amdgpu_dma_buf_pin(9)

💖 amdgpu_dma_buf_pin(9) 💖

okay so bestie, we're in the Kernel API Manual today and this one is literally the pin implementation for &dma_buf_ops.pin. yes THAT pin. sit down, hydrate, let's go 🫶

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✨ NAME ✨

amdgpu_dma_buf_pin — the &dma_buf_ops.pin implementation. that's it, that's the whole identity, and honestly? iconic. 👑

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🌸 SYNOPSIS 🌸

int amdgpu_dma_buf_pin (struct dma_buf_attachment *attach );

like, it takes one thing and it returns an int, we love a simple signature no cap 💅

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🎀 ARGUMENTS 🎀

• attach — the attachment to pin down. that's your girl right there, the one getting pinned 🦋

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💫 DESCRIPTION 💫

okay so here's the tea: this pins the BO that's backing the DMA-buf so it can't move any more. no more sliding around, no more relocating, she is STAYING PUT. periodt. 🔥

like the whole vibe is "freeze, bestie" and the BO just has to accept it ✨

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👑 SEE ALSO 👑

• the kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c (go read it, iykyk 🧚)
• PRIME Buffer Sharing(9)
• dma_buf_attach_adev(9)
• amdgpu_dma_buf_attach(9)
• amdgpu_dma_buf_detach(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 the whole friend group showed up, we love a full roster 💜

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and that's the page!! mwah 💋 this little beauty lives under ./drivers/gpu/drm/amd/amdgpu and the version/date on it is October 2026 — so go forth, pin ur BOs, stay slay, and remember: she can't move any more. bye bestie 🎀💖✨