diff --git a/src/freedreno/isa/encode.py b/src/freedreno/isa/encode.py
index 791450990fb..3ece9e0ff0b 100644
--- a/src/freedreno/isa/encode.py
+++ b/src/freedreno/isa/encode.py
@@ -329,11 +329,16 @@ template = """\
 
 #include <stdbool.h>
 #include <stdint.h>
+#include <util/bitset.h>
 
 <%
 isa = s.isa
 %>
 
+typedef struct {
+    BITSET_WORD bitset[BITSET_WORDS(${isa.bitsize})];
+} bitmask_t;
+
 /**
  * Opaque type from the PoV of generated code, but allows state to be passed
  * thru to the hand written helpers used by the generated code.