arch: Add lightweight memory barriers dma_rmb() and dma_wmb()

[mirror_ubuntu-zesty-kernel.git] / arch / ia64 / include / asm / barrier.h

diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
index e8fffb03963c7f7aebc69b5dfb9dae7ea75191d1..f6769eb2bbf9b5ff8774017ac0eb332fcc7309d9 100644 (file)
--- a/arch/ia64/include/asm/barrier.h
+++ b/arch/ia64/include/asm/barrier.h
@@ -39,6 +39,9 @@
 #define rmb()          mb()
 #define wmb()          mb()
 
+#define dma_rmb()      mb()
+#define dma_wmb()      mb()
+
 #ifdef CONFIG_SMP
 # define smp_mb()      mb()
 #else