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 /* -1 as init value because 0 is off */ 43 int orig_opt_irq_disable; 44 int opt_irq_disable; 45 }; 46 47 /* 48 * *_INIT_VALs are also invalid values, they are used to 49 * communicate errors. 50 */ 51 #define OSNOISE_OPTION_INIT_VAL (-1) 52 #define OSNOISE_TIME_INIT_VAL (0) 53 54 struct osnoise_context *osnoise_context_alloc(void); 55 int osnoise_get_context(struct osnoise_context *context); 56 void osnoise_put_context(struct osnoise_context *context); 57 58 int osnoise_set_cpus(struct osnoise_context *context, char *cpus); 59 void osnoise_restore_cpus(struct osnoise_context *context); 60 61 int osnoise_set_runtime_period(struct osnoise_context *context, 62 unsigned long long runtime, 63 unsigned long long period); 64 void osnoise_restore_runtime_period(struct osnoise_context *context); 65 66 int osnoise_set_stop_us(struct osnoise_context *context, 67 long long stop_us); 68 void osnoise_restore_stop_us(struct osnoise_context *context); 69 70 int osnoise_set_stop_total_us(struct osnoise_context *context, 71 long long stop_total_us); 72 void osnoise_restore_stop_total_us(struct osnoise_context *context); 73 74 int osnoise_set_timerlat_period_us(struct osnoise_context *context, 75 long long timerlat_period_us); 76 void osnoise_restore_timerlat_period_us(struct osnoise_context *context); 77 78 int osnoise_set_tracing_thresh(struct osnoise_context *context, 79 long long tracing_thresh); 80 void osnoise_restore_tracing_thresh(struct osnoise_context *context); 81 82 void osnoise_restore_print_stack(struct osnoise_context *context); 83 int osnoise_set_print_stack(struct osnoise_context *context, 84 long long print_stack); 85 86 int osnoise_set_irq_disable(struct osnoise_context *context, bool onoff); 87 88 /* 89 * osnoise_tool - osnoise based tool definition. 90 */ 91 struct osnoise_tool { 92 struct trace_instance trace; 93 struct osnoise_context *context; 94 void *data; 95 void *params; 96 time_t start_time; 97 }; 98 99 void osnoise_destroy_tool(struct osnoise_tool *top); 100 struct osnoise_tool *osnoise_init_tool(char *tool_name); 101 struct osnoise_tool *osnoise_init_trace_tool(char *tracer); 102 103 int osnoise_hist_main(int argc, char *argv[]); 104 int osnoise_top_main(int argc, char **argv); 105 int osnoise_main(int argc, char **argv); 106 int hwnoise_main(int argc, char **argv); 107