Release 4.7 drivers/gpu/drm/nouveau/nouveau_hwmon.c
  
  
/*
 * Copyright 2010 Red Hat Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: Ben Skeggs
 */
#ifdef CONFIG_ACPI
#include <linux/acpi.h>
#endif
#include <linux/power_supply.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <drm/drmP.h>
#include "nouveau_drv.h"
#include "nouveau_hwmon.h"
#include <nvkm/subdev/iccsense.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)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	int temp = nvkm_therm_temp_get(therm);
	if (temp < 0)
		return temp;
	return snprintf(buf, PAGE_SIZE, "%d\n", temp * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 75 | 89.29% | 11 | 84.62% | 
| martin peres | martin peres | 9 | 10.71% | 2 | 15.38% | 
 | Total | 84 | 100.00% | 13 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
						  NULL, 0);
static ssize_t
nouveau_hwmon_show_temp1_auto_point1_pwm(struct device *d,
					 struct device_attribute *a, char *buf)
{
	return snprintf(buf, PAGE_SIZE, "%d\n", 100);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 32 | 100.00% | 3 | 100.00% | 
 | Total | 32 | 100.00% | 3 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_auto_point1_pwm, S_IRUGO,
			  nouveau_hwmon_show_temp1_auto_point1_pwm, NULL, 0);
static ssize_t
nouveau_hwmon_temp1_auto_point1_temp(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	      therm->attr_get(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 74 | 100.00% | 10 | 100.00% | 
 | Total | 74 | 100.00% | 10 | 100.00% | 
static ssize_t
nouveau_hwmon_set_temp1_auto_point1_temp(struct device *d,
					 struct device_attribute *a,
					 const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST,
			value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 87 | 92.55% | 8 | 80.00% | 
| martin peres | martin peres | 7 | 7.45% | 2 | 20.00% | 
 | Total | 94 | 100.00% | 10 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_temp1_auto_point1_temp,
			  nouveau_hwmon_set_temp1_auto_point1_temp, 0);
static ssize_t
nouveau_hwmon_temp1_auto_point1_temp_hyst(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	 therm->attr_get(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 74 | 100.00% | 9 | 100.00% | 
 | Total | 74 | 100.00% | 9 | 100.00% | 
static ssize_t
nouveau_hwmon_set_temp1_auto_point1_temp_hyst(struct device *d,
					      struct device_attribute *a,
					      const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_FAN_BOOST_HYST,
			value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 94 | 100.00% | 10 | 100.00% | 
 | Total | 94 | 100.00% | 10 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_temp1_auto_point1_temp_hyst,
			  nouveau_hwmon_set_temp1_auto_point1_temp_hyst, 0);
static ssize_t
nouveau_hwmon_max_temp(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	       therm->attr_get(therm, NVKM_THERM_ATTR_THRS_DOWN_CLK) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 73 | 98.65% | 9 | 90.00% | 
| martin peres | martin peres | 1 | 1.35% | 1 | 10.00% | 
 | Total | 74 | 100.00% | 10 | 100.00% | 
static ssize_t
nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
						const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_DOWN_CLK, value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 91 | 96.81% | 9 | 90.00% | 
| martin peres | martin peres | 3 | 3.19% | 1 | 10.00% | 
 | Total | 94 | 100.00% | 10 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
						  nouveau_hwmon_set_max_temp,
						  0);
static ssize_t
nouveau_hwmon_max_temp_hyst(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	  therm->attr_get(therm, NVKM_THERM_ATTR_THRS_DOWN_CLK_HYST) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 68 | 91.89% | 8 | 88.89% | 
| martin peres | martin peres | 6 | 8.11% | 1 | 11.11% | 
 | Total | 74 | 100.00% | 9 | 100.00% | 
static ssize_t
nouveau_hwmon_set_max_temp_hyst(struct device *d, struct device_attribute *a,
						const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_DOWN_CLK_HYST,
			value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 85 | 90.43% | 11 | 84.62% | 
| martin peres | martin peres | 9 | 9.57% | 2 | 15.38% | 
 | Total | 94 | 100.00% | 13 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_max_temp_hyst,
			  nouveau_hwmon_set_max_temp_hyst, 0);
static ssize_t
nouveau_hwmon_critical_temp(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	       therm->attr_get(therm, NVKM_THERM_ATTR_THRS_CRITICAL) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 71 | 95.95% | 8 | 88.89% | 
| martin peres | martin peres | 3 | 4.05% | 1 | 11.11% | 
 | Total | 74 | 100.00% | 9 | 100.00% | 
static ssize_t
nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
							    const char *buf,
								size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_CRITICAL, value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 92 | 97.87% | 8 | 88.89% | 
| francisco jerez | francisco jerez | 2 | 2.13% | 1 | 11.11% | 
 | Total | 94 | 100.00% | 9 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
						nouveau_hwmon_critical_temp,
						nouveau_hwmon_set_critical_temp,
						0);
static ssize_t
nouveau_hwmon_critical_temp_hyst(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	  therm->attr_get(therm, NVKM_THERM_ATTR_THRS_CRITICAL_HYST) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 71 | 95.95% | 9 | 90.00% | 
| martin peres | martin peres | 3 | 4.05% | 1 | 10.00% | 
 | Total | 74 | 100.00% | 10 | 100.00% | 
static ssize_t
nouveau_hwmon_set_critical_temp_hyst(struct device *d,
				     struct device_attribute *a,
				     const char *buf,
				     size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_CRITICAL_HYST,
			value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 94 | 100.00% | 12 | 100.00% | 
 | Total | 94 | 100.00% | 12 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_critical_temp_hyst,
			  nouveau_hwmon_set_critical_temp_hyst, 0);
static ssize_t
nouveau_hwmon_emergency_temp(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	       therm->attr_get(therm, NVKM_THERM_ATTR_THRS_SHUTDOWN) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 72 | 97.30% | 8 | 88.89% | 
| francisco jerez | francisco jerez | 2 | 2.70% | 1 | 11.11% | 
 | Total | 74 | 100.00% | 9 | 100.00% | 
static ssize_t
nouveau_hwmon_set_emergency_temp(struct device *d, struct device_attribute *a,
							    const char *buf,
								size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_SHUTDOWN, value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 93 | 98.94% | 8 | 88.89% | 
| martin peres | martin peres | 1 | 1.06% | 1 | 11.11% | 
 | Total | 94 | 100.00% | 9 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_emergency, S_IRUGO | S_IWUSR,
					nouveau_hwmon_emergency_temp,
					nouveau_hwmon_set_emergency_temp,
					0);
static ssize_t
nouveau_hwmon_emergency_temp_hyst(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_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n",
	  therm->attr_get(therm, NVKM_THERM_ATTR_THRS_SHUTDOWN_HYST) * 1000);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 74 | 100.00% | 7 | 100.00% | 
 | Total | 74 | 100.00% | 7 | 100.00% | 
static ssize_t
nouveau_hwmon_set_emergency_temp_hyst(struct device *d,
				      struct device_attribute *a,
				      const char *buf,
				      size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return count;
	therm->attr_set(therm, NVKM_THERM_ATTR_THRS_SHUTDOWN_HYST,
			value / 1000);
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 76 | 80.85% | 8 | 72.73% | 
| martin peres | martin peres | 18 | 19.15% | 3 | 27.27% | 
 | Total | 94 | 100.00% | 11 | 100.00% | 
static SENSOR_DEVICE_ATTR(temp1_emergency_hyst, S_IRUGO | S_IWUSR,
					nouveau_hwmon_emergency_temp_hyst,
					nouveau_hwmon_set_emergency_temp_hyst,
					0);
static ssize_t nouveau_hwmon_show_name(struct device *dev,
				      struct device_attribute *attr,
				      char *buf)
{
	return sprintf(buf, "nouveau\n");
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 18 | 64.29% | 1 | 33.33% | 
| ben skeggs | ben skeggs | 10 | 35.71% | 2 | 66.67% | 
 | Total | 28 | 100.00% | 3 | 100.00% | 
static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
				      struct device_attribute *attr,
				      char *buf)
{
	return sprintf(buf, "1000\n");
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 25 | 89.29% | 1 | 50.00% | 
| martin peres | martin peres | 3 | 10.71% | 1 | 50.00% | 
 | Total | 28 | 100.00% | 2 | 100.00% | 
static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
						nouveau_hwmon_show_update_rate,
						NULL, 0);
static ssize_t
nouveau_hwmon_show_fan1_input(struct device *d, struct device_attribute *attr,
			      char *buf)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	return snprintf(buf, PAGE_SIZE, "%d\n", nvkm_therm_fan_sense(therm));
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 62 | 91.18% | 1 | 16.67% | 
| ben skeggs | ben skeggs | 6 | 8.82% | 5 | 83.33% | 
 | Total | 68 | 100.00% | 6 | 100.00% | 
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, nouveau_hwmon_show_fan1_input,
			  NULL, 0);
 
static ssize_t
nouveau_hwmon_get_pwm1_enable(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_therm *therm = nvxx_therm(&drm->device);
	int ret;
	ret = therm->attr_get(therm, NVKM_THERM_ATTR_FAN_MODE);
	if (ret < 0)
		return ret;
	return sprintf(buf, "%i\n", ret);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 51 | 59.30% | 1 | 16.67% | 
| ben skeggs | ben skeggs | 35 | 40.70% | 5 | 83.33% | 
 | Total | 86 | 100.00% | 6 | 100.00% | 
static ssize_t
nouveau_hwmon_set_pwm1_enable(struct device *d, struct device_attribute *a,
			   const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	int ret;
	ret = kstrtol(buf, 10, &value);
	if (ret)
		return ret;
	ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MODE, value);
	if (ret)
		return ret;
	else
		return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 77 | 72.64% | 5 | 71.43% | 
| martin peres | martin peres | 21 | 19.81% | 1 | 14.29% | 
| jingoo han | jingoo han | 8 | 7.55% | 1 | 14.29% | 
 | Total | 106 | 100.00% | 7 | 100.00% | 
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_get_pwm1_enable,
			  nouveau_hwmon_set_pwm1_enable, 0);
static ssize_t
nouveau_hwmon_get_pwm1(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_therm *therm = nvxx_therm(&drm->device);
	int ret;
	ret = therm->fan_get(therm);
	if (ret < 0)
		return ret;
	return sprintf(buf, "%i\n", ret);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 56 | 66.67% | 1 | 20.00% | 
| ben skeggs | ben skeggs | 28 | 33.33% | 4 | 80.00% | 
 | Total | 84 | 100.00% | 5 | 100.00% | 
static ssize_t
nouveau_hwmon_set_pwm1(struct device *d, struct device_attribute *a,
		       const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	int ret = -ENODEV;
	long value;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return -EINVAL;
	ret = therm->fan_set(therm, value);
	if (ret)
		return ret;
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 84 | 79.25% | 1 | 20.00% | 
| ben skeggs | ben skeggs | 22 | 20.75% | 4 | 80.00% | 
 | Total | 106 | 100.00% | 5 | 100.00% | 
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_get_pwm1,
			  nouveau_hwmon_set_pwm1, 0);
static ssize_t
nouveau_hwmon_get_pwm1_min(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_therm *therm = nvxx_therm(&drm->device);
	int ret;
	ret = therm->attr_get(therm, NVKM_THERM_ATTR_FAN_MIN_DUTY);
	if (ret < 0)
		return ret;
	return sprintf(buf, "%i\n", ret);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 56 | 65.12% | 7 | 70.00% | 
| martin peres | martin peres | 30 | 34.88% | 3 | 30.00% | 
 | Total | 86 | 100.00% | 10 | 100.00% | 
static ssize_t
nouveau_hwmon_set_pwm1_min(struct device *d, struct device_attribute *a,
			   const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	int ret;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return -EINVAL;
	ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MIN_DUTY, value);
	if (ret < 0)
		return ret;
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 85 | 79.44% | 1 | 16.67% | 
| ben skeggs | ben skeggs | 22 | 20.56% | 5 | 83.33% | 
 | Total | 107 | 100.00% | 6 | 100.00% | 
static SENSOR_DEVICE_ATTR(pwm1_min, S_IRUGO | S_IWUSR,
			  nouveau_hwmon_get_pwm1_min,
			  nouveau_hwmon_set_pwm1_min, 0);
static ssize_t
nouveau_hwmon_get_pwm1_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_therm *therm = nvxx_therm(&drm->device);
	int ret;
	ret = therm->attr_get(therm, NVKM_THERM_ATTR_FAN_MAX_DUTY);
	if (ret < 0)
		return ret;
	return sprintf(buf, "%i\n", ret);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 58 | 67.44% | 1 | 16.67% | 
| ben skeggs | ben skeggs | 28 | 32.56% | 5 | 83.33% | 
 | Total | 86 | 100.00% | 6 | 100.00% | 
static ssize_t
nouveau_hwmon_set_pwm1_max(struct device *d, struct device_attribute *a,
			   const char *buf, size_t count)
{
	struct drm_device *dev = dev_get_drvdata(d);
	struct nouveau_drm *drm = nouveau_drm(dev);
	struct nvkm_therm *therm = nvxx_therm(&drm->device);
	long value;
	int ret;
	if (kstrtol(buf, 10, &value) == -EINVAL)
		return -EINVAL;
	ret = therm->attr_set(therm, NVKM_THERM_ATTR_FAN_MAX_DUTY, value);
	if (ret < 0)
		return ret;
	return count;
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| martin peres | martin peres | 86 | 80.37% | 1 | 16.67% | 
| ben skeggs | ben skeggs | 21 | 19.63% | 5 | 83.33% | 
 | Total | 107 | 100.00% | 6 | 100.00% | 
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);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| karol herbst | karol herbst | 84 | 100.00% | 1 | 100.00% | 
 | Total | 84 | 100.00% | 1 | 100.00% | 
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");
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| karol herbst | karol herbst | 28 | 100.00% | 1 | 100.00% | 
 | Total | 28 | 100.00% | 1 | 100.00% | 
static SENSOR_DEVICE_ATTR(in0_label, S_IRUGO,
			  nouveau_hwmon_get_in0_label, NULL, 0);
static ssize_t
nouveau_hwmon_get_power1_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_iccsense *iccsense = nvxx_iccsense(&drm->device);
	int result = nvkm_iccsense_read_all(iccsense);
	if (result < 0)
		return result;
	return sprintf(buf, "%i\n", result);
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| karol herbst | karol herbst | 80 | 100.00% | 1 | 100.00% | 
 | Total | 80 | 100.00% | 1 | 100.00% | 
static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO,
			  nouveau_hwmon_get_power1_input, NULL, 0);
static struct attribute *hwmon_default_attributes[] = {
	&sensor_dev_attr_name.dev_attr.attr,
	&sensor_dev_attr_update_rate.dev_attr.attr,
	NULL
};
static struct attribute *hwmon_temp_attributes[] = {
	&sensor_dev_attr_temp1_input.dev_attr.attr,
	&sensor_dev_attr_temp1_auto_point1_pwm.dev_attr.attr,
	&sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
	&sensor_dev_attr_temp1_auto_point1_temp_hyst.dev_attr.attr,
	&sensor_dev_attr_temp1_max.dev_attr.attr,
	&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
	&sensor_dev_attr_temp1_crit.dev_attr.attr,
	&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
	&sensor_dev_attr_temp1_emergency.dev_attr.attr,
	&sensor_dev_attr_temp1_emergency_hyst.dev_attr.attr,
	NULL
};
static struct attribute *hwmon_fan_rpm_attributes[] = {
	&sensor_dev_attr_fan1_input.dev_attr.attr,
	NULL
};
static struct attribute *hwmon_pwm_fan_attributes[] = {
	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
	&sensor_dev_attr_pwm1.dev_attr.attr,
	&sensor_dev_attr_pwm1_min.dev_attr.attr,
	&sensor_dev_attr_pwm1_max.dev_attr.attr,
	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 struct attribute *hwmon_power_attributes[] = {
	&sensor_dev_attr_power1_input.dev_attr.attr,
	NULL
};
static const struct attribute_group hwmon_default_attrgroup = {
	.attrs = hwmon_default_attributes,
};
static const struct attribute_group hwmon_temp_attrgroup = {
	.attrs = hwmon_temp_attributes,
};
static const struct attribute_group hwmon_fan_rpm_attrgroup = {
	.attrs = hwmon_fan_rpm_attributes,
};
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,
};
static const struct attribute_group hwmon_power_attrgroup = {
	.attrs = hwmon_power_attributes,
};
#endif
int
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 nvkm_iccsense *iccsense = nvxx_iccsense(&drm->device);
	struct nouveau_hwmon *hwmon;
	struct device *hwmon_dev;
	int ret = 0;
	hwmon = drm->hwmon = kzalloc(sizeof(*hwmon), GFP_KERNEL);
	if (!hwmon)
		return -ENOMEM;
	hwmon->dev = dev;
	hwmon_dev = hwmon_device_register(dev->dev);
	if (IS_ERR(hwmon_dev)) {
		ret = PTR_ERR(hwmon_dev);
		NV_ERROR(drm, "Unable to register hwmon device: %d\n", ret);
		return ret;
	}
	dev_set_drvdata(hwmon_dev, dev);
	/* set the default attributes */
	ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_default_attrgroup);
	if (ret)
		goto error;
	if (therm && therm->attr_get && therm->attr_set) {
		/* if the card has a working thermal sensor */
		if (nvkm_therm_temp_get(therm) >= 0) {
			ret = sysfs_create_group(&hwmon_dev->kobj, &hwmon_temp_attrgroup);
			if (ret)
				goto error;
		}
		/* if the card has a pwm fan */
		/*XXX: incorrect, need better detection for this, some boards have
                 *     the gpio entries for pwm fan control even when there's no
                 *     actual fan connected to it... therm table? */
		if (therm->fan_get && therm->fan_get(therm) >= 0) {
			ret = sysfs_create_group(&hwmon_dev->kobj,
						 &hwmon_pwm_fan_attrgroup);
			if (ret)
				goto error;
		}
	}
	/* if the card can read the fan rpm */
	if (therm && nvkm_therm_fan_sense(therm) >= 0) {
		ret = sysfs_create_group(&hwmon_dev->kobj,
					 &hwmon_fan_rpm_attrgroup);
		if (ret)
			goto error;
	}
	if (volt && nvkm_volt_get(volt) >= 0) {
		ret = sysfs_create_group(&hwmon_dev->kobj,
					 &hwmon_in0_attrgroup);
		if (ret)
			goto error;
	}
	if (iccsense && iccsense->data_valid && !list_empty(&iccsense->rails)) {
		ret = sysfs_create_group(&hwmon_dev->kobj,
					 &hwmon_power_attrgroup);
		if (ret)
			goto error;
	}
	hwmon->hwmon = hwmon_dev;
	return 0;
error:
	NV_ERROR(drm, "Unable to create some hwmon sysfs files: %d\n", ret);
	hwmon_device_unregister(hwmon_dev);
	hwmon->hwmon = NULL;
	return ret;
#else
	return 0;
#endif
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 255 | 60.57% | 10 | 58.82% | 
| karol herbst | karol herbst | 115 | 27.32% | 4 | 23.53% | 
| martin peres | martin peres | 50 | 11.88% | 2 | 11.76% | 
| roy spliet | roy spliet | 1 | 0.24% | 1 | 5.88% | 
 | Total | 421 | 100.00% | 17 | 100.00% | 
void
nouveau_hwmon_fini(struct drm_device *dev)
{
#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
	struct nouveau_hwmon *hwmon = nouveau_hwmon(dev);
	if (hwmon->hwmon) {
		sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_default_attrgroup);
		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);
		sysfs_remove_group(&hwmon->hwmon->kobj, &hwmon_power_attrgroup);
		hwmon_device_unregister(hwmon->hwmon);
	}
	nouveau_drm(dev)->hwmon = NULL;
	kfree(hwmon);
#endif
}
Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 98 | 66.67% | 6 | 60.00% | 
| karol herbst | karol herbst | 26 | 17.69% | 2 | 20.00% | 
| martin peres | martin peres | 20 | 13.61% | 1 | 10.00% | 
| roy spliet | roy spliet | 3 | 2.04% | 1 | 10.00% | 
 | Total | 147 | 100.00% | 10 | 100.00% | 
Overall Contributors
 | Person | Tokens | Prop | Commits | CommitProp | 
| ben skeggs | ben skeggs | 2496 | 66.51% | 26 | 59.09% | 
| martin peres | martin peres | 788 | 21.00% | 9 | 20.45% | 
| karol herbst | karol herbst | 450 | 11.99% | 4 | 9.09% | 
| jingoo han | jingoo han | 8 | 0.21% | 1 | 2.27% | 
| francisco jerez | francisco jerez | 6 | 0.16% | 2 | 4.55% | 
| roy spliet | roy spliet | 4 | 0.11% | 1 | 2.27% | 
| linus torvalds | linus torvalds | 1 | 0.03% | 1 | 2.27% | 
 | Total | 3753 | 100.00% | 44 | 100.00% | 
  
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