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1 | /* |
2 | * Copyright © 2017 Intel Corporation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the next | |
12 | * paragraph) shall be included in all copies or substantial portions of the | |
13 | * Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS | |
21 | * IN THE SOFTWARE. | |
22 | * | |
23 | */ | |
24 | ||
25 | #ifndef __I915_SYNCMAP_H__ | |
26 | #define __I915_SYNCMAP_H__ | |
27 | ||
28 | #include <linux/types.h> | |
29 | ||
30 | struct i915_syncmap; | |
31 | #define KSYNCMAP 16 /* radix of the tree, how many slots in each layer */ | |
32 | ||
33 | void i915_syncmap_init(struct i915_syncmap **root); | |
34 | int i915_syncmap_set(struct i915_syncmap **root, u64 id, u32 seqno); | |
35 | bool i915_syncmap_is_later(struct i915_syncmap **root, u64 id, u32 seqno); | |
36 | void i915_syncmap_free(struct i915_syncmap **root); | |
37 | ||
38 | #endif /* __I915_SYNCMAP_H__ */ |