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| author | Peter Zijlstra <peterz@infradead.org> | 2014-04-23 20:04:39 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-27 14:06:21 +0200 |
| commit | 125897908c718972351b589da89b7f990892d4df (patch) | |
| tree | 2a0b7a195c7772990bd92a9d39b4c6b348418534 /arch/arm/include/asm/atomic.h | |
| parent | arc: Provide atomic_{or,xor,and} (diff) | |
| download | linux-125897908c718972351b589da89b7f990892d4df.tar.xz linux-125897908c718972351b589da89b7f990892d4df.zip | |
arm: 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.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/arm/include/asm/atomic.h')
| -rw-r--r-- | arch/arm/include/asm/atomic.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h index e22c11970b7b..ff214bac9cb4 100644 --- a/arch/arm/include/asm/atomic.h +++ b/arch/arm/include/asm/atomic.h @@ -194,6 +194,14 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) 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##_return(long long i, atomic64_t *v) \ 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 |