Samuel Holland 16d413f8c9 sunxi: psci: Avoid hanging when CPU 0 is hot-unplugged
Do not try to send an SGI from CPU 0 to itself. Since FIQs are masked
when entering monitor mode, this will hang. Plus, CPU 0 cannot fully
power itself off anyway. Instead, have it turn FIQs back on and continue
servicing SGIs from other cores.

Signed-off-by: Samuel Holland <samuel@sholland.org>
2022-10-31 21:53:17 -05:00
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