On Thu, Apr 23, 2015 at 08:56:40PM +0200, Daniel Vetter wrote: > Yeah, but I didn't really see the point in the debug infrastructure for > aliasing ppgtt. The pde loading is done somewhere completely else than for > full ppgtt. And if we forget to load the pdes the effects are obvious, > whereas failing to reload when changes happen with full ppgtt is much > harder to spot quickly. So I opted to undo those checks again, they have > been defunct before my changes anyway.
But they did just serve a purpose. They said we were not skipping the no-op context switches. I disagree though and that we want to reduce the differences in handling the two different types of mm. There is no good reason to bake in knowledge of full-ppgtt vs aliasing-ppgtt here as the decision whether to do the mm switch is purely decided on the validity of the current/next PD. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
