[PATCH] soc: fujitsu: Add A64FX diagnostic interrupt driver

[hasegawa-hitomi at fujitsu.com]

Hi Greg and Jiri,

I'm trying to implement a feature for A64FX that will panic when
a diagnostic interrupt is received.
Arnd suggested that handle_sysrq() should be used
but I'm wonderingif it's ok to call it in NMI.
Would you please let me know if we can call handle_sysrq() in NMI?

Thank you.
Hitomi Hasegawa