On Fri, Jan 15, 2016 at 05:12:45PM +0000, Tvrtko Ursulin wrote: > From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> > > LRC lifetime is well defined so we can cache the page pointing > to the object backing store in the context in order to avoid > walking over the object SG page list from the interrupt context > without the big lock held. > > v2: Also cache the mapping. (Chris Wilson) > v3: Unmap on the error path. > v4: No need to cache the page. (Chris Wilson) > v5: No need to dirty the page on unpin. (Chris Wilson) > v6: kmap() cannot fail and use kmap_to_page to simplify unpin. > (Chris Wilson) > > Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > Cc: Dave Gordon <david.s.gordon@xxxxxxxxx> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
