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linux/arch/powerpc/kernel/dbell.c
Nicholas Piggin b87ac02183 powerpc: Introduce msgsnd/doorbell barrier primitives 
POWER9 changes requirements and adds new instructions for
synchronization.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-04-13 23:34:33 +10:00

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