diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2014-03-13 22:00:35 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-04-18 16:20:44 +0400 |
| commit | 56d3648948c202e8b89cd786a004c451a3eb264f (patch) | |
| tree | eac45e33ca2a33df0001c5162272ec0265e0daa8 /arch/sparc/include/asm/barrier_64.h | |
| parent | 603228bcb8da90f8f8a5cdd8de74178f6c3e7e13 (diff) | |
| download | linux-56d3648948c202e8b89cd786a004c451a3eb264f.tar.xz | |
arch,sparc: Convert smp_mb__*()
sparc32: fully relies on asm-generic/barrier.h and thus can use its
implementation.
sparc64: is strongly ordered and its atomic ops imply a full barrier,
implement the new primitives using barrier().
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: David S. Miller <davem@davemloft.net>
Link: http://lkml.kernel.org/n/tip-2cla9ubpd8chrntnm7e4zdt4@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: sparclinux@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/sparc/include/asm/barrier_64.h')
| -rw-r--r-- | arch/sparc/include/asm/barrier_64.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h index b5aad964558e..305dcc3dc721 100644 --- a/arch/sparc/include/asm/barrier_64.h +++ b/arch/sparc/include/asm/barrier_64.h @@ -68,4 +68,7 @@ do { \ ___p1; \ }) +#define smp_mb__before_atomic() barrier() +#define smp_mb__after_atomic() barrier() + #endif /* !(__SPARC64_BARRIER_H) */ |