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- /*-
- * SPDX-License-Identifier: (BSD-3-Clause AND MIT-CMU)
- *
- * Copyright (c) 1991, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * Copyright (c) 1987, 1990 Carnegie-Mellon University.
- * All rights reserved.
- *
- * Authors: Avadis Tevanian, Jr., Michael Wayne Young
- *
- * Permission to use, copy, modify and distribute this software and
- * its documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
- * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie the
- * rights to redistribute these changes.
- */
- #ifndef VM_H
- #define VM_H
- #include <machine/vm.h>
- typedef char vm_inherit_t; /* inheritance codes */
- #define VM_INHERIT_SHARE ((vm_inherit_t) 0)
- #define VM_INHERIT_COPY ((vm_inherit_t) 1)
- #define VM_INHERIT_NONE ((vm_inherit_t) 2)
- #define VM_INHERIT_ZERO ((vm_inherit_t) 3)
- #define VM_INHERIT_DEFAULT VM_INHERIT_COPY
- typedef u_char vm_prot_t; /* protection codes */
- #define VM_PROT_NONE ((vm_prot_t) 0x00)
- #define VM_PROT_READ ((vm_prot_t) 0x01)
- #define VM_PROT_WRITE ((vm_prot_t) 0x02)
- #define VM_PROT_EXECUTE ((vm_prot_t) 0x04)
- #define VM_PROT_COPY ((vm_prot_t) 0x08) /* copy-on-read */
- #define VM_PROT_PRIV_FLAG ((vm_prot_t) 0x10)
- #define VM_PROT_FAULT_LOOKUP VM_PROT_PRIV_FLAG
- #define VM_PROT_NO_PROMOTE VM_PROT_PRIV_FLAG
- #define VM_PROT_QUICK_NOFAULT VM_PROT_PRIV_FLAG /* same to save bits */
- #define VM_PROT_ALL (VM_PROT_READ|VM_PROT_WRITE|VM_PROT_EXECUTE)
- #define VM_PROT_RW (VM_PROT_READ|VM_PROT_WRITE)
- #define VM_PROT_DEFAULT VM_PROT_ALL
- enum obj_type {
- OBJT_RESERVED = 0, /* was OBJT_DEFAULT */
- OBJT_SWAP,
- OBJT_DEFAULT = OBJT_SWAP,
- OBJT_VNODE,
- OBJT_DEVICE,
- OBJT_PHYS,
- OBJT_DEAD,
- OBJT_SG,
- OBJT_MGTDEVICE,
- OBJT_FIRST_DYN,
- };
- typedef u_char objtype_t;
- union vm_map_object;
- typedef union vm_map_object vm_map_object_t;
- struct vm_map_entry;
- typedef struct vm_map_entry *vm_map_entry_t;
- struct vm_map;
- typedef struct vm_map *vm_map_t;
- struct vm_object;
- typedef struct vm_object *vm_object_t;
- #ifndef _KERNEL
- /*
- * This is defined in <sys/types.h> for the kernel so that non-vm kernel
- * sources (mainly Mach-derived ones such as ddb) don't have to include
- * vm stuff. Defining it there for applications might break things.
- * Define it here for "applications" that include vm headers (e.g.,
- * genassym).
- */
- #ifndef HAVE_BOOLEAN
- typedef int boolean_t;
- #endif
- /*
- * The exact set of memory attributes is machine dependent. However,
- * every machine is required to define VM_MEMATTR_DEFAULT and
- * VM_MEMATTR_UNCACHEABLE.
- */
- typedef char vm_memattr_t; /* memory attribute codes */
- /*
- * This is defined in <sys/types.h> for the kernel so that vnode_if.h
- * doesn't have to include <vm/vm.h>.
- */
- struct vm_page;
- typedef struct vm_page *vm_page_t;
- #endif /* _KERNEL */
- struct vm_reserv;
- typedef struct vm_reserv *vm_reserv_t;
- /*
- * Information passed from the machine-independent VM initialization code
- * for use by machine-dependant code (mainly for MMU support)
- */
- struct kva_md_info {
- vm_offset_t buffer_sva;
- vm_offset_t buffer_eva;
- vm_offset_t clean_sva;
- vm_offset_t clean_eva;
- };
- /* bits from overcommit */
- #define SWAP_RESERVE_FORCE_ON (1 << 0)
- #define SWAP_RESERVE_RLIMIT_ON (1 << 1)
- #define SWAP_RESERVE_ALLOW_NONWIRED (1 << 2)
- #ifdef NUMA
- #define __numa_used
- #else
- #define __numa_used __unused
- #endif
- #ifdef _KERNEL
- struct ucred;
- void vm_ksubmap_init(struct kva_md_info *);
- bool swap_reserve(vm_ooffset_t incr);
- bool swap_reserve_by_cred(vm_ooffset_t incr, struct ucred *cred);
- void swap_reserve_force(vm_ooffset_t incr);
- void swap_release(vm_ooffset_t decr);
- void swap_release_by_cred(vm_ooffset_t decr, struct ucred *cred);
- void swapper(void);
- extern struct kva_md_info kmi;
- #define VA_IS_CLEANMAP(va) \
- ((va) >= kmi.clean_sva && (va) < kmi.clean_eva)
- extern int old_mlock;
- extern int vm_ndomains;
- extern int vm_overcommit;
- #endif /* _KERNEL */
- #endif /* VM_H */
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