]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * Copyright (c) 2019 Apple Inc. All rights reserved. | |
3 | * | |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ | |
5 | * | |
6 | * This file contains Original Code and/or Modifications of Original Code | |
7 | * as defined in and that are subject to the Apple Public Source License | |
8 | * Version 2.0 (the 'License'). You may not use this file except in | |
9 | * compliance with the License. The rights granted to you under the License | |
10 | * may not be used to create, or enable the creation or redistribution of, | |
11 | * unlawful or unlicensed copies of an Apple operating system, or to | |
12 | * circumvent, violate, or enable the circumvention or violation of, any | |
13 | * terms of an Apple operating system software license agreement. | |
14 | * | |
15 | * Please obtain a copy of the License at | |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
17 | * | |
18 | * The Original Code and all software distributed under the License are | |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
23 | * Please see the License for the specific language governing rights and | |
24 | * limitations under the License. | |
25 | * | |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ | |
27 | */ | |
28 | /* | |
29 | * @OSF_COPYRIGHT@ | |
30 | */ | |
31 | /* | |
32 | * Mach Operating System | |
33 | * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University | |
34 | * All Rights Reserved. | |
35 | * | |
36 | * Permission to use, copy, modify and distribute this software and its | |
37 | * documentation is hereby granted, provided that both the copyright | |
38 | * notice and this permission notice appear in all copies of the | |
39 | * software, derivative works or modified versions, and any portions | |
40 | * thereof, and that both notices appear in supporting documentation. | |
41 | * | |
42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" | |
43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR | |
44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. | |
45 | * | |
46 | * Carnegie Mellon requests users of this software to return to | |
47 | * | |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU | |
49 | * School of Computer Science | |
50 | * Carnegie Mellon University | |
51 | * Pittsburgh PA 15213-3890 | |
52 | * | |
53 | * any improvements or extensions that they make and grant Carnegie Mellon | |
54 | * the rights to redistribute these changes. | |
55 | */ | |
56 | ||
57 | #ifdef KERNEL_PRIVATE | |
58 | ||
59 | #ifndef _ARM_SIMPLE_LOCK_TYPES_H_ | |
60 | #define _ARM_SIMPLE_LOCK_TYPES_H_ | |
61 | ||
62 | #include <kern/lock_group.h> | |
63 | ||
64 | #ifdef KERNEL_PRIVATE | |
65 | #include <mach/boolean.h> | |
66 | #include <kern/kern_types.h> | |
67 | #include <sys/appleapiopts.h> | |
68 | #ifdef MACH_KERNEL_PRIVATE | |
69 | #include <arm/hw_lock_types.h> | |
70 | #include <arm/locks.h> | |
71 | #include <mach_ldebug.h> | |
72 | #endif | |
73 | ||
74 | #ifdef MACH_KERNEL_PRIVATE | |
75 | ||
76 | extern uint32_t LockTimeOut; /* Number of hardware ticks of a lock timeout */ | |
77 | extern uint32_t LockTimeOutUsec; /* Number of microseconds for lock timeout */ | |
78 | ||
79 | typedef lck_spin_t usimple_lock_data_t, *usimple_lock_t; | |
80 | #else /* MACH_KERNEL_PRIVATE */ | |
81 | ||
82 | #if defined(__arm__) | |
83 | typedef struct slock { | |
84 | unsigned int lock_data[10]; | |
85 | } usimple_lock_data_t, *usimple_lock_t; | |
86 | #elif defined(__arm64__) | |
87 | /* | |
88 | * ARM64_TODO: this is quite a waste of space (and a | |
89 | * poorly packed data structure). See if anyone's | |
90 | * using these outside of osfmk. | |
91 | * NOTE: only osfmk uses this structure in xnu-2624 | |
92 | */ | |
93 | typedef struct slock { | |
94 | uint64_t lock_data[9]; | |
95 | } usimple_lock_data_t, *usimple_lock_t; | |
96 | #else | |
97 | #error Unknown architecture. | |
98 | #endif | |
99 | ||
100 | #endif /* MACH_KERNEL_PRIVATE */ | |
101 | ||
102 | #define USIMPLE_LOCK_NULL ((usimple_lock_t) 0) | |
103 | ||
104 | #if !defined(decl_simple_lock_data) | |
105 | ||
106 | typedef usimple_lock_data_t *simple_lock_t; | |
107 | typedef usimple_lock_data_t simple_lock_data_t; | |
108 | ||
109 | #define decl_simple_lock_data(class, name) \ | |
110 | class simple_lock_data_t name | |
111 | ||
112 | #endif /* !defined(decl_simple_lock_data) */ | |
113 | ||
114 | #ifdef MACH_KERNEL_PRIVATE | |
115 | ||
116 | #define MACHINE_SIMPLE_LOCK | |
117 | ||
118 | extern void arm_usimple_lock_init(simple_lock_t, __unused unsigned short); | |
119 | ||
120 | #define simple_lock_init(l, t) arm_usimple_lock_init(l,t) | |
121 | ||
122 | #if LOCK_STATS | |
123 | #define simple_lock(l, grp) lck_spin_lock_grp(l, grp) | |
124 | #define simple_lock_nopreempt(l, grp) lck_spin_lock_nopreempt_grp(l, grp) | |
125 | #define simple_lock_try(l, grp) lck_spin_try_lock_grp(l, grp) | |
126 | #define simple_lock_try_nopreempt(l, grp) lck_spin_try_lock_nopreempt_grp(l, grp) | |
127 | #else | |
128 | #define simple_lock(l, grp) lck_spin_lock(l) | |
129 | #define simple_lock_nopreempt(l, grp) lck_spin_lock_nopreempt(l) | |
130 | #define simple_lock_try(l, grp) lck_spin_try_lock(l) | |
131 | #define simple_lock_try_nopreempt(l, grp) lck_spin_try_lock_nopreempt(l) | |
132 | ||
133 | ||
134 | #endif /* LOCK_STATS */ | |
135 | #define simple_unlock(l) lck_spin_unlock(l) | |
136 | #define simple_unlock_nopreempt(l) lck_spin_unlock_nopreempt(l) | |
137 | ||
138 | #define simple_lock_try_lock_loop(l, grp) simple_lock(l, grp) | |
139 | ||
140 | #define simple_lock_addr(l) (&(l)) | |
141 | #define simple_lock_assert(l, t) lck_spin_assert(l,t) | |
142 | #define kdp_simple_lock_is_acquired(l) kdp_lck_spin_is_acquired(l) | |
143 | ||
144 | #endif /* MACH_KERNEL_PRIVATE */ | |
145 | #endif /* KERNEL_PRIVATE */ | |
146 | ||
147 | #endif /* !_ARM_SIMPLE_LOCK_TYPES_H_ */ | |
148 | ||
149 | #endif /* KERNEL_PRIVATE */ |