Wouldn't it be possible to move most of this code out of the kernel? I'm not sure what's in it, but my guess what you actually need to have in the kernel is buf

Wouldn't it be possible to move most of this code out of the kernel? I'm not sure what's in it, but my guess what you actually need to have in the kernel is buffer allocation, memory protection and command submission code, and some modesetting/graphics display specific bits so you can display some basic graphics without the userland.