local_memory_pipeline.hh revision 11308
111308Santhony.gutierrez@amd.com/* 211308Santhony.gutierrez@amd.com * Copyright (c) 2014-2015 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. 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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: Sooraj Puthoor 3411308Santhony.gutierrez@amd.com */ 3511308Santhony.gutierrez@amd.com 3611308Santhony.gutierrez@amd.com#ifndef __LOCAL_MEMORY_PIPELINE_HH__ 3711308Santhony.gutierrez@amd.com#define __LOCAL_MEMORY_PIPELINE_HH__ 3811308Santhony.gutierrez@amd.com 3911308Santhony.gutierrez@amd.com#include <queue> 4011308Santhony.gutierrez@amd.com#include <string> 4111308Santhony.gutierrez@amd.com 4211308Santhony.gutierrez@amd.com#include "gpu-compute/misc.hh" 4311308Santhony.gutierrez@amd.com#include "params/ComputeUnit.hh" 4411308Santhony.gutierrez@amd.com#include "sim/stats.hh" 4511308Santhony.gutierrez@amd.com 4611308Santhony.gutierrez@amd.com/* 4711308Santhony.gutierrez@amd.com * @file local_memory_pipeline.hh 4811308Santhony.gutierrez@amd.com * 4911308Santhony.gutierrez@amd.com * The local memory pipeline issues newly created local memory packets 5011308Santhony.gutierrez@amd.com * from pipeline to the LDS. This stage also retires previously issued 5111308Santhony.gutierrez@amd.com * loads and stores that have returned from the LDS. 5211308Santhony.gutierrez@amd.com */ 5311308Santhony.gutierrez@amd.com 5411308Santhony.gutierrez@amd.comclass ComputeUnit; 5511308Santhony.gutierrez@amd.comclass Wavefront; 5611308Santhony.gutierrez@amd.com 5711308Santhony.gutierrez@amd.comclass LocalMemPipeline 5811308Santhony.gutierrez@amd.com{ 5911308Santhony.gutierrez@amd.com public: 6011308Santhony.gutierrez@amd.com LocalMemPipeline(const ComputeUnitParams *params); 6111308Santhony.gutierrez@amd.com void init(ComputeUnit *cu); 6211308Santhony.gutierrez@amd.com void exec(); 6311308Santhony.gutierrez@amd.com 6411308Santhony.gutierrez@amd.com template<typename c0, typename c1> void doSmReturn(GPUDynInstPtr m); 6511308Santhony.gutierrez@amd.com 6611308Santhony.gutierrez@amd.com std::queue<GPUDynInstPtr> &getLMReqFIFO() { return lmIssuedRequests; } 6711308Santhony.gutierrez@amd.com std::queue<GPUDynInstPtr> &getLMRespFIFO() { return lmReturnedRequests; } 6811308Santhony.gutierrez@amd.com 6911308Santhony.gutierrez@amd.com bool 7011308Santhony.gutierrez@amd.com isLMRespFIFOWrRdy() const 7111308Santhony.gutierrez@amd.com { 7211308Santhony.gutierrez@amd.com return lmReturnedRequests.size() < lmQueueSize; 7311308Santhony.gutierrez@amd.com } 7411308Santhony.gutierrez@amd.com 7511308Santhony.gutierrez@amd.com bool 7611308Santhony.gutierrez@amd.com isLMReqFIFOWrRdy(uint32_t pendReqs=0) const 7711308Santhony.gutierrez@amd.com { 7811308Santhony.gutierrez@amd.com return (lmIssuedRequests.size() + pendReqs) < lmQueueSize; 7911308Santhony.gutierrez@amd.com } 8011308Santhony.gutierrez@amd.com 8111308Santhony.gutierrez@amd.com const std::string& name() const { return _name; } 8211308Santhony.gutierrez@amd.com void regStats(); 8311308Santhony.gutierrez@amd.com 8411308Santhony.gutierrez@amd.com private: 8511308Santhony.gutierrez@amd.com ComputeUnit *computeUnit; 8611308Santhony.gutierrez@amd.com std::string _name; 8711308Santhony.gutierrez@amd.com int lmQueueSize; 8811308Santhony.gutierrez@amd.com Stats::Scalar loadVrfBankConflictCycles; 8911308Santhony.gutierrez@amd.com // Local Memory Request Fifo: all shared memory requests 9011308Santhony.gutierrez@amd.com // are issued to this FIFO from the memory pipelines 9111308Santhony.gutierrez@amd.com std::queue<GPUDynInstPtr> lmIssuedRequests; 9211308Santhony.gutierrez@amd.com 9311308Santhony.gutierrez@amd.com // Local Memory Response Fifo: all responses of shared memory 9411308Santhony.gutierrez@amd.com // requests are sent to this FIFO from LDS 9511308Santhony.gutierrez@amd.com std::queue<GPUDynInstPtr> lmReturnedRequests; 9611308Santhony.gutierrez@amd.com}; 9711308Santhony.gutierrez@amd.com 9811308Santhony.gutierrez@amd.com#endif // __LOCAL_MEMORY_PIPELINE_HH__ 99