Here are the data structures with brief descriptions:

Ccpu_id_t	This contains the recognized CPU features/info
Ccpu_list_t	Structure that holds a list of processor names
Ccpu_mark_t	Internal structure, used in cpu_tsc_mark, cpu_tsc_unmark and cpu_clock_by_mark
Ccpu_raw_data_t	Contains just the raw CPUID data
Cfeature_map_t
Cmatch_entry_t