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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* 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 "base/intmath.hh"
#include "base/output.hh"
#include "mem/ruby/buffers/MessageBuffer.hh"
#include "mem/ruby/common/Address.hh"
#include "mem/ruby/network/Network.hh"
#include "mem/ruby/profiler/Profiler.hh"
#include "mem/ruby/recorder/Tracer.hh"
#include "mem/ruby/slicc_interface/AbstractController.hh"
#include "mem/ruby/system/MemoryVector.hh"
#include "mem/ruby/system/System.hh"
using namespace std;
int RubySystem::m_random_seed;
bool RubySystem::m_randomization;
Tick RubySystem::m_clock;
int RubySystem::m_block_size_bytes;
int RubySystem::m_block_size_bits;
uint64 RubySystem::m_memory_size_bytes;
int RubySystem::m_memory_size_bits;
Network* RubySystem::m_network_ptr;
Profiler* RubySystem::m_profiler_ptr;
Tracer* RubySystem::m_tracer_ptr;
MemoryVector* RubySystem::m_mem_vec_ptr;
RubySystem::RubySystem(const Params *p)
: SimObject(p)
{
if (g_system_ptr != NULL)
fatal("Only one RubySystem object currently allowed.\n");
m_random_seed = p->random_seed;
srandom(m_random_seed);
m_randomization = p->randomization;
m_clock = p->clock;
m_block_size_bytes = p->block_size_bytes;
assert(isPowerOf2(m_block_size_bytes));
m_block_size_bits = floorLog2(m_block_size_bytes);
m_memory_size_bytes = p->mem_size;
if (m_memory_size_bytes == 0) {
m_memory_size_bits = 0;
} else {
m_memory_size_bits = floorLog2(m_memory_size_bytes);
}
m_network_ptr = p->network;
g_debug_ptr = p->debug;
m_profiler_ptr = p->profiler;
m_tracer_ptr = p->tracer;
g_eventQueue_ptr = new RubyEventQueue(p->eventq, m_clock);
g_system_ptr = this;
if (p->no_mem_vec) {
m_mem_vec_ptr = NULL;
} else {
m_mem_vec_ptr = new MemoryVector;
m_mem_vec_ptr->resize(m_memory_size_bytes);
}
//
// Print ruby configuration and stats at exit
//
RubyExitCallback* rubyExitCB = new RubyExitCallback(p->stats_filename);
registerExitCallback(rubyExitCB);
}
void
RubySystem::init()
{
m_profiler_ptr->clearStats();
}
RubySystem::~RubySystem()
{
delete m_network_ptr;
delete m_profiler_ptr;
delete m_tracer_ptr;
if (m_mem_vec_ptr)
delete m_mem_vec_ptr;
}
void
RubySystem::printSystemConfig(ostream & out)
{
out << "RubySystem config:" << endl
<< " random_seed: " << m_random_seed << endl
<< " randomization: " << m_randomization << endl
<< " cycle_period: " << m_clock << endl
<< " block_size_bytes: " << m_block_size_bytes << endl
<< " block_size_bits: " << m_block_size_bits << endl
<< " memory_size_bytes: " << m_memory_size_bytes << endl
<< " memory_size_bits: " << m_memory_size_bits << endl;
}
void
RubySystem::printConfig(ostream& out)
{
out << "\n================ Begin RubySystem Configuration Print ================\n\n";
printSystemConfig(out);
m_network_ptr->printConfig(out);
m_profiler_ptr->printConfig(out);
out << "\n================ End RubySystem Configuration Print ================\n\n";
}
void
RubySystem::printStats(ostream& out)
{
const time_t T = time(NULL);
tm *localTime = localtime(&T);
char buf[100];
strftime(buf, 100, "%b/%d/%Y %H:%M:%S", localTime);
out << "Real time: " << buf << endl;
m_profiler_ptr->printStats(out);
m_network_ptr->printStats(out);
}
void
RubySystem::clearStats() const
{
m_profiler_ptr->clearStats();
m_network_ptr->clearStats();
}
void
RubySystem::recordCacheContents(CacheRecorder& tr) const
{
}
#ifdef CHECK_COHERENCE
// This code will check for cases if the given cache block is exclusive in
// one node and shared in another-- a coherence violation
//
// To use, the SLICC specification must call sequencer.checkCoherence(address)
// when the controller changes to a state with new permissions. Do this
// in setState. The SLICC spec must also define methods "isBlockShared"
// and "isBlockExclusive" that are specific to that protocol
//
void
RubySystem::checkGlobalCoherenceInvariant(const Address& addr)
{
#if 0
NodeID exclusive = -1;
bool sharedDetected = false;
NodeID lastShared = -1;
for (int i = 0; i < m_chip_vector.size(); i++) {
if (m_chip_vector[i]->isBlockExclusive(addr)) {
if (exclusive != -1) {
// coherence violation
WARN_EXPR(exclusive);
WARN_EXPR(m_chip_vector[i]->getID());
WARN_EXPR(addr);
WARN_EXPR(g_eventQueue_ptr->getTime());
ERROR_MSG("Coherence Violation Detected -- 2 exclusive chips");
} else if (sharedDetected) {
WARN_EXPR(lastShared);
WARN_EXPR(m_chip_vector[i]->getID());
WARN_EXPR(addr);
WARN_EXPR(g_eventQueue_ptr->getTime());
ERROR_MSG("Coherence Violation Detected -- exclusive chip with >=1 shared");
} else {
exclusive = m_chip_vector[i]->getID();
}
} else if (m_chip_vector[i]->isBlockShared(addr)) {
sharedDetected = true;
lastShared = m_chip_vector[i]->getID();
if (exclusive != -1) {
WARN_EXPR(lastShared);
WARN_EXPR(exclusive);
WARN_EXPR(addr);
WARN_EXPR(g_eventQueue_ptr->getTime());
ERROR_MSG("Coherence Violation Detected -- exclusive chip with >=1 shared");
}
}
}
#endif
}
#endif
RubySystem *
RubySystemParams::create()
{
return new RubySystem(this);
}
/**
* virtual process function that is invoked when the callback
* queue is executed.
*/
void
RubyExitCallback::process()
{
std::ostream *os = simout.create(stats_filename);
RubySystem::printConfig(*os);
*os << endl;
RubySystem::printStats(*os);
}
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