kernel/drivers/acpi/acpica/nsdump.c

   1 /******************************************************************************
   2  *
   3  * Module Name: nsdump - table dumping routines for debug
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2015, 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, 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 /*******************************************************************************
 118  *
 119  * FUNCTION:    acpi_ns_dump_pathname
 120  *
 121  * PARAMETERS:  handle              - Object
 122  *              msg                 - Prefix message
 123  *              level               - Desired debug level
 124  *              component           - Caller's component ID
 125  *
 126  * RETURN:      None
 127  *
 128  * DESCRIPTION: Print an object's full namespace pathname
 129  *              Manages allocation/freeing of a pathname buffer
 130  *
 131  ******************************************************************************/
 132
 133 void
 134 acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
 135 {
 136
 137         ACPI_FUNCTION_TRACE(ns_dump_pathname);
 138
 139         /* Do this only if the requested debug level and component are enabled */
 140
 141         if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
 142                 return_VOID;
 143         }
 144
 145         /* Convert handle to a full pathname and print it (with supplied message) */
 146
 147         acpi_ns_print_node_pathname(handle, msg);
 148         acpi_os_printf("\n");
 149         return_VOID;
 150 }
 151
 152 /*******************************************************************************
 153  *
 154  * FUNCTION:    acpi_ns_dump_one_object
 155  *
 156  * PARAMETERS:  obj_handle          - Node to be dumped
 157  *              level               - Nesting level of the handle
 158  *              context             - Passed into walk_namespace
 159  *              return_value        - Not used
 160  *
 161  * RETURN:      Status
 162  *
 163  * DESCRIPTION: Dump a single Node
 164  *              This procedure is a user_function called by acpi_ns_walk_namespace.
 165  *
 166  ******************************************************************************/
 167
 168 acpi_status
 169 acpi_ns_dump_one_object(acpi_handle obj_handle,
 170                         u32 level, void *context, void **return_value)
 171 {
 172         struct acpi_walk_info *info = (struct acpi_walk_info *)context;
 173         struct acpi_namespace_node *this_node;
 174         union acpi_operand_object *obj_desc = NULL;
 175         acpi_object_type obj_type;
 176         acpi_object_type type;
 177         u32 bytes_to_dump;
 178         u32 dbg_level;
 179         u32 i;
 180
 181         ACPI_FUNCTION_NAME(ns_dump_one_object);
 182
 183         /* Is output enabled? */
 184
 185         if (!(acpi_dbg_level & info->debug_level)) {
 186                 return (AE_OK);
 187         }
 188
 189         if (!obj_handle) {
 190                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
 191                 return (AE_OK);
 192         }
 193
 194         this_node = acpi_ns_validate_handle(obj_handle);
 195         if (!this_node) {
 196                 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
 197                                   obj_handle));
 198                 return (AE_OK);
 199         }
 200
 201         type = this_node->type;
 202
 203         /* Check if the owner matches */
 204
 205         if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
 206             (info->owner_id != this_node->owner_id)) {
 207                 return (AE_OK);
 208         }
 209
 210         if (!(info->display_type & ACPI_DISPLAY_SHORT)) {
 211
 212                 /* Indent the object according to the level */
 213
 214                 acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");
 215
 216                 /* Check the node type and name */
 217
 218                 if (type > ACPI_TYPE_LOCAL_MAX) {
 219                         ACPI_WARNING((AE_INFO,
 220                                       "Invalid ACPI Object Type 0x%08X", type));
 221                 }
 222
 223                 acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
 224         }
 225
 226         /* Now we can print out the pertinent information */
 227
 228         acpi_os_printf(" %-12s %p %2.2X ",
 229                        acpi_ut_get_type_name(type), this_node,
 230                        this_node->owner_id);
 231
 232         dbg_level = acpi_dbg_level;
 233         acpi_dbg_level = 0;
 234         obj_desc = acpi_ns_get_attached_object(this_node);
 235         acpi_dbg_level = dbg_level;
 236
 237         /* Temp nodes are those nodes created by a control method */
 238
 239         if (this_node->flags & ANOBJ_TEMPORARY) {
 240                 acpi_os_printf("(T) ");
 241         }
 242
 243         switch (info->display_type & ACPI_DISPLAY_MASK) {
 244         case ACPI_DISPLAY_SUMMARY:
 245
 246                 if (!obj_desc) {
 247
 248                         /* No attached object. Some types should always have an object */
 249
 250                         switch (type) {
 251                         case ACPI_TYPE_INTEGER:
 252                         case ACPI_TYPE_PACKAGE:
 253                         case ACPI_TYPE_BUFFER:
 254                         case ACPI_TYPE_STRING:
 255                         case ACPI_TYPE_METHOD:
 256
 257                                 acpi_os_printf("<No attached object>");
 258                                 break;
 259
 260                         default:
 261
 262                                 break;
 263                         }
 264
 265                         acpi_os_printf("\n");
 266                         return (AE_OK);
 267                 }
 268
 269                 switch (type) {
 270                 case ACPI_TYPE_PROCESSOR:
 271
 272                         acpi_os_printf("ID %02X Len %02X Addr %8.8X%8.8X\n",
 273                                        obj_desc->processor.proc_id,
 274                                        obj_desc->processor.length,
 275                                        ACPI_FORMAT_UINT64(obj_desc->processor.
 276                                                           address));
 277                         break;
 278
 279                 case ACPI_TYPE_DEVICE:
 280
 281                         acpi_os_printf("Notify Object: %p\n", obj_desc);
 282                         break;
 283
 284                 case ACPI_TYPE_METHOD:
 285
 286                         acpi_os_printf("Args %X Len %.4X Aml %p\n",
 287                                        (u32) obj_desc->method.param_count,
 288                                        obj_desc->method.aml_length,
 289                                        obj_desc->method.aml_start);
 290                         break;
 291
 292                 case ACPI_TYPE_INTEGER:
 293
 294                         acpi_os_printf("= %8.8X%8.8X\n",
 295                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 296                                                           value));
 297                         break;
 298
 299                 case ACPI_TYPE_PACKAGE:
 300
 301                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 302                                 acpi_os_printf("Elements %.2X\n",
 303                                                obj_desc->package.count);
 304                         } else {
 305                                 acpi_os_printf("[Length not yet evaluated]\n");
 306                         }
 307                         break;
 308
 309                 case ACPI_TYPE_BUFFER:
 310
 311                         if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
 312                                 acpi_os_printf("Len %.2X",
 313                                                obj_desc->buffer.length);
 314
 315                                 /* Dump some of the buffer */
 316
 317                                 if (obj_desc->buffer.length > 0) {
 318                                         acpi_os_printf(" =");
 319                                         for (i = 0;
 320                                              (i < obj_desc->buffer.length
 321                                               && i < 12); i++) {
 322                                                 acpi_os_printf(" %.2hX",
 323                                                                obj_desc->buffer.
 324                                                                pointer[i]);
 325                                         }
 326                                 }
 327                                 acpi_os_printf("\n");
 328                         } else {
 329                                 acpi_os_printf("[Length not yet evaluated]\n");
 330                         }
 331                         break;
 332
 333                 case ACPI_TYPE_STRING:
 334
 335                         acpi_os_printf("Len %.2X ", obj_desc->string.length);
 336                         acpi_ut_print_string(obj_desc->string.pointer, 32);
 337                         acpi_os_printf("\n");
 338                         break;
 339
 340                 case ACPI_TYPE_REGION:
 341
 342                         acpi_os_printf("[%s]",
 343                                        acpi_ut_get_region_name(obj_desc->region.
 344                                                                space_id));
 345                         if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
 346                                 acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
 347                                                ACPI_FORMAT_UINT64(obj_desc->
 348                                                                   region.
 349                                                                   address),
 350                                                obj_desc->region.length);
 351                         } else {
 352                                 acpi_os_printf
 353                                     (" [Address/Length not yet evaluated]\n");
 354                         }
 355                         break;
 356
 357                 case ACPI_TYPE_LOCAL_REFERENCE:
 358
 359                         acpi_os_printf("[%s]\n",
 360                                        acpi_ut_get_reference_name(obj_desc));
 361                         break;
 362
 363                 case ACPI_TYPE_BUFFER_FIELD:
 364
 365                         if (obj_desc->buffer_field.buffer_obj &&
 366                             obj_desc->buffer_field.buffer_obj->buffer.node) {
 367                                 acpi_os_printf("Buf [%4.4s]",
 368                                                acpi_ut_get_node_name(obj_desc->
 369                                                                      buffer_field.
 370                                                                      buffer_obj->
 371                                                                      buffer.
 372                                                                      node));
 373                         }
 374                         break;
 375
 376                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 377
 378                         acpi_os_printf("Rgn [%4.4s]",
 379                                        acpi_ut_get_node_name(obj_desc->
 380                                                              common_field.
 381                                                              region_obj->region.
 382                                                              node));
 383                         break;
 384
 385                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 386
 387                         acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
 388                                        acpi_ut_get_node_name(obj_desc->
 389                                                              common_field.
 390                                                              region_obj->region.
 391                                                              node),
 392                                        acpi_ut_get_node_name(obj_desc->
 393                                                              bank_field.
 394                                                              bank_obj->
 395                                                              common_field.
 396                                                              node));
 397                         break;
 398
 399                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 400
 401                         acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
 402                                        acpi_ut_get_node_name(obj_desc->
 403                                                              index_field.
 404                                                              index_obj->
 405                                                              common_field.node),
 406                                        acpi_ut_get_node_name(obj_desc->
 407                                                              index_field.
 408                                                              data_obj->
 409                                                              common_field.
 410                                                              node));
 411                         break;
 412
 413                 case ACPI_TYPE_LOCAL_ALIAS:
 414                 case ACPI_TYPE_LOCAL_METHOD_ALIAS:
 415
 416                         acpi_os_printf("Target %4.4s (%p)\n",
 417                                        acpi_ut_get_node_name(obj_desc),
 418                                        obj_desc);
 419                         break;
 420
 421                 default:
 422
 423                         acpi_os_printf("Object %p\n", obj_desc);
 424                         break;
 425                 }
 426
 427                 /* Common field handling */
 428
 429                 switch (type) {
 430                 case ACPI_TYPE_BUFFER_FIELD:
 431                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 432                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 433                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 434
 435                         acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
 436                                        (obj_desc->common_field.
 437                                         base_byte_offset * 8)
 438                                        +
 439                                        obj_desc->common_field.
 440                                        start_field_bit_offset,
 441                                        obj_desc->common_field.bit_length,
 442                                        obj_desc->common_field.
 443                                        access_byte_width);
 444                         break;
 445
 446                 default:
 447
 448                         break;
 449                 }
 450                 break;
 451
 452         case ACPI_DISPLAY_OBJECTS:
 453
 454                 acpi_os_printf("O:%p", obj_desc);
 455                 if (!obj_desc) {
 456
 457                         /* No attached object, we are done */
 458
 459                         acpi_os_printf("\n");
 460                         return (AE_OK);
 461                 }
 462
 463                 acpi_os_printf("(R%u)", obj_desc->common.reference_count);
 464
 465                 switch (type) {
 466                 case ACPI_TYPE_METHOD:
 467
 468                         /* Name is a Method and its AML offset/length are set */
 469
 470                         acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
 471                                        obj_desc->method.aml_length);
 472                         break;
 473
 474                 case ACPI_TYPE_INTEGER:
 475
 476                         acpi_os_printf(" I:%8.8X8.8%X\n",
 477                                        ACPI_FORMAT_UINT64(obj_desc->integer.
 478                                                           value));
 479                         break;
 480
 481                 case ACPI_TYPE_STRING:
 482
 483                         acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
 484                                        obj_desc->string.length);
 485                         break;
 486
 487                 case ACPI_TYPE_BUFFER:
 488
 489                         acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
 490                                        obj_desc->buffer.length);
 491                         break;
 492
 493                 default:
 494
 495                         acpi_os_printf("\n");
 496                         break;
 497                 }
 498                 break;
 499
 500         default:
 501                 acpi_os_printf("\n");
 502                 break;
 503         }
 504
 505         /* If debug turned off, done */
 506
 507         if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
 508                 return (AE_OK);
 509         }
 510
 511         /* If there is an attached object, display it */
 512
 513         dbg_level = acpi_dbg_level;
 514         acpi_dbg_level = 0;
 515         obj_desc = acpi_ns_get_attached_object(this_node);
 516         acpi_dbg_level = dbg_level;
 517
 518         /* Dump attached objects */
 519
 520         while (obj_desc) {
 521                 obj_type = ACPI_TYPE_INVALID;
 522                 acpi_os_printf("Attached Object %p: ", obj_desc);
 523
 524                 /* Decode the type of attached object and dump the contents */
 525
 526                 switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
 527                 case ACPI_DESC_TYPE_NAMED:
 528
 529                         acpi_os_printf("(Ptr to Node)\n");
 530                         bytes_to_dump = sizeof(struct acpi_namespace_node);
 531                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 532                         break;
 533
 534                 case ACPI_DESC_TYPE_OPERAND:
 535
 536                         obj_type = obj_desc->common.type;
 537
 538                         if (obj_type > ACPI_TYPE_LOCAL_MAX) {
 539                                 acpi_os_printf
 540                                     ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
 541                                      obj_type);
 542                                 bytes_to_dump = 32;
 543                         } else {
 544                                 acpi_os_printf
 545                                     ("(Pointer to ACPI Object type %.2X [%s])\n",
 546                                      obj_type, acpi_ut_get_type_name(obj_type));
 547                                 bytes_to_dump =
 548                                     sizeof(union acpi_operand_object);
 549                         }
 550
 551                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 552                         break;
 553
 554                 default:
 555
 556                         break;
 557                 }
 558
 559                 /* If value is NOT an internal object, we are done */
 560
 561                 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
 562                     ACPI_DESC_TYPE_OPERAND) {
 563                         goto cleanup;
 564                 }
 565
 566                 /* Valid object, get the pointer to next level, if any */
 567
 568                 switch (obj_type) {
 569                 case ACPI_TYPE_BUFFER:
 570                 case ACPI_TYPE_STRING:
 571                         /*
 572                          * NOTE: takes advantage of common fields between string/buffer
 573                          */
 574                         bytes_to_dump = obj_desc->string.length;
 575                         obj_desc = (void *)obj_desc->string.pointer;
 576                         acpi_os_printf("(Buffer/String pointer %p length %X)\n",
 577                                        obj_desc, bytes_to_dump);
 578                         ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
 579                         goto cleanup;
 580
 581                 case ACPI_TYPE_BUFFER_FIELD:
 582
 583                         obj_desc =
 584                             (union acpi_operand_object *)obj_desc->buffer_field.
 585                             buffer_obj;
 586                         break;
 587
 588                 case ACPI_TYPE_PACKAGE:
 589
 590                         obj_desc = (void *)obj_desc->package.elements;
 591                         break;
 592
 593                 case ACPI_TYPE_METHOD:
 594
 595                         obj_desc = (void *)obj_desc->method.aml_start;
 596                         break;
 597
 598                 case ACPI_TYPE_LOCAL_REGION_FIELD:
 599
 600                         obj_desc = (void *)obj_desc->field.region_obj;
 601                         break;
 602
 603                 case ACPI_TYPE_LOCAL_BANK_FIELD:
 604
 605                         obj_desc = (void *)obj_desc->bank_field.region_obj;
 606                         break;
 607
 608                 case ACPI_TYPE_LOCAL_INDEX_FIELD:
 609
 610                         obj_desc = (void *)obj_desc->index_field.index_obj;
 611                         break;
 612
 613                 default:
 614
 615                         goto cleanup;
 616                 }
 617
 618                 obj_type = ACPI_TYPE_INVALID;   /* Terminate loop after next pass */
 619         }
 620
 621 cleanup:
 622         acpi_os_printf("\n");
 623         return (AE_OK);
 624 }
 625
 626 /*******************************************************************************
 627  *
 628  * FUNCTION:    acpi_ns_dump_objects
 629  *
 630  * PARAMETERS:  type                - Object type to be dumped
 631  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 632  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 633  *                                    for an effectively unlimited depth.
 634  *              owner_id            - Dump only objects owned by this ID. Use
 635  *                                    ACPI_UINT32_MAX to match all owners.
 636  *              start_handle        - Where in namespace to start/end search
 637  *
 638  * RETURN:      None
 639  *
 640  * DESCRIPTION: Dump typed objects within the loaded namespace. Uses
 641  *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 642  *
 643  ******************************************************************************/
 644
 645 void
 646 acpi_ns_dump_objects(acpi_object_type type,
 647                      u8 display_type,
 648                      u32 max_depth,
 649                      acpi_owner_id owner_id, acpi_handle start_handle)
 650 {
 651         struct acpi_walk_info info;
 652         acpi_status status;
 653
 654         ACPI_FUNCTION_ENTRY();
 655
 656         /*
 657          * Just lock the entire namespace for the duration of the dump.
 658          * We don't want any changes to the namespace during this time,
 659          * especially the temporary nodes since we are going to display
 660          * them also.
 661          */
 662         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 663         if (ACPI_FAILURE(status)) {
 664                 acpi_os_printf("Could not acquire namespace mutex\n");
 665                 return;
 666         }
 667
 668         info.debug_level = ACPI_LV_TABLES;
 669         info.owner_id = owner_id;
 670         info.display_type = display_type;
 671
 672         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 673                                      ACPI_NS_WALK_NO_UNLOCK |
 674                                      ACPI_NS_WALK_TEMP_NODES,
 675                                      acpi_ns_dump_one_object, NULL,
 676                                      (void *)&info, NULL);
 677
 678         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 679 }
 680
 681 /*******************************************************************************
 682  *
 683  * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
 684  *
 685  * PARAMETERS:  obj_handle          - Node to be dumped
 686  *              level               - Nesting level of the handle
 687  *              context             - Passed into walk_namespace
 688  *              return_value        - Not used
 689  *
 690  * RETURN:      Status
 691  *
 692  * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
 693  *              computes the maximum nesting depth in the namespace tree, in
 694  *              order to simplify formatting in acpi_ns_dump_one_object_path.
 695  *              These procedures are user_functions called by acpi_ns_walk_namespace.
 696  *
 697  ******************************************************************************/
 698
 699 static acpi_status
 700 acpi_ns_dump_one_object_path(acpi_handle obj_handle,
 701                              u32 level, void *context, void **return_value)
 702 {
 703         u32 max_level = *((u32 *)context);
 704         char *pathname;
 705         struct acpi_namespace_node *node;
 706         int path_indent;
 707
 708         if (!obj_handle) {
 709                 return (AE_OK);
 710         }
 711
 712         node = acpi_ns_validate_handle(obj_handle);
 713         if (!node) {
 714
 715                 /* Ignore bad node during namespace walk */
 716
 717                 return (AE_OK);
 718         }
 719
 720         pathname = acpi_ns_get_external_pathname(node);
 721
 722         path_indent = 1;
 723         if (level <= max_level) {
 724                 path_indent = max_level - level + 1;
 725         }
 726
 727         acpi_os_printf("%2d%*s%-12s%*s",
 728                        level, level, " ", acpi_ut_get_type_name(node->type),
 729                        path_indent, " ");
 730
 731         acpi_os_printf("%s\n", &pathname[1]);
 732         ACPI_FREE(pathname);
 733         return (AE_OK);
 734 }
 735
 736 static acpi_status
 737 acpi_ns_get_max_depth(acpi_handle obj_handle,
 738                       u32 level, void *context, void **return_value)
 739 {
 740         u32 *max_level = (u32 *)context;
 741
 742         if (level > *max_level) {
 743                 *max_level = level;
 744         }
 745         return (AE_OK);
 746 }
 747
 748 /*******************************************************************************
 749  *
 750  * FUNCTION:    acpi_ns_dump_object_paths
 751  *
 752  * PARAMETERS:  type                - Object type to be dumped
 753  *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 754  *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 755  *                                    for an effectively unlimited depth.
 756  *              owner_id            - Dump only objects owned by this ID. Use
 757  *                                    ACPI_UINT32_MAX to match all owners.
 758  *              start_handle        - Where in namespace to start/end search
 759  *
 760  * RETURN:      None
 761  *
 762  * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
 763  *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
 764  *
 765  ******************************************************************************/
 766
 767 void
 768 acpi_ns_dump_object_paths(acpi_object_type type,
 769                           u8 display_type,
 770                           u32 max_depth,
 771                           acpi_owner_id owner_id, acpi_handle start_handle)
 772 {
 773         acpi_status status;
 774         u32 max_level = 0;
 775
 776         ACPI_FUNCTION_ENTRY();
 777
 778         /*
 779          * Just lock the entire namespace for the duration of the dump.
 780          * We don't want any changes to the namespace during this time,
 781          * especially the temporary nodes since we are going to display
 782          * them also.
 783          */
 784         status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
 785         if (ACPI_FAILURE(status)) {
 786                 acpi_os_printf("Could not acquire namespace mutex\n");
 787                 return;
 788         }
 789
 790         /* Get the max depth of the namespace tree, for formatting later */
 791
 792         (void)acpi_ns_walk_namespace(type, start_handle, max_depth,
 793                                      ACPI_NS_WALK_NO_UNLOCK |
 794                                      ACPI_NS_WALK_TEMP_NODES,
 795                                      acpi_ns_get_max_depth, NULL,
 796                                      (void *)&max_level, NULL);
 797
 798         /* Now dump the entire namespace */
 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_dump_one_object_path, NULL,
 804                                      (void *)&max_level, NULL);
 805
 806         (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 807 }
 808
 809 /*******************************************************************************
 810  *
 811  * FUNCTION:    acpi_ns_dump_entry
 812  *
 813  * PARAMETERS:  handle              - Node to be dumped
 814  *              debug_level         - Output level
 815  *
 816  * RETURN:      None
 817  *
 818  * DESCRIPTION: Dump a single Node
 819  *
 820  ******************************************************************************/
 821
 822 void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
 823 {
 824         struct acpi_walk_info info;
 825
 826         ACPI_FUNCTION_ENTRY();
 827
 828         info.debug_level = debug_level;
 829         info.owner_id = ACPI_OWNER_ID_MAX;
 830         info.display_type = ACPI_DISPLAY_SUMMARY;
 831
 832         (void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
 833 }
 834
 835 #ifdef ACPI_ASL_COMPILER
 836 /*******************************************************************************
 837  *
 838  * FUNCTION:    acpi_ns_dump_tables
 839  *
 840  * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 841  *                                    NS_ALL to dump the entire namespace
 842  *              max_depth           - Maximum depth of dump. Use INT_MAX
 843  *                                    for an effectively unlimited depth.
 844  *
 845  * RETURN:      None
 846  *
 847  * DESCRIPTION: Dump the name space, or a portion of it.
 848  *
 849  ******************************************************************************/
 850
 851 void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
 852 {
 853         acpi_handle search_handle = search_base;
 854
 855         ACPI_FUNCTION_TRACE(ns_dump_tables);
 856
 857         if (!acpi_gbl_root_node) {
 858                 /*
 859                  * If the name space has not been initialized,
 860                  * there is nothing to dump.
 861                  */
 862                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
 863                                   "namespace not initialized!\n"));
 864                 return_VOID;
 865         }
 866
 867         if (ACPI_NS_ALL == search_base) {
 868
 869                 /* Entire namespace */
 870
 871                 search_handle = acpi_gbl_root_node;
 872                 ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
 873         }
 874
 875         acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
 876                              ACPI_OWNER_ID_MAX, search_handle);
 877         return_VOID;
 878 }
 879 #endif
 880 #endif