drm_gem_map_attach(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_gem_map_attach(9) — like, the GEM dma_buf attach situation 💅

okay bestie, welcome to the Kernel API Manual ✨ this one's a tiny little function with main character energy, so let's get into it 🫶

✨ NAME ✨

drm_gem_map_attach — the dma_buf attach implementation for GEM, periodt 💫

🌸 SYNOPSIS 🌸

int drm_gem_map_attach (struct dma_buf *dma_buf , struct
       dma_buf_attachment *attach );

🎀 ARGUMENTS 🎀

  • dma_buf — the buffer you're attaching the device to, no cap 🦋
  • attach — the buffer attachment data itself, iconic 💜

🔥 DESCRIPTION 🔥

So here's the tea ☕ — this function calls drm_gem_object_funcs.pin so the device-specific handling can do its thing. Literally that's the vibe.

You can use this as the dma_buf_ops.attach callback, iykyk 👑

⚠️ bestie listen: it Must be used together with drm_gem_map_detach. Like, they're a matching set, don't separate them 😭

And the returns? Returns 0 on success, and a negative error code on failure. That's it, that's the whole energy 💀

🌈 SEE ALSO 🌈

the way that this list just goes on and on — but every single one matters, so here we go, all of them, in order, exactly as they are 🧚:

✨ and that's the whole page bestie ✨ this iconic little number lives in ./drivers/gpu/drm, dated October 2026 — screenshot it, bookmark it, obsess over it 💖🎀🦋

📦 where this page comes from