gnumach4linux-libre/vm/vm_kern.h

/*
 * Mach Operating System
 * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
 * All Rights Reserved.
 *
 * 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 Mellon
 * the rights to redistribute these changes.
 */
/*
 *	File:	vm/vm_kern.h
 *	Author:	Avadis Tevanian, Jr., Michael Wayne Young
 *	Date:	1985
 *
 *	Kernel memory management definitions.
 */

#ifndef	_VM_VM_KERN_H_
#define _VM_VM_KERN_H_

#include <mach/kern_return.h>
#include <vm/vm_map.h>

extern kern_return_t    projected_buffer_allocate(vm_map_t, vm_size_t, int,
						  vm_offset_t *, vm_offset_t *,
						  vm_prot_t, vm_inherit_t);
extern kern_return_t    projected_buffer_deallocate(vm_map_t, vm_offset_t,
						    vm_offset_t);
extern kern_return_t    projected_buffer_map(vm_map_t, vm_offset_t, vm_size_t,
					     vm_offset_t *, vm_prot_t,
					     vm_inherit_t);
extern kern_return_t    projected_buffer_collect(vm_map_t);

extern void		kmem_init(vm_offset_t, vm_offset_t);

extern kern_return_t	kmem_alloc(vm_map_t, vm_offset_t *, vm_size_t);
extern kern_return_t	kmem_alloc_pageable(vm_map_t, vm_offset_t *,
					    vm_size_t);
extern kern_return_t	kmem_alloc_wired(vm_map_t, vm_offset_t *, vm_size_t);
extern kern_return_t	kmem_alloc_aligned(vm_map_t, vm_offset_t *, vm_size_t);
extern void		kmem_free(vm_map_t, vm_offset_t, vm_size_t);

extern void		kmem_submap(vm_map_t, vm_map_t, vm_offset_t *,
				    vm_offset_t *, vm_size_t);

extern kern_return_t	kmem_io_map_copyout(vm_map_t, vm_offset_t *,
					    vm_offset_t *, vm_size_t *,
					    vm_map_copy_t, vm_size_t);
extern void		kmem_io_map_deallocate(vm_map_t, vm_offset_t,
					       vm_size_t);

extern int
copyinmap (vm_map_t map, char *fromaddr, char *toaddr, int length);

extern int
copyoutmap (vm_map_t map, char *fromaddr, char *toaddr, int length);

extern vm_map_t	kernel_map;
extern vm_map_t	kernel_pageable_map;
extern vm_map_t ipc_kernel_map;

extern boolean_t projected_buffer_in_range(
        vm_map_t map,
        vm_offset_t start,
		vm_offset_t end);

extern void kmem_alloc_pages(
	vm_object_t	object,
	vm_offset_t	offset,
	vm_offset_t	start,
	vm_offset_t	end,
	vm_prot_t	protection);

extern void kmem_remap_pages(
	vm_object_t	object,
	vm_offset_t	offset,
	vm_offset_t	start,
	vm_offset_t	end,
	vm_prot_t	protection);

#endif	/* _VM_VM_KERN_H_ */