intel/eu: Add a brw_urb_dest_msg_type helper

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5596>

src/intel/compiler/brw_eu.h

@@ -333,6 +333,14 @@ brw_urb_desc(const struct gen_device_info *devinfo,
    }
 }
 
+static inline uint32_t
+brw_urb_desc_msg_type(ASSERTED const struct gen_device_info *devinfo,
+                      uint32_t desc)
+{
+   assert(devinfo->gen >= 7);
+   return GET_BITS(desc, 3, 0);
+}
+
 /**
  * Construct a message descriptor immediate with the specified sampler
  * function controls.