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* Driver core: add device_create_vargs and device_create_drvdataGreg Kroah-Hartman2008-05-201-6/+79
| | | | | | | | | | | | | | | | We want to have the drvdata field set properly when creating the device as sysfs callbacks can assume it is present and it can race the later setting of this field. So, create two new functions, deviec_create_vargs() and device_create_drvdata() that take this new field. device_create_drvdata() will go away in 2.6.27 as the drvdata field will just be moved to the device_create() call as it should be. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-05-202-12/+22
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: prevent userspace from accessing shut down devices ieee1394: sbp2: use correct size of command descriptor block
| * firewire: prevent userspace from accessing shut down devicesJay Fenlason2008-05-201-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If userspace ignores the POLLERR bit from poll(), and only attempts to read() the device when POLLIN is set, it can still make ioctl() calls on a device that has been removed from the system. The node_id and generation returned by GET_INFO will be outdated, but INITIATE_BUS_RESET would still cause a bus reset, and GET_CYCLE_TIMER will return data. And if you guess the correct generation to use, you can send requests to a different device on the bus, and get responses back. This patch prevents open, ioctl, compat_ioctl, and mmap against shutdown devices. Signed-off-by: Jay Fenlason <fenlason@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
| * ieee1394: sbp2: use correct size of command descriptor blockStefan Richter2008-05-201-12/+8
| | | | | | | | | | | | | | | | | | Boaz Harrosh wrote: > cmd->cmd_len is now guarantied to be set properly at all cases. > And some commands you want to support will not be set correctly > by COMMAND_SIZE(). Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* | Fix a deadlock in the bttv driverArjan van de Ven2008-05-202-2/+3
|/ | | | | | | | | | | | | | | | | | | | | | vidiocgmbuf() does this: mutex_lock(&fh->cap.vb_lock); retval = videobuf_mmap_setup(&fh->cap, gbuffers, gbufsize, V4L2_MEMORY_MMAP); and videobuf_mmap_setup() then just does mutex_lock(&q->vb_lock); ret = __videobuf_mmap_setup(q, bcount, bsize, memory); mutex_unlock(&q->vb_lock); which is an obvious double-take deadlock. This patch fixes this by having vidiocgmbuf() just call the __videobuf_mmap_setup function instead. Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Reported-by: Koos Vriezen <koos.vriezen@gmail.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2008-05-205-29/+33
|\ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: remove CVS keywords HID: Add iMON LCDs to blacklist HID: add Microchip PICKit 1 and PICkit 2 to blacklist HID: split Numlock emulation quirk from HID_QUIRK_APPLE_HAS_FN.
| * HID: remove CVS keywordsAdrian Bunk2008-05-204-8/+0
| | | | | | | | | | | | | | | | This patch removes CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * HID: Add iMON LCDs to blacklistDylan R Semler2008-05-201-0/+4
| | | | | | | | | | | | | | | | The new iMON LCDs from SoundGraph need to be blacklisted from HID in order to be used by lirc. Signed-off-by: Dylan R Semler <dylan.semler@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * HID: add Microchip PICKit 1 and PICkit 2 to blacklistXiaofan Chen2008-05-201-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Microchip PICkit 1 and PICKit 2 USB Programmers are USB HID class of device but they are not real HID device. They are now supported by libusb based programs like the following programs. pk2 and pk2cmd Linux port: http://home.pacbell.net/theposts/picmicro/ usb_pickit: http://tfc.duke.free.fr/pickit.html usb_pickit original version: http://charm.cs.uiuc.edu/users/olawlor/projects/2003/microchip/ Therefore it ispreferred to blacklist them. Signed-off-by: Xiaofan Chen <xiaofanc@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * HID: split Numlock emulation quirk from HID_QUIRK_APPLE_HAS_FN.Diego 'Flameeyes' Petteno2008-05-202-21/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since 2.6.25 the HID_QUIRK_APPLE_HAS_FN quirk is enabled even for non-laptop Apple keyboards of the Aluminium series. The USB version of these don't need Numlock emulation, like the laptop (and Aluminium Wireless) do, as they have a proper keypad. This patch splits the Numlock emulation for Apple keyboards in a different quirk flag, so that it can be enabled for all the keyboards but the Aluminium USB ones. If the Numlock emulation is enabled for Aluminium USB keyboards, the JKL and UIO keys become the numeric pad, and the rest of the keyboard is disabled, included the key used to disable Numlock. Additionally, these keyboard should not have a Numlock at all, as the Numlock key is instead replaced by the 'Clear' key as usual for Apple USB keyboards. Signed-off-by: Diego 'Flameeyes' Petteno <flameeyes@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | Merge branch 'for-linus' of ↵Linus Torvalds2008-05-195-7/+915
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: at91_mci: minor cleanup mmc: mmc host test driver mmc: Fix omap compile by replacing dev_name with dma_dev_name
| * | at91_mci: minor cleanupMarc Pignat2008-05-171-1/+4
| | | | | | | | | | | | | | | | | | | | | MMC_POWER_ON is a noop, no need to set the power pin again. Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * | mmc: mmc host test driverPierre Ossman2008-05-143-0/+905
| | | | | | | | | | | | | | | | | | | | | A dummy driver that performs a series of requests that are often mis- handled by host drivers. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * | mmc: Fix omap compile by replacing dev_name with dma_dev_nameTony Lindgren2008-05-141-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes error: drivers/mmc/host/omap.c: In function 'mmc_omap_get_dma_channel': drivers/mmc/host/omap.c:1038: error: called object 'dev_name' is not a function Commit 06916639e2fed9ee475efef2747a1b7429f8fe76 adds a function called dev_name. This will cause a name conflict as dev_dbg calls dev_name(((host->mmc)->parent)). This same issue should not affect other drivers as they don't seem to use dev_name with dev_dbg. Thanks to Paul Walmsley <paul@pwsan.com> for figuring this one out. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2008-05-193-3/+9
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: Blackfin SPORTS UART Driver: converting BFIN->BLACKFIN Blackfin serial driver: add extra IRQ flag for 8250 serial driver 8250 Serial Driver: Added support for 8250-class UARTs in HV Sistemas H8606 board Blackfin arch: Fix bug - USB fails to build for BF524/BF526 Blackfin arch: update boards defconfig files Blackfin arch: IO Port functions to read/write unalligned memory Blackfin arch: enable a choice to provide 4M DMA memory Blackfin arch: cleanup the icplb/dcplb multiple hit checks Blackfin arch: Add workaround to read edge triggered GPIOs Blackfin arch: Sync channel defines with struct dma_register dma_io_base_addr. Blackfin arch: Check for Anomaly 05000182 [Blackfin] arch: rename bf5xx-flash to bfin-async-flash [Blackfin] arch: Blackfin checksum annotations
| * | | Blackfin SPORTS UART Driver: converting BFIN->BLACKFINMike Frysinger2008-05-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | 8250 Serial Driver: Added support for 8250-class UARTs in HV Sistemas H8606 ↵Javier Herrero2008-05-172-2/+8
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | board Added support for 8250-class UARTs in HV Sistemas H8606 board, modification in 8250.c driver for correct compilation with Blackfin Besides, I think that there is more people using 8250-class UARTs with a different hardware than the H8606 board. This code can be shared by them. Signed-off-by: Javier Herrero <jherrero@hvsistemas.es> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds2008-05-191-4/+4
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix up restorer in debug_trap exception return path. sh: Make is_valid_bugaddr() more intelligent on nommu. sh: use the common ascii hex helpers sh: fix sh7785 master clock value sh: Fix up thread info pointer in syscall_badsys resume path. sh: Fix up optimized SH-4 memcpy on big endian. sh: disable initrd defaults in .empty_zero_page. sh: display boot params by default on entry.
| * | | sh: use the common ascii hex helpersHarvey Harrison2008-05-161-4/+4
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-05-1920-380/+451
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (28 commits) drivers/ata: trim trailing whitespace Fixups to ATA ACPI hotplug libata: ignore SIMG4726 config pseudo device sata_sil24: don't use NCQ if marvell 4140 PMP is attached libata: don't schedule LPM action seperately during probing libata: make sure PMP notification is turned off during recovery libata: increase PMP register access timeout to 3s libata: ignore recovered PHY errors libata: kill hotplug related race condition libata: move reset freeze/thaw handling into ata_eh_reset() libata: reorganize ata_eh_reset() no reset method path libata: fix sata_link_hardreset() @online out parameter handling sata_promise: other cleanups sata_promise: mmio access cleanups sata_promise: fix irq clearing buglets ata: remove FIT() macro sata_mv: ensure empty request queue for FBS-NCQ EH sata_mv: cache main_irq_mask register in hpriv sata_mv: disregard masked irqs sata_mv: fix pmp drives not found ...
| * | | | drivers/ata: trim trailing whitespaceJeff Garzik2008-05-192-5/+5
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | Fixups to ATA ACPI hotplugMatthew Garrett2008-05-191-27/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The libata-acpi.c code currently accepts hotplug messages from both the port and the device. This does not match the behaviour of the bay driver, and may result in confusion when two hotplug requests are received for the same device. This patch limits the hotplug notification to removable ACPI devices, which in turn allows it to use the _STA method to determine whether the device has been removed or inserted. On removal, devices are marked as detached. On insertion, a hotplug scan is started. This should avoid lockups caused by the ata layer attempting to scan devices which have been removed. The uevent sending is moved outside the spinlock in order to avoid a warning generated by it firing when interrupts are disabled. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: ignore SIMG4726 config pseudo deviceTejun Heo2008-05-192-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I was hoping ATA_HORKAGE_NODMA | ATA_HORKAGE_SKIP_PM could keep it happy but no even this doesn't work under certain configurations and it's not like we can do anything useful with the cofig device anyway. Replace ATA_HORKAGE_SKIP_PM with ATA_HORKAGE_DISABLE and use it for the config device. This makes the device completely ignored by libata. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_sil24: don't use NCQ if marvell 4140 PMP is attachedTejun Heo2008-05-191-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When 4140 PMP is attached to sil24, NCQ commands to fan out port 1 and 2 (0 based) often stall if commands are in progress to other ports. I've tried a number of things but can't tell what's going on. It never happens w/ ahci and reportedly sata_mv which can issue NCQ commands to multiple devices simultaneously like sil24 does. Disable NCQ for devices behind 4140 PMP for the time being. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Mark Lord <liml@rtr.ca> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: don't schedule LPM action seperately during probingTejun Heo2008-05-191-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's no reason to schedule LPM action after probing is complete causing another EH iteration. Just schedule it together with probing itself. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: make sure PMP notification is turned off during recoveryTejun Heo2008-05-191-16/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PMP notification during reset can make some controllers fail reset processing and needs to be turned off during resets. PMP attach and full-revalidation path did this via sata_pmp_configure() but the quick revalidation wasn't. Move the notification disable code right above fan-out port recovery so that it's always turned off. This fixes obscure reset failures. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: increase PMP register access timeout to 3sTejun Heo2008-05-191-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This timeout was set low because previously PMP register access was done via polling and register access timeouts could stack up. This is no longer the case. One timeout will make all following accesses fail immediately. In rare cases both marvell and SIMG PMPs need almost a second. Bump it to 3s. While at it, rename it to SATA_PMP_RW_TIMEOUT. It's not specific to SCR access. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: ignore recovered PHY errorsTejun Heo2008-05-191-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No reason to get overzealous about recovered comm and data errors. Some PHYs habitually sets them w/o no good reason and being draconian about these soft error conditions doesn't seem to help anybody. If need ever rises, we might need to add soft PHY error condition, say AC_ERR_MAYBE_ATA_BUS and use it only to determine whether speed down is necessary but I don't think that's very likely to happen. It's far more likely we'll get timeouts or fatal transmission errors if recovered errors are so prominent that they hamper operation. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: kill hotplug related race conditionTejun Heo2008-05-192-23/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Originally, whole reset processing was done while the port is frozen and SError was cleared during @postreset(). This had two race conditions. 1: hotplug could occur after reset but before SError is cleared and libata won't know about it. 2: hotplug could occur after all the reset is complete but before the port is thawed. As all events are cleared on thaw, the hotplug event would be lost. Commit ac371987a81c61c2efbd6931245cdcaf43baad89 kills the first race by clearing SError during link resume but before link onlineness test. However, this doesn't fix race #2 and in some cases clearing SError after SRST is a good idea. This patch solves this problem by cross checking link onlineness with classification result after SError is cleared and port is thawed. Reset is retried if link is online but all devices attached to the link are unknown. As all devices will be revalidated, this one-way check is enough to ensure that all devices are detected and revalidated reliably. This, luckily, also fixes the cases where host controller returns bogus status while harddrive is spinning up after hotplug making classification run before the device sends the first FIS and thus causes misdetection. Low level drivers can bypass the logic by setting class explicitly to ATA_DEV_NONE if ever necessary (currently none requires this). Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: move reset freeze/thaw handling into ata_eh_reset()Tejun Heo2008-05-192-32/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously reset freeze/thaw handling lived outside of ata_eh_reset() mainly because the original PMP reset code needed the port frozen while resetting all the fan-out ports, which is no longer the case. This patch moves freeze/thaw handling into ata_eh_reset(). @prereset() and @postreset() are now called w/o freezing the port although @prereset() an be called frozen if the port is frozen prior to entering ata_eh_reset(). This makes code simpler and will help removing hotplug event related races. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: reorganize ata_eh_reset() no reset method pathTejun Heo2008-05-191-50/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reorganize ata_eh_reset() such that @prereset() is called even when no reset method is available and if block is used instead of goto to skip actual reset. This makes no reset case behave better (readiness wait) and future changes easier. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | libata: fix sata_link_hardreset() @online out parameter handlingTejun Heo2008-05-191-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The @online out parameter is supposed to set to true iff link is online and reset succeeded as advertised in the function description and callers are coded expecting that. However, sata_link_reset() didn't behave this way on device readiness test failure. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_promise: other cleanupsMikael Pettersson2008-05-191-16/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minor coding-style fixes for sata_promise: - remove stray blank lines - fix checkpatch.pl errors; warnings about long lines remain, but I don't intend to address those at this time - remove two inline directives: neither is essential and both functions are trivially inlinable anyway by virtue of being static and having a single unique call site - fix comment in pdc_interrupt(): the bits in PDC_INT_SEQMASK denote SEQIDs not tags, the distinction becomes important when NCQ gets implemented Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_promise: mmio access cleanupsMikael Pettersson2008-05-191-59/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans up sata_promise's mmio accesses. In sata_promise there are three distinct mmio address spaces: 1. global registers, offsets from host->iomap[PDC_MMIO_BAR] 2. per-port ATA registers, offsets from ap->ioaddr.cmd_addr 3. per-port SATA registers, offsets from ap->ioaddr.scr_addr The driver currently often fails to indicate which address space a given mmio base pointer refers to, which is a source of bugs and confusion (see recent pdc_thaw() irq clearing bug; it's also been an obstacle for the pending NCQ extensions). To reduce these problems, adopt a coding style where the name of a base pointer always indicates which address space it refers to: 1. global registers: host_mmio 2. per-port ATA registers: ata_mmio 3. per-port SATA registers: sata_mmio Also rearrange register offset definitions to clearly indicate which address space they belong to, and add a symbolic definition for the previously hard-coded PHYMODE4 register. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_promise: fix irq clearing bugletsMikael Pettersson2008-05-191-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes two bugs in sata_promise's irq status clearing paths: 1. When clearing the irq status for a specific port, the driver read the global SEQMASK register. This is wrong because that clears the irq status for _all_ ports. 2. pdc_thaw() incorrectly added the PDC_INT_SEQMASK host register offset to a per-port ata engine base address. This resulted in it reading the unrelated PDC_PKT_SUBMIT register, which did not have the desired irq status clearing effect. In both cases the fix is to read from the port's Command/Status register. This also matches what Promise's own driver does. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | ata: remove FIT() macroHarvey Harrison2008-05-199-64/+64
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the kernel-provided clamp_val() macro. FIT was always applied to a member of struct ata_timing (unsigned short) and two constants. clamp_val will not cast to short anymore. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.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 <jgarzik@redhat.com>
| * | | | sata_mv: ensure empty request queue for FBS-NCQ EHMark Lord2008-05-191-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check for an empty request queue before stopping EDMA after a FBS-NCQ error, as per recommendation from the Marvell datasheet. This ensures that the EDMA won't suddenly become active again just after our subsequent check of the empty/idle bits. Also bump DRV_VERSION. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: cache main_irq_mask register in hprivMark Lord2008-05-191-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part five of simplifying/fixing handling of the main_irq_mask register to resolve unexpected interrupt issues observed in 2.6.26-rc*. Keep a cached copy of the main_irq_mask so that we don't have to stall the CPU to read it on every pass through mv_interrupt. This significantly speeds up interrupt handling, both for sata_mv, and for any other driver/device sharing the same PCI IRQ line. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: disregard masked irqsMark Lord2008-05-191-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part four of simplifying/fixing handling of the main_irq_mask register to resolve unexpected interrupt issues observed in 2.6.26-rc*. Ignore masked IRQs in mv_interrupt(). This prevents "unexpected device interrupt while idle" messages. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: fix pmp drives not foundMark Lord2008-05-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part three of simplifying/fixing handling of the main_irq_mask register to resolve unexpected interrupt issues observed in 2.6.26-rc*. Partially fix a reported bug whereby we sometimes miss seeing drives on a port-multiplier, as reported by Gwendal Grignou <gwendal@google.com>. The problem was that we were receiving unexpected interrupts during EH from POLLed commands while accessing port-multiplier registers. These unexpected interrupts can be prevented by masking the DONE_IRQ bit for the port whenever not operating in EDMA mode. Also fix port_stop() to mask all port interrupts. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: consolidate main_irq_mask updatesMark Lord2008-05-191-25/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part two of simplifying/fixing handling of the main_irq_mask register to resolve unexpected interrupt issues observed in 2.6.26-rc*. Consolidate all updates of the host main_irq_mask register into a single function. This simplifies maintenance, and also prepares the way for caching it (later). No functionality changes in this update. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: don't blindly enable IRQsMark Lord2008-05-191-26/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part one of simplifying/fixing handling of the main_irq_mask register to resolve unexpected interrupt issues observed in 2.6.26-rc*. Don't blindly enable port IRQs at host init time. Instead, enable only the bits that we want, which in this case is simply the PCI_ERR bit. The per-port bits can wait until the ports are reset/probed for devices. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: async notify for genIIe onlyMark Lord2008-05-191-2/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that we handle the FIS_IRQ_CAUSE register correctly, we can also now handle SATA asynchronous notification events. So enable them, but only for the more modern GenIIe chips. (older chips have unaddressed errata issues related to this). This fixes hot plug/unplug for port-muliplier ports. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: group genIIe flagsMark Lord2008-05-191-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Group all of the flags for GenIIe devices into a common definition, to ensure that any updates to them are shared by all GenIIe devices. This will help make future maintenance somewhat simpler. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: fis irq register fixesMark Lord2008-05-191-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix handling of the FIS_IRQ_CAUSE register in sata_mv. This register exists *only* on GenIIe devices, so don't bother writing to it on older chips. Also, it has to be read/cleared in mv_err_intr() before clearing the main ERR_IRQ_CAUSE register. This keeps sata_mv from getting stuck forever on certain error types. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | sata_mv: always do softresetMark Lord2008-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always request a softreset after hardreset succeeds. This fixes a regression reported by Martin Michlmayr <tbm@cyrius.com>. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | avr32/pata: avoid unnecessary memset (updated after comments)Christophe Jaillet2008-05-191-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove an explicit memset(.., 0, ...) to a variable allocated with kzalloc (i.e. 'info'). Signed-off-by: Christophe Jaillet <christophe.jaillet@wanadoo.fr> Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * | | | pata-bf54x: Set ATAPI HSM to control IDE device terminate sequence.Sonic Zhang2008-05-191-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Set ATAPI host state machine to control IDE device terminate sequence. Some IDE harddisk may assert terminate sequence in the middle of a formal DMA transaction and resume later. Bit DETECT_TERM in ATAPI_CTRL register determines whether the ATAPI host state machine or the kernel driver should take care of this case. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | | | | Merge branch 'kvm-updates-2.6.26' of ↵Linus Torvalds2008-05-191-17/+23
|\ \ \ \ \ | |/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: LAPIC: ignore pending timers if LVTT is disabled KVM: Update MAINTAINERS for new mailing lists KVM: Fix kvm_vcpu_block() task state race KVM: ia64: Set KVM_IOAPIC_NUM_PINS to 48 KVM: ia64: fix GVMM module including position-dependent objects KVM: ia64: Define new kvm_fpreg struture to replace ia64_fpreg KVM: PIT: take inject_pending into account when emulating hlt s390: KVM guest: fix compile error KVM: x86 emulator: fix writes to registers with modrm encodings
| * | | | s390: KVM guest: fix compile errorHeiko Carstens2008-05-181-17/+23
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix kvm compile error: Commit c45a6816c19dee67b8f725e6646d428901a6dc24 (virtio: explicit advertisement of driver features) and commit e976a2b997fc4ad70ccc53acfe62811c4aaec851 (s390: KVM guest: virtio device support, and kvm hypercalls) don't like each other: CC drivers/s390/kvm/kvm_virtio.o drivers/s390/kvm/kvm_virtio.c:224: error: unknown field 'feature' specified in initializer drivers/s390/kvm/kvm_virtio.c:224: warning: initialization from incompatible pointer type make[3]: *** [drivers/s390/kvm/kvm_virtio.o] Error 1 Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
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