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#ifndef __mvCpuL2Cntrs_h__
#define __mvCpuL2Cntrs_h__

#include "mvTypes.h"
#include "mvOs.h"

#define MV_CPU_L2_CNTRS_NUM         2

typedef enum {
	MV_CPU_L2_CNTRS_ENABLE = 0,
	MV_CPU_L2_CNTRS_DATA_REQ,
	MV_CPU_L2_CNTRS_DATA_MISS_REQ,
	MV_CPU_L2_CNTRS_INST_REQ,
	MV_CPU_L2_CNTRS_INST_MISS_REQ,
	MV_CPU_L2_CNTRS_DATA_READ_REQ,
	MV_CPU_L2_CNTRS_DATA_READ_MISS_REQ,
	MV_CPU_L2_CNTRS_DATA_WRITE_REQ,
	MV_CPU_L2_CNTRS_DATA_WRITE_MISS_REQ,
	MV_CPU_L2_CNTRS_RESERVED,
	MV_CPU_L2_CNTRS_DIRTY_EVICT_REQ,
	MV_CPU_L2_CNTRS_EVICT_BUFF_STALL,
	MV_CPU_L2_CNTRS_ACTIVE_CYCLES,

} MV_CPU_L2_CNTRS_OPS;

typedef struct {
	char name[16];
	MV_CPU_L2_CNTRS_OPS operation;
	int opIdx;
	MV_U32 overhead;

} MV_CPU_L2_CNTRS_ENTRY;

typedef struct {
	char name[16];
	MV_U32 num_of_measurements;
	MV_U32 avg_sample_count;
	MV_U64 counters_before[MV_CPU_L2_CNTRS_NUM];
	MV_U64 counters_after[MV_CPU_L2_CNTRS_NUM];
	MV_U64 counters_sum[MV_CPU_L2_CNTRS_NUM];

} MV_CPU_L2_CNTRS_EVENT;

MV_STATUS mvCpuL2CntrsProgram(int counter, MV_CPU_L2_CNTRS_OPS op, char *name, MV_U32 overhead);
void mvCpuL2CntrsInit(void);
MV_CPU_L2_CNTRS_EVENT *mvCpuL2CntrsEventCreate(char *name, MV_U32 print_threshold);
void mvCpuL2CntrsEventDelete(MV_CPU_L2_CNTRS_EVENT *event);
void mvCpuL2CntrsReset(void);
void mvCpuL2CntrsShow(MV_CPU_L2_CNTRS_EVENT *pEvent);
void mvCpuL2CntrsEventClear(MV_CPU_L2_CNTRS_EVENT *pEvent);

static INLINE MV_U64 mvCpuL2CntrsRead(const int counter)
{
	MV_U32 low = 0, high = 0;

	switch (counter) {
	case 0:
MV_ASM("mrc p15, 6, %0, c15, c13, 0" : "=r"(low));
MV_ASM("mrc p15, 6, %0, c15, c13, 1" : "=r"(high));
		break;

	case 1:
MV_ASM("mrc p15, 6, %0, c15, c13, 2" : "=r"(low));
MV_ASM("mrc p15, 6, %0, c15, c13, 3" : "=r"(high));
		break;

	default:
		mvOsPrintf("mvCpuL2CntrsRead: bad counter number (%d)\n", counter);
	}
	return (((MV_U64) high << 32) | low);

}

static INLINE void mvCpuL2CntrsReadBefore(MV_CPU_L2_CNTRS_EVENT *pEvent)
{
	int i;

	for (i = 0; i < MV_CPU_L2_CNTRS_NUM; i++)
		pEvent->counters_before[i] = mvCpuL2CntrsRead(i);
}

static INLINE void mvCpuL2CntrsReadAfter(MV_CPU_L2_CNTRS_EVENT *pEvent)
{
	int i;

	for (i = 0; i < MV_CPU_L2_CNTRS_NUM; i++) {
		pEvent->counters_after[i] = mvCpuL2CntrsRead(i);
		pEvent->counters_sum[i] += (pEvent->counters_after[i] - pEvent->counters_before[i]);
	}
	pEvent->num_of_measurements++;
}

#ifdef CONFIG_MV_CPU_L2_PERF_CNTRS

#define MV_CPU_L2_CNTRS_READ(counter)   mvCpuL2CntrsRead(counter)

#define MV_CPU_L2_CNTRS_START(event)	mvCpuL2CntrsReadBefore(event)

#define MV_CPU_L2_CNTRS_STOP(event)	    mvCpuL2CntrsReadAfter(event)

#define MV_CPU_L2_CNTRS_SHOW(event)	    mvCpuL2CntrsShow(event)

#else

#define MV_CPU_L2_CNTRS_READ(counter)
#define MV_CPU_L2_CNTRS_START(event)
#define MV_CPU_L2_CNTRS_STOP(event)
#define MV_CPU_L2_CNTRS_SHOW(event)

#endif /* CONFIG_MV_CPU_L2_PERF_CNTRS */

#endif /* __mvCpuL2Cntrs_h__ */