drm/i915/execlists: Wait for ELSP submission on restart

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After a reset, we will ensure that there is at least one request
submitted to HW to ensure that a context is loaded for powersaving.
Let's wait for this submission via a tasklet to complete before we drop
our forcewake, ensuring the system is ready for rc6 before we let it
possibly sleep.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522101937.7738-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>

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This commit is contained in:

Chris Wilson 2018-05-22 11:19:37 +01:00

parent 9a4dc80399

commit fe25f30483

2 changed files with 16 additions and 1 deletions

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6

drivers/gpu/drm/i915/i915_gem.h

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11

drivers/gpu/drm/i915/intel_lrc.c

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