tests: make huancunop test debug friendly

tests/cacheoptest/llc/src/huancunop.c

@@ -19,7 +19,7 @@
 #define CTRL_WAY_OFFSET 16
 #define CTRL_DATA_OFFSET 24
 #define CTRL_DIR_OFFSET 32
-#define TEST_BUFFER_SIZE 32
+#define TEST_BUFFER_SIZE 128
 #define L3_SIZE_KB (3 * 1024)
 #define L3_NR_WAY 6
 #define L3_NR_BANK 4
@@ -35,69 +35,84 @@ unsigned int log2(unsigned int n) {
   return result;
 }
 
-volatile uint64_t test_buffer[TEST_BUFFER_SIZE] = {0};
+volatile uint64_t test_buffer[TEST_BUFFER_SIZE] __attribute__((aligned(64))) = {0};
 
 void success() {
   printf("test passed.\n");
-  asm("li a0, 0\n");
-  asm(".word 0x0000006b\n");
+  // asm("li a0, 0\n");
+  // asm(".word 0x0000006b\n");
+  _halt(0);
 }
 
 void failure() {
   printf("test failed.\n");
-  asm("li a0, 1\n");
-  asm(".word 0x0000006b\n");
+  // asm("li a0, 1\n");
+  // asm(".word 0x0000006b\n");
+  _halt(1);
 }
 
-int main() {
-  printf("HuanCun op (mmio based) test. Note that --no-diff is required!\n");
-  printf("HuanCun l3 size is set to %d KB, nr_way is set to %d, nr_bank is set to %d, ", L3_SIZE_KB, L3_NR_WAY, L3_NR_BANK);
-  unsigned int set_size = L3_SIZE_KB * 1024 / L3_NR_BANK / L3_NR_WAY / 64;
-  unsigned int set_len = log2(set_size);
-  printf("nr_set is %u, set_len is %u\n", set_size, set_len);
-  
-  /* Fill data for test_buffer */
-  for (int i = 0; i < TEST_BUFFER_SIZE; i++) {
-    test_buffer[i] = (uint64_t)&test_buffer[i];
-  }
-
-  /* In our LLC design, full address is passed by CtrlUnit to one of the SliceCtrls according to BankBits
-   * Afterwards, BankBits are truncated in SliceCtrl to generate real MSHR request
-   * So we should provide full address here
-   */
-  uint64_t tag = ((uint64_t)&test_buffer >> OFFSET_LEN) >> set_len; // paddr to l3 tag
-  uint64_t set = ((uint64_t)&test_buffer >> OFFSET_LEN) & (set_size-1); // paddr to l3 set
-  *(uint64_t*)(CACHE_CTRL_BASE + CTRL_TAG_OFFSET) = tag;
-  *(uint64_t*)(CACHE_CTRL_BASE + CTRL_SET_OFFSET) = set;
-  printf("addr 0x%llx tag 0x%llx set 0x%llx\n", &test_buffer, tag, set);
-  asm("fence\n");
-
+void test1() {
   test_buffer[0] = 1;
   asm("fence\n");
   (*(uint64_t*)CACHE_CMD_BASE) = CMD_CMO_INV;
   printf("huancun op invalid done\n");
   printf("data %lx\n", test_buffer[0]);
   if (test_buffer[0] == 1) {
+    printf("CMO_INV failed: data right %lx wrong %lx", 1, test_buffer[0]);
     failure();
   }
+}
 
+void test2() {
   test_buffer[0] = 2;
   asm("fence\n");
   (*(uint64_t*)CACHE_CMD_BASE) = CMD_CMO_CLEAN;
   printf("huancun op clean done\n");
   printf("data %lx\n", test_buffer[0]);
   if (test_buffer[0] != 2) {
+    printf("CMD_CMO_CLEAN failed: data right %lx wrong %lx", 2, test_buffer[0]);
     failure();
   }
+}
 
+void test3() {
   test_buffer[0] = 3;
   asm("fence\n");
   (*(uint64_t*)CACHE_CMD_BASE) = CMD_CMO_FLUSH;
   printf("huancun op flush done\n");
   printf("data %lx\n", test_buffer[0]);
   if (test_buffer[0] != 3) {
+    printf("CMD_CMO_FLUSH failed: data right %lx wrong %lx", 3, test_buffer[0]);
     failure();
   }
+}
+
+int main() {
+  printf("HuanCun op (mmio based) test. Note that --no-diff is required!\n");
+  printf("HuanCun l3 size is set to %d KB, nr_way is set to %d, nr_bank is set to %d, ", L3_SIZE_KB, L3_NR_WAY, L3_NR_BANK);
+  unsigned int set_size = L3_SIZE_KB * 1024 / L3_NR_BANK / L3_NR_WAY / 64;
+  unsigned int set_len = log2(set_size);
+  printf("nr_set is %u, set_len is %u\n", set_size, set_len);
+  
+  /* Fill data for test_buffer */
+  for (int i = 0; i < TEST_BUFFER_SIZE; i++) {
+    test_buffer[i] = (uint64_t)&test_buffer[i];
+  }
+
+  /* In our LLC design, full address is passed by CtrlUnit to one of the SliceCtrls according to BankBits
+   * Afterwards, BankBits are truncated in SliceCtrl to generate real MSHR request
+   * So we should provide full address here
+   */
+  uint64_t tag = ((uint64_t)&test_buffer >> OFFSET_LEN) >> set_len; // paddr to l3 tag
+  uint64_t set = ((uint64_t)&test_buffer >> OFFSET_LEN) & (set_size-1); // paddr to l3 set
+  *(uint64_t*)(CACHE_CTRL_BASE + CTRL_TAG_OFFSET) = tag;
+  *(uint64_t*)(CACHE_CTRL_BASE + CTRL_SET_OFFSET) = set;
+  printf("addr 0x%llx tag 0x%llx set 0x%llx\n", &test_buffer, tag, set);
+  asm("fence\n");
+
+  test1();
+  test2();
+  test3();
 
   // test to be added for a wider addr range
   success();