refactor RTL sim, added DRAM stalls support
This commit is contained in:
@@ -2,166 +2,129 @@
|
||||
#include <iostream>
|
||||
#include <iomanip>
|
||||
|
||||
unsigned long time_stamp = 0;
|
||||
|
||||
double sc_time_stamp() {
|
||||
return time_stamp / 1000.0;
|
||||
}
|
||||
|
||||
Simulator::Simulator(RAM *ram)
|
||||
: start_pc(0), curr_cycle(0), stop(true), unit_test(true), stats_static_inst(0), stats_dynamic_inst(-1),
|
||||
stats_total_cycles(0), stats_fwd_stalls(0), stats_branch_stalls(0),
|
||||
debug_state(0), ibus_state(0), dbus_state(0), debug_return(0),
|
||||
debug_wait_num(0), debug_inst_num(0), debug_end_wait(0), debug_debugAddr(0) {
|
||||
|
||||
this->ram = ram;
|
||||
: total_cycles_(0)
|
||||
, dram_stalled_(false)
|
||||
, I_dram_stalled_(false) {
|
||||
ram_ = ram;
|
||||
|
||||
#ifdef USE_MULTICORE
|
||||
this->vortex = new VVortex_SOC();
|
||||
vortex_ = new VVortex_SOC();
|
||||
#else
|
||||
this->vortex = new VVortex();
|
||||
vortex_ = new VVortex();
|
||||
#endif
|
||||
|
||||
#ifdef VCD_OUTPUT
|
||||
Verilated::traceEverOn(true);
|
||||
this->m_trace = new VerilatedVcdC;
|
||||
this->vortex->trace(m_trace, 99);
|
||||
this->m_trace->open("trace.vcd");
|
||||
#endif
|
||||
|
||||
this->results.open("../results.txt");
|
||||
trace_ = new VerilatedVcdC;
|
||||
vortex_->trace(trace_, 99);
|
||||
trace_->open("trace.vcd");
|
||||
#endif
|
||||
}
|
||||
|
||||
Simulator::~Simulator() {
|
||||
#ifdef VCD_OUTPUT
|
||||
m_trace->close();
|
||||
trace_->close();
|
||||
#endif
|
||||
this->results.close();
|
||||
delete this->vortex;
|
||||
delete vortex_;
|
||||
}
|
||||
|
||||
void Simulator::print_stats(bool cycle_test) {
|
||||
if (cycle_test) {
|
||||
this->results << std::left;
|
||||
// this->results << "# Static Instructions:\t" << std::dec << this->stats_static_inst << std::endl;
|
||||
this->results << std::setw(24) << "# Dynamic Instructions:" << std::dec << this->stats_dynamic_inst << std::endl;
|
||||
this->results << std::setw(24) << "# of total cycles:" << std::dec << this->stats_total_cycles << std::endl;
|
||||
this->results << std::setw(24) << "# of forwarding stalls:" << std::dec << this->stats_fwd_stalls << std::endl;
|
||||
this->results << std::setw(24) << "# of branch stalls:" << std::dec << this->stats_branch_stalls << std::endl;
|
||||
this->results << std::setw(24) << "# CPI:" << std::dec << (double)this->stats_total_cycles / (double)this->stats_dynamic_inst << std::endl;
|
||||
this->results << std::setw(24) << "# time to simulate: " << std::dec << this->stats_sim_time << " milliseconds" << std::endl;
|
||||
} else {
|
||||
this->results << std::left;
|
||||
this->results << std::setw(24) << "# of total cycles:" << std::dec << this->stats_total_cycles << std::endl;
|
||||
this->results << std::setw(24) << "# time to simulate: " << std::dec << this->stats_sim_time << " milliseconds" << std::endl;
|
||||
}
|
||||
|
||||
uint32_t status;
|
||||
ram->getWord(0, &status);
|
||||
|
||||
if (this->unit_test) {
|
||||
if (status == 1) {
|
||||
this->results << std::setw(24) << "# GRADE:"
|
||||
<< "PASSING\n";
|
||||
} else {
|
||||
this->results << std::setw(24) << "# GRADE:"
|
||||
<< "Failed on test: " << status << "\n";
|
||||
}
|
||||
} else {
|
||||
this->results << std::setw(24) << "# GRADE:"
|
||||
<< "N/A [NOT A UNIT TEST]\n";
|
||||
}
|
||||
|
||||
this->stats_static_inst = 0;
|
||||
this->stats_dynamic_inst = -1;
|
||||
this->stats_total_cycles = 0;
|
||||
this->stats_fwd_stalls = 0;
|
||||
this->stats_branch_stalls = 0;
|
||||
void Simulator::print_stats(std::ostream& out) {
|
||||
out << std::left;
|
||||
out << std::setw(24) << "# of total cycles:" << std::dec << total_cycles_ << std::endl;
|
||||
}
|
||||
|
||||
#ifndef USE_MULTICORE
|
||||
|
||||
bool Simulator::ibus_driver() {
|
||||
void Simulator::ibus_driver() {
|
||||
// Iterate through each element, and get pop index
|
||||
int dequeue_index = -1;
|
||||
bool dequeue_valid = false;
|
||||
for (int i = 0; i < this->I_dram_req_vec.size(); i++) {
|
||||
if (this->I_dram_req_vec[i].cycles_left > 0) {
|
||||
this->I_dram_req_vec[i].cycles_left -= 1;
|
||||
for (int i = 0; i < I_dram_req_vec_.size(); i++) {
|
||||
if (I_dram_req_vec_[i].cycles_left > 0) {
|
||||
I_dram_req_vec_[i].cycles_left -= 1;
|
||||
}
|
||||
|
||||
if ((this->I_dram_req_vec[i].cycles_left == 0) && (!dequeue_valid)) {
|
||||
if ((I_dram_req_vec_[i].cycles_left == 0) && (!dequeue_valid)) {
|
||||
dequeue_index = i;
|
||||
dequeue_valid = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (vortex->I_dram_req) {
|
||||
if (vortex_->I_dram_req && !I_dram_stalled_) {
|
||||
// std::cout << "Icache Dram Request received!\n";
|
||||
if (vortex->I_dram_req_read) {
|
||||
if (vortex_->I_dram_req_read) {
|
||||
// std::cout << "Icache Dram Request is read!\n";
|
||||
// Need to add an element
|
||||
dram_req_t dram_req;
|
||||
dram_req.cycles_left = vortex->I_dram_expected_lat;
|
||||
dram_req.data_length = vortex->I_dram_req_size / 4;
|
||||
dram_req.base_addr = vortex->I_dram_req_addr;
|
||||
dram_req.cycles_left = DRAM_LATENCY;
|
||||
dram_req.data_length = vortex_->I_dram_req_size / 4;
|
||||
dram_req.base_addr = vortex_->I_dram_req_addr;
|
||||
dram_req.data = (unsigned *)malloc(dram_req.data_length * sizeof(unsigned));
|
||||
|
||||
for (int i = 0; i < dram_req.data_length; i++) {
|
||||
unsigned curr_addr = dram_req.base_addr + (i * 4);
|
||||
unsigned data_rd;
|
||||
ram->getWord(curr_addr, &data_rd);
|
||||
ram_->getWord(curr_addr, &data_rd);
|
||||
dram_req.data[i] = data_rd;
|
||||
}
|
||||
// std::cout << "Fill Req -> Addr: " << std::hex << dram_req.base_addr << std::dec << "\n";
|
||||
this->I_dram_req_vec.push_back(dram_req);
|
||||
I_dram_req_vec_.push_back(dram_req);
|
||||
}
|
||||
|
||||
if (vortex->I_dram_req_write) {
|
||||
unsigned base_addr = vortex->I_dram_req_addr;
|
||||
unsigned data_length = vortex->I_dram_req_size / 4;
|
||||
if (vortex_->I_dram_req_write) {
|
||||
unsigned base_addr = vortex_->I_dram_req_addr;
|
||||
unsigned data_length = vortex_->I_dram_req_size / 4;
|
||||
|
||||
for (int i = 0; i < data_length; i++) {
|
||||
unsigned curr_addr = base_addr + (i * 4);
|
||||
unsigned data_wr = vortex->I_dram_req_data[i];
|
||||
ram->writeWord(curr_addr, &data_wr);
|
||||
unsigned data_wr = vortex_->I_dram_req_data[i];
|
||||
ram_->writeWord(curr_addr, &data_wr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (vortex->I_dram_fill_accept && dequeue_valid) {
|
||||
if (vortex_->I_dram_fill_accept && dequeue_valid) {
|
||||
// std::cout << "Icache Dram Response Sending...!\n";
|
||||
|
||||
vortex->I_dram_fill_rsp = 1;
|
||||
vortex->I_dram_fill_rsp_addr = this->I_dram_req_vec[dequeue_index].base_addr;
|
||||
// std::cout << "Fill Rsp -> Addr: " << std::hex << (this->I_dram_req_vec[dequeue_index].base_addr) << std::dec << "\n";
|
||||
vortex_->I_dram_fill_rsp = 1;
|
||||
vortex_->I_dram_fill_rsp_addr = I_dram_req_vec_[dequeue_index].base_addr;
|
||||
// std::cout << "Fill Rsp -> Addr: " << std::hex << (I_dram_req_vec_[dequeue_index].base_addr) << std::dec << "\n";
|
||||
|
||||
for (int i = 0; i < this->I_dram_req_vec[dequeue_index].data_length; i++) {
|
||||
vortex->I_dram_fill_rsp_data[i] = this->I_dram_req_vec[dequeue_index].data[i];
|
||||
for (int i = 0; i < I_dram_req_vec_[dequeue_index].data_length; i++) {
|
||||
vortex_->I_dram_fill_rsp_data[i] = I_dram_req_vec_[dequeue_index].data[i];
|
||||
}
|
||||
free(this->I_dram_req_vec[dequeue_index].data);
|
||||
free(I_dram_req_vec_[dequeue_index].data);
|
||||
|
||||
this->I_dram_req_vec.erase(this->I_dram_req_vec.begin() + dequeue_index);
|
||||
I_dram_req_vec_.erase(I_dram_req_vec_.begin() + dequeue_index);
|
||||
} else {
|
||||
vortex->I_dram_fill_rsp = 0;
|
||||
vortex->I_dram_fill_rsp_addr = 0;
|
||||
vortex_->I_dram_fill_rsp = 0;
|
||||
vortex_->I_dram_fill_rsp_addr = 0;
|
||||
}
|
||||
|
||||
return false;
|
||||
#ifdef ENABLE_DRAM_STALLS
|
||||
I_dram_stalled_ = false;
|
||||
if (0 == (total_cycles_ % DRAM_STALLS_MODULO)) {
|
||||
I_dram_stalled_ = true;
|
||||
} else
|
||||
if (I_dram_req_vec_.size() >= DRAM_RQ_SIZE) {
|
||||
I_dram_stalled_ = true;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
bool Simulator::dbus_driver() {
|
||||
void Simulator::dbus_driver() {
|
||||
// Iterate through each element, and get pop index
|
||||
int dequeue_index = -1;
|
||||
bool dequeue_valid = false;
|
||||
for (int i = 0; i < this->dram_req_vec.size(); i++) {
|
||||
if (this->dram_req_vec[i].cycles_left > 0) {
|
||||
this->dram_req_vec[i].cycles_left -= 1;
|
||||
for (int i = 0; i < dram_req_vec_.size(); i++) {
|
||||
if (dram_req_vec_[i].cycles_left > 0) {
|
||||
dram_req_vec_[i].cycles_left -= 1;
|
||||
}
|
||||
|
||||
if ((this->dram_req_vec[i].cycles_left == 0) && (!dequeue_valid)) {
|
||||
if ((dram_req_vec_[i].cycles_left == 0) && (!dequeue_valid)) {
|
||||
dequeue_index = i;
|
||||
dequeue_valid = true;
|
||||
}
|
||||
@@ -169,113 +132,117 @@ bool Simulator::dbus_driver() {
|
||||
|
||||
#ifdef USE_MULTICORE
|
||||
|
||||
if (vortex->out_dram_req) {
|
||||
if (vortex->out_dram_req_read) {
|
||||
if (vortex_->out_dram_req && !dram_stalled_) {
|
||||
if (vortex_->out_dram_req_read) {
|
||||
// Need to add an element
|
||||
dram_req_t dram_req;
|
||||
dram_req.cycles_left = vortex->out_dram_expected_lat;
|
||||
dram_req.data_length = vortex->out_dram_req_size / 4;
|
||||
dram_req.base_addr = vortex->out_dram_req_addr;
|
||||
dram_req.cycles_left = DRAM_LATENCY;
|
||||
dram_req.data_length = vortex_->out_dram_req_size / 4;
|
||||
dram_req.base_addr = vortex_->out_dram_req_addr;
|
||||
dram_req.data = (unsigned *)malloc(dram_req.data_length * sizeof(unsigned));
|
||||
|
||||
for (int i = 0; i < dram_req.data_length; i++) {
|
||||
unsigned curr_addr = dram_req.base_addr + (i * 4);
|
||||
unsigned data_rd;
|
||||
ram->getWord(curr_addr, &data_rd);
|
||||
ram_->getWord(curr_addr, &data_rd);
|
||||
dram_req.data[i] = data_rd;
|
||||
}
|
||||
// std::cout << "Fill Req -> Addr: " << std::hex << dram_req.base_addr << std::dec << "\n";
|
||||
this->dram_req_vec.push_back(dram_req);
|
||||
dram_req_vec_.push_back(dram_req);
|
||||
}
|
||||
|
||||
if (vortex->out_dram_req_write) {
|
||||
unsigned base_addr = vortex->out_dram_req_addr;
|
||||
unsigned data_length = vortex->out_dram_req_size / 4;
|
||||
if (vortex_->out_dram_req_write) {
|
||||
unsigned base_addr = vortex_->out_dram_req_addr;
|
||||
unsigned data_length = vortex_->out_dram_req_size / 4;
|
||||
|
||||
for (int i = 0; i < data_length; i++) {
|
||||
unsigned curr_addr = base_addr + (i * 4);
|
||||
unsigned data_wr = vortex->out_dram_req_data[i];
|
||||
ram->writeWord(curr_addr, &data_wr);
|
||||
unsigned data_wr = vortex_->out_dram_req_data[i];
|
||||
ram_->writeWord(curr_addr, &data_wr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (vortex->out_dram_fill_accept && dequeue_valid) {
|
||||
vortex->out_dram_fill_rsp = 1;
|
||||
vortex->out_dram_fill_rsp_addr = this->dram_req_vec[dequeue_index].base_addr;
|
||||
// std::cout << "Fill Rsp -> Addr: " << std::hex << (this->dram_req_vec[dequeue_index].base_addr) << std::dec << "\n";
|
||||
if (vortex_->out_dram_fill_accept && dequeue_valid) {
|
||||
vortex_->out_dram_fill_rsp = 1;
|
||||
vortex_->out_dram_fill_rsp_addr = dram_req_vec_[dequeue_index].base_addr;
|
||||
|
||||
for (int i = 0; i < this->dram_req_vec[dequeue_index].data_length; i++) {
|
||||
vortex->out_dram_fill_rsp_data[i] = this->dram_req_vec[dequeue_index].data[i];
|
||||
for (int i = 0; i < dram_req_vec_[dequeue_index].data_length; i++) {
|
||||
vortex_->out_dram_fill_rsp_data[i] = dram_req_vec_[dequeue_index].data[i];
|
||||
}
|
||||
free(this->dram_req_vec[dequeue_index].data);
|
||||
free(dram_req_vec_[dequeue_index].data);
|
||||
|
||||
this->dram_req_vec.erase(this->dram_req_vec.begin() + dequeue_index);
|
||||
dram_req_vec_.erase(dram_req_vec_.begin() + dequeue_index);
|
||||
} else {
|
||||
vortex->out_dram_fill_rsp = 0;
|
||||
vortex->out_dram_fill_rsp_addr = 0;
|
||||
vortex_->out_dram_fill_rsp = 0;
|
||||
vortex_->out_dram_fill_rsp_addr = 0;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
if (vortex->dram_req) {
|
||||
if (vortex->dram_req_read) {
|
||||
if (vortex_->dram_req && !dram_stalled_) {
|
||||
if (vortex_->dram_req_read) {
|
||||
// Need to add an element
|
||||
dram_req_t dram_req;
|
||||
dram_req.cycles_left = vortex->dram_expected_lat;
|
||||
dram_req.data_length = vortex->dram_req_size / 4;
|
||||
dram_req.base_addr = vortex->dram_req_addr;
|
||||
dram_req.cycles_left = DRAM_LATENCY;
|
||||
dram_req.data_length = vortex_->dram_req_size / 4;
|
||||
dram_req.base_addr = vortex_->dram_req_addr;
|
||||
dram_req.data = (unsigned *)malloc(dram_req.data_length * sizeof(unsigned));
|
||||
|
||||
for (int i = 0; i < dram_req.data_length; i++) {
|
||||
unsigned curr_addr = dram_req.base_addr + (i * 4);
|
||||
unsigned data_rd;
|
||||
ram->getWord(curr_addr, &data_rd);
|
||||
ram_->getWord(curr_addr, &data_rd);
|
||||
dram_req.data[i] = data_rd;
|
||||
}
|
||||
// std::cout << "Fill Req -> Addr: " << std::hex << dram_req.base_addr << std::dec << "\n";
|
||||
this->dram_req_vec.push_back(dram_req);
|
||||
dram_req_vec_.push_back(dram_req);
|
||||
}
|
||||
|
||||
if (vortex->dram_req_write) {
|
||||
unsigned base_addr = vortex->dram_req_addr;
|
||||
unsigned data_length = vortex->dram_req_size / 4;
|
||||
if (vortex_->dram_req_write) {
|
||||
unsigned base_addr = vortex_->dram_req_addr;
|
||||
unsigned data_length = vortex_->dram_req_size / 4;
|
||||
|
||||
for (int i = 0; i < data_length; i++) {
|
||||
unsigned curr_addr = base_addr + (i * 4);
|
||||
unsigned data_wr = vortex->dram_req_data[i];
|
||||
ram->writeWord(curr_addr, &data_wr);
|
||||
unsigned data_wr = vortex_->dram_req_data[i];
|
||||
ram_->writeWord(curr_addr, &data_wr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (vortex->dram_fill_accept && dequeue_valid) {
|
||||
vortex->dram_fill_rsp = 1;
|
||||
vortex->dram_fill_rsp_addr = this->dram_req_vec[dequeue_index].base_addr;
|
||||
// std::cout << "Fill Rsp -> Addr: " << std::hex << (this->dram_req_vec[dequeue_index].base_addr) << std::dec << "\n";
|
||||
if (vortex_->dram_fill_accept && dequeue_valid) {
|
||||
vortex_->dram_fill_rsp = 1;
|
||||
vortex_->dram_fill_rsp_addr = dram_req_vec_[dequeue_index].base_addr;
|
||||
|
||||
for (int i = 0; i < this->dram_req_vec[dequeue_index].data_length; i++) {
|
||||
vortex->dram_fill_rsp_data[i] = this->dram_req_vec[dequeue_index].data[i];
|
||||
for (int i = 0; i < dram_req_vec_[dequeue_index].data_length; i++) {
|
||||
vortex_->dram_fill_rsp_data[i] = dram_req_vec_[dequeue_index].data[i];
|
||||
}
|
||||
free(this->dram_req_vec[dequeue_index].data);
|
||||
free(dram_req_vec_[dequeue_index].data);
|
||||
|
||||
this->dram_req_vec.erase(this->dram_req_vec.begin() + dequeue_index);
|
||||
dram_req_vec_.erase(dram_req_vec_.begin() + dequeue_index);
|
||||
} else {
|
||||
vortex->dram_fill_rsp = 0;
|
||||
vortex->dram_fill_rsp_addr = 0;
|
||||
vortex_->dram_fill_rsp = 0;
|
||||
vortex_->dram_fill_rsp_addr = 0;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
return false;
|
||||
#ifdef ENABLE_DRAM_STALLS
|
||||
dram_stalled_ = false;
|
||||
if (0 == (total_cycles_ % DRAM_STALLS_MODULO)) {
|
||||
dram_stalled_ = true;
|
||||
} else
|
||||
if (dram_req_vec_.size() >= DRAM_RQ_SIZE) {
|
||||
dram_stalled_ = true;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
void Simulator::io_handler() {
|
||||
#ifdef USE_MULTICORE
|
||||
bool io_valid = false;
|
||||
for (int c = 0; c < vortex->number_cores; c++) {
|
||||
if (vortex->io_valid[c]) {
|
||||
uint32_t data_write = (uint32_t)vortex->io_data[c];
|
||||
for (int c = 0; c < vortex_->number_cores; c++) {
|
||||
if (vortex_->io_valid[c]) {
|
||||
uint32_t data_write = (uint32_t)vortex_->io_data[c];
|
||||
char c = (char)data_write;
|
||||
std::cerr << c;
|
||||
io_valid = true;
|
||||
@@ -285,8 +252,8 @@ void Simulator::io_handler() {
|
||||
std::cout << std::flush;
|
||||
}
|
||||
#else
|
||||
if (vortex->io_valid) {
|
||||
uint32_t data_write = (uint32_t)vortex->io_data;
|
||||
if (vortex_->io_valid) {
|
||||
uint32_t data_write = (uint32_t)vortex_->io_data;
|
||||
char c = (char)data_write;
|
||||
std::cerr << c;
|
||||
std::cout << std::flush;
|
||||
@@ -295,21 +262,21 @@ void Simulator::io_handler() {
|
||||
}
|
||||
|
||||
void Simulator::reset() {
|
||||
vortex->reset = 1;
|
||||
vortex_->reset = 1;
|
||||
this->step();
|
||||
vortex->reset = 0;
|
||||
vortex_->reset = 0;
|
||||
}
|
||||
|
||||
void Simulator::step() {
|
||||
vortex->clk = 0;
|
||||
vortex->eval();
|
||||
vortex_->clk = 0;
|
||||
vortex_->eval();
|
||||
|
||||
#ifdef VCD_OUTPUT
|
||||
m_trace->dump(2 * this->stats_total_cycles + 0);
|
||||
trace_->dump(2 * total_cycles_ + 0);
|
||||
#endif
|
||||
|
||||
vortex->clk = 1;
|
||||
vortex->eval();
|
||||
vortex_->clk = 1;
|
||||
vortex_->eval();
|
||||
|
||||
#ifndef USE_MULTICORE
|
||||
ibus_driver();
|
||||
@@ -319,11 +286,10 @@ void Simulator::step() {
|
||||
io_handler();
|
||||
|
||||
#ifdef VCD_OUTPUT
|
||||
m_trace->dump(2 * this->stats_total_cycles + 1);
|
||||
trace_->dump(2 * total_cycles_ + 1);
|
||||
#endif
|
||||
|
||||
++time_stamp;
|
||||
++stats_total_cycles;
|
||||
++total_cycles_;
|
||||
}
|
||||
|
||||
void Simulator::wait(uint32_t cycles) {
|
||||
@@ -333,7 +299,7 @@ void Simulator::wait(uint32_t cycles) {
|
||||
}
|
||||
|
||||
bool Simulator::is_busy() {
|
||||
return (0 == vortex->out_ebreak);
|
||||
return (0 == vortex_->out_ebreak);
|
||||
}
|
||||
|
||||
void Simulator::send_snoops(uint32_t mem_addr, uint32_t size) {
|
||||
@@ -343,34 +309,34 @@ void Simulator::send_snoops(uint32_t mem_addr, uint32_t size) {
|
||||
|
||||
#ifdef USE_MULTICORE
|
||||
// submit snoop requests for the needed blocks
|
||||
vortex->llc_snp_req_addr = aligned_addr_start;
|
||||
vortex->llc_snp_req = false;
|
||||
vortex_->llc_snp_req_addr = aligned_addr_start;
|
||||
vortex_->llc_snp_req = false;
|
||||
for (;;) {
|
||||
this->step();
|
||||
if (vortex->llc_snp_req) {
|
||||
vortex->llc_snp_req = false;
|
||||
if (vortex->llc_snp_req_addr >= aligned_addr_end)
|
||||
if (vortex_->llc_snp_req) {
|
||||
vortex_->llc_snp_req = false;
|
||||
if (vortex_->llc_snp_req_addr >= aligned_addr_end)
|
||||
break;
|
||||
vortex->llc_snp_req_addr += GLOBAL_BLOCK_SIZE_BYTES;
|
||||
vortex_->llc_snp_req_addr += GLOBAL_BLOCK_SIZE_BYTES;
|
||||
}
|
||||
if (!vortex->llc_snp_req_delay) {
|
||||
vortex->llc_snp_req = true;
|
||||
if (!vortex_->llc_snp_req_delay) {
|
||||
vortex_->llc_snp_req = true;
|
||||
}
|
||||
}
|
||||
#else
|
||||
// submit snoop requests for the needed blocks
|
||||
vortex->snp_req_addr = aligned_addr_start;
|
||||
vortex->snp_req = false;
|
||||
vortex_->snp_req_addr = aligned_addr_start;
|
||||
vortex_->snp_req = false;
|
||||
for (;;) {
|
||||
this->step();
|
||||
if (vortex->snp_req) {
|
||||
vortex->snp_req = false;
|
||||
if (vortex->snp_req_addr >= aligned_addr_end)
|
||||
if (vortex_->snp_req) {
|
||||
vortex_->snp_req = false;
|
||||
if (vortex_->snp_req_addr >= aligned_addr_end)
|
||||
break;
|
||||
vortex->snp_req_addr += GLOBAL_BLOCK_SIZE_BYTES;
|
||||
vortex_->snp_req_addr += GLOBAL_BLOCK_SIZE_BYTES;
|
||||
}
|
||||
if (!vortex->snp_req_delay) {
|
||||
vortex->snp_req = true;
|
||||
if (!vortex_->snp_req_delay) {
|
||||
vortex_->snp_req = true;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
@@ -385,8 +351,8 @@ void Simulator::flush_caches(uint32_t mem_addr, uint32_t size) {
|
||||
this->send_snoops(mem_addr, size);
|
||||
#endif
|
||||
|
||||
// wait 300 cycles to ensure that the request has committed
|
||||
this->wait(300);
|
||||
// wait some cycles to ensure that the request has committed
|
||||
this->wait(PIPELINE_FLUSH_LATENCY);
|
||||
}
|
||||
|
||||
bool Simulator::run() {
|
||||
@@ -394,22 +360,18 @@ bool Simulator::run() {
|
||||
this->reset();
|
||||
|
||||
// execute program
|
||||
while (!vortex->out_ebreak) {
|
||||
while (!vortex_->out_ebreak) {
|
||||
this->step();
|
||||
}
|
||||
|
||||
// wait 5 cycles to flush the pipeline
|
||||
this->wait(5);
|
||||
|
||||
std::cerr << "New Total Cycles: " << (this->stats_total_cycles) << "\n";
|
||||
|
||||
this->print_stats();
|
||||
|
||||
#ifdef USE_MULTICORE
|
||||
int status = 0;
|
||||
#else
|
||||
// check riscv-tests PASSED/FAILED status
|
||||
int status = (unsigned int) vortex->Vortex->vx_back_end->VX_wb->last_data_wb & 0xf;
|
||||
int status = (int)vortex_->Vortex->vx_back_end->VX_wb->last_data_wb & 0xf;
|
||||
#endif
|
||||
|
||||
return (status == 1);
|
||||
|
||||
@@ -15,9 +15,15 @@
|
||||
#include "VX_define.h"
|
||||
#include "ram.h"
|
||||
|
||||
#include <fstream>
|
||||
#include <ostream>
|
||||
#include <vector>
|
||||
|
||||
//#define ENABLE_DRAM_STALLS
|
||||
#define DRAM_LATENCY 200
|
||||
#define DRAM_RQ_SIZE 16
|
||||
#define DRAM_STALLS_MODULO 16
|
||||
#define PIPELINE_FLUSH_LATENCY 300
|
||||
|
||||
typedef struct {
|
||||
int cycles_left;
|
||||
int data_length;
|
||||
@@ -34,55 +40,33 @@ public:
|
||||
bool is_busy();
|
||||
void reset();
|
||||
void step();
|
||||
void flush_caches(uint32_t mem_addr, uint32_t size);
|
||||
void flush_caches(uint32_t mem_addr, uint32_t size);
|
||||
bool run();
|
||||
void print_stats(std::ostream& out);
|
||||
|
||||
protected:
|
||||
|
||||
void print_stats(bool cycle_test = true);
|
||||
private:
|
||||
|
||||
#ifndef USE_MULTICORE
|
||||
bool ibus_driver();
|
||||
void ibus_driver();
|
||||
#endif
|
||||
|
||||
bool dbus_driver();
|
||||
void dbus_driver();
|
||||
void io_handler();
|
||||
void send_snoops(uint32_t mem_addr, uint32_t size);
|
||||
void wait(uint32_t cycles);
|
||||
|
||||
RAM *ram;
|
||||
|
||||
unsigned start_pc;
|
||||
bool refill_d;
|
||||
unsigned refill_addr_d;
|
||||
bool refill_i;
|
||||
unsigned refill_addr_i;
|
||||
long int curr_cycle;
|
||||
bool stop;
|
||||
bool unit_test;
|
||||
std::ofstream results;
|
||||
int stats_static_inst;
|
||||
int stats_dynamic_inst;
|
||||
int stats_total_cycles;
|
||||
int stats_fwd_stalls;
|
||||
int stats_branch_stalls;
|
||||
int debug_state;
|
||||
int ibus_state;
|
||||
int dbus_state;
|
||||
int debug_return;
|
||||
int debug_wait_num;
|
||||
int debug_inst_num;
|
||||
int debug_end_wait;
|
||||
int debug_debugAddr;
|
||||
double stats_sim_time;
|
||||
std::vector<dram_req_t> dram_req_vec;
|
||||
std::vector<dram_req_t> I_dram_req_vec;
|
||||
uint64_t total_cycles_;
|
||||
bool dram_stalled_;
|
||||
bool I_dram_stalled_;
|
||||
std::vector<dram_req_t> dram_req_vec_;
|
||||
std::vector<dram_req_t> I_dram_req_vec_;
|
||||
RAM *ram_;
|
||||
#ifdef USE_MULTICORE
|
||||
VVortex_SOC *vortex;
|
||||
VVortex_SOC *vortex_;
|
||||
#else
|
||||
VVortex *vortex;
|
||||
VVortex *vortex_;
|
||||
#endif
|
||||
#ifdef VCD_OUTPUT
|
||||
VerilatedVcdC *m_trace;
|
||||
VerilatedVcdC *trace_;
|
||||
#endif
|
||||
};
|
||||
@@ -1,5 +1,7 @@
|
||||
#include "simulator.h"
|
||||
#include <iostream>
|
||||
#include <fstream>
|
||||
#include <iomanip>
|
||||
|
||||
#define NUM_TESTS 46
|
||||
|
||||
@@ -10,9 +12,9 @@ int main(int argc, char **argv)
|
||||
|
||||
Verilated::commandArgs(argc, argv);
|
||||
|
||||
// #define ALL_TESTS
|
||||
//#define ALL_TESTS
|
||||
#ifdef ALL_TESTS
|
||||
bool passed = true;
|
||||
bool passed = true;
|
||||
|
||||
std::string tests[NUM_TESTS] = {
|
||||
"../../emulator/riscv_tests/rv32ui-p-add.hex",
|
||||
@@ -63,31 +65,31 @@ int main(int argc, char **argv)
|
||||
"../../emulator/riscv_tests/rv32um-p-remu.hex"
|
||||
};
|
||||
|
||||
for (std::string s : tests) {
|
||||
std::cerr << DEFAULT << "\n---------------------------------------\n";
|
||||
for (std::string s : tests) {
|
||||
std::cerr << DEFAULT << "\n---------------------------------------\n";
|
||||
|
||||
std::cerr << s << std::endl;
|
||||
std::cerr << s << std::endl;
|
||||
|
||||
RAM ram;
|
||||
loadHexImpl(s.c_str(), &ram);
|
||||
RAM ram;
|
||||
loadHexImpl(s.c_str(), &ram);
|
||||
|
||||
Simulator v(&ram);
|
||||
bool curr = v.simulate();
|
||||
Simulator simulator(&ram);
|
||||
bool curr = simulator.run();
|
||||
|
||||
if ( curr) std::cerr << GREEN << "Test Passed: " << s << std::endl;
|
||||
if (!curr) std::cerr << RED << "Test Failed: " << s << std::endl;
|
||||
std::cerr << DEFAULT;
|
||||
passed = passed && curr;
|
||||
}
|
||||
if (curr) std::cerr << GREEN << "Test Passed: " << s << std::endl;
|
||||
if (!curr) std::cerr << RED << "Test Failed: " << s << std::endl;
|
||||
std::cerr << DEFAULT;
|
||||
passed = passed && curr;
|
||||
}
|
||||
|
||||
std::cerr << DEFAULT << "\n***************************************\n";
|
||||
std::cerr << DEFAULT << "\n***************************************\n";
|
||||
|
||||
if( passed) std::cerr << DEFAULT << "PASSED ALL TESTS\n";
|
||||
if (passed) std::cerr << DEFAULT << "PASSED ALL TESTS\n";
|
||||
if(!passed) std::cerr << DEFAULT << "Failed one or more tests\n";
|
||||
|
||||
return !passed;
|
||||
|
||||
#else
|
||||
#else
|
||||
|
||||
char testing[] = "../../runtime/mains/simple/vx_simple_main.hex";
|
||||
//char testing[] = "../../emulator/riscv_tests/rv32ui-p-lw.hex";
|
||||
@@ -109,7 +111,7 @@ int main(int argc, char **argv)
|
||||
Simulator simulator(&ram);
|
||||
bool curr = simulator.run();
|
||||
|
||||
if ( curr) std::cerr << GREEN << "Test Passed: " << testing << std::endl;
|
||||
if (curr) std::cerr << GREEN << "Test Passed: " << testing << std::endl;
|
||||
if (!curr) std::cerr << RED << "Test Failed: " << testing << std::endl;
|
||||
|
||||
return !curr;
|
||||
|
||||
Reference in New Issue
Block a user