Re: OMAP4: IRQ line of CortexA9 performance monitor

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Ming Lei <tom.leiming@xxxxxxxxx> writes:

> Hi,
>
> From chapter 17 of "Interrupt controller", OMAP4 TRM, I can't
> find what is the interrupt line of CortexA9 performance monitor
> in omap4. Seems without this information, we can't use perf on
> omap4.
>
> Any suggestions or ideas about it?

The PMU interrupt is routed through the CTI, which needs to be properly
configured.  Unfortunately, the CTI is not documented in the public TRM,
and nobody has seen fit to submit a patch suitable for upstream.  Some
dirty hacks have been posted, though.

-- 
Måns Rullgård
mans@xxxxxxxxx

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