Categorize tests/kernels/ based on kernel type (#16799)

Signed-off-by: mgoin <mgoin64@gmail.com>

tests/kernels/core/test_opcheck.py

@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: Apache-2.0
+"""
+Tests for miscellaneous utilities
+"""
+
+import torch
+
+from tests.kernels.utils import opcheck
+
+
+def test_convert_fp8_opcheck():
+    data = torch.randn((256, 256), dtype=torch.float32, device="cuda")
+    result = torch.empty_like(data, dtype=torch.float8_e4m3fn)
+    opcheck(torch.ops._C_cache_ops.convert_fp8, (result, data, 1.0, "fp8"))
+
+
+# TODO: Add this back, currently fails with
+# csrc/cuda_utils_kernels.cu:15 'invalid argument'
+# @pytest.mark.skipif(not current_platform.is_cuda(),
+#                     reason="Only supported for CUDA")
+# def test_cuda_utils_opcheck():
+#     opcheck(torch.ops._C_cuda_utils.get_device_attribute, (0, 0))
+#     opcheck(
+#         torch.ops._C_cuda_utils.
+#         get_max_shared_memory_per_block_device_attribute, (0, ))