static ssize_t __ref store_online(struct sys_device *dev, struct sysdev_attribute *attr,
const char *buf, size_t count)
{
struct cpu *cpu = container_of(dev, struct cpu, sysdev);
ssize_t ret;
cpu_hotplug_driver_lock();
switch (buf[0]) {
case '0':
ret = cpu_down(cpu->sysdev.id);
if (!ret)
kobject_uevent(&dev->kobj, KOBJ_OFFLINE);
break;
case '1':
ret = cpu_up(cpu->sysdev.id);
if (!ret)
kobject_uevent(&dev->kobj, KOBJ_ONLINE);
break;
default:
ret = -EINVAL;
}
cpu_hotplug_driver_unlock();
#if defined (CONFIG_KOR_MODEL_SHV_E120S) || defined (CONFIG_KOR_MODEL_SHV_E120K) || defined (CONFIG_KOR_MODEL_SHV_E120L) \
|| defined (CONFIG_KOR_MODEL_SHV_E160S) || defined (CONFIG_KOR_MODEL_SHV_E160K) || defined(CONFIG_KOR_MODEL_SHV_E160L) \
|| defined (CONFIG_USA_MODEL_SGH_I757) || defined (CONFIG_USA_MODEL_SGH_I577) || defined (CONFIG_USA_MODEL_SGH_T769) || defined(CONFIG_CAN_MODEL_SGH_I577R) || defined (CONFIG_CAN_MODEL_SGH_I757M)
if (!ret && cpu->sysdev.id == NON_BOOT_CPU)
{
if (buf[0] == '0') // cpu1 offline
{
cpufreq_set_limit(UNI_PRO_START);
}
else if (buf[0] == '1') // cpu1 online
{
cpufreq_set_limit(UNI_PRO_STOP);
}
}
#endif
if (ret >= 0)
ret = count;
return ret;
}
static ssize_t store_run_queue_avg(struct kobject *kobj,
struct kobj_attribute *attr, char *buf, size_t count)
{
if (buf[0] == '1')
{
if (is_dual_locked != 0)
return count;
cpufreq_set_limit(DVFS_START);
#if 1
cpu_hotplug_driver_lock();
if (cpu_is_offline(NON_BOOT_CPU))
{
cpu_up(NON_BOOT_CPU); // it takes 60ms
}
cpu_hotplug_driver_unlock();
#else
if (cpu_is_offline(NON_BOOT_CPU))
schedule_work_on(0, &dvfs_hotplug_work);
#endif
stall_mpdecision = 1;
is_dual_locked = 1;
}
else
{
if (is_dual_locked == 0)
{
stall_mpdecision = 0;
return count;
}
cpufreq_set_limit(DVFS_STOP);
stall_mpdecision = 0;
is_dual_locked = 0;
}
return count;
}