2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2019 Justin Hibbits
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #ifndef _SYS_ATOMIC64E_H_
31 #define _SYS_ATOMIC64E_H_
33 #ifndef _MACHINE_ATOMIC_H_
34 #error "This should not be included directly. Include <machine/atomic.h>"
38 #define HAS_EMULATED_ATOMIC64
40 /* Emulated versions of 64-bit atomic operations. */
42 void atomic_add_64(volatile u_int64_t *, u_int64_t);
43 #define atomic_add_acq_64 atomic_add_64
44 #define atomic_add_rel_64 atomic_add_64
46 int atomic_cmpset_64(volatile u_int64_t *, u_int64_t, u_int64_t);
47 #define atomic_cmpset_acq_64 atomic_cmpset_64
48 #define atomic_cmpset_rel_64 atomic_cmpset_64
50 void atomic_clear_64(volatile u_int64_t *, u_int64_t);
51 #define atomic_clear_acq_64 atomic_clear_64
52 #define atomic_clear_rel_64 atomic_clear_64
54 int atomic_fcmpset_64(volatile u_int64_t *, u_int64_t *, u_int64_t);
55 #define atomic_fcmpset_acq_64 atomic_fcmpset_64
56 #define atomic_fcmpset_rel_64 atomic_fcmpset_64
58 u_int64_t atomic_fetchadd_64(volatile u_int64_t *, u_int64_t);
60 u_int64_t atomic_load_64(volatile u_int64_t *);
61 #define atomic_load_acq_64 atomic_load_64
63 void atomic_readandclear_64(volatile u_int64_t *);
65 void atomic_set_64(volatile u_int64_t *, u_int64_t);
66 #define atomic_set_acq_64 atomic_set_64
67 #define atomic_set_rel_64 atomic_set_64
69 void atomic_subtract_64(volatile u_int64_t *, u_int64_t);
70 #define atomic_subtract_acq_64 atomic_subtract_64
71 #define atomic_subtract_rel_64 atomic_subtract_64
73 void atomic_store_64(volatile u_int64_t *, u_int64_t);
74 #define atomic_store_rel_64 atomic_store_64
76 u_int64_t atomic_swap_64(volatile u_int64_t *, u_int64_t);
79 #endif /* _SYS_ATOMIC64E_H_ */