Retrying email again, because, message was rejected by linux-pci
mailing list, due to not being a plain-text. Sorry for the
inconvenience.

Hi Thomas, Lorenzo,

I've been running Linux on a armhf with an AMD gpu card and since this
commit, in linux 4.20, the amdgpu driver causes a kernel oops and
fails to initialize when calling pci_map_rom, which then fails on a
call to ioremap_page_range. If I revert the patch from commit

1f08673eef1236f7d02d93fcf596bb8531ef0d12
 then amdgpu successfully initializes.

The kernel oops follows in attachment.

Regards,
Luís