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/*
* Copyright (C) 2011-2014 MediaTek 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/debugfs.h>
#include <linux/export.h>
#include <linux/seq_file.h>
#include <linux/file.h>
#include <linux/kthread.h>
#include <linux/xlog.h>
#include <linux/delay.h>
#include "mtk_sync.h"
/* -------------------------------------------------------------------------- */
struct sw_sync_timeline *timeline_create(const char *name)
{
return sw_sync_timeline_create(name);
}
EXPORT_SYMBOL(timeline_create);
void timeline_destroy(struct sw_sync_timeline *obj)
{
sync_timeline_destroy(&obj->obj);
}
EXPORT_SYMBOL(timeline_destroy);
void timeline_inc(struct sw_sync_timeline *obj, u32 value)
{
sw_sync_timeline_inc(obj, value);
}
EXPORT_SYMBOL(timeline_inc);
int fence_create(struct sw_sync_timeline *obj, struct fence_data *data)
{
int fd = get_unused_fd();
int err;
struct sync_pt *pt;
struct sync_fence *fence;
if (fd < 0)
return fd;
pt = sw_sync_pt_create(obj, data->value);
if (pt == NULL) {
err = -ENOMEM;
goto err;
}
data->name[sizeof(data->name) - 1] = '\0';
fence = sync_fence_create(data->name, pt);
if (fence == NULL) {
sync_pt_free(pt);
err = -ENOMEM;
goto err;
}
data->fence = fd;
sync_fence_install(fence, fd);
return 0;
err:
put_unused_fd(fd);
return err;
}
EXPORT_SYMBOL(fence_create);
int fence_merge(char *const name, int fd1, int fd2)
{
int fd = get_unused_fd();
int err;
struct sync_fence *fence1, *fence2, *fence3;
if (fd < 0)
return fd;
fence1 = sync_fence_fdget(fd1);
if (NULL == fence1) {
err = -ENOENT;
goto err_put_fd;
}
fence2 = sync_fence_fdget(fd2);
if (NULL == fence2) {
err = -ENOENT;
goto err_put_fence1;
}
name[sizeof(name) - 1] = '\0';
fence3 = sync_fence_merge(name, fence1, fence2);
if (fence3 == NULL) {
err = -ENOMEM;
goto err_put_fence2;
}
sync_fence_install(fence3, fd);
sync_fence_put(fence2);
sync_fence_put(fence1);
return fd;
err_put_fence2:
sync_fence_put(fence2);
err_put_fence1:
sync_fence_put(fence1);
err_put_fd:
put_unused_fd(fd);
return err;
}
EXPORT_SYMBOL(fence_merge);
inline int fence_wait(struct sync_fence *fence, int timeout)
{
return sync_fence_wait(fence, timeout);
}
EXPORT_SYMBOL(fence_wait);
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