xref: /freebsd/sys/contrib/dev/acpica/components/debugger/dbmethod.c (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1 /*******************************************************************************
2  *
3  * Module Name: dbmethod - Debug commands for control methods
4  *
5  ******************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2022, 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  * Alternatively, you may choose to be licensed under the terms of the
117  * following license:
118  *
119  * Redistribution and use in source and binary forms, with or without
120  * modification, are permitted provided that the following conditions
121  * are met:
122  * 1. Redistributions of source code must retain the above copyright
123  *    notice, this list of conditions, and the following disclaimer,
124  *    without modification.
125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
126  *    substantially similar to the "NO WARRANTY" disclaimer below
127  *    ("Disclaimer") and any redistribution must be conditioned upon
128  *    including a substantially similar Disclaimer requirement for further
129  *    binary redistribution.
130  * 3. Neither the names of the above-listed copyright holders nor the names
131  *    of any contributors may be used to endorse or promote products derived
132  *    from this software without specific prior written permission.
133  *
134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
145  *
146  * Alternatively, you may choose to be licensed under the terms of the
147  * GNU General Public License ("GPL") version 2 as published by the Free
148  * Software Foundation.
149  *
150  *****************************************************************************/
151 
152 #include <contrib/dev/acpica/include/acpi.h>
153 #include <contrib/dev/acpica/include/accommon.h>
154 #include <contrib/dev/acpica/include/acdispat.h>
155 #include <contrib/dev/acpica/include/acnamesp.h>
156 #include <contrib/dev/acpica/include/acdebug.h>
157 #include <contrib/dev/acpica/include/acparser.h>
158 #include <contrib/dev/acpica/include/acpredef.h>
159 
160 
161 #define _COMPONENT          ACPI_CA_DEBUGGER
162         ACPI_MODULE_NAME    ("dbmethod")
163 
164 /* Local prototypes */
165 
166 static ACPI_STATUS
167 AcpiDbWalkForExecute (
168     ACPI_HANDLE             ObjHandle,
169     UINT32                  NestingLevel,
170     void                    *Context,
171     void                    **ReturnValue);
172 
173 static ACPI_STATUS
174 AcpiDbEvaluateObject (
175     ACPI_NAMESPACE_NODE     *Node);
176 
177 
178 /*******************************************************************************
179  *
180  * FUNCTION:    AcpiDbSetMethodBreakpoint
181  *
182  * PARAMETERS:  Location            - AML offset of breakpoint
183  *              WalkState           - Current walk info
184  *              Op                  - Current Op (from parse walk)
185  *
186  * RETURN:      None
187  *
188  * DESCRIPTION: Set a breakpoint in a control method at the specified
189  *              AML offset
190  *
191  ******************************************************************************/
192 
193 void
194 AcpiDbSetMethodBreakpoint (
195     char                    *Location,
196     ACPI_WALK_STATE         *WalkState,
197     ACPI_PARSE_OBJECT       *Op)
198 {
199     UINT32                  Address;
200     UINT32                  AmlOffset;
201 
202 
203     if (!Op)
204     {
205         AcpiOsPrintf ("There is no method currently executing\n");
206         return;
207     }
208 
209     /* Get and verify the breakpoint address */
210 
211     Address = strtoul (Location, NULL, 16);
212     AmlOffset = (UINT32) ACPI_PTR_DIFF (Op->Common.Aml,
213         WalkState->ParserState.AmlStart);
214     if (Address <= AmlOffset)
215     {
216         AcpiOsPrintf ("Breakpoint %X is beyond current address %X\n",
217             Address, AmlOffset);
218     }
219 
220     /* Save breakpoint in current walk */
221 
222     WalkState->UserBreakpoint = Address;
223     AcpiOsPrintf ("Breakpoint set at AML offset %X\n", Address);
224 }
225 
226 
227 /*******************************************************************************
228  *
229  * FUNCTION:    AcpiDbSetMethodCallBreakpoint
230  *
231  * PARAMETERS:  Op                  - Current Op (from parse walk)
232  *
233  * RETURN:      None
234  *
235  * DESCRIPTION: Set a breakpoint in a control method at the specified
236  *              AML offset
237  *
238  ******************************************************************************/
239 
240 void
241 AcpiDbSetMethodCallBreakpoint (
242     ACPI_PARSE_OBJECT       *Op)
243 {
244 
245 
246     if (!Op)
247     {
248         AcpiOsPrintf ("There is no method currently executing\n");
249         return;
250     }
251 
252     AcpiGbl_StepToNextCall = TRUE;
253 }
254 
255 
256 /*******************************************************************************
257  *
258  * FUNCTION:    AcpiDbSetMethodData
259  *
260  * PARAMETERS:  TypeArg         - L for local, A for argument
261  *              IndexArg        - which one
262  *              ValueArg        - Value to set.
263  *
264  * RETURN:      None
265  *
266  * DESCRIPTION: Set a local or argument for the running control method.
267  *              NOTE: only object supported is Number.
268  *
269  ******************************************************************************/
270 
271 void
272 AcpiDbSetMethodData (
273     char                    *TypeArg,
274     char                    *IndexArg,
275     char                    *ValueArg)
276 {
277     char                    Type;
278     UINT32                  Index;
279     UINT32                  Value;
280     ACPI_WALK_STATE         *WalkState;
281     ACPI_OPERAND_OBJECT     *ObjDesc;
282     ACPI_STATUS             Status;
283     ACPI_NAMESPACE_NODE     *Node;
284 
285 
286     /* Validate TypeArg */
287 
288     AcpiUtStrupr (TypeArg);
289     Type = TypeArg[0];
290     if ((Type != 'L') &&
291         (Type != 'A') &&
292         (Type != 'N'))
293     {
294         AcpiOsPrintf ("Invalid SET operand: %s\n", TypeArg);
295         return;
296     }
297 
298     Value = strtoul (ValueArg, NULL, 16);
299 
300     if (Type == 'N')
301     {
302         Node = AcpiDbConvertToNode (IndexArg);
303         if (!Node)
304         {
305             return;
306         }
307 
308         if (Node->Type != ACPI_TYPE_INTEGER)
309         {
310             AcpiOsPrintf ("Can only set Integer nodes\n");
311             return;
312         }
313         ObjDesc = Node->Object;
314         ObjDesc->Integer.Value = Value;
315         return;
316     }
317 
318     /* Get the index and value */
319 
320     Index = strtoul (IndexArg, NULL, 16);
321 
322     WalkState = AcpiDsGetCurrentWalkState (AcpiGbl_CurrentWalkList);
323     if (!WalkState)
324     {
325         AcpiOsPrintf ("There is no method currently executing\n");
326         return;
327     }
328 
329     /* Create and initialize the new object */
330 
331     ObjDesc = AcpiUtCreateIntegerObject ((UINT64) Value);
332     if (!ObjDesc)
333     {
334         AcpiOsPrintf ("Could not create an internal object\n");
335         return;
336     }
337 
338     /* Store the new object into the target */
339 
340     switch (Type)
341     {
342     case 'A':
343 
344         /* Set a method argument */
345 
346         if (Index > ACPI_METHOD_MAX_ARG)
347         {
348             AcpiOsPrintf ("Arg%u - Invalid argument name\n",
349                 Index);
350             goto Cleanup;
351         }
352 
353         Status = AcpiDsStoreObjectToLocal (ACPI_REFCLASS_ARG,
354             Index, ObjDesc, WalkState);
355         if (ACPI_FAILURE (Status))
356         {
357             goto Cleanup;
358         }
359 
360         ObjDesc = WalkState->Arguments[Index].Object;
361 
362         AcpiOsPrintf ("Arg%u: ", Index);
363         AcpiDbDisplayInternalObject (ObjDesc, WalkState);
364         break;
365 
366     case 'L':
367 
368         /* Set a method local */
369 
370         if (Index > ACPI_METHOD_MAX_LOCAL)
371         {
372             AcpiOsPrintf ("Local%u - Invalid local variable name\n",
373                 Index);
374             goto Cleanup;
375         }
376 
377         Status = AcpiDsStoreObjectToLocal (ACPI_REFCLASS_LOCAL,
378             Index, ObjDesc, WalkState);
379         if (ACPI_FAILURE (Status))
380         {
381             goto Cleanup;
382         }
383 
384         ObjDesc = WalkState->LocalVariables[Index].Object;
385 
386         AcpiOsPrintf ("Local%u: ", Index);
387         AcpiDbDisplayInternalObject (ObjDesc, WalkState);
388         break;
389 
390     default:
391 
392         break;
393     }
394 
395 Cleanup:
396     AcpiUtRemoveReference (ObjDesc);
397 }
398 
399 
400 #ifdef ACPI_DISASSEMBLER
401 /*******************************************************************************
402  *
403  * FUNCTION:    AcpiDbDisassembleAml
404  *
405  * PARAMETERS:  Statements          - Number of statements to disassemble
406  *              Op                  - Current Op (from parse walk)
407  *
408  * RETURN:      None
409  *
410  * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number
411  *              of statements specified.
412  *
413  ******************************************************************************/
414 
415 void
416 AcpiDbDisassembleAml (
417     char                    *Statements,
418     ACPI_PARSE_OBJECT       *Op)
419 {
420     UINT32                  NumStatements = 8;
421 
422 
423     if (!Op)
424     {
425         AcpiOsPrintf ("There is no method currently executing\n");
426         return;
427     }
428 
429     if (Statements)
430     {
431         NumStatements = strtoul (Statements, NULL, 0);
432     }
433 
434     AcpiDmDisassemble (NULL, Op, NumStatements);
435 }
436 
437 
438 /*******************************************************************************
439  *
440  * FUNCTION:    AcpiDbDisassembleMethod
441  *
442  * PARAMETERS:  Name            - Name of control method
443  *
444  * RETURN:      None
445  *
446  * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number
447  *              of statements specified.
448  *
449  ******************************************************************************/
450 
451 ACPI_STATUS
452 AcpiDbDisassembleMethod (
453     char                    *Name)
454 {
455     ACPI_STATUS             Status;
456     ACPI_PARSE_OBJECT       *Op;
457     ACPI_WALK_STATE         *WalkState;
458     ACPI_OPERAND_OBJECT     *ObjDesc;
459     ACPI_NAMESPACE_NODE     *Method;
460 
461 
462     Method = AcpiDbConvertToNode (Name);
463     if (!Method)
464     {
465         return (AE_BAD_PARAMETER);
466     }
467 
468     if (Method->Type != ACPI_TYPE_METHOD)
469     {
470         ACPI_ERROR ((AE_INFO, "%s (%s): Object must be a control method",
471             Name, AcpiUtGetTypeName (Method->Type)));
472         return (AE_BAD_PARAMETER);
473     }
474 
475     ObjDesc = Method->Object;
476 
477     Op = AcpiPsCreateScopeOp (ObjDesc->Method.AmlStart);
478     if (!Op)
479     {
480         return (AE_NO_MEMORY);
481     }
482 
483     /* Create and initialize a new walk state */
484 
485     WalkState = AcpiDsCreateWalkState (0, Op, NULL, NULL);
486     if (!WalkState)
487     {
488         return (AE_NO_MEMORY);
489     }
490 
491     Status = AcpiDsInitAmlWalk (WalkState, Op, NULL,
492         ObjDesc->Method.AmlStart,
493         ObjDesc->Method.AmlLength, NULL, ACPI_IMODE_LOAD_PASS1);
494     if (ACPI_FAILURE (Status))
495     {
496         return (Status);
497     }
498 
499     Status = AcpiUtAllocateOwnerId (&ObjDesc->Method.OwnerId);
500     if (ACPI_FAILURE(Status))
501     {
502         return (Status);
503     }
504 
505     WalkState->OwnerId = ObjDesc->Method.OwnerId;
506 
507     /* Push start scope on scope stack and make it current */
508 
509     Status = AcpiDsScopeStackPush (Method,
510         Method->Type, WalkState);
511     if (ACPI_FAILURE (Status))
512     {
513         return (Status);
514     }
515 
516     /* Parse the entire method AML including deferred operators */
517 
518     WalkState->ParseFlags &= ~ACPI_PARSE_DELETE_TREE;
519     WalkState->ParseFlags |= ACPI_PARSE_DISASSEMBLE;
520 
521     Status = AcpiPsParseAml (WalkState);
522     if (ACPI_FAILURE(Status))
523     {
524         return (Status);
525     }
526 
527     (void) AcpiDmParseDeferredOps (Op);
528 
529     /* Now we can disassemble the method */
530 
531     AcpiGbl_DmOpt_Verbose = FALSE;
532     AcpiDmDisassemble (NULL, Op, 0);
533     AcpiGbl_DmOpt_Verbose = TRUE;
534 
535     AcpiPsDeleteParseTree (Op);
536 
537     /* Method cleanup */
538 
539     AcpiNsDeleteNamespaceSubtree (Method);
540     AcpiNsDeleteNamespaceByOwner (ObjDesc->Method.OwnerId);
541     AcpiUtReleaseOwnerId (&ObjDesc->Method.OwnerId);
542     return (AE_OK);
543 }
544 #endif
545 
546 
547 /*******************************************************************************
548  *
549  * FUNCTION:    AcpiDbEvaluateObject
550  *
551  * PARAMETERS:  Node                - Namespace node for the object
552  *
553  * RETURN:      Status
554  *
555  * DESCRIPTION: Main execution function for the Evaluate/Execute/All debugger
556  *              commands.
557  *
558  ******************************************************************************/
559 
560 static ACPI_STATUS
561 AcpiDbEvaluateObject (
562     ACPI_NAMESPACE_NODE     *Node)
563 {
564     char                    *Pathname;
565     UINT32                  i;
566     ACPI_DEVICE_INFO        *ObjInfo;
567     ACPI_OBJECT_LIST        ParamObjects;
568     ACPI_OBJECT             Params[ACPI_METHOD_NUM_ARGS];
569     ACPI_BUFFER             ReturnObj;
570     ACPI_STATUS             Status;
571 
572 
573     Pathname = AcpiNsGetExternalPathname (Node);
574     if (!Pathname)
575     {
576         return (AE_OK);
577     }
578 
579     /* Get the object info for number of method parameters */
580 
581     Status = AcpiGetObjectInfo (Node, &ObjInfo);
582     if (ACPI_FAILURE (Status))
583     {
584         ACPI_FREE (Pathname);
585         return (Status);
586     }
587 
588     ParamObjects.Pointer = NULL;
589     ParamObjects.Count   = 0;
590 
591     if (ObjInfo->Type == ACPI_TYPE_METHOD)
592     {
593         /* Setup default parameters */
594 
595         for (i = 0; i < ObjInfo->ParamCount; i++)
596         {
597             Params[i].Type           = ACPI_TYPE_INTEGER;
598             Params[i].Integer.Value  = 1;
599         }
600 
601         ParamObjects.Pointer     = Params;
602         ParamObjects.Count       = ObjInfo->ParamCount;
603     }
604 
605     ACPI_FREE (ObjInfo);
606     ReturnObj.Pointer = NULL;
607     ReturnObj.Length = ACPI_ALLOCATE_BUFFER;
608 
609     /* Do the actual method execution */
610 
611     AcpiGbl_MethodExecuting = TRUE;
612 
613     Status = AcpiEvaluateObject (Node, NULL, &ParamObjects, &ReturnObj);
614     AcpiGbl_MethodExecuting = FALSE;
615 
616     AcpiOsPrintf ("%-32s returned %s\n", Pathname, AcpiFormatException (Status));
617     if (ReturnObj.Length)
618     {
619         AcpiOsPrintf ("Evaluation of %s returned object %p, "
620             "external buffer length %X\n",
621             Pathname, ReturnObj.Pointer, (UINT32) ReturnObj.Length);
622 
623         AcpiDbDumpExternalObject (ReturnObj.Pointer, 1);
624         AcpiOsPrintf ("\n");
625     }
626 
627     ACPI_FREE (Pathname);
628 
629     /* Ignore status from method execution */
630 
631     return (AE_OK);
632 
633     /* Update count, check if we have executed enough methods */
634 
635 }
636 
637 /*******************************************************************************
638  *
639  * FUNCTION:    AcpiDbWalkForExecute
640  *
641  * PARAMETERS:  Callback from WalkNamespace
642  *
643  * RETURN:      Status
644  *
645  * DESCRIPTION: Batch execution function. Evaluates all "predefined" objects --
646  *              the nameseg begins with an underscore.
647  *
648  ******************************************************************************/
649 
650 static ACPI_STATUS
651 AcpiDbWalkForExecute (
652     ACPI_HANDLE             ObjHandle,
653     UINT32                  NestingLevel,
654     void                    *Context,
655     void                    **ReturnValue)
656 {
657     ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
658     ACPI_DB_EXECUTE_WALK    *Info = (ACPI_DB_EXECUTE_WALK *) Context;
659     ACPI_STATUS             Status;
660     const ACPI_PREDEFINED_INFO *Predefined;
661 
662 
663     Predefined = AcpiUtMatchPredefinedMethod (Node->Name.Ascii);
664     if (!Predefined)
665     {
666         return (AE_OK);
667     }
668 
669     if (Node->Type == ACPI_TYPE_LOCAL_SCOPE)
670     {
671         return (AE_OK);
672     }
673 
674     AcpiDbEvaluateObject (Node);
675 
676     /* Ignore status from object evaluation */
677 
678     Status = AE_OK;
679 
680     /* Update count, check if we have executed enough methods */
681 
682     Info->Count++;
683     if (Info->Count >= Info->MaxCount)
684     {
685         Status = AE_CTRL_TERMINATE;
686     }
687 
688     return (Status);
689 }
690 
691 
692 /*******************************************************************************
693  *
694  * FUNCTION:    AcpiDbWalkForExecuteAll
695  *
696  * PARAMETERS:  Callback from WalkNamespace
697  *
698  * RETURN:      Status
699  *
700  * DESCRIPTION: Batch execution function. Evaluates all objects whose path ends
701  *              with the nameseg "Info->NameSeg". Used for the "ALL" command.
702  *
703  ******************************************************************************/
704 
705 static ACPI_STATUS
706 AcpiDbWalkForExecuteAll (
707     ACPI_HANDLE             ObjHandle,
708     UINT32                  NestingLevel,
709     void                    *Context,
710     void                    **ReturnValue)
711 {
712     ACPI_NAMESPACE_NODE     *Node = (ACPI_NAMESPACE_NODE *) ObjHandle;
713     ACPI_DB_EXECUTE_WALK    *Info = (ACPI_DB_EXECUTE_WALK *) Context;
714     ACPI_STATUS             Status;
715 
716 
717     if (!ACPI_COMPARE_NAMESEG (Node->Name.Ascii, Info->NameSeg))
718     {
719         return (AE_OK);
720     }
721 
722     if (Node->Type == ACPI_TYPE_LOCAL_SCOPE)
723     {
724         return (AE_OK);
725     }
726 
727     /* Now evaluate the input object (node) */
728 
729     AcpiDbEvaluateObject (Node);
730 
731     /* Ignore status from method execution */
732 
733     Status = AE_OK;
734 
735     /* Update count of executed methods/objects */
736 
737     Info->Count++;
738     return (Status);
739 }
740 
741 
742 /*******************************************************************************
743  *
744  * FUNCTION:    AcpiDbEvaluatePredefinedNames
745  *
746  * PARAMETERS:  None
747  *
748  * RETURN:      None
749  *
750  * DESCRIPTION: Namespace batch execution. Execute predefined names in the
751  *              namespace, up to the max count, if specified.
752  *
753  ******************************************************************************/
754 
755 void
756 AcpiDbEvaluatePredefinedNames (
757     void)
758 {
759     ACPI_DB_EXECUTE_WALK    Info;
760 
761 
762     Info.Count = 0;
763     Info.MaxCount = ACPI_UINT32_MAX;
764 
765     /* Search all nodes in namespace */
766 
767     (void) AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
768                 AcpiDbWalkForExecute, NULL, (void *) &Info, NULL);
769 
770     AcpiOsPrintf ("Evaluated %u predefined names in the namespace\n", Info.Count);
771 }
772 
773 
774 /*******************************************************************************
775  *
776  * FUNCTION:    AcpiDbEvaluateAll
777  *
778  * PARAMETERS:  NoneAcpiGbl_DbMethodInfo
779  *
780  * RETURN:      None
781  *
782  * DESCRIPTION: Namespace batch execution. Implements the "ALL" command.
783  *              Execute all namepaths whose final nameseg matches the
784  *              input nameseg.
785  *
786  ******************************************************************************/
787 
788 void
789 AcpiDbEvaluateAll (
790     char                    *NameSeg)
791 {
792     ACPI_DB_EXECUTE_WALK    Info;
793 
794 
795     Info.Count = 0;
796     Info.MaxCount = ACPI_UINT32_MAX;
797     ACPI_COPY_NAMESEG (Info.NameSeg, NameSeg);
798     Info.NameSeg[ACPI_NAMESEG_SIZE] = 0;
799 
800     /* Search all nodes in namespace */
801 
802     (void) AcpiWalkNamespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
803                 AcpiDbWalkForExecuteAll, NULL, (void *) &Info, NULL);
804 
805     AcpiOsPrintf ("Evaluated %u names in the namespace\n", Info.Count);
806 }
807