linux/arch/alpha/kernel/err_ev7.c
<<
>>
Prefs
   1/*
   2 *      linux/arch/alpha/kernel/err_ev7.c
   3 *
   4 *      Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
   5 *
   6 *      Error handling code supporting Alpha systems
   7 */
   8
   9#include <linux/init.h>
  10#include <linux/sched.h>
  11
  12#include <asm/io.h>
  13#include <asm/hwrpb.h>
  14#include <asm/smp.h>
  15#include <asm/err_common.h>
  16#include <asm/err_ev7.h>
  17
  18#include "err_impl.h"
  19#include "proto.h"
  20
  21struct ev7_lf_subpackets *
  22ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
  23                                    struct ev7_lf_subpackets *lf_subpackets)
  24{
  25        struct el_subpacket *subpacket;
  26        int i;
  27
  28        /*
  29         * A Marvel machine check frame is always packaged in an
  30         * el_subpacket of class HEADER, type LOGOUT_FRAME.
  31         */
  32        if (el_ptr->class != EL_CLASS__HEADER || 
  33            el_ptr->type != EL_TYPE__HEADER__LOGOUT_FRAME)
  34                return NULL;
  35
  36        /*
  37         * It is a logout frame header. Look at the one subpacket.
  38         */
  39        el_ptr = (struct el_subpacket *)
  40                ((unsigned long)el_ptr + el_ptr->length);
  41
  42        /*
  43         * It has to be class PAL, type LOGOUT_FRAME.
  44         */
  45        if (el_ptr->class != EL_CLASS__PAL ||
  46            el_ptr->type != EL_TYPE__PAL__LOGOUT_FRAME)
  47                return NULL;
  48
  49        lf_subpackets->logout = (struct ev7_pal_logout_subpacket *)
  50                el_ptr->by_type.raw.data_start;
  51
  52        /*
  53         * Process the subpackets.
  54         */
  55        subpacket = (struct el_subpacket *)
  56                ((unsigned long)el_ptr + el_ptr->length);
  57        for (i = 0;
  58             subpacket && i < lf_subpackets->logout->subpacket_count;
  59             subpacket = (struct el_subpacket *)
  60                     ((unsigned long)subpacket + subpacket->length), i++) {
  61                /*
  62                 * All subpackets should be class PAL.
  63                 */
  64                if (subpacket->class != EL_CLASS__PAL) {
  65                        printk("%s**UNEXPECTED SUBPACKET CLASS %d "
  66                               "IN LOGOUT FRAME (packet %d\n",
  67                               err_print_prefix, subpacket->class, i);
  68                        return NULL;
  69                }
  70
  71                /*
  72                 * Remember the subpacket.
  73                 */
  74                switch(subpacket->type) {
  75                case EL_TYPE__PAL__EV7_PROCESSOR:
  76                        lf_subpackets->ev7 =
  77                                (struct ev7_pal_processor_subpacket *)
  78                                subpacket->by_type.raw.data_start;
  79                        break;
  80
  81                case EL_TYPE__PAL__EV7_RBOX:
  82                        lf_subpackets->rbox = (struct ev7_pal_rbox_subpacket *)
  83                                subpacket->by_type.raw.data_start;
  84                        break;
  85
  86                case EL_TYPE__PAL__EV7_ZBOX:
  87                        lf_subpackets->zbox = (struct ev7_pal_zbox_subpacket *)
  88                                subpacket->by_type.raw.data_start;
  89                        break;
  90
  91                case EL_TYPE__PAL__EV7_IO:
  92                        lf_subpackets->io = (struct ev7_pal_io_subpacket *)
  93                                subpacket->by_type.raw.data_start;
  94                        break;
  95
  96                case EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE:
  97                case EL_TYPE__PAL__ENV__AIRMOVER_FAN:
  98                case EL_TYPE__PAL__ENV__VOLTAGE:
  99                case EL_TYPE__PAL__ENV__INTRUSION:
 100                case EL_TYPE__PAL__ENV__POWER_SUPPLY:
 101                case EL_TYPE__PAL__ENV__LAN:
 102                case EL_TYPE__PAL__ENV__HOT_PLUG:
 103                        lf_subpackets->env[ev7_lf_env_index(subpacket->type)] =
 104                                (struct ev7_pal_environmental_subpacket *)
 105                                subpacket->by_type.raw.data_start;
 106                        break;
 107                                
 108                default:
 109                        /*
 110                         * Don't know what kind of frame this is.
 111                         */
 112                        return NULL;
 113                }
 114        }
 115
 116        return lf_subpackets;
 117}
 118
 119void
 120ev7_machine_check(u64 vector, u64 la_ptr)
 121{
 122        struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
 123        char *saved_err_prefix = err_print_prefix;
 124
 125        /*
 126         * Sync the processor
 127         */
 128        mb();
 129        draina();
 130
 131        err_print_prefix = KERN_CRIT;
 132        printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d\n",
 133               err_print_prefix, 
 134               (vector == SCB_Q_PROCERR) ? "Correctable" : "Uncorrectable",
 135               (unsigned int)vector, (int)smp_processor_id());
 136        el_process_subpacket(el_ptr);
 137        err_print_prefix = saved_err_prefix;
 138
 139        /* 
 140         * Release the logout frame 
 141         */
 142        wrmces(0x7);
 143        mb();
 144}
 145
 146static char *el_ev7_processor_subpacket_annotation[] = {
 147        "Subpacket Header",     "I_STAT",       "DC_STAT",
 148        "C_ADDR",               "C_SYNDROME_1", "C_SYNDROME_0",
 149        "C_STAT",               "C_STS",        "MM_STAT",
 150        "EXC_ADDR",             "IER_CM",       "ISUM",
 151        "PAL_BASE",             "I_CTL",        "PROCESS_CONTEXT",
 152        "CBOX_CTL",             "CBOX_STP_CTL", "CBOX_ACC_CTL",
 153        "CBOX_LCL_SET",         "CBOX_GLB_SET", "BBOX_CTL",
 154        "BBOX_ERR_STS",         "BBOX_ERR_IDX", "CBOX_DDP_ERR_STS",
 155        "BBOX_DAT_RMP",         NULL
 156};
 157
 158static char *el_ev7_zbox_subpacket_annotation[] = {
 159        "Subpacket Header",     
 160        "ZBOX(0): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
 161        "ZBOX(0): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
 162        "ZBOX(0): DIFT_TIMEOUT      / DRAM_ERR_ADR",
 163        "ZBOX(0): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
 164        "ZBOX(0): reserved          / DIFT_ERR_STATUS",
 165        "ZBOX(1): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
 166        "ZBOX(1): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
 167        "ZBOX(1): DIFT_TIMEOUT      / DRAM_ERR_ADR",
 168        "ZBOX(1): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
 169        "ZBOX(1): reserved          / DIFT_ERR_STATUS",
 170        "CBOX_CTL",             "CBOX_STP_CTL",
 171        "ZBOX(0)_ERROR_PA",     "ZBOX(1)_ERROR_PA",
 172        "ZBOX(0)_ORED_SYNDROME","ZBOX(1)_ORED_SYNDROME",
 173        NULL
 174};
 175
 176static char *el_ev7_rbox_subpacket_annotation[] = {
 177        "Subpacket Header",     "RBOX_CFG",     "RBOX_N_CFG",
 178        "RBOX_S_CFG",           "RBOX_E_CFG",   "RBOX_W_CFG",
 179        "RBOX_N_ERR",           "RBOX_S_ERR",   "RBOX_E_ERR",
 180        "RBOX_W_ERR",           "RBOX_IO_CFG",  "RBOX_IO_ERR",
 181        "RBOX_L_ERR",           "RBOX_WHOAMI",  "RBOX_IMASL",
 182        "RBOX_INTQ",            "RBOX_INT",     NULL
 183};
 184
 185static char *el_ev7_io_subpacket_annotation[] = {
 186        "Subpacket Header",     "IO_ASIC_REV",  "IO_SYS_REV",
 187        "IO7_UPH",              "HPI_CTL",      "CRD_CTL",
 188        "HEI_CTL",              "PO7_ERROR_SUM","PO7_UNCRR_SYM",
 189        "PO7_CRRCT_SYM",        "PO7_UGBGE_SYM","PO7_ERR_PKT0",
 190        "PO7_ERR_PKT1",         "reserved",     "reserved",
 191        "PO0_ERR_SUM",          "PO0_TLB_ERR",  "PO0_SPL_COMPLT",
 192        "PO0_TRANS_SUM",        "PO0_FIRST_ERR","PO0_MULT_ERR",
 193        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 194        "DM CSR PH",            "reserved",
 195        "PO1_ERR_SUM",          "PO1_TLB_ERR",  "PO1_SPL_COMPLT",
 196        "PO1_TRANS_SUM",        "PO1_FIRST_ERR","PO1_MULT_ERR",
 197        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 198        "DM CSR PH",            "reserved",
 199        "PO2_ERR_SUM",          "PO2_TLB_ERR",  "PO2_SPL_COMPLT",
 200        "PO2_TRANS_SUM",        "PO2_FIRST_ERR","PO2_MULT_ERR",
 201        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 202        "DM CSR PH",            "reserved",
 203        "PO3_ERR_SUM",          "PO3_TLB_ERR",  "PO3_SPL_COMPLT",
 204        "PO3_TRANS_SUM",        "PO3_FIRST_ERR","PO3_MULT_ERR",
 205        "DM CSR PH",            "DM CSR PH",    "DM CSR PH",
 206        "DM CSR PH",            "reserved",     
 207        NULL
 208};
 209        
 210static struct el_subpacket_annotation el_ev7_pal_annotations[] = {
 211        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 212                             EL_TYPE__PAL__EV7_PROCESSOR,
 213                             1,
 214                             "EV7 Processor Subpacket",
 215                             el_ev7_processor_subpacket_annotation),
 216        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 217                             EL_TYPE__PAL__EV7_ZBOX,
 218                             1,
 219                             "EV7 ZBOX Subpacket",
 220                             el_ev7_zbox_subpacket_annotation),
 221        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 222                             EL_TYPE__PAL__EV7_RBOX,
 223                             1,
 224                             "EV7 RBOX Subpacket",
 225                             el_ev7_rbox_subpacket_annotation),
 226        SUBPACKET_ANNOTATION(EL_CLASS__PAL,
 227                             EL_TYPE__PAL__EV7_IO,
 228                             1,
 229                             "EV7 IO Subpacket",
 230                             el_ev7_io_subpacket_annotation)
 231};
 232
 233static struct el_subpacket *
 234ev7_process_pal_subpacket(struct el_subpacket *header)
 235{
 236        struct ev7_pal_subpacket *packet;
 237
 238        if (header->class != EL_CLASS__PAL) {
 239                printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
 240                       err_print_prefix,
 241                       header->class, header->type);
 242                return NULL;
 243        }
 244
 245        packet = (struct ev7_pal_subpacket *)header->by_type.raw.data_start;
 246
 247        switch(header->type) {
 248        case EL_TYPE__PAL__LOGOUT_FRAME:
 249                printk("%s*** MCHK occurred on LPID %ld (RBOX %lx)\n",
 250                       err_print_prefix,
 251                       packet->by_type.logout.whami, 
 252                       packet->by_type.logout.rbox_whami);
 253                el_print_timestamp(&packet->by_type.logout.timestamp);
 254                printk("%s  EXC_ADDR: %016lx\n"
 255                         "  HALT_CODE: %lx\n", 
 256                       err_print_prefix,
 257                       packet->by_type.logout.exc_addr,
 258                       packet->by_type.logout.halt_code);
 259                el_process_subpackets(header,
 260                                      packet->by_type.logout.subpacket_count);
 261                break;
 262        default:
 263                printk("%s  ** PAL TYPE %d SUBPACKET\n", 
 264                       err_print_prefix,
 265                       header->type);
 266                el_annotate_subpacket(header);
 267                break;
 268        }
 269        
 270        return (struct el_subpacket *)((unsigned long)header + header->length);
 271}
 272
 273struct el_subpacket_handler ev7_pal_subpacket_handler =
 274        SUBPACKET_HANDLER_INIT(EL_CLASS__PAL, ev7_process_pal_subpacket);
 275
 276void __init
 277ev7_register_error_handlers(void)
 278{
 279        int i;
 280
 281        for (i = 0; i < ARRAY_SIZE(el_ev7_pal_annotations); i++)
 282                cdl_register_subpacket_annotation(&el_ev7_pal_annotations[i]);
 283
 284        cdl_register_subpacket_handler(&ev7_pal_subpacket_handler);
 285}
 286
 287
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.