On Tue, Jan 12, 2016 at 11:56:11AM +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. Then we only use the lrc_state_page in the unmapping, hardly worth the cost of saving it. The reg_state is better associated with the ring (since it basically contains the analog of the RING_HEAD and friends). -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
