[v2,21/48] PM: domains: Add "performance" column to debug summary

Commit Message

Dmitry Osipenko Dec. 17, 2020, 6:06 p.m. UTC

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

Signed-off-by: Dmitry Osipenko <[e-mail]>
---
 drivers/base/power/domain.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

Patch

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index a3e1bfc233d4..1c60dae8540c 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2951,7 +2951,15 @@  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,
@@ -2979,7 +2987,7 @@  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
@@ -2987,7 +2995,10 @@  static int genpd_summary_one(struct seq_file *s,
 	 * Also genpd->name is immutable.
 	 */
 	list_for_each_entry(link, &genpd->parent_links, parent_node) {
-		seq_printf(s, "%s", link->child->name);
+		if (list_is_first(&link->parent_node, &genpd->parent_links))
+			seq_printf(s, "\n%50s ", link->child->name);
+		else
+			seq_printf(s, "%s", link->child->name);
 		if (!list_is_last(&link->parent_node, &genpd->parent_links))
 			seq_puts(s, ", ");
 	}
@@ -3001,6 +3012,7 @@  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);
 	}
 
@@ -3016,9 +3028,9 @@  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)