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sparc: 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: David S. Miller <davem@davemloft.net>
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 19:40:25 +02:00
committed by Thomas Gleixner
parent 658aa51459
commit 304a0d699a
5 changed files with 38 additions and 3 deletions
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4
arch/sparc/include/asm/atomic_32.h
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@@ -17,10 +17,14 @@
#include <asm/barrier.h>
#include <asm-generic/atomic64.h>
#define CONFIG_ARCH_HAS_ATOMIC_OR
#define ATOMIC_INIT(i) { (i) }
int atomic_add_return(int, atomic_t *);
void atomic_and(int, atomic_t *);
void atomic_or(int, atomic_t *);
void atomic_xor(int, atomic_t *);
int atomic_cmpxchg(atomic_t *, int, int);
int atomic_xchg(atomic_t *, int);
int __atomic_add_unless(atomic_t *, int, int);

6
arch/sparc/include/asm/atomic_64.h
View File

@@ -33,6 +33,12 @@ long atomic64_##op##_return(long, atomic64_t *);
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
#define CONFIG_ARCH_HAS_ATOMIC_OR
ATOMIC_OP(and)
ATOMIC_OP(or)
ATOMIC_OP(xor)
#undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP