static ssize_t show_enable_dm_hotplug(struct kobject *kobj,
struct attribute *attr, char *buf)
{
int disabled = exynos_dm_hotplug_disabled();
return snprintf(buf, 10, "%s\n", disabled ? "disabled" : "enabled");
}
static ssize_t store_enable_dm_hotplug(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t count)
{
int enable_input;
if (!sscanf(buf, "%1d", &enable_input))
return -EINVAL;
if (enable_input > 1 || enable_input < 0) {
pr_err("%s: invalid value (%d)\n", __func__, enable_input);
return -EINVAL;
}
if (enable_input) {
do_enable_hotplug = true;
if (exynos_dm_hotplug_disabled())
exynos_dm_hotplug_enable();
else
pr_info("%s: dynamic hotplug already enabled\n",
__func__);
#if defined(CONFIG_SCHED_HMP)
if (cluster1_hotplugged) {
if (dynamic_hotplug(CMD_CLUST1_OUT)) {
pr_err("%s: Cluster1 core hotplug_out is failed\n",
__func__);
do_enable_hotplug = false;
return -EINVAL;
}
}
#endif
do_enable_hotplug = false;
} else {
do_disable_hotplug = true;
if (!dynamic_hotplug(CMD_NORMAL))
prev_cmd = CMD_NORMAL;
if (!exynos_dm_hotplug_disabled())
exynos_dm_hotplug_disable();
else
pr_info("%s: dynamic hotplug already disabled\n",
__func__);
do_disable_hotplug = false;
}
return count;
}
static ssize_t show_cluster0_core1_hotplug_in(struct kobject *kobj,
struct attribute *attr, char *buf)
{
if (exynos_dm_hotplug_disabled())
return snprintf(buf, PAGE_SIZE, "dynamic hotplug disabled\n");
return snprintf(buf, PAGE_SIZE, "%s on low power mode\n",
cluster0_hotplug_in ? "hotplug-in" : "hotplug-out");
}
static void exynos_dm_hotplug_enable(void)
{
mutex_lock(&dm_hotplug_lock);
if (!exynos_dm_hotplug_disabled()) {
pr_warn("%s: dynamic hotplug already enabled\n",
__func__);
mutex_unlock(&dm_hotplug_lock);
return;
}
dm_hotplug_disable--;
mutex_unlock(&dm_hotplug_lock);
}
void exynos_dm_hotplug_enable(void)
{
mutex_lock(&dm_hotplug_lock);
if (!exynos_dm_hotplug_disabled()) {
pr_warn("%s: dynamic hotplug already enabled\n",
__func__);
mutex_unlock(&dm_hotplug_lock);
return;
}
dm_hotplug_disable--;
if (!in_suspend_prepared)
disable_dm_hotplug_before_suspend--;
mutex_unlock(&dm_hotplug_lock);
}
static int __ref __cpu_hotplug(bool out_flag, enum hotplug_cmd cmd)
{
int i = 0;
int ret = 0;
#if defined(CONFIG_SCHED_HMP)
int hotplug_out_limit = 0;
#endif
if (exynos_dm_hotplug_disabled())
return 0;
#if defined(CONFIG_SCHED_HMP)
if (out_flag) {
if (do_disable_hotplug)
goto blk_out;
if (cmd == CMD_SLEEP_PREPARE) {
for (i = setup_max_cpus - 1; i >= NR_CLUST0_CPUS; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
for (i = 1; i < nr_sleep_prepare_cpus; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
else if (cmd == CMD_CLUST1_OUT && !in_low_power_mode) {
for (i = setup_max_cpus - 1; i >= NR_CLUST0_CPUS; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (cmd == CMD_CLUST0_ONE_OUT) {
if (!in_low_power_mode)
goto blk_out;
for (i = NR_CLUST0_CPUS - 2; i > 0; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (cluster0_hotplug_in)
hotplug_out_limit = NR_CLUST0_CPUS - 2;
for (i = setup_max_cpus - 1; i > hotplug_out_limit; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
}
}
} else {
if (in_suspend_prepared)
goto blk_out;
if (cmd == CMD_CLUST1_IN) {
if (in_low_power_mode)
goto blk_out;
for (i = NR_CLUST0_CPUS; i < setup_max_cpus; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
if (cmd == CMD_CLUST0_ONE_IN) {
for (i = 1; i < NR_CLUST0_CPUS - 1; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else if ((cluster1_hotplugged && !do_disable_hotplug) ||
(cmd == CMD_CLUST0_IN)) {
for (i = 1; i < NR_CLUST0_CPUS; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
if (lcd_is_on) {
for (i = NR_CLUST0_CPUS; i < setup_max_cpus; i++) {
if (do_hotplug_out)
goto blk_out;
if (!cpu_online(i)) {
if (i == NR_CLUST0_CPUS)
set_hmp_boostpulse(100000);
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
for (i = 1; i < NR_CLUST0_CPUS; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
for (i = 1; i < setup_max_cpus; i++) {
if (do_hotplug_out && i >= NR_CLUST0_CPUS)
goto blk_out;
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
}
}
}
#else
if (out_flag) {
if (do_disable_hotplug)
goto blk_out;
for (i = setup_max_cpus - 1; i > 0; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (in_suspend_prepared)
goto blk_out;
for (i = 1; i < setup_max_cpus; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
#endif
blk_out:
return ret;
}
static int __ref __cpu_hotplug(bool out_flag, enum hotplug_cmd cmd)
{
int i = 0;
int ret = 0;
if (exynos_dm_hotplug_disabled())
return 0;
#if defined(CONFIG_SCHED_HMP)
if (out_flag) {
if (do_disable_hotplug)
goto blk_out;
if (cmd == CMD_BIG_OUT && !in_low_power_mode) {
for (i = setup_max_cpus - 1; i >= NR_CA7; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
for (i = setup_max_cpus - 1; i > 0; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
}
} else {
if (in_suspend_prepared)
goto blk_out;
if (cmd == CMD_BIG_IN) {
if (in_low_power_mode)
goto blk_out;
for (i = NR_CA7; i < setup_max_cpus; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
if (big_hotpluged && !do_disable_hotplug) {
for (i = 1; i < NR_CA7; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
for (i = 1; i < setup_max_cpus; i++) {
if (do_hotplug_out && i >= NR_CA7)
goto blk_out;
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
}
}
#else
if (out_flag) {
if (do_disable_hotplug)
goto blk_out;
for (i = setup_max_cpus - 1; i > 0; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (in_suspend_prepared)
goto blk_out;
for (i = 1; i < setup_max_cpus; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
#endif
blk_out:
return ret;
}
static int __ref __cpu_hotplug(bool out_flag, enum hotplug_cmd cmd)
{
int i = 0;
int ret = 0;
int hotplug_out_limit = 0;
if (exynos_dm_hotplug_disabled())
return 0;
#if defined(CONFIG_SCHED_HMP)
if (out_flag) {
if (do_disable_hotplug)
goto blk_out;
if (cmd == CMD_BIG_OUT && !in_low_power_mode) {
for (i = max_num_cpu - 1; i >= NR_CA7; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (cmd == CMD_LITTLE_ONE_OUT) {
if (!in_low_power_mode)
goto blk_out;
for (i = NR_CA7 - 2; i > 0; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (little_hotplug_in)
hotplug_out_limit = NR_CA7 - 2;
for (i = max_num_cpu - 1; i > hotplug_out_limit; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
}
}
} else {
if (in_suspend_prepared)
goto blk_out;
if (cmd == CMD_BIG_IN) {
if (in_low_power_mode)
goto blk_out;
for (i = NR_CA7; i < max_num_cpu; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
if (cmd == CMD_LITTLE_ONE_IN) {
for (i = 1; i < NR_CA7 - 1; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else if ((big_hotpluged && !do_disable_hotplug) ||
(cmd == CMD_LITTLE_IN)) {
for (i = 1; i < NR_CA7; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
if (lcd_is_on) {
for (i = NR_CA7; i < max_num_cpu; i++) {
if (do_hotplug_out)
goto blk_out;
if (!cpu_online(i)) {
if (i == NR_CA7)
set_hmp_boostpulse(100000);
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
for (i = 1; i < NR_CA7; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
} else {
for (i = 1; i < max_num_cpu; i++) {
if (do_hotplug_out && i >= NR_CA7)
goto blk_out;
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
}
}
}
#else
if (out_flag) {
if (do_disable_hotplug)
goto blk_out;
for (i = max_num_cpu - 1; i > 0; i--) {
if (cpu_online(i)) {
ret = cpu_down(i);
if (ret)
goto blk_out;
}
}
} else {
if (in_suspend_prepared)
goto blk_out;
for (i = 1; i < max_num_cpu; i++) {
if (!cpu_online(i)) {
ret = cpu_up(i);
if (ret)
goto blk_out;
}
}
}
#endif
blk_out:
return ret;
}
