1// SPDX-License-Identifier: GPL-2.0
 2#include "trace.h"
 3
 4/*
 5 * osnoise_context - read, store, write, restore osnoise configs.
 6 */
 7struct 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
50struct osnoise_context *osnoise_context_alloc(void);
51int osnoise_get_context(struct osnoise_context *context);
52void osnoise_put_context(struct osnoise_context *context);
53
54int osnoise_set_cpus(struct osnoise_context *context, char *cpus);
55void osnoise_restore_cpus(struct osnoise_context *context);
56
57int osnoise_set_runtime_period(struct osnoise_context *context,
58			       unsigned long long runtime,
59			       unsigned long long period);
60void osnoise_restore_runtime_period(struct osnoise_context *context);
61
62int osnoise_set_stop_us(struct osnoise_context *context,
63			long long stop_us);
64void osnoise_restore_stop_us(struct osnoise_context *context);
65
66int osnoise_set_stop_total_us(struct osnoise_context *context,
67			      long long stop_total_us);
68void osnoise_restore_stop_total_us(struct osnoise_context *context);
69
70int osnoise_set_timerlat_period_us(struct osnoise_context *context,
71				   long long timerlat_period_us);
72void osnoise_restore_timerlat_period_us(struct osnoise_context *context);
73
74int osnoise_set_tracing_thresh(struct osnoise_context *context,
75			       long long tracing_thresh);
76void osnoise_restore_tracing_thresh(struct osnoise_context *context);
77
78void osnoise_restore_print_stack(struct osnoise_context *context);
79int osnoise_set_print_stack(struct osnoise_context *context,
80			    long long print_stack);
81
82/*
83 * osnoise_tool -  osnoise based tool definition.
84 */
85struct 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
93void osnoise_destroy_tool(struct osnoise_tool *top);
94struct osnoise_tool *osnoise_init_tool(char *tool_name);
95struct osnoise_tool *osnoise_init_trace_tool(char *tracer);
96
97int osnoise_hist_main(int argc, char *argv[]);
98int osnoise_top_main(int argc, char **argv);
99int osnoise_main(int argc, char **argv);