hw unit tests fixes

hw/unittest/cache/testbench.cpp

@@ -0,0 +1,248 @@
+// Copyright © 2019-2023
+// 
+// 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 "cachesim.h"
+#include <iostream>
+#include <fstream>
+#include <iomanip>
+
+#define VCD_OUTPUT 1
+
+
+int REQ_RSP(CacheSim *sim){ //verified
+  unsigned int addr[4] = {0x12222222, 0xabbbbbbb, 0xcddddddd, 0xe4444444};
+  unsigned int data[4] = {0xffffffff, 0x11111111, 0x22222222, 0x33333333};
+  unsigned int rsp[4] = {0,0,0,0};
+  char responded = 0;
+  //write req
+  core_req_t* write = new core_req_t;
+  write->valid = 0xf;
+  write->rw = 0xf;
+  write->byteen = 0xffff;
+  write->addr = addr; 
+  write->data = data;
+  write->tag = 0xff;
+
+  //read req
+  core_req_t* read = new core_req_t;
+  read->valid = 0xf;
+  read->rw = 0;
+  read->byteen = 0xffff;
+  read->addr = addr;
+  read->data = addr; 
+  read->tag = 0xff;
+  
+  // reset the device
+  sim->reset();
+
+  //queue reqs
+  sim->send_req(write);
+  sim->send_req(read);
+
+  sim->run();
+
+  int check = sim->assert_equal(data, write->tag);
+  
+  if (check == 4) return 1; 
+
+  return 0;
+}
+
+int HIT_1(CacheSim *sim){
+  unsigned int addr[4] = {0x12222222, 0xabbbbbbb, 0xcddddddd, 0xe4444444};
+  unsigned int data[4] = {0xffffffff, 0x11111111, 0x22222222, 0x33333333};
+  unsigned int rsp[4] = {0,0,0,0};
+  char responded = 0;
+  //write req
+  core_req_t* write = new core_req_t;
+  write->valid = 0xf;
+  write->rw = 0xf;
+  write->byteen = 0xffff;
+  write->addr = addr; 
+  write->data = data;
+  write->tag = 0x11;
+
+  //read req
+  core_req_t* read = new core_req_t;
+  read->valid = 0xf;
+  read->rw = 0;
+  read->byteen = 0xffff;
+  read->addr = addr;
+  read->data = addr; 
+  read->tag = 0x22;
+  
+  // reset the device
+  sim->reset();
+
+  //queue reqs
+  sim->send_req(write);
+  sim->send_req(read);
+
+  sim->run();
+
+  bool check = sim->assert_equal(data, write->tag);
+  
+  return check;
+}
+
+int MISS_1(CacheSim *sim){
+  unsigned int addr1[4] = {0x12222222, 0xabbbbbbb, 0xcddddddd, 0xe4444444};
+  unsigned int addr2[4] = {0x12229222, 0xabbbb4bb, 0xcddd47dd, 0xe4423544};
+  unsigned int addr3[4] = {0x12223332, 0xabb454bb, 0xcdddeefd, 0xe4447744};
+  unsigned int data[4] = {0xffffffff, 0x11111111, 0x22222222, 0x33333333};
+  unsigned int rsp[4] = {0,0,0,0};
+  char responded = 0;
+  //write req
+  core_req_t* write = new core_req_t;
+  write->valid = 0xf;
+  write->rw = 0xf;
+  write->byteen = 0xffff;
+  write->addr = addr1; 
+  write->data = data;
+  write->tag = 0xff;
+
+  //read req
+  core_req_t* read1 = new core_req_t;
+  read1->valid = 0xf;
+  read1->rw = 0;
+  read1->byteen = 0xffff;
+  read1->addr = addr1;
+  read1->data = data; 
+  read1->tag = 0xff;
+
+  core_req_t* read2 = new core_req_t;
+  read2->valid = 0xf;
+  read2->rw = 0;
+  read2->byteen = 0xffff;
+  read2->addr = addr2;
+  read2->data = data; 
+  read2->tag = 0xff;
+  
+  core_req_t* read3 = new core_req_t;
+  read3->valid = 0xf;
+  read3->rw = 0;
+  read3->byteen = 0xffff;
+  read3->addr = addr3;
+  read3->data = data; 
+  read3->tag = 0xff;
+  
+  // reset the device
+  sim->reset();
+
+  //queue reqs
+  sim->send_req(write);
+  sim->send_req(read1);
+  sim->send_req(read2);
+  sim->send_req(read3);
+
+  sim->run();
+
+  bool check = sim->assert_equal(data, write->tag);
+  
+  return check;
+}
+int FLUSH(CacheSim *sim){
+  unsigned int addr[4] = {0x12222222, 0xabbbbbbb, 0xcddddddd, 0xe4444444};
+  unsigned int data[4] = {0xffffffff, 0x11111111, 0x22222222, 0x33333333};
+  unsigned int rsp[4] = {0,0,0,0};
+  char responded = 0;
+  //write req
+  core_req_t* write = new core_req_t;
+  write->valid = 0xf;
+  write->rw = 0xf;
+  write->byteen = 0xffff;
+  write->addr = addr; 
+  write->data = data;
+  write->tag = 0xff;
+
+  //read req
+  core_req_t* read = new core_req_t;
+  read->valid = 0xf;
+  read->rw = 0;
+  read->byteen = 0xffff;
+  read->addr = addr;
+  read->data = addr; 
+  read->tag = 0xff;
+  
+  // reset the device
+  sim->reset();
+
+  //queue reqs
+  sim->send_req(write);
+  sim->send_req(read);
+
+  sim->run();
+
+  bool check = sim->assert_equal(data, write->tag);
+  
+  return check;
+}
+
+
+int BACK_PRESSURE(CacheSim *sim){
+  //happens whenever the core is stalled or memory is stalled
+  unsigned int addr[4] = {0x12222222, 0xabbbbbbb, 0xcddddddd, 0xe4444444};
+  unsigned int data[4] = {0xffffffff, 0x11111111, 0x22222222, 0x33333333};
+  unsigned int rsp[4] = {0,0,0,0};
+  char responded = 0;
+  
+  //write req
+  core_req_t* write = new core_req_t;
+  write->valid = 0xf;
+  write->rw = 0xf;
+  write->byteen = 0xffff;
+  write->addr = addr; 
+  write->data = data;
+  write->tag = 0xff;
+
+  //read req
+  core_req_t* read = new core_req_t;
+  read->valid = 0xf;
+  read->rw = 0;
+  read->byteen = 0xffff;
+  read->addr = addr;
+  read->data = addr; 
+  read->tag = 0xff;
+  
+  // reset the device
+  sim->reset();
+
+  //queue reqs
+  for (int i = 0; i < 10; i++){
+    sim->send_req(write);
+  }
+  sim->send_req(read); 
+
+  sim->run();
+
+  bool check = sim->assert_equal(data, write->tag);
+  
+  return check;
+}
+
+
+int main(int argc, char **argv)
+{
+  //init
+  RAM ram;
+	CacheSim cachesim;
+  cachesim.attach_ram(&ram);
+  int check = REQ_RSP(&cachesim);
+  if(check){
+    std::cout << "PASSED" << std::endl;
+  } else {
+    std::cout << "FAILED" << std::endl;
+  }
+  
+	return 0;
+}