32 lines
2.1 KiB
C
32 lines
2.1 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef __ASM_CMPXCHG_H
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#define __ASM_CMPXCHG_H
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#include <linux/bitops.h>
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#define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr))))
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struct __xchg_dummy { unsigned long a[100]; };
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#define __xg(x) ((struct __xchg_dummy *)(x))
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#define ll_low(x) *(((unsigned int*)&(x))+0)
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#define ll_high(x) *(((unsigned int*)&(x))+1)
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#define set_64bit(ptr,value) (__builtin_constant_p(value) ? __set_64bit_constant(ptr, value) : __set_64bit_var(ptr, value) )
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#define _set_64bit(ptr,value) (__builtin_constant_p(value) ? __set_64bit(ptr, (unsigned int)(value), (unsigned int)((value)>>32ULL) ) : __set_64bit(ptr, ll_low(value), ll_high(value)) )
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#define cmpxchg(ptr,o,n) ({ __typeof__(*(ptr)) __ret; if (likely(boot_cpu_data.x86 > 3)) __ret = __cmpxchg((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); else __ret = cmpxchg_386((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); __ret; })
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#define cmpxchg_local(ptr,o,n) ({ __typeof__(*(ptr)) __ret; if (likely(boot_cpu_data.x86 > 3)) __ret = __cmpxchg_local((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); else __ret = cmpxchg_386((ptr), (unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))); __ret; })
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#define cmpxchg64(ptr,o,n) ((__typeof__(*(ptr)))__cmpxchg64((ptr),(unsigned long long)(o), (unsigned long long)(n)))
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#define cmpxchg64_local(ptr,o,n) ((__typeof__(*(ptr)))__cmpxchg64_local((ptr),(unsigned long long)(o), (unsigned long long)(n)))
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#endif
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