Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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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 hybrid_node {
41 char *pmu_name;
42 char *cpus;
43};
44
45struct hybrid_cpc_node {
46 int nr_cpu_pmu_caps;
47 unsigned int max_branches;
48 char *cpu_pmu_caps;
49 char *pmu_name;
50};
51
52struct perf_env {
53 char *hostname;
54 char *os_release;
55 char *version;
56 char *arch;
57 int nr_cpus_online;
58 int nr_cpus_avail;
59 char *cpu_desc;
60 char *cpuid;
61 unsigned long long total_mem;
62 unsigned int msr_pmu_type;
63 unsigned int max_branches;
64 int kernel_is_64_bit;
65
66 int nr_cmdline;
67 int nr_sibling_cores;
68 int nr_sibling_dies;
69 int nr_sibling_threads;
70 int nr_numa_nodes;
71 int nr_memory_nodes;
72 int nr_pmu_mappings;
73 int nr_groups;
74 int nr_cpu_pmu_caps;
75 int nr_hybrid_nodes;
76 int nr_hybrid_cpc_nodes;
77 char *cmdline;
78 const char **cmdline_argv;
79 char *sibling_cores;
80 char *sibling_dies;
81 char *sibling_threads;
82 char *pmu_mappings;
83 char *cpu_pmu_caps;
84 struct cpu_topology_map *cpu;
85 struct cpu_cache_level *caches;
86 int caches_cnt;
87 u32 comp_ratio;
88 u32 comp_ver;
89 u32 comp_type;
90 u32 comp_level;
91 u32 comp_mmap_len;
92 struct numa_node *numa_nodes;
93 struct memory_node *memory_nodes;
94 unsigned long long memory_bsize;
95 struct hybrid_node *hybrid_nodes;
96 struct hybrid_cpc_node *hybrid_cpc_nodes;
97#ifdef HAVE_LIBBPF_SUPPORT
98 /*
99 * bpf_info_lock protects bpf rbtrees. This is needed because the
100 * trees are accessed by different threads in perf-top
101 */
102 struct {
103 struct rw_semaphore lock;
104 struct rb_root infos;
105 u32 infos_cnt;
106 struct rb_root btfs;
107 u32 btfs_cnt;
108 } bpf_progs;
109#endif // HAVE_LIBBPF_SUPPORT
110 /* same reason as above (for perf-top) */
111 struct {
112 struct rw_semaphore lock;
113 struct rb_root tree;
114 } cgroups;
115
116 /* For fast cpu to numa node lookup via perf_env__numa_node */
117 int *numa_map;
118 int nr_numa_map;
119
120 /* For real clock time reference. */
121 struct {
122 u64 tod_ns;
123 u64 clockid_ns;
124 u64 clockid_res_ns;
125 int clockid;
126 /*
127 * enabled is valid for report mode, and is true if above
128 * values are set, it's set in process_clock_data
129 */
130 bool enabled;
131 } clock;
132};
133
134enum perf_compress_type {
135 PERF_COMP_NONE = 0,
136 PERF_COMP_ZSTD,
137 PERF_COMP_MAX
138};
139
140struct bpf_prog_info_node;
141struct btf_node;
142
143extern struct perf_env perf_env;
144
145void perf_env__exit(struct perf_env *env);
146
147int perf_env__kernel_is_64_bit(struct perf_env *env);
148
149int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
150
151int perf_env__read_cpuid(struct perf_env *env);
152int perf_env__read_pmu_mappings(struct perf_env *env);
153int perf_env__nr_pmu_mappings(struct perf_env *env);
154const char *perf_env__pmu_mappings(struct perf_env *env);
155
156int perf_env__read_cpu_topology_map(struct perf_env *env);
157
158void cpu_cache_level__free(struct cpu_cache_level *cache);
159
160const char *perf_env__arch(struct perf_env *env);
161const char *perf_env__cpuid(struct perf_env *env);
162const char *perf_env__raw_arch(struct perf_env *env);
163int perf_env__nr_cpus_avail(struct perf_env *env);
164
165void perf_env__init(struct perf_env *env);
166void perf_env__insert_bpf_prog_info(struct perf_env *env,
167 struct bpf_prog_info_node *info_node);
168struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
169 __u32 prog_id);
170bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
171struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
172
173int perf_env__numa_node(struct perf_env *env, int cpu);
174#endif /* __PERF_ENV_H */