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ia64: 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>
This commit is contained in:
Peter Zijlstra 2014-04-23 20:00:01 +02:00 committed by Thomas Gleixner
parent 610f7ba93b
commit 70ed47390d
1 changed files with 22 additions and 4 deletions
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26
arch/ia64/include/asm/atomic.h
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@ -45,8 +45,6 @@ ia64_atomic_##op (int i, atomic_t *v) \
ATOMIC_OP(add, +)
ATOMIC_OP(sub, -)
#undef ATOMIC_OP
#define atomic_add_return(i,v) \
({ \
int __ia64_aar_i = (i); \
@ -71,6 +69,18 @@ ATOMIC_OP(sub, -)
: ia64_atomic_sub(__ia64_asr_i, v); \
})
#define CONFIG_ARCH_HAS_ATOMIC_OR
ATOMIC_OP(and, &)
ATOMIC_OP(or, |)
ATOMIC_OP(xor, ^)
#define atomic_and(i,v) (void)ia64_atomic_and(i,v)
#define atomic_or(i,v) (void)ia64_atomic_or(i,v)
#define atomic_xor(i,v) (void)ia64_atomic_xor(i,v)
#undef ATOMIC_OP
#define ATOMIC64_OP(op, c_op) \
static __inline__ long \
ia64_atomic64_##op (__s64 i, atomic64_t *v) \
@ -89,8 +99,6 @@ ia64_atomic64_##op (__s64 i, atomic64_t *v) \
ATOMIC64_OP(add, +)
ATOMIC64_OP(sub, -)
#undef ATOMIC64_OP
#define atomic64_add_return(i,v) \
({ \
long __ia64_aar_i = (i); \
@ -115,6 +123,16 @@ ATOMIC64_OP(sub, -)
: ia64_atomic64_sub(__ia64_asr_i, v); \
})
ATOMIC64_OP(and, &)
ATOMIC64_OP(or, |)
ATOMIC64_OP(xor, ^)
#define atomic64_and(i,v) (void)ia64_atomic64_and(i,v)
#define atomic64_or(i,v) (void)ia64_atomic64_or(i,v)
#define atomic64_xor(i,v) (void)ia64_atomic64_xor(i,v)
#undef ATOMIC64_OP
#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new))
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))