From b358c6cf029cb67b3ed9cc367fb46f1fa3228c5b Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 30 Apr 2013 10:44:51 +0300 Subject: fbdev/ps3fb: fix compile warning Commit 11bd5933abe0 ("fbdev/ps3fb: use vm_iomap_memory()") introduced the following warning: drivers/video/ps3fb.c: In function 'ps3fb_mmap': drivers/video/ps3fb.c:712:2: warning: suggest parentheses around '+' inside '<<' [-Wparentheses] Fix this by adding the parentheses. Signed-off-by: Tomi Valkeinen --- drivers/video/ps3fb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c index d9f08c653d62..dbfe2c18a434 100644 --- a/drivers/video/ps3fb.c +++ b/drivers/video/ps3fb.c @@ -710,7 +710,7 @@ static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma) r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len); dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n", - info->fix.smem_start + vma->vm_pgoff << PAGE_SHIFT, + info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT), vma->vm_start); return r; -- cgit v1.2.3 From 31d6eebf7e079cfb5e98e65d5af4c6de093e076c Mon Sep 17 00:00:00 2001 From: "Robert P. J. Day" Date: Thu, 2 May 2013 10:19:11 -0400 Subject: regulator: Fix kernel-doc generation warnings. Add a couple kernel-doc lines to get rid of kernel-doc generation warnings, no functional change. Signed-off-by: Robert P. J. Day Signed-off-by: Mark Brown --- drivers/regulator/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6e5017841582..014c92a5434d 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1539,7 +1539,10 @@ static void regulator_ena_gpio_free(struct regulator_dev *rdev) } /** - * Balance enable_count of each GPIO and actual GPIO pin control. + * regulator_ena_gpio_ctrl - balance enable_count of each GPIO and actual GPIO pin control + * @rdev: regulator_dev structure + * @enable: enable GPIO at initial use? + * * GPIO is enabled in case of initial use. (enable_count is 0) * GPIO is disabled when it is not shared any more. (enable_count <= 1) */ -- cgit v1.2.3 From 3d75095a533aa3bbad652369ffde4c129781b8ec Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 8 May 2013 16:35:10 +0530 Subject: regulator: dbx500: Make local symbol static power_state_active_get is used only in this file. Make it static. While at it also move this function definition inside the CONFIG_REGULATOR_DEBUG macro as it is called only from within it. This also avoids further build warning related to unused definition. Signed-off-by: Sachin Kamat Signed-off-by: Mark Brown --- drivers/regulator/dbx500-prcmu.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/regulator/dbx500-prcmu.c b/drivers/regulator/dbx500-prcmu.c index 89bd2faaef8c..ce89f7848a57 100644 --- a/drivers/regulator/dbx500-prcmu.c +++ b/drivers/regulator/dbx500-prcmu.c @@ -24,18 +24,6 @@ static int power_state_active_cnt; /* will initialize to zero */ static DEFINE_SPINLOCK(power_state_active_lock); -int power_state_active_get(void) -{ - unsigned long flags; - int cnt; - - spin_lock_irqsave(&power_state_active_lock, flags); - cnt = power_state_active_cnt; - spin_unlock_irqrestore(&power_state_active_lock, flags); - - return cnt; -} - void power_state_active_enable(void) { unsigned long flags; @@ -65,6 +53,18 @@ out: #ifdef CONFIG_REGULATOR_DEBUG +static int power_state_active_get(void) +{ + unsigned long flags; + int cnt; + + spin_lock_irqsave(&power_state_active_lock, flags); + cnt = power_state_active_cnt; + spin_unlock_irqrestore(&power_state_active_lock, flags); + + return cnt; +} + static struct ux500_regulator_debug { struct dentry *dir; struct dentry *status_file; -- cgit v1.2.3 From d51df2c5d3c1f2c639708fc644ed67296bb51dc5 Mon Sep 17 00:00:00 2001 From: Seiji Aguchi Date: Fri, 10 May 2013 20:45:36 +0000 Subject: efivar: fix oops in efivar_update_sysfs_entries() caused by memory reuse The loop in efivar_update_sysfs_entries() reuses the same allocation for entries each time it calls efivar_create_sysfs_entry(entry). This is wrong because efivar_create_sysfs_entry() expects to keep the memory it was passed, so the caller may not free it (and may not pass the same memory in multiple times). This leads to the oops below. Fix by getting a new allocation each time we go around the loop. ---[ end trace ba4907d5c519d111 ]--- BUG: unable to handle kernel NULL pointer dereference at (null) IP: [] efivar_entry_find+0x14f/0x2d0 PGD 0 Oops: 0000 [#2] SMP Modules linked in: oops(OF+) ebtable_nat ebtables xt_CHECKSUM [...] CPU: 0 PID: 301 Comm: kworker/0:2 Tainted: GF D O 3.9.0+ #1 Hardware name: LENOVO 4291EV7/4291EV7, BIOS 8DET52WW (1.22 ) 09/15/2011 Workqueue: events efivar_update_sysfs_entries task: ffff8801955920c0 ti: ffff88019413e000 task.ti: ffff88019413e000 RIP: 0010:[] [] efivar_entry_find+0x14f/0x2d0 RSP: 0018:ffff88019413fa48 EFLAGS: 00010006 RAX: 0000000000000000 RBX: ffff880195d87c00 RCX: ffffffff81ab6f60 RDX: ffff88019413fb88 RSI: 0000000000000400 RDI: ffff880196254000 RBP: ffff88019413fbd8 R08: 0000000000000000 R09: ffff8800dad99037 R10: ffff880195d87c00 R11: 0000000000000430 R12: ffffffff81ab6f60 R13: fffffffffffff7d8 R14: ffff880196254000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88019e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000001a0b000 CR4: 00000000000407f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Stack: ffff88019413fb78 ffff88019413fb88 ffffffff81e85d60 03000000972b5c00 ffff88019413fa29 ffffffff81e85d60 ffff88019413fbfb 0000000197087280 00000000000000fe 0000000000000001 ffffffff81e85dd9 ffff880197087280 Call Trace: [] ? idr_get_empty_slot+0x131/0x240 [] ? put_dec+0x72/0x90 [] ? cache_alloc_refill+0x170/0x2f0 [] efivar_update_sysfs_entry+0x150/0x220 [] ? efi_call2+0x9/0x70 [] ? virt_efi_get_next_variable+0x47/0x1b0 [] ? kmem_cache_alloc_trace+0x1af/0x1c0 [] efivar_init+0x2c3/0x380 [] ? efivar_delete+0xd0/0xd0 [] efivar_update_sysfs_entries+0x6f/0x90 [] process_one_work+0x183/0x490 [] worker_thread+0x120/0x3a0 [] ? manage_workers+0x160/0x160 [] kthread+0xce/0xe0 [] ? kthread_freezable_should_stop+0x70/0x70 [] ret_from_fork+0x7c/0xb0 [] ? kthread_freezable_should_stop+0x70/0x70 Code: 8d 55 b0 48 8d 45 a0 49 81 ed 28 08 00 00 48 89 95 78 fe [...] RIP [] efivar_entry_find+0x14f/0x2d0 RSP CR2: 0000000000000000 ---[ end trace ba4907d5c519d112 ]--- Cc: James Bottomley Cc: Tomoki Sekiyama Signed-off-by: Seiji Aguchi Signed-off-by: Matt Fleming --- drivers/firmware/efi/efivars.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c index b623c599e572..8bd1bb6dbe47 100644 --- a/drivers/firmware/efi/efivars.c +++ b/drivers/firmware/efi/efivars.c @@ -523,13 +523,11 @@ static void efivar_update_sysfs_entries(struct work_struct *work) struct efivar_entry *entry; int err; - entry = kzalloc(sizeof(*entry), GFP_KERNEL); - if (!entry) - return; - /* Add new sysfs entries */ while (1) { - memset(entry, 0, sizeof(*entry)); + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return; err = efivar_init(efivar_update_sysfs_entry, entry, true, false, &efivar_sysfs_list); -- cgit v1.2.3 From 286233e604d79f0c7fa04abec2180d5d89a74749 Mon Sep 17 00:00:00 2001 From: Horia Geanta Date: Fri, 10 May 2013 15:08:39 +0300 Subject: crypto: caam - fix inconsistent assoc dma mapping direction req->assoc is dma mapped BIDIRECTIONAL and unmapped TO_DEVICE. Since it is read-only for the device, use TO_DEVICE both for mapping and unmapping. Cc: # 3.9, 3.8 Signed-off-by: Horia Geanta Signed-off-by: Herbert Xu --- drivers/crypto/caam/caamalg.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c index 765fdf5ce579..bf416a8391a7 100644 --- a/drivers/crypto/caam/caamalg.c +++ b/drivers/crypto/caam/caamalg.c @@ -1154,7 +1154,7 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req, dst_nents = sg_count(req->dst, req->cryptlen, &dst_chained); sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1, - DMA_BIDIRECTIONAL, assoc_chained); + DMA_TO_DEVICE, assoc_chained); if (likely(req->src == req->dst)) { sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1, DMA_BIDIRECTIONAL, src_chained); @@ -1336,7 +1336,7 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request dst_nents = sg_count(req->dst, req->cryptlen, &dst_chained); sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1, - DMA_BIDIRECTIONAL, assoc_chained); + DMA_TO_DEVICE, assoc_chained); if (likely(req->src == req->dst)) { sgc = dma_map_sg_chained(jrdev, req->src, src_nents ? : 1, DMA_BIDIRECTIONAL, src_chained); -- cgit v1.2.3 From 8c3d3d4b12bf8de8c59fe1eb1bf866a8676ca309 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 14 May 2013 11:09:50 -0700 Subject: libata: update "Maintained by:" tags Jeff moved on to a greener pasture. s/Maintained by: Jeff Garzik/Maintained by: Tejun Heo/g Signed-off-by: Tejun Heo Cc: Jeff Garzik --- drivers/ata/acard-ahci.c | 2 +- drivers/ata/ahci.c | 2 +- drivers/ata/ahci.h | 2 +- drivers/ata/ata_piix.c | 2 +- drivers/ata/libahci.c | 2 +- drivers/ata/libata-core.c | 2 +- drivers/ata/libata-eh.c | 2 +- drivers/ata/libata-scsi.c | 2 +- drivers/ata/libata-sff.c | 2 +- drivers/ata/pdc_adma.c | 2 +- drivers/ata/sata_promise.c | 2 +- drivers/ata/sata_sil.c | 2 +- drivers/ata/sata_sx4.c | 2 +- drivers/ata/sata_via.c | 2 +- 14 files changed, 14 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/acard-ahci.c b/drivers/ata/acard-ahci.c index 4e94ba29cb8d..9d0cf019ce59 100644 --- a/drivers/ata/acard-ahci.c +++ b/drivers/ata/acard-ahci.c @@ -2,7 +2,7 @@ /* * acard-ahci.c - ACard AHCI SATA support * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 251e57d38942..21808766140a 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1,7 +1,7 @@ /* * ahci.c - AHCI SATA support * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index b830e6c9fe49..10b14d45cfd2 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -1,7 +1,7 @@ /* * ahci.h - Common AHCI SATA definitions and declarations * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 2f48123d74c4..26bda6ed9a00 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -1,7 +1,7 @@ /* * ata_piix.c - Intel PATA/SATA controllers * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 34c82167b962..a70ff154f586 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -1,7 +1,7 @@ /* * libahci.c - Common AHCI SATA low-level routines * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 63c743baf920..d35524c33905 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1,7 +1,7 @@ /* * libata-core.c - helper library for ATA * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index f9476fb3ac43..c69fcce505c0 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -1,7 +1,7 @@ /* * libata-eh.c - libata error handling * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index dd310b27b24c..0101af541436 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -1,7 +1,7 @@ /* * libata-scsi.c - helper library for ATA * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index d8af325a6bda..b603720b877d 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1,7 +1,7 @@ /* * libata-sff.c - helper library for PCI IDE BMDMA * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c index 505333340ad5..8ea6e6afd041 100644 --- a/drivers/ata/pdc_adma.c +++ b/drivers/ata/pdc_adma.c @@ -1,7 +1,7 @@ /* * pdc_adma.c - Pacific Digital Corporation ADMA * - * Maintained by: Mark Lord + * Maintained by: Tejun Heo * * Copyright 2005 Mark Lord * diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c index fb0dd87f8893..958ba2a420c3 100644 --- a/drivers/ata/sata_promise.c +++ b/drivers/ata/sata_promise.c @@ -1,7 +1,7 @@ /* * sata_promise.c - Promise SATA * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Mikael Pettersson * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c index a7b31672c4b7..0ae3ca4bf5c0 100644 --- a/drivers/ata/sata_sil.c +++ b/drivers/ata/sata_sil.c @@ -1,7 +1,7 @@ /* * sata_sil.c - Silicon Image SATA * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c index 7b7127a58f51..9947010afc0f 100644 --- a/drivers/ata/sata_sx4.c +++ b/drivers/ata/sata_sx4.c @@ -1,7 +1,7 @@ /* * sata_sx4.c - Promise SATA * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 5913ea9d57b2..87f056e54a9d 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -1,7 +1,7 @@ /* * sata_via.c - VIA Serial ATA controllers * - * Maintained by: Jeff Garzik + * Maintained by: Tejun Heo * Please ALWAYS copy linux-ide@vger.kernel.org * on emails. * -- cgit v1.2.3 From fca8c90d519dedd4f4b19901d005c243f7f0bf2e Mon Sep 17 00:00:00 2001 From: "Chew, Chiau Ee" Date: Thu, 16 May 2013 15:33:29 +0800 Subject: ata_piix: add PCI IDs for Intel BayTail Adds IDE-mode SATA Device IDs for the Intel BayTrail platform. Signed-off-by: Chew, Chiau Ee Signed-off-by: Artem Bityutskiy Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- drivers/ata/ata_piix.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 26bda6ed9a00..9a8a674e8fac 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -151,6 +151,7 @@ enum piix_controller_ids { piix_pata_vmw, /* PIIX4 for VMware, spurious DMA_ERR */ ich8_sata_snb, ich8_2port_sata_snb, + ich8_2port_sata_byt, }; struct piix_map_db { @@ -334,6 +335,9 @@ static const struct pci_device_id piix_pci_tbl[] = { { 0x8086, 0x8d60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb }, /* SATA Controller IDE (Wellsburg) */ { 0x8086, 0x8d68, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, + /* SATA Controller IDE (BayTrail) */ + { 0x8086, 0x0F20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt }, + { 0x8086, 0x0F21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt }, { } /* terminate list */ }; @@ -441,6 +445,7 @@ static const struct piix_map_db *piix_map_db_table[] = { [tolapai_sata] = &tolapai_map_db, [ich8_sata_snb] = &ich8_map_db, [ich8_2port_sata_snb] = &ich8_2port_map_db, + [ich8_2port_sata_byt] = &ich8_2port_map_db, }; static struct pci_bits piix_enable_bits[] = { @@ -1254,6 +1259,16 @@ static struct ata_port_info piix_port_info[] = { .udma_mask = ATA_UDMA6, .port_ops = &piix_sata_ops, }, + + [ich8_2port_sata_byt] = + { + .flags = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR | PIIX_FLAG_PIO16, + .pio_mask = ATA_PIO4, + .mwdma_mask = ATA_MWDMA2, + .udma_mask = ATA_UDMA6, + .port_ops = &piix_sata_ops, + }, + }; #define AHCI_PCI_BAR 5 -- cgit v1.2.3 From be646c2d2ba8e2e56596d72633705f8286698c25 Mon Sep 17 00:00:00 2001 From: Joern Engel Date: Wed, 15 May 2013 00:44:07 -0700 Subject: target: Remove unused wait_for_tasks bit in target_wait_for_sess_cmds Drop unused transport_wait_for_tasks() check in target_wait_for_sess_cmds shutdown code, and convert tcm_qla2xxx + ib_srpt fabric drivers. Cc: Joern Engel Cc: Roland Dreier Signed-off-by: Nicholas Bellinger --- drivers/infiniband/ulp/srpt/ib_srpt.c | 2 +- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 2 +- drivers/target/target_core_transport.c | 28 +++++----------------------- 3 files changed, 7 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index b08ca7a9f76b..564024e0123a 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -2328,7 +2328,7 @@ static void srpt_release_channel_work(struct work_struct *w) se_sess = ch->sess; BUG_ON(!se_sess); - target_wait_for_sess_cmds(se_sess, 0); + target_wait_for_sess_cmds(se_sess); transport_deregister_session_configfs(se_sess); transport_deregister_session(se_sess); diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index d182c96e17ea..7a3870f385f6 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -1370,7 +1370,7 @@ static void tcm_qla2xxx_free_session(struct qla_tgt_sess *sess) dump_stack(); return; } - target_wait_for_sess_cmds(se_sess, 0); + target_wait_for_sess_cmds(se_sess); transport_deregister_session_configfs(sess->se_sess); transport_deregister_session(sess->se_sess); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 4a793362309d..311c11349aab 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2263,14 +2263,10 @@ EXPORT_SYMBOL(target_sess_cmd_list_set_waiting); /* target_wait_for_sess_cmds - Wait for outstanding descriptors * @se_sess: session to wait for active I/O - * @wait_for_tasks: Make extra transport_wait_for_tasks call */ -void target_wait_for_sess_cmds( - struct se_session *se_sess, - int wait_for_tasks) +void target_wait_for_sess_cmds(struct se_session *se_sess) { struct se_cmd *se_cmd, *tmp_cmd; - bool rc = false; list_for_each_entry_safe(se_cmd, tmp_cmd, &se_sess->sess_cmd_list, se_cmd_list) { @@ -2280,24 +2276,10 @@ void target_wait_for_sess_cmds( " %d\n", se_cmd, se_cmd->t_state, se_cmd->se_tfo->get_cmd_state(se_cmd)); - if (wait_for_tasks) { - pr_debug("Calling transport_wait_for_tasks se_cmd: %p t_state: %d," - " fabric state: %d\n", se_cmd, se_cmd->t_state, - se_cmd->se_tfo->get_cmd_state(se_cmd)); - - rc = transport_wait_for_tasks(se_cmd); - - pr_debug("After transport_wait_for_tasks se_cmd: %p t_state: %d," - " fabric state: %d\n", se_cmd, se_cmd->t_state, - se_cmd->se_tfo->get_cmd_state(se_cmd)); - } - - if (!rc) { - wait_for_completion(&se_cmd->cmd_wait_comp); - pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d" - " fabric state: %d\n", se_cmd, se_cmd->t_state, - se_cmd->se_tfo->get_cmd_state(se_cmd)); - } + wait_for_completion(&se_cmd->cmd_wait_comp); + pr_debug("After cmd_wait_comp: se_cmd: %p t_state: %d" + " fabric state: %d\n", se_cmd, se_cmd->t_state, + se_cmd->se_tfo->get_cmd_state(se_cmd)); se_cmd->se_tfo->release_cmd(se_cmd); } -- cgit v1.2.3 From d999e4db0ac409c582cb15e6b120241ed9105064 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Tue, 30 Apr 2013 23:22:34 +0200 Subject: NFC: mei_phy depends on INTEL_MEI INTEL_MEI_BUS_NFC never made it upstream, so make it depend on INTEL_MEI. Signed-off-by: Samuel Ortiz --- drivers/nfc/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig index 4775d4e61b88..74a852e4e41f 100644 --- a/drivers/nfc/Kconfig +++ b/drivers/nfc/Kconfig @@ -28,7 +28,7 @@ config NFC_WILINK config NFC_MEI_PHY tristate "MEI bus NFC device support" - depends on INTEL_MEI_BUS_NFC && NFC_HCI + depends on INTEL_MEI && NFC_HCI help This adds support to use an mei bus nfc device. Select this if you will use an HCI NFC driver for an NFC chip connected behind an -- cgit v1.2.3 From 73f3adb9b91efac04e4e7f8379a85400fc57121e Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Tue, 30 Apr 2013 23:48:50 +0200 Subject: NFC: mei_phy: Register event callback when enabling the device The callback registration starts a waiting read, so it needs to be fired everytime the device is enabled. Otherwise following writes will never get an answer back. Signed-off-by: Samuel Ortiz --- drivers/nfc/mei_phy.c | 9 +++++++++ drivers/nfc/microread/mei.c | 18 +++++------------- drivers/nfc/pn544/mei.c | 18 +++++------------- 3 files changed, 19 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/nfc/mei_phy.c b/drivers/nfc/mei_phy.c index b8f8abc422f0..1201bdbfb791 100644 --- a/drivers/nfc/mei_phy.c +++ b/drivers/nfc/mei_phy.c @@ -64,6 +64,15 @@ int nfc_mei_phy_enable(void *phy_id) return r; } + r = mei_cl_register_event_cb(phy->device, nfc_mei_event_cb, phy); + if (r) { + pr_err("MEY_PHY: Event cb registration failed\n"); + mei_cl_disable_device(phy->device); + phy->powered = 0; + + return r; + } + phy->powered = 1; return 0; diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c index 1ad044dce7b6..51d44fb18be9 100644 --- a/drivers/nfc/microread/mei.c +++ b/drivers/nfc/microread/mei.c @@ -43,24 +43,16 @@ static int microread_mei_probe(struct mei_cl_device *device, return -ENOMEM; } - r = mei_cl_register_event_cb(device, nfc_mei_event_cb, phy); - if (r) { - pr_err(MICROREAD_DRIVER_NAME ": event cb registration failed\n"); - goto err_out; - } - r = microread_probe(phy, &mei_phy_ops, LLC_NOP_NAME, MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD, &phy->hdev); - if (r < 0) - goto err_out; - - return 0; + if (r < 0) { + nfc_mei_phy_free(phy); -err_out: - nfc_mei_phy_free(phy); + return r; + } - return r; + return 0; } static int microread_mei_remove(struct mei_cl_device *device) diff --git a/drivers/nfc/pn544/mei.c b/drivers/nfc/pn544/mei.c index 1eb48848a35a..50cef3a574b5 100644 --- a/drivers/nfc/pn544/mei.c +++ b/drivers/nfc/pn544/mei.c @@ -43,24 +43,16 @@ static int pn544_mei_probe(struct mei_cl_device *device, return -ENOMEM; } - r = mei_cl_register_event_cb(device, nfc_mei_event_cb, phy); - if (r) { - pr_err(PN544_DRIVER_NAME ": event cb registration failed\n"); - goto err_out; - } - r = pn544_hci_probe(phy, &mei_phy_ops, LLC_NOP_NAME, MEI_NFC_HEADER_SIZE, 0, MEI_NFC_MAX_HCI_PAYLOAD, &phy->hdev); - if (r < 0) - goto err_out; - - return 0; + if (r < 0) { + nfc_mei_phy_free(phy); -err_out: - nfc_mei_phy_free(phy); + return r; + } - return r; + return 0; } static int pn544_mei_remove(struct mei_cl_device *device) -- cgit v1.2.3 From e3a6b14ceda0207c3405c6266e5177a85c0db044 Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Tue, 30 Apr 2013 23:50:29 +0200 Subject: NFC: mei: Do not disable MEI devices from their remove routine Enabling and disabling device is exclusively handled by the mei_phy_ops. Signed-off-by: Samuel Ortiz --- drivers/nfc/microread/mei.c | 2 -- drivers/nfc/pn544/mei.c | 2 -- 2 files changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c index 51d44fb18be9..cdf1bc53b257 100644 --- a/drivers/nfc/microread/mei.c +++ b/drivers/nfc/microread/mei.c @@ -63,8 +63,6 @@ static int microread_mei_remove(struct mei_cl_device *device) microread_remove(phy->hdev); - nfc_mei_phy_disable(phy); - nfc_mei_phy_free(phy); return 0; diff --git a/drivers/nfc/pn544/mei.c b/drivers/nfc/pn544/mei.c index 50cef3a574b5..b5d3d18179eb 100644 --- a/drivers/nfc/pn544/mei.c +++ b/drivers/nfc/pn544/mei.c @@ -63,8 +63,6 @@ static int pn544_mei_remove(struct mei_cl_device *device) pn544_hci_remove(phy->hdev); - nfc_mei_phy_disable(phy); - nfc_mei_phy_free(phy); return 0; -- cgit v1.2.3 From 1c98b4871cca4b7ce07e19f92f934d47cf7210b0 Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Mon, 13 May 2013 18:12:25 -0300 Subject: drm/i915: Adding more reserved PCI IDs for Haswell. At DDX commit Chris mentioned the tendency we have of finding out more PCI IDs only when users report. So Let's add all new reserved Haswell IDs. This patch also fix GT3 names. I'no not sending in separated patche because names are only in few comments and not in variable names. v2: Fix some mobile ids (by Paulo) References: http://bugs.freedesktop.org/show_bug.cgi?id=63701 Cc: Chris Wilson Cc: Paulo Zanoni Signed-off-by: Rodrigo Vivi Cc: stable@vger.kernel.org Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 46 +++++++++++++++++++++++++++++++---------- 1 file changed, 35 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 9ebe895c17d6..a2e4953b8e8d 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -364,40 +364,64 @@ static const struct pci_device_id pciidlist[] = { /* aka */ INTEL_VGA_DEVICE(0x016a, &intel_ivybridge_d_info), /* GT2 server */ INTEL_VGA_DEVICE(0x0402, &intel_haswell_d_info), /* GT1 desktop */ INTEL_VGA_DEVICE(0x0412, &intel_haswell_d_info), /* GT2 desktop */ - INTEL_VGA_DEVICE(0x0422, &intel_haswell_d_info), /* GT2 desktop */ + INTEL_VGA_DEVICE(0x0422, &intel_haswell_d_info), /* GT3 desktop */ INTEL_VGA_DEVICE(0x040a, &intel_haswell_d_info), /* GT1 server */ INTEL_VGA_DEVICE(0x041a, &intel_haswell_d_info), /* GT2 server */ - INTEL_VGA_DEVICE(0x042a, &intel_haswell_d_info), /* GT2 server */ + INTEL_VGA_DEVICE(0x042a, &intel_haswell_d_info), /* GT3 server */ INTEL_VGA_DEVICE(0x0406, &intel_haswell_m_info), /* GT1 mobile */ INTEL_VGA_DEVICE(0x0416, &intel_haswell_m_info), /* GT2 mobile */ INTEL_VGA_DEVICE(0x0426, &intel_haswell_m_info), /* GT2 mobile */ + INTEL_VGA_DEVICE(0x040B, &intel_haswell_d_info), /* GT1 reserved */ + INTEL_VGA_DEVICE(0x041B, &intel_haswell_d_info), /* GT2 reserved */ + INTEL_VGA_DEVICE(0x042B, &intel_haswell_d_info), /* GT3 reserved */ + INTEL_VGA_DEVICE(0x040E, &intel_haswell_d_info), /* GT1 reserved */ + INTEL_VGA_DEVICE(0x041E, &intel_haswell_d_info), /* GT2 reserved */ + INTEL_VGA_DEVICE(0x042E, &intel_haswell_d_info), /* GT3 reserved */ INTEL_VGA_DEVICE(0x0C02, &intel_haswell_d_info), /* SDV GT1 desktop */ INTEL_VGA_DEVICE(0x0C12, &intel_haswell_d_info), /* SDV GT2 desktop */ - INTEL_VGA_DEVICE(0x0C22, &intel_haswell_d_info), /* SDV GT2 desktop */ + INTEL_VGA_DEVICE(0x0C22, &intel_haswell_d_info), /* SDV GT3 desktop */ INTEL_VGA_DEVICE(0x0C0A, &intel_haswell_d_info), /* SDV GT1 server */ INTEL_VGA_DEVICE(0x0C1A, &intel_haswell_d_info), /* SDV GT2 server */ - INTEL_VGA_DEVICE(0x0C2A, &intel_haswell_d_info), /* SDV GT2 server */ + INTEL_VGA_DEVICE(0x0C2A, &intel_haswell_d_info), /* SDV GT3 server */ INTEL_VGA_DEVICE(0x0C06, &intel_haswell_m_info), /* SDV GT1 mobile */ INTEL_VGA_DEVICE(0x0C16, &intel_haswell_m_info), /* SDV GT2 mobile */ - INTEL_VGA_DEVICE(0x0C26, &intel_haswell_m_info), /* SDV GT2 mobile */ + INTEL_VGA_DEVICE(0x0C26, &intel_haswell_m_info), /* SDV GT3 mobile */ + INTEL_VGA_DEVICE(0x0C0B, &intel_haswell_d_info), /* SDV GT1 reserved */ + INTEL_VGA_DEVICE(0x0C1B, &intel_haswell_d_info), /* SDV GT2 reserved */ + INTEL_VGA_DEVICE(0x0C2B, &intel_haswell_d_info), /* SDV GT3 reserved */ + INTEL_VGA_DEVICE(0x0C0E, &intel_haswell_d_info), /* SDV GT1 reserved */ + INTEL_VGA_DEVICE(0x0C1E, &intel_haswell_d_info), /* SDV GT2 reserved */ + INTEL_VGA_DEVICE(0x0C2E, &intel_haswell_d_info), /* SDV GT3 reserved */ INTEL_VGA_DEVICE(0x0A02, &intel_haswell_d_info), /* ULT GT1 desktop */ INTEL_VGA_DEVICE(0x0A12, &intel_haswell_d_info), /* ULT GT2 desktop */ - INTEL_VGA_DEVICE(0x0A22, &intel_haswell_d_info), /* ULT GT2 desktop */ + INTEL_VGA_DEVICE(0x0A22, &intel_haswell_d_info), /* ULT GT3 desktop */ INTEL_VGA_DEVICE(0x0A0A, &intel_haswell_d_info), /* ULT GT1 server */ INTEL_VGA_DEVICE(0x0A1A, &intel_haswell_d_info), /* ULT GT2 server */ - INTEL_VGA_DEVICE(0x0A2A, &intel_haswell_d_info), /* ULT GT2 server */ + INTEL_VGA_DEVICE(0x0A2A, &intel_haswell_d_info), /* ULT GT3 server */ INTEL_VGA_DEVICE(0x0A06, &intel_haswell_m_info), /* ULT GT1 mobile */ INTEL_VGA_DEVICE(0x0A16, &intel_haswell_m_info), /* ULT GT2 mobile */ - INTEL_VGA_DEVICE(0x0A26, &intel_haswell_m_info), /* ULT GT2 mobile */ + INTEL_VGA_DEVICE(0x0A26, &intel_haswell_m_info), /* ULT GT3 mobile */ + INTEL_VGA_DEVICE(0x0A0B, &intel_haswell_d_info), /* ULT GT1 reserved */ + INTEL_VGA_DEVICE(0x0A1B, &intel_haswell_d_info), /* ULT GT2 reserved */ + INTEL_VGA_DEVICE(0x0A2B, &intel_haswell_d_info), /* ULT GT3 reserved */ + INTEL_VGA_DEVICE(0x0A0E, &intel_haswell_m_info), /* ULT GT1 reserved */ + INTEL_VGA_DEVICE(0x0A1E, &intel_haswell_m_info), /* ULT GT2 reserved */ + INTEL_VGA_DEVICE(0x0A2E, &intel_haswell_m_info), /* ULT GT3 reserved */ INTEL_VGA_DEVICE(0x0D02, &intel_haswell_d_info), /* CRW GT1 desktop */ INTEL_VGA_DEVICE(0x0D12, &intel_haswell_d_info), /* CRW GT2 desktop */ - INTEL_VGA_DEVICE(0x0D22, &intel_haswell_d_info), /* CRW GT2 desktop */ + INTEL_VGA_DEVICE(0x0D22, &intel_haswell_d_info), /* CRW GT3 desktop */ INTEL_VGA_DEVICE(0x0D0A, &intel_haswell_d_info), /* CRW GT1 server */ INTEL_VGA_DEVICE(0x0D1A, &intel_haswell_d_info), /* CRW GT2 server */ - INTEL_VGA_DEVICE(0x0D2A, &intel_haswell_d_info), /* CRW GT2 server */ + INTEL_VGA_DEVICE(0x0D2A, &intel_haswell_d_info), /* CRW GT3 server */ INTEL_VGA_DEVICE(0x0D06, &intel_haswell_m_info), /* CRW GT1 mobile */ INTEL_VGA_DEVICE(0x0D16, &intel_haswell_m_info), /* CRW GT2 mobile */ - INTEL_VGA_DEVICE(0x0D26, &intel_haswell_m_info), /* CRW GT2 mobile */ + INTEL_VGA_DEVICE(0x0D26, &intel_haswell_m_info), /* CRW GT3 mobile */ + INTEL_VGA_DEVICE(0x0D0B, &intel_haswell_d_info), /* CRW GT1 reserved */ + INTEL_VGA_DEVICE(0x0D1B, &intel_haswell_d_info), /* CRW GT2 reserved */ + INTEL_VGA_DEVICE(0x0D2B, &intel_haswell_d_info), /* CRW GT3 reserved */ + INTEL_VGA_DEVICE(0x0D0E, &intel_haswell_d_info), /* CRW GT1 reserved */ + INTEL_VGA_DEVICE(0x0D1E, &intel_haswell_d_info), /* CRW GT2 reserved */ + INTEL_VGA_DEVICE(0x0D2E, &intel_haswell_d_info), /* CRW GT3 reserved */ INTEL_VGA_DEVICE(0x0f30, &intel_valleyview_m_info), INTEL_VGA_DEVICE(0x0f31, &intel_valleyview_m_info), INTEL_VGA_DEVICE(0x0f32, &intel_valleyview_m_info), -- cgit v1.2.3 From 2d05eae1c92f93ace0fc6f282c55527d293297dd Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 3 May 2013 17:36:25 +0100 Subject: drm/i915: Propagate errors back from fb set-base Along the modesetting short cut where we skip trying to do a full modeset and instead simply update the framebuffer base registers, we failed to handle any errors reported. This regression has been introduced in commit 94352cf9a5328bb1a44288e6c2c1276695f8a356 Author: Daniel Vetter Date: Thu Jul 5 22:51:56 2012 +0200 drm/i915: push crtc->fb update into pipe_set_base Signed-off-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index efe829919755..300942a7d144 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8332,11 +8332,6 @@ static int intel_crtc_set_config(struct drm_mode_set *set) ret = intel_set_mode(set->crtc, set->mode, set->x, set->y, set->fb); - if (ret) { - DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n", - set->crtc->base.id, ret); - goto fail; - } } else if (config->fb_changed) { intel_crtc_wait_for_pending_flips(set->crtc); @@ -8344,18 +8339,18 @@ static int intel_crtc_set_config(struct drm_mode_set *set) set->x, set->y, set->fb); } - intel_set_config_free(config); - - return 0; - + if (ret) { + DRM_ERROR("failed to set mode on [CRTC:%d], err = %d\n", + set->crtc->base.id, ret); fail: - intel_set_config_restore_state(dev, config); + intel_set_config_restore_state(dev, config); - /* Try to restore the config */ - if (config->mode_changed && - intel_set_mode(save_set.crtc, save_set.mode, - save_set.x, save_set.y, save_set.fb)) - DRM_ERROR("failed to restore config after modeset failure\n"); + /* Try to restore the config */ + if (config->mode_changed && + intel_set_mode(save_set.crtc, save_set.mode, + save_set.x, save_set.y, save_set.fb)) + DRM_ERROR("failed to restore config after modeset failure\n"); + } out_config: intel_set_config_free(config); -- cgit v1.2.3 From ce0d10f887cabf9f16d1cbb60ef013021befbfdf Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 21 May 2013 15:04:07 +0100 Subject: regulator: core: Correct spelling mistake in comment Signed-off-by: Charles Keepax Signed-off-by: Mark Brown --- drivers/regulator/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 6e5017841582..5e50b20f0f96 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2702,7 +2702,7 @@ EXPORT_SYMBOL_GPL(regulator_get_voltage); /** * regulator_set_current_limit - set regulator output current limit * @regulator: regulator source - * @min_uA: Minimuum supported current in uA + * @min_uA: Minimum supported current in uA * @max_uA: Maximum supported current in uA * * Sets current sink to the desired output current. This can be set during -- cgit v1.2.3 From 95d38d144ab4520aea3f8fcfacc5fd62d3bf2697 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 8 Oct 2012 19:50:41 +0000 Subject: drm/nouveau: use drm_send_vblank_event() helper Signed-off-by: Rob Clark Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_display.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 7bf22d4a3d96..f17dc2ab03ec 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -638,17 +638,8 @@ nouveau_finish_page_flip(struct nouveau_channel *chan, } s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head); - if (s->event) { - struct drm_pending_vblank_event *e = s->event; - struct timeval now; - - do_gettimeofday(&now); - e->event.sequence = 0; - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; - list_add_tail(&e->base.link, &e->base.file_priv->event_list); - wake_up_interruptible(&e->base.file_priv->event_wait); - } + if (s->event) + drm_send_vblank_event(dev, -1, s->event); list_del(&s->head); if (ps) -- cgit v1.2.3 From 26ae466732c181b7376610fd9241787698179b01 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 8 Oct 2012 19:50:42 +0000 Subject: drm/radeon: use drm_send_vblank_event() helper Signed-off-by: Rob Clark Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_display.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index e38fd559f1ab..eb18bb7af1cc 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -271,8 +271,6 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; struct radeon_unpin_work *work; - struct drm_pending_vblank_event *e; - struct timeval now; unsigned long flags; u32 update_pending; int vpos, hpos; @@ -328,14 +326,9 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id) radeon_crtc->unpin_work = NULL; /* wakeup userspace */ - if (work->event) { - e = work->event; - e->event.sequence = drm_vblank_count_and_time(rdev->ddev, crtc_id, &now); - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; - list_add_tail(&e->base.link, &e->base.file_priv->event_list); - wake_up_interruptible(&e->base.file_priv->event_wait); - } + if (work->event) + drm_send_vblank_event(rdev->ddev, crtc_id, work->event); + spin_unlock_irqrestore(&rdev->ddev->event_lock, flags); drm_vblank_put(rdev->ddev, radeon_crtc->crtc_id); -- cgit v1.2.3 From f7e96d7e28817a66db36e89f25b77bda7dba6da0 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 8 Oct 2012 19:50:45 +0000 Subject: drm/shmob: use drm_send_vblank_event() helper Signed-off-by: Rob Clark Signed-off-by: Dave Airlie --- drivers/gpu/drm/shmobile/shmob_drm_crtc.c | 19 ++++--------------- 1 file changed, 4 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c index 7dff49ed66e7..99e2034e49cc 100644 --- a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c +++ b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c @@ -451,27 +451,16 @@ void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc) { struct drm_pending_vblank_event *event; struct drm_device *dev = scrtc->crtc.dev; - struct timeval vblanktime; unsigned long flags; spin_lock_irqsave(&dev->event_lock, flags); event = scrtc->event; scrtc->event = NULL; + if (event) { + drm_send_vblank_event(dev, 0, event); + drm_vblank_put(dev, 0); + } spin_unlock_irqrestore(&dev->event_lock, flags); - - if (event == NULL) - return; - - event->event.sequence = drm_vblank_count_and_time(dev, 0, &vblanktime); - event->event.tv_sec = vblanktime.tv_sec; - event->event.tv_usec = vblanktime.tv_usec; - - spin_lock_irqsave(&dev->event_lock, flags); - list_add_tail(&event->base.link, &event->base.file_priv->event_list); - wake_up_interruptible(&event->base.file_priv->event_wait); - spin_unlock_irqrestore(&dev->event_lock, flags); - - drm_vblank_put(dev, 0); } static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc, -- cgit v1.2.3 From 0eca56f9467038ee0b798637f03581aaa1186fac Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 8 Oct 2012 19:50:46 +0000 Subject: drm/imx: use drm_send_vblank_event() helper Also, slightly changes the behavior to always put the vblank irq, even if userspace did not request a vblank event. As far as I can tell, the previous code would leak a vblank irq refcnt if userspace requested a pageflip without event. Signed-off-by: Rob Clark Signed-off-by: Dave Airlie --- drivers/staging/imx-drm/ipuv3-crtc.c | 21 ++------------------- 1 file changed, 2 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c index b028b0d1317b..1cd74f5e4c76 100644 --- a/drivers/staging/imx-drm/ipuv3-crtc.c +++ b/drivers/staging/imx-drm/ipuv3-crtc.c @@ -311,31 +311,14 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc, static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc) { - struct drm_pending_vblank_event *e; - struct timeval now; unsigned long flags; struct drm_device *drm = ipu_crtc->base.dev; spin_lock_irqsave(&drm->event_lock, flags); - - e = ipu_crtc->page_flip_event; - if (!e) { - spin_unlock_irqrestore(&drm->event_lock, flags); - return; - } - - do_gettimeofday(&now); - e->event.sequence = 0; - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; + if (ipu_crtc->page_flip_event) + drm_send_vblank_event(drm, -1, ipu_crtc->page_flip_event); ipu_crtc->page_flip_event = NULL; - imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc); - - list_add_tail(&e->base.link, &e->base.file_priv->event_list); - - wake_up_interruptible(&e->base.file_priv->event_wait); - spin_unlock_irqrestore(&drm->event_lock, flags); } -- cgit v1.2.3 From e771451c0a831d96a7c14b0ca8a8ec671d98567b Mon Sep 17 00:00:00 2001 From: Vincent Pelletier Date: Sat, 18 May 2013 18:44:04 +0200 Subject: libata: make ata_exec_internal_sg honor DMADIR MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit libata honors DMADIR for regular commands, but not for internal commands used (among other) during device initialisation. This makes SATA-host-to-PATA-device bridges based on Silicon Image SiL3611 (such as "Abit Serillel 2") end up disabled when used with an ATAPI device after a few tries. Log output of the bridge being hot-plugged with an ATAPI drive: [ 9631.212901] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen [ 9631.212913] ata1: irq_stat 0x00000040, connection status changed [ 9631.212923] ata1: SError: { CommWake 10B8B DevExch } [ 9631.212939] ata1: hard resetting link [ 9632.104962] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 9632.106393] ata1.00: ATAPI: PIONEER DVD-RW DVR-115, 1.06, max UDMA/33 [ 9632.106407] ata1.00: applying bridge limits [ 9632.108151] ata1.00: configured for UDMA/33 [ 9637.105303] ata1.00: qc timeout (cmd 0xa0) [ 9637.105324] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5) [ 9637.105335] ata1: hard resetting link [ 9638.044599] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 9638.047878] ata1.00: configured for UDMA/33 [ 9643.044933] ata1.00: qc timeout (cmd 0xa0) [ 9643.044953] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5) [ 9643.044963] ata1: limiting SATA link speed to 1.5 Gbps [ 9643.044971] ata1.00: limiting speed to UDMA/33:PIO3 [ 9643.044979] ata1: hard resetting link [ 9643.984225] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) [ 9643.987471] ata1.00: configured for UDMA/33 [ 9648.984591] ata1.00: qc timeout (cmd 0xa0) [ 9648.984612] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5) [ 9648.984619] ata1.00: disabled [ 9649.000593] ata1: hard resetting link [ 9649.939902] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) [ 9649.955864] ata1: EH complete With this patch, the drive enumerates correctly when libata is loaded with atapi_dmadir=1: [ 9891.810863] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen [ 9891.810874] ata1: irq_stat 0x00000040, connection status changed [ 9891.810884] ata1: SError: { CommWake 10B8B DevExch } [ 9891.810900] ata1: hard resetting link [ 9892.762105] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) [ 9892.763544] ata1.00: ATAPI: PIONEER DVD-RW DVR-115, 1.06, max UDMA/33, DMADIR [ 9892.763558] ata1.00: applying bridge limits [ 9892.765393] ata1.00: configured for UDMA/33 [ 9892.786063] ata1: EH complete [ 9892.792062] scsi 0:0:0:0: CD-ROM PIONEER DVD-RW DVR-115 1.06 PQ: 0 ANSI: 5 [ 9892.798455] sr2: scsi3-mmc drive: 12x/12x writer dvd-ram cd/rw xa/form2 cdda tray [ 9892.798837] sr 0:0:0:0: Attached scsi CD-ROM sr2 [ 9892.799109] sr 0:0:0:0: Attached scsi generic sg6 type 5 Based on a patch by Csaba Halász on linux-ide: http://marc.info/?l=linux-ide&m=136121147832295&w=2 tj: minor formatting changes. Signed-off-by: Vincent Pelletier Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- drivers/ata/libata-core.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index d35524c33905..f2184276539d 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1602,6 +1602,12 @@ unsigned ata_exec_internal_sg(struct ata_device *dev, qc->tf = *tf; if (cdb) memcpy(qc->cdb, cdb, ATAPI_CDB_LEN); + + /* some SATA bridges need us to indicate data xfer direction */ + if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) && + dma_dir == DMA_FROM_DEVICE) + qc->tf.feature |= ATAPI_DMADIR; + qc->flags |= ATA_QCFLAG_RESULT_TF; qc->dma_dir = dma_dir; if (dma_dir != DMA_NONE) { -- cgit v1.2.3 From df7e131f6359f20ed8f0a37db039c4f6420a18c2 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Tue, 21 May 2013 23:07:54 +0400 Subject: sata_rcar: clear STOP bit in bmdma_start() method Iff bmdma_setup() has to stop a DMA transfer before starting a new one, then the STOP bit in the ATAPI_CONTROL1 register will remain set (it's only cleared when setting the START bit to 1) and then bmdma_start() method will set both START and STOP bits simultaneously which should abort the transfer being just started. Avoid that by explicitly clearing the STOP bit in bmdma_start() method (in this case it will be ignored on write). Signed-off-by: Sergei Shtylyov Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- drivers/ata/sata_rcar.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 4799868bd733..a8e091aafdde 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -549,6 +549,7 @@ static void sata_rcar_bmdma_start(struct ata_queued_cmd *qc) /* start host DMA transaction */ dmactl = ioread32(priv->base + ATAPI_CONTROL1_REG); + dmactl &= ~ATAPI_CONTROL1_STOP; dmactl |= ATAPI_CONTROL1_START; iowrite32(dmactl, priv->base + ATAPI_CONTROL1_REG); } -- cgit v1.2.3 From 41eab402b43f1ca3e1279595bc138f5ac2a914f7 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 29 Apr 2013 12:27:05 +0530 Subject: drm/exynos: exynos_drm_fbdev: Fix incorrect usage of IS_ERR_OR_NULL exynos_drm_framebuffer_init() does not return NULL. Use IS_ERR instead. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 68f0045f86b8..8f007aaeffc3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -182,7 +182,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd, &exynos_gem_obj->base); - if (IS_ERR_OR_NULL(helper->fb)) { + if (IS_ERR(helper->fb)) { DRM_ERROR("failed to create drm framebuffer.\n"); ret = PTR_ERR(helper->fb); goto err_destroy_gem; -- cgit v1.2.3 From f02504587ed5669cc721a1f2351322e6badfe67f Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 29 Apr 2013 12:27:06 +0530 Subject: drm/exynos: exynos_drm_ipp: Fix incorrect usage of IS_ERR_OR_NULL None of these functions actually return a NULL pointer. Hence use IS_ERR() instead. Signed-off-by: Sachin Kamat Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_ipp.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c index 29d2ad314490..5c4764af7cb9 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c @@ -222,7 +222,7 @@ static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx, /* find ipp driver using idr */ ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, ipp_id); - if (IS_ERR_OR_NULL(ippdrv)) { + if (IS_ERR(ippdrv)) { DRM_ERROR("not found ipp%d driver.\n", ipp_id); return ippdrv; } @@ -388,7 +388,7 @@ static int ipp_find_and_set_property(struct drm_exynos_ipp_property *property) DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, prop_id); ippdrv = ipp_find_drv_by_handle(prop_id); - if (IS_ERR_OR_NULL(ippdrv)) { + if (IS_ERR(ippdrv)) { DRM_ERROR("failed to get ipp driver.\n"); return -EINVAL; } @@ -492,7 +492,7 @@ int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data, /* find ipp driver using ipp id */ ippdrv = ipp_find_driver(ctx, property); - if (IS_ERR_OR_NULL(ippdrv)) { + if (IS_ERR(ippdrv)) { DRM_ERROR("failed to get ipp driver.\n"); return -EINVAL; } @@ -521,19 +521,19 @@ int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data, c_node->state = IPP_STATE_IDLE; c_node->start_work = ipp_create_cmd_work(); - if (IS_ERR_OR_NULL(c_node->start_work)) { + if (IS_ERR(c_node->start_work)) { DRM_ERROR("failed to create start work.\n"); goto err_clear; } c_node->stop_work = ipp_create_cmd_work(); - if (IS_ERR_OR_NULL(c_node->stop_work)) { + if (IS_ERR(c_node->stop_work)) { DRM_ERROR("failed to create stop work.\n"); goto err_free_start; } c_node->event_work = ipp_create_event_work(); - if (IS_ERR_OR_NULL(c_node->event_work)) { + if (IS_ERR(c_node->event_work)) { DRM_ERROR("failed to create event work.\n"); goto err_free_stop; } @@ -915,7 +915,7 @@ static int ipp_queue_buf_with_run(struct device *dev, DRM_DEBUG_KMS("%s\n", __func__); ippdrv = ipp_find_drv_by_handle(qbuf->prop_id); - if (IS_ERR_OR_NULL(ippdrv)) { + if (IS_ERR(ippdrv)) { DRM_ERROR("failed to get ipp driver.\n"); return -EFAULT; } -- cgit v1.2.3 From 4c1d8def9d5bbd642782893ccd849963f1811ae6 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 20 May 2013 19:32:06 +0200 Subject: drm/exynos: exynos_hdmi: Pass correct pointer to free_irq() free_irq() expects the same pointer that was passed to request_threaded_irq(), otherwise the IRQ is not freed. The issue was found using the following coccinelle script: @r1@ type T; T devid; @@ request_threaded_irq(..., devid) @r2@ type r1.T; T devid; position p; @@ free_irq@p(..., devid) @@ position p != r2.p; @@ *free_irq@p(...) Signed-off-by: Lars-Peter Clausen Acked-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_hdmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index bbfc3840080c..7e99853f1e18 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2082,7 +2082,7 @@ static int hdmi_remove(struct platform_device *pdev) pm_runtime_disable(dev); - free_irq(hdata->irq, hdata); + free_irq(hdata->irq, ctx); /* hdmiphy i2c driver */ -- cgit v1.2.3 From 94d019b87859bb984bd6c15db330d404eab3acaa Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Mon, 8 Oct 2012 14:50:44 -0500 Subject: drm/exynos: page flip fixes The event wouldn't be on any list at this point, so nothing to delete it from. Signed-off-by: Rob Clark Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index e8894bc9e6d5..02b36080d00b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -217,7 +217,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc, ret = drm_vblank_get(dev, exynos_crtc->pipe); if (ret) { DRM_DEBUG("failed to acquire vblank counter\n"); - list_del(&event->base.link); goto out; } -- cgit v1.2.3 From e3de42b68478a8c95dd27520e9adead2af9477a5 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 3 May 2013 19:44:07 +0200 Subject: drm/i915: force full modeset if the connector is in DPMS OFF mode Currently the driver's assumed behavior for a modeset with an attached FB is that the corresponding connector will be switched to DPMS ON mode if it happened to be in DPMS OFF (or another power save mode). This wasn't enforced though if only the FB changed, everything else (format, connector etc.) remaining the same. In this case we only set the new FB base and left the connector in the old power save mode. Fix this by forcing a full modeset whenever there is an attached FB and any affected connector is in a power save mode. V_2: Run the test for encoders in power save mode outside the the test for fb change: user space may have just disabled the encoders but left everything else in place. Make sure the connector list is not empty before running this test. Signed-off-by: Imre Deak Signed-off-by: Egbert Eich Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61642 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59834 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=59339 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64178 Acked-by: Jesse Barnes [danvet: Apply Jani's s/connector_off/is_crtc_connector_off bikeshed.] Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 300942a7d144..ad1117bebd7e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8140,6 +8140,21 @@ static void intel_set_config_restore_state(struct drm_device *dev, } } +static bool +is_crtc_connector_off(struct drm_crtc *crtc, struct drm_connector *connectors, + int num_connectors) +{ + int i; + + for (i = 0; i < num_connectors; i++) + if (connectors[i].encoder && + connectors[i].encoder->crtc == crtc && + connectors[i].dpms != DRM_MODE_DPMS_ON) + return true; + + return false; +} + static void intel_set_config_compute_mode_changes(struct drm_mode_set *set, struct intel_set_config *config) @@ -8147,7 +8162,11 @@ intel_set_config_compute_mode_changes(struct drm_mode_set *set, /* We should be able to check here if the fb has the same properties * and then just flip_or_move it */ - if (set->crtc->fb != set->fb) { + if (set->connectors != NULL && + is_crtc_connector_off(set->crtc, *set->connectors, + set->num_connectors)) { + config->mode_changed = true; + } else if (set->crtc->fb != set->fb) { /* If we have no fb then treat it as a full mode set */ if (set->crtc->fb == NULL) { DRM_DEBUG_KMS("crtc has no fb, full mode set\n"); @@ -8157,8 +8176,9 @@ intel_set_config_compute_mode_changes(struct drm_mode_set *set, } else if (set->fb->pixel_format != set->crtc->fb->pixel_format) { config->mode_changed = true; - } else + } else { config->fb_changed = true; + } } if (set->fb && (set->x != set->crtc->x || set->y != set->crtc->y)) -- cgit v1.2.3 From df97729f1bcb5055ba414f08b48364d46c6baef0 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 21 May 2013 20:03:17 +0300 Subject: drm/i915: add msecs_to_jiffies_timeout to guarantee minimum duration We need this to avoid premature timeouts whenever scheduling a timeout based on the current jiffies value. For an explanation see [1]. The following patches will take the helper into use. Once the more generic solution proposed in the thread at [1] is accepted this patch can be reverted while keeping the follow-up patches. [1] http://marc.info/?l=linux-kernel&m=136854294730957&w=2 Signed-off-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d5dcf7fe1ee9..b9d00dcf9a2d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1943,4 +1943,19 @@ static inline void __user *to_user_ptr(u64 address) return (void __user *)(uintptr_t)address; } +static inline unsigned long msecs_to_jiffies_timeout(const unsigned int m) +{ + unsigned long j = msecs_to_jiffies(m); + + return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); +} + +static inline unsigned long +timespec_to_jiffies_timeout(const struct timespec *value) +{ + unsigned long j = timespec_to_jiffies(value); + + return min_t(unsigned long, MAX_JIFFY_OFFSET, j + 1); +} + #endif -- cgit v1.2.3 From 2554fc1fa6dc184ca553f73e3796fa59745efa8a Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 21 May 2013 20:03:18 +0300 Subject: drm/i915: use msecs_to_jiffies_timeout instead of open coding the same Signed-off-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_i2c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index 5d245031e391..98cd85352d9a 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -228,7 +228,7 @@ gmbus_wait_hw_status(struct drm_i915_private *dev_priv, * need to wake up periodically and check that ourselves. */ I915_WRITE(GMBUS4 + reg_offset, gmbus4_irq_en); - for (i = 0; i < msecs_to_jiffies(50) + 1; i++) { + for (i = 0; i < msecs_to_jiffies_timeout(50); i++) { prepare_to_wait(&dev_priv->gmbus_wait_queue, &wait, TASK_UNINTERRUPTIBLE); -- cgit v1.2.3 From e054cc3937a4a58e77870d4c922a7b21824b610a Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 21 May 2013 20:03:19 +0300 Subject: drm/i915: avoid premature timeouts in __wait_seqno() At the moment wait_event_timeout/wait_event_interruptible_timeout may time out 1 jiffy too early, as the calculated expiry time is 1 less than needed. Besides timing out too early this also means that the calculation of the remaining time will be incorrect and we will pass a non-zero remaining time to user space in case of a time out. This is one reason for the following bugzilla report: Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64270 Signed-off-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6165535d15f0..a6cf8e843973 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1003,7 +1003,7 @@ static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno, wait_forever = false; } - timeout_jiffies = timespec_to_jiffies(&wait_time); + timeout_jiffies = timespec_to_jiffies_timeout(&wait_time); if (WARN_ON(!ring->irq_get(ring))) return -ENODEV; -- cgit v1.2.3 From 3598706b52cb45ba0a9e8aa99ce5ac59140f2b8b Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Tue, 21 May 2013 20:03:20 +0300 Subject: drm/i915: avoid premature DP AUX timeouts During DP AUX communication we might time out 1 jiffy too early, because the calculated expiry jiffy value is one less than needed. This is only one reason for false DP AUX timeouts. For a complete solution we also need the following fix, which is now queued for mainline: http://marc.info/?l=linux-kernel&m=136748515710837&w=2 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64133 Signed-off-by: Imre Deak Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 2 +- drivers/gpu/drm/i915/intel_i2c.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 3d704b706a8d..70789b1b5642 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -303,7 +303,7 @@ intel_dp_aux_wait_done(struct intel_dp *intel_dp, bool has_aux_irq) #define C (((status = I915_READ_NOTRACE(ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0) if (has_aux_irq) done = wait_event_timeout(dev_priv->gmbus_wait_queue, C, - msecs_to_jiffies(10)); + msecs_to_jiffies_timeout(10)); else done = wait_for_atomic(C, 10) == 0; if (!done) diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c index 98cd85352d9a..639fe192997c 100644 --- a/drivers/gpu/drm/i915/intel_i2c.c +++ b/drivers/gpu/drm/i915/intel_i2c.c @@ -263,7 +263,8 @@ gmbus_wait_idle(struct drm_i915_private *dev_priv) /* Important: The hw handles only the first bit, so set only one! */ I915_WRITE(GMBUS4 + reg_offset, GMBUS_IDLE_EN); - ret = wait_event_timeout(dev_priv->gmbus_wait_queue, C, 10); + ret = wait_event_timeout(dev_priv->gmbus_wait_queue, C, + msecs_to_jiffies_timeout(10)); I915_WRITE(GMBUS4 + reg_offset, 0); -- cgit v1.2.3 From 08c96abd611beadf2af414a306fe0fb02ba706ff Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 18 May 2013 21:28:15 +0200 Subject: ath9k: prevent aggregation session deadlocks Waiting for all subframes of an existing aggregation session to drain before allowing mac80211 to start a new one is fragile and deadlocks caused by this behavior have been observed. Since mac80211 has proper synchronization for aggregation session start/stop handling, a better approach to session handling is to simply allow mac80211 to start a new session at any time. This requires changing the code to discard any packets outside of the BlockAck window in the A-MPDU software retry code. This patch implements the above and also simplifies the code. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 14 +--- drivers/net/wireless/ath/ath9k/main.c | 3 +- drivers/net/wireless/ath/ath9k/rc.c | 5 +- drivers/net/wireless/ath/ath9k/xmit.c | 138 ++++++++++----------------------- 4 files changed, 46 insertions(+), 114 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 366002f266f8..42b03dc39d14 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -251,10 +251,9 @@ struct ath_atx_tid { int tidno; int baw_head; /* first un-acked tx buffer */ int baw_tail; /* next unused tx buffer slot */ - int sched; - int paused; - u8 state; - bool stop_cb; + bool sched; + bool paused; + bool active; }; struct ath_node { @@ -275,10 +274,6 @@ struct ath_node { #endif }; -#define AGGR_CLEANUP BIT(1) -#define AGGR_ADDBA_COMPLETE BIT(2) -#define AGGR_ADDBA_PROGRESS BIT(3) - struct ath_tx_control { struct ath_txq *txq; struct ath_node *an; @@ -352,8 +347,7 @@ void ath_tx_tasklet(struct ath_softc *sc); void ath_tx_edma_tasklet(struct ath_softc *sc); int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn); -bool ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, - bool flush); +void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 2382d1262e7f..5092ecae7706 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1709,7 +1709,8 @@ static int ath9k_ampdu_action(struct ieee80211_hw *hw, flush = true; case IEEE80211_AMPDU_TX_STOP_CONT: ath9k_ps_wakeup(sc); - if (ath_tx_aggr_stop(sc, sta, tid, flush)) + ath_tx_aggr_stop(sc, sta, tid); + if (!flush) ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); ath9k_ps_restore(sc); break; diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index aa4d368d8d3d..7eb1f4b458e4 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -1227,10 +1227,7 @@ static bool ath_tx_aggr_check(struct ath_softc *sc, struct ieee80211_sta *sta, return false; txtid = ATH_AN_2_TID(an, tidno); - - if (!(txtid->state & (AGGR_ADDBA_COMPLETE | AGGR_ADDBA_PROGRESS))) - return true; - return false; + return !txtid->active; } diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 14bb3354ea64..1c9b1bac8b0d 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -125,24 +125,6 @@ static void ath_tx_queue_tid(struct ath_txq *txq, struct ath_atx_tid *tid) list_add_tail(&ac->list, &txq->axq_acq); } -static void ath_tx_resume_tid(struct ath_softc *sc, struct ath_atx_tid *tid) -{ - struct ath_txq *txq = tid->ac->txq; - - WARN_ON(!tid->paused); - - ath_txq_lock(sc, txq); - tid->paused = false; - - if (skb_queue_empty(&tid->buf_q)) - goto unlock; - - ath_tx_queue_tid(txq, tid); - ath_txq_schedule(sc, txq); -unlock: - ath_txq_unlock_complete(sc, txq); -} - static struct ath_frame_info *get_frame_info(struct sk_buff *skb) { struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); @@ -164,20 +146,7 @@ static void ath_set_rates(struct ieee80211_vif *vif, struct ieee80211_sta *sta, ARRAY_SIZE(bf->rates)); } -static void ath_tx_clear_tid(struct ath_softc *sc, struct ath_atx_tid *tid) -{ - tid->state &= ~AGGR_ADDBA_COMPLETE; - tid->state &= ~AGGR_CLEANUP; - if (!tid->stop_cb) - return; - - ieee80211_start_tx_ba_cb_irqsafe(tid->an->vif, tid->an->sta->addr, - tid->tidno); - tid->stop_cb = false; -} - -static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid, - bool flush_packets) +static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid) { struct ath_txq *txq = tid->ac->txq; struct sk_buff *skb; @@ -194,15 +163,16 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid, while ((skb = __skb_dequeue(&tid->buf_q))) { fi = get_frame_info(skb); bf = fi->bf; - if (!bf && !flush_packets) - bf = ath_tx_setup_buffer(sc, txq, tid, skb); if (!bf) { - ieee80211_free_txskb(sc->hw, skb); - continue; + bf = ath_tx_setup_buffer(sc, txq, tid, skb); + if (!bf) { + ieee80211_free_txskb(sc->hw, skb); + continue; + } } - if (fi->retries || flush_packets) { + if (fi->retries) { list_add_tail(&bf->list, &bf_head); ath_tx_update_baw(sc, tid, bf->bf_state.seqno); ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0); @@ -213,10 +183,7 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid, } } - if (tid->baw_head == tid->baw_tail) - ath_tx_clear_tid(sc, tid); - - if (sendbar && !flush_packets) { + if (sendbar) { ath_txq_unlock(sc, txq); ath_send_bar(tid, tid->seq_start); ath_txq_lock(sc, txq); @@ -499,19 +466,19 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, tx_info = IEEE80211_SKB_CB(skb); fi = get_frame_info(skb); - if (ATH_BA_ISSET(ba, ATH_BA_INDEX(seq_st, seqno))) { + if (!BAW_WITHIN(tid->seq_start, tid->baw_size, seqno)) { + /* + * Outside of the current BlockAck window, + * maybe part of a previous session + */ + txfail = 1; + } else if (ATH_BA_ISSET(ba, ATH_BA_INDEX(seq_st, seqno))) { /* transmit completion, subframe is * acked by block ack */ acked_cnt++; } else if (!isaggr && txok) { /* transmit completion */ acked_cnt++; - } else if (tid->state & AGGR_CLEANUP) { - /* - * cleanup in progress, just fail - * the un-acked sub-frames - */ - txfail = 1; } else if (flush) { txpending = 1; } else if (fi->retries < ATH_MAX_SW_RETRIES) { @@ -535,7 +502,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, if (bf_next != NULL || !bf_last->bf_stale) list_move_tail(&bf->list, &bf_head); - if (!txpending || (tid->state & AGGR_CLEANUP)) { + if (!txpending) { /* * complete the acked-ones/xretried ones; update * block-ack window @@ -609,9 +576,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq, ath_txq_lock(sc, txq); } - if (tid->state & AGGR_CLEANUP) - ath_tx_flush_tid(sc, tid, false); - rcu_read_unlock(); if (needreset) @@ -1244,9 +1208,6 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, an = (struct ath_node *)sta->drv_priv; txtid = ATH_AN_2_TID(an, tid); - if (txtid->state & (AGGR_CLEANUP | AGGR_ADDBA_COMPLETE)) - return -EAGAIN; - /* update ampdu factor/density, they may have changed. This may happen * in HT IBSS when a beacon with HT-info is received after the station * has already been added. @@ -1258,7 +1219,7 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, an->mpdudensity = density; } - txtid->state |= AGGR_ADDBA_PROGRESS; + txtid->active = true; txtid->paused = true; *ssn = txtid->seq_start = txtid->seq_next; txtid->bar_index = -1; @@ -1269,45 +1230,17 @@ int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, return 0; } -bool ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, - bool flush) +void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) { struct ath_node *an = (struct ath_node *)sta->drv_priv; struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid); struct ath_txq *txq = txtid->ac->txq; - bool ret = !flush; - - if (flush) - txtid->stop_cb = false; - - if (txtid->state & AGGR_CLEANUP) - return false; - - if (!(txtid->state & AGGR_ADDBA_COMPLETE)) { - txtid->state &= ~AGGR_ADDBA_PROGRESS; - return ret; - } ath_txq_lock(sc, txq); + txtid->active = false; txtid->paused = true; - - /* - * If frames are still being transmitted for this TID, they will be - * cleaned up during tx completion. To prevent race conditions, this - * TID can only be reused after all in-progress subframes have been - * completed. - */ - if (txtid->baw_head != txtid->baw_tail) { - txtid->state |= AGGR_CLEANUP; - ret = false; - txtid->stop_cb = !flush; - } else { - txtid->state &= ~AGGR_ADDBA_COMPLETE; - } - - ath_tx_flush_tid(sc, txtid, flush); + ath_tx_flush_tid(sc, txtid); ath_txq_unlock_complete(sc, txq); - return ret; } void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc, @@ -1371,18 +1304,28 @@ void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an) } } -void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid) +void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, + u16 tidno) { - struct ath_atx_tid *txtid; + struct ath_atx_tid *tid; struct ath_node *an; + struct ath_txq *txq; an = (struct ath_node *)sta->drv_priv; + tid = ATH_AN_2_TID(an, tidno); + txq = tid->ac->txq; - txtid = ATH_AN_2_TID(an, tid); - txtid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor; - txtid->state |= AGGR_ADDBA_COMPLETE; - txtid->state &= ~AGGR_ADDBA_PROGRESS; - ath_tx_resume_tid(sc, txtid); + ath_txq_lock(sc, txq); + + tid->baw_size = IEEE80211_MIN_AMPDU_BUF << sta->ht_cap.ampdu_factor; + tid->paused = false; + + if (!skb_queue_empty(&tid->buf_q)) { + ath_tx_queue_tid(txq, tid); + ath_txq_schedule(sc, txq); + } + + ath_txq_unlock_complete(sc, txq); } /********************/ @@ -2431,13 +2374,10 @@ void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an) tid->baw_head = tid->baw_tail = 0; tid->sched = false; tid->paused = false; - tid->state &= ~AGGR_CLEANUP; + tid->active = false; __skb_queue_head_init(&tid->buf_q); acno = TID_TO_WME_AC(tidno); tid->ac = &an->ac[acno]; - tid->state &= ~AGGR_ADDBA_COMPLETE; - tid->state &= ~AGGR_ADDBA_PROGRESS; - tid->stop_cb = false; } for (acno = 0, ac = &an->ac[acno]; @@ -2474,7 +2414,7 @@ void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an) } ath_tid_drain(sc, txq, tid); - ath_tx_clear_tid(sc, tid); + tid->active = false; ath_txq_unlock(sc, txq); } -- cgit v1.2.3 From beaee9cac180e37bbb30d538bcea0ebbcf4fba0e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 30 Apr 2013 10:57:05 +0300 Subject: atmel: printing bogus information There was an extra ';' character added to the end of the if statement which means that it always prints that the /proc entry wasn't created even though it was. Signed-off-by: Dan Carpenter Acked-by: David Howells Signed-off-by: John W. Linville --- drivers/net/wireless/atmel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c index 830bb1d1f957..b827d51c30a3 100644 --- a/drivers/net/wireless/atmel.c +++ b/drivers/net/wireless/atmel.c @@ -1624,7 +1624,7 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port, netif_carrier_off(dev); - if (!proc_create_data("driver/atmel", 0, NULL, &atmel_proc_fops, priv)); + if (!proc_create_data("driver/atmel", 0, NULL, &atmel_proc_fops, priv)) printk(KERN_WARNING "atmel: unable to create /proc entry.\n"); printk(KERN_INFO "%s: Atmel at76c50x. Version %d.%d. MAC %pM\n", -- cgit v1.2.3 From 591a0ac7f14aae6bf11b1cb6b5a68480bd644ddb Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 23 May 2013 12:07:50 +0300 Subject: OMAPDSS: Fix crash with DT boot When booting with DT, there's a crash when omapfb is probed. This is caused by the fact that omapdss+DT is not yet supported, and thus omapdss is not probed at all. On the other hand, omapfb is always probed. When omapfb tries to use omapdss, there's a NULL pointer dereference crash. The same error should most likely happen with omapdrm and omap_vout also. To fix this, add an "initialized" state to omapdss. When omapdss has been probed, it's marked as initialized. omapfb, omapdrm and omap_vout check this state when they are probed to see that omapdss is actually there. Signed-off-by: Tomi Valkeinen Tested-by: Peter Ujfalusi --- drivers/gpu/drm/omapdrm/omap_drv.c | 3 +++ drivers/media/platform/omap/omap_vout.c | 3 +++ drivers/video/omap2/dss/core.c | 20 +++++++++++++++++++- drivers/video/omap2/omapfb/omapfb-main.c | 3 +++ 4 files changed, 28 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index 079c54c6f94c..902074bbd1f4 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -548,6 +548,9 @@ static void pdev_shutdown(struct platform_device *device) static int pdev_probe(struct platform_device *device) { + if (omapdss_is_initialized() == false) + return -EPROBE_DEFER; + DBG("%s", device->name); return drm_platform_init(&omap_drm_driver, device); } diff --git a/drivers/media/platform/omap/omap_vout.c b/drivers/media/platform/omap/omap_vout.c index 96c4a17e4280..0a489bd29d6b 100644 --- a/drivers/media/platform/omap/omap_vout.c +++ b/drivers/media/platform/omap/omap_vout.c @@ -2144,6 +2144,9 @@ static int __init omap_vout_probe(struct platform_device *pdev) struct omap_dss_device *def_display; struct omap2video_device *vid_dev = NULL; + if (omapdss_is_initialized() == false) + return -EPROBE_DEFER; + ret = omapdss_compat_init(); if (ret) { dev_err(&pdev->dev, "failed to init dss\n"); diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index f8779d4750ba..f49ddb9e7c82 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -53,6 +53,8 @@ static char *def_disp_name; module_param_named(def_disp, def_disp_name, charp, 0); MODULE_PARM_DESC(def_disp, "default display name"); +static bool dss_initialized; + const char *omapdss_get_default_display_name(void) { return core.default_display_name; @@ -66,6 +68,12 @@ enum omapdss_version omapdss_get_version(void) } EXPORT_SYMBOL(omapdss_get_version); +bool omapdss_is_initialized(void) +{ + return dss_initialized; +} +EXPORT_SYMBOL(omapdss_is_initialized); + struct platform_device *dss_get_core_pdev(void) { return core.pdev; @@ -606,6 +614,8 @@ static int __init omap_dss_init(void) return r; } + dss_initialized = true; + return 0; } @@ -636,7 +646,15 @@ static int __init omap_dss_init(void) static int __init omap_dss_init2(void) { - return omap_dss_register_drivers(); + int r; + + r = omap_dss_register_drivers(); + if (r) + return r; + + dss_initialized = true; + + return 0; } core_initcall(omap_dss_init); diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c index 717f13a93351..bb5f9fee3659 100644 --- a/drivers/video/omap2/omapfb/omapfb-main.c +++ b/drivers/video/omap2/omapfb/omapfb-main.c @@ -2416,6 +2416,9 @@ static int __init omapfb_probe(struct platform_device *pdev) DBG("omapfb_probe\n"); + if (omapdss_is_initialized() == false) + return -EPROBE_DEFER; + if (pdev->num_resources != 0) { dev_err(&pdev->dev, "probed for an unknown device\n"); r = -ENODEV; -- cgit v1.2.3 From c5cca97fb915a90b1dcddf737062e67dd8656af8 Mon Sep 17 00:00:00 2001 From: Rob Clark Date: Wed, 22 May 2013 11:48:40 +0900 Subject: drm/exynos: use drm_send_vblank_event() helper Rebased. Signed-off-by: Rob Clark Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 02b36080d00b..db3decffc985 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -397,7 +397,6 @@ void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc) { struct exynos_drm_private *dev_priv = dev->dev_private; struct drm_pending_vblank_event *e, *t; - struct timeval now; unsigned long flags; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -410,13 +409,8 @@ void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc) if (crtc != e->pipe) continue; - do_gettimeofday(&now); - e->event.sequence = 0; - e->event.tv_sec = now.tv_sec; - e->event.tv_usec = now.tv_usec; - - list_move_tail(&e->base.link, &e->base.file_priv->event_list); - wake_up_interruptible(&e->base.file_priv->event_wait); + list_del(&e->base.link); + drm_send_vblank_event(dev, -1, e); drm_vblank_put(dev, crtc); } -- cgit v1.2.3 From 20cd2640a295cab46bcd08f4788984ca236fc148 Mon Sep 17 00:00:00 2001 From: Inki Dae Date: Tue, 21 May 2013 16:55:58 +0900 Subject: drm/exynos: wait for the completion of pending page flip This patch fixes the issue that drm_vblank_get() is failed. The issus occurs when next page flip request is tried if previous page flip event wasn't completed yet and then dpms became off. So this patch make sure that page flip event is completed before dpms goes to off. Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- drivers/gpu/drm/exynos/exynos_drm_crtc.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index db3decffc985..c200e4d71e3d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -48,6 +48,8 @@ struct exynos_drm_crtc { unsigned int pipe; unsigned int dpms; enum exynos_crtc_mode mode; + wait_queue_head_t pending_flip_queue; + atomic_t pending_flip; }; static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode) @@ -61,6 +63,13 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode) return; } + if (mode > DRM_MODE_DPMS_ON) { + /* wait for the completion of page flip. */ + wait_event(exynos_crtc->pending_flip_queue, + atomic_read(&exynos_crtc->pending_flip) == 0); + drm_vblank_off(crtc->dev, exynos_crtc->pipe); + } + exynos_drm_fn_encoder(crtc, &mode, exynos_drm_encoder_crtc_dpms); exynos_crtc->dpms = mode; } @@ -224,6 +233,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc, spin_lock_irq(&dev->event_lock); list_add_tail(&event->base.link, &dev_priv->pageflip_event_list); + atomic_set(&exynos_crtc->pending_flip, 1); spin_unlock_irq(&dev->event_lock); crtc->fb = fb; @@ -343,6 +353,8 @@ int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr) exynos_crtc->pipe = nr; exynos_crtc->dpms = DRM_MODE_DPMS_OFF; + init_waitqueue_head(&exynos_crtc->pending_flip_queue); + atomic_set(&exynos_crtc->pending_flip, 0); exynos_crtc->plane = exynos_plane_init(dev, 1 << nr, true); if (!exynos_crtc->plane) { kfree(exynos_crtc); @@ -397,6 +409,8 @@ void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc) { struct exynos_drm_private *dev_priv = dev->dev_private; struct drm_pending_vblank_event *e, *t; + struct drm_crtc *drm_crtc = dev_priv->crtc[crtc]; + struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc); unsigned long flags; DRM_DEBUG_KMS("%s\n", __FILE__); @@ -412,6 +426,8 @@ void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc) list_del(&e->base.link); drm_send_vblank_event(dev, -1, e); drm_vblank_put(dev, crtc); + atomic_set(&exynos_crtc->pending_flip, 0); + wake_up(&exynos_crtc->pending_flip_queue); } spin_unlock_irqrestore(&dev->event_lock, flags); -- cgit v1.2.3 From d873ab99acd23dcd6860d8e605bc3146a4d4d9a2 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 22 May 2013 21:14:14 +0900 Subject: drm/exynos: cleanup device pointer usages Struct device pointer got from platform device pointer is already alsigned as variable, but some functions do not use device pointer. So this patch replaces thoes usages. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fimc.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 10 +++++----- drivers/gpu/drm/exynos/exynos_drm_g2d.c | 6 +++--- drivers/gpu/drm/exynos/exynos_drm_gsc.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_ipp.c | 4 ++-- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 4 ++-- drivers/gpu/drm/exynos/exynos_hdmi.c | 14 +++++++------- drivers/gpu/drm/exynos/exynos_mixer.c | 14 +++++++------- 9 files changed, 29 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c index 773f583fa964..754d76082eb3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c @@ -1884,7 +1884,7 @@ static int fimc_probe(struct platform_device *pdev) goto err_pm_dis; } - dev_info(&pdev->dev, "drm fimc registered successfully.\n"); + dev_info(dev, "drm fimc registered successfully.\n"); return 0; diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 746b282b343a..97c61dbffd82 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -885,7 +885,7 @@ static int fimd_probe(struct platform_device *pdev) DRM_DEBUG_KMS("%s\n", __FILE__); - if (pdev->dev.of_node) { + if (dev->of_node) { pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) { DRM_ERROR("memory allocation for pdata failed\n"); @@ -899,7 +899,7 @@ static int fimd_probe(struct platform_device *pdev) return ret; } } else { - pdata = pdev->dev.platform_data; + pdata = dev->platform_data; if (!pdata) { DRM_ERROR("no platform data specified\n"); return -EINVAL; @@ -912,7 +912,7 @@ static int fimd_probe(struct platform_device *pdev) return -EINVAL; } - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; @@ -930,7 +930,7 @@ static int fimd_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - ctx->regs = devm_ioremap_resource(&pdev->dev, res); + ctx->regs = devm_ioremap_resource(dev, res); if (IS_ERR(ctx->regs)) return PTR_ERR(ctx->regs); @@ -942,7 +942,7 @@ static int fimd_probe(struct platform_device *pdev) ctx->irq = res->start; - ret = devm_request_irq(&pdev->dev, ctx->irq, fimd_irq_handler, + ret = devm_request_irq(dev, ctx->irq, fimd_irq_handler, 0, "drm_fimd", ctx); if (ret) { dev_err(dev, "irq request failed.\n"); diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 47a493c8a71f..af75434ee4d7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -1379,7 +1379,7 @@ static int g2d_probe(struct platform_device *pdev) struct exynos_drm_subdrv *subdrv; int ret; - g2d = devm_kzalloc(&pdev->dev, sizeof(*g2d), GFP_KERNEL); + g2d = devm_kzalloc(dev, sizeof(*g2d), GFP_KERNEL); if (!g2d) { dev_err(dev, "failed to allocate driver data\n"); return -ENOMEM; @@ -1417,7 +1417,7 @@ static int g2d_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - g2d->regs = devm_ioremap_resource(&pdev->dev, res); + g2d->regs = devm_ioremap_resource(dev, res); if (IS_ERR(g2d->regs)) { ret = PTR_ERR(g2d->regs); goto err_put_clk; @@ -1430,7 +1430,7 @@ static int g2d_probe(struct platform_device *pdev) goto err_put_clk; } - ret = devm_request_irq(&pdev->dev, g2d->irq, g2d_irq_handler, 0, + ret = devm_request_irq(dev, g2d->irq, g2d_irq_handler, 0, "drm_g2d", g2d); if (ret < 0) { dev_err(dev, "irq request failed\n"); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c index 7841c3b8a20e..487595ac51a8 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c @@ -1743,7 +1743,7 @@ static int gsc_probe(struct platform_device *pdev) goto err_ippdrv_register; } - dev_info(&pdev->dev, "drm gsc registered successfully.\n"); + dev_info(dev, "drm gsc registered successfully.\n"); return 0; diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c index ba2f0f1aa05f..437fb947e46d 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c @@ -442,7 +442,7 @@ static int exynos_drm_hdmi_probe(struct platform_device *pdev) DRM_DEBUG_KMS("%s\n", __FILE__); - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) { DRM_LOG_KMS("failed to alloc common hdmi context.\n"); return -ENOMEM; diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c index 5c4764af7cb9..be1e88463466 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c +++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c @@ -1909,7 +1909,7 @@ static int ipp_probe(struct platform_device *pdev) struct exynos_drm_subdrv *subdrv; int ret; - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; @@ -1963,7 +1963,7 @@ static int ipp_probe(struct platform_device *pdev) goto err_cmd_workq; } - dev_info(&pdev->dev, "drm ipp registered successfully.\n"); + dev_info(dev, "drm ipp registered successfully.\n"); return 0; diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index 9504b0cd825a..24376c194a5e 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -594,7 +594,7 @@ static int vidi_probe(struct platform_device *pdev) DRM_DEBUG_KMS("%s\n", __FILE__); - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; @@ -612,7 +612,7 @@ static int vidi_probe(struct platform_device *pdev) platform_set_drvdata(pdev, ctx); - ret = device_create_file(&pdev->dev, &dev_attr_connection); + ret = device_create_file(dev, &dev_attr_connection); if (ret < 0) DRM_INFO("failed to create connection sysfs.\n"); diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 7e99853f1e18..8d5dcd15e150 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -1946,14 +1946,14 @@ static int hdmi_probe(struct platform_device *pdev) DRM_DEBUG_KMS("[%d]\n", __LINE__); - if (pdev->dev.of_node) { + if (dev->of_node) { pdata = drm_hdmi_dt_parse_pdata(dev); if (IS_ERR(pdata)) { DRM_ERROR("failed to parse dt\n"); return PTR_ERR(pdata); } } else { - pdata = pdev->dev.platform_data; + pdata = dev->platform_data; } if (!pdata) { @@ -1961,14 +1961,14 @@ static int hdmi_probe(struct platform_device *pdev) return -EINVAL; } - drm_hdmi_ctx = devm_kzalloc(&pdev->dev, sizeof(*drm_hdmi_ctx), + drm_hdmi_ctx = devm_kzalloc(dev, sizeof(*drm_hdmi_ctx), GFP_KERNEL); if (!drm_hdmi_ctx) { DRM_ERROR("failed to allocate common hdmi context.\n"); return -ENOMEM; } - hdata = devm_kzalloc(&pdev->dev, sizeof(struct hdmi_context), + hdata = devm_kzalloc(dev, sizeof(struct hdmi_context), GFP_KERNEL); if (!hdata) { DRM_ERROR("out of memory\n"); @@ -1985,7 +1985,7 @@ static int hdmi_probe(struct platform_device *pdev) if (dev->of_node) { const struct of_device_id *match; match = of_match_node(of_match_ptr(hdmi_match_types), - pdev->dev.of_node); + dev->of_node); if (match == NULL) return -ENODEV; hdata->type = (enum hdmi_type)match->data; @@ -2010,11 +2010,11 @@ static int hdmi_probe(struct platform_device *pdev) return -ENOENT; } - hdata->regs = devm_ioremap_resource(&pdev->dev, res); + hdata->regs = devm_ioremap_resource(dev, res); if (IS_ERR(hdata->regs)) return PTR_ERR(hdata->regs); - ret = devm_gpio_request(&pdev->dev, hdata->hpd_gpio, "HPD"); + ret = devm_gpio_request(dev, hdata->hpd_gpio, "HPD"); if (ret) { DRM_ERROR("failed to request HPD gpio\n"); return ret; diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index ec3e376b7e01..7c197d3820c5 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -1061,7 +1061,7 @@ static int mixer_resources_init(struct exynos_drm_hdmi_context *ctx, return -ENXIO; } - mixer_res->mixer_regs = devm_ioremap(&pdev->dev, res->start, + mixer_res->mixer_regs = devm_ioremap(dev, res->start, resource_size(res)); if (mixer_res->mixer_regs == NULL) { dev_err(dev, "register mapping failed.\n"); @@ -1074,7 +1074,7 @@ static int mixer_resources_init(struct exynos_drm_hdmi_context *ctx, return -ENXIO; } - ret = devm_request_irq(&pdev->dev, res->start, mixer_irq_handler, + ret = devm_request_irq(dev, res->start, mixer_irq_handler, 0, "drm_mixer", ctx); if (ret) { dev_err(dev, "request interrupt failed.\n"); @@ -1118,7 +1118,7 @@ static int vp_resources_init(struct exynos_drm_hdmi_context *ctx, return -ENXIO; } - mixer_res->vp_regs = devm_ioremap(&pdev->dev, res->start, + mixer_res->vp_regs = devm_ioremap(dev, res->start, resource_size(res)); if (mixer_res->vp_regs == NULL) { dev_err(dev, "register mapping failed.\n"); @@ -1169,14 +1169,14 @@ static int mixer_probe(struct platform_device *pdev) dev_info(dev, "probe start\n"); - drm_hdmi_ctx = devm_kzalloc(&pdev->dev, sizeof(*drm_hdmi_ctx), + drm_hdmi_ctx = devm_kzalloc(dev, sizeof(*drm_hdmi_ctx), GFP_KERNEL); if (!drm_hdmi_ctx) { DRM_ERROR("failed to allocate common hdmi context.\n"); return -ENOMEM; } - ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) { DRM_ERROR("failed to alloc mixer context.\n"); return -ENOMEM; @@ -1187,14 +1187,14 @@ static int mixer_probe(struct platform_device *pdev) if (dev->of_node) { const struct of_device_id *match; match = of_match_node(of_match_ptr(mixer_match_types), - pdev->dev.of_node); + dev->of_node); drv = (struct mixer_drv_data *)match->data; } else { drv = (struct mixer_drv_data *) platform_get_device_id(pdev)->driver_data; } - ctx->dev = &pdev->dev; + ctx->dev = dev; ctx->parent_ctx = (void *)drm_hdmi_ctx; drm_hdmi_ctx->ctx = (void *)ctx; ctx->vp_enabled = drv->is_vp_enabled; -- cgit v1.2.3 From a3ad6976fe5a306fc6cb9e423ac0ef2f06f79189 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 22 May 2013 21:14:15 +0900 Subject: drm/exynos: fix build warnings from ipp fimc Becuase of order of headers, there are build warnings and they are fixed with this patch. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fimc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c index 754d76082eb3..75c50f5fe0ed 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c @@ -12,9 +12,9 @@ * */ #include -#include #include #include +#include #include #include #include -- cgit v1.2.3 From 7a1b00e0728ff20d6c8e2d6335da05d13d03ef74 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 22 May 2013 21:14:16 +0900 Subject: drm/exynos: remove unnecessary devm_kfree devm_kfree does not need for fail case of probe function and for remove function. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_gsc.c | 2 -- drivers/gpu/drm/exynos/exynos_drm_rotator.c | 2 -- 2 files changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c index 487595ac51a8..98032d6c62c3 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c @@ -1748,7 +1748,6 @@ static int gsc_probe(struct platform_device *pdev) return 0; err_ippdrv_register: - devm_kfree(dev, ippdrv->prop_list); pm_runtime_disable(dev); err_get_irq: free_irq(ctx->irq, ctx); @@ -1761,7 +1760,6 @@ static int gsc_remove(struct platform_device *pdev) struct gsc_context *ctx = get_gsc_context(dev); struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv; - devm_kfree(dev, ippdrv->prop_list); exynos_drm_ippdrv_unregister(ippdrv); mutex_destroy(&ctx->lock); diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c index 947f09f15ad1..3aa502a6cf21 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c @@ -709,7 +709,6 @@ static int rotator_probe(struct platform_device *pdev) return 0; err_ippdrv_register: - devm_kfree(dev, ippdrv->prop_list); pm_runtime_disable(dev); err_clk_get: free_irq(rot->irq, rot); @@ -722,7 +721,6 @@ static int rotator_remove(struct platform_device *pdev) struct rot_context *rot = dev_get_drvdata(dev); struct exynos_drm_ippdrv *ippdrv = &rot->ippdrv; - devm_kfree(dev, ippdrv->prop_list); exynos_drm_ippdrv_unregister(ippdrv); pm_runtime_disable(dev); -- cgit v1.2.3 From dcb9a7c74acf59679a537e6fcc7a99c12353e7b8 Mon Sep 17 00:00:00 2001 From: Seung-Woo Kim Date: Wed, 22 May 2013 21:14:17 +0900 Subject: drm/exynos: replace request_threaded_irq with devm function devm_request_threaded_irq is used instead of request_threaded_irq and free_irq is removed. Signed-off-by: Seung-Woo Kim Signed-off-by: Inki Dae --- drivers/gpu/drm/exynos/exynos_drm_fimc.c | 8 ++------ drivers/gpu/drm/exynos/exynos_drm_gsc.c | 8 ++------ drivers/gpu/drm/exynos/exynos_drm_rotator.c | 11 +++-------- drivers/gpu/drm/exynos/exynos_hdmi.c | 7 +------ 4 files changed, 8 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimc.c b/drivers/gpu/drm/exynos/exynos_drm_fimc.c index 75c50f5fe0ed..4a1616a18ab7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimc.c @@ -1845,7 +1845,7 @@ static int fimc_probe(struct platform_device *pdev) } ctx->irq = res->start; - ret = request_threaded_irq(ctx->irq, NULL, fimc_irq_handler, + ret = devm_request_threaded_irq(dev, ctx->irq, NULL, fimc_irq_handler, IRQF_ONESHOT, "drm_fimc", ctx); if (ret < 0) { dev_err(dev, "failed to request irq.\n"); @@ -1854,7 +1854,7 @@ static int fimc_probe(struct platform_device *pdev) ret = fimc_setup_clocks(ctx); if (ret < 0) - goto err_free_irq; + return ret; ippdrv = &ctx->ippdrv; ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &fimc_src_ops; @@ -1892,8 +1892,6 @@ err_pm_dis: pm_runtime_disable(dev); err_put_clk: fimc_put_clocks(ctx); -err_free_irq: - free_irq(ctx->irq, ctx); return ret; } @@ -1911,8 +1909,6 @@ static int fimc_remove(struct platform_device *pdev) pm_runtime_set_suspended(dev); pm_runtime_disable(dev); - free_irq(ctx->irq, ctx); - return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c index 98032d6c62c3..762f40d548b7 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c @@ -1704,7 +1704,7 @@ static int gsc_probe(struct platform_device *pdev) } ctx->irq = res->start; - ret = request_threaded_irq(ctx->irq, NULL, gsc_irq_handler, + ret = devm_request_threaded_irq(dev, ctx->irq, NULL, gsc_irq_handler, IRQF_ONESHOT, "drm_gsc", ctx); if (ret < 0) { dev_err(dev, "failed to request irq.\n"); @@ -1725,7 +1725,7 @@ static int gsc_probe(struct platform_device *pdev) ret = gsc_init_prop_list(ippdrv); if (ret < 0) { dev_err(dev, "failed to init property list.\n"); - goto err_get_irq; + return ret; } DRM_DEBUG_KMS("%s:id[%d]ippdrv[0x%x]\n", __func__, ctx->id, @@ -1749,8 +1749,6 @@ static int gsc_probe(struct platform_device *pdev) err_ippdrv_register: pm_runtime_disable(dev); -err_get_irq: - free_irq(ctx->irq, ctx); return ret; } @@ -1766,8 +1764,6 @@ static int gsc_remove(struct platform_device *pdev) pm_runtime_set_suspended(dev); pm_runtime_disable(dev); - free_irq(ctx->irq, ctx); - return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c index 3aa502a6cf21..9b6c70964d71 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c +++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c @@ -666,8 +666,8 @@ static int rotator_probe(struct platform_device *pdev) return rot->irq; } - ret = request_threaded_irq(rot->irq, NULL, rotator_irq_handler, - IRQF_ONESHOT, "drm_rotator", rot); + ret = devm_request_threaded_irq(dev, rot->irq, NULL, + rotator_irq_handler, IRQF_ONESHOT, "drm_rotator", rot); if (ret < 0) { dev_err(dev, "failed to request irq\n"); return ret; @@ -676,8 +676,7 @@ static int rotator_probe(struct platform_device *pdev) rot->clock = devm_clk_get(dev, "rotator"); if (IS_ERR(rot->clock)) { dev_err(dev, "failed to get clock\n"); - ret = PTR_ERR(rot->clock); - goto err_clk_get; + return PTR_ERR(rot->clock); } pm_runtime_enable(dev); @@ -710,8 +709,6 @@ static int rotator_probe(struct platform_device *pdev) err_ippdrv_register: pm_runtime_disable(dev); -err_clk_get: - free_irq(rot->irq, rot); return ret; } @@ -725,8 +722,6 @@ static int rotator_remove(struct platform_device *pdev) pm_runtime_disable(dev); - free_irq(rot->irq, rot); - return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c index 8d5dcd15e150..2f785325d6de 100644 --- a/drivers/gpu/drm/exynos/exynos_hdmi.c +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c @@ -2046,7 +2046,7 @@ static int hdmi_probe(struct platform_device *pdev) hdata->hpd = gpio_get_value(hdata->hpd_gpio); - ret = request_threaded_irq(hdata->irq, NULL, + ret = devm_request_threaded_irq(dev, hdata->irq, NULL, hdmi_irq_thread, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "hdmi", drm_hdmi_ctx); @@ -2075,16 +2075,11 @@ err_ddc: static int hdmi_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct exynos_drm_hdmi_context *ctx = platform_get_drvdata(pdev); - struct hdmi_context *hdata = ctx->ctx; DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); pm_runtime_disable(dev); - free_irq(hdata->irq, ctx); - - /* hdmiphy i2c driver */ i2c_del_driver(&hdmiphy_driver); /* DDC i2c driver */ -- cgit v1.2.3 From 331de00a64e5027365145bdf51da27b9ce15dfd5 Mon Sep 17 00:00:00 2001 From: Sergio Aguirre Date: Thu, 4 Apr 2013 10:32:13 -0700 Subject: xhci-mem: init list heads at the beginning of init It is possible that we fail on xhci_mem_init, just before doing the INIT_LIST_HEAD, and calling xhci_mem_cleanup. Problem is that, the list_for_each_entry_safe macro, assumes list heads are initialized (not NULL), and dereferences their 'next' pointer, causing a kernel panic if this is not yet initialized. Let's protect from that by moving inits to the beginning. This patch should be backported to kernels as old as 3.2, that contain the commit 9574323c39d1f8359a04843075d89c9f32d8b7e6 "xHCI: test USB2 software LPM". Signed-off-by: Sergio Aguirre Acked-by: David Cohen Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-mem.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 2cfc465925bd..bda2c51a7c74 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2256,6 +2256,9 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) u32 page_size, temp; int i; + INIT_LIST_HEAD(&xhci->lpm_failed_devs); + INIT_LIST_HEAD(&xhci->cancel_cmd_list); + page_size = xhci_readl(xhci, &xhci->op_regs->page_size); xhci_dbg(xhci, "Supported page size register = 0x%x\n", page_size); for (i = 0; i < 16; i++) { @@ -2334,7 +2337,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, flags); if (!xhci->cmd_ring) goto fail; - INIT_LIST_HEAD(&xhci->cancel_cmd_list); xhci_dbg(xhci, "Allocated command ring at %p\n", xhci->cmd_ring); xhci_dbg(xhci, "First segment DMA is 0x%llx\n", (unsigned long long)xhci->cmd_ring->first_seg->dma); @@ -2445,8 +2447,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) if (xhci_setup_port_arrays(xhci, flags)) goto fail; - INIT_LIST_HEAD(&xhci->lpm_failed_devs); - /* Enable USB 3.0 device notifications for function remote wake, which * is necessary for allowing USB 3.0 devices to do remote wakeup from * U3 (device suspend). -- cgit v1.2.3 From 88696ae432ce7321540ac53d9caab3de9118b094 Mon Sep 17 00:00:00 2001 From: Vladimir Murzin Date: Tue, 9 Apr 2013 22:33:31 +0400 Subject: xhci: fix list access before init If for whatever reason we fall into fail path in xhci_mem_init() before bw table gets initialized we may access the uninitialized lists in xhci_mem_cleanup(). Check for bw table before traversing lists in cleanup routine. This patch should be backported to kernels as old as 3.2, that contain the commit 839c817ce67178ca3c7c7ad534c571bba1e69ebe "xhci: Store information about roothubs and TTs." Reported-by: Sergey Dyasly Tested-by: Sergey Dyasly Signed-off-by: Vladimir Murzin Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-mem.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index bda2c51a7c74..fbf75e57628b 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1827,6 +1827,9 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) } spin_unlock_irqrestore(&xhci->lock, flags); + if (!xhci->rh_bw) + goto no_bw; + num_ports = HCS_MAX_PORTS(xhci->hcs_params1); for (i = 0; i < num_ports; i++) { struct xhci_interval_bw_table *bwt = &xhci->rh_bw[i].bw_table; @@ -1845,6 +1848,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) } } +no_bw: xhci->num_usb2_ports = 0; xhci->num_usb3_ports = 0; xhci->num_active_eps = 0; -- cgit v1.2.3 From 23dd9b2a43698df12f7951e0e5a5fbffd0b3108a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 23 May 2013 12:20:54 +0200 Subject: ath9k_hw: fix spur mitigation issues on AR934x Do not subtract spur power from noise floor on this chip, as it can lead to packet loss and other connectivity issues. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_phy.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index 2bf6548dd143..e1714d7c9eeb 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -334,7 +334,8 @@ static void ar9003_hw_spur_ofdm(struct ath_hw *ah, REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1); - if (REG_READ_FIELD(ah, AR_PHY_MODE, + if (!AR_SREV_9340(ah) && + REG_READ_FIELD(ah, AR_PHY_MODE, AR_PHY_MODE_DYNAMIC) == 0x1) REG_RMW_FIELD(ah, AR_PHY_SPUR_REG, AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1); -- cgit v1.2.3 From a37a99102e4573145aa60a2f78a690cc8def027c Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 23 May 2013 12:20:55 +0200 Subject: ath9k_hw: fix host interface reset on AR934x If a local bus timeout has been detected, the host interface needs to be reset to clear the errors. AR934x uses a different synchronous interrupt bit to indicate this, so the check needs to be fixed. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 10 +++++++--- drivers/net/wireless/ath/ath9k/reg.h | 2 ++ 2 files changed, 9 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 7f25da8444fe..01e97ce438ba 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1306,9 +1306,13 @@ static bool ath9k_hw_set_reset(struct ath_hw *ah, int type) AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET; } else { tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE); - if (tmpReg & - (AR_INTR_SYNC_LOCAL_TIMEOUT | - AR_INTR_SYNC_RADM_CPL_TIMEOUT)) { + if (AR_SREV_9340(ah)) + tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT; + else + tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT | + AR_INTR_SYNC_RADM_CPL_TIMEOUT; + + if (tmpReg) { u32 val; REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0); diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 5c4ab5026dca..9c056a80b85d 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -1007,6 +1007,8 @@ enum { AR_INTR_SYNC_LOCAL_TIMEOUT | AR_INTR_SYNC_MAC_SLEEP_ACCESS), + AR9340_INTR_SYNC_LOCAL_TIMEOUT = 0x00000010, + AR_INTR_SYNC_SPURIOUS = 0xFFFFFFFF, }; -- cgit v1.2.3 From 86c157b3f83597e11d8f03a9dece98d1e77a8ce7 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 23 May 2013 12:20:56 +0200 Subject: ath9k_hw: improve performance for AR934x v1.3+ AR934x v1.3 no longer needs the DCU backoff reduction workaround for preventing rx overruns, but in turn needs the number of usable Tx buffers to be reduced slightly. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 15 ++++++++++----- drivers/net/wireless/ath/ath9k/mac.c | 2 +- drivers/net/wireless/ath/ath9k/reg.h | 9 +++++++++ 3 files changed, 20 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 01e97ce438ba..15dfefcf2d0f 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -1172,6 +1172,7 @@ u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan) static inline void ath9k_hw_set_dma(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); + int txbuf_size; ENABLE_REGWRITE_BUFFER(ah); @@ -1225,13 +1226,17 @@ static inline void ath9k_hw_set_dma(struct ath_hw *ah) * So set the usable tx buf size also to half to * avoid data/delimiter underruns */ - REG_WRITE(ah, AR_PCU_TXBUF_CTRL, - AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE); - } else if (!AR_SREV_9271(ah)) { - REG_WRITE(ah, AR_PCU_TXBUF_CTRL, - AR_PCU_TXBUF_CTRL_USABLE_SIZE); + txbuf_size = AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE; + } else if (AR_SREV_9340_13_OR_LATER(ah)) { + /* Uses fewer entries for AR934x v1.3+ to prevent rx overruns */ + txbuf_size = AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE; + } else { + txbuf_size = AR_PCU_TXBUF_CTRL_USABLE_SIZE; } + if (!AR_SREV_9271(ah)) + REG_WRITE(ah, AR_PCU_TXBUF_CTRL, txbuf_size); + REGWRITE_BUFFER_FLUSH(ah); if (AR_SREV_9300_20_OR_LATER(ah)) diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 498fee04afa0..566109a40fb3 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -410,7 +410,7 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q) REG_WRITE(ah, AR_QMISC(q), AR_Q_MISC_DCU_EARLY_TERM_REQ); - if (AR_SREV_9340(ah)) + if (AR_SREV_9340(ah) && !AR_SREV_9340_13_OR_LATER(ah)) REG_WRITE(ah, AR_DMISC(q), AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x1); else diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 9c056a80b85d..f7c90cc58d56 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -798,6 +798,10 @@ #define AR_SREV_REVISION_9485_10 0 #define AR_SREV_REVISION_9485_11 1 #define AR_SREV_VERSION_9340 0x300 +#define AR_SREV_REVISION_9340_10 0 +#define AR_SREV_REVISION_9340_11 1 +#define AR_SREV_REVISION_9340_12 2 +#define AR_SREV_REVISION_9340_13 3 #define AR_SREV_VERSION_9580 0x1C0 #define AR_SREV_REVISION_9580_10 4 /* AR9580 1.0 */ #define AR_SREV_VERSION_9462 0x280 @@ -897,6 +901,10 @@ #define AR_SREV_9340(_ah) \ (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9340)) +#define AR_SREV_9340_13_OR_LATER(_ah) \ + (AR_SREV_9340((_ah)) && \ + ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9340_13)) + #define AR_SREV_9285E_20(_ah) \ (AR_SREV_9285_12_OR_LATER(_ah) && \ ((REG_READ(_ah, AR_AN_SYNTH9) & 0x7) == 0x1)) @@ -1883,6 +1891,7 @@ enum { #define AR_PCU_TXBUF_CTRL_SIZE_MASK 0x7FF #define AR_PCU_TXBUF_CTRL_USABLE_SIZE 0x700 #define AR_9285_PCU_TXBUF_CTRL_USABLE_SIZE 0x380 +#define AR_9340_PCU_TXBUF_CTRL_USABLE_SIZE 0x500 #define AR_PCU_MISC_MODE2 0x8344 #define AR_PCU_MISC_MODE2_MGMT_CRYPTO_ENABLE 0x00000002 -- cgit v1.2.3 From 77df9e0b799b03e1d5d9c68062709af5f637e834 Mon Sep 17 00:00:00 2001 From: Tony Camuso Date: Thu, 21 Feb 2013 16:11:27 -0500 Subject: xhci - correct comp_mode_recovery_timer on return from hibernate Commit 71c731a2 (usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware) was a workaround for systems using the SN65LVPE502CP, controller, but it introduced a bug in resume from hibernate. The fix created a timer, comp_mode_recovery_timer, which is deleted from a timer list when xhci_suspend() is called. However, the hibernate image, including the timer list containing the comp_mode_recovery_timer, had already been saved before the timer was deleted. Upon resume from hibernate, the list containing the comp_mode_recovery_timer is restored from the image saved to disk, and xhci_resume(), assuming that the timer had been deleted by xhci_suspend(), makes a call to compliance_mode_recoery_timer_init(), which creates a new instance of the comp_mode_recovery_timer and attempts to place it into the same list in which it is already active, thus corrupting the list during the list_add() call. At this point, a call trace is emitted indicating the list corruption. Soon afterward, the system locks up, the watchdog times out, and the ensuing NMI crashes the system. The problem did not occur when resuming from suspend. In suspend, the image in RAM remains exactly as it was when xhci_suspend() deleted the comp_mode_recovery_timer, so there is no problem when xhci_resume() creates a new instance of this timer and places it in the still empty list. This patch avoids the problem by deleting the timer in xhci_resume() when resuming from hibernate. Now xhci_resume() can safely make the call to create a new instance of this timer, whether returning from suspend or hibernate. Thanks to Alan Stern for his help with understanding the problem. [Sarah reworked this patch to cover the case where the xHCI restore register operation fails, and (temp & STS_SRE) is true (and we re-init the host, including re-init for the compliance mode), but hibernate is false. The original patch would have caused list corruption in this case.] This patch should be backported to kernels as old as 3.2, that contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware" Signed-off-by: Tony Camuso Tested-by: Tony Camuso Acked-by: Don Zickus Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index b4aa79d154b2..ae59119ed087 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -956,6 +956,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct usb_hcd *secondary_hcd; int retval = 0; + bool comp_timer_running = false; /* Wait a bit if either of the roothubs need to settle from the * transition into bus suspend. @@ -993,6 +994,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) /* If restore operation fails, re-initialize the HC during resume */ if ((temp & STS_SRE) || hibernated) { + + if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && + !(xhci_all_ports_seen_u0(xhci))) { + del_timer_sync(&xhci->comp_mode_recovery_timer); + xhci_dbg(xhci, "Compliance Mode Recovery Timer deleted!\n"); + } + /* Let the USB core know _both_ roothubs lost power. */ usb_root_hub_lost_power(xhci->main_hcd->self.root_hub); usb_root_hub_lost_power(xhci->shared_hcd->self.root_hub); @@ -1035,6 +1043,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) retval = xhci_init(hcd->primary_hcd); if (retval) return retval; + comp_timer_running = true; + xhci_dbg(xhci, "Start the primary HCD\n"); retval = xhci_run(hcd->primary_hcd); if (!retval) { @@ -1076,7 +1086,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) * to suffer the Compliance Mode issue again. It doesn't matter if * ports have entered previously to U0 before system's suspension. */ - if (xhci->quirks & XHCI_COMP_MODE_QUIRK) + if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running) compliance_mode_recovery_timer_init(xhci); /* Re-enable port polling. */ -- cgit v1.2.3 From c3897aa5386faba77e5bbdf94902a1658d3a5b11 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Thu, 18 Apr 2013 10:02:03 -0700 Subject: xhci: Disable D3cold for buggy TI redrivers. Some xHCI hosts contain a "redriver" from TI that silently drops port status connect changes if the port slips into Compliance Mode. If the port slips into compliance mode while the host is in D0, there will not be a port status change event. If the port slips into compliance mode while the host is in D3, the host will not send a PME. This includes when the system is suspended (S3) or hibernated (S4). If this happens when the system is in S3/S4, there is nothing software can do. Other port status change events that would normally cause the host to wake the system from S3/S4 may also be lost. This includes remote wakeup, disconnects and connects on other ports, and overrcurrent events. A decision was made to _NOT_ disable system suspend/hibernate on these systems, since users are unlikely to enable wakeup from S3/S4 for the xHCI host. Software can deal with this issue when the system is in S0. A work around was put in to poll the port status registers for Compliance Mode. The xHCI driver will continue to poll the registers while the host is runtime suspended. Unfortunately, that means we can't allow the PCI device to go into D3cold, because power will be removed from the host, and the config space will read as all Fs. Disable D3cold in the xHCI PCI runtime suspend function. This patch should be backported to kernels as old as 3.2, that contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP Hardware" Signed-off-by: Sarah Sharp Cc: Huang Ying Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-pci.c | 8 ++++++++ drivers/usb/host/xhci.c | 4 ++-- drivers/usb/host/xhci.h | 3 +++ 3 files changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 1a30c380043c..cc24e39b97d5 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -221,6 +221,14 @@ static void xhci_pci_remove(struct pci_dev *dev) static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + + /* + * Systems with the TI redriver that loses port status change events + * need to have the registers polled during D3, so avoid D3cold. + */ + if (xhci_compliance_mode_recovery_timer_quirk_check()) + pdev->no_d3cold = true; return xhci_suspend(xhci); } diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index ae59119ed087..d8f640b12dd9 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -466,7 +466,7 @@ static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci) * Systems: * Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820 */ -static bool compliance_mode_recovery_timer_quirk_check(void) +bool xhci_compliance_mode_recovery_timer_quirk_check(void) { const char *dmi_product_name, *dmi_sys_vendor; @@ -517,7 +517,7 @@ int xhci_init(struct usb_hcd *hcd) xhci_dbg(xhci, "Finished xhci_init\n"); /* Initializing Compliance Mode Recovery Data If Needed */ - if (compliance_mode_recovery_timer_quirk_check()) { + if (xhci_compliance_mode_recovery_timer_quirk_check()) { xhci->quirks |= XHCI_COMP_MODE_QUIRK; compliance_mode_recovery_timer_init(xhci); } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 29c978e37135..77600cefcaf1 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1853,4 +1853,7 @@ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci, struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int ep_index); +/* xHCI quirks */ +bool xhci_compliance_mode_recovery_timer_quirk_check(void); + #endif /* __LINUX_XHCI_HCD_H */ -- cgit v1.2.3 From 4d2593cc65fa15f2a36313aa8d03a0937226ad49 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 22 May 2013 23:09:50 +0000 Subject: qlge: add missing free_netdev() on error in qlge_probe() Add the missing free_netdev() before return from function qlge_probe() in the error handling case. Signed-off-by: Wei Yongjun Acked-by: Jitendra Kalsaria Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlge/qlge_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c index 50235d201592..f87cc216045b 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c @@ -4717,6 +4717,7 @@ static int qlge_probe(struct pci_dev *pdev, dev_err(&pdev->dev, "net device registration failed.\n"); ql_release_all(pdev); pci_disable_device(pdev); + free_netdev(ndev); return err; } /* Start up the timer to trigger EEH if -- cgit v1.2.3 From 0d8c3e77e7fba8c84c871b43f35029daa92acc17 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 22 May 2013 23:59:28 +0000 Subject: ptp_pch: fix error handling in pch_probe() Fix to release resources when ptp_clock_register() fail instead of return error code directly. Signed-off-by: Wei Yongjun Signed-off-by: David S. Miller --- drivers/ptp/ptp_pch.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c index bea94510ad2d..71a2559278d7 100644 --- a/drivers/ptp/ptp_pch.c +++ b/drivers/ptp/ptp_pch.c @@ -628,9 +628,10 @@ pch_probe(struct pci_dev *pdev, const struct pci_device_id *id) chip->caps = ptp_pch_caps; chip->ptp_clock = ptp_clock_register(&chip->caps, &pdev->dev); - - if (IS_ERR(chip->ptp_clock)) - return PTR_ERR(chip->ptp_clock); + if (IS_ERR(chip->ptp_clock)) { + ret = PTR_ERR(chip->ptp_clock); + goto err_ptp_clock_reg; + } spin_lock_init(&chip->register_lock); @@ -669,6 +670,7 @@ pch_probe(struct pci_dev *pdev, const struct pci_device_id *id) err_req_irq: ptp_clock_unregister(chip->ptp_clock); +err_ptp_clock_reg: iounmap(chip->regs); chip->regs = NULL; -- cgit v1.2.3 From f6825748bdbe381cfffe2dc13ca0b73050428fac Mon Sep 17 00:00:00 2001 From: Martin Fuzzey Date: Mon, 15 Apr 2013 17:08:35 +0200 Subject: mmc: sdhci-esdhc-imx: Fix SDIO interrupts Currently SDIO interrupts do not work on i.MX53 and maybe others. This was observed with a Marvell 8787 based SDIO wifi adapter using the mwifiex driver and firmware from the Marvell git repository. The symptom was a timeout after firmware download. Observing the SDIO_DAT1 line showed that an interrupt was requested (level 0) but no interrupt was generated in software, the line stayed low until a timeout ocurred and the card was reset. There is a Freescale errata ENGcm11186 "eSDHC misses SDIO interrupt when CINT is disabled" The workaround suggested by this errata is already implemented and involves clearing and then setting the D3CD bit in the host control register [see esdhc_writel_le()] However, when esdhc_writeb_le() is later used to write to SDHCI_HOST_CONTROL it always resets the D3CD bit. To fix this simply add the D3CD bit to the set of bits not modified by esdhc_writeb_le(). Signed-off-by: Martin Fuzzey Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-esdhc-imx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 67d6dde2ff19..9b0a0a91ea0a 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -324,8 +324,10 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg) /* * Do not touch buswidth bits here. This is done in * esdhc_pltfm_bus_width. + * Do not touch the D3CD bit either which is used for the + * SDIO interrupt errata workaround. */ - mask = 0xffff & ~ESDHC_CTRL_BUSWIDTH_MASK; + mask = 0xffff & ~(ESDHC_CTRL_BUSWIDTH_MASK | ESDHC_CTRL_D3CD); esdhc_clrset_le(host, mask, new_val, reg); return; -- cgit v1.2.3 From 361b8482026c926997b1d3d5a045bc9f5bc02b16 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 15 Mar 2013 09:49:26 +0100 Subject: mmc: sdhci-esdhc-imx: fix multiblock reads on i.MX53 The eSDHC controller on the i.MX53 needs an additional, non spec compliant CMD12 after a multiblock read with a predefined number of blocks. Otherwise the internal state machine won't go back to the idle state. This commit effectively reverts 5b6b0ad6 (mmc: sdhci-esdhc-imx: fix for mmc cards on i.MX5), which fixed part of the problem by making multiblock reads work, however this fix was not sufficient when multi- and singleblock reads got intermixed. This implements the recommended workaround (Freescale i.MX Reference Manual, section 29.6.8 "Multi-block Read") by manually sending a CMD12 with the RSPTYP bits cleared. Signed-off-by: Lucas Stach Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-esdhc-imx.c | 37 ++++++++++++++++++++++++++++++++++--- 1 file changed, 34 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 9b0a0a91ea0a..d5f0d59e1310 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -85,6 +85,12 @@ struct pltfm_imx_data { struct clk *clk_ipg; struct clk *clk_ahb; struct clk *clk_per; + enum { + NO_CMD_PENDING, /* no multiblock command pending*/ + MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */ + WAIT_FOR_INT, /* sent CMD12, waiting for response INT */ + } multiblock_status; + }; static struct platform_device_id imx_esdhc_devtype[] = { @@ -154,6 +160,8 @@ static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, i static u32 esdhc_readl_le(struct sdhci_host *host, int reg) { + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct pltfm_imx_data *imx_data = pltfm_host->priv; u32 val = readl(host->ioaddr + reg); if (unlikely(reg == SDHCI_CAPABILITIES)) { @@ -175,6 +183,18 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg) val &= ~ESDHC_INT_VENDOR_SPEC_DMA_ERR; val |= SDHCI_INT_ADMA_ERROR; } + + /* + * mask off the interrupt we get in response to the manually + * sent CMD12 + */ + if ((imx_data->multiblock_status == WAIT_FOR_INT) && + ((val & SDHCI_INT_RESPONSE) == SDHCI_INT_RESPONSE)) { + val &= ~SDHCI_INT_RESPONSE; + writel(SDHCI_INT_RESPONSE, host->ioaddr + + SDHCI_INT_STATUS); + imx_data->multiblock_status = NO_CMD_PENDING; + } } return val; @@ -211,6 +231,15 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg) v = readl(host->ioaddr + ESDHC_VENDOR_SPEC); v &= ~ESDHC_VENDOR_SPEC_SDIO_QUIRK; writel(v, host->ioaddr + ESDHC_VENDOR_SPEC); + + if (imx_data->multiblock_status == MULTIBLK_IN_PROCESS) + { + /* send a manual CMD12 with RESPTYP=none */ + data = MMC_STOP_TRANSMISSION << 24 | + SDHCI_CMD_ABORTCMD << 16; + writel(data, host->ioaddr + SDHCI_TRANSFER_MODE); + imx_data->multiblock_status = WAIT_FOR_INT; + } } if (unlikely(reg == SDHCI_INT_ENABLE || reg == SDHCI_SIGNAL_ENABLE)) { @@ -277,11 +306,13 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg) } return; case SDHCI_COMMAND: - if ((host->cmd->opcode == MMC_STOP_TRANSMISSION || - host->cmd->opcode == MMC_SET_BLOCK_COUNT) && - (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)) + if (host->cmd->opcode == MMC_STOP_TRANSMISSION) val |= SDHCI_CMD_ABORTCMD; + if ((host->cmd->opcode == MMC_SET_BLOCK_COUNT) && + (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)) + imx_data->multiblock_status = MULTIBLK_IN_PROCESS; + if (is_imx6q_usdhc(imx_data)) writel(val << 16, host->ioaddr + SDHCI_TRANSFER_MODE); -- cgit v1.2.3 From 8c964df07aaf0e70d1756d204c306f69ca5023b8 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Fri, 19 Apr 2013 09:11:22 +0000 Subject: mmc: atmel-mci: convert to dma_request_slave_channel_compat() Use generic DMA DT helper. Platforms booting with or without DT populated are both supported. Signed-off-by: Ludovic Desroches Acked-by: Jean-Christophe PLAGNIOL-VILLARD Acked-by: Nicolas Ferre Signed-off-by: Chris Ball --- drivers/mmc/host/atmel-mci.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index e75774f72606..aca59d93d5a9 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -2230,10 +2230,15 @@ static void __exit atmci_cleanup_slot(struct atmel_mci_slot *slot, mmc_free_host(slot->mmc); } -static bool atmci_filter(struct dma_chan *chan, void *slave) +static bool atmci_filter(struct dma_chan *chan, void *pdata) { - struct mci_dma_data *sl = slave; + struct mci_platform_data *sl_pdata = pdata; + struct mci_dma_data *sl; + if (!sl_pdata) + return false; + + sl = sl_pdata->dma_slave; if (sl && find_slave_dev(sl) == chan->device->dev) { chan->private = slave_data_ptr(sl); return true; @@ -2245,24 +2250,18 @@ static bool atmci_filter(struct dma_chan *chan, void *slave) static bool atmci_configure_dma(struct atmel_mci *host) { struct mci_platform_data *pdata; + dma_cap_mask_t mask; if (host == NULL) return false; pdata = host->pdev->dev.platform_data; - if (!pdata) - return false; + dma_cap_zero(mask); + dma_cap_set(DMA_SLAVE, mask); - if (pdata->dma_slave && find_slave_dev(pdata->dma_slave)) { - dma_cap_mask_t mask; - - /* Try to grab a DMA channel */ - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - host->dma.chan = - dma_request_channel(mask, atmci_filter, pdata->dma_slave); - } + host->dma.chan = dma_request_slave_channel_compat(mask, atmci_filter, pdata, + &host->pdev->dev, "rxtx"); if (!host->dma.chan) { dev_warn(&host->pdev->dev, "no DMA channel available\n"); return false; -- cgit v1.2.3 From 1d1ff45871984364056ebfc528ed31ff7f03f970 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 26 Apr 2013 11:27:21 +0300 Subject: mmc: sdhci-acpi: fix initial runtime pm status Initial runtime pm status is active. Signed-off-by: Adrian Hunter Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-acpi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index 7bcf74b1a5cd..1da5f29abbcb 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -202,6 +202,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev) goto err_free; if (c->use_runtime_pm) { + pm_runtime_set_active(dev); pm_suspend_ignore_children(dev, 1); pm_runtime_set_autosuspend_delay(dev, 50); pm_runtime_use_autosuspend(dev); -- cgit v1.2.3 From 07a588837be0a18075fedf71e6963b5109abec03 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 26 Apr 2013 11:27:22 +0300 Subject: mmc: sdhci-acpi: add more device ids Add three more ACPI HIDs. Also, as some devices must be further distinguished by ACPI UID, slot information is now associated with HID and UID. Signed-off-by: Adrian Hunter Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-acpi.c | 68 +++++++++++++++++++++++++++++++++++++------ 1 file changed, 59 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index 1da5f29abbcb..706d9cb1a49e 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -87,6 +87,12 @@ static const struct sdhci_ops sdhci_acpi_ops_dflt = { .enable_dma = sdhci_acpi_enable_dma, }; +static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { + .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE, + .caps2 = MMC_CAP2_HC_ERASE_SZ, + .flags = SDHCI_ACPI_RUNTIME_PM, +}; + static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = { .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON, .caps = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD, @@ -94,23 +100,67 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = { .pm_caps = MMC_PM_KEEP_POWER, }; +static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = { +}; + +struct sdhci_acpi_uid_slot { + const char *hid; + const char *uid; + const struct sdhci_acpi_slot *slot; +}; + +static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = { + { "80860F14" , "1" , &sdhci_acpi_slot_int_emmc }, + { "80860F14" , "3" , &sdhci_acpi_slot_int_sd }, + { "INT33BB" , "2" , &sdhci_acpi_slot_int_sdio }, + { "INT33C6" , NULL, &sdhci_acpi_slot_int_sdio }, + { "PNP0D40" }, + { }, +}; + static const struct acpi_device_id sdhci_acpi_ids[] = { - { "INT33C6", (kernel_ulong_t)&sdhci_acpi_slot_int_sdio }, - { "PNP0D40" }, + { "80860F14" }, + { "INT33BB" }, + { "INT33C6" }, + { "PNP0D40" }, { }, }; MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids); -static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid) +static const struct sdhci_acpi_slot *sdhci_acpi_get_slot_by_ids(const char *hid, + const char *uid) { - const struct acpi_device_id *id; - - for (id = sdhci_acpi_ids; id->id[0]; id++) - if (!strcmp(id->id, hid)) - return (const struct sdhci_acpi_slot *)id->driver_data; + const struct sdhci_acpi_uid_slot *u; + + for (u = sdhci_acpi_uids; u->hid; u++) { + if (strcmp(u->hid, hid)) + continue; + if (!u->uid) + return u->slot; + if (uid && !strcmp(u->uid, uid)) + return u->slot; + } return NULL; } +static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(acpi_handle handle, + const char *hid) +{ + const struct sdhci_acpi_slot *slot; + struct acpi_device_info *info; + const char *uid = NULL; + acpi_status status; + + status = acpi_get_object_info(handle, &info); + if (!ACPI_FAILURE(status) && (info->valid & ACPI_VALID_UID)) + uid = info->unique_id.string; + + slot = sdhci_acpi_get_slot_by_ids(hid, uid); + + kfree(info); + return slot; +} + static int sdhci_acpi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -148,7 +198,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev) c = sdhci_priv(host); c->host = host; - c->slot = sdhci_acpi_get_slot(hid); + c->slot = sdhci_acpi_get_slot(handle, hid); c->pdev = pdev; c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM); -- cgit v1.2.3 From 728ef3d1939e23e26067608d8d8da9571be14b1d Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Fri, 26 Apr 2013 11:27:23 +0300 Subject: mmc: sdhci-pci: add more device ids Add three more PCI device ids. Signed-off-by: Adrian Hunter Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-pci.c | 54 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) (limited to 'drivers') diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 0012d3fdc999..701d06d0e1fb 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -33,6 +33,9 @@ */ #define PCI_DEVICE_ID_INTEL_PCH_SDIO0 0x8809 #define PCI_DEVICE_ID_INTEL_PCH_SDIO1 0x880a +#define PCI_DEVICE_ID_INTEL_BYT_EMMC 0x0f14 +#define PCI_DEVICE_ID_INTEL_BYT_SDIO 0x0f15 +#define PCI_DEVICE_ID_INTEL_BYT_SD 0x0f16 /* * PCI registers @@ -304,6 +307,33 @@ static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = { .probe_slot = pch_hc_probe_slot, }; +static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot) +{ + slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE; + slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ; + return 0; +} + +static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot) +{ + slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE; + return 0; +} + +static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { + .allow_runtime_pm = true, + .probe_slot = byt_emmc_probe_slot, +}; + +static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { + .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON, + .allow_runtime_pm = true, + .probe_slot = byt_sdio_probe_slot, +}; + +static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { +}; + /* O2Micro extra registers */ #define O2_SD_LOCK_WP 0xD3 #define O2_SD_MULTI_VCC3V 0xEE @@ -855,6 +885,30 @@ static const struct pci_device_id pci_ids[] = { .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio, }, + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_BYT_EMMC, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_BYT_SDIO, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio, + }, + + { + .vendor = PCI_VENDOR_ID_INTEL, + .device = PCI_DEVICE_ID_INTEL_BYT_SD, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd, + }, + { .vendor = PCI_VENDOR_ID_O2, .device = PCI_DEVICE_ID_O2_8120, -- cgit v1.2.3 From cf5ae40b3968ca769e683b9b071685ad82ee893c Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 10 May 2013 17:42:33 +0530 Subject: mmc: omap_hsmmc: Fix the DT pbias workaround for MMC controllers 2 to 5 Otherwise SDIO cards won't necessarily work when booted with device tree as we will never power down the SDIO cards. This means the SDIO card reset does not happen which at least some WLAN controllers expect to happen with ifconfig wlan0 down. The PBIAS voltage is only available for the first controller instance, so let's limit the PBIAS workaround to the first controller only. Signed-off-by: Tony Lindgren Tested-by: Luciano Coelho Signed-off-by: Balaji T K Signed-off-by: Chris Ball --- drivers/mmc/host/omap_hsmmc.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 6e44025acf01..29a63d2839ec 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -161,6 +161,7 @@ struct omap_hsmmc_host { */ struct regulator *vcc; struct regulator *vcc_aux; + int pbias_disable; void __iomem *base; resource_size_t mapbase; spinlock_t irq_lock; /* Prevent races with irq handler */ @@ -255,11 +256,11 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on, if (!host->vcc) return 0; /* - * With DT, never turn OFF the regulator. This is because + * With DT, never turn OFF the regulator for MMC1. This is because * the pbias cell programming support is still missing when * booting with Device tree */ - if (dev->of_node && !vdd) + if (host->pbias_disable && !vdd) return 0; if (mmc_slot(host).before_set_reg) @@ -1520,10 +1521,10 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) (ios->vdd == DUAL_VOLT_OCR_BIT) && /* * With pbias cell programming missing, this - * can't be allowed when booting with device + * can't be allowed on MMC1 when booting with device * tree. */ - !host->dev->of_node) { + !host->pbias_disable) { /* * The mmc_select_voltage fn of the core does * not seem to set the power_mode to @@ -1871,6 +1872,10 @@ static int omap_hsmmc_probe(struct platform_device *pdev) omap_hsmmc_context_save(host); + /* This can be removed once we support PBIAS with DT */ + if (host->dev->of_node && host->mapbase == 0x4809c000) + host->pbias_disable = 1; + host->dbclk = clk_get(&pdev->dev, "mmchsdb_fck"); /* * MMC can still work without debounce clock. -- cgit v1.2.3 From d272fbf0ca4a59339c768d76858f4add6ff36ace Mon Sep 17 00:00:00 2001 From: Matt Porter Date: Fri, 10 May 2013 17:42:34 +0530 Subject: mmc: omap_hsmmc: convert to dma_request_slave_channel_compat Convert dmaengine channel requests to use dma_request_slave_channel_compat(). This supports platforms booting with or without DT populated. Signed-off-by: Matt Porter Acked-by: Tony Lindgren Acked-by: Arnd Bergmann Signed-off-by: Balaji T K Signed-off-by: Chris Ball --- drivers/mmc/host/omap_hsmmc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 29a63d2839ec..dc89aead35a5 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1930,14 +1930,20 @@ static int omap_hsmmc_probe(struct platform_device *pdev) dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - host->rx_chan = dma_request_channel(mask, omap_dma_filter_fn, &rx_req); + host->rx_chan = + dma_request_slave_channel_compat(mask, omap_dma_filter_fn, + &rx_req, &pdev->dev, "rx"); + if (!host->rx_chan) { dev_err(mmc_dev(host->mmc), "unable to obtain RX DMA engine channel %u\n", rx_req); ret = -ENXIO; goto err_irq; } - host->tx_chan = dma_request_channel(mask, omap_dma_filter_fn, &tx_req); + host->tx_chan = + dma_request_slave_channel_compat(mask, omap_dma_filter_fn, + &tx_req, &pdev->dev, "tx"); + if (!host->tx_chan) { dev_err(mmc_dev(host->mmc), "unable to obtain TX DMA engine channel %u\n", tx_req); ret = -ENXIO; -- cgit v1.2.3 From 4a29b5591faf25555fdf2b717594d50f70c15066 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Fri, 10 May 2013 17:42:35 +0530 Subject: mmc: omap_hsmmc: Skip platform_get_resource_byname() for dt case MMC driver probe will abort for DT case because of failed platform_get_resource_byname() lookup. Fix it by skipping resource lookup byname for device tree build. Issue is hidden because hwmod populates the IO resources which helps to succeed platform_get_resource_byname() and probe. Signed-off-by: Santosh Shilimkar Signed-off-by: Balaji T K Signed-off-by: Chris Ball --- drivers/mmc/host/omap_hsmmc.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index dc89aead35a5..eccedc7d06a4 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1911,21 +1911,23 @@ static int omap_hsmmc_probe(struct platform_device *pdev) omap_hsmmc_conf_bus_power(host); - res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); - if (!res) { - dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n"); - ret = -ENXIO; - goto err_irq; - } - tx_req = res->start; + if (!pdev->dev.of_node) { + res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx"); + if (!res) { + dev_err(mmc_dev(host->mmc), "cannot get DMA TX channel\n"); + ret = -ENXIO; + goto err_irq; + } + tx_req = res->start; - res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); - if (!res) { - dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n"); - ret = -ENXIO; - goto err_irq; + res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx"); + if (!res) { + dev_err(mmc_dev(host->mmc), "cannot get DMA RX channel\n"); + ret = -ENXIO; + goto err_irq; + } + rx_req = res->start; } - rx_req = res->start; dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); -- cgit v1.2.3 From a87783699b23395c46bbeeb5d28f6db24897bf26 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Wed, 22 May 2013 10:48:10 +0300 Subject: iwlwifi: dvm: fix zero LQ CMD sending avoidance In 63b77bf489881747c5118476918cc8c29378ee63 iwlwifi: dvm: don't send zeroed LQ cmd I tried to avoid to send zeroed LQ cmd, but I made a (very) stupid mistake in the memcmp. Since this patch has been ported to stable, the fix should go to stable too. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58341 Cc: stable@vger.kernel.org Reported-by: Hinnerk van Bruinehsen Signed-off-by: Emmanuel Grumbach Signed-off-by: Johannes Berg --- drivers/net/wireless/iwlwifi/dvm/sta.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c index db183b44e038..c3c13ce96eb0 100644 --- a/drivers/net/wireless/iwlwifi/dvm/sta.c +++ b/drivers/net/wireless/iwlwifi/dvm/sta.c @@ -735,7 +735,7 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) memcpy(&lq, priv->stations[i].lq, sizeof(struct iwl_link_quality_cmd)); - if (!memcmp(&lq, &zero_lq, sizeof(lq))) + if (memcmp(&lq, &zero_lq, sizeof(lq))) send_lq = true; } spin_unlock_bh(&priv->sta_lock); -- cgit v1.2.3 From d9f998639f539613bb25cbbca380c81c892d586c Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Thu, 16 May 2013 21:33:18 -0700 Subject: pinctrl: samsung: fix suspend/resume functionality The GPIO states need to be restored after s2r and this is not currently supported in the pinctrl driver. This patch saves the gpio states before suspend and restores them after resume. Saving and restoring is done very early using syscore_ops and must happen before pins are released from their powerdown state. Patch originally from Prathyush K but rewritten by Doug Anderson . Signed-off-by: Prathyush K Signed-off-by: Doug Anderson Tested-by: Tomasz Figa Acked-by: Kukjin Kim Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-samsung.c | 148 ++++++++++++++++++++++++++++++++++++++ drivers/pinctrl/pinctrl-samsung.h | 5 ++ 2 files changed, 153 insertions(+) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c index 055d0162098b..15db2580c145 100644 --- a/drivers/pinctrl/pinctrl-samsung.c +++ b/drivers/pinctrl/pinctrl-samsung.c @@ -28,6 +28,7 @@ #include #include #include +#include #include "core.h" #include "pinctrl-samsung.h" @@ -48,6 +49,9 @@ static struct pin_config { { "samsung,pin-pud-pdn", PINCFG_TYPE_PUD_PDN }, }; +/* Global list of devices (struct samsung_pinctrl_drv_data) */ +LIST_HEAD(drvdata_list); + static unsigned int pin_base; static inline struct samsung_pin_bank *gc_to_pin_bank(struct gpio_chip *gc) @@ -956,9 +960,145 @@ static int samsung_pinctrl_probe(struct platform_device *pdev) ctrl->eint_wkup_init(drvdata); platform_set_drvdata(pdev, drvdata); + + /* Add to the global list */ + list_add_tail(&drvdata->node, &drvdata_list); + return 0; } +#ifdef CONFIG_PM + +/** + * samsung_pinctrl_suspend_dev - save pinctrl state for suspend for a device + * + * Save data for all banks handled by this device. + */ +static void samsung_pinctrl_suspend_dev( + struct samsung_pinctrl_drv_data *drvdata) +{ + struct samsung_pin_ctrl *ctrl = drvdata->ctrl; + void __iomem *virt_base = drvdata->virt_base; + int i; + + for (i = 0; i < ctrl->nr_banks; i++) { + struct samsung_pin_bank *bank = &ctrl->pin_banks[i]; + void __iomem *reg = virt_base + bank->pctl_offset; + + u8 *offs = bank->type->reg_offset; + u8 *widths = bank->type->fld_width; + enum pincfg_type type; + + /* Registers without a powerdown config aren't lost */ + if (!widths[PINCFG_TYPE_CON_PDN]) + continue; + + for (type = 0; type < PINCFG_TYPE_NUM; type++) + if (widths[type]) + bank->pm_save[type] = readl(reg + offs[type]); + + if (widths[PINCFG_TYPE_FUNC] * bank->nr_pins > 32) { + /* Some banks have two config registers */ + bank->pm_save[PINCFG_TYPE_NUM] = + readl(reg + offs[PINCFG_TYPE_FUNC] + 4); + pr_debug("Save %s @ %p (con %#010x %08x)\n", + bank->name, reg, + bank->pm_save[PINCFG_TYPE_FUNC], + bank->pm_save[PINCFG_TYPE_NUM]); + } else { + pr_debug("Save %s @ %p (con %#010x)\n", bank->name, + reg, bank->pm_save[PINCFG_TYPE_FUNC]); + } + } +} + +/** + * samsung_pinctrl_resume_dev - restore pinctrl state from suspend for a device + * + * Restore one of the banks that was saved during suspend. + * + * We don't bother doing anything complicated to avoid glitching lines since + * we're called before pad retention is turned off. + */ +static void samsung_pinctrl_resume_dev(struct samsung_pinctrl_drv_data *drvdata) +{ + struct samsung_pin_ctrl *ctrl = drvdata->ctrl; + void __iomem *virt_base = drvdata->virt_base; + int i; + + for (i = 0; i < ctrl->nr_banks; i++) { + struct samsung_pin_bank *bank = &ctrl->pin_banks[i]; + void __iomem *reg = virt_base + bank->pctl_offset; + + u8 *offs = bank->type->reg_offset; + u8 *widths = bank->type->fld_width; + enum pincfg_type type; + + /* Registers without a powerdown config aren't lost */ + if (!widths[PINCFG_TYPE_CON_PDN]) + continue; + + if (widths[PINCFG_TYPE_FUNC] * bank->nr_pins > 32) { + /* Some banks have two config registers */ + pr_debug("%s @ %p (con %#010x %08x => %#010x %08x)\n", + bank->name, reg, + readl(reg + offs[PINCFG_TYPE_FUNC]), + readl(reg + offs[PINCFG_TYPE_FUNC] + 4), + bank->pm_save[PINCFG_TYPE_FUNC], + bank->pm_save[PINCFG_TYPE_NUM]); + writel(bank->pm_save[PINCFG_TYPE_NUM], + reg + offs[PINCFG_TYPE_FUNC] + 4); + } else { + pr_debug("%s @ %p (con %#010x => %#010x)\n", bank->name, + reg, readl(reg + offs[PINCFG_TYPE_FUNC]), + bank->pm_save[PINCFG_TYPE_FUNC]); + } + for (type = 0; type < PINCFG_TYPE_NUM; type++) + if (widths[type]) + writel(bank->pm_save[type], reg + offs[type]); + } +} + +/** + * samsung_pinctrl_suspend - save pinctrl state for suspend + * + * Save data for all banks across all devices. + */ +static int samsung_pinctrl_suspend(void) +{ + struct samsung_pinctrl_drv_data *drvdata; + + list_for_each_entry(drvdata, &drvdata_list, node) { + samsung_pinctrl_suspend_dev(drvdata); + } + + return 0; +} + +/** + * samsung_pinctrl_resume - restore pinctrl state for suspend + * + * Restore data for all banks across all devices. + */ +static void samsung_pinctrl_resume(void) +{ + struct samsung_pinctrl_drv_data *drvdata; + + list_for_each_entry_reverse(drvdata, &drvdata_list, node) { + samsung_pinctrl_resume_dev(drvdata); + } +} + +#else +#define samsung_pinctrl_suspend NULL +#define samsung_pinctrl_resume NULL +#endif + +static struct syscore_ops samsung_pinctrl_syscore_ops = { + .suspend = samsung_pinctrl_suspend, + .resume = samsung_pinctrl_resume, +}; + static const struct of_device_id samsung_pinctrl_dt_match[] = { #ifdef CONFIG_PINCTRL_EXYNOS { .compatible = "samsung,exynos4210-pinctrl", @@ -987,6 +1127,14 @@ static struct platform_driver samsung_pinctrl_driver = { static int __init samsung_pinctrl_drv_register(void) { + /* + * Register syscore ops for save/restore of registers across suspend. + * It's important to ensure that this driver is running at an earlier + * initcall level than any arch-specific init calls that install syscore + * ops that turn off pad retention (like exynos_pm_resume). + */ + register_syscore_ops(&samsung_pinctrl_syscore_ops); + return platform_driver_register(&samsung_pinctrl_driver); } postcore_initcall(samsung_pinctrl_drv_register); diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h index 7c7f9ebcd05b..9f5cc811b8cf 100644 --- a/drivers/pinctrl/pinctrl-samsung.h +++ b/drivers/pinctrl/pinctrl-samsung.h @@ -127,6 +127,7 @@ struct samsung_pin_bank_type { * @gpio_chip: GPIO chip of the bank. * @grange: linux gpio pin range supported by this bank. * @slock: spinlock protecting bank registers + * @pm_save: saved register values during suspend */ struct samsung_pin_bank { struct samsung_pin_bank_type *type; @@ -144,6 +145,8 @@ struct samsung_pin_bank { struct gpio_chip gpio_chip; struct pinctrl_gpio_range grange; spinlock_t slock; + + u32 pm_save[PINCFG_TYPE_NUM + 1]; /* +1 to handle double CON registers*/ }; /** @@ -189,6 +192,7 @@ struct samsung_pin_ctrl { /** * struct samsung_pinctrl_drv_data: wrapper for holding driver data together. + * @node: global list node * @virt_base: register base address of the controller. * @dev: device instance representing the controller. * @irq: interrpt number used by the controller to notify gpio interrupts. @@ -201,6 +205,7 @@ struct samsung_pin_ctrl { * @nr_function: number of such pin functions. */ struct samsung_pinctrl_drv_data { + struct list_head node; void __iomem *virt_base; struct device *dev; int irq; -- cgit v1.2.3 From ad350cd9d5411353397843c8f410a6e7e84a71f9 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Fri, 17 May 2013 18:24:27 +0200 Subject: pinctrl: exynos: Add support for set_irq_wake of wake-up EINTs This patch adds support of IRQ wake-up ability configuration for wake-up EINTs on Exynos SoCs. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Tested-by: Doug Anderson Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-exynos.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c index ac742817ebce..4f868e59227e 100644 --- a/drivers/pinctrl/pinctrl-exynos.c +++ b/drivers/pinctrl/pinctrl-exynos.c @@ -326,6 +326,28 @@ static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type) return 0; } +static u32 exynos_eint_wake_mask = 0xffffffff; + +u32 exynos_get_eint_wake_mask(void) +{ + return exynos_eint_wake_mask; +} + +static int exynos_wkup_irq_set_wake(struct irq_data *irqd, unsigned int on) +{ + struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd); + unsigned long bit = 1UL << (2 * bank->eint_offset + irqd->hwirq); + + pr_info("wake %s for irq %d\n", on ? "enabled" : "disabled", irqd->irq); + + if (!on) + exynos_eint_wake_mask |= bit; + else + exynos_eint_wake_mask &= ~bit; + + return 0; +} + /* * irq_chip for wakeup interrupts */ @@ -335,6 +357,7 @@ static struct irq_chip exynos_wkup_irq_chip = { .irq_mask = exynos_wkup_irq_mask, .irq_ack = exynos_wkup_irq_ack, .irq_set_type = exynos_wkup_irq_set_type, + .irq_set_wake = exynos_wkup_irq_set_wake, }; /* interrupt handler for wakeup interrupts 0..15 */ -- cgit v1.2.3 From 97fc463769f1564e8eda2e2f70d3b6e92a25ff16 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 19 May 2013 13:58:37 +0800 Subject: pinctrl: Don't override the error code in probe error handling Otherwise, we return 0 in probe error paths when gpiochip_remove() returns 0. Also show error message if gpiochip_remove() fails. Signed-off-by: Axel Lin Acked-by: Tony Prisk Acked-by: Maxime Ripard Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-coh901.c | 3 ++- drivers/pinctrl/pinctrl-sunxi.c | 3 ++- drivers/pinctrl/vt8500/pinctrl-wmt.c | 3 +-- 3 files changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c index a67af419f531..d6b41747d687 100644 --- a/drivers/pinctrl/pinctrl-coh901.c +++ b/drivers/pinctrl/pinctrl-coh901.c @@ -830,7 +830,8 @@ static int __init u300_gpio_probe(struct platform_device *pdev) return 0; err_no_range: - err = gpiochip_remove(&gpio->chip); + if (gpiochip_remove(&gpio->chip)) + dev_err(&pdev->dev, "failed to remove gpio chip\n"); err_no_chip: err_no_domain: err_no_port: diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c index c52fc2c08732..c058529db8f6 100644 --- a/drivers/pinctrl/pinctrl-sunxi.c +++ b/drivers/pinctrl/pinctrl-sunxi.c @@ -2000,7 +2000,8 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev) return 0; gpiochip_error: - ret = gpiochip_remove(pctl->chip); + if (gpiochip_remove(pctl->chip)) + dev_err(&pdev->dev, "failed to remove gpio chip\n"); pinctrl_error: pinctrl_unregister(pctl->pctl_dev); return ret; diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.c b/drivers/pinctrl/vt8500/pinctrl-wmt.c index ab63104e8dc9..70d986e04afb 100644 --- a/drivers/pinctrl/vt8500/pinctrl-wmt.c +++ b/drivers/pinctrl/vt8500/pinctrl-wmt.c @@ -609,8 +609,7 @@ int wmt_pinctrl_probe(struct platform_device *pdev, return 0; fail_range: - err = gpiochip_remove(&data->gpio_chip); - if (err) + if (gpiochip_remove(&data->gpio_chip)) dev_err(&pdev->dev, "failed to remove gpio chip\n"); fail_gpio: pinctrl_unregister(data->pctl_dev); -- cgit v1.2.3 From 21c219933fd123d4cdfc8853f51c41330b9d6c28 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Fri, 17 May 2013 18:24:30 +0200 Subject: pinctrl: samsung: Add support for SoC-specific suspend/resume callbacks SoC-specific driver might require additional save and restore of registers. This patch adds pair of SoC-specific callbacks per pinctrl device to account for this. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Tested-by: Doug Anderson Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-samsung.c | 6 ++++++ drivers/pinctrl/pinctrl-samsung.h | 3 +++ 2 files changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c index 15db2580c145..63ac22e89678 100644 --- a/drivers/pinctrl/pinctrl-samsung.c +++ b/drivers/pinctrl/pinctrl-samsung.c @@ -1010,6 +1010,9 @@ static void samsung_pinctrl_suspend_dev( reg, bank->pm_save[PINCFG_TYPE_FUNC]); } } + + if (ctrl->suspend) + ctrl->suspend(drvdata); } /** @@ -1026,6 +1029,9 @@ static void samsung_pinctrl_resume_dev(struct samsung_pinctrl_drv_data *drvdata) void __iomem *virt_base = drvdata->virt_base; int i; + if (ctrl->resume) + ctrl->resume(drvdata); + for (i = 0; i < ctrl->nr_banks; i++) { struct samsung_pin_bank *bank = &ctrl->pin_banks[i]; void __iomem *reg = virt_base + bank->pctl_offset; diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h index 9f5cc811b8cf..b316d9fe9b6b 100644 --- a/drivers/pinctrl/pinctrl-samsung.h +++ b/drivers/pinctrl/pinctrl-samsung.h @@ -187,6 +187,9 @@ struct samsung_pin_ctrl { int (*eint_gpio_init)(struct samsung_pinctrl_drv_data *); int (*eint_wkup_init)(struct samsung_pinctrl_drv_data *); + void (*suspend)(struct samsung_pinctrl_drv_data *); + void (*resume)(struct samsung_pinctrl_drv_data *); + char *label; }; -- cgit v1.2.3 From 3385474c3a2f5e81df67cba426c29beefd8a5c18 Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Fri, 17 May 2013 18:24:31 +0200 Subject: pinctrl: samsung: Allow per-bank SoC-specific private data This patch extends pin bank descriptor structure with SoC-specific private data field that allows SoC-specific drivers to store their own private data. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Tested-by: Doug Anderson Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-samsung.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h index b316d9fe9b6b..26d3519240c9 100644 --- a/drivers/pinctrl/pinctrl-samsung.h +++ b/drivers/pinctrl/pinctrl-samsung.h @@ -139,6 +139,7 @@ struct samsung_pin_bank { u32 eint_mask; u32 eint_offset; char *name; + void *soc_priv; struct device_node *of_node; struct samsung_pinctrl_drv_data *drvdata; struct irq_domain *irq_domain; -- cgit v1.2.3 From 7ccbc60cd9c293304829662b043f4356f554fc3a Mon Sep 17 00:00:00 2001 From: Tomasz Figa Date: Wed, 22 May 2013 16:03:17 +0200 Subject: pinctrl: exynos: Handle suspend/resume of GPIO EINT registers Some GPIO EINT control registers needs to be preserved across suspend/resume cycle. This patch extends the driver to take care of this. Signed-off-by: Tomasz Figa Signed-off-by: Kyungmin Park Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-exynos.c | 116 ++++++++++++++++++++++++++++++++++++++- drivers/pinctrl/pinctrl-exynos.h | 1 + 2 files changed, 114 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c index 4f868e59227e..2d76f66a2e0b 100644 --- a/drivers/pinctrl/pinctrl-exynos.c +++ b/drivers/pinctrl/pinctrl-exynos.c @@ -196,6 +196,12 @@ static irqreturn_t exynos_eint_gpio_irq(int irq, void *data) return IRQ_HANDLED; } +struct exynos_eint_gpio_save { + u32 eint_con; + u32 eint_fltcon0; + u32 eint_fltcon1; +}; + /* * exynos_eint_gpio_init() - setup handling of external gpio interrupts. * @d: driver data of samsung pinctrl driver. @@ -204,8 +210,8 @@ static int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) { struct samsung_pin_bank *bank; struct device *dev = d->dev; - unsigned int ret; - unsigned int i; + int ret; + int i; if (!d->irq) { dev_err(dev, "irq number not available\n"); @@ -227,11 +233,29 @@ static int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d) bank->nr_pins, &exynos_gpio_irqd_ops, bank); if (!bank->irq_domain) { dev_err(dev, "gpio irq domain add failed\n"); - return -ENXIO; + ret = -ENXIO; + goto err_domains; + } + + bank->soc_priv = devm_kzalloc(d->dev, + sizeof(struct exynos_eint_gpio_save), GFP_KERNEL); + if (!bank->soc_priv) { + irq_domain_remove(bank->irq_domain); + ret = -ENOMEM; + goto err_domains; } } return 0; + +err_domains: + for (--i, --bank; i >= 0; --i, --bank) { + if (bank->eint_type != EINT_TYPE_GPIO) + continue; + irq_domain_remove(bank->irq_domain); + } + + return ret; } static void exynos_wkup_irq_unmask(struct irq_data *irqd) @@ -528,6 +552,72 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d) return 0; } +static void exynos_pinctrl_suspend_bank( + struct samsung_pinctrl_drv_data *drvdata, + struct samsung_pin_bank *bank) +{ + struct exynos_eint_gpio_save *save = bank->soc_priv; + void __iomem *regs = drvdata->virt_base; + + save->eint_con = readl(regs + EXYNOS_GPIO_ECON_OFFSET + + bank->eint_offset); + save->eint_fltcon0 = readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET + + 2 * bank->eint_offset); + save->eint_fltcon1 = readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET + + 2 * bank->eint_offset + 4); + + pr_debug("%s: save con %#010x\n", bank->name, save->eint_con); + pr_debug("%s: save fltcon0 %#010x\n", bank->name, save->eint_fltcon0); + pr_debug("%s: save fltcon1 %#010x\n", bank->name, save->eint_fltcon1); +} + +static void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata) +{ + struct samsung_pin_ctrl *ctrl = drvdata->ctrl; + struct samsung_pin_bank *bank = ctrl->pin_banks; + int i; + + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) + if (bank->eint_type == EINT_TYPE_GPIO) + exynos_pinctrl_suspend_bank(drvdata, bank); +} + +static void exynos_pinctrl_resume_bank( + struct samsung_pinctrl_drv_data *drvdata, + struct samsung_pin_bank *bank) +{ + struct exynos_eint_gpio_save *save = bank->soc_priv; + void __iomem *regs = drvdata->virt_base; + + pr_debug("%s: con %#010x => %#010x\n", bank->name, + readl(regs + EXYNOS_GPIO_ECON_OFFSET + + bank->eint_offset), save->eint_con); + pr_debug("%s: fltcon0 %#010x => %#010x\n", bank->name, + readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET + + 2 * bank->eint_offset), save->eint_fltcon0); + pr_debug("%s: fltcon1 %#010x => %#010x\n", bank->name, + readl(regs + EXYNOS_GPIO_EFLTCON_OFFSET + + 2 * bank->eint_offset + 4), save->eint_fltcon1); + + writel(save->eint_con, regs + EXYNOS_GPIO_ECON_OFFSET + + bank->eint_offset); + writel(save->eint_fltcon0, regs + EXYNOS_GPIO_EFLTCON_OFFSET + + 2 * bank->eint_offset); + writel(save->eint_fltcon1, regs + EXYNOS_GPIO_EFLTCON_OFFSET + + 2 * bank->eint_offset + 4); +} + +static void exynos_pinctrl_resume(struct samsung_pinctrl_drv_data *drvdata) +{ + struct samsung_pin_ctrl *ctrl = drvdata->ctrl; + struct samsung_pin_bank *bank = ctrl->pin_banks; + int i; + + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) + if (bank->eint_type == EINT_TYPE_GPIO) + exynos_pinctrl_resume_bank(drvdata, bank); +} + /* pin banks of exynos4210 pin-controller 0 */ static struct samsung_pin_bank exynos4210_pin_banks0[] = { EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00), @@ -591,6 +681,8 @@ struct samsung_pin_ctrl exynos4210_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos4210-gpio-ctrl0", }, { /* pin-controller instance 1 data */ @@ -605,6 +697,8 @@ struct samsung_pin_ctrl exynos4210_pin_ctrl[] = { .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, .eint_wkup_init = exynos_eint_wkup_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos4210-gpio-ctrl1", }, { /* pin-controller instance 2 data */ @@ -686,6 +780,8 @@ struct samsung_pin_ctrl exynos4x12_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos4x12-gpio-ctrl0", }, { /* pin-controller instance 1 data */ @@ -700,6 +796,8 @@ struct samsung_pin_ctrl exynos4x12_pin_ctrl[] = { .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, .eint_wkup_init = exynos_eint_wkup_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos4x12-gpio-ctrl1", }, { /* pin-controller instance 2 data */ @@ -710,6 +808,8 @@ struct samsung_pin_ctrl exynos4x12_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos4x12-gpio-ctrl2", }, { /* pin-controller instance 3 data */ @@ -720,6 +820,8 @@ struct samsung_pin_ctrl exynos4x12_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos4x12-gpio-ctrl3", }, }; @@ -798,6 +900,8 @@ struct samsung_pin_ctrl exynos5250_pin_ctrl[] = { .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, .eint_wkup_init = exynos_eint_wkup_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos5250-gpio-ctrl0", }, { /* pin-controller instance 1 data */ @@ -808,6 +912,8 @@ struct samsung_pin_ctrl exynos5250_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos5250-gpio-ctrl1", }, { /* pin-controller instance 2 data */ @@ -818,6 +924,8 @@ struct samsung_pin_ctrl exynos5250_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos5250-gpio-ctrl2", }, { /* pin-controller instance 3 data */ @@ -828,6 +936,8 @@ struct samsung_pin_ctrl exynos5250_pin_ctrl[] = { .geint_pend = EXYNOS_GPIO_EPEND_OFFSET, .svc = EXYNOS_SVC_OFFSET, .eint_gpio_init = exynos_eint_gpio_init, + .suspend = exynos_pinctrl_suspend, + .resume = exynos_pinctrl_resume, .label = "exynos5250-gpio-ctrl3", }, }; diff --git a/drivers/pinctrl/pinctrl-exynos.h b/drivers/pinctrl/pinctrl-exynos.h index 9b1f77a5bf0f..3c91c357792f 100644 --- a/drivers/pinctrl/pinctrl-exynos.h +++ b/drivers/pinctrl/pinctrl-exynos.h @@ -19,6 +19,7 @@ /* External GPIO and wakeup interrupt related definitions */ #define EXYNOS_GPIO_ECON_OFFSET 0x700 +#define EXYNOS_GPIO_EFLTCON_OFFSET 0x800 #define EXYNOS_GPIO_EMASK_OFFSET 0x900 #define EXYNOS_GPIO_EPEND_OFFSET 0xA00 #define EXYNOS_WKUP_ECON_OFFSET 0xE00 -- cgit v1.2.3 From d72f88a42bf9761e3a92e58879d25a65712ca87a Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 23 May 2013 17:32:14 +0800 Subject: pinctrl: sunxi: fix error return code in sunxi_pinctrl_probe() Fix to return a negative error code from the devm_clk_get() error handling case instead of 0, as done elsewhere in this function. Introduced by commit 950707c0eb5c7aeaa2c446a04c824f4be686d2f6 (pinctrl: sunxi: add clock support) Signed-off-by: Wei Yongjun Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-sunxi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c index c058529db8f6..b7d8c890514c 100644 --- a/drivers/pinctrl/pinctrl-sunxi.c +++ b/drivers/pinctrl/pinctrl-sunxi.c @@ -1990,8 +1990,10 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev) } clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(clk)) + if (IS_ERR(clk)) { + ret = PTR_ERR(clk); goto gpiochip_error; + } clk_prepare_enable(clk); -- cgit v1.2.3 From a386267a2ceea33d76fa2b7f1c2e72a858fcb68e Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 27 May 2013 15:53:32 +0200 Subject: pinctrl: pinconf: take the right mutex The pinconf_dgb_config_print() takes the per-pincontroller mutex, when what it wants to take is actually the pin maps mutex. Reported-by: James Hogan Cc: Patrice Chotard Signed-off-by: Linus Walleij --- drivers/pinctrl/pinconf.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c index c67c37e23dd7..694c3ace4520 100644 --- a/drivers/pinctrl/pinconf.c +++ b/drivers/pinctrl/pinconf.c @@ -610,7 +610,7 @@ static int pinconf_dbg_config_print(struct seq_file *s, void *d) bool found = false; unsigned long config; - mutex_lock(&pctldev->mutex); + mutex_lock(&pinctrl_maps_mutex); /* Parse the pinctrl map and look for the elected pin/state */ for_each_maps(maps_node, i, map) { @@ -659,7 +659,7 @@ static int pinconf_dbg_config_print(struct seq_file *s, void *d) confops->pin_config_config_dbg_show(pctldev, s, config); exit: - mutex_unlock(&pctldev->mutex); + mutex_unlock(&pinctrl_maps_mutex); return 0; } -- cgit v1.2.3 From 9ecb41bd8cf002fd8f3e063db4df81647ddd623c Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Mon, 27 May 2013 16:03:40 +0200 Subject: dmaengine: ste_dma40: fix pm runtime ref counting The pm runtime reference counting of the driver is broken for the case when there is more than one transfer queued, leading to the device being runtime suspend while active. Fix it. Signed-off-by: Rabin Vincent Acked-by: Linus Walleij Cc: stable@vger.kernel.org Signed-off-by: Vinod Koul --- drivers/dma/ste_dma40.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 1734feec47b1..71bf4ec300ea 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -1566,10 +1566,12 @@ static void dma_tc_handle(struct d40_chan *d40c) return; } - if (d40_queue_start(d40c) == NULL) + if (d40_queue_start(d40c) == NULL) { d40c->busy = false; - pm_runtime_mark_last_busy(d40c->base->dev); - pm_runtime_put_autosuspend(d40c->base->dev); + + pm_runtime_mark_last_busy(d40c->base->dev); + pm_runtime_put_autosuspend(d40c->base->dev); + } d40_desc_remove(d40d); d40_desc_done(d40c, d40d); -- cgit v1.2.3 From 9a9c56cb34e65000d1f0a4b7553399bfcf7c5a52 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Sun, 26 May 2013 21:31:28 +0000 Subject: net: phy: fix a bug when verify the EEE support The phy_init_eee has to exit with an error when the local device and its link partner both do not support EEE. So this patch fixes a problem when verify this. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/phy/phy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index c14f14741b3f..38f0b312ff85 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -1044,7 +1044,7 @@ int phy_init_eee(struct phy_device *phydev, bool clk_stop_enable) adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv); lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp); idx = phy_find_setting(phydev->speed, phydev->duplex); - if ((lp & adv & settings[idx].setting)) + if (!(lp & adv & settings[idx].setting)) goto eee_exit; if (clk_stop_enable) { -- cgit v1.2.3 From c89b65e7fffef745bdd36c372aa0dea778fecbab Mon Sep 17 00:00:00 2001 From: Andrew Jones Date: Mon, 27 May 2013 15:58:04 +0200 Subject: qxl: fix Kconfig deps - select FB_DEFERRED_IO Signed-off-by: Andrew Jones Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/qxl/Kconfig b/drivers/gpu/drm/qxl/Kconfig index 2f1a57e11140..d6c12796023c 100644 --- a/drivers/gpu/drm/qxl/Kconfig +++ b/drivers/gpu/drm/qxl/Kconfig @@ -4,6 +4,7 @@ config DRM_QXL select FB_SYS_FILLRECT select FB_SYS_COPYAREA select FB_SYS_IMAGEBLIT + select FB_DEFERRED_IO select DRM_KMS_HELPER select DRM_TTM help -- cgit v1.2.3 From 1d7004f0593f631b78745e4c835d8e09b31f4996 Mon Sep 17 00:00:00 2001 From: Frederico Cadete Date: Sat, 25 May 2013 22:48:57 +0200 Subject: xmem/tmem: fix 'undefined variable' build error. In the (not so useful) kernel configuration where CONFIG_SWAP is undefined and CONFIG_XEN_SELFBALLOONING is defined, xen_tmem_init would use undefined variable 'static bool frontswap'. Added #else to have #define frontswap (0) in the case where CONFIG_FRONTSWAP is not defined. Signed-off-by: Frederico Cadete Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/tmem.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/xen/tmem.c b/drivers/xen/tmem.c index 18e8bd8fa947..cc072c66c766 100644 --- a/drivers/xen/tmem.c +++ b/drivers/xen/tmem.c @@ -41,6 +41,8 @@ module_param(selfballooning, bool, S_IRUGO); #ifdef CONFIG_FRONTSWAP static bool frontswap __read_mostly = true; module_param(frontswap, bool, S_IRUGO); +#else /* CONFIG_FRONTSWAP */ +#define frontswap (0) #endif /* CONFIG_FRONTSWAP */ #ifdef CONFIG_XEN_SELFBALLOONING -- cgit v1.2.3 From b3657453f16a7b84eab9b93bb9a9a2901ffc70af Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Mon, 27 May 2013 21:09:53 +0200 Subject: brcmfmac: Turn off ARP offloading when configured for AP. ARP offloading should only be used in STA or P2P client mode. It is currently configured once at init. When being configured for AP ARP offloading should be turned off and when AP mode is left it can be turned back on. Cc: stable@vger.kernel.org Reviewed-by: Arend Van Spriel Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../net/wireless/brcm80211/brcmfmac/dhd_common.c | 18 ---------- .../net/wireless/brcm80211/brcmfmac/fwil_types.h | 6 ++++ .../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 40 +++++++++++++++++++++- 3 files changed, 45 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c index be0787cab24f..9431af2465f3 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c @@ -27,7 +27,6 @@ #include "tracepoint.h" #define PKTFILTER_BUF_SIZE 128 -#define BRCMF_ARPOL_MODE 0xb /* agent|snoop|peer_autoreply */ #define BRCMF_DEFAULT_BCN_TIMEOUT 3 #define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40 #define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40 @@ -338,23 +337,6 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp) goto done; } - /* Try to set and enable ARP offload feature, this may fail */ - err = brcmf_fil_iovar_int_set(ifp, "arp_ol", BRCMF_ARPOL_MODE); - if (err) { - brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n", - BRCMF_ARPOL_MODE, err); - err = 0; - } else { - err = brcmf_fil_iovar_int_set(ifp, "arpoe", 1); - if (err) { - brcmf_dbg(TRACE, "failed to enable ARP offload err = %d\n", - err); - err = 0; - } else - brcmf_dbg(TRACE, "successfully enabled ARP offload to 0x%x\n", - BRCMF_ARPOL_MODE); - } - /* Setup packet filter */ brcmf_c_pktfilter_offload_set(ifp, BRCMF_DEFAULT_PACKET_FILTER); brcmf_c_pktfilter_offload_enable(ifp, BRCMF_DEFAULT_PACKET_FILTER, diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h index 0f2c83bc95dc..665ef69e974b 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/fwil_types.h @@ -23,6 +23,12 @@ #define BRCMF_FIL_ACTION_FRAME_SIZE 1800 +/* ARP Offload feature flags for arp_ol iovar */ +#define BRCMF_ARP_OL_AGENT 0x00000001 +#define BRCMF_ARP_OL_SNOOP 0x00000002 +#define BRCMF_ARP_OL_HOST_AUTO_REPLY 0x00000004 +#define BRCMF_ARP_OL_PEER_AUTO_REPLY 0x00000008 + enum brcmf_fil_p2p_if_types { BRCMF_FIL_P2P_IF_CLIENT, diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 761f501959a9..94285f634a48 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -459,6 +459,38 @@ send_key_to_dongle(struct net_device *ndev, struct brcmf_wsec_key *key) return err; } +static s32 +brcmf_configure_arp_offload(struct brcmf_if *ifp, bool enable) +{ + s32 err; + u32 mode; + + if (enable) + mode = BRCMF_ARP_OL_AGENT | BRCMF_ARP_OL_PEER_AUTO_REPLY; + else + mode = 0; + + /* Try to set and enable ARP offload feature, this may fail, then it */ + /* is simply not supported and err 0 will be returned */ + err = brcmf_fil_iovar_int_set(ifp, "arp_ol", mode); + if (err) { + brcmf_dbg(TRACE, "failed to set ARP offload mode to 0x%x, err = %d\n", + mode, err); + err = 0; + } else { + err = brcmf_fil_iovar_int_set(ifp, "arpoe", enable); + if (err) { + brcmf_dbg(TRACE, "failed to configure (%d) ARP offload err = %d\n", + enable, err); + err = 0; + } else + brcmf_dbg(TRACE, "successfully configured (%d) ARP offload to 0x%x\n", + enable, mode); + } + + return err; +} + static struct wireless_dev *brcmf_cfg80211_add_iface(struct wiphy *wiphy, const char *name, enum nl80211_iftype type, @@ -3683,6 +3715,7 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, } brcmf_set_mpc(ifp, 0); + brcmf_configure_arp_offload(ifp, false); /* find the RSN_IE */ rsn_ie = brcmf_parse_tlvs((u8 *)settings->beacon.tail, @@ -3789,8 +3822,10 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, set_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); exit: - if (err) + if (err) { brcmf_set_mpc(ifp, 1); + brcmf_configure_arp_offload(ifp, true); + } return err; } @@ -3831,6 +3866,7 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) brcmf_err("bss_enable config failed %d\n", err); } brcmf_set_mpc(ifp, 1); + brcmf_configure_arp_offload(ifp, true); set_bit(BRCMF_VIF_STATUS_AP_CREATING, &ifp->vif->sme_state); clear_bit(BRCMF_VIF_STATUS_AP_CREATED, &ifp->vif->sme_state); @@ -5229,6 +5265,8 @@ static s32 brcmf_config_dongle(struct brcmf_cfg80211_info *cfg) if (err) goto default_conf_out; + brcmf_configure_arp_offload(ifp, true); + cfg->dongle_up = true; default_conf_out: -- cgit v1.2.3 From 15a953d0919e3e7c94691ecabd0d9f74373f19aa Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Mon, 27 May 2013 21:09:54 +0200 Subject: brcmfmac: Fix p2p setup when connected to ap on 5G. The firmware requires that on p2p setup when net interfaces are created or updated that they start initially with the same channel as the channel in use for the current connection (if any). If none exists take default channel 11. Reviewed-by: Arend Van Spriel Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 28 ++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index e7a1a4770996..17275ceb686c 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -47,6 +47,7 @@ #define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \ (channel == SOCIAL_CHAN_2) || \ (channel == SOCIAL_CHAN_3)) +#define BRCMF_P2P_TEMP_CHAN SOCIAL_CHAN_3 #define SOCIAL_CHAN_CNT 3 #define AF_PEER_SEARCH_CNT 2 @@ -2013,17 +2014,30 @@ static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p, u16 *chanspec) { struct brcmf_if *ifp; - struct brcmf_fil_chan_info_le ci; + u8 mac_addr[ETH_ALEN]; struct brcmu_chan ch; - s32 err; + struct brcmf_bss_info_le *bi; + u8 *buf; ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp; - ch.chnum = 11; - - err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci)); - if (!err) - ch.chnum = le32_to_cpu(ci.hw_channel); + if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mac_addr, + ETH_ALEN) == 0) { + buf = kzalloc(WL_BSS_INFO_MAX, GFP_KERNEL); + if (buf != NULL) { + *(__le32 *)buf = cpu_to_le32(WL_BSS_INFO_MAX); + if (brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSS_INFO, + buf, WL_BSS_INFO_MAX) == 0) { + bi = (struct brcmf_bss_info_le *)(buf + 4); + *chanspec = le16_to_cpu(bi->chanspec); + kfree(buf); + return; + } + kfree(buf); + } + } + /* Use default channel for P2P */ + ch.chnum = BRCMF_P2P_TEMP_CHAN; ch.bw = BRCMU_CHAN_BW_20; p2p->cfg->d11inf.encchspec(&ch); *chanspec = ch.chspec; -- cgit v1.2.3 From 24e28beef939df8666a5d2784d6617cd9bb910a0 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Mon, 27 May 2013 21:09:55 +0200 Subject: brcmfmac: add additional parameter to brcmf_free_vif() Pass the struct brcmf_cfg80211_info instance instead of obtaining through vif itself using vif->wdev. This is needed as the netdev associated with this vif is already unregistered. Reviewed-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 25 +++++++++++----------- .../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 17 ++++++--------- .../net/wireless/brcm80211/brcmfmac/wl_cfg80211.h | 3 ++- 3 files changed, 20 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index 17275ceb686c..167b7afdf0d8 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -1955,21 +1955,21 @@ s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg) err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1); if (err < 0) { brcmf_err("set p2p_disc error\n"); - brcmf_free_vif(p2p_vif); + brcmf_free_vif(cfg, p2p_vif); goto exit; } /* obtain bsscfg index for P2P discovery */ err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx); if (err < 0) { brcmf_err("retrieving discover bsscfg index failed\n"); - brcmf_free_vif(p2p_vif); + brcmf_free_vif(cfg, p2p_vif); goto exit; } /* Verify that firmware uses same bssidx as driver !! */ if (p2p_ifp->bssidx != bssidx) { brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n", bssidx, p2p_ifp->bssidx); - brcmf_free_vif(p2p_vif); + brcmf_free_vif(cfg, p2p_vif); goto exit; } @@ -1997,7 +1997,7 @@ void brcmf_p2p_detach(struct brcmf_p2p_info *p2p) brcmf_p2p_cancel_remain_on_channel(vif->ifp); brcmf_p2p_deinit_discovery(p2p); /* remove discovery interface */ - brcmf_free_vif(vif); + brcmf_free_vif(p2p->cfg, vif); p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; } /* just set it all to zero */ @@ -2222,7 +2222,7 @@ static struct wireless_dev *brcmf_p2p_create_p2pdev(struct brcmf_p2p_info *p2p, return &p2p_vif->wdev; fail: - brcmf_free_vif(p2p_vif); + brcmf_free_vif(p2p->cfg, p2p_vif); return ERR_PTR(err); } @@ -2231,13 +2231,12 @@ fail: * * @vif: virtual interface object to delete. */ -static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_vif *vif) +static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_info *cfg, + struct brcmf_cfg80211_vif *vif) { - struct brcmf_p2p_info *p2p = &vif->ifp->drvr->config->p2p; - cfg80211_unregister_wdev(&vif->wdev); - p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; - brcmf_free_vif(vif); + cfg->p2p.bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL; + brcmf_free_vif(cfg, vif); } /** @@ -2328,7 +2327,7 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, return &ifp->vif->wdev; fail: - brcmf_free_vif(vif); + brcmf_free_vif(cfg, vif); return ERR_PTR(err); } @@ -2364,7 +2363,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) break; case NL80211_IFTYPE_P2P_DEVICE: - brcmf_p2p_delete_p2pdev(vif); + brcmf_p2p_delete_p2pdev(cfg, vif); return 0; default: return -ENOTSUPP; @@ -2392,7 +2391,7 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) err = 0; } brcmf_cfg80211_arm_vif_event(cfg, NULL); - brcmf_free_vif(vif); + brcmf_free_vif(cfg, vif); p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; return err; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 94285f634a48..f8c86b58a6d1 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -4292,20 +4292,16 @@ struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, return vif; } -void brcmf_free_vif(struct brcmf_cfg80211_vif *vif) +void brcmf_free_vif(struct brcmf_cfg80211_info *cfg, + struct brcmf_cfg80211_vif *vif) { - struct brcmf_cfg80211_info *cfg; - struct wiphy *wiphy; - - wiphy = vif->wdev.wiphy; - cfg = wiphy_priv(wiphy); list_del(&vif->list); cfg->vif_cnt--; kfree(vif); if (!cfg->vif_cnt) { - wiphy_unregister(wiphy); - wiphy_free(wiphy); + wiphy_unregister(cfg->wiphy); + wiphy_free(cfg->wiphy); } } @@ -4888,8 +4884,7 @@ cfg80211_p2p_attach_out: wl_deinit_priv(cfg); cfg80211_attach_out: - brcmf_free_vif(vif); - wiphy_free(wiphy); + brcmf_free_vif(cfg, vif); return NULL; } @@ -4901,7 +4896,7 @@ void brcmf_cfg80211_detach(struct brcmf_cfg80211_info *cfg) wl_deinit_priv(cfg); brcmf_btcoex_detach(cfg); list_for_each_entry_safe(vif, tmp, &cfg->vif_list, list) { - brcmf_free_vif(vif); + brcmf_free_vif(cfg, vif); } } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h index a71cff84cdcf..d9bdaf9a72d0 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h @@ -487,7 +487,8 @@ enum nl80211_iftype brcmf_cfg80211_get_iftype(struct brcmf_if *ifp); struct brcmf_cfg80211_vif *brcmf_alloc_vif(struct brcmf_cfg80211_info *cfg, enum nl80211_iftype type, bool pm_block); -void brcmf_free_vif(struct brcmf_cfg80211_vif *vif); +void brcmf_free_vif(struct brcmf_cfg80211_info *cfg, + struct brcmf_cfg80211_vif *vif); s32 brcmf_vif_set_mgmt_ie(struct brcmf_cfg80211_vif *vif, s32 pktflag, const u8 *vndr_ie_buf, u32 vndr_ie_len); -- cgit v1.2.3 From 9390ace916b2fd866c1762b1cd16c276d8c8c890 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Mon, 27 May 2013 21:09:56 +0200 Subject: brcmfmac: free net device when registration fails When registration fails the net device is no longer needed. Free the net device and remove reference to private data from the driver. Reviewed-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c | 10 +++++++--- drivers/net/wireless/brcm80211/brcmfmac/fweh.c | 3 ++- 2 files changed, 9 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c index 59c25463e428..f04e3555dca3 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c @@ -656,7 +656,9 @@ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked) return 0; fail: + drvr->iflist[ifp->bssidx] = NULL; ndev->netdev_ops = NULL; + free_netdev(ndev); return -EBADE; } @@ -720,6 +722,9 @@ static int brcmf_net_p2p_attach(struct brcmf_if *ifp) return 0; fail: + ifp->drvr->iflist[ifp->bssidx] = NULL; + ndev->netdev_ops = NULL; + free_netdev(ndev); return -EBADE; } @@ -925,8 +930,6 @@ fail: brcmf_fws_del_interface(ifp); brcmf_fws_deinit(drvr); } - free_netdev(ifp->ndev); - drvr->iflist[0] = NULL; if (p2p_ifp) { free_netdev(p2p_ifp->ndev); drvr->iflist[1] = NULL; @@ -934,7 +937,8 @@ fail: return ret; } if ((brcmf_p2p_enable) && (p2p_ifp)) - brcmf_net_p2p_attach(p2p_ifp); + if (brcmf_net_p2p_attach(p2p_ifp) < 0) + brcmf_p2p_enable = 0; return 0; } diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c index 5a64280e6485..83ee53a7c76e 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.c @@ -202,7 +202,8 @@ static void brcmf_fweh_handle_if_event(struct brcmf_pub *drvr, return; brcmf_fws_add_interface(ifp); if (!drvr->fweh.evt_handler[BRCMF_E_IF]) - err = brcmf_net_attach(ifp, false); + if (brcmf_net_attach(ifp, false) < 0) + return; } if (ifevent->action == BRCMF_E_IF_CHANGE) -- cgit v1.2.3 From cbb371da233eb2b4c200010a5372579b880b4ae6 Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Mon, 27 May 2013 21:09:57 +0200 Subject: brcmfmac: use struct net_device::destructor to remove interfaces Upon deleting a P2P_CLIENT/GO interface the vif and consequently the wdev is freed before the net_device is actually being unregistered but cfg80211 still needs to access the wdev. Using destructor field to free the net_device and vif. Reviewed-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../net/wireless/brcm80211/brcmfmac/dhd_linux.c | 6 +++--- drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 23 +++++++++++++++++++++- .../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 1 - 3 files changed, 25 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c index f04e3555dca3..b98f2235978e 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c @@ -653,6 +653,7 @@ int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked) brcmf_dbg(INFO, "%s: Broadcom Dongle Host Driver\n", ndev->name); + ndev->destructor = free_netdev; return 0; fail: @@ -793,6 +794,7 @@ void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx) struct brcmf_if *ifp; ifp = drvr->iflist[bssidx]; + drvr->iflist[bssidx] = NULL; if (!ifp) { brcmf_err("Null interface, idx=%d\n", bssidx); return; @@ -813,15 +815,13 @@ void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx) cancel_work_sync(&ifp->setmacaddr_work); cancel_work_sync(&ifp->multicast_work); } - + /* unregister will take care of freeing it */ unregister_netdev(ifp->ndev); if (bssidx == 0) brcmf_cfg80211_detach(drvr->config); - free_netdev(ifp->ndev); } else { kfree(ifp); } - drvr->iflist[bssidx] = NULL; } int brcmf_attach(uint bus_hdrlen, struct device *dev) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c index 167b7afdf0d8..79555f006d53 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c @@ -2239,6 +2239,25 @@ static void brcmf_p2p_delete_p2pdev(struct brcmf_cfg80211_info *cfg, brcmf_free_vif(cfg, vif); } +/** + * brcmf_p2p_free_p2p_if() - free up net device related data. + * + * @ndev: net device that needs to be freed. + */ +static void brcmf_p2p_free_p2p_if(struct net_device *ndev) +{ + struct brcmf_cfg80211_info *cfg; + struct brcmf_cfg80211_vif *vif; + struct brcmf_if *ifp; + + ifp = netdev_priv(ndev); + cfg = ifp->drvr->config; + vif = ifp->vif; + + brcmf_free_vif(cfg, vif); + free_netdev(ifp->ndev); +} + /** * brcmf_p2p_add_vif() - create a new P2P virtual interface. * @@ -2316,6 +2335,9 @@ struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name, brcmf_err("Registering netdevice failed\n"); goto fail; } + /* override destructor */ + ifp->ndev->destructor = brcmf_p2p_free_p2p_if; + cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif; /* Disable firmware roaming for P2P interface */ brcmf_fil_iovar_int_set(ifp, "roam_off", 1); @@ -2391,7 +2413,6 @@ int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev) err = 0; } brcmf_cfg80211_arm_vif_event(cfg, NULL); - brcmf_free_vif(cfg, vif); p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL; return err; diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index f8c86b58a6d1..656ce8765863 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -4678,7 +4678,6 @@ static s32 brcmf_notify_vif_event(struct brcmf_if *ifp, return 0; case BRCMF_E_IF_DEL: - ifp->vif = NULL; mutex_unlock(&event->vif_event_lock); /* event may not be upon user request */ if (brcmf_cfg80211_vif_event_armed(cfg)) -- cgit v1.2.3 From 1c9d30cfac9901c4f7447deacdfb6b77eee1a096 Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Mon, 27 May 2013 21:09:58 +0200 Subject: brcmfmac: Add multi channel support for P2P. Multi channel support was disabled. This patch will enable it and configure the P2P GO on the correct frequency when multi channel is used. Reviewed-by: Arend Van Spriel Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- .../net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 26 +++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 656ce8765863..6a8717820b9f 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -3671,11 +3671,29 @@ brcmf_config_ap_mgmt_ie(struct brcmf_cfg80211_vif *vif, return err; } +static s32 +brcmf_cfg80211_set_channel(struct brcmf_cfg80211_info *cfg, + struct brcmf_if *ifp, + struct ieee80211_channel *channel) +{ + u16 chanspec; + s32 err; + + brcmf_dbg(TRACE, "band=%d, center_freq=%d\n", channel->band, + channel->center_freq); + + chanspec = channel_to_chanspec(&cfg->d11inf, channel); + err = brcmf_fil_iovar_int_set(ifp, "chanspec", chanspec); + + return err; +} + static s32 brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, struct cfg80211_ap_settings *settings) { s32 ie_offset; + struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct brcmf_if *ifp = netdev_priv(ndev); struct brcmf_tlv *ssid_ie; struct brcmf_ssid_le ssid_le; @@ -3746,6 +3764,12 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, brcmf_config_ap_mgmt_ie(ifp->vif, &settings->beacon); + err = brcmf_cfg80211_set_channel(cfg, ifp, settings->chandef.chan); + if (err < 0) { + brcmf_err("Set Channel failed, %d\n", err); + goto exit; + } + if (settings->beacon_interval) { err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_BCNPRD, settings->beacon_interval); @@ -4184,7 +4208,7 @@ static const struct ieee80211_iface_limit brcmf_iface_limits[] = { static const struct ieee80211_iface_combination brcmf_iface_combos[] = { { .max_interfaces = BRCMF_IFACE_MAX_CNT, - .num_different_channels = 1, /* no multi-channel for now */ + .num_different_channels = 2, .n_limits = ARRAY_SIZE(brcmf_iface_limits), .limits = brcmf_iface_limits } -- cgit v1.2.3 From 102fd0d69eed4c778555fe957f8660dfee1568ea Mon Sep 17 00:00:00 2001 From: Hante Meuleman Date: Mon, 27 May 2013 21:09:59 +0200 Subject: brcmfmac: Disable powersave mode for P2P link. For p2p client mode powersave mode should be kept disabled. It is working but inefficient. In general p2p links do no benefit from this mode, because these links are setup temporarily to transfer data. Reviewed-by: Arend Van Spriel Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c index 6a8717820b9f..301e572e8923 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c @@ -2248,6 +2248,11 @@ brcmf_cfg80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *ndev, } pm = enabled ? PM_FAST : PM_OFF; + /* Do not enable the power save after assoc if it is a p2p interface */ + if (ifp->vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) { + brcmf_dbg(INFO, "Do not enable power save for P2P clients\n"); + pm = PM_OFF; + } brcmf_dbg(INFO, "power save %s\n", (pm ? "enabled" : "disabled")); err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_PM, pm); -- cgit v1.2.3 From add295a4afbdf5852d004c754c552d692b0fcac8 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Tue, 28 May 2013 14:52:19 +0200 Subject: ath9k: use correct OTP register offsets for AR9550 Accessing the OTP memory on AR9950 causes a data bus like this: Data bus error, epc == 801f7774, ra == 801f7774 Oops[#1]: CPU: 0 PID: 1 Comm: swapper Not tainted 3.10.0-rc3 #592 task: 87c28000 ti: 87c22000 task.ti: 87c22000 $ 0 : 00000000 00000061 deadc0de 00000000 $ 4 : b8115f18 00015f18 00000007 00000004 $ 8 : 00000001 7c7c3c7c 7c7c7c7c 7c7c7c7c $12 : 7c7c3c7c 80320a68 00000000 7c7c7c3c $16 : 87cd8010 00015f18 00000007 00000000 $20 : 00000064 00000004 87c23c7c 8035210c $24 : 00000000 801f3674 $28 : 87c22000 87c23b48 00000001 801f7774 Hi : 00000000 Lo : 00000064 epc : 801f7774 ath9k_hw_wait+0x58/0xb0 Not tainted ra : 801f7774 ath9k_hw_wait+0x58/0xb0 Status: 1000cc03 KERNEL EXL IE Cause : 4080801c PrId : 00019750 (MIPS 74Kc) Modules linked in: Process swapper (pid: 1, threadinfo=87c22000, task=87c28000, ts=00000000) Stack : 0000000f 00000061 00002710 8006240c 00000001 87cd8010 87c23bb0 87cd8010 00000000 00000004 00000003 80210c7c 000000b3 67fa8000 0000032a 000006fe 000003e8 00000002 00000028 87c23bf0 000003ff 80210d24 803e5630 80210e28 00000000 00000007 87cd8010 00007044 00000004 00000061 000003ff 000001ff 87c26000 87cd8010 00000220 87cd8bb8 80210000 8020fcf4 87c22000 87c23c08 ... Call Trace: [<801f7774>] ath9k_hw_wait+0x58/0xb0 [<80210c7c>] ar9300_otp_read_word+0x80/0xd4 [<80210d24>] ar9300_read_otp+0x54/0xb0 [<8020fcf4>] ar9300_check_eeprom_header+0x1c/0x40 [<80210fe4>] ath9k_hw_ar9300_fill_eeprom+0x118/0x39c [<80206650>] ath9k_hw_eeprom_init+0x74/0xb4 [<801f96d0>] ath9k_hw_init+0x7ec/0x96c [<801e65ec>] ath9k_init_device+0x340/0x758 [<801f35d0>] ath_ahb_probe+0x21c/0x2c0 [<801c041c>] driver_probe_device+0xc0/0x1e4 [<801c05ac>] __driver_attach+0x6c/0xa4 [<801bea08>] bus_for_each_dev+0x64/0xa8 [<801bfa40>] bus_add_driver+0xcc/0x24c [<801c0954>] driver_register+0xbc/0x17c [<803f8fc0>] ath9k_init+0x5c/0x88 [<800608fc>] do_one_initcall+0xec/0x1a0 [<803e6a68>] kernel_init_freeable+0x13c/0x200 [<80309cdc>] kernel_init+0x1c/0xe4 [<80062450>] ret_from_kernel_thread+0x10/0x18 On the AR9550, the OTP registers are located at the same address as on the AR9340. Use the correct values to avoid the error. Cc: stable@vger.kernel.org # 3.6+ Signed-off-by: Gabor Juhos Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ar9003_eeprom.h | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h index 54ba42f4108a..874f6570bd1c 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h @@ -68,13 +68,16 @@ #define AR9300_BASE_ADDR 0x3ff #define AR9300_BASE_ADDR_512 0x1ff -#define AR9300_OTP_BASE (AR_SREV_9340(ah) ? 0x30000 : 0x14000) -#define AR9300_OTP_STATUS (AR_SREV_9340(ah) ? 0x30018 : 0x15f18) +#define AR9300_OTP_BASE \ + ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30000 : 0x14000) +#define AR9300_OTP_STATUS \ + ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30018 : 0x15f18) #define AR9300_OTP_STATUS_TYPE 0x7 #define AR9300_OTP_STATUS_VALID 0x4 #define AR9300_OTP_STATUS_ACCESS_BUSY 0x2 #define AR9300_OTP_STATUS_SM_BUSY 0x1 -#define AR9300_OTP_READ_DATA (AR_SREV_9340(ah) ? 0x3001c : 0x15f1c) +#define AR9300_OTP_READ_DATA \ + ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3001c : 0x15f1c) enum targetPowerHTRates { HT_TARGET_RATE_0_8_16, -- cgit v1.2.3 From f28c42c576b293b3a1daaed8ca2775ebc2fe5398 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 24 May 2013 14:29:20 +0800 Subject: usb: dwc3: pci: PHY should be deleted later than dwc3 core If the glue layer is removed first (core layer later), it deletes the phy device first, then the core device. But at core's removal, it still uses PHY's resources, it may cause kernel's oops. It is much like the problem Paul Zimmerman reported at: http://marc.info/?l=linux-usb&m=136547502011472&w=2. Besides, it is reasonable the PHY is deleted at last as the controller is the PHY's user. Signed-off-by: Peter Chen Cc: Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-pci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index 227d4a7acad7..eba9e2baf32b 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -196,9 +196,9 @@ static void dwc3_pci_remove(struct pci_dev *pci) { struct dwc3_pci *glue = pci_get_drvdata(pci); + platform_device_unregister(glue->dwc3); platform_device_unregister(glue->usb2_phy); platform_device_unregister(glue->usb3_phy); - platform_device_unregister(glue->dwc3); pci_set_drvdata(pci, NULL); pci_disable_device(pci); } -- cgit v1.2.3 From 022d0547aa8b00ff5035ba6207ebc2c08ea0a51f Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Fri, 24 May 2013 14:30:16 +0800 Subject: usb: dwc3: exynos: PHY should be deleted later than dwc3 core If the glue layer is removed first (core layer later), it deletes the phy device first, then the core device. But at core's removal, it still uses PHY's resources, it may cause kernel's oops. It is much like the problem Paul Zimmerman reported at: http://marc.info/?l=linux-usb&m=136547502011472&w=2. Besides, it is reasonable the PHY is deleted at last as the controller is the PHY's user. Signed-off-by: Peter Chen Cc: Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-exynos.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index 929e7dd6e58b..8ce9d7fd6cfc 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -164,9 +164,9 @@ static int dwc3_exynos_remove(struct platform_device *pdev) { struct dwc3_exynos *exynos = platform_get_drvdata(pdev); + device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child); platform_device_unregister(exynos->usb2_phy); platform_device_unregister(exynos->usb3_phy); - device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child); clk_disable_unprepare(exynos->clk); -- cgit v1.2.3 From 5bf8fae33d14cc5c3c53a926f9079f92c8b082b0 Mon Sep 17 00:00:00 2001 From: George Cherian Date: Mon, 27 May 2013 14:35:49 +0530 Subject: usb: dwc3: gadget: free trb pool only from epnum 2 we never allocate a TRB pool for physical endpoints 0 and 1 so trying to free it (a invalid TRB pool pointer) will lead us in a warning while removing dwc3.ko module. In order to fix the situation, all we have to do is skip dwc3_free_trb_pool() for physical endpoints 0 and 1 just as we while deleting endpoints from the endpoints list. Cc: stable@vger.kernel.org Signed-off-by: George Cherian Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 2b6e7e001207..b5e5b35df49c 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1706,11 +1706,19 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) dep = dwc->eps[epnum]; if (!dep) continue; - - dwc3_free_trb_pool(dep); - - if (epnum != 0 && epnum != 1) + /* + * Physical endpoints 0 and 1 are special; they form the + * bi-directional USB endpoint 0. + * + * For those two physical endpoints, we don't allocate a TRB + * pool nor do we add them the endpoints list. Due to that, we + * shouldn't do these two operations otherwise we would end up + * with all sorts of bugs when removing dwc3.ko. + */ + if (epnum != 0 && epnum != 1) { + dwc3_free_trb_pool(dep); list_del(&dep->endpoint.ep_list); + } kfree(dep); } -- cgit v1.2.3 From ed74df12dc3e07a37d99aab60211496e871488a0 Mon Sep 17 00:00:00 2001 From: Virupax Sadashivpetimath Date: Wed, 24 Apr 2013 08:38:48 +0200 Subject: usb: musb: make use_sg flag URB specific Since highmem PIO URB handling was introduced in: 8e8a551 usb: musb: host: Handle highmem in PIO mode when a URB is being handled it may happen that the static use_sg flag was set by a previous URB with buffer in highmem. This leads to error in handling the present URB. Fix this by making the use_sg flag URB specific. Cc: stable # 3.7+ Acked-by: Linus Walleij Signed-off-by: Virupax Sadashivpetimath Signed-off-by: Fabio Baltieri Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_host.c | 18 ++++++++---------- drivers/usb/musb/musb_host.h | 1 + 2 files changed, 9 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 8914dec49f01..9d3044bdebe5 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1232,7 +1232,6 @@ void musb_host_tx(struct musb *musb, u8 epnum) void __iomem *mbase = musb->mregs; struct dma_channel *dma; bool transfer_pending = false; - static bool use_sg; musb_ep_select(mbase, epnum); tx_csr = musb_readw(epio, MUSB_TXCSR); @@ -1463,9 +1462,9 @@ done: * NULL. */ if (!urb->transfer_buffer) - use_sg = true; + qh->use_sg = true; - if (use_sg) { + if (qh->use_sg) { /* sg_miter_start is already done in musb_ep_program */ if (!sg_miter_next(&qh->sg_miter)) { dev_err(musb->controller, "error: sg list empty\n"); @@ -1484,9 +1483,9 @@ done: qh->segsize = length; - if (use_sg) { + if (qh->use_sg) { if (offset + length >= urb->transfer_buffer_length) - use_sg = false; + qh->use_sg = false; } musb_ep_select(mbase, epnum); @@ -1552,7 +1551,6 @@ void musb_host_rx(struct musb *musb, u8 epnum) bool done = false; u32 status; struct dma_channel *dma; - static bool use_sg; unsigned int sg_flags = SG_MITER_ATOMIC | SG_MITER_TO_SG; musb_ep_select(mbase, epnum); @@ -1878,12 +1876,12 @@ void musb_host_rx(struct musb *musb, u8 epnum) * NULL. */ if (!urb->transfer_buffer) { - use_sg = true; + qh->use_sg = true; sg_miter_start(&qh->sg_miter, urb->sg, 1, sg_flags); } - if (use_sg) { + if (qh->use_sg) { if (!sg_miter_next(&qh->sg_miter)) { dev_err(musb->controller, "error: sg list empty\n"); sg_miter_stop(&qh->sg_miter); @@ -1913,8 +1911,8 @@ finish: urb->actual_length += xfer_len; qh->offset += xfer_len; if (done) { - if (use_sg) - use_sg = false; + if (qh->use_sg) + qh->use_sg = false; if (urb->status == -EINPROGRESS) urb->status = status; diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h index 5a9c8feec10c..738f7eb60df9 100644 --- a/drivers/usb/musb/musb_host.h +++ b/drivers/usb/musb/musb_host.h @@ -74,6 +74,7 @@ struct musb_qh { u16 frame; /* for periodic schedule */ unsigned iso_idx; /* in urb->iso_frame_desc[] */ struct sg_mapping_iter sg_miter; /* for highmem in PIO mode */ + bool use_sg; /* to track urb using sglist */ }; /* map from control or bulk queue head to the first qh on that ring */ -- cgit v1.2.3 From fcce9a35f8faaa1f52236c554ef1b15d99a7537e Mon Sep 17 00:00:00 2001 From: George Spelvin Date: Wed, 29 May 2013 10:20:35 +0900 Subject: ahci: add an observed PCI ID for Marvell 88se9172 SATA controller A third possible PCI ID, as personally observed, and found in the pci.ids list. Signed-off-by: George Spelvin Signed-off-by: Tejun Heo --- drivers/ata/ahci.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 21808766140a..2b50dfdf1cfc 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -423,6 +423,8 @@ static const struct pci_device_id ahci_pci_tbl[] = { .driver_data = board_ahci_yes_fbs }, /* 88se9125 */ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x917a), .driver_data = board_ahci_yes_fbs }, /* 88se9172 */ + { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9172), + .driver_data = board_ahci_yes_fbs }, /* 88se9172 */ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9192), .driver_data = board_ahci_yes_fbs }, /* 88se9172 on some Gigabyte */ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3), -- cgit v1.2.3 From fdc03438f53a00294ed9939eb3a1f6db6f3d8963 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 28 May 2013 14:03:10 -0400 Subject: USB: revert periodic scheduling bugfix This patch reverts commit 3e619d04159be54b3daa0b7036b0ce9e067f4b5d (USB: EHCI: fix bug in scheduling periodic split transfers). The commit was valid -- it fixed a real bug -- but the periodic scheduler in ehci-hcd is in such bad shape (especially the part that handles split transactions) that fixing one bug is very likely to cause another to surface. That's what happened in this case; the result was choppy and noisy playback on certain 24-bit audio devices. The only real fix will be to rewrite this entire section of code. My next project... This fixes https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110. Thanks to Tim Richardson for extra testing and feedback, and to Joseph Salisbury and Tyson Tan for tracking down the original source of the problem. Signed-off-by: Alan Stern CC: Joseph Salisbury CC: Tim Richardson Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-sched.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index acff5b8f6e89..f3c1028a54fc 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -213,7 +213,7 @@ static inline unsigned char tt_start_uframe(struct ehci_hcd *ehci, __hc32 mask) } static const unsigned char -max_tt_usecs[] = { 125, 125, 125, 125, 125, 125, 125, 25 }; +max_tt_usecs[] = { 125, 125, 125, 125, 125, 125, 30, 0 }; /* carryover low/fullspeed bandwidth that crosses uframe boundries */ static inline void carryover_tt_bandwidth(unsigned short tt_usecs[8]) -- cgit v1.2.3 From 5f8e2c07d75967ee49a5da1d21ddf5f50d48cda0 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:37 +0200 Subject: USB: serial: fix Treo/Kyocera interrrupt-in urb context The first and second interrupt-in urbs are swapped for some Treo/Kyocera devices, but the urb context was never updated with the new port. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/visor.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 7573ec8a084f..8d1a3e63b0ad 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -564,6 +564,7 @@ static int treo_attach(struct usb_serial *serial) dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\ dest->bulk_in_buffer = src->bulk_in_buffer; \ dest->interrupt_in_urb = src->interrupt_in_urb; \ + dest->interrupt_in_urb->context = dest; \ dest->interrupt_in_endpointAddress = \ src->interrupt_in_endpointAddress;\ dest->interrupt_in_buffer = src->interrupt_in_buffer; \ -- cgit v1.2.3 From 420021a395ce38b7ab2cceb52dee4038be7d8fa3 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:38 +0200 Subject: USB: visor: fix initialisation of Treo/Kyocera devices Fix regression introduced by commit 214916f2e ("USB: visor: reimplement using generic framework") which broke initialisation of Treo/Kyocera devices that re-mapped bulk-in endpoints. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/visor.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 8d1a3e63b0ad..9910aa2edf4b 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -560,9 +560,17 @@ static int treo_attach(struct usb_serial *serial) */ #define COPY_PORT(dest, src) \ do { \ + int i; \ + \ + for (i = 0; i < ARRAY_SIZE(src->read_urbs); ++i) { \ + dest->read_urbs[i] = src->read_urbs[i]; \ + dest->read_urbs[i]->context = dest; \ + dest->bulk_in_buffers[i] = src->bulk_in_buffers[i]; \ + } \ dest->read_urb = src->read_urb; \ dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\ dest->bulk_in_buffer = src->bulk_in_buffer; \ + dest->bulk_in_size = src->bulk_in_size; \ dest->interrupt_in_urb = src->interrupt_in_urb; \ dest->interrupt_in_urb->context = dest; \ dest->interrupt_in_endpointAddress = \ -- cgit v1.2.3 From 72ea18a558ed7a63a50bb121ba60d73b5b38ae30 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:39 +0200 Subject: USB: mos7720: fix DMA to stack The read_mos_reg function is called with stack-allocated buffers, which must not be used for control messages. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7720.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index cc0e54345df9..7752cffbf2bc 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -227,11 +227,22 @@ static int read_mos_reg(struct usb_serial *serial, unsigned int serial_portnum, __u8 requesttype = (__u8)0xc0; __u16 index = get_reg_index(reg); __u16 value = get_reg_value(reg, serial_portnum); - int status = usb_control_msg(usbdev, pipe, request, requesttype, value, - index, data, 1, MOS_WDR_TIMEOUT); - if (status < 0) + u8 *buf; + int status; + + buf = kmalloc(1, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + status = usb_control_msg(usbdev, pipe, request, requesttype, value, + index, buf, 1, MOS_WDR_TIMEOUT); + if (status == 1) + *data = *buf; + else if (status < 0) dev_err(&usbdev->dev, "mos7720: usb_control_msg() failed: %d", status); + kfree(buf); + return status; } -- cgit v1.2.3 From 15ee89c3347fbf58a4361011eda5ac2731e45126 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:40 +0200 Subject: USB: mos7840: fix DMA to stack Fix regression introduced by commit 0eafe4de1a ("USB: serial: mos7840: add support for MCS7810 devices") which used stack-allocated buffers for control messages. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7840.c | 35 +++++++++++++++++++++++++++-------- 1 file changed, 27 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index a0d5ea545982..7e998081e1cd 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -2142,13 +2142,21 @@ static int mos7840_ioctl(struct tty_struct *tty, static int mos7810_check(struct usb_serial *serial) { int i, pass_count = 0; + u8 *buf; __u16 data = 0, mcr_data = 0; __u16 test_pattern = 0x55AA; + int res; + + buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL); + if (!buf) + return 0; /* failed to identify 7810 */ /* Store MCR setting */ - usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), MCS_RDREQ, MCS_RD_RTYPE, 0x0300, MODEM_CONTROL_REGISTER, - &mcr_data, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT); + buf, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT); + if (res == VENDOR_READ_LENGTH) + mcr_data = *buf; for (i = 0; i < 16; i++) { /* Send the 1-bit test pattern out to MCS7810 test pin */ @@ -2158,9 +2166,12 @@ static int mos7810_check(struct usb_serial *serial) MODEM_CONTROL_REGISTER, NULL, 0, MOS_WDR_TIMEOUT); /* Read the test pattern back */ - usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &data, - VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT); + res = usb_control_msg(serial->dev, + usb_rcvctrlpipe(serial->dev, 0), MCS_RDREQ, + MCS_RD_RTYPE, 0, GPIO_REGISTER, buf, + VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT); + if (res == VENDOR_READ_LENGTH) + data = *buf; /* If this is a MCS7810 device, both test patterns must match */ if (((test_pattern >> i) ^ (~data >> 1)) & 0x0001) @@ -2174,6 +2185,8 @@ static int mos7810_check(struct usb_serial *serial) MCS_WR_RTYPE, 0x0300 | mcr_data, MODEM_CONTROL_REGISTER, NULL, 0, MOS_WDR_TIMEOUT); + kfree(buf); + if (pass_count == 16) return 1; @@ -2183,11 +2196,17 @@ static int mos7810_check(struct usb_serial *serial) static int mos7840_calc_num_ports(struct usb_serial *serial) { __u16 data = 0x00; + u8 *buf; int mos7840_num_ports; - usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &data, - VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT); + buf = kzalloc(VENDOR_READ_LENGTH, GFP_KERNEL); + if (buf) { + usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, buf, + VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT); + data = *buf; + kfree(buf); + } if (serial->dev->descriptor.idProduct == MOSCHIP_DEVICE_ID_7810 || serial->dev->descriptor.idProduct == MOSCHIP_DEVICE_ID_7820) { -- cgit v1.2.3 From 634371911730a462626071065b64cd6e1fe213e0 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:41 +0200 Subject: USB: ark3116: fix control-message timeout The control-message timeout is specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ark3116.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c index 3b16118cbf62..40e7fd94646f 100644 --- a/drivers/usb/serial/ark3116.c +++ b/drivers/usb/serial/ark3116.c @@ -43,7 +43,7 @@ #define DRIVER_NAME "ark3116" /* usb timeout of 1 second */ -#define ARK_TIMEOUT (1*HZ) +#define ARK_TIMEOUT 1000 static const struct usb_device_id id_table[] = { { USB_DEVICE(0x6547, 0x0232) }, -- cgit v1.2.3 From 6c13ff68a7ce01da7a51b44241a7aad8eaaedde7 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:42 +0200 Subject: USB: iuu_phoenix: fix bulk-message timeout The bulk-message timeout is specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/iuu_phoenix.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 9d74c278b7b5..790673e5faa7 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -287,7 +287,7 @@ static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count) usb_bulk_msg(serial->dev, usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress), buf, - count, &actual, HZ * 1); + count, &actual, 1000); if (status != IUU_OPERATION_OK) dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status); @@ -307,7 +307,7 @@ static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count) usb_bulk_msg(serial->dev, usb_rcvbulkpipe(serial->dev, port->bulk_in_endpointAddress), buf, - count, &actual, HZ * 1); + count, &actual, 1000); if (status != IUU_OPERATION_OK) dev_dbg(&port->dev, "%s - error = %2x\n", __func__, status); -- cgit v1.2.3 From 849513a7809175420d353625b6f651d961e99d49 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:43 +0200 Subject: USB: mos7720: fix message timeouts The control and bulk-message timeouts are specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7720.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 7752cffbf2bc..6eac26649009 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -40,7 +40,7 @@ #define DRIVER_DESC "Moschip USB Serial Driver" /* default urb timeout */ -#define MOS_WDR_TIMEOUT (HZ * 5) +#define MOS_WDR_TIMEOUT 5000 #define MOS_MAX_PORT 0x02 #define MOS_WRITE 0x0E @@ -1938,7 +1938,7 @@ static int mos7720_startup(struct usb_serial *serial) /* setting configuration feature to one */ usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), - (__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5*HZ); + (__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000); /* start the interrupt urb */ ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL); @@ -1981,7 +1981,7 @@ static void mos7720_release(struct usb_serial *serial) /* wait for synchronous usb calls to return */ if (mos_parport->msg_pending) wait_for_completion_timeout(&mos_parport->syncmsg_compl, - MOS_WDR_TIMEOUT); + msecs_to_jiffies(MOS_WDR_TIMEOUT)); parport_remove_port(mos_parport->pp); usb_set_serial_data(serial, NULL); -- cgit v1.2.3 From 5cbfa3acdcbf19e1d29cf3479ad8200d2e644e44 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 27 May 2013 14:44:44 +0200 Subject: USB: zte_ev: fix control-message timeouts The control-message timeout is specified in milliseconds and should not depend on HZ. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/zte_ev.c | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c index 39ee7373b4ee..b9a88f253636 100644 --- a/drivers/usb/serial/zte_ev.c +++ b/drivers/usb/serial/zte_ev.c @@ -53,7 +53,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, 0x0001, 0x0000, NULL, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); /* send 2st cmd and recieve data */ @@ -65,7 +65,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x21, 0xa1, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 3 cmd */ @@ -84,7 +84,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x20, 0x21, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 4 cmd */ @@ -95,7 +95,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, 0x0003, 0x0000, NULL, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); /* send 5 cmd */ @@ -107,7 +107,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x21, 0xa1, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 6 cmd */ @@ -126,7 +126,7 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x20, 0x21, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); kfree(buf); @@ -178,7 +178,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, 0x0002, 0x0000, NULL, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); /* send 2st ctl cmd(CTL 21 22 03 00 00 00 00 00 ) */ @@ -186,7 +186,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, 0x0003, 0x0000, NULL, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); /* send 3st cmd and recieve data */ @@ -198,7 +198,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x21, 0xa1, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 4 cmd */ @@ -217,7 +217,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x20, 0x21, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 5 cmd */ @@ -228,7 +228,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, 0x0003, 0x0000, NULL, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); /* send 6 cmd */ @@ -240,7 +240,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x21, 0xa1, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 7 cmd */ @@ -259,7 +259,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x20, 0x21, 0x0000, 0x0000, buf, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); debug_data(dev, __func__, len, buf, result); /* send 8 cmd */ @@ -270,7 +270,7 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) result = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x22, 0x21, 0x0003, 0x0000, NULL, len, - HZ * USB_CTRL_GET_TIMEOUT); + USB_CTRL_GET_TIMEOUT); dev_dbg(dev, "result = %d\n", result); kfree(buf); -- cgit v1.2.3 From 8e6d91ae0917bf934ed86411148f79d904728d51 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Tue, 28 May 2013 18:32:11 +0000 Subject: tuntap: forbid changing mq flag for persistent device We currently allow changing the mq flag (IFF_MULTI_QUEUE) for a persistent device. This will result a mismatch between the number the queues in netdev and tuntap. This is because we only allocate a 1q netdevice when IFF_MULTI_QUEUE was not specified, so when we set the IFF_MULTI_QUEUE and try to attach more queues later, netif_set_real_num_tx_queues() may fail which result a single queue netdevice with multiple sockets attached. Solve this by disallowing changing the mq flag for persistent device. Bug was introduced by commit edfb6a148ce62e5e19354a1dcd9a34e00815c2a1 (tuntap: reduce memory using of queues). Reported-by: Sriram Narasimhan Cc: Michael S. Tsirkin Signed-off-by: Jason Wang Signed-off-by: David S. Miller --- drivers/net/tun.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index f042b0373e5d..89776c592151 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1585,6 +1585,10 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) else return -EINVAL; + if (!!(ifr->ifr_flags & IFF_MULTI_QUEUE) != + !!(tun->flags & TUN_TAP_MQ)) + return -EINVAL; + if (tun_not_capable(tun)) return -EPERM; err = security_tun_dev_open(tun->security); -- cgit v1.2.3 From e2e2f0ea1c935edcf53feb4c4c8fdb4f86d57dd9 Mon Sep 17 00:00:00 2001 From: Federico Manzan Date: Fri, 24 May 2013 18:18:48 +0200 Subject: usbfs: Increase arbitrary limit for USB 3 isopkt length Increase the current arbitrary limit for isocronous packet size to a value large enough to account for USB 3.0 super bandwidth streams, bMaxBurst (0~15 allowed, 1~16 packets) bmAttributes (bit 1:0, mult 0~2, 1~3 packets) so the size max for one USB 3 isocronous transfer is 1024 byte * 16 * 3 = 49152 byte Acked-by: Alan Stern Signed-off-by: Federico Manzan Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devio.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index caefc800f298..c88c4fb9459d 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1287,9 +1287,13 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb, goto error; } for (totlen = u = 0; u < uurb->number_of_packets; u++) { - /* arbitrary limit, - * sufficient for USB 2.0 high-bandwidth iso */ - if (isopkt[u].length > 8192) { + /* + * arbitrary limit need for USB 3.0 + * bMaxBurst (0~15 allowed, 1~16 packets) + * bmAttributes (bit 1:0, mult 0~2, 1~3 packets) + * sizemax: 1024 * 16 * 3 = 49152 + */ + if (isopkt[u].length > 49152) { ret = -EINVAL; goto error; } -- cgit v1.2.3 From 2abb274629614bef4044a0b98ada42e977feadfd Mon Sep 17 00:00:00 2001 From: Aurelien Chartier Date: Tue, 28 May 2013 18:09:56 +0100 Subject: xenbus: delay xenbus frontend resume if xenstored is not running If the xenbus frontend is located in a domain running xenstored, the device resume is hanging because it is happening before the process resume. This patch adds extra logic to the resume code to check if we are the domain running xenstored and delay the resume if needed. Signed-off-by: Aurelien Chartier [Changes in v2: - Instead of bypassing the resume, process it in a workqueue] [Changes in v3: - Add a struct work in xenbus_device to avoid dynamic allocation - Several small code fixes] [Changes in v4: - Use a dedicated workqueue] [Changes in v5: - Move create_workqueue error handling to xenbus_frontend_dev_resume] Acked-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_probe_frontend.c | 37 +++++++++++++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index 3159a37d966d..a7e25073de19 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -29,6 +29,8 @@ #include "xenbus_probe.h" +static struct workqueue_struct *xenbus_frontend_wq; + /* device// => - */ static int frontend_bus_id(char bus_id[XEN_BUS_ID_SIZE], const char *nodename) { @@ -89,9 +91,40 @@ static void backend_changed(struct xenbus_watch *watch, xenbus_otherend_changed(watch, vec, len, 1); } +static void xenbus_frontend_delayed_resume(struct work_struct *w) +{ + struct xenbus_device *xdev = container_of(w, struct xenbus_device, work); + + xenbus_dev_resume(&xdev->dev); +} + +static int xenbus_frontend_dev_resume(struct device *dev) +{ + /* + * If xenstored is running in this domain, we cannot access the backend + * state at the moment, so we need to defer xenbus_dev_resume + */ + if (xen_store_domain_type == XS_LOCAL) { + struct xenbus_device *xdev = to_xenbus_device(dev); + + if (!xenbus_frontend_wq) { + pr_err("%s: no workqueue to process delayed resume\n", + xdev->nodename); + return -EFAULT; + } + + INIT_WORK(&xdev->work, xenbus_frontend_delayed_resume); + queue_work(xenbus_frontend_wq, &xdev->work); + + return 0; + } + + return xenbus_dev_resume(dev); +} + static const struct dev_pm_ops xenbus_pm_ops = { .suspend = xenbus_dev_suspend, - .resume = xenbus_dev_resume, + .resume = xenbus_frontend_dev_resume, .freeze = xenbus_dev_suspend, .thaw = xenbus_dev_cancel, .restore = xenbus_dev_resume, @@ -440,6 +473,8 @@ static int __init xenbus_probe_frontend_init(void) register_xenstore_notifier(&xenstore_notifier); + xenbus_frontend_wq = create_workqueue("xenbus_frontend"); + return 0; } subsys_initcall(xenbus_probe_frontend_init); -- cgit v1.2.3 From 33c1174bae3ea8f420abce53cf8aded778987583 Mon Sep 17 00:00:00 2001 From: Aurelien Chartier Date: Tue, 28 May 2013 18:09:55 +0100 Subject: xenbus: save xenstore local status for later use Save the xenstore local status computed in xenbus_init. It can then be used later to check if xenstored is running in this domain. Signed-off-by: Aurelien Chartier [Changes in v4: - Change variable name to xen_store_domain_type] Reviewed-by: David Vrabel Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_comms.h | 1 + drivers/xen/xenbus/xenbus_probe.c | 27 ++++++++++++--------------- drivers/xen/xenbus/xenbus_probe.h | 7 +++++++ 3 files changed, 20 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_comms.h b/drivers/xen/xenbus/xenbus_comms.h index c8abd3b8a6c4..e74f9c1fbd80 100644 --- a/drivers/xen/xenbus/xenbus_comms.h +++ b/drivers/xen/xenbus/xenbus_comms.h @@ -45,6 +45,7 @@ int xb_wait_for_data_to_read(void); int xs_input_avail(void); extern struct xenstore_domain_interface *xen_store_interface; extern int xen_store_evtchn; +extern enum xenstore_init xen_store_domain_type; extern const struct file_operations xen_xenbus_fops; diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 3325884c693f..56cfaaa9d006 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -69,6 +69,9 @@ EXPORT_SYMBOL_GPL(xen_store_evtchn); struct xenstore_domain_interface *xen_store_interface; EXPORT_SYMBOL_GPL(xen_store_interface); +enum xenstore_init xen_store_domain_type; +EXPORT_SYMBOL_GPL(xen_store_domain_type); + static unsigned long xen_store_mfn; static BLOCKING_NOTIFIER_HEAD(xenstore_chain); @@ -719,17 +722,11 @@ static int __init xenstored_local_init(void) return err; } -enum xenstore_init { - UNKNOWN, - PV, - HVM, - LOCAL, -}; static int __init xenbus_init(void) { int err = 0; - enum xenstore_init usage = UNKNOWN; uint64_t v = 0; + xen_store_domain_type = XS_UNKNOWN; if (!xen_domain()) return -ENODEV; @@ -737,29 +734,29 @@ static int __init xenbus_init(void) xenbus_ring_ops_init(); if (xen_pv_domain()) - usage = PV; + xen_store_domain_type = XS_PV; if (xen_hvm_domain()) - usage = HVM; + xen_store_domain_type = XS_HVM; if (xen_hvm_domain() && xen_initial_domain()) - usage = LOCAL; + xen_store_domain_type = XS_LOCAL; if (xen_pv_domain() && !xen_start_info->store_evtchn) - usage = LOCAL; + xen_store_domain_type = XS_LOCAL; if (xen_pv_domain() && xen_start_info->store_evtchn) xenstored_ready = 1; - switch (usage) { - case LOCAL: + switch (xen_store_domain_type) { + case XS_LOCAL: err = xenstored_local_init(); if (err) goto out_error; xen_store_interface = mfn_to_virt(xen_store_mfn); break; - case PV: + case XS_PV: xen_store_evtchn = xen_start_info->store_evtchn; xen_store_mfn = xen_start_info->store_mfn; xen_store_interface = mfn_to_virt(xen_store_mfn); break; - case HVM: + case XS_HVM: err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v); if (err) goto out_error; diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h index bb4f92ed8730..146f857a36f8 100644 --- a/drivers/xen/xenbus/xenbus_probe.h +++ b/drivers/xen/xenbus/xenbus_probe.h @@ -47,6 +47,13 @@ struct xen_bus_type { struct bus_type bus; }; +enum xenstore_init { + XS_UNKNOWN, + XS_PV, + XS_HVM, + XS_LOCAL, +}; + extern struct device_attribute xenbus_dev_attrs[]; extern int xenbus_match(struct device *_dev, struct device_driver *_drv); -- cgit v1.2.3 From d69c0e3975e4955dd596c162d1628ba1dbb1eb45 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 29 May 2013 13:31:15 +0100 Subject: xen-pciback: more uses of cached MSI-X capability offset Signed-off-by: Jan Beulich Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xen-pciback/pci_stub.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c index a2278ba7fb27..4e8ba38aa0c9 100644 --- a/drivers/xen/xen-pciback/pci_stub.c +++ b/drivers/xen/xen-pciback/pci_stub.c @@ -106,7 +106,7 @@ static void pcistub_device_release(struct kref *kref) else pci_restore_state(dev); - if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) { + if (dev->msix_cap) { struct physdev_pci_device ppdev = { .seg = pci_domain_nr(dev->bus), .bus = dev->bus->number, @@ -371,7 +371,7 @@ static int pcistub_init_device(struct pci_dev *dev) if (err) goto config_release; - if (pci_find_capability(dev, PCI_CAP_ID_MSIX)) { + if (dev->msix_cap) { struct physdev_pci_device ppdev = { .seg = pci_domain_nr(dev->bus), .bus = dev->bus->number, -- cgit v1.2.3 From 27b0705c68dab67a6c8ffa19869aeca3eaf75d78 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Tue, 21 May 2013 17:14:18 +0200 Subject: drm/radeon: UVD block on SUMO2 is the same as on SUMO MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The chip id for SUMO2 isn't used. fixes: https://bugs.freedesktop.org/show_bug.cgi?id=63935 Tested-By: Dave Witbrodt Signed-off-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/rv770.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 83f612a9500b..3fc2985445ee 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -862,10 +862,8 @@ int rv770_uvd_resume(struct radeon_device *rdev) chip_id = 0x0100000b; break; case CHIP_SUMO: - chip_id = 0x0100000c; - break; case CHIP_SUMO2: - chip_id = 0x0100000d; + chip_id = 0x0100000c; break; case CHIP_PALM: chip_id = 0x0100000e; -- cgit v1.2.3 From 468ef1a58c9268ac9709350bf95eaf1c22a69f29 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 21 May 2013 13:35:19 -0400 Subject: drm/radeon: fix typo in cu_per_sh on verde Should be 5 rather than 2. Noticed by sroland and glisse on IRC. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/si.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index 5ffade69af25..d1ba9d88f311 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2616,7 +2616,7 @@ static void si_gpu_init(struct radeon_device *rdev) default: rdev->config.si.max_shader_engines = 1; rdev->config.si.max_tile_pipes = 4; - rdev->config.si.max_cu_per_sh = 2; + rdev->config.si.max_cu_per_sh = 5; rdev->config.si.max_sh_per_se = 2; rdev->config.si.max_backends_per_se = 4; rdev->config.si.max_texture_channel_caches = 4; -- cgit v1.2.3 From 09fb8bd1a63b0f9f15e655c4fe8d047e5d2bf67a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 22 May 2013 11:22:51 -0400 Subject: drm/radeon: fix card_posted check for newer asics MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Newer asics have variable numbers of crtcs. Use that rather than the asic family to determine which crtcs to check. This avoids checking non-existent crtcs or missing crtcs on certain asics. Reviewed-by: Michel Dänzer Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_device.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index c2c59fb1ea01..89cc8166db94 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -472,18 +472,17 @@ bool radeon_card_posted(struct radeon_device *rdev) return false; /* first check CRTCs */ - if (ASIC_IS_DCE41(rdev)) { + if (ASIC_IS_DCE4(rdev)) { reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) | RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET); - if (reg & EVERGREEN_CRTC_MASTER_EN) - return true; - } else if (ASIC_IS_DCE4(rdev)) { - reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) | - RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) | - RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) | - RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) | - RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) | - RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET); + if (rdev->num_crtc >= 4) { + reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) | + RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET); + } + if (rdev->num_crtc >= 6) { + reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) | + RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET); + } if (reg & EVERGREEN_CRTC_MASTER_EN) return true; } else if (ASIC_IS_AVIVO(rdev)) { -- cgit v1.2.3 From 2cf3a4fcc64e5b54a8a3cd793c6c0024b5d8da6c Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 22 May 2013 11:30:34 -0400 Subject: drm/radeon: don't check crtcs in card_posted() on cards without DCE Skip checking crtcs in hardware without them. Avoids checking non-existent hardware. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_device.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 89cc8166db94..af82c9b6a28b 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -471,6 +471,9 @@ bool radeon_card_posted(struct radeon_device *rdev) rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) return false; + if (ASIC_IS_NODCE(rdev)) + goto check_memsize; + /* first check CRTCs */ if (ASIC_IS_DCE4(rdev)) { reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) | @@ -499,6 +502,7 @@ bool radeon_card_posted(struct radeon_device *rdev) } } +check_memsize: /* then check MEM_SIZE, in case the crtcs are off */ if (rdev->family >= CHIP_R600) reg = RREG32(R600_CONFIG_MEMSIZE); -- cgit v1.2.3 From 50a583f64bfe53aae4996965c1d1b25d90ce4f64 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 22 May 2013 13:29:33 -0400 Subject: drm/radeon: narrow scope of Apple re-POST hack This narrows the scope of the apple re-POST hack added in: drm/radeon: re-POST the asic on Apple hardware when booted via EFI That patch prevents UVD from working on macs when booted in EFI mode. The original patch fixed macbook2,1 systems which were r5xx and hence have no UVD. Limit the hack to those systems to prevent UVD breakage on newer systems. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=63935 Cc: Matthew Garrett Signed-off-by: Alex Deucher Acked-by: Matthew Garrett --- drivers/gpu/drm/radeon/radeon_device.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index af82c9b6a28b..189973836cff 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -467,8 +467,10 @@ bool radeon_card_posted(struct radeon_device *rdev) { uint32_t reg; + /* required for EFI mode on macbook2,1 which uses an r5xx asic */ if (efi_enabled(EFI_BOOT) && - rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) + (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) && + (rdev->family < CHIP_R600)) return false; if (ASIC_IS_NODCE(rdev)) -- cgit v1.2.3 From 7e0e41963740525af702bb23edede8ae9afc4ac0 Mon Sep 17 00:00:00 2001 From: Kleber Sacilotto de Souza Date: Fri, 3 May 2013 19:43:13 -0300 Subject: radeon: use max_bus_speed to activate gen2 speeds radeon currently uses a drm function to get the speed capabilities for the bus, drm_pcie_get_speed_cap_mask. However, this is a non-standard method of performing this detection and this patch changes it to use the max_bus_speed attribute. From: Lucas Kannebley Tavares Signed-off-by: Kleber Sacilotto de Souza Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/evergreen.c | 10 +++------- drivers/gpu/drm/radeon/r600.c | 9 ++------- drivers/gpu/drm/radeon/rv770.c | 9 ++------- 3 files changed, 7 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 8f9e2d31b255..8546e3b333b4 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -4999,8 +4999,7 @@ void evergreen_fini(struct radeon_device *rdev) void evergreen_pcie_gen2_enable(struct radeon_device *rdev) { - u32 link_width_cntl, speed_cntl, mask; - int ret; + u32 link_width_cntl, speed_cntl; if (radeon_pcie_gen2 == 0) return; @@ -5015,11 +5014,8 @@ void evergreen_pcie_gen2_enable(struct radeon_device *rdev) if (ASIC_IS_X2(rdev)) return; - ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask); - if (ret != 0) - return; - - if (!(mask & DRM_PCIE_SPEED_50)) + if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) && + (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT)) return; speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 1a08008c978b..b45e64848677 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -4631,8 +4631,6 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) { u32 link_width_cntl, lanes, speed_cntl, training_cntl, tmp; u16 link_cntl2; - u32 mask; - int ret; if (radeon_pcie_gen2 == 0) return; @@ -4651,11 +4649,8 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev) if (rdev->family <= CHIP_R600) return; - ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask); - if (ret != 0) - return; - - if (!(mask & DRM_PCIE_SPEED_50)) + if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) && + (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT)) return; speed_cntl = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL); diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 3fc2985445ee..08aef24afe40 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -2111,8 +2111,6 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev) { u32 link_width_cntl, lanes, speed_cntl, tmp; u16 link_cntl2; - u32 mask; - int ret; if (radeon_pcie_gen2 == 0) return; @@ -2127,11 +2125,8 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev) if (ASIC_IS_X2(rdev)) return; - ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask); - if (ret != 0) - return; - - if (!(mask & DRM_PCIE_SPEED_50)) + if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) && + (rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT)) return; DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n"); -- cgit v1.2.3 From dd4704480372fdbf3e8f7826274a883c4c7c335a Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 8 May 2013 14:29:03 +0100 Subject: clk: ux500: Provide device enumeration number suffix for SMSC911x First Ethernet device has a ".0" appended onto the device name. It appears that we need this in order to obtain the correct clock. Without this fix Ethernet does not function on Ux500 devices, which is a regression. Cc: Ulf Hansson Signed-off-by: Lee Jones Signed-off-by: Mike Turquette [mturquette@linaro.org: improved changelog] --- drivers/clk/ux500/u8500_clk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c index 0b4f35a5ffc2..80069c370a47 100644 --- a/drivers/clk/ux500/u8500_clk.c +++ b/drivers/clk/ux500/u8500_clk.c @@ -325,7 +325,7 @@ void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base, BIT(0), 0); clk_register_clkdev(clk, "fsmc", NULL); - clk_register_clkdev(clk, NULL, "smsc911x"); + clk_register_clkdev(clk, NULL, "smsc911x.0"); clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base, BIT(1), 0); -- cgit v1.2.3 From f586938ba2cf83ed4cbebe96436220d182a7808e Mon Sep 17 00:00:00 2001 From: Fabio Baltieri Date: Tue, 30 Apr 2013 14:45:06 +0200 Subject: clk: ux500: clk-sysctrl: handle clocks with no parents Fix clk_reg_sysctrl() to set main clock registers of new struct clk_sysctrl even if the registered clock has no parents. This fixes an issue where "ulpclk" was registered with all clk->reg_* fields uninitialized, causing a -EINVAL error from clk_prepare(). Signed-off-by: Fabio Baltieri Acked-by: Ulf Hansson Signed-off-by: Mike Turquette --- drivers/clk/ux500/clk-sysctrl.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/ux500/clk-sysctrl.c b/drivers/clk/ux500/clk-sysctrl.c index bc7e9bde792b..e364c9d4aa60 100644 --- a/drivers/clk/ux500/clk-sysctrl.c +++ b/drivers/clk/ux500/clk-sysctrl.c @@ -145,7 +145,13 @@ static struct clk *clk_reg_sysctrl(struct device *dev, return ERR_PTR(-ENOMEM); } - for (i = 0; i < num_parents; i++) { + /* set main clock registers */ + clk->reg_sel[0] = reg_sel[0]; + clk->reg_bits[0] = reg_bits[0]; + clk->reg_mask[0] = reg_mask[0]; + + /* handle clocks with more than one parent */ + for (i = 1; i < num_parents; i++) { clk->reg_sel[i] = reg_sel[i]; clk->reg_bits[i] = reg_bits[i]; clk->reg_mask[i] = reg_mask[i]; -- cgit v1.2.3 From 056f3d58db6f7d19be7dbc2aab8d049f28e20d6e Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 10 May 2013 18:38:09 +0200 Subject: clk: samsung: Add CLK_IGNORE_UNUSED flag for the sysreg clocks Currently no driver *) handles the sysreg clock, with an assumption that this clock is always left in its default state (enabled). Before commit 6e6aac7590f902d14d90bace3fd499 ARM: EXYNOS: Migrate clock support to common clock framework the sysreg clock was not even defined and hence wasn't handled explicitly in the kernel. To restore the previous behaviour disable masking the sysreg clock off in the clock core by default. *) Except the Exynos4x12 FIMC-IS driver, which will be modified to not touch the sysreg clock. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mike Turquette --- drivers/clk/samsung/clk-exynos4.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index d0940e69d034..3c1f88868f29 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -791,7 +791,8 @@ struct samsung_gate_clock exynos4210_gate_clks[] __initdata = { GATE(smmu_pcie, "smmu_pcie", "aclk133", GATE_IP_FSYS, 18, 0, 0), GATE(modemif, "modemif", "aclk100", GATE_IP_PERIL, 28, 0, 0), GATE(chipid, "chipid", "aclk100", E4210_GATE_IP_PERIR, 0, 0, 0), - GATE(sysreg, "sysreg", "aclk100", E4210_GATE_IP_PERIR, 0, 0, 0), + GATE(sysreg, "sysreg", "aclk100", E4210_GATE_IP_PERIR, 0, + CLK_IGNORE_UNUSED, 0), GATE(hdmi_cec, "hdmi_cec", "aclk100", E4210_GATE_IP_PERIR, 11, 0, 0), GATE(smmu_rotator, "smmu_rotator", "aclk200", E4210_GATE_IP_IMAGE, 4, 0, 0), @@ -819,7 +820,8 @@ struct samsung_gate_clock exynos4x12_gate_clks[] __initdata = { GATE(smmu_mdma, "smmu_mdma", "aclk200", E4X12_GATE_IP_IMAGE, 5, 0, 0), GATE(mipi_hsi, "mipi_hsi", "aclk133", GATE_IP_FSYS, 10, 0, 0), GATE(chipid, "chipid", "aclk100", E4X12_GATE_IP_PERIR, 0, 0, 0), - GATE(sysreg, "sysreg", "aclk100", E4X12_GATE_IP_PERIR, 1, 0, 0), + GATE(sysreg, "sysreg", "aclk100", E4X12_GATE_IP_PERIR, 1, + CLK_IGNORE_UNUSED, 0), GATE(hdmi_cec, "hdmi_cec", "aclk100", E4X12_GATE_IP_PERIR, 11, 0, 0), GATE(sclk_mdnie0, "sclk_mdnie0", "div_mdnie0", SRC_MASK_LCD0, 4, CLK_SET_RATE_PARENT, 0), -- cgit v1.2.3 From 8d0b8801c9e4c2c6b20cdac74dbab16facce7653 Mon Sep 17 00:00:00 2001 From: Wei Liu Date: Wed, 29 May 2013 17:02:58 +0100 Subject: xenbus_client.c: correct exit path for xenbus_map_ring_valloc_hvm Apparently we should not free page that has not been allocated. This is b/c alloc_xenballooned_pages will take care of freeing the page on its own. Signed-off-by: Wei Liu Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_client.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c index 61786be9138b..ec097d6f964d 100644 --- a/drivers/xen/xenbus/xenbus_client.c +++ b/drivers/xen/xenbus/xenbus_client.c @@ -534,7 +534,7 @@ static int xenbus_map_ring_valloc_hvm(struct xenbus_device *dev, err = xenbus_map_ring(dev, gnt_ref, &node->handle, addr); if (err) - goto out_err; + goto out_err_free_ballooned_pages; spin_lock(&xenbus_valloc_lock); list_add(&node->next, &xenbus_valloc_pages); @@ -543,8 +543,9 @@ static int xenbus_map_ring_valloc_hvm(struct xenbus_device *dev, *vaddr = addr; return 0; - out_err: + out_err_free_ballooned_pages: free_xenballooned_pages(1, &node->page); + out_err: kfree(node); return err; } -- cgit v1.2.3 From 67e1e2268e598861dc771e3c976daf07db380638 Mon Sep 17 00:00:00 2001 From: Marek Belisko Date: Fri, 3 May 2013 07:53:22 +0200 Subject: clk: si5351: Fix clkout rate computation. Rate was incorrectly computed because we read from wrong divider register. Signed-off-by: Marek Belisko Acked-by: Sebastian Hesselbarth Signed-off-by: Mike Turquette Cc: stable@kernel.org --- drivers/clk/clk-si5351.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index 892728412e9d..cf39e530e6e2 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -932,7 +932,7 @@ static unsigned long si5351_clkout_recalc_rate(struct clk_hw *hw, unsigned char reg; unsigned char rdiv; - if (hwdata->num > 5) + if (hwdata->num <= 5) reg = si5351_msynth_params_address(hwdata->num) + 2; else reg = SI5351_CLK6_7_OUTPUT_DIVIDER; -- cgit v1.2.3 From 6532cb71fb31436b8d31818a056f45b8f95dfb31 Mon Sep 17 00:00:00 2001 From: Marek Belisko Date: Fri, 3 May 2013 07:53:23 +0200 Subject: clk: si5351: Set initial clkout rate when defined in platform data. clock-frequency property from platform data was read but never used. Apply defined rate when clock is registered. Signed-off-by: Marek Belisko Acked-by: Sebastian Hesselbarth Signed-off-by: Mike Turquette [mturquette@linaro.org: add missing changelog] Cc: stable@kernel.org Signed-off-by: Mike Turquette --- drivers/clk/clk-si5351.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index cf39e530e6e2..24f553673b72 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -1477,6 +1477,16 @@ static int si5351_i2c_probe(struct i2c_client *client, return -EINVAL; } drvdata->onecell.clks[n] = clk; + + /* set initial clkout rate */ + if (pdata->clkout[n].rate != 0) { + int ret; + ret = clk_set_rate(clk, pdata->clkout[n].rate); + if (ret != 0) { + dev_err(&client->dev, "Cannot set rate : %d\n", + ret); + } + } } ret = of_clk_add_provider(client->dev.of_node, of_clk_src_onecell_get, -- cgit v1.2.3 From 419e321df8d7d605f21f980903befc65ee66e848 Mon Sep 17 00:00:00 2001 From: Tony Prisk Date: Sat, 18 May 2013 09:18:49 +1200 Subject: clk: vt8500: Fix unbalanced spinlock in vt8500_dclk_set_rate() With the addition of a DVO clock, a bug is now evident in the vt8500 clock code: [ 0.290000] WARNING: at init/main.c:698 do_one_initcall+0x158/0x18c() [ 0.300000] initcall wm8505fb_driver_init+0x0/0xc returned with disabled int This is caused by an unbalanced spinlock in vt8500_dclk_set_rate(). Replace the second call to spin_lock_irqsave() with spin_unlock_irqrestore(). Signed-off-by: Tony Prisk Signed-off-by: Mike Turquette --- drivers/clk/clk-vt8500.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c index debf688afa8e..553ac35bcc91 100644 --- a/drivers/clk/clk-vt8500.c +++ b/drivers/clk/clk-vt8500.c @@ -183,7 +183,7 @@ static int vt8500_dclk_set_rate(struct clk_hw *hw, unsigned long rate, writel(divisor, cdev->div_reg); vt8500_pmc_wait_busy(); - spin_lock_irqsave(cdev->lock, flags); + spin_unlock_irqrestore(cdev->lock, flags); return 0; } -- cgit v1.2.3 From 9b31a328e344e62e7cc98ae574edcb7b674719bb Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 15 May 2013 00:52:44 -0700 Subject: target: Re-instate sess_wait_list for target_wait_for_sess_cmds Switch back to pre commit 1c7b13fe652 list splicing logic for active I/O shutdown with tcm_qla2xxx + ib_srpt fabrics. The original commit was done under the incorrect assumption that it's safe to walk se_sess->sess_cmd_list unprotected in target_wait_for_sess_cmds() after sess->sess_tearing_down = 1 has been set by target_sess_cmd_list_set_waiting() during session shutdown. So instead of adding sess->sess_cmd_lock protection around sess->sess_cmd_list during target_wait_for_sess_cmds(), switch back to sess->sess_wait_list to allow wait_for_completion() + TFO->release_cmd() to occur without having to walk ->sess_cmd_list after the list_splice. Also add a check to exit if target_sess_cmd_list_set_waiting() has already been called, and add a WARN_ON to check for any fabric bug where new se_cmds are added to sess->sess_cmd_list after sess->sess_tearing_down = 1 has already been set. Cc: Joern Engel Cc: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 311c11349aab..bbca144821c5 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -221,6 +221,7 @@ struct se_session *transport_init_session(void) INIT_LIST_HEAD(&se_sess->sess_list); INIT_LIST_HEAD(&se_sess->sess_acl_list); INIT_LIST_HEAD(&se_sess->sess_cmd_list); + INIT_LIST_HEAD(&se_sess->sess_wait_list); spin_lock_init(&se_sess->sess_cmd_lock); kref_init(&se_sess->sess_kref); @@ -2250,11 +2251,14 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess) unsigned long flags; spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); - - WARN_ON(se_sess->sess_tearing_down); + if (se_sess->sess_tearing_down) { + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + return; + } se_sess->sess_tearing_down = 1; + list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list); - list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list) + list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list) se_cmd->cmd_wait_set = 1; spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); @@ -2267,9 +2271,10 @@ EXPORT_SYMBOL(target_sess_cmd_list_set_waiting); void target_wait_for_sess_cmds(struct se_session *se_sess) { struct se_cmd *se_cmd, *tmp_cmd; + unsigned long flags; list_for_each_entry_safe(se_cmd, tmp_cmd, - &se_sess->sess_cmd_list, se_cmd_list) { + &se_sess->sess_wait_list, se_cmd_list) { list_del(&se_cmd->se_cmd_list); pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:" @@ -2283,6 +2288,11 @@ void target_wait_for_sess_cmds(struct se_session *se_sess) se_cmd->se_tfo->release_cmd(se_cmd); } + + spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); + WARN_ON(!list_empty(&se_sess->sess_cmd_list)); + spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + } EXPORT_SYMBOL(target_wait_for_sess_cmds); -- cgit v1.2.3 From 1d19f7800d643b270b28d0a969c5eca455d54397 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 15 May 2013 01:30:01 -0700 Subject: ib_srpt: Call target_sess_cmd_list_set_waiting during shutdown_session Given that srpt_release_channel_work() calls target_wait_for_sess_cmds() to allow outstanding se_cmd_t->cmd_kref a change to complete, the call to perform target_sess_cmd_list_set_waiting() needs to happen in srpt_shutdown_session() Also, this patch adds an explicit call to srpt_shutdown_session() within srpt_drain_channel() so that target_sess_cmd_list_set_waiting() will be called in the cases where TFO->shutdown_session() is not triggered directly by TCM. Cc: Joern Engel Cc: Roland Dreier Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/infiniband/ulp/srpt/ib_srpt.c | 32 ++++++++++++++++++++++++-------- drivers/infiniband/ulp/srpt/ib_srpt.h | 1 + 2 files changed, 25 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c index 564024e0123a..3f3f0416fbdd 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -2226,6 +2226,27 @@ static void srpt_close_ch(struct srpt_rdma_ch *ch) spin_unlock_irq(&sdev->spinlock); } +/** + * srpt_shutdown_session() - Whether or not a session may be shut down. + */ +static int srpt_shutdown_session(struct se_session *se_sess) +{ + struct srpt_rdma_ch *ch = se_sess->fabric_sess_ptr; + unsigned long flags; + + spin_lock_irqsave(&ch->spinlock, flags); + if (ch->in_shutdown) { + spin_unlock_irqrestore(&ch->spinlock, flags); + return true; + } + + ch->in_shutdown = true; + target_sess_cmd_list_set_waiting(se_sess); + spin_unlock_irqrestore(&ch->spinlock, flags); + + return true; +} + /** * srpt_drain_channel() - Drain a channel by resetting the IB queue pair. * @cm_id: Pointer to the CM ID of the channel to be drained. @@ -2264,6 +2285,9 @@ static void srpt_drain_channel(struct ib_cm_id *cm_id) spin_unlock_irq(&sdev->spinlock); if (do_reset) { + if (ch->sess) + srpt_shutdown_session(ch->sess); + ret = srpt_ch_qp_err(ch); if (ret < 0) printk(KERN_ERR "Setting queue pair in error state" @@ -3466,14 +3490,6 @@ static void srpt_release_cmd(struct se_cmd *se_cmd) spin_unlock_irqrestore(&ch->spinlock, flags); } -/** - * srpt_shutdown_session() - Whether or not a session may be shut down. - */ -static int srpt_shutdown_session(struct se_session *se_sess) -{ - return true; -} - /** * srpt_close_session() - Forcibly close a session. * diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h index 4caf55cda7b1..3dae156905de 100644 --- a/drivers/infiniband/ulp/srpt/ib_srpt.h +++ b/drivers/infiniband/ulp/srpt/ib_srpt.h @@ -325,6 +325,7 @@ struct srpt_rdma_ch { u8 sess_name[36]; struct work_struct release_work; struct completion *release_done; + bool in_shutdown; }; /** -- cgit v1.2.3 From 3f4d6364084ca0525591836eba4a59f04bb85c68 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 8 May 2013 16:09:06 +0530 Subject: regulator: palmas: Fix incorrect condition Since 'id' cannot take two values at the same time, the condition should probably be an OR (||) instead of AND (&&). Introduced by commit 28d1e8cd67 ("regulator: palma: add ramp delay support through regulator constraints"). Signed-off-by: Sachin Kamat Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 92ceed0fc65e..ced74167a600 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -840,7 +840,7 @@ static int palmas_regulators_probe(struct platform_device *pdev) break; } - if ((id == PALMAS_REG_SMPS6) && (id == PALMAS_REG_SMPS8)) + if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) ramp_delay_support = true; if (ramp_delay_support) { -- cgit v1.2.3 From f232168df0c7e7414b70ac5d8fed83086d441c0b Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Thu, 30 May 2013 15:55:09 +0530 Subject: regulator: palmas: Fix "enable_reg" to point to the correct reg for SMPS10 regulator_enable_regmap() uses enable_reg to enable the regulator. But enable_reg for smps10 points to SMPS10_STATUS which is a read-only register. Fixed the same by having enable_reg set to SMPS10_CTRL. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- drivers/regulator/palmas-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index ced74167a600..3ae44ac12a94 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -878,7 +878,7 @@ static int palmas_regulators_probe(struct platform_device *pdev) pmic->desc[id].vsel_mask = SMPS10_VSEL; pmic->desc[id].enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, - PALMAS_SMPS10_STATUS); + PALMAS_SMPS10_CTRL); pmic->desc[id].enable_mask = SMPS10_BOOST_EN; pmic->desc[id].min_uV = 3750000; pmic->desc[id].uV_step = 1250000; -- cgit v1.2.3 From 308853139fcd440e4ca28d844678c7e69fb40826 Mon Sep 17 00:00:00 2001 From: Paul Zimmerman Date: Fri, 24 May 2013 16:27:56 -0700 Subject: staging: dwc2: fix value of dma_mask Passing the value DMA_BIT_MASK(31) to dma_set_mask() causes the dwc2-pci driver to sometimes fail (cannot enumerate the connected device). Change it to DMA_BIT_MASK(32) instead, which is a more sensible value anyway. Signed-off-by: Paul Zimmerman Signed-off-by: Greg Kroah-Hartman --- drivers/staging/dwc2/hcd.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c index 827ab781ae9b..8551ccedf037 100644 --- a/drivers/staging/dwc2/hcd.c +++ b/drivers/staging/dwc2/hcd.c @@ -2804,9 +2804,8 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq, /* Set device flags indicating whether the HCD supports DMA */ if (hsotg->core_params->dma_enable > 0) { - if (dma_set_mask(hsotg->dev, DMA_BIT_MASK(31)) < 0) - dev_warn(hsotg->dev, - "can't enable workaround for >2GB RAM\n"); + if (dma_set_mask(hsotg->dev, DMA_BIT_MASK(32)) < 0) + dev_warn(hsotg->dev, "can't set DMA mask\n"); if (dma_set_coherent_mask(hsotg->dev, DMA_BIT_MASK(31)) < 0) dev_warn(hsotg->dev, "can't enable workaround for >2GB RAM\n"); -- cgit v1.2.3 From 76554b87c85c0ac5ba56797dda670bad6677f9f1 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Mon, 27 May 2013 11:15:40 +0800 Subject: drivers: staging: zcache: fix compile error Fix below compile error: drivers/built-in.o: In function `zcache_pampd_free': >> zcache-main.c:(.text+0xb1c8a): undefined reference to `ramster_pampd_free' >> zcache-main.c:(.text+0xb1cbc): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_pampd_get_data_and_free': >> zcache-main.c:(.text+0xb1f05): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_cpu_notifier': >> zcache-main.c:(.text+0xb228d): undefined reference to `ramster_cpu_up' >> zcache-main.c:(.text+0xb2339): undefined reference to `ramster_cpu_down' drivers/built-in.o: In function `zcache_pampd_create': >> (.text+0xb26ce): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_pampd_create': >> (.text+0xb27ef): undefined reference to `ramster_count_foreign_pages' drivers/built-in.o: In function `zcache_put_page': >> (.text+0xb299f): undefined reference to `ramster_do_preload_flnode' drivers/built-in.o: In function `zcache_flush_page': >> (.text+0xb2ea3): undefined reference to `ramster_do_preload_flnode' drivers/built-in.o: In function `zcache_flush_object': >> (.text+0xb307c): undefined reference to `ramster_do_preload_flnode' drivers/built-in.o: In function `zcache_init': >> zcache-main.c:(.text+0xb3629): undefined reference to `ramster_register_pamops' >> zcache-main.c:(.text+0xb3868): undefined reference to `ramster_init' >> drivers/built-in.o:(.rodata+0x15058): undefined reference to `ramster_foreign_eph_pages' >> drivers/built-in.o:(.rodata+0x15078): undefined reference to `ramster_foreign_pers_pages' Reported-by: Fengguang Wu Signed-off-by: Bob Liu Acked-by: Konrad Rzeszutek Wilk Signed-off-by: Greg Kroah-Hartman --- drivers/staging/zcache/ramster.h | 4 ---- drivers/staging/zcache/ramster/debug.c | 2 ++ drivers/staging/zcache/ramster/ramster.c | 6 ++++-- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/zcache/ramster.h b/drivers/staging/zcache/ramster.h index e1f91d5a0f6a..a858666eae68 100644 --- a/drivers/staging/zcache/ramster.h +++ b/drivers/staging/zcache/ramster.h @@ -11,10 +11,6 @@ #ifndef _ZCACHE_RAMSTER_H_ #define _ZCACHE_RAMSTER_H_ -#ifdef CONFIG_RAMSTER_MODULE -#define CONFIG_RAMSTER -#endif - #ifdef CONFIG_RAMSTER #include "ramster/ramster.h" #else diff --git a/drivers/staging/zcache/ramster/debug.c b/drivers/staging/zcache/ramster/debug.c index 327e4f0d98e1..5b26ee977c2f 100644 --- a/drivers/staging/zcache/ramster/debug.c +++ b/drivers/staging/zcache/ramster/debug.c @@ -1,6 +1,8 @@ #include #include "debug.h" +ssize_t ramster_foreign_eph_pages; +ssize_t ramster_foreign_pers_pages; #ifdef CONFIG_DEBUG_FS #include diff --git a/drivers/staging/zcache/ramster/ramster.c b/drivers/staging/zcache/ramster/ramster.c index b18b887db79f..a937ce1fa27a 100644 --- a/drivers/staging/zcache/ramster/ramster.c +++ b/drivers/staging/zcache/ramster/ramster.c @@ -66,8 +66,6 @@ static int ramster_remote_target_nodenum __read_mostly = -1; /* Used by this code. */ long ramster_flnodes; -ssize_t ramster_foreign_eph_pages; -ssize_t ramster_foreign_pers_pages; /* FIXME frontswap selfshrinking knobs in debugfs? */ static LIST_HEAD(ramster_rem_op_list); @@ -399,14 +397,18 @@ void ramster_count_foreign_pages(bool eph, int count) inc_ramster_foreign_eph_pages(); } else { dec_ramster_foreign_eph_pages(); +#ifdef CONFIG_RAMSTER_DEBUG WARN_ON_ONCE(ramster_foreign_eph_pages < 0); +#endif } } else { if (count > 0) { inc_ramster_foreign_pers_pages(); } else { dec_ramster_foreign_pers_pages(); +#ifdef CONFIG_RAMSTER_DEBUG WARN_ON_ONCE(ramster_foreign_pers_pages < 0); +#endif } } } -- cgit v1.2.3 From 077f5f1c23b3cf1134c031677497dfb6077e6bdd Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 29 May 2013 11:33:52 -0400 Subject: USB: EHCI: fix regression related to qh_refresh() This patch adds some code that inadvertently got left out of commit c1fdb68e3d73741630ca16695cf9176c233be7ed (USB: EHCI: changes related to qh_refresh()). The calls to qh_refresh() and qh_link_periodic() were taken out of qh_schedule(); therefore it is necessary to call these routines manually after calling qh_schedule(). Signed-off-by: Alan Stern Reported-and-tested-by: Oleksij Rempel Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-sched.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index f3c1028a54fc..f80d0330d548 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -646,6 +646,10 @@ static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) /* reschedule QH iff another request is queued */ if (!list_empty(&qh->qtd_list) && ehci->rh_state == EHCI_RH_RUNNING) { rc = qh_schedule(ehci, qh); + if (rc == 0) { + qh_refresh(ehci, qh); + qh_link_periodic(ehci, qh); + } /* An error here likely indicates handshake failure * or no space left in the schedule. Neither fault @@ -653,9 +657,10 @@ static void end_unlink_intr(struct ehci_hcd *ehci, struct ehci_qh *qh) * * FIXME kill the now-dysfunctional queued urbs */ - if (rc != 0) + else { ehci_err(ehci, "can't reschedule qh %p, err %d\n", qh, rc); + } } /* maybe turn off periodic schedule */ -- cgit v1.2.3 From 37448adfc7ce0d6d5892b87aa8d57edde4126f49 Mon Sep 17 00:00:00 2001 From: Lance Ortiz Date: Thu, 30 May 2013 08:25:12 -0600 Subject: aerdrv: Move cper_print_aer() call out of interrupt context The following warning was seen on 3.9 when a corrected PCIe error was being handled by the AER subsystem. WARNING: at .../drivers/pci/search.c:214 pci_get_dev_by_id+0x8a/0x90() This occurred because a call to pci_get_domain_bus_and_slot() was added to cper_print_pcie() to setup for the call to cper_print_aer(). The warning showed up because cper_print_pcie() is called in an interrupt context and pci_get* functions are not supposed to be called in that context. The solution is to move the cper_print_aer() call out of the interrupt context and into aer_recover_work_func() to avoid any warnings when calling pci_get* functions. Signed-off-by: Lance Ortiz Acked-by: Borislav Petkov Acked-by: Rafael J. Wysocki Signed-off-by: Tony Luck --- drivers/acpi/apei/cper.c | 18 ------------------ drivers/acpi/apei/ghes.c | 4 +++- drivers/pci/pcie/aer/aerdrv_core.c | 5 ++++- drivers/pci/pcie/aer/aerdrv_errprint.c | 4 ++-- 4 files changed, 9 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c index fefc2ca7cc3e..33dc6a004802 100644 --- a/drivers/acpi/apei/cper.c +++ b/drivers/acpi/apei/cper.c @@ -250,10 +250,6 @@ static const char *cper_pcie_port_type_strs[] = { static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie, const struct acpi_hest_generic_data *gdata) { -#ifdef CONFIG_ACPI_APEI_PCIEAER - struct pci_dev *dev; -#endif - if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE) printk("%s""port_type: %d, %s\n", pfx, pcie->port_type, pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ? @@ -285,20 +281,6 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie, printk( "%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n", pfx, pcie->bridge.secondary_status, pcie->bridge.control); -#ifdef CONFIG_ACPI_APEI_PCIEAER - dev = pci_get_domain_bus_and_slot(pcie->device_id.segment, - pcie->device_id.bus, pcie->device_id.function); - if (!dev) { - pr_err("PCI AER Cannot get PCI device %04x:%02x:%02x.%d\n", - pcie->device_id.segment, pcie->device_id.bus, - pcie->device_id.slot, pcie->device_id.function); - return; - } - if (pcie->validation_bits & CPER_PCIE_VALID_AER_INFO) - cper_print_aer(pfx, dev, gdata->error_severity, - (struct aer_capability_regs *) pcie->aer_info); - pci_dev_put(dev); -#endif } static const char *apei_estatus_section_flag_strs[] = { diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index d668a8ae602b..403baf4dffc1 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -454,7 +454,9 @@ static void ghes_do_proc(struct ghes *ghes, aer_severity = cper_severity_to_aer(sev); aer_recover_queue(pcie_err->device_id.segment, pcie_err->device_id.bus, - devfn, aer_severity); + devfn, aer_severity, + (struct aer_capability_regs *) + pcie_err->aer_info); } } diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 8ec8b4f48560..0f4554e48cc5 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -580,6 +580,7 @@ struct aer_recover_entry u8 devfn; u16 domain; int severity; + struct aer_capability_regs *regs; }; static DEFINE_KFIFO(aer_recover_ring, struct aer_recover_entry, @@ -593,7 +594,7 @@ static DEFINE_SPINLOCK(aer_recover_ring_lock); static DECLARE_WORK(aer_recover_work, aer_recover_work_func); void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, - int severity) + int severity, struct aer_capability_regs *aer_regs) { unsigned long flags; struct aer_recover_entry entry = { @@ -601,6 +602,7 @@ void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, .devfn = devfn, .domain = domain, .severity = severity, + .regs = aer_regs, }; spin_lock_irqsave(&aer_recover_ring_lock, flags); @@ -627,6 +629,7 @@ static void aer_recover_work_func(struct work_struct *work) PCI_SLOT(entry.devfn), PCI_FUNC(entry.devfn)); continue; } + cper_print_aer(pdev, entry.severity, entry.regs); do_recovery(pdev, entry.severity); pci_dev_put(pdev); } diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c index 5ab14251839d..2c7c9f5f592c 100644 --- a/drivers/pci/pcie/aer/aerdrv_errprint.c +++ b/drivers/pci/pcie/aer/aerdrv_errprint.c @@ -220,7 +220,7 @@ int cper_severity_to_aer(int cper_severity) } EXPORT_SYMBOL_GPL(cper_severity_to_aer); -void cper_print_aer(const char *prefix, struct pci_dev *dev, int cper_severity, +void cper_print_aer(struct pci_dev *dev, int cper_severity, struct aer_capability_regs *aer) { int aer_severity, layer, agent, status_strs_size, tlp_header_valid = 0; @@ -244,7 +244,7 @@ void cper_print_aer(const char *prefix, struct pci_dev *dev, int cper_severity, agent = AER_GET_AGENT(aer_severity, status); dev_err(&dev->dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n", status, mask); - cper_print_bits(prefix, status, status_strs, status_strs_size); + cper_print_bits("", status, status_strs, status_strs_size); dev_err(&dev->dev, "aer_layer=%s, aer_agent=%s\n", aer_error_layer[layer], aer_agent_string[agent]); if (aer_severity != AER_CORRECTABLE) -- cgit v1.2.3 From e38b170695d4108eeb6cd84db36f567fc6de4120 Mon Sep 17 00:00:00 2001 From: Somnath Kotur Date: Wed, 29 May 2013 22:55:56 +0000 Subject: be2net: Mark checksum fail for IP fragmented packets HW does not compute L4 checksum for IP Fragmented packets. Signed-off-by: Kalesh AP Signed-off-by: Somnath Kotur Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be.h | 1 + drivers/net/ethernet/emulex/benet/be_hw.h | 2 +- drivers/net/ethernet/emulex/benet/be_main.c | 7 ++++++- 3 files changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h index f544b297c9ab..0a510684e468 100644 --- a/drivers/net/ethernet/emulex/benet/be.h +++ b/drivers/net/ethernet/emulex/benet/be.h @@ -262,6 +262,7 @@ struct be_rx_compl_info { u8 ipv6; u8 vtm; u8 pkt_type; + u8 ip_frag; }; struct be_rx_obj { diff --git a/drivers/net/ethernet/emulex/benet/be_hw.h b/drivers/net/ethernet/emulex/benet/be_hw.h index 3c1099b47f2a..8780183c6d1c 100644 --- a/drivers/net/ethernet/emulex/benet/be_hw.h +++ b/drivers/net/ethernet/emulex/benet/be_hw.h @@ -356,7 +356,7 @@ struct amap_eth_rx_compl_v0 { u8 ip_version; /* dword 1 */ u8 macdst[6]; /* dword 1 */ u8 vtp; /* dword 1 */ - u8 rsvd0; /* dword 1 */ + u8 ip_frag; /* dword 1 */ u8 fragndx[10]; /* dword 1 */ u8 ct[2]; /* dword 1 */ u8 sw; /* dword 1 */ diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index ca2967b0f18b..32a6927ca977 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1599,6 +1599,8 @@ static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl, compl); } rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl); + rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, + ip_frag, compl); } static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) @@ -1620,6 +1622,9 @@ static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo) else be_parse_rx_compl_v0(compl, rxcp); + if (rxcp->ip_frag) + rxcp->l4_csum = 0; + if (rxcp->vlanf) { /* vlanf could be wrongly set in some cards. * ignore if vtm is not set */ @@ -2168,7 +2173,7 @@ static irqreturn_t be_msix(int irq, void *dev) static inline bool do_gro(struct be_rx_compl_info *rxcp) { - return (rxcp->tcpf && !rxcp->err) ? true : false; + return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false; } static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi, -- cgit v1.2.3 From 01e5b2c4559d084f4eaf0d160d84cc185db141ba Mon Sep 17 00:00:00 2001 From: Somnath Kotur Date: Wed, 29 May 2013 22:56:17 +0000 Subject: be2net: Fix crash on 2nd invocation of PCI AER/EEH error_detected hook During a PCI EEH/AER error recovery flow, if the device did not successfully restart, the error_detected() hook may be called a second time with a "perm_failure" state. This patch skips over driver cleanup for the second invocation of the callback. Also, Lancer error recovery code is fixed-up to handle these changes. Signed-off-by: Kalesh AP Signed-off-by: Somnath kotur Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_cmds.c | 6 ++-- drivers/net/ethernet/emulex/benet/be_main.c | 48 ++++++++++++++--------------- 2 files changed, 26 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index a236ecd27cf3..1db2df61b8af 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -562,7 +562,7 @@ int lancer_test_and_set_rdy_state(struct be_adapter *adapter) resource_error = lancer_provisioning_error(adapter); if (resource_error) - return -1; + return -EAGAIN; status = lancer_wait_ready(adapter); if (!status) { @@ -590,8 +590,8 @@ int lancer_test_and_set_rdy_state(struct be_adapter *adapter) * when PF provisions resources. */ resource_error = lancer_provisioning_error(adapter); - if (status == -1 && !resource_error) - adapter->eeh_error = true; + if (resource_error) + status = -EAGAIN; return status; } diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 32a6927ca977..8bc1b21b1c79 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -4098,6 +4098,7 @@ static int be_get_initial_config(struct be_adapter *adapter) static int lancer_recover_func(struct be_adapter *adapter) { + struct device *dev = &adapter->pdev->dev; int status; status = lancer_test_and_set_rdy_state(adapter); @@ -4109,8 +4110,7 @@ static int lancer_recover_func(struct be_adapter *adapter) be_clear(adapter); - adapter->hw_error = false; - adapter->fw_timeout = false; + be_clear_all_error(adapter); status = be_setup(adapter); if (status) @@ -4122,13 +4122,13 @@ static int lancer_recover_func(struct be_adapter *adapter) goto err; } - dev_err(&adapter->pdev->dev, - "Adapter SLIPORT recovery succeeded\n"); + dev_err(dev, "Error recovery successful\n"); return 0; err: - if (adapter->eeh_error) - dev_err(&adapter->pdev->dev, - "Adapter SLIPORT recovery failed\n"); + if (status == -EAGAIN) + dev_err(dev, "Waiting for resource provisioning\n"); + else + dev_err(dev, "Error recovery failed\n"); return status; } @@ -4137,28 +4137,27 @@ static void be_func_recovery_task(struct work_struct *work) { struct be_adapter *adapter = container_of(work, struct be_adapter, func_recovery_work.work); - int status; + int status = 0; be_detect_error(adapter); if (adapter->hw_error && lancer_chip(adapter)) { - if (adapter->eeh_error) - goto out; - rtnl_lock(); netif_device_detach(adapter->netdev); rtnl_unlock(); status = lancer_recover_func(adapter); - if (!status) netif_device_attach(adapter->netdev); } -out: - schedule_delayed_work(&adapter->func_recovery_work, - msecs_to_jiffies(1000)); + /* In Lancer, for all errors other than provisioning error (-EAGAIN), + * no need to attempt further recovery. + */ + if (!status || status == -EAGAIN) + schedule_delayed_work(&adapter->func_recovery_work, + msecs_to_jiffies(1000)); } static void be_worker(struct work_struct *work) @@ -4441,20 +4440,19 @@ static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev, dev_err(&adapter->pdev->dev, "EEH error detected\n"); - adapter->eeh_error = true; - - cancel_delayed_work_sync(&adapter->func_recovery_work); + if (!adapter->eeh_error) { + adapter->eeh_error = true; - rtnl_lock(); - netif_device_detach(netdev); - rtnl_unlock(); + cancel_delayed_work_sync(&adapter->func_recovery_work); - if (netif_running(netdev)) { rtnl_lock(); - be_close(netdev); + netif_device_detach(netdev); + if (netif_running(netdev)) + be_close(netdev); rtnl_unlock(); + + be_clear(adapter); } - be_clear(adapter); if (state == pci_channel_io_perm_failure) return PCI_ERS_RESULT_DISCONNECT; @@ -4479,7 +4477,6 @@ static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) int status; dev_info(&adapter->pdev->dev, "EEH reset\n"); - be_clear_all_error(adapter); status = pci_enable_device(pdev); if (status) @@ -4497,6 +4494,7 @@ static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev) return PCI_ERS_RESULT_DISCONNECT; pci_cleanup_aer_uncorrect_error_status(pdev); + be_clear_all_error(adapter); return PCI_ERS_RESULT_RECOVERED; } -- cgit v1.2.3 From 21363ca873334391992f2f424856aa864345bb61 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 29 May 2013 21:35:23 -0700 Subject: target/file: Fix off-by-one READ_CAPACITY bug for !S_ISBLK export This patch fixes a bug where FILEIO was incorrectly reporting the number of logical blocks (+ 1) when using non struct block_device export mode. It changes fd_get_blocks() to follow all other backend ->get_blocks() cases, and reduces the calculated dev_size by one dev->dev_attrib.block_size number of bytes, and also fixes initial fd_block_size assignment at fd_configure_device() time introduced in commit 0fd97ccf4. Reported-by: Wenchao Xia Reported-by: Badari Pulavarty Tested-by: Badari Pulavarty Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_file.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c index 1b1d544e927a..b11890d85120 100644 --- a/drivers/target/target_core_file.c +++ b/drivers/target/target_core_file.c @@ -153,6 +153,7 @@ static int fd_configure_device(struct se_device *dev) struct request_queue *q = bdev_get_queue(inode->i_bdev); unsigned long long dev_size; + fd_dev->fd_block_size = bdev_logical_block_size(inode->i_bdev); /* * Determine the number of bytes from i_size_read() minus * one (1) logical sector from underlying struct block_device @@ -199,6 +200,7 @@ static int fd_configure_device(struct se_device *dev) goto fail; } + fd_dev->fd_block_size = FD_BLOCKSIZE; /* * Limit UNMAP emulation to 8k Number of LBAs (NoLB) */ @@ -217,9 +219,7 @@ static int fd_configure_device(struct se_device *dev) dev->dev_attrib.max_write_same_len = 0x1000; } - fd_dev->fd_block_size = dev->dev_attrib.hw_block_size; - - dev->dev_attrib.hw_block_size = FD_BLOCKSIZE; + dev->dev_attrib.hw_block_size = fd_dev->fd_block_size; dev->dev_attrib.hw_max_sectors = FD_MAX_SECTORS; dev->dev_attrib.hw_queue_depth = FD_MAX_DEVICE_QUEUE_DEPTH; @@ -694,11 +694,12 @@ static sector_t fd_get_blocks(struct se_device *dev) * to handle underlying block_device resize operations. */ if (S_ISBLK(i->i_mode)) - dev_size = (i_size_read(i) - fd_dev->fd_block_size); + dev_size = i_size_read(i); else dev_size = fd_dev->fd_dev_size; - return div_u64(dev_size, dev->dev_attrib.block_size); + return div_u64(dev_size - dev->dev_attrib.block_size, + dev->dev_attrib.block_size); } static struct sbc_ops fd_sbc_ops = { -- cgit v1.2.3 From cea4dcfdad926a27a18e188720efe0f2c9403456 Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Thu, 23 May 2013 10:32:17 -0700 Subject: iscsi-target: fix heap buffer overflow on error If a key was larger than 64 bytes, as checked by iscsi_check_key(), the error response packet, generated by iscsi_add_notunderstood_response(), would still attempt to copy the entire key into the packet, overflowing the structure on the heap. Remote preauthentication kernel memory corruption was possible if a target was configured and listening on the network. CVE-2013-2850 Signed-off-by: Kees Cook Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target_parameters.c | 8 +++----- drivers/target/iscsi/iscsi_target_parameters.h | 4 +++- 2 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c index c2185fc31136..e38222191a33 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.c +++ b/drivers/target/iscsi/iscsi_target_parameters.c @@ -758,9 +758,9 @@ static int iscsi_add_notunderstood_response( } INIT_LIST_HEAD(&extra_response->er_list); - strncpy(extra_response->key, key, strlen(key) + 1); - strncpy(extra_response->value, NOTUNDERSTOOD, - strlen(NOTUNDERSTOOD) + 1); + strlcpy(extra_response->key, key, sizeof(extra_response->key)); + strlcpy(extra_response->value, NOTUNDERSTOOD, + sizeof(extra_response->value)); list_add_tail(&extra_response->er_list, ¶m_list->extra_response_list); @@ -1629,8 +1629,6 @@ int iscsi_decode_text_input( if (phase & PHASE_SECURITY) { if (iscsi_check_for_auth_key(key) > 0) { - char *tmpptr = key + strlen(key); - *tmpptr = '='; kfree(tmpbuf); return 1; } diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h index 915b06798505..a47046a752aa 100644 --- a/drivers/target/iscsi/iscsi_target_parameters.h +++ b/drivers/target/iscsi/iscsi_target_parameters.h @@ -1,8 +1,10 @@ #ifndef ISCSI_PARAMETERS_H #define ISCSI_PARAMETERS_H +#include + struct iscsi_extra_response { - char key[64]; + char key[KEY_MAXLEN]; char value[32]; struct list_head er_list; } ____cacheline_aligned; -- cgit v1.2.3 From d68c380590c390a488fe214e5ebf9439216ac3ba Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 27 May 2013 12:28:25 -0300 Subject: clk: mxs: Include clk mxs header file Fix the following sparse warnings: drivers/clk/mxs/clk-imx28.c:72:5: warning: symbol 'mxs_saif_clkmux_select' was not declared. Should it be static? drivers/clk/mxs/clk-imx28.c:156:12: warning: symbol 'mx28_clocks_init' was not declared. Should it be static? Signed-off-by: Fabio Estevam Acked-by: Shawn Guo Signed-off-by: Mike Turquette [mturquette@linaro.org: fixed $SUBJECT line] --- drivers/clk/mxs/clk-imx28.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index d0e5eed146de..4faf0afc44cd 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -10,6 +10,7 @@ */ #include +#include #include #include #include -- cgit v1.2.3 From 970fa986fadb1165cf38b45b70e98302a3bee497 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 31 May 2013 12:45:09 +1000 Subject: drm/qxl: fix build warnings on 32-bit Just the usual printk related warnings. Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_ioctl.c | 4 ++-- drivers/gpu/drm/qxl/qxl_kms.c | 9 +++++---- 2 files changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c index 6db7370373ea..a4b71b25fa53 100644 --- a/drivers/gpu/drm/qxl/qxl_ioctl.c +++ b/drivers/gpu/drm/qxl/qxl_ioctl.c @@ -151,7 +151,7 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, struct qxl_bo *cmd_bo; int release_type; struct drm_qxl_command *commands = - (struct drm_qxl_command *)execbuffer->commands; + (struct drm_qxl_command *)(uintptr_t)execbuffer->commands; if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num], sizeof(user_cmd))) @@ -193,7 +193,7 @@ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, for (i = 0 ; i < user_cmd.relocs_num; ++i) { if (DRM_COPY_FROM_USER(&reloc, - &((struct drm_qxl_reloc *)user_cmd.relocs)[i], + &((struct drm_qxl_reloc *)(uintptr_t)user_cmd.relocs)[i], sizeof(reloc))) { qxl_bo_list_unreserve(&reloc_list, true); qxl_release_unreserve(qdev, release); diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c index 85127ed24cfd..e27ce2a907cf 100644 --- a/drivers/gpu/drm/qxl/qxl_kms.c +++ b/drivers/gpu/drm/qxl/qxl_kms.c @@ -128,12 +128,13 @@ int qxl_device_init(struct qxl_device *qdev, qdev->vram_mapping = io_mapping_create_wc(qdev->vram_base, pci_resource_len(pdev, 0)); qdev->surface_mapping = io_mapping_create_wc(qdev->surfaceram_base, qdev->surfaceram_size); - DRM_DEBUG_KMS("qxl: vram %p-%p(%dM %dk), surface %p-%p(%dM %dk)\n", - (void *)qdev->vram_base, (void *)pci_resource_end(pdev, 0), + DRM_DEBUG_KMS("qxl: vram %llx-%llx(%dM %dk), surface %llx-%llx(%dM %dk)\n", + (unsigned long long)qdev->vram_base, + (unsigned long long)pci_resource_end(pdev, 0), (int)pci_resource_len(pdev, 0) / 1024 / 1024, (int)pci_resource_len(pdev, 0) / 1024, - (void *)qdev->surfaceram_base, - (void *)pci_resource_end(pdev, 1), + (unsigned long long)qdev->surfaceram_base, + (unsigned long long)pci_resource_end(pdev, 1), (int)qdev->surfaceram_size / 1024 / 1024, (int)qdev->surfaceram_size / 1024); -- cgit v1.2.3 From d5ddad4168348337d98d6b8f156a3892de444411 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 31 May 2013 00:46:11 -0700 Subject: target: Propigate up ->cmd_kref put return via transport_generic_free_cmd Go ahead and propigate up the ->cmd_kref put return value from target_put_sess_cmd() -> transport_release_cmd() -> transport_put_cmd() -> transport_generic_free_cmd(). This is useful for certain fabrics when determining the active I/O shutdown case with SCF_ACK_KREF where a final target_put_sess_cmd() is still required by the caller. Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_transport.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index bbca144821c5..21e315874a54 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -65,7 +65,7 @@ static void transport_complete_task_attr(struct se_cmd *cmd); static void transport_handle_queue_full(struct se_cmd *cmd, struct se_device *dev); static int transport_generic_get_mem(struct se_cmd *cmd); -static void transport_put_cmd(struct se_cmd *cmd); +static int transport_put_cmd(struct se_cmd *cmd); static void target_complete_ok_work(struct work_struct *work); int init_se_kmem_caches(void) @@ -1944,7 +1944,7 @@ static inline void transport_free_pages(struct se_cmd *cmd) * This routine unconditionally frees a command, and reference counting * or list removal must be done in the caller. */ -static void transport_release_cmd(struct se_cmd *cmd) +static int transport_release_cmd(struct se_cmd *cmd) { BUG_ON(!cmd->se_tfo); @@ -1956,11 +1956,11 @@ static void transport_release_cmd(struct se_cmd *cmd) * If this cmd has been setup with target_get_sess_cmd(), drop * the kref and call ->release_cmd() in kref callback. */ - if (cmd->check_release != 0) { - target_put_sess_cmd(cmd->se_sess, cmd); - return; - } + if (cmd->check_release != 0) + return target_put_sess_cmd(cmd->se_sess, cmd); + cmd->se_tfo->release_cmd(cmd); + return 1; } /** @@ -1969,7 +1969,7 @@ static void transport_release_cmd(struct se_cmd *cmd) * * This routine releases our reference to the command and frees it if possible. */ -static void transport_put_cmd(struct se_cmd *cmd) +static int transport_put_cmd(struct se_cmd *cmd) { unsigned long flags; @@ -1977,7 +1977,7 @@ static void transport_put_cmd(struct se_cmd *cmd) if (atomic_read(&cmd->t_fe_count) && !atomic_dec_and_test(&cmd->t_fe_count)) { spin_unlock_irqrestore(&cmd->t_state_lock, flags); - return; + return 0; } if (cmd->transport_state & CMD_T_DEV_ACTIVE) { @@ -1987,8 +1987,7 @@ static void transport_put_cmd(struct se_cmd *cmd) spin_unlock_irqrestore(&cmd->t_state_lock, flags); transport_free_pages(cmd); - transport_release_cmd(cmd); - return; + return transport_release_cmd(cmd); } void *transport_kmap_data_sg(struct se_cmd *cmd) @@ -2153,13 +2152,15 @@ static void transport_write_pending_qf(struct se_cmd *cmd) } } -void transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) +int transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) { + int ret = 0; + if (!(cmd->se_cmd_flags & SCF_SE_LUN_CMD)) { if (wait_for_tasks && (cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) transport_wait_for_tasks(cmd); - transport_release_cmd(cmd); + ret = transport_release_cmd(cmd); } else { if (wait_for_tasks) transport_wait_for_tasks(cmd); @@ -2167,8 +2168,9 @@ void transport_generic_free_cmd(struct se_cmd *cmd, int wait_for_tasks) if (cmd->se_lun) transport_lun_remove_cmd(cmd); - transport_put_cmd(cmd); + ret = transport_put_cmd(cmd); } + return ret; } EXPORT_SYMBOL(transport_generic_free_cmd); -- cgit v1.2.3 From aafc9d158b0039e600fc429246c7bb04a111fb26 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 31 May 2013 00:49:41 -0700 Subject: iscsi-target: Fix iscsit_free_cmd() se_cmd->cmd_kref shutdown handling With the introduction of target_get_sess_cmd() referencing counting for ISCSI_OP_SCSI_CMD processing with iser-target, iscsit_free_cmd() usage in traditional iscsi-target driver code now needs to be aware of the active I/O shutdown case when a remaining se_cmd->cmd_kref reference may exist after transport_generic_free_cmd() completes, requiring a final target_put_sess_cmd() to release iscsi_cmd descriptor memory. This patch changes iscsit_free_cmd() to invoke __iscsit_free_cmd() before transport_generic_free_cmd() -> target_put_sess_cmd(), and also avoids aquiring the per-connection queue locks for typical fast-path calls during normal ISTATE_REMOVE operation. Also update iscsit_free_cmd() usage throughout iscsi-target to use the new 'bool shutdown' parameter. This patch fixes a regression bug introduced during v3.10-rc1 in commit 3e1c81a95, that was causing the following WARNING to appear: [ 257.235153] ------------[ cut here]------------ [ 257.240314] WARNING: at kernel/softirq.c:160 local_bh_enable_ip+0x3c/0x86() [ 257.248089] Modules linked in: vhost_scsi ib_srpt ib_cm ib_sa ib_mad ib_core tcm_qla2xxx tcm_loop tcm_fc libfc iscsi_target_mod target_core_pscsi target_core_file target_core_iblock target_core_mod configfs ipv6 iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi loop acpi_cpufreq freq_table mperf kvm_intel kvm crc32c_intel button ehci_pci pcspkr joydev i2c_i801 microcode ext3 jbd raid10 raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1 raid0 linear igb hwmon i2c_algo_bit i2c_core ptp ata_piix libata qla2xxx uhci_hcd ehci_hcd mlx4_core scsi_transport_fc scsi_tgt pps_core [ 257.308748] CPU: 1 PID: 3295 Comm: iscsi_ttx Not tainted 3.10.0-rc2+ #103 [ 257.316329] Hardware name: Intel Corporation S5520HC/S5520HC, BIOS S5500.86B.01.00.0057.031020111721 03/10/2011 [ 257.327597] ffffffff814c24b7 ffff880458331b58 ffffffff8138eef2 ffff880458331b98 [ 257.335892] ffffffff8102c052 ffff880400000008 0000000000000000 ffff88085bdf0000 [ 257.344191] ffff88085bdf00d8 ffff88085bdf00e0 ffff88085bdf00f8 ffff880458331ba8 [ 257.352488] Call Trace: [ 257.355223] [] dump_stack+0x19/0x1f [ 257.360963] [] warn_slowpath_common+0x62/0x7b [ 257.367669] [] warn_slowpath_null+0x15/0x17 [ 257.374181] [] local_bh_enable_ip+0x3c/0x86 [ 257.380697] [] _raw_spin_unlock_bh+0x10/0x12 [ 257.387311] [] iscsit_free_r2ts_from_list+0x5e/0x67 [iscsi_target_mod] [ 257.396438] [] iscsit_release_cmd+0x20/0x223 [iscsi_target_mod] [ 257.404893] [] lio_release_cmd+0x3a/0x3e [iscsi_target_mod] [ 257.412964] [] target_release_cmd_kref+0x7a/0x7c [target_core_mod] [ 257.421712] [] target_put_sess_cmd+0x5f/0x7f [target_core_mod] [ 257.430071] [] transport_release_cmd+0x59/0x6f [target_core_mod] [ 257.438625] [] transport_put_cmd+0x131/0x140 [target_core_mod] [ 257.446985] [] ? transport_wait_for_tasks+0xfa/0x1d5 [target_core_mod] [ 257.456121] [] transport_generic_free_cmd+0x4e/0x52 [target_core_mod] [ 257.465159] [] ? __migrate_task+0x110/0x110 [ 257.471674] [] iscsit_free_cmd+0x46/0x55 [iscsi_target_mod] [ 257.479741] [] iscsit_immediate_queue+0x301/0x353 [iscsi_target_mod] [ 257.488683] [] iscsi_target_tx_thread+0x1c6/0x2a8 [iscsi_target_mod] [ 257.497623] [] ? wake_up_bit+0x25/0x25 [ 257.503652] [] ? iscsit_ack_from_expstatsn+0xd5/0xd5 [iscsi_target_mod] [ 257.512882] [] kthread+0xb0/0xb8 [ 257.518329] [] ? kthread_freezable_should_stop+0x60/0x60 [ 257.526105] [] ret_from_fork+0x7c/0xb0 [ 257.532133] [] ? kthread_freezable_should_stop+0x60/0x60 [ 257.539906] ---[ end trace 5520397d0f2e0800 ]--- Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target.c | 12 ++++---- drivers/target/iscsi/iscsi_target_erl2.c | 12 ++++---- drivers/target/iscsi/iscsi_target_util.c | 50 +++++++++++++++++++++++--------- drivers/target/iscsi/iscsi_target_util.h | 2 +- 4 files changed, 50 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 262ef1f23b38..d7705e5824fb 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -651,7 +651,7 @@ static int iscsit_add_reject( cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL); if (!cmd->buf_ptr) { pr_err("Unable to allocate memory for cmd->buf_ptr\n"); - iscsit_release_cmd(cmd); + iscsit_free_cmd(cmd, false); return -1; } @@ -697,7 +697,7 @@ int iscsit_add_reject_from_cmd( cmd->buf_ptr = kmemdup(buf, ISCSI_HDR_LEN, GFP_KERNEL); if (!cmd->buf_ptr) { pr_err("Unable to allocate memory for cmd->buf_ptr\n"); - iscsit_release_cmd(cmd); + iscsit_free_cmd(cmd, false); return -1; } @@ -1743,7 +1743,7 @@ int iscsit_handle_nop_out(struct iscsi_conn *conn, struct iscsi_cmd *cmd, return 0; out: if (cmd) - iscsit_release_cmd(cmd); + iscsit_free_cmd(cmd, false); ping_out: kfree(ping_data); return ret; @@ -2251,7 +2251,7 @@ iscsit_handle_logout_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd, if (conn->conn_state != TARG_CONN_STATE_LOGGED_IN) { pr_err("Received logout request on connection that" " is not in logged in state, ignoring request.\n"); - iscsit_release_cmd(cmd); + iscsit_free_cmd(cmd, false); return 0; } @@ -3665,7 +3665,7 @@ iscsit_immediate_queue(struct iscsi_conn *conn, struct iscsi_cmd *cmd, int state list_del(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, false); break; case ISTATE_SEND_NOPIN_WANT_RESPONSE: iscsit_mod_nopin_response_timer(conn); @@ -4122,7 +4122,7 @@ static void iscsit_release_commands_from_conn(struct iscsi_conn *conn) iscsit_increment_maxcmdsn(cmd, sess); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock_bh(&conn->cmd_lock); } diff --git a/drivers/target/iscsi/iscsi_target_erl2.c b/drivers/target/iscsi/iscsi_target_erl2.c index ba6091bf93fc..45a5afd5ea13 100644 --- a/drivers/target/iscsi/iscsi_target_erl2.c +++ b/drivers/target/iscsi/iscsi_target_erl2.c @@ -143,7 +143,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess) list_del(&cmd->i_conn_node); cmd->conn = NULL; spin_unlock(&cr->conn_recovery_cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock(&cr->conn_recovery_cmd_lock); } spin_unlock(&cr->conn_recovery_cmd_lock); @@ -165,7 +165,7 @@ void iscsit_free_connection_recovery_entires(struct iscsi_session *sess) list_del(&cmd->i_conn_node); cmd->conn = NULL; spin_unlock(&cr->conn_recovery_cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock(&cr->conn_recovery_cmd_lock); } spin_unlock(&cr->conn_recovery_cmd_lock); @@ -248,7 +248,7 @@ void iscsit_discard_cr_cmds_by_expstatsn( iscsit_remove_cmd_from_connection_recovery(cmd, sess); spin_unlock(&cr->conn_recovery_cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock(&cr->conn_recovery_cmd_lock); } spin_unlock(&cr->conn_recovery_cmd_lock); @@ -302,7 +302,7 @@ int iscsit_discard_unacknowledged_ooo_cmdsns_for_conn(struct iscsi_conn *conn) list_del(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock_bh(&conn->cmd_lock); } spin_unlock_bh(&conn->cmd_lock); @@ -355,7 +355,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn) list_del(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock_bh(&conn->cmd_lock); continue; } @@ -375,7 +375,7 @@ int iscsit_prepare_cmds_for_realligance(struct iscsi_conn *conn) iscsi_sna_gte(cmd->cmd_sn, conn->sess->exp_cmd_sn)) { list_del(&cmd->i_conn_node); spin_unlock_bh(&conn->cmd_lock); - iscsit_free_cmd(cmd); + iscsit_free_cmd(cmd, true); spin_lock_bh(&conn->cmd_lock); continue; } diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c index 2cc6c9a3ffb8..08a3bacef0c5 100644 --- a/drivers/target/iscsi/iscsi_target_util.c +++ b/drivers/target/iscsi/iscsi_target_util.c @@ -676,40 +676,56 @@ void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *conn) void iscsit_release_cmd(struct iscsi_cmd *cmd) { - struct iscsi_conn *conn = cmd->conn; - - iscsit_free_r2ts_from_list(cmd); - iscsit_free_all_datain_reqs(cmd); - kfree(cmd->buf_ptr); kfree(cmd->pdu_list); kfree(cmd->seq_list); kfree(cmd->tmr_req); kfree(cmd->iov_data); - if (conn) { + kmem_cache_free(lio_cmd_cache, cmd); +} + +static void __iscsit_free_cmd(struct iscsi_cmd *cmd, bool scsi_cmd, + bool check_queues) +{ + struct iscsi_conn *conn = cmd->conn; + + if (scsi_cmd) { + if (cmd->data_direction == DMA_TO_DEVICE) { + iscsit_stop_dataout_timer(cmd); + iscsit_free_r2ts_from_list(cmd); + } + if (cmd->data_direction == DMA_FROM_DEVICE) + iscsit_free_all_datain_reqs(cmd); + } + + if (conn && check_queues) { iscsit_remove_cmd_from_immediate_queue(cmd, conn); iscsit_remove_cmd_from_response_queue(cmd, conn); } - - kmem_cache_free(lio_cmd_cache, cmd); } -void iscsit_free_cmd(struct iscsi_cmd *cmd) +void iscsit_free_cmd(struct iscsi_cmd *cmd, bool shutdown) { + struct se_cmd *se_cmd = NULL; + int rc; /* * Determine if a struct se_cmd is associated with * this struct iscsi_cmd. */ switch (cmd->iscsi_opcode) { case ISCSI_OP_SCSI_CMD: - if (cmd->data_direction == DMA_TO_DEVICE) - iscsit_stop_dataout_timer(cmd); + se_cmd = &cmd->se_cmd; + __iscsit_free_cmd(cmd, true, shutdown); /* * Fallthrough */ case ISCSI_OP_SCSI_TMFUNC: - transport_generic_free_cmd(&cmd->se_cmd, 1); + rc = transport_generic_free_cmd(&cmd->se_cmd, 1); + if (!rc && shutdown && se_cmd && se_cmd->se_sess) { + __iscsit_free_cmd(cmd, true, shutdown); + target_put_sess_cmd(se_cmd->se_sess, se_cmd); + } break; case ISCSI_OP_REJECT: /* @@ -718,11 +734,19 @@ void iscsit_free_cmd(struct iscsi_cmd *cmd) * associated cmd->se_cmd needs to be released. */ if (cmd->se_cmd.se_tfo != NULL) { - transport_generic_free_cmd(&cmd->se_cmd, 1); + se_cmd = &cmd->se_cmd; + __iscsit_free_cmd(cmd, true, shutdown); + + rc = transport_generic_free_cmd(&cmd->se_cmd, 1); + if (!rc && shutdown && se_cmd->se_sess) { + __iscsit_free_cmd(cmd, true, shutdown); + target_put_sess_cmd(se_cmd->se_sess, se_cmd); + } break; } /* Fall-through */ default: + __iscsit_free_cmd(cmd, false, shutdown); cmd->release_cmd(cmd); break; } diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h index 4f8e01a47081..a4422659d049 100644 --- a/drivers/target/iscsi/iscsi_target_util.h +++ b/drivers/target/iscsi/iscsi_target_util.h @@ -29,7 +29,7 @@ extern void iscsit_remove_cmd_from_tx_queues(struct iscsi_cmd *, struct iscsi_co extern bool iscsit_conn_all_queues_empty(struct iscsi_conn *); extern void iscsit_free_queue_reqs_for_conn(struct iscsi_conn *); extern void iscsit_release_cmd(struct iscsi_cmd *); -extern void iscsit_free_cmd(struct iscsi_cmd *); +extern void iscsit_free_cmd(struct iscsi_cmd *, bool); extern int iscsit_check_session_usage_count(struct iscsi_session *); extern void iscsit_dec_session_usage_count(struct iscsi_session *); extern void iscsit_inc_session_usage_count(struct iscsi_session *); -- cgit v1.2.3 From 8b811bae69cf30e0a9676d7dcafb0cf16f13b3bc Mon Sep 17 00:00:00 2001 From: Stefan Weinhuber Date: Tue, 28 May 2013 15:26:06 +0200 Subject: s390/dasd: fix handling of gone paths When a path is gone and dasd_generic_path_event is called with a PE_PATH_GONE event, we must assume that any I/O request on that subchannel is still running. This is unlike the dasd_generic_notify handler and the CIO_NO_PATH event, which implies that the subchannel has been cleared. If dasd_generic_path_event finds that the path has been the last usable path, it must not call dasd_generic_last_path_gone (which would reset the state of running requests), but just set the DASD_STOPPED_DC_WAIT bit. Signed-off-by: Stefan Weinhuber Signed-off-by: Martin Schwidefsky --- drivers/s390/block/dasd.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 4361d9772c42..d72a9216ee2e 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -3440,8 +3440,16 @@ void dasd_generic_path_event(struct ccw_device *cdev, int *path_event) device->path_data.opm &= ~eventlpm; device->path_data.ppm &= ~eventlpm; device->path_data.npm &= ~eventlpm; - if (oldopm && !device->path_data.opm) - dasd_generic_last_path_gone(device); + if (oldopm && !device->path_data.opm) { + dev_warn(&device->cdev->dev, + "No verified channel paths remain " + "for the device\n"); + DBF_DEV_EVENT(DBF_WARNING, device, + "%s", "last verified path gone"); + dasd_eer_write(device, NULL, DASD_EER_NOPATH); + dasd_device_set_stop_bits(device, + DASD_STOPPED_DC_WAIT); + } } if (path_event[chp] & PE_PATH_AVAILABLE) { device->path_data.opm &= ~eventlpm; -- cgit v1.2.3 From 801d9d26bfd6e88e9cf0efbb30b649d1bdc15dcf Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Wed, 29 May 2013 13:26:53 +0100 Subject: fix buffer leak after "scsi: saner replacements for ->proc_info()" That patch failed to set proc_scsi_fops' .release method. Signed-off-by: Jan Beulich Signed-off-by: Al Viro --- drivers/scsi/scsi_proc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c index db66357211ed..86f0c5d5c116 100644 --- a/drivers/scsi/scsi_proc.c +++ b/drivers/scsi/scsi_proc.c @@ -84,6 +84,7 @@ static int proc_scsi_host_open(struct inode *inode, struct file *file) static const struct file_operations proc_scsi_fops = { .open = proc_scsi_host_open, + .release = single_release, .read = seq_read, .llseek = seq_lseek, .write = proc_scsi_host_write -- cgit v1.2.3 From 65ac057bce426b4abdf42384c4e09e40a634df32 Mon Sep 17 00:00:00 2001 From: Richard Genoud Date: Fri, 31 May 2013 14:28:38 +0000 Subject: trivial: atmel_lcdfb: add missing error message When a too small framebuffer is given, the atmel_lcdfb_check_var silently fails. Adding an error message will save some head scratching. Signed-off-by: Richard Genoud Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- drivers/video/atmel_lcdfb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 540909de6247..6e6491fb83b7 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -461,8 +461,11 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, if (info->fix.smem_len) { unsigned int smem_len = (var->xres_virtual * var->yres_virtual * ((var->bits_per_pixel + 7) / 8)); - if (smem_len > info->fix.smem_len) + if (smem_len > info->fix.smem_len) { + dev_err(dev, "Frame buffer is too small (%u) for screen size (need at least %u)\n", + info->fix.smem_len, smem_len); return -EINVAL; + } } /* Saturate vertical and horizontal timings at maximum values */ -- cgit v1.2.3 From 56c21b53ab071feb3ce93375a563ead745fa7105 Mon Sep 17 00:00:00 2001 From: Richard Genoud Date: Fri, 31 May 2013 15:49:35 +0000 Subject: atmel_lcdfb: blank the backlight on remove When removing atmel_lcdfb module, the backlight is unregistered but not blanked. (only for CONFIG_BACKLIGHT_ATMEL_LCDC case). This can result in the screen going full white depending on how the PWM is wired. Signed-off-by: Richard Genoud Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- drivers/video/atmel_lcdfb.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c index 6e6491fb83b7..effdb373b8db 100644 --- a/drivers/video/atmel_lcdfb.c +++ b/drivers/video/atmel_lcdfb.c @@ -223,8 +223,14 @@ static void init_backlight(struct atmel_lcdfb_info *sinfo) static void exit_backlight(struct atmel_lcdfb_info *sinfo) { - if (sinfo->backlight) - backlight_device_unregister(sinfo->backlight); + if (!sinfo->backlight) + return; + + if (sinfo->backlight->ops) { + sinfo->backlight->props.power = FB_BLANK_POWERDOWN; + sinfo->backlight->ops->update_status(sinfo->backlight); + } + backlight_device_unregister(sinfo->backlight); } #else -- cgit v1.2.3 From 4ad1f70ebcdb69393ce083f514bf4a4a3a3e65cb Mon Sep 17 00:00:00 2001 From: Al Viro Date: Thu, 23 May 2013 04:38:22 -0400 Subject: zoran: racy refcount handling in vm_ops ->open()/->close() worse, we lock ->resource_lock too late when we are destroying the final clonal VMA; the check for lack of other mappings of the same opened file can race with mmap(). Signed-off-by: Al Viro --- drivers/media/pci/zoran/zoran.h | 2 +- drivers/media/pci/zoran/zoran_driver.c | 15 ++++++++------- 2 files changed, 9 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/media/pci/zoran/zoran.h b/drivers/media/pci/zoran/zoran.h index ca2754a3cd63..5e040085c2ff 100644 --- a/drivers/media/pci/zoran/zoran.h +++ b/drivers/media/pci/zoran/zoran.h @@ -176,7 +176,7 @@ struct zoran_fh; struct zoran_mapping { struct zoran_fh *fh; - int count; + atomic_t count; }; struct zoran_buffer { diff --git a/drivers/media/pci/zoran/zoran_driver.c b/drivers/media/pci/zoran/zoran_driver.c index 1168a84a737d..d133c30c3fdc 100644 --- a/drivers/media/pci/zoran/zoran_driver.c +++ b/drivers/media/pci/zoran/zoran_driver.c @@ -2803,8 +2803,7 @@ static void zoran_vm_open (struct vm_area_struct *vma) { struct zoran_mapping *map = vma->vm_private_data; - - map->count++; + atomic_inc(&map->count); } static void @@ -2815,7 +2814,7 @@ zoran_vm_close (struct vm_area_struct *vma) struct zoran *zr = fh->zr; int i; - if (--map->count > 0) + if (!atomic_dec_and_mutex_lock(&map->count, &zr->resource_lock)) return; dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr), @@ -2828,14 +2827,16 @@ zoran_vm_close (struct vm_area_struct *vma) kfree(map); /* Any buffers still mapped? */ - for (i = 0; i < fh->buffers.num_buffers; i++) - if (fh->buffers.buffer[i].map) + for (i = 0; i < fh->buffers.num_buffers; i++) { + if (fh->buffers.buffer[i].map) { + mutex_unlock(&zr->resource_lock); return; + } + } dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode)); - mutex_lock(&zr->resource_lock); if (fh->map_mode == ZORAN_MAP_MODE_RAW) { if (fh->buffers.active != ZORAN_FREE) { @@ -2939,7 +2940,7 @@ zoran_mmap (struct file *file, goto mmap_unlock_and_return; } map->fh = fh; - map->count = 1; + atomic_set(&map->count, 1); vma->vm_ops = &zoran_vm_ops; vma->vm_flags |= VM_DONTEXPAND; -- cgit v1.2.3 From 3f3e7ce4ff87c8ea69acaa7700699fb26baa2914 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 29 May 2013 05:02:57 +0000 Subject: team: fix port list dump for big number of ports In case the port list dump does not fit into one skb currently the dump would start over again. Fix this by continue from the last dumped port. Introduced by commit d90f889e9c (team: handle sending port list in the same way option list is sent) Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- drivers/net/team/team.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 7c43261975bd..d016a76ad44b 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2374,7 +2374,8 @@ static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, bool incomplete; int i; - port = list_first_entry(&team->port_list, struct team_port, list); + port = list_first_entry_or_null(&team->port_list, + struct team_port, list); start_again: err = __send_and_alloc_skb(&skb, team, portid, send_func); @@ -2402,8 +2403,8 @@ start_again: err = team_nl_fill_one_port_get(skb, one_port); if (err) goto errout; - } else { - list_for_each_entry(port, &team->port_list, list) { + } else if (port) { + list_for_each_entry_from(port, &team->port_list, list) { err = team_nl_fill_one_port_get(skb, port); if (err) { if (err == -EMSGSIZE) { -- cgit v1.2.3 From c802db1164f28e62c6a43132b8d290cb8113f2ac Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Tue, 28 May 2013 06:15:56 +0000 Subject: hyperv: Fix vlan_proto setting in netvsc_recv_callback() Since the recent addition of 8021AD, we need to set the new field vlan_proto in sk_buff. Otherwise, it will trigger BUG() call in vlan_proto_idx(). This patch fixes the problem. Signed-off-by: Haiyang Zhang Reviewed-by: K. Y. Srinivasan Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 088c55496191..ab2307b5d9a7 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -284,7 +285,7 @@ int netvsc_recv_callback(struct hv_device *device_obj, skb->protocol = eth_type_trans(skb, net); skb->ip_summed = CHECKSUM_NONE; - skb->vlan_tci = packet->vlan_tci; + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), packet->vlan_tci); net->stats.rx_packets++; net->stats.rx_bytes += packet->total_data_buflen; -- cgit v1.2.3 From b47d4934e71d918814aee4a1d0211f81329b767e Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 30 May 2013 11:45:39 -0600 Subject: parisc/PCI: Set type for LBA bus_num resource The non-PAT resource probing code failed to set the type of the LBA bus_num resource (30aa80da43 "parisc/PCI: register busn_res for root buses" did the corresponding thing for the PAT case). This causes incorrect resource assignments and a non-working stifb framebuffer on most parisc machines. Signed-off-by: Bjorn Helgaas Signed-off-by: Helge Deller --- drivers/parisc/lba_pci.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 2ef7103270bb..5d25038ef4b0 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -1096,6 +1096,7 @@ lba_legacy_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev) r->name = "LBA PCI Busses"; r->start = lba_num & 0xff; r->end = (lba_num>>8) & 0xff; + r->flags = IORESOURCE_BUS; /* Set up local PCI Bus resources - we don't need them for ** Legacy boxes but it's nice to see in /proc/iomem. -- cgit v1.2.3 From b204a4d2d4f2061659bb5c33f5a4013fb0f6ffbe Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Fri, 31 May 2013 22:24:58 +0000 Subject: parisc/PCI: lba: fix: convert to pci_create_root_bus() for correct root bus resources (v2) commit dc7dce280a Author: Bjorn Helgaas Date: Fri Oct 28 16:27:27 2011 -0600 parisc/PCI: lba: convert to pci_create_root_bus() for correct root bus resources Supply root bus resources to pci_create_root_bus() so they're correct immediately. This fixes the problem of "early" and "header" quirks seeing incorrect root bus resources. added tests for elmmio_space.start while it should use elmmio_space.flags. This for example led to incorrect resource assignments and a non-working stifb framebuffer on most parisc machines. LBA 10:1: PCI host bridge to bus 0000:01 pci_bus 0000:01: root bus resource [io 0x12000-0x13fff] (bus address [0x2000-0x3fff]) pci_bus 0000:01: root bus resource [mem 0xfffffffffa000000-0xfffffffffbffffff] (bus address [0xfa000000-0xfbffffff]) pci_bus 0000:01: root bus resource [mem 0xfffffffff4800000-0xfffffffff4ffffff] (bus address [0xf4800000-0xf4ffffff]) pci_bus 0000:01: root bus resource [??? 0x00000001 flags 0x0] Signed-off-by: Helge Deller Acked-by: Bjorn Helgaas --- drivers/parisc/lba_pci.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/parisc/lba_pci.c b/drivers/parisc/lba_pci.c index 5d25038ef4b0..1f05913ae677 100644 --- a/drivers/parisc/lba_pci.c +++ b/drivers/parisc/lba_pci.c @@ -668,7 +668,7 @@ lba_fixup_bus(struct pci_bus *bus) BUG(); } - if (ldev->hba.elmmio_space.start) { + if (ldev->hba.elmmio_space.flags) { err = request_resource(&iomem_resource, &(ldev->hba.elmmio_space)); if (err < 0) { @@ -993,7 +993,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev) case PAT_LMMIO: /* used to fix up pre-initialized MEM BARs */ - if (!lba_dev->hba.lmmio_space.start) { + if (!lba_dev->hba.lmmio_space.flags) { sprintf(lba_dev->hba.lmmio_name, "PCI%02x LMMIO", (int)lba_dev->hba.bus_num.start); @@ -1001,7 +1001,7 @@ lba_pat_resources(struct parisc_device *pa_dev, struct lba_device *lba_dev) io->start; r = &lba_dev->hba.lmmio_space; r->name = lba_dev->hba.lmmio_name; - } else if (!lba_dev->hba.elmmio_space.start) { + } else if (!lba_dev->hba.elmmio_space.flags) { sprintf(lba_dev->hba.elmmio_name, "PCI%02x ELMMIO", (int)lba_dev->hba.bus_num.start); @@ -1495,7 +1495,7 @@ lba_driver_probe(struct parisc_device *dev) pci_add_resource_offset(&resources, &lba_dev->hba.io_space, HBA_PORT_BASE(lba_dev->hba.hba_num)); - if (lba_dev->hba.elmmio_space.start) + if (lba_dev->hba.elmmio_space.flags) pci_add_resource_offset(&resources, &lba_dev->hba.elmmio_space, lba_dev->hba.lmmio_space_offset); if (lba_dev->hba.lmmio_space.flags) -- cgit v1.2.3 From c218c713c56b01d4a1cd69390f675cc44857f5fd Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Thu, 30 May 2013 16:24:46 +0000 Subject: parport_pc: disable PARPORT_PC_SUPERIO on parisc architecture If enabled, CONFIG_PARPORT_PC_SUPERIO scans on PC-like hardware for various super-io chips by accessing i/o ports in a range which will crash any parisc hardware at once. In addition, parisc has it's own incompatible superio chip (CONFIG_SUPERIO), so if we disable PARPORT_PC_SUPERIO completely for parisc we can avoid that people by accident enable the parport_pc superio option too. Signed-off-by: Helge Deller --- drivers/parport/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig index 24e12d4d1769..a50576081b34 100644 --- a/drivers/parport/Kconfig +++ b/drivers/parport/Kconfig @@ -71,7 +71,7 @@ config PARPORT_PC_FIFO config PARPORT_PC_SUPERIO bool "SuperIO chipset support" - depends on PARPORT_PC + depends on PARPORT_PC && !PARISC help Saying Y here enables some probes for Super-IO chipsets in order to find out things like base addresses, IRQ lines and DMA channels. It -- cgit v1.2.3 From 4edb38695d9a3cd62739f8595e21f36f0aabf4c2 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Thu, 30 May 2013 21:06:39 +0000 Subject: parisc: parport0: fix this legacy no-device port driver! Fix the above kernel error from parport_announce_port() on 32bit GSC machines (e.g. B160L). The parport driver requires now a pointer to the device struct. Signed-off-by: Helge Deller --- drivers/parport/parport_gsc.c | 6 +++--- drivers/parport/parport_gsc.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/parport/parport_gsc.c b/drivers/parport/parport_gsc.c index a5251cb5fb0c..6e3a60c78873 100644 --- a/drivers/parport/parport_gsc.c +++ b/drivers/parport/parport_gsc.c @@ -234,7 +234,7 @@ static int parport_PS2_supported(struct parport *pb) struct parport *parport_gsc_probe_port(unsigned long base, unsigned long base_hi, int irq, - int dma, struct pci_dev *dev) + int dma, struct parisc_device *padev) { struct parport_gsc_private *priv; struct parport_operations *ops; @@ -258,7 +258,6 @@ struct parport *parport_gsc_probe_port(unsigned long base, priv->ctr_writable = 0xff; priv->dma_buf = 0; priv->dma_handle = 0; - priv->dev = dev; p->base = base; p->base_hi = base_hi; p->irq = irq; @@ -282,6 +281,7 @@ struct parport *parport_gsc_probe_port(unsigned long base, return NULL; } + p->dev = &padev->dev; p->base_hi = base_hi; p->modes = tmp.modes; p->size = (p->modes & PARPORT_MODE_EPP)?8:3; @@ -373,7 +373,7 @@ static int parport_init_chip(struct parisc_device *dev) } p = parport_gsc_probe_port(port, 0, dev->irq, - /* PARPORT_IRQ_NONE */ PARPORT_DMA_NONE, NULL); + /* PARPORT_IRQ_NONE */ PARPORT_DMA_NONE, dev); if (p) parport_count++; dev_set_drvdata(&dev->dev, p); diff --git a/drivers/parport/parport_gsc.h b/drivers/parport/parport_gsc.h index fc9c37c54022..812214768d27 100644 --- a/drivers/parport/parport_gsc.h +++ b/drivers/parport/parport_gsc.h @@ -217,6 +217,6 @@ extern void parport_gsc_dec_use_count(void); extern struct parport *parport_gsc_probe_port(unsigned long base, unsigned long base_hi, int irq, int dma, - struct pci_dev *dev); + struct parisc_device *padev); #endif /* __DRIVERS_PARPORT_PARPORT_GSC_H */ -- cgit v1.2.3 From af1d486c18bad7820b0ca52b413458914231102c Mon Sep 17 00:00:00 2001 From: "lan,Tianyu" Date: Tue, 28 May 2013 02:25:33 +0000 Subject: x86 / platform / hp_wmi: Fix bluetooth_rfkill misuse in hp_wmi_rfkill_setup() HP wmi platform driver fails to initialize GPS and causes poweroff failure in HP Elitebook 6930p. Call Trace: [] hp_wmi_bios_setup+0x25a/0x3a0 [hp_wmi] [] platform_drv_probe+0x3c/0x70 [] ? driver_sysfs_add+0x7a/0xb0 [] driver_probe_device+0x87/0x3a0 [] __driver_attach+0x93/0xa0 [] ? __device_attach+0x40/0x40 [] bus_for_each_dev+0x63/0xa0 [] driver_attach+0x1e/0x20 [] bus_add_driver+0x1f8/0x2b0 [] driver_register+0x71/0x150 [] platform_driver_register+0x46/0x50 [] platform_driver_probe+0x1b/0xa0 [] hp_wmi_init+0x1be/0x1fb [hp_wmi] [] ? hp_wmi_bios_setup+0x3a0/0x3a0 [hp_wmi] [] do_one_initcall+0x10a/0x160 [] load_module+0x1b46/0x2640 [] ? ddebug_proc_write+0xf0/0xf0 [] sys_init_module+0xa2/0xf0 [] system_call_fastpath+0x1a/0x1f Code: 48 ff ff ff 80 7b 24 00 74 d2 41 83 e5 01 45 38 ec 74 c9 48 8d bb a0 03 00 00 e8 ed fb aa e0 5b 41 5c 41 5d 44 89 f0 41 5e 5d c3 <0f> 0b 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 RIP [] rfkill_set_hw_state+0x9f/0xb0 [rfkill] RSP Check code and find this error is caused by misusing variable bluetooth_rfkill where gps_rfkill should be. Reported-and-tested-by: Iru Cai References: https://bugzilla.kernel.org/show_bug.cgi?id=58401 Cc: All Signed-off-by: Lan Tianyu Signed-off-by: Rafael J. Wysocki --- drivers/platform/x86/hp-wmi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 8df0c5a21be2..d111c8687f9b 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -703,7 +703,7 @@ static int hp_wmi_rfkill_setup(struct platform_device *device) } rfkill_init_sw_state(gps_rfkill, hp_wmi_get_sw_state(HPWMI_GPS)); - rfkill_set_hw_state(bluetooth_rfkill, + rfkill_set_hw_state(gps_rfkill, hp_wmi_get_hw_state(HPWMI_GPS)); err = rfkill_register(gps_rfkill); if (err) -- cgit v1.2.3 From fedbe9bc6fd3e14b1ffbb3dac407777ac4a3650c Mon Sep 17 00:00:00 2001 From: Alex Hung Date: Tue, 28 May 2013 02:05:09 +0000 Subject: ACPI / video: ignore BIOS initial backlight value for HP m4 On HP m4 lapops, BIOS reports minimum backlight on boot and causes backlight to dim completely. This ignores the initial backlight values and set to max brightness. References: https://bugs.launchpad.net/bugs/1184501 Cc: All Signed-off-by: Alex Hung Signed-off-by: Rafael J. Wysocki --- drivers/acpi/video.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 5b32e15a65ce..d0937ab3fb6d 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -464,6 +464,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"), }, }, + { + .callback = video_ignore_initial_backlight, + .ident = "HP Pavilion m4", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"), + }, + }, {} }; -- cgit v1.2.3 From 780a6ec640a3fed671fc2c40e4dd30c03eca3ac3 Mon Sep 17 00:00:00 2001 From: Ash Willis Date: Wed, 29 May 2013 01:27:59 +0000 Subject: ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6 This patch addresses kernel bug 56661. BIOS reports an incorrect backlight value, causing the driver to switch off the backlight completely during startup. This patch ignores the incorrect value from BIOS. References: https://bugzilla.kernel.org/show_bug.cgi?id=56661 Signed-off-by: Ash Willis Cc: All Signed-off-by: Rafael J. Wysocki --- drivers/acpi/video.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index d0937ab3fb6d..5d7075d25700 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -456,6 +456,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"), }, }, + { + .callback = video_ignore_initial_backlight, + .ident = "HP Pavilion g6 Notebook PC", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"), + }, + }, { .callback = video_ignore_initial_backlight, .ident = "HP 1000 Notebook PC", -- cgit v1.2.3 From 52a2a1087b5924de00484f35ef5e2a73f61dbd22 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Sat, 1 Jun 2013 02:38:35 +0400 Subject: sata_rcar: fix interrupt handling The driver's interrupt handling code is too picky in deciding whether it should handle an interrupt or not which causes completely unneeded spurious interrupts. Thus make sata_rcar_{ata|serr}_interrupt() *void*; add ATA status register read to sata_rcar_ata_interrupt() to clear an unexpected ATA interrupt -- it doesn't get cleared by writing to the SATAINTSTAT register in the interrupt mode we use. Also, in sata_rcar_ata_interrupt() we should check SATAINTSTAT register only for enabled interrupts and we should clear only those interrupts that we have read as active first time around, because else we have a race and risk clearing an interrupt that can occur between read and write of the SATAINTSTAT register and never registering it... Signed-off-by: Sergei Shtylyov Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- drivers/ata/sata_rcar.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index a8e091aafdde..249c8a289bfd 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -619,17 +619,16 @@ static struct ata_port_operations sata_rcar_port_ops = { .bmdma_status = sata_rcar_bmdma_status, }; -static int sata_rcar_serr_interrupt(struct ata_port *ap) +static void sata_rcar_serr_interrupt(struct ata_port *ap) { struct sata_rcar_priv *priv = ap->host->private_data; struct ata_eh_info *ehi = &ap->link.eh_info; int freeze = 0; - int handled = 0; u32 serror; serror = ioread32(priv->base + SCRSERR_REG); if (!serror) - return 0; + return; DPRINTK("SError @host_intr: 0x%x\n", serror); @@ -642,7 +641,6 @@ static int sata_rcar_serr_interrupt(struct ata_port *ap) ata_ehi_push_desc(ehi, "%s", "hotplug"); freeze = serror & SERR_COMM_WAKE ? 0 : 1; - handled = 1; } /* freeze or abort */ @@ -650,11 +648,9 @@ static int sata_rcar_serr_interrupt(struct ata_port *ap) ata_port_freeze(ap); else ata_port_abort(ap); - - return handled; } -static int sata_rcar_ata_interrupt(struct ata_port *ap) +static void sata_rcar_ata_interrupt(struct ata_port *ap) { struct ata_queued_cmd *qc; int handled = 0; @@ -663,7 +659,9 @@ static int sata_rcar_ata_interrupt(struct ata_port *ap) if (qc) handled |= ata_bmdma_port_intr(ap, qc); - return handled; + /* be sure to clear ATA interrupt */ + if (!handled) + sata_rcar_check_status(ap); } static irqreturn_t sata_rcar_interrupt(int irq, void *dev_instance) @@ -678,20 +676,21 @@ static irqreturn_t sata_rcar_interrupt(int irq, void *dev_instance) spin_lock_irqsave(&host->lock, flags); sataintstat = ioread32(priv->base + SATAINTSTAT_REG); + sataintstat &= SATA_RCAR_INT_MASK; if (!sataintstat) goto done; /* ack */ - iowrite32(sataintstat & ~SATA_RCAR_INT_MASK, - priv->base + SATAINTSTAT_REG); + iowrite32(~sataintstat & 0x7ff, priv->base + SATAINTSTAT_REG); ap = host->ports[0]; if (sataintstat & SATAINTSTAT_ATA) - handled |= sata_rcar_ata_interrupt(ap); + sata_rcar_ata_interrupt(ap); if (sataintstat & SATAINTSTAT_SERR) - handled |= sata_rcar_serr_interrupt(ap); + sata_rcar_serr_interrupt(ap); + handled = 1; done: spin_unlock_irqrestore(&host->lock, flags); -- cgit v1.2.3 From b7ea85a4fed37835eec78a7be3039c8dc22b8178 Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Tue, 21 May 2013 06:23:43 +0000 Subject: drm: fix a use-after-free when GPU acceleration disabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When GPU acceleration is disabled, drm_vblank_cleanup() will free the vblank-related data, such as vblank_refcount, vblank_inmodeset, etc. But we found that drm_vblank_post_modeset() may be called after the cleanup, which use vblank_refcount and vblank_inmodeset. And this will cause a kernel panic. Fix this by return immediately if dev->num_crtcs is zero. This is the same thing that drm_vblank_pre_modeset() does. Call trace of a drm_vblank_post_modeset() after drm_vblank_cleanup(): [ 62.628906] [] drm_vblank_post_modeset+0x34/0xb4 [ 62.628906] [] atombios_crtc_dpms+0xb4/0x174 [ 62.628906] [] atombios_crtc_commit+0x18/0x38 [ 62.628906] [] drm_crtc_helper_set_mode+0x304/0x3cc [ 62.628906] [] drm_crtc_helper_set_config+0x6d8/0x988 [ 62.628906] [] drm_fb_helper_set_par+0x94/0x104 [ 62.628906] [] fbcon_init+0x424/0x57c [ 62.628906] [] visual_init+0xb8/0x118 [ 62.628906] [] take_over_console+0x238/0x384 [ 62.628906] [] fbcon_takeover+0x7c/0xdc [ 62.628906] [] notifier_call_chain+0x44/0x94 [ 62.628906] [] __blocking_notifier_call_chain+0x48/0x68 [ 62.628906] [] register_framebuffer+0x228/0x260 [ 62.628906] [] drm_fb_helper_single_fb_probe+0x260/0x314 [ 62.628906] [] drm_fb_helper_initial_config+0x200/0x234 [ 62.628906] [] radeon_fbdev_init+0xd4/0xf4 [ 62.628906] [] radeon_modeset_init+0x9bc/0xa18 [ 62.628906] [] radeon_driver_load_kms+0xdc/0x12c [ 62.628906] [] drm_get_pci_dev+0x148/0x238 [ 62.628906] [] local_pci_probe+0x5c/0xd0 [ 62.628906] [] work_for_cpu_fn+0x1c/0x30 [ 62.628906] [] process_one_work+0x274/0x3bc [ 62.628906] [] process_scheduled_works+0x24/0x44 [ 62.628906] [] worker_thread+0x31c/0x3f4 [ 62.628906] [] kthread+0x88/0x90 [ 62.628906] [] kernel_thread_helper+0x10/0x18 Signed-off-by: Huacai Chen Signed-off-by: Binbin Zhou Cc: Reviewed-by: Michel Dänzer Acked-by: Paul Menzel Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_irq.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index a6a8643a6a77..8bcce7866d36 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -1054,7 +1054,7 @@ EXPORT_SYMBOL(drm_vblank_off); */ void drm_vblank_pre_modeset(struct drm_device *dev, int crtc) { - /* vblank is not initialized (IRQ not installed ?) */ + /* vblank is not initialized (IRQ not installed ?), or has been freed */ if (!dev->num_crtcs) return; /* @@ -1076,6 +1076,10 @@ void drm_vblank_post_modeset(struct drm_device *dev, int crtc) { unsigned long irqflags; + /* vblank is not initialized (IRQ not installed ?), or has been freed */ + if (!dev->num_crtcs) + return; + if (dev->vblank_inmodeset[crtc]) { spin_lock_irqsave(&dev->vbl_lock, irqflags); dev->vblank_disable_allowed = 1; -- cgit v1.2.3 From 1ed7fad6dbb211142cb61169d8d0bbbb049d4de1 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 31 May 2013 22:22:47 +0000 Subject: drm/tilcd: select BACKLIGHT_LCD_SUPPORT The dependecies for BACKLIGHT_CLASS_DEVICE are defined a bit strange, but it seems one has to always select both BACKLIGHT_CLASS_DEVICE and BACKLIGHT_LCD_SUPPORT to avoid this error: drivers/gpu/drm/tilcdc/tilcdc_panel.c:396: undefined reference to `of_find_backlight_by_node' Cc: Rob Clark Cc: dri-devel@lists.freedesktop.org Cc: Dave Airlie Signed-off-by: Arnd Bergmann Signed-off-by: Dave Airlie --- drivers/gpu/drm/tilcdc/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/tilcdc/Kconfig b/drivers/gpu/drm/tilcdc/Kconfig index e461e9972455..7a4d10106906 100644 --- a/drivers/gpu/drm/tilcdc/Kconfig +++ b/drivers/gpu/drm/tilcdc/Kconfig @@ -6,6 +6,7 @@ config DRM_TILCDC select DRM_GEM_CMA_HELPER select VIDEOMODE_HELPERS select BACKLIGHT_CLASS_DEVICE + select BACKLIGHT_LCD_SUPPORT help Choose this option if you have an TI SoC with LCDC display controller, for example AM33xx in beagle-bone, DA8xx, or -- cgit v1.2.3 From b06f6a9d06f4b0fa38bd3e32714106d824470813 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 31 May 2013 22:22:40 +0000 Subject: drm/nouveau: use mdelay instead of large udelay constants ARM cannot handle udelay for more than 2 miliseconds, so we should use mdelay instead for those. Signed-off-by: Arnd Bergmann Cc: David Airlie Cc: Ben Skeggs Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c index d0817d94454c..ed7415e5e220 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c @@ -51,7 +51,8 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval) const u32 doff = (or * 0x800); int load = -EINVAL; nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval); - udelay(9500); + mdelay(9); + udelay(500); nv_wr32(priv, 0x61a00c + doff, 0x80000000); load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27; nv_wr32(priv, 0x61a00c + doff, 0x00000000); -- cgit v1.2.3 From 91f8f105f2b82b4a38dee2d74760bc39d40ec42c Mon Sep 17 00:00:00 2001 From: Christopher Harvey Date: Fri, 31 May 2013 20:33:07 +0000 Subject: drm/mgag200: Add missing write to index before accessing data register This is a bug fix for some versions of g200se cards while doing mode-setting. Signed-off-by: Christopher Harvey Tested-by: Julia Lemire Acked-by: Julia Lemire Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/mgag200/mgag200_mode.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c index 77b8a45fb10a..ee66badc8bb6 100644 --- a/drivers/gpu/drm/mgag200/mgag200_mode.c +++ b/drivers/gpu/drm/mgag200/mgag200_mode.c @@ -1034,13 +1034,14 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc, else hi_pri_lvl = 5; - WREG8(0x1fde, 0x06); - WREG8(0x1fdf, hi_pri_lvl); + WREG8(MGAREG_CRTCEXT_INDEX, 0x06); + WREG8(MGAREG_CRTCEXT_DATA, hi_pri_lvl); } else { + WREG8(MGAREG_CRTCEXT_INDEX, 0x06); if (mdev->reg_1e24 >= 0x01) - WREG8(0x1fdf, 0x03); + WREG8(MGAREG_CRTCEXT_DATA, 0x03); else - WREG8(0x1fdf, 0x04); + WREG8(MGAREG_CRTCEXT_DATA, 0x04); } } return 0; -- cgit v1.2.3 From a90f13b24fb40d02d11496cce6a10ae8d4b319b2 Mon Sep 17 00:00:00 2001 From: Jonas Peterson Date: Tue, 7 May 2013 22:05:23 +0200 Subject: net: can: kvaser_usb: fix reception on "USBcan Pro" and "USBcan R" type hardware. Unlike Kvaser Leaf light devices, some other Kvaser devices (like USBcan Pro, USBcan R) receive CAN messages in CMD_LOG_MESSAGE frames. This patch adds support for it. Cc: linux-stable # >= v3.8 Signed-off-by: Jonas Peterson Signed-off-by: Olivier Sobrie Signed-off-by: Marc Kleine-Budde --- drivers/net/can/usb/kvaser_usb.c | 64 +++++++++++++++++++++++++++------------- 1 file changed, 43 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 45cb9f3c1324..3b9546588240 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -136,6 +136,9 @@ #define KVASER_CTRL_MODE_SELFRECEPTION 3 #define KVASER_CTRL_MODE_OFF 4 +/* log message */ +#define KVASER_EXTENDED_FRAME BIT(31) + struct kvaser_msg_simple { u8 tid; u8 channel; @@ -817,8 +820,13 @@ static void kvaser_usb_rx_can_msg(const struct kvaser_usb *dev, priv = dev->nets[channel]; stats = &priv->netdev->stats; - if (msg->u.rx_can.flag & (MSG_FLAG_ERROR_FRAME | MSG_FLAG_NERR | - MSG_FLAG_OVERRUN)) { + if ((msg->u.rx_can.flag & MSG_FLAG_ERROR_FRAME) && + (msg->id == CMD_LOG_MESSAGE)) { + kvaser_usb_rx_error(dev, msg); + return; + } else if (msg->u.rx_can.flag & (MSG_FLAG_ERROR_FRAME | + MSG_FLAG_NERR | + MSG_FLAG_OVERRUN)) { kvaser_usb_rx_can_err(priv, msg); return; } else if (msg->u.rx_can.flag & ~MSG_FLAG_REMOTE_FRAME) { @@ -834,22 +842,40 @@ static void kvaser_usb_rx_can_msg(const struct kvaser_usb *dev, return; } - cf->can_id = ((msg->u.rx_can.msg[0] & 0x1f) << 6) | - (msg->u.rx_can.msg[1] & 0x3f); - cf->can_dlc = get_can_dlc(msg->u.rx_can.msg[5]); + if (msg->id == CMD_LOG_MESSAGE) { + cf->can_id = le32_to_cpu(msg->u.log_message.id); + if (cf->can_id & KVASER_EXTENDED_FRAME) + cf->can_id &= CAN_EFF_MASK | CAN_EFF_FLAG; + else + cf->can_id &= CAN_SFF_MASK; - if (msg->id == CMD_RX_EXT_MESSAGE) { - cf->can_id <<= 18; - cf->can_id |= ((msg->u.rx_can.msg[2] & 0x0f) << 14) | - ((msg->u.rx_can.msg[3] & 0xff) << 6) | - (msg->u.rx_can.msg[4] & 0x3f); - cf->can_id |= CAN_EFF_FLAG; - } + cf->can_dlc = get_can_dlc(msg->u.log_message.dlc); - if (msg->u.rx_can.flag & MSG_FLAG_REMOTE_FRAME) - cf->can_id |= CAN_RTR_FLAG; - else - memcpy(cf->data, &msg->u.rx_can.msg[6], cf->can_dlc); + if (msg->u.log_message.flags & MSG_FLAG_REMOTE_FRAME) + cf->can_id |= CAN_RTR_FLAG; + else + memcpy(cf->data, &msg->u.log_message.data, + cf->can_dlc); + } else { + cf->can_id = ((msg->u.rx_can.msg[0] & 0x1f) << 6) | + (msg->u.rx_can.msg[1] & 0x3f); + + if (msg->id == CMD_RX_EXT_MESSAGE) { + cf->can_id <<= 18; + cf->can_id |= ((msg->u.rx_can.msg[2] & 0x0f) << 14) | + ((msg->u.rx_can.msg[3] & 0xff) << 6) | + (msg->u.rx_can.msg[4] & 0x3f); + cf->can_id |= CAN_EFF_FLAG; + } + + cf->can_dlc = get_can_dlc(msg->u.rx_can.msg[5]); + + if (msg->u.rx_can.flag & MSG_FLAG_REMOTE_FRAME) + cf->can_id |= CAN_RTR_FLAG; + else + memcpy(cf->data, &msg->u.rx_can.msg[6], + cf->can_dlc); + } netif_rx(skb); @@ -911,6 +937,7 @@ static void kvaser_usb_handle_message(const struct kvaser_usb *dev, case CMD_RX_STD_MESSAGE: case CMD_RX_EXT_MESSAGE: + case CMD_LOG_MESSAGE: kvaser_usb_rx_can_msg(dev, msg); break; @@ -919,11 +946,6 @@ static void kvaser_usb_handle_message(const struct kvaser_usb *dev, kvaser_usb_rx_error(dev, msg); break; - case CMD_LOG_MESSAGE: - if (msg->u.log_message.flags & MSG_FLAG_ERROR_FRAME) - kvaser_usb_rx_error(dev, msg); - break; - case CMD_TX_ACKNOWLEDGE: kvaser_usb_tx_acknowledge(dev, msg); break; -- cgit v1.2.3 From fae37f81fdf3680c5d70abdc57e7b83f4b6c266a Mon Sep 17 00:00:00 2001 From: Olivier Sobrie Date: Fri, 18 Jan 2013 09:14:04 +0100 Subject: net: can: esd_usb2: Do not do dma on the stack smatch reports the following warnings: drivers/net/can/usb/esd_usb2.c:640 esd_usb2_start() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:846 esd_usb2_close() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:855 esd_usb2_close() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:923 esd_usb2_set_bittiming() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:1047 esd_usb2_probe() error: doing dma on the stack (&msg) drivers/net/can/usb/esd_usb2.c:1053 esd_usb2_probe() error: doing dma on the stack (&msg) See "Documentation/DMA-API-HOWTO.txt" section "What memory is DMA'able?" Signed-off-by: Olivier Sobrie Cc: Matthias Fuchs Signed-off-by: Marc Kleine-Budde --- drivers/net/can/usb/esd_usb2.c | 127 ++++++++++++++++++++++++----------------- 1 file changed, 76 insertions(+), 51 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c index 9b74d1e3ad44..6aa7b3266c80 100644 --- a/drivers/net/can/usb/esd_usb2.c +++ b/drivers/net/can/usb/esd_usb2.c @@ -612,9 +612,15 @@ static int esd_usb2_start(struct esd_usb2_net_priv *priv) { struct esd_usb2 *dev = priv->usb2; struct net_device *netdev = priv->netdev; - struct esd_usb2_msg msg; + struct esd_usb2_msg *msg; int err, i; + msg = kmalloc(sizeof(*msg), GFP_KERNEL); + if (!msg) { + err = -ENOMEM; + goto out; + } + /* * Enable all IDs * The IDADD message takes up to 64 32 bit bitmasks (2048 bits). @@ -628,33 +634,32 @@ static int esd_usb2_start(struct esd_usb2_net_priv *priv) * the number of the starting bitmask (0..64) to the filter.option * field followed by only some bitmasks. */ - msg.msg.hdr.cmd = CMD_IDADD; - msg.msg.hdr.len = 2 + ESD_MAX_ID_SEGMENT; - msg.msg.filter.net = priv->index; - msg.msg.filter.option = ESD_ID_ENABLE; /* start with segment 0 */ + msg->msg.hdr.cmd = CMD_IDADD; + msg->msg.hdr.len = 2 + ESD_MAX_ID_SEGMENT; + msg->msg.filter.net = priv->index; + msg->msg.filter.option = ESD_ID_ENABLE; /* start with segment 0 */ for (i = 0; i < ESD_MAX_ID_SEGMENT; i++) - msg.msg.filter.mask[i] = cpu_to_le32(0xffffffff); + msg->msg.filter.mask[i] = cpu_to_le32(0xffffffff); /* enable 29bit extended IDs */ - msg.msg.filter.mask[ESD_MAX_ID_SEGMENT] = cpu_to_le32(0x00000001); + msg->msg.filter.mask[ESD_MAX_ID_SEGMENT] = cpu_to_le32(0x00000001); - err = esd_usb2_send_msg(dev, &msg); + err = esd_usb2_send_msg(dev, msg); if (err) - goto failed; + goto out; err = esd_usb2_setup_rx_urbs(dev); if (err) - goto failed; + goto out; priv->can.state = CAN_STATE_ERROR_ACTIVE; - return 0; - -failed: +out: if (err == -ENODEV) netif_device_detach(netdev); + if (err) + netdev_err(netdev, "couldn't start device: %d\n", err); - netdev_err(netdev, "couldn't start device: %d\n", err); - + kfree(msg); return err; } @@ -833,26 +838,30 @@ nourbmem: static int esd_usb2_close(struct net_device *netdev) { struct esd_usb2_net_priv *priv = netdev_priv(netdev); - struct esd_usb2_msg msg; + struct esd_usb2_msg *msg; int i; + msg = kmalloc(sizeof(*msg), GFP_KERNEL); + if (!msg) + return -ENOMEM; + /* Disable all IDs (see esd_usb2_start()) */ - msg.msg.hdr.cmd = CMD_IDADD; - msg.msg.hdr.len = 2 + ESD_MAX_ID_SEGMENT; - msg.msg.filter.net = priv->index; - msg.msg.filter.option = ESD_ID_ENABLE; /* start with segment 0 */ + msg->msg.hdr.cmd = CMD_IDADD; + msg->msg.hdr.len = 2 + ESD_MAX_ID_SEGMENT; + msg->msg.filter.net = priv->index; + msg->msg.filter.option = ESD_ID_ENABLE; /* start with segment 0 */ for (i = 0; i <= ESD_MAX_ID_SEGMENT; i++) - msg.msg.filter.mask[i] = 0; - if (esd_usb2_send_msg(priv->usb2, &msg) < 0) + msg->msg.filter.mask[i] = 0; + if (esd_usb2_send_msg(priv->usb2, msg) < 0) netdev_err(netdev, "sending idadd message failed\n"); /* set CAN controller to reset mode */ - msg.msg.hdr.len = 2; - msg.msg.hdr.cmd = CMD_SETBAUD; - msg.msg.setbaud.net = priv->index; - msg.msg.setbaud.rsvd = 0; - msg.msg.setbaud.baud = cpu_to_le32(ESD_USB2_NO_BAUDRATE); - if (esd_usb2_send_msg(priv->usb2, &msg) < 0) + msg->msg.hdr.len = 2; + msg->msg.hdr.cmd = CMD_SETBAUD; + msg->msg.setbaud.net = priv->index; + msg->msg.setbaud.rsvd = 0; + msg->msg.setbaud.baud = cpu_to_le32(ESD_USB2_NO_BAUDRATE); + if (esd_usb2_send_msg(priv->usb2, msg) < 0) netdev_err(netdev, "sending setbaud message failed\n"); priv->can.state = CAN_STATE_STOPPED; @@ -861,6 +870,8 @@ static int esd_usb2_close(struct net_device *netdev) close_candev(netdev); + kfree(msg); + return 0; } @@ -886,7 +897,8 @@ static int esd_usb2_set_bittiming(struct net_device *netdev) { struct esd_usb2_net_priv *priv = netdev_priv(netdev); struct can_bittiming *bt = &priv->can.bittiming; - struct esd_usb2_msg msg; + struct esd_usb2_msg *msg; + int err; u32 canbtr; int sjw_shift; @@ -912,15 +924,22 @@ static int esd_usb2_set_bittiming(struct net_device *netdev) if (priv->can.ctrlmode & CAN_CTRLMODE_3_SAMPLES) canbtr |= ESD_USB2_3_SAMPLES; - msg.msg.hdr.len = 2; - msg.msg.hdr.cmd = CMD_SETBAUD; - msg.msg.setbaud.net = priv->index; - msg.msg.setbaud.rsvd = 0; - msg.msg.setbaud.baud = cpu_to_le32(canbtr); + msg = kmalloc(sizeof(*msg), GFP_KERNEL); + if (!msg) + return -ENOMEM; + + msg->msg.hdr.len = 2; + msg->msg.hdr.cmd = CMD_SETBAUD; + msg->msg.setbaud.net = priv->index; + msg->msg.setbaud.rsvd = 0; + msg->msg.setbaud.baud = cpu_to_le32(canbtr); netdev_info(netdev, "setting BTR=%#x\n", canbtr); - return esd_usb2_send_msg(priv->usb2, &msg); + err = esd_usb2_send_msg(priv->usb2, msg); + + kfree(msg); + return err; } static int esd_usb2_get_berr_counter(const struct net_device *netdev, @@ -1022,7 +1041,7 @@ static int esd_usb2_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct esd_usb2 *dev; - struct esd_usb2_msg msg; + struct esd_usb2_msg *msg; int i, err; dev = kzalloc(sizeof(*dev), GFP_KERNEL); @@ -1037,27 +1056,33 @@ static int esd_usb2_probe(struct usb_interface *intf, usb_set_intfdata(intf, dev); + msg = kmalloc(sizeof(*msg), GFP_KERNEL); + if (!msg) { + err = -ENOMEM; + goto free_msg; + } + /* query number of CAN interfaces (nets) */ - msg.msg.hdr.cmd = CMD_VERSION; - msg.msg.hdr.len = 2; - msg.msg.version.rsvd = 0; - msg.msg.version.flags = 0; - msg.msg.version.drv_version = 0; + msg->msg.hdr.cmd = CMD_VERSION; + msg->msg.hdr.len = 2; + msg->msg.version.rsvd = 0; + msg->msg.version.flags = 0; + msg->msg.version.drv_version = 0; - err = esd_usb2_send_msg(dev, &msg); + err = esd_usb2_send_msg(dev, msg); if (err < 0) { dev_err(&intf->dev, "sending version message failed\n"); - goto free_dev; + goto free_msg; } - err = esd_usb2_wait_msg(dev, &msg); + err = esd_usb2_wait_msg(dev, msg); if (err < 0) { dev_err(&intf->dev, "no version message answer\n"); - goto free_dev; + goto free_msg; } - dev->net_count = (int)msg.msg.version_reply.nets; - dev->version = le32_to_cpu(msg.msg.version_reply.version); + dev->net_count = (int)msg->msg.version_reply.nets; + dev->version = le32_to_cpu(msg->msg.version_reply.version); if (device_create_file(&intf->dev, &dev_attr_firmware)) dev_err(&intf->dev, @@ -1075,10 +1100,10 @@ static int esd_usb2_probe(struct usb_interface *intf, for (i = 0; i < dev->net_count; i++) esd_usb2_probe_one_net(intf, i); - return 0; - -free_dev: - kfree(dev); +free_msg: + kfree(msg); + if (err) + kfree(dev); done: return err; } -- cgit v1.2.3 From f14e22435a27ef183bbfa78f77ad86644c0b354c Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Thu, 16 May 2013 11:36:40 +0200 Subject: net: can: peak_usb: Do not do dma on the stack smatch reports the following warnings: drivers/net/can/usb/peak_usb/pcan_usb_pro.c:514 pcan_usb_pro_drv_loaded() error: doing dma on the stack (buffer) drivers/net/can/usb/peak_usb/pcan_usb_pro.c:878 pcan_usb_pro_init() error: doing dma on the stack (&fi) drivers/net/can/usb/peak_usb/pcan_usb_pro.c:889 pcan_usb_pro_init() error: doing dma on the stack (&bi) See "Documentation/DMA-API-HOWTO.txt" section "What memory is DMA'able?" Cc: Stephane Grosjean Signed-off-by: Marc Kleine-Budde --- drivers/net/can/usb/peak_usb/pcan_usb_pro.c | 61 +++++++++++++++++++---------- drivers/net/can/usb/peak_usb/pcan_usb_pro.h | 1 + 2 files changed, 41 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index 30d79bfa5b10..8ee9d1556e6e 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -504,15 +504,24 @@ static int pcan_usb_pro_restart_async(struct peak_usb_device *dev, return usb_submit_urb(urb, GFP_ATOMIC); } -static void pcan_usb_pro_drv_loaded(struct peak_usb_device *dev, int loaded) +static int pcan_usb_pro_drv_loaded(struct peak_usb_device *dev, int loaded) { - u8 buffer[16]; + u8 *buffer; + int err; + + buffer = kmalloc(PCAN_USBPRO_FCT_DRVLD_REQ_LEN, GFP_KERNEL); + if (!buffer) + return -ENOMEM; buffer[0] = 0; buffer[1] = !!loaded; - pcan_usb_pro_send_req(dev, PCAN_USBPRO_REQ_FCT, - PCAN_USBPRO_FCT_DRVLD, buffer, sizeof(buffer)); + err = pcan_usb_pro_send_req(dev, PCAN_USBPRO_REQ_FCT, + PCAN_USBPRO_FCT_DRVLD, buffer, + PCAN_USBPRO_FCT_DRVLD_REQ_LEN); + kfree(buffer); + + return err; } static inline @@ -851,21 +860,24 @@ static int pcan_usb_pro_stop(struct peak_usb_device *dev) */ static int pcan_usb_pro_init(struct peak_usb_device *dev) { - struct pcan_usb_pro_interface *usb_if; struct pcan_usb_pro_device *pdev = container_of(dev, struct pcan_usb_pro_device, dev); + struct pcan_usb_pro_interface *usb_if = NULL; + struct pcan_usb_pro_fwinfo *fi = NULL; + struct pcan_usb_pro_blinfo *bi = NULL; + int err; /* do this for 1st channel only */ if (!dev->prev_siblings) { - struct pcan_usb_pro_fwinfo fi; - struct pcan_usb_pro_blinfo bi; - int err; - /* allocate netdevices common structure attached to first one */ usb_if = kzalloc(sizeof(struct pcan_usb_pro_interface), GFP_KERNEL); - if (!usb_if) - return -ENOMEM; + fi = kmalloc(sizeof(struct pcan_usb_pro_fwinfo), GFP_KERNEL); + bi = kmalloc(sizeof(struct pcan_usb_pro_blinfo), GFP_KERNEL); + if (!usb_if || !fi || !bi) { + err = -ENOMEM; + goto err_out; + } /* number of ts msgs to ignore before taking one into account */ usb_if->cm_ignore_count = 5; @@ -877,34 +889,34 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev) */ err = pcan_usb_pro_send_req(dev, PCAN_USBPRO_REQ_INFO, PCAN_USBPRO_INFO_FW, - &fi, sizeof(fi)); + fi, sizeof(*fi)); if (err) { - kfree(usb_if); dev_err(dev->netdev->dev.parent, "unable to read %s firmware info (err %d)\n", pcan_usb_pro.name, err); - return err; + goto err_out; } err = pcan_usb_pro_send_req(dev, PCAN_USBPRO_REQ_INFO, PCAN_USBPRO_INFO_BL, - &bi, sizeof(bi)); + bi, sizeof(*bi)); if (err) { - kfree(usb_if); dev_err(dev->netdev->dev.parent, "unable to read %s bootloader info (err %d)\n", pcan_usb_pro.name, err); - return err; + goto err_out; } + /* tell the device the can driver is running */ + err = pcan_usb_pro_drv_loaded(dev, 1); + if (err) + goto err_out; + dev_info(dev->netdev->dev.parent, "PEAK-System %s hwrev %u serial %08X.%08X (%u channels)\n", pcan_usb_pro.name, - bi.hw_rev, bi.serial_num_hi, bi.serial_num_lo, + bi->hw_rev, bi->serial_num_hi, bi->serial_num_lo, pcan_usb_pro.ctrl_count); - - /* tell the device the can driver is running */ - pcan_usb_pro_drv_loaded(dev, 1); } else { usb_if = pcan_usb_pro_dev_if(dev->prev_siblings); } @@ -916,6 +928,13 @@ static int pcan_usb_pro_init(struct peak_usb_device *dev) pcan_usb_pro_set_led(dev, 0, 1); return 0; + + err_out: + kfree(bi); + kfree(fi); + kfree(usb_if); + + return err; } static void pcan_usb_pro_exit(struct peak_usb_device *dev) diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.h b/drivers/net/can/usb/peak_usb/pcan_usb_pro.h index a869918c5620..32275af547e0 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.h +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.h @@ -29,6 +29,7 @@ /* Vendor Request value for XXX_FCT */ #define PCAN_USBPRO_FCT_DRVLD 5 /* tell device driver is loaded */ +#define PCAN_USBPRO_FCT_DRVLD_REQ_LEN 16 /* PCAN_USBPRO_INFO_BL vendor request record type */ struct __packed pcan_usb_pro_blinfo { -- cgit v1.2.3 From 7abb690a0e095717420ba78dcab4309abbbec78a Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 24 May 2013 21:29:32 +0200 Subject: drm/i915: Fix spurious -EIO/SIGBUS on wedged gpus Chris Wilson noticed that since commit 1f83fee08d625f8d0130f9fe5ef7b17c2e022f3c [v3.9] Author: Daniel Vetter Date: Thu Nov 15 17:17:22 2012 +0100 drm/i915: clear up wedged transitions X can again get -EIO when it does not expect it. And even worse score a SIGBUS when accessing gtt mmaps. The established ABI is that we _only_ return an -EIO from execbuf - all other ioctls should just work. And since the reset code moves all bos out of gpu domains and clears out all the last_seqno/ring tracking there really shouldn't be any reason for non-execbuf code to ever touch the hw and see an -EIO. After some extensive discussions we've noticed that these spurios -EIO are caused by i915_gem_wait_for_error: http://www.mail-archive.com/intel-gfx@lists.freedesktop.org/msg20540.html That is easy to fix by returning 0 instead of -EIO, since grabbing the dev->struct_mutex does not yet mean that we actually want to touch the hw. And so there is no reason at all to fail with -EIO. But that's not the entire since, since often (at least it's easily googleable) dmesg indicates that the reset fails and we declare the gpu wedged. Then, quite a bit later X wakes up with the "Timed out waiting for the gpu reset to complete" DRM_ERROR message in wait_for_errror and brings down the desktop with an -EIO/SIGBUS. So clearly we're missing a wakeup somewhere, since the gpu reset just doesn't take 10 seconds to complete. And indeed we're do handle the terminally wedged state wrong. Fix this all up. References: https://bugs.freedesktop.org/show_bug.cgi?id=63921 References: https://bugs.freedesktop.org/show_bug.cgi?id=64073 Cc: Chris Wilson Cc: Daniel Vetter Cc: Damien Lespiau Cc: stable@vger.kernel.org Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_gem.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index a6cf8e843973..970ad17c99ab 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -91,14 +91,11 @@ i915_gem_wait_for_error(struct i915_gpu_error *error) { int ret; -#define EXIT_COND (!i915_reset_in_progress(error)) +#define EXIT_COND (!i915_reset_in_progress(error) || \ + i915_terminally_wedged(error)) if (EXIT_COND) return 0; - /* GPU is already declared terminally dead, give up. */ - if (i915_terminally_wedged(error)) - return -EIO; - /* * Only wait 10 seconds for the gpu reset to complete to avoid hanging * userspace. If it takes that long something really bad is going on and -- cgit v1.2.3 From d62cf62ad07d5584da1f2132641928ded8216327 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 29 May 2013 10:41:29 +0200 Subject: drm/i915: Quirk the pipe A quirk in the modeset state checker If we always force the pipe A to on we can't use the hw state to decide whether it should be on. Hence quirk the quirk. The problem is that crtc->active tracks the state of the entire display pipe, i.e. including planes, encoders and all. But our hw state readout simply looks at the pipe. But with the pipe A quirk we force-enable that (together with it's pll). To fix that mismatch we have two options: - Quirk the checked state to match what our sw tracking states if the pipe A quirk is in effect. - Improve the hw state readout to not get fooled by the pipe A quirk. Since we already have similar state clamping in e.g. assert_pipe I've opted for the first variant. Also note that we don't really loose any state checking: Individual pieces of the abstract crtc pipe are checked in the enable/disable functions with the various asssert_* checks we have, and the hw state check code doesn't check anything if the pipe is off anyway. v2: Pimp commit message after discussion with Chris and only apply the quirk for the quirk if we're checking pipe A. Otherwise we'll miss state checking for pipe B on i830M ... v3: Make the code comment consistent with the improved commit message, too (Chris). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64764 Cc: stable@vger.kernel.org Cc: Chris Wilson Reported-and-Tested-by: mlsemon35@gmail.com (v1) Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ad1117bebd7e..56746dcac40f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7937,6 +7937,11 @@ intel_modeset_check_state(struct drm_device *dev) memset(&pipe_config, 0, sizeof(pipe_config)); active = dev_priv->display.get_pipe_config(crtc, &pipe_config); + + /* hw state is inconsistent with the pipe A quirk */ + if (crtc->pipe == PIPE_A && dev_priv->quirks & QUIRK_PIPEA_FORCE) + active = crtc->active; + WARN(crtc->active != active, "crtc active state doesn't match with hw state " "(expected %i, found %i)\n", crtc->active, active); -- cgit v1.2.3 From 45a211d75137b1ac869a8a758a6667f15827a115 Mon Sep 17 00:00:00 2001 From: Ben Mesman Date: Tue, 16 Apr 2013 20:00:28 +0200 Subject: drm/i915: no lvds quirk for hp t5740 Last year, a patch was made for the "HP t5740e Thin Client" (see http://lists.freedesktop.org/archives/dri-devel/2012-May/023245.html). This device reports an lvds panel, but does not really have one. The predecessor of this device is the "hp t5740", which also does not have an lvds panel. This patch will add the same quirk for this device. Signed-off-by: Ben Mesman Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_lvds.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index f36f1baabd5a..29412cc89c7a 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -815,10 +815,10 @@ static const struct dmi_system_id intel_no_lvds[] = { }, { .callback = intel_no_lvds_dmi_callback, - .ident = "Hewlett-Packard HP t5740e Thin Client", + .ident = "Hewlett-Packard HP t5740", .matches = { DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP t5740e Thin Client"), + DMI_MATCH(DMI_PRODUCT_NAME, " t5740"), }, }, { -- cgit v1.2.3 From e49f3959a96dc279860af7e86e6dbcfda50580a5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Adis=20Hamzi=C4=87?= Date: Sun, 2 Jun 2013 16:47:54 +0200 Subject: radeon: Fix system hang issue when using KMS with older cards MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The current radeon driver initialization routines, when using KMS, are written so that the IRQ installation routine is called before initializing the WB buffer and the CP rings. With some ASICs, though, the IRQ routine tries to access the GFX_INDEX ring causing a call to RREG32 with the value of -1 in radeon_fence_read. This, in turn causes the system to completely hang with some cards, requiring a hard reset. A call stack that can cause such a hang looks like this (using rv515 ASIC for the example here): * rv515_init (rv515.c) * radeon_irq_kms_init (radeon_irq_kms.c) * drm_irq_install (drm_irq.c) * radeon_driver_irq_preinstall_kms (radeon_irq_kms.c) * rs600_irq_process (rs600.c) * radeon_fence_process - due to SW interrupt (radeon_fence.c) * radeon_fence_read (radeon_fence.c) * hang due to RREG32(-1) The patch moves the IRQ installation to the card startup routine, after the ring has been initialized, but before the IRQ has been set. This fixes the issue, but requires a check to see if the IRQ is already installed, as is the case in the system resume codepath. I have tested the patch on three machines using the rv515, the rv770 and the evergreen ASIC. They worked without issues. This seems to be a known issue and has been reported on several bug tracking sites by various distributions (see links below). Most of reports recommend booting the system with KMS disabled and then enabling KMS by reloading the radeon module. For some reason, this was indeed a usable workaround, however, UMS is now deprecated and disabled by default. Bug reports: https://bugzilla.redhat.com/show_bug.cgi?id=845745 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/561789 https://bbs.archlinux.org/viewtopic.php?id=156964 Signed-off-by: Adis Hamzić Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/evergreen.c | 10 ++++++---- drivers/gpu/drm/radeon/ni.c | 10 ++++++---- drivers/gpu/drm/radeon/r100.c | 9 ++++++--- drivers/gpu/drm/radeon/r300.c | 9 ++++++--- drivers/gpu/drm/radeon/r420.c | 10 ++++++---- drivers/gpu/drm/radeon/r520.c | 9 ++++++--- drivers/gpu/drm/radeon/r600.c | 10 ++++++---- drivers/gpu/drm/radeon/rs400.c | 9 ++++++--- drivers/gpu/drm/radeon/rs600.c | 9 ++++++--- drivers/gpu/drm/radeon/rs690.c | 9 ++++++--- drivers/gpu/drm/radeon/rv515.c | 9 ++++++--- drivers/gpu/drm/radeon/rv770.c | 10 ++++++---- drivers/gpu/drm/radeon/si.c | 10 ++++++---- 13 files changed, 78 insertions(+), 45 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 8546e3b333b4..0f89ce3d02b9 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -4754,6 +4754,12 @@ static int evergreen_startup(struct radeon_device *rdev) rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0; /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r = r600_irq_init(rdev); if (r) { DRM_ERROR("radeon: IH init failed (%d).\n", r); @@ -4923,10 +4929,6 @@ int evergreen_init(struct radeon_device *rdev) if (r) return r; - r = radeon_irq_kms_init(rdev); - if (r) - return r; - rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL; r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024); diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 7969c0c8ec20..84583302b081 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -2025,6 +2025,12 @@ static int cayman_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r = r600_irq_init(rdev); if (r) { DRM_ERROR("radeon: IH init failed (%d).\n", r); @@ -2190,10 +2196,6 @@ int cayman_init(struct radeon_device *rdev) if (r) return r; - r = radeon_irq_kms_init(rdev); - if (r) - return r; - ring->ring_obj = NULL; r600_ring_init(rdev, ring, 1024 * 1024); diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 4973bff37fec..d0314ecbd7c1 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -3869,6 +3869,12 @@ static int r100_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r100_irq_set(rdev); rdev->config.r100.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -4022,9 +4028,6 @@ int r100_init(struct radeon_device *rdev) r100_mc_init(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index c60350e6872d..b9b776f1e582 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -1382,6 +1382,12 @@ static int r300_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r100_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -1514,9 +1520,6 @@ int r300_init(struct radeon_device *rdev) r300_mc_init(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c index 6fce2eb4dd16..4e796ecf9ea4 100644 --- a/drivers/gpu/drm/radeon/r420.c +++ b/drivers/gpu/drm/radeon/r420.c @@ -265,6 +265,12 @@ static int r420_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r100_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -411,10 +417,6 @@ int r420_init(struct radeon_device *rdev) if (r) { return r; } - r = radeon_irq_kms_init(rdev); - if (r) { - return r; - } /* Memory manager */ r = radeon_bo_init(rdev); if (r) { diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c index f795a4e092cb..e1aece73b370 100644 --- a/drivers/gpu/drm/radeon/r520.c +++ b/drivers/gpu/drm/radeon/r520.c @@ -194,6 +194,12 @@ static int r520_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + rs600_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -295,9 +301,6 @@ int r520_init(struct radeon_device *rdev) rv515_debugfs(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index b45e64848677..0f30d0df1e07 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3202,6 +3202,12 @@ static int r600_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r = r600_irq_init(rdev); if (r) { DRM_ERROR("radeon: IH init failed (%d).\n", r); @@ -3356,10 +3362,6 @@ int r600_init(struct radeon_device *rdev) if (r) return r; - r = radeon_irq_kms_init(rdev); - if (r) - return r; - rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL; r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024); diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c index 73051ce3121e..233a9b9fa1f7 100644 --- a/drivers/gpu/drm/radeon/rs400.c +++ b/drivers/gpu/drm/radeon/rs400.c @@ -417,6 +417,12 @@ static int rs400_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r100_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -533,9 +539,6 @@ int rs400_init(struct radeon_device *rdev) rs400_mc_init(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 46fa1b07c560..670b555d2ca2 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -923,6 +923,12 @@ static int rs600_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + rs600_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -1045,9 +1051,6 @@ int rs600_init(struct radeon_device *rdev) rs600_debugfs(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index ab4c86cfd552..55880d5962c3 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -651,6 +651,12 @@ static int rs690_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + rs600_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -774,9 +780,6 @@ int rs690_init(struct radeon_device *rdev) rv515_debugfs(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c index ffcba730c57c..21c7d7b26e55 100644 --- a/drivers/gpu/drm/radeon/rv515.c +++ b/drivers/gpu/drm/radeon/rv515.c @@ -532,6 +532,12 @@ static int rv515_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + rs600_irq_set(rdev); rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); /* 1M ring buffer */ @@ -660,9 +666,6 @@ int rv515_init(struct radeon_device *rdev) rv515_debugfs(rdev); /* Fence driver */ r = radeon_fence_driver_init(rdev); - if (r) - return r; - r = radeon_irq_kms_init(rdev); if (r) return r; /* Memory manager */ diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 08aef24afe40..4a62ad2e5399 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -1887,6 +1887,12 @@ static int rv770_startup(struct radeon_device *rdev) rdev->ring[R600_RING_TYPE_UVD_INDEX].ring_size = 0; /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r = r600_irq_init(rdev); if (r) { DRM_ERROR("radeon: IH init failed (%d).\n", r); @@ -2045,10 +2051,6 @@ int rv770_init(struct radeon_device *rdev) if (r) return r; - r = radeon_irq_kms_init(rdev); - if (r) - return r; - rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL; r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024); diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index d1ba9d88f311..a1b0da6b5808 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -5350,6 +5350,12 @@ static int si_startup(struct radeon_device *rdev) } /* Enable IRQ */ + if (!rdev->irq.installed) { + r = radeon_irq_kms_init(rdev); + if (r) + return r; + } + r = si_irq_init(rdev); if (r) { DRM_ERROR("radeon: IH init failed (%d).\n", r); @@ -5533,10 +5539,6 @@ int si_init(struct radeon_device *rdev) if (r) return r; - r = radeon_irq_kms_init(rdev); - if (r) - return r; - ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]; ring->ring_obj = NULL; r600_ring_init(rdev, ring, 1024 * 1024); -- cgit v1.2.3 From 65337e60a7616a610ef53b7a9f807eb80a827070 Mon Sep 17 00:00:00 2001 From: Samuel Li Date: Fri, 5 Apr 2013 17:50:53 -0400 Subject: drm/radeon: Use direct mapping for fast fb access on RS780/RS880 (v2) v2: fix trailing whitespace Signed-off-by: Samuel Li Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/r600.c | 43 ++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/r600d.h | 8 +++++++ drivers/gpu/drm/radeon/radeon_asic.c | 4 ++++ drivers/gpu/drm/radeon/radeon_asic.h | 2 ++ 4 files changed, 57 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 0f30d0df1e07..0e5341695922 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1046,6 +1046,24 @@ int r600_mc_wait_for_idle(struct radeon_device *rdev) return -1; } +uint32_t rs780_mc_rreg(struct radeon_device *rdev, uint32_t reg) +{ + uint32_t r; + + WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg)); + r = RREG32(R_0028FC_MC_DATA); + WREG32(R_0028F8_MC_INDEX, ~C_0028F8_MC_IND_ADDR); + return r; +} + +void rs780_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) +{ + WREG32(R_0028F8_MC_INDEX, S_0028F8_MC_IND_ADDR(reg) | + S_0028F8_MC_IND_WR_EN(1)); + WREG32(R_0028FC_MC_DATA, v); + WREG32(R_0028F8_MC_INDEX, 0x7F); +} + static void r600_mc_program(struct radeon_device *rdev) { struct rv515_mc_save save; @@ -1181,6 +1199,8 @@ static int r600_mc_init(struct radeon_device *rdev) { u32 tmp; int chansize, numchan; + uint32_t h_addr, l_addr; + unsigned long long k8_addr; /* Get VRAM informations */ rdev->mc.vram_is_ddr = true; @@ -1221,7 +1241,30 @@ static int r600_mc_init(struct radeon_device *rdev) if (rdev->flags & RADEON_IS_IGP) { rs690_pm_info(rdev); rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev); + + if (rdev->family == CHIP_RS780 || rdev->family == CHIP_RS880) { + /* Use K8 direct mapping for fast fb access. */ + rdev->fastfb_working = false; + h_addr = G_000012_K8_ADDR_EXT(RREG32_MC(R_000012_MC_MISC_UMA_CNTL)); + l_addr = RREG32_MC(R_000011_K8_FB_LOCATION); + k8_addr = ((unsigned long long)h_addr) << 32 | l_addr; +#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) + if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL) +#endif + { + /* FastFB shall be used with UMA memory. Here it is simply disabled when sideport + * memory is present. + */ + if (rdev->mc.igp_sideport_enabled == false && radeon_fastfb == 1) { + DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n", + (unsigned long long)rdev->mc.aper_base, k8_addr); + rdev->mc.aper_base = (resource_size_t)k8_addr; + rdev->fastfb_working = true; + } + } + } } + radeon_update_bandwidth_info(rdev); return 0; } diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h index acb146c06973..79df558f8c40 100644 --- a/drivers/gpu/drm/radeon/r600d.h +++ b/drivers/gpu/drm/radeon/r600d.h @@ -1342,6 +1342,14 @@ #define PACKET3_STRMOUT_BASE_UPDATE 0x72 /* r7xx */ #define PACKET3_SURFACE_BASE_UPDATE 0x73 +#define R_000011_K8_FB_LOCATION 0x11 +#define R_000012_MC_MISC_UMA_CNTL 0x12 +#define G_000012_K8_ADDR_EXT(x) (((x) >> 0) & 0xFF) +#define R_0028F8_MC_INDEX 0x28F8 +#define S_0028F8_MC_IND_ADDR(x) (((x) & 0x1FF) << 0) +#define C_0028F8_MC_IND_ADDR 0xFFFFFE00 +#define S_0028F8_MC_IND_WR_EN(x) (((x) & 0x1) << 9) +#define R_0028FC_MC_DATA 0x28FC #define R_008020_GRBM_SOFT_RESET 0x8020 #define S_008020_SOFT_RESET_CP(x) (((x) & 1) << 0) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 06b8c19ab19e..a2802b47ee95 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -122,6 +122,10 @@ static void radeon_register_accessor_init(struct radeon_device *rdev) rdev->mc_rreg = &rs600_mc_rreg; rdev->mc_wreg = &rs600_mc_wreg; } + if (rdev->family == CHIP_RS780 || rdev->family == CHIP_RS880) { + rdev->mc_rreg = &rs780_mc_rreg; + rdev->mc_wreg = &rs780_mc_wreg; + } if (rdev->family >= CHIP_R600) { rdev->pciep_rreg = &r600_pciep_rreg; rdev->pciep_wreg = &r600_pciep_wreg; diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 2c87365d345f..a72759ede753 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -347,6 +347,8 @@ extern bool r600_gui_idle(struct radeon_device *rdev); extern void r600_pm_misc(struct radeon_device *rdev); extern void r600_pm_init_profile(struct radeon_device *rdev); extern void rs780_pm_init_profile(struct radeon_device *rdev); +extern uint32_t rs780_mc_rreg(struct radeon_device *rdev, uint32_t reg); +extern void rs780_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v); extern void r600_pm_get_dynpm_state(struct radeon_device *rdev); extern void r600_set_pcie_lanes(struct radeon_device *rdev, int lanes); extern int r600_get_pcie_lanes(struct radeon_device *rdev); -- cgit v1.2.3 From 1cbcca302a318499f20a512847c5d6a510c08c35 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 3 Jun 2013 10:32:40 -0400 Subject: drm/radeon: don't allow audio on DCE6 It's not supported yet. Fixes display issues when users force it on. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/atombios_encoders.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index 44a7da66e081..8406c8251fbf 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -667,6 +667,8 @@ atombios_digital_setup(struct drm_encoder *encoder, int action) int atombios_get_encoder_mode(struct drm_encoder *encoder) { + struct drm_device *dev = encoder->dev; + struct radeon_device *rdev = dev->dev_private; struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct drm_connector *connector; struct radeon_connector *radeon_connector; @@ -693,7 +695,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) case DRM_MODE_CONNECTOR_DVII: case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */ if (drm_detect_hdmi_monitor(radeon_connector->edid) && - radeon_audio) + radeon_audio && + !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */ return ATOM_ENCODER_MODE_HDMI; else if (radeon_connector->use_digital) return ATOM_ENCODER_MODE_DVI; @@ -704,7 +707,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) case DRM_MODE_CONNECTOR_HDMIA: default: if (drm_detect_hdmi_monitor(radeon_connector->edid) && - radeon_audio) + radeon_audio && + !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */ return ATOM_ENCODER_MODE_HDMI; else return ATOM_ENCODER_MODE_DVI; @@ -718,7 +722,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder) (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) return ATOM_ENCODER_MODE_DP; else if (drm_detect_hdmi_monitor(radeon_connector->edid) && - radeon_audio) + radeon_audio && + !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */ return ATOM_ENCODER_MODE_HDMI; else return ATOM_ENCODER_MODE_DVI; -- cgit v1.2.3 From b5f83e9b069f4bf19214ca6130947806a2b853fa Mon Sep 17 00:00:00 2001 From: Markus Pargmann Date: Tue, 28 May 2013 17:00:57 +0200 Subject: ARM: mxs: icoll: Fix interrupts gpio bank 0 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The mxs interrupt controller does not support polling for interrupts, but the driver still does it, which is a relict from pre-MULTI_IRQ_HANDLER times. The existing code assumes that 0x7f means no interrupt, but this value is an actually valid irq number, namely gpio bank 0's irq. This results in the driver not detecting when irq 0x7f is active which makes the machine effectively dead lock. This patch removes the interrupt poll loop and allows usage of gpio0 interrupt without an infinite loop. Signed-off-by: Uwe Kleine-König Signed-off-by: Markus Pargmann Cc: stable@vger.kernel.org Signed-off-by: Shawn Guo --- drivers/irqchip/irq-mxs.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/irqchip/irq-mxs.c b/drivers/irqchip/irq-mxs.c index 29889bbdcc6d..63b3d4eb0ef7 100644 --- a/drivers/irqchip/irq-mxs.c +++ b/drivers/irqchip/irq-mxs.c @@ -76,16 +76,10 @@ asmlinkage void __exception_irq_entry icoll_handle_irq(struct pt_regs *regs) { u32 irqnr; - do { - irqnr = __raw_readl(icoll_base + HW_ICOLL_STAT_OFFSET); - if (irqnr != 0x7f) { - __raw_writel(irqnr, icoll_base + HW_ICOLL_VECTOR); - irqnr = irq_find_mapping(icoll_domain, irqnr); - handle_IRQ(irqnr, regs); - continue; - } - break; - } while (1); + irqnr = __raw_readl(icoll_base + HW_ICOLL_STAT_OFFSET); + __raw_writel(irqnr, icoll_base + HW_ICOLL_VECTOR); + irqnr = irq_find_mapping(icoll_domain, irqnr); + handle_IRQ(irqnr, regs); } static int icoll_irq_domain_map(struct irq_domain *d, unsigned int virq, -- cgit v1.2.3 From bff09b099b31a31573b3c5943f805f6a08c714f0 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Thu, 30 May 2013 15:47:04 +0200 Subject: serial/imx: disable hardware flow control at startup We only want to enable hardware flow control if RTS/CTS pins are connected. Signed-off-by: Lucas Stach Signed-off-by: Markus Pargmann Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 147c9e193595..8cdfbd365892 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -761,6 +761,8 @@ static int imx_startup(struct uart_port *port) temp = readl(sport->port.membase + UCR2); temp |= (UCR2_RXEN | UCR2_TXEN); + if (!sport->have_rtscts) + temp |= UCR2_IRTS; writel(temp, sport->port.membase + UCR2); if (USE_IRDA(sport)) { -- cgit v1.2.3 From 60e93575476f90a72146b51283f514da655410a7 Mon Sep 17 00:00:00 2001 From: Chander Kashyap Date: Tue, 28 May 2013 18:32:07 +0530 Subject: serial: samsung: enable clock before clearing pending interrupts during init Ensure that the uart controller clock is enabled prior to writing to the interrupt mask and pending registers in the s3c24xx_serial_init_port function. Signed-off-by: Chander Kashyap Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/samsung.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers') diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index 89429410a245..0c8a9fa2be6c 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1166,6 +1166,18 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, ourport->tx_irq = ret; ourport->clk = clk_get(&platdev->dev, "uart"); + if (IS_ERR(ourport->clk)) { + pr_err("%s: Controller clock not found\n", + dev_name(&platdev->dev)); + return PTR_ERR(ourport->clk); + } + + ret = clk_prepare_enable(ourport->clk); + if (ret) { + pr_err("uart: clock failed to prepare+enable: %d\n", ret); + clk_put(ourport->clk); + return ret; + } /* Keep all interrupts masked and cleared */ if (s3c24xx_serial_has_interrupt_mask(port)) { @@ -1180,6 +1192,7 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport, /* reset the fifos (and setup the uart) */ s3c24xx_serial_resetport(port, cfg); + clk_disable_unprepare(ourport->clk); return 0; } -- cgit v1.2.3 From 317a68427d4b0a302ecff252fd83a00557947db8 Mon Sep 17 00:00:00 2001 From: Kyle McMartin Date: Mon, 3 Jun 2013 09:38:26 -0400 Subject: Revert "serial: 8250: Make SERIAL_8250_RUNTIME_UARTS work correctly" This reverts commit cfcec52e9781f08948c6eb98198d65c45be75a70. This regresses a longstanding behaviour on X86 systems, which end up with PCI serial ports moving between ttyS4 and ttyS0 when you bisect to opposite sides of this commit, resulting in the need to constantly modify the console setting in order to bisect across it. Please revert, we can work on solving this for ARM platforms in a less disruptive way. Signed-off-by: Kyle McMartin Cc: Karthik Manamcheri Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_core.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 46528d57be72..86c00b1c5583 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -2755,7 +2755,7 @@ static void __init serial8250_isa_init_ports(void) if (nr_uarts > UART_NR) nr_uarts = UART_NR; - for (i = 0; i < UART_NR; i++) { + for (i = 0; i < nr_uarts; i++) { struct uart_8250_port *up = &serial8250_ports[i]; struct uart_port *port = &up->port; @@ -2916,7 +2916,7 @@ static int __init serial8250_console_setup(struct console *co, char *options) * if so, search for the first available port that does have * console support. */ - if (co->index >= UART_NR) + if (co->index >= nr_uarts) co->index = 0; port = &serial8250_ports[co->index].port; if (!port->iobase && !port->membase) @@ -2957,7 +2957,7 @@ int serial8250_find_port(struct uart_port *p) int line; struct uart_port *port; - for (line = 0; line < UART_NR; line++) { + for (line = 0; line < nr_uarts; line++) { port = &serial8250_ports[line].port; if (uart_match_port(p, port)) return line; @@ -3110,7 +3110,7 @@ static int serial8250_remove(struct platform_device *dev) { int i; - for (i = 0; i < UART_NR; i++) { + for (i = 0; i < nr_uarts; i++) { struct uart_8250_port *up = &serial8250_ports[i]; if (up->port.dev == &dev->dev) @@ -3178,7 +3178,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port * /* * First, find a port entry which matches. */ - for (i = 0; i < UART_NR; i++) + for (i = 0; i < nr_uarts; i++) if (uart_match_port(&serial8250_ports[i].port, port)) return &serial8250_ports[i]; @@ -3187,7 +3187,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port * * free entry. We look for one which hasn't been previously * used (indicated by zero iobase). */ - for (i = 0; i < UART_NR; i++) + for (i = 0; i < nr_uarts; i++) if (serial8250_ports[i].port.type == PORT_UNKNOWN && serial8250_ports[i].port.iobase == 0) return &serial8250_ports[i]; @@ -3196,7 +3196,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port * * That also failed. Last resort is to find any entry which * doesn't have a real port associated with it. */ - for (i = 0; i < UART_NR; i++) + for (i = 0; i < nr_uarts; i++) if (serial8250_ports[i].port.type == PORT_UNKNOWN) return &serial8250_ports[i]; -- cgit v1.2.3 From 6529591e3eef65f0f528a81ac169f6e294b947a7 Mon Sep 17 00:00:00 2001 From: Robert Butora Date: Fri, 31 May 2013 18:09:51 +0300 Subject: USB: Serial: cypress_M8: Enable FRWD Dongle hidcom device The patch adds a new HIDCOM device and does not affect other devices driven by the cypress_M8 module. Changes are: - add VendorID ProductID to device tables - skip unstable speed check because FRWD uses 115200bps - skip reset at probe which is an issue workaround for this particular device. Signed-off-by: Robert Butora Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cypress_m8.c | 18 +++++++++++++++++- drivers/usb/serial/cypress_m8.h | 4 ++++ 2 files changed, 21 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index d341555d37d8..082120198f87 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -65,6 +65,7 @@ static const struct usb_device_id id_table_earthmate[] = { static const struct usb_device_id id_table_cyphidcomrs232[] = { { USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) }, { USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) }, + { USB_DEVICE(VENDOR_ID_FRWD, PRODUCT_ID_CYPHIDCOM_FRWD) }, { } /* Terminating entry */ }; @@ -78,6 +79,7 @@ static const struct usb_device_id id_table_combined[] = { { USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) }, { USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) }, { USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) }, + { USB_DEVICE(VENDOR_ID_FRWD, PRODUCT_ID_CYPHIDCOM_FRWD) }, { USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) }, { } /* Terminating entry */ }; @@ -229,6 +231,12 @@ static struct usb_serial_driver * const serial_drivers[] = { * Cypress serial helper functions *****************************************************************************/ +/* FRWD Dongle hidcom needs to skip reset and speed checks */ +static inline bool is_frwd(struct usb_device *dev) +{ + return ((le16_to_cpu(dev->descriptor.idVendor) == VENDOR_ID_FRWD) && + (le16_to_cpu(dev->descriptor.idProduct) == PRODUCT_ID_CYPHIDCOM_FRWD)); +} static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate) { @@ -238,6 +246,10 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate) if (unstable_bauds) return new_rate; + /* FRWD Dongle uses 115200 bps */ + if (is_frwd(port->serial->dev)) + return new_rate; + /* * The general purpose firmware for the Cypress M8 allows for * a maximum speed of 57600bps (I have no idea whether DeLorme @@ -448,7 +460,11 @@ static int cypress_generic_port_probe(struct usb_serial_port *port) return -ENOMEM; } - usb_reset_configuration(serial->dev); + /* Skip reset for FRWD device. It is a workaound: + device hangs if it receives SET_CONFIGURE in Configured + state. */ + if (!is_frwd(serial->dev)) + usb_reset_configuration(serial->dev); priv->cmd_ctrl = 0; priv->line_control = 0; diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h index 67cf60826884..b461311a2ae7 100644 --- a/drivers/usb/serial/cypress_m8.h +++ b/drivers/usb/serial/cypress_m8.h @@ -24,6 +24,10 @@ #define VENDOR_ID_CYPRESS 0x04b4 #define PRODUCT_ID_CYPHIDCOM 0x5500 +/* FRWD Dongle - a GPS sports watch */ +#define VENDOR_ID_FRWD 0x6737 +#define PRODUCT_ID_CYPHIDCOM_FRWD 0x0001 + /* Powercom UPS, chip CY7C63723 */ #define VENDOR_ID_POWERCOM 0x0d9f #define PRODUCT_ID_UPS 0x0002 -- cgit v1.2.3 From 8a2f132a01c2dd4c3905fa560f92019761ed72b1 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Fri, 24 May 2013 12:01:51 +0200 Subject: USB: serial: Add Option GTM681W to qcserial device table. The Option GTM681W uses a qualcomm chip and can be served by the qcserial device driver. Signed-off-by: Richard Weinberger Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/qcserial.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 59b32b782126..bd794b43898c 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -118,6 +118,7 @@ static const struct usb_device_id id_table[] = { {USB_DEVICE(0x1199, 0x901b)}, /* Sierra Wireless MC7770 */ {USB_DEVICE(0x12D1, 0x14F0)}, /* Sony Gobi 3000 QDL */ {USB_DEVICE(0x12D1, 0x14F1)}, /* Sony Gobi 3000 Composite */ + {USB_DEVICE(0x0AF0, 0x8120)}, /* Option GTM681W */ /* non Gobi Qualcomm serial devices */ {USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)}, /* Sierra Wireless MC7700 Device Management */ -- cgit v1.2.3 From e919b86c3b018c0e0c5e522354e743dcc0824ee1 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 3 Jun 2013 02:02:31 -0700 Subject: staging: alarm-dev: information leak in alarm_ioctl() Smatch complains that if we pass an invalid clock type then "ts" is never set. We need to check for errors earlier, otherwise we end up passing uninitialized stack data to userspace. Signed-off-by: Dan Carpenter Acked-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/alarm-dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/android/alarm-dev.c b/drivers/staging/android/alarm-dev.c index ceb1c643753d..c8600d96b9df 100644 --- a/drivers/staging/android/alarm-dev.c +++ b/drivers/staging/android/alarm-dev.c @@ -264,6 +264,8 @@ static long alarm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } rv = alarm_do_ioctl(file, cmd, &ts); + if (rv) + return rv; switch (ANDROID_ALARM_BASE_CMD(cmd)) { case ANDROID_ALARM_GET_TIME(0): @@ -272,7 +274,7 @@ static long alarm_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; } - return rv; + return 0; } #ifdef CONFIG_COMPAT static long alarm_compat_ioctl(struct file *file, unsigned int cmd, -- cgit v1.2.3 From 350753bf2bd1267f471e89829d68c35b9abf4930 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 21 May 2013 12:39:31 +0200 Subject: sh-pfc: r8a7779: Don't group USB OVC and PENC pins The USB_OVCn pins are alternate options for USB over-current detection when using a 3.3V USB interface. As they're not mandatory they can be used independently of the USB PENC pins. Don't group the USB_OVCn and PENC pins to avoid conflicts when the USB_OVCn pins are used by another function. Reported-by: Sergei Shtylyov Signed-off-by: Laurent Pinchart Acked-by: Linus Walleij Signed-off-by: Simon Horman --- drivers/pinctrl/sh-pfc/pfc-r8a7779.c | 45 ++++++++++++++++++++++++++++-------- 1 file changed, 36 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7779.c b/drivers/pinctrl/sh-pfc/pfc-r8a7779.c index 791a6719d8a9..8cd90e7e945a 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a7779.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7779.c @@ -2357,27 +2357,48 @@ static const unsigned int sdhi3_wp_mux[] = { }; /* - USB0 ------------------------------------------------------------------- */ static const unsigned int usb0_pins[] = { - /* OVC */ - 150, 154, + /* PENC */ + 154, }; static const unsigned int usb0_mux[] = { - USB_OVC0_MARK, USB_PENC0_MARK, + USB_PENC0_MARK, +}; +static const unsigned int usb0_ovc_pins[] = { + /* USB_OVC */ + 150 +}; +static const unsigned int usb0_ovc_mux[] = { + USB_OVC0_MARK, }; /* - USB1 ------------------------------------------------------------------- */ static const unsigned int usb1_pins[] = { - /* OVC */ - 152, 155, + /* PENC */ + 155, }; static const unsigned int usb1_mux[] = { - USB_OVC1_MARK, USB_PENC1_MARK, + USB_PENC1_MARK, +}; +static const unsigned int usb1_ovc_pins[] = { + /* USB_OVC */ + 152, +}; +static const unsigned int usb1_ovc_mux[] = { + USB_OVC1_MARK, }; /* - USB2 ------------------------------------------------------------------- */ static const unsigned int usb2_pins[] = { - /* OVC, PENC */ - 125, 156, + /* PENC */ + 156, }; static const unsigned int usb2_mux[] = { - USB_OVC2_MARK, USB_PENC2_MARK, + USB_PENC2_MARK, +}; +static const unsigned int usb2_ovc_pins[] = { + /* USB_OVC */ + 125, +}; +static const unsigned int usb2_ovc_mux[] = { + USB_OVC2_MARK, }; static const struct sh_pfc_pin_group pinmux_groups[] = { @@ -2501,8 +2522,11 @@ static const struct sh_pfc_pin_group pinmux_groups[] = { SH_PFC_PIN_GROUP(sdhi3_cd), SH_PFC_PIN_GROUP(sdhi3_wp), SH_PFC_PIN_GROUP(usb0), + SH_PFC_PIN_GROUP(usb0_ovc), SH_PFC_PIN_GROUP(usb1), + SH_PFC_PIN_GROUP(usb1_ovc), SH_PFC_PIN_GROUP(usb2), + SH_PFC_PIN_GROUP(usb2_ovc), }; static const char * const du0_groups[] = { @@ -2683,14 +2707,17 @@ static const char * const sdhi3_groups[] = { static const char * const usb0_groups[] = { "usb0", + "usb0_ovc", }; static const char * const usb1_groups[] = { "usb1", + "usb1_ovc", }; static const char * const usb2_groups[] = { "usb2", + "usb2_ovc", }; static const struct sh_pfc_function pinmux_functions[] = { -- cgit v1.2.3 From 53d3b4d7778daf15900867336c85d3f8dd70600c Mon Sep 17 00:00:00 2001 From: Egbert Eich Date: Tue, 4 Jun 2013 17:13:21 +0200 Subject: drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC. In intel_sdvo_get_lvds_modes() the wrong i2c adapter record is used for DDC. Thus the code will always have to rely on a LVDS panel mode supplied by VBT. In most cases this succeeds, so this didn't get detected for quite a while. This regression seems to have been introduced in commit f899fc64cda8569d0529452aafc0da31c042df2e Author: Chris Wilson Date: Tue Jul 20 15:44:45 2010 -0700 drm/i915: use GMBUS to manage i2c links Signed-off-by: Egbert Eich Cc: stable@vger.kernel.org Reviewed-by: Chris Wilson [danvet: Add note about which commit likely introduced this issue.] Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_sdvo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index d15428404b9a..4c47b449b775 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1776,7 +1776,7 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector) * Assume that the preferred modes are * arranged in priority order. */ - intel_ddc_get_modes(connector, intel_sdvo->i2c); + intel_ddc_get_modes(connector, &intel_sdvo->ddc); if (list_empty(&connector->probed_modes) == false) goto end; -- cgit v1.2.3 From eeb065582a9618c1cf5b7154df7bae06aeb44636 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Tue, 4 Jun 2013 09:30:55 -0700 Subject: Input: synaptics - fix sync lost after resume on some laptops In summary, the symptom is intermittent key events lost after resume on some machines with synaptics touchpad (seems this is synaptics _only_), and key events loss is due to serio port reconnect after psmouse sync lost. Removing psmouse and inserting it back during the suspend/resume process is able to work around the issue, so the difference between psmouse_connect() and psmouse_reconnect() is the key to the root cause of this problem. After comparing the two different paths, synaptics driver has its own implementation of synaptics_reconnect(), and the missing psmouse_probe() seems significant, the patch below added psmouse_probe() to the reconnect process, and has been verified many times that the issue could not be reliably reproduced. There are two PS/2 commands in psmouse_probe(): 1. PSMOUSE_CMD_GETID 2. PSMOUSE_CMD_RESET_DIS Only the PSMOUSE_CMD_GETID seems to be significant. The PSMOUSE_CMD_RESET_DIS is irrelevant to this issue after trying several times. So we have only implemented this patch to issue the PSMOUSE_CMD_GETID so far. Tested-by: Daniel Manrique Signed-off-by: James M Leddy Signed-off-by: Dmitry Torokhov --- drivers/input/mouse/synaptics.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 2f78538e09d0..b2420ae19e14 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -1379,6 +1379,7 @@ static int synaptics_reconnect(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; struct synaptics_data old_priv = *priv; + unsigned char param[2]; int retry = 0; int error; @@ -1394,6 +1395,7 @@ static int synaptics_reconnect(struct psmouse *psmouse) */ ssleep(1); } + ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); error = synaptics_detect(psmouse, 0); } while (error && ++retry < 3); -- cgit v1.2.3 From 3bd1f7e2db4124a2726f9afdeaaf82f09b0bd8eb Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Thu, 23 May 2013 10:22:33 -0700 Subject: Input: wacom - fix a typo for Cintiq 22HDT And make the lines easier to read. Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index 5c68e4486845..518282da6d85 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -1966,7 +1966,8 @@ static const struct wacom_features wacom_features_0xF4 = 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0xF8 = { "Wacom Cintiq 24HD touch", WACOM_PKGLEN_INTUOS, 104480, 65600, 2047, /* Pen */ - 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 }; + 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, + .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf6 }; static const struct wacom_features wacom_features_0xF6 = { "Wacom Cintiq 24HD touch", .type = WACOM_24HDT, /* Touch */ .oVid = USB_VENDOR_ID_WACOM, .oPid = 0xf8, .touch_max = 10 }; @@ -2009,7 +2010,8 @@ static const struct wacom_features wacom_features_0xFA = 63, WACOM_22HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES }; static const struct wacom_features wacom_features_0x5B = { "Wacom Cintiq 22HDT", WACOM_PKGLEN_INTUOS, 95840, 54260, 2047, - 63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5e }; + 63, WACOM_22HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES, + .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5e }; static const struct wacom_features wacom_features_0x5E = { "Wacom Cintiq 22HDT", .type = WACOM_24HDT, .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x5b, .touch_max = 10 }; @@ -2042,7 +2044,7 @@ static const struct wacom_features wacom_features_0xE5 = static const struct wacom_features wacom_features_0xE6 = { "Wacom ISDv4 E6", WACOM_PKGLEN_TPC2FG, 27760, 15694, 255, 0, TABLETPC2FG, WACOM_INTUOS_RES, WACOM_INTUOS_RES, - .touch_max = 2 }; + .touch_max = 2 }; static const struct wacom_features wacom_features_0xEC = { "Wacom ISDv4 EC", WACOM_PKGLEN_GRAPHIRE, 25710, 14500, 255, 0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES }; -- cgit v1.2.3 From d8a1d0d54d5fdac0347b75e9afd554b3dfaa465f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 4 Jun 2013 18:50:28 +0200 Subject: USB: zte_ev: fix broken open Remove bogus port-number check in open and close, which prevented this driver from being used with a minor number different from zero. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/zte_ev.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c index b9a88f253636..870e01e24481 100644 --- a/drivers/usb/serial/zte_ev.c +++ b/drivers/usb/serial/zte_ev.c @@ -41,9 +41,6 @@ static int zte_ev_usb_serial_open(struct tty_struct *tty, int len; unsigned char *buf; - if (port->number != 0) - return -ENODEV; - buf = kmalloc(MAX_SETUP_DATA_SIZE, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -166,9 +163,6 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) int len; unsigned char *buf; - if (port->number != 0) - return; - buf = kmalloc(MAX_SETUP_DATA_SIZE, GFP_KERNEL); if (!buf) return; -- cgit v1.2.3 From a07088098a650267b2eda689538133a324b9523f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 4 Jun 2013 18:50:29 +0200 Subject: USB: keyspan: fix bogus array index The outcont_endpoints array was indexed using the port minor number (which can be greater than the array size) rather than the device port number. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/keyspan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index eb30d7b01f36..d85a3e037490 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1559,7 +1559,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, d_details = s_priv->device_details; device_port = port->number - port->serial->minor; - outcont_urb = d_details->outcont_endpoints[port->number]; + outcont_urb = d_details->outcont_endpoints[device_port]; this_urb = p_priv->outcont_urb; dev_dbg(&port->dev, "%s - endpoint %d\n", __func__, usb_pipeendpoint(this_urb->pipe)); -- cgit v1.2.3 From c1ec1bcf0c97cdd4e25f16524c962fae9a4a39f9 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 4 Jun 2013 18:50:30 +0200 Subject: USB: keyspan: remove unused endpoint-array access Remove the no longer used endpoint-array access completely. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/keyspan.c | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index d85a3e037490..3549d073df22 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -1548,7 +1548,6 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, struct keyspan_serial_private *s_priv; struct keyspan_port_private *p_priv; const struct keyspan_device_details *d_details; - int outcont_urb; struct urb *this_urb; int device_port, err; @@ -1559,7 +1558,6 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, d_details = s_priv->device_details; device_port = port->number - port->serial->minor; - outcont_urb = d_details->outcont_endpoints[device_port]; this_urb = p_priv->outcont_urb; dev_dbg(&port->dev, "%s - endpoint %d\n", __func__, usb_pipeendpoint(this_urb->pipe)); @@ -1685,14 +1683,6 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial, err = usb_submit_urb(this_urb, GFP_ATOMIC); if (err != 0) dev_dbg(&port->dev, "%s - usb_submit_urb(setup) failed (%d)\n", __func__, err); -#if 0 - else { - dev_dbg(&port->dev, "%s - usb_submit_urb(%d) OK %d bytes (end %d)\n", __func__ - outcont_urb, this_urb->transfer_buffer_length, - usb_pipeendpoint(this_urb->pipe)); - } -#endif - return 0; } -- cgit v1.2.3 From a26f009a070e840fadacb91013b2391ba7ab6cc2 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 4 Jun 2013 18:50:31 +0200 Subject: USB: mos7720: fix hardware flow control The register access to enable hardware flow control depends on the device port number and not the port minor number. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7720.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index 6eac26649009..f27c621a9297 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -1629,7 +1629,7 @@ static void change_port_settings(struct tty_struct *tty, mos7720_port->shadowMCR |= (UART_MCR_XONANY); /* To set hardware flow control to the specified * * serial port, in SP1/2_CONTROL_REG */ - if (port->number) + if (port_number) write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x01); else write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x02); -- cgit v1.2.3 From 702df9f1819c7fc7e257251fabc5eec674342c32 Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Wed, 22 May 2013 22:41:00 +0100 Subject: iio:callback buffer: free the scan_mask MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reported-by: Michał Mirosław Signed-off-by: Jonathan Cameron --- drivers/iio/buffer_cb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c index 9201022945e9..9d19ba74f22b 100644 --- a/drivers/iio/buffer_cb.c +++ b/drivers/iio/buffer_cb.c @@ -64,7 +64,7 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, while (chan->indio_dev) { if (chan->indio_dev != indio_dev) { ret = -EINVAL; - goto error_release_channels; + goto error_free_scan_mask; } set_bit(chan->channel->scan_index, cb_buff->buffer.scan_mask); @@ -73,6 +73,8 @@ struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev, return cb_buff; +error_free_scan_mask: + kfree(cb_buff->buffer.scan_mask); error_release_channels: iio_channel_release_all(cb_buff->channels); error_free_cb_buff: @@ -100,6 +102,7 @@ EXPORT_SYMBOL_GPL(iio_channel_stop_all_cb); void iio_channel_release_all_cb(struct iio_cb_buffer *cb_buff) { + kfree(cb_buff->buffer.scan_mask); iio_channel_release_all(cb_buff->channels); kfree(cb_buff); } -- cgit v1.2.3 From 60bba385c5e86ee6a654e3345093eb48e258eb1d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 4 Jun 2013 16:13:25 +0300 Subject: staging: alarm-dev: information leak in alarm_compat_ioctl() If we pass an invalid clock type then "ts" is never set. We need to check for errors earlier, otherwise we end up passing uninitialized stack data to userspace. Reported-by: John Stultz Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/alarm-dev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/android/alarm-dev.c b/drivers/staging/android/alarm-dev.c index c8600d96b9df..6dc27dac679d 100644 --- a/drivers/staging/android/alarm-dev.c +++ b/drivers/staging/android/alarm-dev.c @@ -297,6 +297,8 @@ static long alarm_compat_ioctl(struct file *file, unsigned int cmd, } rv = alarm_do_ioctl(file, cmd, &ts); + if (rv) + return rv; switch (ANDROID_ALARM_BASE_CMD(cmd)) { case ANDROID_ALARM_GET_TIME(0): /* NOTE: we modified cmd above */ @@ -305,7 +307,7 @@ static long alarm_compat_ioctl(struct file *file, unsigned int cmd, break; } - return rv; + return 0; } #endif -- cgit v1.2.3 From e916b80d2b1988e985abc0a1c85eca5b96c61f48 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Tue, 4 Jun 2013 15:44:00 +0100 Subject: inkern: iio_device_put after incorrect return/goto The code uses return foo; goto err_type; when instead the form should have been ret = foo; goto err_type; Here this causes a useful iio_device_put to be skipped. Signed-off-by: Joe Perches Signed-off-by: Jonathan Cameron --- drivers/iio/inkern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index 795d100b4c36..dca4eed7b034 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -124,7 +124,7 @@ static int __of_iio_channel_get(struct iio_channel *channel, channel->indio_dev = indio_dev; index = iiospec.args_count ? iiospec.args[0] : 0; if (index >= indio_dev->num_channels) { - return -EINVAL; + err = -EINVAL; goto err_put; } channel->channel = &indio_dev->channels[index]; -- cgit v1.2.3 From 2eb3a81eef0510511a3211bb3da560f446a8c8de Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 3 Jun 2013 14:30:00 +0100 Subject: iio: frequency: ad4350: Fix bug / typo in mask Signed-off-by: Michael Hennerich Reviewed-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- drivers/iio/frequency/adf4350.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index a884252ac66b..e76d4ace53ff 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -212,7 +212,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq) (pdata->r2_user_settings & (ADF4350_REG2_PD_POLARITY_POS | ADF4350_REG2_LDP_6ns | ADF4350_REG2_LDF_INT_N | ADF4350_REG2_CHARGE_PUMP_CURR_uA(5000) | - ADF4350_REG2_MUXOUT(0x7) | ADF4350_REG2_NOISE_MODE(0x9))); + ADF4350_REG2_MUXOUT(0x7) | ADF4350_REG2_NOISE_MODE(0x3))); st->regs[ADF4350_REG3] = pdata->r3_user_settings & (ADF4350_REG3_12BIT_CLKDIV(0xFFF) | -- cgit v1.2.3 From 6c5d4c96f979611f0165dc825af9e1cea8dd35b9 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 3 Jun 2013 09:04:00 +0100 Subject: iio:inkern: Fix typo/bug in convert raw to processed. Signed-off-by: Michael Hennerich Signed-off-by: Jonathan Cameron --- drivers/iio/inkern.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c index dca4eed7b034..98ddc323add0 100644 --- a/drivers/iio/inkern.c +++ b/drivers/iio/inkern.c @@ -450,7 +450,7 @@ static int iio_convert_raw_to_processed_unlocked(struct iio_channel *chan, s64 raw64 = raw; int ret; - ret = iio_channel_read(chan, &offset, NULL, IIO_CHAN_INFO_SCALE); + ret = iio_channel_read(chan, &offset, NULL, IIO_CHAN_INFO_OFFSET); if (ret == 0) raw64 += offset; -- cgit v1.2.3 From a1c6693a50391683e7f5787bb027b1aae1afbedb Mon Sep 17 00:00:00 2001 From: Sagi Grimberg Date: Tue, 4 Jun 2013 05:13:26 +0000 Subject: net/mlx4_en: Fix adaptive moderation cq update When turning on adaptive_rx under adaptive moderation, the CQ's moderation count wasn't updated according to rx_frames which resulted in too many interrupts and bandwidth drop. Signed-off-by: Sagi Grimberg Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index b35f94700093..810aab01c3c9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1323,6 +1323,7 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) priv->last_moder_time[ring] = moder_time; cq = &priv->rx_cq[ring]; cq->moder_time = moder_time; + cq->moder_cnt = priv->rx_frames; err = mlx4_en_set_cq_moder(priv, cq); if (err) en_err(priv, "Failed modifying moderation for cq:%d\n", -- cgit v1.2.3 From 5efe5355f22fb9b7bb64d19809c0a75805e0ccb8 Mon Sep 17 00:00:00 2001 From: Jack Morgenstein Date: Tue, 4 Jun 2013 05:13:27 +0000 Subject: net/mlx4_core: Return -EPROBE_DEFER when a VF is probed before PF is sufficiently initialized In the PF initialization, SRIOV is enabled before the PF is fully initialized. This allows the kernel to probe the newly-exposed VFs before the PF is ready to handle them (nested probes). Have the probe method return the -EPROBE_DEFER value in this situation (instead of the VF probe method retrying its initialization in a loop, and returning -EIO on failure). When -EPROBE_DEFER is returned by the VF probe method, the kernel itself will retry the probe after a suitable delay. Based upon a suggestion by Ben Hutchings Signed-off-by: Jack Morgenstein Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/cmd.c | 2 -- drivers/net/ethernet/mellanox/mlx4/main.c | 20 ++++++-------------- 2 files changed, 6 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index 1df56cc50ee9..0e572a527154 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -222,8 +222,6 @@ static int mlx4_comm_cmd_poll(struct mlx4_dev *dev, u8 cmd, u16 param, * FLR process. The only non-zero result in the RESET command * is MLX4_DELAY_RESET_SLAVE*/ if ((MLX4_COMM_CMD_RESET == cmd)) { - mlx4_warn(dev, "Got slave FLRed from Communication" - " channel (ret:0x%x)\n", ret_from_pending); err = MLX4_DELAY_RESET_SLAVE; } else { mlx4_warn(dev, "Communication channel timed out\n"); diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 0d32a82458bf..2f4a26039e80 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1290,7 +1290,6 @@ static int mlx4_init_slave(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); u64 dma = (u64) priv->mfunc.vhcr_dma; - int num_of_reset_retries = NUM_OF_RESET_RETRIES; int ret_from_reset = 0; u32 slave_read; u32 cmd_channel_ver; @@ -1304,18 +1303,10 @@ static int mlx4_init_slave(struct mlx4_dev *dev) * NUM_OF_RESET_RETRIES times before leaving.*/ if (ret_from_reset) { if (MLX4_DELAY_RESET_SLAVE == ret_from_reset) { - msleep(SLEEP_TIME_IN_RESET); - while (ret_from_reset && num_of_reset_retries) { - mlx4_warn(dev, "slave is currently in the" - "middle of FLR. retrying..." - "(try num:%d)\n", - (NUM_OF_RESET_RETRIES - - num_of_reset_retries + 1)); - ret_from_reset = - mlx4_comm_cmd(dev, MLX4_COMM_CMD_RESET, - 0, MLX4_COMM_TIME); - num_of_reset_retries = num_of_reset_retries - 1; - } + mlx4_warn(dev, "slave is currently in the " + "middle of FLR. Deferring probe.\n"); + mutex_unlock(&priv->cmd.slave_cmd_mutex); + return -EPROBE_DEFER; } else goto err; } @@ -1526,7 +1517,8 @@ static int mlx4_init_hca(struct mlx4_dev *dev) } else { err = mlx4_init_slave(dev); if (err) { - mlx4_err(dev, "Failed to initialize slave\n"); + if (err != -EPROBE_DEFER) + mlx4_err(dev, "Failed to initialize slave\n"); return err; } -- cgit v1.2.3 From ef96f7d46ad86625237da8a35e812bdf7896e640 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 4 Jun 2013 05:13:28 +0000 Subject: net/mlx4_en: Handle unassigned VF MAC address correctly When a VF sense they didn't get MAC address, use random one. This will address the case of administrator not assigning MAC to the VF through the PF OS APIs and keep udev happy. Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 810aab01c3c9..89c47ea84b50 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -2119,6 +2119,7 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, struct mlx4_en_priv *priv; int i; int err; + u64 mac_u64; dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), MAX_TX_RINGS, MAX_RX_RINGS); @@ -2192,10 +2193,17 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, dev->addr_len = ETH_ALEN; mlx4_en_u64_to_mac(dev->dev_addr, mdev->dev->caps.def_mac[priv->port]); if (!is_valid_ether_addr(dev->dev_addr)) { - en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n", - priv->port, dev->dev_addr); - err = -EINVAL; - goto out; + if (mlx4_is_slave(priv->mdev->dev)) { + eth_hw_addr_random(dev); + en_warn(priv, "Assigned random MAC address %pM\n", dev->dev_addr); + mac_u64 = mlx4_en_mac_to_u64(dev->dev_addr); + mdev->dev->caps.def_mac[priv->port] = mac_u64; + } else { + en_err(priv, "Port: %d, invalid mac burned: %pM, quiting\n", + priv->port, dev->dev_addr); + err = -EINVAL; + goto out; + } } memcpy(priv->prev_mac, dev->dev_addr, sizeof(priv->prev_mac)); -- cgit v1.2.3 From c418253f12c0a95c7cd894953644c7488899c9fd Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Tue, 4 Jun 2013 05:13:29 +0000 Subject: net/mlx4_core: Keep VF assigned MAC in the PF admin table MAC addresses assigned by the PF to VFs were not kept in the PF driver admin table. As a result, displaying the VF MACs from the PF interface to user space showed zero address where in fact the VF got non-zero address from the PF, fix that. Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/fw.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c index 58a8e535d698..2c97901c6a6d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/fw.c +++ b/drivers/net/ethernet/mellanox/mlx4/fw.c @@ -840,12 +840,16 @@ int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave, MLX4_CMD_NATIVE); if (!err && dev->caps.function != slave) { - /* set slave default_mac address */ - MLX4_GET(def_mac, outbox->buf, QUERY_PORT_MAC_OFFSET); - def_mac += slave << 8; /* if config MAC in DB use it */ if (priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac) def_mac = priv->mfunc.master.vf_oper[slave].vport[vhcr->in_modifier].state.mac; + else { + /* set slave default_mac address */ + MLX4_GET(def_mac, outbox->buf, QUERY_PORT_MAC_OFFSET); + def_mac += slave << 8; + priv->mfunc.master.vf_admin[slave].vport[vhcr->in_modifier].mac = def_mac; + } + MLX4_PUT(outbox->buf, def_mac, QUERY_PORT_MAC_OFFSET); /* get port type - currently only eth is enabled */ -- cgit v1.2.3 From e768fb292d362ff2742d843e346a10853bde68be Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Sun, 2 Jun 2013 23:28:41 +0000 Subject: bnx2x: fix TCP offload for tunneling ipv4 over ipv6 FW was initialized with data from wrong header, this caused TSO packets have wrong IP csum. Signed-off-by: Dmitry Kravkov Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index be59ec4b2c30..e3fe1ce41522 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -3192,11 +3192,11 @@ static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb) rc |= XMIT_CSUM_TCP; if (skb_is_gso_v6(skb)) { - rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP | XMIT_CSUM_V6); + rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP); if (rc & XMIT_CSUM_ENC) rc |= XMIT_GSO_ENC_V6; } else if (skb_is_gso(skb)) { - rc |= (XMIT_GSO_V4 | XMIT_CSUM_V4 | XMIT_CSUM_TCP); + rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP); if (rc & XMIT_CSUM_ENC) rc |= XMIT_GSO_ENC_V4; } @@ -3483,19 +3483,18 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, { u16 hlen_w = 0; u8 outerip_off, outerip_len = 0; + /* from outer IP to transport */ hlen_w = (skb_inner_transport_header(skb) - skb_network_header(skb)) >> 1; /* transport len */ - if (xmit_type & XMIT_CSUM_TCP) - hlen_w += inner_tcp_hdrlen(skb) >> 1; - else - hlen_w += sizeof(struct udphdr) >> 1; + hlen_w += inner_tcp_hdrlen(skb) >> 1; pbd2->fw_ip_hdr_to_payload_w = hlen_w; - if (xmit_type & XMIT_CSUM_ENC_V4) { + /* outer IP header info */ + if (xmit_type & XMIT_CSUM_V4) { struct iphdr *iph = ip_hdr(skb); pbd2->fw_ip_csum_wo_len_flags_frag = bswab16(csum_fold((~iph->check) - -- cgit v1.2.3 From ff5b2fabf53426c15a5f041505687f94d1b2109f Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Mon, 3 Jun 2013 00:38:39 +0000 Subject: net: fec: add fallback to random MAC address If no valid MAC address could be obtained from the hardware, fall back to a randomly generated one. Signed-off-by: Pavel Machek Signed-off-by: Lucas Stach Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/fec_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 85a06037b242..a667015be22a 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1038,6 +1038,18 @@ static void fec_get_mac(struct net_device *ndev) iap = &tmpaddr[0]; } + /* + * 5) random mac address + */ + if (!is_valid_ether_addr(iap)) { + /* Report it and use a random ethernet address instead */ + netdev_err(ndev, "Invalid MAC address: %pM\n", iap); + eth_hw_addr_random(ndev); + netdev_info(ndev, "Using random MAC address: %pM\n", + ndev->dev_addr); + return; + } + memcpy(ndev->dev_addr, iap, ETH_ALEN); /* Adjust MAC if using macaddr */ -- cgit v1.2.3 From 5b61ff43a774b9843402fb280fec6d700e1fe583 Mon Sep 17 00:00:00 2001 From: Roi Dayan Date: Wed, 8 May 2013 12:21:17 +0000 Subject: IB/iser: Fix device removal flow Change the code to destroy the "last opened" rdma_cm id after making sure we released all other objects (QP, CQs, PD, etc) associated with the IB device. Since iser accesses the IB device using the rdma_cm id, we need to free any objects that are related to the device that is associated with the rdma_cm id prior to destroying that id. When this isn't done, the low level driver that created this device can be unloaded before iser has a chance to free all the objects and a such a call may invoke code segment which isn't valid any more and crash. Cc: Sean Hefty Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iser_verbs.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index 5278916c3103..f13cc227eed7 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -292,10 +292,10 @@ out_err: } /** - * releases the FMR pool, QP and CMA ID objects, returns 0 on success, + * releases the FMR pool and QP objects, returns 0 on success, * -1 on failure */ -static int iser_free_ib_conn_res(struct iser_conn *ib_conn, int can_destroy_id) +static int iser_free_ib_conn_res(struct iser_conn *ib_conn) { int cq_index; BUG_ON(ib_conn == NULL); @@ -314,13 +314,9 @@ static int iser_free_ib_conn_res(struct iser_conn *ib_conn, int can_destroy_id) rdma_destroy_qp(ib_conn->cma_id); } - /* if cma handler context, the caller acts s.t the cma destroy the id */ - if (ib_conn->cma_id != NULL && can_destroy_id) - rdma_destroy_id(ib_conn->cma_id); ib_conn->fmr_pool = NULL; ib_conn->qp = NULL; - ib_conn->cma_id = NULL; kfree(ib_conn->page_vec); if (ib_conn->login_buf) { @@ -415,11 +411,16 @@ static void iser_conn_release(struct iser_conn *ib_conn, int can_destroy_id) list_del(&ib_conn->conn_list); mutex_unlock(&ig.connlist_mutex); iser_free_rx_descriptors(ib_conn); - iser_free_ib_conn_res(ib_conn, can_destroy_id); + iser_free_ib_conn_res(ib_conn); ib_conn->device = NULL; /* on EVENT_ADDR_ERROR there's no device yet for this conn */ if (device != NULL) iser_device_try_release(device); + /* if cma handler context, the caller actually destroy the id */ + if (ib_conn->cma_id != NULL && can_destroy_id) { + rdma_destroy_id(ib_conn->cma_id); + ib_conn->cma_id = NULL; + } iscsi_destroy_endpoint(ib_conn->ep); } -- cgit v1.2.3 From 28f292e879a6acf745005e75196fe8f7cc504103 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Wed, 8 May 2013 12:21:18 +0000 Subject: IB/iser: Add Mellanox copyright Add Mellanox copyright to the iser initiator source code which I maintain. Signed-off-by: Or Gerlitz Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/iser/iscsi_iser.c | 1 + drivers/infiniband/ulp/iser/iscsi_iser.h | 1 + drivers/infiniband/ulp/iser/iser_initiator.c | 1 + drivers/infiniband/ulp/iser/iser_memory.c | 1 + drivers/infiniband/ulp/iser/iser_verbs.c | 1 + 5 files changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index f19b0998a53c..2e84ef859c5b 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -5,6 +5,7 @@ * Copyright (C) 2004 Alex Aizman * Copyright (C) 2005 Mike Christie * Copyright (c) 2005, 2006 Voltaire, Inc. All rights reserved. + * Copyright (c) 2013 Mellanox Technologies. All rights reserved. * maintained by openib-general@openib.org * * This software is available to you under a choice of one of two diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 06f578cde75b..4f069c0d4c04 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -8,6 +8,7 @@ * * Copyright (c) 2004, 2005, 2006 Voltaire, Inc. All rights reserved. * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. + * Copyright (c) 2013 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/infiniband/ulp/iser/iser_initiator.c b/drivers/infiniband/ulp/iser/iser_initiator.c index a00ccd1ca333..b6d81a86c976 100644 --- a/drivers/infiniband/ulp/iser/iser_initiator.c +++ b/drivers/infiniband/ulp/iser/iser_initiator.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2004, 2005, 2006 Voltaire, Inc. All rights reserved. + * Copyright (c) 2013 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c index 68ebb7fe072a..7827baf455a1 100644 --- a/drivers/infiniband/ulp/iser/iser_memory.c +++ b/drivers/infiniband/ulp/iser/iser_memory.c @@ -1,5 +1,6 @@ /* * Copyright (c) 2004, 2005, 2006 Voltaire, Inc. All rights reserved. + * Copyright (c) 2013 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index f13cc227eed7..2c4941d0656b 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -1,6 +1,7 @@ /* * Copyright (c) 2004, 2005, 2006 Voltaire, Inc. All rights reserved. * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. + * Copyright (c) 2013 Mellanox Technologies. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU -- cgit v1.2.3 From f3bdf34465307fc3f6967a9202a921e11505b2e6 Mon Sep 17 00:00:00 2001 From: Mike Marciniszyn Date: Fri, 17 May 2013 12:40:32 +0000 Subject: IB/qib: Fix lockdep splat in qib_alloc_lkey() The following backtrace is reported with CONFIG_PROVE_RCU: drivers/infiniband/hw/qib/qib_keys.c:64 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 1 4 locks held by kworker/0:1/56: #0: (events){.+.+.+}, at: [] process_one_work+0x165/0x4a0 #1: ((&wfc.work)){+.+.+.}, at: [] process_one_work+0x165/0x4a0 #2: (device_mutex){+.+.+.}, at: [] ib_register_device+0x38/0x220 [ib_core] #3: (&(&dev->lk_table.lock)->rlock){......}, at: [] qib_alloc_lkey+0x3c/0x1b0 [ib_qib] stack backtrace: Pid: 56, comm: kworker/0:1 Not tainted 3.10.0-rc1+ #6 Call Trace: [] lockdep_rcu_suspicious+0xe5/0x130 [] qib_alloc_lkey+0x101/0x1b0 [ib_qib] [] qib_get_dma_mr+0xa6/0xd0 [ib_qib] [] ib_get_dma_mr+0x1a/0x50 [ib_core] [] ib_mad_port_open+0x12c/0x390 [ib_mad] [] ? trace_hardirqs_on_caller+0x105/0x190 [] ib_mad_init_device+0x52/0x110 [ib_mad] [] ? sl2vl_attr_show+0x30/0x30 [ib_qib] [] ib_register_device+0x1a9/0x220 [ib_core] [] qib_register_ib_device+0x735/0xa40 [ib_qib] [] ? mod_timer+0x118/0x220 [] qib_init_one+0x1e5/0x400 [ib_qib] [] local_pci_probe+0x4e/0x90 [] work_for_cpu_fn+0x18/0x30 [] process_one_work+0x1d6/0x4a0 [] ? process_one_work+0x165/0x4a0 [] worker_thread+0x119/0x370 [] ? manage_workers+0x180/0x180 [] kthread+0xee/0x100 [] ? __init_kthread_worker+0x70/0x70 [] ret_from_fork+0x7c/0xb0 [] ? __init_kthread_worker+0x70/0x70 Per Documentation/RCU/lockdep-splat.txt, the code now uses rcu_access_pointer() vs. rcu_dereference(). Reported-by: Jay Fenlason Reviewed-by: Dean Luick Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- drivers/infiniband/hw/qib/qib_keys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c index 81c7b73695d2..3b9afccaaade 100644 --- a/drivers/infiniband/hw/qib/qib_keys.c +++ b/drivers/infiniband/hw/qib/qib_keys.c @@ -61,7 +61,7 @@ int qib_alloc_lkey(struct qib_mregion *mr, int dma_region) if (dma_region) { struct qib_mregion *tmr; - tmr = rcu_dereference(dev->dma_mr); + tmr = rcu_access_pointer(dev->dma_mr); if (!tmr) { qib_get_mr(mr); rcu_assign_pointer(dev->dma_mr, mr); -- cgit v1.2.3 From 44dbc78ee43d5df0bbcd7f3ae6a0ba00ed261e95 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Mon, 3 Jun 2013 02:59:57 +0000 Subject: bnx2x: Fix bridged GSO for 57710/57711 chips It was recently found out that GSO on 57710/57711 was broken, due to packets being sent without a valid IP checksum. Commit 057cf65 "bnx2x: Fix GSO for 57710/57711 chips" partially fixed this issue, but failed to set the correct IP checksum when receiving GSO packets via bridges, as such packets enter bnx2x_tx_split() and the FW flags needed to calculate IP checksum were erroneously set in the incorrect buffer descriptor. This patch re-enables GSO in said scenario for 57710/57711 chips. Signed-off-by: Yuval Mintz Signed-off-by: Ariel Elior Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index e3fe1ce41522..638e55435b04 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -3817,8 +3817,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) bnx2x_set_pbd_gso_e2(skb, &pbd_e2_parsing_data, xmit_type); else - bnx2x_set_pbd_gso(skb, pbd_e1x, tx_start_bd, - xmit_type); + bnx2x_set_pbd_gso(skb, pbd_e1x, first_bd, xmit_type); } /* Set the PBD's parsing_data field if not zero -- cgit v1.2.3 From 3a5395b3d57b9e3836c755434c88f4590d5ea6f6 Mon Sep 17 00:00:00 2001 From: "Jens Renner \\(EFE\\)" Date: Mon, 3 Jun 2013 04:32:52 +0000 Subject: net: ethernet: xilinx_emaclite: set protocol selector bits when writing ANAR This patch sets the protocol selector bits (4:0) of the PHY's MII_ADVERTISE register (ANAR) when writing ADVERTISE_ALL. The protocol selector bits are indicating IEEE 803.3u support and are fixed / read-only on some PHYs. Not setting them correctly on others (like TI DP83630) makes the PHY fall back to 10M HDX mode which should be avoided. Tested for TI DP83630 PHY on Microblaze platform. Signed-off-by: Jens Renner Tested-by: Michal Simek Signed-off-by: David S. Miller --- drivers/net/ethernet/xilinx/xilinx_emaclite.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c index 919b983114e9..b7268b3dae77 100644 --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c @@ -946,7 +946,8 @@ static int xemaclite_open(struct net_device *dev) phy_write(lp->phy_dev, MII_CTRL1000, 0); /* Advertise only 10 and 100mbps full/half duplex speeds */ - phy_write(lp->phy_dev, MII_ADVERTISE, ADVERTISE_ALL); + phy_write(lp->phy_dev, MII_ADVERTISE, ADVERTISE_ALL | + ADVERTISE_CSMA); /* Restart auto negotiation */ bmcr = phy_read(lp->phy_dev, MII_BMCR); -- cgit v1.2.3 From 9bc297ea0622bb2a6b3abfa2fa84f0a3b86ef8c8 Mon Sep 17 00:00:00 2001 From: Nithin Sujir Date: Mon, 3 Jun 2013 09:19:34 +0000 Subject: tg3: Add read dma workaround for 5720 Commit 091f0ea30074bc43f9250961b3247af713024bc6 "tg3: Add New 5719 Read DMA workaround" added a workaround for TX DMA stall on the 5719. This workaround needs to be applied to the 5720 as well. Cc: stable@vger.kernel.org Reported-by: Roland Dreier Tested-by: Roland Dreier Signed-off-by: Nithin Nayak Sujir Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 21 +++++++++++++++------ drivers/net/ethernet/broadcom/tg3.h | 5 +++-- 2 files changed, 18 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index 1f2dd928888a..0f493c8dc28b 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -9468,6 +9468,14 @@ static void tg3_rss_write_indir_tbl(struct tg3 *tp) } } +static inline u32 tg3_lso_rd_dma_workaround_bit(struct tg3 *tp) +{ + if (tg3_asic_rev(tp) == ASIC_REV_5719) + return TG3_LSO_RD_DMA_TX_LENGTH_WA_5719; + else + return TG3_LSO_RD_DMA_TX_LENGTH_WA_5720; +} + /* tp->lock is held. */ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy) { @@ -10153,16 +10161,17 @@ static int tg3_reset_hw(struct tg3 *tp, bool reset_phy) tw32_f(RDMAC_MODE, rdmac_mode); udelay(40); - if (tg3_asic_rev(tp) == ASIC_REV_5719) { + if (tg3_asic_rev(tp) == ASIC_REV_5719 || + tg3_asic_rev(tp) == ASIC_REV_5720) { for (i = 0; i < TG3_NUM_RDMA_CHANNELS; i++) { if (tr32(TG3_RDMA_LENGTH + (i << 2)) > TG3_MAX_MTU(tp)) break; } if (i < TG3_NUM_RDMA_CHANNELS) { val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL); - val |= TG3_LSO_RD_DMA_TX_LENGTH_WA; + val |= tg3_lso_rd_dma_workaround_bit(tp); tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val); - tg3_flag_set(tp, 5719_RDMA_BUG); + tg3_flag_set(tp, 5719_5720_RDMA_BUG); } } @@ -10526,15 +10535,15 @@ static void tg3_periodic_fetch_stats(struct tg3 *tp) TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST); TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST); TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST); - if (unlikely(tg3_flag(tp, 5719_RDMA_BUG) && + if (unlikely(tg3_flag(tp, 5719_5720_RDMA_BUG) && (sp->tx_ucast_packets.low + sp->tx_mcast_packets.low + sp->tx_bcast_packets.low) > TG3_NUM_RDMA_CHANNELS)) { u32 val; val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL); - val &= ~TG3_LSO_RD_DMA_TX_LENGTH_WA; + val &= ~tg3_lso_rd_dma_workaround_bit(tp); tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val); - tg3_flag_clear(tp, 5719_RDMA_BUG); + tg3_flag_clear(tp, 5719_5720_RDMA_BUG); } TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS); diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h index 9b2d3ac2474a..ff6e30eeae35 100644 --- a/drivers/net/ethernet/broadcom/tg3.h +++ b/drivers/net/ethernet/broadcom/tg3.h @@ -1422,7 +1422,8 @@ #define TG3_LSO_RD_DMA_CRPTEN_CTRL 0x00004910 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K 0x00030000 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K 0x000c0000 -#define TG3_LSO_RD_DMA_TX_LENGTH_WA 0x02000000 +#define TG3_LSO_RD_DMA_TX_LENGTH_WA_5719 0x02000000 +#define TG3_LSO_RD_DMA_TX_LENGTH_WA_5720 0x00200000 /* 0x4914 --> 0x4be0 unused */ #define TG3_NUM_RDMA_CHANNELS 4 @@ -3059,7 +3060,7 @@ enum TG3_FLAGS { TG3_FLAG_APE_HAS_NCSI, TG3_FLAG_TX_TSTAMP_EN, TG3_FLAG_4K_FIFO_LIMIT, - TG3_FLAG_5719_RDMA_BUG, + TG3_FLAG_5719_5720_RDMA_BUG, TG3_FLAG_RESET_TASK_PENDING, TG3_FLAG_PTP_CAPABLE, TG3_FLAG_5705_PLUS, -- cgit v1.2.3 From beba44b17d572ebb4909c1327360918ee4d89e43 Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Mon, 20 May 2013 19:14:00 +0200 Subject: drm/nv84/disp: Fix HDMI audio regression Code refactoring in commit 8e9e3d2deacc460fbb8a4691140318f6e85e6891 (drm/nv84/disp: move hdmi control into core) disabled HDMI audio on my nv84 by removing too much old code without adding it in the new one. This patch adds the missing code within the new code layout resulting in HDMI audio working again. It should work on any HDMI head, but due to lacking ahrdware I could only test the (1st) one. It also might be possible that similar code is needed for nva3, which I can't test. Signed-off-by: Alexander Stein Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/engine/disp/hdminv84.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/hdminv84.c b/drivers/gpu/drm/nouveau/core/engine/disp/hdminv84.c index 0d36bdc51417..7fdade6e604d 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/hdminv84.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/hdminv84.c @@ -55,6 +55,10 @@ nv84_hdmi_ctrl(struct nv50_disp_priv *priv, int head, int or, u32 data) nv_wr32(priv, 0x616510 + hoff, 0x00000000); nv_mask(priv, 0x616500 + hoff, 0x00000001, 0x00000001); + nv_mask(priv, 0x6165d0 + hoff, 0x00070001, 0x00010001); /* SPARE, HW_CTS */ + nv_mask(priv, 0x616568 + hoff, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */ + nv_mask(priv, 0x616578 + hoff, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */ + /* ??? */ nv_mask(priv, 0x61733c, 0x00100000, 0x00100000); /* RESETF */ nv_mask(priv, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */ -- cgit v1.2.3 From 89e033a4bc688bc6631c6de8b66d7f26f8e0652b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 3 Jun 2013 15:43:30 +1000 Subject: drm/nv50-nv84/fifo: fix resume regression introduced by playlist race fix Reported-by: Maarten Maathuis Reported-by: Sven Joachim Reported-by: Konrad Rzeszutek Wilk Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c index 89bf459d584b..e9b8217d0075 100644 --- a/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nv50.c @@ -40,14 +40,13 @@ * FIFO channel objects ******************************************************************************/ -void -nv50_fifo_playlist_update(struct nv50_fifo_priv *priv) +static void +nv50_fifo_playlist_update_locked(struct nv50_fifo_priv *priv) { struct nouveau_bar *bar = nouveau_bar(priv); struct nouveau_gpuobj *cur; int i, p; - mutex_lock(&nv_subdev(priv)->mutex); cur = priv->playlist[priv->cur_playlist]; priv->cur_playlist = !priv->cur_playlist; @@ -61,6 +60,13 @@ nv50_fifo_playlist_update(struct nv50_fifo_priv *priv) nv_wr32(priv, 0x0032f4, cur->addr >> 12); nv_wr32(priv, 0x0032ec, p); nv_wr32(priv, 0x002500, 0x00000101); +} + +void +nv50_fifo_playlist_update(struct nv50_fifo_priv *priv) +{ + mutex_lock(&nv_subdev(priv)->mutex); + nv50_fifo_playlist_update_locked(priv); mutex_unlock(&nv_subdev(priv)->mutex); } @@ -489,7 +495,7 @@ nv50_fifo_init(struct nouveau_object *object) for (i = 0; i < 128; i++) nv_wr32(priv, 0x002600 + (i * 4), 0x00000000); - nv50_fifo_playlist_update(priv); + nv50_fifo_playlist_update_locked(priv); nv_wr32(priv, 0x003200, 0x00000001); nv_wr32(priv, 0x003250, 0x00000001); -- cgit v1.2.3 From ea9197cc323839ef3d5280c0453b2c622caa6bc7 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 3 Jun 2013 16:07:06 +1000 Subject: drm/nv50/disp: force dac power state during load detect MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit fdo#64904 Reported-by: Gerhard Bräunlich Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c | 4 ++++ drivers/gpu/drm/nouveau/core/include/core/class.h | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c index d0817d94454c..a60a5accb540 100644 --- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c @@ -50,11 +50,15 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval) { const u32 doff = (or * 0x800); int load = -EINVAL; + nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80150000); + nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000); nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval); udelay(9500); nv_wr32(priv, 0x61a00c + doff, 0x80000000); load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27; nv_wr32(priv, 0x61a00c + doff, 0x00000000); + nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80550000); + nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000); return load; } diff --git a/drivers/gpu/drm/nouveau/core/include/core/class.h b/drivers/gpu/drm/nouveau/core/include/core/class.h index 0a393f7f055f..5a5961b6a6a3 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/class.h +++ b/drivers/gpu/drm/nouveau/core/include/core/class.h @@ -218,7 +218,7 @@ struct nv04_display_class { #define NV50_DISP_DAC_PWR_STATE 0x00000040 #define NV50_DISP_DAC_PWR_STATE_ON 0x00000000 #define NV50_DISP_DAC_PWR_STATE_OFF 0x00000040 -#define NV50_DISP_DAC_LOAD 0x0002000c +#define NV50_DISP_DAC_LOAD 0x00020100 #define NV50_DISP_DAC_LOAD_VALUE 0x00000007 #define NV50_DISP_PIOR_MTHD 0x00030000 -- cgit v1.2.3 From d40ee48acde16894fb3b241d7e896d5fa84e0f10 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 3 Jun 2013 16:40:14 +1000 Subject: drm/nv50/kms: use dac loadval from vbios, where it's available Regression from merging the old nv50/nvd9 code together, and may be needed to fully fix fdo#64904. The value is ignored completely by the hardware starting from nva3. Reported-by: Emil Velikov Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nv50_display.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c index 325887390677..e843cf86bcce 100644 --- a/drivers/gpu/drm/nouveau/nv50_display.c +++ b/drivers/gpu/drm/nouveau/nv50_display.c @@ -1554,7 +1554,9 @@ nv50_dac_detect(struct drm_encoder *encoder, struct drm_connector *connector) { struct nv50_disp *disp = nv50_disp(encoder->dev); int ret, or = nouveau_encoder(encoder)->or; - u32 load = 0; + u32 load = nouveau_drm(encoder->dev)->vbios.dactestval; + if (load == 0) + load = 340; ret = nv_exec(disp->core, NV50_DISP_DAC_LOAD + or, &load, sizeof(load)); if (ret || load != 7) -- cgit v1.2.3 From 8673b83bf2f013379453b4779047bf3c6ae387e4 Mon Sep 17 00:00:00 2001 From: Ross Lagerwall Date: Fri, 31 May 2013 20:45:17 +0100 Subject: acpi-cpufreq: set current frequency based on target P-State Commit 4b31e774 (Always set P-state on initialization) fixed bug #4634 and caused the driver to always set the target P-State at least once since the initial P-State may not be the desired one. Commit 5a1c0228 (cpufreq: Avoid calling cpufreq driver's target() routine if target_freq == policy->cur) caused a regression in this behavior. This fixes the regression by setting policy->cur based on the CPU's target frequency rather than the CPU's current reported frequency (which may be different). This means that the P-State will be set initially if the CPU's target frequency is different from the governor's target frequency. This fixes an issue where setting the default governor to performance wouldn't correctly enable turbo mode on all cores. Signed-off-by: Ross Lagerwall Reviewed-by: Len Brown Acked-by: Viresh Kumar Cc: 3.8+ Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/acpi-cpufreq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c index 11b8b4b54ceb..edc089e9d0c4 100644 --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -347,11 +347,11 @@ static u32 get_cur_val(const struct cpumask *mask) switch (per_cpu(acfreq_data, cpumask_first(mask))->cpu_feature) { case SYSTEM_INTEL_MSR_CAPABLE: cmd.type = SYSTEM_INTEL_MSR_CAPABLE; - cmd.addr.msr.reg = MSR_IA32_PERF_STATUS; + cmd.addr.msr.reg = MSR_IA32_PERF_CTL; break; case SYSTEM_AMD_MSR_CAPABLE: cmd.type = SYSTEM_AMD_MSR_CAPABLE; - cmd.addr.msr.reg = MSR_AMD_PERF_STATUS; + cmd.addr.msr.reg = MSR_AMD_PERF_CTL; break; case SYSTEM_IO_CAPABLE: cmd.type = SYSTEM_IO_CAPABLE; -- cgit v1.2.3 From a98d4f64a20b2b88697e7e08c871144a7e3f0ec4 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 3 Jun 2013 02:08:39 +0000 Subject: ACPI / APEI: fix error return code in ghes_probe() Fix to return a negative error code in the acpi_gsi_to_irq() and request_irq() error handling case instead of 0, as done elsewhere in this function. Signed-off-by: Wei Yongjun Reviewed-by: Huang Ying Signed-off-by: Rafael J. Wysocki --- drivers/acpi/apei/ghes.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index d668a8ae602b..ea750ed7c264 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -917,13 +917,14 @@ static int ghes_probe(struct platform_device *ghes_dev) break; case ACPI_HEST_NOTIFY_EXTERNAL: /* External interrupt vector is GSI */ - if (acpi_gsi_to_irq(generic->notify.vector, &ghes->irq)) { + rc = acpi_gsi_to_irq(generic->notify.vector, &ghes->irq); + if (rc) { pr_err(GHES_PFX "Failed to map GSI to IRQ for generic hardware error source: %d\n", generic->header.source_id); goto err_edac_unreg; } - if (request_irq(ghes->irq, ghes_irq_func, - 0, "GHES IRQ", ghes)) { + rc = request_irq(ghes->irq, ghes_irq_func, 0, "GHES IRQ", ghes); + if (rc) { pr_err(GHES_PFX "Failed to register IRQ for generic hardware error source: %d\n", generic->header.source_id); goto err_edac_unreg; -- cgit v1.2.3 From 9f29ab11ddbfc12db54df5a66dab22b39ad94e8e Mon Sep 17 00:00:00 2001 From: Aaron Lu Date: Tue, 4 Jun 2013 23:02:58 +0200 Subject: ACPI / scan: do not match drivers against objects having scan handlers With the introduction of ACPI scan handlers, an ACPI device object with an ACPI scan handler attached to it must not be bound to an ACPI driver any more. Therefore it doesn't make sense to match those ACPI device objects against a newly registered ACPI driver in acpi_bus_match(), so make that function return 0 if the device object passed to it has an ACPI scan handler attached. This also addresses a regression related to a broken ACPI table in the BIOS, where it has defined a _ROM method under the PCI root bridge object. This causes the video module to treat that object as a display controller device (since only display devices are supposed to have a _ROM method defined according to the ACPI spec). As a result, the ACPI video driver binds to the PCI root bridge object and overwrites the previously assigned driver_data field of it, causing subsequent calls to acpi_get_pci_dev() to fail. [rjw: Subject and changelog] References: https://bugzilla.kernel.org/show_bug.cgi?id=58091 Reported-by: Jason Cassell Reported-and-bisected-by: Dmitry S. Demin Cc: 3.9+ Signed-off-by: Aaron Lu Signed-off-by: Rafael J. Wysocki --- drivers/acpi/scan.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 44225cb15f3a..90c5759e1355 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -740,6 +740,10 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv) struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = to_acpi_driver(drv); + /* Skip ACPI device objects with scan handlers attached. */ + if (acpi_dev->handler) + return 0; + return acpi_dev->flags.match_driver && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); } -- cgit v1.2.3 From 2f7021a815f20f3481c10884fe9735ce2a56db35 Mon Sep 17 00:00:00 2001 From: Michael Wang Date: Wed, 5 Jun 2013 08:49:37 +0000 Subject: cpufreq: protect 'policy->cpus' from offlining during __gov_queue_work() Jiri Kosina and Borislav Petkov reported the warning: [ 51.616759] ------------[ cut here ]------------ [ 51.621460] WARNING: at arch/x86/kernel/smp.c:123 native_smp_send_reschedule+0x58/0x60() [ 51.629638] Modules linked in: ext2 vfat fat loop snd_hda_codec_hdmi usbhid snd_hda_codec_realtek coretemp kvm_intel kvm snd_hda_intel snd_hda_codec crc32_pclmul crc32c_intel ghash_clmulni_intel snd_hwdep snd_pcm aesni_intel sb_edac aes_x86_64 ehci_pci snd_page_alloc glue_helper snd_timer xhci_hcd snd iTCO_wdt iTCO_vendor_support ehci_hcd edac_core lpc_ich acpi_cpufreq lrw gf128mul ablk_helper cryptd mperf usbcore usb_common soundcore mfd_core dcdbas evdev pcspkr processor i2c_i801 button microcode [ 51.675581] CPU: 0 PID: 244 Comm: kworker/1:1 Tainted: G W 3.10.0-rc1+ #10 [ 51.683407] Hardware name: Dell Inc. Precision T3600/0PTTT9, BIOS A08 01/24/2013 [ 51.690901] Workqueue: events od_dbs_timer [ 51.695069] 0000000000000009 ffff88043a2f5b68 ffffffff8161441c ffff88043a2f5ba8 [ 51.702602] ffffffff8103e540 0000000000000033 0000000000000001 ffff88043d5f8000 [ 51.710136] 00000000ffff0ce1 0000000000000001 ffff88044fc4fc08 ffff88043a2f5bb8 [ 51.717691] Call Trace: [ 51.720191] [] dump_stack+0x19/0x1b [ 51.725396] [] warn_slowpath_common+0x70/0xa0 [ 51.731473] [] warn_slowpath_null+0x1a/0x20 [ 51.737378] [] native_smp_send_reschedule+0x58/0x60 [ 51.744013] [] wake_up_nohz_cpu+0x2d/0xa0 [ 51.749745] [] add_timer_on+0x8f/0x110 [ 51.755214] [] __queue_delayed_work+0x16e/0x1a0 [ 51.761470] [] ? try_to_grab_pending+0xd1/0x1a0 [ 51.767724] [] mod_delayed_work_on+0x5a/0xa0 [ 51.773719] [] gov_queue_work+0x4d/0xc0 [ 51.779271] [] od_dbs_timer+0xcb/0x170 [ 51.784734] [] process_one_work+0x1fd/0x540 [ 51.790634] [] ? process_one_work+0x192/0x540 [ 51.796711] [] worker_thread+0x122/0x380 [ 51.802350] [] ? rescuer_thread+0x320/0x320 [ 51.808264] [] kthread+0xea/0xf0 [ 51.813200] [] ? flush_kthread_worker+0x150/0x150 [ 51.819644] [] ret_from_fork+0x7c/0xb0 [ 51.918165] nouveau E[ DRM] GPU lockup - switching to software fbcon [ 51.930505] [] ? flush_kthread_worker+0x150/0x150 [ 51.936994] ---[ end trace f419538ada83b5c5 ]--- It was caused by the policy->cpus changed during the process of __gov_queue_work(), in other word, cpu offline happened. Use get/put_online_cpus() to prevent the offline from happening while __gov_queue_work() is running. [rjw: The problem has been present since recent commit 031299b (cpufreq: governors: Avoid unnecessary per cpu timer interrupts)] References: https://lkml.org/lkml/2013/6/5/88 Reported-by: Borislav Petkov Reported-and-tested-by: Jiri Kosina Signed-off-by: Michael Wang Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq_governor.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 5af40ad82d23..dc9b72e25c1a 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "cpufreq_governor.h" @@ -180,8 +181,10 @@ void gov_queue_work(struct dbs_data *dbs_data, struct cpufreq_policy *policy, if (!all_cpus) { __gov_queue_work(smp_processor_id(), dbs_data, delay); } else { + get_online_cpus(); for_each_cpu(i, policy->cpus) __gov_queue_work(i, dbs_data, delay); + put_online_cpus(); } } EXPORT_SYMBOL_GPL(gov_queue_work); -- cgit v1.2.3 From 0ca684365547cd5f214b5739568dae3df5d6cec9 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Mon, 25 Feb 2013 18:22:37 +0100 Subject: cpufreq: cpufreq-cpu0: use the exact frequency for clk_set_rate() clk_set_rate() isn't supposed to accept approximate frequencies, instead a supported frequency should be obtained from clk_round_rate() and then used to set the clock. Signed-off-by: Guennadi Liakhovetski Acked-by: Shawn Guo Acked-by: Viresh Kumar Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq-cpu0.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c index a64eb8b70444..ad1fde277661 100644 --- a/drivers/cpufreq/cpufreq-cpu0.c +++ b/drivers/cpufreq/cpufreq-cpu0.c @@ -45,7 +45,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, struct cpufreq_freqs freqs; struct opp *opp; unsigned long volt = 0, volt_old = 0, tol = 0; - long freq_Hz; + long freq_Hz, freq_exact; unsigned int index; int ret; @@ -60,6 +60,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000); if (freq_Hz < 0) freq_Hz = freq_table[index].frequency * 1000; + freq_exact = freq_Hz; freqs.new = freq_Hz / 1000; freqs.old = clk_get_rate(cpu_clk) / 1000; @@ -98,7 +99,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, } } - ret = clk_set_rate(cpu_clk, freqs.new * 1000); + ret = clk_set_rate(cpu_clk, freq_exact); if (ret) { pr_err("failed to set clock rate: %d\n", ret); if (cpu_reg) -- cgit v1.2.3 From 9a6aa279d3d17af73a029fa40654e92f4e75e8bb Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Wed, 5 Jun 2013 08:54:16 -0600 Subject: vfio: fix crash on rmmod devtmpfs_delete_node() calls devnode() callback with mode==NULL but vfio still tries to write there. The patch fixes this. Signed-off-by: Alexey Kardashevskiy Signed-off-by: Alex Williamson --- drivers/vfio/vfio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index acb7121a9316..6d78736563de 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -1360,7 +1360,7 @@ static const struct file_operations vfio_device_fops = { */ static char *vfio_devnode(struct device *dev, umode_t *mode) { - if (MINOR(dev->devt) == 0) + if (mode && (MINOR(dev->devt) == 0)) *mode = S_IRUGO | S_IWUGO; return kasprintf(GFP_KERNEL, "vfio/%s", dev_name(dev)); -- cgit v1.2.3 From f4488035abdac56682153aa0cff3d1dce84e1c54 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 5 Jun 2013 12:21:11 +0200 Subject: USB: serial: fix TIOCMIWAIT return value Fix regression introduced by commit 143d9d9616 ("USB: serial: add tiocmiwait subdriver operation") which made the ioctl operation return ENODEV rather than ENOIOCTLCMD when a subdriver TIOCMIWAIT implementation is missing. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/usb-serial.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 4753c005cfb6..5f6b1ff9d29e 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -408,7 +408,7 @@ static int serial_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg) { struct usb_serial_port *port = tty->driver_data; - int retval = -ENODEV; + int retval = -ENOIOCTLCMD; dev_dbg(tty->dev, "%s - cmd 0x%.4x\n", __func__, cmd); @@ -420,8 +420,6 @@ static int serial_ioctl(struct tty_struct *tty, default: if (port->serial->type->ioctl) retval = port->serial->type->ioctl(tty, cmd, arg); - else - retval = -ENOIOCTLCMD; } return retval; -- cgit v1.2.3 From 9eecf22d2b375b9064a20421c6c307b760b03d46 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Thu, 6 Jun 2013 13:32:47 +0200 Subject: USB: whiteheat: fix broken port configuration When configuring the port (e.g. set_termios) the port minor number rather than the port number was used in the request (and they only coincide for minor number 0). Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/whiteheat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index b9fca3586d74..347caad47a12 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -649,7 +649,7 @@ static void firm_setup_port(struct tty_struct *tty) struct whiteheat_port_settings port_settings; unsigned int cflag = tty->termios.c_cflag; - port_settings.port = port->number + 1; + port_settings.port = port->number - port->serial->minor + 1; /* get the byte size */ switch (cflag & CSIZE) { -- cgit v1.2.3 From b8a24e6281d37243c06b9497dcbfaa98c1e2ad35 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Thu, 6 Jun 2013 12:57:24 +0200 Subject: USB: option: blacklist network interface on Huawei E1820 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The mode used by Windows for the Huawei E1820 will use the same ff/ff/ff class codes for both serial and network functions. Reported-by: Graham Inggs Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 93d02bc4eb52..66314c3b6d1a 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -593,6 +593,8 @@ static const struct usb_device_id option_ids[] = { .driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist }, + { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x14ac, 0xff, 0xff, 0xff), /* Huawei E1820 */ + .driver_info = (kernel_ulong_t) &net_intf1_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist }, { USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0xff, 0xff) }, -- cgit v1.2.3 From 73228a0538a70ebc4547bd09dee8971360dc1d87 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 5 Jun 2013 15:26:27 -0500 Subject: USB: option,zte_ev: move most ZTE CDMA devices to zte_ev Per some ZTE Linux drivers I found for the AC2716, the following patch moves most ZTE CDMA devices from option to zte_ev. The blacklist stuff that option does is not required with zte_ev, because it doesn't implement any of the send_setup hooks which the blacklist suppressed. I did not move the 2718 over because I could not find any ZTE Linux drivers for that device, nor even any Windows drivers. Signed-off-by: Dan Williams Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 24 +----------------------- drivers/usb/serial/zte_ev.c | 24 +++++++++++++++++++++--- 2 files changed, 22 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 66314c3b6d1a..bd4323ddae1a 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -250,13 +250,7 @@ static void option_instat_callback(struct urb *urb); #define ZTE_PRODUCT_MF622 0x0001 #define ZTE_PRODUCT_MF628 0x0015 #define ZTE_PRODUCT_MF626 0x0031 -#define ZTE_PRODUCT_CDMA_TECH 0xfffe -#define ZTE_PRODUCT_AC8710 0xfff1 -#define ZTE_PRODUCT_AC2726 0xfff5 -#define ZTE_PRODUCT_AC8710T 0xffff #define ZTE_PRODUCT_MC2718 0xffe8 -#define ZTE_PRODUCT_AD3812 0xffeb -#define ZTE_PRODUCT_MC2716 0xffed #define BENQ_VENDOR_ID 0x04a5 #define BENQ_PRODUCT_H10 0x4068 @@ -495,18 +489,10 @@ static const struct option_blacklist_info zte_k3765_z_blacklist = { .reserved = BIT(4), }; -static const struct option_blacklist_info zte_ad3812_z_blacklist = { - .sendsetup = BIT(0) | BIT(1) | BIT(2), -}; - static const struct option_blacklist_info zte_mc2718_z_blacklist = { .sendsetup = BIT(1) | BIT(2) | BIT(3) | BIT(4), }; -static const struct option_blacklist_info zte_mc2716_z_blacklist = { - .sendsetup = BIT(1) | BIT(2) | BIT(3), -}; - static const struct option_blacklist_info huawei_cdc12_blacklist = { .reserved = BIT(1) | BIT(2), }; @@ -799,7 +785,6 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_INTERFACE_CLASS(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_1012, 0xff) }, { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) }, { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) }, - { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6000)}, /* ZTE AC8700 */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6280) }, /* BP3-USB & BP3-EXT HSDPA */ @@ -1201,16 +1186,9 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0178, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_CDMA_TECH, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC2726, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AC8710T, 0xff, 0xff, 0xff) }, + /* NOTE: most ZTE CDMA devices should be driven by zte_ev, not option */ { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2718, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_mc2718_z_blacklist }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_AD3812, 0xff, 0xff, 0xff), - .driver_info = (kernel_ulong_t)&zte_ad3812_z_blacklist }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, ZTE_PRODUCT_MC2716, 0xff, 0xff, 0xff), - .driver_info = (kernel_ulong_t)&zte_mc2716_z_blacklist }, { USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x01) }, { USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x02, 0x05) }, { USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0xff, 0x86, 0x10) }, diff --git a/drivers/usb/serial/zte_ev.c b/drivers/usb/serial/zte_ev.c index 870e01e24481..fca4c752a4ed 100644 --- a/drivers/usb/serial/zte_ev.c +++ b/drivers/usb/serial/zte_ev.c @@ -273,11 +273,29 @@ static void zte_ev_usb_serial_close(struct usb_serial_port *port) } static const struct usb_device_id id_table[] = { - { USB_DEVICE(0x19d2, 0xffff) }, /* AC8700 */ - { USB_DEVICE(0x19d2, 0xfffe) }, - { USB_DEVICE(0x19d2, 0xfffd) }, /* MG880 */ + /* AC8710, AC8710T */ + { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xffff, 0xff, 0xff, 0xff) }, + /* AC8700 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xfffe, 0xff, 0xff, 0xff) }, + /* MG880 */ + { USB_DEVICE(0x19d2, 0xfffd) }, + { USB_DEVICE(0x19d2, 0xfffc) }, + { USB_DEVICE(0x19d2, 0xfffb) }, + /* AC2726, AC8710_V3 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xfff1, 0xff, 0xff, 0xff) }, + { USB_DEVICE(0x19d2, 0xfff6) }, + { USB_DEVICE(0x19d2, 0xfff7) }, + { USB_DEVICE(0x19d2, 0xfff8) }, + { USB_DEVICE(0x19d2, 0xfff9) }, + { USB_DEVICE(0x19d2, 0xffee) }, + /* AC2716, MC2716 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xffed, 0xff, 0xff, 0xff) }, + /* AD3812 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x19d2, 0xffeb, 0xff, 0xff, 0xff) }, + { USB_DEVICE(0x19d2, 0xffec) }, { USB_DEVICE(0x05C6, 0x3197) }, { USB_DEVICE(0x05C6, 0x6000) }, + { USB_DEVICE(0x05C6, 0x9008) }, { }, }; MODULE_DEVICE_TABLE(usb, id_table); -- cgit v1.2.3 From 7cd8407d53ef5fb0280fcbe34f42311472f90feb Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 5 Jun 2013 14:01:19 +0200 Subject: ACPI / PM: Do not execute _PS0 for devices without _PSC during initialization Commit b378549 (ACPI / PM: Do not power manage devices in unknown initial states) added code to force devices without _PSC, but having _PS0 defined in the ACPI namespace, into ACPI power state D0 by executing _PS0 for them. That turned out to break Toshiba P870-303, however, so revert that code. References: https://bugzilla.kernel.org/show_bug.cgi?id=58201 Reported-and-tested-by: Jerome Cantenot Tracked-down-by: Lan Tianyu Cc: 3.9+ Signed-off-by: Rafael J. Wysocki --- drivers/acpi/device_pm.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index bc493aa3af19..318fa32a141e 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -278,11 +278,13 @@ int acpi_bus_init_power(struct acpi_device *device) if (result) return result; } else if (state == ACPI_STATE_UNKNOWN) { - /* No power resources and missing _PSC? Try to force D0. */ + /* + * No power resources and missing _PSC? Cross fingers and make + * it D0 in hope that this is what the BIOS put the device into. + * [We tried to force D0 here by executing _PS0, but that broke + * Toshiba P870-303 in a nasty way.] + */ state = ACPI_STATE_D0; - result = acpi_dev_pm_explicit_set(device, state); - if (result) - return result; } device->power.state = state; return 0; -- cgit v1.2.3 From bcc567e3115055a9cc256183d72864f01286be22 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 23 May 2013 14:29:53 +0300 Subject: dmatest: do not allow to interrupt ongoing tests When user interrupts ongoing transfers the dmatest may end up with console lockup, oops, or data mismatch. This patch prevents user to abort any ongoing test. Documentation is updated accordingly. Signed-off-by: Andy Shevchenko Reported-by: Will Deacon Tested-by: Will Deacon Signed-off-by: Vinod Koul --- drivers/dma/dmatest.c | 45 +++++++++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c index d8ce4ecfef18..e88ded2c8d2f 100644 --- a/drivers/dma/dmatest.c +++ b/drivers/dma/dmatest.c @@ -716,8 +716,7 @@ static int dmatest_func(void *data) } dma_async_issue_pending(chan); - wait_event_freezable_timeout(done_wait, - done.done || kthread_should_stop(), + wait_event_freezable_timeout(done_wait, done.done, msecs_to_jiffies(params->timeout)); status = dma_async_is_tx_complete(chan, cookie, NULL, NULL); @@ -997,7 +996,6 @@ static void stop_threaded_test(struct dmatest_info *info) static int __restart_threaded_test(struct dmatest_info *info, bool run) { struct dmatest_params *params = &info->params; - int ret; /* Stop any running test first */ __stop_threaded_test(info); @@ -1012,13 +1010,23 @@ static int __restart_threaded_test(struct dmatest_info *info, bool run) memcpy(params, &info->dbgfs_params, sizeof(*params)); /* Run test with new parameters */ - ret = __run_threaded_test(info); - if (ret) { - __stop_threaded_test(info); - pr_err("dmatest: Can't run test\n"); + return __run_threaded_test(info); +} + +static bool __is_threaded_test_run(struct dmatest_info *info) +{ + struct dmatest_chan *dtc; + + list_for_each_entry(dtc, &info->channels, node) { + struct dmatest_thread *thread; + + list_for_each_entry(thread, &dtc->threads, node) { + if (!thread->done) + return true; + } } - return ret; + return false; } static ssize_t dtf_write_string(void *to, size_t available, loff_t *ppos, @@ -1091,22 +1099,10 @@ static ssize_t dtf_read_run(struct file *file, char __user *user_buf, { struct dmatest_info *info = file->private_data; char buf[3]; - struct dmatest_chan *dtc; - bool alive = false; mutex_lock(&info->lock); - list_for_each_entry(dtc, &info->channels, node) { - struct dmatest_thread *thread; - - list_for_each_entry(thread, &dtc->threads, node) { - if (!thread->done) { - alive = true; - break; - } - } - } - if (alive) { + if (__is_threaded_test_run(info)) { buf[0] = 'Y'; } else { __stop_threaded_test(info); @@ -1132,7 +1128,12 @@ static ssize_t dtf_write_run(struct file *file, const char __user *user_buf, if (strtobool(buf, &bv) == 0) { mutex_lock(&info->lock); - ret = __restart_threaded_test(info, bv); + + if (__is_threaded_test_run(info)) + ret = -EBUSY; + else + ret = __restart_threaded_test(info, bv); + mutex_unlock(&info->lock); } -- cgit v1.2.3 From ea7f665612fcc73da6b7698f468cd5fc03a30d47 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 8 Jun 2013 02:55:07 +0200 Subject: Revert "ACPI / scan: do not match drivers against objects having scan handlers" Commit 9f29ab11ddbf ("ACPI / scan: do not match drivers against objects having scan handlers") introduced a boot regression on Tony's ia64 HP rx2600. Tony says: "It panics with the message: Kernel panic - not syncing: Unable to find SBA IOMMU: Try a generic or DIG kernel [...] my problem comes from arch/ia64/hp/common/sba_iommu.c where the code in sba_init() says: acpi_bus_register_driver(&acpi_sba_ioc_driver); if (!ioc_list) { but because of this change we never managed to call ioc_init() so ioc_list doesn't get set up, and we die." Revert it to avoid this breakage and we'll fix the problem it attempted to address later. Reported-by: Tony Luck Cc: 3.9+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Linus Torvalds --- drivers/acpi/scan.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 90c5759e1355..44225cb15f3a 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -740,10 +740,6 @@ static int acpi_bus_match(struct device *dev, struct device_driver *drv) struct acpi_device *acpi_dev = to_acpi_device(dev); struct acpi_driver *acpi_drv = to_acpi_driver(drv); - /* Skip ACPI device objects with scan handlers attached. */ - if (acpi_dev->handler) - return 0; - return acpi_dev->flags.match_driver && !acpi_match_device_ids(acpi_dev, acpi_drv->ids); } -- cgit v1.2.3 From d94ea3f6d21e8b4398285516cc307c81d7374ec9 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Thu, 6 Jun 2013 14:11:38 +0100 Subject: irqchip: Return -EPERM for reserved IRQs The irqdomain core will report a log message for any attempted map call that fails unless the error code is -EPERM. This patch changes the Versatile irq controller drivers to use -EPERM because it is normal for a subset of the IRQ inputs to be marked as reserved on the various Versatile platforms. Signed-off-by: Grant Likely --- drivers/irqchip/irq-versatile-fpga.c | 2 +- drivers/irqchip/irq-vic.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c index 065b7a31a478..47a52ab580d8 100644 --- a/drivers/irqchip/irq-versatile-fpga.c +++ b/drivers/irqchip/irq-versatile-fpga.c @@ -119,7 +119,7 @@ static int fpga_irqdomain_map(struct irq_domain *d, unsigned int irq, /* Skip invalid IRQs, only register handlers for the real ones */ if (!(f->valid & BIT(hwirq))) - return -ENOTSUPP; + return -EPERM; irq_set_chip_data(irq, f); irq_set_chip_and_handler(irq, &f->chip, handle_level_irq); diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c index 884d11c7355f..2bbb00404cf5 100644 --- a/drivers/irqchip/irq-vic.c +++ b/drivers/irqchip/irq-vic.c @@ -197,7 +197,7 @@ static int vic_irqdomain_map(struct irq_domain *d, unsigned int irq, /* Skip invalid IRQs, only register handlers for the real ones */ if (!(v->valid_sources & (1 << hwirq))) - return -ENOTSUPP; + return -EPERM; irq_set_chip_and_handler(irq, &vic_chip, handle_level_irq); irq_set_chip_data(irq, v->base); set_irq_flags(irq, IRQF_VALID | IRQF_PROBE); -- cgit v1.2.3