[Bug 219492] New: amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[Bug 219492] New: amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219492

            Bug ID: 219492
           Summary: amdgpu: failed to write reg 28b4 wait reg 28c6 and
                    amdgpu: failed to write reg 1a6f4 wait reg 1a706
           Product: Drivers
           Version: 2.5
          Hardware: AMD
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: email2shubhra@gmail.com
        Regression: No

Created attachment 307209
  --> https://bugzilla.kernel.org/attachment.cgi?id=307209&action=edit
Kernel log for hardware

I get the below two kernel errors in log when I resume from hibernate and while
using DRI probably. I have latest amdgpu non-free firmware and mesa v24
installed.

amdgpu 0000:04:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
amdgpu 0000:04:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706

I have the following kernel parameter set to try and mitigate the above issue
but still the issue happens.

iommu=soft

The above issue does not occur during s2idle sleep/wakeup but only after
resuming from hibernate.

Attaching some kernel log if that would be of any help.

I found this issue with kernel version 6.6.x and 6.10.x

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[Bug 219492] amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219492

Shubhra Prakash Nandi (email2shubhra@gmail.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|                            |6.6.x and 6.10.x

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[Bug 219492] amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219492

Artem S. Tashkinov (aros@gmx.com) changed:

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

--- Comment #1 from Artem S. Tashkinov (aros@gmx.com) ---
Please first test 6.11.7 and if it's still reproducible, report here:
https://gitlab.freedesktop.org/drm/amd/-/issues

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[Bug 219492] amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219492

oyvinds@everdot.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |oyvinds@everdot.org

--- Comment #2 from oyvinds@everdot.org ---
This still happens with 6.12.11 and a AMD Ryzen 5 PRO 4650U.

[174713.452341] amdgpu 0000:06:00.0: amdgpu: failed to write reg 1a6f4 wait reg
1a706
[174721.488476] amdgpu 0000:06:00.0: amdgpu: failed to write reg 28b4 wait reg
28c6
[174721.494879] amdgpu 0000:06:00.0: amdgpu: failed to write reg 1a6f4 wait reg
1a706
[174721.501252] amdgpu 0000:06:00.0: amdgpu: failed to write reg 28b4 wait reg
28c6
[174721.507537] amdgpu 0000:06:00.0: amdgpu: failed to write reg 1a6f4 wait reg
1a706
[174780.330661] amdgpu 0000:06:00.0: amdgpu: failed to write reg 28b4 wait reg
28c6
[174780.337011] amdgpu 0000:06:00.0: amdgpu: failed to write reg 1a6f4 wait reg
1a706
[174780.360568] amdgpu 0000:06:00.0: amdgpu: failed to write reg 28b4 wait reg
28c6
[174780.367548] amdgpu 0000:06:00.0: amdgpu: failed to write reg 1a6f4 wait reg
1a706

It seems to be related to playing video with VAAPI in Firefox after
suspend/resume.

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[Bug 219492] amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219492

--- Comment #3 from Shubhra Prakash Nandi (email2shubhra@gmail.com) ---
Issue reported here - https://gitlab.freedesktop.org/drm/amd/-/issues/2347

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[Bug 219492] amdgpu: failed to write reg 28b4 wait reg 28c6 and amdgpu: failed to write reg 1a6f4 wait reg 1a706

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219492

--- Comment #4 from Shubhra Prakash Nandi (email2shubhra@gmail.com) ---
Since the issue is still not resolved. The below bug is the better one to
track.

https://gitlab.freedesktop.org/drm/amd/-/issues/4152

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