[dpdk-dev] [PATCH v4 08/29] eal/arm64: define smp barrier definition for arm64

Jerin Jacob jerin.jacob at caviumnetworks.com
Tue Jan 17 08:13:43 CET 2017


dmb instruction based barrier is used for smp version of memory barrier.

Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
---
 lib/librte_eal/common/include/arch/arm/rte_atomic_64.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h b/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h
index bc7de64..78ebea2 100644
--- a/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h
+++ b/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h
@@ -82,11 +82,11 @@ static inline void rte_rmb(void)
 	dsb(ld);
 }
 
-#define rte_smp_mb() rte_mb()
+#define rte_smp_mb() dmb(ish)
 
-#define rte_smp_wmb() rte_wmb()
+#define rte_smp_wmb() dmb(ishst)
 
-#define rte_smp_rmb() rte_rmb()
+#define rte_smp_rmb() dmb(ishld)
 
 #ifdef __cplusplus
 }
-- 
2.5.5



More information about the dev mailing list