ext4: Remove redundant unlikely()

[zen-stable.git] / include / linux / cper.h

/*
 * 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_SEV_RECOVERABLE                    0x0
#define CPER_SEV_FATAL                          0x1
#define CPER_SEV_CORRECTED                      0x2
#define CPER_SEV_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