Messages in this thread | | | Date | Mon, 8 Apr 2013 17:24:22 +1000 | From | Michael Ellerman <> | Subject | Re: [RFC/PATCH] perf: Expand definition of sysfs format attribute |
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On Mon, Mar 04, 2013 at 03:21:05PM +1100, Michael Ellerman wrote: > Make it explicit that the format attributes may define overlapping bit > ranges. Unfortunately this was left unspecified originally, and all the > examples show non-overlapping ranges. I don't believe this is an ABI > change, as we are defining something that was previously undefined, but > others may disagree. > > The POWER8 PMU would like to define overlapping ranges, as bit ranges in > the event code have different meanings for certain events. It will also > allow us to define an overarching "event" field, that encompasses all > others. > > As far as I can see perf is comfortable with this change, however I am > not sure if there are any other users of the interface.
Any comments on this one?
cheers
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