text: #ifndef __PMU_H
  #define __PMU_H
  
  #include <linux/bitops.h>
  #include "../../../include/linux/perf_event.h"
  
  enum {
  	PERF_PMU_FORMAT_VALUE_CONFIG,
  	PERF_PMU_FORMAT_VALUE_CONFIG1,
  	PERF_PMU_FORMAT_VALUE_CONFIG2,
  };
  
  #define PERF_PMU_FORMAT_BITS 64
  
  struct perf_pmu__format {
  	char *name;
  	int value;
  	DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
  	struct list_head list;
  };
  
  struct perf_pmu {
  	char *name;
  	__u32 type;
  	struct list_head format;
  	struct list_head list;
  };
  
  struct perf_pmu *perf_pmu__find(char *name);
  int perf_pmu__config(struct perf_pmu *pmu, struct perf_event_attr *attr,
  		     struct list_head *head_terms);
  
  int perf_pmu_wrap(void);
  void perf_pmu_error(struct list_head *list, char *name, char const *msg);
  
  int perf_pmu__new_format(struct list_head *list, char *name,
  			 int config, unsigned long *bits);
  void perf_pmu__set_format(unsigned long *bits, long from, long to);
  
  int perf_pmu__test(void);
  #endif /* __PMU_H */
  