windows-xp/Source/XPSP1/NT/base/ntos/mm/alpha/datalpha.c

/*++

Copyright (c) 1990  Microsoft Corporation
Copyright (c) 1992  Digital Equipment Corporation

Module Name:

   dataalpha.c

Abstract:

    This module contains the private hardware specific global storage for
    the memory management subsystem.

Author:

    Lou Perazzoli (loup) 27-Mar-1990
    Joe Notarangelo  23-April-1992

Revision History:

--*/

#include "mi.h"

//
// A zero Pte.
//

const MMPTE ZeroPte = { 0 };

//
// A kernel zero PTE.
//

const MMPTE ZeroKernelPte = { 0 };

MMPTE ValidKernelPte = { MM_PTE_VALID_MASK |
                         MM_PTE_WRITE_MASK |
                         MM_PTE_DIRTY_MASK |
                         MM_PTE_GLOBAL_MASK };

const MMPTE ValidKernelPteLocal = { MM_PTE_VALID_MASK |
                                    MM_PTE_WRITE_MASK |
                                    MM_PTE_DIRTY_MASK };
    
const MMPTE ValidUserPte =   { MM_PTE_VALID_MASK |
                               MM_PTE_WRITE_MASK |
                               MM_PTE_OWNER_MASK |
                               MM_PTE_DIRTY_MASK };

const MMPTE ValidPtePte =   { MM_PTE_VALID_MASK |
                              MM_PTE_WRITE_MASK |
                              MM_PTE_DIRTY_MASK };

const MMPTE ValidPdePde =   { MM_PTE_VALID_MASK |
                              MM_PTE_WRITE_MASK |
                              MM_PTE_DIRTY_MASK };

MMPTE ValidKernelPde =   { MM_PTE_VALID_MASK |
                           MM_PTE_WRITE_MASK |
                           MM_PTE_DIRTY_MASK |
                           MM_PTE_GLOBAL_MASK };

const MMPTE ValidKernelPdeLocal =   { MM_PTE_VALID_MASK |
                                      MM_PTE_WRITE_MASK |
                                      MM_PTE_DIRTY_MASK };

MMPTE DemandZeroPde = { MM_READWRITE << 3 };

const MMPTE DemandZeroPte = { MM_READWRITE << 3 };

const MMPTE TransitionPde = { MM_PTE_TRANSITION_MASK | (MM_READWRITE << 3) };

MMPTE PrototypePte = { 0xFFFFF000 | (MM_READWRITE << 3) | MM_PTE_PROTOTYPE_MASK };

//
// PTE which generates an access violation when referenced.
//

const MMPTE NoAccessPte = {MM_NOACCESS << 3};

//
// Pool start and end.
//

PVOID MmNonPagedPoolStart;

PVOID MmNonPagedPoolEnd = (PVOID)(MM_NONPAGED_POOL_END);

const PVOID MmPagedPoolStart =  (PVOID)(MM_PAGED_POOL_START);

PVOID MmPagedPoolEnd;

//
// PTE reserved for mapping physical data for debugger.
//

PMMPTE MmDebugPte =  MiGetPteAddress( 0xfffdf000 );

//
// 16 PTEs reserved for mapping MDLs (128k max).
//

PMMPTE MmCrashDumpPte = (MiGetPteAddress(MM_NONPAGED_POOL_END));


#if MM_MAXIMUM_NUMBER_OF_COLORS > 1
MMPFNLIST MmFreePagesByPrimaryColor[2][MM_MAXIMUM_NUMBER_OF_COLORS];
#endif

PMMCOLOR_TABLES MmFreePagesByColor[2];

MMPFNLIST MmModifiedPageListByColor[MM_MAXIMUM_NUMBER_OF_COLORS] = {
                            0, ModifiedPageList, MM_EMPTY_LIST, MM_EMPTY_LIST};

//
// Color tables for modified pages destined for the paging file.
//

ULONG MmTotalPagesForPagingFile;