linux/arch/alpha/kernel/err_ev7.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 *      linux/arch/alpha/kernel/err_ev7.c
   4 *
   5 *      Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
   6 *
   7 *      Error handling code supporting Alpha systems
   8 */
   9
  10#include <linux/init.h>
  11#include <linux/sched.h>
  12
  13#include <asm/io.h>
  14#include <asm/hwrpb.h>
  15#include <asm/smp.h>
  16#include <asm/err_common.h>
  17#include <asm/err_ev7.h>
  18
  19#include "err_impl.h"
  20#include "proto.h"
  21
  22struct ev7_lf_subpackets *
  23ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
  24                                    struct ev7_lf_subpackets *lf_subpackets)
  25{
  26        struct el_subpacket *subpacket;
  27        int i;
  28
  29        /*
  30         * A Marvel machine check frame is always packaged in an
  31         * el_subpacket of class HEADER, type LOGOUT_FRAME.
  32         */
  33        if (el_ptr->class != EL_CLASS__HEADER || 
  34            el_ptr->type != EL_TYPE__HEADER__LOGOUT_FRAME)
  35                return NULL;
  36
  37        /*
  38         * It is a logout frame header. Look at the one subpacket.
  39         */
  40        el_ptr = (struct el_subpacket *)
  41                ((unsigned long)el_ptr + el_ptr->length);
  42
  43        /*
  44         * It has to be class PAL, type LOGOUT_FRAME.
  45         */
  46        if (el_ptr->class != EL_CLASS__PAL ||
  47            el_ptr->type != EL_TYPE__PAL__LOGOUT_FRAME)
  48                return NULL;
  49
  50        lf_subpackets->logout = (struct ev7_pal_logout_subpacket *)
  51                el_ptr->by_type.raw.data_start;
  52
  53        /*
  54         * Process the subpackets.
  55         */
  56        subpacket = (struct el_subpacket *)
  57                ((unsigned long)el_ptr + el_ptr->length);
  58        for (i = 0;
  59             subpacket && i < lf_subpackets->logout->subpacket_count;
  60             subpacket = (struct el_subpacket *)
  61                     ((unsigned long)subpacket + subpacket->length), i++) {
  62                /*
  63                 * All subpackets should be class PAL.
  64                 */
  65                if (subpacket->class != EL_CLASS__PAL) {
  66                        printk("%s**UNEXPECTED SUBPACKET CLASS %d "
  67                               "IN LOGOUT FRAME (packet %d\n",
  68                               err_print_prefix, subpacket->class, i);
  69                        return NULL;
  70                }
  71
  72                /*
  73                 * Remember the subpacket.
  74                 */
  75                switch(subpacket->type) {
  76                case EL_TYPE__PAL__EV7_PROCESSOR:
  77                        lf_subpackets->ev7 =
  78                                (struct ev7_pal_processor_subpacket *)
  79                                subpacket->by_type.raw.data_start;
  80                        break;
  81
  82                case EL_TYPE__PAL__EV7_RBOX:
  83                        lf_subpackets->rbox = (struct ev7_pal_rbox_subpacket *)
  84                                subpacket->by_type.raw.data_start;
  85                        break;
  86
  87                case EL_TYPE__PAL__EV7_ZBOX:
  88                        lf_subpackets->zbox = (struct ev7_pal_zbox_subpacket *)
  89                                subpacket->by_type.raw.data_start;
  90                        break;
  91
  92                case EL_TYPE__PAL__EV7_IO:
  93                        lf_subpackets->io = (struct ev7_pal_io_subpacket *)
  94                                subpacket->by_type.raw.data_start;
  95                        break;
  96
  97                case EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE:
  98                case EL_TYPE__PAL__ENV__AIRMOVER_FAN:
  99                case EL_TYPE__PAL__ENV__VOLTAGE:
 100                case EL_TYPE__PAL__ENV__INTRUSION:
 101                case EL_TYPE__PAL__ENV__POWER_SUPPLY:
 102                case EL_TYPE__PAL__ENV__LAN:
 103                case EL_TYPE__PAL__ENV__HOT_PLUG:
 104                        lf_subpackets->env[ev7_lf_env_index(subpacket->type)] =
 105                                (struct ev7_pal_environmental_subpacket *)
 106                                subpacket->by_type.raw.data_start;
 107                        break;
 108                                
 109                default:
 110                        /*
 111                         * Don't know what kind of frame this is.
 112                         */
 113                        return NULL;
 114                }
 115        }
 116
 117        return lf_subpackets;
 118}
 119
 120void
 121ev7_machine_check(unsigned long vector, unsigned long la_ptr)
 122{
 123        struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
 124        char *saved_err_prefix = err_print_prefix;
 125
 126        /*
 127         * Sync the processor
 128         */
 129        mb();
 130        draina();
 131
 132        err_print_prefix = KERN_CRIT;
 133        printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d\n",
 134               err_print_prefix, 
 135               (vector == SCB_Q_PROCERR) ? "Correctable" : "Uncorrectable",
 136               (unsigned int)vector, (int)smp_processor_id());
 137        el_process_subpacket(el_ptr);
 138        err_print_prefix = saved_err_prefix;
 139
 140        /* 
 141         * Release the logout frame 
 142         */
 143        wrmces(0x7);
 144        mb();
 145}
 146
 147static char *el_ev7_processor_subpacket_annotation[] = {
 148        "Subpacket Header",     "I_STAT",       "DC_STAT",
 149        "C_ADDR",               "C_SYNDROME_1", "C_SYNDROME_0",
 150        "C_STAT",               "C_STS",        "MM_STAT",
 151        "EXC_ADDR",             "IER_CM",       "ISUM",
 152        "PAL_BASE",             "I_CTL",        "PROCESS_CONTEXT",
 153        "CBOX_CTL",             "CBOX_STP_CTL", "CBOX_ACC_CTL",
 154        "CBOX_LCL_SET",         "CBOX_GLB_SET", "BBOX_CTL",
 155        "BBOX_ERR_STS",         "BBOX_ERR_IDX", "CBOX_DDP_ERR_STS",
 156        "BBOX_DAT_RMP",         NULL
 157};
 158
 159static char *el_ev7_zbox_subpacket_annotation[] = {
 160        "Subpacket Header",     
 161        "ZBOX(0): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
 162        "ZBOX(0): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
 163        "ZBOX(0): DIFT_TIMEOUT      / DRAM_ERR_ADR",
 164        "ZBOX(0): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
 165        "ZBOX(0): reserved          / DIFT_ERR_STATUS",
 166        "ZBOX(1): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
 167        "ZBOX(1): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
 168        "ZBOX(1): DIFT_TIMEOUT      / DRAM_ERR_ADR",
 169        "ZBOX(1): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
 170        "ZBOX(1): reserved          / DIFT_ERR_STATUS",
 171        "CBOX_CTL",             "CBOX_STP_CTL",
 172        "ZBOX(0)_ERROR_PA",     "ZBOX(1)_ERROR_PA",
 173        "ZBOX(0)_ORED_SYNDROME","ZBOX(1)_ORED_SYNDROME",
 174        NULL
 175};
 176
 177static char *el_ev7_rbox_subpacket_annotation[] = {
 178        "Subpacket Header",     "RBOX_CFG",     "RBOX_N_CFG",
 179        "RBOX_S_CFG",           "RBOX_E_CFG",   "RBOX_W_CFG",
 180        "RBOX_N_ERR",           "RBOX_S_ERR",   "RBOX_E_ERR",
 181        "RBOX_W_ERR",           "RBOX_IO_CFG",  "RBOX_IO_ERR",
 182        "RBOX_L_ERR",           "RBOX_WHOAMI",  "RBOX_IMASL",
 183        "RBOX_INTQ",            "RBOX_INT",     NULL
 184};
 185
 186static char *el_ev7_io_subpacket_annotation[] = {
 187        "Subpacket Header",     "IO_ASIC_REV",  "IO_SYS_REV",
 188        "IO7_UPH",              "HPI_CTL",      "CRD_CTL",
 189        "HEI_CTL",              "PO7_ERROR_SUM","PO7_UNCRR_SYM",
 190        "PO7_CRRCT_SYM",        "PO7_UGBGE_SYM","PO7_ERR_PKT0",
 191        "PO7_ERR_PKT1",         "reserved",     "reserved",
 192        "PO0_ERR_SUM",          "PO0_TLB_ERR",  "PO0_SPL_COMPLT",
 193        "PO0_TRANS_SUM",        "PO0_FIRST_ERR","PO0_MULT_ERR",
 194        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 195        "DM CSR PH",            "reserved",
 196        "PO1_ERR_SUM",          "PO1_TLB_ERR",  "PO1_SPL_COMPLT",
 197        "PO1_TRANS_SUM",        "PO1_FIRST_ERR","PO1_MULT_ERR",
 198        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 199        "DM CSR PH",            "reserved",
 200        "PO2_ERR_SUM",          "PO2_TLB_ERR",  "PO2_SPL_COMPLT",
 201        "PO2_TRANS_SUM",        "PO2_FIRST_ERR","PO2_MULT_ERR",
 202        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 203        "DM CSR PH",            "reserved",
 204        "PO3_ERR_SUM",          "PO3_TLB_ERR",  "PO3_SPL_COMPLT",
 205        "PO3_TRANS_SUM",        "PO3_FIRST_ERR","PO3_MULT_ERR",
 206        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 207        "DM CSR PH",            "reserved",     
 208        NULL
 209};
 210        
 211static struct el_subpacket_annotation el_ev7_pal_annotations[] = {
 212        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 213                             EL_TYPE__PAL__EV7_PROCESSOR,
 214                             1,
 215                             "EV7 Processor Subpacket",
 216                             el_ev7_processor_subpacket_annotation),
 217        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 218                             EL_TYPE__PAL__EV7_ZBOX,
 219                             1,
 220                             "EV7 ZBOX Subpacket",
 221                             el_ev7_zbox_subpacket_annotation),
 222        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 223                             EL_TYPE__PAL__EV7_RBOX,
 224                             1,
 225                             "EV7 RBOX Subpacket",
 226                             el_ev7_rbox_subpacket_annotation),
 227        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 228                             EL_TYPE__PAL__EV7_IO,
 229                             1,
 230                             "EV7 IO Subpacket",
 231                             el_ev7_io_subpacket_annotation)
 232};
 233
 234static struct el_subpacket *
 235ev7_process_pal_subpacket(struct el_subpacket *header)
 236{
 237        struct ev7_pal_subpacket *packet;
 238
 239        if (header->class != EL_CLASS__PAL) {
 240                printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
 241                       err_print_prefix,
 242                       header->class, header->type);
 243                return NULL;
 244        }
 245
 246        packet = (struct ev7_pal_subpacket *)header->by_type.raw.data_start;
 247
 248        switch(header->type) {
 249        case EL_TYPE__PAL__LOGOUT_FRAME:
 250                printk("%s*** MCHK occurred on LPID %lld (RBOX %llx)\n",
 251                       err_print_prefix,
 252                       packet->by_type.logout.whami, 
 253                       packet->by_type.logout.rbox_whami);
 254                el_print_timestamp(&packet->by_type.logout.timestamp);
 255                printk("%s  EXC_ADDR: %016llx\n"
 256                         "  HALT_CODE: %llx\n",
 257                       err_print_prefix,
 258                       packet->by_type.logout.exc_addr,
 259                       packet->by_type.logout.halt_code);
 260                el_process_subpackets(header,
 261                                      packet->by_type.logout.subpacket_count);
 262                break;
 263        default:
 264                printk("%s  ** PAL TYPE %d SUBPACKET\n", 
 265                       err_print_prefix,
 266                       header->type);
 267                el_annotate_subpacket(header);
 268                break;
 269        }
 270        
 271        return (struct el_subpacket *)((unsigned long)header + header->length);
 272}
 273
 274struct el_subpacket_handler ev7_pal_subpacket_handler =
 275        SUBPACKET_HANDLER_INIT(EL_CLASS__PAL, ev7_process_pal_subpacket);
 276
 277void __init
 278ev7_register_error_handlers(void)
 279{
 280        int i;
 281
 282        for (i = 0; i < ARRAY_SIZE(el_ev7_pal_annotations); i++)
 283                cdl_register_subpacket_annotation(&el_ev7_pal_annotations[i]);
 284
 285        cdl_register_subpacket_handler(&ev7_pal_subpacket_handler);
 286}
 287
 288