drm/i915/gt: Track all timelines created using the HWSP

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We assume that the contents of the HWSP are lost across suspend, and so
upon resume we must restore critical values such as the timeline seqno.
Keep track of every timeline allocated that uses the HWSP as its storage
and so we can then reset all seqno values by walking that list.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201222104242.10993-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2020-12-22 10:42:42 +00:00

parent a4d86249c7

commit b436a5f8b6

9 changed files with 101 additions and 15 deletions

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32

drivers/gpu/drm/i915/gt/intel_engine_cs.c

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7

drivers/gpu/drm/i915/gt/intel_engine_pm.c

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1

drivers/gpu/drm/i915/gt/intel_engine_types.h

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drivers/gpu/drm/i915/gt/intel_execlists_submission.c

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drivers/gpu/drm/i915/gt/intel_lrc.c

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35

drivers/gpu/drm/i915/gt/intel_ring_submission.c

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drivers/gpu/drm/i915/gt/intel_timeline.c

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drivers/gpu/drm/i915/gt/intel_timeline.h

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drivers/gpu/drm/i915/gt/intel_timeline_types.h

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