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> 11 #include <asm/io.h> 12 13 DECLARE_GLOBAL_DATA_PTR; 14 15 void *malloc_simple(size_t bytes) 16 { 17 ulong new_ptr; 18 void *ptr; 19 20 new_ptr = gd->malloc_ptr + bytes; 21 if (new_ptr > gd->malloc_limit) 22 return NULL; 23 ptr = map_sysmem(gd->malloc_base + gd->malloc_ptr, bytes); 24 gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr)); 25 return ptr; 26 } 27 28 #ifdef CONFIG_SYS_MALLOC_SIMPLE 29 void *calloc(size_t nmemb, size_t elem_size) 30 { 31 size_t size = nmemb * elem_size; 32 void *ptr; 33 34 ptr = malloc(size); 35 memset(ptr, '\0', size); 36 37 return ptr; 38 } 39 #endif 40