[Bug 90212] [BDW-Y regression] Screen flicker when start X with FBC enable

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90212

--- Comment #4 from ye.tian <yex.tian at intel.com> ---
Bisect shows, the first bad commit is dbef0f1.

commit dbef0f15b5c83231dacb214dbf9a6dba063ca21c
Author:     Paulo Zanoni <paulo.r.zanoni at intel.com>
AuthorDate: Fri Feb 13 17:23:46 2015 -0200
Commit:     Daniel Vetter <daniel.vetter at ffwll.ch>
CommitDate: Tue Mar 17 22:29:56 2015 +0100

    drm/i915: add frontbuffer tracking to FBC

    Kill the blt/render tracking we currently have and use the frontbuffer
    tracking infrastructure.

    Don't enable things by default yet.

    v2: (Rodrigo) Fix small conflict on rebase and typo at subject.
    v3: (Paulo) Rebase on RENDER_CS change.
    v4: (Paulo) Rebase.
    v5: (Paulo) Simplify: flushes don't have origin (Daniel).
                Also rebase due to patch order changes.

    Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
    Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
    Reviewed-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

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