Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Ivan Kokshaysky |
48 |
35.56% |
1 |
7.69% |
| Mathieu Desnoyers |
24 |
17.78% |
1 |
7.69% |
| Paul Gortmaker |
24 |
17.78% |
1 |
7.69% |
| Linus Torvalds (pre-git) |
24 |
17.78% |
5 |
38.46% |
| Mark Rutland |
6 |
4.44% |
1 |
7.69% |
| Andrzej Hajda |
4 |
2.96% |
1 |
7.69% |
| Al Viro |
2 |
1.48% |
1 |
7.69% |
| Andrea Parri |
2 |
1.48% |
1 |
7.69% |
| Greg Kroah-Hartman |
1 |
0.74% |
1 |
7.69% |
| Total |
135 |
|
13 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ALPHA_CMPXCHG_H
#define _ALPHA_CMPXCHG_H
/*
* Atomic exchange routines.
*/
#define ____xchg(type, args...) __arch_xchg ## type ## _local(args)
#define ____cmpxchg(type, args...) __cmpxchg ## type ## _local(args)
#include <asm/xchg.h>
#define xchg_local(ptr, x) \
({ \
__typeof__(*(ptr)) _x_ = (x); \
(__typeof__(*(ptr))) __arch_xchg_local((ptr), (unsigned long)_x_,\
sizeof(*(ptr))); \
})
#define arch_cmpxchg_local(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
(__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_, \
(unsigned long)_n_, \
sizeof(*(ptr))); \
})
#define arch_cmpxchg64_local(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg_local((ptr), (o), (n)); \
})
#undef ____xchg
#undef ____cmpxchg
#define ____xchg(type, args...) __arch_xchg ##type(args)
#define ____cmpxchg(type, args...) __cmpxchg ##type(args)
#include <asm/xchg.h>
/*
* The leading and the trailing memory barriers guarantee that these
* operations are fully ordered.
*/
#define arch_xchg(ptr, x) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) _x_ = (x); \
smp_mb(); \
__ret = (__typeof__(*(ptr))) \
__arch_xchg((ptr), (unsigned long)_x_, sizeof(*(ptr))); \
smp_mb(); \
__ret; \
})
#define arch_cmpxchg(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
smp_mb(); \
__ret = (__typeof__(*(ptr))) __cmpxchg((ptr), \
(unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr)));\
smp_mb(); \
__ret; \
})
#define arch_cmpxchg64(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
arch_cmpxchg((ptr), (o), (n)); \
})
#undef ____cmpxchg
#endif /* _ALPHA_CMPXCHG_H */