[Bug 55500] [sna gen4] flickering rendering

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55500

--- Comment #36 from Chris Wilson <chris at chris-wilson.co.uk> ---
Zdenek, can you see if this reduces the majority of your flicker:

commit 2dbe7d91a7f15a3a9ddad696c5088ca98898fca2
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Dec 12 09:50:34 2012 +0000

    sna/gen4: Use the single-threaded SF w/a for spans as well

    Fixes the flickering seen in the fishtank demo, for example.

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