https://bugs.freedesktop.org/show_bug.cgi?id=100304

            Bug ID: 100304
           Summary: [bisected] Kernel oops on startup
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: mike@fireburn.co.uk

Created attachment 130353
  --> https://bugs.freedesktop.org/attachment.cgi?id=130353&action=edit
Screen shot

Bisected back to:

2d38d25554b739b50eec254205f769580751fb02 is the first bad commit
commit 2d38d25554b739b50eec254205f769580751fb02
Author: David Panariti <David.Panariti@amd.com>
Date:   Mon Mar 13 13:33:18 2017 -0400

    drm/amdgpu: Switch baremetal to use KIQ for compute ring management.

    KIQ is the Kernel Interface Queue for managing the MEC.  Rather than
setting
    up rings via direct MMIO of ring registers, the rings are configured via
    special packets sent to the KIQ.  The allows the MEC to better manage
shared
    resources and certain power events.

    Signed-off-by: David Panariti <David.Panariti@amd.com>
    Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
    Acked-by: Tom St Denis <tom.stdenis@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com

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