drivers/gpu/drm/amd/display/dc/hwss/dcn42
AMDGPU DCN 4.2 Display Hardware Sequencer Support Code
Internal support code inside AMD's display core (DC) component that programs the hardware sequencing steps for the DCN 4.2 generation of AMD GPU display engines. It is part of the broader amdgpu graphics driver and handles low-level display pipeline state transitions on recent AMD Radeon hardware.
not-a-driver
recommendation
This is not actually a driver directory; it is a subcomponent of the AMDGPU display stack containing hardware-sequencing helper code for the DCN 4.2 display core block found in newer AMD GPUs. It is built into the larger amdgpu driver rather than loaded on its own.
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codex reasoning notes (technical)
Not a driver directory: contains DCN 4.2 display core hardware-sequencing support code inside the AMDGPU display stack, not a standalone kernel-bound hardware driver.