amd64_edac: Erratum #637 workaround
F15h CPUs may report a non-DRAM address when reporting an error address
belonging to a CC6 state save area. Add a workaround to detect this
condition and compute the actual DRAM address of the error as documented
in the Revision Guide for AMD Family 15h Models 00h-0Fh Processors.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 0110930..9a666cb 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -196,6 +196,7 @@
#define DCT_CFG_SEL 0x10C
+#define DRAM_LOCAL_NODE_BASE 0x120
#define DRAM_LOCAL_NODE_LIM 0x124
#define DRAM_BASE_HI 0x140