![Dave Airlie](/assets/img/avatar_default.png)
Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
844 lines
22 KiB
C
844 lines
22 KiB
C
/*
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* Copyright 2010 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "drmP.h"
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#include "nouveau_drv.h"
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#include "nouveau_pm.h"
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#include "nouveau_gpio.h"
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#ifdef CONFIG_ACPI
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#include <linux/acpi.h>
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#endif
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#include <linux/power_supply.h>
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#include <linux/hwmon.h>
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#include <linux/hwmon-sysfs.h>
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static int
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nouveau_pwmfan_get(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct gpio_func gpio;
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u32 divs, duty;
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int ret;
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if (!pm->pwm_get)
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return -ENODEV;
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ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
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if (ret == 0) {
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ret = pm->pwm_get(dev, gpio.line, &divs, &duty);
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if (ret == 0) {
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divs = max(divs, duty);
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if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
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duty = divs - duty;
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return (duty * 100) / divs;
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}
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return nouveau_gpio_func_get(dev, gpio.func) * 100;
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}
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return -ENODEV;
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}
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static int
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nouveau_pwmfan_set(struct drm_device *dev, int percent)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct gpio_func gpio;
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u32 divs, duty;
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int ret;
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if (!pm->pwm_set)
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return -ENODEV;
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ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
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if (ret == 0) {
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divs = pm->pwm_divisor;
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if (pm->fan.pwm_freq) {
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/*XXX: PNVIO clock more than likely... */
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divs = 135000 / pm->fan.pwm_freq;
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if (dev_priv->chipset < 0xa3)
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divs /= 4;
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}
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duty = ((divs * percent) + 99) / 100;
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if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
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duty = divs - duty;
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return pm->pwm_set(dev, gpio.line, divs, duty);
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}
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return -ENODEV;
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}
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static int
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nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl,
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struct nouveau_pm_level *a, struct nouveau_pm_level *b)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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int ret;
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/*XXX: not on all boards, we should control based on temperature
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* on recent boards.. or maybe on some other factor we don't
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* know about?
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*/
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if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) {
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ret = nouveau_pwmfan_set(dev, perflvl->fanspeed);
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if (ret && ret != -ENODEV) {
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NV_ERROR(dev, "fanspeed set failed: %d\n", ret);
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return ret;
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}
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}
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if (pm->voltage.supported && pm->voltage_set) {
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if (perflvl->volt_min && b->volt_min > a->volt_min) {
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ret = pm->voltage_set(dev, perflvl->volt_min);
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if (ret) {
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NV_ERROR(dev, "voltage set failed: %d\n", ret);
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return ret;
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}
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}
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}
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return 0;
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}
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static int
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nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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void *state;
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int ret;
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if (perflvl == pm->cur)
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return 0;
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ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
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if (ret)
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return ret;
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state = pm->clocks_pre(dev, perflvl);
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if (IS_ERR(state))
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return PTR_ERR(state);
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pm->clocks_set(dev, state);
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ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
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if (ret)
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return ret;
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pm->cur = perflvl;
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return 0;
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}
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static int
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nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_level *perflvl = NULL;
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/* safety precaution, for now */
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if (nouveau_perflvl_wr != 7777)
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return -EPERM;
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if (!strncmp(profile, "boot", 4))
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perflvl = &pm->boot;
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else {
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int pl = simple_strtol(profile, NULL, 10);
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int i;
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for (i = 0; i < pm->nr_perflvl; i++) {
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if (pm->perflvl[i].id == pl) {
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perflvl = &pm->perflvl[i];
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break;
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}
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}
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if (!perflvl)
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return -EINVAL;
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}
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NV_INFO(dev, "setting performance level: %s\n", profile);
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return nouveau_pm_perflvl_set(dev, perflvl);
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}
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static int
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nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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int ret;
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memset(perflvl, 0, sizeof(*perflvl));
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ret = pm->clocks_get(dev, perflvl);
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if (ret)
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return ret;
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if (pm->voltage.supported && pm->voltage_get) {
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ret = pm->voltage_get(dev);
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if (ret > 0) {
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perflvl->volt_min = ret;
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perflvl->volt_max = ret;
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}
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}
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ret = nouveau_pwmfan_get(dev);
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if (ret > 0)
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perflvl->fanspeed = ret;
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return 0;
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}
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static void
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nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
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{
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char c[16], s[16], v[32], f[16], t[16], m[16];
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c[0] = '\0';
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if (perflvl->core)
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snprintf(c, sizeof(c), " core %dMHz", perflvl->core / 1000);
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s[0] = '\0';
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if (perflvl->shader)
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snprintf(s, sizeof(s), " shader %dMHz", perflvl->shader / 1000);
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m[0] = '\0';
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if (perflvl->memory)
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snprintf(m, sizeof(m), " memory %dMHz", perflvl->memory / 1000);
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v[0] = '\0';
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if (perflvl->volt_min && perflvl->volt_min != perflvl->volt_max) {
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snprintf(v, sizeof(v), " voltage %dmV-%dmV",
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perflvl->volt_min / 1000, perflvl->volt_max / 1000);
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} else
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if (perflvl->volt_min) {
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snprintf(v, sizeof(v), " voltage %dmV",
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perflvl->volt_min / 1000);
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}
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f[0] = '\0';
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if (perflvl->fanspeed)
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snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
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t[0] = '\0';
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if (perflvl->timing)
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snprintf(t, sizeof(t), " timing %d", perflvl->timing->id);
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snprintf(ptr, len, "%s%s%s%s%s%s\n", c, s, m, t, v, f);
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}
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static ssize_t
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nouveau_pm_get_perflvl_info(struct device *d,
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struct device_attribute *a, char *buf)
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{
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struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
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char *ptr = buf;
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int len = PAGE_SIZE;
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snprintf(ptr, len, "%d:", perflvl->id);
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ptr += strlen(buf);
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len -= strlen(buf);
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nouveau_pm_perflvl_info(perflvl, ptr, len);
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return strlen(buf);
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}
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static ssize_t
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nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
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{
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struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_level cur;
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int len = PAGE_SIZE, ret;
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char *ptr = buf;
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if (!pm->cur)
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snprintf(ptr, len, "setting: boot\n");
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else if (pm->cur == &pm->boot)
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snprintf(ptr, len, "setting: boot\nc:");
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else
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snprintf(ptr, len, "setting: static %d\nc:", pm->cur->id);
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ptr += strlen(buf);
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len -= strlen(buf);
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ret = nouveau_pm_perflvl_get(dev, &cur);
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if (ret == 0)
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nouveau_pm_perflvl_info(&cur, ptr, len);
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return strlen(buf);
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}
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static ssize_t
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nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
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const char *buf, size_t count)
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{
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struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
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int ret;
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ret = nouveau_pm_profile_set(dev, buf);
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if (ret)
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return ret;
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return strlen(buf);
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}
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static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
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nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
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static int
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nouveau_sysfs_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct device *d = &dev->pdev->dev;
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int ret, i;
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ret = device_create_file(d, &dev_attr_performance_level);
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if (ret)
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return ret;
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for (i = 0; i < pm->nr_perflvl; i++) {
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struct nouveau_pm_level *perflvl = &pm->perflvl[i];
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perflvl->dev_attr.attr.name = perflvl->name;
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perflvl->dev_attr.attr.mode = S_IRUGO;
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perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
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perflvl->dev_attr.store = NULL;
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sysfs_attr_init(&perflvl->dev_attr.attr);
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ret = device_create_file(d, &perflvl->dev_attr);
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if (ret) {
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NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
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perflvl->id, i);
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perflvl->dev_attr.attr.name = NULL;
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nouveau_pm_fini(dev);
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return ret;
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}
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}
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return 0;
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}
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static void
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nouveau_sysfs_fini(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct device *d = &dev->pdev->dev;
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int i;
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device_remove_file(d, &dev_attr_performance_level);
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for (i = 0; i < pm->nr_perflvl; i++) {
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struct nouveau_pm_level *pl = &pm->perflvl[i];
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if (!pl->dev_attr.attr.name)
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break;
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device_remove_file(d, &pl->dev_attr);
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}
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}
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#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
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static ssize_t
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nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
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{
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struct drm_device *dev = dev_get_drvdata(d);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000);
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}
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static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
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NULL, 0);
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static ssize_t
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nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
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{
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struct drm_device *dev = dev_get_drvdata(d);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
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return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000);
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}
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static ssize_t
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nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
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const char *buf, size_t count)
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{
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struct drm_device *dev = dev_get_drvdata(d);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
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long value;
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if (strict_strtol(buf, 10, &value) == -EINVAL)
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return count;
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temp->down_clock = value/1000;
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nouveau_temp_safety_checks(dev);
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return count;
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}
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static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
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nouveau_hwmon_set_max_temp,
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0);
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static ssize_t
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nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
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char *buf)
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{
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struct drm_device *dev = dev_get_drvdata(d);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
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return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000);
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}
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static ssize_t
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nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
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const char *buf,
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size_t count)
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{
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struct drm_device *dev = dev_get_drvdata(d);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
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long value;
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if (strict_strtol(buf, 10, &value) == -EINVAL)
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return count;
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temp->critical = value/1000;
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nouveau_temp_safety_checks(dev);
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return count;
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}
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static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
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nouveau_hwmon_critical_temp,
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nouveau_hwmon_set_critical_temp,
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0);
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static ssize_t nouveau_hwmon_show_name(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "nouveau\n");
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}
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static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
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static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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return sprintf(buf, "1000\n");
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}
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static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
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nouveau_hwmon_show_update_rate,
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NULL, 0);
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static ssize_t
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nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
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char *buf)
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{
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struct drm_device *dev = dev_get_drvdata(d);
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
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struct gpio_func gpio;
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u32 cycles, cur, prev;
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u64 start;
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int ret;
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ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio);
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if (ret)
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return ret;
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|
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/* Monitor the GPIO input 0x3b for 250ms.
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* When the fan spins, it changes the value of GPIO FAN_SENSE.
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* 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);
|
|
}
|