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-rw-r--r--src/mem/ruby/tester/RaceyPseudoThread.cc351
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diff --git a/src/mem/ruby/tester/RaceyPseudoThread.cc b/src/mem/ruby/tester/RaceyPseudoThread.cc
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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.
- */
-
-/*
- * Description: see RaceyPseudoThread.h
- */
-
-#include <cassert>
-
-#include "mem/ruby/tester/RaceyPseudoThread.hh"
-#include "mem/ruby/tester/RaceyDriver.hh"
-#include "gzstream.hh"
-
-RaceyPseudoThread::RaceyPseudoThread(NodeID id, RaceyDriver& driver)
- : m_driver(driver), m_proc_id(id) {
-
- resetIC(); // IC contains the committed instruction number
- m_last_progress = 0;
- m_done = false;
- m_stop = 0;
- m_driver.eventQueue->scheduleEvent(this, 1);
-}
-
-RaceyPseudoThread::~RaceyPseudoThread() {
-}
-
-void RaceyPseudoThread::checkForDeadlock() {
- Time current_time = m_driver.eventQueue->getTime();
- if(!m_done && (current_time - m_last_progress) > g_DEADLOCK_THRESHOLD) {
- panic("Deadlock detected: m_proc_id: %d m_ic_counter: %d "
- "m_last_progress: %d\n",
- m_proc_id, m_ic_counter, m_last_progress);
- }
-}
-
-void RaceyPseudoThread::performCallback(int proc, Address address, uint8_t * data ) {
- assert(proc == m_proc_id);
-
- DPRINTF(RubyTester, "proc: %d, address: %s\n", proc, address);
-
- m_last_progress = m_driver.eventQueue->getTime();
-
- if(m_read) {
- int b0, b1, b2, b3;
- b0 = data[0]; b0 <<= 0;
- b1 = data[1]; b1 <<= 8;
- b2 = data[2]; b2 <<= 16;
- b3 = data[3]; b3 <<= 24;
- m_value = b0 | b1 | b2 | b3;
- } else {
- char b0, b1, b2, b3;
- b0 = (m_value>>0)&0xFF; data[0] = b0;
- b1 = (m_value>>8)&0xFF; data[1] = b1;
- b2 = (m_value>>16)&0xFF; data[2] = b2;
- b3 = (m_value>>24)&0xFF; data[3] = b3;
- }
-
- // schedule wakeup for next requests in next cycle
- m_driver.eventQueue->scheduleEvent(this, 1);
-
- // new instruction
- m_ic_counter++;
-
-}
-
-void RaceyPseudoThread::wakeup() {
- // for debug
- if(m_stop != 0) {
- cout << m_proc_id << " " << m_stop << ((m_read)? " read ":" written ") << m_value;
- if(0) cout << " [" << m_driver.eventQueue->getTime() << "]";
- cout << endl;
- }
-
- assert(!m_done);
-
- // Note, this function can not have ANY local variable!
-
- switch(m_stop) {
- case 0:
- break;
- case 1:
- goto L1;
- case 2:
- goto L2;
- case 3:
- goto L3;
- case 4:
- goto L4;
- case 5:
- goto L5;
- case 6:
- goto L6;
- case 7:
- goto L7;
- case 8:
- goto L8;
- case 9:
- goto L9;
- case 10:
- goto L10;
- default:
- fatal("RaceyPseudoThread: Bad context point %u!", m_stop);
- }
-
- //
- // initialization
- //
- if(m_proc_id == 0) {
- for(m_looper = 0; m_looper < m_driver.m_num_procs; m_looper++) {
- store_sig(m_looper, m_looper+1);
- m_stop = 6; return;
-L6: {};
- }
- for(m_looper = 0; m_looper < M_ELEM; m_looper++) {
- store_m(m_looper, M_ELEM-m_looper);
- m_stop = 7; return;
-L7: {};
- }
-
- // init done
- m_initialized = true;
- } else {
- // other processors
- if(!m_driver.Thread0Initialized()) {
- // wait for processors 0
- m_driver.eventQueue->scheduleEvent(this, 1);
- return;
- }
- }
-
- cout << "Thread " << m_proc_id << " started in parallel phase" << endl;
-
- //
- // main thread body
- //
- for(m_looper = 0 ; m_looper < m_driver.m_tester_length; m_looper++) {
- /* m_value = */ load_sig(m_proc_id);
- m_stop = 1; return;
-L1: {};
- m_num = m_value;
- m_index1 = m_num%M_ELEM;
- /* m_value = */ load_m(m_index1);
- m_stop = 2; return;
-L2: {};
- m_num = mix(m_num, m_value);
- m_index2 = m_num%M_ELEM;
- /* m_value = */ load_m(m_index2);
- m_stop = 3; return;
-L3: {};
- m_num = mix(m_num, m_value);
- store_m(m_index2, m_num);
- m_stop = 4; return;
-L4: {};
- store_sig(m_proc_id, m_num);
- m_stop = 5; return;
-L5: {};
- } // end for
-
- //
- // compute final sig
- //
- if(m_proc_id == 0) {
- // wait for other threads
- while (m_driver.runningThreads() > 1) {
- m_driver.registerThread0Wakeup();
- m_stop = 10; return;
-L10: {};
- }
-
- /* m_value = */ load_sig(0);
- m_stop = 8; return;
-L8: {};
- m_final_sig = m_value;
- for(m_looper = 1; m_looper < m_driver.m_num_procs; m_looper++) {
- /* m_value = */ load_sig(m_looper);
- m_stop = 9; return;
-L9: {};
- m_final_sig = mix(m_value, m_final_sig);
- }
- } // processors 0
-
- // done
- m_driver.joinThread();
- m_done = true;
-}
-
-void RaceyPseudoThread::load_sig(unsigned index) {
- cout << m_proc_id << " : load_sig " << index << endl;
-
- m_read = true;
- // timestamp, threadid, action, and logical address are used only by transactional memory, should be augmented
- uint8_t * read_data = new uint8_t[4];
-
- char name [] = "Sequencer_";
- char port_name [13];
- sprintf(port_name, "%s%d", name, m_proc_id);
-
- // pc is zero, problem?
- int64_t request_id = libruby_issue_request(libruby_get_port_by_name(port_name), RubyRequest(sig(index), read_data, 4, 0, RubyRequestType_LD, RubyAccessMode_User));
-
- assert(m_driver.requests.find(request_id) == m_driver.requests.end());
-
- struct address_data request_data;
- request_data.address = Address(sig(index));
- request_data.data = read_data;
- m_driver.requests.insert(make_pair(request_id, make_pair(m_proc_id, request_data)));
-
- /*sequencer()->makeRequest(CacheMsg(Address(sig(index)), Address(sig(index)), CacheRequestType_LD,
- Address(physical_address_t(1)),
- AccessModeType_UserMode, 4,
- PrefetchBit_No, 0, Address(0),
- 0, 0 , false)); */
-}
-
-void RaceyPseudoThread::load_m(unsigned index) {
- // cout << m_proc_id << " : load_m " << index << endl;
-
- m_read = true;
- uint8_t * read_data = new uint8_t[4];
-
- char name [] = "Sequencer_";
- char port_name [13];
- sprintf(port_name, "%s%d", name, m_proc_id);
-
- // pc is zero, problem?
- int64_t request_id = libruby_issue_request(libruby_get_port_by_name(port_name), RubyRequest(m(index), read_data, 4, 0, RubyRequestType_LD, RubyAccessMode_User));
-
- assert(m_driver.requests.find(request_id) == m_driver.requests.end());
-
- struct address_data request_data;
- request_data.address = Address(m(index));
- request_data.data = read_data;
- m_driver.requests.insert(make_pair(request_id, make_pair(m_proc_id, request_data)));
-
- /*sequencer()->makeRequest(CacheMsg(Address(m(index)), Address(m(index)), CacheRequestType_LD,
- Address(physical_address_t(1)),
- AccessModeType_UserMode, 4,
- PrefetchBit_No, 0, Address(0),
- 0, 0, false)); */
-}
-
-void RaceyPseudoThread::store_sig(unsigned index, unsigned value) {
- cout << m_proc_id << " : store_sig " << index << " " << value << endl;
-
- m_read = false;
- m_value = value;
- uint8_t * write_data = new uint8_t[4];
-
-
- memcpy(write_data, &value, 4);
-
- char name [] = "Sequencer_";
- char port_name [13];
- sprintf(port_name, "%s%d", name, m_proc_id);
-
- // pc is zero, problem?
- int64_t request_id = libruby_issue_request(libruby_get_port_by_name(port_name), RubyRequest(sig(index), write_data, 4, 0, RubyRequestType_ST, RubyAccessMode_User));
-
- assert(m_driver.requests.find(request_id) == m_driver.requests.end());
-
- struct address_data request_data;
- request_data.address = Address(sig(index));
- request_data.data = write_data;
- m_driver.requests.insert(make_pair(request_id, make_pair(m_proc_id, request_data)));
-
- /*sequencer()->makeRequest(CacheMsg(Address(sig(index)), Address(sig(index)), CacheRequestType_ST,
- Address(physical_address_t(1)),
- AccessModeType_UserMode, 4,
- PrefetchBit_No, 0, Address(0),
- 0, 0, false)); */
-}
-
-void RaceyPseudoThread::store_m(unsigned index, unsigned value) {
- //cout << m_proc_id << " : store_m " << index << endl;
-
- m_read = false;
- m_value = value;
- uint8_t * write_data = new uint8_t[4];
- memcpy(write_data, &value, 4);
-
- char name [] = "Sequencer_";
- char port_name [13];
- sprintf(port_name, "%s%d", name, m_proc_id);
-
- // pc is zero, problem?
- int64_t request_id = libruby_issue_request(libruby_get_port_by_name(port_name), RubyRequest(m(index), write_data, 4, 0, RubyRequestType_ST, RubyAccessMode_User));
-
- assert(m_driver.requests.find(request_id) == m_driver.requests.end());
-
- struct address_data request_data;
- request_data.address = Address(m(index));
- request_data.data = write_data;
- m_driver.requests.insert(make_pair(request_id, make_pair(m_proc_id, request_data)));
-
- /*sequencer()->makeRequest(CacheMsg(Address(m(index)), Address(m(index)), CacheRequestType_ST,
- Address(physical_address_t(1)),
- AccessModeType_UserMode, 4,
- PrefetchBit_No, 0, Address(0),
- 0, 0, false)); */
-}
-
-// Save and Load context of a thread
-void RaceyPseudoThread::saveCPUStates(string filename) {
- ogzstream out(filename.c_str());
- out.write((char*)&m_looper, sizeof(int));
- out.write((char*)&m_num, sizeof(unsigned));
- out.write((char*)&m_index1, sizeof(unsigned));
- out.write((char*)&m_index2, sizeof(unsigned));
- out.write((char*)&m_stop, sizeof(unsigned));
- out.close();
-}
-
-void RaceyPseudoThread::loadCPUStates(string filename) {
- igzstream out(filename.c_str());
- out.read((char*)&m_looper, sizeof(int));
- out.read((char*)&m_num, sizeof(unsigned));
- out.read((char*)&m_index1, sizeof(unsigned));
- out.read((char*)&m_index2, sizeof(unsigned));
- out.read((char*)&m_stop, sizeof(unsigned));
- out.close();
-}
-
-void RaceyPseudoThread::print(ostream& out) const {
- out << "[Racey Pseudo Thread: " << m_proc_id << "]" << endl;
-}
-
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