On Mon, Apr 11, 2016 at 10:34:14AM +0300, Ville Syrjälä wrote: > On Sat, Apr 09, 2016 at 11:14:45AM +0100, Chris Wilson wrote: > > When the engine idles waiting upon a semaphore, it loses its > > pagetables and we must reload them before executing the batch. > > RCS shouldn't lose them IIRC, other engines yes. As I recall the > other way to avoid this would be to prevent the engine from > entering some power save mode during the wait, but I suppose > that might come at a power cost.
Right, this only affects !RCS. Just changing to if (ppgtt && waiter_req->engine->id != RCS) would be enough. Care to give a r-b with that in place since you've checked bspec? :) -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
