kernel/eka/memmodel/epoc/direct/arm/xinit.cpp
author Mike Kinghan <mikek@symbian.org>
Tue, 16 Nov 2010 14:39:21 +0000
branchGCC_SURGE
changeset 303 9b85206a602c
parent 90 947f0dc9f7a8
child 257 3e88ff8f41d5
permissions -rw-r--r--
We need a way to pass flags to rombuilds in Raptor via extension flm interfaces, so that the CPP pass of the rom input files can be informed what toolchain we are building with and conditionally include or exclude files depending on whether the toolchain could build them.

// 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.iSSX.iFiqStackTop) + delta;
	info.iInitR13Irq = TLinAddr(ss.iSSX.iIrqStackTop) + delta;
	info.iInitR13Abt = TLinAddr(ss.iSSX.iAbtStackTop) + delta;
	info.iInitR13Und = TLinAddr(ss.iSSX.iUndStackTop) + delta;
	}

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