Subversion Repositories riscv_vhdl

/**
 * @file
 * @copyright  Copyright 2016 GNSS Sensor Ltd. All right reserved.
 * @author     Sergey Khabarov - sergeykhbr@gmail.com
 * @brief      Debug Support Unit (DSU) functional model.
 *
 * @details    DSU supports both types of transaction: blocking and
 *             non-blocking it allows to interact with SystemC in the
 *             same manner as with the Functional model.
 * @note       CPU Functional model must implement non-blocking interface
 */
 
#ifndef __DEBUGGER_COMMON_DEBUG_DSU_H__
#define __DEBUGGER_COMMON_DEBUG_DSU_H__
 
#include <iclass.h>
#include <iservice.h>
#include "coreservices/imemop.h"
#include "coreservices/ireset.h"
#include "coreservices/icpugen.h"
#include "coreservices/idsugen.h"
 
namespace debugger {
 
class DSU : public IService,
            public IMemoryOperation,
            public IDbgNbResponse,
            public IDsuGeneric {
 public:
    explicit DSU(const char *name);
    ~DSU();
 
    /** IService interface */
    virtual void postinitService();
 
    /** IMemoryOperation */
    virtual ETransStatus b_transport(Axi4TransactionType *trans);
    virtual ETransStatus nb_transport(Axi4TransactionType *trans,
                                      IAxi4NbResponse *cb);
 
    /** IDbgNbResponse */
    virtual void nb_response_debug_port(DebugPortTransactionType *trans);
 
    /** IDsuGeneric */
    virtual void incrementRdAccess(int mst_id);
    virtual void incrementWrAccess(int mst_id);
 
 private:
    void readLocal(uint64_t off, Axi4TransactionType *trans);
    void writeLocal(uint64_t off, Axi4TransactionType *trans);
 
 private:
    AttributeType cpu_;
    AttributeType bus_;
    ICpuGeneric *icpu_;
    IResetListener *icpurst_;
    IMemoryOperation *ibus_;
    uint64_t shifter32_;
    uint64_t wdata64_;
    uint64_t soft_reset_;
 
    struct nb_trans_type {
        Axi4TransactionType *p_axi_trans;
        IAxi4NbResponse *iaxi_cb;
        DebugPortTransactionType dbg_trans;
    } nb_trans_;
 
    static const int BUS_MASTERS_MAX = 64;
    struct BusUtilType {
        uint64_t w_cnt;
        uint64_t r_cnt;
    } info_[BUS_MASTERS_MAX];
};
 
DECLARE_CLASS(DSU)
 
}  // namespace debugger
 
#endif  // __DEBUGGER_COMMON_DEBUG_DSU_H__