Subject: Re: question on FSL_EMB perf

From: Scott Wood <[email-masked]>
Date: Wed, 10 Jun 2015 14:17:10 -0500

On Wed, 2015-06-10 at 13:41 +0200, Peter Zijlstra wrote:
> Hi Mike, Ben,
> 
> I just noticed:
> 
> arch/powerpc/Kconfig:   select HAVE_PERF_EVENTS_NMI if PPC64
> 
> But can't ppc32 have FSL_EMB perf?

Yes, but it doesn't use NMIs.  ppc64 has lazy interrupt disabling 
which functions as a pseudo-NMI.

-Scott