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Commit | Line | Data |
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c9356be3 SG |
1 | /* |
2 | * Simple malloc implementation | |
3 | * | |
4 | * Copyright (c) 2014 Google, Inc | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <malloc.h> | |
0eb25b61 | 11 | #include <mapmem.h> |
c9356be3 SG |
12 | #include <asm/io.h> |
13 | ||
14 | DECLARE_GLOBAL_DATA_PTR; | |
15 | ||
16 | void *malloc_simple(size_t bytes) | |
17 | { | |
18 | ulong new_ptr; | |
19 | void *ptr; | |
20 | ||
21 | new_ptr = gd->malloc_ptr + bytes; | |
22 | if (new_ptr > gd->malloc_limit) | |
2c857170 | 23 | return NULL; |
c9356be3 SG |
24 | ptr = map_sysmem(gd->malloc_base + gd->malloc_ptr, bytes); |
25 | gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr)); | |
26 | return ptr; | |
27 | } | |
28 | ||
b6bfb6ff SG |
29 | void *memalign_simple(size_t align, size_t bytes) |
30 | { | |
31 | ulong addr, new_ptr; | |
32 | void *ptr; | |
33 | ||
34 | addr = ALIGN(gd->malloc_base + gd->malloc_ptr, bytes); | |
35 | new_ptr = addr + bytes; | |
36 | if (new_ptr > gd->malloc_limit) | |
37 | return NULL; | |
38 | ptr = map_sysmem(addr, bytes); | |
39 | gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr)); | |
40 | return ptr; | |
41 | } | |
42 | ||
c9356be3 SG |
43 | #ifdef CONFIG_SYS_MALLOC_SIMPLE |
44 | void *calloc(size_t nmemb, size_t elem_size) | |
45 | { | |
46 | size_t size = nmemb * elem_size; | |
47 | void *ptr; | |
48 | ||
49 | ptr = malloc(size); | |
50 | memset(ptr, '\0', size); | |
51 | ||
52 | return ptr; | |
53 | } | |
54 | #endif |