> From: intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx [mailto:intel-gfx- > bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Chris Wilson > Sent: Monday, January 20, 2014 10:18 AM > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: [PATCH 2/2] drm/i915: Repeat evictions whilst pageflip > completions are outstanding > > Since an old pageflip will keep its scanout buffer object pinned until it has > executed its unpin task on the common workqueue, we can clog up our > GGTT with stale pinned objects. As we cannot flush those workqueues > without dropping our locks, we have to resort to falling back to userspace > and telling them to repeat the operation in order to have a chance to run our > workqueues and free up the required memory. If we fail, then we are forced > to report ENOSPC back to userspace causing the operation to fail and best- > case scenario is that it introduces temporary corruption. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Reviewed-by: Jon Bloomfield <jon.bloomfield@xxxxxxxxx> _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
