[Bug 94118] [KBL] kms_frontbuffer_tracking / fbcpsr-farfromfence and fbc-farfromfence fail

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94118

--- Comment #3 from Paulo Zanoni <przanoni at gmail.com> ---
(In reply to Chris Wilson from comment #2)
> (In reply to Paulo Zanoni from comment #1)
> > Please try with an IGT with the following patch:
> > 
> > https://cgit.freedesktop.org/xorg/app/intel-gpu-tools/commit/
> > ?id=b87188795e9fda89c7e376726283a63817e83c60
> > 
> > If it works, then we can close the bug.
> 
> Or we could fix the kernel. The only complication is handling the 90 degree
> transform - and we could punt that until the next patch.

The original problem was that skylake_update_primary_plane() didn't implement
the offset trick like the previous platforms, which called
intel_compute_tile_offset(). There was even a patch:

https://patchwork.freedesktop.org/patch/60244/

I didn't sync with Ville about this again, but I see he's been patching this
area of the code recently.

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