drivers/acpi/acpica/nsdump.c

   1 /******************************************************************************
   2  *
   3  * Module Name: nsdump - table dumping routines for debug
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2014, 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 #ifdef  ACPI_FUTURE_USAGE
  64 static acpi_status
  65 acpi_ns_dump_one_object_path(acpi_handle obj_handle,
  66                              u32 level, void *context, void **return_value);
  67
  68 static acpi_status
  69 acpi_ns_get_max_depth(acpi_handle obj_handle,
  70                       u32 level, void *context, void **return_value);
  71 #endif                          /* ACPI_FUTURE_USAGE */
  72
  73 /*******************************************************************************
  74  *
  75  * FUNCTION:    acpi_ns_print_pathname
  76  *
  77  * PARAMETERS:  num_segments        - Number of ACPI name segments
  78  *              pathname            - The compressed (internal) path
  79  *
  80  * RETURN:      None
  81  *
  82  * DESCRIPTION: Print an object's full namespace pathname
  83  *
  84  ******************************************************************************/
  85
  86 void acpi_ns_print_pathname(u32 num_segments, char *pathname)
  87 {
  88         u32 i;
  89
  90         ACPI_FUNCTION_NAME(ns_print_pathname);
  91
  92         /* Check if debug output enabled */
  93
  94         if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_NAMES, ACPI_NAMESPACE)) {
  95                 return;
  96         }
  97
  98         /* Print the entire name */
  99
 100         ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));
 101
 102         while (num_segments) {
 103                 for (i = 0; i < 4; i++) {
 104                         ACPI_IS_PRINT(pathname[i]) ?
 105                             acpi_os_printf("%c", pathname[i]) :
 106                             acpi_os_printf("?");
 107                 }
 108
 109                 pathname += ACPI_NAME_SIZE;
 110                 num_segments--;
 111                 if (num_segments) {
 112                         acpi_os_printf(".");
 113                 }
 114         }
 115
 116         acpi_os_printf("]\n");
 117 }
 118
 119 /*******************************************************************************
 120  *
 121  * FUNCTION:    acpi_ns_dump_pathname
 122  *
 123  * PARAMETERS:  handle              - Object
 124  *              msg                 - Prefix message
 125  *              level               - Desired debug level
 126  *              component           - Caller's component ID
 127  *
 128  * RETURN:      None
 129  *
 130  * DESCRIPTION: Print an object's full namespace pathname
 131  *              Manages allocation/freeing of a pathname buffer
 132  *
 133  ******************************************************************************/
 134
 135 void
 136 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
 137 {
 138
 139         ACPI_FUNCTION_TRACE(ns_dump_pathname);
 140
 141         /* Do this only if the requested debug level and component are enabled */
 142
 143         if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
 144                 return_VOID;
 145         }
 146
 147         /* Convert handle to a full pathname and print it (with supplied message) */
 148
 149         acpi_ns_print_node_pathname(handle, msg);
 150         acpi_os_printf("\n");
 151         return_VOID;
 152 }
 153
 154 /*******************************************************************************
 155  *
 156  * FUNCTION:    acpi_ns_dump_one_object
 157  *
 158  * PARAMETERS:  obj_handle          - Node to be dumped
 159  *              level               - Nesting level of the handle
 160  *              context             - Passed into walk_namespace
 161  *              return_value        - Not used
 162  *
 163  * RETURN:      Status
 164  *
 165  * DESCRIPTION: Dump a single Node
 166  *              This procedure is a user_function called by acpi_ns_walk_namespace.
 167  *
 168  ******************************************************************************/
 169
 170 acpi_status
 171 acpi_ns_dump_one_object(acpi_handle obj_handle,
 172                         u32 level, void *context, void **return_value)
 173 {
 174         struct acpi_walk_info *info = (struct acpi_walk_info *)context;
 175         struct acpi_namespace_node *this_node;
 176         union acpi_operand_object *obj_desc = NULL;
 177         acpi_object_type obj_type;
 178         acpi_object_type type;
 179         u32 bytes_to_dump;
 180         u32 dbg_level;
 181         u32 i;
 182
 183         ACPI_FUNCTION_NAME(ns_dump_one_object);
 184
 185         /* Is output enabled? */
 186
 187         if (!(acpi_dbg_level & info->debug_level)) {
 188                 return (AE_OK);
 189         }
 190
 191         if (!obj_handle) {
 192                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
 193                 return (AE_OK);
 194         }
 195
 196         this_node = acpi_ns_validate_handle(obj_handle);
 197         if (!this_node) {
 198                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
 199                                   obj_handle));
 200                 return (AE_OK);
 201         }
 202
 203         type = this_node->type;
 204
 205         /* Check if the owner matches */
 206
 207         if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
 208             (info->owner_id != this_node->owner_id)) {
 209                 return (AE_OK);
 210         }
 211
 212         if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
 213
 214                 /* Indent the object according to the level */
 215
 216                 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
 217
 218                 /* Check the node type and name */
 219
 220                 if (type > ACPI_TYPE_LOCAL_MAX) {
 221                         ACPI_WARNING((AE_INFO,
 222                                       "Invalid ACPI Object Type 0x%08X", type));
 223                 }
 224
 225                 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
 226         }
 227
 228         /* Now we can print out the pertinent information */
 229
 230         acpi_os_printf(" %-12s %p %2.2X ",
 231                        acpi_ut_get_type_name(type), this_node,
 232                        this_node->owner_id);
 233
 234         dbg_level = acpi_dbg_level;
 235         acpi_dbg_level = 0;
 236         obj_desc = acpi_ns_get_attached_object(this_node);
 237         acpi_dbg_level = dbg_level;
 238
 239         /* Temp nodes are those nodes created by a control method */
 240
 241         if (this_node->flags & ANOBJ_TEMPORARY) {
 242                 acpi_os_printf("(T) ");
 243         }
 244
 245         switch (info->display_type & ACPI_DISPLAY_MASK) {
 246         case ACPI_DISPLAY_SUMMARY:
 247
 248                 if (!obj_desc) {
 249
 250                         /* No attached object. Some types should always have an object */
 251
 252                         switch (type) {
 253                         case ACPI_TYPE_INTEGER:
 254                         case ACPI_TYPE_PACKAGE:
 255                         case ACPI_TYPE_BUFFER:
 256                         case ACPI_TYPE_STRING:
 257                         case ACPI_TYPE_METHOD:
 258
 259                                 acpi_os_printf("<No attached object>");
 260                                 break;
 261
 262                         default:
 263
 264                                 break;
 265                         }
 266
 267                         acpi_os_printf("\n");
 268                         return (AE_OK);
 269                 }
 270
 271                 switch (type) {
 272                 case ACPI_TYPE_PROCESSOR:
 273
 274                         acpi_os_printf("ID %02X Len %02X Addr %p\n",
 275                                        obj_desc->processor.proc_id,
 276                                        obj_desc->processor.length,
 277                                        ACPI_CAST_PTR(void,
 278                                                      obj_desc->processor.
 279                                                      address));
 280                         break;
 281
 282                 case ACPI_TYPE_DEVICE:
 283
 284                         acpi_os_printf("Notify Object: %p\n", obj_desc);
 285                         break;
 286
 287                 case ACPI_TYPE_METHOD:
 288
 289                         acpi_os_printf("Args %X Len %.4X Aml %p\n",
 290                                        (u32) obj_desc->method.param_count,
 291                                        obj_desc->method.aml_length,
 292                                        obj_desc->method.aml_start);
 293                         break;
 294
 295                 case ACPI_TYPE_INTEGER:
 296
 297                         acpi_os_printf("= %8.8X%8.8X\n",
 298                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 299                                                           value));
 300                         break;
 301
 302                 case ACPI_TYPE_PACKAGE:
 303
 304                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 305                                 acpi_os_printf("Elements %.2X\n",
 306                                                obj_desc->package.count);
 307                         } else {
 308                                 acpi_os_printf("[Length not yet evaluated]\n");
 309                         }
 310                         break;
 311
 312                 case ACPI_TYPE_BUFFER:
 313
 314                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 315                                 acpi_os_printf("Len %.2X",
 316                                                obj_desc->buffer.length);
 317
 318                                 /* Dump some of the buffer */
 319
 320                                 if (obj_desc->buffer.length > 0) {
 321                                         acpi_os_printf(" =");
 322                                         for (i = 0;
 323                                              (i < obj_desc->buffer.length
 324                                               && i < 12); i++) {
 325                                                 acpi_os_printf(" %.2hX",
 326                                                                obj_desc->buffer.
 327                                                                pointer[i]);
 328                                         }
 329                                 }
 330                                 acpi_os_printf("\n");
 331                         } else {
 332                                 acpi_os_printf("[Length not yet evaluated]\n");
 333                         }
 334                         break;
 335
 336                 case ACPI_TYPE_STRING:
 337
 338                         acpi_os_printf("Len %.2X ", obj_desc->string.length);
 339                         acpi_ut_print_string(obj_desc->string.pointer, 32);
 340                         acpi_os_printf("\n");
 341                         break;
 342
 343                 case ACPI_TYPE_REGION:
 344
 345                         acpi_os_printf("[%s]",
 346                                        acpi_ut_get_region_name(obj_desc->region.
 347                                                                space_id));
 348                         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
 349                                 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
 350                                                ACPI_FORMAT_NATIVE_UINT
 351                                                (obj_desc->region.address),
 352                                                obj_desc->region.length);
 353                         } else {
 354                                 acpi_os_printf
 355                                     (" [Address/Length not yet evaluated]\n");
 356                         }
 357                         break;
 358
 359                 case ACPI_TYPE_LOCAL_REFERENCE:
 360
 361                         acpi_os_printf("[%s]\n",
 362                                        acpi_ut_get_reference_name(obj_desc));
 363                         break;
 364
 365                 case ACPI_TYPE_BUFFER_FIELD:
 366
 367                         if (obj_desc->buffer_field.buffer_obj &&
 368                             obj_desc->buffer_field.buffer_obj->buffer.node) {
 369                                 acpi_os_printf("Buf [%4.4s]",
 370                                                acpi_ut_get_node_name(obj_desc->
 371                                                                      buffer_field.
 372                                                                      buffer_obj->
 373                                                                      buffer.
 374                                                                      node));
 375                         }
 376                         break;
 377
 378                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 379
 380                         acpi_os_printf("Rgn [%4.4s]",
 381                                        acpi_ut_get_node_name(obj_desc->
 382                                                              common_field.
 383                                                              region_obj->region.
 384                                                              node));
 385                         break;
 386
 387                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 388
 389                         acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
 390                                        acpi_ut_get_node_name(obj_desc->
 391                                                              common_field.
 392                                                              region_obj->region.
 393                                                              node),
 394                                        acpi_ut_get_node_name(obj_desc->
 395                                                              bank_field.
 396                                                              bank_obj->
 397                                                              common_field.
 398                                                              node));
 399                         break;
 400
 401                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 402
 403                         acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
 404                                        acpi_ut_get_node_name(obj_desc->
 405                                                              index_field.
 406                                                              index_obj->
 407                                                              common_field.node),
 408                                        acpi_ut_get_node_name(obj_desc->
 409                                                              index_field.
 410                                                              data_obj->
 411                                                              common_field.
 412                                                              node));
 413                         break;
 414
 415                 case ACPI_TYPE_LOCAL_ALIAS:
 416                 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
 417
 418                         acpi_os_printf("Target %4.4s (%p)\n",
 419                                        acpi_ut_get_node_name(obj_desc),
 420                                        obj_desc);
 421                         break;
 422
 423                 default:
 424
 425                         acpi_os_printf("Object %p\n", obj_desc);
 426                         break;
 427                 }
 428
 429                 /* Common field handling */
 430
 431                 switch (type) {
 432                 case ACPI_TYPE_BUFFER_FIELD:
 433                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 434                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 435                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 436
 437                         acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
 438                                        (obj_desc->common_field.
 439                                         base_byte_offset * 8)
 440                                        +
 441                                        obj_desc->common_field.
 442                                        start_field_bit_offset,
 443                                        obj_desc->common_field.bit_length,
 444                                        obj_desc->common_field.
 445                                        access_byte_width);
 446                         break;
 447
 448                 default:
 449
 450                         break;
 451                 }
 452                 break;
 453
 454         case ACPI_DISPLAY_OBJECTS:
 455
 456                 acpi_os_printf("O:%p", obj_desc);
 457                 if (!obj_desc) {
 458
 459                         /* No attached object, we are done */
 460
 461                         acpi_os_printf("\n");
 462                         return (AE_OK);
 463                 }
 464
 465                 acpi_os_printf("(R%u)", obj_desc->common.reference_count);
 466
 467                 switch (type) {
 468                 case ACPI_TYPE_METHOD:
 469
 470                         /* Name is a Method and its AML offset/length are set */
 471
 472                         acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
 473                                        obj_desc->method.aml_length);
 474                         break;
 475
 476                 case ACPI_TYPE_INTEGER:
 477
 478                         acpi_os_printf(" I:%8.8X8.8%X\n",
 479                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 480                                                           value));
 481                         break;
 482
 483                 case ACPI_TYPE_STRING:
 484
 485                         acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
 486                                        obj_desc->string.length);
 487                         break;
 488
 489                 case ACPI_TYPE_BUFFER:
 490
 491                         acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
 492                                        obj_desc->buffer.length);
 493                         break;
 494
 495                 default:
 496
 497                         acpi_os_printf("\n");
 498                         break;
 499                 }
 500                 break;
 501
 502         default:
 503                 acpi_os_printf("\n");
 504                 break;
 505         }
 506
 507         /* If debug turned off, done */
 508
 509         if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
 510                 return (AE_OK);
 511         }
 512
 513         /* If there is an attached object, display it */
 514
 515         dbg_level = acpi_dbg_level;
 516         acpi_dbg_level = 0;
 517         obj_desc = acpi_ns_get_attached_object(this_node);
 518         acpi_dbg_level = dbg_level;
 519
 520         /* Dump attached objects */
 521
 522         while (obj_desc) {
 523                 obj_type = ACPI_TYPE_INVALID;
 524                 acpi_os_printf("Attached Object %p: ", obj_desc);
 525
 526                 /* Decode the type of attached object and dump the contents */
 527
 528                 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
 529                 case ACPI_DESC_TYPE_NAMED:
 530
 531                         acpi_os_printf("(Ptr to Node)\n");
 532                         bytes_to_dump = sizeof(struct acpi_namespace_node);
 533                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 534                         break;
 535
 536                 case ACPI_DESC_TYPE_OPERAND:
 537
 538                         obj_type = obj_desc->common.type;
 539
 540                         if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 541                                 acpi_os_printf
 542                                     ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
 543                                      obj_type);
 544                                 bytes_to_dump = 32;
 545                         } else {
 546                                 acpi_os_printf
 547                                     ("(Pointer to ACPI Object type %.2X [%s])\n",
 548                                      obj_type, acpi_ut_get_type_name(obj_type));
 549                                 bytes_to_dump =
 550                                     sizeof(union acpi_operand_object);
 551                         }
 552
 553                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 554                         break;
 555
 556                 default:
 557
 558                         break;
 559                 }
 560
 561                 /* If value is NOT an internal object, we are done */
 562
 563                 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
 564                     ACPI_DESC_TYPE_OPERAND) {
 565                         goto cleanup;
 566                 }
 567
 568                 /* Valid object, get the pointer to next level, if any */
 569
 570                 switch (obj_type) {
 571                 case ACPI_TYPE_BUFFER:
 572                 case ACPI_TYPE_STRING:
 573                         /*
 574                          * NOTE: takes advantage of common fields between string/buffer
 575                          */
 576                         bytes_to_dump = obj_desc->string.length;
 577                         obj_desc = (void *)obj_desc->string.pointer;
 578                         acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 579                                        obj_desc, bytes_to_dump);
 580                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 581                         goto cleanup;
 582
 583                 case ACPI_TYPE_BUFFER_FIELD:
 584
 585                         obj_desc =
 586                             (union acpi_operand_object *)obj_desc->buffer_field.
 587                             buffer_obj;
 588                         break;
 589
 590                 case ACPI_TYPE_PACKAGE:
 591
 592                         obj_desc = (void *)obj_desc->package.elements;
 593                         break;
 594
 595                 case ACPI_TYPE_METHOD:
 596
 597                         obj_desc = (void *)obj_desc->method.aml_start;
 598                         break;
 599
 600                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 601
 602                         obj_desc = (void *)obj_desc->field.region_obj;
 603                         break;
 604
 605                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 606
 607                         obj_desc = (void *)obj_desc->bank_field.region_obj;
 608                         break;
 609
 610                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 611
 612                         obj_desc = (void *)obj_desc->index_field.index_obj;
 613                         break;
 614
 615                 default:
 616
 617                         goto cleanup;
 618                 }
 619
 620                 obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
 621         }
 622
 623 cleanup:
 624         acpi_os_printf("\n");
 625         return (AE_OK);
 626 }
 627
 628 #ifdef ACPI_FUTURE_USAGE
 629 /*******************************************************************************
 630  *
 631  * FUNCTION:    acpi_ns_dump_objects
 632  *
 633  * PARAMETERS:  type                - Object type to be dumped
 634  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 635  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 636  *                                    for an effectively unlimited depth.
 637  *              owner_id            - Dump only objects owned by this ID. Use
 638  *                                    ACPI_UINT32_MAX to match all owners.
 639  *              start_handle        - Where in namespace to start/end search
 640  *
 641  * RETURN:      None
 642  *
 643  * DESCRIPTION: Dump typed objects within the loaded namespace. Uses
 644  *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 645  *
 646  ******************************************************************************/
 647
 648 void
 649 acpi_ns_dump_objects(acpi_object_type type,
 650                      u8 display_type,
 651                      u32 max_depth,
 652                      acpi_owner_id owner_id, acpi_handle start_handle)
 653 {
 654         struct acpi_walk_info info;
 655         acpi_status status;
 656
 657         ACPI_FUNCTION_ENTRY();
 658
 659         /*
 660          * Just lock the entire namespace for the duration of the dump.
 661          * We don't want any changes to the namespace during this time,
 662          * especially the temporary nodes since we are going to display
 663          * them also.
 664          */
 665         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 666         if (ACPI_FAILURE(status)) {
 667                 acpi_os_printf("Could not acquire namespace mutex\n");
 668                 return;
 669         }
 670
 671         info.debug_level = ACPI_LV_TABLES;
 672         info.owner_id = owner_id;
 673         info.display_type = display_type;
 674
 675         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 676                                      ACPI_NS_WALK_NO_UNLOCK |
 677                                      ACPI_NS_WALK_TEMP_NODES,
 678                                      acpi_ns_dump_one_object, NULL,
 679                                      (void *)&info, NULL);
 680
 681         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 682 }
 683 #endif                          /* ACPI_FUTURE_USAGE */
 684
 685 #ifdef  ACPI_FUTURE_USAGE
 686 /*******************************************************************************
 687  *
 688  * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
 689  *
 690  * PARAMETERS:  obj_handle          - Node to be dumped
 691  *              level               - Nesting level of the handle
 692  *              context             - Passed into walk_namespace
 693  *              return_value        - Not used
 694  *
 695  * RETURN:      Status
 696  *
 697  * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
 698  *              computes the maximum nesting depth in the namespace tree, in
 699  *              order to simplify formatting in acpi_ns_dump_one_object_path.
 700  *              These procedures are user_functions called by acpi_ns_walk_namespace.
 701  *
 702  ******************************************************************************/
 703
 704 static acpi_status
 705 acpi_ns_dump_one_object_path(acpi_handle obj_handle,
 706                              u32 level, void *context, void **return_value)
 707 {
 708         u32 max_level = *((u32 *)context);
 709         char *pathname;
 710         struct acpi_namespace_node *node;
 711         int path_indent;
 712
 713         if (!obj_handle) {
 714                 return (AE_OK);
 715         }
 716
 717         node = acpi_ns_validate_handle(obj_handle);
 718         if (!node) {
 719
 720                 /* Ignore bad node during namespace walk */
 721
 722                 return (AE_OK);
 723         }
 724
 725         pathname = acpi_ns_get_external_pathname(node);
 726
 727         path_indent = 1;
 728         if (level <= max_level) {
 729                 path_indent = max_level - level + 1;
 730         }
 731
 732         acpi_os_printf("%2d%*s%-12s%*s",
 733                        level, level, " ", acpi_ut_get_type_name(node->type),
 734                        path_indent, " ");
 735
 736         acpi_os_printf("%s\n", &pathname[1]);
 737         ACPI_FREE(pathname);
 738         return (AE_OK);
 739 }
 740
 741 static acpi_status
 742 acpi_ns_get_max_depth(acpi_handle obj_handle,
 743                       u32 level, void *context, void **return_value)
 744 {
 745         u32 *max_level = (u32 *)context;
 746
 747         if (level > *max_level) {
 748                 *max_level = level;
 749         }
 750         return (AE_OK);
 751 }
 752
 753 /*******************************************************************************
 754  *
 755  * FUNCTION:    acpi_ns_dump_object_paths
 756  *
 757  * PARAMETERS:  type                - Object type to be dumped
 758  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 759  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 760  *                                    for an effectively unlimited depth.
 761  *              owner_id            - Dump only objects owned by this ID. Use
 762  *                                    ACPI_UINT32_MAX to match all owners.
 763  *              start_handle        - Where in namespace to start/end search
 764  *
 765  * RETURN:      None
 766  *
 767  * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
 768  *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
 769  *
 770  ******************************************************************************/
 771
 772 void
 773 acpi_ns_dump_object_paths(acpi_object_type type,
 774                           u8 display_type,
 775                           u32 max_depth,
 776                           acpi_owner_id owner_id, acpi_handle start_handle)
 777 {
 778         acpi_status status;
 779         u32 max_level = 0;
 780
 781         ACPI_FUNCTION_ENTRY();
 782
 783         /*
 784          * Just lock the entire namespace for the duration of the dump.
 785          * We don't want any changes to the namespace during this time,
 786          * especially the temporary nodes since we are going to display
 787          * them also.
 788          */
 789         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 790         if (ACPI_FAILURE(status)) {
 791                 acpi_os_printf("Could not acquire namespace mutex\n");
 792                 return;
 793         }
 794
 795         /* Get the max depth of the namespace tree, for formatting later */
 796
 797         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 798                                      ACPI_NS_WALK_NO_UNLOCK |
 799                                      ACPI_NS_WALK_TEMP_NODES,
 800                                      acpi_ns_get_max_depth, NULL,
 801                                      (void *)&max_level, NULL);
 802
 803         /* Now dump the entire namespace */
 804
 805         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 806                                      ACPI_NS_WALK_NO_UNLOCK |
 807                                      ACPI_NS_WALK_TEMP_NODES,
 808                                      acpi_ns_dump_one_object_path, NULL,
 809                                      (void *)&max_level, NULL);
 810
 811         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 812 }
 813 #endif                          /* ACPI_FUTURE_USAGE */
 814
 815 /*******************************************************************************
 816  *
 817  * FUNCTION:    acpi_ns_dump_entry
 818  *
 819  * PARAMETERS:  handle              - Node to be dumped
 820  *              debug_level         - Output level
 821  *
 822  * RETURN:      None
 823  *
 824  * DESCRIPTION: Dump a single Node
 825  *
 826  ******************************************************************************/
 827
 828 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
 829 {
 830         struct acpi_walk_info info;
 831
 832         ACPI_FUNCTION_ENTRY();
 833
 834         info.debug_level = debug_level;
 835         info.owner_id = ACPI_OWNER_ID_MAX;
 836         info.display_type = ACPI_DISPLAY_SUMMARY;
 837
 838         (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
 839 }
 840
 841 #ifdef ACPI_ASL_COMPILER
 842 /*******************************************************************************
 843  *
 844  * FUNCTION:    acpi_ns_dump_tables
 845  *
 846  * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 847  *                                    NS_ALL to dump the entire namespace
 848  *              max_depth           - Maximum depth of dump. Use INT_MAX
 849  *                                    for an effectively unlimited depth.
 850  *
 851  * RETURN:      None
 852  *
 853  * DESCRIPTION: Dump the name space, or a portion of it.
 854  *
 855  ******************************************************************************/
 856
 857 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 858 {
 859         acpi_handle search_handle = search_base;
 860
 861         ACPI_FUNCTION_TRACE(ns_dump_tables);
 862
 863         if (!acpi_gbl_root_node) {
 864                 /*
 865                  * If the name space has not been initialized,
 866                  * there is nothing to dump.
 867                  */
 868                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
 869                                   "namespace not initialized!\n"));
 870                 return_VOID;
 871         }
 872
 873         if (ACPI_NS_ALL == search_base) {
 874
 875                 /* Entire namespace */
 876
 877                 search_handle = acpi_gbl_root_node;
 878                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
 879         }
 880
 881         acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
 882                              ACPI_OWNER_ID_MAX, search_handle);
 883         return_VOID;
 884 }
 885 #endif
 886 #endif