While playing ARK: Survival Evolved, I ran into image corruption and can
reproduce it easy in game, it came down to this commit:

commit 46b2b3bda8d962fce02838e09c742ac06fbec45f
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Thu Jul 16 13:17:14 2015 +0200

    radeonsi: don't change pipe_resource in resource_copy_region

    Copied from r600g. pipe_resource can be shared by multiple threads, so we
    shouldn't change it.

    Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>


Reverting this fixed corruption seen, I've attached a picture of the corruption
noticed, but it manifests itself in striped transparency of certain objects.

See attachment of image