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Diffstat (limited to 'sys/vm/vm.h')
| -rw-r--r-- | sys/vm/vm.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/vm/vm.h b/sys/vm/vm.h new file mode 100644 index 000000000000..ac04bd7092b0 --- /dev/null +++ b/sys/vm/vm.h @@ -0,0 +1,75 @@ +/* + * Copyright (c) 1991 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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. + * + * from: @(#)vm.h 7.1 (Berkeley) 5/5/91 + * $Id: vm.h,v 1.2 1993/10/16 16:20:22 rgrimes Exp $ + */ + +#ifndef VM_H +#define VM_H +#include <vm/vm_param.h> +#include <vm/lock.h> +#include <vm/queue.h> +#include <vm/vm_prot.h> +#include <vm/vm_inherit.h> +#include <vm/vm_map.h> +#include <vm/vm_object.h> +#include <vm/vm_statistics.h> +#include <vm/pmap.h> + +/* + * Shareable process virtual address space. + * May eventually be merged with vm_map. + * Several fields are temporary (text, data stuff). + */ +struct vmspace { + struct vm_map vm_map; /* VM address map */ + struct pmap vm_pmap; /* private physical map */ + int vm_refcnt; /* number of references */ + caddr_t vm_shm; /* SYS5 shared memory private data XXX */ +/* we copy from vm_startcopy to the end of the structure on fork */ +#define vm_startcopy vm_rssize + segsz_t vm_rssize; /* current resident set size in pages */ + segsz_t vm_swrss; /* resident set size before last swap */ + segsz_t vm_tsize; /* text size (pages) XXX */ + segsz_t vm_dsize; /* data size (pages) XXX */ + segsz_t vm_ssize; /* stack size (pages) */ + caddr_t vm_taddr; /* user virtual address of text XXX */ + caddr_t vm_daddr; /* user virtual address of data XXX */ + caddr_t vm_maxsaddr; /* user VA at max stack growth */ +}; + +struct vmspace *vmspace_alloc __P((vm_offset_t min, vm_offset_t max, + int pageable)); +struct vmspace *vmspace_fork __P((struct vmspace *)); +void vmspace_free __P((struct vmspace *)); +#endif /* VM_H */ |