osnoise.h

 1// SPDX-License-Identifier: GPL-2.0
 2#pragma once
 3
 4#include "common.h"
 5
 6enum osnoise_mode {
 7	MODE_OSNOISE = 0,
 8	MODE_HWNOISE
 9};
10
11struct osnoise_params {
12	struct common_params	common;
13	unsigned long long	runtime;
14	unsigned long long	period;
15	long long		threshold;
16	enum osnoise_mode	mode;
17};
18
19#define to_osnoise_params(ptr) container_of(ptr, struct osnoise_params, common)
20
21/*
22 * *_INIT_VALs are also invalid values, they are used to
23 * communicate errors.
24 */
25#define OSNOISE_OPTION_INIT_VAL	(-1)
26#define OSNOISE_TIME_INIT_VAL	(0)
27
28struct osnoise_context *osnoise_context_alloc(void);
29int osnoise_get_context(struct osnoise_context *context);
30void osnoise_put_context(struct osnoise_context *context);
31
32int osnoise_set_runtime_period(struct osnoise_context *context,
33			       unsigned long long runtime,
34			       unsigned long long period);
35void osnoise_restore_runtime_period(struct osnoise_context *context);
36
37int osnoise_set_stop_us(struct osnoise_context *context,
38			long long stop_us);
39void osnoise_restore_stop_us(struct osnoise_context *context);
40
41int osnoise_set_stop_total_us(struct osnoise_context *context,
42			      long long stop_total_us);
43void osnoise_restore_stop_total_us(struct osnoise_context *context);
44
45int osnoise_set_timerlat_period_us(struct osnoise_context *context,
46				   long long timerlat_period_us);
47void osnoise_restore_timerlat_period_us(struct osnoise_context *context);
48
49int osnoise_set_tracing_thresh(struct osnoise_context *context,
50			       long long tracing_thresh);
51void osnoise_restore_tracing_thresh(struct osnoise_context *context);
52
53void osnoise_restore_print_stack(struct osnoise_context *context);
54int osnoise_set_print_stack(struct osnoise_context *context,
55			    long long print_stack);
56
57int osnoise_set_irq_disable(struct osnoise_context *context, bool onoff);
58void osnoise_report_missed_events(struct osnoise_tool *tool);
59int osnoise_apply_config(struct osnoise_tool *tool, struct osnoise_params *params);
60
61int osnoise_hist_main(int argc, char *argv[]);
62int osnoise_top_main(int argc, char **argv);
63int osnoise_enable(struct osnoise_tool *tool);
64int osnoise_main(int argc, char **argv);
65int hwnoise_main(int argc, char **argv);
66
67extern struct tool_ops timerlat_top_ops, timerlat_hist_ops;
68extern struct tool_ops osnoise_top_ops, osnoise_hist_ops;
69
70int run_tool(struct tool_ops *ops, int argc, char *argv[]);
71int hist_main_loop(struct osnoise_tool *tool);