in ghes_edac.c [238:498]
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 ghes_pvt *pvt;
unsigned long flags;
char *p;
/*
* We can do the locking below because GHES defers error processing
* from NMI to IRQ context. Whenever that changes, we'd at least
* know.
*/
if (WARN_ON_ONCE(in_nmi()))
return;
spin_lock_irqsave(&ghes_lock, flags);
pvt = ghes_pvt;
if (!pvt)
goto unlock;
mci = pvt->mci;
e = &mci->error_desc;
/* Cleans the error report buffer */
memset(e, 0, sizeof (*e));
e->error_count = 1;
e->grain = 1;
e->msg = pvt->msg;
e->other_detail = pvt->other_detail;
e->top_layer = -1;
e->mid_layer = -1;
e->low_layer = -1;
*pvt->other_detail = '\0';
*pvt->msg = '\0';
switch (sev) {
case GHES_SEV_CORRECTED:
e->type = HW_EVENT_ERR_CORRECTED;
break;
case GHES_SEV_RECOVERABLE:
e->type = HW_EVENT_ERR_UNCORRECTED;
break;
case GHES_SEV_PANIC:
e->type = HW_EVENT_ERR_FATAL;
break;
default:
case GHES_SEV_NO:
e->type = HW_EVENT_ERR_INFO;
}
edac_dbg(1, "error validation_bits: 0x%08llx\n",
(long long)mem_err->validation_bits);
/* Error type, mapped on e->msg */
if (mem_err->validation_bits & CPER_MEM_VALID_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);
}
} else {
strcpy(pvt->msg, "unknown error");
}
/* Error address */
if (mem_err->validation_bits & CPER_MEM_VALID_PA) {
e->page_frame_number = PHYS_PFN(mem_err->physical_addr);
e->offset_in_page = offset_in_page(mem_err->physical_addr);
}
/* Error grain */
if (mem_err->validation_bits & CPER_MEM_VALID_PA_MASK)
e->grain = ~mem_err->physical_addr_mask + 1;
/* 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);
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);
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';
if (!*e->label)
strcpy(e->label, "unknown memory");
/* 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);
if (p > pvt->other_detail)
*(p - 1) = '\0';
edac_raw_mc_handle_error(e);
unlock:
spin_unlock_irqrestore(&ghes_lock, flags);
}