amdgpu_vm_u...stats_locked(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_vm_update_stats_locked — Kernel API Manual, bestie edition 🎀

okay so bestie, you know the Kernel API Manual? This is one of its pages, and it lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026. Buckle up, we're doing kernel accounting ✨

🌸 NAME 🌸

amdgpu_vm_update_stats_locked — the little helper that updates the normal memory stat 🫶 literally its whole job.

🦋 SYNOPSIS 🦋

void amdgpu_vm_update_stats_locked (struct amdgpu_vm_bo_base *base ,
struct ttm_resource *res , int sign );

three args, no vibes wasted 💅

✨ ARGUMENTS ✨

  • base — the base structure for tracking BO usage in a VM. it's giving main character energy for the bookkeeping 👑
  • res — the ttm_resource we're using for the purpose of accounting. and no, it may or may not be bo->tbo.resource, so don't just assume 🙈
  • sign — if we should add (+1) or subtract (-1) from the stat. that's it, that's the whole axis 😭

💖 DESCRIPTION 💖

Caller need to have the vm stats_lock held — like, this is the locked version, the name is not decorative, bestie 🔥

It's useful for when multiple update need to happen at the same time. so you grab the lock once, do all your little updates, and slay as a batch ⭐

fr fr: no stats_lock, no service. hold the lock or don't call it 🫶

🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c — plus the whole extended friend group, iykyk:

and that's the page, bestie 🧚 source: ./drivers/gpu/drm/amd/amdgpu, version vibes from October 2026, header amdgpu_vm_u...stats_locked(9) — go hold that lock 💜

📦 where this page comes from