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
|
/*
* Copyright (c) 2023 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Hyra nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <vm/dynalloc.h>
#include <vm/vm.h>
/*
* Dynamically allocates memory
*
* @sz: The amount of bytes to allocate
*/
void *
dynalloc(size_t sz)
{
/* TODO: Per CPU */
struct vm_ctx vm_ctx = vm_get_bsp_ctx();
void *tmp;
spinlock_acquire(&vm_ctx.dynalloc_lock);
tmp = tlsf_malloc(vm_ctx.tlsf_ctx, sz);
spinlock_release(&vm_ctx.dynalloc_lock);
return tmp;
}
/*
* Reallocates memory pool created by `dynalloc()'
*
* @old_ptr: Pointer to old pool.
* @newsize: Size of new pool.
*/
void *
dynrealloc(void *old_ptr, size_t newsize)
{
/* TODO: Per CPU */
struct vm_ctx vm_ctx = vm_get_bsp_ctx();
void *tmp;
spinlock_acquire(&vm_ctx.dynalloc_lock);
tmp = tlsf_realloc(vm_ctx.tlsf_ctx, old_ptr, newsize);
spinlock_release(&vm_ctx.dynalloc_lock);
return tmp;
}
/*
* Free dynamically allocated memory
*
* @ptr: Pointer to base of memory.
*/
void
dynfree(void *ptr)
{
/* TODO: Per CPU */
struct vm_ctx vm_ctx = vm_get_bsp_ctx();
spinlock_acquire(&vm_ctx.dynalloc_lock);
tlsf_free(vm_ctx.tlsf_ctx, ptr);
spinlock_release(&vm_ctx.dynalloc_lock);
}
|
