Messages in this thread Patch in this message | | | Date | Thu, 16 Jul 2015 19:21:14 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 04/28] arm: Provide atomic_{or,xor,and} |
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Implement atomic logic ops -- atomic_{or,xor,and}.
These will replace the atomic_{set,clear}_mask functions that are available on some archs.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- arch/arm/include/asm/atomic.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
--- a/arch/arm/include/asm/atomic.h +++ b/arch/arm/include/asm/atomic.h @@ -194,6 +194,14 @@ static inline int __atomic_add_unless(at ATOMIC_OPS(add, +=, add) ATOMIC_OPS(sub, -=, sub) +#define CONFIG_ARCH_HAS_ATOMIC_OR +#define atomic_andnot atomic_andnot + +ATOMIC_OP(and, &=, and) +ATOMIC_OP(andnot, &= ~, bic) +ATOMIC_OP(or, |=, orr) +ATOMIC_OP(xor, ^=, eor) + #undef ATOMIC_OPS #undef ATOMIC_OP_RETURN #undef ATOMIC_OP @@ -321,6 +329,13 @@ static inline long long atomic64_##op##_ ATOMIC64_OPS(add, adds, adc) ATOMIC64_OPS(sub, subs, sbc) +#define atomic64_andnot atomic64_andnot + +ATOMIC64_OP(and, and, and) +ATOMIC64_OP(andnot, bic, bic) +ATOMIC64_OP(or, orr, orr) +ATOMIC64_OP(xor, eor, eor) + #undef ATOMIC64_OPS #undef ATOMIC64_OP_RETURN #undef ATOMIC64_OP
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