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