1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2019 Justin Hibbits
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#ifndef _SYS_ATOMIC64E_H_
29#define _SYS_ATOMIC64E_H_
30
31#ifndef _MACHINE_ATOMIC_H_
32#error "This should not be included directly. Include <machine/atomic.h>"
33#endif
34
35#ifdef _KERNEL
36#define HAS_EMULATED_ATOMIC64
37
38/* Emulated versions of 64-bit atomic operations. */
39
40void atomic_add_64(volatile u_int64_t *, u_int64_t);
41#define atomic_add_acq_64 atomic_add_64
42#define atomic_add_rel_64 atomic_add_64
43
44int atomic_cmpset_64(volatile u_int64_t *, u_int64_t, u_int64_t);
45#define atomic_cmpset_acq_64 atomic_cmpset_64
46#define atomic_cmpset_rel_64 atomic_cmpset_64
47
48void atomic_clear_64(volatile u_int64_t *, u_int64_t);
49#define atomic_clear_acq_64 atomic_clear_64
50#define atomic_clear_rel_64 atomic_clear_64
51
52int atomic_fcmpset_64(volatile u_int64_t *, u_int64_t *, u_int64_t);
53#define atomic_fcmpset_acq_64 atomic_fcmpset_64
54#define atomic_fcmpset_rel_64 atomic_fcmpset_64
55
56u_int64_t atomic_fetchadd_64(volatile u_int64_t *, u_int64_t);
57
58u_int64_t atomic_load_64(const volatile u_int64_t *);
59#define atomic_load_acq_64 atomic_load_64
60
61void atomic_readandclear_64(volatile u_int64_t *);
62
63void atomic_set_64(volatile u_int64_t *, u_int64_t);
64#define atomic_set_acq_64 atomic_set_64
65#define atomic_set_rel_64 atomic_set_64
66
67void atomic_subtract_64(volatile u_int64_t *, u_int64_t);
68#define atomic_subtract_acq_64 atomic_subtract_64
69#define atomic_subtract_rel_64 atomic_subtract_64
70
71void atomic_store_64(volatile u_int64_t *, u_int64_t);
72#define atomic_store_rel_64 atomic_store_64
73
74u_int64_t atomic_swap_64(volatile u_int64_t *, u_int64_t);
75
76#endif /* _KERNEL */
77#endif /* _SYS_ATOMIC64E_H_ */