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| author | Peter Zijlstra <peterz@infradead.org> | 2014-04-23 20:06:20 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-27 14:06:21 +0200 |
| commit | cda7e4137a4e39c7d877b6ed41da13a5b30dd2cf (patch) | |
| tree | 9339f7096a482c0171414880d438c4134aa1386a | |
| parent | 212d3be102d73dce70cc12f39dce4e0aed2c025b (diff) | |
| download | linux-cda7e4137a4e39c7d877b6ed41da13a5b30dd2cf.tar.bz2 | |
arc: 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: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/arc/include/asm/atomic.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h index 03484cb4d16d..e90b701fc6a8 100644 --- a/arch/arc/include/asm/atomic.h +++ b/arch/arc/include/asm/atomic.h @@ -143,14 +143,29 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \ ATOMIC_OPS(add, +=, add) ATOMIC_OPS(sub, -=, sub) -ATOMIC_OP(and, &=, and) -#define atomic_clear_mask(mask, v) atomic_and(~(mask), (v)) +#define CONFIG_ARCH_HAS_ATOMIC_OR +#define atomic_andnot atomic_andnot + +ATOMIC_OP(and, &=, and) +ATOMIC_OP(andnot, &= ~, bic) +ATOMIC_OP(or, |=, or) +ATOMIC_OP(xor, ^=, xor) #undef ATOMIC_OPS #undef ATOMIC_OP_RETURN #undef ATOMIC_OP +static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v) +{ + atomic_and(~mask, v); +} + +static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v) +{ + atomic_or(mask, v); +} + /** * __atomic_add_unless - add unless the number is a given value * @v: pointer of type atomic_t |