[Bug 107499] [CI][BAT] igt at drv_selftest@live_hugepages - dmesg-fail - igt_ppgtt_internal_huge failed with error -22

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107499

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

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

--- Comment #2 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit e6a59382924e2d007b554a2aebcd4445ebb01fef (HEAD -> drm-intel-next-queued,
drm-intel/drm-intel-next-queued)
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Mon Aug 6 15:46:04 2018 +0100

    drm/i915/selftests: Unconditionally do a chipset flush before emit_bb_start

    Experience teaches us over and over again that coherency on Baytrail
    requires the odd heavy hammer, and in particular clflush alone is not
    enough to guarrantee that writes from the CPU are picked up by the CS.
    Do as we do elsewhere and ensure we have an unconditional
    i915_gem_chipset_flush() after writing to memory and submitting a batch
    to HW.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107499
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Matthew Auld <matthew.auld at intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20180806144604.8346-1-chris@chris-wilson.co.uk

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