]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/malloc_simple.c
2 * Simple malloc implementation
4 * Copyright (c) 2014 Google, Inc
6 * SPDX-License-Identifier: GPL-2.0+
14 DECLARE_GLOBAL_DATA_PTR
;
16 void *malloc_simple(size_t bytes
)
21 new_ptr
= gd
->malloc_ptr
+ bytes
;
22 debug("%s: size=%zx, ptr=%lx, limit=%lx: ", __func__
, bytes
, new_ptr
,
24 if (new_ptr
> gd
->malloc_limit
) {
25 debug("space exhausted\n");
28 ptr
= map_sysmem(gd
->malloc_base
+ gd
->malloc_ptr
, bytes
);
29 gd
->malloc_ptr
= ALIGN(new_ptr
, sizeof(new_ptr
));
30 debug("%lx\n", (ulong
)ptr
);
35 void *memalign_simple(size_t align
, size_t bytes
)
40 addr
= ALIGN(gd
->malloc_base
+ gd
->malloc_ptr
, align
);
41 new_ptr
= addr
+ bytes
- gd
->malloc_base
;
42 if (new_ptr
> gd
->malloc_limit
) {
43 debug("space exhausted\n");
47 ptr
= map_sysmem(addr
, bytes
);
48 gd
->malloc_ptr
= ALIGN(new_ptr
, sizeof(new_ptr
));
49 debug("%lx\n", (ulong
)ptr
);
54 #if CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
55 void *calloc(size_t nmemb
, size_t elem_size
)
57 size_t size
= nmemb
* elem_size
;
61 memset(ptr
, '\0', size
);