freeldr/freeldr/mm.h

   1 /*
   2  *  FreeLoader
   3  *  Copyright (C) 2001  Brian Palmer  <brianp@sginet.com>
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19
  20
  21 #ifndef __MEMORY_H
  22 #define __MEMORY_H
  23
  24 #include <multiboot.h>
  25
  26
  27 VOID    InitMemoryManager(PVOID BaseAddress, ULONG Length);
  28
  29 PVOID   AllocateMemory(ULONG NumberOfBytes);
  30 VOID    FreeMemory(PVOID MemBlock);
  31 ULONG   GetSystemMemorySize(VOID);                                      // Returns the amount of total usuable memory available to the memory manager
  32
  33 // These functions are implemented in mem.S
  34 int             GetExtendedMemorySize(void);                            // Returns extended memory size in KB
  35 int             GetConventionalMemorySize(void);                        // Returns conventional memory size in KB
  36 int             GetBiosMemoryMap(memory_map_t *mem_map);        // Fills mem_map structure with BIOS memory map and returns length of memory map
  37
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  47
  48 //BOOL  MmInitializeMemoryManager(ULONG LowMemoryStart, ULONG LowMemoryLength);
  49 //PVOID MmAllocateMemory(ULONG MemorySize);
  50 //VOID  MmFreeMemory(PVOID MemoryPointer);
  51 //PVOID MmAllocateLowMemory(ULONG MemorySize);
  52 //VOID  MmFreeLowMemory(PVOID MemoryPointer);
  53 //PVOID MmAllocateMemoryFrom1Mb(ULONG MemorySize);
  54
  55 #endif // defined __MEMORY_H