// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

// e32\include\memmodel\epoc\mmubase\mmubase.inl

// 

//

#ifndef __MMUBASE_INL__

#define __MMUBASE_INL__

#include <mmboot.h>

const TInt KPageInfosPerPageShift = KPageShift-KPageInfoShift;

const TInt KPageInfosPerPage = 1<<KPageInfosPerPageShift;

const TInt KNumPageInfoPagesShift = 32-KPageShift-KPageInfosPerPageShift;

const TInt KNumPageInfoPages = 1<<KNumPageInfoPagesShift;

inline SPageInfo* SPageInfo::FromPhysAddr(TPhysAddr aAddress)

	{

	return ((SPageInfo*)KPageInfoLinearBase)+(aAddress>>KPageShift);

	}

inline TPhysAddr SPageInfo::PhysAddr()

	{

	return ((TPhysAddr)this)<<KPageInfosPerPageShift;

	}

//

// M class implementations of ram allocator and defrag methods

// Make these inline as they are just memory model independent interface

// for the ram allocator and defrag classes.

//

inline TInt M::PageShift()

	{

	return KPageShift;

	}

inline void M::RamAllocLock()

	{

	MmuBase::Wait();

	}

inline void M::RamAllocUnlock()

	{

	MmuBase::Signal();

	}

inline void M::RamAllocIsLocked()

	{

#ifdef _DEBUG

	if (!K::Initialising) 

		__ASSERT_MUTEX(MmuBase::RamAllocatorMutex);

#endif

	}

inline TUint M::NumberOfFreeDpPages()

	{

	return Mmu::Get().NumberOfFreeDpPages();

	}

inline TUint M::NumberOfDirtyDpPages()

	{// This memory model doesn't support data paging so can't get dirty paged pages.

	return 0;

	}

inline TInt M::MovePage(TPhysAddr aOld, TPhysAddr& aNew, TUint aBlockZoneId, TUint aMoveDisFlags)

	{

	return Mmu::Get().MovePage(	aOld, aNew, aBlockZoneId, 

								(aMoveDisFlags & M::EMoveDisBlockRest)!=0);

	}

inline TInt M::DiscardPage(TPhysAddr aAddr, TUint aBlockZoneId, TUint aMoveDisFlags)

	{

	return Mmu::Get().DiscardPage(	aAddr, aBlockZoneId, 

									(aMoveDisFlags & M::EMoveDisBlockRest)!=0);

	}

#endif