drm_atomic_..._async_check(9)

✨ NAME ✨

okay so bestie, welcome to the Kernel API Manual 💖 — today's main character is drm_atomic_helper_async_check, and its whole entire job is checking if a state can be committed asynchronously 🦋

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🌸 SYNOPSIS 🌸

int drm_atomic_helper_async_check (struct drm_device *dev , struct
drm_atomic_commit *state );

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🎀 ARGUMENTS 🎀

• dev — the DRM device, aka the vibe itself, the hardware baddie we're talking about 💅
• state — the driver state object, the thing we're tryna check, the moment fr fr

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👑 DESCRIPTION 👑

So this helper literally checks if it's possible to commit the state asynchronously ✨ Async commits are not supposed to swap the states like normal sync commits do — nope, not today — they just do in-place changes on the current state. no swapping, just vibes 🫶

It returns 0 if the commit can happen in an asynchronous fashion 🔥 or an error if it can't 😭

💀 Important caveat bestie, pay attention: the error does not mean the commit is dead — it just means it can't be committed asynchronously. If it fails, treat that commit like a normal synchronous commit. regroup, reschedule, slay anyway 👑

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🌈 SEE ALSO 🌈

the whole friend group, no cap 🧚:

• Kernel file ./drivers/gpu/drm/drm_atomic_helper.c
• overview(9)
• drm_atomic_helper_check_modeset(9)
• drm_atomic_helper_check_wb_connector_state(9)
• drm_atomic_helper_check_plane_state(9)
• drm_atomic_helper_check_crtc_primary_plane(9)
• drm_atomic_helper_check_planes(9)
• drm_atomic_helper_check(9)
• drm_atomic_helper_commit_encoder_bridge_disable(9)
• drm_atomic_helper_commit_crtc_disable(9)
• drm_atomic_helper_commit_encoder_bridge_post_disable(9)
• drm_atomic_helper_update_legacy_modeset_state(9)
• drm_atomic_helper_calc_timestamping_constants(9)
• drm_atomic_helper_commit_crtc_set_mode(9)
• drm_atomic_helper_commit_modeset_disables(9)
• drm_atomic_helper_commit_writebacks(9)
• drm_atomic_helper_commit_encoder_bridge_pre_enable(9)
• drm_atomic_helper_commit_crtc_enable(9)
• drm_atomic_helper_commit_encoder_bridge_enable(9)
• drm_atomic_helper_commit_modeset_enables(9)
• drm_atomic_helper_wait_for_fences(9)
• drm_atomic_helper_wait_for_vblanks(9)
• drm_atomic_helper_wait_for_flip_done(9)
• drm_atomic_helper_commit_tail(9)
• drm_atomic_helper_commit_tail_rpm(9)
• drm_atomic_helper_async_commit(9)
• drm_atomic_helper_commit(9)
• implementing nonblocking commit(9)
• drm_atomic_helper_setup_commit(9)
• drm_atomic_helper_wait_for_dependencies(9)
• drm_atomic_helper_fake_vblank(9)
• drm_atomic_helper_commit_hw_done(9)
• drm_atomic_helper_commit_cleanup_done(9)
• drm_atomic_helper_prepare_planes(9)
• drm_atomic_helper_unprepare_planes(9)
• drm_atomic_helper_commit_planes(9)
• drm_atomic_helper_commit_planes_on_crtc(9)
• drm_atomic_helper_disable_planes_on_crtc(9)
• drm_atomic_helper_cleanup_planes(9)
• drm_atomic_helper_swap_state(9)
• drm_atomic_helper_update_plane(9)
• drm_atomic_helper_disable_plane(9)
• drm_atomic_helper_set_config(9)
• drm_atomic_helper_disable_all(9)
• drm_atomic_helper_reset_crtc(9)
• drm_atomic_helper_shutdown(9)
• drm_atomic_helper_duplicate_state(9)
• drm_atomic_helper_suspend(9)
• drm_atomic_helper_commit_duplicated_state(9)
• drm_atomic_helper_resume(9)
• drm_atomic_helper_page_flip(9)
• drm_atomic_helper_page_flip_target(9)
• drm_atomic_helper_bridge_propagate_bus_fmt(9)
• drm_atomic_helper_bridge_get_hdmi_output_bus_fmts(9)

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okay that's the whole page bestie, go forth and check those async commits 💜

this masterpiece lives in ./drivers/gpu/drm, dated October 2026 🎀 the Kernel API Manual said periodt 💅✨