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/*
* Machine check exception header file.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* Copyright 2013 IBM Corporation
* Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
*/
#ifndef __ASM_PPC64_MCE_H__
#define __ASM_PPC64_MCE_H__
#include <linux/bitops.h>
enum MCE_Version {
MCE_V1 = 1,
};
enum MCE_Severity {
MCE_SEV_NO_ERROR = 0,
MCE_SEV_WARNING = 1,
MCE_SEV_ERROR_SYNC = 2,
MCE_SEV_FATAL = 3,
};
enum MCE_Disposition {
MCE_DISPOSITION_RECOVERED = 0,
MCE_DISPOSITION_NOT_RECOVERED = 1,
};
enum MCE_Initiator {
MCE_INITIATOR_UNKNOWN = 0,
MCE_INITIATOR_CPU = 1,
};
enum MCE_ErrorType {
MCE_ERROR_TYPE_UNKNOWN = 0,
MCE_ERROR_TYPE_UE = 1,
MCE_ERROR_TYPE_SLB = 2,
MCE_ERROR_TYPE_ERAT = 3,
MCE_ERROR_TYPE_TLB = 4,
MCE_ERROR_TYPE_USER = 5,
MCE_ERROR_TYPE_RA = 6,
MCE_ERROR_TYPE_LINK = 7,
};
enum MCE_UeErrorType {
MCE_UE_ERROR_INDETERMINATE = 0,
MCE_UE_ERROR_IFETCH = 1,
MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
MCE_UE_ERROR_LOAD_STORE = 3,
MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4,
};
enum MCE_SlbErrorType {
MCE_SLB_ERROR_INDETERMINATE = 0,
MCE_SLB_ERROR_PARITY = 1,
MCE_SLB_ERROR_MULTIHIT = 2,
};
enum MCE_EratErrorType {
MCE_ERAT_ERROR_INDETERMINATE = 0,
MCE_ERAT_ERROR_PARITY = 1,
MCE_ERAT_ERROR_MULTIHIT = 2,
};
enum MCE_TlbErrorType {
MCE_TLB_ERROR_INDETERMINATE = 0,
MCE_TLB_ERROR_PARITY = 1,
MCE_TLB_ERROR_MULTIHIT = 2,
};
enum MCE_UserErrorType {
MCE_USER_ERROR_INDETERMINATE = 0,
MCE_USER_ERROR_TLBIE = 1,
};
enum MCE_RaErrorType {
MCE_RA_ERROR_INDETERMINATE = 0,
MCE_RA_ERROR_IFETCH = 1,
MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 3,
MCE_RA_ERROR_LOAD = 4,
MCE_RA_ERROR_STORE = 5,
MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 6,
MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 7,
MCE_RA_ERROR_LOAD_STORE_FOREIGN = 8,
};
enum MCE_LinkErrorType {
MCE_LINK_ERROR_INDETERMINATE = 0,
MCE_LINK_ERROR_IFETCH_TIMEOUT = 1,
MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2,
MCE_LINK_ERROR_LOAD_TIMEOUT = 3,
MCE_LINK_ERROR_STORE_TIMEOUT = 4,
MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5,
};
struct machine_check_event {
enum MCE_Version version:8; /* 0x00 */
uint8_t in_use; /* 0x01 */
enum MCE_Severity severity:8; /* 0x02 */
enum MCE_Initiator initiator:8; /* 0x03 */
enum MCE_ErrorType error_type:8; /* 0x04 */
enum MCE_Disposition disposition:8; /* 0x05 */
uint8_t reserved_1[2]; /* 0x06 */
uint64_t gpr3; /* 0x08 */
uint64_t srr0; /* 0x10 */
uint64_t srr1; /* 0x18 */
union { /* 0x20 */
struct {
enum MCE_UeErrorType ue_error_type:8;
uint8_t effective_address_provided;
uint8_t physical_address_provided;
uint8_t reserved_1[5];
uint64_t effective_address;
uint64_t physical_address;
uint8_t reserved_2[8];
} ue_error;
struct {
enum MCE_SlbErrorType slb_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} slb_error;
struct {
enum MCE_EratErrorType erat_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} erat_error;
struct {
enum MCE_TlbErrorType tlb_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} tlb_error;
struct {
enum MCE_UserErrorType user_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} user_error;
struct {
enum MCE_RaErrorType ra_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} ra_error;
struct {
enum MCE_LinkErrorType link_error_type:8;
uint8_t effective_address_provided;
uint8_t reserved_1[6];
uint64_t effective_address;
uint8_t reserved_2[16];
} link_error;
} u;
};
struct mce_error_info {
enum MCE_ErrorType error_type:8;
union {
enum MCE_UeErrorType ue_error_type:8;
enum MCE_SlbErrorType slb_error_type:8;
enum MCE_EratErrorType erat_error_type:8;
enum MCE_TlbErrorType tlb_error_type:8;
enum MCE_UserErrorType user_error_type:8;
enum MCE_RaErrorType ra_error_type:8;
enum MCE_LinkErrorType link_error_type:8;
} u;
enum MCE_Severity severity:8;
enum MCE_Initiator initiator:8;
};
#define MAX_MC_EVT 100
/* Release flags for get_mce_event() */
#define MCE_EVENT_RELEASE true
#define MCE_EVENT_DONTRELEASE false
extern void save_mce_event(struct pt_regs *regs, long handled,
struct mce_error_info *mce_err, uint64_t nip,
uint64_t addr);
extern int get_mce_event(struct machine_check_event *mce, bool release);
extern void release_mce_event(void);
extern void machine_check_queue_event(void);
extern void machine_check_print_event_info(struct machine_check_event *evt,
bool user_mode);
extern uint64_t get_mce_fault_addr(struct machine_check_event *evt);
#endif /* __ASM_PPC64_MCE_H__ */
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