amdgpu_dma_buf_detach(9)

💅 amdgpu_dma_buf_detach(9) 💅

okay so bestie, welcome to the Kernel API Manual</> ✨ — this one's a lil function called amdgpu_dma_buf_detach, and honestly? She's short, she's sweet, she's iconic. Let's get into it 🎀

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🌸 NAME 🌸

amdgpu_dma_buf_detach — literally the &dma_buf_ops.detach implementation, no cap 💅

✨ SYNOPSIS ✨

void amdgpu_dma_buf_detach (struct dma_buf *dmabuf , struct
       dma_buf_attachment *attach );

Like... she returns void, she takes two args, she minds her own business 🫶

🦋 ARGUMENTS 🦋

• dmabuf — the DMA-buf where we remove the attachment from 💖 this is the one we're detaching from, bestie, keep up
• attach — the attachment to remove 🎀 the actual thing getting yeeted

🔥 DESCRIPTION 🔥

Drop the runtime PM reference taken in amdgpu_dma_buf_attach.

That's it. That's the whole vibe. Attach takes a runtime PM reference, and detach gives it right back — it's giving responsible, it's giving balanced reference counting, it's giving main character energy ✨ Don't leave her hanging or you'll have a leak bestie, and we do NOT stan a leak 😭💀

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c — the source, go read it, iykyk 📖
• PRIME Buffer Sharing(9)
• dma_buf_attach_adev(9)
• amdgpu_dma_buf_attach(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)

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fr fr go read the whole fam, they all ate 💅✨

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and that's the whole page bestie, mwah 🍓 — brought to you by ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and filed under amdgpu_dma_buf_detach(9). periodt. 👑💜