summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/env.h
blob: 7632075a87922b264f0b54f14d961731300c65a7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PERF_ENV_H
#define __PERF_ENV_H

#include <linux/types.h>
#include <linux/rbtree.h>
#include "rwsem.h"

struct perf_cpu_map;

struct cpu_topology_map {
	int	socket_id;
	int	die_id;
	int	core_id;
};

struct cpu_cache_level {
	u32	level;
	u32	line_size;
	u32	sets;
	u32	ways;
	char	*type;
	char	*size;
	char	*map;
};

struct numa_node {
	u32		 node;
	u64		 mem_total;
	u64		 mem_free;
	struct perf_cpu_map	*map;
};

struct memory_node {
	u64		 node;
	u64		 size;
	unsigned long	*set;
};

struct perf_env {
	char			*hostname;
	char			*os_release;
	char			*version;
	char			*arch;
	int			nr_cpus_online;
	int			nr_cpus_avail;
	char			*cpu_desc;
	char			*cpuid;
	unsigned long long	total_mem;
	unsigned int		msr_pmu_type;

	int			nr_cmdline;
	int			nr_sibling_cores;
	int			nr_sibling_dies;
	int			nr_sibling_threads;
	int			nr_numa_nodes;
	int			nr_memory_nodes;
	int			nr_pmu_mappings;
	int			nr_groups;
	char			*cmdline;
	const char		**cmdline_argv;
	char			*sibling_cores;
	char			*sibling_dies;
	char			*sibling_threads;
	char			*pmu_mappings;
	struct cpu_topology_map	*cpu;
	struct cpu_cache_level	*caches;
	int			 caches_cnt;
	u32			comp_ratio;
	u32			comp_ver;
	u32			comp_type;
	u32			comp_level;
	u32			comp_mmap_len;
	struct numa_node	*numa_nodes;
	struct memory_node	*memory_nodes;
	unsigned long long	 memory_bsize;
	u64                     clockid_res_ns;

	/*
	 * bpf_info_lock protects bpf rbtrees. This is needed because the
	 * trees are accessed by different threads in perf-top
	 */
	struct {
		struct rw_semaphore	lock;
		struct rb_root		infos;
		u32			infos_cnt;
		struct rb_root		btfs;
		u32			btfs_cnt;
	} bpf_progs;

	/* same reason as above (for perf-top) */
	struct {
		struct rw_semaphore	lock;
		struct rb_root		tree;
	} cgroups;

	/* For fast cpu to numa node lookup via perf_env__numa_node */
	int			*numa_map;
	int			 nr_numa_map;
};

enum perf_compress_type {
	PERF_COMP_NONE = 0,
	PERF_COMP_ZSTD,
	PERF_COMP_MAX
};

struct bpf_prog_info_node;
struct btf_node;

extern struct perf_env perf_env;

void perf_env__exit(struct perf_env *env);

int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);

int perf_env__read_cpuid(struct perf_env *env);
int perf_env__read_cpu_topology_map(struct perf_env *env);

void cpu_cache_level__free(struct cpu_cache_level *cache);

const char *perf_env__arch(struct perf_env *env);
const char *perf_env__raw_arch(struct perf_env *env);
int perf_env__nr_cpus_avail(struct perf_env *env);

void perf_env__init(struct perf_env *env);
void perf_env__insert_bpf_prog_info(struct perf_env *env,
				    struct bpf_prog_info_node *info_node);
struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
							__u32 prog_id);
void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);

int perf_env__numa_node(struct perf_env *env, int cpu);
#endif /* __PERF_ENV_H */