Contributors: 21
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Dmitriy Vyukov |
150 |
23.47% |
3 |
7.50% |
| Brian Gerst |
147 |
23.00% |
1 |
2.50% |
| Peter Zijlstra |
134 |
20.97% |
11 |
27.50% |
| Mark Rutland |
57 |
8.92% |
5 |
12.50% |
| Paul Mackerras |
51 |
7.98% |
1 |
2.50% |
| Andi Kleen |
43 |
6.73% |
2 |
5.00% |
| Joe Perches |
10 |
1.56% |
1 |
2.50% |
| H. Peter Anvin |
10 |
1.56% |
3 |
7.50% |
| Jeremy Fitzhardinge |
6 |
0.94% |
1 |
2.50% |
| Uros Bizjak |
6 |
0.94% |
1 |
2.50% |
| Hagen Paul Pfeifer |
4 |
0.63% |
1 |
2.50% |
| Will Deacon |
4 |
0.63% |
1 |
2.50% |
| Randy Dunlap |
4 |
0.63% |
1 |
2.50% |
| David Howells |
3 |
0.47% |
1 |
2.50% |
| Pranith Kumar |
2 |
0.31% |
1 |
2.50% |
| Mathieu Desnoyers |
2 |
0.31% |
1 |
2.50% |
| Anton Blanchard |
2 |
0.31% |
1 |
2.50% |
| Matthew Wilcox |
1 |
0.16% |
1 |
2.50% |
| Gerd Hoffmann |
1 |
0.16% |
1 |
2.50% |
| Jeff Dike |
1 |
0.16% |
1 |
2.50% |
| Greg Kroah-Hartman |
1 |
0.16% |
1 |
2.50% |
| Total |
639 |
|
40 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ATOMIC64_64_H
#define _ASM_X86_ATOMIC64_64_H
#include <linux/types.h>
#include <asm/alternative.h>
#include <asm/cmpxchg.h>
/* The 64-bit atomic type */
#define ATOMIC64_INIT(i) { (i) }
static __always_inline s64 arch_atomic64_read(const atomic64_t *v)
{
return __READ_ONCE((v)->counter);
}
static __always_inline void arch_atomic64_set(atomic64_t *v, s64 i)
{
__WRITE_ONCE(v->counter, i);
}
static __always_inline void arch_atomic64_add(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "addq %1,%0"
: "=m" (v->counter)
: "er" (i), "m" (v->counter) : "memory");
}
static __always_inline void arch_atomic64_sub(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "subq %1,%0"
: "=m" (v->counter)
: "er" (i), "m" (v->counter) : "memory");
}
static __always_inline bool arch_atomic64_sub_and_test(s64 i, atomic64_t *v)
{
return GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, e, "er", i);
}
#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test
static __always_inline void arch_atomic64_inc(atomic64_t *v)
{
asm volatile(LOCK_PREFIX "incq %0"
: "=m" (v->counter)
: "m" (v->counter) : "memory");
}
#define arch_atomic64_inc arch_atomic64_inc
static __always_inline void arch_atomic64_dec(atomic64_t *v)
{
asm volatile(LOCK_PREFIX "decq %0"
: "=m" (v->counter)
: "m" (v->counter) : "memory");
}
#define arch_atomic64_dec arch_atomic64_dec
static __always_inline bool arch_atomic64_dec_and_test(atomic64_t *v)
{
return GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, e);
}
#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test
static __always_inline bool arch_atomic64_inc_and_test(atomic64_t *v)
{
return GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, e);
}
#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test
static __always_inline bool arch_atomic64_add_negative(s64 i, atomic64_t *v)
{
return GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, s, "er", i);
}
#define arch_atomic64_add_negative arch_atomic64_add_negative
static __always_inline s64 arch_atomic64_add_return(s64 i, atomic64_t *v)
{
return i + xadd(&v->counter, i);
}
#define arch_atomic64_add_return arch_atomic64_add_return
#define arch_atomic64_sub_return(i, v) arch_atomic64_add_return(-(i), v)
static __always_inline s64 arch_atomic64_fetch_add(s64 i, atomic64_t *v)
{
return xadd(&v->counter, i);
}
#define arch_atomic64_fetch_add arch_atomic64_fetch_add
#define arch_atomic64_fetch_sub(i, v) arch_atomic64_fetch_add(-(i), v)
static __always_inline s64 arch_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
{
return arch_cmpxchg(&v->counter, old, new);
}
#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
static __always_inline bool arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
{
return arch_try_cmpxchg(&v->counter, old, new);
}
#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
static __always_inline s64 arch_atomic64_xchg(atomic64_t *v, s64 new)
{
return arch_xchg(&v->counter, new);
}
#define arch_atomic64_xchg arch_atomic64_xchg
static __always_inline void arch_atomic64_and(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "andq %1,%0"
: "+m" (v->counter)
: "er" (i)
: "memory");
}
static __always_inline s64 arch_atomic64_fetch_and(s64 i, atomic64_t *v)
{
s64 val = arch_atomic64_read(v);
do {
} while (!arch_atomic64_try_cmpxchg(v, &val, val & i));
return val;
}
#define arch_atomic64_fetch_and arch_atomic64_fetch_and
static __always_inline void arch_atomic64_or(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "orq %1,%0"
: "+m" (v->counter)
: "er" (i)
: "memory");
}
static __always_inline s64 arch_atomic64_fetch_or(s64 i, atomic64_t *v)
{
s64 val = arch_atomic64_read(v);
do {
} while (!arch_atomic64_try_cmpxchg(v, &val, val | i));
return val;
}
#define arch_atomic64_fetch_or arch_atomic64_fetch_or
static __always_inline void arch_atomic64_xor(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "xorq %1,%0"
: "+m" (v->counter)
: "er" (i)
: "memory");
}
static __always_inline s64 arch_atomic64_fetch_xor(s64 i, atomic64_t *v)
{
s64 val = arch_atomic64_read(v);
do {
} while (!arch_atomic64_try_cmpxchg(v, &val, val ^ i));
return val;
}
#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
#endif /* _ASM_X86_ATOMIC64_64_H */