^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/arch/alpha/kernel/err_ev6.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Error handling code supporting Alpha systems
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/sched.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/irq_regs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/hwrpb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/smp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/err_common.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/err_ev6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "err_impl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "proto.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ev6_parse_ibox(u64 i_stat, int print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) int status = MCHK_DISPOSITION_REPORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define EV6__I_STAT__PAR (1UL << 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define EV6__I_STAT__ERRMASK (EV6__I_STAT__PAR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) if (!(i_stat & EV6__I_STAT__ERRMASK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) return MCHK_DISPOSITION_UNKNOWN_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (!print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (i_stat & EV6__I_STAT__PAR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) printk("%s Icache parity error\n", err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) ev6_parse_mbox(u64 mm_stat, u64 d_stat, u64 c_stat, int print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) int status = MCHK_DISPOSITION_REPORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define EV6__MM_STAT__DC_TAG_PERR (1UL << 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define EV6__MM_STAT__ERRMASK (EV6__MM_STAT__DC_TAG_PERR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define EV6__D_STAT__TPERR_P0 (1UL << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define EV6__D_STAT__TPERR_P1 (1UL << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define EV6__D_STAT__ECC_ERR_ST (1UL << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define EV6__D_STAT__ECC_ERR_LD (1UL << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define EV6__D_STAT__SEO (1UL << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define EV6__D_STAT__ERRMASK (EV6__D_STAT__TPERR_P0 | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) EV6__D_STAT__TPERR_P1 | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) EV6__D_STAT__ECC_ERR_ST | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) EV6__D_STAT__ECC_ERR_LD | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) EV6__D_STAT__SEO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) if (!(d_stat & EV6__D_STAT__ERRMASK) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) !(mm_stat & EV6__MM_STAT__ERRMASK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return MCHK_DISPOSITION_UNKNOWN_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) if (!print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) if (mm_stat & EV6__MM_STAT__DC_TAG_PERR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) printk("%s Dcache tag parity error on probe\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) if (d_stat & EV6__D_STAT__TPERR_P0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) printk("%s Dcache tag parity error - pipe 0\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (d_stat & EV6__D_STAT__TPERR_P1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) printk("%s Dcache tag parity error - pipe 1\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) if (d_stat & EV6__D_STAT__ECC_ERR_ST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) printk("%s ECC error occurred on a store\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) if (d_stat & EV6__D_STAT__ECC_ERR_LD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) printk("%s ECC error occurred on a %s load\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) err_print_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) c_stat ? "" : "speculative ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (d_stat & EV6__D_STAT__SEO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) printk("%s Dcache second error\n", err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) u64 c_stat, u64 c_sts, int print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static const char * const sourcename[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) "UNKNOWN", "UNKNOWN", "UNKNOWN",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) "MEMORY", "BCACHE", "DCACHE",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) "BCACHE PROBE", "BCACHE PROBE"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static const char * const streamname[] = { "D", "I" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) static const char * const bitsname[] = { "SINGLE", "DOUBLE" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) int status = MCHK_DISPOSITION_REPORT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) int source = -1, stream = -1, bits = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #define EV6__C_STAT__BC_PERR (0x01)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #define EV6__C_STAT__DC_PERR (0x02)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #define EV6__C_STAT__DSTREAM_MEM_ERR (0x03)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #define EV6__C_STAT__DSTREAM_BC_ERR (0x04)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #define EV6__C_STAT__DSTREAM_DC_ERR (0x05)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #define EV6__C_STAT__PROBE_BC_ERR0 (0x06) /* both 6 and 7 indicate... */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #define EV6__C_STAT__PROBE_BC_ERR1 (0x07) /* ...probe bc error. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #define EV6__C_STAT__ISTREAM_MEM_ERR (0x0B)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define EV6__C_STAT__ISTREAM_BC_ERR (0x0C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define EV6__C_STAT__DSTREAM_MEM_DBL (0x13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) #define EV6__C_STAT__DSTREAM_BC_DBL (0x14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) #define EV6__C_STAT__ISTREAM_MEM_DBL (0x1B)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) #define EV6__C_STAT__ISTREAM_BC_DBL (0x1C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define EV6__C_STAT__SOURCE_MEMORY (0x03)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define EV6__C_STAT__SOURCE_BCACHE (0x04)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define EV6__C_STAT__SOURCE__S (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define EV6__C_STAT__SOURCE__M (0x07)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) #define EV6__C_STAT__ISTREAM__S (3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define EV6__C_STAT__ISTREAM__M (0x01)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define EV6__C_STAT__DOUBLE__S (4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) #define EV6__C_STAT__DOUBLE__M (0x01)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) #define EV6__C_STAT__ERRMASK (0x1F)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define EV6__C_STS__SHARED (1 << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define EV6__C_STS__DIRTY (1 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define EV6__C_STS__VALID (1 << 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #define EV6__C_STS__PARITY (1 << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) if (!(c_stat & EV6__C_STAT__ERRMASK))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) return MCHK_DISPOSITION_UNKNOWN_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (!print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) source = EXTRACT(c_stat, EV6__C_STAT__SOURCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) stream = EXTRACT(c_stat, EV6__C_STAT__ISTREAM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) bits = EXTRACT(c_stat, EV6__C_STAT__DOUBLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if (c_stat & EV6__C_STAT__BC_PERR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) printk("%s Bcache tag parity error\n", err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) source = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) if (c_stat & EV6__C_STAT__DC_PERR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) printk("%s Dcache tag parity error\n", err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) source = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if (c_stat == EV6__C_STAT__PROBE_BC_ERR0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) c_stat == EV6__C_STAT__PROBE_BC_ERR1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) printk("%s Bcache single-bit error on a probe hit\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) source = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) if (source != -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) printk("%s %s-STREAM %s-BIT ECC error from %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) err_print_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) streamname[stream], bitsname[bits], sourcename[source]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) printk("%s Address: 0x%016llx\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) " Syndrome[upper.lower]: %02llx.%02llx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) err_print_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) c_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) c2_syn, c1_syn);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) if (source == EV6__C_STAT__SOURCE_MEMORY ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) source == EV6__C_STAT__SOURCE_BCACHE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) printk("%s Block status: %s%s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) err_print_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) (c_sts & EV6__C_STS__SHARED) ? "SHARED " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) (c_sts & EV6__C_STS__DIRTY) ? "DIRTY " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) (c_sts & EV6__C_STS__VALID) ? "VALID " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) (c_sts & EV6__C_STS__PARITY) ? "PARITY " : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) ev6_register_error_handlers(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* None right now. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) ev6_process_logout_frame(struct el_common *mchk_header, int print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct el_common_EV6_mcheck *ev6mchk =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) (struct el_common_EV6_mcheck *)mchk_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) int status = MCHK_DISPOSITION_UNKNOWN_ERROR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) status |= ev6_parse_ibox(ev6mchk->I_STAT, print);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) status |= ev6_parse_mbox(ev6mchk->MM_STAT, ev6mchk->DC_STAT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) ev6mchk->C_STAT, print);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) status |= ev6_parse_cbox(ev6mchk->C_ADDR, ev6mchk->DC1_SYNDROME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) ev6mchk->DC0_SYNDROME, ev6mchk->C_STAT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) ev6mchk->C_STS, print);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (!print)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (status != MCHK_DISPOSITION_DISMISS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) char *saved_err_prefix = err_print_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * Dump some additional information from the frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) printk("%s EXC_ADDR: 0x%016lx IER_CM: 0x%016lx"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) " ISUM: 0x%016lx\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) " PAL_BASE: 0x%016lx I_CTL: 0x%016lx"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) " PCTX: 0x%016lx\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) err_print_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) ev6mchk->EXC_ADDR, ev6mchk->IER_CM, ev6mchk->ISUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) ev6mchk->PAL_BASE, ev6mchk->I_CTL, ev6mchk->PCTX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) if (status == MCHK_DISPOSITION_UNKNOWN_ERROR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) printk("%s UNKNOWN error, frame follows:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) err_print_prefix);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /* had decode -- downgrade print level for frame */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) err_print_prefix = KERN_NOTICE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) mchk_dump_logout_frame(mchk_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) err_print_prefix = saved_err_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) ev6_machine_check(unsigned long vector, unsigned long la_ptr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct el_common *mchk_header = (struct el_common *)la_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * Sync the processor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) draina();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) * Parse the logout frame without printing first. If the only error(s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) * found are have a disposition of "dismiss", then just dismiss them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * and don't print any message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if (ev6_process_logout_frame(mchk_header, 0) !=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) MCHK_DISPOSITION_DISMISS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) char *saved_err_prefix = err_print_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) err_print_prefix = KERN_CRIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) * Either a nondismissable error was detected or no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * recognized error was detected in the logout frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * -- report the error in either case
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) printk("%s*CPU %s Error (Vector 0x%x) reported on CPU %d:\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) err_print_prefix,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) (vector == SCB_Q_PROCERR)?"Correctable":"Uncorrectable",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) (unsigned int)vector, (int)smp_processor_id());
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) ev6_process_logout_frame(mchk_header, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) dik_show_regs(get_irq_regs(), NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) err_print_prefix = saved_err_prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * Release the logout frame
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) wrmces(0x7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) mb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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