A clockevent IRQ delivery question

Jon Loeliger loeliger at gmail.com
Fri Jun 20 08:18:58 PDT 2014


>
> Hi Jon,

Hi Daniel,

> you can have a look at the exynos_mct driver which has similar design.

OK, I'll give that a once-over!

So yeah, it is pretty clearly doing what I was (slowly) deducing: PPIs are
getting percpu stuff, and SPI are all getting just this
smp_processor_id() stuff.

> There was a notifier for cpu bootup but Thomas added a force affinity api,
> so even if the cpu is not in the online mask, the irq is correctly set
> (commit 30ccf03b).

Ah, I see.  I'll track that commit down.  Thanks.

> By the way, did you try to use the A9 local timers (twd) ?

Not yet.  I hit the global timer just to get my port going.  I needed to
implement and verify our timer block.  But I can give the TWD a
run as well!

Thanks!
jdl



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