Ondemand code needed to be slightly adjusted to allow its reusage.
Mostly one needed to remove static qualifiers and provide some hacks to
allow its working with LAB.
Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx>
Signed-off-by: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx>
---
drivers/cpufreq/cpufreq_governor.h | 10 ++++++++++
drivers/cpufreq/cpufreq_ondemand.c | 24 ++++++++++++++++--------
2 files changed, 26 insertions(+), 8 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index bfb9ae1..34b1cf2 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -270,4 +270,14 @@ void od_register_powersave_bias_handler(unsigned int (*f)
(struct cpufreq_policy *, unsigned int, unsigned int),
unsigned int powersave_bias);
void od_unregister_powersave_bias_handler(void);
+
+/* COMMON CODE FOR DEMAND BASED SWITCHING */
+void od_dbs_timer(struct work_struct *work);
+int od_init(struct dbs_data *dbs_data);
+void od_exit(struct dbs_data *dbs_data);
+void od_check_cpu(int cpu, unsigned int load_freq);
+void update_sampling_rate(struct dbs_data *dbs_data,
+ unsigned int new_rate);
+
+extern struct od_ops od_ops;
#endif /* _CPUFREQ_GOVERNOR_H */
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 18d4091..a27326d 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -27,9 +27,9 @@
#define MIN_FREQUENCY_UP_THRESHOLD (11)
#define MAX_FREQUENCY_UP_THRESHOLD (100)
-static DEFINE_PER_CPU(struct od_cpu_dbs_info_s, od_cpu_dbs_info);
+DEFINE_PER_CPU(struct od_cpu_dbs_info_s, od_cpu_dbs_info);
-static struct od_ops od_ops;
+struct od_ops od_ops;
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND
static struct cpufreq_governor cpufreq_gov_ondemand;
@@ -152,7 +152,7 @@ static void dbs_freq_increase(struct cpufreq_policy *policy, unsigned int freq)
* (default), then we try to increase frequency. Else, we adjust the frequency
* proportional to load.
*/
-static void od_check_cpu(int cpu, unsigned int load)
+void od_check_cpu(int cpu, unsigned int load)
{
struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
struct cpufreq_policy *policy = dbs_info->cdbs.cur_policy;
@@ -188,7 +188,7 @@ static void od_check_cpu(int cpu, unsigned int load)
}
}
-static void od_dbs_timer(struct work_struct *work)
+void od_dbs_timer(struct work_struct *work)
{
struct od_cpu_dbs_info_s *dbs_info =
container_of(work, struct od_cpu_dbs_info_s, cdbs.work.work);
@@ -233,6 +233,9 @@ max_delay:
/************************** sysfs interface ************************/
static struct common_dbs_data od_dbs_cdata;
+#ifdef CONFIG_CPU_FREQ_GOV_LAB
+extern struct cpufreq_governor cpufreq_gov_lab;
+#endif
/**
* update_sampling_rate - update sampling rate effective immediately if needed.
* @new_rate: new sampling rate
@@ -246,7 +249,7 @@ static struct common_dbs_data od_dbs_cdata;
* reducing the sampling rate, we need to make the new value effective
* immediately.
*/
-static void update_sampling_rate(struct dbs_data *dbs_data,
+void update_sampling_rate(struct dbs_data *dbs_data,
unsigned int new_rate)
{
struct od_dbs_tuners *od_tuners = dbs_data->tuners;
@@ -263,7 +266,12 @@ static void update_sampling_rate(struct dbs_data *dbs_data,
policy = cpufreq_cpu_get(cpu);
if (!policy)
continue;
+#ifdef CONFIG_CPU_FREQ_GOV_LAB
+ if (policy->governor != &cpufreq_gov_ondemand &&
+ policy->governor != &cpufreq_gov_lab) {
+#else
if (policy->governor != &cpufreq_gov_ondemand) {
+#endif
cpufreq_cpu_put(policy);
continue;
}
@@ -472,7 +480,7 @@ static struct attribute_group od_attr_group_gov_pol = {
/************************** sysfs end ************************/
-static int od_init(struct dbs_data *dbs_data)
+int od_init(struct dbs_data *dbs_data)
{
struct od_dbs_tuners *tuners;
u64 idle_time;
@@ -514,14 +522,14 @@ static int od_init(struct dbs_data *dbs_data)
return 0;
}
-static void od_exit(struct dbs_data *dbs_data)
+void od_exit(struct dbs_data *dbs_data)
{
kfree(dbs_data->tuners);
}
define_get_cpu_dbs_routines(od_cpu_dbs_info);
-static struct od_ops od_ops = {
+struct od_ops od_ops = {
.powersave_bias_init_cpu = ondemand_powersave_bias_init_cpu,
.powersave_bias_target = generic_powersave_bias_target,
.freq_increase = dbs_freq_increase,
--
1.7.10.4
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