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 #ifdef HAVE_LIBBPF_SUPPORT
  81         /*
  82          * bpf_info_lock protects bpf rbtrees. This is needed because the
  83          * trees are accessed by different threads in perf-top
  84          */
  85         struct {
  86                 struct rw_semaphore     lock;
  87                 struct rb_root          infos;
  88                 u32                     infos_cnt;
  89                 struct rb_root          btfs;
  90                 u32                     btfs_cnt;
  91         } bpf_progs;
  92 #endif // HAVE_LIBBPF_SUPPORT
  93         /* same reason as above (for perf-top) */
  94         struct {
  95                 struct rw_semaphore     lock;
  96                 struct rb_root          tree;
  97         } cgroups;
  98
  99         /* For fast cpu to numa node lookup via perf_env__numa_node */
 100         int                     *numa_map;
 101         int                      nr_numa_map;
 102
 103         /* For real clock time reference. */
 104         struct {
 105                 u64     tod_ns;
 106                 u64     clockid_ns;
 107                 u64     clockid_res_ns;
 108                 int     clockid;
 109                 /*
 110                  * enabled is valid for report mode, and is true if above
 111                  * values are set, it's set in process_clock_data
 112                  */
 113                 bool    enabled;
 114         } clock;
 115 };
 116
 117 enum perf_compress_type {
 118         PERF_COMP_NONE = 0,
 119         PERF_COMP_ZSTD,
 120         PERF_COMP_MAX
 121 };
 122
 123 struct bpf_prog_info_node;
 124 struct btf_node;
 125
 126 extern struct perf_env perf_env;
 127
 128 void perf_env__exit(struct perf_env *env);
 129
 130 int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]);
 131
 132 int perf_env__read_cpuid(struct perf_env *env);
 133 int perf_env__read_cpu_topology_map(struct perf_env *env);
 134
 135 void cpu_cache_level__free(struct cpu_cache_level *cache);
 136
 137 const char *perf_env__arch(struct perf_env *env);
 138 const char *perf_env__raw_arch(struct perf_env *env);
 139 int perf_env__nr_cpus_avail(struct perf_env *env);
 140
 141 void perf_env__init(struct perf_env *env);
 142 void perf_env__insert_bpf_prog_info(struct perf_env *env,
 143                                     struct bpf_prog_info_node *info_node);
 144 struct bpf_prog_info_node *perf_env__find_bpf_prog_info(struct perf_env *env,
 145                                                         __u32 prog_id);
 146 void perf_env__insert_btf(struct perf_env *env, struct btf_node *btf_node);
 147 struct btf_node *perf_env__find_btf(struct perf_env *env, __u32 btf_id);
 148
 149 int perf_env__numa_node(struct perf_env *env, int cpu);
 150 #endif /* __PERF_ENV_H */