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| author | Peter Zijlstra <peterz@infradead.org> | 2014-01-24 16:40:02 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-01-29 15:50:57 -0300 |
| commit | f428ebd184c82a7914b2aa7e9f868918aaf7ea78 (patch) | |
| tree | c7a0eb95e556a90fc9e9c534515ba53b8f9868d8 /tools | |
| parent | 950b8354716eb1f9c0b39777d379efa5f4125c04 (diff) | |
| download | lwn-f428ebd184c82a7914b2aa7e9f868918aaf7ea78.tar.gz lwn-f428ebd184c82a7914b2aa7e9f868918aaf7ea78.zip | |
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 <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Fixes: a94d342b9cb0 ("tools/perf: Add required memory barriers")
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Link: http://lkml.kernel.org/r/20140124154002.GF31570@twins.programming.kicks-ass.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/perf.h | 4 |
1 files 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 |