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changes for verilator debug

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pull/18/head
openpowerwtf 2 years ago
parent ba43fff83c
commit 7cbbf9f384
1 changed files with 161 additions and 21 deletions
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180
dev/sim/verilator/tb_litex.cpp
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@ -3,18 +3,30 @@

#define TRACING

// old public access method
//#define OLD_PUBLIC

#include <cstddef>
#include <iostream>
#include <fstream>
#include <iomanip>
#include <unordered_map>

#include "verilated.h"
#include "Va2owb.h"

#ifndef OLD_PUBLIC
// internal nets
#include "Va2owb___024root.h"
#endif

#include "Va2owb_a2owb.h"
#include "Va2owb_a2l2wb.h"
#include "Va2owb_c.h"
#include "Va2owb_iuq.h"
#include "Va2owb_iuq_cpl_top.h"
#include "Va2owb_iuq_cpl.h"
#include "Va2owb_iuq_cpl_ctrl.h"

#ifdef TRACING
#include "verilated_vcd_c.h"
@ -28,9 +40,13 @@ unsigned int t = 0;
*/

Va2owb* m;
#ifdef OLD_PUBLIC
Va2owb* root;
#else
Va2owb___024root* root;
#endif

vluint64_t main_time = 0; // in units of timeprecision used in verilog or --timescale-override
// what is it? it changed to 941621251 after calling loadmem()

double sc_time_stamp() { // $time in verilog
return main_time;
@ -38,10 +54,12 @@ double sc_time_stamp() { // $time in verilog

const int resetCycle = 10;
const int threadRunCycle = resetCycle + 5;
const int runCycles = 500;
const int runCycles = 501;
const int hbCycles = 500;
const int threads = 1;
const std::string testFile = "../mem/test1/rom.init";
const std::string testFile = "../mem/test3/rom.init";
const unsigned int bootAdr = 0x00000000;


// Cythonize this and use it for cocotb too...

@ -139,16 +157,23 @@ int main(int argc, char **argv) {

Verilated::commandArgs(argc, argv);
m = new Va2owb;
#ifdef OLD_PUBLIC
root = m;
#else
root = m->rootp;
#endif

#ifdef TRACING
Verilated::traceEverOn(true);
t = new VerilatedVcdC;
m->trace(t, 99);
t->open("a2onode.vcd");
t->open("a2olitex.vcd");
cout << "Tracing enabled." << endl;
#endif

bool ok = true;
bool resetDone = false;
bool booted = false;
unsigned int threadStop = 0x3;

unsigned int tick = 0;
@ -160,20 +185,107 @@ int main(int argc, char **argv) {
unsigned int countReads = 0;
bool wbRdPending = false, wbWrPending = false;

//unsigned int iu0Comp = m->rootp->a2owb->c0->iu_lq_i0_completed;
//unsigned int iu0Comp = m->rootp->a2owb__DOT__c0__DOT__lq0__DOT__lsq__DOT__odq__DOT__iu_lq_i0_completed_itag_int;
unsigned int iu0Comp, iu1Comp;
unsigned long iu0CompIFAR, iu1CompIFAR, cp3NIA;
/*
creditsLdErr = sim.a2o.root.lq0.lsq.arb.ld_cred_err_q
creditsStErr = sim.a2o.root.lq0.lsq.arb.st_cred_err_q
*/


/*
iu0CompIFAR = sim.a2o.root.iuq0.iuq_cpl_top0.iuq_cpl0.cp2_i0_ifar
iu1Comp = sim.a2o.root.iu_lq_i1_completed
iu1Comp = cp2_i0_completed
iu1CompIFAR = sim.a2o.root.iuq0.iuq_cpl_top0.iuq_cpl0.cp2_i1_ifar
iuCompFlushIFAR = sim.a2o.root.cp_t0_flush_ifar
cp3NIA = sim.a2o.root.iuq0.iuq_cpl_top0.iuq_cpl0.iuq_cpl_ctrl.cp3_nia_q # nia after last cycle's completions
comp = ''
#wtf seeing something weird here
# there are cases where x's are in some bits of comp ifar's; maybe ok (predict array?) but why is completed indicated?

if iu0Comp.value == 1:
comp = f'0:{sim.safeint(iu0CompIFAR.value.binstr + "00", 2):06X} '

if iu1Comp.value == 1:
comp = f'{comp}1:{sim.safeint(iu1CompIFAR.value.binstr + "00", 2):06X} '

if comp == '':
if sim.a2o.stopOnHang != 0 and sim.cycle - lastCompCycle > sim.a2o.stopOnHang:
sim.ok = False
sim.fail = f'No completion detected in {sim.a2o.stopOnHang} cycles'
assert False, sim.fail
break
else:
comp = f'{comp}{sim.safeint(iuCompFlushIFAR.value.binstr + "00", 2):016X}'
sim.msg(f'C0: CP {comp}')
lastCompCycle = sim.cycle

*/

/*
# GPR pool and arch map
gprCompMap = []
lastGprCompMap = []
#wtf check what 33:36 are!
for i in range(36):
gprCompMap.append(sim.a2o.root.iuq0.iuq_slice_top0.slice0.rn_top0.fx_rn0.gpr_rn_map.xhdl3.comp_map0[i].comp_map_latch.dout)
lastGprCompMap.append(i)

gpr = []
for i in range(144):
gpr.append(sim.a2o.root.xu0.gpr.gpr0.loc[i].dat)

# CR fields pool and arch map
crCompMap = []
lastCrCompMap = []
for i in range(8):
crCompMap.append(sim.a2o.root.iuq0.iuq_slice_top0.slice0.rn_top0.fx_rn0.cr_rn_map.xhdl3.comp_map0[i].comp_map_latch.dout)
lastCrCompMap.append(i)

cr = []
for i in range(24):
cr.append(sim.a2o.root.xu0.cr.entry[i].reg_latch.dout)

# XER pool and arch map
xerCompMap = []
lastXerCompMap = []
for i in range(1):
xerCompMap.append(sim.a2o.root.iuq0.iuq_slice_top0.slice0.rn_top0.fx_rn0.xer_rn_map.xhdl3.comp_map0[i].comp_map_latch.dout)
lastXerCompMap.append(i)

xer = []
for i in range(12):
xer.append(sim.a2o.root.xu0.xer.entry[i].reg_latch.dout)

# CTR pool and arch map
ctrCompMap = []
lastCtrCompMap = []
for i in range(1):
ctrCompMap.append(sim.a2o.root.iuq0.iuq_slice_top0.slice0.rn_top0.fx_rn0.ctr_rn_map.xhdl3.comp_map0[i].comp_map_latch.dout)
lastCtrCompMap.append(i)

ctr = []
for i in range(8):
ctr.append(sim.a2o.root.xu0.ctr.entry[i].reg_latch.dout)

# LR pool and arch map
lrCompMap = []
lastLrCompMap = []
for i in range(1):
lrCompMap.append(sim.a2o.root.iuq0.iuq_slice_top0.slice0.rn_top0.fx_rn0.lr_rn_map.xhdl3.comp_map0[i].comp_map_latch.dout)
lastLrCompMap.append(i)

lr = []
for i in range(8):
lr.append(sim.a2o.root.xu0.lr.entry[i].reg_latch.dout)

*/

mem.write(0xFFFFFFFC, 0x48000002);
mem.loadFile(testFile);

m->rst = 1;

cout << dec << setw(8) << cycle << " Resetting..." << endl;

//m->an_ac_pm_thread_stop = threadStop;
@ -182,7 +294,7 @@ int main(int argc, char **argv) {
const int clocks[4] = {0x3, 0x2, 0x1, 0x0}; // 1x, 2x
const int ticks1x = 4;

while (!Verilated::gotFinish()) {
while (!Verilated::gotFinish() && ok && cycle <= runCycles) {

if (!resetDone && (cycle > resetCycle)) {
m->rst = 0;
@ -198,29 +310,50 @@ int main(int argc, char **argv) {

m->clk_1x = clocks[tick % ticks1x] >> 1;
m->clk_2x = clocks[tick % ticks1x] & 0x1;

tick++;
m->eval();

// bus is 1x clock
// 1x clock
if ((tick % ticks1x) == 0) {

// core
iu0Comp = root->a2owb->c0->iuq0->iuq_cpl_top0->iuq_cpl0->cp2_i0_completed;
iu1Comp = root->a2owb->c0->iuq0->iuq_cpl_top0->iuq_cpl0->cp2_i1_completed;
iu0CompIFAR = root->a2owb->c0->iuq0->iuq_cpl_top0->iuq_cpl0->cp2_i0_ifar;
iu1CompIFAR = root->a2owb->c0->iuq0->iuq_cpl_top0->iuq_cpl0->cp2_i1_ifar;

if (iu0Comp || iu1Comp) {
cout << dec << setw(8) << setfill('0') << uppercase << cycle << " Completed:";
if (iu0Comp)
cout << " I0:" << iu0Comp << " " << setw(16) << setfill('0') << hex << (iu0CompIFAR << 2);
if (iu1Comp)
cout << " I1:" << iu1Comp << " " << setw(16) << setfill('0') << hex << (iu1CompIFAR << 2);
cout << endl;
}

// wb
m->wb_ack = 0;
if (wbRdPending) {
m->wb_datr = mem.read(m->wb_adr);
m->wb_datr = mem.read(m->wb_adr & 0xFFFFFFFC);
m->wb_ack = 1;
cout << dec << setw(8) << setfill('0') << uppercase << cycle << " WB RD ACK RA=" << setw(8) << hex << setfill('0') << (m->wb_adr & 0xFFFFFFFC) <<
" DATA=" << m->wb_datr << endl;
wbRdPending = false;
} else if (wbWrPending) {
mem.write(m->wb_adr, m->wb_datw, m->wb_sel);
m->wb_ack = 1;
wbWrPending = false;
}

if (!wbRdPending && !wbWrPending && m->wb_cyc && m->wb_stb) {
} else if (m->wb_cyc && m->wb_stb) {
if (!m->wb_we) {
cout << dec << setw(8) << setfill('0') << uppercase << cycle << " WB RD RA=" << setw(8) << hex << setfill('0') << m->wb_adr << endl;
wbRdPending = true;
if (m->wb_adr == bootAdr) {
if (booted) {
cout << "*** Fetch to boot address (" << dec << setw(8) << bootAdr << ") after initial boot! ***" << endl;
ok = false;
} else {
booted = true;
}
}
} else {
cout << dec << setw(8) << setfill('0') << uppercase << cycle << " WB WR RA=" << setw(8) << hex << setfill('0') << m->wb_adr <<
" SEL=" << m->wb_sel << " DATA=" << m->wb_datw << endl;
@ -230,6 +363,8 @@ int main(int argc, char **argv) {

}

m->eval(); // NEED THIS!!!!

// finish clock stuff
if ((tick % ticks1x) == 0) {
cycle++;
@ -237,6 +372,9 @@ int main(int argc, char **argv) {
cout << dec << setw(8) << setfill('0') << cycle << " ...tick..." << endl;
}
}

tick++;

#ifdef TRACING
t->dump(tick);
t->flush();
@ -244,11 +382,6 @@ int main(int argc, char **argv) {

// check for fails

// hit limit
if (cycle > runCycles) {
break;
}

}

#ifdef TRACING
@ -256,6 +389,13 @@ int main(int argc, char **argv) {
#endif
m->final();

cout << endl << "Cycles run=" << cycle << endl << endl;
if (!ok) {
cout << "You are worthless and weak." << endl;
exit(EXIT_FAILURE);
} else {
cout << "You has opulence." << endl;
exit(EXIT_SUCCESS);
}

}
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