Set module parameter gpu_recovery=1 for amdgpu

[donald]

Experimentally set gpu_recovery=1 to maybe prevent a black screen after

kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=16634335, emitted seq=16634337
kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 718 thread Xorg:cs0 pid 719
kernel: amdgpu 0000:01:00.0: amdgpu: GPU recovery disabled.

Already active on fenchurch:

buczek@fenchurch:~$ cat /sys/module/amdgpu/parameters/gpu_recovery 
1

[donald]

Instead of

fenchurch kernel: [1230177.266745] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=16634335, emitted seq=16634337
fenchurch kernel: [1230177.277767] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 718 thread Xorg:cs0 pid 719
fenchurch kernel: [1230177.288856] amdgpu 0000:01:00.0: amdgpu: GPU recovery disabled.

and a black screen, we now get

fenchurch kernel: [2626466.848775] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout, signaled seq=44663384, emitted seq=44663386
fenchurch kernel: [2626466.859818] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process Xorg pid 721 thread Xorg:cs0 pid 731
fenchurch kernel: [2626466.871181] amdgpu 0000:01:00.0: amdgpu: GPU reset begin!
fenchurch kernel: [2626467.426971] amdgpu 0000:01:00.0: amdgpu: PCI CONFIG reset
fenchurch kernel: [2626467.439013] amdgpu 0000:01:00.0: amdgpu: GPU reset succeeded, trying to resume
fenchurch kernel: [2626467.446512] [drm] PCIE gen 3 link speeds already enabled
fenchurch kernel: [2626467.452714] amdgpu 0000:01:00.0: amdgpu: PCIE GART of 1024M enabled (table at 0x000000F4012E6000).
fenchurch kernel: [2626467.461860] [drm] VRAM is lost due to GPU reset!
fenchurch kernel: [2626468.109263] [drm] UVD initialized successfully.
fenchurch kernel: [2626483.829099] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626483.859275] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626483.912989] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626483.928472] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626487.680371] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626487.695090] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626499.264495] amdgpu 0000:01:00.0: amdgpu: recover vram bo from shadow start
fenchurch kernel: [2626499.271678] amdgpu 0000:01:00.0: amdgpu: recover vram bo from shadow done
fenchurch kernel: [2626499.278642] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.282566] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.286498] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.286619] DMAR: DRHD: handling fault status reg 3
fenchurch kernel: [2626499.290431] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.295474] DMAR: [DMA Read NO_PASID] Request device [01:00.0] fault addr 0xac077000 [fault reason 0x06] PTE Read access is not set
fenchurch kernel: [2626499.299400] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.315303] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.319226] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.319487] [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -125!
fenchurch kernel: [2626499.323150] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.334983] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.338904] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.342828] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.346751] [drm] Skip scheduling IBs!
fenchurch kernel: [2626499.408545] amdgpu 0000:01:00.0: amdgpu: GPU reset(1) succeeded!

and zillions of "ERROR Failed to initialize parser -125!" and "amdgpu_cs_ioctl: 102 callbacks suppressed" messages and a black screen.

This is not really an improvement. I'm going to revert the commit.