Merge branch 'acpica'

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

12 files changed, 3280 insertions, 574 deletions

diff --git a/tools/power/acpi/Makefile b/tools/power/acpi/Makefile
index c2c0f20067a..7ac578019ea 100644
--- a/tools/power/acpi/Makefile
+++ b/tools/power/acpi/Makefile
@@ -68,7 +68,8 @@ WARNINGS += $(call cc-supports,-Wstrict-prototypes)
 WARNINGS += $(call cc-supports,-Wdeclaration-after-statement)
 
 KERNEL_INCLUDE := ../../../include
-CFLAGS += -D_LINUX -DDEFINE_ALTERNATE_TYPES -I$(KERNEL_INCLUDE)
+ACPICA_INCLUDE := ../../../drivers/acpi/acpica
+CFLAGS += -D_LINUX -I$(KERNEL_INCLUDE) -I$(ACPICA_INCLUDE)
 CFLAGS += $(WARNINGS)
 
 ifeq ($(strip $(V)),false)
@@ -92,10 +93,29 @@ endif
 # --- ACPIDUMP BEGIN ---
 
 vpath %.c \
-	tools/acpidump
+	../../../drivers/acpi/acpica\
+	tools/acpidump\
+	common\
+	os_specific/service_layers
+
+CFLAGS += -DACPI_DUMP_APP -Itools/acpidump
 
 DUMP_OBJS = \
-	acpidump.o
+	apdump.o\
+	apfiles.o\
+	apmain.o\
+	osunixdir.o\
+	osunixmap.o\
+	tbprint.o\
+	tbxfroot.o\
+	utbuffer.o\
+	utexcep.o\
+	utmath.o\
+	utstring.o\
+	utxferror.o\
+	oslinuxtbl.o\
+	cmfsize.o\
+	getopt.o
 
 DUMP_OBJS := $(addprefix $(OUTPUT)tools/acpidump/,$(DUMP_OBJS))
 
diff --git a/tools/power/acpi/common/cmfsize.c b/tools/power/acpi/common/cmfsize.c
new file mode 100644
index 00000000000..5140e5edae1
--- /dev/null
+++ b/tools/power/acpi/common/cmfsize.c
@@ -0,0 +1,101 @@
+/******************************************************************************
+ *
+ * Module Name: cfsize - Common get file size function
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acapps.h"
+#include <stdio.h>
+
+#define _COMPONENT          ACPI_TOOLS
+ACPI_MODULE_NAME("cmfsize")
+
+/*******************************************************************************
+ *
+ * FUNCTION:    cm_get_file_size
+ *
+ * PARAMETERS:  file                    - Open file descriptor
+ *
+ * RETURN:      File Size. On error, -1 (ACPI_UINT32_MAX)
+ *
+ * DESCRIPTION: Get the size of a file. Uses seek-to-EOF. File must be open.
+ *              Does not disturb the current file pointer. Uses perror for
+ *              error messages.
+ *
+ ******************************************************************************/
+u32 cm_get_file_size(FILE * file)
+{
+	long file_size;
+	long current_offset;
+
+	/* Save the current file pointer, seek to EOF to obtain file size */
+
+	current_offset = ftell(file);
+	if (current_offset < 0) {
+		goto offset_error;
+	}
+
+	if (fseek(file, 0, SEEK_END)) {
+		goto seek_error;
+	}
+
+	file_size = ftell(file);
+	if (file_size < 0) {
+		goto offset_error;
+	}
+
+	/* Restore original file pointer */
+
+	if (fseek(file, current_offset, SEEK_SET)) {
+		goto seek_error;
+	}
+
+	return ((u32)file_size);
+
+offset_error:
+	perror("Could not get file offset");
+	return (ACPI_UINT32_MAX);
+
+seek_error:
+	perror("Could not seek file");
+	return (ACPI_UINT32_MAX);
+}
diff --git a/tools/power/acpi/common/getopt.c b/tools/power/acpi/common/getopt.c
new file mode 100644
index 00000000000..a302f52e4fd
--- /dev/null
+++ b/tools/power/acpi/common/getopt.c
@@ -0,0 +1,239 @@
+/******************************************************************************
+ *
+ * Module Name: getopt
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+/*
+ * ACPICA getopt() implementation
+ *
+ * Option strings:
+ *    "f"       - Option has no arguments
+ *    "f:"      - Option requires an argument
+ *    "f^"      - Option has optional single-char sub-options
+ *    "f|"      - Option has required single-char sub-options
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acapps.h"
+
+#define ACPI_OPTION_ERROR(msg, badchar) \
+	if (acpi_gbl_opterr) {fprintf (stderr, "%s%c\n", msg, badchar);}
+
+int acpi_gbl_opterr = 1;
+int acpi_gbl_optind = 1;
+int acpi_gbl_sub_opt_char = 0;
+char *acpi_gbl_optarg;
+
+static int current_char_ptr = 1;
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_getopt_argument
+ *
+ * PARAMETERS:  argc, argv          - from main
+ *
+ * RETURN:      0 if an argument was found, -1 otherwise. Sets acpi_gbl_Optarg
+ *              to point to the next argument.
+ *
+ * DESCRIPTION: Get the next argument. Used to obtain arguments for the
+ *              two-character options after the original call to acpi_getopt.
+ *              Note: Either the argument starts at the next character after
+ *              the option, or it is pointed to by the next argv entry.
+ *              (After call to acpi_getopt, we need to backup to the previous
+ *              argv entry).
+ *
+ ******************************************************************************/
+
+int acpi_getopt_argument(int argc, char **argv)
+{
+	acpi_gbl_optind--;
+	current_char_ptr++;
+
+	if (argv[acpi_gbl_optind][(int)(current_char_ptr + 1)] != '\0') {
+		acpi_gbl_optarg =
+		    &argv[acpi_gbl_optind++][(int)(current_char_ptr + 1)];
+	} else if (++acpi_gbl_optind >= argc) {
+		ACPI_OPTION_ERROR("Option requires an argument: -", 'v');
+
+		current_char_ptr = 1;
+		return (-1);
+	} else {
+		acpi_gbl_optarg = argv[acpi_gbl_optind++];
+	}
+
+	current_char_ptr = 1;
+	return (0);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_getopt
+ *
+ * PARAMETERS:  argc, argv          - from main
+ *              opts                - options info list
+ *
+ * RETURN:      Option character or EOF
+ *
+ * DESCRIPTION: Get the next option
+ *
+ ******************************************************************************/
+
+int acpi_getopt(int argc, char **argv, char *opts)
+{
+	int current_char;
+	char *opts_ptr;
+
+	if (current_char_ptr == 1) {
+		if (acpi_gbl_optind >= argc ||
+		    argv[acpi_gbl_optind][0] != '-' ||
+		    argv[acpi_gbl_optind][1] == '\0') {
+			return (EOF);
+		} else if (strcmp(argv[acpi_gbl_optind], "--") == 0) {
+			acpi_gbl_optind++;
+			return (EOF);
+		}
+	}
+
+	/* Get the option */
+
+	current_char = argv[acpi_gbl_optind][current_char_ptr];
+
+	/* Make sure that the option is legal */
+
+	if (current_char == ':' ||
+	    (opts_ptr = strchr(opts, current_char)) == NULL) {
+		ACPI_OPTION_ERROR("Illegal option: -", current_char);
+
+		if (argv[acpi_gbl_optind][++current_char_ptr] == '\0') {
+			acpi_gbl_optind++;
+			current_char_ptr = 1;
+		}
+
+		return ('?');
+	}
+
+	/* Option requires an argument? */
+
+	if (*++opts_ptr == ':') {
+		if (argv[acpi_gbl_optind][(int)(current_char_ptr + 1)] != '\0') {
+			acpi_gbl_optarg =
+			    &argv[acpi_gbl_optind++][(int)
+						     (current_char_ptr + 1)];
+		} else if (++acpi_gbl_optind >= argc) {
+			ACPI_OPTION_ERROR("Option requires an argument: -",
+					  current_char);
+
+			current_char_ptr = 1;
+			return ('?');
+		} else {
+			acpi_gbl_optarg = argv[acpi_gbl_optind++];
+		}
+
+		current_char_ptr = 1;
+	}
+
+	/* Option has an optional argument? */
+
+	else if (*opts_ptr == '+') {
+		if (argv[acpi_gbl_optind][(int)(current_char_ptr + 1)] != '\0') {
+			acpi_gbl_optarg =
+			    &argv[acpi_gbl_optind++][(int)
+						     (current_char_ptr + 1)];
+		} else if (++acpi_gbl_optind >= argc) {
+			acpi_gbl_optarg = NULL;
+		} else {
+			acpi_gbl_optarg = argv[acpi_gbl_optind++];
+		}
+
+		current_char_ptr = 1;
+	}
+
+	/* Option has optional single-char arguments? */
+
+	else if (*opts_ptr == '^') {
+		if (argv[acpi_gbl_optind][(int)(current_char_ptr + 1)] != '\0') {
+			acpi_gbl_optarg =
+			    &argv[acpi_gbl_optind][(int)(current_char_ptr + 1)];
+		} else {
+			acpi_gbl_optarg = "^";
+		}
+
+		acpi_gbl_sub_opt_char = acpi_gbl_optarg[0];
+		acpi_gbl_optind++;
+		current_char_ptr = 1;
+	}
+
+	/* Option has a required single-char argument? */
+
+	else if (*opts_ptr == '|') {
+		if (argv[acpi_gbl_optind][(int)(current_char_ptr + 1)] != '\0') {
+			acpi_gbl_optarg =
+			    &argv[acpi_gbl_optind][(int)(current_char_ptr + 1)];
+		} else {
+			ACPI_OPTION_ERROR
+			    ("Option requires a single-character suboption: -",
+			     current_char);
+
+			current_char_ptr = 1;
+			return ('?');
+		}
+
+		acpi_gbl_sub_opt_char = acpi_gbl_optarg[0];
+		acpi_gbl_optind++;
+		current_char_ptr = 1;
+	}
+
+	/* Option with no arguments */
+
+	else {
+		if (argv[acpi_gbl_optind][++current_char_ptr] == '\0') {
+			current_char_ptr = 1;
+			acpi_gbl_optind++;
+		}
+
+		acpi_gbl_optarg = NULL;
+	}
+
+	return (current_char);
+}
diff --git a/tools/power/acpi/man/acpidump.8 b/tools/power/acpi/man/acpidump.8
index adfa99166e5..38f095d86b5 100644
--- a/tools/power/acpi/man/acpidump.8
+++ b/tools/power/acpi/man/acpidump.8
@@ -1,18 +1,64 @@
 .TH ACPIDUMP 8
 .SH NAME
-acpidump \- Dump system's ACPI tables to an ASCII file.
+acpidump \- dump a system's ACPI tables to an ASCII file
+
 .SH SYNOPSIS
-.ft B
-.B acpidump > acpidump.out
+.B acpidump
+.RI [ options ]
+.br
+
 .SH DESCRIPTION
-\fBacpidump \fP dumps the systems ACPI tables to an ASCII file
-appropriate for attaching to a bug report.
+.B acpidump
+dumps the systems ACPI tables to an ASCII file appropriate for
+attaching to a bug report.
 
 Subsequently, they can be processed by utilities in the ACPICA package.
-.SS Options
-no options worth worrying about.
-.PP
-.SH EXAMPLE
+
+.SH OPTIONS
+acpidump options are as follow:
+.TP
+.B Options
+.TP
+.B \-b
+Dump tables to binary files
+.TP
+.B \-c
+Dump customized tables
+.TP
+.B \-h \-?
+This help message
+.TP
+.B \-o <File>
+Redirect output to file
+.TP
+.B \-r <Address>
+Dump tables from specified RSDP
+.TP
+.B \-s
+Print table summaries only
+.TP
+.B \-v
+Display version information
+.TP
+.B \-z
+Verbose mode
+.TP
+.B Table Options
+.TP
+.B \-a <Address>
+Get table via a physical address
+.TP
+.B \-f <BinaryFile>
+Get table via a binary file
+.TP
+.B \-n <Signature>
+Get table via a name/signature
+.TP
+Invocation without parameters dumps all available tables
+.TP
+Multiple mixed instances of -a, -f, and -n are supported
+
+.SH EXAMPLES
 
 .nf
 # acpidump > acpidump.out
@@ -50,10 +96,25 @@ ACPICA: https://acpica.org/
 .ta
 .nf
 /dev/mem
+/sys/firmware/acpi/tables/*
 /sys/firmware/acpi/tables/dynamic/*
+/sys/firmware/efi/systab
 .fi
 
-.PP
 .SH AUTHOR
-.nf
-Written by Len Brown <len.brown@intel.com>
+.TP
+Original by:
+ Len Brown <len.brown@intel.com>
+.TP
+Written by:
+ Chao Guan <chao.guan@intel.com>
+.TP
+Updated by:
+ Bob Moore <robert.moore@intel.com>
+ Lv Zheng <lv.zheng@intel.com>
+
+.SH SEE ALSO
+\&\fIacpixtract\fR\|(8), \fIiasl\fR\|(8).
+
+.SH COPYRIGHT
+COPYRIGHT (c) 2013, Intel Corporation.
diff --git a/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
new file mode 100644
index 00000000000..28c52008e85
--- /dev/null
+++ b/tools/power/acpi/os_specific/service_layers/oslinuxtbl.c
@@ -0,0 +1,1329 @@
+/******************************************************************************
+ *
+ * Module Name: oslinuxtbl - Linux OSL for obtaining ACPI tables
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include "acpidump.h"
+
+#define _COMPONENT          ACPI_OS_SERVICES
+ACPI_MODULE_NAME("oslinuxtbl")
+
+#ifndef PATH_MAX
+#define PATH_MAX 256
+#endif
+/* List of information about obtained ACPI tables */
+typedef struct osl_table_info {
+	struct osl_table_info *next;
+	u32 instance;
+	char signature[ACPI_NAME_SIZE];
+
+} osl_table_info;
+
+/* Local prototypes */
+
+static acpi_status osl_table_initialize(void);
+
+static acpi_status
+osl_table_name_from_file(char *filename, char *signature, u32 *instance);
+
+static acpi_status osl_add_table_to_list(char *signature, u32 instance);
+
+static acpi_status
+osl_read_table_from_file(char *filename,
+			 acpi_size file_offset,
+			 char *signature, struct acpi_table_header **table);
+
+static acpi_status
+osl_map_table(acpi_size address,
+	      char *signature, struct acpi_table_header **table);
+
+static void osl_unmap_table(struct acpi_table_header *table);
+
+static acpi_physical_address osl_find_rsdp_via_efi(void);
+
+static acpi_status osl_load_rsdp(void);
+
+static acpi_status osl_list_customized_tables(char *directory);
+
+static acpi_status
+osl_get_customized_table(char *pathname,
+			 char *signature,
+			 u32 instance,
+			 struct acpi_table_header **table,
+			 acpi_physical_address * address);
+
+static acpi_status osl_list_bios_tables(void);
+
+static acpi_status
+osl_get_bios_table(char *signature,
+		   u32 instance,
+		   struct acpi_table_header **table,
+		   acpi_physical_address * address);
+
+static acpi_status osl_get_last_status(acpi_status default_status);
+
+/* File locations */
+
+#define DYNAMIC_TABLE_DIR   "/sys/firmware/acpi/tables/dynamic"
+#define STATIC_TABLE_DIR    "/sys/firmware/acpi/tables"
+#define EFI_SYSTAB          "/sys/firmware/efi/systab"
+
+/* Should we get dynamically loaded SSDTs from DYNAMIC_TABLE_DIR? */
+
+u8 gbl_dump_dynamic_tables = TRUE;
+
+/* Initialization flags */
+
+u8 gbl_table_list_initialized = FALSE;
+
+/* Local copies of main ACPI tables */
+
+struct acpi_table_rsdp gbl_rsdp;
+struct acpi_table_fadt *gbl_fadt = NULL;
+struct acpi_table_rsdt *gbl_rsdt = NULL;
+struct acpi_table_xsdt *gbl_xsdt = NULL;
+
+/* Table addresses */
+
+acpi_physical_address gbl_fadt_address = 0;
+acpi_physical_address gbl_rsdp_address = 0;
+
+/* Revision of RSD PTR */
+
+u8 gbl_revision = 0;
+
+struct osl_table_info *gbl_table_list_head = NULL;
+u32 gbl_table_count = 0;
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_get_last_status
+ *
+ * PARAMETERS:  default_status  - Default error status to return
+ *
+ * RETURN:      Status; Converted from errno.
+ *
+ * DESCRIPTION: Get last errno and conver it to acpi_status.
+ *
+ *****************************************************************************/
+
+static acpi_status osl_get_last_status(acpi_status default_status)
+{
+
+	switch (errno) {
+	case EACCES:
+	case EPERM:
+
+		return (AE_ACCESS);
+
+	case ENOENT:
+
+		return (AE_NOT_FOUND);
+
+	case ENOMEM:
+
+		return (AE_NO_MEMORY);
+
+	default:
+
+		return (default_status);
+	}
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_get_table_by_address
+ *
+ * PARAMETERS:  address         - Physical address of the ACPI table
+ *              table           - Where a pointer to the table is returned
+ *
+ * RETURN:      Status; Table buffer is returned if AE_OK.
+ *              AE_NOT_FOUND: A valid table was not found at the address
+ *
+ * DESCRIPTION: Get an ACPI table via a physical memory address.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_os_get_table_by_address(acpi_physical_address address,
+			     struct acpi_table_header ** table)
+{
+	u32 table_length;
+	struct acpi_table_header *mapped_table;
+	struct acpi_table_header *local_table = NULL;
+	acpi_status status = AE_OK;
+
+	/* Get main ACPI tables from memory on first invocation of this function */
+
+	status = osl_table_initialize();
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Map the table and validate it */
+
+	status = osl_map_table(address, NULL, &mapped_table);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Copy table to local buffer and return it */
+
+	table_length = ap_get_table_length(mapped_table);
+	if (table_length == 0) {
+		status = AE_BAD_HEADER;
+		goto exit;
+	}
+
+	local_table = calloc(1, table_length);
+	if (!local_table) {
+		status = AE_NO_MEMORY;
+		goto exit;
+	}
+
+	ACPI_MEMCPY(local_table, mapped_table, table_length);
+
+exit:
+	osl_unmap_table(mapped_table);
+	*table = local_table;
+	return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_get_table_by_name
+ *
+ * PARAMETERS:  signature       - ACPI Signature for desired table. Must be
+ *                                a null terminated 4-character string.
+ *              instance        - Multiple table support for SSDT/UEFI (0...n)
+ *                                Must be 0 for other tables.
+ *              table           - Where a pointer to the table is returned
+ *              address         - Where the table physical address is returned
+ *
+ * RETURN:      Status; Table buffer and physical address returned if AE_OK.
+ *              AE_LIMIT: Instance is beyond valid limit
+ *              AE_NOT_FOUND: A table with the signature was not found
+ *
+ * NOTE:        Assumes the input signature is uppercase.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_os_get_table_by_name(char *signature,
+			  u32 instance,
+			  struct acpi_table_header ** table,
+			  acpi_physical_address * address)
+{
+	acpi_status status;
+
+	/* Get main ACPI tables from memory on first invocation of this function */
+
+	status = osl_table_initialize();
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Not a main ACPI table, attempt to extract it from the RSDT/XSDT */
+
+	if (!gbl_dump_customized_tables) {
+
+		/* Attempt to get the table from the memory */
+
+		status =
+		    osl_get_bios_table(signature, instance, table, address);
+	} else {
+		/* Attempt to get the table from the static directory */
+
+		status = osl_get_customized_table(STATIC_TABLE_DIR, signature,
+						  instance, table, address);
+	}
+
+	if (ACPI_FAILURE(status) && status == AE_LIMIT) {
+		if (gbl_dump_dynamic_tables) {
+
+			/* Attempt to get a dynamic table */
+
+			status =
+			    osl_get_customized_table(DYNAMIC_TABLE_DIR,
+						     signature, instance, table,
+						     address);
+		}
+	}
+
+	return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_add_table_to_list
+ *
+ * PARAMETERS:  signature       - Table signature
+ *              instance        - Table instance
+ *
+ * RETURN:      Status; Successfully added if AE_OK.
+ *              AE_NO_MEMORY: Memory allocation error
+ *
+ * DESCRIPTION: Insert a table structure into OSL table list.
+ *
+ *****************************************************************************/
+
+static acpi_status osl_add_table_to_list(char *signature, u32 instance)
+{
+	struct osl_table_info *new_info;
+	struct osl_table_info *next;
+	u32 next_instance = 0;
+	u8 found = FALSE;
+
+	new_info = calloc(1, sizeof(struct osl_table_info));
+	if (!new_info) {
+		return (AE_NO_MEMORY);
+	}
+
+	ACPI_MOVE_NAME(new_info->signature, signature);
+
+	if (!gbl_table_list_head) {
+		gbl_table_list_head = new_info;
+	} else {
+		next = gbl_table_list_head;
+		while (1) {
+			if (ACPI_COMPARE_NAME(next->signature, signature)) {
+				if (next->instance == instance) {
+					found = TRUE;
+				}
+				if (next->instance >= next_instance) {
+					next_instance = next->instance + 1;
+				}
+			}
+
+			if (!next->next) {
+				break;
+			}
+			next = next->next;
+		}
+		next->next = new_info;
+	}
+
+	if (found) {
+		if (instance) {
+			fprintf(stderr,
+				"%4.4s: Warning unmatched table instance %d, expected %d\n",
+				signature, instance, next_instance);
+		}
+		instance = next_instance;
+	}
+
+	new_info->instance = instance;
+	gbl_table_count++;
+
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_get_table_by_index
+ *
+ * PARAMETERS:  index           - Which table to get
+ *              table           - Where a pointer to the table is returned
+ *              instance        - Where a pointer to the table instance no. is
+ *                                returned
+ *              address         - Where the table physical address is returned
+ *
+ * RETURN:      Status; Table buffer and physical address returned if AE_OK.
+ *              AE_LIMIT: Index is beyond valid limit
+ *
+ * DESCRIPTION: Get an ACPI table via an index value (0 through n). Returns
+ *              AE_LIMIT when an invalid index is reached. Index is not
+ *              necessarily an index into the RSDT/XSDT.
+ *
+ *****************************************************************************/
+
+acpi_status
+acpi_os_get_table_by_index(u32 index,
+			   struct acpi_table_header ** table,
+			   u32 *instance, acpi_physical_address * address)
+{
+	struct osl_table_info *info;
+	acpi_status status;
+	u32 i;
+
+	/* Get main ACPI tables from memory on first invocation of this function */
+
+	status = osl_table_initialize();
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Validate Index */
+
+	if (index >= gbl_table_count) {
+		return (AE_LIMIT);
+	}
+
+	/* Point to the table list entry specified by the Index argument */
+
+	info = gbl_table_list_head;
+	for (i = 0; i < index; i++) {
+		info = info->next;
+	}
+
+	/* Now we can just get the table via the signature */
+
+	status = acpi_os_get_table_by_name(info->signature, info->instance,
+					   table, address);
+
+	if (ACPI_SUCCESS(status)) {
+		*instance = info->instance;
+	}
+	return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_find_rsdp_via_efi
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      RSDP address if found
+ *
+ * DESCRIPTION: Find RSDP address via EFI.
+ *
+ *****************************************************************************/
+
+static acpi_physical_address osl_find_rsdp_via_efi(void)
+{
+	FILE *file;
+	char buffer[80];
+	unsigned long address = 0;
+
+	file = fopen(EFI_SYSTAB, "r");
+	if (file) {
+		while (fgets(buffer, 80, file)) {
+			if (sscanf(buffer, "ACPI20=0x%lx", &address) == 1) {
+				break;
+			}
+		}
+		fclose(file);
+	}
+
+	return ((acpi_physical_address) (address));
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_load_rsdp
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Scan and load RSDP.
+ *
+ *****************************************************************************/
+
+static acpi_status osl_load_rsdp(void)
+{
+	struct acpi_table_header *mapped_table;
+	u8 *rsdp_address;
+	acpi_physical_address rsdp_base;
+	acpi_size rsdp_size;
+
+	/* Get RSDP from memory */
+
+	rsdp_size = sizeof(struct acpi_table_rsdp);
+	if (gbl_rsdp_base) {
+		rsdp_base = gbl_rsdp_base;
+	} else {
+		rsdp_base = osl_find_rsdp_via_efi();
+	}
+
+	if (!rsdp_base) {
+		rsdp_base = ACPI_HI_RSDP_WINDOW_BASE;
+		rsdp_size = ACPI_HI_RSDP_WINDOW_SIZE;
+	}
+
+	rsdp_address = acpi_os_map_memory(rsdp_base, rsdp_size);
+	if (!rsdp_address) {
+		return (osl_get_last_status(AE_BAD_ADDRESS));
+	}
+
+	/* Search low memory for the RSDP */
+
+	mapped_table = ACPI_CAST_PTR(struct acpi_table_header,
+				     acpi_tb_scan_memory_for_rsdp(rsdp_address,
+								  rsdp_size));
+	if (!mapped_table) {
+		acpi_os_unmap_memory(rsdp_address, rsdp_size);
+		return (AE_NOT_FOUND);
+	}
+
+	gbl_rsdp_address =
+	    rsdp_base + (ACPI_CAST8(mapped_table) - rsdp_address);
+
+	ACPI_MEMCPY(&gbl_rsdp, mapped_table, sizeof(struct acpi_table_rsdp));
+	acpi_os_unmap_memory(rsdp_address, rsdp_size);
+
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_can_use_xsdt
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      TRUE if XSDT is allowed to be used.
+ *
+ * DESCRIPTION: This function collects logic that can be used to determine if
+ *              XSDT should be used instead of RSDT.
+ *
+ *****************************************************************************/
+
+static u8 osl_can_use_xsdt(void)
+{
+	if (gbl_revision && !acpi_gbl_do_not_use_xsdt) {
+		return (TRUE);
+	} else {
+		return (FALSE);
+	}
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_table_initialize
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initialize ACPI table data. Get and store main ACPI tables to
+ *              local variables. Main ACPI tables include RSDT, FADT, RSDT,
+ *              and/or XSDT.
+ *
+ *****************************************************************************/
+
+static acpi_status osl_table_initialize(void)
+{
+	acpi_status status;
+	acpi_physical_address address;
+
+	if (gbl_table_list_initialized) {
+		return (AE_OK);
+	}
+
+	/* Get RSDP from memory */
+
+	status = osl_load_rsdp();
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Get XSDT from memory */
+
+	if (gbl_rsdp.revision && !gbl_do_not_dump_xsdt) {
+		if (gbl_xsdt) {
+			free(gbl_xsdt);
+			gbl_xsdt = NULL;
+		}
+
+		gbl_revision = 2;
+		status = osl_get_bios_table(ACPI_SIG_XSDT, 0,
+					    ACPI_CAST_PTR(struct
+							  acpi_table_header *,
+							  &gbl_xsdt), &address);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+	}
+
+	/* Get RSDT from memory */
+
+	if (gbl_rsdp.rsdt_physical_address) {
+		if (gbl_rsdt) {
+			free(gbl_rsdt);
+			gbl_rsdt = NULL;
+		}
+
+		status = osl_get_bios_table(ACPI_SIG_RSDT, 0,
+					    ACPI_CAST_PTR(struct
+							  acpi_table_header *,
+							  &gbl_rsdt), &address);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+	}
+
+	/* Get FADT from memory */
+
+	if (gbl_fadt) {
+		free(gbl_fadt);
+		gbl_fadt = NULL;
+	}
+
+	status = osl_get_bios_table(ACPI_SIG_FADT, 0,
+				    ACPI_CAST_PTR(struct acpi_table_header *,
+						  &gbl_fadt),
+				    &gbl_fadt_address);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	if (!gbl_dump_customized_tables) {
+
+		/* Add mandatory tables to global table list first */
+
+		status = osl_add_table_to_list(ACPI_RSDP_NAME, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		status = osl_add_table_to_list(ACPI_SIG_RSDT, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		if (gbl_revision == 2) {
+			status = osl_add_table_to_list(ACPI_SIG_XSDT, 0);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+		}
+
+		status = osl_add_table_to_list(ACPI_SIG_DSDT, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		status = osl_add_table_to_list(ACPI_SIG_FACS, 0);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		/* Add all tables found in the memory */
+
+		status = osl_list_bios_tables();
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+	} else {
+		/* Add all tables found in the static directory */
+
+		status = osl_list_customized_tables(STATIC_TABLE_DIR);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+	}
+
+	if (gbl_dump_dynamic_tables) {
+
+		/* Add all dynamically loaded tables in the dynamic directory */
+
+		status = osl_list_customized_tables(DYNAMIC_TABLE_DIR);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+	}
+
+	gbl_table_list_initialized = TRUE;
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_list_bios_tables
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status; Table list is initialized if AE_OK.
+ *
+ * DESCRIPTION: Add ACPI tables to the table list from memory.
+ *
+ * NOTE:        This works on Linux as table customization does not modify the
+ *              addresses stored in RSDP/RSDT/XSDT/FADT.
+ *
+ *****************************************************************************/
+
+static acpi_status osl_list_bios_tables(void)
+{
+	struct acpi_table_header *mapped_table = NULL;
+	u8 *table_data;
+	u8 number_of_tables;
+	u8 item_size;
+	acpi_physical_address table_address = 0;
+	acpi_status status = AE_OK;
+	u32 i;
+
+	if (osl_can_use_xsdt()) {
+		item_size = sizeof(u64);
+		table_data =
+		    ACPI_CAST8(gbl_xsdt) + sizeof(struct acpi_table_header);
+		number_of_tables =
+		    (u8)((gbl_xsdt->header.length -
+			  sizeof(struct acpi_table_header))
+			 / item_size);
+	} else {		/* Use RSDT if XSDT is not available */
+
+		item_size = sizeof(u32);
+		table_data =
+		    ACPI_CAST8(gbl_rsdt) + sizeof(struct acpi_table_header);
+		number_of_tables =
+		    (u8)((gbl_rsdt->header.length -
+			  sizeof(struct acpi_table_header))
+			 / item_size);
+	}
+
+	/* Search RSDT/XSDT for the requested table */
+
+	for (i = 0; i < number_of_tables; ++i, table_data += item_size) {
+		if (osl_can_use_xsdt()) {
+			table_address =
+			    (acpi_physical_address) (*ACPI_CAST64(table_data));
+		} else {
+			table_address =
+			    (acpi_physical_address) (*ACPI_CAST32(table_data));
+		}
+
+		/* Skip NULL entries in RSDT/XSDT */
+
+		if (!table_address) {
+			continue;
+		}
+
+		status = osl_map_table(table_address, NULL, &mapped_table);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		osl_add_table_to_list(mapped_table->signature, 0);
+		osl_unmap_table(mapped_table);
+	}
+
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_get_bios_table
+ *
+ * PARAMETERS:  signature       - ACPI Signature for common table. Must be
+ *                                a null terminated 4-character string.
+ *              instance        - Multiple table support for SSDT/UEFI (0...n)
+ *                                Must be 0 for other tables.
+ *              table           - Where a pointer to the table is returned
+ *              address         - Where the table physical address is returned
+ *
+ * RETURN:      Status; Table buffer and physical address returned if AE_OK.
+ *              AE_LIMIT: Instance is beyond valid limit
+ *              AE_NOT_FOUND: A table with the signature was not found
+ *
+ * DESCRIPTION: Get a BIOS provided ACPI table
+ *
+ * NOTE:        Assumes the input signature is uppercase.
+ *
+ *****************************************************************************/
+
+static acpi_status
+osl_get_bios_table(char *signature,
+		   u32 instance,
+		   struct acpi_table_header **table,
+		   acpi_physical_address * address)
+{
+	struct acpi_table_header *local_table = NULL;
+	struct acpi_table_header *mapped_table = NULL;
+	u8 *table_data;
+	u8 number_of_tables;
+	u8 item_size;
+	u32 current_instance = 0;
+	acpi_physical_address table_address = 0;
+	u32 table_length = 0;
+	acpi_status status = AE_OK;
+	u32 i;
+
+	/* Handle special tables whose addresses are not in RSDT/XSDT */
+
+	if (ACPI_COMPARE_NAME(signature, ACPI_RSDP_NAME) ||
+	    ACPI_COMPARE_NAME(signature, ACPI_SIG_RSDT) ||
+	    ACPI_COMPARE_NAME(signature, ACPI_SIG_XSDT) ||
+	    ACPI_COMPARE_NAME(signature, ACPI_SIG_DSDT) ||
+	    ACPI_COMPARE_NAME(signature, ACPI_SIG_FACS)) {
+		if (instance > 0) {
+			return (AE_LIMIT);
+		}
+
+		/*
+		 * Get the appropriate address, either 32-bit or 64-bit. Be very
+		 * careful about the FADT length and validate table addresses.
+		 * Note: The 64-bit addresses have priority.
+		 */
+		if (ACPI_COMPARE_NAME(signature, ACPI_SIG_DSDT)) {
+			if ((gbl_fadt->header.length >= MIN_FADT_FOR_XDSDT) &&
+			    gbl_fadt->Xdsdt) {
+				table_address =
+				    (acpi_physical_address) gbl_fadt->Xdsdt;
+			} else
+			    if ((gbl_fadt->header.length >= MIN_FADT_FOR_DSDT)
+				&& gbl_fadt->dsdt) {
+				table_address =
+				    (acpi_physical_address) gbl_fadt->dsdt;
+			}
+		} else if (ACPI_COMPARE_NAME(signature, ACPI_SIG_FACS)) {
+			if ((gbl_fadt->header.length >= MIN_FADT_FOR_XFACS) &&
+			    gbl_fadt->Xfacs) {
+				table_address =
+				    (acpi_physical_address) gbl_fadt->Xfacs;
+			} else
+			    if ((gbl_fadt->header.length >= MIN_FADT_FOR_FACS)
+				&& gbl_fadt->facs) {
+				table_address =
+				    (acpi_physical_address) gbl_fadt->facs;
+			}
+		} else if (ACPI_COMPARE_NAME(signature, ACPI_SIG_XSDT)) {
+			if (!gbl_revision) {
+				return (AE_BAD_SIGNATURE);
+			}
+			table_address =
+			    (acpi_physical_address) gbl_rsdp.
+			    xsdt_physical_address;
+		} else if (ACPI_COMPARE_NAME(signature, ACPI_SIG_RSDT)) {
+			table_address =
+			    (acpi_physical_address) gbl_rsdp.
+			    rsdt_physical_address;
+		} else {
+			table_address =
+			    (acpi_physical_address) gbl_rsdp_address;
+			signature = ACPI_SIG_RSDP;
+		}
+
+		/* Now we can get the requested special table */
+
+		status = osl_map_table(table_address, signature, &mapped_table);
+		if (ACPI_FAILURE(status)) {
+			return (status);
+		}
+
+		table_length = ap_get_table_length(mapped_table);
+	} else {		/* Case for a normal ACPI table */
+
+		if (osl_can_use_xsdt()) {
+			item_size = sizeof(u64);
+			table_data =
+			    ACPI_CAST8(gbl_xsdt) +
+			    sizeof(struct acpi_table_header);
+			number_of_tables =
+			    (u8)((gbl_xsdt->header.length -
+				  sizeof(struct acpi_table_header))
+				 / item_size);
+		} else {	/* Use RSDT if XSDT is not available */
+
+			item_size = sizeof(u32);
+			table_data =
+			    ACPI_CAST8(gbl_rsdt) +
+			    sizeof(struct acpi_table_header);
+			number_of_tables =
+			    (u8)((gbl_rsdt->header.length -
+				  sizeof(struct acpi_table_header))
+				 / item_size);
+		}
+
+		/* Search RSDT/XSDT for the requested table */
+
+		for (i = 0; i < number_of_tables; ++i, table_data += item_size) {
+			if (osl_can_use_xsdt()) {
+				table_address =
+				    (acpi_physical_address) (*ACPI_CAST64
+							     (table_data));
+			} else {
+				table_address =
+				    (acpi_physical_address) (*ACPI_CAST32
+							     (table_data));
+			}
+
+			/* Skip NULL entries in RSDT/XSDT */
+
+			if (!table_address) {
+				continue;
+			}
+
+			status =
+			    osl_map_table(table_address, NULL, &mapped_table);
+			if (ACPI_FAILURE(status)) {
+				return (status);
+			}
+			table_length = mapped_table->length;
+
+			/* Does this table match the requested signature? */
+
+			if (!ACPI_COMPARE_NAME
+			    (mapped_table->signature, signature)) {
+				osl_unmap_table(mapped_table);
+				mapped_table = NULL;
+				continue;
+			}
+
+			/* Match table instance (for SSDT/UEFI tables) */
+
+			if (current_instance != instance) {
+				osl_unmap_table(mapped_table);
+				mapped_table = NULL;
+				current_instance++;
+				continue;
+			}
+
+			break;
+		}
+	}
+
+	if (!mapped_table) {
+		return (AE_LIMIT);
+	}
+
+	if (table_length == 0) {
+		status = AE_BAD_HEADER;
+		goto exit;
+	}
+
+	/* Copy table to local buffer and return it */
+
+	local_table = calloc(1, table_length);
+	if (!local_table) {
+		status = AE_NO_MEMORY;
+		goto exit;
+	}
+
+	ACPI_MEMCPY(local_table, mapped_table, table_length);
+	*address = table_address;
+	*table = local_table;
+
+exit:
+	osl_unmap_table(mapped_table);
+	return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_list_customized_tables
+ *
+ * PARAMETERS:  directory           - Directory that contains the tables
+ *
+ * RETURN:      Status; Table list is initialized if AE_OK.
+ *
+ * DESCRIPTION: Add ACPI tables to the table list from a directory.
+ *
+ *****************************************************************************/
+
+static acpi_status osl_list_customized_tables(char *directory)
+{
+	void *table_dir;
+	u32 instance;
+	char temp_name[ACPI_NAME_SIZE];
+	char *filename;
+	acpi_status status = AE_OK;
+
+	/* Open the requested directory */
+
+	table_dir = acpi_os_open_directory(directory, "*", REQUEST_FILE_ONLY);
+	if (!table_dir) {
+		return (osl_get_last_status(AE_NOT_FOUND));
+	}
+
+	/* Examine all entries in this directory */
+
+	while ((filename = acpi_os_get_next_filename(table_dir))) {
+
+		/* Extract table name and instance number */
+
+		status =
+		    osl_table_name_from_file(filename, temp_name, &instance);
+
+		/* Ignore meaningless files */
+
+		if (ACPI_FAILURE(status)) {
+			continue;
+		}
+
+		/* Add new info node to global table list */
+
+		status = osl_add_table_to_list(temp_name, instance);
+		if (ACPI_FAILURE(status)) {
+			break;
+		}
+	}
+
+	acpi_os_close_directory(table_dir);
+	return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_map_table
+ *
+ * PARAMETERS:  address             - Address of the table in memory
+ *              signature           - Optional ACPI Signature for desired table.
+ *                                    Null terminated 4-character string.
+ *              table               - Where a pointer to the mapped table is
+ *                                    returned
+ *
+ * RETURN:      Status; Mapped table is returned if AE_OK.
+ *              AE_NOT_FOUND: A valid table was not found at the address
+ *
+ * DESCRIPTION: Map entire ACPI table into caller's address space.
+ *
+ *****************************************************************************/
+
+static acpi_status
+osl_map_table(acpi_size address,
+	      char *signature, struct acpi_table_header **table)
+{
+	struct acpi_table_header *mapped_table;
+	u32 length;
+
+	if (!address) {
+		return (AE_BAD_ADDRESS);
+	}
+
+	/*
+	 * Map the header so we can get the table length.
+	 * Use sizeof (struct acpi_table_header) as:
+	 * 1. it is bigger than 24 to include RSDP->Length
+	 * 2. it is smaller than sizeof (struct acpi_table_rsdp)
+	 */
+	mapped_table =
+	    acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+	if (!mapped_table) {
+		fprintf(stderr, "Could not map table header at 0x%8.8X%8.8X\n",
+			ACPI_FORMAT_UINT64(address));
+		return (osl_get_last_status(AE_BAD_ADDRESS));
+	}
+
+	/* If specified, signature must match */
+
+	if (signature) {
+		if (ACPI_VALIDATE_RSDP_SIG(signature)) {
+			if (!ACPI_VALIDATE_RSDP_SIG(mapped_table->signature)) {
+				acpi_os_unmap_memory(mapped_table,
+						     sizeof(struct
+							    acpi_table_header));
+				return (AE_BAD_SIGNATURE);
+			}
+		} else
+		    if (!ACPI_COMPARE_NAME(signature, mapped_table->signature))
+		{
+			acpi_os_unmap_memory(mapped_table,
+					     sizeof(struct acpi_table_header));
+			return (AE_BAD_SIGNATURE);
+		}
+	}
+
+	/* Map the entire table */
+
+	length = ap_get_table_length(mapped_table);
+	acpi_os_unmap_memory(mapped_table, sizeof(struct acpi_table_header));
+	if (length == 0) {
+		return (AE_BAD_HEADER);
+	}
+
+	mapped_table = acpi_os_map_memory(address, length);
+	if (!mapped_table) {
+		fprintf(stderr,
+			"Could not map table at 0x%8.8X%8.8X length %8.8X\n",
+			ACPI_FORMAT_UINT64(address), length);
+		return (osl_get_last_status(AE_INVALID_TABLE_LENGTH));
+	}
+
+	(void)ap_is_valid_checksum(mapped_table);
+
+	*table = mapped_table;
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_unmap_table
+ *
+ * PARAMETERS:  table               - A pointer to the mapped table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Unmap entire ACPI table.
+ *
+ *****************************************************************************/
+
+static void osl_unmap_table(struct acpi_table_header *table)
+{
+	if (table) {
+		acpi_os_unmap_memory(table, ap_get_table_length(table));
+	}
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_table_name_from_file
+ *
+ * PARAMETERS:  filename            - File that contains the desired table
+ *              signature           - Pointer to 4-character buffer to store
+ *                                    extracted table signature.
+ *              instance            - Pointer to integer to store extracted
+ *                                    table instance number.
+ *
+ * RETURN:      Status; Table name is extracted if AE_OK.
+ *
+ * DESCRIPTION: Extract table signature and instance number from a table file
+ *              name.
+ *
+ *****************************************************************************/
+
+static acpi_status
+osl_table_name_from_file(char *filename, char *signature, u32 *instance)
+{
+
+	/* Ignore meaningless files */
+
+	if (strlen(filename) < ACPI_NAME_SIZE) {
+		return (AE_BAD_SIGNATURE);
+	}
+
+	/* Extract instance number */
+
+	if (isdigit((int)filename[ACPI_NAME_SIZE])) {
+		sscanf(&filename[ACPI_NAME_SIZE], "%d", instance);
+	} else if (strlen(filename) != ACPI_NAME_SIZE) {
+		return (AE_BAD_SIGNATURE);
+	} else {
+		*instance = 0;
+	}
+
+	/* Extract signature */
+
+	ACPI_MOVE_NAME(signature, filename);
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_read_table_from_file
+ *
+ * PARAMETERS:  filename            - File that contains the desired table
+ *              file_offset         - Offset of the table in file
+ *              signature           - Optional ACPI Signature for desired table.
+ *                                    A null terminated 4-character string.
+ *              table               - Where a pointer to the table is returned
+ *
+ * RETURN:      Status; Table buffer is returned if AE_OK.
+ *
+ * DESCRIPTION: Read a ACPI table from a file.
+ *
+ *****************************************************************************/
+
+static acpi_status
+osl_read_table_from_file(char *filename,
+			 acpi_size file_offset,
+			 char *signature, struct acpi_table_header **table)
+{
+	FILE *table_file;
+	struct acpi_table_header header;
+	struct acpi_table_header *local_table = NULL;
+	u32 table_length;
+	s32 count;
+	acpi_status status = AE_OK;
+
+	/* Open the file */
+
+	table_file = fopen(filename, "rb");
+	if (table_file == NULL) {
+		fprintf(stderr, "Could not open table file: %s\n", filename);
+		return (osl_get_last_status(AE_NOT_FOUND));
+	}
+
+	fseek(table_file, file_offset, SEEK_SET);
+
+	/* Read the Table header to get the table length */
+
+	count = fread(&header, 1, sizeof(struct acpi_table_header), table_file);
+	if (count != sizeof(struct acpi_table_header)) {
+		fprintf(stderr, "Could not read table header: %s\n", filename);
+		status = AE_BAD_HEADER;
+		goto exit;
+	}
+
+	/* If signature is specified, it must match the table */
+
+	if (signature) {
+		if (ACPI_VALIDATE_RSDP_SIG(signature)) {
+			if (!ACPI_VALIDATE_RSDP_SIG(header.signature)) {
+				fprintf(stderr,
+					"Incorrect RSDP signature: found %8.8s\n",
+					header.signature);
+				status = AE_BAD_SIGNATURE;
+				goto exit;
+			}
+		} else if (!ACPI_COMPARE_NAME(signature, header.signature)) {
+			fprintf(stderr,
+				"Incorrect signature: Expecting %4.4s, found %4.4s\n",
+				signature, header.signature);
+			status = AE_BAD_SIGNATURE;
+			goto exit;
+		}
+	}
+
+	table_length = ap_get_table_length(&header);
+	if (table_length == 0) {
+		status = AE_BAD_HEADER;
+		goto exit;
+	}
+
+	/* Read the entire table into a local buffer */
+
+	local_table = calloc(1, table_length);
+	if (!local_table) {
+		fprintf(stderr,
+			"%4.4s: Could not allocate buffer for table of length %X\n",
+			header.signature, table_length);
+		status = AE_NO_MEMORY;
+		goto exit;
+	}
+
+	fseek(table_file, file_offset, SEEK_SET);
+
+	count = fread(local_table, 1, table_length, table_file);
+	if (count != table_length) {
+		fprintf(stderr, "%4.4s: Could not read table content\n",
+			header.signature);
+		status = AE_INVALID_TABLE_LENGTH;
+		goto exit;
+	}
+
+	/* Validate checksum */
+
+	(void)ap_is_valid_checksum(local_table);
+
+exit:
+	fclose(table_file);
+	*table = local_table;
+	return (status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    osl_get_customized_table
+ *
+ * PARAMETERS:  pathname        - Directory to find Linux customized table
+ *              signature       - ACPI Signature for desired table. Must be
+ *                                a null terminated 4-character string.
+ *              instance        - Multiple table support for SSDT/UEFI (0...n)
+ *                                Must be 0 for other tables.
+ *              table           - Where a pointer to the table is returned
+ *              address         - Where the table physical address is returned
+ *
+ * RETURN:      Status; Table buffer is returned if AE_OK.
+ *              AE_LIMIT: Instance is beyond valid limit
+ *              AE_NOT_FOUND: A table with the signature was not found
+ *
+ * DESCRIPTION: Get an OS customized table.
+ *
+ *****************************************************************************/
+
+static acpi_status
+osl_get_customized_table(char *pathname,
+			 char *signature,
+			 u32 instance,
+			 struct acpi_table_header **table,
+			 acpi_physical_address * address)
+{
+	void *table_dir;
+	u32 current_instance = 0;
+	char temp_name[ACPI_NAME_SIZE];
+	char table_filename[PATH_MAX];
+	char *filename;
+	acpi_status status;
+
+	/* Open the directory for customized tables */
+
+	table_dir = acpi_os_open_directory(pathname, "*", REQUEST_FILE_ONLY);
+	if (!table_dir) {
+		return (osl_get_last_status(AE_NOT_FOUND));
+	}
+
+	/* Attempt to find the table in the directory */
+
+	while ((filename = acpi_os_get_next_filename(table_dir))) {
+
+		/* Ignore meaningless files */
+
+		if (!ACPI_COMPARE_NAME(filename, signature)) {
+			continue;
+		}
+
+		/* Extract table name and instance number */
+
+		status =
+		    osl_table_name_from_file(filename, temp_name,
+					     &current_instance);
+
+		/* Ignore meaningless files */
+
+		if (ACPI_FAILURE(status) || current_instance != instance) {
+			continue;
+		}
+
+		/* Create the table pathname */
+
+		if (instance != 0) {
+			sprintf(table_filename, "%s/%4.4s%d", pathname,
+				temp_name, instance);
+		} else {
+			sprintf(table_filename, "%s/%4.4s", pathname,
+				temp_name);
+		}
+		break;
+	}
+
+	acpi_os_close_directory(table_dir);
+
+	if (!filename) {
+		return (AE_LIMIT);
+	}
+
+	/* There is no physical address saved for customized tables, use zero */
+
+	*address = 0;
+	status = osl_read_table_from_file(table_filename, 0, NULL, table);
+
+	return (status);
+}
diff --git a/tools/power/acpi/os_specific/service_layers/osunixdir.c b/tools/power/acpi/os_specific/service_layers/osunixdir.c
new file mode 100644
index 00000000000..733f9e490fc
--- /dev/null
+++ b/tools/power/acpi/os_specific/service_layers/osunixdir.c
@@ -0,0 +1,204 @@
+/******************************************************************************
+ *
+ * Module Name: osunixdir - Unix directory access interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <fnmatch.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+/*
+ * Allocated structure returned from os_open_directory
+ */
+typedef struct external_find_info {
+	char *dir_pathname;
+	DIR *dir_ptr;
+	char temp_buffer[256];
+	char *wildcard_spec;
+	char requested_file_type;
+
+} external_find_info;
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_os_open_directory
+ *
+ * PARAMETERS:  dir_pathname        - Full pathname to the directory
+ *              wildcard_spec       - string of the form "*.c", etc.
+ *
+ * RETURN:      A directory "handle" to be used in subsequent search operations.
+ *              NULL returned on failure.
+ *
+ * DESCRIPTION: Open a directory in preparation for a wildcard search
+ *
+ ******************************************************************************/
+
+void *acpi_os_open_directory(char *dir_pathname,
+			     char *wildcard_spec, char requested_file_type)
+{
+	struct external_find_info *external_info;
+	DIR *dir;
+
+	/* Allocate the info struct that will be returned to the caller */
+
+	external_info = calloc(1, sizeof(struct external_find_info));
+	if (!external_info) {
+		return (NULL);
+	}
+
+	/* Get the directory stream */
+
+	dir = opendir(dir_pathname);
+	if (!dir) {
+		fprintf(stderr, "Cannot open directory - %s\n", dir_pathname);
+		free(external_info);
+		return (NULL);
+	}
+
+	/* Save the info in the return structure */
+
+	external_info->wildcard_spec = wildcard_spec;
+	external_info->requested_file_type = requested_file_type;
+	external_info->dir_pathname = dir_pathname;
+	external_info->dir_ptr = dir;
+	return (external_info);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_os_get_next_filename
+ *
+ * PARAMETERS:  dir_handle          - Created via acpi_os_open_directory
+ *
+ * RETURN:      Next filename matched. NULL if no more matches.
+ *
+ * DESCRIPTION: Get the next file in the directory that matches the wildcard
+ *              specification.
+ *
+ ******************************************************************************/
+
+char *acpi_os_get_next_filename(void *dir_handle)
+{
+	struct external_find_info *external_info = dir_handle;
+	struct dirent *dir_entry;
+	char *temp_str;
+	int str_len;
+	struct stat temp_stat;
+	int err;
+
+	while ((dir_entry = readdir(external_info->dir_ptr))) {
+		if (!fnmatch
+		    (external_info->wildcard_spec, dir_entry->d_name, 0)) {
+			if (dir_entry->d_name[0] == '.') {
+				continue;
+			}
+
+			str_len = strlen(dir_entry->d_name) +
+			    strlen(external_info->dir_pathname) + 2;
+
+			temp_str = calloc(str_len, 1);
+			if (!temp_str) {
+				fprintf(stderr,
+					"Could not allocate buffer for temporary string\n");
+				return (NULL);
+			}
+
+			strcpy(temp_str, external_info->dir_pathname);
+			strcat(temp_str, "/");
+			strcat(temp_str, dir_entry->d_name);
+
+			err = stat(temp_str, &temp_stat);
+			if (err == -1) {
+				fprintf(stderr,
+					"Cannot stat file (should not happen) - %s\n",
+					temp_str);
+				free(temp_str);
+				return (NULL);
+			}
+
+			free(temp_str);
+
+			if ((S_ISDIR(temp_stat.st_mode)
+			     && (external_info->requested_file_type ==
+				 REQUEST_DIR_ONLY))
+			    || ((!S_ISDIR(temp_stat.st_mode)
+				 && external_info->requested_file_type ==
+				 REQUEST_FILE_ONLY))) {
+
+				/* copy to a temp buffer because dir_entry struct is on the stack */
+
+				strcpy(external_info->temp_buffer,
+				       dir_entry->d_name);
+				return (external_info->temp_buffer);
+			}
+		}
+	}
+
+	return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_os_close_directory
+ *
+ * PARAMETERS:  dir_handle          - Created via acpi_os_open_directory
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Close the open directory and cleanup.
+ *
+ ******************************************************************************/
+
+void acpi_os_close_directory(void *dir_handle)
+{
+	struct external_find_info *external_info = dir_handle;
+
+	/* Close the directory and free allocations */
+
+	closedir(external_info->dir_ptr);
+	free(dir_handle);
+}
diff --git a/tools/power/acpi/os_specific/service_layers/osunixmap.c b/tools/power/acpi/os_specific/service_layers/osunixmap.c
new file mode 100644
index 00000000000..99b47b6194a
--- /dev/null
+++ b/tools/power/acpi/os_specific/service_layers/osunixmap.c
@@ -0,0 +1,151 @@
+/******************************************************************************
+ *
+ * Module Name: osunixmap - Unix OSL for file mappings
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include "acpidump.h"
+#include <unistd.h>
+#include <sys/mman.h>
+#ifdef _free_BSD
+#include <sys/param.h>
+#endif
+
+#define _COMPONENT          ACPI_OS_SERVICES
+ACPI_MODULE_NAME("osunixmap")
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+#ifdef _free_BSD
+#define MMAP_FLAGS          MAP_SHARED
+#else
+#define MMAP_FLAGS          MAP_PRIVATE
+#endif
+#define SYSTEM_MEMORY       "/dev/mem"
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_os_get_page_size
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Page size of the platform.
+ *
+ * DESCRIPTION: Obtain page size of the platform.
+ *
+ ******************************************************************************/
+static acpi_size acpi_os_get_page_size(void)
+{
+
+#ifdef PAGE_SIZE
+	return PAGE_SIZE;
+#else
+	return sysconf(_SC_PAGESIZE);
+#endif
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_map_memory
+ *
+ * PARAMETERS:  where               - Physical address of memory to be mapped
+ *              length              - How much memory to map
+ *
+ * RETURN:      Pointer to mapped memory. Null on error.
+ *
+ * DESCRIPTION: Map physical memory into local address space.
+ *
+ *****************************************************************************/
+
+void *acpi_os_map_memory(acpi_physical_address where, acpi_size length)
+{
+	u8 *mapped_memory;
+	acpi_physical_address offset;
+	acpi_size page_size;
+	int fd;
+
+	fd = open(SYSTEM_MEMORY, O_RDONLY | O_BINARY);
+	if (fd < 0) {
+		fprintf(stderr, "Cannot open %s\n", SYSTEM_MEMORY);
+		return (NULL);
+	}
+
+	/* Align the offset to use mmap */
+
+	page_size = acpi_os_get_page_size();
+	offset = where % page_size;
+
+	/* Map the table header to get the length of the full table */
+
+	mapped_memory = mmap(NULL, (length + offset), PROT_READ, MMAP_FLAGS,
+			     fd, (where - offset));
+	if (mapped_memory == MAP_FAILED) {
+		fprintf(stderr, "Cannot map %s\n", SYSTEM_MEMORY);
+		close(fd);
+		return (NULL);
+	}
+
+	close(fd);
+	return (ACPI_CAST8(mapped_memory + offset));
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os_unmap_memory
+ *
+ * PARAMETERS:  where               - Logical address of memory to be unmapped
+ *              length              - How much memory to unmap
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Delete a previously created mapping. Where and Length must
+ *              correspond to a previous mapping exactly.
+ *
+ *****************************************************************************/
+
+void acpi_os_unmap_memory(void *where, acpi_size length)
+{
+	acpi_physical_address offset;
+	acpi_size page_size;
+
+	page_size = acpi_os_get_page_size();
+	offset = (acpi_physical_address) where % page_size;
+	munmap((u8 *)where - offset, (length + offset));
+}
diff --git a/tools/power/acpi/tools/acpidump/acpidump.c b/tools/power/acpi/tools/acpidump/acpidump.c
deleted file mode 100644
index a84553a0e0d..00000000000
--- a/tools/power/acpi/tools/acpidump/acpidump.c
+++ /dev/null
@@ -1,559 +0,0 @@
-/*
- * (c) Alexey Starikovskiy, Intel, 2005-2006.
- * 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.
- */
-
-#ifdef DEFINE_ALTERNATE_TYPES
-/* hack to enable building old application with new headers -lenb */
-#define acpi_fadt_descriptor acpi_table_fadt
-#define acpi_rsdp_descriptor acpi_table_rsdp
-#define DSDT_SIG ACPI_SIG_DSDT
-#define FACS_SIG ACPI_SIG_FACS
-#define FADT_SIG ACPI_SIG_FADT
-#define xfirmware_ctrl Xfacs
-#define firmware_ctrl facs
-
-typedef int				s32;
-typedef unsigned char			u8;
-typedef unsigned short			u16;
-typedef unsigned int			u32;
-typedef unsigned long long		u64;
-typedef long long			s64;
-#endif
-
-#include <sys/mman.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-#include <getopt.h>
-
-#include <dirent.h>
-
-#include <acpi/acconfig.h>
-#include <acpi/platform/acenv.h>
-#include <acpi/actypes.h>
-#include <acpi/actbl.h>
-
-static inline u8 checksum(u8 * buffer, u32 length)
-{
-	u8 sum = 0, *i = buffer;
-	buffer += length;
-	for (; i < buffer; sum += *(i++));
-	return sum;
-}
-
-static unsigned long psz, addr, length;
-static int print, connect, skip;
-static u8 select_sig[4];
-
-static unsigned long read_efi_systab( void )
-{
-	char buffer[80];
-	unsigned long addr;
-	FILE *f = fopen("/sys/firmware/efi/systab", "r");
-	if (f) {
-		while (fgets(buffer, 80, f)) {
-			if (sscanf(buffer, "ACPI20=0x%lx", &addr) == 1)
-				return addr;
-		}
-		fclose(f);
-	}
-	return 0;
-}
-
-static u8 *acpi_map_memory(unsigned long where, unsigned length)
-{
-	unsigned long offset;
-	u8 *there;
-	int fd = open("/dev/mem", O_RDONLY);
-	if (fd < 0) {
-		fprintf(stderr, "acpi_os_map_memory: cannot open /dev/mem\n");
-		exit(1);
-	}
-	offset = where % psz;
-	there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE,
-			 fd, where - offset);
-	close(fd);
-	if (there == MAP_FAILED) return 0;
-	return (there + offset);
-}
-
-static void acpi_unmap_memory(u8 * there, unsigned length)
-{
-	unsigned long offset = (unsigned long)there % psz;
-	munmap(there - offset, length + offset);
-}
-
-static struct acpi_table_header *acpi_map_table(unsigned long where, char *sig)
-{
-	unsigned size;
-	struct acpi_table_header *tbl = (struct acpi_table_header *)
-	    acpi_map_memory(where, sizeof(struct acpi_table_header));
-	if (!tbl || (sig && memcmp(sig, tbl->signature, 4))) return 0;
-	size = tbl->length;
-	acpi_unmap_memory((u8 *) tbl, sizeof(struct acpi_table_header));
-	return (struct acpi_table_header *)acpi_map_memory(where, size);
-}
-
-static void acpi_unmap_table(struct acpi_table_header *tbl)
-{
-	acpi_unmap_memory((u8 *)tbl, tbl->length);
-}
-
-static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length)
-{
-	struct acpi_rsdp_descriptor *rsdp;
-	u8 *i, *end = begin + length;
-	/* Search from given start address for the requested length */
-	for (i = begin; i < end; i += ACPI_RSDP_SCAN_STEP) {
-		/* The signature and checksum must both be correct */
-		if (memcmp((char *)i, "RSD PTR ", 8)) continue;
-		rsdp = (struct acpi_rsdp_descriptor *)i;
-		/* Signature matches, check the appropriate checksum */
-		if (!checksum((u8 *) rsdp, (rsdp->revision < 2) ?
-			      ACPI_RSDP_CHECKSUM_LENGTH :
-			      ACPI_RSDP_XCHECKSUM_LENGTH))
-			/* Checksum valid, we have found a valid RSDP */
-			return rsdp;
-	}
-	/* Searched entire block, no RSDP was found */
-	return 0;
-}
-
-/*
- * Output data
- */
-static void acpi_show_data(int fd, u8 * data, int size)
-{
-	char buffer[256];
-	int len;
-	int i, remain = size;
-	while (remain > 0) {
-		len = snprintf(buffer, 256, "  %04x:", size - remain);
-		for (i = 0; i < 16 && i < remain; i++) {
-			len +=
-			    snprintf(&buffer[len], 256 - len, " %02x", data[i]);
-		}
-		for (; i < 16; i++) {
-			len += snprintf(&buffer[len], 256 - len, "   ");
-		}
-		len += snprintf(&buffer[len], 256 - len, "  ");
-		for (i = 0; i < 16 && i < remain; i++) {
-			buffer[len++] = (isprint(data[i])) ? data[i] : '.';
-		}
-		buffer[len++] = '\n';
-		write(fd, buffer, len);
-		data += 16;
-		remain -= 16;
-	}
-}
-
-/*
- * Output ACPI table
- */
-static void acpi_show_table(int fd, struct acpi_table_header *table, unsigned long addr)
-{
-	char buff[80];
-	int len = snprintf(buff, 80, "%.4s @ %p\n", table->signature, (void *)addr);
-	write(fd, buff, len);
-	acpi_show_data(fd, (u8 *) table, table->length);
-	buff[0] = '\n';
-	write(fd, buff, 1);
-}
-
-static void write_table(int fd, struct acpi_table_header *tbl, unsigned long addr)
-{
-	static int select_done = 0;
-	if (!select_sig[0]) {
-		if (print) {
-			acpi_show_table(fd, tbl, addr);
-		} else {
-			write(fd, tbl, tbl->length);
-		}
-	} else if (!select_done && !memcmp(select_sig, tbl->signature, 4)) {
-		if (skip > 0) {
-			--skip;
-			return;
-		}
-		if (print) {
-			acpi_show_table(fd, tbl, addr);
-		} else {
-			write(fd, tbl, tbl->length);
-		}
-		select_done = 1;
-	}
-}
-
-static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long xaddr) {
-	struct acpi_fadt_descriptor x;
-	unsigned long addr;
-	size_t len = sizeof(struct acpi_fadt_descriptor);
-	if (len > tbl->length) len = tbl->length;
-	memcpy(&x, tbl, len);
-	x.header.length = len;
-	if (checksum((u8 *)tbl, len)) {
-		fprintf(stderr, "Wrong checksum for FADT!\n");
-	}
-	if (x.header.length >= 148 && x.Xdsdt) {
-		addr = (unsigned long)x.Xdsdt;
-		if (connect) {
-			x.Xdsdt = lseek(fd, 0, SEEK_CUR);
-		}
-	} else if (x.header.length >= 44 && x.dsdt) {
-		addr = (unsigned long)x.dsdt;
-		if (connect) {
-			x.dsdt = lseek(fd, 0, SEEK_CUR);
-		}
-	} else {
-		fprintf(stderr, "No DSDT in FADT!\n");
-		goto no_dsdt;
-	}
-	tbl = acpi_map_table(addr, DSDT_SIG);
-	if (!tbl) goto no_dsdt;
-	if (checksum((u8 *)tbl, tbl->length))
-		fprintf(stderr, "Wrong checksum for DSDT!\n");
-	write_table(fd, tbl, addr);
-	acpi_unmap_table(tbl);
-no_dsdt:
-	if (x.header.length >= 140 && x.xfirmware_ctrl) {
-		addr = (unsigned long)x.xfirmware_ctrl;
-		if (connect) {
-			x.xfirmware_ctrl = lseek(fd, 0, SEEK_CUR);
-		}
-	} else if (x.header.length >= 40 && x.firmware_ctrl) {
-		addr = (unsigned long)x.firmware_ctrl;
-		if (connect) {
-			x.firmware_ctrl = lseek(fd, 0, SEEK_CUR);
-		}
-	} else {
-		fprintf(stderr, "No FACS in FADT!\n");
-		goto no_facs;
-	}
-	tbl = acpi_map_table(addr, FACS_SIG);
-	if (!tbl) goto no_facs;
-	/* do not checksum FACS */
-	write_table(fd, tbl, addr);
-	acpi_unmap_table(tbl);
-no_facs:
-	write_table(fd, (struct acpi_table_header *)&x, xaddr);
-}
-
-static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp)
-{
-	struct acpi_table_header *sdt, *tbl = 0;
-	int xsdt = 1, i, num;
-	char *offset;
-	unsigned long addr;
-	if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
-		tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT");
-	}
-	if (!tbl && rsdp->rsdt_physical_address) {
-		xsdt = 0;
-		tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT");
-	}
-	if (!tbl) return 0;
-	sdt = malloc(tbl->length);
-	memcpy(sdt, tbl, tbl->length);
-	acpi_unmap_table(tbl);
-	if (checksum((u8 *)sdt, sdt->length))
-		fprintf(stderr, "Wrong checksum for %s!\n", (xsdt)?"XSDT":"RSDT");
-	num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32));
-	offset = (char *)sdt + sizeof(struct acpi_table_header);
-	for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) {
-		addr = (xsdt) ? (unsigned long)(*(u64 *)offset):
-				(unsigned long)(*(u32 *)offset);
-		if (!addr) continue;
-		tbl = acpi_map_table(addr, 0);
-		if (!tbl) continue;
-		if (!memcmp(tbl->signature, FADT_SIG, 4)) {
-			acpi_dump_FADT(fd, tbl, addr);
-		} else {
-			if (checksum((u8 *)tbl, tbl->length))
-				fprintf(stderr, "Wrong checksum for generic table!\n");
-			write_table(fd, tbl, addr);
-		}
-		acpi_unmap_table(tbl);
-		if (connect) {
-			if (xsdt)
-				(*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
-			else
-				(*(u32*)offset) = lseek(fd, 0, SEEK_CUR);
-		}
-	}
-	if (xsdt) {
-		addr = (unsigned long)rsdp->xsdt_physical_address;
-		if (connect) {
-			rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR);
-		}
-	} else {
-		addr = (unsigned long)rsdp->rsdt_physical_address;
-		if (connect) {
-			rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR);
-		}
-	}
-	write_table(fd, sdt, addr);
-	free (sdt);
-	return 1;
-}
-
-#define DYNAMIC_SSDT	"/sys/firmware/acpi/tables/dynamic"
-
-static void acpi_dump_dynamic_SSDT(int fd)
-{
-	struct stat file_stat;
-	char filename[256], *ptr;
-	DIR *tabledir;
-	struct dirent *entry;
-	FILE *fp;
-	int count, readcount, length;
-	struct acpi_table_header table_header, *ptable;
-
-	if (stat(DYNAMIC_SSDT, &file_stat) == -1) {
-		/* The directory doesn't exist */
-		return;
-	}
-	tabledir = opendir(DYNAMIC_SSDT);
-	if(!tabledir){
-		/*can't open the directory */
-		return;
-         }
-
-	while ((entry = readdir(tabledir)) != 0){
-		/* skip the file of . /.. */
-		if (entry->d_name[0] == '.')
-			continue;
-
-		sprintf(filename, "%s/%s", DYNAMIC_SSDT, entry->d_name);
-		fp = fopen(filename, "r");
-		if (fp == NULL) {
-			fprintf(stderr, "Can't open the file of %s\n",
-						filename);
-			continue;
-		}
-		/* Read the Table header to parse the table length */
-		count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp);
-		if (count < sizeof(table_header)) {
-			/* the length is lessn than ACPI table header. skip it */
-			fclose(fp);
-			continue;
-		}
-		length = table_header.length;
-		ptr = malloc(table_header.length);
-		fseek(fp, 0, SEEK_SET);
-		readcount = 0;
-		while(!feof(fp) && readcount < length) {
-			count = fread(ptr + readcount, 1, 256, fp);
-			readcount += count;
-		}
-		fclose(fp);
-		ptable = (struct acpi_table_header *) ptr;
-		if (checksum((u8 *) ptable, ptable->length))
-			fprintf(stderr, "Wrong checksum "
-					"for dynamic SSDT table!\n");
-		write_table(fd, ptable, 0);
-		free(ptr);
-	}
-	closedir(tabledir);
-	return;
-}
-
-static void usage(const char *progname)
-{
-	puts("Usage:");
-	printf("%s [--addr 0x1234][--table DSDT][--output filename]"
-		"[--binary][--length 0x456][--help]\n", progname);
-	puts("\t--addr 0x1234 or -a 0x1234 -- look for tables at this physical address");
-	puts("\t--table DSDT or -t DSDT -- only dump table with DSDT signature");
-	puts("\t--output filename or -o filename -- redirect output from stdin to filename");
-	puts("\t--binary or -b -- dump data in binary form rather than in hex-dump format");
-	puts("\t--length 0x456 or -l 0x456 -- works only with --addr, dump physical memory"
-		"\n\t\tregion without trying to understand it's contents");
-	puts("\t--skip 2 or -s 2 -- skip 2 tables of the given name and output only 3rd one");
-	puts("\t--help or -h -- this help message");
-	exit(0);
-}
-
-static struct option long_options[] = {
-	{"addr", 1, 0, 0},
-	{"table", 1, 0, 0},
-	{"output", 1, 0, 0},
-	{"binary", 0, 0, 0},
-	{"length", 1, 0, 0},
-	{"skip", 1, 0, 0},
-	{"help", 0, 0, 0},
-	{0, 0, 0, 0}
-};
-int main(int argc, char **argv)
-{
-	int option_index, c, fd;
-	u8 *raw;
-	struct acpi_rsdp_descriptor rsdpx, *x = 0;
-	char *filename = 0;
-	char buff[80];
-	memset(select_sig, 0, 4);
-	print = 1;
-	connect = 0;
-	addr = length = 0;
-	skip = 0;
-	while (1) {
-		option_index = 0;
-		c = getopt_long(argc, argv, "a:t:o:bl:s:h",
-				    long_options, &option_index);
-		if (c == -1)
-			break;
-
-		switch (c) {
-		case 0:
-			switch (option_index) {
-			case 0:
-				addr = strtoul(optarg, (char **)NULL, 16);
-				break;
-			case 1:
-				memcpy(select_sig, optarg, 4);
-				break;
-			case 2:
-				filename = optarg;
-				break;
-			case 3:
-				print = 0;
-				break;
-			case 4:
-				length = strtoul(optarg, (char **)NULL, 16);
-				break;
-			case 5:
-				skip = strtoul(optarg, (char **)NULL, 10);
-				break;
-			case 6:
-				usage(argv[0]);
-				exit(0);
-			}
-			break;
-		case 'a':
-			addr = strtoul(optarg, (char **)NULL, 16);
-			break;
-		case 't':
-			memcpy(select_sig, optarg, 4);
-			break;
-		case 'o':
-			filename = optarg;
-			break;
-		case 'b':
-			print = 0;
-			break;
-		case 'l':
-			length = strtoul(optarg, (char **)NULL, 16);
-			break;
-		case 's':
-			skip = strtoul(optarg, (char **)NULL, 10);
-			break;
-		case 'h':
-			usage(argv[0]);
-			exit(0);
-		default:
-			printf("Unknown option!\n");
-			usage(argv[0]);
-			exit(0);
-		}
-	}
-
-	fd = STDOUT_FILENO;
-	if (filename) {
-		fd = creat(filename, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
-		if (fd < 0)
-			return fd;
-	}
-
-	if (!select_sig[0] && !print) {
-		connect = 1;
-	}
-
-	psz = sysconf(_SC_PAGESIZE);
-	if (length && addr) {
-		/* We know length and address, it means we just want a memory dump */
-		if (!(raw = acpi_map_memory(addr, length)))
-			goto not_found;
-		write(fd, raw, length);
-		acpi_unmap_memory(raw, length);
-		close(fd);
-		return 0;
-	}
-
-	length = sizeof(struct acpi_rsdp_descriptor);
-	if (!addr) {
-		addr = read_efi_systab();
-		if (!addr) {
-			addr = ACPI_HI_RSDP_WINDOW_BASE;
-			length = ACPI_HI_RSDP_WINDOW_SIZE;
-		}
-	}
-
-	if (!(raw = acpi_map_memory(addr, length)) ||
-	    !(x = acpi_scan_for_rsdp(raw, length)))
-		goto not_found;
-
-	/* Find RSDP and print all found tables */
-	memcpy(&rsdpx, x, sizeof(struct acpi_rsdp_descriptor));
-	acpi_unmap_memory(raw, length);
-	if (connect) {
-		lseek(fd, sizeof(struct acpi_rsdp_descriptor), SEEK_SET);
-	}
-	if (!acpi_dump_SDT(fd, &rsdpx))
-		goto not_found;
-	if (connect) {
-		lseek(fd, 0, SEEK_SET);
-		write(fd, x, (rsdpx.revision < 2) ?
-			ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
-	} else if (!select_sig[0] || !memcmp("RSD PTR ", select_sig, 4)) {
-		addr += (long)x - (long)raw;
-		length = snprintf(buff, 80, "RSD PTR @ %p\n", (void *)addr);
-		write(fd, buff, length);
-		acpi_show_data(fd, (u8 *) & rsdpx, (rsdpx.revision < 2) ?
-				ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
-		buff[0] = '\n';
-		write(fd, buff, 1);
-	}
-	acpi_dump_dynamic_SSDT(fd);
-	close(fd);
-	return 0;
-not_found:
-	close(fd);
-	fprintf(stderr, "ACPI tables were not found. If you know location "
-		"of RSD PTR table (from dmesg, etc), "
-		"supply it with either --addr or -a option\n");
-	return 1;
-}
diff --git a/tools/power/acpi/tools/acpidump/acpidump.h b/tools/power/acpi/tools/acpidump/acpidump.h
new file mode 100644
index 00000000000..46f519597fe
--- /dev/null
+++ b/tools/power/acpi/tools/acpidump/acpidump.h
@@ -0,0 +1,130 @@
+/******************************************************************************
+ *
+ * Module Name: acpidump.h - Include file for acpi_dump utility
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+/*
+ * Global variables. Defined in main.c only, externed in all other files
+ */
+#ifdef _DECLARE_GLOBALS
+#define EXTERN
+#define INIT_GLOBAL(a,b)        a=b
+#define DEFINE_ACPI_GLOBALS     1
+#else
+#define EXTERN                  extern
+#define INIT_GLOBAL(a,b)        a
+#endif
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "actables.h"
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+/* Globals */
+
+EXTERN u8 INIT_GLOBAL(gbl_summary_mode, FALSE);
+EXTERN u8 INIT_GLOBAL(gbl_verbose_mode, FALSE);
+EXTERN u8 INIT_GLOBAL(gbl_binary_mode, FALSE);
+EXTERN u8 INIT_GLOBAL(gbl_dump_customized_tables, FALSE);
+EXTERN u8 INIT_GLOBAL(gbl_do_not_dump_xsdt, FALSE);
+EXTERN FILE INIT_GLOBAL(*gbl_output_file, NULL);
+EXTERN char INIT_GLOBAL(*gbl_output_filename, NULL);
+EXTERN u64 INIT_GLOBAL(gbl_rsdp_base, 0);
+
+/* Globals required for use with ACPICA modules */
+
+#ifdef _DECLARE_GLOBALS
+u8 acpi_gbl_integer_byte_width = 8;
+#endif
+
+/* Action table used to defer requested options */
+
+struct ap_dump_action {
+	char *argument;
+	u32 to_be_done;
+};
+
+#define AP_MAX_ACTIONS              32
+
+#define AP_DUMP_ALL_TABLES          0
+#define AP_DUMP_TABLE_BY_ADDRESS    1
+#define AP_DUMP_TABLE_BY_NAME       2
+#define AP_DUMP_TABLE_BY_FILE       3
+
+#define AP_MAX_ACPI_FILES           256	/* Prevent infinite loops */
+
+/* Minimum FADT sizes for various table addresses */
+
+#define MIN_FADT_FOR_DSDT           (ACPI_FADT_OFFSET (dsdt) + sizeof (u32))
+#define MIN_FADT_FOR_FACS           (ACPI_FADT_OFFSET (facs) + sizeof (u32))
+#define MIN_FADT_FOR_XDSDT          (ACPI_FADT_OFFSET (Xdsdt) + sizeof (u64))
+#define MIN_FADT_FOR_XFACS          (ACPI_FADT_OFFSET (Xfacs) + sizeof (u64))
+
+/*
+ * apdump - Table get/dump routines
+ */
+int ap_dump_table_from_file(char *pathname);
+
+int ap_dump_table_by_name(char *signature);
+
+int ap_dump_table_by_address(char *ascii_address);
+
+int ap_dump_all_tables(void);
+
+u8 ap_is_valid_header(struct acpi_table_header *table);
+
+u8 ap_is_valid_checksum(struct acpi_table_header *table);
+
+u32 ap_get_table_length(struct acpi_table_header *table);
+
+/*
+ * apfiles - File I/O utilities
+ */
+int ap_open_output_file(char *pathname);
+
+int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance);
+
+struct acpi_table_header *ap_get_table_from_file(char *pathname,
+						 u32 *file_size);
diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c
new file mode 100644
index 00000000000..3cac1237836
--- /dev/null
+++ b/tools/power/acpi/tools/acpidump/apdump.c
@@ -0,0 +1,451 @@
+/******************************************************************************
+ *
+ * Module Name: apdump - Dump routines for ACPI tables (acpidump)
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include "acpidump.h"
+
+/* Local prototypes */
+
+static int
+ap_dump_table_buffer(struct acpi_table_header *table,
+		     u32 instance, acpi_physical_address address);
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_is_valid_header
+ *
+ * PARAMETERS:  table               - Pointer to table to be validated
+ *
+ * RETURN:      TRUE if the header appears to be valid. FALSE otherwise
+ *
+ * DESCRIPTION: Check for a valid ACPI table header
+ *
+ ******************************************************************************/
+
+u8 ap_is_valid_header(struct acpi_table_header *table)
+{
+
+	if (!ACPI_VALIDATE_RSDP_SIG(table->signature)) {
+
+		/* Make sure signature is all ASCII and a valid ACPI name */
+
+		if (!acpi_ut_valid_acpi_name(table->signature)) {
+			fprintf(stderr,
+				"Table signature (0x%8.8X) is invalid\n",
+				*(u32 *)table->signature);
+			return (FALSE);
+		}
+
+		/* Check for minimum table length */
+
+		if (table->length < sizeof(struct acpi_table_header)) {
+			fprintf(stderr, "Table length (0x%8.8X) is invalid\n",
+				table->length);
+			return (FALSE);
+		}
+	}
+
+	return (TRUE);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_is_valid_checksum
+ *
+ * PARAMETERS:  table               - Pointer to table to be validated
+ *
+ * RETURN:      TRUE if the checksum appears to be valid. FALSE otherwise.
+ *
+ * DESCRIPTION: Check for a valid ACPI table checksum.
+ *
+ ******************************************************************************/
+
+u8 ap_is_valid_checksum(struct acpi_table_header *table)
+{
+	acpi_status status;
+	struct acpi_table_rsdp *rsdp;
+
+	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
+		/*
+		 * Checksum for RSDP.
+		 * Note: Other checksums are computed during the table dump.
+		 */
+		rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
+		status = acpi_tb_validate_rsdp(rsdp);
+	} else {
+		status = acpi_tb_verify_checksum(table, table->length);
+	}
+
+	if (ACPI_FAILURE(status)) {
+		fprintf(stderr, "%4.4s: Warning: wrong checksum in table\n",
+			table->signature);
+	}
+
+	return (AE_OK);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_get_table_length
+ *
+ * PARAMETERS:  table               - Pointer to the table
+ *
+ * RETURN:      Table length
+ *
+ * DESCRIPTION: Obtain table length according to table signature.
+ *
+ ******************************************************************************/
+
+u32 ap_get_table_length(struct acpi_table_header *table)
+{
+	struct acpi_table_rsdp *rsdp;
+
+	/* Check if table is valid */
+
+	if (!ap_is_valid_header(table)) {
+		return (0);
+	}
+
+	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
+		rsdp = ACPI_CAST_PTR(struct acpi_table_rsdp, table);
+		return (rsdp->length);
+	}
+
+	/* Normal ACPI table */
+
+	return (table->length);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_dump_table_buffer
+ *
+ * PARAMETERS:  table               - ACPI table to be dumped
+ *              instance            - ACPI table instance no. to be dumped
+ *              address             - Physical address of the table
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump an ACPI table in standard ASCII hex format, with a
+ *              header that is compatible with the acpi_xtract utility.
+ *
+ ******************************************************************************/
+
+static int
+ap_dump_table_buffer(struct acpi_table_header *table,
+		     u32 instance, acpi_physical_address address)
+{
+	u32 table_length;
+
+	table_length = ap_get_table_length(table);
+
+	/* Print only the header if requested */
+
+	if (gbl_summary_mode) {
+		acpi_tb_print_table_header(address, table);
+		return (0);
+	}
+
+	/* Dump to binary file if requested */
+
+	if (gbl_binary_mode) {
+		return (ap_write_to_binary_file(table, instance));
+	}
+
+	/*
+	 * Dump the table with header for use with acpixtract utility.
+	 * Note: simplest to just always emit a 64-bit address. acpi_xtract
+	 * utility can handle this.
+	 */
+	printf("%4.4s @ 0x%8.8X%8.8X\n", table->signature,
+	       ACPI_FORMAT_UINT64(address));
+
+	acpi_ut_dump_buffer(ACPI_CAST_PTR(u8, table), table_length,
+			    DB_BYTE_DISPLAY, 0);
+	printf("\n");
+	return (0);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_dump_all_tables
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get all tables from the RSDT/XSDT (or at least all of the
+ *              tables that we can possibly get).
+ *
+ ******************************************************************************/
+
+int ap_dump_all_tables(void)
+{
+	struct acpi_table_header *table;
+	u32 instance = 0;
+	acpi_physical_address address;
+	acpi_status status;
+	int table_status;
+	u32 i;
+
+	/* Get and dump all available ACPI tables */
+
+	for (i = 0; i < AP_MAX_ACPI_FILES; i++) {
+		status =
+		    acpi_os_get_table_by_index(i, &table, &instance, &address);
+		if (ACPI_FAILURE(status)) {
+
+			/* AE_LIMIT means that no more tables are available */
+
+			if (status == AE_LIMIT) {
+				return (0);
+			} else if (i == 0) {
+				fprintf(stderr,
+					"Could not get ACPI tables, %s\n",
+					acpi_format_exception(status));
+				return (-1);
+			} else {
+				fprintf(stderr,
+					"Could not get ACPI table at index %u, %s\n",
+					i, acpi_format_exception(status));
+				continue;
+			}
+		}
+
+		table_status = ap_dump_table_buffer(table, instance, address);
+		free(table);
+
+		if (table_status) {
+			break;
+		}
+	}
+
+	/* Something seriously bad happened if the loop terminates here */
+
+	return (-1);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_dump_table_by_address
+ *
+ * PARAMETERS:  ascii_address       - Address for requested ACPI table
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get an ACPI table via a physical address and dump it.
+ *
+ ******************************************************************************/
+
+int ap_dump_table_by_address(char *ascii_address)
+{
+	acpi_physical_address address;
+	struct acpi_table_header *table;
+	acpi_status status;
+	int table_status;
+	u64 long_address;
+
+	/* Convert argument to an integer physical address */
+
+	status = acpi_ut_strtoul64(ascii_address, 0, &long_address);
+	if (ACPI_FAILURE(status)) {
+		fprintf(stderr, "%s: Could not convert to a physical address\n",
+			ascii_address);
+		return (-1);
+	}
+
+	address = (acpi_physical_address) long_address;
+	status = acpi_os_get_table_by_address(address, &table);
+	if (ACPI_FAILURE(status)) {
+		fprintf(stderr, "Could not get table at 0x%8.8X%8.8X, %s\n",
+			ACPI_FORMAT_UINT64(address),
+			acpi_format_exception(status));
+		return (-1);
+	}
+
+	table_status = ap_dump_table_buffer(table, 0, address);
+	free(table);
+	return (table_status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_dump_table_by_name
+ *
+ * PARAMETERS:  signature           - Requested ACPI table signature
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Get an ACPI table via a signature and dump it. Handles
+ *              multiple tables with the same signature (SSDTs).
+ *
+ ******************************************************************************/
+
+int ap_dump_table_by_name(char *signature)
+{
+	char local_signature[ACPI_NAME_SIZE + 1];
+	u32 instance;
+	struct acpi_table_header *table;
+	acpi_physical_address address;
+	acpi_status status;
+	int table_status;
+
+	if (strlen(signature) != ACPI_NAME_SIZE) {
+		fprintf(stderr,
+			"Invalid table signature [%s]: must be exactly 4 characters\n",
+			signature);
+		return (-1);
+	}
+
+	/* Table signatures are expected to be uppercase */
+
+	strcpy(local_signature, signature);
+	acpi_ut_strupr(local_signature);
+
+	/* To be friendly, handle tables whose signatures do not match the name */
+
+	if (ACPI_COMPARE_NAME(local_signature, "FADT")) {
+		strcpy(local_signature, ACPI_SIG_FADT);
+	} else if (ACPI_COMPARE_NAME(local_signature, "MADT")) {
+		strcpy(local_signature, ACPI_SIG_MADT);
+	}
+
+	/* Dump all instances of this signature (to handle multiple SSDTs) */
+
+	for (instance = 0; instance < AP_MAX_ACPI_FILES; instance++) {
+		status = acpi_os_get_table_by_name(local_signature, instance,
+						   &table, &address);
+		if (ACPI_FAILURE(status)) {
+
+			/* AE_LIMIT means that no more tables are available */
+
+			if (status == AE_LIMIT) {
+				return (0);
+			}
+
+			fprintf(stderr,
+				"Could not get ACPI table with signature [%s], %s\n",
+				local_signature, acpi_format_exception(status));
+			return (-1);
+		}
+
+		table_status = ap_dump_table_buffer(table, instance, address);
+		free(table);
+
+		if (table_status) {
+			break;
+		}
+	}
+
+	/* Something seriously bad happened if the loop terminates here */
+
+	return (-1);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_dump_table_from_file
+ *
+ * PARAMETERS:  pathname            - File containing the binary ACPI table
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Dump an ACPI table from a binary file
+ *
+ ******************************************************************************/
+
+int ap_dump_table_from_file(char *pathname)
+{
+	struct acpi_table_header *table;
+	u32 file_size = 0;
+	int table_status = -1;
+
+	/* Get the entire ACPI table from the file */
+
+	table = ap_get_table_from_file(pathname, &file_size);
+	if (!table) {
+		return (-1);
+	}
+
+	/* File must be at least as long as the table length */
+
+	if (table->length > file_size) {
+		fprintf(stderr,
+			"Table length (0x%X) is too large for input file (0x%X) %s\n",
+			table->length, file_size, pathname);
+		goto exit;
+	}
+
+	if (gbl_verbose_mode) {
+		fprintf(stderr,
+			"Input file:  %s contains table [%4.4s], 0x%X (%u) bytes\n",
+			pathname, table->signature, file_size, file_size);
+	}
+
+	table_status = ap_dump_table_buffer(table, 0, 0);
+
+exit:
+	free(table);
+	return (table_status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    acpi_os* print functions
+ *
+ * DESCRIPTION: Used for linkage with ACPICA modules
+ *
+ ******************************************************************************/
+
+void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	vfprintf(stdout, fmt, args);
+	va_end(args);
+}
+
+void acpi_os_vprintf(const char *fmt, va_list args)
+{
+	vfprintf(stdout, fmt, args);
+}
diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c
new file mode 100644
index 00000000000..4488accc010
--- /dev/null
+++ b/tools/power/acpi/tools/acpidump/apfiles.c
@@ -0,0 +1,228 @@
+/******************************************************************************
+ *
+ * Module Name: apfiles - File-related functions for acpidump utility
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include "acpidump.h"
+#include "acapps.h"
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_open_output_file
+ *
+ * PARAMETERS:  pathname            - Output filename
+ *
+ * RETURN:      Open file handle
+ *
+ * DESCRIPTION: Open a text output file for acpidump. Checks if file already
+ *              exists.
+ *
+ ******************************************************************************/
+
+int ap_open_output_file(char *pathname)
+{
+	struct stat stat_info;
+	FILE *file;
+
+	/* If file exists, prompt for overwrite */
+
+	if (!stat(pathname, &stat_info)) {
+		fprintf(stderr,
+			"Target path already exists, overwrite? [y|n] ");
+
+		if (getchar() != 'y') {
+			return (-1);
+		}
+	}
+
+	/* Point stdout to the file */
+
+	file = freopen(pathname, "w", stdout);
+	if (!file) {
+		perror("Could not open output file");
+		return (-1);
+	}
+
+	/* Save the file and path */
+
+	gbl_output_file = file;
+	gbl_output_filename = pathname;
+	return (0);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_write_to_binary_file
+ *
+ * PARAMETERS:  table               - ACPI table to be written
+ *              instance            - ACPI table instance no. to be written
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Write an ACPI table to a binary file. Builds the output
+ *              filename from the table signature.
+ *
+ ******************************************************************************/
+
+int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance)
+{
+	char filename[ACPI_NAME_SIZE + 16];
+	char instance_str[16];
+	FILE *file;
+	size_t actual;
+	u32 table_length;
+
+	/* Obtain table length */
+
+	table_length = ap_get_table_length(table);
+
+	/* Construct lower-case filename from the table local signature */
+
+	if (ACPI_VALIDATE_RSDP_SIG(table->signature)) {
+		ACPI_MOVE_NAME(filename, ACPI_RSDP_NAME);
+	} else {
+		ACPI_MOVE_NAME(filename, table->signature);
+	}
+	filename[0] = (char)ACPI_TOLOWER(filename[0]);
+	filename[1] = (char)ACPI_TOLOWER(filename[1]);
+	filename[2] = (char)ACPI_TOLOWER(filename[2]);
+	filename[3] = (char)ACPI_TOLOWER(filename[3]);
+	filename[ACPI_NAME_SIZE] = 0;
+
+	/* Handle multiple SSDts - create different filenames for each */
+
+	if (instance > 0) {
+		sprintf(instance_str, "%u", instance);
+		strcat(filename, instance_str);
+	}
+
+	strcat(filename, ACPI_TABLE_FILE_SUFFIX);
+
+	if (gbl_verbose_mode) {
+		fprintf(stderr,
+			"Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n",
+			table->signature, filename, table->length,
+			table->length);
+	}
+
+	/* Open the file and dump the entire table in binary mode */
+
+	file = fopen(filename, "wb");
+	if (!file) {
+		perror("Could not open output file");
+		return (-1);
+	}
+
+	actual = fwrite(table, 1, table_length, file);
+	if (actual != table_length) {
+		perror("Error writing binary output file");
+		fclose(file);
+		return (-1);
+	}
+
+	fclose(file);
+	return (0);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_get_table_from_file
+ *
+ * PARAMETERS:  pathname            - File containing the binary ACPI table
+ *              out_file_size       - Where the file size is returned
+ *
+ * RETURN:      Buffer containing the ACPI table. NULL on error.
+ *
+ * DESCRIPTION: Open a file and read it entirely into a new buffer
+ *
+ ******************************************************************************/
+
+struct acpi_table_header *ap_get_table_from_file(char *pathname,
+						 u32 *out_file_size)
+{
+	struct acpi_table_header *buffer = NULL;
+	FILE *file;
+	u32 file_size;
+	size_t actual;
+
+	/* Must use binary mode */
+
+	file = fopen(pathname, "rb");
+	if (!file) {
+		perror("Could not open input file");
+		return (NULL);
+	}
+
+	/* Need file size to allocate a buffer */
+
+	file_size = cm_get_file_size(file);
+	if (file_size == ACPI_UINT32_MAX) {
+		fprintf(stderr,
+			"Could not get input file size: %s\n", pathname);
+		goto cleanup;
+	}
+
+	/* Allocate a buffer for the entire file */
+
+	buffer = calloc(1, file_size);
+	if (!buffer) {
+		fprintf(stderr,
+			"Could not allocate file buffer of size: %u\n",
+			file_size);
+		goto cleanup;
+	}
+
+	/* Read the entire file */
+
+	actual = fread(buffer, 1, file_size, file);
+	if (actual != file_size) {
+		fprintf(stderr, "Could not read input file: %s\n", pathname);
+		free(buffer);
+		buffer = NULL;
+		goto cleanup;
+	}
+
+	*out_file_size = file_size;
+
+cleanup:
+	fclose(file);
+	return (buffer);
+}
diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c
new file mode 100644
index 00000000000..51e8d638db1
--- /dev/null
+++ b/tools/power/acpi/tools/acpidump/apmain.c
@@ -0,0 +1,351 @@
+/******************************************************************************
+ *
+ * Module Name: apmain - Main module for the acpidump utility
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#define _DECLARE_GLOBALS
+#include "acpidump.h"
+#include "acapps.h"
+
+/*
+ * acpidump - A portable utility for obtaining system ACPI tables and dumping
+ * them in an ASCII hex format suitable for binary extraction via acpixtract.
+ *
+ * Obtaining the system ACPI tables is an OS-specific operation.
+ *
+ * This utility can be ported to any host operating system by providing a
+ * module containing system-specific versions of these interfaces:
+ *
+ *      acpi_os_get_table_by_address
+ *      acpi_os_get_table_by_index
+ *      acpi_os_get_table_by_name
+ *
+ * See the ACPICA Reference Guide for the exact definitions of these
+ * interfaces. Also, see these ACPICA source code modules for example
+ * implementations:
+ *
+ *      source/os_specific/service_layers/oswintbl.c
+ *      source/os_specific/service_layers/oslinuxtbl.c
+ */
+
+/* Local prototypes */
+
+static void ap_display_usage(void);
+
+static int ap_do_options(int argc, char **argv);
+
+static void ap_insert_action(char *argument, u32 to_be_done);
+
+/* Table for deferred actions from command line options */
+
+struct ap_dump_action action_table[AP_MAX_ACTIONS];
+u32 current_action = 0;
+
+#define AP_UTILITY_NAME             "ACPI Binary Table Dump Utility"
+#define AP_SUPPORTED_OPTIONS        "?a:bcf:hn:o:r:svxz"
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_display_usage
+ *
+ * DESCRIPTION: Usage message for the acpi_dump utility
+ *
+ ******************************************************************************/
+
+static void ap_display_usage(void)
+{
+
+	ACPI_USAGE_HEADER("acpidump [options]");
+
+	ACPI_OPTION("-b", "Dump tables to binary files");
+	ACPI_OPTION("-c", "Dump customized tables");
+	ACPI_OPTION("-h -?", "This help message");
+	ACPI_OPTION("-o <File>", "Redirect output to file");
+	ACPI_OPTION("-r <Address>", "Dump tables from specified RSDP");
+	ACPI_OPTION("-s", "Print table summaries only");
+	ACPI_OPTION("-v", "Display version information");
+	ACPI_OPTION("-z", "Verbose mode");
+
+	printf("\nTable Options:\n");
+
+	ACPI_OPTION("-a <Address>", "Get table via a physical address");
+	ACPI_OPTION("-f <BinaryFile>", "Get table via a binary file");
+	ACPI_OPTION("-n <Signature>", "Get table via a name/signature");
+	ACPI_OPTION("-x", "Do not use but dump XSDT");
+	ACPI_OPTION("-x -x", "Do not use or dump XSDT");
+
+	printf("\n"
+	       "Invocation without parameters dumps all available tables\n"
+	       "Multiple mixed instances of -a, -f, and -n are supported\n\n");
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_insert_action
+ *
+ * PARAMETERS:  argument            - Pointer to the argument for this action
+ *              to_be_done          - What to do to process this action
+ *
+ * RETURN:      None. Exits program if action table becomes full.
+ *
+ * DESCRIPTION: Add an action item to the action table
+ *
+ ******************************************************************************/
+
+static void ap_insert_action(char *argument, u32 to_be_done)
+{
+
+	/* Insert action and check for table overflow */
+
+	action_table[current_action].argument = argument;
+	action_table[current_action].to_be_done = to_be_done;
+
+	current_action++;
+	if (current_action > AP_MAX_ACTIONS) {
+		fprintf(stderr, "Too many table options (max %u)\n",
+			AP_MAX_ACTIONS);
+		exit(-1);
+	}
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    ap_do_options
+ *
+ * PARAMETERS:  argc/argv           - Standard argc/argv
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Command line option processing. The main actions for getting
+ *              and dumping tables are deferred via the action table.
+ *
+ *****************************************************************************/
+
+static int ap_do_options(int argc, char **argv)
+{
+	int j;
+	acpi_status status;
+
+	/* Command line options */
+
+	while ((j = acpi_getopt(argc, argv, AP_SUPPORTED_OPTIONS)) != EOF)
+		switch (j) {
+			/*
+			 * Global options
+			 */
+		case 'b':	/* Dump all input tables to binary files */
+
+			gbl_binary_mode = TRUE;
+			continue;
+
+		case 'c':	/* Dump customized tables */
+
+			gbl_dump_customized_tables = TRUE;
+			continue;
+
+		case 'h':
+		case '?':
+
+			ap_display_usage();
+			exit(0);
+
+		case 'o':	/* Redirect output to a single file */
+
+			if (ap_open_output_file(acpi_gbl_optarg)) {
+				exit(-1);
+			}
+			continue;
+
+		case 'r':	/* Dump tables from specified RSDP */
+
+			status =
+			    acpi_ut_strtoul64(acpi_gbl_optarg, 0,
+					      &gbl_rsdp_base);
+			if (ACPI_FAILURE(status)) {
+				fprintf(stderr,
+					"%s: Could not convert to a physical address\n",
+					acpi_gbl_optarg);
+				exit(-1);
+			}
+			continue;
+
+		case 's':	/* Print table summaries only */
+
+			gbl_summary_mode = TRUE;
+			continue;
+
+		case 'x':	/* Do not use XSDT */
+
+			if (!acpi_gbl_do_not_use_xsdt) {
+				acpi_gbl_do_not_use_xsdt = TRUE;
+			} else {
+				gbl_do_not_dump_xsdt = TRUE;
+			}
+			continue;
+
+		case 'v':	/* Revision/version */
+
+			printf(ACPI_COMMON_SIGNON(AP_UTILITY_NAME));
+			exit(0);
+
+		case 'z':	/* Verbose mode */
+
+			gbl_verbose_mode = TRUE;
+			fprintf(stderr, ACPI_COMMON_SIGNON(AP_UTILITY_NAME));
+			continue;
+
+			/*
+			 * Table options
+			 */
+		case 'a':	/* Get table by physical address */
+
+			ap_insert_action(acpi_gbl_optarg,
+					 AP_DUMP_TABLE_BY_ADDRESS);
+			break;
+
+		case 'f':	/* Get table from a file */
+
+			ap_insert_action(acpi_gbl_optarg,
+					 AP_DUMP_TABLE_BY_FILE);
+			break;
+
+		case 'n':	/* Get table by input name (signature) */
+
+			ap_insert_action(acpi_gbl_optarg,
+					 AP_DUMP_TABLE_BY_NAME);
+			break;
+
+		default:
+
+			ap_display_usage();
+			exit(-1);
+		}
+
+	/* If there are no actions, this means "get/dump all tables" */
+
+	if (current_action == 0) {
+		ap_insert_action(NULL, AP_DUMP_ALL_TABLES);
+	}
+
+	return (0);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION:    main
+ *
+ * PARAMETERS:  argc/argv           - Standard argc/argv
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: C main function for acpidump utility
+ *
+ ******************************************************************************/
+
+int ACPI_SYSTEM_XFACE main(int argc, char *argv[])
+{
+	int status = 0;
+	struct ap_dump_action *action;
+	u32 file_size;
+	u32 i;
+
+	ACPI_DEBUG_INITIALIZE();	/* For debug version only */
+
+	/* Process command line options */
+
+	if (ap_do_options(argc, argv)) {
+		return (-1);
+	}
+
+	/* Get/dump ACPI table(s) as requested */
+
+	for (i = 0; i < current_action; i++) {
+		action = &action_table[i];
+		switch (action->to_be_done) {
+		case AP_DUMP_ALL_TABLES:
+
+			status = ap_dump_all_tables();
+			break;
+
+		case AP_DUMP_TABLE_BY_ADDRESS:
+
+			status = ap_dump_table_by_address(action->argument);
+			break;
+
+		case AP_DUMP_TABLE_BY_NAME:
+
+			status = ap_dump_table_by_name(action->argument);
+			break;
+
+		case AP_DUMP_TABLE_BY_FILE:
+
+			status = ap_dump_table_from_file(action->argument);
+			break;
+
+		default:
+
+			fprintf(stderr,
+				"Internal error, invalid action: 0x%X\n",
+				action->to_be_done);
+			return (-1);
+		}
+
+		if (status) {
+			return (status);
+		}
+	}
+
+	if (gbl_output_file) {
+		if (gbl_verbose_mode) {
+
+			/* Summary for the output file */
+
+			file_size = cm_get_file_size(gbl_output_file);
+			fprintf(stderr,
+				"Output file %s contains 0x%X (%u) bytes\n\n",
+				gbl_output_filename, file_size, file_size);
+		}
+
+		fclose(gbl_output_file);
+	}
+
+	return (status);
+}