sl@0: // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of the License "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // e32test\mmu\t_mwait.cpp
sl@0: // Overview:
sl@0: // Memory Wait State tests
sl@0: // API Information:
sl@0: // RChunk
sl@0: // Details:
sl@0: // - Load and open the logical device driver ("D_SHADOW.LDD"). Verify
sl@0: // results.
sl@0: // - Create a user writable code chunk and copy a small "SpeedTest" function
sl@0: // into the chunk.
sl@0: // - Perform a speed test in shadow ROM and RAM and report the relative performance.
sl@0: // Platforms/Drives/Compatibility:
sl@0: // All.
sl@0: // Assumptions/Requirement/Pre-requisites:
sl@0: // Failures and causes:
sl@0: // Base Port information:
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include <e32test.h>
sl@0: #include "u32std.h"
sl@0: #include "d_shadow.h"
sl@0: 
sl@0: RTest test(_L("T_MWAIT"));
sl@0: 
sl@0: typedef TLinAddr (*TMemSpeedTest)(TInt,TInt&);
sl@0: 
sl@0: extern TLinAddr MemSpeedTest(TInt /*aLoopSize*/, TInt& /*aCount*/);
sl@0: 
sl@0: TMemSpeedTest TheSpeedTestFunction;
sl@0: TInt TheLoopSize;
sl@0: TInt Count;
sl@0: RSemaphore TheSemaphore;
sl@0: TUint8* RamSpeedTestCodePtr;	// speed test code will be copied here to run from RAM
sl@0: 
sl@0: void CopyCode(RChunk& aC)
sl@0: 	{
sl@0: 	TLinAddr code_begin=(TLinAddr)&MemSpeedTest;
sl@0: 	TInt dummy;
sl@0: 	TLinAddr code_end=MemSpeedTest(0,dummy);
sl@0: 	TInt code_size=TInt(code_end-code_begin);
sl@0: 	test.Printf(_L("ROM Code start: %08x\n"), code_begin);
sl@0: 	test.Printf(_L("ROM Code end  : %08x\n"), code_end);
sl@0: 	test.Printf(_L("ROM Code size : %08x\n"), code_size);
sl@0: 	TInt r = aC.CreateLocalCode(code_size, code_size);
sl@0: 	test(r==KErrNone);
sl@0: 	RamSpeedTestCodePtr = aC.Base();
sl@0: 	Mem::Copy(RamSpeedTestCodePtr, (const TAny*)code_begin, code_size);
sl@0: 	User::IMB_Range(RamSpeedTestCodePtr, RamSpeedTestCodePtr + code_size - 1);
sl@0: 	test.Printf(_L("RAM Code base : %08x\n"), RamSpeedTestCodePtr);
sl@0: 	}
sl@0: 
sl@0: TInt MemSpeedTestThread(TAny*)
sl@0: 	{
sl@0: 	TheSemaphore.Signal();
sl@0: 	(*TheSpeedTestFunction)(TheLoopSize,Count);
sl@0: 	return 0;
sl@0: 	}
sl@0: 
sl@0: const TInt KHeapSize=4096;
sl@0: TInt KMemSpeedTestAddress = (TInt)(&MemSpeedTest);
sl@0: 
sl@0: TInt DoMemSpeedTest(TBool aRam, TInt aLoopSize)
sl@0: 	{
sl@0: 	if (aRam)
sl@0: #ifdef __MARM__
sl@0: 		TheSpeedTestFunction=(TMemSpeedTest)(RamSpeedTestCodePtr+(KMemSpeedTestAddress&1));	// add 1 if THUMB function
sl@0: #else
sl@0: 		TheSpeedTestFunction=(TMemSpeedTest)RamSpeedTestCodePtr;
sl@0: #endif
sl@0: 	else
sl@0: 		TheSpeedTestFunction=MemSpeedTest;
sl@0: 	Count=0;
sl@0: 	TheLoopSize=aLoopSize;
sl@0: 	RShadow sh;
sl@0: 	TInt r=sh.Open();
sl@0: 	test(r==KErrNone);
sl@0: 	RThread t;
sl@0: 	r=t.Create(_L("Speedy"),MemSpeedTestThread,KDefaultStackSize,KHeapSize,KHeapSize,NULL);
sl@0: 	test(r==KErrNone);
sl@0: //	t.SetPriority(EPriorityLess);
sl@0: 	sh.SetPriority(t.Handle(),25);
sl@0: 	sh.SetPriority(RThread().Handle(),26);
sl@0: 	TRequestStatus s;
sl@0: 	t.Logon(s);
sl@0: 	t.Resume();
sl@0: 	TheSemaphore.Wait();
sl@0: 	User::After(1000000);
sl@0: 	t.Kill(0);
sl@0: 	sh.SetPriority(RThread().Handle(),12);	// so thread gets cleaned up
sl@0: 	User::WaitForRequest(s);
sl@0: 	test(s.Int()==KErrNone);
sl@0: 	test(t.ExitType()==EExitKill);
sl@0: 	CLOSE_AND_WAIT(t);
sl@0: 	sh.Close();
sl@0: 	return Count;
sl@0: 	}
sl@0: 
sl@0: void DoFullTest(TBool aRam)
sl@0: 	{
sl@0: 	TInt count[32];
sl@0: 	TInt i;
sl@0: 	for (i=0; i<32; i++)
sl@0: 		{
sl@0: 		TInt loopSize=(i+1)*2048;
sl@0: 		test.Printf(_L("Loop size %dK "),loopSize>>10);
sl@0: 		count[i]=DoMemSpeedTest(aRam,loopSize);
sl@0: 		TInt64 inst = TInt64(count[i]) * TInt64(loopSize>>2);
sl@0: 		test.Printf(_L("%d loops %ld instructions\n"),count[i],inst);
sl@0: 		}
sl@0: 	test.Printf(_L("\n"));
sl@0: 	}
sl@0: 
sl@0: GLDEF_C TInt E32Main()
sl@0: 	{
sl@0: 	test.Title();
sl@0: 
sl@0: 	test.Start(_L("Memory Wait State tests"));
sl@0: 
sl@0: 	TInt r=TheSemaphore.CreateLocal(0);
sl@0: 	test(r==KErrNone);
sl@0: 
sl@0: 	r=User::LoadLogicalDevice(_L("D_SHADOW"));
sl@0: 	test(r==KErrNone || r==KErrAlreadyExists);
sl@0: 
sl@0: 	RChunk c;
sl@0: 	CopyCode(c);
sl@0: 
sl@0: 	test.Next(_L("Testing ROM wait states..."));
sl@0: 	DoFullTest(EFalse);
sl@0: 
sl@0: 	test.Next(_L("Testing RAM wait states..."));
sl@0: 	DoFullTest(ETrue);
sl@0: 
sl@0: 	c.Close();
sl@0: 	test.End();
sl@0: 	return 0;
sl@0: 	}