STRUCT POWER_ACTOR(9)

✨ struct power_actor(9) ✨

okay so bestie, this is a page from the Kernel API Manual and honestly it's giving backstage-pass energy 💅 — because struct power_actor is literally the internal power information for power actor. no cap, that's the whole NAME vibe: internal, behind-the-scenes, main character energy but for power bookkeeping 🫶

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🌸 SYNOPSIS 🌸

here's the whole struct, copied exactly, don't come for me:

struct power_actor {
    u32 req_power;
    u32 max_power;
    u32 granted_power;
    u32 extra_actor_power;
    u32 weighted_req_power;
 };

five fields, all u32, all iconic in their own way 🎀

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💜 Members 💜

okay let's meet the cast, one by one 🔥

• req_power — the requested power value. and ngl, important detail: it is not weighted 🙈
• max_power — the max allocatable power for this actor. like, the ceiling, the limit, the "that's enough out of you" number 👑
• granted_power — the granted power for this actor. yes, it's the actual granted one, not the requested one — they're different fields, keep up bestie 💖
• extra_actor_power — extra power that this actor can receive. bonus power, little treat, extra sprinkle of watts 🧚✨
• weighted_req_power — the weighted requested power, as input to IPA. and yes, req_power above was the not weighted one — this is the weighted glow-up version ⭐

quick vibe check: req_power = raw request, weighted_req_power = the same request but weighted for IPA. two different fields, two different jobs, don't mix them up fr fr 💀

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🦋 SEE ALSO 🦋

bestie the friend group here is huge and every single one of them matters, so buckle up 🍨

• the kernel file ./drivers/thermal/gov_power_allocator.c — that's the home base 🏠
• mul_frac(9)
• div_frac(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)
• power_allocator_bind(9)

like… twelve references plus a source file, we are fed today 🍓 go read them all, iykyk 💅

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and that's the page!! mwah 🫶 this one lives in ./drivers/thermal, dated October 2026 — stan a stable kernel API, periodt 🌈💖