Internal building-block code for the HUBBUB (hub bandwidth and buffering) unit inside AMD's first-generation Display Core Next hardware, as found on Raven Ridge and other Vega-era APUs from around 2017. It is one piece of the larger amdgpu display engine, not something users load or interact with on its own.
This is not actually a driver directory; it is a sub-component of the AMD amdgpu display core (DC) that handles memory request arbitration for DCN 1.0 hardware. It only ships as part of the broader amdgpu driver and has no independent lifecycle of its own, so the keep/remove question does not apply at this level.
repository signals
2files
1,490source lines
6commits, 5y
+1,514 / −24lines added / removed, 5y
5authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 6 total · active in 6/61 months
sources
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codex reasoning notes (technical)
Not a driver directory: internal AMD DCN1.0 display-pipeline hubbub block implementation within amdgpu/display, not a standalone kernel-bound hardware driver.