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