xref: /xnu-8792.61.2/osfmk/arm/atomic.h (revision 42e220869062b56f8d7d0726fd4c88954f87902c)
1*42e22086SApple OSS Distributions /*
2*42e22086SApple OSS Distributions  * Copyright (c) 2015-2018 Apple Inc. All rights reserved.
3*42e22086SApple OSS Distributions  *
4*42e22086SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*42e22086SApple OSS Distributions  *
6*42e22086SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*42e22086SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*42e22086SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*42e22086SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*42e22086SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*42e22086SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*42e22086SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*42e22086SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*42e22086SApple OSS Distributions  *
15*42e22086SApple OSS Distributions  * Please obtain a copy of the License at
16*42e22086SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*42e22086SApple OSS Distributions  *
18*42e22086SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*42e22086SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*42e22086SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*42e22086SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*42e22086SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*42e22086SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*42e22086SApple OSS Distributions  * limitations under the License.
25*42e22086SApple OSS Distributions  *
26*42e22086SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*42e22086SApple OSS Distributions  */
28*42e22086SApple OSS Distributions 
29*42e22086SApple OSS Distributions #ifndef _MACHINE_ATOMIC_H
30*42e22086SApple OSS Distributions #error "Do not include <arm/atomic.h> directly, use <machine/atomic.h>"
31*42e22086SApple OSS Distributions #endif
32*42e22086SApple OSS Distributions 
33*42e22086SApple OSS Distributions #ifndef _ARM_ATOMIC_H_
34*42e22086SApple OSS Distributions #define _ARM_ATOMIC_H_
35*42e22086SApple OSS Distributions 
36*42e22086SApple OSS Distributions #include <mach/boolean.h>
37*42e22086SApple OSS Distributions 
38*42e22086SApple OSS Distributions // Parameter for __builtin_arm_dmb
39*42e22086SApple OSS Distributions #define DMB_OSHLD       0x1
40*42e22086SApple OSS Distributions #define DMB_OSHST       0x2
41*42e22086SApple OSS Distributions #define DMB_OSH         0x3
42*42e22086SApple OSS Distributions #define DMB_NSHLD       0x5
43*42e22086SApple OSS Distributions #define DMB_NSHST       0x6
44*42e22086SApple OSS Distributions #define DMB_NSH         0x7
45*42e22086SApple OSS Distributions #define DMB_ISHLD       0x9
46*42e22086SApple OSS Distributions #define DMB_ISHST       0xa
47*42e22086SApple OSS Distributions #define DMB_ISH         0xb
48*42e22086SApple OSS Distributions #define DMB_LD          0xd
49*42e22086SApple OSS Distributions #define DMB_ST          0xe
50*42e22086SApple OSS Distributions #define DMB_SY          0xf
51*42e22086SApple OSS Distributions 
52*42e22086SApple OSS Distributions // Parameter for __builtin_arm_dsb
53*42e22086SApple OSS Distributions #define DSB_OSHLD       0x1
54*42e22086SApple OSS Distributions #define DSB_OSHST       0x2
55*42e22086SApple OSS Distributions #define DSB_OSH         0x3
56*42e22086SApple OSS Distributions #define DSB_NSHLD       0x5
57*42e22086SApple OSS Distributions #define DSB_NSHST       0x6
58*42e22086SApple OSS Distributions #define DSB_NSH         0x7
59*42e22086SApple OSS Distributions #define DSB_ISHLD       0x9
60*42e22086SApple OSS Distributions #define DSB_ISHST       0xa
61*42e22086SApple OSS Distributions #define DSB_ISH         0xb
62*42e22086SApple OSS Distributions #define DSB_LD          0xd
63*42e22086SApple OSS Distributions #define DSB_ST          0xe
64*42e22086SApple OSS Distributions #define DSB_SY          0xf
65*42e22086SApple OSS Distributions 
66*42e22086SApple OSS Distributions // Parameter for __builtin_arm_isb
67*42e22086SApple OSS Distributions #define ISB_SY          0xf
68*42e22086SApple OSS Distributions 
69*42e22086SApple OSS Distributions #endif // _ARM_ATOMIC_H_
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