linux-kernel - Re: [RFC PATCH 00/20] Coresight integration with perf

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Date:	Thu, 1 Oct 2015 16:12:44 -0600
From:	Mathieu Poirier <mathieu.poirier@...aro.org>
To:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc:	Greg KH <gregkh@...uxfoundation.org>, a.p.zijlstra@...llo.nl,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ingo Molnar <mingo@...hat.com>, Jon Corbet <corbet@....net>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Chunyan Zhang <zhang.chunyan@...aro.org>,
	Mike Leach <mike.leach@....com>, Tor Jeremiassen <tor@...com>,
	Al Grant <al.grant@....com>,
	Paweł Moll <pawel.moll@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, linux-doc@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 00/20] Coresight integration with perf

On 30 September 2015 at 03:01, Alexander Shishkin
<alexander.shishkin@...ux.intel.com> wrote:
> Mathieu Poirier <mathieu.poirier@...aro.org> writes:
>
>> This patchset aims to integrate configuration and control of
>> the Coresight tracers with the perf sub-system.
>>
>> The goal is to use PMUs to represent tracers and the auxiliary
>> buffer enhancement to collect processor traces.  As such a lot
>> of work is done to move the current Coresight sysFS oriented
>> configuration and control commands to perf's AUX API.
>>
>> For the time being the work concentrates on ETMv3 and ETB1.0
>> sink buffers.  Work on ETMv4 and other type of sink buffers
>> will follow once a foundation has been established.
>
> Also this patchset doesn't seem to apply to tip/perf/core, v4.3-rc3,
> v4.2. What is it based on? Do you have a git branch with these patches
> as well?

The kernel space portion applied to v4.3-rc1.  I had to keep the user
space side on a private branch based on v4.2 since v4.3-rc1 didn't
have a few fix from Adrian.  V2 will be based on v4.3-rc4 and have all
the patches (user and kernel space) on the same tree.


>
> Regards,
> --
> Alex
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