drivers/acpi/acpica/nsdump.c - kernel/msm-4.9 - Gitiles

 /******************************************************************************
  *
  * Module Name: nsdump - table dumping routines for debug
  *
  *****************************************************************************/

 /*
  * Copyright (C) 2000 - 2015, 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
	/******************************************************************************
	*
	* Module Name: nsdump - table dumping routines for debug
	*
	*****************************************************************************/

	/*
	* Copyright (C) 2000 - 2015, 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