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

[Scott Wood]

Kim Phillips wrote:
> On Fri, 30 May 2008 14:41:17 -0500
> Scott Wood <scottwood at freescale.com> wrote:
> 
>> Kim Phillips wrote:
>>> On Fri, 30 May 2008 22:09:04 +0400
>>> Evgeniy Polyakov <johnpol at 2ka.mipt.ru> 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.

But you don't take the spinlocks from the interrupt handler.

-Scott