drm_atomic_...licate_state(9)

💅 drm_atomic_helper_plane_duplicate_state(9) 💅

okay so this is a page from the Kernel API Manual (yes bestie, kernel — like the actual Linux kernel, we're in the big leagues now 🎀) and it's all about one little function that does one little job. and honestly? she ate. ✨

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🦋 SYNOPSIS 🦋

struct drm_plane_state * drm_atomic_helper_plane_duplicate_state (struct
drm_plane *plane );

like literally that's the whole thing. a function, takes a pointer, gives you a pointer back. iconic behaviour, no notes.

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🌸 ARGUMENTS 🌸

• plane — the drm plane, bestie. that's the whole description. it's a plane. drm-flavoured. 🛫

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💖 DESCRIPTION 💖

so this is the default plane state duplicate hook — say that five times fast, i dare you 😭 — and it's specifically for drivers which don't have their own subclassed plane state structure. meaning: if you went and made your own fancy custom plane-state struct, this isn't your girl, go write your own hook. but if you're out here with the plain-vanilla struct? she's literally here for you. 🫶

duplicate hook, aka "copy the state so atomic commits can do their little transactional thing without trashing the live state". that's the vibe. that's the function. 💅

ngl this page is short because the function is short. not every icon needs a trilogy. some just drop one single and leave. 👑

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⭐ SEE ALSO ⭐

okay this list is long and i'm obsessed — it's basically the whole atomic state helper family reunion. every one of them, in order, exactly as written:

• Kernel file ./drivers/gpu/drm/drm_atomic_state_helper.c atomic state reset and initialization(9)
• __drm_atomic_helper_crtc_state_init(9)
• __drm_atomic_helper_crtc_reset(9)
• drm_atomic_helper_crtc_reset(9)
• drm_atomic_helper_crtc_create_state(9)
• __drm_atomic_helper_crtc_duplicate_state(9)
• drm_atomic_helper_crtc_duplicate_state(9)
• __drm_atomic_helper_crtc_destroy_state(9)
• drm_atomic_helper_crtc_destroy_state(9)
• __drm_atomic_helper_plane_state_init(9)
• __drm_atomic_helper_plane_reset(9)
• drm_atomic_helper_plane_reset(9)
• drm_atomic_helper_plane_create_state(9)
• __drm_atomic_helper_plane_duplicate_state(9)
• __drm_atomic_helper_plane_destroy_state(9)
• drm_atomic_helper_plane_destroy_state(9)
• __drm_atomic_helper_connector_state_init(9)
• __drm_atomic_helper_connector_reset(9)
• drm_atomic_helper_connector_reset(9)
• drm_atomic_helper_connector_create_state(9)
• drm_atomic_helper_connector_tv_margins_reset(9)
• drm_atomic_helper_connector_tv_reset(9)
• drm_atomic_helper_connector_tv_check(9)
• __drm_atomic_helper_connector_duplicate_state(9)
• drm_atomic_helper_connector_duplicate_state(9)
• __drm_atomic_helper_connector_destroy_state(9)
• drm_atomic_helper_connector_destroy_state(9)
• __drm_atomic_helper_private_obj_create_state(9)
• __drm_atomic_helper_private_obj_duplicate_state(9)
• __drm_atomic_helper_bridge_duplicate_state(9)
• drm_atomic_helper_bridge_duplicate_state(9)
• drm_atomic_helper_bridge_destroy_state(9)
• __drm_atomic_helper_bridge_state_init(9)
• drm_atomic_helper_bridge_create_state(9)

like the crtc girlies, the plane girlies, the connector girlies (with their whole tv subplot 🌈), the private_obj girlies, and the bridge girlies all showed up. it's giving family dinner. it's giving community. i love it here. 💜

iykyk: the double-underscore ones are the internal ones. the ones without are the public ones. the list just gives you both, unbothered, together. 🧚

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🎀 the cute sign-off 🎀

this page lives in ./drivers/gpu/drm, dated October 2026, and it's page drm_atomic_...licate_state(9) of the Kernel API Manual. slay, documented, periodt. 🌟