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