On Tue, Jan 21, 2014 at 11:03:43AM +0000, Bloomfield, Jon wrote: > > 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> Both merged, with some frobbery to make the 2nd patch apply. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
