1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef __PERF_COUNTER_H__ 17 #define __PERF_COUNTER_H__ 18 #include <cstdlib> 19 #include <unistd.h> 20 21 constexpr int RECORD_NUM = 1024 * 32 * 16; 22 constexpr int NAME_LEN = 32; 23 24 constexpr int TASK_NUM = 1; 25 26 constexpr int MAX_COUNTERS = 7; 27 28 struct counters_t { 29 unsigned long nr; 30 unsigned long vals[MAX_COUNTERS]; 31 }; 32 33 struct perf_record_t { 34 char name[NAME_LEN]; 35 short begin_flag; 36 short end_flag; 37 struct counters_t counters_begin; 38 struct counters_t counters_end; 39 }; 40 41 struct perf_task_t { 42 unsigned long rd; 43 44 struct perf_record_t perf_record[RECORD_NUM]; 45 }; 46 47 struct perf_stat_t { 48 int perf_fd; 49 int n_counters; 50 pid_t pid; 51 int rsvd; 52 struct perf_task_t perf_task[TASK_NUM]; 53 }; 54 55 #define CPU_CYCLES 0x11 56 #define INST_RETIRED 0x08 57 #define INST_SPEC 0x1b 58 #define BR_RETIRED 0x21 59 #define BR_MIS_PRED_RETIRED 0x22 60 #define STALL_FRONTEND 0x23 61 #define STALL_BACKEND 0x24 62 63 unsigned long perf_begin(const char* name, int id); 64 void perf_end(int id, unsigned long rd); 65 66 void perf_counter_output_all(void); 67 void perf_counter_output_single(void); 68 void perf_counter_clear(void); 69 #endif