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path: root/drivers/gpu/drm/nouveau/nouveau_pm.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_pm.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_pm.c518
1 files changed, 0 insertions, 518 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
deleted file mode 100644
index 1c99c55d6d4..00000000000
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ /dev/null
@@ -1,518 +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 <linux/hwmon.h>
-#include <linux/hwmon-sysfs.h>
-
-static int
-nouveau_pm_clock_set(struct drm_device *dev, struct nouveau_pm_level *perflvl,
- u8 id, u32 khz)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- void *pre_state;
-
- if (khz == 0)
- return 0;
-
- pre_state = pm->clock_pre(dev, perflvl, id, khz);
- if (IS_ERR(pre_state))
- return PTR_ERR(pre_state);
-
- if (pre_state)
- pm->clock_set(dev, pre_state);
- 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;
- int ret;
-
- if (perflvl == pm->cur)
- return 0;
-
- if (pm->voltage.supported && pm->voltage_set && perflvl->voltage) {
- ret = pm->voltage_set(dev, perflvl->voltage);
- if (ret) {
- NV_ERROR(dev, "voltage_set %d failed: %d\n",
- perflvl->voltage, ret);
- }
- }
-
- nouveau_pm_clock_set(dev, perflvl, PLL_CORE, perflvl->core);
- nouveau_pm_clock_set(dev, perflvl, PLL_SHADER, perflvl->shader);
- nouveau_pm_clock_set(dev, perflvl, PLL_MEMORY, perflvl->memory);
- nouveau_pm_clock_set(dev, perflvl, PLL_UNK05, perflvl->unk05);
-
- pm->cur = perflvl;
- return 0;
-}
-
-static int
-nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct nouveau_pm_level *perflvl = NULL;
-
- /* safety precaution, for now */
- if (nouveau_perflvl_wr != 7777)
- return -EPERM;
-
- if (!pm->clock_set)
- return -EINVAL;
-
- if (!strncmp(profile, "boot", 4))
- perflvl = &pm->boot;
- else {
- int pl = simple_strtol(profile, NULL, 10);
- int i;
-
- for (i = 0; i < pm->nr_perflvl; i++) {
- if (pm->perflvl[i].id == pl) {
- perflvl = &pm->perflvl[i];
- break;
- }
- }
-
- if (!perflvl)
- return -EINVAL;
- }
-
- NV_INFO(dev, "setting performance level: %s\n", profile);
- return nouveau_pm_perflvl_set(dev, perflvl);
-}
-
-static int
-nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- int ret;
-
- if (!pm->clock_get)
- return -EINVAL;
-
- memset(perflvl, 0, sizeof(*perflvl));
-
- ret = pm->clock_get(dev, PLL_CORE);
- if (ret > 0)
- perflvl->core = ret;
-
- ret = pm->clock_get(dev, PLL_MEMORY);
- if (ret > 0)
- perflvl->memory = ret;
-
- ret = pm->clock_get(dev, PLL_SHADER);
- if (ret > 0)
- perflvl->shader = ret;
-
- ret = pm->clock_get(dev, PLL_UNK05);
- if (ret > 0)
- perflvl->unk05 = ret;
-
- if (pm->voltage.supported && pm->voltage_get) {
- ret = pm->voltage_get(dev);
- if (ret > 0)
- perflvl->voltage = ret;
- }
-
- return 0;
-}
-
-static void
-nouveau_pm_perflvl_info(struct nouveau_pm_level *perflvl, char *ptr, int len)
-{
- char c[16], s[16], v[16], f[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);
-
- v[0] = '\0';
- if (perflvl->voltage)
- snprintf(v, sizeof(v), " voltage %dmV", perflvl->voltage * 10);
-
- f[0] = '\0';
- if (perflvl->fanspeed)
- snprintf(f, sizeof(f), " fanspeed %d%%", perflvl->fanspeed);
-
- snprintf(ptr, len, "memory %dMHz%s%s%s%s\n", perflvl->memory / 1000,
- c, s, v, f);
-}
-
-static ssize_t
-nouveau_pm_get_perflvl_info(struct device *d,
- struct device_attribute *a, char *buf)
-{
- struct nouveau_pm_level *perflvl = (struct nouveau_pm_level *)a;
- char *ptr = buf;
- int len = PAGE_SIZE;
-
- snprintf(ptr, len, "%d: ", perflvl->id);
- ptr += strlen(buf);
- len -= strlen(buf);
-
- nouveau_pm_perflvl_info(perflvl, ptr, len);
- return strlen(buf);
-}
-
-static ssize_t
-nouveau_pm_get_perflvl(struct device *d, struct device_attribute *a, char *buf)
-{
- struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct nouveau_pm_level cur;
- int len = PAGE_SIZE, ret;
- char *ptr = buf;
-
- if (!pm->cur)
- snprintf(ptr, len, "setting: boot\n");
- else if (pm->cur == &pm->boot)
- snprintf(ptr, len, "setting: boot\nc: ");
- else
- snprintf(ptr, len, "setting: static %d\nc: ", pm->cur->id);
- ptr += strlen(buf);
- len -= strlen(buf);
-
- ret = nouveau_pm_perflvl_get(dev, &cur);
- if (ret == 0)
- nouveau_pm_perflvl_info(&cur, ptr, len);
- return strlen(buf);
-}
-
-static ssize_t
-nouveau_pm_set_perflvl(struct device *d, struct device_attribute *a,
- const char *buf, size_t count)
-{
- struct drm_device *dev = pci_get_drvdata(to_pci_dev(d));
- int ret;
-
- ret = nouveau_pm_profile_set(dev, buf);
- if (ret)
- return ret;
- return strlen(buf);
-}
-
-static DEVICE_ATTR(performance_level, S_IRUGO | S_IWUSR,
- nouveau_pm_get_perflvl, nouveau_pm_set_perflvl);
-
-static int
-nouveau_sysfs_init(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct device *d = &dev->pdev->dev;
- int ret, i;
-
- ret = device_create_file(d, &dev_attr_performance_level);
- if (ret)
- return ret;
-
- for (i = 0; i < pm->nr_perflvl; i++) {
- struct nouveau_pm_level *perflvl = &pm->perflvl[i];
-
- perflvl->dev_attr.attr.name = perflvl->name;
- perflvl->dev_attr.attr.mode = S_IRUGO;
- perflvl->dev_attr.show = nouveau_pm_get_perflvl_info;
- perflvl->dev_attr.store = NULL;
- sysfs_attr_init(&perflvl->dev_attr.attr);
-
- ret = device_create_file(d, &perflvl->dev_attr);
- if (ret) {
- NV_ERROR(dev, "failed pervlvl %d sysfs: %d\n",
- perflvl->id, i);
- perflvl->dev_attr.attr.name = NULL;
- nouveau_pm_fini(dev);
- return ret;
- }
- }
-
- return 0;
-}
-
-static void
-nouveau_sysfs_fini(struct drm_device *dev)
-{
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct device *d = &dev->pdev->dev;
- int i;
-
- device_remove_file(d, &dev_attr_performance_level);
- for (i = 0; i < pm->nr_perflvl; i++) {
- struct nouveau_pm_level *pl = &pm->perflvl[i];
-
- if (!pl->dev_attr.attr.name)
- break;
-
- device_remove_file(d, &pl->dev_attr);
- }
-}
-
-static ssize_t
-nouveau_hwmon_show_temp(struct device *d, struct device_attribute *a, char *buf)
-{
- struct drm_device *dev = dev_get_drvdata(d);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-
- return snprintf(buf, PAGE_SIZE, "%d\n", pm->temp_get(dev)*1000);
-}
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, nouveau_hwmon_show_temp,
- NULL, 0);
-
-static ssize_t
-nouveau_hwmon_max_temp(struct device *d, struct device_attribute *a, char *buf)
-{
- struct drm_device *dev = dev_get_drvdata(d);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
-
- return snprintf(buf, PAGE_SIZE, "%d\n", temp->down_clock*1000);
-}
-static ssize_t
-nouveau_hwmon_set_max_temp(struct device *d, struct device_attribute *a,
- const char *buf, size_t count)
-{
- struct drm_device *dev = dev_get_drvdata(d);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
- long value;
-
- if (strict_strtol(buf, 10, &value) == -EINVAL)
- return count;
-
- temp->down_clock = value/1000;
-
- nouveau_temp_safety_checks(dev);
-
- return count;
-}
-static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, nouveau_hwmon_max_temp,
- nouveau_hwmon_set_max_temp,
- 0);
-
-static ssize_t
-nouveau_hwmon_critical_temp(struct device *d, struct device_attribute *a,
- char *buf)
-{
- struct drm_device *dev = dev_get_drvdata(d);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
-
- return snprintf(buf, PAGE_SIZE, "%d\n", temp->critical*1000);
-}
-static ssize_t
-nouveau_hwmon_set_critical_temp(struct device *d, struct device_attribute *a,
- const char *buf,
- size_t count)
-{
- struct drm_device *dev = dev_get_drvdata(d);
- struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
- struct nouveau_pm_threshold_temp *temp = &pm->threshold_temp;
- long value;
-
- if (strict_strtol(buf, 10, &value) == -EINVAL)
- return count;
-
- temp->critical = value/1000;
-
- nouveau_temp_safety_checks(dev);
-
- return count;
-}
-static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
- nouveau_hwmon_critical_temp,
- nouveau_hwmon_set_critical_temp,
- 0);
-
-static ssize_t nouveau_hwmon_show_name(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "nouveau\n");
-}
-static SENSOR_DEVICE_ATTR(name, S_IRUGO, nouveau_hwmon_show_name, NULL, 0);
-
-static ssize_t nouveau_hwmon_show_update_rate(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "1000\n");
-}
-static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
- nouveau_hwmon_show_update_rate,
- NULL, 0);
-
-static 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 const struct attribute_group hwmon_attrgroup = {
- .attrs = hwmon_attributes,
-};
-
-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;
- struct device *hwmon_dev;
- int ret;
-
- 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);
- ret = sysfs_create_group(&hwmon_dev->kobj,
- &hwmon_attrgroup);
- if (ret) {
- NV_ERROR(dev,
- "Unable to create hwmon sysfs file: %d\n", ret);
- hwmon_device_unregister(hwmon_dev);
- return ret;
- }
-
- pm->hwmon = hwmon_dev;
-
- return 0;
-}
-
-static void
-nouveau_hwmon_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->hwmon) {
- sysfs_remove_group(&pm->hwmon->kobj, &hwmon_attrgroup);
- hwmon_device_unregister(pm->hwmon);
- }
-}
-
-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_volt_init(dev);
- nouveau_perf_init(dev);
- nouveau_temp_init(dev);
- nouveau_mem_timing_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) {
- 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);
-
- 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_mem_timing_fini(dev);
- nouveau_temp_fini(dev);
- nouveau_perf_fini(dev);
- nouveau_volt_fini(dev);
-
- 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->boot)
- return;
-
- perflvl = pm->cur;
- pm->cur = &pm->boot;
- nouveau_pm_perflvl_set(dev, perflvl);
-}
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