int
nouveau_therm_fan_user_set(struct nouveau_therm *therm, int percent)
{
struct nouveau_therm_priv *priv = (void *)therm;
if (priv->mode != NOUVEAU_THERM_CTRL_MANUAL)
return -EINVAL;
return nouveau_therm_fan_set(therm, true, percent);
}
int
nouveau_therm_fan_user_set(struct nouveau_therm *therm, int percent)
{
struct nouveau_therm_priv *priv = (void *)therm;
if (priv->fan.mode != FAN_CONTROL_MANUAL)
return -EINVAL;
return nouveau_therm_fan_set(therm, percent);
}
static void
nouveau_therm_update(struct nouveau_therm *therm, int mode)
{
struct nouveau_timer *ptimer = nouveau_timer(therm);
struct nouveau_therm_priv *priv = (void *)therm;
unsigned long flags;
bool immd = true;
bool poll = true;
int duty = -1;
spin_lock_irqsave(&priv->lock, flags);
if (mode < 0)
mode = priv->mode;
priv->mode = mode;
switch (mode) {
case NOUVEAU_THERM_CTRL_MANUAL:
ptimer->alarm_cancel(ptimer, &priv->alarm);
duty = nouveau_therm_fan_get(therm);
if (duty < 0)
duty = 100;
poll = false;
break;
case NOUVEAU_THERM_CTRL_AUTO:
switch(priv->fan->bios.fan_mode) {
case NVBIOS_THERM_FAN_TRIP:
duty = nouveau_therm_update_trip(therm);
break;
case NVBIOS_THERM_FAN_LINEAR:
duty = nouveau_therm_update_linear(therm);
break;
case NVBIOS_THERM_FAN_OTHER:
if (priv->cstate)
duty = priv->cstate;
poll = false;
break;
}
immd = false;
break;
case NOUVEAU_THERM_CTRL_NONE:
default:
ptimer->alarm_cancel(ptimer, &priv->alarm);
poll = false;
}
if (list_empty(&priv->alarm.head) && poll)
ptimer->alarm(ptimer, 1000000000ULL, &priv->alarm);
spin_unlock_irqrestore(&priv->lock, flags);
if (duty >= 0) {
nv_debug(therm, "FAN target request: %d%%\n", duty);
nouveau_therm_fan_set(therm, immd, duty);
}
}
void nouveau_therm_sensor_event(struct nouveau_therm *therm,
enum nouveau_therm_thrs thrs,
enum nouveau_therm_thrs_direction dir)
{
struct nouveau_therm_priv *priv = (void *)therm;
bool active;
const char *thresolds[] = {
"fanboost", "downclock", "critical", "shutdown"
};
int temperature = therm->temp_get(therm);
if (thrs < 0 || thrs > 3)
return;
if (dir == NOUVEAU_THERM_THRS_FALLING)
nv_info(therm, "temperature (%i C) went below the '%s' threshold\n",
temperature, thresolds[thrs]);
else
nv_info(therm, "temperature (%i C) hit the '%s' threshold\n",
temperature, thresolds[thrs]);
active = (dir == NOUVEAU_THERM_THRS_RISING);
switch (thrs) {
case NOUVEAU_THERM_THRS_FANBOOST:
if (active) {
nouveau_therm_fan_set(therm, true, 100);
nouveau_therm_fan_mode(therm, NOUVEAU_THERM_CTRL_AUTO);
}
break;
case NOUVEAU_THERM_THRS_DOWNCLOCK:
if (priv->emergency.downclock)
priv->emergency.downclock(therm, active);
break;
case NOUVEAU_THERM_THRS_CRITICAL:
if (priv->emergency.pause)
priv->emergency.pause(therm, active);
break;
case NOUVEAU_THERM_THRS_SHUTDOWN:
if (active) {
struct work_struct *work;
work = kmalloc(sizeof(*work), GFP_ATOMIC);
if (work) {
INIT_WORK(work, nv_poweroff_work);
schedule_work(work);
}
}
break;
case NOUVEAU_THERM_THRS_NR:
break;
}
}
static void
nouveau_therm_update(struct nouveau_therm *therm, int mode)
{
struct nouveau_timer *ptimer = nouveau_timer(therm);
struct nouveau_therm_priv *priv = (void *)therm;
unsigned long flags;
int duty;
spin_lock_irqsave(&priv->lock, flags);
nv_debug(therm, "FAN speed check\n");
if (mode < 0)
mode = priv->mode;
priv->mode = mode;
switch (mode) {
case NOUVEAU_THERM_CTRL_MANUAL:
ptimer->alarm_cancel(ptimer, &priv->alarm);
duty = nouveau_therm_fan_get(therm);
if (duty < 0)
duty = 100;
break;
case NOUVEAU_THERM_CTRL_AUTO:
if (priv->fan->bios.nr_fan_trip)
duty = nouveau_therm_update_trip(therm);
else
duty = nouveau_therm_update_linear(therm);
break;
case NOUVEAU_THERM_CTRL_NONE:
default:
ptimer->alarm_cancel(ptimer, &priv->alarm);
goto done;
}
nv_debug(therm, "FAN target request: %d%%\n", duty);
nouveau_therm_fan_set(therm, (mode != NOUVEAU_THERM_CTRL_AUTO), duty);
done:
if (list_empty(&priv->alarm.head) && (mode == NOUVEAU_THERM_CTRL_AUTO))
ptimer->alarm(ptimer, 1000000000ULL, &priv->alarm);
else if (!list_empty(&priv->alarm.head))
nv_debug(therm, "therm fan alarm list is not empty\n");
spin_unlock_irqrestore(&priv->lock, flags);
}
int
_nouveau_therm_init(struct nouveau_object *object)
{
struct nouveau_therm *therm = (void *)object;
struct nouveau_therm_priv *priv = (void *)therm;
int ret;
ret = nouveau_subdev_init(&therm->base);
if (ret)
return ret;
if (priv->suspend >= 0) {
/* restore the pwm value only when on manual or auto mode */
if (priv->suspend > 0)
nouveau_therm_fan_set(therm, true, priv->fan->percent);
nouveau_therm_fan_mode(therm, priv->suspend);
}
nouveau_therm_sensor_init(therm);
nouveau_therm_fan_init(therm);
return 0;
}
