GarnetSyntheticTraffic.hh revision 11661
1/* 2 * Copyright (c) 2016 Georgia Institute of Technology 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Tushar Krishna 29 */ 30 31#ifndef __CPU_GARNET_SYNTHETIC_TRAFFIC_HH__ 32#define __CPU_GARNET_SYNTHETIC_TRAFFIC_HH__ 33 34#include <set> 35 36#include "base/statistics.hh" 37#include "mem/mem_object.hh" 38#include "mem/port.hh" 39#include "params/GarnetSyntheticTraffic.hh" 40#include "sim/eventq.hh" 41#include "sim/sim_exit.hh" 42#include "sim/sim_object.hh" 43#include "sim/stats.hh" 44 45enum TrafficType {BIT_COMPLEMENT_ = 0, 46 BIT_REVERSE_ = 1, 47 BIT_ROTATION_ = 2, 48 NEIGHBOR_ = 3, 49 SHUFFLE_ = 4, 50 TORNADO_ = 5, 51 TRANSPOSE_ = 6, 52 UNIFORM_RANDOM_ = 7, 53 NUM_TRAFFIC_PATTERNS_}; 54 55class Packet; 56class GarnetSyntheticTraffic : public MemObject 57{ 58 public: 59 typedef GarnetSyntheticTrafficParams Params; 60 GarnetSyntheticTraffic(const Params *p); 61 62 virtual void init(); 63 64 // main simulation loop (one cycle) 65 void tick(); 66 67 virtual BaseMasterPort &getMasterPort(const std::string &if_name, 68 PortID idx = InvalidPortID); 69 70 /** 71 * Print state of address in memory system via PrintReq (for 72 * debugging). 73 */ 74 void printAddr(Addr a); 75 76 protected: 77 class TickEvent : public Event 78 { 79 private: 80 GarnetSyntheticTraffic *cpu; 81 82 public: 83 TickEvent(GarnetSyntheticTraffic *c) : Event(CPU_Tick_Pri), cpu(c) {} 84 void process() { cpu->tick(); } 85 virtual const char *description() const 86 { 87 return "GarnetSyntheticTraffic tick"; 88 } 89 }; 90 91 TickEvent tickEvent; 92 93 class CpuPort : public MasterPort 94 { 95 GarnetSyntheticTraffic *tester; 96 97 public: 98 99 CpuPort(const std::string &_name, GarnetSyntheticTraffic *_tester) 100 : MasterPort(_name, _tester), tester(_tester) 101 { } 102 103 protected: 104 105 virtual bool recvTimingResp(PacketPtr pkt); 106 107 virtual void recvReqRetry(); 108 }; 109 110 CpuPort cachePort; 111 112 class GarnetSyntheticTrafficSenderState : public Packet::SenderState 113 { 114 public: 115 /** Constructor. */ 116 GarnetSyntheticTrafficSenderState(uint8_t *_data) 117 : data(_data) 118 { } 119 120 // Hold onto data pointer 121 uint8_t *data; 122 }; 123 124 PacketPtr retryPkt; 125 unsigned size; 126 int id; 127 128 std::map<std::string, TrafficType> trafficStringToEnum; 129 130 unsigned blockSizeBits; 131 132 Tick noResponseCycles; 133 134 int numDestinations; 135 Tick simCycles; 136 int numPacketsMax; 137 int numPacketsSent; 138 int singleSender; 139 int singleDest; 140 141 std::string trafficType; // string 142 TrafficType traffic; // enum from string 143 double injRate; 144 int injVnet; 145 int precision; 146 147 const Cycles responseLimit; 148 149 MasterID masterId; 150 151 void completeRequest(PacketPtr pkt); 152 153 void generatePkt(); 154 void sendPkt(PacketPtr pkt); 155 void initTrafficType(); 156 157 void doRetry(); 158 159 friend class MemCompleteEvent; 160}; 161 162#endif // __CPU_GARNET_SYNTHETIC_TRAFFIC_HH__ 163 164 165 166