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519a019491
linux/drivers/gpu/drm/i915/gt
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Chris Wilson 519a019491 drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 
After realising we need to sample RING_START to detect context switches
from preemption events that do not allow for the seqno to advance, we
can also realise that the seqno itself is just a distance along the ring
and so can be replaced by sampling RING_HEAD.

v2: Bonus comment for the mystery separate CS_STALL before MI_USER_INTERRUPT

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190508080704.24223-1-chris@chris-wilson.co.uk
2019-05-08 15:06:35 +01:00
..
intel_breadcrumbs.c drm/i915: Assert breadcrumbs are correctly ordered in the signal handler 2019-05-07 11:59:27 +01:00
intel_context_types.h drm/i915: Disable semaphore busywaits on saturated systems 2019-05-04 09:18:02 +01:00
intel_context.c drm/i915: Disable semaphore busywaits on saturated systems 2019-05-04 09:18:02 +01:00
intel_context.h drm/i915: Switch back to an array of logical per-engine HW contexts 2019-04-26 18:32:11 +01:00
intel_engine_cs.c drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 2019-05-08 15:06:35 +01:00
intel_engine_pm.c drm/i915/execlists: Flush the tasklet on parking 2019-05-03 11:35:31 +01:00
intel_engine_pm.h drm/i915/execlists: Flush the tasklet on parking 2019-05-03 11:35:31 +01:00
intel_engine_types.h drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 2019-05-08 15:06:35 +01:00
intel_engine.h drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 2019-05-08 15:06:35 +01:00
intel_gpu_commands.h
intel_gt_pm.c drm/i915: Invert the GEM wakeref hierarchy 2019-04-24 22:26:49 +01:00
intel_gt_pm.h drm/i915: Invert the GEM wakeref hierarchy 2019-04-24 22:26:49 +01:00
intel_hangcheck.c drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 2019-05-08 15:06:35 +01:00
intel_lrc_reg.h
intel_lrc.c drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 2019-05-08 15:06:35 +01:00
intel_lrc.h drm/i915: Split engine setup/init into two phases 2019-04-26 18:32:07 +01:00
intel_mocs.c
intel_mocs.h
intel_reset.c drm/i915: Reboot CI if forcewake fails 2019-05-08 13:58:31 +01:00
intel_reset.h drm/i915: Invert the GEM wakeref hierarchy 2019-04-24 22:26:49 +01:00
intel_ringbuffer.c drm/i915/hangcheck: Replace hangcheck.seqno with RING_HEAD 2019-05-08 15:06:35 +01:00
intel_sseu.c
intel_sseu.h
intel_workarounds_types.h
intel_workarounds.c drm/i915/icl: Whitelist GEN9_SLICE_COMMON_ECO_CHICKEN1 2019-04-30 07:50:58 +01:00
intel_workarounds.h
Makefile
Makefile.header-test
mock_engine.c drm/i915: Switch back to an array of logical per-engine HW contexts 2019-04-26 18:32:11 +01:00
mock_engine.h drm/i915: Split engine setup/init into two phases 2019-04-26 18:32:07 +01:00
selftest_engine_cs.c
selftest_hangcheck.c drm/i915: Move i915_request_alloc into selftests/ 2019-04-26 18:32:20 +01:00
selftest_lrc.c drm/i915: Only reschedule the submission tasklet if preemption is possible 2019-05-07 17:40:20 +01:00
selftest_workarounds.c drm/i915: Move i915_request_alloc into selftests/ 2019-04-26 18:32:20 +01:00