1.. SPDX-License-Identifier: GPL-2.0 2 3Address translation 4=================== 5 6x86 AMD 7------- 8 9Zen-based AMD systems include a Data Fabric that manages the layout of 10physical memory. Devices attached to the Fabric, like memory controllers, 11I/O, etc., may not have a complete view of the system physical memory map. 12These devices may provide a "normalized", i.e. device physical, address 13when reporting memory errors. Normalized addresses must be translated to 14a system physical address for the kernel to action on the memory. 15 16AMD Address Translation Library (CONFIG_AMD_ATL) provides translation for 17this case. 18 19Glossary of acronyms used in address translation for Zen-based systems 20 21* CCM = Cache Coherent Moderator 22* COD = Cluster-on-Die 23* COH_ST = Coherent Station 24* DF = Data Fabric 25