linux-kernel - Re: [PATCH V4 6/6] coresight: etm-perf: incorporating sink definition from cmd line

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Message-ID: <2b1836a4-00be-b6d5-02d4-38d23b3451ad@arm.com>
Date:	Fri, 5 Aug 2016 10:32:59 +0100
From:	Suzuki K Poulose <Suzuki.Poulose@....com>
To:	Mathieu Poirier <mathieu.poirier@...aro.org>, acme@...nel.org,
	jolsa@...nel.org
Cc:	peterz@...radead.org, mingo@...hat.com,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH V4 6/6] coresight: etm-perf: incorporating sink definition
 from cmd line

On 04/08/16 17:53, Mathieu Poirier wrote:
> Now that PMU specific configuration is available as part of the event,
> lookup the sink identified by users from the perf command line and build
> a path from source to sink.
>
> With this functionality it is no longer required to select a sink in a
> separate step (from sysFS) before a perf trace session can be started.
>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>


> +static const match_table_t drv_cfg_tokens = {
> +	{ETM_TOKEN_SINK_CPU, "sink=cpu%d:%s"},
> +	{ETM_TOKEN_SINK, "sink=%s"},
> +	{ETM_TOKEN_ERR, NULL},
> +};
> +

Is the above format documented somewhere for the perf users ? If not could we please
add it ?

Thanks
Suzuki