From f428ebd184c82a7914b2aa7e9f868918aaf7ea78 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 24 Jan 2014 16:40:02 +0100 Subject: [PATCH] perf tools: Fix AAAAARGH64 memory barriers Someone got the load and store barriers mixed up for AAAAARGH64. Turn them the right side up. Reported-by: Will Deacon Signed-off-by: Peter Zijlstra Fixes: a94d342b9cb0 ("tools/perf: Add required memory barriers") Cc: Ingo Molnar Cc: Will Deacon Link: http://lkml.kernel.org/r/20140124154002.GF31570@twins.programming.kicks-ass.net Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/perf.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 7daa806d9050..e84fa26bc1be 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -100,8 +100,8 @@ #ifdef __aarch64__ #define mb() asm volatile("dmb ish" ::: "memory") -#define wmb() asm volatile("dmb ishld" ::: "memory") -#define rmb() asm volatile("dmb ishst" ::: "memory") +#define wmb() asm volatile("dmb ishst" ::: "memory") +#define rmb() asm volatile("dmb ishld" ::: "memory") #define cpu_relax() asm volatile("yield" ::: "memory") #endif