Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits)
  ACPICA: reduce table header messages to fit within 80 columns
  asus-laptop: merge with ACPICA table update
  ACPI: bay: Convert ACPI Bay driver to be compatible with sysfs update.
  ACPI: bay: new driver is EXPERIMENTAL
  ACPI: bay: make drive_bays static
  ACPI: bay: make bay a platform driver
  ACPI: bay: remove prototype procfs code
  ACPI: bay: delete unused variable
  ACPI: bay: new driver adding removable drive bay support
  ACPI: dock: check if parent is on dock
  ACPICA: fix gcc build warnings
  Altix: Add ACPI SSDT PCI device support (hotplug)
  Altix: ACPI SSDT PCI device support
  ACPICA: reduce conflicts with Altix patch series
  ACPI_NUMA: fix HP IA64 simulator issue with extended memory domain
  ACPI: fix HP RX2600 IA64 boot
  ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT
  ACPICA: Update version to 20070126
  ACPICA: Fix for incorrect parameter passed to AcpiTbDeleteTable during table load.
  ACPICA: Update copyright to 2007.
  ...

11 files changed, 1711 insertions, 2963 deletions

diff --git a/drivers/acpi/tables/Makefile b/drivers/acpi/tables/Makefile
index aa4c69594d9..0a7d7afac25 100644
--- a/drivers/acpi/tables/Makefile
+++ b/drivers/acpi/tables/Makefile
@@ -2,7 +2,6 @@
 # Makefile for all Linux ACPI interpreter subdirectories
 #
 
-obj-y := tbconvrt.o  tbget.o     tbrsdt.o   tbxface.o  \
-	 tbgetall.o  tbinstal.o  tbutils.o  tbxfroot.o
+obj-y := tbxface.o tbinstal.o  tbutils.o tbfind.o tbfadt.o
 
 EXTRA_CFLAGS += $(ACPI_CFLAGS)
diff --git a/drivers/acpi/tables/tbconvrt.c b/drivers/acpi/tables/tbconvrt.c
deleted file mode 100644
index d697fcb35d5..00000000000
--- a/drivers/acpi/tables/tbconvrt.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/******************************************************************************
- *
- * Module Name: tbconvrt - ACPI Table conversion utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2006, R. Byron Moore
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT          ACPI_TABLES
-ACPI_MODULE_NAME("tbconvrt")
-
-/* Local prototypes */
-static void
-acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct,
-			     u8 register_bit_width,
-			     acpi_physical_address address);
-
-static void
-acpi_tb_convert_fadt1(struct fadt_descriptor *local_fadt,
-		      struct fadt_descriptor_rev1 *original_fadt);
-
-static void
-acpi_tb_convert_fadt2(struct fadt_descriptor *local_fadt,
-		      struct fadt_descriptor *original_fadt);
-
-u8 acpi_fadt_is_v1;
-ACPI_EXPORT_SYMBOL(acpi_fadt_is_v1)
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_table_count
- *
- * PARAMETERS:  RSDP            - Pointer to the RSDP
- *              RSDT            - Pointer to the RSDT/XSDT
- *
- * RETURN:      The number of tables pointed to by the RSDT or XSDT.
- *
- * DESCRIPTION: Calculate the number of tables.  Automatically handles either
- *              an RSDT or XSDT.
- *
- ******************************************************************************/
-
-u32
-acpi_tb_get_table_count(struct rsdp_descriptor *RSDP,
-			struct acpi_table_header *RSDT)
-{
-	u32 pointer_size;
-
-	ACPI_FUNCTION_ENTRY();
-
-	/* RSDT pointers are 32 bits, XSDT pointers are 64 bits */
-
-	if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
-		pointer_size = sizeof(u32);
-	} else {
-		pointer_size = sizeof(u64);
-	}
-
-	/*
-	 * Determine the number of tables pointed to by the RSDT/XSDT.
-	 * This is defined by the ACPI Specification to be the number of
-	 * pointers contained within the RSDT/XSDT.  The size of the pointers
-	 * is architecture-dependent.
-	 */
-	return ((RSDT->length -
-		 sizeof(struct acpi_table_header)) / pointer_size);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_convert_to_xsdt
- *
- * PARAMETERS:  table_info      - Info about the RSDT
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert an RSDT to an XSDT (internal common format)
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info)
-{
-	acpi_size table_size;
-	u32 i;
-	struct xsdt_descriptor *new_table;
-
-	ACPI_FUNCTION_ENTRY();
-
-	/* Compute size of the converted XSDT */
-
-	table_size = ((acpi_size) acpi_gbl_rsdt_table_count * sizeof(u64)) +
-	    sizeof(struct acpi_table_header);
-
-	/* Allocate an XSDT */
-
-	new_table = ACPI_ALLOCATE_ZEROED(table_size);
-	if (!new_table) {
-		return (AE_NO_MEMORY);
-	}
-
-	/* Copy the header and set the length */
-
-	ACPI_MEMCPY(new_table, table_info->pointer,
-		    sizeof(struct acpi_table_header));
-	new_table->length = (u32) table_size;
-
-	/* Copy the table pointers */
-
-	for (i = 0; i < acpi_gbl_rsdt_table_count; i++) {
-
-		/* RSDT pointers are 32 bits, XSDT pointers are 64 bits */
-
-		if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
-			ACPI_STORE_ADDRESS(new_table->table_offset_entry[i],
-					   (ACPI_CAST_PTR
-					    (struct rsdt_descriptor,
-					     table_info->pointer))->
-					   table_offset_entry[i]);
-		} else {
-			new_table->table_offset_entry[i] =
-			    (ACPI_CAST_PTR(struct xsdt_descriptor,
-					   table_info->pointer))->
-			    table_offset_entry[i];
-		}
-	}
-
-	/* Delete the original table (either mapped or in a buffer) */
-
-	acpi_tb_delete_single_table(table_info);
-
-	/* Point the table descriptor to the new table */
-
-	table_info->pointer =
-	    ACPI_CAST_PTR(struct acpi_table_header, new_table);
-	table_info->length = table_size;
-	table_info->allocation = ACPI_MEM_ALLOCATED;
-
-	return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_init_generic_address
- *
- * PARAMETERS:  new_gas_struct      - GAS struct to be initialized
- *              register_bit_width  - Width of this register
- *              Address             - Address of the register
- *
- * RETURN:      None
- *
- * DESCRIPTION: Initialize a GAS structure.
- *
- ******************************************************************************/
-
-static void
-acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct,
-			     u8 register_bit_width,
-			     acpi_physical_address address)
-{
-
-	ACPI_STORE_ADDRESS(new_gas_struct->address, address);
-
-	new_gas_struct->address_space_id = ACPI_ADR_SPACE_SYSTEM_IO;
-	new_gas_struct->register_bit_width = register_bit_width;
-	new_gas_struct->register_bit_offset = 0;
-	new_gas_struct->access_width = 0;
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_convert_fadt1
- *
- * PARAMETERS:  local_fadt      - Pointer to new FADT
- *              original_fadt   - Pointer to old FADT
- *
- * RETURN:      None, populates local_fadt
- *
- * DESCRIPTION: Convert an ACPI 1.0 FADT to common internal format
- *
- ******************************************************************************/
-
-static void
-acpi_tb_convert_fadt1(struct fadt_descriptor *local_fadt,
-		      struct fadt_descriptor_rev1 *original_fadt)
-{
-
-	/* ACPI 1.0 FACS */
-	/* The BIOS stored FADT should agree with Revision 1.0 */
-	acpi_fadt_is_v1 = 1;
-
-	/*
-	 * Copy the table header and the common part of the tables.
-	 *
-	 * The 2.0 table is an extension of the 1.0 table, so the entire 1.0
-	 * table can be copied first, then expand some fields to 64 bits.
-	 */
-	ACPI_MEMCPY(local_fadt, original_fadt,
-		    sizeof(struct fadt_descriptor_rev1));
-
-	/* Convert table pointers to 64-bit fields */
-
-	ACPI_STORE_ADDRESS(local_fadt->xfirmware_ctrl,
-			   local_fadt->V1_firmware_ctrl);
-	ACPI_STORE_ADDRESS(local_fadt->Xdsdt, local_fadt->V1_dsdt);
-
-	/*
-	 * System Interrupt Model isn't used in ACPI 2.0
-	 * (local_fadt->Reserved1 = 0;)
-	 */
-
-	/*
-	 * This field is set by the OEM to convey the preferred power management
-	 * profile to OSPM. It doesn't have any 1.0 equivalence.  Since we don't
-	 * know what kind of 32-bit system this is, we will use "unspecified".
-	 */
-	local_fadt->prefer_PM_profile = PM_UNSPECIFIED;
-
-	/*
-	 * Processor Performance State Control. This is the value OSPM writes to
-	 * the SMI_CMD register to assume processor performance state control
-	 * responsibility. There isn't any equivalence in 1.0, but as many 1.x
-	 * ACPI tables contain _PCT and _PSS we also keep this value, unless
-	 * acpi_strict is set.
-	 */
-	if (acpi_strict)
-		local_fadt->pstate_cnt = 0;
-
-	/*
-	 * Support for the _CST object and C States change notification.
-	 * This data item hasn't any 1.0 equivalence so leave it zero.
-	 */
-	local_fadt->cst_cnt = 0;
-
-	/*
-	 * FADT Rev 2 was an interim FADT released between ACPI 1.0 and ACPI 2.0.
-	 * It primarily adds the FADT reset mechanism.
-	 */
-	if ((original_fadt->revision == 2) &&
-	    (original_fadt->length ==
-	     sizeof(struct fadt_descriptor_rev2_minus))) {
-		/*
-		 * Grab the entire generic address struct, plus the 1-byte reset value
-		 * that immediately follows.
-		 */
-		ACPI_MEMCPY(&local_fadt->reset_register,
-			    &(ACPI_CAST_PTR(struct fadt_descriptor_rev2_minus,
-					    original_fadt))->reset_register,
-			    sizeof(struct acpi_generic_address) + 1);
-	} else {
-		/*
-		 * Since there isn't any equivalence in 1.0 and since it is highly
-		 * likely that a 1.0 system has legacy support.
-		 */
-		local_fadt->iapc_boot_arch = BAF_LEGACY_DEVICES;
-	}
-
-	/*
-	 * Convert the V1.0 block addresses to V2.0 GAS structures
-	 */
-	acpi_tb_init_generic_address(&local_fadt->xpm1a_evt_blk,
-				     local_fadt->pm1_evt_len,
-				     (acpi_physical_address) local_fadt->
-				     V1_pm1a_evt_blk);
-	acpi_tb_init_generic_address(&local_fadt->xpm1b_evt_blk,
-				     local_fadt->pm1_evt_len,
-				     (acpi_physical_address) local_fadt->
-				     V1_pm1b_evt_blk);
-	acpi_tb_init_generic_address(&local_fadt->xpm1a_cnt_blk,
-				     local_fadt->pm1_cnt_len,
-				     (acpi_physical_address) local_fadt->
-				     V1_pm1a_cnt_blk);
-	acpi_tb_init_generic_address(&local_fadt->xpm1b_cnt_blk,
-				     local_fadt->pm1_cnt_len,
-				     (acpi_physical_address) local_fadt->
-				     V1_pm1b_cnt_blk);
-	acpi_tb_init_generic_address(&local_fadt->xpm2_cnt_blk,
-				     local_fadt->pm2_cnt_len,
-				     (acpi_physical_address) local_fadt->
-				     V1_pm2_cnt_blk);
-	acpi_tb_init_generic_address(&local_fadt->xpm_tmr_blk,
-				     local_fadt->pm_tm_len,
-				     (acpi_physical_address) local_fadt->
-				     V1_pm_tmr_blk);
-	acpi_tb_init_generic_address(&local_fadt->xgpe0_blk, 0,
-				     (acpi_physical_address) local_fadt->
-				     V1_gpe0_blk);
-	acpi_tb_init_generic_address(&local_fadt->xgpe1_blk, 0,
-				     (acpi_physical_address) local_fadt->
-				     V1_gpe1_blk);
-
-	/* Create separate GAS structs for the PM1 Enable registers */
-
-	acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
-				     (u8) ACPI_DIV_2(acpi_gbl_FADT->
-						     pm1_evt_len),
-				     (acpi_physical_address)
-				     (local_fadt->xpm1a_evt_blk.address +
-				      ACPI_DIV_2(acpi_gbl_FADT->pm1_evt_len)));
-
-	/* PM1B is optional; leave null if not present */
-
-	if (local_fadt->xpm1b_evt_blk.address) {
-		acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
-					     (u8) ACPI_DIV_2(acpi_gbl_FADT->
-							     pm1_evt_len),
-					     (acpi_physical_address)
-					     (local_fadt->xpm1b_evt_blk.
-					      address +
-					      ACPI_DIV_2(acpi_gbl_FADT->
-							 pm1_evt_len)));
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_convert_fadt2
- *
- * PARAMETERS:  local_fadt      - Pointer to new FADT
- *              original_fadt   - Pointer to old FADT
- *
- * RETURN:      None, populates local_fadt
- *
- * DESCRIPTION: Convert an ACPI 2.0 FADT to common internal format.
- *              Handles optional "X" fields.
- *
- ******************************************************************************/
-
-static void
-acpi_tb_convert_fadt2(struct fadt_descriptor *local_fadt,
-		      struct fadt_descriptor *original_fadt)
-{
-
-	/* We have an ACPI 2.0 FADT but we must copy it to our local buffer */
-
-	ACPI_MEMCPY(local_fadt, original_fadt, sizeof(struct fadt_descriptor));
-
-	/*
-	 * "X" fields are optional extensions to the original V1.0 fields, so
-	 * we must selectively expand V1.0 fields if the corresponding X field
-	 * is zero.
-	 */
-	if (!(local_fadt->xfirmware_ctrl)) {
-		ACPI_STORE_ADDRESS(local_fadt->xfirmware_ctrl,
-				   local_fadt->V1_firmware_ctrl);
-	}
-
-	if (!(local_fadt->Xdsdt)) {
-		ACPI_STORE_ADDRESS(local_fadt->Xdsdt, local_fadt->V1_dsdt);
-	}
-
-	if (!(local_fadt->xpm1a_evt_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xpm1a_evt_blk,
-					     local_fadt->pm1_evt_len,
-					     (acpi_physical_address)
-					     local_fadt->V1_pm1a_evt_blk);
-	}
-
-	if (!(local_fadt->xpm1b_evt_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xpm1b_evt_blk,
-					     local_fadt->pm1_evt_len,
-					     (acpi_physical_address)
-					     local_fadt->V1_pm1b_evt_blk);
-	}
-
-	if (!(local_fadt->xpm1a_cnt_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xpm1a_cnt_blk,
-					     local_fadt->pm1_cnt_len,
-					     (acpi_physical_address)
-					     local_fadt->V1_pm1a_cnt_blk);
-	}
-
-	if (!(local_fadt->xpm1b_cnt_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xpm1b_cnt_blk,
-					     local_fadt->pm1_cnt_len,
-					     (acpi_physical_address)
-					     local_fadt->V1_pm1b_cnt_blk);
-	}
-
-	if (!(local_fadt->xpm2_cnt_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xpm2_cnt_blk,
-					     local_fadt->pm2_cnt_len,
-					     (acpi_physical_address)
-					     local_fadt->V1_pm2_cnt_blk);
-	}
-
-	if (!(local_fadt->xpm_tmr_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xpm_tmr_blk,
-					     local_fadt->pm_tm_len,
-					     (acpi_physical_address)
-					     local_fadt->V1_pm_tmr_blk);
-	}
-
-	if (!(local_fadt->xgpe0_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xgpe0_blk,
-					     0,
-					     (acpi_physical_address)
-					     local_fadt->V1_gpe0_blk);
-	}
-
-	if (!(local_fadt->xgpe1_blk.address)) {
-		acpi_tb_init_generic_address(&local_fadt->xgpe1_blk,
-					     0,
-					     (acpi_physical_address)
-					     local_fadt->V1_gpe1_blk);
-	}
-
-	/* Create separate GAS structs for the PM1 Enable registers */
-
-	acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
-				     (u8) ACPI_DIV_2(acpi_gbl_FADT->
-						     pm1_evt_len),
-				     (acpi_physical_address)
-				     (local_fadt->xpm1a_evt_blk.address +
-				      ACPI_DIV_2(acpi_gbl_FADT->pm1_evt_len)));
-
-	acpi_gbl_xpm1a_enable.address_space_id =
-	    local_fadt->xpm1a_evt_blk.address_space_id;
-
-	/* PM1B is optional; leave null if not present */
-
-	if (local_fadt->xpm1b_evt_blk.address) {
-		acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
-					     (u8) ACPI_DIV_2(acpi_gbl_FADT->
-							     pm1_evt_len),
-					     (acpi_physical_address)
-					     (local_fadt->xpm1b_evt_blk.
-					      address +
-					      ACPI_DIV_2(acpi_gbl_FADT->
-							 pm1_evt_len)));
-
-		acpi_gbl_xpm1b_enable.address_space_id =
-		    local_fadt->xpm1b_evt_blk.address_space_id;
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_convert_table_fadt
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Converts a BIOS supplied ACPI 1.0 FADT to a local
- *              ACPI 2.0 FADT. If the BIOS supplied a 2.0 FADT then it is simply
- *              copied to the local FADT.  The ACPI CA software uses this
- *              local FADT. Thus a significant amount of special #ifdef
- *              type codeing is saved.
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_convert_table_fadt(void)
-{
-	struct fadt_descriptor *local_fadt;
-	struct acpi_table_desc *table_desc;
-
-	ACPI_FUNCTION_TRACE(tb_convert_table_fadt);
-
-	/*
-	 * acpi_gbl_FADT is valid. Validate the FADT length. The table must be
-	 * at least as long as the version 1.0 FADT
-	 */
-	if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor_rev1)) {
-		ACPI_ERROR((AE_INFO, "FADT is invalid, too short: 0x%X",
-			    acpi_gbl_FADT->length));
-		return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
-	}
-
-	/* Allocate buffer for the ACPI 2.0(+) FADT */
-
-	local_fadt = ACPI_ALLOCATE_ZEROED(sizeof(struct fadt_descriptor));
-	if (!local_fadt) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
-	}
-
-	if (acpi_gbl_FADT->revision >= FADT2_REVISION_ID) {
-		if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor)) {
-
-			/* Length is too short to be a V2.0 table */
-
-			ACPI_WARNING((AE_INFO,
-				      "Inconsistent FADT length (0x%X) and revision (0x%X), using FADT V1.0 portion of table",
-				      acpi_gbl_FADT->length,
-				      acpi_gbl_FADT->revision));
-
-			acpi_tb_convert_fadt1(local_fadt,
-					      (void *)acpi_gbl_FADT);
-		} else {
-			/* Valid V2.0 table */
-
-			acpi_tb_convert_fadt2(local_fadt, acpi_gbl_FADT);
-		}
-	} else {
-		/* Valid V1.0 table */
-
-		acpi_tb_convert_fadt1(local_fadt, (void *)acpi_gbl_FADT);
-	}
-
-	/* Global FADT pointer will point to the new common V2.0 FADT */
-
-	acpi_gbl_FADT = local_fadt;
-	acpi_gbl_FADT->length = sizeof(struct fadt_descriptor);
-
-	/* Free the original table */
-
-	table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_FADT].next;
-	acpi_tb_delete_single_table(table_desc);
-
-	/* Install the new table */
-
-	table_desc->pointer =
-	    ACPI_CAST_PTR(struct acpi_table_header, acpi_gbl_FADT);
-	table_desc->allocation = ACPI_MEM_ALLOCATED;
-	table_desc->length = sizeof(struct fadt_descriptor);
-
-	/* Dump the entire FADT */
-
-	ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
-			  "Hex dump of common internal FADT, size %d (%X)\n",
-			  acpi_gbl_FADT->length, acpi_gbl_FADT->length));
-
-	ACPI_DUMP_BUFFER(ACPI_CAST_PTR(u8, acpi_gbl_FADT),
-			 acpi_gbl_FADT->length);
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_build_common_facs
- *
- * PARAMETERS:  table_info      - Info for currently installed FACS
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Convert ACPI 1.0 and ACPI 2.0 FACS to a common internal
- *              table format.
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_build_common_facs(struct acpi_table_desc *table_info)
-{
-
-	ACPI_FUNCTION_TRACE(tb_build_common_facs);
-
-	/* Absolute minimum length is 24, but the ACPI spec says 64 */
-
-	if (acpi_gbl_FACS->length < 24) {
-		ACPI_ERROR((AE_INFO, "Invalid FACS table length: 0x%X",
-			    acpi_gbl_FACS->length));
-		return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
-	}
-
-	if (acpi_gbl_FACS->length < 64) {
-		ACPI_WARNING((AE_INFO,
-			      "FACS is shorter than the ACPI specification allows: 0x%X, using anyway",
-			      acpi_gbl_FACS->length));
-	}
-
-	/* Copy fields to the new FACS */
-
-	acpi_gbl_common_fACS.global_lock = &(acpi_gbl_FACS->global_lock);
-
-	if ((acpi_gbl_RSDP->revision < 2) ||
-	    (acpi_gbl_FACS->length < 32) ||
-	    (!(acpi_gbl_FACS->xfirmware_waking_vector))) {
-
-		/* ACPI 1.0 FACS or short table or optional X_ field is zero */
-
-		acpi_gbl_common_fACS.firmware_waking_vector = ACPI_CAST_PTR(u64,
-									    &
-									    (acpi_gbl_FACS->
-									     firmware_waking_vector));
-		acpi_gbl_common_fACS.vector_width = 32;
-	} else {
-		/* ACPI 2.0 FACS with valid X_ field */
-
-		acpi_gbl_common_fACS.firmware_waking_vector =
-		    &acpi_gbl_FACS->xfirmware_waking_vector;
-		acpi_gbl_common_fACS.vector_width = 64;
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c
new file mode 100644
index 00000000000..807c7116e94
--- /dev/null
+++ b/drivers/acpi/tables/tbfadt.c
@@ -0,0 +1,434 @@
+/******************************************************************************
+ *
+ * Module Name: tbfadt   - FADT table utilities
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2007, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT          ACPI_TABLES
+ACPI_MODULE_NAME("tbfadt")
+
+/* Local prototypes */
+static void inline
+acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
+			     u8 bit_width, u64 address);
+
+static void acpi_tb_convert_fadt(void);
+
+static void acpi_tb_validate_fadt(void);
+
+/* Table for conversion of FADT to common internal format and FADT validation */
+
+typedef struct acpi_fadt_info {
+	char *name;
+	u8 target;
+	u8 source;
+	u8 length;
+	u8 type;
+
+} acpi_fadt_info;
+
+#define ACPI_FADT_REQUIRED          1
+#define ACPI_FADT_SEPARATE_LENGTH   2
+
+static struct acpi_fadt_info fadt_info_table[] = {
+	{"Pm1aEventBlock", ACPI_FADT_OFFSET(xpm1a_event_block),
+	 ACPI_FADT_OFFSET(pm1a_event_block),
+	 ACPI_FADT_OFFSET(pm1_event_length), ACPI_FADT_REQUIRED},
+
+	{"Pm1bEventBlock", ACPI_FADT_OFFSET(xpm1b_event_block),
+	 ACPI_FADT_OFFSET(pm1b_event_block),
+	 ACPI_FADT_OFFSET(pm1_event_length), 0},
+
+	{"Pm1aControlBlock", ACPI_FADT_OFFSET(xpm1a_control_block),
+	 ACPI_FADT_OFFSET(pm1a_control_block),
+	 ACPI_FADT_OFFSET(pm1_control_length), ACPI_FADT_REQUIRED},
+
+	{"Pm1bControlBlock", ACPI_FADT_OFFSET(xpm1b_control_block),
+	 ACPI_FADT_OFFSET(pm1b_control_block),
+	 ACPI_FADT_OFFSET(pm1_control_length), 0},
+
+	{"Pm2ControlBlock", ACPI_FADT_OFFSET(xpm2_control_block),
+	 ACPI_FADT_OFFSET(pm2_control_block),
+	 ACPI_FADT_OFFSET(pm2_control_length), ACPI_FADT_SEPARATE_LENGTH},
+
+	{"PmTimerBlock", ACPI_FADT_OFFSET(xpm_timer_block),
+	 ACPI_FADT_OFFSET(pm_timer_block),
+	 ACPI_FADT_OFFSET(pm_timer_length), ACPI_FADT_REQUIRED},
+
+	{"Gpe0Block", ACPI_FADT_OFFSET(xgpe0_block),
+	 ACPI_FADT_OFFSET(gpe0_block),
+	 ACPI_FADT_OFFSET(gpe0_block_length), ACPI_FADT_SEPARATE_LENGTH},
+
+	{"Gpe1Block", ACPI_FADT_OFFSET(xgpe1_block),
+	 ACPI_FADT_OFFSET(gpe1_block),
+	 ACPI_FADT_OFFSET(gpe1_block_length), ACPI_FADT_SEPARATE_LENGTH}
+};
+
+#define ACPI_FADT_INFO_ENTRIES        (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info))
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_init_generic_address
+ *
+ * PARAMETERS:  generic_address     - GAS struct to be initialized
+ *              bit_width           - Width of this register
+ *              Address             - Address of the register
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Initialize a Generic Address Structure (GAS)
+ *              See the ACPI specification for a full description and
+ *              definition of this structure.
+ *
+ ******************************************************************************/
+
+static void inline
+acpi_tb_init_generic_address(struct acpi_generic_address *generic_address,
+			     u8 bit_width, u64 address)
+{
+
+	/*
+	 * The 64-bit Address field is non-aligned in the byte packed
+	 * GAS struct.
+	 */
+	ACPI_MOVE_64_TO_64(&generic_address->address, &address);
+
+	/* All other fields are byte-wide */
+
+	generic_address->space_id = ACPI_ADR_SPACE_SYSTEM_IO;
+	generic_address->bit_width = bit_width;
+	generic_address->bit_offset = 0;
+	generic_address->access_width = 0;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_parse_fadt
+ *
+ * PARAMETERS:  table_index         - Index for the FADT
+ *              Flags               - Flags
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Initialize the FADT, DSDT and FACS tables
+ *              (FADT contains the addresses of the DSDT and FACS)
+ *
+ ******************************************************************************/
+
+void acpi_tb_parse_fadt(acpi_native_uint table_index, u8 flags)
+{
+	u32 length;
+	struct acpi_table_header *table;
+
+	/*
+	 * The FADT has multiple versions with different lengths,
+	 * and it contains pointers to both the DSDT and FACS tables.
+	 *
+	 * Get a local copy of the FADT and convert it to a common format
+	 * Map entire FADT, assumed to be smaller than one page.
+	 */
+	length = acpi_gbl_root_table_list.tables[table_index].length;
+
+	table =
+	    acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
+			       address, length);
+	if (!table) {
+		return;
+	}
+
+	/*
+	 * Validate the FADT checksum before we copy the table. Ignore
+	 * checksum error as we want to try to get the DSDT and FACS.
+	 */
+	(void)acpi_tb_verify_checksum(table, length);
+
+	/* Obtain a local copy of the FADT in common ACPI 2.0+ format */
+
+	acpi_tb_create_local_fadt(table, length);
+
+	/* All done with the real FADT, unmap it */
+
+	acpi_os_unmap_memory(table, length);
+
+	/* Obtain the DSDT and FACS tables via their addresses within the FADT */
+
+	acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
+			      flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
+
+	acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs,
+			      flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_create_local_fadt
+ *
+ * PARAMETERS:  Table               - Pointer to BIOS FADT
+ *              Length              - Length of the table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Get a local copy of the FADT and convert it to a common format.
+ *              Performs validation on some important FADT fields.
+ *
+ ******************************************************************************/
+
+void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length)
+{
+
+	/*
+	 * Check if the FADT is larger than what we know about (ACPI 2.0 version).
+	 * Truncate the table, but make some noise.
+	 */
+	if (length > sizeof(struct acpi_table_fadt)) {
+		ACPI_WARNING((AE_INFO,
+			      "FADT (revision %u) is longer than ACPI 2.0 version, truncating length 0x%X to 0x%zX",
+			      table->revision, (unsigned)length,
+			      sizeof(struct acpi_table_fadt)));
+	}
+
+	/* Copy the entire FADT locally. Zero first for tb_convert_fadt */
+
+	ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt));
+
+	ACPI_MEMCPY(&acpi_gbl_FADT, table,
+		    ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
+
+	/*
+	 * 1) Convert the local copy of the FADT to the common internal format
+	 * 2) Validate some of the important values within the FADT
+	 */
+	acpi_tb_convert_fadt();
+	acpi_tb_validate_fadt();
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_convert_fadt
+ *
+ * PARAMETERS:  None, uses acpi_gbl_FADT
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Converts all versions of the FADT to a common internal format.
+ *              -> Expand all 32-bit addresses to 64-bit.
+ *
+ * NOTE:        acpi_gbl_FADT must be of size (struct acpi_table_fadt),
+ *              and must contain a copy of the actual FADT.
+ *
+ * ACPICA will use the "X" fields of the FADT for all addresses.
+ *
+ * "X" fields are optional extensions to the original V1.0 fields. Even if
+ * they are present in the structure, they can be optionally not used by
+ * setting them to zero. Therefore, we must selectively expand V1.0 fields
+ * if the corresponding X field is zero.
+ *
+ * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding
+ * "X" fields.
+ *
+ * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by
+ * expanding the corresponding ACPI 1.0 field.
+ *
+ ******************************************************************************/
+
+static void acpi_tb_convert_fadt(void)
+{
+	u8 pm1_register_length;
+	struct acpi_generic_address *target;
+	acpi_native_uint i;
+
+	/* Update the local FADT table header length */
+
+	acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt);
+
+	/* Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary */
+
+	if (!acpi_gbl_FADT.Xfacs) {
+		acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
+	}
+
+	if (!acpi_gbl_FADT.Xdsdt) {
+		acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt;
+	}
+
+	/*
+	 * Expand the 32-bit V1.0 addresses to the 64-bit "X" generic address
+	 * structures as necessary.
+	 */
+	for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+		target =
+		    ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
+				 fadt_info_table[i].target);
+
+		/* Expand only if the X target is null */
+
+		if (!target->address) {
+			acpi_tb_init_generic_address(target,
+						     *ACPI_ADD_PTR(u8,
+								   &acpi_gbl_FADT,
+								   fadt_info_table
+								   [i].length),
+						     (u64) * ACPI_ADD_PTR(u32,
+									  &acpi_gbl_FADT,
+									  fadt_info_table
+									  [i].
+									  source));
+		}
+	}
+
+	/*
+	 * Calculate separate GAS structs for the PM1 Enable registers.
+	 * These addresses do not appear (directly) in the FADT, so it is
+	 * useful to calculate them once, here.
+	 *
+	 * The PM event blocks are split into two register blocks, first is the
+	 * PM Status Register block, followed immediately by the PM Enable Register
+	 * block. Each is of length (pm1_event_length/2)
+	 */
+	pm1_register_length = (u8) ACPI_DIV_2(acpi_gbl_FADT.pm1_event_length);
+
+	/* The PM1A register block is required */
+
+	acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
+				     pm1_register_length,
+				     (acpi_gbl_FADT.xpm1a_event_block.address +
+				      pm1_register_length));
+	/* Don't forget to copy space_id of the GAS */
+	acpi_gbl_xpm1a_enable.space_id = acpi_gbl_FADT.xpm1a_event_block.space_id;
+
+	/* The PM1B register block is optional, ignore if not present */
+
+	if (acpi_gbl_FADT.xpm1b_event_block.address) {
+		acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
+					     pm1_register_length,
+					     (acpi_gbl_FADT.xpm1b_event_block.
+					      address + pm1_register_length));
+		/* Don't forget to copy space_id of the GAS */
+		acpi_gbl_xpm1b_enable.space_id = acpi_gbl_FADT.xpm1a_event_block.space_id;
+
+	}
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_validate_fadt
+ *
+ * PARAMETERS:  Table           - Pointer to the FADT to be validated
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Validate various important fields within the FADT. If a problem
+ *              is found, issue a message, but no status is returned.
+ *              Used by both the table manager and the disassembler.
+ *
+ * Possible additional checks:
+ * (acpi_gbl_FADT.pm1_event_length >= 4)
+ * (acpi_gbl_FADT.pm1_control_length >= 2)
+ * (acpi_gbl_FADT.pm_timer_length >= 4)
+ * Gpe block lengths must be multiple of 2
+ *
+ ******************************************************************************/
+
+static void acpi_tb_validate_fadt(void)
+{
+	u32 *address32;
+	struct acpi_generic_address *address64;
+	u8 length;
+	acpi_native_uint i;
+
+	/* Examine all of the 64-bit extended address fields (X fields) */
+
+	for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
+
+		/* Generate pointers to the 32-bit and 64-bit addresses and get the length */
+
+		address64 =
+		    ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
+				 fadt_info_table[i].target);
+		address32 =
+		    ACPI_ADD_PTR(u32, &acpi_gbl_FADT,
+				 fadt_info_table[i].source);
+		length =
+		    *ACPI_ADD_PTR(u8, &acpi_gbl_FADT,
+				  fadt_info_table[i].length);
+
+		if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
+			/*
+			 * Field is required (Pm1a_event, Pm1a_control, pm_timer).
+			 * Both the address and length must be non-zero.
+			 */
+			if (!address64->address || !length) {
+				ACPI_ERROR((AE_INFO,
+					    "Required field \"%s\" has zero address and/or length: %8.8X%8.8X/%X",
+					    fadt_info_table[i].name,
+					    ACPI_FORMAT_UINT64(address64->
+							       address),
+					    length));
+			}
+		} else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) {
+			/*
+			 * Field is optional (PM2Control, GPE0, GPE1) AND has its own
+			 * length field. If present, both the address and length must be valid.
+			 */
+			if ((address64->address && !length)
+			    || (!address64->address && length)) {
+				ACPI_WARNING((AE_INFO,
+					      "Optional field \"%s\" has zero address or length: %8.8X%8.8X/%X",
+					      fadt_info_table[i].name,
+					      ACPI_FORMAT_UINT64(address64->
+								 address),
+					      length));
+			}
+		}
+
+		/* If both 32- and 64-bit addresses are valid (non-zero), they must match */
+
+		if (address64->address && *address32 &&
+		    (address64->address != (u64) * address32)) {
+			ACPI_ERROR((AE_INFO,
+				    "32/64X address mismatch in \"%s\": [%8.8X] [%8.8X%8.8X], using 64X",
+				    fadt_info_table[i].name, *address32,
+				    ACPI_FORMAT_UINT64(address64->address)));
+		}
+	}
+}
diff --git a/drivers/acpi/tables/tbfind.c b/drivers/acpi/tables/tbfind.c
new file mode 100644
index 00000000000..058c064948e
--- /dev/null
+++ b/drivers/acpi/tables/tbfind.c
@@ -0,0 +1,126 @@
+/******************************************************************************
+ *
+ * Module Name: tbfind   - find table
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2007, R. Byron Moore
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include <acpi/actables.h>
+
+#define _COMPONENT          ACPI_TABLES
+ACPI_MODULE_NAME("tbfind")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_find_table
+ *
+ * PARAMETERS:  Signature           - String with ACPI table signature
+ *              oem_id              - String with the table OEM ID
+ *              oem_table_id        - String with the OEM Table ID
+ *              table_index         - Where the table index is returned
+ *
+ * RETURN:      Status and table index
+ *
+ * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the
+ *              Signature, OEM ID and OEM Table ID. Returns an index that can
+ *              be used to get the table header or entire table.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_tb_find_table(char *signature,
+		   char *oem_id,
+		   char *oem_table_id, acpi_native_uint * table_index)
+{
+	acpi_native_uint i;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(tb_find_table);
+
+	for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+		if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature),
+				signature, ACPI_NAME_SIZE)) {
+
+			/* Not the requested table */
+
+			continue;
+		}
+
+		/* Table with matching signature has been found */
+
+		if (!acpi_gbl_root_table_list.tables[i].pointer) {
+
+			/* Table is not currently mapped, map it */
+
+			status =
+			    acpi_tb_verify_table(&acpi_gbl_root_table_list.
+						 tables[i]);
+			if (ACPI_FAILURE(status)) {
+				return_ACPI_STATUS(status);
+			}
+
+			if (!acpi_gbl_root_table_list.tables[i].pointer) {
+				continue;
+			}
+		}
+
+		/* Check for table match on all IDs */
+
+		if (!ACPI_MEMCMP
+		    (acpi_gbl_root_table_list.tables[i].pointer->signature,
+		     signature, ACPI_NAME_SIZE) && (!oem_id[0]
+						    ||
+						    !ACPI_MEMCMP
+						    (acpi_gbl_root_table_list.
+						     tables[i].pointer->oem_id,
+						     oem_id, ACPI_OEM_ID_SIZE))
+		    && (!oem_table_id[0]
+			|| !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i].
+					pointer->oem_table_id, oem_table_id,
+					ACPI_OEM_TABLE_ID_SIZE))) {
+			*table_index = i;
+
+			ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
+					  "Found table [%4.4s]\n", signature));
+			return_ACPI_STATUS(AE_OK);
+		}
+	}
+
+	return_ACPI_STATUS(AE_NOT_FOUND);
+}
diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c
deleted file mode 100644
index 11e2d4454e0..00000000000
--- a/drivers/acpi/tables/tbget.c
+++ /dev/null
@@ -1,471 +0,0 @@
-/******************************************************************************
- *
- * Module Name: tbget - ACPI Table get* routines
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2006, R. Byron Moore
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT          ACPI_TABLES
-ACPI_MODULE_NAME("tbget")
-
-/* Local prototypes */
-static acpi_status
-acpi_tb_get_this_table(struct acpi_pointer *address,
-		       struct acpi_table_header *header,
-		       struct acpi_table_desc *table_info);
-
-static acpi_status
-acpi_tb_table_override(struct acpi_table_header *header,
-		       struct acpi_table_desc *table_info);
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_table
- *
- * PARAMETERS:  Address             - Address of table to retrieve.  Can be
- *                                    Logical or Physical
- *              table_info          - Where table info is returned
- *
- * RETURN:      None
- *
- * DESCRIPTION: Get entire table of unknown size.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_get_table(struct acpi_pointer *address,
-		  struct acpi_table_desc *table_info)
-{
-	acpi_status status;
-	struct acpi_table_header header;
-
-	ACPI_FUNCTION_TRACE(tb_get_table);
-
-	/* Get the header in order to get signature and table size */
-
-	status = acpi_tb_get_table_header(address, &header);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Get the entire table */
-
-	status = acpi_tb_get_table_body(address, &header, table_info);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not get ACPI table (size %X)",
-				header.length));
-		return_ACPI_STATUS(status);
-	}
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_table_header
- *
- * PARAMETERS:  Address             - Address of table to retrieve.  Can be
- *                                    Logical or Physical
- *              return_header       - Where the table header is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Get an ACPI table header.  Works in both physical or virtual
- *              addressing mode.  Works with both physical or logical pointers.
- *              Table is either copied or mapped, depending on the pointer
- *              type and mode of the processor.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_get_table_header(struct acpi_pointer *address,
-			 struct acpi_table_header *return_header)
-{
-	acpi_status status = AE_OK;
-	struct acpi_table_header *header = NULL;
-
-	ACPI_FUNCTION_TRACE(tb_get_table_header);
-
-	/*
-	 * Flags contains the current processor mode (Virtual or Physical
-	 * addressing) The pointer_type is either Logical or Physical
-	 */
-	switch (address->pointer_type) {
-	case ACPI_PHYSMODE_PHYSPTR:
-	case ACPI_LOGMODE_LOGPTR:
-
-		/* Pointer matches processor mode, copy the header */
-
-		ACPI_MEMCPY(return_header, address->pointer.logical,
-			    sizeof(struct acpi_table_header));
-		break;
-
-	case ACPI_LOGMODE_PHYSPTR:
-
-		/* Create a logical address for the physical pointer */
-
-		status = acpi_os_map_memory(address->pointer.physical,
-					    sizeof(struct acpi_table_header),
-					    (void *)&header);
-		if (ACPI_FAILURE(status)) {
-			ACPI_ERROR((AE_INFO,
-				    "Could not map memory at %8.8X%8.8X for table header",
-				    ACPI_FORMAT_UINT64(address->pointer.
-						       physical)));
-			return_ACPI_STATUS(status);
-		}
-
-		/* Copy header and delete mapping */
-
-		ACPI_MEMCPY(return_header, header,
-			    sizeof(struct acpi_table_header));
-		acpi_os_unmap_memory(header, sizeof(struct acpi_table_header));
-		break;
-
-	default:
-
-		ACPI_ERROR((AE_INFO, "Invalid address flags %X",
-			    address->pointer_type));
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Table Signature: [%4.4s]\n",
-			  return_header->signature));
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_table_body
- *
- * PARAMETERS:  Address             - Address of table to retrieve.  Can be
- *                                    Logical or Physical
- *              Header              - Header of the table to retrieve
- *              table_info          - Where the table info is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Get an entire ACPI table with support to allow the host OS to
- *              replace the table with a newer version (table override.)
- *              Works in both physical or virtual
- *              addressing mode.  Works with both physical or logical pointers.
- *              Table is either copied or mapped, depending on the pointer
- *              type and mode of the processor.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_get_table_body(struct acpi_pointer *address,
-		       struct acpi_table_header *header,
-		       struct acpi_table_desc *table_info)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(tb_get_table_body);
-
-	if (!table_info || !address) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/* Attempt table override. */
-
-	status = acpi_tb_table_override(header, table_info);
-	if (ACPI_SUCCESS(status)) {
-
-		/* Table was overridden by the host OS */
-
-		return_ACPI_STATUS(status);
-	}
-
-	/* No override, get the original table */
-
-	status = acpi_tb_get_this_table(address, header, table_info);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_table_override
- *
- * PARAMETERS:  Header              - Pointer to table header
- *              table_info          - Return info if table is overridden
- *
- * RETURN:      None
- *
- * DESCRIPTION: Attempts override of current table with a new one if provided
- *              by the host OS.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_tb_table_override(struct acpi_table_header *header,
-		       struct acpi_table_desc *table_info)
-{
-	struct acpi_table_header *new_table;
-	acpi_status status;
-	struct acpi_pointer address;
-
-	ACPI_FUNCTION_TRACE(tb_table_override);
-
-	/*
-	 * The OSL will examine the header and decide whether to override this
-	 * table.  If it decides to override, a table will be returned in new_table,
-	 * which we will then copy.
-	 */
-	status = acpi_os_table_override(header, &new_table);
-	if (ACPI_FAILURE(status)) {
-
-		/* Some severe error from the OSL, but we basically ignore it */
-
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not override ACPI table"));
-		return_ACPI_STATUS(status);
-	}
-
-	if (!new_table) {
-
-		/* No table override */
-
-		return_ACPI_STATUS(AE_NO_ACPI_TABLES);
-	}
-
-	/*
-	 * We have a new table to override the old one.  Get a copy of
-	 * the new one.  We know that the new table has a logical pointer.
-	 */
-	address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING;
-	address.pointer.logical = new_table;
-
-	status = acpi_tb_get_this_table(&address, new_table, table_info);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Could not copy ACPI table"));
-		return_ACPI_STATUS(status);
-	}
-
-	/* Copy the table info */
-
-	ACPI_INFO((AE_INFO, "Table [%4.4s] replaced by host OS",
-		   table_info->pointer->signature));
-
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_this_table
- *
- * PARAMETERS:  Address             - Address of table to retrieve.  Can be
- *                                    Logical or Physical
- *              Header              - Header of the table to retrieve
- *              table_info          - Where the table info is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Get an entire ACPI table.  Works in both physical or virtual
- *              addressing mode.  Works with both physical or logical pointers.
- *              Table is either copied or mapped, depending on the pointer
- *              type and mode of the processor.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_tb_get_this_table(struct acpi_pointer *address,
-		       struct acpi_table_header *header,
-		       struct acpi_table_desc *table_info)
-{
-	struct acpi_table_header *full_table = NULL;
-	u8 allocation;
-	acpi_status status = AE_OK;
-
-	ACPI_FUNCTION_TRACE(tb_get_this_table);
-
-	/* Validate minimum length */
-
-	if (header->length < sizeof(struct acpi_table_header)) {
-		ACPI_ERROR((AE_INFO,
-			    "Table length (%X) is smaller than minimum (%zX)",
-			    header->length, sizeof(struct acpi_table_header)));
-
-		return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
-	}
-
-	/*
-	 * Flags contains the current processor mode (Virtual or Physical
-	 * addressing) The pointer_type is either Logical or Physical
-	 */
-	switch (address->pointer_type) {
-	case ACPI_PHYSMODE_PHYSPTR:
-	case ACPI_LOGMODE_LOGPTR:
-
-		/* Pointer matches processor mode, copy the table to a new buffer */
-
-		full_table = ACPI_ALLOCATE(header->length);
-		if (!full_table) {
-			ACPI_ERROR((AE_INFO,
-				    "Could not allocate table memory for [%4.4s] length %X",
-				    header->signature, header->length));
-			return_ACPI_STATUS(AE_NO_MEMORY);
-		}
-
-		/* Copy the entire table (including header) to the local buffer */
-
-		ACPI_MEMCPY(full_table, address->pointer.logical,
-			    header->length);
-
-		/* Save allocation type */
-
-		allocation = ACPI_MEM_ALLOCATED;
-		break;
-
-	case ACPI_LOGMODE_PHYSPTR:
-
-		/*
-		 * Just map the table's physical memory
-		 * into our address space.
-		 */
-		status = acpi_os_map_memory(address->pointer.physical,
-					    (acpi_size) header->length,
-					    ACPI_CAST_PTR(void, &full_table));
-		if (ACPI_FAILURE(status)) {
-			ACPI_ERROR((AE_INFO,
-				    "Could not map memory for table [%4.4s] at %8.8X%8.8X for length %X",
-				    header->signature,
-				    ACPI_FORMAT_UINT64(address->pointer.
-						       physical),
-				    header->length));
-			return (status);
-		}
-
-		/* Save allocation type */
-
-		allocation = ACPI_MEM_MAPPED;
-		break;
-
-	default:
-
-		ACPI_ERROR((AE_INFO, "Invalid address flags %X",
-			    address->pointer_type));
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/*
-	 * Validate checksum for _most_ tables,
-	 * even the ones whose signature we don't recognize
-	 */
-	if (table_info->type != ACPI_TABLE_ID_FACS) {
-		status = acpi_tb_verify_table_checksum(full_table);
-
-#if (!ACPI_CHECKSUM_ABORT)
-		if (ACPI_FAILURE(status)) {
-
-			/* Ignore the error if configuration says so */
-
-			status = AE_OK;
-		}
-#endif
-	}
-
-	/* Return values */
-
-	table_info->pointer = full_table;
-	table_info->length = (acpi_size) header->length;
-	table_info->allocation = allocation;
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Found table [%4.4s] at %8.8X%8.8X, mapped/copied to %p\n",
-			  full_table->signature,
-			  ACPI_FORMAT_UINT64(address->pointer.physical),
-			  full_table));
-
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_table_ptr
- *
- * PARAMETERS:  table_type      - one of the defined table types
- *              Instance        - Which table of this type
- *              return_table    - pointer to location to place the pointer for
- *                                return
- *
- * RETURN:      Status
- *
- * DESCRIPTION: This function is called to get the pointer to an ACPI table.
- *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_get_table_ptr(acpi_table_type table_type,
-		      u32 instance, struct acpi_table_header **return_table)
-{
-	struct acpi_table_desc *table_desc;
-	u32 i;
-
-	ACPI_FUNCTION_TRACE(tb_get_table_ptr);
-
-	if (table_type > ACPI_TABLE_ID_MAX) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/* Check for instance out of range of the current table count */
-
-	if (instance > acpi_gbl_table_lists[table_type].count) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
-	}
-
-	/*
-	 * Walk the list to get the desired table
-	 * Note: Instance is one-based
-	 */
-	table_desc = acpi_gbl_table_lists[table_type].next;
-	for (i = 1; i < instance; i++) {
-		table_desc = table_desc->next;
-	}
-
-	/* We are now pointing to the requested table's descriptor */
-
-	*return_table = table_desc->pointer;
-	return_ACPI_STATUS(AE_OK);
-}
diff --git a/drivers/acpi/tables/tbgetall.c b/drivers/acpi/tables/tbgetall.c
deleted file mode 100644
index ad982112e4c..00000000000
--- a/drivers/acpi/tables/tbgetall.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/******************************************************************************
- *
- * Module Name: tbgetall - Get all required ACPI tables
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2006, R. Byron Moore
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT          ACPI_TABLES
-ACPI_MODULE_NAME("tbgetall")
-
-/* Local prototypes */
-static acpi_status
-acpi_tb_get_primary_table(struct acpi_pointer *address,
-			  struct acpi_table_desc *table_info);
-
-static acpi_status
-acpi_tb_get_secondary_table(struct acpi_pointer *address,
-			    acpi_string signature,
-			    struct acpi_table_desc *table_info);
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_primary_table
- *
- * PARAMETERS:  Address             - Physical address of table to retrieve
- *              *table_info         - Where the table info is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Maps the physical address of table into a logical address
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_tb_get_primary_table(struct acpi_pointer *address,
-			  struct acpi_table_desc *table_info)
-{
-	acpi_status status;
-	struct acpi_table_header header;
-
-	ACPI_FUNCTION_TRACE(tb_get_primary_table);
-
-	/* Ignore a NULL address in the RSDT */
-
-	if (!address->pointer.value) {
-		return_ACPI_STATUS(AE_OK);
-	}
-
-	/* Get the header in order to get signature and table size */
-
-	status = acpi_tb_get_table_header(address, &header);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Clear the table_info */
-
-	ACPI_MEMSET(table_info, 0, sizeof(struct acpi_table_desc));
-
-	/*
-	 * Check the table signature and make sure it is recognized.
-	 * Also checks the header checksum
-	 */
-	table_info->pointer = &header;
-	status = acpi_tb_recognize_table(table_info, ACPI_TABLE_PRIMARY);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Get the entire table */
-
-	status = acpi_tb_get_table_body(address, &header, table_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Install the table */
-
-	status = acpi_tb_install_table(table_info);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_secondary_table
- *
- * PARAMETERS:  Address             - Physical address of table to retrieve
- *              *table_info         - Where the table info is returned
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Maps the physical address of table into a logical address
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_tb_get_secondary_table(struct acpi_pointer *address,
-			    acpi_string signature,
-			    struct acpi_table_desc *table_info)
-{
-	acpi_status status;
-	struct acpi_table_header header;
-
-	ACPI_FUNCTION_TRACE_STR(tb_get_secondary_table, signature);
-
-	/* Get the header in order to match the signature */
-
-	status = acpi_tb_get_table_header(address, &header);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Signature must match request */
-
-	if (!ACPI_COMPARE_NAME(header.signature, signature)) {
-		ACPI_ERROR((AE_INFO,
-			    "Incorrect table signature - wanted [%s] found [%4.4s]",
-			    signature, header.signature));
-		return_ACPI_STATUS(AE_BAD_SIGNATURE);
-	}
-
-	/*
-	 * Check the table signature and make sure it is recognized.
-	 * Also checks the header checksum
-	 */
-	table_info->pointer = &header;
-	status = acpi_tb_recognize_table(table_info, ACPI_TABLE_SECONDARY);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Get the entire table */
-
-	status = acpi_tb_get_table_body(address, &header, table_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Install the table */
-
-	status = acpi_tb_install_table(table_info);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_required_tables
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load and validate tables other than the RSDT.  The RSDT must
- *              already be loaded and validated.
- *
- *              Get the minimum set of ACPI tables, namely:
- *
- *              1) FADT (via RSDT in loop below)
- *              2) FACS (via FADT)
- *              3) DSDT (via FADT)
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_get_required_tables(void)
-{
-	acpi_status status = AE_OK;
-	u32 i;
-	struct acpi_table_desc table_info;
-	struct acpi_pointer address;
-
-	ACPI_FUNCTION_TRACE(tb_get_required_tables);
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%d ACPI tables in RSDT\n",
-			  acpi_gbl_rsdt_table_count));
-
-	address.pointer_type = acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING;
-
-	/*
-	 * Loop through all table pointers found in RSDT.
-	 * This will NOT include the FACS and DSDT - we must get
-	 * them after the loop.
-	 *
-	 * The only tables we are interested in getting here is the FADT and
-	 * any SSDTs.
-	 */
-	for (i = 0; i < acpi_gbl_rsdt_table_count; i++) {
-
-		/* Get the table address from the common internal XSDT */
-
-		address.pointer.value = acpi_gbl_XSDT->table_offset_entry[i];
-
-		/*
-		 * Get the tables needed by this subsystem (FADT and any SSDTs).
-		 * NOTE: All other tables are completely ignored at this time.
-		 */
-		status = acpi_tb_get_primary_table(&address, &table_info);
-		if ((status != AE_OK) && (status != AE_TABLE_NOT_SUPPORTED)) {
-			ACPI_WARNING((AE_INFO,
-				      "%s, while getting table at %8.8X%8.8X",
-				      acpi_format_exception(status),
-				      ACPI_FORMAT_UINT64(address.pointer.
-							 value)));
-		}
-	}
-
-	/* We must have a FADT to continue */
-
-	if (!acpi_gbl_FADT) {
-		ACPI_ERROR((AE_INFO, "No FADT present in RSDT/XSDT"));
-		return_ACPI_STATUS(AE_NO_ACPI_TABLES);
-	}
-
-	/*
-	 * Convert the FADT to a common format.  This allows earlier revisions of
-	 * the table to coexist with newer versions, using common access code.
-	 */
-	status = acpi_tb_convert_table_fadt();
-	if (ACPI_FAILURE(status)) {
-		ACPI_ERROR((AE_INFO,
-			    "Could not convert FADT to internal common format"));
-		return_ACPI_STATUS(status);
-	}
-
-	/* Get the FACS (Pointed to by the FADT) */
-
-	address.pointer.value = acpi_gbl_FADT->xfirmware_ctrl;
-
-	status = acpi_tb_get_secondary_table(&address, FACS_SIG, &table_info);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not get/install the FACS"));
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * Create the common FACS pointer table
-	 * (Contains pointers to the original table)
-	 */
-	status = acpi_tb_build_common_facs(&table_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Get/install the DSDT (Pointed to by the FADT) */
-
-	address.pointer.value = acpi_gbl_FADT->Xdsdt;
-
-	status = acpi_tb_get_secondary_table(&address, DSDT_SIG, &table_info);
-	if (ACPI_FAILURE(status)) {
-		ACPI_ERROR((AE_INFO, "Could not get/install the DSDT"));
-		return_ACPI_STATUS(status);
-	}
-
-	/* Set Integer Width (32/64) based upon DSDT revision */
-
-	acpi_ut_set_integer_width(acpi_gbl_DSDT->revision);
-
-	/* Dump the entire DSDT */
-
-	ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
-			  "Hex dump of entire DSDT, size %d (0x%X), Integer width = %d\n",
-			  acpi_gbl_DSDT->length, acpi_gbl_DSDT->length,
-			  acpi_gbl_integer_bit_width));
-
-	ACPI_DUMP_BUFFER(ACPI_CAST_PTR(u8, acpi_gbl_DSDT),
-			 acpi_gbl_DSDT->length);
-
-	/* Always delete the RSDP mapping, we are done with it */
-
-	acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_RSDP);
-	return_ACPI_STATUS(status);
-}
diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c
index 1668a232fb6..0e7b121a99c 100644
--- a/drivers/acpi/tables/tbinstal.c
+++ b/drivers/acpi/tables/tbinstal.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2006, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -42,510 +42,498 @@
  */
 
 #include <acpi/acpi.h>
+#include <acpi/acnamesp.h>
 #include <acpi/actables.h>
 
 #define _COMPONENT          ACPI_TABLES
 ACPI_MODULE_NAME("tbinstal")
 
-/* Local prototypes */
-static acpi_status
-acpi_tb_match_signature(char *signature,
-			struct acpi_table_desc *table_info, u8 search_type);
-
-/*******************************************************************************
+/******************************************************************************
  *
- * FUNCTION:    acpi_tb_match_signature
+ * FUNCTION:    acpi_tb_verify_table
  *
- * PARAMETERS:  Signature           - Table signature to match
- *              table_info          - Return data
- *              search_type         - Table type to match (primary/secondary)
+ * PARAMETERS:  table_desc          - table
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Compare signature against the list of "ACPI-subsystem-owned"
- *              tables (DSDT/FADT/SSDT, etc.) Returns the table_type_iD on match.
+ * DESCRIPTION: this function is called to verify and map table
  *
- ******************************************************************************/
-
-static acpi_status
-acpi_tb_match_signature(char *signature,
-			struct acpi_table_desc *table_info, u8 search_type)
+ *****************************************************************************/
+acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc)
 {
-	acpi_native_uint i;
+	acpi_status status = AE_OK;
 
-	ACPI_FUNCTION_TRACE(tb_match_signature);
+	ACPI_FUNCTION_TRACE(tb_verify_table);
 
-	/* Search for a signature match among the known table types */
+	/* Map the table if necessary */
 
-	for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) {
-		if (!(acpi_gbl_table_data[i].flags & search_type)) {
-			continue;
+	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);
+		}
+	}
 
-		if (!ACPI_STRNCMP(signature, acpi_gbl_table_data[i].signature,
-				  acpi_gbl_table_data[i].sig_length)) {
-
-			/* Found a signature match, return index if requested */
+	/* FACS is the odd table, has no standard ACPI header and no checksum */
 
-			if (table_info) {
-				table_info->type = (u8) i;
-			}
+	if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) {
 
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-					  "Table [%4.4s] is an ACPI table consumed by the core subsystem\n",
-					  (char *)acpi_gbl_table_data[i].
-					  signature));
+		/* Always calculate checksum, ignore bad checksum if requested */
 
-			return_ACPI_STATUS(AE_OK);
-		}
+		status =
+		    acpi_tb_verify_checksum(table_desc->pointer,
+					    table_desc->length);
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "Table [%4.4s] is not an ACPI table consumed by the core subsystem - ignored\n",
-			  (char *)signature));
-
-	return_ACPI_STATUS(AE_TABLE_NOT_SUPPORTED);
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_install_table
+ * FUNCTION:    acpi_tb_add_table
  *
- * PARAMETERS:  table_info          - Return value from acpi_tb_get_table_body
+ * PARAMETERS:  table_desc          - Table descriptor
+ *              table_index         - Where the table index is returned
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Install the table into the global data structures.
+ * DESCRIPTION: This function is called to add the ACPI table
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_install_table(struct acpi_table_desc *table_info)
+acpi_status
+acpi_tb_add_table(struct acpi_table_desc *table_desc,
+		  acpi_native_uint * table_index)
 {
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(tb_install_table);
+	acpi_native_uint i;
+	acpi_native_uint length;
+	acpi_status status = AE_OK;
 
-	/* Lock tables while installing */
+	ACPI_FUNCTION_TRACE(tb_add_table);
 
-	status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not acquire table mutex"));
-		return_ACPI_STATUS(status);
+	if (!table_desc->pointer) {
+		status = acpi_tb_verify_table(table_desc);
+		if (ACPI_FAILURE(status) || !table_desc->pointer) {
+			return_ACPI_STATUS(status);
+		}
 	}
 
-	/*
-	 * Ignore a table that is already installed. For example, some BIOS
-	 * ASL code will repeatedly attempt to load the same SSDT.
-	 */
-	status = acpi_tb_is_table_installed(table_info);
-	if (ACPI_FAILURE(status)) {
-		goto unlock_and_exit;
+	/* The table must be either an SSDT or a PSDT */
+
+	if ((!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT))
+	    &&
+	    (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT)))
+	{
+		ACPI_ERROR((AE_INFO,
+			    "Table has invalid signature [%4.4s], must be SSDT or PSDT",
+			    table_desc->pointer->signature));
+		return_ACPI_STATUS(AE_BAD_SIGNATURE);
 	}
 
-	/* Install the table into the global data structure */
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+	/* Check if table is already registered */
+
+	for (i = 0; i < acpi_gbl_root_table_list.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;
+			}
+		}
+
+		length = ACPI_MIN(table_desc->length,
+				  acpi_gbl_root_table_list.tables[i].length);
+		if (ACPI_MEMCMP(table_desc->pointer,
+				acpi_gbl_root_table_list.tables[i].pointer,
+				length)) {
+			continue;
+		}
+
+		/* Table is already registered */
+
+		acpi_tb_delete_table(table_desc);
+		*table_index = i;
+		goto release;
+	}
 
-	status = acpi_tb_init_table_descriptor(table_info->type, table_info);
+	/*
+	 * Add the table to the global 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)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not install table [%4.4s]",
-				table_info->pointer->signature));
+		goto release;
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s located at %p\n",
-			  acpi_gbl_table_data[table_info->type].name,
-			  table_info->pointer));
+	acpi_tb_print_table_header(table_desc->address, table_desc->pointer);
 
-      unlock_and_exit:
+      release:
 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_recognize_table
+ * FUNCTION:    acpi_tb_resize_root_table_list
  *
- * PARAMETERS:  table_info          - Return value from acpi_tb_get_table_body
- *              search_type         - Table type to match (primary/secondary)
+ * PARAMETERS:  None
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Check a table signature for a match against known table types
- *
- * NOTE:  All table pointers are validated as follows:
- *          1) Table pointer must point to valid physical memory
- *          2) Signature must be 4 ASCII chars, even if we don't recognize the
- *             name
- *          3) Table must be readable for length specified in the header
- *          4) Table checksum must be valid (with the exception of the FACS
- *             which has no checksum for some odd reason)
+ * DESCRIPTION: Expand the size of global table array
  *
  ******************************************************************************/
 
-acpi_status
-acpi_tb_recognize_table(struct acpi_table_desc *table_info, u8 search_type)
+acpi_status acpi_tb_resize_root_table_list(void)
 {
-	struct acpi_table_header *table_header;
-	acpi_status status;
+	struct acpi_table_desc *tables;
 
-	ACPI_FUNCTION_TRACE(tb_recognize_table);
+	ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
 
-	/* Ensure that we have a valid table pointer */
+	/* allow_resize flag is a parameter to acpi_initialize_tables */
 
-	table_header = (struct acpi_table_header *)table_info->pointer;
-	if (!table_header) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	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);
 	}
 
-	/*
-	 * We only "recognize" a limited number of ACPI tables -- namely, the
-	 * ones that are used by the subsystem (DSDT, FADT, etc.)
-	 *
-	 * An AE_TABLE_NOT_SUPPORTED means that the table was not recognized.
-	 * This can be any one of many valid ACPI tables, it just isn't one of
-	 * the tables that is consumed by the core subsystem
-	 */
-	status = acpi_tb_match_signature(table_header->signature,
-					 table_info, search_type);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+	/* Increase the Table Array size */
+
+	tables = ACPI_ALLOCATE_ZEROED((acpi_gbl_root_table_list.size +
+				       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);
 	}
 
-	status = acpi_tb_validate_table_header(table_header);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+	/* Copy and free the previous table array */
+
+	if (acpi_gbl_root_table_list.tables) {
+		ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
+			    acpi_gbl_root_table_list.size *
+			    sizeof(struct acpi_table_desc));
+
+		if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+			ACPI_FREE(acpi_gbl_root_table_list.tables);
+		}
 	}
 
-	/* Return the table type and length via the info struct */
+	acpi_gbl_root_table_list.tables = tables;
+	acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT;
+	acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED;
 
-	table_info->length = (acpi_size) table_header->length;
-	return_ACPI_STATUS(status);
+	return_ACPI_STATUS(AE_OK);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_init_table_descriptor
+ * FUNCTION:    acpi_tb_store_table
  *
- * PARAMETERS:  table_type          - The type of the table
- *              table_info          - A table info struct
+ * PARAMETERS:  Address             - Table address
+ *              Table               - Table header
+ *              Length              - Table length
+ *              Flags               - flags
  *
- * RETURN:      None.
+ * RETURN:      Status and table index.
  *
- * DESCRIPTION: Install a table into the global data structs.
+ * DESCRIPTION: Add an ACPI table to the global table list
  *
  ******************************************************************************/
 
 acpi_status
-acpi_tb_init_table_descriptor(acpi_table_type table_type,
-			      struct acpi_table_desc *table_info)
+acpi_tb_store_table(acpi_physical_address address,
+		    struct acpi_table_header *table,
+		    u32 length, u8 flags, acpi_native_uint * table_index)
 {
-	struct acpi_table_list *list_head;
-	struct acpi_table_desc *table_desc;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE_U32(tb_init_table_descriptor, table_type);
+	acpi_status status = AE_OK;
 
-	/* Allocate a descriptor for this table */
+	/* Ensure that there is room for the table in the Root Table List */
 
-	table_desc = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_table_desc));
-	if (!table_desc) {
-		return_ACPI_STATUS(AE_NO_MEMORY);
+	if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) {
+		status = acpi_tb_resize_root_table_list();
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
 	}
 
-	/* Get a new owner ID for the table */
+	/* Initialize added table */
+
+	acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+	    address = address;
+	acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+	    pointer = table;
+	acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length =
+	    length;
+	acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+	    owner_id = 0;
+	acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags =
+	    flags;
+
+	ACPI_MOVE_32_TO_32(&
+			   (acpi_gbl_root_table_list.
+			    tables[acpi_gbl_root_table_list.count].signature),
+			   table->signature);
+
+	*table_index = acpi_gbl_root_table_list.count;
+	acpi_gbl_root_table_list.count++;
+	return (status);
+}
 
-	status = acpi_ut_allocate_owner_id(&table_desc->owner_id);
-	if (ACPI_FAILURE(status)) {
-		goto error_exit1;
-	}
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_delete_table
+ *
+ * PARAMETERS:  table_index         - Table index
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete one internal ACPI table
+ *
+ ******************************************************************************/
 
-	/* Install the table into the global data structure */
+void acpi_tb_delete_table(struct acpi_table_desc *table_desc)
+{
+	/* Table must be mapped or allocated */
+	if (!table_desc->pointer) {
+		return;
+	}
+	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;
+	default:;
+	}
 
-	list_head = &acpi_gbl_table_lists[table_type];
+	table_desc->pointer = NULL;
+}
 
-	/*
-	 * Two major types of tables:  1) Only one instance is allowed.  This
-	 * includes most ACPI tables such as the DSDT.  2) Multiple instances of
-	 * the table are allowed.  This includes SSDT and PSDTs.
-	 */
-	if (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags)) {
-		/*
-		 * Only one table allowed, and a table has alread been installed
-		 * at this location, so return an error.
-		 */
-		if (list_head->next) {
-			status = AE_ALREADY_EXISTS;
-			goto error_exit2;
-		}
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_terminate
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Delete all internal ACPI tables
+ *
+ ******************************************************************************/
 
-		table_desc->next = list_head->next;
-		list_head->next = table_desc;
+void acpi_tb_terminate(void)
+{
+	acpi_native_uint i;
 
-		if (table_desc->next) {
-			table_desc->next->prev = table_desc;
-		}
+	ACPI_FUNCTION_TRACE(tb_terminate);
 
-		list_head->count++;
-	} else {
-		/*
-		 * Link the new table in to the list of tables of this type.
-		 * Insert at the end of the list, order IS IMPORTANT.
-		 *
-		 * table_desc->Prev & Next are already NULL from calloc()
-		 */
-		list_head->count++;
-
-		if (!list_head->next) {
-			list_head->next = table_desc;
-		} else {
-			table_desc->next = list_head->next;
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
 
-			while (table_desc->next->next) {
-				table_desc->next = table_desc->next->next;
-			}
+	/* Delete the individual tables */
 
-			table_desc->next->next = table_desc;
-			table_desc->prev = table_desc->next;
-			table_desc->next = NULL;
-		}
+	for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+		acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]);
 	}
 
-	/* Finish initialization of the table descriptor */
-
-	table_desc->loaded_into_namespace = FALSE;
-	table_desc->type = (u8) table_type;
-	table_desc->pointer = table_info->pointer;
-	table_desc->length = table_info->length;
-	table_desc->allocation = table_info->allocation;
-	table_desc->aml_start = (u8 *) (table_desc->pointer + 1),
-	    table_desc->aml_length = (u32)
-	    (table_desc->length - (u32) sizeof(struct acpi_table_header));
-
 	/*
-	 * Set the appropriate global pointer (if there is one) to point to the
-	 * newly installed table
+	 * 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_table_data[table_type].global_ptr) {
-		*(acpi_gbl_table_data[table_type].global_ptr) =
-		    table_info->pointer;
+	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+		ACPI_FREE(acpi_gbl_root_table_list.tables);
 	}
 
-	/* Return Data */
-
-	table_info->owner_id = table_desc->owner_id;
-	table_info->installed_desc = table_desc;
-	return_ACPI_STATUS(AE_OK);
-
-	/* Error exit with cleanup */
-
-      error_exit2:
-
-	acpi_ut_release_owner_id(&table_desc->owner_id);
+	acpi_gbl_root_table_list.tables = NULL;
+	acpi_gbl_root_table_list.flags = 0;
+	acpi_gbl_root_table_list.count = 0;
 
-      error_exit1:
-
-	ACPI_FREE(table_desc);
-	return_ACPI_STATUS(status);
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n"));
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_delete_all_tables
+ * FUNCTION:    acpi_tb_delete_namespace_by_owner
  *
- * PARAMETERS:  None.
+ * PARAMETERS:  table_index         - Table index
  *
- * RETURN:      None.
+ * RETURN:      None
  *
- * DESCRIPTION: Delete all internal ACPI tables
+ * DESCRIPTION: Delete all namespace objects created when this table was loaded.
  *
  ******************************************************************************/
 
-void acpi_tb_delete_all_tables(void)
+void acpi_tb_delete_namespace_by_owner(acpi_native_uint table_index)
 {
-	acpi_table_type type;
+	acpi_owner_id owner_id;
 
-	/*
-	 * Free memory allocated for ACPI tables
-	 * Memory can either be mapped or allocated
-	 */
-	for (type = 0; type < (ACPI_TABLE_ID_MAX + 1); type++) {
-		acpi_tb_delete_tables_by_type(type);
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.count) {
+		owner_id =
+		    acpi_gbl_root_table_list.tables[table_index].owner_id;
+	} else {
+		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+		return;
 	}
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	acpi_ns_delete_namespace_by_owner(owner_id);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_delete_tables_by_type
+ * FUNCTION:    acpi_tb_allocate_owner_id
  *
- * PARAMETERS:  Type                - The table type to be deleted
+ * PARAMETERS:  table_index         - Table index
  *
- * RETURN:      None.
+ * RETURN:      Status
  *
- * DESCRIPTION: Delete an internal ACPI table
- *              Locks the ACPI table mutex
+ * DESCRIPTION: Allocates owner_id in table_desc
  *
  ******************************************************************************/
 
-void acpi_tb_delete_tables_by_type(acpi_table_type type)
+acpi_status acpi_tb_allocate_owner_id(acpi_native_uint table_index)
 {
-	struct acpi_table_desc *table_desc;
-	u32 count;
-	u32 i;
+	acpi_status status = AE_BAD_PARAMETER;
 
-	ACPI_FUNCTION_TRACE_U32(tb_delete_tables_by_type, type);
+	ACPI_FUNCTION_TRACE(tb_allocate_owner_id);
 
-	if (type > ACPI_TABLE_ID_MAX) {
-		return_VOID;
-	}
-
-	if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_TABLES))) {
-		return;
-	}
-
-	/* Clear the appropriate "typed" global table pointer */
-
-	switch (type) {
-	case ACPI_TABLE_ID_RSDP:
-		acpi_gbl_RSDP = NULL;
-		break;
-
-	case ACPI_TABLE_ID_DSDT:
-		acpi_gbl_DSDT = NULL;
-		break;
-
-	case ACPI_TABLE_ID_FADT:
-		acpi_gbl_FADT = NULL;
-		break;
-
-	case ACPI_TABLE_ID_FACS:
-		acpi_gbl_FACS = NULL;
-		break;
-
-	case ACPI_TABLE_ID_XSDT:
-		acpi_gbl_XSDT = NULL;
-		break;
-
-	case ACPI_TABLE_ID_SSDT:
-	case ACPI_TABLE_ID_PSDT:
-	default:
-		break;
-	}
-
-	/*
-	 * Free the table
-	 * 1) Get the head of the list
-	 */
-	table_desc = acpi_gbl_table_lists[type].next;
-	count = acpi_gbl_table_lists[type].count;
-
-	/*
-	 * 2) Walk the entire list, deleting both the allocated tables
-	 *    and the table descriptors
-	 */
-	for (i = 0; i < count; i++) {
-		table_desc = acpi_tb_uninstall_table(table_desc);
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.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_VOID;
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_delete_single_table
+ * FUNCTION:    acpi_tb_release_owner_id
  *
- * PARAMETERS:  table_info          - A table info struct
+ * PARAMETERS:  table_index         - Table index
  *
- * RETURN:      None.
+ * RETURN:      Status
  *
- * DESCRIPTION: Low-level free for a single ACPI table.  Handles cases where
- *              the table was allocated a buffer or was mapped.
+ * DESCRIPTION: Releases owner_id in table_desc
  *
  ******************************************************************************/
 
-void acpi_tb_delete_single_table(struct acpi_table_desc *table_desc)
+acpi_status acpi_tb_release_owner_id(acpi_native_uint table_index)
 {
+	acpi_status status = AE_BAD_PARAMETER;
 
-	/* Must have a valid table descriptor and pointer */
+	ACPI_FUNCTION_TRACE(tb_release_owner_id);
 
-	if ((!table_desc) || (!table_desc->pointer)) {
-		return;
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.count) {
+		acpi_ut_release_owner_id(&
+					 (acpi_gbl_root_table_list.
+					  tables[table_index].owner_id));
+		status = AE_OK;
 	}
 
-	/* Valid table, determine type of memory allocation */
-
-	switch (table_desc->allocation) {
-	case ACPI_MEM_NOT_ALLOCATED:
-		break;
-
-	case ACPI_MEM_ALLOCATED:
-
-		ACPI_FREE(table_desc->pointer);
-		break;
-
-	case ACPI_MEM_MAPPED:
-
-		acpi_os_unmap_memory(table_desc->pointer, table_desc->length);
-		break;
-
-	default:
-		break;
-	}
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_uninstall_table
+ * FUNCTION:    acpi_tb_get_owner_id
  *
- * PARAMETERS:  table_info          - A table info struct
+ * PARAMETERS:  table_index         - Table index
+ *              owner_id            - Where the table owner_id is returned
  *
- * RETURN:      Pointer to the next table in the list (of same type)
+ * RETURN:      Status
  *
- * DESCRIPTION: Free the memory associated with an internal ACPI table that
- *              is either installed or has never been installed.
- *              Table mutex should be locked.
+ * DESCRIPTION: returns owner_id for the ACPI table
  *
  ******************************************************************************/
 
-struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc
-						*table_desc)
+acpi_status
+acpi_tb_get_owner_id(acpi_native_uint table_index, acpi_owner_id * owner_id)
 {
-	struct acpi_table_desc *next_desc;
+	acpi_status status = AE_BAD_PARAMETER;
 
-	ACPI_FUNCTION_TRACE_PTR(tb_uninstall_table, table_desc);
+	ACPI_FUNCTION_TRACE(tb_get_owner_id);
 
-	if (!table_desc) {
-		return_PTR(NULL);
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.count) {
+		*owner_id =
+		    acpi_gbl_root_table_list.tables[table_index].owner_id;
+		status = AE_OK;
 	}
 
-	/* Unlink the descriptor from the doubly linked list */
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(status);
+}
 
-	if (table_desc->prev) {
-		table_desc->prev->next = table_desc->next;
-	} else {
-		/* Is first on list, update list head */
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_is_table_loaded
+ *
+ * PARAMETERS:  table_index         - Table index
+ *
+ * RETURN:      Table Loaded Flag
+ *
+ ******************************************************************************/
 
-		acpi_gbl_table_lists[table_desc->type].next = table_desc->next;
-	}
+u8 acpi_tb_is_table_loaded(acpi_native_uint table_index)
+{
+	u8 is_loaded = FALSE;
 
-	if (table_desc->next) {
-		table_desc->next->prev = table_desc->prev;
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.count) {
+		is_loaded = (u8)
+		    (acpi_gbl_root_table_list.tables[table_index].
+		     flags & ACPI_TABLE_IS_LOADED);
 	}
 
-	/* Free the memory allocated for the table itself */
-
-	acpi_tb_delete_single_table(table_desc);
-
-	/* Free the owner ID associated with this table */
-
-	acpi_ut_release_owner_id(&table_desc->owner_id);
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return (is_loaded);
+}
 
-	/* Free the table descriptor */
+/*******************************************************************************
+ *
+ * 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.
+ *
+ ******************************************************************************/
 
-	next_desc = table_desc->next;
-	ACPI_FREE(table_desc);
+void acpi_tb_set_table_loaded_flag(acpi_native_uint table_index, u8 is_loaded)
+{
 
-	/* Return pointer to the next descriptor */
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	if (table_index < acpi_gbl_root_table_list.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;
+		}
+	}
 
-	return_PTR(next_desc);
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 }
diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c
deleted file mode 100644
index 86a5fca9b73..00000000000
--- a/drivers/acpi/tables/tbrsdt.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/******************************************************************************
- *
- * Module Name: tbrsdt - ACPI RSDT table utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2006, R. Byron Moore
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions, and the following disclaimer,
- *    without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- *    substantially similar to the "NO WARRANTY" disclaimer below
- *    ("Disclaimer") and any redistribution must be conditioned upon
- *    including a substantially similar Disclaimer requirement for further
- *    binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- *    of any contributors may be used to endorse or promote products derived
- *    from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT          ACPI_TABLES
-ACPI_MODULE_NAME("tbrsdt")
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_verify_rsdp
- *
- * PARAMETERS:  Address         - RSDP (Pointer to RSDT)
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table)
- *
- ******************************************************************************/
-acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address)
-{
-	struct acpi_table_desc table_info;
-	acpi_status status;
-	struct rsdp_descriptor *rsdp;
-
-	ACPI_FUNCTION_TRACE(tb_verify_rsdp);
-
-	switch (address->pointer_type) {
-	case ACPI_LOGICAL_POINTER:
-
-		rsdp = address->pointer.logical;
-		break;
-
-	case ACPI_PHYSICAL_POINTER:
-		/*
-		 * Obtain access to the RSDP structure
-		 */
-		status = acpi_os_map_memory(address->pointer.physical,
-					    sizeof(struct rsdp_descriptor),
-					    ACPI_CAST_PTR(void, &rsdp));
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-		break;
-
-	default:
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/* Verify RSDP signature and checksum */
-
-	status = acpi_tb_validate_rsdp(rsdp);
-	if (ACPI_FAILURE(status)) {
-		goto cleanup;
-	}
-
-	/* RSDP is ok. Init the table info */
-
-	table_info.pointer = ACPI_CAST_PTR(struct acpi_table_header, rsdp);
-	table_info.length = sizeof(struct rsdp_descriptor);
-
-	if (address->pointer_type == ACPI_PHYSICAL_POINTER) {
-		table_info.allocation = ACPI_MEM_MAPPED;
-	} else {
-		table_info.allocation = ACPI_MEM_NOT_ALLOCATED;
-	}
-
-	/* Save the table pointers and allocation info */
-
-	status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_RSDP, &table_info);
-	if (ACPI_FAILURE(status)) {
-		goto cleanup;
-	}
-
-	/* Save the RSDP in a global for easy access */
-
-	acpi_gbl_RSDP =
-	    ACPI_CAST_PTR(struct rsdp_descriptor, table_info.pointer);
-	return_ACPI_STATUS(status);
-
-	/* Error exit */
-      cleanup:
-
-	if (acpi_gbl_table_flags & ACPI_PHYSICAL_POINTER) {
-		acpi_os_unmap_memory(rsdp, sizeof(struct rsdp_descriptor));
-	}
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_rsdt_address
- *
- * PARAMETERS:  out_address         - Where the address is returned
- *
- * RETURN:      None, Address
- *
- * DESCRIPTION: Extract the address of either the RSDT or XSDT, depending on the
- *              version of the RSDP and whether the XSDT pointer is valid
- *
- ******************************************************************************/
-
-void acpi_tb_get_rsdt_address(struct acpi_pointer *out_address)
-{
-
-	ACPI_FUNCTION_ENTRY();
-
-	out_address->pointer_type =
-	    acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING;
-
-	/* Use XSDT if it is present */
-
-	if ((acpi_gbl_RSDP->revision >= 2) &&
-	    acpi_gbl_RSDP->xsdt_physical_address) {
-		out_address->pointer.value =
-		    acpi_gbl_RSDP->xsdt_physical_address;
-		acpi_gbl_root_table_type = ACPI_TABLE_TYPE_XSDT;
-	} else {
-		/* No XSDT, use the RSDT */
-
-		out_address->pointer.value =
-		    acpi_gbl_RSDP->rsdt_physical_address;
-		acpi_gbl_root_table_type = ACPI_TABLE_TYPE_RSDT;
-	}
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_validate_rsdt
- *
- * PARAMETERS:  table_ptr       - Addressable pointer to the RSDT.
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Validate signature for the RSDT or XSDT
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr)
-{
-	char *signature;
-
-	ACPI_FUNCTION_ENTRY();
-
-	/* Validate minimum length */
-
-	if (table_ptr->length < sizeof(struct acpi_table_header)) {
-		ACPI_ERROR((AE_INFO,
-			    "RSDT/XSDT length (%X) is smaller than minimum (%zX)",
-			    table_ptr->length,
-			    sizeof(struct acpi_table_header)));
-
-		return (AE_INVALID_TABLE_LENGTH);
-	}
-
-	/* Search for appropriate signature, RSDT or XSDT */
-
-	if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
-		signature = RSDT_SIG;
-	} else {
-		signature = XSDT_SIG;
-	}
-
-	if (!ACPI_COMPARE_NAME(table_ptr->signature, signature)) {
-
-		/* Invalid RSDT or XSDT signature */
-
-		ACPI_ERROR((AE_INFO,
-			    "Invalid signature where RSDP indicates RSDT/XSDT should be located. RSDP:"));
-
-		ACPI_DUMP_BUFFER(acpi_gbl_RSDP, 20);
-
-		ACPI_ERROR((AE_INFO,
-			    "RSDT/XSDT signature at %X is invalid",
-			    acpi_gbl_RSDP->rsdt_physical_address));
-
-		if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
-			ACPI_ERROR((AE_INFO, "Looking for RSDT"));
-		} else {
-			ACPI_ERROR((AE_INFO, "Looking for XSDT"));
-		}
-
-		ACPI_DUMP_BUFFER(ACPI_CAST_PTR(char, table_ptr), 48);
-		return (AE_BAD_SIGNATURE);
-	}
-
-	return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_get_table_rsdt
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table)
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_get_table_rsdt(void)
-{
-	struct acpi_table_desc table_info;
-	acpi_status status;
-	struct acpi_pointer address;
-
-	ACPI_FUNCTION_TRACE(tb_get_table_rsdt);
-
-	/* Get the RSDT/XSDT via the RSDP */
-
-	acpi_tb_get_rsdt_address(&address);
-
-	table_info.type = ACPI_TABLE_ID_XSDT;
-	status = acpi_tb_get_table(&address, &table_info);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not get the RSDT/XSDT"));
-		return_ACPI_STATUS(status);
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "RSDP located at %p, points to RSDT physical=%8.8X%8.8X\n",
-			  acpi_gbl_RSDP,
-			  ACPI_FORMAT_UINT64(address.pointer.value)));
-
-	/* Check the RSDT or XSDT signature */
-
-	status = acpi_tb_validate_rsdt(table_info.pointer);
-	if (ACPI_FAILURE(status)) {
-		goto error_cleanup;
-	}
-
-	/* Get the number of tables defined in the RSDT or XSDT */
-
-	acpi_gbl_rsdt_table_count = acpi_tb_get_table_count(acpi_gbl_RSDP,
-							    table_info.pointer);
-
-	/* Convert and/or copy to an XSDT structure */
-
-	status = acpi_tb_convert_to_xsdt(&table_info);
-	if (ACPI_FAILURE(status)) {
-		goto error_cleanup;
-	}
-
-	/* Save the table pointers and allocation info */
-
-	status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_XSDT, &table_info);
-	if (ACPI_FAILURE(status)) {
-		goto error_cleanup;
-	}
-
-	acpi_gbl_XSDT =
-	    ACPI_CAST_PTR(struct xsdt_descriptor, table_info.pointer);
-
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT));
-	return_ACPI_STATUS(status);
-
-      error_cleanup:
-
-	/* Free table allocated by acpi_tb_get_table */
-
-	acpi_tb_delete_single_table(&table_info);
-
-	return_ACPI_STATUS(status);
-}
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index 209a401801e..1da64b4518c 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -1,11 +1,11 @@
 /******************************************************************************
  *
- * Module Name: tbutils - Table manipulation utilities
+ * Module Name: tbutils   - table utilities
  *
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2006, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -48,137 +48,119 @@
 ACPI_MODULE_NAME("tbutils")
 
 /* Local prototypes */
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-acpi_status
-acpi_tb_handle_to_object(u16 table_id, struct acpi_table_desc **table_desc);
-#endif
+static acpi_physical_address
+acpi_tb_get_root_table_entry(u8 * table_entry,
+			     acpi_native_uint table_entry_size);
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_is_table_installed
- *
- * PARAMETERS:  new_table_desc      - Descriptor for new table being installed
+ * FUNCTION:    acpi_tb_tables_loaded
  *
- * RETURN:      Status - AE_ALREADY_EXISTS if the table is already installed
+ * PARAMETERS:  None
  *
- * DESCRIPTION: Determine if an ACPI table is already installed
+ * RETURN:      TRUE if required ACPI tables are loaded
  *
- * MUTEX:       Table data structures should be locked
+ * DESCRIPTION: Determine if the minimum required ACPI tables are present
+ *              (FADT, FACS, DSDT)
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_is_table_installed(struct acpi_table_desc *new_table_desc)
+u8 acpi_tb_tables_loaded(void)
 {
-	struct acpi_table_desc *table_desc;
-
-	ACPI_FUNCTION_TRACE(tb_is_table_installed);
 
-	/* Get the list descriptor and first table descriptor */
-
-	table_desc = acpi_gbl_table_lists[new_table_desc->type].next;
+	if (acpi_gbl_root_table_list.count >= 3) {
+		return (TRUE);
+	}
 
-	/* Examine all installed tables of this type */
+	return (FALSE);
+}
 
-	while (table_desc) {
-		/*
-		 * If the table lengths match, perform a full bytewise compare. This
-		 * means that we will allow tables with duplicate oem_table_id(s), as
-		 * long as the tables are different in some way.
-		 *
-		 * Checking if the table has been loaded into the namespace means that
-		 * we don't check for duplicate tables during the initial installation
-		 * of tables within the RSDT/XSDT.
-		 */
-		if ((table_desc->loaded_into_namespace) &&
-		    (table_desc->pointer->length ==
-		     new_table_desc->pointer->length)
-		    &&
-		    (!ACPI_MEMCMP
-		     (table_desc->pointer, new_table_desc->pointer,
-		      new_table_desc->pointer->length))) {
-
-			/* Match: this table is already installed */
-
-			ACPI_DEBUG_PRINT((ACPI_DB_TABLES,
-					  "Table [%4.4s] already installed: Rev %X OemTableId [%8.8s]\n",
-					  new_table_desc->pointer->signature,
-					  new_table_desc->pointer->revision,
-					  new_table_desc->pointer->
-					  oem_table_id));
-
-			new_table_desc->owner_id = table_desc->owner_id;
-			new_table_desc->installed_desc = table_desc;
-
-			return_ACPI_STATUS(AE_ALREADY_EXISTS);
-		}
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_print_table_header
+ *
+ * PARAMETERS:  Address             - Table physical address
+ *              Header              - Table header
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
+ *
+ ******************************************************************************/
 
-		/* Get next table on the list */
+void
+acpi_tb_print_table_header(acpi_physical_address address,
+			   struct acpi_table_header *header)
+{
 
-		table_desc = table_desc->next;
+	if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) {
+
+		/* FACS only has signature and length fields of common table header */
+
+		ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X",
+			   header->signature, (unsigned long)address,
+			   header->length));
+	} else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
+
+		/* RSDP has no common fields */
+
+		ACPI_INFO((AE_INFO, "RSDP %08lX, %04X (r%d %6.6s)",
+			   (unsigned long)address,
+			   (ACPI_CAST_PTR(struct acpi_table_rsdp, header)->
+			    revision >
+			    0) ? ACPI_CAST_PTR(struct acpi_table_rsdp,
+					       header)->length : 20,
+			   ACPI_CAST_PTR(struct acpi_table_rsdp,
+					 header)->revision,
+			   ACPI_CAST_PTR(struct acpi_table_rsdp,
+					 header)->oem_id));
+	} else {
+		/* Standard ACPI table with full common header */
+
+		ACPI_INFO((AE_INFO,
+			   "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)",
+			   header->signature, (unsigned long)address,
+			   header->length, header->revision, header->oem_id,
+			   header->oem_table_id, header->oem_revision,
+			   header->asl_compiler_id,
+			   header->asl_compiler_revision));
 	}
-
-	return_ACPI_STATUS(AE_OK);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_validate_table_header
+ * FUNCTION:    acpi_tb_validate_checksum
  *
- * PARAMETERS:  table_header        - Logical pointer to the table
+ * PARAMETERS:  Table               - ACPI table to verify
+ *              Length              - Length of entire table
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Check an ACPI table header for validity
- *
- * NOTE:  Table pointers are validated as follows:
- *          1) Table pointer must point to valid physical memory
- *          2) Signature must be 4 ASCII chars, even if we don't recognize the
- *             name
- *          3) Table must be readable for length specified in the header
- *          4) Table checksum must be valid (with the exception of the FACS
- *              which has no checksum because it contains variable fields)
+ * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
+ *              exception on bad checksum.
  *
  ******************************************************************************/
 
-acpi_status
-acpi_tb_validate_table_header(struct acpi_table_header *table_header)
+acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
 {
-	acpi_name signature;
-
-	ACPI_FUNCTION_ENTRY();
-
-	/* Verify that this is a valid address */
-
-	if (!acpi_os_readable(table_header, sizeof(struct acpi_table_header))) {
-		ACPI_ERROR((AE_INFO,
-			    "Cannot read table header at %p", table_header));
-
-		return (AE_BAD_ADDRESS);
-	}
+	u8 checksum;
 
-	/* Ensure that the signature is 4 ASCII characters */
+	/* Compute the checksum on the table */
 
-	ACPI_MOVE_32_TO_32(&signature, table_header->signature);
-	if (!acpi_ut_valid_acpi_name(signature)) {
-		ACPI_ERROR((AE_INFO, "Invalid table signature 0x%8.8X",
-			    signature));
+	checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
 
-		ACPI_DUMP_BUFFER(table_header,
-				 sizeof(struct acpi_table_header));
-		return (AE_BAD_SIGNATURE);
-	}
+	/* Checksum ok? (should be zero) */
 
-	/* Validate the table length */
+	if (checksum) {
+		ACPI_WARNING((AE_INFO,
+			      "Incorrect checksum in table [%4.4s] -  %2.2X, should be %2.2X",
+			      table->signature, table->checksum,
+			      (u8) (table->checksum - checksum)));
 
-	if (table_header->length < sizeof(struct acpi_table_header)) {
-		ACPI_ERROR((AE_INFO,
-			    "Invalid length 0x%X in table with signature %4.4s",
-			    (u32) table_header->length,
-			    ACPI_CAST_PTR(char, &signature)));
+#if (ACPI_CHECKSUM_ABORT)
 
-		ACPI_DUMP_BUFFER(table_header,
-				 sizeof(struct acpi_table_header));
-		return (AE_BAD_HEADER);
+		return (AE_BAD_CHECKSUM);
+#endif
 	}
 
 	return (AE_OK);
@@ -186,157 +168,320 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_sum_table
+ * FUNCTION:    acpi_tb_checksum
  *
- * PARAMETERS:  Buffer              - Buffer to sum
- *              Length              - Size of the buffer
+ * PARAMETERS:  Buffer          - Pointer to memory region to be checked
+ *              Length          - Length of this memory region
  *
- * RETURN:      8 bit sum of buffer
+ * RETURN:      Checksum (u8)
  *
- * DESCRIPTION: Computes an 8 bit sum of the buffer(length) and returns it.
+ * DESCRIPTION: Calculates circular checksum of memory region.
  *
  ******************************************************************************/
 
-u8 acpi_tb_sum_table(void *buffer, u32 length)
+u8 acpi_tb_checksum(u8 * buffer, acpi_native_uint length)
 {
-	acpi_native_uint i;
 	u8 sum = 0;
+	u8 *end = buffer + length;
 
-	if (!buffer || !length) {
-		return (0);
+	while (buffer < end) {
+		sum = (u8) (sum + *(buffer++));
 	}
 
-	for (i = 0; i < length; i++) {
-		sum = (u8) (sum + ((u8 *) buffer)[i]);
-	}
-	return (sum);
+	return sum;
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_generate_checksum
+ * FUNCTION:    acpi_tb_install_table
  *
- * PARAMETERS:  Table               - Pointer to a valid ACPI table (with a
- *                                    standard ACPI header)
+ * PARAMETERS:  Address                 - Physical address of DSDT or FACS
+ *              Flags                   - Flags
+ *              Signature               - Table signature, NULL if no need to
+ *                                        match
+ *              table_index             - Index into root table array
  *
- * RETURN:      8 bit checksum of buffer
+ * RETURN:      None
  *
- * DESCRIPTION: Computes an 8 bit checksum of the table.
+ * DESCRIPTION: Install an ACPI table into the global data structure.
  *
  ******************************************************************************/
 
-u8 acpi_tb_generate_checksum(struct acpi_table_header * table)
+void
+acpi_tb_install_table(acpi_physical_address address,
+		      u8 flags, char *signature, acpi_native_uint table_index)
 {
-	u8 checksum;
+	struct acpi_table_header *table;
+
+	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) {
+		return;
+	}
+
+	/* If a particular signature is expected, signature must match */
+
+	if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
+		ACPI_ERROR((AE_INFO,
+			    "Invalid signature 0x%X for ACPI table [%s]",
+			    *ACPI_CAST_PTR(u32, table->signature), signature));
+		goto unmap_and_exit;
+	}
 
-	/* Sum the entire table as-is */
+	/* Initialize the table entry */
 
-	checksum = acpi_tb_sum_table(table, table->length);
+	acpi_gbl_root_table_list.tables[table_index].address = address;
+	acpi_gbl_root_table_list.tables[table_index].length = table->length;
+	acpi_gbl_root_table_list.tables[table_index].flags = flags;
 
-	/* Subtract off the existing checksum value in the table */
+	ACPI_MOVE_32_TO_32(&
+			   (acpi_gbl_root_table_list.tables[table_index].
+			    signature), table->signature);
 
-	checksum = (u8) (checksum - table->checksum);
+	acpi_tb_print_table_header(address, table);
 
-	/* Compute the final checksum */
+	if (table_index == ACPI_TABLE_INDEX_DSDT) {
 
-	checksum = (u8) (0 - checksum);
-	return (checksum);
+		/* Global integer width is based upon revision of the DSDT */
+
+		acpi_ut_set_integer_width(table->revision);
+	}
+
+      unmap_and_exit:
+	acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_set_checksum
+ * FUNCTION:    acpi_tb_get_root_table_entry
  *
- * PARAMETERS:  Table               - Pointer to a valid ACPI table (with a
- *                                    standard ACPI header)
+ * PARAMETERS:  table_entry         - Pointer to the RSDT/XSDT table entry
+ *              table_entry_size    - sizeof 32 or 64 (RSDT or XSDT)
  *
- * RETURN:      None. Sets the table checksum field
+ * RETURN:      Physical address extracted from the root table
  *
- * DESCRIPTION: Computes an 8 bit checksum of the table and inserts the
- *              checksum into the table header.
+ * DESCRIPTION: Get one root table entry. Handles 32-bit and 64-bit cases on
+ *              both 32-bit and 64-bit platforms
+ *
+ * NOTE:        acpi_physical_address is 32-bit on 32-bit platforms, 64-bit on
+ *              64-bit platforms.
  *
  ******************************************************************************/
 
-void acpi_tb_set_checksum(struct acpi_table_header *table)
+static acpi_physical_address
+acpi_tb_get_root_table_entry(u8 * table_entry,
+			     acpi_native_uint table_entry_size)
 {
+	u64 address64;
+
+	/*
+	 * Get the table physical address (32-bit for RSDT, 64-bit for XSDT):
+	 * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT
+	 */
+	if (table_entry_size == sizeof(u32)) {
+		/*
+		 * 32-bit platform, RSDT: Return 32-bit table entry
+		 * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return
+		 */
+		return ((acpi_physical_address)
+			(*ACPI_CAST_PTR(u32, table_entry)));
+	} else {
+		/*
+		 * 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return
+		 * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit
+		 */
+		ACPI_MOVE_64_TO_64(&address64, table_entry);
 
-	table->checksum = acpi_tb_generate_checksum(table);
+#if ACPI_MACHINE_WIDTH == 32
+		if (address64 > ACPI_UINT32_MAX) {
+
+			/* Will truncate 64-bit address to 32 bits, issue warning */
+
+			ACPI_WARNING((AE_INFO,
+				      "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating",
+				      ACPI_FORMAT_UINT64(address64)));
+		}
+#endif
+		return ((acpi_physical_address) (address64));
+	}
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_verify_table_checksum
+ * FUNCTION:    acpi_tb_parse_root_table
+ *
+ * PARAMETERS:  Rsdp                    - Pointer to the RSDP
+ *              Flags                   - Flags
  *
- * PARAMETERS:  *table_header           - ACPI table to verify
+ * RETURN:      Status
  *
- * RETURN:      8 bit checksum of table
+ * DESCRIPTION: This function is called to parse the Root System Description
+ *              Table (RSDT or XSDT)
  *
- * DESCRIPTION: Generates an 8 bit checksum of table and returns and compares
- *              it to the existing checksum value.
+ * NOTE:        Tables are mapped (not copied) for efficiency. The FACS must
+ *              be mapped and cannot be copied because it contains the actual
+ *              memory location of the ACPI Global Lock.
  *
  ******************************************************************************/
 
-acpi_status
-acpi_tb_verify_table_checksum(struct acpi_table_header *table_header)
+acpi_status __init
+acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
 {
-	u8 checksum;
+	struct acpi_table_rsdp *rsdp;
+	acpi_native_uint table_entry_size;
+	acpi_native_uint i;
+	u32 table_count;
+	struct acpi_table_header *table;
+	acpi_physical_address address;
+	u32 length;
+	u8 *table_entry;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(tb_parse_root_table);
+
+	/*
+	 * Map the entire RSDP and extract the address of the RSDT or XSDT
+	 */
+	rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp));
+	if (!rsdp) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
 
-	ACPI_FUNCTION_TRACE(tb_verify_table_checksum);
+	acpi_tb_print_table_header(rsdp_address,
+				   ACPI_CAST_PTR(struct acpi_table_header,
+						 rsdp));
 
-	/* Compute the checksum on the table */
+	/* Differentiate between RSDT and XSDT root tables */
 
-	checksum = acpi_tb_generate_checksum(table_header);
+	if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+		/*
+		 * Root table is an XSDT (64-bit physical addresses). We must use the
+		 * XSDT if the revision is > 1 and the XSDT pointer is present, as per
+		 * the ACPI specification.
+		 */
+		address = (acpi_physical_address) rsdp->xsdt_physical_address;
+		table_entry_size = sizeof(u64);
+	} else {
+		/* Root table is an RSDT (32-bit physical addresses) */
 
-	/* Checksum ok? */
+		address = (acpi_physical_address) rsdp->rsdt_physical_address;
+		table_entry_size = sizeof(u32);
+	}
 
-	if (checksum == table_header->checksum) {
-		return_ACPI_STATUS(AE_OK);
+	/*
+	 * It is not possible to map more than one entry in some environments,
+	 * so unmap the RSDP here before mapping other tables
+	 */
+	acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
+
+	/* Map the RSDT/XSDT table header to get the full table length */
+
+	table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+	if (!table) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	ACPI_WARNING((AE_INFO,
-		      "Incorrect checksum in table [%4.4s] - is %2.2X, should be %2.2X",
-		      table_header->signature, table_header->checksum,
-		      checksum));
+	acpi_tb_print_table_header(address, table);
 
-	return_ACPI_STATUS(AE_BAD_CHECKSUM);
-}
+	/* Get the length of the full table, verify length and map entire table */
 
-#ifdef ACPI_OBSOLETE_FUNCTIONS
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_handle_to_object
- *
- * PARAMETERS:  table_id            - Id for which the function is searching
- *              table_desc          - Pointer to return the matching table
- *                                      descriptor.
- *
- * RETURN:      Search the tables to find one with a matching table_id and
- *              return a pointer to that table descriptor.
- *
- ******************************************************************************/
+	length = table->length;
+	acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
 
-acpi_status
-acpi_tb_handle_to_object(u16 table_id,
-			 struct acpi_table_desc **return_table_desc)
-{
-	u32 i;
-	struct acpi_table_desc *table_desc;
+	if (length < sizeof(struct acpi_table_header)) {
+		ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT",
+			    length));
+		return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
+	}
 
-	ACPI_FUNCTION_NAME(tb_handle_to_object);
+	table = acpi_os_map_memory(address, length);
+	if (!table) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	/* Validate the root table checksum */
+
+	status = acpi_tb_verify_checksum(table, length);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_unmap_memory(table, length);
+		return_ACPI_STATUS(status);
+	}
 
-	for (i = 0; i < ACPI_TABLE_MAX; i++) {
-		table_desc = acpi_gbl_table_lists[i].next;
-		while (table_desc) {
-			if (table_desc->table_id == table_id) {
-				*return_table_desc = table_desc;
-				return (AE_OK);
+	/* Calculate the number of tables described in the root table */
+
+	table_count =
+	    (u32) ((table->length -
+		    sizeof(struct acpi_table_header)) / table_entry_size);
+
+	/*
+	 * First two entries in the table array are reserved for the DSDT and FACS,
+	 * which are not actually present in the RSDT/XSDT - they come from the FADT
+	 */
+	table_entry =
+	    ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
+	acpi_gbl_root_table_list.count = 2;
+
+	/*
+	 * Initialize the root table array from the RSDT/XSDT
+	 */
+	for (i = 0; i < table_count; i++) {
+		if (acpi_gbl_root_table_list.count >=
+		    acpi_gbl_root_table_list.size) {
+
+			/* 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)
+					      (acpi_gbl_root_table_list.size -
+					       acpi_gbl_root_table_list.
+					       count)));
+				break;
 			}
+		}
+
+		/* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */
 
-			table_desc = table_desc->next;
+		acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
+		    address =
+		    acpi_tb_get_root_table_entry(table_entry, table_entry_size);
+
+		table_entry += table_entry_size;
+		acpi_gbl_root_table_list.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);
+
+	/*
+	 * Complete the initialization of the root table array by examining
+	 * the header of each table
+	 */
+	for (i = 2; i < acpi_gbl_root_table_list.count; i++) {
+		acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
+				      address, flags, NULL, i);
+
+		/* Special case for FADT - get the DSDT and FACS */
+
+		if (ACPI_COMPARE_NAME
+		    (&acpi_gbl_root_table_list.tables[i].signature,
+		     ACPI_SIG_FADT)) {
+			acpi_tb_parse_fadt(i, flags);
 		}
 	}
 
-	ACPI_ERROR((AE_INFO, "TableId=%X does not exist", table_id));
-	return (AE_BAD_PARAMETER);
+	return_ACPI_STATUS(AE_OK);
 }
-#endif
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 5ba9303293a..807978d5381 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -6,7 +6,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2006, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -49,80 +49,158 @@
 #define _COMPONENT          ACPI_TABLES
 ACPI_MODULE_NAME("tbxface")
 
+/* Local prototypes */
+static acpi_status acpi_tb_load_namespace(void);
+
 /*******************************************************************************
  *
- * FUNCTION:    acpi_load_tables
+ * FUNCTION:    acpi_allocate_root_table
  *
- * PARAMETERS:  None
+ * PARAMETERS:  initial_table_count - Size of initial_table_array, in number of
+ *                                    struct acpi_table_desc structures
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to load the ACPI tables from the
- *              provided RSDT
+ * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and
+ *              acpi_initialize_tables.
  *
  ******************************************************************************/
-acpi_status acpi_load_tables(void)
+
+acpi_status acpi_allocate_root_table(u32 initial_table_count)
 {
-	struct acpi_pointer rsdp_address;
-	acpi_status status;
 
-	ACPI_FUNCTION_TRACE(acpi_load_tables);
+	acpi_gbl_root_table_list.size = initial_table_count;
+	acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE;
 
-	/* Get the RSDP */
+	return (acpi_tb_resize_root_table_list());
+}
 
-	status = acpi_os_get_root_pointer(ACPI_LOGICAL_ADDRESSING,
-					  &rsdp_address);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Could not get the RSDP"));
-		goto error_exit;
-	}
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_initialize_tables
+ *
+ * PARAMETERS:  initial_table_array - Pointer to an array of pre-allocated
+ *                                    struct acpi_table_desc structures. If NULL, the
+ *                                    array is dynamically allocated.
+ *              initial_table_count - Size of initial_table_array, in number of
+ *                                    struct acpi_table_desc structures
+ *              allow_realloc       - Flag to tell Table Manager if resize of
+ *                                    pre-allocated array is allowed. Ignored
+ *                                    if initial_table_array is NULL.
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT.
+ *
+ * NOTE:        Allows static allocation of the initial table array in order
+ *              to avoid the use of dynamic memory in confined environments
+ *              such as the kernel boot sequence where it may not be available.
+ *
+ *              If the host OS memory managers are initialized, use NULL for
+ *              initial_table_array, and the table will be dynamically allocated.
+ *
+ ******************************************************************************/
 
-	/* Map and validate the RSDP */
+acpi_status __init
+acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
+		       u32 initial_table_count, u8 allow_resize)
+{
+	acpi_physical_address rsdp_address;
+	acpi_status status;
 
-	acpi_gbl_table_flags = rsdp_address.pointer_type;
+	ACPI_FUNCTION_TRACE(acpi_initialize_tables);
 
-	status = acpi_tb_verify_rsdp(&rsdp_address);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "During RSDP validation"));
-		goto error_exit;
+	/*
+	 * Set up the Root Table Array
+	 * Allocate the table array if requested
+	 */
+	if (!initial_table_array) {
+		status = acpi_allocate_root_table(initial_table_count);
+		if (ACPI_FAILURE(status)) {
+			return_ACPI_STATUS(status);
+		}
+	} else {
+		/* Root Table Array has been statically allocated by the host */
+
+		ACPI_MEMSET(initial_table_array, 0,
+			    initial_table_count *
+			    sizeof(struct acpi_table_desc));
+
+		acpi_gbl_root_table_list.tables = initial_table_array;
+		acpi_gbl_root_table_list.size = initial_table_count;
+		acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN;
+		if (allow_resize) {
+			acpi_gbl_root_table_list.flags |=
+			    ACPI_ROOT_ALLOW_RESIZE;
+		}
 	}
 
-	/* Get the RSDT via the RSDP */
+	/* Get the address of the RSDP */
 
-	status = acpi_tb_get_table_rsdt();
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Could not load RSDT"));
-		goto error_exit;
+	rsdp_address = acpi_os_get_root_pointer();
+	if (!rsdp_address) {
+		return_ACPI_STATUS(AE_NOT_FOUND);
 	}
 
-	/* Now get the tables needed by this subsystem (FADT, DSDT, etc.) */
+	/*
+	 * Get the root table (RSDT or XSDT) and extract all entries to the local
+	 * Root Table Array. This array contains the information of the RSDT/XSDT
+	 * in a common, more useable format.
+	 */
+	status =
+	    acpi_tb_parse_root_table(rsdp_address, ACPI_TABLE_ORIGIN_MAPPED);
+	return_ACPI_STATUS(status);
+}
 
-	status = acpi_tb_get_required_tables();
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"Could not get all required tables (DSDT/FADT/FACS)"));
-		goto error_exit;
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_reallocate_root_table
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
+ *              root list from the previously provided scratch area. Should
+ *              be called once dynamic memory allocation is available in the
+ *              kernel
+ *
+ ******************************************************************************/
+acpi_status acpi_reallocate_root_table(void)
+{
+	struct acpi_table_desc *tables;
+	acpi_size new_size;
+
+	ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
+
+	/*
+	 * Only reallocate the root table if the host provided a static buffer
+	 * for the table array in the call to acpi_initialize_tables.
+	 */
+	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+		return_ACPI_STATUS(AE_SUPPORT);
 	}
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
+	new_size =
+	    (acpi_gbl_root_table_list.count +
+	     ACPI_ROOT_TABLE_SIZE_INCREMENT) * sizeof(struct acpi_table_desc);
 
-	/* Load the namespace from the tables */
+	/* Create new array and copy the old array */
 
-	status = acpi_ns_load_namespace();
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Could not load namespace"));
-		goto error_exit;
+	tables = ACPI_ALLOCATE_ZEROED(new_size);
+	if (!tables) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	return_ACPI_STATUS(AE_OK);
+	ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size);
 
-      error_exit:
-	ACPI_EXCEPTION((AE_INFO, status, "Could not load tables"));
-	return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_load_tables)
+	acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count;
+	acpi_gbl_root_table_list.tables = tables;
+	acpi_gbl_root_table_list.flags =
+	    ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE;
 
+	return_ACPI_STATUS(AE_OK);
+}
 /*******************************************************************************
  *
  * FUNCTION:    acpi_load_table
@@ -141,342 +219,405 @@ ACPI_EXPORT_SYMBOL(acpi_load_tables)
 acpi_status acpi_load_table(struct acpi_table_header *table_ptr)
 {
 	acpi_status status;
-	struct acpi_table_desc table_info;
-	struct acpi_pointer address;
-
-	ACPI_FUNCTION_TRACE(acpi_load_table);
-
-	if (!table_ptr) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/* Copy the table to a local buffer */
+	acpi_native_uint table_index;
+	struct acpi_table_desc table_desc;
 
-	address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING;
-	address.pointer.logical = table_ptr;
-
-	status = acpi_tb_get_table_body(&address, table_ptr, &table_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Check signature for a valid table type */
-
-	status = acpi_tb_recognize_table(&table_info, ACPI_TABLE_ALL);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
+	if (!table_ptr)
+		return AE_BAD_PARAMETER;
 
-	/* Install the new table into the local data structures */
+	ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc));
+	table_desc.pointer = table_ptr;
+	table_desc.length = table_ptr->length;
+	table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN;
 
-	status = acpi_tb_install_table(&table_info);
+	/*
+	 * Install the new table into the local data structures
+	 */
+	status = acpi_tb_add_table(&table_desc, &table_index);
 	if (ACPI_FAILURE(status)) {
-		if (status == AE_ALREADY_EXISTS) {
-
-			/* Table already exists, no error */
-
-			status = AE_OK;
-		}
-
-		/* Free table allocated by acpi_tb_get_table_body */
-
-		acpi_tb_delete_single_table(&table_info);
-		return_ACPI_STATUS(status);
+		return status;
 	}
+	status = acpi_ns_load_table(table_index, acpi_gbl_root_node);
+	return status;
+}
 
-	/* Convert the table to common format if necessary */
-
-	switch (table_info.type) {
-	case ACPI_TABLE_ID_FADT:
-
-		status = acpi_tb_convert_table_fadt();
-		break;
-
-	case ACPI_TABLE_ID_FACS:
+ACPI_EXPORT_SYMBOL(acpi_load_table)
 
-		status = acpi_tb_build_common_facs(&table_info);
-		break;
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_get_table_header
+ *
+ * PARAMETERS:  Signature           - ACPI signature of needed table
+ *              Instance            - Which instance (for SSDTs)
+ *              out_table_header    - The pointer to the table header to fill
+ *
+ * RETURN:      Status and pointer to mapped table header
+ *
+ * DESCRIPTION: Finds an ACPI table header.
+ *
+ * NOTE:        Caller is responsible in unmapping the header with
+ *              acpi_os_unmap_memory
+ *
+ *****************************************************************************/
+acpi_status
+acpi_get_table_header(char *signature,
+		      acpi_native_uint instance,
+		      struct acpi_table_header *out_table_header)
+{
+	acpi_native_uint i;
+	acpi_native_uint j;
+	struct acpi_table_header *header;
 
-	default:
-		/* Load table into namespace if it contains executable AML */
+	/* Parameter validation */
 
-		status =
-		    acpi_ns_load_table(table_info.installed_desc,
-				       acpi_gbl_root_node);
-		break;
+	if (!signature || !out_table_header) {
+		return (AE_BAD_PARAMETER);
 	}
 
-	if (ACPI_FAILURE(status)) {
+	/*
+	 * Walk the root table list
+	 */
+	for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) {
+		if (!ACPI_COMPARE_NAME
+		    (&(acpi_gbl_root_table_list.tables[i].signature),
+		     signature)) {
+			continue;
+		}
 
-		/* Uninstall table and free the buffer */
+		if (++j < instance) {
+			continue;
+		}
 
-		(void)acpi_tb_uninstall_table(table_info.installed_desc);
+		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) {
+				header =
+				    acpi_os_map_memory(acpi_gbl_root_table_list.
+						       tables[i].address,
+						       sizeof(struct
+							      acpi_table_header));
+				if (!header) {
+					return AE_NO_MEMORY;
+				}
+				ACPI_MEMCPY(out_table_header, header,
+					    sizeof(struct acpi_table_header));
+				acpi_os_unmap_memory(header,
+						     sizeof(struct
+							    acpi_table_header));
+			} else {
+				return AE_NOT_FOUND;
+			}
+		} else {
+			ACPI_MEMCPY(out_table_header,
+				    acpi_gbl_root_table_list.tables[i].pointer,
+				    sizeof(struct acpi_table_header));
+		}
+		return (AE_OK);
 	}
 
-	return_ACPI_STATUS(status);
+	return (AE_NOT_FOUND);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_load_table)
+ACPI_EXPORT_SYMBOL(acpi_get_table_header)
 
-/*******************************************************************************
+
+/******************************************************************************
  *
  * FUNCTION:    acpi_unload_table_id
  *
- * PARAMETERS:  table_type    - Type of table to be unloaded
- *              id            - Owner ID of the table to be removed.
+ * PARAMETERS:  id            - Owner ID of the table to be removed.
  *
  * RETURN:      Status
  *
  * DESCRIPTION: This routine is used to force the unload of a table (by id)
  *
  ******************************************************************************/
-acpi_status acpi_unload_table_id(acpi_table_type table_type, acpi_owner_id id)
+acpi_status acpi_unload_table_id(acpi_owner_id id)
 {
-	struct acpi_table_desc *table_desc;
-	acpi_status status;
+	int i;
+	acpi_status status = AE_NOT_EXIST;
 
 	ACPI_FUNCTION_TRACE(acpi_unload_table);
 
-	/* Parameter validation */
-	if (table_type > ACPI_TABLE_ID_MAX)
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-
 	/* Find table from the requested type list */
-	table_desc = acpi_gbl_table_lists[table_type].next;
-	while (table_desc && table_desc->owner_id != id)
-		table_desc = table_desc->next;
-
-	if (!table_desc)
-		return_ACPI_STATUS(AE_NOT_EXIST);
-
-	/*
-	 * Delete all namespace objects owned by this table. Note that these
-	 * objects can appear anywhere in the namespace by virtue of the AML
-	 * "Scope" operator. Thus, we need to track ownership by an ID, not
-	 * simply a position within the hierarchy
-	 */
-	acpi_ns_delete_namespace_by_owner(table_desc->owner_id);
-
-	status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-	if (ACPI_FAILURE(status))
-		return_ACPI_STATUS(status);
-
-	(void)acpi_tb_uninstall_table(table_desc);
-
-	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-
-	return_ACPI_STATUS(AE_OK);
+	for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+		if (id != acpi_gbl_root_table_list.tables[i].owner_id) {
+			continue;
+		}
+		/*
+		* Delete all namespace objects owned by this table. Note that these
+		* objects can appear anywhere in the namespace by virtue of the AML
+		* "Scope" operator. Thus, we need to track ownership by an ID, not
+		* simply a position within the hierarchy
+		*/
+		acpi_tb_delete_namespace_by_owner(i);
+		acpi_tb_release_owner_id(i);
+		acpi_tb_set_table_loaded_flag(i, FALSE);
+	}
+	return_ACPI_STATUS(status);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
 
-#ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
- * FUNCTION:    acpi_unload_table
+ * FUNCTION:    acpi_get_table
  *
- * PARAMETERS:  table_type    - Type of table to be unloaded
+ * PARAMETERS:  Signature           - ACPI signature of needed table
+ *              Instance            - Which instance (for SSDTs)
+ *              out_table           - Where the pointer to the table is returned
  *
- * RETURN:      Status
+ * RETURN:      Status and pointer to table
  *
- * DESCRIPTION: This routine is used to force the unload of a table
+ * DESCRIPTION: Finds and verifies an ACPI table.
  *
- ******************************************************************************/
-acpi_status acpi_unload_table(acpi_table_type table_type)
+ *****************************************************************************/
+acpi_status
+acpi_get_table(char *signature,
+	       acpi_native_uint instance, struct acpi_table_header ** out_table)
 {
-	struct acpi_table_desc *table_desc;
-
-	ACPI_FUNCTION_TRACE(acpi_unload_table);
+	acpi_native_uint i;
+	acpi_native_uint j;
+	acpi_status status;
 
 	/* Parameter validation */
 
-	if (table_type > ACPI_TABLE_ID_MAX) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	if (!signature || !out_table) {
+		return (AE_BAD_PARAMETER);
 	}
 
-	/* Find all tables of the requested type */
+	/*
+	 * Walk the root table list
+	 */
+	for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) {
+		if (!ACPI_COMPARE_NAME
+		    (&(acpi_gbl_root_table_list.tables[i].signature),
+		     signature)) {
+			continue;
+		}
 
-	table_desc = acpi_gbl_table_lists[table_type].next;
-	if (!table_desc) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
-	}
+		if (++j < instance) {
+			continue;
+		}
 
-	while (table_desc) {
-		/*
-		 * Delete all namespace objects owned by this table. Note that these
-		 * objects can appear anywhere in the namespace by virtue of the AML
-		 * "Scope" operator. Thus, we need to track ownership by an ID, not
-		 * simply a position within the hierarchy
-		 */
-		acpi_ns_delete_namespace_by_owner(table_desc->owner_id);
-		table_desc = table_desc->next;
-	}
+		status =
+		    acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
+		if (ACPI_SUCCESS(status)) {
+			*out_table = acpi_gbl_root_table_list.tables[i].pointer;
+		}
 
-	/* Delete (or unmap) all tables of this type */
+		if (!acpi_gbl_permanent_mmap) {
+			acpi_gbl_root_table_list.tables[i].pointer = 0;
+		}
 
-	acpi_tb_delete_tables_by_type(table_type);
-	return_ACPI_STATUS(AE_OK);
+		return (status);
+	}
+
+	return (AE_NOT_FOUND);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_unload_table)
+ACPI_EXPORT_SYMBOL(acpi_get_table)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_table_header
+ * FUNCTION:    acpi_get_table_by_index
  *
- * PARAMETERS:  table_type      - one of the defined table types
- *              Instance        - the non zero instance of the table, allows
- *                                support for multiple tables of the same type
- *                                see acpi_gbl_acpi_table_flag
- *              out_table_header - pointer to the struct acpi_table_header if successful
+ * PARAMETERS:  table_index         - Table index
+ *              Table               - Where the pointer to the table is returned
  *
- * DESCRIPTION: This function is called to get an ACPI table header. The caller
- *              supplies an pointer to a data area sufficient to contain an ACPI
- *              struct acpi_table_header structure.
+ * RETURN:      Status and pointer to the table
  *
- *              The header contains a length field that can be used to determine
- *              the size of the buffer needed to contain the entire table. This
- *              function is not valid for the RSD PTR table since it does not
- *              have a standard header and is fixed length.
+ * DESCRIPTION: Obtain a table by an index into the global table list.
  *
  ******************************************************************************/
 acpi_status
-acpi_get_table_header(acpi_table_type table_type,
-		      u32 instance, struct acpi_table_header *out_table_header)
+acpi_get_table_by_index(acpi_native_uint table_index,
+			struct acpi_table_header ** table)
 {
-	struct acpi_table_header *tbl_ptr;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE(acpi_get_table_header);
+	ACPI_FUNCTION_TRACE(acpi_get_table_by_index);
+
+	/* Parameter validation */
 
-	if ((instance == 0) ||
-	    (table_type == ACPI_TABLE_ID_RSDP) || (!out_table_header)) {
+	if (!table) {
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Check the table type and instance */
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+	/* Validate index */
 
-	if ((table_type > ACPI_TABLE_ID_MAX) ||
-	    (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) &&
-	     instance > 1)) {
+	if (table_index >= acpi_gbl_root_table_list.count) {
+		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 		return_ACPI_STATUS(AE_BAD_PARAMETER);
 	}
 
-	/* Get a pointer to the entire table */
+	if (!acpi_gbl_root_table_list.tables[table_index].pointer) {
 
-	status = acpi_tb_get_table_ptr(table_type, instance, &tbl_ptr);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
+		/* Table is not mapped, map it */
 
-	/* The function will return a NULL pointer if the table is not loaded */
-
-	if (tbl_ptr == NULL) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
+		status =
+		    acpi_tb_verify_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);
+		}
 	}
 
-	/* Copy the header to the caller's buffer */
-
-	ACPI_MEMCPY(ACPI_CAST_PTR(void, out_table_header),
-		    ACPI_CAST_PTR(void, tbl_ptr),
-		    sizeof(struct acpi_table_header));
-
-	return_ACPI_STATUS(status);
+	*table = acpi_gbl_root_table_list.tables[table_index].pointer;
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(AE_OK);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_get_table_header)
-#endif				/*  ACPI_FUTURE_USAGE  */
+ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_get_table
+ * FUNCTION:    acpi_tb_load_namespace
  *
- * PARAMETERS:  table_type      - one of the defined table types
- *              Instance        - the non zero instance of the table, allows
- *                                support for multiple tables of the same type
- *                                see acpi_gbl_acpi_table_flag
- *              ret_buffer      - pointer to a structure containing a buffer to
- *                                receive the table
+ * PARAMETERS:  None
  *
  * RETURN:      Status
  *
- * DESCRIPTION: This function is called to get an ACPI table. The caller
- *              supplies an out_buffer large enough to contain the entire ACPI
- *              table. The caller should call the acpi_get_table_header function
- *              first to determine the buffer size needed. Upon completion
- *              the out_buffer->Length field will indicate the number of bytes
- *              copied into the out_buffer->buf_ptr buffer. This table will be
- *              a complete table including the header.
+ * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
+ *              the RSDT/XSDT.
  *
  ******************************************************************************/
-acpi_status
-acpi_get_table(acpi_table_type table_type,
-	       u32 instance, struct acpi_buffer *ret_buffer)
+static acpi_status acpi_tb_load_namespace(void)
 {
-	struct acpi_table_header *tbl_ptr;
 	acpi_status status;
-	acpi_size table_length;
+	struct acpi_table_header *table;
+	acpi_native_uint i;
 
-	ACPI_FUNCTION_TRACE(acpi_get_table);
+	ACPI_FUNCTION_TRACE(tb_load_namespace);
 
-	/* Parameter validation */
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
 
-	if (instance == 0) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	/*
+	 * Load the namespace. The DSDT is required, but any SSDT and PSDT tables
+	 * are optional.
+	 */
+	if (!acpi_gbl_root_table_list.count ||
+	    !ACPI_COMPARE_NAME(&
+			       (acpi_gbl_root_table_list.
+				tables[ACPI_TABLE_INDEX_DSDT].signature),
+			       ACPI_SIG_DSDT)
+	    ||
+	    ACPI_FAILURE(acpi_tb_verify_table
+			 (&acpi_gbl_root_table_list.
+			  tables[ACPI_TABLE_INDEX_DSDT]))) {
+		status = AE_NO_ACPI_TABLES;
+		goto unlock_and_exit;
 	}
 
-	status = acpi_ut_validate_buffer(ret_buffer);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+	/*
+	 * Find DSDT table
+	 */
+	status =
+	    acpi_os_table_override(acpi_gbl_root_table_list.
+				   tables[ACPI_TABLE_INDEX_DSDT].pointer,
+				   &table);
+	if (ACPI_SUCCESS(status) && table) {
+		/*
+		 * DSDT table has been found
+		 */
+		acpi_tb_delete_table(&acpi_gbl_root_table_list.
+				     tables[ACPI_TABLE_INDEX_DSDT]);
+		acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer =
+		    table;
+		acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length =
+		    table->length;
+		acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags =
+		    ACPI_TABLE_ORIGIN_UNKNOWN;
+
+		ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS"));
+		acpi_tb_print_table_header(0, table);
 	}
 
-	/* Check the table type and instance */
+	status =
+	    acpi_tb_verify_table(&acpi_gbl_root_table_list.
+				 tables[ACPI_TABLE_INDEX_DSDT]);
+	if (ACPI_FAILURE(status)) {
 
-	if ((table_type > ACPI_TABLE_ID_MAX) ||
-	    (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) &&
-	     instance > 1)) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
+		/* A valid DSDT is required */
+
+		status = AE_NO_ACPI_TABLES;
+		goto unlock_and_exit;
 	}
 
-	/* Get a pointer to the entire table */
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 
-	status = acpi_tb_get_table_ptr(table_type, instance, &tbl_ptr);
+	/*
+	 * Load and parse tables.
+	 */
+	status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
 
 	/*
-	 * acpi_tb_get_table_ptr will return a NULL pointer if the
-	 * table is not loaded.
+	 * Load any SSDT or PSDT tables. Note: Loop leaves tables locked
 	 */
-	if (tbl_ptr == NULL) {
-		return_ACPI_STATUS(AE_NOT_EXIST);
+	(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+	for (i = 0; i < acpi_gbl_root_table_list.count; ++i) {
+		if ((!ACPI_COMPARE_NAME
+		     (&(acpi_gbl_root_table_list.tables[i].signature),
+		      ACPI_SIG_SSDT)
+		     &&
+		     !ACPI_COMPARE_NAME(&
+					(acpi_gbl_root_table_list.tables[i].
+					 signature), ACPI_SIG_PSDT))
+		    ||
+		    ACPI_FAILURE(acpi_tb_verify_table
+				 (&acpi_gbl_root_table_list.tables[i]))) {
+			continue;
+		}
+
+		/* Ignore errors while loading tables, get as many as possible */
+
+		(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+		(void)acpi_ns_load_table(i, acpi_gbl_root_node);
+		(void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
 	}
 
-	/* Get the table length */
+	ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
 
-	if (table_type == ACPI_TABLE_ID_RSDP) {
+      unlock_and_exit:
+	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+	return_ACPI_STATUS(status);
+}
 
-		/* RSD PTR is the only "table" without a header */
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_load_tables
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT
+ *
+ ******************************************************************************/
 
-		table_length = sizeof(struct rsdp_descriptor);
-	} else {
-		table_length = (acpi_size) tbl_ptr->length;
-	}
+acpi_status acpi_load_tables(void)
+{
+	acpi_status status;
 
-	/* Validate/Allocate/Clear caller buffer */
+	ACPI_FUNCTION_TRACE(acpi_load_tables);
 
-	status = acpi_ut_initialize_buffer(ret_buffer, table_length);
+	/*
+	 * Load the namespace from the tables
+	 */
+	status = acpi_tb_load_namespace();
 	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
+		ACPI_EXCEPTION((AE_INFO, status,
+				"While loading namespace from ACPI tables"));
 	}
 
-	/* Copy the table to the buffer */
-
-	ACPI_MEMCPY(ACPI_CAST_PTR(void, ret_buffer->pointer),
-		    ACPI_CAST_PTR(void, tbl_ptr), table_length);
-
-	return_ACPI_STATUS(AE_OK);
+	return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_get_table)
+ACPI_EXPORT_SYMBOL(acpi_load_tables)
diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c
index da2648bbdbc..cf8fa514189 100644
--- a/drivers/acpi/tables/tbxfroot.c
+++ b/drivers/acpi/tables/tbxfroot.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2006, R. Byron Moore
+ * Copyright (C) 2000 - 2007, R. Byron Moore
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -48,16 +48,15 @@
 ACPI_MODULE_NAME("tbxfroot")
 
 /* Local prototypes */
-static acpi_status
-acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags);
-
 static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length);
 
+static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_tb_validate_rsdp
  *
- * PARAMETERS:  Rsdp        - Pointer to unvalidated RSDP
+ * PARAMETERS:  Rsdp                - Pointer to unvalidated RSDP
  *
  * RETURN:      Status
  *
@@ -65,14 +64,18 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length);
  *
  ******************************************************************************/
 
-acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp)
+static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
 {
 	ACPI_FUNCTION_ENTRY();
 
 	/*
-	 *  The signature and checksum must both be correct
+	 * The signature and checksum must both be correct
+	 *
+	 * Note: Sometimes there exists more than one RSDP in memory; the valid
+	 * RSDP has a valid checksum, all others have an invalid checksum.
 	 */
-	if (ACPI_STRNCMP((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0) {
+	if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1)
+	    != 0) {
 
 		/* Nope, BAD Signature */
 
@@ -81,14 +84,14 @@ acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp)
 
 	/* Check the standard checksum */
 
-	if (acpi_tb_sum_table(rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
+	if (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) {
 		return (AE_BAD_CHECKSUM);
 	}
 
 	/* Check extended checksum if table version >= 2 */
 
 	if ((rsdp->revision >= 2) &&
-	    (acpi_tb_sum_table(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) {
+	    (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) {
 		return (AE_BAD_CHECKSUM);
 	}
 
@@ -97,314 +100,123 @@ acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp)
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_tb_find_table
- *
- * PARAMETERS:  Signature           - String with ACPI table signature
- *              oem_id              - String with the table OEM ID
- *              oem_table_id        - String with the OEM Table ID
- *              table_ptr           - Where the table pointer is returned
- *
- * RETURN:      Status
+ * FUNCTION:    acpi_tb_find_rsdp
  *
- * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the
- *              Signature, OEM ID and OEM Table ID.
+ * PARAMETERS:  table_address           - Where the table pointer is returned
  *
- ******************************************************************************/
-
-acpi_status
-acpi_tb_find_table(char *signature,
-		   char *oem_id,
-		   char *oem_table_id, struct acpi_table_header ** table_ptr)
-{
-	acpi_status status;
-	struct acpi_table_header *table;
-
-	ACPI_FUNCTION_TRACE(tb_find_table);
-
-	/* Validate string lengths */
-
-	if ((ACPI_STRLEN(signature) > ACPI_NAME_SIZE) ||
-	    (ACPI_STRLEN(oem_id) > sizeof(table->oem_id)) ||
-	    (ACPI_STRLEN(oem_table_id) > sizeof(table->oem_table_id))) {
-		return_ACPI_STATUS(AE_AML_STRING_LIMIT);
-	}
-
-	if (ACPI_COMPARE_NAME(signature, DSDT_SIG)) {
-		/*
-		 * The DSDT pointer is contained in the FADT, not the RSDT.
-		 * This code should suffice, because the only code that would perform
-		 * a "find" on the DSDT is the data_table_region() AML opcode -- in
-		 * which case, the DSDT is guaranteed to be already loaded.
-		 * If this becomes insufficient, the FADT will have to be found first.
-		 */
-		if (!acpi_gbl_DSDT) {
-			return_ACPI_STATUS(AE_NO_ACPI_TABLES);
-		}
-		table = acpi_gbl_DSDT;
-	} else {
-		/* Find the table */
-
-		status = acpi_get_firmware_table(signature, 1,
-						 ACPI_LOGICAL_ADDRESSING,
-						 &table);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-	}
-
-	/* Check oem_id and oem_table_id */
-
-	if ((oem_id[0] &&
-	     ACPI_STRNCMP(oem_id, table->oem_id,
-			  sizeof(table->oem_id))) ||
-	    (oem_table_id[0] &&
-	     ACPI_STRNCMP(oem_table_id, table->oem_table_id,
-			  sizeof(table->oem_table_id)))) {
-		return_ACPI_STATUS(AE_AML_NAME_NOT_FOUND);
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Found table [%4.4s]\n",
-			  table->signature));
-
-	*table_ptr = table;
-	return_ACPI_STATUS(AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_get_firmware_table
+ * RETURN:      Status, RSDP physical address
  *
- * PARAMETERS:  Signature       - Any ACPI table signature
- *              Instance        - the non zero instance of the table, allows
- *                                support for multiple tables of the same type
- *              Flags           - Physical/Virtual support
- *              table_pointer   - Where a buffer containing the table is
- *                                returned
+ * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
+ *              pointer structure.  If it is found, set *RSDP to point to it.
  *
- * RETURN:      Status
+ * NOTE1:       The RSDP must be either in the first 1_k of the Extended
+ *              BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.)
+ *              Only a 32-bit physical address is necessary.
  *
- * DESCRIPTION: This function is called to get an ACPI table. A buffer is
- *              allocated for the table and returned in table_pointer.
- *              This table will be a complete table including the header.
+ * NOTE2:       This function is always available, regardless of the
+ *              initialization state of the rest of ACPI.
  *
  ******************************************************************************/
 
-acpi_status
-acpi_get_firmware_table(acpi_string signature,
-			u32 instance,
-			u32 flags, struct acpi_table_header **table_pointer)
+acpi_status acpi_find_root_pointer(acpi_native_uint * table_address)
 {
-	acpi_status status;
-	struct acpi_pointer address;
-	struct acpi_table_header *header = NULL;
-	struct acpi_table_desc *table_info = NULL;
-	struct acpi_table_desc *rsdt_info;
-	u32 table_count;
-	u32 i;
-	u32 j;
-
-	ACPI_FUNCTION_TRACE(acpi_get_firmware_table);
-
-	/*
-	 * Ensure that at least the table manager is initialized.  We don't
-	 * require that the entire ACPI subsystem is up for this interface.
-	 * If we have a buffer, we must have a length too
-	 */
-	if ((instance == 0) || (!signature) || (!table_pointer)) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
-	/* Ensure that we have a RSDP */
-
-	if (!acpi_gbl_RSDP) {
-
-		/* Get the RSDP */
-
-		status = acpi_os_get_root_pointer(flags, &address);
-		if (ACPI_FAILURE(status)) {
-			ACPI_DEBUG_PRINT((ACPI_DB_INFO, "RSDP not found\n"));
-			return_ACPI_STATUS(AE_NO_ACPI_TABLES);
-		}
-
-		/* Map and validate the RSDP */
-
-		if ((flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING) {
-			status = acpi_os_map_memory(address.pointer.physical,
-						    sizeof(struct
-							   rsdp_descriptor),
-						    (void *)&acpi_gbl_RSDP);
-			if (ACPI_FAILURE(status)) {
-				return_ACPI_STATUS(status);
-			}
-		} else {
-			acpi_gbl_RSDP = address.pointer.logical;
-		}
-
-		/* The RDSP signature and checksum must both be correct */
-
-		status = acpi_tb_validate_rsdp(acpi_gbl_RSDP);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
-		}
-	}
-
-	/* Get the RSDT address via the RSDP */
-
-	acpi_tb_get_rsdt_address(&address);
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO,
-			  "RSDP located at %p, RSDT physical=%8.8X%8.8X\n",
-			  acpi_gbl_RSDP,
-			  ACPI_FORMAT_UINT64(address.pointer.value)));
+	u8 *table_ptr;
+	u8 *mem_rover;
+	u32 physical_address;
 
-	/* Insert processor_mode flags */
+	ACPI_FUNCTION_TRACE(acpi_find_root_pointer);
 
-	address.pointer_type |= flags;
+	/* 1a) Get the location of the Extended BIOS Data Area (EBDA) */
 
-	/* Get and validate the RSDT */
+	table_ptr = acpi_os_map_memory((acpi_physical_address)
+				       ACPI_EBDA_PTR_LOCATION,
+				       ACPI_EBDA_PTR_LENGTH);
+	if (!table_ptr) {
+		ACPI_ERROR((AE_INFO,
+			    "Could not map memory at %8.8X for length %X",
+			    ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH));
 
-	rsdt_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_table_desc));
-	if (!rsdt_info) {
 		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
 
-	status = acpi_tb_get_table(&address, rsdt_info);
-	if (ACPI_FAILURE(status)) {
-		goto cleanup;
-	}
-
-	status = acpi_tb_validate_rsdt(rsdt_info->pointer);
-	if (ACPI_FAILURE(status)) {
-		goto cleanup;
-	}
+	ACPI_MOVE_16_TO_32(&physical_address, table_ptr);
 
-	/* Allocate a scratch table header and table descriptor */
+	/* Convert segment part to physical address */
 
-	header = ACPI_ALLOCATE(sizeof(struct acpi_table_header));
-	if (!header) {
-		status = AE_NO_MEMORY;
-		goto cleanup;
-	}
+	physical_address <<= 4;
+	acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH);
 
-	table_info = ACPI_ALLOCATE(sizeof(struct acpi_table_desc));
-	if (!table_info) {
-		status = AE_NO_MEMORY;
-		goto cleanup;
-	}
+	/* EBDA present? */
 
-	/* Get the number of table pointers within the RSDT */
-
-	table_count =
-	    acpi_tb_get_table_count(acpi_gbl_RSDP, rsdt_info->pointer);
-	address.pointer_type = acpi_gbl_table_flags | flags;
-
-	/*
-	 * Search the RSDT/XSDT for the correct instance of the
-	 * requested table
-	 */
-	for (i = 0, j = 0; i < table_count; i++) {
+	if (physical_address > 0x400) {
 		/*
-		 * Get the next table pointer, handle RSDT vs. XSDT
-		 * RSDT pointers are 32 bits, XSDT pointers are 64 bits
+		 * 1b) Search EBDA paragraphs (EBDA is required to be a
+		 *     minimum of 1_k length)
 		 */
-		if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) {
-			address.pointer.value =
-			    (ACPI_CAST_PTR
-			     (struct rsdt_descriptor,
-			      rsdt_info->pointer))->table_offset_entry[i];
-		} else {
-			address.pointer.value =
-			    (ACPI_CAST_PTR
-			     (struct xsdt_descriptor,
-			      rsdt_info->pointer))->table_offset_entry[i];
-		}
-
-		/* Get the table header */
+		table_ptr = acpi_os_map_memory((acpi_native_uint)
+					       physical_address,
+					       ACPI_EBDA_WINDOW_SIZE);
+		if (!table_ptr) {
+			ACPI_ERROR((AE_INFO,
+				    "Could not map memory at %8.8X for length %X",
+				    physical_address, ACPI_EBDA_WINDOW_SIZE));
 
-		status = acpi_tb_get_table_header(&address, header);
-		if (ACPI_FAILURE(status)) {
-			goto cleanup;
+			return_ACPI_STATUS(AE_NO_MEMORY);
 		}
 
-		/* Compare table signatures and table instance */
-
-		if (ACPI_COMPARE_NAME(header->signature, signature)) {
-
-			/* An instance of the table was found */
+		mem_rover =
+		    acpi_tb_scan_memory_for_rsdp(table_ptr,
+						 ACPI_EBDA_WINDOW_SIZE);
+		acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE);
 
-			j++;
-			if (j >= instance) {
+		if (mem_rover) {
 
-				/* Found the correct instance, get the entire table */
+			/* Return the physical address */
 
-				status =
-				    acpi_tb_get_table_body(&address, header,
-							   table_info);
-				if (ACPI_FAILURE(status)) {
-					goto cleanup;
-				}
+			physical_address +=
+			    (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
 
-				*table_pointer = table_info->pointer;
-				goto cleanup;
-			}
+			*table_address = physical_address;
+			return_ACPI_STATUS(AE_OK);
 		}
 	}
 
-	/* Did not find the table */
+	/*
+	 * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh
+	 */
+	table_ptr = acpi_os_map_memory((acpi_physical_address)
+				       ACPI_HI_RSDP_WINDOW_BASE,
+				       ACPI_HI_RSDP_WINDOW_SIZE);
 
-	status = AE_NOT_EXIST;
+	if (!table_ptr) {
+		ACPI_ERROR((AE_INFO,
+			    "Could not map memory at %8.8X for length %X",
+			    ACPI_HI_RSDP_WINDOW_BASE,
+			    ACPI_HI_RSDP_WINDOW_SIZE));
 
-      cleanup:
-	if (rsdt_info->pointer) {
-		acpi_os_unmap_memory(rsdt_info->pointer,
-				     (acpi_size) rsdt_info->pointer->length);
+		return_ACPI_STATUS(AE_NO_MEMORY);
 	}
-	ACPI_FREE(rsdt_info);
 
-	if (header) {
-		ACPI_FREE(header);
-	}
-	if (table_info) {
-		ACPI_FREE(table_info);
-	}
-	return_ACPI_STATUS(status);
-}
+	mem_rover =
+	    acpi_tb_scan_memory_for_rsdp(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
+	acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
 
-ACPI_EXPORT_SYMBOL(acpi_get_firmware_table)
+	if (mem_rover) {
 
-/* TBD: Move to a new file */
-#if ACPI_MACHINE_WIDTH != 16
-/*******************************************************************************
- *
- * FUNCTION:    acpi_find_root_pointer
- *
- * PARAMETERS:  Flags                   - Logical/Physical addressing
- *              rsdp_address            - Where to place the RSDP address
- *
- * RETURN:      Status, Physical address of the RSDP
- *
- * DESCRIPTION: Find the RSDP
- *
- ******************************************************************************/
-acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address)
-{
-	struct acpi_table_desc table_info;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(acpi_find_root_pointer);
-
-	/* Get the RSDP */
+		/* Return the physical address */
 
-	status = acpi_tb_find_rsdp(&table_info, flags);
-	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status,
-				"RSDP structure not found - Flags=%X", flags));
+		physical_address = (u32)
+		    (ACPI_HI_RSDP_WINDOW_BASE +
+		     ACPI_PTR_DIFF(mem_rover, table_ptr));
 
-		return_ACPI_STATUS(AE_NO_ACPI_TABLES);
+		*table_address = physical_address;
+		return_ACPI_STATUS(AE_OK);
 	}
 
-	rsdp_address->pointer_type = ACPI_PHYSICAL_POINTER;
-	rsdp_address->pointer.physical = table_info.physical_address;
-	return_ACPI_STATUS(AE_OK);
+	/* A valid RSDP was not found */
+
+	ACPI_ERROR((AE_INFO, "A valid RSDP was not found"));
+	return_ACPI_STATUS(AE_NOT_FOUND);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_find_root_pointer)
@@ -440,7 +252,7 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
 
 		status =
 		    acpi_tb_validate_rsdp(ACPI_CAST_PTR
-					  (struct rsdp_descriptor, mem_rover));
+					  (struct acpi_table_rsdp, mem_rover));
 		if (ACPI_SUCCESS(status)) {
 
 			/* Sig and checksum valid, we have found a real RSDP */
@@ -461,189 +273,3 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
 			  start_address));
 	return_PTR(NULL);
 }
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_find_rsdp
- *
- * PARAMETERS:  table_info              - Where the table info is returned
- *              Flags                   - Current memory mode (logical vs.
- *                                        physical addressing)
- *
- * RETURN:      Status, RSDP physical address
- *
- * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor
- *              pointer structure.  If it is found, set *RSDP to point to it.
- *
- *              NOTE1: The RSDP must be either in the first 1_k of the Extended
- *              BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.)
- *              Only a 32-bit physical address is necessary.
- *
- *              NOTE2: This function is always available, regardless of the
- *              initialization state of the rest of ACPI.
- *
- ******************************************************************************/
-
-static acpi_status
-acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags)
-{
-	u8 *table_ptr;
-	u8 *mem_rover;
-	u32 physical_address;
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(tb_find_rsdp);
-
-	/*
-	 * Scan supports either logical addressing or physical addressing
-	 */
-	if ((flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING) {
-
-		/* 1a) Get the location of the Extended BIOS Data Area (EBDA) */
-
-		status = acpi_os_map_memory((acpi_physical_address)
-					    ACPI_EBDA_PTR_LOCATION,
-					    ACPI_EBDA_PTR_LENGTH,
-					    (void *)&table_ptr);
-		if (ACPI_FAILURE(status)) {
-			ACPI_ERROR((AE_INFO,
-				    "Could not map memory at %8.8X for length %X",
-				    ACPI_EBDA_PTR_LOCATION,
-				    ACPI_EBDA_PTR_LENGTH));
-
-			return_ACPI_STATUS(status);
-		}
-
-		ACPI_MOVE_16_TO_32(&physical_address, table_ptr);
-
-		/* Convert segment part to physical address */
-
-		physical_address <<= 4;
-		acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH);
-
-		/* EBDA present? */
-
-		if (physical_address > 0x400) {
-			/*
-			 * 1b) Search EBDA paragraphs (EBDA is required to be a
-			 *     minimum of 1_k length)
-			 */
-			status = acpi_os_map_memory((acpi_physical_address)
-						    physical_address,
-						    ACPI_EBDA_WINDOW_SIZE,
-						    (void *)&table_ptr);
-			if (ACPI_FAILURE(status)) {
-				ACPI_ERROR((AE_INFO,
-					    "Could not map memory at %8.8X for length %X",
-					    physical_address,
-					    ACPI_EBDA_WINDOW_SIZE));
-
-				return_ACPI_STATUS(status);
-			}
-
-			mem_rover = acpi_tb_scan_memory_for_rsdp(table_ptr,
-								 ACPI_EBDA_WINDOW_SIZE);
-			acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE);
-
-			if (mem_rover) {
-
-				/* Return the physical address */
-
-				physical_address +=
-				    (u32) ACPI_PTR_DIFF(mem_rover, table_ptr);
-
-				table_info->physical_address =
-				    (acpi_physical_address) physical_address;
-				return_ACPI_STATUS(AE_OK);
-			}
-		}
-
-		/*
-		 * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh
-		 */
-		status = acpi_os_map_memory((acpi_physical_address)
-					    ACPI_HI_RSDP_WINDOW_BASE,
-					    ACPI_HI_RSDP_WINDOW_SIZE,
-					    (void *)&table_ptr);
-
-		if (ACPI_FAILURE(status)) {
-			ACPI_ERROR((AE_INFO,
-				    "Could not map memory at %8.8X for length %X",
-				    ACPI_HI_RSDP_WINDOW_BASE,
-				    ACPI_HI_RSDP_WINDOW_SIZE));
-
-			return_ACPI_STATUS(status);
-		}
-
-		mem_rover =
-		    acpi_tb_scan_memory_for_rsdp(table_ptr,
-						 ACPI_HI_RSDP_WINDOW_SIZE);
-		acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE);
-
-		if (mem_rover) {
-
-			/* Return the physical address */
-
-			physical_address = (u32)
-			    (ACPI_HI_RSDP_WINDOW_BASE +
-			     ACPI_PTR_DIFF(mem_rover, table_ptr));
-
-			table_info->physical_address =
-			    (acpi_physical_address) physical_address;
-			return_ACPI_STATUS(AE_OK);
-		}
-	}
-
-	/*
-	 * Physical addressing
-	 */
-	else {
-		/* 1a) Get the location of the EBDA */
-
-		ACPI_MOVE_16_TO_32(&physical_address, ACPI_EBDA_PTR_LOCATION);
-		physical_address <<= 4;	/* Convert segment to physical address */
-
-		/* EBDA present? */
-
-		if (physical_address > 0x400) {
-			/*
-			 * 1b) Search EBDA paragraphs (EBDA is required to be a minimum of
-			 *     1_k length)
-			 */
-			mem_rover =
-			    acpi_tb_scan_memory_for_rsdp(ACPI_PHYSADDR_TO_PTR
-							 (physical_address),
-							 ACPI_EBDA_WINDOW_SIZE);
-			if (mem_rover) {
-
-				/* Return the physical address */
-
-				table_info->physical_address =
-				    ACPI_TO_INTEGER(mem_rover);
-				return_ACPI_STATUS(AE_OK);
-			}
-		}
-
-		/* 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh */
-
-		mem_rover =
-		    acpi_tb_scan_memory_for_rsdp(ACPI_PHYSADDR_TO_PTR
-						 (ACPI_HI_RSDP_WINDOW_BASE),
-						 ACPI_HI_RSDP_WINDOW_SIZE);
-		if (mem_rover) {
-
-			/* Found it, return the physical address */
-
-			table_info->physical_address =
-			    ACPI_TO_INTEGER(mem_rover);
-			return_ACPI_STATUS(AE_OK);
-		}
-	}
-
-	/* A valid RSDP was not found */
-
-	ACPI_ERROR((AE_INFO, "No valid RSDP was found"));
-	return_ACPI_STATUS(AE_NOT_FOUND);
-}
-
-#endif