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

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (27 commits)
  ACPI: Don't let acpi_pad needlessly mark TSC unstable
  drivers/acpi/sleep.h: Checkpatch cleanup
  ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion
  ACPI: delete unused c-state promotion/demotion data strucutures
  ACPI: video: fix acpi_backlight=video
  ACPI: EC: Use kmemdup
  drivers/acpi: use kasprintf
  ACPI, APEI, EINJ injection parameters support
  Add x64 support to debugfs
  ACPI, APEI, Use ERST for persistent storage of MCE
  ACPI, APEI, Error Record Serialization Table (ERST) support
  ACPI, APEI, Generic Hardware Error Source memory error support
  ACPI, APEI, UEFI Common Platform Error Record (CPER) header
  Unified UUID/GUID definition
  ACPI Hardware Error Device (PNP0C33) support
  ACPI, APEI, PCIE AER, use general HEST table parsing in AER firmware_first setup
  ACPI, APEI, Document for APEI
  ACPI, APEI, EINJ support
  ACPI, APEI, HEST table parsing
  ACPI, APEI, APEI supporting infrastructure
  ...

13 files changed, 468 insertions, 30 deletions

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 7bf83dd..baacd98 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -373,7 +373,7 @@ struct acpi_pci_root {
 	struct acpi_pci_id id;
 	struct pci_bus *bus;
 	u16 segment;
-	u8 bus_nr;
+	struct resource secondary;	/* downstream bus range */
 
 	u32 osc_support_set;	/* _OSC state of support bits */
 	u32 osc_control_set;	/* _OSC state of control bits */
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index 4f7b448..23d78b4 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -104,8 +104,7 @@ int acpi_pci_bind_root(struct acpi_device *device);
 
 /* Arch-defined function to add a bus to the system */
 
-struct pci_bus *pci_acpi_scan_root(struct acpi_device *device, int domain,
-				   int bus);
+struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root);
 void pci_acpi_crs_quirks(void);
 
 /* --------------------------------------------------------------------------
diff --git a/include/acpi/acpi_hest.h b/include/acpi/acpi_hest.h
deleted file mode 100644
index 63194d0..0000000
--- a/include/acpi/acpi_hest.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __ACPI_HEST_H
-#define __ACPI_HEST_H
-
-#include <linux/pci.h>
-
-#ifdef CONFIG_ACPI
-extern int acpi_hest_firmware_first_pci(struct pci_dev *pci);
-#else
-static inline int acpi_hest_firmware_first_pci(struct pci_dev *pci) { return 0; }
-#endif
-
-#endif
diff --git a/include/acpi/apei.h b/include/acpi/apei.h
new file mode 100644
index 0000000..b336502
--- /dev/null
+++ b/include/acpi/apei.h
@@ -0,0 +1,34 @@
+/*
+ * apei.h - ACPI Platform Error Interface
+ */
+
+#ifndef ACPI_APEI_H
+#define ACPI_APEI_H
+
+#include <linux/acpi.h>
+#include <linux/cper.h>
+#include <asm/ioctls.h>
+
+#define APEI_ERST_INVALID_RECORD_ID	0xffffffffffffffffULL
+
+#define APEI_ERST_CLEAR_RECORD		_IOW('E', 1, u64)
+#define APEI_ERST_GET_RECORD_COUNT	_IOR('E', 2, u32)
+
+#ifdef __KERNEL__
+
+extern int hest_disable;
+extern int erst_disable;
+
+typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
+int apei_hest_parse(apei_hest_func_t func, void *data);
+
+int erst_write(const struct cper_record_header *record);
+ssize_t erst_get_record_count(void);
+int erst_get_next_record_id(u64 *record_id);
+ssize_t erst_read(u64 record_id, struct cper_record_header *record,
+		  size_t buflen);
+ssize_t erst_read_next(struct cper_record_header *record, size_t buflen);
+int erst_clear(u64 record_id);
+
+#endif
+#endif
diff --git a/include/acpi/atomicio.h b/include/acpi/atomicio.h
new file mode 100644
index 0000000..8b9fb4b
--- /dev/null
+++ b/include/acpi/atomicio.h
@@ -0,0 +1,10 @@
+#ifndef ACPI_ATOMIC_IO_H
+#define ACPI_ATOMIC_IO_H
+
+int acpi_pre_map_gar(struct acpi_generic_address *reg);
+int acpi_post_unmap_gar(struct acpi_generic_address *reg);
+
+int acpi_atomic_read(u64 *val, struct acpi_generic_address *reg);
+int acpi_atomic_write(u64 val, struct acpi_generic_address *reg);
+
+#endif
diff --git a/include/acpi/hed.h b/include/acpi/hed.h
new file mode 100644
index 0000000..46e1249
--- /dev/null
+++ b/include/acpi/hed.h
@@ -0,0 +1,18 @@
+/*
+ * hed.h - ACPI Hardware Error Device
+ *
+ * Copyright (C) 2009, Intel Corp.
+ *	Author: Huang Ying <ying.huang@intel.com>
+ *
+ * This file is released under the GPLv2.
+ */
+
+#ifndef ACPI_HED_H
+#define ACPI_HED_H
+
+#include <linux/notifier.h>
+
+int register_acpi_hed_notifier(struct notifier_block *nb);
+void unregister_acpi_hed_notifier(struct notifier_block *nb);
+
+#endif
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 86825dd..da565a4 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -52,17 +52,6 @@ struct acpi_power_register {
 	u64 address;
 } __attribute__ ((packed));
 
-struct acpi_processor_cx_policy {
-	u32 count;
-	struct acpi_processor_cx *state;
-	struct {
-		u32 time;
-		u32 ticks;
-		u32 count;
-		u32 bm;
-	} threshold;
-};
-
 struct acpi_processor_cx {
 	u8 valid;
 	u8 type;
@@ -74,8 +63,6 @@ struct acpi_processor_cx {
 	u32 power;
 	u32 usage;
 	u64 time;
-	struct acpi_processor_cx_policy promotion;
-	struct acpi_processor_cx_policy demotion;
 	char desc[ACPI_CX_DESC_LEN];
 };
 
diff --git a/include/acpi/video.h b/include/acpi/video.h
index cf7be3d..551793c 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -1,12 +1,28 @@
 #ifndef __ACPI_VIDEO_H
 #define __ACPI_VIDEO_H
 
+#define ACPI_VIDEO_DISPLAY_CRT  1
+#define ACPI_VIDEO_DISPLAY_TV   2
+#define ACPI_VIDEO_DISPLAY_DVI  3
+#define ACPI_VIDEO_DISPLAY_LCD  4
+
+#define ACPI_VIDEO_DISPLAY_LEGACY_MONITOR 0x0100
+#define ACPI_VIDEO_DISPLAY_LEGACY_PANEL   0x0110
+#define ACPI_VIDEO_DISPLAY_LEGACY_TV      0x0200
+
 #if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE)
 extern int acpi_video_register(void);
 extern void acpi_video_unregister(void);
+extern int acpi_video_get_edid(struct acpi_device *device, int type,
+			       int device_id, void **edid);
 #else
 static inline int acpi_video_register(void) { return 0; }
 static inline void acpi_video_unregister(void) { return; }
+static inline int acpi_video_get_edid(struct acpi_device *device, int type,
+				      int device_id, void **edid)
+{
+	return -ENODEV;
+}
 #endif
 
 #endif
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 2c60f1f..224a38c 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -254,7 +254,6 @@ int acpi_resources_are_enforced(void);
 void __init acpi_no_s4_hw_signature(void);
 void __init acpi_old_suspend_ordering(void);
 void __init acpi_s4_no_nvs(void);
-void __init acpi_set_sci_en_on_resume(void);
 #endif /* CONFIG_PM_SLEEP */
 
 struct acpi_osc_context {
diff --git a/include/linux/cper.h b/include/linux/cper.h
new file mode 100644
index 0000000..4b38f90
--- /dev/null
+++ b/include/linux/cper.h
@@ -0,0 +1,314 @@
+/*
+ * UEFI Common Platform Error Record
+ *
+ * Copyright (C) 2010, Intel Corp.
+ *	Author: Huang Ying <ying.huang@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef LINUX_CPER_H
+#define LINUX_CPER_H
+
+#include <linux/uuid.h>
+
+/* CPER record signature and the size */
+#define CPER_SIG_RECORD				"CPER"
+#define CPER_SIG_SIZE				4
+/* Used in signature_end field in struct cper_record_header */
+#define CPER_SIG_END				0xffffffff
+
+/*
+ * CPER record header revision, used in revision field in struct
+ * cper_record_header
+ */
+#define CPER_RECORD_REV				0x0100
+
+/*
+ * Severity difinition for error_severity in struct cper_record_header
+ * and section_severity in struct cper_section_descriptor
+ */
+#define CPER_SER_RECOVERABLE			0x0
+#define CPER_SER_FATAL				0x1
+#define CPER_SER_CORRECTED			0x2
+#define CPER_SER_INFORMATIONAL			0x3
+
+/*
+ * Validation bits difinition for validation_bits in struct
+ * cper_record_header. If set, corresponding fields in struct
+ * cper_record_header contain valid information.
+ *
+ * corresponds platform_id
+ */
+#define CPER_VALID_PLATFORM_ID			0x0001
+/* corresponds timestamp */
+#define CPER_VALID_TIMESTAMP			0x0002
+/* corresponds partition_id */
+#define CPER_VALID_PARTITION_ID			0x0004
+
+/*
+ * Notification type used to generate error record, used in
+ * notification_type in struct cper_record_header
+ *
+ * Corrected Machine Check
+ */
+#define CPER_NOTIFY_CMC							\
+	UUID_LE(0x2DCE8BB1, 0xBDD7, 0x450e, 0xB9, 0xAD, 0x9C, 0xF4,	\
+		0xEB, 0xD4, 0xF8, 0x90)
+/* Corrected Platform Error */
+#define CPER_NOTIFY_CPE							\
+	UUID_LE(0x4E292F96, 0xD843, 0x4a55, 0xA8, 0xC2, 0xD4, 0x81,	\
+		0xF2, 0x7E, 0xBE, 0xEE)
+/* Machine Check Exception */
+#define CPER_NOTIFY_MCE							\
+	UUID_LE(0xE8F56FFE, 0x919C, 0x4cc5, 0xBA, 0x88, 0x65, 0xAB,	\
+		0xE1, 0x49, 0x13, 0xBB)
+/* PCI Express Error */
+#define CPER_NOTIFY_PCIE						\
+	UUID_LE(0xCF93C01F, 0x1A16, 0x4dfc, 0xB8, 0xBC, 0x9C, 0x4D,	\
+		0xAF, 0x67, 0xC1, 0x04)
+/* INIT Record (for IPF) */
+#define CPER_NOTIFY_INIT						\
+	UUID_LE(0xCC5263E8, 0x9308, 0x454a, 0x89, 0xD0, 0x34, 0x0B,	\
+		0xD3, 0x9B, 0xC9, 0x8E)
+/* Non-Maskable Interrupt */
+#define CPER_NOTIFY_NMI							\
+	UUID_LE(0x5BAD89FF, 0xB7E6, 0x42c9, 0x81, 0x4A, 0xCF, 0x24,	\
+		0x85, 0xD6, 0xE9, 0x8A)
+/* BOOT Error Record */
+#define CPER_NOTIFY_BOOT						\
+	UUID_LE(0x3D61A466, 0xAB40, 0x409a, 0xA6, 0x98, 0xF3, 0x62,	\
+		0xD4, 0x64, 0xB3, 0x8F)
+/* DMA Remapping Error */
+#define CPER_NOTIFY_DMAR						\
+	UUID_LE(0x667DD791, 0xC6B3, 0x4c27, 0x8A, 0x6B, 0x0F, 0x8E,	\
+		0x72, 0x2D, 0xEB, 0x41)
+
+/*
+ * Flags bits definitions for flags in struct cper_record_header
+ * If set, the error has been recovered
+ */
+#define CPER_HW_ERROR_FLAGS_RECOVERED		0x1
+/* If set, the error is for previous boot */
+#define CPER_HW_ERROR_FLAGS_PREVERR		0x2
+/* If set, the error is injected for testing */
+#define CPER_HW_ERROR_FLAGS_SIMULATED		0x4
+
+/*
+ * CPER section header revision, used in revision field in struct
+ * cper_section_descriptor
+ */
+#define CPER_SEC_REV				0x0100
+
+/*
+ * Validation bits difinition for validation_bits in struct
+ * cper_section_descriptor. If set, corresponding fields in struct
+ * cper_section_descriptor contain valid information.
+ *
+ * corresponds fru_id
+ */
+#define CPER_SEC_VALID_FRU_ID			0x1
+/* corresponds fru_text */
+#define CPER_SEC_VALID_FRU_TEXT			0x2
+
+/*
+ * Flags bits definitions for flags in struct cper_section_descriptor
+ *
+ * If set, the section is associated with the error condition
+ * directly, and should be focused on
+ */
+#define CPER_SEC_PRIMARY			0x0001
+/*
+ * If set, the error was not contained within the processor or memory
+ * hierarchy and the error may have propagated to persistent storage
+ * or network
+ */
+#define CPER_SEC_CONTAINMENT_WARNING		0x0002
+/* If set, the component must be re-initialized or re-enabled prior to use */
+#define CPER_SEC_RESET				0x0004
+/* If set, Linux may choose to discontinue use of the resource */
+#define CPER_SEC_ERROR_THRESHOLD_EXCEEDED	0x0008
+/*
+ * If set, resource could not be queried for error information due to
+ * conflicts with other system software or resources. Some fields of
+ * the section will be invalid
+ */
+#define CPER_SEC_RESOURCE_NOT_ACCESSIBLE	0x0010
+/*
+ * If set, action has been taken to ensure error containment (such as
+ * poisoning data), but the error has not been fully corrected and the
+ * data has not been consumed. Linux may choose to take further
+ * corrective action before the data is consumed
+ */
+#define CPER_SEC_LATENT_ERROR			0x0020
+
+/*
+ * Section type definitions, used in section_type field in struct
+ * cper_section_descriptor
+ *
+ * Processor Generic
+ */
+#define CPER_SEC_PROC_GENERIC						\
+	UUID_LE(0x9876CCAD, 0x47B4, 0x4bdb, 0xB6, 0x5E, 0x16, 0xF1,	\
+		0x93, 0xC4, 0xF3, 0xDB)
+/* Processor Specific: X86/X86_64 */
+#define CPER_SEC_PROC_IA						\
+	UUID_LE(0xDC3EA0B0, 0xA144, 0x4797, 0xB9, 0x5B, 0x53, 0xFA,	\
+		0x24, 0x2B, 0x6E, 0x1D)
+/* Processor Specific: IA64 */
+#define CPER_SEC_PROC_IPF						\
+	UUID_LE(0xE429FAF1, 0x3CB7, 0x11D4, 0x0B, 0xCA, 0x07, 0x00,	\
+		0x80, 0xC7, 0x3C, 0x88, 0x81)
+/* Platform Memory */
+#define CPER_SEC_PLATFORM_MEM						\
+	UUID_LE(0xA5BC1114, 0x6F64, 0x4EDE, 0xB8, 0x63, 0x3E, 0x83,	\
+		0xED, 0x7C, 0x83, 0xB1)
+#define CPER_SEC_PCIE							\
+	UUID_LE(0xD995E954, 0xBBC1, 0x430F, 0xAD, 0x91, 0xB4, 0x4D,	\
+		0xCB, 0x3C, 0x6F, 0x35)
+/* Firmware Error Record Reference */
+#define CPER_SEC_FW_ERR_REC_REF						\
+	UUID_LE(0x81212A96, 0x09ED, 0x4996, 0x94, 0x71, 0x8D, 0x72,	\
+		0x9C, 0x8E, 0x69, 0xED)
+/* PCI/PCI-X Bus */
+#define CPER_SEC_PCI_X_BUS						\
+	UUID_LE(0xC5753963, 0x3B84, 0x4095, 0xBF, 0x78, 0xED, 0xDA,	\
+		0xD3, 0xF9, 0xC9, 0xDD)
+/* PCI Component/Device */
+#define CPER_SEC_PCI_DEV						\
+	UUID_LE(0xEB5E4685, 0xCA66, 0x4769, 0xB6, 0xA2, 0x26, 0x06,	\
+		0x8B, 0x00, 0x13, 0x26)
+#define CPER_SEC_DMAR_GENERIC						\
+	UUID_LE(0x5B51FEF7, 0xC79D, 0x4434, 0x8F, 0x1B, 0xAA, 0x62,	\
+		0xDE, 0x3E, 0x2C, 0x64)
+/* Intel VT for Directed I/O specific DMAr */
+#define CPER_SEC_DMAR_VT						\
+	UUID_LE(0x71761D37, 0x32B2, 0x45cd, 0xA7, 0xD0, 0xB0, 0xFE,	\
+		0xDD, 0x93, 0xE8, 0xCF)
+/* IOMMU specific DMAr */
+#define CPER_SEC_DMAR_IOMMU						\
+	UUID_LE(0x036F84E1, 0x7F37, 0x428c, 0xA7, 0x9E, 0x57, 0x5F,	\
+		0xDF, 0xAA, 0x84, 0xEC)
+
+/*
+ * All tables and structs must be byte-packed to match CPER
+ * specification, since the tables are provided by the system BIOS
+ */
+#pragma pack(1)
+
+struct cper_record_header {
+	char	signature[CPER_SIG_SIZE];	/* must be CPER_SIG_RECORD */
+	__u16	revision;			/* must be CPER_RECORD_REV */
+	__u32	signature_end;			/* must be CPER_SIG_END */
+	__u16	section_count;
+	__u32	error_severity;
+	__u32	validation_bits;
+	__u32	record_length;
+	__u64	timestamp;
+	uuid_le	platform_id;
+	uuid_le	partition_id;
+	uuid_le	creator_id;
+	uuid_le	notification_type;
+	__u64	record_id;
+	__u32	flags;
+	__u64	persistence_information;
+	__u8	reserved[12];			/* must be zero */
+};
+
+struct cper_section_descriptor {
+	__u32	section_offset;		/* Offset in bytes of the
+					 *  section body from the base
+					 *  of the record header */
+	__u32	section_length;
+	__u16	revision;		/* must be CPER_RECORD_REV */
+	__u8	validation_bits;
+	__u8	reserved;		/* must be zero */
+	__u32	flags;
+	uuid_le	section_type;
+	uuid_le	fru_id;
+	__u32	section_severity;
+	__u8	fru_text[20];
+};
+
+/* Generic Processor Error Section */
+struct cper_sec_proc_generic {
+	__u64	validation_bits;
+	__u8	proc_type;
+	__u8	proc_isa;
+	__u8	proc_error_type;
+	__u8	operation;
+	__u8	flags;
+	__u8	level;
+	__u16	reserved;
+	__u64	cpu_version;
+	char	cpu_brand[128];
+	__u64	proc_id;
+	__u64	target_addr;
+	__u64	requestor_id;
+	__u64	responder_id;
+	__u64	ip;
+};
+
+/* IA32/X64 Processor Error Section */
+struct cper_sec_proc_ia {
+	__u64	validation_bits;
+	__u8	lapic_id;
+	__u8	cpuid[48];
+};
+
+/* IA32/X64 Processor Error Infomation Structure */
+struct cper_ia_err_info {
+	uuid_le	err_type;
+	__u64	validation_bits;
+	__u64	check_info;
+	__u64	target_id;
+	__u64	requestor_id;
+	__u64	responder_id;
+	__u64	ip;
+};
+
+/* IA32/X64 Processor Context Information Structure */
+struct cper_ia_proc_ctx {
+	__u16	reg_ctx_type;
+	__u16	reg_arr_size;
+	__u32	msr_addr;
+	__u64	mm_reg_addr;
+};
+
+/* Memory Error Section */
+struct cper_sec_mem_err {
+	__u64	validation_bits;
+	__u64	error_status;
+	__u64	physical_addr;
+	__u64	physical_addr_mask;
+	__u16	node;
+	__u16	card;
+	__u16	module;
+	__u16	bank;
+	__u16	device;
+	__u16	row;
+	__u16	column;
+	__u16	bit_pos;
+	__u64	requestor_id;
+	__u64	responder_id;
+	__u64	target_id;
+	__u8	error_type;
+};
+
+/* Reset to default packing */
+#pragma pack()
+
+u64 cper_next_record_id(void);
+
+#endif
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index fc1b930..e7d9b20 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -63,6 +63,8 @@ struct dentry *debugfs_create_x16(const char *name, mode_t mode,
 				  struct dentry *parent, u16 *value);
 struct dentry *debugfs_create_x32(const char *name, mode_t mode,
 				  struct dentry *parent, u32 *value);
+struct dentry *debugfs_create_x64(const char *name, mode_t mode,
+				  struct dentry *parent, u64 *value);
 struct dentry *debugfs_create_size_t(const char *name, mode_t mode,
 				     struct dentry *parent, size_t *value);
 struct dentry *debugfs_create_bool(const char *name, mode_t mode,
diff --git a/include/linux/pci.h b/include/linux/pci.h
index a327322..6a471ab 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -311,7 +311,8 @@ struct pci_dev {
 	unsigned int	is_virtfn:1;
 	unsigned int	reset_fn:1;
 	unsigned int    is_hotplug_bridge:1;
-	unsigned int    aer_firmware_first:1;
+	unsigned int    __aer_firmware_first_valid:1;
+	unsigned int	__aer_firmware_first:1;
 	pci_dev_flags_t dev_flags;
 	atomic_t	enable_cnt;	/* pci_enable_device has been called */
 
diff --git a/include/linux/uuid.h b/include/linux/uuid.h
new file mode 100644
index 0000000..5b7efbf
--- /dev/null
+++ b/include/linux/uuid.h
@@ -0,0 +1,70 @@
+/*
+ * UUID/GUID definition
+ *
+ * Copyright (C) 2010, Intel Corp.
+ *	Huang Ying <ying.huang@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef _LINUX_UUID_H_
+#define _LINUX_UUID_H_
+
+#include <linux/types.h>
+#include <linux/string.h>
+
+typedef struct {
+	__u8 b[16];
+} uuid_le;
+
+typedef struct {
+	__u8 b[16];
+} uuid_be;
+
+#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
+((uuid_le)								\
+{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+   (b) & 0xff, ((b) >> 8) & 0xff,					\
+   (c) & 0xff, ((c) >> 8) & 0xff,					\
+   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+
+#define UUID_BE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)		\
+((uuid_be)								\
+{{ ((a) >> 24) & 0xff, ((a) >> 16) & 0xff, ((a) >> 8) & 0xff, (a) & 0xff, \
+   ((b) >> 8) & 0xff, (b) & 0xff,					\
+   ((c) >> 8) & 0xff, (c) & 0xff,					\
+   (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
+
+#define NULL_UUID_LE							\
+	UUID_LE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
+		0x00, 0x00, 0x00, 0x00)
+
+#define NULL_UUID_BE							\
+	UUID_BE(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00,	\
+		0x00, 0x00, 0x00, 0x00)
+
+static inline int uuid_le_cmp(const uuid_le u1, const uuid_le u2)
+{
+	return memcmp(&u1, &u2, sizeof(uuid_le));
+}
+
+static inline int uuid_be_cmp(const uuid_be u1, const uuid_be u2)
+{
+	return memcmp(&u1, &u2, sizeof(uuid_be));
+}
+
+extern void uuid_le_gen(uuid_le *u);
+extern void uuid_be_gen(uuid_be *u);
+
+#endif