oprofile: op_alloc_counter.h Source File

00001 /**
00002  * @file op_alloc_counter.h
00003  * hardware counter allocation
00004  *
00005  * You can have silliness here.
00006  *
00007  * @remark Copyright 2002 OProfile authors
00008  * @remark Read the file COPYING
00009  *
00010  * @author John Levon
00011  * @author Philippe Elie
00012  */
00013 
00014 #ifndef OP_ALLOC_COUNTER_H
00015 #define OP_ALLOC_COUNTER_H
00016 
00017 #include <stddef.h>
00018 
00019 #include "op_cpu_type.h"
00020 
00021 struct op_event;
00022 
00023 #ifdef __cplusplus
00024 extern "C" {
00025 #endif
00026 
00027 /**
00028  * @param pev  array of selected event we want to bind to counter
00029  * @param nr_events  size of pev array
00030  * @param cpu_type  cpu type
00031  *
00032  * Try to calculate a binding between passed event in pev and counter number.
00033  * The binding is returned in a size_t * where returned ptr[i] is the counter
00034  * number bound to pev[i]
00035  */
00036 size_t * map_event_to_counter(struct op_event const * pev[], int nr_events,
00037                               op_cpu cpu_type);
00038 
00039 #ifdef __cplusplus
00040 }
00041 #endif
00042 
00043 #endif /* !OP_ALLOC_COUNTER_H */