Index: generic/include/mm/as.h
===================================================================
--- generic/include/mm/as.h	(revision 2a1fa51536bfc1c1cff6d27d507dc0e67b239201)
+++ generic/include/mm/as.h	(revision 963074b3ec6ea15686d0e384d696e199e2b7741b)
@@ -57,4 +57,5 @@
 #define AS_AREA_WRITE	2
 #define AS_AREA_EXEC	4
+#define AS_AREA_DEVICE	8
 
 /** Address space area structure.