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* Merge tag 'pinctrl-for-v3.11-2' of ↵Linus Torvalds2013-07-294-2/+26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: - Driver fixes for AM33xx, SIRF and PFC pin controllers - Fix a compile warning from the pinctrl single-register driver - Fix a little nasty memory leak * tag 'pinctrl-for-v3.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: fix a memleak when freeing maps pinctrl: pinctrl-single: fix compile warning when no CONFIG_PM pinctrl: sh-pfc: fix SDHI0 VccQ regulator on sh73a0 with DT arm/dts: sirf: fix the pingroup name mismatch between drivers and dts pinctrl: sirf: add usp0_uart_nostreamctrl pin group for usp-uart without flowctrl pinctrl: sirf: fix the pin number and mux bit for usp0 pinctrl: am33xx dt binding: correct include path
| * pinctrl: fix a memleak when freeing mapsLinus Walleij2013-07-251-0/+1
| | | | | | | | | | | | | | | | We forgot to free the node itself when free:ing a map. Reported-by: xulinuxkernel <xulinuxkernel@gmail.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * pinctrl: pinctrl-single: fix compile warning when no CONFIG_PMJean-Francois Moine2013-07-221-0/+2
| | | | | | | | | | | | | | | | | | This warning has been introduced by the commit 0f9bc4bcdf4f pinctrl: single: adopt pinctrl sleep mode management Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * pinctrl: sh-pfc: fix SDHI0 VccQ regulator on sh73a0 with DTGuennadi Liakhovetski2013-07-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The PFC pinctrl driver on sh73a0 is also regiatering a VccQ regulator for SDHI0. However, its consumers list only included the platform-data based SDHI device name. When booted with DT SDHI0 couldn't enable VccQ and therefore was unusable. Fix this by adding a consumer with DT-based name. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * pinctrl: sirf: add usp0_uart_nostreamctrl pin group for usp-uart without ↵Qipan Li2013-07-221-0/+20
| | | | | | | | | | | | | | | | | | | | | | flowctrl this patch adds the lost pin group which supports to let USP0 to simulate a UART without hardware flow control. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| * pinctrl: sirf: fix the pin number and mux bit for usp0Qipan Li2013-07-221-2/+2
| | | | | | | | | | | | | | | | | | we missed a pin and related mux bit for usp pin group, this patch fixes it. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* | Merge tag 'scsi-fixes' of ↵Linus Torvalds2013-07-296-24/+32
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is five bug fixes, two of which fix long standing problems causing crashes (sd and mvsas). The remaining three are hung (isci race) or lost (qla2xxx, isci) devices" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] isci: fix breakage caused by >16byte CDB patch [SCSI] mvsas: Fix kernel panic on tile due to unaligned data access [SCSI] sd: fix crash when UA received on DIF enabled device [SCSI] qla2xxx: Properly set the tagging for commands. [SCSI] isci: Fix a race condition in the SSP task management path
| * | [SCSI] isci: fix breakage caused by >16byte CDB patchJames Bottomley2013-07-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Oops, apparently no-one I cc'd at intel actually bothered to check this patch for the isci driver: commit e73823f7a2c921dcf068d34ea03bd682498d9e42 Author: James Bottomley <JBottomley@Parallels.com> Date: Tue May 7 15:38:18 2013 -0700 [SCSI] libsas: implement > 16 byte CDB support sci_swab32_cpy needs multiples of four, so for commands that aren't that, it's rounding the wrong way. fix by doing (len+3)/4 instead of len/4. Reported-by: Tony Luck <tony.luck@intel.com> Tested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] mvsas: Fix kernel panic on tile due to unaligned data accessJames Bottomley2013-07-242-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | slot->response is a 64 bit quantity (and accessed as such), but its alignment is only 32 bits. This doesn't cause a problem on x86, but apparently causes a kernel panic on Tile: Stack dump complete Kernel panic - not syncing: Kernel unalign fault running the idle task! Starting stack dump of tid 0, pid 0 (swapper) on cpu 1 at cycle 341586172541 frame 0: 0xfffffff700140ee0 dump_stack+0x0/0x20 (sp 0xfffffe43ffedf420) frame 1: 0xfffffff700283270 panic+0x150/0x3a0 (sp 0xfffffe43ffedf420) frame 2: 0xfffffff70012bff8 jit_bundle_gen+0xfd8/0x27e0 (sp 0xfffffe43ffedf4c8) frame 3: 0xfffffff7003b5b68 do_unaligned+0xc0/0x5a0 (sp 0xfffffe43ffedf710) frame 4: 0xfffffff70044ca78 handle_interrupt+0x270/0x278 (sp 0xfffffe43ffedf840) <interrupt 17 while in kernel mode> frame 5: 0xfffffff7002ac370 mvs_slot_complete+0x5f0/0x12a0 (sp 0xfffffe43ffedfa90) frame 6: 0xfffffff7002abec0 mvs_slot_complete+0x140/0x12a0 (sp 0xfffffe43ffedfa90) frame 7: 0xfffffff7005cc840 mvs_int_rx+0x140/0x2a0 (sp 0xfffffe43ffedfb00) frame 8: 0xfffffff7005bbaf0 mvs_94xx_isr+0xd8/0x2b8 (sp 0xfffffe43ffedfb68) frame 9: 0xfffffff700658ba0 mvs_tasklet+0x128/0x1f8 (sp 0xfffffe43ffedfba8) frame 10: 0xfffffff7003e8230 tasklet_action+0x178/0x2c8 (sp 0xfffffe43ffedfbe0) frame 11: 0xfffffff700103850 __do_softirq+0x210/0x398 (sp 0xfffffe43ffedfc40) frame 12: 0xfffffff700180308 do_softirq+0xc8/0x140 (sp 0xfffffe43ffedfcd8) frame 13: 0xfffffff7000bd7f0 irq_exit+0xb0/0x158 (sp 0xfffffe43ffedfcf0) frame 14: 0xfffffff70013fa58 tile_dev_intr+0x1d8/0x2f0 (sp 0xfffffe43ffedfd00) frame 15: 0xfffffff70044ca78 handle_interrupt+0x270/0x278 (sp 0xfffffe43ffedfd40) <interrupt 30 while in kernel mode> frame 16: 0xfffffff700143e68 _cpu_idle_nap+0x0/0x18 (sp 0xfffffe43ffedffb0) frame 17: 0xfffffff700482480 cpu_idle+0x310/0x428 (sp 0xfffffe43ffedffb0) Since the check is just for non-zero, split it to be two 32 bit accesses (preserving speed in the fast path) and do a get_unaligned() in the slow path. This is a modification of a wholly get_unaligned patch submitted by Paul Guo Reported-by: Paul Guo <ggang@tilera.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] sd: fix crash when UA received on DIF enabled deviceEwan D. Milne2013-07-231-15/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sd_prep_fn will allocate a larger CDB for the command via mempool_alloc for devices using DIF type 2 protection. This CDB was being freed in sd_done, which results in a kernel crash if the command is retried due to a UNIT ATTENTION. This change moves the code to free the larger CDB into sd_unprep_fn instead, which is invoked after the request is complete. It is no longer necessary to call scsi_print_command separately for this case as the ->cmnd will no longer be NULL in the normal code path. Also removed conditional test for DIF type 2 when freeing the larger CDB because the protection_type could have been changed via sysfs while the command was executing. Signed-off-by: Ewan D. Milne <emilne@redhat.com> Acked-by: Martin K. Petersen <martin.petersen@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] qla2xxx: Properly set the tagging for commands.Saurav Kashyap2013-07-231-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a regression where Xyratex controllers and disks were lost by the driver: https://bugzilla.kernel.org/show_bug.cgi?id=59601 Reported-by: Jack Hill <jackhill@jackhill.us> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| * | [SCSI] isci: Fix a race condition in the SSP task management pathJeff Skirvin2013-07-231-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit fixes a race condition in the isci driver abort task and SSP device task management path. The race is caused when an I/O termination in the SCU hardware is necessary because of an SSP target timeout condition, and the check of the I/O end state races against the HW-termination-driven end state. The failure of the race meant that no TMF was sent to the device to clean-up the pending I/O. Signed-off-by: Jeff Skirvin <jeffrey.d.skirvin@intel.com> Reviewed-by: Lukasz Dorau <lukasz.dorau@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
* | | Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2013-07-2611-127/+158
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull drm fixes from Dave Airlie: "This is just a regular fixes pull apart from the qxl one, it has radeon and intel bits in it, The intel fixes are for a regression with the RC6 fix and a 3.10 hdmi regression, whereas radeon is more DPM fixes, a few lockup fixes and some rn50/r100 DAC fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon/dpm: fix r600_enable_sclk_control() drm/radeon/dpm: implement force performance levels for rv6xx drm/radeon/dpm: fix displaygap programming on rv6xx drm/radeon/dpm: fix a typo in the rv6xx mclk setup drm/i915: initialize gt_lock early with other spin locks drm/i915: fix hdmi portclock limits drm/radeon: fix combios tables on older cards drm/radeon: improve dac adjust heuristics for legacy pdac drm/radeon: Another card with wrong primary dac adj drm/radeon: fix endian issues with DP handling (v3) drm/radeon/vm: only align the pt base to 32k drm/radeon: wait for 3D idle before using CP DMA
| * \ \ Merge tag 'drm-intel-fixes-2013-07-25' of ↵Dave Airlie2013-07-263-5/+17
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://people.freedesktop.org/~danvet/drm-intel into drm-fixes Brown-paper-bag pull request here. The snb rc6 fix from the last pull broke forcewake BIOS dirt cleanup, which with fixed. But that fix broke the spinlock init sequence, which results in an ugly BUG when spinlock debugging is enabled :( So I get to throw another patch at cc: stable to fix up the mess ... * tag 'drm-intel-fixes-2013-07-25' of git://people.freedesktop.org/~danvet/drm-intel: drm/i915: initialize gt_lock early with other spin locks drm/i915: fix hdmi portclock limits
| | * | | drm/i915: initialize gt_lock early with other spin locksJani Nikula2013-07-252-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 181d1b9e31c668259d3798c521672afb8edd355c Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Sun Jul 21 13:16:24 2013 +0200 drm/i915: fix up gt init sequence fallout moved dev_priv->gt_lock initialization after use. Do the initialization much earlier with other spin lock initializations. Reported-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Cc: stable@vger.kernel.org (since the regressing patch is also cc: stable) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| | * | | drm/i915: fix hdmi portclock limitsDaniel Vetter2013-07-231-3/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 325b9d048810f7689ec644595061c0b700e64bce Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Apr 19 11:24:33 2013 +0200 drm/i915: fixup 12bpc hdmi dotclock handling I've errornously claimed that we don't yet support the hdmi 1.4 dotclocks > 225 MHz on Haswell. But a bug report and a closer look at the wrpll table showed that we've supported port clocks up to 300MHz. With the new code to dynamically compute wrpll limits we should have no issues going up to the full 340 MHz range of hdmi 1.4, so let's just use that to fix this regression. That'll allow 4k over hdmi for free! v2: Drop the random hunk that somehow slipped in. v3: Cantiga has the original HDMI dotclock limit of 165MHz. And also patch up the mode filtering. To do so extract the dotclock limits into a little helper function. v4: Use 300MHz (from Bspec) instead of 340MHz (upper limit for hdmi 1.3), apparently hw is not required to be able to drive the highest dotclocks. Suggested by Damien. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67048 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67030 Tested-by: Andreas Reis <andreas.reis@gmail.com> (v2) Cc: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | Merge branch 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie2013-07-268-122/+141
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into drm-fixes r600 dpm fixes, old school card dac fixes, lockup fixes endian fixes * 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux: drm/radeon/dpm: fix r600_enable_sclk_control() drm/radeon/dpm: implement force performance levels for rv6xx drm/radeon/dpm: fix displaygap programming on rv6xx drm/radeon/dpm: fix a typo in the rv6xx mclk setup drm/radeon: fix combios tables on older cards drm/radeon: improve dac adjust heuristics for legacy pdac drm/radeon: Another card with wrong primary dac adj drm/radeon: fix endian issues with DP handling (v3) drm/radeon/vm: only align the pt base to 32k drm/radeon: wait for 3D idle before using CP DMA
| | * | | | drm/radeon/dpm: fix r600_enable_sclk_control()Alex Deucher2013-07-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Actually program the correct register to enable engine clock scaling control. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| | * | | | drm/radeon/dpm: implement force performance levels for rv6xxAlex Deucher2013-07-263-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allows you to limit the selected power levels via sysfs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| | * | | | drm/radeon/dpm: fix displaygap programming on rv6xxAlex Deucher2013-07-261-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Need to use the driver state rather than the register state since the displays may not be enabled when the power state is programmed. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| | * | | | drm/radeon/dpm: fix a typo in the rv6xx mclk setupAlex Deucher2013-07-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Need to set high for the last two entries. Looks like a copy and paste typo. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| | * | | | drm/radeon: fix combios tables on older cardsMark Kettenis2013-07-221-104/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Noticed that my old Radeon 7500 hung after printing drm: GPU not posted. posting now... when it wasn't selected as the primary card the BIOS. Some digging revealed that it was hanging in combios_parse_mmio_table() while parsing the ASIC INIT 3 table. Looking at the BIOS ROM for the card, it becomes obvious that there is no ASIC INIT 3 table in the BIOS. The code is just processing random garbage. No surprise it hangs! Why do I say that there is no ASIC INIT 3 table is the BIOS? This table is found through the MISC INFO table. The MISC INFO table can be found at offset 0x5e in the COMBIOS header. But the header is smaller than that. The COMBIOS header starts at offset 0x126. The standard PCI Data Structure (the bit that starts with 'PCIR') lives at offset 0x180. That means that the COMBIOS header can not be larger than 0x5a bytes and therefore cannot contain a MISC INFO table. I looked at a dozen or so BIOS images, some my own, some downloaded from: <http://www.techpowerup.com/vgabios/index.php?manufacturer=ATI&page=1> It is fairly obvious that the size of the COMBIOS header can be found at offset 0x6 of the header. Not sure if it is a 16-bit number or just an 8-bit number, but that doesn't really matter since the tables seems to be always smaller than 256 bytes. So I think combios_get_table_offset() should check if the requested table is present. This can be done by checking the offset against the size of the header. See the diff below. The diff is against the WIP OpenBSD codebase that roughly corresponds to Linux 3.8.13 at this point. But I don't think this bit of the code changed much since then. For what it is worth: Signed-off-by: Mark Kettenis <kettenis@openbsd.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
| | * | | | drm/radeon: improve dac adjust heuristics for legacy pdacAlex Deucher2013-07-221-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hopefully avoid more quirks in the future due to bogus vbios dac data. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
| | * | | | drm/radeon: Another card with wrong primary dac adjOndrej Zary2013-07-221-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hello, got another card with "too bright" problem: Sapphire Radeon VE 7000 DDR (VGA+S-Video) lspci -vnn: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV100 QY [Radeon 7000/VE] [1002:5159] (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited Sapphire Radeon VE 7000 DDR [174b:7c28] The patch below fixes the problem for this card. But I don't like the blacklist, couldn't some heuristic be used instead? The interesting thing is that the manufacturer is the same as the other card needing the same quirk. I wonder how many different types are broken this way. The "wrong" ps2_pdac_adj value that comes from BIOS on this card is 0x300. ==================== drm/radeon: Add primary dac adj quirk for Sapphire Radeon VE 7000 DDR Values from BIOS are wrong, causing too bright colors. Use default values instead. Signed-off-by: Ondrej Zary <linux@rainbow-software.org> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
| | * | | | drm/radeon: fix endian issues with DP handling (v3)Alex Deucher2013-07-221-4/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The atom interpreter expects data in LE format, so swap the message buffer as apprioriate. v2: properly handle non-dw aligned byte counts. v3: properly handle remainder Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Dong He <hedonghust@gmail.com> Cc: stable@vger.kernel.org
| | * | | | drm/radeon/vm: only align the pt base to 32kAlex Deucher2013-07-221-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fixes: https://bugs.freedesktop.org/show_bug.cgi?id=67016 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
| | * | | | drm/radeon: wait for 3D idle before using CP DMAAlex Deucher2013-07-221-1/+4
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure the 3D engine is idle before using CP DMA for bo copies. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: Marek Olšák <maraeo@gmail.com>
* | | | | Merge branch 'qxl-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2013-07-2613-508/+859
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull qxl drm fixes from Dave Airlie: "Okay as I warned, the qxl driver was running a bit free and loose with its ttm object reservations and the new lockdep enabled reservation tracking shone a bright light into it, it also with the new reservations mutexes hits a possible deadlock during boot. The first patch is a real fix to render the console correctly as the driver used to just drop irq renderering as too hard, this also fixes a sleeping while atomic warning. The other two patches are the big ugly ones that redo how the driver allocates objects and reserves them and makes things all work properly, I've tested this in a VM, and compared to the current code which hits a lockdep warning and the sleep while atomic warning before failing. So sorry this is coming in late, I should have tested qxl before merging the mutex code, but I'd rather just fix qxl with this than revert the reservations code at this point" * 'qxl-fixes' of git://people.freedesktop.org/~airlied/linux: qxl: convert qxl driver to proper use for reservations qxl: allow creation of pre-pinned objects and use for releases. drm/qxl: add delayed fb operations
| * | | | | qxl: convert qxl driver to proper use for reservationsDave Airlie2013-07-2410-464/+676
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent addition of lockdep support to reservations and their subsequent use by TTM showed up a number of potential problems with the way qxl was using TTM objects. a) it was allocating objects, and reserving them later without validating underneath the reservation, which meant in extreme conditions the objects could be evicted before the reservation ever used them. b) it was reserving objects straight after allocating them, but with no ability to back off should the reservations fail. It now allocates the necessary objects then does a complete reservation pass on them to avoid deadlocks. c) it had two lists per release tracking objects, unnecessary complicating the reservation process. This patch removes the dual object tracking, adds reservations ticket support to the release and fence object handling. It then ports the internal fb drawing code and the userspace facing ioctl to use the new interfaces properly, along with cleanup up the error path handling in some codepaths. Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | | | qxl: allow creation of pre-pinned objects and use for releases.Dave Airlie2013-07-247-24/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to fix an issue with reservations we need to create the releases as pre-pinned objects, this changes the placement interface and bo creation interface to allow creating pinned objects to save nested reservations later. This is just a stepping stone to main fix which follows to actually fix how qxl deals with reservations. Signed-off-by: Dave Airlie <airlied@redhat.com>
| * | | | | drm/qxl: add delayed fb operationsDave Airlie2013-07-242-21/+164
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to the nature of qxl hw we cannot queue operations while in an irq context, so we queue these operations as best we can until atomic allocations fail, and dequeue them later in a work queue. Daniel looked over the locking on the list and agrees it should be sufficent. The atomic allocs use no warn, as the last thing we want if we haven't memory to allocate space for a printk in an irq context is more printks. Signed-off-by: Dave Airlie <airlied@redhat.com>
* | | | | | Merge tag 'pm+acpi-3.11-rc3' of ↵Linus Torvalds2013-07-265-82/+16
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: "These are just two fixes, a revert of the would-be backlight fix that didn't work and an intel_pstate fix for two problems related to maximum P-state selection. Specifics: - Revert of the ACPI video commit that I hoped would help fix backlight problems related to Windows 8 compatibility on some systems. Unfortunately, it turned out to cause problems to happen too. - Fix for two problems in intel_pstate, a possible failure to respond to a load change on a quiet system and a possible failure to select the highest available P-state on some systems. From Dirk Brandewie" * tag 'pm+acpi-3.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: Revert "ACPI / video / i915: No ACPI backlight if firmware expects Windows 8" cpufreq / intel_pstate: Change to scale off of max P-state
| * | | | | | Revert "ACPI / video / i915: No ACPI backlight if firmware expects Windows 8"Rafael J. Wysocki2013-07-264-76/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We attempted to address a regression introduced by commit a57f7f9 (ACPICA: Add Windows8/Server2012 string for _OSI method.) after which ACPI video backlight support doesn't work on a number of systems, because the relevant AML methods in the ACPI tables in their BIOSes become useless after the BIOS has been told that the OS is compatible with Windows 8. That problem is tracked by the bug entry at: https://bugzilla.kernel.org/show_bug.cgi?id=51231 Commit 8c5bd7a (ACPI / video / i915: No ACPI backlight if firmware expects Windows 8) introduced for this purpose essentially prevented the ACPI backlight support from being used if the BIOS had been told that the OS was compatible with Windows 8 and the i915 driver was loaded, in which case the backlight would always be handled by i915. Unfortunately, however, that turned out to cause problems with backlight to appear on multiple systems with symptoms indicating that i915 was unable to control the backlight on those systems as expected. For this reason, revert commit 8c5bd7a, but leave the function acpi_video_backlight_quirks() introduced by it, because another commit on top of it uses that function. References: https://lkml.org/lkml/2013/7/21/119 References: https://lkml.org/lkml/2013/7/22/261 References: https://lkml.org/lkml/2013/7/23/429 References: https://lkml.org/lkml/2013/7/23/459 References: https://lkml.org/lkml/2013/7/23/81 References: https://lkml.org/lkml/2013/7/24/27 Reported-and-tested-by: James Hogan <james@albanarts.com> Reported-and-tested-by: Kamal Mostafa <kamal@canonical.com> Reported-and-tested-by: Jörg Otte <jrg.otte@gmail.com> Reported-and-tested-by: Steven Newbury <steve@snewbury.org.uk> Reported-by: Martin Steigerwald <Martin@lichtvoll.de> Reported-by: Kalle Valo <kvalo@adurom.com> Tested-by: Joerg Platte <jplatte@naasa.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | | cpufreq / intel_pstate: Change to scale off of max P-stateDirk Brandewie2013-07-231-6/+6
| |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change to using max P-state instead of max turbo P-state. This change resolves two issues. On a quiet system intel_pstate can fail to respond to a load change. On CPU SKUs that have a limited number of P-states and no turbo range intel_pstate fails to select the highest available P-state. This change is suitable for stable v3.9+ References: https://bugzilla.kernel.org/show_bug.cgi?id=59481 Reported-and-tested-by: Arjan van de Ven <arjan@linux.intel.com> Reported-and-tested-by: dsmythies@telus.net Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: 3.9+ <stable@vger.kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | | | | Merge tag 'fixes-for-linus' of ↵Linus Torvalds2013-07-262-21/+22
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "This is a largeish batch of fixes, mostly because I missed -rc2 due to travel/vacation. So in number these are a bit more than ideal unless you amortize them over two -rcs. Quick breakdown: - Defconfig updates - Making multi_v7_defconfig useful on more hardware to encourage single-image usage - Davinci and nomadik updates due to new code merged this merge window - Fixes for UART on Samsung platforms, both PM and clock-related - A handful of warning fixes from defconfig builds, including for max8925 backlight and pxamci (both with appropriate acks) - Exynos5440 fixes for LPAE configuration, PM - ...plus a bunch of other smaller changes all over the place I expect to switch to regressions-or-severe-bugs-only fixes from here on out" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (37 commits) mfd: max8925: fix dt code for backlight ARM: omap5: Only select errata 798181 if SMP ARM: EXYNOS: Update CONFIG_ARCH_NR_GPIO for Exynos ARM: EXYNOS: Fix low level debug support ARM: SAMSUNG: Save/restore only selected uart's registers ARM: SAMSUNG: Add SAMSUNG_PM config option to select pm ARM: S3C24XX: Add missing clkdev entries for s3c2440 UART ARM: multi_v7_defconfig: Select USB chipidea driver ARM: pxa: propagate errors from regulator_enable() to pxamci ARM: zynq: fix compilation warning ARM: keystone: fix compilation warning ARM: highbank: Only touch common coherency control register fields ARM: footbridge: fix overlapping PCI mappings dmaengine: shdma: fix a build failure on platforms with no DMA support ARM: STi: Set correct ARM ERRATAs. ARM: dts: STi: Fix pinconf setup for STiH416 serial2 ARM: nomadik: configure for NO_HZ and HRTIMERS ARM: nomadik: update defconfig base ARM: nomadik: Update MMC defconfigs ARM: davinci: defconfig: enable EDMA driver ...
| * | | | | | mfd: max8925: fix dt code for backlightOlof Johansson2013-07-261-20/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The device-tree enablement for max8925 has several problems, but besides the bindings being wrong (and not having seen review) there's also some bad coding practices on how to fill in the platform_data from device tree. I came across this since it causes a warning when compiling mmp2_defconfig, and instead of doing the minimal fix to silence the warning, I restructured the code a bit. This silences the warning: drivers/video/backlight/max8925_bl.c: In function 'max8925_backlight_probe': drivers/video/backlight/max8925_bl.c:177:3: warning: statement with no effect [-Wunused-value] Note that the bindings themselves need to be revisited too, but that will affect more than just the backlight driver and is best done separately; this just fixes the bad code for the backlight driver. Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Olof Johansson <olof@lixom.net>
| * | | | | | ARM: pxa: propagate errors from regulator_enable() to pxamciArnd Bergmann2013-07-231-1/+1
| |/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The em_x270_mci_setpower() and em_x270_usb_hub_init() functions call regulator_enable(), which may return an error that must be checked. This changes the em_x270_usb_hub_init() function to bail out if it fails, and changes the pxamci_platform_data->setpower callback so that the a failed em_x270_mci_setpower call can be propagated by the pxamci driver into the mmc core. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Mike Rapoport <mike@compulab.co.il> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Chris Ball <cjb@laptop.org> [olof: fixed order of regulator_enable() and test in em_x270_usb_hub_init] Signed-off-by: Olof Johansson <olof@lixom.net>
* | | | | | Merge tag 'usb-3.11-rc3' of ↵Linus Torvalds2013-07-2631-68/+161
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of USB fixes for 3.11-rc3. Lots of little things, nothing major. A number of new device ids, build fixes for DMA, and a bunch of other minor things. All of these have been in the linux-next tree" * tag 'usb-3.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (40 commits) usb: Clear both buffers when clearing a control transfer TT buffer. usb/gadget: free opts struct on error recovery USB: mos7840: fix memory leak in open usb: serial: option.c: remove ONDA MT825UP product ID fromdriver usb: serial: option: add Olivetti Olicard 200 usb: serial: option: blacklist ONDA MT689DC QMI interface xhci: fix null pointer dereference on ring_doorbell_for_active_rings usb: host: xhci: Enable XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0 usb: fix build warning in pci-quirks.h when CONFIG_PCI is not enabled usb: xhci: Mark two functions __maybe_unused xhci: Avoid NULL pointer deref when host dies. usb: serial: option: Add ONYX 3G device support USB: ti_usb_3410_5052: fix dynamic-id matching usb: option: add TP-LINK MA260 USB: option: add D-Link DWM-152/C1 and DWM-156/C1 USB: EHCI: Fix resume signalling on remote wakeup USB: cp210x: add MMB and PI ZigBee USB Device Support usb: cp210x support SEL C662 Vendor/Device USB: option: append Petatel NP10T device to GSM modems list USB: misc: Add Manhattan Hi-Speed USB DVI Converter to sisusbvga ...
| * | | | | | usb: Clear both buffers when clearing a control transfer TT buffer.William Gulland2013-07-251-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Control transfers have both IN and OUT (or SETUP) packets, so when clearing TT buffers for a control transfer it's necessary to send two HUB_CLEAR_TT_BUFFER requests to the hub. Signed-off-by: William Gulland <wgulland@google.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb/gadget: free opts struct on error recoveryAndrzej Pietrasiewicz2013-07-256-12/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix memory leaks introduced in commits: 40d133d7f542616cf9538508a372306e626a16e9 usb: gadget: f_ncm: convert to new function interface with backward compatibility fee562a6450b7806f1fbbe1469a67b5395b5c10a usb: gadget: f_ecm: convert to new function interface with backward compatibility fcbdf12ebef73a6069e2a1aada1e546fb578a4aa usb: gadget: f_phonet: convert to new function interface with backward compatibility b29002a157940752dfed2c488b2011f63f007d71 usb: gadget: f_eem: convert to new function interface with backward compatibility 8cedba7c73af1369599b1111639cfeb66fe13aaa usb: gadget: f_subset: convert to new function interface with backward compatibility f466c6353819326873fa48a02c6f2d7c903240d6 usb: gadget: f_rndis: convert to new function interface with backward compatibility Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | USB: mos7840: fix memory leak in openJohan Hovold2013-07-251-8/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allocated urbs and buffers were never freed on errors in open. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: serial: option.c: remove ONDA MT825UP product ID fromdriverEnrico Mioso2013-07-251-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some (very few) early devices like mine, where not exposting a proper CDC descriptor. This was fixed with an immediate firmware update from the vendor, and pre-installed on newer devices. So actual devices can be driven by cdc_acm.c + cdc_ether.c. Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: serial: option: add Olivetti Olicard 200Dan Williams2013-07-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Speaks AT on interfaces 5 (command & PPP) and 3 (secondary), other interface protocols are unknown. Signed-off-by: Dan Williams <dcbw@redhat.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | usb: serial: option: blacklist ONDA MT689DC QMI interfaceEnrico Mioso2013-07-251-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prevent the option driver from binding itself to the QMI/WWAN interface, making it unusable by the proper driver. Signed-off-by: enrico Mioso <mrkiko.rs@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | | Merge tag 'for-usb-linus-2013-07-25' of ↵Greg Kroah-Hartman2013-07-254-7/+14
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-linus Sarah writes: xhci: Bug fixes, now with more tags! Hi Greg, Here's five bug fixes for 3.12. The three patches are marked for stable. Two fix NULL pointer dereferences. The third marked for stable suppresses some serious log spam from unnecessary xHCI driver warnings, whenever an isochronous short packet happens on an xHCI 1.0 host. The other two patches fix build warnings. Sarah Sharp
| | * | | | | | xhci: fix null pointer dereference on ring_doorbell_for_active_ringsOleksij Rempel2013-07-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | in some cases where device is attched to xhci port and do not responding, for example ath9k_htc with stalled firmware, kernel will crash on ring_doorbell_for_active_rings. This patch check if pointer exist before it is used. This patch should be backported to kernels as old as 2.6.35, that contain the commit e9df17eb1408cfafa3d1844bfc7f22c7237b31b8 "USB: xhci: Correct assumptions about number of rings per endpoint" Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
| | * | | | | | usb: host: xhci: Enable XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0George Cherian2013-07-252-1/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Xhci controllers with hci_version > 0.96 gives spurious success events on short packet completion. During webcam capture the "ERROR Transfer event TRB DMA ptr not part of current TD" was observed. The same application works fine with synopsis controllers hci_version 0.96. The same issue is seen with Intel Pantherpoint xhci controller. So enabling this quirk in xhci_gen_setup if controller verion is greater than 0.96. For xhci-pci move the quirk to much generic place xhci_gen_setup. Note from Sarah: The xHCI 1.0 spec changed how hardware handles short packets. The HW will notify SW of the TRB where the short packet occurred, and it will also give a successful status for the last TRB in a TD (the one with the IOC flag set). On the second successful status, that warning will be triggered in the driver. Software is now supposed to not assume the TD is not completed until it gets that last successful status. That means we have a slight race condition, although it should have little practical impact. This patch papers over that issue. It's on my long-term to-do list to fix this race condition, but it is a much more involved patch that will probably be too big for stable. This patch is needed for stable to avoid serious log spam. This patch should be backported to kernels as old as 3.0, that contain the commit ad808333d8201d53075a11bc8dd83b81f3d68f0b "Intel xhci: Ignore spurious successful event." The patch will have to be modified for kernels older than 3.2, since that kernel added the xhci_gen_setup function for xhci platform devices. The correct conflict resolution for kernels older than 3.2 is to set XHCI_SPURIOUS_SUCCESS in xhci_pci_quirks for all xHCI 1.0 hosts. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
| | * | | | | | usb: fix build warning in pci-quirks.h when CONFIG_PCI is not enabledRandy Dunlap2013-07-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix warning when CONFIG_PCI is not enabled (from commit 296365781903226a3fb8758901eaeec09d2798e4). drivers/usb/host/pci-quirks.h: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Moiz Sonasath <m-sonasath@ti.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| | * | | | | | usb: xhci: Mark two functions __maybe_unusedOlof Johansson2013-07-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Resolves the following build warnings: drivers/usb/host/xhci.c:332:13: warning: 'xhci_msix_sync_irqs' defined but not used [-Wunused-function] drivers/usb/host/xhci.c:3901:12: warning: 'xhci_change_max_exit_latency' defined but not used [-Wunused-function] These functions are not always used, and since they're marked static they will produce build warnings: - xhci_msix_sync_irqs is only used with CONFIG_PCI. - xhci_change_max_exit_latency is a little more complicated with dependencies on CONFIG_PM and CONFIG_PM_RUNTIME. Instead of building a bigger maze of ifdefs in this code, I've just marked both with __maybe_unused. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
| | * | | | | | xhci: Avoid NULL pointer deref when host dies.Sarah Sharp2013-07-251-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the host controller fails to respond to an Enable Slot command, and the host fails to respond to the register write to abort the command ring, the xHCI driver will assume the host is dead, and call usb_hc_died(). The USB device's slot_id is still set to zero, and the pointer stored at xhci->devs[0] will always be NULL. The call to xhci_check_args in xhci_free_dev should have caught the NULL virt_dev pointer. However, xhci_free_dev is designed to free the xhci_virt_device structures, even if the host is dead, so that we don't leak kernel memory. xhci_free_dev checks the return value from the generic xhci_check_args function. If the return value is -ENODEV, it carries on trying to free the virtual device. The issue is that xhci_check_args looks at the host controller state before it looks at the xhci_virt_device pointer. It will return -ENIVAL because the host is dead, and xhci_free_dev will ignore the return value, and happily dereference the NULL xhci_virt_device pointer. The fix is to make sure that xhci_check_args checks the xhci_virt_device pointer before it checks the host state. See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1203453 for further details. This patch doesn't solve the underlying issue, but will ensure we don't see any more NULL pointer dereferences because of the issue. This patch should be backported to kernels as old as 3.1, that contain the commit 7bd89b4017f46a9b92853940fd9771319acb578a "xhci: Don't submit commands or URBs to halted hosts." Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Reported-by: Vincent Thiele <vincentthiele@gmail.com> Cc: stable@vger.kernel.org