chore: import upstream snapshot with attribution

python/tvm/contrib/hexagon/_ci_env_check.py

@@ -0,0 +1,55 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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
+#
+#   http://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.
+
+"""Hexagon environment checks for CI usage
+
+These are required by tvm.testing and live here to avoid a circular dependency.
+"""
+
+import os
+
+import tvm
+
+ANDROID_SERIAL_NUMBER = "ANDROID_SERIAL_NUMBER"
+HEXAGON_TOOLCHAIN = "HEXAGON_TOOLCHAIN"
+
+
+def _compile_time_check():
+    """Return True if compile-time support for Hexagon is present, otherwise
+    error string.
+
+    Backs :func:`tvm.testing.env.has_hexagon_toolchain`.
+    """
+    if tvm.runtime.enabled("llvm") and tvm.target.codegen.llvm_version_major() < 7:
+        return "Hexagon requires LLVM 7 or later"
+
+    if "HEXAGON_TOOLCHAIN" not in os.environ:
+        return f"Missing environment variable {HEXAGON_TOOLCHAIN}."
+
+    return True
+
+
+def _run_time_check():
+    """Return True if run-time support for Hexagon is present, otherwise
+    error string.
+
+    Backs :func:`tvm.testing.env.has_hexagon`.
+    """
+    if ANDROID_SERIAL_NUMBER not in os.environ:
+        return f"Missing environment variable {ANDROID_SERIAL_NUMBER}."
+
+    return True