2008-10-22 23:26:29 -06:00
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#ifndef _ASM_X86_CMPXCHG_64_H
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#define _ASM_X86_CMPXCHG_64_H
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2007-05-08 01:35:02 -06:00
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2011-08-18 12:40:22 -06:00
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static inline void set_64bit(volatile u64 *ptr, u64 val)
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{
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*ptr = val;
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}
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2009-10-09 02:12:46 -06:00
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#define __HAVE_ARCH_CMPXCHG 1
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2007-05-08 01:35:02 -06:00
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2008-02-07 01:16:10 -07:00
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#define cmpxchg64(ptr, o, n) \
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2008-03-23 02:01:52 -06:00
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({ \
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2008-02-07 01:16:10 -07:00
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BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
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cmpxchg((ptr), (o), (n)); \
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2008-03-23 02:01:52 -06:00
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})
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2009-10-09 02:12:46 -06:00
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2008-02-07 01:16:10 -07:00
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#define cmpxchg64_local(ptr, o, n) \
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2008-03-23 02:01:52 -06:00
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({ \
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2008-02-07 01:16:10 -07:00
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BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
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cmpxchg_local((ptr), (o), (n)); \
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2008-03-23 02:01:52 -06:00
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})
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2007-05-08 01:35:02 -06:00
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2011-06-01 11:25:47 -06:00
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#define system_has_cmpxchg_double() cpu_has_cx16
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2008-10-22 23:26:29 -06:00
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#endif /* _ASM_X86_CMPXCHG_64_H */
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