From 5538d3436d6415d428b37d0f34ec81ca48cdff1a Mon Sep 17 00:00:00 2001
From: Michalis Spyrou <michalis.spyrou@arm.com>
Date: Wed, 14 Nov 2018 08:10:13 +0000
Subject: COMPMID-1781 Add channel support in CLL2Normalization

Change-Id: Ibab049f09413258c99335b7da6b151530a1bd136
---
 src/core/CL/kernels/CLL2NormalizeLayerKernel.cpp | 45 ++++++++++++++++++++----
 1 file changed, 39 insertions(+), 6 deletions(-)

(limited to 'src/core/CL/kernels/CLL2NormalizeLayerKernel.cpp')

diff --git a/src/core/CL/kernels/CLL2NormalizeLayerKernel.cpp b/src/core/CL/kernels/CLL2NormalizeLayerKernel.cpp
index cfd04ef392..97dd919d08 100644
--- a/src/core/CL/kernels/CLL2NormalizeLayerKernel.cpp
+++ b/src/core/CL/kernels/CLL2NormalizeLayerKernel.cpp
@@ -109,11 +109,28 @@ void CLL2NormalizeLayerKernel::configure(const ICLTensor *input, const ICLTensor
     build_opts.emplace(("-DVEC_SIZE=" + support::cpp11::to_string(num_elems_processed_per_iteration)));
 
     // Create kernel
-    const DataLayout data_layout = input->info()->data_layout();
-    _kernel                      = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel("l2_normalize_" + lower_string(string_from_data_layout(data_layout)), build_opts));
+    std::string  kernel_name;
+    unsigned int idx = 0;
+    switch(axis)
+    {
+        case 0:
+            kernel_name = "x";
+            idx         = num_arguments_per_1D_tensor() * 3;
+            break;
+        case 1:
+            kernel_name = "y";
+            idx         = num_arguments_per_2D_tensor() * 3;
+            break;
+        case 2:
+            kernel_name = "z";
+            idx         = num_arguments_per_3D_tensor() * 3;
+            break;
+        default:
+            ARM_COMPUTE_ERROR("Not supported");
+    }
+    _kernel = static_cast<cl::Kernel>(CLKernelLibrary::get().create_kernel("l2_normalize_" + kernel_name, build_opts));
 
     // Set epsilon argument
-    unsigned int idx = data_layout == DataLayout::NCHW ? num_arguments_per_1D_tensor() * 3 : num_arguments_per_2D_tensor() * 3;
     if(input->info()->data_type() == DataType::F32)
     {
         _kernel.setArg<cl_uint>(idx, _epsilon);
@@ -145,9 +162,9 @@ void CLL2NormalizeLayerKernel::run(const Window &window, cl::CommandQueue &queue
 
     Window window_sum(window);
 
-    switch(_input->info()->data_layout())
+    switch(_axis)
     {
-        case DataLayout::NCHW:
+        case 0:
         {
             window_sum.set(Window::DimX, Window::Dimension(0, 0, 0));
             Window in_slice  = window.first_slice_window_1D();
@@ -163,7 +180,7 @@ void CLL2NormalizeLayerKernel::run(const Window &window, cl::CommandQueue &queue
             while(window.slide_window_slice_1D(in_slice) && window.slide_window_slice_1D(sum_slice));
         }
         break;
-        case DataLayout::NHWC:
+        case 1:
         {
             window_sum.set(Window::DimY, Window::Dimension(0, 0, 0));
             Window in_slice  = window.first_slice_window_2D();
@@ -179,6 +196,22 @@ void CLL2NormalizeLayerKernel::run(const Window &window, cl::CommandQueue &queue
             while(window.slide_window_slice_2D(in_slice) && window.slide_window_slice_2D(sum_slice));
         }
         break;
+        case 2:
+        {
+            window_sum.set(Window::DimZ, Window::Dimension(0, 0, 0));
+            Window in_slice  = window.first_slice_window_3D();
+            Window sum_slice = window_sum.first_slice_window_3D();
+            do
+            {
+                unsigned int idx = 0;
+                add_3D_tensor_argument(idx, _input, in_slice);
+                add_3D_tensor_argument(idx, _sum, sum_slice);
+                add_3D_tensor_argument(idx, _output, in_slice);
+                enqueue(queue, *this, in_slice);
+            }
+            while(window.slide_window_slice_3D(in_slice) && window.slide_window_slice_3D(sum_slice));
+        }
+        break;
         default:
             ARM_COMPUTE_ERROR("Not supported");
     }
-- 
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