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| author | Peter Zijlstra <peterz@infradead.org> | 2014-04-23 20:02:20 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-27 14:06:22 +0200 |
| commit | f8a570e270bf62363cd498ac2ac8ea07a76ad4d6 (patch) | |
| tree | dbe157ddbd610789ac921978286816e57fb6ff25 /arch | |
| parent | 22288b40e2c7ab484a08a03df32782a67903912c (diff) | |
| download | lwn-f8a570e270bf62363cd498ac2ac8ea07a76ad4d6.tar.gz lwn-f8a570e270bf62363cd498ac2ac8ea07a76ad4d6.zip | |
avr32: 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')
| -rw-r--r-- | arch/avr32/include/asm/atomic.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/atomic.h b/arch/avr32/include/asm/atomic.h index 2d07ce1c5327..115d3005e4bc 100644 --- a/arch/avr32/include/asm/atomic.h +++ b/arch/avr32/include/asm/atomic.h @@ -44,6 +44,20 @@ static inline int __atomic_##op##_return(int i, atomic_t *v) \ ATOMIC_OP_RETURN(sub, sub, rKs21) ATOMIC_OP_RETURN(add, add, r) +#define ATOMIC_OP(op, asm_op) \ +ATOMIC_OP_RETURN(op, asm_op, r) \ +static inline void atomic_##op(int i, atomic_t *v) \ +{ \ + (void)__atomic_##op##_return(i, v); \ +} + +#define CONFIG_ARCH_HAS_ATOMIC_OR + +ATOMIC_OP(and, and) +ATOMIC_OP(or, or) +ATOMIC_OP(xor, eor) + +#undef ATOMIC_OP #undef ATOMIC_OP_RETURN /* |