Mesa (master): i965: Add Gen7 depth stall flushes before disabling depth in BLORP.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: 2a9492f3215ee01ed679aa02809099f090291969
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=2a9492f3215ee01ed679aa02809099f090291969

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Tue Aug 13 11:37:32 2013 -0700

i965: Add Gen7 depth stall flushes before disabling depth in BLORP.

We emit these before configuring depth in the normal path, or actually
using the depth buffer in BLORP - we just failed to emit them when
disabling depth altogether.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Chad Versace <chad.versace at linux.intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

---

 src/mesa/drivers/dri/i965/gen7_blorp.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.cpp b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
index 518d7f5..44e7578 100644
--- a/src/mesa/drivers/dri/i965/gen7_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
@@ -756,6 +756,8 @@ static void
 gen7_blorp_emit_depth_disable(struct brw_context *brw,
                               const brw_blorp_params *params)
 {
+   intel_emit_depth_stall_flushes(brw);
+
    BEGIN_BATCH(7);
    OUT_BATCH(GEN7_3DSTATE_DEPTH_BUFFER << 16 | (7 - 2));
    OUT_BATCH(BRW_DEPTHFORMAT_D32_FLOAT << 18 | (BRW_SURFACE_NULL << 29));