amdgpu_gmc_gart_location(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_gmc_gart_location(9) — a Kernel API Manual moment

okay bestie, welcome to the Kernel API Manual, this is amdgpu_gmc_gart_location(9) and she is lowkey the friend who always figures out where everyone's sitting at lunch 🍓

✨ NAME ✨

amdgmc_gmc_gart_location — nope, sorry, not that 💀 it's amdgpu_gmc_gart_location — try to find GART location. that's the whole vibe. she's a locator. a placement girlie. 🎀

🌸 SYNOPSIS 🌸

void amdgpu_gmc_gart_location (struct amdgpu_device *adev , struct
amdgpu_gmc *mc , enum amdgpu_gart_placement gart_placement );

look at her signature, so clean, so iconic ✨ returns void — she literally cannot fail, no cap (we'll get to that).

🦋 ARGUMENTS 🦋

  • adev — the amdgpu device structure, and she is carrying all necessary information in her little bag 👜 like, everything this function could possibly need lives in here.
  • mc — the memory controller structure, holding all the memory information. memory info queen 👑
  • gart_placement — the GART placement policy with respect to VRAM. this is the preference argument, the one that's like "okay but where do you WANT her to go tho" 💭

🔥 DESCRIPTION 🔥

so what does she actually do. Function will try to place GART before or after VRAM — that's it, that's the whole job, she's picking a lane 🛣️

if the GART size is bigger than the space that's left over? no worries bestie, we just adjust the GART size 🪄 she shrinks to fit, adaptable main character energy fr fr.

and therefore — this is the important part — the function will never fail. literally never. no error code, no sad return value, no -ENOMEM heartbreak 😭 she always comes through 💖

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c — that's where she lives, go say hi 🫶

and her whole friend group, the extended gmc cinematic universe:

go read them all, i'll wait 💅

anyway that's the whole page, mwah 💋 this one came from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and she answers to amdgpu_gmc_gart_location(9) — periodt. ⭐

📦 where this page comes from