Date: Fri, 25 Jul 2025 13:37:40 +0100 From: obiwac <obiwac@freebsd.org> To: cyric@mm.st Cc: freebsd-hackers@freebsd.org Subject: Re: AMD SMU driver (amdsmu) Message-ID: <CAN8-kNXeHYt0QSSjEORR6DkniMuSc41Hxb85pr7yNmJkR2earw@mail.gmail.com> In-Reply-To: <f43eae80-2e53-42da-8ac7-c32ca23e7d6a@mm.st> References: <CAN8-kNXHVjzFawtP7g2y2gVB3bNPa2=DYdMVCxqV4qDaePM6Jw@mail.gmail.com> <27d98db1-3d04-4c17-89eb-27cba672d0b4@mm.st> <CAN8-kNXSXWCaDYV2587-uLcRNN3MZaRg141z-kKRxcpoopjaHw@mail.gmail.com> <f43eae80-2e53-42da-8ac7-c32ca23e7d6a@mm.st>
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Yeah, maybe I should change this. On Fri, 25 Jul 2025 at 13:36, <cyric@mm.st> wrote: > > obiwac wrote: > > This is the PCI device ID of the root complex (usually hostb0). You > > can check this with pciconf -lv in "device", e.g. > > > > hostb0@pci0:0:0:0: class=0x060000 rev=0x00 hdr=0x00 vendor=0x1022 > > device=0x14e8 subvendor=0xf111 subdevice=0x0006 > > vendor = 'Advanced Micro Devices, Inc. [AMD]' > > device = 'Phoenix Root Complex' > > class = bridge > > subclass = HOST-PCI > > Thanks, I was misled by "CPUID" in the constant name. > > > On Fri, 25 Jul 2025 at 12:37, <cyric@mm.st> wrote: > >> > >> 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). > >> > > > >
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