osfmk/vm/vm_kern.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  */
  25 /*
  26  * Mach Operating System
  27  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  28  * All Rights Reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software and its
  31  * documentation is hereby granted, provided that both the copyright
  32  * notice and this permission notice appear in all copies of the
  33  * software, derivative works or modified versions, and any portions
  34  * thereof, and that both notices appear in supporting documentation.
  35  *
  36  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39  *
  40  * Carnegie Mellon requests users of this software to return to
  41  *
  42  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43  *  School of Computer Science
  44  *  Carnegie Mellon University
  45  *  Pittsburgh PA 15213-3890
  46  *
  47  * any improvements or extensions that they make and grant Carnegie Mellon
  48  * the rights to redistribute these changes.
  49  */
  50 /*
  51  */
  52 /*
  53  *      File:   vm/vm_kern.h
  54  *      Author: Avadis Tevanian, Jr., Michael Wayne Young
  55  *      Date:   1985
  56  *
  57  *      Kernel memory management definitions.
  58  */
  59
  60 #ifndef _VM_VM_KERN_H_
  61 #define _VM_VM_KERN_H_
  62
  63 #include <mach/boolean.h>
  64 #include <mach/kern_return.h>
  65 #include <mach/machine/vm_types.h>
  66 #include <vm/vm_map.h>
  67
  68 extern void             kmem_init(
  69                                 vm_offset_t     start,
  70                                 vm_offset_t     end);
  71
  72 extern kern_return_t    kernel_memory_allocate(
  73                                 vm_map_t        map,
  74                                 vm_offset_t     *addrp,
  75                                 vm_size_t       size,
  76                                 vm_offset_t     mask,
  77                                 int             flags);
  78
  79 /* flags for kernel_memory_allocate */
  80 #define KMA_HERE        0x01
  81 #define KMA_NOPAGEWAIT  0x02
  82 #define KMA_KOBJECT     0x04
  83
  84 extern kern_return_t kmem_alloc_contig(
  85                                 vm_map_t        map,
  86                                 vm_offset_t     *addrp,
  87                                 vm_size_t       size,
  88                                 vm_offset_t     mask,
  89                                 int             flags);
  90
  91 extern kern_return_t    kmem_alloc(
  92                                 vm_map_t        map,
  93                                 vm_offset_t     *addrp,
  94                                 vm_size_t       size);
  95
  96 extern kern_return_t    kmem_alloc_pageable(
  97                                 vm_map_t        map,
  98                                 vm_offset_t     *addrp,
  99                                 vm_size_t       size);
 100
 101 extern kern_return_t    kmem_alloc_wired(
 102                                 vm_map_t        map,
 103                                 vm_offset_t     *addrp,
 104                                 vm_size_t       size);
 105
 106 extern kern_return_t    kmem_alloc_aligned(
 107                                 vm_map_t        map,
 108                                 vm_offset_t     *addrp,
 109                                 vm_size_t       size);
 110
 111 extern kern_return_t    kmem_realloc(
 112                                 vm_map_t        map,
 113                                 vm_offset_t     oldaddr,
 114                                 vm_size_t       oldsize,
 115                                 vm_offset_t     *newaddrp,
 116                                 vm_size_t       newsize);
 117
 118 extern void             kmem_free(
 119                                 vm_map_t        map,
 120                                 vm_offset_t     addr,
 121                                 vm_size_t       size);
 122
 123 extern kern_return_t    kmem_suballoc(
 124                                 vm_map_t        parent,
 125                                 vm_offset_t     *addr,
 126                                 vm_size_t       size,
 127                                 boolean_t       pageable,
 128                                 boolean_t       anywhere,
 129                                 vm_map_t        *new_map);
 130
 131 extern void             kmem_io_object_deallocate(
 132                                 vm_map_copy_t   copy);
 133
 134 extern kern_return_t    kmem_io_object_trunc(
 135                                 vm_map_copy_t   copy,
 136                                 vm_size_t       new_size);
 137
 138 extern boolean_t        copyinmap(
 139                                 vm_map_t        map,
 140                                 vm_offset_t     fromaddr,
 141                                 vm_offset_t     toaddr,
 142                                 vm_size_t       length);
 143
 144 extern boolean_t        copyoutmap(
 145                                 vm_map_t        map,
 146                                 vm_offset_t     fromaddr,
 147                                 vm_offset_t     toaddr,
 148                                 vm_size_t       length);
 149
 150 extern vm_map_t kernel_map;
 151 extern vm_map_t kernel_pageable_map;
 152 extern vm_map_t ipc_kernel_map;
 153
 154 #endif  /* _VM_VM_KERN_H_ */