2016-01-19 20:28:22 +01:00
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/*
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* Copyright (c) 2015 Advanced Micro Devices, Inc.
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* All rights reserved.
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*
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* For use for simulation and test purposes only
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* Author: John Kalamatianos
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*/
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#include "gpu-compute/condition_register_state.hh"
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#include "gpu-compute/compute_unit.hh"
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#include "gpu-compute/gpu_static_inst.hh"
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#include "gpu-compute/shader.hh"
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#include "gpu-compute/wavefront.hh"
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ConditionRegisterState::ConditionRegisterState()
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{
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computeUnit = nullptr;
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c_reg.clear();
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busy.clear();
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}
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void
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ConditionRegisterState::setParent(ComputeUnit *_computeUnit)
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{
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computeUnit = _computeUnit;
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_name = computeUnit->name() + ".CondRegState";
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}
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void
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ConditionRegisterState::init(uint32_t _size)
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{
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c_reg.resize(_size);
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busy.resize(_size, 0);
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}
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void
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2016-10-27 04:47:49 +02:00
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ConditionRegisterState::exec(GPUDynInstPtr ii, Wavefront *w)
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2016-01-19 20:28:22 +01:00
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{
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// iterate over all operands
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for (auto i = 0; i < ii->getNumOperands(); ++i) {
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// is this a condition register destination operand?
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if (ii->isCondRegister(i) && ii->isDstOperand(i)) {
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// mark the register as busy
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2016-10-27 04:47:49 +02:00
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markReg(ii->getRegisterIndex(i, ii), 1);
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2016-01-19 20:28:22 +01:00
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uint32_t pipeLen = w->computeUnit->spBypassLength();
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// schedule an event for marking the register as ready
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w->computeUnit->
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2016-10-27 04:47:49 +02:00
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registerEvent(w->simdId, ii->getRegisterIndex(i, ii),
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2016-01-19 20:28:22 +01:00
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ii->getOperandSize(i),
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w->computeUnit->shader->tick_cnt +
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w->computeUnit->shader->ticks(pipeLen), 0);
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}
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}
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}
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