1.\" 2.\" Copyright (c) 2003 Bruce M Simpson <bms@spc.org> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd July 21, 2003 27.Dt PMAP_OBJECT_INIT_PT 9 28.Os 29.Sh NAME 30.Nm pmap_object_init_pt 31.Nd initialize page tables for a VM object 32.Sh SYNOPSIS 33.In sys/param.h 34.In vm/vm.h 35.In vm/pmap.h 36.Ft void 37.Fo pmap_object_init_pt 38.Fa "pmap_t pmap" "vm_offset_t addr" "vm_object_t object" 39.Fa "vm_pindex_t pindex" "vm_size_t size" "int limit" 40.Fc 41.Sh DESCRIPTION 42The 43.Fn pmap_object_init_pt 44function preloads the page table entries into the specified physical map 45.Fa pmap , 46for the given 47.Fa object 48at the virtual address 49.Fa addr , 50for 51.Fa size 52bytes, beginning at the page index 53.Fa pindex 54within the object. 55The map bits 56.Fa limit 57are heeded when creating the mapping. 58.Sh IMPLEMENTATION NOTES 59This function is not strictly required by an architecture's 60.Xr pmap 9 61implementation, but it does provide performance benefits if implemented. 62.Pp 63It is intended to eliminate the blast of soft faults on process 64startup, and immediately following a call to 65.Xr mmap 2 . 66.Sh SEE ALSO 67.Xr pmap 9 , 68.Xr vm_map 9 69.Sh AUTHORS 70This manual page was written by 71.An Bruce M Simpson Aq Mt bms@spc.org . 72