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Diffstat (limited to 'src/cpu/rubytest/RubyTester.cc')
| -rw-r--r-- | src/cpu/rubytest/RubyTester.cc | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/src/cpu/rubytest/RubyTester.cc b/src/cpu/rubytest/RubyTester.cc new file mode 100644 index 000000000..547b0eb17 --- /dev/null +++ b/src/cpu/rubytest/RubyTester.cc @@ -0,0 +1,202 @@ + +/* + * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood + * Copyright (c) 2009 Advanced Micro Devices, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "mem/ruby/common/Global.hh" +#include "mem/ruby/system/System.hh" +#include "cpu/rubytest/RubyTester.hh" +#include "mem/ruby/eventqueue/RubyEventQueue.hh" +#include "mem/ruby/common/SubBlock.hh" +#include "cpu/rubytest/Check.hh" +#include "sim/sim_exit.hh" + +RubyTester::RubyTester(const Params *p) + : MemObject(p), + checkStartEvent(this), + m_checks_to_complete(p->checks_to_complete), + m_deadlock_threshold(p->deadlock_threshold), + m_wakeup_frequency(p->wakeup_frequency) +{ + m_checks_completed = 0; + + // add the check start event to the event queue + schedule(checkStartEvent, 1); + +} + +RubyTester::~RubyTester() +{ + delete m_checkTable_ptr; + for (int i = 0; i < ports.size(); i++) { + delete ports[i]; + } +} + +void RubyTester::init() +{ + assert(ports.size() > 0); + + m_last_progress_vector.setSize(ports.size()); + for (int i = 0; i < m_last_progress_vector.size(); i++) { + m_last_progress_vector[i] = 0; + } + + m_num_cpu_sequencers = ports.size(); + + m_checkTable_ptr = new CheckTable(m_num_cpu_sequencers, this); +} + +Port * +RubyTester::getPort(const std::string &if_name, int idx) +{ + + if (if_name != "cpuPort") { + panic("RubyTester::getPort: unknown port %s requested", if_name); + } + + if (idx >= (int)ports.size()) { + ports.resize(idx + 1); + } + + if (ports[idx] != NULL) { + panic("RubyTester::getPort: port %d already assigned", idx); + } + + CpuPort *port = new CpuPort(csprintf("%s-port%d", name(), idx), this, idx); + + ports[idx] = port; + return port; +} + +Tick +RubyTester::CpuPort::recvAtomic(PacketPtr pkt) +{ + panic("RubyTester::CpuPort::recvAtomic() not implemented!\n"); + return 0; +} + +bool +RubyTester::CpuPort::recvTiming(PacketPtr pkt) +{ + // + // retrieve the subblock and call hitCallback + // + RubyTester::SenderState* senderState = + safe_cast<RubyTester::SenderState*>(pkt->senderState); + SubBlock* subblock = senderState->subBlock; + assert(subblock != NULL); + + // pop the sender state from the packet + pkt->senderState = senderState->saved; + + tester->hitCallback(idx, subblock); + + // + // Now that the tester has completed, delete the senderState + // (includes sublock) and the packet, then return + // + delete senderState; + delete pkt->req; + delete pkt; + return true; +} + +Port* +RubyTester::getCpuPort(int idx) +{ + assert(idx >= 0 && idx < ports.size()); + + return ports[idx]; +} + +void RubyTester::hitCallback(NodeID proc, SubBlock* data) +{ + // Mark that we made progress + m_last_progress_vector[proc] = g_eventQueue_ptr->getTime(); + + DPRINTF(RubyTest, "completed request for proc: %d\n", proc); + DPRINTF(RubyTest, + "addr: 0x%x, size: %d, data: ", + data->getAddress(), + data->getSize()); + for (int byte = 0; byte < data->getSize(); byte++) { + DPRINTF(RubyTest, "%d", data->getByte(byte)); + } + DPRINTF(RubyTest, "\n"); + + // + // This tells us our store has 'completed' or for a load gives us + // back the data to make the check + // + Check* check_ptr = m_checkTable_ptr->getCheck(data->getAddress()); + assert(check_ptr != NULL); + check_ptr->performCallback(proc, data); +} + +void RubyTester::wakeup() +{ + if (m_checks_completed < m_checks_to_complete) { + // Try to perform an action or check + Check* check_ptr = m_checkTable_ptr->getRandomCheck(); + assert(check_ptr != NULL); + check_ptr->initiate(); + + checkForDeadlock(); + + schedule(checkStartEvent, curTick + m_wakeup_frequency); + } else { + exitSimLoop("Ruby Tester completed"); + } +} + +void RubyTester::checkForDeadlock() +{ + int size = m_last_progress_vector.size(); + Time current_time = g_eventQueue_ptr->getTime(); + for (int processor = 0; processor < size; processor++) { + if ((current_time - m_last_progress_vector[processor]) > m_deadlock_threshold) { + WARN_EXPR(current_time); + WARN_EXPR(m_last_progress_vector[processor]); + WARN_EXPR(current_time - m_last_progress_vector[processor]); + WARN_EXPR(processor); + ERROR_MSG("Deadlock detected."); + } + } +} + +void RubyTester::print(ostream& out) const +{ + out << "[RubyTester]" << endl; +} + +RubyTester * +RubyTesterParams::create() +{ + return new RubyTester(this); +} |