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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 |