linux/sw_sync.h

   1 /*
   2  * include/linux/sw_sync.h
   3  *
   4  * Copyright (C) 2012 Google, Inc.
   5  *
   6  * This software is licensed under the terms of the GNU General Public
   7  * License version 2, as published by the Free Software Foundation, and
   8  * may be copied, distributed, and modified under those terms.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  */
  16
  17 #ifndef _LINUX_SW_SYNC_H
  18 #define _LINUX_SW_SYNC_H
  19
  20 #include <linux/types.h>
  21
  22 #ifdef __KERNEL__
  23
  24 #include <linux/sync.h>
  25
  26 struct sw_sync_timeline {
  27         struct  sync_timeline   obj;
  28
  29         u32                     value;
  30 };
  31
  32 struct sw_sync_pt {
  33         struct sync_pt          pt;
  34
  35         u32                     value;
  36 };
  37
  38 struct sw_sync_timeline *sw_sync_timeline_create(const char *name);
  39 void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc);
  40
  41 struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value);
  42
  43 #endif /* __KERNEL __ */
  44
  45 struct sw_sync_create_fence_data {
  46         __u32   value;
  47         char    name[32];
  48         __s32   fence; /* fd of new fence */
  49 };
  50
  51 #define SW_SYNC_IOC_MAGIC       'W'
  52
  53 #define SW_SYNC_IOC_CREATE_FENCE        _IOWR(SW_SYNC_IOC_MAGIC, 0,\
  54                 struct sw_sync_create_fence_data)
  55 #define SW_SYNC_IOC_INC                 _IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
  56
  57
  58 #endif /* _LINUX_SW_SYNC_H */