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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
e0c437bc | 3 | * Name: aclinux.h - OS specific defines, etc. for Linux |
1da177e4 LT |
4 | * |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
25f044e6 | 8 | * Copyright (C) 2000 - 2013, Intel Corp. |
1da177e4 LT |
9 | * All rights reserved. |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * substantially similar to the "NO WARRANTY" disclaimer below | |
19 | * ("Disclaimer") and any redistribution must be conditioned upon | |
20 | * including a substantially similar Disclaimer requirement for further | |
21 | * binary redistribution. | |
22 | * 3. Neither the names of the above-listed copyright holders nor the names | |
23 | * of any contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * Alternatively, this software may be distributed under the terms of the | |
27 | * GNU General Public License ("GPL") version 2 as published by the Free | |
28 | * Software Foundation. | |
29 | * | |
30 | * NO WARRANTY | |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
41 | * POSSIBILITY OF SUCH DAMAGES. | |
42 | */ | |
43 | ||
44 | #ifndef __ACLINUX_H__ | |
45 | #define __ACLINUX_H__ | |
46 | ||
e0c437bc BM |
47 | /* Common (in-kernel/user-space) ACPICA configuration */ |
48 | ||
1da177e4 LT |
49 | #define ACPI_USE_SYSTEM_CLIBRARY |
50 | #define ACPI_USE_DO_WHILE_0 | |
1685bd40 | 51 | #define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE |
1da177e4 | 52 | |
e0c437bc | 53 | |
1da177e4 LT |
54 | #ifdef __KERNEL__ |
55 | ||
1da177e4 LT |
56 | #include <linux/string.h> |
57 | #include <linux/kernel.h> | |
58 | #include <linux/ctype.h> | |
8bd108d1 | 59 | #include <linux/sched.h> |
60063497 | 60 | #include <linux/atomic.h> |
1da177e4 LT |
61 | #include <asm/div64.h> |
62 | #include <asm/acpi.h> | |
8313524a | 63 | #include <linux/slab.h> |
967440e3 | 64 | #include <linux/spinlock_types.h> |
ab8aa06a | 65 | #include <asm/current.h> |
1da177e4 | 66 | |
e0c437bc | 67 | /* Host-dependent types and defines for in-kernel ACPICA */ |
1da177e4 | 68 | |
8313524a | 69 | #define ACPI_MACHINE_WIDTH BITS_PER_LONG |
8313524a BM |
70 | #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); |
71 | #define strtoul simple_strtoul | |
73459f73 | 72 | |
e0c437bc BM |
73 | #define acpi_cache_t struct kmem_cache |
74 | #define acpi_spinlock spinlock_t * | |
75 | #define acpi_cpu_flags unsigned long | |
e0c437bc BM |
76 | |
77 | #else /* !__KERNEL__ */ | |
1da177e4 LT |
78 | |
79 | #include <stdarg.h> | |
80 | #include <string.h> | |
81 | #include <stdlib.h> | |
82 | #include <ctype.h> | |
83 | #include <unistd.h> | |
84 | ||
e0c437bc BM |
85 | /* Host-dependent types and defines for user-space ACPICA */ |
86 | ||
87 | #define ACPI_FLUSH_CPU_CACHE() | |
28eb3fcf | 88 | #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread)) |
e0c437bc | 89 | |
30095207 | 90 | #if defined(__ia64__) || defined(__x86_64__) || defined(__aarch64__) |
1da177e4 LT |
91 | #define ACPI_MACHINE_WIDTH 64 |
92 | #define COMPILER_DEPENDENT_INT64 long | |
93 | #define COMPILER_DEPENDENT_UINT64 unsigned long | |
94 | #else | |
95 | #define ACPI_MACHINE_WIDTH 32 | |
96 | #define COMPILER_DEPENDENT_INT64 long long | |
97 | #define COMPILER_DEPENDENT_UINT64 unsigned long long | |
98 | #define ACPI_USE_NATIVE_DIVIDE | |
99 | #endif | |
100 | ||
a0a3f6c6 | 101 | #ifndef __cdecl |
1da177e4 | 102 | #define __cdecl |
a0a3f6c6 BM |
103 | #endif |
104 | ||
e0c437bc | 105 | #endif /* __KERNEL__ */ |
1da177e4 LT |
106 | |
107 | /* Linux uses GCC */ | |
108 | ||
a1ce3928 | 109 | #include <acpi/platform/acgcc.h> |
1da177e4 | 110 | |
e0c437bc | 111 | #ifdef __KERNEL__ |
28eb3fcf | 112 | #include <acpi/actypes.h> |
e0c437bc BM |
113 | /* |
114 | * Overrides for in-kernel ACPICA | |
115 | */ | |
fd350943 LB |
116 | static inline acpi_thread_id acpi_os_get_thread_id(void) |
117 | { | |
28eb3fcf | 118 | return (acpi_thread_id)(unsigned long)current; |
fd350943 | 119 | } |
ec7381d6 | 120 | |
e21c1ca3 LB |
121 | /* |
122 | * The irqs_disabled() check is for resume from RAM. | |
123 | * Interrupts are off during resume, just like they are for boot. | |
124 | * However, boot has (system_state != SYSTEM_RUNNING) | |
125 | * to quiet __might_sleep() in kmalloc() and resume does not. | |
126 | */ | |
fd350943 LB |
127 | static inline void *acpi_os_allocate(acpi_size size) |
128 | { | |
e0c437bc | 129 | return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); |
e21c1ca3 | 130 | } |
e0c437bc | 131 | |
fd350943 LB |
132 | static inline void *acpi_os_allocate_zeroed(acpi_size size) |
133 | { | |
e0c437bc | 134 | return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); |
e21c1ca3 LB |
135 | } |
136 | ||
fd350943 LB |
137 | static inline void *acpi_os_acquire_object(acpi_cache_t * cache) |
138 | { | |
139 | return kmem_cache_zalloc(cache, | |
e0c437bc | 140 | irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL); |
e21c1ca3 LB |
141 | } |
142 | ||
e0c437bc BM |
143 | #define ACPI_ALLOCATE(a) acpi_os_allocate(a) |
144 | #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a) | |
145 | #define ACPI_FREE(a) kfree(a) | |
e21c1ca3 | 146 | |
0a7992c9 TG |
147 | #ifndef CONFIG_PREEMPT |
148 | /* | |
149 | * Used within ACPICA to show where it is safe to preempt execution | |
150 | * when CONFIG_PREEMPT=n | |
151 | */ | |
e0c437bc BM |
152 | #define ACPI_PREEMPTION_POINT() \ |
153 | do { \ | |
0a7992c9 | 154 | if (!irqs_disabled()) \ |
e0c437bc | 155 | cond_resched(); \ |
abe1dfab | 156 | } while (0) |
0a7992c9 | 157 | #endif |
8bd108d1 | 158 | |
07e49a7a RW |
159 | /* |
160 | * When lockdep is enabled, the spin_lock_init() macro stringifies it's | |
161 | * argument and uses that as a name for the lock in debugging. | |
162 | * By executing spin_lock_init() in a macro the key changes from "lock" for | |
163 | * all locks to the name of the argument of acpi_os_create_lock(), which | |
164 | * prevents lockdep from reporting false positives for ACPICA locks. | |
165 | */ | |
166 | #define acpi_os_create_lock(__handle) \ | |
167 | ({ \ | |
168 | spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ | |
169 | \ | |
170 | if (lock) { \ | |
171 | *(__handle) = lock; \ | |
172 | spin_lock_init(*(__handle)); \ | |
173 | } \ | |
174 | lock ? AE_OK : AE_NO_MEMORY; \ | |
175 | }) | |
176 | ||
e0c437bc BM |
177 | #endif /* __KERNEL__ */ |
178 | ||
179 | #endif /* __ACLINUX_H__ */ |