diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 651f2b6..e348db0 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -385,6 +385,7 @@
 			       union acpi_operand_object *return_desc)
 {
 	acpi_status status;
+	int same_as_implicit_return;
 
 	ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state);
 
@@ -402,6 +403,11 @@
 
 	if (return_desc) {
 
+		/* Is the implicit return object the same as the return desc? */
+
+		same_as_implicit_return =
+		    (walk_state->implicit_return_obj == return_desc);
+
 		/* Are we actually going to use the return value? */
 
 		if (walk_state->return_used) {
@@ -422,18 +428,23 @@
 		}
 
 		/*
-		 * The following code is the
-		 * optional support for a so-called "implicit return". Some AML code
-		 * assumes that the last value of the method is "implicitly" returned
-		 * to the caller. Just save the last result as the return value.
+		 * The following code is the optional support for the so-called
+		 * "implicit return". Some AML code assumes that the last value of the
+		 * method is "implicitly" returned to the caller, in the absence of an
+		 * explicit return value.
+		 *
+		 * Just save the last result of the method as the return value.
+		 *
 		 * NOTE: this is optional because the ASL language does not actually
 		 * support this behavior.
 		 */
 		else if (!acpi_ds_do_implicit_return
-			 (return_desc, walk_state, FALSE)) {
+			 (return_desc, walk_state, FALSE)
+			 || same_as_implicit_return) {
 			/*
 			 * Delete the return value if it will not be used by the
-			 * calling method
+			 * calling method or remove one reference if the explicit return
+			 * is the same as the implicit return value.
 			 */
 			acpi_ut_remove_reference(return_desc);
 		}
diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c
index b47c54f..459160f 100644
--- a/drivers/acpi/dispatcher/dsmthdat.c
+++ b/drivers/acpi/dispatcher/dsmthdat.c
@@ -336,7 +336,7 @@
 	 * Increment ref count so object can't be deleted while installed.
 	 * NOTE: We do not copy the object in order to preserve the call by
 	 * reference semantics of ACPI Control Method invocation.
-	 * (See ACPI specification 2.0_c)
+	 * (See ACPI Specification 2.0_c)
 	 */
 	acpi_ut_add_reference(object);
 
@@ -351,7 +351,7 @@
  * FUNCTION:    acpi_ds_method_data_get_value
  *
  * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
- *              Index               - which local_var or argument to get
+ *              Index               - Which local_var or argument to get
  *              walk_state          - Current walk state object
  *              dest_desc           - Where Arg or Local value is returned
  *
@@ -459,7 +459,7 @@
  * FUNCTION:    acpi_ds_method_data_delete_value
  *
  * PARAMETERS:  Opcode              - Either AML_LOCAL_OP or AML_ARG_OP
- *              Index               - which local_var or argument to delete
+ *              Index               - Which local_var or argument to delete
  *              walk_state          - Current walk state object
  *
  * RETURN:      None
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index a8deb70..3507439 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -178,12 +178,12 @@
 			 * Target of Scope() not found.  Generate an External for it, and
 			 * insert the name into the namespace.
 			 */
-			acpi_dm_add_to_external_list(path);
+			acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0);
 			status =
 			    acpi_ns_lookup(walk_state->scope_info, path,
 					   object_type, ACPI_IMODE_LOAD_PASS1,
 					   ACPI_NS_SEARCH_PARENT, walk_state,
-					   &(node));
+					   &node);
 		}
 #endif
 		if (ACPI_FAILURE(status)) {
@@ -301,10 +301,41 @@
 		status =
 		    acpi_ns_lookup(walk_state->scope_info, path, object_type,
 				   ACPI_IMODE_LOAD_PASS1, flags, walk_state,
-				   &(node));
+				   &node);
 		if (ACPI_FAILURE(status)) {
-			ACPI_ERROR_NAMESPACE(path, status);
-			return_ACPI_STATUS(status);
+			if (status == AE_ALREADY_EXISTS) {
+
+				/* The name already exists in this scope */
+
+				if (node->flags & ANOBJ_IS_EXTERNAL) {
+					/*
+					 * Allow one create on an object or segment that was
+					 * previously declared External
+					 */
+					node->flags &= ~ANOBJ_IS_EXTERNAL;
+					node->type = (u8) object_type;
+
+					/* Just retyped a node, probably will need to open a scope */
+
+					if (acpi_ns_opens_scope(object_type)) {
+						status =
+						    acpi_ds_scope_stack_push
+						    (node, object_type,
+						     walk_state);
+						if (ACPI_FAILURE(status)) {
+							return_ACPI_STATUS
+							    (status);
+						}
+					}
+					status = AE_OK;
+				}
+			}
+
+			if (ACPI_FAILURE(status)) {
+
+				ACPI_ERROR_NAMESPACE(path, status);
+				return_ACPI_STATUS(status);
+			}
 		}
 		break;
 	}
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 25fd12a..aa179dc 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -489,7 +489,7 @@
  * RETURN:      None
  *
  * DESCRIPTION: Perform the actual execution of a GPE control method.  This
- *              function is called from an invocation of acpi_os_queue_for_execution
+ *              function is called from an invocation of acpi_os_exece
  *              (and therefore does NOT execute at interrupt level) so that
  *              the control method itself is not executed in the context of
  *              an interrupt handler.
@@ -674,9 +674,9 @@
 		 * Execute the method associated with the GPE
 		 * NOTE: Level-triggered GPEs are cleared after the method completes.
 		 */
-		status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE,
-						     acpi_ev_asynch_execute_gpe_method,
-						     gpe_event_info);
+		status = acpi_os_execute(OSL_GPE_HANDLER,
+					 acpi_ev_asynch_execute_gpe_method,
+					 gpe_event_info);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Unable to queue handler for GPE[%2X] - event disabled",
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index 97e0548..24e0b8d 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -191,9 +191,8 @@
 		notify_info->notify.value = (u16) notify_value;
 		notify_info->notify.handler_obj = handler_obj;
 
-		status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH,
-						     acpi_ev_notify_dispatch,
-						     notify_info);
+		status = acpi_os_execute(OSL_NOTIFY_HANDLER,
+					 acpi_ev_notify_dispatch, notify_info);
 		if (ACPI_FAILURE(status)) {
 			acpi_ut_delete_generic_state(notify_info);
 		}
@@ -346,9 +345,8 @@
 
 		/* Run the Global Lock thread which will signal all waiting threads */
 
-		status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH,
-						     acpi_ev_global_lock_thread,
-						     context);
+		status = acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER,
+					 acpi_ev_global_lock_thread, context);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Could not queue Global Lock thread"));
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index eb29e96..edf9d2e 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -261,7 +261,8 @@
  *              Function            - Read or Write operation
  *              Address             - Where in the space to read or write
  *              bit_width           - Field width in bits (8, 16, 32, or 64)
- *              Value               - Pointer to in or out value
+ *              Value               - Pointer to in or out value, must be
+ *                                    full 64-bit acpi_integer
  *
  * RETURN:      Status
  *
@@ -274,7 +275,7 @@
 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 			       u32 function,
 			       acpi_physical_address address,
-			       u32 bit_width, void *value)
+			       u32 bit_width, acpi_integer * value)
 {
 	acpi_status status;
 	acpi_status status2;
@@ -1007,7 +1008,7 @@
  *
  * PARAMETERS:  walk_namespace callback
  *
- * DESCRIPTION: Run _REg method for region objects of the requested space_iD
+ * DESCRIPTION: Run _REG method for region objects of the requested space_iD
  *
  ******************************************************************************/
 
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c
index 9c46f33..9ae3cb5 100644
--- a/drivers/acpi/executer/exconfig.c
+++ b/drivers/acpi/executer/exconfig.c
@@ -298,6 +298,7 @@
 	struct acpi_table_header *table_ptr = NULL;
 	acpi_physical_address address;
 	struct acpi_table_header table_header;
+	acpi_integer temp;
 	u32 i;
 
 	ACPI_FUNCTION_TRACE(ex_load_op);
@@ -326,7 +327,7 @@
 
 		address = obj_desc->region.address;
 
-		/* Get the table length from the table header */
+		/* Get part of the table header to get the table length */
 
 		table_header.length = 0;
 		for (i = 0; i < 8; i++) {
@@ -334,11 +335,14 @@
 			    acpi_ev_address_space_dispatch(obj_desc, ACPI_READ,
 							   (acpi_physical_address)
 							   (i + address), 8,
-							   ((u8 *) &
-							    table_header) + i);
+							   &temp);
 			if (ACPI_FAILURE(status)) {
 				return_ACPI_STATUS(status);
 			}
+
+			/* Get the one valid byte of the returned 64-bit value */
+
+			ACPI_CAST_PTR(u8, &table_header)[i] = (u8) temp;
 		}
 
 		/* Sanity check the table length */
@@ -361,11 +365,14 @@
 			    acpi_ev_address_space_dispatch(obj_desc, ACPI_READ,
 							   (acpi_physical_address)
 							   (i + address), 8,
-							   ((u8 *) table_ptr +
-							    i));
+							   &temp);
 			if (ACPI_FAILURE(status)) {
 				goto cleanup;
 			}
+
+			/* Get the one valid byte of the returned 64-bit value */
+
+			ACPI_CAST_PTR(u8, table_ptr)[i] = (u8) temp;
 		}
 		break;
 
diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c
index 18925f5..99ebe5a 100644
--- a/drivers/acpi/executer/exstorob.c
+++ b/drivers/acpi/executer/exstorob.c
@@ -103,7 +103,7 @@
 		 * NOTE: ACPI versions up to 3.0 specified that the buffer must be
 		 * truncated if the string is smaller than the buffer.  However, "other"
 		 * implementations of ACPI never did this and thus became the defacto
-		 * standard. ACPi 3.0_a changes this behavior such that the buffer
+		 * standard. ACPI 3.0_a changes this behavior such that the buffer
 		 * is no longer truncated.
 		 */
 
diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c
index 5e3f63a..ba8ad56 100644
--- a/drivers/acpi/namespace/nsaccess.c
+++ b/drivers/acpi/namespace/nsaccess.c
@@ -157,7 +157,7 @@
 
 #if defined (ACPI_ASL_COMPILER)
 
-				/* save the parameter count for the i_aSL compiler */
+				/* Save the parameter count for the i_aSL compiler */
 
 				new_node->value = obj_desc->method.param_count;
 #else
@@ -311,8 +311,7 @@
 	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);
+	u32 local_flags;
 
 	ACPI_FUNCTION_TRACE(ns_lookup);
 
@@ -320,8 +319,9 @@
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	acpi_gbl_ns_lookup_count++;
+	local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT);
 	*return_node = ACPI_ENTRY_NOT_FOUND;
+	acpi_gbl_ns_lookup_count++;
 
 	if (!acpi_gbl_root_node) {
 		return_ACPI_STATUS(AE_NO_NAMESPACE);
diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c
index 34ac512..d247347 100644
--- a/drivers/acpi/namespace/nssearch.c
+++ b/drivers/acpi/namespace/nssearch.c
@@ -299,7 +299,7 @@
 
 	if (!node || !target_name || !return_node) {
 		ACPI_ERROR((AE_INFO,
-			    "Null param: Node %p Name %X ReturnNode %p",
+			    "Null parameter: Node %p Name %X ReturnNode %p",
 			    node, target_name, return_node));
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
@@ -385,6 +385,11 @@
 	if (!new_node) {
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
+#ifdef ACPI_ASL_COMPILER
+	if (flags & ACPI_NS_EXTERNAL) {
+		new_node->flags |= ANOBJ_IS_EXTERNAL;
+	}
+#endif
 
 	/* Install the new object into the parent's list of children */
 
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index a573ad5..cf87b02 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -451,7 +451,7 @@
 		 */
 		buffer_size = acpi_gbl_resource_struct_sizes[resource_index] +
 		    extra_struct_bytes;
-		buffer_size = ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
+		buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size);
 
 		*size_needed += buffer_size;
 
@@ -579,7 +579,7 @@
 
 		/* Round up the size since each element must be aligned */
 
-		temp_size_needed = ACPI_ROUND_UP_to_64_bIT(temp_size_needed);
+		temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed);
 
 		/* Point to the next union acpi_operand_object */
 
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index 4c322da..008058a 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -335,7 +335,7 @@
 		/* Now align the current length */
 
 		user_prt->length =
-		    (u32) ACPI_ROUND_UP_to_64_bIT(user_prt->length);
+		    (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
 
 		/* 4) Fourth subobject: Dereference the PRT.source_index */
 
diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c
index aa98eeb..0e493f2 100644
--- a/drivers/acpi/resources/rsutils.c
+++ b/drivers/acpi/resources/rsutils.c
@@ -354,6 +354,7 @@
 		 * Zero the entire area of the buffer.
 		 */
 		total_length =
+		    (u32)
 		    ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
 		    1;
 		total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
@@ -528,7 +529,7 @@
 	 */
 	status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
 
-	/* on exit, we must delete the object returned by evaluate_object */
+	/* On exit, we must delete the object returned by evaluate_object */
 
 	acpi_ut_remove_reference(obj_desc);
 	return_ACPI_STATUS(status);
@@ -578,7 +579,7 @@
 	 */
 	status = acpi_rs_create_resource_list(obj_desc, ret_buffer);
 
-	/* on exit, we must delete the object returned by evaluate_object */
+	/* On exit, we must delete the object returned by evaluate_object */
 
 	acpi_ut_remove_reference(obj_desc);
 	return_ACPI_STATUS(status);
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c
index 9e22643..4949652 100644
--- a/drivers/acpi/tables/tbrsdt.c
+++ b/drivers/acpi/tables/tbrsdt.c
@@ -196,10 +196,8 @@
 		ACPI_DUMP_BUFFER(acpi_gbl_RSDP, 20);
 
 		ACPI_ERROR((AE_INFO,
-			    "RSDT/XSDT signature at %X (%p) is invalid",
-			    acpi_gbl_RSDP->rsdt_physical_address,
-			    (void *)(acpi_native_uint) acpi_gbl_RSDP->
-			    rsdt_physical_address));
+			    "RSDT/XSDT signature at %X is invalid",
+			    acpi_gbl_RSDP->rsdt_physical_address));
 
 		if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
 			ACPI_ERROR((AE_INFO, "Looking for RSDT"));
diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c
index 3107e74..da2648b 100644
--- a/drivers/acpi/tables/tbxfroot.c
+++ b/drivers/acpi/tables/tbxfroot.c
@@ -472,10 +472,10 @@
  *
  * RETURN:      Status, RSDP physical address
  *
- * DESCRIPTION: search lower 1_mbyte of memory for the root system descriptor
+ * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
  *              pointer structure.  If it is found, set *RSDP to point to it.
  *
- *              NOTE1: The RSDp must be either in the first 1_k of the Extended
+ *              NOTE1: The RSDP must be either in the first 1_k of the Extended
  *              BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.)
  *              Only a 32-bit physical address is necessary.
  *
@@ -525,7 +525,7 @@
 
 		if (physical_address > 0x400) {
 			/*
-			 * 1b) Search EBDA paragraphs (EBDa is required to be a
+			 * 1b) Search EBDA paragraphs (EBDA is required to be a
 			 *     minimum of 1_k length)
 			 */
 			status = acpi_os_map_memory((acpi_physical_address)
@@ -550,7 +550,7 @@
 				/* Return the physical address */
 
 				physical_address +=
-				    ACPI_PTR_DIFF(mem_rover, table_ptr);
+				    (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
 
 				table_info->physical_address =
 				    (acpi_physical_address) physical_address;
@@ -584,9 +584,9 @@
 
 			/* Return the physical address */
 
-			physical_address =
-			    ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF(mem_rover,
-								     table_ptr);
+			physical_address = (u32)
+			    (ACPI_HI_RSDP_WINDOW_BASE +
+			     ACPI_PTR_DIFF(mem_rover, table_ptr));
 
 			table_info->physical_address =
 			    (acpi_physical_address) physical_address;
@@ -607,7 +607,7 @@
 
 		if (physical_address > 0x400) {
 			/*
-			 * 1b) Search EBDA paragraphs (EBDa is required to be a minimum of
+			 * 1b) Search EBDA paragraphs (EBDA is required to be a minimum of
 			 *     1_k length)
 			 */
 			mem_rover =
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index e666c71..9450f9b 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -443,7 +443,6 @@
 /* Region type decoding */
 
 const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = {
-/*! [Begin] no source code translation (keep these ASL Keywords as-is) */
 	"SystemMemory",
 	"SystemIO",
 	"PCI_Config",
@@ -452,7 +451,6 @@
 	"CMOS",
 	"PCIBARTarget",
 	"DataTable"
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_region_name(u8 space_id)
@@ -482,13 +480,11 @@
 /* Event type decoding */
 
 static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = {
-/*! [Begin] no source code translation (keep these strings as-is) */
 	"PM_Timer",
 	"GlobalLock",
 	"PowerButton",
 	"SleepButton",
 	"RealTimeClock",
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_event_name(u32 event_id)
@@ -526,7 +522,6 @@
 /* Printable names of the ACPI object types */
 
 static const char *acpi_gbl_ns_type_names[] = {
-/*! [Begin] no source code translation (keep these strings as-is) */
 	/* 00 */ "Untyped",
 	/* 01 */ "Integer",
 	/* 02 */ "String",
@@ -558,7 +553,6 @@
 	/* 28 */ "Extra",
 	/* 29 */ "Data",
 	/* 30 */ "Invalid"
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_type_name(acpi_object_type type)
@@ -641,7 +635,6 @@
 /* Printable names of object descriptor types */
 
 static const char *acpi_gbl_desc_type_names[] = {
-/*! [Begin] no source code translation (keep these ASL Keywords as-is) */
 	/* 00 */ "Invalid",
 	/* 01 */ "Cached",
 	/* 02 */ "State-Generic",
@@ -658,7 +651,6 @@
 	/* 13 */ "Parser",
 	/* 14 */ "Operand",
 	/* 15 */ "Node"
-/*! [End] no source code translation !*/
 };
 
 char *acpi_ut_get_descriptor_name(void *object)
diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index 11e72e6..0177ed3 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -63,7 +63,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20060421
+#define ACPI_CA_VERSION                 0x20060512
 
 /*
  * OS name, used for the _OS object.  The _OS object is essentially obsolete,
diff --git a/include/acpi/acdisasm.h b/include/acpi/acdisasm.h
index 6f25565..9a7d692 100644
--- a/include/acpi/acdisasm.h
+++ b/include/acpi/acdisasm.h
@@ -54,7 +54,11 @@
 
 struct acpi_external_list {
 	char *path;
+	char *internal_path;
 	struct acpi_external_list *next;
+	u32 value;
+	u16 length;
+	u8 type;
 };
 
 extern struct acpi_external_list *acpi_gbl_external_list;
@@ -108,6 +112,8 @@
 
 struct acpi_op_walk_info {
 	u32 level;
+	u32 last_level;
+	u32 count;
 	u32 bit_offset;
 	u32 flags;
 	struct acpi_walk_state *walk_state;
@@ -390,7 +396,7 @@
 /*
  * dmutils
  */
-void acpi_dm_add_to_external_list(char *path);
+void acpi_dm_add_to_external_list(char *path, u8 type, u32 value);
 
 /*
  * dmrestag
diff --git a/include/acpi/acevents.h b/include/acpi/acevents.h
index 272bd04..23414282 100644
--- a/include/acpi/acevents.h
+++ b/include/acpi/acevents.h
@@ -138,7 +138,7 @@
 acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 			       u32 function,
 			       acpi_physical_address address,
-			       u32 bit_width, void *value);
+			       u32 bit_width, acpi_integer * value);
 
 acpi_status
 acpi_ev_attach_region(union acpi_operand_object *handler_obj,
diff --git a/include/acpi/acglobal.h b/include/acpi/acglobal.h
index 5f2daf4..9297f29 100644
--- a/include/acpi/acglobal.h
+++ b/include/acpi/acglobal.h
@@ -292,14 +292,6 @@
 
 /*****************************************************************************
  *
- * Parser globals
- *
- ****************************************************************************/
-
-ACPI_EXTERN union acpi_parse_object *acpi_gbl_parsed_namespace_root;
-
-/*****************************************************************************
- *
  * Hardware globals
  *
  ****************************************************************************/
diff --git a/include/acpi/aclocal.h b/include/acpi/aclocal.h
index 06a9bd0..98c697e 100644
--- a/include/acpi/aclocal.h
+++ b/include/acpi/aclocal.h
@@ -207,10 +207,11 @@
 #define ANOBJ_METHOD_LOCAL              0x08	/* Node is a method local */
 #define ANOBJ_SUBTREE_HAS_INI           0x10	/* Used to optimize device initialization */
 
-#define ANOBJ_METHOD_NO_RETVal          0x10	/* i_aSL only: Method has no return value */
-#define ANOBJ_METHOD_SOME_NO_RETVal     0x20	/* i_aSL only: Method has at least one return value */
-#define ANOBJ_IS_BIT_OFFSet             0x40	/* i_aSL only: Reference is a bit offset */
-#define ANOBJ_IS_REFERENCed             0x80	/* i_aSL only: Object was referenced */
+#define ANOBJ_IS_EXTERNAL               0x08	/* i_aSL only: This object created via External() */
+#define ANOBJ_METHOD_NO_RETVAL          0x10	/* i_aSL only: Method has no return value */
+#define ANOBJ_METHOD_SOME_NO_RETVAL     0x20	/* i_aSL only: Method has at least one return value */
+#define ANOBJ_IS_BIT_OFFSET             0x40	/* i_aSL only: Reference is a bit offset */
+#define ANOBJ_IS_REFERENCED             0x80	/* i_aSL only: Object was referenced */
 
 /*
  * ACPI Table Descriptor.  One per ACPI table
@@ -595,6 +596,9 @@
 #define ACPI_DASM_UNICODE               0x03
 #define ACPI_DASM_EISAID                0x04
 #define ACPI_DASM_MATCHOP               0x05
+#define ACPI_DASM_LNOT_PREFIX           0x06
+#define ACPI_DASM_LNOT_SUFFIX           0x07
+#define ACPI_DASM_IGNORE                0x08
 
 /*
  * Generic operation (for example:  If, While, Store)
@@ -613,7 +617,7 @@
 	u32 name;		/* 4-byte name or zero if no name */
 };
 
-/* this version is used by the i_aSL compiler only */
+/* This version is used by the i_aSL compiler only */
 
 #define ACPI_MAX_PARSEOP_NAME   20
 
diff --git a/include/acpi/acmacros.h b/include/acpi/acmacros.h
index b7547ab..38f9aa4 100644
--- a/include/acpi/acmacros.h
+++ b/include/acpi/acmacros.h
@@ -103,7 +103,7 @@
  * printf() format helpers
  */
 
-/* Split 64-bit integer into two 32-bit values. Use with %8.8X%8.8X */
+/* Split 64-bit integer into two 32-bit values. Use with %8.8_x%8.8_x */
 
 #define ACPI_FORMAT_UINT64(i)           ACPI_HIDWORD(i),ACPI_LODWORD(i)
 
@@ -359,12 +359,12 @@
 
 /* Note: sizeof(acpi_native_uint) evaluates to either 2, 4, or 8 */
 
-#define ACPI_ROUND_DOWN_to_32_bIT(a)        ACPI_ROUND_DOWN(a,4)
-#define ACPI_ROUND_DOWN_to_64_bIT(a)        ACPI_ROUND_DOWN(a,8)
+#define ACPI_ROUND_DOWN_TO_32BIT(a)         ACPI_ROUND_DOWN(a,4)
+#define ACPI_ROUND_DOWN_TO_64BIT(a)         ACPI_ROUND_DOWN(a,8)
 #define ACPI_ROUND_DOWN_TO_NATIVE_WORD(a)   ACPI_ROUND_DOWN(a,sizeof(acpi_native_uint))
 
-#define ACPI_ROUND_UP_to_32_bIT(a)          ACPI_ROUND_UP(a,4)
-#define ACPI_ROUND_UP_to_64_bIT(a)          ACPI_ROUND_UP(a,8)
+#define ACPI_ROUND_UP_TO_32BIT(a)           ACPI_ROUND_UP(a,4)
+#define ACPI_ROUND_UP_TO_64BIT(a)           ACPI_ROUND_UP(a,8)
 #define ACPI_ROUND_UP_TO_NATIVE_WORD(a)     ACPI_ROUND_UP(a,sizeof(acpi_native_uint))
 
 #define ACPI_ROUND_BITS_UP_TO_BYTES(a)      ACPI_DIV_8((a) + 7)
diff --git a/include/acpi/acnamesp.h b/include/acpi/acnamesp.h
index 132d64a..2ef8540 100644
--- a/include/acpi/acnamesp.h
+++ b/include/acpi/acnamesp.h
@@ -64,6 +64,7 @@
 #define ACPI_NS_NO_PEER_SEARCH      0x04
 #define ACPI_NS_ERROR_IF_FOUND      0x08
 #define ACPI_NS_PREFIX_IS_SCOPE     0x10
+#define ACPI_NS_EXTERNAL            0x20
 
 #define ACPI_NS_WALK_UNLOCK         TRUE
 #define ACPI_NS_WALK_NO_UNLOCK      FALSE
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index a5264fa..982e7ea 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -50,12 +50,17 @@
 #include "platform/acenv.h"
 #include "actypes.h"
 
-/* Priorities for acpi_os_queue_for_execution */
+/* Types for acpi_os_execute */
 
-#define OSD_PRIORITY_GPE            1
-#define OSD_PRIORITY_HIGH           2
-#define OSD_PRIORITY_MED            3
-#define OSD_PRIORITY_LO             4
+typedef enum {
+	OSL_GLOBAL_LOCK_HANDLER,
+	OSL_NOTIFY_HANDLER,
+	OSL_GPE_HANDLER,
+	OSL_DEBUGGER_THREAD,
+	OSL_EC_POLL_HANDLER,
+	OSL_EC_BURST_HANDLER,
+
+} acpi_execute_type;
 
 #define ACPI_NO_UNIT_LIMIT          ((u32) -1)
 #define ACPI_MUTEX_SEM              1
@@ -164,8 +169,8 @@
 acpi_thread_id acpi_os_get_thread_id(void);
 
 acpi_status
-acpi_os_queue_for_execution(u32 priority,
-			    acpi_osd_exec_callback function, void *context);
+acpi_os_execute(acpi_execute_type type,
+		acpi_osd_exec_callback function, void *context);
 
 void acpi_os_wait_events_complete(void *context);
 
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index e1a4013..b125cee 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -206,8 +206,8 @@
 	u32                             V1_pm_tmr_blk;      /* Port address of Power Mgt Timer Ctrl Reg Blk */ \
 	u32                             V1_gpe0_blk;        /* Port addr of General Purpose acpi_event 0 Reg Blk */ \
 	u32                             V1_gpe1_blk;        /* Port addr of General Purpose acpi_event 1 Reg Blk */ \
-	u8                              pm1_evt_len;        /* Byte length of ports at pm1_x_evt_blk */ \
-	u8                              pm1_cnt_len;        /* Byte length of ports at pm1_x_cnt_blk */ \
+	u8                              pm1_evt_len;        /* Byte Length of ports at pm1_x_evt_blk */ \
+	u8                              pm1_cnt_len;        /* Byte Length of ports at pm1_x_cnt_blk */ \
 	u8                              pm2_cnt_len;        /* Byte Length of ports at pm2_cnt_blk */ \
 	u8                              pm_tm_len;          /* Byte Length of ports at pm_tm_blk */ \
 	u8                              gpe0_blk_len;       /* Byte Length of ports at gpe0_blk */ \
@@ -252,7 +252,7 @@
 	u8 S4rtc_sts_valid:1;	/* 16:    Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
 	u8 remote_power_on_capable:1;	/* 17:    System is compatible with remote power on (ACPI 3.0) */
 	u8 force_apic_cluster_model:1;	/* 18:    All local APICs must use cluster model (ACPI 3.0) */
-	u8 force_apic_physical_destination_mode:1;	/* 19:   all local x_aPICs must use physical dest mode (ACPI 3.0) */
+	u8 force_apic_physical_destination_mode:1;	/* 19:   All local x_aPICs must use physical dest mode (ACPI 3.0) */
 	 u8:4;			/* 20-23: Reserved, must be zero */
 	u8 reserved3;		/* 24-31: Reserved, must be zero */
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 6d4e743..77cf123 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -971,7 +971,7 @@
  * Definitions for Resource Attributes
  */
 typedef u16 acpi_rs_length;	/* Resource Length field is fixed at 16 bits */
-typedef u32 acpi_rsdesc_size;	/* Max Resource Descriptor size is (length+3) = (64_k-1)+3 */
+typedef u32 acpi_rsdesc_size;	/* Max Resource Descriptor size is (Length+3) = (64_k-1)+3 */
 
 /*
  *  Memory Attributes
@@ -986,8 +986,8 @@
 
 /*
  *  IO Attributes
- *  The ISA Io ranges are:     n000-n0_ffh, n400-n4_ffh, n800-n8_ffh, n_c00-n_cFFh.
- *  The non-ISA Io ranges are: n100-n3_ffh, n500-n7_ffh, n900-n_bFfh, n_cd0-n_fFFh.
+ *  The ISA IO ranges are:     n000-n0_fFh, n400-n4_fFh, n800-n8_fFh, n_c00-n_cFFh.
+ *  The non-ISA IO ranges are: n100-n3_fFh, n500-n7_fFh, n900-n_bFFh, n_cd0-n_fFFh.
  */
 #define ACPI_NON_ISA_ONLY_RANGES        (u8) 0x01
 #define ACPI_ISA_ONLY_RANGES            (u8) 0x02
diff --git a/include/acpi/amlcode.h b/include/acpi/amlcode.h
index 37964a5..cf18426 100644
--- a/include/acpi/amlcode.h
+++ b/include/acpi/amlcode.h
@@ -180,8 +180,10 @@
 #define AML_BANK_FIELD_OP           (u16) 0x5b87
 #define AML_DATA_REGION_OP          (u16) 0x5b88	/* ACPI 2.0 */
 
-/* Bogus opcodes (they are actually two separate opcodes) */
-
+/*
+ * Combination opcodes (actually two one-byte opcodes)
+ * Used by the disassembler and i_aSL compiler
+ */
 #define AML_LGREATEREQUAL_OP        (u16) 0x9295
 #define AML_LLESSEQUAL_OP           (u16) 0x9294
 #define AML_LNOTEQUAL_OP            (u16) 0x9293
diff --git a/include/acpi/amlresrc.h b/include/acpi/amlresrc.h
index 6473686..be03818 100644
--- a/include/acpi/amlresrc.h
+++ b/include/acpi/amlresrc.h
@@ -47,8 +47,6 @@
 #ifndef __AMLRESRC_H
 #define __AMLRESRC_H
 
-/*! [Begin] no source code translation */
-
 /*
  * Resource descriptor tags, as defined in the ACPI specification.
  * Used to symbolically reference fields within a descriptor.
@@ -65,12 +63,12 @@
 #define ACPI_RESTAG_DMATYPE                     "_TYP"	/* Compatible(0), A(1), B(2), F(3) */
 #define ACPI_RESTAG_GRANULARITY                 "_GRA"
 #define ACPI_RESTAG_INTERRUPT                   "_INT"
-#define ACPI_RESTAG_INTERRUPTLEVEL              "_LL_"	/* ActiveLo(1), ActiveHi(0) */
-#define ACPI_RESTAG_INTERRUPTSHARE              "_SHR"	/* Shareable(1), NoShare(0) */
+#define ACPI_RESTAG_INTERRUPTLEVEL              "_LL_"	/* active_lo(1), active_hi(0) */
+#define ACPI_RESTAG_INTERRUPTSHARE              "_SHR"	/* Shareable(1), no_share(0) */
 #define ACPI_RESTAG_INTERRUPTTYPE               "_HE_"	/* Edge(1), Level(0) */
 #define ACPI_RESTAG_LENGTH                      "_LEN"
 #define ACPI_RESTAG_MEMATTRIBUTES               "_MTP"	/* Memory(0), Reserved(1), ACPI(2), NVS(3) */
-#define ACPI_RESTAG_MEMTYPE                     "_MEM"	/* NonCache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */
+#define ACPI_RESTAG_MEMTYPE                     "_MEM"	/* non_cache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */
 #define ACPI_RESTAG_MAXADDR                     "_MAX"
 #define ACPI_RESTAG_MINADDR                     "_MIN"
 #define ACPI_RESTAG_MAXTYPE                     "_MAF"
@@ -78,12 +76,11 @@
 #define ACPI_RESTAG_REGISTERBITOFFSET           "_RBO"
 #define ACPI_RESTAG_REGISTERBITWIDTH            "_RBW"
 #define ACPI_RESTAG_RANGETYPE                   "_RNG"
-#define ACPI_RESTAG_READWRITETYPE               "_RW_"	/* ReadOnly(0), Writeable (1) */
+#define ACPI_RESTAG_READWRITETYPE               "_RW_"	/* read_only(0), Writeable (1) */
 #define ACPI_RESTAG_TRANSLATION                 "_TRA"
 #define ACPI_RESTAG_TRANSTYPE                   "_TRS"	/* Sparse(1), Dense(0) */
 #define ACPI_RESTAG_TYPE                        "_TTP"	/* Translation(1), Static (0) */
-#define ACPI_RESTAG_XFERTYPE                    "_SIZ"	/* 8(0), 8And16(1), 16(2) */
-/*! [End] no source code translation !*/
+#define ACPI_RESTAG_XFERTYPE                    "_SIZ"	/* 8(0), 8_and16(1), 16(2) */
 
 /* Default sizes for "small" resource descriptors */
 
@@ -306,9 +303,9 @@
 	/* Utility overlays */
 
 	struct aml_resource_address address;
-	u32 u32_item;
-	u16 u16_item;
-	u8 U8item;
+	u32 dword_item;
+	u16 word_item;
+	u8 byte_item;
 };
 
 #endif