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/*
* Project: S.Ha.R.K.
*
* Coordinators:
* Giorgio Buttazzo <giorgio@sssup.it>
* Paolo Gai <pj@gandalf.sssup.it>
*
* Authors :
* Paolo Gai <pj@gandalf.sssup.it>
* Massimiliano Giorgi <massy@gandalf.sssup.it>
* Luca Abeni <luca@gandalf.sssup.it>
* (see the web pages for full authors list)
*
* ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
*
* http://www.sssup.it
* http://retis.sssup.it
* http://shark.sssup.it
*/
/**
------------
CVS : $Id: mem.h,v 1.1.1.1 2002-03-29 14:12:51 pj Exp $
File: $File$
Revision: $Revision: 1.1.1.1 $
Last update: $Date: 2002-03-29 14:12:51 $
------------
- Memory Management functions
**/
/*
* Copyright (C) 2000 Paolo Gai
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*---------------------------------------------------------------------*/
/* Memory Management */
/*---------------------------------------------------------------------*/
#ifndef __KERNEL_MEM_H__
#define __KERNEL_MEM_H__
#include <kernel/lmm.h>
/* Memory regions to be passed as flags... */
#define MEMORY_UNDER_1M 1
#define MEMORY_FROM_1M_TO_16M 2
#define MEMORY_UNDER_16M 3
/* init the memory allocator */
void kern_mem_init(struct multiboot_info *multiboot);
/* alloc memory without requirements on the address... */
void *kern_alloc(DWORD s);
/* alloc an aligned block of memory */
void *kern_alloc_aligned(size_t size, lmm_flags_t flags,
int align_bits, DWORD align_ofs);
/* alloc memory with general constraints */
void *kern_alloc_gen(size_t size, lmm_flags_t flags,
int align_bits, DWORD align_ofs,
DWORD bounds_min, DWORD bounds_max);
/* free a block */
void kern_free(void *block, size_t size);
/* alloc and free a page */
void *kern_alloc_page(lmm_flags_t flags);
void kern_free_page(void *block);
/* alloc and free memory <1Mb */
void *DOS_alloc(DWORD size);
void DOS_free(void *ptr,DWORD size);
/* statistical stuffs */
void kern_mem_dump(void);
#endif