pmu.h 3.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __PMU_H
  3. #define __PMU_H
  4. #include <linux/bitmap.h>
  5. #include <linux/compiler.h>
  6. #include <linux/perf_event.h>
  7. #include <stdbool.h>
  8. #include "parse-events.h"
  9. #include "pmu-events/pmu-events.h"
  10. struct evsel_config_term;
  11. enum {
  12. PERF_PMU_FORMAT_VALUE_CONFIG,
  13. PERF_PMU_FORMAT_VALUE_CONFIG1,
  14. PERF_PMU_FORMAT_VALUE_CONFIG2,
  15. };
  16. #define PERF_PMU_FORMAT_BITS 64
  17. #define EVENT_SOURCE_DEVICE_PATH "/bus/event_source/devices/"
  18. struct perf_event_attr;
  19. struct perf_pmu_caps {
  20. char *name;
  21. char *value;
  22. struct list_head list;
  23. };
  24. struct perf_pmu {
  25. char *name;
  26. __u32 type;
  27. bool selectable;
  28. bool is_uncore;
  29. bool auxtrace;
  30. int max_precise;
  31. struct perf_event_attr *default_config;
  32. struct perf_cpu_map *cpus;
  33. struct list_head format; /* HEAD struct perf_pmu_format -> list */
  34. struct list_head aliases; /* HEAD struct perf_pmu_alias -> list */
  35. struct list_head caps; /* HEAD struct perf_pmu_caps -> list */
  36. struct list_head list; /* ELEM */
  37. };
  38. extern struct perf_pmu perf_pmu__fake;
  39. struct perf_pmu_info {
  40. const char *unit;
  41. const char *metric_expr;
  42. const char *metric_name;
  43. double scale;
  44. bool per_pkg;
  45. bool snapshot;
  46. };
  47. #define UNIT_MAX_LEN 31 /* max length for event unit name */
  48. struct perf_pmu_alias {
  49. char *name;
  50. char *desc;
  51. char *long_desc;
  52. char *topic;
  53. char *str;
  54. struct list_head terms; /* HEAD struct parse_events_term -> list */
  55. struct list_head list; /* ELEM */
  56. char unit[UNIT_MAX_LEN+1];
  57. double scale;
  58. bool per_pkg;
  59. bool snapshot;
  60. bool deprecated;
  61. char *metric_expr;
  62. char *metric_name;
  63. };
  64. struct perf_pmu *perf_pmu__find(const char *name);
  65. struct perf_pmu *perf_pmu__find_by_type(unsigned int type);
  66. int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
  67. struct list_head *head_terms,
  68. struct parse_events_error *error);
  69. int perf_pmu__config_terms(const char *pmu_name, struct list_head *formats,
  70. struct perf_event_attr *attr,
  71. struct list_head *head_terms,
  72. bool zero, struct parse_events_error *error);
  73. __u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
  74. int perf_pmu__format_type(struct list_head *formats, const char *name);
  75. int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
  76. struct perf_pmu_info *info);
  77. struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
  78. struct list_head *head_terms);
  79. void perf_pmu_error(struct list_head *list, char *name, char const *msg);
  80. int perf_pmu__new_format(struct list_head *list, char *name,
  81. int config, unsigned long *bits);
  82. void perf_pmu__set_format(unsigned long *bits, long from, long to);
  83. int perf_pmu__format_parse(char *dir, struct list_head *head);
  84. void perf_pmu__del_formats(struct list_head *formats);
  85. struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
  86. bool is_pmu_core(const char *name);
  87. void print_pmu_events(const char *event_glob, bool name_only, bool quiet,
  88. bool long_desc, bool details_flag,
  89. bool deprecated);
  90. bool pmu_have_event(const char *pname, const char *name);
  91. int perf_pmu__scan_file(struct perf_pmu *pmu, const char *name, const char *fmt, ...) __scanf(3, 4);
  92. int perf_pmu__test(void);
  93. struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
  94. void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
  95. struct pmu_events_map *map);
  96. struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu);
  97. bool pmu_uncore_alias_match(const char *pmu_name, const char *name);
  98. void perf_pmu_free_alias(struct perf_pmu_alias *alias);
  99. int perf_pmu__convert_scale(const char *scale, char **end, double *sval);
  100. int perf_pmu__caps_parse(struct perf_pmu *pmu);
  101. #endif /* __PMU_H */