1/*	$NetBSD: atomic_store.c,v 1.5 2024/02/04 16:19:12 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__RCSID("$NetBSD: atomic_store.c,v 1.5 2024/02/04 16:19:12 christos Exp $");
31
32#include "atomic_op_namespace.h"
33
34#include <sys/types.h>
35#include <sys/atomic.h>
36
37#define atomic_store_n(n,b) \
38void __atomic_store_ ## n(volatile void *, uint ## b ## _t, int); \
39/*ARGSUSED*/ \
40void \
41__atomic_store_ ## n(volatile void *ptr, uint ## b ## _t val, \
42                     int memmodel __unused) \
43{ \
44	membar_release(); \
45	*(volatile uint ## b ## _t *)ptr = val; \
46}
47
48atomic_store_n(1, 8)
49atomic_store_n(2, 16)
50atomic_store_n(4, 32)
51#ifdef	__HAVE_ATOMIC_CAS_64_UP
52atomic_store_n(8, 64)
53#endif
54