On Sat, Nov 29, 2025 at 8:44 PM Alexandre Demers <[email protected]> wrote: > > Hi, > > I was wondering if SI GPUs support reporting power and voltage values > at the hardware level? I read somewhere that it was supported from > GCN1.2 (Tonga and over), but I haven't found anything on prior > generations. Going through the register names, I wasn't able to > identify any who may correspond to power or voltage level. > > So I'm asking, just in case it is supported and I missed the > information while searching for it.
Correct. There is no interface to query the power. For voltages you can look at mmTARGET_AND_CURRENT_PROFILE_INDEX to find out the current DPM level and then convert that into struct si_ps to look up the voltages, similar to what is done for sclk and mclk. See si_dpm_read_sensor(). Alex
