1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
/* $NetBSD: atomic.h,v 1.1 2002/10/19 12:22:34 bsh Exp $ */
/*-
* Copyright (C) 2003-2004 Olivier Houchard
* Copyright (C) 1994-1997 Mark Brinicombe
* Copyright (C) 1994 Brini
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Brini.
* 4. The name of Brini may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL BRINI BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_ATOMIC_H_
#define _MACHINE_ATOMIC_H_
#include <machine/armreg.h>
#ifndef _KERNEL
#include <machine/sysarch.h>
#endif
#if __ARM_ARCH >= 6
#include <machine/atomic-v6.h>
#else /* < armv6 */
#include <machine/atomic-v4.h>
#endif /* Arch >= v6 */
static __inline int
atomic_load_32(volatile uint32_t *v)
{
return (*v);
}
static __inline void
atomic_store_32(volatile uint32_t *dst, uint32_t src)
{
*dst = src;
}
static __inline int
atomic_load_long(volatile u_long *v)
{
return (*v);
}
static __inline void
atomic_store_long(volatile u_long *dst, u_long src)
{
*dst = src;
}
#define atomic_clear_ptr atomic_clear_32
#define atomic_set_ptr atomic_set_32
#define atomic_fcmpset_ptr atomic_fcmpset_32
#define atomic_fcmpset_rel_ptr atomic_fcmpset_rel_32
#define atomic_fcmpset_acq_ptr atomic_fcmpset_acq_32
#define atomic_cmpset_ptr atomic_cmpset_32
#define atomic_cmpset_rel_ptr atomic_cmpset_rel_32
#define atomic_cmpset_acq_ptr atomic_cmpset_acq_32
#define atomic_store_ptr atomic_store_32
#define atomic_store_rel_ptr atomic_store_rel_32
#define atomic_add_int atomic_add_32
#define atomic_add_acq_int atomic_add_acq_32
#define atomic_add_rel_int atomic_add_rel_32
#define atomic_subtract_int atomic_subtract_32
#define atomic_subtract_acq_int atomic_subtract_acq_32
#define atomic_subtract_rel_int atomic_subtract_rel_32
#define atomic_clear_int atomic_clear_32
#define atomic_clear_acq_int atomic_clear_acq_32
#define atomic_clear_rel_int atomic_clear_rel_32
#define atomic_set_int atomic_set_32
#define atomic_set_acq_int atomic_set_acq_32
#define atomic_set_rel_int atomic_set_rel_32
#define atomic_fcmpset_int atomic_fcmpset_32
#define atomic_fcmpset_acq_int atomic_fcmpset_acq_32
#define atomic_fcmpset_rel_int atomic_fcmpset_rel_32
#define atomic_cmpset_int atomic_cmpset_32
#define atomic_cmpset_acq_int atomic_cmpset_acq_32
#define atomic_cmpset_rel_int atomic_cmpset_rel_32
#define atomic_fetchadd_int atomic_fetchadd_32
#define atomic_readandclear_int atomic_readandclear_32
#define atomic_load_acq_int atomic_load_acq_32
#define atomic_store_rel_int atomic_store_rel_32
#define atomic_swap_int atomic_swap_32
#endif /* _MACHINE_ATOMIC_H_ */
|
