dce_v8_0_dram_bandwidth(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dce_v8_0_dram_bandwidth ✨

Okay so bestie, welcome to the Kernel API Manual 🎀 — yes we're literally in the kernel docs and yes it's giving main character energy. Today's episode: dce_v8_0_dram_bandwidth(9), which is lowkey just a little function that tells you how much dram bandwidth you have. Iconic. Let's go 💅

🌸 NAME 🌸

dce_v8_0_dram_bandwidth — get the dram bandwidth 🫶

⭐ SYNOPSIS ⭐

u32 dce_v8_0_dram_bandwidth (struct dce8_wm_params *wm );

That's it. One arg. One u32 coming back at you. Slay ✨

🦋 ARGUMENTS 🦋

  • wm — the watermark calculation data 💖 like, this is the struct that carries all the info the function needs to do its little math moment. It's a struct dce8_wm_params *, no cap.

🌈 DESCRIPTION 🌈

So what does it actually do? It calculates the raw dram bandwidth (CIK) 🔥.

And it's used for those display watermark bandwidth calculations — you know, the whole thing where the display needs to know how much bandwidth it's working with before it can decide on watermarks. Veryimportant, very behind-the-scenes, very "you don't think about me but I'm carrying the whole team" 💀

Returns the dram bandwidth in MBytes/s 👑 so like, megabytes per second, that's the unit, don't forget it.

💜 SEE ALSO 💜

The kernel file lives right here, bestie:

  • ./drivers/gpu/drm/amd/amdgpu/dce_v8_0.c

And here's the whole friend group — the entire dce_v8_0 family reunion, plus a couple of CIK cousins 🧚:

Like, that is a long list and honestly? Obsessed. Go read them all, iykyk 📚

Fr fr though: this page came from ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026. Mark your calendar bestie 🗓️💖

Okay bye, go calculate some bandwidth, ily 🫶✨🍓

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