[Bug 108585] *ERROR* hw_init of IP block <gfx_v8_0> failed -22

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108585

--- Comment #6 from Benjamin Herrenschmidt <benh at kernel.crashing.org> ---
They may or may not be related ... Alex, kexec is how we boot these machines,
there's a Linux kernel in flash that runs a Linux based bootloader.

Until recently however, that didn't have an amdgpu driver. This might have
changed.

Dan... did you do some firmware changes here ? Could it have to do with the
versions differences between petitboot and the final kernel ?

Alex, whether we track it here or separately, we probably need to look into
kexec support. It's not just us, there's a bit of momentum around kexec based
bootloaders (google's on it too) as was seen at the recent OSFC (firmware
conf).

A workaround in the meantime (for kexec problems) could be to hot reset the
card during the transition I suppose.

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