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