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/*
* SPDX-FileCopyrightText: Copyright 2021-2023 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ETHOSU_MONITOR_H
#define ETHOSU_MONITOR_H
#include "EventRecorder.h"
#include "EventRecorderConf.h"
#include <algorithm>
#include <ethosu_driver.h>
#include <pmu_ethosu.h>
#include <stdint.h>
#include <vector>
class EthosUMonitor {
public:
enum Backend { PRINTF, EVENT_RECORDER };
/**
* @param backend Select which backend to output performance data to.
* @param merge Merge performance samples if QREAD or STATUS has not changed
*/
EthosUMonitor(Backend backend = PRINTF, bool merge = true);
template <typename T>
void configure(ethosu_driver *drv, const T &eventIds) {
// Reset previous record
prevRecord.qread = -1;
prevRecord.status = -1;
mergeCount = 0;
// Set event ids
numEvents = std::min(static_cast<size_t>(ETHOSU_PMU_NCOUNTERS), eventIds.size());
for (size_t i = 0; i < numEvents; i++) {
ethosuEventIds[i] = eventIds[i];
}
// config pmu and set driver
ETHOSU_PMU_Enable(drv);
for (size_t i = 0; i < ETHOSU_PMU_NCOUNTERS; i++) {
ETHOSU_PMU_Set_EVTYPER(drv, i, static_cast<ethosu_pmu_event_type>(ethosuEventIds[i]));
ETHOSU_PMU_CNTR_Enable(drv, 1u << i);
}
ETHOSU_PMU_CNTR_Enable(drv, ETHOSU_PMU_CCNT_Msk);
ETHOSU_PMU_EVCNTR_ALL_Reset(drv);
ETHOSU_PMU_CYCCNT_Reset(drv);
}
void release(ethosu_driver *drv);
void monitorSample(ethosu_driver *drv);
size_t getMergeCount() const;
private:
struct EthosuEventRecord {
uint64_t cycleCount;
uint32_t qread;
uint32_t status;
struct {
uint32_t eventConfig;
uint32_t eventCount;
} event[ETHOSU_PMU_NCOUNTERS];
};
static constexpr int32_t EthosuEventComponentNo = 0x00;
ethosu_pmu_event_type ethosuEventIds[ETHOSU_PMU_NCOUNTERS];
size_t numEvents;
const Backend backend;
const bool merge;
size_t mergeCount;
EthosuEventRecord prevRecord;
};
#endif
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