drm/i915: Flush idle barriers when waiting

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If we do find ourselves with an idle barrier inside our active while
waiting, attempt to flush it by emitting a pulse using the kernel
context.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Steve Carbonari <steven.carbonari@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200225192206.1107336-1-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2020-02-25 19:22:04 +00:00

parent 53e3ca6749

commit d13a317700

2 changed files with 79 additions and 9 deletions

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44

drivers/gpu/drm/i915/i915_active.c

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46

drivers/gpu/drm/i915/selftests/i915_active.c

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