[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=109790

            Bug ID: 109790
           Summary: [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR*
                    radeon: ring 0 test failed
                    (scratch(0x850C)=0xCAFEDEAD)
           Product: DRI
           Version: DRI git
          Hardware: ARM
                OS: All
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: baopeng88_com@163.com

Created attachment 143482
  --> https://bugs.freedesktop.org/attachment.cgi?id=143482&action=edit
error_dmesg

We enabled the Radeon OLAND series of graphics cards on ARM, very old graphics
cards,
The kernel is a 4.14 kernel and there is a problem with GPU acceleration not
being enabled:
The kernel initialization log is as follows, there are 2 errors, one is radeon
0000:43:00.0: failed VCE resume (-110).
One is [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed
(scratch(0x850C)=0xCAFEDEAD), this error causes the GPU acceleration function
to be turned off.
Can you ask me what it is, or how to position it next?
thank you.

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[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=109790

--- Comment #1 from baopeng <baopeng88_com@163.com> ---
Created attachment 143483
  --> https://bugs.freedesktop.org/attachment.cgi?id=143483&action=edit
lspci_msg

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[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=109790

--- Comment #2 from baopeng <baopeng88_com@163.com> ---
Created attachment 143484
  --> https://bugs.freedesktop.org/attachment.cgi?id=143484&action=edit
uname_msg

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[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=109790

--- Comment #3 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to baopeng from comment #0)
> Created attachment 143482 [details]
> error_dmesg
> 
> We enabled the Radeon OLAND series of graphics cards on ARM, very old
> graphics cards,
> The kernel is a 4.14 kernel and there is a problem with GPU acceleration not
> being enabled:
> The kernel initialization log is as follows, there are 2 errors, one is
> radeon 0000:43:00.0: failed VCE resume (-110).

This one is harmless.

> One is [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed
> (scratch(0x850C)=0xCAFEDEAD), this error causes the GPU acceleration
> function to be turned off.
> Can you ask me what it is, or how to position it next?

For this one, make sure you have this patch:
https://cgit.freedesktop.org/drm/drm/commit/?id=e02f5c1bb2283cfcee68f2f0feddcc06150f13aa
and also make sure your ARM platform supports cache coherence as required by
the PCI spec.

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[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=109790

Christian König <christian.koenig@amd.com> changed:

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

--- Comment #4 from Christian König <christian.koenig@amd.com> ---
And also please try an up to date kernel. We certainly won't fix any
architecture specific problems in 4.14 any more.

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[Bug 109790] [ 11.594966] [drm:r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x850C)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=109790

--- Comment #5 from Michel Dänzer <michel@daenzer.net> ---
*** Bug 109789 has been marked as a duplicate of this bug. ***

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