From 9bc0482feae8763447746c89fd971704c819b52e Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Mon, 17 Mar 2014 12:17:30 +0100 Subject: [PATCH] cpuidle: sysfs: Export target residency information From user space, there is no way to know the target residency for each idle state. If we want to write tools to measure the accuracy of the idle state selection from the governor, we need this info. As the exit latency is exported through sysfs, exporting the target residency in the same place makes sense. Signed-off-by: Daniel Lezcano Signed-off-by: Rafael J. Wysocki --- drivers/cpuidle/sysfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index e918b6d0caf7..efe2f175168f 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -293,6 +293,7 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, \ } define_show_state_function(exit_latency) +define_show_state_function(target_residency) define_show_state_function(power_usage) define_show_state_ull_function(usage) define_show_state_ull_function(time) @@ -304,6 +305,7 @@ define_store_state_ull_function(disable) define_one_state_ro(name, show_state_name); define_one_state_ro(desc, show_state_desc); define_one_state_ro(latency, show_state_exit_latency); +define_one_state_ro(residency, show_state_target_residency); define_one_state_ro(power, show_state_power_usage); define_one_state_ro(usage, show_state_usage); define_one_state_ro(time, show_state_time); @@ -313,6 +315,7 @@ static struct attribute *cpuidle_state_default_attrs[] = { &attr_name.attr, &attr_desc.attr, &attr_latency.attr, + &attr_residency.attr, &attr_power.attr, &attr_usage.attr, &attr_time.attr, -- 2.39.2