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libraries/onchipcommunication/systemc/PtP.hGo to the documentation of this file.00001 //============================================================================ 00002 // Author : Alessandro Pinto <apinto@eecs.berkeley.edu> 00003 // University of California, Berkeley 00004 // 545 Cory Hall, Berkeley, CA 94720 00005 // Copyright : See COPYING file that comes with this distribution 00006 //============================================================================ 00007 00008 #include "systemc.h" 00009 #include <stdio.h> 00010 #include <stdlib.h> 00011 #include <math.h> 00012 #include "Technology.h" 00013 00014 #ifndef _PTPCONNECTION_H_ 00015 #define _PTPCONNECTION_H_ 00016 00019 00020 00035 template<int FlitWidth> 00036 class PtP : public sc_module 00037 { 00038 public: 00041 00043 sc_in< sc_bv< FlitWidth > > DataIn; 00044 sc_in< bool > ValidIn ; 00045 sc_out< bool > AckOut ; 00046 sc_out< bool > FullOut ; 00047 00048 00050 sc_out< sc_bv< FlitWidth > > DataOut; 00051 sc_out< bool > ValidOut ; 00052 sc_in< bool > AckIn ; 00053 sc_in< bool > FullIn ; 00054 00055 00056 00057 SC_HAS_PROCESS( PtP ); 00058 00061 00064 PtP( sc_module_name n, 00065 TechnologyNode tech, 00066 int layer, 00067 double length ) : sc_module( n ), 00068 _tech( tech ), 00069 _layer( layer ), 00070 _length( length ) { 00071 00072 00073 SC_THREAD( Transfer ) ; 00074 sensitive << DataIn << ValidIn << AckIn << FullIn ; 00075 00076 } 00077 00078 double GetDynamicPower( ) { 00079 return ( total_sw_energy / ( sc_simulation_time( ) * 10e-9) ) ; 00080 } 00081 00082 double GetLeakagePower( ) { 00083 return ( total_leak_energy / ( sc_simulation_time( ) * 10e-9) ) ; 00084 } 00085 00086 void Transfer( ) ; 00087 00088 TechnologyNode _tech ; 00089 int _layer ; 00090 double _length ; 00091 00092 double total_sw_energy; 00093 double total_sc_energy; 00094 double total_leak_energy; 00095 double total_energy; 00096 00097 private: 00098 sc_bv< FlitWidth > _prev_word ; 00099 bool _prev_valid ; 00100 bool _prev_ack ; 00101 bool _prev_full ; 00102 double _prev_time ; 00103 00104 }; 00105 00106 template< int FlitWidth > 00107 void PtP<FlitWidth>::Transfer( ) 00108 { 00109 double _delay, _tau; 00110 double _e_switching, _e_leakage, _e_sc ; 00111 00112 sc_bv< FlitWidth > _curr_word ; 00113 00114 while (true) 00115 { 00116 00117 wait( ) ; 00118 00119 if ( _prev_valid != ValidIn ) { 00120 total_sw_energy = total_sw_energy + _tech.Edyn*_length ; 00121 total_energy = total_sw_energy ; 00122 _prev_valid = ValidIn ; 00123 ValidOut = ValidIn ; 00124 } 00125 00126 if ( _prev_ack != AckIn ) { 00127 total_sw_energy = total_sw_energy + _tech.Edyn*_length ; 00128 total_energy = total_sw_energy ; 00129 _prev_ack = AckIn ; 00130 AckOut = AckIn ; 00131 } 00132 00133 if ( _prev_full != FullIn ) { 00134 total_sw_energy = total_sw_energy + _tech.Edyn*_length ; 00135 total_energy = total_sw_energy ; 00136 _prev_full = FullIn ; 00137 FullOut = FullIn ; 00138 } 00139 00140 _curr_word = DataIn ; 00141 if ( _prev_word != _curr_word ) { 00142 00143 00144 00145 //charge delay 00146 //wait( _delay , SC_SEC ); 00147 00148 //compute energy 00149 00150 00151 for( int i = 0 ; i < FlitWidth ; i ++ ) 00152 { 00153 if ( _curr_word[i] != _prev_word[i] ) 00154 { 00155 total_sw_energy = total_sw_energy + _tech.Edyn*_length ; 00156 total_energy = total_sw_energy ; 00157 } 00158 } 00159 00160 _prev_word = _curr_word ; 00161 00162 _prev_time = (double)sc_simulation_time( ); 00163 00164 DataOut = _curr_word; 00165 } 00166 } 00167 }; 00168 00169 00170 #endif Generated on Sun Sep 7 18:37:42 2008 for COSI by  1.5.4
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