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2 | pj | 1 | /* |
2 | * Project: S.Ha.R.K. |
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3 | * |
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4 | * Coordinators: |
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5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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6 | * Paolo Gai <pj@gandalf.sssup.it> |
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7 | * |
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8 | * Authors : |
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9 | * Paolo Gai <pj@gandalf.sssup.it> |
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10 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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11 | * Luca Abeni <luca@gandalf.sssup.it> |
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12 | * (see the web pages for full authors list) |
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13 | * |
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14 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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15 | * |
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16 | * http://www.sssup.it |
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17 | * http://retis.sssup.it |
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18 | * http://shark.sssup.it |
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19 | */ |
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20 | |||
21 | |||
22 | /** |
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23 | ------------ |
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24 | CVS : $Id: mem.h,v 1.1.1.1 2002-03-29 14:12:51 pj Exp $ |
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25 | |||
26 | File: $File$ |
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27 | Revision: $Revision: 1.1.1.1 $ |
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28 | Last update: $Date: 2002-03-29 14:12:51 $ |
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29 | ------------ |
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30 | |||
31 | - Memory Management functions |
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32 | |||
33 | **/ |
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34 | |||
35 | /* |
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36 | * Copyright (C) 2000 Paolo Gai |
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37 | * |
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38 | * This program is free software; you can redistribute it and/or modify |
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39 | * it under the terms of the GNU General Public License as published by |
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40 | * the Free Software Foundation; either version 2 of the License, or |
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41 | * (at your option) any later version. |
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42 | * |
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43 | * This program is distributed in the hope that it will be useful, |
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44 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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45 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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46 | * GNU General Public License for more details. |
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47 | * |
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48 | * You should have received a copy of the GNU General Public License |
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49 | * along with this program; if not, write to the Free Software |
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50 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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51 | * |
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52 | */ |
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53 | |||
54 | /*---------------------------------------------------------------------*/ |
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55 | /* Memory Management */ |
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56 | /*---------------------------------------------------------------------*/ |
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57 | |||
58 | #ifndef __KERNEL_MEM_H__ |
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59 | #define __KERNEL_MEM_H__ |
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60 | |||
61 | #include <kernel/lmm.h> |
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62 | |||
63 | /* Memory regions to be passed as flags... */ |
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64 | #define MEMORY_UNDER_1M 1 |
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65 | #define MEMORY_FROM_1M_TO_16M 2 |
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66 | #define MEMORY_UNDER_16M 3 |
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67 | |||
68 | /* init the memory allocator */ |
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69 | void kern_mem_init(struct multiboot_info *multiboot); |
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70 | |||
71 | /* alloc memory without requirements on the address... */ |
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72 | void *kern_alloc(DWORD s); |
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73 | |||
74 | /* alloc an aligned block of memory */ |
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75 | void *kern_alloc_aligned(size_t size, lmm_flags_t flags, |
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76 | int align_bits, DWORD align_ofs); |
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77 | |||
78 | /* alloc memory with general constraints */ |
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79 | void *kern_alloc_gen(size_t size, lmm_flags_t flags, |
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80 | int align_bits, DWORD align_ofs, |
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81 | DWORD bounds_min, DWORD bounds_max); |
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82 | |||
83 | /* free a block */ |
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84 | void kern_free(void *block, size_t size); |
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85 | |||
86 | /* alloc and free a page */ |
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87 | void *kern_alloc_page(lmm_flags_t flags); |
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88 | void kern_free_page(void *block); |
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89 | |||
90 | /* alloc and free memory <1Mb */ |
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91 | void *DOS_alloc(DWORD size); |
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92 | void DOS_free(void *ptr,DWORD size); |
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93 | |||
94 | /* statistical stuffs */ |
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95 | void kern_mem_dump(void); |
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96 | |||
97 | |||
98 | #endif |