drm/nouveau: Add temperature support (vbios parsing, readings, hwmon)
Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Martin Peres
Ben Skeggs
parent
64d202b4d7
commit
34e9d85a1a
@ -25,7 +25,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
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nv04_crtc.o nv04_display.o nv04_cursor.o nv04_fbcon.o \
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nv10_gpio.o nv50_gpio.o \
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nv50_calc.o \
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nv04_pm.o nv50_pm.o
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nv04_pm.o nv50_pm.o nouveau_temp.o
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nouveau-$(CONFIG_DRM_NOUVEAU_DEBUG) += nouveau_debugfs.o
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nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o
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@ -387,10 +387,26 @@ struct nouveau_pm_level {
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u8 fanspeed;
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};
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struct nouveau_pm_temp_sensor_constants {
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u16 offset_constant;
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s16 offset_mult;
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u16 offset_div;
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u16 slope_mult;
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u16 slope_div;
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};
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struct nouveau_pm_threshold_temp {
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s16 critical;
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s16 down_clock;
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s16 fan_boost;
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};
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struct nouveau_pm_engine {
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struct nouveau_pm_voltage voltage;
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struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
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int nr_perflvl;
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struct nouveau_pm_temp_sensor_constants sensor_constants;
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struct nouveau_pm_threshold_temp threshold_temp;
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struct nouveau_pm_level boot;
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struct nouveau_pm_level *cur;
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@ -663,6 +679,8 @@ struct drm_nouveau_private {
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struct nouveau_fbdev *nfbdev;
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struct apertures_struct *apertures;
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struct device *int_hwmon_dev;
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};
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static inline struct drm_nouveau_private *
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@ -27,6 +27,9 @@
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#include "nouveau_drv.h"
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#include "nouveau_pm.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_pm_clock_set(struct drm_device *dev, u8 id, u32 khz)
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{
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@ -189,7 +192,7 @@ nouveau_pm_get_perflvl_info(struct device *d,
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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_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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@ -215,7 +218,7 @@ 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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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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@ -227,43 +230,14 @@ nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
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DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
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nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
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int
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nouveau_pm_init(struct drm_device *dev)
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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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char info[256];
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int ret, i;
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nouveau_volt_init(dev);
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nouveau_perf_init(dev);
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NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
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for (i = 0; i < pm->nr_perflvl; i++) {
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nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
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NV_INFO(dev, "%d: %s", pm->perflvl[i].id, info);
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}
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/* determine current ("boot") performance level */
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ret = nouveau_pm_perflvl_get(dev, &pm->boot);
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if (ret == 0) {
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pm->cur = &pm->boot;
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nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
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NV_INFO(dev, "c: %s", info);
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}
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/* switch performance levels now if requested */
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if (nouveau_perflvl != NULL) {
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ret = nouveau_pm_profile_set(dev, nouveau_perflvl);
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if (ret) {
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NV_ERROR(dev, "error setting perflvl \"%s\": %d\n",
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nouveau_perflvl, ret);
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}
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}
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/* initialise sysfs */
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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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@ -290,17 +264,14 @@ nouveau_pm_init(struct drm_device *dev)
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return 0;
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}
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void
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nouveau_pm_fini(struct drm_device *dev)
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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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if (pm->cur != &pm->boot)
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nouveau_pm_perflvl_set(dev, &pm->boot);
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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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@ -310,9 +281,221 @@ nouveau_pm_fini(struct drm_device *dev)
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device_remove_file(d, &pl->dev_attr);
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}
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}
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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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return snprintf(buf, PAGE_SIZE, "%d\n", nouveau_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_strtoul(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_strtoul(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 struct attribute *hwmon_attributes[] = {
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&sensor_dev_attr_temp1_input.dev_attr.attr,
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&sensor_dev_attr_temp1_max.dev_attr.attr,
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&sensor_dev_attr_temp1_crit.dev_attr.attr,
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&sensor_dev_attr_name.dev_attr.attr,
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&sensor_dev_attr_update_rate.dev_attr.attr,
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NULL
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};
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static const struct attribute_group hwmon_attrgroup = {
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.attrs = hwmon_attributes,
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};
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static int
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nouveau_hwmon_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 device *hwmon_dev;
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int ret;
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dev_priv->int_hwmon_dev = NULL;
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hwmon_dev = hwmon_device_register(&dev->pdev->dev);
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if (IS_ERR(hwmon_dev)) {
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ret = PTR_ERR(hwmon_dev);
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NV_ERROR(dev,
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"Unable to register hwmon device: %d\n", ret);
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return ret;
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}
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dev_set_drvdata(hwmon_dev, dev);
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ret = sysfs_create_group(&hwmon_dev->kobj,
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&hwmon_attrgroup);
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if (ret) {
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NV_ERROR(dev,
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"Unable to create hwmon sysfs file: %d\n", ret);
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hwmon_device_unregister(hwmon_dev);
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return ret;
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}
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dev_priv->int_hwmon_dev = hwmon_dev;
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return 0;
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}
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static void
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nouveau_hwmon_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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if (dev_priv->int_hwmon_dev) {
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sysfs_remove_group(&dev_priv->int_hwmon_dev->kobj,
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&hwmon_attrgroup);
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hwmon_device_unregister(dev_priv->int_hwmon_dev);
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}
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}
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int
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nouveau_pm_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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char info[256];
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int ret, i;
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nouveau_volt_init(dev);
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nouveau_perf_init(dev);
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nouveau_temp_init(dev);
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NV_INFO(dev, "%d available performance level(s)\n", pm->nr_perflvl);
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for (i = 0; i < pm->nr_perflvl; i++) {
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nouveau_pm_perflvl_info(&pm->perflvl[i], info, sizeof(info));
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NV_INFO(dev, "%d: %s", pm->perflvl[i].id, info);
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}
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/* determine current ("boot") performance level */
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ret = nouveau_pm_perflvl_get(dev, &pm->boot);
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if (ret == 0) {
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pm->cur = &pm->boot;
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nouveau_pm_perflvl_info(&pm->boot, info, sizeof(info));
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NV_INFO(dev, "c: %s", info);
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}
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/* switch performance levels now if requested */
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if (nouveau_perflvl != NULL) {
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ret = nouveau_pm_profile_set(dev, nouveau_perflvl);
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if (ret) {
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NV_ERROR(dev, "error setting perflvl \"%s\": %d\n",
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nouveau_perflvl, ret);
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}
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}
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nouveau_sysfs_init(dev);
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nouveau_hwmon_init(dev);
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return 0;
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}
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void
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nouveau_pm_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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if (pm->cur != &pm->boot)
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nouveau_pm_perflvl_set(dev, &pm->boot);
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nouveau_perf_fini(dev);
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nouveau_volt_fini(dev);
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nouveau_temp_fini(dev);
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nouveau_hwmon_fini(dev);
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nouveau_sysfs_fini(dev);
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}
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void
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@ -52,4 +52,10 @@ int nv50_pm_clock_get(struct drm_device *, u32 id);
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void *nv50_pm_clock_pre(struct drm_device *, u32 id, int khz);
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void nv50_pm_clock_set(struct drm_device *, void *);
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/* nouveau_temp.c */
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void nouveau_temp_init(struct drm_device *dev);
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void nouveau_temp_fini(struct drm_device *dev);
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void nouveau_temp_safety_checks(struct drm_device *dev);
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int16_t nouveau_temp_get(struct drm_device *dev);
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#endif
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272
drivers/gpu/drm/nouveau/nouveau_temp.c
Normal file
272
drivers/gpu/drm/nouveau/nouveau_temp.c
Normal file
@ -0,0 +1,272 @@
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/*
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* Copyright 2010 PathScale 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: Martin Peres
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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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void
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nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp)
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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_temp_sensor_constants *sensor = &pm->sensor_constants;
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struct nouveau_pm_threshold_temp *temps = &pm->threshold_temp;
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int i, headerlen, recordlen, entries;
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if (!temp) {
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NV_DEBUG(dev, "temperature table pointer invalid\n");
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return;
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}
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/* Set the default sensor's contants */
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sensor->offset_constant = 0;
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sensor->offset_mult = 1;
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sensor->offset_div = 1;
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sensor->slope_mult = 1;
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sensor->slope_div = 1;
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/* Set the default temperature thresholds */
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temps->critical = 110;
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temps->down_clock = 100;
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temps->fan_boost = 90;
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/* Set the known default values to setup the temperature sensor */
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if (dev_priv->card_type >= NV_40) {
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switch (dev_priv->chipset) {
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case 0x43:
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sensor->offset_mult = 32060;
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sensor->offset_div = 1000;
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sensor->slope_mult = 792;
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sensor->slope_div = 1000;
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break;
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case 0x44:
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case 0x47:
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sensor->offset_mult = 27839;
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sensor->offset_div = 1000;
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sensor->slope_mult = 780;
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sensor->slope_div = 1000;
|
||||
break;
|
||||
|
||||
case 0x46:
|
||||
sensor->offset_mult = -24775;
|
||||
sensor->offset_div = 100;
|
||||
sensor->slope_mult = 467;
|
||||
sensor->slope_div = 10000;
|
||||
break;
|
||||
|
||||
case 0x49:
|
||||
sensor->offset_mult = -25051;
|
||||
sensor->offset_div = 100;
|
||||
sensor->slope_mult = 458;
|
||||
sensor->slope_div = 10000;
|
||||
break;
|
||||
|
||||
case 0x4b:
|
||||
sensor->offset_mult = -24088;
|
||||
sensor->offset_div = 100;
|
||||
sensor->slope_mult = 442;
|
||||
sensor->slope_div = 10000;
|
||||
break;
|
||||
|
||||
case 0x50:
|
||||
sensor->offset_mult = -22749;
|
||||
sensor->offset_div = 100;
|
||||
sensor->slope_mult = 431;
|
||||
sensor->slope_div = 10000;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
headerlen = temp[1];
|
||||
recordlen = temp[2];
|
||||
entries = temp[3];
|
||||
temp = temp + headerlen;
|
||||
|
||||
/* Read the entries from the table */
|
||||
for (i = 0; i < entries; i++) {
|
||||
u16 value = ROM16(temp[1]);
|
||||
|
||||
switch (temp[0]) {
|
||||
case 0x01:
|
||||
value = (value&0x8f) == 0 ? (value >> 9) & 0x7f : 0;
|
||||
sensor->offset_constant = value;
|
||||
break;
|
||||
|
||||
case 0x04:
|
||||
if ((value & 0xf00f) == 0xa000) /* core */
|
||||
temps->critical = (value&0x0ff0) >> 4;
|
||||
break;
|
||||
|
||||
case 0x07:
|
||||
if ((value & 0xf00f) == 0xa000) /* core */
|
||||
temps->down_clock = (value&0x0ff0) >> 4;
|
||||
break;
|
||||
|
||||
case 0x08:
|
||||
if ((value & 0xf00f) == 0xa000) /* core */
|
||||
temps->fan_boost = (value&0x0ff0) >> 4;
|
||||
break;
|
||||
|
||||
case 0x10:
|
||||
sensor->offset_mult = value;
|
||||
break;
|
||||
|
||||
case 0x11:
|
||||
sensor->offset_div = value;
|
||||
break;
|
||||
|
||||
case 0x12:
|
||||
sensor->slope_mult = value;
|
||||
break;
|
||||
|
||||
case 0x13:
|
||||
sensor->slope_div = value;
|
||||
break;
|
||||
}
|
||||
temp += recordlen;
|
||||
}
|
||||
|
||||
nouveau_temp_safety_checks(dev);
|
||||
}
|
||||
|
||||
static s16
|
||||
nouveau_nv40_sensor_setup(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_temp_sensor_constants *sensor = &pm->sensor_constants;
|
||||
u32 offset = sensor->offset_mult / sensor->offset_div;
|
||||
u32 sensor_calibration;
|
||||
|
||||
/* set up the sensors */
|
||||
sensor_calibration = 120 - offset - sensor->offset_constant;
|
||||
sensor_calibration = sensor_calibration * sensor->slope_div /
|
||||
sensor->slope_mult;
|
||||
|
||||
if (dev_priv->chipset >= 0x46)
|
||||
sensor_calibration |= 0x80000000;
|
||||
else
|
||||
sensor_calibration |= 0x10000000;
|
||||
|
||||
nv_wr32(dev, 0x0015b0, sensor_calibration);
|
||||
|
||||
/* Wait for the sensor to update */
|
||||
msleep(5);
|
||||
|
||||
/* read */
|
||||
return nv_rd32(dev, 0x0015b4);
|
||||
}
|
||||
|
||||
s16
|
||||
nouveau_temp_get(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_temp_sensor_constants *sensor = &pm->sensor_constants;
|
||||
|
||||
if (dev_priv->chipset >= 0x84) {
|
||||
return nv_rd32(dev, 0x20400);
|
||||
} else if (dev_priv->chipset >= 0x40) {
|
||||
u32 offset = sensor->offset_mult / sensor->offset_div;
|
||||
u32 core_temp;
|
||||
|
||||
if (dev_priv->chipset >= 0x50) {
|
||||
core_temp = nv_rd32(dev, 0x20008);
|
||||
} else {
|
||||
core_temp = nv_rd32(dev, 0x0015b4);
|
||||
/* Setup the sensor if the temperature is 0 */
|
||||
if (core_temp == 0)
|
||||
core_temp = nouveau_nv40_sensor_setup(dev);
|
||||
}
|
||||
|
||||
core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
|
||||
core_temp = core_temp + offset + sensor->offset_constant;
|
||||
|
||||
return core_temp;
|
||||
} else {
|
||||
NV_ERROR(dev,
|
||||
"Temperature cannot be retrieved from an nv%x card\n",
|
||||
dev_priv->chipset);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
nouveau_temp_safety_checks(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_threshold_temp *temps = &pm->threshold_temp;
|
||||
|
||||
if (temps->critical > 120)
|
||||
temps->critical = 120;
|
||||
else if (temps->critical < 80)
|
||||
temps->critical = 80;
|
||||
|
||||
if (temps->down_clock > 110)
|
||||
temps->down_clock = 110;
|
||||
else if (temps->down_clock < 60)
|
||||
temps->down_clock = 60;
|
||||
|
||||
if (temps->fan_boost > 100)
|
||||
temps->fan_boost = 100;
|
||||
else if (temps->fan_boost < 40)
|
||||
temps->fan_boost = 40;
|
||||
}
|
||||
|
||||
void
|
||||
nouveau_temp_init(struct drm_device *dev)
|
||||
{
|
||||
struct drm_nouveau_private *dev_priv = dev->dev_private;
|
||||
struct nvbios *bios = &dev_priv->vbios;
|
||||
struct bit_entry P;
|
||||
u8 *temp = NULL;
|
||||
|
||||
if (bios->type == NVBIOS_BIT) {
|
||||
if (bit_table(dev, 'P', &P))
|
||||
return;
|
||||
|
||||
if (P.version == 1)
|
||||
temp = ROMPTR(bios, P.data[12]);
|
||||
else if (P.version == 2)
|
||||
temp = ROMPTR(bios, P.data[16]);
|
||||
else
|
||||
NV_WARN(dev, "unknown temp for BIT P %d\n", P.version);
|
||||
} else {
|
||||
NV_WARN(dev, "BMP entry unknown for temperature table.\n");
|
||||
}
|
||||
|
||||
nouveau_temp_vbios_parse(dev, temp);
|
||||
}
|
||||
|
||||
void
|
||||
nouveau_temp_fini(struct drm_device *dev)
|
||||
{
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user