| The Android Open Source Project | 1dc9e47 | 2009-03-03 19:28:35 -0800 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | **************************************************************************** |
| 3 | *** |
| 4 | *** This header was automatically generated from a Linux kernel header |
| 5 | *** of the same name, to make information necessary for userspace to |
| 6 | *** call into the kernel available to libc. It contains only constants, |
| 7 | *** structures, and macros generated from the original header, and thus, |
| 8 | *** contains no copyrightable information. |
| 9 | *** |
| 10 | **************************************************************************** |
| 11 | ****************************************************************************/ |
| 12 | #ifndef __ASM_CMPXCHG_H |
| 13 | #define __ASM_CMPXCHG_H |
| 14 | |
| 15 | #include <linux/bitops.h> |
| 16 | |
| 17 | #define xchg(ptr,v) ((__typeof__(*(ptr)))__xchg((unsigned long)(v),(ptr),sizeof(*(ptr)))) |
| 18 | |
| 19 | struct __xchg_dummy { unsigned long a[100]; }; |
| 20 | #define __xg(x) ((struct __xchg_dummy *)(x)) |
| 21 | |
| 22 | #define ll_low(x) *(((unsigned int*)&(x))+0) |
| 23 | #define ll_high(x) *(((unsigned int*)&(x))+1) |
| 24 | #define set_64bit(ptr,value) (__builtin_constant_p(value) ? __set_64bit_constant(ptr, value) : __set_64bit_var(ptr, value) ) |
| 25 | #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)) ) |
| 26 | |
| 27 | #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; }) |
| 28 | #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; }) |
| 29 | #define cmpxchg64(ptr,o,n) ((__typeof__(*(ptr)))__cmpxchg64((ptr),(unsigned long long)(o), (unsigned long long)(n))) |
| 30 | #define cmpxchg64_local(ptr,o,n) ((__typeof__(*(ptr)))__cmpxchg64_local((ptr),(unsigned long long)(o), (unsigned long long)(n))) |
| 31 | #endif |