Index: kernel/arch/ia64/include/barrier.h
===================================================================
--- kernel/arch/ia64/include/barrier.h	(revision e25eca8008c4df6f190fbd28a399c5e01406f863)
+++ kernel/arch/ia64/include/barrier.h	(revision 1e1e5e1f552946adaf5576371c0d6cd57ecfd5a9)
@@ -63,4 +63,14 @@
 }
 
+#define FC_INVAL_MIN		32
+#define smc_coherence_block(a, l)		\
+{						\
+	unsigned long i;			\
+	for (i = 0; i < (l); i += FC_INVAL_MIN)	\
+		fc_i((void *)(a) + i);		\
+	sync_i();				\
+	srlz_i();				\
+}
+
 #endif