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1 | /* |
2 | * sync.h | |
3 | * | |
4 | * Copyright 2012 Google, Inc | |
5 | * | |
6 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
7 | * you may not use this file except in compliance with the License. | |
8 | * You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, software | |
13 | * distributed under the License is distributed on an "AS IS" BASIS, | |
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
15 | * See the License for the specific language governing permissions and | |
16 | * limitations under the License. | |
17 | */ | |
18 | ||
19 | #ifndef __SYS_CORE_SYNC_H | |
20 | #define __SYS_CORE_SYNC_H | |
21 | ||
22 | #include <sys/cdefs.h> | |
23 | #include <stdint.h> | |
24 | ||
25 | __BEGIN_DECLS | |
26 | ||
27 | // XXX: These structs are copied from the header "linux/sync.h". | |
28 | struct sync_fence_info_data { | |
29 | uint32_t len; | |
30 | char name[32]; | |
31 | int32_t status; | |
32 | uint8_t pt_info[0]; | |
33 | }; | |
34 | ||
35 | struct sync_pt_info { | |
36 | uint32_t len; | |
37 | char obj_name[32]; | |
38 | char driver_name[32]; | |
39 | int32_t status; | |
40 | uint64_t timestamp_ns; | |
41 | uint8_t driver_data[0]; | |
42 | }; | |
43 | ||
44 | /* timeout in msecs */ | |
45 | int sync_wait(int fd, int timeout); | |
46 | int sync_merge(const char *name, int fd1, int fd2); | |
47 | struct sync_fence_info_data *sync_fence_info(int fd); | |
48 | struct sync_pt_info *sync_pt_info(struct sync_fence_info_data *info, | |
49 | struct sync_pt_info *itr); | |
50 | void sync_fence_info_free(struct sync_fence_info_data *info); | |
51 | ||
52 | /* sw_sync is mainly inteded for testing and should not be complied into | |
53 | * production kernels | |
54 | */ | |
55 | ||
56 | int sw_sync_timeline_create(void); | |
57 | int sw_sync_timeline_inc(int fd, unsigned count); | |
58 | int sw_sync_fence_create(int fd, const char *name, unsigned value); | |
59 | ||
60 | __END_DECLS | |
61 | ||
62 | #endif /* __SYS_CORE_SYNC_H */ |