[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

--- Comment #3 from Konstantin A. Lepikhov <lakostis at altlinux.org> ---
(In reply to Arek Ruśniak from comment #0)
> Created attachment 126204 [details]
> 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

Same behavior but on PREEMPT kernel even without mentioned patch. Just to
clarify that it could be more general problem than locking in this particular
place.

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