dce_v6_0_dat...rn_bandwidth(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dce_v6_0_data_return_bandwidth — Kernel API Manual ✨

okay bestie, so this is a Kernel API Manual page for dce_v6_0_data_return_bandwidth(9) — yes the title got chopped in the header like dce_v6_0_dat...rn_bandwidth(9) (classic truncation moment, the terminal just could NOT hold all those characters 😭), but the actual function name is dce_v6_0_data_return_bandwidth and no, we are not shortening it, it's iconic as-is. it lives in the AMDGPU DRM space, and we're about to get into it 💖

🌸 NAME 🌸

dce_v6_0_data_return_bandwidth — literally just: get the data return bandwidth. that's the whole job. 💅

🎀 SYNOPSIS 🎀

u32 dce_v6_0_data_return_bandwidth (struct dce6_wm_params *wm );

so she takes one pointer and returns a u32, periodt ✨

🦋 ARGUMENTS 🦋

  • wm — the watermark calculation data. that's your whole input, bestie, everything she needs is in there 🫶

⭐ DESCRIPTION ⭐

okay so here's the tea: this function calculates the data return bandwidth used for display, and this is specifically the CIK path, iykyk 🔥

it's used for display watermark bandwidth calculations — so it's lowkey feeding the whole watermark pipeline 🧚

and what it hands back is the data return bandwidth, in MBytes/s 👑 (yes, capital M, capital B, per second, we're being precise about it 💜)

no cap, that's the entire vibe: you give it wm, it does its watermark math and returns a number in MBytes/s. slay. 🌈

💀 SEE ALSO 💀

the kernel file herself, first of all:

  • ./drivers/gpu/drm/amd/amdgpu/dce_v6_0.c

then the whole friend group, in order, no one left out 🙈:

like, the bandwidth squad is THOROUGH and we respect every single one of them 🍓

no warnings, no bugs, no exit statuses on this one — she's a pure calculation function and she's thriving 💅

and that's the page!! 🎀 source/version is ./drivers/gpu/drm/amd/amdgpu, dated October 2026, under the dce_v6_0_dat...rn_bandwidth(9) header — mwah, go read some bandwidth docs bestie, ily 🫶✨💜

📦 where this page comes from