/* arch-perfctr.h COPYRIGHT FUJITSU LIMITED 2016-2017 */
#ifndef __ARCH_PERFCTR_H__
#define __ARCH_PERFCTR_H__

#include <ihk/types.h>
#include <ihk/cpu.h>

/* @ref.impl arch/arm64/include/asm/pmu.h */
struct arm_pmu {
	struct ihk_mc_interrupt_handler* handler;
	uint32_t (*read_counter)(int);
	void (*write_counter)(int, uint32_t);
	void (*reset)(void*);
	int (*enable_pmu)(void);
	void (*disable_pmu)(void);
	int (*enable_counter)(int);
	int (*disable_counter)(int);
	int (*enable_intens)(int);
	int (*disable_intens)(int);
	int (*set_event_filter)(unsigned long*, int);
	void (*write_evtype)(int, uint32_t);
	int (*get_event_idx)(int, unsigned long);
	int (*map_event)(uint32_t, uint64_t);
	int num_events;
};

static inline const struct arm_pmu* get_cpu_pmu(void)
{
	extern struct arm_pmu cpu_pmu;
	return &cpu_pmu;
}
int arm64_init_perfctr(void);
int arm64_enable_pmu(void);
void arm64_disable_pmu(void);
int armv8pmu_init(struct arm_pmu* cpu_pmu);

/* TODO[PMU]: 共通部に定義があっても良い。今後の動向を見てここの定義を削除する */
#endif