1 // SPDX-License-Identifier: GPL-2.0 2 #include "trace.h" 3 4 /* 5 * osnoise_context - read, store, write, restore osnoise configs. 6 */ 7 struct osnoise_context { 8 int flags; 9 int ref; 10 11 char *curr_cpus; 12 char *orig_cpus; 13 14 /* 0 as init value */ 15 unsigned long long orig_runtime_us; 16 unsigned long long runtime_us; 17 18 /* 0 as init value */ 19 unsigned long long orig_period_us; 20 unsigned long long period_us; 21 22 /* 0 as init value */ 23 long long orig_timerlat_period_us; 24 long long timerlat_period_us; 25 26 /* 0 as init value */ 27 long long orig_tracing_thresh; 28 long long tracing_thresh; 29 30 /* -1 as init value because 0 is disabled */ 31 long long orig_stop_us; 32 long long stop_us; 33 34 /* -1 as init value because 0 is disabled */ 35 long long orig_stop_total_us; 36 long long stop_total_us; 37 38 /* -1 as init value because 0 is disabled */ 39 long long orig_print_stack; 40 long long print_stack; 41 }; 42 43 /* 44 * *_INIT_VALs are also invalid values, they are used to 45 * communicate errors. 46 */ 47 #define OSNOISE_OPTION_INIT_VAL (-1) 48 #define OSNOISE_TIME_INIT_VAL (0) 49 50 struct osnoise_context *osnoise_context_alloc(void); 51 int osnoise_get_context(struct osnoise_context *context); 52 void osnoise_put_context(struct osnoise_context *context); 53 54 int osnoise_set_cpus(struct osnoise_context *context, char *cpus); 55 void osnoise_restore_cpus(struct osnoise_context *context); 56 57 int osnoise_set_runtime_period(struct osnoise_context *context, 58 unsigned long long runtime, 59 unsigned long long period); 60 void osnoise_restore_runtime_period(struct osnoise_context *context); 61 62 int osnoise_set_stop_us(struct osnoise_context *context, 63 long long stop_us); 64 void osnoise_restore_stop_us(struct osnoise_context *context); 65 66 int osnoise_set_stop_total_us(struct osnoise_context *context, 67 long long stop_total_us); 68 void osnoise_restore_stop_total_us(struct osnoise_context *context); 69 70 int osnoise_set_timerlat_period_us(struct osnoise_context *context, 71 long long timerlat_period_us); 72 void osnoise_restore_timerlat_period_us(struct osnoise_context *context); 73 74 int osnoise_set_tracing_thresh(struct osnoise_context *context, 75 long long tracing_thresh); 76 void osnoise_restore_tracing_thresh(struct osnoise_context *context); 77 78 void osnoise_restore_print_stack(struct osnoise_context *context); 79 int osnoise_set_print_stack(struct osnoise_context *context, 80 long long print_stack); 81 82 /* 83 * osnoise_tool - osnoise based tool definition. 84 */ 85 struct osnoise_tool { 86 struct trace_instance trace; 87 struct osnoise_context *context; 88 void *data; 89 void *params; 90 time_t start_time; 91 }; 92 93 void osnoise_destroy_tool(struct osnoise_tool *top); 94 struct osnoise_tool *osnoise_init_tool(char *tool_name); 95 struct osnoise_tool *osnoise_init_trace_tool(char *tracer); 96 97 int osnoise_hist_main(int argc, char *argv[]); 98 int osnoise_top_main(int argc, char **argv); 99 int osnoise_main(int argc, char **argv); 100