Comment # 2 on bug 107082 from Michel Dänzer

(In reply to Nicholas Kazlauskas from comment #1)
> This should be fixed with: https://patchwork.freedesktop.org/patch/233283/
> The fix is also availble if you use amd-staging-drm-next.

Since the regression happened in the 4.18 cycle, the fix needs to go to 4.18.