diff options
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_governor.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index badbd46..4b14f04 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -80,6 +80,36 @@ ssize_t store_sampling_rate(struct dbs_data *dbs_data, const char *buf, } EXPORT_SYMBOL_GPL(store_sampling_rate); +/** + * gov_update_cpu_data - Update CPU load data. + * @gov: Governor whose data is to be updated. + * @dbs_data: Top-level governor data pointer. + * + * Update CPU load data for all CPUs in the domain governed by @dbs_data + * (that may be a single policy or a bunch of them if governor tunables are + * system-wide). + * + * Call under the @dbs_data mutex. + */ +void gov_update_cpu_data(struct dbs_governor *gov, struct dbs_data *dbs_data) +{ + struct policy_dbs_info *policy_dbs; + + list_for_each_entry(policy_dbs, &dbs_data->policy_dbs_list, list) { + unsigned int j; + + for_each_cpu(j, policy_dbs->policy->cpus) { + struct cpu_dbs_info *j_cdbs = gov->get_cpu_cdbs(j); + + j_cdbs->prev_cpu_idle = get_cpu_idle_time(j, &j_cdbs->prev_cpu_wall, + dbs_data->io_is_busy); + if (dbs_data->ignore_nice_load) + j_cdbs->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE]; + } + } +} +EXPORT_SYMBOL_GPL(gov_update_cpu_data); + static inline struct dbs_data *to_dbs_data(struct kobject *kobj) { return container_of(kobj, struct dbs_data, kobj); |