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 void perf_env__find_br_cntr_info(struct perf_env *env, 196 unsigned int *nr, 197 unsigned int *width); 198 #endif /* __PERF_ENV_H */ 199