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DMCU (Display Microcontroller Unit) is a GPU chip involved in eDP features like Adaptive Backlight Modulation and Panel Self Refresh. DMCU has two pieces of firmware: the ERAM and the interrupt vectors, which must be loaded seperately. To this end, the DMCU firmware has a custom header and parsing logic similar to MEC, to extract the two ucodes from a single struct firmware. Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>