1 #ifndef _IPXE_UMALLOC_H
2 #define _IPXE_UMALLOC_H
7 * User memory allocation
11 FILE_LICENCE ( GPL2_OR_LATER );
14 #include <config/umalloc.h>
15 #include <ipxe/uaccess.h>
18 * Provide a user memory allocation API implementation
20 * @v _prefix Subsystem prefix
21 * @v _api_func API function
22 * @v _func Implementing function
24 #define PROVIDE_UMALLOC( _subsys, _api_func, _func ) \
25 PROVIDE_SINGLE_API ( UMALLOC_PREFIX_ ## _subsys, _api_func, _func )
27 /* Include all architecture-independent I/O API headers */
28 #include <ipxe/efi/efi_umalloc.h>
29 #include <ipxe/linux/linux_umalloc.h>
31 /* Include all architecture-dependent I/O API headers */
32 #include <bits/umalloc.h>
35 * Reallocate external memory
37 * @v userptr Memory previously allocated by umalloc(), or UNULL
38 * @v new_size Requested size
39 * @ret userptr Allocated memory, or UNULL
41 * Calling realloc() with a new size of zero is a valid way to free a
44 userptr_t urealloc ( userptr_t userptr, size_t new_size );
47 * Allocate external memory
49 * @v size Requested size
50 * @ret userptr Memory, or UNULL
52 * Memory is guaranteed to be aligned to a page boundary.
54 static inline __always_inline userptr_t umalloc ( size_t size ) {
55 return urealloc ( UNULL, size );
59 * Free external memory
61 * @v userptr Memory allocated by umalloc(), or UNULL
63 * If @c ptr is UNULL, no action is taken.
65 static inline __always_inline void ufree ( userptr_t userptr ) {
66 urealloc ( userptr, 0 );
69 #endif /* _IPXE_UMALLOC_H */