+/* We can probably drop the gpu_id arg, but keeping it for now so we can
+ * assert if we see something we think should be new encoding on an older
+ * gpu.
+ */
+static inline bool is_cat6_legacy(instr_t *instr, unsigned gpu_id)
+{
+ instr_cat6_a6xx_t *cat6 = &instr->cat6_a6xx;
+
+ /* At least one of these two bits is pad in all the possible
+ * "legacy" cat6 encodings, and a analysis of all the pre-a6xx
+ * cmdstream traces I have indicates that the pad bit is zero
+ * in all cases. So we can use this to detect new encoding:
+ */
+ if ((cat6->pad2 & 0x8) && (cat6->pad4 & 0x2)) {
+ assert(gpu_id >= 600);
+ assert(instr->cat6.opc == 0);
+ return false;
+ }
+
+ return true;
+}
+