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1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32\include\memmodel\epoc\mmubase\mmubase.inl |
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15 // |
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16 // |
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17 |
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18 #ifndef __MMUBASE_INL__ |
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19 #define __MMUBASE_INL__ |
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20 |
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21 #include <mmboot.h> |
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22 |
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23 const TInt KPageInfosPerPageShift = KPageShift-KPageInfoShift; |
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24 const TInt KPageInfosPerPage = 1<<KPageInfosPerPageShift; |
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25 const TInt KNumPageInfoPagesShift = 32-KPageShift-KPageInfosPerPageShift; |
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26 const TInt KNumPageInfoPages = 1<<KNumPageInfoPagesShift; |
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27 |
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28 inline SPageInfo* SPageInfo::FromPhysAddr(TPhysAddr aAddress) |
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29 { |
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30 return ((SPageInfo*)KPageInfoLinearBase)+(aAddress>>KPageShift); |
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31 } |
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32 |
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33 inline TPhysAddr SPageInfo::PhysAddr() |
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34 { |
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35 return ((TPhysAddr)this)<<KPageInfosPerPageShift; |
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36 } |
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37 |
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38 |
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39 // |
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40 // M class implementations of ram allocator and defrag methods |
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41 // Make these inline as they are just memory model independent interface |
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42 // for the ram allocator and defrag classes. |
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43 // |
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44 |
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45 inline TInt M::PageShift() |
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46 { |
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47 return KPageShift; |
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48 } |
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49 |
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50 |
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51 inline void M::RamAllocLock() |
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52 { |
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53 MmuBase::Wait(); |
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54 } |
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55 |
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56 |
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57 inline void M::RamAllocUnlock() |
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58 { |
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59 MmuBase::Signal(); |
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60 } |
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61 |
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62 |
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63 inline void M::RamAllocIsLocked() |
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64 { |
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65 #ifdef _DEBUG |
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66 if (!K::Initialising) |
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67 __ASSERT_MUTEX(MmuBase::RamAllocatorMutex); |
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68 #endif |
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69 } |
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70 |
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71 |
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72 inline TUint M::NumberOfFreeDpPages() |
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73 { |
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74 return Mmu::Get().NumberOfFreeDpPages(); |
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75 } |
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76 |
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77 |
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78 inline TUint M::NumberOfDirtyDpPages() |
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79 {// This memory model doesn't support data paging so can't get dirty paged pages. |
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80 return 0; |
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81 } |
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82 |
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83 |
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84 inline TInt M::MovePage(TPhysAddr aOld, TPhysAddr& aNew, TUint aBlockZoneId, TBool aBlockRest) |
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85 { |
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86 return Mmu::Get().MovePage(aOld, aNew, aBlockZoneId, aBlockRest); |
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87 } |
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88 |
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89 |
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90 inline TInt M::DiscardPage(TPhysAddr aAddr, TUint aBlockZoneId, TBool aBlockRest) |
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91 { |
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92 return Mmu::Get().DiscardPage(aAddr, aBlockZoneId, aBlockRest); |
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93 } |
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94 #endif |
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95 |
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96 |