metag: fix memory barriers

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / metag / include / asm / barrier.h

diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h
index 5d6b4b4..2d6f0de 100644 (file)
--- a/arch/metag/include/asm/barrier.h
+++ b/arch/metag/include/asm/barrier.h
@@ -15,6 +15,7 @@ static inline void wr_fence(void)
        volatile int *flushptr = (volatile int *) LINSYSEVENT_WR_FENCE;
        barrier();
        *flushptr = 0;
+       barrier();
 }
 
 #else /* CONFIG_METAG_META21 */
@@ -35,6 +36,7 @@ static inline void wr_fence(void)
        *flushptr = 0;
        *flushptr = 0;
        *flushptr = 0;
+       barrier();
 }
 
 #endif /* !CONFIG_METAG_META21 */
@@ -68,6 +70,7 @@ static inline void fence(void)
        volatile int *flushptr = (volatile int *) LINSYSEVENT_WR_ATOMIC_UNLOCK;
        barrier();
        *flushptr = 0;
+       barrier();
 }
 #define smp_mb()        fence()
 #define smp_rmb()       fence()