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m68k: 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: Geert Uytterhoeven <geert@linux-m68k.org>
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 19:56:20 +02:00 • committed by Thomas Gleixner
parent c66e45edef
commit 74b1bc505b
1 changed files with 10 additions and 4 deletions
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14
arch/m68k/include/asm/atomic.h
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@ -77,6 +77,12 @@ static inline int atomic_##op##_return(int i, atomic_t * v) \
ATOMIC_OPS(add, +=, add) ATOMIC_OPS(add, +=, add)
ATOMIC_OPS(sub, -=, sub) ATOMIC_OPS(sub, -=, sub)
#define CONFIG_ARCH_HAS_ATOMIC_OR
ATOMIC_OP(and, &=, and)
ATOMIC_OP(or, |=, or)
ATOMIC_OP(xor, ^=, eor)
#undef ATOMIC_OPS #undef ATOMIC_OPS
#undef ATOMIC_OP_RETURN #undef ATOMIC_OP_RETURN
#undef ATOMIC_OP #undef ATOMIC_OP
@ -170,14 +176,14 @@ static inline int atomic_add_negative(int i, atomic_t *v)
return c != 0; return c != 0;
} }
static inline void atomic_clear_mask(unsigned long mask, unsigned long *v) static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
{ {
__asm__ __volatile__("andl %1,%0" : "+m" (*v) : ASM_DI (~(mask))); atomic_and(~mask, v);
} }
static inline void atomic_set_mask(unsigned long mask, unsigned long *v) static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v)
{ {
__asm__ __volatile__("orl %1,%0" : "+m" (*v) : ASM_DI (mask)); atomic_or(mask, v);
} }
static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)