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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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