83f108b04d
to the machine-independent parts of the VM. At the same time, this introduces vm object locking for the non-i386 platforms. Two details: 1. KSTACK_GUARD has been removed in favor of KSTACK_GUARD_PAGES. The different machine-dependent implementations used various combinations of KSTACK_GUARD and KSTACK_GUARD_PAGES. To disable guard page, set KSTACK_GUARD_PAGES to 0. 2. Remove the (unnecessary) clearing of PG_ZERO in vm_thread_new. In 5.x, (but not 4.x,) PG_ZERO can only be set if VM_ALLOC_ZERO is passed to vm_page_alloc() or vm_page_grab().
107 lines
4.6 KiB
C
107 lines
4.6 KiB
C
/*-
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* Copyright (c) 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. 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 8.2 (Berkeley) 1/12/94
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* $FreeBSD$
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*/
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#ifndef _VM_EXTERN_H_
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#define _VM_EXTERN_H_
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struct buf;
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struct proc;
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struct vmspace;
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struct vmtotal;
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struct mount;
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struct vnode;
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#ifdef _KERNEL
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#ifdef TYPEDEF_FOR_UAP
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int getpagesize(struct thread *, void *, int *);
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int madvise(struct thread *, void *, int *);
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int mincore(struct thread *, void *, int *);
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int mprotect(struct thread *, void *, int *);
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int msync(struct thread *, void *, int *);
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int munmap(struct thread *, void *, int *);
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int obreak(struct thread *, void *, int *);
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int sbrk(struct thread *, void *, int *);
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int sstk(struct thread *, void *, int *);
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int swapon(struct thread *, void *, int *);
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#endif /* TYPEDEF_FOR_UAP */
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int kernacc(void *, int, int);
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vm_offset_t kmem_alloc(vm_map_t, vm_size_t);
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vm_offset_t kmem_alloc_nofault(vm_map_t, vm_size_t);
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vm_offset_t kmem_alloc_pageable(vm_map_t, vm_size_t);
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vm_offset_t kmem_alloc_wait(vm_map_t, vm_size_t);
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void kmem_free(vm_map_t, vm_offset_t, vm_size_t);
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void kmem_free_wakeup(vm_map_t, vm_offset_t, vm_size_t);
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void kmem_init(vm_offset_t, vm_offset_t);
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vm_offset_t kmem_malloc(vm_map_t, vm_size_t, boolean_t);
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vm_map_t kmem_suballoc(vm_map_t, vm_offset_t *, vm_offset_t *, vm_size_t);
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void munmapfd(struct thread *, int);
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int swaponvp(struct thread *, struct vnode *, dev_t , u_long);
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void swapout_procs(int);
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int useracc(void *, int, int);
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int vm_fault(vm_map_t, vm_offset_t, vm_prot_t, int);
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void vm_fault_copy_entry(vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t);
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void vm_fault_unwire(vm_map_t, vm_offset_t, vm_offset_t);
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int vm_fault_wire(vm_map_t, vm_offset_t, vm_offset_t, boolean_t);
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void vm_forkproc(struct thread *, struct proc *, struct thread *, int);
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void vm_waitproc(struct proc *);
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int vm_mmap(vm_map_t, vm_offset_t *, vm_size_t, vm_prot_t, vm_prot_t, int, void *, vm_ooffset_t);
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vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_paddr_t, vm_paddr_t, vm_offset_t);
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void vm_set_page_size(void);
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struct vmspace *vmspace_alloc(vm_offset_t, vm_offset_t);
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struct vmspace *vmspace_fork(struct vmspace *);
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void vmspace_exec(struct proc *, vm_offset_t, vm_offset_t);
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void vmspace_unshare(struct proc *);
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void vmspace_free(struct vmspace *);
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void vmspace_exitfree(struct proc *);
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void vnode_pager_setsize(struct vnode *, vm_ooffset_t);
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void vslock(void *, u_int);
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void vsunlock(void *, u_int);
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void vm_object_print(/* db_expr_t */ long, boolean_t, /* db_expr_t */ long,
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char *);
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int vm_fault_quick(caddr_t v, int prot);
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void vm_proc_new(struct proc *p);
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void vm_proc_dispose(struct proc *p);
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void vm_thread_dispose(struct thread *td);
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void vm_thread_dispose_altkstack(struct thread *td);
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void vm_thread_new(struct thread *td, int pages);
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void vm_thread_new_altkstack(struct thread *td, int pages);
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void vm_thread_swapin(struct thread *td);
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void vm_thread_swapout(struct thread *td);
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#endif /* _KERNEL */
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#endif /* !_VM_EXTERN_H_ */
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