Maisam Arif
c2e12feb6a
Signed-off-by: Maisam Arif <maisarif@amd.com> Change-Id: I9c8c1335982ebd61a29da6f66c635f0a97d95f6e
104 lignes
3.8 KiB
Python
104 lignes
3.8 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (C) 2023 Advanced Micro Devices. All rights reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy of
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# this software and associated documentation files (the "Software"), to deal in
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# the Software without restriction, including without limitation the rights to
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# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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# the Software, and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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### Handle safe initialization for amdsmi
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import atexit
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import logging
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import signal
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import sys
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from pathlib import Path
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sys.path.append(f"{Path(__file__).resolve().parent}/../../share/amd_smi")
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# If the python library is installed, it will overwrite the path above
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from amdsmi import amdsmi_interface
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from amdsmi import amdsmi_exception
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# Using basic python logging for user errors and development
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logging.basicConfig(format="%(levelname)s: %(message)s", level=logging.ERROR) # User level logging
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# This traceback limit only affects this file, once the code hit's the cli portion it get's reset to the user's preference
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sys.tracebacklimit = -1 # Disable traceback when raising errors
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# On initial import set initialized variable
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AMDSMI_INITIALIZED = False
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AMD_VENDOR_ID = 4098
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def check_amdgpu_driver():
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""" Returns true if amdgpu is found in the list of initialized modules """
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amd_gpu_status_file = Path("/sys/module/amdgpu/initstate")
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if amd_gpu_status_file.exists():
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if amd_gpu_status_file.read_text(encoding="ascii").strip() == "live":
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return True
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return False
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def init_amdsmi(flag=amdsmi_interface.AmdSmiInitFlags.INIT_AMD_GPUS):
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""" Initializes AMDSMI
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Raises:
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err: AmdSmiLibraryException if not successful
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"""
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# # Check if amdgpu driver is up & Handle error gracefully
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if check_amdgpu_driver():
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# Only init AMD GPUs for now, waiting for future support for AMD CPUs
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try:
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amdsmi_interface.amdsmi_init(flag)
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except (amdsmi_interface.AmdSmiLibraryException, amdsmi_interface.AmdSmiParameterException) as e:
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if e.err_code in (amdsmi_interface.amdsmi_wrapper.AMDSMI_STATUS_NOT_INIT,
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amdsmi_interface.amdsmi_wrapper.AMDSMI_STATUS_DRIVER_NOT_LOADED):
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logging.error("Driver not loaded (amdgpu not found in modules)")
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sys.exit(-1)
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else:
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raise e
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logging.debug("AMDSMI initialized successfully, but initstate was not live")
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else:
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logging.error("Driver not found (amdgpu not found in modules)")
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sys.exit(-1)
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def shut_down_amdsmi():
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"""Shutdown AMDSMI instance
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Raises:
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err: AmdSmiLibraryException if not successful
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"""
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try:
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amdsmi_interface.amdsmi_shut_down()
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except amdsmi_exception.AmdSmiLibraryException as e:
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logging.error("Unable to cleanly shut down amd-smi-lib")
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raise e
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def signal_handler(sig, frame):
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logging.debug(f"Handling signal: {sig}")
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sys.exit(0)
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if not AMDSMI_INITIALIZED:
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init_amdsmi()
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AMDSMI_INITIALIZED = True
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signal.signal(signal.SIGINT, signal_handler)
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signal.signal(signal.SIGTERM, signal_handler)
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atexit.register(shut_down_amdsmi)
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