Commit 45fbc464 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Rafael J. Wysocki
Browse files

PM: domains: Add "performance" column to debug summary 



Add "performance" column to debug summary which shows performance state
of all power domains and theirs devices.

Tested-by: default avatarPeter Geis <pgwipeout@gmail.com>
Tested-by: default avatarNicolas Chauvet <kwizart@gmail.com>
Tested-by: default avatarMatt Merhar <mattmerhar@protonmail.com>
[tested on NVIDIA Tegra20/30/124 SoCs]
Reviewed-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Reviewed-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 18027d6f

drivers/base/power/domain.c

+15 −4
Original line number Diff line number Diff line
@@ -2985,7 +2985,15 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev) 
	else

		WARN_ON(1);



	seq_puts(s, p);

	seq_printf(s, "%-25s  ", p);

}



static void perf_status_str(struct seq_file *s, struct device *dev)

{

	struct generic_pm_domain_data *gpd_data;



	gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);

	seq_put_decimal_ull(s, "", gpd_data->performance_state);

}



static int genpd_summary_one(struct seq_file *s,
@@ -3013,7 +3021,7 @@ static int genpd_summary_one(struct seq_file *s, 
	else

		snprintf(state, sizeof(state), "%s",

			 status_lookup[genpd->status]);

	seq_printf(s, "%-30s  %-15s ", genpd->name, state);

	seq_printf(s, "%-30s  %-50s %u", genpd->name, state, genpd->performance_state);



	/*

	 * Modifications on the list require holding locks on both
@@ -3021,6 +3029,8 @@ static int genpd_summary_one(struct seq_file *s, 
	 * Also genpd->name is immutable.

	 */

	list_for_each_entry(link, &genpd->parent_links, parent_node) {

		if (list_is_first(&link->parent_node, &genpd->parent_links))

			seq_printf(s, "\n%48s", " ");

		seq_printf(s, "%s", link->child->name);

		if (!list_is_last(&link->parent_node, &genpd->parent_links))

			seq_puts(s, ", ");
@@ -3035,6 +3045,7 @@ static int genpd_summary_one(struct seq_file *s, 


		seq_printf(s, "\n    %-50s  ", kobj_path);

		rtpm_status_str(s, pm_data->dev);

		perf_status_str(s, pm_data->dev);

		kfree(kobj_path);

	}
@@ -3050,9 +3061,9 @@ static int summary_show(struct seq_file *s, void *data) 
	struct generic_pm_domain *genpd;

	int ret = 0;



	seq_puts(s, "domain                          status          children\n");

	seq_puts(s, "domain                          status          children                           performance\n");

	seq_puts(s, "    /device                                             runtime status\n");

	seq_puts(s, "----------------------------------------------------------------------\n");

	seq_puts(s, "----------------------------------------------------------------------------------------------\n");



	ret = mutex_lock_interruptible(&gpd_list_lock);

	if (ret)