1 /******************************************************************************
2 *
3 * Module Name: utxface - External interfaces for "global" ACPI functions
4 *
5 *****************************************************************************/
6
7 /******************************************************************************
8 *
9 * 1. Copyright Notice
10 *
11 * Some or all of this work - Copyright (c) 1999 - 2009, Intel Corp.
12 * All rights reserved.
13 *
14 * 2. License
15 *
16 * 2.1. This is your license from Intel Corp. under its intellectual property
17 * rights. You may have additional license terms from the party that provided
18 * you this software, covering your right to use that party's intellectual
19 * property rights.
20 *
21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
22 * copy of the source code appearing in this file ("Covered Code") an
23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
24 * base code distributed originally by Intel ("Original Intel Code") to copy,
25 * make derivatives, distribute, use and display any portion of the Covered
26 * Code in any form, with the right to sublicense such rights; and
27 *
28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
29 * license (with the right to sublicense), under only those claims of Intel
30 * patents that are infringed by the Original Intel Code, to make, use, sell,
31 * offer to sell, and import the Covered Code and derivative works thereof
32 * solely to the minimum extent necessary to exercise the above copyright
33 * license, and in no event shall the patent license extend to any additions
34 * to or modifications of the Original Intel Code. No other license or right
35 * is granted directly or by implication, estoppel or otherwise;
36 *
37 * The above copyright and patent license is granted only if the following
38 * conditions are met:
39 *
40 * 3. Conditions
41 *
42 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
43 * Redistribution of source code of any substantial portion of the Covered
44 * Code or modification with rights to further distribute source must include
45 * the above Copyright Notice, the above License, this list of Conditions,
46 * and the following Disclaimer and Export Compliance provision. In addition,
47 * Licensee must cause all Covered Code to which Licensee contributes to
48 * contain a file documenting the changes Licensee made to create that Covered
49 * Code and the date of any change. Licensee must include in that file the
50 * documentation of any changes made by any predecessor Licensee. Licensee
51 * must include a prominent statement that the modification is derived,
52 * directly or indirectly, from Original Intel Code.
53 *
54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
55 * Redistribution of source code of any substantial portion of the Covered
56 * Code or modification without rights to further distribute source must
57 * include the following Disclaimer and Export Compliance provision in the
58 * documentation and/or other materials provided with distribution. In
59 * addition, Licensee may not authorize further sublicense of source of any
60 * portion of the Covered Code, and must include terms to the effect that the
61 * license from Licensee to its licensee is limited to the intellectual
62 * property embodied in the software Licensee provides to its licensee, and
63 * not to intellectual property embodied in modifications its licensee may
64 * make.
65 *
66 * 3.3. Redistribution of Executable. Redistribution in executable form of any
67 * substantial portion of the Covered Code or modification must reproduce the
68 * above Copyright Notice, and the following Disclaimer and Export Compliance
69 * provision in the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3.4. Intel retains all right, title, and interest in and to the Original
73 * Intel Code.
74 *
75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
76 * Intel shall be used in advertising or otherwise to promote the sale, use or
77 * other dealings in products derived from or relating to the Covered Code
78 * without prior written authorization from Intel.
79 *
80 * 4. Disclaimer and Export Compliance
81 *
82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
88 * PARTICULAR PURPOSE.
89 *
90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
97 * LIMITED REMEDY.
98 *
99 * 4.3. Licensee shall not export, either directly or indirectly, any of this
100 * software or system incorporating such software without first obtaining any
101 * required license or other approval from the U. S. Department of Commerce or
102 * any other agency or department of the United States Government. In the
103 * event Licensee exports any such software from the United States or
104 * re-exports any such software from a foreign destination, Licensee shall
105 * ensure that the distribution and export/re-export of the software is in
106 * compliance with all laws, regulations, orders, or other restrictions of the
107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
108 * any of its subsidiaries will export/re-export any technical data, process,
109 * software, or service, directly or indirectly, to any country for which the
110 * United States government or any agency thereof requires an export license,
111 * other governmental approval, or letter of assurance, without first obtaining
112 * such license, approval or letter.
113 *
114 *****************************************************************************/
115
116
117 #define __UTXFACE_C__
118
119 #include "acpi.h"
120 #include "accommon.h"
121 #include "acevents.h"
122 #include "acnamesp.h"
123 #include "acdebug.h"
124 #include "actables.h"
125
126 #define _COMPONENT ACPI_UTILITIES
127 ACPI_MODULE_NAME ("utxface")
128
129
130 #ifndef ACPI_ASL_COMPILER
131
132 /*******************************************************************************
133 *
134 * FUNCTION: AcpiInitializeSubsystem
135 *
136 * PARAMETERS: None
137 *
138 * RETURN: Status
139 *
140 * DESCRIPTION: Initializes all global variables. This is the first function
141 * called, so any early initialization belongs here.
142 *
143 ******************************************************************************/
144
145 ACPI_STATUS
AcpiInitializeSubsystem(void)146 AcpiInitializeSubsystem (
147 void)
148 {
149 ACPI_STATUS Status;
150
151
152 ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem);
153
154
155 AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE;
156 ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ());
157
158 /* Initialize the OS-Dependent layer */
159
160 Status = AcpiOsInitialize ();
161 if (ACPI_FAILURE (Status))
162 {
163 ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization"));
164 return_ACPI_STATUS (Status);
165 }
166
167 /* Initialize all globals used by the subsystem */
168
169 Status = AcpiUtInitGlobals ();
170 if (ACPI_FAILURE (Status))
171 {
172 ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals"));
173 return_ACPI_STATUS (Status);
174 }
175
176 /* Create the default mutex objects */
177
178 Status = AcpiUtMutexInitialize ();
179 if (ACPI_FAILURE (Status))
180 {
181 ACPI_EXCEPTION ((AE_INFO, Status, "During Global Mutex creation"));
182 return_ACPI_STATUS (Status);
183 }
184
185 /*
186 * Initialize the namespace manager and
187 * the root of the namespace tree
188 */
189 Status = AcpiNsRootInitialize ();
190 if (ACPI_FAILURE (Status))
191 {
192 ACPI_EXCEPTION ((AE_INFO, Status, "During Namespace initialization"));
193 return_ACPI_STATUS (Status);
194 }
195
196 /* If configured, initialize the AML debugger */
197
198 ACPI_DEBUGGER_EXEC (Status = AcpiDbInitialize ());
199 return_ACPI_STATUS (Status);
200 }
201
ACPI_EXPORT_SYMBOL(AcpiInitializeSubsystem)202 ACPI_EXPORT_SYMBOL (AcpiInitializeSubsystem)
203
204
205 /*******************************************************************************
206 *
207 * FUNCTION: AcpiEnableSubsystem
208 *
209 * PARAMETERS: Flags - Init/enable Options
210 *
211 * RETURN: Status
212 *
213 * DESCRIPTION: Completes the subsystem initialization including hardware.
214 * Puts system into ACPI mode if it isn't already.
215 *
216 ******************************************************************************/
217
218 ACPI_STATUS
219 AcpiEnableSubsystem (
220 UINT32 Flags)
221 {
222 ACPI_STATUS Status = AE_OK;
223
224
225 ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
226
227
228 /* Enable ACPI mode */
229
230 if (!(Flags & ACPI_NO_ACPI_ENABLE))
231 {
232 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
233
234 AcpiGbl_OriginalMode = AcpiHwGetMode();
235
236 Status = AcpiEnable ();
237 if (ACPI_FAILURE (Status))
238 {
239 ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
240 return_ACPI_STATUS (Status);
241 }
242 }
243
244 /*
245 * Obtain a permanent mapping for the FACS. This is required for the
246 * Global Lock and the Firmware Waking Vector
247 */
248 Status = AcpiTbInitializeFacs ();
249 if (ACPI_FAILURE (Status))
250 {
251 ACPI_WARNING ((AE_INFO, "Could not map the FACS table"));
252 return_ACPI_STATUS (Status);
253 }
254
255 /*
256 * Install the default OpRegion handlers. These are installed unless
257 * other handlers have already been installed via the
258 * InstallAddressSpaceHandler interface.
259 */
260 if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
261 {
262 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
263 "[Init] Installing default address space handlers\n"));
264
265 Status = AcpiEvInstallRegionHandlers ();
266 if (ACPI_FAILURE (Status))
267 {
268 return_ACPI_STATUS (Status);
269 }
270 }
271
272 /*
273 * Initialize ACPI Event handling (Fixed and General Purpose)
274 *
275 * Note1: We must have the hardware and events initialized before we can
276 * execute any control methods safely. Any control method can require
277 * ACPI hardware support, so the hardware must be fully initialized before
278 * any method execution!
279 *
280 * Note2: Fixed events are initialized and enabled here. GPEs are
281 * initialized, but cannot be enabled until after the hardware is
282 * completely initialized (SCI and GlobalLock activated) and the various
283 * initialization control methods are run (_REG, _STA, _INI) on the
284 * entire namespace.
285 */
286 if (!(Flags & ACPI_NO_EVENT_INIT))
287 {
288 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
289 "[Init] Initializing ACPI events\n"));
290
291 Status = AcpiEvInitializeEvents ();
292 if (ACPI_FAILURE (Status))
293 {
294 return_ACPI_STATUS (Status);
295 }
296 }
297
298 /*
299 * Install the SCI handler and Global Lock handler. This completes the
300 * hardware initialization.
301 */
302 if (!(Flags & ACPI_NO_HANDLER_INIT))
303 {
304 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
305 "[Init] Installing SCI/GL handlers\n"));
306
307 Status = AcpiEvInstallXruptHandlers ();
308 if (ACPI_FAILURE (Status))
309 {
310 return_ACPI_STATUS (Status);
311 }
312 }
313
314 return_ACPI_STATUS (Status);
315 }
316
ACPI_EXPORT_SYMBOL(AcpiEnableSubsystem)317 ACPI_EXPORT_SYMBOL (AcpiEnableSubsystem)
318
319
320 /*******************************************************************************
321 *
322 * FUNCTION: AcpiInitializeObjects
323 *
324 * PARAMETERS: Flags - Init/enable Options
325 *
326 * RETURN: Status
327 *
328 * DESCRIPTION: Completes namespace initialization by initializing device
329 * objects and executing AML code for Regions, buffers, etc.
330 *
331 ******************************************************************************/
332
333 ACPI_STATUS
334 AcpiInitializeObjects (
335 UINT32 Flags)
336 {
337 ACPI_STATUS Status = AE_OK;
338
339
340 ACPI_FUNCTION_TRACE (AcpiInitializeObjects);
341
342
343 /*
344 * Run all _REG methods
345 *
346 * Note: Any objects accessed by the _REG methods will be automatically
347 * initialized, even if they contain executable AML (see the call to
348 * AcpiNsInitializeObjects below).
349 */
350 if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
351 {
352 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
353 "[Init] Executing _REG OpRegion methods\n"));
354
355 Status = AcpiEvInitializeOpRegions ();
356 if (ACPI_FAILURE (Status))
357 {
358 return_ACPI_STATUS (Status);
359 }
360 }
361
362 /*
363 * Execute any module-level code that was detected during the table load
364 * phase. Although illegal since ACPI 2.0, there are many machines that
365 * contain this type of code. Each block of detected executable AML code
366 * outside of any control method is wrapped with a temporary control
367 * method object and placed on a global list. The methods on this list
368 * are executed below.
369 */
370 AcpiNsExecModuleCodeList ();
371
372 /*
373 * Initialize the objects that remain uninitialized. This runs the
374 * executable AML that may be part of the declaration of these objects:
375 * OperationRegions, BufferFields, Buffers, and Packages.
376 */
377 if (!(Flags & ACPI_NO_OBJECT_INIT))
378 {
379 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
380 "[Init] Completing Initialization of ACPI Objects\n"));
381
382 Status = AcpiNsInitializeObjects ();
383 if (ACPI_FAILURE (Status))
384 {
385 return_ACPI_STATUS (Status);
386 }
387 }
388
389 /*
390 * Initialize all device objects in the namespace. This runs the device
391 * _STA and _INI methods.
392 */
393 if (!(Flags & ACPI_NO_DEVICE_INIT))
394 {
395 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
396 "[Init] Initializing ACPI Devices\n"));
397
398 Status = AcpiNsInitializeDevices ();
399 if (ACPI_FAILURE (Status))
400 {
401 return_ACPI_STATUS (Status);
402 }
403 }
404
405 /*
406 * Initialize the GPE blocks defined in the FADT (GPE block 0 and 1).
407 * The runtime GPEs are enabled here.
408 *
409 * This is where the _PRW methods are executed for the GPEs. These
410 * methods can only be executed after the SCI and Global Lock handlers are
411 * installed and initialized.
412 *
413 * GPEs can only be enabled after the _REG, _STA, and _INI methods have
414 * been run. This ensures that all Operation Regions and all Devices have
415 * been initialized and are ready.
416 */
417 if (!(Flags & ACPI_NO_EVENT_INIT))
418 {
419 Status = AcpiEvInstallFadtGpes ();
420 if (ACPI_FAILURE (Status))
421 {
422 return (Status);
423 }
424 }
425
426 /*
427 * Empty the caches (delete the cached objects) on the assumption that
428 * the table load filled them up more than they will be at runtime --
429 * thus wasting non-paged memory.
430 */
431 Status = AcpiPurgeCachedObjects ();
432
433 AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK;
434 return_ACPI_STATUS (Status);
435 }
436
ACPI_EXPORT_SYMBOL(AcpiInitializeObjects)437 ACPI_EXPORT_SYMBOL (AcpiInitializeObjects)
438
439
440 #endif
441
442 /*******************************************************************************
443 *
444 * FUNCTION: AcpiTerminate
445 *
446 * PARAMETERS: None
447 *
448 * RETURN: Status
449 *
450 * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources.
451 *
452 ******************************************************************************/
453
454 ACPI_STATUS
455 AcpiTerminate (
456 void)
457 {
458 ACPI_STATUS Status;
459
460
461 ACPI_FUNCTION_TRACE (AcpiTerminate);
462
463
464 /* Just exit if subsystem is already shutdown */
465
466 if (AcpiGbl_Shutdown)
467 {
468 ACPI_ERROR ((AE_INFO, "ACPI Subsystem is already terminated"));
469 return_ACPI_STATUS (AE_OK);
470 }
471
472 /* Subsystem appears active, go ahead and shut it down */
473
474 AcpiGbl_Shutdown = TRUE;
475 AcpiGbl_StartupFlags = 0;
476 ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
477
478 /* Terminate the AML Debugger if present */
479
480 ACPI_DEBUGGER_EXEC (AcpiGbl_DbTerminateThreads = TRUE);
481
482 /* Shutdown and free all resources */
483
484 AcpiUtSubsystemShutdown ();
485
486 /* Free the mutex objects */
487
488 AcpiUtMutexTerminate ();
489
490
491 #ifdef ACPI_DEBUGGER
492
493 /* Shut down the debugger */
494
495 AcpiDbTerminate ();
496 #endif
497
498 /* Now we can shutdown the OS-dependent layer */
499
500 Status = AcpiOsTerminate ();
501 return_ACPI_STATUS (Status);
502 }
503
ACPI_EXPORT_SYMBOL(AcpiTerminate)504 ACPI_EXPORT_SYMBOL (AcpiTerminate)
505
506
507 #ifndef ACPI_ASL_COMPILER
508 /*******************************************************************************
509 *
510 * FUNCTION: AcpiSubsystemStatus
511 *
512 * PARAMETERS: None
513 *
514 * RETURN: Status of the ACPI subsystem
515 *
516 * DESCRIPTION: Other drivers that use the ACPI subsystem should call this
517 * before making any other calls, to ensure the subsystem
518 * initialized successfully.
519 *
520 ******************************************************************************/
521
522 ACPI_STATUS
523 AcpiSubsystemStatus (
524 void)
525 {
526
527 if (AcpiGbl_StartupFlags & ACPI_INITIALIZED_OK)
528 {
529 return (AE_OK);
530 }
531 else
532 {
533 return (AE_ERROR);
534 }
535 }
536
ACPI_EXPORT_SYMBOL(AcpiSubsystemStatus)537 ACPI_EXPORT_SYMBOL (AcpiSubsystemStatus)
538
539
540 /*******************************************************************************
541 *
542 * FUNCTION: AcpiGetSystemInfo
543 *
544 * PARAMETERS: OutBuffer - A buffer to receive the resources for the
545 * device
546 *
547 * RETURN: Status - the status of the call
548 *
549 * DESCRIPTION: This function is called to get information about the current
550 * state of the ACPI subsystem. It will return system information
551 * in the OutBuffer.
552 *
553 * If the function fails an appropriate status will be returned
554 * and the value of OutBuffer is undefined.
555 *
556 ******************************************************************************/
557
558 ACPI_STATUS
559 AcpiGetSystemInfo (
560 ACPI_BUFFER *OutBuffer)
561 {
562 ACPI_SYSTEM_INFO *InfoPtr;
563 ACPI_STATUS Status;
564
565
566 ACPI_FUNCTION_TRACE (AcpiGetSystemInfo);
567
568
569 /* Parameter validation */
570
571 Status = AcpiUtValidateBuffer (OutBuffer);
572 if (ACPI_FAILURE (Status))
573 {
574 return_ACPI_STATUS (Status);
575 }
576
577 /* Validate/Allocate/Clear caller buffer */
578
579 Status = AcpiUtInitializeBuffer (OutBuffer, sizeof (ACPI_SYSTEM_INFO));
580 if (ACPI_FAILURE (Status))
581 {
582 return_ACPI_STATUS (Status);
583 }
584
585 /*
586 * Populate the return buffer
587 */
588 InfoPtr = (ACPI_SYSTEM_INFO *) OutBuffer->Pointer;
589
590 InfoPtr->AcpiCaVersion = ACPI_CA_VERSION;
591
592 /* System flags (ACPI capabilities) */
593
594 InfoPtr->Flags = ACPI_SYS_MODE_ACPI;
595
596 /* Timer resolution - 24 or 32 bits */
597
598 if (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER)
599 {
600 InfoPtr->TimerResolution = 24;
601 }
602 else
603 {
604 InfoPtr->TimerResolution = 32;
605 }
606
607 /* Clear the reserved fields */
608
609 InfoPtr->Reserved1 = 0;
610 InfoPtr->Reserved2 = 0;
611
612 /* Current debug levels */
613
614 InfoPtr->DebugLayer = AcpiDbgLayer;
615 InfoPtr->DebugLevel = AcpiDbgLevel;
616
617 return_ACPI_STATUS (AE_OK);
618 }
619
ACPI_EXPORT_SYMBOL(AcpiGetSystemInfo)620 ACPI_EXPORT_SYMBOL (AcpiGetSystemInfo)
621
622
623 /*******************************************************************************
624 *
625 * FUNCTION: AcpiGetStatistics
626 *
627 * PARAMETERS: Stats - Where the statistics are returned
628 *
629 * RETURN: Status - the status of the call
630 *
631 * DESCRIPTION: Get the contents of the various system counters
632 *
633 ******************************************************************************/
634
635 ACPI_STATUS
636 AcpiGetStatistics (
637 ACPI_STATISTICS *Stats)
638 {
639 ACPI_FUNCTION_TRACE (AcpiGetStatistics);
640
641
642 /* Parameter validation */
643
644 if (!Stats)
645 {
646 return_ACPI_STATUS (AE_BAD_PARAMETER);
647 }
648
649 /* Various interrupt-based event counters */
650
651 Stats->SciCount = AcpiSciCount;
652 Stats->GpeCount = AcpiGpeCount;
653
654 ACPI_MEMCPY (Stats->FixedEventCount, AcpiFixedEventCount,
655 sizeof (AcpiFixedEventCount));
656
657
658 /* Other counters */
659
660 Stats->MethodCount = AcpiMethodCount;
661
662 return_ACPI_STATUS (AE_OK);
663 }
664
ACPI_EXPORT_SYMBOL(AcpiGetStatistics)665 ACPI_EXPORT_SYMBOL (AcpiGetStatistics)
666
667
668 /*****************************************************************************
669 *
670 * FUNCTION: AcpiInstallInitializationHandler
671 *
672 * PARAMETERS: Handler - Callback procedure
673 * Function - Not (currently) used, see below
674 *
675 * RETURN: Status
676 *
677 * DESCRIPTION: Install an initialization handler
678 *
679 * TBD: When a second function is added, must save the Function also.
680 *
681 ****************************************************************************/
682
683 ACPI_STATUS
684 AcpiInstallInitializationHandler (
685 ACPI_INIT_HANDLER Handler,
686 UINT32 Function)
687 {
688
689 if (!Handler)
690 {
691 return (AE_BAD_PARAMETER);
692 }
693
694 if (AcpiGbl_InitHandler)
695 {
696 return (AE_ALREADY_EXISTS);
697 }
698
699 AcpiGbl_InitHandler = Handler;
700 return AE_OK;
701 }
702
ACPI_EXPORT_SYMBOL(AcpiInstallInitializationHandler)703 ACPI_EXPORT_SYMBOL (AcpiInstallInitializationHandler)
704
705
706 /*****************************************************************************
707 *
708 * FUNCTION: AcpiPurgeCachedObjects
709 *
710 * PARAMETERS: None
711 *
712 * RETURN: Status
713 *
714 * DESCRIPTION: Empty all caches (delete the cached objects)
715 *
716 ****************************************************************************/
717
718 ACPI_STATUS
719 AcpiPurgeCachedObjects (
720 void)
721 {
722 ACPI_FUNCTION_TRACE (AcpiPurgeCachedObjects);
723
724 (void) AcpiOsPurgeCache (AcpiGbl_StateCache);
725 (void) AcpiOsPurgeCache (AcpiGbl_OperandCache);
726 (void) AcpiOsPurgeCache (AcpiGbl_PsNodeCache);
727 (void) AcpiOsPurgeCache (AcpiGbl_PsNodeExtCache);
728 return_ACPI_STATUS (AE_OK);
729 }
730
731 ACPI_EXPORT_SYMBOL (AcpiPurgeCachedObjects)
732
733 #endif /* ACPI_ASL_COMPILER */
734
735