https://bugs.freedesktop.org/show_bug.cgi?id=104624

            Bug ID: 104624
           Summary: [regression, vega] Running DOOM causes *ERROR*
                    amdgpu_dm_commit_planes: acrtc 2, already busy WARNING
                    amdgpu_dm_atomic_commit_tail and prepare_flip_isr
           Product: DRI
           Version: DRI git
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: vedran@miletic.net

Created attachment 136717
  --> https://bugs.freedesktop.org/attachment.cgi?id=136717&action=edit
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.

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