The ASpeed “AST” DRM driver that is for use with ASpeed BMCs on server platforms for display capabilities is preparing to see DMA-BUF and PRIME sharing support. This is useful so the ASpeed BMC can see the screen contents even if the server is relying on a discrete GPU rather than the baseboard management controller’s monitor output…

Source: Phoronix – ASpeed DRM Driver Adding DMA-BUF/PRIME Sharing For Use With Servers Having dGPUs