nsdump.c 22.8 KB
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886
/******************************************************************************
 *
 * Module Name: nsdump - table dumping routines for debug
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2013, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#include <acpi/acoutput.h>

#define _COMPONENT          ACPI_NAMESPACE
ACPI_MODULE_NAME("nsdump")

/* Local prototypes */
#ifdef ACPI_OBSOLETE_FUNCTIONS
void acpi_ns_dump_root_devices(void);

static acpi_status
acpi_ns_dump_one_device(acpi_handle obj_handle,
			u32 level, void *context, void **return_value);
#endif

#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)

#ifdef	ACPI_FUTURE_USAGE
static acpi_status
acpi_ns_dump_one_object_path(acpi_handle obj_handle,
			     u32 level, void *context, void **return_value);

static acpi_status
acpi_ns_get_max_depth(acpi_handle obj_handle,
		      u32 level, void *context, void **return_value);
#endif				/* ACPI_FUTURE_USAGE */

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_print_pathname
 *
 * PARAMETERS:  num_segments        - Number of ACPI name segments
 *              pathname            - The compressed (internal) path
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print an object's full namespace pathname
 *
 ******************************************************************************/

void acpi_ns_print_pathname(u32 num_segments, char *pathname)
{
	u32 i;

	ACPI_FUNCTION_NAME(ns_print_pathname);

	/* Check if debug output enabled */

	if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_NAMES, ACPI_NAMESPACE)) {
		return;
	}

	/* Print the entire name */

	ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "["));

	while (num_segments) {
		for (i = 0; i < 4; i++) {
			ACPI_IS_PRINT(pathname[i]) ?
			    acpi_os_printf("%c", pathname[i]) :
			    acpi_os_printf("?");
		}

		pathname += ACPI_NAME_SIZE;
		num_segments--;
		if (num_segments) {
			acpi_os_printf(".");
		}
	}

	acpi_os_printf("]\n");
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_pathname
 *
 * PARAMETERS:  handle              - Object
 *              msg                 - Prefix message
 *              level               - Desired debug level
 *              component           - Caller's component ID
 *
 * RETURN:      None
 *
 * DESCRIPTION: Print an object's full namespace pathname
 *              Manages allocation/freeing of a pathname buffer
 *
 ******************************************************************************/

void
acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component)
{

	ACPI_FUNCTION_TRACE(ns_dump_pathname);

	/* Do this only if the requested debug level and component are enabled */

	if (!ACPI_IS_DEBUG_ENABLED(level, component)) {
		return_VOID;
	}

	/* Convert handle to a full pathname and print it (with supplied message) */

	acpi_ns_print_node_pathname(handle, msg);
	acpi_os_printf("\n");
	return_VOID;
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_one_object
 *
 * PARAMETERS:  obj_handle          - Node to be dumped
 *              level               - Nesting level of the handle
 *              context             - Passed into walk_namespace
 *              return_value        - Not used
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Dump a single Node
 *              This procedure is a user_function called by acpi_ns_walk_namespace.
 *
 ******************************************************************************/

acpi_status
acpi_ns_dump_one_object(acpi_handle obj_handle,
			u32 level, void *context, void **return_value)
{
	struct acpi_walk_info *info = (struct acpi_walk_info *)context;
	struct acpi_namespace_node *this_node;
	union acpi_operand_object *obj_desc = NULL;
	acpi_object_type obj_type;
	acpi_object_type type;
	u32 bytes_to_dump;
	u32 dbg_level;
	u32 i;

	ACPI_FUNCTION_NAME(ns_dump_one_object);

	/* Is output enabled? */

	if (!(acpi_dbg_level & info->debug_level)) {
		return (AE_OK);
	}

	if (!obj_handle) {
		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Null object handle\n"));
		return (AE_OK);
	}

	this_node = acpi_ns_validate_handle(obj_handle);
	if (!this_node) {
		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Invalid object handle %p\n",
				  obj_handle));
		return (AE_OK);
	}

	type = this_node->type;

	/* Check if the owner matches */

	if ((info->owner_id != ACPI_OWNER_ID_MAX) &&
	    (info->owner_id != this_node->owner_id)) {
		return (AE_OK);
	}

	if (!(info->display_type & ACPI_DISPLAY_SHORT)) {

		/* Indent the object according to the level */

		acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " ");

		/* Check the node type and name */

		if (type > ACPI_TYPE_LOCAL_MAX) {
			ACPI_WARNING((AE_INFO,
				      "Invalid ACPI Object Type 0x%08X", type));
		}

		acpi_os_printf("%4.4s", acpi_ut_get_node_name(this_node));
	}

	/* Now we can print out the pertinent information */

	acpi_os_printf(" %-12s %p %2.2X ",
		       acpi_ut_get_type_name(type), this_node,
		       this_node->owner_id);

	dbg_level = acpi_dbg_level;
	acpi_dbg_level = 0;
	obj_desc = acpi_ns_get_attached_object(this_node);
	acpi_dbg_level = dbg_level;

	/* Temp nodes are those nodes created by a control method */

	if (this_node->flags & ANOBJ_TEMPORARY) {
		acpi_os_printf("(T) ");
	}

	switch (info->display_type & ACPI_DISPLAY_MASK) {
	case ACPI_DISPLAY_SUMMARY:

		if (!obj_desc) {

			/* No attached object. Some types should always have an object */

			switch (type) {
			case ACPI_TYPE_INTEGER:
			case ACPI_TYPE_PACKAGE:
			case ACPI_TYPE_BUFFER:
			case ACPI_TYPE_STRING:
			case ACPI_TYPE_METHOD:

				acpi_os_printf("<No attached object>");
				break;

			default:

				break;
			}

			acpi_os_printf("\n");
			return (AE_OK);
		}

		switch (type) {
		case ACPI_TYPE_PROCESSOR:

			acpi_os_printf("ID %02X Len %02X Addr %p\n",
				       obj_desc->processor.proc_id,
				       obj_desc->processor.length,
				       ACPI_CAST_PTR(void,
						     obj_desc->processor.
						     address));
			break;

		case ACPI_TYPE_DEVICE:

			acpi_os_printf("Notify Object: %p\n", obj_desc);
			break;

		case ACPI_TYPE_METHOD:

			acpi_os_printf("Args %X Len %.4X Aml %p\n",
				       (u32) obj_desc->method.param_count,
				       obj_desc->method.aml_length,
				       obj_desc->method.aml_start);
			break;

		case ACPI_TYPE_INTEGER:

			acpi_os_printf("= %8.8X%8.8X\n",
				       ACPI_FORMAT_UINT64(obj_desc->integer.
							  value));
			break;

		case ACPI_TYPE_PACKAGE:

			if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
				acpi_os_printf("Elements %.2X\n",
					       obj_desc->package.count);
			} else {
				acpi_os_printf("[Length not yet evaluated]\n");
			}
			break;

		case ACPI_TYPE_BUFFER:

			if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
				acpi_os_printf("Len %.2X",
					       obj_desc->buffer.length);

				/* Dump some of the buffer */

				if (obj_desc->buffer.length > 0) {
					acpi_os_printf(" =");
					for (i = 0;
					     (i < obj_desc->buffer.length
					      && i < 12); i++) {
						acpi_os_printf(" %.2hX",
							       obj_desc->buffer.
							       pointer[i]);
					}
				}
				acpi_os_printf("\n");
			} else {
				acpi_os_printf("[Length not yet evaluated]\n");
			}
			break;

		case ACPI_TYPE_STRING:

			acpi_os_printf("Len %.2X ", obj_desc->string.length);
			acpi_ut_print_string(obj_desc->string.pointer, 32);
			acpi_os_printf("\n");
			break;

		case ACPI_TYPE_REGION:

			acpi_os_printf("[%s]",
				       acpi_ut_get_region_name(obj_desc->region.
							       space_id));
			if (obj_desc->region.flags & AOPOBJ_DATA_VALID) {
				acpi_os_printf(" Addr %8.8X%8.8X Len %.4X\n",
					       ACPI_FORMAT_NATIVE_UINT
					       (obj_desc->region.address),
					       obj_desc->region.length);
			} else {
				acpi_os_printf
				    (" [Address/Length not yet evaluated]\n");
			}
			break;

		case ACPI_TYPE_LOCAL_REFERENCE:

			acpi_os_printf("[%s]\n",
				       acpi_ut_get_reference_name(obj_desc));
			break;

		case ACPI_TYPE_BUFFER_FIELD:

			if (obj_desc->buffer_field.buffer_obj &&
			    obj_desc->buffer_field.buffer_obj->buffer.node) {
				acpi_os_printf("Buf [%4.4s]",
					       acpi_ut_get_node_name(obj_desc->
								     buffer_field.
								     buffer_obj->
								     buffer.
								     node));
			}
			break;

		case ACPI_TYPE_LOCAL_REGION_FIELD:

			acpi_os_printf("Rgn [%4.4s]",
				       acpi_ut_get_node_name(obj_desc->
							     common_field.
							     region_obj->region.
							     node));
			break;

		case ACPI_TYPE_LOCAL_BANK_FIELD:

			acpi_os_printf("Rgn [%4.4s] Bnk [%4.4s]",
				       acpi_ut_get_node_name(obj_desc->
							     common_field.
							     region_obj->region.
							     node),
				       acpi_ut_get_node_name(obj_desc->
							     bank_field.
							     bank_obj->
							     common_field.
							     node));
			break;

		case ACPI_TYPE_LOCAL_INDEX_FIELD:

			acpi_os_printf("Idx [%4.4s] Dat [%4.4s]",
				       acpi_ut_get_node_name(obj_desc->
							     index_field.
							     index_obj->
							     common_field.node),
				       acpi_ut_get_node_name(obj_desc->
							     index_field.
							     data_obj->
							     common_field.
							     node));
			break;

		case ACPI_TYPE_LOCAL_ALIAS:
		case ACPI_TYPE_LOCAL_METHOD_ALIAS:

			acpi_os_printf("Target %4.4s (%p)\n",
				       acpi_ut_get_node_name(obj_desc),
				       obj_desc);
			break;

		default:

			acpi_os_printf("Object %p\n", obj_desc);
			break;
		}

		/* Common field handling */

		switch (type) {
		case ACPI_TYPE_BUFFER_FIELD:
		case ACPI_TYPE_LOCAL_REGION_FIELD:
		case ACPI_TYPE_LOCAL_BANK_FIELD:
		case ACPI_TYPE_LOCAL_INDEX_FIELD:

			acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
				       (obj_desc->common_field.
					base_byte_offset * 8)
				       +
				       obj_desc->common_field.
				       start_field_bit_offset,
				       obj_desc->common_field.bit_length,
				       obj_desc->common_field.
				       access_byte_width);
			break;

		default:

			break;
		}
		break;

	case ACPI_DISPLAY_OBJECTS:

		acpi_os_printf("O:%p", obj_desc);
		if (!obj_desc) {

			/* No attached object, we are done */

			acpi_os_printf("\n");
			return (AE_OK);
		}

		acpi_os_printf("(R%u)", obj_desc->common.reference_count);

		switch (type) {
		case ACPI_TYPE_METHOD:

			/* Name is a Method and its AML offset/length are set */

			acpi_os_printf(" M:%p-%X\n", obj_desc->method.aml_start,
				       obj_desc->method.aml_length);
			break;

		case ACPI_TYPE_INTEGER:

			acpi_os_printf(" I:%8.8X8.8%X\n",
				       ACPI_FORMAT_UINT64(obj_desc->integer.
							  value));
			break;

		case ACPI_TYPE_STRING:

			acpi_os_printf(" S:%p-%X\n", obj_desc->string.pointer,
				       obj_desc->string.length);
			break;

		case ACPI_TYPE_BUFFER:

			acpi_os_printf(" B:%p-%X\n", obj_desc->buffer.pointer,
				       obj_desc->buffer.length);
			break;

		default:

			acpi_os_printf("\n");
			break;
		}
		break;

	default:
		acpi_os_printf("\n");
		break;
	}

	/* If debug turned off, done */

	if (!(acpi_dbg_level & ACPI_LV_VALUES)) {
		return (AE_OK);
	}

	/* If there is an attached object, display it */

	dbg_level = acpi_dbg_level;
	acpi_dbg_level = 0;
	obj_desc = acpi_ns_get_attached_object(this_node);
	acpi_dbg_level = dbg_level;

	/* Dump attached objects */

	while (obj_desc) {
		obj_type = ACPI_TYPE_INVALID;
		acpi_os_printf("Attached Object %p: ", obj_desc);

		/* Decode the type of attached object and dump the contents */

		switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) {
		case ACPI_DESC_TYPE_NAMED:

			acpi_os_printf("(Ptr to Node)\n");
			bytes_to_dump = sizeof(struct acpi_namespace_node);
			ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
			break;

		case ACPI_DESC_TYPE_OPERAND:

			obj_type = obj_desc->common.type;

			if (obj_type > ACPI_TYPE_LOCAL_MAX) {
				acpi_os_printf
				    ("(Pointer to ACPI Object type %.2X [UNKNOWN])\n",
				     obj_type);
				bytes_to_dump = 32;
			} else {
				acpi_os_printf
				    ("(Pointer to ACPI Object type %.2X [%s])\n",
				     obj_type, acpi_ut_get_type_name(obj_type));
				bytes_to_dump =
				    sizeof(union acpi_operand_object);
			}

			ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
			break;

		default:

			break;
		}

		/* If value is NOT an internal object, we are done */

		if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
		    ACPI_DESC_TYPE_OPERAND) {
			goto cleanup;
		}

		/* Valid object, get the pointer to next level, if any */

		switch (obj_type) {
		case ACPI_TYPE_BUFFER:
		case ACPI_TYPE_STRING:
			/*
			 * NOTE: takes advantage of common fields between string/buffer
			 */
			bytes_to_dump = obj_desc->string.length;
			obj_desc = (void *)obj_desc->string.pointer;
			acpi_os_printf("(Buffer/String pointer %p length %X)\n",
				       obj_desc, bytes_to_dump);
			ACPI_DUMP_BUFFER(obj_desc, bytes_to_dump);
			goto cleanup;

		case ACPI_TYPE_BUFFER_FIELD:

			obj_desc =
			    (union acpi_operand_object *)obj_desc->buffer_field.
			    buffer_obj;
			break;

		case ACPI_TYPE_PACKAGE:

			obj_desc = (void *)obj_desc->package.elements;
			break;

		case ACPI_TYPE_METHOD:

			obj_desc = (void *)obj_desc->method.aml_start;
			break;

		case ACPI_TYPE_LOCAL_REGION_FIELD:

			obj_desc = (void *)obj_desc->field.region_obj;
			break;

		case ACPI_TYPE_LOCAL_BANK_FIELD:

			obj_desc = (void *)obj_desc->bank_field.region_obj;
			break;

		case ACPI_TYPE_LOCAL_INDEX_FIELD:

			obj_desc = (void *)obj_desc->index_field.index_obj;
			break;

		default:

			goto cleanup;
		}

		obj_type = ACPI_TYPE_INVALID;	/* Terminate loop after next pass */
	}

cleanup:
	acpi_os_printf("\n");
	return (AE_OK);
}

#ifdef ACPI_FUTURE_USAGE
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_objects
 *
 * PARAMETERS:  type                - Object type to be dumped
 *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 *                                    for an effectively unlimited depth.
 *              owner_id            - Dump only objects owned by this ID. Use
 *                                    ACPI_UINT32_MAX to match all owners.
 *              start_handle        - Where in namespace to start/end search
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump typed objects within the loaded namespace. Uses
 *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object.
 *
 ******************************************************************************/

void
acpi_ns_dump_objects(acpi_object_type type,
		     u8 display_type,
		     u32 max_depth,
		     acpi_owner_id owner_id, acpi_handle start_handle)
{
	struct acpi_walk_info info;
	acpi_status status;

	ACPI_FUNCTION_ENTRY();

	/*
	 * Just lock the entire namespace for the duration of the dump.
	 * We don't want any changes to the namespace during this time,
	 * especially the temporary nodes since we are going to display
	 * them also.
	 */
	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		acpi_os_printf("Could not acquire namespace mutex\n");
		return;
	}

	info.debug_level = ACPI_LV_TABLES;
	info.owner_id = owner_id;
	info.display_type = display_type;

	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
				     ACPI_NS_WALK_NO_UNLOCK |
				     ACPI_NS_WALK_TEMP_NODES,
				     acpi_ns_dump_one_object, NULL,
				     (void *)&info, NULL);

	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
}
#endif				/* ACPI_FUTURE_USAGE */

#ifdef	ACPI_FUTURE_USAGE
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
 *
 * PARAMETERS:  obj_handle          - Node to be dumped
 *              level               - Nesting level of the handle
 *              context             - Passed into walk_namespace
 *              return_value        - Not used
 *
 * RETURN:      Status
 *
 * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
 *              computes the maximum nesting depth in the namespace tree, in
 *              order to simplify formatting in acpi_ns_dump_one_object_path.
 *              These procedures are user_functions called by acpi_ns_walk_namespace.
 *
 ******************************************************************************/

static acpi_status
acpi_ns_dump_one_object_path(acpi_handle obj_handle,
			     u32 level, void *context, void **return_value)
{
	u32 max_level = *((u32 *)context);
	char *pathname;
	struct acpi_namespace_node *node;
	int path_indent;

	if (!obj_handle) {
		return (AE_OK);
	}

	node = acpi_ns_validate_handle(obj_handle);
	if (!node) {

		/* Ignore bad node during namespace walk */

		return (AE_OK);
	}

	pathname = acpi_ns_get_external_pathname(node);

	path_indent = 1;
	if (level <= max_level) {
		path_indent = max_level - level + 1;
	}

	acpi_os_printf("%2d%*s%-12s%*s",
		       level, level, " ", acpi_ut_get_type_name(node->type),
		       path_indent, " ");

	acpi_os_printf("%s\n", &pathname[1]);
	ACPI_FREE(pathname);
	return (AE_OK);
}

static acpi_status
acpi_ns_get_max_depth(acpi_handle obj_handle,
		      u32 level, void *context, void **return_value)
{
	u32 *max_level = (u32 *)context;

	if (level > *max_level) {
		*max_level = level;
	}
	return (AE_OK);
}

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_object_paths
 *
 * PARAMETERS:  type                - Object type to be dumped
 *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
 *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
 *                                    for an effectively unlimited depth.
 *              owner_id            - Dump only objects owned by this ID. Use
 *                                    ACPI_UINT32_MAX to match all owners.
 *              start_handle        - Where in namespace to start/end search
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
 *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
 *
 ******************************************************************************/

void
acpi_ns_dump_object_paths(acpi_object_type type,
			  u8 display_type,
			  u32 max_depth,
			  acpi_owner_id owner_id, acpi_handle start_handle)
{
	acpi_status status;
	u32 max_level = 0;

	ACPI_FUNCTION_ENTRY();

	/*
	 * Just lock the entire namespace for the duration of the dump.
	 * We don't want any changes to the namespace during this time,
	 * especially the temporary nodes since we are going to display
	 * them also.
	 */
	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
	if (ACPI_FAILURE(status)) {
		acpi_os_printf("Could not acquire namespace mutex\n");
		return;
	}

	/* Get the max depth of the namespace tree, for formatting later */

	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
				     ACPI_NS_WALK_NO_UNLOCK |
				     ACPI_NS_WALK_TEMP_NODES,
				     acpi_ns_get_max_depth, NULL,
				     (void *)&max_level, NULL);

	/* Now dump the entire namespace */

	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
				     ACPI_NS_WALK_NO_UNLOCK |
				     ACPI_NS_WALK_TEMP_NODES,
				     acpi_ns_dump_one_object_path, NULL,
				     (void *)&max_level, NULL);

	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
}
#endif				/* ACPI_FUTURE_USAGE */

/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_entry
 *
 * PARAMETERS:  handle              - Node to be dumped
 *              debug_level         - Output level
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump a single Node
 *
 ******************************************************************************/

void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level)
{
	struct acpi_walk_info info;

	ACPI_FUNCTION_ENTRY();

	info.debug_level = debug_level;
	info.owner_id = ACPI_OWNER_ID_MAX;
	info.display_type = ACPI_DISPLAY_SUMMARY;

	(void)acpi_ns_dump_one_object(handle, 1, &info, NULL);
}

#ifdef ACPI_ASL_COMPILER
/*******************************************************************************
 *
 * FUNCTION:    acpi_ns_dump_tables
 *
 * PARAMETERS:  search_base         - Root of subtree to be dumped, or
 *                                    NS_ALL to dump the entire namespace
 *              max_depth           - Maximum depth of dump. Use INT_MAX
 *                                    for an effectively unlimited depth.
 *
 * RETURN:      None
 *
 * DESCRIPTION: Dump the name space, or a portion of it.
 *
 ******************************************************************************/

void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth)
{
	acpi_handle search_handle = search_base;

	ACPI_FUNCTION_TRACE(ns_dump_tables);

	if (!acpi_gbl_root_node) {
		/*
		 * If the name space has not been initialized,
		 * there is nothing to dump.
		 */
		ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
				  "namespace not initialized!\n"));
		return_VOID;
	}

	if (ACPI_NS_ALL == search_base) {

		/* Entire namespace */

		search_handle = acpi_gbl_root_node;
		ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "\\\n"));
	}

	acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_OBJECTS, max_depth,
			     ACPI_OWNER_ID_MAX, search_handle);
	return_VOID;
}
#endif
#endif