[espadrine]

> Maybe the 2 should ask Intel for some pointers on how to contribute to the kernel the right way.

Intel is not waiting for them to ask:

https://lists.freedesktop.org/archives/dri-devel/2016-Decemb...

> This is something you need to fix, or it'll stay completely painful forever. It's hard work and takes years, but here at Intel we pulled it off. We can upstream everything from a _very_ early stage (can't tell you how early). And we have full marketing approval for that. If you watch the i915 commit stream you can see how our code is chasing updates from the hw engineers debugging things.

(More specific advice follows.)