amdgpu_dma_buf_attach(9)

💖 amdgpu_dma_buf_attach(9) 💖

okay so bestie, this is a page straight out of the Kernel API Manual — the amdgpu_dma_buf_attach(9) one — and honestly? it's short, it's sweet, and it's doing exactly one job. let's get into it 🫶

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✨ SYNOPSIS ✨

int amdgpu_dma_buf_attach (struct dma_buf *dmabuf , struct
       dma_buf_attachment *attach );

literally just a function that returns an int, takes two pointers, and lives to glue an attachment onto a DMA-buf. no drama, no cap 💅

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🌸 ARGUMENTS 🌸

• dmabuf — the DMA-buf where we attach to 🎀 this is the buffer getting a new bestie attached to it.
• attach — the attachment to add ✨ this is the new bestie in question.

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🦋 DESCRIPTION 🦋

okay so the whole vibe here: add the attachment as user to the exported DMA-buf. that's it. that's the function. it registers attach as a user of dmabuf, and honestly? iconic. simple, focused, main character energy 👑

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💜 SEE ALSO 💜

the girlies you should also be reading, in the kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c:

• PRIME Buffer Sharing(9)
• dma_buf_attach_adev(9)
• amdgpu_dma_buf_detach(9)
• amdgpu_dma_buf_pin(9)
• amdgpu_dma_buf_unpin(9)
• amdgpu_dma_buf_map(9)
• amdgpu_dma_buf_unmap(9)
• amdgpu_dma_buf_begin_cpu_access(9)
• amdgpu_gem_prime_export(9)
• amdgpu_dma_buf_create_obj(9)
• amdgpu_dma_buf_move_notify(9)
• amdgpu_gem_prime_import(9)
• amdgpu_dmabuf_is_xgmi_accessible(9)

like go read them, iykyk 🧚

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ngl the dma_buf_ops.attach implementation is literally in the NAME section and we're not skipping it — that's what this function is, bestie 🍓

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and that's the whole page!! mwah 💋 sign-off time: this gem comes from ./drivers/gpu/drm/amd/amdgpu, stamped October 2026 — see you in the next manpage, love u, bye 💖🌈⭐