Internal source code for the HUBBUB (hub bandwidth and buffer) hardware block found in AMD's Display Core Next 3.2 generation, used in modern Radeon and Ryzen integrated graphics. It manages memory bandwidth arbitration and buffering between system memory and the display pipeline.
This is not actually a standalone driver directory; it is one small component inside the larger amdgpu Display Core (DC) subsystem that powers all modern AMD GPUs. It cannot be evaluated for keep-or-remove on its own because it is an integral piece of the AMD display stack shared by current hardware.
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2files
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5authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 6 total · active in 5/61 months
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codex reasoning notes (technical)
Not a driver directory: DCN3.2 hubbub block implementation inside the amdgpu DC display stack, not a standalone kernel-bound hardware driver.