linux-kernel - Re: [PATCH 3/5] perf/POWER7: Make generic event translations available in sysfs

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Message-ID: <20121220053600.GC28007@kroah.com>
Date:	Wed, 19 Dec 2012 21:36:00 -0800
From:	Greg KH <greg@...ah.com>
To:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>,
	Anton Blanchard <anton@....ibm.com>,
	Jiri Olsa <jolsa@...hat.com>, robert.richter@....com,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] perf/POWER7: Make generic event translations
 available in sysfs

On Tue, Dec 18, 2012 at 11:28:49PM -0800, Sukadev Bhattiprolu wrote:
> 
> [PATCH 3/5] perf/POWER7: Make generic event translations available in sysfs
> 
> Make the generic perf events in POWER7 available via sysfs.
> 
> 	$ ls /sys/bus/event_source/devices/cpu/events
> 	branch-instructions
> 	branch-misses
> 	cache-misses
> 	cache-references
> 	cpu-cycles
> 	instructions
> 	stalled-cycles-backend
> 	stalled-cycles-frontend
> 
> 	$ cat /sys/bus/event_source/devices/cpu/events/cache-misses
> 	event=0x400f0
> 
> This patch is based on commits that implement this functionality on x86.
> Eg:
> 	commit a47473939db20e3961b200eb00acf5fcf084d755
> 	Author: Jiri Olsa <jolsa@...hat.com>
> 	Date:   Wed Oct 10 14:53:11 2012 +0200
> 
> 	    perf/x86: Make hardware event translations available in sysfs
> 
> Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
> ---
>  arch/powerpc/include/asm/perf_event_server.h |   25 +++++++++++++++++++
>  arch/powerpc/perf/core-book3s.c              |   12 +++++++++
>  arch/powerpc/perf/power7-pmu.c               |   34 ++++++++++++++++++++++++++
>  3 files changed, 71 insertions(+), 0 deletions(-)

As you are adding new sysfs files, you must also add new
Documentation/ABI entries at the same time.  Please also do this for the
other patches in this series that add new sysfs files.

thanks,

greg k-h
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