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 cpu_topology_map {
  11         int     socket_id;
  12         int     core_id;
  13 };
  14
  15 struct cpu_cache_level {
  16         u32     level;
  17         u32     line_size;
  18         u32     sets;
  19         u32     ways;
  20         char    *type;
  21         char    *size;
  22         char    *map;
  23 };
  24
  25 struct numa_node {
  26         u32              node;
  27         u64              mem_total;
  28         u64              mem_free;
  29         struct cpu_map  *map;
  30 };
  31
  32 struct memory_node {
  33         u64              node;
  34         u64              size;
  35         unsigned long   *set;
  36 };
  37
  38 struct perf_env {
  39         char                    *hostname;
  40         char                    *os_release;
  41         char                    *version;
  42         char                    *arch;
  43         int                     nr_cpus_online;
  44         int                     nr_cpus_avail;
  45         char                    *cpu_desc;
  46         char                    *cpuid;
  47         unsigned long long      total_mem;
  48         unsigned int            msr_pmu_type;
  49
  50         int                     nr_cmdline;
  51         int                     nr_sibling_cores;
  52         int                     nr_sibling_threads;
  53         int                     nr_numa_nodes;
  54         int                     nr_memory_nodes;
  55         int                     nr_pmu_mappings;
  56         int                     nr_groups;
  57         char                    *cmdline;
  58         const char              **cmdline_argv;
  59         char                    *sibling_cores;
  60         char                    *sibling_threads;
  61         char                    *pmu_mappings;
  62         struct cpu_topology_map *cpu;
  63         struct cpu_cache_level  *caches;
  64         int                      caches_cnt;
  65         struct numa_node        *numa_nodes;
  66         struct memory_node      *memory_nodes;
  67         unsigned long long       memory_bsize;
  68         u64                     clockid_res_ns;
  69
  70         /*
  71          * bpf_info_lock protects bpf rbtrees. This is needed because the
  72          * trees are accessed by different threads in perf-top
  73          */
  74         struct {
  75                 struct rw_semaphore     lock;
  76                 struct rb_root          infos;
  77                 u32                     infos_cnt;
  78                 struct rb_root          btfs;
  79                 u32                     btfs_cnt;
  80         } bpf_progs;
  81 };
  82
  83 struct bpf_prog_info_node;
  84 struct btf_node;
  85
  86 extern struct perf_env perf_env;
  87
  88 void perf_env__exit(struct perf_env *env);
  89
  90 int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
  91
  92 int perf_env__read_cpu_topology_map(struct perf_env *env);
  93
  94 void cpu_cache_level__free(struct cpu_cache_level *cache);
  95
  96 const char *perf_env__arch(struct perf_env *env);
  97 const char *perf_env__raw_arch(struct perf_env *env);
  98 int perf_env__nr_cpus_avail(struct perf_env *env);
  99
 100 void perf_env__init(struct perf_env *env);
 101 void perf_env__insert_bpf_prog_info(struct perf_env *env,
 102                                     struct bpf_prog_info_node *info_node);
 103 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
 104                                                         __u32 prog_id);
 105 void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
 106 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
 107 #endif /* __PERF_ENV_H */