On Thu, Mar 29, 2018 at 01:33:28PM -0500, Alex Deucher wrote: > Provide detail on the currently exposed hwmon interfaces > for temperature, power, voltage, and fan. > > v2: add power cap documentation > > Signed-off-by: Alex Deucher <alexander.deucher at amd.com> I think we add a comment to describe that we can use lm-sensors to prints the power cap. jenkins at jenkins-MS-7984:~$ sensors amdgpu-pci-0300 Adapter: PCI adapter vddgfx: +0.80 V fan1: 791 RPM temp1: +47.0°C (crit = +91.0°C, hyst = -273.1°C) power1: 17.00 W (cap = 125.00 W) Reviewed-by: Huang Rui <ray.huang at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 38 ++++++++++++++++++++++++++++++++++ > 1 file changed, 38 insertions(+) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c > index e6e365852f11..c8a8c866e8c9 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c > @@ -1109,6 +1109,44 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev, > return count; > } > > + > +/** > + * DOC: hwmon > + * > + * The amdgpu driver exposes the following sensor interfaces: > + * - GPU temperature (via the on-die sensor) > + * - GPU voltage > + * - Northbridge voltage (APUs only) > + * - GPU power > + * - GPU fan > + * > + * hwmon interfaces for GPU temperature: > + * - temp1_input: the on die GPU temperature in millidegrees Celsius > + * - temp1_crit: temperature critical max value in millidegrees Celsius > + * - temp1_crit_hyst: temperature hysteresis for critical limit in millidegrees Celsius > + * > + * hwmon interfaces for GPU voltage: > + * - in0_input: the voltage on the GPU in millivolts > + * - in1_input: the voltage on the Northbridge in millivolts > + * > + * hwmon interfaces for GPU power: > + * - power1_average: average power used by the GPU in microWatts > + * - power1_cap_min: minimum cap supported in microWatts > + * - power1_cap_max: maximum cap supported in microWatts > + * - power1_cap: selected power cap in microWatts > + * > + * hwmon interfaces for GPU fan: > + * - pwm1: pulse width modulation fan level (0-255) > + * - pwm1_enable: pulse width modulation fan control method > + * 0: no fan speed control > + * 1: manual fan speed control using pwm interface > + * 2: automatic fan speed control > + * - pwm1_min: pulse width modulation fan control minimum level (0) > + * - pwm1_max: pulse width modulation fan control maximum level (255) > + * - fan1_input: fan speed in RPM > + * > + */ > + > static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, amdgpu_hwmon_show_temp, NULL, 0); > static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 0); > static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, amdgpu_hwmon_show_temp_thresh, NULL, 1); > -- > 2.13.6 > > _______________________________________________ > amd-gfx mailing list > amd-gfx at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
