sl@0: // Copyright (c) 1998-2009 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: // e32\include\memmodel\epoc\plat_priv.h
sl@0: // 
sl@0: // WARNING: This file contains some APIs which are internal and are subject
sl@0: //          to change without notice. Such APIs should therefore not be used
sl@0: //          outside the Kernel and Hardware Services package.
sl@0: //
sl@0: 
sl@0: #ifndef __M32KERN_H__
sl@0: #define __M32KERN_H__
sl@0: #include <kernel/kern_priv.h>
sl@0: #include <platform.h>
sl@0: #include <e32def_private.h>
sl@0: 
sl@0: /** Hardware Variant Discriminator
sl@0: 
sl@0: @internalTechnology
sl@0: */
sl@0: class THardwareVariant
sl@0: 	{
sl@0: public:
sl@0: 	inline THardwareVariant();
sl@0: 	inline THardwareVariant(TUint aVariant);
sl@0: 	inline operator TUint();
sl@0: 	inline TBool IsIndependent();
sl@0: 	inline TBool IsCpu();
sl@0: 	inline TBool IsCompatibleWith(TUint aCpu, TUint aAsic, TUint aVMask);
sl@0: private:
sl@0: 	inline TUint Layer();
sl@0: 	inline TUint Parent();
sl@0: 	inline TUint VMask();
sl@0: private:
sl@0: 	TUint iVariant;
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline THardwareVariant::THardwareVariant()
sl@0: 	{iVariant=0x01000000;}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline THardwareVariant::THardwareVariant(TUint aVariant)
sl@0: 	{iVariant=aVariant;}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline THardwareVariant::operator TUint()
sl@0: 	{return iVariant;}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline TUint THardwareVariant::Layer()
sl@0: 	{return iVariant>>24;}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline TUint THardwareVariant::Parent()
sl@0: 	{return (iVariant>>16)&0xff;}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline TUint THardwareVariant::VMask()
sl@0: 	{return iVariant&0xffff;}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline TBool THardwareVariant::IsIndependent()
sl@0: 	{return (Layer()<=3);}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline TBool THardwareVariant::IsCpu()
sl@0: 	{return (Parent()==3);}
sl@0: 
sl@0: /**
sl@0: @internalTechnology
sl@0: */
sl@0: inline TBool THardwareVariant::IsCompatibleWith(TUint aCpu, TUint aAsic, TUint aVMask)
sl@0: 	{ return(Layer()<=3 || (Parent()==3 && Layer()==aCpu) ||
sl@0: 		(Layer()==aAsic && (VMask() & aVMask)!=0) );}
sl@0: 
sl@0: 
sl@0: /** Functions/Data defined in layer 2 or below of the kernel and not available to layer 1.
sl@0: 
sl@0: @internalComponent
sl@0: */
sl@0: class PP
sl@0: 	{
sl@0: public:
sl@0: 	enum TPlatPanic
sl@0: 		{
sl@0: 		EInitialSystemTimeInvalid=0,
sl@0: 		EInvalidStartupReason=1,
sl@0: 		EIncorrectDllDataAddress=2,
sl@0: 		ENoDllDataChunk=3,
sl@0: 		EUnsupportedOldBinary=4,
sl@0:     	};
sl@0: 
sl@0: 	static void Panic(TPlatPanic aPanic);
sl@0: 	static void InitSuperPageFromRom(TLinAddr aRomHeader, TLinAddr aSuperPage);
sl@0: public:
sl@0: 	static TInt RamDriveMaxSize;
sl@0: 	static TInt RamDriveRange;
sl@0: 	static TUint32 NanoWaitCal;
sl@0: 	static DChunk* TheRamDriveChunk;
sl@0: 	static TLinAddr RamDriveStartAddress;
sl@0: 	static TInt MaxUserThreadStack;
sl@0: 	static TInt UserThreadStackGuard;
sl@0: 	static TInt MaxStackSpacePerProcess;
sl@0: 	static TInt SupervisorThreadStackGuard;
sl@0: 	static TUint32 MonitorEntryPoint[3];
sl@0: 	static TLinAddr RomRootDirAddress;
sl@0: public:
sl@0: 	};
sl@0: 
sl@0: extern "C" {
sl@0: extern TLinAddr RomHeaderAddress;
sl@0: }
sl@0: 
sl@0: /********************************************
sl@0:  * Code segment
sl@0:  ********************************************/
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: struct SRamCodeInfo
sl@0: 	{
sl@0: 	TInt iCodeSize;
sl@0: 	TInt iTextSize;
sl@0: 	TLinAddr iCodeRunAddr;
sl@0: 	TLinAddr iCodeLoadAddr;
sl@0: 	TInt iDataSize;
sl@0: 	TInt iBssSize;
sl@0: 	TLinAddr iDataRunAddr;
sl@0: 	TLinAddr iDataLoadAddr;
sl@0: 	TInt iConstOffset; // not used
sl@0: 	TLinAddr iExportDir;
sl@0: 	TInt iExportDirCount;
sl@0: 	TLinAddr iExceptionDescriptor;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: class DEpocCodeSeg;
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: class DEpocCodeSegMemory : public DBase
sl@0: 	{
sl@0: public:
sl@0: 	static DEpocCodeSegMemory* New(DEpocCodeSeg* aCodeSeg);
sl@0: 	TInt Open();
sl@0: 	TInt Close();
sl@0: protected:
sl@0: 	DEpocCodeSegMemory(DEpocCodeSeg* aCodeSeg);
sl@0: public:
sl@0: 	TInt iAccessCount;
sl@0: 	SRamCodeInfo iRamInfo;
sl@0: 	DEpocCodeSeg* iCodeSeg;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: class DEpocCodeSeg : public DCodeSeg
sl@0: 	{
sl@0: public:
sl@0: 	virtual ~DEpocCodeSeg();
sl@0: 	void Destruct();
sl@0: public:
sl@0: 	virtual void Info(TCodeSegCreateInfo& aInfo);
sl@0: 	virtual TLibraryFunction Lookup(TInt aOrdinal);
sl@0: 	virtual TInt GetMemoryInfo(TModuleMemoryInfo& aInfo, DProcess* aProcess);
sl@0: 	virtual TInt DoCreate(TCodeSegCreateInfo& aInfo, DProcess* aProcess);
sl@0: 	virtual void InitData();
sl@0: 	virtual TInt Loaded(TCodeSegCreateInfo& aInfo);
sl@0: 	virtual TInt DoCreateRam(TCodeSegCreateInfo& aInfo, DProcess* aProcess)=0;
sl@0: 	virtual TInt DoCreateXIP(DProcess* aProcess)=0;
sl@0: public:
sl@0: 	inline SRamCodeInfo& RamInfo()
sl@0: 		{return *(SRamCodeInfo*)iInfo;}
sl@0: 	inline const TRomImageHeader& RomInfo()
sl@0: 		{return *(const TRomImageHeader*)iInfo;}
sl@0: 	void GetDataSizeAndBase(TInt& aTotalDataSizeOut, TLinAddr& aDataBaseOut);
sl@0: public:
sl@0: 	TUint8 iXIP;		// TRUE for XIP ROM code
sl@0: 	const TAny* iInfo;	// pointer to TRomImageHeader or SRamCodeInfo
sl@0: 	DEpocCodeSegMemory* iMemory;
sl@0: 	TCodeSegLoaderCookieList* iLoaderCookie;
sl@0: 	};
sl@0: 
sl@0: /********************************************
sl@0:  * Process control block
sl@0:  ********************************************/
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: class DEpocProcess : public DProcess
sl@0: 	{
sl@0: public:
sl@0: 	virtual TInt AttachExistingCodeSeg(TProcessCreateInfo& aInfo);
sl@0: 	};
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: inline const TRomHeader& TheRomHeader()
sl@0: 	{return *((const TRomHeader *)RomHeaderAddress);}
sl@0: 
sl@0: #endif