9bc058a2c58d86a13284db62e1cc1407aeebcf87
[mesa.git] / src / util / vma.h
1 /*
2 * Copyright © 2018 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #ifndef _UTIL_VMA_H
25 #define _UTIL_VMA_H
26
27 #include <stdint.h>
28 #include <stdio.h>
29
30 #include "list.h"
31
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35
36 struct util_vma_heap {
37 struct list_head holes;
38
39 /** If true, util_vma_heap_alloc will prefer high addresses
40 *
41 * Default is true.
42 */
43 bool alloc_high;
44 };
45
46 void util_vma_heap_init(struct util_vma_heap *heap,
47 uint64_t start, uint64_t size);
48 void util_vma_heap_finish(struct util_vma_heap *heap);
49
50 uint64_t util_vma_heap_alloc(struct util_vma_heap *heap,
51 uint64_t size, uint64_t alignment);
52
53 bool util_vma_heap_alloc_addr(struct util_vma_heap *heap,
54 uint64_t addr, uint64_t size);
55
56 void util_vma_heap_free(struct util_vma_heap *heap,
57 uint64_t offset, uint64_t size);
58
59 void util_vma_heap_print(struct util_vma_heap *heap, FILE *fp,
60 const char *tab, uint64_t total_size);
61
62 #ifdef __cplusplus
63 } /* extern C */
64 #endif
65
66 #endif /* _UTIL_DEBUG_H */