Louis Verhaard | 5207830 | 2020-11-18 13:35:06 +0100 | [diff] [blame] | 1 | # Copyright (C) 2020 Arm Limited or its affiliates. All rights reserved. |
| 2 | # |
| 3 | # SPDX-License-Identifier: Apache-2.0 |
| 4 | # |
| 5 | # Licensed under the Apache License, Version 2.0 (the License); you may |
| 6 | # not use this file except in compliance with the License. |
| 7 | # You may obtain a copy of the License at |
| 8 | # |
| 9 | # www.apache.org/licenses/LICENSE-2.0 |
| 10 | # |
| 11 | # Unless required by applicable law or agreed to in writing, software |
| 12 | # distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| 13 | # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | # See the License for the specific language governing permissions and |
| 15 | # limitations under the License. |
| 16 | # |
| 17 | # Description: |
| 18 | # Contains unit tests for npu_create_driver_payload API for an external consumer |
| 19 | import random |
| 20 | |
| 21 | import pytest |
| 22 | |
| 23 | from ethosu.vela.api import npu_create_driver_payload |
| 24 | from ethosu.vela.api import NpuAccelerator |
| 25 | |
| 26 | |
| 27 | @pytest.mark.parametrize("accelerator", list(NpuAccelerator)) |
| 28 | def test_create_driver_payload(accelerator: NpuAccelerator): |
| 29 | """Tests npu_create_driver_payload""" |
| 30 | # Generate a random command stream with defined beginning and end |
| 31 | random.seed(0) |
| 32 | num_commands = 793 |
| 33 | register_command_stream = random.choices(range(1 << 32), k=num_commands) |
| 34 | register_command_stream[0] = 0xFEDCBA98 |
| 35 | register_command_stream[-1] = 0xA0B1C2D3 |
| 36 | payload = npu_create_driver_payload(register_command_stream, accelerator) |
| 37 | header_size = 32 # expected driver header size in bytes |
| 38 | assert len(payload) == header_size + 4 * num_commands |
| 39 | # Check that the first register command is located directly after the header |
| 40 | assert list(payload[header_size : header_size + 4]) == [0x98, 0xBA, 0xDC, 0xFE] |
| 41 | # Check that the last register command is present in the payload |
| 42 | assert list(payload[-4:]) == [0xD3, 0xC2, 0xB1, 0xA0] |