atomic64.c (dafd95053611aa14dda40266857608d12ddce658) atomic64.c (d73415a315471ac0b127ed3fad45c8ec5d711de1)
1/*
2 * Copyright (C) 2018, Emilio G. Cota <cota@braap.org>
3 *
4 * License: GNU GPL, version 2 or later.
5 * See the COPYING file in the top-level directory.
6 */
7#include "qemu/osdep.h"
8#include "qemu/atomic.h"

--- 37 unchanged lines hidden (view full) ---

46 type ret; \
47 \
48 qemu_spin_lock(lock); \
49 ret = *ptr; \
50 qemu_spin_unlock(lock); \
51 return ret; \
52 }
53
1/*
2 * Copyright (C) 2018, Emilio G. Cota <cota@braap.org>
3 *
4 * License: GNU GPL, version 2 or later.
5 * See the COPYING file in the top-level directory.
6 */
7#include "qemu/osdep.h"
8#include "qemu/atomic.h"

--- 37 unchanged lines hidden (view full) ---

46 type ret; \
47 \
48 qemu_spin_lock(lock); \
49 ret = *ptr; \
50 qemu_spin_unlock(lock); \
51 return ret; \
52 }
53
54GEN_READ(atomic_read_i64, int64_t)
55GEN_READ(atomic_read_u64, uint64_t)
54GEN_READ(qatomic_read_i64, int64_t)
55GEN_READ(qatomic_read_u64, uint64_t)
56#undef GEN_READ
57
58#define GEN_SET(name, type) \
59 void name(type *ptr, type val) \
60 { \
61 QemuSpin *lock = addr_to_lock(ptr); \
62 \
63 qemu_spin_lock(lock); \
64 *ptr = val; \
65 qemu_spin_unlock(lock); \
66 }
67
56#undef GEN_READ
57
58#define GEN_SET(name, type) \
59 void name(type *ptr, type val) \
60 { \
61 QemuSpin *lock = addr_to_lock(ptr); \
62 \
63 qemu_spin_lock(lock); \
64 *ptr = val; \
65 qemu_spin_unlock(lock); \
66 }
67
68GEN_SET(atomic_set_i64, int64_t)
69GEN_SET(atomic_set_u64, uint64_t)
68GEN_SET(qatomic_set_i64, int64_t)
69GEN_SET(qatomic_set_u64, uint64_t)
70#undef GEN_SET
71
70#undef GEN_SET
71
72void atomic64_init(void)
72void qatomic64_init(void)
73{
74 int i;
75
76 lock_size = ROUND_UP(sizeof(QemuSpin), qemu_dcache_linesize);
77 lock_array = qemu_memalign(qemu_dcache_linesize, lock_size * NR_LOCKS);
78 for (i = 0; i < NR_LOCKS; i++) {
79 QemuSpin *lock = lock_array + i * lock_size;
80
81 qemu_spin_init(lock);
82 }
83}
73{
74 int i;
75
76 lock_size = ROUND_UP(sizeof(QemuSpin), qemu_dcache_linesize);
77 lock_array = qemu_memalign(qemu_dcache_linesize, lock_size * NR_LOCKS);
78 for (i = 0; i < NR_LOCKS; i++) {
79 QemuSpin *lock = lock_array + i * lock_size;
80
81 qemu_spin_init(lock);
82 }
83}