diff options
Diffstat (limited to 'drivers/gpu/pvr/services4/system/omap4/sgxfreq_userspace.c')
| -rw-r--r-- | drivers/gpu/pvr/services4/system/omap4/sgxfreq_userspace.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/drivers/gpu/pvr/services4/system/omap4/sgxfreq_userspace.c b/drivers/gpu/pvr/services4/system/omap4/sgxfreq_userspace.c deleted file mode 100644 index 5ff0dd07d8a..00000000000 --- a/drivers/gpu/pvr/services4/system/omap4/sgxfreq_userspace.c +++ /dev/null @@ -1,180 +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 userspace_start(struct sgxfreq_sgx_data *data); -static void userspace_stop(void); -static void userspace_sgx_clk_on(void); -static void userspace_sgx_clk_off(void); -static void userspace_sgx_active(void); -static void userspace_sgx_idle(void); - - -static struct sgxfreq_governor userspace_gov = { - .name = "userspace", - .gov_start = userspace_start, - .gov_stop = userspace_stop, - .sgx_clk_on = userspace_sgx_clk_on, - .sgx_clk_off = userspace_sgx_clk_off, - .sgx_active = userspace_sgx_active, - .sgx_idle = userspace_sgx_idle, -}; - - -static struct userspace_data { - unsigned long freq_user; /* in KHz */ - struct mutex mutex; -} usd; - - -/*********************** begin sysfs interface ***********************/ - -extern struct kobject *sgxfreq_kobj; - - -static ssize_t show_frequency_set(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return sprintf(buf, "%lu\n", usd.freq_user); -} - - -static ssize_t store_frequency_set(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; - - mutex_lock(&odd.mutex); - - if (freq > sgxfreq_get_freq_max()) - freq = sgxfreq_get_freq_max(); - usd.freq_user = sgxfreq_set_freq_request(freq); - trace_printk("USERSPACE: new freq=%luHz.\n", usd.freq_user); - - mutex_unlock(&odd.mutex); - - return count; -} - - -static DEVICE_ATTR(frequency_set, 0644, - show_frequency_set, store_frequency_set); - - -static struct attribute *userspace_attributes[] = { - &dev_attr_frequency_set.attr, - NULL -}; - - -static struct attribute_group userspace_attr_group = { - .attrs = userspace_attributes, - .name = "userspace", -}; - -/************************ end sysfs interface ************************/ - - -int userspace_init(void) -{ - int ret; - - mutex_init(&odd.mutex); - - ret = sgxfreq_register_governor(&userspace_gov); - if (ret) - return ret; - return 0; -} - - -int userspace_deinit(void) -{ - return 0; -} - - -static int userspace_start(struct sgxfreq_sgx_data *data) -{ - int ret; - - usd.freq_user = sgxfreq_get_freq(); - - ret = sysfs_create_group(sgxfreq_kobj, &userspace_attr_group); - if (ret) - return ret; - - trace_printk("USERSPACE: started.\n"); - - return 0; -} - - -static void userspace_stop(void) -{ - usd.freq_user = sgxfreq_set_freq_request(sgxfreq_get_freq_min()); - sysfs_remove_group(sgxfreq_kobj, &userspace_attr_group); - - trace_printk("USERSPACE: stopped.\n"); -} - - -static void userspace_sgx_clk_on(void) -{ - mutex_lock(&ood.mutex); - - sgxfreq_set_freq_request(usd.freq_user); - - mutex_unlock(&ood.mutex); -} - - -static void userspace_sgx_clk_off(void) -{ - mutex_lock(&ood.mutex); - - sgxfreq_set_freq_request(sgxfreq_get_freq_min()); - - mutex_unlock(&ood.mutex); -} - - -static void userspace_sgx_active(void) -{ - mutex_lock(&aid.mutex); - - sgxfreq_set_freq_request(usd.freq_user); - - mutex_unlock(&aid.mutex); -} - - -static void userspace_sgx_idle(void) -{ - mutex_lock(&aid.mutex); - - sgxfreq_set_freq_request(sgxfreq_get_freq_min()); - - mutex_unlock(&aid.mutex); -} |