[Bug 107861] [CI][BAT] [byt full-ppgtt] igt at gem_exec* - fail - Failed assertion: !"GPU hung"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107861

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

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

--- Comment #7 from Chris Wilson <chris at chris-wilson.co.uk> ---
gem_exec_parallel/fds survived 48 hours on my byt-j1900 with

commit e2a13d1b24073fe183ebe858ebb4fc827faded56 (HEAD -> drm-intel-next-queued,
drm-intel/drm-intel-next-queued)
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Sep 10 14:08:08 2018 +0100

    drm/i915/ringbuffer: Reload PDs harder on byt/bcs

    Baytrail takes a little more convincing that it needs to actually reload
    its Page Directoy (ppGTT) before the context switch, so repeat it until
    it gets the message. Once again the arbitrary values here are
    empirically derived.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107861
    Testcase: igt/gem_exec_parallel/fds
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180910130808.10809-1-chris@chris-wilson.co.uk

hopefully the others fare just as well.

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