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Commit d0b7eb6f authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Thomas Gleixner
Browse files

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: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent aebea935

arch/powerpc/include/asm/atomic.h

+9 −0
Original line number Diff line number Diff line
@@ -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