Mesa (master): i965: Drop BLT TexSubImage Y-tiling restriction on Gen6+.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 9834058a91031f0b66007357791bb5c4013acc91
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=9834058a91031f0b66007357791bb5c4013acc91

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Thu Mar 20 14:41:43 2014 -0700

i965: Drop BLT TexSubImage Y-tiling restriction on Gen6+.

Currently, we don't use this path on Sandybridge because we suspect
other paths will be faster.  But we potentially could.  If we do, we
should allow it to support Y-tiled BLTs.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Eric Anholt <eric at anholt.net>
Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>

---

 src/mesa/drivers/dri/i965/intel_tex_subimage.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/intel_tex_subimage.c b/src/mesa/drivers/dri/i965/intel_tex_subimage.c
index 6942039..b65a772 100644
--- a/src/mesa/drivers/dri/i965/intel_tex_subimage.c
+++ b/src/mesa/drivers/dri/i965/intel_tex_subimage.c
@@ -98,8 +98,8 @@ intel_blit_texsubimage(struct gl_context * ctx,
    if (!intelImage->mt)
       return false;
 
-   /* The blitter can't handle Y tiling */
-   if (intelImage->mt->region->tiling == I915_TILING_Y)
+   /* Prior to Sandybridge, the blitter can't handle Y tiling */
+   if (brw->gen < 6 && intelImage->mt->region->tiling == I915_TILING_Y)
       return false;
 
    if (texImage->TexObject->Target != GL_TEXTURE_2D)