On Fri, Oct 24, 2014 at 04:39:29PM +0200, Daniel Vetter wrote: > On Fri, Oct 24, 2014 at 12:11:11PM +0100, Chris Wilson wrote: > > Userspace cares about whether or not swizzling depends on the page > > address for its direct access into bound objects. Extend the get_tiling > > ioctl to report the physical swizzling value in addition to the logical > > swizzling value so that userspace can accurately determine when it is > > possible for manual detiling. > > > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> > > Cc: Akash Goel <akash.goel@xxxxxxxxx> > > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> > > I wonder whether we should care really, since on gen5+ we know that they > agree. Pimp some igt (by skipping if needed) to convince me? It's for gen2-4... Trivial little change to enable more sharing of code paths and speedups. What type of igt do you want? I personally have never seen a bit17 swizzling machine, but we know that some do exist due to the bug reports. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
