RISC-V: Do not wait indefinitely in __cpu_up

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In SMP path, __cpu_up waits for other CPU to come online indefinitely.
This is wrong as other CPU might be disabled in machine mode and
possible CPU is set to the cpus present in DT.

Introduce a completion variable and waits only for a second.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>

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Atish Patra 2019-02-22 11:41:35 -08:00 • committed by Palmer Dabbelt

parent 79a47bad61

commit e15c6e3706

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arch/riscv/kernel/smpboot.c

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