// Copyright (c) 1996-2009 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:
// e32\memmodel\epoc\direct\arm\xinit.cpp
// 
//

#include "arm_mem.h"
#include <e32uid.h>
#include <kernel/cache.h>

void MM::Init1()
	{
	__KTRACE_OPT(KBOOT,Kern::Printf("MM::Init1()"));

	MM::RamBlockSize=0x1000;
	MM::RamBlockShift=12;

	PP::MaxUserThreadStack=0x14000;			// 80K - STDLIB asks for 64K for PosixServer!!!!
	PP::UserThreadStackGuard=0x2000;		// 8K
	PP::MaxStackSpacePerProcess=0x200000;	// 2Mb
	K::SupervisorThreadStackSize=0x1000;	// 4K
	PP::SupervisorThreadStackGuard=0x1000;	// 4K

	K::MachineConfig=(TMachineConfig*)(((TUint8*)SuperPageAddress)+0x800);	// HACK!!
	K::MaxMemCopyInOneGo = KDefaultMaxMemCopyInOneGo;
	PP::RamDriveStartAddress = TheSuperPage().iKernelLimit;
	PP::RamDriveMaxSize = TheRomHeader().iUserDataAddress - PP::RamDriveStartAddress;

	__KTRACE_OPT(KBOOT,Kern::Printf("RamDriveBase %08x RamDriveMaxSize %08x",PP::RamDriveStartAddress,PP::RamDriveMaxSize));

#ifdef __CPU_ARM_USE_DOMAINS
	Arm::DefaultDomainAccess=Arm::Dacr();
#endif

	K::MemModelAttributes=EMemModelTypeDirect|EMemModelAttrNonExProt|EMemModelAttrKernProt|
							EMemModelAttrWriteProt|EMemModelAttrSvKernProt;

	__KTRACE_OPT(KBOOT,Kern::Printf("K::MaxMemCopyInOneGo=0x%x",K::MaxMemCopyInOneGo));
	}

#ifdef __CPU_HAS_CACHE
// Set up virtual addresses used for cache flushing if this is
// done by data read or line allocate
void M::SetupCacheFlushPtr(TInt aCache, SCacheInfo& aInfo)
	{
#if defined(__CPU_CACHE_FLUSH_BY_DATA_READ) || defined(__CPU_CACHE_FLUSH_BY_LINE_ALLOC)
#ifdef __CPU_HAS_ALT_D_CACHE
	if (aCache==KCacheNumAltD)
		{
		aInfo.iFlushPtr=TheSuperPage().iAltDCacheFlushArea;
		aInfo.iFlushMask=TheSuperPage().iAltDCacheFlushWrap;
		}
#endif
	if (aCache==KCacheNumD)
		{
		aInfo.iFlushPtr=TheSuperPage().iDCacheFlushArea;
		aInfo.iFlushMask=TheSuperPage().iDCacheFlushWrap;
		}
#endif
	}
#endif

#ifdef __SMP__
void M::GetAPBootInfo(TInt aCpu, volatile SAPBootInfo* aInfo)
	{
	volatile SArmAPBootInfo& info = *(volatile SArmAPBootInfo*)aInfo;
	TSubScheduler& ss = SubScheduler();
	TUint32 delta = aCpu*0x2000;
	info.iInitR13Fiq = TLinAddr(ss.i_FiqStackTop) + delta;
	info.iInitR13Irq = TLinAddr(ss.i_IrqStackTop) + delta;
	info.iInitR13Abt = TLinAddr(ss.i_AbtStackTop) + delta;
	info.iInitR13Und = TLinAddr(ss.i_UndStackTop) + delta;
	}

void M::Init2AP()
	{
	__KTRACE_OPT(KBOOT,Kern::Printf("M::Init2AP()"));
	}
#endif