The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/vm/vm_phys.h

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    1 /*-
    2  * Copyright (c) 2002-2006 Rice University
    3  * Copyright (c) 2007 Alan L. Cox <alc@cs.rice.edu>
    4  * All rights reserved.
    5  *
    6  * This software was developed for the FreeBSD Project by Alan L. Cox,
    7  * Olivier Crameri, Peter Druschel, Sitaram Iyer, and Juan Navarro.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   21  * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
   22  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   23  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
   24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
   25  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
   26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
   28  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   29  * POSSIBILITY OF SUCH DAMAGE.
   30  *
   31  * $FreeBSD: releng/8.2/sys/vm/vm_phys.h 215938 2010-11-27 12:26:40Z jchandra $
   32  */
   33 
   34 /*
   35  *      Physical memory system definitions
   36  */
   37 
   38 #ifndef _VM_PHYS_H_
   39 #define _VM_PHYS_H_
   40 
   41 #ifdef _KERNEL
   42 
   43 void vm_phys_add_page(vm_paddr_t pa);
   44 vm_page_t vm_phys_alloc_contig(unsigned long npages,
   45     vm_paddr_t low, vm_paddr_t high,
   46     unsigned long alignment, unsigned long boundary);
   47 vm_page_t vm_phys_alloc_freelist_pages(int flind, int pool, int order);
   48 vm_page_t vm_phys_alloc_pages(int pool, int order);
   49 vm_paddr_t vm_phys_bootstrap_alloc(vm_size_t size, unsigned long alignment);
   50 void vm_phys_free_pages(vm_page_t m, int order);
   51 void vm_phys_init(void);
   52 void vm_phys_set_pool(int pool, vm_page_t m, int order);
   53 boolean_t vm_phys_unfree_page(vm_page_t m);
   54 boolean_t vm_phys_zero_pages_idle(void);
   55 
   56 #endif  /* _KERNEL */
   57 #endif  /* !_VM_PHYS_H_ */

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