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/* $NetBSD: uvm_extern.h,v 1.194 2015/03/20 15:41:43 riastradh Exp $ */
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/*
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* Copyright (c) 1997 Charles D. Cranor and Washington University.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* from: Id: uvm_extern.h,v 1.1.2.21 1998/02/07 01:16:53 chs Exp
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*/
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/*-
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* Copyright (c) 1991, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)vm_extern.h 8.5 (Berkeley) 5/3/95
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*/
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#ifndef _UVM_UVM_EXTERN_H_
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#define _UVM_UVM_EXTERN_H_
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/*
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* uvm_extern.h: this file defines the external interface to the VM system.
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*
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* this should be the only file included by non-VM parts of the kernel
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* which need access to VM services. if you want to know the interface
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* to the MI VM layer without knowing the details, this is the file to
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* learn.
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*
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* NOTE: vm system calls are prototyped in syscallargs.h
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*/
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/*
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* defines
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*/
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/*
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* the following defines are for uvm_map and functions which call it.
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*/
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/* protections bits */
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#define UVM_PROT_MASK 0x07 /* protection mask */ |
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#define UVM_PROT_NONE 0x00 /* protection none */ |
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#define UVM_PROT_ALL 0x07 /* everything */ |
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#define UVM_PROT_READ 0x01 /* read */ |
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#define UVM_PROT_WRITE 0x02 /* write */ |
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#define UVM_PROT_EXEC 0x04 /* exec */ |
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/* protection short codes */
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#define UVM_PROT_R 0x01 /* read */ |
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#define UVM_PROT_W 0x02 /* write */ |
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#define UVM_PROT_RW 0x03 /* read-write */ |
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#define UVM_PROT_X 0x04 /* exec */ |
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#define UVM_PROT_RX 0x05 /* read-exec */ |
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#define UVM_PROT_WX 0x06 /* write-exec */ |
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#define UVM_PROT_RWX 0x07 /* read-write-exec */ |
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/* 0x08: not used */
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/* inherit codes */
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#define UVM_INH_MASK 0x30 /* inherit mask */ |
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#define UVM_INH_SHARE 0x00 /* "share" */ |
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#define UVM_INH_COPY 0x10 /* "copy" */ |
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#define UVM_INH_NONE 0x20 /* "none" */ |
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#define UVM_INH_DONATE 0x30 /* "donate" << not used */ |
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/* 0x40, 0x80: not used */
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/* bits 0x700: max protection, 0x800: not used */
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/* bits 0x7000: advice, 0x8000: not used */
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/* advice: matches MADV_* from sys/mman.h and POSIX_FADV_* from sys/fcntl.h */
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#define UVM_ADV_NORMAL 0x0 /* 'normal' */ |
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#define UVM_ADV_RANDOM 0x1 /* 'random' */ |
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#define UVM_ADV_SEQUENTIAL 0x2 /* 'sequential' */ |
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#define UVM_ADV_WILLNEED 0x3 /* pages will be needed */ |
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#define UVM_ADV_DONTNEED 0x4 /* pages won't be needed */ |
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#define UVM_ADV_NOREUSE 0x5 /* pages will be used only once */ |
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#define UVM_ADV_MASK 0x7 /* mask */ |
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/* bits 0xffff0000: mapping flags */
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#define UVM_FLAG_FIXED 0x010000 /* find space */ |
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#define UVM_FLAG_OVERLAY 0x020000 /* establish overlay */ |
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#define UVM_FLAG_NOMERGE 0x040000 /* don't merge map entries */ |
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#define UVM_FLAG_COPYONW 0x080000 /* set copy_on_write flag */ |
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#define UVM_FLAG_AMAPPAD 0x100000 /* for bss: pad amap to reduce allocations */ |
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#define UVM_FLAG_TRYLOCK 0x200000 /* fail if we can not lock map */ |
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#define UVM_FLAG_NOWAIT 0x400000 /* not allowed to sleep */ |
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#define UVM_FLAG_WAITVA 0x800000 /* wait for va */ |
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#define UVM_FLAG_VAONLY 0x2000000 /* unmap: no pages are mapped */ |
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#define UVM_FLAG_COLORMATCH 0x4000000 /* match color given in off */ |
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/* macros to extract info */
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#define UVM_PROTECTION(X) ((X) & UVM_PROT_MASK)
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#define UVM_INHERIT(X) (((X) & UVM_INH_MASK) >> 4) |
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#define UVM_MAXPROTECTION(X) (((X) >> 8) & UVM_PROT_MASK) |
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#define UVM_ADVICE(X) (((X) >> 12) & UVM_ADV_MASK) |
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#define UVM_MAPFLAG(PROT,MAXPROT,INH,ADVICE,FLAGS) \
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(((MAXPROT) << 8)|(PROT)|(INH)|((ADVICE) << 12)|(FLAGS)) |
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/* magic offset value: offset not known(obj) or don't care(!obj) */
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#define UVM_UNKNOWN_OFFSET ((voff_t) -1) |
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/*
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* the following defines are for uvm_km_alloc/free's flags
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*/
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#define UVM_KMF_WIRED 0x1 /* allocation type: wired */ |
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#define UVM_KMF_PAGEABLE 0x2 /* allocation type: pageable */ |
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#define UVM_KMF_VAONLY 0x4 /* allocation type: VA only */ |
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#define UVM_KMF_TYPEMASK (UVM_KMF_VAONLY | UVM_KMF_PAGEABLE | UVM_KMF_WIRED)
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#define UVM_KMF_CANFAIL 0x8 /* caller handles failure */ |
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#define UVM_KMF_ZERO 0x10 /* want zero filled memory */ |
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#define UVM_KMF_EXEC 0x20 /* need executable mapping */ |
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#define UVM_KMF_TRYLOCK UVM_FLAG_TRYLOCK /* try locking only */ |
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#define UVM_KMF_NOWAIT UVM_FLAG_NOWAIT /* not allowed to sleep */ |
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#define UVM_KMF_WAITVA UVM_FLAG_WAITVA /* sleep for va */ |
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#define UVM_KMF_COLORMATCH UVM_FLAG_COLORMATCH /* start at color in align */ |
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/*
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* the following defines the strategies for uvm_pagealloc_strat()
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*/
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#define UVM_PGA_STRAT_NORMAL 0 /* priority (low id to high) walk */ |
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#define UVM_PGA_STRAT_ONLY 1 /* only specified free list */ |
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#define UVM_PGA_STRAT_FALLBACK 2 /* ONLY falls back on NORMAL */ |
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/*
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* flags for uvm_pagealloc_strat()
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*/
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#define UVM_PGA_USERESERVE 0x0001 /* ok to use reserve pages */ |
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#define UVM_PGA_ZERO 0x0002 /* returned page must be zero'd */ |
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/*
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* flags for ubc_alloc()
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*/
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#define UBC_READ 0x001 /* reading from object */ |
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#define UBC_WRITE 0x002 /* writing to object */ |
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#define UBC_FAULTBUSY 0x004 /* nobody else is using these pages, so busy |
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* them at alloc and unbusy at release (e.g.,
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* for writes extending a file) */
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/*
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* flags for ubc_release()
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*/
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#define UBC_UNMAP 0x010 /* unmap pages now -- don't leave the |
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* mappings cached indefinitely */
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/*
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* flags for ubc_uiomove()
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*/
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#define UBC_PARTIALOK 0x100 /* return early on error; otherwise, zero all |
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* remaining bytes after error */
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/*
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* flags for uvn_findpages().
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*/
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#define UFP_ALL 0x00 |
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#define UFP_NOWAIT 0x01 |
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#define UFP_NOALLOC 0x02 |
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#define UFP_NOCACHE 0x04 |
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#define UFP_NORDONLY 0x08 |
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#define UFP_DIRTYONLY 0x10 |
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#define UFP_BACKWARD 0x20 |
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/*
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* lockflags that control the locking behavior of various functions.
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*/
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#define UVM_LK_ENTER 0x00000001 /* map locked on entry */ |
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#define UVM_LK_EXIT 0x00000002 /* leave map locked on exit */ |
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/*
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* Default number of pages to allocate on the stack
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*/
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#define UBC_MAX_PAGES 8 |
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/*
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* Value representing inactive emap.
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*/
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#define UVM_EMAP_INACTIVE (0) |
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/*
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* structures
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*/
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struct buf;
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struct core;
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struct loadavg;
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struct mount;
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struct pglist;
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struct proc;
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struct uio;
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struct uvm_object;
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struct vm_anon;
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struct vmspace;
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struct pmap;
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struct vnode;
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struct vm_map_entry;
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struct vm_map;
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struct vm_page;
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struct vmtotal;
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/*
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* uvm_pctparam: parameter to be shown as percentage to user.
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*/
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#define UVM_PCTPARAM_SHIFT 8 |
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#define UVM_PCTPARAM_SCALE (1 << UVM_PCTPARAM_SHIFT) |
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#define UVM_PCTPARAM_APPLY(pct, x) \
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(((x) * (pct)->pct_scaled) >> UVM_PCTPARAM_SHIFT) |
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struct uvm_pctparam {
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int pct_pct; /* percent [0, 100] */ /* should be the first member */ |
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int pct_scaled;
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int (*pct_check)(struct uvm_pctparam *, int); |
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}; |
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/*
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* uvmexp: global data structures that are exported to parts of the kernel
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* other than the vm system.
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*/
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struct uvmexp {
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/* vm_page constants */
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int pagesize; /* size of a page (PAGE_SIZE): must be power of 2 */ |
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int pagemask; /* page mask */ |
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int pageshift; /* page shift */ |
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/* vm_page counters */
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int npages; /* number of pages we manage */ |
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int free; /* number of free pages */ |
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int paging; /* number of pages in the process of being paged out */ |
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int wired; /* number of wired pages */ |
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/*
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* Adding anything before this line will break binary compatibility
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* with top(1) on NetBSD 1.5.
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*/
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int ncolors; /* number of page color buckets: must be p-o-2 */ |
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int colormask; /* color bucket mask */ |
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int zeropages; /* number of zero'd pages */ |
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int reserve_pagedaemon; /* number of pages reserved for pagedaemon */ |
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int reserve_kernel; /* number of pages reserved for kernel */ |
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unsigned anonpages; /* number of pages used by anon mappings */ |
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unsigned filepages; /* number of pages used by cached file data */ |
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unsigned execpages; /* number of pages used by cached exec data */ |
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/* pageout params */
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int freemin; /* min number of free pages */ |
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int freetarg; /* target number of free pages */ |
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int wiredmax; /* max number of wired pages */ |
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/* swap */
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int nswapdev; /* number of configured swap devices in system */ |
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int swpages; /* number of PAGE_SIZE'ed swap pages */ |
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int swpgavail; /* number of swap pages currently available */ |
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int swpginuse; /* number of swap pages in use */ |
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int swpgonly; /* number of swap pages in use, not also in RAM */ |
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int nswget; /* number of times fault calls uvm_swap_get() */ |
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/* stat counters. XXX: should be 64-bit counters */
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int _unused_faults; /* page fault count */ |
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int _unused_traps; /* trap count */ |
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int _unused_intrs; /* interrupt count */ |
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int _unused_swtch; /* context switch count */ |
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int _unused_softs; /* software interrupt count */ |
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int _unused_syscalls; /* system calls */ |
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int pageins; /* pagein operation count */ |
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/* pageouts are in pdpageouts below */
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int _unused1;
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int _unused2;
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int pgswapin; /* pages swapped in */ |
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int pgswapout; /* pages swapped out */ |
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int forks; /* forks */ |
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int forks_ppwait; /* forks where parent waits */ |
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int forks_sharevm; /* forks where vmspace is shared */ |
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int pga_zerohit; /* pagealloc where zero wanted and zero |
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was available */
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int pga_zeromiss; /* pagealloc where zero wanted and zero |
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not available */
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int zeroaborts; /* number of times page zeroing was |
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aborted */
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int colorhit; /* pagealloc where we got optimal color */ |
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int colormiss; /* pagealloc where we didn't */ |
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int cpuhit; /* pagealloc where we allocated locally */ |
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int cpumiss; /* pagealloc where we didn't */ |
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/* fault subcounters. XXX: should be 64-bit counters */
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int fltnoram; /* number of times fault was out of ram */ |
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int fltnoanon; /* number of times fault was out of anons */ |
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int fltpgwait; /* number of times fault had to wait on a page */ |
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int fltpgrele; /* number of times fault found a released page */ |
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int fltrelck; /* number of times fault relock called */ |
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int fltrelckok; /* number of times fault relock is a success */ |
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int fltanget; /* number of times fault gets anon page */ |
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int fltanretry; /* number of times fault retrys an anon get */ |
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int fltamcopy; /* number of times fault clears "needs copy" */ |
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int fltnamap; /* number of times fault maps a neighbor anon page */ |
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int fltnomap; /* number of times fault maps a neighbor obj page */ |
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int fltlget; /* number of times fault does a locked pgo_get */ |
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int fltget; /* number of times fault does an unlocked get */ |
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int flt_anon; /* number of times fault anon (case 1a) */ |
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int flt_acow; /* number of times fault anon cow (case 1b) */ |
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int flt_obj; /* number of times fault is on object page (2a) */ |
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int flt_prcopy; /* number of times fault promotes with copy (2b) */ |
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int flt_przero; /* number of times fault promotes with zerofill (2b) */ |
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/* daemon counters. XXX: should be 64-bit counters */
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int pdwoke; /* number of times daemon woke up */ |
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int pdrevs; /* number of times daemon rev'd clock hand */ |
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int _unused3;
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int pdfreed; /* number of pages daemon freed since boot */ |
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int pdscans; /* number of pages daemon scanned since boot */ |
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int pdanscan; /* number of anonymous pages scanned by daemon */ |
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int pdobscan; /* number of object pages scanned by daemon */ |
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int pdreact; /* number of pages daemon reactivated since boot */ |
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int pdbusy; /* number of times daemon found a busy page */ |
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int pdpageouts; /* number of times daemon started a pageout */ |
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int pdpending; /* number of times daemon got a pending pagout */ |
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int pddeact; /* number of pages daemon deactivates */ |
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int pdreanon; /* anon pages reactivated due to thresholds */ |
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int pdrefile; /* file pages reactivated due to thresholds */ |
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int pdreexec; /* executable pages reactivated due to thresholds */ |
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}; |
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/*
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* The following structure is 64-bit alignment safe. New elements
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* should only be added to the end of this structure so binary
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* compatibility can be preserved.
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*/
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struct uvmexp_sysctl {
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int64_t pagesize; |
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int64_t pagemask; |
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int64_t pageshift; |
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int64_t npages; |
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int64_t free; |
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int64_t active; |
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int64_t inactive; |
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int64_t paging; |
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int64_t wired; |
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int64_t zeropages; |
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int64_t reserve_pagedaemon; |
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int64_t reserve_kernel; |
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int64_t freemin; |
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int64_t freetarg; |
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int64_t inactarg; /* unused */
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int64_t wiredmax; |
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int64_t nswapdev; |
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int64_t swpages; |
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int64_t swpginuse; |
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int64_t swpgonly; |
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int64_t nswget; |
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int64_t unused1; /* unused; was nanon */
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int64_t cpuhit; |
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int64_t cpumiss; |
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int64_t faults; |
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int64_t traps; |
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int64_t intrs; |
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int64_t swtch; |
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int64_t softs; |
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int64_t syscalls; |
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int64_t pageins; |
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int64_t swapins; /* unused */
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int64_t swapouts; /* unused */
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int64_t pgswapin; |
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int64_t pgswapout; |
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int64_t forks; |
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int64_t forks_ppwait; |
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int64_t forks_sharevm; |
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int64_t pga_zerohit; |
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int64_t pga_zeromiss; |
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int64_t zeroaborts; |
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int64_t fltnoram; |
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int64_t fltnoanon; |
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int64_t fltpgwait; |
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int64_t fltpgrele; |
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int64_t fltrelck; |
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int64_t fltrelckok; |
| 421 |
int64_t fltanget; |
| 422 |
int64_t fltanretry; |
| 423 |
int64_t fltamcopy; |
| 424 |
int64_t fltnamap; |
| 425 |
int64_t fltnomap; |
| 426 |
int64_t fltlget; |
| 427 |
int64_t fltget; |
| 428 |
int64_t flt_anon; |
| 429 |
int64_t flt_acow; |
| 430 |
int64_t flt_obj; |
| 431 |
int64_t flt_prcopy; |
| 432 |
int64_t flt_przero; |
| 433 |
int64_t pdwoke; |
| 434 |
int64_t pdrevs; |
| 435 |
int64_t unused4; |
| 436 |
int64_t pdfreed; |
| 437 |
int64_t pdscans; |
| 438 |
int64_t pdanscan; |
| 439 |
int64_t pdobscan; |
| 440 |
int64_t pdreact; |
| 441 |
int64_t pdbusy; |
| 442 |
int64_t pdpageouts; |
| 443 |
int64_t pdpending; |
| 444 |
int64_t pddeact; |
| 445 |
int64_t anonpages; |
| 446 |
int64_t filepages; |
| 447 |
int64_t execpages; |
| 448 |
int64_t colorhit; |
| 449 |
int64_t colormiss; |
| 450 |
int64_t ncolors; |
| 451 |
}; |
| 452 |
|
| 453 |
#ifdef _KERNEL
|
| 454 |
/* we need this before including uvm_page.h on some platforms */
|
| 455 |
extern struct uvmexp uvmexp; |
| 456 |
/* MD code needs this without including <uvm/uvm.h> */
|
| 457 |
extern bool vm_page_zero_enable; |
| 458 |
#endif
|
| 459 |
|
| 460 |
/*
|
| 461 |
* Finally, bring in standard UVM headers.
|
| 462 |
*/
|
| 463 |
#include <sys/vmmeter.h> |
| 464 |
#include <sys/queue.h> |
| 465 |
#include <sys/lock.h> |
| 466 |
#ifdef _KERNEL
|
| 467 |
#include <sys/vmem.h> |
| 468 |
#endif
|
| 469 |
#include <uvm/uvm_param.h> |
| 470 |
#include <uvm/uvm_prot.h> |
| 471 |
#include <uvm/uvm_pmap.h> |
| 472 |
#include <uvm/uvm_map.h> |
| 473 |
#include <uvm/uvm_pager.h> |
| 474 |
|
| 475 |
/*
|
| 476 |
* helpers for calling ubc_release()
|
| 477 |
*/
|
| 478 |
#ifdef PMAP_CACHE_VIVT
|
| 479 |
#define UBC_WANT_UNMAP(vp) (((vp)->v_iflag & VI_TEXT) != 0) |
| 480 |
#else
|
| 481 |
#define UBC_WANT_UNMAP(vp) false |
| 482 |
#endif
|
| 483 |
#define UBC_UNMAP_FLAG(vp) (UBC_WANT_UNMAP(vp) ? UBC_UNMAP : 0) |
| 484 |
|
| 485 |
/*
|
| 486 |
* Shareable process virtual address space.
|
| 487 |
* May eventually be merged with vm_map.
|
| 488 |
* Several fields are temporary (text, data stuff).
|
| 489 |
*/
|
| 490 |
struct vmspace {
|
| 491 |
struct vm_map vm_map; /* VM address map */ |
| 492 |
int vm_refcnt; /* number of references * |
| 493 |
* note: protected by vm_map.ref_lock */
|
| 494 |
void * vm_shm; /* SYS5 shared memory private data XXX */ |
| 495 |
/* we copy from vm_startcopy to the end of the structure on fork */
|
| 496 |
#define vm_startcopy vm_rssize
|
| 497 |
segsz_t vm_rssize; /* current resident set size in pages */
|
| 498 |
segsz_t vm_swrss; /* resident set size before last swap */
|
| 499 |
segsz_t vm_tsize; /* text size (pages) XXX */
|
| 500 |
segsz_t vm_dsize; /* data size (pages) XXX */
|
| 501 |
segsz_t vm_ssize; /* stack size (pages) */
|
| 502 |
segsz_t vm_issize; /* initial unmapped stack size (pages) */
|
| 503 |
void * vm_taddr; /* user virtual address of text XXX */ |
| 504 |
void * vm_daddr; /* user virtual address of data XXX */ |
| 505 |
void *vm_maxsaddr; /* user VA at max stack growth */ |
| 506 |
void *vm_minsaddr; /* user VA at top of stack */ |
| 507 |
size_t vm_aslr_delta_mmap; /* mmap() random delta for ASLR */
|
| 508 |
}; |
| 509 |
#define VMSPACE_IS_KERNEL_P(vm) VM_MAP_IS_KERNEL(&(vm)->vm_map)
|
| 510 |
|
| 511 |
#ifdef _KERNEL
|
| 512 |
|
| 513 |
/*
|
| 514 |
* used to keep state while iterating over the map for a core dump.
|
| 515 |
*/
|
| 516 |
struct uvm_coredump_state {
|
| 517 |
void *cookie; /* opaque for the caller */ |
| 518 |
vaddr_t start; /* start of region */
|
| 519 |
vaddr_t realend; /* real end of region */
|
| 520 |
vaddr_t end; /* virtual end of region */
|
| 521 |
vm_prot_t prot; /* protection of region */
|
| 522 |
int flags; /* flags; see below */ |
| 523 |
}; |
| 524 |
|
| 525 |
#define UVM_COREDUMP_STACK 0x01 /* region is user stack */ |
| 526 |
|
| 527 |
/*
|
| 528 |
* the various kernel maps, owned by MD code
|
| 529 |
*/
|
| 530 |
extern struct vm_map *kernel_map; |
| 531 |
extern struct vm_map *phys_map; |
| 532 |
|
| 533 |
/*
|
| 534 |
* macros
|
| 535 |
*/
|
| 536 |
|
| 537 |
#define vm_resident_count(vm) (pmap_resident_count((vm)->vm_map.pmap))
|
| 538 |
|
| 539 |
|
| 540 |
/* vm_machdep.c */
|
| 541 |
int vmapbuf(struct buf *, vsize_t); |
| 542 |
void vunmapbuf(struct buf *, vsize_t); |
| 543 |
|
| 544 |
/* uvm_aobj.c */
|
| 545 |
struct uvm_object *uao_create(vsize_t, int); |
| 546 |
void uao_set_pgfl(struct uvm_object *, int); |
| 547 |
void uao_detach(struct uvm_object *); |
| 548 |
void uao_reference(struct uvm_object *); |
| 549 |
|
| 550 |
/* uvm_bio.c */
|
| 551 |
void ubc_init(void); |
| 552 |
void ubchist_init(void); |
| 553 |
void * ubc_alloc(struct uvm_object *, voff_t, vsize_t *, int, |
| 554 |
int);
|
| 555 |
void ubc_release(void *, int); |
| 556 |
int ubc_uiomove(struct uvm_object *, struct uio *, vsize_t, |
| 557 |
int, int); |
| 558 |
void ubc_zerorange(struct uvm_object *, off_t, size_t, int); |
| 559 |
void ubc_purge(struct uvm_object *); |
| 560 |
|
| 561 |
/* uvm_emap.c */
|
| 562 |
void uvm_emap_sysinit(void); |
| 563 |
#ifdef __HAVE_PMAP_EMAP
|
| 564 |
void uvm_emap_switch(lwp_t *);
|
| 565 |
#else
|
| 566 |
#define uvm_emap_switch(l)
|
| 567 |
#endif
|
| 568 |
|
| 569 |
u_int uvm_emap_gen_return(void);
|
| 570 |
void uvm_emap_update(u_int);
|
| 571 |
|
| 572 |
vaddr_t uvm_emap_alloc(vsize_t, bool);
|
| 573 |
void uvm_emap_free(vaddr_t, size_t);
|
| 574 |
|
| 575 |
void uvm_emap_enter(vaddr_t, struct vm_page **, u_int); |
| 576 |
void uvm_emap_remove(vaddr_t, vsize_t);
|
| 577 |
|
| 578 |
#ifdef __HAVE_PMAP_EMAP
|
| 579 |
void uvm_emap_consume(u_int);
|
| 580 |
u_int uvm_emap_produce(void);
|
| 581 |
#else
|
| 582 |
#define uvm_emap_consume(x)
|
| 583 |
#define uvm_emap_produce() UVM_EMAP_INACTIVE
|
| 584 |
#endif
|
| 585 |
|
| 586 |
/* uvm_fault.c */
|
| 587 |
#define uvm_fault(m, a, p) uvm_fault_internal(m, a, p, 0) |
| 588 |
int uvm_fault_internal(struct vm_map *, vaddr_t, vm_prot_t, int); |
| 589 |
/* handle a page fault */
|
| 590 |
|
| 591 |
/* uvm_glue.c */
|
| 592 |
#if defined(KGDB)
|
| 593 |
void uvm_chgkprot(void *, size_t, int); |
| 594 |
#endif
|
| 595 |
void uvm_proc_fork(struct proc *, struct proc *, bool); |
| 596 |
void uvm_lwp_fork(struct lwp *, struct lwp *, |
| 597 |
void *, size_t, void (*)(void *), void *); |
| 598 |
int uvm_coredump_walkmap(struct proc *, |
| 599 |
int (*)(struct uvm_coredump_state *), void *); |
| 600 |
int uvm_coredump_count_segs(struct proc *); |
| 601 |
void uvm_proc_exit(struct proc *); |
| 602 |
void uvm_lwp_exit(struct lwp *); |
| 603 |
void uvm_init_limits(struct proc *); |
| 604 |
bool uvm_kernacc(void *, size_t, vm_prot_t); |
| 605 |
__dead void uvm_scheduler(void); |
| 606 |
vaddr_t uvm_uarea_alloc(void);
|
| 607 |
void uvm_uarea_free(vaddr_t);
|
| 608 |
vaddr_t uvm_uarea_system_alloc(struct cpu_info *);
|
| 609 |
void uvm_uarea_system_free(vaddr_t);
|
| 610 |
vaddr_t uvm_lwp_getuarea(lwp_t *); |
| 611 |
void uvm_lwp_setuarea(lwp_t *, vaddr_t);
|
| 612 |
int uvm_vslock(struct vmspace *, void *, size_t, vm_prot_t); |
| 613 |
void uvm_vsunlock(struct vmspace *, void *, size_t); |
| 614 |
void uvm_cpu_attach(struct cpu_info *); |
| 615 |
|
| 616 |
|
| 617 |
/* uvm_init.c */
|
| 618 |
void uvm_init(void); |
| 619 |
|
| 620 |
/* uvm_io.c */
|
| 621 |
int uvm_io(struct vm_map *, struct uio *); |
| 622 |
|
| 623 |
/* uvm_km.c */
|
| 624 |
vaddr_t uvm_km_alloc(struct vm_map *, vsize_t, vsize_t,
|
| 625 |
uvm_flag_t); |
| 626 |
void uvm_km_free(struct vm_map *, vaddr_t, vsize_t, |
| 627 |
uvm_flag_t); |
| 628 |
|
| 629 |
struct vm_map *uvm_km_suballoc(struct vm_map *, vaddr_t *, |
| 630 |
vaddr_t *, vsize_t, int, bool, |
| 631 |
struct vm_map *);
|
| 632 |
#ifdef _KERNEL
|
| 633 |
int uvm_km_kmem_alloc(vmem_t *, vmem_size_t, vm_flag_t,
|
| 634 |
vmem_addr_t *); |
| 635 |
void uvm_km_kmem_free(vmem_t *, vmem_addr_t, vmem_size_t);
|
| 636 |
bool uvm_km_va_starved_p(void); |
| 637 |
#endif
|
| 638 |
|
| 639 |
/* uvm_map.c */
|
| 640 |
int uvm_map(struct vm_map *, vaddr_t *, vsize_t, |
| 641 |
struct uvm_object *, voff_t, vsize_t,
|
| 642 |
uvm_flag_t); |
| 643 |
int uvm_map_pageable(struct vm_map *, vaddr_t, |
| 644 |
vaddr_t, bool, int); |
| 645 |
int uvm_map_pageable_all(struct vm_map *, int, vsize_t); |
| 646 |
bool uvm_map_checkprot(struct vm_map *, vaddr_t, |
| 647 |
vaddr_t, vm_prot_t); |
| 648 |
int uvm_map_protect(struct vm_map *, vaddr_t, |
| 649 |
vaddr_t, vm_prot_t, bool);
|
| 650 |
struct vmspace *uvmspace_alloc(vaddr_t, vaddr_t, bool); |
| 651 |
void uvmspace_init(struct vmspace *, struct pmap *, |
| 652 |
vaddr_t, vaddr_t, bool);
|
| 653 |
void uvmspace_exec(struct lwp *, vaddr_t, vaddr_t, bool); |
| 654 |
void uvmspace_spawn(struct lwp *, vaddr_t, vaddr_t, bool); |
| 655 |
struct vmspace *uvmspace_fork(struct vmspace *); |
| 656 |
void uvmspace_addref(struct vmspace *); |
| 657 |
void uvmspace_free(struct vmspace *); |
| 658 |
void uvmspace_share(struct proc *, struct proc *); |
| 659 |
void uvmspace_unshare(struct lwp *); |
| 660 |
|
| 661 |
void uvm_whatis(uintptr_t, void (*)(const char *, ...)); |
| 662 |
|
| 663 |
/* uvm_meter.c */
|
| 664 |
int uvm_sysctl(int *, u_int, void *, size_t *, |
| 665 |
void *, size_t, struct proc *); |
| 666 |
int uvm_pctparam_check(struct uvm_pctparam *, int); |
| 667 |
void uvm_pctparam_set(struct uvm_pctparam *, int); |
| 668 |
int uvm_pctparam_get(struct uvm_pctparam *); |
| 669 |
void uvm_pctparam_init(struct uvm_pctparam *, int, |
| 670 |
int (*)(struct uvm_pctparam *, int)); |
| 671 |
int uvm_pctparam_createsysctlnode(struct uvm_pctparam *, |
| 672 |
const char *, const char *); |
| 673 |
|
| 674 |
/* uvm_mmap.c */
|
| 675 |
int uvm_mmap_dev(struct proc *, void **, size_t, dev_t, |
| 676 |
off_t); |
| 677 |
int uvm_mmap_anon(struct proc *, void **, size_t); |
| 678 |
vaddr_t uvm_default_mapaddr(struct proc *, vaddr_t, vsize_t);
|
| 679 |
|
| 680 |
/* uvm_mremap.c */
|
| 681 |
int uvm_mremap(struct vm_map *, vaddr_t, vsize_t, |
| 682 |
struct vm_map *, vaddr_t *, vsize_t,
|
| 683 |
struct proc *, int); |
| 684 |
|
| 685 |
/* uvm_object.c */
|
| 686 |
void uvm_obj_init(struct uvm_object *, |
| 687 |
const struct uvm_pagerops *, bool, u_int); |
| 688 |
void uvm_obj_setlock(struct uvm_object *, kmutex_t *); |
| 689 |
void uvm_obj_destroy(struct uvm_object *, bool); |
| 690 |
int uvm_obj_wirepages(struct uvm_object *, off_t, off_t, |
| 691 |
struct pglist *);
|
| 692 |
void uvm_obj_unwirepages(struct uvm_object *, off_t, off_t); |
| 693 |
|
| 694 |
/* uvm_page.c */
|
| 695 |
struct vm_page *uvm_pagealloc_strat(struct uvm_object *, |
| 696 |
voff_t, struct vm_anon *, int, int, int); |
| 697 |
#define uvm_pagealloc(obj, off, anon, flags) \
|
| 698 |
uvm_pagealloc_strat((obj), (off), (anon), (flags), \ |
| 699 |
UVM_PGA_STRAT_NORMAL, 0)
|
| 700 |
void uvm_pagereplace(struct vm_page *, |
| 701 |
struct vm_page *);
|
| 702 |
void uvm_pagerealloc(struct vm_page *, |
| 703 |
struct uvm_object *, voff_t);
|
| 704 |
/* Actually, uvm_page_physload takes PF#s which need their own type */
|
| 705 |
void uvm_page_physload(paddr_t, paddr_t, paddr_t,
|
| 706 |
paddr_t, int);
|
| 707 |
void uvm_setpagesize(void); |
| 708 |
|
| 709 |
/* uvm_pager.c */
|
| 710 |
void uvm_aio_biodone(struct buf *); |
| 711 |
void uvm_aio_aiodone(struct buf *); |
| 712 |
void uvm_aio_aiodone_pages(struct vm_page **, int, bool, |
| 713 |
int);
|
| 714 |
|
| 715 |
/* uvm_pdaemon.c */
|
| 716 |
void uvm_pageout(void *); |
| 717 |
struct work;
|
| 718 |
void uvm_aiodone_worker(struct work *, void *); |
| 719 |
void uvm_pageout_start(int); |
| 720 |
void uvm_pageout_done(int); |
| 721 |
void uvm_estimatepageable(int *, int *); |
| 722 |
|
| 723 |
/* uvm_pglist.c */
|
| 724 |
int uvm_pglistalloc(psize_t, paddr_t, paddr_t,
|
| 725 |
paddr_t, paddr_t, struct pglist *, int, int); |
| 726 |
void uvm_pglistfree(struct pglist *); |
| 727 |
|
| 728 |
/* uvm_swap.c */
|
| 729 |
void uvm_swap_init(void); |
| 730 |
|
| 731 |
/* uvm_unix.c */
|
| 732 |
int uvm_grow(struct proc *, vaddr_t); |
| 733 |
|
| 734 |
/* uvm_user.c */
|
| 735 |
void uvm_deallocate(struct vm_map *, vaddr_t, vsize_t); |
| 736 |
|
| 737 |
/* uvm_vnode.c */
|
| 738 |
void uvm_vnp_setsize(struct vnode *, voff_t); |
| 739 |
void uvm_vnp_setwritesize(struct vnode *, voff_t); |
| 740 |
int uvn_findpages(struct uvm_object *, voff_t, |
| 741 |
int *, struct vm_page **, int); |
| 742 |
bool uvn_text_p(struct uvm_object *); |
| 743 |
bool uvn_clean_p(struct uvm_object *); |
| 744 |
bool uvn_needs_writefault_p(struct uvm_object *); |
| 745 |
|
| 746 |
/* kern_malloc.c */
|
| 747 |
void kmeminit_nkmempages(void); |
| 748 |
extern int nkmempages; |
| 749 |
|
| 750 |
#endif /* _KERNEL */ |
| 751 |
|
| 752 |
#endif /* _UVM_UVM_EXTERN_H_ */ |