reactos/include/ndk/i386/mmtypes.h

   1 /*++ NDK Version: 0095
   2
   3 Copyright (c) Alex Ionescu.  All rights reserved.
   4
   5 Header Name:
   6
   7     mmtypes.h (X86)
   8
   9 Abstract:
  10
  11     i386 Type definitions for the Memory Manager
  12
  13 Author:
  14
  15     Alex Ionescu (alex.ionescu@reactos.com)   06-Oct-2004
  16
  17 --*/
  18
  19 #ifndef _I386_MMTYPES_H
  20 #define _I386_MMTYPES_H
  21
  22 #ifdef __cplusplus
  23 extern "C" {
  24 #endif
  25
  26 //
  27 // Dependencies
  28 //
  29
  30 //
  31 // Page-related Macros
  32 //
  33 #define PAGE_SIZE                         0x1000
  34 #define PAGE_SHIFT                        12L
  35 #define MM_ALLOCATION_GRANULARITY         0x10000
  36 #define MM_ALLOCATION_GRANULARITY_SHIFT   16L
  37
  38 //
  39 // Address of the shared user page
  40 //
  41 #define MM_SHARED_USER_DATA_VA 0x7FFE0000
  42
  43 //
  44 // Sanity checks for Paging Macros
  45 //
  46 #ifdef C_ASSERT
  47 C_ASSERT(PAGE_SIZE == (1 << PAGE_SHIFT));
  48 C_ASSERT(MM_ALLOCATION_GRANULARITY == (1 << MM_ALLOCATION_GRANULARITY_SHIFT));
  49 C_ASSERT(MM_ALLOCATION_GRANULARITY &&
  50          !(MM_ALLOCATION_GRANULARITY & (MM_ALLOCATION_GRANULARITY - 1)));
  51 C_ASSERT(MM_ALLOCATION_GRANULARITY >= PAGE_SIZE);
  52 #endif
  53
  54 //
  55 // PAE SEG0 Base?
  56 //
  57 #define KSEG0_BASE_PAE                    0xE0000000
  58
  59 //
  60 // Page Table Entry Definitions
  61 //
  62 typedef struct _HARDWARE_PTE_X86
  63 {
  64     ULONG Valid:1;
  65     ULONG Write:1;
  66     ULONG Owner:1;
  67     ULONG WriteThrough:1;
  68     ULONG CacheDisable:1;
  69     ULONG Accessed:1;
  70     ULONG Dirty:1;
  71     ULONG LargePage:1;
  72     ULONG Global:1;
  73     ULONG CopyOnWrite:1;
  74     ULONG Prototype: 1;
  75     ULONG reserved: 1;
  76     ULONG PageFrameNumber:20;
  77 } HARDWARE_PTE_X86, *PHARDWARE_PTE_X86;
  78
  79 typedef struct _MMPTE_SOFTWARE
  80 {
  81     ULONG Valid:1;
  82     ULONG PageFileLow:4;
  83     ULONG Protection:5;
  84     ULONG Prototype:1;
  85     ULONG Transition:1;
  86     ULONG PageFileHigh:20;
  87 } MMPTE_SOFTWARE;
  88
  89 typedef struct _MMPTE_TRANSITION
  90 {
  91     ULONG Valid:1;
  92     ULONG Write:1;
  93     ULONG Owner:1;
  94     ULONG WriteThrough:1;
  95     ULONG CacheDisable:1;
  96     ULONG Protection:5;
  97     ULONG Prototype:1;
  98     ULONG Transition:1;
  99     ULONG PageFrameNumber:20;
 100 } MMPTE_TRANSITION;
 101
 102 typedef struct _MMPTE_PROTOTYPE
 103 {
 104     ULONG Valid:1;
 105     ULONG ProtoAddressLow:7;
 106     ULONG ReadOnly:1;
 107     ULONG WhichPool:1;
 108     ULONG Prototype:1;
 109     ULONG ProtoAddressHigh:21;
 110 } MMPTE_PROTOTYPE;
 111
 112 typedef struct _MMPTE_SUBSECTION
 113 {
 114     ULONG Valid:1;
 115     ULONG SubsectionAddressLow:4;
 116     ULONG Protection:5;
 117     ULONG Prototype:1;
 118     ULONG SubsectionAddressHigh:20;
 119     ULONG WhichPool:1;
 120 } MMPTE_SUBSECTION;
 121
 122 typedef struct _MMPTE_LIST
 123 {
 124     ULONG Valid:1;
 125     ULONG OneEntry:1;
 126     ULONG filler0:8;
 127     ULONG Prototype:1;
 128     ULONG filler1:1;
 129     ULONG NextEntry:20;
 130 } MMPTE_LIST;
 131
 132 #ifndef CONFIG_SMP
 133
 134 typedef struct _MMPTE_HARDWARE
 135 {
 136     ULONG Valid:1;
 137     ULONG Write:1;
 138     ULONG Owner:1;
 139     ULONG WriteThrough:1;
 140     ULONG CacheDisable:1;
 141     ULONG Accessed:1;
 142     ULONG Dirty:1;
 143     ULONG LargePage:1;
 144     ULONG Global:1;
 145     ULONG CopyOnWrite:1;
 146     ULONG Prototype:1;
 147     ULONG reserved:1;
 148     ULONG PageFrameNumber:20;
 149 } MMPTE_HARDWARE, *PMMPTE_HARDWARE;
 150
 151 #else
 152
 153 typedef struct _MMPTE_HARDWARE
 154 {
 155     ULONG Valid:1;
 156     ULONG Writable:1;
 157     ULONG Owner:1;
 158     ULONG WriteThrough:1;
 159     ULONG CacheDisable:1;
 160     ULONG Accessed:1;
 161     ULONG Dirty:1;
 162     ULONG LargePage:1;
 163     ULONG Global:1;
 164     ULONG CopyOnWrite:1;
 165     ULONG Prototype:1;
 166     ULONG Write:1;
 167     ULONG PageFrameNumber:20;
 168 } MMPTE_HARDWARE, *PMMPTE_HARDWARE;
 169
 170 #endif
 171
 172 //
 173 // Use the right PTE structure
 174 //
 175 #define HARDWARE_PTE        HARDWARE_PTE_X86
 176 #define PHARDWARE_PTE       PHARDWARE_PTE_X86
 177
 178 #ifdef __cplusplus
 179 }; // extern "C"
 180 #endif
 181
 182 #endif