Commits
Chris Wilson committed 7ec2c73b1db
drm/i915: Check the CPU cached value in HWS of seqno after waking the waiter If we have multiple waiters, we may find that many complete on the same wake up. If we first inspect the seqno from the CPU cache, we may reduce the number of heavyweight coherent seqno reads we require. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1467390209-3576-13-git-send-email-chris@chris-wilson.co.uk