Merge branch 'acpica'

* acpica: (63 commits)
  ACPICA: Namespace: Remove _PRP method support.
  ACPI: Fix x86 regression related to early mapping size limitation
  ACPICA: Tables: Add mechanism to control early table checksum verification.
  ACPICA: acpidump: Fix repetitive table dump in -n mode.
  ACPI: Clean up acpi_os_map/unmap_memory() to eliminate __iomem.
  ACPICA: Clean up redudant definitions already defined elsewhere
  ACPICA: Linux headers: Add <asm/acenv.h> to remove mis-ordered inclusion of <asm/acpi.h>
  ACPICA: Linux headers: Add <acpi/platform/aclinuxex.h>
  ACPICA: Linux headers: Remove ACPI_PREEMPTION_POINT() due to no usages.
  ACPICA: Update version to 20140424.
  ACPICA: Comment/format update, no functional change.
  ACPICA: Events: Update GPE handling and initialization code.
  ACPICA: Remove extraneous error message for large number of GPEs.
  ACPICA: Tables: Remove old mechanism to validate if XSDT contains NULL entries.
  ACPICA: Tables: Add new mechanism to skip NULL entries in RSDT and XSDT.
  ACPICA: acpidump: Add support to force using RSDT.
  ACPICA: Back port of improvements on exception code.
  ACPICA: Back port of _PRP update.
  ACPICA: acpidump: Fix truncated RSDP signature validation.
  ACPICA: Linux header: Add support for stubbed externals.
  ...

36 files changed, 1738 insertions, 1173 deletions

diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
index c4a5d87..1853341 100644
--- a/drivers/acpi/acpi_extlog.c
+++ b/drivers/acpi/acpi_extlog.c
@@ -220,13 +220,13 @@ static int __init extlog_init(void)
 		goto err;
 	}
 
-	extlog_l1_hdr = acpi_os_map_memory(l1_dirbase, l1_hdr_size);
+	extlog_l1_hdr = acpi_os_map_iomem(l1_dirbase, l1_hdr_size);
 	l1_head = (struct extlog_l1_head *)extlog_l1_hdr;
 	l1_size = l1_head->total_len;
 	l1_percpu_entry = l1_head->entries;
 	elog_base = l1_head->elog_base;
 	elog_size = l1_head->elog_len;
-	acpi_os_unmap_memory(extlog_l1_hdr, l1_hdr_size);
+	acpi_os_unmap_iomem(extlog_l1_hdr, l1_hdr_size);
 	release_mem_region(l1_dirbase, l1_hdr_size);
 
 	/* remap L1 header again based on completed information */
@@ -237,7 +237,7 @@ static int __init extlog_init(void)
 			(unsigned long long)l1_dirbase + l1_size);
 		goto err;
 	}
-	extlog_l1_addr = acpi_os_map_memory(l1_dirbase, l1_size);
+	extlog_l1_addr = acpi_os_map_iomem(l1_dirbase, l1_size);
 	l1_entry_base = (u64 *)((u8 *)extlog_l1_addr + l1_hdr_size);
 
 	/* remap elog table */
@@ -248,7 +248,7 @@ static int __init extlog_init(void)
 			(unsigned long long)elog_base + elog_size);
 		goto err_release_l1_dir;
 	}
-	elog_addr = acpi_os_map_memory(elog_base, elog_size);
+	elog_addr = acpi_os_map_iomem(elog_base, elog_size);
 
 	rc = -ENOMEM;
 	/* allocate buffer to save elog record */
@@ -270,11 +270,11 @@ static int __init extlog_init(void)
 
 err_release_elog:
 	if (elog_addr)
-		acpi_os_unmap_memory(elog_addr, elog_size);
+		acpi_os_unmap_iomem(elog_addr, elog_size);
 	release_mem_region(elog_base, elog_size);
 err_release_l1_dir:
 	if (extlog_l1_addr)
-		acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+		acpi_os_unmap_iomem(extlog_l1_addr, l1_size);
 	release_mem_region(l1_dirbase, l1_size);
 err:
 	pr_warn(FW_BUG "Extended error log disabled because of problems parsing f/w tables\n");
@@ -287,9 +287,9 @@ static void __exit extlog_exit(void)
 	mce_unregister_decode_chain(&extlog_mce_dec);
 	((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN;
 	if (extlog_l1_addr)
-		acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+		acpi_os_unmap_iomem(extlog_l1_addr, l1_size);
 	if (elog_addr)
-		acpi_os_unmap_memory(elog_addr, elog_size);
+		acpi_os_unmap_iomem(elog_addr, elog_size);
 	release_mem_region(elog_base, elog_size);
 	release_mem_region(l1_dirbase, l1_size);
 	kfree(elog_buf);
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index b7ed86a..8bb43f0 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -135,6 +135,7 @@ acpi-y +=		\
 	rsxface.o
 
 acpi-y +=		\
+	tbdata.o	\
 	tbfadt.o	\
 	tbfind.o	\
 	tbinstal.o	\
diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h
new file mode 100644
index 0000000..8698ffb
--- /dev/null
+++ b/drivers/acpi/acpica/acapps.h
@@ -0,0 +1,170 @@
+/******************************************************************************
+ *
+ * Module Name: acapps - common include for ACPI applications/tools
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, 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 _ACAPPS
+#define _ACAPPS
+
+/* Common info for tool signons */
+
+#define ACPICA_NAME                 "Intel ACPI Component Architecture"
+#define ACPICA_COPYRIGHT            "Copyright (c) 2000 - 2014 Intel Corporation"
+
+#if ACPI_MACHINE_WIDTH == 64
+#define ACPI_WIDTH          "-64"
+
+#elif ACPI_MACHINE_WIDTH == 32
+#define ACPI_WIDTH          "-32"
+
+#else
+#error unknown ACPI_MACHINE_WIDTH
+#define ACPI_WIDTH          "-??"
+
+#endif
+
+/* Macros for signons and file headers */
+
+#define ACPI_COMMON_SIGNON(utility_name) \
+	"\n%s\n%s version %8.8X%s [%s]\n%s\n\n", \
+	ACPICA_NAME, \
+	utility_name, ((u32) ACPI_CA_VERSION), ACPI_WIDTH, __DATE__, \
+	ACPICA_COPYRIGHT
+
+#define ACPI_COMMON_HEADER(utility_name, prefix) \
+	"%s%s\n%s%s version %8.8X%s [%s]\n%s%s\n%s\n", \
+	prefix, ACPICA_NAME, \
+	prefix, utility_name, ((u32) ACPI_CA_VERSION), ACPI_WIDTH, __DATE__, \
+	prefix, ACPICA_COPYRIGHT, \
+	prefix
+
+/* Macros for usage messages */
+
+#define ACPI_USAGE_HEADER(usage) \
+	printf ("Usage: %s\nOptions:\n", usage);
+
+#define ACPI_OPTION(name, description) \
+	printf ("  %-18s%s\n", name, description);
+
+#define FILE_SUFFIX_DISASSEMBLY     "dsl"
+#define ACPI_TABLE_FILE_SUFFIX      ".dat"
+
+/*
+ * getopt
+ */
+int acpi_getopt(int argc, char **argv, char *opts);
+
+int acpi_getopt_argument(int argc, char **argv);
+
+extern int acpi_gbl_optind;
+extern int acpi_gbl_opterr;
+extern int acpi_gbl_sub_opt_char;
+extern char *acpi_gbl_optarg;
+
+/*
+ * cmfsize - Common get file size function
+ */
+u32 cm_get_file_size(FILE * file);
+
+#ifndef ACPI_DUMP_APP
+/*
+ * adisasm
+ */
+acpi_status
+ad_aml_disassemble(u8 out_to_file,
+		   char *filename, char *prefix, char **out_filename);
+
+void ad_print_statistics(void);
+
+acpi_status ad_find_dsdt(u8 **dsdt_ptr, u32 *dsdt_length);
+
+void ad_dump_tables(void);
+
+acpi_status ad_get_local_tables(void);
+
+acpi_status
+ad_parse_table(struct acpi_table_header *table,
+	       acpi_owner_id * owner_id, u8 load_table, u8 external);
+
+acpi_status ad_display_tables(char *filename, struct acpi_table_header *table);
+
+acpi_status ad_display_statistics(void);
+
+/*
+ * adwalk
+ */
+void
+acpi_dm_cross_reference_namespace(union acpi_parse_object *parse_tree_root,
+				  struct acpi_namespace_node *namespace_root,
+				  acpi_owner_id owner_id);
+
+void acpi_dm_dump_tree(union acpi_parse_object *origin);
+
+void acpi_dm_find_orphan_methods(union acpi_parse_object *origin);
+
+void
+acpi_dm_finish_namespace_load(union acpi_parse_object *parse_tree_root,
+			      struct acpi_namespace_node *namespace_root,
+			      acpi_owner_id owner_id);
+
+void
+acpi_dm_convert_resource_indexes(union acpi_parse_object *parse_tree_root,
+				 struct acpi_namespace_node *namespace_root);
+
+/*
+ * adfile
+ */
+acpi_status ad_initialize(void);
+
+char *fl_generate_filename(char *input_filename, char *suffix);
+
+acpi_status
+fl_split_input_pathname(char *input_path,
+			char **out_directory_path, char **out_filename);
+
+char *ad_generate_filename(char *prefix, char *table_id);
+
+void
+ad_write_table(struct acpi_table_header *table,
+	       u32 length, char *table_name, char *oem_table_id);
+#endif
+
+#endif				/* _ACAPPS */
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 68ec61f..7a7811a 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -104,9 +104,10 @@ acpi_status acpi_ev_finish_gpe(struct acpi_gpe_event_info *gpe_event_info);
  */
 acpi_status
 acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
-			 struct acpi_generic_address *gpe_block_address,
+			 u64 address,
+			 u8 space_id,
 			 u32 register_count,
-			 u8 gpe_block_base_number,
+			 u16 gpe_block_base_number,
 			 u32 interrupt_number,
 			 struct acpi_gpe_block_info **return_gpe_block);
 
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index a08a448..115eedc 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -44,144 +44,14 @@
 #ifndef __ACGLOBAL_H__
 #define __ACGLOBAL_H__
 
-/*
- * Ensure that the globals are actually defined and initialized only once.
- *
- * The use of these macros allows a single list of globals (here) in order
- * to simplify maintenance of the code.
- */
-#ifdef DEFINE_ACPI_GLOBALS
-#define ACPI_GLOBAL(type,name) \
-	extern type name; \
-	type name
-
-#define ACPI_INIT_GLOBAL(type,name,value) \
-	type name=value
-
-#else
-#define ACPI_GLOBAL(type,name) \
-	extern type name
-
-#define ACPI_INIT_GLOBAL(type,name,value) \
-	extern type name
-#endif
-
-#ifdef DEFINE_ACPI_GLOBALS
-
-/* Public globals, available from outside ACPICA subsystem */
-
 /*****************************************************************************
  *
- * Runtime configuration (static defaults that can be overriden at runtime)
+ * Globals related to the ACPI tables
  *
  ****************************************************************************/
 
-/*
- * Enable "slack" in the AML interpreter?  Default is FALSE, and the
- * interpreter strictly follows the ACPI specification. Setting to TRUE
- * allows the interpreter to ignore certain errors and/or bad AML constructs.
- *
- * Currently, these features are enabled by this flag:
- *
- * 1) Allow "implicit return" of last value in a control method
- * 2) Allow access beyond the end of an operation region
- * 3) Allow access to uninitialized locals/args (auto-init to integer 0)
- * 4) Allow ANY object type to be a source operand for the Store() operator
- * 5) Allow unresolved references (invalid target name) in package objects
- * 6) Enable warning messages for behavior that is not ACPI spec compliant
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_interpreter_slack, FALSE);
+/* Master list of all ACPI tables that were found in the RSDT/XSDT */
 
-/*
- * Automatically serialize all methods that create named objects? Default
- * is TRUE, meaning that all non_serialized methods are scanned once at
- * table load time to determine those that create named objects. Methods
- * that create named objects are marked Serialized in order to prevent
- * possible run-time problems if they are entered by more than one thread.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_auto_serialize_methods, TRUE);
-
-/*
- * Create the predefined _OSI method in the namespace? Default is TRUE
- * because ACPI CA is fully compatible with other ACPI implementations.
- * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_create_osi_method, TRUE);
-
-/*
- * Optionally use default values for the ACPI register widths. Set this to
- * TRUE to use the defaults, if an FADT contains incorrect widths/lengths.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_use_default_register_widths, TRUE);
-
-/*
- * Optionally enable output from the AML Debug Object.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_enable_aml_debug_object, FALSE);
-
-/*
- * Optionally copy the entire DSDT to local memory (instead of simply
- * mapping it.) There are some BIOSs that corrupt or replace the original
- * DSDT, creating the need for this option. Default is FALSE, do not copy
- * the DSDT.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_copy_dsdt_locally, FALSE);
-
-/*
- * Optionally ignore an XSDT if present and use the RSDT instead.
- * Although the ACPI specification requires that an XSDT be used instead
- * of the RSDT, the XSDT has been found to be corrupt or ill-formed on
- * some machines. Default behavior is to use the XSDT if present.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE);
-
-/*
- * Optionally use 32-bit FADT addresses if and when there is a conflict
- * (address mismatch) between the 32-bit and 64-bit versions of the
- * address. Although ACPICA adheres to the ACPI specification which
- * requires the use of the corresponding 64-bit address if it is non-zero,
- * some machines have been found to have a corrupted non-zero 64-bit
- * address. Default is TRUE, favor the 32-bit addresses.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE);
-
-/*
- * Optionally truncate I/O addresses to 16 bits. Provides compatibility
- * with other ACPI implementations. NOTE: During ACPICA initialization,
- * this value is set to TRUE if any Windows OSI strings have been
- * requested by the BIOS.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_truncate_io_addresses, FALSE);
-
-/*
- * Disable runtime checking and repair of values returned by control methods.
- * Use only if the repair is causing a problem on a particular machine.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_auto_repair, FALSE);
-
-/*
- * Optionally do not load any SSDTs from the RSDT/XSDT during initialization.
- * This can be useful for debugging ACPI problems on some machines.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_disable_ssdt_table_load, FALSE);
-
-/*
- * We keep track of the latest version of Windows that has been requested by
- * the BIOS.
- */
-ACPI_INIT_GLOBAL(u8, acpi_gbl_osi_data, 0);
-
-#endif				/* DEFINE_ACPI_GLOBALS */
-
-/*****************************************************************************
- *
- * ACPI Table globals
- *
- ****************************************************************************/
-
-/*
- * Master list of all ACPI tables that were found in the RSDT/XSDT.
- */
 ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
 
 /* DSDT information. Used to check for DSDT corruption */
@@ -279,7 +149,6 @@ ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
 ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
 ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
 ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
-ACPI_GLOBAL(struct acpi_walk_state *, acpi_gbl_breakpoint_walk);
 ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
 ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
 
@@ -296,7 +165,6 @@ ACPI_GLOBAL(u8, acpi_gbl_reg_methods_executed);
 /* Misc */
 
 ACPI_GLOBAL(u32, acpi_gbl_original_mode);
-ACPI_GLOBAL(u32, acpi_gbl_rsdp_original_location);
 ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
 ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
 ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
@@ -483,11 +351,6 @@ ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
 ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
 ACPI_GLOBAL(u32, acpi_gbl_num_objects);
 
-ACPI_GLOBAL(u32, acpi_gbl_size_of_parse_tree);
-ACPI_GLOBAL(u32, acpi_gbl_size_of_method_trees);
-ACPI_GLOBAL(u32, acpi_gbl_size_of_node_entries);
-ACPI_GLOBAL(u32, acpi_gbl_size_of_acpi_objects);
-
 #endif				/* ACPI_DEBUGGER */
 
 /*****************************************************************************
@@ -509,5 +372,6 @@ ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
  ****************************************************************************/
 
 extern const struct ah_predefined_name asl_predefined_info[];
+extern const struct ah_device_id asl_device_ids[];
 
 #endif				/* __ACGLOBAL_H__ */
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 52a21dafb5..91f801a 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -450,9 +450,9 @@ struct acpi_gpe_event_info {
 struct acpi_gpe_register_info {
 	struct acpi_generic_address status_address;	/* Address of status reg */
 	struct acpi_generic_address enable_address;	/* Address of enable reg */
+	u16 base_gpe_number;	/* Base GPE number for this register */
 	u8 enable_for_wake;	/* GPEs to keep enabled when sleeping */
 	u8 enable_for_run;	/* GPEs to keep enabled when running */
-	u8 base_gpe_number;	/* Base GPE number for this register */
 };
 
 /*
@@ -466,11 +466,12 @@ struct acpi_gpe_block_info {
 	struct acpi_gpe_xrupt_info *xrupt_block;	/* Backpointer to interrupt block */
 	struct acpi_gpe_register_info *register_info;	/* One per GPE register pair */
 	struct acpi_gpe_event_info *event_info;	/* One for each GPE */
-	struct acpi_generic_address block_address;	/* Base address of the block */
+	u64 address;		/* Base address of the block */
 	u32 register_count;	/* Number of register pairs in block */
 	u16 gpe_count;		/* Number of individual GPEs in block */
-	u8 block_base_number;	/* Base GPE number for this block */
-	u8 initialized;         /* TRUE if this block is initialized */
+	u16 block_base_number;	/* Base GPE number for this block */
+	u8 space_id;
+	u8 initialized;		/* TRUE if this block is initialized */
 };
 
 /* Information about GPE interrupt handlers, one per each interrupt level used for GPEs */
@@ -733,7 +734,8 @@ union acpi_parse_value {
 #define ACPI_DASM_MATCHOP               0x06	/* Parent opcode is a Match() operator */
 #define ACPI_DASM_LNOT_PREFIX           0x07	/* Start of a Lnot_equal (etc.) pair of opcodes */
 #define ACPI_DASM_LNOT_SUFFIX           0x08	/* End  of a Lnot_equal (etc.) pair of opcodes */
-#define ACPI_DASM_IGNORE                0x09	/* Not used at this time */
+#define ACPI_DASM_HID_STRING            0x09	/* String is a _HID or _CID */
+#define ACPI_DASM_IGNORE                0x0A	/* Not used at this time */
 
 /*
  * Generic operation (for example:  If, While, Store)
@@ -1147,4 +1149,9 @@ struct ah_predefined_name {
 #endif
 };
 
+struct ah_device_id {
+	char *name;
+	char *description;
+};
+
 #endif				/* __ACLOCAL_H__ */
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index a48d713..bd08817 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -586,6 +586,10 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
 	{{"_LID", METHOD_0ARGS,
 	  METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
 
+	{{"_LPD", METHOD_0ARGS,
+	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (1 Int(rev), n Pkg (2 Int) */
+	PACKAGE_INFO(ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0),
+
 	{{"_MAT", METHOD_0ARGS,
 	  METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
 
@@ -698,12 +702,6 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
 	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Refs) */
 	PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
 
-	{{"_PRP", METHOD_0ARGS,
-	  METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}},	/* Variable-length (Pkgs) each: 1 Str, 1 Int/Str/Pkg */
-	PACKAGE_INFO(ACPI_PTYPE2, ACPI_RTYPE_STRING, 1,
-		     ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING |
-		     ACPI_RTYPE_PACKAGE | ACPI_RTYPE_REFERENCE, 1, 0),
-
 	{{"_PRS", METHOD_0ARGS,
 	  METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
 
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index 5fa4b20..f148827 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -54,6 +54,31 @@ acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
 u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length);
 
 /*
+ * tbdata - table data structure management
+ */
+acpi_status acpi_tb_get_next_root_index(u32 *table_index);
+
+void
+acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
+			      acpi_physical_address address,
+			      u8 flags, struct acpi_table_header *table);
+
+acpi_status
+acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc,
+			   acpi_physical_address address, u8 flags);
+
+void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc);
+
+acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc);
+
+acpi_status
+acpi_tb_verify_temp_table(struct acpi_table_desc *table_desc, char *signature);
+
+u8 acpi_tb_is_table_loaded(u32 table_index);
+
+void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded);
+
+/*
  * tbfadt - FADT parse/convert/validate
  */
 void acpi_tb_parse_fadt(u32 table_index);
@@ -72,22 +97,32 @@ acpi_tb_find_table(char *signature,
  */
 acpi_status acpi_tb_resize_root_table_list(void);
 
-acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc);
+acpi_status acpi_tb_validate_table(struct acpi_table_desc *table_desc);
+
+void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc);
+
+void acpi_tb_override_table(struct acpi_table_desc *old_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_acquire_table(struct acpi_table_desc *table_desc,
+		      struct acpi_table_header **table_ptr,
+		      u32 *table_length, u8 *table_flags);
+
+void
+acpi_tb_release_table(struct acpi_table_header *table,
+		      u32 table_length, u8 table_flags);
 
 acpi_status
-acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index);
+acpi_tb_install_standard_table(acpi_physical_address address,
+			       u8 flags,
+			       u8 reload, u8 override, u32 *table_index);
 
 acpi_status
 acpi_tb_store_table(acpi_physical_address address,
 		    struct acpi_table_header *table,
 		    u32 length, u8 flags, u32 *table_index);
 
-void acpi_tb_delete_table(struct acpi_table_desc *table_desc);
+void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc);
 
 void acpi_tb_terminate(void);
 
@@ -99,10 +134,6 @@ acpi_status acpi_tb_release_owner_id(u32 table_index);
 
 acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id);
 
-u8 acpi_tb_is_table_loaded(u32 table_index);
-
-void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded);
-
 /*
  * tbutils - table manager utilities
  */
@@ -124,8 +155,13 @@ void acpi_tb_check_dsdt_header(void);
 struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index);
 
 void
-acpi_tb_install_table(acpi_physical_address address,
-		      char *signature, u32 table_index);
+acpi_tb_install_table_with_override(u32 table_index,
+				    struct acpi_table_desc *new_table_desc,
+				    u8 override);
+
+acpi_status
+acpi_tb_install_fixed_table(acpi_physical_address address,
+			    char *signature, u32 table_index);
 
 acpi_status acpi_tb_parse_root_table(acpi_physical_address rsdp_address);
 
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index ceeec0b..1e256c5 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -176,8 +176,7 @@ acpi_status acpi_ut_init_globals(void);
 
 char *acpi_ut_get_mutex_name(u32 mutex_id);
 
-const char *acpi_ut_get_notify_name(u32 notify_value);
-
+const char *acpi_ut_get_notify_name(u32 notify_value, acpi_object_type type);
 #endif
 
 char *acpi_ut_get_type_name(acpi_object_type type);
@@ -737,4 +736,11 @@ acpi_ut_method_error(const char *module_name,
 		     struct acpi_namespace_node *node,
 		     const char *path, acpi_status lookup_status);
 
+/*
+ * Utility functions for ACPI names and IDs
+ */
+const struct ah_predefined_name *acpi_ah_match_predefined_name(char *nameseg);
+
+const struct ah_device_id *acpi_ah_match_hardware_id(char *hid);
+
 #endif				/* _ACUTILS_H */
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 955f83d..48f7001 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -383,7 +383,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 			if (!(gpe_register_info->enable_for_run |
 			      gpe_register_info->enable_for_wake)) {
 				ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
-						  "Ignore disabled registers for GPE%02X-GPE%02X: "
+						  "Ignore disabled registers for GPE %02X-%02X: "
 						  "RunEnable=%02X, WakeEnable=%02X\n",
 						  gpe_register_info->
 						  base_gpe_number,
@@ -416,7 +416,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 			}
 
 			ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
-					  "Read registers for GPE%02X-GPE%02X: Status=%02X, Enable=%02X, "
+					  "Read registers for GPE %02X-%02X: Status=%02X, Enable=%02X, "
 					  "RunEnable=%02X, WakeEnable=%02X\n",
 					  gpe_register_info->base_gpe_number,
 					  gpe_register_info->base_gpe_number +
@@ -706,7 +706,8 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 		status = acpi_hw_clear_gpe(gpe_event_info);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
-					"Unable to clear GPE%02X", gpe_number));
+					"Unable to clear GPE %02X",
+					gpe_number));
 			return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
 		}
 	}
@@ -723,7 +724,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 	status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
-				"Unable to disable GPE%02X", gpe_number));
+				"Unable to disable GPE %02X", gpe_number));
 		return_UINT32(ACPI_INTERRUPT_NOT_HANDLED);
 	}
 
@@ -764,7 +765,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 					 gpe_event_info);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
-					"Unable to queue handler for GPE%02X - event disabled",
+					"Unable to queue handler for GPE %02X - event disabled",
 					gpe_number));
 		}
 		break;
@@ -776,7 +777,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device,
 		 * a GPE to be enabled if it has no handler or method.
 		 */
 		ACPI_ERROR((AE_INFO,
-			    "No handler or method for GPE%02X, disabling event",
+			    "No handler or method for GPE %02X, disabling event",
 			    gpe_number));
 
 		break;
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index caaed3c..d86699e 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -252,21 +252,17 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
 
 		/* Init the register_info for this GPE register (8 GPEs) */
 
-		this_register->base_gpe_number =
-		    (u8) (gpe_block->block_base_number +
-			  (i * ACPI_GPE_REGISTER_WIDTH));
+		this_register->base_gpe_number = (u16)
+		    (gpe_block->block_base_number +
+		     (i * ACPI_GPE_REGISTER_WIDTH));
 
-		this_register->status_address.address =
-		    gpe_block->block_address.address + i;
+		this_register->status_address.address = gpe_block->address + i;
 
 		this_register->enable_address.address =
-		    gpe_block->block_address.address + i +
-		    gpe_block->register_count;
+		    gpe_block->address + i + gpe_block->register_count;
 
-		this_register->status_address.space_id =
-		    gpe_block->block_address.space_id;
-		this_register->enable_address.space_id =
-		    gpe_block->block_address.space_id;
+		this_register->status_address.space_id = gpe_block->space_id;
+		this_register->enable_address.space_id = gpe_block->space_id;
 		this_register->status_address.bit_width =
 		    ACPI_GPE_REGISTER_WIDTH;
 		this_register->enable_address.bit_width =
@@ -334,9 +330,10 @@ error_exit:
 
 acpi_status
 acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
-			 struct acpi_generic_address *gpe_block_address,
+			 u64 address,
+			 u8 space_id,
 			 u32 register_count,
-			 u8 gpe_block_base_number,
+			 u16 gpe_block_base_number,
 			 u32 interrupt_number,
 			 struct acpi_gpe_block_info **return_gpe_block)
 {
@@ -359,15 +356,14 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
 
 	/* Initialize the new GPE block */
 
+	gpe_block->address = address;
+	gpe_block->space_id = space_id;
 	gpe_block->node = gpe_device;
 	gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH);
 	gpe_block->initialized = FALSE;
 	gpe_block->register_count = register_count;
 	gpe_block->block_base_number = gpe_block_base_number;
 
-	ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address,
-		    sizeof(struct acpi_generic_address));
-
 	/*
 	 * Create the register_info and event_info sub-structures
 	 * Note: disables and clears all GPEs in the block
@@ -408,12 +404,14 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
 	}
 
 	ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
-			      "    Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X\n",
+			      "    Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X%s\n",
 			      (u32)gpe_block->block_base_number,
 			      (u32)(gpe_block->block_base_number +
 				    (gpe_block->gpe_count - 1)),
 			      gpe_device->name.ascii, gpe_block->register_count,
-			      interrupt_number));
+			      interrupt_number,
+			      interrupt_number ==
+			      acpi_gbl_FADT.sci_interrupt ? " (SCI)" : ""));
 
 	/* Update global count of currently available GPEs */
 
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index ae779c1..49fc7ef 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -131,8 +131,10 @@ acpi_status acpi_ev_gpe_initialize(void)
 		/* Install GPE Block 0 */
 
 		status = acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
-						  &acpi_gbl_FADT.xgpe0_block,
-						  register_count0, 0,
+						  acpi_gbl_FADT.xgpe0_block.
+						  address,
+						  acpi_gbl_FADT.xgpe0_block.
+						  space_id, register_count0, 0,
 						  acpi_gbl_FADT.sci_interrupt,
 						  &acpi_gbl_gpe_fadt_blocks[0]);
 
@@ -169,8 +171,10 @@ acpi_status acpi_ev_gpe_initialize(void)
 
 			status =
 			    acpi_ev_create_gpe_block(acpi_gbl_fadt_gpe_device,
-						     &acpi_gbl_FADT.xgpe1_block,
-						     register_count1,
+						     acpi_gbl_FADT.xgpe1_block.
+						     address,
+						     acpi_gbl_FADT.xgpe1_block.
+						     space_id, register_count1,
 						     acpi_gbl_FADT.gpe1_base,
 						     acpi_gbl_FADT.
 						     sci_interrupt,
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index 5d594eb..24ea342 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -167,7 +167,8 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
 			  "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));
+			  acpi_ut_get_notify_name(notify_value, ACPI_TYPE_ANY),
+			  node));
 
 	status = acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
 				 info);
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index 4d8a709..29630e3 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -117,7 +117,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
 	ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler);
 
 	/*
-	 * We are guaranteed by the ACPI CA initialization/shutdown code that
+	 * We are guaranteed by the ACPICA initialization/shutdown code that
 	 * if this interrupt handler is installed, ACPI is enabled.
 	 */
 
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index a734b27..11e5803 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -239,7 +239,7 @@ acpi_remove_notify_handler(acpi_handle device,
 	union acpi_operand_object *obj_desc;
 	union acpi_operand_object *handler_obj;
 	union acpi_operand_object *previous_handler_obj;
-	acpi_status status;
+	acpi_status status = AE_OK;
 	u32 i;
 
 	ACPI_FUNCTION_TRACE(acpi_remove_notify_handler);
@@ -251,20 +251,17 @@ acpi_remove_notify_handler(acpi_handle device,
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Make sure all deferred notify tasks are completed */
-
-	acpi_os_wait_events_complete();
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
 	/* Root Object. Global handlers are removed here */
 
 	if (device == ACPI_ROOT_OBJECT) {
 		for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) {
 			if (handler_type & (i + 1)) {
+				status =
+				    acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+				if (ACPI_FAILURE(status)) {
+					return_ACPI_STATUS(status);
+				}
+
 				if (!acpi_gbl_global_notify[i].handler ||
 				    (acpi_gbl_global_notify[i].handler !=
 				     handler)) {
@@ -277,31 +274,40 @@ acpi_remove_notify_handler(acpi_handle device,
 
 				acpi_gbl_global_notify[i].handler = NULL;
 				acpi_gbl_global_notify[i].context = NULL;
+
+				(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+				/* Make sure all deferred notify tasks are completed */
+
+				acpi_os_wait_events_complete();
 			}
 		}
 
-		goto unlock_and_exit;
+		return_ACPI_STATUS(AE_OK);
 	}
 
 	/* All other objects: Are Notifies allowed on this object? */
 
 	if (!acpi_ev_is_notify_object(node)) {
-		status = AE_TYPE;
-		goto unlock_and_exit;
+		return_ACPI_STATUS(AE_TYPE);
 	}
 
 	/* Must have an existing internal object */
 
 	obj_desc = acpi_ns_get_attached_object(node);
 	if (!obj_desc) {
-		status = AE_NOT_EXIST;
-		goto unlock_and_exit;
+		return_ACPI_STATUS(AE_NOT_EXIST);
 	}
 
 	/* Internal object exists. Find the handler and remove it */
 
 	for (i = 0; i < ACPI_NUM_NOTIFY_TYPES; i++) {
 		if (handler_type & (i + 1)) {
+			status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+			if (ACPI_FAILURE(status)) {
+				return_ACPI_STATUS(status);
+			}
+
 			handler_obj = obj_desc->common_notify.notify_list[i];
 			previous_handler_obj = NULL;
 
@@ -329,10 +335,17 @@ acpi_remove_notify_handler(acpi_handle device,
 				    handler_obj->notify.next[i];
 			}
 
+			(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
+			/* Make sure all deferred notify tasks are completed */
+
+			acpi_os_wait_events_complete();
 			acpi_ut_remove_reference(handler_obj);
 		}
 	}
 
+	return_ACPI_STATUS(status);
+
 unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
@@ -457,6 +470,8 @@ exit:
 	return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_install_sci_handler)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_remove_sci_handler
@@ -468,7 +483,6 @@ exit:
  * DESCRIPTION: Remove a handler for a System Control Interrupt.
  *
  ******************************************************************************/
-
 acpi_status acpi_remove_sci_handler(acpi_sci_handler address)
 {
 	struct acpi_sci_handler_info *prev_sci_handler;
@@ -522,6 +536,8 @@ unlock_and_exit:
 	return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_remove_sci_handler)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_global_event_handler
@@ -537,7 +553,6 @@ unlock_and_exit:
  *              Can be used to update event counters, etc.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context)
 {
@@ -840,10 +855,6 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Make sure all deferred GPE tasks are completed */
-
-	acpi_os_wait_events_complete();
-
 	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
@@ -895,9 +906,17 @@ acpi_remove_gpe_handler(acpi_handle gpe_device,
 		(void)acpi_ev_add_gpe_reference(gpe_event_info);
 	}
 
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+	/* Make sure all deferred GPE tasks are completed */
+
+	acpi_os_wait_events_complete();
+
 	/* Now we can free the handler object */
 
 	ACPI_FREE(handler);
+	return_ACPI_STATUS(status);
 
 unlock_and_exit:
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 20a1392..cb534fa 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -599,9 +599,10 @@ acpi_install_gpe_block(acpi_handle gpe_device,
 	 * For user-installed GPE Block Devices, the gpe_block_base_number
 	 * is always zero
 	 */
-	status =
-	    acpi_ev_create_gpe_block(node, gpe_block_address, register_count, 0,
-				     interrupt_number, &gpe_block);
+	status = acpi_ev_create_gpe_block(node, gpe_block_address->address,
+					  gpe_block_address->space_id,
+					  register_count, 0, interrupt_number,
+					  &gpe_block);
 	if (ACPI_FAILURE(status)) {
 		goto unlock_and_exit;
 	}
diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c
index 8ba1464..7d29494 100644
--- a/drivers/acpi/acpica/exconfig.c
+++ b/drivers/acpi/acpica/exconfig.c
@@ -343,16 +343,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		struct acpi_walk_state *walk_state)
 {
 	union acpi_operand_object *ddb_handle;
+	struct acpi_table_header *table_header;
 	struct acpi_table_header *table;
-	struct acpi_table_desc table_desc;
 	u32 table_index;
 	acpi_status status;
 	u32 length;
 
 	ACPI_FUNCTION_TRACE(ex_load_op);
 
-	ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
-
 	/* Source Object can be either an op_region or a Buffer/Field */
 
 	switch (obj_desc->common.type) {
@@ -380,17 +378,17 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
 		/* Get the table header first so we can get the table length */
 
-		table = ACPI_ALLOCATE(sizeof(struct acpi_table_header));
-		if (!table) {
+		table_header = ACPI_ALLOCATE(sizeof(struct acpi_table_header));
+		if (!table_header) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
 		status =
 		    acpi_ex_region_read(obj_desc,
 					sizeof(struct acpi_table_header),
-					ACPI_CAST_PTR(u8, table));
-		length = table->length;
-		ACPI_FREE(table);
+					ACPI_CAST_PTR(u8, table_header));
+		length = table_header->length;
+		ACPI_FREE(table_header);
 
 		if (ACPI_FAILURE(status)) {
 			return_ACPI_STATUS(status);
@@ -420,22 +418,19 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
 		/* Allocate a buffer for the table */
 
-		table_desc.pointer = ACPI_ALLOCATE(length);
-		if (!table_desc.pointer) {
+		table = ACPI_ALLOCATE(length);
+		if (!table) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
 		/* Read the entire table */
 
 		status = acpi_ex_region_read(obj_desc, length,
-					     ACPI_CAST_PTR(u8,
-							   table_desc.pointer));
+					     ACPI_CAST_PTR(u8, table));
 		if (ACPI_FAILURE(status)) {
-			ACPI_FREE(table_desc.pointer);
+			ACPI_FREE(table);
 			return_ACPI_STATUS(status);
 		}
-
-		table_desc.address = obj_desc->region.address;
 		break;
 
 	case ACPI_TYPE_BUFFER:	/* Buffer or resolved region_field */
@@ -452,10 +447,10 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 
 		/* Get the actual table length from the table header */
 
-		table =
+		table_header =
 		    ACPI_CAST_PTR(struct acpi_table_header,
 				  obj_desc->buffer.pointer);
-		length = table->length;
+		length = table_header->length;
 
 		/* Table cannot extend beyond the buffer */
 
@@ -470,13 +465,12 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		 * Copy the table from the buffer because the buffer could be modified
 		 * or even deleted in the future
 		 */
-		table_desc.pointer = ACPI_ALLOCATE(length);
-		if (!table_desc.pointer) {
+		table = ACPI_ALLOCATE(length);
+		if (!table) {
 			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
-		ACPI_MEMCPY(table_desc.pointer, table, length);
-		table_desc.address = ACPI_TO_INTEGER(table_desc.pointer);
+		ACPI_MEMCPY(table, table_header, length);
 		break;
 
 	default:
@@ -484,27 +478,32 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		return_ACPI_STATUS(AE_AML_OPERAND_TYPE);
 	}
 
-	/* Validate table checksum (will not get validated in tb_add_table) */
-
-	status = acpi_tb_verify_checksum(table_desc.pointer, length);
-	if (ACPI_FAILURE(status)) {
-		ACPI_FREE(table_desc.pointer);
-		return_ACPI_STATUS(status);
-	}
-
-	/* Complete the table descriptor */
+	/* Install the new table into the local data structures */
 
-	table_desc.length = length;
-	table_desc.flags = ACPI_TABLE_ORIGIN_ALLOCATED;
+	ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:"));
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
 
-	/* Install the new table into the local data structures */
+	status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table),
+						ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL,
+						TRUE, TRUE, &table_index);
 
-	status = acpi_tb_add_table(&table_desc, &table_index);
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 	if (ACPI_FAILURE(status)) {
 
 		/* Delete allocated table buffer */
 
-		acpi_tb_delete_table(&table_desc);
+		ACPI_FREE(table);
+		return_ACPI_STATUS(status);
+	}
+
+	/*
+	 * Note: Now table is "INSTALLED", it must be validated before
+	 * loading.
+	 */
+	status =
+	    acpi_tb_validate_table(&acpi_gbl_root_table_list.
+				   tables[table_index]);
+	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
 
@@ -536,9 +535,6 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_INFO((AE_INFO, "Dynamic OEM Table Load:"));
-	acpi_tb_print_table_header(0, table_desc.pointer);
-
 	/* Remove the reference by added by acpi_ex_store above */
 
 	acpi_ut_remove_reference(ddb_handle);
@@ -546,8 +542,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc,
 	/* Invoke table handler if present */
 
 	if (acpi_gbl_table_handler) {
-		(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD,
-					     table_desc.pointer,
+		(void)acpi_gbl_table_handler(ACPI_TABLE_EVENT_LOAD, table,
 					     acpi_gbl_table_handler_context);
 	}
 
@@ -576,6 +571,13 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle)
 	ACPI_FUNCTION_TRACE(ex_unload_table);
 
 	/*
+	 * Temporarily emit a warning so that the ASL for the machine can be
+	 * hopefully obtained. This is to say that the Unload() operator is
+	 * extremely rare if not completely unused.
+	 */
+	ACPI_WARNING((AE_INFO, "Received request to unload an ACPI table"));
+
+	/*
 	 * Validate the handle
 	 * Although the handle is partially validated in acpi_ex_reconfiguration()
 	 * when it calls acpi_ex_resolve_operands(), the handle is more completely
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index 973fdae..925202a 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -134,9 +134,11 @@ static struct acpi_exdump_info acpi_ex_dump_method[9] = {
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"}
 };
 
-static struct acpi_exdump_info acpi_ex_dump_mutex[5] = {
+static struct acpi_exdump_info acpi_ex_dump_mutex[6] = {
 	{ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL},
 	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"},
+	{ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.original_sync_level),
+	 "Original Sync Level"},
 	{ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"},
 	{ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth),
 	 "Acquire Depth"},
diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c
index e701d8c..6aade8e 100644
--- a/drivers/acpi/acpica/hwpci.c
+++ b/drivers/acpi/acpica/hwpci.c
@@ -140,11 +140,12 @@ acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
 		/* Walk the list, updating the PCI device/function/bus numbers */
 
 		status = acpi_hw_process_pci_list(pci_id, list_head);
-	}
 
-	/* Always delete the list */
+		/* Delete the list */
+
+		acpi_hw_delete_pci_list(list_head);
+	}
 
-	acpi_hw_delete_pci_list(list_head);
 	return_ACPI_STATUS(status);
 }
 
@@ -187,6 +188,10 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device,
 	while (1) {
 		status = acpi_get_parent(current_device, &parent_device);
 		if (ACPI_FAILURE(status)) {
+
+			/* Must delete the list before exit */
+
+			acpi_hw_delete_pci_list(*return_list_head);
 			return (status);
 		}
 
@@ -199,6 +204,10 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device,
 
 		list_element = ACPI_ALLOCATE(sizeof(struct acpi_pci_device));
 		if (!list_element) {
+
+			/* Must delete the list before exit */
+
+			acpi_hw_delete_pci_list(*return_list_head);
 			return (AE_NO_MEMORY);
 		}
 
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 75d3690..049d9c2 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -72,6 +72,8 @@ acpi_buffer_to_resource(u8 *aml_buffer,
 	void *resource;
 	void *current_resource_ptr;
 
+	ACPI_FUNCTION_TRACE(acpi_buffer_to_resource);
+
 	/*
 	 * Note: we allow AE_AML_NO_RESOURCE_END_TAG, since an end tag
 	 * is not required here.
@@ -85,7 +87,7 @@ acpi_buffer_to_resource(u8 *aml_buffer,
 		status = AE_OK;
 	}
 	if (ACPI_FAILURE(status)) {
-		return (status);
+		return_ACPI_STATUS(status);
 	}
 
 	/* Allocate a buffer for the converted resource */
@@ -93,7 +95,7 @@ acpi_buffer_to_resource(u8 *aml_buffer,
 	resource = ACPI_ALLOCATE_ZEROED(list_size_needed);
 	current_resource_ptr = resource;
 	if (!resource) {
-		return (AE_NO_MEMORY);
+		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
 	/* Perform the AML-to-Resource conversion */
@@ -110,9 +112,11 @@ acpi_buffer_to_resource(u8 *aml_buffer,
 		*resource_ptr = resource;
 	}
 
-	return (status);
+	return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL(acpi_buffer_to_resource)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_rs_create_resource_list
@@ -130,10 +134,9 @@ acpi_buffer_to_resource(u8 *aml_buffer,
  *              of device resources.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
-			     struct acpi_buffer * output_buffer)
+			     struct acpi_buffer *output_buffer)
 {
 
 	acpi_status status;
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
new file mode 100644
index 0000000..f499c10
--- /dev/null
+++ b/drivers/acpi/acpica/tbdata.c
@@ -0,0 +1,760 @@
+/******************************************************************************
+ *
+ * Module Name: tbdata - Table manager data structure functions
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "actables.h"
+
+#define _COMPONENT          ACPI_TABLES
+ACPI_MODULE_NAME("tbdata")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_init_table_descriptor
+ *
+ * PARAMETERS:  table_desc              - Table descriptor
+ *              address                 - Physical address of the table
+ *              flags                   - Allocation flags of the table
+ *              table                   - Pointer to the table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Initialize a new table descriptor
+ *
+ ******************************************************************************/
+void
+acpi_tb_init_table_descriptor(struct acpi_table_desc *table_desc,
+			      acpi_physical_address address,
+			      u8 flags, struct acpi_table_header *table)
+{
+
+	/*
+	 * Initialize the table descriptor. Set the pointer to NULL, since the
+	 * table is not fully mapped at this time.
+	 */
+	ACPI_MEMSET(table_desc, 0, sizeof(struct acpi_table_desc));
+	table_desc->address = address;
+	table_desc->length = table->length;
+	table_desc->flags = flags;
+	ACPI_MOVE_32_TO_32(table_desc->signature.ascii, table->signature);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_acquire_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor
+ *              table_ptr           - Where table is returned
+ *              table_length        - Where table length is returned
+ *              table_flags         - Where table allocation flags are returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Acquire an ACPI table. It can be used for tables not
+ *              maintained in the acpi_gbl_root_table_list.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_acquire_table(struct acpi_table_desc *table_desc,
+		      struct acpi_table_header **table_ptr,
+		      u32 *table_length, u8 *table_flags)
+{
+	struct acpi_table_header *table = NULL;
+
+	switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
+	case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+		table =
+		    acpi_os_map_memory(table_desc->address, table_desc->length);
+		break;
+
+	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+
+		table =
+		    ACPI_CAST_PTR(struct acpi_table_header,
+				  table_desc->address);
+		break;
+
+	default:
+
+		break;
+	}
+
+	/* Table is not valid yet */
+
+	if (!table) {
+		return (AE_NO_MEMORY);
+	}
+
+	/* Fill the return values */
+
+	*table_ptr = table;
+	*table_length = table_desc->length;
+	*table_flags = table_desc->flags;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_release_table
+ *
+ * PARAMETERS:  table               - Pointer for the table
+ *              table_length        - Length for the table
+ *              table_flags         - Allocation flags for the table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Release a table. The inverse of acpi_tb_acquire_table().
+ *
+ ******************************************************************************/
+
+void
+acpi_tb_release_table(struct acpi_table_header *table,
+		      u32 table_length, u8 table_flags)
+{
+
+	switch (table_flags & ACPI_TABLE_ORIGIN_MASK) {
+	case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+		acpi_os_unmap_memory(table, table_length);
+		break;
+
+	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+	default:
+
+		break;
+	}
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_acquire_temp_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor to be acquired
+ *              address             - Address of the table
+ *              flags               - Allocation flags of the table
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function validates the table header to obtain the length
+ *              of a table and fills the table descriptor to make its state as
+ *              "INSTALLED". Such a table descriptor is only used for verified
+ *              installation.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_acquire_temp_table(struct acpi_table_desc *table_desc,
+			   acpi_physical_address address, u8 flags)
+{
+	struct acpi_table_header *table_header;
+
+	switch (flags & ACPI_TABLE_ORIGIN_MASK) {
+	case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL:
+
+		/* Get the length of the full table from the header */
+
+		table_header =
+		    acpi_os_map_memory(address,
+				       sizeof(struct acpi_table_header));
+		if (!table_header) {
+			return (AE_NO_MEMORY);
+		}
+
+		acpi_tb_init_table_descriptor(table_desc, address, flags,
+					      table_header);
+		acpi_os_unmap_memory(table_header,
+				     sizeof(struct acpi_table_header));
+		return (AE_OK);
+
+	case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL:
+	case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL:
+
+		table_header = ACPI_CAST_PTR(struct acpi_table_header, address);
+		if (!table_header) {
+			return (AE_NO_MEMORY);
+		}
+
+		acpi_tb_init_table_descriptor(table_desc, address, flags,
+					      table_header);
+		return (AE_OK);
+
+	default:
+
+		break;
+	}
+
+	/* Table is not valid yet */
+
+	return (AE_NO_MEMORY);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_release_temp_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor to be released
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: The inverse of acpi_tb_acquire_temp_table().
+ *
+ *****************************************************************************/
+
+void acpi_tb_release_temp_table(struct acpi_table_desc *table_desc)
+{
+
+	/*
+	 * Note that the .Address is maintained by the callers of
+	 * acpi_tb_acquire_temp_table(), thus do not invoke acpi_tb_uninstall_table()
+	 * where .Address will be freed.
+	 */
+	acpi_tb_invalidate_table(table_desc);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_validate_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to validate the table, the returned
+ *              table descriptor is in "VALIDATED" state.
+ *
+ *****************************************************************************/
+
+acpi_status acpi_tb_validate_table(struct acpi_table_desc *table_desc)
+{
+	acpi_status status = AE_OK;
+
+	ACPI_FUNCTION_TRACE(tb_validate_table);
+
+	/* Validate the table if necessary */
+
+	if (!table_desc->pointer) {
+		status = acpi_tb_acquire_table(table_desc, &table_desc->pointer,
+					       &table_desc->length,
+					       &table_desc->flags);
+		if (!table_desc->pointer) {
+			status = AE_NO_MEMORY;
+		}
+	}
+
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_invalidate_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Invalidate one internal ACPI table, this is the inverse of
+ *              acpi_tb_validate_table().
+ *
+ ******************************************************************************/
+
+void acpi_tb_invalidate_table(struct acpi_table_desc *table_desc)
+{
+
+	ACPI_FUNCTION_TRACE(tb_invalidate_table);
+
+	/* Table must be validated */
+
+	if (!table_desc->pointer) {
+		return_VOID;
+	}
+
+	acpi_tb_release_table(table_desc->pointer, table_desc->length,
+			      table_desc->flags);
+	table_desc->pointer = NULL;
+
+	return_VOID;
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_validate_temp_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to validate the table, the returned
+ *              table descriptor is in "VALIDATED" state.
+ *
+ *****************************************************************************/
+
+acpi_status acpi_tb_validate_temp_table(struct acpi_table_desc *table_desc)
+{
+
+	if (!table_desc->pointer && !acpi_gbl_verify_table_checksum) {
+		/*
+		 * Only validates the header of the table.
+		 * Note that Length contains the size of the mapping after invoking
+		 * this work around, this value is required by
+		 * acpi_tb_release_temp_table().
+		 * We can do this because in acpi_init_table_descriptor(), the Length
+		 * field of the installed descriptor is filled with the actual
+		 * table length obtaining from the table header.
+		 */
+		table_desc->length = sizeof(struct acpi_table_header);
+	}
+
+	return (acpi_tb_validate_table(table_desc));
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_verify_temp_table
+ *
+ * PARAMETERS:  table_desc          - Table descriptor
+ *              signature           - Table signature to verify
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to validate and verify the table, the
+ *              returned table descriptor is in "VALIDATED" state.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_tb_verify_temp_table(struct acpi_table_desc * table_desc, char *signature)
+{
+	acpi_status status = AE_OK;
+
+	ACPI_FUNCTION_TRACE(tb_verify_temp_table);
+
+	/* Validate the table */
+
+	status = acpi_tb_validate_temp_table(table_desc);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	/* If a particular signature is expected (DSDT/FACS), it must match */
+
+	if (signature && !ACPI_COMPARE_NAME(&table_desc->signature, signature)) {
+		ACPI_BIOS_ERROR((AE_INFO,
+				 "Invalid signature 0x%X for ACPI table, expected [%s]",
+				 table_desc->signature.integer, signature));
+		status = AE_BAD_SIGNATURE;
+		goto invalidate_and_exit;
+	}
+
+	/* Verify the checksum */
+
+	if (acpi_gbl_verify_table_checksum) {
+		status =
+		    acpi_tb_verify_checksum(table_desc->pointer,
+					    table_desc->length);
+		if (ACPI_FAILURE(status)) {
+			ACPI_EXCEPTION((AE_INFO, AE_NO_MEMORY,
+					"%4.4s " ACPI_PRINTF_UINT
+					" Attempted table install failed",
+					acpi_ut_valid_acpi_name(table_desc->
+								signature.
+								ascii) ?
+					table_desc->signature.ascii : "????",
+					ACPI_FORMAT_TO_UINT(table_desc->
+							    address)));
+			goto invalidate_and_exit;
+		}
+	}
+
+	return_ACPI_STATUS(AE_OK);
+
+invalidate_and_exit:
+	acpi_tb_invalidate_table(table_desc);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_resize_root_table_list
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Expand the size of global table array
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_resize_root_table_list(void)
+{
+	struct acpi_table_desc *tables;
+	u32 table_count;
+
+	ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
+
+	/* allow_resize flag is a parameter to acpi_initialize_tables */
+
+	if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) {
+		ACPI_ERROR((AE_INFO,
+			    "Resize of Root Table Array is not allowed"));
+		return_ACPI_STATUS(AE_SUPPORT);
+	}
+
+	/* Increase the Table Array size */
+
+	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+		table_count = acpi_gbl_root_table_list.max_table_count;
+	} else {
+		table_count = acpi_gbl_root_table_list.current_table_count;
+	}
+
+	tables = ACPI_ALLOCATE_ZEROED(((acpi_size) table_count +
+				       ACPI_ROOT_TABLE_SIZE_INCREMENT) *
+				      sizeof(struct acpi_table_desc));
+	if (!tables) {
+		ACPI_ERROR((AE_INFO,
+			    "Could not allocate new root table array"));
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	/* Copy and free the previous table array */
+
+	if (acpi_gbl_root_table_list.tables) {
+		ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
+			    (acpi_size) table_count *
+			    sizeof(struct acpi_table_desc));
+
+		if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+			ACPI_FREE(acpi_gbl_root_table_list.tables);
+		}
+	}
+
+	acpi_gbl_root_table_list.tables = tables;
+	acpi_gbl_root_table_list.max_table_count =
+	    table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT;
+	acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_get_next_root_index
+ *
+ * PARAMETERS:  table_index         - Where table index is returned
+ *
+ * RETURN:      Status and table index.
+ *
+ * DESCRIPTION: Allocate a new ACPI table entry to the global table list
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_get_next_root_index(u32 *table_index)
+{
+	acpi_status status;
+
+	/* Ensure that there is room for the table in the Root Table List */
+
+	if (acpi_gbl_root_table_list.current_table_count >=
+	    acpi_gbl_root_table_list.max_table_count) {
+		status = acpi_tb_resize_root_table_list();
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+	}
+
+	*table_index = acpi_gbl_root_table_list.current_table_count;
+	acpi_gbl_root_table_list.current_table_count++;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_terminate
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete all internal ACPI tables
+ *
+ ******************************************************************************/
+
+void acpi_tb_terminate(void)
+{
+	u32 i;
+
+	ACPI_FUNCTION_TRACE(tb_terminate);
+
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+	/* Delete the individual tables */
+
+	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) {
+		acpi_tb_uninstall_table(&acpi_gbl_root_table_list.tables[i]);
+	}
+
+	/*
+	 * Delete the root table array if allocated locally. Array cannot be
+	 * mapped, so we don't need to check for that flag.
+	 */
+	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+		ACPI_FREE(acpi_gbl_root_table_list.tables);
+	}
+
+	acpi_gbl_root_table_list.tables = NULL;
+	acpi_gbl_root_table_list.flags = 0;
+	acpi_gbl_root_table_list.current_table_count = 0;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_delete_namespace_by_owner
+ *
+ * PARAMETERS:  table_index         - Table index
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Delete all namespace objects created when this table was loaded.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index)
+{
+	acpi_owner_id owner_id;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(tb_delete_namespace_by_owner);
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	if (table_index >= acpi_gbl_root_table_list.current_table_count) {
+
+		/* The table index does not exist */
+
+		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+		return_ACPI_STATUS(AE_NOT_EXIST);
+	}
+
+	/* Get the owner ID for this table, used to delete namespace nodes */
+
+	owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id;
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+
+	/*
+	 * Need to acquire the namespace writer lock to prevent interference
+	 * with any concurrent namespace walks. The interpreter must be
+	 * released during the deletion since the acquisition of the deletion
+	 * lock may block, and also since the execution of a namespace walk
+	 * must be allowed to use the interpreter.
+	 */
+	(void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
+	status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock);
+
+	acpi_ns_delete_namespace_by_owner(owner_id);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock);
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_allocate_owner_id
+ *
+ * PARAMETERS:  table_index         - Table index
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Allocates owner_id in table_desc
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_allocate_owner_id(u32 table_index)
+{
+	acpi_status status = AE_BAD_PARAMETER;
+
+	ACPI_FUNCTION_TRACE(tb_allocate_owner_id);
+
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.current_table_count) {
+		status =
+		    acpi_ut_allocate_owner_id(&
+					      (acpi_gbl_root_table_list.
+					       tables[table_index].owner_id));
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_release_owner_id
+ *
+ * PARAMETERS:  table_index         - Table index
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Releases owner_id in table_desc
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_release_owner_id(u32 table_index)
+{
+	acpi_status status = AE_BAD_PARAMETER;
+
+	ACPI_FUNCTION_TRACE(tb_release_owner_id);
+
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.current_table_count) {
+		acpi_ut_release_owner_id(&
+					 (acpi_gbl_root_table_list.
+					  tables[table_index].owner_id));
+		status = AE_OK;
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_get_owner_id
+ *
+ * PARAMETERS:  table_index         - Table index
+ *              owner_id            - Where the table owner_id is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: returns owner_id for the ACPI table
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id * owner_id)
+{
+	acpi_status status = AE_BAD_PARAMETER;
+
+	ACPI_FUNCTION_TRACE(tb_get_owner_id);
+
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.current_table_count) {
+		*owner_id =
+		    acpi_gbl_root_table_list.tables[table_index].owner_id;
+		status = AE_OK;
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_is_table_loaded
+ *
+ * PARAMETERS:  table_index         - Index into the root table
+ *
+ * RETURN:      Table Loaded Flag
+ *
+ ******************************************************************************/
+
+u8 acpi_tb_is_table_loaded(u32 table_index)
+{
+	u8 is_loaded = FALSE;
+
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.current_table_count) {
+		is_loaded = (u8)
+		    (acpi_gbl_root_table_list.tables[table_index].flags &
+		     ACPI_TABLE_IS_LOADED);
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return (is_loaded);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_set_table_loaded_flag
+ *
+ * PARAMETERS:  table_index         - Table index
+ *              is_loaded           - TRUE if table is loaded, FALSE otherwise
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
+ *
+ ******************************************************************************/
+
+void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded)
+{
+
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.current_table_count) {
+		if (is_loaded) {
+			acpi_gbl_root_table_list.tables[table_index].flags |=
+			    ACPI_TABLE_IS_LOADED;
+		} else {
+			acpi_gbl_root_table_list.tables[table_index].flags &=
+			    ~ACPI_TABLE_IS_LOADED;
+		}
+	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+}
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index ec14588..41519a9 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -52,7 +52,8 @@ ACPI_MODULE_NAME("tbfadt")
 static void
 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
 			     u8 space_id,
-			     u8 byte_width, u64 address, char *register_name);
+			     u8 byte_width,
+			     u64 address, char *register_name, u8 flags);
 
 static void acpi_tb_convert_fadt(void);
 
@@ -69,13 +70,14 @@ typedef struct acpi_fadt_info {
 	u16 address32;
 	u16 length;
 	u8 default_length;
-	u8 type;
+	u8 flags;
 
 } acpi_fadt_info;
 
 #define ACPI_FADT_OPTIONAL          0
 #define ACPI_FADT_REQUIRED          1
 #define ACPI_FADT_SEPARATE_LENGTH   2
+#define ACPI_FADT_GPE_REGISTER      4
 
 static struct acpi_fadt_info fadt_info_table[] = {
 	{"Pm1aEventBlock",
@@ -125,14 +127,14 @@ static struct acpi_fadt_info fadt_info_table[] = {
 	 ACPI_FADT_OFFSET(gpe0_block),
 	 ACPI_FADT_OFFSET(gpe0_block_length),
 	 0,
-	 ACPI_FADT_SEPARATE_LENGTH},
+	 ACPI_FADT_SEPARATE_LENGTH | ACPI_FADT_GPE_REGISTER},
 
 	{"Gpe1Block",
 	 ACPI_FADT_OFFSET(xgpe1_block),
 	 ACPI_FADT_OFFSET(gpe1_block),
 	 ACPI_FADT_OFFSET(gpe1_block_length),
 	 0,
-	 ACPI_FADT_SEPARATE_LENGTH}
+	 ACPI_FADT_SEPARATE_LENGTH | ACPI_FADT_GPE_REGISTER}
 };
 
 #define ACPI_FADT_INFO_ENTRIES \
@@ -189,19 +191,29 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = {
 static void
 acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
 			     u8 space_id,
-			     u8 byte_width, u64 address, char *register_name)
+			     u8 byte_width,
+			     u64 address, char *register_name, u8 flags)
 {
 	u8 bit_width;
 
-	/* Bit width field in the GAS is only one byte long, 255 max */
-
+	/*
+	 * Bit width field in the GAS is only one byte long, 255 max.
+	 * Check for bit_width overflow in GAS.
+	 */
 	bit_width = (u8)(byte_width * 8);
-
-	if (byte_width > 31) {	/* (31*8)=248 */
-		ACPI_ERROR((AE_INFO,
-			    "%s - 32-bit FADT register is too long (%u bytes, %u bits) "
-			    "to convert to GAS struct - 255 bits max, truncating",
-			    register_name, byte_width, (byte_width * 8)));
+	if (byte_width > 31) {	/* (31*8)=248, (32*8)=256 */
+		/*
+		 * No error for GPE blocks, because we do not use the bit_width
+		 * for GPEs, the legacy length (byte_width) is used instead to
+		 * allow for a large number of GPEs.
+		 */
+		if (!(flags & ACPI_FADT_GPE_REGISTER)) {
+			ACPI_ERROR((AE_INFO,
+				    "%s - 32-bit FADT register is too long (%u bytes, %u bits) "
+				    "to convert to GAS struct - 255 bits max, truncating",
+				    register_name, byte_width,
+				    (byte_width * 8)));
+		}
 
 		bit_width = 255;
 	}
@@ -332,15 +344,15 @@ void acpi_tb_parse_fadt(u32 table_index)
 
 	/* Obtain the DSDT and FACS tables via their addresses within the FADT */
 
-	acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
-			      ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
+	acpi_tb_install_fixed_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
+				    ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
 
 	/* If Hardware Reduced flag is set, there is no FACS */
 
 	if (!acpi_gbl_reduced_hardware) {
-		acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.
-				      Xfacs, ACPI_SIG_FACS,
-				      ACPI_TABLE_INDEX_FACS);
+		acpi_tb_install_fixed_table((acpi_physical_address)
+					    acpi_gbl_FADT.Xfacs, ACPI_SIG_FACS,
+					    ACPI_TABLE_INDEX_FACS);
 	}
 }
 
@@ -450,6 +462,7 @@ static void acpi_tb_convert_fadt(void)
 	struct acpi_generic_address *address64;
 	u32 address32;
 	u8 length;
+	u8 flags;
 	u32 i;
 
 	/*
@@ -515,6 +528,7 @@ static void acpi_tb_convert_fadt(void)
 				       fadt_info_table[i].length);
 
 		name = fadt_info_table[i].name;
+		flags = fadt_info_table[i].flags;
 
 		/*
 		 * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X"
@@ -554,7 +568,7 @@ static void acpi_tb_convert_fadt(void)
 									   [i].
 									   length),
 							     (u64)address32,
-							     name);
+							     name, flags);
 			} else if (address64->address != (u64)address32) {
 
 				/* Address mismatch */
@@ -582,7 +596,8 @@ static void acpi_tb_convert_fadt(void)
 								      length),
 								     (u64)
 								     address32,
-								     name);
+								     name,
+								     flags);
 				}
 			}
 		}
@@ -603,7 +618,7 @@ static void acpi_tb_convert_fadt(void)
 					   address64->bit_width));
 		}
 
-		if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
+		if (fadt_info_table[i].flags & ACPI_FADT_REQUIRED) {
 			/*
 			 * Field is required (Pm1a_event, Pm1a_control).
 			 * Both the address and length must be non-zero.
@@ -617,7 +632,7 @@ static void acpi_tb_convert_fadt(void)
 								    address),
 						 length));
 			}
-		} else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) {
+		} else if (fadt_info_table[i].flags & ACPI_FADT_SEPARATE_LENGTH) {
 			/*
 			 * Field is optional (Pm2_control, GPE0, GPE1) AND has its own
 			 * length field. If present, both the address and length must
@@ -726,7 +741,7 @@ static void acpi_tb_setup_fadt_registers(void)
 						     (fadt_pm_info_table[i].
 						      register_num *
 						      pm1_register_byte_width),
-						     "PmRegisters");
+						     "PmRegisters", 0);
 		}
 	}
 }
diff --git a/drivers/acpi/acpica/tbfind.c b/drivers/acpi/acpica/tbfind.c
index c120039..cb94770 100644
--- a/drivers/acpi/acpica/tbfind.c
+++ b/drivers/acpi/acpica/tbfind.c
@@ -99,8 +99,8 @@ acpi_tb_find_table(char *signature,
 			/* Table is not currently mapped, map it */
 
 			status =
-			    acpi_tb_verify_table(&acpi_gbl_root_table_list.
-						 tables[i]);
+			    acpi_tb_validate_table(&acpi_gbl_root_table_list.
+						   tables[i]);
 			if (ACPI_FAILURE(status)) {
 				return_ACPI_STATUS(status);
 			}
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index e304094..755b90c 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -43,688 +43,483 @@
 
 #include <acpi/acpi.h>
 #include "accommon.h"
-#include "acnamesp.h"
 #include "actables.h"
 
 #define _COMPONENT          ACPI_TABLES
 ACPI_MODULE_NAME("tbinstal")
 
-/******************************************************************************
+/* Local prototypes */
+static u8
+acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index);
+
+/*******************************************************************************
  *
- * FUNCTION:    acpi_tb_verify_table
+ * FUNCTION:    acpi_tb_compare_tables
  *
- * PARAMETERS:  table_desc          - table
+ * PARAMETERS:  table_desc          - Table 1 descriptor to be compared
+ *              table_index         - Index of table 2 to be compared
  *
- * RETURN:      Status
+ * RETURN:      TRUE if both tables are identical.
  *
- * DESCRIPTION: this function is called to verify and map table
+ * DESCRIPTION: This function compares a table with another table that has
+ *              already been installed in the root table list.
  *
- *****************************************************************************/
-acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc)
+ ******************************************************************************/
+
+static u8
+acpi_tb_compare_tables(struct acpi_table_desc *table_desc, u32 table_index)
 {
 	acpi_status status = AE_OK;
+	u8 is_identical;
+	struct acpi_table_header *table;
+	u32 table_length;
+	u8 table_flags;
 
-	ACPI_FUNCTION_TRACE(tb_verify_table);
-
-	/* Map the table if necessary */
-
-	if (!table_desc->pointer) {
-		if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) ==
-		    ACPI_TABLE_ORIGIN_MAPPED) {
-			table_desc->pointer =
-			    acpi_os_map_memory(table_desc->address,
-					       table_desc->length);
-		}
-		if (!table_desc->pointer) {
-			return_ACPI_STATUS(AE_NO_MEMORY);
-		}
+	status =
+	    acpi_tb_acquire_table(&acpi_gbl_root_table_list.tables[table_index],
+				  &table, &table_length, &table_flags);
+	if (ACPI_FAILURE(status)) {
+		return (FALSE);
 	}
 
-	/* Always calculate checksum, ignore bad checksum if requested */
+	/*
+	 * Check for a table match on the entire table length,
+	 * not just the header.
+	 */
+	is_identical = (u8)((table_desc->length != table_length ||
+			     ACPI_MEMCMP(table_desc->pointer, table,
+					 table_length)) ? FALSE : TRUE);
 
-	status =
-	    acpi_tb_verify_checksum(table_desc->pointer, table_desc->length);
+	/* Release the acquired table */
 
-	return_ACPI_STATUS(status);
+	acpi_tb_release_table(table, table_length, table_flags);
+	return (is_identical);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_add_table
+ * FUNCTION:    acpi_tb_install_table_with_override
  *
- * PARAMETERS:  table_desc          - Table descriptor
- *              table_index         - Where the table index is returned
+ * PARAMETERS:  table_index             - Index into root table array
+ *              new_table_desc          - New table descriptor to install
+ *              override                - Whether override should be performed
  *
- * RETURN:      Status
+ * RETURN:      None
  *
- * DESCRIPTION: This function is called to add an ACPI table. It is used to
- *              dynamically load tables via the Load and load_table AML
- *              operators.
+ * DESCRIPTION: Install an ACPI table into the global data structure. The
+ *              table override mechanism is called to allow the host
+ *              OS to replace any table before it is installed in the root
+ *              table array.
  *
  ******************************************************************************/
 
-acpi_status
-acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
+void
+acpi_tb_install_table_with_override(u32 table_index,
+				    struct acpi_table_desc *new_table_desc,
+				    u8 override)
 {
-	u32 i;
-	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE(tb_add_table);
-
-	if (!table_desc->pointer) {
-		status = acpi_tb_verify_table(table_desc);
-		if (ACPI_FAILURE(status) || !table_desc->pointer) {
-			return_ACPI_STATUS(status);
-		}
+	if (table_index >= acpi_gbl_root_table_list.current_table_count) {
+		return;
 	}
 
 	/*
-	 * Validate the incoming table signature.
+	 * ACPI Table Override:
 	 *
-	 * 1) Originally, we checked the table signature for "SSDT" or "PSDT".
-	 * 2) We added support for OEMx tables, signature "OEM".
-	 * 3) Valid tables were encountered with a null signature, so we just
-	 *    gave up on validating the signature, (05/2008).
-	 * 4) We encountered non-AML tables such as the MADT, which caused
-	 *    interpreter errors and kernel faults. So now, we once again allow
-	 *    only "SSDT", "OEMx", and now, also a null signature. (05/2011).
+	 * 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.
 	 */
-	if ((table_desc->pointer->signature[0] != 0x00) &&
-	    (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT))
-	    && (ACPI_STRNCMP(table_desc->pointer->signature, "OEM", 3))) {
-		ACPI_BIOS_ERROR((AE_INFO,
-				 "Table has invalid signature [%4.4s] (0x%8.8X), "
-				 "must be SSDT or OEMx",
-				 acpi_ut_valid_acpi_name(table_desc->pointer->
-							 signature) ?
-				 table_desc->pointer->signature : "????",
-				 *(u32 *)table_desc->pointer->signature));
-
-		return_ACPI_STATUS(AE_BAD_SIGNATURE);
+	if (override) {
+		acpi_tb_override_table(new_table_desc);
 	}
 
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list.
+				      tables[table_index],
+				      new_table_desc->address,
+				      new_table_desc->flags,
+				      new_table_desc->pointer);
 
-	/* Check if table is already registered */
+	acpi_tb_print_table_header(new_table_desc->address,
+				   new_table_desc->pointer);
 
-	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
-		if (!acpi_gbl_root_table_list.tables[i].pointer) {
-			status =
-			    acpi_tb_verify_table(&acpi_gbl_root_table_list.
-						 tables[i]);
-			if (ACPI_FAILURE(status)
-			    || !acpi_gbl_root_table_list.tables[i].pointer) {
-				continue;
-			}
-		}
+	/* Set the global integer width (based upon revision of the DSDT) */
 
-		/*
-		 * Check for a table match on the entire table length,
-		 * not just the header.
-		 */
-		if (table_desc->length !=
-		    acpi_gbl_root_table_list.tables[i].length) {
-			continue;
-		}
-
-		if (ACPI_MEMCMP(table_desc->pointer,
-				acpi_gbl_root_table_list.tables[i].pointer,
-				acpi_gbl_root_table_list.tables[i].length)) {
-			continue;
-		}
-
-		/*
-		 * Note: the current mechanism does not unregister a table if it is
-		 * dynamically unloaded. The related namespace entries are deleted,
-		 * but the table remains in the root table list.
-		 *
-		 * The assumption here is that the number of different tables that
-		 * will be loaded is actually small, and there is minimal overhead
-		 * in just keeping the table in case it is needed again.
-		 *
-		 * If this assumption changes in the future (perhaps on large
-		 * machines with many table load/unload operations), tables will
-		 * need to be unregistered when they are unloaded, and slots in the
-		 * root table list should be reused when empty.
-		 */
-
-		/*
-		 * Table is already registered.
-		 * We can delete the table that was passed as a parameter.
-		 */
-		acpi_tb_delete_table(table_desc);
-		*table_index = i;
-
-		if (acpi_gbl_root_table_list.tables[i].
-		    flags & ACPI_TABLE_IS_LOADED) {
-
-			/* Table is still loaded, this is an error */
-
-			status = AE_ALREADY_EXISTS;
-			goto release;
-		} else {
-			/* Table was unloaded, allow it to be reloaded */
-
-			table_desc->pointer =
-			    acpi_gbl_root_table_list.tables[i].pointer;
-			table_desc->address =
-			    acpi_gbl_root_table_list.tables[i].address;
-			status = AE_OK;
-			goto print_header;
-		}
+	if (table_index == ACPI_TABLE_INDEX_DSDT) {
+		acpi_ut_set_integer_width(new_table_desc->pointer->revision);
 	}
-
-	/*
-	 * 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.
-	 */
-	(void)acpi_tb_table_override(table_desc->pointer, table_desc);
-
-	/* Add the table to the global root table list */
-
-	status = acpi_tb_store_table(table_desc->address, table_desc->pointer,
-				     table_desc->length, table_desc->flags,
-				     table_index);
-	if (ACPI_FAILURE(status)) {
-		goto release;
-	}
-
-print_header:
-	acpi_tb_print_table_header(table_desc->address, table_desc->pointer);
-
-release:
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_table_override
+ * FUNCTION:    acpi_tb_install_fixed_table
  *
- * PARAMETERS:  table_header        - Header for the original table
- *              table_desc          - Table descriptor initialized for the
- *                                    original table. May or may not be mapped.
+ * PARAMETERS:  address                 - Physical address of DSDT or FACS
+ *              signature               - Table signature, NULL if no need to
+ *                                        match
+ *              table_index             - Index into root table array
  *
- * RETURN:      Pointer to the entire new table. NULL if table not overridden.
- *              If overridden, installs the new table within the input table
- *              descriptor.
+ * RETURN:      Status
  *
- * 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.
+ * DESCRIPTION: Install a fixed ACPI table (DSDT/FACS) into the global data
+ *              structure.
  *
  ******************************************************************************/
 
-struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
-						 *table_header,
-						 struct acpi_table_desc
-						 *table_desc)
+acpi_status
+acpi_tb_install_fixed_table(acpi_physical_address address,
+			    char *signature, u32 table_index)
 {
+	struct acpi_table_desc new_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) */
+	ACPI_FUNCTION_TRACE(tb_install_fixed_table);
 
-	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;
+	if (!address) {
+		ACPI_ERROR((AE_INFO,
+			    "Null physical address for ACPI table [%s]",
+			    signature));
+		return (AE_NO_MEMORY);
 	}
 
-	/* (2) Attempt physical override (returns a physical address) */
+	/* Fill a table descriptor for validation */
 
-	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 " ACPI_PRINTF_UINT
-					" Attempted physical table override failed",
-					table_header->signature,
-					ACPI_FORMAT_TO_UINT(table_desc->
-							    address)));
-			return (NULL);
-		}
-
-		override_type = "Physical";
-		new_flags = ACPI_TABLE_ORIGIN_MAPPED;
-		goto finish_override;
+	status = acpi_tb_acquire_temp_table(&new_table_desc, address,
+					    ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL);
+	if (ACPI_FAILURE(status)) {
+		ACPI_ERROR((AE_INFO, "Could not acquire table length at %p",
+			    ACPI_CAST_PTR(void, address)));
+		return_ACPI_STATUS(status);
 	}
 
-	return (NULL);		/* There was no override */
-
-finish_override:
-
-	ACPI_INFO((AE_INFO, "%4.4s " ACPI_PRINTF_UINT
-		   " %s table override, new table: " ACPI_PRINTF_UINT,
-		   table_header->signature,
-		   ACPI_FORMAT_TO_UINT(table_desc->address),
-		   override_type, ACPI_FORMAT_TO_UINT(new_table)));
+	/* Validate and verify a table before installation */
 
-	/* We can now unmap/delete the original table (if fully mapped) */
+	status = acpi_tb_verify_temp_table(&new_table_desc, signature);
+	if (ACPI_FAILURE(status)) {
+		goto release_and_exit;
+	}
 
-	acpi_tb_delete_table(table_desc);
+	acpi_tb_install_table_with_override(table_index, &new_table_desc, TRUE);
 
-	/* Setup descriptor for the new table */
+release_and_exit:
 
-	table_desc->address = new_address;
-	table_desc->pointer = new_table;
-	table_desc->length = new_table_length;
-	table_desc->flags = new_flags;
+	/* Release the temporary table descriptor */
 
-	return (new_table);
+	acpi_tb_release_temp_table(&new_table_desc);
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_resize_root_table_list
+ * FUNCTION:    acpi_tb_install_standard_table
  *
- * PARAMETERS:  None
+ * PARAMETERS:  address             - Address of the table (might be a virtual
+ *                                    address depending on the table_flags)
+ *              flags               - Flags for the table
+ *              reload              - Whether reload should be performed
+ *              override            - Whether override should be performed
+ *              table_index         - Where the table index is returned
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Expand the size of global table array
+ * DESCRIPTION: This function is called to install an ACPI table that is
+ *              neither DSDT nor FACS (a "standard" table.)
+ *              When this function is called by "Load" or "LoadTable" opcodes,
+ *              or by acpi_load_table() API, the "Reload" parameter is set.
+ *              After sucessfully returning from this function, table is
+ *              "INSTALLED" but not "VALIDATED".
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_resize_root_table_list(void)
+acpi_status
+acpi_tb_install_standard_table(acpi_physical_address address,
+			       u8 flags,
+			       u8 reload, u8 override, u32 *table_index)
 {
-	struct acpi_table_desc *tables;
-	u32 table_count;
-
-	ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
-
-	/* allow_resize flag is a parameter to acpi_initialize_tables */
+	u32 i;
+	acpi_status status = AE_OK;
+	struct acpi_table_desc new_table_desc;
 
-	if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) {
-		ACPI_ERROR((AE_INFO,
-			    "Resize of Root Table Array is not allowed"));
-		return_ACPI_STATUS(AE_SUPPORT);
-	}
+	ACPI_FUNCTION_TRACE(tb_install_standard_table);
 
-	/* Increase the Table Array size */
+	/* Acquire a temporary table descriptor for validation */
 
-	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
-		table_count = acpi_gbl_root_table_list.max_table_count;
-	} else {
-		table_count = acpi_gbl_root_table_list.current_table_count;
+	status = acpi_tb_acquire_temp_table(&new_table_desc, address, flags);
+	if (ACPI_FAILURE(status)) {
+		ACPI_ERROR((AE_INFO, "Could not acquire table length at %p",
+			    ACPI_CAST_PTR(void, address)));
+		return_ACPI_STATUS(status);
 	}
 
-	tables = ACPI_ALLOCATE_ZEROED(((acpi_size) table_count +
-				       ACPI_ROOT_TABLE_SIZE_INCREMENT) *
-				      sizeof(struct acpi_table_desc));
-	if (!tables) {
-		ACPI_ERROR((AE_INFO,
-			    "Could not allocate new root table array"));
-		return_ACPI_STATUS(AE_NO_MEMORY);
+	/*
+	 * Optionally do not load any SSDTs from the RSDT/XSDT. This can
+	 * be useful for debugging ACPI problems on some machines.
+	 */
+	if (!reload &&
+	    acpi_gbl_disable_ssdt_table_install &&
+	    ACPI_COMPARE_NAME(&new_table_desc.signature, ACPI_SIG_SSDT)) {
+		ACPI_INFO((AE_INFO, "Ignoring installation of %4.4s at %p",
+			   new_table_desc.signature.ascii, ACPI_CAST_PTR(void,
+									 address)));
+		goto release_and_exit;
 	}
 
-	/* Copy and free the previous table array */
-
-	if (acpi_gbl_root_table_list.tables) {
-		ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
-			    (acpi_size) table_count *
-			    sizeof(struct acpi_table_desc));
+	/* Validate and verify a table before installation */
 
-		if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
-			ACPI_FREE(acpi_gbl_root_table_list.tables);
-		}
+	status = acpi_tb_verify_temp_table(&new_table_desc, NULL);
+	if (ACPI_FAILURE(status)) {
+		goto release_and_exit;
 	}
 
-	acpi_gbl_root_table_list.tables = tables;
-	acpi_gbl_root_table_list.max_table_count =
-	    table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT;
-	acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_store_table
- *
- * PARAMETERS:  address             - Table address
- *              table               - Table header
- *              length              - Table length
- *              flags               - flags
- *
- * RETURN:      Status and table index.
- *
- * DESCRIPTION: Add an ACPI table to the global table list
- *
- ******************************************************************************/
+	if (reload) {
+		/*
+		 * Validate the incoming table signature.
+		 *
+		 * 1) Originally, we checked the table signature for "SSDT" or "PSDT".
+		 * 2) We added support for OEMx tables, signature "OEM".
+		 * 3) Valid tables were encountered with a null signature, so we just
+		 *    gave up on validating the signature, (05/2008).
+		 * 4) We encountered non-AML tables such as the MADT, which caused
+		 *    interpreter errors and kernel faults. So now, we once again allow
+		 *    only "SSDT", "OEMx", and now, also a null signature. (05/2011).
+		 */
+		if ((new_table_desc.signature.ascii[0] != 0x00) &&
+		    (!ACPI_COMPARE_NAME
+		     (&new_table_desc.signature, ACPI_SIG_SSDT))
+		    && (ACPI_STRNCMP(new_table_desc.signature.ascii, "OEM", 3)))
+		{
+			ACPI_BIOS_ERROR((AE_INFO,
+					 "Table has invalid signature [%4.4s] (0x%8.8X), "
+					 "must be SSDT or OEMx",
+					 acpi_ut_valid_acpi_name(new_table_desc.
+								 signature.
+								 ascii) ?
+					 new_table_desc.signature.
+					 ascii : "????",
+					 new_table_desc.signature.integer));
+
+			status = AE_BAD_SIGNATURE;
+			goto release_and_exit;
+		}
 
-acpi_status
-acpi_tb_store_table(acpi_physical_address address,
-		    struct acpi_table_header *table,
-		    u32 length, u8 flags, u32 *table_index)
-{
-	acpi_status status;
-	struct acpi_table_desc *new_table;
+		/* Check if table is already registered */
 
-	/* Ensure that there is room for the table in the Root Table List */
+		for (i = 0; i < acpi_gbl_root_table_list.current_table_count;
+		     ++i) {
+			/*
+			 * Check for a table match on the entire table length,
+			 * not just the header.
+			 */
+			if (!acpi_tb_compare_tables(&new_table_desc, i)) {
+				continue;
+			}
 
-	if (acpi_gbl_root_table_list.current_table_count >=
-	    acpi_gbl_root_table_list.max_table_count) {
-		status = acpi_tb_resize_root_table_list();
-		if (ACPI_FAILURE(status)) {
-			return (status);
+			/*
+			 * Note: the current mechanism does not unregister a table if it is
+			 * dynamically unloaded. The related namespace entries are deleted,
+			 * but the table remains in the root table list.
+			 *
+			 * The assumption here is that the number of different tables that
+			 * will be loaded is actually small, and there is minimal overhead
+			 * in just keeping the table in case it is needed again.
+			 *
+			 * If this assumption changes in the future (perhaps on large
+			 * machines with many table load/unload operations), tables will
+			 * need to be unregistered when they are unloaded, and slots in the
+			 * root table list should be reused when empty.
+			 */
+			if (acpi_gbl_root_table_list.tables[i].
+			    flags & ACPI_TABLE_IS_LOADED) {
+
+				/* Table is still loaded, this is an error */
+
+				status = AE_ALREADY_EXISTS;
+				goto release_and_exit;
+			} else {
+				/*
+				 * Table was unloaded, allow it to be reloaded.
+				 * As we are going to return AE_OK to the caller, we should
+				 * take the responsibility of freeing the input descriptor.
+				 * Refill the input descriptor to ensure
+				 * acpi_tb_install_table_with_override() can be called again to
+				 * indicate the re-installation.
+				 */
+				acpi_tb_uninstall_table(&new_table_desc);
+				*table_index = i;
+				(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+				return_ACPI_STATUS(AE_OK);
+			}
 		}
 	}
 
-	new_table =
-	    &acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.
-					     current_table_count];
-
-	/* Initialize added table */
-
-	new_table->address = address;
-	new_table->pointer = table;
-	new_table->length = length;
-	new_table->owner_id = 0;
-	new_table->flags = flags;
-
-	ACPI_MOVE_32_TO_32(&new_table->signature, table->signature);
-
-	*table_index = acpi_gbl_root_table_list.current_table_count;
-	acpi_gbl_root_table_list.current_table_count++;
-	return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_delete_table
- *
- * PARAMETERS:  table_index         - Table index
- *
- * RETURN:      None
- *
- * DESCRIPTION: Delete one internal ACPI table
- *
- ******************************************************************************/
+	/* Add the table to the global root table list */
 
-void acpi_tb_delete_table(struct acpi_table_desc *table_desc)
-{
-	/* Table must be mapped or allocated */
-	if (!table_desc->pointer) {
-		return;
+	status = acpi_tb_get_next_root_index(&i);
+	if (ACPI_FAILURE(status)) {
+		goto release_and_exit;
 	}
-	switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) {
-	case ACPI_TABLE_ORIGIN_MAPPED:
-
-		acpi_os_unmap_memory(table_desc->pointer, table_desc->length);
-		break;
-
-	case ACPI_TABLE_ORIGIN_ALLOCATED:
 
-		ACPI_FREE(table_desc->pointer);
-		break;
+	*table_index = i;
+	acpi_tb_install_table_with_override(i, &new_table_desc, override);
 
-		/* Not mapped or allocated, there is nothing we can do */
+release_and_exit:
 
-	default:
+	/* Release the temporary table descriptor */
 
-		return;
-	}
-
-	table_desc->pointer = NULL;
+	acpi_tb_release_temp_table(&new_table_desc);
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_terminate
+ * FUNCTION:    acpi_tb_override_table
  *
- * PARAMETERS:  None
+ * PARAMETERS:  old_table_desc      - Validated table descriptor to be
+ *                                    overridden
  *
  * RETURN:      None
  *
- * DESCRIPTION: Delete all internal ACPI tables
+ * DESCRIPTION: Attempt table override by calling the OSL override functions.
+ *              Note: If the table is overridden, then the entire new table
+ *              is acquired and returned by this function.
+ *              Before/after invocation, the table descriptor is in a state
+ *              that is "VALIDATED".
  *
  ******************************************************************************/
 
-void acpi_tb_terminate(void)
+void acpi_tb_override_table(struct acpi_table_desc *old_table_desc)
 {
-	u32 i;
-
-	ACPI_FUNCTION_TRACE(tb_terminate);
-
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-
-	/* Delete the individual tables */
+	acpi_status status;
+	char *override_type;
+	struct acpi_table_desc new_table_desc;
+	struct acpi_table_header *table;
+	acpi_physical_address address;
+	u32 length;
 
-	for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) {
-		acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]);
-	}
+	/* (1) Attempt logical override (returns a logical address) */
 
-	/*
-	 * Delete the root table array if allocated locally. Array cannot be
-	 * mapped, so we don't need to check for that flag.
-	 */
-	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
-		ACPI_FREE(acpi_gbl_root_table_list.tables);
+	status = acpi_os_table_override(old_table_desc->pointer, &table);
+	if (ACPI_SUCCESS(status) && table) {
+		acpi_tb_acquire_temp_table(&new_table_desc,
+					   ACPI_PTR_TO_PHYSADDR(table),
+					   ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL);
+		override_type = "Logical";
+		goto finish_override;
 	}
 
-	acpi_gbl_root_table_list.tables = NULL;
-	acpi_gbl_root_table_list.flags = 0;
-	acpi_gbl_root_table_list.current_table_count = 0;
+	/* (2) Attempt physical override (returns a physical address) */
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	status = acpi_os_physical_table_override(old_table_desc->pointer,
+						 &address, &length);
+	if (ACPI_SUCCESS(status) && address && length) {
+		acpi_tb_acquire_temp_table(&new_table_desc, address,
+					   ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL);
+		override_type = "Physical";
+		goto finish_override;
+	}
 
-	return_VOID;
-}
+	return;			/* There was no override */
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_delete_namespace_by_owner
- *
- * PARAMETERS:  table_index         - Table index
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Delete all namespace objects created when this table was loaded.
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_delete_namespace_by_owner(u32 table_index)
-{
-	acpi_owner_id owner_id;
-	acpi_status status;
+finish_override:
 
-	ACPI_FUNCTION_TRACE(tb_delete_namespace_by_owner);
+	/* Validate and verify a table before overriding */
 
-	status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	status = acpi_tb_verify_temp_table(&new_table_desc, NULL);
 	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+		return;
 	}
 
-	if (table_index >= acpi_gbl_root_table_list.current_table_count) {
-
-		/* The table index does not exist */
-
-		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-		return_ACPI_STATUS(AE_NOT_EXIST);
-	}
+	ACPI_INFO((AE_INFO, "%4.4s " ACPI_PRINTF_UINT
+		   " %s table override, new table: " ACPI_PRINTF_UINT,
+		   old_table_desc->signature.ascii,
+		   ACPI_FORMAT_TO_UINT(old_table_desc->address),
+		   override_type, ACPI_FORMAT_TO_UINT(new_table_desc.address)));
 
-	/* Get the owner ID for this table, used to delete namespace nodes */
+	/* We can now uninstall the original table */
 
-	owner_id = acpi_gbl_root_table_list.tables[table_index].owner_id;
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	acpi_tb_uninstall_table(old_table_desc);
 
 	/*
-	 * Need to acquire the namespace writer lock to prevent interference
-	 * with any concurrent namespace walks. The interpreter must be
-	 * released during the deletion since the acquisition of the deletion
-	 * lock may block, and also since the execution of a namespace walk
-	 * must be allowed to use the interpreter.
+	 * Replace the original table descriptor and keep its state as
+	 * "VALIDATED".
 	 */
-	(void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
-	status = acpi_ut_acquire_write_lock(&acpi_gbl_namespace_rw_lock);
+	acpi_tb_init_table_descriptor(old_table_desc, new_table_desc.address,
+				      new_table_desc.flags,
+				      new_table_desc.pointer);
+	acpi_tb_validate_temp_table(old_table_desc);
 
-	acpi_ns_delete_namespace_by_owner(owner_id);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
+	/* Release the temporary table descriptor */
 
-	acpi_ut_release_write_lock(&acpi_gbl_namespace_rw_lock);
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
-	return_ACPI_STATUS(status);
+	acpi_tb_release_temp_table(&new_table_desc);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_allocate_owner_id
+ * FUNCTION:    acpi_tb_store_table
  *
- * PARAMETERS:  table_index         - Table index
+ * PARAMETERS:  address             - Table address
+ *              table               - Table header
+ *              length              - Table length
+ *              flags               - Install flags
+ *              table_index         - Where the table index is returned
  *
- * RETURN:      Status
+ * RETURN:      Status and table index.
  *
- * DESCRIPTION: Allocates owner_id in table_desc
+ * DESCRIPTION: Add an ACPI table to the global table list
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_allocate_owner_id(u32 table_index)
+acpi_status
+acpi_tb_store_table(acpi_physical_address address,
+		    struct acpi_table_header * table,
+		    u32 length, u8 flags, u32 *table_index)
 {
-	acpi_status status = AE_BAD_PARAMETER;
-
-	ACPI_FUNCTION_TRACE(tb_allocate_owner_id);
+	acpi_status status;
+	struct acpi_table_desc *table_desc;
 
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (table_index < acpi_gbl_root_table_list.current_table_count) {
-		status = acpi_ut_allocate_owner_id
-		    (&(acpi_gbl_root_table_list.tables[table_index].owner_id));
+	status = acpi_tb_get_next_root_index(table_index);
+	if (ACPI_FAILURE(status)) {
+		return (status);
 	}
 
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_release_owner_id
- *
- * PARAMETERS:  table_index         - Table index
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Releases owner_id in table_desc
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_release_owner_id(u32 table_index)
-{
-	acpi_status status = AE_BAD_PARAMETER;
-
-	ACPI_FUNCTION_TRACE(tb_release_owner_id);
-
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (table_index < acpi_gbl_root_table_list.current_table_count) {
-		acpi_ut_release_owner_id(&
-					 (acpi_gbl_root_table_list.
-					  tables[table_index].owner_id));
-		status = AE_OK;
-	}
+	/* Initialize added table */
 
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-	return_ACPI_STATUS(status);
+	table_desc = &acpi_gbl_root_table_list.tables[*table_index];
+	acpi_tb_init_table_descriptor(table_desc, address, flags, table);
+	table_desc->pointer = table;
+	return (AE_OK);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_get_owner_id
+ * FUNCTION:    acpi_tb_uninstall_table
  *
- * PARAMETERS:  table_index         - Table index
- *              owner_id            - Where the table owner_id is returned
+ * PARAMETERS:  table_desc          - Table descriptor
  *
- * RETURN:      Status
+ * RETURN:      None
  *
- * DESCRIPTION: returns owner_id for the ACPI table
+ * DESCRIPTION: Delete one internal ACPI table
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id)
+void acpi_tb_uninstall_table(struct acpi_table_desc *table_desc)
 {
-	acpi_status status = AE_BAD_PARAMETER;
-
-	ACPI_FUNCTION_TRACE(tb_get_owner_id);
 
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (table_index < acpi_gbl_root_table_list.current_table_count) {
-		*owner_id =
-		    acpi_gbl_root_table_list.tables[table_index].owner_id;
-		status = AE_OK;
-	}
+	ACPI_FUNCTION_TRACE(tb_uninstall_table);
 
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_is_table_loaded
- *
- * PARAMETERS:  table_index         - Table index
- *
- * RETURN:      Table Loaded Flag
- *
- ******************************************************************************/
+	/* Table must be installed */
 
-u8 acpi_tb_is_table_loaded(u32 table_index)
-{
-	u8 is_loaded = FALSE;
-
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (table_index < acpi_gbl_root_table_list.current_table_count) {
-		is_loaded = (u8)
-		    (acpi_gbl_root_table_list.tables[table_index].flags &
-		     ACPI_TABLE_IS_LOADED);
+	if (!table_desc->address) {
+		return_VOID;
 	}
 
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-	return (is_loaded);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_set_table_loaded_flag
- *
- * PARAMETERS:  table_index         - Table index
- *              is_loaded           - TRUE if table is loaded, FALSE otherwise
- *
- * RETURN:      None
- *
- * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE.
- *
- ******************************************************************************/
-
-void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded)
-{
+	acpi_tb_invalidate_table(table_desc);
 
-	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (table_index < acpi_gbl_root_table_list.current_table_count) {
-		if (is_loaded) {
-			acpi_gbl_root_table_list.tables[table_index].flags |=
-			    ACPI_TABLE_IS_LOADED;
-		} else {
-			acpi_gbl_root_table_list.tables[table_index].flags &=
-			    ~ACPI_TABLE_IS_LOADED;
-		}
+	if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) ==
+	    ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL) {
+		ACPI_FREE(ACPI_CAST_PTR(void, table_desc->address));
 	}
 
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	table_desc->address = ACPI_PTR_TO_PHYSADDR(NULL);
+	return_VOID;
 }
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 9fb85f3..6b1ca99 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -49,8 +49,6 @@
 ACPI_MODULE_NAME("tbutils")
 
 /* Local prototypes */
-static acpi_status acpi_tb_validate_xsdt(acpi_physical_address address);
-
 static acpi_physical_address
 acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size);
 
@@ -178,9 +176,13 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index)
 	}
 
 	ACPI_MEMCPY(new_table, table_desc->pointer, table_desc->length);
-	acpi_tb_delete_table(table_desc);
-	table_desc->pointer = new_table;
-	table_desc->flags = ACPI_TABLE_ORIGIN_ALLOCATED;
+	acpi_tb_uninstall_table(table_desc);
+
+	acpi_tb_init_table_descriptor(&acpi_gbl_root_table_list.
+				      tables[ACPI_TABLE_INDEX_DSDT],
+				      ACPI_PTR_TO_PHYSADDR(new_table),
+				      ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL,
+				      new_table);
 
 	ACPI_INFO((AE_INFO,
 		   "Forced DSDT copy: length 0x%05X copied locally, original unmapped",
@@ -191,116 +193,6 @@ struct acpi_table_header *acpi_tb_copy_dsdt(u32 table_index)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_install_table
- *
- * PARAMETERS:  address                 - Physical address of DSDT or FACS
- *              signature               - Table signature, NULL if no need to
- *                                        match
- *              table_index             - Index into root table array
- *
- * RETURN:      None
- *
- * DESCRIPTION: Install an ACPI table into the global data structure. The
- *              table override mechanism is called to allow the host
- *              OS to replace any table before it is installed in the root
- *              table array.
- *
- ******************************************************************************/
-
-void
-acpi_tb_install_table(acpi_physical_address address,
-		      char *signature, u32 table_index)
-{
-	struct acpi_table_header *table;
-	struct acpi_table_header *final_table;
-	struct acpi_table_desc *table_desc;
-
-	if (!address) {
-		ACPI_ERROR((AE_INFO,
-			    "Null physical address for ACPI table [%s]",
-			    signature));
-		return;
-	}
-
-	/* Map just the table header */
-
-	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(table->signature, signature)) {
-		ACPI_BIOS_ERROR((AE_INFO,
-				 "Invalid signature 0x%X for ACPI table, expected [%s]",
-				 *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.
-	 */
-	final_table = acpi_tb_table_override(table, table_desc);
-	if (!final_table) {
-		final_table = table;	/* There was no override */
-	}
-
-	acpi_tb_print_table_header(table_desc->address, final_table);
-
-	/* 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);
-	}
-
-	/*
-	 * 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:
-
-	/* Always unmap the table header that we mapped above */
-
-	acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_tb_get_root_table_entry
  *
  * PARAMETERS:  table_entry         - Pointer to the RSDT/XSDT table entry
@@ -357,87 +249,6 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_validate_xsdt
- *
- * PARAMETERS:  address             - Physical address of the XSDT (from RSDP)
- *
- * RETURN:      Status. AE_OK if the table appears to be valid.
- *
- * DESCRIPTION: Validate an XSDT to ensure that it is of minimum size and does
- *              not contain any NULL entries. A problem that is seen in the
- *              field is that the XSDT exists, but is actually useless because
- *              of one or more (or all) NULL entries.
- *
- ******************************************************************************/
-
-static acpi_status acpi_tb_validate_xsdt(acpi_physical_address xsdt_address)
-{
-	struct acpi_table_header *table;
-	u8 *next_entry;
-	acpi_physical_address address;
-	u32 length;
-	u32 entry_count;
-	acpi_status status;
-	u32 i;
-
-	/* Get the XSDT length */
-
-	table =
-	    acpi_os_map_memory(xsdt_address, sizeof(struct acpi_table_header));
-	if (!table) {
-		return (AE_NO_MEMORY);
-	}
-
-	length = table->length;
-	acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-
-	/*
-	 * Minimum XSDT length is the size of the standard ACPI header
-	 * plus one physical address entry
-	 */
-	if (length < (sizeof(struct acpi_table_header) + ACPI_XSDT_ENTRY_SIZE)) {
-		return (AE_INVALID_TABLE_LENGTH);
-	}
-
-	/* Map the entire XSDT */
-
-	table = acpi_os_map_memory(xsdt_address, length);
-	if (!table) {
-		return (AE_NO_MEMORY);
-	}
-
-	/* Get the number of entries and pointer to first entry */
-
-	status = AE_OK;
-	next_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header));
-	entry_count = (u32)((table->length - sizeof(struct acpi_table_header)) /
-			    ACPI_XSDT_ENTRY_SIZE);
-
-	/* Validate each entry (physical address) within the XSDT */
-
-	for (i = 0; i < entry_count; i++) {
-		address =
-		    acpi_tb_get_root_table_entry(next_entry,
-						 ACPI_XSDT_ENTRY_SIZE);
-		if (!address) {
-
-			/* Detected a NULL entry, XSDT is invalid */
-
-			status = AE_NULL_ENTRY;
-			break;
-		}
-
-		next_entry += ACPI_XSDT_ENTRY_SIZE;
-	}
-
-	/* Unmap table */
-
-	acpi_os_unmap_memory(table, length);
-	return (status);
-}
-
-/*******************************************************************************
- *
  * FUNCTION:    acpi_tb_parse_root_table
  *
  * PARAMETERS:  rsdp                    - Pointer to the RSDP
@@ -461,10 +272,10 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 	u32 table_count;
 	struct acpi_table_header *table;
 	acpi_physical_address address;
-	acpi_physical_address rsdt_address;
 	u32 length;
 	u8 *table_entry;
 	acpi_status status;
+	u32 table_index;
 
 	ACPI_FUNCTION_TRACE(tb_parse_root_table);
 
@@ -489,14 +300,11 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 		 * as per the ACPI specification.
 		 */
 		address = (acpi_physical_address) rsdp->xsdt_physical_address;
-		rsdt_address =
-		    (acpi_physical_address) rsdp->rsdt_physical_address;
 		table_entry_size = ACPI_XSDT_ENTRY_SIZE;
 	} else {
 		/* Root table is an RSDT (32-bit physical addresses) */
 
 		address = (acpi_physical_address) rsdp->rsdt_physical_address;
-		rsdt_address = address;
 		table_entry_size = ACPI_RSDT_ENTRY_SIZE;
 	}
 
@@ -506,24 +314,6 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 	 */
 	acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
 
-	/*
-	 * If it is present and used, validate the XSDT for access/size
-	 * and ensure that all table entries are at least non-NULL
-	 */
-	if (table_entry_size == ACPI_XSDT_ENTRY_SIZE) {
-		status = acpi_tb_validate_xsdt(address);
-		if (ACPI_FAILURE(status)) {
-			ACPI_BIOS_WARNING((AE_INFO,
-					   "XSDT is invalid (%s), using RSDT",
-					   acpi_format_exception(status)));
-
-			/* Fall back to the RSDT */
-
-			address = rsdt_address;
-			table_entry_size = ACPI_RSDT_ENTRY_SIZE;
-		}
-	}
-
 	/* Map the RSDT/XSDT table header to get the full table length */
 
 	table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
@@ -576,55 +366,36 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 	/* Initialize the root table array from the RSDT/XSDT */
 
 	for (i = 0; i < table_count; i++) {
-		if (acpi_gbl_root_table_list.current_table_count >=
-		    acpi_gbl_root_table_list.max_table_count) {
-
-			/* There is no more room in the root table array, attempt resize */
-
-			status = acpi_tb_resize_root_table_list();
-			if (ACPI_FAILURE(status)) {
-				ACPI_WARNING((AE_INFO,
-					      "Truncating %u table entries!",
-					      (unsigned) (table_count -
-					       (acpi_gbl_root_table_list.
-							  current_table_count -
-							  2))));
-				break;
-			}
-		}
 
 		/* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */
 
-		acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.
-						current_table_count].address =
+		address =
 		    acpi_tb_get_root_table_entry(table_entry, table_entry_size);
 
-		table_entry += table_entry_size;
-		acpi_gbl_root_table_list.current_table_count++;
-	}
-
-	/*
-	 * It is not possible to map more than one entry in some environments,
-	 * so unmap the root table here before mapping other tables
-	 */
-	acpi_os_unmap_memory(table, length);
+		/* Skip NULL entries in RSDT/XSDT */
 
-	/*
-	 * Complete the initialization of the root table array by examining
-	 * the header of each table
-	 */
-	for (i = 2; i < acpi_gbl_root_table_list.current_table_count; i++) {
-		acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
-				      address, NULL, i);
+		if (!address) {
+			goto next_table;
+		}
 
-		/* Special case for FADT - validate it then get the DSDT and FACS */
+		status = acpi_tb_install_standard_table(address,
+							ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL,
+							FALSE, TRUE,
+							&table_index);
 
-		if (ACPI_COMPARE_NAME
-		    (&acpi_gbl_root_table_list.tables[i].signature,
-		     ACPI_SIG_FADT)) {
-			acpi_tb_parse_fadt(i);
+		if (ACPI_SUCCESS(status) &&
+		    ACPI_COMPARE_NAME(&acpi_gbl_root_table_list.
+				      tables[table_index].signature,
+				      ACPI_SIG_FADT)) {
+			acpi_tb_parse_fadt(table_index);
 		}
+
+next_table:
+
+		table_entry += table_entry_size;
 	}
 
+	acpi_os_unmap_memory(table, length);
+
 	return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index a159315..6482b0d 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -206,8 +206,8 @@ acpi_status
 acpi_get_table_header(char *signature,
 		      u32 instance, struct acpi_table_header *out_table_header)
 {
-       u32 i;
-       u32 j;
+	u32 i;
+	u32 j;
 	struct acpi_table_header *header;
 
 	/* Parameter validation */
@@ -233,7 +233,7 @@ acpi_get_table_header(char *signature,
 		if (!acpi_gbl_root_table_list.tables[i].pointer) {
 			if ((acpi_gbl_root_table_list.tables[i].flags &
 			     ACPI_TABLE_ORIGIN_MASK) ==
-			    ACPI_TABLE_ORIGIN_MAPPED) {
+			    ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL) {
 				header =
 				    acpi_os_map_memory(acpi_gbl_root_table_list.
 						       tables[i].address,
@@ -321,8 +321,8 @@ acpi_get_table_with_size(char *signature,
 	       u32 instance, struct acpi_table_header **out_table,
 	       acpi_size *tbl_size)
 {
-       u32 i;
-       u32 j;
+	u32 i;
+	u32 j;
 	acpi_status status;
 
 	/* Parameter validation */
@@ -346,7 +346,7 @@ acpi_get_table_with_size(char *signature,
 		}
 
 		status =
-		    acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
+		    acpi_tb_validate_table(&acpi_gbl_root_table_list.tables[i]);
 		if (ACPI_SUCCESS(status)) {
 			*out_table = acpi_gbl_root_table_list.tables[i].pointer;
 			*tbl_size = acpi_gbl_root_table_list.tables[i].length;
@@ -390,7 +390,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_table)
  *
  ******************************************************************************/
 acpi_status
-acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
+acpi_get_table_by_index(u32 table_index, struct acpi_table_header ** table)
 {
 	acpi_status status;
 
@@ -416,8 +416,8 @@ acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
 		/* Table is not mapped, map it */
 
 		status =
-		    acpi_tb_verify_table(&acpi_gbl_root_table_list.
-					 tables[table_index]);
+		    acpi_tb_validate_table(&acpi_gbl_root_table_list.
+					   tables[table_index]);
 		if (ACPI_FAILURE(status)) {
 			(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 			return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 0909420..ab5308b 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -117,7 +117,7 @@ static acpi_status acpi_tb_load_namespace(void)
 				tables[ACPI_TABLE_INDEX_DSDT].signature),
 			       ACPI_SIG_DSDT)
 	    ||
-	    ACPI_FAILURE(acpi_tb_verify_table
+	    ACPI_FAILURE(acpi_tb_validate_table
 			 (&acpi_gbl_root_table_list.
 			  tables[ACPI_TABLE_INDEX_DSDT]))) {
 		status = AE_NO_ACPI_TABLES;
@@ -128,7 +128,7 @@ static acpi_status acpi_tb_load_namespace(void)
 	 * Save the DSDT pointer for simple access. This is the mapped memory
 	 * address. We must take care here because the address of the .Tables
 	 * array can change dynamically as tables are loaded at run-time. Note:
-	 * .Pointer field is not validated until after call to acpi_tb_verify_table.
+	 * .Pointer field is not validated until after call to acpi_tb_validate_table.
 	 */
 	acpi_gbl_DSDT =
 	    acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer;
@@ -174,24 +174,11 @@ static acpi_status acpi_tb_load_namespace(void)
 					(acpi_gbl_root_table_list.tables[i].
 					 signature), ACPI_SIG_PSDT))
 		    ||
-		    ACPI_FAILURE(acpi_tb_verify_table
+		    ACPI_FAILURE(acpi_tb_validate_table
 				 (&acpi_gbl_root_table_list.tables[i]))) {
 			continue;
 		}
 
-		/*
-		 * Optionally do not load any SSDTs from the RSDT/XSDT. This can
-		 * be useful for debugging ACPI problems on some machines.
-		 */
-		if (acpi_gbl_disable_ssdt_table_load) {
-			ACPI_INFO((AE_INFO, "Ignoring %4.4s at %p",
-				   acpi_gbl_root_table_list.tables[i].signature.
-				   ascii, ACPI_CAST_PTR(void,
-							acpi_gbl_root_table_list.
-							tables[i].address)));
-			continue;
-		}
-
 		/* Ignore errors while loading tables, get as many as possible */
 
 		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
@@ -208,6 +195,45 @@ unlock_and_exit:
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_install_table
+ *
+ * PARAMETERS:  address             - Address of the ACPI table to be installed.
+ *              physical            - Whether the address is a physical table
+ *                                    address or not
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Dynamically install an ACPI table.
+ *              Note: This function should only be invoked after
+ *                    acpi_initialize_tables() and before acpi_load_tables().
+ *
+ ******************************************************************************/
+
+acpi_status __init
+acpi_install_table(acpi_physical_address address, u8 physical)
+{
+	acpi_status status;
+	u8 flags;
+	u32 table_index;
+
+	ACPI_FUNCTION_TRACE(acpi_install_table);
+
+	if (physical) {
+		flags = ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL;
+	} else {
+		flags = ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL;
+	}
+
+	status = acpi_tb_install_standard_table(address, flags,
+						FALSE, FALSE, &table_index);
+
+	return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL_INIT(acpi_install_table)
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_load_table
  *
  * PARAMETERS:  table               - Pointer to a buffer containing the ACPI
@@ -222,11 +248,9 @@ unlock_and_exit:
  *              to ensure that the table is not deleted or unmapped.
  *
  ******************************************************************************/
-
 acpi_status acpi_load_table(struct acpi_table_header *table)
 {
 	acpi_status status;
-	struct acpi_table_desc table_desc;
 	u32 table_index;
 
 	ACPI_FUNCTION_TRACE(acpi_load_table);
@@ -237,14 +261,6 @@ acpi_status acpi_load_table(struct acpi_table_header *table)
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Init local table descriptor */
-
-	ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
-	table_desc.address = ACPI_PTR_TO_PHYSADDR(table);
-	table_desc.pointer = table;
-	table_desc.length = table->length;
-	table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN;
-
 	/* Must acquire the interpreter lock during this operation */
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
@@ -255,7 +271,24 @@ acpi_status acpi_load_table(struct acpi_table_header *table)
 	/* Install the table and load it into the namespace */
 
 	ACPI_INFO((AE_INFO, "Host-directed Dynamic ACPI Table Load:"));
-	status = acpi_tb_add_table(&table_desc, &table_index);
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+	status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table),
+						ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
+						TRUE, FALSE, &table_index);
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	if (ACPI_FAILURE(status)) {
+		goto unlock_and_exit;
+	}
+
+	/*
+	 * Note: Now table is "INSTALLED", it must be validated before
+	 * using.
+	 */
+	status =
+	    acpi_tb_validate_table(&acpi_gbl_root_table_list.
+				   tables[table_index]);
 	if (ACPI_FAILURE(status)) {
 		goto unlock_and_exit;
 	}
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index fbfa9ec..90ec37c 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -462,7 +462,7 @@ 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[ACPI_NOTIFY_MAX + 1] = {
+static const char *acpi_gbl_generic_notify[ACPI_NOTIFY_MAX + 1] = {
 	/* 00 */ "Bus Check",
 	/* 01 */ "Device Check",
 	/* 02 */ "Device Wake",
@@ -473,23 +473,75 @@ static const char *acpi_gbl_notify_value_names[ACPI_NOTIFY_MAX + 1] = {
 	/* 07 */ "Power Fault",
 	/* 08 */ "Capabilities Check",
 	/* 09 */ "Device PLD Check",
-	/* 10 */ "Reserved",
-	/* 11 */ "System Locality Update",
-	/* 12 */ "Shutdown Request"
+	/* 0A */ "Reserved",
+	/* 0B */ "System Locality Update",
+	/* 0C */ "Shutdown Request"
 };
 
-const char *acpi_ut_get_notify_name(u32 notify_value)
+static const char *acpi_gbl_device_notify[4] = {
+	/* 80 */ "Status Change",
+	/* 81 */ "Information Change",
+	/* 82 */ "Device-Specific Change",
+	/* 83 */ "Device-Specific Change"
+};
+
+static const char *acpi_gbl_processor_notify[4] = {
+	/* 80 */ "Performance Capability Change",
+	/* 81 */ "C-State Change",
+	/* 82 */ "Throttling Capability Change",
+	/* 83 */ "Device-Specific Change"
+};
+
+static const char *acpi_gbl_thermal_notify[4] = {
+	/* 80 */ "Thermal Status Change",
+	/* 81 */ "Thermal Trip Point Change",
+	/* 82 */ "Thermal Device List Change",
+	/* 83 */ "Thermal Relationship Change"
+};
+
+const char *acpi_ut_get_notify_name(u32 notify_value, acpi_object_type type)
 {
 
+	/* 00 - 0C are common to all object types */
+
 	if (notify_value <= ACPI_NOTIFY_MAX) {
-		return (acpi_gbl_notify_value_names[notify_value]);
-	} else if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
+		return (acpi_gbl_generic_notify[notify_value]);
+	}
+
+	/* 0D - 7F are reserved */
+
+	if (notify_value <= ACPI_MAX_SYS_NOTIFY) {
 		return ("Reserved");
-	} else if (notify_value <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY) {
-		return ("Device Specific");
-	} else {
-		return ("Hardware Specific");
 	}
+
+	/* 80 - 83 are per-object-type */
+
+	if (notify_value <= 0x83) {
+		switch (type) {
+		case ACPI_TYPE_ANY:
+		case ACPI_TYPE_DEVICE:
+			return (acpi_gbl_device_notify[notify_value - 0x80]);
+
+		case ACPI_TYPE_PROCESSOR:
+			return (acpi_gbl_processor_notify[notify_value - 0x80]);
+
+		case ACPI_TYPE_THERMAL:
+			return (acpi_gbl_thermal_notify[notify_value - 0x80]);
+
+		default:
+			return ("Target object type does not support notifies");
+		}
+	}
+
+	/* 84 - BF are device-specific */
+
+	if (notify_value <= ACPI_MAX_DEVICE_SPECIFIC_NOTIFY) {
+		return ("Device-Specific");
+	}
+
+	/* C0 and above are hardware-specific */
+
+	return ("Hardware-Specific");
 }
 #endif
 
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index f3abeae..d69be3c 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -55,28 +55,7 @@ ACPI_MODULE_NAME("utglobal")
  * Static global variable initialization.
  *
  ******************************************************************************/
-/* Debug output control masks */
-u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
-
-u32 acpi_dbg_layer = 0;
-
-/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
-
-struct acpi_table_fadt acpi_gbl_FADT;
-u32 acpi_gbl_trace_flags;
-acpi_name acpi_gbl_trace_method_name;
-u8 acpi_gbl_system_awake_and_running;
-u32 acpi_current_gpe_count;
-
-/*
- * ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning
- * that the ACPI hardware is no longer required. A flag in the FADT indicates
- * a reduced HW machine, and that flag is duplicated here for convenience.
- */
-u8 acpi_gbl_reduced_hardware;
-
 /* Various state name strings */
-
 const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
 	"\\_S0_",
 	"\\_S1_",
@@ -337,7 +316,6 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_gbl_acpi_hardware_present = TRUE;
 	acpi_gbl_last_owner_id_index = 0;
 	acpi_gbl_next_owner_id_offset = 0;
-	acpi_gbl_trace_method_name = 0;
 	acpi_gbl_trace_dbg_level = 0;
 	acpi_gbl_trace_dbg_layer = 0;
 	acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
@@ -377,9 +355,7 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_gbl_disable_mem_tracking = FALSE;
 #endif
 
-#ifdef ACPI_DEBUGGER
-	acpi_gbl_db_terminate_threads = FALSE;
-#endif
+	ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE);
 
 	return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index 7721933..6dc54b3 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -353,7 +353,7 @@ void acpi_ut_print_string(char *string, u16 max_length)
 	}
 
 	acpi_os_printf("\"");
-	for (i = 0; string[i] && (i < max_length); i++) {
+	for (i = 0; (i < max_length) && string[i]; i++) {
 
 		/* Escape sequences */
 
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
index edd8611..88ef77f 100644
--- a/drivers/acpi/acpica/utxferror.c
+++ b/drivers/acpi/acpica/utxferror.c
@@ -53,6 +53,7 @@ ACPI_MODULE_NAME("utxferror")
  * This module is used for the in-kernel ACPICA as well as the ACPICA
  * tools/applications.
  */
+#ifndef ACPI_NO_ERROR_MESSAGES	/* Entire module */
 /*******************************************************************************
  *
  * FUNCTION:    acpi_error
@@ -249,3 +250,4 @@ acpi_bios_warning(const char *module_name,
 }
 
 ACPI_EXPORT_SYMBOL(acpi_bios_warning)
+#endif				/* ACPI_NO_ERROR_MESSAGES */
diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c
index 1be6f55..a095d4f 100644
--- a/drivers/acpi/apei/einj.c
+++ b/drivers/acpi/apei/einj.c
@@ -202,7 +202,7 @@ static void check_vendor_extension(u64 paddr,
 
 	if (!offset)
 		return;
-	v = acpi_os_map_memory(paddr + offset, sizeof(*v));
+	v = acpi_os_map_iomem(paddr + offset, sizeof(*v));
 	if (!v)
 		return;
 	sbdf = v->pcie_sbdf;
@@ -210,7 +210,7 @@ static void check_vendor_extension(u64 paddr,
 		sbdf >> 24, (sbdf >> 16) & 0xff,
 		(sbdf >> 11) & 0x1f, (sbdf >> 8) & 0x7,
 		 v->vendor_id, v->device_id, v->rev_id);
-	acpi_os_unmap_memory(v, sizeof(*v));
+	acpi_os_unmap_iomem(v, sizeof(*v));
 }
 
 static void *einj_get_parameter_address(void)
@@ -236,7 +236,7 @@ static void *einj_get_parameter_address(void)
 	if (pa_v5) {
 		struct set_error_type_with_address *v5param;
 
-		v5param = acpi_os_map_memory(pa_v5, sizeof(*v5param));
+		v5param = acpi_os_map_iomem(pa_v5, sizeof(*v5param));
 		if (v5param) {
 			acpi5 = 1;
 			check_vendor_extension(pa_v5, v5param);
@@ -246,11 +246,11 @@ static void *einj_get_parameter_address(void)
 	if (param_extension && pa_v4) {
 		struct einj_parameter *v4param;
 
-		v4param = acpi_os_map_memory(pa_v4, sizeof(*v4param));
+		v4param = acpi_os_map_iomem(pa_v4, sizeof(*v4param));
 		if (!v4param)
 			return NULL;
 		if (v4param->reserved1 || v4param->reserved2) {
-			acpi_os_unmap_memory(v4param, sizeof(*v4param));
+			acpi_os_unmap_iomem(v4param, sizeof(*v4param));
 			return NULL;
 		}
 		return v4param;
@@ -794,7 +794,7 @@ err_unmap:
 			sizeof(struct set_error_type_with_address) :
 			sizeof(struct einj_parameter);
 
-		acpi_os_unmap_memory(einj_param, size);
+		acpi_os_unmap_iomem(einj_param, size);
 	}
 	apei_exec_post_unmap_gars(&ctx);
 err_release:
@@ -816,7 +816,7 @@ static void __exit einj_exit(void)
 			sizeof(struct set_error_type_with_address) :
 			sizeof(struct einj_parameter);
 
-		acpi_os_unmap_memory(einj_param, size);
+		acpi_os_unmap_iomem(einj_param, size);
 	}
 	einj_exec_ctx_init(&ctx);
 	apei_exec_post_unmap_gars(&ctx);
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 4ce0ea1..c5bc8cf 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -489,6 +489,9 @@ void __init acpi_early_init(void)
 
 	printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION);
 
+	/* It's safe to verify table checksums during late stage */
+	acpi_gbl_verify_table_checksum = TRUE;
+
 	/* enable workarounds, unless strict ACPI spec. compliance */
 	if (!acpi_strict)
 		acpi_gbl_enable_interpreter_slack = TRUE;
diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c
index de4fe03..85287b8 100644
--- a/drivers/acpi/nvs.c
+++ b/drivers/acpi/nvs.c
@@ -139,8 +139,8 @@ void suspend_nvs_free(void)
 					iounmap(entry->kaddr);
 					entry->unmap = false;
 				} else {
-					acpi_os_unmap_memory(entry->kaddr,
-							     entry->size);
+					acpi_os_unmap_iomem(entry->kaddr,
+							    entry->size);
 				}
 				entry->kaddr = NULL;
 			}
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 6776c59..147bc1b 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -355,7 +355,7 @@ static void acpi_unmap(acpi_physical_address pg_off, void __iomem *vaddr)
 }
 
 void __iomem *__init_refok
-acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
+acpi_os_map_iomem(acpi_physical_address phys, acpi_size size)
 {
 	struct acpi_ioremap *map;
 	void __iomem *virt;
@@ -401,10 +401,17 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
 
 	list_add_tail_rcu(&map->list, &acpi_ioremaps);
 
- out:
+out:
 	mutex_unlock(&acpi_ioremap_lock);
 	return map->virt + (phys - map->phys);
 }
+EXPORT_SYMBOL_GPL(acpi_os_map_iomem);
+
+void *__init_refok
+acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
+{
+	return (void *)acpi_os_map_iomem(phys, size);
+}
 EXPORT_SYMBOL_GPL(acpi_os_map_memory);
 
 static void acpi_os_drop_map_ref(struct acpi_ioremap *map)
@@ -422,7 +429,7 @@ static void acpi_os_map_cleanup(struct acpi_ioremap *map)
 	}
 }
 
-void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
+void __ref acpi_os_unmap_iomem(void __iomem *virt, acpi_size size)
 {
 	struct acpi_ioremap *map;
 
@@ -443,6 +450,12 @@ void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
 
 	acpi_os_map_cleanup(map);
 }
+EXPORT_SYMBOL_GPL(acpi_os_unmap_iomem);
+
+void __ref acpi_os_unmap_memory(void *virt, acpi_size size)
+{
+	return acpi_os_unmap_iomem((void __iomem *)virt, size);
+}
 EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
 
 void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
@@ -464,7 +477,7 @@ int acpi_os_map_generic_address(struct acpi_generic_address *gas)
 	if (!addr || !gas->bit_width)
 		return -EINVAL;
 
-	virt = acpi_os_map_memory(addr, gas->bit_width / 8);
+	virt = acpi_os_map_iomem(addr, gas->bit_width / 8);
 	if (!virt)
 		return -EIO;
 
@@ -1770,16 +1783,15 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
 }
 #endif
 
-static int __init acpi_no_auto_ssdt_setup(char *s)
+static int __init acpi_no_static_ssdt_setup(char *s)
 {
-        printk(KERN_NOTICE PREFIX "SSDT auto-load disabled\n");
+	acpi_gbl_disable_ssdt_table_install = TRUE;
+	pr_info("ACPI: static SSDT installation disabled\n");
 
-        acpi_gbl_disable_ssdt_table_load = TRUE;
-
-        return 1;
+	return 0;
 }
 
-__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);
+early_param("acpi_no_static_ssdt", acpi_no_static_ssdt_setup);
 
 static int __init acpi_disable_return_repair(char *s)
 {
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index 2178229..05550ba 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -44,6 +44,12 @@ static struct acpi_table_desc initial_tables[ACPI_MAX_TABLES] __initdata;
 
 static int acpi_apic_instance __initdata;
 
+/*
+ * Disable table checksum verification for the early stage due to the size
+ * limitation of the current x86 early mapping implementation.
+ */
+static bool acpi_verify_table_checksum __initdata = false;
+
 void acpi_table_print_madt_entry(struct acpi_subtable_header *header)
 {
 	if (!header)
@@ -333,6 +339,14 @@ int __init acpi_table_init(void)
 {
 	acpi_status status;
 
+	if (acpi_verify_table_checksum) {
+		pr_info("Early table checksum verification enabled\n");
+		acpi_gbl_verify_table_checksum = TRUE;
+	} else {
+		pr_info("Early table checksum verification disabled\n");
+		acpi_gbl_verify_table_checksum = FALSE;
+	}
+
 	status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0);
 	if (ACPI_FAILURE(status))
 		return -EINVAL;
@@ -354,3 +368,12 @@ static int __init acpi_parse_apic_instance(char *str)
 }
 
 early_param("acpi_apic_instance", acpi_parse_apic_instance);
+
+static int __init acpi_force_table_verification_setup(char *s)
+{
+	acpi_verify_table_checksum = true;
+
+	return 0;
+}
+
+early_param("acpi_force_table_verification", acpi_force_table_verification_setup);