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A new "FRU Text in MCA" feature is defined where the Field Replaceable Unit (FRU) Text for a device is represented by a string in the new MCA_SYND1 and MCA_SYND2 registers. This feature is supported per MCA bank, and it is advertised by the McaFruTextInMca bit (MCA_CONFIG[9]). The FRU Text is populated dynamically for each individual error state (MCA_STATUS, MCA_ADDR, et al.). Handle the case where an MCA bank covers multiple devices, for example, a Unified Memory Controller (UMC) bank that manages two DIMMs. [ Yazen: Add Avadhut as co-developer for wrapper changes. ] [ bp: Do not expose MCA_CONFIG to userspace yet. ] Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com> Co-developed-by: Avadhut Naik <avadhut.naik@amd.com> Signed-off-by: Avadhut Naik <avadhut.naik@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20241022194158.110073-6-avadhut.naik@amd.com |
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