[PATCH 14/14] amd64_edac: decode FR MCEs

[Borislav Petkov <borislav.petkov@amd.com>]

See Fam10h BKDG (31116, rev. 3.28), Table 101.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
---
 drivers/edac/amd64_edac.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 175f95e..a035122 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2406,6 +2406,15 @@ wrong_ls_mce:
 	pr_warning("Corrupted LS MCE info?\n");
 }
 
+static void amd64_decode_fr_mce(u64 mc5_status)
+{
+	/* we have only one error signature so match all fields at once. */
+	if ((mc5_status & 0xffff) == 0x0f0f)
+		pr_emerg(" FR Error: CPU Watchdog timer expire.\n");
+	else
+		pr_warning("Corrupted FR MCE info?\n");
+}
+
 void amd64_decode_nb_mce(struct mem_ctl_info *mci, struct err_regs *regs,
 			 int handle_errors, int ecc)
 {
@@ -2524,6 +2533,10 @@ void decode_mce(struct mce *m)
 		amd64_decode_nb_mce(mci_lookup[0], &regs, 1, ecc);
 		break;
 
+	case 5:
+		amd64_decode_fr_mce(m->status);
+		break;
+
 	default:
 		break;
 	}
-- 
1.6.3.3