pmu.h

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/*
 * Copyright (c) 2026 Advanced Micro Devices, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_ZEPHYR_PMU_H_
#define ZEPHYR_INCLUDE_ZEPHYR_PMU_H_
 
#include <zephyr/autoconf.h>
#include <stdint.h>
#include <stdbool.h>
 
#if defined(CONFIG_ARM64)
#include <zephyr/arch/arm64/pmuv3.h>
#else
typedef uint32_t pmu_evt_t;

typedef struct {
        uint32_t implementer;
        uint32_t idcode;
} pmu_info_t;
#endif
 
#ifdef __cplusplus
extern "C" {
#endif


#define PMU_MAX_COUNTERS 8

struct pmu_counter_config {
        pmu_evt_t event;
        bool enabled;
};

int pmu_init(void);

uint32_t pmu_num_counters(void);

void pmu_get_info(pmu_info_t *info);

int pmu_counter_config(uint32_t counter, pmu_evt_t event);

void pmu_counter_enable(uint32_t counter);

void pmu_counter_disable(uint32_t counter);

void pmu_counter_enable_all(void);

void pmu_counter_disable_all(void);

uint64_t pmu_counter_read(uint32_t counter);

void pmu_counter_reset(uint32_t counter);

void pmu_counter_reset_all(void);

uint64_t pmu_cycle_count(void);

void pmu_cycle_reset(void);

void pmu_start(void);

void pmu_stop(void);

bool pmu_counter_overflow(uint32_t counter);

void pmu_counter_clear_overflow(uint32_t counter);

 
#ifdef __cplusplus
}
#endif
 
#endif /* ZEPHYR_INCLUDE_ZEPHYR_PMU_H_ */