drm_gem_reset_shadow_plane(9)

💅 drm_gem_reset_shadow_plane(9)

okay so bestie, welcome to the Kernel API Manual — this one's a little function from the drm_gem_reset_shadow_plane(9) page and honestly? it's giving "small but crucial" ✨

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🌸 NAME 🌸

drm_gem_reset_shadow_plane — resets a shadow-buffered plane 🎀

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✨ SYNOPSIS ✨

void drm_gem_reset_shadow_plane (struct drm_plane *plane );

like, that's the whole signature. void return, one pointer, no drama 💅

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🦋 ARGUMENTS 🦋

• plane — the plane. that's it, that's the argument. it's the plane, the main character 👑

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💖 DESCRIPTION 💖

okay so here's the tea ☕ — this function implements struct drm_plane_funcs.reset_plane for shadow-buffered planes. it's literally the reset hook, doing reset-hook things 🔥

it assumes the current plane state is of type struct drm_shadow_plane (yes, assumes — no vibe check, no validation, just trust 🙈) and then it allocates the new state of this type. new state, who dis 💫

ngl, the whole "assumes the current plane state to be of type" thing is doing a lot of heavy lifting here — so keep that in mind if you're passing it something else 🫶

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🌈 SEE ALSO 🌈

like, go read these too, they're all part of the same friend group 💜

• the Kernel file ./drivers/gpu/drm/drm_gem_atomic_helper.c — overview(9)
• drm_gem_plane_helper_prepare_fb(9)
• __drm_gem_duplicate_shadow_plane_state(9)
• drm_gem_duplicate_shadow_plane_state(9)
• __drm_gem_destroy_shadow_plane_state(9)
• drm_gem_destroy_shadow_plane_state(9)
• __drm_gem_reset_shadow_plane(9)
• drm_gem_begin_shadow_fb_access(9)
• drm_gem_end_shadow_fb_access(9)
• drm_gem_simple_kms_begin_shadow_fb_access(9)
• drm_gem_simple_kms_end_shadow_fb_access(9)
• drm_gem_simple_kms_reset_shadow_plane(9)
• drm_gem_simple_kms_duplicate_shadow_plane_state(9)
• drm_gem_simple_kms_destroy_shadow_plane_state(9)

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🧚 and that's the whole page, bestie! this lil gem lives in ./drivers/gpu/drm and the page is dated October 2026 — so yeah, future vibes only ⭐ slay, go reset some planes 💅🫶