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

    15 // 

    16 //

    17 

    18 #include "arm_mem.h"

    19 #include <e32uid.h>

    20 #include <kernel/cache.h>

    21 

    22 void MM::Init1()

    23 	{

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

    25 

    26 	MM::RamBlockSize=0x1000;

    27 	MM::RamBlockShift=12;

    28 

    29 	PP::MaxUserThreadStack=0x14000;			// 80K - STDLIB asks for 64K for PosixServer!!!!

    30 	PP::UserThreadStackGuard=0x2000;		// 8K

    31 	PP::MaxStackSpacePerProcess=0x200000;	// 2Mb

    32 	K::SupervisorThreadStackSize=0x1000;	// 4K

    33 	PP::SupervisorThreadStackGuard=0x1000;	// 4K

    34 

    35 	K::MachineConfig=(TMachineConfig*)(((TUint8*)SuperPageAddress)+0x800);	// HACK!!

    36 	K::MaxMemCopyInOneGo = KDefaultMaxMemCopyInOneGo;

    37 	PP::RamDriveStartAddress = TheSuperPage().iKernelLimit;

    38 	PP::RamDriveMaxSize = TheRomHeader().iUserDataAddress - PP::RamDriveStartAddress;

    39 

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

    41 

    42 #ifdef __CPU_ARM_USE_DOMAINS

    43 	Arm::DefaultDomainAccess=Arm::Dacr();

    44 #endif

    45 

    46 	K::MemModelAttributes=EMemModelTypeDirect|EMemModelAttrNonExProt|EMemModelAttrKernProt|

    47 							EMemModelAttrWriteProt|EMemModelAttrSvKernProt;

    48 

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

    50 	}

    51 

    52 #ifdef __CPU_HAS_CACHE

    53 // Set up virtual addresses used for cache flushing if this is

    54 // done by data read or line allocate

    55 void M::SetupCacheFlushPtr(TInt aCache, SCacheInfo& aInfo)

    56 	{

    57 #if defined(__CPU_CACHE_FLUSH_BY_DATA_READ) || defined(__CPU_CACHE_FLUSH_BY_LINE_ALLOC)

    58 #ifdef __CPU_HAS_ALT_D_CACHE

    59 	if (aCache==KCacheNumAltD)

    60 		{

    61 		aInfo.iFlushPtr=TheSuperPage().iAltDCacheFlushArea;

    62 		aInfo.iFlushMask=TheSuperPage().iAltDCacheFlushWrap;

    63 		}

    64 #endif

    65 	if (aCache==KCacheNumD)

    66 		{

    67 		aInfo.iFlushPtr=TheSuperPage().iDCacheFlushArea;

    68 		aInfo.iFlushMask=TheSuperPage().iDCacheFlushWrap;

    69 		}

    70 #endif

    71 	}

    72 #endif

    73 

    74 #ifdef __SMP__

    75 void M::GetAPBootInfo(TInt aCpu, volatile SAPBootInfo* aInfo)

    76 	{

    77 	volatile SArmAPBootInfo& info = *(volatile SArmAPBootInfo*)aInfo;

    78 	TSubScheduler& ss = SubScheduler();

    79 	TUint32 delta = aCpu*0x2000;

    80 	info.iInitR13Fiq = TLinAddr(ss.i_FiqStackTop) + delta;

    81 	info.iInitR13Irq = TLinAddr(ss.i_IrqStackTop) + delta;

    82 	info.iInitR13Abt = TLinAddr(ss.i_AbtStackTop) + delta;

    83 	info.iInitR13Und = TLinAddr(ss.i_UndStackTop) + delta;

    84 	}

    85 

    86 void M::Init2AP()

    87 	{

    88 	__KTRACE_OPT(KBOOT,Kern::Printf("M::Init2AP()"));

    89 	}

    90 #endif