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git.ipfire.org Git - thirdparty/u-boot.git/blob - common/malloc_simple.c
1 // SPDX-License-Identifier: GPL-2.0+
3 * Simple malloc implementation
5 * Copyright (c) 2014 Google, Inc
13 DECLARE_GLOBAL_DATA_PTR
;
15 void *malloc_simple(size_t bytes
)
20 new_ptr
= gd
->malloc_ptr
+ bytes
;
21 debug("%s: size=%zx, ptr=%lx, limit=%lx: ", __func__
, bytes
, new_ptr
,
23 if (new_ptr
> gd
->malloc_limit
) {
24 debug("space exhausted\n");
27 ptr
= map_sysmem(gd
->malloc_base
+ gd
->malloc_ptr
, bytes
);
28 gd
->malloc_ptr
= ALIGN(new_ptr
, sizeof(new_ptr
));
29 debug("%lx\n", (ulong
)ptr
);
34 void *memalign_simple(size_t align
, size_t bytes
)
39 addr
= ALIGN(gd
->malloc_base
+ gd
->malloc_ptr
, align
);
40 new_ptr
= addr
+ bytes
- gd
->malloc_base
;
41 if (new_ptr
> gd
->malloc_limit
) {
42 debug("space exhausted\n");
46 ptr
= map_sysmem(addr
, bytes
);
47 gd
->malloc_ptr
= ALIGN(new_ptr
, sizeof(new_ptr
));
48 debug("%lx\n", (ulong
)ptr
);
53 #if CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
54 void *calloc(size_t nmemb
, size_t elem_size
)
56 size_t size
= nmemb
* elem_size
;
60 memset(ptr
, '\0', size
);