Vortex 2.0 changes:
+ Microarchitecture optimizations + 64-bit support + Xilinx FPGA support + LLVM-16 support + Refactoring and quality control fixes minor update minor update minor update minor update minor update minor update cleanup cleanup cache bindings and memory perf refactory minor update minor update hw unit tests fixes minor update minor update minor update minor update minor update minor udpate minor update minor update minor update minor update minor update minor update minor update minor updates minor updates minor update minor update minor update minor update minor update minor update minor updates minor updates minor updates minor updates minor update minor update
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Blaise Tine
@@ -1,23 +1,56 @@
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// Copyright © 2019-2023
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdio.h>
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#include <math.h>
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#include <unordered_map>
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#include <vector>
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#include <mutex>
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#include <iostream>
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#include "svdpi.h"
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#include "verilated_vpi.h"
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#include "VX_config.h"
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#include "uuid_gen.h"
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#ifdef XLEN_64
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#define iword_t int64_t
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#define uword_t uint64_t
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#define idword_t __int128_t
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#define udword_t __uint128_t
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#else
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#define iword_t int32_t
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#define uword_t uint32_t
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#define idword_t int64_t
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#define udword_t uint64_t
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#endif
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#ifndef DEBUG_LEVEL
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#define DEBUG_LEVEL 3
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#endif
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extern "C" {
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void dpi_imul(bool enable, int a, int b, bool is_signed_a, bool is_signed_b, int* resultl, int* resulth);
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void dpi_idiv(bool enable, int a, int b, bool is_signed, int* quotient, int* remainder);
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void dpi_imul(bool enable, bool is_signed_a, bool is_signed_b, iword_t a, iword_t b, iword_t* resultl, iword_t* resulth);
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void dpi_idiv(bool enable, bool is_signed, iword_t a, iword_t b, iword_t* quotient, iword_t* remainder);
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int dpi_register();
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void dpi_assert(int inst, bool cond, int delay);
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void dpi_trace(const char* format, ...);
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void dpi_trace(int level, const char* format, ...);
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void dpi_trace_start();
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void dpi_trace_stop();
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uint64_t dpi_uuid_gen(bool reset, int wid, uint64_t PC);
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}
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bool sim_trace_enabled();
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@@ -93,49 +126,54 @@ void dpi_assert(int inst, bool cond, int delay) {
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}
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}
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void dpi_imul(bool enable, int a, int b, bool is_signed_a, bool is_signed_b, int* resultl, int* resulth) {
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///////////////////////////////////////////////////////////////////////////////
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void dpi_imul(bool enable, bool is_signed_a, bool is_signed_b, iword_t a, iword_t b, iword_t* resultl, iword_t* resulth) {
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if (!enable)
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return;
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udword_t first = *(uword_t*)&a;
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udword_t second = *(uword_t*)&b;
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udword_t mask = udword_t(-1) << (8 * sizeof(iword_t));
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uint64_t first = *(uint32_t*)&a;
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uint64_t second = *(uint32_t*)&b;
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if (is_signed_a && (first & 0x80000000)) {
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first |= 0xFFFFFFFF00000000;
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if (is_signed_a && a < 0) {
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first |= mask;
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}
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if (is_signed_b && (second & 0x80000000)) {
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second |= 0xFFFFFFFF00000000;
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if (is_signed_b && b < 0) {
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second |= mask;
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}
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uint64_t result;
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udword_t result;
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if (is_signed_a || is_signed_b) {
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result = (int64_t)first * (int64_t)second;
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result = idword_t(first) * idword_t(second);
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} else {
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result = first * second;
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}
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*resultl = result & 0xFFFFFFFF;
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*resulth = (result >> 32) & 0xFFFFFFFF;
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}
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*resultl = iword_t(result);
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*resulth = iword_t(result >> (8 * sizeof(iword_t)));
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}
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void dpi_idiv(bool enable, int a, int b, bool is_signed, int* quotient, int* remainder) {
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void dpi_idiv(bool enable, bool is_signed, iword_t a, iword_t b, iword_t* quotient, iword_t* remainder) {
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if (!enable)
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return;
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uint32_t dividen = *(uint32_t*)&a;
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uint32_t divisor = *(uint32_t*)&b;
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uword_t dividen = a;
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uword_t divisor = b;
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auto inf_neg = uword_t(1) << (8 * sizeof(iword_t) - 1);
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if (is_signed) {
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if (b == 0) {
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*quotient = -1;
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*remainder = dividen;
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} else if (dividen == 0x80000000 && divisor == 0xffffffff) {
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} else if (dividen == inf_neg && divisor == -1) {
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*remainder = 0;
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*quotient = dividen;
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} else {
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*quotient = (int32_t)dividen / (int32_t)divisor;
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*remainder = (int32_t)dividen % (int32_t)divisor;
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*quotient = (iword_t)dividen / (iword_t)divisor;
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*remainder = (iword_t)dividen % (iword_t)divisor;
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}
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} else {
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if (b == 0) {
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@@ -148,7 +186,11 @@ void dpi_idiv(bool enable, int a, int b, bool is_signed, int* quotient, int* rem
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}
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}
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void dpi_trace(const char* format, ...) {
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///////////////////////////////////////////////////////////////////////////////
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void dpi_trace(int level, const char* format, ...) {
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if (level > DEBUG_LEVEL)
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return;
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if (!sim_trace_enabled())
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return;
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va_list va;
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@@ -163,4 +205,28 @@ void dpi_trace_start() {
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void dpi_trace_stop() {
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sim_trace_enable(false);
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}
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///////////////////////////////////////////////////////////////////////////////
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std::unordered_map<uint32_t, std::shared_ptr<vortex::UUIDGenerator>> g_uuid_gens;
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uint64_t dpi_uuid_gen(bool reset, int wid, uint64_t PC) {
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if (reset) {
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g_uuid_gens.clear();
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return 0;
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}
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std::shared_ptr<vortex::UUIDGenerator> uuid_gen;
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auto it = g_uuid_gens.find(wid);
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if (it == g_uuid_gens.end()) {
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uuid_gen = std::make_shared<vortex::UUIDGenerator>();
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g_uuid_gens.emplace(wid, uuid_gen);
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} else {
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uuid_gen = it->second;
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}
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uint32_t instr_uuid = uuid_gen->get_uuid(PC);
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uint32_t instr_id = instr_uuid & 0xffff;
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uint32_t instr_ref = instr_uuid >> 16;
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uint64_t uuid = (uint64_t(instr_ref) << 32) | (wid << 16) | instr_id;
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return uuid;
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}
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