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drm/nouveau/nouveau/perfmon: add interface files for current core voltage

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Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Karol Herbst 2015-09-20 14:40:27 +02:00 committed by Ben Skeggs
parent fcc95ce90f
commit 2e7db87dee
2 changed files with 51 additions and 0 deletions
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1
drivers/gpu/drm/nouveau/include/nvif/device.h
View File

@ -63,6 +63,7 @@ u64 nvif_device_time(struct nvif_device *);
#define nvxx_clk(a) nvxx_device(a)->clk
#define nvxx_i2c(a) nvxx_device(a)->i2c
#define nvxx_therm(a) nvxx_device(a)->therm
#define nvxx_volt(a) nvxx_device(a)->volt
#include <core/device.h>
#include <engine/fifo.h>

50
drivers/gpu/drm/nouveau/nouveau_hwmon.c
View File

@ -34,6 +34,8 @@
#include "nouveau_drm.h"
#include "nouveau_hwmon.h"
#include <nvkm/subdev/volt.h>
#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
static ssize_t
nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
@ -512,6 +514,35 @@ static SENSOR_DEVICE_ATTR(pwm1_max, S_IRUGO | S_IWUSR,
nouveau_hwmon_get_pwm1_max,
nouveau_hwmon_set_pwm1_max, 0);
static ssize_t
nouveau_hwmon_get_in0_input(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_volt *volt = nvxx_volt(&drm->device);
int ret;
ret = nvkm_volt_get(volt);
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", ret / 1000);
}
static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO,
nouveau_hwmon_get_in0_input, NULL, 0);
static ssize_t
nouveau_hwmon_get_in0_label(struct device *d,
struct device_attribute *a, char *buf)
{
return sprintf(buf, "GPU core\n");
}
static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO,
nouveau_hwmon_get_in0_label, NULL, 0);
static struct attribute *hwmon_default_attributes[] = {
&sensor_dev_attr_name.dev_attr.attr,
&sensor_dev_attr_update_rate.dev_attr.attr,
@ -542,6 +573,12 @@ static struct attribute *hwmon_pwm_fan_attributes[] = {
NULL
};
static struct attribute *hwmon_in0_attributes[] = {
&sensor_dev_attr_in0_input.dev_attr.attr,
&sensor_dev_attr_in0_label.dev_attr.attr,
NULL
};
static const struct attribute_group hwmon_default_attrgroup = {
.attrs = hwmon_default_attributes,
};
@ -554,6 +591,9 @@ static const struct attribute_group hwmon_fan_rpm_attrgroup = {
static const struct attribute_group hwmon_pwm_fan_attrgroup = {
.attrs = hwmon_pwm_fan_attributes,
};
static const struct attribute_group hwmon_in0_attrgroup = {
.attrs = hwmon_in0_attributes,
};
#endif
int
@ -562,6 +602,7 @@ nouveau_hwmon_init(struct drm_device *dev)
#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvkm_therm *therm = nvxx_therm(&drm->device);
struct nvkm_volt *volt = nvxx_volt(&drm->device);
struct nouveau_hwmon *hwmon;
struct device *hwmon_dev;
int ret = 0;
@ -613,6 +654,14 @@ nouveau_hwmon_init(struct drm_device *dev)
goto error;
}
if (volt && nvkm_volt_get(volt) >= 0) {
ret = sysfs_create_group(&hwmon_dev->kobj,
&hwmon_in0_attrgroup);
if (ret)
goto error;
}
hwmon->hwmon = hwmon_dev;
return 0;
@ -638,6 +687,7 @@ nouveau_hwmon_fini(struct drm_device *dev)
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_temp_attrgroup);
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_pwm_fan_attrgroup);
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_fan_rpm_attrgroup);
sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_in0_attrgroup);
hwmon_device_unregister(hwmon->hwmon);
}