[PATCH 01/34] System Firmware Interface

[PATCH 01/34] System Firmware Interface

[Prarit Bhargava]

This patch introduces a general System Firmware interface to the kernel, called
sysfw.

Inlcluded in this interface is the ability to search a standard set of fields,
sysfw_lookup().  The fields are currently based upon the x86 and ia64 SMBIOS
fields but exapandable to fields that other arches may introduce.  Also
included is  the ability to search and match against those fields, and run
a callback function against the matches, sysfw_callback().

Modify module code to use sysfw instead of old DMI interface.

[v2]: Modified sysfw_id to include up to 8 matches.  Almost all declarations of
sysfw_id are __init so the increased kernel image size isn't a big issue.

[v3]: Use sysfs bus instead of class, restore existing dmi class for backwards
compatibility.

Cc: linux-ia64@vger.kernel.org
Cc: x86@kernel.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: openipmi-developer@lists.sourceforge.net
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: lm-sensors@lm-sensors.org
Cc: linux-i2c@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: rtc-linux@googlegroups.com
Cc: evel@driverdev.osuosl.org
Cc: linux-usb@vger.kernel.org
Cc: device-drivers-devel@blackfin.uclinux.org
Cc: linux-watchdog@vger.kernel.org
Cc: grant.likely@secretlab.ca
Cc: dz@debian.org
Cc: rpurdie@rpsys.net
Cc: eric.piel@tremplin-utc.net
Cc: abelay@mit.edu
Cc: johnpol@2ka.mipt.ru
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
---
 drivers/firmware/Kconfig        |   25 +++
 drivers/firmware/Makefile       |    3 +-
 drivers/firmware/sysfw-sysfs.c  |  306 +++++++++++++++++++++++++++++++++++++++
 drivers/firmware/sysfw.c        |  168 +++++++++++++++++++++
 include/linux/mod_devicetable.h |   62 ++++++++
 include/linux/sysfw.h           |  113 ++++++++++++++
 init/main.c                     |    3 +
 scripts/mod/file2alias.c        |   52 ++++----
 8 files changed, 705 insertions(+), 27 deletions(-)
 create mode 100644 drivers/firmware/sysfw-sysfs.c
 create mode 100644 drivers/firmware/sysfw.c
 create mode 100644 include/linux/sysfw.h

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index efba163..79a1b9d 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -157,6 +157,31 @@ config SIGMA
 	  If unsure, say N here.  Drivers that need these helpers will select
 	  this option automatically.
 
+config SYSTEM_FIRMWARE
+	bool "System Firmware Interface"
+	default y
+	help
+	  Enables common System Firmware Interface to export system firmware
+	  (SMBIOS, DMI, etc.) information to kernel and userspace.
+
+config SYSTEM_FIRMWARE_SYSFS
+	bool "Export System Firmware identification via sysfs to userspace"
+	depends on SYSTEM_FIRMWARE
+	help
+	  Say Y here if you want to query system identification information
+	  from userspace through /sys/class/sysfw/id/ or if you want
+	  system firmware (sysfw) based module auto-loading.
+
+config SYSTEM_FIRMWARE_DMI_COMPAT
+	bool "Export dmi compatibility class in sysfs"
+	depends on SYSTEM_FIRMWARE
+	default y
+	help
+	  This exposes /sys/class/dmi/* as a pointer to the sysfw class for
+	  old software.  This is purely a backwards compatability feature and
+	  should not be used in new user space software.  Please see
+	  Documentation/ABI for details.
+
 source "drivers/firmware/google/Kconfig"
 
 endmenu
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 47338c9..41bc64a 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -13,5 +13,6 @@ obj-$(CONFIG_ISCSI_IBFT_FIND)	+= iscsi_ibft_find.o
 obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o
 obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o
 obj-$(CONFIG_SIGMA)		+= sigma.o
-
 obj-$(CONFIG_GOOGLE_FIRMWARE)	+= google/
+obj-$(CONFIG_SYSTEM_FIRMWARE)	+= sysfw.o
+obj-$(CONFIG_SYSTEM_FIRMWARE_SYSFS)	+= sysfw-sysfs.o
diff --git a/drivers/firmware/sysfw-sysfs.c b/drivers/firmware/sysfw-sysfs.c
new file mode 100644
index 0000000..48d7d07
--- /dev/null
+++ b/drivers/firmware/sysfw-sysfs.c
@@ -0,0 +1,306 @@
+/*
+ * Export sysfs sysfw_field's to userspace
+ *
+ * Updated 2011, Prarit Bhargava, prarit@redhat.com
+ * Copyright 2007, Lennart Poettering
+ *
+ * Licensed under GPLv2
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sysfw.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/sysfw.h>
+
+struct sysfw_device_attribute {
+	struct device_attribute dev_attr;
+	int field;
+};
+#define to_sysfw_dev_attr(_dev_attr) \
+	container_of(_dev_attr, struct sysfw_device_attribute, dev_attr)
+
+static ssize_t sys_sysfw_field_show(struct device *dev,
+				  struct device_attribute *attr,
+				  char *page)
+{
+	int field = to_sysfw_dev_attr(attr)->field;
+	ssize_t len;
+	len = scnprintf(page, PAGE_SIZE, "%s\n", sysfw_lookup(field));
+	page[len-1] = '\n';
+	return len;
+}
+
+#define SYSFW_ATTR(_name, _mode, _show, _field)			\
+	{ .dev_attr = __ATTR(_name, _mode, _show, NULL),	\
+	  .field = _field }
+
+#define DEFINE_SYSFW_ATTR_WITH_SHOW(_name, _mode, _field)		\
+static struct sysfw_device_attribute sys_sysfw_##_name##_attr =	\
+	SYSFW_ATTR(_name, _mode, sys_sysfw_field_show, _field);
+
+DEFINE_SYSFW_ATTR_WITH_SHOW(bios_vendor,	0444, SYSFW_BIOS_VENDOR);
+DEFINE_SYSFW_ATTR_WITH_SHOW(bios_version,	0444, SYSFW_BIOS_VERSION);
+DEFINE_SYSFW_ATTR_WITH_SHOW(bios_date,		0444, SYSFW_BIOS_DATE);
+DEFINE_SYSFW_ATTR_WITH_SHOW(sys_vendor,	0444, SYSFW_SYS_VENDOR);
+DEFINE_SYSFW_ATTR_WITH_SHOW(product_name,	0444, SYSFW_PRODUCT_NAME);
+DEFINE_SYSFW_ATTR_WITH_SHOW(product_version,	0444, SYSFW_PRODUCT_VERSION);
+DEFINE_SYSFW_ATTR_WITH_SHOW(product_serial,	0400, SYSFW_PRODUCT_SERIAL);
+DEFINE_SYSFW_ATTR_WITH_SHOW(product_uuid,	0400, SYSFW_PRODUCT_UUID);
+DEFINE_SYSFW_ATTR_WITH_SHOW(board_vendor,	0444, SYSFW_BOARD_VENDOR);
+DEFINE_SYSFW_ATTR_WITH_SHOW(board_name,	0444, SYSFW_BOARD_NAME);
+DEFINE_SYSFW_ATTR_WITH_SHOW(board_version,	0444, SYSFW_BOARD_VERSION);
+DEFINE_SYSFW_ATTR_WITH_SHOW(board_serial,	0400, SYSFW_BOARD_SERIAL);
+DEFINE_SYSFW_ATTR_WITH_SHOW(board_asset_tag,	0444, SYSFW_BOARD_ASSET_TAG);
+DEFINE_SYSFW_ATTR_WITH_SHOW(chassis_vendor,	0444, SYSFW_CHASSIS_VENDOR);
+DEFINE_SYSFW_ATTR_WITH_SHOW(chassis_type,	0444, SYSFW_CHASSIS_TYPE);
+DEFINE_SYSFW_ATTR_WITH_SHOW(chassis_version,	0444, SYSFW_CHASSIS_VERSION);
+DEFINE_SYSFW_ATTR_WITH_SHOW(chassis_serial,	0400, SYSFW_CHASSIS_SERIAL);
+DEFINE_SYSFW_ATTR_WITH_SHOW(chassis_asset_tag,	0444, SYSFW_CHASSIS_ASSET_TAG);
+
+static void ascii_filter(char *d, const char *s)
+{
+	/* Filter out characters we don't want to see in the modalias string */
+	for (; *s; s++)
+		if (*s > ' ' && *s < 127 && *s != ':')
+			*(d++) = *s;
+
+	*d = 0;
+}
+
+static ssize_t get_modalias(char *buffer, size_t buffer_size,
+			    struct device *dev)
+{
+	static const struct mafield {
+		const char *prefix;
+		int field;
+	} fields[] = {
+		{ "bvn", SYSFW_BIOS_VENDOR },
+		{ "bvr", SYSFW_BIOS_VERSION },
+		{ "bd",  SYSFW_BIOS_DATE },
+		{ "svn", SYSFW_SYS_VENDOR },
+		{ "pn",  SYSFW_PRODUCT_NAME },
+		{ "pvr", SYSFW_PRODUCT_VERSION },
+		{ "rvn", SYSFW_BOARD_VENDOR },
+		{ "rn",  SYSFW_BOARD_NAME },
+		{ "rvr", SYSFW_BOARD_VERSION },
+		{ "cvn", SYSFW_CHASSIS_VENDOR },
+		{ "ct",  SYSFW_CHASSIS_TYPE },
+		{ "cvr", SYSFW_CHASSIS_VERSION },
+		{ NULL,  SYSFW_NONE }
+	};
+	ssize_t l, left;
+	char *p;
+	const struct mafield *f;
+	const char *name = dev_name(dev);
+
+	left = buffer_size;
+	p = buffer;
+	name = dev_name(dev);
+	if (!strncmp(dev_name(dev), "sysfw", 5)) {
+		strcpy(buffer, "sysfw");
+		p += 5;
+		left -= 6;
+	}
+#ifdef CONFIG_SYSTEM_FIRMWARE_DMI_COMPAT
+	if (!strncmp(dev_name(dev), "id", 2)) { /* old dmi */
+		strcpy(buffer, "dmi");
+		p +=  3;
+		left -= 4;
+	}
+#endif
+
+	for (f = fields; f->prefix && left > 0; f++) {
+		const char *c;
+		char *t;
+
+		c = sysfw_lookup(f->field);
+		if (!c)
+			continue;
+
+		t = kmalloc(strlen(c) + 1, GFP_KERNEL);
+		if (!t)
+			break;
+		ascii_filter(t, c);
+		l = scnprintf(p, left, ":%s%s", f->prefix, t);
+		kfree(t);
+
+		p += l;
+		left -= l;
+	}
+
+	p[0] = ':';
+	p[1] = 0;
+
+	return p - buffer + 1;
+}
+
+static ssize_t sys_sysfw_modalias_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *page)
+{
+	ssize_t r;
+	r = get_modalias(page, PAGE_SIZE-1, dev);
+	page[r] = '\n';
+	page[r+1] = 0;
+	return r+1;
+}
+
+static struct device_attribute sys_sysfw_modalias_attr =
+	__ATTR(modalias, 0444, sys_sysfw_modalias_show, NULL);
+
+static struct attribute *sys_sysfw_attributes[SYSFW_STRING_MAX+2];
+
+static struct attribute_group sys_sysfw_attribute_group = {
+	.attrs = sys_sysfw_attributes,
+};
+
+static const struct attribute_group *sys_sysfw_attribute_groups[] = {
+	&sys_sysfw_attribute_group,
+	NULL
+};
+
+static void sys_sysfw_release(struct device *dev)
+{
+	/* nothing to do */
+	return;
+}
+
+static struct device_type sysfw_type = {
+	.groups = sys_sysfw_attribute_groups,
+	.release = sys_sysfw_release,
+};
+
+/* Initialization */
+
+#define ADD_SYSFW_ATTR(_name, _field) \
+	if (sysfw_lookup(_field)) \
+		sys_sysfw_attributes[i++] = \
+		&sys_sysfw_##_name##_attr.dev_attr.attr;
+
+/* In a separate function to keep gcc 3.2 happy - do NOT merge this in
+   sysfw_bus_init! */
+static void __init sysfw_id_init_attr_table(void)
+{
+	int i;
+
+	/* Not necessarily all SYSFW fields are available on all
+	 * systems, hence let's built an attribute table of just
+	 * what's available */
+	i = 0;
+	ADD_SYSFW_ATTR(bios_vendor,       SYSFW_BIOS_VENDOR);
+	ADD_SYSFW_ATTR(bios_version,      SYSFW_BIOS_VERSION);
+	ADD_SYSFW_ATTR(bios_date,         SYSFW_BIOS_DATE);
+	ADD_SYSFW_ATTR(sys_vendor,        SYSFW_SYS_VENDOR);
+	ADD_SYSFW_ATTR(product_name,      SYSFW_PRODUCT_NAME);
+	ADD_SYSFW_ATTR(product_version,   SYSFW_PRODUCT_VERSION);
+	ADD_SYSFW_ATTR(product_serial,    SYSFW_PRODUCT_SERIAL);
+	ADD_SYSFW_ATTR(product_uuid,      SYSFW_PRODUCT_UUID);
+	ADD_SYSFW_ATTR(board_vendor,      SYSFW_BOARD_VENDOR);
+	ADD_SYSFW_ATTR(board_name,        SYSFW_BOARD_NAME);
+	ADD_SYSFW_ATTR(board_version,     SYSFW_BOARD_VERSION);
+	ADD_SYSFW_ATTR(board_serial,      SYSFW_BOARD_SERIAL);
+	ADD_SYSFW_ATTR(board_asset_tag,   SYSFW_BOARD_ASSET_TAG);
+	ADD_SYSFW_ATTR(chassis_vendor,    SYSFW_CHASSIS_VENDOR);
+	ADD_SYSFW_ATTR(chassis_type,      SYSFW_CHASSIS_TYPE);
+	ADD_SYSFW_ATTR(chassis_version,   SYSFW_CHASSIS_VERSION);
+	ADD_SYSFW_ATTR(chassis_serial,    SYSFW_CHASSIS_SERIAL);
+	ADD_SYSFW_ATTR(chassis_asset_tag, SYSFW_CHASSIS_ASSET_TAG);
+	sys_sysfw_attributes[i++] = &sys_sysfw_modalias_attr.attr;
+}
+
+static int sysfw_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	ssize_t len;
+
+	if (add_uevent_var(env, "MODALIAS="))
+		return -ENOMEM;
+	len = get_modalias(&env->buf[env->buflen - 1],
+			   sizeof(env->buf) - env->buflen, dev);
+	if (len >= (sizeof(env->buf) - env->buflen))
+		return -ENOMEM;
+	env->buflen += len;
+	return 0;
+}
+
+#ifdef CONFIG_SYSTEM_FIRMWARE_DMI_COMPAT
+/* Hopefully someday we can get rid of this. */
+static struct class dmi_class = {
+	.name = "dmi",
+	.dev_release = (void(*)(struct device *)) kfree,
+	.dev_uevent = sysfw_dev_uevent,
+};
+
+static struct device dmi_dev = {
+	.class = &dmi_class,
+	.groups = sys_sysfw_attribute_groups,
+};
+
+static int __init sysfw_legacy_dmi(void)
+{
+	int ret;
+
+	ret = class_register(&dmi_class);
+	if (ret)
+		return ret;
+
+	dev_set_name(&dmi_dev, "id");
+	ret = device_register(&dmi_dev);
+	return ret;
+}
+#else
+static int __init sysfw_legacy_dmi(void)
+{
+	return 0;
+}
+#endif
+
+static int sysfw_bus_match(struct device *dev, struct device_driver *drv)
+{
+	return 1;
+}
+
+struct bus_type sysfw_bus_type = {
+	.name = "sysfw",
+	.match = sysfw_bus_match,
+	.uevent = sysfw_dev_uevent,
+};
+
+static struct device sysfw_dev = {
+	.bus = &sysfw_bus_type,
+	.type = &sysfw_type,
+};
+
+void sysfw_sysfs_device_init(const char *name)
+{
+	if (!dev_name(&sysfw_dev))
+		dev_set_name(&sysfw_dev, name);
+}
+
+static int __init sysfw_bus_init(void)
+{
+	int ret;
+
+	sysfw_id_init_attr_table();
+
+	ret = bus_register(&sysfw_bus_type);
+	if (ret)
+		return ret;
+
+	ret = device_register(&sysfw_dev);
+	if (ret) {
+		bus_unregister(&sysfw_bus_type);
+	}
+	return ret;
+
+	/* Failing to setup legacy DMI is NOT a fatal error */
+	ret = sysfw_legacy_dmi();
+	if (ret)
+		printk(KERN_ERR "SYSFW: DMI Legacy sysfs did not "
+		       "initialize.\n");
+
+	return 0;
+}
+arch_initcall(sysfw_bus_init);
diff --git a/drivers/firmware/sysfw.c b/drivers/firmware/sysfw.c
new file mode 100644
index 0000000..c37e19e
--- /dev/null
+++ b/drivers/firmware/sysfw.c
@@ -0,0 +1,168 @@
+/*
+ * System Firmware (sysfw) support
+ *
+ * started by Prarit Bhargava, Copyright (C) 2011 Red Hat, Inc.
+ *
+ * SYSFW interface to export commonly used values from System Firmware
+ *
+ * Some bits copied directly from original x86 and ia64 dmi*.c files
+ */
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
+#include <linux/slab.h>
+#include <linux/sysfw.h>
+
+/* Global sysfw instance */
+static struct sysfw_driver *sysfw;
+
+/**
+ * sysfw_driver_register - register a firmware driver
+ * @driver: sysfw_driver struct representing driver to register
+ *
+ * This function registers a sysfw driver.  Since the FW exists for the
+ * lifetime of the system there is no need for an unregister function.
+ */
+int __init sysfw_driver_register(struct sysfw_driver *driver)
+{
+	int ret;
+
+	if (!driver->init || !driver->name) {
+		WARN(1, "System Firmware Interface: driver error\n");
+		return -EFAULT;
+	}
+
+	if (sysfw) {
+		WARN(1, "System Firmware Interface: already registered\n");
+		return -EBUSY;
+	}
+
+	sysfw = driver;
+	ret = sysfw->init();
+	if (ret)
+		return -ENODEV;
+
+	return 0;
+}
+
+/* called in start_kernel(), after memory management has been initialized. */
+void __init sysfw_init_late(void)
+{
+	if (sysfw && sysfw->late)
+		sysfw->late();
+	sysfw_sysfs_device_init(sysfw->name);
+}
+
+/**
+ * sysfw_lookup - find a sysfw value for a given field.
+ * @field: field to lookup
+ *
+ * This function calls into the system firmware and returns an appropriate
+ * string.
+ */
+const char *sysfw_lookup(int field)
+{
+	if (sysfw && sysfw->lookup)
+		return sysfw->lookup(field);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(sysfw_lookup);
+
+/**
+ * sysfw_vendor_is - checks to see if the vendor fields in the firmware
+ * contain a string
+ * @str: string to search for
+ *
+ * Returns true/false if the string is in any of the SYSFW_*VENDOR* fields.
+ */
+bool sysfw_vendor_is(const char *str)
+{
+	static int fields[] = { SYSFW_BIOS_VENDOR, SYSFW_BIOS_VERSION,
+				SYSFW_SYS_VENDOR, SYSFW_PRODUCT_NAME,
+				SYSFW_PRODUCT_VERSION, SYSFW_BOARD_VENDOR,
+				SYSFW_BOARD_NAME, SYSFW_BOARD_VERSION,
+				SYSFW_NONE };
+	int i;
+
+	if (!sysfw)
+		return false;
+
+	if (!sysfw->lookup)
+		return false;
+
+	for (i = 0; fields[i] != SYSFW_NONE; i++) {
+		if (sysfw_lookup(i) && strstr(sysfw_lookup(i), str))
+			return true;
+	}
+	return false;
+}
+EXPORT_SYMBOL(sysfw_vendor_is);
+
+/**
+ * sysfw_get_date - returns the date of the firmware in YYYYMMDD format.
+ *
+ * Retuns the date the firmware was built in YYYYMMDD for easy comparisons.
+ */
+int sysfw_get_date(void)
+{
+	if (sysfw && sysfw->date)
+		return sysfw->date();
+	return 0;
+}
+EXPORT_SYMBOL(sysfw_get_date);
+
+/* compares and matches the strings in sysfw_id */
+static bool sysfw_match_fields(const struct sysfw_id *id, int exactmatch)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(id->matches); i++) {
+		int s = id->matches[i].slot;
+		if (s == SYSFW_NONE)
+			break;
+		if (!sysfw_lookup(s))
+			continue;
+		if (exactmatch &&
+		    !strcmp(sysfw_lookup(s), id->matches[i].substr))
+			continue;
+		if (!exactmatch &&
+		    strstr(sysfw_lookup(s), id->matches[i].substr))
+			continue;
+		/* No match */
+		return false;
+	}
+	return true;
+}
+
+static bool sysfw_is_end_of_table(const struct sysfw_id *id)
+{
+	return id->matches[0].slot == SYSFW_NONE;
+}
+
+/**
+ * sysfw_callback - go through a list and run a function on all matching ids
+ * @list: list of ids to search
+ *
+ * This function takes a list of fields and strings to compare, attempts to
+ * compare the strings to the sysfw fields and runs a callback function for
+ * each positive comparison.  The comparison can stop by returning 0 in
+ * the callback function.
+ */
+const struct sysfw_id *sysfw_callback(const struct sysfw_id *list)
+{
+	const struct sysfw_id *id;
+
+	if (!sysfw)
+		return NULL;
+
+	for (id = list; !sysfw_is_end_of_table(id); id++)
+		if (sysfw_match_fields(id, id->exactmatch)) {
+			if (id->callback)
+				id->callback(id);
+			return id;
+		}
+	return NULL;
+}
+EXPORT_SYMBOL(sysfw_callback);
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index ae28e93..89153ad 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -482,6 +482,68 @@ struct dmi_system_id {
 
 #define DMI_MATCH(a, b)	{ a, b }
 
+/*
+ * sysfw field - right now these are based on x86/ia64's SMBIOS fields.  But
+ * other arches are certainly welcome to add additional fields.  The
+ * sys_lookup() functions must be careful to return NULL on non-populated
+ * fields.
+ */
+enum sysfw_field {
+	SYSFW_NONE,
+	SYSFW_BIOS_VENDOR,
+	SYSFW_BIOS_VERSION,
+	SYSFW_BIOS_DATE,
+	SYSFW_SYS_VENDOR,
+	SYSFW_PRODUCT_NAME,
+	SYSFW_PRODUCT_VERSION,
+	SYSFW_PRODUCT_SERIAL,
+	SYSFW_PRODUCT_UUID,
+	SYSFW_BOARD_VENDOR,
+	SYSFW_BOARD_NAME,
+	SYSFW_BOARD_VERSION,
+	SYSFW_BOARD_SERIAL,
+	SYSFW_BOARD_ASSET_TAG,
+	SYSFW_CHASSIS_VENDOR,
+	SYSFW_CHASSIS_TYPE,
+	SYSFW_CHASSIS_VERSION,
+	SYSFW_CHASSIS_SERIAL,
+	SYSFW_CHASSIS_ASSET_TAG,
+	SYSFW_STRING_MAX,
+};
+
+struct sysfw_strmatch {
+	unsigned char slot;
+	char substr[79];
+};
+
+#ifndef __KERNEL__
+struct sysfw_id {
+	kernel_ulong_t callback;
+	kernel_ulong_t ident;
+	struct sysfw_strmatch matches[8];
+	kernel_ulong_t driver_data
+			__attribute__((aligned(sizeof(kernel_ulong_t))));
+	kernel_ulong_t exactmatch;
+};
+#else
+struct sysfw_id {
+	int (*callback)(const struct sysfw_id *);
+	const char *ident;
+	struct sysfw_strmatch matches[8];
+	void *driver_data;
+	kernel_ulong_t exactmatch;
+};
+/*
+ * struct sysfw_device_id appears during expansion of
+ * "MODULE_DEVICE_TABLE(sysfw, x)". Compiler doesn't look inside it
+ * but this is enough for gcc 3.4.6 to error out:
+ *	error: storage size of '__mod_sysfw_device_table' isn't known
+ */
+#define sysfw_device_id sysfw_system_id
+#endif
+
+#define SYSFW_MATCH(a, b)	{ a, b }
+
 #define PLATFORM_NAME_SIZE	20
 #define PLATFORM_MODULE_PREFIX	"platform:"
 
diff --git a/include/linux/sysfw.h b/include/linux/sysfw.h
new file mode 100644
index 0000000..8dcb674
--- /dev/null
+++ b/include/linux/sysfw.h
@@ -0,0 +1,113 @@
+/*
+ * include/linux/sysfw.h
+ *
+ * System Firmware (sysfw) Interface
+ */
+#ifndef _SYSFW_H
+#define _SYSFW_H
+
+#include <linux/mod_devicetable.h>
+
+/*
+ * sysfw_id and sysfw_field (the SYSFW_*) enums are defined in
+ * mod_devicetable.h
+ */
+
+/*
+ * sysfw_driver struct -- passed in to sysfw_init() by every firmware
+ * driver
+ */
+struct sysfw_driver {
+	const char *name;
+	/* find & evaluate firmware */
+	int (*init)(void);
+	/* late init, done after memory management is initialized */
+	int (*late)(void);
+	/* find a specific value in sysfw_field */
+	const char * (*lookup)(int field);
+	/* return date in YYYYMMDD format */
+	int (*date)(void);
+};
+
+#ifdef CONFIG_SYSTEM_FIRMWARE
+/**
+ * sysfw_driver_register - register a firmware driver
+ * @driver: sysfw_driver struct representing driver to register
+ *
+ * This function registers a sysfw driver.  Since the FW exists for the
+ * lifetime of the system there is no need for an unregister function.
+ */
+extern int sysfw_driver_register(struct sysfw_driver *driver);
+
+/**
+ * sysfw_lookup - find a sysfw value for a given field.
+ * @field: field to lookup
+ *
+ * This function calls into the system firmware and returns an appropriate
+ * string.
+ */
+extern const char *sysfw_lookup(int field);
+
+/**
+ * sysfw_get_date - returns the date of the firmware in YYYYMMDD format.
+ *
+ * Retuns the date the firmware was built in YYYYMMDD for easy comparisons.
+ */
+extern int sysfw_get_date(void);
+
+/**
+ * sysfw_vendor_is - checks to see if the vendor fields in the firmware
+ * contain a string
+ * @str: string to search for
+ *
+ * Returns true/false if the string is in any of the SYSFW_*VENDOR* fields.
+ */
+extern bool sysfw_vendor_is(const char *str);
+
+/**
+ * sysfw_callback - go through a list and run a function on all matching ids
+ * @list: list of ids to search
+ *
+ * This function takes a list of fields and strings to compare, attempts to
+ * compare the strings to the sysfw fields and runs a callback function for
+ * each positive comparison.  The comparison can stop by returning 0 in
+ * the callback function.  The function returns the first match in the list.
+ */
+extern const struct sysfw_id *sysfw_callback(const struct sysfw_id *list);
+
+/* Kernel internal only, run after memory management has been initialized */
+extern void sysfw_init_late(void);
+/* Kernel internal only, init's sysfs for the sysfw device */
+extern void sysfw_sysfs_device_init(const char *name);
+
+#else /* CONFIG_SYSTEM_FIRMWARE */
+
+static inline int sysfw_driver_register(struct sysfw_driver *driver)
+{
+	return -1;
+}
+static inline const char *sysfw_lookup(int field)
+{
+	return NULL;
+}
+static inline int sysfw_get_date(void)
+{
+	return 0;
+}
+static inline bool sysfw_vendor_is(const char *str)
+{
+	return false;
+}
+static const struct sysfw_id *sysfw_callback(const struct sysfw_id *list)
+{
+	return NULL;
+}
+static inline void sysfw_init_late(void)
+{
+	return;
+}
+#endif /* CONFIG_SYSTEM_FIRMWARE */
+
+#define sysfw_vendor_contains(str) sysfw_vendor_is(str)
+
+#endif /* _SYSFW_H */
diff --git a/init/main.c b/init/main.c
index d7211fa..8b99aeb 100644
--- a/init/main.c
+++ b/init/main.c
@@ -68,6 +68,7 @@
 #include <linux/shmem_fs.h>
 #include <linux/slab.h>
 #include <linux/perf_event.h>
+#include <linux/sysfw.h>
 
 #include <asm/io.h>
 #include <asm/bugs.h>
@@ -554,6 +555,8 @@ asmlinkage void __init start_kernel(void)
 
 	kmem_cache_init_late();
 
+	sysfw_init_late();
+
 	/*
 	 * HACK ALERT! This is early. We're enabling the console before
 	 * we've done PCI setups etc, and console_init() must be aware of
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index e26e2fb..92a27e3 100644
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -753,26 +753,26 @@ static int do_spi_entry(const char *filename, struct spi_device_id *id,
 	return 1;
 }
 
-static const struct dmifield {
+static const struct sysfwfield {
 	const char *prefix;
 	int field;
-} dmi_fields[] = {
-	{ "bvn", DMI_BIOS_VENDOR },
-	{ "bvr", DMI_BIOS_VERSION },
-	{ "bd",  DMI_BIOS_DATE },
-	{ "svn", DMI_SYS_VENDOR },
-	{ "pn",  DMI_PRODUCT_NAME },
-	{ "pvr", DMI_PRODUCT_VERSION },
-	{ "rvn", DMI_BOARD_VENDOR },
-	{ "rn",  DMI_BOARD_NAME },
-	{ "rvr", DMI_BOARD_VERSION },
-	{ "cvn", DMI_CHASSIS_VENDOR },
-	{ "ct",  DMI_CHASSIS_TYPE },
-	{ "cvr", DMI_CHASSIS_VERSION },
-	{ NULL,  DMI_NONE }
+} sysfw_fields[] = {
+	{ "bvn", SYSFW_BIOS_VENDOR },
+	{ "bvr", SYSFW_BIOS_VERSION },
+	{ "bd",  SYSFW_BIOS_DATE },
+	{ "svn", SYSFW_SYS_VENDOR },
+	{ "pn",  SYSFW_PRODUCT_NAME },
+	{ "pvr", SYSFW_PRODUCT_VERSION },
+	{ "rvn", SYSFW_BOARD_VENDOR },
+	{ "rn",  SYSFW_BOARD_NAME },
+	{ "rvr", SYSFW_BOARD_VERSION },
+	{ "cvn", SYSFW_CHASSIS_VENDOR },
+	{ "ct",  SYSFW_CHASSIS_TYPE },
+	{ "cvr", SYSFW_CHASSIS_VERSION },
+	{ NULL,  SYSFW_NONE }
 };
 
-static void dmi_ascii_filter(char *d, const char *s)
+static void sysfw_ascii_filter(char *d, const char *s)
 {
 	/* Filter out characters we don't want to see in the modalias string */
 	for (; *s; s++)
@@ -783,20 +783,20 @@ static void dmi_ascii_filter(char *d, const char *s)
 }
 
 
-static int do_dmi_entry(const char *filename, struct dmi_system_id *id,
-			char *alias)
+static int do_sysfw_entry(const char *filename, struct sysfw_id *id,
+			  char *alias)
 {
 	int i, j;
 
-	sprintf(alias, "dmi*");
+	sprintf(alias, "sysfw*");
 
-	for (i = 0; i < ARRAY_SIZE(dmi_fields); i++) {
+	for (i = 0; i < ARRAY_SIZE(sysfw_fields); i++) {
 		for (j = 0; j < 4; j++) {
 			if (id->matches[j].slot &&
-			    id->matches[j].slot == dmi_fields[i].field) {
+			    id->matches[j].slot == sysfw_fields[i].field) {
 				sprintf(alias + strlen(alias), ":%s*",
-					dmi_fields[i].prefix);
-				dmi_ascii_filter(alias + strlen(alias),
+					sysfw_fields[i].prefix);
+				sysfw_ascii_filter(alias + strlen(alias),
 						 id->matches[j].substr);
 				strcat(alias, "*");
 			}
@@ -1002,10 +1002,10 @@ void handle_moddevtable(struct module *mod, struct elf_info *info,
 		do_table(symval, sym->st_size,
 			 sizeof(struct spi_device_id), "spi",
 			 do_spi_entry, mod);
-	else if (sym_is(symname, "__mod_dmi_device_table"))
+	else if (sym_is(symname, "__mod_sysfw_device_table"))
 		do_table(symval, sym->st_size,
-			 sizeof(struct dmi_system_id), "dmi",
-			 do_dmi_entry, mod);
+			 sizeof(struct sysfw_id), "sysfw",
+			 do_sysfw_entry, mod);
 	else if (sym_is(symname, "__mod_platform_device_table"))
 		do_table(symval, sym->st_size,
 			 sizeof(struct platform_device_id), "platform",
-- 
1.6.5.2

Re: [lm-sensors] [PATCH 01/34] System Firmware Interface

[Jean Delvare]

On Mon, 18 Jul 2011 09:08:15 -0400, Prarit Bhargava wrote:
> This patch introduces a general System Firmware interface to the kernel, called
> sysfw.
> 
> Inlcluded in this interface is the ability to search a standard set of fields,
> sysfw_lookup().  The fields are currently based upon the x86 and ia64 SMBIOS
> fields but exapandable to fields that other arches may introduce.  Also
> included is  the ability to search and match against those fields, and run
> a callback function against the matches, sysfw_callback().
> 
> Modify module code to use sysfw instead of old DMI interface.

This is a HUGE patch set. You'd need to have a good reason for such a
big and intrusive change, yet I see no such reason explained. I
understand that we _can_ abstract system information interfaces, but
just because we can doesn't mean we have to. I would at least wait for
a second DMI-like interface to be widely implemented and support before
any attempt to abstract, otherwise your design is bound to be missing
the target. And even then, you'd still need to convince me that there
is a need for a unified interface to access both backends at once. I
would guess that you know what backend is present on a system when you
try to identify it.

At this point, I see the work needed to review your patches, the risk
of regressions due to the large size of the patch set, but I don't see
any immediate benefit. Thus I am not going to look into it at all,
sorry.

-- 
Jean Delvare

[PATCH 02/34] New SMBIOS driver for x86 and ia64.

[Prarit Bhargava]

This, along with the System Firmware (sysfw) interface replaces the existing
DMI code in the kernel.

This subsystem provides functionality for individual drivers to access
the SMBIOS structures for their own use, smbios_walk(), as well as some
helper functions for some kernel modules.

Cc: linux-ia64-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org
Cc: linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-ide-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: openipmi-developer-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Cc: platform-driver-x86-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-crypto-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-ide-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Cc: evel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org
Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: device-drivers-devel-ZG0+EudsQA8dtHy/vicBwGD2FQJk+8+b@public.gmane.org
Cc: linux-watchdog-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org
Cc: dz-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org
Cc: rpurdie-Fm38FmjxZ/leoWH0uzbU5w@public.gmane.org
Cc: eric.piel-VkQ1JFuSMpfAbQlEx87xDw@public.gmane.org
Cc: abelay-3s7WtUTddSA@public.gmane.org
Cc: johnpol-9fLWQ3dKdXwox3rIn2DAYQ@public.gmane.org
Signed-off-by: Prarit Bhargava <prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 Documentation/ABI/obsolete/sysfs-dmi   |   40 ++
 Documentation/ABI/testing/sysfw-smbios |   36 ++
 arch/ia64/Kconfig                      |    5 +
 arch/ia64/include/asm/smbios.h         |   12 +
 arch/x86/Kconfig                       |   10 +
 arch/x86/include/asm/smbios.h          |   19 +
 drivers/firmware/Kconfig               |   20 +
 drivers/firmware/Makefile              |    2 +
 drivers/firmware/smbios-sysfs.c        |  705 ++++++++++++++++++++++++++++++++
 drivers/firmware/smbios.c              |  687 +++++++++++++++++++++++++++++++
 include/linux/smbios.h                 |  243 +++++++++++
 11 files changed, 1779 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/ABI/obsolete/sysfs-dmi
 create mode 100644 Documentation/ABI/testing/sysfw-smbios
 create mode 100644 arch/ia64/include/asm/smbios.h
 create mode 100644 arch/x86/include/asm/smbios.h
 create mode 100644 drivers/firmware/smbios-sysfs.c
 create mode 100644 drivers/firmware/smbios.c
 create mode 100644 include/linux/smbios.h

diff --git a/Documentation/ABI/obsolete/sysfs-dmi b/Documentation/ABI/obsolete/sysfs-dmi
new file mode 100644
index 0000000..547dc4b
--- /dev/null
+++ b/Documentation/ABI/obsolete/sysfs-dmi
@@ -0,0 +1,40 @@
+What:		/sys/class/dmi
+Date:		July 2011
+KernelVersion:	3.0
+Contact:	Prarit Bhargava <prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
+Description:
+		The dmi class is exported if CONFIG_SMBIOS_DMI_COMPAT is
+		set.
+
+		The DMI code currently exposes several values via sysfs.
+		These values are:
+
+		bios_date: The datestamp of the BIOS.
+		bios_vendor: The company that wrote the BIOS.
+		bios_version: The version of the BIOS.
+		board_asset_tag: A unique identifier for the system
+				 motherboard.
+		board_name: The name of the type of motherboard.
+		board_serial: The serial number of the motherboard.
+		board_vendor: The company that designed the motherboard.
+		board_version: The version of the motherboard.
+		chassis_asset_tag: A unique identifier for the chassis.
+		chassis_serial: The serial number of the chassis.
+		chassis_type: The type of chassis.
+		chassis_vendor: The company that designed the chassis.
+		chassis_version: The version of the chassis.
+		product_name: The name of the system as determined by the
+			      OEM.
+		product_serial: The serial number of the system.
+		product_uuid: A unique UUID for the system.
+		product_version: The version number of the system.
+		sys_vendor: The OEM company for the system.
+
+		In addition to these the standard class files are exposed
+		for DMI (uvent, power, subsystem) as well as a modalias
+		file.
+
+		The dmi class is deprecated and should not be used by new
+		code.  Existing code should be migrated to use
+		/sys/class/smbios/* which exposes the same data.
+		The dmi class link will be removed in July of 2013.
diff --git a/Documentation/ABI/testing/sysfw-smbios b/Documentation/ABI/testing/sysfw-smbios
new file mode 100644
index 0000000..c6045f1
--- /dev/null
+++ b/Documentation/ABI/testing/sysfw-smbios
@@ -0,0 +1,36 @@
+What:		/sys/bus/sysfw
+Date:		May 1 2011
+KernelVersion:	2.6.39
+Contact:	Prarit Bhargava <prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
+Description:
+		The dmi class is exported if CONFIG_SMBIOS is set.
+
+		The SMBIOS code currently exposes several values via sysfs
+		primarily for use by module handling code.
+
+		These values are:
+
+		bios_date: The datestamp of the BIOS.
+		bios_vendor: The company that wrote the BIOS.
+		bios_version: The version of the BIOS.
+		board_asset_tag: A unique identifier for the system
+				 motherboard.
+		board_name: The name of the type of motherboard.
+		board_serial: The serial number of the motherboard.
+		board_vendor: The company that designed the motherboard.
+		board_version: The version of the motherboard.
+		chassis_asset_tag: A unique identifier for the chassis.
+		chassis_serial: The serial number of the chassis.
+		chassis_type: The type of chassis.
+		chassis_vendor: The company that designed the chassis.
+		chassis_version: The version of the chassis.
+		product_name: The name of the system as determined by the
+			      OEM.
+		product_serial: The serial number of the system.
+		product_uuid: A unique UUID for the system.
+		product_version: The version number of the system.
+		sys_vendor: The OEM company for the system.
+
+		In addition to these the standard class files are exposed
+		for SMBIOS (uvent, power, subsystem) as well as a modalias
+		file.
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 38280ef..ac14d3c 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -93,6 +93,11 @@ config DMI
 	bool
 	default y
 
+config SMBIOS
+	bool
+	default y
+	depends on SYSTEM_FIRMWARE
+
 config EFI
 	bool
 	default y
diff --git a/arch/ia64/include/asm/smbios.h b/arch/ia64/include/asm/smbios.h
new file mode 100644
index 0000000..19c0019
--- /dev/null
+++ b/arch/ia64/include/asm/smbios.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_SMBIOS_H
+#define _ASM_SMBIOS_H 1
+
+#include <linux/slab.h>
+#include <asm/io.h>
+
+/* Use normal IO mappings for SMBIOS */
+#define smbios_ioremap ioremap
+#define smbios_iounmap(x, l) iounmap(x)
+#define smbios_alloc(l) kmalloc(l, GFP_ATOMIC)
+
+#endif
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index da34972..e7cdde8 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -635,6 +635,16 @@ config DMI
 	  affected by entries in the DMI blacklist. Required by PNP
 	  BIOS code.
 
+config SMBIOS
+	depends on SYSTEM_FIRMWARE
+	bool "Enable SMBIOS scanning" if EXPERT
+	default y
+	---help---
+	  Enabled scanning of SMBIOS to identify machine quirks. Say Y
+	  here unless you have verified that your setup is not
+	  affected by entries in the SMBIOS blacklist. Required by PNP
+	  BIOS code.
+
 config GART_IOMMU
 	bool "GART IOMMU support" if EXPERT
 	default y
diff --git a/arch/x86/include/asm/smbios.h b/arch/x86/include/asm/smbios.h
new file mode 100644
index 0000000..767270b
--- /dev/null
+++ b/arch/x86/include/asm/smbios.h
@@ -0,0 +1,19 @@
+#ifndef _ASM_X86_SMBIOS_H
+#define _ASM_X86_SMBIOS_H
+
+#include <linux/compiler.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+#include <asm/setup.h>
+
+static __always_inline __init void *smbios_alloc(unsigned len)
+{
+	return extend_brk(len, sizeof(int));
+}
+
+/* Use early IO mappings for SMBIOS because it's initialized early */
+#define smbios_ioremap early_ioremap
+#define smbios_iounmap early_iounmap
+
+#endif /* _ASM_X86_SMBIOS_H */
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 79a1b9d..23066d8 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -182,6 +182,26 @@ config SYSTEM_FIRMWARE_DMI_COMPAT
 	  should not be used in new user space software.  Please see
 	  Documentation/ABI for details.
 
+config SYSTEM_FIRMWARE_DMI_COMPAT
+	bool "Export dmi compatibility class in sysfs"
+	depends on SMBIOSID
+	default y
+	help
+	  This exposes /sys/class/dmi/* as a pointer to the sysfw class for
+	  old software.  This is purely a backwards compatability feature and
+	  should not be used in new user space software.  Please see
+	  Documentation/ABI for details.
+
+config SMBIOS_SYSFS
+	tristate "SMBIOS table support in sysfs"
+	depends on SYSFS && SMBIOS
+	help
+	  Say Y or M here to enable the exporting of the raw SMBIOS table
+	  data via sysfs.  This is useful for consuming the data without
+	  requiring any access to /dev/mem at all.  Tables are found
+	  under /sys/firmware/smbios when this option is enabled and
+	  loaded.
+
 source "drivers/firmware/google/Kconfig"
 
 endmenu
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 41bc64a..5c9d81f 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -16,3 +16,5 @@ obj-$(CONFIG_SIGMA)		+= sigma.o
 obj-$(CONFIG_GOOGLE_FIRMWARE)	+= google/
 obj-$(CONFIG_SYSTEM_FIRMWARE)	+= sysfw.o
 obj-$(CONFIG_SYSTEM_FIRMWARE_SYSFS)	+= sysfw-sysfs.o
+obj-$(CONFIG_SMBIOS)		+= smbios.o
+obj-$(CONFIG_SMBIOS_SYSFS)	+= smbios-sysfs.o
diff --git a/drivers/firmware/smbios-sysfs.c b/drivers/firmware/smbios-sysfs.c
new file mode 100644
index 0000000..9fd36a6
--- /dev/null
+++ b/drivers/firmware/smbios-sysfs.c
@@ -0,0 +1,705 @@
+/*
+ * smbios-sysfs.c
+ *
+ * This module exports the SMBIOS tables read-only to userspace through the
+ * sysfs file system.
+ *
+ * Data is currently found below
+ *    /sys/firmware/smbios/...
+ *
+ * SMBIOS attributes are presented in attribute files with names
+ * formatted using %d-%d, so that the first integer indicates the
+ * structure type (0-255), and the second field is the instance of that
+ * entry.
+ *
+ * Copyright 2011 Google, Inc.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kobject.h>
+#include <linux/smbios.h>
+#include <linux/capability.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/io.h>
+
+#define MAX_ENTRY_TYPE 255 /* Most of these aren't used, but we consider
+			      the top entry type is only 8 bits */
+
+struct smbios_sysfs_entry {
+	struct smbios_header dh;
+	struct kobject kobj;
+	int instance;
+	int position;
+	struct list_head list;
+	struct kobject *child;
+};
+
+/*
+ * Global list of smbios_sysfs_entry.  Even though this should only be
+ * manipulated at setup and teardown, the lazy nature of the kobject
+ * system means we get lazy removes.
+ */
+static LIST_HEAD(entry_list);
+static DEFINE_SPINLOCK(entry_list_lock);
+
+/* smbios_sysfs_attribute - Top level attribute. used by all entries. */
+struct smbios_sysfs_attribute {
+	struct attribute attr;
+	ssize_t (*show)(struct smbios_sysfs_entry *entry, char *buf);
+};
+
+#define SMBIOS_SYSFS_ATTR(_entry, _name) \
+struct smbios_sysfs_attribute smbios_sysfs_attr_##_entry##_##_name = { \
+	.attr = {.name = __stringify(_name), .mode = 0400}, \
+	.show = smbios_sysfs_##_entry##_##_name, \
+}
+
+/*
+ * smbios_sysfs_mapped_attribute - Attribute where we require the entry be
+ * mapped in.  Use in conjunction with smbios_sysfs_specialize_attr_ops.
+ */
+struct smbios_sysfs_mapped_attribute {
+	struct attribute attr;
+	ssize_t (*show)(struct smbios_sysfs_entry *entry,
+			const struct smbios_header *dh,
+			char *buf);
+};
+
+#define SMBIOS_SYSFS_MAPPED_ATTR(_entry, _name) \
+struct smbios_sysfs_mapped_attribute smbios_sysfs_attr_##_entry##_##_name = { \
+	.attr = {.name = __stringify(_name), .mode = 0400}, \
+	.show = smbios_sysfs_##_entry##_##_name, \
+}
+
+/*************************************************
+ * Generic SMBIOS entry support.
+ *************************************************/
+static void smbios_entry_free(struct kobject *kobj)
+{
+	kfree(kobj);
+}
+
+static struct smbios_sysfs_entry *to_entry(struct kobject *kobj)
+{
+	return container_of(kobj, struct smbios_sysfs_entry, kobj);
+}
+
+static struct smbios_sysfs_attribute *to_attr(struct attribute *attr)
+{
+	return container_of(attr, struct smbios_sysfs_attribute, attr);
+}
+
+static ssize_t smbios_sysfs_attr_show(struct kobject *kobj,
+				      struct attribute *_attr, char *buf)
+{
+	struct smbios_sysfs_entry *entry = to_entry(kobj);
+	struct smbios_sysfs_attribute *attr = to_attr(_attr);
+
+	/* SMBIOS stuff is only ever admin visible */
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	return attr->show(entry, buf);
+}
+
+static const struct sysfs_ops smbios_sysfs_attr_ops = {
+	.show = smbios_sysfs_attr_show,
+};
+
+typedef ssize_t (*smbios_callback)(struct smbios_sysfs_entry *,
+				   const struct smbios_header *dh, void *);
+
+struct find_smbios_data {
+	struct smbios_sysfs_entry	*entry;
+	smbios_callback		callback;
+	void			*private;
+	int			instance_countdown;
+	ssize_t			ret;
+};
+
+static int find_smbios_entry_helper(const union smbios_struct *ss, void *_data)
+{
+	struct find_smbios_data *data = _data;
+	struct smbios_sysfs_entry *entry = data->entry;
+
+	/* Is this the entry we want? */
+	if (ss->header.type != entry->dh.type)
+		return SMBIOS_WALK_CONTINUE;
+
+	if (data->instance_countdown != 0) {
+		/* try the next instance? */
+		data->instance_countdown--;
+		return SMBIOS_WALK_CONTINUE;
+	}
+
+	/*
+	 * Don't ever revisit the instance.  Short circuit later
+	 * instances by letting the instance_countdown run negative
+	 */
+	data->instance_countdown--;
+
+	/* Found the entry */
+	data->ret = data->callback(entry, &ss->header, data->private);
+
+	return SMBIOS_WALK_STOP;
+}
+
+/* State for passing the read parameters through smbios_find_entry() */
+struct smbios_read_state {
+	char *buf;
+	loff_t pos;
+	size_t count;
+};
+
+static ssize_t find_smbios_entry(struct smbios_sysfs_entry *entry,
+				 smbios_callback callback, void *private)
+{
+	struct find_smbios_data data = {
+		.entry = entry,
+		.callback = callback,
+		.private = private,
+		.instance_countdown = entry->instance,
+		.ret = -EIO,  /* To signal the entry disappeared */
+	};
+	const union smbios_struct *ss;
+
+	ss = smbios_walk(find_smbios_entry_helper, &data);
+	if (!ss)
+		return -EINVAL;
+	return data.ret;
+}
+
+/*
+ * Calculate and return the byte length of the smbios entry identified by
+ * dh.  This includes both the formatted portion as well as the
+ * unformatted string space, including the two trailing nul characters.
+ */
+static size_t smbios_entry_length(const struct smbios_header *dh)
+{
+	const char *p = (const char *)dh;
+
+	p += dh->length;
+
+	while (p[0] || p[1])
+		p++;
+
+	return 2 + p - (const char *)dh;
+}
+
+/*************************************************
+ * Support bits for specialized SMBIOS entry support
+ *************************************************/
+struct smbios_entry_attr_show_data {
+	struct attribute *attr;
+	char *buf;
+};
+
+static ssize_t smbios_entry_attr_show_helper(struct smbios_sysfs_entry *entry,
+					     const struct smbios_header *dh,
+					     void *_data)
+{
+	struct smbios_entry_attr_show_data *data = _data;
+	struct smbios_sysfs_mapped_attribute *attr;
+
+	attr = container_of(data->attr,
+			    struct smbios_sysfs_mapped_attribute, attr);
+	return attr->show(entry, dh, data->buf);
+}
+
+static ssize_t smbios_entry_attr_show(struct kobject *kobj,
+				      struct attribute *attr,
+				      char *buf)
+{
+	struct smbios_entry_attr_show_data data = {
+		.attr = attr,
+		.buf  = buf,
+	};
+	/* Find the entry according to our parent and call the
+	 * normalized show method hanging off of the attribute */
+	return find_smbios_entry(to_entry(kobj->parent),
+				 smbios_entry_attr_show_helper, &data);
+}
+
+static const struct sysfs_ops smbios_sysfs_specialize_attr_ops = {
+	.show = smbios_entry_attr_show,
+};
+
+/*************************************************
+ * Specialized SMBIOS entry support.
+ *************************************************/
+
+/*** Type 15 - System Event Table ***/
+
+#define SMBIOS_SEL_ACCESS_METHOD_IO8	0x00
+#define SMBIOS_SEL_ACCESS_METHOD_IO2x8	0x01
+#define SMBIOS_SEL_ACCESS_METHOD_IO16	0x02
+#define SMBIOS_SEL_ACCESS_METHOD_PHYS32	0x03
+#define SMBIOS_SEL_ACCESS_METHOD_GPNV	0x04
+
+struct smbios_system_event_log {
+	struct smbios_header header;
+	u16	area_length;
+	u16	header_start_offset;
+	u16	data_start_offset;
+	u8	access_method;
+	u8	status;
+	u32	change_token;
+	union {
+		struct {
+			u16 index_addr;
+			u16 data_addr;
+		} io;
+		u32	phys_addr32;
+		u16	gpnv_handle;
+		u32	access_method_address;
+	};
+	u8	header_format;
+	u8	type_descriptors_supported_count;
+	u8	per_log_type_descriptor_length;
+	u8	supported_log_type_descriptos[0];
+} __packed;
+
+#define SMBIOS_SYSFS_SEL_FIELD(_field) \
+static ssize_t smbios_sysfs_sel_##_field(struct smbios_sysfs_entry *entry, \
+					 const struct smbios_header *dh, \
+					 char *buf) \
+{ \
+	struct smbios_system_event_log sel; \
+	if (sizeof(sel) > smbios_entry_length(dh)) \
+		return -EIO; \
+	memcpy(&sel, dh, sizeof(sel)); \
+	return sprintf(buf, "%u\n", sel._field); \
+} \
+static SMBIOS_SYSFS_MAPPED_ATTR(sel, _field)
+
+SMBIOS_SYSFS_SEL_FIELD(area_length);
+SMBIOS_SYSFS_SEL_FIELD(header_start_offset);
+SMBIOS_SYSFS_SEL_FIELD(data_start_offset);
+SMBIOS_SYSFS_SEL_FIELD(access_method);
+SMBIOS_SYSFS_SEL_FIELD(status);
+SMBIOS_SYSFS_SEL_FIELD(change_token);
+SMBIOS_SYSFS_SEL_FIELD(access_method_address);
+SMBIOS_SYSFS_SEL_FIELD(header_format);
+SMBIOS_SYSFS_SEL_FIELD(type_descriptors_supported_count);
+SMBIOS_SYSFS_SEL_FIELD(per_log_type_descriptor_length);
+
+static struct attribute *smbios_sysfs_sel_attrs[] = {
+	&smbios_sysfs_attr_sel_area_length.attr,
+	&smbios_sysfs_attr_sel_header_start_offset.attr,
+	&smbios_sysfs_attr_sel_data_start_offset.attr,
+	&smbios_sysfs_attr_sel_access_method.attr,
+	&smbios_sysfs_attr_sel_status.attr,
+	&smbios_sysfs_attr_sel_change_token.attr,
+	&smbios_sysfs_attr_sel_access_method_address.attr,
+	&smbios_sysfs_attr_sel_header_format.attr,
+	&smbios_sysfs_attr_sel_type_descriptors_supported_count.attr,
+	&smbios_sysfs_attr_sel_per_log_type_descriptor_length.attr,
+	NULL,
+};
+
+
+static struct kobj_type smbios_system_event_log_ktype = {
+	.release = smbios_entry_free,
+	.sysfs_ops = &smbios_sysfs_specialize_attr_ops,
+	.default_attrs = smbios_sysfs_sel_attrs,
+};
+
+typedef u8 (*sel_io_reader)(const struct smbios_system_event_log *sel,
+			    loff_t offset);
+
+static DEFINE_MUTEX(io_port_lock);
+
+static u8 read_sel_8bit_indexed_io(const struct smbios_system_event_log *sel,
+				   loff_t offset)
+{
+	u8 ret;
+
+	mutex_lock(&io_port_lock);
+	outb((u8)offset, sel->io.index_addr);
+	ret = inb(sel->io.data_addr);
+	mutex_unlock(&io_port_lock);
+	return ret;
+}
+
+static u8 read_sel_2x8bit_indexed_io(const struct smbios_system_event_log *sel,
+				     loff_t offset)
+{
+	u8 ret;
+
+	mutex_lock(&io_port_lock);
+	outb((u8)offset, sel->io.index_addr);
+	outb((u8)(offset >> 8), sel->io.index_addr + 1);
+	ret = inb(sel->io.data_addr);
+	mutex_unlock(&io_port_lock);
+	return ret;
+}
+
+static u8 read_sel_16bit_indexed_io(const struct smbios_system_event_log *sel,
+				    loff_t offset)
+{
+	u8 ret;
+
+	mutex_lock(&io_port_lock);
+	outw((u16)offset, sel->io.index_addr);
+	ret = inb(sel->io.data_addr);
+	mutex_unlock(&io_port_lock);
+	return ret;
+}
+
+static sel_io_reader sel_io_readers[] = {
+	[SMBIOS_SEL_ACCESS_METHOD_IO8]	= read_sel_8bit_indexed_io,
+	[SMBIOS_SEL_ACCESS_METHOD_IO2x8]	= read_sel_2x8bit_indexed_io,
+	[SMBIOS_SEL_ACCESS_METHOD_IO16]	= read_sel_16bit_indexed_io,
+};
+
+static ssize_t smbios_sel_raw_read_io(struct smbios_sysfs_entry *entry,
+				      const struct smbios_system_event_log *sel,
+				      char *buf, loff_t pos, size_t count)
+{
+	ssize_t wrote = 0;
+
+	sel_io_reader io_reader = sel_io_readers[sel->access_method];
+
+	while (count && pos < sel->area_length) {
+		count--;
+		*(buf++) = io_reader(sel, pos++);
+		wrote++;
+	}
+
+	return wrote;
+}
+
+static ssize_t smbios_sel_raw_read_phys32(struct smbios_sysfs_entry *entry,
+				      const struct smbios_system_event_log *sel,
+					  char *buf, loff_t pos, size_t count)
+{
+	u8 __iomem *mapped;
+	ssize_t wrote = 0;
+
+	mapped = ioremap(sel->access_method_address, sel->area_length);
+	if (!mapped)
+		return -EIO;
+
+	while (count && pos < sel->area_length) {
+		count--;
+		*(buf++) = readb(mapped + pos++);
+		wrote++;
+	}
+
+	iounmap(mapped);
+	return wrote;
+}
+
+static ssize_t smbios_sel_raw_read_helper(struct smbios_sysfs_entry *entry,
+					  const struct smbios_header *dh,
+					  void *_state)
+{
+	struct smbios_read_state *state = _state;
+	struct smbios_system_event_log sel;
+
+	if (sizeof(sel) > smbios_entry_length(dh))
+		return -EIO;
+
+	memcpy(&sel, dh, sizeof(sel));
+
+	switch (sel.access_method) {
+	case SMBIOS_SEL_ACCESS_METHOD_IO8:
+	case SMBIOS_SEL_ACCESS_METHOD_IO2x8:
+	case SMBIOS_SEL_ACCESS_METHOD_IO16:
+		return smbios_sel_raw_read_io(entry, &sel, state->buf,
+					      state->pos, state->count);
+	case SMBIOS_SEL_ACCESS_METHOD_PHYS32:
+		return smbios_sel_raw_read_phys32(entry, &sel, state->buf,
+						  state->pos, state->count);
+	case SMBIOS_SEL_ACCESS_METHOD_GPNV:
+		pr_info("smbios-sysfs: GPNV support missing.\n");
+		return -EIO;
+	default:
+		pr_info("smbios-sysfs: Unknown access method %02x\n",
+			sel.access_method);
+		return -EIO;
+	}
+}
+
+static ssize_t smbios_sel_raw_read(struct file *filp, struct kobject *kobj,
+				   struct bin_attribute *bin_attr,
+				   char *buf, loff_t pos, size_t count)
+{
+	struct smbios_sysfs_entry *entry = to_entry(kobj->parent);
+	struct smbios_read_state state = {
+		.buf = buf,
+		.pos = pos,
+		.count = count,
+	};
+
+	return find_smbios_entry(entry, smbios_sel_raw_read_helper, &state);
+}
+
+static struct bin_attribute smbios_sel_raw_attr = {
+	.attr = {.name = "raw_event_log", .mode = 0400},
+	.read = smbios_sel_raw_read,
+};
+
+static int smbios_system_event_log(struct smbios_sysfs_entry *entry)
+{
+	int ret;
+
+	entry->child = kzalloc(sizeof(*entry->child), GFP_KERNEL);
+	if (!entry->child)
+		return -ENOMEM;
+	ret = kobject_init_and_add(entry->child,
+				   &smbios_system_event_log_ktype,
+				   &entry->kobj,
+				   "system_event_log");
+	if (ret)
+		goto out_free;
+
+	ret = sysfs_create_bin_file(entry->child, &smbios_sel_raw_attr);
+	if (ret)
+		goto out_del;
+
+	return 0;
+
+out_del:
+	kobject_del(entry->child);
+out_free:
+	kfree(entry->child);
+	return ret;
+}
+
+/*************************************************
+ * Generic SMBIOS entry support.
+ *************************************************/
+
+static ssize_t smbios_sysfs_entry_length(struct smbios_sysfs_entry *entry,
+					 char *buf)
+{
+	return sprintf(buf, "%d\n", entry->dh.length);
+}
+
+static ssize_t smbios_sysfs_entry_handle(struct smbios_sysfs_entry *entry,
+					 char *buf)
+{
+	return sprintf(buf, "%d\n", entry->dh.handle);
+}
+
+static ssize_t smbios_sysfs_entry_type(struct smbios_sysfs_entry *entry,
+				       char *buf)
+{
+	return sprintf(buf, "%d\n", entry->dh.type);
+}
+
+static ssize_t smbios_sysfs_entry_instance(struct smbios_sysfs_entry *entry,
+					   char *buf)
+{
+	return sprintf(buf, "%d\n", entry->instance);
+}
+
+static ssize_t smbios_sysfs_entry_position(struct smbios_sysfs_entry *entry,
+					   char *buf)
+{
+	return sprintf(buf, "%d\n", entry->position);
+}
+
+static SMBIOS_SYSFS_ATTR(entry, length);
+static SMBIOS_SYSFS_ATTR(entry, handle);
+static SMBIOS_SYSFS_ATTR(entry, type);
+static SMBIOS_SYSFS_ATTR(entry, instance);
+static SMBIOS_SYSFS_ATTR(entry, position);
+
+static struct attribute *smbios_sysfs_entry_attrs[] = {
+	&smbios_sysfs_attr_entry_length.attr,
+	&smbios_sysfs_attr_entry_handle.attr,
+	&smbios_sysfs_attr_entry_type.attr,
+	&smbios_sysfs_attr_entry_instance.attr,
+	&smbios_sysfs_attr_entry_position.attr,
+	NULL,
+};
+
+static ssize_t smbios_entry_raw_read_helper(struct smbios_sysfs_entry *entry,
+					    const struct smbios_header *dh,
+					    void *_state)
+{
+	struct smbios_read_state *state = _state;
+	size_t entry_length;
+
+	entry_length = smbios_entry_length(dh);
+
+	return memory_read_from_buffer(state->buf, state->count,
+				       &state->pos, dh, entry_length);
+}
+
+static ssize_t smbios_entry_raw_read(struct file *filp,
+				     struct kobject *kobj,
+				     struct bin_attribute *bin_attr,
+				     char *buf, loff_t pos, size_t count)
+{
+	struct smbios_sysfs_entry *entry = to_entry(kobj);
+	struct smbios_read_state state = {
+		.buf = buf,
+		.pos = pos,
+		.count = count,
+	};
+
+	return find_smbios_entry(entry, smbios_entry_raw_read_helper, &state);
+}
+
+static const struct bin_attribute smbios_entry_raw_attr = {
+	.attr = {.name = "raw", .mode = 0400},
+	.read = smbios_entry_raw_read,
+};
+
+static void smbios_sysfs_entry_release(struct kobject *kobj)
+{
+	struct smbios_sysfs_entry *entry = to_entry(kobj);
+	sysfs_remove_bin_file(&entry->kobj, &smbios_entry_raw_attr);
+	spin_lock(&entry_list_lock);
+	list_del(&entry->list);
+	spin_unlock(&entry_list_lock);
+	kfree(entry);
+}
+
+static struct kobj_type smbios_sysfs_entry_ktype = {
+	.release = smbios_sysfs_entry_release,
+	.sysfs_ops = &smbios_sysfs_attr_ops,
+	.default_attrs = smbios_sysfs_entry_attrs,
+};
+
+static struct kobject *smbios_kobj;
+static struct kset *smbios_kset;
+
+/* Global count of all instances seen.  Only for setup */
+static int __initdata instance_counts[MAX_ENTRY_TYPE + 1];
+
+/* Global positional count of all entries seen.  Only for setup */
+static int __initdata position_count;
+
+static int __init smbios_sysfs_register_handle(const union smbios_struct *ss,
+					       void *_ret)
+{
+	struct smbios_sysfs_entry *entry;
+	int *ret = _ret;
+
+	/* Allocate and register a new entry into the entries set */
+	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+	if (!entry) {
+		*ret = -ENOMEM;
+		return SMBIOS_WALK_STOP;
+	}
+
+	/* Set the key */
+	memcpy(&entry->dh, &ss->header, sizeof(struct smbios_header));
+	entry->instance = instance_counts[ss->header.type]++;
+	entry->position = position_count++;
+
+	entry->kobj.kset = smbios_kset;
+	*ret = kobject_init_and_add(&entry->kobj, &smbios_sysfs_entry_ktype,
+				    NULL,
+				    "%d-%d", ss->header.type, entry->instance);
+
+	if (*ret) {
+		kfree(entry);
+		return SMBIOS_WALK_STOP;
+	}
+
+	/* Thread on the global list for cleanup */
+	spin_lock(&entry_list_lock);
+	list_add_tail(&entry->list, &entry_list);
+	spin_unlock(&entry_list_lock);
+
+	/* Handle specializations by type */
+	switch (ss->header.type) {
+	case 15:
+		/* System Event Log */
+		*ret = smbios_system_event_log(entry);
+		break;
+	default:
+		/* No specialization */
+		break;
+	}
+	if (*ret)
+		goto out_err;
+
+	/* Create the raw binary file to access the entry */
+	*ret = sysfs_create_bin_file(&entry->kobj, &smbios_entry_raw_attr);
+	if (*ret)
+		goto out_err;
+
+	return SMBIOS_WALK_CONTINUE;
+out_err:
+	kobject_put(entry->child);
+	kobject_put(&entry->kobj);
+	return SMBIOS_WALK_STOP;
+}
+
+static void cleanup_entry_list(void)
+{
+	struct smbios_sysfs_entry *entry, *next;
+
+	/* No locks, we are on our way out */
+	list_for_each_entry_safe(entry, next, &entry_list, list) {
+		kobject_put(entry->child);
+		kobject_put(&entry->kobj);
+	}
+}
+
+static int __init smbios_sysfs_init(void)
+{
+	int error = -ENOMEM;
+	int val, ret;
+	const union smbios_struct *ss;
+
+	/* Set up our directory */
+	smbios_kobj = kobject_create_and_add("smbios", firmware_kobj);
+	if (!smbios_kobj)
+		goto err;
+
+	smbios_kset = kset_create_and_add("entries", NULL, smbios_kobj);
+	if (!smbios_kset)
+		goto err;
+
+	val = 0;
+	ss = smbios_walk(smbios_sysfs_register_handle, &val);
+	if (ss) {
+		error = -EIO;
+		goto err;
+	}
+	if (val) {
+		error = val;
+		goto err;
+	}
+
+#ifdef CONFIG_SYSTEM_FIRMWARE_DMI_COMPAT
+	ret = sysfs_create_link(firmware_kobj, smbios_kobj, "dmi");
+	if (!ret)
+		pr_debug("smbios-sysfs: DMI compatibility failed.\n");
+#endif
+	pr_debug("smbios-sysfs: loaded.\n");
+
+	return 0;
+err:
+	cleanup_entry_list();
+	kset_unregister(smbios_kset);
+	kobject_put(smbios_kobj);
+	return error;
+}
+
+/* clean up everything. */
+static void __exit smbios_sysfs_exit(void)
+{
+	pr_debug("smbios-sysfs: unloading.\n");
+	cleanup_entry_list();
+	kset_unregister(smbios_kset);
+	kobject_put(smbios_kobj);
+}
+
+module_init(smbios_sysfs_init);
+module_exit(smbios_sysfs_exit);
+
+MODULE_AUTHOR("Mike Waychison <mikew-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>");
+MODULE_DESCRIPTION("SMBIOS sysfs support");
+MODULE_LICENSE("GPL");
diff --git a/drivers/firmware/smbios.c b/drivers/firmware/smbios.c
new file mode 100644
index 0000000..ff83ae5
--- /dev/null
+++ b/drivers/firmware/smbios.c
@@ -0,0 +1,687 @@
+/*
+ * SMBIOS support
+ *
+ * started by Prarit Bhargava, Copyright (C) 2011 Red Hat, Inc.
+ *
+ * SMBIOS interpretation
+ *
+ * Some bits copied directly from original dmi*.c files
+ */
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/smbios.h>
+#include <linux/efi.h>
+#include <linux/bootmem.h>
+#include <linux/sysfw.h>
+#include <linux/pci.h>
+
+#include <asm/smbios.h>
+
+/*
+ * "The SMBIOS Specification addresses how motherboard and system vendors
+ * present management information about their products in a standard format by
+ * extending the BIOS interface on x86 architecture systems. The information is
+ * intended to allow generic instrumentation to deliver this information to
+ * management applications that use DMI, CIM or direct access, eliminating the
+ * need for error prone operations like probing system hardware for presence
+ * detection."
+ *
+ * From http://www.dmtf.org/standards/smbios
+ *
+ * ... Grab the Spec.  It'll help.
+ */
+
+/*
+ * SMBIOS Structure Table Entry Point, STEP
+ */
+struct smbios_step {
+	char	anchor_string[4];	/* 0x0, always is "_SM_" */
+	u8	checksum;
+	u8	length;
+	u8	major;
+	u8	minor;
+	u16	max_size;
+	u8	eps_revision;
+	u8	reserved[5];
+	u8	dmi_string[5];		/* 0x10, always is "_DMI_" */
+	u8	intermediate_chksum;
+	u16	struct_len;
+	u32	struct_addr;
+	u16	num_structs;
+	u8	bcd_revision;
+} __packed;
+static struct smbios_step smbios_step;
+
+/* is there an SMBIOS? */
+int smbios_available;
+EXPORT_SYMBOL_GPL(smbios_available);
+
+/* Address of the actual SMBIOS struct */
+static unsigned long smbios_addr;
+
+/* Start address of the SMBIOS tables */
+static u32 smbios_base;
+/* Length of the all the SMBIOS tables */
+static u16 smbios_len;
+/* Number of SMBIOS tables */
+static u16 smbios_num;
+/*
+ * This is the BRK space or IO mapped address of the SMBIOS table.  SMBIOS is
+ * switched from BRK space and into the IO map in smbios_init_late().  After
+ * it is IO mapped, it MUST NOT be unmapped (o/w very bad things will happen).
+ */
+static u8 *smbios_map;
+
+/* We need to store the type field and the UUID somewhere. */
+static char smbios_type3_type[4];
+static char smbios_type1_uuid[16*2+4+1];
+
+/** find the first SMBIOS structure of a specific type */
+const union smbios_struct *smbios_find_struct(int type)
+{
+	int size = sizeof(struct smbios_header);
+	int i = 0;
+	u8 *data = smbios_map;
+	struct smbios_header *dm = NULL;
+
+	/*
+	 *	Stop when we see all the items the table claimed to have
+	 *	OR we run off the end of the table (also happens)
+	 */
+	while ((i < smbios_num) &&
+	       (data - smbios_map + size) <= smbios_len) {
+		dm = (struct smbios_header *)data;
+
+		/*
+		 *  We want to know the total length (formatted area and
+		 *  strings) before returning to make sure we don't return
+		 *  a partial structure
+		 */
+		data += dm->length;
+		while ((data - smbios_map < smbios_len - 1) &&
+		       (data[0] || data[1]))
+			data++;
+		if ((data - smbios_map < smbios_len - 1) &&
+		    (type == dm->type)) {
+			break;
+		}
+		data += 2;
+		i++;
+	}
+	/* just return the address */
+	return (const union smbios_struct *)dm;
+}
+
+static const char smbios_empty_string[] = "        ";
+
+/**
+ * smbios_get_string -- return a string from an SMBIOS structure
+ * @ss: pointer to structure being examined
+ * @s: number of string being examined
+ *
+ * This function returns a string within the structure ss.  Many SMBIOS
+ * structures have their strings at the end of the structure, and the location
+ * of each string is enumerated throughout the structure.
+ *
+ * For example,  The BIOS Information structure, type0, has the BIOS Version
+ * at offset 0x6, which contains a number enumerating the strings at the end
+ * of the structure.
+ *
+ * ie) s is an actual _number_, not a pointer.
+ */
+const char *smbios_get_string(const union smbios_struct *ss, u8 s)
+{
+	const u8 *bp = ((u8 *) ss) + ss->header.length;
+
+	if (s) {
+		s--;
+		while (s > 0 && *bp) {
+			bp += strlen(bp) + 1;
+			s--;
+		}
+
+		if (*bp != 0) {
+			size_t len = strlen(bp)+1;
+			size_t cmp_len = len > 8 ? 8 : len;
+
+			if (!memcmp(bp, smbios_empty_string, cmp_len))
+				return smbios_empty_string;
+			return bp;
+		}
+	}
+
+	return "";
+}
+EXPORT_SYMBOL(smbios_get_string);
+
+#define smbios_find_ptr(_ptr, _struct_name, _type, _field)		 \
+	_struct_name = smbios_find_struct(_type);			 \
+	_ptr = smbios_get_string(_struct_name,				 \
+				 _struct_name->type##_type._field);
+
+static const char *smbios_sysfw_lookup(int field)
+{
+	const union smbios_struct *ss;
+	const u8 *ptr;
+
+	switch (field) {
+	case SYSFW_BIOS_VENDOR:
+		smbios_find_ptr(ptr, ss, 0, vendor);
+		break;
+	case SYSFW_BIOS_VERSION:
+		smbios_find_ptr(ptr, ss, 0, bios_version);
+		break;
+	case SYSFW_BIOS_DATE:
+		smbios_find_ptr(ptr, ss, 0, bios_release_date);
+		break;
+	case SYSFW_SYS_VENDOR:
+		smbios_find_ptr(ptr, ss, 1, manufacturer);
+		break;
+	case SYSFW_PRODUCT_NAME:
+		smbios_find_ptr(ptr, ss, 1, product_name);
+		break;
+	case SYSFW_PRODUCT_VERSION:
+		smbios_find_ptr(ptr, ss, 1, version);
+		break;
+	case SYSFW_PRODUCT_SERIAL:
+		smbios_find_ptr(ptr, ss, 1, serial_number);
+		break;
+	case SYSFW_PRODUCT_UUID:
+		ptr = smbios_type1_uuid;
+		break;
+	case SYSFW_BOARD_VENDOR:
+		smbios_find_ptr(ptr, ss, 2, manufacturer);
+		break;
+	case SYSFW_BOARD_NAME:
+		smbios_find_ptr(ptr, ss, 2, product);
+		break;
+	case SYSFW_BOARD_VERSION:
+		smbios_find_ptr(ptr, ss, 2, version);
+		break;
+	case SYSFW_BOARD_SERIAL:
+		smbios_find_ptr(ptr, ss, 2, serial_number);
+		break;
+	case SYSFW_BOARD_ASSET_TAG:
+		smbios_find_ptr(ptr, ss, 2, asset_tag);
+		break;
+	case SYSFW_CHASSIS_VENDOR:
+		smbios_find_ptr(ptr, ss, 3, manufacturer);
+		break;
+	case SYSFW_CHASSIS_TYPE:
+		ptr = smbios_type3_type;
+		break;
+	case SYSFW_CHASSIS_VERSION:
+		smbios_find_ptr(ptr, ss, 3, version);
+		break;
+	case SYSFW_CHASSIS_SERIAL:
+		smbios_find_ptr(ptr, ss, 3, serial_number);
+		break;
+	case SYSFW_CHASSIS_ASSET_TAG:
+		smbios_find_ptr(ptr, ss, 3, asset_tag_number);
+		break;
+	case SYSFW_STRING_MAX:
+	case SYSFW_NONE:
+	default:
+		ptr = NULL;
+		break;
+	}
+
+	return (const char *)ptr;
+}
+
+/* returns date in formation YYYYMMDD for easy comparisons */
+static int smbios_sysfw_get_date(void)
+{
+	const char *smbios_date;
+	int date, d, m, y;
+
+	/* SMBIOS BIOS DATE is in DD/MM/YYYY format */
+	smbios_date = smbios_sysfw_lookup(SYSFW_BIOS_DATE);
+	if (!smbios_date)
+		return 0;
+
+	sscanf(smbios_date, "%d/%d/%d", &d, &m, &y);
+	date = (y * 10000 + m * 100 + d);
+	return date;
+}
+
+static int __init smbios_sysfw_late(void)
+{
+	if (!smbios_available)
+		return -1;
+
+	/* This looks strange but we're unmapping the BRK space and
+	 * then mapping into memory after the memory subsystem has been
+	 * initialized. */
+	smbios_iounmap(smbios_map, smbios_len);
+	smbios_map = ioremap(smbios_base, smbios_len);
+	if (!smbios_map) {
+		smbios_available = 0;
+		WARN(1, "SMBIOS ioremap failed.");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+/* print pretty things */
+static void __init print_filtered(const char *info)
+{
+	const char *p;
+
+	if (!info)
+		return;
+
+	for (p = info; *p; p++)
+		if (isprint(*p))
+			printk(KERN_CONT "%c", *p);
+		else
+			printk(KERN_CONT "\\x%02x", *p & 0xff);
+}
+
+/* Dump some basic system information at the beginning of boot */
+static void __init smbios_boot_display(void)
+{
+	const char *board;	/* Board Name is optional */
+
+	if (smbios_available)
+		printk(KERN_DEBUG "SMBIOS: ");
+	else
+		printk(KERN_DEBUG "DMI: ");
+	print_filtered(smbios_sysfw_lookup(SYSFW_SYS_VENDOR));
+	printk(KERN_CONT " ");
+	print_filtered(smbios_sysfw_lookup(SYSFW_PRODUCT_NAME));
+	board = smbios_sysfw_lookup(SYSFW_BOARD_NAME);
+	if (board) {
+		printk(KERN_CONT "/");
+		print_filtered(board);
+	}
+	printk(KERN_CONT ", BIOS ");
+	print_filtered(smbios_sysfw_lookup(SYSFW_BIOS_VERSION));
+	printk(KERN_CONT " ");
+	print_filtered(smbios_sysfw_lookup(SYSFW_BIOS_DATE));
+	printk(KERN_CONT "\n");
+}
+
+static int __init smbios_sysfw_init(void)
+{
+	smbios_boot_display();
+	printk(KERN_INFO "Registered SMBIOS sysfw driver\n");
+	return 0;
+}
+
+static struct sysfw_driver __refdata smbios_sysfw_driver = {
+	.name = "smbios",
+	.init = smbios_sysfw_init,
+	.late = smbios_sysfw_late,
+	.lookup = smbios_sysfw_lookup,
+	.date = smbios_sysfw_get_date,
+};
+
+/*
+ * There are two special "core" values, that require their own strings.
+ * These are SYSFW_CHASSIS_TYPE(ss->type3->type) and
+ * SYSFW_PRODUCT_UUID(ss->type1->uuid).
+ */
+static void smbios_decode_core(void)
+{
+	const union smbios_struct *ss;
+
+	/* SYSFW_CHASSIS_TYPE */
+	ss = smbios_find_struct(3);
+	sprintf(smbios_type3_type, "%u", ss->type3.type & 0x7f);
+	/* SYSFW_PRODUCT_UUID */
+	ss = smbios_find_struct(1);
+	sprintf(smbios_type1_uuid, "%pUB", ss->type1.uuid);
+}
+
+/* This is only useful for legacy DMI table decoding. */
+static int __init dmi_checksum(const u8 *buf)
+{
+	u8 sum = 0;
+	int a;
+
+	for (a = 0; a < 15; a++)
+		sum += buf[a];
+
+	return sum == 0;
+}
+
+/* This is only useful for legacy DMI table decoding. */
+static int __init dmi_present(const char __iomem *p)
+{
+	u8 buf[15];
+
+	memcpy_fromio(buf, p, 15);
+	if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
+		/* use smbios_ even though it's really dmi_ */
+		smbios_num = (buf[13] << 8) | buf[12];
+		smbios_len = (buf[7] << 8) | buf[6];
+		smbios_base = (buf[11] << 24) | (buf[10] << 16) |
+			(buf[9] << 8) | buf[8];
+
+		printk(KERN_INFO "DMI %d.%d present.\n", buf[14] >> 4,
+		       buf[14] & 0xF);
+
+		smbios_map = smbios_ioremap(smbios_base, smbios_len);
+		if (!smbios_map)
+			return -ENOMEM;
+		smbios_boot_display();
+	}
+	return 1;
+}
+
+/* Check and decode the SMBIOS STEP function */
+static int __init smbios_decode_step(void)
+{
+	u8 chksum1, chksum2, *buf, fp;
+
+	if (!smbios_addr)
+		return -ENODEV;
+
+	buf = smbios_ioremap(smbios_addr, sizeof(struct smbios_step));
+	if (!buf)
+		return -ENODEV;
+
+	memcpy(&smbios_step, buf, sizeof(struct smbios_step));
+
+	/* checksum the entire STEP structure */
+	chksum1 = 0;
+	for (fp = 0; fp < smbios_step.length; fp++)
+		chksum1 += buf[fp];
+	if (chksum1) {
+		smbios_iounmap(buf, sizeof(struct smbios_step));
+		WARN(1, "SMBIOS: Invalid STEP table checksum = %u\n", chksum1);
+		return -EINVAL;
+	}
+
+	/* checksum the Intermediate structure */
+	chksum2 = 0;
+	for (fp = 0x10; fp < smbios_step.length; fp++)
+		chksum2 += buf[fp];
+	if (chksum2) {
+		smbios_iounmap(buf, sizeof(struct smbios_step));
+		WARN(1, "SMBIOS: Invalid Intermediate checksum = %u\n",
+		     chksum2);
+		return -EINVAL;
+	}
+
+	smbios_iounmap(buf, sizeof(struct smbios_step));
+
+	printk(KERN_INFO "SMBIOS: version %u.%u @ 0x%lX | %d structures\n",
+	       smbios_step.major, smbios_step.minor, smbios_addr,
+	       smbios_step.num_structs);
+
+	smbios_num = smbios_step.num_structs;
+	smbios_len = smbios_step.struct_len;
+	smbios_base = smbios_step.struct_addr;
+
+	/*
+	 * Need to map smbios_map for the smbios_walk() and other potential
+	 * early callers.  This is unmapped, and ioremap'ed in the late call.
+	 */
+	smbios_map = smbios_ioremap(smbios_base, smbios_len);
+	if (!smbios_map) {
+		printk(KERN_INFO "SMBIOS tables are invalid.\n");
+		return -ENOMEM;
+	}
+	smbios_available = 1;
+
+	return 0;
+}
+
+/**
+ * smbios_init - Initialize the SMBIOS code and register a sysfw driver
+ *
+ * This function looks for the SMBIOS tables, maps them, and registers a
+ * System Firmware driver.
+ */
+int __init smbios_init(void)
+{
+	u8 *buf;
+	int fp = 0, rc;
+	int ret = 0;
+	int smbios_present = 0;
+
+	if (efi_enabled) {
+		if (efi.smbios == EFI_INVALID_TABLE_ADDR) {
+			ret = -ENODEV;
+			goto error;
+		}
+		smbios_addr = efi.smbios;
+	} else {
+		/*
+		 * Legacy SMBIOS is mapped @ 0xF0000, but may not
+		 * necessarily be _at_ 0xF0000
+		 */
+		smbios_addr = 0xF0000;
+	}
+	buf = smbios_ioremap(smbios_addr, SMBIOS_SIZE);
+	if (!buf) {
+		ret = -ENODEV;
+		goto error;
+	}
+
+	/* Find the SMBIOS entry point */
+	for (fp = 0; fp <= 0xFFF0; fp += 0x10) {
+		if (!memcmp(buf + fp, "_SM_", 4)) {
+			smbios_addr += fp;
+			smbios_present = 1;
+			break;
+		}
+	}
+	smbios_iounmap(buf, SMBIOS_SIZE);
+
+	if (smbios_present) {
+		rc = smbios_decode_step();
+		if (rc)
+			return -ENODEV;
+		rc = sysfw_driver_register(&smbios_sysfw_driver);
+		if (rc)
+			return rc;
+		smbios_decode_core();
+	} else {
+		/*
+		 * SMBIOS has been around since the 1990s.  The likelihood
+		 * of there being a DMI table not embedded in a SMBIOS table
+		 * is extremely unlikely, but the old code did look for this
+		 * and there is at least a possibility of a system out there
+		 * like this ... so check to see if an old legacy _DMI_ table
+		 * is available.
+		 *
+		 * XXX: Hopefully we can get rid of this one day.
+		 */
+		buf = smbios_ioremap(smbios_addr, SMBIOS_SIZE);
+		if (!buf) {
+			ret = -ENODEV;
+			goto error;
+		}
+
+		/* Find the DMI entry point */
+		for (fp = 0; fp <= 0xFFF0; fp += 0x10) {
+			if (dmi_present(buf + fp)) {
+				smbios_addr += fp;
+				break;
+			}
+		}
+		smbios_iounmap(buf, SMBIOS_SIZE);
+	}
+error:
+	if (!smbios_present)
+		printk(KERN_INFO "SMBIOS not present.");
+	return ret;
+
+}
+
+/**
+ * smbios_walk - executes a function for each SMBIOS structure
+ * @decode: Function to execute
+ * private_data: data passed into decode function
+ *
+ * This function walks the SMBIOS structures and executes decode on each
+ * structure.  This should have minimal usage in the kernel.  Unless you have
+ * need to access the raw SMBIOS data, you should use sysfw_lookup() or
+ * sysfw_callback().
+ */
+const union smbios_struct
+*smbios_walk(int (*decode)(const union smbios_struct *, void *),
+			   void *private_data)
+{
+	u8 *data = smbios_map;
+	int size = sizeof(struct smbios_header);
+	int i = 0;
+	int ret = SMBIOS_WALK_CONTINUE;
+	const union smbios_struct *ss = NULL;
+
+	/*
+	 * Stop when we see all the items the table claimed to have
+	 * OR we run off the end of the table (also happens)
+	 */
+	while ((i < smbios_num) &&
+	       (data - smbios_map + size) <= smbios_len) {
+		const struct smbios_header *dm;
+
+		/*
+		 *  We want to know the total length (formatted area and
+		 *  strings) before decoding to make sure we won't run off the
+		 *  table
+		 */
+		dm = (const struct smbios_header *)data;
+		data += dm->length;
+		while ((data - smbios_map < smbios_len - 1) &&
+		       (data[0] || data[1]))
+			data++;
+		if (data - smbios_map < smbios_len - 1) {
+			ret = decode((union smbios_struct *)dm, private_data);
+			if (ret == SMBIOS_WALK_STOP) {
+				ss = (union smbios_struct *)dm;
+				break;
+			}
+		}
+		data += 2;
+		i++;
+	}
+
+	return ss;
+}
+EXPORT_SYMBOL_GPL(smbios_walk);
+
+/*
+ * Helper Functions -- We really don't want a lot of these, but structs like
+ * the OEM Strings have a lot of elements and multiple drivers need to
+ * grep through them for string matches.  Might as well do all of this in
+ * one place.
+ */
+
+/*
+ * This seems really general and currently has only two specific needs
+ * in the kernel (type10 and type11).  But looking at other structs we'll need
+ * this for those as well.
+ */
+struct _smbios_strings {
+	int type;
+	int (*count_fn)(const union smbios_struct *ss);
+	const char *in;
+	const char *out;
+};
+
+/* returns SMBIOS_WALK_STOP & match->out != NULL on string match success */
+static int _match_string(const union smbios_struct *ss, void *_match)
+{
+	int i;
+	const char *str;
+	struct _smbios_strings *match = (struct _smbios_strings *)_match;
+
+	if (ss->header.type != match->type)
+		return SMBIOS_WALK_CONTINUE;
+
+	BUG_ON(!match->count_fn);
+
+	for (i = 1; i <= match->count_fn(ss); i++) {
+		str = smbios_get_string(ss, i);
+		if (!strncmp(match->in, str, strlen(match->in))) {
+			match->out = str;
+			return SMBIOS_WALK_STOP;
+		}
+	}
+
+	return SMBIOS_WALK_CONTINUE;
+}
+
+static int type10_count_fn(const union smbios_struct *ss)
+{
+	/*
+	 * From SMBIOS Specification: The user of this structure determines the
+	 * the number of devices as (Length - 4)/2.
+	 */
+	return (ss->header.length - 4) / 2;
+}
+
+const char *smbios_match_type10_string(const char *match, int check_disabled)
+{
+	struct _smbios_strings _match = {
+		.in = match,
+		.out = NULL,
+		.type = 10,
+		.count_fn = type10_count_fn,
+	};
+	const union smbios_struct *ss;
+
+	ss = smbios_walk(_match_string, (void *)&_match);
+	if ((ss && check_disabled) || (ss && (ss->type10.device_type & 0x80)))
+		return _match.out;
+	return NULL;
+}
+
+/** smbios_is_onboard_device - Determines if a device is on (soldered on)
+ * @match: string to match
+ * @check_disabled_devices: match against devices marked disabled in structure
+ *
+ * This function returns true if the string passed in matches a device
+ * that the SMBIOS recognizes as being on board (soldered on).  The function
+ * also can ignore SMBIOS's information about whether or not a device is
+ * disabled in order to workaround broken BIOSes.
+ *
+ * Note: This currently only looks at the type 10 structure.
+ */
+bool smbios_is_onboard_device(const char *match, int check_disabled_devices)
+{
+	const char *ret;
+
+	ret = smbios_match_type10_string(match, check_disabled_devices);
+	if (ret)
+		return true;
+	return false;
+}
+EXPORT_SYMBOL_GPL(smbios_is_onboard_device);
+
+static int type11_count_fn(const union smbios_struct *ss)
+{
+	return ss->type11.count;
+}
+
+/**
+ * smbios_match_oem_string - match a string with the OEM strings provided by
+ * @match: string to match
+ *
+ * This function returns the matching SMBIOS string if the string passed in
+ * matches the OEM strings provided by the SMBIOS.
+ */
+const char *smbios_match_oem_string(const char *match)
+{
+	struct _smbios_strings _match = {
+		.in = match,
+		.out = NULL,
+		.type = 11,
+		.count_fn = type11_count_fn,
+	};
+	const union smbios_struct *ss;
+
+	ss = smbios_walk(_match_string, (void *)&_match);
+	if (ss)
+		return _match.out;
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(smbios_match_oem_string);
diff --git a/include/linux/smbios.h b/include/linux/smbios.h
new file mode 100644
index 0000000..180a5d8
--- /dev/null
+++ b/include/linux/smbios.h
@@ -0,0 +1,243 @@
+/*
+ * linux/include/smbios.h
+ *
+ * "The SMBIOS Specification addresses how motherboard and system vendors
+ * present management information about their products in a standard format by
+ * extending the BIOS interface on x86 architecture systems. The information is
+ * intended to allow generic instrumentation to deliver this information to
+ * management applications that use DMI, CIM or direct access, eliminating the
+ * need for error prone operations like probing system hardware for presence
+ * detection."
+ *
+ * From http://www.dmtf.org/standards/smbios
+ *
+ * ... Grab the Spec.  It'll help.
+ */
+#ifndef __SMBIOS_H__
+#define __SMBIOS_H__
+
+#include <linux/mod_devicetable.h>
+
+/* struct smbios_step (SMBIOS STEP) is defined in drivers/firmware/smbios.c */
+/* enum sysfw_field (SYSFW_BIOS_VENDOR, etc.) is in mod_devicetable.h */
+
+/* max size of SMBIOS as specified in SMBIOS Specification */
+#define SMBIOS_SIZE 0x10000
+
+struct smbios_header {
+	u8 type;
+	u8 length;
+	u16 handle;
+} __attribute__((__packed__));
+
+/* UNION of SMBIOS types as listed in SMBIOS Specification. */
+union smbios_struct {
+	struct smbios_header header;
+	struct { /* BIOS Information */
+		struct smbios_header header;
+		u8 vendor;
+		u8 bios_version;
+		u16 bios_starting_address_segment;
+		u8 bios_release_date;
+		u8 bios_rom_size;
+		u32 bios_characteristics;
+		u16 bios_characteristics_extension_bytes;
+		u8 system_bios_major_release;
+		u8 system_bios_minor_release;
+		u8 embedded_controller_firmware_major_release;
+		u8 embedded_controller_firmware_minor_release;
+	} __attribute__((__packed__)) type0;
+	struct { /* System Information */
+		struct smbios_header header;
+		u8 manufacturer;
+		u8 product_name;
+		u8 version;
+		u8 serial_number;
+		u8 uuid[16];
+		u8 wake_up_type;
+		u8 sku_number;
+	} __attribute__((__packed__)) type1;
+	struct { /* Baseboard (or Module) Information */
+		struct smbios_header header;
+		u8 manufacturer;
+		u8 product;
+		u8 version;
+		u8 serial_number;
+		u8 asset_tag;
+		u8 feature_flags;
+	} __attribute__((__packed__)) type2;
+	struct { /* System Enclosure of Chassis */
+		struct smbios_header header;
+		u8 manufacturer;
+		u8 type;
+		u8 version;
+		u8 serial_number;
+		u8 asset_tag_number;
+		u8 boot_up_state;
+		u8 power_supply_state;
+		u8 thermal_state;
+		u8 security_status;
+		u8 oem_defined;
+		u8 height;
+		u8 number_of_power_cords;
+		u8 contained_element_count;
+		u8 contained_element_record;
+		/* contained elements = contained_element_count X */
+		/*			contained_element_record  */
+		u8 contained_elements;
+		/* u8 sku_number is allocated after that	  */
+	} __attribute__((__packed__)) type3;
+	struct { /* System Slots */
+		struct smbios_header header;
+		u8 slot_designation;
+		u8 slot_type;
+		u8 slot_data_bus_width;
+		u8 current_usage;
+		u8 slot_length;
+		u16 slot_id;
+		u8 slot_characteristics_1;
+		u8 slot_characteristics_2;
+		u16 segment_group_number;
+		u8 bus_number;
+		u8 device_function_number;
+	} __attribute__((__packed__)) type9;
+	struct { /* On Board Devices Information (Obsolete) */
+		struct smbios_header header;	/* count = (length - 4)/2 */
+		u8 device_type;			/* one for each device */
+		/* strings at end of struct, one per device */
+	} __attribute__((__packed__)) type10;
+	struct { /* OEM Strings */
+		struct smbios_header header;
+		u8 count;
+		u8 start;
+		/* variable number (equal to count) strings listed here */
+	} __attribute__((__packed__)) type11;
+	struct { /* IPMI Device Information - BMC Interface Type */
+		struct smbios_header header;
+		u8 interface_type;
+		u8 ipmi_specification_revision;
+		u8 i2c_slave_address;
+		u8 nv_storage_device_address;
+		u32 base_address;
+		union {
+			u8 base_address_modifier;
+			u8 interrupt_info;
+		};
+		u8 interrupt_number;
+	} __attribute__((__packed__)) type38;
+	struct { /* Onboard Devices Extended Information */
+		struct smbios_header header;
+		u8 reference_designation; /* "silkscreen label */
+		u8 device_type;
+		u8 device_type_instance;
+		u16 segment_group_number;
+		u8 bus_number;
+		u8 device_function_number;
+	} __attribute__((__packed__)) type41;
+};
+
+/* enum used for returns in smbios_walk decode() function */
+enum smbios_walk_value {
+	SMBIOS_WALK_CONTINUE = 0,	/* continue executing in smbios_walk */
+	SMBIOS_WALK_STOP,		/* stop executing and return */
+};
+
+#ifdef CONFIG_SMBIOS
+
+/* is there an SMBIOS on this system? */
+extern int smbios_available;
+
+/**
+ * smbios_get_string -- return a string from an SMBIOS structure
+ * @ss: pointer to structure being examined
+ * @s: number of string being examined
+ *
+ * This function returns a string within the structure ss.  Many SMBIOS
+ * structures have their strings at the end of the structure, and the location
+ * of each string is enumerated throughout the structure.
+ *
+ * For example,  The BIOS Information structure, type0, has the BIOS Version
+ * at offset 0x6, which contains a number enumerating the strings at the end
+ * of the structure.
+ *
+ * ie) s is an actual _number_, not a pointer.
+ */
+extern const char *smbios_get_string(const union smbios_struct *ss, u8 s);
+
+/**
+ * smbios_init - Initialize the SMBIOS code and register a sysfw driver
+ *
+ * This function looks for the SMBIOS tables, maps them, and registers a
+ * System Firmware driver.
+ */
+extern int smbios_init(void);
+
+/**
+ * smbios_walk - executes a function for each SMBIOS structure
+ * @decode: Function to execute
+ * private_data: data passed into decode function
+ *
+ * This function walks the SMBIOS structures and executes decode on each
+ * structure.  If you are looking for a specific unique type of structure,
+ * you should use smbios_find_struct().
+ *
+ * This should have minimal usage in the kernel.  The only reason this should
+ * be used is if you need access the raw SMBIOS data.  Otherwise you should
+ * use sysfw_lookup() or sysfw_callback().
+ */
+extern const union smbios_struct *
+smbios_walk(int (*decode)(const union smbios_struct *, void *),
+	    void *private_data);
+
+/* Helper Functions */
+
+/** smbios_is_onboard_device - Determines if a device is on (soldered on)
+ * @match: string to match
+ * @check_disabled_devices: match against devices marked disabled in structure
+ *
+ * This function returns true if the string passed in matches a device
+ * that the SMBIOS recognizes as being on board (soldered on).  The function
+ * also can ignore SMBIOS's information about whether or not a device is
+ * disabled in order to workaround broken BIOSes.
+ *
+ * XXX: Fix me.  This currently only looks at the type 10 structure.
+ */
+extern bool smbios_is_onboard_device(const char *match,
+				     int check_disabled_devices);
+
+/**
+ * smbios_match_oem_string - match a string with the OEM strings provided by
+ * @match: string to match
+ *
+ * This function returns the matching SMBIOS string if the string passed in
+ * matches the OEM strings provided by the SMBIOS.
+ */
+extern const char *smbios_match_oem_string(const char *match);
+
+#else
+#define smbios_available 0
+static inline const char *smbios_get_string(const union smbios_struct *ss, u8 s)
+{
+	return NULL;
+}
+static inline void smbios_init(void)
+{
+	return;
+}
+static inline const union smbios_struct
+*smbios_walk(int (*decode)(const union smbios_struct *, void *),
+	     void *private_data)
+{
+	return NULL;
+}
+static inline bool smbios_is_onboard_device(const char *match,
+					    int check_disabled_devices)
+{
+	return 0;
+}
+static inline const char *smbios_match_oem_string(const char *match)
+{
+	return NULL;
+}
+#endif
+#endif	/* __SMBIOS_H__ */
-- 
1.6.5.2

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[PATCH 04/34] drivers/acpi changes for SMBIOS and System Firmware interface

[Prarit Bhargava]

As part of the new SMBIOS and System Firmware code:

- Replace old dmi* structures and functions with new sysfw* and smbios*
structures and functions in individual drivers
- cleanup sysfw_id lookup tables
- cleanup of includes for dmi.h and mod_devicetable.h which were included in
some files that did not need them

Cc: linux-acpi@vger.kernel.org
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
---
 drivers/acpi/battery.c           |    5 +-
 drivers/acpi/blacklist.c         |  125 ++++++++++++++++++-------------------
 drivers/acpi/bus.c               |   16 +++---
 drivers/acpi/ec.c                |  101 ++++++++++++++++++++++---------
 drivers/acpi/osl.c               |   17 +++---
 drivers/acpi/pci_irq.c           |   33 +++++-----
 drivers/acpi/pci_slot.c          |   12 ++--
 drivers/acpi/processor_core.c    |   25 +++++---
 drivers/acpi/processor_driver.c  |    1 -
 drivers/acpi/processor_idle.c    |   51 +++++++++++-----
 drivers/acpi/scan.c              |    4 +-
 drivers/acpi/sleep.c             |   46 +++++++-------
 drivers/acpi/thermal.c           |   42 +++++++------
 drivers/acpi/video.c             |   28 ++++----
 drivers/acpi/video_detect.c      |    3 +-
 drivers/hwmon/acpi_power_meter.c |   15 +++--
 16 files changed, 295 insertions(+), 229 deletions(-)

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index fcc13ac..cf4faba 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -31,7 +31,7 @@
 #include <linux/types.h>
 #include <linux/jiffies.h>
 #include <linux/async.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
 
@@ -575,9 +575,8 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
 
 static void acpi_battery_quirks(struct acpi_battery *battery)
 {
-	if (dmi_name_in_vendors("Acer") && battery->power_unit) {
+	if (sysfw_vendor_is("Acer") && battery->power_unit)
 		set_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags);
-	}
 }
 
 /*
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index af308d0..4e44fbe 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -3,7 +3,7 @@
  *
  *  Check to see if the given machine has a known bad ACPI BIOS
  *  or if the BIOS is too old.
- *  Check given machine against acpi_osi_dmi_table[].
+ *  Check given machine against acpi_osi_smbios_table[].
  *
  *  Copyright (C) 2004 Len Brown <len.brown@intel.com>
  *  Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
@@ -32,7 +32,7 @@
 #include <linux/init.h>
 #include <linux/acpi.h>
 #include <acpi/acpi_bus.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 
 #include "internal.h"
 
@@ -53,7 +53,7 @@ struct acpi_blacklist_item {
 	u32 is_critical_error;
 };
 
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
+static struct sysfw_id acpi_osi_table[] __initdata;
 
 /*
  * POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -83,18 +83,18 @@ static int __init blacklist_by_year(void)
 	int year;
 
 	/* Doesn't exist? Likely an old system */
-	if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
-		printk(KERN_ERR PREFIX "no DMI BIOS year, "
+	if (!sysfw_lookup(SYSFW_BIOS_DATE)) {
+		printk(KERN_ERR PREFIX "no SMBIOS year, "
 			"acpi=force is required to enable ACPI\n" );
 		return 1;
 	}
 	/* 0? Likely a buggy new BIOS */
-	if (year == 0) {
-		printk(KERN_ERR PREFIX "DMI BIOS year==0, "
+	if (!sysfw_get_date()) {
+		printk(KERN_ERR PREFIX "SMBIOS date = 0, "
 			"assuming ACPI-capable machine\n" );
 		return 0;
 	}
-	if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
+	if (sysfw_get_date() < (CONFIG_ACPI_BLACKLIST_YEAR * 10000)) {
 		printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
 		       "acpi=force is required to enable ACPI\n",
 		       year, CONFIG_ACPI_BLACKLIST_YEAR);
@@ -169,38 +169,37 @@ int __init acpi_blacklisted(void)
 
 	blacklisted += blacklist_by_year();
 
-	dmi_check_system(acpi_osi_dmi_table);
+	sysfw_callback(acpi_osi_table);
 
 	return blacklisted;
 }
-#ifdef CONFIG_DMI
-static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
+static int __init enable_osi_linux(const struct sysfw_id *d)
 {
-	acpi_dmi_osi_linux(1, d);	/* enable */
+	acpi_smbios_osi_linux(1, d);	/* enable */
 	return 0;
 }
-static int __init dmi_disable_osi_vista(const struct dmi_system_id *d)
+static int __init disable_osi_vista(const struct sysfw_id *d)
 {
-	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
+	printk(KERN_NOTICE PREFIX "SMBIOS detected: %s\n", d->ident);
 	acpi_osi_setup("!Windows 2006");
 	acpi_osi_setup("!Windows 2006 SP1");
 	acpi_osi_setup("!Windows 2006 SP2");
 	return 0;
 }
-static int __init dmi_disable_osi_win7(const struct dmi_system_id *d)
+static int __init disable_osi_win7(const struct sysfw_id *d)
 {
-	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
+	printk(KERN_NOTICE PREFIX "SMBIOS detected: %s\n", d->ident);
 	acpi_osi_setup("!Windows 2009");
 	return 0;
 }
 
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+static struct sysfw_id acpi_osi_table[] __initdata = {
 	{
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "Fujitsu Siemens",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "FUJITSU SIEMENS"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
 		},
 	},
 	{
@@ -209,63 +208,63 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 * driver (e.g. nouveau) when user press brightness hotkey.
 	 * Currently, nouveau driver didn't do the job and it causes there
 	 * have a infinite while loop in DSDT when user press hotkey.
-	 * We add MSI GX723's dmi information to this table for workaround
+	 * We add MSI GX723's smbios information to this table for workaround
 	 * this issue.
 	 * Will remove MSI GX723 from the table after nouveau grows support.
 	 */
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "MSI GX723",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "GX723"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "Micro-Star International"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "GX723"),
 		},
 	},
 	{
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "Sony VGN-NS10J_S",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS10J_S"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "Sony Corporation"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "VGN-NS10J_S"),
 		},
 	},
 	{
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "Sony VGN-SR290J",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR290J"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "Sony Corporation"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "VGN-SR290J"),
 		},
 	},
 	{
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "VGN-NS50B_L",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "Sony Corporation"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "VGN-NS50B_L"),
 		},
 	},
 	{
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "Toshiba Satellite L355",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "Satellite L355"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "TOSHIBA"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "Satellite L355"),
 		},
 	},
 	{
-	.callback = dmi_disable_osi_win7,
+	.callback = disable_osi_win7,
 	.ident = "ASUS K50IJ",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "K50IJ"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "K50IJ"),
 		},
 	},
 	{
-	.callback = dmi_disable_osi_vista,
+	.callback = disable_osi_vista,
 	.ident = "Toshiba P305D",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "TOSHIBA"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Satellite P305D"),
 		},
 	},
 
@@ -279,56 +278,54 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	 * and thus we can not wildcard the vendor.
 	 *
 	 * _OSI(Linux) helps sound
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
+	 * SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad R61"),
+	 * SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad T61"),
 	 * T400, T500
 	 * _OSI(Linux) has Linux specific hooks
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
+	 * SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad X61"),
 	 * _OSI(Linux) is a NOP:
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
-	 * DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
+	 * SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "3000 N100"),
+	 * SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "LENOVO3000 V100"),
 	 */
 	{
-	.callback = dmi_enable_osi_linux,
+	.callback = enable_osi_linux,
 	.ident = "Lenovo ThinkPad R61",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "LENOVO"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad R61"),
 		},
 	},
 	{
-	.callback = dmi_enable_osi_linux,
+	.callback = enable_osi_linux,
 	.ident = "Lenovo ThinkPad T61",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "LENOVO"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad T61"),
 		},
 	},
 	{
-	.callback = dmi_enable_osi_linux,
+	.callback = enable_osi_linux,
 	.ident = "Lenovo ThinkPad X61",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X61"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "LENOVO"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad X61"),
 		},
 	},
 	{
-	.callback = dmi_enable_osi_linux,
+	.callback = enable_osi_linux,
 	.ident = "Lenovo ThinkPad T400",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T400"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "LENOVO"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad T400"),
 		},
 	},
 	{
-	.callback = dmi_enable_osi_linux,
+	.callback = enable_osi_linux,
 	.ident = "Lenovo ThinkPad T500",
 	.matches = {
-		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
-		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T500"),
+		     SYSFW_MATCH(SYSFW_SYS_VENDOR, "LENOVO"),
+		     SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "ThinkPad T500"),
 		},
 	},
 	{}
 };
-
-#endif /* CONFIG_DMI */
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index d1e06c1..09ad035 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -39,7 +39,7 @@
 #include <linux/pci.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/suspend.h>
 
 #include "internal.h"
@@ -55,7 +55,7 @@ EXPORT_SYMBOL(acpi_root_dir);
 
 
 #ifdef CONFIG_X86
-static int set_copy_dsdt(const struct dmi_system_id *id)
+static int set_copy_dsdt(const struct sysfw_id *id)
 {
 	printk(KERN_NOTICE "%s detected - "
 		"force copy of DSDT to local memory\n", id->ident);
@@ -63,7 +63,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static struct sysfw_id dsdt_id_table[] __initdata = {
 	/*
 	 * Invoke DSDT corruption work-around on all Toshiba Satellite.
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=14679
@@ -72,14 +72,14 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
 	 .callback = set_copy_dsdt,
 	 .ident = "TOSHIBA Satellite",
 	 .matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "TOSHIBA"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Satellite"),
 		},
 	},
 	{}
 };
 #else
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static struct sysfw_id dsdt_id_table[] __initdata = {
 	{}
 };
 #endif
@@ -856,10 +856,10 @@ void __init acpi_early_init(void)
 	acpi_gbl_permanent_mmap = 1;
 
 	/*
-	 * If the machine falls into the DMI check table,
+	 * If the machine falls into the SMBIOS check table,
 	 * DSDT will be copied to memory
 	 */
-	dmi_check_system(dsdt_dmi_table);
+	sysfw_callback(dsdt_id_table);
 
 	status = acpi_reallocate_root_table();
 	if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index b19a18d..f0febee 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -41,7 +41,7 @@
 #include <asm/io.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 
 #include "internal.h"
 
@@ -892,21 +892,21 @@ static const struct acpi_device_id ec_device_ids[] = {
 };
 
 /* Some BIOS do not survive early DSDT scan, skip it */
-static int ec_skip_dsdt_scan(const struct dmi_system_id *id)
+static int ec_skip_dsdt_scan(const struct sysfw_id *id)
 {
 	EC_FLAGS_SKIP_DSDT_SCAN = 1;
 	return 0;
 }
 
 /* ASUStek often supplies us with broken ECDT, validate it */
-static int ec_validate_ecdt(const struct dmi_system_id *id)
+static int ec_validate_ecdt(const struct sysfw_id *id)
 {
 	EC_FLAGS_VALIDATE_ECDT = 1;
 	return 0;
 }
 
 /* MSI EC needs special treatment, enable it */
-static int ec_flag_msi(const struct dmi_system_id *id)
+static int ec_flag_msi(const struct sysfw_id *id)
 {
 	printk(KERN_DEBUG PREFIX "Detected MSI hardware, enabling workarounds.\n");
 	EC_FLAGS_MSI = 1;
@@ -914,41 +914,84 @@ static int ec_flag_msi(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id __initdata ec_dmi_table[] = {
+static struct sysfw_id __initdata ec_smbios_table[] = {
 	{
-	ec_skip_dsdt_scan, "Compal JFL92", {
-	DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
-	DMI_MATCH(DMI_BOARD_NAME, "JFL92") }, NULL},
+		.callback = ec_skip_dsdt_scan,
+		.ident = "Compal JFL92",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BIOS_VENDOR, "COMPAL"),
+			SYSFW_MATCH(SYSFW_BOARD_NAME, "JFL92")
+		},
+	},
+	{
+		.callback = ec_flag_msi,
+		.ident = "MSI hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BIOS_VENDOR, "Micro-Star")
+		},
+	},
 	{
-	ec_flag_msi, "MSI hardware", {
-	DMI_MATCH(DMI_BIOS_VENDOR, "Micro-Star")}, NULL},
+		.callback = ec_flag_msi,
+		.ident = "MSI hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "Micro-Star")
+		},
+	},
 	{
-	ec_flag_msi, "MSI hardware", {
-	DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star")}, NULL},
+		.callback = ec_flag_msi,
+		.ident = "MSI hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_CHASSIS_VENDOR, "MICRO-Star")
+		},
+	},
 	{
-	ec_flag_msi, "MSI hardware", {
-	DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-Star")}, NULL},
+		.callback = ec_flag_msi,
+		.ident = "MSI hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_CHASSIS_VENDOR, "MICRO-STAR")
+		},
+	},
 	{
-	ec_flag_msi, "MSI hardware", {
-	DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-STAR")}, NULL},
+		.callback = ec_flag_msi,
+		.ident = "Quanta hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "Quanta"),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME, "TW8/SW8/DW8")
+		},
+	},
 	{
-	ec_flag_msi, "Quanta hardware", {
-	DMI_MATCH(DMI_SYS_VENDOR, "Quanta"),
-	DMI_MATCH(DMI_PRODUCT_NAME, "TW8/SW8/DW8"),}, NULL},
+		.callback = ec_flag_msi,
+		.ident = "Quanta hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "Quanta"),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME, "TW9/SW9")
+		},
+	},
 	{
-	ec_flag_msi, "Quanta hardware", {
-	DMI_MATCH(DMI_SYS_VENDOR, "Quanta"),
-	DMI_MATCH(DMI_PRODUCT_NAME, "TW9/SW9"),}, NULL},
+		.callback = ec_validate_ecdt,
+		.ident = "ASUS hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BIOS_VENDOR, "ASUS")
+		},
+	},
 	{
-	ec_validate_ecdt, "ASUS hardware", {
-	DMI_MATCH(DMI_BIOS_VENDOR, "ASUS") }, NULL},
+		.callback = ec_validate_ecdt,
+		.ident = "ASUS hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BOARD_VENDOR,
+				    "ASUSTeK Computer Inc.")
+		},
+	},
 	{
-	ec_validate_ecdt, "ASUS hardware", {
-	DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc.") }, NULL},
+		.callback = ec_validate_ecdt,
+		.ident = "ASUS hardware",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BIOS_VENDOR, "ASUS")
+		},
+	},
 	{},
 };
 
-
 int __init acpi_ec_ecdt_probe(void)
 {
 	acpi_status status;
@@ -961,7 +1004,7 @@ int __init acpi_ec_ecdt_probe(void)
 	/*
 	 * Generate a boot ec context
 	 */
-	dmi_check_system(ec_dmi_table);
+	sysfw_callback(ec_smbios_table);
 	status = acpi_get_table(ACPI_SIG_ECDT, 1,
 				(struct acpi_table_header **)&ecdt_ptr);
 	if (ACPI_SUCCESS(status)) {
@@ -1009,7 +1052,7 @@ int __init acpi_ec_ecdt_probe(void)
 		* Keep boot_ec struct as it will be needed soon.
 		*/
 		acpi_handle dummy;
-		if (!dmi_name_in_vendors("ASUS") ||
+		if (!sysfw_vendor_is("ASUS") ||
 		    ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI",
 							&dummy)))
 			return -ENODEV;
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 52ca964..bbf1c68 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -141,13 +141,13 @@ static void __init acpi_osi_setup_late(void);
  * BIOS writers should NOT query _OSI(Linux) on future systems.
  * Linux will complain on the console when it sees it, and return FALSE.
  * To get Linux to return TRUE for your system  will require
- * a kernel source update to add a DMI entry,
+ * a kernel source update to add a SMBIOS entry,
  * or boot with "acpi_osi=Linux"
  */
 
 static struct osi_linux {
 	unsigned int	enable:1;
-	unsigned int	dmi:1;
+	unsigned int	smbios:1;
 	unsigned int	cmdline:1;
 } osi_linux = {0, 0, 0};
 
@@ -159,7 +159,7 @@ static u32 acpi_osi_handler(acpi_string interface, u32 supported)
 			"BIOS _OSI(Linux) query %s%s\n",
 			osi_linux.enable ? "honored" : "ignored",
 			osi_linux.cmdline ? " via cmdline" :
-			osi_linux.dmi ? " via DMI" : "");
+			osi_linux.smbios ? " via SMBIOS" : "");
 	}
 
 	return supported;
@@ -1133,21 +1133,22 @@ static void __init set_osi_linux(unsigned int enable)
 
 static void __init acpi_cmdline_osi_linux(unsigned int enable)
 {
-	osi_linux.cmdline = 1;	/* cmdline set the default and override DMI */
-	osi_linux.dmi = 0;
+	/* cmdline set the default and override SMBIOS */
+	osi_linux.cmdline = 1;
+	osi_linux.smbios = 0;
 	set_osi_linux(enable);
 
 	return;
 }
 
-void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d)
+void __init acpi_smbios_osi_linux(int enable, const struct sysfw_id *d)
 {
-	printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
+	printk(KERN_NOTICE PREFIX "SMBIOS detected: %s\n", d->ident);
 
 	if (enable == -1)
 		return;
 
-	osi_linux.dmi = 1;	/* DMI knows that this box asks OSI(Linux) */
+	osi_linux.smbios = 1;	/* SMBIOS knows that this box asks OSI(Linux) */
 	set_osi_linux(enable);
 
 	return;
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index f907cfb..ffc7af3 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -27,7 +27,7 @@
  */
 
 
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
@@ -88,44 +88,45 @@ static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(struct pci_dev *dev,
 }
 
 /* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */
-static const struct dmi_system_id medion_md9580[] = {
+static const struct sysfw_id medion_md9580[] = {
 	{
 		.ident = "Medion MD9580-F laptop",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "MEDIONNB"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "A555"),
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "MEDIONNB"),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME, "A555"),
 		},
 	},
-	{ }
+	{}
 };
 
 /* http://bugzilla.kernel.org/show_bug.cgi?id=5044 */
-static const struct dmi_system_id dell_optiplex[] = {
+static const struct sysfw_id dell_optiplex[] = {
 	{
 		.ident = "Dell Optiplex GX1",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX1 600S+"),
+			SYSFW_MATCH(SYSFW_SYS_VENDOR,
+				    "Dell Computer Corporation"),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME, "OptiPlex GX1 600S+"),
 		},
 	},
-	{ }
+	{}
 };
 
 /* http://bugzilla.kernel.org/show_bug.cgi?id=10138 */
-static const struct dmi_system_id hp_t5710[] = {
+static const struct sysfw_id hp_t5710[] = {
 	{
 		.ident = "HP t5710",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "hp t5000 series"),
-			DMI_MATCH(DMI_BOARD_NAME, "098Ch"),
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "Hewlett-Packard"),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME, "hp t5000 series"),
+			SYSFW_MATCH(SYSFW_BOARD_NAME, "098Ch"),
 		},
 	},
-	{ }
+	{}
 };
 
 struct prt_quirk {
-	const struct dmi_system_id *system;
+	const struct sysfw_id *system;
 	unsigned int		segment;
 	unsigned int		bus;
 	unsigned int		device;
@@ -166,7 +167,7 @@ static void do_prt_fixups(struct acpi_prt_entry *entry,
 		if (!prt->source)
 			continue;
 
-		if (dmi_check_system(quirk->system) &&
+		if (sysfw_callback(quirk->system) &&
 		    entry->id.segment == quirk->segment &&
 		    entry->id.bus == quirk->bus &&
 		    entry->id.device == quirk->device &&
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index 07f7fea..1db7f02 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -32,7 +32,7 @@
 #include <linux/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 
 static int debug;
 static int check_sta_before_sun;
@@ -329,14 +329,14 @@ acpi_pci_slot_remove(acpi_handle handle)
 	mutex_unlock(&slot_list_lock);
 }
 
-static int do_sta_before_sun(const struct dmi_system_id *d)
+static int do_sta_before_sun(const struct sysfw_id *d)
 {
 	info("%s detected: will evaluate _STA before calling _SUN\n", d->ident);
 	check_sta_before_sun = 1;
 	return 0;
 }
 
-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
+static struct sysfw_id acpi_pci_slot_id_table[] __initdata = {
 	/*
 	 * Fujitsu Primequest machines will return 1023 to indicate an
 	 * error if the _SUN method is evaluated on SxFy objects that
@@ -347,8 +347,8 @@ static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
 	 .callback = do_sta_before_sun,
 	 .ident = "Fujitsu PRIMEQUEST",
 	 .matches = {
-		DMI_MATCH(DMI_BIOS_VENDOR, "FUJITSU LIMITED"),
-		DMI_MATCH(DMI_BIOS_VERSION, "PRIMEQUEST"),
+		SYSFW_MATCH(SYSFW_BIOS_VENDOR, "FUJITSU LIMITED"),
+		SYSFW_MATCH(SYSFW_BIOS_VERSION, "PRIMEQUEST"),
 		},
 	},
 	{}
@@ -357,7 +357,7 @@ static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
 static int __init
 acpi_pci_slot_init(void)
 {
-	dmi_check_system(acpi_pci_slot_dmi_table);
+	sysfw_callback(acpi_pci_slot_id_table);
 	acpi_pci_register_driver(&acpi_pci_slot_driver);
 	return 0;
 }
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 02d2a4c..ab3955a 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -7,7 +7,7 @@
  *	Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
  *	- Added _PDC for platforms with Intel CPUs
  */
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/slab.h>
 
 #include <acpi/acpi_drivers.h>
@@ -19,7 +19,7 @@
 #define _COMPONENT		ACPI_PROCESSOR_COMPONENT
 ACPI_MODULE_NAME("processor_core");
 
-static int __init set_no_mwait(const struct dmi_system_id *id)
+static int __init set_no_mwait(const struct sysfw_id *id)
 {
 	printk(KERN_NOTICE PREFIX "%s detected - "
 		"disabling mwait for CPU C-states\n", id->ident);
@@ -27,13 +27,18 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id __initdata processor_idle_dmi_table[] = {
+static struct sysfw_id __initdata processor_idle_id_table[] = {
 	{
-	set_no_mwait, "Extensa 5220", {
-	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
-	DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-	DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
-	DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
+		.callback = set_no_mwait,
+		.ident = "Extensa 5220",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BIOS_VENDOR,
+				    "Phoenix Technologies LTD"),
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "Acer"),
+			SYSFW_MATCH(SYSFW_PRODUCT_VERSION, "0100"),
+			SYSFW_MATCH(SYSFW_BOARD_NAME, "Columbia")
+		}
+	},
 	{},
 };
 
@@ -343,10 +348,10 @@ early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
 void __init acpi_early_processor_set_pdc(void)
 {
 	/*
-	 * Check whether the system is DMI table. If yes, OSPM
+	 * Check whether the system is SMBIOS table. If yes, OSPM
 	 * should not use mwait for CPU-states.
 	 */
-	dmi_check_system(processor_idle_dmi_table);
+	sysfw_callback(processor_idle_id_table);
 
 	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index a4e0f1b..a78045e 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -40,7 +40,6 @@
 #include <linux/pm.h>
 #include <linux/cpufreq.h>
 #include <linux/cpu.h>
-#include <linux/dmi.h>
 #include <linux/moduleparam.h>
 #include <linux/cpuidle.h>
 #include <linux/slab.h>
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 431ab11..7fe9632 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -34,7 +34,7 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/moduleparam.h>
 #include <linux/sched.h>	/* need_resched() */
 #include <linux/pm_qos_params.h>
@@ -92,7 +92,7 @@ static int disabled_by_idle_boot_param(void)
  *
  * To skip this limit, boot/load with a large max_cstate limit.
  */
-static int set_max_cstate(const struct dmi_system_id *id)
+static int set_max_cstate(const struct sysfw_id *id)
 {
 	if (max_cstate > ACPI_PROCESSOR_MAX_POWER)
 		return 0;
@@ -108,19 +108,38 @@ static int set_max_cstate(const struct dmi_system_id *id)
 
 /* Actually this shouldn't be __cpuinitdata, would be better to fix the
    callers to only run once -AK */
-static struct dmi_system_id __cpuinitdata processor_power_dmi_table[] = {
-	{ set_max_cstate, "Clevo 5600D", {
-	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
-	  DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
-	 (void *)2},
-	{ set_max_cstate, "Pavilion zv5000", {
-	  DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-	  DMI_MATCH(DMI_PRODUCT_NAME,"Pavilion zv5000 (DS502A#ABA)")},
-	 (void *)1},
-	{ set_max_cstate, "Asus L8400B", {
-	  DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
-	  DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
-	 (void *)1},
+static struct sysfw_id __cpuinitdata processor_power_id_table[] = {
+	{
+		.callback = set_max_cstate,
+		.ident = "Clevo 5600D",
+		.matches = {
+			SYSFW_MATCH(SYSFW_BIOS_VENDOR,
+				    "Phoenix Technologies LTD"),
+			SYSFW_MATCH(SYSFW_BIOS_VERSION,
+				    "SHE845M0.86C.0013.D.0302131307")
+		},
+		.driver_data = (void *)2
+	},
+	{
+		.callback = set_max_cstate,
+		.ident = "Pavilion zv5000",
+		.matches = {
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "Hewlett-Packard"),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME,
+				    "Pavilion zv5000 (DS502A#ABA)")
+		},
+		.driver_data = (void *)1
+	},
+	{
+		.callback = set_max_cstate,
+		.ident = "Asus L8400B",
+		.matches = {
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "ASUSTeK Computer Inc."),
+			SYSFW_MATCH(SYSFW_PRODUCT_NAME,
+				    "L8400B series Notebook PC")
+		},
+		.driver_data = (void *)1
+	},
 	{},
 };
 
@@ -1096,7 +1115,7 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
 		return 0;
 
 	if (!first_run) {
-		dmi_check_system(processor_power_dmi_table);
+		sysfw_callback(processor_power_id_table);
 		max_cstate = acpi_processor_cstate_check(max_cstate);
 		if (max_cstate < ACPI_C_STATES_MAX)
 			printk(KERN_NOTICE
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 449c556..ff94b79 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -9,7 +9,7 @@
 #include <linux/acpi.h>
 #include <linux/signal.h>
 #include <linux/kthread.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 
 #include <acpi/acpi_drivers.h>
 
@@ -1083,7 +1083,7 @@ static int acpi_ibm_smbus_match(struct acpi_device *device)
 	struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
 	int result;
 
-	if (!dmi_name_in_vendors("IBM"))
+	if (!sysfw_vendor_is("IBM"))
 		return -ENODEV;
 
 	/* Look for SMBS object */
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 6c94960..2fe5d12 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -12,7 +12,7 @@
 
 #include <linux/delay.h>
 #include <linux/irq.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/device.h>
 #include <linux/suspend.h>
 #include <linux/reboot.h>
@@ -342,90 +342,90 @@ static const struct platform_suspend_ops acpi_suspend_ops_old = {
 	.recover = acpi_pm_finish,
 };
 
-static int __init init_old_suspend_ordering(const struct dmi_system_id *d)
+static int __init init_old_suspend_ordering(const struct sysfw_id *d)
 {
 	old_suspend_ordering = true;
 	return 0;
 }
 
-static int __init init_nvs_nosave(const struct dmi_system_id *d)
+static int __init init_nvs_nosave(const struct sysfw_id *d)
 {
 	acpi_nvs_nosave();
 	return 0;
 }
 
-static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
+static struct sysfw_id __initdata acpisleep_table[] = {
 	{
 	.callback = init_old_suspend_ordering,
 	.ident = "Abit KN9 (nForce4 variant)",
 	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "http://www.abit.com.tw/"),
-		DMI_MATCH(DMI_BOARD_NAME, "KN9 Series(NF-CK804)"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "http://www.abit.com.tw/"),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "KN9 Series(NF-CK804)"),
 		},
 	},
 	{
 	.callback = init_old_suspend_ordering,
 	.ident = "HP xw4600 Workstation",
 	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP xw4600 Workstation"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "Hewlett-Packard"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "HP xw4600 Workstation"),
 		},
 	},
 	{
 	.callback = init_old_suspend_ordering,
 	.ident = "Asus Pundit P1-AH2 (M2N8L motherboard)",
 	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."),
-		DMI_MATCH(DMI_BOARD_NAME, "M2N8L"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "ASUSTek Computer INC."),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "M2N8L"),
 		},
 	},
 	{
 	.callback = init_old_suspend_ordering,
 	.ident = "Panasonic CF51-2L",
 	.matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR,
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR,
 				"Matsushita Electric Industrial Co.,Ltd."),
-		DMI_MATCH(DMI_BOARD_NAME, "CF51-2L"),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "CF51-2L"),
 		},
 	},
 	{
 	.callback = init_nvs_nosave,
 	.ident = "Sony Vaio VGN-SR11M",
 	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SR11M"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "Sony Corporation"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "VGN-SR11M"),
 		},
 	},
 	{
 	.callback = init_nvs_nosave,
 	.ident = "Everex StepNote Series",
 	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Everex Systems, Inc."),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Everex StepNote Series"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "Everex Systems, Inc."),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Everex StepNote Series"),
 		},
 	},
 	{
 	.callback = init_nvs_nosave,
 	.ident = "Sony Vaio VPCEB1Z1E",
 	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VPCEB1Z1E"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "Sony Corporation"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "VPCEB1Z1E"),
 		},
 	},
 	{
 	.callback = init_nvs_nosave,
 	.ident = "Sony Vaio VGN-NW130D",
 	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NW130D"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "Sony Corporation"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "VGN-NW130D"),
 		},
 	},
 	{
 	.callback = init_nvs_nosave,
 	.ident = "Averatec AV1020-ED2",
 	.matches = {
-		DMI_MATCH(DMI_SYS_VENDOR, "AVERATEC"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "1000 Series"),
+		SYSFW_MATCH(SYSFW_SYS_VENDOR, "AVERATEC"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "1000 Series"),
 		},
 	},
 	{},
@@ -737,7 +737,7 @@ int __init acpi_sleep_init(void)
 #ifdef CONFIG_SUSPEND
 	int i = 0;
 
-	dmi_check_system(acpisleep_dmi_table);
+	sysfw_callback(acpisleep_table);
 #endif
 
 	if (acpi_disabled)
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 2607e17..7005de5 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -33,7 +33,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/types.h>
@@ -1075,8 +1075,8 @@ static int acpi_thermal_resume(struct acpi_device *device)
 	return AE_OK;
 }
 
-static int thermal_act(const struct dmi_system_id *d) {
-
+static int thermal_act(const struct sysfw_id *d)
+{
 	if (act == 0) {
 		printk(KERN_NOTICE "ACPI: %s detected: "
 			"disabling all active thermal trip points\n", d->ident);
@@ -1084,15 +1084,16 @@ static int thermal_act(const struct dmi_system_id *d) {
 	}
 	return 0;
 }
-static int thermal_nocrt(const struct dmi_system_id *d) {
-
+static int thermal_nocrt(const struct sysfw_id *d)
+{
 	printk(KERN_NOTICE "ACPI: %s detected: "
-		"disabling all critical thermal trip point actions.\n", d->ident);
+	       "disabling all critical thermal trip point actions.\n",
+	       d->ident);
 	nocrt = 1;
 	return 0;
 }
-static int thermal_tzp(const struct dmi_system_id *d) {
-
+static int thermal_tzp(const struct sysfw_id *d)
+{
 	if (tzp == 0) {
 		printk(KERN_NOTICE "ACPI: %s detected: "
 			"enabling thermal zone polling\n", d->ident);
@@ -1100,8 +1101,8 @@ static int thermal_tzp(const struct dmi_system_id *d) {
 	}
 	return 0;
 }
-static int thermal_psv(const struct dmi_system_id *d) {
-
+static int thermal_psv(const struct sysfw_id *d)
+{
 	if (psv == 0) {
 		printk(KERN_NOTICE "ACPI: %s detected: "
 			"disabling all passive thermal trip points\n", d->ident);
@@ -1110,7 +1111,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
 	return 0;
 }
 
-static struct dmi_system_id thermal_dmi_table[] __initdata = {
+static struct sysfw_id thermal_id_table[] __initdata = {
 	/*
 	 * Award BIOS on this AOpen makes thermal control almost worthless.
 	 * http://bugzilla.kernel.org/show_bug.cgi?id=8842
@@ -1119,32 +1120,33 @@ static struct dmi_system_id thermal_dmi_table[] __initdata = {
 	 .callback = thermal_act,
 	 .ident = "AOpen i915GMm-HFS",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
-		DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "AOpen"),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "i915GMm-HFS"),
 		},
 	},
 	{
 	 .callback = thermal_psv,
 	 .ident = "AOpen i915GMm-HFS",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
-		DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "AOpen"),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "i915GMm-HFS"),
 		},
 	},
 	{
 	 .callback = thermal_tzp,
 	 .ident = "AOpen i915GMm-HFS",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"),
-		DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "AOpen"),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "i915GMm-HFS"),
 		},
 	},
 	{
 	 .callback = thermal_nocrt,
 	 .ident = "Gigabyte GA-7ZX",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd."),
-		DMI_MATCH(DMI_BOARD_NAME, "7ZX"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR,
+			    "Gigabyte Technology Co., Ltd."),
+		SYSFW_MATCH(SYSFW_BOARD_NAME, "7ZX"),
 		},
 	},
 	{}
@@ -1154,7 +1156,7 @@ static int __init acpi_thermal_init(void)
 {
 	int result = 0;
 
-	dmi_check_system(thermal_dmi_table);
+	sysfw_callback(thermal_id_table);
 
 	if (off) {
 		printk(KERN_NOTICE "ACPI: thermal control disabled\n");
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index db39e9e..b28912b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -38,7 +38,7 @@
 #include <linux/pci_ids.h>
 #include <linux/slab.h>
 #include <asm/uaccess.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include <linux/suspend.h>
@@ -384,13 +384,13 @@ acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
  */
 
 static int bqc_offset_aml_bug_workaround;
-static int __init video_set_bqc_offset(const struct dmi_system_id *d)
+static int __init video_set_bqc_offset(const struct sysfw_id *d)
 {
 	bqc_offset_aml_bug_workaround = 9;
 	return 0;
 }
 
-static struct dmi_system_id video_dmi_table[] __initdata = {
+static struct sysfw_id video_id_table[] __initdata = {
 	/*
 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
 	 */
@@ -398,40 +398,40 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 	 .callback = video_set_bqc_offset,
 	 .ident = "Acer Aspire 5720",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5720"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "Acer"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Aspire 5720"),
 		},
 	},
 	{
 	 .callback = video_set_bqc_offset,
 	 .ident = "Acer Aspire 5710Z",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5710Z"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "Acer"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Aspire 5710Z"),
 		},
 	},
 	{
 	 .callback = video_set_bqc_offset,
 	 .ident = "eMachines E510",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "EMACHINES"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "eMachines E510"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "EMACHINES"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "eMachines E510"),
 		},
 	},
 	{
 	 .callback = video_set_bqc_offset,
 	 .ident = "Acer Aspire 5315",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5315"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "Acer"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Aspire 5315"),
 		},
 	},
 	{
 	 .callback = video_set_bqc_offset,
 	 .ident = "Acer Aspire 7720",
 	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Acer"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"),
+		SYSFW_MATCH(SYSFW_BOARD_VENDOR, "Acer"),
+		SYSFW_MATCH(SYSFW_PRODUCT_NAME, "Aspire 7720"),
 		},
 	},
 	{}
@@ -1801,7 +1801,7 @@ EXPORT_SYMBOL(acpi_video_unregister);
 
 static int __init acpi_video_init(void)
 {
-	dmi_check_system(video_dmi_table);
+	sysfw_callback(video_id_table);
 
 	if (intel_opregion_present())
 		return 0;
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 5af3479..41f0d10 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -34,7 +34,6 @@
  */
 
 #include <linux/acpi.h>
-#include <linux/dmi.h>
 #include <linux/pci.h>
 
 #define PREFIX "ACPI: "
@@ -158,7 +157,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle)
 		/* Add blacklists here. Be careful to use the right *DMI* bits
 		 * to still be able to override logic via boot params, e.g.:
 		 *
-		 *   if (dmi_name_in_vendors("XY")) {
+		 *   if (smbios_vendor_is("XY")) {
 		 *	acpi_video_support |=
 		 *		ACPI_VIDEO_BACKLIGHT_DMI_VENDOR;
 		 *}
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 66f6729..47175c6 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -24,7 +24,7 @@
 #include <linux/hwmon-sysfs.h>
 #include <linux/jiffies.h>
 #include <linux/mutex.h>
-#include <linux/dmi.h>
+#include <linux/sysfw.h>
 #include <linux/slab.h>
 #include <linux/kdev_t.h>
 #include <linux/sched.h>
@@ -975,17 +975,18 @@ static struct acpi_driver acpi_power_meter_driver = {
 };
 
 /* Module init/exit routines */
-static int __init enable_cap_knobs(const struct dmi_system_id *d)
+static int __init enable_cap_knobs(const struct sysfw_id *d)
 {
 	cap_in_hardware = 1;
 	return 0;
 }
 
-static struct dmi_system_id __initdata pm_dmi_table[] = {
+static struct sysfw_id __initdata pm_id_table[] = {
 	{
-		enable_cap_knobs, "IBM Active Energy Manager",
-		{
-			DMI_MATCH(DMI_SYS_VENDOR, "IBM")
+		.callback = enable_cap_knobs,
+		.ident = "IBM Active Energy Manager",
+		.matches = {
+			SYSFW_MATCH(SYSFW_SYS_VENDOR, "IBM")
 		},
 	},
 	{}
@@ -998,7 +999,7 @@ static int __init acpi_power_meter_init(void)
 	if (acpi_disabled)
 		return -ENODEV;
 
-	dmi_check_system(pm_dmi_table);
+	sysfw_callback(pm_id_table);
 
 	result = acpi_bus_register_driver(&acpi_power_meter_driver);
 	if (result < 0)
-- 
1.6.5.2

[PATCH 31/34] include/linux/acpi.h changes for SMBIOS and System Firmware

[Prarit Bhargava]

As part of the new SMBIOS and System Firmware code:

- Replace old dmi* structures and functions with new sysfw* and smbios*
structures and functions in individual drivers

Cc: linux-acpi@vger.kernel.org
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
---
 include/linux/acpi.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 1deb2a7..29d7de8 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -217,7 +217,7 @@ static inline int acpi_video_display_switch_support(void)
 #endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
 
 extern int acpi_blacklisted(void);
-extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
+extern void acpi_smbios_osi_linux(int enable, const struct sysfw_id *d);
 extern void acpi_osi_setup(char *str);
 
 #ifdef CONFIG_ACPI_NUMA
-- 
1.6.5.2

[PATCH 34/34] Remove old DMI & SMBIOS code and make SMBIOS default on

[Prarit Bhargava]

This code has now been completely replaced by the new System Firmware
Interface (SYSFW) and SMBIOS code.  It is no longer needed in the kernel.

Cc: linux-ia64@vger.kernel.org
Cc: x86@kernel.org
Cc: linux-acpi@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: openipmi-developer@lists.sourceforge.net
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: lm-sensors@lm-sensors.org
Cc: linux-i2c@vger.kernel.org
Cc: linux-ide@vger.kernel.org
Cc: linux-input@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: rtc-linux@googlegroups.com
Cc: evel@driverdev.osuosl.org
Cc: linux-usb@vger.kernel.org
Cc: device-drivers-devel@blackfin.uclinux.org
Cc: linux-watchdog@vger.kernel.org
Cc: grant.likely@secretlab.ca
Cc: dz@debian.org
Cc: rpurdie@rpsys.net
Cc: eric.piel@tremplin-utc.net
Cc: abelay@mit.edu
Cc: johnpol@2ka.mipt.ru
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
---
 arch/ia64/include/asm/dmi.h     |   12 -
 arch/x86/Kconfig                |    9 -
 arch/x86/include/asm/dmi.h      |   19 -
 drivers/firmware/Kconfig        |   20 -
 drivers/firmware/Makefile       |    3 -
 drivers/firmware/dmi-id.c       |  245 -------------
 drivers/firmware/dmi-sysfs.c    |  696 ------------------------------------
 drivers/firmware/dmi_scan.c     |  751 ---------------------------------------
 include/linux/dmi.h             |  139 -------
 include/linux/mod_devicetable.h |   55 ---
 10 files changed, 0 insertions(+), 1949 deletions(-)
 delete mode 100644 arch/ia64/include/asm/dmi.h
 delete mode 100644 arch/x86/include/asm/dmi.h
 delete mode 100644 drivers/firmware/dmi-id.c
 delete mode 100644 drivers/firmware/dmi-sysfs.c
 delete mode 100644 drivers/firmware/dmi_scan.c
 delete mode 100644 include/linux/dmi.h

diff --git a/arch/ia64/include/asm/dmi.h b/arch/ia64/include/asm/dmi.h
deleted file mode 100644
index 1ed4c8f..0000000
--- a/arch/ia64/include/asm/dmi.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_DMI_H
-#define _ASM_DMI_H 1
-
-#include <linux/slab.h>
-#include <asm/io.h>
-
-/* Use normal IO mappings for DMI */
-#define dmi_ioremap ioremap
-#define dmi_iounmap(x,l) iounmap(x)
-#define dmi_alloc(l) kmalloc(l, GFP_ATOMIC)
-
-#endif
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e7cdde8..92ee12b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -626,15 +626,6 @@ config APB_TIMER
 
 # Mark as expert because too many people got it wrong.
 # The code disables itself when not needed.
-config DMI
-	default y
-	bool "Enable DMI scanning" if EXPERT
-	---help---
-	  Enabled scanning of DMI to identify machine quirks. Say Y
-	  here unless you have verified that your setup is not
-	  affected by entries in the DMI blacklist. Required by PNP
-	  BIOS code.
-
 config SMBIOS
 	depends on SYSTEM_FIRMWARE
 	bool "Enable SMBIOS scanning" if EXPERT
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
deleted file mode 100644
index fd8f9e2..0000000
--- a/arch/x86/include/asm/dmi.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef _ASM_X86_DMI_H
-#define _ASM_X86_DMI_H
-
-#include <linux/compiler.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/setup.h>
-
-static __always_inline __init void *dmi_alloc(unsigned len)
-{
-	return extend_brk(len, sizeof(int));
-}
-
-/* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap early_ioremap
-#define dmi_iounmap early_iounmap
-
-#endif /* _ASM_X86_DMI_H */
diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index 23066d8..a46c162 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -104,26 +104,6 @@ config DCDBAS
 	  Say Y or M here to enable the driver for use by Dell systems
 	  management software such as Dell OpenManage.
 
-config DMIID
-    bool "Export DMI identification via sysfs to userspace"
-    depends on DMI
-    default y
-	help
-	  Say Y here if you want to query SMBIOS/DMI system identification
-	  information from userspace through /sys/class/dmi/id/ or if you want
-	  DMI-based module auto-loading.
-
-config DMI_SYSFS
-	tristate "DMI table support in sysfs"
-	depends on SYSFS && DMI
-	default n
-	help
-	  Say Y or M here to enable the exporting of the raw DMI table
-	  data via sysfs.  This is useful for consuming the data without
-	  requiring any access to /dev/mem at all.  Tables are found
-	  under /sys/firmware/dmi when this option is enabled and
-	  loaded.
-
 config ISCSI_IBFT_FIND
 	bool "iSCSI Boot Firmware Table Attributes"
 	depends on X86
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 5c9d81f..f372289 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -1,14 +1,11 @@
 #
 # Makefile for the linux kernel.
 #
-obj-$(CONFIG_DMI)		+= dmi_scan.o
-obj-$(CONFIG_DMI_SYSFS)		+= dmi-sysfs.o
 obj-$(CONFIG_EDD)		+= edd.o
 obj-$(CONFIG_EFI_VARS)		+= efivars.o
 obj-$(CONFIG_EFI_PCDP)		+= pcdp.o
 obj-$(CONFIG_DELL_RBU)          += dell_rbu.o
 obj-$(CONFIG_DCDBAS)		+= dcdbas.o
-obj-$(CONFIG_DMIID)		+= dmi-id.o
 obj-$(CONFIG_ISCSI_IBFT_FIND)	+= iscsi_ibft_find.o
 obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o
 obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o
diff --git a/drivers/firmware/dmi-id.c b/drivers/firmware/dmi-id.c
deleted file mode 100644
index 94a58a0..0000000
--- a/drivers/firmware/dmi-id.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/*
- * Export SMBIOS/DMI info via sysfs to userspace
- *
- * Copyright 2007, Lennart Poettering
- *
- * Licensed under GPLv2
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-#include <linux/device.h>
-#include <linux/slab.h>
-
-struct dmi_device_attribute{
-	struct device_attribute dev_attr;
-	int field;
-};
-#define to_dmi_dev_attr(_dev_attr) \
-	container_of(_dev_attr, struct dmi_device_attribute, dev_attr)
-
-static ssize_t sys_dmi_field_show(struct device *dev,
-				  struct device_attribute *attr,
-				  char *page)
-{
-	int field = to_dmi_dev_attr(attr)->field;
-	ssize_t len;
-	len = scnprintf(page, PAGE_SIZE, "%s\n", dmi_get_system_info(field));
-	page[len-1] = '\n';
-	return len;
-}
-
-#define DMI_ATTR(_name, _mode, _show, _field)			\
-	{ .dev_attr = __ATTR(_name, _mode, _show, NULL),	\
-	  .field = _field }
-
-#define DEFINE_DMI_ATTR_WITH_SHOW(_name, _mode, _field)		\
-static struct dmi_device_attribute sys_dmi_##_name##_attr =	\
-	DMI_ATTR(_name, _mode, sys_dmi_field_show, _field);
-
-DEFINE_DMI_ATTR_WITH_SHOW(bios_vendor,		0444, DMI_BIOS_VENDOR);
-DEFINE_DMI_ATTR_WITH_SHOW(bios_version,		0444, DMI_BIOS_VERSION);
-DEFINE_DMI_ATTR_WITH_SHOW(bios_date,		0444, DMI_BIOS_DATE);
-DEFINE_DMI_ATTR_WITH_SHOW(sys_vendor,		0444, DMI_SYS_VENDOR);
-DEFINE_DMI_ATTR_WITH_SHOW(product_name,		0444, DMI_PRODUCT_NAME);
-DEFINE_DMI_ATTR_WITH_SHOW(product_version,	0444, DMI_PRODUCT_VERSION);
-DEFINE_DMI_ATTR_WITH_SHOW(product_serial,	0400, DMI_PRODUCT_SERIAL);
-DEFINE_DMI_ATTR_WITH_SHOW(product_uuid,		0400, DMI_PRODUCT_UUID);
-DEFINE_DMI_ATTR_WITH_SHOW(board_vendor,		0444, DMI_BOARD_VENDOR);
-DEFINE_DMI_ATTR_WITH_SHOW(board_name,		0444, DMI_BOARD_NAME);
-DEFINE_DMI_ATTR_WITH_SHOW(board_version,	0444, DMI_BOARD_VERSION);
-DEFINE_DMI_ATTR_WITH_SHOW(board_serial,		0400, DMI_BOARD_SERIAL);
-DEFINE_DMI_ATTR_WITH_SHOW(board_asset_tag,	0444, DMI_BOARD_ASSET_TAG);
-DEFINE_DMI_ATTR_WITH_SHOW(chassis_vendor,	0444, DMI_CHASSIS_VENDOR);
-DEFINE_DMI_ATTR_WITH_SHOW(chassis_type,		0444, DMI_CHASSIS_TYPE);
-DEFINE_DMI_ATTR_WITH_SHOW(chassis_version,	0444, DMI_CHASSIS_VERSION);
-DEFINE_DMI_ATTR_WITH_SHOW(chassis_serial,	0400, DMI_CHASSIS_SERIAL);
-DEFINE_DMI_ATTR_WITH_SHOW(chassis_asset_tag,	0444, DMI_CHASSIS_ASSET_TAG);
-
-static void ascii_filter(char *d, const char *s)
-{
-	/* Filter out characters we don't want to see in the modalias string */
-	for (; *s; s++)
-		if (*s > ' ' && *s < 127 && *s != ':')
-			*(d++) = *s;
-
-	*d = 0;
-}
-
-static ssize_t get_modalias(char *buffer, size_t buffer_size)
-{
-	static const struct mafield {
-		const char *prefix;
-		int field;
-	} fields[] = {
-		{ "bvn", DMI_BIOS_VENDOR },
-		{ "bvr", DMI_BIOS_VERSION },
-		{ "bd",  DMI_BIOS_DATE },
-		{ "svn", DMI_SYS_VENDOR },
-		{ "pn",  DMI_PRODUCT_NAME },
-		{ "pvr", DMI_PRODUCT_VERSION },
-		{ "rvn", DMI_BOARD_VENDOR },
-		{ "rn",  DMI_BOARD_NAME },
-		{ "rvr", DMI_BOARD_VERSION },
-		{ "cvn", DMI_CHASSIS_VENDOR },
-		{ "ct",  DMI_CHASSIS_TYPE },
-		{ "cvr", DMI_CHASSIS_VERSION },
-		{ NULL,  DMI_NONE }
-	};
-
-	ssize_t l, left;
-	char *p;
-	const struct mafield *f;
-
-	strcpy(buffer, "dmi");
-	p = buffer + 3; left = buffer_size - 4;
-
-	for (f = fields; f->prefix && left > 0; f++) {
-		const char *c;
-		char *t;
-
-		c = dmi_get_system_info(f->field);
-		if (!c)
-			continue;
-
-		t = kmalloc(strlen(c) + 1, GFP_KERNEL);
-		if (!t)
-			break;
-		ascii_filter(t, c);
-		l = scnprintf(p, left, ":%s%s", f->prefix, t);
-		kfree(t);
-
-		p += l;
-		left -= l;
-	}
-
-	p[0] = ':';
-	p[1] = 0;
-
-	return p - buffer + 1;
-}
-
-static ssize_t sys_dmi_modalias_show(struct device *dev,
-				     struct device_attribute *attr, char *page)
-{
-	ssize_t r;
-	r = get_modalias(page, PAGE_SIZE-1);
-	page[r] = '\n';
-	page[r+1] = 0;
-	return r+1;
-}
-
-static struct device_attribute sys_dmi_modalias_attr =
-	__ATTR(modalias, 0444, sys_dmi_modalias_show, NULL);
-
-static struct attribute *sys_dmi_attributes[DMI_STRING_MAX+2];
-
-static struct attribute_group sys_dmi_attribute_group = {
-	.attrs = sys_dmi_attributes,
-};
-
-static const struct attribute_group* sys_dmi_attribute_groups[] = {
-	&sys_dmi_attribute_group,
-	NULL
-};
-
-static int dmi_dev_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
-	ssize_t len;
-
-	if (add_uevent_var(env, "MODALIAS="))
-		return -ENOMEM;
-	len = get_modalias(&env->buf[env->buflen - 1],
-			   sizeof(env->buf) - env->buflen);
-	if (len >= (sizeof(env->buf) - env->buflen))
-		return -ENOMEM;
-	env->buflen += len;
-	return 0;
-}
-
-static struct class dmi_class = {
-	.name = "dmi",
-	.dev_release = (void(*)(struct device *)) kfree,
-	.dev_uevent = dmi_dev_uevent,
-};
-
-static struct device *dmi_dev;
-
-/* Initialization */
-
-#define ADD_DMI_ATTR(_name, _field) \
-	if (dmi_get_system_info(_field)) \
-		sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr;
-
-/* In a separate function to keep gcc 3.2 happy - do NOT merge this in
-   dmi_id_init! */
-static void __init dmi_id_init_attr_table(void)
-{
-	int i;
-
-	/* Not necessarily all DMI fields are available on all
-	 * systems, hence let's built an attribute table of just
-	 * what's available */
-	i = 0;
-	ADD_DMI_ATTR(bios_vendor,       DMI_BIOS_VENDOR);
-	ADD_DMI_ATTR(bios_version,      DMI_BIOS_VERSION);
-	ADD_DMI_ATTR(bios_date,         DMI_BIOS_DATE);
-	ADD_DMI_ATTR(sys_vendor,        DMI_SYS_VENDOR);
-	ADD_DMI_ATTR(product_name,      DMI_PRODUCT_NAME);
-	ADD_DMI_ATTR(product_version,   DMI_PRODUCT_VERSION);
-	ADD_DMI_ATTR(product_serial,    DMI_PRODUCT_SERIAL);
-	ADD_DMI_ATTR(product_uuid,      DMI_PRODUCT_UUID);
-	ADD_DMI_ATTR(board_vendor,      DMI_BOARD_VENDOR);
-	ADD_DMI_ATTR(board_name,        DMI_BOARD_NAME);
-	ADD_DMI_ATTR(board_version,     DMI_BOARD_VERSION);
-	ADD_DMI_ATTR(board_serial,      DMI_BOARD_SERIAL);
-	ADD_DMI_ATTR(board_asset_tag,   DMI_BOARD_ASSET_TAG);
-	ADD_DMI_ATTR(chassis_vendor,    DMI_CHASSIS_VENDOR);
-	ADD_DMI_ATTR(chassis_type,      DMI_CHASSIS_TYPE);
-	ADD_DMI_ATTR(chassis_version,   DMI_CHASSIS_VERSION);
-	ADD_DMI_ATTR(chassis_serial,    DMI_CHASSIS_SERIAL);
-	ADD_DMI_ATTR(chassis_asset_tag, DMI_CHASSIS_ASSET_TAG);
-	sys_dmi_attributes[i++] = &sys_dmi_modalias_attr.attr;
-}
-
-static int __init dmi_id_init(void)
-{
-	int ret;
-
-	if (!dmi_available)
-		return -ENODEV;
-
-	dmi_id_init_attr_table();
-
-	ret = class_register(&dmi_class);
-	if (ret)
-		return ret;
-
-	dmi_dev = kzalloc(sizeof(*dmi_dev), GFP_KERNEL);
-	if (!dmi_dev) {
-		ret = -ENOMEM;
-		goto fail_class_unregister;
-	}
-
-	dmi_dev->class = &dmi_class;
-	dev_set_name(dmi_dev, "id");
-	dmi_dev->groups = sys_dmi_attribute_groups;
-
-	ret = device_register(dmi_dev);
-	if (ret)
-		goto fail_free_dmi_dev;
-
-	return 0;
-
-fail_free_dmi_dev:
-	kfree(dmi_dev);
-fail_class_unregister:
-
-	class_unregister(&dmi_class);
-
-	return ret;
-}
-
-arch_initcall(dmi_id_init);
diff --git a/drivers/firmware/dmi-sysfs.c b/drivers/firmware/dmi-sysfs.c
deleted file mode 100644
index eb26d62..0000000
--- a/drivers/firmware/dmi-sysfs.c
+++ /dev/null
@@ -1,696 +0,0 @@
-/*
- * dmi-sysfs.c
- *
- * This module exports the DMI tables read-only to userspace through the
- * sysfs file system.
- *
- * Data is currently found below
- *    /sys/firmware/dmi/...
- *
- * DMI attributes are presented in attribute files with names
- * formatted using %d-%d, so that the first integer indicates the
- * structure type (0-255), and the second field is the instance of that
- * entry.
- *
- * Copyright 2011 Google, Inc.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kobject.h>
-#include <linux/dmi.h>
-#include <linux/capability.h>
-#include <linux/slab.h>
-#include <linux/list.h>
-#include <linux/io.h>
-
-#define MAX_ENTRY_TYPE 255 /* Most of these aren't used, but we consider
-			      the top entry type is only 8 bits */
-
-struct dmi_sysfs_entry {
-	struct dmi_header dh;
-	struct kobject kobj;
-	int instance;
-	int position;
-	struct list_head list;
-	struct kobject *child;
-};
-
-/*
- * Global list of dmi_sysfs_entry.  Even though this should only be
- * manipulated at setup and teardown, the lazy nature of the kobject
- * system means we get lazy removes.
- */
-static LIST_HEAD(entry_list);
-static DEFINE_SPINLOCK(entry_list_lock);
-
-/* dmi_sysfs_attribute - Top level attribute. used by all entries. */
-struct dmi_sysfs_attribute {
-	struct attribute attr;
-	ssize_t (*show)(struct dmi_sysfs_entry *entry, char *buf);
-};
-
-#define DMI_SYSFS_ATTR(_entry, _name) \
-struct dmi_sysfs_attribute dmi_sysfs_attr_##_entry##_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = 0400}, \
-	.show = dmi_sysfs_##_entry##_##_name, \
-}
-
-/*
- * dmi_sysfs_mapped_attribute - Attribute where we require the entry be
- * mapped in.  Use in conjunction with dmi_sysfs_specialize_attr_ops.
- */
-struct dmi_sysfs_mapped_attribute {
-	struct attribute attr;
-	ssize_t (*show)(struct dmi_sysfs_entry *entry,
-			const struct dmi_header *dh,
-			char *buf);
-};
-
-#define DMI_SYSFS_MAPPED_ATTR(_entry, _name) \
-struct dmi_sysfs_mapped_attribute dmi_sysfs_attr_##_entry##_##_name = { \
-	.attr = {.name = __stringify(_name), .mode = 0400}, \
-	.show = dmi_sysfs_##_entry##_##_name, \
-}
-
-/*************************************************
- * Generic DMI entry support.
- *************************************************/
-static void dmi_entry_free(struct kobject *kobj)
-{
-	kfree(kobj);
-}
-
-static struct dmi_sysfs_entry *to_entry(struct kobject *kobj)
-{
-	return container_of(kobj, struct dmi_sysfs_entry, kobj);
-}
-
-static struct dmi_sysfs_attribute *to_attr(struct attribute *attr)
-{
-	return container_of(attr, struct dmi_sysfs_attribute, attr);
-}
-
-static ssize_t dmi_sysfs_attr_show(struct kobject *kobj,
-				   struct attribute *_attr, char *buf)
-{
-	struct dmi_sysfs_entry *entry = to_entry(kobj);
-	struct dmi_sysfs_attribute *attr = to_attr(_attr);
-
-	/* DMI stuff is only ever admin visible */
-	if (!capable(CAP_SYS_ADMIN))
-		return -EACCES;
-
-	return attr->show(entry, buf);
-}
-
-static const struct sysfs_ops dmi_sysfs_attr_ops = {
-	.show = dmi_sysfs_attr_show,
-};
-
-typedef ssize_t (*dmi_callback)(struct dmi_sysfs_entry *,
-				const struct dmi_header *dh, void *);
-
-struct find_dmi_data {
-	struct dmi_sysfs_entry	*entry;
-	dmi_callback		callback;
-	void			*private;
-	int			instance_countdown;
-	ssize_t			ret;
-};
-
-static void find_dmi_entry_helper(const struct dmi_header *dh,
-				  void *_data)
-{
-	struct find_dmi_data *data = _data;
-	struct dmi_sysfs_entry *entry = data->entry;
-
-	/* Is this the entry we want? */
-	if (dh->type != entry->dh.type)
-		return;
-
-	if (data->instance_countdown != 0) {
-		/* try the next instance? */
-		data->instance_countdown--;
-		return;
-	}
-
-	/*
-	 * Don't ever revisit the instance.  Short circuit later
-	 * instances by letting the instance_countdown run negative
-	 */
-	data->instance_countdown--;
-
-	/* Found the entry */
-	data->ret = data->callback(entry, dh, data->private);
-}
-
-/* State for passing the read parameters through dmi_find_entry() */
-struct dmi_read_state {
-	char *buf;
-	loff_t pos;
-	size_t count;
-};
-
-static ssize_t find_dmi_entry(struct dmi_sysfs_entry *entry,
-			      dmi_callback callback, void *private)
-{
-	struct find_dmi_data data = {
-		.entry = entry,
-		.callback = callback,
-		.private = private,
-		.instance_countdown = entry->instance,
-		.ret = -EIO,  /* To signal the entry disappeared */
-	};
-	int ret;
-
-	ret = dmi_walk(find_dmi_entry_helper, &data);
-	/* This shouldn't happen, but just in case. */
-	if (ret)
-		return -EINVAL;
-	return data.ret;
-}
-
-/*
- * Calculate and return the byte length of the dmi entry identified by
- * dh.  This includes both the formatted portion as well as the
- * unformatted string space, including the two trailing nul characters.
- */
-static size_t dmi_entry_length(const struct dmi_header *dh)
-{
-	const char *p = (const char *)dh;
-
-	p += dh->length;
-
-	while (p[0] || p[1])
-		p++;
-
-	return 2 + p - (const char *)dh;
-}
-
-/*************************************************
- * Support bits for specialized DMI entry support
- *************************************************/
-struct dmi_entry_attr_show_data {
-	struct attribute *attr;
-	char *buf;
-};
-
-static ssize_t dmi_entry_attr_show_helper(struct dmi_sysfs_entry *entry,
-					  const struct dmi_header *dh,
-					  void *_data)
-{
-	struct dmi_entry_attr_show_data *data = _data;
-	struct dmi_sysfs_mapped_attribute *attr;
-
-	attr = container_of(data->attr,
-			    struct dmi_sysfs_mapped_attribute, attr);
-	return attr->show(entry, dh, data->buf);
-}
-
-static ssize_t dmi_entry_attr_show(struct kobject *kobj,
-				   struct attribute *attr,
-				   char *buf)
-{
-	struct dmi_entry_attr_show_data data = {
-		.attr = attr,
-		.buf  = buf,
-	};
-	/* Find the entry according to our parent and call the
-	 * normalized show method hanging off of the attribute */
-	return find_dmi_entry(to_entry(kobj->parent),
-			      dmi_entry_attr_show_helper, &data);
-}
-
-static const struct sysfs_ops dmi_sysfs_specialize_attr_ops = {
-	.show = dmi_entry_attr_show,
-};
-
-/*************************************************
- * Specialized DMI entry support.
- *************************************************/
-
-/*** Type 15 - System Event Table ***/
-
-#define DMI_SEL_ACCESS_METHOD_IO8	0x00
-#define DMI_SEL_ACCESS_METHOD_IO2x8	0x01
-#define DMI_SEL_ACCESS_METHOD_IO16	0x02
-#define DMI_SEL_ACCESS_METHOD_PHYS32	0x03
-#define DMI_SEL_ACCESS_METHOD_GPNV	0x04
-
-struct dmi_system_event_log {
-	struct dmi_header header;
-	u16	area_length;
-	u16	header_start_offset;
-	u16	data_start_offset;
-	u8	access_method;
-	u8	status;
-	u32	change_token;
-	union {
-		struct {
-			u16 index_addr;
-			u16 data_addr;
-		} io;
-		u32	phys_addr32;
-		u16	gpnv_handle;
-		u32	access_method_address;
-	};
-	u8	header_format;
-	u8	type_descriptors_supported_count;
-	u8	per_log_type_descriptor_length;
-	u8	supported_log_type_descriptos[0];
-} __packed;
-
-#define DMI_SYSFS_SEL_FIELD(_field) \
-static ssize_t dmi_sysfs_sel_##_field(struct dmi_sysfs_entry *entry, \
-				      const struct dmi_header *dh, \
-				      char *buf) \
-{ \
-	struct dmi_system_event_log sel; \
-	if (sizeof(sel) > dmi_entry_length(dh)) \
-		return -EIO; \
-	memcpy(&sel, dh, sizeof(sel)); \
-	return sprintf(buf, "%u\n", sel._field); \
-} \
-static DMI_SYSFS_MAPPED_ATTR(sel, _field)
-
-DMI_SYSFS_SEL_FIELD(area_length);
-DMI_SYSFS_SEL_FIELD(header_start_offset);
-DMI_SYSFS_SEL_FIELD(data_start_offset);
-DMI_SYSFS_SEL_FIELD(access_method);
-DMI_SYSFS_SEL_FIELD(status);
-DMI_SYSFS_SEL_FIELD(change_token);
-DMI_SYSFS_SEL_FIELD(access_method_address);
-DMI_SYSFS_SEL_FIELD(header_format);
-DMI_SYSFS_SEL_FIELD(type_descriptors_supported_count);
-DMI_SYSFS_SEL_FIELD(per_log_type_descriptor_length);
-
-static struct attribute *dmi_sysfs_sel_attrs[] = {
-	&dmi_sysfs_attr_sel_area_length.attr,
-	&dmi_sysfs_attr_sel_header_start_offset.attr,
-	&dmi_sysfs_attr_sel_data_start_offset.attr,
-	&dmi_sysfs_attr_sel_access_method.attr,
-	&dmi_sysfs_attr_sel_status.attr,
-	&dmi_sysfs_attr_sel_change_token.attr,
-	&dmi_sysfs_attr_sel_access_method_address.attr,
-	&dmi_sysfs_attr_sel_header_format.attr,
-	&dmi_sysfs_attr_sel_type_descriptors_supported_count.attr,
-	&dmi_sysfs_attr_sel_per_log_type_descriptor_length.attr,
-	NULL,
-};
-
-
-static struct kobj_type dmi_system_event_log_ktype = {
-	.release = dmi_entry_free,
-	.sysfs_ops = &dmi_sysfs_specialize_attr_ops,
-	.default_attrs = dmi_sysfs_sel_attrs,
-};
-
-typedef u8 (*sel_io_reader)(const struct dmi_system_event_log *sel,
-			    loff_t offset);
-
-static DEFINE_MUTEX(io_port_lock);
-
-static u8 read_sel_8bit_indexed_io(const struct dmi_system_event_log *sel,
-				   loff_t offset)
-{
-	u8 ret;
-
-	mutex_lock(&io_port_lock);
-	outb((u8)offset, sel->io.index_addr);
-	ret = inb(sel->io.data_addr);
-	mutex_unlock(&io_port_lock);
-	return ret;
-}
-
-static u8 read_sel_2x8bit_indexed_io(const struct dmi_system_event_log *sel,
-				     loff_t offset)
-{
-	u8 ret;
-
-	mutex_lock(&io_port_lock);
-	outb((u8)offset, sel->io.index_addr);
-	outb((u8)(offset >> 8), sel->io.index_addr + 1);
-	ret = inb(sel->io.data_addr);
-	mutex_unlock(&io_port_lock);
-	return ret;
-}
-
-static u8 read_sel_16bit_indexed_io(const struct dmi_system_event_log *sel,
-				    loff_t offset)
-{
-	u8 ret;
-
-	mutex_lock(&io_port_lock);
-	outw((u16)offset, sel->io.index_addr);
-	ret = inb(sel->io.data_addr);
-	mutex_unlock(&io_port_lock);
-	return ret;
-}
-
-static sel_io_reader sel_io_readers[] = {
-	[DMI_SEL_ACCESS_METHOD_IO8]	= read_sel_8bit_indexed_io,
-	[DMI_SEL_ACCESS_METHOD_IO2x8]	= read_sel_2x8bit_indexed_io,
-	[DMI_SEL_ACCESS_METHOD_IO16]	= read_sel_16bit_indexed_io,
-};
-
-static ssize_t dmi_sel_raw_read_io(struct dmi_sysfs_entry *entry,
-				   const struct dmi_system_event_log *sel,
-				   char *buf, loff_t pos, size_t count)
-{
-	ssize_t wrote = 0;
-
-	sel_io_reader io_reader = sel_io_readers[sel->access_method];
-
-	while (count && pos < sel->area_length) {
-		count--;
-		*(buf++) = io_reader(sel, pos++);
-		wrote++;
-	}
-
-	return wrote;
-}
-
-static ssize_t dmi_sel_raw_read_phys32(struct dmi_sysfs_entry *entry,
-				       const struct dmi_system_event_log *sel,
-				       char *buf, loff_t pos, size_t count)
-{
-	u8 __iomem *mapped;
-	ssize_t wrote = 0;
-
-	mapped = ioremap(sel->access_method_address, sel->area_length);
-	if (!mapped)
-		return -EIO;
-
-	while (count && pos < sel->area_length) {
-		count--;
-		*(buf++) = readb(mapped + pos++);
-		wrote++;
-	}
-
-	iounmap(mapped);
-	return wrote;
-}
-
-static ssize_t dmi_sel_raw_read_helper(struct dmi_sysfs_entry *entry,
-				       const struct dmi_header *dh,
-				       void *_state)
-{
-	struct dmi_read_state *state = _state;
-	struct dmi_system_event_log sel;
-
-	if (sizeof(sel) > dmi_entry_length(dh))
-		return -EIO;
-
-	memcpy(&sel, dh, sizeof(sel));
-
-	switch (sel.access_method) {
-	case DMI_SEL_ACCESS_METHOD_IO8:
-	case DMI_SEL_ACCESS_METHOD_IO2x8:
-	case DMI_SEL_ACCESS_METHOD_IO16:
-		return dmi_sel_raw_read_io(entry, &sel, state->buf,
-					   state->pos, state->count);
-	case DMI_SEL_ACCESS_METHOD_PHYS32:
-		return dmi_sel_raw_read_phys32(entry, &sel, state->buf,
-					       state->pos, state->count);
-	case DMI_SEL_ACCESS_METHOD_GPNV:
-		pr_info("dmi-sysfs: GPNV support missing.\n");
-		return -EIO;
-	default:
-		pr_info("dmi-sysfs: Unknown access method %02x\n",
-			sel.access_method);
-		return -EIO;
-	}
-}
-
-static ssize_t dmi_sel_raw_read(struct file *filp, struct kobject *kobj,
-				struct bin_attribute *bin_attr,
-				char *buf, loff_t pos, size_t count)
-{
-	struct dmi_sysfs_entry *entry = to_entry(kobj->parent);
-	struct dmi_read_state state = {
-		.buf = buf,
-		.pos = pos,
-		.count = count,
-	};
-
-	return find_dmi_entry(entry, dmi_sel_raw_read_helper, &state);
-}
-
-static struct bin_attribute dmi_sel_raw_attr = {
-	.attr = {.name = "raw_event_log", .mode = 0400},
-	.read = dmi_sel_raw_read,
-};
-
-static int dmi_system_event_log(struct dmi_sysfs_entry *entry)
-{
-	int ret;
-
-	entry->child = kzalloc(sizeof(*entry->child), GFP_KERNEL);
-	if (!entry->child)
-		return -ENOMEM;
-	ret = kobject_init_and_add(entry->child,
-				   &dmi_system_event_log_ktype,
-				   &entry->kobj,
-				   "system_event_log");
-	if (ret)
-		goto out_free;
-
-	ret = sysfs_create_bin_file(entry->child, &dmi_sel_raw_attr);
-	if (ret)
-		goto out_del;
-
-	return 0;
-
-out_del:
-	kobject_del(entry->child);
-out_free:
-	kfree(entry->child);
-	return ret;
-}
-
-/*************************************************
- * Generic DMI entry support.
- *************************************************/
-
-static ssize_t dmi_sysfs_entry_length(struct dmi_sysfs_entry *entry, char *buf)
-{
-	return sprintf(buf, "%d\n", entry->dh.length);
-}
-
-static ssize_t dmi_sysfs_entry_handle(struct dmi_sysfs_entry *entry, char *buf)
-{
-	return sprintf(buf, "%d\n", entry->dh.handle);
-}
-
-static ssize_t dmi_sysfs_entry_type(struct dmi_sysfs_entry *entry, char *buf)
-{
-	return sprintf(buf, "%d\n", entry->dh.type);
-}
-
-static ssize_t dmi_sysfs_entry_instance(struct dmi_sysfs_entry *entry,
-					char *buf)
-{
-	return sprintf(buf, "%d\n", entry->instance);
-}
-
-static ssize_t dmi_sysfs_entry_position(struct dmi_sysfs_entry *entry,
-					char *buf)
-{
-	return sprintf(buf, "%d\n", entry->position);
-}
-
-static DMI_SYSFS_ATTR(entry, length);
-static DMI_SYSFS_ATTR(entry, handle);
-static DMI_SYSFS_ATTR(entry, type);
-static DMI_SYSFS_ATTR(entry, instance);
-static DMI_SYSFS_ATTR(entry, position);
-
-static struct attribute *dmi_sysfs_entry_attrs[] = {
-	&dmi_sysfs_attr_entry_length.attr,
-	&dmi_sysfs_attr_entry_handle.attr,
-	&dmi_sysfs_attr_entry_type.attr,
-	&dmi_sysfs_attr_entry_instance.attr,
-	&dmi_sysfs_attr_entry_position.attr,
-	NULL,
-};
-
-static ssize_t dmi_entry_raw_read_helper(struct dmi_sysfs_entry *entry,
-					 const struct dmi_header *dh,
-					 void *_state)
-{
-	struct dmi_read_state *state = _state;
-	size_t entry_length;
-
-	entry_length = dmi_entry_length(dh);
-
-	return memory_read_from_buffer(state->buf, state->count,
-				       &state->pos, dh, entry_length);
-}
-
-static ssize_t dmi_entry_raw_read(struct file *filp,
-				  struct kobject *kobj,
-				  struct bin_attribute *bin_attr,
-				  char *buf, loff_t pos, size_t count)
-{
-	struct dmi_sysfs_entry *entry = to_entry(kobj);
-	struct dmi_read_state state = {
-		.buf = buf,
-		.pos = pos,
-		.count = count,
-	};
-
-	return find_dmi_entry(entry, dmi_entry_raw_read_helper, &state);
-}
-
-static const struct bin_attribute dmi_entry_raw_attr = {
-	.attr = {.name = "raw", .mode = 0400},
-	.read = dmi_entry_raw_read,
-};
-
-static void dmi_sysfs_entry_release(struct kobject *kobj)
-{
-	struct dmi_sysfs_entry *entry = to_entry(kobj);
-	sysfs_remove_bin_file(&entry->kobj, &dmi_entry_raw_attr);
-	spin_lock(&entry_list_lock);
-	list_del(&entry->list);
-	spin_unlock(&entry_list_lock);
-	kfree(entry);
-}
-
-static struct kobj_type dmi_sysfs_entry_ktype = {
-	.release = dmi_sysfs_entry_release,
-	.sysfs_ops = &dmi_sysfs_attr_ops,
-	.default_attrs = dmi_sysfs_entry_attrs,
-};
-
-static struct kobject *dmi_kobj;
-static struct kset *dmi_kset;
-
-/* Global count of all instances seen.  Only for setup */
-static int __initdata instance_counts[MAX_ENTRY_TYPE + 1];
-
-/* Global positional count of all entries seen.  Only for setup */
-static int __initdata position_count;
-
-static void __init dmi_sysfs_register_handle(const struct dmi_header *dh,
-					     void *_ret)
-{
-	struct dmi_sysfs_entry *entry;
-	int *ret = _ret;
-
-	/* If a previous entry saw an error, short circuit */
-	if (*ret)
-		return;
-
-	/* Allocate and register a new entry into the entries set */
-	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
-	if (!entry) {
-		*ret = -ENOMEM;
-		return;
-	}
-
-	/* Set the key */
-	memcpy(&entry->dh, dh, sizeof(*dh));
-	entry->instance = instance_counts[dh->type]++;
-	entry->position = position_count++;
-
-	entry->kobj.kset = dmi_kset;
-	*ret = kobject_init_and_add(&entry->kobj, &dmi_sysfs_entry_ktype, NULL,
-				    "%d-%d", dh->type, entry->instance);
-
-	if (*ret) {
-		kfree(entry);
-		return;
-	}
-
-	/* Thread on the global list for cleanup */
-	spin_lock(&entry_list_lock);
-	list_add_tail(&entry->list, &entry_list);
-	spin_unlock(&entry_list_lock);
-
-	/* Handle specializations by type */
-	switch (dh->type) {
-	case DMI_ENTRY_SYSTEM_EVENT_LOG:
-		*ret = dmi_system_event_log(entry);
-		break;
-	default:
-		/* No specialization */
-		break;
-	}
-	if (*ret)
-		goto out_err;
-
-	/* Create the raw binary file to access the entry */
-	*ret = sysfs_create_bin_file(&entry->kobj, &dmi_entry_raw_attr);
-	if (*ret)
-		goto out_err;
-
-	return;
-out_err:
-	kobject_put(entry->child);
-	kobject_put(&entry->kobj);
-	return;
-}
-
-static void cleanup_entry_list(void)
-{
-	struct dmi_sysfs_entry *entry, *next;
-
-	/* No locks, we are on our way out */
-	list_for_each_entry_safe(entry, next, &entry_list, list) {
-		kobject_put(entry->child);
-		kobject_put(&entry->kobj);
-	}
-}
-
-static int __init dmi_sysfs_init(void)
-{
-	int error = -ENOMEM;
-	int val;
-
-	/* Set up our directory */
-	dmi_kobj = kobject_create_and_add("dmi", firmware_kobj);
-	if (!dmi_kobj)
-		goto err;
-
-	dmi_kset = kset_create_and_add("entries", NULL, dmi_kobj);
-	if (!dmi_kset)
-		goto err;
-
-	val = 0;
-	error = dmi_walk(dmi_sysfs_register_handle, &val);
-	if (error)
-		goto err;
-	if (val) {
-		error = val;
-		goto err;
-	}
-
-	pr_debug("dmi-sysfs: loaded.\n");
-
-	return 0;
-err:
-	cleanup_entry_list();
-	kset_unregister(dmi_kset);
-	kobject_put(dmi_kobj);
-	return error;
-}
-
-/* clean up everything. */
-static void __exit dmi_sysfs_exit(void)
-{
-	pr_debug("dmi-sysfs: unloading.\n");
-	cleanup_entry_list();
-	kset_unregister(dmi_kset);
-	kobject_put(dmi_kobj);
-}
-
-module_init(dmi_sysfs_init);
-module_exit(dmi_sysfs_exit);
-
-MODULE_AUTHOR("Mike Waychison <mikew@google.com>");
-MODULE_DESCRIPTION("DMI sysfs support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
deleted file mode 100644
index bcb1126..0000000
--- a/drivers/firmware/dmi_scan.c
+++ /dev/null
@@ -1,751 +0,0 @@
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/dmi.h>
-#include <linux/efi.h>
-#include <linux/bootmem.h>
-#include <asm/dmi.h>
-
-/*
- * DMI stands for "Desktop Management Interface".  It is part
- * of and an antecedent to, SMBIOS, which stands for System
- * Management BIOS.  See further: http://www.dmtf.org/standards
- */
-static char dmi_empty_string[] = "        ";
-
-/*
- * Catch too early calls to dmi_check_system():
- */
-static int dmi_initialized;
-
-static const char * __init dmi_string_nosave(const struct dmi_header *dm, u8 s)
-{
-	const u8 *bp = ((u8 *) dm) + dm->length;
-
-	if (s) {
-		s--;
-		while (s > 0 && *bp) {
-			bp += strlen(bp) + 1;
-			s--;
-		}
-
-		if (*bp != 0) {
-			size_t len = strlen(bp)+1;
-			size_t cmp_len = len > 8 ? 8 : len;
-
-			if (!memcmp(bp, dmi_empty_string, cmp_len))
-				return dmi_empty_string;
-			return bp;
-		}
-	}
-
-	return "";
-}
-
-static char * __init dmi_string(const struct dmi_header *dm, u8 s)
-{
-	const char *bp = dmi_string_nosave(dm, s);
-	char *str;
-	size_t len;
-
-	if (bp == dmi_empty_string)
-		return dmi_empty_string;
-
-	len = strlen(bp) + 1;
-	str = dmi_alloc(len);
-	if (str != NULL)
-		strcpy(str, bp);
-	else
-		printk(KERN_ERR "dmi_string: cannot allocate %Zu bytes.\n", len);
-
-	return str;
-}
-
-/*
- *	We have to be cautious here. We have seen BIOSes with DMI pointers
- *	pointing to completely the wrong place for example
- */
-static void dmi_table(u8 *buf, int len, int num,
-		      void (*decode)(const struct dmi_header *, void *),
-		      void *private_data)
-{
-	u8 *data = buf;
-	int i = 0;
-
-	/*
-	 *	Stop when we see all the items the table claimed to have
-	 *	OR we run off the end of the table (also happens)
-	 */
-	while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) {
-		const struct dmi_header *dm = (const struct dmi_header *)data;
-
-		/*
-		 *  We want to know the total length (formatted area and
-		 *  strings) before decoding to make sure we won't run off the
-		 *  table in dmi_decode or dmi_string
-		 */
-		data += dm->length;
-		while ((data - buf < len - 1) && (data[0] || data[1]))
-			data++;
-		if (data - buf < len - 1)
-			decode(dm, private_data);
-		data += 2;
-		i++;
-	}
-}
-
-static u32 dmi_base;
-static u16 dmi_len;
-static u16 dmi_num;
-
-static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
-		void *))
-{
-	u8 *buf;
-
-	buf = dmi_ioremap(dmi_base, dmi_len);
-	if (buf == NULL)
-		return -1;
-
-	dmi_table(buf, dmi_len, dmi_num, decode, NULL);
-
-	dmi_iounmap(buf, dmi_len);
-	return 0;
-}
-
-static int __init dmi_checksum(const u8 *buf)
-{
-	u8 sum = 0;
-	int a;
-
-	for (a = 0; a < 15; a++)
-		sum += buf[a];
-
-	return sum == 0;
-}
-
-static char *dmi_ident[DMI_STRING_MAX];
-static LIST_HEAD(dmi_devices);
-int dmi_available;
-
-/*
- *	Save a DMI string
- */
-static void __init dmi_save_ident(const struct dmi_header *dm, int slot, int string)
-{
-	const char *d = (const char*) dm;
-	char *p;
-
-	if (dmi_ident[slot])
-		return;
-
-	p = dmi_string(dm, d[string]);
-	if (p == NULL)
-		return;
-
-	dmi_ident[slot] = p;
-}
-
-static void __init dmi_save_uuid(const struct dmi_header *dm, int slot, int index)
-{
-	const u8 *d = (u8*) dm + index;
-	char *s;
-	int is_ff = 1, is_00 = 1, i;
-
-	if (dmi_ident[slot])
-		return;
-
-	for (i = 0; i < 16 && (is_ff || is_00); i++) {
-		if(d[i] != 0x00) is_ff = 0;
-		if(d[i] != 0xFF) is_00 = 0;
-	}
-
-	if (is_ff || is_00)
-		return;
-
-	s = dmi_alloc(16*2+4+1);
-	if (!s)
-		return;
-
-	sprintf(s, "%pUB", d);
-
-        dmi_ident[slot] = s;
-}
-
-static void __init dmi_save_type(const struct dmi_header *dm, int slot, int index)
-{
-	const u8 *d = (u8*) dm + index;
-	char *s;
-
-	if (dmi_ident[slot])
-		return;
-
-	s = dmi_alloc(4);
-	if (!s)
-		return;
-
-	sprintf(s, "%u", *d & 0x7F);
-	dmi_ident[slot] = s;
-}
-
-static void __init dmi_save_one_device(int type, const char *name)
-{
-	struct dmi_device *dev;
-
-	/* No duplicate device */
-	if (dmi_find_device(type, name, NULL))
-		return;
-
-	dev = dmi_alloc(sizeof(*dev) + strlen(name) + 1);
-	if (!dev) {
-		printk(KERN_ERR "dmi_save_one_device: out of memory.\n");
-		return;
-	}
-
-	dev->type = type;
-	strcpy((char *)(dev + 1), name);
-	dev->name = (char *)(dev + 1);
-	dev->device_data = NULL;
-	list_add(&dev->list, &dmi_devices);
-}
-
-static void __init dmi_save_devices(const struct dmi_header *dm)
-{
-	int i, count = (dm->length - sizeof(struct dmi_header)) / 2;
-
-	for (i = 0; i < count; i++) {
-		const char *d = (char *)(dm + 1) + (i * 2);
-
-		/* Skip disabled device */
-		if ((*d & 0x80) == 0)
-			continue;
-
-		dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d + 1)));
-	}
-}
-
-static void __init dmi_save_oem_strings_devices(const struct dmi_header *dm)
-{
-	int i, count = *(u8 *)(dm + 1);
-	struct dmi_device *dev;
-
-	for (i = 1; i <= count; i++) {
-		char *devname = dmi_string(dm, i);
-
-		if (devname == dmi_empty_string)
-			continue;
-
-		dev = dmi_alloc(sizeof(*dev));
-		if (!dev) {
-			printk(KERN_ERR
-			   "dmi_save_oem_strings_devices: out of memory.\n");
-			break;
-		}
-
-		dev->type = DMI_DEV_TYPE_OEM_STRING;
-		dev->name = devname;
-		dev->device_data = NULL;
-
-		list_add(&dev->list, &dmi_devices);
-	}
-}
-
-static void __init dmi_save_ipmi_device(const struct dmi_header *dm)
-{
-	struct dmi_device *dev;
-	void * data;
-
-	data = dmi_alloc(dm->length);
-	if (data == NULL) {
-		printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n");
-		return;
-	}
-
-	memcpy(data, dm, dm->length);
-
-	dev = dmi_alloc(sizeof(*dev));
-	if (!dev) {
-		printk(KERN_ERR "dmi_save_ipmi_device: out of memory.\n");
-		return;
-	}
-
-	dev->type = DMI_DEV_TYPE_IPMI;
-	dev->name = "IPMI controller";
-	dev->device_data = data;
-
-	list_add_tail(&dev->list, &dmi_devices);
-}
-
-static void __init dmi_save_dev_onboard(int instance, int segment, int bus,
-					int devfn, const char *name)
-{
-	struct dmi_dev_onboard *onboard_dev;
-
-	onboard_dev = dmi_alloc(sizeof(*onboard_dev) + strlen(name) + 1);
-	if (!onboard_dev) {
-		printk(KERN_ERR "dmi_save_dev_onboard: out of memory.\n");
-		return;
-	}
-	onboard_dev->instance = instance;
-	onboard_dev->segment = segment;
-	onboard_dev->bus = bus;
-	onboard_dev->devfn = devfn;
-
-	strcpy((char *)&onboard_dev[1], name);
-	onboard_dev->dev.type = DMI_DEV_TYPE_DEV_ONBOARD;
-	onboard_dev->dev.name = (char *)&onboard_dev[1];
-	onboard_dev->dev.device_data = onboard_dev;
-
-	list_add(&onboard_dev->dev.list, &dmi_devices);
-}
-
-static void __init dmi_save_extended_devices(const struct dmi_header *dm)
-{
-	const u8 *d = (u8*) dm + 5;
-
-	/* Skip disabled device */
-	if ((*d & 0x80) == 0)
-		return;
-
-	dmi_save_dev_onboard(*(d+1), *(u16 *)(d+2), *(d+4), *(d+5),
-			     dmi_string_nosave(dm, *(d-1)));
-	dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d - 1)));
-}
-
-/*
- *	Process a DMI table entry. Right now all we care about are the BIOS
- *	and machine entries. For 2.5 we should pull the smbus controller info
- *	out of here.
- */
-static void __init dmi_decode(const struct dmi_header *dm, void *dummy)
-{
-	switch(dm->type) {
-	case 0:		/* BIOS Information */
-		dmi_save_ident(dm, DMI_BIOS_VENDOR, 4);
-		dmi_save_ident(dm, DMI_BIOS_VERSION, 5);
-		dmi_save_ident(dm, DMI_BIOS_DATE, 8);
-		break;
-	case 1:		/* System Information */
-		dmi_save_ident(dm, DMI_SYS_VENDOR, 4);
-		dmi_save_ident(dm, DMI_PRODUCT_NAME, 5);
-		dmi_save_ident(dm, DMI_PRODUCT_VERSION, 6);
-		dmi_save_ident(dm, DMI_PRODUCT_SERIAL, 7);
-		dmi_save_uuid(dm, DMI_PRODUCT_UUID, 8);
-		break;
-	case 2:		/* Base Board Information */
-		dmi_save_ident(dm, DMI_BOARD_VENDOR, 4);
-		dmi_save_ident(dm, DMI_BOARD_NAME, 5);
-		dmi_save_ident(dm, DMI_BOARD_VERSION, 6);
-		dmi_save_ident(dm, DMI_BOARD_SERIAL, 7);
-		dmi_save_ident(dm, DMI_BOARD_ASSET_TAG, 8);
-		break;
-	case 3:		/* Chassis Information */
-		dmi_save_ident(dm, DMI_CHASSIS_VENDOR, 4);
-		dmi_save_type(dm, DMI_CHASSIS_TYPE, 5);
-		dmi_save_ident(dm, DMI_CHASSIS_VERSION, 6);
-		dmi_save_ident(dm, DMI_CHASSIS_SERIAL, 7);
-		dmi_save_ident(dm, DMI_CHASSIS_ASSET_TAG, 8);
-		break;
-	case 10:	/* Onboard Devices Information */
-		dmi_save_devices(dm);
-		break;
-	case 11:	/* OEM Strings */
-		dmi_save_oem_strings_devices(dm);
-		break;
-	case 38:	/* IPMI Device Information */
-		dmi_save_ipmi_device(dm);
-		break;
-	case 41:	/* Onboard Devices Extended Information */
-		dmi_save_extended_devices(dm);
-	}
-}
-
-static void __init print_filtered(const char *info)
-{
-	const char *p;
-
-	if (!info)
-		return;
-
-	for (p = info; *p; p++)
-		if (isprint(*p))
-			printk(KERN_CONT "%c", *p);
-		else
-			printk(KERN_CONT "\\x%02x", *p & 0xff);
-}
-
-static void __init dmi_dump_ids(void)
-{
-	const char *board;	/* Board Name is optional */
-
-	printk(KERN_DEBUG "DMI: ");
-	print_filtered(dmi_get_system_info(DMI_SYS_VENDOR));
-	printk(KERN_CONT " ");
-	print_filtered(dmi_get_system_info(DMI_PRODUCT_NAME));
-	board = dmi_get_system_info(DMI_BOARD_NAME);
-	if (board) {
-		printk(KERN_CONT "/");
-		print_filtered(board);
-	}
-	printk(KERN_CONT ", BIOS ");
-	print_filtered(dmi_get_system_info(DMI_BIOS_VERSION));
-	printk(KERN_CONT " ");
-	print_filtered(dmi_get_system_info(DMI_BIOS_DATE));
-	printk(KERN_CONT "\n");
-}
-
-static int __init dmi_present(const char __iomem *p)
-{
-	u8 buf[15];
-
-	memcpy_fromio(buf, p, 15);
-	if ((memcmp(buf, "_DMI_", 5) == 0) && dmi_checksum(buf)) {
-		dmi_num = (buf[13] << 8) | buf[12];
-		dmi_len = (buf[7] << 8) | buf[6];
-		dmi_base = (buf[11] << 24) | (buf[10] << 16) |
-			(buf[9] << 8) | buf[8];
-
-		/*
-		 * DMI version 0.0 means that the real version is taken from
-		 * the SMBIOS version, which we don't know at this point.
-		 */
-		if (buf[14] != 0)
-			printk(KERN_INFO "DMI %d.%d present.\n",
-			       buf[14] >> 4, buf[14] & 0xF);
-		else
-			printk(KERN_INFO "DMI present.\n");
-		if (dmi_walk_early(dmi_decode) == 0) {
-			dmi_dump_ids();
-			return 0;
-		}
-	}
-	return 1;
-}
-
-void __init dmi_scan_machine(void)
-{
-	char __iomem *p, *q;
-	int rc;
-
-	if (efi_enabled) {
-		if (efi.smbios == EFI_INVALID_TABLE_ADDR)
-			goto error;
-
-		/* This is called as a core_initcall() because it isn't
-		 * needed during early boot.  This also means we can
-		 * iounmap the space when we're done with it.
-		 */
-		p = dmi_ioremap(efi.smbios, 32);
-		if (p == NULL)
-			goto error;
-
-		rc = dmi_present(p + 0x10); /* offset of _DMI_ string */
-		dmi_iounmap(p, 32);
-		if (!rc) {
-			dmi_available = 1;
-			goto out;
-		}
-	}
-	else {
-		/*
-		 * no iounmap() for that ioremap(); it would be a no-op, but
-		 * it's so early in setup that sucker gets confused into doing
-		 * what it shouldn't if we actually call it.
-		 */
-		p = dmi_ioremap(0xF0000, 0x10000);
-		if (p == NULL)
-			goto error;
-
-		for (q = p; q < p + 0x10000; q += 16) {
-			rc = dmi_present(q);
-			if (!rc) {
-				dmi_available = 1;
-				dmi_iounmap(p, 0x10000);
-				goto out;
-			}
-		}
-		dmi_iounmap(p, 0x10000);
-	}
- error:
-	printk(KERN_INFO "DMI not present or invalid.\n");
- out:
-	dmi_initialized = 1;
-}
-
-/**
- *	dmi_matches - check if dmi_system_id structure matches system DMI data
- *	@dmi: pointer to the dmi_system_id structure to check
- */
-static bool dmi_matches(const struct dmi_system_id *dmi)
-{
-	int i;
-
-	WARN(!dmi_initialized, KERN_ERR "dmi check: not initialized yet.\n");
-
-	for (i = 0; i < ARRAY_SIZE(dmi->matches); i++) {
-		int s = dmi->matches[i].slot;
-		if (s == DMI_NONE)
-			break;
-		if (dmi_ident[s]
-		    && strstr(dmi_ident[s], dmi->matches[i].substr))
-			continue;
-		/* No match */
-		return false;
-	}
-	return true;
-}
-
-/**
- *	dmi_is_end_of_table - check for end-of-table marker
- *	@dmi: pointer to the dmi_system_id structure to check
- */
-static bool dmi_is_end_of_table(const struct dmi_system_id *dmi)
-{
-	return dmi->matches[0].slot == DMI_NONE;
-}
-
-/**
- *	dmi_check_system - check system DMI data
- *	@list: array of dmi_system_id structures to match against
- *		All non-null elements of the list must match
- *		their slot's (field index's) data (i.e., each
- *		list string must be a substring of the specified
- *		DMI slot's string data) to be considered a
- *		successful match.
- *
- *	Walk the blacklist table running matching functions until someone
- *	returns non zero or we hit the end. Callback function is called for
- *	each successful match. Returns the number of matches.
- */
-int dmi_check_system(const struct dmi_system_id *list)
-{
-	int count = 0;
-	const struct dmi_system_id *d;
-
-	for (d = list; !dmi_is_end_of_table(d); d++)
-		if (dmi_matches(d)) {
-			count++;
-			if (d->callback && d->callback(d))
-				break;
-		}
-
-	return count;
-}
-EXPORT_SYMBOL(dmi_check_system);
-
-/**
- *	dmi_first_match - find dmi_system_id structure matching system DMI data
- *	@list: array of dmi_system_id structures to match against
- *		All non-null elements of the list must match
- *		their slot's (field index's) data (i.e., each
- *		list string must be a substring of the specified
- *		DMI slot's string data) to be considered a
- *		successful match.
- *
- *	Walk the blacklist table until the first match is found.  Return the
- *	pointer to the matching entry or NULL if there's no match.
- */
-const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list)
-{
-	const struct dmi_system_id *d;
-
-	for (d = list; !dmi_is_end_of_table(d); d++)
-		if (dmi_matches(d))
-			return d;
-
-	return NULL;
-}
-EXPORT_SYMBOL(dmi_first_match);
-
-/**
- *	dmi_get_system_info - return DMI data value
- *	@field: data index (see enum dmi_field)
- *
- *	Returns one DMI data value, can be used to perform
- *	complex DMI data checks.
- */
-const char *dmi_get_system_info(int field)
-{
-	return dmi_ident[field];
-}
-EXPORT_SYMBOL(dmi_get_system_info);
-
-/**
- * dmi_name_in_serial - Check if string is in the DMI product serial information
- * @str: string to check for
- */
-int dmi_name_in_serial(const char *str)
-{
-	int f = DMI_PRODUCT_SERIAL;
-	if (dmi_ident[f] && strstr(dmi_ident[f], str))
-		return 1;
-	return 0;
-}
-
-/**
- *	dmi_name_in_vendors - Check if string is anywhere in the DMI vendor information.
- *	@str: 	Case sensitive Name
- */
-int dmi_name_in_vendors(const char *str)
-{
-	static int fields[] = { DMI_BIOS_VENDOR, DMI_BIOS_VERSION, DMI_SYS_VENDOR,
-				DMI_PRODUCT_NAME, DMI_PRODUCT_VERSION, DMI_BOARD_VENDOR,
-				DMI_BOARD_NAME, DMI_BOARD_VERSION, DMI_NONE };
-	int i;
-	for (i = 0; fields[i] != DMI_NONE; i++) {
-		int f = fields[i];
-		if (dmi_ident[f] && strstr(dmi_ident[f], str))
-			return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(dmi_name_in_vendors);
-
-/**
- *	dmi_find_device - find onboard device by type/name
- *	@type: device type or %DMI_DEV_TYPE_ANY to match all device types
- *	@name: device name string or %NULL to match all
- *	@from: previous device found in search, or %NULL for new search.
- *
- *	Iterates through the list of known onboard devices. If a device is
- *	found with a matching @vendor and @device, a pointer to its device
- *	structure is returned.  Otherwise, %NULL is returned.
- *	A new search is initiated by passing %NULL as the @from argument.
- *	If @from is not %NULL, searches continue from next device.
- */
-const struct dmi_device * dmi_find_device(int type, const char *name,
-				    const struct dmi_device *from)
-{
-	const struct list_head *head = from ? &from->list : &dmi_devices;
-	struct list_head *d;
-
-	for(d = head->next; d != &dmi_devices; d = d->next) {
-		const struct dmi_device *dev =
-			list_entry(d, struct dmi_device, list);
-
-		if (((type == DMI_DEV_TYPE_ANY) || (dev->type == type)) &&
-		    ((name == NULL) || (strcmp(dev->name, name) == 0)))
-			return dev;
-	}
-
-	return NULL;
-}
-EXPORT_SYMBOL(dmi_find_device);
-
-/**
- *	dmi_get_date - parse a DMI date
- *	@field:	data index (see enum dmi_field)
- *	@yearp: optional out parameter for the year
- *	@monthp: optional out parameter for the month
- *	@dayp: optional out parameter for the day
- *
- *	The date field is assumed to be in the form resembling
- *	[mm[/dd]]/yy[yy] and the result is stored in the out
- *	parameters any or all of which can be omitted.
- *
- *	If the field doesn't exist, all out parameters are set to zero
- *	and false is returned.  Otherwise, true is returned with any
- *	invalid part of date set to zero.
- *
- *	On return, year, month and day are guaranteed to be in the
- *	range of [0,9999], [0,12] and [0,31] respectively.
- */
-bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp)
-{
-	int year = 0, month = 0, day = 0;
-	bool exists;
-	const char *s, *y;
-	char *e;
-
-	s = dmi_get_system_info(field);
-	exists = s;
-	if (!exists)
-		goto out;
-
-	/*
-	 * Determine year first.  We assume the date string resembles
-	 * mm/dd/yy[yy] but the original code extracted only the year
-	 * from the end.  Keep the behavior in the spirit of no
-	 * surprises.
-	 */
-	y = strrchr(s, '/');
-	if (!y)
-		goto out;
-
-	y++;
-	year = simple_strtoul(y, &e, 10);
-	if (y != e && year < 100) {	/* 2-digit year */
-		year += 1900;
-		if (year < 1996)	/* no dates < spec 1.0 */
-			year += 100;
-	}
-	if (year > 9999)		/* year should fit in %04d */
-		year = 0;
-
-	/* parse the mm and dd */
-	month = simple_strtoul(s, &e, 10);
-	if (s == e || *e != '/' || !month || month > 12) {
-		month = 0;
-		goto out;
-	}
-
-	s = e + 1;
-	day = simple_strtoul(s, &e, 10);
-	if (s == y || s == e || *e != '/' || day > 31)
-		day = 0;
-out:
-	if (yearp)
-		*yearp = year;
-	if (monthp)
-		*monthp = month;
-	if (dayp)
-		*dayp = day;
-	return exists;
-}
-EXPORT_SYMBOL(dmi_get_date);
-
-/**
- *	dmi_walk - Walk the DMI table and get called back for every record
- *	@decode: Callback function
- *	@private_data: Private data to be passed to the callback function
- *
- *	Returns -1 when the DMI table can't be reached, 0 on success.
- */
-int dmi_walk(void (*decode)(const struct dmi_header *, void *),
-	     void *private_data)
-{
-	u8 *buf;
-
-	if (!dmi_available)
-		return -1;
-
-	buf = ioremap(dmi_base, dmi_len);
-	if (buf == NULL)
-		return -1;
-
-	dmi_table(buf, dmi_len, dmi_num, decode, private_data);
-
-	iounmap(buf);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(dmi_walk);
-
-/**
- * dmi_match - compare a string to the dmi field (if exists)
- * @f: DMI field identifier
- * @str: string to compare the DMI field to
- *
- * Returns true if the requested field equals to the str (including NULL).
- */
-bool dmi_match(enum dmi_field f, const char *str)
-{
-	const char *info = dmi_get_system_info(f);
-
-	if (info == NULL || str == NULL)
-		return info == str;
-
-	return !strcmp(info, str);
-}
-EXPORT_SYMBOL_GPL(dmi_match);
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
deleted file mode 100644
index f156cca..0000000
--- a/include/linux/dmi.h
+++ /dev/null
@@ -1,139 +0,0 @@
-#ifndef __DMI_H__
-#define __DMI_H__
-
-#include <linux/list.h>
-#include <linux/mod_devicetable.h>
-
-/* enum dmi_field is in mod_devicetable.h */
-
-enum dmi_device_type {
-	DMI_DEV_TYPE_ANY = 0,
-	DMI_DEV_TYPE_OTHER,
-	DMI_DEV_TYPE_UNKNOWN,
-	DMI_DEV_TYPE_VIDEO,
-	DMI_DEV_TYPE_SCSI,
-	DMI_DEV_TYPE_ETHERNET,
-	DMI_DEV_TYPE_TOKENRING,
-	DMI_DEV_TYPE_SOUND,
-	DMI_DEV_TYPE_PATA,
-	DMI_DEV_TYPE_SATA,
-	DMI_DEV_TYPE_SAS,
-	DMI_DEV_TYPE_IPMI = -1,
-	DMI_DEV_TYPE_OEM_STRING = -2,
-	DMI_DEV_TYPE_DEV_ONBOARD = -3,
-};
-
-enum dmi_entry_type {
-	DMI_ENTRY_BIOS = 0,
-	DMI_ENTRY_SYSTEM,
-	DMI_ENTRY_BASEBOARD,
-	DMI_ENTRY_CHASSIS,
-	DMI_ENTRY_PROCESSOR,
-	DMI_ENTRY_MEM_CONTROLLER,
-	DMI_ENTRY_MEM_MODULE,
-	DMI_ENTRY_CACHE,
-	DMI_ENTRY_PORT_CONNECTOR,
-	DMI_ENTRY_SYSTEM_SLOT,
-	DMI_ENTRY_ONBOARD_DEVICE,
-	DMI_ENTRY_OEMSTRINGS,
-	DMI_ENTRY_SYSCONF,
-	DMI_ENTRY_BIOS_LANG,
-	DMI_ENTRY_GROUP_ASSOC,
-	DMI_ENTRY_SYSTEM_EVENT_LOG,
-	DMI_ENTRY_PHYS_MEM_ARRAY,
-	DMI_ENTRY_MEM_DEVICE,
-	DMI_ENTRY_32_MEM_ERROR,
-	DMI_ENTRY_MEM_ARRAY_MAPPED_ADDR,
-	DMI_ENTRY_MEM_DEV_MAPPED_ADDR,
-	DMI_ENTRY_BUILTIN_POINTING_DEV,
-	DMI_ENTRY_PORTABLE_BATTERY,
-	DMI_ENTRY_SYSTEM_RESET,
-	DMI_ENTRY_HW_SECURITY,
-	DMI_ENTRY_SYSTEM_POWER_CONTROLS,
-	DMI_ENTRY_VOLTAGE_PROBE,
-	DMI_ENTRY_COOLING_DEV,
-	DMI_ENTRY_TEMP_PROBE,
-	DMI_ENTRY_ELECTRICAL_CURRENT_PROBE,
-	DMI_ENTRY_OOB_REMOTE_ACCESS,
-	DMI_ENTRY_BIS_ENTRY,
-	DMI_ENTRY_SYSTEM_BOOT,
-	DMI_ENTRY_MGMT_DEV,
-	DMI_ENTRY_MGMT_DEV_COMPONENT,
-	DMI_ENTRY_MGMT_DEV_THRES,
-	DMI_ENTRY_MEM_CHANNEL,
-	DMI_ENTRY_IPMI_DEV,
-	DMI_ENTRY_SYS_POWER_SUPPLY,
-	DMI_ENTRY_ADDITIONAL,
-	DMI_ENTRY_ONBOARD_DEV_EXT,
-	DMI_ENTRY_MGMT_CONTROLLER_HOST,
-	DMI_ENTRY_INACTIVE = 126,
-	DMI_ENTRY_END_OF_TABLE = 127,
-};
-
-struct dmi_header {
-	u8 type;
-	u8 length;
-	u16 handle;
-};
-
-struct dmi_device {
-	struct list_head list;
-	int type;
-	const char *name;
-	void *device_data;	/* Type specific data */
-};
-
-#ifdef CONFIG_DMI
-
-struct dmi_dev_onboard {
-	struct dmi_device dev;
-	int instance;
-	int segment;
-	int bus;
-	int devfn;
-};
-
-extern int dmi_check_system(const struct dmi_system_id *list);
-const struct dmi_system_id *dmi_first_match(const struct dmi_system_id *list);
-extern const char * dmi_get_system_info(int field);
-extern const struct dmi_device * dmi_find_device(int type, const char *name,
-	const struct dmi_device *from);
-extern void dmi_scan_machine(void);
-extern bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp);
-extern int dmi_name_in_vendors(const char *str);
-extern int dmi_name_in_serial(const char *str);
-extern int dmi_available;
-extern int dmi_walk(void (*decode)(const struct dmi_header *, void *),
-	void *private_data);
-extern bool dmi_match(enum dmi_field f, const char *str);
-
-#else
-
-static inline int dmi_check_system(const struct dmi_system_id *list) { return 0; }
-static inline const char * dmi_get_system_info(int field) { return NULL; }
-static inline const struct dmi_device * dmi_find_device(int type, const char *name,
-	const struct dmi_device *from) { return NULL; }
-static inline void dmi_scan_machine(void) { return; }
-static inline bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp)
-{
-	if (yearp)
-		*yearp = 0;
-	if (monthp)
-		*monthp = 0;
-	if (dayp)
-		*dayp = 0;
-	return false;
-}
-static inline int dmi_name_in_vendors(const char *s) { return 0; }
-static inline int dmi_name_in_serial(const char *s) { return 0; }
-#define dmi_available 0
-static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *),
-	void *private_data) { return -1; }
-static inline bool dmi_match(enum dmi_field f, const char *str)
-	{ return false; }
-static inline const struct dmi_system_id *
-	dmi_first_match(const struct dmi_system_id *list) { return NULL; }
-
-#endif
-
-#endif	/* __DMI_H__ */
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 89153ad..5e8d1bc 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -427,61 +427,6 @@ struct spi_device_id {
 			__attribute__((aligned(sizeof(kernel_ulong_t))));
 };
 
-/* dmi */
-enum dmi_field {
-	DMI_NONE,
-	DMI_BIOS_VENDOR,
-	DMI_BIOS_VERSION,
-	DMI_BIOS_DATE,
-	DMI_SYS_VENDOR,
-	DMI_PRODUCT_NAME,
-	DMI_PRODUCT_VERSION,
-	DMI_PRODUCT_SERIAL,
-	DMI_PRODUCT_UUID,
-	DMI_BOARD_VENDOR,
-	DMI_BOARD_NAME,
-	DMI_BOARD_VERSION,
-	DMI_BOARD_SERIAL,
-	DMI_BOARD_ASSET_TAG,
-	DMI_CHASSIS_VENDOR,
-	DMI_CHASSIS_TYPE,
-	DMI_CHASSIS_VERSION,
-	DMI_CHASSIS_SERIAL,
-	DMI_CHASSIS_ASSET_TAG,
-	DMI_STRING_MAX,
-};
-
-struct dmi_strmatch {
-	unsigned char slot;
-	char substr[79];
-};
-
-#ifndef __KERNEL__
-struct dmi_system_id {
-	kernel_ulong_t callback;
-	kernel_ulong_t ident;
-	struct dmi_strmatch matches[4];
-	kernel_ulong_t driver_data
-			__attribute__((aligned(sizeof(kernel_ulong_t))));
-};
-#else
-struct dmi_system_id {
-	int (*callback)(const struct dmi_system_id *);
-	const char *ident;
-	struct dmi_strmatch matches[4];
-	void *driver_data;
-};
-/*
- * struct dmi_device_id appears during expansion of
- * "MODULE_DEVICE_TABLE(dmi, x)". Compiler doesn't look inside it
- * but this is enough for gcc 3.4.6 to error out:
- *	error: storage size of '__mod_dmi_device_table' isn't known
- */
-#define dmi_device_id dmi_system_id
-#endif
-
-#define DMI_MATCH(a, b)	{ a, b }
-
 /*
  * sysfw field - right now these are based on x86/ia64's SMBIOS fields.  But
  * other arches are certainly welcome to add additional fields.  The
-- 
1.6.5.2