ttm_prime_object_init(9)

✨ NAME ✨

okay so this is ttm_prime_object_init(9) from the Kernel API Manual, and its whole personality is: initialize a ttm_prime_object. iconic behavior, honestly 💅

🌸 SYNOPSIS 🌸

int ttm_prime_object_init (struct ttm_object_file *tfile , size_t size ,
       struct ttm_prime_object *prime , enum ttm_object_type type , void
       (*refcount_release) (struct ttm_base_object **) );

🎀 ARGUMENTS 🎀

• tfile — the struct ttm_object_file that identifies the caller. basically “who dis” but kernel-flavored 🫶
• size — the size of the dma_bufs we export. yes bestie, we’re exporting them.
• prime — the object to be initialized. main character energy, fr fr ✨
• type — see ttm_base_object_init for this one 👀
• refcount_release — also see ttm_base_object_init, that’s where the deets live 🧚

🦋 DESCRIPTION 🦋

this function initializes an object that is compatible with the drm_prime model for data sharing between processes and devices. that’s the vibe: sharing data across processes and devices, no cap 💖

🌈 SEE ALSO 🌈

the kernel file ./drivers/gpu/drm/vmwgfx/ttm_object.c is the source of truth, and you should also go peek at:

• struct ttm_object_file(9)
• get_dma_buf_unless_doomed(9)
• ttm_prime_refcount_release(9)
• ttm_prime_dmabuf_release(9)
• ttm_prime_fd_to_handle(9)
• ttm_prime_handle_to_fd(9)

and that’s the whole page, bestie 💅 this one’s sourced from ./drivers/gpu/drm/vmwgfx and dated October 2026 — mwah, go initialize something beautiful 💖🦋