# paging.h

    00001 /**************************************************************************************
    00002  Copyright (c) 2002 The UbixOS Project
    00003  All rights reserved.
    00004
    00005 Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
    00006
    00007 Redistributions of source code must retain the above copyright notice, this list of conditions, the following disclaimer and the list of authors.
    00008 Redistributions in binary form must reproduce the above copyright notice, this list of conditions, the following disclaimer and the list of authors
    00009 in the documentation and/or other materials provided with the distribution. Neither the name of the UbixOS Project nor the names of its
    00010 contributors may be used to endorse or promote products derived from this software without specific prior written permission.
    00011
    00012 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
    00013 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    00014 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
    00015 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
    00016 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
    00017 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    00018 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00019
    00020  $Id$
    00021
    00022 **************************************************************************************/
    00023
    00024 #ifndef _PAGING_H
    00025 #define _PAGING_H
    00026
    00027 #include <ubixos/types.h>
    00028
    00029 #define pageLength        0x00000400
    00030 #define pageSize          4096
    00031 #define pageEntries       (pageSize/4)
    00032 #define pagePresent       0x00000001
    00033 #define pageWrite         0x00000002
    00034 #define pageUser          0x00000004
    00035 #define pageCow           0x00000200
    00036 #define pageStack         0x00000400
    00037 #define pageDefault       (pagePresent|pageWrite|pageUser)
    00038 #define kernelPageDefault (pagePresent|pageWrite)
    00039 #define tablesBaseAddress 0xBFC00000
    00040 #define parentPageDirAddr 0x100000
    00041
    00042 int vmmPagingInit();
    00043 int vmmClearVirtualPage(uInt32 pageAddr);
    00044 int vmmRemapPage(uInt32,uInt32);
    00045 void vmmUnmapPage(uInt32,int);
    00046 void vmmUnmapPages(void *,uInt32);
    00047 void vmmSetPageAttribute(uInt32,int);
    00048 void *vmmMapFromTask(pidType,void *,uInt32);
    00049 void *vmmCopyVirtualSpace(pidType);
    00050 void *vmmGetFreePage(pidType);
    00051 void *vmmGetFreeKernelPage(pidType pid,uInt16 count);
    00052 void *vmmGetPhysicalAddr(uInt32);
    00053 void *vmmCreateVirtualSpace(pidType);
    00054 void *vmmGetFreeVirtualPage(pidType,int);
    00055 void vmmPageFault();
    00056 void _vmmPageFault();
    00057
    00058 extern uInt32 *kernelPageDirectory;
    00059
    00060 #endif
    00061