On Sun, 27 Jun 2021 13:49:25 +0900, Yuya Nishihara wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=213599 And it's been fixed by the following commits: * fea853aca321 Revert "drm/amdgpu/gfx10: enlarge CP_MEC_DOORBELL_RANGE_UPPER to cover full doorbell." * 1bd81429d53d Revert "drm/amdgpu/gfx9: fix the doorbell missing when in CGPG issue."