[Bug 109628] WARNING at dcn10_hw_sequencer.c:868 dcn10_verify_allow_pstate_change_high()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=109628

--- Comment #10 from Nicholas Kazlauskas <nicholas.kazlauskas at amd.com> ---
(In reply to Johannes Hirte from comment #9)
> git bisect points me to 
> 
> commit df8368be1382b442384507a5147c89978cd60702 (refs/bisect/bad)
> Author: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
> Date:   Wed Feb 27 12:56:36 2019 -0500
> 
>     drm/amdgpu: Bump amdgpu version for per-flip plane tiling updates
>     
>     To help xf86-video-amdgpu and mesa know DC supports updating the
>     tiling attributes for a framebuffer per-flip.
>     
>     Cc: Michel Dänzer <michel at daenzer.net>
>     Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
>     Acked-by: Alex Deucher <alexander.deucher at amd.com>
>     Reviewed-by: Marek Olšák <marek.olsak at amd.com>
>     Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> 
> 
> Does this make any sense?

Yes, this is the commit that enabled mesa and xf86-video-amdgpu to use DCC for
scanout.

I recently fixed a bug where these warnings could be generated in some use
sequences (notably immediate flipping).

Please try amd-staging-drm-next or apply the following series to your kernel:

https://patchwork.freedesktop.org/series/64614/

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