src/cpu/testers/directedtest/RubyDirectedTester.cc

   1 /*
   2  * Copyright (c) 2012 ARM Limited
   3  * All rights reserved
   4  *
   5  * The license below extends only to copyright in the software and shall
   6  * not be construed as granting a license to any other intellectual
   7  * property including but not limited to intellectual property relating
   8  * to a hardware implementation of the functionality of the software
   9  * licensed hereunder.  You may use the software subject to the license
  10  * terms below provided that you ensure that this notice is replicated
  11  * unmodified and in its entirety in all distributions of the software,
  12  * modified or unmodified, in source code or in binary form.
  13  *
  14  * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
  15  * Copyright (c) 2009-2010 Advanced Micro Devices, Inc.
  16  * All rights reserved.
  17  *
  18  * Redistribution and use in source and binary forms, with or without
  19  * modification, are permitted provided that the following conditions are
  20  * met: redistributions of source code must retain the above copyright
  21  * notice, this list of conditions and the following disclaimer;
  22  * redistributions in binary form must reproduce the above copyright
  23  * notice, this list of conditions and the following disclaimer in the
  24  * documentation and/or other materials provided with the distribution;
  25  * neither the name of the copyright holders nor the names of its
  26  * contributors may be used to endorse or promote products derived from
  27  * this software without specific prior written permission.
  28  *
  29  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  30  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  31  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  32  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  33  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  34  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  35  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  36  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  37  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  38  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  39  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  40  */
  41
  42 #include "cpu/testers/directedtest/DirectedGenerator.hh"
  43 #include "cpu/testers/directedtest/RubyDirectedTester.hh"
  44 #include "debug/DirectedTest.hh"
  45 #include "mem/ruby/eventqueue/RubyEventQueue.hh"
  46 #include "sim/sim_exit.hh"
  47
  48 RubyDirectedTester::RubyDirectedTester(const Params *p)
  49   : MemObject(p), directedStartEvent(this),
  50     m_requests_to_complete(p->requests_to_complete),
  51     generator(p->generator)
  52 {
  53     m_requests_completed = 0;
  54
  55     // create the ports
  56     for (int i = 0; i < p->port_cpuPort_connection_count; ++i) {
  57         ports.push_back(new CpuPort(csprintf("%s-port%d", name(), i),
  58                                     this, i));
  59     }
  60
  61     // add the check start event to the event queue
  62     schedule(directedStartEvent, 1);
  63 }
  64
  65 RubyDirectedTester::~RubyDirectedTester()
  66 {
  67     for (int i = 0; i < ports.size(); i++)
  68         delete ports[i];
  69 }
  70
  71 void
  72 RubyDirectedTester::init()
  73 {
  74     assert(ports.size() > 0);
  75     generator->setDirectedTester(this);
  76 }
  77
  78 Port *
  79 RubyDirectedTester::getPort(const std::string &if_name, int idx)
  80 {
  81     if (if_name != "cpuPort") {
  82         panic("RubyDirectedTester::getPort: unknown port %s requested",
  83               if_name);
  84     }
  85
  86     if (idx >= static_cast<int>(ports.size())) {
  87         panic("RubyDirectedTester::getPort: unknown index %d requested\n", idx);
  88     }
  89
  90     return ports[idx];
  91 }
  92
  93 Tick
  94 RubyDirectedTester::CpuPort::recvAtomic(PacketPtr pkt)
  95 {
  96     panic("RubyDirectedTester::CpuPort::recvAtomic() not implemented!\n");
  97     return 0;
  98 }
  99
 100 bool
 101 RubyDirectedTester::CpuPort::recvTiming(PacketPtr pkt)
 102 {
 103     tester->hitCallback(idx, pkt->getAddr());
 104
 105     //
 106     // Now that the tester has completed, delete the packet, then return
 107     //
 108     delete pkt->req;
 109     delete pkt;
 110     return true;
 111 }
 112
 113 Port*
 114 RubyDirectedTester::getCpuPort(int idx)
 115 {
 116     assert(idx >= 0 && idx < ports.size());
 117
 118     return ports[idx];
 119 }
 120
 121 void
 122 RubyDirectedTester::hitCallback(NodeID proc, Addr addr)
 123 {
 124     DPRINTF(DirectedTest,
 125             "completed request for proc: %d addr: 0x%x\n",
 126             proc,
 127             addr);
 128
 129     generator->performCallback(proc, addr);
 130     schedule(directedStartEvent, curTick());
 131 }
 132
 133 void
 134 RubyDirectedTester::wakeup()
 135 {
 136     if (m_requests_completed < m_requests_to_complete) {
 137         if (!generator->initiate()) {
 138             schedule(directedStartEvent, curTick() + 1);
 139         }
 140     } else {
 141         exitSimLoop("Ruby DirectedTester completed");
 142     }
 143 }
 144
 145 RubyDirectedTester *
 146 RubyDirectedTesterParams::create()
 147 {
 148     return new RubyDirectedTester(this);
 149 }