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/*
* Copyright (c) 2020 Arm Limited. All rights reserved.
*
* 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 MESSAGE_PROCESS_H
#define MESSAGE_PROCESS_H
#include <ethosu_core_interface.h>
#include <inference_process.hpp>
#include <mailbox.hpp>
#include <cstddef>
#include <cstdio>
#include <vector>
namespace MessageProcess {
template <uint32_t SIZE>
struct Queue {
EthosU::ethosu_core_queue_header header;
uint8_t data[SIZE];
constexpr Queue() : header({SIZE, 0, 0}) {}
constexpr EthosU::ethosu_core_queue *toQueue() {
return reinterpret_cast<EthosU::ethosu_core_queue *>(&header);
}
};
class QueueImpl {
public:
struct Vec {
const void *base;
size_t length;
};
QueueImpl(EthosU::ethosu_core_queue &queue);
bool empty() const;
size_t available() const;
size_t capacity() const;
void reset();
bool read(uint8_t *dst, uint32_t length);
bool write(const Vec *vec, size_t length);
bool write(const uint32_t type, const void *src = nullptr, uint32_t length = 0);
template <typename T>
bool write(const uint32_t type, const T &src) {
return write(type, reinterpret_cast<const void *>(&src), sizeof(src));
}
template <typename T>
bool read(T &dst) {
return read(reinterpret_cast<uint8_t *>(&dst), sizeof(dst));
}
private:
void cleanHeader() const;
void cleanHeaderData() const;
void invalidateHeader() const;
void invalidateHeaderData() const;
EthosU::ethosu_core_queue &queue;
};
class MessageProcess {
public:
MessageProcess(EthosU::ethosu_core_queue &in,
EthosU::ethosu_core_queue &out,
Mailbox::Mailbox &mbox,
InferenceProcess::InferenceProcess &inferenceProcess);
void run();
bool handleMessage();
void sendPong();
void sndErrorRspAndResetQueue(EthosU::ethosu_core_msg_err_type type, const char *message);
void sendVersionRsp();
void sendInferenceRsp(uint64_t userArg,
std::vector<InferenceProcess::DataPtr> &ofm,
bool failed,
std::vector<uint8_t> &pmuEventConfig,
uint32_t pmuCycleCounterEnable,
std::vector<uint32_t> &pmuEventCount,
uint64_t pmuCycleCounterCount);
private:
QueueImpl queueIn;
QueueImpl queueOut;
Mailbox::Mailbox &mailbox;
InferenceProcess::InferenceProcess &inferenceProcess;
void handleIrq();
static void mailboxCallback(void *userArg);
};
} // namespace MessageProcess
#endif
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