54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// See LICENSE for license details.
|
|
|
|
#ifndef _MM_EMULATOR_DRAMSIM2_H
|
|
#define _MM_EMULATOR_DRAMSIM2_H
|
|
|
|
#include "mm.h"
|
|
#include <DRAMSim.h>
|
|
#include <map>
|
|
#include <queue>
|
|
#include <stdint.h>
|
|
|
|
class mm_dramsim2_t : public mm_t
|
|
{
|
|
public:
|
|
mm_dramsim2_t() : store_inflight(false), store_count(0) {}
|
|
|
|
virtual void init(size_t sz, int word_size, int line_size);
|
|
|
|
virtual bool req_cmd_ready() { return mem->willAcceptTransaction() && !store_inflight; }
|
|
virtual bool req_data_ready() { return mem->willAcceptTransaction() && store_inflight; }
|
|
virtual bool resp_valid() { return !resp.empty(); }
|
|
virtual uint64_t resp_tag() { return resp_valid() ? resp.front().first : 0; }
|
|
virtual void* resp_data() { return resp_valid() ? &resp.front().second[0] : &dummy_data[0]; }
|
|
|
|
virtual void tick
|
|
(
|
|
bool req_cmd_val,
|
|
bool req_cmd_store,
|
|
uint64_t req_cmd_addr,
|
|
uint64_t req_cmd_tag,
|
|
bool req_data_val,
|
|
void* req_data_bits,
|
|
bool resp_rdy
|
|
);
|
|
|
|
|
|
protected:
|
|
DRAMSim::MultiChannelMemorySystem *mem;
|
|
uint64_t cycle;
|
|
|
|
bool store_inflight;
|
|
int store_count;
|
|
uint64_t store_addr;
|
|
std::vector<char> dummy_data;
|
|
|
|
std::map<uint64_t,uint64_t> req;
|
|
std::queue<std::pair<uint64_t, std::vector<char>>> resp;
|
|
|
|
void read_complete(unsigned id, uint64_t address, uint64_t clock_cycle);
|
|
void write_complete(unsigned id, uint64_t address, uint64_t clock_cycle);
|
|
};
|
|
|
|
#endif
|