diff options
| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2014-03-17 12:17:30 +0100 |
|---|---|---|
| committer | Robin Randhawa <robin.randhawa@arm.com> | 2015-04-09 12:26:02 +0100 |
| commit | aac7a83f922764ac503687006851c669c4d6b4de (patch) | |
| tree | 607b0cf80300974c8be58934405f25cc784528e1 /drivers | |
| parent | 98324e54fe37bad44b0cd59212891b55777509eb (diff) | |
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 <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
(cherry picked from commit 9bc0482feae8763447746c89fd971704c819b52e)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/cpuidle/sysfs.c | 3 |
1 files changed, 3 insertions, 0 deletions
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, |