cpuidle_enter_state(9)

📦 version 7.3.1, in nixpkgs unstable

✨ cpuidle_enter_state — enter the state and update stats ✨

okay so bestie, this is a Kernel API Manual page (section 9, the kernel-API girlies 💅) and it's about cpuidle_enter_state. That's it. That's the whole vibe. Let's get into it 🫶

🌸 NAME 🌸

cpuidle_enter_state — the function that enters the state and updates the stats ✨

Like, it literally does both things. Enters. And updates. No cap.

🦋 SYNOPSIS 🦋

noinstr int cpuidle_enter_state (struct cpuidle_device *dev , struct
       cpuidle_driver *drv , int index );

so it takes three args, returns an int, and it's marked noinstr — that's the whole signature, noinstr included, don't come for me 😌

🎀 ARGUMENTS 🎀

  • dev — the cpuidle device for this cpu. Like, this cpu's device, specifically. Not somebody else's. Main character energy only 💅
  • drv — the cpuidle driver for this cpu. Same deal: this cpu's driver, periodt.
  • index — an index into the states table in drv of the state to enter 👑 so like, it's the index-th entry of the states table that lives inside drv, and that's the state you're going into. iykyk.

💖 SEE ALSO 💖

first of all, the kernel file this lives in (per the page):

./drivers/cpuidle/cpuidle.c

and then the whole friend group, fr fr — every single one of these is referenced:

like, that's the entire cpuidle cinematic universe and honestly? obsessed 💀💖

ok that's genuinely everything this page says — no extra lore, no invented behavior, I'm not out here making things up 🙈

that's the page, bestie 💜 this one lives in the directory ./drivers/cpuidle, it's dated October 2026, and yes it's the cpuidle_enter_state(9) page from the Kernel API Manual — go forth and enter those states, slay 💅✨🦋

📦 where this page comes from