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1 /*
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2 * Copyright 2009 OpenSourceStewardshipFoundation.org
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3 * Licensed under GNU General Public License version 2
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4 *
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5 * Author: seanhalle@yahoo.com
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6 *
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7 */
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8
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9 #ifndef _VMS_H
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10 #define _VMS_H
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11
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12 #include "VMS_primitive_data_types.h"
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13 #include "Queue_impl/BlockingQueue.h"
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14 #include <windows.h>
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15
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16 //This value is the number of hardware threads in the shared memory
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17 // machine -- make double that number scheduling slots, plus extra for master
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18 #define NUM_CORES 4
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19 #define NUM_SCHED_SLOTS 9
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20
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21 #define SUCCESS 0
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22
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23 #define thdAttrs NULL
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24
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25 typedef struct _WorkUnit WorkUnit;
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26 typedef struct _VirtProcr VirtProcr;
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27 typedef struct _SlaveReqst SlaveReqst;
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28 typedef struct _SchedSlot SchedSlot;
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29
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30 typedef bool8 (*SlaveScheduler) ( SchedSlot *, void * );
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31 typedef void (*RequestHandler) ( SlaveReqst * );
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32 typedef void (*VirtProcrFnPtr) ( void *, VirtProcr * );
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33 typedef void VirtProcrFn( void *, VirtProcr * );
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34
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35 typedef struct
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36 {
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37 void *endThdPt;
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38 unsigned int coreNum;
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39 }
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40 ThdParams;
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41
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42 struct _SchedSlot
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43 {
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44 int workIsDone;
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45 int needsProcrAssigned;
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46 VirtProcr *procrAssignedToSlot;
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47 };
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48
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49
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50 struct _VirtProcr
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51 {
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52 void *stackPtr;
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53 void *framePtr;
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54 void *nextInstrPt;
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55 void *coreLoopStartPt; //allows proto-runtime to be linked later
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56
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57 void *initialData;
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58
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59 SchedSlot *schedSlot;
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60 SlaveReqst *requests;
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61
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62 void *semanticData;
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63 };
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64
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65
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66 //When optimize make a separate flat array in here for each flag in SchedSlot
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67 //So that polling done flags is fast.. not sure even worth it, though..
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68 typedef struct
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69 {
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70 SlaveScheduler slaveScheduler;
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71 RequestHandler requestHandler;
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72
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73 SchedSlot **schedSlots;
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74 SchedSlot **filledSlots;
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75 int numFilled;
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76
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77 int stillRunning;
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78
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79 VirtProcr *masterVirtPr;
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80 void *semanticEnv;
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81 void *OSEventStruc; //for future, when add I/O to BLIS
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82 }
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83 MasterEnv;
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84
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85
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86
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87 struct _SlaveReqst
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88 {
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89 VirtProcr *slaveFrom;
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90 int reqType; //for future when have I/O and OS services
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91 void *semReqData;
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92
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93 SlaveReqst *nextRequest;
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94 };
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95
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96
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97 DWORD WINAPI coreLoop( LPVOID paramsIn );
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98 //void * coreLoop( void *paramsIn ); //standard PThreads fn prototype
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99 void masterLoop( void *initData, VirtProcr *masterPr );
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100
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101
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102 //===================== Global Vars ===================
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103
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104
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105 HANDLE coreLoopThds[ NUM_CORES ]; //windows handle to thread
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106 ThdParams *thdParams[ NUM_CORES ];
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107 DWORD thdIds[ NUM_CORES ];
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108
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109 volatile MasterEnv *_VMSMasterEnv;
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110
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111 //workQ is global, static, and volatile so that core loop has its location
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112 // hard coded, and reloads every time through the loop -- that way don't
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113 // need to save any regs used by core loop (will see if this really works)
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114 volatile QueueStruc *_VMSWorkQ;
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115
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116 //==========================
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117 void
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118 VMS__init();
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119
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120 void
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121 VMS__start();
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122
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123 VirtProcr *
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124 VMS__create_procr( VirtProcrFnPtr fnPtr, void *initialData );
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125
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126 inline void
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127 VMS__send_sem_request( void *semReqData, VirtProcr *callingPr );
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128
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129 void
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130 VMS__suspend_processor( VirtProcr *callingPr );
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131
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132
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133 #endif /* _VMS_H */
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134
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