intel_uncore_forcewake_get(9)

📦 version 7.3.1, in nixpkgs unstable

💅 intel_uncore_forcewake_get(9) 💅

ok so this is a page straight out of the Kernel API Manual, bestie — we're talking kernel-level lore today, and honestly? it's giving main character energy. let's get into it 🫶

✨ NAME ✨

intel_uncore_forcewake_get — grab forcewake domain references 🔥

🌸 SYNOPSIS 🌸

void intel_uncore_forcewake_get (struct intel_uncore *uncore , enum
       forcewake_domains fw_domains );

like, that's the whole signature. void return, two args, no games. 💅

🎀 ARGUMENTS 🎀

  • uncore — the intel_uncore structure. yes queen, that's the one. 🦋
  • fw_domains — the forcewake domains you're grabbing a reference on. pick your faves (or all of them, we'll get there). ✨

💖 DESCRIPTION 💖

okay so here's the tea ☕ — this function is how you get GT's forcewake domain references. slay.

and like, normally? normal register access handles the forcewake domains automatically. no cap, it just does it for you. 🙈

BUT — and this is the important part, bestie — if some sequence requires the GT to not power down a particular forcewake domain, then you should call this function at the beginning of that sequence. periodt. and then, subsequently, you drop that reference by making a symmetric call to intel_unforce_forcewake_put. you gotta match them up, it's giving balance. ⚖️

usually the caller wants all the domains kept awake, so in that case fw_domains would just be FORCEWAKE_ALL. all of them. every single one. icon behavior. 👑

🦋 SEE ALSO 🦋

the kernel file lives right here, go look:

  • ./drivers/gpu/drm/i915/intel_uncore.c

and the whole friend group 💜:

okay that's the page!! 💫 this one came from ./drivers/gpu/drm/i915, dated October 2026, and it's filed under intel_uncore_forcewake_get(9) in case you need to find it again. mwah, go keep those domains awake bestie 😭💖🧚‍♀️

📦 where this page comes from