- radeon_emit(cs, PKT3(PKT3_SET_UCONFIG_REG, 1, 0));
+ assert(idx);
+
+ unsigned opcode = PKT3_SET_UCONFIG_REG_INDEX;
+ if (pdevice->rad_info.chip_class < GFX9 ||
+ (pdevice->rad_info.chip_class == GFX9 && pdevice->rad_info.me_fw_version < 26))
+ opcode = PKT3_SET_UCONFIG_REG;
+
+ radeon_emit(cs, PKT3(opcode, 1, 0));