(In reply to Thomas Martitz from comment #40)
> Further investigations show that toc->num_entires and toc->structure_version
> are set to -1 after the first call to smu7_request_smu_load_fw(). Does that
> makes sense?

If you read back from the BAR resource on an offline pci device it returns all
1s.

> 
> Since you say the GPU does not properly wake up, can you imagine a
> workaround? The laptop works with windows (of course...) so I'd think there
> ought to be a sw workaround.

Does attachment 140593 [details] [review] fix it as a workaround?  I think ultimately it might be
a flaw in how Linux handles d3cold on some platforms.