diff options
author | Tony Gutierrez <anthony.gutierrez@amd.com> | 2016-01-19 14:28:22 -0500 |
---|---|---|
committer | Tony Gutierrez <anthony.gutierrez@amd.com> | 2016-01-19 14:28:22 -0500 |
commit | 1a7d3f9fcb76a68540dd948f91413533a383bfde (patch) | |
tree | 867510a147cd095f19499d26b7c02d27de4cae9d /src/gpu-compute/schedule_stage.hh | |
parent | 28e353e0403ea379d244a418e8dc8ee0b48187cf (diff) | |
download | gem5-1a7d3f9fcb76a68540dd948f91413533a383bfde.tar.xz |
gpu-compute: AMD's baseline GPU model
Diffstat (limited to 'src/gpu-compute/schedule_stage.hh')
-rw-r--r-- | src/gpu-compute/schedule_stage.hh | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/gpu-compute/schedule_stage.hh b/src/gpu-compute/schedule_stage.hh new file mode 100644 index 000000000..26eb9a25b --- /dev/null +++ b/src/gpu-compute/schedule_stage.hh @@ -0,0 +1,95 @@ +/* + * Copyright (c) 2014-2015 Advanced Micro Devices, Inc. + * All rights reserved. + * + * For use for simulation and test purposes only + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. Neither the name of the copyright holder nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * Author: Sooraj Puthoor + */ + +#ifndef __SCHEDULE_STAGE_HH__ +#define __SCHEDULE_STAGE_HH__ + +#include <utility> +#include <vector> + +#include "gpu-compute/exec_stage.hh" +#include "gpu-compute/scheduler.hh" +#include "gpu-compute/scoreboard_check_stage.hh" + +// Schedule or execution arbitration stage. +// From the pool of ready waves in the ready list, +// one wave is selected for each execution resource. +// The selection is made based on a scheduling policy + +class ComputeUnit; +class Wavefront; + +struct ComputeUnitParams; + +class ScheduleStage +{ + public: + ScheduleStage(const ComputeUnitParams *params); + ~ScheduleStage(); + void init(ComputeUnit *cu); + void exec(); + void arbitrate(); + // Stats related variables and methods + std::string name() { return _name; } + void regStats(); + + private: + ComputeUnit *computeUnit; + uint32_t numSIMDs; + uint32_t numMemUnits; + + // Each execution resource will have its own + // scheduler and a dispatch list + std::vector<Scheduler> scheduler; + + // Stores the status of waves. A READY implies the + // wave is ready to be scheduled this cycle and + // is already present in the readyList + std::vector<std::vector<std::pair<Wavefront*, WAVE_STATUS>>*> + waveStatusList; + + // List of waves which will be dispatched to + // each execution resource. A FILLED implies + // dispatch list is non-empty and + // execution unit has something to execute + // this cycle. Currently, the dispatch list of + // an execution resource can hold only one wave because + // an execution resource can execute only one wave in a cycle. + std::vector<std::pair<Wavefront*, DISPATCH_STATUS>> *dispatchList; + + std::string _name; +}; + +#endif // __SCHEDULE_STAGE_HH__ |