Messages in this thread Patch in this message | | | From | Lukasz Luba <> | Subject | [RFC PATCH 3/4] cpufreq: Add Active Stats calls tracking frequency changes | Date | Tue, 22 Jun 2021 08:59:24 +0100 |
| |
The Active Stats framework tracks and accounts the activity of the CPU for each performance level. It accounts the real residency, when the CPU was not idle, at a given performance level. This patch adds needed calls which provide the CPU frequency transition events to the Active Stats framework.
Signed-off-by: Lukasz Luba <lukasz.luba@arm.com> --- drivers/cpufreq/cpufreq.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 802abc925b2a..d79cb9310572 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -14,6 +14,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/active_stats.h> #include <linux/cpu.h> #include <linux/cpufreq.h> #include <linux/cpu_cooling.h> @@ -387,6 +388,8 @@ static void cpufreq_notify_transition(struct cpufreq_policy *policy, cpufreq_stats_record_transition(policy, freqs->new); policy->cur = freqs->new; + + active_stats_cpu_freq_change(policy->cpu, freqs->new); } } @@ -2085,6 +2088,8 @@ unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy, policy->cpuinfo.max_freq); cpufreq_stats_record_transition(policy, freq); + active_stats_cpu_freq_fast_change(policy->cpu, freq); + if (trace_cpu_frequency_enabled()) { for_each_cpu(cpu, policy->cpus) trace_cpu_frequency(freq, cpu); -- 2.17.1
| |