Re: [PATCH 2/2] talitos: Freescale integrated security engine (SEC) driver

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On Fri, 30 May 2008 14:41:17 -0500
Scott Wood <scottwood@xxxxxxxxxxxxx> wrote:

> Kim Phillips wrote:
> > On Fri, 30 May 2008 22:09:04 +0400
> > Evgeniy Polyakov <johnpol@xxxxxxxxxxx> wrote:
> >> Don't you want to protect against simultaneous access to register space
> >> from different CPUs? Or it is single processor board only?
> > 
> > Doesn't linux mask the IRQ line for the interrupt currently being
> > serviced, and on all processors?
> 
> Yes.  Could there be interference from non-interrupt driver code on 
> another cpu (or interrupted code), though?

not that I can see - the fetch fifo register writes are protected with
per-channel spinlocks.

Kim
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