Hi, Has this situation changed at all? It's probably quite important to get this working because we have to disable fast clears for X-tiled buffers on SKL which effectively means we currently can't do it for window system buffers.
Regards, - Neil Chris Wilson <ch...@chris-wilson.co.uk> writes: > On Mon, Apr 13, 2015 at 04:31:29PM +0200, Daniel Vetter wrote: >> On Sat, Apr 11, 2015 at 01:16:11PM -0700, Ben Widawsky wrote: >> > Starting with Skylake, the display engine is capable of scanning out from >> > Y-tiled buffers. As such, we can and should use Y-tiling for better >> > efficiency. >> > >> > Note that the buffer allocation done for mipmaps will already never >> > allocate an >> > X-tiled buffer for GEN9. >> > >> > Signed-off-by: Ben Widawsky <b...@bwidawsk.net> >> >> You need a recent enough ddx to make use of Y-tiled buffers, which atm >> still doesn't yet exist. This would at least need some kind of handshake >> with the compositor to make sure it understands this, presuming I didn't >> miss something. > > You can send Y-tiled buffers to the DDX. The problem is that the kernel > won't allow us to display them and so we will (and always have been) > copying from them. > -Chris > > -- > Chris Wilson, Intel Open Source Technology Centre > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
