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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/vm/_vm_phys.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2002-2006 Rice University

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 * Copyright (c) 2007 Alan L. Cox <[email protected]>

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 * All rights reserved.

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 *

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 * This software was developed for the FreeBSD Project by Alan L. Cox,

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 * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.

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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 COPYRIGHT HOLDERS AND CONTRIBUTORS

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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

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 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT

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 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

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 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS

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 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED

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 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY

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 * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

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 * POSSIBILITY OF SUCH DAMAGE.

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 */

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#ifndef	__VM_PHYS_H_

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#define	__VM_PHYS_H_

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#include <machine/vmparam.h>

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#ifndef VM_NFREEORDER_MAX

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#define	VM_NFREEORDER_MAX	VM_NFREEORDER

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#endif

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struct vm_page;

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#ifndef VM_PAGE_HAVE_PGLIST

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TAILQ_HEAD(pglist, vm_page);

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#define VM_PAGE_HAVE_PGLIST

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#endif

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struct vm_freelist {

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	struct pglist pl;

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	int lcnt;

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};

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struct vm_phys_seg {

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	vm_paddr_t	start;

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	vm_paddr_t	end;

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	vm_page_t	first_page;

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#if VM_NRESERVLEVEL > 0

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	vm_reserv_t	first_reserv;

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#endif

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#ifdef __aarch64__

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	void		*md_first;

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#endif

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	int		domain;

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	struct vm_freelist (*free_queues)[VM_NFREEPOOL][VM_NFREEORDER_MAX];

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};

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extern struct vm_phys_seg vm_phys_segs[];

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extern int vm_phys_nsegs;

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#endif /* !__VM_PHYS_H_ */

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