SeriesRequestGenerator.cc revision 11793
16145SN/A/* 26386SN/A * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 37553SN/A * Copyright (c) 2009-2010 Advanced Micro Devices, Inc. 46386SN/A * All rights reserved. 56386SN/A * 66386SN/A * Redistribution and use in source and binary forms, with or without 76386SN/A * modification, are permitted provided that the following conditions are 86386SN/A * met: redistributions of source code must retain the above copyright 96386SN/A * notice, this list of conditions and the following disclaimer; 106386SN/A * redistributions in binary form must reproduce the above copyright 116386SN/A * notice, this list of conditions and the following disclaimer in the 126386SN/A * documentation and/or other materials provided with the distribution; 136386SN/A * neither the name of the copyright holders nor the names of its 146386SN/A * contributors may be used to endorse or promote products derived from 156386SN/A * this software without specific prior written permission. 166386SN/A * 176386SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 186386SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 196386SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 206386SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 216386SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 226386SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 236386SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 246386SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 256386SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 266386SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 276386SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 286386SN/A */ 296145SN/A 3011793Sbrandon.potter@amd.com#include "cpu/testers/directedtest/SeriesRequestGenerator.hh" 3111793Sbrandon.potter@amd.com 3210348Sandreas.hansson@arm.com#include "base/random.hh" 337632SBrad.Beckmann@amd.com#include "cpu/testers/directedtest/DirectedGenerator.hh" 347632SBrad.Beckmann@amd.com#include "cpu/testers/directedtest/RubyDirectedTester.hh" 358232Snate@binkert.org#include "debug/DirectedTest.hh" 366145SN/A 377553SN/ASeriesRequestGenerator::SeriesRequestGenerator(const Params *p) 389365Snilay@cs.wisc.edu : DirectedGenerator(p), 399365Snilay@cs.wisc.edu m_addr_increment_size(p->addr_increment_size), 409365Snilay@cs.wisc.edu m_percent_writes(p->percent_writes) 416145SN/A{ 427553SN/A m_status = SeriesRequestGeneratorStatus_Thinking; 437553SN/A m_active_node = 0; 447553SN/A m_address = 0x0; 456145SN/A} 466145SN/A 477553SN/ASeriesRequestGenerator::~SeriesRequestGenerator() 486145SN/A{ 496145SN/A} 506145SN/A 517553SN/Abool 527553SN/ASeriesRequestGenerator::initiate() 536145SN/A{ 547553SN/A DPRINTF(DirectedTest, "initiating request\n"); 557553SN/A assert(m_status == SeriesRequestGeneratorStatus_Thinking); 566145SN/A 578950Sandreas.hansson@arm.com MasterPort* port = m_directed_tester->getCpuPort(m_active_node); 587553SN/A 597553SN/A Request::Flags flags; 607553SN/A 617553SN/A // For simplicity, requests are assumed to be 1 byte-sized 628832SAli.Saidi@ARM.com Request *req = new Request(m_address, 1, flags, masterId); 637553SN/A 647553SN/A Packet::Command cmd; 6510348Sandreas.hansson@arm.com bool do_write = (random_mt.random(0, 100) < m_percent_writes); 669365Snilay@cs.wisc.edu if (do_write) { 677553SN/A cmd = MemCmd::WriteReq; 687553SN/A } else { 697553SN/A cmd = MemCmd::ReadReq; 706145SN/A } 719365Snilay@cs.wisc.edu 728949Sandreas.hansson@arm.com PacketPtr pkt = new Packet(req, cmd); 7310566Sandreas.hansson@arm.com pkt->allocate(); 746145SN/A 758975Sandreas.hansson@arm.com if (port->sendTimingReq(pkt)) { 767553SN/A DPRINTF(DirectedTest, "initiating request - successful\n"); 777553SN/A m_status = SeriesRequestGeneratorStatus_Request_Pending; 787553SN/A return true; 797553SN/A } else { 807553SN/A // If the packet did not issue, must delete 817553SN/A // Note: No need to delete the data, the packet destructor 827553SN/A // will delete it 837553SN/A delete pkt->req; 847553SN/A delete pkt; 857553SN/A 867553SN/A DPRINTF(DirectedTest, "failed to initiate request - sequencer not ready\n"); 877553SN/A return false; 887553SN/A } 896145SN/A} 906145SN/A 9111320Ssteve.reinhardt@amd.comvoid 928655Sandreas.hansson@arm.comSeriesRequestGenerator::performCallback(uint32_t proc, Addr address) 936145SN/A{ 947553SN/A assert(m_active_node == proc); 9511320Ssteve.reinhardt@amd.com assert(m_address == address); 967553SN/A assert(m_status == SeriesRequestGeneratorStatus_Request_Pending); 976145SN/A 987553SN/A m_status = SeriesRequestGeneratorStatus_Thinking; 997553SN/A m_active_node++; 1007553SN/A if (m_active_node == m_num_cpus) { 1017553SN/A // 1027553SN/A // Cycle of requests completed, increment cycle completions and restart 1037553SN/A // at cpu zero 1047553SN/A // 1057553SN/A m_directed_tester->incrementCycleCompletions(); 1067553SN/A m_address += m_addr_increment_size; 1077553SN/A m_active_node = 0; 1087553SN/A } 1096145SN/A} 1106145SN/A 1117553SN/ASeriesRequestGenerator * 1127553SN/ASeriesRequestGeneratorParams::create() 1136145SN/A{ 1147553SN/A return new SeriesRequestGenerator(this); 1156145SN/A} 116