1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/kernelhwsrv/kernel/eka/memmodel/epoc/direct/minit.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,103 @@
     1.4 +// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of the License "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +// e32\memmodel\epoc\direct\minit.cpp
    1.18 +// 
    1.19 +//
    1.20 +
    1.21 +#include <memmodel.h>
    1.22 +#include "cache_maintenance.h"
    1.23 +
    1.24 +_LIT(KLitRamAlloc,"RamAlloc");
    1.25 +
    1.26 +const TInt KMaxSupervisorStackSpace=0x200000;
    1.27 +
    1.28 +void M::Init1()
    1.29 +	{
    1.30 +	__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("M::Init1"));
    1.31 +	MM::UserDataSectionBase=TheRomHeader().iUserDataAddress;
    1.32 +	MM::UserRomDataSectionEnd=TheRomHeader().iUserDataAddress+TheRomHeader().iTotalUserDataSize;
    1.33 +	MM::UserDataSectionEnd = TheSuperPage().iRamBase + TheSuperPage().iTotalRamSize;
    1.34 +
    1.35 +	__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("MM::UserDataSectionBase=%08x",MM::UserDataSectionBase));
    1.36 +	__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("MM::UserRomDataSectionEnd=%08x",MM::UserRomDataSectionEnd));
    1.37 +	__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("MM::UserDataSectionEnd=%08x",MM::UserDataSectionEnd));
    1.38 +
    1.39 +	// Memory model dependent CPU stuff
    1.40 +	MM::Init1();
    1.41 +
    1.42 +	// Set up cache info
    1.43 +	CacheMaintenance::Init1();
    1.44 +	}
    1.45 +
    1.46 +void M::Init2()
    1.47 +	{
    1.48 +	__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("M::Init2"));
    1.49 +	TInt userRam=MM::UserDataSectionEnd-MM::UserDataSectionBase;
    1.50 +	TInt blocks=userRam>>MM::RamBlockShift;
    1.51 +	MM::RamAllocator=TBitMapAllocator::New(blocks,ETrue);
    1.52 +	if (!MM::RamAllocator)
    1.53 +		MM::Panic(MM::ERamAllocCreateFailed);
    1.54 +	TInt used_blocks=(MM::UserRomDataSectionEnd-MM::UserDataSectionBase)>>MM::RamBlockShift;
    1.55 +	if (used_blocks)
    1.56 +		MM::RamAllocator->Alloc(0,used_blocks);
    1.57 +	__KTRACE_OPT(KBOOT,Kern::Printf("%d blocks, %d used",blocks,used_blocks));
    1.58 +	TInt r=K::MutexCreate((DMutex*&)MM::RamAllocatorMutex, KLitRamAlloc, NULL, EFalse, KMutexOrdRamAlloc);
    1.59 +	if (r!=KErrNone)
    1.60 +		MM::Panic(MM::ERamAllocMutexCreateFailed);
    1.61 +	const SRamBank* banks = (const SRamBank*)TheSuperPage().iRamBootData;
    1.62 +	TInt nBanks = 0;
    1.63 +	TInt maxBankBlocks = 0;
    1.64 +	TInt bnum = 0;
    1.65 +	const SRamBank* pB = banks;
    1.66 +	for (; pB->iSize; ++nBanks, ++pB)
    1.67 +		{
    1.68 +		TInt nblocks = pB->iSize >> MM::RamBlockShift;
    1.69 +		TInt abnum = bnum &~ 31;
    1.70 +		TInt a_end = (bnum + nblocks + 31)&~31;
    1.71 +		TInt a_count = a_end - abnum;
    1.72 +		if (a_count > maxBankBlocks)
    1.73 +			maxBankBlocks = a_count;
    1.74 +		bnum += (pB->iSize >> MM::RamBlockShift);
    1.75 +		}
    1.76 +	__KTRACE_OPT(KBOOT,Kern::Printf("%d banks, max bank blocks %08x", nBanks, maxBankBlocks));
    1.77 +	if (nBanks>1)
    1.78 +		{
    1.79 +		MM::SecondaryAllocator = TBitMapAllocator::New(maxBankBlocks, ETrue);
    1.80 +		if (!MM::SecondaryAllocator)
    1.81 +			MM::Panic(MM::ESecAllocCreateFailed);
    1.82 +		}
    1.83 +	}
    1.84 +
    1.85 +void M::Init3()
    1.86 +	{
    1.87 +	// Third phase MMU initialisation
    1.88 +	}
    1.89 +
    1.90 +TInt M::InitSvHeapChunk(DChunk* aChunk, TInt aSize)
    1.91 +	{
    1.92 +	DMemModelChunk* pC=(DMemModelChunk*)aChunk;
    1.93 +	TLinAddr base = TheRomHeader().iKernDataAddress;
    1.94 +	K::HeapInfo.iChunk = aChunk;
    1.95 +	K::HeapInfo.iBase = (TUint8*)base;
    1.96 +	K::HeapInfo.iMaxSize = pC->MaxSize();
    1.97 +	pC->SetFixedAddress(base, aSize);
    1.98 +	__KTRACE_OPT(KBOOT,Kern::Printf("Created SvHeap chunk, addr %08X, init size %08X max size %08X",pC->Base(),aSize,pC->MaxSize()));
    1.99 +	return KErrNone;
   1.100 +	}
   1.101 +
   1.102 +TInt M::InitSvStackChunk()
   1.103 +	{
   1.104 +	return KErrNone;
   1.105 +	}
   1.106 +