[Regression bisected] v6.3-rc4 Error scheduling IBs after resume from hibernate

[Julian Wollrath]

Hi,

on an AMD Ryzen 5 PRO 4650U / Renoir (amdgpu: added device
1002:1636) I the screen basically freezes and I get the
following errors with kernel v6.3-rc4

[   26.214541] amdgpu 0000:03:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed on gfx_low (-110).
[   26.379624] [drm] ring 0 timeout to preempt ib
[   27.387884] amdgpu 0000:03:00.0: [drm:amdgpu_ib_ring_tests [amdgpu]] *ERROR* IB test failed on gfx_high (-110).
[   27.392945] [drm:process_one_work] *ERROR* ib ring test failed (-110).
[   27.400370] amdgpu 0000:03:00.0: amdgpu: couldn't schedule ib on ring <gfx_low>
[   27.400384] [drm:amdgpu_job_run [amdgpu]] *ERROR* Error scheduling
IBs (-22)
[   44.440532] amdgpu 0000:03:00.0: amdgpu: failed to write reg 28b4 wait reg 28c6
[   61.177118] amdgpu 0000:03:00.0: amdgpu: failed to write reg 1a6f4 wait reg 1a706
[   61.189275] amdgpu 0000:03:00.0: amdgpu: couldn't schedule ib on ring <gfx_low>
[   61.189286] [drm:amdgpu_job_run [amdgpu]] *ERROR* Error scheduling
IBs (-22)

I bisected the issue, the first bad commit is
b589626674de94d977e81c99bf7905872b991197 reverting it on top
of v6.3-rc4 also fixes the issue.


Best regards,
Julian Wollrath

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