00001 // 00002 // Copyright (c) 2005-2008 Kenichi Watanabe. 00003 // Copyright (c) 2005-2008 Yasuhiro Watari. 00004 // Copyright (c) 2005-2008 Hironori Ichibayashi. 00005 // Copyright (c) 2008-2009 Kazuo Horio. 00006 // Copyright (c) 2009-2013 Naruki Kurata. 00007 // Copyright (c) 2005-2013 Ryota Shioya. 00008 // Copyright (c) 2005-2013 Masahiro Goshima. 00009 // 00010 // This software is provided 'as-is', without any express or implied 00011 // warranty. In no event will the authors be held liable for any damages 00012 // arising from the use of this software. 00013 // 00014 // Permission is granted to anyone to use this software for any purpose, 00015 // including commercial applications, and to alter it and redistribute it 00016 // freely, subject to the following restrictions: 00017 // 00018 // 1. The origin of this software must not be misrepresented; you must not 00019 // claim that you wrote the original software. If you use this software 00020 // in a product, an acknowledgment in the product documentation would be 00021 // appreciated but is not required. 00022 // 00023 // 2. Altered source versions must be plainly marked as such, and must not be 00024 // misrepresented as being the original software. 00025 // 00026 // 3. This notice may not be removed or altered from any source 00027 // distribution. 00028 // 00029 // 00030 00031 00032 #ifndef __PIPELINE_NODE_IF_H__ 00033 #define __PIPELINE_NODE_IF_H__ 00034 00035 #include "Sim/Op/OpArray/OpArray.h" 00036 #include "Sim/Foundation/TimeWheel/ClockedResourceIF.h" 00037 00038 namespace Onikiri 00039 { 00040 class Pipeline; 00041 class Core; 00042 00043 // PipelineNodeC^tF[X 00044 class PipelineNodeIF/* : public ClockedResourceIF*/ 00045 { 00046 public: 00047 PipelineNodeIF(){} 00048 virtual ~PipelineNodeIF(){} 00049 00050 // OpCommit 00051 virtual void Commit( OpIterator op ) = 0; 00052 00053 // OpCancel 00054 virtual void Cancel( OpIterator op ) = 0; 00055 00056 // ゥOp 00057 virtual void Retire( OpIterator op ) = 0; 00058 00059 // OpFlush 00060 virtual void Flush( OpIterator op ) = 0; 00061 00062 // pCvCXg[ 00063 virtual void StallThisCycle() = 0; 00064 // pCvCcycleXg[ 00065 virtual void StallNextCycle(int cycle) = 0; 00066 00067 // Pipeline 00068 virtual Pipeline* GetLowerPipeline() = 0; 00069 00070 // PipelineNode 00071 virtual PipelineNodeIF* GetLowerPipelineNode() = 0; 00072 00073 // pCvCm[h 00074 virtual PipelineNodeIF* GetUpperPipelineNode() = 0; 00075 00076 // Set lower pipeline nodes. 00077 virtual void SetLowerPipelineNode( PipelineNodeIF* lower ) = 0; 00078 00079 // This method is called when an op exits an upper pipeline. 00080 // This method is used for a pipeline writing a buffer(ex. Dispatcher). 00081 virtual void ExitUpperPipeline( OpIterator op ) = 0; 00082 00083 // This method is called when an op exits an lower pipeline. 00084 virtual void ExitLowerPipeline( OpIterator op ) = 0; 00085 00086 // Returns whether this node can allocate entries or not. 00087 virtual bool CanAllocate( int ops ) = 0; 00088 }; 00089 00090 }; // namespace Onikiri 00091 00092 #endif // __PIPELINENODEIF_H__ 00093