drm_gem_sim..._plane_state(9)

📦 version 7.3.1, in nixpkgs unstable

✨ drm_gem_sim..._plane_state(9) ✨

okay bestie, so this is a page from the Kernel API Manual and it's literally all about drm_gem_simple_kms_duplicate_shadow_plane_state 🎀 like yes the name is a mouthful, we're gonna get through it together, i promise 💅

💖 NAME 💖

drm_gem_simple_kms_duplicate_shadow_plane_state — it duplicates shadow-buffered plane state 🦋 no cap, that's the whole vibe.

🌸 SYNOPSIS 🌸

struct drm_plane_state * drm_gem_simple_kms_duplicate_shadow_plane_state
(struct drm_simple_display_pipe *pipe );

✨ ARGUMENTS ✨

  • pipe — the simple display pipe 🫶 that's it, that's the argument, she's lowkey simple (pun intended)

💅 DESCRIPTION 💅

so this function is out here implementing struct drm_simple_display_funcs.duplicate_plane_state for shadow-buffered planes 🔥 iconic behavior honestly.

the tea ☕ is that it does not duplicate existing mappings of the shadow buffers. like, not even a little. those mappings are maintained during the atomic commit by the plane's prepare_fb and cleanup_fb helpers — so they're being looked after elsewhere, don't worry your pretty head about it 💜

⭐ RETURN ⭐

  • a pointer to a new plane state on success 🎉
  • or NULL otherwise 😭 (it happens, we move on)

🦋 SEE ALSO 🦋

go off, read the whole friend group 💖:

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

mwah 💋 this came from ./drivers/gpu/drm, dated October 2026, and she's filed under drm_gem_sim..._plane_state(9) — go forth and duplicate those shadow plane states responsibly, ily 🫶💖🎀

📦 where this page comes from