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update ppc atomic code to match the endian-agnostic version on other archs

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This commit is contained in:
Rich Felker
2012-11-14 14:08:33 -05:00
parent 50cb6dbb0c
commit 574d01a696
1 changed files with 6 additions and 14 deletions
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arch/powerpc/atomic.h
+6 -14
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@@ -101,24 +101,16 @@ static inline void a_or(volatile int *p, int v)
static inline void a_and_64(volatile uint64_t *p, uint64_t v) static inline void a_and_64(volatile uint64_t *p, uint64_t v)
{ {
#if __BYTE_ORDER == __LITTLE_ENDIAN union { uint64_t v; uint32_t r[2]; } u = { v };
a_and((int *)p, v); a_and((int *)p, u.r[0]);
a_and((int *)p+1, v>>32); a_and((int *)p+1, u.r[1]);
#else
a_and((int *)p+1, v);
a_and((int *)p, v>>32);
#endif
} }
static inline void a_or_64(volatile uint64_t *p, uint64_t v) static inline void a_or_64(volatile uint64_t *p, uint64_t v)
{ {
#if __BYTE_ORDER == __LITTLE_ENDIAN union { uint64_t v; uint32_t r[2]; } u = { v };
a_or((int *)p, v); a_or((int *)p, u.r[0]);
a_or((int *)p+1, v>>32); a_or((int *)p+1, u.r[1]);
#else
a_or((int *)p+1, v);
a_or((int *)p, v>>32);
#endif
} }
#endif #endif