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/kernel_cfg.hh | |
parent | 28e353e0403ea379d244a418e8dc8ee0b48187cf (diff) | |
download | gem5-1a7d3f9fcb76a68540dd948f91413533a383bfde.tar.xz |
gpu-compute: AMD's baseline GPU model
Diffstat (limited to 'src/gpu-compute/kernel_cfg.hh')
-rw-r--r-- | src/gpu-compute/kernel_cfg.hh | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/src/gpu-compute/kernel_cfg.hh b/src/gpu-compute/kernel_cfg.hh new file mode 100644 index 000000000..74ea861d8 --- /dev/null +++ b/src/gpu-compute/kernel_cfg.hh @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2012-2015 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: Steve Reinhardt + */ + +#ifndef __KERNEL_CFG_HH__ +#define __KERNEL_CFG_HH__ + +#include <cstddef> +#include <cstdint> +#include <memory> +#include <set> +#include <vector> + + +class GPUStaticInst; +class HsailCode; + +struct BasicBlock +{ + BasicBlock(uint32_t num, GPUStaticInst* begin) : + id(num), size(0), firstInstruction(begin) + { + } + + bool + isEntry() const + { + return !id; + } + + bool + isExit() const + { + return !size; + } + + /** + * Unique identifier for the block within a given kernel. + */ + const uint32_t id; + + /** + * Number of instructions contained in the block + */ + size_t size; + + /** + * Pointer to first instruction of the block. + */ + GPUStaticInst* firstInstruction; + + /** + * Identifiers of the blocks that follow (are reachable from) this block. + */ + std::set<uint32_t> successorIds; + + /** + * Identifiers of the blocks that will be visited from this block. + */ + std::set<uint32_t> postDominatorIds; +}; + +class ControlFlowInfo +{ +public: + + /** + * Compute immediate post-dominator instruction for kernel instructions. + */ + static void assignImmediatePostDominators( + const std::vector<GPUStaticInst*>& instructions); + +private: + ControlFlowInfo(const std::vector<GPUStaticInst*>& instructions); + + GPUStaticInst* lastInstruction(const BasicBlock* block) const; + + BasicBlock* basicBlock(int inst_num) const; + + BasicBlock* postDominator(const BasicBlock* block) const; + + void createBasicBlocks(); + + void connectBasicBlocks(); + + void findPostDominators(); + + void findImmediatePostDominators(); + + void printBasicBlocks() const; + + void printBasicBlockDot() const; + + void printPostDominators() const; + + void printImmediatePostDominators() const; + + std::vector<std::unique_ptr<BasicBlock>> basicBlocks; + std::vector<GPUStaticInst*> instructions; +}; + +#endif // __KERNEL_CFG_HH__ |