atomctrl_get..._evv_on_sclk(9)

📦 version 7.3.1, in nixpkgs unstable

✨ atomctrl_get_voltage_evv_on_sclk 💅 (section 9)

okay so bestie, welcome to the Kernel API Manual — this is the atomctrl_get..._evv_on_sclk(9) page and it's literally the moment where we go ask the ATOM COMMAND table for a voltage 🎀

🌸 NAME 🌸

atomctrl_get_voltage_evv_on_sclk — gets voltage via call to ATOM COMMAND table 🫶

no cap, that's the whole job description. it goes and fetches you a voltage. iconic.

⭐ SYNOPSIS ⭐

int atomctrl_get_voltage_evv_on_sclk (struct pp_hwmgr *hwmgr , uint8_t
voltage_type , uint32_t sclk , uint16_t virtual_voltage_Id , uint16_t
*voltage );

🦋 ARGUMENTS 🦋

so like, here's who's coming to the function party 💜

  • hwmgr — input: pointer to hwManager. yes the whole manager. she's the main character.
  • voltage_type — input: type of EVV voltage — VDDC or VDDGFX. pick your girl 💅
  • sclk — input: in 10Khz unit. it's the DPM state SCLK frequency, which is defined in the PPTable SCLK/VDDC dependence table associated with this virtual_voltage_Id. iykyk 🌈
  • virtual_voltage_Id — input: voltage id which match per voltage DPM state: 0xff01, 0xff02.. 0xff08 👑
  • voltage — output: real voltage level in unit of mv. this is the one you actually came for, bestie 🍓

💀 SEE ALSO 💀

go look at the Kernel file ./drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c fr fr, and also these legends:

they're all in the same friend group, lowkey obsessed with them 🧚

and that's the whole page!! mwah 💖 sign-off era: this little beauty lives over in ./drivers/gpu/drm/amd/pm/power..., dated October 2026, and it's the atomctrl_get..._evv_on_sclk(9) page from the Kernel API Manual — slay, ate, periodt ✨🎀

📦 where this page comes from