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/arm/include/pmap.h

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    1 /*-
    2  * Copyright (c) 2016 Svatopluk Kraus
    3  * Copyright (c) 2016 Michal Meloun
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/11.0/sys/arm/include/pmap.h 300694 2016-05-25 19:44:26Z ian $
   28  */
   29 
   30 #ifndef _MACHINE_PMAP_H_
   31 #define _MACHINE_PMAP_H_
   32 
   33 #if __ARM_ARCH >= 6
   34 #include <machine/pmap-v6.h>
   35 #else
   36 #include <machine/pmap-v4.h>
   37 #endif
   38 
   39 #ifdef _KERNEL
   40 
   41 extern vm_paddr_t dump_avail[];
   42 extern vm_paddr_t phys_avail[];
   43 
   44 extern char *_tmppt;    /* poor name! */
   45 
   46 extern vm_offset_t virtual_avail;
   47 extern vm_offset_t virtual_end;
   48 
   49 void *pmap_kenter_temporary(vm_paddr_t, int);
   50 #define pmap_page_is_write_mapped(m)    (((m)->aflags & PGA_WRITEABLE) != 0)
   51 void pmap_page_set_memattr(vm_page_t, vm_memattr_t);
   52 
   53 void *pmap_mapdev(vm_paddr_t, vm_size_t);
   54 void pmap_unmapdev(vm_offset_t, vm_size_t);
   55 
   56 struct pcb;
   57 void pmap_set_pcb_pagedir(pmap_t, struct pcb *);
   58 
   59 void pmap_kenter_device(vm_offset_t, vm_size_t, vm_paddr_t);
   60 void pmap_kremove_device(vm_offset_t, vm_size_t);
   61 
   62 vm_paddr_t pmap_kextract(vm_offset_t);
   63 #define vtophys(va)     pmap_kextract((vm_offset_t)(va))
   64 
   65 #endif  /* _KERNEL */
   66 #endif  /* !_MACHINE_PMAP_H_ */

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