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 "cpumap.h"
8 #include "rwsem.h"
9
10 struct perf_cpu_map;
11
12 struct cpu_topology_map {
13 int socket_id;
14 int die_id;
15 int cluster_id;
16 int core_id;
17 };
18
19 struct cpu_cache_level {
20 u32 level;
21 u32 line_size;
22 u32 sets;
23 u32 ways;
24 char *type;
25 char *size;
26 char *map;
27 };
28
29 struct numa_node {
30 u32 node;
31 u64 mem_total;
32 u64 mem_free;
33 struct perf_cpu_map *map;
34 };
35
36 struct memory_node {
37 u64 node;
38 u64 size;
39 unsigned long *set;
40 };
41
42 struct hybrid_node {
43 char *pmu_name;
44 char *cpus;
45 };
46
47 struct pmu_caps {
48 int nr_caps;
49 unsigned int max_branches;
50 unsigned int br_cntr_nr;
51 unsigned int br_cntr_width;
52
53 char **caps;
54 char *pmu_name;
55 };
56
57 typedef const char *(arch_syscalls__strerrno_t)(int err);
58
59 arch_syscalls__strerrno_t *arch_syscalls__strerrno_function(const char *arch);
60
61 struct perf_env {
62 char *hostname;
63 char *os_release;
64 char *version;
65 char *arch;
66 int nr_cpus_online;
67 int nr_cpus_avail;
68 char *cpu_desc;
69 char *cpuid;
70 unsigned long long total_mem;
71 unsigned int msr_pmu_type;
72 unsigned int max_branches;
73 unsigned int br_cntr_nr;
74 unsigned int br_cntr_width;
75 int kernel_is_64_bit;
76
77 int nr_cmdline;
78 int nr_sibling_cores;
79 int nr_sibling_dies;
80 int nr_sibling_threads;
81 int nr_numa_nodes;
82 int nr_memory_nodes;
83 int nr_pmu_mappings;
84 int nr_groups;
85 int nr_cpu_pmu_caps;
86 int nr_hybrid_nodes;
87 int nr_pmus_with_caps;
88 char *cmdline;
89 const char **cmdline_argv;
90 char *sibling_cores;
91 char *sibling_dies;
92 char *sibling_threads;
93 char *pmu_mappings;
94 char **cpu_pmu_caps;
95 struct cpu_topology_map *cpu;
96 struct cpu_cache_level *caches;
97 int caches_cnt;
98 u32 comp_ratio;
99 u32 comp_ver;
100 u32 comp_type;
101 u32 comp_level;
102 u32 comp_mmap_len;
103 struct numa_node *numa_nodes;
104 struct memory_node *memory_nodes;
105 unsigned long long memory_bsize;
106 struct hybrid_node *hybrid_nodes;
107 struct pmu_caps *pmu_caps;
108 #ifdef HAVE_LIBBPF_SUPPORT
109 /*
110 * bpf_info_lock protects bpf rbtrees. This is needed because the
111 * trees are accessed by different threads in perf-top
112 */
113 struct {
114 struct rw_semaphore lock;
115 struct rb_root infos;
116 u32 infos_cnt;
117 struct rb_root btfs;
118 u32 btfs_cnt;
119 } bpf_progs;
120 #endif // HAVE_LIBBPF_SUPPORT
121 /* same reason as above (for perf-top) */
122 struct {
123 struct rw_semaphore lock;
124 struct rb_root tree;
125 } cgroups;
126
127 /* For fast cpu to numa node lookup via perf_env__numa_node */
128 int *numa_map;
129 int nr_numa_map;
130
131 /* For real clock time reference. */
132 struct {
133 u64 tod_ns;
134 u64 clockid_ns;
135 u64 clockid_res_ns;
136 int clockid;
137 /*
138 * enabled is valid for report mode, and is true if above
139 * values are set, it's set in process_clock_data
140 */
141 bool enabled;
142 } clock;
143 arch_syscalls__strerrno_t *arch_strerrno;
144 };
145
146 enum perf_compress_type {
147 PERF_COMP_NONE = 0,
148 PERF_COMP_ZSTD,
149 PERF_COMP_MAX
150 };
151
152 struct bpf_prog_info_node;
153 struct btf_node;
154
155 extern struct perf_env perf_env;
156
157 void perf_env__exit(struct perf_env *env);
158
159 int perf_env__kernel_is_64_bit(struct perf_env *env);
160
161 int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
162
163 int perf_env__read_cpuid(struct perf_env *env);
164 int perf_env__read_pmu_mappings(struct perf_env *env);
165 int perf_env__nr_pmu_mappings(struct perf_env *env);
166 const char *perf_env__pmu_mappings(struct perf_env *env);
167
168 int perf_env__read_cpu_topology_map(struct perf_env *env);
169
170 void cpu_cache_level__free(struct cpu_cache_level *cache);
171
172 const char *perf_env__arch(struct perf_env *env);
173 const char *perf_env__arch_strerrno(struct perf_env *env, int err);
174 const char *perf_env__cpuid(struct perf_env *env);
175 const char *perf_env__raw_arch(struct perf_env *env);
176 int perf_env__nr_cpus_avail(struct perf_env *env);
177
178 void perf_env__init(struct perf_env *env);
179 void __perf_env__insert_bpf_prog_info(struct perf_env *env,
180 struct bpf_prog_info_node *info_node);
181 void perf_env__insert_bpf_prog_info(struct perf_env *env,
182 struct bpf_prog_info_node *info_node);
183 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
184 __u32 prog_id);
185 bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
186 bool __perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
187 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
188 struct btf_node *__perf_env__find_btf(struct perf_env *env, __u32 btf_id);
189
190 int perf_env__numa_node(struct perf_env *env, struct perf_cpu cpu);
191 char *perf_env__find_pmu_cap(struct perf_env *env, const char *pmu_name,
192 const char *cap);
193
194 bool perf_env__has_pmu_mapping(struct perf_env *env, const char *pmu_name);
195 #endif /* __PERF_ENV_H */
196
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.