// 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:

// e32\memmodel\epoc\moving\minit.cpp

// 

//

#include "memmodel.h"

#include "cache_maintenance.h"

_LIT(KLitSvStack,"SvStack");

const TInt KMaxSupervisorStackSpace=0x200000;

void M::Init1()

	{

	TheCurrentAddressSpace=NULL;

	TheCurrentVMProcess=NULL;

	TheCurrentDataSectionProcess=NULL;

	TheCompleteDataSectionProcess=NULL;

	// Memory model dependent CPU stuff

	MM::Init1();

	// Set up cache info

	CacheMaintenance::Init1();

	// First phase MMU initialisation

	Mmu& m=Mmu::Get();

	m.Init1();

	}

void M::Init2()

	{

	// Second phase MMU initialisation

	Mmu& m=Mmu::Get();

	m.Init2();

	}

void M::Init3()

	{

	// Third phase MMU initialisation

	Mmu& m=Mmu::Get();

	m.Init3();

	}

void M::Init4()

    {

    // Fourth phase MMU initialisation - Not required on this memory model.

    }

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

	{

	TInt r;

	DMemModelChunk* pC=(DMemModelChunk*)aChunk;

	TLinAddr base = TheRomHeader().iKernDataAddress;

	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",pC->Base(),aSize,pC->MaxSize()));

	TLinAddr dataSectionBase=0;

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

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

	return r;

	}

TInt M::InitSvStackChunk()

	{

	// create a chunk to hold supervisor-mode stacks

	DMemModelChunk* pC=NULL;

	DMemModelProcess* pP=(DMemModelProcess*)K::TheKernelProcess;

	TInt maxsize=Mmu::RoundToChunkSize(KMaxSupervisorStackSpace);

	TLinAddr dataSectionBase=0;

	SChunkCreateInfo cinfo;

	cinfo.iGlobal=EFalse;

	cinfo.iAtt=TChunkCreate::EDisconnected;

	cinfo.iForceFixed=EFalse;

	cinfo.iOperations=0;

	cinfo.iType=EKernelStack;

	cinfo.iMaxSize=maxsize;

	cinfo.iPreallocated=0;

	cinfo.iName.Set(KLitSvStack);

	cinfo.iOwner=K::TheKernelProcess;

	TInt r=pP->NewChunk((DChunk*&)pC,cinfo,dataSectionBase);

	__KTRACE_OPT(KBOOT,Kern::Printf("Created SvStack, %d",r));

	if (r!=KErrNone)

		return r;

	r=pC->Reserve(0);

	if (r!=KErrNone)

		return r;

	__KTRACE_OPT(KBOOT,Kern::Printf("Created SvStack chunk, addr %08X, max size %08X",pC->Base(),maxsize));

	MM::SvStackChunk=pC;

	r=pP->AddChunk(pC,dataSectionBase,EFalse);

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

	// create user code chunk

	if (r==KErrNone)

		r = MM::CreateCodeChunk(EFalse);

	// create kernel code chunk

	if (r==KErrNone)

		r = MM::CreateCodeChunk(ETrue);

	return r;

	}