[PATCH] RFC: ux500: add PMU resources

[Rabin Vincent]

On Wed, Jan 19, 2011 at 17:09, Will Deacon <will.deacon at arm.com> wrote:
> 2.) Use IPI to cross-call the IRQ handler when the interrupted CPU doesn't
>    have an interrupt asserted on its PMU. You'll need to sort out problems
>    with re-enabling interrupts for the cross-call and also nesting of the
>    PMU interrupt (because it could fire as a result of another PMU overflowing
>    before you've completed the cross-call).

Here's the IPI version as well, for comparison with the other
approach.  The IRQ handling code will mask the interrupt before
handling it, so it can't nest, can it?

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