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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Neither the name of the copyright holder nor the names of its 1812697Santhony.gutierrez@amd.com * contributors may be used to endorse or promote products derived from this 1912697Santhony.gutierrez@amd.com * software 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 * 3312697Santhony.gutierrez@amd.com * Authors: Sooraj Puthoor, 3412697Santhony.gutierrez@amd.com * Mark Wyse 3511308Santhony.gutierrez@amd.com */ 3611308Santhony.gutierrez@amd.com 3711308Santhony.gutierrez@amd.com#ifndef __SCHEDULE_STAGE_HH__ 3811308Santhony.gutierrez@amd.com#define __SCHEDULE_STAGE_HH__ 3911308Santhony.gutierrez@amd.com 4011308Santhony.gutierrez@amd.com#include <utility> 4111308Santhony.gutierrez@amd.com#include <vector> 4211308Santhony.gutierrez@amd.com 4311308Santhony.gutierrez@amd.com#include "gpu-compute/exec_stage.hh" 4411308Santhony.gutierrez@amd.com#include "gpu-compute/scheduler.hh" 4511308Santhony.gutierrez@amd.com#include "gpu-compute/scoreboard_check_stage.hh" 4611308Santhony.gutierrez@amd.com 4711308Santhony.gutierrez@amd.com// Schedule or execution arbitration stage. 4811308Santhony.gutierrez@amd.com// From the pool of ready waves in the ready list, 4911308Santhony.gutierrez@amd.com// one wave is selected for each execution resource. 5011308Santhony.gutierrez@amd.com// The selection is made based on a scheduling policy 5111308Santhony.gutierrez@amd.com 5211308Santhony.gutierrez@amd.comclass ComputeUnit; 5311308Santhony.gutierrez@amd.comclass Wavefront; 5411308Santhony.gutierrez@amd.com 5511308Santhony.gutierrez@amd.comstruct ComputeUnitParams; 5611308Santhony.gutierrez@amd.com 5711308Santhony.gutierrez@amd.comclass ScheduleStage 5811308Santhony.gutierrez@amd.com{ 5911308Santhony.gutierrez@amd.com public: 6011308Santhony.gutierrez@amd.com ScheduleStage(const ComputeUnitParams *params); 6111308Santhony.gutierrez@amd.com ~ScheduleStage(); 6211308Santhony.gutierrez@amd.com void init(ComputeUnit *cu); 6311308Santhony.gutierrez@amd.com void exec(); 6411308Santhony.gutierrez@amd.com void arbitrate(); 6511308Santhony.gutierrez@amd.com // Stats related variables and methods 6611308Santhony.gutierrez@amd.com std::string name() { return _name; } 6711308Santhony.gutierrez@amd.com void regStats(); 6811308Santhony.gutierrez@amd.com 6911308Santhony.gutierrez@amd.com private: 7011308Santhony.gutierrez@amd.com ComputeUnit *computeUnit; 7111308Santhony.gutierrez@amd.com uint32_t numSIMDs; 7211308Santhony.gutierrez@amd.com uint32_t numMemUnits; 7311308Santhony.gutierrez@amd.com 7411308Santhony.gutierrez@amd.com // Each execution resource will have its own 7511308Santhony.gutierrez@amd.com // scheduler and a dispatch list 7611308Santhony.gutierrez@amd.com std::vector<Scheduler> scheduler; 7711308Santhony.gutierrez@amd.com 7811308Santhony.gutierrez@amd.com // Stores the status of waves. A READY implies the 7911308Santhony.gutierrez@amd.com // wave is ready to be scheduled this cycle and 8011308Santhony.gutierrez@amd.com // is already present in the readyList 8111308Santhony.gutierrez@amd.com std::vector<std::vector<std::pair<Wavefront*, WAVE_STATUS>>*> 8211308Santhony.gutierrez@amd.com waveStatusList; 8311308Santhony.gutierrez@amd.com 8411308Santhony.gutierrez@amd.com // List of waves which will be dispatched to 8511308Santhony.gutierrez@amd.com // each execution resource. A FILLED implies 8611308Santhony.gutierrez@amd.com // dispatch list is non-empty and 8711308Santhony.gutierrez@amd.com // execution unit has something to execute 8811308Santhony.gutierrez@amd.com // this cycle. Currently, the dispatch list of 8911308Santhony.gutierrez@amd.com // an execution resource can hold only one wave because 9011308Santhony.gutierrez@amd.com // an execution resource can execute only one wave in a cycle. 9111308Santhony.gutierrez@amd.com std::vector<std::pair<Wavefront*, DISPATCH_STATUS>> *dispatchList; 9211308Santhony.gutierrez@amd.com 9311308Santhony.gutierrez@amd.com std::string _name; 9411308Santhony.gutierrez@amd.com}; 9511308Santhony.gutierrez@amd.com 9611308Santhony.gutierrez@amd.com#endif // __SCHEDULE_STAGE_HH__ 97