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__