amd64_edac: Carve out ECC-related hw settings

This is in preparation for the init path reorganization where we want
only to

1) test whether a particular node supports ECC
2) can it be enabled

and only then do the necessary allocation/initialization. For that,
we need to decouple the ECC settings of the node from the instance's
descriptor.

The should be no functional change introduced by this patch.

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

1 files changed, 9 insertions, 5 deletions

diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 4bc6f183d97c..b76dce96e8e6 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -461,17 +461,21 @@ struct amd64_pvt {
         /* place to store error injection parameters prior to issue */
         struct error_injection injection;
 
-        /* Save old hw registers' values before we modified them */
-        u32 nbctl_mcgctl_saved;         /* When true, following 2 are valid */
-        u32 old_nbctl;
-
         /* DCT per-family scrubrate setting */
         u32 min_scrubrate;
 
         /* family name this instance is running on */
         const char *ctl_name;
 
-        /* misc settings */
+};
+
+/*
+ * per-node ECC settings descriptor
+ */
+struct ecc_settings {
+        u32 old_nbctl;
+        bool nbctl_valid;
+
         struct flags {
                 unsigned long nb_mce_enable:1;
                 unsigned long nb_ecc_prev:1;