xref: /xnu-8020.101.4/osfmk/arm/atomic.h (revision e7776783b89a353188416a9a346c6cdb4928faad)
1*e7776783SApple OSS Distributions /*
2*e7776783SApple OSS Distributions  * Copyright (c) 2015-2018 Apple Inc. All rights reserved.
3*e7776783SApple OSS Distributions  *
4*e7776783SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*e7776783SApple OSS Distributions  *
6*e7776783SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*e7776783SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*e7776783SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*e7776783SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*e7776783SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*e7776783SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*e7776783SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*e7776783SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*e7776783SApple OSS Distributions  *
15*e7776783SApple OSS Distributions  * Please obtain a copy of the License at
16*e7776783SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*e7776783SApple OSS Distributions  *
18*e7776783SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*e7776783SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*e7776783SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*e7776783SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*e7776783SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*e7776783SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*e7776783SApple OSS Distributions  * limitations under the License.
25*e7776783SApple OSS Distributions  *
26*e7776783SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*e7776783SApple OSS Distributions  */
28*e7776783SApple OSS Distributions 
29*e7776783SApple OSS Distributions #ifndef _MACHINE_ATOMIC_H
30*e7776783SApple OSS Distributions #error "Do not include <arm/atomic.h> directly, use <machine/atomic.h>"
31*e7776783SApple OSS Distributions #endif
32*e7776783SApple OSS Distributions 
33*e7776783SApple OSS Distributions #ifndef _ARM_ATOMIC_H_
34*e7776783SApple OSS Distributions #define _ARM_ATOMIC_H_
35*e7776783SApple OSS Distributions 
36*e7776783SApple OSS Distributions #include <mach/boolean.h>
37*e7776783SApple OSS Distributions 
38*e7776783SApple OSS Distributions // Parameter for __builtin_arm_dmb
39*e7776783SApple OSS Distributions #define DMB_OSHLD       0x1
40*e7776783SApple OSS Distributions #define DMB_OSHST       0x2
41*e7776783SApple OSS Distributions #define DMB_OSH         0x3
42*e7776783SApple OSS Distributions #define DMB_NSHLD       0x5
43*e7776783SApple OSS Distributions #define DMB_NSHST       0x6
44*e7776783SApple OSS Distributions #define DMB_NSH         0x7
45*e7776783SApple OSS Distributions #define DMB_ISHLD       0x9
46*e7776783SApple OSS Distributions #define DMB_ISHST       0xa
47*e7776783SApple OSS Distributions #define DMB_ISH         0xb
48*e7776783SApple OSS Distributions #define DMB_LD          0xd
49*e7776783SApple OSS Distributions #define DMB_ST          0xe
50*e7776783SApple OSS Distributions #define DMB_SY          0xf
51*e7776783SApple OSS Distributions 
52*e7776783SApple OSS Distributions // Parameter for __builtin_arm_dsb
53*e7776783SApple OSS Distributions #define DSB_OSHLD       0x1
54*e7776783SApple OSS Distributions #define DSB_OSHST       0x2
55*e7776783SApple OSS Distributions #define DSB_OSH         0x3
56*e7776783SApple OSS Distributions #define DSB_NSHLD       0x5
57*e7776783SApple OSS Distributions #define DSB_NSHST       0x6
58*e7776783SApple OSS Distributions #define DSB_NSH         0x7
59*e7776783SApple OSS Distributions #define DSB_ISHLD       0x9
60*e7776783SApple OSS Distributions #define DSB_ISHST       0xa
61*e7776783SApple OSS Distributions #define DSB_ISH         0xb
62*e7776783SApple OSS Distributions #define DSB_LD          0xd
63*e7776783SApple OSS Distributions #define DSB_ST          0xe
64*e7776783SApple OSS Distributions #define DSB_SY          0xf
65*e7776783SApple OSS Distributions 
66*e7776783SApple OSS Distributions // Parameter for __builtin_arm_isb
67*e7776783SApple OSS Distributions #define ISB_SY          0xf
68*e7776783SApple OSS Distributions 
69*e7776783SApple OSS Distributions #endif // _ARM_ATOMIC_H_
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