lib/igt_draw: add support for Y tiling

Most of the patch is to change the tile/untile functions so they can
work with Y-major tiling.

v2: (Praveen) No skipping on BLT for Y-tile now as we have a fix
 for that.

Reviewed-by: Praveen Paneri <praveen.paneri@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Praveen Paneri <praveen.paneri@intel.com>
1 file changed