2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2017 The FreeBSD Foundation
7 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
8 * under sponsorship from the FreeBSD Foundation.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #ifndef _SYS_ATOMIC_COMMON_H_
34 #define _SYS_ATOMIC_COMMON_H_
36 #ifndef _MACHINE_ATOMIC_H_
37 #error do not include this header, use machine/atomic.h
40 #define atomic_load_char(p) (*(volatile u_char *)(p))
41 #define atomic_load_short(p) (*(volatile u_short *)(p))
42 #define atomic_load_int(p) (*(volatile u_int *)(p))
43 #define atomic_load_long(p) (*(volatile u_long *)(p))
44 #define atomic_load_ptr(p) (*(volatile __typeof(*p) *)(p))
45 #define atomic_load_8(p) (*(volatile uint8_t *)(p))
46 #define atomic_load_16(p) (*(volatile uint16_t *)(p))
47 #define atomic_load_32(p) (*(volatile uint32_t *)(p))
49 #define atomic_load_64(p) (*(volatile uint64_t *)(p))
52 #define atomic_store_char(p, v) \
53 (*(volatile u_char *)(p) = (u_char)(v))
54 #define atomic_store_short(p, v) \
55 (*(volatile u_short *)(p) = (u_short)(v))
56 #define atomic_store_int(p, v) \
57 (*(volatile u_int *)(p) = (u_int)(v))
58 #define atomic_store_long(p, v) \
59 (*(volatile u_long *)(p) = (u_long)(v))
60 #define atomic_store_ptr(p, v) \
61 (*(volatile uintptr_t *)(p) = (uintptr_t)(v))
62 #define atomic_store_8(p, v) \
63 (*(volatile uint8_t *)(p) = (uint8_t)(v))
64 #define atomic_store_16(p, v) \
65 (*(volatile uint16_t *)(p) = (uint16_t)(v))
66 #define atomic_store_32(p, v) \
67 (*(volatile uint32_t *)(p) = (uint32_t)(v))
69 #define atomic_store_64(p, v) \
70 (*(volatile uint64_t *)(p) = (uint64_t)(v))