timerlat.h

 1// SPDX-License-Identifier: GPL-2.0
 2#include "osnoise.h"
 3
 4/*
 5 * Define timerlat tracing mode.
 6 *
 7 * There are three tracing modes:
 8 * - tracefs-only, used when BPF is unavailable.
 9 * - BPF-only, used when BPF is available and neither trace saving nor
10 * auto-analysis are enabled.
11 * - mixed mode, used when BPF is available and either trace saving or
12 * auto-analysis is enabled (which rely on sample collection through
13 * tracefs).
14 */
15enum timerlat_tracing_mode {
16	TRACING_MODE_BPF,
17	TRACING_MODE_TRACEFS,
18	TRACING_MODE_MIXED,
19};
20
21struct timerlat_params {
22	struct common_params	common;
23	long long		timerlat_period_us;
24	long long		print_stack;
25	int			dma_latency;
26	int			no_aa;
27	int			dump_tasks;
28	int			deepest_idle_state;
29	enum timerlat_tracing_mode mode;
30};
31
32#define to_timerlat_params(ptr) container_of(ptr, struct timerlat_params, common)
33
34int timerlat_apply_config(struct osnoise_tool *tool, struct timerlat_params *params);
35int timerlat_main(int argc, char *argv[]);
36int timerlat_enable(struct osnoise_tool *tool);
37void timerlat_analyze(struct osnoise_tool *tool, bool stopped);
38void timerlat_free(struct osnoise_tool *tool);
39