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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>
* (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.c,v 1.3 2004-02-10 17:50:04 giacomo Exp $
File: $File$
Revision: $Revision: 1.3 $
Last update: $Date: 2004-02-10 17:50:04 $
------------
Basic Memory Manager 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
*
*/
#include <kernel/func.h>
#include <kernel/lmm.h>
static lmm_t lmm;
static lmm_region_t region1M;
static lmm_region_t region16M;
static lmm_region_t region;
void kern_mem_init(struct multiboot_info *multiboot)
{
DWORD lowsize, highsize;
LIN_ADDR lowp, highp;
X_meminfo(&highp, &highsize, &lowp, &lowsize);
lmm_init(&lmm);
/* Three memory regions:
- under 1Mb
- from 1Mb to 16Mb
- all the other memory...
*/
lmm_add_region(&lmm, ®ion1M , (void*)0x00000000, 0x000FFFFF,
MEMORY_UNDER_1M, 0);
lmm_add_region(&lmm, ®ion16M, (void*)0x00100000, 0x00FFFFFF,
MEMORY_FROM_1M_TO_16M, 1);
lmm_add_region(&lmm, ®ion , (void*)0x01000000, 0xFEFFFFFF,
0 , 2);
if (lowsize)
lmm_add_free(&lmm, (void *)lowp, lowsize-1);
if (highsize)
lmm_add_free(&lmm, (void *)highp+0x100000, highsize-0x100000);
}
void *kern_alloc(DWORD s)
{
if (s==0) return NULL;
return lmm_alloc(&lmm, s, 0);
}
void *kern_alloc_aligned(size_t size, lmm_flags_t flags,
int align_bits, DWORD align_ofs)
{
return lmm_alloc_aligned(&lmm, size, flags, align_bits, align_ofs);
}
void *kern_alloc_page(lmm_flags_t flags)
{
return lmm_alloc_page(&lmm, flags);
}
void *kern_alloc_gen(size_t size, lmm_flags_t flags,
int align_bits, DWORD align_ofs,
DWORD bounds_min, DWORD bounds_max)
{
return lmm_alloc_gen(&lmm, size, flags, align_bits, align_ofs,
bounds_min, bounds_max);
}
void kern_free(void *block, size_t size)
{
lmm_free(&lmm, block, size);
}
void kern_free_page(void *block)
{
lmm_free_page(&lmm, block);
}
void *DOS_alloc(DWORD size)
{
return lmm_alloc(&lmm, size, MEMORY_UNDER_1M);
}
void DOS_free(void *ptr,DWORD size)
{
lmm_free(&lmm, ptr, size);
}
void kern_mem_dump(void)
{
lmm_dump(&lmm);
lmm_stats(&lmm);
}