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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: utinit - Common ACPI subsystem initialization | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
c8100dc4 | 8 | * Copyright (C) 2000 - 2016, 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 | ||
1da177e4 | 44 | #include <acpi/acpi.h> |
e2f7a777 LB |
45 | #include "accommon.h" |
46 | #include "acnamesp.h" | |
47 | #include "acevents.h" | |
48 | #include "actables.h" | |
1da177e4 LT |
49 | |
50 | #define _COMPONENT ACPI_UTILITIES | |
4be44fcd | 51 | ACPI_MODULE_NAME("utinit") |
1da177e4 | 52 | |
44f6c012 | 53 | /* Local prototypes */ |
4be44fcd | 54 | static void acpi_ut_terminate(void); |
1da177e4 | 55 | |
33620c54 BM |
56 | #if (!ACPI_REDUCED_HARDWARE) |
57 | ||
58 | static void acpi_ut_free_gpe_lists(void); | |
59 | ||
60 | #else | |
61 | ||
62 | #define acpi_ut_free_gpe_lists() | |
63 | #endif /* !ACPI_REDUCED_HARDWARE */ | |
64 | ||
65 | #if (!ACPI_REDUCED_HARDWARE) | |
1da177e4 LT |
66 | /****************************************************************************** |
67 | * | |
33620c54 | 68 | * FUNCTION: acpi_ut_free_gpe_lists |
1da177e4 LT |
69 | * |
70 | * PARAMETERS: none | |
71 | * | |
72 | * RETURN: none | |
73 | * | |
33620c54 | 74 | * DESCRIPTION: Free global GPE lists |
1da177e4 LT |
75 | * |
76 | ******************************************************************************/ | |
77 | ||
33620c54 | 78 | static void acpi_ut_free_gpe_lists(void) |
1da177e4 | 79 | { |
4be44fcd LB |
80 | struct acpi_gpe_block_info *gpe_block; |
81 | struct acpi_gpe_block_info *next_gpe_block; | |
82 | struct acpi_gpe_xrupt_info *gpe_xrupt_info; | |
83 | struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; | |
1da177e4 | 84 | |
1da177e4 LT |
85 | /* Free global GPE blocks and related info structures */ |
86 | ||
87 | gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; | |
88 | while (gpe_xrupt_info) { | |
89 | gpe_block = gpe_xrupt_info->gpe_block_list_head; | |
90 | while (gpe_block) { | |
91 | next_gpe_block = gpe_block->next; | |
8313524a BM |
92 | ACPI_FREE(gpe_block->event_info); |
93 | ACPI_FREE(gpe_block->register_info); | |
94 | ACPI_FREE(gpe_block); | |
1da177e4 LT |
95 | |
96 | gpe_block = next_gpe_block; | |
97 | } | |
98 | next_gpe_xrupt_info = gpe_xrupt_info->next; | |
8313524a | 99 | ACPI_FREE(gpe_xrupt_info); |
1da177e4 LT |
100 | gpe_xrupt_info = next_gpe_xrupt_info; |
101 | } | |
33620c54 BM |
102 | } |
103 | #endif /* !ACPI_REDUCED_HARDWARE */ | |
104 | ||
e8c038a3 LZ |
105 | /******************************************************************************* |
106 | * | |
107 | * FUNCTION: acpi_ut_init_globals | |
108 | * | |
109 | * PARAMETERS: None | |
110 | * | |
111 | * RETURN: Status | |
112 | * | |
113 | * DESCRIPTION: Initialize ACPICA globals. All globals that require specific | |
114 | * initialization should be initialized here. This allows for | |
115 | * a warm restart. | |
116 | * | |
117 | ******************************************************************************/ | |
118 | ||
119 | acpi_status acpi_ut_init_globals(void) | |
120 | { | |
121 | acpi_status status; | |
122 | u32 i; | |
123 | ||
124 | ACPI_FUNCTION_TRACE(ut_init_globals); | |
125 | ||
126 | /* Create all memory caches */ | |
127 | ||
128 | status = acpi_ut_create_caches(); | |
129 | if (ACPI_FAILURE(status)) { | |
130 | return_ACPI_STATUS(status); | |
131 | } | |
132 | ||
133 | /* Address Range lists */ | |
134 | ||
135 | for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) { | |
136 | acpi_gbl_address_range_list[i] = NULL; | |
137 | } | |
138 | ||
139 | /* Mutex locked flags */ | |
140 | ||
141 | for (i = 0; i < ACPI_NUM_MUTEX; i++) { | |
142 | acpi_gbl_mutex_info[i].mutex = NULL; | |
143 | acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; | |
144 | acpi_gbl_mutex_info[i].use_count = 0; | |
145 | } | |
146 | ||
147 | for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { | |
148 | acpi_gbl_owner_id_mask[i] = 0; | |
149 | } | |
150 | ||
151 | /* Last owner_ID is never valid */ | |
152 | ||
153 | acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; | |
154 | ||
155 | /* Event counters */ | |
156 | ||
157 | acpi_method_count = 0; | |
158 | acpi_sci_count = 0; | |
159 | acpi_gpe_count = 0; | |
160 | ||
161 | for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { | |
162 | acpi_fixed_event_count[i] = 0; | |
163 | } | |
164 | ||
165 | #if (!ACPI_REDUCED_HARDWARE) | |
166 | ||
167 | /* GPE/SCI support */ | |
168 | ||
169 | acpi_gbl_all_gpes_initialized = FALSE; | |
170 | acpi_gbl_gpe_xrupt_list_head = NULL; | |
171 | acpi_gbl_gpe_fadt_blocks[0] = NULL; | |
172 | acpi_gbl_gpe_fadt_blocks[1] = NULL; | |
173 | acpi_current_gpe_count = 0; | |
174 | ||
175 | acpi_gbl_global_event_handler = NULL; | |
176 | acpi_gbl_sci_handler_list = NULL; | |
177 | ||
178 | #endif /* !ACPI_REDUCED_HARDWARE */ | |
179 | ||
180 | /* Global handlers */ | |
181 | ||
182 | acpi_gbl_global_notify[0].handler = NULL; | |
183 | acpi_gbl_global_notify[1].handler = NULL; | |
184 | acpi_gbl_exception_handler = NULL; | |
185 | acpi_gbl_init_handler = NULL; | |
186 | acpi_gbl_table_handler = NULL; | |
187 | acpi_gbl_interface_handler = NULL; | |
188 | ||
189 | /* Global Lock support */ | |
190 | ||
191 | acpi_gbl_global_lock_semaphore = NULL; | |
192 | acpi_gbl_global_lock_mutex = NULL; | |
193 | acpi_gbl_global_lock_acquired = FALSE; | |
194 | acpi_gbl_global_lock_handle = 0; | |
195 | acpi_gbl_global_lock_present = FALSE; | |
196 | ||
197 | /* Miscellaneous variables */ | |
198 | ||
199 | acpi_gbl_DSDT = NULL; | |
200 | acpi_gbl_cm_single_step = FALSE; | |
201 | acpi_gbl_shutdown = FALSE; | |
202 | acpi_gbl_ns_lookup_count = 0; | |
203 | acpi_gbl_ps_find_count = 0; | |
204 | acpi_gbl_acpi_hardware_present = TRUE; | |
205 | acpi_gbl_last_owner_id_index = 0; | |
206 | acpi_gbl_next_owner_id_offset = 0; | |
e8c038a3 | 207 | acpi_gbl_debugger_configuration = DEBUGGER_THREADING; |
e8c038a3 | 208 | acpi_gbl_osi_mutex = NULL; |
47cdf8c6 | 209 | acpi_gbl_max_loop_iterations = 0xFFFF; |
e8c038a3 LZ |
210 | |
211 | /* Hardware oriented */ | |
212 | ||
213 | acpi_gbl_events_initialized = FALSE; | |
214 | acpi_gbl_system_awake_and_running = TRUE; | |
215 | ||
216 | /* Namespace */ | |
217 | ||
218 | acpi_gbl_module_code_list = NULL; | |
219 | acpi_gbl_root_node = NULL; | |
220 | acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; | |
221 | acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; | |
222 | acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; | |
223 | acpi_gbl_root_node_struct.parent = NULL; | |
224 | acpi_gbl_root_node_struct.child = NULL; | |
225 | acpi_gbl_root_node_struct.peer = NULL; | |
226 | acpi_gbl_root_node_struct.object = NULL; | |
227 | ||
228 | #ifdef ACPI_DISASSEMBLER | |
229 | acpi_gbl_external_list = NULL; | |
230 | acpi_gbl_num_external_methods = 0; | |
231 | acpi_gbl_resolved_external_methods = 0; | |
232 | #endif | |
233 | ||
234 | #ifdef ACPI_DEBUG_OUTPUT | |
235 | acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); | |
236 | #endif | |
237 | ||
238 | #ifdef ACPI_DBG_TRACK_ALLOCATIONS | |
239 | acpi_gbl_display_final_mem_stats = FALSE; | |
240 | acpi_gbl_disable_mem_tracking = FALSE; | |
241 | #endif | |
242 | ||
e8c038a3 LZ |
243 | return_ACPI_STATUS(AE_OK); |
244 | } | |
245 | ||
33620c54 BM |
246 | /****************************************************************************** |
247 | * | |
248 | * FUNCTION: acpi_ut_terminate | |
249 | * | |
250 | * PARAMETERS: none | |
251 | * | |
252 | * RETURN: none | |
253 | * | |
254 | * DESCRIPTION: Free global memory | |
255 | * | |
256 | ******************************************************************************/ | |
257 | ||
258 | static void acpi_ut_terminate(void) | |
259 | { | |
260 | ACPI_FUNCTION_TRACE(ut_terminate); | |
1da177e4 | 261 | |
33620c54 | 262 | acpi_ut_free_gpe_lists(); |
f654c0fe | 263 | acpi_ut_delete_address_lists(); |
1da177e4 LT |
264 | return_VOID; |
265 | } | |
266 | ||
1da177e4 LT |
267 | /******************************************************************************* |
268 | * | |
269 | * FUNCTION: acpi_ut_subsystem_shutdown | |
270 | * | |
2f977b36 | 271 | * PARAMETERS: None |
1da177e4 | 272 | * |
2f977b36 | 273 | * RETURN: None |
1da177e4 | 274 | * |
2f977b36 BM |
275 | * DESCRIPTION: Shutdown the various components. Do not delete the mutex |
276 | * objects here, because the AML debugger may be still running. | |
1da177e4 LT |
277 | * |
278 | ******************************************************************************/ | |
279 | ||
4be44fcd | 280 | void acpi_ut_subsystem_shutdown(void) |
1da177e4 | 281 | { |
b229cf92 | 282 | ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); |
1da177e4 | 283 | |
086ab742 LZ |
284 | /* Just exit if subsystem is already shutdown */ |
285 | ||
286 | if (acpi_gbl_shutdown) { | |
287 | ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); | |
288 | return_VOID; | |
289 | } | |
290 | ||
291 | /* Subsystem appears active, go ahead and shut it down */ | |
292 | ||
293 | acpi_gbl_shutdown = TRUE; | |
294 | acpi_gbl_startup_flags = 0; | |
295 | ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); | |
296 | ||
e20a679b BM |
297 | #ifndef ACPI_ASL_COMPILER |
298 | ||
1da177e4 LT |
299 | /* Close the acpi_event Handling */ |
300 | ||
4be44fcd | 301 | acpi_ev_terminate(); |
b0ed7a91 LM |
302 | |
303 | /* Delete any dynamic _OSI interfaces */ | |
304 | ||
305 | acpi_ut_interface_terminate(); | |
e20a679b | 306 | #endif |
1da177e4 LT |
307 | |
308 | /* Close the Namespace */ | |
309 | ||
4be44fcd | 310 | acpi_ns_terminate(); |
1da177e4 | 311 | |
f3d2e786 BM |
312 | /* Delete the ACPI tables */ |
313 | ||
314 | acpi_tb_terminate(); | |
315 | ||
1da177e4 LT |
316 | /* Close the globals */ |
317 | ||
4be44fcd | 318 | acpi_ut_terminate(); |
1da177e4 LT |
319 | |
320 | /* Purge the local caches */ | |
321 | ||
4be44fcd | 322 | (void)acpi_ut_delete_caches(); |
1da177e4 LT |
323 | return_VOID; |
324 | } |