Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/vm/vm_kern.h
Version:
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1993,1991,1990,1989,1988,1987 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie Mellon 24 * the rights to redistribute these changes. 25 */ 26 /* 27 * HISTORY 28 * $Log: vm_kern.h,v $ 29 * Revision 2.11 93/11/17 18:54:40 dbg 30 * Conditionalized projected buffer support under NET_ATM. 31 * [93/09/10 dbg] 32 * Added ANSI function prototypes. 33 * [93/06/16 dbg] 34 * 35 * Revision 2.10 93/08/10 15:12:46 mrt 36 * Included support for projected buffers. 37 * [93/02/16 09:30:12 jcb] 38 * 39 * Revision 2.9 91/08/28 11:18:05 jsb 40 * Delete io_wire, io_unwire. 41 * [91/08/06 17:18:36 dlb] 42 * 43 * Add declarations for kmem_io_map_{copyout,deallocate}. 44 * [91/08/05 17:46:55 dlb] 45 * 46 * Revision 2.8 91/05/18 14:40:39 rpd 47 * Added kmem_alloc_aligned. 48 * [91/05/02 rpd] 49 * 50 * Revision 2.7 91/05/14 17:49:27 mrt 51 * Correcting copyright 52 * 53 * Revision 2.6 91/03/16 15:05:31 rpd 54 * Added kmem_realloc. Changed kmem_alloc and friends 55 * to return a kern_return_t. 56 * [91/03/03 rpd] 57 * 58 * Revision 2.5 91/02/05 17:58:31 mrt 59 * Changed to new Mach copyright 60 * [91/02/01 16:32:28 mrt] 61 * 62 * Revision 2.4 90/06/02 15:10:51 rpd 63 * Added ipc_kernel_map. 64 * [90/03/26 23:13:05 rpd] 65 * 66 * Revision 2.3 90/02/22 20:05:46 dbg 67 * Remove vm_move(), kmem_alloc_wait(), kmem_free_wakeup(). 68 * [90/01/25 dbg] 69 * 70 * Revision 2.2 90/01/11 11:47:53 dbg 71 * Remove kmem_mb_alloc, mb_map. Add io_wire and io_unwire. 72 * [89/12/11 dbg] 73 * 74 * Changes for MACH_KERNEL: 75 * . Added kmem_alloc_wired. 76 * . Removed non-MACH header files, user_pt_map, vm_kern_zero_page. 77 * [89/04/28 dbg] 78 * 79 * Revision 2.1 89/08/03 16:45:13 rwd 80 * Created. 81 * 82 * Revision 2.8 89/04/18 21:25:51 mwyoung 83 * No relevant history. 84 * [89/04/18 mwyoung] 85 * 86 */ 87 /* 88 * File: vm/vm_kern.h 89 * Author: Avadis Tevanian, Jr., Michael Wayne Young 90 * Date: 1985 91 * 92 * Kernel memory management definitions. 93 */ 94 95 #ifndef _VM_VM_KERN_H_ 96 #define _VM_VM_KERN_H_ 97 98 #include <net_atm.h> 99 100 #include <mach/kern_return.h> 101 #include <vm/vm_map.h> 102 103 #if NET_ATM 104 extern kern_return_t projected_buffer_allocate( 105 vm_map_t map, 106 vm_size_t size, 107 int persistence, 108 vm_offset_t *kernel_p, 109 vm_offset_t *user_p, 110 vm_prot_t protection, 111 vm_inherit_t inheritance); /*Currently only VM_INHERIT_NONE supported*/ 112 extern kern_return_t projected_buffer_deallocate( 113 vm_map_t map, 114 vm_offset_t start, 115 vm_offset_t end); 116 extern kern_return_t projected_buffer_map( 117 vm_map_t map, 118 vm_offset_t kernel_addr, 119 vm_size_t size, 120 vm_offset_t *user_p, 121 vm_prot_t protection, 122 vm_inherit_t inheritance); /*Currently only VM_INHERIT_NONE supported*/ 123 extern kern_return_t projected_buffer_collect( 124 vm_map_t map); 125 #endif /* NET_ATM */ 126 127 extern void kmem_init( 128 vm_offset_t start, 129 vm_offset_t end); 130 131 extern kern_return_t kmem_alloc( 132 vm_map_t map, 133 vm_offset_t *addrp, 134 vm_size_t size); 135 extern kern_return_t kmem_alloc_pageable( 136 vm_map_t map, 137 vm_offset_t *addrp, 138 vm_size_t size); 139 extern kern_return_t kmem_alloc_wired( 140 vm_map_t map, 141 vm_offset_t *addrp, 142 vm_size_t size); 143 extern kern_return_t kmem_alloc_aligned( 144 vm_map_t map, 145 vm_offset_t *addrp, 146 vm_size_t size); 147 extern kern_return_t kmem_realloc( 148 vm_map_t map, 149 vm_offset_t oldaddr, 150 vm_size_t oldsize, 151 vm_offset_t *newaddrp, 152 vm_size_t newsize); 153 extern void kmem_free( 154 vm_map_t map, 155 vm_offset_t addr, 156 vm_size_t size); 157 158 extern vm_map_t kmem_suballoc( 159 vm_map_t parent, 160 vm_offset_t *min, 161 vm_offset_t *max, 162 vm_size_t size, 163 boolean_t pageable); 164 165 extern kern_return_t kmem_io_map_copyout( 166 vm_map_t map, 167 vm_offset_t *addr, 168 vm_offset_t *alloc_addr, 169 vm_size_t *alloc_size, 170 vm_map_copy_t copy, 171 vm_size_t min_size); 172 173 extern void kmem_io_map_deallocate( 174 vm_map_t map, 175 vm_offset_t addr, 176 vm_size_t size); 177 178 extern vm_map_t kernel_map; 179 extern vm_map_t kernel_pageable_map; 180 extern vm_map_t ipc_kernel_map; 181 182 #endif /* _VM_VM_KERN_H_ */
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