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powerpc: Add support for using doorbells for SMP IPI
authorKumar Gala <galak@kernel.crashing.org>
Thu, 12 Feb 2009 13:54:53 +0000 (13:54 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Mon, 23 Feb 2009 04:53:03 +0000 (15:53 +1100)
The e500mc supports the new msgsnd/doorbell mechanisms that were added in
the Power ISA 2.05 architecture.  We use the normal level doorbell for
doing SMP IPIs at this point.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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