ExecutionPipelineResourceTable.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file ExecutionPipelineResourceTable.hh
 *
 * Declaration of the ExecutionPipelineResourceTable class.
 *
 * @author Heikki Kultala 2009 (heikki.kultala-no-spam-tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_EXECUTION_PIPELINE_RESOURCE_TABLE_HH
#define TTA_EXECUTION_PIPELINE_RESOURCE_TABLE_HH
 
#include <string>
#include <map>
#include <vector>
 
namespace TTAMachine {
    class FunctionUnit;
}
 
class ExecutionPipelineResourceTable {
public:
    inline unsigned int numberOfResources() const;
    inline unsigned int pipelineSize() const;
    inline unsigned int maximalLatency() const;
 
    inline bool operationPipeline(int op, int cycle, int res) const;
 
    inline int operationIndex(const std::string& opName) const;
 
    inline bool hasOperation(const std::string& opName) const;
 
    inline const std::map<int,int>& operationLatency(
        unsigned int operationIndex) const;
 
 
    inline const std::string& name() const;
 
    static const ExecutionPipelineResourceTable& resourceTable(
        const TTAMachine::FunctionUnit& fu);
 
    static void finalize();
private:
    ExecutionPipelineResourceTable(const TTAMachine::FunctionUnit& fu);
 
    void setLatency(
        const std::string& opName,
        const int output,
        const int latency);
 
    void setResourceUse(
        const std::string& opName, const int cycle, const int resIndex);
 
    std::string name_;
 
    /// Type for resource vector, represents one cycle of use
    typedef std::vector<bool> ResourceVector;
 
    /// Type for resource reservation table, resource vector x latency
    typedef std::vector<ResourceVector> ResourceTable;
 
    typedef std::map<const TTAMachine::FunctionUnit*, 
                     ExecutionPipelineResourceTable*> ResourceTableMap;
 
    /// Resource and ports vector width, depends on particular FU
    int numberOfResources_;
    /// Maximal latency of operation in FU
    unsigned int maximalLatency_;
    /// Operations supported, name - index to operation pipeline vector
    std::map<std::string, int> operationSupported_;
    // latencies of all operations supported by this FU.
    std::vector<std::map<int,int> > operationLatencies_;
    /// Pipelines for operations
    std::vector<ResourceTable> operationPipelines_;
 
    /// Contains these tables for all FU's
    static ResourceTableMap allResourceTables_;
};
 
#include "ExecutionPipelineResourceTable.icc"
 
#endif