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powerpc: Provide atomic_{or,xor,and} 

Implement atomic logic ops -- atomic_{or,xor,and}.

These will replace the atomic_{set,clear}_mask functions that are
available on some archs.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Peter Zijlstra 2014-04-23 19:46:23 +02:00 committed by Thomas Gleixner
parent aebea93596
commit d0b7eb6ff2
1 changed files with 9 additions and 0 deletions
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9
arch/powerpc/include/asm/atomic.h
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@ -67,6 +67,12 @@ static __inline__ int atomic_##op##_return(int a, atomic_t *v) \
ATOMIC_OPS(add, add)
ATOMIC_OPS(sub, subf)
#define CONFIG_ARCH_HAS_ATOMIC_OR
ATOMIC_OP(and, and)
ATOMIC_OP(or, or)
ATOMIC_OP(xor, xor)
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@ -304,6 +310,9 @@ static __inline__ long atomic64_##op##_return(long a, atomic64_t *v) \
ATOMIC64_OPS(add, add)
ATOMIC64_OPS(sub, subf)
ATOMIC64_OP(and, and)
ATOMIC64_OP(or, or)
ATOMIC64_OP(xor, xor)
#undef ATOMIC64_OPS
#undef ATOMIC64_OP_RETURN