drivers/gpu/drm/amd/display/dc/hubbub/dcn31

AMD DCN 3.1 HUBBUB Display Core Component

Internal building block of AMD's Display Core (DC) library that programs the HUBBUB (Hub Bottleneck Unit) hardware on DCN 3.1-generation GPUs, found in Ryzen 6000-series APUs (Rembrandt) and related parts. HUBBUB arbitrates memory bandwidth between the display pipes and the rest of the GPU.

not-a-driver conf=1.00 deploy=none replacement=none subsystem=gpu category=not-a-driver

100%

recommendation

This is not a standalone driver but a sub-component of the amdgpu display stack, providing the DCN 3.1-specific implementation of one functional block. It has no independent probe path and ships only as part of the larger AMD GPU driver, so it falls outside the scope of driver-level keep/remove decisions.

repository signals

2 files

1,243 source lines

6 commits, 5y

+1,249 / −6 lines added / removed, 5y

6 authors, 5y

monthly commits · 2021-04-21 → 2026-04-21 · 6 total · active in 5/61 months

sources

No sources cited.

codex reasoning notes (technical)

Not a driver directory: DCN3.1 hubbub block implementation inside the AMD display core, not a standalone kernel-bound hardware driver with its own probe/bind entry points.