There actually exists at least one GPL-licensed GPU core (GPLGPU), but it's based on a 90s PC 3D accelerator that's really just not that good.
I believe the team behind LibreSOC is also working on a 3D processor, but I don't know how far along they are.
However, if a vendor instead ships a decent framebuffer and high-performance vector unit, I think LLVMpipe would not be a problem for most RPi-equivalent use cases, either light desktop use or server use (especially the latter!)
I believe the team behind LibreSOC is also working on a 3D processor, but I don't know how far along they are.
However, if a vendor instead ships a decent framebuffer and high-performance vector unit, I think LLVMpipe would not be a problem for most RPi-equivalent use cases, either light desktop use or server use (especially the latter!)