Subversion Repositories shark

Rev

Rev 3 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 pj 1 
/*
2 
 * Project: S.Ha.R.K.
3 
 *
4 
 * Coordinators:
5 
 *   Giorgio Buttazzo    <giorgio@sssup.it>
6 
 *   Paolo Gai           <pj@gandalf.sssup.it>
7 
 *
8 
 * Authors     :
9 
 *   Paolo Gai           <pj@gandalf.sssup.it>
10 
 *   (see the web pages for full authors list)
11 
 *
12 
 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
13 
 *
14 
 * http://www.sssup.it
15 
 * http://retis.sssup.it
16 
 * http://shark.sssup.it
17 
 */
18 
 
19 
/**
20 
 ------------
326 giacomo 21 
 CVS :        $Id: mem.c,v 1.2 2003-11-12 17:28:20 giacomo Exp $
2 pj 22 
 
23 
 File:        $File$
326 giacomo 24 
 Revision:    $Revision: 1.2 $
25 
 Last update: $Date: 2003-11-12 17:28:20 $
2 pj 26 
 ------------
27 
 
28 
 Basic Memory Manager Functions:
29 
 
30 
**/
31 
 
32 
/*
33 
 * Copyright (C) 2000 Paolo Gai
34 
 *
35 
 * This program is free software; you can redistribute it and/or modify
36 
 * it under the terms of the GNU General Public License as published by
37 
 * the Free Software Foundation; either version 2 of the License, or
38 
 * (at your option) any later version.
39 
 *
40 
 * This program is distributed in the hope that it will be useful,
41 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
42 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
43 
 * GNU General Public License for more details.
44 
 *
45 
 * You should have received a copy of the GNU General Public License
46 
 * along with this program; if not, write to the Free Software
47 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
48 
 *
49 
 */
50 
 
51 
 
52 
#include <kernel/func.h>
53 
#include <kernel/lmm.h>
54 
 
55 
static lmm_t lmm;
56 
static lmm_region_t region1M;
57 
static lmm_region_t region16M;
58 
static lmm_region_t region;
59 
 
60 
void kern_mem_init(struct multiboot_info *multiboot)
61 
{
62 
  DWORD lowsize, highsize;
63 
  LIN_ADDR lowp, highp;
64 
 
65 
  X_meminfo(&highp, &highsize, &lowp, &lowsize);
66 
 
67 
  lmm_init(&lmm);
68 
 
69 
  /* Three memory regions:
70 
     - under 1Mb
71 
     - from 1Mb to 16Mb
72 
     - all the other memory...
73 
  */
74 
  lmm_add_region(&lmm, &region1M , (void*)0x00000000, 0x000FFFFF,
326 giacomo 75 
                                   MEMORY_UNDER_1M,       0);
2 pj 76 
  lmm_add_region(&lmm, &region16M, (void*)0x00100000, 0x00FFFFFF,
77 
                                   MEMORY_FROM_1M_TO_16M, 1);
78 
  lmm_add_region(&lmm, &region   , (void*)0x01000000, 0xFEFFFFFF,
79 
 
80 
 
81 
//  kern_printf("highsize:%d\n", highsize);
82 
  /* blocks of free memory */
83 
  if (lowsize)
84 
    lmm_add_free(&lmm, (void *)lowp, lowsize-1);
85 
  if (highsize)
326 giacomo 86 
    lmm_add_free(&lmm, (void *)highp+0x100000, highsize-0x100000);
2 pj 87 
}
88 
 
89 
void *kern_alloc(DWORD s)
90 
{
91 
  if (s==0) return NULL;
92 
  return lmm_alloc(&lmm, s, 0);
93 
}
94 
 
95 
void *kern_alloc_aligned(size_t size, lmm_flags_t flags,
96 
                        int align_bits, DWORD align_ofs)
97 
{
98 
  return lmm_alloc_aligned(&lmm, size, flags, align_bits, align_ofs);
99 
}
100 
 
101 
void *kern_alloc_page(lmm_flags_t flags)
102 
{
103 
  return lmm_alloc_page(&lmm, flags);
104 
}
105 
 
106 
void *kern_alloc_gen(size_t size, lmm_flags_t flags,
107 
                    int align_bits, DWORD align_ofs,
108 
                    DWORD bounds_min, DWORD bounds_max)
109 
{
110 
  return lmm_alloc_gen(&lmm, size, flags, align_bits, align_ofs,
111 
                       bounds_min, bounds_max);
112 
}
113 
 
114 
void kern_free(void *block, size_t size)
115 
{
116 
  lmm_free(&lmm, block, size);
117 
}
118 
 
119 
void kern_free_page(void *block)
120 
{
121 
  lmm_free_page(&lmm, block);
122 
}
123 
 
124 
void *DOS_alloc(DWORD size)
125 
{
126 
  return lmm_alloc(&lmm, size, MEMORY_UNDER_1M);
127 
}
128 
 
129 
void DOS_free(void *ptr,DWORD size)
130 
{
131 
  lmm_free(&lmm, ptr, size);
132 
}
133 
 
134 
 
135 
void kern_mem_dump(void)
136 
{
137 
  lmm_dump(&lmm);
138 
  lmm_stats(&lmm);
139 
}