[Bug 110228] [cfl] GPU hang when running UE4Editor

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110228

Jason Ekstrand <jason at jlekstrand.net> changed:

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

--- Comment #43 from Jason Ekstrand <jason at jlekstrand.net> ---
Fixed in the kernel:

commit 9d7b01e93526efe79dbf75b69cc5972b5a4f7b37 (HEAD -> drm-intel-next-queued,
drm-intel/drm-intel-next-queued)
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Sep 4 11:07:07 2019 +0100

    drm/i915: Restore relaxed padding (OCL_OOB_SUPPRES_ENABLE) for skl+

    This bit was fliped on for "syncing dependencies between camera and
    graphics". BSpec has no recollection why, and it is causing
    unrecoverable GPU hangs with Vulkan compute workloads.

    From BSpec, setting bit5 to 0 enables relaxed padding requirements for
    buffers, 1D and 2D non-array, non-MSAA, non-mip-mapped linear surfaces;
    and *must* be set to 0h on skl+ to ensure "Out of Bounds" case is
    suppressed.

    Reported-by: Jason Ekstrand <jason at jlekstrand.net>
    Suggested-by: Jason Ekstrand <jason at jlekstrand.net>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110998
    Fixes: 8424171e135c ("drm/i915/gen9: h/w w/a: syncing dependencies between
camera and graphics")
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Tested-by: denys.kostin at globallogic.com
    Cc: Jason Ekstrand <jason at jlekstrand.net>
    Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
    Cc: <stable at vger.kernel.org> # v4.1+
    Reviewed-by: Mika Kuoppala <mika.kuoppala at linux.intel.com>
    Link:
https://patchwork.freedesktop.org/patch/msgid/20190904100707.7377-1-chris@chris-wilson.co.uk

Solves the immediate test case.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20190912/d6bc1c36/attachment.html>