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/* THIS IS OPEN SOURCE CODE */

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/** 

 * @file    linux-L2unit.h

 * @author  Heike Jagode

 *          jagode@eecs.utk.edu

 * Mods:	< your name here >

 *			< your email address >

 * BGPM / L2unit component 

 * 

 * Tested version of bgpm (early access)

 *

 * @brief

 *  This file has the source code for a component that enables PAPI-C to 

 *  access hardware monitoring counters for BG/Q through the bgpm library.

 */

#ifndef _PAPI_L2UNIT_H

#define _PAPI_L2UNIT_H

#include "papi.h"

#include "papi_internal.h"

#include "papi_vector.h"

#include "papi_memory.h"

#include "extras.h"

#include "../../../linux-bgq-common.h"

/*************************  DEFINES SECTION  ***********************************

 *******************************************************************************/

/* this number assumes that there will never be more events than indicated */

#define L2UNIT_MAX_COUNTERS UPC_L2_NUM_COUNTERS

#define L2UNIT_MAX_EVENTS PEVT_L2UNIT_LAST_EVENT

#define OFFSET ( PEVT_PUNIT_LAST_EVENT + 1 )

/* Stores private information for each event */

typedef struct L2UNIT_register

{

	unsigned int selector;

	/* Signifies which counter slot is being used */

	/* Indexed from 1 as 0 has a special meaning  */

} L2UNIT_register_t;

/* Used when doing register allocation */

typedef struct L2UNIT_reg_alloc

{

	L2UNIT_register_t ra_bits;

} L2UNIT_reg_alloc_t;

typedef struct L2UNIT_overflow

{

  	int threshold;

	int EventIndex;

} L2UNIT_overflow_t;

/* Holds control flags */

typedef struct L2UNIT_control_state

{

	int EventGroup;

	int EventGroup_local[512];

	int count;

	long long counters[L2UNIT_MAX_COUNTERS];

	int overflow;				// overflow enable

    int overflow_count;

    L2UNIT_overflow_t overflow_list[512];

	int bgpm_eventset_applied;	// BGPM eventGroup applied yes or no flag

} L2UNIT_control_state_t;

/* Holds per-thread information */

typedef struct L2UNIT_context

{

	L2UNIT_control_state_t state;

} L2UNIT_context_t;

#endif /* _PAPI_L2UNIT_H */