amdgpu_fence...aled_time_us(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_fence...aled_time_us(9) — like, the Kernel API Manual, bestie ✨

Okay so picture this: you're deep in the Kernel API Manual, flipping through pages, and you land on amdgpu_fence_last_unsignaled_time_us(9). Iconic. Sit down, grab a strawberry 🍓, and let me tell you everything about it. No cap, we're getting into the fence lore.

✨ NAME ✨

amdgpu_fence_last_unsignaled_time_us — literally the time the fence was emitted up until now 🕐💫

🎀 SYNOPSIS 🎀

u64 amdgpu_fence_last_unsignaled_time_us (struct amdgpu_ring *ring );

That's it. That's the whole vibe. It hands you back a u64. Slay.

🌸 ARGUMENTS 🌸

  • ring — the ring that the fence is associated with 🌀 like, the fence's main character context, y'know?

🦋 DESCRIPTION 🦋

So here's what it does, and I need you to pay attention because it's lowkey cute:

It finds the earliest fence that's still unsignaled until now — the oldest one still waiting, essentially — and then it calculates the time delta between the moment that fence was emitted and now. ⏱️✨

That's the whole thing. Find the earliest unsignaled fence, measure emitted-time → now. Periodt. 💅

👑 SEE ALSO 👑

The kernel file lives at ./drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c — go read it, iykyk 📖

And honestly the whole friend group is here, so let me introduce the squad:

Not me listing the entire group chat 💀 but fr fr, they're all worth a read 🫶

🧚 and that's the page!! go forth and measure your fences, bestie 🌈

Okay bye, love you, this came from ./drivers/gpu/drm/amd/amdgpu, October 2026 edition ⭐🔥👑

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