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
|
/*
* © Copyright 2019 Alyssa Rosenzweig
* © Copyright 2019 Collabora, Ltd.
*
* 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.
*
*/
#ifndef __PAN_BO_H__
#define __PAN_BO_H__
#include <panfrost-misc.h>
#include "pipe/p_state.h"
#include "util/list.h"
struct panfrost_screen;
/* Flags for allocated memory */
/* This memory region is executable */
#define PAN_BO_EXECUTE (1 << 0)
/* This memory region should be lazily allocated and grow-on-page-fault. Must
* be used in conjunction with INVISIBLE */
#define PAN_BO_GROWABLE (1 << 1)
/* This memory region should not be mapped to the CPU */
#define PAN_BO_INVISIBLE (1 << 2)
/* This memory region will be used for varyings and needs to have the cache
* bits twiddled accordingly */
#define PAN_BO_COHERENT_LOCAL (1 << 3)
/* This region may not be used immediately and will not mmap on allocate
* (semantically distinct from INVISIBLE, which cannot never be mmaped) */
#define PAN_BO_DELAY_MMAP (1 << 4)
/* Some BOs shouldn't be returned back to the reuse BO cache, use this flag to
* let the BO logic know about this contraint. */
#define PAN_BO_DONT_REUSE (1 << 5)
/* BO has been imported */
#define PAN_BO_IMPORTED (1 << 6)
/* BO has been exported */
#define PAN_BO_EXPORTED (1 << 7)
/* GPU access flags */
/* BO is either shared (can be accessed by more than one GPU batch) or private
* (reserved by a specific GPU job). */
#define PAN_BO_ACCESS_PRIVATE (0 << 0)
#define PAN_BO_ACCESS_SHARED (1 << 0)
/* BO is being read/written by the GPU */
#define PAN_BO_ACCESS_READ (1 << 1)
#define PAN_BO_ACCESS_WRITE (1 << 2)
#define PAN_BO_ACCESS_RW (PAN_BO_ACCESS_READ | PAN_BO_ACCESS_WRITE)
/* BO is accessed by the vertex/tiler job. */
#define PAN_BO_ACCESS_VERTEX_TILER (1 << 3)
/* BO is accessed by the fragment job. */
#define PAN_BO_ACCESS_FRAGMENT (1 << 4)
struct panfrost_bo {
/* Must be first for casting */
struct list_head link;
struct pipe_reference reference;
struct panfrost_screen *screen;
/* Mapping for the entire object (all levels) */
uint8_t *cpu;
/* GPU address for the object */
mali_ptr gpu;
/* Size of all entire trees */
size_t size;
int gem_handle;
uint32_t flags;
/* Combination of PAN_BO_ACCESS_{READ,WRITE} flags encoding pending
* GPU accesses to this BO. Useful to avoid calling the WAIT_BO ioctl
* when the BO is idle.
*/
uint32_t gpu_access;
};
static inline uint32_t
panfrost_bo_access_for_stage(enum pipe_shader_type stage)
{
assert(stage == PIPE_SHADER_FRAGMENT ||
stage == PIPE_SHADER_VERTEX);
return stage == PIPE_SHADER_FRAGMENT ?
PAN_BO_ACCESS_FRAGMENT :
PAN_BO_ACCESS_VERTEX_TILER;
}
bool
panfrost_bo_wait(struct panfrost_bo *bo, int64_t timeout_ns,
uint32_t access_type);
void
panfrost_bo_reference(struct panfrost_bo *bo);
void
panfrost_bo_unreference(struct panfrost_bo *bo);
struct panfrost_bo *
panfrost_bo_create(struct panfrost_screen *screen, size_t size,
uint32_t flags);
void
panfrost_bo_mmap(struct panfrost_bo *bo);
struct panfrost_bo *
panfrost_bo_import(struct panfrost_screen *screen, int fd);
int
panfrost_bo_export(struct panfrost_bo *bo);
void
panfrost_bo_cache_evict_all(struct panfrost_screen *screen);
#endif /* __PAN_BO_H__ */
|
