EDAC, mce_amd: Use cpu_to_node() to find the node ID

Using the homegrown amd_get_nb_id() to find a node ID on AMD was fine
while the L3 to node mapping was 1:1. And Zen topology broke this. So
let's start slowly moving away from it and use the topology interfaces
instead.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1490041614-90057-2-git-send-email-Yazen.Ghannam@amd.com
[ Massage commit message. ]
Signed-off-by: Borislav Petkov <bp@suse.de>

diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c
index 9a2658a256a986ebb386ee564f7c3c03da270887..e8e9d7df0a6e31758a7a2b4d74929fa77109b2be 100644 (file)
--- a/drivers/edac/mce_amd.c
+++ b/drivers/edac/mce_amd.c
@@ -878,12 +878,8 @@ static void decode_smca_errors(struct mce *m)
                pr_cont("%s.\n", smca_mce_descs[bank_type].descs[xec]);
        }
 
-       /*
-        * amd_get_nb_id() returns the last level cache id.
-        * The last level cache on Fam17h is 1 level below the node.
-        */
        if (bank_type == SMCA_UMC && xec == 0 && decode_dram_ecc)
-               decode_dram_ecc(amd_get_nb_id(m->extcpu) >> 1, m);
+               decode_dram_ecc(cpu_to_node(m->extcpu), m);
 }
 
 static inline void amd_decode_err_code(u16 ec)