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drm/nouveau/hwmon: expose power_max and power_crit 

Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Karol Herbst 2017-01-23 23:10:13 +01:00 committed by Ben Skeggs
parent 1efc3c4b9f
commit 7722e1b0b6
1 changed files with 44 additions and 0 deletions
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44
drivers/gpu/drm/nouveau/nouveau_hwmon.c
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@ -596,6 +596,32 @@ nouveau_hwmon_get_power1_input(struct device *d, struct device_attribute *a,
static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO,
nouveau_hwmon_get_power1_input, NULL, 0);
static ssize_t
nouveau_hwmon_get_power1_max(struct device *d, struct device_attribute *a,
char *buf)
{
struct drm_device *dev = dev_get_drvdata(d);
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvkm_iccsense *iccsense = nvxx_iccsense(&drm->client.device);
return sprintf(buf, "%i\n", iccsense->power_w_max);
}
static SENSOR_DEVICE_ATTR(power1_max, S_IRUGO,
nouveau_hwmon_get_power1_max, NULL, 0);
static ssize_t
nouveau_hwmon_get_power1_crit(struct device *d, struct device_attribute *a,
char *buf)
{
struct drm_device *dev = dev_get_drvdata(d);
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvkm_iccsense *iccsense = nvxx_iccsense(&drm->client.device);
return sprintf(buf, "%i\n", iccsense->power_w_crit);
}
static SENSOR_DEVICE_ATTR(power1_crit, S_IRUGO,
nouveau_hwmon_get_power1_crit, NULL, 0);
static struct attribute *hwmon_default_attributes[] = {
&sensor_dev_attr_name.dev_attr.attr,
&sensor_dev_attr_update_rate.dev_attr.attr,
@ -639,6 +665,12 @@ static struct attribute *hwmon_power_attributes[] = {
NULL
};
static struct attribute *hwmon_power_caps_attributes[] = {
&sensor_dev_attr_power1_max.dev_attr.attr,
&sensor_dev_attr_power1_crit.dev_attr.attr,
NULL
};
static const struct attribute_group hwmon_default_attrgroup = {
.attrs = hwmon_default_attributes,
};
@ -657,6 +689,9 @@ static const struct attribute_group hwmon_in0_attrgroup = {
static const struct attribute_group hwmon_power_attrgroup = {
.attrs = hwmon_power_attributes,
};
static const struct attribute_group hwmon_power_caps_attrgroup = {
.attrs = hwmon_power_caps_attributes,
};
#endif
int
@ -728,8 +763,16 @@ nouveau_hwmon_init(struct drm_device *dev)
if (iccsense && iccsense->data_valid && !list_empty(&iccsense->rails)) {
ret = sysfs_create_group(&hwmon_dev->kobj,
&hwmon_power_attrgroup);
if (ret)
goto error;
if (iccsense->power_w_max && iccsense->power_w_crit) {
ret = sysfs_create_group(&hwmon_dev->kobj,
&hwmon_power_caps_attrgroup);
if (ret)
goto error;
}
}
hwmon->hwmon = hwmon_dev;
@ -759,6 +802,7 @@ nouveau_hwmon_fini(struct drm_device *dev)
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_fan_rpm_attrgroup);
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_in0_attrgroup);
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_power_attrgroup);
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_power_caps_attrgroup);
hwmon_device_unregister(hwmon->hwmon);
}