linux-kernel - Re: [PATCH] Add some documentation on the perf sysfs ABI interface

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Message-ID: <20140914154455.GP5387@tassilo.jf.intel.com>
Date:	Sun, 14 Sep 2014 08:44:55 -0700
From:	Andi Kleen <ak@...ux.intel.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org,
	mingo@...nel.org, eranian@...gle.com,
	Vince Weaver <vincent.weaver@...ne.edu>, jolsa@...hat.com
Subject: Re: [PATCH] Add some documentation on the perf sysfs ABI interface

On Sun, Sep 14, 2014 at 08:34:07AM -0700, Greg KH wrote:
> On Sun, Sep 14, 2014 at 11:30:33AM +0200, Peter Zijlstra wrote:
> > On Fri, Sep 12, 2014 at 03:34:19PM -0700, Andi Kleen wrote:
> > > From: Andi Kleen <ak@...ux.intel.com>
> > > 
> > > Initial attempt of documenting the perf sysfs interface as
> > > an ABI. I also added some additional pointers hopefully useful
> > > to the users. Comments welcome.
> > 
> > My only worry is that its a little x86 centric and I'm not sure if that
> > is acceptable with the sysfs crowd, Greg?
> 
> Does this document what you have today?  If so, that's fine, and good to
> do.
> 
> Or, is this a proposed interface that is different per architecture in
> subtle non-portable ways?  If so, probably not :)

Each architecture describes its own fields in a generic format that
can be handled by a generic parser.  The generic description is documented.

However I also described the x86 specific attributes.

This is all implemented today.

-Andi
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