1 /******************************************************************************
2 *
3 * Module Name: nsinit - namespace initialization
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2016, Intel Corp.
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 #include "acpi.h"
45 #include "accommon.h"
46 #include "acnamesp.h"
47 #include "acdispat.h"
48 #include "acinterp.h"
49 #include "acevents.h"
50
51 #define _COMPONENT ACPI_NAMESPACE
52 ACPI_MODULE_NAME ("nsinit")
53
54 /* Local prototypes */
55
56 static ACPI_STATUS
57 AcpiNsInitOneObject (
58 ACPI_HANDLE ObjHandle,
59 UINT32 Level,
60 void *Context,
61 void **ReturnValue);
62
63 static ACPI_STATUS
64 AcpiNsInitOneDevice (
65 ACPI_HANDLE ObjHandle,
66 UINT32 NestingLevel,
67 void *Context,
68 void **ReturnValue);
69
70 static ACPI_STATUS
71 AcpiNsFindIniMethods (
72 ACPI_HANDLE ObjHandle,
73 UINT32 NestingLevel,
74 void *Context,
75 void **ReturnValue);
76
77
78 /*******************************************************************************
79 *
80 * FUNCTION: AcpiNsInitializeObjects
81 *
82 * PARAMETERS: None
83 *
84 * RETURN: Status
85 *
86 * DESCRIPTION: Walk the entire namespace and perform any necessary
87 * initialization on the objects found therein
88 *
89 ******************************************************************************/
90
91 ACPI_STATUS
AcpiNsInitializeObjects(void)92 AcpiNsInitializeObjects (
93 void)
94 {
95 ACPI_STATUS Status;
96 ACPI_INIT_WALK_INFO Info;
97
98
99 ACPI_FUNCTION_TRACE (NsInitializeObjects);
100
101
102 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
103 "[Init] Completing Initialization of ACPI Objects\n"));
104 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
105 "**** Starting initialization of namespace objects ****\n"));
106 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
107 "Completing Region/Field/Buffer/Package initialization:\n"));
108
109 /* Set all init info to zero */
110
111 memset (&Info, 0, sizeof (ACPI_INIT_WALK_INFO));
112
113 /* Walk entire namespace from the supplied root */
114
115 Status = AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
116 ACPI_UINT32_MAX, AcpiNsInitOneObject, NULL,
117 &Info, NULL);
118 if (ACPI_FAILURE (Status))
119 {
120 ACPI_EXCEPTION ((AE_INFO, Status, "During WalkNamespace"));
121 }
122
123 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
124 " Initialized %u/%u Regions %u/%u Fields %u/%u "
125 "Buffers %u/%u Packages (%u nodes)\n",
126 Info.OpRegionInit, Info.OpRegionCount,
127 Info.FieldInit, Info.FieldCount,
128 Info.BufferInit, Info.BufferCount,
129 Info.PackageInit, Info.PackageCount, Info.ObjectCount));
130
131 ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
132 "%u Control Methods found\n%u Op Regions found\n",
133 Info.MethodCount, Info.OpRegionCount));
134
135 return_ACPI_STATUS (AE_OK);
136 }
137
138
139 /*******************************************************************************
140 *
141 * FUNCTION: AcpiNsInitializeDevices
142 *
143 * PARAMETERS: None
144 *
145 * RETURN: ACPI_STATUS
146 *
147 * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
148 * This means running _INI on all present devices.
149 *
150 * Note: We install PCI config space handler on region access,
151 * not here.
152 *
153 ******************************************************************************/
154
155 ACPI_STATUS
AcpiNsInitializeDevices(UINT32 Flags)156 AcpiNsInitializeDevices (
157 UINT32 Flags)
158 {
159 ACPI_STATUS Status = AE_OK;
160 ACPI_DEVICE_WALK_INFO Info;
161 ACPI_HANDLE Handle;
162
163
164 ACPI_FUNCTION_TRACE (NsInitializeDevices);
165
166
167 if (!(Flags & ACPI_NO_DEVICE_INIT))
168 {
169 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
170 "[Init] Initializing ACPI Devices\n"));
171
172 /* Init counters */
173
174 Info.DeviceCount = 0;
175 Info.Num_STA = 0;
176 Info.Num_INI = 0;
177
178 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
179 "Initializing Device/Processor/Thermal objects "
180 "and executing _INI/_STA methods:\n"));
181
182 /* Tree analysis: find all subtrees that contain _INI methods */
183
184 Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
185 ACPI_UINT32_MAX, FALSE, AcpiNsFindIniMethods, NULL, &Info, NULL);
186 if (ACPI_FAILURE (Status))
187 {
188 goto ErrorExit;
189 }
190
191 /* Allocate the evaluation information block */
192
193 Info.EvaluateInfo = ACPI_ALLOCATE_ZEROED (sizeof (ACPI_EVALUATE_INFO));
194 if (!Info.EvaluateInfo)
195 {
196 Status = AE_NO_MEMORY;
197 goto ErrorExit;
198 }
199
200 /*
201 * Execute the "global" _INI method that may appear at the root.
202 * This support is provided for Windows compatibility (Vista+) and
203 * is not part of the ACPI specification.
204 */
205 Info.EvaluateInfo->PrefixNode = AcpiGbl_RootNode;
206 Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI;
207 Info.EvaluateInfo->Parameters = NULL;
208 Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;
209
210 Status = AcpiNsEvaluate (Info.EvaluateInfo);
211 if (ACPI_SUCCESS (Status))
212 {
213 Info.Num_INI++;
214 }
215
216 /*
217 * Execute \_SB._INI.
218 * There appears to be a strict order requirement for \_SB._INI,
219 * which should be evaluated before any _REG evaluations.
220 */
221 Status = AcpiGetHandle (NULL, "\\_SB", &Handle);
222 if (ACPI_SUCCESS (Status))
223 {
224 memset (Info.EvaluateInfo, 0, sizeof (ACPI_EVALUATE_INFO));
225 Info.EvaluateInfo->PrefixNode = Handle;
226 Info.EvaluateInfo->RelativePathname = METHOD_NAME__INI;
227 Info.EvaluateInfo->Parameters = NULL;
228 Info.EvaluateInfo->Flags = ACPI_IGNORE_RETURN_VALUE;
229
230 Status = AcpiNsEvaluate (Info.EvaluateInfo);
231 if (ACPI_SUCCESS (Status))
232 {
233 Info.Num_INI++;
234 }
235 }
236 }
237
238 /*
239 * Run all _REG methods
240 *
241 * Note: Any objects accessed by the _REG methods will be automatically
242 * initialized, even if they contain executable AML (see the call to
243 * AcpiNsInitializeObjects below).
244 *
245 * Note: According to the ACPI specification, we actually needn't execute
246 * _REG for SystemMemory/SystemIo operation regions, but for PCI_Config
247 * operation regions, it is required to evaluate _REG for those on a PCI
248 * root bus that doesn't contain _BBN object. So this code is kept here
249 * in order not to break things.
250 */
251 if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
252 {
253 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
254 "[Init] Executing _REG OpRegion methods\n"));
255
256 Status = AcpiEvInitializeOpRegions ();
257 if (ACPI_FAILURE (Status))
258 {
259 goto ErrorExit;
260 }
261 }
262
263 if (!(Flags & ACPI_NO_DEVICE_INIT))
264 {
265 /* Walk namespace to execute all _INIs on present devices */
266
267 Status = AcpiNsWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
268 ACPI_UINT32_MAX, FALSE, AcpiNsInitOneDevice, NULL, &Info, NULL);
269
270 /*
271 * Any _OSI requests should be completed by now. If the BIOS has
272 * requested any Windows OSI strings, we will always truncate
273 * I/O addresses to 16 bits -- for Windows compatibility.
274 */
275 if (AcpiGbl_OsiData >= ACPI_OSI_WIN_2000)
276 {
277 AcpiGbl_TruncateIoAddresses = TRUE;
278 }
279
280 ACPI_FREE (Info.EvaluateInfo);
281 if (ACPI_FAILURE (Status))
282 {
283 goto ErrorExit;
284 }
285
286 ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
287 " Executed %u _INI methods requiring %u _STA executions "
288 "(examined %u objects)\n",
289 Info.Num_INI, Info.Num_STA, Info.DeviceCount));
290 }
291
292 return_ACPI_STATUS (Status);
293
294
295 ErrorExit:
296 ACPI_EXCEPTION ((AE_INFO, Status, "During device initialization"));
297 return_ACPI_STATUS (Status);
298 }
299
300
301 /*******************************************************************************
302 *
303 * FUNCTION: AcpiNsInitOneObject
304 *
305 * PARAMETERS: ObjHandle - Node
306 * Level - Current nesting level
307 * Context - Points to a init info struct
308 * ReturnValue - Not used
309 *
310 * RETURN: Status
311 *
312 * DESCRIPTION: Callback from AcpiWalkNamespace. Invoked for every object
313 * within the namespace.
314 *
315 * Currently, the only objects that require initialization are:
316 * 1) Methods
317 * 2) Op Regions
318 *
319 ******************************************************************************/
320
321 static ACPI_STATUS
AcpiNsInitOneObject(ACPI_HANDLE ObjHandle,UINT32 Level,void * Context,void ** ReturnValue)322 AcpiNsInitOneObject (
323 ACPI_HANDLE ObjHandle,
324 UINT32 Level,
325 void *Context,
326 void **ReturnValue)
327 {
328 ACPI_OBJECT_TYPE Type;
329 ACPI_STATUS Status = AE_OK;
330 ACPI_INIT_WALK_INFO *Info = (ACPI_INIT_WALK_INFO *) Context;
331 ACPI_NAMESPACE_NODE *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
332 ACPI_OPERAND_OBJECT *ObjDesc;
333
334
335 ACPI_FUNCTION_NAME (NsInitOneObject);
336
337
338 Info->ObjectCount++;
339
340 /* And even then, we are only interested in a few object types */
341
342 Type = AcpiNsGetType (ObjHandle);
343 ObjDesc = AcpiNsGetAttachedObject (Node);
344 if (!ObjDesc)
345 {
346 return (AE_OK);
347 }
348
349 /* Increment counters for object types we are looking for */
350
351 switch (Type)
352 {
353 case ACPI_TYPE_REGION:
354
355 Info->OpRegionCount++;
356 break;
357
358 case ACPI_TYPE_BUFFER_FIELD:
359
360 Info->FieldCount++;
361 break;
362
363 case ACPI_TYPE_LOCAL_BANK_FIELD:
364
365 Info->FieldCount++;
366 break;
367
368 case ACPI_TYPE_BUFFER:
369
370 Info->BufferCount++;
371 break;
372
373 case ACPI_TYPE_PACKAGE:
374
375 Info->PackageCount++;
376 break;
377
378 default:
379
380 /* No init required, just exit now */
381
382 return (AE_OK);
383 }
384
385 /* If the object is already initialized, nothing else to do */
386
387 if (ObjDesc->Common.Flags & AOPOBJ_DATA_VALID)
388 {
389 return (AE_OK);
390 }
391
392 /* Must lock the interpreter before executing AML code */
393
394 AcpiExEnterInterpreter ();
395
396 /*
397 * Each of these types can contain executable AML code within the
398 * declaration.
399 */
400 switch (Type)
401 {
402 case ACPI_TYPE_REGION:
403
404 Info->OpRegionInit++;
405 Status = AcpiDsGetRegionArguments (ObjDesc);
406 break;
407
408 case ACPI_TYPE_BUFFER_FIELD:
409
410 Info->FieldInit++;
411 Status = AcpiDsGetBufferFieldArguments (ObjDesc);
412 break;
413
414 case ACPI_TYPE_LOCAL_BANK_FIELD:
415
416 Info->FieldInit++;
417 Status = AcpiDsGetBankFieldArguments (ObjDesc);
418 break;
419
420 case ACPI_TYPE_BUFFER:
421
422 Info->BufferInit++;
423 Status = AcpiDsGetBufferArguments (ObjDesc);
424 break;
425
426 case ACPI_TYPE_PACKAGE:
427
428 Info->PackageInit++;
429 Status = AcpiDsGetPackageArguments (ObjDesc);
430 break;
431
432 default:
433
434 /* No other types can get here */
435
436 break;
437 }
438
439 if (ACPI_FAILURE (Status))
440 {
441 ACPI_EXCEPTION ((AE_INFO, Status,
442 "Could not execute arguments for [%4.4s] (%s)",
443 AcpiUtGetNodeName (Node), AcpiUtGetTypeName (Type)));
444 }
445
446 /*
447 * We ignore errors from above, and always return OK, since we don't want
448 * to abort the walk on any single error.
449 */
450 AcpiExExitInterpreter ();
451 return (AE_OK);
452 }
453
454
455 /*******************************************************************************
456 *
457 * FUNCTION: AcpiNsFindIniMethods
458 *
459 * PARAMETERS: ACPI_WALK_CALLBACK
460 *
461 * RETURN: ACPI_STATUS
462 *
463 * DESCRIPTION: Called during namespace walk. Finds objects named _INI under
464 * device/processor/thermal objects, and marks the entire subtree
465 * with a SUBTREE_HAS_INI flag. This flag is used during the
466 * subsequent device initialization walk to avoid entire subtrees
467 * that do not contain an _INI.
468 *
469 ******************************************************************************/
470
471 static ACPI_STATUS
AcpiNsFindIniMethods(ACPI_HANDLE ObjHandle,UINT32 NestingLevel,void * Context,void ** ReturnValue)472 AcpiNsFindIniMethods (
473 ACPI_HANDLE ObjHandle,
474 UINT32 NestingLevel,
475 void *Context,
476 void **ReturnValue)
477 {
478 ACPI_DEVICE_WALK_INFO *Info = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);
479 ACPI_NAMESPACE_NODE *Node;
480 ACPI_NAMESPACE_NODE *ParentNode;
481
482
483 /* Keep count of device/processor/thermal objects */
484
485 Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
486 if ((Node->Type == ACPI_TYPE_DEVICE) ||
487 (Node->Type == ACPI_TYPE_PROCESSOR) ||
488 (Node->Type == ACPI_TYPE_THERMAL))
489 {
490 Info->DeviceCount++;
491 return (AE_OK);
492 }
493
494 /* We are only looking for methods named _INI */
495
496 if (!ACPI_COMPARE_NAME (Node->Name.Ascii, METHOD_NAME__INI))
497 {
498 return (AE_OK);
499 }
500
501 /*
502 * The only _INI methods that we care about are those that are
503 * present under Device, Processor, and Thermal objects.
504 */
505 ParentNode = Node->Parent;
506 switch (ParentNode->Type)
507 {
508 case ACPI_TYPE_DEVICE:
509 case ACPI_TYPE_PROCESSOR:
510 case ACPI_TYPE_THERMAL:
511
512 /* Mark parent and bubble up the INI present flag to the root */
513
514 while (ParentNode)
515 {
516 ParentNode->Flags |= ANOBJ_SUBTREE_HAS_INI;
517 ParentNode = ParentNode->Parent;
518 }
519 break;
520
521 default:
522
523 break;
524 }
525
526 return (AE_OK);
527 }
528
529
530 /*******************************************************************************
531 *
532 * FUNCTION: AcpiNsInitOneDevice
533 *
534 * PARAMETERS: ACPI_WALK_CALLBACK
535 *
536 * RETURN: ACPI_STATUS
537 *
538 * DESCRIPTION: This is called once per device soon after ACPI is enabled
539 * to initialize each device. It determines if the device is
540 * present, and if so, calls _INI.
541 *
542 ******************************************************************************/
543
544 static ACPI_STATUS
AcpiNsInitOneDevice(ACPI_HANDLE ObjHandle,UINT32 NestingLevel,void * Context,void ** ReturnValue)545 AcpiNsInitOneDevice (
546 ACPI_HANDLE ObjHandle,
547 UINT32 NestingLevel,
548 void *Context,
549 void **ReturnValue)
550 {
551 ACPI_DEVICE_WALK_INFO *WalkInfo = ACPI_CAST_PTR (ACPI_DEVICE_WALK_INFO, Context);
552 ACPI_EVALUATE_INFO *Info = WalkInfo->EvaluateInfo;
553 UINT32 Flags;
554 ACPI_STATUS Status;
555 ACPI_NAMESPACE_NODE *DeviceNode;
556
557
558 ACPI_FUNCTION_TRACE (NsInitOneDevice);
559
560
561 /* We are interested in Devices, Processors and ThermalZones only */
562
563 DeviceNode = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
564 if ((DeviceNode->Type != ACPI_TYPE_DEVICE) &&
565 (DeviceNode->Type != ACPI_TYPE_PROCESSOR) &&
566 (DeviceNode->Type != ACPI_TYPE_THERMAL))
567 {
568 return_ACPI_STATUS (AE_OK);
569 }
570
571 /*
572 * Because of an earlier namespace analysis, all subtrees that contain an
573 * _INI method are tagged.
574 *
575 * If this device subtree does not contain any _INI methods, we
576 * can exit now and stop traversing this entire subtree.
577 */
578 if (!(DeviceNode->Flags & ANOBJ_SUBTREE_HAS_INI))
579 {
580 return_ACPI_STATUS (AE_CTRL_DEPTH);
581 }
582
583 /*
584 * Run _STA to determine if this device is present and functioning. We
585 * must know this information for two important reasons (from ACPI spec):
586 *
587 * 1) We can only run _INI if the device is present.
588 * 2) We must abort the device tree walk on this subtree if the device is
589 * not present and is not functional (we will not examine the children)
590 *
591 * The _STA method is not required to be present under the device, we
592 * assume the device is present if _STA does not exist.
593 */
594 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
595 ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__STA));
596
597 Status = AcpiUtExecute_STA (DeviceNode, &Flags);
598 if (ACPI_FAILURE (Status))
599 {
600 /* Ignore error and move on to next device */
601
602 return_ACPI_STATUS (AE_OK);
603 }
604
605 /*
606 * Flags == -1 means that _STA was not found. In this case, we assume that
607 * the device is both present and functional.
608 *
609 * From the ACPI spec, description of _STA:
610 *
611 * "If a device object (including the processor object) does not have an
612 * _STA object, then OSPM assumes that all of the above bits are set (in
613 * other words, the device is present, ..., and functioning)"
614 */
615 if (Flags != ACPI_UINT32_MAX)
616 {
617 WalkInfo->Num_STA++;
618 }
619
620 /*
621 * Examine the PRESENT and FUNCTIONING status bits
622 *
623 * Note: ACPI spec does not seem to specify behavior for the present but
624 * not functioning case, so we assume functioning if present.
625 */
626 if (!(Flags & ACPI_STA_DEVICE_PRESENT))
627 {
628 /* Device is not present, we must examine the Functioning bit */
629
630 if (Flags & ACPI_STA_DEVICE_FUNCTIONING)
631 {
632 /*
633 * Device is not present but is "functioning". In this case,
634 * we will not run _INI, but we continue to examine the children
635 * of this device.
636 *
637 * From the ACPI spec, description of _STA: (Note - no mention
638 * of whether to run _INI or not on the device in question)
639 *
640 * "_STA may return bit 0 clear (not present) with bit 3 set
641 * (device is functional). This case is used to indicate a valid
642 * device for which no device driver should be loaded (for example,
643 * a bridge device.) Children of this device may be present and
644 * valid. OSPM should continue enumeration below a device whose
645 * _STA returns this bit combination"
646 */
647 return_ACPI_STATUS (AE_OK);
648 }
649 else
650 {
651 /*
652 * Device is not present and is not functioning. We must abort the
653 * walk of this subtree immediately -- don't look at the children
654 * of such a device.
655 *
656 * From the ACPI spec, description of _INI:
657 *
658 * "If the _STA method indicates that the device is not present,
659 * OSPM will not run the _INI and will not examine the children
660 * of the device for _INI methods"
661 */
662 return_ACPI_STATUS (AE_CTRL_DEPTH);
663 }
664 }
665
666 /*
667 * The device is present or is assumed present if no _STA exists.
668 * Run the _INI if it exists (not required to exist)
669 *
670 * Note: We know there is an _INI within this subtree, but it may not be
671 * under this particular device, it may be lower in the branch.
672 */
673 if (!ACPI_COMPARE_NAME (DeviceNode->Name.Ascii, "_SB_") ||
674 DeviceNode->Parent != AcpiGbl_RootNode)
675 {
676 ACPI_DEBUG_EXEC (AcpiUtDisplayInitPathname (
677 ACPI_TYPE_METHOD, DeviceNode, METHOD_NAME__INI));
678
679 memset (Info, 0, sizeof (ACPI_EVALUATE_INFO));
680 Info->PrefixNode = DeviceNode;
681 Info->RelativePathname = METHOD_NAME__INI;
682 Info->Parameters = NULL;
683 Info->Flags = ACPI_IGNORE_RETURN_VALUE;
684
685 Status = AcpiNsEvaluate (Info);
686 if (ACPI_SUCCESS (Status))
687 {
688 WalkInfo->Num_INI++;
689 }
690
691 #ifdef ACPI_DEBUG_OUTPUT
692 else if (Status != AE_NOT_FOUND)
693 {
694 /* Ignore error and move on to next device */
695
696 char *ScopeName = AcpiNsGetNormalizedPathname (DeviceNode, TRUE);
697
698 ACPI_EXCEPTION ((AE_INFO, Status, "during %s._INI execution",
699 ScopeName));
700 ACPI_FREE (ScopeName);
701 }
702 #endif
703 }
704
705 /* Ignore errors from above */
706
707 Status = AE_OK;
708
709 /*
710 * The _INI method has been run if present; call the Global Initialization
711 * Handler for this device.
712 */
713 if (AcpiGbl_InitHandler)
714 {
715 Status = AcpiGbl_InitHandler (DeviceNode, ACPI_INIT_DEVICE_INI);
716 }
717
718 return_ACPI_STATUS (Status);
719 }
720