openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

[CPUFREQ] ondemand: trivial clean-ups 

Trivial ondemand governor clean-ups:
- change from sampling_rate_in_HZ() to the official function
usecs_to_jiffies().
- use for_each_online_cpu() to instead of using "if (cpu_online(i))"

Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Dave Jones 2005-05-31 19:03:44 -07:00
parent 8282864a96
commit 6fe711658f
1 changed files with 6 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/cpufreq/cpufreq_ondemand.c
View File

@ -57,7 +57,6 @@ static unsigned int def_sampling_rate;
#define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER (1000)
#define DEF_SAMPLING_DOWN_FACTOR (10)
#define TRANSITION_LATENCY_LIMIT (10 * 1000)
#define sampling_rate_in_HZ(x) (((x * HZ) < (1000 * 1000))?1:((x * HZ) / (1000 * 1000)))
static void do_dbs_timer(void *data);
@ -281,7 +280,7 @@ static void dbs_check_cpu(int cpu)
/* Scale idle ticks by 100 and compare with up and down ticks */
idle_ticks *= 100;
up_idle_ticks = (100 - dbs_tuners_ins.up_threshold) *
sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate);
usecs_to_jiffies(dbs_tuners_ins.sampling_rate);
if (idle_ticks < up_idle_ticks) {
__cpufreq_driver_target(policy, policy->max,
@ -328,7 +327,7 @@ static void dbs_check_cpu(int cpu)
freq_down_sampling_rate = dbs_tuners_ins.sampling_rate *
dbs_tuners_ins.sampling_down_factor;
down_idle_ticks = (100 - dbs_tuners_ins.down_threshold) *
sampling_rate_in_HZ(freq_down_sampling_rate);
usecs_to_jiffies(freq_down_sampling_rate);
if (idle_ticks > down_idle_ticks ) {
freq_down_step = (5 * policy->max) / 100;
@ -348,11 +347,10 @@ static void do_dbs_timer(void *data)
{
int i;
down(&dbs_sem);
for (i = 0; i < NR_CPUS; i++)
if (cpu_online(i))
dbs_check_cpu(i);
for_each_online_cpu(i)
dbs_check_cpu(i);
schedule_delayed_work(&dbs_work,
sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate));
usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
up(&dbs_sem);
}
@ -360,7 +358,7 @@ static inline void dbs_timer_init(void)
{
INIT_WORK(&dbs_work, do_dbs_timer, NULL);
schedule_delayed_work(&dbs_work,
sampling_rate_in_HZ(dbs_tuners_ins.sampling_rate));
usecs_to_jiffies(dbs_tuners_ins.sampling_rate));
return;
}