https://bugs.freedesktop.org/show_bug.cgi?id=84662
--- Comment #27 from Michel Dänzer michel@daenzer.net --- Created attachment 107544 --> https://bugs.freedesktop.org/attachment.cgi?id=107544&action=edit drm/radeon: Try placing NO_CPU_ACCESS BOs outside of CPU accessible VRAM
Please try current Mesa with no patches except for the two I just attached, plus this kernel patch together with the previous kernel patch.