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

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

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Tested-by: Matt Merhar <mattmerhar@protonmail.com>
[tested on NVIDIA Tegra20/30/124 SoCs]
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dmitry Osipenko 2021-01-21 00:12:32 +03:00 committed by Rafael J. Wysocki
parent 18027d6f39
commit 45fbc464b0
1 changed files with 15 additions and 4 deletions
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19
drivers/base/power/domain.c
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@ -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)