Re: AMD SMU driver (amdsmu)
- Reply: obiwac : "Re: AMD SMU driver (amdsmu)"
- In reply to: obiwac : "AMD SMU driver (amdsmu)"
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Date: Fri, 25 Jul 2025 11:37:30 UTC
obiwac wrote: > Hi! > > I have added an amdsmu driver for the AMD SMU chip (which is necessary > for S0i3 entry as well as diagnostics), and I'm looking for people to > review and test these changes out. > > The three patches I'm interested in at the moment are: > > - https://reviews.freebsd.org/D48683 amdsmu: Initial work on a driver > for the AMD SMU > - https://reviews.freebsd.org/D48714 amdsmu: Get and expose sysctls > for metrics about last sleep > - https://reviews.freebsd.org/D51487 amdsmu: Read and dump idlemask > > There is one other amdsmu-related patch, but it depends on ACPI > changes for s2idle that haven't been committed yet, so it's less of a > priority: > > - https://reviews.freebsd.org/D48721 amdsmu: Sleep entry/exit hints for PMFW > > This is currently only expected to work on the following CPUs: > > #define CPUID_AMD_REMBRANDT 0x14B5 > #define CPUID_AMD_PHOENIX 0x14E8 > #define CPUID_AMD_STRIX_POINT 0x14A4 How does this map to e.g. dmesg cpu information? CPU: AMD Ryzen 9 9900X 12-Core Processor (4391.75-MHz K8-class CPU) Origin="AuthenticAMD" Id=0xb40f40 Family=0x1a Model=0x44 Stepping=0 > And of these, I have only had the opportunity to test on Phoenix > (specifically the 7040 series).