1/*
2 * Copyright 2018 Chromium.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24#ifndef VIRGL_TRANSFER_QUEUE_H
25#define VIRGL_TRANSFER_QUEUE_H
26
27#include "pipe/p_defines.h"
28#include "util/list.h"
29
30struct virgl_cmd_buf;
31struct virgl_screen;
32struct virgl_context;
33struct virgl_transfer;
34
35struct virgl_transfer_queue {
36   struct list_head transfer_list;
37   struct virgl_screen *vs;
38   struct virgl_context *vctx;
39   struct virgl_cmd_buf *tbuf;
40   uint32_t num_dwords;
41};
42
43void virgl_transfer_queue_init(struct virgl_transfer_queue *queue,
44                               struct virgl_context *vctx);
45
46void virgl_transfer_queue_fini(struct virgl_transfer_queue *queue);
47
48int virgl_transfer_queue_unmap(struct virgl_transfer_queue *queue,
49                               struct virgl_transfer *transfer);
50
51int virgl_transfer_queue_clear(struct virgl_transfer_queue *queue,
52                               struct virgl_cmd_buf *buf);
53
54bool virgl_transfer_queue_is_queued(struct virgl_transfer_queue *queue,
55                                    struct virgl_transfer *transfer);
56
57/*
58 * Search the transfer queue for a transfer suitable for extension and
59 * extend it to include the specified data.
60 */
61bool virgl_transfer_queue_extend_buffer(struct virgl_transfer_queue *queue,
62                                        const struct virgl_hw_res *hw_res,
63                                        unsigned offset, unsigned size,
64                                        const void *data);
65
66#endif /* VIRGL_TRANSFER_QUEUE_H */
67