Based on kernel version 6.11
. Page generated on 2024-09-24 08:21 EST
.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | .. SPDX-License-Identifier: GPL-2.0 Address translation =================== x86 AMD ------- Zen-based AMD systems include a Data Fabric that manages the layout of physical memory. Devices attached to the Fabric, like memory controllers, I/O, etc., may not have a complete view of the system physical memory map. These devices may provide a "normalized", i.e. device physical, address when reporting memory errors. Normalized addresses must be translated to a system physical address for the kernel to action on the memory. AMD Address Translation Library (CONFIG_AMD_ATL) provides translation for this case. Glossary of acronyms used in address translation for Zen-based systems * CCM = Cache Coherent Moderator * COD = Cluster-on-Die * COH_ST = Coherent Station * DF = Data Fabric |