144 lines
3.6 KiB
C++
144 lines
3.6 KiB
C++
#include "VFlow___024root.h"
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#include <VFlow.h>
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#include <config.hpp>
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#include <cstdint>
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#include <cstdlib>
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#include <disasm.hpp>
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#include <filesystem>
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#include <fstream>
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#include <sdb.hpp>
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#include <trm_difftest.hpp>
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#include <trm_interface.hpp>
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#include <types.h>
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#include <vl_wrapper.hpp>
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#include <vpi_user.h>
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#include <vpi_wrapper.hpp>
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using VlModule = VlModuleInterfaceCommon<VFlow>;
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using Registers = _RegistersVPI<uint32_t, 32>;
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// SDB::SDB<NPC::npc_interface> sdb_dut;
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using CPUState = CPUStateBase<uint32_t, 32>;
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bool g_skip_memcheck = false;
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CPUState npc_cpu;
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VlModule *top;
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Registers *regs;
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vpiHandle pc = nullptr;
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extern "C" {
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void *pmem_get() {
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static auto pmem =
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new Memory<int, 128 * 1024>(config.memory_file, config.memory_file_binary,
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std::move(config.mtrace_ranges));
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return pmem;
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}
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int pmem_read(int raddr) {
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void *pmem = pmem_get();
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auto mem = static_cast<Memory<int, 128 * 1024> *>(pmem);
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// TODO: Do memory difftest at memory read and write to diagnose at a finer
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// granularity
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if (config.do_mtrace)
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mem->trace(raddr, true, regs->get_pc());
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return mem->read(raddr);
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}
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void pmem_write(int waddr, int wdata, char wmask) {
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void *pmem = pmem_get();
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auto mem = static_cast<Memory<int, 128 * 1024> *>(pmem);
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if (config.do_mtrace)
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mem->trace((std::size_t)waddr, false, regs->get_pc(), wdata);
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return mem->write((std::size_t)waddr, wdata, wmask);
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}
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}
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namespace NPC {
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void npc_memcpy(paddr_t addr, void *buf, size_t sz, bool direction) {
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if (direction == TRM_FROM_MACHINE) {
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memcpy(
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buf,
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static_cast<Memory<int, 128 * 1024> *>(pmem_get())->guest_to_host(addr),
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sz);
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}
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};
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void npc_regcpy(void *p, bool direction) {
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if (direction == TRM_FROM_MACHINE) {
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((CPUState *)p)->pc = regs->get_pc();
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for (int i = 0; i < 32; i++) {
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((CPUState *)p)->reg[i] = (*regs)[i];
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}
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}
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}
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void npc_exec(uint64_t n) {
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while (n--) {
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for (int i = 0; i < 2; i++) {
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if (top->is_posedge()) {
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// Posedge
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regs->update();
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}
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top->eval();
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}
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}
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}
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void npc_atexit(void) {
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delete top;
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delete regs;
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}
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void npc_init(int port) {
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top = new VlModule{config.wavefile};
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regs = new Registers("TOP.Flow.reg_0.regFile_", "TOP.Flow.pc.out");
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atexit(npc_atexit);
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top->reset_eval(10);
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}
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class DutTrmInterface : public TrmInterface {
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public:
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DutTrmInterface(memcpy_t f_memcpy, regcpy_t f_regcpy, exec_t f_exec,
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init_t f_init, void *cpu_state)
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: TrmInterface{f_memcpy, f_regcpy, f_exec, f_init, cpu_state} {}
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word_t at(std::string name) const override {
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return ((CPUState *)cpu_state)->at(name);
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}
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word_t at(paddr_t addr) const override {
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word_t buf;
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this->memcpy(addr, &buf, sizeof(word_t), TRM_FROM_MACHINE);
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return buf;
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}
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void print(std::ostream &os) const override {}
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};
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DutTrmInterface npc_interface =
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DutTrmInterface{&npc_memcpy, &npc_regcpy, &npc_exec, &npc_init, &npc_cpu};
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}; // namespace NPC
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extern "C" {
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word_t reg_str2val(const char *name, bool *success) {
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return npc_cpu.reg_str2val(name, success);
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}
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}
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int main(int argc, char **argv, char **env) {
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config.cli_parse(argc, argv);
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if (config.max_sim_time > 1) {
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NPC::npc_interface.exec(config.max_sim_time / 2);
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} else {
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/* -- Difftest -- */
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std::filesystem::path ref{config.lib_ref};
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RefTrmInterface ref_interface{ref};
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DifftestTrmInterface diff_interface{NPC::npc_interface, ref_interface,
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pmem_get(), 128 * 1024};
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SDB::SDB sdb_diff{diff_interface};
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int t = 8;
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sdb_diff.main_loop();
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}
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return 0;
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}
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