[Bug 101080] [APL/SKL/BDW] drv_selftest some subtests are failing "cannot allocate memory"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101080

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> ---
commit b5891fb520f742ce48b097c6b8a0b2db1e2bb979
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Sep 14 17:22:40 2017 +0100

    drm/i915/selftests: Disable iommu for the mock device

    On some machines, the iommu cannot allocate a domain for the mock device
    causing the dma_map_sg() to fail, and the selftest to fail with -ENOMEM.
    For the mock selftests, we are using a fake device and do not care about
    iommu; so convince intel_iommu to treat us as a dummy device with an
    identity mapping (and no iommu domain).

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101080
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20170914162240.18310-1-chris@chris-wilson.co.uk
    Tested-by: Elizabeth De La Torre Mena
<elizabethx.de.la.torre.mena at intel.com>
    Reviewed-by: Matthew Auld <matthew.auld at intel.com>

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