diff --git a/src/broadcom/qpu/qpu_instr.h b/src/broadcom/qpu/qpu_instr.h
index 2e133472698..45a0cad9760 100644
--- a/src/broadcom/qpu/qpu_instr.h
+++ b/src/broadcom/qpu/qpu_instr.h
@@ -88,11 +88,11 @@ enum v3d_qpu_uf {
 };
 
 enum v3d_qpu_waddr {
-        V3D_QPU_WADDR_R0 = 0,
-        V3D_QPU_WADDR_R1 = 1,
-        V3D_QPU_WADDR_R2 = 2,
-        V3D_QPU_WADDR_R3 = 3,
-        V3D_QPU_WADDR_R4 = 4,
+        V3D_QPU_WADDR_R0 = 0,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_R1 = 1,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_R2 = 2,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_R3 = 3,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_R4 = 4,    /* Reserved on V3D 7.x */
         V3D_QPU_WADDR_R5 = 5,
         V3D_QPU_WADDR_NOP = 6,
         V3D_QPU_WADDR_TLB = 7,
@@ -108,12 +108,12 @@ enum v3d_qpu_waddr {
         V3D_QPU_WADDR_SYNC = 16,
         V3D_QPU_WADDR_SYNCU = 17,
         V3D_QPU_WADDR_SYNCB = 18,
-        V3D_QPU_WADDR_RECIP = 19,
-        V3D_QPU_WADDR_RSQRT = 20,
-        V3D_QPU_WADDR_EXP = 21,
-        V3D_QPU_WADDR_LOG = 22,
-        V3D_QPU_WADDR_SIN = 23,
-        V3D_QPU_WADDR_RSQRT2 = 24,
+        V3D_QPU_WADDR_RECIP = 19,  /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_RSQRT = 20,  /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_EXP = 21,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_LOG = 22,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_SIN = 23,    /* Reserved on V3D 7.x */
+        V3D_QPU_WADDR_RSQRT2 = 24, /* Reserved on V3D 7.x */
         V3D_QPU_WADDR_TMUC = 32,
         V3D_QPU_WADDR_TMUS = 33,
         V3D_QPU_WADDR_TMUT = 34,