tools/perf/util/env.h

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