xref: /freebsd/sys/contrib/dev/acpica/components/debugger/dbdisply.c (revision 722b16673c40aedf280895f2f2f676bb494518d7)
1 /*******************************************************************************
2  *
3  * Module Name: dbdisply - debug display commands
4  *
5  ******************************************************************************/
6 
7 /******************************************************************************
8  *
9  * 1. Copyright Notice
10  *
11  * Some or all of this work - Copyright (c) 1999 - 2023, 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/amlcode.h>
155 #include <contrib/dev/acpica/include/acdispat.h>
156 #include <contrib/dev/acpica/include/acnamesp.h>
157 #include <contrib/dev/acpica/include/acparser.h>
158 #include <contrib/dev/acpica/include/acinterp.h>
159 #include <contrib/dev/acpica/include/acevents.h>
160 #include <contrib/dev/acpica/include/acdebug.h>
161 
162 
163 #define _COMPONENT          ACPI_CA_DEBUGGER
164         ACPI_MODULE_NAME    ("dbdisply")
165 
166 /* Local prototypes */
167 
168 static void
169 AcpiDbDumpParserDescriptor (
170     ACPI_PARSE_OBJECT       *Op);
171 
172 static void *
173 AcpiDbGetPointer (
174     void                    *Target);
175 
176 static ACPI_STATUS
177 AcpiDbDisplayNonRootHandlers (
178     ACPI_HANDLE             ObjHandle,
179     UINT32                  NestingLevel,
180     void                    *Context,
181     void                    **ReturnValue);
182 
183 /*
184  * System handler information.
185  * Used for Handlers command, in AcpiDbDisplayHandlers.
186  */
187 #define ACPI_PREDEFINED_PREFIX          "%25s (%.2X) : "
188 #define ACPI_HANDLER_NAME_STRING               "%30s : "
189 #define ACPI_HANDLER_PRESENT_STRING                    "%-9s (%p)\n"
190 #define ACPI_HANDLER_PRESENT_STRING2                   "%-9s (%p)"
191 #define ACPI_HANDLER_NOT_PRESENT_STRING                "%-9s\n"
192 
193 /* All predefined Address Space IDs */
194 
195 static ACPI_ADR_SPACE_TYPE  AcpiGbl_SpaceIdList[] =
196 {
197     ACPI_ADR_SPACE_SYSTEM_MEMORY,
198     ACPI_ADR_SPACE_SYSTEM_IO,
199     ACPI_ADR_SPACE_PCI_CONFIG,
200     ACPI_ADR_SPACE_EC,
201     ACPI_ADR_SPACE_SMBUS,
202     ACPI_ADR_SPACE_CMOS,
203     ACPI_ADR_SPACE_PCI_BAR_TARGET,
204     ACPI_ADR_SPACE_IPMI,
205     ACPI_ADR_SPACE_GPIO,
206     ACPI_ADR_SPACE_GSBUS,
207     ACPI_ADR_SPACE_PLATFORM_COMM,
208     ACPI_ADR_SPACE_PLATFORM_RT,
209     ACPI_ADR_SPACE_DATA_TABLE,
210     ACPI_ADR_SPACE_FIXED_HARDWARE
211 };
212 
213 /* Global handler information */
214 
215 typedef struct acpi_handler_info
216 {
217     void                    *Handler;
218     char                    *Name;
219 
220 } ACPI_HANDLER_INFO;
221 
222 static ACPI_HANDLER_INFO    AcpiGbl_HandlerList[] =
223 {
224     {&AcpiGbl_GlobalNotify[0].Handler,  "System Notifications"},
225     {&AcpiGbl_GlobalNotify[1].Handler,  "Device Notifications"},
226     {&AcpiGbl_TableHandler,             "ACPI Table Events"},
227     {&AcpiGbl_ExceptionHandler,         "Control Method Exceptions"},
228     {&AcpiGbl_InterfaceHandler,         "OSI Invocations"}
229 };
230 
231 
232 /*******************************************************************************
233  *
234  * FUNCTION:    AcpiDbGetPointer
235  *
236  * PARAMETERS:  Target          - Pointer to string to be converted
237  *
238  * RETURN:      Converted pointer
239  *
240  * DESCRIPTION: Convert an ascii pointer value to a real value
241  *
242  ******************************************************************************/
243 
244 static void *
AcpiDbGetPointer(void * Target)245 AcpiDbGetPointer (
246     void                    *Target)
247 {
248     void                    *ObjPtr;
249     ACPI_SIZE               Address;
250 
251 
252     Address = strtoul (Target, NULL, 16);
253     ObjPtr = ACPI_TO_POINTER (Address);
254     return (ObjPtr);
255 }
256 
257 
258 /*******************************************************************************
259  *
260  * FUNCTION:    AcpiDbDumpParserDescriptor
261  *
262  * PARAMETERS:  Op              - A parser Op descriptor
263  *
264  * RETURN:      None
265  *
266  * DESCRIPTION: Display a formatted parser object
267  *
268  ******************************************************************************/
269 
270 static void
AcpiDbDumpParserDescriptor(ACPI_PARSE_OBJECT * Op)271 AcpiDbDumpParserDescriptor (
272     ACPI_PARSE_OBJECT       *Op)
273 {
274     const ACPI_OPCODE_INFO  *Info;
275 
276 
277     Info = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
278 
279     AcpiOsPrintf ("Parser Op Descriptor:\n");
280     AcpiOsPrintf ("%20.20s : %4.4X\n", "Opcode", Op->Common.AmlOpcode);
281 
282     ACPI_DEBUG_ONLY_MEMBERS (AcpiOsPrintf ("%20.20s : %s\n", "Opcode Name",
283         Info->Name));
284 
285     AcpiOsPrintf ("%20.20s : %p\n", "Value/ArgList", Op->Common.Value.Arg);
286     AcpiOsPrintf ("%20.20s : %p\n", "Parent", Op->Common.Parent);
287     AcpiOsPrintf ("%20.20s : %p\n", "NextOp", Op->Common.Next);
288 }
289 
290 
291 /*******************************************************************************
292  *
293  * FUNCTION:    AcpiDbDecodeAndDisplayObject
294  *
295  * PARAMETERS:  Target          - String with object to be displayed. Names
296  *                                and hex pointers are supported.
297  *              OutputType      - Byte, Word, Dword, or Qword (B|W|D|Q)
298  *
299  * RETURN:      None
300  *
301  * DESCRIPTION: Display a formatted ACPI object
302  *
303  ******************************************************************************/
304 
305 void
AcpiDbDecodeAndDisplayObject(char * Target,char * OutputType)306 AcpiDbDecodeAndDisplayObject (
307     char                    *Target,
308     char                    *OutputType)
309 {
310     void                    *ObjPtr;
311     ACPI_NAMESPACE_NODE     *Node;
312     ACPI_OPERAND_OBJECT     *ObjDesc;
313     UINT32                  Display = DB_BYTE_DISPLAY;
314     char                    Buffer[80];
315     ACPI_BUFFER             RetBuf;
316     ACPI_STATUS             Status;
317     UINT32                  Size;
318 
319 
320     if (!Target)
321     {
322         return;
323     }
324 
325     /* Decode the output type */
326 
327     if (OutputType)
328     {
329         AcpiUtStrupr (OutputType);
330         if (OutputType[0] == 'W')
331         {
332             Display = DB_WORD_DISPLAY;
333         }
334         else if (OutputType[0] == 'D')
335         {
336             Display = DB_DWORD_DISPLAY;
337         }
338         else if (OutputType[0] == 'Q')
339         {
340             Display = DB_QWORD_DISPLAY;
341         }
342     }
343 
344     RetBuf.Length = sizeof (Buffer);
345     RetBuf.Pointer = Buffer;
346 
347     /* Differentiate between a number and a name */
348 
349     if ((Target[0] >= 0x30) && (Target[0] <= 0x39))
350     {
351         ObjPtr = AcpiDbGetPointer (Target);
352         if (!AcpiOsReadable (ObjPtr, 16))
353         {
354             AcpiOsPrintf (
355                 "Address %p is invalid in this address space\n",
356                 ObjPtr);
357             return;
358         }
359 
360         /* Decode the object type */
361 
362         switch (ACPI_GET_DESCRIPTOR_TYPE (ObjPtr))
363         {
364         case ACPI_DESC_TYPE_NAMED:
365 
366             /* This is a namespace Node */
367 
368             if (!AcpiOsReadable (ObjPtr, sizeof (ACPI_NAMESPACE_NODE)))
369             {
370                 AcpiOsPrintf (
371                     "Cannot read entire Named object at address %p\n",
372                     ObjPtr);
373                 return;
374             }
375 
376             Node = ObjPtr;
377             goto DumpNode;
378 
379         case ACPI_DESC_TYPE_OPERAND:
380 
381             /* This is a ACPI OPERAND OBJECT */
382 
383             if (!AcpiOsReadable (ObjPtr, sizeof (ACPI_OPERAND_OBJECT)))
384             {
385                 AcpiOsPrintf (
386                     "Cannot read entire ACPI object at address %p\n",
387                     ObjPtr);
388                 return;
389             }
390 
391             AcpiUtDebugDumpBuffer (ObjPtr, sizeof (ACPI_OPERAND_OBJECT),
392                 Display, ACPI_UINT32_MAX);
393             AcpiExDumpObjectDescriptor (ObjPtr, 1);
394             break;
395 
396         case ACPI_DESC_TYPE_PARSER:
397 
398             /* This is a Parser Op object */
399 
400             if (!AcpiOsReadable (ObjPtr, sizeof (ACPI_PARSE_OBJECT)))
401             {
402                 AcpiOsPrintf (
403                     "Cannot read entire Parser object at address %p\n",
404                     ObjPtr);
405                 return;
406             }
407 
408             AcpiUtDebugDumpBuffer (ObjPtr, sizeof (ACPI_PARSE_OBJECT),
409                 Display, ACPI_UINT32_MAX);
410             AcpiDbDumpParserDescriptor ((ACPI_PARSE_OBJECT *) ObjPtr);
411             break;
412 
413         default:
414 
415             /* Is not a recognizable object */
416 
417             AcpiOsPrintf (
418                 "Not a known ACPI internal object, descriptor type %2.2X\n",
419                 ACPI_GET_DESCRIPTOR_TYPE (ObjPtr));
420 
421             Size = 16;
422             if (AcpiOsReadable (ObjPtr, 64))
423             {
424                 Size = 64;
425             }
426 
427             /* Just dump some memory */
428 
429             AcpiUtDebugDumpBuffer (ObjPtr, Size, Display, ACPI_UINT32_MAX);
430             break;
431         }
432 
433         return;
434     }
435 
436     /* The parameter is a name string that must be resolved to a Named obj */
437 
438     Node = AcpiDbLocalNsLookup (Target);
439     if (!Node)
440     {
441         return;
442     }
443 
444 
445 DumpNode:
446     /* Now dump the NS node */
447 
448     Status = AcpiGetName (Node, ACPI_FULL_PATHNAME_NO_TRAILING, &RetBuf);
449     if (ACPI_FAILURE (Status))
450     {
451         AcpiOsPrintf ("Could not convert name to pathname\n");
452     }
453 
454     else
455     {
456         AcpiOsPrintf ("Object %p: Namespace Node - Pathname: %s\n",
457             Node, (char *) RetBuf.Pointer);
458     }
459 
460     if (!AcpiOsReadable (Node, sizeof (ACPI_NAMESPACE_NODE)))
461     {
462         AcpiOsPrintf ("Invalid Named object at address %p\n", Node);
463         return;
464     }
465 
466     AcpiUtDebugDumpBuffer ((void *) Node, sizeof (ACPI_NAMESPACE_NODE),
467         Display, ACPI_UINT32_MAX);
468     AcpiExDumpNamespaceNode (Node, 1);
469 
470     ObjDesc = AcpiNsGetAttachedObject (Node);
471     if (ObjDesc)
472     {
473         AcpiOsPrintf ("\nAttached Object %p:", ObjDesc);
474         if (!AcpiOsReadable (ObjDesc, sizeof (ACPI_OPERAND_OBJECT)))
475         {
476             AcpiOsPrintf ("Invalid internal ACPI Object at address %p\n",
477                 ObjDesc);
478             return;
479         }
480 
481         if (ACPI_GET_DESCRIPTOR_TYPE (
482             ((ACPI_NAMESPACE_NODE *) ObjDesc)) == ACPI_DESC_TYPE_NAMED)
483         {
484             AcpiOsPrintf (" Namespace Node - ");
485             Status = AcpiGetName ((ACPI_NAMESPACE_NODE *) ObjDesc,
486                 ACPI_FULL_PATHNAME_NO_TRAILING, &RetBuf);
487             if (ACPI_FAILURE (Status))
488             {
489                 AcpiOsPrintf ("Could not convert name to pathname\n");
490             }
491             else
492             {
493                 AcpiOsPrintf ("Pathname: %s",
494                     (char *) RetBuf.Pointer);
495             }
496 
497             AcpiOsPrintf ("\n");
498             AcpiUtDebugDumpBuffer ((void *) ObjDesc,
499                 sizeof (ACPI_NAMESPACE_NODE), Display, ACPI_UINT32_MAX);
500         }
501         else
502         {
503             AcpiOsPrintf ("\n");
504             AcpiUtDebugDumpBuffer ((void *) ObjDesc,
505                 sizeof (ACPI_OPERAND_OBJECT), Display, ACPI_UINT32_MAX);
506         }
507 
508         AcpiExDumpObjectDescriptor (ObjDesc, 1);
509     }
510 }
511 
512 
513 /*******************************************************************************
514  *
515  * FUNCTION:    AcpiDbDisplayMethodInfo
516  *
517  * PARAMETERS:  StartOp         - Root of the control method parse tree
518  *
519  * RETURN:      None
520  *
521  * DESCRIPTION: Display information about the current method
522  *
523  ******************************************************************************/
524 
525 void
AcpiDbDisplayMethodInfo(ACPI_PARSE_OBJECT * StartOp)526 AcpiDbDisplayMethodInfo (
527     ACPI_PARSE_OBJECT       *StartOp)
528 {
529     ACPI_WALK_STATE         *WalkState;
530     ACPI_OPERAND_OBJECT     *ObjDesc;
531     ACPI_NAMESPACE_NODE     *Node;
532     ACPI_PARSE_OBJECT       *RootOp;
533     ACPI_PARSE_OBJECT       *Op;
534     const ACPI_OPCODE_INFO  *OpInfo;
535     UINT32                  NumOps = 0;
536     UINT32                  NumOperands = 0;
537     UINT32                  NumOperators = 0;
538     UINT32                  NumRemainingOps = 0;
539     UINT32                  NumRemainingOperands = 0;
540     UINT32                  NumRemainingOperators = 0;
541     BOOLEAN                 CountRemaining = FALSE;
542 
543 
544     WalkState = AcpiDsGetCurrentWalkState (AcpiGbl_CurrentWalkList);
545     if (!WalkState)
546     {
547         AcpiOsPrintf ("There is no method currently executing\n");
548         return;
549     }
550 
551     ObjDesc = WalkState->MethodDesc;
552     Node = WalkState->MethodNode;
553 
554     AcpiOsPrintf ("Currently executing control method is [%4.4s]\n",
555         AcpiUtGetNodeName (Node));
556     AcpiOsPrintf ("%X Arguments, SyncLevel = %X\n",
557         (UINT32) ObjDesc->Method.ParamCount,
558         (UINT32) ObjDesc->Method.SyncLevel);
559 
560     RootOp = StartOp;
561     while (RootOp->Common.Parent)
562     {
563         RootOp = RootOp->Common.Parent;
564     }
565 
566     Op = RootOp;
567 
568     while (Op)
569     {
570         if (Op == StartOp)
571         {
572             CountRemaining = TRUE;
573         }
574 
575         NumOps++;
576         if (CountRemaining)
577         {
578             NumRemainingOps++;
579         }
580 
581         /* Decode the opcode */
582 
583         OpInfo = AcpiPsGetOpcodeInfo (Op->Common.AmlOpcode);
584         switch (OpInfo->Class)
585         {
586         case AML_CLASS_ARGUMENT:
587 
588             if (CountRemaining)
589             {
590                 NumRemainingOperands++;
591             }
592 
593             NumOperands++;
594             break;
595 
596         case AML_CLASS_UNKNOWN:
597 
598             /* Bad opcode or ASCII character */
599 
600             continue;
601 
602         default:
603 
604             if (CountRemaining)
605             {
606                 NumRemainingOperators++;
607             }
608 
609             NumOperators++;
610             break;
611         }
612 
613         Op = AcpiPsGetDepthNext (StartOp, Op);
614     }
615 
616     AcpiOsPrintf (
617         "Method contains:       %X AML Opcodes - %X Operators, %X Operands\n",
618         NumOps, NumOperators, NumOperands);
619 
620     AcpiOsPrintf (
621         "Remaining to execute:  %X AML Opcodes - %X Operators, %X Operands\n",
622         NumRemainingOps, NumRemainingOperators, NumRemainingOperands);
623 }
624 
625 
626 /*******************************************************************************
627  *
628  * FUNCTION:    AcpiDbDisplayLocals
629  *
630  * PARAMETERS:  None
631  *
632  * RETURN:      None
633  *
634  * DESCRIPTION: Display all locals for the currently running control method
635  *
636  ******************************************************************************/
637 
638 void
AcpiDbDisplayLocals(void)639 AcpiDbDisplayLocals (
640     void)
641 {
642     ACPI_WALK_STATE         *WalkState;
643 
644 
645     WalkState = AcpiDsGetCurrentWalkState (AcpiGbl_CurrentWalkList);
646     if (!WalkState)
647     {
648         AcpiOsPrintf ("There is no method currently executing\n");
649         return;
650     }
651 
652     AcpiDbDecodeLocals (WalkState);
653 }
654 
655 
656 /*******************************************************************************
657  *
658  * FUNCTION:    AcpiDbDisplayArguments
659  *
660  * PARAMETERS:  None
661  *
662  * RETURN:      None
663  *
664  * DESCRIPTION: Display all arguments for the currently running control method
665  *
666  ******************************************************************************/
667 
668 void
AcpiDbDisplayArguments(void)669 AcpiDbDisplayArguments (
670     void)
671 {
672     ACPI_WALK_STATE         *WalkState;
673 
674 
675     WalkState = AcpiDsGetCurrentWalkState (AcpiGbl_CurrentWalkList);
676     if (!WalkState)
677     {
678         AcpiOsPrintf ("There is no method currently executing\n");
679         return;
680     }
681 
682     AcpiDbDecodeArguments (WalkState);
683 }
684 
685 
686 /*******************************************************************************
687  *
688  * FUNCTION:    AcpiDbDisplayResults
689  *
690  * PARAMETERS:  None
691  *
692  * RETURN:      None
693  *
694  * DESCRIPTION: Display current contents of a method result stack
695  *
696  ******************************************************************************/
697 
698 void
AcpiDbDisplayResults(void)699 AcpiDbDisplayResults (
700     void)
701 {
702     UINT32                  i;
703     ACPI_WALK_STATE         *WalkState;
704     ACPI_OPERAND_OBJECT     *ObjDesc;
705     UINT32                  ResultCount = 0;
706     ACPI_NAMESPACE_NODE     *Node;
707     ACPI_GENERIC_STATE      *Frame;
708     UINT32                  Index; /* Index onto current frame */
709 
710 
711     WalkState = AcpiDsGetCurrentWalkState (AcpiGbl_CurrentWalkList);
712     if (!WalkState)
713     {
714         AcpiOsPrintf ("There is no method currently executing\n");
715         return;
716     }
717 
718     Node  = WalkState->MethodNode;
719 
720     if (WalkState->Results)
721     {
722         ResultCount = WalkState->ResultCount;
723     }
724 
725     AcpiOsPrintf ("Method [%4.4s] has %X stacked result objects\n",
726         AcpiUtGetNodeName (Node), ResultCount);
727 
728     /* From the top element of result stack */
729 
730     Frame = WalkState->Results;
731     Index = (ResultCount - 1) % ACPI_RESULTS_FRAME_OBJ_NUM;
732 
733     for (i = 0; i < ResultCount; i++)
734     {
735         ObjDesc = Frame->Results.ObjDesc[Index];
736         AcpiOsPrintf ("Result%u: ", i);
737         AcpiDbDisplayInternalObject (ObjDesc, WalkState);
738 
739         if (Index == 0)
740         {
741             Frame = Frame->Results.Next;
742             Index = ACPI_RESULTS_FRAME_OBJ_NUM;
743         }
744 
745         Index--;
746     }
747 }
748 
749 
750 /*******************************************************************************
751  *
752  * FUNCTION:    AcpiDbDisplayCallingTree
753  *
754  * PARAMETERS:  None
755  *
756  * RETURN:      None
757  *
758  * DESCRIPTION: Display current calling tree of nested control methods
759  *
760  ******************************************************************************/
761 
762 void
AcpiDbDisplayCallingTree(void)763 AcpiDbDisplayCallingTree (
764     void)
765 {
766     ACPI_WALK_STATE         *WalkState;
767     ACPI_NAMESPACE_NODE     *Node;
768 
769 
770     WalkState = AcpiDsGetCurrentWalkState (AcpiGbl_CurrentWalkList);
771     if (!WalkState)
772     {
773         AcpiOsPrintf ("There is no method currently executing\n");
774         return;
775     }
776 
777     AcpiOsPrintf ("Current Control Method Call Tree\n");
778 
779     while (WalkState)
780     {
781         Node = WalkState->MethodNode;
782         AcpiOsPrintf ("    [%4.4s]\n", AcpiUtGetNodeName (Node));
783 
784         WalkState = WalkState->Next;
785     }
786 }
787 
788 
789 /*******************************************************************************
790  *
791  * FUNCTION:    AcpiDbDisplayObjectType
792  *
793  * PARAMETERS:  ObjectArg       - User entered NS node handle
794  *
795  * RETURN:      None
796  *
797  * DESCRIPTION: Display type of an arbitrary NS node
798  *
799  ******************************************************************************/
800 
801 void
AcpiDbDisplayObjectType(char * ObjectArg)802 AcpiDbDisplayObjectType (
803     char                    *ObjectArg)
804 {
805     ACPI_SIZE               Arg;
806     ACPI_HANDLE             Handle;
807     ACPI_DEVICE_INFO        *Info;
808     ACPI_STATUS             Status;
809     UINT32                  i;
810 
811 
812     Arg = strtoul (ObjectArg, NULL, 16);
813     Handle = ACPI_TO_POINTER (Arg);
814 
815     Status = AcpiGetObjectInfo (Handle, &Info);
816     if (ACPI_FAILURE (Status))
817     {
818         AcpiOsPrintf ("Could not get object info, %s\n",
819             AcpiFormatException (Status));
820         return;
821     }
822 
823     AcpiOsPrintf ("ADR: %8.8X%8.8X, Flags: %X\n",
824         ACPI_FORMAT_UINT64 (Info->Address), Info->Flags);
825 
826     AcpiOsPrintf ("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n",
827         Info->HighestDstates[0], Info->HighestDstates[1],
828         Info->HighestDstates[2], Info->HighestDstates[3]);
829 
830     AcpiOsPrintf ("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n",
831         Info->LowestDstates[0], Info->LowestDstates[1],
832         Info->LowestDstates[2], Info->LowestDstates[3],
833         Info->LowestDstates[4]);
834 
835     if (Info->Valid & ACPI_VALID_HID)
836     {
837         AcpiOsPrintf ("HID: %s\n", Info->HardwareId.String);
838     }
839 
840     if (Info->Valid & ACPI_VALID_UID)
841     {
842         AcpiOsPrintf ("UID: %s\n", Info->UniqueId.String);
843     }
844 
845     if (Info->Valid & ACPI_VALID_CID)
846     {
847         for (i = 0; i < Info->CompatibleIdList.Count; i++)
848         {
849             AcpiOsPrintf ("CID %u: %s\n", i,
850                 Info->CompatibleIdList.Ids[i].String);
851         }
852     }
853 
854     ACPI_FREE (Info);
855 }
856 
857 
858 /*******************************************************************************
859  *
860  * FUNCTION:    AcpiDbDisplayResultObject
861  *
862  * PARAMETERS:  ObjDesc         - Object to be displayed
863  *              WalkState       - Current walk state
864  *
865  * RETURN:      None
866  *
867  * DESCRIPTION: Display the result of an AML opcode
868  *
869  * Note: Currently only displays the result object if we are single stepping.
870  * However, this output may be useful in other contexts and could be enabled
871  * to do so if needed.
872  *
873  ******************************************************************************/
874 
875 void
AcpiDbDisplayResultObject(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_WALK_STATE * WalkState)876 AcpiDbDisplayResultObject (
877     ACPI_OPERAND_OBJECT     *ObjDesc,
878     ACPI_WALK_STATE         *WalkState)
879 {
880 
881 #ifndef ACPI_APPLICATION
882     if (AcpiGbl_DbThreadId != AcpiOsGetThreadId())
883     {
884         return;
885     }
886 #endif
887 
888     /* Only display if single stepping */
889 
890     if (!AcpiGbl_CmSingleStep)
891     {
892         return;
893     }
894 
895     AcpiOsPrintf ("ResultObj: ");
896     AcpiDbDisplayInternalObject (ObjDesc, WalkState);
897     AcpiOsPrintf ("\n");
898 }
899 
900 
901 /*******************************************************************************
902  *
903  * FUNCTION:    AcpiDbDisplayArgumentObject
904  *
905  * PARAMETERS:  ObjDesc         - Object to be displayed
906  *              WalkState       - Current walk state
907  *
908  * RETURN:      None
909  *
910  * DESCRIPTION: Display the result of an AML opcode
911  *
912  ******************************************************************************/
913 
914 void
AcpiDbDisplayArgumentObject(ACPI_OPERAND_OBJECT * ObjDesc,ACPI_WALK_STATE * WalkState)915 AcpiDbDisplayArgumentObject (
916     ACPI_OPERAND_OBJECT     *ObjDesc,
917     ACPI_WALK_STATE         *WalkState)
918 {
919 
920 #ifndef ACPI_APPLICATION
921     if (AcpiGbl_DbThreadId != AcpiOsGetThreadId())
922     {
923         return;
924     }
925 #endif
926 
927     if (!AcpiGbl_CmSingleStep)
928     {
929         return;
930     }
931 
932     AcpiOsPrintf ("ArgObj:    ");
933     AcpiDbDisplayInternalObject (ObjDesc, WalkState);
934 }
935 
936 
937 #if (!ACPI_REDUCED_HARDWARE)
938 /*******************************************************************************
939  *
940  * FUNCTION:    AcpiDbDisplayGpes
941  *
942  * PARAMETERS:  None
943  *
944  * RETURN:      None
945  *
946  * DESCRIPTION: Display the current GPE structures
947  *
948  ******************************************************************************/
949 
950 void
AcpiDbDisplayGpes(void)951 AcpiDbDisplayGpes (
952     void)
953 {
954     ACPI_GPE_BLOCK_INFO     *GpeBlock;
955     ACPI_GPE_XRUPT_INFO     *GpeXruptInfo;
956     ACPI_GPE_EVENT_INFO     *GpeEventInfo;
957     ACPI_GPE_REGISTER_INFO  *GpeRegisterInfo;
958     char                    *GpeType;
959     ACPI_GPE_NOTIFY_INFO    *Notify;
960     UINT32                  GpeIndex;
961     UINT32                  Block = 0;
962     UINT32                  i;
963     UINT32                  j;
964     UINT32                  Count;
965     char                    Buffer[80];
966     ACPI_BUFFER             RetBuf;
967     ACPI_STATUS             Status;
968 
969 
970     RetBuf.Length = sizeof (Buffer);
971     RetBuf.Pointer = Buffer;
972 
973     Block = 0;
974 
975     /* Walk the GPE lists */
976 
977     GpeXruptInfo = AcpiGbl_GpeXruptListHead;
978     while (GpeXruptInfo)
979     {
980         GpeBlock = GpeXruptInfo->GpeBlockListHead;
981         while (GpeBlock)
982         {
983             Status = AcpiGetName (GpeBlock->Node,
984                 ACPI_FULL_PATHNAME_NO_TRAILING, &RetBuf);
985             if (ACPI_FAILURE (Status))
986             {
987                 AcpiOsPrintf ("Could not convert name to pathname\n");
988             }
989 
990             if (GpeBlock->Node == AcpiGbl_FadtGpeDevice)
991             {
992                 GpeType = "FADT-defined GPE block";
993             }
994             else
995             {
996                 GpeType = "GPE Block Device";
997             }
998 
999             AcpiOsPrintf (
1000                 "\nBlock %u - Info %p  DeviceNode %p [%s] - %s\n",
1001                 Block, GpeBlock, GpeBlock->Node, Buffer, GpeType);
1002 
1003             AcpiOsPrintf (
1004                 "    Registers:    %u (%u GPEs)\n",
1005                 GpeBlock->RegisterCount, GpeBlock->GpeCount);
1006 
1007             AcpiOsPrintf (
1008                 "    GPE range:    0x%X to 0x%X on interrupt %u\n",
1009                 GpeBlock->BlockBaseNumber,
1010                 GpeBlock->BlockBaseNumber + (GpeBlock->GpeCount - 1),
1011                 GpeXruptInfo->InterruptNumber);
1012 
1013             AcpiOsPrintf (
1014                 "    RegisterInfo: %p  Status %8.8X%8.8X Enable %8.8X%8.8X\n",
1015                 GpeBlock->RegisterInfo,
1016                 ACPI_FORMAT_UINT64 (
1017                     GpeBlock->RegisterInfo->StatusAddress.Address),
1018                 ACPI_FORMAT_UINT64 (
1019                     GpeBlock->RegisterInfo->EnableAddress.Address));
1020 
1021             AcpiOsPrintf ("    EventInfo:    %p\n", GpeBlock->EventInfo);
1022 
1023             /* Examine each GPE Register within the block */
1024 
1025             for (i = 0; i < GpeBlock->RegisterCount; i++)
1026             {
1027                 GpeRegisterInfo = &GpeBlock->RegisterInfo[i];
1028 
1029                 AcpiOsPrintf (
1030                     "    Reg %u: (GPE %.2X-%.2X)  "
1031                     "RunEnable %2.2X WakeEnable %2.2X"
1032                     " Status %8.8X%8.8X Enable %8.8X%8.8X\n",
1033                     i, GpeRegisterInfo->BaseGpeNumber,
1034                     GpeRegisterInfo->BaseGpeNumber +
1035                         (ACPI_GPE_REGISTER_WIDTH - 1),
1036                     GpeRegisterInfo->EnableForRun,
1037                     GpeRegisterInfo->EnableForWake,
1038                     ACPI_FORMAT_UINT64 (
1039                         GpeRegisterInfo->StatusAddress.Address),
1040                     ACPI_FORMAT_UINT64 (
1041                         GpeRegisterInfo->EnableAddress.Address));
1042 
1043                 /* Now look at the individual GPEs in this byte register */
1044 
1045                 for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++)
1046                 {
1047                     GpeIndex = (i * ACPI_GPE_REGISTER_WIDTH) + j;
1048                     GpeEventInfo = &GpeBlock->EventInfo[GpeIndex];
1049 
1050                     if (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags) ==
1051                         ACPI_GPE_DISPATCH_NONE)
1052                     {
1053                         /* This GPE is not used (no method or handler), ignore it */
1054 
1055                         continue;
1056                     }
1057 
1058                     AcpiOsPrintf (
1059                         "        GPE %.2X: %p  RunRefs %2.2X Flags %2.2X (",
1060                         GpeBlock->BlockBaseNumber + GpeIndex, GpeEventInfo,
1061                         GpeEventInfo->RuntimeCount, GpeEventInfo->Flags);
1062 
1063                     /* Decode the flags byte */
1064 
1065                     if (GpeEventInfo->Flags & ACPI_GPE_LEVEL_TRIGGERED)
1066                     {
1067                         AcpiOsPrintf ("Level, ");
1068                     }
1069                     else
1070                     {
1071                         AcpiOsPrintf ("Edge,  ");
1072                     }
1073 
1074                     if (GpeEventInfo->Flags & ACPI_GPE_CAN_WAKE)
1075                     {
1076                         AcpiOsPrintf ("CanWake, ");
1077                     }
1078                     else
1079                     {
1080                         AcpiOsPrintf ("RunOnly, ");
1081                     }
1082 
1083                     switch (ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags))
1084                     {
1085                     case ACPI_GPE_DISPATCH_NONE:
1086 
1087                         AcpiOsPrintf ("NotUsed");
1088                         break;
1089 
1090                     case ACPI_GPE_DISPATCH_METHOD:
1091 
1092                         AcpiOsPrintf ("Method");
1093                         break;
1094 
1095                     case ACPI_GPE_DISPATCH_HANDLER:
1096 
1097                         AcpiOsPrintf ("Handler");
1098                         break;
1099 
1100                     case ACPI_GPE_DISPATCH_NOTIFY:
1101 
1102                         Count = 0;
1103                         Notify = GpeEventInfo->Dispatch.NotifyList;
1104                         while (Notify)
1105                         {
1106                             Count++;
1107                             Notify = Notify->Next;
1108                         }
1109 
1110                         AcpiOsPrintf ("Implicit Notify on %u devices",
1111                             Count);
1112                         break;
1113 
1114                     case ACPI_GPE_DISPATCH_RAW_HANDLER:
1115 
1116                         AcpiOsPrintf ("RawHandler");
1117                         break;
1118 
1119                     default:
1120 
1121                         AcpiOsPrintf ("UNKNOWN: %X",
1122                             ACPI_GPE_DISPATCH_TYPE (GpeEventInfo->Flags));
1123                         break;
1124                     }
1125 
1126                     AcpiOsPrintf (")\n");
1127                 }
1128             }
1129 
1130             Block++;
1131             GpeBlock = GpeBlock->Next;
1132         }
1133 
1134         GpeXruptInfo = GpeXruptInfo->Next;
1135     }
1136 }
1137 #endif /* !ACPI_REDUCED_HARDWARE */
1138 
1139 
1140 /*******************************************************************************
1141  *
1142  * FUNCTION:    AcpiDbDisplayHandlers
1143  *
1144  * PARAMETERS:  None
1145  *
1146  * RETURN:      None
1147  *
1148  * DESCRIPTION: Display the currently installed global handlers
1149  *
1150  ******************************************************************************/
1151 
1152 void
AcpiDbDisplayHandlers(void)1153 AcpiDbDisplayHandlers (
1154     void)
1155 {
1156     ACPI_OPERAND_OBJECT     *ObjDesc;
1157     ACPI_OPERAND_OBJECT     *HandlerObj;
1158     ACPI_ADR_SPACE_TYPE     SpaceId;
1159     UINT32                  i;
1160 
1161 
1162     /* Operation region handlers */
1163 
1164     AcpiOsPrintf ("\nOperation Region Handlers at the namespace root:\n");
1165 
1166     ObjDesc = AcpiNsGetAttachedObject (AcpiGbl_RootNode);
1167     if (ObjDesc)
1168     {
1169         for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_SpaceIdList); i++)
1170         {
1171             SpaceId = AcpiGbl_SpaceIdList[i];
1172 
1173             AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
1174                 AcpiUtGetRegionName ((UINT8) SpaceId), SpaceId);
1175 
1176             HandlerObj = AcpiEvFindRegionHandler (
1177                 SpaceId, ObjDesc->CommonNotify.Handler);
1178             if (HandlerObj)
1179             {
1180                 AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING,
1181                     (HandlerObj->AddressSpace.HandlerFlags &
1182                         ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ?
1183                         "Default" : "User",
1184                     HandlerObj->AddressSpace.Handler);
1185 
1186                 goto FoundHandler;
1187             }
1188 
1189             /* There is no handler for this SpaceId */
1190 
1191             AcpiOsPrintf ("None\n");
1192 
1193         FoundHandler:;
1194         }
1195 
1196         /* Find all handlers for user-defined SpaceIDs */
1197 
1198         HandlerObj = ObjDesc->CommonNotify.Handler;
1199         while (HandlerObj)
1200         {
1201             if (HandlerObj->AddressSpace.SpaceId >= ACPI_USER_REGION_BEGIN)
1202             {
1203                 AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
1204                     "User-defined ID", HandlerObj->AddressSpace.SpaceId);
1205                 AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING,
1206                     (HandlerObj->AddressSpace.HandlerFlags &
1207                         ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ?
1208                         "Default" : "User",
1209                     HandlerObj->AddressSpace.Handler);
1210             }
1211 
1212             HandlerObj = HandlerObj->AddressSpace.Next;
1213         }
1214     }
1215 
1216 #if (!ACPI_REDUCED_HARDWARE)
1217 
1218     /* Fixed event handlers */
1219 
1220     AcpiOsPrintf ("\nFixed Event Handlers:\n");
1221 
1222     for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++)
1223     {
1224         AcpiOsPrintf (ACPI_PREDEFINED_PREFIX, AcpiUtGetEventName (i), i);
1225         if (AcpiGbl_FixedEventHandlers[i].Handler)
1226         {
1227             AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User",
1228                 AcpiGbl_FixedEventHandlers[i].Handler);
1229         }
1230         else
1231         {
1232             AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None");
1233         }
1234     }
1235 
1236 #endif /* !ACPI_REDUCED_HARDWARE */
1237 
1238     /* Miscellaneous global handlers */
1239 
1240     AcpiOsPrintf ("\nMiscellaneous Global Handlers:\n");
1241 
1242     for (i = 0; i < ACPI_ARRAY_LENGTH (AcpiGbl_HandlerList); i++)
1243     {
1244         AcpiOsPrintf (ACPI_HANDLER_NAME_STRING,
1245             AcpiGbl_HandlerList[i].Name);
1246 
1247         if (AcpiGbl_HandlerList[i].Handler)
1248         {
1249             AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING, "User",
1250                 AcpiGbl_HandlerList[i].Handler);
1251         }
1252         else
1253         {
1254             AcpiOsPrintf (ACPI_HANDLER_NOT_PRESENT_STRING, "None");
1255         }
1256     }
1257 
1258 
1259     /* Other handlers that are installed throughout the namespace */
1260 
1261     AcpiOsPrintf ("\nOperation Region Handlers for specific devices:\n");
1262 
1263     (void) AcpiWalkNamespace (ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
1264         ACPI_UINT32_MAX, AcpiDbDisplayNonRootHandlers,
1265         NULL, NULL, NULL);
1266 }
1267 
1268 
1269 /*******************************************************************************
1270  *
1271  * FUNCTION:    AcpiDbDisplayNonRootHandlers
1272  *
1273  * PARAMETERS:  ACPI_WALK_CALLBACK
1274  *
1275  * RETURN:      Status
1276  *
1277  * DESCRIPTION: Display information about all handlers installed for a
1278  *              device object.
1279  *
1280  ******************************************************************************/
1281 
1282 static ACPI_STATUS
AcpiDbDisplayNonRootHandlers(ACPI_HANDLE ObjHandle,UINT32 NestingLevel,void * Context,void ** ReturnValue)1283 AcpiDbDisplayNonRootHandlers (
1284     ACPI_HANDLE             ObjHandle,
1285     UINT32                  NestingLevel,
1286     void                    *Context,
1287     void                    **ReturnValue)
1288 {
1289     ACPI_NAMESPACE_NODE     *Node = ACPI_CAST_PTR (ACPI_NAMESPACE_NODE, ObjHandle);
1290     ACPI_OPERAND_OBJECT     *ObjDesc;
1291     ACPI_OPERAND_OBJECT     *HandlerObj;
1292     char                    *Pathname;
1293 
1294 
1295     ObjDesc = AcpiNsGetAttachedObject (Node);
1296     if (!ObjDesc)
1297     {
1298         return (AE_OK);
1299     }
1300 
1301     Pathname = AcpiNsGetNormalizedPathname (Node, TRUE);
1302     if (!Pathname)
1303     {
1304         return (AE_OK);
1305     }
1306 
1307     /* Display all handlers associated with this device */
1308 
1309     HandlerObj = ObjDesc->CommonNotify.Handler;
1310     while (HandlerObj)
1311     {
1312         AcpiOsPrintf (ACPI_PREDEFINED_PREFIX,
1313             AcpiUtGetRegionName ((UINT8) HandlerObj->AddressSpace.SpaceId),
1314             HandlerObj->AddressSpace.SpaceId);
1315 
1316         AcpiOsPrintf (ACPI_HANDLER_PRESENT_STRING2,
1317             (HandlerObj->AddressSpace.HandlerFlags &
1318                 ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" : "User",
1319             HandlerObj->AddressSpace.Handler);
1320 
1321         AcpiOsPrintf (" Device Name: %s (%p)\n", Pathname, Node);
1322 
1323         HandlerObj = HandlerObj->AddressSpace.Next;
1324     }
1325 
1326     ACPI_FREE (Pathname);
1327     return (AE_OK);
1328 }
1329