atomctrl_get_voltage_evv(9)

✨ atomctrl_get_voltage_evv ✨

okay so bestie, welcome to the Kernel API Manual, section 9 — yes this is a kernel manpage, no I will not be normal about it 💅

🫶 SYNOPSIS 🫶

int atomctrl_get_voltage_evv (struct pp_hwmgr *hwmgr , uint16_t
virtual_voltage_id , uint16_t *voltage );

that's the whole vibe. one function, three args, and it does exactly one (1) thing: it grabs a voltage for you by hitting up the ATOM COMMAND table. iconic behaviour, honestly 🌸

💖 NAME 💖

atomctrl_get_voltage_evv — gets voltage via call to ATOM COMMAND table. that's it, that's the whole job, and it eats every time 🔥

🎀 ARGUMENTS 🎀

• hwmgr — input: pointer to hwManager. yeah it's the hwManager pointer, the main character of the whole powerplay saga 👑
• virtual_voltage_id — input: the voltage id, and it's gotta match per voltage DPM state. the approved guest list is 0xff01, 0xff02.. 0xff08 — so like, 0xff01 through 0xff08, no plus-ones, no cap 🚫🎟️
• voltage — output: the real voltage level, in unit of mv. this is where the answer gets written, so don't you dare pass something that isn't writable, bestie 😭

lowkey important: voltage is the output one. it writes to that pointer. the other two are just you telling it what you want 🦋

💜 SEE ALSO 💜

• Kernel file ./drivers/gpu/drm/amd/pm/powerplay/hwmgr/ppatomctrl.c — go read the source, it's giving main character energy fr fr 📖
• atomctrl_set_mc_reg_address_table(9)
• atomctrl_get_memory_pll_dividers_si(9)
• atomctrl_get_memory_pll_dividers_vi(9)
• atomctrl_get_voltage_evv_on_sclk(9)

and that's the page!! 🫶 sourced straight from ./drivers/gpu/drm/amd/pm/power..., dropping October 2026, filed under atomctrl_get_voltage_evv(9) — slay, go get that mv value bestie 💖✨🎀