It's been 2 years and ... unfortunately the driver still does not support non-x86.
i915's never getting rearchitected for non-x86, but aarch64 reportedly runs Arc with a few caveats using Intel's
xe driver. There's nothing it offers that my W6600 doesn't do well enough for my needs at this point, but I'd like to think it'll work since Power9/Raptor's PCIe implementation's apparently less warty.
