[Bug 85354] [BYT/BSW]igt/gem_userptr_blits/dmabuf-sync Bus error

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85354

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

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

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 18cb650318bb2c910f95d7c7df6625110ed1a590
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Oct 23 07:55:54 2014 +0100

    igt/gem_userptr_blits/dmabuf: Provide partial coverage on !llc platforms

    Without LLC, we cannot assume coherency between system RAM and the GTT.
    If we try to use the GTT with snooped memory, the machine may lock up,
    so the kernel prevents us from doing so, causing the test to fail.
    However, we still do want to verify that we can access the userptr
    through a dmabuf, so just check that we can make a copy from it using
    the GPU and ignore the GTT cross-checking.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85354
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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