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
40struct fd_ringbuffer_funcs;
41struct fd_ringmarker;
42
43struct 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
52struct fd_ringbuffer * fd_ringbuffer_new(struct fd_pipe *pipe,
53		uint32_t size);
54void fd_ringbuffer_del(struct fd_ringbuffer *ring);
55void fd_ringbuffer_set_parent(struct fd_ringbuffer *ring,
56		struct fd_ringbuffer *parent);
57void fd_ringbuffer_reset(struct fd_ringbuffer *ring);
58int fd_ringbuffer_flush(struct fd_ringbuffer *ring);
59/* in_fence_fd: -1 for no in-fence, else fence fd
60 * out_fence_fd: NULL for no output-fence requested, else ptr to return out-fence
61 */
62int fd_ringbuffer_flush2(struct fd_ringbuffer *ring, int in_fence_fd,
63		int *out_fence_fd);
64void fd_ringbuffer_grow(struct fd_ringbuffer *ring, uint32_t ndwords);
65uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring);
66
67static inline void fd_ringbuffer_emit(struct fd_ringbuffer *ring,
68		uint32_t data)
69{
70	(*ring->cur++) = data;
71}
72
73struct fd_reloc {
74	struct fd_bo *bo;
75#define FD_RELOC_READ             0x0001
76#define FD_RELOC_WRITE            0x0002
77	uint32_t flags;
78	uint32_t offset;
79	uint32_t or;
80	int32_t  shift;
81	uint32_t orhi;      /* used for a5xx+ */
82};
83
84/* NOTE: relocs are 2 dwords on a5xx+ */
85
86void fd_ringbuffer_reloc2(struct fd_ringbuffer *ring, const struct fd_reloc *reloc);
87will_be_deprecated void fd_ringbuffer_reloc(struct fd_ringbuffer *ring, const struct fd_reloc *reloc);
88will_be_deprecated void fd_ringbuffer_emit_reloc_ring(struct fd_ringbuffer *ring,
89		struct fd_ringmarker *target, struct fd_ringmarker *end);
90uint32_t fd_ringbuffer_cmd_count(struct fd_ringbuffer *ring);
91uint32_t fd_ringbuffer_emit_reloc_ring_full(struct fd_ringbuffer *ring,
92		struct fd_ringbuffer *target, uint32_t cmd_idx);
93
94will_be_deprecated struct fd_ringmarker * fd_ringmarker_new(struct fd_ringbuffer *ring);
95will_be_deprecated void fd_ringmarker_del(struct fd_ringmarker *marker);
96will_be_deprecated void fd_ringmarker_mark(struct fd_ringmarker *marker);
97will_be_deprecated uint32_t fd_ringmarker_dwords(struct fd_ringmarker *start,
98		struct fd_ringmarker *end);
99will_be_deprecated int fd_ringmarker_flush(struct fd_ringmarker *marker);
100
101#endif /* FREEDRENO_RINGBUFFER_H_ */
102