InvalidateGenerator.cc revision 11320
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 307632SBrad.Beckmann@amd.com#include "cpu/testers/directedtest/DirectedGenerator.hh" 317632SBrad.Beckmann@amd.com#include "cpu/testers/directedtest/InvalidateGenerator.hh" 328229Snate@binkert.org#include "cpu/testers/directedtest/RubyDirectedTester.hh" 338232Snate@binkert.org#include "debug/DirectedTest.hh" 346145SN/A 357553SN/AInvalidateGenerator::InvalidateGenerator(const Params *p) 367553SN/A : DirectedGenerator(p) 376145SN/A{ 387553SN/A // 397553SN/A // First, issue loads to bring the block into S state 407553SN/A // 417553SN/A m_status = InvalidateGeneratorStatus_Load_Waiting; 427553SN/A m_active_read_node = 0; 437553SN/A m_active_inv_node = 0; 447553SN/A m_address = 0x0; 457553SN/A m_addr_increment_size = p->addr_increment_size; 466145SN/A} 476145SN/A 487553SN/AInvalidateGenerator::~InvalidateGenerator() 496145SN/A{ 506145SN/A} 516145SN/A 527553SN/Abool 537553SN/AInvalidateGenerator::initiate() 546145SN/A{ 558950Sandreas.hansson@arm.com MasterPort* port; 567553SN/A Request::Flags flags; 577553SN/A PacketPtr pkt; 587553SN/A Packet::Command cmd; 596145SN/A 607553SN/A // For simplicity, requests are assumed to be 1 byte-sized 618832SAli.Saidi@ARM.com Request *req = new Request(m_address, 1, flags, masterId); 627553SN/A 637553SN/A // 647553SN/A // Based on the current state, issue a load or a store 657553SN/A // 667553SN/A if (m_status == InvalidateGeneratorStatus_Load_Waiting) { 677553SN/A DPRINTF(DirectedTest, "initiating read\n"); 687553SN/A cmd = MemCmd::ReadReq; 698950Sandreas.hansson@arm.com port = m_directed_tester->getCpuPort(m_active_read_node); 708949Sandreas.hansson@arm.com pkt = new Packet(req, cmd); 717553SN/A } else if (m_status == InvalidateGeneratorStatus_Inv_Waiting) { 727553SN/A DPRINTF(DirectedTest, "initiating invalidating write\n"); 737553SN/A cmd = MemCmd::WriteReq; 748950Sandreas.hansson@arm.com port = m_directed_tester->getCpuPort(m_active_inv_node); 758949Sandreas.hansson@arm.com pkt = new Packet(req, cmd); 767553SN/A } else { 777553SN/A panic("initiate was unexpectedly called\n"); 786145SN/A } 7910566Sandreas.hansson@arm.com pkt->allocate(); 806145SN/A 818975Sandreas.hansson@arm.com if (port->sendTimingReq(pkt)) { 827553SN/A DPRINTF(DirectedTest, "initiating request - successful\n"); 837553SN/A if (m_status == InvalidateGeneratorStatus_Load_Waiting) { 847553SN/A m_status = InvalidateGeneratorStatus_Load_Pending; 857553SN/A } else { 867553SN/A m_status = InvalidateGeneratorStatus_Inv_Pending; 877553SN/A } 887553SN/A return true; 897553SN/A } else { 907553SN/A // If the packet did not issue, must delete 917553SN/A // Note: No need to delete the data, the packet destructor 927553SN/A // will delete it 937553SN/A delete pkt->req; 947553SN/A delete pkt; 957553SN/A 967553SN/A DPRINTF(DirectedTest, "failed to issue request - sequencer not ready\n"); 977553SN/A return false; 987553SN/A } 996145SN/A} 1006145SN/A 10111320Ssteve.reinhardt@amd.comvoid 1028655Sandreas.hansson@arm.comInvalidateGenerator::performCallback(uint32_t proc, Addr address) 1036145SN/A{ 10411320Ssteve.reinhardt@amd.com assert(m_address == address); 1056145SN/A 1067553SN/A if (m_status == InvalidateGeneratorStatus_Load_Pending) { 1077553SN/A assert(m_active_read_node == proc); 1087553SN/A m_active_read_node++; 1097553SN/A // 1107553SN/A // Once all cpus have the block in S state, issue the invalidate 1117553SN/A // 1127553SN/A if (m_active_read_node == m_num_cpus) { 1137553SN/A m_status = InvalidateGeneratorStatus_Inv_Waiting; 1147553SN/A m_active_read_node = 0; 1157553SN/A } else { 1167553SN/A m_status = InvalidateGeneratorStatus_Load_Waiting; 1177553SN/A } 1187553SN/A } else if (m_status == InvalidateGeneratorStatus_Inv_Pending) { 1197553SN/A assert(m_active_inv_node == proc); 1207553SN/A m_active_inv_node++; 1217553SN/A if (m_active_inv_node == m_num_cpus) { 1227553SN/A m_address += m_addr_increment_size; 1237553SN/A m_active_inv_node = 0; 1247553SN/A } 1257553SN/A // 1267553SN/A // Invalidate completed, send that info to the tester and restart 1277553SN/A // the cycle 1287553SN/A // 1297553SN/A m_directed_tester->incrementCycleCompletions(); 1307553SN/A m_status = InvalidateGeneratorStatus_Load_Waiting; 13111320Ssteve.reinhardt@amd.com } 13211320Ssteve.reinhardt@amd.com 1336145SN/A} 1346145SN/A 1357553SN/AInvalidateGenerator * 1367553SN/AInvalidateGeneratorParams::create() 1376145SN/A{ 1387553SN/A return new InvalidateGenerator(this); 1396145SN/A} 140