c86f849d5a
This patch rpovides functional access support in Ruby. Currently only the M5Port of RubyPort supports functional accesses. The support for functional through the PioPort will be added as a separate patch.
136 lines
4.0 KiB
C++
136 lines
4.0 KiB
C++
/*
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* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/cprintf.hh"
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#include "mem/ruby/eventqueue/RubyEventQueue.hh"
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#include "mem/ruby/recorder/TraceRecord.hh"
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#include "mem/ruby/recorder/Tracer.hh"
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#include "mem/ruby/system/System.hh"
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using namespace std;
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Tracer::Tracer(const Params *p)
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: SimObject(p)
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{
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m_enabled = false;
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m_warmup_length = p->warmup_length;
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assert(m_warmup_length > 0);
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p->ruby_system->registerTracer(this);
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}
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void
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Tracer::startTrace(string filename)
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{
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if (m_enabled)
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stopTrace();
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if (filename != "") {
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m_trace_file.open(filename.c_str());
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if (m_trace_file.fail()) {
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cprintf("Error: error opening file '%s'\n", filename);
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cprintf("Trace not enabled.\n");
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return;
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}
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cprintf("Request trace enabled to output file '%s'\n", filename);
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m_enabled = true;
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}
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}
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void
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Tracer::stopTrace()
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{
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if (m_enabled) {
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m_trace_file.close();
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cout << "Request trace file closed." << endl;
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m_enabled = false;
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}
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}
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void
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Tracer::traceRequest(Sequencer* sequencer, const Address& data_addr,
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const Address& pc_addr, RubyRequestType type, Time time)
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{
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assert(m_enabled);
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TraceRecord tr(sequencer, data_addr, pc_addr, type, time);
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tr.output(m_trace_file);
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}
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int
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Tracer::playbackTrace(string filename)
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{
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igzstream in(filename.c_str());
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if (in.fail()) {
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cprintf("Error: error opening file '%s'\n", filename);
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return 0;
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}
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time_t start_time = time(NULL);
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TraceRecord record;
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int counter = 0;
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// Read in the next TraceRecord
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bool ok = record.input(in);
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while (ok) {
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// Put it in the right cache
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record.issueRequest();
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counter++;
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// Read in the next TraceRecord
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ok = record.input(in);
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// Clear the statistics after warmup
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if (counter == m_warmup_length) {
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cprintf("Clearing stats after warmup of length %s\n",
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m_warmup_length);
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g_system_ptr->clearStats();
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}
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}
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// Flush the prefetches through the system
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// FIXME - should be smarter
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g_eventQueue_ptr->triggerEvents(g_eventQueue_ptr->getTime() + 1000);
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time_t stop_time = time(NULL);
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double seconds = difftime(stop_time, start_time);
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double minutes = seconds / 60.0;
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cout << "playbackTrace: " << minutes << " minutes" << endl;
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return counter;
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}
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void
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Tracer::print(ostream& out) const
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{
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}
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Tracer *
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RubyTracerParams::create()
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{
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return new Tracer(this);
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}
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