[PATCH Intenal 0/2] EDAC/amd64: Add Family 1Ah Model 80h-8Fh support and fix csrow decode

From: Vishal Badole

Date: Wed Sep 23 2026 - 07:41:46 EST


This series adds AMD Family 1Ah Model 80h-8Fh support to the amd64_edac
driver and fixes a UMC csrow decode issue seen on that part.

Patch 1 adds support for Family 1Ah Model 80h-8Fh.

Patch 2 fixes the chip select decode for DRAM ECC errors. The syndrome
field was masked assuming eight chip selects while the controller
implements four, producing an out-of-range csrow and an error reported
against "unknown memory". Mask with the number of chip selects the
controller actually implements.

Tested on a Family 1Ah Model 88h board with injected ECC errors.

Vishal Badole (2):
EDAC/amd64: Add support for AMD family 1Ah models 80h-8Fh
EDAC/amd64: Limit UMC csrow decode to the implemented chip selects

drivers/edac/amd64_edac.c | 17 +++++++++++------
drivers/edac/amd64_edac.h | 2 +-
2 files changed, 12 insertions(+), 7 deletions(-)

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2.34.1