1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
5 *
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:
12 *
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
15 * Software.
16 *
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
23 * SOFTWARE.
24 *
25 * Authors:
26 * Rob Clark <robclark@freedesktop.org>
27 */
28
29 #ifndef FREEDRENO_RINGBUFFER_H_
30 #define FREEDRENO_RINGBUFFER_H_
31
32 #include <freedreno_drmif.h>
33
34 /* the ringbuffer object is not opaque so that OUT_RING() type stuff
35 * can be inlined. Note that users should not make assumptions about
36 * the size of this struct.. more stuff will be added when we eventually
37 * have a kernel driver that can deal w/ reloc's..
38 */
39
40 struct fd_ringbuffer_funcs;
41 struct fd_ringmarker;
42
43 struct fd_ringbuffer {
44 int size;
45 uint32_t *cur, *end, *start, *last_start;
46 struct fd_pipe *pipe;
47 const struct fd_ringbuffer_funcs *funcs;
48 uint32_t last_timestamp;
49 struct fd_ringbuffer *parent;
50 };
51
52 struct fd_ringbuffer * fd_ringbuffer_new(struct fd_pipe *pipe,
53 uint32_t size);
54 void fd_ringbuffer_del(struct fd_ringbuffer *ring);
55 void fd_ringbuffer_set_parent(struct fd_ringbuffer *ring,
56 struct fd_ringbuffer *parent);
57 void fd_ringbuffer_reset(struct fd_ringbuffer *ring);
58 int fd_ringbuffer_flush(struct fd_ringbuffer *ring);
59 uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring);
60
fd_ringbuffer_emit(struct fd_ringbuffer * ring,uint32_t data)61 static inline void fd_ringbuffer_emit(struct fd_ringbuffer *ring,
62 uint32_t data)
63 {
64 (*ring->cur++) = data;
65 }
66
67 struct fd_reloc {
68 struct fd_bo *bo;
69 #define FD_RELOC_READ 0x0001
70 #define FD_RELOC_WRITE 0x0002
71 uint32_t flags;
72 uint32_t offset;
73 uint32_t or;
74 int32_t shift;
75 };
76
77 void fd_ringbuffer_reloc(struct fd_ringbuffer *ring, const struct fd_reloc *reloc);
78 void fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
79 struct fd_ringmarker *target, struct fd_ringmarker *end);
80
81 struct fd_ringmarker * fd_ringmarker_new(struct fd_ringbuffer *ring);
82 void fd_ringmarker_del(struct fd_ringmarker *marker);
83 void fd_ringmarker_mark(struct fd_ringmarker *marker);
84 uint32_t fd_ringmarker_dwords(struct fd_ringmarker *start,
85 struct fd_ringmarker *end);
86 int fd_ringmarker_flush(struct fd_ringmarker *marker);
87
88 #endif /* FREEDRENO_RINGBUFFER_H_ */
89