[Nouveau] [PATCH 3/3] hwmon: expose power_max and power_crit

[Karol Herbst]

Signed-off-by: Karol Herbst <karolher...@gmail.com>
---
 drm/nouveau/nouveau_hwmon.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drm/nouveau/nouveau_hwmon.c b/drm/nouveau/nouveau_hwmon.c
index 71f764b..3d4672a 100644
--- a/drm/nouveau/nouveau_hwmon.c
+++ b/drm/nouveau/nouveau_hwmon.c
@@ -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->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->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);
        }
-- 
2.10.0

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