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Annotation of src/sys/uvm/uvm_map.h, Revision 1.17

1.17    ! simonb      1: /*     $NetBSD: uvm_map.h,v 1.16 2000/03/26 20:54:47 kleink Exp $      */
1.1       mrg         2:
                      3: /*
                      4:  * Copyright (c) 1997 Charles D. Cranor and Washington University.
                      5:  * Copyright (c) 1991, 1993, The Regents of the University of California.
                      6:  *
                      7:  * All rights reserved.
                      8:  *
                      9:  * This code is derived from software contributed to Berkeley by
                     10:  * The Mach Operating System project at Carnegie-Mellon University.
                     11:  *
                     12:  * Redistribution and use in source and binary forms, with or without
                     13:  * modification, are permitted provided that the following conditions
                     14:  * are met:
                     15:  * 1. Redistributions of source code must retain the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer.
                     17:  * 2. Redistributions in binary form must reproduce the above copyright
                     18:  *    notice, this list of conditions and the following disclaimer in the
                     19:  *    documentation and/or other materials provided with the distribution.
                     20:  * 3. All advertising materials mentioning features or use of this software
                     21:  *    must display the following acknowledgement:
                     22:  *     This product includes software developed by Charles D. Cranor,
                     23:  *      Washington University, the University of California, Berkeley and
                     24:  *      its contributors.
                     25:  * 4. Neither the name of the University nor the names of its contributors
                     26:  *    may be used to endorse or promote products derived from this software
                     27:  *    without specific prior written permission.
                     28:  *
                     29:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     30:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     31:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     32:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     33:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     34:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     35:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     36:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     37:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     38:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     39:  * SUCH DAMAGE.
                     40:  *
                     41:  *     @(#)vm_map.h    8.3 (Berkeley) 3/15/94
1.4       mrg        42:  * from: Id: uvm_map.h,v 1.1.2.3 1998/02/07 01:16:55 chs Exp
1.1       mrg        43:  *
                     44:  *
                     45:  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
                     46:  * All rights reserved.
                     47:  *
                     48:  * Permission to use, copy, modify and distribute this software and
                     49:  * its documentation is hereby granted, provided that both the copyright
                     50:  * notice and this permission notice appear in all copies of the
                     51:  * software, derivative works or modified versions, and any portions
                     52:  * thereof, and that both notices appear in supporting documentation.
                     53:  *
                     54:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
                     55:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
                     56:  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
                     57:  *
                     58:  * Carnegie Mellon requests users of this software to return to
                     59:  *
                     60:  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
                     61:  *  School of Computer Science
                     62:  *  Carnegie Mellon University
                     63:  *  Pittsburgh PA 15213-3890
                     64:  *
                     65:  * any improvements or extensions that they make and grant Carnegie the
                     66:  * rights to redistribute these changes.
                     67:  */
                     68:
1.5       perry      69: #ifndef _UVM_UVM_MAP_H_
                     70: #define _UVM_UVM_MAP_H_
                     71:
1.1       mrg        72: /*
                     73:  * uvm_map.h
                     74:  */
                     75:
1.15      thorpej    76: #ifdef _KERNEL
                     77:
1.1       mrg        78: /*
                     79:  * macros
                     80:  */
                     81:
                     82: /*
                     83:  * UVM_MAP_CLIP_START: ensure that the entry begins at or after
                     84:  * the starting address, if it doesn't we split the entry.
                     85:  *
                     86:  * => map must be locked by caller
                     87:  */
                     88:
                     89: #define UVM_MAP_CLIP_START(MAP,ENTRY,VA) { \
                     90:        if ((VA) > (ENTRY)->start) uvm_map_clip_start(MAP,ENTRY,VA); }
                     91:
                     92: /*
                     93:  * UVM_MAP_CLIP_END: ensure that the entry ends at or before
                     94:  *      the ending address, if it does't we split the entry.
                     95:  *
                     96:  * => map must be locked by caller
                     97:  */
                     98:
                     99: #define UVM_MAP_CLIP_END(MAP,ENTRY,VA) { \
                    100:        if ((VA) < (ENTRY)->end) uvm_map_clip_end(MAP,ENTRY,VA); }
                    101:
                    102: /*
                    103:  * extract flags
                    104:  */
                    105: #define UVM_EXTRACT_REMOVE     0x1     /* remove mapping from old map */
                    106: #define UVM_EXTRACT_CONTIG     0x2     /* try to keep it contig */
                    107: #define UVM_EXTRACT_QREF       0x4     /* use quick refs */
                    108: #define UVM_EXTRACT_FIXPROT    0x8     /* set prot to maxprot as we go */
                    109:
                    110:
                    111: /*
                    112:  * handle inline options
                    113:  */
                    114:
                    115: #ifdef UVM_MAP_INLINE
                    116: #define MAP_INLINE static __inline
                    117: #else
                    118: #define MAP_INLINE /* nothing */
                    119: #endif /* UVM_MAP_INLINE */
1.12      thorpej   120:
                    121: /*
                    122:  * globals:
                    123:  */
                    124:
                    125: #ifdef PMAP_GROWKERNEL
                    126: extern vaddr_t uvm_maxkaddr;
                    127: #endif
1.1       mrg       128:
                    129: /*
                    130:  * protos: the following prototypes define the interface to vm_map
                    131:  */
                    132:
                    133: MAP_INLINE
                    134: void           uvm_map_deallocate __P((vm_map_t));
                    135:
1.7       eeh       136: int            uvm_map_clean __P((vm_map_t, vaddr_t, vaddr_t, int));
1.16      kleink    137: void           uvm_map_clip_start __P((vm_map_t, vm_map_entry_t, vaddr_t));
                    138: void           uvm_map_clip_end __P((vm_map_t, vm_map_entry_t, vaddr_t));
1.1       mrg       139: MAP_INLINE
1.16      kleink    140: vm_map_t       uvm_map_create __P((pmap_t, vaddr_t, vaddr_t, int));
1.7       eeh       141: int            uvm_map_extract __P((vm_map_t, vaddr_t, vsize_t,
                    142:                        vm_map_t, vaddr_t *, int));
1.16      kleink    143: vm_map_entry_t uvm_map_findspace __P((vm_map_t, vaddr_t, vsize_t, vaddr_t *,
                    144:                        struct uvm_object *, voff_t, boolean_t));
                    145: int            uvm_map_inherit __P((vm_map_t, vaddr_t, vaddr_t, vm_inherit_t));
1.13      mrg       146: int            uvm_map_advice __P((vm_map_t, vaddr_t, vaddr_t, int));
1.1       mrg       147: void           uvm_map_init __P((void));
1.16      kleink    148: boolean_t      uvm_map_lookup_entry __P((vm_map_t, vaddr_t, vm_map_entry_t *));
1.1       mrg       149: MAP_INLINE
                    150: void           uvm_map_reference __P((vm_map_t));
1.16      kleink    151: int            uvm_map_replace __P((vm_map_t, vaddr_t, vaddr_t,
1.1       mrg       152:                        vm_map_entry_t, int));
1.16      kleink    153: int            uvm_map_reserve __P((vm_map_t, vsize_t, vaddr_t, vaddr_t *));
                    154: void           uvm_map_setup __P((vm_map_t, vaddr_t, vaddr_t, int));
                    155: int            uvm_map_submap __P((vm_map_t, vaddr_t, vaddr_t, vm_map_t));
1.1       mrg       156: MAP_INLINE
1.10      chuck     157: int            uvm_unmap __P((vm_map_t, vaddr_t, vaddr_t));
1.1       mrg       158: void           uvm_unmap_detach __P((vm_map_entry_t,int));
1.7       eeh       159: int            uvm_unmap_remove __P((vm_map_t, vaddr_t, vaddr_t,
1.10      chuck     160:                                      vm_map_entry_t *));
1.15      thorpej   161:
                    162: #endif /* _KERNEL */
1.5       perry     163:
                    164: #endif /* _UVM_UVM_MAP_H_ */

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