1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#ifndef FREEDRENO_RINGBUFFER_H_
#define FREEDRENO_RINGBUFFER_H_
#include <freedreno_drmif.h>
/* the ringbuffer object is not opaque so that OUT_RING() type stuff
* can be inlined. Note that users should not make assumptions about
* the size of this struct.
*/
struct fd_ringbuffer_funcs;
enum fd_ringbuffer_flags {
/* Ringbuffer is a "state object", which is potentially reused
* many times, rather than being used in one-shot mode linked
* to a parent ringbuffer.
*/
FD_RINGBUFFER_OBJECT = 0x1,
/* Hint that the stateobj will be used for streaming state
* that is used once or a few times and then discarded.
*
* For sub-allocation, non streaming stateobj's should be
* sub-allocated from a page size buffer, so one long lived
* state obj doesn't prevent other pages from being freed.
* (Ie. it would be no worse than allocating a page sized
* bo for each small non-streaming stateobj).
*
* But streaming stateobj's could be sub-allocated from a
* larger buffer to reduce the alloc/del overhead.
*/
FD_RINGBUFFER_STREAMING = 0x2,
};
struct fd_ringbuffer {
int size;
uint32_t *cur, *end, *start, *last_start;
struct fd_pipe *pipe;
const struct fd_ringbuffer_funcs *funcs;
uint32_t last_timestamp;
struct fd_ringbuffer *parent;
/* for users of fd_ringbuffer to store their own private per-
* ringbuffer data
*/
void *user;
enum fd_ringbuffer_flags flags;
/* This is a bit gross, but we can't use atomic_t in exported
* headers. OTOH, we don't need the refcnt to be publicly
* visible. The only reason that this struct is exported is
* because fd_ringbuffer_emit needs to be something that can
* be inlined for performance reasons.
*/
union {
#ifdef HAS_ATOMIC_OPS
atomic_t refcnt;
#endif
uint64_t __pad;
};
};
struct fd_ringbuffer * fd_ringbuffer_new(struct fd_pipe *pipe,
uint32_t size);
will_be_deprecated
struct fd_ringbuffer * fd_ringbuffer_new_object(struct fd_pipe *pipe,
uint32_t size);
struct fd_ringbuffer * fd_ringbuffer_new_flags(struct fd_pipe *pipe,
uint32_t size, enum fd_ringbuffer_flags flags);
struct fd_ringbuffer *fd_ringbuffer_ref(struct fd_ringbuffer *ring);
void fd_ringbuffer_del(struct fd_ringbuffer *ring);
void fd_ringbuffer_set_parent(struct fd_ringbuffer *ring,
struct fd_ringbuffer *parent);
will_be_deprecated
void fd_ringbuffer_reset(struct fd_ringbuffer *ring);
int fd_ringbuffer_flush(struct fd_ringbuffer *ring);
/* in_fence_fd: -1 for no in-fence, else fence fd
* out_fence_fd: NULL for no output-fence requested, else ptr to return out-fence
*/
int fd_ringbuffer_flush2(struct fd_ringbuffer *ring, int in_fence_fd,
int *out_fence_fd);
void fd_ringbuffer_grow(struct fd_ringbuffer *ring, uint32_t ndwords);
uint32_t fd_ringbuffer_timestamp(struct fd_ringbuffer *ring);
static inline void fd_ringbuffer_emit(struct fd_ringbuffer *ring,
uint32_t data)
{
(*ring->cur++) = data;
}
struct fd_reloc {
struct fd_bo *bo;
#define FD_RELOC_READ 0x0001
#define FD_RELOC_WRITE 0x0002
uint32_t flags;
uint32_t offset;
uint32_t or;
int32_t shift;
uint32_t orhi; /* used for a5xx+ */
};
/* NOTE: relocs are 2 dwords on a5xx+ */
void fd_ringbuffer_reloc2(struct fd_ringbuffer *ring, const struct fd_reloc *reloc);
will_be_deprecated void fd_ringbuffer_reloc(struct fd_ringbuffer *ring, const struct fd_reloc *reloc);
uint32_t fd_ringbuffer_cmd_count(struct fd_ringbuffer *ring);
uint32_t fd_ringbuffer_emit_reloc_ring_full(struct fd_ringbuffer *ring,
struct fd_ringbuffer *target, uint32_t cmd_idx);
uint32_t fd_ringbuffer_size(struct fd_ringbuffer *ring);
#endif /* FREEDRENO_RINGBUFFER_H_ */
|
