[Bug 100304] [bisected] Kernel oops on startup

[bugzilla-daemon]

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

Alex Deucher  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|NEW |RESOLVED

--- Comment #7 from Alex Deucher  ---
fix squashed into the original patch.

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[Bug 100304] [bisected] Kernel oops on startup

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

--- Comment #6 from Mike Lothian  ---
Thanks, that's working great for me

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[Bug 100304] [bisected] Kernel oops on startup

[bugzilla-daemon]

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

--- Comment #5 from Alex Deucher  ---
Created attachment 130399
  --> https://bugs.freedesktop.org/attachment.cgi?id=130399=edit
possible fix

This should fix the issue.

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[Bug 100304] [bisected] Kernel oops on startup

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

--- Comment #4 from Mike Lothian  ---
Yes setting amdgpu.runpm=0 fixes the issue - also reverting the commit allows
me to boot

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[Bug 100304] [bisected] Kernel oops on startup

[bugzilla-daemon]

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

Mike Lothian  changed:

   What|Removed |Added

 CC||m...@fireburn.co.uk

--- Comment #3 from Mike Lothian  ---
This is on Tonga in a prime setup

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[Bug 100304] [bisected] Kernel oops on startup

[bugzilla-daemon]

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

--- Comment #2 from Alex Deucher  ---
does disabling runpm work around it?

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[Bug 100304] [bisected] Kernel oops on startup

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

--- Comment #1 from Alex Deucher  ---
What chip is this?

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[Bug 100304] [bisected] Kernel oops on startup

[bugzilla-daemon]

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: m...@fireburn.co.uk

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

Bisected back to:

2d38d25554b739b50eec254205f769580751fb02 is the first bad commit
commit 2d38d25554b739b50eec254205f769580751fb02
Author: David Panariti 
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 
Reviewed-by: Alex Deucher 
Acked-by: Tom St Denis 
Signed-off-by: Alex Deucher