amdgpu_bo_set_metadata(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_bo_set_metadata — set metadata

okay so bestie, welcome to the kernel API manual for amdgpu_bo_set_metadata(9) — yes that's the whole title, and yes it's giving "short but iconic." She's a tiny function with a big job and I'm obsessed. Let's get into it 🎀

✨ SYNOPSIS ✨

int amdgpu_bo_set_metadata (struct amdgpu_bo *bo , void *metadata , u32
metadata_size , uint64_t flags );

literally the whole entire signature, character for character, no cap 💅

🌸 ARGUMENTS 🌸

  • bo — the amdgpu_bo buffer object. the main character, the one we're decorating 🫶
  • metadata — the new metadata. fresh out the box ✨
  • metadata_size — size of the new metadata. yes she comes with a size, we measure 📏
  • flags — flags of the new metadata. the little vibe settings 🚩

🦋 DESCRIPTION 🦋

So what she does: sets the buffer object's metadata, its size, and its flags. all three, in one lil call 👑

And where does she live in the wild? She's used via GEM ioctl. that's the whole route, iykyk 🌈

⭐ RETURN ⭐

  • 0 for success 🎉
  • or a negative error code on failure 😭 (she tried her best)

🔥 SEE ALSO 🔥

okay this part is a whole friend group, strap in — somebody's gotta know everybody:

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

like I said. the whole group chat. also note amdgpu_bo_get_metadata(9) is right there — that's her sister, she reads what this one writes 🧚

pro tip from me to you: this page lives in ./drivers/gpu/drm/amd/amdgpu and the version stamp says October 2026, so if you're reading this from the future, hi bestie 👋💜

and that's the page!! mwah, go set some metadata, you absolute icon 🍓💖

📦 where this page comes from