1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * Rob Clark <robclark@freedesktop.org>
29 #include "util/u_inlines.h"
31 #include "freedreno_fence.h"
32 #include "freedreno_context.h"
33 #include "freedreno_util.h"
35 struct pipe_fence_handle
{
36 struct pipe_reference reference
;
37 struct fd_context
*ctx
;
38 struct fd_screen
*screen
;
43 fd_screen_fence_ref(struct pipe_screen
*pscreen
,
44 struct pipe_fence_handle
**ptr
,
45 struct pipe_fence_handle
*pfence
)
47 if (pipe_reference(&(*ptr
)->reference
, &pfence
->reference
))
53 /* TODO we need to spiff out libdrm_freedreno a bit to allow passing
54 * the timeout.. and maybe a better way to check if fence has been
55 * signaled. The current implementation is a bit lame for now to
56 * avoid bumping libdrm version requirement.
59 boolean
fd_screen_fence_signalled(struct pipe_screen
*screen
,
60 struct pipe_fence_handle
*fence
)
62 uint32_t timestamp
= fd_ringbuffer_timestamp(fence
->ctx
->ring
);
64 /* TODO util helper for compare w/ rollover? */
65 return timestamp
>= fence
->timestamp
;
68 boolean
fd_screen_fence_finish(struct pipe_screen
*screen
,
69 struct pipe_fence_handle
*fence
,
73 return fd_screen_fence_signalled(screen
, fence
);
75 if (fd_pipe_wait(fence
->screen
->pipe
, fence
->timestamp
))
81 struct pipe_fence_handle
* fd_fence_create(struct pipe_context
*pctx
)
83 struct pipe_fence_handle
*fence
;
84 struct fd_context
*ctx
= fd_context(pctx
);
86 fence
= CALLOC_STRUCT(pipe_fence_handle
);
90 pipe_reference_init(&fence
->reference
, 1);
93 fence
->screen
= ctx
->screen
;
94 fence
->timestamp
= fd_ringbuffer_timestamp(ctx
->ring
);