diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_pm.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_pm.c | 949 |
1 files changed, 0 insertions, 949 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c deleted file mode 100644 index da3e7c3abab..00000000000 --- a/drivers/gpu/drm/nouveau/nouveau_pm.c +++ /dev/null @@ -1,949 +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) { - 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->fan.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; - - ret = pm->pwm_set(dev, gpio.line, divs, duty); - if (!ret) - pm->fan.percent = percent; - return ret; - } - - 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)) { - ret = PTR_ERR(state); - goto error; - } - ret = pm->clocks_set(dev, state); - if (ret) - goto error; - - ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur); - if (ret) - return ret; - - pm->cur = perflvl; - return 0; - -error: - /* restore the fan speed and voltage before leaving */ - nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur); - return ret; -} - -void -nouveau_pm_trigger(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_profile *profile = NULL; - struct nouveau_pm_level *perflvl = NULL; - int ret; - - /* select power profile based on current power source */ - if (power_supply_is_system_supplied()) - profile = pm->profile_ac; - else - profile = pm->profile_dc; - - if (profile != pm->profile) { - pm->profile->func->fini(pm->profile); - pm->profile = profile; - pm->profile->func->init(pm->profile); - } - - /* select performance level based on profile */ - perflvl = profile->func->select(profile); - - /* change perflvl, if necessary */ - if (perflvl != pm->cur) { - struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer; - u64 time0 = ptimer->read(dev); - - NV_INFO(dev, "setting performance level: %d", perflvl->id); - ret = nouveau_pm_perflvl_set(dev, perflvl); - if (ret) - NV_INFO(dev, "> reclocking failed: %d\n\n", ret); - - NV_INFO(dev, "> reclocking took %lluns\n\n", - ptimer->read(dev) - time0); - } -} - -static struct nouveau_pm_profile * -profile_find(struct drm_device *dev, const char *string) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_pm_engine *pm = &dev_priv->engine.pm; - struct nouveau_pm_profile *profile; - - list_for_each_entry(profile, &pm->profiles, head) { - if (!strncmp(profile->name, string, sizeof(profile->name))) - return profile; - } - - return NULL; -} - -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_profile *ac = NULL, *dc = NULL; - char string[16], *cur = string, *ptr; - - /* safety precaution, for now */ - if (nouveau_perflvl_wr != 7777) - return -EPERM; - - strncpy(string, profile, sizeof(string)); - string[sizeof(string) - 1] = 0; - if ((ptr = strchr(string, '\n'))) - *ptr = '\0'; - - ptr = strsep(&cur, ","); - if (ptr) - ac = profile_find(dev, ptr); - - ptr = strsep(&cur, ","); - if (ptr) - dc = profile_find(dev, ptr); - else - dc = ac; - - if (ac == NULL || dc == NULL) - return -EINVAL; - - pm->profile_ac = ac; - pm->profile_dc = dc; - nouveau_pm_trigger(dev); - return 0; -} - -static void -nouveau_pm_static_dummy(struct nouveau_pm_profile *profile) -{ -} - -static struct nouveau_pm_level * -nouveau_pm_static_select(struct nouveau_pm_profile *profile) -{ - return container_of(profile, struct nouveau_pm_level, profile); -} - -const struct nouveau_pm_profile_func nouveau_pm_static_profile_func = { - .destroy = nouveau_pm_static_dummy, - .init = nouveau_pm_static_dummy, - .fini = nouveau_pm_static_dummy, - .select = nouveau_pm_static_select, -}; - -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)); - - if (pm->clocks_get) { - 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; - - nouveau_mem_timing_read(dev, &perflvl->timing); - 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], 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); - - snprintf(ptr, len, "%s%s%s%s%s\n", c, s, m, v, f); -} - -static ssize_t -nouveau_pm_get_perflvl_info(struct device *d, - struct device_attribute *a, char *buf) -{ - struct nouveau_pm_level *perflvl = - container_of(a, struct nouveau_pm_level, dev_attr); - 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; - - snprintf(ptr, len, "profile: %s, %s\nc:", - pm->profile_ac->name, pm->profile_dc->name); - 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 (kstrtol(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 (kstrtol(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 (kstrtol(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 (kstrtol(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 (kstrtol(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"); - nouveau_pm_trigger(dev); - } - - 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; - - /* parse aux tables from vbios */ - nouveau_volt_init(dev); - nouveau_temp_init(dev); - - /* determine current ("boot") performance level */ - ret = nouveau_pm_perflvl_get(dev, &pm->boot); - if (ret) { - NV_ERROR(dev, "failed to determine boot perflvl\n"); - return ret; - } - - strncpy(pm->boot.name, "boot", 4); - strncpy(pm->boot.profile.name, "boot", 4); - pm->boot.profile.func = &nouveau_pm_static_profile_func; - - INIT_LIST_HEAD(&pm->profiles); - list_add(&pm->boot.profile.head, &pm->profiles); - - pm->profile_ac = &pm->boot.profile; - pm->profile_dc = &pm->boot.profile; - pm->profile = &pm->boot.profile; - pm->cur = &pm->boot; - - /* add performance levels from vbios */ - nouveau_perf_init(dev); - - /* display available performance levels */ - 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); - } - - 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) - nouveau_pm_profile_set(dev, nouveau_perflvl); - - /* determine the current fan speed */ - pm->fan.percent = nouveau_pwmfan_get(dev); - - 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; - struct nouveau_pm_profile *profile, *tmp; - - list_for_each_entry_safe(profile, tmp, &pm->profiles, head) { - list_del(&profile->head); - profile->func->destroy(profile); - } - - if (pm->cur != &pm->boot) - nouveau_pm_perflvl_set(dev, &pm->boot); - - nouveau_temp_fini(dev); - nouveau_perf_fini(dev); - nouveau_volt_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); - nouveau_pwmfan_set(dev, pm->fan.percent); -} |