diff --git a/example/10_conv2d_bwd_data/conv2d_bwd_data_xdl.cpp b/example/10_conv2d_bwd_data/conv2d_bwd_data_xdl.cpp
index 7f289c1938..4e79db91c4 100644
--- a/example/10_conv2d_bwd_data/conv2d_bwd_data_xdl.cpp
+++ b/example/10_conv2d_bwd_data/conv2d_bwd_data_xdl.cpp
@@ -180,6 +180,10 @@ int main(int argc, char* argv[])
     out_device_buf.ToDevice(out_n_k_ho_wo.mData.data());
     wei_device_buf.ToDevice(wei_k_c_y_x.mData.data());
 
+    // reset input to zero
+    in_n_c_hi_wi_device_result.GenerateTensorValue(GeneratorTensor_1<InDataType>{0});
+    in_device_buf.ToDevice(in_n_c_hi_wi_device_result.mData.data());
+
     // do GEMM
     auto conv     = DeviceConvBwdDataInstance{};
     auto invoker  = conv.MakeInvoker();
diff --git a/include/ck/tensor_operation/gpu/device/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk.hpp b/include/ck/tensor_operation/gpu/device/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk.hpp
index 185b96626b..27d7e0882a 100644
--- a/include/ck/tensor_operation/gpu/device/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk.hpp
+++ b/include/ck/tensor_operation/gpu/device/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk.hpp
@@ -459,6 +459,16 @@ struct DeviceConv2dBwdDataXdl_Input_N_Hi_Wi_C_Weight_K_Y_X_C_Output_N_Ho_Wo_K
             {
                 for(index_t i_xtilda = 0; i_xtilda < XTilda; ++i_xtilda)
                 {
+                    // check slice is valid
+                    const index_t Y      = filter_spatial_lengths_[0];
+                    const index_t X      = filter_spatial_lengths_[1];
+                    const auto YDotSlice = math::integer_divide_ceil(Y - i_ytilda, YTilda);
+                    const auto XDotSlice = math::integer_divide_ceil(X - i_xtilda, XTilda);
+                    if(YDotSlice * XDotSlice <= 0)
+                    {
+                        continue;
+                    }
+                    
                     const auto descs = DeviceOp::MakeABCGridDescriptor_A_K0_M_K1_B_K0_N_K1_C_M_N(
                         N,
                         K,
diff --git a/library/src/tensor_operation_instance/gpu/conv2d_bwd_data/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_bf16_instance.cpp b/library/src/tensor_operation_instance/gpu/conv2d_bwd_data/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_bf16_instance.cpp
index 72cc021643..3d7e3d3b4b 100644
--- a/library/src/tensor_operation_instance/gpu/conv2d_bwd_data/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_bf16_instance.cpp
+++ b/library/src/tensor_operation_instance/gpu/conv2d_bwd_data/device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_bf16_instance.cpp
@@ -9,7 +9,7 @@ namespace tensor_operation {
 namespace device {
 namespace device_conv2d_bwd_data_instance {
 
-using BF16 = ushort;
+using BF16 = ck::bhalf_t;
 using F32  = float;
 
 template <ck::index_t... Is>
diff --git a/profiler/include/profile_conv_bwd_data_impl.hpp b/profiler/include/profile_conv_bwd_data_impl.hpp
index 019020c2ac..6f291c4327 100644
--- a/profiler/include/profile_conv_bwd_data_impl.hpp
+++ b/profiler/include/profile_conv_bwd_data_impl.hpp
@@ -11,7 +11,7 @@
 
 using F16  = ck::half_t;
 using F32  = float;
-using BF16 = ushort;
+using BF16 = ck::bhalf_t;
 using INT8 = int8_t;
 namespace ck {
 namespace tensor_operation {
@@ -172,9 +172,9 @@ void profile_conv_bwd_data_impl(int do_verification,
         ck::tensor_operation::device::device_conv2d_bwd_data_instance::
             add_device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_f16_instances(conv_ptrs);
     }
-    else if constexpr(ck::is_same_v<ck::remove_cv_t<InDataType>, ushort> &&
-                      ck::is_same_v<ck::remove_cv_t<WeiDataType>, ushort> &&
-                      ck::is_same_v<ck::remove_cv_t<OutDataType>, ushort>)
+    else if constexpr(ck::is_same_v<ck::remove_cv_t<InDataType>, ck::bhalf_t> &&
+                      ck::is_same_v<ck::remove_cv_t<WeiDataType>, ck::bhalf_t> &&
+                      ck::is_same_v<ck::remove_cv_t<OutDataType>, ck::bhalf_t>)
     {
         ck::tensor_operation::device::device_conv2d_bwd_data_instance::
             add_device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_bf16_instances(conv_ptrs);
diff --git a/test/conv2d_bwd_data/conv2d_bwd_data.cpp b/test/conv2d_bwd_data/conv2d_bwd_data.cpp
index 0d26596396..e3caa52bef 100644
--- a/test/conv2d_bwd_data/conv2d_bwd_data.cpp
+++ b/test/conv2d_bwd_data/conv2d_bwd_data.cpp
@@ -182,8 +182,8 @@ int main(int argc, char* argv[])
 
         out_device_buf.ToDevice(out_n_k_ho_wo.mData.data());
         wei_device_buf.ToDevice(wei_k_c_y_x.mData.data());
-
-        in_n_c_hi_wi_device_result.GenerateTensorValue(GeneratorTensor_1<InDataType>{5});
+        // reset input to zero
+        in_n_c_hi_wi_device_result.GenerateTensorValue(GeneratorTensor_1<InDataType>{0});
         in_device_buf.ToDevice(in_n_c_hi_wi_device_result.mData.data());
 
         // get host result
@@ -225,9 +225,9 @@ int main(int argc, char* argv[])
             ck::tensor_operation::device::device_conv2d_bwd_data_instance::
                 add_device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_f16_instances(conv_ptrs);
         }
-        else if constexpr(ck::is_same_v<ck::remove_cv_t<InDataType>, ushort> &&
-                          ck::is_same_v<ck::remove_cv_t<WeiDataType>, ushort> &&
-                          ck::is_same_v<ck::remove_cv_t<OutDataType>, ushort>)
+        else if constexpr(ck::is_same_v<ck::remove_cv_t<InDataType>, ck::bhalf_t> &&
+                          ck::is_same_v<ck::remove_cv_t<WeiDataType>, ck::bhalf_t> &&
+                          ck::is_same_v<ck::remove_cv_t<OutDataType>, ck::bhalf_t>)
         {
             ck::tensor_operation::device::device_conv2d_bwd_data_instance::
                 add_device_conv2d_bwd_data_xdl_nhwc_kyxc_nhwk_bf16_instances(conv_ptrs);