[PATCH] EDAC/amd64: Add support for family 19h, models 40h-4fh

From: Devang Vyas
Date: Mon Nov 24 2025 - 13:14:03 EST


This patch updates the EDAC driver to include support
for AMD SoC family 19h models 40h-4fh to support
Ryzen 6000 CPUs/APUs ("Rembrandt").

The added changes enhance the ability to detect and
report memory errors on systems that utilize AMD SoCs
from the specified family.

Co-developed-by: Ramesh Garidapuri <ramesh.garidapuri@xxxxxxx>
Signed-off-by: Ramesh Garidapuri <ramesh.garidapuri@xxxxxxx>
Signed-off-by: Devang Vyas <devangnayanbhai.vyas@xxxxxxx>
---
drivers/edac/amd64_edac.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 2391f3469961..6cf0b6d7b5ec 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3863,6 +3863,9 @@ static int per_family_init(struct amd64_pvt *pvt)
pvt->max_mcs = 8;
}
break;
+ case 0x40 ... 0x4f:
+ pvt->max_mcs = 4;
+ break;
case 0x60 ... 0x6f:
pvt->flags.zn_regs_v2 = 1;
break;
--
2.25.1