SeriesRequestGenerator.cc revision 6145
112468Sglenn.bergmans@arm.com 212468Sglenn.bergmans@arm.com/* 312468Sglenn.bergmans@arm.com * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 412468Sglenn.bergmans@arm.com * All rights reserved. 512468Sglenn.bergmans@arm.com * 612468Sglenn.bergmans@arm.com * Redistribution and use in source and binary forms, with or without 712468Sglenn.bergmans@arm.com * modification, are permitted provided that the following conditions are 812468Sglenn.bergmans@arm.com * met: redistributions of source code must retain the above copyright 912468Sglenn.bergmans@arm.com * notice, this list of conditions and the following disclaimer; 1012468Sglenn.bergmans@arm.com * redistributions in binary form must reproduce the above copyright 1112468Sglenn.bergmans@arm.com * notice, this list of conditions and the following disclaimer in the 1212468Sglenn.bergmans@arm.com * documentation and/or other materials provided with the distribution; 1312468Sglenn.bergmans@arm.com * neither the name of the copyright holders nor the names of its 1412468Sglenn.bergmans@arm.com * contributors may be used to endorse or promote products derived from 1512468Sglenn.bergmans@arm.com * this software without specific prior written permission. 1612468Sglenn.bergmans@arm.com * 1712468Sglenn.bergmans@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1812468Sglenn.bergmans@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1912468Sglenn.bergmans@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2012468Sglenn.bergmans@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2112468Sglenn.bergmans@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2212468Sglenn.bergmans@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2312468Sglenn.bergmans@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2412468Sglenn.bergmans@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2512468Sglenn.bergmans@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2612468Sglenn.bergmans@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2712468Sglenn.bergmans@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2812468Sglenn.bergmans@arm.com */ 2912468Sglenn.bergmans@arm.com 3012468Sglenn.bergmans@arm.com/* 3112468Sglenn.bergmans@arm.com * $Id$ 3212468Sglenn.bergmans@arm.com * 3312468Sglenn.bergmans@arm.com */ 3412468Sglenn.bergmans@arm.com 3512468Sglenn.bergmans@arm.com// This Deterministic Generator generates GETX requests for all nodes in the system 3612468Sglenn.bergmans@arm.com// The GETX requests are generated one at a time in round-robin fashion 0...1...2...etc. 3712468Sglenn.bergmans@arm.com 3812468Sglenn.bergmans@arm.com#include "DetermGETXGenerator.hh" 3912468Sglenn.bergmans@arm.com#include "DetermGETXGeneratorStatus.hh" 4012468Sglenn.bergmans@arm.com#include "LockStatus.hh" 4112468Sglenn.bergmans@arm.com#include "Sequencer.hh" 4212468Sglenn.bergmans@arm.com#include "System.hh" 4312468Sglenn.bergmans@arm.com#include "RubyConfig.hh" 4412468Sglenn.bergmans@arm.com#include "SubBlock.hh" 4512468Sglenn.bergmans@arm.com#include "DeterministicDriver.hh" 4612468Sglenn.bergmans@arm.com#include "Chip.hh" 4712468Sglenn.bergmans@arm.com 4812468Sglenn.bergmans@arm.comDetermGETXGenerator::DetermGETXGenerator(NodeID node, DeterministicDriver& driver) : 4912468Sglenn.bergmans@arm.com m_driver(driver) 5012468Sglenn.bergmans@arm.com{ 5112468Sglenn.bergmans@arm.com m_status = DetermGETXGeneratorStatus_Thinking; 5212468Sglenn.bergmans@arm.com m_last_transition = 0; 5312468Sglenn.bergmans@arm.com m_node = node; 5412468Sglenn.bergmans@arm.com m_address = Address(9999); // initialize to null value 5512468Sglenn.bergmans@arm.com m_counter = 0; 5612468Sglenn.bergmans@arm.com 5712468Sglenn.bergmans@arm.com // don't know exactly when this node needs to request so just guess randomly 5812468Sglenn.bergmans@arm.com g_eventQueue_ptr->scheduleEvent(this, 1+(random() % 200)); 5912468Sglenn.bergmans@arm.com} 6012468Sglenn.bergmans@arm.com 6112468Sglenn.bergmans@arm.comDetermGETXGenerator::~DetermGETXGenerator() 6212468Sglenn.bergmans@arm.com{ 6312468Sglenn.bergmans@arm.com} 6412468Sglenn.bergmans@arm.com 6512468Sglenn.bergmans@arm.comvoid DetermGETXGenerator::wakeup() 6612468Sglenn.bergmans@arm.com{ 6712468Sglenn.bergmans@arm.com DEBUG_EXPR(TESTER_COMP, MedPrio, m_node); 6812468Sglenn.bergmans@arm.com DEBUG_EXPR(TESTER_COMP, MedPrio, m_status); 6912468Sglenn.bergmans@arm.com 7012468Sglenn.bergmans@arm.com // determine if this node is next for the GETX round robin request 7112468Sglenn.bergmans@arm.com if (m_status == DetermGETXGeneratorStatus_Thinking) { 7212468Sglenn.bergmans@arm.com if (m_driver.isStoreReady(m_node)) { 7312468Sglenn.bergmans@arm.com pickAddress(); 7412468Sglenn.bergmans@arm.com m_status = DetermGETXGeneratorStatus_Store_Pending; // Store Pending 7512468Sglenn.bergmans@arm.com m_last_transition = g_eventQueue_ptr->getTime(); 7612468Sglenn.bergmans@arm.com initiateStore(); // GETX 7712468Sglenn.bergmans@arm.com } else { // I'll check again later 7812468Sglenn.bergmans@arm.com g_eventQueue_ptr->scheduleEvent(this, thinkTime()); 7912468Sglenn.bergmans@arm.com } 8012468Sglenn.bergmans@arm.com } else { 8112468Sglenn.bergmans@arm.com WARN_EXPR(m_status); 8212468Sglenn.bergmans@arm.com ERROR_MSG("Invalid status"); 8312468Sglenn.bergmans@arm.com } 8412468Sglenn.bergmans@arm.com 8512468Sglenn.bergmans@arm.com} 8612468Sglenn.bergmans@arm.com 8712468Sglenn.bergmans@arm.comvoid DetermGETXGenerator::performCallback(NodeID proc, SubBlock& data) 8812468Sglenn.bergmans@arm.com{ 8912468Sglenn.bergmans@arm.com Address address = data.getAddress(); 9012468Sglenn.bergmans@arm.com assert(proc == m_node); 9112468Sglenn.bergmans@arm.com assert(address == m_address); 9212468Sglenn.bergmans@arm.com 9312468Sglenn.bergmans@arm.com DEBUG_EXPR(TESTER_COMP, LowPrio, proc); 9412468Sglenn.bergmans@arm.com DEBUG_EXPR(TESTER_COMP, LowPrio, m_status); 9512468Sglenn.bergmans@arm.com DEBUG_EXPR(TESTER_COMP, LowPrio, address); 9612468Sglenn.bergmans@arm.com DEBUG_EXPR(TESTER_COMP, LowPrio, data); 9712468Sglenn.bergmans@arm.com 9812468Sglenn.bergmans@arm.com if (m_status == DetermGETXGeneratorStatus_Store_Pending) { 9912468Sglenn.bergmans@arm.com m_driver.recordStoreLatency(g_eventQueue_ptr->getTime() - m_last_transition); 10012468Sglenn.bergmans@arm.com data.writeByte(m_node); 10112468Sglenn.bergmans@arm.com m_driver.storeCompleted(m_node, data.getAddress()); // advance the store queue 10212468Sglenn.bergmans@arm.com 10312468Sglenn.bergmans@arm.com m_counter++; 10412468Sglenn.bergmans@arm.com if (m_counter < g_tester_length) { 10512468Sglenn.bergmans@arm.com m_status = DetermGETXGeneratorStatus_Thinking; 10612468Sglenn.bergmans@arm.com m_last_transition = g_eventQueue_ptr->getTime(); 10712468Sglenn.bergmans@arm.com g_eventQueue_ptr->scheduleEvent(this, waitTime()); 10812468Sglenn.bergmans@arm.com } else { 10912468Sglenn.bergmans@arm.com m_driver.reportDone(); 11012468Sglenn.bergmans@arm.com m_status = DetermGETXGeneratorStatus_Done; 11112468Sglenn.bergmans@arm.com m_last_transition = g_eventQueue_ptr->getTime(); 11212468Sglenn.bergmans@arm.com } 11312468Sglenn.bergmans@arm.com 11412468Sglenn.bergmans@arm.com } else { 11512468Sglenn.bergmans@arm.com WARN_EXPR(m_status); 11612468Sglenn.bergmans@arm.com ERROR_MSG("Invalid status"); 11712468Sglenn.bergmans@arm.com } 11812468Sglenn.bergmans@arm.com} 11912468Sglenn.bergmans@arm.com 12012468Sglenn.bergmans@arm.comint DetermGETXGenerator::thinkTime() const 12112468Sglenn.bergmans@arm.com{ 12212468Sglenn.bergmans@arm.com return g_think_time; 12312468Sglenn.bergmans@arm.com} 12412468Sglenn.bergmans@arm.com 12512468Sglenn.bergmans@arm.comint DetermGETXGenerator::waitTime() const 12612468Sglenn.bergmans@arm.com{ 12712468Sglenn.bergmans@arm.com return g_wait_time; 12812468Sglenn.bergmans@arm.com} 12912468Sglenn.bergmans@arm.com 13012468Sglenn.bergmans@arm.comvoid DetermGETXGenerator::pickAddress() 13112468Sglenn.bergmans@arm.com{ 13212468Sglenn.bergmans@arm.com assert(m_status == DetermGETXGeneratorStatus_Thinking); 13312468Sglenn.bergmans@arm.com 13412468Sglenn.bergmans@arm.com m_address = m_driver.getNextStoreAddr(m_node); 13512468Sglenn.bergmans@arm.com} 13612468Sglenn.bergmans@arm.com 13712468Sglenn.bergmans@arm.comvoid DetermGETXGenerator::initiateStore() 13812468Sglenn.bergmans@arm.com{ 13912468Sglenn.bergmans@arm.com DEBUG_MSG(TESTER_COMP, MedPrio, "initiating Store"); 14012468Sglenn.bergmans@arm.com sequencer()->makeRequest(CacheMsg(m_address, m_address, CacheRequestType_ST, Address(3), AccessModeType_UserMode, 1, PrefetchBit_No, 0, Address(0), 0 /* only 1 SMT thread */, 0, false)); 14112468Sglenn.bergmans@arm.com} 14212468Sglenn.bergmans@arm.com 14312468Sglenn.bergmans@arm.comSequencer* DetermGETXGenerator::sequencer() const 14412468Sglenn.bergmans@arm.com{ 14512468Sglenn.bergmans@arm.com return g_system_ptr->getChip(m_node/RubyConfig::numberOfProcsPerChip())->getSequencer(m_node%RubyConfig::numberOfProcsPerChip()); 14612468Sglenn.bergmans@arm.com} 14712468Sglenn.bergmans@arm.com 14812468Sglenn.bergmans@arm.comvoid DetermGETXGenerator::print(ostream& out) const 14912468Sglenn.bergmans@arm.com{ 15012468Sglenn.bergmans@arm.com} 15112468Sglenn.bergmans@arm.com 15212468Sglenn.bergmans@arm.com