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
|
/*
* © Copyright 2018 Alyssa Rosenzweig
* Copyright (C) 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <panfrost-misc.h>
#include <panfrost-job.h>
#include "pan_bo.h"
#include "pan_context.h"
/* TODO: What does this actually have to be? */
#define ALIGNMENT 128
/* Transient command stream pooling: command stream uploads try to simply copy
* into whereever we left off. If there isn't space, we allocate a new entry
* into the pool and copy there */
struct panfrost_transfer
panfrost_allocate_transient(struct panfrost_batch *batch, size_t sz)
{
/* Pad the size */
sz = ALIGN_POT(sz, ALIGNMENT);
/* Find or create a suitable BO */
struct panfrost_bo *bo = NULL;
unsigned offset = 0;
bool fits_in_current = (batch->transient_offset + sz) < TRANSIENT_SLAB_SIZE;
if (likely(batch->transient_bo && fits_in_current)) {
/* We can reuse the current BO, so get it */
bo = batch->transient_bo;
/* Use the specified offset */
offset = batch->transient_offset;
batch->transient_offset = offset + sz;
} else {
size_t bo_sz = sz < TRANSIENT_SLAB_SIZE ?
TRANSIENT_SLAB_SIZE : ALIGN_POT(sz, 4096);
/* We can't reuse the current BO, but we can create a new one.
* We don't know what the BO will be used for, so let's flag it
* RW and attach it to both the fragment and vertex/tiler jobs.
* TODO: if we want fine grained BO assignment we should pass
* flags to this function and keep the read/write,
* fragment/vertex+tiler pools separate.
*/
bo = panfrost_batch_create_bo(batch, bo_sz, 0,
PAN_BO_ACCESS_PRIVATE |
PAN_BO_ACCESS_RW |
PAN_BO_ACCESS_VERTEX_TILER |
PAN_BO_ACCESS_FRAGMENT);
if (sz < TRANSIENT_SLAB_SIZE) {
batch->transient_bo = bo;
batch->transient_offset = offset + sz;
}
}
struct panfrost_transfer ret = {
.cpu = bo->cpu + offset,
.gpu = bo->gpu + offset,
};
return ret;
}
mali_ptr
panfrost_upload_transient(struct panfrost_batch *batch, const void *data,
size_t sz)
{
struct panfrost_transfer transfer = panfrost_allocate_transient(batch, sz);
memcpy(transfer.cpu, data, sz);
return transfer.gpu;
}
|
