Date: Thu, 24 Jul 2025 23:06:48 +0100 From: obiwac <obiwac@freebsd.org> To: freebsd-hackers <freebsd-hackers@freebsd.org>, "cem@FreeBSD.org" <cem@freebsd.org>, Jung-uk Kim <jkim@freebsd.org>, kib@freebsd.org Subject: AMD SMU driver (amdsmu) Message-ID: <CAN8-kNXHVjzFawtP7g2y2gVB3bNPa2=DYdMVCxqV4qDaePM6Jw@mail.gmail.com>
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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 And of these, I have only had the opportunity to test on Phoenix (specifically the 7040 series). Thanks! Aymeric
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