Messages in this thread Patch in this message | | | Date | Thu, 16 Jul 2015 19:21:13 +0200 | From | Peter Zijlstra <> | Subject | [PATCH 03/28] arc: 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.
Acked-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> --- arch/arc/include/asm/atomic.h | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-)
--- a/arch/arc/include/asm/atomic.h +++ b/arch/arc/include/asm/atomic.h @@ -143,14 +143,29 @@ static inline int atomic_##op##_return(i 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
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