Kristofer Jonsson | b5f7cfe | 2021-03-10 17:13:52 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2021 Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: Apache-2.0 |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the License); you may |
| 7 | * not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| 14 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | /**************************************************************************** |
| 20 | * Includes |
| 21 | ****************************************************************************/ |
| 22 | |
| 23 | #include "command_stream.hpp" |
| 24 | |
| 25 | #include <inttypes.h> |
| 26 | #include <stdio.h> |
| 27 | |
| 28 | using namespace std; |
| 29 | |
| 30 | namespace EthosU { |
| 31 | namespace CommandStream { |
| 32 | |
| 33 | /**************************************************************************** |
| 34 | * DataPointer |
| 35 | ****************************************************************************/ |
| 36 | |
| 37 | DataPointer::DataPointer() : data(nullptr), size(0) {} |
| 38 | |
| 39 | DataPointer::DataPointer(const char *_data, size_t _size) : data(_data), size(_size) {} |
| 40 | |
| 41 | bool DataPointer::operator!=(const DataPointer &other) { |
| 42 | if (size != other.size) { |
| 43 | return true; |
| 44 | } |
| 45 | |
| 46 | for (size_t i = 0; i < size; i++) { |
| 47 | if (data[i] != other.data[i]) { |
| 48 | return true; |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | return false; |
| 53 | } |
| 54 | |
| 55 | /**************************************************************************** |
| 56 | * PmuConfig |
| 57 | ****************************************************************************/ |
| 58 | |
| 59 | Pmu::Pmu(ethosu_driver *_drv, const PmuEvents &_config) : |
| 60 | drv(_drv), |
| 61 | config(_config) |
| 62 | { |
| 63 | // Enable PMU block |
| 64 | ETHOSU_PMU_Enable_v2(drv); |
| 65 | |
| 66 | // Enable cycle counter |
| 67 | ETHOSU_PMU_CNTR_Enable_v2(drv, ETHOSU_PMU_CCNT_Msk); |
| 68 | |
| 69 | // Configure event types |
| 70 | for (size_t i = 0; i < config.size(); i++) { |
| 71 | ETHOSU_PMU_Set_EVTYPER_v2(drv, i, config[i]); |
| 72 | ETHOSU_PMU_CNTR_Enable_v2(drv, 1 << i); |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | void Pmu::clear() { |
| 77 | ETHOSU_PMU_CYCCNT_Reset_v2(drv); |
| 78 | ETHOSU_PMU_EVCNTR_ALL_Reset_v2(drv); |
| 79 | } |
| 80 | |
| 81 | void Pmu::print() { |
| 82 | printf("PMU={cycleCount=%llu, events=[%" PRIu32 ", %" PRIu32 ", %" PRIu32 ", %" PRIu32 "]}\n", |
| 83 | ETHOSU_PMU_Get_CCNTR_v2(drv), |
| 84 | ETHOSU_PMU_Get_EVCNTR_v2(drv, 0), |
| 85 | ETHOSU_PMU_Get_EVCNTR_v2(drv, 1), |
| 86 | ETHOSU_PMU_Get_EVCNTR_v2(drv, 2), |
| 87 | ETHOSU_PMU_Get_EVCNTR_v2(drv, 3)); |
| 88 | } |
| 89 | |
| 90 | uint64_t Pmu::getCycleCount() const { |
| 91 | return ETHOSU_PMU_Get_CCNTR_v2(drv); |
| 92 | } |
| 93 | |
| 94 | uint32_t Pmu::getEventCount(size_t index) const { |
| 95 | return ETHOSU_PMU_Get_EVCNTR_v2(drv, index); |
| 96 | } |
| 97 | |
| 98 | /**************************************************************************** |
| 99 | * CommandStream |
| 100 | ****************************************************************************/ |
| 101 | |
| 102 | CommandStream::CommandStream(const DataPointer &_commandStream, |
| 103 | const BasePointers &_basePointers, |
| 104 | const PmuEvents &_pmuEvents) : |
| 105 | drv(ethosu_reserve_driver()), |
| 106 | commandStream(_commandStream), |
| 107 | basePointers(_basePointers), |
| 108 | pmu(drv, _pmuEvents) |
| 109 | { |
| 110 | // Disable clock gating, else the NPU PMU will be clock gated and report too few cycles |
| 111 | ethosu_set_clock_and_power(&drv->dev, ETHOSU_CLOCK_Q_DISABLE, ETHOSU_POWER_Q_DISABLE); |
| 112 | |
| 113 | // Use simplified driver setup |
| 114 | ethosu_set_power_mode_v2(drv, true); |
| 115 | } |
| 116 | |
| 117 | CommandStream::~CommandStream() { |
| 118 | ethosu_set_power_mode_v2(drv, false); |
| 119 | ethosu_release_driver(drv); |
| 120 | } |
| 121 | |
| 122 | int CommandStream::run(size_t repeat) { |
| 123 | // Base pointer array |
| 124 | uint64_t baseAddress[ETHOSU_DRIVER_BASEP_INDEXES]; |
| 125 | size_t baseAddressSize[ETHOSU_DRIVER_BASEP_INDEXES]; |
| 126 | for (size_t i = 0; i < ETHOSU_DRIVER_BASEP_INDEXES; i++) { |
| 127 | baseAddress[i] = reinterpret_cast<uint64_t>(basePointers[i].data); |
| 128 | baseAddressSize[i] = reinterpret_cast<size_t>(basePointers[i].size); |
| 129 | } |
| 130 | |
| 131 | while (repeat-- > 0) { |
| 132 | int error = ethosu_invoke_v3(drv, commandStream.data, commandStream.size, baseAddress, baseAddressSize, ETHOSU_DRIVER_BASEP_INDEXES); |
| 133 | |
| 134 | if (error != 0) { |
| 135 | printf("Inference failed. error=%d\n", error); |
| 136 | return 1; |
| 137 | } |
| 138 | |
| 139 | // Wait for interrupt |
| 140 | while (true) { |
| 141 | uint16_t status; |
| 142 | ethosu_get_status_mask(&drv->dev, &status); |
| 143 | |
| 144 | // Return if NPU raise error status |
| 145 | if (status & 0xcc) { |
| 146 | printf("Job failed with error. status=0x%08x\n", status); |
| 147 | return 1; |
| 148 | } |
| 149 | |
| 150 | // Break loop if job is no longer running |
| 151 | if ((status & 1) == 0) { |
| 152 | break; |
| 153 | } |
| 154 | |
| 155 | // Sleep waiting on interrupt |
| 156 | __WFI(); |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | return 0; |
| 161 | } |
| 162 | |
| 163 | DataPointer &CommandStream::getCommandStream() |
| 164 | { |
| 165 | return commandStream; |
| 166 | } |
| 167 | |
| 168 | BasePointers &CommandStream::getBasePointers() |
| 169 | { |
| 170 | return basePointers; |
| 171 | } |
| 172 | |
| 173 | Pmu &CommandStream::getPmu() |
| 174 | { |
| 175 | return pmu; |
| 176 | } |
| 177 | |
| 178 | }; // namespace CommandStream |
| 179 | }; // namespace EthosU |