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authorYazen Ghannam <yazen.ghannam@amd.com>2019-10-22 20:35:11 +0000
committerBorislav Petkov <bp@suse.de>2019-11-06 11:07:01 +0100
commit5e4c55276ae8758f5789722b384bb2ab3de3a24f (patch)
treead567a861183e681c66838a9992a18bf68bb863f /drivers/edac/amd64_edac.h
parent80355a3b2db9d0b713af5169e2cdd7f8fbfdad82 (diff)
EDAC/amd64: Save max number of controllers to family type
The maximum number of memory controllers is fixed within a family/model group. In most cases, this has been fixed at 2, but some systems may have up to 8. The struct amd64_family_type already contains family/model-specific information, and this can be used rather than adding model checks to various functions. Create a new field in struct amd64_family_type for max_mcs. Set this when setting other family type information, and use this when needing the maximum number of memory controllers possible for a system. Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org> Cc: James Morse <james.morse@arm.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Robert Richter <rrichter@marvell.com> Cc: Tony Luck <tony.luck@intel.com> Link: https://lkml.kernel.org/r/20191106012448.243970-4-Yazen.Ghannam@amd.com
Diffstat (limited to 'drivers/edac/amd64_edac.h')
-rw-r--r--drivers/edac/amd64_edac.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index 8c3cda81e619..9be31688110b 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -479,6 +479,8 @@ struct low_ops {
struct amd64_family_type {
const char *ctl_name;
u16 f0_id, f1_id, f2_id, f6_id;
+ /* Maximum number of memory controllers per die/node. */
+ u8 max_mcs;
struct low_ops ops;
};