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

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

--- Comment #10 from Nicholas Kazlauskas nicholas.kazlauskas@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@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@daenzer.net>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@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/