diff --git a/src/intel/genxml/gen12.xml b/src/intel/genxml/gen12.xml
index 66377cbdd26..6ed9ccc369e 100644
--- a/src/intel/genxml/gen12.xml
+++ b/src/intel/genxml/gen12.xml
@@ -2528,6 +2528,11 @@
       <value name="2.0 pixels" value="2"/>
       <value name="4.0 pixels" value="3"/>
     </field>
+    <field name="Deref Block Size" start="93" end="94" type="uint">
+      <value name="Block Deref Size 32" value="0"/>
+      <value name="Per Poly Deref Mode" value="1"/>
+      <value name="Block Deref Size 8" value="2"/>
+    </field>
     <field name="Point Width" start="96" end="106" type="u8.3"/>
     <field name="Point Width Source" start="107" end="107" type="uint">
       <value name="Vertex" value="0"/>