[Mesa-dev] [Bug 91254] (regresion) video using VA-API on Intel slow and freeze system with mesa 10.6 or 10.6.1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91254

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #19 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 4e5752e2b78243a71766538f62ca0a80488047a7
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Aug 23 09:24:57 2015 +0100

    i965: Always re-emit the pipeline select during invariant state emission

    On the older platforms where we don't have logical contexts preserving
    state across batches, we emit the invariant state setup on every batch
    using the brw_invariant_state atom. This includes the pipeline selection
    which is cached with the introduction of

    commit 0e0e23ef537c9add672ff322f34e129a07edc55e
    Author: Jordan Justen <jordan.l.justen at intel.com>
    Date:   Wed Apr 22 11:43:50 2015 -0700

        i965/state: Emit pipeline select when changing pipelines

    However, we do not reset the cache between batches on context-less
    platforms resulting in us not setting the pipeline selection and can
    cause GPU hangs if a media pipelined was loaded in the meantime (e.g.
    mixing mplayer/gstreamer using libva and gnome-shell). A simple solution
    is to just forcibly re-emit the pipeline select along with the invariant
    state and reset the cache at that point.

    Reported-and-tested-by: Tomasz C. <tomaszc at o2.pl>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91254
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Cc: Jordan Justen <jordan.l.justen at intel.com>
    Cc: Kenneth Graunke <kenneth at whitecape.org>
    Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
    Cc: "10.6 11.0" <mesa-stable at lists.freedesktop.org>

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