ReactOS Development > Doxygen

00001 /*++ NDK Version: 0095
00002 
00003 Copyright (c) Alex Ionescu.  All rights reserved.
00004 
00005 Header Name:
00006 
00007     mmtypes.h (X86)
00008 
00009 Abstract:
00010 
00011     i386 Type definitions for the Memory Manager
00012 
00013 Author:
00014 
00015     Alex Ionescu (alex.ionescu@reactos.com)   06-Oct-2004
00016 
00017 --*/
00018 
00019 #ifndef _I386_MMTYPES_H
00020 #define _I386_MMTYPES_H
00021 
00022 //
00023 // Dependencies
00024 //
00025 
00026 //
00027 // Page-related Macros
00028 //
00029 #define PAGE_SIZE                         0x1000
00030 #define PAGE_SHIFT                        12L
00031 #define MM_ALLOCATION_GRANULARITY         0x10000
00032 #define MM_ALLOCATION_GRANULARITY_SHIFT   16L
00033 
00034 //
00035 // Address of the shared user page
00036 //
00037 #define MM_SHARED_USER_DATA_VA 0x7FFE0000
00038 
00039 //
00040 // Sanity checks for Paging Macros
00041 //
00042 #ifdef C_ASSERT
00043 C_ASSERT(PAGE_SIZE == (1 << PAGE_SHIFT));
00044 C_ASSERT(MM_ALLOCATION_GRANULARITY == (1 << MM_ALLOCATION_GRANULARITY_SHIFT));
00045 C_ASSERT(MM_ALLOCATION_GRANULARITY &&
00046          !(MM_ALLOCATION_GRANULARITY & (MM_ALLOCATION_GRANULARITY - 1)));
00047 C_ASSERT(MM_ALLOCATION_GRANULARITY >= PAGE_SIZE);
00048 #endif
00049 
00050 //
00051 // PAE SEG0 Base?
00052 //
00053 #define KSEG0_BASE_PAE                    0xE0000000
00054 
00055 //
00056 // Page Table Entry Definitions
00057 //
00058 typedef struct _HARDWARE_PTE_X86
00059 {
00060     ULONG Valid:1;
00061     ULONG Write:1;
00062     ULONG Owner:1;
00063     ULONG WriteThrough:1;
00064     ULONG CacheDisable:1;
00065     ULONG Accessed:1;
00066     ULONG Dirty:1;
00067     ULONG LargePage:1;
00068     ULONG Global:1;
00069     ULONG CopyOnWrite:1;
00070     ULONG Prototype: 1;
00071     ULONG reserved: 1;
00072     ULONG PageFrameNumber:20;
00073 } HARDWARE_PTE_X86, *PHARDWARE_PTE_X86;
00074 
00075 typedef struct _MMPTE_SOFTWARE
00076 {
00077     ULONG Valid:1;
00078     ULONG PageFileLow:4;
00079     ULONG Protection:5;
00080     ULONG Prototype:1;
00081     ULONG Transition:1;
00082     ULONG PageFileHigh:20;
00083 } MMPTE_SOFTWARE;
00084 
00085 typedef struct _MMPTE_TRANSITION
00086 {
00087     ULONG Valid:1;
00088     ULONG Write:1;
00089     ULONG Owner:1;
00090     ULONG WriteThrough:1;
00091     ULONG CacheDisable:1;
00092     ULONG Protection:5;
00093     ULONG Prototype:1;
00094     ULONG Transition:1;
00095     ULONG PageFrameNumber:20;
00096 } MMPTE_TRANSITION;
00097 
00098 typedef struct _MMPTE_PROTOTYPE
00099 {
00100     ULONG Valid:1;
00101     ULONG ProtoAddressLow:7;
00102     ULONG ReadOnly:1;
00103     ULONG WhichPool:1;
00104     ULONG Prototype:1;
00105     ULONG ProtoAddressHigh:21;
00106 } MMPTE_PROTOTYPE;
00107 
00108 typedef struct _MMPTE_SUBSECTION
00109 {
00110     ULONG Valid:1;
00111     ULONG SubsectionAddressLow:4;
00112     ULONG Protection:5;
00113     ULONG Prototype:1;
00114     ULONG SubsectionAddressHigh:20;
00115     ULONG WhichPool:1;
00116 } MMPTE_SUBSECTION;
00117 
00118 typedef struct _MMPTE_LIST
00119 {
00120     ULONG Valid:1;
00121     ULONG OneEntry:1;
00122     ULONG filler0:8;
00123     ULONG Prototype:1;
00124     ULONG filler1:1;
00125     ULONG NextEntry:20;
00126 } MMPTE_LIST;
00127 
00128 #ifndef CONFIG_SMP
00129 
00130 typedef struct _MMPTE_HARDWARE
00131 {
00132     ULONG Valid:1;
00133     ULONG Write:1;
00134     ULONG Owner:1;
00135     ULONG WriteThrough:1;
00136     ULONG CacheDisable:1;
00137     ULONG Accessed:1;
00138     ULONG Dirty:1;
00139     ULONG LargePage:1;
00140     ULONG Global:1;
00141     ULONG CopyOnWrite:1;
00142     ULONG Prototype:1;
00143     ULONG reserved:1;
00144     ULONG PageFrameNumber:20;
00145 } MMPTE_HARDWARE, *PMMPTE_HARDWARE;
00146 
00147 #else
00148 
00149 typedef struct _MMPTE_HARDWARE
00150 {
00151     ULONG Valid:1;
00152     ULONG Writable:1;
00153     ULONG Owner:1;
00154     ULONG WriteThrough:1;
00155     ULONG CacheDisable:1;
00156     ULONG Accessed:1;
00157     ULONG Dirty:1;
00158     ULONG LargePage:1;
00159     ULONG Global:1;
00160     ULONG CopyOnWrite:1;
00161     ULONG Prototype:1;
00162     ULONG Write:1;
00163     ULONG PageFrameNumber:20;
00164 } MMPTE_HARDWARE, *PMMPTE_HARDWARE;
00165 
00166 #endif
00167 
00168 //
00169 // Use the right PTE structure
00170 //
00171 #define HARDWARE_PTE        HARDWARE_PTE_X86
00172 #define PHARDWARE_PTE       PHARDWARE_PTE_X86
00173 
00174 #endif
Generated on Sun May 27 2012 04:30:48 for ReactOS by
1.7.6.1