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path: root/drivers/gpu/drm/i915/intel_pipe_crc.c
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2017-05-08drm/i915: use memdup_user_nulGeliang Tang1-10/+3
Use memdup_user_nul() helper instead of open-coding to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/6baf3aa45d0b5e0fd016b508bac905ebf8443aac.1493779294.git.geliangtang@gmail.com
2017-04-12drm/i915: Do not use lock all in hsw_trans_edp_pipe_A_crc_waMaarten Lankhorst1-3/+14
There is no need to acquire all locks here, doing a commit after forcing a modeset on the affected crtc is enough. Any other locks needed will be acquired as needed. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1491312297-18673-1-git-send-email-maarten.lankhorst@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-04-05drm: Remove drm_modeset_legacy_acquire_ctx and crtc->acquire_ctxDaniel Vetter1-1/+1
With all the callers of drm_modeset_lock_crtc gone, and all the places it was formerly used properly wiring the acquire ctx through, we can remove this. The only hidden context magic we still have is now the global one. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170403083304.9083-4-daniel.vetter@ffwll.ch
2017-03-08Merge tag 'drm-intel-next-2017-03-06' of ↵Dave Airlie1-1/+1
git://anongit.freedesktop.org/git/drm-intel into drm-next 4 weeks worth of stuff since I was traveling&lazy: - lspcon improvements (Imre) - proper atomic state for cdclk handling (Ville) - gpu reset improvements (Chris) - lots and lots of polish around fences, requests, waiting and everything related all over (both gem and modeset code), from Chris - atomic by default on gen5+ minus byt/bsw (Maarten did the patch to flip the default, really this is a massive joint team effort) - moar power domains, now 64bit (Ander) - big pile of in-kernel unit tests for various gem subsystems (Chris), including simple mock objects for i915 device and and the ggtt manager. - i915_gpu_info in debugfs, for taking a snapshot of the current gpu state. Same thing as i915_error_state, but useful if the kernel didn't notice something is stick. From Chris. - bxt dsi fixes (Umar Shankar) - bxt w/a updates (Jani) - no more struct_mutex for gem object unreference (Chris) - some execlist refactoring (Tvrtko) - color manager support for glk (Ander) - improve the power-well sync code to better take over from the firmware (Imre) - gem tracepoint polish (Tvrtko) - lots of glk fixes all around (Ander) - ctx switch improvements (Chris) - glk dsi support&fixes (Deepak M) - dsi fixes for vlv and clanups, lots of them (Hans de Goede) - switch to i915.ko types in lots of our internal modeset code (Ander) - byt/bsw atomic wm update code, yay (Ville) * tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel: (432 commits) drm/i915: Update DRIVER_DATE to 20170306 drm/i915: Don't use enums for hardware engine id drm/i915: Split breadcrumbs spinlock into two drm/i915: Refactor wakeup of the next breadcrumb waiter drm/i915: Take reference for signaling the request from hardirq drm/i915: Add FIFO underrun tracepoints drm/i915: Add cxsr toggle tracepoint drm/i915: Add VLV/CHV watermark/FIFO programming tracepoints drm/i915: Add plane update/disable tracepoints drm/i915: Kill level 0 wm hack for VLV/CHV drm/i915: Workaround VLV/CHV sprite1->sprite0 enable underrun drm/i915: Sanitize VLV/CHV watermarks properly drm/i915: Only use update_wm_{pre,post} for pre-ilk platforms drm/i915: Nuke crtc->wm.cxsr_allowed drm/i915: Compute proper intermediate wms for vlv/cvh drm/i915: Skip useless watermark/FIFO related work on VLV/CHV when not needed drm/i915: Compute vlv/chv wms the atomic way drm/i915: Compute VLV/CHV FIFO sizes based on the PM2 watermarks drm/i915: Plop vlv/chv fifo sizes into crtc state drm/i915: Plop vlv wm state into crtc_state ...
2017-03-02drm/i915: s/assert_spin_locked/lockdep_assert_held/Chris Wilson1-1/+1
assert_spin_locked() becomes an unconditionally compiled BUG_ON(), adding debug code right into the heart of critical routines like interrupt handlers. text data bss dec hex 1296480 19944 2272 1318696 141f28 before (lockdep disabled) 1295984 19944 2272 1318200 141d38 after 1336261 21139 3208 1360608 14c2e0 before (lockdep enabled) 1339920 21139 3208 1364267 14d12b after Small saving for release; hopefully more instructive in debug. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170302132801.599-1-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-03-01drm/i915: Remove i915_debugfs_unregister()Noralf Trønnes1-57/+11
drm_debugfs_cleanup() now removes all minor->debugfs_list entries automatically, so no need to do this explicitly. Additionally it uses debugfs_remove_recursive() to clean up the debugfs files, so no need for adding fake drm_info_node entries. Cc: daniel.vetter@intel.com Cc: jani.nikula@linux.intel.com Signed-off-by: Noralf Trønnes <noralf@tronnes.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170126225621.12314-20-noralf@tronnes.org
2017-01-18drm/i915: Avoid drm_atomic_state_put(NULL) on error pathsAnder Conselvan de Oliveira1-4/+6
The error paths in hsw_trans_edp_pipe_A_crc_wa() and intel_prepare_reset() would potentially call drm_atomic_state_put with a NULL state, which would lead to a NULL pointer dereference. Found by coverity. v2: Improve the error paths. (Chris) Fixes: 0853695c3ba4 ("drm: Add reference counting to drm_atomic_state") Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+ Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1484742868-9551-1-git-send-email-ander.conselvan.de.oliveira@intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-01-10drm/i915: Use new CRC debugfs APITomeu Vizoso1-12/+82
The core provides now an ABI to userspace for generation of frame CRCs, so implement the ->set_crc_source() callback and reuse as much code as possible with the previous ABI implementation. When handling the pageflip interrupt, we skip 1 or 2 frames depending on the HW because they contain wrong values. For the legacy ABI for generating frame CRCs, this was done in userspace but now that we have a generic ABI it's better if it's not exposed by the kernel. v2: - Leave the legacy implementation in place as the ABI implementation in the core is incompatible with it. v3: - Use the "cooked" vblank counter so we have a whole 32 bits. - Make sure we don't mess with the state of the legacy CRC capture ABI implementation. v4: - Keep use of get_vblank_counter as in the legacy code, will be changed in a followup commit. v5: - Skip first frame or two as it's known that they contain wrong data. - A few fixes suggested by Emil Velikov. v6: - Rework programming of the HW registers to preserve previous behavior. v7: - Address whitespace issue. - Added a comment on why in the implementation of the new ABI we skip the 1st or 2nd frames. v9: - Add stub for intel_crtc_set_crc_source. v12: - Rebased. - Remove stub for intel_crtc_set_crc_source and instead set the callback to NULL (Jani Nikula). v15: - Rebased. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Robert Foss <robert.foss@collabora.com> irq Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20170110134305.26326-2-tomeu.vizoso@collabora.com
2016-12-13drm/i915/debugfs: Move out pipe CRC codeTomeu Vizoso1-0/+939
In preparation to using a generic API in the DRM core for continuous CRC generation, move the related code out of i915_debugfs.c into a new file. Eventually, only the Intel-specific code will remain in this new file. v2: Rebased. v6: Rebased. v7: Fix whitespace issue. v9: Have intel_display_crc_init accept a drm_i915_private instead. v12: Rebased. Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1481545788-18194-1-git-send-email-tomeu.vizoso@collabora.com