xref: /freebsd/sys/arm/include/atomic.h (revision 43d1e6ee299ad4e143d90d3ad374d1c24bd3306f)
1 /* $NetBSD: atomic.h,v 1.1 2002/10/19 12:22:34 bsh Exp $ */
2 
3 /*-
4  * SPDX-License-Identifier: BSD-4-Clause
5  *
6  * Copyright (C) 2003-2004 Olivier Houchard
7  * Copyright (C) 1994-1997 Mark Brinicombe
8  * Copyright (C) 1994 Brini
9  * All rights reserved.
10  *
11  * This code is derived from software written for Brini by Mark Brinicombe
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. All advertising materials mentioning features or use of this software
22  *    must display the following acknowledgement:
23  *	This product includes software developed by Brini.
24  * 4. The name of Brini may not be used to endorse or promote products
25  *    derived from this software without specific prior written permission.
26  *
27  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR
28  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
29  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
30  * IN NO EVENT SHALL BRINI BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
33  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
34  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
35  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
36  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37  *
38  * $FreeBSD$
39  */
40 
41 #ifndef	_MACHINE_ATOMIC_H_
42 #define	_MACHINE_ATOMIC_H_
43 
44 #include <sys/atomic_common.h>
45 
46 #include <machine/armreg.h>
47 
48 #ifndef _KERNEL
49 #include <machine/sysarch.h>
50 #endif
51 
52 #if __ARM_ARCH >= 6
53 #include <machine/atomic-v6.h>
54 #else /* < armv6 */
55 #include <machine/atomic-v4.h>
56 #endif /* Arch >= v6 */
57 
58 static __inline u_long
59 atomic_swap_long(volatile u_long *p, u_long v)
60 {
61 
62 	return (atomic_swap_32((volatile uint32_t *)p, v));
63 }
64 
65 #define atomic_clear_ptr		atomic_clear_32
66 #define atomic_clear_acq_ptr		atomic_clear_acq_32
67 #define atomic_clear_rel_ptr		atomic_clear_rel_32
68 #define atomic_set_ptr			atomic_set_32
69 #define atomic_set_acq_ptr		atomic_set_acq_32
70 #define atomic_set_rel_ptr		atomic_set_rel_32
71 #define atomic_fcmpset_ptr		atomic_fcmpset_32
72 #define atomic_fcmpset_rel_ptr		atomic_fcmpset_rel_32
73 #define atomic_fcmpset_acq_ptr		atomic_fcmpset_acq_32
74 #define atomic_cmpset_ptr		atomic_cmpset_32
75 #define atomic_cmpset_acq_ptr		atomic_cmpset_acq_32
76 #define atomic_cmpset_rel_ptr		atomic_cmpset_rel_32
77 #define atomic_load_acq_ptr		atomic_load_acq_32
78 #define atomic_store_rel_ptr		atomic_store_rel_32
79 #define atomic_swap_ptr			atomic_swap_32
80 #define atomic_readandclear_ptr		atomic_readandclear_32
81 
82 #define atomic_add_int			atomic_add_32
83 #define atomic_add_acq_int		atomic_add_acq_32
84 #define atomic_add_rel_int		atomic_add_rel_32
85 #define atomic_subtract_int		atomic_subtract_32
86 #define atomic_subtract_acq_int		atomic_subtract_acq_32
87 #define atomic_subtract_rel_int		atomic_subtract_rel_32
88 #define atomic_clear_int		atomic_clear_32
89 #define atomic_clear_acq_int		atomic_clear_acq_32
90 #define atomic_clear_rel_int		atomic_clear_rel_32
91 #define atomic_set_int			atomic_set_32
92 #define atomic_set_acq_int		atomic_set_acq_32
93 #define atomic_set_rel_int		atomic_set_rel_32
94 #define atomic_fcmpset_int		atomic_fcmpset_32
95 #define atomic_fcmpset_acq_int		atomic_fcmpset_acq_32
96 #define atomic_fcmpset_rel_int		atomic_fcmpset_rel_32
97 #define atomic_cmpset_int		atomic_cmpset_32
98 #define atomic_cmpset_acq_int		atomic_cmpset_acq_32
99 #define atomic_cmpset_rel_int		atomic_cmpset_rel_32
100 #define atomic_fetchadd_int		atomic_fetchadd_32
101 #define atomic_readandclear_int		atomic_readandclear_32
102 #define atomic_load_acq_int		atomic_load_acq_32
103 #define atomic_store_rel_int		atomic_store_rel_32
104 #define atomic_swap_int			atomic_swap_32
105 
106 #endif /* _MACHINE_ATOMIC_H_ */
107