kerneltest/e32test/mmu/t_ramall.cpp
changeset 9 96e5fb8b040d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/mmu/t_ramall.cpp	Thu Dec 17 09:24:54 2009 +0200
@@ -0,0 +1,155 @@
+// 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;
+	TInt r=AllocPhysicalRam(pa,4*PageSize,0);	
+	test(r==KErrNone);
+	test(FreeRam()==free-4*PageSize);
+	
+	r=FreePhysicalRam(pa,4*PageSize);
+	test(r==KErrNone);
+	test(FreeRam()==free);
+	
+	r=ClaimPhysicalRam(pa,4*PageSize);	
+	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);
+	
+#ifdef MANUAL_PANIC_TEST
+//This section of the test should be run as a manual test as it results in
+// a panic due to attempting to Free an unclaimed page
+	if (HaveVirtMem())
+		{
+		test.Printf(_L("HaveVirtMem() \n"));
+		r=FreePhysicalRam(pa,4*PageSize);
+		test.Printf(_L("FreePhysicalRam() \n"));
+		test(r==KErrGeneral);
+		test(FreeRam()==free-PageSize);
+		}
+#endif
+	
+	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);
+	
+	test.Next(_L("TestAlignedAllocs"));
+	TestAlignedAllocs();
+	
+	test.Next(_L("TestClaimPhys"));
+	TestClaimPhys();
+
+	Shadow.Close();
+	test.End();
+	return(KErrNone);
+    }
+