drm_gem_dmabuf_vunmap(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_gem_dmabuf_vunmap(9) — the Kernel API Manual, but make it make sense

okay so bestie, welcome to drm_gem_dmabuf_vunmap, a page from the Kernel API Manual itself, and honestly? she's short, she's sweet, and she undoes things. iconic behavior tbh. 🎀

✨ NAME ✨

drm_gem_dmabuf_vunmap — the dma_buf vunmap implementation for GEM. yes, that's the whole vibe: she unmaps. 🦋

✨ SYNOPSIS ✨

void drm_gem_dmabuf_vunmap (struct dma_buf *dma_buf , struct iosys_map
*map );

like, literally the whole signature, no cap. two args, void return, that's it, that's the girl. 💅

✨ ARGUMENTS ✨

  • dma_buf — the buffer that's getting unmapped, bestie. she's the one catching the release 🫶
  • map — the virtual address of the buffer. the location. the spot. 📍

✨ DESCRIPTION ✨

so what she actually does: she releases a kernel virtual mapping. that's the whole job. lowkey noble. 💖

she's built to be used as the dma_buf_ops.vunmap callback, so if you need that slot filled, she's right there, ready, main character energy ✨

and the way that she operates? she calls into drm_gem_object_funcs.vunmap for any device specific handling. so the generic part is hers, the device-specific part gets handed off, and everyone eats. 🍓

ngl this is the cleanup half of the mapping story — the counterpart energy to drm_gem_dmabuf_vmap(9) down in SEE ALSO. the facts stay the facts, she just serves them cute. 💀

🌈 SEE ALSO 🌈

okay this list is LONG and we're not skipping a single one, bestie — every single reference, exactly as printed, periodt:

like, go read them, iykyk 📚🔥

and that's the whole page, bestie!! 🧚 no notes, she slayed 💜

sign-off time 🎀 : this one lives in ./drivers/gpu/drm, and she's stamped October 2026 and titled drm_gem_dmabuf_vunmap(9) — so long, farewell, go unmap something responsibly 👑🌸

📦 where this page comes from