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path: root/drivers/ide/ide-dma.c
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2008-04-28ide: remove ->dma_prdtable field from ide_hwif_tBartlomiej Zolnierkiewicz
* Use 'hwif->dma_base + {4,8}' instead of hwif->dma_prdtable in {ide,scc}_dma_setup(). * Remove no longer needed ->dma_prdtable field from ide_hwif_t. While at it: * Use ATA_DMA_TABLE_OFS define. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28ide: remove ->dma_vendor{1,3} fields from ide_hwif_tBartlomiej Zolnierkiewicz
* Use 'hwif->dma_base + {1,3}' instead of hwif->dma_vendor{1,3} in pdc202xx_new host driver. * Remove no longer needed ->dma_vendor{1,3} fields from ide_hwif_t. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: constify struct ide_dma_opsBartlomiej Zolnierkiewicz
* Export ide_dma_exec_cmd() and __ide_dma_test_irq(). * Constify struct ide_dma_ops. * Always set hwif->dma_ops to &sff_dma_ops in ide_setup_dma() (it is later overriden by ide_init_port() if needed) and drop 'const struct ide_port_info *d' argument. While at it: * Rename __ide_dma_test_irq() to ide_dma_test_irq(). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_dma_ops (take 3)Bartlomiej Zolnierkiewicz
Add struct ide_dma_ops and convert core code + drivers to use it. While at it: * Drop "ide_" prefix from ->ide_dma_end and ->ide_dma_test_irq methods. * Drop "ide_" "infixes" from DMA methods. * au1xxx-ide.c: - use auide_dma_{test_irq,end}() directly in auide_dma_timeout() * pdc202xx_old.c: - drop "old_" "infixes" from DMA methods * siimage.c: - add siimage_dma_test_irq() helper - print SATA warning in siimage_init_one() * Remove no longer needed ->init_hwif implementations. v2: * Changes based on review from Sergei: - s/siimage_ide_dma_test_irq/siimage_dma_test_irq/ - s/drive->hwif/hwif/ in idefloppy_pc_intr(). - fix patch description w.r.t. au1xxx-ide changes - fix au1xxx-ide build - fix naming for cmd64*_dma_ops - drop "ide_" and "old_" infixes - s/hpt3xxx_dma_ops/hpt37x_dma_ops/ - s/hpt370x_dma_ops/hpt370_dma_ops/ - use correct DMA ops for HPT302/N, HPT371/N and HPT374 - s/it821x_smart_dma_ops/it821x_pass_through_dma_ops/ v3: * Two bugs slipped in v2 (noticed by Sergei): - use correct DMA ops for HPT374 (for real this time) - handle HPT370/HPT370A properly Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: cleanup ide_setup_dma()Bartlomiej Zolnierkiewicz
* There is no need to call ide_release_dma_engine(). * Move the code up to (and including) ide_allocate_dma_engine() call to the callers of ide_setup_dma(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: export ide_allocate_dma_engine()Bartlomiej Zolnierkiewicz
Export ide_allocate_dma_engine() and use it in trm290 host driver. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: don't display "BIOS" settings in ide_setup_dma()Bartlomiej Zolnierkiewicz
Nowadays BIOS info is not very useful and only confuses users since: - IDE always tries to use DMA - BIOS info may not be accurate with modular IDE/libata Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove ->cds field from ide_hwif_t (take 2)Bartlomiej Zolnierkiewicz
* Use hwif->name instead of cds->name in ide_allocate_dma_engine(). * Use pci_name(dev) instead of cds->name in init_dma_pdc202xx(). * Remove no longer needed ->cds field from ide_hwif_t. v2: * scc_pata.c also needs to be updated now (noticed by Stephen Rothwell). There should be no functional changes caused by this patch. Cc: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Cc: Akira Iguchi <akira2.iguchi@toshiba.co.jp> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove ide_dma_iobase()Bartlomiej Zolnierkiewicz
* ide_mapped_mmio_dma() and ide_iomio_dma() are called only by ide_dma_iobase() so inline them there. * ide_dma_iobase() is called only by ide_setup_dma() so inline it there. * Setup hwif->extra_base also if hwif->mmio flag is set. There should be no functional changes casued by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove ->extra field from struct ide_port_infoBartlomiej Zolnierkiewicz
Always setup hwif->extra_base in ide_iomio_dma() and remove no longer needed ->extra field from struct ide_port_info. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ [bart: fix checkpatch.pl errors in ide-lib.c and ppc/mpc8xx.c while at it] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: manage resources for PCI devices in ide_pci_enable() (take 3)Bartlomiej Zolnierkiewicz
* Reserve PCI BARs 0-3 (0-1 for single port controllers) in ide_pci_enable() and remove ide_hwif_request_regions() call from ide_device_add_all() (also cleanup resource management in scc_pata host driver). * Fix handling of PCI BAR 4 in ide_pci_enable(), then cleanup ide_iomio_dma() (+ init_hwif_trm290() in trm290 host driver) and remove ide_release[_iomio]_dma(). v2: * Fixup trm290 host driver. v3: * Because of scc_pata host driver changes we need to call pci_request_selected_regions() also in setup_mmio_scc(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: add struct ide_port_ops (take 2)Bartlomiej Zolnierkiewicz
* Move hooks for port/host specific methods from ide_hwif_t to 'struct ide_port_ops'. * Add 'const struct ide_port_ops *port_ops' to 'struct ide_port_info' and ide_hwif_t. * Update host drivers and core code accordingly. While at it: * Rename ata66_*() cable detect functions to *_cable_detect() to match the standard naming. (Suggested by Sergei Shtylyov) v2: * Fix build for bast-ide. (Noticed by Andrew Morton) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: sanitize handling of IDE_HFLAG_NO_SET_MODE host flagBartlomiej Zolnierkiewicz
* Check for IDE_HFLAG_NO_SET_MODE host flag in ide_set_pio(), ide_set_[pio,dma]_mode(), ide_set_xfer_rate() and set_pio_mode(). * Remove no longer needed IDE_HFLAG_NO_SET_MODE host flag checking from ide_tune_dma(). * Remove superfluous ->set_pio_mode checking from do_special(). This is a part of preparations for adding 'struct ide_port_ops'. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-26ide: remove IDE_HFLAG_CY82C693 host flagBartlomiej Zolnierkiewicz
Sergei suggested that it shouldn't be necessary + it had no effect anyway since ide_id_dma_bug() is called earlier in ide_tune_dma(). Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-03-07ide: fix enabling DMA on it821x in "smart" modeBartlomiej Zolnierkiewicz
ide_tune_dma() should return '1' if IDE_HFLAG_NO_SET_MODE host flag is set. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-26ide: remove stale comments from ide-dma.c (take 2)Bartlomiej Zolnierkiewicz
- ide-dma.c is not a separate module - ide-dma.c is not PCI specific anymore - DMA is enabled by default nowadays - link for Intel Zappa BIOS is dead etc. v2: * Some comments should be preserved. (Noticed by Mark Lord) Cc: Mark Lord <liml@rtr.ca> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-11ide: introduce CONFIG_BLK_DEV_IDEDMA_SFF optionSergei Shtylyov
Introduce new option CONFIG_BLK_DEV_IDEDMA_SFF for non-PCI SFF-8038i compatible bus mastering IDE controllers (which there are a few known), thus fixing a hack made for Palmchip BK3710 controller... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Anton Salnikov <asalnikov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-06ide: add ide_read_[alt]status() inline helpersBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-02ide: move check_dma_crc() to ide-dma.cBartlomiej Zolnierkiewicz
* Move check_dma_crc() to ide-dma.c and add inline version for CONFIG_BLK_DEV_IDEDMA=n case. * Rename check_dma_crc() to ide_check_dma_crc(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: update/add my CopyrightsBartlomiej Zolnierkiewicz
The last years stuff and a trip down memory lane... Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: delete filenames/versions from commentsBartlomiej Zolnierkiewicz
Delete filenames/versions from comments. I'm leaving decisions about adding DRV_VERSION defines and MODULE_VERSION()-s to maintainers of the respective drivers. While at it: * Remove unused VERSION define from ide.c. * Remove unused/stale DRV_VERSION define from au1xxx-ide.c. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: use ide_build_sglist() and ide_destroy_dmatable() in non-PCI host driversBartlomiej Zolnierkiewicz
* Make ide_build_sglist() and ide_destroy_dmatable() available also when CONFIG_BLK_DEV_IDEDMA_PCI=n. * Use ide_build_sglist() and ide_destroy_dmatable() in {ics,au1xxx-}ide.c and remove no longer needed {ics,au}ide_build_sglist(). There should be no functionality changes caused by this patch. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: switch to DMA-mapping APIBartlomiej Zolnierkiewicz
* pci_map_sg() -> dma_map_sg() in ide_build_sglist(). * pci_unmap_sg() -> dma_unmap_sg() in ide_destroy_dmatable(). There should be no functionality changes caused by this patch except for blackfin arch whose dma_[un]map_sg() implementation differs from pci_[un]map_sg() one (on s390 arch there is no PCI, on avr32 and h8300 archs PCI is currently unsupported, on m32r arch PCI support depends on BROKEN, on m68k arch PCI support depends on HADES which in turn depends on BROKEN, on all other archs dma_[un]map_sg() functionality matches with pci_[un]map_sg() one). blackfin behavior change was ack-ed by Bryan Wu. Cc: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: keep pointer to struct device instead of struct pci_dev in ide_hwif_tBartlomiej Zolnierkiewicz
Keep pointer to struct device instead of struct pci_dev in ide_hwif_t. While on it: * Use *dev->dma_mask instead of pci_dev->dma_mask in ide_toggle_bounce(). There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: use ide_destroy_dmatable() instead of pci_unmap_sg() (take 2)Bartlomiej Zolnierkiewicz
Use ide_destroy_dmatable() in: * ide-dma.c::ide_build_dmatable() * sgiioc4.c::sgiioc4_build_dma_table() * pmac.c::pmac_ide_{build,destroy}_dmatable() There should be no functionality changes caused by this patch. v2: * pmac.c build fix from Andrew Morton. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: remove BUG_ON() from ide_build_sglist()Bartlomiej Zolnierkiewicz
do_rw_taskfile() has been fixed to check the return value of ->dma_setup method so this BUG_ON() is no longer needed. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: ide_setup_dma() assumes 8 portsSergei Shtylyov
According to http://marc.info/?l=linux-ide&m=114346138611631, the drivers must always register 8 DMA ports with ide_setup_dma(), so its last argument is not needed. While at it, kill some useless parens in that function... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01trm290: cannot call ide_setup_dma()Sergei Shtylyov
The TRM-290 chip is *not* SFF-8038i compatible and therefore can *not* call ide_setup_dma() -- fix this and also cleanup the code a bit... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-02-01ide: unexport ide_dma_onAdrian Bunk
ide_dma_on can be unexported. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: task_end_request() fixTejun Heo
task_end_request() modified to always call ide_end_drive_cmd() for taskfile requests. Previously, ide_end_drive_cmd() was called only when IDE_TFLAG_FLAGGED was set. Also, ide_dma_intr() is modified to use task_end_request(). Enables TASKFILE ioctls to get valid register outputs on successful completion. Bart: - ported it over recent IDE changes Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: merge ->dma_host_{on,off} methods into ->dma_host_set methodBartlomiej Zolnierkiewicz
Merge ->dma_host_{on,off} methods into ->dma_host_set method which takes 'int on' argument. There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: move drive->using_dma check to callers of ->dma_host_on methodBartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26ide: remove ->ide_dma_on and ->dma_off_quietly methods from ide_hwif_tBartlomiej Zolnierkiewicz
* Make ide_dma_off_quietly() and __ide_dma_on() always available. * Drop "__" prefix from __ide_dma_on(). * Check for presence of ->dma_host_on instead of ->ide_dma_on. * Convert all users of ->ide_dma_on and ->dma_off_quietly methods to use ide_dma_on() and ide_dma_off_quietly() instead. * Remove no longer needed ->ide_dma_on and ->dma_off_quietly methods from ide_hwif_t. * Make ide_dma_on() void. There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-26cy82c693: add ->set_dma_mode methodBartlomiej Zolnierkiewicz
* Fix SWDMA/MWDMA masks in cy82c693_chipset. * Add IDE_HFLAG_CY82C693 host flag and use it in ide_tune_dma() to check whether the DMA should be enabled even if ide_max_dma_mode() fails. * Convert cy82c693_dma_enable() to become cy82c693_set_dma_mode() and remove no longer needed cy82c693_ide_dma_on(). Then set IDE_HFLAG_CY82C693 instead of IDE_HFLAG_TRUST_BIOS_FOR_DMA in cy82c693_chipset. * Bump driver version. As a result of this patch cy82c693 driver will configure and use DMA on all SWDMA0-2 and MWDMA0-2 capable ATA devices instead of relying on BIOS. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: remove redundant DMA blacklist check from __ide_dma_on()Bartlomiej Zolnierkiewicz
->ide_dma_on method is called only after successful ide_dma_check() call (ide_dma_check()->ide_tune_dma() checks DMA blacklist) or if drive->using_dma has been previously enabled for a given device (->ide_dma_on is the only place which sets drive->using_dma to '1'). There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: cleanup ide_set_dma()Bartlomiej Zolnierkiewicz
* ->dma_off_quietly is always called before ide_set_dma() so the call can be moved inside ide_set_dma(). * ide_dma_check() doesn't touch hardware so ->dma_off_quietly call for 'rc == -1' case is redundant, remove it. * '0' and '-1' are the only values returned by ide_dma_check() so remove dead code for other cases. There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-01-25ide: remove ->dma_master field from ide_hwif_t (take 5)Bartlomiej Zolnierkiewicz
* Convert cmd64x, hpt366 and pdc202xx_old host drivers to use pci_resource_start(hwif->pci_dev, 4) instead of hwif->dma_master. * Remove no longer needed ->dma_master field from ide_hwif_t. v2: * Use the more readable 'hwif->dma_base - (hwif->channel * 8)' instead of pci_resource_start(hwif->pci_dev, 4). v3: * Use hwif->extra_base in hpt366/pdc20xx_old + some cosmetic fixups over v2 (suggested by Sergei). v4: * Correct offsets in hpt3xxn_set_clock(). v5: * Use hwif->extra_base in hpt366 for _real_ this time. (Noticed by Sergei) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-12-12ide: remove dead code from __ide_dma_test_irq()Bartlomiej Zolnierkiewicz
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-12-12ide: DMA reporting and validity checking fixes (take 3)Bartlomiej Zolnierkiewicz
* ide_xfer_verbose() fixups: - beautify returned mode names - fix PIO5 reporting - make it return 'const char *' * Change printk() level from KERN_DEBUG to KERN_INFO in ide_find_dma_mode(). * Add ide_id_dma_bug() helper based on ide_dma_verbose() to check for invalid DMA info in identify block. * Use ide_id_dma_bug() in ide_tune_dma() and ide_driveid_update(). As a result DMA won't be tuned or will be disabled after tuning if device reports inconsistent info about enabled DMA mode (ide_dma_verbose() does the same checks while the IDE device is probed by ide-{cd,disk} device driver). * Remove no longer needed ide_dma_verbose(). This patch should fix the following problem with out-of-sync IDE messages reported by Nick Warne: hdd: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache<7>hdd: skipping word 93 validity check , UDMA(66) and later debugged by Mark Lord to be caused by: ide_dma_verbose() printk( ... "2048kB Cache"); eighty_ninty_three() printk(KERN_DEBUG "%s: skipping word 93 validity check\n"); ide_dma_verbose() printk(", UDMA(66)" Please note that as a result ide-{cd,disk} device drivers won't report the DMA speed used but this is intended since now DMA mode being used is always reported by IDE core code. v2: * fixes suggested by Randy: - use KERN_CONT for printk()-s in ide-{cd,disk}.c - don't remove argument name from ide_xfer_verbose() declaration v3: * Remove incorrect check for (id->field_valid & 1) from ide_id_dma_bug() (spotted by Sergei). * "XFER SLOW" -> "PIO SLOW" in ide_xfer_verbose() (suggested by Sergei). * Fix ide_find_dma_mode() to report the correct mode ('mode' after being limited by 'req_mode'). Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Nick Warne <nick@ukfsn.org> Cc: Mark Lord <lkml@rtr.ca> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-27ide: add TORiSAN model: CD-ROM CDR_U200 fw: 1.09 to DMA blacklistBartlomiej Zolnierkiewicz
Based on the report from snowbat@gmail.com. Fixes kernel bugzilla bug #9195. Tested-by: snowbat@gmail.com Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05ide: fix IDE_HFLAG_NO_ATAPI_DMA handling in config_drive_for_dma()Bartlomiej Zolnierkiewicz
commit 33c1002ed912ac9dacedd5d5b166da3b72d18460 incorrectly changed return value from '0' to '-1', fix it (ns87415 was the only host driver affected since it uses both IDE_HFLAG_TRUST_BIOS_FOR_DMA and IDE_HFLAG_NO_ATAPI_DMA). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05ide: fix ide_find_dma_mode() to print human-readable infoBartlomiej Zolnierkiewicz
Problem reported by Mikael. Cc: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-20ide: PCI BMDMA initialization fixes (take 2)Bartlomiej Zolnierkiewicz
* Set hwif->dma_base only if allocation of extra ports succeeds. While at it: * Move setting of hwif->dma_{base,master} from ide_{mapped_mmio,iomio}_dma() to ide_setup_dma(). * Rename 'dma_base' argument to 'base' in ide_setup_dma() (to make the code obey 80-columns limit and increase its readability). * Remove stale ide_setup_dma() comment. v2: * Change to allocate hwif->dmatable_cpu before reserving I/O ports missed teardown code (spotted by Sergei). On the second thought this change is actually unnecessary so revert it in v2. * Make ide_release_dma_engine() void and remove needless comment. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-19ide: add IDE_HFLAG_NO_ATAPI_DMA host flagBartlomiej Zolnierkiewicz
Add IDE_HFLAG_NO_ATAPI_DMA host flag and set it in host drivers which don't support ATAPI DMA. Then remove no longer needed hwif->atapi_dma. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: add "hdx=nodma" kernel parameterBartlomiej Zolnierkiewicz
* Add "hdx=nodma" option allowing user to disallow DMA for a given device. * Obsolete "ide=nodma" option. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: remove hwif->autodma and drive->autodmaBartlomiej Zolnierkiewicz
* hpt34x.c: disable DMA masks for HPT345 (hwif->autodma is zero so DMA won't be enabled anyway). * trm290.c: disable IDE_HFLAG_TRUST_BIOS_FOR_DMA flag (hwif->autodma is zero so DMA won't be enabled anyway). * Check noautodma global variable instead of drive->autodma in ide_tune_dma(). This fixes handling of "ide=nodma" kernel parameter for icside, ide-cris, au1xxx-ide, pmac, it821x, jmicron, sgiioc4 and siimage host drivers. * Remove hwif->autodma (it was not checked by IDE core code anyway) and drive->autodma (was set by all host drivers - except HPT345/TRM290 special cases - unless "ide=nodma" was used). While at it: - remove needless printk() from icside.c - remove stale FIXME/comment from ide-probe.c - don't force DMA off if PCI bus-mastering had to be enabled in setup-pci.c (this setting was always later over-ridden by host drivers anyway) Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: unexport ide_tune_dmaAdrian Bunk
static code mustn't be exported. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16ide: remove ->ide_dma_check (take 2)Bartlomiej Zolnierkiewicz
* Add IDE_HFLAG_TRUST_BIOS_FOR_DMA host flag for host drivers that depend on BIOS for programming device/controller for DMA. Set it in cy82c693, generic, ns87415, opti621 and trm290 host drivers. * Add IDE_HFLAG_VDMA host flag for host drivers using VDMA. Set it in cs5520 host driver. * Teach ide_tune_dma() about IDE_HFLAG_TRUST_BIOS_FOR_DMA flag. * Add generic ide_dma_check() helper and remove all open coded ->ide_dma_check implementations. Fix all places checking for presence of ->ide_dma_check hook to check for ->ide_dma_on instead. * Remove no longer needed code from config_drive_for_dma(). * Make ide_tune_dma() static. v2: * Fix config_drive_for_dma() return values. * Fix ide-dma.c build for CONFIG_BLK_DEV_IDEDMA_PCI=n by adding dummy config_drive_for_dma() inline. * Fix IDE_HFLAG_TRUST_BIOS_FOR_DMA handling in ide_dma_check(). * Fix init_hwif_it8213() comment. There should be no functionality changes caused by this patch. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-16IDE: sg chaining supportJens Axboe
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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