#include "debug.h"
#include "wmi-ops.h"
-static int ath10k_thermal_get_active_vifs(struct ath10k *ar,
- enum wmi_vdev_type type)
+static int
+ath10k_thermal_get_max_throttle_state(struct thermal_cooling_device *cdev,
+ unsigned long *state)
{
- struct ath10k_vif *arvif;
- int count = 0;
-
- lockdep_assert_held(&ar->conf_mutex);
-
- list_for_each_entry(arvif, &ar->arvifs, list) {
- if (!arvif->is_started)
- continue;
-
- if (!arvif->is_up)
- continue;
-
- if (arvif->vdev_type != type)
- continue;
-
- count++;
- }
- return count;
-}
-
-static int ath10k_thermal_get_max_dutycycle(struct thermal_cooling_device *cdev,
- unsigned long *state)
-{
- *state = ATH10K_QUIET_DUTY_CYCLE_MAX;
+ *state = ATH10K_THERMAL_THROTTLE_MAX;
return 0;
}
-static int ath10k_thermal_get_cur_dutycycle(struct thermal_cooling_device *cdev,
- unsigned long *state)
+static int
+ath10k_thermal_get_cur_throttle_state(struct thermal_cooling_device *cdev,
+ unsigned long *state)
{
struct ath10k *ar = cdev->devdata;
mutex_lock(&ar->conf_mutex);
- *state = ar->thermal.duty_cycle;
+ *state = ar->thermal.throttle_state;
mutex_unlock(&ar->conf_mutex);
return 0;
}
-static int ath10k_thermal_set_cur_dutycycle(struct thermal_cooling_device *cdev,
- unsigned long duty_cycle)
+static int
+ath10k_thermal_set_cur_throttle_state(struct thermal_cooling_device *cdev,
+ unsigned long throttle_state)
{
struct ath10k *ar = cdev->devdata;
- u32 period, duration, enabled;
- int num_bss, ret = 0;
-
- mutex_lock(&ar->conf_mutex);
- if (ar->state != ATH10K_STATE_ON) {
- ret = -ENETDOWN;
- goto out;
- }
- if (duty_cycle > ATH10K_QUIET_DUTY_CYCLE_MAX) {
- ath10k_warn(ar, "duty cycle %ld is exceeding the limit %d\n",
- duty_cycle, ATH10K_QUIET_DUTY_CYCLE_MAX);
- ret = -EINVAL;
- goto out;
- }
- /* TODO: Right now, thermal mitigation is handled only for single/multi
- * vif AP mode. Since quiet param is not validated in STA mode, it needs
- * to be investigated further to handle multi STA and multi-vif (AP+STA)
- * mode properly.
- */
- num_bss = ath10k_thermal_get_active_vifs(ar, WMI_VDEV_TYPE_AP);
- if (!num_bss) {
- ath10k_warn(ar, "no active AP interfaces\n");
- ret = -ENETDOWN;
- goto out;
- }
- period = max(ATH10K_QUIET_PERIOD_MIN,
- (ATH10K_QUIET_PERIOD_DEFAULT / num_bss));
- duration = (period * duty_cycle) / 100;
- enabled = duration ? 1 : 0;
-
- ret = ath10k_wmi_pdev_set_quiet_mode(ar, period, duration,
- ATH10K_QUIET_START_OFFSET,
- enabled);
- if (ret) {
- ath10k_warn(ar, "failed to set quiet mode period %u duarion %u enabled %u ret %d\n",
- period, duration, enabled, ret);
- goto out;
+ if (throttle_state > ATH10K_THERMAL_THROTTLE_MAX) {
+ ath10k_warn(ar, "throttle state %ld is exceeding the limit %d\n",
+ throttle_state, ATH10K_THERMAL_THROTTLE_MAX);
+ return -EINVAL;
}
- ar->thermal.duty_cycle = duty_cycle;
-out:
+ mutex_lock(&ar->conf_mutex);
+ ar->thermal.throttle_state = throttle_state;
+ ath10k_thermal_set_throttling(ar);
mutex_unlock(&ar->conf_mutex);
- return ret;
+ return 0;
}
static struct thermal_cooling_device_ops ath10k_thermal_ops = {
- .get_max_state = ath10k_thermal_get_max_dutycycle,
- .get_cur_state = ath10k_thermal_get_cur_dutycycle,
- .set_cur_state = ath10k_thermal_set_cur_dutycycle,
+ .get_max_state = ath10k_thermal_get_max_throttle_state,
+ .get_cur_state = ath10k_thermal_get_cur_throttle_state,
+ .set_cur_state = ath10k_thermal_set_cur_throttle_state,
};
static ssize_t ath10k_thermal_show_temp(struct device *dev,
{
struct ath10k *ar = dev_get_drvdata(dev);
int ret, temperature;
+ unsigned long time_left;
mutex_lock(&ar->conf_mutex);
goto out;
}
- ret = wait_for_completion_timeout(&ar->thermal.wmi_sync,
- ATH10K_THERMAL_SYNC_TIMEOUT_HZ);
- if (ret == 0) {
+ time_left = wait_for_completion_timeout(&ar->thermal.wmi_sync,
+ ATH10K_THERMAL_SYNC_TIMEOUT_HZ);
+ if (!time_left) {
ath10k_warn(ar, "failed to synchronize thermal read\n");
ret = -ETIMEDOUT;
goto out;
};
ATTRIBUTE_GROUPS(ath10k_hwmon);
+void ath10k_thermal_set_throttling(struct ath10k *ar)
+{
+ u32 period, duration, enabled;
+ int ret;
+
+ lockdep_assert_held(&ar->conf_mutex);
+
+ if (!ar->wmi.ops->gen_pdev_set_quiet_mode)
+ return;
+
+ if (ar->state != ATH10K_STATE_ON)
+ return;
+
+ period = ar->thermal.quiet_period;
+ duration = (period * ar->thermal.throttle_state) / 100;
+ enabled = duration ? 1 : 0;
+
+ ret = ath10k_wmi_pdev_set_quiet_mode(ar, period, duration,
+ ATH10K_QUIET_START_OFFSET,
+ enabled);
+ if (ret) {
+ ath10k_warn(ar, "failed to set quiet mode period %u duarion %u enabled %u ret %d\n",
+ period, duration, enabled, ret);
+ }
+}
+
int ath10k_thermal_register(struct ath10k *ar)
{
struct thermal_cooling_device *cdev;
ret = sysfs_create_link(&ar->dev->kobj, &cdev->device.kobj,
"cooling_device");
if (ret) {
- ath10k_err(ar, "failed to create thermal symlink\n");
+ ath10k_err(ar, "failed to create cooling device symlink\n");
goto err_cooling_destroy;
}
ar->thermal.cdev = cdev;
+ ar->thermal.quiet_period = ATH10K_QUIET_PERIOD_DEFAULT;
/* Do not register hwmon device when temperature reading is not
* supported by firmware
return 0;
err_remove_link:
- sysfs_remove_link(&ar->dev->kobj, "thermal_sensor");
+ sysfs_remove_link(&ar->dev->kobj, "cooling_device");
err_cooling_destroy:
thermal_cooling_device_unregister(cdev);
return ret;
void ath10k_thermal_unregister(struct ath10k *ar)
{
- thermal_cooling_device_unregister(ar->thermal.cdev);
sysfs_remove_link(&ar->dev->kobj, "cooling_device");
+ thermal_cooling_device_unregister(ar->thermal.cdev);
}
Code Review / kvmfornfv.git / blobdiff