]> Git Repo - J-u-boot.git/blame - common/malloc_simple.c
common: Kconfig: use 'vidconsole' name instead of old 'video'
[J-u-boot.git] / common / malloc_simple.c
CommitLineData
83d290c5 1// SPDX-License-Identifier: GPL-2.0+
c9356be3
SG
2/*
3 * Simple malloc implementation
4 *
5 * Copyright (c) 2014 Google, Inc
c9356be3
SG
6 */
7
7cbd2d2e
SG
8#define LOG_CATEGORY LOGC_ALLOC
9
c9356be3 10#include <common.h>
f7ae49fc 11#include <log.h>
c9356be3 12#include <malloc.h>
0eb25b61 13#include <mapmem.h>
401d1c4f 14#include <asm/global_data.h>
c9356be3
SG
15#include <asm/io.h>
16
17DECLARE_GLOBAL_DATA_PTR;
18
7cbd2d2e 19static void *alloc_simple(size_t bytes, int align)
c9356be3 20{
7cbd2d2e 21 ulong addr, new_ptr;
c9356be3
SG
22 void *ptr;
23
7cbd2d2e
SG
24 addr = ALIGN(gd->malloc_base + gd->malloc_ptr, align);
25 new_ptr = addr + bytes - gd->malloc_base;
26 log_debug("size=%zx, ptr=%lx, limit=%lx: ", bytes, new_ptr,
27 gd->malloc_limit);
9a01cca7 28 if (new_ptr > gd->malloc_limit) {
7cbd2d2e 29 log_err("alloc space exhausted\n");
2c857170 30 return NULL;
9a01cca7 31 }
7cbd2d2e
SG
32
33 ptr = map_sysmem(addr, bytes);
c9356be3 34 gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr));
836ac74c 35
c9356be3
SG
36 return ptr;
37}
38
7cbd2d2e 39void *malloc_simple(size_t bytes)
b6bfb6ff 40{
b6bfb6ff
SG
41 void *ptr;
42
7cbd2d2e
SG
43 ptr = alloc_simple(bytes, 1);
44 if (!ptr)
45 return ptr;
1923d54b 46
7cbd2d2e
SG
47 log_debug("%lx\n", (ulong)ptr);
48
49 return ptr;
50}
51
52void *memalign_simple(size_t align, size_t bytes)
53{
54 void *ptr;
55
56 ptr = alloc_simple(bytes, align);
57 if (!ptr)
58 return ptr;
59 log_debug("aligned to %lx\n", (ulong)ptr);
836ac74c 60
b6bfb6ff
SG
61 return ptr;
62}
63
1eb0c03c 64#if CONFIG_IS_ENABLED(SYS_MALLOC_SIMPLE)
c9356be3
SG
65void *calloc(size_t nmemb, size_t elem_size)
66{
67 size_t size = nmemb * elem_size;
68 void *ptr;
69
70 ptr = malloc(size);
7cbd2d2e
SG
71 if (!ptr)
72 return ptr;
73 memset(ptr, '\0', size);
c9356be3
SG
74
75 return ptr;
76}
77#endif
7cbd2d2e
SG
78
79void malloc_simple_info(void)
80{
81 log_info("malloc_simple: %lx bytes used, %lx remain\n", gd->malloc_ptr,
82 CONFIG_VAL(SYS_MALLOC_F_LEN) - gd->malloc_ptr);
83}
This page took 0.332219 seconds and 4 git commands to generate.