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/*
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 * Project: S.Ha.R.K.
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 *
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 * Coordinators:
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 *   Giorgio Buttazzo    <giorgio@sssup.it>
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *
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 * Authors     :
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *   (see the web pages for full authors list)
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 *
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 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
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 *
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 * http://www.sssup.it
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 * http://retis.sssup.it
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 * http://shark.sssup.it
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 */
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/**
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 ------------
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 CVS :        $Id: mem.c,v 1.3 2004-02-10 17:50:04 giacomo Exp $
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 File:        $File$
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 Revision:    $Revision: 1.3 $
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 Last update: $Date: 2004-02-10 17:50:04 $
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 ------------
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 Basic Memory Manager Functions:
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**/
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/*
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 * Copyright (C) 2000 Paolo Gai
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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#include <kernel/func.h>
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#include <kernel/lmm.h>
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static lmm_t lmm;
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static lmm_region_t region1M;
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static lmm_region_t region16M;
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static lmm_region_t region;
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void kern_mem_init(struct multiboot_info *multiboot)
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{
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  DWORD lowsize, highsize;
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  LIN_ADDR lowp, highp;
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  X_meminfo(&highp, &highsize, &lowp, &lowsize);
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  lmm_init(&lmm);
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  /* Three memory regions:
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     - under 1Mb
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     - from 1Mb to 16Mb
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     - all the other memory...
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  */
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  lmm_add_region(&lmm, &region1M , (void*)0x00000000, 0x000FFFFF,
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                                   MEMORY_UNDER_1M,       0);
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  lmm_add_region(&lmm, &region16M, (void*)0x00100000, 0x00FFFFFF,
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                                   MEMORY_FROM_1M_TO_16M, 1);
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  lmm_add_region(&lmm, &region   , (void*)0x01000000, 0xFEFFFFFF,
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  if (lowsize)
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    lmm_add_free(&lmm, (void *)lowp, lowsize-1);
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  if (highsize)
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    lmm_add_free(&lmm, (void *)highp+0x100000, highsize-0x100000);
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}
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void *kern_alloc(DWORD s)
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{
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  if (s==0) return NULL;
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  return lmm_alloc(&lmm, s, 0);
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}
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void *kern_alloc_aligned(size_t size, lmm_flags_t flags,
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                        int align_bits, DWORD align_ofs)
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{
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  return lmm_alloc_aligned(&lmm, size, flags, align_bits, align_ofs);
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}
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void *kern_alloc_page(lmm_flags_t flags)
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{
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  return lmm_alloc_page(&lmm, flags);
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}
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void *kern_alloc_gen(size_t size, lmm_flags_t flags,
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                    int align_bits, DWORD align_ofs,
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                    DWORD bounds_min, DWORD bounds_max)
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{
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  return lmm_alloc_gen(&lmm, size, flags, align_bits, align_ofs,
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                       bounds_min, bounds_max);
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}
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void kern_free(void *block, size_t size)
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{
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  lmm_free(&lmm, block, size);
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}
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void kern_free_page(void *block)
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{
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  lmm_free_page(&lmm, block);
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}
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void *DOS_alloc(DWORD size)
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{
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  return lmm_alloc(&lmm, size, MEMORY_UNDER_1M);
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}
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void DOS_free(void *ptr,DWORD size)
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{
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  lmm_free(&lmm, ptr, size);
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}
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void kern_mem_dump(void)
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{
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  lmm_dump(&lmm);
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  lmm_stats(&lmm);
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}