- 12 Apr, 2017 6 commits
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Maarten Lankhorst authored
MST doesn't support setting any properties, but it should still use the atomic helper for setting properties. Only path and tile properties are supported (read-only). Those are immutable, and handled by drm core. Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1491815239-10685-4-git-send-email-maarten.lankhorst@linux.intel.comReviewed-by:
Daniel Vetter <daniel.vetter@ffwll.ch>
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Maarten Lankhorst authored
Those properties are not hooked up on MST and were ignored. Best not expose them at all. Without this the next patch fails to start on X.org, because the DP-MST properties could not be read. Signed-off-by:
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Maarten Lankhorst authored
intel_tv has properties that are handled in the atomic core, but needs a modeset to update the properties inside the connector. The detect(), get_mode() and mode_valid() probe callbacks also depend on the connector state, which made this a good connector to convert first. It helped find all the issues when converting connectors to atomic. Because of these requirements, connector atomic_check() was added and connection_mutex is held during probing. The diffstat looks more favorable now. :) Changes since v1: - Add intel_encoder->swap_state to allow updating connector state. - Add intel_tv->format for detect_mode and mode_valid, updated on atomic commit. Changes since v2: - Fix typo in tv_choose_preferred modes function name. - Assignment of tv properties is done in core, so intel_tv only needs a atomic_check function. Thanks Ville! Changes since v3: - connection_mutex is now held in mode_valid() and get_modes(), this removes the need for caching parts of the connector_state. Changes since v4: - Use the new atomic connector check function. Signed-off-by:
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Maarten Lankhorst authored
They have been unused since 2010, after the code for intel_tv_save/restore was removed in the below commit: commit 6443170f Author: Eric Anholt <eric@anholt.net> Date: Fri Apr 2 15:24:27 2010 -0700 drm/i915: Remove dead KMS encoder save/restore code. This was brought over from UMS, and used for a while until we decided that drm_helper_resume_force_mode was easier and more reliable, since it didn't require duplicating all the code deleted here. We just forgot to delete all that junk for a while. Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
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Chris Wilson authored
We indirectly hold the runtime-pm for the intel_lrc_irq_handler() by virtue of dev_priv->gt.awake keeping a wakeref whilst the requests are busy. As this is not obvious from the code, add a comment. Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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Daniel Vetter authored
Maarten needs both the new connector->atomic_check hook and the connection_mutex locking changes in the probe helpers to be able to start merging the connector property conversion to atomic. Signed-off-by:
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- 11 Apr, 2017 22 commits
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Chris Wilson authored
Similar to commit 8490ae20 ("drm/i915: Suppress busy status for engines if wedged") we also want to report intel_engine_is_idle() as true as well as the main intel_engines_are_idle(), as we now check that the engines are idle when overwriting the HWS page. This is not true whilst we are setting the device as wedged, at least according to our bookkeeping, so we have to lie to ourselves! [ 383.588601] [drm:i915_reset [i915]] *ERROR* Failed to reset chip: -110 [ 383.588685] ------------[ cut here ]------------ [ 383.588755] WARNING: CPU: 0 PID: 12 at drivers/gpu/drm/i915/intel_engine_cs.c:226 intel_engine_init_global_seqno+0x222/0x290 [i915] [ 383.588757] WARN_ON(!intel_engine_is_idle(engine)) [ 383.588759] Modules linked in: ctr ccm snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core arc4 iwldvm mac80211 snd_pcm snd_hwdep snd_seq_midi snd_seq_midi_event rfcomm bnep snd_rawmidi intel_powerclamp coretemp dm_multipath iwlwifi crct10dif_pclmul snd_seq crc32_pclmul ghash_clmulni_intel btusb aesni_intel btrtl btbcm aes_x86_64 crypto_simd cryptd btintel snd_timer glue_helper bluetooth intel_ips snd_seq_device cfg80211 snd soundcore binfmt_misc mei_me mei dm_mirror dm_region_hash dm_log i915 intel_gtt i2c_algo_bit drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt fb_sys_fops cfbcopyarea prime_numbers ahci libahci drm e1000e [ 383.588851] CPU: 0 PID: 12 Comm: migration/0 Not tainted 4.11.0-rc5+ #207 [ 383.588853] Hardware name: LENOVO 514328U/514328U, BIOS 6QET44WW (1.14 ) 04/20/2010 [ 383.588855] Call Trace: [ 383.588866] dump_stack+0x63/0x90 [ 383.588871] __warn+0xc7/0xf0 [ 383.588876] warn_slowpath_fmt+0x4a/0x50 [ 383.588883] ? set_next_entity+0x821/0x910 [ 383.588943] intel_engine_init_global_seqno+0x222/0x290 [i915] [ 383.588998] __i915_gem_set_wedged_BKL+0xa4/0x190 [i915] [ 383.589003] ? __switch_to+0x215/0x390 [ 383.589008] multi_cpu_stop+0xbb/0xe0 [ 383.589012] ? cpu_stop_queue_work+0x90/0x90 [ 383.589016] cpu_stopper_thread+0x82/0x110 [ 383.589021] smpboot_thread_fn+0x137/0x190 [ 383.589026] kthread+0xf7/0x130 [ 383.589030] ? sort_range+0x20/0x20 [ 383.589034] ? kthread_park+0x90/0x90 [ 383.589040] ret_from_fork+0x2c/0x40 Fixes: 2ca9faa5 ("drm/i915: Assert the engine is idle before overwiting the HWS") Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170411190042.25662-1-chris@chris-wilson.co.uk
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Daniele Ceraolo Spurio authored
Technically speaking, the context size is per engine class, not per instance. v2: Add MISSING_CASE (Tvrtko) v3: Rebased v4: Restore the interface back to hiding the class lookup (Chris) Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by:
Oscar Mateo <oscar.mateo@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1491905472-16189-1-git-send-email-oscar.mateo@intel.comReviewed-by:
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Chris Wilson authored
In places, we assume that RCS exists. This has been true forever, but let us catch this failure during bringup by adding an explicit check that we do have an RCS engine. v2: Make use of HAS_ENGINE (Tvrtko) Signed-off-by:
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Jani Nikula authored
Don't clobber intel_dp->sink_count with the raw value. Suggested-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/37d3222115172922fcd5ab038238359935bd561f.1491485983.git.jani.nikula@intel.com
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Jani Nikula authored
This is what we have the readb and writeb variants for. Do some minor return value and variable cleanup while at it. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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Jani Nikula authored
Localize link_rate_index to the if block, and rename to just index to reduce indent. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Jani Nikula authored
The source might not support as many lanes as the sink, or the link training might have failed at higher lane counts. Take these into account. Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Jani Nikula authored
These are the theoretical maximums common for source and sink. These are the maximums we should start with. They may be degraded in case of link training failures, and the dynamic link values are stored separately. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Jani Nikula authored
If we modify these on the fly depending on the link conditions, don't pretend they are sink properties. Some link vs. sink confusion still remains, but we'll take care of them in follow-up patches. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Jani Nikula authored
In link training fallback, we're trying to find a rate that we know is in a sorted array of common link rates. We don't need to limit the array using the max rate. For test request, the DP CTS doesn't say we should limit the rate based on earlier fallback. This lets us get rid of intel_dp_link_rate_index() and use intel_dp_rate_index() instead. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Jani Nikula authored
Now that source rates are static and sink rates are updated whenever DPCD is updated, we can do and cache the intersection of them whenever sink rates are updated. This reduces code complexity, as we don't have to keep calling the functions to intersect. We also get rid of several common rates arrays on stack. Limiting the common rates by a max link rate can be done by picking the first N elements of the cached common rates. v2: get rid of the local common_rates variable (Manasi) v3: don't clobber cached eDP rates on short pulse (Ville) Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Jani Nikula authored
Looking at DPCD DP_MAX_LINK_RATE may be completely bogus for eDP 1.4 which is allowed to use link rate select method and have 0 in max link rate. With this change, it makes sense to store the max rate as the actual rate rather than as a bw code. Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by:
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Chris Wilson authored
We want to refer to the index of the engine consistently throughout the userspace ABI. We already have such an index through the execbuffer engine specifier, that needs to be able to refer to each engine specifically, so rename it the index to uabi_id to reflect its generality beyond execbuf. Signed-off-by:
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Oscar Mateo authored
There are some properties that logically belong to the engine class, and some that belong to the engine instance. Make it explicit. v2: Commit message (Tvrtko) v3: - Rebased - Exec/uabi id should be per instance (Chris) v4: - Rebased - Avoid re-ordering fields for smaller diff (Tvrtko) - Bug on oob access to the class array (Michal) v5: Bug on the right thing (Michal) v6: Rebased Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by:
Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by:
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Oscar Mateo authored
Not really needed, but makes the next change a little bit more compact. v2: - Use zero-based numbering for engine names: xcs0, xcs1.. xcsN (Tvrtko, Chris) - Make sure the mock engine name is null-terminated (Tvrtko, Chris) v3: Because I'm stupid (Chris) v4: Verify engine name wasn't truncated (Michal) v5: - Kill the warning in mock engine (Chris) Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by:
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Oscar Mateo authored
If we needed to do something different for the init functions, we could always look at the engine instance to make the distinction. But, in any case, the two functions are virtually identical already (please notice that BSD2_RING is only used from gen8 onwards). With this, the init functions depends excusively on the engine class (a fact that we will use soon). v2: Commit message Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by:
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Daniele Ceraolo Spurio authored
In such a way that vcs and vcs2 are just two different instances (0 and 1) of the same engine class (VIDEO_DECODE_CLASS). v2: Align the instance types (Tvrtko) v3: Don't use enums for bspec-defined stuff (Michal) Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Chris Wilson authored
While we do hold the forcewake for legacy ringbuffer initialisation, we don't guard our access with the uncore.lock spinlock. In theory, we only initialise when no others should be accessing the same mmio cachelines, but in practice be safe as this is an infrequently used path and not worth risky micro-optimisations. Signed-off-by:
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Chris Wilson authored
Since the sandybridge_pcode_read() may be called from skl_pcode_request() inside an atomic context (with preempt disabled), we should avoid hitting any sleeping paths. Currently is being called with a 500ms timeout, irrespective of being inside an atomic context or not. This is reduced down to 500us to play nice with the atomic context, and that appears to be sufficient to keep BAT happy (we have a DRM_ERROR should it timeout), i.e. we do not see any 500us pcode timeouts for normal use. So leave it as a pure spin without having to introduce new code paths to separate atomic/normal contexts. Signed-off-by:
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Chris Wilson authored
We acquire the forcewake and use I915_READ_FW instead for the atomic wait within intel_uncore_wait_for_register. However, this still leaves us vulnerable to concurrent mmio access to the register, which can cause system hangs on gen7. The protection is to acquire uncore.lock around each register, so lets add it back. v2: Wrap __intel_wait_for_register_fw() to re-use its atomic wait_for loop and spare adding another for ourselves. v3: Add might_sleep() annotation Signed-off-by:
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Chris Wilson authored
submit_request() is called from an atomic context, it's not allowed to sleep. We have to be careful in our parameters to intel_uncore_wait_for_register() to limit ourselves to the atomic wait loop and not incur the wrath of our warnings. Fixes: 6976e74b ("drm/i915: Don't allow overuse of __intel_wait_for_register_fw()") Signed-off-by:
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Chris Wilson authored
Allow the caller to use the fast_timeout_us to specify how long to wait within the atomic section, rather than transparently switching to a sleeping loop for larger values. This is required as some callsites may need a long wait and are in an atomic section. v2: Reinforce kerneldoc fast_timeout_us limit with a GEM_BUG_ON Signed-off-by:
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- 10 Apr, 2017 9 commits
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git://people.freedesktop.org/~robclark/linuxDave Airlie authored
Noteworthy changes this time: 1) 4k support for newer chips (ganging up hwpipes and mixers) 2) using OPP bindings for gpu 3) more prep work towards per-process pagetables * 'msm-next' of git://people.freedesktop.org/~robclark/linux: (47 commits) msm/drm: gpu: Dynamically locate the clocks from the device tree drm/msm: gpu: Use OPP tables if we can drm/msm: Hard code the GPU "slow frequency" drm/msm: Add MSM_PARAM_GMEM_BASE drm/msm: Reference count address spaces drm/msm: Make sure to detach the MMU during GPU cleanup drm/msm/mdp5: Enable 3D mux in mdp5_ctl drm/msm/mdp5: Reset CTL blend registers before configuring them drm/msm/mdp5: Assign 'right' mixer to CRTC state drm/msm/mdp5: Stage border out on base stage if CRTC has 2 LMs drm/msm/mdp5: Stage right side hwpipes on Right-side Layer Mixer drm/msm/mdp5: Prepare Layer Mixers for source split drm/msm/mdp5: Configure 'right' hwpipe drm/msm/mdp5: Assign a 'right hwpipe' to plane state drm/msm/mdp5: Create mdp5_hwpipe_mode_set drm/msm/mdp5: Add optional 'right' Layer Mixer in CRTC state drm/msm/mdp5: Add a CAP for Source Split drm/msm/mdp5: Remove mixer/intf pointers from mdp5_ctl drm/msm/mdp5: Start using parameters from CRTC state drm/msm/mdp5: Add more stuff to CRTC state ...
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git://anongit.freedesktop.org/git/drm-miscDave Airlie authored
Last drm-misc-next pull req for 4.12 Core changes: - fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry) - drm_ioctl and drm_sysfs improved/gained documentation (Daniel) - [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander) - Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff (Daniel) - Add connector_atomic_check to check conn constraints on modeset (Maarten) - Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob) Driver changes: - meson moved to drm-misc (Neil) - Added support for Amlogic GX SoCs in dw-hdmi (Neil) - Rockchip unbind actually cleans up the things bind initializes (Jeffy) - A couple misc fixes in virtio, dw-hdmi NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx as well as the new synopsys media formats) * tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits) Revert "drm: Don't allow interruptions when opening debugfs/crc" drm: Only take cursor locks when the cursor plane exists drm/vmwgfx: Fix fbdev emulation using legacy functions drm/rockchip: Shutdown all crtcs when unbinding drm drm/rockchip: Reorder drm bind/unbind sequence drm/rockchip: analogix_dp: Disable clock when unbinding drm/rockchip: vop: Unprepare clocks when unbinding drm/rockchip: vop: Enable pm domain before vop_initial drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding drm/rockchip: cdn-dp: Don't try to release firmware when not loaded drm: bridge: analogix: Destroy connector & encoder when unbinding drm: bridge: analogix: Disable clock when unbinding drm: bridge: analogix: Unregister dp aux when unbinding drm: bridge: analogix: Detach panel when unbinding analogix dp drm: Don't allow interruptions when opening debugfs/crc drm/virtio: don't leak bo on drm_gem_object_init failure drm: bridge: dw-hdmi: fix input format/encoding from plat_data drm: omap: use common OF graph helpers drm: convert drivers to use drm_of_find_panel_or_bridge drm: convert drivers to use of_graph_get_remote_node ... -
Dave Airlie authored
Linux 4.11-rc6 drm-misc needs 4.11-rc5, may as well fix conflicts with rc6.
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git://people.freedesktop.org/~agd5f/linuxDave Airlie authored
Just some bug fixes and vega10 updates for 4.12. * 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux: drm/amdgpu: fix fence memory leak in wait_all_fence V2 drm/amdgpu: fix "fix 64bit division" drm/amd/powerplay: add fan controller table v11 support. drm/amd/powerplay: port newest process pptable code for vega10. drm/amdgpu: set vm size and block size by individual gmc by default (v3) drm/amdgpu: Avoid overflows/divide-by-zero in latency_watermark calculations. drm/amdgpu: Make display watermark calculations more accurate drm/radeon: fix typo in bandwidth calculation drm/radeon: Refuse to migrate a prime BO to VRAM. (v2) drm/radeon: Maintain prime import/export refcount for BOs drm/amdgpu: Refuse to pin or change acceptable domains of prime BOs to VRAM. (v2) drm/amdgpu: Fail fb creation from imported dma-bufs. (v2) drm/radeon: Fail fb creation from imported dma-bufs.
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Dave Airlie authored
Merge tag 'drm-intel-testing-2017-04-03' of git://anongit.freedesktop.org/git/drm-intel into drm-next Last 4.12 feature pile: GVT updates: - Add mdev attribute group for per-vgpu info - Time slice based vGPU scheduling QoS support (Gao Ping) - Initial KBL support for E3 server (Han Xu) - other misc. i915: - lots and lots of small fixes and improvements all over - refactor fw_domain code (Chris Wilson) - improve guc code (Oscar Mateo) - refactor cursor/sprite code, precompute more for less overhead in the critical path (Ville) - refactor guc/huc fw loading code a bit (Michal Wajdeczko) * tag 'drm-intel-testing-2017-04-03' of git://anongit.freedesktop.org/git/drm-intel: (121 commits) drm/i915: Update DRIVER_DATE to 20170403 drm/i915: Clear gt.active_requests before checking idle status drm/i915/uc: Drop use of MISSING_CASE on trivial enums drm/i915: make a few DDI functions static drm/i915: Combine reset_all_global_seqno() loops into one drm/i915: Remove redudant wait for each engine to idle from seqno wrap drm/i915: Wait for all engines to be idle as part of i915_gem_wait_for_idle() drm/i915: Move retire-requests into i915_gem_wait_for_idle() drm/i915/uc: Move fw path check to fetch_uc_fw() drm/i915/huc: Remove unused intel_huc_fini() drm/i915/uc: Add intel_uc_fw_fini() drm/i915/uc: Add intel_uc_fw_type_repr() drm/i915/uc: Move intel_uc_fw_status_repr() to intel_uc.h drivers: gpu: drm: i915L intel_lpe_audio: Fix kerneldoc comments drm/i915: Suppress busy status for engines if wedged drm/i915: Do request retirement before marking engines as wedged drm/i915: Drop verbose and archaic "ring" from our internal engine names drm/i915: Use a dummy timeline name for a signaled fence drm/i915: Ironlake do_idle_maps w/a may be called w/o struct_mutex drm/i915/guc: Take enable_guc_loading check out of GEM core code ...
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https://github.com/ckhu-mediatek/linux.git-tagsDave Airlie authored
This series is MT2701 DRM support. * 'drm-next-4.12' of https://github.com/ckhu-mediatek/linux.git-tags: drm/mediatek: add support for Mediatek SoC MT2701 drm/mediatek: update DSI sub driver flow for sending commands to panel drm/mediatek: add non-continuous clock mode and EOT packet control drm/mediatek: add dsi transfer function drm/mediatek: add dsi interrupt control drm/mediatek: cleaning up and refine drm/mediatek: update display module connections drm/mediatek: add BLS component drm/mediatek: add shadow register support drm/mediatek: add *driver_data for different hardware settings drm/mediatek: add helpers for coverting from the generic components dt-bindings: display: mediatek: update supported chips
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Michal Wajdeczko authored
This function should not be called with long timeouts in atomic context. Annotate it as might_sleep if timeout is longer than 10us. v2: fix comment (Michal) Signed-off-by:
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Michal Wajdeczko authored
These params are passed by value, const qualifiers are ignored any way. While around, unify timeout_ms type from long to int. Signed-off-by:
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Chris Wilson authored
The void *data passed to debugfs callbacks is actually the drm_i915_private pointer, so use it thusly and avoid the to_i915(dev) indirection. Signed-off-by:
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- 09 Apr, 2017 3 commits
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Linus Torvalds authored
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull CIFS fixes from Steve French: "This is a set of CIFS/SMB3 fixes for stable. There is another set of four SMB3 reconnect fixes for stable in progress but they are still being reviewed/tested, so didn't want to wait any longer to send these five below" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: Reset TreeId to zero on SMB2 TREE_CONNECT CIFS: Fix build failure with smb2 Introduce cifs_copy_file_range() SMB3: Rename clone_range to copychunk_range Handle mismatched open calls
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "A number of ARM fixes: - prevent oopses caused by dma_get_sgtable() and declared DMA coherent memory - fix boot failure on nommu caused by ID_PFR1 access - a number of kprobes fixes from Jon Medhurst and Masami Hiramatsu" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8665/1: nommu: access ID_PFR1 only if CPUID scheme ARM: dma-mapping: disallow dma_get_sgtable() for non-kernel managed memory arm: kprobes: Align stack to 8-bytes in test code arm: kprobes: Fix the return address of multiple kretprobes arm: kprobes: Skip single-stepping in recursing path if possible arm: kprobes: Allow to handle reentered kprobe on single-stepping
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