drm_atomic_helper_commit(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_atomic_helper_commit(9) 💅

okay so bestie, welcome to the Kernel API Manual — yes we're in the kernel docs now, main character energy only. This page is all about drm_atomic_helper_commit, and it's genuinely iconic, let me tell you everything 🫶

✨ NAME ✨

drm_atomic_helper_commit — commit validated state object. that's it, that's the whole vibe: you got a state object, it's already been validated, now you commit it 💖

🌸 SYNOPSIS 🌸

int drm_atomic_helper_commit (struct drm_device *dev , struct
drm_atomic_commit *state , bool nonblock );

🎀 ARGUMENTS 🎀

  • dev — the DRM device. your fave. the whole reason we're here 💜
  • state — the driver state object. this is the one getting committed, no cap.
  • nonblock — whether nonblocking behavior is requested. like, do you wanna wait around or not, bestie?

🦋 DESCRIPTION 🦋

so here's the tea: this function commits a state object that was pre-validated with drm_atomic_helper_check. already vetted, already slayed ✨

but heads up — it can still fail even after all that, like when the framebuffer reservation fails, for example. the vibe check isn't a guarantee, fr fr 😭

it also implements nonblocking commits, using drm_atomic_helper_setup_commit and related functions. so like, the async girlies are covered 💅

and the actual committing of the hardware state? that gets done through the drm_mode_config_helper_funcs.atomic_commit_tail callback, or its default implementation, drm_atomic_helper_commit_tail. those are the ones actually touching the hardware, iykyk 🔥

⭐ RETURN ⭐

Zero for success, or -errno. classic. we love a return value that tells you exactly what's up 💖

🌈 SEE ALSO 🌈

okay this is the long part and honestly? it's giving "linked list of destiny" — every single one of these matters, so imma list them all, no skipping 🙈

and that's the whole page bestie, you ate that 💅✨

cute little sign-off: this gem lives over in ./drivers/gpu/drm, and it's stamped October 2026 🎀 go forth and commit (your state objects, not crimes) 🦋💖

📦 where this page comes from