drivers/acpi/namespace/nsdump.c

   1 /******************************************************************************
   2  *
   3  * Module Name: nsdump - table dumping routines for debug
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2005, 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                 /* Indent the object according to the level */
 195
 196                 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
 197
 198                 /* Check the node type and name */
 199
 200                 if (type > ACPI_TYPE_LOCAL_MAX) {
 201                         ACPI_REPORT_WARNING(("Invalid ACPI Type %08X\n", type));
 202                 }
 203
 204                 if (!acpi_ut_valid_acpi_name(this_node->name.integer)) {
 205                         ACPI_REPORT_WARNING(("Invalid ACPI Name %08X\n",
 206                                              this_node->name.integer));
 207                 }
 208
 209                 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
 210         }
 211
 212         /*
 213          * Now we can print out the pertinent information
 214          */
 215         acpi_os_printf(" %-12s %p %2.2X ",
 216                        acpi_ut_get_type_name(type), this_node,
 217                        this_node->owner_id);
 218
 219         dbg_level = acpi_dbg_level;
 220         acpi_dbg_level = 0;
 221         obj_desc = acpi_ns_get_attached_object(this_node);
 222         acpi_dbg_level = dbg_level;
 223
 224         switch (info->display_type & ACPI_DISPLAY_MASK) {
 225         case ACPI_DISPLAY_SUMMARY:
 226
 227                 if (!obj_desc) {
 228                         /* No attached object, we are done */
 229
 230                         acpi_os_printf("\n");
 231                         return (AE_OK);
 232                 }
 233
 234                 switch (type) {
 235                 case ACPI_TYPE_PROCESSOR:
 236
 237                         acpi_os_printf("ID %X Len %.4X Addr %p\n",
 238                                        obj_desc->processor.proc_id,
 239                                        obj_desc->processor.length,
 240                                        (char *)obj_desc->processor.address);
 241                         break;
 242
 243                 case ACPI_TYPE_DEVICE:
 244
 245                         acpi_os_printf("Notify Object: %p\n", obj_desc);
 246                         break;
 247
 248                 case ACPI_TYPE_METHOD:
 249
 250                         acpi_os_printf("Args %X Len %.4X Aml %p\n",
 251                                        (u32) obj_desc->method.param_count,
 252                                        obj_desc->method.aml_length,
 253                                        obj_desc->method.aml_start);
 254                         break;
 255
 256                 case ACPI_TYPE_INTEGER:
 257
 258                         acpi_os_printf("= %8.8X%8.8X\n",
 259                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 260                                                           value));
 261                         break;
 262
 263                 case ACPI_TYPE_PACKAGE:
 264
 265                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 266                                 acpi_os_printf("Elements %.2X\n",
 267                                                obj_desc->package.count);
 268                         } else {
 269                                 acpi_os_printf("[Length not yet evaluated]\n");
 270                         }
 271                         break;
 272
 273                 case ACPI_TYPE_BUFFER:
 274
 275                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 276                                 acpi_os_printf("Len %.2X",
 277                                                obj_desc->buffer.length);
 278
 279                                 /* Dump some of the buffer */
 280
 281                                 if (obj_desc->buffer.length > 0) {
 282                                         acpi_os_printf(" =");
 283                                         for (i = 0;
 284                                              (i < obj_desc->buffer.length
 285                                               && i < 12); i++) {
 286                                                 acpi_os_printf(" %.2hX",
 287                                                                obj_desc->buffer.
 288                                                                pointer[i]);
 289                                         }
 290                                 }
 291                                 acpi_os_printf("\n");
 292                         } else {
 293                                 acpi_os_printf("[Length not yet evaluated]\n");
 294                         }
 295                         break;
 296
 297                 case ACPI_TYPE_STRING:
 298
 299                         acpi_os_printf("Len %.2X ", obj_desc->string.length);
 300                         acpi_ut_print_string(obj_desc->string.pointer, 32);
 301                         acpi_os_printf("\n");
 302                         break;
 303
 304                 case ACPI_TYPE_REGION:
 305
 306                         acpi_os_printf("[%s]",
 307                                        acpi_ut_get_region_name(obj_desc->region.
 308                                                                space_id));
 309                         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
 310                                 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
 311                                                ACPI_FORMAT_UINT64(obj_desc->
 312                                                                   region.
 313                                                                   address),
 314                                                obj_desc->region.length);
 315                         } else {
 316                                 acpi_os_printf
 317                                     (" [Address/Length not yet evaluated]\n");
 318                         }
 319                         break;
 320
 321                 case ACPI_TYPE_LOCAL_REFERENCE:
 322
 323                         acpi_os_printf("[%s]\n",
 324                                        acpi_ps_get_opcode_name(obj_desc->
 325                                                                reference.
 326                                                                opcode));
 327                         break;
 328
 329                 case ACPI_TYPE_BUFFER_FIELD:
 330
 331                         if (obj_desc->buffer_field.buffer_obj &&
 332                             obj_desc->buffer_field.buffer_obj->buffer.node) {
 333                                 acpi_os_printf("Buf [%4.4s]",
 334                                                acpi_ut_get_node_name(obj_desc->
 335                                                                      buffer_field.
 336                                                                      buffer_obj->
 337                                                                      buffer.
 338                                                                      node));
 339                         }
 340                         break;
 341
 342                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 343
 344                         acpi_os_printf("Rgn [%4.4s]",
 345                                        acpi_ut_get_node_name(obj_desc->
 346                                                              common_field.
 347                                                              region_obj->region.
 348                                                              node));
 349                         break;
 350
 351                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 352
 353                         acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
 354                                        acpi_ut_get_node_name(obj_desc->
 355                                                              common_field.
 356                                                              region_obj->region.
 357                                                              node),
 358                                        acpi_ut_get_node_name(obj_desc->
 359                                                              bank_field.
 360                                                              bank_obj->
 361                                                              common_field.
 362                                                              node));
 363                         break;
 364
 365                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 366
 367                         acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
 368                                        acpi_ut_get_node_name(obj_desc->
 369                                                              index_field.
 370                                                              index_obj->
 371                                                              common_field.node),
 372                                        acpi_ut_get_node_name(obj_desc->
 373                                                              index_field.
 374                                                              data_obj->
 375                                                              common_field.
 376                                                              node));
 377                         break;
 378
 379                 case ACPI_TYPE_LOCAL_ALIAS:
 380                 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
 381
 382                         acpi_os_printf("Target %4.4s (%p)\n",
 383                                        acpi_ut_get_node_name(obj_desc),
 384                                        obj_desc);
 385                         break;
 386
 387                 default:
 388
 389                         acpi_os_printf("Object %p\n", obj_desc);
 390                         break;
 391                 }
 392
 393                 /* Common field handling */
 394
 395                 switch (type) {
 396                 case ACPI_TYPE_BUFFER_FIELD:
 397                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 398                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 399                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 400
 401                         acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
 402                                        (obj_desc->common_field.
 403                                         base_byte_offset * 8)
 404                                        +
 405                                        obj_desc->common_field.
 406                                        start_field_bit_offset,
 407                                        obj_desc->common_field.bit_length,
 408                                        obj_desc->common_field.
 409                                        access_byte_width);
 410                         break;
 411
 412                 default:
 413                         break;
 414                 }
 415                 break;
 416
 417         case ACPI_DISPLAY_OBJECTS:
 418
 419                 acpi_os_printf("O:%p", obj_desc);
 420                 if (!obj_desc) {
 421                         /* No attached object, we are done */
 422
 423                         acpi_os_printf("\n");
 424                         return (AE_OK);
 425                 }
 426
 427                 acpi_os_printf("(R%d)", obj_desc->common.reference_count);
 428
 429                 switch (type) {
 430                 case ACPI_TYPE_METHOD:
 431
 432                         /* Name is a Method and its AML offset/length are set */
 433
 434                         acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
 435                                        obj_desc->method.aml_length);
 436                         break;
 437
 438                 case ACPI_TYPE_INTEGER:
 439
 440                         acpi_os_printf(" I:%8.8X8.8%X\n",
 441                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 442                                                           value));
 443                         break;
 444
 445                 case ACPI_TYPE_STRING:
 446
 447                         acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
 448                                        obj_desc->string.length);
 449                         break;
 450
 451                 case ACPI_TYPE_BUFFER:
 452
 453                         acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
 454                                        obj_desc->buffer.length);
 455                         break;
 456
 457                 default:
 458
 459                         acpi_os_printf("\n");
 460                         break;
 461                 }
 462                 break;
 463
 464         default:
 465                 acpi_os_printf("\n");
 466                 break;
 467         }
 468
 469         /* If debug turned off, done */
 470
 471         if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
 472                 return (AE_OK);
 473         }
 474
 475         /* If there is an attached object, display it */
 476
 477         dbg_level = acpi_dbg_level;
 478         acpi_dbg_level = 0;
 479         obj_desc = acpi_ns_get_attached_object(this_node);
 480         acpi_dbg_level = dbg_level;
 481
 482         /* Dump attached objects */
 483
 484         while (obj_desc) {
 485                 obj_type = ACPI_TYPE_INVALID;
 486                 acpi_os_printf("Attached Object %p: ", obj_desc);
 487
 488                 /* Decode the type of attached object and dump the contents */
 489
 490                 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
 491                 case ACPI_DESC_TYPE_NAMED:
 492
 493                         acpi_os_printf("(Ptr to Node)\n");
 494                         bytes_to_dump = sizeof(struct acpi_namespace_node);
 495                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 496                         break;
 497
 498                 case ACPI_DESC_TYPE_OPERAND:
 499
 500                         obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
 501
 502                         if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 503                                 acpi_os_printf
 504                                     ("(Ptr to ACPI Object type %X [UNKNOWN])\n",
 505                                      obj_type);
 506                                 bytes_to_dump = 32;
 507                         } else {
 508                                 acpi_os_printf
 509                                     ("(Ptr to ACPI Object type %X [%s])\n",
 510                                      obj_type, acpi_ut_get_type_name(obj_type));
 511                                 bytes_to_dump =
 512                                     sizeof(union acpi_operand_object);
 513                         }
 514
 515                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 516                         break;
 517
 518                 default:
 519
 520                         break;
 521                 }
 522
 523                 /* If value is NOT an internal object, we are done */
 524
 525                 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
 526                     ACPI_DESC_TYPE_OPERAND) {
 527                         goto cleanup;
 528                 }
 529
 530                 /*
 531                  * Valid object, get the pointer to next level, if any
 532                  */
 533                 switch (obj_type) {
 534                 case ACPI_TYPE_BUFFER:
 535                 case ACPI_TYPE_STRING:
 536                         /*
 537                          * NOTE: takes advantage of common fields between string/buffer
 538                          */
 539                         bytes_to_dump = obj_desc->string.length;
 540                         obj_desc = (void *)obj_desc->string.pointer;
 541                         acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 542                                        obj_desc, bytes_to_dump);
 543                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 544                         goto cleanup;
 545
 546                 case ACPI_TYPE_BUFFER_FIELD:
 547                         obj_desc =
 548                             (union acpi_operand_object *)obj_desc->buffer_field.
 549                             buffer_obj;
 550                         break;
 551
 552                 case ACPI_TYPE_PACKAGE:
 553                         obj_desc = (void *)obj_desc->package.elements;
 554                         break;
 555
 556                 case ACPI_TYPE_METHOD:
 557                         obj_desc = (void *)obj_desc->method.aml_start;
 558                         break;
 559
 560                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 561                         obj_desc = (void *)obj_desc->field.region_obj;
 562                         break;
 563
 564                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 565                         obj_desc = (void *)obj_desc->bank_field.region_obj;
 566                         break;
 567
 568                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 569                         obj_desc = (void *)obj_desc->index_field.index_obj;
 570                         break;
 571
 572                 default:
 573                         goto cleanup;
 574                 }
 575
 576                 obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
 577         }
 578
 579       cleanup:
 580         acpi_os_printf("\n");
 581         return (AE_OK);
 582 }
 583
 584 #ifdef ACPI_FUTURE_USAGE
 585 /*******************************************************************************
 586  *
 587  * FUNCTION:    acpi_ns_dump_objects
 588  *
 589  * PARAMETERS:  Type                - Object type to be dumped
 590  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 591  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 592  *                                    for an effectively unlimited depth.
 593  *              owner_id            - Dump only objects owned by this ID.  Use
 594  *                                    ACPI_UINT32_MAX to match all owners.
 595  *              start_handle        - Where in namespace to start/end search
 596  *
 597  * RETURN:      None
 598  *
 599  * DESCRIPTION: Dump typed objects within the loaded namespace.
 600  *              Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 601  *
 602  ******************************************************************************/
 603
 604 void
 605 acpi_ns_dump_objects(acpi_object_type type,
 606                      u8 display_type,
 607                      u32 max_depth,
 608                      acpi_owner_id owner_id, acpi_handle start_handle)
 609 {
 610         struct acpi_walk_info info;
 611
 612         ACPI_FUNCTION_ENTRY();
 613
 614         info.debug_level = ACPI_LV_TABLES;
 615         info.owner_id = owner_id;
 616         info.display_type = display_type;
 617
 618         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 619                                      ACPI_NS_WALK_NO_UNLOCK,
 620                                      acpi_ns_dump_one_object, (void *)&info,
 621                                      NULL);
 622 }
 623 #endif                          /* ACPI_FUTURE_USAGE */
 624
 625 /*******************************************************************************
 626  *
 627  * FUNCTION:    acpi_ns_dump_entry
 628  *
 629  * PARAMETERS:  Handle              - Node to be dumped
 630  *              debug_level         - Output level
 631  *
 632  * RETURN:      None
 633  *
 634  * DESCRIPTION: Dump a single Node
 635  *
 636  ******************************************************************************/
 637
 638 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
 639 {
 640         struct acpi_walk_info info;
 641
 642         ACPI_FUNCTION_ENTRY();
 643
 644         info.debug_level = debug_level;
 645         info.owner_id = ACPI_OWNER_ID_MAX;
 646         info.display_type = ACPI_DISPLAY_SUMMARY;
 647
 648         (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
 649 }
 650
 651 #ifdef ACPI_ASL_COMPILER
 652 /*******************************************************************************
 653  *
 654  * FUNCTION:    acpi_ns_dump_tables
 655  *
 656  * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 657  *                                    NS_ALL to dump the entire namespace
 658  *              max_depth           - Maximum depth of dump.  Use INT_MAX
 659  *                                    for an effectively unlimited depth.
 660  *
 661  * RETURN:      None
 662  *
 663  * DESCRIPTION: Dump the name space, or a portion of it.
 664  *
 665  ******************************************************************************/
 666
 667 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 668 {
 669         acpi_handle search_handle = search_base;
 670
 671         ACPI_FUNCTION_TRACE("ns_dump_tables");
 672
 673         if (!acpi_gbl_root_node) {
 674                 /*
 675                  * If the name space has not been initialized,
 676                  * there is nothing to dump.
 677                  */
 678                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
 679                                   "namespace not initialized!\n"));
 680                 return_VOID;
 681         }
 682
 683         if (ACPI_NS_ALL == search_base) {
 684                 /* Entire namespace */
 685
 686                 search_handle = acpi_gbl_root_node;
 687                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
 688         }
 689
 690         acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
 691                              ACPI_OWNER_ID_MAX, search_handle);
 692         return_VOID;
 693 }
 694 #endif                          /* _ACPI_ASL_COMPILER */
 695 #endif                          /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */