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
https://bugs.freedesktop.org/show_bug.cgi?id=100304
--- Comment #1 from Alex Deucher alexdeucher@gmail.com --- What chip is this?
https://bugs.freedesktop.org/show_bug.cgi?id=100304
--- Comment #2 from Alex Deucher alexdeucher@gmail.com --- does disabling runpm work around it?
https://bugs.freedesktop.org/show_bug.cgi?id=100304
Mike Lothian mike@fireburn.co.uk changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |mike@fireburn.co.uk
--- Comment #3 from Mike Lothian mike@fireburn.co.uk --- This is on Tonga in a prime setup
https://bugs.freedesktop.org/show_bug.cgi?id=100304
--- Comment #4 from Mike Lothian mike@fireburn.co.uk --- Yes setting amdgpu.runpm=0 fixes the issue - also reverting the commit allows me to boot
https://bugs.freedesktop.org/show_bug.cgi?id=100304
--- Comment #5 from Alex Deucher alexdeucher@gmail.com --- Created attachment 130399 --> https://bugs.freedesktop.org/attachment.cgi?id=130399&action=edit possible fix
This should fix the issue.
https://bugs.freedesktop.org/show_bug.cgi?id=100304
--- Comment #6 from Mike Lothian mike@fireburn.co.uk --- Thanks, that's working great for me
https://bugs.freedesktop.org/show_bug.cgi?id=100304
Alex Deucher alexdeucher@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |FIXED Status|NEW |RESOLVED
--- Comment #7 from Alex Deucher alexdeucher@gmail.com --- fix squashed into the original patch.
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