The memory error location processing in ghes_edac_report_mem_error() have Duplicated Code with cper_mem_err_location(), cper_dimm_err_location(), and cper_mem_err_type_str() in drivers/firmware/efi/cper.c. To avoid the duplicated code, introduce the above cper_*() into ghes_edac_report_mem_error(). A side effect is that the report format in ghes_edac is changed. The changes are to: - add device info into ghes_edac - change bit_pos to bit_position, col to column, requestorID to requestor_id, etc in ghes_edac - move requestor_id, responder_id, target_id and chip_id into memory error location in ghes_edac - add "DIMM location: not present." for DIMM location in ghes_edac - remove the 'space' delimiter after the colon in cper_mem_err_location(), suggested by Robert The original EDAC and cper error log are as follows (all Validation Bits are enabled): -------------------------------------------------------------------- [ 281.759984] EDAC MC0: 1 CE Single-symbol ChipKill ECC on unknown memory (node:0 card:0 module:0 rank:0 bank:1793 bank_group:7 bank_address:1 row:5310 col:520 bit_pos:0 DIMM DMI handle: 0x0000 chipID: 0 page:0x8a5f45 offset:0x20 grain:1 syndrome:0x0 - APEI location: node:0 card:0 module:0 rank:0 bank:1793 bank_group:7 bank_address:1 row:5310 col:520 bit_pos:0 DIMM DMI handle: 0x0000 chipID: 0 status(0x0000000000000000): reserved requestorID: 0x0000000000000000 responderID: 0x0000000000000000 targetID: 0x0000000000000000) [ 281.818273] {2}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 2 [ 281.828878] {2}[Hardware Error]: It has been corrected by h/w and requires no further action [ 281.839687] {2}[Hardware Error]: event severity: corrected [ 281.847522] {2}[Hardware Error]: Error 0, type: corrected [ 281.855331] {2}[Hardware Error]: section_type: memory error [ 281.863389] {2}[Hardware Error]: error_status: 0x0000000000000000 [ 281.871983] {2}[Hardware Error]: physical_address: 0x00000008a5f45020 [ 281.880944] {2}[Hardware Error]: physical_address_mask: 0x0000000000000000 [ 281.890361] {2}[Hardware Error]: node: 0 card: 0 module: 0 rank: 0 bank: 1793 bank_group: 7 bank_address: 1 device: 0 row: 5310 column: 520 bit_position: 0 requestor_id: 0x0000000000000000 responder_id: 0x0000000000000000 target_id: 0x0000000000000000 chip_id: 0 [ 281.921361] {2}[Hardware Error]: error_type: 4, single-symbol chipkill ECC [ 281.931021] {2}[Hardware Error]: DIMM location: not present. DMI handle: 0x0000 -------------------------------------------------------------------- Now, the EDAC and cper error log are properly reporting the error as follows (all Validation Bits are enabled): -------------------------------------------------------------------- [ 2335.677847] EDAC MC0: 1 CE single-symbol chipkill ECC on 0x0000 (node:0 card:0 module:0 rank:0 bank:770 bank_group:3 bank_address:2 device:0 row:6510 column:1544 bit_position:0 requestor_id:0x0000000000000000 responder_id:0x0000000000000000 target_id:0x0000000000000000 chip_id:0 DIMM location: not present. DMI handle: 0x0000 page:0x8cb743 offset:0x20 grain:1 syndrome:0x0 - APEI location: node:0 card:0 module:0 rank:0 bank:770 bank_group:3 bank_address:2 device:0 row:6510 column:1544 bit_position:0 requestor_id: 0x0000000000000000 responder_id:0x0000000000000000 target_id:0x0000000000000000 chip_id:0 DIMM location: not present. DMI handle: 0x0000 status(0x0000000000000000): reserved) [ 2335.753234] {2}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 2 [ 2335.763930] {2}[Hardware Error]: It has been corrected by h/w and requires no further action [ 2335.774828] {2}[Hardware Error]: event severity: corrected [ 2335.782761] {2}[Hardware Error]: Error 0, type: corrected [ 2335.790671] {2}[Hardware Error]: section_type: memory error [ 2335.798838] {2}[Hardware Error]: error_status: 0x0000000000000000, reserved [ 2335.808444] {2}[Hardware Error]: physical_address: 0x00000008cb743020 [ 2335.817552] {2}[Hardware Error]: physical_address_mask: 0x0000000000000000 [ 2335.827098] {2}[Hardware Error]: node:0 card:0 module:0 rank:0 bank:770 bank_group:3 bank_address:2 device:0 row:6510 column:1544 bit_position:0 requestor_id: 0x0000000000000000 responder_id:0x0000000000000000 target_id:0x0000000000000000 chip_id:0 [ 2335.857212] {2}[Hardware Error]: error_type: 4, single-symbol chipkill ECC [ 2335.867001] {2}[Hardware Error]: DIMM location: not present. DMI handle: 0x0000 -------------------------------------------------------------------- NOTE: Not all bits are populated by BIOS in my platform, I manually enable all validation bits during test so that we can see log message and differences of all fields more clearly. Therefore, the values of some fields look strange. + mem_err->validation_bits = 0xfffffffffffffff; Although the UEFI_CPER/EDAC_GHES dependency is always solved through ACPI_APEI_GHES/ACPI_APEI, add the UEFI_CPER dependency explicitly for EDAC_GHES in Kconfig. Signed-off-by: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx> --- drivers/edac/Kconfig | 1 + drivers/edac/ghes_edac.c | 196 +++++++----------------------------- drivers/firmware/efi/cper.c | 36 +++---- include/linux/cper.h | 2 + 4 files changed, 56 insertions(+), 179 deletions(-) diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index 58ab63642e72..23f11554f400 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -55,6 +55,7 @@ config EDAC_DECODE_MCE config EDAC_GHES bool "Output ACPI APEI/GHES BIOS detected errors via EDAC" depends on ACPI_APEI_GHES && (EDAC=y) + select UEFI_CPER help Not all machines support hardware-driven error report. Some of those provide a BIOS-driven error report mechanism via ACPI, using the diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c index 6d1ddecbf0da..94e9f6b45817 100644 --- a/drivers/edac/ghes_edac.c +++ b/drivers/edac/ghes_edac.c @@ -235,10 +235,36 @@ static void ghes_scan_system(void) system_scanned = true; } +static int ghes_edac_mem_err_other_detail(const struct cper_sec_mem_err *mem, + char *msg, const char *location) +{ + u32 len, n; + + if (!msg) + return 0; + + n = 0; + len = 2 * CPER_REC_LEN - 1; + + n += snprintf(msg + n, len - n, "APEI location: %s ", location); + + if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS) { + u64 status = mem->error_status; + + n += snprintf(msg + n, len - n, "status(0x%016llx): ", + (long long)status); + n += snprintf(msg + n, len - n, "%s ", cper_mem_err_status_str(status)); + } + + msg[n] = '\0'; + return n; +} + void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) { struct edac_raw_error_desc *e; struct mem_ctl_info *mci; + struct cper_mem_err_compact cmem; struct ghes_pvt *pvt; unsigned long flags; char *p; @@ -292,60 +318,10 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) /* Error type, mapped on e->msg */ if (mem_err->validation_bits & CPER_MEM_VALID_ERROR_TYPE) { + u8 etype = mem_err->error_type; + p = pvt->msg; - switch (mem_err->error_type) { - case 0: - p += sprintf(p, "Unknown"); - break; - case 1: - p += sprintf(p, "No error"); - break; - case 2: - p += sprintf(p, "Single-bit ECC"); - break; - case 3: - p += sprintf(p, "Multi-bit ECC"); - break; - case 4: - p += sprintf(p, "Single-symbol ChipKill ECC"); - break; - case 5: - p += sprintf(p, "Multi-symbol ChipKill ECC"); - break; - case 6: - p += sprintf(p, "Master abort"); - break; - case 7: - p += sprintf(p, "Target abort"); - break; - case 8: - p += sprintf(p, "Parity Error"); - break; - case 9: - p += sprintf(p, "Watchdog timeout"); - break; - case 10: - p += sprintf(p, "Invalid address"); - break; - case 11: - p += sprintf(p, "Mirror Broken"); - break; - case 12: - p += sprintf(p, "Memory Sparing"); - break; - case 13: - p += sprintf(p, "Scrub corrected error"); - break; - case 14: - p += sprintf(p, "Scrub uncorrected error"); - break; - case 15: - p += sprintf(p, "Physical Memory Map-out event"); - break; - default: - p += sprintf(p, "reserved error (%d)", - mem_err->error_type); - } + p += snprintf(p, sizeof(pvt->msg), "%s", cper_mem_err_type_str(etype)); } else { strcpy(pvt->msg, "unknown error"); } @@ -362,52 +338,19 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) /* Memory error location, mapped on e->location */ p = e->location; - if (mem_err->validation_bits & CPER_MEM_VALID_NODE) - p += sprintf(p, "node:%d ", mem_err->node); - if (mem_err->validation_bits & CPER_MEM_VALID_CARD) - p += sprintf(p, "card:%d ", mem_err->card); - if (mem_err->validation_bits & CPER_MEM_VALID_MODULE) - p += sprintf(p, "module:%d ", mem_err->module); - if (mem_err->validation_bits & CPER_MEM_VALID_RANK_NUMBER) - p += sprintf(p, "rank:%d ", mem_err->rank); - if (mem_err->validation_bits & CPER_MEM_VALID_BANK) - p += sprintf(p, "bank:%d ", mem_err->bank); - if (mem_err->validation_bits & CPER_MEM_VALID_BANK_GROUP) - p += sprintf(p, "bank_group:%d ", - mem_err->bank >> CPER_MEM_BANK_GROUP_SHIFT); - if (mem_err->validation_bits & CPER_MEM_VALID_BANK_ADDRESS) - p += sprintf(p, "bank_address:%d ", - mem_err->bank & CPER_MEM_BANK_ADDRESS_MASK); - if (mem_err->validation_bits & (CPER_MEM_VALID_ROW | CPER_MEM_VALID_ROW_EXT)) { - u32 row = mem_err->row; - - row |= cper_get_mem_extension(mem_err->validation_bits, mem_err->extended); - p += sprintf(p, "row:%d ", row); - } - if (mem_err->validation_bits & CPER_MEM_VALID_COLUMN) - p += sprintf(p, "col:%d ", mem_err->column); - if (mem_err->validation_bits & CPER_MEM_VALID_BIT_POSITION) - p += sprintf(p, "bit_pos:%d ", mem_err->bit_pos); + cper_mem_err_pack(mem_err, &cmem); + p += cper_mem_err_location(&cmem, p); + if (mem_err->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) { - const char *bank = NULL, *device = NULL; struct dimm_info *dimm; - dmi_memdev_name(mem_err->mem_dev_handle, &bank, &device); - if (bank != NULL && device != NULL) - p += sprintf(p, "DIMM location:%s %s ", bank, device); - else - p += sprintf(p, "DIMM DMI handle: 0x%.4x ", - mem_err->mem_dev_handle); - + p += cper_dimm_err_location(&cmem, p); dimm = find_dimm_by_handle(mci, mem_err->mem_dev_handle); if (dimm) { e->top_layer = dimm->idx; strcpy(e->label, dimm->label); } } - if (mem_err->validation_bits & CPER_MEM_VALID_CHIP_ID) - p += sprintf(p, "chipID: %d ", - mem_err->extended >> CPER_MEM_CHIP_ID_SHIFT); if (p > e->location) *(p - 1) = '\0'; @@ -416,78 +359,7 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err) /* All other fields are mapped on e->other_detail */ p = pvt->other_detail; - p += snprintf(p, sizeof(pvt->other_detail), - "APEI location: %s ", e->location); - if (mem_err->validation_bits & CPER_MEM_VALID_ERROR_STATUS) { - u64 status = mem_err->error_status; - - p += sprintf(p, "status(0x%016llx): ", (long long)status); - switch ((status >> 8) & 0xff) { - case 1: - p += sprintf(p, "Error detected internal to the component "); - break; - case 16: - p += sprintf(p, "Error detected in the bus "); - break; - case 4: - p += sprintf(p, "Storage error in DRAM memory "); - break; - case 5: - p += sprintf(p, "Storage error in TLB "); - break; - case 6: - p += sprintf(p, "Storage error in cache "); - break; - case 7: - p += sprintf(p, "Error in one or more functional units "); - break; - case 8: - p += sprintf(p, "component failed self test "); - break; - case 9: - p += sprintf(p, "Overflow or undervalue of internal queue "); - break; - case 17: - p += sprintf(p, "Virtual address not found on IO-TLB or IO-PDIR "); - break; - case 18: - p += sprintf(p, "Improper access error "); - break; - case 19: - p += sprintf(p, "Access to a memory address which is not mapped to any component "); - break; - case 20: - p += sprintf(p, "Loss of Lockstep "); - break; - case 21: - p += sprintf(p, "Response not associated with a request "); - break; - case 22: - p += sprintf(p, "Bus parity error - must also set the A, C, or D Bits "); - break; - case 23: - p += sprintf(p, "Detection of a PATH_ERROR "); - break; - case 25: - p += sprintf(p, "Bus operation timeout "); - break; - case 26: - p += sprintf(p, "A read was issued to data that has been poisoned "); - break; - default: - p += sprintf(p, "reserved "); - break; - } - } - if (mem_err->validation_bits & CPER_MEM_VALID_REQUESTOR_ID) - p += sprintf(p, "requestorID: 0x%016llx ", - (long long)mem_err->requestor_id); - if (mem_err->validation_bits & CPER_MEM_VALID_RESPONDER_ID) - p += sprintf(p, "responderID: 0x%016llx ", - (long long)mem_err->responder_id); - if (mem_err->validation_bits & CPER_MEM_VALID_TARGET_ID) - p += sprintf(p, "targetID: 0x%016llx ", - (long long)mem_err->responder_id); + p += ghes_edac_mem_err_other_detail(mem_err, p, e->location); if (p > pvt->other_detail) *(p - 1) = '\0'; diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c index addafccecd84..3efec4aca212 100644 --- a/drivers/firmware/efi/cper.c +++ b/drivers/firmware/efi/cper.c @@ -254,7 +254,7 @@ const char *cper_mem_err_status_str(u64 status) } EXPORT_SYMBOL_GPL(cper_mem_err_status_str); -static int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg) +int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg) { u32 len, n; @@ -264,51 +264,52 @@ static int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg) n = 0; len = CPER_REC_LEN; if (mem->validation_bits & CPER_MEM_VALID_NODE) - n += scnprintf(msg + n, len - n, "node: %d ", mem->node); + n += scnprintf(msg + n, len - n, "node:%d ", mem->node); if (mem->validation_bits & CPER_MEM_VALID_CARD) - n += scnprintf(msg + n, len - n, "card: %d ", mem->card); + n += scnprintf(msg + n, len - n, "card:%d ", mem->card); if (mem->validation_bits & CPER_MEM_VALID_MODULE) - n += scnprintf(msg + n, len - n, "module: %d ", mem->module); + n += scnprintf(msg + n, len - n, "module:%d ", mem->module); if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER) - n += scnprintf(msg + n, len - n, "rank: %d ", mem->rank); + n += scnprintf(msg + n, len - n, "rank:%d ", mem->rank); if (mem->validation_bits & CPER_MEM_VALID_BANK) - n += scnprintf(msg + n, len - n, "bank: %d ", mem->bank); + n += scnprintf(msg + n, len - n, "bank:%d ", mem->bank); if (mem->validation_bits & CPER_MEM_VALID_BANK_GROUP) - n += scnprintf(msg + n, len - n, "bank_group: %d ", + n += scnprintf(msg + n, len - n, "bank_group:%d ", mem->bank >> CPER_MEM_BANK_GROUP_SHIFT); if (mem->validation_bits & CPER_MEM_VALID_BANK_ADDRESS) - n += scnprintf(msg + n, len - n, "bank_address: %d ", + n += scnprintf(msg + n, len - n, "bank_address:%d ", mem->bank & CPER_MEM_BANK_ADDRESS_MASK); if (mem->validation_bits & CPER_MEM_VALID_DEVICE) - n += scnprintf(msg + n, len - n, "device: %d ", mem->device); + n += scnprintf(msg + n, len - n, "device:%d ", mem->device); if (mem->validation_bits & (CPER_MEM_VALID_ROW | CPER_MEM_VALID_ROW_EXT)) { u32 row = mem->row; row |= cper_get_mem_extension(mem->validation_bits, mem->extended); - n += scnprintf(msg + n, len - n, "row: %d ", row); + n += scnprintf(msg + n, len - n, "row:%d ", row); } if (mem->validation_bits & CPER_MEM_VALID_COLUMN) - n += scnprintf(msg + n, len - n, "column: %d ", mem->column); + n += scnprintf(msg + n, len - n, "column:%d ", mem->column); if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION) - n += scnprintf(msg + n, len - n, "bit_position: %d ", + n += scnprintf(msg + n, len - n, "bit_position:%d ", mem->bit_pos); if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID) - n += scnprintf(msg + n, len - n, "requestor_id: 0x%016llx ", + n += scnprintf(msg + n, len - n, "requestor_id:0x%016llx ", mem->requestor_id); if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID) - n += scnprintf(msg + n, len - n, "responder_id: 0x%016llx ", + n += scnprintf(msg + n, len - n, "responder_id:0x%016llx ", mem->responder_id); if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID) - n += scnprintf(msg + n, len - n, "target_id: 0x%016llx ", + n += scnprintf(msg + n, len - n, "target_id:0x%016llx ", mem->target_id); if (mem->validation_bits & CPER_MEM_VALID_CHIP_ID) - n += scnprintf(msg + n, len - n, "chip_id: %d ", + n += scnprintf(msg + n, len - n, "chip_id:%d ", mem->extended >> CPER_MEM_CHIP_ID_SHIFT); return n; } +EXPORT_SYMBOL_GPL(cper_mem_err_location); -static int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg) +int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg) { u32 len, n; const char *bank = NULL, *device = NULL; @@ -327,6 +328,7 @@ static int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg) return n; } +EXPORT_SYMBOL_GPL(cper_dimm_err_location); void cper_mem_err_pack(const struct cper_sec_mem_err *mem, struct cper_mem_err_compact *cmem) diff --git a/include/linux/cper.h b/include/linux/cper.h index 5b1dd27b317d..eacb7dd7b3af 100644 --- a/include/linux/cper.h +++ b/include/linux/cper.h @@ -569,5 +569,7 @@ void cper_print_proc_arm(const char *pfx, const struct cper_sec_proc_arm *proc); void cper_print_proc_ia(const char *pfx, const struct cper_sec_proc_ia *proc); +int cper_mem_err_location(struct cper_mem_err_compact *mem, char *msg); +int cper_dimm_err_location(struct cper_mem_err_compact *mem, char *msg); #endif -- 2.20.1.12.g72788fdb