linux/drivers/acpi/acpica/nsdump.c
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   1/******************************************************************************
   2 *
   3 * Module Name: nsdump - table dumping routines for debug
   4 *
   5 *****************************************************************************/
   6
   7/*
   8 * Copyright (C) 2000 - 2016, 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
  50ACPI_MODULE_NAME("nsdump")
  51
  52/* Local prototypes */
  53#ifdef ACPI_OBSOLETE_FUNCTIONS
  54void acpi_ns_dump_root_devices(void);
  55
  56static acpi_status
  57acpi_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
  63static acpi_status
  64acpi_ns_dump_one_object_path(acpi_handle obj_handle,
  65                             u32 level, void *context, void **return_value);
  66
  67static acpi_status
  68acpi_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
  84void 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
 136void
 137acpi_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
 173acpi_status
 174acpi_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
 629cleanup:
 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
 653void
 654acpi_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
 707static acpi_status
 708acpi_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
 744static acpi_status
 745acpi_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
 775void
 776acpi_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
 830void 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
 859void 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
 889