static int
nv40_temp_get(struct nouveau_therm *therm)
{
struct nouveau_therm_priv *priv = (void *)therm;
struct nouveau_device *device = nv_device(therm);
struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
int core_temp;
if (device->chipset >= 0x46) {
nv_wr32(therm, 0x15b0, 0x80003fff);
core_temp = nv_rd32(therm, 0x15b4) & 0x3fff;
} else {
nv_wr32(therm, 0x15b0, 0xff);
core_temp = nv_rd32(therm, 0x15b4) & 0xff;
}
/* Setup the sensor if the temperature is 0 */
if (core_temp == 0)
core_temp = nv40_sensor_setup(therm);
if (sensor->slope_div == 0)
sensor->slope_div = 1;
if (sensor->offset_den == 0)
sensor->offset_den = 1;
if (sensor->slope_mult < 1)
sensor->slope_mult = 1;
core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
core_temp = core_temp + sensor->offset_num / sensor->offset_den;
core_temp = core_temp + sensor->offset_constant - 8;
return core_temp;
}
int
nv40_temp_get(struct drm_device *dev)
{
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;
int offset = sensor->offset_mult / sensor->offset_div;
int core_temp;
if (dev_priv->chipset >= 0x50) {
core_temp = nv_rd32(dev, 0x20008);
} else {
core_temp = nv_rd32(dev, 0x0015b4) & 0x1fff;
/* Setup the sensor if the temperature is 0 */
if (core_temp == 0)
core_temp = nv40_sensor_setup(dev);
}
core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
core_temp = core_temp + offset + sensor->offset_constant;
return core_temp;
}
