269 lines
6.6 KiB
C
269 lines
6.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Machine check exception header file.
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*
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* Copyright 2013 IBM Corporation
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* Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
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*/
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#ifndef __ASM_PPC64_MCE_H__
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#define __ASM_PPC64_MCE_H__
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#include <linux/bitops.h>
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enum MCE_Version {
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MCE_V1 = 1,
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};
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enum MCE_Severity {
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MCE_SEV_NO_ERROR = 0,
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MCE_SEV_WARNING = 1,
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MCE_SEV_SEVERE = 2,
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MCE_SEV_FATAL = 3,
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};
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enum MCE_Disposition {
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MCE_DISPOSITION_RECOVERED = 0,
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MCE_DISPOSITION_NOT_RECOVERED = 1,
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};
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enum MCE_Initiator {
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MCE_INITIATOR_UNKNOWN = 0,
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MCE_INITIATOR_CPU = 1,
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MCE_INITIATOR_PCI = 2,
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MCE_INITIATOR_ISA = 3,
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MCE_INITIATOR_MEMORY= 4,
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MCE_INITIATOR_POWERMGM = 5,
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};
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enum MCE_ErrorType {
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MCE_ERROR_TYPE_UNKNOWN = 0,
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MCE_ERROR_TYPE_UE = 1,
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MCE_ERROR_TYPE_SLB = 2,
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MCE_ERROR_TYPE_ERAT = 3,
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MCE_ERROR_TYPE_TLB = 4,
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MCE_ERROR_TYPE_USER = 5,
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MCE_ERROR_TYPE_RA = 6,
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MCE_ERROR_TYPE_LINK = 7,
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MCE_ERROR_TYPE_DCACHE = 8,
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MCE_ERROR_TYPE_ICACHE = 9,
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};
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enum MCE_ErrorClass {
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MCE_ECLASS_UNKNOWN = 0,
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MCE_ECLASS_HARDWARE,
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MCE_ECLASS_HARD_INDETERMINATE,
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MCE_ECLASS_SOFTWARE,
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MCE_ECLASS_SOFT_INDETERMINATE,
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};
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enum MCE_UeErrorType {
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MCE_UE_ERROR_INDETERMINATE = 0,
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MCE_UE_ERROR_IFETCH = 1,
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MCE_UE_ERROR_PAGE_TABLE_WALK_IFETCH = 2,
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MCE_UE_ERROR_LOAD_STORE = 3,
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MCE_UE_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 4,
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};
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enum MCE_SlbErrorType {
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MCE_SLB_ERROR_INDETERMINATE = 0,
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MCE_SLB_ERROR_PARITY = 1,
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MCE_SLB_ERROR_MULTIHIT = 2,
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};
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enum MCE_EratErrorType {
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MCE_ERAT_ERROR_INDETERMINATE = 0,
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MCE_ERAT_ERROR_PARITY = 1,
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MCE_ERAT_ERROR_MULTIHIT = 2,
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};
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enum MCE_TlbErrorType {
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MCE_TLB_ERROR_INDETERMINATE = 0,
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MCE_TLB_ERROR_PARITY = 1,
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MCE_TLB_ERROR_MULTIHIT = 2,
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};
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enum MCE_UserErrorType {
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MCE_USER_ERROR_INDETERMINATE = 0,
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MCE_USER_ERROR_TLBIE = 1,
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MCE_USER_ERROR_SCV = 2,
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};
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enum MCE_RaErrorType {
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MCE_RA_ERROR_INDETERMINATE = 0,
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MCE_RA_ERROR_IFETCH = 1,
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MCE_RA_ERROR_IFETCH_FOREIGN = 2,
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MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH = 3,
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MCE_RA_ERROR_PAGE_TABLE_WALK_IFETCH_FOREIGN = 4,
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MCE_RA_ERROR_LOAD = 5,
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MCE_RA_ERROR_STORE = 6,
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MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE = 7,
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MCE_RA_ERROR_PAGE_TABLE_WALK_LOAD_STORE_FOREIGN = 8,
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MCE_RA_ERROR_LOAD_STORE_FOREIGN = 9,
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};
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enum MCE_LinkErrorType {
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MCE_LINK_ERROR_INDETERMINATE = 0,
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MCE_LINK_ERROR_IFETCH_TIMEOUT = 1,
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MCE_LINK_ERROR_PAGE_TABLE_WALK_IFETCH_TIMEOUT = 2,
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MCE_LINK_ERROR_LOAD_TIMEOUT = 3,
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MCE_LINK_ERROR_STORE_TIMEOUT = 4,
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MCE_LINK_ERROR_PAGE_TABLE_WALK_LOAD_STORE_TIMEOUT = 5,
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};
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struct machine_check_event {
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enum MCE_Version version:8;
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u8 in_use;
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enum MCE_Severity severity:8;
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enum MCE_Initiator initiator:8;
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enum MCE_ErrorType error_type:8;
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enum MCE_ErrorClass error_class:8;
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enum MCE_Disposition disposition:8;
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bool sync_error;
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u16 cpu;
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u64 gpr3;
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u64 srr0;
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u64 srr1;
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union {
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struct {
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enum MCE_UeErrorType ue_error_type:8;
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u8 effective_address_provided;
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u8 physical_address_provided;
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u8 ignore_event;
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u8 reserved_1[4];
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u64 effective_address;
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u64 physical_address;
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u8 reserved_2[8];
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} ue_error;
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struct {
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enum MCE_SlbErrorType slb_error_type:8;
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u8 effective_address_provided;
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u8 reserved_1[6];
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u64 effective_address;
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u8 reserved_2[16];
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} slb_error;
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struct {
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enum MCE_EratErrorType erat_error_type:8;
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u8 effective_address_provided;
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u8 reserved_1[6];
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u64 effective_address;
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u8 reserved_2[16];
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} erat_error;
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struct {
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enum MCE_TlbErrorType tlb_error_type:8;
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u8 effective_address_provided;
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u8 reserved_1[6];
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u64 effective_address;
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u8 reserved_2[16];
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} tlb_error;
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struct {
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enum MCE_UserErrorType user_error_type:8;
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u8 effective_address_provided;
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u8 reserved_1[6];
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u64 effective_address;
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u8 reserved_2[16];
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} user_error;
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struct {
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enum MCE_RaErrorType ra_error_type:8;
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u8 effective_address_provided;
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u8 reserved_1[6];
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u64 effective_address;
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u8 reserved_2[16];
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} ra_error;
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struct {
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enum MCE_LinkErrorType link_error_type:8;
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u8 effective_address_provided;
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u8 reserved_1[6];
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u64 effective_address;
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u8 reserved_2[16];
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} link_error;
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} u;
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};
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struct mce_error_info {
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enum MCE_ErrorType error_type:8;
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union {
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enum MCE_UeErrorType ue_error_type:8;
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enum MCE_SlbErrorType slb_error_type:8;
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enum MCE_EratErrorType erat_error_type:8;
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enum MCE_TlbErrorType tlb_error_type:8;
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enum MCE_UserErrorType user_error_type:8;
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enum MCE_RaErrorType ra_error_type:8;
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enum MCE_LinkErrorType link_error_type:8;
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} u;
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enum MCE_Severity severity:8;
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enum MCE_Initiator initiator:8;
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enum MCE_ErrorClass error_class:8;
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bool sync_error;
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bool ignore_event;
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};
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#define MAX_MC_EVT 10
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struct mce_info {
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int mce_nest_count;
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struct machine_check_event mce_event[MAX_MC_EVT];
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/* Queue for delayed MCE events. */
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int mce_queue_count;
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struct machine_check_event mce_event_queue[MAX_MC_EVT];
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/* Queue for delayed MCE UE events. */
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int mce_ue_count;
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struct machine_check_event mce_ue_event_queue[MAX_MC_EVT];
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};
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/* Release flags for get_mce_event() */
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#define MCE_EVENT_RELEASE true
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#define MCE_EVENT_DONTRELEASE false
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struct pt_regs;
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struct notifier_block;
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extern void save_mce_event(struct pt_regs *regs, long handled,
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struct mce_error_info *mce_err, uint64_t nip,
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uint64_t addr, uint64_t phys_addr);
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extern int get_mce_event(struct machine_check_event *mce, bool release);
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extern void release_mce_event(void);
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extern void machine_check_queue_event(void);
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extern void machine_check_print_event_info(struct machine_check_event *evt,
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bool user_mode, bool in_guest);
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unsigned long addr_to_pfn(struct pt_regs *regs, unsigned long addr);
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extern void mce_common_process_ue(struct pt_regs *regs,
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struct mce_error_info *mce_err);
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void mce_irq_work_queue(void);
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int mce_register_notifier(struct notifier_block *nb);
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int mce_unregister_notifier(struct notifier_block *nb);
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#ifdef CONFIG_PPC_BOOK3S_64
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void mce_run_irq_context_handlers(void);
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#else
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static inline void mce_run_irq_context_handlers(void) { };
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#endif /* CONFIG_PPC_BOOK3S_64 */
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#ifdef CONFIG_PPC_BOOK3S_64
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void set_mce_pending_irq_work(void);
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void clear_mce_pending_irq_work(void);
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#endif /* CONFIG_PPC_BOOK3S_64 */
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#ifdef CONFIG_PPC_BOOK3S_64
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void flush_and_reload_slb(void);
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void flush_erat(void);
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long __machine_check_early_realmode_p7(struct pt_regs *regs);
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long __machine_check_early_realmode_p8(struct pt_regs *regs);
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long __machine_check_early_realmode_p9(struct pt_regs *regs);
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long __machine_check_early_realmode_p10(struct pt_regs *regs);
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#endif /* CONFIG_PPC_BOOK3S_64 */
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#ifdef CONFIG_PPC_BOOK3S_64
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void mce_init(void);
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#else
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static inline void mce_init(void) { };
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#endif /* CONFIG_PPC_BOOK3S_64 */
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#endif /* __ASM_PPC64_MCE_H__ */
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