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Sourcecode: linux-fsl-imx51 version File versions  Download package

err_ev7.c

/*
 *    linux/arch/alpha/kernel/err_ev7.c
 *
 *    Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
 *
 *    Error handling code supporting Alpha systems
 */

#include <linux/init.h>
#include <linux/sched.h>

#include <asm/io.h>
#include <asm/hwrpb.h>
#include <asm/smp.h>
#include <asm/err_common.h>
#include <asm/err_ev7.h>

#include "err_impl.h"
#include "proto.h"

struct ev7_lf_subpackets *
ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr,
                            struct ev7_lf_subpackets *lf_subpackets)
{
      struct el_subpacket *subpacket;
      int i;

      /*
       * A Marvel machine check frame is always packaged in an
       * el_subpacket of class HEADER, type LOGOUT_FRAME.
       */
      if (el_ptr->class != EL_CLASS__HEADER || 
          el_ptr->type != EL_TYPE__HEADER__LOGOUT_FRAME)
            return NULL;

      /*
       * It is a logout frame header. Look at the one subpacket.
       */
      el_ptr = (struct el_subpacket *)
            ((unsigned long)el_ptr + el_ptr->length);

      /*
       * It has to be class PAL, type LOGOUT_FRAME.
       */
      if (el_ptr->class != EL_CLASS__PAL ||
          el_ptr->type != EL_TYPE__PAL__LOGOUT_FRAME)
            return NULL;

      lf_subpackets->logout = (struct ev7_pal_logout_subpacket *)
            el_ptr->by_type.raw.data_start;

      /*
       * Process the subpackets.
       */
      subpacket = (struct el_subpacket *)
            ((unsigned long)el_ptr + el_ptr->length);
      for (i = 0;
           subpacket && i < lf_subpackets->logout->subpacket_count;
           subpacket = (struct el_subpacket *)
                 ((unsigned long)subpacket + subpacket->length), i++) {
            /*
             * All subpackets should be class PAL.
             */
            if (subpacket->class != EL_CLASS__PAL) {
                  printk("%s**UNEXPECTED SUBPACKET CLASS %d "
                         "IN LOGOUT FRAME (packet %d\n",
                         err_print_prefix, subpacket->class, i);
                  return NULL;
            }

            /*
             * Remember the subpacket.
             */
            switch(subpacket->type) {
            case EL_TYPE__PAL__EV7_PROCESSOR:
                  lf_subpackets->ev7 =
                        (struct ev7_pal_processor_subpacket *)
                        subpacket->by_type.raw.data_start;
                  break;

            case EL_TYPE__PAL__EV7_RBOX:
                  lf_subpackets->rbox = (struct ev7_pal_rbox_subpacket *)
                        subpacket->by_type.raw.data_start;
                  break;

            case EL_TYPE__PAL__EV7_ZBOX:
                  lf_subpackets->zbox = (struct ev7_pal_zbox_subpacket *)
                        subpacket->by_type.raw.data_start;
                  break;

            case EL_TYPE__PAL__EV7_IO:
                  lf_subpackets->io = (struct ev7_pal_io_subpacket *)
                        subpacket->by_type.raw.data_start;
                  break;

            case EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE:
            case EL_TYPE__PAL__ENV__AIRMOVER_FAN:
            case EL_TYPE__PAL__ENV__VOLTAGE:
            case EL_TYPE__PAL__ENV__INTRUSION:
            case EL_TYPE__PAL__ENV__POWER_SUPPLY:
            case EL_TYPE__PAL__ENV__LAN:
            case EL_TYPE__PAL__ENV__HOT_PLUG:
                  lf_subpackets->env[ev7_lf_env_index(subpacket->type)] =
                        (struct ev7_pal_environmental_subpacket *)
                        subpacket->by_type.raw.data_start;
                  break;
                        
            default:
                  /*
                   * Don't know what kind of frame this is.
                   */
                  return NULL;
            }
      }

      return lf_subpackets;
}

void
ev7_machine_check(unsigned long vector, unsigned long la_ptr)
{
      struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr;
      char *saved_err_prefix = err_print_prefix;

      /*
       * Sync the processor
       */
      mb();
      draina();

      err_print_prefix = KERN_CRIT;
      printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d\n",
             err_print_prefix, 
             (vector == SCB_Q_PROCERR) ? "Correctable" : "Uncorrectable",
             (unsigned int)vector, (int)smp_processor_id());
      el_process_subpacket(el_ptr);
      err_print_prefix = saved_err_prefix;

      /* 
       * Release the logout frame 
       */
      wrmces(0x7);
      mb();
}

static char *el_ev7_processor_subpacket_annotation[] = {
      "Subpacket Header",     "I_STAT",   "DC_STAT",
      "C_ADDR",         "C_SYNDROME_1",   "C_SYNDROME_0",
      "C_STAT",         "C_STS",    "MM_STAT",
      "EXC_ADDR",       "IER_CM",   "ISUM",
      "PAL_BASE",       "I_CTL",    "PROCESS_CONTEXT",
      "CBOX_CTL",       "CBOX_STP_CTL",   "CBOX_ACC_CTL",
      "CBOX_LCL_SET",         "CBOX_GLB_SET",   "BBOX_CTL",
      "BBOX_ERR_STS",         "BBOX_ERR_IDX",   "CBOX_DDP_ERR_STS",
      "BBOX_DAT_RMP",         NULL
};

static char *el_ev7_zbox_subpacket_annotation[] = {
      "Subpacket Header",     
      "ZBOX(0): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
      "ZBOX(0): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
      "ZBOX(0): DIFT_TIMEOUT      / DRAM_ERR_ADR",
      "ZBOX(0): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
      "ZBOX(0): reserved          / DIFT_ERR_STATUS",
      "ZBOX(1): DRAM_ERR_STATUS_2 / DRAM_ERR_STATUS_1",
      "ZBOX(1): DRAM_ERROR_CTL    / DRAM_ERR_STATUS_3",
      "ZBOX(1): DIFT_TIMEOUT      / DRAM_ERR_ADR",
      "ZBOX(1): FRC_ERR_ADR       / DRAM_MAPPER_CTL",
      "ZBOX(1): reserved          / DIFT_ERR_STATUS",
      "CBOX_CTL",       "CBOX_STP_CTL",
      "ZBOX(0)_ERROR_PA",     "ZBOX(1)_ERROR_PA",
      "ZBOX(0)_ORED_SYNDROME","ZBOX(1)_ORED_SYNDROME",
      NULL
};

static char *el_ev7_rbox_subpacket_annotation[] = {
      "Subpacket Header",     "RBOX_CFG", "RBOX_N_CFG",
      "RBOX_S_CFG",           "RBOX_E_CFG",     "RBOX_W_CFG",
      "RBOX_N_ERR",           "RBOX_S_ERR",     "RBOX_E_ERR",
      "RBOX_W_ERR",           "RBOX_IO_CFG",    "RBOX_IO_ERR",
      "RBOX_L_ERR",           "RBOX_WHOAMI",    "RBOX_IMASL",
      "RBOX_INTQ",            "RBOX_INT", NULL
};

static char *el_ev7_io_subpacket_annotation[] = {
      "Subpacket Header",     "IO_ASIC_REV",    "IO_SYS_REV",
      "IO7_UPH",        "HPI_CTL",  "CRD_CTL",
      "HEI_CTL",        "PO7_ERROR_SUM","PO7_UNCRR_SYM",
      "PO7_CRRCT_SYM",  "PO7_UGBGE_SYM","PO7_ERR_PKT0",
      "PO7_ERR_PKT1",         "reserved", "reserved",
      "PO0_ERR_SUM",          "PO0_TLB_ERR",    "PO0_SPL_COMPLT",
      "PO0_TRANS_SUM",  "PO0_FIRST_ERR","PO0_MULT_ERR",
      "DM CSR PH",            "DM CSR PH",      "DM CSR PH",
      "DM CSR PH",            "reserved",
      "PO1_ERR_SUM",          "PO1_TLB_ERR",    "PO1_SPL_COMPLT",
      "PO1_TRANS_SUM",  "PO1_FIRST_ERR","PO1_MULT_ERR",
      "DM CSR PH",            "DM CSR PH",      "DM CSR PH",
      "DM CSR PH",            "reserved",
      "PO2_ERR_SUM",          "PO2_TLB_ERR",    "PO2_SPL_COMPLT",
      "PO2_TRANS_SUM",  "PO2_FIRST_ERR","PO2_MULT_ERR",
      "DM CSR PH",            "DM CSR PH",      "DM CSR PH",
      "DM CSR PH",            "reserved",
      "PO3_ERR_SUM",          "PO3_TLB_ERR",    "PO3_SPL_COMPLT",
      "PO3_TRANS_SUM",  "PO3_FIRST_ERR","PO3_MULT_ERR",
      "DM CSR PH",            "DM CSR PH",      "DM CSR PH",
      "DM CSR PH",            "reserved", 
      NULL
};
      
static struct el_subpacket_annotation el_ev7_pal_annotations[] = {
      SUBPACKET_ANNOTATION(EL_CLASS__PAL,
                       EL_TYPE__PAL__EV7_PROCESSOR,
                       1,
                       "EV7 Processor Subpacket",
                       el_ev7_processor_subpacket_annotation),
      SUBPACKET_ANNOTATION(EL_CLASS__PAL,
                       EL_TYPE__PAL__EV7_ZBOX,
                       1,
                       "EV7 ZBOX Subpacket",
                       el_ev7_zbox_subpacket_annotation),
      SUBPACKET_ANNOTATION(EL_CLASS__PAL,
                       EL_TYPE__PAL__EV7_RBOX,
                       1,
                       "EV7 RBOX Subpacket",
                       el_ev7_rbox_subpacket_annotation),
      SUBPACKET_ANNOTATION(EL_CLASS__PAL,
                       EL_TYPE__PAL__EV7_IO,
                       1,
                       "EV7 IO Subpacket",
                       el_ev7_io_subpacket_annotation)
};

static struct el_subpacket *
ev7_process_pal_subpacket(struct el_subpacket *header)
{
      struct ev7_pal_subpacket *packet;

      if (header->class != EL_CLASS__PAL) {
            printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
                   err_print_prefix,
                   header->class, header->type);
            return NULL;
      }

      packet = (struct ev7_pal_subpacket *)header->by_type.raw.data_start;

      switch(header->type) {
      case EL_TYPE__PAL__LOGOUT_FRAME:
            printk("%s*** MCHK occurred on LPID %lld (RBOX %llx)\n",
                   err_print_prefix,
                   packet->by_type.logout.whami, 
                   packet->by_type.logout.rbox_whami);
            el_print_timestamp(&packet->by_type.logout.timestamp);
            printk("%s  EXC_ADDR: %016llx\n"
                     "  HALT_CODE: %llx\n",
                   err_print_prefix,
                   packet->by_type.logout.exc_addr,
                   packet->by_type.logout.halt_code);
            el_process_subpackets(header,
                                      packet->by_type.logout.subpacket_count);
            break;
      default:
            printk("%s  ** PAL TYPE %d SUBPACKET\n", 
                   err_print_prefix,
                   header->type);
            el_annotate_subpacket(header);
            break;
      }
      
      return (struct el_subpacket *)((unsigned long)header + header->length);
}

struct el_subpacket_handler ev7_pal_subpacket_handler =
      SUBPACKET_HANDLER_INIT(EL_CLASS__PAL, ev7_process_pal_subpacket);

void __init
ev7_register_error_handlers(void)
{
      int i;

      for (i = 0; i < ARRAY_SIZE(el_ev7_pal_annotations); i++)
            cdl_register_subpacket_annotation(&el_ev7_pal_annotations[i]);

      cdl_register_subpacket_handler(&ev7_pal_subpacket_handler);
}


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