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2009-09-03Merge branch 'amd-iommu/passthrough' into amd-iommu/2.6.32Joerg Roedel
Conflicts: arch/x86/kernel/amd_iommu.c arch/x86/kernel/amd_iommu_init.c
2009-09-03Merge branches 'gart/fixes', 'amd-iommu/fixes+cleanups' and ↵Joerg Roedel
'amd-iommu/fault-handling' into amd-iommu/2.6.32
2009-09-03x86/gart: Do not select AGP for GART_IOMMUPavel Vasilyev
There is no dependency from the gart code to the agp code. And since a lot of systems today do not have agp anymore remove this dependency from the kernel configuration. Signed-off-by: Pavel Vasilyev <pavel@pavlinux.ru> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Initialize passthrough mode when requestedJoerg Roedel
This patch enables the passthrough mode for AMD IOMMU by running the initialization function when iommu=pt is passed on the kernel command line. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Don't detach device from pt domain on driver unbindJoerg Roedel
This patch makes sure a device is not detached from the passthrough domain when the device driver is unloaded or does otherwise release the device. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Make sure a device is assigned in passthrough modeJoerg Roedel
When the IOMMU driver runs in passthrough mode it has to make sure that every device not assigned to an IOMMU-API domain must be put into the passthrough domain instead of keeping it unassigned. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Align locking between attach_device and detach_deviceJoerg Roedel
This patch makes the locking behavior between the functions attach_device and __attach_device consistent with the locking behavior between detach_device and __detach_device. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Fix device table write orderJoerg Roedel
The V bit of the device table entry has to be set after the rest of the entry is written to not confuse the hardware. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Add passthrough mode initialization functionsJoerg Roedel
When iommu=pt is passed on kernel command line the devices should run untranslated. This requires the allocation of a special domain for that purpose. This patch implements the allocation and initialization path for iommu=pt. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Add core functions for pd allocation/freeingJoerg Roedel
This patch factors some code of protection domain allocation into seperate functions. This way the logic can be used to allocate the passthrough domain later. As a side effect this patch fixes an unlikely domain id leakage bug. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/dma: Mark iommu_pass_through as __read_mostlyJoerg Roedel
This variable is read most of the time. This patch marks it as such. It also documents the meaning the this variable while at it. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Reset command buffer if wait loop failsJoerg Roedel
Instead of a panic on an comletion wait loop failure, try to recover from that event from resetting the command buffer. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Panic if IOMMU command buffer reset failsJoerg Roedel
To prevent the driver from doing recursive command buffer resets, just panic when that recursion happens. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Reset command buffer on ILLEGAL_COMMAND_ERRORJoerg Roedel
On an ILLEGAL_COMMAND_ERROR the IOMMU stops executing further commands. This patch changes the code to handle this case better by resetting the command buffer in the IOMMU. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Add reset function for command buffersJoerg Roedel
This patch factors parts of the command buffer initialization code into a seperate function which can be used to reset the command buffer later. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Add function to flush all DTEs on one IOMMUJoerg Roedel
This function flushes all DTE entries on one IOMMU for all devices behind this IOMMU. This is required for command buffer resetting later. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: fix broken check in amd_iommu_flush_all_devicesJoerg Roedel
The amd_iommu_pd_table is indexed by protection domain number and not by device id. So this check is broken and must be removed. Cc: stable@kernel.org Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Remove redundant 'IOMMU' stringJoerg Roedel
The 'IOMMU: ' prefix is not necessary because the DUMP_printk macro already prints its own prefix. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: replace "AMD IOMMU" by "AMD-Vi"Joerg Roedel
This patch replaces the "AMD IOMMU" printk strings with the official name for the hardware: "AMD-Vi". Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Remove some merge helper codeJoerg Roedel
This patch removes some left-overs which where put into the code to simplify merging code which also depends on changes in other trees. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Introduce function for iommu-local domain flushJoerg Roedel
This patch introduces a function to flush all domain tlbs for on one given IOMMU. This is required later to reset the command buffer on one IOMMU. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Dump illegal command on ILLEGAL_COMMAND_ERRORJoerg Roedel
This patch adds code to dump the command which caused an ILLEGAL_COMMAND_ERROR raised by the IOMMU hardware. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-09-03x86/amd-iommu: Dump fault entry on DTE errorJoerg Roedel
This patch adds code to dump the content of the device table entry which caused an ILLEGAL_DEV_TABLE_ENTRY error from the IOMMU hardware. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2009-08-31autofs4 - fix missed case when changing to use struct pathIan Kent
In the recent change by Al Viro that changes verious subsystems to use "struct path" one case was missed in the autofs4 module which causes mounts to no longer expire. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-31Merge branch 'fix/hda' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Fix MacBookPro 3,1/4,1 quirk with ALC889A ALSA: hda - Add missing mux check for VT1708
2009-08-31Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: V4L/DVB (12564a): MAINTAINERS: Update gspca sn9c20x name style V4L/DVB (12502): gspca - sn9c20x: Fix gscpa sn9c20x build errors. V4L/DVB (12495): em28xx: Don't call em28xx_ir_init when disable_ir is true V4L/DVB (12457): zr364: wrong indexes V4L/DVB (12451): Update KConfig File to enable SDIO and USB interfaces V4L/DVB (12450): Siano: Fixed SDIO compilation bugs V4L/DVB (12449): adds webcam for Micron device MT9M111 0x143A to em28xx V4L/DVB (12446): sms1xxx: restore GPIO functionality for all Hauppauge devices
2009-08-31lmb: Also remove __init from lmb_end_of_RAM() declaration in lmb.hBenjamin Herrenschmidt
My previous patch (commit 4f8ee2c9cc: "lmb: Remove __init from lmb_end_of_DRAM()") removed __init in lmb.c but missed the fact that it was also marked as such in the .h Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-31ata_piix: parallel scanning on PATA needs an extra lockingBartlomiej Zolnierkiewicz
Commit log for commit 517d3cc15b36392e518abab6bacbb72089658313 ("[libata] ata_piix: Enable parallel scan") says: This patch turns on parallel scanning for the ata_piix driver. This driver is used on most netbooks (no AHCI for cheap storage it seems). The scan is the dominating time factor in the kernel boot for these devices; with this flag it gets cut in half for the device I used for testing (eeepc). Alan took a look at the driver source and concluded that it ought to be safe to do for this driver. Alan has also checked with the hardware team. and it is all true but once we put all things together additional constraints for PATA controllers show up (some hardware registers have per-host not per-port atomicity) and we risk misprogramming the controller. I used the following test to check whether the issue is real: @@ -736,8 +736,20 @@ static void piix_set_piomode(struct ata_ (timings[pio][1] << 8); } pci_write_config_word(dev, master_port, master_data); - if (is_slave) + if (is_slave) { + if (ap->port_no == 0) { + u8 tmp = slave_data; + + while (slave_data == tmp) { + pci_read_config_byte(dev, slave_port, &tmp); + msleep(50); + } + + dev_printk(KERN_ERR, &dev->dev, "PATA parallel scan " + "race detected\n"); + } pci_write_config_byte(dev, slave_port, slave_data); + } /* Ensure the UDMA bit is off - it will be turned back on if UDMA is selected */ and it indeed triggered the error message. Lets fix all such races by adding an extra locking to ->set_piomode and ->set_dmamode methods for PATA controllers. [ Alan: would be better to take the host lock in libata-core for these cases so that we fix all the adapters in one swoop. "Looks fine as a temproary quickfix tho" ] Cc: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Alan Cox <alan@linux.intel.com> Cc: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-31Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: Improve CRTDDC mapping by using VBT info drm/i915: Fix CPU-spinning hangs related to fence usage by using an LRU. drm/i915: Set crtc/clone mask in different output devices drm/i915: Always use SDVO_B detect bit for SDVO output detection. drm/i915: Fix typo that broke SVID1 in intel_sdvo_multifunc_encoder() drm/i915: Check if BIOS enabled dual-channel LVDS on 8xx, not only on 9xx drm/i915: Set the multiplier for SDVO on G33 platform
2009-08-31ALSA: hda - Fix MacBookPro 3,1/4,1 quirk with ALC889ATakashi Iwai
This patch fixes the wrong headphone output routing for MacBookPro 3,1/4,1 quirk with ALC889A codec, which caused the silent headphone output. Also, this gives the individual Headphone and Speaker volume controls. Reference: kernel bug#14078 http://bugzilla.kernel.org/show_bug.cgi?id=14078 Signed-off-by: Takashi Iwai <tiwai@suse.de> Cc: <stable@kernel.org>
2009-08-31ALSA: hda - Add missing mux check for VT1708Takashi Iwai
In patch_vt1708(), the check of MUX nids is missing and this results in the -EINVAL error in accessing Input Source mixer element. Simpliy adding the call of get_mux_nids() fixes the problem. Reference: Novell bnc#534904 https://bugzilla.novell.com/show_bug.cgi?id=534904 Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-08-31V4L/DVB (12564a): MAINTAINERS: Update gspca sn9c20x name styleJoe Perches
To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12502): gspca - sn9c20x: Fix gscpa sn9c20x build errors.Randy Dunlap
Reported-by: Toralf Forster <toralf.foerster@gmx.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12495): em28xx: Don't call em28xx_ir_init when disable_ir is trueShine Liu
We should call em28xx_ir_init(dev) only when disable_ir is true. Signed-off-by: Shine Liu <shinel@foxmail.com> Reviewed-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12457): zr364: wrong indexesRoel Kluin
The order of indexes is reversed Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Antoine Jacquet <royale@zerezo.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12451): Update KConfig File to enable SDIO and USB interfacesUdi Atar
Update KConfig file to enbale selection of SDIO and USB interfaces, and add dependancy on relevant modules. [mchehab@redhat.com: fix merge conflicts, remove default: m, add missing endmenu] Signed-off-by: Udi Atar <udia@siano-ms.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12450): Siano: Fixed SDIO compilation bugsUdi Atar
Fixed SDIO compilation bugs Also fixed a memory overrun issue in buffer management. Signed-off-by: Udi Atar <udia@siano-ms.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12449): adds webcam for Micron device MT9M111 0x143A to em28xxMauro Carvalho Chehab
[mchehab@redhat.com: fix merge conflict and a few CodingStyle issues] Signed-off-by: Steve Gotthardt <gotthardt@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-31V4L/DVB (12446): sms1xxx: restore GPIO functionality for all Hauppauge devicesMichael Krufky
Previous changesets broke Hauppauge devices and their GPIO configurations. This changeset restores the LED & LNA functionality. Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-08-29drm/i915: Improve CRTDDC mapping by using VBT infoDavid Müller (ELSOFT AG)
Use VBT information to determine which DDC bus to use for CRTDCC. Fall back to GPIOA if VBT info is not available. Signed-off-by: David Müller <d.mueller@elsoft.ch> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Eric Anholt <eric@anholt.net> Tested on: 855 (David), and 945GM, 965GM, GM45, and G45 (anholt)
2009-08-29drm/i915: Fix CPU-spinning hangs related to fence usage by using an LRU.Eric Anholt
The lack of a proper LRU was partially worked around by taking the fence from the object containing the oldest seqno. But if there are multiple objects inactive, then they don't have seqnos and the first fence reg among them would be chosen. If you were trying to copy data between two mappings, this could result in each page fault stealing the fence from the other argument, and your application hanging. https://bugs.freedesktop.org/show_bug.cgi?id=23566 https://bugs.freedesktop.org/show_bug.cgi?id=23220 https://bugs.freedesktop.org/show_bug.cgi?id=23253 https://bugs.freedesktop.org/show_bug.cgi?id=23366 Cc: Stable Team <stable@kernel.org> Signed-off-by: Eric Anholt <eric@anholt.net> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2009-08-28Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: ACPI: don't free non-existent backlight in acpi video module toshiba_acpi: return on a fail path ACPICA: Windows compatibility fix: same buffer/string store
2009-08-28Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notifyLinus Torvalds
* 'for-linus' of git://git.infradead.org/users/eparis/notify: inotify: update the group mask on mark addition inotify: fix length reporting and size checking inotify: do not send a block of zeros when no pathname is available
2009-08-28parisc: fix warning in traps.cGrant Grundler
On Tue, Aug 18, 2009 at 01:45:17PM -0400, John David Anglin wrote: > CC arch/parisc/kernel/traps.o > arch/parisc/kernel/traps.c: In function 'handle_interruption': > arch/parisc/kernel/traps.c:535:18: warning: operation on 'regs->iasq[0]' > may be undefined Yes - Line 535 should use both [0] and [1]. Reported-by: John David Anglin <dave@hiauly1.hia.nrc.ca> Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-28SUNRPC: Fix rpc_task_force_reencodeTrond Myklebust
This patch fixes the bug that was reported in http://bugzilla.kernel.org/show_bug.cgi?id=14053 If we're in the case where we need to force a reencode and then resend of the RPC request, due to xprt_transmit failing with a networking error, then we _must_ retransmit the entire request. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-28modules: Fix build error in the !CONFIG_KALLSYMS caseIngo Molnar
> James Bottomley (1): > module: workaround duplicate section names -tip testing found that this patch breaks the build on x86 if CONFIG_KALLSYMS is disabled: kernel/module.c: In function ‘load_module’: kernel/module.c:2367: error: ‘struct module’ has no member named ‘sect_attrs’ distcc[8269] ERROR: compile kernel/module.c on ph/32 failed make[1]: *** [kernel/module.o] Error 1 make: *** [kernel] Error 2 make: *** Waiting for unfinished jobs.... Commit 1b364bf misses the fact that section attributes are only built and dealt with if kallsyms is enabled. The patch below fixes this. ( note, technically speaking this should depend on CONFIG_SYSFS as well but this patch is correct too and keeps the #ifdef less intrusive - in the KALLSYMS && !SYSFS case the code is a NOP. ) Signed-off-by: Ingo Molnar <mingo@elte.hu> [ Replaced patch with a slightly cleaner variation by James Bottomley ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-08-28Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix vSMP boot crash x86, xen: Initialize cx to suppress warning x86, xen: Suppress WP test on Xen
2009-08-28ACPI: don't free non-existent backlight in acpi video moduleKeith Packard
acpi_video_put_one_device was attempting to remove sysfs entries and unregister a backlight device without first checking that said backlight device structure had been created. Signed-off-by: Keith Packard <keithp@keithp.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2009-08-28toshiba_acpi: return on a fail pathJiri Slaby
Return from bt_rfkill_poll() when hci_get_radio_state() fails. value is invalid in that case and should not be assigned to the rfkill state. This also fixes a double unlock bug. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: John W. Linville <linville@tuxdriver.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com>
2009-08-28ACPICA: Windows compatibility fix: same buffer/string storeLin Ming
Fix a compatibility issue when the same buffer or string is stored to itself. This has been seen in the field. Previously, ACPICA would zero out the buffer/string. Now, the operation is treated as a NOP. http://bugzilla.acpica.org/show_bug.cgi?id=803 Reported-by: Rezwanul Kabir <Rezwanul_Kabir@Dell.com> Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
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