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2014-03-03drm/i915: fix pch pci device enumerationImre Deak1-14/+9
pci_get_class(class, from) drops the refcount for 'from', so the extra pci_dev_put we do on it will result in a use after free bug starting with the WARN below. Regression introduced in commit 6a9c4b35e6696a63805b6da5e4889c6986e9ee1b Author: Rui Guo <firemeteor@users.sourceforge.net> Date: Wed Jun 19 21:10:23 2013 +0800 drm/i915: Fix PCH detect with multiple ISA bridges in VM [ 164.338460] WARNING: CPU: 1 PID: 2094 at include/linux/kref.h:47 klist_next+0xae/0x110() [ 164.347731] CPU: 1 PID: 2094 Comm: modprobe Tainted: G O 3.13.0-imre+ #354 [ 164.356468] Hardware name: Intel Corp. VALLEYVIEW B0 PLATFORM/NOTEBOOK, BIOS BYTICRB1.X64.0062.R70.1310112051 10/11/2013 [ 164.368796] Call Trace: [ 164.371609] [<ffffffff816a32a6>] dump_stack+0x4e/0x7a [ 164.377447] [<ffffffff8104f75d>] warn_slowpath_common+0x7d/0xa0 [ 164.384238] [<ffffffff8104f83a>] warn_slowpath_null+0x1a/0x20 [ 164.390851] [<ffffffff8169aeae>] klist_next+0xae/0x110 [ 164.396777] [<ffffffff8130a110>] ? pci_do_find_bus+0x70/0x70 [ 164.403286] [<ffffffff813cb4a9>] bus_find_device+0x89/0xc0 [ 164.409719] [<ffffffff8130a373>] pci_get_dev_by_id+0x63/0xa0 [ 164.416238] [<ffffffff8130a4e4>] pci_get_class+0x44/0x50 [ 164.422433] [<ffffffffa034821f>] intel_dsm_detect+0x16f/0x1f0 [i915] [ 164.429801] [<ffffffffa03482ae>] intel_register_dsm_handler+0xe/0x10 [i915] [ 164.437831] [<ffffffffa02d30fe>] i915_driver_load+0xafe/0xf30 [i915] [ 164.445126] [<ffffffff8158a150>] ? intel_alloc_coherent+0x110/0x110 [ 164.452340] [<ffffffffa0148c07>] drm_dev_register+0xc7/0x150 [drm] [ 164.459462] [<ffffffffa014b23f>] drm_get_pci_dev+0x11f/0x1f0 [drm] [ 164.466554] [<ffffffff816abb81>] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 164.474287] [<ffffffffa02cf7a6>] i915_pci_probe+0x56/0x60 [i915] [ 164.481185] [<ffffffff8130a028>] pci_device_probe+0x78/0xf0 [ 164.487603] [<ffffffff813cd495>] driver_probe_device+0x155/0x350 [ 164.494505] [<ffffffff813cd74e>] __driver_attach+0x6e/0xa0 [ 164.500826] [<ffffffff813cd6e0>] ? __device_attach+0x50/0x50 [ 164.507333] [<ffffffff813cb2be>] bus_for_each_dev+0x6e/0xc0 [ 164.513752] [<ffffffff813ccefe>] driver_attach+0x1e/0x20 [ 164.519870] [<ffffffff813cc958>] bus_add_driver+0x138/0x260 [ 164.526289] [<ffffffffa0188000>] ? 0xffffffffa0187fff [ 164.532116] [<ffffffff813cde78>] driver_register+0x98/0xe0 [ 164.538558] [<ffffffffa0188000>] ? 0xffffffffa0187fff [ 164.544389] [<ffffffff813087b0>] __pci_register_driver+0x60/0x70 [ 164.551336] [<ffffffffa014b37d>] drm_pci_init+0x6d/0x120 [drm] [ 164.558040] [<ffffffffa0188000>] ? 0xffffffffa0187fff [ 164.563928] [<ffffffffa018806a>] i915_init+0x6a/0x6c [i915] [ 164.570363] [<ffffffff810002da>] do_one_initcall+0xaa/0x160 [ 164.576783] [<ffffffff8103b140>] ? set_memory_nx+0x40/0x50 [ 164.583100] [<ffffffff810ce7f5>] load_module+0x1fb5/0x2550 [ 164.589410] [<ffffffff810caab0>] ? store_uevent+0x40/0x40 [ 164.595628] [<ffffffff810cee7d>] SyS_init_module+0xed/0x100 [ 164.602048] [<ffffffff816b3c52>] system_call_fastpath+0x16/0x1b v2: simplify the loop further (Chris) Signed-off-by: Imre Deak <imre.deak@intel.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Reported-by: Jesse Barnes <jbarnes@virtuousgeek.org> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65652 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74161 Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03drm/i915: Resolving the memory region conflict for Stolen areaAkash Goel1-3/+16
There is a conflict seen when requesting the kernel to reserve the physical space used for the stolen area. This is because some BIOS are wrapping the stolen area in the root PCI bus, but have an off-by-one error. As a workaround we retry the reservation with an offset of 1 instead of 0. v2: updated commit message & the comment in source file (Daniel) Signed-off-by: Akash Goel <akash.goel@intel.com> Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org> Tested-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03drm/i915: use backlight legacy combination mode also for i915gm/i945gmJani Nikula1-2/+2
i915gm and i945gm also seem to use and need the legacy combination mode bit in BLC_PWM_CTL. v2: Also do this for i915gm (Ville). Reported-and-tested-by: Luis Ortega <luiorpe1@gmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75001 Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-03-03Merge 3.14-rc5 into driver-core-nextGreg Kroah-Hartman54-180/+415
We want the fixes in here.
2014-03-03Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds18-62/+107
Pull drm fixes from Dave Airlie: "Not a huge amount happening, some MAINTAINERS updates, radeon, vmwgfx and tegra fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/vmwgfx: avoid null pointer dereference at failure paths drm/vmwgfx: Make sure backing mobs are cleared when allocated. Update driver date. drm/vmwgfx: Remove some unused surface formats drm/radeon: enable speaker allocation setup on dce3.2 drm/radeon: change audio enable logic drm/radeon: fix audio disable on dce6+ drm/radeon: free uvd ring on unload drm/radeon: disable pll sharing for DP on DCE4.1 drm/radeon: fix missing bo reservation drm/radeon: print the supported atpx function mask MAINTAINERS: update drm git tree entry MAINTAINERS: add entry for drm radeon driver drm/tegra: Add guard to avoid double disable/enable of RGB outputs gpu: host1x: do not check previously handled gathers drm/tegra: fix typo 'CONFIG_TEGRA_DRM_FBDEV'
2014-03-03Merge branch 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie11-35/+72
into drm-fixes more radeon fixes * 'drm-fixes-3.14' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: enable speaker allocation setup on dce3.2 drm/radeon: change audio enable logic drm/radeon: fix audio disable on dce6+ drm/radeon: free uvd ring on unload drm/radeon: disable pll sharing for DP on DCE4.1 drm/radeon: fix missing bo reservation drm/radeon: print the supported atpx function mask
2014-03-03drm/i915: sprinkle staticDaniel Vetter2-7/+7
Apparently we've missed a few more than what Fengguang's 0-day tester recently reported in i915_irq.c ... Makes sparse happy again (ignore some spurious stuff about ksyms of exported functions). Cc: kbuild test robot <fengguang.wu@intel.com> Cc: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-03-02drm/vmwgfx: avoid null pointer dereference at failure pathsAlexey Khoroshilov1-16/+19
vmw_takedown_otable_base() and vmw_mob_unbind() check for potential vmw_fifo_reserve() failure and print error message, but then immediately dereference NULL pointer. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2014-03-02drm/vmwgfx: Make sure backing mobs are cleared when allocated. Update driver ↵Thomas Hellstrom2-3/+2
date. Backing mob contents is propagated to user-space, so make sure backing mobs are cleared when allocated. This also accidently fix rendering errors with celestia when emulating legacy mode. Also update driver date. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2014-03-02drm/vmwgfx: Remove some unused surface formatsThomas Hellstrom1-6/+1
These formats are deprecated. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
2014-02-28arm: dma-mapping: remove order parameter from arm_iommu_create_mapping()Marek Szyprowski3-7/+2
The 'order' parameter for IOMMU-aware dma-mapping implementation was introduced mainly as a hack to reduce size of the bitmap used for tracking IO virtual address space. Since now it is possible to dynamically resize the bitmap, this hack is not needed and can be removed without any impact on the client devices. This way the parameters for arm_iommu_create_mapping() becomes much easier to understand. 'size' parameter now means the maximum supported IO address space size. The code will allocate (resize) bitmap in chunks, ensuring that a single chunk is not larger than a single memory page to avoid unreliable allocations of size larger than PAGE_SIZE in atomic context. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
2014-02-28drm/radeon: use variable UVD clocksAlex Deucher2-5/+1
Now that Christian fixed the performance problems with the feedback buffer in mesa, we can enable variable UVD clocks. There are multiple UVD power states associated with different types and numbers of streams. This uses the appropriate state based on that information rather than always using the fastest UVD clocks which saves some power. One possible downside is that this may adversely affect decode benchmarks since these power states target specific playback requirements rather than maximum performance. If that becomes an issue, we can add a sysfs attribute to force the max UVD state. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-02-28drm/radeon: cleanup the fence ring locking codeChristian König6-61/+25
We no longer need to take the ring lock while checking for a gpu lockup, so just cleanup the code. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-28drm/radeon: improve ring lockup detection code v2Christian König2-15/+12
Use atomics and jiffies_64, so that we don't need to have the ring mutex locked any more and avoid wrap arounds. v2: fix some checkpatch warnings Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-27drm/radeon: enable speaker allocation setup on dce3.2Alex Deucher1-3/+0
Now that we disable audio while setting up the audio hw, we should be able to set this up without hangs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-02-27drm/radeon: change audio enable logicAlex Deucher5-27/+44
Disable audio around audio hw setup. This may avoid hangs on certain asics. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
2014-02-27drm/radeon: fix audio disable on dce6+Alex Deucher1-1/+1
Properly clear the enable bit when audio disable is requested. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org
2014-02-27drm/radeon: free uvd ring on unloadJerome Glisse3-2/+4
Need to free the uvd ring. Also reshuffle gart tear down to happen after uvd tear down. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Cc: stable@vger.kernel.org Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-27drm/radeon: disable pll sharing for DP on DCE4.1Alex Deucher1-1/+15
Causes display problems. We had already disabled sharing for non-DP displays. Based on a patch from: Niels Ole Salscheider <niels_ole@salscheider-online.de> bug: https://bugzilla.kernel.org/show_bug.cgi?id=58121 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-27drm/radeon: fix missing bo reservationChristian König1-0/+6
Otherwise we might get a crash here. Signed-off-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-27drm/radeon: print the supported atpx function maskAlex Deucher1-1/+2
Print the supported functions mask in addition to the version. This is useful in debugging PX problems since we can see what functions are available. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-27x86, cpufeature: Rename X86_FEATURE_CLFLSH to X86_FEATURE_CLFLUSHH. Peter Anvin1-1/+1
We call this "clflush" in /proc/cpuinfo, and have cpu_has_clflush()... let's be consistent and just call it that. Cc: Gleb Natapov <gleb@kernel.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Alan Cox <alan@linux.intel.com> Link: http://lkml.kernel.org/n/tip-mlytfzjkvuf739okyn40p8a5@git.kernel.org
2014-02-27x86: Use clflushopt in drm_clflush_virt_rangeRoss Zwisler1-1/+1
If clflushopt is available on the system, use it instead of clflush in drm_clflush_virt_range. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Link: http://lkml.kernel.org/r/1393441612-19729-5-git-send-email-ross.zwisler@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-27x86: Use clflushopt in drm_clflush_pageRoss Zwisler1-1/+7
If clflushopt is available on the system, use it instead of clflush in drm_clflush_page. Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Link: http://lkml.kernel.org/r/1393441612-19729-4-git-send-email-ross.zwisler@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-02-27Merge branch 'drm-next-3.15' of ↵Dave Airlie39-175/+1686
git://people.freedesktop.org/~deathsimple/linux into drm-next So this is the initial pull request for radeon drm-next 3.15. Highlights: - VCE bringup including DPM support - Few cleanups for the ring handling code * 'drm-next-3.15' of git://people.freedesktop.org/~deathsimple/linux: drm/radeon: cleanup false positive lockup handling drm/radeon: drop radeon_ring_force_activity drm/radeon: drop drivers copy of the rptr drm/radeon/cik: enable/disable vce cg when encoding v2 drm/radeon: add support for vce 2.0 clock gating drm/radeon/dpm: properly enable/disable vce when vce pg is enabled drm/radeon/dpm: enable dynamic vce state switching v2 drm/radeon: add vce dpm support for KV/KB drm/radeon: enable vce dpm on CI drm/radeon: add vce dpm support for CI drm/radeon: fill in set_vce_clocks for CIK asics drm/radeon/dpm: fetch vce states from the vbios drm/radeon/dpm: fill in some initial vce infrastructure drm/radeon/dpm: move platform caps fetching to a separate function drm/radeon: add callback for setting vce clocks drm/radeon: add VCE version parsing and checking drm/radeon: add VCE ring query drm/radeon: initial VCE support v4 drm/radeon: fix CP semaphores on CIK
2014-02-27Merge branch 'tda998x-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox ↵Dave Airlie1-219/+383
into drm-next Updates from Jean-Fracois for the TDA998x driver, which are on top of the fixes you have previously pulled, except these changes aren't intended for -rc, but the next merge window. Several of these are issues of correctness - passing more correct HDMI info packets, not reading registers in older chips documented as write only (despite appearing to be read/write in later chips). Others are code cleanups (using definitions rather than constants where we have them already in the kernel). Additional functionality is also added by way of optional support for the IRQ from the TDA998x, which allows us to avoid busy-waiting for the EDID reads. * 'tda998x-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox: drm/i2c: tda998x: always use the same device for all kernel messages drm/i2c: tda998x: adjust the audio clock divider for S/PDIF drm/i2c: tda998x: code optimization drm/i2c: tda998x: remove the unused variable ca_i2s drm/i2c: tda998x: make the audio code more readable drm/i2c: tda998x: use irq for connection status and EDID read drm/i2c: tda998x: always enable EDID read IRQ drm/i2c: tda998x: add DT documentation drm/i2c: tda998x: add DT support drm/i2c: tda998x: don't read write-only registers drm/i2c: tda998x: don't freeze the system at audio startup time drm/i2c: tda998x: change probe message origin drm/i2c: tda998x: code cleanup drm/i2c: tda998x: clean up error chip version checking drm/i2c: tda998x: check more I/O errors drm/i2c: tda998x: simplify the i2c read/write functions drm/i2c: tda998x: use ALSA IEC958 definitions and update audio frequency drm/i2c: tda998x: add the active aspect in HDMI AVI frame drm/i2c: tda998x: use HDMI constants
2014-02-27Merge tag 'drm-intel-next-2014-02-07' of ↵Dave Airlie34-1676/+3332
ssh://git.freedesktop.org/git/drm-intel into drm-next - Yet more steps towards atomic modeset from Ville. - DP panel power sequencing improvements from Paulo. - irq code cleanups from Ville. - 5.4 GHz dp lane clock support for bdw/hsw from Todd. - Clock readout support for hsw/bdw (aka fastboot) from Jesse. - Make pipe underruns report at ERROR level (Ville). This is to check our improved watermarks code. - Full ppgtt support from Ben for gen7. - More fbc fixes and improvements from Ville all over the place, unfortunately not yet enabled by default on more platforms. - w/a cleanups from Ville. - HiZ stall optimization settings (Chia-I Wu). - Display register mmio offset refactor patch from Antti. - RPS improvements for corner-cases from Jeff McGee. * tag 'drm-intel-next-2014-02-07' of ssh://git.freedesktop.org/git/drm-intel: (166 commits) drm/i915: Update rps interrupt limits drm/i915: Restore rps/rc6 on reset drm/i915: Prevent recursion by retiring requests when the ring is full drm/i915: Generate a hang error code drm/i915: unify FLIP_DONE macro names drm/i915: vlv: s/spin_lock_irqsave/spin_lock/ in irq handler drm/i915: factor out valleyview_pipestat_irq_handler drm/i915: vlv: don't unmask IIR[DISPLAY_PIPE_A/B_VBLANK] interrupt drm/i915: Reorganize display pipe register accesses drm/i915: Treat using a purged buffer as a source of EFAULT drm/i915: Convert EFAULT into a silent SIGBUS drm/i915: release mutex in i915_gem_init()'s error path drm/i915: check for oom when allocating private_default_ctx drm/i915/vlv: WA to fix Voltage not getting dropped to Vmin when Gfx is power gated. drm/i915: Get rid of acthd based guilty batch search drm/i915: Use hangcheck score to find guilty context drm/i915: Drop WaDisablePSDDualDispatchEnable:ivb for IVB GT2 drm/i915: Fix IVB GT2 WaDisableDopClockGating and WaDisablePSDDualDispatchEnable drm/i915: Don't access snooped pages through the GTT (even for error capture) drm/i915: Only print information for filing bug reports once ... Conflicts: drivers/gpu/drm/i915/intel_dp.c
2014-02-27Merge tag 'drm/dp-aux-for-3.15-rc1' of ↵Dave Airlie1-0/+395
git://anongit.freedesktop.org/tegra/linux into drm-next drm: DisplayPort AUX framework for v3.15-rc1 This series of patches implements a small framework that abstracts away some of the functionality that the DisplayPort AUX channel provides. It comes with a set of generic helpers that use the driver implementations to reduce code duplication. * tag 'drm/dp-aux-for-3.15-rc1' of git://anongit.freedesktop.org/tegra/linux: drm/dp: Allow registering AUX channels as I2C busses drm/dp: Add DisplayPort link helpers drm/dp: Add drm_dp_dpcd_read_link_status() drm/dp: Add AUX channel infrastructure
2014-02-26drm/dp: Allow registering AUX channels as I2C bussesThierry Reding1-7/+179
Implements an I2C-over-AUX I2C adapter on top of the generic drm_dp_aux infrastructure. It extracts the retry logic from existing drivers, which should help in porting those drivers to this new helper. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> --- Changes in v5: - move comments partially to to header file - keep MOT set between I2C messages - return -EPROTO on short reads Changes in v4: - fix typo "bitrate" -> "bit rate" Changes in v3: - add back DRM_DEBUG_KMS and DRM_ERROR messages - embed i2c_adapter within struct drm_dp_aux - fix typo in comment
2014-02-26drm/dp: Add DisplayPort link helpersThierry Reding1-0/+97
Add a helper to probe a DP link (read out the supported DPCD revision, maximum rate, link count and capabilities) as well as power up the DP link and configure it accordingly. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> --- Changes in v5: - export helpers Changes in v4: - fix a couple of typos in comments as pointed out by Alex Deucher Changes in v3: - split into drm_dp_link_power_up() and drm_dp_link_configure() - do not change sink state for DPCD versions earlier than 1.1 - sleep for 1-2 ms after setting local sink to D0 state - read and write consecutive registers where possible - read DPCD revision when link is probed - remove duplicate kerneldoc
2014-02-26drm/dp: Add drm_dp_dpcd_read_link_status()Thierry Reding1-0/+16
The function reads the link status (6 bytes starting at offset 0x202) from the DPCD so that it can be conveniently passed to other DPCD helpers. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2014-02-26drm/dp: Add AUX channel infrastructureThierry Reding1-0/+110
This is a superset of the current i2c_dp_aux bus functionality and can be used to transfer native AUX in addition to I2C-over-AUX messages. Helpers are provided to read and write the DPCD, either blockwise or byte-wise. Many of the existing helpers for DisplayPort take a copy of a portion of the DPCD and operate on that, without a way to write data back to the DPCD (e.g. for configuration of the link). Subsequent patches will build upon this infrastructure to provide common functionality in a generic way. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Thierry Reding <treding@nvidia.com> --- Changes in v5: - move comments partially to struct drm_dp_aux_msg in header file - return -EPROTO on short reads in DPCD helpers Changes in v4: - fix a typo in a comment Changes in v3: - reorder drm_dp_dpcd_writeb() arguments to be more intuitive - return number of bytes transferred in drm_dp_dpcd_write() - factor out drm_dp_dpcd_access() - describe error codes
2014-02-25Merge tag 'qcom-drivers-for-3.15' of ↵Arnd Bergmann1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/drivers Merge "qcom driver changes for v3.15" from Kumar Gala: We've split Qualcomm MSM support into legacy and multiplatform. These drivers are only relevant on the multiplatform supported SoCs so switch the Kconfig depends to ARCH_QCOM. * tag 'qcom-drivers-for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom: gpio: msm: switch Kconfig to ARCH_QCOM depends hwrng: msm: switch Kconfig to ARCH_QCOM depends power: reset: msm - switch Kconfig to ARCH_QCOM depends drm/msm: drop ARCH_MSM Kconfig depend tty: serial: msm: Enable building msm_serial for ARCH_QCOM
2014-02-21Merge tag 'pm+acpi-3.14-rc4' of ↵Linus Torvalds1-2/+24
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management fixes from Rafael Wysocki: "These include two fixes for recent regressions related to ACPI, a cpufreq fix for breakage overlooked by a previous fix commit, two intel_pstate fixes for stuff added during the 3.13 cycle that need to go into -stable, three fixes for older bugs that also are -stable candidates, ACPI video blacklist changes related to BIOSes that behave in a special way on Windows 8, several build fixes for CONFIG_PM_SLEEP unset in ACPI drivers and an ACPI driver cleanup. Specifics: - Fix for a recent probing regression in the nouveau driver introduced by an ACPI change related to the handling of _DSM from Jiang Liu. - Fix for a dock station sysfs attribute that stopped working correctly after recent changes in the ACPI core. - cpufreq fix taking care of broken code related to CPU removal and overlooked by a previous recent fix in that area. From Viresh Kumar. - Two intel_pstate fixes related to Baytrail support added during the 3.13 cycle (candidates for -stable) from Dirk Brandewie. - ACPI video fix removing duplicate brightness values from the _BCL table which makes its user space interface behave sanely. From Hans de Goede. - Fix for the powernow-k8 cpufreq driver making it initialize its per-CPU data structures correctly from Srivatsa S Bhat. - Fix for an obscure memory leak in the ACPI PCI interrupt allocation code (related to ISA) from Tomasz Nowicki. - ACPI video blacklist changes moving several systems that should use the native backlight interface instead of the ACPI one from the general ACPI _OSI blacklist the the ACPI video driver's blacklist where they belong. This consists of an ACPI video driver update from Aaron Lu and a revert of a previous commit adding systems to the ACPI _OSI blacklist requested by Takashi Iwai. - Several fixes for build issues in ACPI drivers occuring when CONFIG_PM_SLEEP is unset from Shuah Khan. - Fix for an sscanf() format string in the ACPI Smart Battery Subsystem (SBS) driver from Luis G.F" * tag 'pm+acpi-3.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: intel_pstate: Add support for Baytrail turbo P states intel_pstate: Use LFM bus ratio as min ratio/P state ACPI / nouveau: fix probing regression related to _DSM Revert "ACPI: Blacklist Win8 OSI for some HP laptop 2013 models" ACPI / video: Add systems that should favour native backlight interface ACPI / video: Filter the _BCL table for duplicate brightness values cpufreq: powernow-k8: Initialize per-cpu data-structures properly cpufreq: remove sysfs link when a cpu != policy->cpu, is removed ACPI / PCI: Fix memory leak in acpi_pci_irq_enable() ACPI / dock: Make 'docked' sysfs attribute work as documented ACPI / SBS: Fix incorrect sscanf() string ACPI / thermal: fix thermal driver compile error when CONFIG_PM_SLEEP is undefined ACPI / SBS: fix SBS driver compile error when CONFIG_PM_SLEEP is undefined ACPI / fan: fix fan driver compile error when CONFIG_PM_SLEEP is undefined ACPI / button: fix button driver compile error when CONFIG_PM_SLEEP is undefined ACPI / battery: fix battery driver compile error when CONFIG_PM_SLEEP is undefined ACPI / AC: fix AC driver compile error when CONFIG_PM_SLEEP is undefined
2014-02-21ACPI / nouveau: fix probing regression related to _DSMJiang Liu1-2/+24
Fix regression caused by commit b072e53, which breaks loading nouveau driver on optimus laptops. On some platforms, ACPI _DSM method (nouveau_op_dsm_muid, function 0) has special requirements on the fourth parameter, which is different from ACPI specifications. So revert to the private implementation to check availability of _DSM functions instead of using common acpi_check_dsm() interface. Fixes: b072e53b0a27 (ACPI / nouveau: replace open-coded _DSM code with helper functions) Reported-and-tested-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> [rjw: Subject] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-20Merge branch 'master' into for-nextJiri Kosina511-12333/+36298
2014-02-20Merge tag 'drm/for-3.14-rc3' of git://anongit.freedesktop.org/tegra/linux ↵Dave Airlie3-2/+13
into drm-fixes drm/tegra: Fixes for v3.14-rc3 These patches contain a fix for a potential hang when the RGB output is disabled twice, a typofix that prevents the framebuffer console from being restored on ->lastclose() and an optimization to do as little work as possible during host1x job submission. * tag 'drm/for-3.14-rc3' of git://anongit.freedesktop.org/tegra/linux: drm/tegra: Add guard to avoid double disable/enable of RGB outputs gpu: host1x: do not check previously handled gathers drm/tegra: fix typo 'CONFIG_TEGRA_DRM_FBDEV'
2014-02-19treewide: Fix typo in Documentation/DocBookMasanari Iida1-1/+1
This patch fix spelling typo in Documentation/DocBook. It is because .html and .xml files are generated by make htmldocs, I have to fix a typo within the source files. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2014-02-19Merge tag 'ttm-fixes-3.14-2014-02-18' of ↵Dave Airlie1-0/+1
git://people.freedesktop.org/~thomash/linux into drm-fixes Pull request of 2014-02-18 One compile fix and one memory leak. * tag 'ttm-fixes-3.14-2014-02-18' of git://people.freedesktop.org/~thomash/linux: drm/ttm: Fix memory leak in ttm_agp_backend.c drm/ttm: declare 'struct device' in ttm_page_alloc.h
2014-02-19Merge tag 'vmwgfx-fixes-3.14-2014-02-18' of ↵Dave Airlie9-71/+112
git://people.freedesktop.org/~thomash/linux into drm-fixes Pull request of 2014-02-18. Nothing special. The biggest change is adding a couple of command defines and packing the command data correctly. * tag 'vmwgfx-fixes-3.14-2014-02-18' of git://people.freedesktop.org/~thomash/linux: drm/vmwgfx: Fix command defines and checks drm/vmwgfx: Fix possible integer overflow drm/vmwgfx: Remove stray const drm/vmwgfx: unlock on error path in vmw_execbuf_process() drm/vmwgfx: Get maximum mob size from register SVGA_REG_MOB_MAX_SIZE drm/vmwgfx: Fix a couple of sparse warnings and errors
2014-02-18drm/radeon/ni: fix typo in dpm sq ramping setupAlex Deucher1-1/+1
inverted logic. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-18drm/radeon/si: fix typo in dpm sq ramping setupAlex Deucher1-1/+1
inverted logic. Noticed-by: Sylvain BERTRAND <sylware@legeek.net> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-18drm/radeon: fix CP semaphores on CIKChristian König3-5/+20
The CP semaphore queue on CIK has a bug that triggers if uncompleted waits use the same address while a signal is still pending. Work around this by using different addresses for each sync. Signed-off-by: Christian König <christian.koenig@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18drm/radeon: delete a stray tabDan Carpenter1-1/+1
Static checkers complain that probably curly braces were intended here, but actually it makes more sense to remove the extra tab. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18drm/radeon: fix display tiling setup on SIAlex Deucher1-6/+7
Apply the same logic as CI to SI for setting up the display tiling parameters. The num banks may vary per tiling index just like CI. Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=71488 https://bugs.freedesktop.org/show_bug.cgi?id=73946 https://bugs.freedesktop.org/show_bug.cgi?id=74927 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2014-02-18drm/radeon/dpm: reduce r7xx vblank mclk threshold to 200Alex Deucher1-8/+1
Most laptops seems to have a vblank period of less than 300 and mclk switching works fine. Drop the quirk and set the default threshold to 200. bug: https://bugzilla.kernel.org/show_bug.cgi?id=70701 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18drm/radeon: fill in DRM_CAPs for cursor sizeAlex Deucher1-0/+2
CIK parts are 128x128, older parts are 64x64. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18drm: add DRM_CAPs for cursor sizeAlex Deucher1-0/+12
Some hardware may not support standard 64x64 cursors. Add a drm cap to query the cursor size from the kernel. Some examples include radeon CIK parts (128x128 cursors) and armada (32x64 or 64x32). This allows things like device specific ddxes to remove asics specific logic and also allows xf86-video-modesetting to work properly with hw cursors on this hardware. Default to 64 if the driver doesn't specify a size. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Rob Clark <robdclark@gmail.com>
2014-02-18drm/radeon: unify bpc handlingAlex Deucher2-4/+5
We were already storing the bpc (bits per color) information in radeon_crtc, so just use that everywhere rather than calculating it everywhere we use it. This also allows us to change it in one place if we ever want to override it. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2014-02-18Merge 3.14-rc3 into driver-core-nextGreg Kroah-Hartman31-160/+266
We want those fixes here for testing and development. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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