sl@0
|
1 |
// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).
|
sl@0
|
2 |
// All rights reserved.
|
sl@0
|
3 |
// This component and the accompanying materials are made available
|
sl@0
|
4 |
// under the terms of the License "Eclipse Public License v1.0"
|
sl@0
|
5 |
// which accompanies this distribution, and is available
|
sl@0
|
6 |
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
sl@0
|
7 |
//
|
sl@0
|
8 |
// Initial Contributors:
|
sl@0
|
9 |
// Nokia Corporation - initial contribution.
|
sl@0
|
10 |
//
|
sl@0
|
11 |
// Contributors:
|
sl@0
|
12 |
//
|
sl@0
|
13 |
// Description:
|
sl@0
|
14 |
// e32\memmodel\epoc\direct\minit.cpp
|
sl@0
|
15 |
//
|
sl@0
|
16 |
//
|
sl@0
|
17 |
|
sl@0
|
18 |
#include <memmodel.h>
|
sl@0
|
19 |
#include "cache_maintenance.h"
|
sl@0
|
20 |
|
sl@0
|
21 |
_LIT(KLitRamAlloc,"RamAlloc");
|
sl@0
|
22 |
|
sl@0
|
23 |
const TInt KMaxSupervisorStackSpace=0x200000;
|
sl@0
|
24 |
|
sl@0
|
25 |
void M::Init1()
|
sl@0
|
26 |
{
|
sl@0
|
27 |
__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("M::Init1"));
|
sl@0
|
28 |
MM::UserDataSectionBase=TheRomHeader().iUserDataAddress;
|
sl@0
|
29 |
MM::UserRomDataSectionEnd=TheRomHeader().iUserDataAddress+TheRomHeader().iTotalUserDataSize;
|
sl@0
|
30 |
MM::UserDataSectionEnd = TheSuperPage().iRamBase + TheSuperPage().iTotalRamSize;
|
sl@0
|
31 |
|
sl@0
|
32 |
__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("MM::UserDataSectionBase=%08x",MM::UserDataSectionBase));
|
sl@0
|
33 |
__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("MM::UserRomDataSectionEnd=%08x",MM::UserRomDataSectionEnd));
|
sl@0
|
34 |
__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("MM::UserDataSectionEnd=%08x",MM::UserDataSectionEnd));
|
sl@0
|
35 |
|
sl@0
|
36 |
// Memory model dependent CPU stuff
|
sl@0
|
37 |
MM::Init1();
|
sl@0
|
38 |
|
sl@0
|
39 |
// Set up cache info
|
sl@0
|
40 |
CacheMaintenance::Init1();
|
sl@0
|
41 |
}
|
sl@0
|
42 |
|
sl@0
|
43 |
void M::Init2()
|
sl@0
|
44 |
{
|
sl@0
|
45 |
__KTRACE_OPT2(KBOOT,KMMU,Kern::Printf("M::Init2"));
|
sl@0
|
46 |
TInt userRam=MM::UserDataSectionEnd-MM::UserDataSectionBase;
|
sl@0
|
47 |
TInt blocks=userRam>>MM::RamBlockShift;
|
sl@0
|
48 |
MM::RamAllocator=TBitMapAllocator::New(blocks,ETrue);
|
sl@0
|
49 |
if (!MM::RamAllocator)
|
sl@0
|
50 |
MM::Panic(MM::ERamAllocCreateFailed);
|
sl@0
|
51 |
TInt used_blocks=(MM::UserRomDataSectionEnd-MM::UserDataSectionBase)>>MM::RamBlockShift;
|
sl@0
|
52 |
if (used_blocks)
|
sl@0
|
53 |
MM::RamAllocator->Alloc(0,used_blocks);
|
sl@0
|
54 |
__KTRACE_OPT(KBOOT,Kern::Printf("%d blocks, %d used",blocks,used_blocks));
|
sl@0
|
55 |
TInt r=K::MutexCreate((DMutex*&)MM::RamAllocatorMutex, KLitRamAlloc, NULL, EFalse, KMutexOrdRamAlloc);
|
sl@0
|
56 |
if (r!=KErrNone)
|
sl@0
|
57 |
MM::Panic(MM::ERamAllocMutexCreateFailed);
|
sl@0
|
58 |
const SRamBank* banks = (const SRamBank*)TheSuperPage().iRamBootData;
|
sl@0
|
59 |
TInt nBanks = 0;
|
sl@0
|
60 |
TInt maxBankBlocks = 0;
|
sl@0
|
61 |
TInt bnum = 0;
|
sl@0
|
62 |
const SRamBank* pB = banks;
|
sl@0
|
63 |
for (; pB->iSize; ++nBanks, ++pB)
|
sl@0
|
64 |
{
|
sl@0
|
65 |
TInt nblocks = pB->iSize >> MM::RamBlockShift;
|
sl@0
|
66 |
TInt abnum = bnum &~ 31;
|
sl@0
|
67 |
TInt a_end = (bnum + nblocks + 31)&~31;
|
sl@0
|
68 |
TInt a_count = a_end - abnum;
|
sl@0
|
69 |
if (a_count > maxBankBlocks)
|
sl@0
|
70 |
maxBankBlocks = a_count;
|
sl@0
|
71 |
bnum += (pB->iSize >> MM::RamBlockShift);
|
sl@0
|
72 |
}
|
sl@0
|
73 |
__KTRACE_OPT(KBOOT,Kern::Printf("%d banks, max bank blocks %08x", nBanks, maxBankBlocks));
|
sl@0
|
74 |
if (nBanks>1)
|
sl@0
|
75 |
{
|
sl@0
|
76 |
MM::SecondaryAllocator = TBitMapAllocator::New(maxBankBlocks, ETrue);
|
sl@0
|
77 |
if (!MM::SecondaryAllocator)
|
sl@0
|
78 |
MM::Panic(MM::ESecAllocCreateFailed);
|
sl@0
|
79 |
}
|
sl@0
|
80 |
}
|
sl@0
|
81 |
|
sl@0
|
82 |
void M::Init3()
|
sl@0
|
83 |
{
|
sl@0
|
84 |
// Third phase MMU initialisation
|
sl@0
|
85 |
}
|
sl@0
|
86 |
|
sl@0
|
87 |
TInt M::InitSvHeapChunk(DChunk* aChunk, TInt aSize)
|
sl@0
|
88 |
{
|
sl@0
|
89 |
DMemModelChunk* pC=(DMemModelChunk*)aChunk;
|
sl@0
|
90 |
TLinAddr base = TheRomHeader().iKernDataAddress;
|
sl@0
|
91 |
K::HeapInfo.iChunk = aChunk;
|
sl@0
|
92 |
K::HeapInfo.iBase = (TUint8*)base;
|
sl@0
|
93 |
K::HeapInfo.iMaxSize = pC->MaxSize();
|
sl@0
|
94 |
pC->SetFixedAddress(base, aSize);
|
sl@0
|
95 |
__KTRACE_OPT(KBOOT,Kern::Printf("Created SvHeap chunk, addr %08X, init size %08X max size %08X",pC->Base(),aSize,pC->MaxSize()));
|
sl@0
|
96 |
return KErrNone;
|
sl@0
|
97 |
}
|
sl@0
|
98 |
|
sl@0
|
99 |
TInt M::InitSvStackChunk()
|
sl@0
|
100 |
{
|
sl@0
|
101 |
return KErrNone;
|
sl@0
|
102 |
}
|
sl@0
|
103 |
|