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 char *parse_optional_arg(int argc, char **argv); 28 long long get_llong_from_str(char *start); 29 30 static inline void 31 update_min(unsigned long long *a, unsigned long long *b) 32 { 33 if (*a > *b) 34 *a = *b; 35 } 36 37 static inline void 38 update_max(unsigned long long *a, unsigned long long *b) 39 { 40 if (*a < *b) 41 *a = *b; 42 } 43 44 static inline void 45 update_sum(unsigned long long *a, unsigned long long *b) 46 { 47 *a += *b; 48 } 49 50 #ifndef SCHED_ATTR_SIZE_VER0 51 struct sched_attr { 52 uint32_t size; 53 uint32_t sched_policy; 54 uint64_t sched_flags; 55 int32_t sched_nice; 56 uint32_t sched_priority; 57 uint64_t sched_runtime; 58 uint64_t sched_deadline; 59 uint64_t sched_period; 60 }; 61 #endif /* SCHED_ATTR_SIZE_VER0 */ 62 63 int parse_prio(char *arg, struct sched_attr *sched_param); 64 int parse_cpu_set(char *cpu_list, cpu_set_t *set); 65 int __set_sched_attr(int pid, struct sched_attr *attr); 66 int set_comm_sched_attr(const char *comm_prefix, struct sched_attr *attr); 67 int set_comm_cgroup(const char *comm_prefix, const char *cgroup); 68 int set_pid_cgroup(pid_t pid, const char *cgroup); 69 int set_cpu_dma_latency(int32_t latency); 70 #ifdef HAVE_LIBCPUPOWER_SUPPORT 71 int save_cpu_idle_disable_state(unsigned int cpu); 72 int restore_cpu_idle_disable_state(unsigned int cpu); 73 void free_cpu_idle_disable_states(void); 74 int set_deepest_cpu_idle_state(unsigned int cpu, unsigned int state); 75 static inline int have_libcpupower_support(void) { return 1; } 76 #else 77 static inline int save_cpu_idle_disable_state(unsigned int cpu) { return -1; } 78 static inline int restore_cpu_idle_disable_state(unsigned int cpu) { return -1; } 79 static inline void free_cpu_idle_disable_states(void) { } 80 static inline int set_deepest_cpu_idle_state(unsigned int cpu, unsigned int state) { return -1; } 81 static inline int have_libcpupower_support(void) { return 0; } 82 #endif /* HAVE_LIBCPUPOWER_SUPPORT */ 83 int auto_house_keeping(cpu_set_t *monitored_cpus); 84 85 #define ns_to_usf(x) (((double)x/1000)) 86 #define ns_to_per(total, part) ((part * 100) / (double)total) 87 88 enum result { 89 PASSED = 0, /* same as EXIT_SUCCESS */ 90 ERROR = 1, /* same as EXIT_FAILURE, an error in arguments */ 91 FAILED = 2, /* test hit the stop tracing condition */ 92 }; 93