diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index a444c790fa7235e2bc7247313804a5062d0a4db8..709a697c4e02b5f83abd3ddad515308506fcd52f 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -24,9 +24,10 @@
 #include <linux/types.h>
 #include <trace/events/iommu.h>
 
-#define IOMMU_READ	(1)
-#define IOMMU_WRITE	(2)
-#define IOMMU_CACHE	(4) /* DMA cache coherency */
+#define IOMMU_READ	(1 << 0)
+#define IOMMU_WRITE	(1 << 1)
+#define IOMMU_CACHE	(1 << 2) /* DMA cache coherency */
+#define IOMMU_EXEC	(1 << 3)
 
 struct iommu_ops;
 struct iommu_group;