blob: b0e5564584e970d052d8907837b99380215811e7 (
plain)
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
|
#ifndef _GPXE_UMALLOC_H
#define _GPXE_UMALLOC_H
/**
* @file
*
* User memory allocation
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <gpxe/api.h>
#include <config/umalloc.h>
#include <gpxe/uaccess.h>
/**
* Provide a user memory allocation API implementation
*
* @v _prefix Subsystem prefix
* @v _api_func API function
* @v _func Implementing function
*/
#define PROVIDE_UMALLOC( _subsys, _api_func, _func ) \
PROVIDE_SINGLE_API ( UMALLOC_PREFIX_ ## _subsys, _api_func, _func )
/* Include all architecture-independent I/O API headers */
#include <gpxe/efi/efi_umalloc.h>
/* Include all architecture-dependent I/O API headers */
#include <bits/umalloc.h>
/**
* Reallocate external memory
*
* @v userptr Memory previously allocated by umalloc(), or UNULL
* @v new_size Requested size
* @ret userptr Allocated memory, or UNULL
*
* Calling realloc() with a new size of zero is a valid way to free a
* memory block.
*/
userptr_t urealloc ( userptr_t userptr, size_t new_size );
/**
* Allocate external memory
*
* @v size Requested size
* @ret userptr Memory, or UNULL
*
* Memory is guaranteed to be aligned to a page boundary.
*/
static inline __always_inline userptr_t umalloc ( size_t size ) {
return urealloc ( UNULL, size );
}
/**
* Free external memory
*
* @v userptr Memory allocated by umalloc(), or UNULL
*
* If @c ptr is UNULL, no action is taken.
*/
static inline __always_inline void ufree ( userptr_t userptr ) {
urealloc ( userptr, 0 );
}
#endif /* _GPXE_UMALLOC_H */
|
