Merge branch 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux
[deliverable/linux.git] / drivers / acpi / acpica / nsdump.c
1 /******************************************************************************
2 *
3 * Module Name: nsdump - table dumping routines for debug
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2013, 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/acpi.h>
45 #include "accommon.h"
46 #include "acnamesp.h"
47 #include <acpi/acoutput.h>
48
49 #define _COMPONENT ACPI_NAMESPACE
50 ACPI_MODULE_NAME("nsdump")
51
52 /* Local prototypes */
53 #ifdef ACPI_OBSOLETE_FUNCTIONS
54 void acpi_ns_dump_root_devices(void);
55
56 static acpi_status
57 acpi_ns_dump_one_device(acpi_handle obj_handle,
58 u32 level, void *context, void **return_value);
59 #endif
60
61 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
62 /*******************************************************************************
63 *
64 * FUNCTION: acpi_ns_print_pathname
65 *
66 * PARAMETERS: num_segments - Number of ACPI name segments
67 * pathname - The compressed (internal) path
68 *
69 * RETURN: None
70 *
71 * DESCRIPTION: Print an object's full namespace pathname
72 *
73 ******************************************************************************/
74
75 void acpi_ns_print_pathname(u32 num_segments, char *pathname)
76 {
77 u32 i;
78
79 ACPI_FUNCTION_NAME(ns_print_pathname);
80
81 /* Check if debug output enabled */
82
83 if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_NAMES, ACPI_NAMESPACE)) {
84 return;
85 }
86
87 /* Print the entire name */
88
89 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
90
91 while (num_segments) {
92 for (i = 0; i < 4; i++) {
93 ACPI_IS_PRINT(pathname[i]) ?
94 acpi_os_printf("%c", pathname[i]) :
95 acpi_os_printf("?");
96 }
97
98 pathname += ACPI_NAME_SIZE;
99 num_segments--;
100 if (num_segments) {
101 acpi_os_printf(".");
102 }
103 }
104
105 acpi_os_printf("]\n");
106 }
107
108 /*******************************************************************************
109 *
110 * FUNCTION: acpi_ns_dump_pathname
111 *
112 * PARAMETERS: handle - Object
113 * msg - Prefix message
114 * level - Desired debug level
115 * component - Caller's component ID
116 *
117 * RETURN: None
118 *
119 * DESCRIPTION: Print an object's full namespace pathname
120 * Manages allocation/freeing of a pathname buffer
121 *
122 ******************************************************************************/
123
124 void
125 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
126 {
127
128 ACPI_FUNCTION_TRACE(ns_dump_pathname);
129
130 /* Do this only if the requested debug level and component are enabled */
131
132 if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
133 return_VOID;
134 }
135
136 /* Convert handle to a full pathname and print it (with supplied message) */
137
138 acpi_ns_print_node_pathname(handle, msg);
139 acpi_os_printf("\n");
140 return_VOID;
141 }
142
143 /*******************************************************************************
144 *
145 * FUNCTION: acpi_ns_dump_one_object
146 *
147 * PARAMETERS: obj_handle - Node to be dumped
148 * level - Nesting level of the handle
149 * context - Passed into walk_namespace
150 * return_value - Not used
151 *
152 * RETURN: Status
153 *
154 * DESCRIPTION: Dump a single Node
155 * This procedure is a user_function called by acpi_ns_walk_namespace.
156 *
157 ******************************************************************************/
158
159 acpi_status
160 acpi_ns_dump_one_object(acpi_handle obj_handle,
161 u32 level, void *context, void **return_value)
162 {
163 struct acpi_walk_info *info = (struct acpi_walk_info *)context;
164 struct acpi_namespace_node *this_node;
165 union acpi_operand_object *obj_desc = NULL;
166 acpi_object_type obj_type;
167 acpi_object_type type;
168 u32 bytes_to_dump;
169 u32 dbg_level;
170 u32 i;
171
172 ACPI_FUNCTION_NAME(ns_dump_one_object);
173
174 /* Is output enabled? */
175
176 if (!(acpi_dbg_level & info->debug_level)) {
177 return (AE_OK);
178 }
179
180 if (!obj_handle) {
181 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
182 return (AE_OK);
183 }
184
185 this_node = acpi_ns_validate_handle(obj_handle);
186 if (!this_node) {
187 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
188 obj_handle));
189 return (AE_OK);
190 }
191
192 type = this_node->type;
193
194 /* Check if the owner matches */
195
196 if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
197 (info->owner_id != this_node->owner_id)) {
198 return (AE_OK);
199 }
200
201 if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
202
203 /* Indent the object according to the level */
204
205 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
206
207 /* Check the node type and name */
208
209 if (type > ACPI_TYPE_LOCAL_MAX) {
210 ACPI_WARNING((AE_INFO,
211 "Invalid ACPI Object Type 0x%08X", type));
212 }
213
214 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
215 }
216
217 /* Now we can print out the pertinent information */
218
219 acpi_os_printf(" %-12s %p %2.2X ",
220 acpi_ut_get_type_name(type), this_node,
221 this_node->owner_id);
222
223 dbg_level = acpi_dbg_level;
224 acpi_dbg_level = 0;
225 obj_desc = acpi_ns_get_attached_object(this_node);
226 acpi_dbg_level = dbg_level;
227
228 /* Temp nodes are those nodes created by a control method */
229
230 if (this_node->flags & ANOBJ_TEMPORARY) {
231 acpi_os_printf("(T) ");
232 }
233
234 switch (info->display_type & ACPI_DISPLAY_MASK) {
235 case ACPI_DISPLAY_SUMMARY:
236
237 if (!obj_desc) {
238
239 /* No attached object. Some types should always have an object */
240
241 switch (type) {
242 case ACPI_TYPE_INTEGER:
243 case ACPI_TYPE_PACKAGE:
244 case ACPI_TYPE_BUFFER:
245 case ACPI_TYPE_STRING:
246 case ACPI_TYPE_METHOD:
247
248 acpi_os_printf("<No attached object>");
249 break;
250
251 default:
252
253 break;
254 }
255
256 acpi_os_printf("\n");
257 return (AE_OK);
258 }
259
260 switch (type) {
261 case ACPI_TYPE_PROCESSOR:
262
263 acpi_os_printf("ID %02X Len %02X Addr %p\n",
264 obj_desc->processor.proc_id,
265 obj_desc->processor.length,
266 ACPI_CAST_PTR(void,
267 obj_desc->processor.
268 address));
269 break;
270
271 case ACPI_TYPE_DEVICE:
272
273 acpi_os_printf("Notify Object: %p\n", obj_desc);
274 break;
275
276 case ACPI_TYPE_METHOD:
277
278 acpi_os_printf("Args %X Len %.4X Aml %p\n",
279 (u32) obj_desc->method.param_count,
280 obj_desc->method.aml_length,
281 obj_desc->method.aml_start);
282 break;
283
284 case ACPI_TYPE_INTEGER:
285
286 acpi_os_printf("= %8.8X%8.8X\n",
287 ACPI_FORMAT_UINT64(obj_desc->integer.
288 value));
289 break;
290
291 case ACPI_TYPE_PACKAGE:
292
293 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
294 acpi_os_printf("Elements %.2X\n",
295 obj_desc->package.count);
296 } else {
297 acpi_os_printf("[Length not yet evaluated]\n");
298 }
299 break;
300
301 case ACPI_TYPE_BUFFER:
302
303 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
304 acpi_os_printf("Len %.2X",
305 obj_desc->buffer.length);
306
307 /* Dump some of the buffer */
308
309 if (obj_desc->buffer.length > 0) {
310 acpi_os_printf(" =");
311 for (i = 0;
312 (i < obj_desc->buffer.length
313 && i < 12); i++) {
314 acpi_os_printf(" %.2hX",
315 obj_desc->buffer.
316 pointer[i]);
317 }
318 }
319 acpi_os_printf("\n");
320 } else {
321 acpi_os_printf("[Length not yet evaluated]\n");
322 }
323 break;
324
325 case ACPI_TYPE_STRING:
326
327 acpi_os_printf("Len %.2X ", obj_desc->string.length);
328 acpi_ut_print_string(obj_desc->string.pointer, 32);
329 acpi_os_printf("\n");
330 break;
331
332 case ACPI_TYPE_REGION:
333
334 acpi_os_printf("[%s]",
335 acpi_ut_get_region_name(obj_desc->region.
336 space_id));
337 if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
338 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
339 ACPI_FORMAT_NATIVE_UINT
340 (obj_desc->region.address),
341 obj_desc->region.length);
342 } else {
343 acpi_os_printf
344 (" [Address/Length not yet evaluated]\n");
345 }
346 break;
347
348 case ACPI_TYPE_LOCAL_REFERENCE:
349
350 acpi_os_printf("[%s]\n",
351 acpi_ut_get_reference_name(obj_desc));
352 break;
353
354 case ACPI_TYPE_BUFFER_FIELD:
355
356 if (obj_desc->buffer_field.buffer_obj &&
357 obj_desc->buffer_field.buffer_obj->buffer.node) {
358 acpi_os_printf("Buf [%4.4s]",
359 acpi_ut_get_node_name(obj_desc->
360 buffer_field.
361 buffer_obj->
362 buffer.
363 node));
364 }
365 break;
366
367 case ACPI_TYPE_LOCAL_REGION_FIELD:
368
369 acpi_os_printf("Rgn [%4.4s]",
370 acpi_ut_get_node_name(obj_desc->
371 common_field.
372 region_obj->region.
373 node));
374 break;
375
376 case ACPI_TYPE_LOCAL_BANK_FIELD:
377
378 acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
379 acpi_ut_get_node_name(obj_desc->
380 common_field.
381 region_obj->region.
382 node),
383 acpi_ut_get_node_name(obj_desc->
384 bank_field.
385 bank_obj->
386 common_field.
387 node));
388 break;
389
390 case ACPI_TYPE_LOCAL_INDEX_FIELD:
391
392 acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
393 acpi_ut_get_node_name(obj_desc->
394 index_field.
395 index_obj->
396 common_field.node),
397 acpi_ut_get_node_name(obj_desc->
398 index_field.
399 data_obj->
400 common_field.
401 node));
402 break;
403
404 case ACPI_TYPE_LOCAL_ALIAS:
405 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
406
407 acpi_os_printf("Target %4.4s (%p)\n",
408 acpi_ut_get_node_name(obj_desc),
409 obj_desc);
410 break;
411
412 default:
413
414 acpi_os_printf("Object %p\n", obj_desc);
415 break;
416 }
417
418 /* Common field handling */
419
420 switch (type) {
421 case ACPI_TYPE_BUFFER_FIELD:
422 case ACPI_TYPE_LOCAL_REGION_FIELD:
423 case ACPI_TYPE_LOCAL_BANK_FIELD:
424 case ACPI_TYPE_LOCAL_INDEX_FIELD:
425
426 acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
427 (obj_desc->common_field.
428 base_byte_offset * 8)
429 +
430 obj_desc->common_field.
431 start_field_bit_offset,
432 obj_desc->common_field.bit_length,
433 obj_desc->common_field.
434 access_byte_width);
435 break;
436
437 default:
438
439 break;
440 }
441 break;
442
443 case ACPI_DISPLAY_OBJECTS:
444
445 acpi_os_printf("O:%p", obj_desc);
446 if (!obj_desc) {
447
448 /* No attached object, we are done */
449
450 acpi_os_printf("\n");
451 return (AE_OK);
452 }
453
454 acpi_os_printf("(R%u)", obj_desc->common.reference_count);
455
456 switch (type) {
457 case ACPI_TYPE_METHOD:
458
459 /* Name is a Method and its AML offset/length are set */
460
461 acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
462 obj_desc->method.aml_length);
463 break;
464
465 case ACPI_TYPE_INTEGER:
466
467 acpi_os_printf(" I:%8.8X8.8%X\n",
468 ACPI_FORMAT_UINT64(obj_desc->integer.
469 value));
470 break;
471
472 case ACPI_TYPE_STRING:
473
474 acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
475 obj_desc->string.length);
476 break;
477
478 case ACPI_TYPE_BUFFER:
479
480 acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
481 obj_desc->buffer.length);
482 break;
483
484 default:
485
486 acpi_os_printf("\n");
487 break;
488 }
489 break;
490
491 default:
492 acpi_os_printf("\n");
493 break;
494 }
495
496 /* If debug turned off, done */
497
498 if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
499 return (AE_OK);
500 }
501
502 /* If there is an attached object, display it */
503
504 dbg_level = acpi_dbg_level;
505 acpi_dbg_level = 0;
506 obj_desc = acpi_ns_get_attached_object(this_node);
507 acpi_dbg_level = dbg_level;
508
509 /* Dump attached objects */
510
511 while (obj_desc) {
512 obj_type = ACPI_TYPE_INVALID;
513 acpi_os_printf("Attached Object %p: ", obj_desc);
514
515 /* Decode the type of attached object and dump the contents */
516
517 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
518 case ACPI_DESC_TYPE_NAMED:
519
520 acpi_os_printf("(Ptr to Node)\n");
521 bytes_to_dump = sizeof(struct acpi_namespace_node);
522 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
523 break;
524
525 case ACPI_DESC_TYPE_OPERAND:
526
527 obj_type = obj_desc->common.type;
528
529 if (obj_type > ACPI_TYPE_LOCAL_MAX) {
530 acpi_os_printf
531 ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
532 obj_type);
533 bytes_to_dump = 32;
534 } else {
535 acpi_os_printf
536 ("(Pointer to ACPI Object type %.2X [%s])\n",
537 obj_type, acpi_ut_get_type_name(obj_type));
538 bytes_to_dump =
539 sizeof(union acpi_operand_object);
540 }
541
542 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
543 break;
544
545 default:
546
547 break;
548 }
549
550 /* If value is NOT an internal object, we are done */
551
552 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
553 ACPI_DESC_TYPE_OPERAND) {
554 goto cleanup;
555 }
556
557 /* Valid object, get the pointer to next level, if any */
558
559 switch (obj_type) {
560 case ACPI_TYPE_BUFFER:
561 case ACPI_TYPE_STRING:
562 /*
563 * NOTE: takes advantage of common fields between string/buffer
564 */
565 bytes_to_dump = obj_desc->string.length;
566 obj_desc = (void *)obj_desc->string.pointer;
567 acpi_os_printf("(Buffer/String pointer %p length %X)\n",
568 obj_desc, bytes_to_dump);
569 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
570 goto cleanup;
571
572 case ACPI_TYPE_BUFFER_FIELD:
573
574 obj_desc =
575 (union acpi_operand_object *)obj_desc->buffer_field.
576 buffer_obj;
577 break;
578
579 case ACPI_TYPE_PACKAGE:
580
581 obj_desc = (void *)obj_desc->package.elements;
582 break;
583
584 case ACPI_TYPE_METHOD:
585
586 obj_desc = (void *)obj_desc->method.aml_start;
587 break;
588
589 case ACPI_TYPE_LOCAL_REGION_FIELD:
590
591 obj_desc = (void *)obj_desc->field.region_obj;
592 break;
593
594 case ACPI_TYPE_LOCAL_BANK_FIELD:
595
596 obj_desc = (void *)obj_desc->bank_field.region_obj;
597 break;
598
599 case ACPI_TYPE_LOCAL_INDEX_FIELD:
600
601 obj_desc = (void *)obj_desc->index_field.index_obj;
602 break;
603
604 default:
605
606 goto cleanup;
607 }
608
609 obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
610 }
611
612 cleanup:
613 acpi_os_printf("\n");
614 return (AE_OK);
615 }
616
617 #ifdef ACPI_FUTURE_USAGE
618 /*******************************************************************************
619 *
620 * FUNCTION: acpi_ns_dump_objects
621 *
622 * PARAMETERS: type - Object type to be dumped
623 * display_type - 0 or ACPI_DISPLAY_SUMMARY
624 * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
625 * for an effectively unlimited depth.
626 * owner_id - Dump only objects owned by this ID. Use
627 * ACPI_UINT32_MAX to match all owners.
628 * start_handle - Where in namespace to start/end search
629 *
630 * RETURN: None
631 *
632 * DESCRIPTION: Dump typed objects within the loaded namespace. Uses
633 * acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
634 *
635 ******************************************************************************/
636
637 void
638 acpi_ns_dump_objects(acpi_object_type type,
639 u8 display_type,
640 u32 max_depth,
641 acpi_owner_id owner_id, acpi_handle start_handle)
642 {
643 struct acpi_walk_info info;
644 acpi_status status;
645
646 ACPI_FUNCTION_ENTRY();
647
648 /*
649 * Just lock the entire namespace for the duration of the dump.
650 * We don't want any changes to the namespace during this time,
651 * especially the temporary nodes since we are going to display
652 * them also.
653 */
654 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
655 if (ACPI_FAILURE(status)) {
656 acpi_os_printf("Could not acquire namespace mutex\n");
657 return;
658 }
659
660 info.debug_level = ACPI_LV_TABLES;
661 info.owner_id = owner_id;
662 info.display_type = display_type;
663
664 (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
665 ACPI_NS_WALK_NO_UNLOCK |
666 ACPI_NS_WALK_TEMP_NODES,
667 acpi_ns_dump_one_object, NULL,
668 (void *)&info, NULL);
669
670 (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
671 }
672 #endif /* ACPI_FUTURE_USAGE */
673
674 /*******************************************************************************
675 *
676 * FUNCTION: acpi_ns_dump_entry
677 *
678 * PARAMETERS: handle - Node to be dumped
679 * debug_level - Output level
680 *
681 * RETURN: None
682 *
683 * DESCRIPTION: Dump a single Node
684 *
685 ******************************************************************************/
686
687 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
688 {
689 struct acpi_walk_info info;
690
691 ACPI_FUNCTION_ENTRY();
692
693 info.debug_level = debug_level;
694 info.owner_id = ACPI_OWNER_ID_MAX;
695 info.display_type = ACPI_DISPLAY_SUMMARY;
696
697 (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
698 }
699
700 #ifdef ACPI_ASL_COMPILER
701 /*******************************************************************************
702 *
703 * FUNCTION: acpi_ns_dump_tables
704 *
705 * PARAMETERS: search_base - Root of subtree to be dumped, or
706 * NS_ALL to dump the entire namespace
707 * max_depth - Maximum depth of dump. Use INT_MAX
708 * for an effectively unlimited depth.
709 *
710 * RETURN: None
711 *
712 * DESCRIPTION: Dump the name space, or a portion of it.
713 *
714 ******************************************************************************/
715
716 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
717 {
718 acpi_handle search_handle = search_base;
719
720 ACPI_FUNCTION_TRACE(ns_dump_tables);
721
722 if (!acpi_gbl_root_node) {
723 /*
724 * If the name space has not been initialized,
725 * there is nothing to dump.
726 */
727 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
728 "namespace not initialized!\n"));
729 return_VOID;
730 }
731
732 if (ACPI_NS_ALL == search_base) {
733
734 /* Entire namespace */
735
736 search_handle = acpi_gbl_root_node;
737 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
738 }
739
740 acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
741 ACPI_OWNER_ID_MAX, search_handle);
742 return_VOID;
743 }
744 #endif
745 #endif
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