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2007-04-28pata_amd: remove contamination added during cable_detect conversionTejun Heo
This is added by added by cff63dfceb52c564fe1ba5394d50ab7d599a11b9 - pata: cable methods. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: Handle drives that require a spin-up command before first accessMark Lord
(S)ATA drives can be configured for "power-up in standby", a mode whereby a specific "spin up now!" command is required before the first media access. Currently, a drive with this feature enabled can not be used at all with libata, and once in this mode, the drive becomes a doorstop. The older drivers/ide subsystem at least enumerates the drive, so that it can be woken up after the fact from a userspace HDIO_* command, but not libata. This patch adds support to libata for the "power-up in standby" mode where a "spin up now!" command (SET_FEATURES) is needed. With this, libata will recognize such drives, spin them up, and then re-IDENTIFY them if necessary to get a full/complete set of drive features data. Drives in this state are determined by looking for special values in id[2], as documented in the current ATA specs. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: HPA supportAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Add support for ignoring the BIOS HPA result (off by default) and setting the disk to the full available size unless already frozen. Tested with various platforms/disks and confirmed to work with the Macintosh (which broke earlier) and ata_piix (breakage due to the LBA48 readback that Tejun fixed). For normal users this brings us, I believe, to feature parity with old IDE (and of course more featured in some areas too). Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: kill probe_ent and related helpersTejun Heo
All drivers are converted to new init model. Kill probe_ent, ata_device_add() and ata_pci_init_native_mode(). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: convert the remaining PATA drivers to new init modelTejun Heo
Convert pdc_adma, pata_cs5520, pata_isapnp, pata_ixp4xx_cf, pata_legacy, pata_mpc52xx, pata_mpiix, pata_pcmcia, pata_pdc2027x, pata_platform, pata_qdi, pata_scc and pata_winbond to new init model. * init_one()'s now follow more consistent init order * cs5520 now registers one host with two ports, not two hosts. If any of the two ports are disabled, it's made dummy as other drivers do. Tested pdc_adma and pata_legacy. Both are as broken as before. The rest are compile tested only. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: convert the remaining SATA drivers to new init modelTejun Heo
Convert ahci, sata_sil, sata_sil24, sata_svw, sata_qstor, sata_mv, sata_sx4, sata_vsc and sata_inic162x to new init model. Now that host and ap are available during intialization, functions are converted to take either host or ap instead of low level parameters which were inevitable for functions shared between init and other paths. This simplifies code quite a bit. * init_one()'s now follow more consistent init order * ahci_setup_port() and ahci_host_init() collapsed into ahci_init_one() for init order consistency * sata_vsc uses port_info instead of setting fields manually * in sata_svw, k2_board_info converted to port_info (info is now in port flags). port number is honored now. Tested on ICH7/8 AHCI, jmb360, sil3112, 3114, 3124 and 3132. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: convert ata_pci_init_native_mode() users to new init modelTejun Heo
Convert drivers which use ata_pci_init_native_mode() to new init model. ata_pci_init_native_host() is used instead. sata_nv, sata_uli and sata_sis are in this category. Tested on nVidia Corporation CK804 Serial ATA Controller [10de:0054] in both BMDMA and ADMA mode. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: convert drivers with combined SATA/PATA ports to new init modelTejun Heo
Convert sata_via and sata_promise to new init model. Both controllers can have combined configuration (SATA + PATA) and used twisted initialization method (modifying port in ->port_start) to overcome probe_ent limitations. This patch converts both drivers to new init model in which such configuration is natively supported. * promise: Combined pata port now uses separate port_info entry right after the sata counterpart entry. * promise: Controller configuration is discerned using ap->flags. This simplifies init path and makes it look more like other LLDs. * via: Both SATA and PATA ports in vt6421 are represented in their own port_info structure. Tested on PDC20375 (SATA150 TX2plus) [105a:3375] and PDC40775 (SATA 300 TX2plus) [105a:3d73]. Couldn't test via cuz my c3 won't boot the current kernel. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: add init helpers including ata_pci_prepare_native_host()Tejun Heo
These will be used to convert LLDs to new init model. * Add irq_handler field to port_info. In new init model, requesting IRQ is LLD's responsibility and libata doesn't need to know about irq_handler. Most LLDs can simply register their irq_handler but some need different irq_handler depending on specific chip. The added port_info->irq_handler field can be used by LLDs to select the matching IRQ handler in such cases. * Add ata_dummy_port_info. * Implement ata_pci_prepare_native_host(), a helper to alloc ATA host, acquire all resources and init the host in one go. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: convert native PCI host handling to new init modelTejun Heo
Convert native PCI host handling to alloc-init-register model. New function ata_pci_init_native_host() follows the new init model and replaces ata_pci_init_native_mode(). As there are remaining LLD users, the old function isn't removed yet. ata_pci_init_one() is reimplemented using the new function and now fully converted to new init model. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: convert legacy PCI host handling to new init modelTejun Heo
Convert legacy PCI host handling to alloc-init-register model. ata_init_legacy_host(), ata_request_legacy_irqs() and ata_pci_init_bmdma() are separated out and follow the new init model. The two legacy handling functions use separate ata_legacy_devres instead of generic devm_* resources. This reduces devres overhead for legacy hosts which was a bit high because it didn't use PCI/iomap merged resoruces. ata_pci_init_one() is rewritten in terms of the aboved functions but native mode handling is still using the old method. Conversion will be completed when native mode handling is updated. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: implement ata_host_alloc_pinfo() and ata_host_register()Tejun Heo
Implement ata_host_alloc_pinfo() and ata_host_register(). These helpers will be used in the following patches to adopt new init model. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: separate out ata_host_alloc() and ata_host_register()Tejun Heo
Reorganize ata_host_alloc() and its subroutines into the following three functions. * ata_host_alloc() : allocates host and its ports. shost is not registered automatically. * ata_scsi_add_hosts() : allocates and adds shosts associated with an ATA host. Used by ata_host_register(). * ata_host_register() : takes a fully initialized ata_host structure and registers it to libata layer and probes it. Only ata_host_alloc() and ata_host_register() are exported. ata_device_add() is rewritten using the above functions. This patch does not introduce any observable behavior change. Things worth mentioning. * print_id is assigned at registration time and LLDs are allowed to overallocate ports and reduce host->n_ports during initialization. ata_host_register() will throw away unused ports automatically. * All SCSI host initialization stuff now resides in ata_scsi_add_hosts() in libata-scsi.c, where it should be. * ipr is now the only user of ata_host_init(). Either kill it by converting ipr to use ata_host_alloc() and friends or rename and move it to libata-scsi.c Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: separate out ata_host_start()Tejun Heo
Separate out ata_host_start() from ata_device_add(). ata_host_start() calls ->port_start on each port if available and freezes the port. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: allocate ap separately from shostTejun Heo
Don't embed ap inside shost. Allocate it separately and point it back from shosts's hostdata. This makes port allocation more flexible and allows regular ATA and SAS share host alloc/init paths. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28ahci: add PCI ID for new VIA chipTejun Heo
Add PCI ID for new VIA chip. Original patch is from Maarten Vanraes. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Maarten Vanraes <maarten.vanraes@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: kill type mismatch compile warningTejun Heo
kill the following compile warning. drivers/ata/libata-core.c:1786: warning: comparison of distinct pointer types lacks a cast Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28ahci.c: remove non-existing SB600 raid id (re-send)Conke Hu
SB600 RAID and SB600 SATA is the same controller and share the same PCI ID 0x4380. There is no such PCI ID 0x4381. Signed-off-by: Conke Hu <conke.hu@gmail.com> --------- Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: improve AC_ERR_DEV handling for ->post_internal_cmdTejun Heo
->post_internal_cmd is simplified EH for internal commands. Its primary mission is to stop the controller such that no rogue memory access or other activities occur after the internal command is released. It may provide error diagnostics by setting qc->err_mask but this hasn't been a requirement. To ignore SETXFER failure for CFA devices, libata needs to know whether a command was failed by the device or for any other reason. ie. internal command needs to get AC_ERR_DEV right. This patch makes the following changes to AC_ERR_DEV handling and ->post_internal_cmd semantics to accomodate this need and simplify callback implementation. 1. As long as the correct bits in the result TF registers are set, there is no need to set AC_ERR_DEV explicitly. libata EH core takes care of that for both normal and internal commands. 2. The only requirement for ->post_internal_cmd() is to put the controller into quiescent state. It needs not to set any err_mask. 3. ata_exec_internal_sg() performs minimal error analysis such that AC_ERR_DEV is automatically set as long as result_tf is filled correctly. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: fix native mode disabled port handlingTejun Heo
Disabled port handling in ata_pci_init_native_mode() is slightly broken in that it may end up using the wrong port_info. This patch updates it such that disables ports are made dummy as done in the legacy and other cases. While at it, fix indentation in ata_resources_present(). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28ahci: move port_map handling to ahci_save_initial_config()Tejun Heo
Move cross checking between port_map and cap.n_ports into ahci_save_initial_config(). After save_initial_config is done, hpriv->port_map is always setup properly. Tested on JMB363, ICH7 and ICH8 (with dummy ports). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28ahci: implement ata_save/restore_initial_config()Tejun Heo
There are several registers which describe how the controller is configured. These registers are sometimes implemented as r/w registers which are configured by firmware and get cleared on controller reset or after suspend/resume cycle. ahci saved and restored those values inside ahci_reset_controller() which is a bit messy and doesn't work over suspend/resume cycle. This patch implements ahci_save/restore_initial_config(). The save function is called during driver initialization and saves cap and port_map to hpriv. The restore function is called after the controller is reset to restore the initial values. Sometimes the initial firmware values are inconsistent and need to be fixed up. This is handled by ahci_save_initial_config(). For this, there are two versions of saved registers. One to write back to the hardware register, the other to use during driver operation. This is necessary to keep ahci's behavior unchanged (write back fixed up port_map while keeping cap as-is). This patch makes ahci save the register values once before the first controller reset, not after it's been reset. Also, the same stored values are used written back after each reset, so the register values are properly recovered after suspend/resume cycle. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28sata_promise: fix error decode regressionMikael Pettersson
Promise ATA ports should always be reset by pdc_reset_port() when errors are detected, but the recent error reason decoding update to sata_promise replaced that reset with a freeze. This patch changes the error detection to do a reset again. This makes the error decoding update safer, as it now only adds error decoding without changing any other behaviour. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_pdc2027x: UpdatesAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Correct missing modefilter (crash if BAR4 unassigned) Use Cable Detect method Wrap ->set_mode instead ready for ->post_set_mode removal Maxtor errata as per Jeff Garzik report Remove duplicated private udma_mask hacking Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_winbondAlan Cox
Not a PCI device so doesn't need PCI includes Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata: cable methodsAlan Cox
Versus upstream as requested Last of the trivial switches to cable_detect methods. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: add support for READ/WRITE LONGMark Lord
The READ/WRITE LONG commands are theoretically obsolete, but the majority of drives in existance still implement them. The WRITE_LONG and WRITE_LONG_ONCE commands are of particular interest for fault injection testing -- eg. creating "media errors" at specific locations on a disk. The fussy bit is that these commands require a non-standard sector size, usually 520 bytes instead of 512. This patch adds support to libata for READ/WRITE LONG commands issued via SG_IO/ATA_16. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28Add notation that the Asus W5F laptop has a short cable instead of 80-wire.Robin H\. Johnson
The Asus W5F laptop uses a short cable instead of the 80-wire style, and thus needs to be in the ich_laptop special cases for correct detection and support of UDMA/100 for the hard drive. I noticed this because I have the W5F laptop, and was tracing apparent slowness. Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_optidma: rework for cable detect and to remove post_set_mode()Alan Cox
A lot of noise because I had to rename the optidma_set_mode() method to avoid confusion with the new ->set_mode() method that was added. Cable detect side is pretty trivial. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_winbond: restore cable methodAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_sl82c105: restore cable detect methodAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_netcell: re-remove all the crudAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_qdI: restore cable detectAlan Cox
Signed-off-by: Alan Cox <number6@the-village.bc.nu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_ali: remove all the crap again and switch to cable_detect methodAlan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28sata_nv: don't read shadow registers when in ADMA modeRobert Hancock
Reading from the ATA shadow registers while we are in ADMA mode may cause undefined behavior. Don't read the ATA status register when completing commands for this reason, it shouldn't be needed as the controller will notify us if the command failed. Also, don't allow commands with result taskfile requested to execute in ADMA mode, since that requires accessing the shadow registers. We also still need to override tf_read since libata will read the result taskfile on a command failure, and we need to go into port register mode before allowing this. Signed-off-by: Robert Hancock <hancockr@shaw.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pcmcia - spot slave decode flaws (for testing)Alan
It tries to spot when the slave is a mirror of the master and to fix up problems that causes. I've got two confirmations so far that this plus the "can fail set_xfer" patch work for folks who had problems before. Also if you are unfortunate enough to be running something like HAL then it'll automount the same disk twice for you and corrupt it without the fix (aint that nice...) Tested (successfully) by Komuro <komurojun-mbn@nifty.com>. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28git-libata-all-ipr-fixAndrew Morton
drivers/scsi/ipr.c: In function '__ipr_eh_dev_reset': drivers/scsi/ipr.c:3865: warning: passing argument 4 of 'ata_do_eh' from incompatible pointer type Cc: Tejun Heo <htejun@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: hardreset on SERR_INTERNALTejun Heo
There was a rare report where SB600 reported SERR_INTERNAL and SRST couldn't get it out of the failure mode. Hardreset on SERR_INTERNAL. As the problem is intermittent, whether this fixes the problem or not hasn't been verified yet, but hardresetting the channel on internal error is a good idea anyway. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28sata_promise: decode and report error reasonsMikael Pettersson
This patch adds much needed error reason decoding and reporting to sata_promise. It's simplistic but should log all relevant error info the controller provides. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28sata_promise: separate SATA and PATA opsMikael Pettersson
This patch changes sata_promise so that the PATA ports on TX2plus chips are bound to the pdc_pata_ops structure. This means that operations called from the SATA ops structures don't need any SATA-vs-PATA tests any more. Instead, operations that depend on a port being SATA or PATA are separated into different procedures. * pdc_cable_type() is split into a PATA version and a SATA version * pdc_error_handler() is split into a PATA version and a SATA version, that both call a common version after setting up the `hardreset' function pointer * pdc_old_check_atapi_dma() is now only used for SATAI ports, so is renamed to pdc_old_sata_check_atapi_dma() and simplified * pdc_sata_scr_{read,write}() are now only used for SATA ports, so their is-not-SATA tests are removed * pdc_port_start() is split into three procedures: a wrapper which performs the ->ops adjustment on TX2plus PATA ports, a procedure with the common code, and a procedure with the SATA-specific code (this bit might be cleaned up by Tejun's new init model) Tested on 20619, 20575, and 20775 chips. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28sata_promise: add missing cable_detect hooksMikael Pettersson
The recent change which moved cable detection from pdc_pre_reset() to the new ->cable_detect hook only added the hook for SATAII chips, leaving SATAI chips and the 20619 without the hook. Fixed by this patch. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata/IDE: remove combined mode quirkJeff Garzik
Both old-IDE and libata should be able handle all controllers and devices found using normal resource reservation methods. This eliminates the awful, low-performing split-driver configuration where old-IDE drove the PATA portion of a PCI device, in PIO-only mode, and libata drove the SATA portion of the /same/ PCI device, in DMA mode. Typically vendors would ship SATA hard drive / PATA optical configuration, which would lend itself to slow (PIO-only) CD-ROM performance. For Intel users running in combined mode, it is now wholly dependent on your driver choice (potentially link order, if you compile both drivers in) whether old-IDE or libata will drive your hardware. In either case, you will get full performance from both SATA and PATA ports now, without having to pass a kernel command line parameter. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28[libata] turn on !IORDY filterJeff Garzik
The previous commit erroneously noted that the !IORDY filter was turned on. No true, that change was split out into this commit. Originally authored and signed-off-by Alan Cox. Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28[libata] sata_mv: support ->cable_detectJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata: Change prototype of mode_filter to remove ata_port*Alan Cox
With Tejun having added adev->ap some time ago we can get rid of the almost unused port being passed to mode filters. And while we are doing filters, lets turn on the !IORDY filter as well. Signed-off-by: Alan Cox <alan@redhat.com> With some hand massaging from Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28sata_sil: First step to removing ->post_set_modeAlan Cox
Now that we have ata_do_set_mode() available for drivers to use we don't actually need ->post_set_mode() as the driver can wrap set_mode nicely and do stuff before or after (eg PCMCIA needs before), so we can kill off a method in all the structs While I was at it I added kernel-doc to the function involved. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28libata-core: Fix the iordy methodsAlan Cox
This alone isn't sufficient to save the universe from prehistoric disks and controllers but it is a first important step. Split off a separate function to provide a mode filter when controller iordy is not available. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata: expose set_mode method so it can be wrappedAlan
This splits set_mode into do_set_mode and the wrapper so that a driver can call the standard method inside its own. This in theory also obsoletes ->post_set_mode(). Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28pata_hpt37x: Updates from drivers/ide workAlan Cox
Drag pata_hpt37x kicking and screaming in the direction of drivers/ide/pci/hpt366.c and all the work that Sergei has been doing there. Plenty left to be done but this is a good snapshot for folks to work on and to review Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28iomap: implement pcim_iounmap_regions()Tejun Heo
Implement pcim_iounmap_regions() - the opposite of pcim_iomap_regions(). Signed-off-by: Tejun heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>