Enable VexRiscv murax jtag simulator by verilator.
This commit is contained in:
colin
parent
e3968e6fa7
commit
25a557365b
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@ -0,0 +1 @@
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.vscode
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10
Readme.md
10
Readme.md
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@ -1,7 +1,11 @@
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# Weekend group
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我们不卷，只是爱好。
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### 不要小看自己
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自由的参与方式
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### 我们不卷，只是爱好
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## 分歧决议
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### 自由的参与方式
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### 自由发挥，无限创作空间
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### 理性的分歧决议方法
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@ -13,7 +13,7 @@ make -j
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sudo make install
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```
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## install sbt
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## install sbt to gen the VexRiscv core
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```
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# JAVA JDK 8
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+incdir+./+
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#include <stdio.h>
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#include <iostream>
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#include <stdlib.h>
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#include <stdint.h>
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#include <cstring>
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#include <string.h>
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <iomanip>
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#include <time.h>
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#include <unistd.h>
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#include "verilated_fst_c.h"
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using namespace std;
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class SimElement{
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public:
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virtual ~SimElement(){}
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virtual void onReset(){}
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virtual void postReset(){}
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virtual void preCycle(){}
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virtual void postCycle(){}
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};
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//#include <functional>
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class TimeProcess{
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public:
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uint64_t wakeDelay = 0;
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bool wakeEnable = false;
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// std::function<int(double)> lambda;
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virtual ~TimeProcess(){}
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virtual void schedule(uint64_t delay){
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wakeDelay = delay;
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wakeEnable = true;
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}
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virtual void tick(){
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// lambda = [this](double x) { return x+1 + this->wakeDelay; };
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// lambda(1.0);
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}
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};
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class SensitiveProcess{
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public:
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virtual ~SensitiveProcess(){}
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virtual void tick(uint64_t time){
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}
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};
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class ClockDomain : public TimeProcess{
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public:
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CData* clk;
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CData* reset;
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uint64_t tooglePeriod;
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vector<SimElement*> simElements;
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ClockDomain(CData *clk, CData *reset, uint64_t period, uint64_t delay){
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this->clk = clk;
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this->reset = reset;
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*clk = 0;
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this->tooglePeriod = period/2;
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schedule(delay);
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}
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bool postCycle = false;
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virtual void tick(){
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if(*clk == 0){
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for(SimElement* simElement : simElements){
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simElement->preCycle();
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}
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postCycle = true;
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*clk = 1;
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schedule(0);
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}else{
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if(postCycle){
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postCycle = false;
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for(SimElement* simElement : simElements){
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simElement->postCycle();
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}
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}else{
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*clk = 0;
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}
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schedule(tooglePeriod);
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}
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}
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void add(SimElement *that){
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simElements.push_back(that);
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}
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};
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class AsyncReset : public TimeProcess{
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public:
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CData* reset;
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uint32_t state;
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uint64_t duration;
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AsyncReset(CData *reset, uint64_t duration){
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this->reset = reset;
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*reset = 0;
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state = 0;
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this->duration = duration;
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schedule(0);
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}
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virtual void tick(){
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switch(state){
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case 0:
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*reset = 1;
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state = 1;
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schedule(duration);
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break;
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case 1:
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*reset = 0;
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state = 2;
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break;
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}
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}
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};
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class success : public std::exception { };
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static uint32_t workspaceCycles = 0;
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template <class T> class Workspace{
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public:
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vector<TimeProcess*> timeProcesses;
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vector<SensitiveProcess*> checkProcesses;
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T* top;
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bool resetDone = false;
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double timeToSec = 1e-12;
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double speedFactor = 1.0;
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uint64_t allowedTime = 0;
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string name;
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uint64_t time = 0;
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#ifdef TRACE
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VerilatedFstC* tfp;
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#endif
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ofstream logTraces;
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Workspace(string name){
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this->name = name;
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top = new T;
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logTraces.open (name + ".logTrace");
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}
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virtual ~Workspace(){
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delete top;
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#ifdef TRACE
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delete tfp;
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#endif
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for(auto* p : timeProcesses) delete p;
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for(auto* p : checkProcesses) delete p;
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}
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Workspace* setSpeedFactor(double value){
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speedFactor = value;
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return this;
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}
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virtual void postReset() {}
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virtual void checks(){}
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virtual void pass(){ throw success();}
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virtual void fail(){ throw std::exception();}
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virtual void dump(uint64_t i){
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#ifdef TRACE
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if(i >= TRACE_START) tfp->dump(i);
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#endif
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}
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Workspace* run(uint32_t timeout = 5000){
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// init trace dump
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#ifdef TRACE
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Verilated::traceEverOn(true);
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tfp = new VerilatedFstC;
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top->trace(tfp, 99);
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tfp->open((string(name)+ ".fst").c_str());
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#endif
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struct timespec start_time,tick_time;
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uint64_t tickLastSimTime = 0;
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top->eval();
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start_time);
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &tick_time);
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uint32_t flushCounter = 0;
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try {
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while(1){
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uint64_t delay = ~0l;
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for(TimeProcess* p : timeProcesses)
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if(p->wakeEnable && p->wakeDelay < delay)
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delay = p->wakeDelay;
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if(delay == ~0l){
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fail();
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}
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if(delay != 0){
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dump(time);
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}
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for(TimeProcess* p : timeProcesses) {
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p->wakeDelay -= delay;
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if(p->wakeDelay == 0){
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p->wakeEnable = false;
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p->tick();
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}
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}
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top->eval();
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for(auto* p : checkProcesses) p->tick(time);
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if(delay != 0){
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if(time - tickLastSimTime > 1000*400000 || time - tickLastSimTime > 1.0*speedFactor/timeToSec){
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struct timespec end_time;
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end_time);
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uint64_t diffInNanos = end_time.tv_sec*1e9 + end_time.tv_nsec - tick_time.tv_sec*1e9 - tick_time.tv_nsec;
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tick_time = end_time;
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double dt = diffInNanos*1e-9;
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#ifdef PRINT_PERF
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printf("Simulation speed : %f ms/realTime\n",(time - tickLastSimTime)/dt*timeToSec*1e3);
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#endif
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tickLastSimTime = time;
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}
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time += delay;
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while(allowedTime < delay){
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struct timespec end_time;
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end_time);
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uint64_t diffInNanos = end_time.tv_sec*1e9 + end_time.tv_nsec - start_time.tv_sec*1e9 - start_time.tv_nsec;
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start_time = end_time;
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double dt = diffInNanos*1e-9;
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allowedTime += dt*speedFactor/timeToSec;
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if(allowedTime > 0.01*speedFactor/timeToSec)
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allowedTime = 0.01*speedFactor/timeToSec;
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}
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allowedTime-=delay;
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flushCounter++;
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if(flushCounter > 100000){
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#ifdef TRACE
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tfp->flush();
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//printf("flush\n");
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#endif
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flushCounter = 0;
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}
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}
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if (Verilated::gotFinish())
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exit(0);
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}
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cout << "timeout" << endl;
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fail();
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} catch (const success e) {
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cout <<"SUCCESS " << name << endl;
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} catch (const std::exception& e) {
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cout << "FAIL " << name << endl;
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}
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dump(time);
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dump(time+10);
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#ifdef TRACE
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tfp->close();
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#endif
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return this;
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}
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};
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@ -0,0 +1,177 @@
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#include <stdio.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <arpa/inet.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <netinet/tcp.h>
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/** Returns true on success, or false if there was an error */
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bool SetSocketBlockingEnabled(int fd, bool blocking)
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{
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if (fd < 0) return false;
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#ifdef WIN32
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unsigned long mode = blocking ? 0 : 1;
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return (ioctlsocket(fd, FIONBIO, &mode) == 0) ? true : false;
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#else
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int flags = fcntl(fd, F_GETFL, 0);
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if (flags < 0) return false;
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flags = blocking ? (flags&~O_NONBLOCK) : (flags|O_NONBLOCK);
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return (fcntl(fd, F_SETFL, flags) == 0) ? true : false;
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#endif
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}
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class Jtag : public TimeProcess{
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public:
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CData *tms, *tdi, *tdo, *tck;
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enum State {reset};
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uint32_t state;
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int serverSocket, clientHandle;
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struct sockaddr_in serverAddr;
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struct sockaddr_storage serverStorage;
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socklen_t addr_size;
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uint64_t tooglePeriod;
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// char buffer[1024];
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Jtag(CData *tms, CData *tdi, CData *tdo, CData* tck,uint64_t period){
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this->tms = tms;
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this->tdi = tdi;
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this->tdo = tdo;
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this->tck = tck;
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this->tooglePeriod = period/2;
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*tms = 0;
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*tdi = 0;
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*tdo = 0;
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*tck = 0;
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state = 0;
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schedule(0);
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//---- Create the socket. The three arguments are: ----//
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// 1) Internet domain 2) Stream socket 3) Default protocol (TCP in this case) //
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serverSocket = socket(PF_INET, SOCK_STREAM, 0);
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assert(serverSocket != -1);
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int flag = 1;
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setsockopt( serverSocket, /* socket affected */
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IPPROTO_TCP, /* set option at TCP level */
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TCP_NODELAY, /* name of option */
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(char *) &flag, /* the cast is historical
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cruft */
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sizeof(int)); /* length of option value */
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/*int a = 0xFFF;
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if (setsockopt(serverSocket, SOL_SOCKET, SO_RCVBUF, &a, sizeof(int)) == -1) {
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fprintf(stderr, "Error setting socket opts: %s\n", strerror(errno));
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}
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a = 0xFFFFFF;
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if (setsockopt(serverSocket, SOL_SOCKET, SO_SNDBUF, &a, sizeof(int)) == -1) {
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fprintf(stderr, "Error setting socket opts: %s\n", strerror(errno));
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}*/
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SetSocketBlockingEnabled(serverSocket,0);
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//---- Configure settings of the server address struct ----//
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// Address family = Internet //
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serverAddr.sin_family = AF_INET;
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serverAddr.sin_port = htons(7894);
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serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
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memset(serverAddr.sin_zero, '\0', sizeof serverAddr.sin_zero);
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//---- Bind the address struct to the socket ----//
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bind(serverSocket, (struct sockaddr *) &serverAddr, sizeof(serverAddr));
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//---- Listen on the socket, with 5 max connection requests queued ----//
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listen(serverSocket,1);
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//---- Accept call creates a new socket for the incoming connection ----//
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addr_size = sizeof serverStorage;
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clientHandle = -1;
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}
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void connectionReset(){
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printf("CONNECTION RESET\n");
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shutdown(clientHandle,SHUT_RDWR);
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clientHandle = -1;
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}
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virtual ~Jtag(){
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if(clientHandle != -1) {
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shutdown(clientHandle,SHUT_RDWR);
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usleep(100);
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}
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if(serverSocket != -1) {
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close(serverSocket);
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usleep(100);
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}
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}
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uint32_t selfSleep = 0;
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uint32_t checkNewConnectionsTimer = 0;
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uint8_t rxBuffer[100];
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int32_t rxBufferSize = 0;
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int32_t rxBufferRemaining = 0;
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virtual void tick(){
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checkNewConnectionsTimer++;
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if(checkNewConnectionsTimer == 5000){
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checkNewConnectionsTimer = 0;
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int newclientHandle = accept(serverSocket, (struct sockaddr *) &serverStorage, &addr_size);
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if(newclientHandle != -1){
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if(clientHandle != -1){
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connectionReset();
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}
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clientHandle = newclientHandle;
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printf("CONNECTED\n");
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}
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else{
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if(clientHandle == -1)
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selfSleep = 1000;
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}
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}
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if(selfSleep)
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selfSleep--;
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else{
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if(clientHandle != -1){
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uint8_t buffer;
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int n;
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if(rxBufferRemaining == 0){
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if(ioctl(clientHandle,FIONREAD,&n) != 0)
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connectionReset();
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else if(n >= 1){
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rxBufferSize = read(clientHandle,&rxBuffer,100);
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if(rxBufferSize < 0){
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connectionReset();
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}else {
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rxBufferRemaining = rxBufferSize;
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}
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}else {
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selfSleep = 30;
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}
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}
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if(rxBufferRemaining != 0){
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uint8_t buffer = rxBuffer[rxBufferSize - (rxBufferRemaining--)];
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*tms = (buffer & 1) != 0;
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*tdi = (buffer & 2) != 0;
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*tck = (buffer & 8) != 0;
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if(buffer & 4){
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buffer = (*tdo != 0);
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//printf("TDO=%d\n",buffer);
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if(-1 == send(clientHandle,&buffer,1,0))
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connectionReset();
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}else {
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// printf("\n");
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}
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}
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}
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}
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schedule(tooglePeriod);
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}
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};
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@ -0,0 +1,126 @@
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class UartRx : public TimeProcess{
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public:
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CData *rx;
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uint32_t uartTimeRate;
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UartRx(CData *rx, uint32_t uartTimeRate){
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this->rx = rx;
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this->uartTimeRate = uartTimeRate;
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schedule(uartTimeRate);
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}
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enum State {START, DATA, STOP};
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State state = START;
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char data;
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uint32_t counter;
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virtual void tick(){
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switch(state){
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case START:
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if(*rx == 0){
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state = DATA;
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counter = 0;
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data = 0;
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||||
schedule(uartTimeRate*5/4);
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} else {
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schedule(uartTimeRate/4);
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}
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break;
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case DATA:
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data |= (*rx) << counter++;
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if(counter == 8){
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state = STOP;
|
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}
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schedule(uartTimeRate);
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||||
break;
|
||||
case STOP:
|
||||
if(*rx){
|
||||
cout << data << flush;
|
||||
} else {
|
||||
cout << "UART RX FRAME ERROR at " << time << endl;
|
||||
}
|
||||
|
||||
schedule(uartTimeRate/4);
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state = START;
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||||
break;
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}
|
||||
}
|
||||
};
|
||||
|
||||
#include<pthread.h>
|
||||
#include <mutex>
|
||||
#include <queue>
|
||||
|
||||
class UartTx : public TimeProcess{
|
||||
public:
|
||||
|
||||
CData *tx;
|
||||
uint32_t uartTimeRate;
|
||||
|
||||
enum State {START, DATA, STOP};
|
||||
State state = START;
|
||||
char data;
|
||||
uint32_t counter;
|
||||
pthread_t inputThreadId;
|
||||
queue<uint8_t> inputsQueue;
|
||||
mutex inputsMutex;
|
||||
|
||||
UartTx(CData *tx, uint32_t uartTimeRate){
|
||||
this->tx = tx;
|
||||
this->uartTimeRate = uartTimeRate;
|
||||
schedule(uartTimeRate);
|
||||
pthread_create(&inputThreadId, NULL, &inputThreadWrapper, this);
|
||||
*tx = 1;
|
||||
}
|
||||
|
||||
static void* inputThreadWrapper(void *uartTx){
|
||||
((UartTx*)uartTx)->inputThread();
|
||||
return NULL;
|
||||
}
|
||||
|
||||
void inputThread(){
|
||||
while(1){
|
||||
uint8_t c = getchar();
|
||||
inputsMutex.lock();
|
||||
inputsQueue.push(c);
|
||||
inputsMutex.unlock();
|
||||
}
|
||||
}
|
||||
|
||||
virtual void tick(){
|
||||
switch(state){
|
||||
case START:
|
||||
inputsMutex.lock();
|
||||
if(!inputsQueue.empty()){
|
||||
data = inputsQueue.front();
|
||||
inputsQueue.pop();
|
||||
inputsMutex.unlock();
|
||||
state = DATA;
|
||||
counter = 0;
|
||||
*tx = 0;
|
||||
schedule(uartTimeRate);
|
||||
} else {
|
||||
inputsMutex.unlock();
|
||||
schedule(uartTimeRate*50);
|
||||
}
|
||||
break;
|
||||
case DATA:
|
||||
*tx = (data >> counter) & 1;
|
||||
counter++;
|
||||
if(counter == 8){
|
||||
state = STOP;
|
||||
}
|
||||
schedule(uartTimeRate);
|
||||
break;
|
||||
case STOP:
|
||||
*tx = 1;
|
||||
schedule(uartTimeRate);
|
||||
state = START;
|
||||
break;
|
||||
}
|
||||
}
|
||||
};
|
||||
|
|
@ -1,11 +1,11 @@
|
|||
export CODE_BASE_PATH = ${PWD}/../../E906_RTL_FACTORY
|
||||
GDB_PREFIX = /opt/riscv/bin/riscv32-unknown-elf-gdb
|
||||
GDB_PREFIX = /opt/riscv/bin/riscv64-unknown-elf-gdb
|
||||
|
||||
FILELIST = -F ./dpi/jtag.fl ../Murax.v
|
||||
FILELIST = -F ../common/common.fl ../Murax.v
|
||||
|
||||
DEMODIR = ${PWD}
|
||||
|
||||
TEST = sim
|
||||
TEST = Murax
|
||||
|
||||
# CFLAGS for verilator generated Makefiles. Without -std=c++11 it complains for `auto` variables
|
||||
CFLAGS += "-std=c++11"
|
||||
|
|
@ -32,23 +32,19 @@ verilator-build:
|
|||
-Wno-WIDTH \
|
||||
-Wno-IMPLICIT \
|
||||
${FILELIST} \
|
||||
soc_sim.v \
|
||||
--trace \
|
||||
--top-module soc_sim -exe test_soc_sim.cpp --autoflush
|
||||
cp ${DEMODIR}/test_soc_sim.cpp obj_dir
|
||||
$(MAKE) -j -C obj_dir/ -f Vsoc_sim.mk $(VERILATOR_MAKE_FLAGS)
|
||||
--top-module Murax -exe main.cpp --autoflush
|
||||
$(MAKE) -j -C obj_dir/ -f VMurax.mk $(VERILATOR_MAKE_FLAGS)
|
||||
|
||||
##################### Simulation Runs #####################################
|
||||
|
||||
verilator: verilator-build
|
||||
./obj_dir/Vsoc_sim
|
||||
./obj_dir/VMurax
|
||||
|
||||
##################### openocd #####################################
|
||||
|
||||
openocd:
|
||||
openocd -c "set MURAX_CPU0_YAML cpu0.yaml" -f murax.cfg
|
||||
# openocd -f riscv.cfg
|
||||
# openocd -f riscv.cfg -d3
|
||||
openocd -f jtag_tcp.cfg -c "set MURAX_CPU0_YAML cpu0.yaml" -f murax.cfg
|
||||
|
||||
gdb:
|
||||
$(GDB_PREFIX) -x gdbinit ./hello_world.elf
|
||||
|
|
|
|||
|
|
@ -1,18 +1,7 @@
|
|||
# jtag simulation
|
||||
|
||||
|
||||
## start openocd
|
||||
|
||||
`openocd -d -f swerv.cfg`
|
||||
|
||||
## start gdb
|
||||
|
||||
`/opt/riscv/bin/riscv32-unknown-elf-gdb -ex "target extended-remote :3333"`
|
||||
|
||||
## quick start
|
||||
|
||||
At demo/jtag/
|
||||
|
||||
1. `make all`
|
||||
2. `make openocd`
|
||||
3. `make gdb`
|
||||
Binary file not shown.
|
|
@ -1,437 +0,0 @@
|
|||
// Copyright lowRISC contributors.
|
||||
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
|
||||
// SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
#include "tcp_server.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <netinet/in.h>
|
||||
#include <netinet/tcp.h>
|
||||
#include <pthread.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
|
||||
/**
|
||||
* Simple buffer for passing data between TCP sockets and DPI modules
|
||||
*/
|
||||
const int BUFSIZE_BYTE = 25600;
|
||||
|
||||
struct tcp_buf {
|
||||
unsigned int rptr;
|
||||
unsigned int wptr;
|
||||
char buf[BUFSIZE_BYTE];
|
||||
};
|
||||
|
||||
/**
|
||||
* TCP Server thread context structure
|
||||
*/
|
||||
struct tcp_server_ctx {
|
||||
// Writeable by the host thread
|
||||
char *display_name;
|
||||
uint16_t listen_port;
|
||||
volatile bool socket_run;
|
||||
// Writeable by the server thread
|
||||
tcp_buf *buf_in;
|
||||
tcp_buf *buf_out;
|
||||
int sfd; // socket fd
|
||||
int cfd; // client fd
|
||||
pthread_t sock_thread;
|
||||
};
|
||||
|
||||
static bool tcp_buffer_is_full(struct tcp_buf *buf) {
|
||||
if (buf->wptr >= buf->rptr) {
|
||||
return (buf->wptr - buf->rptr) == (BUFSIZE_BYTE - 1);
|
||||
} else {
|
||||
return (buf->rptr - buf->wptr) == 1;
|
||||
}
|
||||
}
|
||||
|
||||
static bool tcp_buffer_is_empty(struct tcp_buf *buf) {
|
||||
return (buf->wptr == buf->rptr);
|
||||
}
|
||||
|
||||
static void tcp_buffer_put_byte(struct tcp_buf *buf, char dat) {
|
||||
bool done = false;
|
||||
while (!done) {
|
||||
if (!tcp_buffer_is_full(buf)) {
|
||||
buf->buf[buf->wptr++] = dat;
|
||||
buf->wptr %= BUFSIZE_BYTE;
|
||||
done = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static bool tcp_buffer_get_byte(struct tcp_buf *buf, char *dat) {
|
||||
if (tcp_buffer_is_empty(buf)) {
|
||||
return false;
|
||||
}
|
||||
*dat = buf->buf[buf->rptr++];
|
||||
buf->rptr %= BUFSIZE_BYTE;
|
||||
return true;
|
||||
}
|
||||
|
||||
static struct tcp_buf *tcp_buffer_new(void) {
|
||||
struct tcp_buf *buf_new;
|
||||
buf_new = (struct tcp_buf *)malloc(sizeof(struct tcp_buf));
|
||||
buf_new->rptr = 0;
|
||||
buf_new->wptr = 0;
|
||||
return buf_new;
|
||||
}
|
||||
|
||||
static void tcp_buffer_free(struct tcp_buf **buf) {
|
||||
free(*buf);
|
||||
*buf = NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Start a TCP server
|
||||
*
|
||||
* This function creates attempts to create a new TCP socket instance. The
|
||||
* socket is a non-blocking stream socket, with buffering disabled.
|
||||
*
|
||||
* @param ctx context object
|
||||
* @return 0 on success, -1 in case of an error
|
||||
*/
|
||||
static int start(struct tcp_server_ctx *ctx) {
|
||||
int rv;
|
||||
|
||||
assert(ctx->sfd == 0 && "Server already started.");
|
||||
|
||||
// create socket
|
||||
int sfd = socket(AF_INET, SOCK_STREAM, 0);
|
||||
if (sfd == -1) {
|
||||
fprintf(stderr, "%s: Unable to create socket: %s (%d)\n", ctx->display_name,
|
||||
strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
rv = fcntl(sfd, F_SETFL, O_NONBLOCK);
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Unable to make socket non-blocking: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// reuse existing socket (if existing)
|
||||
int reuse_socket = 1;
|
||||
rv = setsockopt(sfd, SOL_SOCKET, SO_REUSEADDR, &reuse_socket, sizeof(int));
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Unable to set socket options: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// stop tcp socket from buffering (buffering prevents timely responses to
|
||||
// OpenOCD which severly limits debugging performance)
|
||||
int tcp_nodelay = 1;
|
||||
rv = setsockopt(sfd, IPPROTO_TCP, TCP_NODELAY, &tcp_nodelay, sizeof(int));
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Unable to set socket nodelay: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// bind server
|
||||
struct sockaddr_in addr;
|
||||
memset(&addr, 0, sizeof(addr));
|
||||
addr.sin_family = AF_INET;
|
||||
addr.sin_addr.s_addr = htonl(INADDR_ANY);
|
||||
addr.sin_port = htons(ctx->listen_port);
|
||||
|
||||
rv = bind(sfd, (struct sockaddr *)&addr, sizeof(addr));
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Failed to bind socket: %s (%d)\n", ctx->display_name,
|
||||
strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
// listen for incoming connections
|
||||
rv = listen(sfd, 1);
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Failed to listen on socket: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
ctx->sfd = sfd;
|
||||
assert(ctx->sfd > 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Accept an incoming connection from a client (nonblocking)
|
||||
*
|
||||
* The resulting client fd is made non-blocking.
|
||||
*
|
||||
* @param ctx context object
|
||||
* @return 0 on success, any other value indicates an error
|
||||
*/
|
||||
static int client_tryaccept(struct tcp_server_ctx *ctx) {
|
||||
int rv;
|
||||
|
||||
assert(ctx->sfd > 0);
|
||||
assert(ctx->cfd == 0);
|
||||
|
||||
int cfd = accept(ctx->sfd, NULL, NULL);
|
||||
|
||||
if (cfd == -1 && errno == EAGAIN) {
|
||||
return -EAGAIN;
|
||||
}
|
||||
|
||||
if (cfd == -1) {
|
||||
fprintf(stderr, "%s: Unable to accept incoming connection: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
rv = fcntl(cfd, F_SETFL, O_NONBLOCK);
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Unable to make client socket non-blocking: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
return -1;
|
||||
}
|
||||
|
||||
ctx->cfd = cfd;
|
||||
assert(ctx->cfd > 0);
|
||||
|
||||
printf("%s: Accepted client connection\n", ctx->display_name);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Stop the TCP server
|
||||
*
|
||||
* @param ctx context object
|
||||
*/
|
||||
static void stop(struct tcp_server_ctx *ctx) {
|
||||
assert(ctx);
|
||||
if (!ctx->sfd) {
|
||||
return;
|
||||
}
|
||||
close(ctx->sfd);
|
||||
ctx->sfd = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Receive a byte from a connected client
|
||||
*
|
||||
* @param ctx context object
|
||||
* @param cmd byte received
|
||||
* @return true if a byte was read
|
||||
*/
|
||||
static bool get_byte(struct tcp_server_ctx *ctx, char *cmd) {
|
||||
assert(ctx);
|
||||
|
||||
ssize_t num_read = read(ctx->cfd, cmd, 1);
|
||||
|
||||
if (num_read == 0) {
|
||||
return false;
|
||||
}
|
||||
if (num_read == -1) {
|
||||
if (errno == EAGAIN || errno == EWOULDBLOCK) {
|
||||
return false;
|
||||
} else if (errno == EBADF) {
|
||||
// Possibly client went away? Accept a new connection.
|
||||
fprintf(stderr, "%s: Client disappeared.\n", ctx->display_name);
|
||||
tcp_server_client_close(ctx);
|
||||
return false;
|
||||
} else {
|
||||
fprintf(stderr, "%s: Error while reading from client: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
assert(0 && "Error reading from client");
|
||||
}
|
||||
}
|
||||
assert(num_read == 1);
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Send a byte to a connected client
|
||||
*
|
||||
* @param ctx context object
|
||||
* @param cmd byte to send
|
||||
*/
|
||||
static void put_byte(struct tcp_server_ctx *ctx, char cmd) {
|
||||
while (1) {
|
||||
ssize_t num_written = send(ctx->cfd, &cmd, sizeof(cmd), MSG_NOSIGNAL);
|
||||
if (num_written == -1) {
|
||||
if (errno == EAGAIN || errno == EWOULDBLOCK) {
|
||||
continue;
|
||||
} else if (errno == EPIPE) {
|
||||
printf("%s: Remote disconnected.\n", ctx->display_name);
|
||||
tcp_server_client_close(ctx);
|
||||
break;
|
||||
} else {
|
||||
fprintf(stderr, "%s: Error while writing to client: %s (%d)\n",
|
||||
ctx->display_name, strerror(errno), errno);
|
||||
assert(0 && "Error writing to client.");
|
||||
}
|
||||
}
|
||||
if (num_written >= 1) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Cleanup server context
|
||||
*
|
||||
* @param ctx context object
|
||||
*/
|
||||
static void ctx_free(struct tcp_server_ctx *ctx) {
|
||||
// Free the buffers
|
||||
tcp_buffer_free(&ctx->buf_in);
|
||||
tcp_buffer_free(&ctx->buf_out);
|
||||
// Free the display name
|
||||
free(ctx->display_name);
|
||||
// Free the ctx
|
||||
free(ctx);
|
||||
ctx = NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Thread function to create a new server instance
|
||||
*
|
||||
* @param ctx_void context object
|
||||
* @return Always returns NULL
|
||||
*/
|
||||
static void *server_create(void *ctx_void) {
|
||||
// Cast to a server struct
|
||||
struct tcp_server_ctx *ctx = (struct tcp_server_ctx *)ctx_void;
|
||||
struct timeval timeout;
|
||||
|
||||
// Start the server
|
||||
int rv = start(ctx);
|
||||
if (rv != 0) {
|
||||
fprintf(stderr, "%s: Unable to create TCP server on port %d\n",
|
||||
ctx->display_name, ctx->listen_port);
|
||||
goto err_cleanup_return;
|
||||
}
|
||||
|
||||
// Initialise timeout
|
||||
timeout.tv_sec = 0;
|
||||
|
||||
// Initialise fd_set
|
||||
|
||||
// Start waiting for connection / data
|
||||
char xfer_data;
|
||||
while (ctx->socket_run) {
|
||||
// Initialise structure of fds
|
||||
fd_set read_fds;
|
||||
FD_ZERO(&read_fds);
|
||||
if (ctx->sfd) {
|
||||
FD_SET(ctx->sfd, &read_fds);
|
||||
}
|
||||
if (ctx->cfd) {
|
||||
FD_SET(ctx->cfd, &read_fds);
|
||||
}
|
||||
// max fd num
|
||||
int mfd = (ctx->cfd > ctx->sfd) ? ctx->cfd : ctx->sfd;
|
||||
|
||||
// Set timeout - 50us gives good performance
|
||||
timeout.tv_usec = 50;
|
||||
|
||||
// Wait for socket activity or timeout
|
||||
rv = select(mfd + 1, &read_fds, NULL, NULL, &timeout);
|
||||
|
||||
if (rv < 0) {
|
||||
printf("%s: Socket read failed, port: %d\n", ctx->display_name,
|
||||
ctx->listen_port);
|
||||
tcp_server_client_close(ctx);
|
||||
}
|
||||
|
||||
// New connection
|
||||
if (FD_ISSET(ctx->sfd, &read_fds)) {
|
||||
client_tryaccept(ctx);
|
||||
}
|
||||
|
||||
// New client data
|
||||
if (FD_ISSET(ctx->cfd, &read_fds)) {
|
||||
while (get_byte(ctx, &xfer_data)) {
|
||||
tcp_buffer_put_byte(ctx->buf_in, xfer_data);
|
||||
}
|
||||
}
|
||||
|
||||
if (ctx->cfd != 0) {
|
||||
while (tcp_buffer_get_byte(ctx->buf_out, &xfer_data)) {
|
||||
put_byte(ctx, xfer_data);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
err_cleanup_return:
|
||||
|
||||
// Simulation done - clean up
|
||||
tcp_server_client_close(ctx);
|
||||
stop(ctx);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// Abstract interface functions
|
||||
tcp_server_ctx *tcp_server_create(const char *display_name, int listen_port) {
|
||||
struct tcp_server_ctx *ctx =
|
||||
(struct tcp_server_ctx *)calloc(1, sizeof(struct tcp_server_ctx));
|
||||
assert(ctx);
|
||||
|
||||
// Create the buffers
|
||||
struct tcp_buf *buf_in = tcp_buffer_new();
|
||||
struct tcp_buf *buf_out = tcp_buffer_new();
|
||||
assert(buf_in);
|
||||
assert(buf_out);
|
||||
|
||||
// Populate the struct with buffer pointers
|
||||
ctx->buf_in = buf_in;
|
||||
ctx->buf_out = buf_out;
|
||||
|
||||
// Set up socket details
|
||||
ctx->socket_run = true;
|
||||
ctx->listen_port = listen_port;
|
||||
ctx->display_name = strdup(display_name);
|
||||
assert(ctx->display_name);
|
||||
|
||||
if (pthread_create(&ctx->sock_thread, NULL, server_create, (void *)ctx) !=
|
||||
0) {
|
||||
fprintf(stderr, "%s: Unable to create TCP socket thread\n",
|
||||
ctx->display_name);
|
||||
ctx_free(ctx);
|
||||
free(ctx);
|
||||
return NULL;
|
||||
}
|
||||
return ctx;
|
||||
}
|
||||
|
||||
bool tcp_server_read(struct tcp_server_ctx *ctx, char *dat) {
|
||||
return tcp_buffer_get_byte(ctx->buf_in, dat);
|
||||
}
|
||||
|
||||
void tcp_server_write(struct tcp_server_ctx *ctx, char dat) {
|
||||
tcp_buffer_put_byte(ctx->buf_out, dat);
|
||||
}
|
||||
|
||||
void tcp_server_close(struct tcp_server_ctx *ctx) {
|
||||
// Shut down the socket thread
|
||||
ctx->socket_run = false;
|
||||
pthread_join(ctx->sock_thread, NULL);
|
||||
ctx_free(ctx);
|
||||
}
|
||||
|
||||
void tcp_server_client_close(struct tcp_server_ctx *ctx) {
|
||||
assert(ctx);
|
||||
|
||||
if (!ctx->cfd) {
|
||||
return;
|
||||
}
|
||||
|
||||
close(ctx->cfd);
|
||||
ctx->cfd = 0;
|
||||
}
|
||||
|
|
@ -1,69 +0,0 @@
|
|||
// Copyright lowRISC contributors.
|
||||
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
|
||||
// SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
/**
|
||||
* Functions to create and interact with a threaded TCP server
|
||||
*
|
||||
* This is intended to be used by simulation add-on DPI modules to provide
|
||||
* basic TCP socket communication between a host and simulated peripherals.
|
||||
*/
|
||||
|
||||
#ifndef TCP_SERVER_H_
|
||||
#define TCP_SERVER_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
struct tcp_server_ctx;
|
||||
|
||||
/**
|
||||
* Non-blocking read of a byte from a connected client
|
||||
*
|
||||
* @param ctx tcp server context object
|
||||
* @param dat byte received
|
||||
* @return true if a byte was read
|
||||
*/
|
||||
bool tcp_server_read(struct tcp_server_ctx *ctx, char *dat);
|
||||
|
||||
/**
|
||||
* Write a byte to a connected client
|
||||
*
|
||||
* The write is internally buffered and so does not block if the client is not
|
||||
* ready to accept data, but does block if the buffer is full.
|
||||
*
|
||||
* @param ctx tcp server context object
|
||||
* @param dat byte to send
|
||||
*/
|
||||
void tcp_server_write(struct tcp_server_ctx *ctx, char dat);
|
||||
|
||||
/**
|
||||
* Create a new TCP server instance
|
||||
*
|
||||
* @param display_name C string description of server
|
||||
* @param listen_port On which port the server should listen
|
||||
* @return A pointer to the created context struct
|
||||
*/
|
||||
tcp_server_ctx *tcp_server_create(const char *display_name, int listen_port);
|
||||
|
||||
/**
|
||||
* Shut down the server and free all reserved memory
|
||||
*
|
||||
* @param ctx tcp server context object
|
||||
*/
|
||||
void tcp_server_close(struct tcp_server_ctx *ctx);
|
||||
|
||||
/**
|
||||
* Instruct the server to disconnect a client
|
||||
*
|
||||
* @param ctx tcp server context object
|
||||
*/
|
||||
void tcp_server_client_close(struct tcp_server_ctx *ctx);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
#endif
|
||||
#endif // TCP_SERVER_H_
|
||||
|
|
@ -1,9 +0,0 @@
|
|||
+incdir+./common+
|
||||
+incdir+./jtagdpi+
|
||||
|
||||
-CFLAGS -lpthread
|
||||
-LDFLAGS -lpthread
|
||||
|
||||
./common/tcp_server.c
|
||||
./jtagdpi/jtagdpi.sv
|
||||
./jtagdpi/jtagdpi.c
|
||||
|
|
@ -1,164 +0,0 @@
|
|||
// Copyright lowRISC contributors.
|
||||
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
|
||||
// SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
#include "jtagdpi.h"
|
||||
|
||||
#include <assert.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <iostream>
|
||||
|
||||
#include "../common/tcp_server.h"
|
||||
|
||||
struct jtagdpi_ctx {
|
||||
// Server context
|
||||
struct tcp_server_ctx *sock;
|
||||
// Signals
|
||||
uint8_t tck;
|
||||
uint8_t tms;
|
||||
uint8_t tdi;
|
||||
uint8_t tdo;
|
||||
uint8_t trst_n;
|
||||
uint8_t srst_n;
|
||||
};
|
||||
|
||||
/**
|
||||
* Reset the JTAG signals to a "dongle unplugged" state
|
||||
*/
|
||||
static void reset_jtag_signals(struct jtagdpi_ctx *ctx) {
|
||||
assert(ctx);
|
||||
|
||||
ctx->tck = 0;
|
||||
ctx->tms = 0;
|
||||
ctx->tdi = 0;
|
||||
|
||||
// trst_n is pulled down (reset active) by default
|
||||
ctx->trst_n = 0;
|
||||
|
||||
// srst_n is pulled up (reset not active) by default
|
||||
ctx->srst_n = 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Update the JTAG signals in the context structure
|
||||
*/
|
||||
static void update_jtag_signals(struct jtagdpi_ctx *ctx) {
|
||||
assert(ctx);
|
||||
|
||||
/*
|
||||
* Documentation pointer:
|
||||
* The remote_bitbang protocol implemented below is documented in the OpenOCD
|
||||
* source tree at doc/manual/jtag/drivers/remote_bitbang.txt, or online at
|
||||
* https://repo.or.cz/openocd.git/blob/HEAD:/doc/manual/jtag/drivers/remote_bitbang.txt
|
||||
*/
|
||||
|
||||
// read a command byte
|
||||
char cmd;
|
||||
if (!tcp_server_read(ctx->sock, &cmd)) {
|
||||
return;
|
||||
}
|
||||
|
||||
bool act_send_resp = false;
|
||||
bool act_quit = false;
|
||||
|
||||
// // Use for debug jtag signal
|
||||
// if ((((cmd - '0') >> 2) & 0x1) == 0x1 && (ctx->tck) == 0x0) {
|
||||
// char tdo_ascii = ctx->tdo + '0';
|
||||
// std::cout << "AAAAAA tms " << (int)(((cmd - '0') >> 1) & 0x1) << " tdi "
|
||||
// << (int)(((cmd - '0') >> 0) & 0x1) << " tdo " << tdo_ascii
|
||||
// << std::endl;
|
||||
// }
|
||||
|
||||
// parse received command byte
|
||||
if (cmd >= '0' && cmd <= '7') {
|
||||
// JTAG write
|
||||
char cmd_bit = cmd - '0';
|
||||
ctx->tdi = (cmd_bit >> 0) & 0x1;
|
||||
ctx->tms = (cmd_bit >> 1) & 0x1;
|
||||
ctx->tck = (cmd_bit >> 2) & 0x1;
|
||||
} else if (cmd >= 'r' && cmd <= 'u') {
|
||||
// JTAG reset (active high from OpenOCD)
|
||||
char cmd_bit = cmd - 'r';
|
||||
ctx->srst_n = !((cmd_bit >> 0) & 0x1);
|
||||
ctx->trst_n = !((cmd_bit >> 1) & 0x1);
|
||||
} else if (cmd == 'R') {
|
||||
// JTAG read
|
||||
act_send_resp = true;
|
||||
} else if (cmd == 'B') {
|
||||
// printf("%s: BLINK ON!\n", ctx->display_name);
|
||||
} else if (cmd == 'b') {
|
||||
// printf("%s: BLINK OFF!\n", ctx->display_name);
|
||||
} else if (cmd == 'Q') {
|
||||
// quit (client disconnect)
|
||||
act_quit = true;
|
||||
} else {
|
||||
fprintf(stderr,
|
||||
"JTAG DPI Protocol violation detected: unsupported command %c\n",
|
||||
cmd);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
// send tdo as response
|
||||
if (act_send_resp) {
|
||||
char tdo_ascii = ctx->tdo + '0';
|
||||
tcp_server_write(ctx->sock, tdo_ascii);
|
||||
}
|
||||
|
||||
if (act_quit) {
|
||||
printf("JTAG DPI: Remote disconnected.\n");
|
||||
tcp_server_client_close(ctx->sock);
|
||||
}
|
||||
}
|
||||
|
||||
void *jtagdpi_create(const char *display_name, int listen_port) {
|
||||
struct jtagdpi_ctx *ctx =
|
||||
(struct jtagdpi_ctx *)calloc(1, sizeof(struct jtagdpi_ctx));
|
||||
assert(ctx);
|
||||
|
||||
// Create socket
|
||||
ctx->sock = tcp_server_create(display_name, listen_port);
|
||||
|
||||
reset_jtag_signals(ctx);
|
||||
|
||||
printf(
|
||||
"\n"
|
||||
"JTAG: Virtual JTAG interface %s is listening on port %d. Use\n"
|
||||
"OpenOCD and the following configuration to connect:\n"
|
||||
" interface remote_bitbang\n"
|
||||
" remote_bitbang_host localhost\n"
|
||||
" remote_bitbang_port %d\n",
|
||||
display_name, listen_port, listen_port);
|
||||
|
||||
return (void *)ctx;
|
||||
}
|
||||
|
||||
void jtagdpi_close(void *ctx_void) {
|
||||
struct jtagdpi_ctx *ctx = (struct jtagdpi_ctx *)ctx_void;
|
||||
if (!ctx) {
|
||||
return;
|
||||
}
|
||||
tcp_server_close(ctx->sock);
|
||||
free(ctx);
|
||||
}
|
||||
|
||||
void jtagdpi_tick(void *ctx_void, svBit *tck, svBit *tms, svBit *tdi,
|
||||
svBit *trst_n, svBit *srst_n, const svBit tdo) {
|
||||
struct jtagdpi_ctx *ctx = (struct jtagdpi_ctx *)ctx_void;
|
||||
|
||||
ctx->tdo = tdo;
|
||||
|
||||
// TODO: Evaluate moving this functionality into a separate thread
|
||||
if (ctx) {
|
||||
update_jtag_signals(ctx);
|
||||
}
|
||||
|
||||
*tdi = ctx->tdi;
|
||||
*tms = ctx->tms;
|
||||
*tck = ctx->tck;
|
||||
*srst_n = ctx->srst_n;
|
||||
*trst_n = ctx->trst_n;
|
||||
}
|
||||
|
|
@ -1,56 +0,0 @@
|
|||
// Copyright lowRISC contributors.
|
||||
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
|
||||
// SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
#ifndef JTAGDPI_H_
|
||||
#define JTAGDPI_H_
|
||||
|
||||
#include <svdpi.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
struct jtagdpi_ctx;
|
||||
|
||||
/**
|
||||
* Constructor: Create and initialize jtagdpi context object
|
||||
*
|
||||
* Call from a initial block.
|
||||
*
|
||||
* @param display_name Name of the JTAG interface (for display purposes only)
|
||||
* @param listen_port Port to listen on
|
||||
* @return an initialized struct jtagdpi_ctx context object
|
||||
*/
|
||||
void *jtagdpi_create(const char *display_name, int listen_port);
|
||||
|
||||
/**
|
||||
* Destructor: Close all connections and free all resources
|
||||
*
|
||||
* Call from a finish block.
|
||||
*
|
||||
* @param ctx_void a struct jtagdpi_ctx context object
|
||||
*/
|
||||
void jtagdpi_close(void *ctx_void);
|
||||
|
||||
/**
|
||||
* Drive JTAG signals
|
||||
*
|
||||
* Call this function from the simulation at every clock tick to read/write
|
||||
* from/to the JTAG signals.
|
||||
*
|
||||
* @param ctx_void a struct jtagdpi_ctx context object
|
||||
* @param tck JTAG test clock signal
|
||||
* @param tms JTAG test mode select signal
|
||||
* @param tdi JTAG test data input signal
|
||||
* @param trst_n JTAG test reset signal (active low)
|
||||
* @param srst_n JTAG system reset signal (active low)
|
||||
* @param tdo JTAG test data out
|
||||
*/
|
||||
void jtagdpi_tick(void *ctx_void, svBit *tck, svBit *tms, svBit *tdi,
|
||||
svBit *trst_n, svBit *srst_n, const svBit tdo);
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
#endif
|
||||
#endif // JTAGDPI_H_
|
||||
|
|
@ -1,58 +0,0 @@
|
|||
// Copyright lowRISC contributors.
|
||||
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
|
||||
// SPDX-License-Identifier: Apache-2.0
|
||||
`timescale 1ns / 1ps
|
||||
|
||||
module jtagdpi #(
|
||||
parameter string Name = "jtag0", // name of the JTAG interface (display only)
|
||||
parameter int ListenPort = 44853 // TCP port to listen on
|
||||
) (
|
||||
input logic clk_i,
|
||||
input logic rst_ni,
|
||||
|
||||
output logic jtag_tck,
|
||||
output logic jtag_tms,
|
||||
output logic jtag_tdi,
|
||||
input logic jtag_tdo,
|
||||
output logic jtag_trst_n,
|
||||
output logic jtag_srst_n
|
||||
);
|
||||
|
||||
import "DPI-C" function chandle jtagdpi_create(
|
||||
input string name,
|
||||
input int listen_port
|
||||
);
|
||||
|
||||
import "DPI-C" function void jtagdpi_tick(
|
||||
input chandle ctx,
|
||||
output bit tck,
|
||||
output bit tms,
|
||||
output bit tdi,
|
||||
output bit trst_n,
|
||||
output bit srst_n,
|
||||
input bit tdo
|
||||
);
|
||||
|
||||
reg [1:0] plit;
|
||||
|
||||
import "DPI-C" function void jtagdpi_close(input chandle ctx);
|
||||
|
||||
chandle ctx;
|
||||
|
||||
initial begin
|
||||
ctx = jtagdpi_create(Name, ListenPort);
|
||||
end
|
||||
|
||||
final begin
|
||||
jtagdpi_close(ctx);
|
||||
ctx = 0;
|
||||
end
|
||||
|
||||
always_ff @(posedge clk_i) plit <= plit + 1'b1;
|
||||
|
||||
always_ff @(posedge plit[1], negedge rst_ni) begin
|
||||
jtagdpi_tick(ctx, jtag_tck, jtag_tms, jtag_tdi, jtag_trst_n, jtag_srst_n,
|
||||
jtag_tdo);
|
||||
end
|
||||
|
||||
endmodule
|
||||
|
|
@ -1,2 +1,4 @@
|
|||
target remote :3333
|
||||
set remotetimeout 20000
|
||||
target extended-remote :3333
|
||||
set remotetimeout 2000
|
||||
monitor reset halt
|
||||
load
|
||||
Binary file not shown.
|
|
@ -0,0 +1,6 @@
|
|||
#
|
||||
# Dummy interface (for testing purposes)
|
||||
#
|
||||
|
||||
interface jtag_tcp
|
||||
|
||||
|
|
@ -0,0 +1,66 @@
|
|||
#include "VMurax.h"
|
||||
#include "VMurax_Murax.h"
|
||||
#include "verilated.h"
|
||||
#include "verilated_vcd_c.h"
|
||||
|
||||
#include "../common/framework.h"
|
||||
#include "../common/jtag.h"
|
||||
#include "../common/uart.h"
|
||||
|
||||
class MuraxWorkspace : public Workspace<VMurax>{
|
||||
public:
|
||||
MuraxWorkspace() : Workspace("Murax"){
|
||||
ClockDomain *mainClk = new ClockDomain(&top->io_mainClk,NULL,83333,300000);
|
||||
AsyncReset *asyncReset = new AsyncReset(&top->io_asyncReset,50000);
|
||||
UartRx *uartRx = new UartRx(&top->io_uart_txd,1.0e12/115200);
|
||||
UartTx *uartTx = new UartTx(&top->io_uart_rxd,1.0e12/115200);
|
||||
|
||||
timeProcesses.push_back(mainClk);
|
||||
timeProcesses.push_back(asyncReset);
|
||||
timeProcesses.push_back(uartRx);
|
||||
timeProcesses.push_back(uartTx);
|
||||
|
||||
Jtag *jtag = new Jtag(&top->io_jtag_tms,&top->io_jtag_tdi,&top->io_jtag_tdo,&top->io_jtag_tck,83333*4);
|
||||
timeProcesses.push_back(jtag);
|
||||
|
||||
#ifdef TRACE
|
||||
//speedFactor = 10e-3;
|
||||
//cout << "Simulation caped to " << speedFactor << " of real time"<< endl;
|
||||
#endif
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
struct timespec timer_start(){
|
||||
struct timespec start_time;
|
||||
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start_time);
|
||||
return start_time;
|
||||
}
|
||||
|
||||
long timer_end(struct timespec start_time){
|
||||
struct timespec end_time;
|
||||
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end_time);
|
||||
uint64_t diffInNanos = end_time.tv_sec*1e9 + end_time.tv_nsec - start_time.tv_sec*1e9 - start_time.tv_nsec;
|
||||
return diffInNanos;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int main(int argc, char **argv, char **env) {
|
||||
|
||||
Verilated::randReset(2);
|
||||
Verilated::commandArgs(argc, argv);
|
||||
|
||||
printf("BOOT\n");
|
||||
timespec startedAt = timer_start();
|
||||
|
||||
MuraxWorkspace().run(100e6);
|
||||
|
||||
uint64_t duration = timer_end(startedAt);
|
||||
cout << endl << "****************************************************************" << endl;
|
||||
cout << "Had simulate " << workspaceCycles << " clock cycles in " << duration*1e-9 << " s (" << workspaceCycles / (duration*1e-9) << " Khz)" << endl;
|
||||
cout << "****************************************************************" << endl << endl;
|
||||
|
||||
|
||||
exit(0);
|
||||
}
|
||||
|
|
@ -1,9 +1,3 @@
|
|||
|
||||
adapter driver remote_bitbang
|
||||
remote_bitbang host localhost
|
||||
remote_bitbang port 44853
|
||||
|
||||
|
||||
set _ENDIAN little
|
||||
set _TAP_TYPE 1234
|
||||
|
||||
|
|
@ -14,8 +8,8 @@ if { [info exists CPUTAPID] } {
|
|||
set _CPUTAPID 0x10001fff
|
||||
}
|
||||
|
||||
adapter speed 800
|
||||
adapter srst delay 260
|
||||
adapter_khz 800
|
||||
adapter_nsrst_delay 260
|
||||
jtag_ntrst_delay 250
|
||||
|
||||
set _CHIPNAME fpga_spinal
|
||||
|
|
|
|||
|
|
@ -1,38 +0,0 @@
|
|||
# "JTAG adapter" for simulation, exposed to OpenOCD through a TCP socket
|
||||
# speaking the remote_bitbang protocol. The adapter is implemented as
|
||||
# SystemVerilog DPI module.
|
||||
|
||||
|
||||
# reset_config srst_only # donot support TRST, use five tms=1
|
||||
# adapter_nsrst_assert_width 100
|
||||
|
||||
adapter driver remote_bitbang
|
||||
remote_bitbang host localhost
|
||||
remote_bitbang port 44853
|
||||
|
||||
# Target configuration for the riscv chip
|
||||
|
||||
set _CHIPNAME riscv
|
||||
set _TARGETNAME $_CHIPNAME.tap
|
||||
|
||||
jtag newtap $_CHIPNAME tap -irlen 5 -expected-id 0x10001fff
|
||||
|
||||
target create $_TARGETNAME riscv -chain-position $_TARGETNAME
|
||||
|
||||
# Configure work area in on-chip SRAM
|
||||
# $_TARGETNAME configure -work-area-phys 0x1000e000 -work-area-size 1000 -work-area-backup 0
|
||||
|
||||
riscv expose_csrs 1988
|
||||
|
||||
# Be verbose about GDB errors
|
||||
gdb_report_data_abort enable
|
||||
gdb_report_register_access_error enable
|
||||
|
||||
# Increase timeouts in simulation
|
||||
riscv set_command_timeout_sec 1200
|
||||
|
||||
# Conclude OpenOCD configuration
|
||||
init
|
||||
|
||||
# Halt the target
|
||||
halt
|
||||
|
|
@ -1,154 +0,0 @@
|
|||
// SPDX-License-Identifier: Apache-2.0
|
||||
// Copyright 2020 Western Digital Corporation or its affiliates.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
|
||||
|
||||
// `define E906
|
||||
// // `define SOC_TOP tb.x_soc
|
||||
// // `define RTL_MEM tb.x_soc.x_smem_ctrl
|
||||
// // `define ISA_MEM tb.x_pa_isa
|
||||
// `define JTAG_5
|
||||
|
||||
// `define IAHB_LITE
|
||||
// `define RTL_IAHBL_MEM soc_sim.rvsoc.x_cpu_sub_system_ahb.x_iahb_mem_ctrl
|
||||
|
||||
// `define DAHB_LITE
|
||||
// `define RTL_DAHBL_MEM soc_sim.rvsoc.x_cpu_sub_system_ahb.x_dahb_mem_ctrl
|
||||
|
||||
// `define CLK_PERIOD 10
|
||||
// `define TCLK_PERIOD 33
|
||||
// `define MAX_RUN_TIME 700000000
|
||||
// `define clk tb.clk
|
||||
// `define rst_b tb.rst_b
|
||||
// `include "../cpu/environment.h"
|
||||
|
||||
`timescale 1ns / 1ps
|
||||
|
||||
module soc_sim (
|
||||
input bit clk,
|
||||
output jtag_tdo,
|
||||
output jtag_tck,
|
||||
output jtag_tms,
|
||||
output jtag_tdi
|
||||
);
|
||||
|
||||
wire rst;
|
||||
|
||||
bit [63:0] cycleCnt;
|
||||
|
||||
reg uart_tx;
|
||||
wire uart_rx;
|
||||
wire [ 7:0] gpioa;
|
||||
|
||||
wire jrst_b;
|
||||
wire nrst_b;
|
||||
|
||||
wire [ 7:0] WriteData;
|
||||
|
||||
parameter MAX_CYCLES = 10_000_000_0;
|
||||
|
||||
assign rst = cycleCnt > 30 || cycleCnt < 10;
|
||||
assign jrst_b = cycleCnt > 30 || cycleCnt < 10; // Very important
|
||||
assign nrst_b = cycleCnt > 30 || cycleCnt < 10;
|
||||
|
||||
// ///////////////////////////////////////
|
||||
// // Memory Initialization
|
||||
// ///////////////////////////////////////
|
||||
// integer i;
|
||||
// // reg [31:0] mem_data_size;
|
||||
// // reg [31:0] mem_inst_size;
|
||||
|
||||
// reg [31:0] mem_inst_temp[65536];
|
||||
// // reg [31:0] mem_data_temp[65536];
|
||||
|
||||
// initial begin
|
||||
// $display("\t******START TO LOAD PROGRAM******\n");
|
||||
// $readmemh("../work/case.pat", mem_inst_temp);
|
||||
// // $readmemh("./data.pat", mem_data_temp);
|
||||
|
||||
// for (i = 0; i < 65536; i = i + 1) begin
|
||||
// `RTL_IAHBL_MEM.ram0.mem[i][7:0] = ((^mem_inst_temp[i][31:24]) === 1'bx ) ? 8'b0:mem_inst_temp[i][31:24];
|
||||
// `RTL_IAHBL_MEM.ram1.mem[i][7:0] = ((^mem_inst_temp[i][23:16]) === 1'bx ) ? 8'b0:mem_inst_temp[i][23:16];
|
||||
// `RTL_IAHBL_MEM.ram2.mem[i][7:0] = ((^mem_inst_temp[i][15: 8]) === 1'bx ) ? 8'b0:mem_inst_temp[i][15: 8];
|
||||
// `RTL_IAHBL_MEM.ram3.mem[i][7:0] = ((^mem_inst_temp[i][ 7: 0]) === 1'bx ) ? 8'b0:mem_inst_temp[i][ 7: 0];
|
||||
// end
|
||||
|
||||
// for (i = 0; i <= 65536; i = i + 1) begin
|
||||
// `RTL_DAHBL_MEM.ram0.mem[i][7:0] = 8'b0;
|
||||
// `RTL_DAHBL_MEM.ram1.mem[i][7:0] = 8'b0;
|
||||
// `RTL_DAHBL_MEM.ram2.mem[i][7:0] = 8'b0;
|
||||
// `RTL_DAHBL_MEM.ram3.mem[i][7:0] = 8'b0;
|
||||
// end
|
||||
// for (i = 0; i <= 65536; i = i + 1) begin
|
||||
// `RTL_DAHBL_MEM.ram4.mem[i][7:0] = 8'b0;
|
||||
// `RTL_DAHBL_MEM.ram5.mem[i][7:0] = 8'b0;
|
||||
// `RTL_DAHBL_MEM.ram6.mem[i][7:0] = 8'b0;
|
||||
// `RTL_DAHBL_MEM.ram7.mem[i][7:0] = 8'b0;
|
||||
// end
|
||||
// end
|
||||
|
||||
|
||||
integer fd;
|
||||
|
||||
always @(posedge clk) begin
|
||||
cycleCnt <= cycleCnt + 1;
|
||||
if (cycleCnt == MAX_CYCLES) begin
|
||||
$display("Hit max cycle count (%0d) .. stopping", cycleCnt);
|
||||
$finish;
|
||||
end
|
||||
if (WriteData[7:0] == 8'hff) begin
|
||||
$display("\nFinished by program");
|
||||
$display("TEST_PASSED");
|
||||
$finish;
|
||||
end else if (WriteData[7:0] == 8'h1) begin
|
||||
$display("TEST_FAILED");
|
||||
$finish;
|
||||
end else begin
|
||||
$fwrite(fd, "%c", WriteData[7:0]);
|
||||
$write("%c", WriteData[7:0]);
|
||||
end
|
||||
end
|
||||
|
||||
initial begin
|
||||
fd = $fopen("console.log", "w");
|
||||
end
|
||||
|
||||
Murax rvsoc (
|
||||
.io_asyncReset(rst),
|
||||
.io_mainClk(clk),
|
||||
.io_jtag_tms(jtag_tms),
|
||||
.io_jtag_tdi(jtag_tdi),
|
||||
.io_jtag_tdo(jtag_tdo),
|
||||
.io_jtag_tck(jtag_tck),
|
||||
.io_gpioA_read(),
|
||||
.io_gpioA_write(),
|
||||
.io_gpioA_writeEnable(),
|
||||
.io_uart_txd(uart_rx),
|
||||
.io_uart_rxd(uart_tx)
|
||||
);
|
||||
|
||||
jtagdpi jtagdpi (
|
||||
.clk_i (clk),
|
||||
.rst_ni(rst),
|
||||
|
||||
.jtag_tck(jtag_tck),
|
||||
.jtag_tms(jtag_tms),
|
||||
.jtag_tdi(jtag_tdi),
|
||||
.jtag_tdo(jtag_tdo),
|
||||
.jtag_trst_n(),
|
||||
.jtag_srst_n()
|
||||
);
|
||||
|
||||
endmodule
|
||||
|
|
@ -1,61 +0,0 @@
|
|||
// SPDX-License-Identifier: Apache-2.0
|
||||
// Copyright 2019 Western Digital Corporation or its affiliates.
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
//
|
||||
#include <stdlib.h>
|
||||
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
#include <utility>
|
||||
|
||||
#include "Vsoc_sim.h"
|
||||
#include "verilated.h"
|
||||
#include "verilated_vcd_c.h"
|
||||
|
||||
vluint64_t main_time = 0;
|
||||
const int isOpenDump = 0;
|
||||
|
||||
double sc_time_stamp() { return main_time; }
|
||||
|
||||
int main(int argc, char** argv) {
|
||||
std::cout << "\nVerilatorTB: Start of sim\n" << std::endl;
|
||||
|
||||
Verilated::commandArgs(argc, argv);
|
||||
Vsoc_sim* soc = new Vsoc_sim;
|
||||
VerilatedVcdC* tfp = new VerilatedVcdC;
|
||||
|
||||
if (isOpenDump) {
|
||||
Verilated::traceEverOn(true);
|
||||
soc->trace(tfp, 99);
|
||||
tfp->open("vlt_dump.vcd");
|
||||
}
|
||||
|
||||
while (!Verilated::gotFinish()) {
|
||||
main_time += 5;
|
||||
soc->clk = !soc->clk;
|
||||
soc->eval();
|
||||
|
||||
if (isOpenDump) {
|
||||
tfp->dump(main_time);
|
||||
}
|
||||
}
|
||||
|
||||
if (isOpenDump) {
|
||||
tfp->close();
|
||||
}
|
||||
soc->final();
|
||||
|
||||
std::cout << "\nVerilatorTB: End of sim" << std::endl;
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
Loading…
Reference in New Issue