drivers/acpi/acpica/nsdump.c

   1 /******************************************************************************
   2  *
   3  * Module Name: nsdump - table dumping routines for debug
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2017, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #include <acpi/acpi.h>
  45 #include "accommon.h"
  46 #include "acnamesp.h"
  47 #include <acpi/acoutput.h>
  48
  49 #define _COMPONENT          ACPI_NAMESPACE
  50 ACPI_MODULE_NAME("nsdump")
  51
  52 /* Local prototypes */
  53 #ifdef ACPI_OBSOLETE_FUNCTIONS
  54 void acpi_ns_dump_root_devices(void);
  55
  56 static acpi_status
  57 acpi_ns_dump_one_device(acpi_handle obj_handle,
  58                         u32 level, void *context, void **return_value);
  59 #endif
  60
  61 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
  62
  63 static acpi_status
  64 acpi_ns_dump_one_object_path(acpi_handle obj_handle,
  65                              u32 level, void *context, void **return_value);
  66
  67 static acpi_status
  68 acpi_ns_get_max_depth(acpi_handle obj_handle,
  69                       u32 level, void *context, void **return_value);
  70
  71 /*******************************************************************************
  72  *
  73  * FUNCTION:    acpi_ns_print_pathname
  74  *
  75  * PARAMETERS:  num_segments        - Number of ACPI name segments
  76  *              pathname            - The compressed (internal) path
  77  *
  78  * RETURN:      None
  79  *
  80  * DESCRIPTION: Print an object's full namespace pathname
  81  *
  82  ******************************************************************************/
  83
  84 void acpi_ns_print_pathname(u32 num_segments, const char *pathname)
  85 {
  86         u32 i;
  87
  88         ACPI_FUNCTION_NAME(ns_print_pathname);
  89
  90         /* Check if debug output enabled */
  91
  92         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_NAMES, ACPI_NAMESPACE)) {
  93                 return;
  94         }
  95
  96         /* Print the entire name */
  97
  98         ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
  99
 100         while (num_segments) {
 101                 for (i = 0; i < 4; i++) {
 102                         isprint((int)pathname[i]) ?
 103                             acpi_os_printf("%c", pathname[i]) :
 104                             acpi_os_printf("?");
 105                 }
 106
 107                 pathname += ACPI_NAME_SIZE;
 108                 num_segments--;
 109                 if (num_segments) {
 110                         acpi_os_printf(".");
 111                 }
 112         }
 113
 114         acpi_os_printf("]\n");
 115 }
 116
 117 #ifdef ACPI_OBSOLETE_FUNCTIONS
 118 /* Not used at this time, perhaps later */
 119
 120 /*******************************************************************************
 121  *
 122  * FUNCTION:    acpi_ns_dump_pathname
 123  *
 124  * PARAMETERS:  handle              - Object
 125  *              msg                 - Prefix message
 126  *              level               - Desired debug level
 127  *              component           - Caller's component ID
 128  *
 129  * RETURN:      None
 130  *
 131  * DESCRIPTION: Print an object's full namespace pathname
 132  *              Manages allocation/freeing of a pathname buffer
 133  *
 134  ******************************************************************************/
 135
 136 void
 137 acpi_ns_dump_pathname(acpi_handle handle,
 138                       const char *msg, u32 level, u32 component)
 139 {
 140
 141         ACPI_FUNCTION_TRACE(ns_dump_pathname);
 142
 143         /* Do this only if the requested debug level and component are enabled */
 144
 145         if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
 146                 return_VOID;
 147         }
 148
 149         /* Convert handle to a full pathname and print it (with supplied message) */
 150
 151         acpi_ns_print_node_pathname(handle, msg);
 152         acpi_os_printf("\n");
 153         return_VOID;
 154 }
 155 #endif
 156
 157 /*******************************************************************************
 158  *
 159  * FUNCTION:    acpi_ns_dump_one_object
 160  *
 161  * PARAMETERS:  obj_handle          - Node to be dumped
 162  *              level               - Nesting level of the handle
 163  *              context             - Passed into walk_namespace
 164  *              return_value        - Not used
 165  *
 166  * RETURN:      Status
 167  *
 168  * DESCRIPTION: Dump a single Node
 169  *              This procedure is a user_function called by acpi_ns_walk_namespace.
 170  *
 171  ******************************************************************************/
 172
 173 acpi_status
 174 acpi_ns_dump_one_object(acpi_handle obj_handle,
 175                         u32 level, void *context, void **return_value)
 176 {
 177         struct acpi_walk_info *info = (struct acpi_walk_info *)context;
 178         struct acpi_namespace_node *this_node;
 179         union acpi_operand_object *obj_desc = NULL;
 180         acpi_object_type obj_type;
 181         acpi_object_type type;
 182         u32 bytes_to_dump;
 183         u32 dbg_level;
 184         u32 i;
 185
 186         ACPI_FUNCTION_NAME(ns_dump_one_object);
 187
 188         /* Is output enabled? */
 189
 190         if (!(acpi_dbg_level & info->debug_level)) {
 191                 return (AE_OK);
 192         }
 193
 194         if (!obj_handle) {
 195                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
 196                 return (AE_OK);
 197         }
 198
 199         this_node = acpi_ns_validate_handle(obj_handle);
 200         if (!this_node) {
 201                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
 202                                   obj_handle));
 203                 return (AE_OK);
 204         }
 205
 206         type = this_node->type;
 207
 208         /* Check if the owner matches */
 209
 210         if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
 211             (info->owner_id != this_node->owner_id)) {
 212                 return (AE_OK);
 213         }
 214
 215         if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
 216
 217                 /* Indent the object according to the level */
 218
 219                 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
 220
 221                 /* Check the node type and name */
 222
 223                 if (type > ACPI_TYPE_LOCAL_MAX) {
 224                         ACPI_WARNING((AE_INFO,
 225                                       "Invalid ACPI Object Type 0x%08X", type));
 226                 }
 227
 228                 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
 229         }
 230
 231         /* Now we can print out the pertinent information */
 232
 233         acpi_os_printf(" %-12s %p %2.2X ",
 234                        acpi_ut_get_type_name(type), this_node,
 235                        this_node->owner_id);
 236
 237         dbg_level = acpi_dbg_level;
 238         acpi_dbg_level = 0;
 239         obj_desc = acpi_ns_get_attached_object(this_node);
 240         acpi_dbg_level = dbg_level;
 241
 242         /* Temp nodes are those nodes created by a control method */
 243
 244         if (this_node->flags & ANOBJ_TEMPORARY) {
 245                 acpi_os_printf("(T) ");
 246         }
 247
 248         switch (info->display_type & ACPI_DISPLAY_MASK) {
 249         case ACPI_DISPLAY_SUMMARY:
 250
 251                 if (!obj_desc) {
 252
 253                         /* No attached object. Some types should always have an object */
 254
 255                         switch (type) {
 256                         case ACPI_TYPE_INTEGER:
 257                         case ACPI_TYPE_PACKAGE:
 258                         case ACPI_TYPE_BUFFER:
 259                         case ACPI_TYPE_STRING:
 260                         case ACPI_TYPE_METHOD:
 261
 262                                 acpi_os_printf("<No attached object>");
 263                                 break;
 264
 265                         default:
 266
 267                                 break;
 268                         }
 269
 270                         acpi_os_printf("\n");
 271                         return (AE_OK);
 272                 }
 273
 274                 switch (type) {
 275                 case ACPI_TYPE_PROCESSOR:
 276
 277                         acpi_os_printf("ID %02X Len %02X Addr %8.8X%8.8X\n",
 278                                        obj_desc->processor.proc_id,
 279                                        obj_desc->processor.length,
 280                                        ACPI_FORMAT_UINT64(obj_desc->processor.
 281                                                           address));
 282                         break;
 283
 284                 case ACPI_TYPE_DEVICE:
 285
 286                         acpi_os_printf("Notify Object: %p\n", obj_desc);
 287                         break;
 288
 289                 case ACPI_TYPE_METHOD:
 290
 291                         acpi_os_printf("Args %X Len %.4X Aml %p\n",
 292                                        (u32) obj_desc->method.param_count,
 293                                        obj_desc->method.aml_length,
 294                                        obj_desc->method.aml_start);
 295                         break;
 296
 297                 case ACPI_TYPE_INTEGER:
 298
 299                         acpi_os_printf("= %8.8X%8.8X\n",
 300                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 301                                                           value));
 302                         break;
 303
 304                 case ACPI_TYPE_PACKAGE:
 305
 306                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 307                                 acpi_os_printf("Elements %.2X\n",
 308                                                obj_desc->package.count);
 309                         } else {
 310                                 acpi_os_printf("[Length not yet evaluated]\n");
 311                         }
 312                         break;
 313
 314                 case ACPI_TYPE_BUFFER:
 315
 316                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 317                                 acpi_os_printf("Len %.2X",
 318                                                obj_desc->buffer.length);
 319
 320                                 /* Dump some of the buffer */
 321
 322                                 if (obj_desc->buffer.length > 0) {
 323                                         acpi_os_printf(" =");
 324                                         for (i = 0;
 325                                              (i < obj_desc->buffer.length
 326                                               && i < 12); i++) {
 327                                                 acpi_os_printf(" %.2hX",
 328                                                                obj_desc->buffer.
 329                                                                pointer[i]);
 330                                         }
 331                                 }
 332                                 acpi_os_printf("\n");
 333                         } else {
 334                                 acpi_os_printf("[Length not yet evaluated]\n");
 335                         }
 336                         break;
 337
 338                 case ACPI_TYPE_STRING:
 339
 340                         acpi_os_printf("Len %.2X ", obj_desc->string.length);
 341                         acpi_ut_print_string(obj_desc->string.pointer, 80);
 342                         acpi_os_printf("\n");
 343                         break;
 344
 345                 case ACPI_TYPE_REGION:
 346
 347                         acpi_os_printf("[%s]",
 348                                        acpi_ut_get_region_name(obj_desc->region.
 349                                                                space_id));
 350                         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
 351                                 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
 352                                                ACPI_FORMAT_UINT64(obj_desc->
 353                                                                   region.
 354                                                                   address),
 355                                                obj_desc->region.length);
 356                         } else {
 357                                 acpi_os_printf
 358                                     (" [Address/Length not yet evaluated]\n");
 359                         }
 360                         break;
 361
 362                 case ACPI_TYPE_LOCAL_REFERENCE:
 363
 364                         acpi_os_printf("[%s]\n",
 365                                        acpi_ut_get_reference_name(obj_desc));
 366                         break;
 367
 368                 case ACPI_TYPE_BUFFER_FIELD:
 369
 370                         if (obj_desc->buffer_field.buffer_obj &&
 371                             obj_desc->buffer_field.buffer_obj->buffer.node) {
 372                                 acpi_os_printf("Buf [%4.4s]",
 373                                                acpi_ut_get_node_name(obj_desc->
 374                                                                      buffer_field.
 375                                                                      buffer_obj->
 376                                                                      buffer.
 377                                                                      node));
 378                         }
 379                         break;
 380
 381                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 382
 383                         acpi_os_printf("Rgn [%4.4s]",
 384                                        acpi_ut_get_node_name(obj_desc->
 385                                                              common_field.
 386                                                              region_obj->region.
 387                                                              node));
 388                         break;
 389
 390                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 391
 392                         acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
 393                                        acpi_ut_get_node_name(obj_desc->
 394                                                              common_field.
 395                                                              region_obj->region.
 396                                                              node),
 397                                        acpi_ut_get_node_name(obj_desc->
 398                                                              bank_field.
 399                                                              bank_obj->
 400                                                              common_field.
 401                                                              node));
 402                         break;
 403
 404                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 405
 406                         acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
 407                                        acpi_ut_get_node_name(obj_desc->
 408                                                              index_field.
 409                                                              index_obj->
 410                                                              common_field.node),
 411                                        acpi_ut_get_node_name(obj_desc->
 412                                                              index_field.
 413                                                              data_obj->
 414                                                              common_field.
 415                                                              node));
 416                         break;
 417
 418                 case ACPI_TYPE_LOCAL_ALIAS:
 419                 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
 420
 421                         acpi_os_printf("Target %4.4s (%p)\n",
 422                                        acpi_ut_get_node_name(obj_desc),
 423                                        obj_desc);
 424                         break;
 425
 426                 default:
 427
 428                         acpi_os_printf("Object %p\n", obj_desc);
 429                         break;
 430                 }
 431
 432                 /* Common field handling */
 433
 434                 switch (type) {
 435                 case ACPI_TYPE_BUFFER_FIELD:
 436                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 437                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 438                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 439
 440                         acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
 441                                        (obj_desc->common_field.
 442                                         base_byte_offset * 8)
 443                                        +
 444                                        obj_desc->common_field.
 445                                        start_field_bit_offset,
 446                                        obj_desc->common_field.bit_length,
 447                                        obj_desc->common_field.
 448                                        access_byte_width);
 449                         break;
 450
 451                 default:
 452
 453                         break;
 454                 }
 455                 break;
 456
 457         case ACPI_DISPLAY_OBJECTS:
 458
 459                 acpi_os_printf("O:%p", obj_desc);
 460                 if (!obj_desc) {
 461
 462                         /* No attached object, we are done */
 463
 464                         acpi_os_printf("\n");
 465                         return (AE_OK);
 466                 }
 467
 468                 acpi_os_printf("(R%u)", obj_desc->common.reference_count);
 469
 470                 switch (type) {
 471                 case ACPI_TYPE_METHOD:
 472
 473                         /* Name is a Method and its AML offset/length are set */
 474
 475                         acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
 476                                        obj_desc->method.aml_length);
 477                         break;
 478
 479                 case ACPI_TYPE_INTEGER:
 480
 481                         acpi_os_printf(" I:%8.8X8.8%X\n",
 482                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 483                                                           value));
 484                         break;
 485
 486                 case ACPI_TYPE_STRING:
 487
 488                         acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
 489                                        obj_desc->string.length);
 490                         break;
 491
 492                 case ACPI_TYPE_BUFFER:
 493
 494                         acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
 495                                        obj_desc->buffer.length);
 496                         break;
 497
 498                 default:
 499
 500                         acpi_os_printf("\n");
 501                         break;
 502                 }
 503                 break;
 504
 505         default:
 506                 acpi_os_printf("\n");
 507                 break;
 508         }
 509
 510         /* If debug turned off, done */
 511
 512         if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
 513                 return (AE_OK);
 514         }
 515
 516         /* If there is an attached object, display it */
 517
 518         dbg_level = acpi_dbg_level;
 519         acpi_dbg_level = 0;
 520         obj_desc = acpi_ns_get_attached_object(this_node);
 521         acpi_dbg_level = dbg_level;
 522
 523         /* Dump attached objects */
 524
 525         while (obj_desc) {
 526                 obj_type = ACPI_TYPE_INVALID;
 527                 acpi_os_printf("Attached Object %p: ", obj_desc);
 528
 529                 /* Decode the type of attached object and dump the contents */
 530
 531                 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
 532                 case ACPI_DESC_TYPE_NAMED:
 533
 534                         acpi_os_printf("(Ptr to Node)\n");
 535                         bytes_to_dump = sizeof(struct acpi_namespace_node);
 536                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 537                         break;
 538
 539                 case ACPI_DESC_TYPE_OPERAND:
 540
 541                         obj_type = obj_desc->common.type;
 542
 543                         if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 544                                 acpi_os_printf
 545                                     ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
 546                                      obj_type);
 547
 548                                 bytes_to_dump = 32;
 549                         } else {
 550                                 acpi_os_printf
 551                                     ("(Pointer to ACPI Object type %.2X [%s])\n",
 552                                      obj_type, acpi_ut_get_type_name(obj_type));
 553
 554                                 bytes_to_dump =
 555                                     sizeof(union acpi_operand_object);
 556                         }
 557
 558                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 559                         break;
 560
 561                 default:
 562
 563                         break;
 564                 }
 565
 566                 /* If value is NOT an internal object, we are done */
 567
 568                 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
 569                     ACPI_DESC_TYPE_OPERAND) {
 570                         goto cleanup;
 571                 }
 572
 573                 /* Valid object, get the pointer to next level, if any */
 574
 575                 switch (obj_type) {
 576                 case ACPI_TYPE_BUFFER:
 577                 case ACPI_TYPE_STRING:
 578                         /*
 579                          * NOTE: takes advantage of common fields between string/buffer
 580                          */
 581                         bytes_to_dump = obj_desc->string.length;
 582                         obj_desc = (void *)obj_desc->string.pointer;
 583
 584                         acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 585                                        obj_desc, bytes_to_dump);
 586                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 587                         goto cleanup;
 588
 589                 case ACPI_TYPE_BUFFER_FIELD:
 590
 591                         obj_desc =
 592                             (union acpi_operand_object *)obj_desc->buffer_field.
 593                             buffer_obj;
 594                         break;
 595
 596                 case ACPI_TYPE_PACKAGE:
 597
 598                         obj_desc = (void *)obj_desc->package.elements;
 599                         break;
 600
 601                 case ACPI_TYPE_METHOD:
 602
 603                         obj_desc = (void *)obj_desc->method.aml_start;
 604                         break;
 605
 606                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 607
 608                         obj_desc = (void *)obj_desc->field.region_obj;
 609                         break;
 610
 611                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 612
 613                         obj_desc = (void *)obj_desc->bank_field.region_obj;
 614                         break;
 615
 616                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 617
 618                         obj_desc = (void *)obj_desc->index_field.index_obj;
 619                         break;
 620
 621                 default:
 622
 623                         goto cleanup;
 624                 }
 625
 626                 obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
 627         }
 628
 629 cleanup:
 630         acpi_os_printf("\n");
 631         return (AE_OK);
 632 }
 633
 634 /*******************************************************************************
 635  *
 636  * FUNCTION:    acpi_ns_dump_objects
 637  *
 638  * PARAMETERS:  type                - Object type to be dumped
 639  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 640  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 641  *                                    for an effectively unlimited depth.
 642  *              owner_id            - Dump only objects owned by this ID. Use
 643  *                                    ACPI_UINT32_MAX to match all owners.
 644  *              start_handle        - Where in namespace to start/end search
 645  *
 646  * RETURN:      None
 647  *
 648  * DESCRIPTION: Dump typed objects within the loaded namespace. Uses
 649  *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 650  *
 651  ******************************************************************************/
 652
 653 void
 654 acpi_ns_dump_objects(acpi_object_type type,
 655                      u8 display_type,
 656                      u32 max_depth,
 657                      acpi_owner_id owner_id, acpi_handle start_handle)
 658 {
 659         struct acpi_walk_info info;
 660         acpi_status status;
 661
 662         ACPI_FUNCTION_ENTRY();
 663
 664         /*
 665          * Just lock the entire namespace for the duration of the dump.
 666          * We don't want any changes to the namespace during this time,
 667          * especially the temporary nodes since we are going to display
 668          * them also.
 669          */
 670         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 671         if (ACPI_FAILURE(status)) {
 672                 acpi_os_printf("Could not acquire namespace mutex\n");
 673                 return;
 674         }
 675
 676         info.debug_level = ACPI_LV_TABLES;
 677         info.owner_id = owner_id;
 678         info.display_type = display_type;
 679
 680         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 681                                      ACPI_NS_WALK_NO_UNLOCK |
 682                                      ACPI_NS_WALK_TEMP_NODES,
 683                                      acpi_ns_dump_one_object, NULL,
 684                                      (void *)&info, NULL);
 685
 686         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 687 }
 688
 689 /*******************************************************************************
 690  *
 691  * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
 692  *
 693  * PARAMETERS:  obj_handle          - Node to be dumped
 694  *              level               - Nesting level of the handle
 695  *              context             - Passed into walk_namespace
 696  *              return_value        - Not used
 697  *
 698  * RETURN:      Status
 699  *
 700  * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
 701  *              computes the maximum nesting depth in the namespace tree, in
 702  *              order to simplify formatting in acpi_ns_dump_one_object_path.
 703  *              These procedures are user_functions called by acpi_ns_walk_namespace.
 704  *
 705  ******************************************************************************/
 706
 707 static acpi_status
 708 acpi_ns_dump_one_object_path(acpi_handle obj_handle,
 709                              u32 level, void *context, void **return_value)
 710 {
 711         u32 max_level = *((u32 *)context);
 712         char *pathname;
 713         struct acpi_namespace_node *node;
 714         int path_indent;
 715
 716         if (!obj_handle) {
 717                 return (AE_OK);
 718         }
 719
 720         node = acpi_ns_validate_handle(obj_handle);
 721         if (!node) {
 722
 723                 /* Ignore bad node during namespace walk */
 724
 725                 return (AE_OK);
 726         }
 727
 728         pathname = acpi_ns_get_normalized_pathname(node, TRUE);
 729
 730         path_indent = 1;
 731         if (level <= max_level) {
 732                 path_indent = max_level - level + 1;
 733         }
 734
 735         acpi_os_printf("%2d%*s%-12s%*s",
 736                        level, level, " ", acpi_ut_get_type_name(node->type),
 737                        path_indent, " ");
 738
 739         acpi_os_printf("%s\n", &pathname[1]);
 740         ACPI_FREE(pathname);
 741         return (AE_OK);
 742 }
 743
 744 static acpi_status
 745 acpi_ns_get_max_depth(acpi_handle obj_handle,
 746                       u32 level, void *context, void **return_value)
 747 {
 748         u32 *max_level = (u32 *)context;
 749
 750         if (level > *max_level) {
 751                 *max_level = level;
 752         }
 753         return (AE_OK);
 754 }
 755
 756 /*******************************************************************************
 757  *
 758  * FUNCTION:    acpi_ns_dump_object_paths
 759  *
 760  * PARAMETERS:  type                - Object type to be dumped
 761  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 762  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 763  *                                    for an effectively unlimited depth.
 764  *              owner_id            - Dump only objects owned by this ID. Use
 765  *                                    ACPI_UINT32_MAX to match all owners.
 766  *              start_handle        - Where in namespace to start/end search
 767  *
 768  * RETURN:      None
 769  *
 770  * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
 771  *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
 772  *
 773  ******************************************************************************/
 774
 775 void
 776 acpi_ns_dump_object_paths(acpi_object_type type,
 777                           u8 display_type,
 778                           u32 max_depth,
 779                           acpi_owner_id owner_id, acpi_handle start_handle)
 780 {
 781         acpi_status status;
 782         u32 max_level = 0;
 783
 784         ACPI_FUNCTION_ENTRY();
 785
 786         /*
 787          * Just lock the entire namespace for the duration of the dump.
 788          * We don't want any changes to the namespace during this time,
 789          * especially the temporary nodes since we are going to display
 790          * them also.
 791          */
 792         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 793         if (ACPI_FAILURE(status)) {
 794                 acpi_os_printf("Could not acquire namespace mutex\n");
 795                 return;
 796         }
 797
 798         /* Get the max depth of the namespace tree, for formatting later */
 799
 800         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 801                                      ACPI_NS_WALK_NO_UNLOCK |
 802                                      ACPI_NS_WALK_TEMP_NODES,
 803                                      acpi_ns_get_max_depth, NULL,
 804                                      (void *)&max_level, NULL);
 805
 806         /* Now dump the entire namespace */
 807
 808         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 809                                      ACPI_NS_WALK_NO_UNLOCK |
 810                                      ACPI_NS_WALK_TEMP_NODES,
 811                                      acpi_ns_dump_one_object_path, NULL,
 812                                      (void *)&max_level, NULL);
 813
 814         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 815 }
 816
 817 /*******************************************************************************
 818  *
 819  * FUNCTION:    acpi_ns_dump_entry
 820  *
 821  * PARAMETERS:  handle              - Node to be dumped
 822  *              debug_level         - Output level
 823  *
 824  * RETURN:      None
 825  *
 826  * DESCRIPTION: Dump a single Node
 827  *
 828  ******************************************************************************/
 829
 830 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
 831 {
 832         struct acpi_walk_info info;
 833
 834         ACPI_FUNCTION_ENTRY();
 835
 836         info.debug_level = debug_level;
 837         info.owner_id = ACPI_OWNER_ID_MAX;
 838         info.display_type = ACPI_DISPLAY_SUMMARY;
 839
 840         (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
 841 }
 842
 843 #ifdef ACPI_ASL_COMPILER
 844 /*******************************************************************************
 845  *
 846  * FUNCTION:    acpi_ns_dump_tables
 847  *
 848  * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 849  *                                    NS_ALL to dump the entire namespace
 850  *              max_depth           - Maximum depth of dump. Use INT_MAX
 851  *                                    for an effectively unlimited depth.
 852  *
 853  * RETURN:      None
 854  *
 855  * DESCRIPTION: Dump the name space, or a portion of it.
 856  *
 857  ******************************************************************************/
 858
 859 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 860 {
 861         acpi_handle search_handle = search_base;
 862
 863         ACPI_FUNCTION_TRACE(ns_dump_tables);
 864
 865         if (!acpi_gbl_root_node) {
 866                 /*
 867                  * If the name space has not been initialized,
 868                  * there is nothing to dump.
 869                  */
 870                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
 871                                   "namespace not initialized!\n"));
 872                 return_VOID;
 873         }
 874
 875         if (ACPI_NS_ALL == search_base) {
 876
 877                 /* Entire namespace */
 878
 879                 search_handle = acpi_gbl_root_node;
 880                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
 881         }
 882
 883         acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
 884                              ACPI_OWNER_ID_MAX, search_handle);
 885         return_VOID;
 886 }
 887 #endif
 888 #endif