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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 // e32test\nkernsa\x86\x86utils.cpp |
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15 // |
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16 // |
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17 |
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18 #include <x86.h> |
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19 #include <nktest/nkutils.h> |
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20 |
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21 extern "C" { |
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22 |
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23 void __fastcall thread_request_signal(NThread* aThread); |
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24 |
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25 TUint64 fcf; |
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26 TUint32 nfcf; |
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27 TUint32 nfcfs; |
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28 |
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29 |
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30 TUint32 round_to_page(TUint32 x) |
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31 { |
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32 return (x + KPageSize - 1) &~ (KPageSize - 1); |
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33 } |
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34 |
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35 |
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36 TLinAddr __initial_stack_base() |
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37 { |
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38 return __stack_pointer() & ~0xfff; |
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39 } |
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40 |
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41 TInt __initial_stack_size() |
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42 { |
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43 return 0x1000; |
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44 } |
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45 |
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46 TUint64 fast_counter_freq() |
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47 { |
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48 return fcf; |
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49 } |
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50 |
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51 TUint32 norm_fast_counter_freq() |
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52 { |
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53 return nfcf; |
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54 } |
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55 |
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56 void init_fast_counter() |
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57 { |
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58 NKern::Sleep(2); |
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59 TUint64 initial = fast_counter(); |
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60 NKern::Sleep(1000); |
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61 TUint64 final = fast_counter(); |
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62 fcf = final - initial; |
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63 TUint64 f = fcf; |
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64 nfcfs = 0; |
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65 while (f > 2000000) |
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66 f>>=1, ++nfcfs; |
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67 nfcf = (TUint32)(fcf >> nfcfs); |
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68 |
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69 DEBUGPRINT("fcf=%lx",fcf); |
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70 DEBUGPRINT("nfcf=%d",nfcf); |
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71 } |
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72 |
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73 TInt __microseconds_to_fast_counter(TInt us) |
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74 { |
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75 TUint64 x = TUint64(TUint32(us)); |
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76 x *= fcf; |
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77 x += TUint64(500000); |
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78 x /= TUint64(1000000); |
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79 |
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80 return (TInt)x; |
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81 } |
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82 |
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83 TInt __microseconds_to_norm_fast_counter(TInt us) |
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84 { |
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85 TUint64 x = TUint64(TUint32(us)); |
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86 x *= nfcf; |
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87 x += TUint64(500000); |
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88 x /= TUint64(1000000); |
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89 |
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90 return (TInt)x; |
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91 } |
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92 |
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93 extern TUint32 __eflags(); |
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94 void CheckPoint() |
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95 { |
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96 KPrintf("EFLAGS=%08x", __eflags()); |
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97 } |
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98 |
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99 void __fastcall thread_request_signal(NThread* aThread) |
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100 { |
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101 NKern::ThreadRequestSignal(aThread); |
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102 } |
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103 } |