Mesa (main): intel/genxml: fix gfx6 GS SVB_INDEX encoding

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Module: Mesa
Branch: main
Commit: 0acd202858aae3774fdd0b1d92af4485a4e464f2
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0acd202858aae3774fdd0b1d92af4485a4e464f2

Author: Dave Airlie <airlied at redhat.com>
Date:   Thu Jun 24 09:06:09 2021 +1000

intel/genxml: fix gfx6 GS SVB_INDEX encoding

This seems to match what the docs + 965 traces say

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11567>

---

 src/intel/genxml/gen6.xml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/intel/genxml/gen6.xml b/src/intel/genxml/gen6.xml
index 40b2baf7d13..041365dbfa6 100644
--- a/src/intel/genxml/gen6.xml
+++ b/src/intel/genxml/gen6.xml
@@ -778,8 +778,8 @@
     </field>
   </instruction>
 
-  <instruction name="3DSTATE_GS_SVB_INDEX" bias="2" length="7" engine="render">
-    <field name="DWord Length" start="0" end="7" type="uint" default="5"/>
+  <instruction name="3DSTATE_GS_SVB_INDEX" bias="2" length="4" engine="render">
+    <field name="DWord Length" start="0" end="7" type="uint" default="2"/>
     <field name="3D Command Sub Opcode" start="16" end="23" type="uint" default="11"/>
     <field name="3D Command Opcode" start="24" end="26" type="uint" default="1"/>
     <field name="Command SubType" start="27" end="28" type="uint" default="3"/>