Mesa (master): i965: Fix render target read domains.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: 078e8a61b2aa547c6794f586a5c8bfaa575bb066
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=078e8a61b2aa547c6794f586a5c8bfaa575bb066

Author: Eric Anholt <eric at anholt.net>
Date:   Thu Feb 19 13:53:46 2009 -0800

i965: Fix render target read domains.

We were asking for something illegal (write_domain != 0 && read_domains !=
write_domain) because at the time of writing the region surfaces were used
for texturing occasionally as well, and we weren't really clear on the model
GEM was going to use.

This reliably triggered a kernel bug with domain handling, resulting in
oglconform mustpass.c failure.  Of course, it only became visible after
01bc4d441fd6821ad9fc20d5e9544e4e587e4ff0 cleaned up some gratuitous flushing.

---

 src/mesa/drivers/dri/i965/brw_wm_surface_state.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 3593988..654adcd 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -389,8 +389,7 @@ brw_update_region_surface(struct brw_context *brw, struct intel_region *region,
 	  * a more restrictive relocation to emit.
 	  */
 	 dri_bo_emit_reloc(brw->wm.surf_bo[unit],
-			   I915_GEM_DOMAIN_RENDER |
-			   I915_GEM_DOMAIN_SAMPLER,
+			   I915_GEM_DOMAIN_RENDER,
 			   I915_GEM_DOMAIN_RENDER,
 			   0,
 			   offsetof(struct brw_surface_state, ss1),