1 /****************************************************************************
2 * Copyright (C) 2015 Intel Corporation. All Rights Reserved.
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 shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 ***************************************************************************/
21
22 #ifndef SWR_FENCE_H
23 #define SWR_FENCE_H
24
25 #include "pipe/p_state.h"
26 #include "util/u_inlines.h"
27
28 #include "swr_fence_work.h"
29
30 struct pipe_screen;
31
32 struct swr_fence {
33 struct pipe_reference reference;
34
35 uint64_t read;
36 uint64_t write;
37
38 unsigned pending;
39
40 unsigned id; /* Just for reference */
41
42 struct {
43 uint32_t count;
44 struct swr_fence_work head;
45 struct swr_fence_work *tail;
46 } work;
47 };
48
49
50 static inline struct swr_fence *
swr_fence(struct pipe_fence_handle * fence)51 swr_fence(struct pipe_fence_handle *fence)
52 {
53 return (struct swr_fence *)fence;
54 }
55
56
57 static INLINE bool
swr_is_fence_done(struct pipe_fence_handle * fence_handle)58 swr_is_fence_done(struct pipe_fence_handle *fence_handle)
59 {
60 struct swr_fence *fence = swr_fence(fence_handle);
61 return (fence->read == fence->write);
62 }
63
64 static INLINE bool
swr_is_fence_pending(struct pipe_fence_handle * fence_handle)65 swr_is_fence_pending(struct pipe_fence_handle *fence_handle)
66 {
67 return swr_fence(fence_handle)->pending;
68 }
69
70
71 void swr_fence_init(struct pipe_screen *screen);
72
73 struct pipe_fence_handle *swr_fence_create();
74
75 void swr_fence_reference(struct pipe_screen *screen,
76 struct pipe_fence_handle **ptr,
77 struct pipe_fence_handle *f);
78
79 bool swr_fence_finish(struct pipe_screen *screen,
80 struct pipe_context *ctx,
81 struct pipe_fence_handle *fence_handle,
82 uint64_t timeout);
83
84 void
85 swr_fence_submit(struct swr_context *ctx, struct pipe_fence_handle *fence);
86
87 uint64_t swr_get_timestamp(struct pipe_screen *screen);
88
89 #endif
90