The normal drawing path does this, and it's necessary on Ivybridge,
so let's try it on Sandybridge too. It's not explicitly documented
as necessary, but might help with hangs.
Signed-off-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/mesa/drivers/dri/i965/gen6_blorp.cpp | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/gen6_blorp.cpp
b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
index ce215c2..8735270 100644
--- a/src/mesa/drivers/dri/i965/gen6_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
@@ -930,6 +930,18 @@ gen6_blorp_emit_depth_disable(struct brw_context *brw,
OUT_BATCH(0);
OUT_BATCH(0);
ADVANCE_BATCH();
+
+ BEGIN_BATCH(3);
+ OUT_BATCH(_3DSTATE_HIER_DEPTH_BUFFER << 16 | (3 - 2));
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
+
+ BEGIN_BATCH(3);
+ OUT_BATCH(_3DSTATE_STENCIL_BUFFER << 16 | (3 - 2));
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
}
--
1.8.3.2
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