Am 21.03.2018 um 06:08 schrieb Marek Olšák: > On Tue, Mar 20, 2018 at 4:16 PM, Christian König > <christian.koenig at amd.com <mailto:christian.koenig at amd.com>> wrote: > > That's what I meant with use up the otherwise unused VRAM. I don't > see any disadvantage of always setting GTT as second domain on APUs. > > My assumption was that we dropped this in userspace for > displayable surfaces, but Marek proved that wrong. > > So what we should do is actually to add GTT as fallback to all BOs > on APUs in Mesa and only make sure that the kernel is capable of > handling GTT with optimal performance (e.g. have user huge pages > etc..). > > > VRAM|GTT is practically as good as GTT. VRAM with BO priorities and > eviction throttling is the true "VRAM|GTT". > > I don't know how else to make use of VRAM intelligently. Well why not set VRAM|GTT as default on APUs? That should still save quite a bunch of moves even with throttling. I mean there really shouldn't be any advantage to use VRAM any more except that we want to use it up as long as it is available. Christian. > > Marek > > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/amd-gfx/attachments/20180321/6c59fc1b/attachment.html>
