// Copyright (c) 1997-2009 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:

// e32test\mmu\t_ramall.cpp

// 

//

#define __E32TEST_EXTENSION__

#include <e32test.h>

#include <e32uid.h>

#include <e32hal.h>

#include "d_shadow.h"

#include "mmudetect.h"

#include "freeram.h"

LOCAL_D RTest test(_L("T_RAMALL"));

_LIT(KLddFileName,"D_SHADOW.LDD");

TInt PageSize;

TInt PageShift;

RShadow Shadow;

TInt InitFreeRam;

TInt AllocPhysicalRam(TUint32& aAddr, TInt aSize, TInt aAlign)

	{

	return Shadow.AllocPhysicalRam(aAddr,aSize,aAlign);

	}

TInt FreePhysicalRam(TUint32 aAddr, TInt aSize)

	{

	return Shadow.FreePhysicalRam(aAddr,aSize);

	}

TInt ClaimPhysicalRam(TUint32 aAddr, TInt aSize)

	{

	return Shadow.ClaimPhysicalRam(aAddr,aSize);

	}

void TestAlignedAllocs()

	{

	TInt align;

	TInt size;

	for (align=PageShift; align<=20; ++align)

		{

		for (size=PageSize; size<=0x100000; size+=PageSize)

			{

			TInt free=FreeRam();

			TUint32 pa=0;

			TInt r=AllocPhysicalRam(pa,size,align);

			test.Printf(_L("Size %08x Align %d r=%d pa=%08x\n"),size,align,r,pa);

			if (r==KErrNone)

				{

				TUint32 as=1u<<align;

				TUint32 am=as-1;

				test(FreeRam()==free-size);

				test((pa&am)==0);

				r=FreePhysicalRam(pa,size);

				test(r==KErrNone);

				}

			test(FreeRam()==free);

			}

		}

	}

void TestClaimPhys()

	{

	TInt free=FreeRam();

	TUint32 pa=0;

	test(r==KErrNone);

	test(FreeRam()==free-4*PageSize);

	r=FreePhysicalRam(pa,4*PageSize);

	test(r==KErrNone);

	test(FreeRam()==free);

	test(r==KErrNone);

	test(FreeRam()==free-4*PageSize);

	r=FreePhysicalRam(pa,3*PageSize);

	test(r==KErrNone);

	test(FreeRam()==free-PageSize);

	r=ClaimPhysicalRam(pa,4*PageSize);

	test(r==KErrInUse);

	test(FreeRam()==free-PageSize);

	if (HaveVirtMem())

		{

		r=FreePhysicalRam(pa,4*PageSize);

		test(r==KErrGeneral);

		test(FreeRam()==free-PageSize);

		}

	r=FreePhysicalRam(pa+3*PageSize,PageSize);

	test(r==KErrNone);

	test(FreeRam()==free);

	}

GLDEF_C TInt E32Main()

//

// Test RAM allocation

//

    {

	test.Title();

	test.Start(_L("Load test LDD"));

	TInt r=User::LoadLogicalDevice(KLddFileName);

	test(r==KErrNone || r==KErrAlreadyExists);

	r=UserHal::PageSizeInBytes(PageSize);

	test(r==KErrNone);

	TInt psz=PageSize;

	PageShift=-1;

	for (; psz; psz>>=1, ++PageShift);

	InitFreeRam=FreeRam();

	test.Printf(_L("Free RAM=%08x, Page size=%x, Page shift=%d\n"),InitFreeRam,PageSize,PageShift);

	test.Next(_L("Open test LDD"));

	r=Shadow.Open();

	test(r==KErrNone);

	TestAlignedAllocs();

	TestClaimPhys();

	Shadow.Close();

	test.End();

	return(KErrNone);

    }