EDAC, amd64: Add Deferred Error type

Currently, deferred errors are classified as correctable in EDAC. Add a
new error type for deferred errors so that they are correctly reported
to the user.

Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: Aravind Gopalakrishnan <aravindksg.lkml@gmail.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1479423463-8536-7-git-send-email-Yazen.Ghannam@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>

drivers/edac/amd64_edac.c

@@ -2165,6 +2165,8 @@ static void __log_ecc_error(struct mem_ctl_info *mci, struct err_info *err,
 		err_type = HW_EVENT_ERR_CORRECTED;
 	else if (ecc_type == 1)
 		err_type = HW_EVENT_ERR_UNCORRECTED;
+	else if (ecc_type == 3)
+		err_type = HW_EVENT_ERR_DEFERRED;
 	else {
 		WARN(1, "Something is rotten in the state of Denmark.\n");
 		return;

include/linux/edac.h

@@ -134,6 +134,7 @@ enum dev_type {
 enum hw_event_mc_err_type {
 	HW_EVENT_ERR_CORRECTED,
 	HW_EVENT_ERR_UNCORRECTED,
+	HW_EVENT_ERR_DEFERRED,
 	HW_EVENT_ERR_FATAL,
 	HW_EVENT_ERR_INFO,
 };
@@ -145,6 +146,8 @@ static inline char *mc_event_error_type(const unsigned int err_type)
 		return "Corrected";
 	case HW_EVENT_ERR_UNCORRECTED:
 		return "Uncorrected";
+	case HW_EVENT_ERR_DEFERRED:
+		return "Deferred";
 	case HW_EVENT_ERR_FATAL:
 		return "Fatal";
 	default: