[HiCache]Fix hybrid model move_indices (#22940)

Co-authored-by: hzh0425 <hzh0425@apache.org>
Co-authored-by: flyerming <flyerming@163.com>

python/sglang/srt/managers/cache_controller.py

@@ -683,7 +683,9 @@ class HiCacheController:
             return
 
         op = CacheOperation.merge_ops(self.write_queue)
-        host_indices, device_indices = self.move_indices(op)
+        host_indices, device_indices = self.move_indices(
+            op.host_indices, op.device_indices
+        )
         self.write_queue.clear()
 
         start_event = device_module.Event()
@@ -723,8 +725,7 @@ class HiCacheController:
         )
         return device_indices
 
-    def move_indices(self, op: CacheOperation):
-        host_indices, device_indices = op.host_indices, op.device_indices
+    def move_indices(self, host_indices: torch.Tensor, device_indices: torch.Tensor):
         # move indices to GPU if using kernels, to host if using direct indexing
         if self.io_backend == "kernel":
             if not host_indices.is_cuda:
@@ -752,7 +753,9 @@ class HiCacheController:
 
         producer_id = self.layer_done_counter.update_producer()
         op = CacheOperation.merge_ops(self.load_queue)
-        host_indices, device_indices = self.move_indices(op)
+        host_indices, device_indices = self.move_indices(
+            op.host_indices, op.device_indices
+        )
         self.load_queue.clear()
         producer_event = self.layer_done_counter.events[producer_id]
         producer_event.start_event.record()