[Bug 209015] New: Clocks are no longer reported for R9 390 GPU

[Bug 209015] New: Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

            Bug ID: 209015
           Summary: Clocks are no longer reported for R9 390 GPU
           Product: Drivers
           Version: 2.5
    Kernel Version: 5.8
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: henryjm11106@gmail.com
        Regression: No

After updating to Linux 5.8, mclk and sclk are always reported as 0MHz on my
AMD R9 390. this is consistent after a couple of 5.8 kernel updates with both
linux-zen and generic linux. it was fine on the last 5.7 release, and going
back to 5.4 LTS clocks are reported correctly as of now. issue is present with
both AMDGPU and Radeon drivers

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[Bug 209015] Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

Alex Deucher (alexdeucher@gmail.com) changed:

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

--- Comment #1 from Alex Deucher (alexdeucher@gmail.com) ---
Please attach your dmesg output and Xorg log (if using X).

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[Bug 209015] Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

--- Comment #2 from HenryJiM (henryjm11106@gmail.com) ---
Created attachment 292149
  --> https://bugzilla.kernel.org/attachment.cgi?id=292149&action=edit
full dmesg for 5.8

Comparing with the 5.4 output, one difference I noticed is "[    3.795074]
amdgpu 0000:29:00.0: amdgpu: Trusted Memory Zone (TMZ) feature not supported"

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[Bug 209015] Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

--- Comment #3 from HenryJiM (henryjm11106@gmail.com) ---
Created attachment 292151
  --> https://bugzilla.kernel.org/attachment.cgi?id=292151&action=edit
Xorg log for 5.8

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[Bug 209015] Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

--- Comment #4 from HenryJiM (henryjm11106@gmail.com) ---
I just retested, clocks actually are reported correctly with the Radeon driver.

this issue is specific to the AMDGPU driver

AMDGPU was loading regardless of kernel cmdline before:

"radeon 0000:29:00.0: CIK support disabled by module param"

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[Bug 209015] Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

--- Comment #5 from Alex Deucher (alexdeucher@gmail.com) ---
Fixed with this patch:
https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next&id=177e38a48168f9e70faaec34df053d2f8134ede6

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[Bug 209015] Clocks are no longer reported for R9 390 GPU

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=209015

HenryJiM (henryjm11106@gmail.com) changed:

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

--- Comment #6 from HenryJiM (henryjm11106@gmail.com) ---
Awesome, confirmed fixed with kernel 5.8.8

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