amdgpu_bo_kmap(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_bo_kmap(9)

okay so bestie, welcome to the kernel API manual (that's the manual name, yes, we're fancy like that) — today's main character is amdgpu_bo_kmap, and she is literally the girl who takes your buffer object and gives it a kernel virtual address. no cap. 🦋

✨ NAME ✨

amdgpu_bo_kmap — map an &amdgpu_bo buffer object 🎀

🌸 SYNOPSIS 🌸

int amdgpu_bo_kmap (struct amdgpu_bo *bo , void **ptr );

🫶 ARGUMENTS 🫶

  • bo — the amdgpu_bo buffer object that's getting mapped. she's the one. 👑
  • ptr — the kernel virtual address that gets returned to you. it's an out-param, so she hands you the address here. 💖

💜 DESCRIPTION 💜

So here's the tea: it calls ttm_bo_kmap to set up the kernel virtual mapping, and then it calls amdgpu_bo_kptr to get the kernel virtual address. that's it, that's the whole plot. two calls, zero drama. slay. ✨

⭐ RETURN ⭐

0 for success, or a negative error code on failure. fr fr, check it — don't just assume it worked. 😭

🦋 SEE ALSO 🦋

Kernel file: ./drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

and the whole friend group (yes, all of them, i'm not leaving anyone out of the group chat 💅):

ok and finally the lil sign-off: this page lives in ./drivers/gpu/drm/amd/amdgpu, and it's dated October 2026. mwah 💋 go map some buffers, bestie. 🧚💜
📦 where this page comes from