diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
index 2712a90..85985c2 100644
--- a/drivers/edac/mce_amd.h
+++ b/drivers/edac/mce_amd.h
@@ -44,6 +44,39 @@
 #define K8_NBSH_UECC			BIT(13)
 #define K8_NBSH_ERR_SCRUBER		BIT(8)
 
+enum tt_ids {
+	TT_INSTR = 0,
+	TT_DATA,
+	TT_GEN,
+	TT_RESV,
+};
+
+enum ll_ids {
+	LL_RESV = 0,
+	LL_L1,
+	LL_L2,
+	LL_LG,
+};
+
+enum ii_ids {
+	II_MEM = 0,
+	II_RESV,
+	II_IO,
+	II_GEN,
+};
+
+enum rrrr_ids {
+	R4_GEN	= 0,
+	R4_RD,
+	R4_WR,
+	R4_DRD,
+	R4_DWR,
+	R4_IRD,
+	R4_PREF,
+	R4_EVICT,
+	R4_SNOOP,
+};
+
 extern const char *tt_msgs[];
 extern const char *ll_msgs[];
 extern const char *rrrr_msgs[];
@@ -63,6 +96,13 @@
 	u32 nbeal;
 };
 
+/*
+ * per-family decoder ops
+ */
+struct amd_decoder_ops {
+	bool (*dc_mce)(u16);
+};
+
 void amd_report_gart_errors(bool);
 void amd_register_ecc_decoder(void (*f)(int, struct mce *, u32));
 void amd_unregister_ecc_decoder(void (*f)(int, struct mce *, u32));