COMPMID-2077 Optimise CLL2NormalizeLayerKernel

Change-Id: If3866d90f84d62578b7e26f524fa4d7757a5970c
Signed-off-by: Usama Arif <usama.arif@arm.com>
Reviewed-on: https://review.mlplatform.org/c/906
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
diff --git a/src/core/CL/cl_kernels/l2_normalize.cl b/src/core/CL/cl_kernels/l2_normalize.cl
index 5f66efb..70b8b36 100644
--- a/src/core/CL/cl_kernels/l2_normalize.cl
+++ b/src/core/CL/cl_kernels/l2_normalize.cl
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016-2018 ARM Limited.
+ * Copyright (c) 2016-2019 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -31,26 +31,32 @@
  * @param[in]  src_ptr                           Pointer to the source tensor. Supported data types: F16/F32
  * @param[in]  src_stride_x                      Stride of the source tensor in X dimension (in bytes)
  * @param[in]  src_step_x                        src_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in]  src_stride_y                      Stride of the source tensor in Y dimension (in bytes)
+ * @param[in]  src_step_y                        src_stride_y * number of elements along X processed per workitem(in bytes)
  * @param[in]  src_offset_first_element_in_bytes The offset of the first element in the source tensor
  * @param[in]  sum_ptr                           Pointer to the source tensor. Supported data types: F16/F32
  * @param[in]  sum_stride_x                      Stride of the source tensor in X dimension (in bytes)
  * @param[in]  sum_step_x                        sum_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in]  sum_stride_y                      Stride of the source tensor in Y dimension (in bytes)
+ * @param[in]  sum_step_y                        sum_stride_y * number of elements along Y processed per workitem(in bytes)
  * @param[in]  sum_offset_first_element_in_bytes The offset of the first element in the source tensor
  * @param[out] dst_ptr                           Pointer to the destination tensor. Supported data types: same as @p src_ptr
  * @param[in]  dst_stride_x                      Stride of the destination tensor in X dimension (in bytes)
  * @param[in]  dst_step_x                        dst_stride_x * number of elements along X processed per workitem(in bytes)
+ * @param[in]  dst_stride_y                      Stride of the destination tensor in Y dimension (in bytes)
+ * @param[in]  dst_step_y                        dst_stride_y * number of elements along Y processed per workitem(in bytes)
  * @param[in]  dst_offset_first_element_in_bytes The offset of the first element in the destination tensor
  * @param[in]  epsilon                           Epsilon value
  */
 __kernel void l2_normalize_x(
-    VECTOR_DECLARATION(src),
-    VECTOR_DECLARATION(sum),
-    VECTOR_DECLARATION(dst),
+    IMAGE_DECLARATION(src),
+    IMAGE_DECLARATION(sum),
+    IMAGE_DECLARATION(dst),
     DATA_TYPE epsilon)
 {
-    Vector src = CONVERT_TO_VECTOR_STRUCT(src);
-    Vector sum = CONVERT_TO_VECTOR_STRUCT(sum);
-    Vector dst = CONVERT_TO_VECTOR_STRUCT(dst);
+    Image src = CONVERT_TO_IMAGE_STRUCT(src);
+    Image sum = CONVERT_TO_IMAGE_STRUCT(sum);
+    Image dst = CONVERT_TO_IMAGE_STRUCT(dst);
 
     VEC_DATA_TYPE(DATA_TYPE, 16)
     in = vload16(0, (__global DATA_TYPE *)src.ptr);