power_allocator_bind(9)

💅 power_allocator_bind(9) ✨

Okay so bestie, welcome to the Kernel API Manual — this is a (9) page, aka kernel-API territory, and today's main character is power_allocator_bind. Buckle up 🎀

---

🌸 NAME 🌸

power_allocator_bind — the way you bind the power_allocator governor to a thermal zone, periodt 💅

---

✨ SYNOPSIS ✨

int power_allocator_bind (struct thermal_zone_device *tz );

That's the whole vibe. One function, one pointer, no drama 🦋

---

🫶 ARGUMENTS 🫶

• tz — the thermal zone you're binding it to. That's it, that's the argument, she's a simple icon 👑

---

💖 DESCRIPTION 💖

So what does she actually do? She initializes the PID controller parameters and then binds the whole thing to the thermal zone you handed her. Lowkey iconic, highkey essential 🧚✨

No cap, that's the entire job: init the PID parameters, bind to the tz, done 🎀

---

🔥 RETURN 🔥

Here's the vibe check on what you get back 👇

• 0 — slay, it worked, success 🎉
• -ENOMEM — you ran out of memory 😭 the allocation said "not today"
• -EINVAL — there are unsupported cooling devices in the tz. Yeah, she checked, and she's not dealing with that 🙈

---

👀 SEE ALSO 👀

Bestie, there's a whole friend group, iykyk 💜

Kernel file ./drivers/thermal/gov_power_allocator.c, plus:

• mul_frac(9)
• div_frac(9)
• struct power_actor(9)
• struct power_allocator_params(9)
• estimate_sustainable_power(9)
• estimate_pid_constants(9)
• get_sustainable_power(9)
• pid_controller(9)
• power_actor_set_power(9)
• divvy_up_power(9)
• get_governor_trips(9)
• check_power_actors(9)

---

Fr fr that's the page 🫶 this little gem lives in ./drivers/thermal, dated October 2026, and it's filed under power_allocator_bind(9) — see you in the group chat, bestie 💖✨