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[/] [riscv_vhdl/] [trunk/] [debugger/] [src/] [cpu_sysc_plugin/] [riverlib/] [cache/] [dcache.h] - Rev 4
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/** * @file * @copyright Copyright 2016 GNSS Sensor Ltd. All right reserved. * @author Sergey Khabarov - sergeykhbr@gmail.com * @brief Data Cache. */ #ifndef __DEBUGGER_RIVERLIB_DCACHE_H__ #define __DEBUGGER_RIVERLIB_DCACHE_H__ #include <systemc.h> #include "../river_cfg.h" namespace debugger { SC_MODULE(DCache) { sc_in<bool> i_clk; sc_in<bool> i_nrst; // Data path: sc_in<bool> i_req_data_valid; sc_in<bool> i_req_data_write; sc_in<sc_uint<2>> i_req_data_sz; sc_in<sc_uint<BUS_ADDR_WIDTH>> i_req_data_addr; sc_in<sc_uint<RISCV_ARCH>> i_req_data_data; sc_out<bool> o_req_data_ready; sc_out<bool> o_resp_data_valid; sc_out<sc_uint<BUS_ADDR_WIDTH>> o_resp_data_addr; sc_out<sc_uint<RISCV_ARCH>> o_resp_data_data; sc_in<bool> i_resp_data_ready; // Memory interface: sc_in<bool> i_req_mem_ready; sc_out<bool> o_req_mem_valid; sc_out<bool> o_req_mem_write; sc_out<sc_uint<BUS_ADDR_WIDTH>> o_req_mem_addr; sc_out<sc_uint<BUS_DATA_BYTES>> o_req_mem_strob; sc_out<sc_uint<BUS_DATA_WIDTH>> o_req_mem_data; sc_in<bool> i_resp_mem_data_valid; sc_in<sc_uint<BUS_DATA_WIDTH>> i_resp_mem_data; sc_out<sc_uint<2>> o_dstate; void comb(); void registers(); SC_HAS_PROCESS(DCache); DCache(sc_module_name name_); void generateVCD(sc_trace_file *i_vcd, sc_trace_file *o_vcd); private: enum EState { State_Idle, State_WaitGrant, State_WaitResp, State_WaitAccept }; struct RegistersType { sc_signal<sc_uint<BUS_DATA_WIDTH>> dline_data; sc_signal<sc_uint<BUS_ADDR_WIDTH>> dline_addr_req; sc_signal<sc_uint<2>> dline_size_req; sc_signal<sc_uint<2>> state; } v, r; bool w_wait_response; }; } // namespace debugger #endif // __DEBUGGER_RIVERLIB_DCACHE_H__