[Bug 108085] Intel GeminiLake corruption at top of screen caused by fbc

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108085

--- Comment #16 from Daniel Drake <dan at reactivated.net> ---
Even though it's for a different SoC I checked on a few details found in
https://www.x.org/docs/intel/SKL/rev01/intel-gfx-prm-osrc-skl-vol16-workarounds.pdf 

0529: enabled the existing i915 codepath on GLK, no change
0562: FBC Watermark Disable is already set
0622: don't know how to check this
0851: don't know how to check this
0859: DISP_FBC_MEMORY_WAKE is already set
0873: added ILK_DPFC_NUKE_ON_ANY_MODIFICATION, no change
0883: ILK_DPFC_DISABLE_DUMMY0 is already set, DISP_FBC_MEMORY_WAKE is already
set
0884: i915 implementation only affects PSR codepath but this platform doesn't
support PSR

So no progress there, further suggestions very welcome...

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