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| author | Peter Zijlstra <peterz@infradead.org> | 2014-03-13 19:00:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-04-18 14:20:38 +0200 |
| commit | 91bbefe6b0fcd2968c34a5a566bda870477afc82 (patch) | |
| tree | 47dafcecaefe7838ab8aea458bd85fde3131b453 /arch/mips/include/asm/atomic.h | |
| parent | 40074dece684fc61ab72cfc1689d564cba1c5f64 (diff) | |
| download | op-kernel-dev-91bbefe6b0fcd2968c34a5a566bda870477afc82.zip op-kernel-dev-91bbefe6b0fcd2968c34a5a566bda870477afc82.tar.gz | |
arch,mips: Convert smp_mb__*()
MIPS is interesting and has hardware variants that reorder over ll/sc
as well as those that do not.
Implement the 2 new barrier functions as per the old barriers.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-9ph49jbae3hol9v721sbc2g6@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Maciej W. Rozycki" <macro@codesourcery.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/include/asm/atomic.h')
| -rw-r--r-- | arch/mips/include/asm/atomic.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h index e8eb3d5..37b2bef 100644 --- a/arch/mips/include/asm/atomic.h +++ b/arch/mips/include/asm/atomic.h @@ -761,13 +761,4 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u) #endif /* CONFIG_64BIT */ -/* - * atomic*_return operations are serializing but not the non-*_return - * versions. - */ -#define smp_mb__before_atomic_dec() smp_mb__before_llsc() -#define smp_mb__after_atomic_dec() smp_llsc_mb() -#define smp_mb__before_atomic_inc() smp_mb__before_llsc() -#define smp_mb__after_atomic_inc() smp_llsc_mb() - #endif /* _ASM_ATOMIC_H */ |
