Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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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 "cpumap.h"
8#include "rwsem.h"
9
10struct perf_cpu_map;
11
12struct cpu_topology_map {
13 int socket_id;
14 int die_id;
15 int cluster_id;
16 int core_id;
17};
18
19struct 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
29struct numa_node {
30 u32 node;
31 u64 mem_total;
32 u64 mem_free;
33 struct perf_cpu_map *map;
34};
35
36struct memory_node {
37 u64 node;
38 u64 size;
39 unsigned long *set;
40};
41
42struct hybrid_node {
43 char *pmu_name;
44 char *cpus;
45};
46
47struct 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
57typedef const char *(arch_syscalls__strerrno_t)(int err);
58
59struct perf_env {
60 char *hostname;
61 char *os_release;
62 char *version;
63 char *arch;
64 int nr_cpus_online;
65 int nr_cpus_avail;
66 char *cpu_desc;
67 char *cpuid;
68 unsigned long long total_mem;
69 unsigned int msr_pmu_type;
70 unsigned int max_branches;
71 unsigned int br_cntr_nr;
72 unsigned int br_cntr_width;
73 int kernel_is_64_bit;
74
75 int nr_cmdline;
76 int nr_sibling_cores;
77 int nr_sibling_dies;
78 int nr_sibling_threads;
79 int nr_numa_nodes;
80 int nr_memory_nodes;
81 int nr_pmu_mappings;
82 int nr_groups;
83 int nr_cpu_pmu_caps;
84 int nr_hybrid_nodes;
85 int nr_pmus_with_caps;
86 char *cmdline;
87 const char **cmdline_argv;
88 char *sibling_cores;
89 char *sibling_dies;
90 char *sibling_threads;
91 char *pmu_mappings;
92 char **cpu_pmu_caps;
93 struct cpu_topology_map *cpu;
94 struct cpu_cache_level *caches;
95 int caches_cnt;
96 u32 comp_ratio;
97 u32 comp_ver;
98 u32 comp_type;
99 u32 comp_level;
100 u32 comp_mmap_len;
101 struct numa_node *numa_nodes;
102 struct memory_node *memory_nodes;
103 unsigned long long memory_bsize;
104 struct hybrid_node *hybrid_nodes;
105 struct pmu_caps *pmu_caps;
106#ifdef HAVE_LIBBPF_SUPPORT
107 /*
108 * bpf_info_lock protects bpf rbtrees. This is needed because the
109 * trees are accessed by different threads in perf-top
110 */
111 struct {
112 struct rw_semaphore lock;
113 struct rb_root infos;
114 u32 infos_cnt;
115 struct rb_root btfs;
116 u32 btfs_cnt;
117 } bpf_progs;
118#endif // HAVE_LIBBPF_SUPPORT
119 /* same reason as above (for perf-top) */
120 struct {
121 struct rw_semaphore lock;
122 struct rb_root tree;
123 } cgroups;
124
125 /* For fast cpu to numa node lookup via perf_env__numa_node */
126 int *numa_map;
127 int nr_numa_map;
128
129 /* For real clock time reference. */
130 struct {
131 u64 tod_ns;
132 u64 clockid_ns;
133 u64 clockid_res_ns;
134 int clockid;
135 /*
136 * enabled is valid for report mode, and is true if above
137 * values are set, it's set in process_clock_data
138 */
139 bool enabled;
140 } clock;
141 arch_syscalls__strerrno_t *arch_strerrno;
142};
143
144enum perf_compress_type {
145 PERF_COMP_NONE = 0,
146 PERF_COMP_ZSTD,
147 PERF_COMP_MAX
148};
149
150struct bpf_prog_info_node;
151struct btf_node;
152
153int perf_env__read_core_pmu_caps(struct perf_env *env);
154void perf_env__exit(struct perf_env *env);
155
156int perf_env__kernel_is_64_bit(struct perf_env *env);
157
158int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
159
160int perf_env__read_cpuid(struct perf_env *env);
161int perf_env__read_pmu_mappings(struct perf_env *env);
162int perf_env__nr_pmu_mappings(struct perf_env *env);
163const char *perf_env__pmu_mappings(struct perf_env *env);
164
165int perf_env__read_cpu_topology_map(struct perf_env *env);
166
167void cpu_cache_level__free(struct cpu_cache_level *cache);
168
169const char *perf_env__arch(struct perf_env *env);
170const char *perf_env__arch_strerrno(struct perf_env *env, int err);
171const char *perf_env__cpuid(struct perf_env *env);
172const char *perf_env__raw_arch(struct perf_env *env);
173int perf_env__nr_cpus_avail(struct perf_env *env);
174
175void perf_env__init(struct perf_env *env);
176#ifdef HAVE_LIBBPF_SUPPORT
177bool __perf_env__insert_bpf_prog_info(struct perf_env *env,
178 struct bpf_prog_info_node *info_node);
179bool perf_env__insert_bpf_prog_info(struct perf_env *env,
180 struct bpf_prog_info_node *info_node);
181struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
182 __u32 prog_id);
183void perf_env__iterate_bpf_prog_info(struct perf_env *env,
184 void (*cb)(struct bpf_prog_info_node *node,
185 void *data),
186 void *data);
187bool perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
188bool __perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
189struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
190struct btf_node *__perf_env__find_btf(struct perf_env *env, __u32 btf_id);
191#endif // HAVE_LIBBPF_SUPPORT
192
193int perf_env__numa_node(struct perf_env *env, struct perf_cpu cpu);
194char *perf_env__find_pmu_cap(struct perf_env *env, const char *pmu_name,
195 const char *cap);
196
197bool perf_env__has_pmu_mapping(struct perf_env *env, const char *pmu_name);
198void perf_env__find_br_cntr_info(struct perf_env *env,
199 unsigned int *nr,
200 unsigned int *width);
201
202bool x86__is_amd_cpu(void);
203bool perf_env__is_x86_amd_cpu(struct perf_env *env);
204bool x86__is_intel_cpu(void);
205bool perf_env__is_x86_intel_cpu(struct perf_env *env);
206
207#endif /* __PERF_ENV_H */