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os/kernelhwsrv/kerneltest/e32test/demandpaging/t_pagingexample.cpp
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib. 
     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 // e32test\demandpaging\t_pagingexample.cpp

    15 // Test device driver migration examples

    16 // 

    17 //

    18 

    19 #define __E32TEST_EXTENSION__

    20 #include <e32test.h>

    21 #include <dptest.h>

    22 #include <e32hal.h>

    23 #include <u32exec.h>

    24 #include <e32svr.h>

    25 #include <e32panic.h>

    26 #include <e32rom.h>

    27 #include <e32kpan.h>

    28 #include "../mmu/t_codepaging_dll.h"

    29 #include "d_pagingexample.h"

    30 

    31 const TInt KBufferSize = KMaxTransferSize;

    32 _LIT(KTCodePagingDll4, "t_codepaging_dll4.dll");

    33 

    34 struct TTestData

    35 	{

    36 	TRequestStatus iStatus;

    37 	RPagingExample::TConfigData iConfig;

    38 	RPagingExample::TValueStruct iValue;

    39 	TInt iIntValue1;

    40 	TInt iIntValue2;

    41 	TPtr8 iPtr;

    42 	TUint8 iBuffer[KBufferSize];

    43 public:

    44 	TTestData() : iPtr(NULL, 0) { }

    45 	};

    46 

    47 RTest test(_L("T_PAGINGEXAMPLE"));

    48 TInt PageSize = 0;

    49 RLibrary PagedLibrary;

    50 TTestData* UnpagedInputData = NULL;

    51 TTestData* UnpagedOutputData = NULL;

    52 TTestData* PagedInputData = NULL;

    53 TTestData* PagedOutputData = NULL;

    54 

    55 void InitInputData(TTestData* aData)

    56 	{

    57 	aData->iConfig.iParam1 = 2;

    58 	aData->iConfig.iParam2 = 3;

    59 	aData->iConfig.iParam3 = 5;

    60 	aData->iConfig.iParam4 = 7;

    61 	for (TInt i = 0 ; i < KBufferSize ; ++i)

    62 		aData->iBuffer[i] = (TUint8)(i + 123);

    63 	}

    64 

    65 void DoTestDriver(const TDesC& aDriverName, const TTestData* aInputData, TTestData* aOutputData)

    66 	{

    67 	test.Start(_L("Load logical device"));

    68 	TInt r = User::LoadLogicalDevice(aDriverName);

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

    70 	

    71 	test.Next(_L("Open logical device"));

    72 	RPagingExample ldd;

    73 	test_KErrNone(ldd.Open(aDriverName));

    74 	

    75 	test.Next(_L("Set config"));

    76 	DPTest::FlushCache();

    77 	test_KErrNone(ldd.SetConfig(aInputData->iConfig));

    78 

    79 	test.Next(_L("Get config"));

    80 	Mem::FillZ(&aOutputData->iConfig, sizeof(RPagingExample::TConfigData));

    81 	DPTest::FlushCache();

    82 	test_KErrNone(ldd.GetConfig(aOutputData->iConfig));

    83 	test_Equal(0, Mem::Compare((TUint8*)&aInputData->iConfig, sizeof(RPagingExample::TConfigData),

    84 							   (TUint8*)&aOutputData->iConfig, sizeof(RPagingExample::TConfigData)));

    85 	

    86 	TRequestStatus& status = aOutputData->iStatus;

    87 

    88 	test.Next(_L("Notify"));

    89 	DPTest::FlushCache();

    90 	ldd.Notify(status);

    91 	DPTest::FlushCache();

    92 	User::WaitForRequest(status);

    93 	test_Equal(KErrNone, status.Int());

    94 

    95 	test.Next(_L("Async get value"));

    96 	memclr(&aOutputData->iValue, sizeof(RPagingExample::TValueStruct));

    97 	DPTest::FlushCache();

    98 	ldd.AsyncGetValue(status, aOutputData->iValue);

    99 	DPTest::FlushCache();

   100 	User::WaitForRequest(status);

   101 	test_Equal(KErrNone, status.Int());

   102 	test_Equal(1, aOutputData->iValue.iValue1);

   103 	test(aOutputData->iValue.iValue2 == _L8("shrt"));

   104 

   105 	test.Next(_L("Cancel async get value"));

   106 	ldd.AsyncGetValue(status, aOutputData->iValue);

   107 	ldd.Cancel();

   108 	User::WaitForRequest(status);

   109 	test_Equal(KErrCancel, status.Int());

   110 

   111 	test.Next(_L("Async get value 2"));

   112 	aOutputData->iIntValue1 = 0;

   113 	aOutputData->iIntValue2 = 0;

   114 	DPTest::FlushCache();

   115 	ldd.AsyncGetValue2(status, aOutputData->iIntValue1, aOutputData->iIntValue2);

   116 	DPTest::FlushCache();

   117 	User::WaitForRequest(status);

   118 	test_Equal(KErrNone, status.Int());

   119 	test_Equal(1, aOutputData->iIntValue1);

   120 	test_Equal(2, aOutputData->iIntValue2);

   121 

   122 	test.Next(_L("Cancel async get value 2"));

   123 	ldd.AsyncGetValue2(status, aOutputData->iIntValue1, aOutputData->iIntValue2);

   124 	ldd.Cancel();

   125 	User::WaitForRequest(status);

   126 	test_Equal(KErrCancel, status.Int());

   127 

   128 	test.Next(_L("Write buffer too short"));

   129 	ldd.Write(status, NULL, 0);

   130 	User::WaitForRequest(status);

   131 	test_Equal(KErrArgument, status.Int());

   132 

   133 	test.Next(_L("Write buffer too long"));

   134 	ldd.Write(status, NULL, KMaxTransferSize + 1);

   135 	User::WaitForRequest(status);

   136 	test_Equal(KErrArgument, status.Int());

   137 

   138 	test.Next(_L("Write"));

   139 	DPTest::FlushCache();

   140 	ldd.Write(status, aInputData->iBuffer, KBufferSize);

   141 	DPTest::FlushCache();

   142 	User::WaitForRequest(status);

   143 	test_KErrNone(status.Int());

   144 

   145 	test.Next(_L("Cancel write"));

   146 	ldd.Write(status, aInputData->iBuffer, KBufferSize);

   147 	ldd.Cancel();

   148 	User::WaitForRequest(status);

   149 	test_Equal(KErrCancel, status.Int());

   150 

   151 	test.Next(_L("Read buffer too short"));

   152 	ldd.Read(status, NULL, 0);

   153 	User::WaitForRequest(status);

   154 	test_Equal(KErrArgument, status.Int());

   155 	

   156 	test.Next(_L("Read buffer too long"));

   157 	ldd.Read(status, NULL, KMaxTransferSize + 1);

   158 	User::WaitForRequest(status);

   159 	test_Equal(KErrArgument, status.Int());

   160 	

   161 	test.Next(_L("Read"));

   162 	Mem::FillZ(aOutputData->iBuffer, KBufferSize);

   163 	DPTest::FlushCache();

   164 	ldd.Read(status, aOutputData->iBuffer, KBufferSize);

   165 	DPTest::FlushCache();

   166 	User::WaitForRequest(status);

   167 	test_KErrNone(status.Int());

   168 	test_Equal(0, Mem::Compare(aInputData->iBuffer, KBufferSize,

   169 							   aOutputData->iBuffer, KBufferSize));

   170 

   171 	test.Next(_L("Cancel read"));

   172 	ldd.Read(status, aOutputData->iBuffer, KBufferSize);

   173 	ldd.Cancel();

   174 	User::WaitForRequest(status);

   175 	test_Equal(KErrCancel, status.Int());

   176 

   177 	test.Next(_L("Cancel nothing"));

   178 	ldd.Cancel();

   179 	

   180 	test.Next(_L("Write while write pending"));

   181 	TRequestStatus status2;

   182 	ldd.Write(status, aInputData->iBuffer, KBufferSize);

   183 	ldd.Write(status2, aInputData->iBuffer, KBufferSize);

   184 	User::WaitForRequest(status);

   185 	test_KErrNone(status.Int());

   186 	User::WaitForRequest(status2);

   187 	test_Equal(KErrInUse, status2.Int());

   188 

   189 	test.Next(_L("Read while read pending"));

   190 	ldd.Read(status, aOutputData->iBuffer, KBufferSize);

   191 	ldd.Read(status2, aOutputData->iBuffer, KBufferSize);

   192 	User::WaitForRequest(status);

   193 	test_KErrNone(status.Int());

   194 	User::WaitForRequest(status2);

   195 	test_Equal(KErrInUse, status2.Int());	

   196 

   197 	test.Next(_L("Write des"));

   198 	TPtrC8 writeDes(aInputData->iBuffer + 1, KBufferSize - 1);

   199 	DPTest::FlushCache();

   200 	ldd.WriteDes(status, writeDes);

   201 	DPTest::FlushCache();

   202 	User::WaitForRequest(status);

   203 	test_KErrNone(status.Int());

   204 

   205 	test.Next(_L("Cancel write des"));

   206 	ldd.WriteDes(status, writeDes);

   207 	ldd.Cancel();

   208 	User::WaitForRequest(status);

   209 	test_Equal(KErrCancel, status.Int());

   210 	

   211 	test.Next(_L("Read des"));

   212 	TPtr8 readDes(aOutputData->iBuffer, KBufferSize - 1);

   213 	Mem::FillZ(aOutputData->iBuffer, KBufferSize);

   214 	DPTest::FlushCache();

   215 	ldd.ReadDes(status, readDes);

   216 	DPTest::FlushCache();

   217 	User::WaitForRequest(status);

   218 	test_KErrNone(status.Int());

   219 	test(readDes == writeDes);

   220 		

   221 	test.Next(_L("Read des 2"));  // has paged header but unpaged contnet, if output data is paged

   222 	aOutputData->iPtr.Set(UnpagedOutputData->iBuffer, 0, KBufferSize - 1);

   223 	Mem::FillZ(UnpagedOutputData->iBuffer, KBufferSize);

   224 	DPTest::FlushCache();

   225 	ldd.ReadDes(status, aOutputData->iPtr);

   226 	DPTest::FlushCache();

   227 	User::WaitForRequest(status);

   228 	test_KErrNone(status.Int());

   229 	test(aOutputData->iPtr == writeDes);

   230 		

   231 	test.Next(_L("Cancel read des"));

   232 	ldd.ReadDes(status, readDes);

   233 	ldd.Cancel();

   234 	User::WaitForRequest(status);

   235 	test_Equal(KErrCancel, status.Int());

   236 		

   237 	test.Next(_L("Read and write at the same time"));

   238 	ldd.Write(status, aInputData->iBuffer, KBufferSize);

   239 	ldd.Read(status2, aOutputData->iBuffer, KBufferSize);

   240 	DPTest::FlushCache();

   241 	User::WaitForRequest(status);

   242 	test_KErrNone(status.Int());

   243 	User::WaitForRequest(status2);

   244 	test_KErrNone(status2.Int());

   245 		

   246 	test.Next(_L("Cancel read and write"));

   247 	ldd.Write(status, aInputData->iBuffer, KBufferSize);

   248 	ldd.Read(status2, aOutputData->iBuffer, KBufferSize);

   249 	ldd.Cancel();

   250 	User::WaitForRequest(status);

   251 	test_Equal(KErrCancel, status.Int());

   252 	User::WaitForRequest(status2);

   253 	test_Equal(KErrCancel, status2.Int());

   254 	

   255 	test.Next(_L("Close and free logical device"));

   256 	ldd.Close();

   257 	test_KErrNone(User::FreeLogicalDevice(aDriverName));

   258 	

   259 	test.End();

   260 	}

   261 

   262 void TestDriver(const TDesC& aDriverName, TBool aMigrated)

   263 	{

   264 	TBuf<64> string;

   265 	string.Format(_L("Testing driver %S"), &aDriverName);

   266 	test.Next(string);

   267 

   268 	test.Start(_L("Test reading from unpaged memory and writing to unpaged memory"));

   269 	DoTestDriver(aDriverName, UnpagedInputData, UnpagedOutputData);

   270 	

   271 	if (aMigrated && PagedInputData)

   272 		{

   273 		if (PagedOutputData)

   274 			{

   275 			test.Next(_L("Test reading from paged memory and writing to paged memory"));

   276 			DoTestDriver(aDriverName, PagedInputData, PagedOutputData);

   277 			}

   278 		else

   279 			{

   280 			test.Next(_L("Test reading from paged memory and writing to unpaged memory"));

   281 			DoTestDriver(aDriverName, PagedInputData, UnpagedOutputData);

   282 			}

   283 		}

   284 	

   285 	// todo: test pinning failures

   286 

   287 	test.End();

   288 	}

   289 

   290 enum TTestAction

   291 	{

   292 	ETestRequestComplete,

   293 	ETestRawRead,

   294 	ETestRawWrite,

   295 	ETestDesRead,

   296 	ETestDesWrite

   297 	};

   298 

   299 enum TTestAccess

   300 	{

   301 	EAccessUnpaged,

   302 	EAccessPaged

   303 	};

   304 

   305 enum TTestOutcome

   306 	{

   307 	EOutcomeSuccess,

   308 	EOutcomeRealtimePanic

   309 	};

   310 

   311 TInt RealtimeTestFunc(TAny* aArg)

   312 	{

   313 	TTestAction action = (TTestAction)((TUint)aArg & 255);

   314 	TTestAccess access = (TTestAccess)((TUint)aArg >> 8);

   315 

   316 	TTestData* inputData = access == EAccessPaged ? PagedInputData : UnpagedInputData;

   317 	TTestData* outputData = access == EAccessPaged ? PagedOutputData : UnpagedOutputData;

   318 		

   319 	RPagingExample ldd;

   320 	TInt r = ldd.Open(KPagingExample1PreLdd);

   321 	if (r != KErrNone)

   322 		return r;

   323 	ldd.SetDfcThreadRealtimeState(ETrue);

   324 	

   325 	TRequestStatus unpagedStatus;

   326 	TRequestStatus* status = &unpagedStatus;

   327 	

   328 	switch(action)

   329 		{

   330 		case ETestRequestComplete:

   331 			{

   332 			RDebug::Printf("Test RequestComplete");

   333 			status = &outputData->iStatus;

   334 			RPagingExample::TValueStruct value;

   335 			DPTest::FlushCache();

   336 			ldd.AsyncGetValue(*status, value);

   337 			DPTest::FlushCache();

   338 			}

   339 			break;

   340 			

   341 		case ETestRawRead:

   342 			RDebug::Printf("Test ThreadRawRead");

   343 			ldd.Write(*status, inputData->iBuffer, KBufferSize);

   344 			DPTest::FlushCache();

   345 			break;

   346 			

   347 		case ETestRawWrite:

   348 			RDebug::Printf("Test ThreadRawWrite");

   349 			ldd.Read(*status, outputData->iBuffer, KBufferSize);

   350 			DPTest::FlushCache();

   351 			break;

   352 			

   353 		case ETestDesRead:

   354 			{

   355 			RDebug::Printf("Test ThreadDesRead");

   356 			TPtrC8 writeDes(inputData->iBuffer, KBufferSize);

   357 			ldd.WriteDes(*status, writeDes);

   358 			DPTest::FlushCache();

   359 			}

   360 			break;

   361 			

   362 		case ETestDesWrite:

   363 			{

   364 			RDebug::Printf("Test ThreadDesWrite");

   365 			TPtr8 readDes(outputData->iBuffer, KBufferSize);

   366 			ldd.ReadDes(*status, readDes);

   367 			DPTest::FlushCache();

   368 			}

   369 			break;

   370 		default:

   371 			return KErrArgument;

   372 		}

   373 	User::WaitForAnyRequest();

   374 	r = status->Int();

   375 	ldd.Close();

   376 	return r;

   377 	}

   378 

   379 void RunRealtimeTestThread(TTestAction aTestAction, TTestAccess aAccess, TTestOutcome aExpectedOutcome)

   380 	{

   381 	RThread thread;

   382 	TUint arg = aTestAction | (aAccess << 8);

   383 	test_KErrNone(thread.Create(KNullDesC, RealtimeTestFunc, 4096, NULL, (TAny*)arg));

   384 	TRequestStatus status;

   385 	thread.Logon(status);

   386 	thread.Resume();

   387 	User::WaitForRequest(status);

   388 	switch (aExpectedOutcome)

   389 		{

   390 		case EOutcomeSuccess:

   391 			test_Equal(EExitKill, thread.ExitType());

   392 			test_Equal(KErrNone, thread.ExitReason());

   393 			break;

   394 

   395 		case EOutcomeRealtimePanic:

   396 			test_Equal(EExitPanic, thread.ExitType());

   397 			test_Equal(EIllegalFunctionForRealtimeThread, thread.ExitReason());

   398 			break;

   399 

   400 		default:

   401 			test(EFalse);	

   402 		}

   403 	CLOSE_AND_WAIT(thread);

   404 	}

   405 

   406 void TestPagedAccessInRealtimeThread()

   407 	{

   408 	// Test driver access to paged memory from realtime DFC thread.  This can happen if a client

   409 	// passes paged memory to a driver that doesn't expect it, and has set its realtime state to

   410 	// enfore this.  The client should be panicked in this case.

   411 

   412 	test.Start(_L("Test memory access from realtime threads"));

   413 	test.Next(_L("Load logical device"));

   414 	TInt r = User::LoadLogicalDevice(KPagingExample1PreLdd);

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

   416 

   417 	test.Next(_L("Test access to unpaged memory from realtime thread"));

   418 	RunRealtimeTestThread(ETestRequestComplete, EAccessUnpaged, EOutcomeSuccess);

   419 	RunRealtimeTestThread(ETestRawRead, 		EAccessUnpaged, EOutcomeSuccess);

   420 	RunRealtimeTestThread(ETestRawWrite, 		EAccessUnpaged, EOutcomeSuccess);

   421 	RunRealtimeTestThread(ETestDesRead, 		EAccessUnpaged, EOutcomeSuccess);

   422 	RunRealtimeTestThread(ETestDesWrite, 		EAccessUnpaged, EOutcomeSuccess);

   423 

   424 	test.Next(_L("Test access to paged memory from realtime thread"));

   425 	if (PagedInputData)

   426 		{

   427 		RunRealtimeTestThread(ETestRawRead, 		EAccessPaged, EOutcomeRealtimePanic);

   428 		RunRealtimeTestThread(ETestDesRead, 		EAccessPaged, EOutcomeRealtimePanic);

   429 		}

   430 	if (PagedOutputData)

   431 		{

   432 		RunRealtimeTestThread(ETestRequestComplete, EAccessPaged, EOutcomeRealtimePanic);

   433 		RunRealtimeTestThread(ETestRawWrite, 		EAccessPaged, EOutcomeRealtimePanic);

   434 		RunRealtimeTestThread(ETestDesWrite, 		EAccessPaged, EOutcomeRealtimePanic);

   435 		}

   436 	

   437 	test.Next(_L("Close and free logical device"));

   438 	test_KErrNone(User::FreeLogicalDevice(KPagingExample1PreLdd));

   439 	

   440 	test.End();

   441 	}

   442 

   443 TInt E32Main()

   444 	{

   445 	test.Title();

   446 

   447 	test.Start(_L("Test device driver migration examples"));

   448 	

   449 	UnpagedInputData = (TTestData*)User::Alloc(sizeof(TTestData));

   450 	test_NotNull(UnpagedInputData);

   451 	UnpagedOutputData = (TTestData*)User::Alloc(sizeof(TTestData));

   452 	test_NotNull(UnpagedOutputData);

   453 

   454 	test_KErrNone(UserSvr::HalFunction(EHalGroupKernel,EKernelHalPageSizeInBytes,&PageSize,0));

   455 

   456 	RChunk chunk;

   457 	if (DPTest::Attributes() & DPTest::EDataPaging)

   458 		{

   459 		TChunkCreateInfo info;

   460 		TInt size = (sizeof(TTestData) + PageSize - 1) & ~(PageSize - 1);

   461 		info.SetNormal(size, size);

   462 		info.SetPaging(TChunkCreateInfo::EPaged);

   463 		test_KErrNone(chunk.Create(info));

   464 		test(chunk.IsPaged());

   465 		PagedOutputData = (TTestData*)chunk.Base();

   466 		test.Printf(_L("Using data pagd output buffer at %08x\n"), PagedOutputData);

   467 		}

   468 	

   469 	if (DPTest::Attributes() & DPTest::ERomPaging)

   470 		{

   471 		// use paged part of rom for read-only data

   472 		TRomHeader* romHeader = (TRomHeader*)UserSvr::RomHeaderAddress();

   473 		test(romHeader->iPageableRomStart);

   474 		// todo: for some reason the first part of page of paged rom doesn't seem to get paged out

   475 		// when we flush the paging cache, hence PagedInputData starts some way into this

   476 		PagedInputData = (TTestData*)((TUint8*)romHeader + romHeader->iPageableRomStart + 64 * PageSize); 

   477 		TInt romDataSize = romHeader->iPageableRomSize - 64 * PageSize;

   478 		test(romDataSize >= (TInt)sizeof(TTestData));		

   479 		test.Printf(_L("Using rom paged input data at %08x\n"), PagedInputData);

   480 		}

   481 	else if (DPTest::Attributes() & DPTest::ECodePaging)

   482 		{

   483 		// use code paged DLL for read-only buffer

   484 		test_KErrNone(PagedLibrary.Load(KTCodePagingDll4));		

   485 		TGetAddressOfDataFunction func = (TGetAddressOfDataFunction)PagedLibrary.Lookup(KGetAddressOfDataFunctionOrdinal);

   486 		TInt codeDataSize;

   487 		PagedInputData = (TTestData*)func(codeDataSize);

   488 		test_NotNull(PagedInputData);

   489 		test(codeDataSize >= (TInt)sizeof(TTestData));		

   490 		test.Printf(_L("Using code paged input data at %08x\n"), PagedInputData);

   491 		}

   492 

   493 	InitInputData(UnpagedInputData);

   494 	

   495 	TestDriver(KPagingExample1PreLdd, EFalse);

   496 	TestDriver(KPagingExample1PostLdd, ETrue);

   497 	TestDriver(KPagingExample2PreLdd, EFalse);

   498 	TestDriver(KPagingExample2PostLdd, ETrue);

   499 	TestPagedAccessInRealtimeThread();

   500 	

   501 	PagedLibrary.Close();

   502 	User::Free(UnpagedInputData);

   503 	User::Free(UnpagedOutputData);

   504 	

   505 	test.End();

   506 	return 0;

   507 	}
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