?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ext4: Fix bug where we return ENOSPC even though we have plenty of inodes
[linux-2.6.git] / drivers / acpi / namespace / nsdump.c
blob0ab22004728a9aae08f7697cb8230456177d0c9f
1 /******************************************************************************
2 *
3 * Module Name: nsdump - table dumping routines for debug
4 *
5 *****************************************************************************/
6
7 /*
8 * Copyright (C) 2000 - 2008, 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 <acpi/acnamesp.h>
46 #include <acpi/acparser.h>
47
48 #define _COMPONENT ACPI_NAMESPACE
49 ACPI_MODULE_NAME("nsdump")
50
51 /* Local prototypes */
52 #ifdef ACPI_OBSOLETE_FUNCTIONS
53 void acpi_ns_dump_root_devices(void);
54
55 static acpi_status
56 acpi_ns_dump_one_device(acpi_handle obj_handle,
57 u32 level, void *context, void **return_value);
58 #endif
59
60 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
61 /*******************************************************************************
62 *
63 * FUNCTION: acpi_ns_print_pathname
64 *
65 * PARAMETERS: num_segments - Number of ACPI name segments
66 * Pathname - The compressed (internal) path
67 *
68 * RETURN: None
69 *
70 * DESCRIPTION: Print an object's full namespace pathname
71 *
72 ******************************************************************************/
73
74 void acpi_ns_print_pathname(u32 num_segments, char *pathname)
75 {
76 u32 i;
77
78 ACPI_FUNCTION_NAME(ns_print_pathname);
79
80 if (!(acpi_dbg_level & ACPI_LV_NAMES)
81 || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
82 return;
83 }
84
85 /* Print the entire name */
86
87 ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
88
89 while (num_segments) {
90 for (i = 0; i < 4; i++) {
91 ACPI_IS_PRINT(pathname[i]) ?
92 acpi_os_printf("%c", pathname[i]) :
93 acpi_os_printf("?");
94 }
95
96 pathname += ACPI_NAME_SIZE;
97 num_segments--;
98 if (num_segments) {
99 acpi_os_printf(".");
100 }
101 }
102
103 acpi_os_printf("]\n");
104 }
105
106 /*******************************************************************************
107 *
108 * FUNCTION: acpi_ns_dump_pathname
109 *
110 * PARAMETERS: Handle - Object
111 * Msg - Prefix message
112 * Level - Desired debug level
113 * Component - Caller's component ID
114 *
115 * RETURN: None
116 *
117 * DESCRIPTION: Print an object's full namespace pathname
118 * Manages allocation/freeing of a pathname buffer
119 *
120 ******************************************************************************/
121
122 void
123 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
124 {
125
126 ACPI_FUNCTION_TRACE(ns_dump_pathname);
127
128 /* Do this only if the requested debug level and component are enabled */
129
130 if (!(acpi_dbg_level & level) || !(acpi_dbg_layer & component)) {
131 return_VOID;
132 }
133
134 /* Convert handle to a full pathname and print it (with supplied message) */
135
136 acpi_ns_print_node_pathname(handle, msg);
137 acpi_os_printf("\n");
138 return_VOID;
139 }
140
141 /*******************************************************************************
142 *
143 * FUNCTION: acpi_ns_dump_one_object
144 *
145 * PARAMETERS: obj_handle - Node to be dumped
146 * Level - Nesting level of the handle
147 * Context - Passed into walk_namespace
148 * return_value - Not used
149 *
150 * RETURN: Status
151 *
152 * DESCRIPTION: Dump a single Node
153 * This procedure is a user_function called by acpi_ns_walk_namespace.
154 *
155 ******************************************************************************/
156
157 acpi_status
158 acpi_ns_dump_one_object(acpi_handle obj_handle,
159 u32 level, void *context, void **return_value)
160 {
161 struct acpi_walk_info *info = (struct acpi_walk_info *)context;
162 struct acpi_namespace_node *this_node;
163 union acpi_operand_object *obj_desc = NULL;
164 acpi_object_type obj_type;
165 acpi_object_type type;
166 u32 bytes_to_dump;
167 u32 dbg_level;
168 u32 i;
169
170 ACPI_FUNCTION_NAME(ns_dump_one_object);
171
172 /* Is output enabled? */
173
174 if (!(acpi_dbg_level & info->debug_level)) {
175 return (AE_OK);
176 }
177
178 if (!obj_handle) {
179 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
180 return (AE_OK);
181 }
182
183 this_node = acpi_ns_map_handle_to_node(obj_handle);
184 type = this_node->type;
185
186 /* Check if the owner matches */
187
188 if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
189 (info->owner_id != this_node->owner_id)) {
190 return (AE_OK);
191 }
192
193 if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
194
195 /* Indent the object according to the level */
196
197 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
198
199 /* Check the node type and name */
200
201 if (type > ACPI_TYPE_LOCAL_MAX) {
202 ACPI_WARNING((AE_INFO, "Invalid ACPI Object Type %08X",
203 type));
204 }
205
206 if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
207 this_node->name.integer =
208 acpi_ut_repair_name(this_node->name.ascii);
209
210 ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
211 this_node->name.integer));
212 }
213
214 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
215 }
216
217 /*
218 * Now we can print out the pertinent information
219 */
220 acpi_os_printf(" %-12s %p %2.2X ",
221 acpi_ut_get_type_name(type), this_node,
222 this_node->owner_id);
223
224 dbg_level = acpi_dbg_level;
225 acpi_dbg_level = 0;
226 obj_desc = acpi_ns_get_attached_object(this_node);
227 acpi_dbg_level = dbg_level;
228
229 /* Temp nodes are those nodes created by a control method */
230
231 if (this_node->flags & ANOBJ_TEMPORARY) {
232 acpi_os_printf("(T) ");
233 }
234
235 switch (info->display_type & ACPI_DISPLAY_MASK) {
236 case ACPI_DISPLAY_SUMMARY:
237
238 if (!obj_desc) {
239
240 /* No attached object, we are done */
241
242 acpi_os_printf("\n");
243 return (AE_OK);
244 }
245
246 switch (type) {
247 case ACPI_TYPE_PROCESSOR:
248
249 acpi_os_printf("ID %X Len %.4X Addr %p\n",
250 obj_desc->processor.proc_id,
251 obj_desc->processor.length,
252 ACPI_CAST_PTR(void,
253 obj_desc->processor.
254 address));
255 break;
256
257 case ACPI_TYPE_DEVICE:
258
259 acpi_os_printf("Notify Object: %p\n", obj_desc);
260 break;
261
262 case ACPI_TYPE_METHOD:
263
264 acpi_os_printf("Args %X Len %.4X Aml %p\n",
265 (u32) obj_desc->method.param_count,
266 obj_desc->method.aml_length,
267 obj_desc->method.aml_start);
268 break;
269
270 case ACPI_TYPE_INTEGER:
271
272 acpi_os_printf("= %8.8X%8.8X\n",
273 ACPI_FORMAT_UINT64(obj_desc->integer.
274 value));
275 break;
276
277 case ACPI_TYPE_PACKAGE:
278
279 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
280 acpi_os_printf("Elements %.2X\n",
281 obj_desc->package.count);
282 } else {
283 acpi_os_printf("[Length not yet evaluated]\n");
284 }
285 break;
286
287 case ACPI_TYPE_BUFFER:
288
289 if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
290 acpi_os_printf("Len %.2X",
291 obj_desc->buffer.length);
292
293 /* Dump some of the buffer */
294
295 if (obj_desc->buffer.length > 0) {
296 acpi_os_printf(" =");
297 for (i = 0;
298 (i < obj_desc->buffer.length
299 && i < 12); i++) {
300 acpi_os_printf(" %.2hX",
301 obj_desc->buffer.
302 pointer[i]);
303 }
304 }
305 acpi_os_printf("\n");
306 } else {
307 acpi_os_printf("[Length not yet evaluated]\n");
308 }
309 break;
310
311 case ACPI_TYPE_STRING:
312
313 acpi_os_printf("Len %.2X ", obj_desc->string.length);
314 acpi_ut_print_string(obj_desc->string.pointer, 32);
315 acpi_os_printf("\n");
316 break;
317
318 case ACPI_TYPE_REGION:
319
320 acpi_os_printf("[%s]",
321 acpi_ut_get_region_name(obj_desc->region.
322 space_id));
323 if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
324 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
325 ACPI_FORMAT_NATIVE_UINT
326 (obj_desc->region.address),
327 obj_desc->region.length);
328 } else {
329 acpi_os_printf
330 (" [Address/Length not yet evaluated]\n");
331 }
332 break;
333
334 case ACPI_TYPE_LOCAL_REFERENCE:
335
336 acpi_os_printf("[%s]\n",
337 acpi_ps_get_opcode_name(obj_desc->
338 reference.
339 opcode));
340 break;
341
342 case ACPI_TYPE_BUFFER_FIELD:
343
344 if (obj_desc->buffer_field.buffer_obj &&
345 obj_desc->buffer_field.buffer_obj->buffer.node) {
346 acpi_os_printf("Buf [%4.4s]",
347 acpi_ut_get_node_name(obj_desc->
348 buffer_field.
349 buffer_obj->
350 buffer.
351 node));
352 }
353 break;
354
355 case ACPI_TYPE_LOCAL_REGION_FIELD:
356
357 acpi_os_printf("Rgn [%4.4s]",
358 acpi_ut_get_node_name(obj_desc->
359 common_field.
360 region_obj->region.
361 node));
362 break;
363
364 case ACPI_TYPE_LOCAL_BANK_FIELD:
365
366 acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
367 acpi_ut_get_node_name(obj_desc->
368 common_field.
369 region_obj->region.
370 node),
371 acpi_ut_get_node_name(obj_desc->
372 bank_field.
373 bank_obj->
374 common_field.
375 node));
376 break;
377
378 case ACPI_TYPE_LOCAL_INDEX_FIELD:
379
380 acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
381 acpi_ut_get_node_name(obj_desc->
382 index_field.
383 index_obj->
384 common_field.node),
385 acpi_ut_get_node_name(obj_desc->
386 index_field.
387 data_obj->
388 common_field.
389 node));
390 break;
391
392 case ACPI_TYPE_LOCAL_ALIAS:
393 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
394
395 acpi_os_printf("Target %4.4s (%p)\n",
396 acpi_ut_get_node_name(obj_desc),
397 obj_desc);
398 break;
399
400 default:
401
402 acpi_os_printf("Object %p\n", obj_desc);
403 break;
404 }
405
406 /* Common field handling */
407
408 switch (type) {
409 case ACPI_TYPE_BUFFER_FIELD:
410 case ACPI_TYPE_LOCAL_REGION_FIELD:
411 case ACPI_TYPE_LOCAL_BANK_FIELD:
412 case ACPI_TYPE_LOCAL_INDEX_FIELD:
413
414 acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
415 (obj_desc->common_field.
416 base_byte_offset * 8)
417 +
418 obj_desc->common_field.
419 start_field_bit_offset,
420 obj_desc->common_field.bit_length,
421 obj_desc->common_field.
422 access_byte_width);
423 break;
424
425 default:
426 break;
427 }
428 break;
429
430 case ACPI_DISPLAY_OBJECTS:
431
432 acpi_os_printf("O:%p", obj_desc);
433 if (!obj_desc) {
434
435 /* No attached object, we are done */
436
437 acpi_os_printf("\n");
438 return (AE_OK);
439 }
440
441 acpi_os_printf("(R%d)", obj_desc->common.reference_count);
442
443 switch (type) {
444 case ACPI_TYPE_METHOD:
445
446 /* Name is a Method and its AML offset/length are set */
447
448 acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
449 obj_desc->method.aml_length);
450 break;
451
452 case ACPI_TYPE_INTEGER:
453
454 acpi_os_printf(" I:%8.8X8.8%X\n",
455 ACPI_FORMAT_UINT64(obj_desc->integer.
456 value));
457 break;
458
459 case ACPI_TYPE_STRING:
460
461 acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
462 obj_desc->string.length);
463 break;
464
465 case ACPI_TYPE_BUFFER:
466
467 acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
468 obj_desc->buffer.length);
469 break;
470
471 default:
472
473 acpi_os_printf("\n");
474 break;
475 }
476 break;
477
478 default:
479 acpi_os_printf("\n");
480 break;
481 }
482
483 /* If debug turned off, done */
484
485 if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
486 return (AE_OK);
487 }
488
489 /* If there is an attached object, display it */
490
491 dbg_level = acpi_dbg_level;
492 acpi_dbg_level = 0;
493 obj_desc = acpi_ns_get_attached_object(this_node);
494 acpi_dbg_level = dbg_level;
495
496 /* Dump attached objects */
497
498 while (obj_desc) {
499 obj_type = ACPI_TYPE_INVALID;
500 acpi_os_printf("Attached Object %p: ", obj_desc);
501
502 /* Decode the type of attached object and dump the contents */
503
504 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
505 case ACPI_DESC_TYPE_NAMED:
506
507 acpi_os_printf("(Ptr to Node)\n");
508 bytes_to_dump = sizeof(struct acpi_namespace_node);
509 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
510 break;
511
512 case ACPI_DESC_TYPE_OPERAND:
513
514 obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
515
516 if (obj_type > ACPI_TYPE_LOCAL_MAX) {
517 acpi_os_printf
518 ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
519 obj_type);
520 bytes_to_dump = 32;
521 } else {
522 acpi_os_printf
523 ("(Pointer to ACPI Object type %.2X [%s])\n",
524 obj_type, acpi_ut_get_type_name(obj_type));
525 bytes_to_dump =
526 sizeof(union acpi_operand_object);
527 }
528
529 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
530 break;
531
532 default:
533
534 break;
535 }
536
537 /* If value is NOT an internal object, we are done */
538
539 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
540 ACPI_DESC_TYPE_OPERAND) {
541 goto cleanup;
542 }
543
544 /*
545 * Valid object, get the pointer to next level, if any
546 */
547 switch (obj_type) {
548 case ACPI_TYPE_BUFFER:
549 case ACPI_TYPE_STRING:
550 /*
551 * NOTE: takes advantage of common fields between string/buffer
552 */
553 bytes_to_dump = obj_desc->string.length;
554 obj_desc = (void *)obj_desc->string.pointer;
555 acpi_os_printf("(Buffer/String pointer %p length %X)\n",
556 obj_desc, bytes_to_dump);
557 ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
558 goto cleanup;
559
560 case ACPI_TYPE_BUFFER_FIELD:
561 obj_desc =
562 (union acpi_operand_object *)obj_desc->buffer_field.
563 buffer_obj;
564 break;
565
566 case ACPI_TYPE_PACKAGE:
567 obj_desc = (void *)obj_desc->package.elements;
568 break;
569
570 case ACPI_TYPE_METHOD:
571 obj_desc = (void *)obj_desc->method.aml_start;
572 break;
573
574 case ACPI_TYPE_LOCAL_REGION_FIELD:
575 obj_desc = (void *)obj_desc->field.region_obj;
576 break;
577
578 case ACPI_TYPE_LOCAL_BANK_FIELD:
579 obj_desc = (void *)obj_desc->bank_field.region_obj;
580 break;
581
582 case ACPI_TYPE_LOCAL_INDEX_FIELD:
583 obj_desc = (void *)obj_desc->index_field.index_obj;
584 break;
585
586 default:
587 goto cleanup;
588 }
589
590 obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
591 }
592
593 cleanup:
594 acpi_os_printf("\n");
595 return (AE_OK);
596 }
597
598 #ifdef ACPI_FUTURE_USAGE
599 /*******************************************************************************
600 *
601 * FUNCTION: acpi_ns_dump_objects
602 *
603 * PARAMETERS: Type - Object type to be dumped
604 * display_type - 0 or ACPI_DISPLAY_SUMMARY
605 * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX
606 * for an effectively unlimited depth.
607 * owner_id - Dump only objects owned by this ID. Use
608 * ACPI_UINT32_MAX to match all owners.
609 * start_handle - Where in namespace to start/end search
610 *
611 * RETURN: None
612 *
613 * DESCRIPTION: Dump typed objects within the loaded namespace.
614 * Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
615 *
616 ******************************************************************************/
617
618 void
619 acpi_ns_dump_objects(acpi_object_type type,
620 u8 display_type,
621 u32 max_depth,
622 acpi_owner_id owner_id, acpi_handle start_handle)
623 {
624 struct acpi_walk_info info;
625
626 ACPI_FUNCTION_ENTRY();
627
628 info.debug_level = ACPI_LV_TABLES;
629 info.owner_id = owner_id;
630 info.display_type = display_type;
631
632 (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
633 ACPI_NS_WALK_NO_UNLOCK |
634 ACPI_NS_WALK_TEMP_NODES,
635 acpi_ns_dump_one_object, (void *)&info,
636 NULL);
637 }
638 #endif /* ACPI_FUTURE_USAGE */
639
640 /*******************************************************************************
641 *
642 * FUNCTION: acpi_ns_dump_entry
643 *
644 * PARAMETERS: Handle - Node to be dumped
645 * debug_level - Output level
646 *
647 * RETURN: None
648 *
649 * DESCRIPTION: Dump a single Node
650 *
651 ******************************************************************************/
652
653 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
654 {
655 struct acpi_walk_info info;
656
657 ACPI_FUNCTION_ENTRY();
658
659 info.debug_level = debug_level;
660 info.owner_id = ACPI_OWNER_ID_MAX;
661 info.display_type = ACPI_DISPLAY_SUMMARY;
662
663 (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
664 }
665
666 #ifdef ACPI_ASL_COMPILER
667 /*******************************************************************************
668 *
669 * FUNCTION: acpi_ns_dump_tables
670 *
671 * PARAMETERS: search_base - Root of subtree to be dumped, or
672 * NS_ALL to dump the entire namespace
673 * max_depth - Maximum depth of dump. Use INT_MAX
674 * for an effectively unlimited depth.
675 *
676 * RETURN: None
677 *
678 * DESCRIPTION: Dump the name space, or a portion of it.
679 *
680 ******************************************************************************/
681
682 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
683 {
684 acpi_handle search_handle = search_base;
685
686 ACPI_FUNCTION_TRACE(ns_dump_tables);
687
688 if (!acpi_gbl_root_node) {
689 /*
690 * If the name space has not been initialized,
691 * there is nothing to dump.
692 */
693 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
694 "namespace not initialized!\n"));
695 return_VOID;
696 }
697
698 if (ACPI_NS_ALL == search_base) {
699
700 /* Entire namespace */
701
702 search_handle = acpi_gbl_root_node;
703 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
704 }
705
706 acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
707 ACPI_OWNER_ID_MAX, search_handle);
708 return_VOID;
709 }
710 #endif /* _ACPI_ASL_COMPILER */
711 #endif /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */
Linus' kernel tree