EDAC, MCE: Add F15h FP MCE decoder

Add decoder for FP MCEs.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>

1 files changed, 44 insertions, 0 deletions

diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index afda6de5d7e3..c14abe3e4074 100644
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -692,6 +692,46 @@ wrong_fr_mce:
         pr_emerg(HW_ERR "Corrupted FR MCE info?\n");
 }
 
+static void amd_decode_fp_mce(struct mce *m)
+{
+        u8 xec = (m->status >> 16) & xec_mask;
+
+        pr_emerg(HW_ERR "Floating Point Unit Error: ");
+
+        switch (xec) {
+        case 0x1:
+                pr_cont("Free List");
+                break;
+
+        case 0x2:
+                pr_cont("Physical Register File");
+                break;
+
+        case 0x3:
+                pr_cont("Retire Queue");
+                break;
+
+        case 0x4:
+                pr_cont("Scheduler table");
+                break;
+
+        case 0x5:
+                pr_cont("Status Register File");
+                break;
+
+        default:
+                goto wrong_fp_mce;
+                break;
+        }
+
+        pr_cont(" parity error.\n");
+
+        return;
+
+wrong_fp_mce:
+        pr_emerg(HW_ERR "Corrupted FP MCE info?\n");
+}
+
 static inline void amd_decode_err_code(u16 ec)
 {
         if (TLB_ERROR(ec)) {
@@ -777,6 +817,10 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
                 amd_decode_fr_mce(m);
                 break;
 
+        case 6:
+                amd_decode_fp_mce(m);
+                break;
+
         default:
                 break;
         }