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 "rwsem.h"
   8
   9 struct perf_cpu_map;
  10
  11 struct cpu_topology_map {
  12         int     socket_id;
  13         int     die_id;
  14         int     core_id;
  15 };
  16
  17 struct cpu_cache_level {
  18         u32     level;
  19         u32     line_size;
  20         u32     sets;
  21         u32     ways;
  22         char    *type;
  23         char    *size;
  24         char    *map;
  25 };
  26
  27 struct numa_node {
  28         u32              node;
  29         u64              mem_total;
  30         u64              mem_free;
  31         struct perf_cpu_map     *map;
  32 };
  33
  34 struct memory_node {
  35         u64              node;
  36         u64              size;
  37         unsigned long   *set;
  38 };
  39
  40 struct perf_env {
  41         char                    *hostname;
  42         char                    *os_release;
  43         char                    *version;
  44         char                    *arch;
  45         int                     nr_cpus_online;
  46         int                     nr_cpus_avail;
  47         char                    *cpu_desc;
  48         char                    *cpuid;
  49         unsigned long long      total_mem;
  50         unsigned int            msr_pmu_type;
  51         unsigned int            max_branches;
  52
  53         int                     nr_cmdline;
  54         int                     nr_sibling_cores;
  55         int                     nr_sibling_dies;
  56         int                     nr_sibling_threads;
  57         int                     nr_numa_nodes;
  58         int                     nr_memory_nodes;
  59         int                     nr_pmu_mappings;
  60         int                     nr_groups;
  61         int                     nr_cpu_pmu_caps;
  62         char                    *cmdline;
  63         const char              **cmdline_argv;
  64         char                    *sibling_cores;
  65         char                    *sibling_dies;
  66         char                    *sibling_threads;
  67         char                    *pmu_mappings;
  68         char                    *cpu_pmu_caps;
  69         struct cpu_topology_map *cpu;
  70         struct cpu_cache_level  *caches;
  71         int                      caches_cnt;
  72         u32                     comp_ratio;
  73         u32                     comp_ver;
  74         u32                     comp_type;
  75         u32                     comp_level;
  76         u32                     comp_mmap_len;
  77         struct numa_node        *numa_nodes;
  78         struct memory_node      *memory_nodes;
  79         unsigned long long       memory_bsize;
  80         u64                     clockid_res_ns;
  81
  82         /*
  83          * bpf_info_lock protects bpf rbtrees. This is needed because the
  84          * trees are accessed by different threads in perf-top
  85          */
  86         struct {
  87                 struct rw_semaphore     lock;
  88                 struct rb_root          infos;
  89                 u32                     infos_cnt;
  90                 struct rb_root          btfs;
  91                 u32                     btfs_cnt;
  92         } bpf_progs;
  93
  94         /* same reason as above (for perf-top) */
  95         struct {
  96                 struct rw_semaphore     lock;
  97                 struct rb_root          tree;
  98         } cgroups;
  99
 100         /* For fast cpu to numa node lookup via perf_env__numa_node */
 101         int                     *numa_map;
 102         int                      nr_numa_map;
 103 };
 104
 105 enum perf_compress_type {
 106         PERF_COMP_NONE = 0,
 107         PERF_COMP_ZSTD,
 108         PERF_COMP_MAX
 109 };
 110
 111 struct bpf_prog_info_node;
 112 struct btf_node;
 113
 114 extern struct perf_env perf_env;
 115
 116 void perf_env__exit(struct perf_env *env);
 117
 118 int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
 119
 120 int perf_env__read_cpuid(struct perf_env *env);
 121 int perf_env__read_cpu_topology_map(struct perf_env *env);
 122
 123 void cpu_cache_level__free(struct cpu_cache_level *cache);
 124
 125 const char *perf_env__arch(struct perf_env *env);
 126 const char *perf_env__raw_arch(struct perf_env *env);
 127 int perf_env__nr_cpus_avail(struct perf_env *env);
 128
 129 void perf_env__init(struct perf_env *env);
 130 void perf_env__insert_bpf_prog_info(struct perf_env *env,
 131                                     struct bpf_prog_info_node *info_node);
 132 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
 133                                                         __u32 prog_id);
 134 void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
 135 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
 136
 137 int perf_env__numa_node(struct perf_env *env, int cpu);
 138 #endif /* __PERF_ENV_H */