1 /*
2 * Copyright (c) 2012-2015 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the 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 NON-INFRINGEMENT. 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
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Wladimir J. van der Laan <laanwj@gmail.com>
25 * Rob Clark <robclark@freedesktop.org>
26 */
27
28 #include <libsync.h>
29
30 #include "etnaviv_fence.h"
31 #include "etnaviv_context.h"
32 #include "etnaviv_screen.h"
33
34 #include "util/u_inlines.h"
35 #include "util/u_memory.h"
36
37 struct pipe_fence_handle {
38 struct pipe_reference reference;
39 struct etna_context *ctx;
40 struct etna_screen *screen;
41 int fence_fd;
42 uint32_t timestamp;
43 };
44
45 static void
etna_fence_destroy(struct pipe_fence_handle * fence)46 etna_fence_destroy(struct pipe_fence_handle *fence)
47 {
48 if (fence->fence_fd != -1)
49 close(fence->fence_fd);
50 FREE(fence);
51 }
52
53 static void
etna_screen_fence_reference(struct pipe_screen * pscreen,struct pipe_fence_handle ** ptr,struct pipe_fence_handle * fence)54 etna_screen_fence_reference(struct pipe_screen *pscreen,
55 struct pipe_fence_handle **ptr,
56 struct pipe_fence_handle *fence)
57 {
58 if (pipe_reference(&(*ptr)->reference, &fence->reference))
59 etna_fence_destroy(*ptr);
60
61 *ptr = fence;
62 }
63
64 static boolean
etna_screen_fence_finish(struct pipe_screen * pscreen,struct pipe_context * ctx,struct pipe_fence_handle * fence,uint64_t timeout)65 etna_screen_fence_finish(struct pipe_screen *pscreen, struct pipe_context *ctx,
66 struct pipe_fence_handle *fence, uint64_t timeout)
67 {
68 if (fence->fence_fd != -1)
69 return !sync_wait(fence->fence_fd, timeout / 1000000);
70
71 if (etna_pipe_wait_ns(fence->screen->pipe, fence->timestamp, timeout))
72 return false;
73
74 return true;
75 }
76
77 void
etna_create_fence_fd(struct pipe_context * pctx,struct pipe_fence_handle ** pfence,int fd)78 etna_create_fence_fd(struct pipe_context *pctx,
79 struct pipe_fence_handle **pfence, int fd)
80 {
81 *pfence = etna_fence_create(pctx, dup(fd));
82 }
83
84 void
etna_fence_server_sync(struct pipe_context * pctx,struct pipe_fence_handle * pfence)85 etna_fence_server_sync(struct pipe_context *pctx,
86 struct pipe_fence_handle *pfence)
87 {
88 struct etna_context *ctx = etna_context(pctx);
89
90 sync_accumulate("etnaviv", &ctx->in_fence_fd, pfence->fence_fd);
91 }
92
93 static int
etna_screen_fence_get_fd(struct pipe_screen * pscreen,struct pipe_fence_handle * pfence)94 etna_screen_fence_get_fd(struct pipe_screen *pscreen,
95 struct pipe_fence_handle *pfence)
96 {
97 return dup(pfence->fence_fd);
98 }
99
100 struct pipe_fence_handle *
etna_fence_create(struct pipe_context * pctx,int fence_fd)101 etna_fence_create(struct pipe_context *pctx, int fence_fd)
102 {
103 struct pipe_fence_handle *fence;
104 struct etna_context *ctx = etna_context(pctx);
105
106 fence = CALLOC_STRUCT(pipe_fence_handle);
107 if (!fence)
108 return NULL;
109
110 pipe_reference_init(&fence->reference, 1);
111
112 fence->ctx = ctx;
113 fence->screen = ctx->screen;
114 fence->timestamp = etna_cmd_stream_timestamp(ctx->stream);
115 fence->fence_fd = fence_fd;
116
117 return fence;
118 }
119
120 void
etna_fence_screen_init(struct pipe_screen * pscreen)121 etna_fence_screen_init(struct pipe_screen *pscreen)
122 {
123 pscreen->fence_reference = etna_screen_fence_reference;
124 pscreen->fence_finish = etna_screen_fence_finish;
125 pscreen->fence_get_fd = etna_screen_fence_get_fd;
126 }
127