drm_atomic_c...r_each_plane(9)

✨ drm_atomic_c...r_each_plane(9) ✨

okay bestie so this is a page straight out of the Kernel API Manual and honestly it's giving "niche but iconic" 💅 like nobody at brunch is gonna bring this up but the people who need it need it, iykyk 🫶

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🌸 NAME 🌸

drm_atomic_crtc_state_for_each_plane — bestie, this one literally iterates over the planes that are attached in the new state 🦋

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⭐ SYNOPSIS ⭐

drm_atomic_crtc_state_for_each_plane (plane , crtc_state );

like yes, that's the whole thing. she's a macro, she's a loop, she's a main character 👑

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🎀 ARGUMENTS 🎀

• plane — the loop cursor 💫 this is the little variable that like, walks through every plane one at a time. she's doing the rounds, she's the one moving.
• crtc_state — the incoming CRTC state 🌈 the state you're passing in, bestie, the one you're checking out.

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💖 DESCRIPTION 💖

so this is lowkey a sibling of drm_crtc_for_each_plane, right? same energy, but with a plot twist ✨ instead of iterating whatever planes are around right now, this one iterates the planes that will be attached if the specified state is applied 🔥 which is a whole different vibe, ngl.

and that is literally so useful — for example, in code called from drm_mode_config_funcs.atomic_check operations, where the whole entire point is to validate the incoming state 💅 like, vibe check the state before it becomes real. periodt.

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🦋 SEE ALSO 🦋

• Kernel file ./include/drm/drm_atomic_helper.h 📁
• drm_atomic_crtc_for_each_plane(9)
• drm_atomic_crtc_state_for_each_plane_state(9)
• drm_atomic_plane_enabling(9)
• drm_atomic_plane_disabling(9)

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okay that's the page!! 🎀 and for the cute little sign-off — this one lives under ./include/drm, and the manual's dated October 2026 💜 so like, mark your calendars bestie, the planes are planning ahead 😭🌸