Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

17 files changed, 7572 insertions, 0 deletions

diff --git a/drivers/acpi/namespace/Makefile b/drivers/acpi/namespace/Makefile
new file mode 100644
index 00000000000..3f63d364069
--- /dev/null
+++ b/drivers/acpi/namespace/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for all Linux ACPI interpreter subdirectories
+#
+
+obj-y := nsaccess.o  nsload.o    nssearch.o  nsxfeval.o \
+	 nsalloc.o   nseval.o    nsnames.o   nsutils.o   nsxfname.o \
+	 nsdump.o    nsinit.o    nsobject.o  nswalk.o    nsxfobj.o  \
+	 nsparse.o
+
+obj-$(ACPI_FUTURE_USAGE) += nsdumpdv.o
+
+EXTRA_CFLAGS += $(ACPI_CFLAGS)
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
new file mode 100644
index 00000000000..1c0c12336c5
--- /dev/null
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -0,0 +1,637 @@
+/*******************************************************************************
+ *
+ * Module Name: nsaccess - Top-level functions for accessing ACPI namespace
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsaccess")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_root_initialize
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Allocate and initialize the default root named objects
+ *
+ * MUTEX:       Locks namespace for entire execution
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_root_initialize (void)
+{
+	acpi_status                         status;
+	const struct acpi_predefined_names *init_val = NULL;
+	struct acpi_namespace_node          *new_node;
+	union acpi_operand_object           *obj_desc;
+	acpi_string                         val = NULL;
+
+
+	ACPI_FUNCTION_TRACE ("ns_root_initialize");
+
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/*
+	 * The global root ptr is initially NULL, so a non-NULL value indicates
+	 * that acpi_ns_root_initialize() has already been called; just return.
+	 */
+	if (acpi_gbl_root_node) {
+		status = AE_OK;
+		goto unlock_and_exit;
+	}
+
+	/*
+	 * Tell the rest of the subsystem that the root is initialized
+	 * (This is OK because the namespace is locked)
+	 */
+	acpi_gbl_root_node = &acpi_gbl_root_node_struct;
+
+	/* Enter the pre-defined names in the name table */
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+		"Entering predefined entries into namespace\n"));
+
+	for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) {
+		/* _OSI is optional for now, will be permanent later */
+
+		if (!ACPI_STRCMP (init_val->name, "_OSI") && !acpi_gbl_create_osi_method) {
+			continue;
+		}
+
+		status = acpi_ns_lookup (NULL, init_val->name, init_val->type,
+				  ACPI_IMODE_LOAD_PASS2, ACPI_NS_NO_UPSEARCH,
+				  NULL, &new_node);
+
+		if (ACPI_FAILURE (status) || (!new_node)) /* Must be on same line for code converter */ {
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+				"Could not create predefined name %s, %s\n",
+				init_val->name, acpi_format_exception (status)));
+		}
+
+		/*
+		 * Name entered successfully.
+		 * If entry in pre_defined_names[] specifies an
+		 * initial value, create the initial value.
+		 */
+		if (init_val->val) {
+			status = acpi_os_predefined_override (init_val, &val);
+			if (ACPI_FAILURE (status)) {
+				ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+					"Could not override predefined %s\n",
+					init_val->name));
+			}
+
+			if (!val) {
+				val = init_val->val;
+			}
+
+			/*
+			 * Entry requests an initial value, allocate a
+			 * descriptor for it.
+			 */
+			obj_desc = acpi_ut_create_internal_object (init_val->type);
+			if (!obj_desc) {
+				status = AE_NO_MEMORY;
+				goto unlock_and_exit;
+			}
+
+			/*
+			 * Convert value string from table entry to
+			 * internal representation. Only types actually
+			 * used for initial values are implemented here.
+			 */
+			switch (init_val->type) {
+			case ACPI_TYPE_METHOD:
+				obj_desc->method.param_count = (u8) ACPI_TO_INTEGER (val);
+				obj_desc->common.flags |= AOPOBJ_DATA_VALID;
+
+#if defined (_ACPI_ASL_COMPILER) || defined (_ACPI_DUMP_App)
+
+				/*
+				 * i_aSL Compiler cheats by putting parameter count
+				 * in the owner_iD
+				 */
+				new_node->owner_id = obj_desc->method.param_count;
+#else
+				/* Mark this as a very SPECIAL method */
+
+				obj_desc->method.method_flags = AML_METHOD_INTERNAL_ONLY;
+				obj_desc->method.implementation = acpi_ut_osi_implementation;
+#endif
+				break;
+
+			case ACPI_TYPE_INTEGER:
+
+				obj_desc->integer.value = ACPI_TO_INTEGER (val);
+				break;
+
+
+			case ACPI_TYPE_STRING:
+
+				/*
+				 * Build an object around the static string
+				 */
+				obj_desc->string.length = (u32) ACPI_STRLEN (val);
+				obj_desc->string.pointer = val;
+				obj_desc->common.flags |= AOPOBJ_STATIC_POINTER;
+				break;
+
+
+			case ACPI_TYPE_MUTEX:
+
+				obj_desc->mutex.node = new_node;
+				obj_desc->mutex.sync_level = (u8) (ACPI_TO_INTEGER (val) - 1);
+
+				if (ACPI_STRCMP (init_val->name, "_GL_") == 0) {
+					/*
+					 * Create a counting semaphore for the
+					 * global lock
+					 */
+					status = acpi_os_create_semaphore (ACPI_NO_UNIT_LIMIT,
+							 1, &obj_desc->mutex.semaphore);
+					if (ACPI_FAILURE (status)) {
+						acpi_ut_remove_reference (obj_desc);
+						goto unlock_and_exit;
+					}
+
+					/*
+					 * We just created the mutex for the
+					 * global lock, save it
+					 */
+					acpi_gbl_global_lock_semaphore = obj_desc->mutex.semaphore;
+				}
+				else {
+					/* Create a mutex */
+
+					status = acpi_os_create_semaphore (1, 1,
+							   &obj_desc->mutex.semaphore);
+					if (ACPI_FAILURE (status)) {
+						acpi_ut_remove_reference (obj_desc);
+						goto unlock_and_exit;
+					}
+				}
+				break;
+
+
+			default:
+
+				ACPI_REPORT_ERROR (("Unsupported initial type value %X\n",
+					init_val->type));
+				acpi_ut_remove_reference (obj_desc);
+				obj_desc = NULL;
+				continue;
+			}
+
+			/* Store pointer to value descriptor in the Node */
+
+			status = acpi_ns_attach_object (new_node, obj_desc,
+					 ACPI_GET_OBJECT_TYPE (obj_desc));
+
+			/* Remove local reference to the object */
+
+			acpi_ut_remove_reference (obj_desc);
+		}
+	}
+
+
+unlock_and_exit:
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+
+	/* Save a handle to "_GPE", it is always present */
+
+	if (ACPI_SUCCESS (status)) {
+		status = acpi_ns_get_node_by_path ("\\_GPE", NULL, ACPI_NS_NO_UPSEARCH,
+				  &acpi_gbl_fadt_gpe_device);
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_lookup
+ *
+ * PARAMETERS:  prefix_node     - Search scope if name is not fully qualified
+ *              Pathname        - Search pathname, in internal format
+ *                                (as represented in the AML stream)
+ *              Type            - Type associated with name
+ *              interpreter_mode - IMODE_LOAD_PASS2 => add name if not found
+ *              Flags           - Flags describing the search restrictions
+ *              walk_state      - Current state of the walk
+ *              return_node     - Where the Node is placed (if found
+ *                                or created successfully)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find or enter the passed name in the name space.
+ *              Log an error if name not found in Exec mode.
+ *
+ * MUTEX:       Assumes namespace is locked.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_lookup (
+	union acpi_generic_state        *scope_info,
+	char                            *pathname,
+	acpi_object_type                type,
+	acpi_interpreter_mode           interpreter_mode,
+	u32                             flags,
+	struct acpi_walk_state          *walk_state,
+	struct acpi_namespace_node      **return_node)
+{
+	acpi_status                     status;
+	char                            *path = pathname;
+	struct acpi_namespace_node      *prefix_node;
+	struct acpi_namespace_node      *current_node = NULL;
+	struct acpi_namespace_node      *this_node = NULL;
+	u32                             num_segments;
+	u32                             num_carats;
+	acpi_name                       simple_name;
+	acpi_object_type                type_to_check_for;
+	acpi_object_type                this_search_type;
+	u32                             search_parent_flag = ACPI_NS_SEARCH_PARENT;
+	u32                             local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND |
+			   ACPI_NS_SEARCH_PARENT);
+
+
+	ACPI_FUNCTION_TRACE ("ns_lookup");
+
+
+	if (!return_node) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	acpi_gbl_ns_lookup_count++;
+	*return_node = ACPI_ENTRY_NOT_FOUND;
+
+	if (!acpi_gbl_root_node) {
+		return_ACPI_STATUS (AE_NO_NAMESPACE);
+	}
+
+	/*
+	 * Get the prefix scope.
+	 * A null scope means use the root scope
+	 */
+	if ((!scope_info) ||
+		(!scope_info->scope.node)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+			"Null scope prefix, using root node (%p)\n",
+			acpi_gbl_root_node));
+
+		prefix_node = acpi_gbl_root_node;
+	}
+	else {
+		prefix_node = scope_info->scope.node;
+		if (ACPI_GET_DESCRIPTOR_TYPE (prefix_node) != ACPI_DESC_TYPE_NAMED) {
+			ACPI_REPORT_ERROR (("ns_lookup: %p is not a namespace node [%s]\n",
+					prefix_node, acpi_ut_get_descriptor_name (prefix_node)));
+			return_ACPI_STATUS (AE_AML_INTERNAL);
+		}
+
+		/*
+		 * This node might not be a actual "scope" node (such as a
+		 * Device/Method, etc.)  It could be a Package or other object node.
+		 * Backup up the tree to find the containing scope node.
+		 */
+		while (!acpi_ns_opens_scope (prefix_node->type) &&
+				prefix_node->type != ACPI_TYPE_ANY) {
+			prefix_node = acpi_ns_get_parent_node (prefix_node);
+		}
+	}
+
+	/* Save type   TBD: may be no longer necessary */
+
+	type_to_check_for = type;
+
+	/*
+	 * Begin examination of the actual pathname
+	 */
+	if (!pathname) {
+		/* A Null name_path is allowed and refers to the root */
+
+		num_segments = 0;
+		this_node    = acpi_gbl_root_node;
+		path     = "";
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+			"Null Pathname (Zero segments), Flags=%X\n", flags));
+	}
+	else {
+		/*
+		 * Name pointer is valid (and must be in internal name format)
+		 *
+		 * Check for scope prefixes:
+		 *
+		 * As represented in the AML stream, a namepath consists of an
+		 * optional scope prefix followed by a name segment part.
+		 *
+		 * If present, the scope prefix is either a Root Prefix (in
+		 * which case the name is fully qualified), or one or more
+		 * Parent Prefixes (in which case the name's scope is relative
+		 * to the current scope).
+		 */
+		if (*path == (u8) AML_ROOT_PREFIX) {
+			/* Pathname is fully qualified, start from the root */
+
+			this_node = acpi_gbl_root_node;
+			search_parent_flag = ACPI_NS_NO_UPSEARCH;
+
+			/* Point to name segment part */
+
+			path++;
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Path is absolute from root [%p]\n", this_node));
+		}
+		else {
+			/* Pathname is relative to current scope, start there */
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Searching relative to prefix scope [%4.4s] (%p)\n",
+				acpi_ut_get_node_name (prefix_node), prefix_node));
+
+			/*
+			 * Handle multiple Parent Prefixes (carat) by just getting
+			 * the parent node for each prefix instance.
+			 */
+			this_node = prefix_node;
+			num_carats = 0;
+			while (*path == (u8) AML_PARENT_PREFIX) {
+				/* Name is fully qualified, no search rules apply */
+
+				search_parent_flag = ACPI_NS_NO_UPSEARCH;
+				/*
+				 * Point past this prefix to the name segment
+				 * part or the next Parent Prefix
+				 */
+				path++;
+
+				/* Backup to the parent node */
+
+				num_carats++;
+				this_node = acpi_ns_get_parent_node (this_node);
+				if (!this_node) {
+					/* Current scope has no parent scope */
+
+					ACPI_REPORT_ERROR (
+						("ACPI path has too many parent prefixes (^) - reached beyond root node\n"));
+					return_ACPI_STATUS (AE_NOT_FOUND);
+				}
+			}
+
+			if (search_parent_flag == ACPI_NS_NO_UPSEARCH) {
+				ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+					"Search scope is [%4.4s], path has %d carat(s)\n",
+					acpi_ut_get_node_name (this_node), num_carats));
+			}
+		}
+
+		/*
+		 * Determine the number of ACPI name segments in this pathname.
+		 *
+		 * The segment part consists of either:
+		 *  - A Null name segment (0)
+		 *  - A dual_name_prefix followed by two 4-byte name segments
+		 *  - A multi_name_prefix followed by a byte indicating the
+		 *      number of segments and the segments themselves.
+		 *  - A single 4-byte name segment
+		 *
+		 * Examine the name prefix opcode, if any, to determine the number of
+		 * segments.
+		 */
+		switch (*path) {
+		case 0:
+			/*
+			 * Null name after a root or parent prefixes. We already
+			 * have the correct target node and there are no name segments.
+			 */
+			num_segments = 0;
+			type = this_node->type;
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Prefix-only Pathname (Zero name segments), Flags=%X\n",
+				flags));
+			break;
+
+		case AML_DUAL_NAME_PREFIX:
+
+			/* More than one name_seg, search rules do not apply */
+
+			search_parent_flag = ACPI_NS_NO_UPSEARCH;
+
+			/* Two segments, point to first name segment */
+
+			num_segments = 2;
+			path++;
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Dual Pathname (2 segments, Flags=%X)\n", flags));
+			break;
+
+		case AML_MULTI_NAME_PREFIX_OP:
+
+			/* More than one name_seg, search rules do not apply */
+
+			search_parent_flag = ACPI_NS_NO_UPSEARCH;
+
+			/* Extract segment count, point to first name segment */
+
+			path++;
+			num_segments = (u32) (u8) *path;
+			path++;
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Multi Pathname (%d Segments, Flags=%X) \n",
+				num_segments, flags));
+			break;
+
+		default:
+			/*
+			 * Not a Null name, no Dual or Multi prefix, hence there is
+			 * only one name segment and Pathname is already pointing to it.
+			 */
+			num_segments = 1;
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Simple Pathname (1 segment, Flags=%X)\n", flags));
+			break;
+		}
+
+		ACPI_DEBUG_EXEC (acpi_ns_print_pathname (num_segments, path));
+	}
+
+
+	/*
+	 * Search namespace for each segment of the name.  Loop through and
+	 * verify (or add to the namespace) each name segment.
+	 *
+	 * The object type is significant only at the last name
+	 * segment.  (We don't care about the types along the path, only
+	 * the type of the final target object.)
+	 */
+	this_search_type = ACPI_TYPE_ANY;
+	current_node = this_node;
+	while (num_segments && current_node) {
+		num_segments--;
+		if (!num_segments) {
+			/*
+			 * This is the last segment, enable typechecking
+			 */
+			this_search_type = type;
+
+			/*
+			 * Only allow automatic parent search (search rules) if the caller
+			 * requested it AND we have a single, non-fully-qualified name_seg
+			 */
+			if ((search_parent_flag != ACPI_NS_NO_UPSEARCH) &&
+				(flags & ACPI_NS_SEARCH_PARENT)) {
+				local_flags |= ACPI_NS_SEARCH_PARENT;
+			}
+
+			/* Set error flag according to caller */
+
+			if (flags & ACPI_NS_ERROR_IF_FOUND) {
+				local_flags |= ACPI_NS_ERROR_IF_FOUND;
+			}
+		}
+
+		/* Extract one ACPI name from the front of the pathname */
+
+		ACPI_MOVE_32_TO_32 (&simple_name, path);
+
+		/* Try to find the single (4 character) ACPI name */
+
+		status = acpi_ns_search_and_enter (simple_name, walk_state, current_node,
+				 interpreter_mode, this_search_type, local_flags, &this_node);
+		if (ACPI_FAILURE (status)) {
+			if (status == AE_NOT_FOUND) {
+				/* Name not found in ACPI namespace */
+
+				ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+					"Name [%4.4s] not found in scope [%4.4s] %p\n",
+					(char *) &simple_name, (char *) &current_node->name,
+					current_node));
+			}
+
+			*return_node = this_node;
+			return_ACPI_STATUS (status);
+		}
+
+		/*
+		 * Sanity typecheck of the target object:
+		 *
+		 * If 1) This is the last segment (num_segments == 0)
+		 *    2) And we are looking for a specific type
+		 *       (Not checking for TYPE_ANY)
+		 *    3) Which is not an alias
+		 *    4) Which is not a local type (TYPE_SCOPE)
+		 *    5) And the type of target object is known (not TYPE_ANY)
+		 *    6) And target object does not match what we are looking for
+		 *
+		 * Then we have a type mismatch.  Just warn and ignore it.
+		 */
+		if ((num_segments       == 0)                               &&
+			(type_to_check_for  != ACPI_TYPE_ANY)                   &&
+			(type_to_check_for  != ACPI_TYPE_LOCAL_ALIAS)           &&
+			(type_to_check_for  != ACPI_TYPE_LOCAL_METHOD_ALIAS)    &&
+			(type_to_check_for  != ACPI_TYPE_LOCAL_SCOPE)           &&
+			(this_node->type    != ACPI_TYPE_ANY)                   &&
+			(this_node->type    != type_to_check_for)) {
+			/* Complain about a type mismatch */
+
+			ACPI_REPORT_WARNING (
+				("ns_lookup: Type mismatch on %4.4s (%s), searching for (%s)\n",
+				(char *) &simple_name, acpi_ut_get_type_name (this_node->type),
+				acpi_ut_get_type_name (type_to_check_for)));
+		}
+
+		/*
+		 * If this is the last name segment and we are not looking for a
+		 * specific type, but the type of found object is known, use that type
+		 * to see if it opens a scope.
+		 */
+		if ((num_segments == 0) && (type == ACPI_TYPE_ANY)) {
+			type = this_node->type;
+		}
+
+		/* Point to next name segment and make this node current */
+
+		path += ACPI_NAME_SIZE;
+		current_node = this_node;
+	}
+
+	/*
+	 * Always check if we need to open a new scope
+	 */
+	if (!(flags & ACPI_NS_DONT_OPEN_SCOPE) && (walk_state)) {
+		/*
+		 * If entry is a type which opens a scope, push the new scope on the
+		 * scope stack.
+		 */
+		if (acpi_ns_opens_scope (type)) {
+			status = acpi_ds_scope_stack_push (this_node, type, walk_state);
+			if (ACPI_FAILURE (status)) {
+				return_ACPI_STATUS (status);
+			}
+		}
+	}
+
+	*return_node = this_node;
+	return_ACPI_STATUS (AE_OK);
+}
+
diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c
new file mode 100644
index 00000000000..bfd922c5c7d
--- /dev/null
+++ b/drivers/acpi/namespace/nsalloc.c
@@ -0,0 +1,685 @@
+/*******************************************************************************
+ *
+ * Module Name: nsalloc - Namespace allocation and deletion utilities
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsalloc")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_create_node
+ *
+ * PARAMETERS:  acpi_name       - Name of the new node
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Create a namespace node
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *
+acpi_ns_create_node (
+	u32                             name)
+{
+	struct acpi_namespace_node      *node;
+
+
+	ACPI_FUNCTION_TRACE ("ns_create_node");
+
+
+	node = ACPI_MEM_CALLOCATE (sizeof (struct acpi_namespace_node));
+	if (!node) {
+		return_PTR (NULL);
+	}
+
+	ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].total_allocated++);
+
+	node->name.integer   = name;
+	node->reference_count = 1;
+	ACPI_SET_DESCRIPTOR_TYPE (node, ACPI_DESC_TYPE_NAMED);
+
+	return_PTR (node);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_delete_node
+ *
+ * PARAMETERS:  Node            - Node to be deleted
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete a namespace node
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_delete_node (
+	struct acpi_namespace_node      *node)
+{
+	struct acpi_namespace_node      *parent_node;
+	struct acpi_namespace_node      *prev_node;
+	struct acpi_namespace_node      *next_node;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ns_delete_node", node);
+
+
+	parent_node = acpi_ns_get_parent_node (node);
+
+	prev_node = NULL;
+	next_node = parent_node->child;
+
+	/* Find the node that is the previous peer in the parent's child list */
+
+	while (next_node != node) {
+		prev_node = next_node;
+		next_node = prev_node->peer;
+	}
+
+	if (prev_node) {
+		/* Node is not first child, unlink it */
+
+		prev_node->peer = next_node->peer;
+		if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+			prev_node->flags |= ANOBJ_END_OF_PEER_LIST;
+		}
+	}
+	else {
+		/* Node is first child (has no previous peer) */
+
+		if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+			/* No peers at all */
+
+			parent_node->child = NULL;
+		}
+		else {   /* Link peer list to parent */
+
+			parent_node->child = next_node->peer;
+		}
+	}
+
+
+	ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].total_freed++);
+
+	/*
+	 * Detach an object if there is one then delete the node
+	 */
+	acpi_ns_detach_object (node);
+	ACPI_MEM_FREE (node);
+	return_VOID;
+}
+
+
+#ifdef ACPI_ALPHABETIC_NAMESPACE
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_compare_names
+ *
+ * PARAMETERS:  Name1           - First name to compare
+ *              Name2           - Second name to compare
+ *
+ * RETURN:      value from strncmp
+ *
+ * DESCRIPTION: Compare two ACPI names.  Names that are prefixed with an
+ *              underscore are forced to be alphabetically first.
+ *
+ ******************************************************************************/
+
+int
+acpi_ns_compare_names (
+	char                            *name1,
+	char                            *name2)
+{
+	char                            reversed_name1[ACPI_NAME_SIZE];
+	char                            reversed_name2[ACPI_NAME_SIZE];
+	u32                             i;
+	u32                             j;
+
+
+	/*
+	 * Replace all instances of "underscore" with a value that is smaller so
+	 * that all names that are prefixed with underscore(s) are alphabetically
+	 * first.
+	 *
+	 * Reverse the name bytewise so we can just do a 32-bit compare instead
+	 * of a strncmp.
+	 */
+	for (i = 0, j= (ACPI_NAME_SIZE - 1); i < ACPI_NAME_SIZE; i++, j--) {
+		reversed_name1[j] = name1[i];
+		if (name1[i] == '_') {
+			reversed_name1[j] = '*';
+		}
+
+		reversed_name2[j] = name2[i];
+		if (name2[i] == '_') {
+			reversed_name2[j] = '*';
+		}
+	}
+
+	return (*(int *) reversed_name1 - *(int *) reversed_name2);
+}
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_install_node
+ *
+ * PARAMETERS:  walk_state      - Current state of the walk
+ *              parent_node     - The parent of the new Node
+ *              Node            - The new Node to install
+ *              Type            - ACPI object type of the new Node
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Initialize a new namespace node and install it amongst
+ *              its peers.
+ *
+ *              Note: Current namespace lookup is linear search.  However, the
+ *              nodes are linked in alphabetical order to 1) put all reserved
+ *              names (start with underscore) first, and to 2) make a readable
+ *              namespace dump.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_install_node (
+	struct acpi_walk_state          *walk_state,
+	struct acpi_namespace_node      *parent_node,   /* Parent */
+	struct acpi_namespace_node      *node,          /* New Child*/
+	acpi_object_type                type)
+{
+	u16                             owner_id = 0;
+	struct acpi_namespace_node      *child_node;
+#ifdef ACPI_ALPHABETIC_NAMESPACE
+
+	struct acpi_namespace_node      *previous_child_node;
+#endif
+
+
+	ACPI_FUNCTION_TRACE ("ns_install_node");
+
+
+	/*
+	 * Get the owner ID from the Walk state
+	 * The owner ID is used to track table deletion and
+	 * deletion of objects created by methods
+	 */
+	if (walk_state) {
+		owner_id = walk_state->owner_id;
+	}
+
+	/* Link the new entry into the parent and existing children */
+
+	child_node = parent_node->child;
+	if (!child_node) {
+		parent_node->child = node;
+		node->flags |= ANOBJ_END_OF_PEER_LIST;
+		node->peer = parent_node;
+	}
+	else {
+#ifdef ACPI_ALPHABETIC_NAMESPACE
+		/*
+		 * Walk the list whilst searching for the correct
+		 * alphabetic placement.
+		 */
+		previous_child_node = NULL;
+		while (acpi_ns_compare_names (acpi_ut_get_node_name (child_node), acpi_ut_get_node_name (node)) < 0) {
+			if (child_node->flags & ANOBJ_END_OF_PEER_LIST) {
+				/* Last peer;  Clear end-of-list flag */
+
+				child_node->flags &= ~ANOBJ_END_OF_PEER_LIST;
+
+				/* This node is the new peer to the child node */
+
+				child_node->peer = node;
+
+				/* This node is the new end-of-list */
+
+				node->flags |= ANOBJ_END_OF_PEER_LIST;
+				node->peer = parent_node;
+				break;
+			}
+
+			/* Get next peer */
+
+			previous_child_node = child_node;
+			child_node = child_node->peer;
+		}
+
+		/* Did the node get inserted at the end-of-list? */
+
+		if (!(node->flags & ANOBJ_END_OF_PEER_LIST)) {
+			/*
+			 * Loop above terminated without reaching the end-of-list.
+			 * Insert the new node at the current location
+			 */
+			if (previous_child_node) {
+				/* Insert node alphabetically */
+
+				node->peer = child_node;
+				previous_child_node->peer = node;
+			}
+			else {
+				/* Insert node alphabetically at start of list */
+
+				node->peer = child_node;
+				parent_node->child = node;
+			}
+		}
+#else
+		while (!(child_node->flags & ANOBJ_END_OF_PEER_LIST)) {
+			child_node = child_node->peer;
+		}
+
+		child_node->peer = node;
+
+		/* Clear end-of-list flag */
+
+		child_node->flags &= ~ANOBJ_END_OF_PEER_LIST;
+		node->flags     |= ANOBJ_END_OF_PEER_LIST;
+		node->peer = parent_node;
+#endif
+	}
+
+	/* Init the new entry */
+
+	node->owner_id = owner_id;
+	node->type = (u8) type;
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+		"%4.4s (%s) [Node %p Owner %X] added to %4.4s (%s) [Node %p]\n",
+		acpi_ut_get_node_name (node), acpi_ut_get_type_name (node->type), node, owner_id,
+		acpi_ut_get_node_name (parent_node), acpi_ut_get_type_name (parent_node->type),
+		parent_node));
+
+	/*
+	 * Increment the reference count(s) of all parents up to
+	 * the root!
+	 */
+	while ((node = acpi_ns_get_parent_node (node)) != NULL) {
+		node->reference_count++;
+	}
+
+	return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_delete_children
+ *
+ * PARAMETERS:  parent_node     - Delete this objects children
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Delete all children of the parent object. In other words,
+ *              deletes a "scope".
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_delete_children (
+	struct acpi_namespace_node      *parent_node)
+{
+	struct acpi_namespace_node      *child_node;
+	struct acpi_namespace_node      *next_node;
+	struct acpi_namespace_node      *node;
+	u8                              flags;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ns_delete_children", parent_node);
+
+
+	if (!parent_node) {
+		return_VOID;
+	}
+
+	/* If no children, all done! */
+
+	child_node = parent_node->child;
+	if (!child_node) {
+		return_VOID;
+	}
+
+	/*
+	 * Deallocate all children at this level
+	 */
+	do {
+		/* Get the things we need */
+
+		next_node   = child_node->peer;
+		flags       = child_node->flags;
+
+		/* Grandchildren should have all been deleted already */
+
+		if (child_node->child) {
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Found a grandchild! P=%p C=%p\n",
+				parent_node, child_node));
+		}
+
+		/* Now we can free this child object */
+
+		ACPI_MEM_TRACKING (acpi_gbl_memory_lists[ACPI_MEM_LIST_NSNODE].total_freed++);
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_ALLOCATIONS, "Object %p, Remaining %X\n",
+			child_node, acpi_gbl_current_node_count));
+
+		/*
+		 * Detach an object if there is one, then free the child node
+		 */
+		acpi_ns_detach_object (child_node);
+
+		/*
+		 * Decrement the reference count(s) of all parents up to
+		 * the root! (counts were incremented when the node was created)
+		 */
+		node = child_node;
+		while ((node = acpi_ns_get_parent_node (node)) != NULL) {
+			node->reference_count--;
+		}
+
+		/* There should be only one reference remaining on this node */
+
+		if (child_node->reference_count != 1) {
+			ACPI_REPORT_WARNING (("Existing references (%d) on node being deleted (%p)\n",
+				child_node->reference_count, child_node));
+		}
+
+		/* Now we can delete the node */
+
+		ACPI_MEM_FREE (child_node);
+
+		/* And move on to the next child in the list */
+
+		child_node = next_node;
+
+	} while (!(flags & ANOBJ_END_OF_PEER_LIST));
+
+
+	/* Clear the parent's child pointer */
+
+	parent_node->child = NULL;
+
+	return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_delete_namespace_subtree
+ *
+ * PARAMETERS:  parent_node     - Root of the subtree to be deleted
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Delete a subtree of the namespace.  This includes all objects
+ *              stored within the subtree.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_delete_namespace_subtree (
+	struct acpi_namespace_node      *parent_node)
+{
+	struct acpi_namespace_node      *child_node = NULL;
+	u32                             level = 1;
+
+
+	ACPI_FUNCTION_TRACE ("ns_delete_namespace_subtree");
+
+
+	if (!parent_node) {
+		return_VOID;
+	}
+
+	/*
+	 * Traverse the tree of objects until we bubble back up
+	 * to where we started.
+	 */
+	while (level > 0) {
+		/* Get the next node in this scope (NULL if none) */
+
+		child_node = acpi_ns_get_next_node (ACPI_TYPE_ANY, parent_node,
+				 child_node);
+		if (child_node) {
+			/* Found a child node - detach any attached object */
+
+			acpi_ns_detach_object (child_node);
+
+			/* Check if this node has any children */
+
+			if (acpi_ns_get_next_node (ACPI_TYPE_ANY, child_node, NULL)) {
+				/*
+				 * There is at least one child of this node,
+				 * visit the node
+				 */
+				level++;
+				parent_node = child_node;
+				child_node = NULL;
+			}
+		}
+		else {
+			/*
+			 * No more children of this parent node.
+			 * Move up to the grandparent.
+			 */
+			level--;
+
+			/*
+			 * Now delete all of the children of this parent
+			 * all at the same time.
+			 */
+			acpi_ns_delete_children (parent_node);
+
+			/* New "last child" is this parent node */
+
+			child_node = parent_node;
+
+			/* Move up the tree to the grandparent */
+
+			parent_node = acpi_ns_get_parent_node (parent_node);
+		}
+	}
+
+	return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_remove_reference
+ *
+ * PARAMETERS:  Node           - Named node whose reference count is to be
+ *                               decremented
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Remove a Node reference.  Decrements the reference count
+ *              of all parent Nodes up to the root.  Any node along
+ *              the way that reaches zero references is freed.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_remove_reference (
+	struct acpi_namespace_node      *node)
+{
+	struct acpi_namespace_node      *parent_node;
+	struct acpi_namespace_node      *this_node;
+
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	/*
+	 * Decrement the reference count(s) of this node and all
+	 * nodes up to the root,  Delete anything with zero remaining references.
+	 */
+	this_node = node;
+	while (this_node) {
+		/* Prepare to move up to parent */
+
+		parent_node = acpi_ns_get_parent_node (this_node);
+
+		/* Decrement the reference count on this node */
+
+		this_node->reference_count--;
+
+		/* Delete the node if no more references */
+
+		if (!this_node->reference_count) {
+			/* Delete all children and delete the node */
+
+			acpi_ns_delete_children (this_node);
+			acpi_ns_delete_node (this_node);
+		}
+
+		this_node = parent_node;
+	}
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_delete_namespace_by_owner
+ *
+ * PARAMETERS:  owner_id    - All nodes with this owner will be deleted
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Delete entries within the namespace that are owned by a
+ *              specific ID.  Used to delete entire ACPI tables.  All
+ *              reference counts are updated.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_delete_namespace_by_owner (
+	u16                             owner_id)
+{
+	struct acpi_namespace_node      *child_node;
+	struct acpi_namespace_node      *deletion_node;
+	u32                             level;
+	struct acpi_namespace_node      *parent_node;
+
+
+	ACPI_FUNCTION_TRACE_U32 ("ns_delete_namespace_by_owner", owner_id);
+
+
+	parent_node   = acpi_gbl_root_node;
+	child_node    = NULL;
+	deletion_node = NULL;
+	level         = 1;
+
+	/*
+	 * Traverse the tree of nodes until we bubble back up
+	 * to where we started.
+	 */
+	while (level > 0) {
+		/*
+		 * Get the next child of this parent node. When child_node is NULL,
+		 * the first child of the parent is returned
+		 */
+		child_node = acpi_ns_get_next_node (ACPI_TYPE_ANY, parent_node, child_node);
+
+		if (deletion_node) {
+			acpi_ns_remove_reference (deletion_node);
+			deletion_node = NULL;
+		}
+
+		if (child_node) {
+			if (child_node->owner_id == owner_id) {
+				/* Found a matching child node - detach any attached object */
+
+				acpi_ns_detach_object (child_node);
+			}
+
+			/* Check if this node has any children */
+
+			if (acpi_ns_get_next_node (ACPI_TYPE_ANY, child_node, NULL)) {
+				/*
+				 * There is at least one child of this node,
+				 * visit the node
+				 */
+				level++;
+				parent_node = child_node;
+				child_node = NULL;
+			}
+			else if (child_node->owner_id == owner_id) {
+				deletion_node = child_node;
+			}
+		}
+		else {
+			/*
+			 * No more children of this parent node.
+			 * Move up to the grandparent.
+			 */
+			level--;
+			if (level != 0) {
+				if (parent_node->owner_id == owner_id) {
+					deletion_node = parent_node;
+				}
+			}
+
+			/* New "last child" is this parent node */
+
+			child_node = parent_node;
+
+			/* Move up the tree to the grandparent */
+
+			parent_node = acpi_ns_get_parent_node (parent_node);
+		}
+	}
+
+	return_VOID;
+}
+
+
diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c
new file mode 100644
index 00000000000..1f6af3eb6c9
--- /dev/null
+++ b/drivers/acpi/namespace/nsdump.c
@@ -0,0 +1,673 @@
+/******************************************************************************
+ *
+ * Module Name: nsdump - table dumping routines for debug
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+#include <acpi/acparser.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsdump")
+
+
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_print_pathname
+ *
+ * PARAMETERS:  num_segment         - Number of ACPI name segments
+ *              Pathname            - The compressed (internal) path
+ *
+ * DESCRIPTION: Print an object's full namespace pathname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_print_pathname (
+	u32                             num_segments,
+	char                            *pathname)
+{
+	ACPI_FUNCTION_NAME ("ns_print_pathname");
+
+
+	if (!(acpi_dbg_level & ACPI_LV_NAMES) || !(acpi_dbg_layer & ACPI_NAMESPACE)) {
+		return;
+	}
+
+	/* Print the entire name */
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "["));
+
+	while (num_segments) {
+		acpi_os_printf ("%4.4s", pathname);
+		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
+ *
+ * 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_dbg_level & level) || !(acpi_dbg_layer & 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:  Handle              - Node to be dumped
+ *              Level               - Nesting level of the handle
+ *              Context             - Passed into walk_namespace
+ *
+ * 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_map_handle_to_node (obj_handle);
+	type = this_node->type;
+
+	/* Check if the owner matches */
+
+	if ((info->owner_id != ACPI_UINT32_MAX) &&
+		(info->owner_id != this_node->owner_id)) {
+		return (AE_OK);
+	}
+
+	/* 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_REPORT_WARNING (("Invalid ACPI Type %08X\n", type));
+	}
+
+	if (!acpi_ut_valid_acpi_name (this_node->name.integer)) {
+		ACPI_REPORT_WARNING (("Invalid ACPI Name %08X\n",
+			this_node->name.integer));
+	}
+
+	/*
+	 * Now we can print out the pertinent information
+	 */
+	acpi_os_printf ("%4.4s %-12s %p ",
+			acpi_ut_get_node_name (this_node), acpi_ut_get_type_name (type), this_node);
+
+	dbg_level = acpi_dbg_level;
+	acpi_dbg_level = 0;
+	obj_desc = acpi_ns_get_attached_object (this_node);
+	acpi_dbg_level = dbg_level;
+
+	switch (info->display_type) {
+	case ACPI_DISPLAY_SUMMARY:
+
+		if (!obj_desc) {
+			/* No attached object, we are done */
+
+			acpi_os_printf ("\n");
+			return (AE_OK);
+		}
+
+		switch (type) {
+		case ACPI_TYPE_PROCESSOR:
+
+			acpi_os_printf ("ID %X Len %.4X Addr %p\n",
+				obj_desc->processor.proc_id, obj_desc->processor.length,
+				(char *) 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_UINT64 (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_ps_get_opcode_name (obj_desc->reference.opcode));
+			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%d)",
+				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);
+			break;
+
+
+		case ACPI_DESC_TYPE_OPERAND:
+
+			obj_type = ACPI_GET_OBJECT_TYPE (obj_desc);
+
+			if (obj_type > ACPI_TYPE_LOCAL_MAX) {
+				acpi_os_printf ("(Ptr to ACPI Object type %X [UNKNOWN])\n",
+					obj_type);
+				bytes_to_dump = 32;
+			}
+			else {
+				acpi_os_printf ("(Ptr to ACPI Object type %s, %X)\n",
+					acpi_ut_get_type_name (obj_type), obj_type);
+				bytes_to_dump = sizeof (union acpi_operand_object);
+			}
+			break;
+
+
+		default:
+
+			acpi_os_printf (
+				"(String or Buffer ptr - not an object descriptor) [%s]\n",
+				acpi_ut_get_descriptor_name (obj_desc));
+			bytes_to_dump = 16;
+			break;
+		}
+
+		ACPI_DUMP_BUFFER (obj_desc, bytes_to_dump);
+
+		/* 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_STRING:
+			obj_desc = (void *) obj_desc->string.pointer;
+			break;
+
+		case ACPI_TYPE_BUFFER:
+			obj_desc = (void *) obj_desc->buffer.pointer;
+			break;
+
+		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
+ *              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
+ *
+ * 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,
+	u32                             owner_id,
+	acpi_handle                     start_handle)
+{
+	struct acpi_walk_info           info;
+
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	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_dump_one_object,
+			 (void *) &info, NULL);
+}
+
+
+/*******************************************************************************
+ *
+ * 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.
+ *
+ * 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_UINT32_MAX, search_handle);
+	return_VOID;
+}
+
+#endif  /*  ACPI_FUTURE_USAGE  */
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_dump_entry
+ *
+ * PARAMETERS:  Handle              - Node to be dumped
+ *              debug_level         - Output level
+ *
+ * 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_UINT32_MAX;
+	info.display_type = ACPI_DISPLAY_SUMMARY;
+
+	(void) acpi_ns_dump_one_object (handle, 1, &info, NULL);
+}
+
+#endif
+
diff --git a/drivers/acpi/namespace/nsdumpdv.c b/drivers/acpi/namespace/nsdumpdv.c
new file mode 100644
index 00000000000..d30a59e6b07
--- /dev/null
+++ b/drivers/acpi/namespace/nsdumpdv.c
@@ -0,0 +1,146 @@
+/******************************************************************************
+ *
+ * Module Name: nsdump - table dumping routines for debug
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsdumpdv")
+
+
+#if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_dump_one_device
+ *
+ * PARAMETERS:  Handle              - Node to be dumped
+ *              Level               - Nesting level of the handle
+ *              Context             - Passed into walk_namespace
+ *
+ * DESCRIPTION: Dump a single Node that represents a device
+ *              This procedure is a user_function called by acpi_ns_walk_namespace.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_dump_one_device (
+	acpi_handle                     obj_handle,
+	u32                             level,
+	void                            *context,
+	void                            **return_value)
+{
+	struct acpi_buffer              buffer;
+	struct acpi_device_info         *info;
+	acpi_status                     status;
+	u32                             i;
+
+
+	ACPI_FUNCTION_NAME ("ns_dump_one_device");
+
+
+	status = acpi_ns_dump_one_object (obj_handle, level, context, return_value);
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_get_object_info (obj_handle, &buffer);
+	if (ACPI_SUCCESS (status)) {
+		info = buffer.pointer;
+		for (i = 0; i < level; i++) {
+			ACPI_DEBUG_PRINT_RAW ((ACPI_DB_TABLES, " "));
+		}
+
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_TABLES,
+			"    HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
+			info->hardware_id.value, ACPI_FORMAT_UINT64 (info->address),
+			info->current_status));
+		ACPI_MEM_FREE (info);
+	}
+
+	return (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_dump_root_devices
+ *
+ * PARAMETERS:  None
+ *
+ * DESCRIPTION: Dump all objects of type "device"
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_dump_root_devices (void)
+{
+	acpi_handle                     sys_bus_handle;
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_NAME ("ns_dump_root_devices");
+
+
+	/* Only dump the table if tracing is enabled */
+
+	if (!(ACPI_LV_TABLES & acpi_dbg_level)) {
+		return;
+	}
+
+	status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle);
+	if (ACPI_FAILURE (status)) {
+		return;
+	}
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
+		"Display of all devices in the namespace:\n"));
+
+	status = acpi_ns_walk_namespace (ACPI_TYPE_DEVICE, sys_bus_handle,
+			 ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
+			 acpi_ns_dump_one_device, NULL, NULL);
+}
+
+#endif
+
+
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
new file mode 100644
index 00000000000..0d008d53657
--- /dev/null
+++ b/drivers/acpi/namespace/nseval.c
@@ -0,0 +1,487 @@
+/*******************************************************************************
+ *
+ * Module Name: nseval - Object evaluation interfaces -- includes control
+ *                       method lookup and execution.
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acparser.h>
+#include <acpi/acinterp.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nseval")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_evaluate_relative
+ *
+ * PARAMETERS:  Pathname            - Name of method to execute, If NULL, the
+ *                                    handle is the object to execute
+ *              Info                - Method info block
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find and execute the requested method using the handle as a
+ *              scope
+ *
+ * MUTEX:       Locks Namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_evaluate_relative (
+	char                            *pathname,
+	struct acpi_parameter_info      *info)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node = NULL;
+	union acpi_generic_state        *scope_info;
+	char                            *internal_path = NULL;
+
+
+	ACPI_FUNCTION_TRACE ("ns_evaluate_relative");
+
+
+	/*
+	 * Must have a valid object handle
+	 */
+	if (!info || !info->node) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Build an internal name string for the method */
+
+	status = acpi_ns_internalize_name (pathname, &internal_path);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	scope_info = acpi_ut_create_generic_state ();
+	if (!scope_info) {
+		goto cleanup1;
+	}
+
+	/* Get the prefix handle and Node */
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	info->node = acpi_ns_map_handle_to_node (info->node);
+	if (!info->node) {
+		(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+		status = AE_BAD_PARAMETER;
+		goto cleanup;
+	}
+
+	/* Lookup the name in the namespace */
+
+	scope_info->scope.node = info->node;
+	status = acpi_ns_lookup (scope_info, internal_path, ACPI_TYPE_ANY,
+			 ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
+			 &node);
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+
+	if (ACPI_FAILURE (status)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Object [%s] not found [%s]\n",
+			pathname, acpi_format_exception (status)));
+		goto cleanup;
+	}
+
+	/*
+	 * Now that we have a handle to the object, we can attempt to evaluate it.
+	 */
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "%s [%p] Value %p\n",
+		pathname, node, acpi_ns_get_attached_object (node)));
+
+	info->node = node;
+	status = acpi_ns_evaluate_by_handle (info);
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "*** Completed eval of object %s ***\n",
+		pathname));
+
+cleanup:
+	acpi_ut_delete_generic_state (scope_info);
+
+cleanup1:
+	ACPI_MEM_FREE (internal_path);
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_evaluate_by_name
+ *
+ * PARAMETERS:  Pathname            - Fully qualified pathname to the object
+ *              Info                - Contains:
+ *                  return_object   - Where to put method's return value (if
+ *                                    any).  If NULL, no value is returned.
+ *                  Params          - List of parameters to pass to the method,
+ *                                    terminated by NULL.  Params itself may be
+ *                                    NULL if no parameters are being passed.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find and execute the requested method passing the given
+ *              parameters
+ *
+ * MUTEX:       Locks Namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_evaluate_by_name (
+	char                            *pathname,
+	struct acpi_parameter_info      *info)
+{
+	acpi_status                     status;
+	char                            *internal_path = NULL;
+
+
+	ACPI_FUNCTION_TRACE ("ns_evaluate_by_name");
+
+
+	/* Build an internal name string for the method */
+
+	status = acpi_ns_internalize_name (pathname, &internal_path);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	/* Lookup the name in the namespace */
+
+	status = acpi_ns_lookup (NULL, internal_path, ACPI_TYPE_ANY,
+			 ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL,
+			 &info->node);
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+
+	if (ACPI_FAILURE (status)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+			"Object at [%s] was not found, status=%.4X\n",
+			pathname, status));
+		goto cleanup;
+	}
+
+	/*
+	 * Now that we have a handle to the object, we can attempt to evaluate it.
+	 */
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "%s [%p] Value %p\n",
+		pathname, info->node, acpi_ns_get_attached_object (info->node)));
+
+	status = acpi_ns_evaluate_by_handle (info);
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "*** Completed eval of object %s ***\n",
+		pathname));
+
+
+cleanup:
+
+	/* Cleanup */
+
+	if (internal_path) {
+		ACPI_MEM_FREE (internal_path);
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_evaluate_by_handle
+ *
+ * PARAMETERS:  Handle              - Method Node to execute
+ *              Params              - List of parameters to pass to the method,
+ *                                    terminated by NULL.  Params itself may be
+ *                                    NULL if no parameters are being passed.
+ *              param_type          - Type of Parameter list
+ *              return_object       - Where to put method's return value (if
+ *                                    any).  If NULL, no value is returned.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute the requested method passing the given parameters
+ *
+ * MUTEX:       Locks Namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_evaluate_by_handle (
+	struct acpi_parameter_info      *info)
+{
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("ns_evaluate_by_handle");
+
+
+	/* Check if namespace has been initialized */
+
+	if (!acpi_gbl_root_node) {
+		return_ACPI_STATUS (AE_NO_NAMESPACE);
+	}
+
+	/* Parameter Validation */
+
+	if (!info) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Initialize the return value to an invalid object */
+
+	info->return_object = NULL;
+
+	/* Get the prefix handle and Node */
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	info->node = acpi_ns_map_handle_to_node (info->node);
+	if (!info->node) {
+		(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * For a method alias, we must grab the actual method node so that proper
+	 * scoping context will be established before execution.
+	 */
+	if (acpi_ns_get_type (info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) {
+		info->node = ACPI_CAST_PTR (struct acpi_namespace_node, info->node->object);
+	}
+
+	/*
+	 * Two major cases here:
+	 * 1) The object is an actual control method -- execute it.
+	 * 2) The object is not a method -- just return it's current value
+	 *
+	 * In both cases, the namespace is unlocked by the acpi_ns* procedure
+	 */
+	if (acpi_ns_get_type (info->node) == ACPI_TYPE_METHOD) {
+		/*
+		 * Case 1) We have an actual control method to execute
+		 */
+		status = acpi_ns_execute_control_method (info);
+	}
+	else {
+		/*
+		 * Case 2) Object is NOT a method, just return its current value
+		 */
+		status = acpi_ns_get_object_value (info);
+	}
+
+	/*
+	 * Check if there is a return value on the stack that must be dealt with
+	 */
+	if (status == AE_CTRL_RETURN_VALUE) {
+		/* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */
+
+		status = AE_OK;
+	}
+
+	/*
+	 * Namespace was unlocked by the handling acpi_ns* function, so we
+	 * just return
+	 */
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_execute_control_method
+ *
+ * PARAMETERS:  Info            - Method info block (w/params)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Execute the requested method passing the given parameters
+ *
+ * MUTEX:       Assumes namespace is locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_execute_control_method (
+	struct acpi_parameter_info      *info)
+{
+	acpi_status                     status;
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_TRACE ("ns_execute_control_method");
+
+
+	/* Verify that there is a method associated with this object */
+
+	obj_desc = acpi_ns_get_attached_object (info->node);
+	if (!obj_desc) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "No attached method object\n"));
+
+		(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+		return_ACPI_STATUS (AE_NULL_OBJECT);
+	}
+
+	ACPI_DUMP_PATHNAME (info->node, "Execute Method:",
+		ACPI_LV_INFO, _COMPONENT);
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Method at AML address %p Length %X\n",
+		obj_desc->method.aml_start + 1, obj_desc->method.aml_length - 1));
+
+	/*
+	 * Unlock the namespace before execution.  This allows namespace access
+	 * via the external Acpi* interfaces while a method is being executed.
+	 * However, any namespace deletion must acquire both the namespace and
+	 * interpreter locks to ensure that no thread is using the portion of the
+	 * namespace that is being deleted.
+	 */
+	status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/*
+	 * Execute the method via the interpreter.  The interpreter is locked
+	 * here before calling into the AML parser
+	 */
+	status = acpi_ex_enter_interpreter ();
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	status = acpi_psx_execute (info);
+	acpi_ex_exit_interpreter ();
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_object_value
+ *
+ * PARAMETERS:  Info            - Method info block (w/params)
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Return the current value of the object
+ *
+ * MUTEX:       Assumes namespace is locked, leaves namespace unlocked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_get_object_value (
+	struct acpi_parameter_info      *info)
+{
+	acpi_status                     status = AE_OK;
+	struct acpi_namespace_node      *resolved_node = info->node;
+
+
+	ACPI_FUNCTION_TRACE ("ns_get_object_value");
+
+
+	/*
+	 * Objects require additional resolution steps (e.g., the Node may be a
+	 * field that must be read, etc.) -- we can't just grab the object out of
+	 * the node.
+	 */
+
+	/*
+	 * Use resolve_node_to_value() to get the associated value. This call always
+	 * deletes obj_desc (allocated above).
+	 *
+	 * NOTE: we can get away with passing in NULL for a walk state because
+	 * obj_desc is guaranteed to not be a reference to either a method local or
+	 * a method argument (because this interface can only be called from the
+	 * acpi_evaluate external interface, never called from a running method.)
+	 *
+	 * Even though we do not directly invoke the interpreter for this, we must
+	 * enter it because we could access an opregion. The opregion access code
+	 * assumes that the interpreter is locked.
+	 *
+	 * We must release the namespace lock before entering the intepreter.
+	 */
+	status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	status = acpi_ex_enter_interpreter ();
+	if (ACPI_SUCCESS (status)) {
+		status = acpi_ex_resolve_node_to_value (&resolved_node, NULL);
+		/*
+		 * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed
+		 * in resolved_node.
+		 */
+		acpi_ex_exit_interpreter ();
+
+		if (ACPI_SUCCESS (status)) {
+			status = AE_CTRL_RETURN_VALUE;
+			info->return_object = ACPI_CAST_PTR
+					 (union acpi_operand_object, resolved_node);
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Returning object %p [%s]\n",
+				info->return_object,
+				acpi_ut_get_object_type_name (info->return_object)));
+		}
+	}
+
+	/* Namespace is unlocked */
+
+	return_ACPI_STATUS (status);
+}
+
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
new file mode 100644
index 00000000000..4a46b380605
--- /dev/null
+++ b/drivers/acpi/namespace/nsinit.c
@@ -0,0 +1,441 @@
+/******************************************************************************
+ *
+ * Module Name: nsinit - namespace initialization
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+#include <acpi/acinterp.h>
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsinit")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_initialize_objects
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Walk the entire namespace and perform any necessary
+ *              initialization on the objects found therein
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_initialize_objects (
+	void)
+{
+	acpi_status                     status;
+	struct acpi_init_walk_info      info;
+
+
+	ACPI_FUNCTION_TRACE ("ns_initialize_objects");
+
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+		"**** Starting initialization of namespace objects ****\n"));
+	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+		"Completing Region/Field/Buffer/Package initialization:"));
+
+	/* Set all init info to zero */
+
+	ACPI_MEMSET (&info, 0, sizeof (struct acpi_init_walk_info));
+
+	/* Walk entire namespace from the supplied root */
+
+	status = acpi_walk_namespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+			  ACPI_UINT32_MAX, acpi_ns_init_one_object,
+			  &info, NULL);
+	if (ACPI_FAILURE (status)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
+			acpi_format_exception (status)));
+	}
+
+	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+		"\nInitialized %hd/%hd Regions %hd/%hd Fields %hd/%hd Buffers %hd/%hd Packages (%hd nodes)\n",
+		info.op_region_init, info.op_region_count,
+		info.field_init,    info.field_count,
+		info.buffer_init,   info.buffer_count,
+		info.package_init,  info.package_count, info.object_count));
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+		"%hd Control Methods found\n", info.method_count));
+	ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH,
+		"%hd Op Regions found\n", info.op_region_count));
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_initialize_devices
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      acpi_status
+ *
+ * DESCRIPTION: Walk the entire namespace and initialize all ACPI devices.
+ *              This means running _INI on all present devices.
+ *
+ *              Note: We install PCI config space handler on region access,
+ *              not here.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_initialize_devices (
+	void)
+{
+	acpi_status                     status;
+	struct acpi_device_walk_info    info;
+
+
+	ACPI_FUNCTION_TRACE ("ns_initialize_devices");
+
+
+	/* Init counters */
+
+	info.device_count = 0;
+	info.num_STA = 0;
+	info.num_INI = 0;
+
+	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+		"Executing all Device _STA and_INI methods:"));
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/* Walk namespace for all objects */
+
+	status = acpi_ns_walk_namespace (ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,
+			  ACPI_UINT32_MAX, TRUE, acpi_ns_init_one_device, &info, NULL);
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+
+	if (ACPI_FAILURE (status)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "walk_namespace failed! %s\n",
+			acpi_format_exception (status)));
+	}
+
+	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+		"\n%hd Devices found containing: %hd _STA, %hd _INI methods\n",
+		info.device_count, info.num_STA, info.num_INI));
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_init_one_object
+ *
+ * PARAMETERS:  obj_handle      - Node
+ *              Level           - Current nesting level
+ *              Context         - Points to a init info struct
+ *              return_value    - Not used
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Callback from acpi_walk_namespace. Invoked for every object
+ *              within the  namespace.
+ *
+ *              Currently, the only objects that require initialization are:
+ *              1) Methods
+ *              2) Op Regions
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_init_one_object (
+	acpi_handle                     obj_handle,
+	u32                             level,
+	void                            *context,
+	void                            **return_value)
+{
+	acpi_object_type                type;
+	acpi_status                     status;
+	struct acpi_init_walk_info      *info = (struct acpi_init_walk_info *) context;
+	struct acpi_namespace_node      *node = (struct acpi_namespace_node *) obj_handle;
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_NAME ("ns_init_one_object");
+
+
+	info->object_count++;
+
+	/* And even then, we are only interested in a few object types */
+
+	type = acpi_ns_get_type (obj_handle);
+	obj_desc = acpi_ns_get_attached_object (node);
+	if (!obj_desc) {
+		return (AE_OK);
+	}
+
+	/* Increment counters for object types we are looking for */
+
+	switch (type) {
+	case ACPI_TYPE_REGION:
+		info->op_region_count++;
+		break;
+
+	case ACPI_TYPE_BUFFER_FIELD:
+		info->field_count++;
+		break;
+
+	case ACPI_TYPE_BUFFER:
+		info->buffer_count++;
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+		info->package_count++;
+		break;
+
+	default:
+
+		/* No init required, just exit now */
+		return (AE_OK);
+	}
+
+	/*
+	 * If the object is already initialized, nothing else to do
+	 */
+	if (obj_desc->common.flags & AOPOBJ_DATA_VALID) {
+		return (AE_OK);
+	}
+
+	/*
+	 * Must lock the interpreter before executing AML code
+	 */
+	status = acpi_ex_enter_interpreter ();
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/*
+	 * Each of these types can contain executable AML code within the
+	 * declaration.
+	 */
+	switch (type) {
+	case ACPI_TYPE_REGION:
+
+		info->op_region_init++;
+		status = acpi_ds_get_region_arguments (obj_desc);
+		break;
+
+	case ACPI_TYPE_BUFFER_FIELD:
+
+		info->field_init++;
+		status = acpi_ds_get_buffer_field_arguments (obj_desc);
+		break;
+
+	case ACPI_TYPE_BUFFER:
+
+		info->buffer_init++;
+		status = acpi_ds_get_buffer_arguments (obj_desc);
+		break;
+
+	case ACPI_TYPE_PACKAGE:
+
+		info->package_init++;
+		status = acpi_ds_get_package_arguments (obj_desc);
+		break;
+
+	default:
+		/* No other types can get here */
+		break;
+	}
+
+	if (ACPI_FAILURE (status)) {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_ERROR, "\n"));
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+				"Could not execute arguments for [%4.4s] (%s), %s\n",
+				acpi_ut_get_node_name (node), acpi_ut_get_type_name (type),
+				acpi_format_exception (status)));
+	}
+
+	/*
+	 * Print a dot for each object unless we are going to print the entire
+	 * pathname
+	 */
+	if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
+	}
+
+	/*
+	 * We ignore errors from above, and always return OK, since we don't want
+	 * to abort the walk on any single error.
+	 */
+	acpi_ex_exit_interpreter ();
+	return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_init_one_device
+ *
+ * PARAMETERS:  acpi_walk_callback
+ *
+ * RETURN:      acpi_status
+ *
+ * DESCRIPTION: This is called once per device soon after ACPI is enabled
+ *              to initialize each device. It determines if the device is
+ *              present, and if so, calls _INI.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_init_one_device (
+	acpi_handle                     obj_handle,
+	u32                             nesting_level,
+	void                            *context,
+	void                            **return_value)
+{
+	struct acpi_device_walk_info   *info = (struct acpi_device_walk_info *) context;
+	struct acpi_parameter_info      pinfo;
+	u32                             flags;
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("ns_init_one_device");
+
+
+	pinfo.parameters = NULL;
+	pinfo.parameter_type = ACPI_PARAM_ARGS;
+
+	pinfo.node = acpi_ns_map_handle_to_node (obj_handle);
+	if (!pinfo.node) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * We will run _STA/_INI on Devices, Processors and thermal_zones only
+	 */
+	if ((pinfo.node->type != ACPI_TYPE_DEVICE)      &&
+		(pinfo.node->type != ACPI_TYPE_PROCESSOR)   &&
+		(pinfo.node->type != ACPI_TYPE_THERMAL)) {
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) &&
+		(!(acpi_dbg_level & ACPI_LV_INFO))) {
+		ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT, "."));
+	}
+
+	info->device_count++;
+
+	/*
+	 * Run _STA to determine if we can run _INI on the device.
+	 */
+	ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (ACPI_TYPE_METHOD, pinfo.node, "_STA"));
+	status = acpi_ut_execute_STA (pinfo.node, &flags);
+
+	if (ACPI_FAILURE (status)) {
+		if (pinfo.node->type == ACPI_TYPE_DEVICE) {
+			/* Ignore error and move on to next device */
+
+			return_ACPI_STATUS (AE_OK);
+		}
+
+		/* _STA is not required for Processor or thermal_zone objects */
+	}
+	else {
+		info->num_STA++;
+
+		if (!(flags & 0x01)) {
+			/* Don't look at children of a not present device */
+
+			return_ACPI_STATUS(AE_CTRL_DEPTH);
+		}
+	}
+
+	/*
+	 * The device is present. Run _INI.
+	 */
+	ACPI_DEBUG_EXEC (acpi_ut_display_init_pathname (ACPI_TYPE_METHOD, pinfo.node, "_INI"));
+	status = acpi_ns_evaluate_relative ("_INI", &pinfo);
+	if (ACPI_FAILURE (status)) {
+		/* No _INI (AE_NOT_FOUND) means device requires no initialization */
+
+		if (status != AE_NOT_FOUND) {
+			/* Ignore error and move on to next device */
+
+#ifdef ACPI_DEBUG_OUTPUT
+			char                *scope_name = acpi_ns_get_external_pathname (pinfo.node);
+
+			ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "%s._INI failed: %s\n",
+					scope_name, acpi_format_exception (status)));
+
+			ACPI_MEM_FREE (scope_name);
+#endif
+		}
+
+		status = AE_OK;
+	}
+	else {
+		/* Delete any return object (especially if implicit_return is enabled) */
+
+		if (pinfo.return_object) {
+			acpi_ut_remove_reference (pinfo.return_object);
+		}
+
+		/* Count of successful INIs */
+
+		info->num_INI++;
+	}
+
+	if (acpi_gbl_init_handler) {
+		/* External initialization handler is present, call it */
+
+		status = acpi_gbl_init_handler (pinfo.node, ACPI_INIT_DEVICE_INI);
+	}
+
+	return_ACPI_STATUS (status);
+}
diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c
new file mode 100644
index 00000000000..1d7aedf68a7
--- /dev/null
+++ b/drivers/acpi/namespace/nsload.c
@@ -0,0 +1,460 @@
+/******************************************************************************
+ *
+ * Module Name: nsload - namespace loading/expanding/contracting procedures
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+#include <acpi/acdispat.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsload")
+
+
+#ifndef ACPI_NO_METHOD_EXECUTION
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_load_table
+ *
+ * PARAMETERS:  table_desc      - Descriptor for table to be loaded
+ *              Node            - Owning NS node
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load one ACPI table into the namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_load_table (
+	struct acpi_table_desc          *table_desc,
+	struct acpi_namespace_node      *node)
+{
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("ns_load_table");
+
+
+	/* Check if table contains valid AML (must be DSDT, PSDT, SSDT, etc.) */
+
+	if (!(acpi_gbl_table_data[table_desc->type].flags & ACPI_TABLE_EXECUTABLE)) {
+		/* Just ignore this table */
+
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	/* Check validity of the AML start and length */
+
+	if (!table_desc->aml_start) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Null AML pointer\n"));
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "AML block at %p\n",
+		table_desc->aml_start));
+
+	/* Ignore table if there is no AML contained within */
+
+	if (!table_desc->aml_length) {
+		ACPI_REPORT_WARNING (("Zero-length AML block in table [%4.4s]\n",
+			table_desc->pointer->signature));
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	/*
+	 * Parse the table and load the namespace with all named
+	 * objects found within.  Control methods are NOT parsed
+	 * at this time.  In fact, the control methods cannot be
+	 * parsed until the entire namespace is loaded, because
+	 * if a control method makes a forward reference (call)
+	 * to another control method, we can't continue parsing
+	 * because we don't know how many arguments to parse next!
+	 */
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+		"**** Loading table into namespace ****\n"));
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	status = acpi_ns_parse_table (table_desc, node->child);
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/*
+	 * Now we can parse the control methods.  We always parse
+	 * them here for a sanity check, and if configured for
+	 * just-in-time parsing, we delete the control method
+	 * parse trees.
+	 */
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+		"**** Begin Table Method Parsing and Object Initialization ****\n"));
+
+	status = acpi_ds_initialize_objects (table_desc, node);
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+		"**** Completed Table Method Parsing and Object Initialization ****\n"));
+
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_load_table_by_type
+ *
+ * PARAMETERS:  table_type          - Id of the table type to load
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load an ACPI table or tables into the namespace.  All tables
+ *              of the given type are loaded.  The mechanism allows this
+ *              routine to be called repeatedly.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_load_table_by_type (
+	acpi_table_type                 table_type)
+{
+	u32                             i;
+	acpi_status                     status;
+	struct acpi_table_desc          *table_desc;
+
+
+	ACPI_FUNCTION_TRACE ("ns_load_table_by_type");
+
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_TABLES);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/*
+	 * Table types supported are:
+	 * DSDT (one), SSDT/PSDT (multiple)
+	 */
+	switch (table_type) {
+	case ACPI_TABLE_DSDT:
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Loading DSDT\n"));
+
+		table_desc = acpi_gbl_table_lists[ACPI_TABLE_DSDT].next;
+
+		/* If table already loaded into namespace, just return */
+
+		if (table_desc->loaded_into_namespace) {
+			goto unlock_and_exit;
+		}
+
+		/* Now load the single DSDT */
+
+		status = acpi_ns_load_table (table_desc, acpi_gbl_root_node);
+		if (ACPI_SUCCESS (status)) {
+			table_desc->loaded_into_namespace = TRUE;
+		}
+		break;
+
+
+	case ACPI_TABLE_SSDT:
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Loading %d SSDTs\n",
+			acpi_gbl_table_lists[ACPI_TABLE_SSDT].count));
+
+		/*
+		 * Traverse list of SSDT tables
+		 */
+		table_desc = acpi_gbl_table_lists[ACPI_TABLE_SSDT].next;
+		for (i = 0; i < acpi_gbl_table_lists[ACPI_TABLE_SSDT].count; i++) {
+			/*
+			 * Only attempt to load table if it is not
+			 * already loaded!
+			 */
+			if (!table_desc->loaded_into_namespace) {
+				status = acpi_ns_load_table (table_desc, acpi_gbl_root_node);
+				if (ACPI_FAILURE (status)) {
+					break;
+				}
+
+				table_desc->loaded_into_namespace = TRUE;
+			}
+
+			table_desc = table_desc->next;
+		}
+		break;
+
+
+	case ACPI_TABLE_PSDT:
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Loading %d PSDTs\n",
+			acpi_gbl_table_lists[ACPI_TABLE_PSDT].count));
+
+		/*
+		 * Traverse list of PSDT tables
+		 */
+		table_desc = acpi_gbl_table_lists[ACPI_TABLE_PSDT].next;
+
+		for (i = 0; i < acpi_gbl_table_lists[ACPI_TABLE_PSDT].count; i++) {
+			/* Only attempt to load table if it is not already loaded! */
+
+			if (!table_desc->loaded_into_namespace) {
+				status = acpi_ns_load_table (table_desc, acpi_gbl_root_node);
+				if (ACPI_FAILURE (status)) {
+					break;
+				}
+
+				table_desc->loaded_into_namespace = TRUE;
+			}
+
+			table_desc = table_desc->next;
+		}
+		break;
+
+
+	default:
+		status = AE_SUPPORT;
+		break;
+	}
+
+
+unlock_and_exit:
+	(void) acpi_ut_release_mutex (ACPI_MTX_TABLES);
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_load_namespace
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load the name space from what ever is pointed to by DSDT.
+ *              (DSDT points to either the BIOS or a buffer.)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_load_namespace (
+	void)
+{
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("acpi_load_name_space");
+
+
+	/* There must be at least a DSDT installed */
+
+	if (acpi_gbl_DSDT == NULL) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "DSDT is not in memory\n"));
+		return_ACPI_STATUS (AE_NO_ACPI_TABLES);
+	}
+
+	/*
+	 * Load the namespace.  The DSDT is required,
+	 * but the SSDT and PSDT tables are optional.
+	 */
+	status = acpi_ns_load_table_by_type (ACPI_TABLE_DSDT);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/* Ignore exceptions from these */
+
+	(void) acpi_ns_load_table_by_type (ACPI_TABLE_SSDT);
+	(void) acpi_ns_load_table_by_type (ACPI_TABLE_PSDT);
+
+	ACPI_DEBUG_PRINT_RAW ((ACPI_DB_INIT,
+		"ACPI Namespace successfully loaded at root %p\n",
+		acpi_gbl_root_node));
+
+	return_ACPI_STATUS (status);
+}
+
+
+#ifdef ACPI_FUTURE_USAGE
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_delete_subtree
+ *
+ * PARAMETERS:  start_handle        - Handle in namespace where search begins
+ *
+ * RETURNS      Status
+ *
+ * DESCRIPTION: Walks the namespace starting at the given handle and deletes
+ *              all objects, entries, and scopes in the entire subtree.
+ *
+ *              Namespace/Interpreter should be locked or the subsystem should
+ *              be in shutdown before this routine is called.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_delete_subtree (
+	acpi_handle                     start_handle)
+{
+	acpi_status                     status;
+	acpi_handle                     child_handle;
+	acpi_handle                     parent_handle;
+	acpi_handle                     next_child_handle;
+	acpi_handle                     dummy;
+	u32                             level;
+
+
+	ACPI_FUNCTION_TRACE ("ns_delete_subtree");
+
+
+	parent_handle = start_handle;
+	child_handle = NULL;
+	level        = 1;
+
+	/*
+	 * Traverse the tree of objects until we bubble back up
+	 * to where we started.
+	 */
+	while (level > 0) {
+		/* Attempt to get the next object in this scope */
+
+		status = acpi_get_next_object (ACPI_TYPE_ANY, parent_handle,
+				  child_handle, &next_child_handle);
+
+		child_handle = next_child_handle;
+
+		/* Did we get a new object? */
+
+		if (ACPI_SUCCESS (status)) {
+			/* Check if this object has any children */
+
+			if (ACPI_SUCCESS (acpi_get_next_object (ACPI_TYPE_ANY, child_handle,
+					 NULL, &dummy))) {
+				/*
+				 * There is at least one child of this object,
+				 * visit the object
+				 */
+				level++;
+				parent_handle = child_handle;
+				child_handle = NULL;
+			}
+		}
+		else {
+			/*
+			 * No more children in this object, go back up to
+			 * the object's parent
+			 */
+			level--;
+
+			/* Delete all children now */
+
+			acpi_ns_delete_children (child_handle);
+
+			child_handle = parent_handle;
+			status = acpi_get_parent (parent_handle, &parent_handle);
+			if (ACPI_FAILURE (status)) {
+				return_ACPI_STATUS (status);
+			}
+		}
+	}
+
+	/* Now delete the starting object, and we are done */
+
+	acpi_ns_delete_node (child_handle);
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ *  FUNCTION:       acpi_ns_unload_name_space
+ *
+ *  PARAMETERS:     Handle          - Root of namespace subtree to be deleted
+ *
+ *  RETURN:         Status
+ *
+ *  DESCRIPTION:    Shrinks the namespace, typically in response to an undocking
+ *                  event.  Deletes an entire subtree starting from (and
+ *                  including) the given handle.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_unload_namespace (
+	acpi_handle                     handle)
+{
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("ns_unload_name_space");
+
+
+	/* Parameter validation */
+
+	if (!acpi_gbl_root_node) {
+		return_ACPI_STATUS (AE_NO_NAMESPACE);
+	}
+
+	if (!handle) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* This function does the real work */
+
+	status = acpi_ns_delete_subtree (handle);
+
+	return_ACPI_STATUS (status);
+}
+
+#endif  /*  ACPI_FUTURE_USAGE  */
+
+#endif
+
diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c
new file mode 100644
index 00000000000..b6f8f910eff
--- /dev/null
+++ b/drivers/acpi/namespace/nsnames.c
@@ -0,0 +1,265 @@
+/*******************************************************************************
+ *
+ * Module Name: nsnames - Name manipulation and search
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/amlcode.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsnames")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_build_external_path
+ *
+ * PARAMETERS:  Node            - NS node whose pathname is needed
+ *              Size            - Size of the pathname
+ *              *name_buffer    - Where to return the pathname
+ *
+ * RETURN:      Places the pathname into the name_buffer, in external format
+ *              (name segments separated by path separators)
+ *
+ * DESCRIPTION: Generate a full pathaname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_build_external_path (
+	struct acpi_namespace_node      *node,
+	acpi_size                       size,
+	char                            *name_buffer)
+{
+	acpi_size                       index;
+	struct acpi_namespace_node      *parent_node;
+
+
+	ACPI_FUNCTION_NAME ("ns_build_external_path");
+
+
+	/* Special case for root */
+
+	index = size - 1;
+	if (index < ACPI_NAME_SIZE) {
+		name_buffer[0] = AML_ROOT_PREFIX;
+		name_buffer[1] = 0;
+		return;
+	}
+
+	/* Store terminator byte, then build name backwards */
+
+	parent_node = node;
+	name_buffer[index] = 0;
+
+	while ((index > ACPI_NAME_SIZE) && (parent_node != acpi_gbl_root_node)) {
+		index -= ACPI_NAME_SIZE;
+
+		/* Put the name into the buffer */
+
+		ACPI_MOVE_32_TO_32 ((name_buffer + index), &parent_node->name);
+		parent_node = acpi_ns_get_parent_node (parent_node);
+
+		/* Prefix name with the path separator */
+
+		index--;
+		name_buffer[index] = ACPI_PATH_SEPARATOR;
+	}
+
+	/* Overwrite final separator with the root prefix character */
+
+	name_buffer[index] = AML_ROOT_PREFIX;
+
+	if (index != 0) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+			"Could not construct pathname; index=%X, size=%X, Path=%s\n",
+			(u32) index, (u32) size, &name_buffer[size]));
+	}
+
+	return;
+}
+
+
+#ifdef ACPI_DEBUG_OUTPUT
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_external_pathname
+ *
+ * PARAMETERS:  Node            - NS node whose pathname is needed
+ *
+ * RETURN:      Pointer to storage containing the fully qualified name of
+ *              the node, In external format (name segments separated by path
+ *              separators.)
+ *
+ * DESCRIPTION: Used for debug printing in acpi_ns_search_table().
+ *
+ ******************************************************************************/
+
+char *
+acpi_ns_get_external_pathname (
+	struct acpi_namespace_node      *node)
+{
+	char                            *name_buffer;
+	acpi_size                       size;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ns_get_external_pathname", node);
+
+
+	/* Calculate required buffer size based on depth below root */
+
+	size = acpi_ns_get_pathname_length (node);
+
+	/* Allocate a buffer to be returned to caller */
+
+	name_buffer = ACPI_MEM_CALLOCATE (size);
+	if (!name_buffer) {
+		ACPI_REPORT_ERROR (("ns_get_table_pathname: allocation failure\n"));
+		return_PTR (NULL);
+	}
+
+	/* Build the path in the allocated buffer */
+
+	acpi_ns_build_external_path (node, size, name_buffer);
+	return_PTR (name_buffer);
+}
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_pathname_length
+ *
+ * PARAMETERS:  Node        - Namespace node
+ *
+ * RETURN:      Length of path, including prefix
+ *
+ * DESCRIPTION: Get the length of the pathname string for this node
+ *
+ ******************************************************************************/
+
+acpi_size
+acpi_ns_get_pathname_length (
+	struct acpi_namespace_node      *node)
+{
+	acpi_size                       size;
+	struct acpi_namespace_node      *next_node;
+
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	/*
+	 * Compute length of pathname as 5 * number of name segments.
+	 * Go back up the parent tree to the root
+	 */
+	size = 0;
+	next_node = node;
+
+	while (next_node && (next_node != acpi_gbl_root_node)) {
+		size += ACPI_PATH_SEGMENT_LENGTH;
+		next_node = acpi_ns_get_parent_node (next_node);
+	}
+
+	if (!size) {
+		size = 1;       /* Root node case */
+	}
+
+	return (size + 1);  /* +1 for null string terminator */
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_handle_to_pathname
+ *
+ * PARAMETERS:  target_handle           - Handle of named object whose name is
+ *                                        to be found
+ *              Buffer                  - Where the pathname is returned
+ *
+ * RETURN:      Status, Buffer is filled with pathname if status is AE_OK
+ *
+ * DESCRIPTION: Build and return a full namespace pathname
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_handle_to_pathname (
+	acpi_handle                     target_handle,
+	struct acpi_buffer              *buffer)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node;
+	acpi_size                       required_size;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ns_handle_to_pathname", target_handle);
+
+
+	node = acpi_ns_map_handle_to_node (target_handle);
+	if (!node) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Determine size required for the caller buffer */
+
+	required_size = acpi_ns_get_pathname_length (node);
+
+	/* Validate/Allocate/Clear caller buffer */
+
+	status = acpi_ut_initialize_buffer (buffer, required_size);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/* Build the path in the caller buffer */
+
+	acpi_ns_build_external_path (node, required_size, buffer->pointer);
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "%s [%X] \n",
+		(char *) buffer->pointer, (u32) required_size));
+	return_ACPI_STATUS (AE_OK);
+}
+
+
diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c
new file mode 100644
index 00000000000..4e41e66db61
--- /dev/null
+++ b/drivers/acpi/namespace/nsobject.c
@@ -0,0 +1,461 @@
+/*******************************************************************************
+ *
+ * Module Name: nsobject - Utilities for objects attached to namespace
+ *                         table entries
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsobject")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_attach_object
+ *
+ * PARAMETERS:  Node                - Parent Node
+ *              Object              - Object to be attached
+ *              Type                - Type of object, or ACPI_TYPE_ANY if not
+ *                                    known
+ *
+ * DESCRIPTION: Record the given object as the value associated with the
+ *              name whose acpi_handle is passed.  If Object is NULL
+ *              and Type is ACPI_TYPE_ANY, set the name as having no value.
+ *              Note: Future may require that the Node->Flags field be passed
+ *              as a parameter.
+ *
+ * MUTEX:       Assumes namespace is locked
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_attach_object (
+	struct acpi_namespace_node      *node,
+	union acpi_operand_object       *object,
+	acpi_object_type                type)
+{
+	union acpi_operand_object       *obj_desc;
+	union acpi_operand_object       *last_obj_desc;
+	acpi_object_type                object_type = ACPI_TYPE_ANY;
+
+
+	ACPI_FUNCTION_TRACE ("ns_attach_object");
+
+
+	/*
+	 * Parameter validation
+	 */
+	if (!node) {
+		/* Invalid handle */
+
+		ACPI_REPORT_ERROR (("ns_attach_object: Null named_obj handle\n"));
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	if (!object && (ACPI_TYPE_ANY != type)) {
+		/* Null object */
+
+		ACPI_REPORT_ERROR (("ns_attach_object: Null object, but type not ACPI_TYPE_ANY\n"));
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	if (ACPI_GET_DESCRIPTOR_TYPE (node) != ACPI_DESC_TYPE_NAMED) {
+		/* Not a name handle */
+
+		ACPI_REPORT_ERROR (("ns_attach_object: Invalid handle %p [%s]\n",
+				node, acpi_ut_get_descriptor_name (node)));
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Check if this object is already attached */
+
+	if (node->object == object) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Obj %p already installed in name_obj %p\n",
+			object, node));
+
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	/* If null object, we will just install it */
+
+	if (!object) {
+		obj_desc   = NULL;
+		object_type = ACPI_TYPE_ANY;
+	}
+
+	/*
+	 * If the source object is a namespace Node with an attached object,
+	 * we will use that (attached) object
+	 */
+	else if ((ACPI_GET_DESCRIPTOR_TYPE (object) == ACPI_DESC_TYPE_NAMED) &&
+			((struct acpi_namespace_node *) object)->object) {
+		/*
+		 * Value passed is a name handle and that name has a
+		 * non-null value.  Use that name's value and type.
+		 */
+		obj_desc   = ((struct acpi_namespace_node *) object)->object;
+		object_type = ((struct acpi_namespace_node *) object)->type;
+	}
+
+	/*
+	 * Otherwise, we will use the parameter object, but we must type
+	 * it first
+	 */
+	else {
+		obj_desc = (union acpi_operand_object   *) object;
+
+		/* Use the given type */
+
+		object_type = type;
+	}
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Installing %p into Node %p [%4.4s]\n",
+		obj_desc, node, acpi_ut_get_node_name (node)));
+
+	/* Detach an existing attached object if present */
+
+	if (node->object) {
+		acpi_ns_detach_object (node);
+	}
+
+	if (obj_desc) {
+		/*
+		 * Must increment the new value's reference count
+		 * (if it is an internal object)
+		 */
+		acpi_ut_add_reference (obj_desc);
+
+		/*
+		 * Handle objects with multiple descriptors - walk
+		 * to the end of the descriptor list
+		 */
+		last_obj_desc = obj_desc;
+		while (last_obj_desc->common.next_object) {
+			last_obj_desc = last_obj_desc->common.next_object;
+		}
+
+		/* Install the object at the front of the object list */
+
+		last_obj_desc->common.next_object = node->object;
+	}
+
+	node->type     = (u8) object_type;
+	node->object   = obj_desc;
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_detach_object
+ *
+ * PARAMETERS:  Node           - An node whose object will be detached
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Detach/delete an object associated with a namespace node.
+ *              if the object is an allocated object, it is freed.
+ *              Otherwise, the field is simply cleared.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_detach_object (
+	struct acpi_namespace_node      *node)
+{
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_TRACE ("ns_detach_object");
+
+
+	obj_desc = node->object;
+
+	if (!obj_desc ||
+		(ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA)) {
+		return_VOID;
+	}
+
+	/* Clear the entry in all cases */
+
+	node->object = NULL;
+	if (ACPI_GET_DESCRIPTOR_TYPE (obj_desc) == ACPI_DESC_TYPE_OPERAND) {
+		node->object = obj_desc->common.next_object;
+		if (node->object &&
+		   (ACPI_GET_OBJECT_TYPE (node->object) != ACPI_TYPE_LOCAL_DATA)) {
+			node->object = node->object->common.next_object;
+		}
+	}
+
+	/* Reset the node type to untyped */
+
+	node->type = ACPI_TYPE_ANY;
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "Node %p [%4.4s] Object %p\n",
+		node, acpi_ut_get_node_name (node), obj_desc));
+
+	/* Remove one reference on the object (and all subobjects) */
+
+	acpi_ut_remove_reference (obj_desc);
+	return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_attached_object
+ *
+ * PARAMETERS:  Node             - Parent Node to be examined
+ *
+ * RETURN:      Current value of the object field from the Node whose
+ *              handle is passed
+ *
+ * DESCRIPTION: Obtain the object attached to a namespace node.
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *
+acpi_ns_get_attached_object (
+	struct acpi_namespace_node      *node)
+{
+	ACPI_FUNCTION_TRACE_PTR ("ns_get_attached_object", node);
+
+
+	if (!node) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_WARN, "Null Node ptr\n"));
+		return_PTR (NULL);
+	}
+
+	if (!node->object ||
+			((ACPI_GET_DESCRIPTOR_TYPE (node->object) != ACPI_DESC_TYPE_OPERAND) &&
+			 (ACPI_GET_DESCRIPTOR_TYPE (node->object) != ACPI_DESC_TYPE_NAMED))  ||
+		(ACPI_GET_OBJECT_TYPE (node->object) == ACPI_TYPE_LOCAL_DATA)) {
+		return_PTR (NULL);
+	}
+
+	return_PTR (node->object);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_secondary_object
+ *
+ * PARAMETERS:  Node             - Parent Node to be examined
+ *
+ * RETURN:      Current value of the object field from the Node whose
+ *              handle is passed.
+ *
+ * DESCRIPTION: Obtain a secondary object associated with a namespace node.
+ *
+ ******************************************************************************/
+
+union acpi_operand_object *
+acpi_ns_get_secondary_object (
+	union acpi_operand_object       *obj_desc)
+{
+	ACPI_FUNCTION_TRACE_PTR ("ns_get_secondary_object", obj_desc);
+
+
+	if ((!obj_desc)                                               ||
+		(ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) ||
+		(!obj_desc->common.next_object)                           ||
+		(ACPI_GET_OBJECT_TYPE (obj_desc->common.next_object) == ACPI_TYPE_LOCAL_DATA)) {
+		return_PTR (NULL);
+	}
+
+	return_PTR (obj_desc->common.next_object);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_attach_data
+ *
+ * PARAMETERS:  Node            - Namespace node
+ *              Handler         - Handler to be associated with the data
+ *              Data            - Data to be attached
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Low-level attach data.  Create and attach a Data object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_attach_data (
+	struct acpi_namespace_node      *node,
+	acpi_object_handler             handler,
+	void                            *data)
+{
+	union acpi_operand_object       *prev_obj_desc;
+	union acpi_operand_object       *obj_desc;
+	union acpi_operand_object       *data_desc;
+
+
+	/* We only allow one attachment per handler */
+
+	prev_obj_desc = NULL;
+	obj_desc = node->object;
+	while (obj_desc) {
+		if ((ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
+			(obj_desc->data.handler == handler)) {
+			return (AE_ALREADY_EXISTS);
+		}
+
+		prev_obj_desc = obj_desc;
+		obj_desc = obj_desc->common.next_object;
+	}
+
+	/* Create an internal object for the data */
+
+	data_desc = acpi_ut_create_internal_object (ACPI_TYPE_LOCAL_DATA);
+	if (!data_desc) {
+		return (AE_NO_MEMORY);
+	}
+
+	data_desc->data.handler = handler;
+	data_desc->data.pointer = data;
+
+	/* Install the data object */
+
+	if (prev_obj_desc) {
+		prev_obj_desc->common.next_object = data_desc;
+	}
+	else {
+		node->object = data_desc;
+	}
+
+	return (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_detach_data
+ *
+ * PARAMETERS:  Node            - Namespace node
+ *              Handler         - Handler associated with the data
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Low-level detach data.  Delete the data node, but the caller
+ *              is responsible for the actual data.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_detach_data (
+	struct acpi_namespace_node      *node,
+	acpi_object_handler             handler)
+{
+	union acpi_operand_object       *obj_desc;
+	union acpi_operand_object       *prev_obj_desc;
+
+
+	prev_obj_desc = NULL;
+	obj_desc = node->object;
+	while (obj_desc) {
+		if ((ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
+			(obj_desc->data.handler == handler)) {
+			if (prev_obj_desc) {
+				prev_obj_desc->common.next_object = obj_desc->common.next_object;
+			}
+			else {
+				node->object = obj_desc->common.next_object;
+			}
+
+			acpi_ut_remove_reference (obj_desc);
+			return (AE_OK);
+		}
+
+		prev_obj_desc = obj_desc;
+		obj_desc = obj_desc->common.next_object;
+	}
+
+	return (AE_NOT_FOUND);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_attached_data
+ *
+ * PARAMETERS:  Node            - Namespace node
+ *              Handler         - Handler associated with the data
+ *              Data            - Where the data is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Low level interface to obtain data previously associated with
+ *              a namespace node.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_get_attached_data (
+	struct acpi_namespace_node      *node,
+	acpi_object_handler             handler,
+	void                            **data)
+{
+	union acpi_operand_object       *obj_desc;
+
+
+	obj_desc = node->object;
+	while (obj_desc) {
+		if ((ACPI_GET_OBJECT_TYPE (obj_desc) == ACPI_TYPE_LOCAL_DATA) &&
+			(obj_desc->data.handler == handler)) {
+			*data = obj_desc->data.pointer;
+			return (AE_OK);
+		}
+
+		obj_desc = obj_desc->common.next_object;
+	}
+
+	return (AE_NOT_FOUND);
+}
+
+
diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c
new file mode 100644
index 00000000000..a0e13e8d376
--- /dev/null
+++ b/drivers/acpi/namespace/nsparse.c
@@ -0,0 +1,171 @@
+/******************************************************************************
+ *
+ * Module Name: nsparse - namespace interface to AML parser
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+#include <acpi/acparser.h>
+#include <acpi/acdispat.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsparse")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    ns_one_complete_parse
+ *
+ * PARAMETERS:  pass_number             - 1 or 2
+ *              table_desc              - The table to be parsed.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform one complete parse of an ACPI/AML table.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_one_complete_parse (
+	u32                             pass_number,
+	struct acpi_table_desc          *table_desc)
+{
+	union acpi_parse_object         *parse_root;
+	acpi_status                     status;
+	struct acpi_walk_state          *walk_state;
+
+
+	ACPI_FUNCTION_TRACE ("ns_one_complete_parse");
+
+
+	/* Create and init a Root Node */
+
+	parse_root = acpi_ps_create_scope_op ();
+	if (!parse_root) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/* Create and initialize a new walk state */
+
+	walk_state = acpi_ds_create_walk_state (table_desc->table_id,
+			   NULL, NULL, NULL);
+	if (!walk_state) {
+		acpi_ps_free_op (parse_root);
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	status = acpi_ds_init_aml_walk (walk_state, parse_root, NULL,
+			  table_desc->aml_start, table_desc->aml_length,
+			  NULL, pass_number);
+	if (ACPI_FAILURE (status)) {
+		acpi_ds_delete_walk_state (walk_state);
+		return_ACPI_STATUS (status);
+	}
+
+	/* Parse the AML */
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_PARSE, "*PARSE* pass %d parse\n", pass_number));
+	status = acpi_ps_parse_aml (walk_state);
+
+	acpi_ps_delete_parse_tree (parse_root);
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_parse_table
+ *
+ * PARAMETERS:  table_desc      - An ACPI table descriptor for table to parse
+ *              start_node      - Where to enter the table into the namespace
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Parse AML within an ACPI table and return a tree of ops
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_parse_table (
+	struct acpi_table_desc          *table_desc,
+	struct acpi_namespace_node      *start_node)
+{
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("ns_parse_table");
+
+
+	/*
+	 * AML Parse, pass 1
+	 *
+	 * In this pass, we load most of the namespace.  Control methods
+	 * are not parsed until later.  A parse tree is not created.  Instead,
+	 * each Parser Op subtree is deleted when it is finished.  This saves
+	 * a great deal of memory, and allows a small cache of parse objects
+	 * to service the entire parse.  The second pass of the parse then
+	 * performs another complete parse of the AML..
+	 */
+	status = acpi_ns_one_complete_parse (1, table_desc);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/*
+	 * AML Parse, pass 2
+	 *
+	 * In this pass, we resolve forward references and other things
+	 * that could not be completed during the first pass.
+	 * Another complete parse of the AML is performed, but the
+	 * overhead of this is compensated for by the fact that the
+	 * parse objects are all cached.
+	 */
+	status = acpi_ns_one_complete_parse (2, table_desc);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	return_ACPI_STATUS (status);
+}
+
+
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c
new file mode 100644
index 00000000000..0e6dea23603
--- /dev/null
+++ b/drivers/acpi/namespace/nssearch.c
@@ -0,0 +1,381 @@
+/*******************************************************************************
+ *
+ * Module Name: nssearch - Namespace search
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nssearch")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_search_node
+ *
+ * PARAMETERS:  *target_name        - Ascii ACPI name to search for
+ *              *Node               - Starting node where search will begin
+ *              Type                - Object type to match
+ *              **return_node       - Where the matched Named obj is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Search a single level of the namespace.  Performs a
+ *              simple search of the specified level, and does not add
+ *              entries or search parents.
+ *
+ *
+ *      Named object lists are built (and subsequently dumped) in the
+ *      order in which the names are encountered during the namespace load;
+ *
+ *      All namespace searching is linear in this implementation, but
+ *      could be easily modified to support any improved search
+ *      algorithm.  However, the linear search was chosen for simplicity
+ *      and because the trees are small and the other interpreter
+ *      execution overhead is relatively high.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_search_node (
+	u32                             target_name,
+	struct acpi_namespace_node      *node,
+	acpi_object_type                type,
+	struct acpi_namespace_node      **return_node)
+{
+	struct acpi_namespace_node      *next_node;
+
+
+	ACPI_FUNCTION_TRACE ("ns_search_node");
+
+
+#ifdef ACPI_DEBUG_OUTPUT
+	if (ACPI_LV_NAMES & acpi_dbg_level) {
+		char                        *scope_name;
+
+		scope_name = acpi_ns_get_external_pathname (node);
+		if (scope_name) {
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Searching %s (%p) For [%4.4s] (%s)\n",
+				scope_name, node, (char *) &target_name,
+				acpi_ut_get_type_name (type)));
+
+			ACPI_MEM_FREE (scope_name);
+		}
+	}
+#endif
+
+	/*
+	 * Search for name at this namespace level, which is to say that we
+	 * must search for the name among the children of this object
+	 */
+	next_node = node->child;
+	while (next_node) {
+		/* Check for match against the name */
+
+		if (next_node->name.integer == target_name) {
+			/* Resolve a control method alias if any */
+
+			if (acpi_ns_get_type (next_node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) {
+				next_node = ACPI_CAST_PTR (struct acpi_namespace_node, next_node->object);
+			}
+
+			/*
+			 * Found matching entry.
+			 */
+			ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+				"Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n",
+				(char *) &target_name, acpi_ut_get_type_name (next_node->type),
+				next_node, acpi_ut_get_node_name (node), node));
+
+			*return_node = next_node;
+			return_ACPI_STATUS (AE_OK);
+		}
+
+		/*
+		 * The last entry in the list points back to the parent,
+		 * so a flag is used to indicate the end-of-list
+		 */
+		if (next_node->flags & ANOBJ_END_OF_PEER_LIST) {
+			/* Searched entire list, we are done */
+
+			break;
+		}
+
+		/* Didn't match name, move on to the next peer object */
+
+		next_node = next_node->peer;
+	}
+
+	/* Searched entire namespace level, not found */
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+		"Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n",
+		(char *) &target_name, acpi_ut_get_type_name (type),
+		acpi_ut_get_node_name (node), node, node->child));
+
+	return_ACPI_STATUS (AE_NOT_FOUND);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_search_parent_tree
+ *
+ * PARAMETERS:  *target_name        - Ascii ACPI name to search for
+ *              *Node               - Starting node where search will begin
+ *              Type                - Object type to match
+ *              **return_node       - Where the matched Node is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Called when a name has not been found in the current namespace
+ *              level.  Before adding it or giving up, ACPI scope rules require
+ *              searching enclosing scopes in cases identified by acpi_ns_local().
+ *
+ *              "A name is located by finding the matching name in the current
+ *              name space, and then in the parent name space. If the parent
+ *              name space does not contain the name, the search continues
+ *              recursively until either the name is found or the name space
+ *              does not have a parent (the root of the name space).  This
+ *              indicates that the name is not found" (From ACPI Specification,
+ *              section 5.3)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_search_parent_tree (
+	u32                             target_name,
+	struct acpi_namespace_node      *node,
+	acpi_object_type                type,
+	struct acpi_namespace_node      **return_node)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *parent_node;
+
+
+	ACPI_FUNCTION_TRACE ("ns_search_parent_tree");
+
+
+	parent_node = acpi_ns_get_parent_node (node);
+
+	/*
+	 * If there is no parent (i.e., we are at the root) or type is "local",
+	 * we won't be searching the parent tree.
+	 */
+	if (!parent_node) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES, "[%4.4s] has no parent\n",
+			(char *) &target_name));
+		return_ACPI_STATUS (AE_NOT_FOUND);
+	}
+
+	if (acpi_ns_local (type)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+			"[%4.4s] type [%s] must be local to this scope (no parent search)\n",
+			(char *) &target_name, acpi_ut_get_type_name (type)));
+		return_ACPI_STATUS (AE_NOT_FOUND);
+	}
+
+	/* Search the parent tree */
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+		"Searching parent [%4.4s] for [%4.4s]\n",
+		acpi_ut_get_node_name (parent_node), (char *) &target_name));
+
+	/*
+	 * Search parents until target is found or we have backed up to the root
+	 */
+	while (parent_node) {
+		/*
+		 * Search parent scope.  Use TYPE_ANY because we don't care about the
+		 * object type at this point, we only care about the existence of
+		 * the actual name we are searching for.  Typechecking comes later.
+		 */
+		status = acpi_ns_search_node (target_name, parent_node,
+				  ACPI_TYPE_ANY, return_node);
+		if (ACPI_SUCCESS (status)) {
+			return_ACPI_STATUS (status);
+		}
+
+		/*
+		 * Not found here, go up another level
+		 * (until we reach the root)
+		 */
+		parent_node = acpi_ns_get_parent_node (parent_node);
+	}
+
+	/* Not found in parent tree */
+
+	return_ACPI_STATUS (AE_NOT_FOUND);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_search_and_enter
+ *
+ * PARAMETERS:  target_name         - Ascii ACPI name to search for (4 chars)
+ *              walk_state          - Current state of the walk
+ *              *Node               - Starting node where search will begin
+ *              interpreter_mode    - Add names only in ACPI_MODE_LOAD_PASS_x.
+ *                                    Otherwise,search only.
+ *              Type                - Object type to match
+ *              Flags               - Flags describing the search restrictions
+ *              **return_node       - Where the Node is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Search for a name segment in a single namespace level,
+ *              optionally adding it if it is not found.  If the passed
+ *              Type is not Any and the type previously stored in the
+ *              entry was Any (i.e. unknown), update the stored type.
+ *
+ *              In ACPI_IMODE_EXECUTE, search only.
+ *              In other modes, search and add if not found.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_search_and_enter (
+	u32                             target_name,
+	struct acpi_walk_state          *walk_state,
+	struct acpi_namespace_node      *node,
+	acpi_interpreter_mode           interpreter_mode,
+	acpi_object_type                type,
+	u32                             flags,
+	struct acpi_namespace_node      **return_node)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *new_node;
+
+
+	ACPI_FUNCTION_TRACE ("ns_search_and_enter");
+
+
+	/* Parameter validation */
+
+	if (!node || !target_name || !return_node) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+			"Null param: Node %p Name %X return_node %p\n",
+			node, target_name, return_node));
+
+		ACPI_REPORT_ERROR (("ns_search_and_enter: Null parameter\n"));
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Name must consist of printable characters */
+
+	if (!acpi_ut_valid_acpi_name (target_name)) {
+		ACPI_REPORT_ERROR (("ns_search_and_enter: Bad character in ACPI Name: %X\n",
+			target_name));
+		return_ACPI_STATUS (AE_BAD_CHARACTER);
+	}
+
+	/* Try to find the name in the namespace level specified by the caller */
+
+	*return_node = ACPI_ENTRY_NOT_FOUND;
+	status = acpi_ns_search_node (target_name, node, type, return_node);
+	if (status != AE_NOT_FOUND) {
+		/*
+		 * If we found it AND the request specifies that a find is an error,
+		 * return the error
+		 */
+		if ((status == AE_OK) &&
+			(flags & ACPI_NS_ERROR_IF_FOUND)) {
+			status = AE_ALREADY_EXISTS;
+		}
+
+		/*
+		 * Either found it or there was an error
+		 * -- finished either way
+		 */
+		return_ACPI_STATUS (status);
+	}
+
+	/*
+	 * The name was not found.  If we are NOT performing the first pass
+	 * (name entry) of loading the namespace, search the parent tree (all the
+	 * way to the root if necessary.) We don't want to perform the parent
+	 * search when the namespace is actually being loaded.  We want to perform
+	 * the search when namespace references are being resolved (load pass 2)
+	 * and during the execution phase.
+	 */
+	if ((interpreter_mode != ACPI_IMODE_LOAD_PASS1) &&
+		(flags & ACPI_NS_SEARCH_PARENT)) {
+		/*
+		 * Not found at this level - search parent tree according to the
+		 * ACPI specification
+		 */
+		status = acpi_ns_search_parent_tree (target_name, node, type, return_node);
+		if (ACPI_SUCCESS (status)) {
+			return_ACPI_STATUS (status);
+		}
+	}
+
+	/*
+	 * In execute mode, just search, never add names.  Exit now.
+	 */
+	if (interpreter_mode == ACPI_IMODE_EXECUTE) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_NAMES,
+			"%4.4s Not found in %p [Not adding]\n",
+			(char *) &target_name, node));
+
+		return_ACPI_STATUS (AE_NOT_FOUND);
+	}
+
+	/* Create the new named object */
+
+	new_node = acpi_ns_create_node (target_name);
+	if (!new_node) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/* Install the new object into the parent's list of children */
+
+	acpi_ns_install_node (walk_state, node, new_node, type);
+	*return_node = new_node;
+
+	return_ACPI_STATUS (AE_OK);
+}
+
diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c
new file mode 100644
index 00000000000..75da76cc0b1
--- /dev/null
+++ b/drivers/acpi/namespace/nsutils.c
@@ -0,0 +1,1069 @@
+/******************************************************************************
+ *
+ * Module Name: nsutils - Utilities for accessing ACPI namespace, accessing
+ *                        parents and siblings and Scope manipulation
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+#include <acpi/amlcode.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsutils")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_report_error
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              component_id        - Caller's component ID (for error output)
+ *              Message             - Error message to use on failure
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print warning message with full pathname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_report_error (
+	char                            *module_name,
+	u32                             line_number,
+	u32                             component_id,
+	char                            *internal_name,
+	acpi_status                     lookup_status)
+{
+	acpi_status                     status;
+	char                            *name = NULL;
+
+
+	acpi_os_printf ("%8s-%04d: *** Error: Looking up ",
+		module_name, line_number);
+
+	if (lookup_status == AE_BAD_CHARACTER) {
+		/* There is a non-ascii character in the name */
+
+		acpi_os_printf ("[0x%4.4X] (NON-ASCII)\n",
+			*(ACPI_CAST_PTR (u32, internal_name)));
+	}
+	else {
+		/* Convert path to external format */
+
+		status = acpi_ns_externalize_name (ACPI_UINT32_MAX,
+				 internal_name, NULL, &name);
+
+		/* Print target name */
+
+		if (ACPI_SUCCESS (status)) {
+			acpi_os_printf ("[%s]", name);
+		}
+		else {
+			acpi_os_printf ("[COULD NOT EXTERNALIZE NAME]");
+		}
+
+		if (name) {
+			ACPI_MEM_FREE (name);
+		}
+	}
+
+	acpi_os_printf (" in namespace, %s\n",
+		acpi_format_exception (lookup_status));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_report_method_error
+ *
+ * PARAMETERS:  module_name         - Caller's module name (for error output)
+ *              line_number         - Caller's line number (for error output)
+ *              component_id        - Caller's component ID (for error output)
+ *              Message             - Error message to use on failure
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print warning message with full pathname
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_report_method_error (
+	char                            *module_name,
+	u32                             line_number,
+	u32                             component_id,
+	char                            *message,
+	struct acpi_namespace_node      *prefix_node,
+	char                            *path,
+	acpi_status                     method_status)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node = prefix_node;
+
+
+	if (path) {
+		status = acpi_ns_get_node_by_path (path, prefix_node,
+				 ACPI_NS_NO_UPSEARCH, &node);
+		if (ACPI_FAILURE (status)) {
+			acpi_os_printf ("report_method_error: Could not get node\n");
+			return;
+		}
+	}
+
+	acpi_os_printf ("%8s-%04d: *** Error: ", module_name, line_number);
+	acpi_ns_print_node_pathname (node, message);
+	acpi_os_printf (", %s\n", acpi_format_exception (method_status));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_print_node_pathname
+ *
+ * PARAMETERS:  Node                - Object
+ *              Msg                 - Prefix message
+ *
+ * DESCRIPTION: Print an object's full namespace pathname
+ *              Manages allocation/freeing of a pathname buffer
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_print_node_pathname (
+	struct acpi_namespace_node      *node,
+	char                            *msg)
+{
+	struct acpi_buffer              buffer;
+	acpi_status                     status;
+
+
+	if (!node) {
+		acpi_os_printf ("[NULL NAME]");
+		return;
+	}
+
+	/* Convert handle to full pathname and print it (with supplied message) */
+
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+
+	status = acpi_ns_handle_to_pathname (node, &buffer);
+	if (ACPI_SUCCESS (status)) {
+		if (msg) {
+			acpi_os_printf ("%s ", msg);
+		}
+
+		acpi_os_printf ("[%s] (Node %p)", (char *) buffer.pointer, node);
+		ACPI_MEM_FREE (buffer.pointer);
+	}
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_valid_root_prefix
+ *
+ * PARAMETERS:  Prefix          - Character to be checked
+ *
+ * RETURN:      TRUE if a valid prefix
+ *
+ * DESCRIPTION: Check if a character is a valid ACPI Root prefix
+ *
+ ******************************************************************************/
+
+u8
+acpi_ns_valid_root_prefix (
+	char                            prefix)
+{
+
+	return ((u8) (prefix == '\\'));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_valid_path_separator
+ *
+ * PARAMETERS:  Sep              - Character to be checked
+ *
+ * RETURN:      TRUE if a valid path separator
+ *
+ * DESCRIPTION: Check if a character is a valid ACPI path separator
+ *
+ ******************************************************************************/
+
+u8
+acpi_ns_valid_path_separator (
+	char                            sep)
+{
+
+	return ((u8) (sep == '.'));
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_type
+ *
+ * PARAMETERS:  Handle              - Parent Node to be examined
+ *
+ * RETURN:      Type field from Node whose handle is passed
+ *
+ ******************************************************************************/
+
+acpi_object_type
+acpi_ns_get_type (
+	struct acpi_namespace_node      *node)
+{
+	ACPI_FUNCTION_TRACE ("ns_get_type");
+
+
+	if (!node) {
+		ACPI_REPORT_WARNING (("ns_get_type: Null Node input pointer\n"));
+		return_VALUE (ACPI_TYPE_ANY);
+	}
+
+	return_VALUE ((acpi_object_type) node->type);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_local
+ *
+ * PARAMETERS:  Type            - A namespace object type
+ *
+ * RETURN:      LOCAL if names must be found locally in objects of the
+ *              passed type, 0 if enclosing scopes should be searched
+ *
+ ******************************************************************************/
+
+u32
+acpi_ns_local (
+	acpi_object_type                type)
+{
+	ACPI_FUNCTION_TRACE ("ns_local");
+
+
+	if (!acpi_ut_valid_object_type (type)) {
+		/* Type code out of range  */
+
+		ACPI_REPORT_WARNING (("ns_local: Invalid Object Type\n"));
+		return_VALUE (ACPI_NS_NORMAL);
+	}
+
+	return_VALUE ((u32) acpi_gbl_ns_properties[type] & ACPI_NS_LOCAL);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_internal_name_length
+ *
+ * PARAMETERS:  Info            - Info struct initialized with the
+ *                                external name pointer.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Calculate the length of the internal (AML) namestring
+ *              corresponding to the external (ASL) namestring.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_get_internal_name_length (
+	struct acpi_namestring_info     *info)
+{
+	char                            *next_external_char;
+	u32                             i;
+
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	next_external_char = info->external_name;
+	info->num_carats = 0;
+	info->num_segments = 0;
+	info->fully_qualified = FALSE;
+
+	/*
+	 * For the internal name, the required length is 4 bytes per segment, plus
+	 * 1 each for root_prefix, multi_name_prefix_op, segment count, trailing null
+	 * (which is not really needed, but no there's harm in putting it there)
+	 *
+	 * strlen() + 1 covers the first name_seg, which has no path separator
+	 */
+	if (acpi_ns_valid_root_prefix (next_external_char[0])) {
+		info->fully_qualified = TRUE;
+		next_external_char++;
+	}
+	else {
+		/*
+		 * Handle Carat prefixes
+		 */
+		while (*next_external_char == '^') {
+			info->num_carats++;
+			next_external_char++;
+		}
+	}
+
+	/*
+	 * Determine the number of ACPI name "segments" by counting the number of
+	 * path separators within the string. Start with one segment since the
+	 * segment count is [(# separators) + 1], and zero separators is ok.
+	 */
+	if (*next_external_char) {
+		info->num_segments = 1;
+		for (i = 0; next_external_char[i]; i++) {
+			if (acpi_ns_valid_path_separator (next_external_char[i])) {
+				info->num_segments++;
+			}
+		}
+	}
+
+	info->length = (ACPI_NAME_SIZE * info->num_segments) +
+			  4 + info->num_carats;
+
+	info->next_external_char = next_external_char;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_build_internal_name
+ *
+ * PARAMETERS:  Info            - Info struct fully initialized
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Construct the internal (AML) namestring
+ *              corresponding to the external (ASL) namestring.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_build_internal_name (
+	struct acpi_namestring_info     *info)
+{
+	u32                             num_segments = info->num_segments;
+	char                            *internal_name = info->internal_name;
+	char                            *external_name = info->next_external_char;
+	char                            *result = NULL;
+	acpi_native_uint                i;
+
+
+	ACPI_FUNCTION_TRACE ("ns_build_internal_name");
+
+
+	/* Setup the correct prefixes, counts, and pointers */
+
+	if (info->fully_qualified) {
+		internal_name[0] = '\\';
+
+		if (num_segments <= 1) {
+			result = &internal_name[1];
+		}
+		else if (num_segments == 2) {
+			internal_name[1] = AML_DUAL_NAME_PREFIX;
+			result = &internal_name[2];
+		}
+		else {
+			internal_name[1] = AML_MULTI_NAME_PREFIX_OP;
+			internal_name[2] = (char) num_segments;
+			result = &internal_name[3];
+		}
+	}
+	else {
+		/*
+		 * Not fully qualified.
+		 * Handle Carats first, then append the name segments
+		 */
+		i = 0;
+		if (info->num_carats) {
+			for (i = 0; i < info->num_carats; i++) {
+				internal_name[i] = '^';
+			}
+		}
+
+		if (num_segments <= 1) {
+			result = &internal_name[i];
+		}
+		else if (num_segments == 2) {
+			internal_name[i] = AML_DUAL_NAME_PREFIX;
+			result = &internal_name[(acpi_native_uint) (i+1)];
+		}
+		else {
+			internal_name[i] = AML_MULTI_NAME_PREFIX_OP;
+			internal_name[(acpi_native_uint) (i+1)] = (char) num_segments;
+			result = &internal_name[(acpi_native_uint) (i+2)];
+		}
+	}
+
+	/* Build the name (minus path separators) */
+
+	for (; num_segments; num_segments--) {
+		for (i = 0; i < ACPI_NAME_SIZE; i++) {
+			if (acpi_ns_valid_path_separator (*external_name) ||
+			   (*external_name == 0)) {
+				/* Pad the segment with underscore(s) if segment is short */
+
+				result[i] = '_';
+			}
+			else {
+				/* Convert the character to uppercase and save it */
+
+				result[i] = (char) ACPI_TOUPPER ((int) *external_name);
+				external_name++;
+			}
+		}
+
+		/* Now we must have a path separator, or the pathname is bad */
+
+		if (!acpi_ns_valid_path_separator (*external_name) &&
+			(*external_name != 0)) {
+			return_ACPI_STATUS (AE_BAD_PARAMETER);
+		}
+
+		/* Move on the next segment */
+
+		external_name++;
+		result += ACPI_NAME_SIZE;
+	}
+
+	/* Terminate the string */
+
+	*result = 0;
+
+	if (info->fully_qualified) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Returning [%p] (abs) \"\\%s\"\n",
+			internal_name, internal_name));
+	}
+	else {
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "Returning [%p] (rel) \"%s\"\n",
+			internal_name, internal_name));
+	}
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_internalize_name
+ *
+ * PARAMETERS:  *external_name          - External representation of name
+ *              **Converted Name        - Where to return the resulting
+ *                                        internal represention of the name
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert an external representation (e.g. "\_PR_.CPU0")
+ *              to internal form (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
+ *
+ *******************************************************************************/
+
+acpi_status
+acpi_ns_internalize_name (
+	char                            *external_name,
+	char                            **converted_name)
+{
+	char                            *internal_name;
+	struct acpi_namestring_info     info;
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("ns_internalize_name");
+
+
+	if ((!external_name)     ||
+		(*external_name == 0) ||
+		(!converted_name)) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/* Get the length of the new internal name */
+
+	info.external_name = external_name;
+	acpi_ns_get_internal_name_length (&info);
+
+	/* We need a segment to store the internal  name */
+
+	internal_name = ACPI_MEM_CALLOCATE (info.length);
+	if (!internal_name) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	/* Build the name */
+
+	info.internal_name = internal_name;
+	status = acpi_ns_build_internal_name (&info);
+	if (ACPI_FAILURE (status)) {
+		ACPI_MEM_FREE (internal_name);
+		return_ACPI_STATUS (status);
+	}
+
+	*converted_name = internal_name;
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_externalize_name
+ *
+ * PARAMETERS:  *internal_name         - Internal representation of name
+ *              **converted_name       - Where to return the resulting
+ *                                       external representation of name
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Convert internal name (e.g. 5c 2f 02 5f 50 52 5f 43 50 55 30)
+ *              to its external form (e.g. "\_PR_.CPU0")
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_externalize_name (
+	u32                             internal_name_length,
+	char                            *internal_name,
+	u32                             *converted_name_length,
+	char                            **converted_name)
+{
+	acpi_native_uint                names_index = 0;
+	acpi_native_uint                num_segments = 0;
+	acpi_native_uint                required_length;
+	acpi_native_uint                prefix_length = 0;
+	acpi_native_uint                i = 0;
+	acpi_native_uint                j = 0;
+
+
+	ACPI_FUNCTION_TRACE ("ns_externalize_name");
+
+
+	if (!internal_name_length   ||
+		!internal_name          ||
+		!converted_name) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * Check for a prefix (one '\' | one or more '^').
+	 */
+	switch (internal_name[0]) {
+	case '\\':
+		prefix_length = 1;
+		break;
+
+	case '^':
+		for (i = 0; i < internal_name_length; i++) {
+			if (internal_name[i] == '^') {
+				prefix_length = i + 1;
+			}
+			else {
+				break;
+			}
+		}
+
+		if (i == internal_name_length) {
+			prefix_length = i;
+		}
+
+		break;
+
+	default:
+		break;
+	}
+
+	/*
+	 * Check for object names.  Note that there could be 0-255 of these
+	 * 4-byte elements.
+	 */
+	if (prefix_length < internal_name_length) {
+		switch (internal_name[prefix_length]) {
+		case AML_MULTI_NAME_PREFIX_OP:
+
+			/* <count> 4-byte names */
+
+			names_index = prefix_length + 2;
+			num_segments = (acpi_native_uint) (u8)
+					   internal_name[(acpi_native_uint) (prefix_length + 1)];
+			break;
+
+		case AML_DUAL_NAME_PREFIX:
+
+			/* Two 4-byte names */
+
+			names_index = prefix_length + 1;
+			num_segments = 2;
+			break;
+
+		case 0:
+
+			/* null_name */
+
+			names_index = 0;
+			num_segments = 0;
+			break;
+
+		default:
+
+			/* one 4-byte name */
+
+			names_index = prefix_length;
+			num_segments = 1;
+			break;
+		}
+	}
+
+	/*
+	 * Calculate the length of converted_name, which equals the length
+	 * of the prefix, length of all object names, length of any required
+	 * punctuation ('.') between object names, plus the NULL terminator.
+	 */
+	required_length = prefix_length + (4 * num_segments) +
+			   ((num_segments > 0) ? (num_segments - 1) : 0) + 1;
+
+	/*
+	 * Check to see if we're still in bounds.  If not, there's a problem
+	 * with internal_name (invalid format).
+	 */
+	if (required_length > internal_name_length) {
+		ACPI_REPORT_ERROR (("ns_externalize_name: Invalid internal name\n"));
+		return_ACPI_STATUS (AE_BAD_PATHNAME);
+	}
+
+	/*
+	 * Build converted_name
+	 */
+	*converted_name = ACPI_MEM_CALLOCATE (required_length);
+	if (!(*converted_name)) {
+		return_ACPI_STATUS (AE_NO_MEMORY);
+	}
+
+	j = 0;
+
+	for (i = 0; i < prefix_length; i++) {
+		(*converted_name)[j++] = internal_name[i];
+	}
+
+	if (num_segments > 0) {
+		for (i = 0; i < num_segments; i++) {
+			if (i > 0) {
+				(*converted_name)[j++] = '.';
+			}
+
+			(*converted_name)[j++] = internal_name[names_index++];
+			(*converted_name)[j++] = internal_name[names_index++];
+			(*converted_name)[j++] = internal_name[names_index++];
+			(*converted_name)[j++] = internal_name[names_index++];
+		}
+	}
+
+	if (converted_name_length) {
+		*converted_name_length = (u32) required_length;
+	}
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_map_handle_to_node
+ *
+ * PARAMETERS:  Handle          - Handle to be converted to an Node
+ *
+ * RETURN:      A Name table entry pointer
+ *
+ * DESCRIPTION: Convert a namespace handle to a real Node
+ *
+ * Note: Real integer handles allow for more verification
+ *       and keep all pointers within this subsystem.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *
+acpi_ns_map_handle_to_node (
+	acpi_handle                     handle)
+{
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	/*
+	 * Simple implementation.
+	 */
+	if (!handle) {
+		return (NULL);
+	}
+
+	if (handle == ACPI_ROOT_OBJECT) {
+		return (acpi_gbl_root_node);
+	}
+
+	/* We can at least attempt to verify the handle */
+
+	if (ACPI_GET_DESCRIPTOR_TYPE (handle) != ACPI_DESC_TYPE_NAMED) {
+		return (NULL);
+	}
+
+	return ((struct acpi_namespace_node *) handle);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_convert_entry_to_handle
+ *
+ * PARAMETERS:  Node          - Node to be converted to a Handle
+ *
+ * RETURN:      A user handle
+ *
+ * DESCRIPTION: Convert a real Node to a namespace handle
+ *
+ ******************************************************************************/
+
+acpi_handle
+acpi_ns_convert_entry_to_handle (
+	struct acpi_namespace_node          *node)
+{
+
+
+	/*
+	 * Simple implementation for now;
+	 */
+	return ((acpi_handle) node);
+
+
+/* ---------------------------------------------------
+
+	if (!Node)
+	{
+		return (NULL);
+	}
+
+	if (Node == acpi_gbl_root_node)
+	{
+		return (ACPI_ROOT_OBJECT);
+	}
+
+
+	return ((acpi_handle) Node);
+------------------------------------------------------*/
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_terminate
+ *
+ * PARAMETERS:  none
+ *
+ * RETURN:      none
+ *
+ * DESCRIPTION: free memory allocated for table storage.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_terminate (void)
+{
+	union acpi_operand_object       *obj_desc;
+
+
+	ACPI_FUNCTION_TRACE ("ns_terminate");
+
+
+	/*
+	 * 1) Free the entire namespace -- all nodes and objects
+	 *
+	 * Delete all object descriptors attached to namepsace nodes
+	 */
+	acpi_ns_delete_namespace_subtree (acpi_gbl_root_node);
+
+	/* Detach any objects attached to the root */
+
+	obj_desc = acpi_ns_get_attached_object (acpi_gbl_root_node);
+	if (obj_desc) {
+		acpi_ns_detach_object (acpi_gbl_root_node);
+	}
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "Namespace freed\n"));
+
+	/*
+	 * 2) Now we can delete the ACPI tables
+	 */
+	acpi_tb_delete_all_tables ();
+	ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "ACPI Tables freed\n"));
+
+	return_VOID;
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_opens_scope
+ *
+ * PARAMETERS:  Type        - A valid namespace type
+ *
+ * RETURN:      NEWSCOPE if the passed type "opens a name scope" according
+ *              to the ACPI specification, else 0
+ *
+ ******************************************************************************/
+
+u32
+acpi_ns_opens_scope (
+	acpi_object_type                type)
+{
+	ACPI_FUNCTION_TRACE_STR ("ns_opens_scope", acpi_ut_get_type_name (type));
+
+
+	if (!acpi_ut_valid_object_type (type)) {
+		/* type code out of range  */
+
+		ACPI_REPORT_WARNING (("ns_opens_scope: Invalid Object Type %X\n", type));
+		return_VALUE (ACPI_NS_NORMAL);
+	}
+
+	return_VALUE (((u32) acpi_gbl_ns_properties[type]) & ACPI_NS_NEWSCOPE);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_node_by_path
+ *
+ * PARAMETERS:  *Pathname   - Name to be found, in external (ASL) format. The
+ *                            \ (backslash) and ^ (carat) prefixes, and the
+ *                            . (period) to separate segments are supported.
+ *              start_node  - Root of subtree to be searched, or NS_ALL for the
+ *                            root of the name space.  If Name is fully
+ *                            qualified (first s8 is '\'), the passed value
+ *                            of Scope will not be accessed.
+ *              Flags       - Used to indicate whether to perform upsearch or
+ *                            not.
+ *              return_node - Where the Node is returned
+ *
+ * DESCRIPTION: Look up a name relative to a given scope and return the
+ *              corresponding Node.  NOTE: Scope can be null.
+ *
+ * MUTEX:       Locks namespace
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_get_node_by_path (
+	char                            *pathname,
+	struct acpi_namespace_node      *start_node,
+	u32                             flags,
+	struct acpi_namespace_node      **return_node)
+{
+	union acpi_generic_state        scope_info;
+	acpi_status                     status;
+	char                            *internal_path = NULL;
+
+
+	ACPI_FUNCTION_TRACE_PTR ("ns_get_node_by_path", pathname);
+
+
+	if (pathname) {
+		/* Convert path to internal representation */
+
+		status = acpi_ns_internalize_name (pathname, &internal_path);
+		if (ACPI_FAILURE (status)) {
+			return_ACPI_STATUS (status);
+		}
+	}
+
+	/* Must lock namespace during lookup */
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	/* Setup lookup scope (search starting point) */
+
+	scope_info.scope.node = start_node;
+
+	/* Lookup the name in the namespace */
+
+	status = acpi_ns_lookup (&scope_info, internal_path,
+			 ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE,
+			 (flags | ACPI_NS_DONT_OPEN_SCOPE),
+			 NULL, return_node);
+	if (ACPI_FAILURE (status)) {
+		ACPI_DEBUG_PRINT ((ACPI_DB_INFO, "%s, %s\n",
+				internal_path, acpi_format_exception (status)));
+	}
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+
+cleanup:
+	/* Cleanup */
+	if (internal_path) {
+		ACPI_MEM_FREE (internal_path);
+	}
+	return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_find_parent_name
+ *
+ * PARAMETERS:  *child_node            - Named Obj whose name is to be found
+ *
+ * RETURN:      The ACPI name
+ *
+ * DESCRIPTION: Search for the given obj in its parent scope and return the
+ *              name segment, or "????" if the parent name can't be found
+ *              (which "should not happen").
+ *
+ ******************************************************************************/
+#ifdef ACPI_FUTURE_USAGE
+acpi_name
+acpi_ns_find_parent_name (
+	struct acpi_namespace_node      *child_node)
+{
+	struct acpi_namespace_node      *parent_node;
+
+
+	ACPI_FUNCTION_TRACE ("ns_find_parent_name");
+
+
+	if (child_node) {
+		/* Valid entry.  Get the parent Node */
+
+		parent_node = acpi_ns_get_parent_node (child_node);
+		if (parent_node) {
+			ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+				"Parent of %p [%4.4s] is %p [%4.4s]\n",
+				child_node, acpi_ut_get_node_name (child_node),
+				parent_node, acpi_ut_get_node_name (parent_node)));
+
+			if (parent_node->name.integer) {
+				return_VALUE ((acpi_name) parent_node->name.integer);
+			}
+		}
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+			"Unable to find parent of %p (%4.4s)\n",
+			child_node, acpi_ut_get_node_name (child_node)));
+	}
+
+	return_VALUE (ACPI_UNKNOWN_NAME);
+}
+#endif
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_parent_node
+ *
+ * PARAMETERS:  Node       - Current table entry
+ *
+ * RETURN:      Parent entry of the given entry
+ *
+ * DESCRIPTION: Obtain the parent entry for a given entry in the namespace.
+ *
+ ******************************************************************************/
+
+
+struct acpi_namespace_node *
+acpi_ns_get_parent_node (
+	struct acpi_namespace_node      *node)
+{
+	ACPI_FUNCTION_ENTRY ();
+
+
+	if (!node) {
+		return (NULL);
+	}
+
+	/*
+	 * Walk to the end of this peer list. The last entry is marked with a flag
+	 * and the peer pointer is really a pointer back to the parent. This saves
+	 * putting a parent back pointer in each and every named object!
+	 */
+	while (!(node->flags & ANOBJ_END_OF_PEER_LIST)) {
+		node = node->peer;
+	}
+
+
+	return (node->peer);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_next_valid_node
+ *
+ * PARAMETERS:  Node       - Current table entry
+ *
+ * RETURN:      Next valid Node in the linked node list. NULL if no more valid
+ *              nodes.
+ *
+ * DESCRIPTION: Find the next valid node within a name table.
+ *              Useful for implementing NULL-end-of-list loops.
+ *
+ ******************************************************************************/
+
+
+struct acpi_namespace_node *
+acpi_ns_get_next_valid_node (
+	struct acpi_namespace_node      *node)
+{
+
+	/* If we are at the end of this peer list, return NULL */
+
+	if (node->flags & ANOBJ_END_OF_PEER_LIST) {
+		return NULL;
+	}
+
+	/* Otherwise just return the next peer */
+
+	return (node->peer);
+}
+
+
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
new file mode 100644
index 00000000000..4de2444df30
--- /dev/null
+++ b/drivers/acpi/namespace/nswalk.c
@@ -0,0 +1,289 @@
+/******************************************************************************
+ *
+ * Module Name: nswalk - Functions for walking the ACPI namespace
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nswalk")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_next_node
+ *
+ * PARAMETERS:  Type                - Type of node to be searched for
+ *              parent_node         - Parent node whose children we are
+ *                                     getting
+ *              child_node          - Previous child that was found.
+ *                                    The NEXT child will be returned
+ *
+ * RETURN:      struct acpi_namespace_node - Pointer to the NEXT child or NULL if
+ *                                    none is found.
+ *
+ * DESCRIPTION: Return the next peer node within the namespace.  If Handle
+ *              is valid, Scope is ignored.  Otherwise, the first node
+ *              within Scope is returned.
+ *
+ ******************************************************************************/
+
+struct acpi_namespace_node *
+acpi_ns_get_next_node (
+	acpi_object_type                type,
+	struct acpi_namespace_node      *parent_node,
+	struct acpi_namespace_node      *child_node)
+{
+	struct acpi_namespace_node      *next_node = NULL;
+
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	if (!child_node) {
+		/* It's really the parent's _scope_ that we want */
+
+		if (parent_node->child) {
+			next_node = parent_node->child;
+		}
+	}
+
+	else {
+		/* Start search at the NEXT node */
+
+		next_node = acpi_ns_get_next_valid_node (child_node);
+	}
+
+	/* If any type is OK, we are done */
+
+	if (type == ACPI_TYPE_ANY) {
+		/* next_node is NULL if we are at the end-of-list */
+
+		return (next_node);
+	}
+
+	/* Must search for the node -- but within this scope only */
+
+	while (next_node) {
+		/* If type matches, we are done */
+
+		if (next_node->type == type) {
+			return (next_node);
+		}
+
+		/* Otherwise, move on to the next node */
+
+		next_node = acpi_ns_get_next_valid_node (next_node);
+	}
+
+	/* Not found */
+
+	return (NULL);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_walk_namespace
+ *
+ * PARAMETERS:  Type                - acpi_object_type to search for
+ *              start_node          - Handle in namespace where search begins
+ *              max_depth           - Depth to which search is to reach
+ *              unlock_before_callback- Whether to unlock the NS before invoking
+ *                                    the callback routine
+ *              user_function       - Called when an object of "Type" is found
+ *              Context             - Passed to user function
+ *              return_value        - from the user_function if terminated early.
+ *                                    Otherwise, returns NULL.
+ * RETURNS:     Status
+ *
+ * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
+ *              starting (and ending) at the node specified by start_handle.
+ *              The user_function is called whenever a node that matches
+ *              the type parameter is found.  If the user function returns
+ *              a non-zero value, the search is terminated immediately and this
+ *              value is returned to the caller.
+ *
+ *              The point of this procedure is to provide a generic namespace
+ *              walk routine that can be called from multiple places to
+ *              provide multiple services;  the User Function can be tailored
+ *              to each task, whether it is a print function, a compare
+ *              function, etc.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_ns_walk_namespace (
+	acpi_object_type                type,
+	acpi_handle                     start_node,
+	u32                             max_depth,
+	u8                              unlock_before_callback,
+	acpi_walk_callback              user_function,
+	void                            *context,
+	void                            **return_value)
+{
+	acpi_status                     status;
+	acpi_status                     mutex_status;
+	struct acpi_namespace_node      *child_node;
+	struct acpi_namespace_node      *parent_node;
+	acpi_object_type                child_type;
+	u32                             level;
+
+
+	ACPI_FUNCTION_TRACE ("ns_walk_namespace");
+
+
+	/* Special case for the namespace Root Node */
+
+	if (start_node == ACPI_ROOT_OBJECT) {
+		start_node = acpi_gbl_root_node;
+	}
+
+	/* Null child means "get first node" */
+
+	parent_node = start_node;
+	child_node  = NULL;
+	child_type  = ACPI_TYPE_ANY;
+	level       = 1;
+
+	/*
+	 * Traverse the tree of nodes until we bubble back up to where we
+	 * started. When Level is zero, the loop is done because we have
+	 * bubbled up to (and passed) the original parent handle (start_entry)
+	 */
+	while (level > 0) {
+		/* Get the next node in this scope.  Null if not found */
+
+		status = AE_OK;
+		child_node = acpi_ns_get_next_node (ACPI_TYPE_ANY, parent_node, child_node);
+		if (child_node) {
+			/*
+			 * Found node, Get the type if we are not
+			 * searching for ANY
+			 */
+			if (type != ACPI_TYPE_ANY) {
+				child_type = child_node->type;
+			}
+
+			if (child_type == type) {
+				/*
+				 * Found a matching node, invoke the user
+				 * callback function
+				 */
+				if (unlock_before_callback) {
+					mutex_status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+					if (ACPI_FAILURE (mutex_status)) {
+						return_ACPI_STATUS (mutex_status);
+					}
+				}
+
+				status = user_function (child_node, level,
+						 context, return_value);
+
+				if (unlock_before_callback) {
+					mutex_status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+					if (ACPI_FAILURE (mutex_status)) {
+						return_ACPI_STATUS (mutex_status);
+					}
+				}
+
+				switch (status) {
+				case AE_OK:
+				case AE_CTRL_DEPTH:
+
+					/* Just keep going */
+					break;
+
+				case AE_CTRL_TERMINATE:
+
+					/* Exit now, with OK status */
+
+					return_ACPI_STATUS (AE_OK);
+
+				default:
+
+					/* All others are valid exceptions */
+
+					return_ACPI_STATUS (status);
+				}
+			}
+
+			/*
+			 * Depth first search:
+			 * Attempt to go down another level in the namespace
+			 * if we are allowed to.  Don't go any further if we
+			 * have reached the caller specified maximum depth
+			 * or if the user function has specified that the
+			 * maximum depth has been reached.
+			 */
+			if ((level < max_depth) && (status != AE_CTRL_DEPTH)) {
+				if (acpi_ns_get_next_node (ACPI_TYPE_ANY, child_node, NULL)) {
+					/*
+					 * There is at least one child of this
+					 * node, visit the onde
+					 */
+					level++;
+					parent_node = child_node;
+					child_node = NULL;
+				}
+			}
+		}
+		else {
+			/*
+			 * No more children of this node (acpi_ns_get_next_node
+			 * failed), go back upwards in the namespace tree to
+			 * the node's parent.
+			 */
+			level--;
+			child_node = parent_node;
+			parent_node = acpi_ns_get_parent_node (parent_node);
+		}
+	}
+
+	/* Complete walk, not terminated by user function */
+
+	return_ACPI_STATUS (AE_OK);
+}
+
+
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
new file mode 100644
index 00000000000..1dc995586cb
--- /dev/null
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -0,0 +1,764 @@
+/*******************************************************************************
+ *
+ * Module Name: nsxfeval - Public interfaces to the ACPI subsystem
+ *                         ACPI Object evaluation interfaces
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <linux/module.h>
+
+#include <acpi/acpi.h>
+#include <acpi/acnamesp.h>
+#include <acpi/acinterp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsxfeval")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_evaluate_object_typed
+ *
+ * PARAMETERS:  Handle              - Object handle (optional)
+ *              *Pathname           - Object pathname (optional)
+ *              **external_params   - List of parameters to pass to method,
+ *                                    terminated by NULL.  May be NULL
+ *                                    if no parameters are being passed.
+ *              *return_buffer      - Where to put method's return value (if
+ *                                    any).  If NULL, no value is returned.
+ *              return_type         - Expected type of return object
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find and evaluate the given object, passing the given
+ *              parameters if necessary.  One of "Handle" or "Pathname" must
+ *              be valid (non-null)
+ *
+ ******************************************************************************/
+#ifdef ACPI_FUTURE_USAGE
+acpi_status
+acpi_evaluate_object_typed (
+	acpi_handle                     handle,
+	acpi_string                     pathname,
+	struct acpi_object_list         *external_params,
+	struct acpi_buffer              *return_buffer,
+	acpi_object_type                return_type)
+{
+	acpi_status                     status;
+	u8                              must_free = FALSE;
+
+
+	ACPI_FUNCTION_TRACE ("acpi_evaluate_object_typed");
+
+
+	/* Return buffer must be valid */
+
+	if (!return_buffer) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	if (return_buffer->length == ACPI_ALLOCATE_BUFFER) {
+		must_free = TRUE;
+	}
+
+	/* Evaluate the object */
+
+	status = acpi_evaluate_object (handle, pathname, external_params, return_buffer);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	/* Type ANY means "don't care" */
+
+	if (return_type == ACPI_TYPE_ANY) {
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	if (return_buffer->length == 0) {
+		/* Error because caller specifically asked for a return value */
+
+		ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+			"No return value\n"));
+
+		return_ACPI_STATUS (AE_NULL_OBJECT);
+	}
+
+	/* Examine the object type returned from evaluate_object */
+
+	if (((union acpi_object *) return_buffer->pointer)->type == return_type) {
+		return_ACPI_STATUS (AE_OK);
+	}
+
+	/* Return object type does not match requested type */
+
+	ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+		"Incorrect return type [%s] requested [%s]\n",
+		acpi_ut_get_type_name (((union acpi_object *) return_buffer->pointer)->type),
+		acpi_ut_get_type_name (return_type)));
+
+	if (must_free) {
+		/* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
+
+		acpi_os_free (return_buffer->pointer);
+		return_buffer->pointer = NULL;
+	}
+
+	return_buffer->length = 0;
+	return_ACPI_STATUS (AE_TYPE);
+}
+#endif  /*  ACPI_FUTURE_USAGE  */
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_evaluate_object
+ *
+ * PARAMETERS:  Handle              - Object handle (optional)
+ *              Pathname            - Object pathname (optional)
+ *              external_params     - List of parameters to pass to method,
+ *                                    terminated by NULL.  May be NULL
+ *                                    if no parameters are being passed.
+ *              return_buffer       - Where to put method's return value (if
+ *                                    any).  If NULL, no value is returned.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Find and evaluate the given object, passing the given
+ *              parameters if necessary.  One of "Handle" or "Pathname" must
+ *              be valid (non-null)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_evaluate_object (
+	acpi_handle                     handle,
+	acpi_string                     pathname,
+	struct acpi_object_list         *external_params,
+	struct acpi_buffer              *return_buffer)
+{
+	acpi_status                     status;
+	acpi_status                     status2;
+	struct acpi_parameter_info      info;
+	acpi_size                       buffer_space_needed;
+	u32                             i;
+
+
+	ACPI_FUNCTION_TRACE ("acpi_evaluate_object");
+
+
+	info.node = handle;
+	info.parameters = NULL;
+	info.return_object = NULL;
+	info.parameter_type = ACPI_PARAM_ARGS;
+
+	/*
+	 * If there are parameters to be passed to the object
+	 * (which must be a control method), the external objects
+	 * must be converted to internal objects
+	 */
+	if (external_params && external_params->count) {
+		/*
+		 * Allocate a new parameter block for the internal objects
+		 * Add 1 to count to allow for null terminated internal list
+		 */
+		info.parameters = ACPI_MEM_CALLOCATE (
+				 ((acpi_size) external_params->count + 1) *
+				 sizeof (void *));
+		if (!info.parameters) {
+			return_ACPI_STATUS (AE_NO_MEMORY);
+		}
+
+		/*
+		 * Convert each external object in the list to an
+		 * internal object
+		 */
+		for (i = 0; i < external_params->count; i++) {
+			status = acpi_ut_copy_eobject_to_iobject (&external_params->pointer[i],
+					  &info.parameters[i]);
+			if (ACPI_FAILURE (status)) {
+				acpi_ut_delete_internal_object_list (info.parameters);
+				return_ACPI_STATUS (status);
+			}
+		}
+		info.parameters[external_params->count] = NULL;
+	}
+
+
+	/*
+	 * Three major cases:
+	 * 1) Fully qualified pathname
+	 * 2) No handle, not fully qualified pathname (error)
+	 * 3) Valid handle
+	 */
+	if ((pathname) &&
+		(acpi_ns_valid_root_prefix (pathname[0]))) {
+		/*
+		 *  The path is fully qualified, just evaluate by name
+		 */
+		status = acpi_ns_evaluate_by_name (pathname, &info);
+	}
+	else if (!handle) {
+		/*
+		 * A handle is optional iff a fully qualified pathname
+		 * is specified.  Since we've already handled fully
+		 * qualified names above, this is an error
+		 */
+		if (!pathname) {
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+				"Both Handle and Pathname are NULL\n"));
+		}
+		else {
+			ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+				"Handle is NULL and Pathname is relative\n"));
+		}
+
+		status = AE_BAD_PARAMETER;
+	}
+	else {
+		/*
+		 * We get here if we have a handle -- and if we have a
+		 * pathname it is relative.  The handle will be validated
+		 * in the lower procedures
+		 */
+		if (!pathname) {
+			/*
+			 * The null pathname case means the handle is for
+			 * the actual object to be evaluated
+			 */
+			status = acpi_ns_evaluate_by_handle (&info);
+		}
+		else {
+		   /*
+			* Both a Handle and a relative Pathname
+			*/
+			status = acpi_ns_evaluate_relative (pathname, &info);
+		}
+	}
+
+
+	/*
+	 * If we are expecting a return value, and all went well above,
+	 * copy the return value to an external object.
+	 */
+	if (return_buffer) {
+		if (!info.return_object) {
+			return_buffer->length = 0;
+		}
+		else {
+			if (ACPI_GET_DESCRIPTOR_TYPE (info.return_object) == ACPI_DESC_TYPE_NAMED) {
+				/*
+				 * If we received a NS Node as a return object, this means that
+				 * the object we are evaluating has nothing interesting to
+				 * return (such as a mutex, etc.)  We return an error because
+				 * these types are essentially unsupported by this interface.
+				 * We don't check up front because this makes it easier to add
+				 * support for various types at a later date if necessary.
+				 */
+				status = AE_TYPE;
+				info.return_object = NULL;  /* No need to delete a NS Node */
+				return_buffer->length = 0;
+			}
+
+			if (ACPI_SUCCESS (status)) {
+				/*
+				 * Find out how large a buffer is needed
+				 * to contain the returned object
+				 */
+				status = acpi_ut_get_object_size (info.return_object,
+						   &buffer_space_needed);
+				if (ACPI_SUCCESS (status)) {
+					/* Validate/Allocate/Clear caller buffer */
+
+					status = acpi_ut_initialize_buffer (return_buffer, buffer_space_needed);
+					if (ACPI_FAILURE (status)) {
+						/*
+						 * Caller's buffer is too small or a new one can't be allocated
+						 */
+						ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+							"Needed buffer size %X, %s\n",
+							(u32) buffer_space_needed,
+							acpi_format_exception (status)));
+					}
+					else {
+						/*
+						 *  We have enough space for the object, build it
+						 */
+						status = acpi_ut_copy_iobject_to_eobject (info.return_object,
+								  return_buffer);
+					}
+				}
+			}
+		}
+	}
+
+	if (info.return_object) {
+		/*
+		 * Delete the internal return object.  NOTE: Interpreter
+		 * must be locked to avoid race condition.
+		 */
+		status2 = acpi_ex_enter_interpreter ();
+		if (ACPI_SUCCESS (status2)) {
+			/*
+			 * Delete the internal return object. (Or at least
+			 * decrement the reference count by one)
+			 */
+			acpi_ut_remove_reference (info.return_object);
+			acpi_ex_exit_interpreter ();
+		}
+	}
+
+	/*
+	 * Free the input parameter list (if we created one),
+	 */
+	if (info.parameters) {
+		/* Free the allocated parameter block */
+
+		acpi_ut_delete_internal_object_list (info.parameters);
+	}
+
+	return_ACPI_STATUS (status);
+}
+EXPORT_SYMBOL(acpi_evaluate_object);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_walk_namespace
+ *
+ * PARAMETERS:  Type                - acpi_object_type to search for
+ *              start_object        - Handle in namespace where search begins
+ *              max_depth           - Depth to which search is to reach
+ *              user_function       - Called when an object of "Type" is found
+ *              Context             - Passed to user function
+ *              return_value        - Location where return value of
+ *                                    user_function is put if terminated early
+ *
+ * RETURNS      Return value from the user_function if terminated early.
+ *              Otherwise, returns NULL.
+ *
+ * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
+ *              starting (and ending) at the object specified by start_handle.
+ *              The user_function is called whenever an object that matches
+ *              the type parameter is found.  If the user function returns
+ *              a non-zero value, the search is terminated immediately and this
+ *              value is returned to the caller.
+ *
+ *              The point of this procedure is to provide a generic namespace
+ *              walk routine that can be called from multiple places to
+ *              provide multiple services;  the User Function can be tailored
+ *              to each task, whether it is a print function, a compare
+ *              function, etc.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_walk_namespace (
+	acpi_object_type                type,
+	acpi_handle                     start_object,
+	u32                             max_depth,
+	acpi_walk_callback              user_function,
+	void                            *context,
+	void                            **return_value)
+{
+	acpi_status                     status;
+
+
+	ACPI_FUNCTION_TRACE ("acpi_walk_namespace");
+
+
+	/* Parameter validation */
+
+	if ((type > ACPI_TYPE_EXTERNAL_MAX) ||
+		(!max_depth)                    ||
+		(!user_function)) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * Lock the namespace around the walk.
+	 * The namespace will be unlocked/locked around each call
+	 * to the user function - since this function
+	 * must be allowed to make Acpi calls itself.
+	 */
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	status = acpi_ns_walk_namespace (type, start_object, max_depth, ACPI_NS_WALK_UNLOCK,
+			  user_function, context, return_value);
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return_ACPI_STATUS (status);
+}
+EXPORT_SYMBOL(acpi_walk_namespace);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_get_device_callback
+ *
+ * PARAMETERS:  Callback from acpi_get_device
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Takes callbacks from walk_namespace and filters out all non-
+ *              present devices, or if they specified a HID, it filters based
+ *              on that.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_get_device_callback (
+	acpi_handle                     obj_handle,
+	u32                             nesting_level,
+	void                            *context,
+	void                            **return_value)
+{
+	struct acpi_get_devices_info    *info = context;
+	acpi_status                     status;
+	struct acpi_namespace_node      *node;
+	u32                             flags;
+	struct acpi_device_id           hid;
+	struct acpi_compatible_id_list *cid;
+	acpi_native_uint                i;
+
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	node = acpi_ns_map_handle_to_node (obj_handle);
+	status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	if (!node) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	/* Run _STA to determine if device is present */
+
+	status = acpi_ut_execute_STA (node, &flags);
+	if (ACPI_FAILURE (status)) {
+		return (AE_CTRL_DEPTH);
+	}
+
+	if (!(flags & 0x01)) {
+		/* Don't return at the device or children of the device if not there */
+
+		return (AE_CTRL_DEPTH);
+	}
+
+	/* Filter based on device HID & CID */
+
+	if (info->hid != NULL) {
+		status = acpi_ut_execute_HID (node, &hid);
+		if (status == AE_NOT_FOUND) {
+			return (AE_OK);
+		}
+		else if (ACPI_FAILURE (status)) {
+			return (AE_CTRL_DEPTH);
+		}
+
+		if (ACPI_STRNCMP (hid.value, info->hid, sizeof (hid.value)) != 0) {
+			/* Get the list of Compatible IDs */
+
+			status = acpi_ut_execute_CID (node, &cid);
+			if (status == AE_NOT_FOUND) {
+				return (AE_OK);
+			}
+			else if (ACPI_FAILURE (status)) {
+				return (AE_CTRL_DEPTH);
+			}
+
+			/* Walk the CID list */
+
+			for (i = 0; i < cid->count; i++) {
+				if (ACPI_STRNCMP (cid->id[i].value, info->hid,
+						 sizeof (struct acpi_compatible_id)) != 0) {
+					ACPI_MEM_FREE (cid);
+					return (AE_OK);
+				}
+			}
+			ACPI_MEM_FREE (cid);
+		}
+	}
+
+	status = info->user_function (obj_handle, nesting_level, info->context, return_value);
+	return (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_get_devices
+ *
+ * PARAMETERS:  HID                 - HID to search for. Can be NULL.
+ *              user_function       - Called when a matching object is found
+ *              Context             - Passed to user function
+ *              return_value        - Location where return value of
+ *                                    user_function is put if terminated early
+ *
+ * RETURNS      Return value from the user_function if terminated early.
+ *              Otherwise, returns NULL.
+ *
+ * DESCRIPTION: Performs a modified depth-first walk of the namespace tree,
+ *              starting (and ending) at the object specified by start_handle.
+ *              The user_function is called whenever an object of type
+ *              Device is found.  If the user function returns
+ *              a non-zero value, the search is terminated immediately and this
+ *              value is returned to the caller.
+ *
+ *              This is a wrapper for walk_namespace, but the callback performs
+ *              additional filtering. Please see acpi_get_device_callback.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_devices (
+	char                            *HID,
+	acpi_walk_callback              user_function,
+	void                            *context,
+	void                            **return_value)
+{
+	acpi_status                     status;
+	struct acpi_get_devices_info    info;
+
+
+	ACPI_FUNCTION_TRACE ("acpi_get_devices");
+
+
+	/* Parameter validation */
+
+	if (!user_function) {
+		return_ACPI_STATUS (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * We're going to call their callback from OUR callback, so we need
+	 * to know what it is, and their context parameter.
+	 */
+	info.context      = context;
+	info.user_function = user_function;
+	info.hid          = HID;
+
+	/*
+	 * Lock the namespace around the walk.
+	 * The namespace will be unlocked/locked around each call
+	 * to the user function - since this function
+	 * must be allowed to make Acpi calls itself.
+	 */
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	status = acpi_ns_walk_namespace (ACPI_TYPE_DEVICE,
+			   ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
+			   ACPI_NS_WALK_UNLOCK,
+			   acpi_ns_get_device_callback, &info,
+			   return_value);
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return_ACPI_STATUS (status);
+}
+EXPORT_SYMBOL(acpi_get_devices);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_attach_data
+ *
+ * PARAMETERS:  obj_handle          - Namespace node
+ *              Handler             - Handler for this attachment
+ *              Data                - Pointer to data to be attached
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Attach arbitrary data and handler to a namespace node.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_attach_data (
+	acpi_handle                     obj_handle,
+	acpi_object_handler             handler,
+	void                            *data)
+{
+	struct acpi_namespace_node      *node;
+	acpi_status                     status;
+
+
+	/* Parameter validation */
+
+	if (!obj_handle ||
+		!handler    ||
+		!data) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/* Convert and validate the handle */
+
+	node = acpi_ns_map_handle_to_node (obj_handle);
+	if (!node) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit;
+	}
+
+	status = acpi_ns_attach_data (node, handler, data);
+
+unlock_and_exit:
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_detach_data
+ *
+ * PARAMETERS:  obj_handle          - Namespace node handle
+ *              Handler             - Handler used in call to acpi_attach_data
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Remove data that was previously attached to a node.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_detach_data (
+	acpi_handle                     obj_handle,
+	acpi_object_handler             handler)
+{
+	struct acpi_namespace_node      *node;
+	acpi_status                     status;
+
+
+	/* Parameter validation */
+
+	if (!obj_handle ||
+		!handler) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/* Convert and validate the handle */
+
+	node = acpi_ns_map_handle_to_node (obj_handle);
+	if (!node) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit;
+	}
+
+	status = acpi_ns_detach_data (node, handler);
+
+unlock_and_exit:
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_get_data
+ *
+ * PARAMETERS:  obj_handle          - Namespace node
+ *              Handler             - Handler used in call to attach_data
+ *              Data                - Where the data is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Retrieve data that was previously attached to a namespace node.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_data (
+	acpi_handle                     obj_handle,
+	acpi_object_handler             handler,
+	void                            **data)
+{
+	struct acpi_namespace_node      *node;
+	acpi_status                     status;
+
+
+	/* Parameter validation */
+
+	if (!obj_handle ||
+		!handler    ||
+		!data) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/* Convert and validate the handle */
+
+	node = acpi_ns_map_handle_to_node (obj_handle);
+	if (!node) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit;
+	}
+
+	status = acpi_ns_get_attached_data (node, handler, data);
+
+unlock_and_exit:
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+
+
diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c
new file mode 100644
index 00000000000..f2405efd1b9
--- /dev/null
+++ b/drivers/acpi/namespace/nsxfname.c
@@ -0,0 +1,369 @@
+/******************************************************************************
+ *
+ * Module Name: nsxfname - Public interfaces to the ACPI subsystem
+ *                         ACPI Namespace oriented interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <linux/module.h>
+
+#include <acpi/acpi.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsxfname")
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_get_handle
+ *
+ * PARAMETERS:  Parent          - Object to search under (search scope).
+ *              path_name       - Pointer to an asciiz string containing the
+ *                                  name
+ *              ret_handle      - Where the return handle is placed
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This routine will search for a caller specified name in the
+ *              name space.  The caller can restrict the search region by
+ *              specifying a non NULL parent.  The parent value is itself a
+ *              namespace handle.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_handle (
+	acpi_handle                     parent,
+	acpi_string                     pathname,
+	acpi_handle                     *ret_handle)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node = NULL;
+	struct acpi_namespace_node      *prefix_node = NULL;
+
+
+	ACPI_FUNCTION_ENTRY ();
+
+
+	/* Parameter Validation */
+
+	if (!ret_handle || !pathname) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	/* Convert a parent handle to a prefix node */
+
+	if (parent) {
+		status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+		if (ACPI_FAILURE (status)) {
+			return (status);
+		}
+
+		prefix_node = acpi_ns_map_handle_to_node (parent);
+		if (!prefix_node) {
+			(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+			return (AE_BAD_PARAMETER);
+		}
+
+		status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+		if (ACPI_FAILURE (status)) {
+			return (status);
+		}
+	}
+
+	/* Special case for root, since we can't search for it */
+
+	if (ACPI_STRCMP (pathname, ACPI_NS_ROOT_PATH) == 0) {
+		*ret_handle = acpi_ns_convert_entry_to_handle (acpi_gbl_root_node);
+		return (AE_OK);
+	}
+
+	/*
+	 *  Find the Node and convert to a handle
+	 */
+	status = acpi_ns_get_node_by_path (pathname, prefix_node, ACPI_NS_NO_UPSEARCH,
+			  &node);
+
+	*ret_handle = NULL;
+	if (ACPI_SUCCESS (status)) {
+		*ret_handle = acpi_ns_convert_entry_to_handle (node);
+	}
+
+	return (status);
+}
+EXPORT_SYMBOL(acpi_get_handle);
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_get_name
+ *
+ * PARAMETERS:  Handle          - Handle to be converted to a pathname
+ *              name_type       - Full pathname or single segment
+ *              Buffer          - Buffer for returned path
+ *
+ * RETURN:      Pointer to a string containing the fully qualified Name.
+ *
+ * DESCRIPTION: This routine returns the fully qualified name associated with
+ *              the Handle parameter.  This and the acpi_pathname_to_handle are
+ *              complementary functions.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_name (
+	acpi_handle                     handle,
+	u32                             name_type,
+	struct acpi_buffer              *buffer)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node;
+
+
+	/* Parameter validation */
+
+	if (name_type > ACPI_NAME_TYPE_MAX) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_validate_buffer (buffer);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	if (name_type == ACPI_FULL_PATHNAME) {
+		/* Get the full pathname (From the namespace root) */
+
+		status = acpi_ns_handle_to_pathname (handle, buffer);
+		return (status);
+	}
+
+	/*
+	 * Wants the single segment ACPI name.
+	 * Validate handle and convert to a namespace Node
+	 */
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	node = acpi_ns_map_handle_to_node (handle);
+	if (!node) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit;
+	}
+
+	/* Validate/Allocate/Clear caller buffer */
+
+	status = acpi_ut_initialize_buffer (buffer, ACPI_PATH_SEGMENT_LENGTH);
+	if (ACPI_FAILURE (status)) {
+		goto unlock_and_exit;
+	}
+
+	/* Just copy the ACPI name from the Node and zero terminate it */
+
+	ACPI_STRNCPY (buffer->pointer, acpi_ut_get_node_name (node),
+			 ACPI_NAME_SIZE);
+	((char *) buffer->pointer) [ACPI_NAME_SIZE] = 0;
+	status = AE_OK;
+
+
+unlock_and_exit:
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+EXPORT_SYMBOL(acpi_get_name);
+
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_get_object_info
+ *
+ * PARAMETERS:  Handle          - Object Handle
+ *              Info            - Where the info is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Returns information about an object as gleaned from the
+ *              namespace node and possibly by running several standard
+ *              control methods (Such as in the case of a device.)
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_object_info (
+	acpi_handle                     handle,
+	struct acpi_buffer              *buffer)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node;
+	struct acpi_device_info         *info;
+	struct acpi_device_info         *return_info;
+	struct acpi_compatible_id_list *cid_list = NULL;
+	acpi_size                       size;
+
+
+	/* Parameter validation */
+
+	if (!handle || !buffer) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_validate_buffer (buffer);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	info = ACPI_MEM_CALLOCATE (sizeof (struct acpi_device_info));
+	if (!info) {
+		return (AE_NO_MEMORY);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	node = acpi_ns_map_handle_to_node (handle);
+	if (!node) {
+		(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+		goto cleanup;
+	}
+
+	/* Init return structure */
+
+	size = sizeof (struct acpi_device_info);
+
+	info->type  = node->type;
+	info->name  = node->name.integer;
+	info->valid = 0;
+
+	status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	/* If not a device, we are all done */
+
+	if (info->type == ACPI_TYPE_DEVICE) {
+		/*
+		 * Get extra info for ACPI Devices objects only:
+		 * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods.
+		 *
+		 * Note: none of these methods are required, so they may or may
+		 * not be present for this device.  The Info->Valid bitfield is used
+		 * to indicate which methods were found and ran successfully.
+		 */
+
+		/* Execute the Device._HID method */
+
+		status = acpi_ut_execute_HID (node, &info->hardware_id);
+		if (ACPI_SUCCESS (status)) {
+			info->valid |= ACPI_VALID_HID;
+		}
+
+		/* Execute the Device._UID method */
+
+		status = acpi_ut_execute_UID (node, &info->unique_id);
+		if (ACPI_SUCCESS (status)) {
+			info->valid |= ACPI_VALID_UID;
+		}
+
+		/* Execute the Device._CID method */
+
+		status = acpi_ut_execute_CID (node, &cid_list);
+		if (ACPI_SUCCESS (status)) {
+			size += ((acpi_size) cid_list->count - 1) *
+					 sizeof (struct acpi_compatible_id);
+			info->valid |= ACPI_VALID_CID;
+		}
+
+		/* Execute the Device._STA method */
+
+		status = acpi_ut_execute_STA (node, &info->current_status);
+		if (ACPI_SUCCESS (status)) {
+			info->valid |= ACPI_VALID_STA;
+		}
+
+		/* Execute the Device._ADR method */
+
+		status = acpi_ut_evaluate_numeric_object (METHOD_NAME__ADR, node,
+				  &info->address);
+		if (ACPI_SUCCESS (status)) {
+			info->valid |= ACPI_VALID_ADR;
+		}
+
+		/* Execute the Device._sx_d methods */
+
+		status = acpi_ut_execute_sxds (node, info->highest_dstates);
+		if (ACPI_SUCCESS (status)) {
+			info->valid |= ACPI_VALID_SXDS;
+		}
+	}
+
+	/* Validate/Allocate/Clear caller buffer */
+
+	status = acpi_ut_initialize_buffer (buffer, size);
+	if (ACPI_FAILURE (status)) {
+		goto cleanup;
+	}
+
+	/* Populate the return buffer */
+
+	return_info = buffer->pointer;
+	ACPI_MEMCPY (return_info, info, sizeof (struct acpi_device_info));
+
+	if (cid_list) {
+		ACPI_MEMCPY (&return_info->compatibility_id, cid_list, cid_list->size);
+	}
+
+
+cleanup:
+	ACPI_MEM_FREE (info);
+	if (cid_list) {
+		ACPI_MEM_FREE (cid_list);
+	}
+	return (status);
+}
+EXPORT_SYMBOL(acpi_get_object_info);
+
diff --git a/drivers/acpi/namespace/nsxfobj.c b/drivers/acpi/namespace/nsxfobj.c
new file mode 100644
index 00000000000..19acf32674b
--- /dev/null
+++ b/drivers/acpi/namespace/nsxfobj.c
@@ -0,0 +1,262 @@
+/*******************************************************************************
+ *
+ * Module Name: nsxfobj - Public interfaces to the ACPI subsystem
+ *                         ACPI Object oriented interfaces
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2005, R. Byron Moore
+ * 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 <linux/module.h>
+
+#include <acpi/acpi.h>
+#include <acpi/acnamesp.h>
+
+
+#define _COMPONENT          ACPI_NAMESPACE
+	 ACPI_MODULE_NAME    ("nsxfobj")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_get_type
+ *
+ * PARAMETERS:  Handle          - Handle of object whose type is desired
+ *              *ret_type       - Where the type will be placed
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This routine returns the type associatd with a particular handle
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_type (
+	acpi_handle                     handle,
+	acpi_object_type                *ret_type)
+{
+	struct acpi_namespace_node      *node;
+	acpi_status                     status;
+
+
+	/* Parameter Validation */
+
+	if (!ret_type) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	/*
+	 * Special case for the predefined Root Node
+	 * (return type ANY)
+	 */
+	if (handle == ACPI_ROOT_OBJECT) {
+		*ret_type = ACPI_TYPE_ANY;
+		return (AE_OK);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/* Convert and validate the handle */
+
+	node = acpi_ns_map_handle_to_node (handle);
+	if (!node) {
+		(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+		return (AE_BAD_PARAMETER);
+	}
+
+	*ret_type = node->type;
+
+
+	status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+EXPORT_SYMBOL(acpi_get_type);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_get_parent
+ *
+ * PARAMETERS:  Handle          - Handle of object whose parent is desired
+ *              ret_handle      - Where the parent handle will be placed
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Returns a handle to the parent of the object represented by
+ *              Handle.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_parent (
+	acpi_handle                     handle,
+	acpi_handle                     *ret_handle)
+{
+	struct acpi_namespace_node      *node;
+	acpi_status                     status;
+
+
+	if (!ret_handle) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	/* Special case for the predefined Root Node (no parent) */
+
+	if (handle == ACPI_ROOT_OBJECT) {
+		return (AE_NULL_ENTRY);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/* Convert and validate the handle */
+
+	node = acpi_ns_map_handle_to_node (handle);
+	if (!node) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit;
+	}
+
+	/* Get the parent entry */
+
+	*ret_handle =
+		acpi_ns_convert_entry_to_handle (acpi_ns_get_parent_node (node));
+
+	/* Return exception if parent is null */
+
+	if (!acpi_ns_get_parent_node (node)) {
+		status = AE_NULL_ENTRY;
+	}
+
+
+unlock_and_exit:
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+EXPORT_SYMBOL(acpi_get_parent);
+
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_get_next_object
+ *
+ * PARAMETERS:  Type            - Type of object to be searched for
+ *              Parent          - Parent object whose children we are getting
+ *              last_child      - Previous child that was found.
+ *                                The NEXT child will be returned
+ *              ret_handle      - Where handle to the next object is placed
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Return the next peer object within the namespace.  If Handle is
+ *              valid, Scope is ignored.  Otherwise, the first object within
+ *              Scope is returned.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_get_next_object (
+	acpi_object_type                type,
+	acpi_handle                     parent,
+	acpi_handle                     child,
+	acpi_handle                     *ret_handle)
+{
+	acpi_status                     status;
+	struct acpi_namespace_node      *node;
+	struct acpi_namespace_node      *parent_node = NULL;
+	struct acpi_namespace_node      *child_node = NULL;
+
+
+	/* Parameter validation */
+
+	if (type > ACPI_TYPE_EXTERNAL_MAX) {
+		return (AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE (status)) {
+		return (status);
+	}
+
+	/* If null handle, use the parent */
+
+	if (!child) {
+		/* Start search at the beginning of the specified scope */
+
+		parent_node = acpi_ns_map_handle_to_node (parent);
+		if (!parent_node) {
+			status = AE_BAD_PARAMETER;
+			goto unlock_and_exit;
+		}
+	}
+	else {
+		/* Non-null handle, ignore the parent */
+		/* Convert and validate the handle */
+
+		child_node = acpi_ns_map_handle_to_node (child);
+		if (!child_node) {
+			status = AE_BAD_PARAMETER;
+			goto unlock_and_exit;
+		}
+	}
+
+	/* Internal function does the real work */
+
+	node = acpi_ns_get_next_node (type, parent_node, child_node);
+	if (!node) {
+		status = AE_NOT_FOUND;
+		goto unlock_and_exit;
+	}
+
+	if (ret_handle) {
+		*ret_handle = acpi_ns_convert_entry_to_handle (node);
+	}
+
+
+unlock_and_exit:
+
+	(void) acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
+	return (status);
+}
+EXPORT_SYMBOL(acpi_get_next_object);
+