1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h
index 409ca370cfe2..66eb7648043b 100644
--- a/arch/arm64/include/asm/barrier.h
+++ b/arch/arm64/include/asm/barrier.h
@@ -25,6 +25,7 @@
 #define wfi()           asm volatile("wfi" : : : "memory")
 
 #define isb()           asm volatile("isb" : : : "memory")
+#define dmb(opt)        asm volatile("dmb sy" : : : "memory")
 #define dsb(opt)        asm volatile("dsb sy" : : : "memory")
 
 #define mb()            dsb()