https://bugs.freedesktop.org/show_bug.cgi?id=56634
--- Comment #6 from Andy Furniss lists@andyfurniss.entadsl.com --- (In reply to comment #5)
Using kernel from linus's repo fixes this issue. Not sure if it is a "proper" fix, so I'll let you close the repoer if it should be closed.
(now I'm getting 40 fps in heaven , nice boost if we forget about the 3 fps thing)
etqw is also running normally again with drm-next kernel and current mesa/llvm.