diff options
Diffstat (limited to 'arch/alpha/kernel/err_ev7.c')
| -rw-r--r-- | arch/alpha/kernel/err_ev7.c | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c new file mode 100644 index 0000000000..565de1acf1 --- /dev/null +++ b/arch/alpha/kernel/err_ev7.c @@ -0,0 +1,287 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * 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); +} + |