1 files changed, 0 insertions, 843 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
deleted file mode 100644
index 9064d7f1979..00000000000
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ /dev/null
@@ -1,843 +0,0 @@
-/*
- * 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
- */
-
-#include "drmP.h"
-
-#include "nouveau_drv.h"
-#include "nouveau_pm.h"
-#include "nouveau_gpio.h"
-
-#ifdef CONFIG_ACPI
-#include <linux/acpi.h>
-#endif
-#include <linux/power_supply.h>
-#include <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-
-static int
-nouveau_pwmfan_get(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct gpio_func gpio;
-	u32 divs, duty;
-	int ret;
-
-	if (!pm->pwm_get)
-		return -ENODEV;
-
-	ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
-	if (ret == 0) {
-		ret = pm->pwm_get(dev, gpio.line, &divs, &duty);
-		if (ret == 0) {
-			divs = max(divs, duty);
-			if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
-				duty = divs - duty;
-			return (duty * 100) / divs;
-		}
-
-		return nouveau_gpio_func_get(dev, gpio.func) * 100;
-	}
-
-	return -ENODEV;
-}
-
-static int
-nouveau_pwmfan_set(struct drm_device *dev, int percent)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct gpio_func gpio;
-	u32 divs, duty;
-	int ret;
-
-	if (!pm->pwm_set)
-		return -ENODEV;
-
-	ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
-	if (ret == 0) {
-		divs = pm->pwm_divisor;
-		if (pm->fan.pwm_freq) {
-			/*XXX: PNVIO clock more than likely... */
-			divs = 135000 / pm->fan.pwm_freq;
-			if (dev_priv->chipset < 0xa3)
-				divs /= 4;
-		}
-
-		duty = ((divs * percent) + 99) / 100;
-		if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
-			duty = divs - duty;
-
-		return pm->pwm_set(dev, gpio.line, divs, duty);
-	}
-
-	return -ENODEV;
-}
-
-static int
-nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl,
-		       struct nouveau_pm_level *a, struct nouveau_pm_level *b)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	int ret;
-
-	/*XXX: not on all boards, we should control based on temperature
-	 *     on recent boards..  or maybe on some other factor we don't
-	 *     know about?
-	 */
-	if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) {
-		ret = nouveau_pwmfan_set(dev, perflvl->fanspeed);
-		if (ret && ret != -ENODEV) {
-			NV_ERROR(dev, "fanspeed set failed: %d\n", ret);
-			return ret;
-		}
-	}
-
-	if (pm->voltage.supported && pm->voltage_set) {
-		if (perflvl->volt_min && b->volt_min > a->volt_min) {
-			ret = pm->voltage_set(dev, perflvl->volt_min);
-			if (ret) {
-				NV_ERROR(dev, "voltage set failed: %d\n", ret);
-				return ret;
-			}
-		}
-	}
-
-	return 0;
-}
-
-static int
-nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	void *state;
-	int ret;
-
-	if (perflvl == pm->cur)
-		return 0;
-
-	ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
-	if (ret)
-		return ret;
-
-	state = pm->clocks_pre(dev, perflvl);
-	if (IS_ERR(state))
-		return PTR_ERR(state);
-	pm->clocks_set(dev, state);
-
-	ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
-	if (ret)
-		return ret;
-
-	pm->cur = perflvl;
-	return 0;
-}
-
-static int
-nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_level *perflvl = NULL;
-
-	/* safety precaution, for now */
-	if (nouveau_perflvl_wr != 7777)
-		return -EPERM;
-
-	if (!strncmp(profile, "boot", 4))
-		perflvl = &pm->boot;
-	else {
-		int pl = simple_strtol(profile, NULL, 10);
-		int i;
-
-		for (i = 0; i < pm->nr_perflvl; i++) {
-			if (pm->perflvl[i].id == pl) {
-				perflvl = &pm->perflvl[i];
-				break;
-			}
-		}
-
-		if (!perflvl)
-			return -EINVAL;
-	}
-
-	NV_INFO(dev, "setting performance level: %s\n", profile);
-	return nouveau_pm_perflvl_set(dev, perflvl);
-}
-
-static int
-nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	int ret;
-
-	memset(perflvl, 0, sizeof(*perflvl));
-
-	ret = pm->clocks_get(dev, perflvl);
-	if (ret)
-		return ret;
-
-	if (pm->voltage.supported && pm->voltage_get) {
-		ret = pm->voltage_get(dev);
-		if (ret > 0) {
-			perflvl->volt_min = ret;
-			perflvl->volt_max = ret;
-		}
-	}
-
-	ret = nouveau_pwmfan_get(dev);
-	if (ret > 0)
-		perflvl->fanspeed = ret;
-
-	return 0;
-}
-
-static void
-nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
-{
-	char c[16], s[16], v[32], f[16], t[16], m[16];
-
-	c[0] = '\0';
-	if (perflvl->core)
-		snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
-
-	s[0] = '\0';
-	if (perflvl->shader)
-		snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
-
-	m[0] = '\0';
-	if (perflvl->memory)
-		snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
-
-	v[0] = '\0';
-	if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
-		snprintf(v, sizeof(v), " voltage %dmV-%dmV",
-			 perflvl->volt_min / 1000, perflvl->volt_max / 1000);
-	} else
-	if (perflvl->volt_min) {
-		snprintf(v, sizeof(v), " voltage %dmV",
-			 perflvl->volt_min / 1000);
-	}
-
-	f[0] = '\0';
-	if (perflvl->fanspeed)
-		snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
-
-	t[0] = '\0';
-	if (perflvl->timing)
-		snprintf(t, sizeof(t), " timing %d", perflvl->timing->id);
-
-	snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f);
-}
-
-static ssize_t
-nouveau_pm_get_perflvl_info(struct device *d,
-			    struct device_attribute *a, char *buf)
-{
-	struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
-	char *ptr = buf;
-	int len = PAGE_SIZE;
-
-	snprintf(ptr, len, "%d:", perflvl->id);
-	ptr += strlen(buf);
-	len -= strlen(buf);
-
-	nouveau_pm_perflvl_info(perflvl, ptr, len);
-	return strlen(buf);
-}
-
-static ssize_t
-nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
-{
-	struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_level cur;
-	int len = PAGE_SIZE, ret;
-	char *ptr = buf;
-
-	if (!pm->cur)
-		snprintf(ptr, len, "setting: boot\n");
-	else if (pm->cur == &pm->boot)
-		snprintf(ptr, len, "setting: boot\nc:");
-	else
-		snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id);
-	ptr += strlen(buf);
-	len -= strlen(buf);
-
-	ret = nouveau_pm_perflvl_get(dev, &cur);
-	if (ret == 0)
-		nouveau_pm_perflvl_info(&cur, ptr, len);
-	return strlen(buf);
-}
-
-static ssize_t
-nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
-		       const char *buf, size_t count)
-{
-	struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
-	int ret;
-
-	ret = nouveau_pm_profile_set(dev, buf);
-	if (ret)
-		return ret;
-	return strlen(buf);
-}
-
-static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
-		   nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
-
-static int
-nouveau_sysfs_init(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct device *d = &dev->pdev->dev;
-	int ret, i;
-
-	ret = device_create_file(d, &dev_attr_performance_level);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < pm->nr_perflvl; i++) {
-		struct nouveau_pm_level *perflvl = &pm->perflvl[i];
-
-		perflvl->dev_attr.attr.name = perflvl->name;
-		perflvl->dev_attr.attr.mode = S_IRUGO;
-		perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
-		perflvl->dev_attr.store = NULL;
-		sysfs_attr_init(&perflvl->dev_attr.attr);
-
-		ret = device_create_file(d, &perflvl->dev_attr);
-		if (ret) {
-			NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
-				 perflvl->id, i);
-			perflvl->dev_attr.attr.name = NULL;
-			nouveau_pm_fini(dev);
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
-static void
-nouveau_sysfs_fini(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct device *d = &dev->pdev->dev;
-	int i;
-
-	device_remove_file(d, &dev_attr_performance_level);
-	for (i = 0; i < pm->nr_perflvl; i++) {
-		struct nouveau_pm_level *pl = &pm->perflvl[i];
-
-		if (!pl->dev_attr.attr.name)
-			break;
-
-		device_remove_file(d, &pl->dev_attr);
-	}
-}
-
-#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 drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000);
-}
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
-						  NULL, 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 drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000);
-}
-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 drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
-	long value;
-
-	if (strict_strtol(buf, 10, &value) == -EINVAL)
-		return count;
-
-	temp->down_clock = value/1000;
-
-	nouveau_temp_safety_checks(dev);
-
-	return count;
-}
-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_critical_temp(struct device *d, struct device_attribute *a,
-							char *buf)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
-
-	return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000);
-}
-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 drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
-	long value;
-
-	if (strict_strtol(buf, 10, &value) == -EINVAL)
-		return count;
-
-	temp->critical = value/1000;
-
-	nouveau_temp_safety_checks(dev);
-
-	return count;
-}
-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_show_name(struct device *dev,
-				      struct device_attribute *attr,
-				      char *buf)
-{
-	return sprintf(buf, "nouveau\n");
-}
-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");
-}
-static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
-						nouveau_hwmon_show_update_rate,
-						NULL, 0);
-
-static ssize_t
-nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
-			      char *buf)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
-	struct gpio_func gpio;
-	u32 cycles, cur, prev;
-	u64 start;
-	int ret;
-
-	ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio);
-	if (ret)
-		return ret;
-
-	/* Monitor the GPIO input 0x3b for 250ms.
-	 * When the fan spins, it changes the value of GPIO FAN_SENSE.
-	 * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation.
-	 */
-	start = ptimer->read(dev);
-	prev = nouveau_gpio_sense(dev, 0, gpio.line);
-	cycles = 0;
-	do {
-		cur = nouveau_gpio_sense(dev, 0, gpio.line);
-		if (prev != cur) {
-			cycles++;
-			prev = cur;
-		}
-
-		usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
-	} while (ptimer->read(dev) - start < 250000000);
-
-	/* interpolate to get rpm */
-	return sprintf(buf, "%i\n", cycles / 4 * 4 * 60);
-}
-static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input,
-			  NULL, 0);
-
-static ssize_t
-nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	int ret;
-
-	ret = nouveau_pwmfan_get(dev);
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%i\n", ret);
-}
-
-static ssize_t
-nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a,
-		       const char *buf, size_t count)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	int ret = -ENODEV;
-	long value;
-
-	if (nouveau_perflvl_wr != 7777)
-		return -EPERM;
-
-	if (strict_strtol(buf, 10, &value) == -EINVAL)
-		return -EINVAL;
-
-	if (value < pm->fan.min_duty)
-		value = pm->fan.min_duty;
-	if (value > pm->fan.max_duty)
-		value = pm->fan.max_duty;
-
-	ret = nouveau_pwmfan_set(dev, value);
-	if (ret)
-		return ret;
-
-	return count;
-}
-
-static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR,
-			  nouveau_hwmon_get_pwm0,
-			  nouveau_hwmon_set_pwm0, 0);
-
-static ssize_t
-nouveau_hwmon_get_pwm0_min(struct device *d,
-			   struct device_attribute *a, char *buf)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-
-	return sprintf(buf, "%i\n", pm->fan.min_duty);
-}
-
-static ssize_t
-nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a,
-			   const char *buf, size_t count)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	long value;
-
-	if (strict_strtol(buf, 10, &value) == -EINVAL)
-		return -EINVAL;
-
-	if (value < 0)
-		value = 0;
-
-	if (pm->fan.max_duty - value < 10)
-		value = pm->fan.max_duty - 10;
-
-	if (value < 10)
-		pm->fan.min_duty = 10;
-	else
-		pm->fan.min_duty = value;
-
-	return count;
-}
-
-static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR,
-			  nouveau_hwmon_get_pwm0_min,
-			  nouveau_hwmon_set_pwm0_min, 0);
-
-static ssize_t
-nouveau_hwmon_get_pwm0_max(struct device *d,
-			   struct device_attribute *a, char *buf)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-
-	return sprintf(buf, "%i\n", pm->fan.max_duty);
-}
-
-static ssize_t
-nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a,
-			   const char *buf, size_t count)
-{
-	struct drm_device *dev = dev_get_drvdata(d);
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	long value;
-
-	if (strict_strtol(buf, 10, &value) == -EINVAL)
-		return -EINVAL;
-
-	if (value < 0)
-		value = 0;
-
-	if (value - pm->fan.min_duty < 10)
-		value = pm->fan.min_duty + 10;
-
-	if (value > 100)
-		pm->fan.max_duty = 100;
-	else
-		pm->fan.max_duty = value;
-
-	return count;
-}
-
-static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR,
-			  nouveau_hwmon_get_pwm0_max,
-			  nouveau_hwmon_set_pwm0_max, 0);
-
-static struct attribute *hwmon_attributes[] = {
-	&sensor_dev_attr_temp1_input.dev_attr.attr,
-	&sensor_dev_attr_temp1_max.dev_attr.attr,
-	&sensor_dev_attr_temp1_crit.dev_attr.attr,
-	&sensor_dev_attr_name.dev_attr.attr,
-	&sensor_dev_attr_update_rate.dev_attr.attr,
-	NULL
-};
-static struct attribute *hwmon_fan_rpm_attributes[] = {
-	&sensor_dev_attr_fan0_input.dev_attr.attr,
-	NULL
-};
-static struct attribute *hwmon_pwm_fan_attributes[] = {
-	&sensor_dev_attr_pwm0.dev_attr.attr,
-	&sensor_dev_attr_pwm0_min.dev_attr.attr,
-	&sensor_dev_attr_pwm0_max.dev_attr.attr,
-	NULL
-};
-
-static const struct attribute_group hwmon_attrgroup = {
-	.attrs = hwmon_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,
-};
-#endif
-
-static int
-nouveau_hwmon_init(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
-	struct device *hwmon_dev;
-	int ret = 0;
-
-	if (!pm->temp_get)
-		return -ENODEV;
-
-	hwmon_dev = hwmon_device_register(&dev->pdev->dev);
-	if (IS_ERR(hwmon_dev)) {
-		ret = PTR_ERR(hwmon_dev);
-		NV_ERROR(dev,
-			"Unable to register hwmon device: %d\n", ret);
-		return ret;
-	}
-	dev_set_drvdata(hwmon_dev, dev);
-
-	/* default sysfs entries */
-	ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
-	if (ret) {
-		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 (nouveau_pwmfan_get(dev) >= 0) {
-		ret = sysfs_create_group(&dev->pdev->dev.kobj,
-					 &hwmon_pwm_fan_attrgroup);
-		if (ret)
-			goto error;
-	}
-
-	/* if the card can read the fan rpm */
-	if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) {
-		ret = sysfs_create_group(&dev->pdev->dev.kobj,
-					 &hwmon_fan_rpm_attrgroup);
-		if (ret)
-			goto error;
-	}
-
-	pm->hwmon = hwmon_dev;
-
-	return 0;
-
-error:
-	NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret);
-	hwmon_device_unregister(hwmon_dev);
-	pm->hwmon = NULL;
-	return ret;
-#else
-	pm->hwmon = NULL;
-	return 0;
-#endif
-}
-
-static void
-nouveau_hwmon_fini(struct drm_device *dev)
-{
-#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-
-	if (pm->hwmon) {
-		sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
-		sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_pwm_fan_attrgroup);
-		sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup);
-
-		hwmon_device_unregister(pm->hwmon);
-	}
-#endif
-}
-
-#if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
-static int
-nouveau_pm_acpi_event(struct notifier_block *nb, unsigned long val, void *data)
-{
-	struct drm_nouveau_private *dev_priv =
-		container_of(nb, struct drm_nouveau_private, engine.pm.acpi_nb);
-	struct drm_device *dev = dev_priv->dev;
-	struct acpi_bus_event *entry = (struct acpi_bus_event *)data;
-
-	if (strcmp(entry->device_class, "ac_adapter") == 0) {
-		bool ac = power_supply_is_system_supplied();
-
-		NV_DEBUG(dev, "power supply changed: %s\n", ac ? "AC" : "DC");
-	}
-
-	return NOTIFY_OK;
-}
-#endif
-
-int
-nouveau_pm_init(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	char info[256];
-	int ret, i;
-
-	nouveau_mem_timing_init(dev);
-	nouveau_volt_init(dev);
-	nouveau_perf_init(dev);
-	nouveau_temp_init(dev);
-
-	NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
-	for (i = 0; i < pm->nr_perflvl; i++) {
-		nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
-		NV_INFO(dev, "%d:%s", pm->perflvl[i].id, info);
-	}
-
-	/* determine current ("boot") performance level */
-	ret = nouveau_pm_perflvl_get(dev, &pm->boot);
-	if (ret == 0) {
-		strncpy(pm->boot.name, "boot", 4);
-		pm->cur = &pm->boot;
-
-		nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
-		NV_INFO(dev, "c:%s", info);
-	}
-
-	/* switch performance levels now if requested */
-	if (nouveau_perflvl != NULL) {
-		ret = nouveau_pm_profile_set(dev, nouveau_perflvl);
-		if (ret) {
-			NV_ERROR(dev, "error setting perflvl \"%s\": %d\n",
-				 nouveau_perflvl, ret);
-		}
-	}
-
-	nouveau_sysfs_init(dev);
-	nouveau_hwmon_init(dev);
-#if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
-	pm->acpi_nb.notifier_call = nouveau_pm_acpi_event;
-	register_acpi_notifier(&pm->acpi_nb);
-#endif
-
-	return 0;
-}
-
-void
-nouveau_pm_fini(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-
-	if (pm->cur != &pm->boot)
-		nouveau_pm_perflvl_set(dev, &pm->boot);
-
-	nouveau_temp_fini(dev);
-	nouveau_perf_fini(dev);
-	nouveau_volt_fini(dev);
-	nouveau_mem_timing_fini(dev);
-
-#if defined(CONFIG_ACPI) && defined(CONFIG_POWER_SUPPLY)
-	unregister_acpi_notifier(&pm->acpi_nb);
-#endif
-	nouveau_hwmon_fini(dev);
-	nouveau_sysfs_fini(dev);
-}
-
-void
-nouveau_pm_resume(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	struct nouveau_pm_level *perflvl;
-
-	if (!pm->cur || pm->cur == &pm->boot)
-		return;
-
-	perflvl = pm->cur;
-	pm->cur = &pm->boot;
-	nouveau_pm_perflvl_set(dev, perflvl);
-}