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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 | /* | |
fbb7a2dc | 8 | * Copyright (C) 2000 - 2014, 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 LT |
52 | |
53 | #ifdef __KERNEL__ | |
54 | ||
1da177e4 LT |
55 | #include <linux/string.h> |
56 | #include <linux/kernel.h> | |
57 | #include <linux/ctype.h> | |
8bd108d1 | 58 | #include <linux/sched.h> |
60063497 | 59 | #include <linux/atomic.h> |
93220587 | 60 | #include <linux/math64.h> |
8313524a | 61 | #include <linux/slab.h> |
967440e3 | 62 | #include <linux/spinlock_types.h> |
93220587 LZ |
63 | #ifdef EXPORT_ACPI_INTERFACES |
64 | #include <linux/export.h> | |
65 | #endif | |
66 | #include <asm/acpi.h> | |
1da177e4 | 67 | |
e0c437bc | 68 | /* Host-dependent types and defines for in-kernel ACPICA */ |
1da177e4 | 69 | |
8313524a | 70 | #define ACPI_MACHINE_WIDTH BITS_PER_LONG |
8313524a BM |
71 | #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); |
72 | #define strtoul simple_strtoul | |
73459f73 | 73 | |
e0c437bc BM |
74 | #define acpi_cache_t struct kmem_cache |
75 | #define acpi_spinlock spinlock_t * | |
76 | #define acpi_cpu_flags unsigned long | |
e0c437bc | 77 | |
839e928f | 78 | #else /* !__KERNEL__ */ |
1da177e4 LT |
79 | |
80 | #include <stdarg.h> | |
81 | #include <string.h> | |
82 | #include <stdlib.h> | |
83 | #include <ctype.h> | |
84 | #include <unistd.h> | |
85 | ||
7e66b46b LZ |
86 | /* Disable kernel specific declarators */ |
87 | ||
88 | #ifndef __init | |
89 | #define __init | |
90 | #endif | |
91 | ||
92 | #ifndef __iomem | |
93 | #define __iomem | |
94 | #endif | |
95 | ||
e0c437bc BM |
96 | /* Host-dependent types and defines for user-space ACPICA */ |
97 | ||
98 | #define ACPI_FLUSH_CPU_CACHE() | |
28eb3fcf | 99 | #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread)) |
e0c437bc | 100 | |
30095207 | 101 | #if defined(__ia64__) || defined(__x86_64__) || defined(__aarch64__) |
1da177e4 LT |
102 | #define ACPI_MACHINE_WIDTH 64 |
103 | #define COMPILER_DEPENDENT_INT64 long | |
104 | #define COMPILER_DEPENDENT_UINT64 unsigned long | |
105 | #else | |
106 | #define ACPI_MACHINE_WIDTH 32 | |
107 | #define COMPILER_DEPENDENT_INT64 long long | |
108 | #define COMPILER_DEPENDENT_UINT64 unsigned long long | |
109 | #define ACPI_USE_NATIVE_DIVIDE | |
110 | #endif | |
111 | ||
a0a3f6c6 | 112 | #ifndef __cdecl |
1da177e4 | 113 | #define __cdecl |
a0a3f6c6 BM |
114 | #endif |
115 | ||
839e928f | 116 | #endif /* __KERNEL__ */ |
1da177e4 LT |
117 | |
118 | /* Linux uses GCC */ | |
119 | ||
a1ce3928 | 120 | #include <acpi/platform/acgcc.h> |
1da177e4 | 121 | |
e0c437bc | 122 | #ifdef __KERNEL__ |
93220587 LZ |
123 | |
124 | /* | |
125 | * FIXME: Inclusion of actypes.h | |
126 | * Linux kernel need this before defining inline OSL interfaces as | |
127 | * actypes.h need to be included to find ACPICA type definitions. | |
128 | * Since from ACPICA's perspective, the actypes.h should be included after | |
129 | * acenv.h (aclinux.h), this leads to a inclusion mis-ordering issue. | |
130 | */ | |
28eb3fcf | 131 | #include <acpi/actypes.h> |
93220587 | 132 | |
e0c437bc BM |
133 | /* |
134 | * Overrides for in-kernel ACPICA | |
135 | */ | |
93220587 LZ |
136 | acpi_status __init acpi_os_initialize(void); |
137 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize | |
138 | ||
139 | acpi_status acpi_os_terminate(void); | |
140 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate | |
ec7381d6 | 141 | |
b3c86c30 LZ |
142 | /* |
143 | * Memory allocation/deallocation | |
144 | */ | |
145 | ||
e21c1ca3 LB |
146 | /* |
147 | * The irqs_disabled() check is for resume from RAM. | |
148 | * Interrupts are off during resume, just like they are for boot. | |
149 | * However, boot has (system_state != SYSTEM_RUNNING) | |
150 | * to quiet __might_sleep() in kmalloc() and resume does not. | |
151 | */ | |
fd350943 LB |
152 | static inline void *acpi_os_allocate(acpi_size size) |
153 | { | |
93220587 | 154 | return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); |
e21c1ca3 | 155 | } |
e0c437bc | 156 | |
93220587 LZ |
157 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate |
158 | ||
159 | /* Use native linux version of acpi_os_allocate_zeroed */ | |
160 | ||
fd350943 LB |
161 | static inline void *acpi_os_allocate_zeroed(acpi_size size) |
162 | { | |
93220587 LZ |
163 | return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); |
164 | } | |
165 | ||
166 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed | |
167 | #define USE_NATIVE_ALLOCATE_ZEROED | |
168 | ||
169 | static inline void acpi_os_free(void *memory) | |
170 | { | |
171 | kfree(memory); | |
e21c1ca3 LB |
172 | } |
173 | ||
93220587 LZ |
174 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free |
175 | ||
fd350943 LB |
176 | static inline void *acpi_os_acquire_object(acpi_cache_t * cache) |
177 | { | |
178 | return kmem_cache_zalloc(cache, | |
93220587 | 179 | irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); |
e21c1ca3 LB |
180 | } |
181 | ||
93220587 LZ |
182 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object |
183 | ||
184 | static inline acpi_thread_id acpi_os_get_thread_id(void) | |
b3c86c30 | 185 | { |
93220587 | 186 | return (acpi_thread_id) (unsigned long)current; |
b3c86c30 | 187 | } |
e21c1ca3 | 188 | |
93220587 LZ |
189 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id |
190 | ||
0a7992c9 | 191 | #ifndef CONFIG_PREEMPT |
93220587 | 192 | |
0a7992c9 TG |
193 | /* |
194 | * Used within ACPICA to show where it is safe to preempt execution | |
195 | * when CONFIG_PREEMPT=n | |
196 | */ | |
e0c437bc BM |
197 | #define ACPI_PREEMPTION_POINT() \ |
198 | do { \ | |
0a7992c9 | 199 | if (!irqs_disabled()) \ |
e0c437bc | 200 | cond_resched(); \ |
abe1dfab | 201 | } while (0) |
93220587 | 202 | |
0a7992c9 | 203 | #endif |
8bd108d1 | 204 | |
07e49a7a RW |
205 | /* |
206 | * When lockdep is enabled, the spin_lock_init() macro stringifies it's | |
207 | * argument and uses that as a name for the lock in debugging. | |
208 | * By executing spin_lock_init() in a macro the key changes from "lock" for | |
209 | * all locks to the name of the argument of acpi_os_create_lock(), which | |
210 | * prevents lockdep from reporting false positives for ACPICA locks. | |
211 | */ | |
93220587 LZ |
212 | #define acpi_os_create_lock(__handle) \ |
213 | ({ \ | |
214 | spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ | |
215 | if (lock) { \ | |
216 | *(__handle) = lock; \ | |
217 | spin_lock_init(*(__handle)); \ | |
218 | } \ | |
219 | lock ? AE_OK : AE_NO_MEMORY; \ | |
220 | }) | |
7e94632f | 221 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock |
07e49a7a | 222 | |
93220587 LZ |
223 | void __iomem *acpi_os_map_memory(acpi_physical_address where, acpi_size length); |
224 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory | |
225 | ||
226 | void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size); | |
227 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory | |
228 | ||
229 | /* | |
230 | * OSL interfaces used by debugger/disassembler | |
231 | */ | |
232 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable | |
233 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable | |
234 | ||
235 | /* | |
236 | * OSL interfaces used by utilities | |
237 | */ | |
238 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output | |
239 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line | |
240 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name | |
241 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index | |
242 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address | |
243 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory | |
244 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename | |
245 | #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory | |
246 | ||
247 | /* | |
248 | * OSL interfaces added by Linux | |
249 | */ | |
250 | void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size); | |
251 | ||
839e928f | 252 | #endif /* __KERNEL__ */ |
e0c437bc | 253 | |
839e928f | 254 | #endif /* __ACLINUX_H__ */ |