static ssize_t
nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
const char *buf, size_t count)
{
struct drm_device *dev = dev_get_drvdata(d);
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
long value;
if (strict_strtol(buf, 10, &value) == -EINVAL)
return count;
temp->down_clock = value/1000;
nouveau_temp_safety_checks(dev);
return count;
}
static void
nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nouveau_pm_temp_sensor_constants *sensor = &pm->sensor_constants;
struct nouveau_pm_threshold_temp *temps = &pm->threshold_temp;
int i, headerlen, recordlen, entries;
if (!temp) {
NV_DEBUG(dev, "temperature table pointer invalid\n");
return;
}
/* Set the default sensor's contants */
sensor->offset_constant = 0;
sensor->offset_mult = 1;
sensor->offset_div = 1;
sensor->slope_mult = 1;
sensor->slope_div = 1;
/* Set the default temperature thresholds */
temps->critical = 110;
temps->down_clock = 100;
temps->fan_boost = 90;
/* Set the known default values to setup the temperature sensor */
if (dev_priv->card_type >= NV_40) {
switch (dev_priv->chipset) {
case 0x43:
sensor->offset_mult = 32060;
sensor->offset_div = 1000;
sensor->slope_mult = 792;
sensor->slope_div = 1000;
break;
case 0x44:
case 0x47:
case 0x4a:
sensor->offset_mult = 27839;
sensor->offset_div = 1000;
sensor->slope_mult = 780;
sensor->slope_div = 1000;
break;
case 0x46:
sensor->offset_mult = -24775;
sensor->offset_div = 100;
sensor->slope_mult = 467;
sensor->slope_div = 10000;
break;
case 0x49:
sensor->offset_mult = -25051;
sensor->offset_div = 100;
sensor->slope_mult = 458;
sensor->slope_div = 10000;
break;
case 0x4b:
sensor->offset_mult = -24088;
sensor->offset_div = 100;
sensor->slope_mult = 442;
sensor->slope_div = 10000;
break;
case 0x50:
sensor->offset_mult = -22749;
sensor->offset_div = 100;
sensor->slope_mult = 431;
sensor->slope_div = 10000;
break;
}
}
headerlen = temp[1];
recordlen = temp[2];
entries = temp[3];
temp = temp + headerlen;
/* Read the entries from the table */
for (i = 0; i < entries; i++) {
u16 value = ROM16(temp[1]);
switch (temp[0]) {
case 0x01:
if ((value & 0x8f) == 0)
sensor->offset_constant = (value >> 9) & 0x7f;
break;
case 0x04:
if ((value & 0xf00f) == 0xa000) /* core */
temps->critical = (value&0x0ff0) >> 4;
break;
case 0x07:
if ((value & 0xf00f) == 0xa000) /* core */
temps->down_clock = (value&0x0ff0) >> 4;
break;
case 0x08:
if ((value & 0xf00f) == 0xa000) /* core */
temps->fan_boost = (value&0x0ff0) >> 4;
break;
case 0x10:
sensor->offset_mult = value;
break;
case 0x11:
sensor->offset_div = value;
break;
case 0x12:
sensor->slope_mult = value;
break;
case 0x13:
sensor->slope_div = value;
break;
case 0x22:
pm->fan.min_duty = value & 0xff;
pm->fan.max_duty = (value & 0xff00) >> 8;
break;
case 0x26:
pm->fan.pwm_freq = value;
break;
}
temp += recordlen;
}
nouveau_temp_safety_checks(dev);
/* check the fan min/max settings */
if (pm->fan.min_duty < 10)
pm->fan.min_duty = 10;
if (pm->fan.max_duty > 100)
pm->fan.max_duty = 100;
if (pm->fan.max_duty < pm->fan.min_duty)
pm->fan.max_duty = pm->fan.min_duty;
}
