[MUSA] Add get_device_capability/get_device_version and remove get_diffusion_model_impl_qualname/prepare_diffusion_op_runtime in musa/platform.py (#3179)

Signed-off-by: Xiaodong Ye <yeahdongcn@gmail.com>

vllm_omni/platforms/musa/platform.py

@@ -1,10 +1,10 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
-from typing import Any
 
 import torch
 from vllm.logger import init_logger
+from vllm.platforms.interface import DeviceCapability
 from vllm_musa.platform import MUSAPlatformBase
 
 from vllm_omni.diffusion.attention.backends.registry import DiffusionAttentionBackendEnum
@@ -34,18 +34,6 @@ class MUSAOmniPlatform(OmniPlatform, MUSAPlatformBase):
     def get_default_stage_config_path(cls) -> str:
         return "vllm_omni/model_executor/stage_configs"
 
-    @classmethod
-    def get_diffusion_model_impl_qualname(cls, op_name: str) -> str:
-        # MUSA uses default implementations for diffusion ops
-        if op_name == "hunyuan_fused_moe":
-            return "vllm_omni.diffusion.models.hunyuan_image3.hunyuan_fused_moe.HunyuanFusedMoEDefault"
-        return super().get_diffusion_model_impl_qualname(op_name)
-
-    @classmethod
-    def prepare_diffusion_op_runtime(cls, op_name: str, **kwargs: Any) -> None:
-        # MUSA uses default runtime preparation
-        return None
-
     @classmethod
     def has_flash_attn_package(cls) -> bool:
         from vllm_omni.diffusion.attention.backends.utils.fa import is_flash_attn_installed
@@ -135,11 +123,22 @@ class MUSAOmniPlatform(OmniPlatform, MUSAPlatformBase):
             return torch.device("musa")
         return torch.device("musa", local_rank)
 
+    @classmethod
+    def get_device_capability(cls, device_id: int = 0) -> DeviceCapability | None:
+        """Get the compute capability of the MUSA device."""
+        major, minor = torch.cuda.get_device_capability(device_id)
+        return DeviceCapability(major=major, minor=minor)
+
     @classmethod
     def get_device_count(cls) -> int:
         """Get the number of available MUSA devices."""
         return torch.musa.device_count()
 
+    @classmethod
+    def get_device_version(cls) -> str | None:
+        """Get the MUSA runtime version."""
+        return torch.version.musa
+
     @classmethod
     def synchronize(cls) -> None:
         """Synchronize all MUSA operations."""