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