1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #pragma once 3 4 #include "actions.h" 5 #include "timerlat_u.h" 6 #include "trace.h" 7 #include "utils.h" 8 9 /* 10 * osnoise_context - read, store, write, restore osnoise configs. 11 */ 12 struct osnoise_context { 13 int flags; 14 int ref; 15 16 char *curr_cpus; 17 char *orig_cpus; 18 19 /* 0 as init value */ 20 unsigned long long orig_runtime_us; 21 unsigned long long runtime_us; 22 23 /* 0 as init value */ 24 unsigned long long orig_period_us; 25 unsigned long long period_us; 26 27 /* 0 as init value */ 28 long long orig_timerlat_period_us; 29 long long timerlat_period_us; 30 31 /* 0 as init value */ 32 long long orig_tracing_thresh; 33 long long tracing_thresh; 34 35 /* -1 as init value because 0 is disabled */ 36 long long orig_stop_us; 37 long long stop_us; 38 39 /* -1 as init value because 0 is disabled */ 40 long long orig_stop_total_us; 41 long long stop_total_us; 42 43 /* -1 as init value because 0 is disabled */ 44 long long orig_print_stack; 45 long long print_stack; 46 47 /* -1 as init value because 0 is off */ 48 int orig_opt_irq_disable; 49 int opt_irq_disable; 50 51 /* -1 as init value because 0 is off */ 52 int orig_opt_workload; 53 int opt_workload; 54 }; 55 56 extern struct trace_instance *trace_inst; 57 extern int stop_tracing; 58 59 struct hist_params { 60 char no_irq; 61 char no_thread; 62 char no_header; 63 char no_summary; 64 char no_index; 65 char with_zeros; 66 int bucket_size; 67 int entries; 68 }; 69 70 /* 71 * common_params - Parameters shared between timerlat_params and osnoise_params 72 */ 73 struct common_params { 74 /* trace configuration */ 75 char *cpus; 76 cpu_set_t monitored_cpus; 77 struct trace_events *events; 78 int buffer_size; 79 80 /* Timing parameters */ 81 int warmup; 82 long long stop_us; 83 long long stop_total_us; 84 int sleep_time; 85 int duration; 86 87 /* Scheduling parameters */ 88 int set_sched; 89 struct sched_attr sched_param; 90 int cgroup; 91 char *cgroup_name; 92 int hk_cpus; 93 cpu_set_t hk_cpu_set; 94 95 /* Other parameters */ 96 struct hist_params hist; 97 int output_divisor; 98 int pretty_output; 99 int quiet; 100 int user_workload; 101 int kernel_workload; 102 int user_data; 103 int aa_only; 104 105 struct actions threshold_actions; 106 struct actions end_actions; 107 struct timerlat_u_params user; 108 }; 109 110 #define for_each_monitored_cpu(cpu, nr_cpus, common) \ 111 for (cpu = 0; cpu < nr_cpus; cpu++) \ 112 if (!(common)->cpus || CPU_ISSET(cpu, &(common)->monitored_cpus)) 113 114 struct tool_ops; 115 116 /* 117 * osnoise_tool - osnoise based tool definition. 118 * 119 * Only the "trace" and "context" fields are used for 120 * the additional trace instances (record and aa). 121 */ 122 struct osnoise_tool { 123 struct tool_ops *ops; 124 struct trace_instance trace; 125 struct osnoise_context *context; 126 void *data; 127 struct common_params *params; 128 time_t start_time; 129 struct osnoise_tool *record; 130 struct osnoise_tool *aa; 131 }; 132 133 struct tool_ops { 134 const char *tracer; 135 const char *comm_prefix; 136 struct common_params *(*parse_args)(int argc, char *argv[]); 137 struct osnoise_tool *(*init_tool)(struct common_params *params); 138 int (*apply_config)(struct osnoise_tool *tool); 139 int (*enable)(struct osnoise_tool *tool); 140 int (*main)(struct osnoise_tool *tool); 141 void (*print_stats)(struct osnoise_tool *tool); 142 void (*analyze)(struct osnoise_tool *tool, bool stopped); 143 void (*free)(struct osnoise_tool *tool); 144 }; 145 146 int osnoise_set_cpus(struct osnoise_context *context, char *cpus); 147 void osnoise_restore_cpus(struct osnoise_context *context); 148 149 int osnoise_set_workload(struct osnoise_context *context, bool onoff); 150 151 void osnoise_destroy_tool(struct osnoise_tool *top); 152 struct osnoise_tool *osnoise_init_tool(char *tool_name); 153 struct osnoise_tool *osnoise_init_trace_tool(const char *tracer); 154 bool osnoise_trace_is_off(struct osnoise_tool *tool, struct osnoise_tool *record); 155 156 int common_apply_config(struct osnoise_tool *tool, struct common_params *params); 157 int top_main_loop(struct osnoise_tool *tool); 158 int hist_main_loop(struct osnoise_tool *tool); 159