gpu_dyn_inst.cc revision 11308
111308Santhony.gutierrez@amd.com/* 211308Santhony.gutierrez@amd.com * Copyright (c) 2015 Advanced Micro Devices, Inc. 311308Santhony.gutierrez@amd.com * All rights reserved. 411308Santhony.gutierrez@amd.com * 511308Santhony.gutierrez@amd.com * For use for simulation and test purposes only 611308Santhony.gutierrez@amd.com * 711308Santhony.gutierrez@amd.com * Redistribution and use in source and binary forms, with or without 811308Santhony.gutierrez@amd.com * modification, are permitted provided that the following conditions are met: 911308Santhony.gutierrez@amd.com * 1011308Santhony.gutierrez@amd.com * 1. Redistributions of source code must retain the above copyright notice, 1111308Santhony.gutierrez@amd.com * this list of conditions and the following disclaimer. 1211308Santhony.gutierrez@amd.com * 1311308Santhony.gutierrez@amd.com * 2. Redistributions in binary form must reproduce the above copyright notice, 1411308Santhony.gutierrez@amd.com * this list of conditions and the following disclaimer in the documentation 1511308Santhony.gutierrez@amd.com * and/or other materials provided with the distribution. 1611308Santhony.gutierrez@amd.com * 1711308Santhony.gutierrez@amd.com * 3. Neither the name of the copyright holder nor the names of its contributors 1811308Santhony.gutierrez@amd.com * may be used to endorse or promote products derived from this software 1911308Santhony.gutierrez@amd.com * without specific prior written permission. 2011308Santhony.gutierrez@amd.com * 2111308Santhony.gutierrez@amd.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 2211308Santhony.gutierrez@amd.com * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2311308Santhony.gutierrez@amd.com * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2411308Santhony.gutierrez@amd.com * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 2511308Santhony.gutierrez@amd.com * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 2611308Santhony.gutierrez@amd.com * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 2711308Santhony.gutierrez@amd.com * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 2811308Santhony.gutierrez@amd.com * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 2911308Santhony.gutierrez@amd.com * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 3011308Santhony.gutierrez@amd.com * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3111308Santhony.gutierrez@amd.com * POSSIBILITY OF SUCH DAMAGE. 3211308Santhony.gutierrez@amd.com * 3311308Santhony.gutierrez@amd.com * Author: Anthony Gutierrez 3411308Santhony.gutierrez@amd.com */ 3511308Santhony.gutierrez@amd.com 3611308Santhony.gutierrez@amd.com#include "gpu-compute/gpu_dyn_inst.hh" 3711308Santhony.gutierrez@amd.com 3811308Santhony.gutierrez@amd.com#include "debug/GPUMem.hh" 3911308Santhony.gutierrez@amd.com#include "gpu-compute/gpu_static_inst.hh" 4011308Santhony.gutierrez@amd.com#include "gpu-compute/shader.hh" 4111308Santhony.gutierrez@amd.com#include "gpu-compute/wavefront.hh" 4211308Santhony.gutierrez@amd.com 4311308Santhony.gutierrez@amd.comGPUDynInst::GPUDynInst(ComputeUnit *_cu, Wavefront *_wf, 4411308Santhony.gutierrez@amd.com GPUStaticInst *_staticInst, uint64_t instSeqNum) 4511308Santhony.gutierrez@amd.com : GPUExecContext(_cu, _wf), m_op(Enums::MO_UNDEF), 4611308Santhony.gutierrez@amd.com memoryOrder(Enums::MEMORY_ORDER_NONE), useContinuation(false), 4711308Santhony.gutierrez@amd.com statusBitVector(0), staticInst(_staticInst), _seqNum(instSeqNum) 4811308Santhony.gutierrez@amd.com{ 4911308Santhony.gutierrez@amd.com tlbHitLevel.assign(VSZ, -1); 5011308Santhony.gutierrez@amd.com} 5111308Santhony.gutierrez@amd.com 5211308Santhony.gutierrez@amd.comvoid 5311308Santhony.gutierrez@amd.comGPUDynInst::execute() 5411308Santhony.gutierrez@amd.com{ 5511308Santhony.gutierrez@amd.com GPUDynInstPtr gpuDynInst = std::make_shared<GPUDynInst>(cu, wf, staticInst, 5611308Santhony.gutierrez@amd.com _seqNum); 5711308Santhony.gutierrez@amd.com staticInst->execute(gpuDynInst); 5811308Santhony.gutierrez@amd.com} 5911308Santhony.gutierrez@amd.com 6011308Santhony.gutierrez@amd.comint 6111308Santhony.gutierrez@amd.comGPUDynInst::numSrcRegOperands() 6211308Santhony.gutierrez@amd.com{ 6311308Santhony.gutierrez@amd.com return staticInst->numSrcRegOperands(); 6411308Santhony.gutierrez@amd.com} 6511308Santhony.gutierrez@amd.com 6611308Santhony.gutierrez@amd.comint 6711308Santhony.gutierrez@amd.comGPUDynInst::numDstRegOperands() 6811308Santhony.gutierrez@amd.com{ 6911308Santhony.gutierrez@amd.com return staticInst->numDstRegOperands(); 7011308Santhony.gutierrez@amd.com} 7111308Santhony.gutierrez@amd.com 7211308Santhony.gutierrez@amd.comint 7311308Santhony.gutierrez@amd.comGPUDynInst::getNumOperands() 7411308Santhony.gutierrez@amd.com{ 7511308Santhony.gutierrez@amd.com return staticInst->getNumOperands(); 7611308Santhony.gutierrez@amd.com} 7711308Santhony.gutierrez@amd.com 7811308Santhony.gutierrez@amd.combool 7911308Santhony.gutierrez@amd.comGPUDynInst::isVectorRegister(int operandIdx) 8011308Santhony.gutierrez@amd.com{ 8111308Santhony.gutierrez@amd.com return staticInst->isVectorRegister(operandIdx); 8211308Santhony.gutierrez@amd.com} 8311308Santhony.gutierrez@amd.com 8411308Santhony.gutierrez@amd.combool 8511308Santhony.gutierrez@amd.comGPUDynInst::isScalarRegister(int operandIdx) 8611308Santhony.gutierrez@amd.com{ 8711308Santhony.gutierrez@amd.com return staticInst->isVectorRegister(operandIdx); 8811308Santhony.gutierrez@amd.com} 8911308Santhony.gutierrez@amd.com 9011308Santhony.gutierrez@amd.comint 9111308Santhony.gutierrez@amd.comGPUDynInst::getRegisterIndex(int operandIdx) 9211308Santhony.gutierrez@amd.com{ 9311308Santhony.gutierrez@amd.com return staticInst->getRegisterIndex(operandIdx); 9411308Santhony.gutierrez@amd.com} 9511308Santhony.gutierrez@amd.com 9611308Santhony.gutierrez@amd.comint 9711308Santhony.gutierrez@amd.comGPUDynInst::getOperandSize(int operandIdx) 9811308Santhony.gutierrez@amd.com{ 9911308Santhony.gutierrez@amd.com return staticInst->getOperandSize(operandIdx); 10011308Santhony.gutierrez@amd.com} 10111308Santhony.gutierrez@amd.com 10211308Santhony.gutierrez@amd.combool 10311308Santhony.gutierrez@amd.comGPUDynInst::isDstOperand(int operandIdx) 10411308Santhony.gutierrez@amd.com{ 10511308Santhony.gutierrez@amd.com return staticInst->isDstOperand(operandIdx); 10611308Santhony.gutierrez@amd.com} 10711308Santhony.gutierrez@amd.com 10811308Santhony.gutierrez@amd.combool 10911308Santhony.gutierrez@amd.comGPUDynInst::isSrcOperand(int operandIdx) 11011308Santhony.gutierrez@amd.com{ 11111308Santhony.gutierrez@amd.com return staticInst->isSrcOperand(operandIdx); 11211308Santhony.gutierrez@amd.com} 11311308Santhony.gutierrez@amd.com 11411308Santhony.gutierrez@amd.combool 11511308Santhony.gutierrez@amd.comGPUDynInst::isArgLoad() 11611308Santhony.gutierrez@amd.com{ 11711308Santhony.gutierrez@amd.com return staticInst->isArgLoad(); 11811308Santhony.gutierrez@amd.com} 11911308Santhony.gutierrez@amd.com 12011308Santhony.gutierrez@amd.comconst std::string& 12111308Santhony.gutierrez@amd.comGPUDynInst::disassemble() const 12211308Santhony.gutierrez@amd.com{ 12311308Santhony.gutierrez@amd.com return staticInst->disassemble(); 12411308Santhony.gutierrez@amd.com} 12511308Santhony.gutierrez@amd.com 12611308Santhony.gutierrez@amd.comuint64_t 12711308Santhony.gutierrez@amd.comGPUDynInst::seqNum() const 12811308Santhony.gutierrez@amd.com{ 12911308Santhony.gutierrez@amd.com return _seqNum; 13011308Santhony.gutierrez@amd.com} 13111308Santhony.gutierrez@amd.com 13211308Santhony.gutierrez@amd.comEnums::OpType 13311308Santhony.gutierrez@amd.comGPUDynInst::opType() 13411308Santhony.gutierrez@amd.com{ 13511308Santhony.gutierrez@amd.com return staticInst->o_type; 13611308Santhony.gutierrez@amd.com} 13711308Santhony.gutierrez@amd.com 13811308Santhony.gutierrez@amd.comEnums::StorageClassType 13911308Santhony.gutierrez@amd.comGPUDynInst::executedAs() 14011308Santhony.gutierrez@amd.com{ 14111308Santhony.gutierrez@amd.com return staticInst->executed_as; 14211308Santhony.gutierrez@amd.com} 14311308Santhony.gutierrez@amd.com 14411308Santhony.gutierrez@amd.com// Process a memory instruction and (if necessary) submit timing request 14511308Santhony.gutierrez@amd.comvoid 14611308Santhony.gutierrez@amd.comGPUDynInst::initiateAcc(GPUDynInstPtr gpuDynInst) 14711308Santhony.gutierrez@amd.com{ 14811308Santhony.gutierrez@amd.com DPRINTF(GPUMem, "CU%d: WF[%d][%d]: mempacket status bitvector=%#x\n", 14911308Santhony.gutierrez@amd.com cu->cu_id, simdId, wfSlotId, exec_mask); 15011308Santhony.gutierrez@amd.com 15111308Santhony.gutierrez@amd.com staticInst->initiateAcc(gpuDynInst); 15211308Santhony.gutierrez@amd.com time = 0; 15311308Santhony.gutierrez@amd.com} 15411308Santhony.gutierrez@amd.com 15511308Santhony.gutierrez@amd.combool 15611308Santhony.gutierrez@amd.comGPUDynInst::scalarOp() const 15711308Santhony.gutierrez@amd.com{ 15811308Santhony.gutierrez@amd.com return staticInst->scalarOp(); 15911308Santhony.gutierrez@amd.com} 16011308Santhony.gutierrez@amd.com 16111308Santhony.gutierrez@amd.comvoid 16211308Santhony.gutierrez@amd.comGPUDynInst::updateStats() 16311308Santhony.gutierrez@amd.com{ 16411308Santhony.gutierrez@amd.com if (staticInst->isLocalMem()) { 16511308Santhony.gutierrez@amd.com // access to LDS (shared) memory 16611308Santhony.gutierrez@amd.com cu->dynamicLMemInstrCnt++; 16711308Santhony.gutierrez@amd.com } else { 16811308Santhony.gutierrez@amd.com // access to global memory 16911308Santhony.gutierrez@amd.com 17011308Santhony.gutierrez@amd.com // update PageDivergence histogram 17111308Santhony.gutierrez@amd.com int number_pages_touched = cu->pagesTouched.size(); 17211308Santhony.gutierrez@amd.com assert(number_pages_touched); 17311308Santhony.gutierrez@amd.com cu->pageDivergenceDist.sample(number_pages_touched); 17411308Santhony.gutierrez@amd.com 17511308Santhony.gutierrez@amd.com std::pair<ComputeUnit::pageDataStruct::iterator, bool> ret; 17611308Santhony.gutierrez@amd.com 17711308Santhony.gutierrez@amd.com for (auto it : cu->pagesTouched) { 17811308Santhony.gutierrez@amd.com // see if this page has been touched before. if not, this also 17911308Santhony.gutierrez@amd.com // inserts the page into the table. 18011308Santhony.gutierrez@amd.com ret = cu->pageAccesses 18111308Santhony.gutierrez@amd.com .insert(ComputeUnit::pageDataStruct::value_type(it.first, 18211308Santhony.gutierrez@amd.com std::make_pair(1, it.second))); 18311308Santhony.gutierrez@amd.com 18411308Santhony.gutierrez@amd.com // if yes, then update the stats 18511308Santhony.gutierrez@amd.com if (!ret.second) { 18611308Santhony.gutierrez@amd.com ret.first->second.first++; 18711308Santhony.gutierrez@amd.com ret.first->second.second += it.second; 18811308Santhony.gutierrez@amd.com } 18911308Santhony.gutierrez@amd.com } 19011308Santhony.gutierrez@amd.com 19111308Santhony.gutierrez@amd.com cu->pagesTouched.clear(); 19211308Santhony.gutierrez@amd.com 19311308Santhony.gutierrez@amd.com // total number of memory instructions (dynamic) 19411308Santhony.gutierrez@amd.com // Atomics are counted as a single memory instruction. 19511308Santhony.gutierrez@amd.com // this is # memory instructions per wavefronts, not per workitem 19611308Santhony.gutierrez@amd.com cu->dynamicGMemInstrCnt++; 19711308Santhony.gutierrez@amd.com } 19811308Santhony.gutierrez@amd.com} 199