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                         ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X",
 208                                       this_node->name.integer));
 209                 }
 210
 211                 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
 212         }
 213
 214         /*
 215          * Now we can print out the pertinent information
 216          */
 217         acpi_os_printf(" %-12s %p %2.2X ",
 218                        acpi_ut_get_type_name(type), this_node,
 219                        this_node->owner_id);
 220
 221         dbg_level = acpi_dbg_level;
 222         acpi_dbg_level = 0;
 223         obj_desc = acpi_ns_get_attached_object(this_node);
 224         acpi_dbg_level = dbg_level;
 225
 226         switch (info->display_type & ACPI_DISPLAY_MASK) {
 227         case ACPI_DISPLAY_SUMMARY:
 228
 229                 if (!obj_desc) {
 230
 231                         /* No attached object, we are done */
 232
 233                         acpi_os_printf("\n");
 234                         return (AE_OK);
 235                 }
 236
 237                 switch (type) {
 238                 case ACPI_TYPE_PROCESSOR:
 239
 240                         acpi_os_printf("ID %X Len %.4X Addr %p\n",
 241                                        obj_desc->processor.proc_id,
 242                                        obj_desc->processor.length,
 243                                        (char *)obj_desc->processor.address);
 244                         break;
 245
 246                 case ACPI_TYPE_DEVICE:
 247
 248                         acpi_os_printf("Notify Object: %p\n", obj_desc);
 249                         break;
 250
 251                 case ACPI_TYPE_METHOD:
 252
 253                         acpi_os_printf("Args %X Len %.4X Aml %p\n",
 254                                        (u32) obj_desc->method.param_count,
 255                                        obj_desc->method.aml_length,
 256                                        obj_desc->method.aml_start);
 257                         break;
 258
 259                 case ACPI_TYPE_INTEGER:
 260
 261                         acpi_os_printf("= %8.8X%8.8X\n",
 262                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 263                                                           value));
 264                         break;
 265
 266                 case ACPI_TYPE_PACKAGE:
 267
 268                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 269                                 acpi_os_printf("Elements %.2X\n",
 270                                                obj_desc->package.count);
 271                         } else {
 272                                 acpi_os_printf("[Length not yet evaluated]\n");
 273                         }
 274                         break;
 275
 276                 case ACPI_TYPE_BUFFER:
 277
 278                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 279                                 acpi_os_printf("Len %.2X",
 280                                                obj_desc->buffer.length);
 281
 282                                 /* Dump some of the buffer */
 283
 284                                 if (obj_desc->buffer.length > 0) {
 285                                         acpi_os_printf(" =");
 286                                         for (i = 0;
 287                                              (i < obj_desc->buffer.length
 288                                               && i < 12); i++) {
 289                                                 acpi_os_printf(" %.2hX",
 290                                                                obj_desc->buffer.
 291                                                                pointer[i]);
 292                                         }
 293                                 }
 294                                 acpi_os_printf("\n");
 295                         } else {
 296                                 acpi_os_printf("[Length not yet evaluated]\n");
 297                         }
 298                         break;
 299
 300                 case ACPI_TYPE_STRING:
 301
 302                         acpi_os_printf("Len %.2X ", obj_desc->string.length);
 303                         acpi_ut_print_string(obj_desc->string.pointer, 32);
 304                         acpi_os_printf("\n");
 305                         break;
 306
 307                 case ACPI_TYPE_REGION:
 308
 309                         acpi_os_printf("[%s]",
 310                                        acpi_ut_get_region_name(obj_desc->region.
 311                                                                space_id));
 312                         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
 313                                 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
 314                                                ACPI_FORMAT_UINT64(obj_desc->
 315                                                                   region.
 316                                                                   address),
 317                                                obj_desc->region.length);
 318                         } else {
 319                                 acpi_os_printf
 320                                     (" [Address/Length not yet evaluated]\n");
 321                         }
 322                         break;
 323
 324                 case ACPI_TYPE_LOCAL_REFERENCE:
 325
 326                         acpi_os_printf("[%s]\n",
 327                                        acpi_ps_get_opcode_name(obj_desc->
 328                                                                reference.
 329                                                                opcode));
 330                         break;
 331
 332                 case ACPI_TYPE_BUFFER_FIELD:
 333
 334                         if (obj_desc->buffer_field.buffer_obj &&
 335                             obj_desc->buffer_field.buffer_obj->buffer.node) {
 336                                 acpi_os_printf("Buf [%4.4s]",
 337                                                acpi_ut_get_node_name(obj_desc->
 338                                                                      buffer_field.
 339                                                                      buffer_obj->
 340                                                                      buffer.
 341                                                                      node));
 342                         }
 343                         break;
 344
 345                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 346
 347                         acpi_os_printf("Rgn [%4.4s]",
 348                                        acpi_ut_get_node_name(obj_desc->
 349                                                              common_field.
 350                                                              region_obj->region.
 351                                                              node));
 352                         break;
 353
 354                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 355
 356                         acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
 357                                        acpi_ut_get_node_name(obj_desc->
 358                                                              common_field.
 359                                                              region_obj->region.
 360                                                              node),
 361                                        acpi_ut_get_node_name(obj_desc->
 362                                                              bank_field.
 363                                                              bank_obj->
 364                                                              common_field.
 365                                                              node));
 366                         break;
 367
 368                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 369
 370                         acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
 371                                        acpi_ut_get_node_name(obj_desc->
 372                                                              index_field.
 373                                                              index_obj->
 374                                                              common_field.node),
 375                                        acpi_ut_get_node_name(obj_desc->
 376                                                              index_field.
 377                                                              data_obj->
 378                                                              common_field.
 379                                                              node));
 380                         break;
 381
 382                 case ACPI_TYPE_LOCAL_ALIAS:
 383                 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
 384
 385                         acpi_os_printf("Target %4.4s (%p)\n",
 386                                        acpi_ut_get_node_name(obj_desc),
 387                                        obj_desc);
 388                         break;
 389
 390                 default:
 391
 392                         acpi_os_printf("Object %p\n", obj_desc);
 393                         break;
 394                 }
 395
 396                 /* Common field handling */
 397
 398                 switch (type) {
 399                 case ACPI_TYPE_BUFFER_FIELD:
 400                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 401                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 402                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 403
 404                         acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
 405                                        (obj_desc->common_field.
 406                                         base_byte_offset * 8)
 407                                        +
 408                                        obj_desc->common_field.
 409                                        start_field_bit_offset,
 410                                        obj_desc->common_field.bit_length,
 411                                        obj_desc->common_field.
 412                                        access_byte_width);
 413                         break;
 414
 415                 default:
 416                         break;
 417                 }
 418                 break;
 419
 420         case ACPI_DISPLAY_OBJECTS:
 421
 422                 acpi_os_printf("O:%p", obj_desc);
 423                 if (!obj_desc) {
 424
 425                         /* No attached object, we are done */
 426
 427                         acpi_os_printf("\n");
 428                         return (AE_OK);
 429                 }
 430
 431                 acpi_os_printf("(R%d)", obj_desc->common.reference_count);
 432
 433                 switch (type) {
 434                 case ACPI_TYPE_METHOD:
 435
 436                         /* Name is a Method and its AML offset/length are set */
 437
 438                         acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
 439                                        obj_desc->method.aml_length);
 440                         break;
 441
 442                 case ACPI_TYPE_INTEGER:
 443
 444                         acpi_os_printf(" I:%8.8X8.8%X\n",
 445                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 446                                                           value));
 447                         break;
 448
 449                 case ACPI_TYPE_STRING:
 450
 451                         acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
 452                                        obj_desc->string.length);
 453                         break;
 454
 455                 case ACPI_TYPE_BUFFER:
 456
 457                         acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
 458                                        obj_desc->buffer.length);
 459                         break;
 460
 461                 default:
 462
 463                         acpi_os_printf("\n");
 464                         break;
 465                 }
 466                 break;
 467
 468         default:
 469                 acpi_os_printf("\n");
 470                 break;
 471         }
 472
 473         /* If debug turned off, done */
 474
 475         if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
 476                 return (AE_OK);
 477         }
 478
 479         /* If there is an attached object, display it */
 480
 481         dbg_level = acpi_dbg_level;
 482         acpi_dbg_level = 0;
 483         obj_desc = acpi_ns_get_attached_object(this_node);
 484         acpi_dbg_level = dbg_level;
 485
 486         /* Dump attached objects */
 487
 488         while (obj_desc) {
 489                 obj_type = ACPI_TYPE_INVALID;
 490                 acpi_os_printf("Attached Object %p: ", obj_desc);
 491
 492                 /* Decode the type of attached object and dump the contents */
 493
 494                 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
 495                 case ACPI_DESC_TYPE_NAMED:
 496
 497                         acpi_os_printf("(Ptr to Node)\n");
 498                         bytes_to_dump = sizeof(struct acpi_namespace_node);
 499                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 500                         break;
 501
 502                 case ACPI_DESC_TYPE_OPERAND:
 503
 504                         obj_type = ACPI_GET_OBJECT_TYPE(obj_desc);
 505
 506                         if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 507                                 acpi_os_printf
 508                                     ("(Ptr to ACPI Object type %X [UNKNOWN])\n",
 509                                      obj_type);
 510                                 bytes_to_dump = 32;
 511                         } else {
 512                                 acpi_os_printf
 513                                     ("(Ptr to ACPI Object type %X [%s])\n",
 514                                      obj_type, acpi_ut_get_type_name(obj_type));
 515                                 bytes_to_dump =
 516                                     sizeof(union acpi_operand_object);
 517                         }
 518
 519                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 520                         break;
 521
 522                 default:
 523
 524                         break;
 525                 }
 526
 527                 /* If value is NOT an internal object, we are done */
 528
 529                 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
 530                     ACPI_DESC_TYPE_OPERAND) {
 531                         goto cleanup;
 532                 }
 533
 534                 /*
 535                  * Valid object, get the pointer to next level, if any
 536                  */
 537                 switch (obj_type) {
 538                 case ACPI_TYPE_BUFFER:
 539                 case ACPI_TYPE_STRING:
 540                         /*
 541                          * NOTE: takes advantage of common fields between string/buffer
 542                          */
 543                         bytes_to_dump = obj_desc->string.length;
 544                         obj_desc = (void *)obj_desc->string.pointer;
 545                         acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 546                                        obj_desc, bytes_to_dump);
 547                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 548                         goto cleanup;
 549
 550                 case ACPI_TYPE_BUFFER_FIELD:
 551                         obj_desc =
 552                             (union acpi_operand_object *)obj_desc->buffer_field.
 553                             buffer_obj;
 554                         break;
 555
 556                 case ACPI_TYPE_PACKAGE:
 557                         obj_desc = (void *)obj_desc->package.elements;
 558                         break;
 559
 560                 case ACPI_TYPE_METHOD:
 561                         obj_desc = (void *)obj_desc->method.aml_start;
 562                         break;
 563
 564                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 565                         obj_desc = (void *)obj_desc->field.region_obj;
 566                         break;
 567
 568                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 569                         obj_desc = (void *)obj_desc->bank_field.region_obj;
 570                         break;
 571
 572                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 573                         obj_desc = (void *)obj_desc->index_field.index_obj;
 574                         break;
 575
 576                 default:
 577                         goto cleanup;
 578                 }
 579
 580                 obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
 581         }
 582
 583       cleanup:
 584         acpi_os_printf("\n");
 585         return (AE_OK);
 586 }
 587
 588 #ifdef ACPI_FUTURE_USAGE
 589 /*******************************************************************************
 590  *
 591  * FUNCTION:    acpi_ns_dump_objects
 592  *
 593  * PARAMETERS:  Type                - Object type to be dumped
 594  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 595  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 596  *                                    for an effectively unlimited depth.
 597  *              owner_id            - Dump only objects owned by this ID.  Use
 598  *                                    ACPI_UINT32_MAX to match all owners.
 599  *              start_handle        - Where in namespace to start/end search
 600  *
 601  * RETURN:      None
 602  *
 603  * DESCRIPTION: Dump typed objects within the loaded namespace.
 604  *              Uses acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 605  *
 606  ******************************************************************************/
 607
 608 void
 609 acpi_ns_dump_objects(acpi_object_type type,
 610                      u8 display_type,
 611                      u32 max_depth,
 612                      acpi_owner_id owner_id, acpi_handle start_handle)
 613 {
 614         struct acpi_walk_info info;
 615
 616         ACPI_FUNCTION_ENTRY();
 617
 618         info.debug_level = ACPI_LV_TABLES;
 619         info.owner_id = owner_id;
 620         info.display_type = display_type;
 621
 622         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 623                                      ACPI_NS_WALK_NO_UNLOCK,
 624                                      acpi_ns_dump_one_object, (void *)&info,
 625                                      NULL);
 626 }
 627 #endif                          /* ACPI_FUTURE_USAGE */
 628
 629 /*******************************************************************************
 630  *
 631  * FUNCTION:    acpi_ns_dump_entry
 632  *
 633  * PARAMETERS:  Handle              - Node to be dumped
 634  *              debug_level         - Output level
 635  *
 636  * RETURN:      None
 637  *
 638  * DESCRIPTION: Dump a single Node
 639  *
 640  ******************************************************************************/
 641
 642 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
 643 {
 644         struct acpi_walk_info info;
 645
 646         ACPI_FUNCTION_ENTRY();
 647
 648         info.debug_level = debug_level;
 649         info.owner_id = ACPI_OWNER_ID_MAX;
 650         info.display_type = ACPI_DISPLAY_SUMMARY;
 651
 652         (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
 653 }
 654
 655 #ifdef ACPI_ASL_COMPILER
 656 /*******************************************************************************
 657  *
 658  * FUNCTION:    acpi_ns_dump_tables
 659  *
 660  * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 661  *                                    NS_ALL to dump the entire namespace
 662  *              max_depth           - Maximum depth of dump.  Use INT_MAX
 663  *                                    for an effectively unlimited depth.
 664  *
 665  * RETURN:      None
 666  *
 667  * DESCRIPTION: Dump the name space, or a portion of it.
 668  *
 669  ******************************************************************************/
 670
 671 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 672 {
 673         acpi_handle search_handle = search_base;
 674
 675         ACPI_FUNCTION_TRACE("ns_dump_tables");
 676
 677         if (!acpi_gbl_root_node) {
 678                 /*
 679                  * If the name space has not been initialized,
 680                  * there is nothing to dump.
 681                  */
 682                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
 683                                   "namespace not initialized!\n"));
 684                 return_VOID;
 685         }
 686
 687         if (ACPI_NS_ALL == search_base) {
 688
 689                 /* Entire namespace */
 690
 691                 search_handle = acpi_gbl_root_node;
 692                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
 693         }
 694
 695         acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
 696                              ACPI_OWNER_ID_MAX, search_handle);
 697         return_VOID;
 698 }
 699 #endif                          /* _ACPI_ASL_COMPILER */
 700 #endif                          /* defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) */