[regression, vega] Running DOOM causes *ERROR* amdgpu_dm_commit_planes: acrtc 2, already busy WARNING amdgpu_dm_atomic_commit_tail and prepare_flip_isr

Submitted by Vedran Miletić

Assigned to Default DRI bug account

Link to original bug (#104624)

Description

Created attachment 136717
dmesg

I'm using

43:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XT [Radeon RX Vega 64] [1002:687f] (rev c1)

and running DOOM (2016) over Wine 2.20, Mesa 17.3.0-rc3, LLVM 5.0.1, kernel 4.15.0-0.rc7.git2.1.fc28.x86_64. When the modeset from the game happens, I get:

[ 176.242980] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] ERROR [PLANE:38:plane-2] flip_done timed out
[ 176.243071] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] ERROR amdgpu_dm_commit_planes: acrtc 2, already busy

and two WARNINGs. The machine can be rebooted normally over SSH. Full dmesg is attached.

This is a regression, DOOM used to work.

Attachment 136717, "dmesg":
file_104624.txt