diff options
Diffstat (limited to 'pvr-source/services4/system/omap4/sgxfreq_activeidle.c')
| -rwxr-xr-x | pvr-source/services4/system/omap4/sgxfreq_activeidle.c | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/pvr-source/services4/system/omap4/sgxfreq_activeidle.c b/pvr-source/services4/system/omap4/sgxfreq_activeidle.c deleted file mode 100755 index 45159d7..0000000 --- a/pvr-source/services4/system/omap4/sgxfreq_activeidle.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Copyright (C) 2012 Texas Instruments, Inc - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include <linux/sysfs.h> -#include "sgxfreq.h" - -static int activeidle_start(struct sgxfreq_sgx_data *data); -static void activeidle_stop(void); -static void activeidle_sgx_active(void); -static void activeidle_sgx_idle(void); - -static struct activeidle_data { - unsigned long freq_active; - unsigned long freq_idle; - struct mutex mutex; - bool sgx_active; -} aid; - -static struct sgxfreq_governor activeidle_gov = { - .name = "activeidle", - .gov_start = activeidle_start, - .gov_stop = activeidle_stop, - .sgx_active = activeidle_sgx_active, - .sgx_idle = activeidle_sgx_idle, -}; - -/*********************** begin sysfs interface ***********************/ - -extern struct kobject *sgxfreq_kobj; - -static ssize_t show_freq_active(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%lu\n", aid.freq_active); -} - -static ssize_t store_freq_active(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - int ret; - unsigned long freq; - - ret = sscanf(buf, "%lu", &freq); - if (ret != 1) - return -EINVAL; - - freq = sgxfreq_get_freq_ceil(freq); - - mutex_lock(&aid.mutex); - - aid.freq_active = freq; - if (aid.sgx_active) - sgxfreq_set_freq_request(aid.freq_active); - - mutex_unlock(&aid.mutex); - - return count; -} - -static ssize_t show_freq_idle(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%lu\n", aid.freq_idle); -} - -static ssize_t store_freq_idle(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - int ret; - unsigned long freq; - - ret = sscanf(buf, "%lu", &freq); - if (ret != 1) - return -EINVAL; - - freq = sgxfreq_get_freq_floor(freq); - - mutex_lock(&aid.mutex); - - aid.freq_idle = freq; - if (!aid.sgx_active) - sgxfreq_set_freq_request(aid.freq_idle); - - mutex_unlock(&aid.mutex); - - return count; -} -static DEVICE_ATTR(freq_active, 0644, show_freq_active, store_freq_active); -static DEVICE_ATTR(freq_idle, 0644, show_freq_idle, store_freq_idle); - -static struct attribute *activeidle_attributes[] = { - &dev_attr_freq_active.attr, - &dev_attr_freq_idle.attr, - NULL -}; - -static struct attribute_group activeidle_attr_group = { - .attrs = activeidle_attributes, - .name = "activeidle", -}; - -/************************ end sysfs interface ************************/ - -int activeidle_init(void) -{ - int ret; - - mutex_init(&aid.mutex); - - ret = sgxfreq_register_governor(&activeidle_gov); - if (ret) - return ret; - - aid.freq_idle = sgxfreq_get_freq_min(); - aid.freq_active = sgxfreq_get_freq_max(); - - return 0; -} - -int activeidle_deinit(void) -{ - return 0; -} - -static int activeidle_start(struct sgxfreq_sgx_data *data) -{ - int ret; - - aid.sgx_active = data->active; - - ret = sysfs_create_group(sgxfreq_kobj, &activeidle_attr_group); - if (ret) - return ret; - - if (aid.sgx_active) - sgxfreq_set_freq_request(aid.freq_active); - else - sgxfreq_set_freq_request(aid.freq_idle); - - return 0; -} - -static void activeidle_stop(void) -{ - sysfs_remove_group(sgxfreq_kobj, &activeidle_attr_group); -} - -static void activeidle_sgx_active(void) -{ - mutex_lock(&aid.mutex); - - aid.sgx_active = true; - sgxfreq_set_freq_request(aid.freq_active); - - mutex_unlock(&aid.mutex); -} - -static void activeidle_sgx_idle(void) -{ - mutex_lock(&aid.mutex); - - aid.sgx_active = false; - sgxfreq_set_freq_request(aid.freq_idle); - - mutex_unlock(&aid.mutex); -} |