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