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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: utxface - External interfaces for "global" ACPI functions | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
75a44ce0 | 8 | * Copyright (C) 2000 - 2008, 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 LT |
44 | #include <acpi/acpi.h> |
45 | #include <acpi/acevents.h> | |
46 | #include <acpi/acnamesp.h> | |
1da177e4 LT |
47 | #include <acpi/acdebug.h> |
48 | ||
49 | #define _COMPONENT ACPI_UTILITIES | |
4be44fcd | 50 | ACPI_MODULE_NAME("utxface") |
1da177e4 | 51 | |
e20a679b | 52 | #ifndef ACPI_ASL_COMPILER |
1da177e4 LT |
53 | /******************************************************************************* |
54 | * | |
55 | * FUNCTION: acpi_initialize_subsystem | |
56 | * | |
57 | * PARAMETERS: None | |
58 | * | |
59 | * RETURN: Status | |
60 | * | |
61 | * DESCRIPTION: Initializes all global variables. This is the first function | |
62 | * called, so any early initialization belongs here. | |
63 | * | |
64 | ******************************************************************************/ | |
dd272b57 | 65 | acpi_status __init acpi_initialize_subsystem(void) |
1da177e4 | 66 | { |
4be44fcd | 67 | acpi_status status; |
44f6c012 | 68 | |
b229cf92 | 69 | ACPI_FUNCTION_TRACE(acpi_initialize_subsystem); |
1da177e4 | 70 | |
cb219bb6 | 71 | acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE; |
4be44fcd | 72 | ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace()); |
1da177e4 | 73 | |
1da177e4 LT |
74 | /* Initialize the OS-Dependent layer */ |
75 | ||
4be44fcd LB |
76 | status = acpi_os_initialize(); |
77 | if (ACPI_FAILURE(status)) { | |
b8e4d893 | 78 | ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization")); |
4be44fcd | 79 | return_ACPI_STATUS(status); |
1da177e4 LT |
80 | } |
81 | ||
73459f73 RM |
82 | /* Initialize all globals used by the subsystem */ |
83 | ||
b417d40b YY |
84 | status = acpi_ut_init_globals(); |
85 | if (ACPI_FAILURE(status)) { | |
86 | ACPI_EXCEPTION((AE_INFO, status, | |
87 | "During initialization of globals")); | |
88 | return_ACPI_STATUS(status); | |
89 | } | |
73459f73 | 90 | |
1da177e4 LT |
91 | /* Create the default mutex objects */ |
92 | ||
4be44fcd LB |
93 | status = acpi_ut_mutex_initialize(); |
94 | if (ACPI_FAILURE(status)) { | |
b8e4d893 BM |
95 | ACPI_EXCEPTION((AE_INFO, status, |
96 | "During Global Mutex creation")); | |
4be44fcd | 97 | return_ACPI_STATUS(status); |
1da177e4 LT |
98 | } |
99 | ||
100 | /* | |
101 | * Initialize the namespace manager and | |
102 | * the root of the namespace tree | |
103 | */ | |
4be44fcd LB |
104 | status = acpi_ns_root_initialize(); |
105 | if (ACPI_FAILURE(status)) { | |
b8e4d893 BM |
106 | ACPI_EXCEPTION((AE_INFO, status, |
107 | "During Namespace initialization")); | |
4be44fcd | 108 | return_ACPI_STATUS(status); |
1da177e4 LT |
109 | } |
110 | ||
1da177e4 LT |
111 | /* If configured, initialize the AML debugger */ |
112 | ||
4be44fcd | 113 | ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); |
4be44fcd | 114 | return_ACPI_STATUS(status); |
1da177e4 LT |
115 | } |
116 | ||
1da177e4 LT |
117 | /******************************************************************************* |
118 | * | |
119 | * FUNCTION: acpi_enable_subsystem | |
120 | * | |
121 | * PARAMETERS: Flags - Init/enable Options | |
122 | * | |
123 | * RETURN: Status | |
124 | * | |
125 | * DESCRIPTION: Completes the subsystem initialization including hardware. | |
126 | * Puts system into ACPI mode if it isn't already. | |
127 | * | |
128 | ******************************************************************************/ | |
4be44fcd | 129 | acpi_status acpi_enable_subsystem(u32 flags) |
1da177e4 | 130 | { |
4be44fcd | 131 | acpi_status status = AE_OK; |
1da177e4 | 132 | |
b229cf92 | 133 | ACPI_FUNCTION_TRACE(acpi_enable_subsystem); |
1da177e4 | 134 | |
1da177e4 LT |
135 | /* Enable ACPI mode */ |
136 | ||
137 | if (!(flags & ACPI_NO_ACPI_ENABLE)) { | |
4be44fcd LB |
138 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
139 | "[Init] Going into ACPI mode\n")); | |
1da177e4 LT |
140 | |
141 | acpi_gbl_original_mode = acpi_hw_get_mode(); | |
142 | ||
4be44fcd LB |
143 | status = acpi_enable(); |
144 | if (ACPI_FAILURE(status)) { | |
b229cf92 | 145 | ACPI_WARNING((AE_INFO, "AcpiEnable failed")); |
4be44fcd | 146 | return_ACPI_STATUS(status); |
1da177e4 LT |
147 | } |
148 | } | |
149 | ||
150 | /* | |
151 | * Install the default op_region handlers. These are installed unless | |
152 | * other handlers have already been installed via the | |
153 | * install_address_space_handler interface. | |
154 | */ | |
155 | if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { | |
4be44fcd LB |
156 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
157 | "[Init] Installing default address space handlers\n")); | |
1da177e4 | 158 | |
4be44fcd LB |
159 | status = acpi_ev_install_region_handlers(); |
160 | if (ACPI_FAILURE(status)) { | |
161 | return_ACPI_STATUS(status); | |
1da177e4 LT |
162 | } |
163 | } | |
164 | ||
165 | /* | |
166 | * Initialize ACPI Event handling (Fixed and General Purpose) | |
167 | * | |
96db255c BM |
168 | * Note1: We must have the hardware and events initialized before we can |
169 | * execute any control methods safely. Any control method can require | |
170 | * ACPI hardware support, so the hardware must be fully initialized before | |
171 | * any method execution! | |
172 | * | |
173 | * Note2: Fixed events are initialized and enabled here. GPEs are | |
174 | * initialized, but cannot be enabled until after the hardware is | |
175 | * completely initialized (SCI and global_lock activated) | |
1da177e4 LT |
176 | */ |
177 | if (!(flags & ACPI_NO_EVENT_INIT)) { | |
4be44fcd LB |
178 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
179 | "[Init] Initializing ACPI events\n")); | |
1da177e4 | 180 | |
4be44fcd LB |
181 | status = acpi_ev_initialize_events(); |
182 | if (ACPI_FAILURE(status)) { | |
183 | return_ACPI_STATUS(status); | |
1da177e4 LT |
184 | } |
185 | } | |
186 | ||
96db255c BM |
187 | /* |
188 | * Install the SCI handler and Global Lock handler. This completes the | |
189 | * hardware initialization. | |
190 | */ | |
1da177e4 | 191 | if (!(flags & ACPI_NO_HANDLER_INIT)) { |
4be44fcd LB |
192 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
193 | "[Init] Installing SCI/GL handlers\n")); | |
1da177e4 | 194 | |
4be44fcd LB |
195 | status = acpi_ev_install_xrupt_handlers(); |
196 | if (ACPI_FAILURE(status)) { | |
197 | return_ACPI_STATUS(status); | |
1da177e4 LT |
198 | } |
199 | } | |
200 | ||
4be44fcd | 201 | return_ACPI_STATUS(status); |
1da177e4 LT |
202 | } |
203 | ||
8313524a BM |
204 | ACPI_EXPORT_SYMBOL(acpi_enable_subsystem) |
205 | ||
1da177e4 LT |
206 | /******************************************************************************* |
207 | * | |
208 | * FUNCTION: acpi_initialize_objects | |
209 | * | |
210 | * PARAMETERS: Flags - Init/enable Options | |
211 | * | |
212 | * RETURN: Status | |
213 | * | |
214 | * DESCRIPTION: Completes namespace initialization by initializing device | |
215 | * objects and executing AML code for Regions, buffers, etc. | |
216 | * | |
217 | ******************************************************************************/ | |
4be44fcd | 218 | acpi_status acpi_initialize_objects(u32 flags) |
1da177e4 | 219 | { |
4be44fcd | 220 | acpi_status status = AE_OK; |
1da177e4 | 221 | |
b229cf92 | 222 | ACPI_FUNCTION_TRACE(acpi_initialize_objects); |
1da177e4 LT |
223 | |
224 | /* | |
225 | * Run all _REG methods | |
226 | * | |
96db255c BM |
227 | * Note: Any objects accessed by the _REG methods will be automatically |
228 | * initialized, even if they contain executable AML (see the call to | |
229 | * acpi_ns_initialize_objects below). | |
1da177e4 LT |
230 | */ |
231 | if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { | |
4be44fcd | 232 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
b229cf92 | 233 | "[Init] Executing _REG OpRegion methods\n")); |
1da177e4 | 234 | |
4be44fcd LB |
235 | status = acpi_ev_initialize_op_regions(); |
236 | if (ACPI_FAILURE(status)) { | |
237 | return_ACPI_STATUS(status); | |
1da177e4 LT |
238 | } |
239 | } | |
240 | ||
241 | /* | |
96db255c BM |
242 | * Initialize the objects that remain uninitialized. This runs the |
243 | * executable AML that may be part of the declaration of these objects: | |
244 | * operation_regions, buffer_fields, Buffers, and Packages. | |
1da177e4 LT |
245 | */ |
246 | if (!(flags & ACPI_NO_OBJECT_INIT)) { | |
4be44fcd LB |
247 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
248 | "[Init] Completing Initialization of ACPI Objects\n")); | |
1da177e4 | 249 | |
4be44fcd LB |
250 | status = acpi_ns_initialize_objects(); |
251 | if (ACPI_FAILURE(status)) { | |
252 | return_ACPI_STATUS(status); | |
1da177e4 LT |
253 | } |
254 | } | |
255 | ||
256 | /* | |
96db255c BM |
257 | * Initialize all device objects in the namespace. This runs the device |
258 | * _STA and _INI methods. | |
1da177e4 LT |
259 | */ |
260 | if (!(flags & ACPI_NO_DEVICE_INIT)) { | |
4be44fcd LB |
261 | ACPI_DEBUG_PRINT((ACPI_DB_EXEC, |
262 | "[Init] Initializing ACPI Devices\n")); | |
1da177e4 | 263 | |
4be44fcd LB |
264 | status = acpi_ns_initialize_devices(); |
265 | if (ACPI_FAILURE(status)) { | |
266 | return_ACPI_STATUS(status); | |
1da177e4 LT |
267 | } |
268 | } | |
269 | ||
20447027 AS |
270 | /* |
271 | * Complete the GPE initialization for the GPE blocks defined in the FADT | |
272 | * (GPE block 0 and 1). | |
273 | * | |
274 | * Note1: This is where the _PRW methods are executed for the GPEs. These | |
275 | * methods can only be executed after the SCI and Global Lock handlers are | |
276 | * installed and initialized. | |
277 | * | |
278 | * Note2: Currently, there seems to be no need to run the _REG methods | |
279 | * before execution of the _PRW methods and enabling of the GPEs. | |
280 | */ | |
281 | if (!(flags & ACPI_NO_EVENT_INIT)) { | |
282 | status = acpi_ev_install_fadt_gpes(); | |
283 | if (ACPI_FAILURE(status)) | |
284 | return (status); | |
285 | } | |
286 | ||
1da177e4 LT |
287 | /* |
288 | * Empty the caches (delete the cached objects) on the assumption that | |
289 | * the table load filled them up more than they will be at runtime -- | |
290 | * thus wasting non-paged memory. | |
291 | */ | |
4be44fcd | 292 | status = acpi_purge_cached_objects(); |
1da177e4 LT |
293 | |
294 | acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK; | |
4be44fcd | 295 | return_ACPI_STATUS(status); |
1da177e4 LT |
296 | } |
297 | ||
8313524a BM |
298 | ACPI_EXPORT_SYMBOL(acpi_initialize_objects) |
299 | ||
e20a679b | 300 | #endif |
1da177e4 LT |
301 | /******************************************************************************* |
302 | * | |
303 | * FUNCTION: acpi_terminate | |
304 | * | |
305 | * PARAMETERS: None | |
306 | * | |
307 | * RETURN: Status | |
308 | * | |
309 | * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources. | |
310 | * | |
311 | ******************************************************************************/ | |
4be44fcd | 312 | acpi_status acpi_terminate(void) |
1da177e4 | 313 | { |
4be44fcd | 314 | acpi_status status; |
1da177e4 | 315 | |
b229cf92 | 316 | ACPI_FUNCTION_TRACE(acpi_terminate); |
1da177e4 LT |
317 | |
318 | /* Terminate the AML Debugger if present */ | |
319 | ||
320 | ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); | |
321 | ||
322 | /* Shutdown and free all resources */ | |
323 | ||
4be44fcd | 324 | acpi_ut_subsystem_shutdown(); |
1da177e4 LT |
325 | |
326 | /* Free the mutex objects */ | |
327 | ||
4be44fcd | 328 | acpi_ut_mutex_terminate(); |
1da177e4 LT |
329 | |
330 | #ifdef ACPI_DEBUGGER | |
331 | ||
332 | /* Shut down the debugger */ | |
333 | ||
4be44fcd | 334 | acpi_db_terminate(); |
1da177e4 LT |
335 | #endif |
336 | ||
337 | /* Now we can shutdown the OS-dependent layer */ | |
338 | ||
4be44fcd LB |
339 | status = acpi_os_terminate(); |
340 | return_ACPI_STATUS(status); | |
1da177e4 LT |
341 | } |
342 | ||
8313524a | 343 | ACPI_EXPORT_SYMBOL(acpi_terminate) |
e20a679b | 344 | #ifndef ACPI_ASL_COMPILER |
1da177e4 | 345 | #ifdef ACPI_FUTURE_USAGE |
44f6c012 | 346 | /******************************************************************************* |
1da177e4 LT |
347 | * |
348 | * FUNCTION: acpi_subsystem_status | |
349 | * | |
350 | * PARAMETERS: None | |
351 | * | |
352 | * RETURN: Status of the ACPI subsystem | |
353 | * | |
354 | * DESCRIPTION: Other drivers that use the ACPI subsystem should call this | |
44f6c012 RM |
355 | * before making any other calls, to ensure the subsystem |
356 | * initialized successfully. | |
1da177e4 | 357 | * |
44f6c012 | 358 | ******************************************************************************/ |
4be44fcd | 359 | acpi_status acpi_subsystem_status(void) |
1da177e4 | 360 | { |
44f6c012 | 361 | |
1da177e4 LT |
362 | if (acpi_gbl_startup_flags & ACPI_INITIALIZED_OK) { |
363 | return (AE_OK); | |
4be44fcd | 364 | } else { |
1da177e4 LT |
365 | return (AE_ERROR); |
366 | } | |
367 | } | |
368 | ||
8313524a BM |
369 | ACPI_EXPORT_SYMBOL(acpi_subsystem_status) |
370 | ||
44f6c012 | 371 | /******************************************************************************* |
1da177e4 LT |
372 | * |
373 | * FUNCTION: acpi_get_system_info | |
374 | * | |
44f6c012 RM |
375 | * PARAMETERS: out_buffer - A buffer to receive the resources for the |
376 | * device | |
1da177e4 LT |
377 | * |
378 | * RETURN: Status - the status of the call | |
379 | * | |
380 | * DESCRIPTION: This function is called to get information about the current | |
381 | * state of the ACPI subsystem. It will return system information | |
382 | * in the out_buffer. | |
383 | * | |
384 | * If the function fails an appropriate status will be returned | |
385 | * and the value of out_buffer is undefined. | |
386 | * | |
387 | ******************************************************************************/ | |
4be44fcd | 388 | acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) |
1da177e4 | 389 | { |
4be44fcd LB |
390 | struct acpi_system_info *info_ptr; |
391 | acpi_status status; | |
1da177e4 | 392 | |
b229cf92 | 393 | ACPI_FUNCTION_TRACE(acpi_get_system_info); |
1da177e4 LT |
394 | |
395 | /* Parameter validation */ | |
396 | ||
4be44fcd LB |
397 | status = acpi_ut_validate_buffer(out_buffer); |
398 | if (ACPI_FAILURE(status)) { | |
399 | return_ACPI_STATUS(status); | |
1da177e4 LT |
400 | } |
401 | ||
402 | /* Validate/Allocate/Clear caller buffer */ | |
403 | ||
4be44fcd LB |
404 | status = |
405 | acpi_ut_initialize_buffer(out_buffer, | |
406 | sizeof(struct acpi_system_info)); | |
407 | if (ACPI_FAILURE(status)) { | |
408 | return_ACPI_STATUS(status); | |
1da177e4 LT |
409 | } |
410 | ||
411 | /* | |
412 | * Populate the return buffer | |
413 | */ | |
4be44fcd | 414 | info_ptr = (struct acpi_system_info *)out_buffer->pointer; |
1da177e4 | 415 | |
4be44fcd | 416 | info_ptr->acpi_ca_version = ACPI_CA_VERSION; |
1da177e4 LT |
417 | |
418 | /* System flags (ACPI capabilities) */ | |
419 | ||
4be44fcd | 420 | info_ptr->flags = ACPI_SYS_MODE_ACPI; |
1da177e4 LT |
421 | |
422 | /* Timer resolution - 24 or 32 bits */ | |
423 | ||
f3d2e786 | 424 | if (acpi_gbl_FADT.flags & ACPI_FADT_32BIT_TIMER) { |
1da177e4 | 425 | info_ptr->timer_resolution = 24; |
4be44fcd | 426 | } else { |
1da177e4 LT |
427 | info_ptr->timer_resolution = 32; |
428 | } | |
429 | ||
430 | /* Clear the reserved fields */ | |
431 | ||
4be44fcd LB |
432 | info_ptr->reserved1 = 0; |
433 | info_ptr->reserved2 = 0; | |
1da177e4 LT |
434 | |
435 | /* Current debug levels */ | |
436 | ||
4be44fcd LB |
437 | info_ptr->debug_layer = acpi_dbg_layer; |
438 | info_ptr->debug_level = acpi_dbg_level; | |
1da177e4 | 439 | |
4be44fcd | 440 | return_ACPI_STATUS(AE_OK); |
1da177e4 | 441 | } |
1da177e4 | 442 | |
8313524a | 443 | ACPI_EXPORT_SYMBOL(acpi_get_system_info) |
1da177e4 LT |
444 | |
445 | /***************************************************************************** | |
446 | * | |
447 | * FUNCTION: acpi_install_initialization_handler | |
448 | * | |
449 | * PARAMETERS: Handler - Callback procedure | |
44f6c012 | 450 | * Function - Not (currently) used, see below |
1da177e4 LT |
451 | * |
452 | * RETURN: Status | |
453 | * | |
454 | * DESCRIPTION: Install an initialization handler | |
455 | * | |
456 | * TBD: When a second function is added, must save the Function also. | |
457 | * | |
458 | ****************************************************************************/ | |
1da177e4 | 459 | acpi_status |
4be44fcd | 460 | acpi_install_initialization_handler(acpi_init_handler handler, u32 function) |
1da177e4 LT |
461 | { |
462 | ||
463 | if (!handler) { | |
464 | return (AE_BAD_PARAMETER); | |
465 | } | |
466 | ||
467 | if (acpi_gbl_init_handler) { | |
468 | return (AE_ALREADY_EXISTS); | |
469 | } | |
470 | ||
471 | acpi_gbl_init_handler = handler; | |
472 | return AE_OK; | |
473 | } | |
474 | ||
8313524a | 475 | ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) |
4be44fcd | 476 | #endif /* ACPI_FUTURE_USAGE */ |
1da177e4 LT |
477 | /***************************************************************************** |
478 | * | |
479 | * FUNCTION: acpi_purge_cached_objects | |
480 | * | |
481 | * PARAMETERS: None | |
482 | * | |
483 | * RETURN: Status | |
484 | * | |
485 | * DESCRIPTION: Empty all caches (delete the cached objects) | |
486 | * | |
487 | ****************************************************************************/ | |
4be44fcd | 488 | acpi_status acpi_purge_cached_objects(void) |
1da177e4 | 489 | { |
b229cf92 | 490 | ACPI_FUNCTION_TRACE(acpi_purge_cached_objects); |
1da177e4 | 491 | |
4be44fcd LB |
492 | (void)acpi_os_purge_cache(acpi_gbl_state_cache); |
493 | (void)acpi_os_purge_cache(acpi_gbl_operand_cache); | |
494 | (void)acpi_os_purge_cache(acpi_gbl_ps_node_cache); | |
495 | (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache); | |
496 | return_ACPI_STATUS(AE_OK); | |
1da177e4 | 497 | } |
8313524a BM |
498 | |
499 | ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) | |
e20a679b | 500 | #endif |