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authorMuralidhara M K <muralidhara.mk@amd.com>2024-01-28 09:59:50 -0600
committerBorislav Petkov (AMD) <bp@alien8.de>2024-01-29 10:22:41 +0100
commit453f0ae797328e675840466c80e5b268d7feb9ba (patch)
tree4cf5c7f7f23d7252ecf12d7d3932f970733201f9 /net
parent1289c431641f8beacc47db506210154dcea2492a (diff)
RAS/AMD/ATL: Add MI300 support
AMD MI300 systems include on-die HBM3 memory and a unique topology. And they fall under Data Fabric version 4.5 in overall design. Generally, topology information (IDs, etc.) is gathered from Data Fabric registers. However, the unique topology for MI300 means that some topology information is fixed in hardware and follows arbitrary mappings. Furthermore, not all hardware instances are software-visible, so register accesses must be adjusted. Recognize and add helper functions for the new MI300 interleave modes. Add lookup tables for fixed values where appropriate. Adjust how Die and Node IDs are found and used. Also, fix some register bitmasks that were mislabeled. Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com> Co-developed-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20240128155950.1434067-1-yazen.ghannam@amd.com
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