| // SPDX-License-Identifier: GPL-2.0 | |
| /* | |
| * linux/arch/alpha/kernel/err_marvel.c | |
| * | |
| * Copyright (C) 2001 Jeff Wiedemeier (Compaq Computer Corporation) | |
| * | |
| */ | |
| #include <linux/init.h> | |
| #include <linux/pci.h> | |
| #include <linux/sched.h> | |
| #include <asm/io.h> | |
| #include <asm/console.h> | |
| #include <asm/core_marvel.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" | |
| static void | |
| marvel_print_680_frame(struct ev7_lf_subpackets *lf_subpackets) | |
| { | |
| #ifdef CONFIG_VERBOSE_MCHECK | |
| struct ev7_pal_environmental_subpacket *env; | |
| struct { int type; char *name; } ev_packets[] = { | |
| { EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE, | |
| "Ambient Temperature" }, | |
| { EL_TYPE__PAL__ENV__AIRMOVER_FAN, | |
| "AirMover / Fan" }, | |
| { EL_TYPE__PAL__ENV__VOLTAGE, | |
| "Voltage" }, | |
| { EL_TYPE__PAL__ENV__INTRUSION, | |
| "Intrusion" }, | |
| { EL_TYPE__PAL__ENV__POWER_SUPPLY, | |
| "Power Supply" }, | |
| { EL_TYPE__PAL__ENV__LAN, | |
| "LAN" }, | |
| { EL_TYPE__PAL__ENV__HOT_PLUG, | |
| "Hot Plug" }, | |
| { 0, NULL } | |
| }; | |
| int i; | |
| for (i = 0; ev_packets[i].type != 0; i++) { | |
| env = lf_subpackets->env[ev7_lf_env_index(ev_packets[i].type)]; | |
| if (!env) | |
| continue; | |
| printk("%s**%s event (cabinet %d, drawer %d)\n", | |
| err_print_prefix, | |
| ev_packets[i].name, | |
| env->cabinet, | |
| env->drawer); | |
| printk("%s Module Type: 0x%x - Unit ID 0x%x - " | |
| "Condition 0x%x\n", | |
| err_print_prefix, | |
| env->module_type, | |
| env->unit_id, | |
| env->condition); | |
| } | |
| #endif /* CONFIG_VERBOSE_MCHECK */ | |
| } | |
| static int | |
| marvel_process_680_frame(struct ev7_lf_subpackets *lf_subpackets, int print) | |
| { | |
| int status = MCHK_DISPOSITION_UNKNOWN_ERROR; | |
| int i; | |
| for (i = ev7_lf_env_index(EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE); | |
| i <= ev7_lf_env_index(EL_TYPE__PAL__ENV__HOT_PLUG); | |
| i++) { | |
| if (lf_subpackets->env[i]) | |
| status = MCHK_DISPOSITION_REPORT; | |
| } | |
| if (print) | |
| marvel_print_680_frame(lf_subpackets); | |
| return status; | |
| } | |
| #ifdef CONFIG_VERBOSE_MCHECK | |
| static void | |
| marvel_print_err_cyc(u64 err_cyc) | |
| { | |
| static char *packet_desc[] = { | |
| "No Error", | |
| "UNKNOWN", | |
| "1 cycle (1 or 2 flit packet)", | |
| "2 cycles (3 flit packet)", | |
| "9 cycles (18 flit packet)", | |
| "10 cycles (19 flit packet)", | |
| "UNKNOWN", | |
| "UNKNOWN", | |
| "UNKNOWN" | |
| }; | |
| #define IO7__ERR_CYC__ODD_FLT (1UL << 0) | |
| #define IO7__ERR_CYC__EVN_FLT (1UL << 1) | |
| #define IO7__ERR_CYC__PACKET__S (6) | |
| #define IO7__ERR_CYC__PACKET__M (0x7) | |
| #define IO7__ERR_CYC__LOC (1UL << 5) | |
| #define IO7__ERR_CYC__CYCLE__S (2) | |
| #define IO7__ERR_CYC__CYCLE__M (0x7) | |
| printk("%s Packet In Error: %s\n" | |
| "%s Error in %s, cycle %lld%s%s\n", | |
| err_print_prefix, | |
| packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)], | |
| err_print_prefix, | |
| (err_cyc & IO7__ERR_CYC__LOC) ? "DATA" : "HEADER", | |
| EXTRACT(err_cyc, IO7__ERR_CYC__CYCLE), | |
| (err_cyc & IO7__ERR_CYC__ODD_FLT) ? " [ODD Flit]": "", | |
| (err_cyc & IO7__ERR_CYC__EVN_FLT) ? " [Even Flit]": ""); | |
| } | |
| static void | |
| marvel_print_po7_crrct_sym(u64 crrct_sym) | |
| { | |
| #define IO7__PO7_CRRCT_SYM__SYN__S (0) | |
| #define IO7__PO7_CRRCT_SYM__SYN__M (0x7f) | |
| #define IO7__PO7_CRRCT_SYM__ERR_CYC__S (7) /* ERR_CYC + ODD_FLT + EVN_FLT */ | |
| #define IO7__PO7_CRRCT_SYM__ERR_CYC__M (0x1ff) | |
| printk("%s Correctable Error Symptoms:\n" | |
| "%s Syndrome: 0x%llx\n", | |
| err_print_prefix, | |
| err_print_prefix, EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__SYN)); | |
| marvel_print_err_cyc(EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__ERR_CYC)); | |
| } | |
| static void | |
| marvel_print_po7_uncrr_sym(u64 uncrr_sym, u64 valid_mask) | |
| { | |
| static char *clk_names[] = { "_h[0]", "_h[1]", "_n[0]", "_n[1]" }; | |
| static char *clk_decode[] = { | |
| "No Error", | |
| "One extra rising edge", | |
| "Two extra rising edges", | |
| "Lost one clock" | |
| }; | |
| static char *port_names[] = { "Port 0", "Port 1", | |
| "Port 2", "Port 3", | |
| "Unknown Port", "Unknown Port", | |
| "Unknown Port", "Port 7" }; | |
| int scratch, i; | |
| #define IO7__PO7_UNCRR_SYM__SYN__S (0) | |
| #define IO7__PO7_UNCRR_SYM__SYN__M (0x7f) | |
| #define IO7__PO7_UNCRR_SYM__ERR_CYC__S (7) /* ERR_CYC + ODD_FLT... */ | |
| #define IO7__PO7_UNCRR_SYM__ERR_CYC__M (0x1ff) /* ... + EVN_FLT */ | |
| #define IO7__PO7_UNCRR_SYM__CLK__S (16) | |
| #define IO7__PO7_UNCRR_SYM__CLK__M (0xff) | |
| #define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ (1UL << 24) | |
| #define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO (1UL << 25) | |
| #define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO (1UL << 26) | |
| #define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK (1UL << 27) | |
| #define IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK (1UL << 28) | |
| #define IO7__PO7_UNCRR_SYM__OVF__READIO (1UL << 29) | |
| #define IO7__PO7_UNCRR_SYM__OVF__WRITEIO (1UL << 30) | |
| #define IO7__PO7_UNCRR_SYM__OVF__FWD (1UL << 31) | |
| #define IO7__PO7_UNCRR_SYM__VICTIM_SP__S (32) | |
| #define IO7__PO7_UNCRR_SYM__VICTIM_SP__M (0xff) | |
| #define IO7__PO7_UNCRR_SYM__DETECT_SP__S (40) | |
| #define IO7__PO7_UNCRR_SYM__DETECT_SP__M (0xff) | |
| #define IO7__PO7_UNCRR_SYM__STRV_VTR__S (48) | |
| #define IO7__PO7_UNCRR_SYM__STRV_VTR__M (0x3ff) | |
| #define IO7__STRV_VTR__LSI__INTX__S (0) | |
| #define IO7__STRV_VTR__LSI__INTX__M (0x3) | |
| #define IO7__STRV_VTR__LSI__SLOT__S (2) | |
| #define IO7__STRV_VTR__LSI__SLOT__M (0x7) | |
| #define IO7__STRV_VTR__LSI__BUS__S (5) | |
| #define IO7__STRV_VTR__LSI__BUS__M (0x3) | |
| #define IO7__STRV_VTR__MSI__INTNUM__S (0) | |
| #define IO7__STRV_VTR__MSI__INTNUM__M (0x1ff) | |
| #define IO7__STRV_VTR__IS_MSI (1UL << 9) | |
| printk("%s Uncorrectable Error Symptoms:\n", err_print_prefix); | |
| uncrr_sym &= valid_mask; | |
| if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__SYN)) | |
| printk("%s Syndrome: 0x%llx\n", | |
| err_print_prefix, | |
| EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__SYN)); | |
| if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__ERR_CYC)) | |
| marvel_print_err_cyc(EXTRACT(uncrr_sym, | |
| IO7__PO7_UNCRR_SYM__ERR_CYC)); | |
| scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__CLK); | |
| for (i = 0; i < 4; i++, scratch >>= 2) { | |
| if (scratch & 0x3) | |
| printk("%s Clock %s: %s\n", | |
| err_print_prefix, | |
| clk_names[i], clk_decode[scratch & 0x3]); | |
| } | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__REQ) | |
| printk("%s REQ Credit Timeout or Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__RIO) | |
| printk("%s RIO Credit Timeout or Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__WIO) | |
| printk("%s WIO Credit Timeout or Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__BLK) | |
| printk("%s BLK Credit Timeout or Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__CDT_OVF_TO__NBK) | |
| printk("%s NBK Credit Timeout or Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__READIO) | |
| printk("%s Read I/O Buffer Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__WRITEIO) | |
| printk("%s Write I/O Buffer Overflow\n", | |
| err_print_prefix); | |
| if (uncrr_sym & IO7__PO7_UNCRR_SYM__OVF__FWD) | |
| printk("%s FWD Buffer Overflow\n", | |
| err_print_prefix); | |
| if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__VICTIM_SP))) { | |
| int lost = scratch & (1UL << 4); | |
| scratch &= ~lost; | |
| for (i = 0; i < 8; i++, scratch >>= 1) { | |
| if (!(scratch & 1)) | |
| continue; | |
| printk("%s Error Response sent to %s", | |
| err_print_prefix, port_names[i]); | |
| } | |
| if (lost) | |
| printk("%s Lost Error sent somewhere else\n", | |
| err_print_prefix); | |
| } | |
| if ((scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__DETECT_SP))) { | |
| for (i = 0; i < 8; i++, scratch >>= 1) { | |
| if (!(scratch & 1)) | |
| continue; | |
| printk("%s Error Reported by %s", | |
| err_print_prefix, port_names[i]); | |
| } | |
| } | |
| if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__STRV_VTR)) { | |
| char starvation_message[80]; | |
| scratch = EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__STRV_VTR); | |
| if (scratch & IO7__STRV_VTR__IS_MSI) | |
| sprintf(starvation_message, | |
| "MSI Interrupt 0x%x", | |
| EXTRACT(scratch, IO7__STRV_VTR__MSI__INTNUM)); | |
| else | |
| sprintf(starvation_message, | |
| "LSI INT%c for Bus:Slot (%d:%d)\n", | |
| 'A' + EXTRACT(scratch, | |
| IO7__STRV_VTR__LSI__INTX), | |
| EXTRACT(scratch, IO7__STRV_VTR__LSI__BUS), | |
| EXTRACT(scratch, IO7__STRV_VTR__LSI__SLOT)); | |
| printk("%s Starvation Int Trigger By: %s\n", | |
| err_print_prefix, starvation_message); | |
| } | |
| } | |
| static void | |
| marvel_print_po7_ugbge_sym(u64 ugbge_sym) | |
| { | |
| char opcode_str[10]; | |
| #define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__S (6) | |
| #define IO7__PO7_UGBGE_SYM__UPH_PKT_OFF__M (0xfffffffful) | |
| #define IO7__PO7_UGBGE_SYM__UPH_OPCODE__S (40) | |
| #define IO7__PO7_UGBGE_SYM__UPH_OPCODE__M (0xff) | |
| #define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__S (48) | |
| #define IO7__PO7_UGBGE_SYM__UPH_SRC_PORT__M (0xf) | |
| #define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__S (52) | |
| #define IO7__PO7_UGBGE_SYM__UPH_DEST_PID__M (0x7ff) | |
| #define IO7__PO7_UGBGE_SYM__VALID (1UL << 63) | |
| if (!(ugbge_sym & IO7__PO7_UGBGE_SYM__VALID)) | |
| return; | |
| switch(EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) { | |
| case 0x51: | |
| sprintf(opcode_str, "Wr32"); | |
| break; | |
| case 0x50: | |
| sprintf(opcode_str, "WrQW"); | |
| break; | |
| case 0x54: | |
| sprintf(opcode_str, "WrIPR"); | |
| break; | |
| case 0xD8: | |
| sprintf(opcode_str, "Victim"); | |
| break; | |
| case 0xC5: | |
| sprintf(opcode_str, "BlkIO"); | |
| break; | |
| default: | |
| sprintf(opcode_str, "0x%llx\n", | |
| EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)); | |
| break; | |
| } | |
| printk("%s Up Hose Garbage Symptom:\n" | |
| "%s Source Port: %lld - Dest PID: %lld - OpCode: %s\n", | |
| err_print_prefix, | |
| err_print_prefix, | |
| EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT), | |
| EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_DEST_PID), | |
| opcode_str); | |
| if (0xC5 != EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) | |
| printk("%s Packet Offset 0x%08llx\n", | |
| err_print_prefix, | |
| EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_PKT_OFF)); | |
| } | |
| static void | |
| marvel_print_po7_err_sum(struct ev7_pal_io_subpacket *io) | |
| { | |
| u64 uncrr_sym_valid = 0; | |
| #define IO7__PO7_ERRSUM__CR_SBE (1UL << 32) | |
| #define IO7__PO7_ERRSUM__CR_SBE2 (1UL << 33) | |
| #define IO7__PO7_ERRSUM__CR_PIO_WBYTE (1UL << 34) | |
| #define IO7__PO7_ERRSUM__CR_CSR_NXM (1UL << 35) | |
| #define IO7__PO7_ERRSUM__CR_RPID_ACV (1UL << 36) | |
| #define IO7__PO7_ERRSUM__CR_RSP_NXM (1UL << 37) | |
| #define IO7__PO7_ERRSUM__CR_ERR_RESP (1UL << 38) | |
| #define IO7__PO7_ERRSUM__CR_CLK_DERR (1UL << 39) | |
| #define IO7__PO7_ERRSUM__CR_DAT_DBE (1UL << 40) | |
| #define IO7__PO7_ERRSUM__CR_DAT_GRBG (1UL << 41) | |
| #define IO7__PO7_ERRSUM__MAF_TO (1UL << 42) | |
| #define IO7__PO7_ERRSUM__UGBGE (1UL << 43) | |
| #define IO7__PO7_ERRSUM__UN_MAF_LOST (1UL << 44) | |
| #define IO7__PO7_ERRSUM__UN_PKT_OVF (1UL << 45) | |
| #define IO7__PO7_ERRSUM__UN_CDT_OVF (1UL << 46) | |
| #define IO7__PO7_ERRSUM__UN_DEALLOC (1UL << 47) | |
| #define IO7__PO7_ERRSUM__BH_CDT_TO (1UL << 51) | |
| #define IO7__PO7_ERRSUM__BH_CLK_HDR (1UL << 52) | |
| #define IO7__PO7_ERRSUM__BH_DBE_HDR (1UL << 53) | |
| #define IO7__PO7_ERRSUM__BH_GBG_HDR (1UL << 54) | |
| #define IO7__PO7_ERRSUM__BH_BAD_CMD (1UL << 55) | |
| #define IO7__PO7_ERRSUM__HLT_INT (1UL << 56) | |
| #define IO7__PO7_ERRSUM__HP_INT (1UL << 57) | |
| #define IO7__PO7_ERRSUM__CRD_INT (1UL << 58) | |
| #define IO7__PO7_ERRSUM__STV_INT (1UL << 59) | |
| #define IO7__PO7_ERRSUM__HRD_INT (1UL << 60) | |
| #define IO7__PO7_ERRSUM__BH_SUM (1UL << 61) | |
| #define IO7__PO7_ERRSUM__ERR_LST (1UL << 62) | |
| #define IO7__PO7_ERRSUM__ERR_VALID (1UL << 63) | |
| #define IO7__PO7_ERRSUM__ERR_MASK (IO7__PO7_ERRSUM__ERR_VALID | \ | |
| IO7__PO7_ERRSUM__CR_SBE) | |
| /* | |
| * Single bit errors aren't covered by ERR_VALID. | |
| */ | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE) { | |
| printk("%s %sSingle Bit Error(s) detected/corrected\n", | |
| err_print_prefix, | |
| (io->po7_error_sum & IO7__PO7_ERRSUM__CR_SBE2) | |
| ? "Multiple " : ""); | |
| marvel_print_po7_crrct_sym(io->po7_crrct_sym); | |
| } | |
| /* | |
| * Neither are the interrupt status bits | |
| */ | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__HLT_INT) | |
| printk("%s Halt Interrupt posted", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__HP_INT) { | |
| printk("%s Hot Plug Event Interrupt posted", | |
| err_print_prefix); | |
| uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP); | |
| } | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CRD_INT) | |
| printk("%s Correctable Error Interrupt posted", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__STV_INT) { | |
| printk("%s Starvation Interrupt posted", err_print_prefix); | |
| uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__STRV_VTR); | |
| } | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__HRD_INT) { | |
| printk("%s Hard Error Interrupt posted", err_print_prefix); | |
| uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__DETECT_SP); | |
| } | |
| /* | |
| * Everything else is valid only with ERR_VALID, so skip to the end | |
| * (uncrr_sym check) unless ERR_VALID is set. | |
| */ | |
| if (!(io->po7_error_sum & IO7__PO7_ERRSUM__ERR_VALID)) | |
| goto check_uncrr_sym; | |
| /* | |
| * Since ERR_VALID is set, VICTIM_SP in uncrr_sym is valid. | |
| * For bits [29:0] to also be valid, the following bits must | |
| * not be set: | |
| * CR_PIO_WBYTE CR_CSR_NXM CR_RSP_NXM | |
| * CR_ERR_RESP MAF_TO | |
| */ | |
| uncrr_sym_valid |= GEN_MASK(IO7__PO7_UNCRR_SYM__VICTIM_SP); | |
| if (!(io->po7_error_sum & (IO7__PO7_ERRSUM__CR_PIO_WBYTE | | |
| IO7__PO7_ERRSUM__CR_CSR_NXM | | |
| IO7__PO7_ERRSUM__CR_RSP_NXM | | |
| IO7__PO7_ERRSUM__CR_ERR_RESP | | |
| IO7__PO7_ERRSUM__MAF_TO))) | |
| uncrr_sym_valid |= 0x3ffffffful; | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_PIO_WBYTE) | |
| printk("%s Write byte into IO7 CSR\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CSR_NXM) | |
| printk("%s PIO to non-existent CSR\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RPID_ACV) | |
| printk("%s Bus Requester PID (Access Violation)\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_RSP_NXM) | |
| printk("%s Received NXM response from EV7\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_ERR_RESP) | |
| printk("%s Received ERROR RESPONSE\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_CLK_DERR) | |
| printk("%s Clock error on data flit\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_DBE) | |
| printk("%s Double Bit Error Data Error Detected\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__CR_DAT_GRBG) | |
| printk("%s Garbage Encoding Detected on the data\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__UGBGE) { | |
| printk("%s Garbage Encoding sent up hose\n", | |
| err_print_prefix); | |
| marvel_print_po7_ugbge_sym(io->po7_ugbge_sym); | |
| } | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_MAF_LOST) | |
| printk("%s Orphan response (unexpected response)\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_PKT_OVF) | |
| printk("%s Down hose packet overflow\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_CDT_OVF) | |
| printk("%s Down hose credit overflow\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__UN_DEALLOC) | |
| printk("%s Unexpected or bad dealloc field\n", | |
| err_print_prefix); | |
| /* | |
| * The black hole events. | |
| */ | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__MAF_TO) | |
| printk("%s BLACK HOLE: Timeout for all responses\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CDT_TO) | |
| printk("%s BLACK HOLE: Credit Timeout\n", err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_CLK_HDR) | |
| printk("%s BLACK HOLE: Clock check on header\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_DBE_HDR) | |
| printk("%s BLACK HOLE: Uncorrectable Error on header\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_GBG_HDR) | |
| printk("%s BLACK HOLE: Garbage on header\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__BH_BAD_CMD) | |
| printk("%s BLACK HOLE: Bad EV7 command\n", | |
| err_print_prefix); | |
| if (io->po7_error_sum & IO7__PO7_ERRSUM__ERR_LST) | |
| printk("%s Lost Error\n", err_print_prefix); | |
| printk("%s Failing Packet:\n" | |
| "%s Cycle 1: %016llx\n" | |
| "%s Cycle 2: %016llx\n", | |
| err_print_prefix, | |
| err_print_prefix, io->po7_err_pkt0, | |
| err_print_prefix, io->po7_err_pkt1); | |
| /* | |
| * If there are any valid bits in UNCRR sym for this err, | |
| * print UNCRR_SYM as well. | |
| */ | |
| check_uncrr_sym: | |
| if (uncrr_sym_valid) | |
| marvel_print_po7_uncrr_sym(io->po7_uncrr_sym, uncrr_sym_valid); | |
| } | |
| static void | |
| marvel_print_pox_tlb_err(u64 tlb_err) | |
| { | |
| static char *tlb_errors[] = { | |
| "No Error", | |
| "North Port Signaled Error fetching TLB entry", | |
| "PTE invalid or UCC or GBG error on this entry", | |
| "Address did not hit any DMA window" | |
| }; | |
| #define IO7__POX_TLBERR__ERR_VALID (1UL << 63) | |
| #define IO7__POX_TLBERR__ERRCODE__S (0) | |
| #define IO7__POX_TLBERR__ERRCODE__M (0x3) | |
| #define IO7__POX_TLBERR__ERR_TLB_PTR__S (3) | |
| #define IO7__POX_TLBERR__ERR_TLB_PTR__M (0x7) | |
| #define IO7__POX_TLBERR__FADDR__S (6) | |
| #define IO7__POX_TLBERR__FADDR__M (0x3fffffffffful) | |
| if (!(tlb_err & IO7__POX_TLBERR__ERR_VALID)) | |
| return; | |
| printk("%s TLB Error on index 0x%llx:\n" | |
| "%s - %s\n" | |
| "%s - Addr: 0x%016llx\n", | |
| err_print_prefix, | |
| EXTRACT(tlb_err, IO7__POX_TLBERR__ERR_TLB_PTR), | |
| err_print_prefix, | |
| tlb_errors[EXTRACT(tlb_err, IO7__POX_TLBERR__ERRCODE)], | |
| err_print_prefix, | |
| EXTRACT(tlb_err, IO7__POX_TLBERR__FADDR) << 6); | |
| } | |
| static void | |
| marvel_print_pox_spl_cmplt(u64 spl_cmplt) | |
| { | |
| char message[80]; | |
| #define IO7__POX_SPLCMPLT__MESSAGE__S (0) | |
| #define IO7__POX_SPLCMPLT__MESSAGE__M (0x0fffffffful) | |
| #define IO7__POX_SPLCMPLT__SOURCE_BUS__S (40) | |
| #define IO7__POX_SPLCMPLT__SOURCE_BUS__M (0xfful) | |
| #define IO7__POX_SPLCMPLT__SOURCE_DEV__S (35) | |
| #define IO7__POX_SPLCMPLT__SOURCE_DEV__M (0x1ful) | |
| #define IO7__POX_SPLCMPLT__SOURCE_FUNC__S (32) | |
| #define IO7__POX_SPLCMPLT__SOURCE_FUNC__M (0x07ul) | |
| #define IO7__POX_SPLCMPLT__MSG_CLASS__S (28) | |
| #define IO7__POX_SPLCMPLT__MSG_CLASS__M (0xf) | |
| #define IO7__POX_SPLCMPLT__MSG_INDEX__S (20) | |
| #define IO7__POX_SPLCMPLT__MSG_INDEX__M (0xff) | |
| #define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__S (20) | |
| #define IO7__POX_SPLCMPLT__MSG_CLASSINDEX__M (0xfff) | |
| #define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__S (12) | |
| #define IO7__POX_SPLCMPLT__REM_LOWER_ADDR__M (0x7f) | |
| #define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__S (0) | |
| #define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M (0xfff) | |
| printk("%s Split Completion Error:\n" | |
| "%s Source (Bus:Dev:Func): %lld:%lld:%lld\n", | |
| err_print_prefix, | |
| err_print_prefix, | |
| EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS), | |
| EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_DEV), | |
| EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_FUNC)); | |
| switch(EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MSG_CLASSINDEX)) { | |
| case 0x000: | |
| sprintf(message, "Normal completion"); | |
| break; | |
| case 0x100: | |
| sprintf(message, "Bridge - Master Abort"); | |
| break; | |
| case 0x101: | |
| sprintf(message, "Bridge - Target Abort"); | |
| break; | |
| case 0x102: | |
| sprintf(message, "Bridge - Uncorrectable Write Data Error"); | |
| break; | |
| case 0x200: | |
| sprintf(message, "Byte Count Out of Range"); | |
| break; | |
| case 0x201: | |
| sprintf(message, "Uncorrectable Split Write Data Error"); | |
| break; | |
| default: | |
| sprintf(message, "%08llx\n", | |
| EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MESSAGE)); | |
| break; | |
| } | |
| printk("%s Message: %s\n", err_print_prefix, message); | |
| } | |
| static void | |
| marvel_print_pox_trans_sum(u64 trans_sum) | |
| { | |
| static const char * const pcix_cmd[] = { | |
| "Interrupt Acknowledge", | |
| "Special Cycle", | |
| "I/O Read", | |
| "I/O Write", | |
| "Reserved", | |
| "Reserved / Device ID Message", | |
| "Memory Read", | |
| "Memory Write", | |
| "Reserved / Alias to Memory Read Block", | |
| "Reserved / Alias to Memory Write Block", | |
| "Configuration Read", | |
| "Configuration Write", | |
| "Memory Read Multiple / Split Completion", | |
| "Dual Address Cycle", | |
| "Memory Read Line / Memory Read Block", | |
| "Memory Write and Invalidate / Memory Write Block" | |
| }; | |
| #define IO7__POX_TRANSUM__PCI_ADDR__S (0) | |
| #define IO7__POX_TRANSUM__PCI_ADDR__M (0x3fffffffffffful) | |
| #define IO7__POX_TRANSUM__DAC (1UL << 50) | |
| #define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__S (52) | |
| #define IO7__POX_TRANSUM__PCIX_MASTER_SLOT__M (0xf) | |
| #define IO7__POX_TRANSUM__PCIX_CMD__S (56) | |
| #define IO7__POX_TRANSUM__PCIX_CMD__M (0xf) | |
| #define IO7__POX_TRANSUM__ERR_VALID (1UL << 63) | |
| if (!(trans_sum & IO7__POX_TRANSUM__ERR_VALID)) | |
| return; | |
| printk("%s Transaction Summary:\n" | |
| "%s Command: 0x%llx - %s\n" | |
| "%s Address: 0x%016llx%s\n" | |
| "%s PCI-X Master Slot: 0x%llx\n", | |
| err_print_prefix, | |
| err_print_prefix, | |
| EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD), | |
| pcix_cmd[EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD)], | |
| err_print_prefix, | |
| EXTRACT(trans_sum, IO7__POX_TRANSUM__PCI_ADDR), | |
| (trans_sum & IO7__POX_TRANSUM__DAC) ? " (DAC)" : "", | |
| err_print_prefix, | |
| EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_MASTER_SLOT)); | |
| } | |
| static void | |
| marvel_print_pox_err(u64 err_sum, struct ev7_pal_io_one_port *port) | |
| { | |
| #define IO7__POX_ERRSUM__AGP_REQQ_OVFL (1UL << 4) | |
| #define IO7__POX_ERRSUM__AGP_SYNC_ERR (1UL << 5) | |
| #define IO7__POX_ERRSUM__MRETRY_TO (1UL << 6) | |
| #define IO7__POX_ERRSUM__PCIX_UX_SPL (1UL << 7) | |
| #define IO7__POX_ERRSUM__PCIX_SPLIT_TO (1UL << 8) | |
| #define IO7__POX_ERRSUM__PCIX_DISCARD_SPL (1UL << 9) | |
| #define IO7__POX_ERRSUM__DMA_RD_TO (1UL << 10) | |
| #define IO7__POX_ERRSUM__CSR_NXM_RD (1UL << 11) | |
| #define IO7__POX_ERRSUM__CSR_NXM_WR (1UL << 12) | |
| #define IO7__POX_ERRSUM__DMA_TO (1UL << 13) | |
| #define IO7__POX_ERRSUM__ALL_MABORTS (1UL << 14) | |
| #define IO7__POX_ERRSUM__MABORT (1UL << 15) | |
| #define IO7__POX_ERRSUM__MABORT_MASK (IO7__POX_ERRSUM__ALL_MABORTS|\ | |
| IO7__POX_ERRSUM__MABORT) | |
| #define IO7__POX_ERRSUM__PT_TABORT (1UL << 16) | |
| #define IO7__POX_ERRSUM__PM_TABORT (1UL << 17) | |
| #define IO7__POX_ERRSUM__TABORT_MASK (IO7__POX_ERRSUM__PT_TABORT | \ | |
| IO7__POX_ERRSUM__PM_TABORT) | |
| #define IO7__POX_ERRSUM__SERR (1UL << 18) | |
| #define IO7__POX_ERRSUM__ADDRERR_STB (1UL << 19) | |
| #define IO7__POX_ERRSUM__DETECTED_SERR (1UL << 20) | |
| #define IO7__POX_ERRSUM__PERR (1UL << 21) | |
| #define IO7__POX_ERRSUM__DATAERR_STB_NIOW (1UL << 22) | |
| #define IO7__POX_ERRSUM__DETECTED_PERR (1UL << 23) | |
| #define IO7__POX_ERRSUM__PM_PERR (1UL << 24) | |
| #define IO7__POX_ERRSUM__PT_SCERROR (1UL << 26) | |
| #define IO7__POX_ERRSUM__HUNG_BUS (1UL << 28) | |
| #define IO7__POX_ERRSUM__UPE_ERROR__S (51) | |
| #define IO7__POX_ERRSUM__UPE_ERROR__M (0xffUL) | |
| #define IO7__POX_ERRSUM__UPE_ERROR GEN_MASK(IO7__POX_ERRSUM__UPE_ERROR) | |
| #define IO7__POX_ERRSUM__TLB_ERR (1UL << 59) | |
| #define IO7__POX_ERRSUM__ERR_VALID (1UL << 63) | |
| #define IO7__POX_ERRSUM__TRANS_SUM__MASK (IO7__POX_ERRSUM__MRETRY_TO | \ | |
| IO7__POX_ERRSUM__PCIX_UX_SPL | \ | |
| IO7__POX_ERRSUM__PCIX_SPLIT_TO | \ | |
| IO7__POX_ERRSUM__DMA_TO | \ | |
| IO7__POX_ERRSUM__MABORT_MASK | \ | |
| IO7__POX_ERRSUM__TABORT_MASK | \ | |
| IO7__POX_ERRSUM__SERR | \ | |
| IO7__POX_ERRSUM__ADDRERR_STB | \ | |
| IO7__POX_ERRSUM__PERR | \ | |
| IO7__POX_ERRSUM__DATAERR_STB_NIOW |\ | |
| IO7__POX_ERRSUM__DETECTED_PERR | \ | |
| IO7__POX_ERRSUM__PM_PERR | \ | |
| IO7__POX_ERRSUM__PT_SCERROR | \ | |
| IO7__POX_ERRSUM__UPE_ERROR) | |
| if (!(err_sum & IO7__POX_ERRSUM__ERR_VALID)) | |
| return; | |
| /* | |
| * First the transaction summary errors | |
| */ | |
| if (err_sum & IO7__POX_ERRSUM__MRETRY_TO) | |
| printk("%s IO7 Master Retry Timeout expired\n", | |
| err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PCIX_UX_SPL) | |
| printk("%s Unexpected Split Completion\n", | |
| err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PCIX_SPLIT_TO) | |
| printk("%s IO7 Split Completion Timeout expired\n", | |
| err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__DMA_TO) | |
| printk("%s Hung bus during DMA transaction\n", | |
| err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__MABORT_MASK) | |
| printk("%s Master Abort\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PT_TABORT) | |
| printk("%s IO7 Asserted Target Abort\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PM_TABORT) | |
| printk("%s IO7 Received Target Abort\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__ADDRERR_STB) { | |
| printk("%s Address or PCI-X Attribute Parity Error\n", | |
| err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__SERR) | |
| printk("%s IO7 Asserted SERR\n", err_print_prefix); | |
| } | |
| if (err_sum & IO7__POX_ERRSUM__PERR) { | |
| if (err_sum & IO7__POX_ERRSUM__DATAERR_STB_NIOW) | |
| printk("%s IO7 Detected Data Parity Error\n", | |
| err_print_prefix); | |
| else | |
| printk("%s Split Completion Response with " | |
| "Parity Error\n", err_print_prefix); | |
| } | |
| if (err_sum & IO7__POX_ERRSUM__DETECTED_PERR) | |
| printk("%s PERR detected\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PM_PERR) | |
| printk("%s PERR while IO7 is master\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PT_SCERROR) { | |
| printk("%s IO7 Received Split Completion Error message\n", | |
| err_print_prefix); | |
| marvel_print_pox_spl_cmplt(port->pox_spl_cmplt); | |
| } | |
| if (err_sum & IO7__POX_ERRSUM__UPE_ERROR) { | |
| unsigned int upe_error = EXTRACT(err_sum, | |
| IO7__POX_ERRSUM__UPE_ERROR); | |
| int i; | |
| static char *upe_errors[] = { | |
| "Parity Error on MSI write data", | |
| "MSI read (MSI window is write only", | |
| "TLB - Invalid WR transaction", | |
| "TLB - Invalid RD transaction", | |
| "DMA - WR error (see north port)", | |
| "DMA - RD error (see north port)", | |
| "PPR - WR error (see north port)", | |
| "PPR - RD error (see north port)" | |
| }; | |
| printk("%s UPE Error:\n", err_print_prefix); | |
| for (i = 0; i < 8; i++) { | |
| if (upe_error & (1 << i)) | |
| printk("%s %s\n", err_print_prefix, | |
| upe_errors[i]); | |
| } | |
| } | |
| /* | |
| * POx_TRANS_SUM, if appropriate. | |
| */ | |
| if (err_sum & IO7__POX_ERRSUM__TRANS_SUM__MASK) | |
| marvel_print_pox_trans_sum(port->pox_trans_sum); | |
| /* | |
| * Then TLB_ERR. | |
| */ | |
| if (err_sum & IO7__POX_ERRSUM__TLB_ERR) { | |
| printk("%s TLB ERROR\n", err_print_prefix); | |
| marvel_print_pox_tlb_err(port->pox_tlb_err); | |
| } | |
| /* | |
| * And the single bit status errors. | |
| */ | |
| if (err_sum & IO7__POX_ERRSUM__AGP_REQQ_OVFL) | |
| printk("%s AGP Request Queue Overflow\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__AGP_SYNC_ERR) | |
| printk("%s AGP Sync Error\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__PCIX_DISCARD_SPL) | |
| printk("%s Discarded split completion\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__DMA_RD_TO) | |
| printk("%s DMA Read Timeout\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__CSR_NXM_RD) | |
| printk("%s CSR NXM READ\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__CSR_NXM_WR) | |
| printk("%s CSR NXM WRITE\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__DETECTED_SERR) | |
| printk("%s SERR detected\n", err_print_prefix); | |
| if (err_sum & IO7__POX_ERRSUM__HUNG_BUS) | |
| printk("%s HUNG BUS detected\n", err_print_prefix); | |
| } | |
| #endif /* CONFIG_VERBOSE_MCHECK */ | |
| static struct ev7_pal_io_subpacket * | |
| marvel_find_io7_with_error(struct ev7_lf_subpackets *lf_subpackets) | |
| { | |
| struct ev7_pal_io_subpacket *io = lf_subpackets->io; | |
| struct io7 *io7; | |
| int i; | |
| /* | |
| * Caller must provide the packet to fill | |
| */ | |
| if (!io) | |
| return NULL; | |
| /* | |
| * Fill the subpacket with the console's standard fill pattern | |
| */ | |
| memset(io, 0x55, sizeof(*io)); | |
| for (io7 = NULL; NULL != (io7 = marvel_next_io7(io7)); ) { | |
| unsigned long err_sum = 0; | |
| err_sum |= io7->csrs->PO7_ERROR_SUM.csr; | |
| for (i = 0; i < IO7_NUM_PORTS; i++) { | |
| if (!io7->ports[i].enabled) | |
| continue; | |
| err_sum |= io7->ports[i].csrs->POx_ERR_SUM.csr; | |
| } | |
| /* | |
| * Is there at least one error? | |
| */ | |
| if (err_sum & (1UL << 63)) | |
| break; | |
| } | |
| /* | |
| * Did we find an IO7 with an error? | |
| */ | |
| if (!io7) | |
| return NULL; | |
| /* | |
| * We have an IO7 with an error. | |
| * | |
| * Fill in the IO subpacket. | |
| */ | |
| io->io_asic_rev = io7->csrs->IO_ASIC_REV.csr; | |
| io->io_sys_rev = io7->csrs->IO_SYS_REV.csr; | |
| io->io7_uph = io7->csrs->IO7_UPH.csr; | |
| io->hpi_ctl = io7->csrs->HPI_CTL.csr; | |
| io->crd_ctl = io7->csrs->CRD_CTL.csr; | |
| io->hei_ctl = io7->csrs->HEI_CTL.csr; | |
| io->po7_error_sum = io7->csrs->PO7_ERROR_SUM.csr; | |
| io->po7_uncrr_sym = io7->csrs->PO7_UNCRR_SYM.csr; | |
| io->po7_crrct_sym = io7->csrs->PO7_CRRCT_SYM.csr; | |
| io->po7_ugbge_sym = io7->csrs->PO7_UGBGE_SYM.csr; | |
| io->po7_err_pkt0 = io7->csrs->PO7_ERR_PKT[0].csr; | |
| io->po7_err_pkt1 = io7->csrs->PO7_ERR_PKT[1].csr; | |
| for (i = 0; i < IO7_NUM_PORTS; i++) { | |
| io7_ioport_csrs *csrs = io7->ports[i].csrs; | |
| if (!io7->ports[i].enabled) | |
| continue; | |
| io->ports[i].pox_err_sum = csrs->POx_ERR_SUM.csr; | |
| io->ports[i].pox_tlb_err = csrs->POx_TLB_ERR.csr; | |
| io->ports[i].pox_spl_cmplt = csrs->POx_SPL_COMPLT.csr; | |
| io->ports[i].pox_trans_sum = csrs->POx_TRANS_SUM.csr; | |
| io->ports[i].pox_first_err = csrs->POx_FIRST_ERR.csr; | |
| io->ports[i].pox_mult_err = csrs->POx_MULT_ERR.csr; | |
| io->ports[i].pox_dm_source = csrs->POx_DM_SOURCE.csr; | |
| io->ports[i].pox_dm_dest = csrs->POx_DM_DEST.csr; | |
| io->ports[i].pox_dm_size = csrs->POx_DM_SIZE.csr; | |
| io->ports[i].pox_dm_ctrl = csrs->POx_DM_CTRL.csr; | |
| /* | |
| * Ack this port's errors, if any. POx_ERR_SUM must be last. | |
| * | |
| * Most of the error registers get cleared and unlocked when | |
| * the associated bits in POx_ERR_SUM are cleared (by writing | |
| * 1). POx_TLB_ERR is an exception and must be explicitly | |
| * cleared. | |
| */ | |
| csrs->POx_TLB_ERR.csr = io->ports[i].pox_tlb_err; | |
| csrs->POx_ERR_SUM.csr = io->ports[i].pox_err_sum; | |
| mb(); | |
| csrs->POx_ERR_SUM.csr; | |
| } | |
| /* | |
| * Ack any port 7 error(s). | |
| */ | |
| io7->csrs->PO7_ERROR_SUM.csr = io->po7_error_sum; | |
| mb(); | |
| io7->csrs->PO7_ERROR_SUM.csr; | |
| /* | |
| * Correct the io7_pid. | |
| */ | |
| lf_subpackets->io_pid = io7->pe; | |
| return io; | |
| } | |
| static int | |
| marvel_process_io_error(struct ev7_lf_subpackets *lf_subpackets, int print) | |
| { | |
| int status = MCHK_DISPOSITION_UNKNOWN_ERROR; | |
| #ifdef CONFIG_VERBOSE_MCHECK | |
| struct ev7_pal_io_subpacket *io = lf_subpackets->io; | |
| int i; | |
| #endif /* CONFIG_VERBOSE_MCHECK */ | |
| #define MARVEL_IO_ERR_VALID(x) ((x) & (1UL << 63)) | |
| if (!lf_subpackets->logout || !lf_subpackets->io) | |
| return status; | |
| /* | |
| * The PALcode only builds an IO subpacket if there is a | |
| * locally connected IO7. In the cases of | |
| * 1) a uniprocessor kernel | |
| * 2) an mp kernel before the local secondary has called in | |
| * error interrupts are all directed to the primary processor. | |
| * In that case, we may not have an IO subpacket at all and, event | |
| * if we do, it may not be the right now. | |
| * | |
| * If the RBOX indicates an I/O error interrupt, make sure we have | |
| * the correct IO7 information. If we don't have an IO subpacket | |
| * or it's the wrong one, try to find the right one. | |
| * | |
| * RBOX I/O error interrupts are indicated by RBOX_INT<29> and | |
| * RBOX_INT<10>. | |
| */ | |
| if ((lf_subpackets->io->po7_error_sum & (1UL << 32)) || | |
| ((lf_subpackets->io->po7_error_sum | | |
| lf_subpackets->io->ports[0].pox_err_sum | | |
| lf_subpackets->io->ports[1].pox_err_sum | | |
| lf_subpackets->io->ports[2].pox_err_sum | | |
| lf_subpackets->io->ports[3].pox_err_sum) & (1UL << 63))) { | |
| /* | |
| * Either we have no IO subpacket or no error is | |
| * indicated in the one we do have. Try find the | |
| * one with the error. | |
| */ | |
| if (!marvel_find_io7_with_error(lf_subpackets)) | |
| return status; | |
| } | |
| /* | |
| * We have an IO7 indicating an error - we're going to report it | |
| */ | |
| status = MCHK_DISPOSITION_REPORT; | |
| #ifdef CONFIG_VERBOSE_MCHECK | |
| if (!print) | |
| return status; | |
| printk("%s*Error occurred on IO7 at PID %u\n", | |
| err_print_prefix, lf_subpackets->io_pid); | |
| /* | |
| * Check port 7 first | |
| */ | |
| if (lf_subpackets->io->po7_error_sum & IO7__PO7_ERRSUM__ERR_MASK) { | |
| marvel_print_po7_err_sum(io); | |
| #if 0 | |
| printk("%s PORT 7 ERROR:\n" | |
| "%s PO7_ERROR_SUM: %016llx\n" | |
| "%s PO7_UNCRR_SYM: %016llx\n" | |
| "%s PO7_CRRCT_SYM: %016llx\n" | |
| "%s PO7_UGBGE_SYM: %016llx\n" | |
| "%s PO7_ERR_PKT0: %016llx\n" | |
| "%s PO7_ERR_PKT1: %016llx\n", | |
| err_print_prefix, | |
| err_print_prefix, io->po7_error_sum, | |
| err_print_prefix, io->po7_uncrr_sym, | |
| err_print_prefix, io->po7_crrct_sym, | |
| err_print_prefix, io->po7_ugbge_sym, | |
| err_print_prefix, io->po7_err_pkt0, | |
| err_print_prefix, io->po7_err_pkt1); | |
| #endif | |
| } | |
| /* | |
| * Then loop through the ports | |
| */ | |
| for (i = 0; i < IO7_NUM_PORTS; i++) { | |
| if (!MARVEL_IO_ERR_VALID(io->ports[i].pox_err_sum)) | |
| continue; | |
| printk("%s PID %u PORT %d POx_ERR_SUM: %016llx\n", | |
| err_print_prefix, | |
| lf_subpackets->io_pid, i, io->ports[i].pox_err_sum); | |
| marvel_print_pox_err(io->ports[i].pox_err_sum, &io->ports[i]); | |
| printk("%s [ POx_FIRST_ERR: %016llx ]\n", | |
| err_print_prefix, io->ports[i].pox_first_err); | |
| marvel_print_pox_err(io->ports[i].pox_first_err, | |
| &io->ports[i]); | |
| } | |
| #endif /* CONFIG_VERBOSE_MCHECK */ | |
| return status; | |
| } | |
| static int | |
| marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print) | |
| { | |
| int status = MCHK_DISPOSITION_UNKNOWN_ERROR; | |
| /* | |
| * I/O error? | |
| */ | |
| #define EV7__RBOX_INT__IO_ERROR__MASK 0x20000400ul | |
| if (lf_subpackets->logout && | |
| (lf_subpackets->logout->rbox_int & 0x20000400ul)) | |
| status = marvel_process_io_error(lf_subpackets, print); | |
| /* | |
| * Probing behind PCI-X bridges can cause machine checks on | |
| * Marvel when the probe is handled by the bridge as a split | |
| * completion transaction. The symptom is an ERROR_RESPONSE | |
| * to a CONFIG address. Since these errors will happen in | |
| * normal operation, dismiss them. | |
| * | |
| * Dismiss if: | |
| * C_STAT = 0x14 (Error Response) | |
| * C_STS<3> = 0 (C_ADDR valid) | |
| * C_ADDR<42> = 1 (I/O) | |
| * C_ADDR<31:22> = 111110xxb (PCI Config space) | |
| */ | |
| if (lf_subpackets->ev7 && | |
| (lf_subpackets->ev7->c_stat == 0x14) && | |
| !(lf_subpackets->ev7->c_sts & 0x8) && | |
| ((lf_subpackets->ev7->c_addr & 0x400ff000000ul) | |
| == 0x400fe000000ul)) | |
| status = MCHK_DISPOSITION_DISMISS; | |
| return status; | |
| } | |
| void | |
| marvel_machine_check(unsigned long vector, unsigned long la_ptr) | |
| { | |
| struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr; | |
| int (*process_frame)(struct ev7_lf_subpackets *, int) = NULL; | |
| struct ev7_lf_subpackets subpacket_collection = { NULL, }; | |
| struct ev7_pal_io_subpacket scratch_io_packet = { 0, }; | |
| struct ev7_lf_subpackets *lf_subpackets = NULL; | |
| int disposition = MCHK_DISPOSITION_UNKNOWN_ERROR; | |
| char *saved_err_prefix = err_print_prefix; | |
| char *error_type = NULL; | |
| /* | |
| * Sync the processor | |
| */ | |
| mb(); | |
| draina(); | |
| switch(vector) { | |
| case SCB_Q_SYSEVENT: | |
| process_frame = marvel_process_680_frame; | |
| error_type = "System Event"; | |
| break; | |
| case SCB_Q_SYSMCHK: | |
| process_frame = marvel_process_logout_frame; | |
| error_type = "System Uncorrectable Error"; | |
| break; | |
| case SCB_Q_SYSERR: | |
| process_frame = marvel_process_logout_frame; | |
| error_type = "System Correctable Error"; | |
| break; | |
| default: | |
| /* Don't know it - pass it up. */ | |
| ev7_machine_check(vector, la_ptr); | |
| return; | |
| } | |
| /* | |
| * A system event or error has occurred, handle it here. | |
| * | |
| * Any errors in the logout frame have already been cleared by the | |
| * PALcode, so just parse it. | |
| */ | |
| err_print_prefix = KERN_CRIT; | |
| /* | |
| * Parse the logout frame without printing first. If the only error(s) | |
| * found are classified as "dismissable", then just dismiss them and | |
| * don't print any message | |
| */ | |
| lf_subpackets = | |
| ev7_collect_logout_frame_subpackets(el_ptr, | |
| &subpacket_collection); | |
| if (process_frame && lf_subpackets && lf_subpackets->logout) { | |
| /* | |
| * We might not have the correct (or any) I/O subpacket. | |
| * [ See marvel_process_io_error() for explanation. ] | |
| * If we don't have one, point the io subpacket in | |
| * lf_subpackets at scratch_io_packet so that | |
| * marvel_find_io7_with_error() will have someplace to | |
| * store the info. | |
| */ | |
| if (!lf_subpackets->io) | |
| lf_subpackets->io = &scratch_io_packet; | |
| /* | |
| * Default io_pid to the processor reporting the error | |
| * [this will get changed in marvel_find_io7_with_error() | |
| * if a different one is needed] | |
| */ | |
| lf_subpackets->io_pid = lf_subpackets->logout->whami; | |
| /* | |
| * Evaluate the frames. | |
| */ | |
| disposition = process_frame(lf_subpackets, 0); | |
| } | |
| switch(disposition) { | |
| case MCHK_DISPOSITION_DISMISS: | |
| /* Nothing to do. */ | |
| break; | |
| case MCHK_DISPOSITION_REPORT: | |
| /* Recognized error, report it. */ | |
| printk("%s*%s (Vector 0x%x) reported on CPU %d\n", | |
| err_print_prefix, error_type, | |
| (unsigned int)vector, (int)smp_processor_id()); | |
| el_print_timestamp(&lf_subpackets->logout->timestamp); | |
| process_frame(lf_subpackets, 1); | |
| break; | |
| default: | |
| /* Unknown - dump the annotated subpackets. */ | |
| printk("%s*%s (Vector 0x%x) reported on CPU %d\n", | |
| err_print_prefix, error_type, | |
| (unsigned int)vector, (int)smp_processor_id()); | |
| el_process_subpacket(el_ptr); | |
| break; | |
| } | |
| err_print_prefix = saved_err_prefix; | |
| /* Release the logout frame. */ | |
| wrmces(0x7); | |
| mb(); | |
| } | |
| void __init | |
| marvel_register_error_handlers(void) | |
| { | |
| ev7_register_error_handlers(); | |
| } |