b63eb1302b
for HSAIL an operand's indices into the register files may be calculated trivially, because the operands are always read from a register file, or are an immediate. for machine ISA, however, an op selector may specify special registers, or may specify special SGPRs with an alias op selector value. the location of some of the special registers values are dependent on the size of the RF in some cases. here we add a way for the underlying getRegisterIndex() method to know about the size of the RFs, so that it may find the relative positions of the special register values.
102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
/*
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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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#ifndef __CONDITION_REGISTER_STATE_HH__
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#define __CONDITION_REGISTER_STATE_HH__
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#include <string>
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#include <vector>
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#include "gpu-compute/misc.hh"
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class ComputeUnit;
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class GPUStaticInst;
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class Shader;
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class Wavefront;
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// Condition Register State (used only when executing HSAIL)
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class ConditionRegisterState
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{
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public:
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ConditionRegisterState();
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void init(uint32_t _size);
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const std::string name() const { return _name; }
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void setParent(ComputeUnit *_computeUnit);
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void regStats() { }
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template<typename T>
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T
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read(int regIdx, int threadId)
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{
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bool tmp = c_reg[regIdx][threadId];
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T *p0 = (T*)(&tmp);
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return *p0;
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}
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template<typename T>
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void
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write(int regIdx, int threadId, T value)
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{
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c_reg[regIdx][threadId] = (bool)(value & 0x01);
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}
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void
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markReg(int regIdx, uint8_t value)
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{
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busy.at(regIdx) = value;
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}
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uint8_t
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regBusy(int idx)
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{
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uint8_t status = busy.at(idx);
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return status;
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}
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int numRegs() { return c_reg.size(); }
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void exec(GPUDynInstPtr ii, Wavefront *w);
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private:
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ComputeUnit* computeUnit;
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std::string _name;
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// Condition Register state
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std::vector<VectorMask> c_reg;
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// flag indicating if a register is busy
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std::vector<uint8_t> busy;
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};
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#endif
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