1 // SPDX-License-Identifier: GPL-2.0 2 3 #include <stdint.h> 4 #include <time.h> 5 #include <sched.h> 6 7 /* 8 * '18446744073709551615\0' 9 */ 10 #define BUFF_U64_STR_SIZE 24 11 #define MAX_PATH 1024 12 #define MAX_NICE 20 13 #define MIN_NICE -19 14 15 #define container_of(ptr, type, member)({ \ 16 const typeof(((type *)0)->member) *__mptr = (ptr); \ 17 (type *)((char *)__mptr - offsetof(type, member)) ; }) 18 19 extern int config_debug; 20 void debug_msg(const char *fmt, ...); 21 void err_msg(const char *fmt, ...); 22 void fatal(const char *fmt, ...); 23 24 long parse_seconds_duration(char *val); 25 void get_duration(time_t start_time, char *output, int output_size); 26 27 int parse_cpu_list(char *cpu_list, char **monitored_cpus); 28 char *parse_optional_arg(int argc, char **argv); 29 long long get_llong_from_str(char *start); 30 31 static inline void 32 update_min(unsigned long long *a, unsigned long long *b) 33 { 34 if (*a > *b) 35 *a = *b; 36 } 37 38 static inline void 39 update_max(unsigned long long *a, unsigned long long *b) 40 { 41 if (*a < *b) 42 *a = *b; 43 } 44 45 static inline void 46 update_sum(unsigned long long *a, unsigned long long *b) 47 { 48 *a += *b; 49 } 50 51 #ifndef SCHED_ATTR_SIZE_VER0 52 struct sched_attr { 53 uint32_t size; 54 uint32_t sched_policy; 55 uint64_t sched_flags; 56 int32_t sched_nice; 57 uint32_t sched_priority; 58 uint64_t sched_runtime; 59 uint64_t sched_deadline; 60 uint64_t sched_period; 61 }; 62 #endif /* SCHED_ATTR_SIZE_VER0 */ 63 64 int parse_prio(char *arg, struct sched_attr *sched_param); 65 int parse_cpu_set(char *cpu_list, cpu_set_t *set); 66 int __set_sched_attr(int pid, struct sched_attr *attr); 67 int set_comm_sched_attr(const char *comm_prefix, struct sched_attr *attr); 68 int set_comm_cgroup(const char *comm_prefix, const char *cgroup); 69 int set_pid_cgroup(pid_t pid, const char *cgroup); 70 int set_cpu_dma_latency(int32_t latency); 71 #ifdef HAVE_LIBCPUPOWER_SUPPORT 72 int save_cpu_idle_disable_state(unsigned int cpu); 73 int restore_cpu_idle_disable_state(unsigned int cpu); 74 void free_cpu_idle_disable_states(void); 75 int set_deepest_cpu_idle_state(unsigned int cpu, unsigned int state); 76 static inline int have_libcpupower_support(void) { return 1; } 77 #else 78 static inline int save_cpu_idle_disable_state(unsigned int cpu) { return -1; } 79 static inline int restore_cpu_idle_disable_state(unsigned int cpu) { return -1; } 80 static inline void free_cpu_idle_disable_states(void) { } 81 static inline int set_deepest_cpu_idle_state(unsigned int cpu, unsigned int state) { return -1; } 82 static inline int have_libcpupower_support(void) { return 0; } 83 #endif /* HAVE_LIBCPUPOWER_SUPPORT */ 84 int auto_house_keeping(cpu_set_t *monitored_cpus); 85 86 #define ns_to_usf(x) (((double)x/1000)) 87 #define ns_to_per(total, part) ((part * 100) / (double)total) 88 89 enum result { 90 PASSED = 0, /* same as EXIT_SUCCESS */ 91 ERROR = 1, /* same as EXIT_FAILURE, an error in arguments */ 92 FAILED = 2, /* test hit the stop tracing condition */ 93 }; 94