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// Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of the License "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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// e32\include\memmodel\epoc\direct\memmodel.h
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//
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// WARNING: This file contains some APIs which are internal and are subject
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// to change without notice. Such APIs should therefore not be used
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// outside the Kernel and Hardware Services package.
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//
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#ifndef __MEMMODEL_H__
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#define __MEMMODEL_H__
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#include <plat_priv.h>
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/********************************************
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* Process Control Block
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********************************************/
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class DMemModelChunk;
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/**
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@internalComponent
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*/
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class DMemModelProcess : public DEpocProcess
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{
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public:
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void Destruct();
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public:
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virtual TInt DoCreate(TBool aKernelProcess, TProcessCreateInfo& aInfo);
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virtual TInt NewChunk(DChunk*& aChunk, SChunkCreateInfo& anInfo, TLinAddr& aRunAddr);
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virtual TInt AddChunk(DChunk* aChunk,TBool isReadOnly);
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virtual TInt NewShPool(DShPool*& aPool, TShPoolCreateInfo& aInfo);
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virtual TInt CreateDataBssStackArea(TProcessCreateInfo& aInfo);
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virtual TInt MapCodeSeg(DCodeSeg* aCodeSeg);
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virtual void UnmapCodeSeg(DCodeSeg* aCodeSeg);
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virtual void RemoveDllData();
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virtual void FinalRelease();
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public:
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friend class Monitor;
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};
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/********************************************
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* Chunk Control Block
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********************************************/
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/**
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@internalComponent
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*/
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class DMemModelChunk : public DChunk
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{
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public:
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enum TMemModelChunkAttributes
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{
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EPrivate=0x10000000,
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EMMChunkAttributesMask = EPrivate,
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};
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public:
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~DMemModelChunk();
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public:
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// virtual TInt Close(TAny* aPtr);
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virtual TInt DoCreate(SChunkCreateInfo& anInfo);
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virtual TInt Adjust(TInt aNewSize);
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virtual TInt AdjustDoubleEnded(TInt aBottom, TInt aTop);
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virtual TInt CheckAccess();
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virtual TInt Commit(TInt anOffset, TInt aSize, TCommitType aCommitType=DChunk::ECommitDiscontiguous, TUint32* aExtraArg=0);
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virtual TInt Allocate(TInt aSize, TInt aGuard=0, TInt aAlign=0);
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virtual TInt Decommit(TInt anOffset, TInt aSize);
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virtual TInt Lock(TInt anOffset, TInt aSize);
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virtual TInt Unlock(TInt anOffset, TInt aSize);
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virtual TInt Address(TInt aOffset, TInt aSize, TLinAddr& aKernelAddress);
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virtual TInt PhysicalAddress(TInt aOffset, TInt aSize, TLinAddr& aKernelAddress, TUint32& aPhysicalAddress, TUint32* aPhysicalPageList=NULL);
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virtual void BTracePrime(TInt aCategory);
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virtual void Substitute(TInt aOffset, TPhysAddr aOldAddr, TPhysAddr aNewAddr);
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virtual TUint8* Base(DProcess* aProcess);
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inline TUint8* Base() const { return DChunk::Base(); }
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public:
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void SetFixedAddress(TLinAddr anAddr, TInt aSize);
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public:
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TLinAddr iRegionBase;
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TInt iRegionSize;
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public:
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friend class Monitor;
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};
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/********************************************
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* Code segment
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********************************************/
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/**
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@internalComponent
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*/
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class DMemModelCodeSegMemory : public DEpocCodeSegMemory
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{
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public:
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DMemModelCodeSegMemory(DEpocCodeSeg* aCodeSeg);
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};
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/**
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@internalComponent
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*/
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class DMemModelCodeSeg: public DEpocCodeSeg
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{
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public:
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DMemModelCodeSeg();
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virtual ~DMemModelCodeSeg();
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virtual TInt DoCreateRam(TCodeSegCreateInfo& aInfo, DProcess* aProcess);
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virtual TInt DoCreateXIP(DProcess* aProcess);
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virtual TInt Loaded(TCodeSegCreateInfo& aInfo);
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virtual void ReadExportDir(TUint32* aDest);
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virtual TBool FindCheck(DProcess* aProcess);
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virtual TBool OpenCheck(DProcess* aProcess);
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public:
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TLinAddr iDataAlloc;
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TAny* iKernelData; // only for kernel modules
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};
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/********************************************
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* Functions/Data defined in memory model
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********************************************/
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/**
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@internalComponent
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*/
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class MM
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{
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public:
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enum TMemModelPanic
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{
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ERamAllocCreateFailed=0,
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ERamAllocMutexCreateFailed=1,
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EFreeInvalidRegion=2,
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ECodeSegCheckInconsistent=3,
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ESecAllocCreateFailed=4,
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EUnsupportedOperation=5,
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};
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static void Panic(TMemModelPanic aPanic);
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public:
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static void Init1();
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static void StartCrashDebugger();
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static void WaitRamAlloc();
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static void SignalRamAlloc();
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static TUint32 RoundToBlockSize(TUint32 aSize);
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static void FreeRegion(TLinAddr aBase, TInt aSize);
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static TInt AllocRegion(TLinAddr& aBase, TInt aSize, TInt aAlign=0);
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static TInt ClaimRegion(TLinAddr aBase, TInt aSize);
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static TInt AllocContiguousRegion(TLinAddr& aBase, TInt aSize, TInt aAlign=0);
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static TInt BlockNumber(TPhysAddr aAddr);
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public:
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static TLinAddr UserDataSectionBase;
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static TLinAddr UserRomDataSectionEnd;
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static TLinAddr UserDataSectionEnd;
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static TLinAddr RomLinearBase;
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static DMutex* RamAllocatorMutex;
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static TBitMapAllocator* RamAllocator;
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static TBitMapAllocator* SecondaryAllocator;
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static TInt RamBlockSize;
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static TInt RamBlockShift;
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static TInt InitialFreeMemory;
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static TBool AllocFailed;
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};
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#endif
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