[PATCH V7 5/5] perf tools: adding sink configuration for cs_etm PMU

Suzuki K Poulose Suzuki.Poulose at arm.com
Wed Aug 31 02:37:43 PDT 2016


On 30/08/16 17:19, Mathieu Poirier wrote:
> Using the PMU::set_drv_config() callback to enable the CoreSight
> sink that will be used for the trace session.

> +int cs_etm_set_drv_config(struct perf_evsel_config_term *term)
> +{
> +	int ret;
> +	char enable_sink[ENABLE_SINK_MAX];
> +
> +	snprintf(enable_sink, ENABLE_SINK_MAX, "%s/%s",
> +		 term->val.drv_cfg, "enable_sink");
> +
> +	ret = cs_device__print_file(enable_sink, "%d", 1);
> +	if (ret < 0)
> +		return ret;
> +
> +	return 0;
> +}


Don't we have to disable the sink at the end of the session ? How is that
taken care of ? Did I miss that ?

Suzuki



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