git.oblomov.eu Git - linux-2.6/blob - drivers/acpi/namespace/nsdump.c

   1 /******************************************************************************
   2  *
   3  * Module Name: nsdump - table dumping routines for debug
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2006, R. Byron Moore
   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         acpi_native_uint 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.integer);
 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         switch (info->display_type & ACPI_DISPLAY_MASK) {
 230         case ACPI_DISPLAY_SUMMARY:
 231
 232                 if (!obj_desc) {
 233
 234                         /* No attached object, we are done */
 235
 236                         acpi_os_printf("\n");
 237                         return (AE_OK);
 238                 }
 239
 240                 switch (type) {
 241                 case ACPI_TYPE_PROCESSOR:
 242
 243                         acpi_os_printf("ID %X Len %.4X Addr %p\n",
 244                                        obj_desc->processor.proc_id,
 245                                        obj_desc->processor.length,
 246                                        (char *)obj_desc->processor.address);
 247                         break;
 248
 249                 case ACPI_TYPE_DEVICE:
 250
 251                         acpi_os_printf("Notify Object: %p\n", obj_desc);
 252                         break;
 253
 254                 case ACPI_TYPE_METHOD:
 255
 256                         acpi_os_printf("Args %X Len %.4X Aml %p\n",
 257                                        (u32) obj_desc->method.param_count,
 258                                        obj_desc->method.aml_length,
 259                                        obj_desc->method.aml_start);
 260                         break;
 261
 262                 case ACPI_TYPE_INTEGER:
 263
 264                         acpi_os_printf("= %8.8X%8.8X\n",
 265                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 266                                                           value));
 267                         break;
 268
 269                 case ACPI_TYPE_PACKAGE:
 270
 271                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 272                                 acpi_os_printf("Elements %.2X\n",
 273                                                obj_desc->package.count);
 274                         } else {
 275                                 acpi_os_printf("[Length not yet evaluated]\n");
 276                         }
 277                         break;
 278
 279                 case ACPI_TYPE_BUFFER:
 280
 281                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 282                                 acpi_os_printf("Len %.2X",
 283                                                obj_desc->buffer.length);
 284
 285                                 /* Dump some of the buffer */
 286
 287                                 if (obj_desc->buffer.length > 0) {
 288                                         acpi_os_printf(" =");
 289                                         for (i = 0;
 290                                              (i < obj_desc->buffer.length
 291                                               && i < 12); i++) {
 292                                                 acpi_os_printf(" %.2hX",
 293                                                                obj_desc->buffer.
 294                                                                pointer[i]);
 295                                         }
 296                                 }
 297                                 acpi_os_printf("\n");
 298                         } else {
 299                                 acpi_os_printf("[Length not yet evaluated]\n");
 300                         }
 301                         break;
 302
 303                 case ACPI_TYPE_STRING:
 304
 305                         acpi_os_printf("Len %.2X ", obj_desc->string.length);
 306                         acpi_ut_print_string(obj_desc->string.pointer, 32);
 307                         acpi_os_printf("\n");
 308                         break;
 309
 310                 case ACPI_TYPE_REGION:
 311
 312                         acpi_os_printf("[%s]",
 313                                        acpi_ut_get_region_name(obj_desc->region.
 314                                                                space_id));
 315                         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
 316                                 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
 317                                                ACPI_FORMAT_UINT64(obj_desc->
 318                                                                   region.
 319                                                                   address),
 320                                                obj_desc->region.length);
 321                         } else {
 322                                 acpi_os_printf
 323                                     (" [Address/Length not yet evaluated]\n");
 324                         }
 325                         break;
 326
 327                 case ACPI_TYPE_LOCAL_REFERENCE:
 328
 329                         acpi_os_printf("[%s]\n",
 330                                        acpi_ps_get_opcode_name(obj_desc->
 331                                                                reference.
 332                                                                opcode));
 333                         break;
 334
 335                 case ACPI_TYPE_BUFFER_FIELD:
 336
 337                         if (obj_desc->buffer_field.buffer_obj &&
 338                             obj_desc->buffer_field.buffer_obj->buffer.node) {
 339                                 acpi_os_printf("Buf [%4.4s]",
 340                                                acpi_ut_get_node_name(obj_desc->
 341                                                                      buffer_field.
 342                                                                      buffer_obj->
 343                                                                      buffer.
 344                                                                      node));
 345                         }
 346                         break;
 347
 348                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 349
 350                         acpi_os_printf("Rgn [%4.4s]",
 351                                        acpi_ut_get_node_name(obj_desc->
 352                                                              common_field.
 353                                                              region_obj->region.
 354                                                              node));
 355                         break;
 356
 357                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 358
 359                         acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
 360                                        acpi_ut_get_node_name(obj_desc->
 361                                                              common_field.
 362                                                              region_obj->region.
 363                                                              node),
 364                                        acpi_ut_get_node_name(obj_desc->
 365                                                              bank_field.
 366                                                              bank_obj->
 367                                                              common_field.
 368                                                              node));
 369                         break;
 370
 371                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 372
 373                         acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
 374                                        acpi_ut_get_node_name(obj_desc->
 375                                                              index_field.
 376                                                              index_obj->
 377                                                              common_field.node),
 378                                        acpi_ut_get_node_name(obj_desc->
 379                                                              index_field.
 380                                                              data_obj->
 381                                                              common_field.
 382                                                              node));
 383                         break;
 384
 385                 case ACPI_TYPE_LOCAL_ALIAS:
 386                 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
 387
 388                         acpi_os_printf("Target %4.4s (%p)\n",
 389                                        acpi_ut_get_node_name(obj_desc),
 390                                        obj_desc);
 391                         break;
 392
 393                 default:
 394
 395                         acpi_os_printf("Object %p\n", obj_desc);
 396                         break;
 397                 }
 398
 399                 /* Common field handling */
 400
 401                 switch (type) {
 402                 case ACPI_TYPE_BUFFER_FIELD:
 403                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 404                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 405                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 406
 407                         acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
 408                                        (obj_desc->common_field.
 409                                         base_byte_offset * 8)
 410                                        +
 411                                        obj_desc->common_field.
 412                                        start_field_bit_offset,
 413                                        obj_desc->common_field.bit_length,
 414                                        obj_desc->common_field.
 415                                        access_byte_width);
 416                         break;
 417
 418                 default:
 419                         break;
 420                 }
 421                 break;
 422
 423         case ACPI_DISPLAY_OBJECTS:
 424
 425                 acpi_os_printf("O:%p", obj_desc);
 426                 if (!obj_desc) {
 427
 428                         /* No attached object, we are done */
 429
 430                         acpi_os_printf("\n");
 431                         return (AE_OK);
 432                 }
 433
 434                 acpi_os_printf("(R%d)", obj_desc->common.reference_count);
 435
 436                 switch (type) {
 437                 case ACPI_TYPE_METHOD:
 438
 439                         /* Name is a Method and its AML offset/length are set */
 440
 441                         acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
 442                                        obj_desc->method.aml_length);
 443                         break;
 444
 445                 case ACPI_TYPE_INTEGER:
 446
 447                         acpi_os_printf(" I:%8.8X8.8%X\n",
 448                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 449                                                           value));
 450                         break;
 451
 452                 case ACPI_TYPE_STRING:
 453
 454                         acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
 455                                        obj_desc->string.length);
 456                         break;
 457
 458                 case ACPI_TYPE_BUFFER:
 459
 460                         acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
 461                                        obj_desc->buffer.length);
 462                         break;
 463
 464                 default:
 465
 466                         acpi_os_printf("\n");
 467                         break;
 468                 }
 469                 break;
 470
 471         default:
 472                 acpi_os_printf("\n");
 473                 break;
 474         }
 475
 476         /* If debug turned off, done */
 477
 478         if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
 479                 return (AE_OK);
 480         }
 481
 482         /* If there is an attached object, display it */
 483
 484         dbg_level = acpi_dbg_level;
 485         acpi_dbg_level = 0;
 486         obj_desc = acpi_ns_get_attached_object(this_node);
 487         acpi_dbg_level = dbg_level;
 488
 489         /* Dump attached objects */
 490
 491         while (obj_desc) {
 492                 obj_type = ACPI_TYPE_INVALID;
 493                 acpi_os_printf("Attached Object %p: ", obj_desc);
 494
 495                 /* Decode the type of attached object and dump the contents */
 496
 497                 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
 498                 case ACPI_DESC_TYPE_NAMED:
 499
 500                         acpi_os_printf("(Ptr to Node)\n");
 501                         bytes_to_dump = sizeof(struct acpi_namespace_node);
 502                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 503                         break;
 504
 505                 case ACPI_DESC_TYPE_OPERAND:
 506
 507                         obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
 508
 509                         if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 510                                 acpi_os_printf
 511                                     ("(Ptr to ACPI Object type %X [UNKNOWN])\n",
 512                                      obj_type);
 513                                 bytes_to_dump = 32;
 514                         } else {
 515                                 acpi_os_printf
 516                                     ("(Ptr to ACPI Object type %X [%s])\n",
 517                                      obj_type, acpi_ut_get_type_name(obj_type));
 518                                 bytes_to_dump =
 519                                     sizeof(union acpi_operand_object);
 520                         }
 521
 522                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 523                         break;
 524
 525                 default:
 526
 527                         break;
 528                 }
 529
 530                 /* If value is NOT an internal object, we are done */
 531
 532                 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
 533                     ACPI_DESC_TYPE_OPERAND) {
 534                         goto cleanup;
 535                 }
 536
 537                 /*
 538                  * Valid object, get the pointer to next level, if any
 539                  */
 540                 switch (obj_type) {
 541                 case ACPI_TYPE_BUFFER:
 542                 case ACPI_TYPE_STRING:
 543                         /*
 544                          * NOTE: takes advantage of common fields between string/buffer
 545                          */
 546                         bytes_to_dump = obj_desc->string.length;
 547                         obj_desc = (void *)obj_desc->string.pointer;
 548                         acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 549                                        obj_desc, bytes_to_dump);
 550                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 551                         goto cleanup;
 552
 553                 case ACPI_TYPE_BUFFER_FIELD:
 554                         obj_desc =
 555                             (union acpi_operand_object *)obj_desc->buffer_field.
 556                             buffer_obj;
 557                         break;
 558
 559                 case ACPI_TYPE_PACKAGE:
 560                         obj_desc = (void *)obj_desc->package.elements;
 561                         break;
 562
 563                 case ACPI_TYPE_METHOD:
 564                         obj_desc = (void *)obj_desc->method.aml_start;
 565                         break;
 566
 567                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 568                         obj_desc = (void *)obj_desc->field.region_obj;
 569                         break;
 570
 571                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 572                         obj_desc = (void *)obj_desc->bank_field.region_obj;
 573                         break;
 574
 575                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 576                         obj_desc = (void *)obj_desc->index_field.index_obj;
 577                         break;
 578
 579                 default:
 580                         goto cleanup;
 581                 }
 582
 583                 obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
 584         }
 585
 586       cleanup:
 587         acpi_os_printf("\n");
 588         return (AE_OK);
 589 }
 590
 591 #ifdef ACPI_FUTURE_USAGE
 592 /*******************************************************************************
 593  *
 594  * FUNCTION:    acpi_ns_dump_objects
 595  *
 596  * PARAMETERS:  Type                - Object type to be dumped
 597  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 598  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 599  *                                    for an effectively unlimited depth.
 600  *              owner_id            - Dump only objects owned by this ID.  Use
 601  *                                    ACPI_UINT32_MAX to match all owners.
 602  *              start_handle        - Where in namespace to start/end search
 603  *
 604  * RETURN:      None
 605  *
 606  * DESCRIPTION: Dump typed objects within the loaded namespace.
 607  *              Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 608  *
 609  ******************************************************************************/
 610
 611 void
 612 acpi_ns_dump_objects(acpi_object_type type,
 613                      u8 display_type,
 614                      u32 max_depth,
 615                      acpi_owner_id owner_id, acpi_handle start_handle)
 616 {
 617         struct acpi_walk_info info;
 618
 619         ACPI_FUNCTION_ENTRY();
 620
 621         info.debug_level = ACPI_LV_TABLES;
 622         info.owner_id = owner_id;
 623         info.display_type = display_type;
 624
 625         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 626                                      ACPI_NS_WALK_NO_UNLOCK,
 627                                      acpi_ns_dump_one_object, (void *)&info,
 628                                      NULL);
 629 }
 630 #endif                          /* ACPI_FUTURE_USAGE */
 631
 632 /*******************************************************************************
 633  *
 634  * FUNCTION:    acpi_ns_dump_entry
 635  *
 636  * PARAMETERS:  Handle              - Node to be dumped
 637  *              debug_level         - Output level
 638  *
 639  * RETURN:      None
 640  *
 641  * DESCRIPTION: Dump a single Node
 642  *
 643  ******************************************************************************/
 644
 645 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
 646 {
 647         struct acpi_walk_info info;
 648
 649         ACPI_FUNCTION_ENTRY();
 650
 651         info.debug_level = debug_level;
 652         info.owner_id = ACPI_OWNER_ID_MAX;
 653         info.display_type = ACPI_DISPLAY_SUMMARY;
 654
 655         (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
 656 }
 657
 658 #ifdef ACPI_ASL_COMPILER
 659 /*******************************************************************************
 660  *
 661  * FUNCTION:    acpi_ns_dump_tables
 662  *
 663  * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 664  *                                    NS_ALL to dump the entire namespace
 665  *              max_depth           - Maximum depth of dump.  Use INT_MAX
 666  *                                    for an effectively unlimited depth.
 667  *
 668  * RETURN:      None
 669  *
 670  * DESCRIPTION: Dump the name space, or a portion of it.
 671  *
 672  ******************************************************************************/
 673
 674 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 675 {
 676         acpi_handle search_handle = search_base;
 677
 678         ACPI_FUNCTION_TRACE(ns_dump_tables);
 679
 680         if (!acpi_gbl_root_node) {
 681                 /*
 682                  * If the name space has not been initialized,
 683                  * there is nothing to dump.
 684                  */
 685                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
 686                                   "namespace not initialized!\n"));
 687                 return_VOID;
 688         }
 689
 690         if (ACPI_NS_ALL == search_base) {
 691
 692                 /* Entire namespace */
 693
 694                 search_handle = acpi_gbl_root_node;
 695                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
 696         }
 697
 698         acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
 699                              ACPI_OWNER_ID_MAX, search_handle);
 700         return_VOID;
 701 }
 702 #endif                          /* _ACPI_ASL_COMPILER */
 703 #endif                          /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */