drm_exec_prepare_obj(9)

💖 drm_exec_prepare_obj(9) 💖

ok so this is a page from the Kernel API Manual, bestie — we're in kernel-land, GPU edition, and this little function is about to make a GEM object ready. slay.

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✨ NAME ✨

drm_exec_prepare_obj — prepare a GEM object for use 🎀

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🦋 SYNOPSIS 🦋

int drm_exec_prepare_obj (struct drm_exec *exec , struct drm_gem_object
*obj , unsigned int num_fences );

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🌸 ARGUMENTS 🌸

• exec — the drm_exec object that's holding all the state, iykyk 💅
• obj — the GEM object we're getting ready to use ✨
• num_fences — literally how many fences you wanna reserve 🔥

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👑 DESCRIPTION 👑

So what does it do? It prepares a GEM object for use by locking it and reserving fence slots. that's the whole vibe. lock it up, save the fence spots, done. 💜

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💀 RETURN 💀

• -EDEADLK — contention got detected 😭
• -EALREADY — the object is already locked, no cap 🙈
• -ENOMEM — memory allocation failed bestie, it's giving rough day
• 0 — zero, aka success, aka main character energy 👑

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/drm_exec.c
• Overview(9)
• drm_exec_init(9)
• drm_exec_fini(9)
• drm_exec_cleanup(9)
• drm_exec_lock_obj(9)
• drm_exec_unlock_obj(9)
• drm_exec_prepare_array(9)

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ok that's the whole page, go be iconic with it 🫶✨

mwah 💋 — this one's from ./drivers/gpu/drm, dated October 2026, and it's called drm_exec_prepare_obj(9). periodt. 🌈💅