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Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __PERF_ENV_H
3#define __PERF_ENV_H
4
5#include <linux/types.h>
6#include <linux/rbtree.h>
7#include "rwsem.h"
8
9struct perf_cpu_map;
10
11struct cpu_topology_map {
12 int socket_id;
13 int die_id;
14 int core_id;
15};
16
17struct cpu_cache_level {
18 u32 level;
19 u32 line_size;
20 u32 sets;
21 u32 ways;
22 char *type;
23 char *size;
24 char *map;
25};
26
27struct numa_node {
28 u32 node;
29 u64 mem_total;
30 u64 mem_free;
31 struct perf_cpu_map *map;
32};
33
34struct memory_node {
35 u64 node;
36 u64 size;
37 unsigned long *set;
38};
39
40struct perf_env {
41 char *hostname;
42 char *os_release;
43 char *version;
44 char *arch;
45 int nr_cpus_online;
46 int nr_cpus_avail;
47 char *cpu_desc;
48 char *cpuid;
49 unsigned long long total_mem;
50 unsigned int msr_pmu_type;
51 unsigned int max_branches;
52
53 int nr_cmdline;
54 int nr_sibling_cores;
55 int nr_sibling_dies;
56 int nr_sibling_threads;
57 int nr_numa_nodes;
58 int nr_memory_nodes;
59 int nr_pmu_mappings;
60 int nr_groups;
61 int nr_cpu_pmu_caps;
62 char *cmdline;
63 const char **cmdline_argv;
64 char *sibling_cores;
65 char *sibling_dies;
66 char *sibling_threads;
67 char *pmu_mappings;
68 char *cpu_pmu_caps;
69 struct cpu_topology_map *cpu;
70 struct cpu_cache_level *caches;
71 int caches_cnt;
72 u32 comp_ratio;
73 u32 comp_ver;
74 u32 comp_type;
75 u32 comp_level;
76 u32 comp_mmap_len;
77 struct numa_node *numa_nodes;
78 struct memory_node *memory_nodes;
79 unsigned long long memory_bsize;
80 u64 clockid_res_ns;
81
82 /*
83 * bpf_info_lock protects bpf rbtrees. This is needed because the
84 * trees are accessed by different threads in perf-top
85 */
86 struct {
87 struct rw_semaphore lock;
88 struct rb_root infos;
89 u32 infos_cnt;
90 struct rb_root btfs;
91 u32 btfs_cnt;
92 } bpf_progs;
93
94 /* same reason as above (for perf-top) */
95 struct {
96 struct rw_semaphore lock;
97 struct rb_root tree;
98 } cgroups;
99
100 /* For fast cpu to numa node lookup via perf_env__numa_node */
101 int *numa_map;
102 int nr_numa_map;
103};
104
105enum perf_compress_type {
106 PERF_COMP_NONE = 0,
107 PERF_COMP_ZSTD,
108 PERF_COMP_MAX
109};
110
111struct bpf_prog_info_node;
112struct btf_node;
113
114extern struct perf_env perf_env;
115
116void perf_env__exit(struct perf_env *env);
117
118int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
119
120int perf_env__read_cpuid(struct perf_env *env);
121int perf_env__read_cpu_topology_map(struct perf_env *env);
122
123void cpu_cache_level__free(struct cpu_cache_level *cache);
124
125const char *perf_env__arch(struct perf_env *env);
126const char *perf_env__raw_arch(struct perf_env *env);
127int perf_env__nr_cpus_avail(struct perf_env *env);
128
129void perf_env__init(struct perf_env *env);
130void perf_env__insert_bpf_prog_info(struct perf_env *env,
131 struct bpf_prog_info_node *info_node);
132struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
133 __u32 prog_id);
134void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
135struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
136
137int perf_env__numa_node(struct perf_env *env, int cpu);
138#endif /* __PERF_ENV_H */