https://bugs.freedesktop.org/show_bug.cgi?id=108685

            Bug ID: 108685
           Summary: Raven Ridge: VMC page fault on resume from suspend
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: samantham@posteo.net

Created attachment 142395
  --> https://bugs.freedesktop.org/attachment.cgi?id=142395&action=edit
kernel log with lockup on resume

This is using 4.20.0-rc1-2.g0587eb8. I believe this is the issue I have had in
the past where the system does not resume from suspend, or at least the
graphics are locked up when I do.

I am able to fix these resume from suspend gpu lockups by using a script to
disable C6 states on the CPU before suspend and then enabling C6 states on
resume (this uses zenstates.py to set MSR through a systemd sleep script).

Nov 06 20:26:29 kernel: gmc_v9_0_process_interrupt: 35 callbacks suppressed
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200135
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200135
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200135
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0: [mmhub] VMC page fault (src_id:0
ring:154 vmid:2 pasid:32771, for process kwin_x11 pid 2792 thread amdgpu_cs:0
pid 2906)
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:   in page starting at address
0x0000800100aaa000 from 18
Nov 06 20:26:29 kernel: amdgpu 0000:05:00.0:
VM_L2_PROTECTION_FAULT_STATUS:0x00200134
Nov 06 20:26:29 kernel: PM: suspend exit

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