[Bug 97594] [amdgpu SI] "drm/amd/amdgpu: Add GRBM lock to various SI functions" breaks amdgpu support for SI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=97594

            Bug ID: 97594
           Summary: [amdgpu SI] "drm/amd/amdgpu: Add GRBM lock to various
                    SI functions" breaks amdgpu support for SI
           Product: DRI
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: arek.rusi at gmail.com

Created attachment 126204
  --> https://bugs.freedesktop.org/attachment.cgi?id=126204&action=edit
dmesg for first bad commit

With this commit displays off during loading amdgpu, sysrq don't work, boot is
stopped. 
When i reverted it, amdgpu works as always.

dmesg is silent

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