amdgpu_gmc_agp_addr(9)

📦 version 7.3.1, in nixpkgs unstable

✨ amdgpu_gmc_agp_addr(9) ✨

okay so bestie, welcome to the Kernel API Manual 🫶 — this one's a lil function from the amdgpu GMC world, and honestly it's giving "where does this thing live in AGP space" energy 💅

🌸 NAME 🌸

amdgpu_gmc_agp_addr — return the address in the AGP address space 💖

🎀 SYNOPSIS 🎀

uint64_t amdgpu_gmc_agp_addr (struct ttm_buffer_object *bo );

🦋 ARGUMENTS 🦋

  • bo — the TTM BO that needs the address, and no cap it must be in the GTT domain 😭 like that's not optional bestie, it's a requirement.

💫 DESCRIPTION 💫

So what this iconic lil function does is try to figure out how to access the BO through the AGP aperture 🔥 like it's literally doing the detective work of "how do we get to this buffer object via AGP".

And if that's not possible? It returns AMDGPU_BO_INVALID_OFFSET — that's the "nope, can't do it" answer 💀 so if you see that come back, you know the AGP route was a no-go.

👑 SEE ALSO 👑

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c — that's where the magic lives ✨

and the whole friend group:

🎀 that's the whole page bestie, short and sweet, we love a concise icon 💅

and yeah — this one's from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, page amdgpu_gmc_agp_addr(9) 🌈 mwah, thanks for reading, ily, bye! 💖✨

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