AMDGPU: No feedback when firmware loading fails

Submitted by Ernst Sjöstrand @ernstp

Assigned to Default DRI bug account

Link to original bug (#107730)

Description

Created attachment 141326
journalctl from the boot

When booting, my system hang at "fb: switching to amdgpudrmfb from EFI VGA"
I could SysRq and also ctrl-alt-del it, but I couldn't get anything more on the screen.

Turns out I couldn't load my firmware anymore. My filesystem (or is that ramdisk on Ubuntu) had been corrupted somehow.

aug 28 23:45:18 mammut kernel: [drm:gfx_v8_0_init_microcode [amdgpu]]
aug 28 23:45:18 mammut kernel: amdgpu 0000:0a:00.0: Direct firmware load for amdgpu/fiji_pfp.bin failed with error -2
aug 28 23:45:18 mammut kernel: amdgpu 0000:0a:00.0: gfx8: Failed to load firmware "amdgpu/fiji_pfp.bin"
aug 28 23:45:18 mammut kernel: [drm:gfx_v8_0_sw_init [amdgpu]] ERROR Failed to load gfx firmware!
aug 28 23:45:18 mammut kernel: [drm:amdgpu_device_init [amdgpu]] ERROR sw_init of IP block <gfx_v8_0> failed -2
aug 28 23:45:18 mammut kernel: amdgpu 0000:0a:00.0: amdgpu_device_ip_init failed
aug 28 23:45:18 mammut kernel: amdgpu 0000:0a:00.0: Fatal error during GPU init

It would be super nice if the system could go back to VGA mode so I could see the error in this case.

Kernel 4.18, Ubuntu, FIJI. amdgpu.dc=1/0 didn't make any difference...

Attachment 141326, "journalctl from the boot":
journal.log.xz