Guo Ren 859e5f45cb csky: CPU-hotplug supported for SMP ...

This is a simple implement of CPU-hotplug for power saving. CPU use
wait instruction to enter power saving mode and waiting for IPI wakeup
signal.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>

2018-12-31 23:03:53 +08:00

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