drm_vma_offset_manager_init(9)

💖 drm_vma_offset_manager_init 💖

okay so this is a page straight out of the Kernel API Manual — drm_vma_offset_manager_init(9), bestie. it's the glow-up ritual for a brand-new offset-manager, and honestly? it's giving "fresh start, new me" energy ✨

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🌸 NAME 🌸

drm_vma_offset_manager_init — initialize a new offset-manager 🎀

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⭐ SYNOPSIS ⭐

void drm_vma_offset_manager_init (struct drm_vma_offset_manager *mgr ,
unsigned long page_offset , unsigned long size );

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🦋 ARGUMENTS 🦋

• mgr — the manager object itself. this is the main character, the one getting initialized 💅
• page_offset — offset of the available memory area, and yes it's page-based 🍓
• size — size of the available address space range, also page-based 🌸

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✨ DESCRIPTION ✨

so what does it do? it initializes a shiny new offset-manager, periodt. 🫶 the offset and the area size that the manager gets to work with come in as page_offset and size — and here's the important part, bestie: both of these are interpreted as page-numbers, not bytes. like, do not pass bytes, i'm begging 😭 page numbers only, fr fr.

adding and removing nodes from the manager is locked internally and protected against concurrent access — very "i got myself, i'm safe" of it honestly 🔥

but lowkey, the node allocation and destruction? that's left for the caller 🙈 the manager isn't doing that for you. and while you're calling into the vma-manager, a given node must always be guaranteed to be referenced. no exceptions, no vibes-based skipping, okay? 👑

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👑 SEE ALSO 👑

• Kernel file ./drivers/gpu/drm/drm_vma_manager.c — vma offset manager(9) 📁
• drm_vma_offset_manager_destroy(9)
• drm_vma_offset_lookup_locked(9)
• drm_vma_offset_add(9)
• drm_vma_offset_remove(9)
• drm_vma_node_allow(9)
• drm_vma_node_allow_once(9)
• drm_vma_node_revoke(9)
• drm_vma_node_is_allowed(9)

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okay that's the whole thing, bestie 🌈 and like all good group chats, this one's got a cute little sign-off: the source lives at ./drivers/gpu/drm, and it's dated October 2026. slay, see you in the next manpage 💖🧚💜