src/cpu/testers/networktest/networktest.hh

   1 /*
   2  * Copyright (c) 2009 Advanced Micro Devices, Inc.
   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_NETWORKTEST_NETWORKTEST_HH__
  32 #define __CPU_NETWORKTEST_NETWORKTEST_HH__
  33
  34 #include <set>
  35
  36 #include "base/fast_alloc.hh"
  37 #include "base/statistics.hh"
  38 #include "mem/mem_object.hh"
  39 #include "mem/port.hh"
  40 #include "params/NetworkTest.hh"
  41 #include "sim/eventq.hh"
  42 #include "sim/sim_exit.hh"
  43 #include "sim/sim_object.hh"
  44 #include "sim/stats.hh"
  45
  46 class Packet;
  47 class NetworkTest : public MemObject
  48 {
  49   public:
  50     typedef NetworkTestParams Params;
  51     NetworkTest(const Params *p);
  52
  53     virtual void init();
  54
  55     inline Tick ticks(int numCycles) const { return numCycles; }
  56
  57     // main simulation loop (one cycle)
  58     void tick();
  59
  60     virtual MasterPort &getMasterPort(const std::string &if_name,
  61                                       int idx = -1);
  62
  63     /**
  64      * Print state of address in memory system via PrintReq (for
  65      * debugging).
  66      */
  67     void printAddr(Addr a);
  68
  69   protected:
  70     class TickEvent : public Event
  71     {
  72       private:
  73         NetworkTest *cpu;
  74
  75       public:
  76         TickEvent(NetworkTest *c) : Event(CPU_Tick_Pri), cpu(c) {}
  77         void process() { cpu->tick(); }
  78         virtual const char *description() const { return "NetworkTest tick"; }
  79     };
  80
  81     TickEvent tickEvent;
  82
  83     class CpuPort : public MasterPort
  84     {
  85         NetworkTest *networktest;
  86
  87       public:
  88
  89         CpuPort(const std::string &_name, NetworkTest *_networktest)
  90             : MasterPort(_name, _networktest), networktest(_networktest)
  91         { }
  92
  93       protected:
  94
  95         virtual bool recvTiming(PacketPtr pkt);
  96
  97         virtual Tick recvAtomic(PacketPtr pkt);
  98
  99         virtual void recvFunctional(PacketPtr pkt);
 100
 101         virtual void recvRetry();
 102     };
 103
 104     CpuPort cachePort;
 105
 106     class NetworkTestSenderState : public Packet::SenderState, public FastAlloc
 107     {
 108       public:
 109         /** Constructor. */
 110         NetworkTestSenderState(uint8_t *_data)
 111             : data(_data)
 112         { }
 113
 114         // Hold onto data pointer
 115         uint8_t *data;
 116     };
 117
 118     PacketPtr retryPkt;
 119     unsigned size;
 120     int id;
 121
 122     unsigned blockSizeBits;
 123
 124     Tick noResponseCycles;
 125
 126     int numMemories;
 127     Tick simCycles;
 128     bool fixedPkts;
 129     int maxPackets;
 130     int numPacketsSent;
 131
 132     int trafficType;
 133     double injRate;
 134     int precision;
 135
 136     MasterID masterId;
 137
 138     void completeRequest(PacketPtr pkt);
 139
 140     void generatePkt();
 141     void sendPkt(PacketPtr pkt);
 142
 143     void doRetry();
 144
 145     friend class MemCompleteEvent;
 146 };
 147
 148 #endif // __CPU_NETWORKTEST_NETWORKTEST_HH__
 149
 150
 151