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Diffstat (limited to 'src/gpu-compute/condition_register_state.hh')
-rw-r--r-- | src/gpu-compute/condition_register_state.hh | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/gpu-compute/condition_register_state.hh b/src/gpu-compute/condition_register_state.hh new file mode 100644 index 000000000..139874a66 --- /dev/null +++ b/src/gpu-compute/condition_register_state.hh @@ -0,0 +1,101 @@ +/* + * Copyright (c) 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: John Kalamatianos + */ + +#ifndef __CONDITION_REGISTER_STATE_HH__ +#define __CONDITION_REGISTER_STATE_HH__ + +#include <string> +#include <vector> + +#include "gpu-compute/misc.hh" + +class ComputeUnit; +class GPUStaticInst; +class Shader; +class Wavefront; + +// Condition Register State (used only when executing HSAIL) +class ConditionRegisterState +{ + public: + ConditionRegisterState(); + void init(uint32_t _size); + const std::string name() const { return _name; } + void setParent(ComputeUnit *_computeUnit); + void regStats() { } + + template<typename T> + T + read(int regIdx, int threadId) + { + bool tmp = c_reg[regIdx][threadId]; + T *p0 = (T*)(&tmp); + + return *p0; + } + + template<typename T> + void + write(int regIdx, int threadId, T value) + { + c_reg[regIdx][threadId] = (bool)(value & 0x01); + } + + void + markReg(int regIdx, uint8_t value) + { + busy.at(regIdx) = value; + } + + uint8_t + regBusy(int idx) + { + uint8_t status = busy.at(idx); + return status; + } + + int numRegs() { return c_reg.size(); } + void exec(GPUStaticInst *ii, Wavefront *w); + + private: + ComputeUnit* computeUnit; + std::string _name; + // Condition Register state + std::vector<VectorMask> c_reg; + // flag indicating if a register is busy + std::vector<uint8_t> busy; +}; + +#endif |