Comment # 34 on bug 84500 from Dieter Nützel

(In reply to Dieter Nützel from comment #33)
> Hello Alexandre,
> 
> maybe you can take a look, here to speed things up?
> https://bugzilla.kernel.org/show_bug.cgi?id=86891
> Comment #3 and #4.

I'll testing it on RV730 AGP
with git revert of

59bc1d89d6a4d67c94a9b70fa81bda1d5b04f0cb is the first bad commit
commit 59bc1d89d6a4d67c94a9b70fa81bda1d5b04f0cb
Author: Lauri Kasanen <cand@gmx.com>
Date:   Sun Apr 20 20:29:33 2014 +0300

    drm/radeon: Inline r100_mm_rreg, -wreg, v3

Now.