1 files changed, 46 insertions, 0 deletions
diff --git a/tensorflow/core/common_runtime/sycl/sycl_device_context.cc b/tensorflow/core/common_runtime/sycl/sycl_device_context.cc
new file mode 100644
index 0000000000..bbf241a22f
--- /dev/null
+++ b/tensorflow/core/common_runtime/sycl/sycl_device_context.cc
@@ -0,0 +1,46 @@
+/* Copyright 2016 The TensorFlow Authors. All Rights Reserved.
+
+Licensed 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.
+==============================================================================*/
+
+#include "tensorflow/core/common_runtime/sycl/sycl_device_context.h"
+#include "tensorflow/core/common_runtime/dma_helper.h"
+
+namespace tensorflow {
+
+void SYCLDeviceContext::CopyCPUTensorToDevice(const Tensor* cpu_tensor, Device* device,
+					      Tensor* device_tensor,
+					      StatusCallback done) const {
+  const int64 total_bytes = cpu_tensor->TotalBytes();
+  if (total_bytes > 0) {
+    const void* src_ptr = DMAHelper::base(cpu_tensor);
+    void* dst_ptr = DMAHelper::base(device_tensor);
+    ::memcpy(dst_ptr, src_ptr, total_bytes);
+  }
+  done(Status::OK());
+}
+  
+void SYCLDeviceContext::CopyDeviceTensorToCPU(const Tensor* device_tensor, StringPiece edge_name,
+					      Device* device, Tensor* cpu_tensor,
+					      StatusCallback done) {
+  const int64 total_bytes = device_tensor->TotalBytes();
+  if (total_bytes > 0) {
+    const void* src_ptr = DMAHelper::base(device_tensor);
+    void* dst_ptr = DMAHelper::base(cpu_tensor);
+    ::memcpy(dst_ptr, src_ptr, total_bytes);
+  }
+  done(Status::OK());
+}
+
+}  // namespace tensorflow
+