aed2fc102f
As another precaution when testing whether the CS engine is actually idle, also inspect the ring's HEAD/TAIL registers, which should be equal when there are no commands left to execute by the GPU. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170530121334.17364-3-chris@chris-wilson.co.uk Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> |
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