608a561 100644 --- a/drivers/video/omap2/dss/rfbi.c +++ b/drivers/video/omap2/dss/rfbi.c @@ -24,6 +24,7 @@ #include #include +#include #include #include #include diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c index 695dc04cabba..40305ad7841e 100644 --- a/drivers/video/omap2/dss/sdi.c +++ b/drivers/video/omap2/dss/sdi.c @@ -23,6 +23,7 @@ #include #include #include +#include #include