common/malloc_simple.c

   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                 panic("Out of pre-reloc memory");
  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