[PATCH] powerpc/mpic: don't reset affinity for secondary MPIC on boot

Benjamin Herrenschmidt benh at kernel.crashing.org
Thu Nov 20 02:30:40 EST 2008

On Wed, 2008-11-19 at 14:50 +0100, Arnd Bergmann wrote:
> This patch implements the first approach, because it can work on
> machines that have a secondary controller that needs to deliver
> interrupts to a destination other than CPU 0. The disadvantage
> is that it requires the system to set up the affinity register
> correctly on bootup.
That won't fly with MPICs that get reset.

I would rather, for non primary, set it to a cpu provided as
either a new argument or an mpic struct member initially set to 1 with
an accessor to change it if necessary. Or should we define a flag to
have it read it at init time from the chip ?


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