LXR linux/tools/perf/util/cpumap.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __PERF_CPUMAP_H
   3#define __PERF_CPUMAP_H
   4
   5#include <stdio.h>
   6#include <stdbool.h>
   7#include <linux/refcount.h>
   8
   9#include "perf.h"
  10#include "util/debug.h"
  11
  12struct cpu_map {
  13        refcount_t refcnt;
  14        int nr;
  15        int map[];
  16};
  17
  18struct cpu_map *cpu_map__new(const char *cpu_list);
  19struct cpu_map *cpu_map__empty_new(int nr);
  20struct cpu_map *cpu_map__dummy_new(void);
  21struct cpu_map *cpu_map__new_data(struct cpu_map_data *data);
  22struct cpu_map *cpu_map__read(FILE *file);
  23size_t cpu_map__snprint(struct cpu_map *map, char *buf, size_t size);
  24size_t cpu_map__snprint_mask(struct cpu_map *map, char *buf, size_t size);
  25size_t cpu_map__fprintf(struct cpu_map *map, FILE *fp);
  26int cpu_map__get_socket_id(int cpu);
  27int cpu_map__get_socket(struct cpu_map *map, int idx, void *data);
  28int cpu_map__get_core_id(int cpu);
  29int cpu_map__get_core(struct cpu_map *map, int idx, void *data);
  30int cpu_map__build_socket_map(struct cpu_map *cpus, struct cpu_map **sockp);
  31int cpu_map__build_core_map(struct cpu_map *cpus, struct cpu_map **corep);
  32const struct cpu_map *cpu_map__online(void); /* thread unsafe */
  33
  34struct cpu_map *cpu_map__get(struct cpu_map *map);
  35void cpu_map__put(struct cpu_map *map);
  36
  37static inline int cpu_map__socket(struct cpu_map *sock, int s)
  38{
  39        if (!sock || s > sock->nr || s < 0)
  40                return 0;
  41        return sock->map[s];
  42}
  43
  44static inline int cpu_map__id_to_socket(int id)
  45{
  46        return id >> 16;
  47}
  48
  49static inline int cpu_map__id_to_cpu(int id)
  50{
  51        return id & 0xffff;
  52}
  53
  54static inline int cpu_map__nr(const struct cpu_map *map)
  55{
  56        return map ? map->nr : 1;
  57}
  58
  59static inline bool cpu_map__empty(const struct cpu_map *map)
  60{
  61        return map ? map->map[0] == -1 : true;
  62}
  63
  64int cpu__setup_cpunode_map(void);
  65
  66int cpu__max_node(void);
  67int cpu__max_cpu(void);
  68int cpu__max_present_cpu(void);
  69int cpu__get_node(int cpu);
  70
  71int cpu_map__build_map(struct cpu_map *cpus, struct cpu_map **res,
  72                       int (*f)(struct cpu_map *map, int cpu, void *data),
  73                       void *data);
  74
  75int cpu_map__cpu(struct cpu_map *cpus, int idx);
  76bool cpu_map__has(struct cpu_map *cpus, int cpu);
  77int cpu_map__idx(struct cpu_map *cpus, int cpu);
  78#endif /* __PERF_CPUMAP_H */
  79