amdgpu_gmc_set_agp_default(9)

📦 version 7.3.1, in nixpkgs unstable

✨ amdgpu_gmc_set_agp_default(9) ✨

okay so bestie, welcome to the Kernel API Manual entry for amdgpu_gmc_set_agp_default — yes it's a mouthful, yes you'll be saying it in your sleep, and yes it's lowkey iconic 💅

🌸 NAME 🌸

amdgpu_gmc_set_agp_default — sets the default AGP aperture value. that's it, that's the whole job, and she does it flawlessly 🎀

⭐ SYNOPSIS ⭐

void amdgpu_gmc_set_agp_default (struct amdgpu_device *adev , struct
amdgpu_gmc *mc );

literally just hand her two structs and she handles the rest, no cap 🫶

🦋 ARGUMENTS 🦋

  • adev — the amdgpu device structure, and she is holding all the necessary information for you. main character energy fr fr 👑
  • mc — the memory controller structure, keeping all the memory information safe and cozy. she knows things 💜

🔥 DESCRIPTION 🔥

okay so here's the tea ☕ — to disable the AGP aperture, you have to set the start to a larger value than the end. that's the trick, that's the whole vibe check, and it's giving "backwards but make it work" 💀

this function sets the default value — which you can then override using amdgpu_gmc_agp_location if you wanna enable the AGP aperture on a specific chip. so think of it as setting the baseline and then doing whatever you want afterwards, obsessed honestly ✨

💖 SEE ALSO 💖

like, go read the whole friend group, they all slay in their own way 🌈

ngl bestie, this one's short and sweet — set the default, let the chip-specific override do its thing, and remember: start bigger than end means AGP aperture is off. periodt 💅

and that's the page!! brought to you by the fine folks over at ./drivers/gpu/drm/amd/amdgpu, dated October 2026, living under the amdgpu_gmc_set_agp_default(9) header 🧚💖 bye bestie, go read some kernel source 🍓

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