with:
radeonsi: add the htile buffer to the CS ioctl buffer list
radeonsi: set CB_DISABLE if the color mask is 0

things get better. No GPU lockups, no artifacts (xonotic/unigine-valley/serious
sam 3/stalker(wine)) unigine-sanctuary still shows freaky shadows.
I don't try skyrim but if you need i can install it.
It looks like performance dropped a little bit, but not much and nothing hangs
my PC