[Bug 99030] [HSW, regression] transform feedback fails on Linux 4.8

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99030

--- Comment #5 from Kenneth Graunke <kenneth at whitecape.org> ---
Fixed by:

commit 2138347a45fa6dad1934b1c58a9e7d7f53194828
Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Fri Jan 6 00:09:53 2017 -0800

    i965: Properly flush in hsw_pause_transform_feedback().

    Fixes a number of transform feedback tests when run with Linux 4.8,
    which allows us to use the MI_LOAD_REGISTER_REG command, at which point
    we started using this new broken path.

    ES3-CTS.functional.transform_feedback.array_element.interleaved.lines.*
    and Piglit's arb_transform_feedback2/draw-auto are both fixed by this
    patch, for example.

    Thanks to Chris Wilson for catching this mistake!

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99030
    Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
    Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>

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