From: Kenneth Graunke <kenneth@whitecape.org>
Date: Thu, 21 Apr 2011 01:23:38 +0000 (-0700)
Subject: i965: Disable binding table pointers for unused pipeline stages.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a94fe79464df088d8e26386d3f0db9a231bfdb61;p=mesa.git

i965: Disable binding table pointers for unused pipeline stages.

This may not be necessary, but it seems like a good idea.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
---

diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index 7f2b34611b5..ff8be24988a 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -833,6 +833,8 @@
 # define GEN6_BINDING_TABLE_MODIFY_PS	(1 << 12)
 
 #define _3DSTATE_BINDING_TABLE_POINTERS_VS	0x7826 /* GEN7+ */
+#define _3DSTATE_BINDING_TABLE_POINTERS_HS	0x7827 /* GEN7+ */
+#define _3DSTATE_BINDING_TABLE_POINTERS_DS	0x7828 /* GEN7+ */
 #define _3DSTATE_BINDING_TABLE_POINTERS_GS	0x7829 /* GEN7+ */
 #define _3DSTATE_BINDING_TABLE_POINTERS_PS	0x782A /* GEN7+ */
 
diff --git a/src/mesa/drivers/dri/i965/gen7_disable.c b/src/mesa/drivers/dri/i965/gen7_disable.c
index 4fbbfe72e3b..4e9461739d0 100644
--- a/src/mesa/drivers/dri/i965/gen7_disable.c
+++ b/src/mesa/drivers/dri/i965/gen7_disable.c
@@ -59,6 +59,11 @@ disable_stages(struct brw_context *brw)
    OUT_BATCH(0);
    ADVANCE_BATCH();
 
+   BEGIN_BATCH(2);
+   OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_GS << 16 | (2 - 2));
+   OUT_BATCH(0);
+   ADVANCE_BATCH();
+
    /* Disable the HS Unit */
    BEGIN_BATCH(7);
    OUT_BATCH(_3DSTATE_CONSTANT_HS << 16 | (7 - 2));
@@ -80,6 +85,11 @@ disable_stages(struct brw_context *brw)
    OUT_BATCH(0);
    ADVANCE_BATCH();
 
+   BEGIN_BATCH(2);
+   OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_HS << 16 | (2 - 2));
+   OUT_BATCH(0);
+   ADVANCE_BATCH();
+
    /* Disable the TE */
    BEGIN_BATCH(4);
    OUT_BATCH(_3DSTATE_TE << 16 | (4 - 2));
@@ -108,6 +118,11 @@ disable_stages(struct brw_context *brw)
    OUT_BATCH(0);
    ADVANCE_BATCH();
 
+   BEGIN_BATCH(2);
+   OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_DS << 16 | (2 - 2));
+   OUT_BATCH(0);
+   ADVANCE_BATCH();
+
    /* Disable the SOL stage */
    BEGIN_BATCH(3);
    OUT_BATCH(_3DSTATE_STREAMOUT << 16 | (3 - 2));