drivers/gpu/drm/amd/display/dc/hubbub/dcn35

AMD DCN 3.5 HUBBUB display engine helpers

Internal helper code within AMD's Display Core that programs the HUBBUB memory-arbitration block on DCN 3.5 display hardware, used by integrated graphics in AMD's Ryzen APUs (such as Phoenix and Hawk Point laptop processors released around 2023–2024). It handles framebuffer memory requests and bandwidth arbitration between display pipes.

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

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recommendation

This is not actually a standalone driver; it is an internal subcomponent of AMD's amdgpu display core, implementing the HUBBUB (Hub Bottleneck Unit) block for the DCN 3.5 display hardware found in recent AMD APUs. It ships as part of the larger AMD GPU driver and is not loaded or maintained independently.

repository signals

2 files

836 source lines

7 commits, 5y

+847 / −11 lines added / removed, 5y

7 authors, 5y

monthly commits · 2021-04-21 → 2026-04-21 · 7 total · active in 6/61 months

sources

No sources cited.

codex reasoning notes (technical)

Not a driver directory: DCN3.5 hubbub block implementation inside AMD display core, i.e. internal amdgpu/display helper code rather than a standalone kernel-bound hardware driver.