cpufreq: governor: Add a ->start callback for governors

To avoid having to check the governor type explicitly in the common
code in order to initialize data structures specific to the governor
type properly, add a ->start callback to struct dbs_governor and
use it to initialize those data structures for the ondemand and
conservative governors.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Rafael J. Wysocki
2016-02-18 02:21:21 +01:00
parent 8847e038c1
commit 702c9e542a
4 changed files with 22 additions and 14 deletions

View File

@@ -517,7 +517,7 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy)
struct dbs_governor *gov = dbs_governor_of(policy);
struct policy_dbs_info *policy_dbs = policy->governor_data;
struct dbs_data *dbs_data = policy_dbs->dbs_data;
unsigned int sampling_rate, ignore_nice, j, cpu = policy->cpu;
unsigned int sampling_rate, ignore_nice, j;
unsigned int io_busy;
if (!policy->cur)
@@ -543,19 +543,7 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy)
j_cdbs->prev_cpu_nice = kcpustat_cpu(j).cpustat[CPUTIME_NICE];
}
if (gov->governor == GOV_CONSERVATIVE) {
struct cs_cpu_dbs_info_s *cs_dbs_info =
gov->get_cpu_dbs_info_s(cpu);
cs_dbs_info->down_skip = 0;
cs_dbs_info->requested_freq = policy->cur;
} else {
struct od_ops *od_ops = gov->gov_ops;
struct od_cpu_dbs_info_s *od_dbs_info = gov->get_cpu_dbs_info_s(cpu);
od_dbs_info->sample_type = OD_NORMAL_SAMPLE;
od_ops->powersave_bias_init_cpu(cpu);
}
gov->start(policy);
gov_set_update_util(policy_dbs, sampling_rate);
return 0;