[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=92270

            Bug ID: 92270
           Summary: Radeon R7 M260/M265 -  *ERROR* amdgpu: ring 0 test
                    failed (scratch(0xC040)=0xCAFEDEAD)
           Product: DRI
           Version: XOrg git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: edersondisouza@hotmail.com

Created attachment 118649
  --> https://bugs.freedesktop.org/attachment.cgi?id=118649&action=edit
dmesg

Hello,

I have a Dell Inspiron with a Radeon R7 M260/M265 [Topaz XT] - as reported by
lspci, and I'm facing problems with GPU initialisation, rendenring it unusable,
it is not listed on `xrandr --listproviders`, for instance, althoug the driver
is properly loaded. Attached are `dmesg` and `lspci -k`. Please let me know if
there's something else I can do to help.

Thanks for any help,

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=92270

--- Comment #1 from edersondisouza@hotmail.com ---
Created attachment 118650
  --> https://bugs.freedesktop.org/attachment.cgi?id=118650&action=edit
lspci -k

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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https://bugs.freedesktop.org/show_bug.cgi?id=92270

--- Comment #2 from Christian König <deathsimple@vodafone.de> ---
I wouldn't call this "properly loaded", the kernel driver completely fails to
initialize the hardware and unloads itself after realizing that this won't
work.

Good to know that unloading the driver works, but I don't have any idea what's
going wrong here.

@Alex: How well did we already tested Topaz? If not we might want to disable
the PCI-ID for now.

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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--- Comment #3 from Ederson <edersondisouza@hotmail.com> ---
Well, I've said "properly loaded" because `amdgpu` is listed on `lsmod`.

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jrafante89@gmail.com

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
*** Bug 91330 has been marked as a duplicate of this bug. ***

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 118719
  --> https://bugs.freedesktop.org/attachment.cgi?id=118719&action=edit
Mark iceland as experimental

(In reply to Christian König from comment #2)
> 
> @Alex: How well did we already tested Topaz? If not we might want to disable
> the PCI-ID for now.

We haven't really tested them much.  How about the attached patch?

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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--- Comment #6 from Christian König <deathsimple@vodafone.de> ---
(In reply to Alex Deucher from comment #5)
> Created attachment 118719 [details] [review]
> Mark iceland as experimental
> 
> (In reply to Christian König from comment #2)
> > 
> > @Alex: How well did we already tested Topaz? If not we might want to disable
> > the PCI-ID for now.
> 
> We haven't really tested them much.  How about the attached patch?

Yeah, probably a good idea until we have time to fix those.

Patch is Reviewed-by: Christian König <christian.koenig@amd.com>

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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--- Comment #7 from René Linder <rene.linder@lihaso.ch> ---
Is there any Progress with this Bug? I've a Notebook here from a project, where
the Official Driver could not be used currently (Xorg 1.18)

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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--- Comment #8 from Chris <chris.tarazi@yahoo.com> ---
I'm also experiencing this bug with a Radeon 6850 and GNOME 3 desktop, on
following systems:

Ubuntu 14.04 with 3.19 kernel and fglrx drivers.
openSUSE Leap 42.1 with open source drivers.

It happens when I resume from suspend. System hangs and switching to tty1
displays all the errors such as "ring 0 test failed", etc. From there, I have
to shutdown the system if I want to use it.

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[Bug 92270] Radeon R7 M260/M265 - *ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)

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--- Comment #9 from Michel Dänzer <michel@daenzer.net> ---
(In reply to Chris from comment #8)
> I'm also experiencing this bug with a Radeon 6850 [...]

Different GPU => file your own report please.

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--- Comment #10 from Ederson <edersondisouza@hotmail.com> ---
I can confirm that issue is now gone, using Linux 4.5 (which contains
dba280b20bfd1c2bed8a07ce3f75a6da8ba7d247). Who does take care of closing this
issue?

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Michel Dänzer <michel@daenzer.net> changed:

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

--- Comment #11 from Michel Dänzer <michel@daenzer.net> ---
Resolving per comment 10, thanks for the followup.

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