wehub-resource-sync
90 lines
2.9 KiB
Python
90 lines
2.9 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""Metal-owned TIRx modules."""
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from importlib import import_module
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from pathlib import Path
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from tvm_ffi.libinfo import load_lib_ctypes
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from tvm.base import _LOADED_LIBS
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_LAZY_SUBMODULES = {"op", "script", "target_tags"}
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def _detect_target_from_device(dev):
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from tvm.target import Target # pylint: disable=import-outside-toplevel
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return Target(
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{
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"kind": "metal",
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"max_shared_memory_per_block": 32768,
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"max_threads_per_block": dev.max_threads_per_block,
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"thread_warp_size": dev.warp_size,
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}
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)
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def register_backend():
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"""Register Metal-owned Python semantics."""
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from tvm.target.detect_target import register_device_target_detector
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from tvm.tirx.script.builder import ir as builder_ir # pylint: disable=import-outside-toplevel
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runtime_dir = Path(_LOADED_LIBS["tvm_runtime"]._name).resolve().parent
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try:
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# Runtime sidecars only need registration side effects; libtvm_runtime is global.
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_LOADED_LIBS["tvm_runtime_metal"] = load_lib_ctypes(
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package="tvm",
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target_name="tvm_runtime_metal",
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extra_lib_paths=[runtime_dir],
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mode="RTLD_LOCAL",
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)
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except (OSError, FileNotFoundError, RuntimeError):
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pass
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register_device_target_detector("metal", _detect_target_from_device)
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for name, namespace in script_namespaces().items():
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builder_ir.register_script_namespace(name, namespace)
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import_module(f"{__name__}.target_tags")
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def script_namespaces(**_):
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"""Return Metal-owned TVMScript namespaces."""
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from .script import MetalNamespace # pylint: disable=import-outside-toplevel
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return {"metal": MetalNamespace()}
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def script_namespace(**kwargs):
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"""Return the Metal TVMScript namespace object."""
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return script_namespaces(**kwargs)["metal"]
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def __getattr__(name: str):
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if name in _LAZY_SUBMODULES:
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return import_module(f"{__name__}.{name}")
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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__all__ = [
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"op",
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"register_backend",
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"script",
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"script_namespace",
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"script_namespaces",
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"target_tags",
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]
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