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2011-12-20drm/radeon: no need to check all relocs for duplicatesChristian König
Only check the previously checked relocs for duplicates. Also leaving the handle uninitialized isn't such a good idea. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/radeon: fix debugfs handling v3Christian König
Having registered debugfs files globally causes the files to not show up on the second, third etc.. card in the system. v2: fix crash on module unloading v3: fix space indentation Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500/oaktrail: panel display quality fixAlan Cox
The GCT setup was used on Moorestown. The Oaktrail version uses a normal PC interface. That means we must also honour the dither info from the BIOS data. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Oaktrail fixesAlan Cox
The move to connectors breaks Oaktrail again if we have memory poisoning enabled. Fix this. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20Merge tag 'v3.2-rc6' of /home/airlied/devel/kernel/linux-2.6 into drm-core-nextDave Airlie
Merge in the upstream tree to bring in the mainline fixes. Conflicts: drivers/gpu/drm/exynos/exynos_drm_fbdev.c drivers/gpu/drm/nouveau/nouveau_sgdma.c
2011-12-20gma500: Final enables for OaktrailAlan Cox
This switches the ifdef to match the Kconfig so that Oaktrail probing occurs and adds some additional minor bulletproofing. Tested on a Fujtisu Stylistic Q550 internal display. HDMI might work but that remains to be seen. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: SDVO DDC bus guessing isn't working so hardcode it insteadPatrik Jakobsson
We currently don't have support for parsing SDVO mappings from BIOS so we're guessing the bus switch parameter. This isn't working so hardcode it to a configuration known to work on most poulsbo hardware. Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Convert Oaktrail to work with new output handlingPatrik Jakobsson
Replace psb_intel_output with psb_intel_encoder and psb_intel_connector Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> [Changed Moorestown reference to Oaktrail] Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Convert Cedarview to work with new output handlingPatrik Jakobsson
Replace psb_intel_output with psb_intel_encoder and psb_intel_connector. Things will need to be cleaned up and tested so consider this an initial patch for Cedarview. Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Replace SDVO code with slightly modified version from i915Patrik Jakobsson
Our current SDVO implementation is not working properly, so replace it with a modified version of the i915. Further testing and debugging is needed to make sure we can handle the different SDVO setups and wiring. Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Add support for Intel GMBUSPatrik Jakobsson
Before we integrate the new SDVO code we need GMBUS support Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Convert PSB LVDS to new output handlingPatrik Jakobsson
LVDS for PSB now uses psb_intel_encoder and psb_intel_connectors instead of psb_intel_output. i2c_bus and ddc_bus are moved to lvds_priv. There was also a pointer to mode_dev (for no obvious reason) that we now get directly from dev_priv. Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Fix encoder type checking for connectorsPatrik Jakobsson
Fix cases where we need to know what encoder type is behind a given connector. Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Remove psb_intel_output from ddc_probe and ddc_get_modesPatrik Jakobsson
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20gma500: Initial support for our encoder and connector structsPatrik Jakobsson
First step towards adding i915 alike encoder and connector abstractions. This will make life easier when adding i915 output code into our driver. It also removes the old psb_intel_output struct. Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20staging/gma500: fixup staging code to build following core changes.Dave Airlie
This just fixes up the staging code to keep building. Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: Replace pitch with pitches[] in drm_framebufferVille Syrjälä
Otherwise each driver would need to keep the information inside their own framebuffer object structure. Also add offsets[]. BOs on the other hand are driver specific, so those can be kept in driver specific structures. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: Check that the requested pixel format is validVille Syrjälä
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: plane: Check that the fb pixel format is supported by the planeVille Syrjälä
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: plane: Make 'formats' parameter to drm_plane_init() constVille Syrjälä
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: plane: Check crtc coordinates against integer overflows in setplane ioctlVille Syrjälä
Help drivers a little by guaranteeing that crtc_x+crtc_w and crtc_y+crtc_h don't overflow. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: plane: Check source coordinatesVille Syrjälä
Make sure the source coordinates stay within the buffer. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: plane: Clear plane.crtc and plane.fb after disable_plane()Ville Syrjälä
These are the only indication to user space that the plane was disabled. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: Fix __user sparse warningsVille Syrjälä
Several pointers and casts were missing __user annotations. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: plane: mutex_unlock() was missingVille Syrjälä
Unlock the mode_config mutex if drm_plane_init() fails. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: fourcc: Use __u32 instead of u32Ville Syrjälä
drm_fourcc.h can be included from user space so use the appropriate types. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: Install drm_fourcc.hVille Syrjälä
Userspace needs this header. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm: Add a missing ')'Ville Syrjälä
The code happened to compile because the flag wasn't actually used yet. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm/intel: Fix initialization if startup happens in interlaced mode [v2]Christian Schmidt
My EFI BIOS starts the graphics card up in my projector's preferred EDID mode, 1080@60i. The Intel driver does not clear all the interlaced bits. This patch introduces a new PIPECONF_INTERLACE_MASK define and uses it to restore progressive mode. Signed-of-by: Christian Schmidt <schmidt@digadd.de> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20Fix wrong assumptions in cea_for_each_detailed_block v2Christian Schmidt
The current logic misunderstands the spec about CEA 18byte descriptors. First, the spec doesn't state "detailed timing descriptors" but "18 byte descriptors", so any data record could be stored, mixed timings and other data, just as in the standard EDID. Second, the lower four bit of byte 3 of the CEA record do not contain the number of descriptors, but "the total number of DTDs defining native formats in the whole EDID [...], starting with the first DTD in the DTD list (which starts in the base EDID block)." A device can of course support non-native formats. As such the number can't be used to determine n, and the existing code will filter non-timing 18byte descriptors anyway. Signed-off-by: Christian Schmidt <schmidt@digadd.de> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-20drm_edid_to_eld: check for CEA data blocks only from structure revision 3 onChristian Schmidt
CEA datablocks are only defined from revision 3 onwards. Only check for them if the revision says so. Signed-of-by: Christian Schmidt <schmidt@digadd.de> Tested-by: James Cloos <cloos@jhcloos.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-19drm/edid: support CEA video modes.Christian Schmidt
TFT/plasma televisions and projectors have become commonplace, and so has the use of PCs to drive them. Add the video modes specified by an EDID's CEA extension to the mode database for a connector. Before: [ 1.158869] [drm:drm_mode_debug_printmodeline], Modeline 19:"1920x1080i" 0 74250 1920 2448 2492 2640 1080 1084 1094 1125 0x40 0x15 [ 1.158875] [drm:drm_mode_debug_printmodeline], Modeline 18:"1920x1080i" 0 74250 1920 2008 2052 2200 1080 1084 1094 1125 0x48 0x15 [ 1.158882] [drm:drm_mode_debug_printmodeline], Modeline 20:"1920x1080" 24 74250 1920 2558 2602 2750 1080 1084 1089 1125 0x40 0x5 After: [ 1.144175] [drm:drm_mode_debug_printmodeline], Modeline 22:"1920x1080" 0 74250 1920 2448 2492 2640 1080 1084 1094 1125 0x40 0x15 [ 1.144179] [drm:drm_mode_debug_printmodeline], Modeline 21:"1920x1080" 0 74250 1920 2008 2052 2200 1080 1084 1094 1125 0x48 0x15 [ 1.144187] [drm:drm_mode_debug_printmodeline], Modeline 30:"1920x1080" 50 148500 1920 2448 2492 2640 1080 1084 1089 1125 0x40 0x5 [ 1.144190] [drm:drm_mode_debug_printmodeline], Modeline 29:"1920x1080" 60 148500 1920 2008 2052 2200 1080 1084 1089 1125 0x40 0x5 [ 1.144192] [drm:drm_mode_debug_printmodeline], Modeline 25:"1920x1080" 24 74250 1920 2558 2602 2750 1080 1084 1089 1125 0x40 0x5 [ 1.144195] [drm:drm_mode_debug_printmodeline], Modeline 24:"1280x720" 50 74250 1280 1720 1760 1980 720 725 730 750 0x40 0x5 [ 1.144198] [drm:drm_mode_debug_printmodeline], Modeline 23:"1280x720" 60 74250 1280 1390 1430 1650 720 725 730 750 0x40 0x5 [ 1.144201] [drm:drm_mode_debug_printmodeline], Modeline 27:"720x576" 50 27000 720 732 796 864 576 581 586 625 0x40 0xa [ 1.144203] [drm:drm_mode_debug_printmodeline], Modeline 26:"720x480" 60 27000 720 736 798 858 480 489 495 525 0x40 0xa [ 1.144206] [drm:drm_mode_debug_printmodeline], Modeline 28:"640x480" 60 25175 640 656 752 800 480 490 492 525 0x40 0xa Signed-off-by: Christian Schmidt <schmidt@digadd.de> Reviewed-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-16Linux 3.2-rc6Linus Torvalds
2011-12-16Revert "drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a"Linus Torvalds
This reverts commit eb1711bb94991e93669c5a1b5f84f11be2d51ea1. It blows up the i915 seqno tracking, resulting in the BUG_ON(seqno == 0); in i915_wait_request() triggering, which will cause lock-ups. See for example https://bugs.launchpad.net/ubuntu/+source/linux/+bug/903010 https://lkml.org/lkml/2011/12/14/395 Reported-requested-and-tested-by: Dirk Hohndel <dirk@hohndel.org> Reported-by: Richard Eames <Richard.Eames@flinders.edu.au> Reported-by: Rocko Requin <rockorequin@hotmail.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Keith Packard <keithp@keithp.com> Cc: Eric Anholt <eric@anholt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc32: Be less strict in matching %lo part of relocation. sbus: convert drivers/sbus/char/* to use module_platform_driver() bbc_i2c: Remove unneeded err variable sparc: Use kmemdup rather than duplicating its implementation
2011-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: ipv6: Check dest prefix length on original route not copied one in rt6_alloc_cow(). sch_gred: should not use GFP_KERNEL while holding a spinlock ipip, sit: copy parms.name after register_netdevice ipv6: Fix for adding multicast route for loopback device automatically. ssb: fix init regression with SoCs rtl8192{ce,cu,de,se}: avoid problems because of possible ERFOFF -> ERFSLEEP transition mac80211: fix another race in aggregation start fsl_pq_mdio: Clean up tbi address configuration ppp: fix pptp double release_sock in pptp_bind() net/fec: fix the use of pdev->id ath9k: fix check for antenna diversity support batman-adv: delete global entry in case of roaming batman-adv: in case of roaming mark the client with TT_CLIENT_ROAM Bluetooth: Correct version check in hci_setup btusb: fix a memory leak in btusb_send_frame() Bluetooth: bnep: Fix module reference Bluetooth: cmtp: Fix module reference Bluetooth: btmrvl: support Marvell Bluetooth device SD8797
2011-12-16Merge branches 'for-linus' and 'for-linus-3.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: unplug every once and a while Btrfs: deal with NULL srv_rsv in the delalloc inode reservation code Btrfs: only set cache_generation if we setup the block group Btrfs: don't panic if orphan item already exists Btrfs: fix leaked space in truncate Btrfs: fix how we do delalloc reservations and how we free reservations on error Btrfs: deal with enospc from dirtying inodes properly Btrfs: fix num_workers_starting bug and other bugs in async thread BTRFS: Establish i_ops before calling d_instantiate Btrfs: add a cond_resched() into the worker loop Btrfs: fix ctime update of on-disk inode btrfs: keep orphans for subvolume deletion Btrfs: fix inaccurate available space on raid0 profile Btrfs: fix wrong disk space information of the files Btrfs: fix wrong i_size when truncating a file to a larger size Btrfs: fix btrfs_end_bio to deal with write errors to a single mirror * 'for-linus-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: lower the dirty balance poll interval
2011-12-16Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linuxLinus Torvalds
* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: drm/i915/dp: Dither down to 6bpc if it makes the mode fit drm/i915: enable semaphores on per-device defaults drm/i915: don't set unpin_work if vblank_get fails drm/i915: By default, enable RC6 on IVB and SNB when reasonable iommu: Export intel_iommu_enabled to signal when iommu is in use drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL check drm/i915: prevent division by zero when asking for chipset power drm/i915: add PCH info to i915_capabilities drm/i915: set the right SDVO transcoder for CPT drm/i915: no-lvds quirk for ASUS AT5NM10T-I drm/i915: Treat pre-gen4 backlight duty cycle value consistently drm/i915: Hook up Ivybridge eDP drm/i915: add multi-threaded forcewake support
2011-12-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: HDA: Use LPIB Position fix for Intel SCH Poulsbo ALSA: hda: fix mute led polarity for HP laptops with buggy BIOS ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device ASoC: Fix hx4700 error handling to free gpios if snd_soc_register_card fails ASoC: WM8958: correctly show firmware magic on mismatch ASoC: mxs: Add appropriate MODULE_ALIAS() ASoC: mxs: Add missing MODULE_LICENSE("GPL") ASoC: Fix WM8996 24.576MHz clock operation ASoC: Include linux/module.h for smdk2443_wm9710 ASoC: Fix a typo in jive_wm8750 ASoC: Fix build dependency for SND_SOC_JZ4740_CODEC ASoC: Include linux/io.h for jz4740 codec
2011-12-16Merge branch 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6: gpio: Fix DA9052 GPIO build errors. gpio: mpc8xxx: don't allow input-only pins to be output for MPC5121 gpio-ml-ioh: Add the irq_disable/irq_enable hooks for ml-ioh irq chip gpio-ml-ioh: fix a bug in the interrupt handler gpio: pl061: drop extra check for NULL platform_data
2011-12-16Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: OMAP: rx51: fix USB ARM: OMAP: mcbsp: Fix possible memory corruption arm/imx: fix power button on imx51 babbage board ARM: imx: fix cpufreq build errors ARM: mx5: add __initconst for fec pdata MXC PWM: should active during DOZE/WAIT/DBG mode ARM: EXYNOS: Fix build error without CONFIG_LOCAL_TIMERS ARM: EXYNOS: Fix for stall in case of cpu hotplug or sleep ARM: S5PV210: Set 1000ns as PWM backlight period on SMDKV210 ARM: SAMSUNG: remove duplicated header include
2011-12-16Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-block: block: don't kick empty queue in blk_drain_queue() block/swim3: Locking fixes loop: Fix discard_alignment default setting cfq-iosched: fix cfq_cic_link() race confition cfq-iosched: free cic_index if blkio_alloc_blkg_stats fails cciss: fix flush cache transfer length cciss: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler loop: fix loop block driver discard and encryption comment block: initialize request_queue's numa node during
2011-12-16btrfs: lower the dirty balance poll intervalWu Fengguang
Tests show that the original large intervals can easily make the dirty limit exceeded on 100 concurrent dd's. So adapt to as large as the next check point selected by the dirty throttling algorithm. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-12-16drm/i915/dp: Dither down to 6bpc if it makes the mode fitAdam Jackson
Some active adaptors (VGA usually) only have two lanes at 2.7GHz. That's a maximum pixel clock of 144MHz at 8bpc, but 192MHz at 6bpc. Fixes Asus UX31 panel being black at startup due to no valid modes since dc22ee6fc18ce0f15424e753e8473c306ece95c1. v2: Rebased to current code, resulting in the fix applying to EDP panels as well. Also changed from spatio-temporal to just spatial dithering on pre-ironlake, to be conssitent (and less visual flicker) Signed-off-by: Adam Jackson <ajax@redhat.com> Signed-off-by: Eric Anholt <eric@anholt.net> Tested-by: Eric Anholt <eric@anholt.net> Tested-by: Dirk Hohndel <hohndel@infradead.org> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915: enable semaphores on per-device defaultsEugeni Dodonov
This adds a default setting for semaphores parameter, and enables semaphores by default on IVB. For now, as semaphores interaction with VTd causes random issues on SNB, we do not enable them by default. But they can still be enabled via the semaphores=1 kernel parameter. v2: enables semaphores on SNB when IO remapping is disabled, with base on Keith Packard patch. CC: Daniel Vetter <daniel.vetter@ffwll.ch> CC: Ben Widawsky <ben@bwidawsk.net> CC: Keith Packard <keithp@keithp.com> CC: Jesse Barnes <jbarnes@virtuousgeek.org> CC: Chris Wilson <chris@chris-wilson.co.uk> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42696 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=40564 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41353 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38862 Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915: don't set unpin_work if vblank_get failsJesse Barnes
This fixes a race where we may try to finish a page flip and decrement the refcount even if our vblank_get failed and we ended up with a spurious flip pending interrupt. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=34211. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915: By default, enable RC6 on IVB and SNB when reasonableKeith Packard
RC6 should always work on IVB, and should work on SNB whenever IO remapping is disabled. RC6 never works on Ironlake. Make the default value for the parameter follow these guidelines. Setting the value to either 0 or 1 will force the specified behavior. Signed-off-by: Keith Packard <keithp@keithp.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=38567 Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu>
2011-12-16iommu: Export intel_iommu_enabled to signal when iommu is in useEugeni Dodonov
In i915 driver, we do not enable either rc6 or semaphores on SNB when dmar is enabled. The new 'intel_iommu_enabled' variable signals when the iommu code is in operation. Cc: Ted Phelps <phelps@gnusto.com> Cc: Peter <pab1612@gmail.com> Cc: Lukas Hejtmanek <xhejtman@fi.muni.cz> Cc: Andrew Lutomirski <luto@mit.edu> CC: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915/sdvo: Include LVDS panels for the IS_DIGITAL checkChris Wilson
We were checking whether the supplied edid matched the connector it was read from. We do this in case a DDC read returns an EDID for another device on a multifunction or otherwise interesting card. However, we failed to include LVDS as a digital device and so rejecting an otherwise valid EDID. Fixes the detection of the secondary SDVO LVDS panel on the Libretto W105. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Adam Jackson <ajax@redhat.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=39216 Signed-off-by: Keith Packard <keithp@keithp.com>
2011-12-16drm/i915: prevent division by zero when asking for chipset powerEugeni Dodonov
This prevents an in-kernel division by zero which happens when we are asking for i915_chipset_val too quickly, or within a race condition between the power monitoring thread and userspace accesses via debugfs. The issue can be reproduced easily via the following command: while ``; do cat /sys/kernel/debug/dri/0/i915_emon_status; done This is particularly dangerous because it can be triggered by a non-privileged user by just reading the debugfs entry. This issue was also found independently by Konstantin Belousov <kostikbel@gmail.com>, who proposed a similar patch. Reported-by: Konstantin Belousov <kostikbel@gmail.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: Keith Packard <keithp@keithp.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com> Signed-off-by: Keith Packard <keithp@keithp.com>
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