// Copyright (c) 1996-2009 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:

//

#include <memmodel.h>

#include "mmu/mm.h"

#include "mmboot.h"

#include "cache_maintenance.h"

#include "mmu/mmu.h"

#include "mmu/mpager.h"

extern void DoProcessSwitch();

void M::Init1()

	{

	// Memory model dependent CPU stuff

	__KTRACE_OPT(KBOOT,Kern::Printf("MM::Init1()"));

	K::MaxMemCopyInOneGo=KDefaultMaxMemCopyInOneGo;

	TheScheduler.SetProcessHandler((TLinAddr)DoProcessSwitch);

	__KTRACE_OPT(KBOOT,Kern::Printf("K::MaxMemCopyInOneGo=0x%x",K::MaxMemCopyInOneGo));

	// Set up cache info

	CacheMaintenance::Init1();

	// First phase MMU initialisation

	MM::Init1();

	}

void M::Init2()

	{

	// Second phase MMU initialisation

	MM::Init2();

	}

void M::Init3()

	{

	// Third phase MMU initialisation

	MM::Init3();

	}

void M::Init4()

    {

    // Fourth phase MMU initialisation

    ThePager.InitCache();

    }

TInt M::InitSvHeapChunk(DChunk* aChunk, TInt aSize)

	{

	TInt r;

	TLinAddr base = TheRomHeader().iKernDataAddress;

	DMemModelChunk* pC = (DMemModelChunk*)aChunk;

	K::HeapInfo.iChunk = aChunk;

	K::HeapInfo.iBase = (TUint8*)base;

	K::HeapInfo.iMaxSize = pC->MaxSize();

	pC->SetFixedAddress(base, aSize);

	__KTRACE_OPT(KBOOT,Kern::Printf("Created SvHeap chunk, addr %08X, init size %08X max size %08X",base,aSize,pC->MaxSize()));

	r=((DMemModelProcess*)K::TheKernelProcess)->DoAddChunk(pC,EFalse);

 	__KTRACE_OPT(KBOOT,Kern::Printf("Added kernel heap chunk to current process, %d",r));

	__NK_ASSERT_DEBUG(pC->Base(K::TheKernelProcess)==(TUint8*)base);

	return r;

	}

TInt M::InitSvStackChunk()

	{

	// nothing to do...

	return KErrNone;

	}

void RHeapK::Mutate(TInt aOffset, TInt aMaxLength)

//

// Used by the kernel to mutate a fixed heap into a chunk heap.

//

	{

	iMinLength += aOffset;

	iMaxLength = aMaxLength + aOffset;

	iOffset = aOffset;

	iChunkHandle = (TInt)K::HeapInfo.iChunk;

	iPageSize = KPageSize;

	iGrowBy = iPageSize;

	iFlags = 0;

	MM::MemorySetLock(((DMemModelChunk*)K::HeapInfo.iChunk)->iMemoryObject,*(DMutex**)&iLock);

	}