Merge commit 'v3.4-rc4' into next

65 files changed, 2115 insertions, 1245 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 7556913aba45..47768ff87343 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -384,6 +384,15 @@ config ACPI_CUSTOM_METHOD
 	  load additional kernel modules after boot, this feature may be used
 	  to override that restriction).
 
+config ACPI_BGRT
+        tristate "Boottime Graphics Resource Table support"
+        default n
+        help
+	  This driver adds support for exposing the ACPI Boottime Graphics
+	  Resource Table, which allows the operating system to obtain
+	  data from the firmware boot splash. It will appear under
+	  /sys/firmware/acpi/bgrt/ .
+
 source "drivers/acpi/apei/Kconfig"
 
 endif	# ACPI
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 1567028d2038..47199e2a9130 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_ACPI_SBS)		+= sbs.o
 obj-$(CONFIG_ACPI_HED)		+= hed.o
 obj-$(CONFIG_ACPI_EC_DEBUGFS)	+= ec_sys.o
 obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o
+obj-$(CONFIG_ACPI_BGRT)		+= bgrt.o
 
 # processor has its own "processor." module_param namespace
 processor-y			:= processor_driver.o processor_throttling.o
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 0ca208b6dcf0..793b8cc8e256 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -68,12 +68,14 @@ acpi-y +=		\
 
 acpi-y +=		\
 	hwacpi.o	\
+	hwesleep.o	\
 	hwgpe.o		\
 	hwpci.o		\
 	hwregs.o	\
 	hwsleep.o	\
 	hwvalid.o	\
-	hwxface.o
+	hwxface.o	\
+	hwxfsleep.o
 
 acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
 
diff --git a/drivers/acpi/acpica/accommon.h b/drivers/acpi/acpica/accommon.h
index a44bd424f9f4..8a7d51bfb3b3 100644
--- a/drivers/acpi/acpica/accommon.h
+++ b/drivers/acpi/acpica/accommon.h
@@ -51,7 +51,6 @@
  *
  * Note: The order of these include files is important.
  */
-#include "acconfig.h"		/* Global configuration constants */
 #include "acmacros.h"		/* C macros */
 #include "aclocal.h"		/* Internal data types */
 #include "acobject.h"		/* ACPI internal object */
diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
deleted file mode 100644
index 1f30af613e87..000000000000
--- a/drivers/acpi/acpica/acconfig.h
+++ /dev/null
@@ -1,231 +0,0 @@
-/******************************************************************************
- *
- * Name: acconfig.h - Global configuration constants
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2012, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#ifndef _ACCONFIG_H
-#define _ACCONFIG_H
-
-/******************************************************************************
- *
- * Configuration options
- *
- *****************************************************************************/
-
-/*
- * ACPI_DEBUG_OUTPUT    - This switch enables all the debug facilities of the
- *                        ACPI subsystem.  This includes the DEBUG_PRINT output
- *                        statements.  When disabled, all DEBUG_PRINT
- *                        statements are compiled out.
- *
- * ACPI_APPLICATION     - Use this switch if the subsystem is going to be run
- *                        at the application level.
- *
- */
-
-/*
- * OS name, used for the _OS object.  The _OS object is essentially obsolete,
- * but there is a large base of ASL/AML code in existing machines that check
- * for the string below.  The use of this string usually guarantees that
- * the ASL will execute down the most tested code path.  Also, there is some
- * code that will not execute the _OSI method unless _OS matches the string
- * below.  Therefore, change this string at your own risk.
- */
-#define ACPI_OS_NAME                    "Microsoft Windows NT"
-
-/* Maximum objects in the various object caches */
-
-#define ACPI_MAX_STATE_CACHE_DEPTH      96	/* State objects */
-#define ACPI_MAX_PARSE_CACHE_DEPTH      96	/* Parse tree objects */
-#define ACPI_MAX_EXTPARSE_CACHE_DEPTH   96	/* Parse tree objects */
-#define ACPI_MAX_OBJECT_CACHE_DEPTH     96	/* Interpreter operand objects */
-#define ACPI_MAX_NAMESPACE_CACHE_DEPTH  96	/* Namespace objects */
-
-/*
- * Should the subsystem abort the loading of an ACPI table if the
- * table checksum is incorrect?
- */
-#define ACPI_CHECKSUM_ABORT             FALSE
-
-/******************************************************************************
- *
- * Subsystem Constants
- *
- *****************************************************************************/
-
-/* Version of ACPI supported */
-
-#define ACPI_CA_SUPPORT_LEVEL           3
-
-/* Maximum count for a semaphore object */
-
-#define ACPI_MAX_SEMAPHORE_COUNT        256
-
-/* Maximum object reference count (detects object deletion issues) */
-
-#define ACPI_MAX_REFERENCE_COUNT        0x1000
-
-/* Default page size for use in mapping memory for operation regions */
-
-#define ACPI_DEFAULT_PAGE_SIZE          4096	/* Must be power of 2 */
-
-/* owner_id tracking. 8 entries allows for 255 owner_ids */
-
-#define ACPI_NUM_OWNERID_MASKS          8
-
-/* Size of the root table array is increased by this increment */
-
-#define ACPI_ROOT_TABLE_SIZE_INCREMENT  4
-
-/* Maximum number of While() loop iterations before forced abort */
-
-#define ACPI_MAX_LOOP_ITERATIONS        0xFFFF
-
-/* Maximum sleep allowed via Sleep() operator */
-
-#define ACPI_MAX_SLEEP                  2000	/* Two seconds */
-
-/* Address Range lists are per-space_id (Memory and I/O only) */
-
-#define ACPI_ADDRESS_RANGE_MAX          2
-
-/******************************************************************************
- *
- * ACPI Specification constants (Do not change unless the specification changes)
- *
- *****************************************************************************/
-
-/* Number of distinct GPE register blocks and register width */
-
-#define ACPI_MAX_GPE_BLOCKS             2
-#define ACPI_GPE_REGISTER_WIDTH         8
-
-/* Method info (in WALK_STATE), containing local variables and argumetns */
-
-#define ACPI_METHOD_NUM_LOCALS          8
-#define ACPI_METHOD_MAX_LOCAL           7
-
-#define ACPI_METHOD_NUM_ARGS            7
-#define ACPI_METHOD_MAX_ARG             6
-
-/* Length of _HID, _UID, _CID, and UUID values */
-
-#define ACPI_DEVICE_ID_LENGTH           0x09
-#define ACPI_MAX_CID_LENGTH             48
-#define ACPI_UUID_LENGTH                16
-
-/*
- * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG
- */
-#define ACPI_OBJ_NUM_OPERANDS           8
-#define ACPI_OBJ_MAX_OPERAND            7
-
-/* Number of elements in the Result Stack frame, can be an arbitrary value */
-
-#define ACPI_RESULTS_FRAME_OBJ_NUM      8
-
-/*
- * Maximal number of elements the Result Stack can contain,
- * it may be an arbitray value not exceeding the types of
- * result_size and result_count (now u8).
- */
-#define ACPI_RESULTS_OBJ_NUM_MAX        255
-
-/* Names within the namespace are 4 bytes long */
-
-#define ACPI_NAME_SIZE                  4
-#define ACPI_PATH_SEGMENT_LENGTH        5	/* 4 chars for name + 1 char for separator */
-#define ACPI_PATH_SEPARATOR             '.'
-
-/* Sizes for ACPI table headers */
-
-#define ACPI_OEM_ID_SIZE                6
-#define ACPI_OEM_TABLE_ID_SIZE          8
-
-/* Constants used in searching for the RSDP in low memory */
-
-#define ACPI_EBDA_PTR_LOCATION          0x0000040E	/* Physical Address */
-#define ACPI_EBDA_PTR_LENGTH            2
-#define ACPI_EBDA_WINDOW_SIZE           1024
-#define ACPI_HI_RSDP_WINDOW_BASE        0x000E0000	/* Physical Address */
-#define ACPI_HI_RSDP_WINDOW_SIZE        0x00020000
-#define ACPI_RSDP_SCAN_STEP             16
-
-/* Operation regions */
-
-#define ACPI_USER_REGION_BEGIN          0x80
-
-/* Maximum space_ids for Operation Regions */
-
-#define ACPI_MAX_ADDRESS_SPACE          255
-
-/* Array sizes.  Used for range checking also */
-
-#define ACPI_MAX_MATCH_OPCODE           5
-
-/* RSDP checksums */
-
-#define ACPI_RSDP_CHECKSUM_LENGTH       20
-#define ACPI_RSDP_XCHECKSUM_LENGTH      36
-
-/* SMBus, GSBus and IPMI bidirectional buffer size */
-
-#define ACPI_SMBUS_BUFFER_SIZE          34
-#define ACPI_GSBUS_BUFFER_SIZE          34
-#define ACPI_IPMI_BUFFER_SIZE           66
-
-/* _sx_d and _sx_w control methods */
-
-#define ACPI_NUM_sx_d_METHODS           4
-#define ACPI_NUM_sx_w_METHODS           5
-
-/******************************************************************************
- *
- * ACPI AML Debugger
- *
- *****************************************************************************/
-
-#define ACPI_DEBUGGER_MAX_ARGS          8	/* Must be max method args + 1 */
-
-#define ACPI_DEBUGGER_COMMAND_PROMPT    '-'
-#define ACPI_DEBUGGER_EXECUTE_PROMPT    '%'
-
-#endif				/* _ACCONFIG_H */
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index deaa81979561..5e8abb07724f 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -111,7 +111,7 @@ acpi_status acpi_db_find_name_in_namespace(char *name_arg);
 
 void acpi_db_set_scope(char *name);
 
-acpi_status acpi_db_sleep(char *object_arg);
+ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_db_sleep(char *object_arg))
 
 void acpi_db_find_references(char *object_arg);
 
@@ -119,11 +119,13 @@ void acpi_db_display_locks(void);
 
 void acpi_db_display_resources(char *object_arg);
 
-void acpi_db_display_gpes(void);
+ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_display_gpes(void))
 
 void acpi_db_check_integrity(void);
 
-void acpi_db_generate_gpe(char *gpe_arg, char *block_arg);
+ACPI_HW_DEPENDENT_RETURN_VOID(void
+			      acpi_db_generate_gpe(char *gpe_arg,
+						   char *block_arg))
 
 void acpi_db_check_predefined_names(void);
 
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index c53caa521a30..d700f63e4701 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -69,11 +69,10 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
  */
 acpi_status acpi_ev_init_global_lock_handler(void);
 
-acpi_status acpi_ev_acquire_global_lock(u16 timeout);
-
-acpi_status acpi_ev_release_global_lock(void);
-
-acpi_status acpi_ev_remove_global_lock_handler(void);
+ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
+			    acpi_ev_acquire_global_lock(u16 timeout))
+ ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void))
+ acpi_status acpi_ev_remove_global_lock_handler(void);
 
 /*
  * evgpe - Low-level GPE support
@@ -114,7 +113,9 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 			     struct acpi_gpe_block_info *gpe_block,
 			     void *context);
 
-acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block);
+ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
+			    acpi_ev_delete_gpe_block(struct acpi_gpe_block_info
+						     *gpe_block))
 
 u32
 acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
@@ -126,9 +127,10 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
  */
 acpi_status acpi_ev_gpe_initialize(void);
 
-void acpi_ev_update_gpes(acpi_owner_id table_owner_id);
+ACPI_HW_DEPENDENT_RETURN_VOID(void
+			      acpi_ev_update_gpes(acpi_owner_id table_owner_id))
 
-acpi_status
+ acpi_status
 acpi_ev_match_gpe_method(acpi_handle obj_handle,
 			 u32 level, void *context, void **return_value);
 
@@ -237,6 +239,5 @@ acpi_status acpi_ev_remove_sci_handler(void);
 
 u32 acpi_ev_initialize_sCI(u32 program_sCI);
 
-void acpi_ev_terminate(void);
-
+ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_terminate(void))
 #endif				/* __ACEVENTS_H__  */
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 2853f7673f3b..4f7d3f57d05c 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -147,7 +147,7 @@ u8 acpi_gbl_system_awake_and_running;
  */
 u8 acpi_gbl_reduced_hardware;
 
-#endif
+#endif				/* DEFINE_ACPI_GLOBALS */
 
 /* Do not disassemble buffers to resource descriptors */
 
@@ -184,8 +184,12 @@ ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer;
  * found in the RSDT/XSDT.
  */
 ACPI_EXTERN struct acpi_table_list acpi_gbl_root_table_list;
+
+#if (!ACPI_REDUCED_HARDWARE)
 ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS;
 
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
 /* These addresses are calculated from the FADT Event Block addresses */
 
 ACPI_EXTERN struct acpi_generic_address acpi_gbl_xpm1a_status;
@@ -397,10 +401,15 @@ ACPI_EXTERN struct acpi_fixed_event_handler
 ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head;
 ACPI_EXTERN struct acpi_gpe_block_info
 *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS];
+
+#if (!ACPI_REDUCED_HARDWARE)
+
 ACPI_EXTERN u8 acpi_gbl_all_gpes_initialized;
 ACPI_EXTERN ACPI_GBL_EVENT_HANDLER acpi_gbl_global_event_handler;
 ACPI_EXTERN void *acpi_gbl_global_event_handler_context;
 
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
 /*****************************************************************************
  *
  * Debugger globals
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 677793e938f5..5ccb99ae3a6f 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -81,6 +81,26 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value);
 acpi_status acpi_hw_clear_acpi_status(void);
 
 /*
+ * hwsleep - sleep/wake support (Legacy sleep registers)
+ */
+acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags);
+
+acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags);
+
+acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags);
+
+/*
+ * hwesleep - sleep/wake support (Extended FADT-V5 sleep registers)
+ */
+void acpi_hw_execute_sleep_method(char *method_name, u32 integer_argument);
+
+acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags);
+
+acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags);
+
+acpi_status acpi_hw_extended_wake(u8 sleep_state, u8 flags);
+
+/*
  * hwvalid - Port I/O with validation
  */
 acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width);
@@ -128,16 +148,4 @@ acpi_status
 acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
 		      acpi_handle root_pci_device, acpi_handle pci_region);
 
-#ifdef	ACPI_FUTURE_USAGE
-/*
- * hwtimer - ACPI Timer prototypes
- */
-acpi_status acpi_get_timer_resolution(u32 * resolution);
-
-acpi_status acpi_get_timer(u32 * ticks);
-
-acpi_status
-acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed);
-#endif				/* ACPI_FUTURE_USAGE */
-
 #endif				/* __ACHWARE_H__ */
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 3f24068837d5..e3922ca20e7f 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -370,6 +370,7 @@ struct acpi_predefined_data {
 /* Defines for Flags field above */
 
 #define ACPI_OBJECT_REPAIRED    1
+#define ACPI_OBJECT_WRAPPED     2
 
 /*
  * Bitmapped return value types
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index ef338a96f5b2..f119f473f71a 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -516,6 +516,12 @@
 
 #endif				/* ACPI_DEBUG_OUTPUT */
 
+#if (!ACPI_REDUCED_HARDWARE)
+#define ACPI_HW_OPTIONAL_FUNCTION(addr)     addr
+#else
+#define ACPI_HW_OPTIONAL_FUNCTION(addr)     NULL
+#endif
+
 /*
  * Some code only gets executed when the debugger is built in.
  * Note that this is entirely independent of whether the
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 2c9e0f049523..9b19d4b86424 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -283,8 +283,9 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
 		      union acpi_operand_object **return_object_ptr);
 
 acpi_status
-acpi_ns_repair_package_list(struct acpi_predefined_data *data,
-			    union acpi_operand_object **obj_desc_ptr);
+acpi_ns_wrap_with_package(struct acpi_predefined_data *data,
+			  union acpi_operand_object *original_object,
+			  union acpi_operand_object **obj_desc_ptr);
 
 acpi_status
 acpi_ns_repair_null_element(struct acpi_predefined_data *data,
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index d5bec304c823..6712965ba8ae 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -67,6 +67,11 @@ acpi_status acpi_tb_resize_root_table_list(void);
 
 acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc);
 
+struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
+						 *table_header,
+						 struct acpi_table_desc
+						 *table_desc);
+
 acpi_status
 acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index);
 
diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c
index 6729ebe2f1e6..07e4dc44f81c 100644
--- a/drivers/acpi/acpica/evevent.c
+++ b/drivers/acpi/acpica/evevent.c
@@ -47,7 +47,7 @@
 
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evevent")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /* Local prototypes */
 static acpi_status acpi_ev_fixed_event_initialize(void);
 
@@ -291,3 +291,5 @@ static u32 acpi_ev_fixed_event_dispatch(u32 event)
 	return ((acpi_gbl_fixed_event_handlers[event].
 		 handler) (acpi_gbl_fixed_event_handlers[event].context));
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c
index 5e5683cb1f0d..cfeab38795d8 100644
--- a/drivers/acpi/acpica/evglock.c
+++ b/drivers/acpi/acpica/evglock.c
@@ -48,7 +48,7 @@
 
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evglock")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /* Local prototypes */
 static u32 acpi_ev_global_lock_handler(void *context);
 
@@ -339,3 +339,5 @@ acpi_status acpi_ev_release_global_lock(void)
 	acpi_os_release_mutex(acpi_gbl_global_lock_mutex->mutex.os_mutex);
 	return_ACPI_STATUS(status);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 9e88cb6fb25e..8ba0e5f17091 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -48,7 +48,7 @@
 
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evgpe")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /* Local prototypes */
 static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context);
 
@@ -766,3 +766,5 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 
 	return_UINT32(ACPI_INTERRUPT_HANDLED);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index be75339cd5dd..23a3ca86b2eb 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -48,7 +48,7 @@
 
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evgpeblk")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /* Local prototypes */
 static acpi_status
 acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
@@ -504,3 +504,5 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 
 	return_ACPI_STATUS(AE_OK);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index adf7494da9db..da0add858f81 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -48,7 +48,7 @@
 
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evgpeinit")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /*
  * Note: History of _PRW support in ACPICA
  *
@@ -440,3 +440,5 @@ acpi_ev_match_gpe_method(acpi_handle obj_handle,
 			  name, gpe_number));
 	return_ACPI_STATUS(AE_OK);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index 25073932aa10..3c43796b8361 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -48,6 +48,7 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evgpeutil")
 
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ev_walk_gpe_list
@@ -374,3 +375,5 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 
 	return_ACPI_STATUS(AE_OK);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index 84966f416463..51ef9f5e002d 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -108,27 +108,30 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
 	ACPI_FUNCTION_NAME(ev_queue_notify_request);
 
 	/*
-	 * For value 3 (Ejection Request), some device method may need to be run.
-	 * For value 2 (Device Wake) if _PRW exists, the _PS0 method may need
-	 *   to be run.
+	 * For value 0x03 (Ejection Request), may need to run a device method.
+	 * For value 0x02 (Device Wake), if _PRW exists, may need to run
+	 *   the _PS0 method.
 	 * For value 0x80 (Status Change) on the power button or sleep button,
-	 *   initiate soft-off or sleep operation?
+	 *   initiate soft-off or sleep operation.
+	 *
+	 * For all cases, simply dispatch the notify to the handler.
 	 */
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Dispatching Notify on [%4.4s] Node %p Value 0x%2.2X (%s)\n",
-			  acpi_ut_get_node_name(node), node, notify_value,
-			  acpi_ut_get_notify_name(notify_value)));
+			  "Dispatching Notify on [%4.4s] (%s) Value 0x%2.2X (%s) Node %p\n",
+			  acpi_ut_get_node_name(node),
+			  acpi_ut_get_type_name(node->type), notify_value,
+			  acpi_ut_get_notify_name(notify_value), node));
 
 	/* Get the notify object attached to the NS Node */
 
 	obj_desc = acpi_ns_get_attached_object(node);
 	if (obj_desc) {
 
-		/* We have the notify object, Get the right handler */
+		/* We have the notify object, Get the correct handler */
 
 		switch (node->type) {
 
-			/* Notify allowed only on these types */
+			/* Notify is allowed only on these types */
 
 		case ACPI_TYPE_DEVICE:
 		case ACPI_TYPE_THERMAL:
@@ -152,7 +155,7 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
 	}
 
 	/*
-	 * If there is any handler to run, schedule the dispatcher.
+	 * If there is a handler to run, schedule the dispatcher.
 	 * Check for:
 	 * 1) Global system notify handler
 	 * 2) Global device notify handler
@@ -270,6 +273,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context)
 	acpi_ut_delete_generic_state(notify_info);
 }
 
+#if (!ACPI_REDUCED_HARDWARE)
 /******************************************************************************
  *
  * FUNCTION:    acpi_ev_terminate
@@ -338,3 +342,5 @@ void acpi_ev_terminate(void)
 	}
 	return_VOID;
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index 26065c612e76..6a57aa2d70d1 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -48,7 +48,7 @@
 
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evsci")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /* Local prototypes */
 static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context);
 
@@ -181,3 +181,5 @@ acpi_status acpi_ev_remove_sci_handler(void)
 
 	return_ACPI_STATUS(status);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 61944e89565a..44bef5744ebb 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -51,222 +51,6 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evxface")
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_install_exception_handler
- *
- * PARAMETERS:  Handler         - Pointer to the handler function for the
- *                                event
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Saves the pointer to the handler function
- *
- ******************************************************************************/
-#ifdef ACPI_FUTURE_USAGE
-acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_install_exception_handler);
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Don't allow two handlers. */
-
-	if (acpi_gbl_exception_handler) {
-		status = AE_ALREADY_EXISTS;
-		goto cleanup;
-	}
-
-	/* Install the handler */
-
-	acpi_gbl_exception_handler = handler;
-
-      cleanup:
-	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
-	return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
-#endif				/*  ACPI_FUTURE_USAGE  */
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_install_global_event_handler
- *
- * PARAMETERS:  Handler         - Pointer to the global event handler function
- *              Context         - Value passed to the handler on each event
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Saves the pointer to the handler function. The global handler
- *              is invoked upon each incoming GPE and Fixed Event. It is
- *              invoked at interrupt level at the time of the event dispatch.
- *              Can be used to update event counters, etc.
- *
- ******************************************************************************/
-acpi_status
-acpi_install_global_event_handler(ACPI_GBL_EVENT_HANDLER handler, void *context)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_install_global_event_handler);
-
-	/* Parameter validation */
-
-	if (!handler) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Don't allow two handlers. */
-
-	if (acpi_gbl_global_event_handler) {
-		status = AE_ALREADY_EXISTS;
-		goto cleanup;
-	}
-
-	acpi_gbl_global_event_handler = handler;
-	acpi_gbl_global_event_handler_context = context;
-
-      cleanup:
-	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
-	return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_global_event_handler)
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_install_fixed_event_handler
- *
- * PARAMETERS:  Event           - Event type to enable.
- *              Handler         - Pointer to the handler function for the
- *                                event
- *              Context         - Value passed to the handler on each GPE
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Saves the pointer to the handler function and then enables the
- *              event.
- *
- ******************************************************************************/
-acpi_status
-acpi_install_fixed_event_handler(u32 event,
-				 acpi_event_handler handler, void *context)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler);
-
-	/* Parameter validation */
-
-	if (event > ACPI_EVENT_MAX) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Don't allow two handlers. */
-
-	if (NULL != acpi_gbl_fixed_event_handlers[event].handler) {
-		status = AE_ALREADY_EXISTS;
-		goto cleanup;
-	}
-
-	/* Install the handler before enabling the event */
-
-	acpi_gbl_fixed_event_handlers[event].handler = handler;
-	acpi_gbl_fixed_event_handlers[event].context = context;
-
-	status = acpi_clear_event(event);
-	if (ACPI_SUCCESS(status))
-		status = acpi_enable_event(event, 0);
-	if (ACPI_FAILURE(status)) {
-		ACPI_WARNING((AE_INFO, "Could not enable fixed event 0x%X",
-			      event));
-
-		/* Remove the handler */
-
-		acpi_gbl_fixed_event_handlers[event].handler = NULL;
-		acpi_gbl_fixed_event_handlers[event].context = NULL;
-	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-				  "Enabled fixed event %X, Handler=%p\n", event,
-				  handler));
-	}
-
-      cleanup:
-	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
-	return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler)
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_remove_fixed_event_handler
- *
- * PARAMETERS:  Event           - Event type to disable.
- *              Handler         - Address of the handler
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Disables the event and unregisters the event handler.
- *
- ******************************************************************************/
-acpi_status
-acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
-{
-	acpi_status status = AE_OK;
-
-	ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler);
-
-	/* Parameter validation */
-
-	if (event > ACPI_EVENT_MAX) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Disable the event before removing the handler */
-
-	status = acpi_disable_event(event, 0);
-
-	/* Always Remove the handler */
-
-	acpi_gbl_fixed_event_handlers[event].handler = NULL;
-	acpi_gbl_fixed_event_handlers[event].context = NULL;
-
-	if (ACPI_FAILURE(status)) {
-		ACPI_WARNING((AE_INFO,
-			      "Could not write to fixed event enable register 0x%X",
-			      event));
-	} else {
-		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n",
-				  event));
-	}
-
-	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
-	return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
 
 /*******************************************************************************
  *
@@ -334,6 +118,7 @@ acpi_add_handler_object(struct acpi_object_notify_handler *parent_obj,
 	return AE_OK;
 }
 
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_notify_handler
@@ -705,6 +490,224 @@ ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler)
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_install_exception_handler
+ *
+ * PARAMETERS:  Handler         - Pointer to the handler function for the
+ *                                event
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Saves the pointer to the handler function
+ *
+ ******************************************************************************/
+#ifdef ACPI_FUTURE_USAGE
+acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_install_exception_handler);
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Don't allow two handlers. */
+
+	if (acpi_gbl_exception_handler) {
+		status = AE_ALREADY_EXISTS;
+		goto cleanup;
+	}
+
+	/* Install the handler */
+
+	acpi_gbl_exception_handler = handler;
+
+      cleanup:
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
+#endif				/*  ACPI_FUTURE_USAGE  */
+
+#if (!ACPI_REDUCED_HARDWARE)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_install_global_event_handler
+ *
+ * PARAMETERS:  Handler         - Pointer to the global event handler function
+ *              Context         - Value passed to the handler on each event
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Saves the pointer to the handler function. The global handler
+ *              is invoked upon each incoming GPE and Fixed Event. It is
+ *              invoked at interrupt level at the time of the event dispatch.
+ *              Can be used to update event counters, etc.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_global_event_handler(ACPI_GBL_EVENT_HANDLER handler, void *context)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_install_global_event_handler);
+
+	/* Parameter validation */
+
+	if (!handler) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Don't allow two handlers. */
+
+	if (acpi_gbl_global_event_handler) {
+		status = AE_ALREADY_EXISTS;
+		goto cleanup;
+	}
+
+	acpi_gbl_global_event_handler = handler;
+	acpi_gbl_global_event_handler_context = context;
+
+      cleanup:
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_global_event_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_install_fixed_event_handler
+ *
+ * PARAMETERS:  Event           - Event type to enable.
+ *              Handler         - Pointer to the handler function for the
+ *                                event
+ *              Context         - Value passed to the handler on each GPE
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Saves the pointer to the handler function and then enables the
+ *              event.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_install_fixed_event_handler(u32 event,
+				 acpi_event_handler handler, void *context)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler);
+
+	/* Parameter validation */
+
+	if (event > ACPI_EVENT_MAX) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Don't allow two handlers. */
+
+	if (NULL != acpi_gbl_fixed_event_handlers[event].handler) {
+		status = AE_ALREADY_EXISTS;
+		goto cleanup;
+	}
+
+	/* Install the handler before enabling the event */
+
+	acpi_gbl_fixed_event_handlers[event].handler = handler;
+	acpi_gbl_fixed_event_handlers[event].context = context;
+
+	status = acpi_clear_event(event);
+	if (ACPI_SUCCESS(status))
+		status = acpi_enable_event(event, 0);
+	if (ACPI_FAILURE(status)) {
+		ACPI_WARNING((AE_INFO, "Could not enable fixed event 0x%X",
+			      event));
+
+		/* Remove the handler */
+
+		acpi_gbl_fixed_event_handlers[event].handler = NULL;
+		acpi_gbl_fixed_event_handlers[event].context = NULL;
+	} else {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+				  "Enabled fixed event %X, Handler=%p\n", event,
+				  handler));
+	}
+
+      cleanup:
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_remove_fixed_event_handler
+ *
+ * PARAMETERS:  Event           - Event type to disable.
+ *              Handler         - Address of the handler
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Disables the event and unregisters the event handler.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler)
+{
+	acpi_status status = AE_OK;
+
+	ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler);
+
+	/* Parameter validation */
+
+	if (event > ACPI_EVENT_MAX) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Disable the event before removing the handler */
+
+	status = acpi_disable_event(event, 0);
+
+	/* Always Remove the handler */
+
+	acpi_gbl_fixed_event_handlers[event].handler = NULL;
+	acpi_gbl_fixed_event_handlers[event].context = NULL;
+
+	if (ACPI_FAILURE(status)) {
+		ACPI_WARNING((AE_INFO,
+			      "Could not write to fixed event enable register 0x%X",
+			      event));
+	} else {
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabled fixed event %X\n",
+				  event));
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler)
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_install_gpe_handler
  *
  * PARAMETERS:  gpe_device      - Namespace node for the GPE (NULL for FADT
@@ -984,3 +987,4 @@ acpi_status acpi_release_global_lock(u32 handle)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_release_global_lock)
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 1768bbec1002..77cee5a5e891 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -49,6 +49,7 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evxfevnt")
 
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enable
@@ -352,3 +353,4 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_event_status)
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 33388fd69df4..86f9b343ebd4 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -50,6 +50,7 @@
 #define _COMPONENT          ACPI_EVENTS
 ACPI_MODULE_NAME("evxfgpe")
 
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /******************************************************************************
  *
  * FUNCTION:    acpi_update_all_gpes
@@ -695,3 +696,4 @@ acpi_get_gpe_device(u32 index, acpi_handle *gpe_device)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_gpe_device)
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/hwacpi.c b/drivers/acpi/acpica/hwacpi.c
index d21ec5f0b3a9..d0b9ed5df97e 100644
--- a/drivers/acpi/acpica/hwacpi.c
+++ b/drivers/acpi/acpica/hwacpi.c
@@ -48,6 +48,7 @@
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwacpi")
 
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /******************************************************************************
  *
  * FUNCTION:    acpi_hw_set_mode
@@ -166,3 +167,5 @@ u32 acpi_hw_get_mode(void)
 		return_UINT32(ACPI_SYS_MODE_LEGACY);
 	}
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
new file mode 100644
index 000000000000..29e859293edd
--- /dev/null
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -0,0 +1,247 @@
+/******************************************************************************
+ *
+ * Name: hwesleep.c - ACPI Hardware Sleep/Wake Support functions for the
+ *                    extended FADT-V5 sleep registers.
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+
+#define _COMPONENT          ACPI_HARDWARE
+ACPI_MODULE_NAME("hwesleep")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_execute_sleep_method
+ *
+ * PARAMETERS:  method_pathname     - Pathname of method to execute
+ *              integer_argument    - Argument to pass to the method
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Execute a sleep/wake related method with one integer argument
+ *              and no return value.
+ *
+ ******************************************************************************/
+void acpi_hw_execute_sleep_method(char *method_pathname, u32 integer_argument)
+{
+	struct acpi_object_list arg_list;
+	union acpi_object arg;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(hw_execute_sleep_method);
+
+	/* One argument, integer_argument; No return value expected */
+
+	arg_list.count = 1;
+	arg_list.pointer = &arg;
+	arg.type = ACPI_TYPE_INTEGER;
+	arg.integer.value = (u64)integer_argument;
+
+	status = acpi_evaluate_object(NULL, method_pathname, &arg_list, NULL);
+	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+		ACPI_EXCEPTION((AE_INFO, status, "While executing method %s",
+				method_pathname));
+	}
+
+	return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_extended_sleep
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state to enter
+ *              Flags               - ACPI_EXECUTE_GTS to run optional method
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Enter a system sleep state via the extended FADT sleep
+ *              registers (V5 FADT).
+ *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
+{
+	acpi_status status;
+	u8 sleep_type_value;
+	u64 sleep_status;
+
+	ACPI_FUNCTION_TRACE(hw_extended_sleep);
+
+	/* Extended sleep registers must be valid */
+
+	if (!acpi_gbl_FADT.sleep_control.address ||
+	    !acpi_gbl_FADT.sleep_status.address) {
+		return_ACPI_STATUS(AE_NOT_EXIST);
+	}
+
+	/* Clear wake status (WAK_STS) */
+
+	status = acpi_write(ACPI_X_WAKE_STATUS, &acpi_gbl_FADT.sleep_status);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	acpi_gbl_system_awake_and_running = FALSE;
+
+	/* Optionally execute _GTS (Going To Sleep) */
+
+	if (flags & ACPI_EXECUTE_GTS) {
+		acpi_hw_execute_sleep_method(METHOD_PATHNAME__GTS, sleep_state);
+	}
+
+	/* Flush caches, as per ACPI specification */
+
+	ACPI_FLUSH_CPU_CACHE();
+
+	/*
+	 * Set the SLP_TYP and SLP_EN bits.
+	 *
+	 * Note: We only use the first value returned by the \_Sx method
+	 * (acpi_gbl_sleep_type_a) - As per ACPI specification.
+	 */
+	ACPI_DEBUG_PRINT((ACPI_DB_INIT,
+			  "Entering sleep state [S%u]\n", sleep_state));
+
+	sleep_type_value =
+	    ((acpi_gbl_sleep_type_a << ACPI_X_SLEEP_TYPE_POSITION) &
+	     ACPI_X_SLEEP_TYPE_MASK);
+
+	status = acpi_write((sleep_type_value | ACPI_X_SLEEP_ENABLE),
+			    &acpi_gbl_FADT.sleep_control);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Wait for transition back to Working State */
+
+	do {
+		status = acpi_read(&sleep_status, &acpi_gbl_FADT.sleep_status);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
+
+	} while (!(((u8)sleep_status) & ACPI_X_WAKE_STATUS));
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_extended_wake_prep
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state we just exited
+ *              Flags               - ACPI_EXECUTE_BFS to run optional method
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform first part of OS-independent ACPI cleanup after
+ *              a sleep. Called with interrupts ENABLED.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
+{
+	acpi_status status;
+	u8 sleep_type_value;
+
+	ACPI_FUNCTION_TRACE(hw_extended_wake_prep);
+
+	status = acpi_get_sleep_type_data(ACPI_STATE_S0,
+					  &acpi_gbl_sleep_type_a,
+					  &acpi_gbl_sleep_type_b);
+	if (ACPI_SUCCESS(status)) {
+		sleep_type_value =
+		    ((acpi_gbl_sleep_type_a << ACPI_X_SLEEP_TYPE_POSITION) &
+		     ACPI_X_SLEEP_TYPE_MASK);
+
+		(void)acpi_write((sleep_type_value | ACPI_X_SLEEP_ENABLE),
+				 &acpi_gbl_FADT.sleep_control);
+	}
+
+	/* Optionally execute _BFS (Back From Sleep) */
+
+	if (flags & ACPI_EXECUTE_BFS) {
+		acpi_hw_execute_sleep_method(METHOD_PATHNAME__BFS, sleep_state);
+	}
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_extended_wake
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state we just exited
+ *              Flags               - Reserved, set to zero
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
+ *              Called with interrupts ENABLED.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_hw_extended_wake(u8 sleep_state, u8 flags)
+{
+	ACPI_FUNCTION_TRACE(hw_extended_wake);
+
+	/* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
+
+	acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
+
+	/* Execute the wake methods */
+
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WAKING);
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__WAK, sleep_state);
+
+	/*
+	 * Some BIOS code assumes that WAK_STS will be cleared on resume
+	 * and use it to determine whether the system is rebooting or
+	 * resuming. Clear WAK_STS for compatibility.
+	 */
+	(void)acpi_write(ACPI_X_WAKE_STATUS, &acpi_gbl_FADT.sleep_status);
+	acpi_gbl_system_awake_and_running = TRUE;
+
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING);
+	return_ACPI_STATUS(AE_OK);
+}
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 1a6894afef79..25bd28c4ae8d 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -48,7 +48,7 @@
 
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwgpe")
-
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /* Local prototypes */
 static acpi_status
 acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
@@ -479,3 +479,5 @@ acpi_status acpi_hw_enable_all_wakeup_gpes(void)
 	status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block, NULL);
 	return_ACPI_STATUS(status);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index 4ea4eeb51bfd..6b6c83b87b52 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -51,6 +51,7 @@
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwregs")
 
+#if (!ACPI_REDUCED_HARDWARE)
 /* Local Prototypes */
 static acpi_status
 acpi_hw_read_multiple(u32 *value,
@@ -62,6 +63,8 @@ acpi_hw_write_multiple(u32 value,
 		       struct acpi_generic_address *register_a,
 		       struct acpi_generic_address *register_b);
 
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_hw_validate_register
@@ -154,6 +157,7 @@ acpi_hw_validate_register(struct acpi_generic_address *reg,
 acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 {
 	u64 address;
+	u64 value64;
 	acpi_status status;
 
 	ACPI_FUNCTION_NAME(hw_read);
@@ -175,7 +179,9 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 	 */
 	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
 		status = acpi_os_read_memory((acpi_physical_address)
-					     address, value, reg->bit_width);
+					     address, &value64, reg->bit_width);
+
+		*value = (u32)value64;
 	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
 		status = acpi_hw_read_port((acpi_io_address)
@@ -225,7 +231,8 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
 	 */
 	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
 		status = acpi_os_write_memory((acpi_physical_address)
-					      address, value, reg->bit_width);
+					      address, (u64)value,
+					      reg->bit_width);
 	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
 		status = acpi_hw_write_port((acpi_io_address)
@@ -240,6 +247,7 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
 	return (status);
 }
 
+#if (!ACPI_REDUCED_HARDWARE)
 /*******************************************************************************
  *
  * FUNCTION:    acpi_hw_clear_acpi_status
@@ -285,7 +293,7 @@ exit:
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_hw_get_register_bit_mask
+ * FUNCTION:    acpi_hw_get_bit_register_info
  *
  * PARAMETERS:  register_id         - Index of ACPI Register to access
  *
@@ -658,3 +666,5 @@ acpi_hw_write_multiple(u32 value,
 
 	return (status);
 }
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 3c4a922a9fc2..0ed85cac3231 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -1,7 +1,7 @@
-
 /******************************************************************************
  *
- * Name: hwsleep.c - ACPI Hardware Sleep/Wake Interface
+ * Name: hwsleep.c - ACPI Hardware Sleep/Wake Support functions for the
+ *                   original/legacy sleep/PM registers.
  *
  *****************************************************************************/
 
@@ -43,213 +43,37 @@
  */
 
 #include <acpi/acpi.h>
+#include <linux/acpi.h>
 #include "accommon.h"
-#include "actables.h"
-#include <linux/tboot.h>
 #include <linux/module.h>
 
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwsleep")
 
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /*******************************************************************************
  *
- * FUNCTION:    acpi_set_firmware_waking_vector
- *
- * PARAMETERS:  physical_address    - 32-bit physical address of ACPI real mode
- *                                    entry point.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
- *
- ******************************************************************************/
-acpi_status
-acpi_set_firmware_waking_vector(u32 physical_address)
-{
-	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
-
-
-	/*
-	 * According to the ACPI specification 2.0c and later, the 64-bit
-	 * waking vector should be cleared and the 32-bit waking vector should
-	 * be used, unless we want the wake-up code to be called by the BIOS in
-	 * Protected Mode.  Some systems (for example HP dv5-1004nr) are known
-	 * to fail to resume if the 64-bit vector is used.
-	 */
-
-	/* Set the 32-bit vector */
-
-	acpi_gbl_FACS->firmware_waking_vector = physical_address;
-
-	/* Clear the 64-bit vector if it exists */
-
-	if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
-		acpi_gbl_FACS->xfirmware_waking_vector = 0;
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
-
-#if ACPI_MACHINE_WIDTH == 64
-/*******************************************************************************
- *
- * FUNCTION:    acpi_set_firmware_waking_vector64
- *
- * PARAMETERS:  physical_address    - 64-bit physical address of ACPI protected
- *                                    mode entry point.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
- *              it exists in the table. This function is intended for use with
- *              64-bit host operating systems.
- *
- ******************************************************************************/
-acpi_status
-acpi_set_firmware_waking_vector64(u64 physical_address)
-{
-	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
-
-
-	/* Determine if the 64-bit vector actually exists */
-
-	if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
-	}
-
-	/* Clear 32-bit vector, set the 64-bit X_ vector */
-
-	acpi_gbl_FACS->firmware_waking_vector = 0;
-	acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
-#endif
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_enter_sleep_state_prep
- *
- * PARAMETERS:  sleep_state         - Which sleep state to enter
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Prepare to enter a system sleep state (see ACPI 2.0 spec p 231)
- *              This function must execute with interrupts enabled.
- *              We break sleeping into 2 stages so that OSPM can handle
- *              various OS-specific tasks between the two steps.
- *
- ******************************************************************************/
-acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
-{
-	acpi_status status;
-	struct acpi_object_list arg_list;
-	union acpi_object arg;
-
-	ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
-
-	/* _PSW methods could be run here to enable wake-on keyboard, LAN, etc. */
-
-	status = acpi_get_sleep_type_data(sleep_state,
-					  &acpi_gbl_sleep_type_a,
-					  &acpi_gbl_sleep_type_b);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Setup parameter object */
-
-	arg_list.count = 1;
-	arg_list.pointer = &arg;
-
-	arg.type = ACPI_TYPE_INTEGER;
-	arg.integer.value = sleep_state;
-
-	/* Run the _PTS method */
-
-	status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Setup the argument to _SST */
-
-	switch (sleep_state) {
-	case ACPI_STATE_S0:
-		arg.integer.value = ACPI_SST_WORKING;
-		break;
-
-	case ACPI_STATE_S1:
-	case ACPI_STATE_S2:
-	case ACPI_STATE_S3:
-		arg.integer.value = ACPI_SST_SLEEPING;
-		break;
-
-	case ACPI_STATE_S4:
-		arg.integer.value = ACPI_SST_SLEEP_CONTEXT;
-		break;
-
-	default:
-		arg.integer.value = ACPI_SST_INDICATOR_OFF;	/* Default is off */
-		break;
-	}
-
-	/*
-	 * Set the system indicators to show the desired sleep state.
-	 * _SST is an optional method (return no error if not found)
-	 */
-	status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"While executing method _SST"));
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
-
-static unsigned int gts, bfs;
-module_param(gts, uint, 0644);
-module_param(bfs, uint, 0644);
-MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
-MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_enter_sleep_state
+ * FUNCTION:    acpi_hw_legacy_sleep
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
+ *              Flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
+ * DESCRIPTION: Enter a system sleep state via the legacy FADT PM registers
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
+acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
 {
-	u32 pm1a_control;
-	u32 pm1b_control;
 	struct acpi_bit_register_info *sleep_type_reg_info;
 	struct acpi_bit_register_info *sleep_enable_reg_info;
+	u32 pm1a_control;
+	u32 pm1b_control;
 	u32 in_value;
-	struct acpi_object_list arg_list;
-	union acpi_object arg;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
-
-	if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
-	    (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
-		ACPI_ERROR((AE_INFO, "Sleep values out of range: A=0x%X B=0x%X",
-			    acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b));
-		return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
-	}
+	ACPI_FUNCTION_TRACE(hw_legacy_sleep);
 
 	sleep_type_reg_info =
 	    acpi_hw_get_bit_register_info(ACPI_BITREG_SLEEP_TYPE);
@@ -271,6 +95,18 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 		return_ACPI_STATUS(status);
 	}
 
+	if (sleep_state != ACPI_STATE_S5) {
+		/*
+		 * Disable BM arbitration. This feature is contained within an
+		 * optional register (PM2 Control), so ignore a BAD_ADDRESS
+		 * exception.
+		 */
+		status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 1);
+		if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
+			return_ACPI_STATUS(status);
+		}
+	}
+
 	/*
 	 * 1) Disable/Clear all GPEs
 	 * 2) Enable all wakeup GPEs
@@ -286,18 +122,10 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 		return_ACPI_STATUS(status);
 	}
 
-	if (gts) {
-		/* Execute the _GTS method */
-
-		arg_list.count = 1;
-		arg_list.pointer = &arg;
-		arg.type = ACPI_TYPE_INTEGER;
-		arg.integer.value = sleep_state;
+	/* Optionally execute _GTS (Going To Sleep) */
 
-		status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
-		if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-			return_ACPI_STATUS(status);
-		}
+	if (flags & ACPI_EXECUTE_GTS) {
+		acpi_hw_execute_sleep_method(METHOD_PATHNAME__GTS, sleep_state);
 	}
 
 	/* Get current value of PM1A control */
@@ -344,8 +172,12 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 
 	ACPI_FLUSH_CPU_CACHE();
 
-	tboot_sleep(sleep_state, pm1a_control, pm1b_control);
-
+	status = acpi_os_prepare_sleep(sleep_state, pm1a_control,
+				       pm1b_control);
+	if (ACPI_SKIP(status))
+		return_ACPI_STATUS(AE_OK);
+	if (ACPI_FAILURE(status))
+		return_ACPI_STATUS(status);
 	/* Write #2: Write both SLP_TYP + SLP_EN */
 
 	status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control);
@@ -375,114 +207,44 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 		}
 	}
 
-	/* Wait until we enter sleep state */
-
-	do {
-		status = acpi_read_bit_register(ACPI_BITREG_WAKE_STATUS,
-						    &in_value);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-
-		/* Spin until we wake */
-
-	} while (!in_value);
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_enter_sleep_state_s4bios
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Perform a S4 bios request.
- *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
- *
- ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
-{
-	u32 in_value;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
-
-	/* Clear the wake status bit (PM1) */
-
-	status =
-	    acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, ACPI_CLEAR_STATUS);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	status = acpi_hw_clear_acpi_status();
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * 1) Disable/Clear all GPEs
-	 * 2) Enable all wakeup GPEs
-	 */
-	status = acpi_hw_disable_all_gpes();
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-	acpi_gbl_system_awake_and_running = FALSE;
-
-	status = acpi_hw_enable_all_wakeup_gpes();
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	ACPI_FLUSH_CPU_CACHE();
-
-	status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
-				    (u32) acpi_gbl_FADT.S4bios_request, 8);
+	/* Wait for transition back to Working State */
 
 	do {
-		acpi_os_stall(1000);
 		status =
 		    acpi_read_bit_register(ACPI_BITREG_WAKE_STATUS, &in_value);
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
 		}
+
 	} while (!in_value);
 
 	return_ACPI_STATUS(AE_OK);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
-
 /*******************************************************************************
  *
- * FUNCTION:    acpi_leave_sleep_state_prep
+ * FUNCTION:    acpi_hw_legacy_wake_prep
  *
- * PARAMETERS:  sleep_state         - Which sleep state we are exiting
+ * PARAMETERS:  sleep_state         - Which sleep state we just exited
+ *              Flags               - ACPI_EXECUTE_BFS to run optional method
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
  *              sleep.
- *              Called with interrupts DISABLED.
+ *              Called with interrupts ENABLED.
  *
  ******************************************************************************/
-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
+
+acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
 {
-	struct acpi_object_list arg_list;
-	union acpi_object arg;
 	acpi_status status;
 	struct acpi_bit_register_info *sleep_type_reg_info;
 	struct acpi_bit_register_info *sleep_enable_reg_info;
 	u32 pm1a_control;
 	u32 pm1b_control;
 
-	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
+	ACPI_FUNCTION_TRACE(hw_legacy_wake_prep);
 
 	/*
 	 * Set SLP_TYPE and SLP_EN to state S0.
@@ -525,27 +287,20 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
 		}
 	}
 
-	if (bfs) {
-		/* Execute the _BFS method */
+	/* Optionally execute _BFS (Back From Sleep) */
 
-		arg_list.count = 1;
-		arg_list.pointer = &arg;
-		arg.type = ACPI_TYPE_INTEGER;
-		arg.integer.value = sleep_state;
-
-		status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
-		if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-			ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
-		}
+	if (flags & ACPI_EXECUTE_BFS) {
+		acpi_hw_execute_sleep_method(METHOD_PATHNAME__BFS, sleep_state);
 	}
 	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_leave_sleep_state
+ * FUNCTION:    acpi_hw_legacy_wake
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
+ *              Flags               - Reserved, set to zero
  *
  * RETURN:      Status
  *
@@ -553,31 +308,17 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
  *              Called with interrupts ENABLED.
  *
  ******************************************************************************/
-acpi_status acpi_leave_sleep_state(u8 sleep_state)
+
+acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags)
 {
-	struct acpi_object_list arg_list;
-	union acpi_object arg;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
+	ACPI_FUNCTION_TRACE(hw_legacy_wake);
 
 	/* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
 
 	acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
-
-	/* Setup parameter object */
-
-	arg_list.count = 1;
-	arg_list.pointer = &arg;
-	arg.type = ACPI_TYPE_INTEGER;
-
-	/* Ignore any errors from these methods */
-
-	arg.integer.value = ACPI_SST_WAKING;
-	status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
-	}
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WAKING);
 
 	/*
 	 * GPEs must be enabled before _WAK is called as GPEs
@@ -591,46 +332,50 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
+
 	status = acpi_hw_enable_all_runtime_gpes();
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
 
-	arg.integer.value = sleep_state;
-	status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
-	}
-	/* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
+	/*
+	 * Now we can execute _WAK, etc. Some machines require that the GPEs
+	 * are enabled before the wake methods are executed.
+	 */
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__WAK, sleep_state);
 
 	/*
-	 * Some BIOSes assume that WAK_STS will be cleared on resume and use
-	 * it to determine whether the system is rebooting or resuming. Clear
-	 * it for compatibility.
+	 * Some BIOS code assumes that WAK_STS will be cleared on resume
+	 * and use it to determine whether the system is rebooting or
+	 * resuming. Clear WAK_STS for compatibility.
 	 */
 	acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, 1);
-
 	acpi_gbl_system_awake_and_running = TRUE;
 
 	/* Enable power button */
 
 	(void)
 	    acpi_write_bit_register(acpi_gbl_fixed_event_info
-			      [ACPI_EVENT_POWER_BUTTON].
-			      enable_register_id, ACPI_ENABLE_EVENT);
+				    [ACPI_EVENT_POWER_BUTTON].
+				    enable_register_id, ACPI_ENABLE_EVENT);
 
 	(void)
 	    acpi_write_bit_register(acpi_gbl_fixed_event_info
-			      [ACPI_EVENT_POWER_BUTTON].
-			      status_register_id, ACPI_CLEAR_STATUS);
+				    [ACPI_EVENT_POWER_BUTTON].
+				    status_register_id, ACPI_CLEAR_STATUS);
 
-	arg.integer.value = ACPI_SST_WORKING;
-	status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
+	/*
+	 * Enable BM arbitration. This feature is contained within an
+	 * optional register (PM2 Control), so ignore a BAD_ADDRESS
+	 * exception.
+	 */
+	status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 0);
+	if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) {
+		return_ACPI_STATUS(status);
 	}
 
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING);
 	return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index d4973d9da9f1..f1b2c3b94cac 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -49,6 +49,7 @@
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwtimer")
 
+#if (!ACPI_REDUCED_HARDWARE)	/* Entire module */
 /******************************************************************************
  *
  * FUNCTION:    acpi_get_timer_resolution
@@ -187,3 +188,4 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_timer_duration)
+#endif				/* !ACPI_REDUCED_HARDWARE */
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index 9d38eb6c0d0b..a716fede4f25 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -138,11 +138,6 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 		return (status);
 	}
 
-	width = reg->bit_width;
-	if (width == 64) {
-		width = 32;	/* Break into two 32-bit transfers */
-	}
-
 	/* Initialize entire 64-bit return value to zero */
 
 	*return_value = 0;
@@ -154,24 +149,17 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 	 */
 	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
 		status = acpi_os_read_memory((acpi_physical_address)
-					     address, &value, width);
+					     address, return_value,
+					     reg->bit_width);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
-		*return_value = value;
-
-		if (reg->bit_width == 64) {
-
-			/* Read the top 32 bits */
+	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
-			status = acpi_os_read_memory((acpi_physical_address)
-						     (address + 4), &value, 32);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-			*return_value |= ((u64)value << 32);
+		width = reg->bit_width;
+		if (width == 64) {
+			width = 32;	/* Break into two 32-bit transfers */
 		}
-	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
 		status = acpi_hw_read_port((acpi_io_address)
 					   address, &value, width);
@@ -231,32 +219,22 @@ acpi_status acpi_write(u64 value, struct acpi_generic_address *reg)
 		return (status);
 	}
 
-	width = reg->bit_width;
-	if (width == 64) {
-		width = 32;	/* Break into two 32-bit transfers */
-	}
-
 	/*
 	 * Two address spaces supported: Memory or IO. PCI_Config is
 	 * not supported here because the GAS structure is insufficient
 	 */
 	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
 		status = acpi_os_write_memory((acpi_physical_address)
-					      address, ACPI_LODWORD(value),
-					      width);
+					      address, value, reg->bit_width);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
+	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
-		if (reg->bit_width == 64) {
-			status = acpi_os_write_memory((acpi_physical_address)
-						      (address + 4),
-						      ACPI_HIDWORD(value), 32);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
+		width = reg->bit_width;
+		if (width == 64) {
+			width = 32;	/* Break into two 32-bit transfers */
 		}
-	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
 		status = acpi_hw_write_port((acpi_io_address)
 					    address, ACPI_LODWORD(value),
@@ -286,6 +264,7 @@ acpi_status acpi_write(u64 value, struct acpi_generic_address *reg)
 
 ACPI_EXPORT_SYMBOL(acpi_write)
 
+#if (!ACPI_REDUCED_HARDWARE)
 /*******************************************************************************
  *
  * FUNCTION:    acpi_read_bit_register
@@ -453,7 +432,7 @@ unlock_and_exit:
 }
 
 ACPI_EXPORT_SYMBOL(acpi_write_bit_register)
-
+#endif				/* !ACPI_REDUCED_HARDWARE */
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_sleep_type_data
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
new file mode 100644
index 000000000000..762d059bb508
--- /dev/null
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -0,0 +1,431 @@
+/******************************************************************************
+ *
+ * Name: hwxfsleep.c - ACPI Hardware Sleep/Wake External Interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include <linux/module.h>
+
+#define _COMPONENT          ACPI_HARDWARE
+ACPI_MODULE_NAME("hwxfsleep")
+
+/* Local prototypes */
+static acpi_status
+acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id);
+
+/*
+ * Dispatch table used to efficiently branch to the various sleep
+ * functions.
+ */
+#define ACPI_SLEEP_FUNCTION_ID         0
+#define ACPI_WAKE_PREP_FUNCTION_ID     1
+#define ACPI_WAKE_FUNCTION_ID          2
+
+/* Legacy functions are optional, based upon ACPI_REDUCED_HARDWARE */
+
+static struct acpi_sleep_functions acpi_sleep_dispatch[] = {
+	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_sleep),
+	 acpi_hw_extended_sleep},
+	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake_prep),
+	 acpi_hw_extended_wake_prep},
+	{ACPI_HW_OPTIONAL_FUNCTION(acpi_hw_legacy_wake), acpi_hw_extended_wake}
+};
+
+/*
+ * These functions are removed for the ACPI_REDUCED_HARDWARE case:
+ *      acpi_set_firmware_waking_vector
+ *      acpi_set_firmware_waking_vector64
+ *      acpi_enter_sleep_state_s4bios
+ */
+
+#if (!ACPI_REDUCED_HARDWARE)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_set_firmware_waking_vector
+ *
+ * PARAMETERS:  physical_address    - 32-bit physical address of ACPI real mode
+ *                                    entry point.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Sets the 32-bit firmware_waking_vector field of the FACS
+ *
+ ******************************************************************************/
+
+acpi_status acpi_set_firmware_waking_vector(u32 physical_address)
+{
+	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector);
+
+
+	/*
+	 * According to the ACPI specification 2.0c and later, the 64-bit
+	 * waking vector should be cleared and the 32-bit waking vector should
+	 * be used, unless we want the wake-up code to be called by the BIOS in
+	 * Protected Mode.  Some systems (for example HP dv5-1004nr) are known
+	 * to fail to resume if the 64-bit vector is used.
+	 */
+
+	/* Set the 32-bit vector */
+
+	acpi_gbl_FACS->firmware_waking_vector = physical_address;
+
+	/* Clear the 64-bit vector if it exists */
+
+	if ((acpi_gbl_FACS->length > 32) && (acpi_gbl_FACS->version >= 1)) {
+		acpi_gbl_FACS->xfirmware_waking_vector = 0;
+	}
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector)
+
+#if ACPI_MACHINE_WIDTH == 64
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_set_firmware_waking_vector64
+ *
+ * PARAMETERS:  physical_address    - 64-bit physical address of ACPI protected
+ *                                    mode entry point.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Sets the 64-bit X_firmware_waking_vector field of the FACS, if
+ *              it exists in the table. This function is intended for use with
+ *              64-bit host operating systems.
+ *
+ ******************************************************************************/
+acpi_status acpi_set_firmware_waking_vector64(u64 physical_address)
+{
+	ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector64);
+
+
+	/* Determine if the 64-bit vector actually exists */
+
+	if ((acpi_gbl_FACS->length <= 32) || (acpi_gbl_FACS->version < 1)) {
+		return_ACPI_STATUS(AE_NOT_EXIST);
+	}
+
+	/* Clear 32-bit vector, set the 64-bit X_ vector */
+
+	acpi_gbl_FACS->firmware_waking_vector = 0;
+	acpi_gbl_FACS->xfirmware_waking_vector = physical_address;
+	return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_enter_sleep_state_s4bios
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform a S4 bios request.
+ *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
+{
+	u32 in_value;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios);
+
+	/* Clear the wake status bit (PM1) */
+
+	status =
+	    acpi_write_bit_register(ACPI_BITREG_WAKE_STATUS, ACPI_CLEAR_STATUS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	status = acpi_hw_clear_acpi_status();
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/*
+	 * 1) Disable/Clear all GPEs
+	 * 2) Enable all wakeup GPEs
+	 */
+	status = acpi_hw_disable_all_gpes();
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+	acpi_gbl_system_awake_and_running = FALSE;
+
+	status = acpi_hw_enable_all_wakeup_gpes();
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	ACPI_FLUSH_CPU_CACHE();
+
+	status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
+				    (u32)acpi_gbl_FADT.S4bios_request, 8);
+
+	do {
+		acpi_os_stall(1000);
+		status =
+		    acpi_read_bit_register(ACPI_BITREG_WAKE_STATUS, &in_value);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
+	} while (!in_value);
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
+#endif				/* !ACPI_REDUCED_HARDWARE */
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_hw_sleep_dispatch
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state to enter/exit
+ *              function_id         - Sleep, wake_prep, or Wake
+ *
+ * RETURN:      Status from the invoked sleep handling function.
+ *
+ * DESCRIPTION: Dispatch a sleep/wake request to the appropriate handling
+ *              function.
+ *
+ ******************************************************************************/
+static acpi_status
+acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
+{
+	acpi_status status;
+	struct acpi_sleep_functions *sleep_functions =
+	    &acpi_sleep_dispatch[function_id];
+
+#if (!ACPI_REDUCED_HARDWARE)
+
+	/*
+	 * If the Hardware Reduced flag is set (from the FADT), we must
+	 * use the extended sleep registers
+	 */
+	if (acpi_gbl_reduced_hardware || acpi_gbl_FADT.sleep_control.address) {
+		status = sleep_functions->extended_function(sleep_state, flags);
+	} else {
+		/* Legacy sleep */
+
+		status = sleep_functions->legacy_function(sleep_state, flags);
+	}
+
+	return (status);
+
+#else
+	/*
+	 * For the case where reduced-hardware-only code is being generated,
+	 * we know that only the extended sleep registers are available
+	 */
+	status = sleep_functions->extended_function(sleep_state, flags);
+	return (status);
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_enter_sleep_state_prep
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state to enter
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Prepare to enter a system sleep state.
+ *              This function must execute with interrupts enabled.
+ *              We break sleeping into 2 stages so that OSPM can handle
+ *              various OS-specific tasks between the two steps.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
+{
+	acpi_status status;
+	struct acpi_object_list arg_list;
+	union acpi_object arg;
+	u32 sst_value;
+
+	ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep);
+
+	status = acpi_get_sleep_type_data(sleep_state,
+					  &acpi_gbl_sleep_type_a,
+					  &acpi_gbl_sleep_type_b);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Execute the _PTS method (Prepare To Sleep) */
+
+	arg_list.count = 1;
+	arg_list.pointer = &arg;
+	arg.type = ACPI_TYPE_INTEGER;
+	arg.integer.value = sleep_state;
+
+	status =
+	    acpi_evaluate_object(NULL, METHOD_PATHNAME__PTS, &arg_list, NULL);
+	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Setup the argument to the _SST method (System STatus) */
+
+	switch (sleep_state) {
+	case ACPI_STATE_S0:
+		sst_value = ACPI_SST_WORKING;
+		break;
+
+	case ACPI_STATE_S1:
+	case ACPI_STATE_S2:
+	case ACPI_STATE_S3:
+		sst_value = ACPI_SST_SLEEPING;
+		break;
+
+	case ACPI_STATE_S4:
+		sst_value = ACPI_SST_SLEEP_CONTEXT;
+		break;
+
+	default:
+		sst_value = ACPI_SST_INDICATOR_OFF;	/* Default is off */
+		break;
+	}
+
+	/*
+	 * Set the system indicators to show the desired sleep state.
+	 * _SST is an optional method (return no error if not found)
+	 */
+	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, sst_value);
+	return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_enter_sleep_state
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state to enter
+ *              Flags               - ACPI_EXECUTE_GTS to run optional method
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
+ *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
+ *
+ ******************************************************************************/
+acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state, u8 flags)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
+
+	if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) ||
+	    (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) {
+		ACPI_ERROR((AE_INFO, "Sleep values out of range: A=0x%X B=0x%X",
+			    acpi_gbl_sleep_type_a, acpi_gbl_sleep_type_b));
+		return_ACPI_STATUS(AE_AML_OPERAND_VALUE);
+	}
+
+	status =
+	    acpi_hw_sleep_dispatch(sleep_state, flags, ACPI_SLEEP_FUNCTION_ID);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_leave_sleep_state_prep
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state we are exiting
+ *              Flags               - ACPI_EXECUTE_BFS to run optional method
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
+ *              sleep.
+ *              Called with interrupts DISABLED.
+ *
+ ******************************************************************************/
+acpi_status acpi_leave_sleep_state_prep(u8 sleep_state, u8 flags)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
+
+	status =
+	    acpi_hw_sleep_dispatch(sleep_state, flags,
+				   ACPI_WAKE_PREP_FUNCTION_ID);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state_prep)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_leave_sleep_state
+ *
+ * PARAMETERS:  sleep_state         - Which sleep state we are exiting
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
+ *              Called with interrupts ENABLED.
+ *
+ ******************************************************************************/
+acpi_status acpi_leave_sleep_state(u8 sleep_state)
+{
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
+
+
+	status = acpi_hw_sleep_dispatch(sleep_state, 0, ACPI_WAKE_FUNCTION_ID);
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state)
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index b7f2b3be79ac..3f7f3f6e7dd5 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -242,7 +242,20 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 
 		if (!obj_desc) {
 
-			/* No attached object, we are done */
+			/* No attached object. Some types should always have an object */
+
+			switch (type) {
+			case ACPI_TYPE_INTEGER:
+			case ACPI_TYPE_PACKAGE:
+			case ACPI_TYPE_BUFFER:
+			case ACPI_TYPE_STRING:
+			case ACPI_TYPE_METHOD:
+				acpi_os_printf("<No attached object>");
+				break;
+
+			default:
+				break;
+			}
 
 			acpi_os_printf("\n");
 			return (AE_OK);
diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 30ea5bc53a78..3b5acb0eb406 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -121,7 +121,7 @@ void acpi_ns_dump_root_devices(void)
 		return;
 	}
 
-	status = acpi_get_handle(NULL, ACPI_NS_SYSTEM_BUS, &sys_bus_handle);
+	status = acpi_get_handle(NULL, METHOD_NAME__SB_, &sys_bus_handle);
 	if (ACPI_FAILURE(status)) {
 		return;
 	}
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index bbe46a447d34..23ce09686418 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -638,8 +638,8 @@ acpi_ns_check_package(struct acpi_predefined_data *data,
 			/* Create the new outer package and populate it */
 
 			status =
-			    acpi_ns_repair_package_list(data,
-							return_object_ptr);
+			    acpi_ns_wrap_with_package(data, *elements,
+						      return_object_ptr);
 			if (ACPI_FAILURE(status)) {
 				return (status);
 			}
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 9c35d20eb52b..5519a64a353f 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -71,11 +71,10 @@ ACPI_MODULE_NAME("nsrepair")
  * Buffer  -> String
  * Buffer  -> Package of Integers
  * Package -> Package of one Package
+ * An incorrect standalone object is wrapped with required outer package
  *
  * Additional possible repairs:
- *
  * Required package elements that are NULL replaced by Integer/String/Buffer
- * Incorrect standalone package wrapped with required outer package
  *
  ******************************************************************************/
 /* Local prototypes */
@@ -91,10 +90,6 @@ static acpi_status
 acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 			  union acpi_operand_object **return_object);
 
-static acpi_status
-acpi_ns_convert_to_package(union acpi_operand_object *original_object,
-			   union acpi_operand_object **return_object);
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_repair_object
@@ -151,9 +146,24 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
 		}
 	}
 	if (expected_btypes & ACPI_RTYPE_PACKAGE) {
-		status = acpi_ns_convert_to_package(return_object, &new_object);
+		/*
+		 * A package is expected. We will wrap the existing object with a
+		 * new package object. It is often the case that if a variable-length
+		 * package is required, but there is only a single object needed, the
+		 * BIOS will return that object instead of wrapping it with a Package
+		 * object. Note: after the wrapping, the package will be validated
+		 * for correct contents (expected object type or types).
+		 */
+		status =
+		    acpi_ns_wrap_with_package(data, return_object, &new_object);
 		if (ACPI_SUCCESS(status)) {
-			goto object_repaired;
+			/*
+			 * The original object just had its reference count
+			 * incremented for being inserted into the new package.
+			 */
+			*return_object_ptr = new_object;	/* New Package object */
+			data->flags |= ACPI_OBJECT_REPAIRED;
+			return (AE_OK);
 		}
 	}
 
@@ -165,22 +175,27 @@ acpi_ns_repair_object(struct acpi_predefined_data *data,
 
 	/* Object was successfully repaired */
 
-	/*
-	 * If the original object is a package element, we need to:
-	 * 1. Set the reference count of the new object to match the
-	 *    reference count of the old object.
-	 * 2. Decrement the reference count of the original object.
-	 */
 	if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
-		new_object->common.reference_count =
-		    return_object->common.reference_count;
+		/*
+		 * The original object is a package element. We need to
+		 * decrement the reference count of the original object,
+		 * for removing it from the package.
+		 *
+		 * However, if the original object was just wrapped with a
+		 * package object as part of the repair, we don't need to
+		 * change the reference count.
+		 */
+		if (!(data->flags & ACPI_OBJECT_WRAPPED)) {
+			new_object->common.reference_count =
+			    return_object->common.reference_count;
 
-		if (return_object->common.reference_count > 1) {
-			return_object->common.reference_count--;
+			if (return_object->common.reference_count > 1) {
+				return_object->common.reference_count--;
+			}
 		}
 
 		ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
-				  "%s: Converted %s to expected %s at index %u\n",
+				  "%s: Converted %s to expected %s at Package index %u\n",
 				  data->pathname,
 				  acpi_ut_get_object_type_name(return_object),
 				  acpi_ut_get_object_type_name(new_object),
@@ -453,65 +468,6 @@ acpi_ns_convert_to_buffer(union acpi_operand_object *original_object,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_convert_to_package
- *
- * PARAMETERS:  original_object     - Object to be converted
- *              return_object       - Where the new converted object is returned
- *
- * RETURN:      Status. AE_OK if conversion was successful.
- *
- * DESCRIPTION: Attempt to convert a Buffer object to a Package. Each byte of
- *              the buffer is converted to a single integer package element.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_ns_convert_to_package(union acpi_operand_object *original_object,
-			   union acpi_operand_object **return_object)
-{
-	union acpi_operand_object *new_object;
-	union acpi_operand_object **elements;
-	u32 length;
-	u8 *buffer;
-
-	switch (original_object->common.type) {
-	case ACPI_TYPE_BUFFER:
-
-		/* Buffer-to-Package conversion */
-
-		length = original_object->buffer.length;
-		new_object = acpi_ut_create_package_object(length);
-		if (!new_object) {
-			return (AE_NO_MEMORY);
-		}
-
-		/* Convert each buffer byte to an integer package element */
-
-		elements = new_object->package.elements;
-		buffer = original_object->buffer.pointer;
-
-		while (length--) {
-			*elements =
-			    acpi_ut_create_integer_object((u64) *buffer);
-			if (!*elements) {
-				acpi_ut_remove_reference(new_object);
-				return (AE_NO_MEMORY);
-			}
-			elements++;
-			buffer++;
-		}
-		break;
-
-	default:
-		return (AE_AML_OPERAND_TYPE);
-	}
-
-	*return_object = new_object;
-	return (AE_OK);
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_ns_repair_null_element
  *
  * PARAMETERS:  Data                - Pointer to validation data structure
@@ -677,55 +633,56 @@ acpi_ns_remove_null_elements(struct acpi_predefined_data *data,
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ns_repair_package_list
+ * FUNCTION:    acpi_ns_wrap_with_package
  *
  * PARAMETERS:  Data                - Pointer to validation data structure
- *              obj_desc_ptr        - Pointer to the object to repair. The new
- *                                    package object is returned here,
- *                                    overwriting the old object.
+ *              original_object     - Pointer to the object to repair.
+ *              obj_desc_ptr        - The new package object is returned here
  *
  * RETURN:      Status, new object in *obj_desc_ptr
  *
- * DESCRIPTION: Repair a common problem with objects that are defined to return
- *              a variable-length Package of Packages. If the variable-length
- *              is one, some BIOS code mistakenly simply declares a single
- *              Package instead of a Package with one sub-Package. This
- *              function attempts to repair this error by wrapping a Package
- *              object around the original Package, creating the correct
- *              Package with one sub-Package.
+ * DESCRIPTION: Repair a common problem with objects that are defined to
+ *              return a variable-length Package of sub-objects. If there is
+ *              only one sub-object, some BIOS code mistakenly simply declares
+ *              the single object instead of a Package with one sub-object.
+ *              This function attempts to repair this error by wrapping a
+ *              Package object around the original object, creating the
+ *              correct and expected Package with one sub-object.
  *
  *              Names that can be repaired in this manner include:
- *              _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, TSS
+ *              _ALR, _CSD, _HPX, _MLS, _PLD, _PRT, _PSS, _TRT, _TSS,
+ *              _BCL, _DOD, _FIX, _Sx
  *
  ******************************************************************************/
 
 acpi_status
-acpi_ns_repair_package_list(struct acpi_predefined_data *data,
-			    union acpi_operand_object **obj_desc_ptr)
+acpi_ns_wrap_with_package(struct acpi_predefined_data *data,
+			  union acpi_operand_object *original_object,
+			  union acpi_operand_object **obj_desc_ptr)
 {
 	union acpi_operand_object *pkg_obj_desc;
 
-	ACPI_FUNCTION_NAME(ns_repair_package_list);
+	ACPI_FUNCTION_NAME(ns_wrap_with_package);
 
 	/*
 	 * Create the new outer package and populate it. The new package will
-	 * have a single element, the lone subpackage.
+	 * have a single element, the lone sub-object.
 	 */
 	pkg_obj_desc = acpi_ut_create_package_object(1);
 	if (!pkg_obj_desc) {
 		return (AE_NO_MEMORY);
 	}
 
-	pkg_obj_desc->package.elements[0] = *obj_desc_ptr;
+	pkg_obj_desc->package.elements[0] = original_object;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
+			  "%s: Wrapped %s with expected Package object\n",
+			  data->pathname,
+			  acpi_ut_get_object_type_name(original_object)));
 
 	/* Return the new object in the object pointer */
 
 	*obj_desc_ptr = pkg_obj_desc;
-	data->flags |= ACPI_OBJECT_REPAIRED;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_REPAIR,
-			  "%s: Repaired incorrectly formed Package\n",
-			  data->pathname));
-
+	data->flags |= ACPI_OBJECT_REPAIRED | ACPI_OBJECT_WRAPPED;
 	return (AE_OK);
 }
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index a535b7afda5c..75113759f69d 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -341,7 +341,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info)
 
 		if (!acpi_ns_valid_path_separator(*external_name) &&
 		    (*external_name != 0)) {
-			return_ACPI_STATUS(AE_BAD_PARAMETER);
+			return_ACPI_STATUS(AE_BAD_PATHNAME);
 		}
 
 		/* Move on the next segment */
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index c5d870406f41..4c9c760db4a4 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -363,10 +363,6 @@ static void acpi_tb_convert_fadt(void)
 	u32 address32;
 	u32 i;
 
-	/* Update the local FADT table header length */
-
-	acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
-
 	/*
 	 * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary.
 	 * Later code will always use the X 64-bit field. Also, check for an
@@ -408,6 +404,10 @@ static void acpi_tb_convert_fadt(void)
 		acpi_gbl_FADT.boot_flags = 0;
 	}
 
+	/* Update the local FADT table header length */
+
+	acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
+
 	/*
 	 * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X"
 	 * generic address structures as necessary. Later code will always use
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 1aecf7baa4e0..c03500b4cc7a 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -114,7 +114,6 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
 {
 	u32 i;
 	acpi_status status = AE_OK;
-	struct acpi_table_header *override_table = NULL;
 
 	ACPI_FUNCTION_TRACE(tb_add_table);
 
@@ -224,25 +223,10 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
 	/*
 	 * ACPI Table Override:
 	 * Allow the host to override dynamically loaded tables.
+	 * NOTE: the table is fully mapped at this point, and the mapping will
+	 * be deleted by tb_table_override if the table is actually overridden.
 	 */
-	status = acpi_os_table_override(table_desc->pointer, &override_table);
-	if (ACPI_SUCCESS(status) && override_table) {
-		ACPI_INFO((AE_INFO,
-			   "%4.4s @ 0x%p Table override, replaced with:",
-			   table_desc->pointer->signature,
-			   ACPI_CAST_PTR(void, table_desc->address)));
-
-		/* We can delete the table that was passed as a parameter */
-
-		acpi_tb_delete_table(table_desc);
-
-		/* Setup descriptor for the new table */
-
-		table_desc->address = ACPI_PTR_TO_PHYSADDR(override_table);
-		table_desc->pointer = override_table;
-		table_desc->length = override_table->length;
-		table_desc->flags = ACPI_TABLE_ORIGIN_OVERRIDE;
-	}
+	(void)acpi_tb_table_override(table_desc->pointer, table_desc);
 
 	/* Add the table to the global root table list */
 
@@ -263,6 +247,95 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_tb_table_override
+ *
+ * PARAMETERS:  table_header        - Header for the original table
+ *              table_desc          - Table descriptor initialized for the
+ *                                    original table. May or may not be mapped.
+ *
+ * RETURN:      Pointer to the entire new table. NULL if table not overridden.
+ *              If overridden, installs the new table within the input table
+ *              descriptor.
+ *
+ * DESCRIPTION: Attempt table override by calling the OSL override functions.
+ *              Note: If the table is overridden, then the entire new table
+ *              is mapped and returned by this function.
+ *
+ ******************************************************************************/
+
+struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
+						 *table_header,
+						 struct acpi_table_desc
+						 *table_desc)
+{
+	acpi_status status;
+	struct acpi_table_header *new_table = NULL;
+	acpi_physical_address new_address = 0;
+	u32 new_table_length = 0;
+	u8 new_flags;
+	char *override_type;
+
+	/* (1) Attempt logical override (returns a logical address) */
+
+	status = acpi_os_table_override(table_header, &new_table);
+	if (ACPI_SUCCESS(status) && new_table) {
+		new_address = ACPI_PTR_TO_PHYSADDR(new_table);
+		new_table_length = new_table->length;
+		new_flags = ACPI_TABLE_ORIGIN_OVERRIDE;
+		override_type = "Logical";
+		goto finish_override;
+	}
+
+	/* (2) Attempt physical override (returns a physical address) */
+
+	status = acpi_os_physical_table_override(table_header,
+						 &new_address,
+						 &new_table_length);
+	if (ACPI_SUCCESS(status) && new_address && new_table_length) {
+
+		/* Map the entire new table */
+
+		new_table = acpi_os_map_memory(new_address, new_table_length);
+		if (!new_table) {
+			ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
+					"%4.4s %p Attempted physical table override failed",
+					table_header->signature,
+					ACPI_CAST_PTR(void,
+						      table_desc->address)));
+			return (NULL);
+		}
+
+		override_type = "Physical";
+		new_flags = ACPI_TABLE_ORIGIN_MAPPED;
+		goto finish_override;
+	}
+
+	return (NULL);		/* There was no override */
+
+      finish_override:
+
+	ACPI_INFO((AE_INFO,
+		   "%4.4s %p %s table override, new table: %p",
+		   table_header->signature,
+		   ACPI_CAST_PTR(void, table_desc->address),
+		   override_type, new_table));
+
+	/* We can now unmap/delete the original table (if fully mapped) */
+
+	acpi_tb_delete_table(table_desc);
+
+	/* Setup descriptor for the new table */
+
+	table_desc->address = new_address;
+	table_desc->pointer = new_table;
+	table_desc->length = new_table_length;
+	table_desc->flags = new_flags;
+
+	return (new_table);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_tb_resize_root_table_list
  *
  * PARAMETERS:  None
@@ -396,7 +469,11 @@ void acpi_tb_delete_table(struct acpi_table_desc *table_desc)
 	case ACPI_TABLE_ORIGIN_ALLOCATED:
 		ACPI_FREE(table_desc->pointer);
 		break;
-	default:;
+
+		/* Not mapped or allocated, there is nothing we can do */
+
+	default:
+		return;
 	}
 
 	table_desc->pointer = NULL;
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 09ca39e14337..0a706cac37de 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -118,6 +118,7 @@ acpi_tb_check_xsdt(acpi_physical_address address)
 		return AE_OK;
 }
 
+#if (!ACPI_REDUCED_HARDWARE)
 /*******************************************************************************
  *
  * FUNCTION:    acpi_tb_initialize_facs
@@ -148,6 +149,7 @@ acpi_status acpi_tb_initialize_facs(void)
 								&acpi_gbl_FACS));
 	return status;
 }
+#endif				/* !ACPI_REDUCED_HARDWARE */
 
 /*******************************************************************************
  *
@@ -444,7 +446,7 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index)
  * RETURN:      None
  *
  * DESCRIPTION: Install an ACPI table into the global data structure. The
- *              table override mechanism is implemented here to allow the host
+ *              table override mechanism is called to allow the host
  *              OS to replace any table before it is installed in the root
  *              table array.
  *
@@ -454,11 +456,9 @@ void
 acpi_tb_install_table(acpi_physical_address address,
 		      char *signature, u32 table_index)
 {
-	u8 flags;
-	acpi_status status;
-	struct acpi_table_header *table_to_install;
-	struct acpi_table_header *mapped_table;
-	struct acpi_table_header *override_table = NULL;
+	struct acpi_table_header *table;
+	struct acpi_table_header *final_table;
+	struct acpi_table_desc *table_desc;
 
 	if (!address) {
 		ACPI_ERROR((AE_INFO,
@@ -469,69 +469,78 @@ acpi_tb_install_table(acpi_physical_address address,
 
 	/* Map just the table header */
 
-	mapped_table =
-	    acpi_os_map_memory(address, sizeof(struct acpi_table_header));
-	if (!mapped_table) {
+	table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+	if (!table) {
+		ACPI_ERROR((AE_INFO,
+			    "Could not map memory for table [%s] at %p",
+			    signature, ACPI_CAST_PTR(void, address)));
 		return;
 	}
 
 	/* If a particular signature is expected (DSDT/FACS), it must match */
 
-	if (signature && !ACPI_COMPARE_NAME(mapped_table->signature, signature)) {
+	if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
 		ACPI_ERROR((AE_INFO,
 			    "Invalid signature 0x%X for ACPI table, expected [%s]",
-			    *ACPI_CAST_PTR(u32, mapped_table->signature),
-			    signature));
+			    *ACPI_CAST_PTR(u32, table->signature), signature));
 		goto unmap_and_exit;
 	}
 
 	/*
+	 * Initialize the table entry. Set the pointer to NULL, since the
+	 * table is not fully mapped at this time.
+	 */
+	table_desc = &acpi_gbl_root_table_list.tables[table_index];
+
+	table_desc->address = address;
+	table_desc->pointer = NULL;
+	table_desc->length = table->length;
+	table_desc->flags = ACPI_TABLE_ORIGIN_MAPPED;
+	ACPI_MOVE_32_TO_32(table_desc->signature.ascii, table->signature);
+
+	/*
 	 * ACPI Table Override:
 	 *
 	 * Before we install the table, let the host OS override it with a new
 	 * one if desired. Any table within the RSDT/XSDT can be replaced,
 	 * including the DSDT which is pointed to by the FADT.
+	 *
+	 * NOTE: If the table is overridden, then final_table will contain a
+	 * mapped pointer to the full new table. If the table is not overridden,
+	 * or if there has been a physical override, then the table will be
+	 * fully mapped later (in verify table). In any case, we must
+	 * unmap the header that was mapped above.
 	 */
-	status = acpi_os_table_override(mapped_table, &override_table);
-	if (ACPI_SUCCESS(status) && override_table) {
-		ACPI_INFO((AE_INFO,
-			   "%4.4s @ 0x%p Table override, replaced with:",
-			   mapped_table->signature, ACPI_CAST_PTR(void,
-								  address)));
-
-		acpi_gbl_root_table_list.tables[table_index].pointer =
-		    override_table;
-		address = ACPI_PTR_TO_PHYSADDR(override_table);
-
-		table_to_install = override_table;
-		flags = ACPI_TABLE_ORIGIN_OVERRIDE;
-	} else {
-		table_to_install = mapped_table;
-		flags = ACPI_TABLE_ORIGIN_MAPPED;
+	final_table = acpi_tb_table_override(table, table_desc);
+	if (!final_table) {
+		final_table = table;	/* There was no override */
 	}
 
-	/* Initialize the table entry */
+	acpi_tb_print_table_header(table_desc->address, final_table);
 
-	acpi_gbl_root_table_list.tables[table_index].address = address;
-	acpi_gbl_root_table_list.tables[table_index].length =
-	    table_to_install->length;
-	acpi_gbl_root_table_list.tables[table_index].flags = flags;
-
-	ACPI_MOVE_32_TO_32(&
-			   (acpi_gbl_root_table_list.tables[table_index].
-			    signature), table_to_install->signature);
-
-	acpi_tb_print_table_header(address, table_to_install);
+	/* Set the global integer width (based upon revision of the DSDT) */
 
 	if (table_index == ACPI_TABLE_INDEX_DSDT) {
+		acpi_ut_set_integer_width(final_table->revision);
+	}
 
-		/* Global integer width is based upon revision of the DSDT */
-
-		acpi_ut_set_integer_width(table_to_install->revision);
+	/*
+	 * If we have a physical override during this early loading of the ACPI
+	 * tables, unmap the table for now. It will be mapped again later when
+	 * it is actually used. This supports very early loading of ACPI tables,
+	 * before virtual memory is fully initialized and running within the
+	 * host OS. Note: A logical override has the ACPI_TABLE_ORIGIN_OVERRIDE
+	 * flag set and will not be deleted below.
+	 */
+	if (final_table != table) {
+		acpi_tb_delete_table(table_desc);
 	}
 
       unmap_and_exit:
-	acpi_os_unmap_memory(mapped_table, sizeof(struct acpi_table_header));
+
+	/* Always unmap the table header that we mapped above */
+
+	acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index d42ede5260c7..684849949bf3 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -497,19 +497,20 @@ char *acpi_ut_get_mutex_name(u32 mutex_id)
 
 /* Names for Notify() values, used for debug output */
 
-static const char *acpi_gbl_notify_value_names[] = {
-	"Bus Check",
-	"Device Check",
-	"Device Wake",
-	"Eject Request",
-	"Device Check Light",
-	"Frequency Mismatch",
-	"Bus Mode Mismatch",
-	"Power Fault",
-	"Capabilities Check",
-	"Device PLD Check",
-	"Reserved",
-	"System Locality Update"
+static const char *acpi_gbl_notify_value_names[ACPI_NOTIFY_MAX + 1] = {
+	/* 00 */ "Bus Check",
+	/* 01 */ "Device Check",
+	/* 02 */ "Device Wake",
+	/* 03 */ "Eject Request",
+	/* 04 */ "Device Check Light",
+	/* 05 */ "Frequency Mismatch",
+	/* 06 */ "Bus Mode Mismatch",
+	/* 07 */ "Power Fault",
+	/* 08 */ "Capabilities Check",
+	/* 09 */ "Device PLD Check",
+	/* 10 */ "Reserved",
+	/* 11 */ "System Locality Update",
+	/* 12 */ "Shutdown Request"
 };
 
 const char *acpi_ut_get_notify_name(u32 notify_value)
@@ -519,9 +520,10 @@ const char *acpi_ut_get_notify_name(u32 notify_value)
 		return (acpi_gbl_notify_value_names[notify_value]);
 	} else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
 		return ("Reserved");
-	} else {		/* Greater or equal to 0x80 */
-
-		return ("**Device Specific**");
+	} else if (notify_value <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY) {
+		return ("Device Specific");
+	} else {
+		return ("Hardware Specific");
 	}
 }
 #endif
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 4153584cf526..90f53b42eca9 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -140,6 +140,7 @@ const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
 	{NULL, ACPI_TYPE_ANY, NULL}
 };
 
+#if (!ACPI_REDUCED_HARDWARE)
 /******************************************************************************
  *
  * Event and Hardware globals
@@ -236,6 +237,7 @@ struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] =
 					ACPI_BITMASK_RT_CLOCK_STATUS,
 					ACPI_BITMASK_RT_CLOCK_ENABLE},
 };
+#endif				/* !ACPI_REDUCED_HARDWARE */
 
 /*******************************************************************************
  *
@@ -286,6 +288,8 @@ acpi_status acpi_ut_init_globals(void)
 
 	acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
 
+#if (!ACPI_REDUCED_HARDWARE)
+
 	/* GPE support */
 
 	acpi_gbl_gpe_xrupt_list_head = NULL;
@@ -294,6 +298,10 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_current_gpe_count = 0;
 	acpi_gbl_all_gpes_initialized = FALSE;
 
+	acpi_gbl_global_event_handler = NULL;
+
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
 	/* Global handlers */
 
 	acpi_gbl_system_notify.handler = NULL;
@@ -302,7 +310,6 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_gbl_init_handler = NULL;
 	acpi_gbl_table_handler = NULL;
 	acpi_gbl_interface_handler = NULL;
-	acpi_gbl_global_event_handler = NULL;
 
 	/* Global Lock support */
 
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index 8359c0c5dc98..246798e4c938 100644
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -53,27 +53,35 @@ ACPI_MODULE_NAME("utinit")
 /* Local prototypes */
 static void acpi_ut_terminate(void);
 
+#if (!ACPI_REDUCED_HARDWARE)
+
+static void acpi_ut_free_gpe_lists(void);
+
+#else
+
+#define acpi_ut_free_gpe_lists()
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
+#if (!ACPI_REDUCED_HARDWARE)
 /******************************************************************************
  *
- * FUNCTION:    acpi_ut_terminate
+ * FUNCTION:    acpi_ut_free_gpe_lists
  *
  * PARAMETERS:  none
  *
  * RETURN:      none
  *
- * DESCRIPTION: Free global memory
+ * DESCRIPTION: Free global GPE lists
  *
  ******************************************************************************/
 
-static void acpi_ut_terminate(void)
+static void acpi_ut_free_gpe_lists(void)
 {
 	struct acpi_gpe_block_info *gpe_block;
 	struct acpi_gpe_block_info *next_gpe_block;
 	struct acpi_gpe_xrupt_info *gpe_xrupt_info;
 	struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
 
-	ACPI_FUNCTION_TRACE(ut_terminate);
-
 	/* Free global GPE blocks and related info structures */
 
 	gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
@@ -91,7 +99,26 @@ static void acpi_ut_terminate(void)
 		ACPI_FREE(gpe_xrupt_info);
 		gpe_xrupt_info = next_gpe_xrupt_info;
 	}
+}
+#endif				/* !ACPI_REDUCED_HARDWARE */
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_terminate
+ *
+ * PARAMETERS:  none
+ *
+ * RETURN:      none
+ *
+ * DESCRIPTION: Free global memory
+ *
+ ******************************************************************************/
+
+static void acpi_ut_terminate(void)
+{
+	ACPI_FUNCTION_TRACE(ut_terminate);
 
+	acpi_ut_free_gpe_lists();
 	acpi_ut_delete_address_lists();
 	return_VOID;
 }
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 644e8c8ebc4b..afa94f51ff0b 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -145,6 +145,8 @@ acpi_status acpi_enable_subsystem(u32 flags)
 
 	ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
 
+#if (!ACPI_REDUCED_HARDWARE)
+
 	/* Enable ACPI mode */
 
 	if (!(flags & ACPI_NO_ACPI_ENABLE)) {
@@ -169,6 +171,7 @@ acpi_status acpi_enable_subsystem(u32 flags)
 		ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
 		return_ACPI_STATUS(status);
 	}
+#endif				/* !ACPI_REDUCED_HARDWARE */
 
 	/*
 	 * Install the default op_region handlers. These are installed unless
@@ -184,7 +187,7 @@ acpi_status acpi_enable_subsystem(u32 flags)
 			return_ACPI_STATUS(status);
 		}
 	}
-
+#if (!ACPI_REDUCED_HARDWARE)
 	/*
 	 * Initialize ACPI Event handling (Fixed and General Purpose)
 	 *
@@ -220,6 +223,7 @@ acpi_status acpi_enable_subsystem(u32 flags)
 			return_ACPI_STATUS(status);
 		}
 	}
+#endif				/* !ACPI_REDUCED_HARDWARE */
 
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index e5d53b7ddc7e..5577762daee1 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -558,33 +558,48 @@ void apei_resources_release(struct apei_resources *resources)
 }
 EXPORT_SYMBOL_GPL(apei_resources_release);
 
-static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr)
+static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr,
+				u32 *access_bit_width)
 {
-	u32 width, space_id;
+	u32 bit_width, bit_offset, access_size_code, space_id;
 
-	width = reg->bit_width;
+	bit_width = reg->bit_width;
+	bit_offset = reg->bit_offset;
+	access_size_code = reg->access_width;
 	space_id = reg->space_id;
 	/* Handle possible alignment issues */
 	memcpy(paddr, &reg->address, sizeof(*paddr));
 	if (!*paddr) {
 		pr_warning(FW_BUG APEI_PFX
-			   "Invalid physical address in GAR [0x%llx/%u/%u]\n",
-			   *paddr, width, space_id);
+			   "Invalid physical address in GAR [0x%llx/%u/%u/%u/%u]\n",
+			   *paddr, bit_width, bit_offset, access_size_code,
+			   space_id);
 		return -EINVAL;
 	}
 
-	if ((width != 8) && (width != 16) && (width != 32) && (width != 64)) {
+	if (access_size_code < 1 || access_size_code > 4) {
 		pr_warning(FW_BUG APEI_PFX
-			   "Invalid bit width in GAR [0x%llx/%u/%u]\n",
-			   *paddr, width, space_id);
+			   "Invalid access size code in GAR [0x%llx/%u/%u/%u/%u]\n",
+			   *paddr, bit_width, bit_offset, access_size_code,
+			   space_id);
+		return -EINVAL;
+	}
+	*access_bit_width = 1UL << (access_size_code + 2);
+
+	if ((bit_width + bit_offset) > *access_bit_width) {
+		pr_warning(FW_BUG APEI_PFX
+			   "Invalid bit width + offset in GAR [0x%llx/%u/%u/%u/%u]\n",
+			   *paddr, bit_width, bit_offset, access_size_code,
+			   space_id);
 		return -EINVAL;
 	}
 
 	if (space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY &&
 	    space_id != ACPI_ADR_SPACE_SYSTEM_IO) {
 		pr_warning(FW_BUG APEI_PFX
-			   "Invalid address space type in GAR [0x%llx/%u/%u]\n",
-			   *paddr, width, space_id);
+			   "Invalid address space type in GAR [0x%llx/%u/%u/%u/%u]\n",
+			   *paddr, bit_width, bit_offset, access_size_code,
+			   space_id);
 		return -EINVAL;
 	}
 
@@ -595,23 +610,25 @@ static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr)
 int apei_read(u64 *val, struct acpi_generic_address *reg)
 {
 	int rc;
+	u32 access_bit_width;
 	u64 address;
 	acpi_status status;
 
-	rc = apei_check_gar(reg, &address);
+	rc = apei_check_gar(reg, &address, &access_bit_width);
 	if (rc)
 		return rc;
 
 	*val = 0;
 	switch(reg->space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-		status = acpi_os_read_memory64((acpi_physical_address)
-					     address, val, reg->bit_width);
+		status = acpi_os_read_memory((acpi_physical_address) address,
+					       val, access_bit_width);
 		if (ACPI_FAILURE(status))
 			return -EIO;
 		break;
 	case ACPI_ADR_SPACE_SYSTEM_IO:
-		status = acpi_os_read_port(address, (u32 *)val, reg->bit_width);
+		status = acpi_os_read_port(address, (u32 *)val,
+					   access_bit_width);
 		if (ACPI_FAILURE(status))
 			return -EIO;
 		break;
@@ -627,22 +644,23 @@ EXPORT_SYMBOL_GPL(apei_read);
 int apei_write(u64 val, struct acpi_generic_address *reg)
 {
 	int rc;
+	u32 access_bit_width;
 	u64 address;
 	acpi_status status;
 
-	rc = apei_check_gar(reg, &address);
+	rc = apei_check_gar(reg, &address, &access_bit_width);
 	if (rc)
 		return rc;
 
 	switch (reg->space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_MEMORY:
-		status = acpi_os_write_memory64((acpi_physical_address)
-					      address, val, reg->bit_width);
+		status = acpi_os_write_memory((acpi_physical_address) address,
+						val, access_bit_width);
 		if (ACPI_FAILURE(status))
 			return -EIO;
 		break;
 	case ACPI_ADR_SPACE_SYSTEM_IO:
-		status = acpi_os_write_port(address, val, reg->bit_width);
+		status = acpi_os_write_port(address, val, access_bit_width);
 		if (ACPI_FAILURE(status))
 			return -EIO;
 		break;
@@ -661,23 +679,24 @@ static int collect_res_callback(struct apei_exec_context *ctx,
 	struct apei_resources *resources = data;
 	struct acpi_generic_address *reg = &entry->register_region;
 	u8 ins = entry->instruction;
+	u32 access_bit_width;
 	u64 paddr;
 	int rc;
 
 	if (!(ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER))
 		return 0;
 
-	rc = apei_check_gar(reg, &paddr);
+	rc = apei_check_gar(reg, &paddr, &access_bit_width);
 	if (rc)
 		return rc;
 
 	switch (reg->space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_MEMORY:
 		return apei_res_add(&resources->iomem, paddr,
-				    reg->bit_width / 8);
+				    access_bit_width / 8);
 	case ACPI_ADR_SPACE_SYSTEM_IO:
 		return apei_res_add(&resources->ioport, paddr,
-				    reg->bit_width / 8);
+				    access_bit_width / 8);
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index 5d4189464d63..e6defd86b424 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -362,6 +362,7 @@ void apei_estatus_print(const char *pfx,
 		gedata_len = gdata->error_data_length;
 		apei_estatus_print_section(pfx, gdata, sec_no);
 		data_len -= gedata_len + sizeof(*gdata);
+		gdata = (void *)(gdata + 1) + gedata_len;
 		sec_no++;
 	}
 }
@@ -396,6 +397,7 @@ int apei_estatus_check(const struct acpi_hest_generic_status *estatus)
 		if (gedata_len > data_len - sizeof(*gdata))
 			return -EINVAL;
 		data_len -= gedata_len + sizeof(*gdata);
+		gdata = (void *)(gdata + 1) + gedata_len;
 	}
 	if (data_len)
 		return -EINVAL;
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index 4ca087dd5f4f..8e1793649ec0 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -74,6 +74,8 @@ struct vendor_error_type_extension {
 	u8	reserved[3];
 };
 
+static u32 notrigger;
+
 static u32 vendor_flags;
 static struct debugfs_blob_wrapper vendor_blob;
 static char vendor_dev[64];
@@ -238,7 +240,7 @@ static void *einj_get_parameter_address(void)
 			return v5param;
 		}
 	}
-	if (paddrv4) {
+	if (param_extension && paddrv4) {
 		struct einj_parameter *v4param;
 
 		v4param = acpi_os_map_memory(paddrv4, sizeof(*v4param));
@@ -496,9 +498,11 @@ static int __einj_error_inject(u32 type, u64 param1, u64 param2)
 	if (rc)
 		return rc;
 	trigger_paddr = apei_exec_ctx_get_output(&ctx);
-	rc = __einj_error_trigger(trigger_paddr, type, param1, param2);
-	if (rc)
-		return rc;
+	if (notrigger == 0) {
+		rc = __einj_error_trigger(trigger_paddr, type, param1, param2);
+		if (rc)
+			return rc;
+	}
 	rc = apei_exec_run_optional(&ctx, ACPI_EINJ_END_OPERATION);
 
 	return rc;
@@ -700,6 +704,11 @@ static int __init einj_init(void)
 					    einj_debug_dir, &error_param2);
 		if (!fentry)
 			goto err_unmap;
+
+		fentry = debugfs_create_x32("notrigger", S_IRUSR | S_IWUSR,
+					    einj_debug_dir, &notrigger);
+		if (!fentry)
+			goto err_unmap;
 	}
 
 	if (vendor_dev[0]) {
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index eb9fab5b96e4..e4d9d24eb73d 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -917,7 +917,7 @@ static int erst_check_table(struct acpi_table_erst *erst_tab)
 {
 	if ((erst_tab->header_length !=
 	     (sizeof(struct acpi_table_erst) - sizeof(erst_tab->header)))
-	    && (erst_tab->header_length != sizeof(struct acpi_table_einj)))
+	    && (erst_tab->header_length != sizeof(struct acpi_table_erst)))
 		return -EINVAL;
 	if (erst_tab->header.length < sizeof(struct acpi_table_erst))
 		return -EINVAL;
diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c
new file mode 100644
index 000000000000..8cf6c46e99fb
--- /dev/null
+++ b/drivers/acpi/bgrt.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright 2012 Red Hat, Inc <mjg@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/sysfs.h>
+#include <acpi/acpi.h>
+#include <acpi/acpi_bus.h>
+
+static struct acpi_table_bgrt *bgrt_tab;
+static struct kobject *bgrt_kobj;
+
+struct bmp_header {
+	u16 id;
+	u32 size;
+} __attribute ((packed));
+
+static struct bmp_header bmp_header;
+
+static ssize_t show_version(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->version);
+}
+static DEVICE_ATTR(version, S_IRUGO, show_version, NULL);
+
+static ssize_t show_status(struct device *dev,
+			   struct device_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->status);
+}
+static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
+
+static ssize_t show_type(struct device *dev,
+			 struct device_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->image_type);
+}
+static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
+
+static ssize_t show_xoffset(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->image_offset_x);
+}
+static DEVICE_ATTR(xoffset, S_IRUGO, show_xoffset, NULL);
+
+static ssize_t show_yoffset(struct device *dev,
+			    struct device_attribute *attr, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%d\n", bgrt_tab->image_offset_y);
+}
+static DEVICE_ATTR(yoffset, S_IRUGO, show_yoffset, NULL);
+
+static ssize_t show_image(struct file *file, struct kobject *kobj,
+	       struct bin_attribute *attr, char *buf, loff_t off, size_t count)
+{
+	int size = attr->size;
+	void __iomem *image = attr->private;
+
+	if (off >= size) {
+		count = 0;
+	} else {
+		if (off + count > size)
+			count = size - off;
+
+		memcpy_fromio(buf, image+off, count);
+	}
+
+	return count;
+}
+
+static struct bin_attribute image_attr = {
+	.attr = {
+		.name = "image",
+		.mode = S_IRUGO,
+	},
+	.read = show_image,
+};
+
+static struct attribute *bgrt_attributes[] = {
+	&dev_attr_version.attr,
+	&dev_attr_status.attr,
+	&dev_attr_type.attr,
+	&dev_attr_xoffset.attr,
+	&dev_attr_yoffset.attr,
+	NULL,
+};
+
+static struct attribute_group bgrt_attribute_group = {
+	.attrs = bgrt_attributes,
+};
+
+static int __init bgrt_init(void)
+{
+	acpi_status status;
+	int ret;
+	void __iomem *bgrt;
+
+	if (acpi_disabled)
+		return -ENODEV;
+
+	status = acpi_get_table("BGRT", 0,
+				(struct acpi_table_header **)&bgrt_tab);
+
+	if (ACPI_FAILURE(status))
+		return -ENODEV;
+
+	sysfs_bin_attr_init(&image_attr);
+
+	bgrt = ioremap(bgrt_tab->image_address, sizeof(struct bmp_header));
+
+	if (!bgrt) {
+		ret = -EINVAL;
+		goto out_err;
+	}
+
+	memcpy_fromio(&bmp_header, bgrt, sizeof(bmp_header));
+	image_attr.size = bmp_header.size;
+	iounmap(bgrt);
+
+	image_attr.private = ioremap(bgrt_tab->image_address, image_attr.size);
+
+	if (!image_attr.private) {
+		ret = -EINVAL;
+		goto out_err;
+	}
+
+
+	bgrt_kobj = kobject_create_and_add("bgrt", acpi_kobj);
+	if (!bgrt_kobj) {
+		ret = -EINVAL;
+		goto out_iounmap;
+	}
+
+	ret = sysfs_create_group(bgrt_kobj, &bgrt_attribute_group);
+	if (ret)
+		goto out_kobject;
+
+	ret = sysfs_create_bin_file(bgrt_kobj, &image_attr);
+	if (ret)
+		goto out_group;
+
+	return 0;
+
+out_group:
+	sysfs_remove_group(bgrt_kobj, &bgrt_attribute_group);
+out_kobject:
+	kobject_put(bgrt_kobj);
+out_iounmap:
+	iounmap(image_attr.private);
+out_err:
+	return ret;
+}
+
+static void __exit bgrt_exit(void)
+{
+	iounmap(image_attr.private);
+	sysfs_remove_group(bgrt_kobj, &bgrt_attribute_group);
+	sysfs_remove_bin_file(bgrt_kobj, &image_attr);
+}
+
+module_init(bgrt_init);
+module_exit(bgrt_exit);
+
+MODULE_AUTHOR("Matthew Garrett");
+MODULE_DESCRIPTION("BGRT boot graphic support");
+MODULE_LICENSE("GPL");
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 9ecec98bc76e..3263b68cdfa3 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1010,6 +1010,7 @@ static int __init acpi_bus_init(void)
 }
 
 struct kobject *acpi_kobj;
+EXPORT_SYMBOL_GPL(acpi_kobj);
 
 static int __init acpi_init(void)
 {
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index b19a18dd994f..7edaccce6640 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -445,6 +445,16 @@ int ec_transaction(u8 command,
 
 EXPORT_SYMBOL(ec_transaction);
 
+/* Get the handle to the EC device */
+acpi_handle ec_get_handle(void)
+{
+	if (!first_ec)
+		return NULL;
+	return first_ec->handle;
+}
+
+EXPORT_SYMBOL(ec_get_handle);
+
 void acpi_ec_block_transactions(void)
 {
 	struct acpi_ec *ec = first_ec;
@@ -812,10 +822,10 @@ static int acpi_ec_add(struct acpi_device *device)
 		first_ec = ec;
 	device->driver_data = ec;
 
-	WARN(!request_region(ec->data_addr, 1, "EC data"),
-	     "Could not request EC data io port 0x%lx", ec->data_addr);
-	WARN(!request_region(ec->command_addr, 1, "EC cmd"),
-	     "Could not request EC cmd io port 0x%lx", ec->command_addr);
+	ret = !!request_region(ec->data_addr, 1, "EC data");
+	WARN(!ret, "Could not request EC data io port 0x%lx", ec->data_addr);
+	ret = !!request_region(ec->command_addr, 1, "EC cmd");
+	WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr);
 
 	pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
 			  ec->gpe, ec->command_addr, ec->data_addr);
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index b258cab9061c..7586544fddb4 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -27,12 +27,6 @@ MODULE_PARM_DESC(write_support, "Dangerous, reboot and removal of battery may "
 
 static struct dentry *acpi_ec_debugfs_dir;
 
-static int acpi_ec_open_io(struct inode *i, struct file *f)
-{
-	f->private_data = i->i_private;
-	return 0;
-}
-
 static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
 			       size_t count, loff_t *off)
 {
@@ -95,7 +89,7 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
 
 static const struct file_operations acpi_ec_io_ops = {
 	.owner = THIS_MODULE,
-	.open  = acpi_ec_open_io,
+	.open  = simple_open,
 	.read  = acpi_ec_read_io,
 	.write = acpi_ec_write_io,
 	.llseek = default_llseek,
diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c
index 7a2035fa8c71..266bc58ce0ce 100644
--- a/drivers/acpi/nvs.c
+++ b/drivers/acpi/nvs.c
@@ -95,8 +95,8 @@ static int suspend_nvs_register(unsigned long start, unsigned long size)
 {
 	struct nvs_page *entry, *next;
 
-	pr_info("PM: Registering ACPI NVS region at %lx (%ld bytes)\n",
-		start, size);
+	pr_info("PM: Registering ACPI NVS region [mem %#010lx-%#010lx] (%ld bytes)\n",
+		start, start + size - 1, size);
 
 	while (size > 0) {
 		unsigned int nr_bytes;
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 412a1e04a922..c3881b2eb8b2 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -77,6 +77,9 @@ EXPORT_SYMBOL(acpi_in_debugger);
 extern char line_buf[80];
 #endif				/*ENABLE_DEBUGGER */
 
+static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl,
+				      u32 pm1b_ctrl);
+
 static acpi_osd_handler acpi_irq_handler;
 static void *acpi_irq_context;
 static struct workqueue_struct *kacpid_wq;
@@ -347,7 +350,7 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
 	unsigned long pfn;
 
 	pfn = pg_off >> PAGE_SHIFT;
-	if (page_is_ram(pfn))
+	if (should_use_kmap(pfn))
 		kunmap(pfn_to_page(pfn));
 	else
 		iounmap(vaddr);
@@ -554,6 +557,15 @@ acpi_os_table_override(struct acpi_table_header * existing_table,
 	return AE_OK;
 }
 
+acpi_status
+acpi_os_physical_table_override(struct acpi_table_header *existing_table,
+				acpi_physical_address * new_address,
+				u32 *new_table_length)
+{
+	return AE_SUPPORT;
+}
+
+
 static irqreturn_t acpi_irq(int irq, void *dev_id)
 {
 	u32 handled;
@@ -699,49 +711,6 @@ acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width)
 
 EXPORT_SYMBOL(acpi_os_write_port);
 
-acpi_status
-acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width)
-{
-	void __iomem *virt_addr;
-	unsigned int size = width / 8;
-	bool unmap = false;
-	u32 dummy;
-
-	rcu_read_lock();
-	virt_addr = acpi_map_vaddr_lookup(phys_addr, size);
-	if (!virt_addr) {
-		rcu_read_unlock();
-		virt_addr = acpi_os_ioremap(phys_addr, size);
-		if (!virt_addr)
-			return AE_BAD_ADDRESS;
-		unmap = true;
-	}
-
-	if (!value)
-		value = &dummy;
-
-	switch (width) {
-	case 8:
-		*(u8 *) value = readb(virt_addr);
-		break;
-	case 16:
-		*(u16 *) value = readw(virt_addr);
-		break;
-	case 32:
-		*(u32 *) value = readl(virt_addr);
-		break;
-	default:
-		BUG();
-	}
-
-	if (unmap)
-		iounmap(virt_addr);
-	else
-		rcu_read_unlock();
-
-	return AE_OK;
-}
-
 #ifdef readq
 static inline u64 read64(const volatile void __iomem *addr)
 {
@@ -758,7 +727,7 @@ static inline u64 read64(const volatile void __iomem *addr)
 #endif
 
 acpi_status
-acpi_os_read_memory64(acpi_physical_address phys_addr, u64 *value, u32 width)
+acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width)
 {
 	void __iomem *virt_addr;
 	unsigned int size = width / 8;
@@ -803,45 +772,6 @@ acpi_os_read_memory64(acpi_physical_address phys_addr, u64 *value, u32 width)
 	return AE_OK;
 }
 
-acpi_status
-acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width)
-{
-	void __iomem *virt_addr;
-	unsigned int size = width / 8;
-	bool unmap = false;
-
-	rcu_read_lock();
-	virt_addr = acpi_map_vaddr_lookup(phys_addr, size);
-	if (!virt_addr) {
-		rcu_read_unlock();
-		virt_addr = acpi_os_ioremap(phys_addr, size);
-		if (!virt_addr)
-			return AE_BAD_ADDRESS;
-		unmap = true;
-	}
-
-	switch (width) {
-	case 8:
-		writeb(value, virt_addr);
-		break;
-	case 16:
-		writew(value, virt_addr);
-		break;
-	case 32:
-		writel(value, virt_addr);
-		break;
-	default:
-		BUG();
-	}
-
-	if (unmap)
-		iounmap(virt_addr);
-	else
-		rcu_read_unlock();
-
-	return AE_OK;
-}
-
 #ifdef writeq
 static inline void write64(u64 val, volatile void __iomem *addr)
 {
@@ -856,7 +786,7 @@ static inline void write64(u64 val, volatile void __iomem *addr)
 #endif
 
 acpi_status
-acpi_os_write_memory64(acpi_physical_address phys_addr, u64 value, u32 width)
+acpi_os_write_memory(acpi_physical_address phys_addr, u64 value, u32 width)
 {
 	void __iomem *virt_addr;
 	unsigned int size = width / 8;
@@ -1641,3 +1571,24 @@ acpi_status acpi_os_terminate(void)
 
 	return AE_OK;
 }
+
+acpi_status acpi_os_prepare_sleep(u8 sleep_state, u32 pm1a_control,
+				  u32 pm1b_control)
+{
+	int rc = 0;
+	if (__acpi_os_prepare_sleep)
+		rc = __acpi_os_prepare_sleep(sleep_state,
+					     pm1a_control, pm1b_control);
+	if (rc < 0)
+		return AE_ERROR;
+	else if (rc > 0)
+		return AE_CTRL_SKIP;
+
+	return AE_OK;
+}
+
+void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
+			       u32 pm1a_ctrl, u32 pm1b_ctrl))
+{
+	__acpi_os_prepare_sleep = func;
+}
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 9ac2a9fa90ff..7049a7d27c4f 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -40,9 +40,11 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/slab.h>
+#include <linux/pm_runtime.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include "sleep.h"
+#include "internal.h"
 
 #define PREFIX "ACPI: "
 
@@ -77,6 +79,20 @@ static struct acpi_driver acpi_power_driver = {
 		},
 };
 
+/*
+ * A power managed device
+ * A device may rely on multiple power resources.
+ * */
+struct acpi_power_managed_device {
+	struct device *dev; /* The physical device */
+	acpi_handle *handle;
+};
+
+struct acpi_power_resource_device {
+	struct acpi_power_managed_device *device;
+	struct acpi_power_resource_device *next;
+};
+
 struct acpi_power_resource {
 	struct acpi_device * device;
 	acpi_bus_id name;
@@ -84,6 +100,9 @@ struct acpi_power_resource {
 	u32 order;
 	unsigned int ref_count;
 	struct mutex resource_lock;
+
+	/* List of devices relying on this power resource */
+	struct acpi_power_resource_device *devices;
 };
 
 static struct list_head acpi_power_resource_list;
@@ -183,8 +202,26 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state)
 	return 0;
 }
 
+/* Resume the device when all power resources in _PR0 are on */
+static void acpi_power_on_device(struct acpi_power_managed_device *device)
+{
+	struct acpi_device *acpi_dev;
+	acpi_handle handle = device->handle;
+	int state;
+
+	if (acpi_bus_get_device(handle, &acpi_dev))
+		return;
+
+	if(acpi_power_get_inferred_state(acpi_dev, &state))
+		return;
+
+	if (state == ACPI_STATE_D0 && pm_runtime_suspended(device->dev))
+		pm_request_resume(device->dev);
+}
+
 static int __acpi_power_on(struct acpi_power_resource *resource)
 {
+	struct acpi_power_resource_device *device_list = resource->devices;
 	acpi_status status = AE_OK;
 
 	status = acpi_evaluate_object(resource->device->handle, "_ON", NULL, NULL);
@@ -197,6 +234,12 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Power resource [%s] turned on\n",
 			  resource->name));
 
+	while (device_list) {
+		acpi_power_on_device(device_list->device);
+
+		device_list = device_list->next;
+	}
+
 	return 0;
 }
 
@@ -299,6 +342,125 @@ static int acpi_power_on_list(struct acpi_handle_list *list)
 	return result;
 }
 
+static void __acpi_power_resource_unregister_device(struct device *dev,
+		acpi_handle res_handle)
+{
+	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource_device *prev, *curr;
+
+	if (acpi_power_get_context(res_handle, &resource))
+		return;
+
+	mutex_lock(&resource->resource_lock);
+	prev = NULL;
+	curr = resource->devices;
+	while (curr) {
+		if (curr->device->dev == dev) {
+			if (!prev)
+				resource->devices = curr->next;
+			else
+				prev->next = curr->next;
+
+			kfree(curr);
+			break;
+		}
+
+		prev = curr;
+		curr = curr->next;
+	}
+	mutex_unlock(&resource->resource_lock);
+}
+
+/* Unlink dev from all power resources in _PR0 */
+void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handle)
+{
+	struct acpi_device *acpi_dev;
+	struct acpi_handle_list *list;
+	int i;
+
+	if (!dev || !handle)
+		return;
+
+	if (acpi_bus_get_device(handle, &acpi_dev))
+		return;
+
+	list = &acpi_dev->power.states[ACPI_STATE_D0].resources;
+
+	for (i = 0; i < list->count; i++)
+		__acpi_power_resource_unregister_device(dev,
+			list->handles[i]);
+}
+
+static int __acpi_power_resource_register_device(
+	struct acpi_power_managed_device *powered_device, acpi_handle handle)
+{
+	struct acpi_power_resource *resource = NULL;
+	struct acpi_power_resource_device *power_resource_device;
+	int result;
+
+	result = acpi_power_get_context(handle, &resource);
+	if (result)
+		return result;
+
+	power_resource_device = kzalloc(
+		sizeof(*power_resource_device), GFP_KERNEL);
+	if (!power_resource_device)
+		return -ENOMEM;
+
+	power_resource_device->device = powered_device;
+
+	mutex_lock(&resource->resource_lock);
+	power_resource_device->next = resource->devices;
+	resource->devices = power_resource_device;
+	mutex_unlock(&resource->resource_lock);
+
+	return 0;
+}
+
+/* Link dev to all power resources in _PR0 */
+int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
+{
+	struct acpi_device *acpi_dev;
+	struct acpi_handle_list *list;
+	struct acpi_power_managed_device *powered_device;
+	int i, ret;
+
+	if (!dev || !handle)
+		return -ENODEV;
+
+	ret = acpi_bus_get_device(handle, &acpi_dev);
+	if (ret)
+		goto no_power_resource;
+
+	if (!acpi_dev->power.flags.power_resources)
+		goto no_power_resource;
+
+	powered_device = kzalloc(sizeof(*powered_device), GFP_KERNEL);
+	if (!powered_device)
+		return -ENOMEM;
+
+	powered_device->dev = dev;
+	powered_device->handle = handle;
+
+	list = &acpi_dev->power.states[ACPI_STATE_D0].resources;
+
+	for (i = 0; i < list->count; i++) {
+		ret = __acpi_power_resource_register_device(powered_device,
+			list->handles[i]);
+
+		if (ret) {
+			acpi_power_resource_unregister_device(dev, handle);
+			break;
+		}
+	}
+
+	return ret;
+
+no_power_resource:
+	printk(KERN_WARNING PREFIX "Invalid Power Resource to register!");
+	return -ENODEV;
+}
+
 /**
  * acpi_device_sleep_wake - execute _DSW (Device Sleep Wake) or (deprecated in
  *                          ACPI 3.0) _PSW (Power State Wake)
@@ -500,14 +662,14 @@ int acpi_power_transition(struct acpi_device *device, int state)
 {
 	int result;
 
-	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3))
+	if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
 		return -EINVAL;
 
 	if (device->power.state == state)
 		return 0;
 
 	if ((device->power.state < ACPI_STATE_D0)
-	    || (device->power.state > ACPI_STATE_D3))
+	    || (device->power.state > ACPI_STATE_D3_COLD))
 		return -ENODEV;
 
 	/* TBD: Resources must be ordered. */
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 8ae05ce18500..0734086537b8 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -46,7 +46,6 @@
 #include <linux/slab.h>
 
 #include <asm/io.h>
-#include <asm/system.h>
 #include <asm/cpu.h>
 #include <asm/delay.h>
 #include <asm/uaccess.h>
@@ -68,6 +67,7 @@
 #define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
 #define ACPI_PROCESSOR_NOTIFY_POWER	0x81
 #define ACPI_PROCESSOR_NOTIFY_THROTTLING	0x82
+#define ACPI_PROCESSOR_DEVICE_HID	"ACPI0007"
 
 #define ACPI_PROCESSOR_LIMIT_USER	0
 #define ACPI_PROCESSOR_LIMIT_THERMAL	1
@@ -88,7 +88,7 @@ static int acpi_processor_start(struct acpi_processor *pr);
 
 static const struct acpi_device_id processor_device_ids[] = {
 	{ACPI_PROCESSOR_OBJECT_HID, 0},
-	{"ACPI0007", 0},
+	{ACPI_PROCESSOR_DEVICE_HID, 0},
 	{"", 0},
 };
 MODULE_DEVICE_TABLE(acpi, processor_device_ids);
@@ -474,6 +474,7 @@ static __ref int acpi_processor_start(struct acpi_processor *pr)
 
 #ifdef CONFIG_CPU_FREQ
 	acpi_processor_ppc_has_changed(pr, 0);
+	acpi_processor_load_module(pr);
 #endif
 	acpi_processor_get_throttling_info(pr);
 	acpi_processor_get_limit_info(pr);
@@ -535,8 +536,8 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
 		return -ENOMEM;
 
 	if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
-		kfree(pr);
-		return -ENOMEM;
+		result = -ENOMEM;
+		goto err_free_pr;
 	}
 
 	pr->handle = device->handle;
@@ -576,7 +577,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
 	dev = get_cpu_device(pr->id);
 	if (sysfs_create_link(&device->dev.kobj, &dev->kobj, "sysdev")) {
 		result = -EFAULT;
-		goto err_free_cpumask;
+		goto err_clear_processor;
 	}
 
 	/*
@@ -594,9 +595,15 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
 
 err_remove_sysfs:
 	sysfs_remove_link(&device->dev.kobj, "sysdev");
+err_clear_processor:
+	/*
+	 * processor_device_array is not cleared to allow checks for buggy BIOS
+	 */ 
+	per_cpu(processors, pr->id) = NULL;
 err_free_cpumask:
 	free_cpumask_var(pr->throttling.shared_cpu_map);
-
+err_free_pr:
+	kfree(pr);
 	return result;
 }
 
@@ -741,20 +748,46 @@ static void acpi_processor_hotplug_notify(acpi_handle handle,
 	return;
 }
 
+static acpi_status is_processor_device(acpi_handle handle)
+{
+	struct acpi_device_info *info;
+	char *hid;
+	acpi_status status;
+
+	status = acpi_get_object_info(handle, &info);
+	if (ACPI_FAILURE(status))
+		return status;
+
+	if (info->type == ACPI_TYPE_PROCESSOR) {
+		kfree(info);
+		return AE_OK;	/* found a processor object */
+	}
+
+	if (!(info->valid & ACPI_VALID_HID)) {
+		kfree(info);
+		return AE_ERROR;
+	}
+
+	hid = info->hardware_id.string;
+	if ((hid == NULL) || strcmp(hid, ACPI_PROCESSOR_DEVICE_HID)) {
+		kfree(info);
+		return AE_ERROR;
+	}
+
+	kfree(info);
+	return AE_OK;	/* found a processor device object */
+}
+
 static acpi_status
 processor_walk_namespace_cb(acpi_handle handle,
 			    u32 lvl, void *context, void **rv)
 {
 	acpi_status status;
 	int *action = context;
-	acpi_object_type type = 0;
 
-	status = acpi_get_type(handle, &type);
+	status = is_processor_device(handle);
 	if (ACPI_FAILURE(status))
-		return (AE_OK);
-
-	if (type != ACPI_TYPE_PROCESSOR)
-		return (AE_OK);
+		return AE_OK;	/* not a processor; continue to walk */
 
 	switch (*action) {
 	case INSTALL_NOTIFY_HANDLER:
@@ -772,7 +805,8 @@ processor_walk_namespace_cb(acpi_handle handle,
 		break;
 	}
 
-	return (AE_OK);
+	/* found a processor; skip walking underneath */
+	return AE_CTRL_DEPTH;
 }
 
 static acpi_status acpi_processor_hotadd_init(struct acpi_processor *pr)
@@ -830,7 +864,7 @@ void acpi_processor_install_hotplug_notify(void)
 {
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 	int action = INSTALL_NOTIFY_HANDLER;
-	acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
+	acpi_walk_namespace(ACPI_TYPE_ANY,
 			    ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
 			    processor_walk_namespace_cb, NULL, &action, NULL);
@@ -843,7 +877,7 @@ void acpi_processor_uninstall_hotplug_notify(void)
 {
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 	int action = UNINSTALL_NOTIFY_HANDLER;
-	acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
+	acpi_walk_namespace(ACPI_TYPE_ANY,
 			    ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
 			    processor_walk_namespace_cb, NULL, &action, NULL);
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 0e8e2de2ed3e..f3decb30223f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -770,6 +770,35 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
 	return index;
 }
 
+
+/**
+ * acpi_idle_play_dead - enters an ACPI state for long-term idle (i.e. off-lining)
+ * @dev: the target CPU
+ * @index: the index of suggested state
+ */
+static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
+{
+	struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
+	struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
+
+	ACPI_FLUSH_CPU_CACHE();
+
+	while (1) {
+
+		if (cx->entry_method == ACPI_CSTATE_HALT)
+			safe_halt();
+		else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) {
+			inb(cx->address);
+			/* See comment in acpi_idle_do_entry() */
+			inl(acpi_gbl_FADT.xpm_timer_block.address);
+		} else
+			return -ENODEV;
+	}
+
+	/* Never reached */
+	return 0;
+}
+
 /**
  * acpi_idle_enter_simple - enters an ACPI state without BM handling
  * @dev: the target CPU
@@ -1077,12 +1106,14 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
 				state->flags |= CPUIDLE_FLAG_TIME_VALID;
 
 			state->enter = acpi_idle_enter_c1;
+			state->enter_dead = acpi_idle_play_dead;
 			drv->safe_state_index = count;
 			break;
 
 			case ACPI_STATE_C2:
 			state->flags |= CPUIDLE_FLAG_TIME_VALID;
 			state->enter = acpi_idle_enter_simple;
+			state->enter_dead = acpi_idle_play_dead;
 			drv->safe_state_index = count;
 			break;
 
@@ -1159,8 +1190,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 	 * to make the code that updates C-States be called once.
 	 */
 
-	if (smp_processor_id() == 0 &&
-			cpuidle_get_driver() == &acpi_idle_driver) {
+	if (pr->id == 0 && cpuidle_get_driver() == &acpi_idle_driver) {
 
 		cpuidle_pause_and_lock();
 		/* Protect against cpu-hotplug */
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 85b32376dad7..0af48a8554cd 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -240,6 +240,28 @@ void acpi_processor_ppc_exit(void)
 	acpi_processor_ppc_status &= ~PPC_REGISTERED;
 }
 
+/*
+ * Do a quick check if the systems looks like it should use ACPI
+ * cpufreq. We look at a _PCT method being available, but don't
+ * do a whole lot of sanity checks.
+ */
+void acpi_processor_load_module(struct acpi_processor *pr)
+{
+	static int requested;
+	acpi_status status = 0;
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+
+	if (!arch_has_acpi_pdc() || requested)
+		return;
+	status = acpi_evaluate_object(pr->handle, "_PCT", NULL, &buffer);
+	if (!ACPI_FAILURE(status)) {
+		printk(KERN_INFO PREFIX "Requesting acpi_cpufreq\n");
+		request_module_nowait("acpi_cpufreq");
+		requested = 1;
+	}
+	kfree(buffer.pointer);
+}
+
 static int acpi_processor_get_performance_control(struct acpi_processor *pr)
 {
 	int result = 0;
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index 3b599abf2b40..641b5450a0db 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -57,6 +57,27 @@ ACPI_MODULE_NAME("processor_thermal");
 static DEFINE_PER_CPU(unsigned int, cpufreq_thermal_reduction_pctg);
 static unsigned int acpi_thermal_cpufreq_is_init = 0;
 
+#define reduction_pctg(cpu) \
+	per_cpu(cpufreq_thermal_reduction_pctg, phys_package_first_cpu(cpu))
+
+/*
+ * Emulate "per package data" using per cpu data (which should really be
+ * provided elsewhere)
+ *
+ * Note we can lose a CPU on cpu hotunplug, in this case we forget the state
+ * temporarily. Fortunately that's not a big issue here (I hope)
+ */
+static int phys_package_first_cpu(int cpu)
+{
+	int i;
+	int id = topology_physical_package_id(cpu);
+
+	for_each_online_cpu(i)
+		if (topology_physical_package_id(i) == id)
+			return i;
+	return 0;
+}
+
 static int cpu_has_cpufreq(unsigned int cpu)
 {
 	struct cpufreq_policy policy;
@@ -76,7 +97,7 @@ static int acpi_thermal_cpufreq_notifier(struct notifier_block *nb,
 
 	max_freq = (
 	    policy->cpuinfo.max_freq *
-	    (100 - per_cpu(cpufreq_thermal_reduction_pctg, policy->cpu) * 20)
+	    (100 - reduction_pctg(policy->cpu) * 20)
 	) / 100;
 
 	cpufreq_verify_within_limits(policy, 0, max_freq);
@@ -102,16 +123,28 @@ static int cpufreq_get_cur_state(unsigned int cpu)
 	if (!cpu_has_cpufreq(cpu))
 		return 0;
 
-	return per_cpu(cpufreq_thermal_reduction_pctg, cpu);
+	return reduction_pctg(cpu);
 }
 
 static int cpufreq_set_cur_state(unsigned int cpu, int state)
 {
+	int i;
+
 	if (!cpu_has_cpufreq(cpu))
 		return 0;
 
-	per_cpu(cpufreq_thermal_reduction_pctg, cpu) = state;
-	cpufreq_update_policy(cpu);
+	reduction_pctg(cpu) = state;
+
+	/*
+	 * Update all the CPUs in the same package because they all
+	 * contribute to the temperature and often share the same
+	 * frequency.
+	 */
+	for_each_online_cpu(i) {
+		if (topology_physical_package_id(i) ==
+		    topology_physical_package_id(cpu))
+			cpufreq_update_policy(i);
+	}
 	return 0;
 }
 
@@ -119,10 +152,6 @@ void acpi_thermal_cpufreq_init(void)
 {
 	int i;
 
-	for (i = 0; i < nr_cpu_ids; i++)
-		if (cpu_present(i))
-			per_cpu(cpufreq_thermal_reduction_pctg, i) = 0;
-
 	i = cpufreq_register_notifier(&acpi_thermal_cpufreq_notifier_block,
 				      CPUFREQ_POLICY_NOTIFIER);
 	if (!i)
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 605a2954ef17..1d02b7b5ade0 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -769,7 +769,7 @@ static int acpi_read_throttling_status(struct acpi_processor *pr,
 					u64 *value)
 {
 	u32 bit_width, bit_offset;
-	u64 ptc_value;
+	u32 ptc_value;
 	u64 ptc_mask;
 	struct acpi_processor_throttling *throttling;
 	int ret = -1;
@@ -777,12 +777,11 @@ static int acpi_read_throttling_status(struct acpi_processor *pr,
 	throttling = &pr->throttling;
 	switch (throttling->status_register.space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_IO:
-		ptc_value = 0;
 		bit_width = throttling->status_register.bit_width;
 		bit_offset = throttling->status_register.bit_offset;
 
 		acpi_os_read_port((acpi_io_address) throttling->status_register.
-				  address, (u32 *) &ptc_value,
+				  address, &ptc_value,
 				  (u32) (bit_width + bit_offset));
 		ptc_mask = (1 << bit_width) - 1;
 		*value = (u64) ((ptc_value >> bit_offset) & ptc_mask);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 8ab80bafe3f1..767e2dcb9616 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -880,18 +880,22 @@ static int acpi_bus_get_power_flags(struct acpi_device *device)
 			int j;
 
 			device->power.flags.power_resources = 1;
-			ps->flags.valid = 1;
 			for (j = 0; j < ps->resources.count; j++)
 				acpi_bus_add_power_resource(ps->resources.handles[j]);
 		}
 
+		/* The exist of _PR3 indicates D3Cold support */
+		if (i == ACPI_STATE_D3) {
+			status = acpi_get_handle(device->handle, object_name, &handle);
+			if (ACPI_SUCCESS(status))
+				device->power.states[ACPI_STATE_D3_COLD].flags.valid = 1;
+		}
+
 		/* Evaluate "_PSx" to see if we can do explicit sets */
 		object_name[2] = 'S';
 		status = acpi_get_handle(device->handle, object_name, &handle);
-		if (ACPI_SUCCESS(status)) {
+		if (ACPI_SUCCESS(status))
 			ps->flags.explicit_set = 1;
-			ps->flags.valid = 1;
-		}
 
 		/* State is valid if we have some power control */
 		if (ps->resources.count || ps->flags.explicit_set)
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index ca191ff97844..1d661b5c3287 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -17,6 +17,8 @@
 #include <linux/suspend.h>
 #include <linux/reboot.h>
 #include <linux/acpi.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
 
 #include <asm/io.h>
 
@@ -26,6 +28,24 @@
 #include "internal.h"
 #include "sleep.h"
 
+static unsigned int gts, bfs;
+module_param(gts, uint, 0644);
+module_param(bfs, uint, 0644);
+MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
+MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
+
+static u8 wake_sleep_flags(void)
+{
+	u8 flags = ACPI_NO_OPTIONAL_METHODS;
+
+	if (gts)
+		flags |= ACPI_EXECUTE_GTS;
+	if (bfs)
+		flags |= ACPI_EXECUTE_BFS;
+
+	return flags;
+}
+
 static u8 sleep_states[ACPI_S_STATE_COUNT];
 
 static void acpi_sleep_tts_switch(u32 acpi_state)
@@ -243,6 +263,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 {
 	acpi_status status = AE_OK;
 	u32 acpi_state = acpi_target_sleep_state;
+	u8 flags = wake_sleep_flags();
 	int error;
 
 	ACPI_FLUSH_CPU_CACHE();
@@ -250,7 +271,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	switch (acpi_state) {
 	case ACPI_STATE_S1:
 		barrier();
-		status = acpi_enter_sleep_state(acpi_state);
+		status = acpi_enter_sleep_state(acpi_state, flags);
 		break;
 
 	case ACPI_STATE_S3:
@@ -265,7 +286,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1);
 
 	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(acpi_state);
+	acpi_leave_sleep_state_prep(acpi_state, flags);
 
 	/* ACPI 3.0 specs (P62) says that it's the responsibility
 	 * of the OSPM to clear the status bit [ implying that the
@@ -529,27 +550,30 @@ static int acpi_hibernation_begin(void)
 
 static int acpi_hibernation_enter(void)
 {
+	u8 flags = wake_sleep_flags();
 	acpi_status status = AE_OK;
 
 	ACPI_FLUSH_CPU_CACHE();
 
 	/* This shouldn't return.  If it returns, we have a problem */
-	status = acpi_enter_sleep_state(ACPI_STATE_S4);
+	status = acpi_enter_sleep_state(ACPI_STATE_S4, flags);
 	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
+	acpi_leave_sleep_state_prep(ACPI_STATE_S4, flags);
 
 	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
 static void acpi_hibernation_leave(void)
 {
+	u8 flags = wake_sleep_flags();
+
 	/*
 	 * If ACPI is not enabled by the BIOS and the boot kernel, we need to
 	 * enable it here.
 	 */
 	acpi_enable();
 	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
+	acpi_leave_sleep_state_prep(ACPI_STATE_S4, flags);
 	/* Check the hardware signature */
 	if (facs && s4_hardware_signature != facs->hardware_signature) {
 		printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
@@ -730,6 +754,40 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p)
 
 #ifdef CONFIG_PM_SLEEP
 /**
+ * acpi_pm_device_run_wake - Enable/disable wake-up for given device.
+ * @phys_dev: Device to enable/disable the platform to wake-up the system for.
+ * @enable: Whether enable or disable the wake-up functionality.
+ *
+ * Find the ACPI device object corresponding to @pci_dev and try to
+ * enable/disable the GPE associated with it.
+ */
+int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
+{
+	struct acpi_device *dev;
+	acpi_handle handle;
+
+	if (!device_run_wake(phys_dev))
+		return -EINVAL;
+
+	handle = DEVICE_ACPI_HANDLE(phys_dev);
+	if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &dev))) {
+		dev_dbg(phys_dev, "ACPI handle has no context in %s!\n",
+			__func__);
+		return -ENODEV;
+	}
+
+	if (enable) {
+		acpi_enable_wakeup_device_power(dev, ACPI_STATE_S0);
+		acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number);
+	} else {
+		acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number);
+		acpi_disable_wakeup_device_power(dev);
+	}
+
+	return 0;
+}
+
+/**
  *	acpi_pm_device_sleep_wake - enable or disable the system wake-up
  *                                  capability of given device
  *	@dev: device to handle
@@ -770,10 +828,12 @@ static void acpi_power_off_prepare(void)
 
 static void acpi_power_off(void)
 {
+	u8 flags = wake_sleep_flags();
+
 	/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
 	printk(KERN_DEBUG "%s called\n", __func__);
 	local_irq_disable();
-	acpi_enter_sleep_state(ACPI_STATE_S5);
+	acpi_enter_sleep_state(ACPI_STATE_S5, flags);
 }
 
 /*
@@ -788,13 +848,13 @@ static void __init acpi_gts_bfs_check(void)
 {
 	acpi_handle dummy;
 
-	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_NAME__GTS, &dummy)))
+	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_PATHNAME__GTS, &dummy)))
 	{
 		printk(KERN_NOTICE PREFIX "BIOS offers _GTS\n");
 		printk(KERN_NOTICE PREFIX "If \"acpi.gts=1\" improves suspend, "
 			"please notify linux-acpi@vger.kernel.org\n");
 	}
-	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_NAME__BFS, &dummy)))
+	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_PATHNAME__BFS, &dummy)))
 	{
 		printk(KERN_NOTICE PREFIX "BIOS offers _BFS\n");
 		printk(KERN_NOTICE PREFIX "If \"acpi.bfs=1\" improves resume, "
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 48fbc647b178..7dbebea1ec31 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -941,13 +941,13 @@ static int acpi_thermal_get_info(struct acpi_thermal *tz)
 	if (!tz)
 		return -EINVAL;
 
-	/* Get temperature [_TMP] (required) */
-	result = acpi_thermal_get_temperature(tz);
+	/* Get trip points [_CRT, _PSV, etc.] (required) */
+	result = acpi_thermal_get_trip_points(tz);
 	if (result)
 		return result;
 
-	/* Get trip points [_CRT, _PSV, etc.] (required) */
-	result = acpi_thermal_get_trip_points(tz);
+	/* Get temperature [_TMP] (required) */
+	result = acpi_thermal_get_temperature(tz);
 	if (result)
 		return result;
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index eaef02afc7cf..9577b6fa2650 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -548,27 +548,27 @@ acpi_video_device_EDID(struct acpi_video_device *device,
  *		1. 	The system BIOS should NOT automatically control the brightness 
  *			level of the LCD when the power changes from AC to DC.
  * Return Value:
- * 		-1	wrong arg.
+ *		-EINVAL	wrong arg.
  */
 
 static int
 acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)
 {
-	u64 status = 0;
+	acpi_status status;
 	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 	struct acpi_object_list args = { 1, &arg0 };
 
 
-	if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) {
-		status = -1;
-		goto Failed;
-	}
+	if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1)
+		return -EINVAL;
 	arg0.integer.value = (lcd_flag << 2) | bios_flag;
 	video->dos_setting = arg0.integer.value;
-	acpi_evaluate_object(video->device->handle, "_DOS", &args, NULL);
+	status = acpi_evaluate_object(video->device->handle, "_DOS",
+		&args, NULL);
+	if (ACPI_FAILURE(status))
+		return -EIO;
 
-      Failed:
-	return status;
+	return 0;
 }
 
 /*
@@ -1343,15 +1343,17 @@ static int
 acpi_video_bus_get_devices(struct acpi_video_bus *video,
 			   struct acpi_device *device)
 {
-	int status = 0;
+	int status;
 	struct acpi_device *dev;
 
-	acpi_video_device_enumerate(video);
+	status = acpi_video_device_enumerate(video);
+	if (status)
+		return status;
 
 	list_for_each_entry(dev, &device->children, node) {
 
 		status = acpi_video_bus_get_one_device(dev, video);
-		if (ACPI_FAILURE(status)) {
+		if (status) {
 			printk(KERN_WARNING PREFIX
 					"Can't attach device\n");
 			continue;
@@ -1653,15 +1655,20 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	mutex_init(&video->device_list_lock);
 	INIT_LIST_HEAD(&video->video_device_list);
 
-	acpi_video_bus_get_devices(video, device);
-	acpi_video_bus_start_devices(video);
+	error = acpi_video_bus_get_devices(video, device);
+	if (error)
+		goto err_free_video;
 
 	video->input = input = input_allocate_device();
 	if (!input) {
 		error = -ENOMEM;
-		goto err_stop_video;
+		goto err_put_video;
 	}
 
+	error = acpi_video_bus_start_devices(video);
+	if (error)
+		goto err_free_input_dev;
+
 	snprintf(video->phys, sizeof(video->phys),
 		"%s/video/input0", acpi_device_hid(video->device));
 
@@ -1682,7 +1689,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
 
 	error = input_register_device(input);
 	if (error)
-		goto err_free_input_dev;
+		goto err_stop_video;
 
 	printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s  rom: %s  post: %s)\n",
 	       ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
@@ -1692,14 +1699,19 @@ static int acpi_video_bus_add(struct acpi_device *device)
 
 	video->pm_nb.notifier_call = acpi_video_resume;
 	video->pm_nb.priority = 0;
-	register_pm_notifier(&video->pm_nb);
+	error = register_pm_notifier(&video->pm_nb);
+	if (error)
+		goto err_unregister_input_dev;
 
 	return 0;
 
- err_free_input_dev:
-	input_free_device(input);
+ err_unregister_input_dev:
+	input_unregister_device(input);
  err_stop_video:
 	acpi_video_bus_stop_devices(video);
+ err_free_input_dev:
+	input_free_device(input);
+ err_put_video:
 	acpi_video_bus_put_devices(video);
 	kfree(video->attached_array);
  err_free_video:
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index f3f0fe7e255a..45d8097ef4cf 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -23,7 +23,7 @@
  * Depending on whether ACPI graphics extensions (cmp. ACPI spec Appendix B)
  * are available, video.ko should be used to handle the device.
  *
- * Otherwise vendor specific drivers like thinkpad_acpi, asus_acpi,
+ * Otherwise vendor specific drivers like thinkpad_acpi, asus-laptop,
  * sony_acpi,... can take care about backlight brightness.
  *
  * If CONFIG_ACPI_VIDEO is neither set as "compiled in" (y) nor as a module (m)