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
|
/*
* drivers/video/tegra/nvmap_heap.h
*
* GPU heap allocator.
*
* Copyright (c) 2010, NVIDIA Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __NVMAP_HEAP_H
#define __NVMAP_HEAP_H
struct device;
struct nvmap_heap;
struct attribute_group;
struct nvmap_heap_block {
unsigned long base;
unsigned int type;
struct nvmap_handle *handle;
};
#define NVMAP_HEAP_MIN_BUDDY_SIZE 8192
struct nvmap_heap *nvmap_heap_create(struct device *parent, const char *name,
unsigned long base, size_t len,
unsigned int buddy_size, void *arg);
void nvmap_heap_destroy(struct nvmap_heap *heap);
void *nvmap_heap_device_to_arg(struct device *dev);
void *nvmap_heap_to_arg(struct nvmap_heap *heap);
struct nvmap_heap_block *nvmap_heap_alloc(struct nvmap_heap *heap, size_t len,
size_t align, unsigned int prot,
struct nvmap_handle *handle);
struct nvmap_heap *nvmap_block_to_heap(struct nvmap_heap_block *b);
void nvmap_heap_free(struct nvmap_heap_block *block);
int nvmap_heap_create_group(struct nvmap_heap *heap,
const struct attribute_group *grp);
void nvmap_heap_remove_group(struct nvmap_heap *heap,
const struct attribute_group *grp);
int __init nvmap_heap_init(void);
void nvmap_heap_deinit(void);
#endif
|
