102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
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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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#ifndef __VECTOR_REGISTER_STATE_HH__
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#define __VECTOR_REGISTER_STATE_HH__
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#include <array>
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#include <cassert>
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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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// Vector Register State per SIMD unit (contents of the vector
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// registers in the VRF of the SIMD)
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class VecRegisterState
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{
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public:
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VecRegisterState();
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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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// Access methods
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template<typename T>
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T
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read(int regIdx, int threadId=0) {
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T *p0;
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assert(sizeof(T) == 4 || sizeof(T) == 8);
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if (sizeof(T) == 4) {
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p0 = (T*)(&s_reg[regIdx][threadId]);
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} else {
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p0 = (T*)(&d_reg[regIdx][threadId]);
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}
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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(unsigned int regIdx, T value, int threadId=0) {
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T *p0;
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assert(sizeof(T) == 4 || sizeof(T) == 8);
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if (sizeof(T) == 4) {
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p0 = (T*)(&s_reg[regIdx][threadId]);
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} else {
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p0 = (T*)(&d_reg[regIdx][threadId]);
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}
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*p0 = value;
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}
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// (Single Precision) Vector Register File size.
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int regSize() { return s_reg.size(); }
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private:
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ComputeUnit *computeUnit;
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std::string _name;
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// 32-bit Single Precision Vector Register State
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std::vector<std::array<uint32_t, VSZ>> s_reg;
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// 64-bit Double Precision Vector Register State
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std::vector<std::array<uint64_t, VSZ>> d_reg;
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};
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#endif // __VECTOR_REGISTER_STATE_HH__
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