linux-kernel - Re: [tip:perf/x86] perf/x86/intel: Support task events with Intel CQM

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Date:	Thu, 5 Mar 2015 01:55:16 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Vince Weaver <vince@...ter.net>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Cc:	vikas.shivappa@...ux.intel.com, hpa@...or.com, acme@...nel.org,
	linux-kernel@...r.kernel.org, tglx@...utronix.de, acme@...hat.com,
	torvalds@...ux-foundation.org, matt.fleming@...el.com,
	kanaka.d.juvva@...el.com, jolsa@...hat.com, peterz@...radead.org
Subject: Re: [tip:perf/x86] perf/x86/intel: Support task events with Intel CQM


* Vince Weaver <vince@...ter.net> wrote:

> On Wed, 25 Feb 2015, tip-bot for Matt Fleming wrote:
> 
> > diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
> > index 1e3cd07..3c8b45d 100644
> > --- a/include/uapi/linux/perf_event.h
> > +++ b/include/uapi/linux/perf_event.h
> > @@ -32,6 +32,7 @@ enum perf_type_id {
> >  	PERF_TYPE_HW_CACHE			= 3,
> >  	PERF_TYPE_RAW				= 4,
> >  	PERF_TYPE_BREAKPOINT			= 5,
> > +	PERF_TYPE_INTEL_CQM			= 6,
> >  
> >  	PERF_TYPE_MAX,				/* non-ABI */
> >  };
> 
> I thought the rule was no adding support for things in perf_event unless 
> they were sufficiently generic as to be cross-architecture.
> 
> Having a high-level event type with "intel" in the name seems awfully 
> specific.

That's a fair point. Peter?

Thanks,

	Ingo
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