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* ide: make ide_unregister() take 'ide_hwif_t *' as an argument (take 2)Bartlomiej Zolnierkiewicz2008-04-271-1/+1
| | | | | | | | | | | | | | | | | * Make ide_unregister() take 'ide_hwif_t *hwif' instead of 'unsigned int index' (hwif->index) as an argument and update all users accordingly. While at it: * Remove unnecessary checks for hwif != NULL from ide-pnp.c::idepnp_remove() and delkin_cb.c::delkin_cb_remove(). * Remove needless hwif->chipset assignment from scc_pata.c::scc_remove(). v2: * Fixup ide_unregister() documentation. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: constify struct ide_dma_opsBartlomiej Zolnierkiewicz2008-04-261-1/+1
| | | | | | | | | | | | | | | | | * 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>
* ide: add struct ide_dma_ops (take 3)Bartlomiej Zolnierkiewicz2008-04-261-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* au1xxx-ide: use ->init_dma methodBartlomiej Zolnierkiewicz2008-04-261-9/+6
| | | | | | | | | | | | * Pass 'ide_hwif_t *hwif' instead of '_auide_hwif *auide' to auide_ddma_init(). * Add 'const struct ide_port_info *d' argument to auide_ddma_init(). * Convert the driver to use ->init_dma method. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* au1xxx-ide: fix MWDMA supportBartlomiej Zolnierkiewicz2008-04-261-47/+2
| | | | | | | | | Always use "fast" MWDMA support and remove dma_{black,white}_list (they were based on completely bogus ->ide_dma_check implementation which didn't set neither the host controller timings nor the device for the desired transfer mode). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: replace remaining __FUNCTION__ occurrencesHarvey Harrison2008-04-261-4/+4
| | | | | | | | | | __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>
* ide: cleanup setting hwif->mmio flagBartlomiej Zolnierkiewicz2008-04-262-4/+1
| | | | | | | | | | It is no longer needed to set hwif->mmio flag to tell IDE layer to not manage resources so cleanup host drivers that used hwif->mmio flag only for this purpose. Ditto for ide_legacy_init_one(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ->noprobe field from ide_hwif_tBartlomiej Zolnierkiewicz2008-04-261-1/+0
| | | | | | | | | | Update IDE PMAC host driver to use drive->noprobe instead of hwif->noprobe and remove hwif->noprobe completely (it is always set to zero now). There should be no functional changes caused by this patch. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add struct ide_port_ops (take 2)Bartlomiej Zolnierkiewicz2008-04-261-7/+9
| | | | | | | | | | | | | | | | | | | | | * 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>
* au1xxx-ide: use ide_find_port()Bartlomiej Zolnierkiewicz2008-04-261-3/+5
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* swarm: use ide_find_port()Bartlomiej Zolnierkiewicz2008-04-261-7/+2
| | | | | Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ->hold field from ide_hwif_t (take 2)Bartlomiej Zolnierkiewicz2008-04-181-3/+0
| | | | | | | | | | ->hold is write-only now, remove it. v2: * v1 missed bast-ide, palm_bk3710, ide-cs and delkin_cb host drivers. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove broken/dangerous HDIO_[UNREGISTER,SCAN]_HWIF ioctls (take 3)Bartlomiej Zolnierkiewicz2008-04-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | hdparm explicitely marks HDIO_[UNREGISTER,SCAN]_HWIF ioctls as DANGEROUS and given the number of bugs we can assume that there are no real users: * DMA has no chance of working because DMA resources are released by ide_unregister() and they are never allocated again. * Since ide_init_hwif_ports() is used for ->io_ports[] setup the ioctls don't work for almost all hosts with "non-standard" (== non ISA-like) layout of IDE taskfile registers (there is a lot of such host drivers). * ide_port_init_devices() is not called when probing IDE devices so: - drive->autotune is never set and IDE host/devices are not programmed for the correct PIO/DMA transfer modes (=> possible data corruption) - host specific I/O 32-bit and IRQ unmasking settings are not applied (=> possible data corruption) - host specific ->port_init_devs method is not called (=> no luck with ht6560b, qd65xx and opti621 host drivers) * ->rw_disk method is not preserved (=> no HPT3xxN chipsets support). * ->serialized flag is not preserved (=> possible data corruption when using icside, aec62xx (ATP850UF chipset), cmd640, cs5530, hpt366 (HPT3xxN chipsets), rz1000, sc1200, dtc2278 and ht6560b host drivers). * ->ack_intr method is not preserved (=> needed by ide-cris, buddha, gayle and macide host drivers). * ->sata_scr[] and sata_misc[] is cleared by ide_unregister() and it isn't initialized again (SiI3112 support needs them). * To issue an ioctl() there need to be at least one IDE device present in the system. * ->cable_detect method is not preserved + it is not called when probing IDE devices so cable detection is broken (however since DMA support is also broken it doesn't really matter ;-). * Some objects which may have already been freed in ide_unregister() are restored by ide_hwif_restore() (i.e. ->hwgroup). * ide_register_hw() may unregister unrelated IDE ports if free ide_hwifs[] slot cannot be found. * When IDE host drivers are modular unregistered port may be re-used by different host driver that owned it first causing subtle bugs. Since we now have a proper warm-plug support remove these ioctls, then remove no longer needed: - ide_register_hw() and ide_hwif_restore() functions - 'init_default' and 'restore' arguments of ide_unregister() - zeroeing of hwif->{dma,extra}_* fields in ide_unregister() As an added bonus IDE core code size shrinks by ~3kB (x86-32). v2: * fix ide_unregister() arguments in cleanup_module() (Andrew Morton). v3: * fix ide_unregister() arguments in palm_bk3710.c. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Pb1200/DBAu1200: fix bad IDE resource sizeSergei Shtylyov2008-04-171-3/+4
| | | | | | | | | | | | The header files for the Pb1200/DBAu1200 boards have wrong definition for the IDE interface's decoded range length -- it should be 512 bytes according to what the IDE driver does. In addition, the IDE platform device claims 1 byte too many for its memory resource -- fix the platform code and the IDE driver in accordance. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Au1200: IDE driver build fixSergei Shtylyov2008-04-171-8/+1
| | | | | | | | | | | | | | | | | | The driver fails to compile with CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA enabled: drivers/ide/mips/au1xxx-ide.c: In function `auide_build_dmatable': drivers/ide/mips/au1xxx-ide.c:256: error: implicit declaration of function `sg_virt' drivers/ide/mips/au1xxx-ide.c:275: error: implicit declaration of function `sg_next' drivers/ide/mips/au1xxx-ide.c:275: warning: assignment makes pointer from integer without a cast Fix this by including <linux/scatterlist.h>. While at it, remove the #include's without which the driver happily builds. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Au1200: kill IDE driver function prototypesSergei Shtylyov2008-04-171-0/+2
| | | | | | | | | | | | | | | | | Fix these warnings emitted when compiling drivers/ide/mips/au1xxx-ide.c: include/asm/mach-au1x00/au1xxx_ide.h:137: warning: 'auide_tune_drive' declared `static' but never defined include/asm/mach-au1x00/au1xxx_ide.h:138: warning: 'auide_tune_chipset' declared `static' but never defined by wiping out the whole "function prototyping" section from the header file <asm-mips/mach-au1x00/au1xxx_ide.h> as it mostly declared functions that are already dead in the IDE driver; move the only useful prototype into the driver. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add IDE_HFLAG_NO_{IO32_BIT,UNMASK_IRQS} host flagsBartlomiej Zolnierkiewicz2008-02-021-2/+1
| | | | | | | | | | | | | | | * Use the same bit for IDE_HFLAG_CS5520 and IDE_HFLAG_VDMA host flags (both are used only by cs5520 host driver currently). * Add IDE_HFLAG_NO_IO32_BIT host flag and use it instead of ->no_io_32bit ide_hwif_t field. * Add IDE_HFLAG_NO_UNMASK_IRQS host flag, then convert dtc2278 and rz1000 host drivers to use it. There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix ide_unregister() usage in host driversBartlomiej Zolnierkiewicz2008-02-021-1/+1
| | | | | | | | | | | | | | bast-ide.c/ide-cs.c/delkin_cb.c: * Don't set 'restore' flag for ide_unregister() when initializing new interface. rapide.c/ide-pnp.c/ide-cs.c/ide_platform.c/au1xxx-ide.c/delkin_cb.c/scc_pata.c: * Don't set 'init_default' and 'restore' flags for ide_unregister() when removing interface. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add 'init_default' and 'restore' arguments to ide_unregister()Bartlomiej Zolnierkiewicz2008-02-021-1/+1
| | | | | | | | | | | | | | | | * Add 'init_default' (flag for calling init_hwif_default()) and 'restore' (flag for calling ide_hwif_restore()) arguments to ide_unregister(). * Update ide_unregister() users to set 'init_default' and 'restore' flags. * No need to set 'init_default' flag in ide_register_hw() if the setup done by init_hwif_default() is going to be overridden by ide_init_port_hw(). * No need to set 'init_default' and 'restore' flags in cleanup_module(). There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add struct ide_port_info instances to legacy host driversBartlomiej Zolnierkiewicz2008-02-022-21/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove 'struct pci_dev *dev' argument from ide_hwif_setup_dma(). * Un-static ide_hwif_setup_dma() and add CONFIG_BLK_DEV_IDEDMA_PCI=n version. * Add 'const struct ide_port_info *d' argument to ide_device_add[_all](). * Factor out generic ports init from ide_pci_setup_ports() to ide_init_port(), move it to ide-probe.c and call it in in ide_device_add_all() instead of ide_pci_setup_ports(). * Move ->mate setup to ide_device_add_all() from ide_port_init(). * Add IDE_HFLAG_NO_AUTOTUNE host flag for host drivers that don't enable ->autotune currently. * Setup hwif->chipset in ide_init_port() but iff pi->chipset is set (to not override setup done by ide_hwif_configure()). * Add ETRAX host handling to ide_device_add_all(). * cmd640.c: set IDE_HFLAG_ABUSE_* also for CONFIG_BLK_DEV_CMD640_ENHANCED=n. * pmac.c: make pmac_ide_setup_dma() return an error value and move DMA masks setup to pmac_ide_setup_device(). * Add 'struct ide_port_info' instances to legacy host drivers, pass them to ide_device_add() calls and then remove open-coded ports initialization. Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* au1xxx-ide: fix ->io_32bit handlingBartlomiej Zolnierkiewicz2008-02-021-2/+1
| | | | | | | The host driver must set hwif's ->no_io_32bit setting not drive's one (ide_port_tune_devices() overrides drive's setting). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: delete filenames/versions from commentsBartlomiej Zolnierkiewicz2008-02-011-3/+0
| | | | | | | | | | | | | | | 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>
* au1xxx-ide/rapide: use hwif->index for ide_unregister()Bartlomiej Zolnierkiewicz2008-02-011-1/+1
| | | | | Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* au1xxx-ide: device tree bugfixBartlomiej Zolnierkiewicz2008-02-011-0/+1
| | | | | | | Add missing hw.dev setup (so hwif->gendev.parent will be set by ide_init_port_hw() to point to the parent device). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use ide_build_sglist() and ide_destroy_dmatable() in non-PCI host driversBartlomiej Zolnierkiewicz2008-02-011-25/+3
| | | | | | | | | | | | | * 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>
* au1xxx-ide: use hwif->devBartlomiej Zolnierkiewicz2008-02-011-9/+6
| | | | | | | | | | | * Setup hwif->dev in au_ide_probe(). * Use hwif->dev instead of ahwif->dev in auide_build_sglist(), auide_build_dmatable(), auide_dma_end() and auide_ddma_init(). * Remove no longer needed 'dev' field from _auide_hwif type. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* au1xxx-ide: use ide_init_port_hw()Bartlomiej Zolnierkiewicz2008-01-261-4/+4
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* au1xxx-ide: au_ide_probe() fixesBartlomiej Zolnierkiewicz2008-01-261-3/+2
| | | | | | | | | | | | * hwif->hold is always set in au_ide_probe() (few lines earlier), no need to set it again * hwif->{channel,select_data,config_data} should be always zero * autotune PIO also if CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA is defined Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* swarm: set hwif->chipsetBartlomiej Zolnierkiewicz2008-01-261-0/+1
| | | | | | | hwif->chipset should be set if the hwif is claimed by host driver. Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: merge ->dma_host_{on,off} methods into ->dma_host_set methodBartlomiej Zolnierkiewicz2008-01-261-7/+2
| | | | | | | | | | 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>
* ide: remove ->ide_dma_on and ->dma_off_quietly methods from ide_hwif_tBartlomiej Zolnierkiewicz2008-01-261-16/+0
| | | | | | | | | | | | | | | | | | | | | * 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>
* au1xxx-ide: add ide_toggle_bounce() callsBartlomiej Zolnierkiewicz2008-01-261-0/+2
| | | | | | | | | | | Add ide_toggle_bounce() call to ->ide_dma_on/->dma_off_quietly methods so they match generic __ide_dma_on()/ide_dma_off_quietly(). Since there is no PCI device 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>
* ide: add IDE_HFLAG_ABUSE_SET_DMA_MODE host flagBartlomiej Zolnierkiewicz2008-01-251-2/+0
| | | | | | | | | | | | | | | | | | | | | | * Add IDE_HFLAG_ABUSE_SET_DMA_MODE host flag and use it to decide what to do with transfer modes < XFER_PIO_0 in ide_set_xfer_rate(). * Set IDE_HFLAG_ABUSE_SET_DMA_MODE in host drivers that need it (aec62xx, amd74xx, cs5520, cs5535, hpt34x, hpt366, pdc202xx_old, serverworks, tc86c001 and via82cxxx) and cleanup ->set_dma_mode methods in host drivers that don't (IDE core code guarantees that ->set_dma_mode will be called only for modes which are present in SWDMA/MWDMA/UDMA masks). While at it: * Add IDE_HFLAGS_HPT34X/HPT3XX/PDC202XX/SVWKS define in hpt34x/hpt366/pdc202xx_old/serverworks host driver. 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>
* [SG] Update drivers to use sg helpersJens Axboe2007-10-221-4/+2
| | | | Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* au1xxx-ide: set ->autotune and ->no_io_32bit also for the slave deviceBartlomiej Zolnierkiewicz2007-10-201-1/+3
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove write-only hwif->hwBartlomiej Zolnierkiewicz2007-10-202-11/+8
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_device_add()Bartlomiej Zolnierkiewicz2007-10-202-4/+6
| | | | | | | | | | | | | | | | | | | | * Add ide_device_add() helper and convert host drivers to use it instead of open-coded variants. * Make ide_pci_setup_ports() and do_ide_setup_pci_device() take 'u8 *idx' argument instead of 'ata_index_t *index'. * Remove no longer needed ata_index_t. * Unexport probe_hwif_init() and make it static. * Unexport ide_proc_register_port(). There should be no functionality changes caused by this patch (sgiioc4.c: ide_proc_register_port() requires hwif->present to be set and it won't be set if probe_hwif_init() fails). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add IDE_HFLAG_NO_ATAPI_DMA host flagBartlomiej Zolnierkiewicz2007-10-191-3/+0
| | | | | | | 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>
* ide: remove hwif->autodma and drive->autodmaBartlomiej Zolnierkiewicz2007-10-161-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* ide: remove ->ide_dma_check (take 2)Bartlomiej Zolnierkiewicz2007-10-161-11/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* au1xxx-ide: use ide_tune_dma()Bartlomiej Zolnierkiewicz2007-10-161-14/+22
| | | | | | | | | | | | | | | * Remove needless setting of drive->using_dma from auide_dma_check(). * Split off auide_mdma_filter() from auide_dma_check(). * Use ide_tune_dma() in auide_dma_check(), this fixes following issues: - device's DMA capability bit not being checked - device not being checked against generic DMA blacklist - transfer mode not being set on device/host * Add PIO autotune fallback to auide_dma_check(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* IDE: sg chaining supportJens Axboe2007-10-161-1/+1
| | | | | Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ide: move ide_config_drive_speed() calls to upper layers (take 2)Bartlomiej Zolnierkiewicz2007-10-131-21/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Convert {ide_hwif_t,ide_pci_device_t}->host_flag to be u16. * Add IDE_HFLAG_POST_SET_MODE host flag to indicate the need to program the host for the transfer mode after programming the device. Set it in au1xxx-ide, amd74xx, cs5530, cs5535, pdc202xx_new, sc1200, pmac and via82cxxx host drivers. * Add IDE_HFLAG_NO_SET_MODE host flag to indicate the need to completely skip programming of host/device for the transfer mode ("smart" hosts). Set it in it821x host driver and check it in ide_tune_dma(). * Add ide_set_pio_mode()/ide_set_dma_mode() helpers and convert all direct ->set_pio_mode/->speedproc users to use these helpers. * Move ide_config_drive_speed() calls from ->set_pio_mode/->speedproc methods to callers. * Rename ->speedproc method to ->set_dma_mode, make it void and update all implementations accordingly. * Update ide_set_xfer_rate() comments. * Unexport ide_config_drive_speed(). v2: * Fix issues noticed by Sergei: - export ide_set_dma_mode() instead of moving ->set_pio_mode abuse wrt to setting DMA modes from sc1200_set_pio_mode() to do_special() - check IDE_HFLAG_NO_SET_MODE in ide_tune_dma() - check for (hwif->set_pio_mode) == NULL in ide_set_pio_mode() - check for (hwif->set_dma_mode) == NULL in ide_set_dma_mode() - return -1 from ide_set_{pio,dma}_mode() if ->set_{pio,dma}_mode == NULL - don't set ->set_{pio,dma}_mode on it821x in "smart" mode - fix build problem in pmac.c - minor fixes in au1xxx-ide.c/cs5530.c/siimage.c - improve patch description Changes in behavior caused by this patch: - HDIO_SET_PIO_MODE ioctl would now return -ENOSYS for attempts to change PIO mode if it821x controller is in "smart" mode - removal of two debugging printk-s (from cs5530.c and sc1200.c) - transfer modes 0x00-0x07 passed from user space may be programmed twice on the device (not really an issue since 0x00 is not supported correctly by any host driver ATM, 0x01 is not supported at all and 0x02-0x07 are invalid) Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* au1xxx: fix au1xxx_set_pio_mode()Bartlomiej Zolnierkiewicz2007-10-131-4/+3
| | | | | | | | Set transfer mode on the device before programming the host controller for the new timings (matches what auide_tune_chipset() is doing wrt DMA modes). Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use only ->set_pio_mode method for programming PIO modes (take 2)Bartlomiej Zolnierkiewicz2007-10-111-5/+0
| | | | | | | | | | | | | Use ->set_pio_mode method to program PIO modes in ide_set_xfer_rate() (the only place which used ->speedproc to program PIO modes) and remove handling of PIO modes from all ->speedproc implementations. v2: * Fix pmac_ide_tune_chipset() comment. There should be no functionality changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_set{_max}_pio() (take 4)Bartlomiej Zolnierkiewicz2007-10-111-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add IDE_HFLAG_ABUSE_{PREFETCH,FAST_DEVSEL,DMA_MODES} flags and set them in ht6560, cmd640, cmd64x and sc1200 host drivers. * Add set_pio_mode_abuse() for checking if host driver has a non-standard ->tuneproc() implementation and use it in do_special(). * Add ide_set_pio() for setting PIO mode (it uses hwif->pio_mask to find the maximum PIO mode supported by the host), also add ide_set_max_pio() wrapper for ide_set_pio() to use for auto-tuning. Convert users of ->tuneproc to use ide_set{_max}_pio() where possible. This leaves only do_special(), set_using_pio(), ide_hwif_restore() and ide_set_pio() as a direct users of ->tuneproc. * Remove no longer needed ide_get_best_pio_mode() calls and printk-s reporting PIO mode selected from ->tuneproc implementations. * Rename ->tuneproc hook to ->set_pio_mode and make 'pio' argument const. * Remove stale comment from ide_config_drive_speed(). v2: * Fix "ata_" prefix (Noticed by Jeff). v3: * Minor cleanups/fixups per Sergei's suggestions. v4: * Fix compile problem in drivers/ide/pci/cmd640.c (Noticed by Andrew Morton). * Improve some ->set_pio_mode comments. Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: move ide_rate_filter() calls to the upper layer (take 2)Bartlomiej Zolnierkiewicz2007-10-111-3/+1
| | | | | | | | | | | | | | | | * Move ide_rate_filter() calls from host drivers to IDE core. * Make ide_rate_filter() static. * Make 'speed' argument of ->speedproc const. v2: * Fix it8213_tune_chipset() comment. 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>
* ide: add missing ide_rate_filter() calls to ->speedproc()-sBartlomiej Zolnierkiewicz2007-10-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Fix icside, cris-ide, au1xxx-ide, amd74xx, via82cxxx and pmac host drivers to use ide_rate_filter(). This results in the following modes (from user requests) being clipped down: - invalid modes (values 0x46-0xFF) [ for all hosts ] - unsupported by a host UDMA modes [ for hosts which support UDMA] - all UDMA modes and MWDMA3-4 modes [ for hosts which don't support UDMA ] - invalid modes (values 0x25-0x39) [ for hosts which don't support UDMA ] * Host driver specific changes in behavior: icside: - no change cris-ide - clip unsupported UDMA3-6 modes down - fix BUG() on trying to set unsupported UDMA3-6 modes au1xxx-ide/pmac - clip unsupported UDMA modes down amd74xx/via82cxxx - clip unsupported UDMA modes down - fix random PIO timings being set for unsupported/invalid modes - fix unsupported/invalid modes being set on the device * While at it remove no longer needed checks from pmac.c driver. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add PIO masksBartlomiej Zolnierkiewicz2007-07-201-0/+2
| | | | | | | | | | | | | * Add ATA_PIO[0-6] defines to <linux/ata.h>. * Add ->pio_mask field to ide_pci_device_t and ide_hwif_t. * Add PIO masks to host drivers. <linux/ata.h> change ACK-ed by Jeff Garzik <jeff@garzik.org>. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: drop "PIO data" argument from ide_get_best_pio_mode()Bartlomiej Zolnierkiewicz2007-07-201-1/+1
| | | | | | | | | | * Drop no longer needed "PIO data" argument from ide_get_best_pio_mode() and convert all users accordingly. * Remove no longer needed ide_pio_data_t. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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