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-rw-r--r--src/cpu/kernels/directconv2d/impl.h389
-rw-r--r--src/cpu/kernels/directconv2d/list.h77
-rw-r--r--src/cpu/kernels/directconv2d/nchw/all.cpp147
-rw-r--r--src/cpu/kernels/directconv2d/nchw/fp16.cpp84
-rw-r--r--src/cpu/kernels/directconv2d/nchw/impl.h166
-rw-r--r--src/cpu/kernels/directconv2d/nhwc/neon/fp16.cpp75
-rw-r--r--src/cpu/kernels/directconv2d/nhwc/neon/fp32.cpp40
-rw-r--r--src/cpu/kernels/directconv2d/nhwc/neon/impl.cpp270
-rw-r--r--src/cpu/kernels/directconv2d/nhwc/neon/impl.h45
-rw-r--r--src/cpu/kernels/directconv2d/nhwc/neon/qasymm8.cpp65
10 files changed, 1358 insertions, 0 deletions
diff --git a/src/cpu/kernels/directconv2d/impl.h b/src/cpu/kernels/directconv2d/impl.h
new file mode 100644
index 0000000000..d3965326cd
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/impl.h
@@ -0,0 +1,389 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ACL_SRC_CPU_KERNELS_DIRECTCONV2D_IMPL_H
+#define ACL_SRC_CPU_KERNELS_DIRECTCONV2D_IMPL_H
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/IAccessWindow.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Utils.h"
+
+#include "src/core/helpers/WindowHelpers.h"
+#include "src/core/NEON/kernels/detail/NEDirectConvolutionDetail.h"
+#include "src/core/NEON/wrapper/wrapper.h"
+
+#include <algorithm>
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+template <typename T, bool has_pads>
+void linearize_volume_nchw(const uint8_t *const in_ptr,
+ T *out_ptr,
+ bool has_bias,
+ int top_left_x,
+ int top_left_y,
+ int kernel_width,
+ int kernel_height,
+ int kernel_depth,
+ int input_w,
+ int input_h,
+ int input_stride_x,
+ int input_stride_y,
+ int input_stride_z,
+ int pad_value,
+ int dilation_x,
+ int dilation_y)
+{
+ const int kernel_size2 = kernel_width * kernel_height;
+ const int x_e = top_left_x + kernel_width * dilation_x;
+ const int y_e = top_left_y + kernel_height * dilation_y;
+
+ // Linearize volume
+ int d = 0;
+ // This for loop linearize a volume with 3 slices. This allows:
+ // 1) to reduce the iterations of the outer for loop "d"
+ // 2) to have an optimized im2col for the first convolution layer where usually we have 3 IFMs
+ for (; d <= (kernel_depth - 3); d += 3)
+ {
+ for (int y = top_left_y; y < y_e; y += dilation_y)
+ {
+ if ((y < 0 || y >= input_h) && has_pads)
+ {
+ // All the values will be the offset (will be zeros when not quantized)
+ for (int x = top_left_x; x < x_e; x += dilation_x, ++out_ptr)
+ {
+ *(out_ptr + 0 * kernel_size2) = pad_value;
+ *(out_ptr + 1 * kernel_size2) = pad_value;
+ *(out_ptr + 2 * kernel_size2) = pad_value;
+ }
+ }
+ else
+ {
+ for (int x = top_left_x; x < x_e; x += dilation_x, ++out_ptr)
+ {
+ if ((x < 0 || x >= input_w) && has_pads)
+ {
+ *(out_ptr + 0 * kernel_size2) = pad_value;
+ *(out_ptr + 1 * kernel_size2) = pad_value;
+ *(out_ptr + 2 * kernel_size2) = pad_value;
+ }
+ else
+ {
+ *(out_ptr + 0 * kernel_size2) = *(reinterpret_cast<const T *>(
+ in_ptr + ((d + 0) * input_stride_z + y * input_stride_y + x * input_stride_x)));
+ *(out_ptr + 1 * kernel_size2) = *(reinterpret_cast<const T *>(
+ in_ptr + ((d + 1) * input_stride_z + y * input_stride_y + x * input_stride_x)));
+ *(out_ptr + 2 * kernel_size2) = *(reinterpret_cast<const T *>(
+ in_ptr + ((d + 2) * input_stride_z + y * input_stride_y + x * input_stride_x)));
+ }
+ }
+ }
+ }
+ out_ptr += 2 * kernel_size2;
+ }
+
+ // Left over
+ for (; d < kernel_depth; d++)
+ {
+ for (int y = top_left_y; y < y_e; y += dilation_y)
+ {
+ if ((y < 0 || y >= input_h) && has_pads)
+ {
+ // All the values will be the offset (will be zeros when not quantized)
+ memset(static_cast<void *>(out_ptr), pad_value, kernel_width * sizeof(T));
+ out_ptr += kernel_width;
+ }
+ else
+ {
+ for (int x = top_left_x; x < x_e; x += dilation_x, ++out_ptr)
+ {
+ if ((x < 0 || x >= input_w) && has_pads)
+ {
+ *out_ptr = pad_value;
+ }
+ else
+ {
+ *out_ptr = *(reinterpret_cast<const T *>(
+ in_ptr + (d * input_stride_z + y * input_stride_y + x * input_stride_x)));
+ }
+ }
+ }
+ }
+ }
+
+ // Append 1 if the convolution layer has biases
+ if (has_bias)
+ {
+ *out_ptr = static_cast<T>(1);
+ }
+}
+
+template <typename T, bool has_pads>
+void linearize_volume_nhwc(const uint8_t *const in_ptr,
+ T *out_ptr,
+ bool has_bias,
+ int start_x,
+ int start_y,
+ int kernel_width,
+ int kernel_height,
+ int input_w,
+ int input_h,
+ int input_c,
+ int input_stride_y,
+ int input_stride_z,
+ int pad_value,
+ int dilation_x,
+ int dilation_y)
+{
+ const int end_x = start_x + kernel_width * dilation_x;
+ const int end_y = start_y + kernel_height * dilation_y;
+ const int pad_quant = kernel_width * input_c;
+ const int element_size = static_cast<int>(sizeof(T));
+ if ((start_y >= 0) && (end_y < input_h) && (start_x >= 0) && (end_x < input_w) && (dilation_x == 1) &&
+ (input_stride_y == input_c * element_size))
+ {
+ for (int y = start_y; y < end_y; y += dilation_y)
+ {
+ //optimized for no dilation and no boundary pixels
+ memcpy(out_ptr, reinterpret_cast<const T *>(in_ptr + (y * input_stride_z + start_x * input_stride_y)),
+ input_c * kernel_width * element_size);
+ out_ptr += input_c * kernel_width;
+ }
+ }
+ else
+ {
+ for (int y = start_y; y < end_y; y += dilation_y)
+ {
+ if (y < 0 || y >= input_h)
+ {
+ memset(static_cast<void *>(out_ptr), pad_value, pad_quant * element_size);
+ out_ptr += pad_quant;
+ }
+ else if (dilation_x > 1 || start_x < 0 || end_x >= input_w || input_stride_y != input_c * element_size)
+ {
+ for (int x = start_x; x < end_x; x += dilation_x)
+ {
+ if (x < 0 || x >= input_w)
+ {
+ memset(static_cast<void *>(out_ptr), pad_value, input_c * element_size);
+ out_ptr += input_c;
+ }
+ else
+ {
+ memcpy(out_ptr, reinterpret_cast<const T *>(in_ptr + (y * input_stride_z + x * input_stride_y)),
+ input_c * element_size);
+ out_ptr += input_c;
+ }
+ }
+ }
+ else
+ {
+ //optimized for no dilation and no boundary pixels
+ memcpy(out_ptr, reinterpret_cast<const T *>(in_ptr + (y * input_stride_z + start_x * input_stride_y)),
+ input_c * kernel_width * element_size);
+ out_ptr += input_c * kernel_width;
+ }
+ }
+ }
+ // Append 1 if the convolution layer has biases
+ if (has_bias)
+ {
+ *out_ptr = static_cast<T>(1);
+ }
+}
+
+template <typename T, bool has_pads>
+void linearize_volume_nhwc(const uint8_t *const in_ptr,
+ T *out_ptr,
+ bool has_bias,
+ int start_x,
+ int start_y,
+ int kernel_width,
+ int kernel_height,
+ int input_w,
+ int input_h,
+ int input_c,
+ int input_stride_y,
+ int input_stride_z,
+ int pad_value,
+ int dilation_x,
+ int dilation_y,
+ int pad_right)
+{
+ const int end_x = start_x + kernel_width * dilation_x;
+ const int end_y = start_y + kernel_height * dilation_y;
+ const int pad_quant = kernel_width * (input_c + pad_right);
+ const int element_size = static_cast<int>(sizeof(T));
+ const int channel_chunk_size = input_c * element_size;
+
+ if ((start_y >= 0) && (end_y < input_h) && (start_x >= 0) && (end_x < input_w) && (dilation_x == 1) &&
+ (input_stride_y == channel_chunk_size))
+ {
+ for (int y = start_y; y < end_y; y += dilation_y)
+ {
+ const uint8_t *offset_ptr = in_ptr + (y * input_stride_z + start_x * input_stride_y);
+ for (int e = 0; e < kernel_width; e++)
+ {
+ memcpy(out_ptr, reinterpret_cast<const T *>(offset_ptr + e * channel_chunk_size), channel_chunk_size);
+ out_ptr += input_c + pad_right;
+ }
+ }
+ }
+ else
+ {
+ for (int y = start_y; y < end_y; y += dilation_y)
+ {
+ if (y < 0 || y >= input_h)
+ {
+ memset(static_cast<void *>(out_ptr), pad_value, pad_quant * element_size);
+ out_ptr += pad_quant;
+ }
+ else if (dilation_x > 1 || start_x < 0 || end_x >= input_w || input_stride_y != channel_chunk_size)
+ {
+ for (int x = start_x; x < end_x; x += dilation_x)
+ {
+ if (x < 0 || x >= input_w)
+ {
+ memset(static_cast<void *>(out_ptr), pad_value, (input_c + pad_right) * element_size);
+ out_ptr += input_c + pad_right;
+ }
+ else
+ {
+ memcpy(out_ptr, reinterpret_cast<const T *>(in_ptr + (y * input_stride_z + x * input_stride_y)),
+ channel_chunk_size);
+ out_ptr += input_c + pad_right;
+ }
+ }
+ }
+ else
+ {
+ const uint8_t *offset_ptr = in_ptr + (y * input_stride_z + start_x * input_stride_y);
+ for (int e = 0; e < kernel_width; e++)
+ {
+ memcpy(out_ptr, reinterpret_cast<const T *>(offset_ptr + e * channel_chunk_size),
+ channel_chunk_size);
+ out_ptr += input_c + pad_right;
+ }
+ }
+ }
+ }
+ // Append 1 if the convolution layer has biases
+ if (has_bias)
+ {
+ *out_ptr = static_cast<T>(1);
+ }
+}
+
+template <typename T, bool has_pads, bool is_nchw>
+void run_im2col(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ const unsigned int width_idx = get_data_layout_dimension_index(data_layout, DataLayoutDimension::WIDTH);
+ const unsigned int height_idx = get_data_layout_dimension_index(data_layout, DataLayoutDimension::HEIGHT);
+ const unsigned int channel_idx = get_data_layout_dimension_index(data_layout, DataLayoutDimension::CHANNEL);
+
+ const int input_w = src->info()->dimension(width_idx);
+ const int input_h = src->info()->dimension(height_idx);
+ const int input_c = src->info()->dimension(channel_idx);
+ const int input_stride_x = src->info()->strides_in_bytes().x();
+ const int input_stride_y = src->info()->strides_in_bytes().y();
+ const int input_stride_z = src->info()->strides_in_bytes().z();
+ const int pad_left = conv_info.pad_left();
+ const int pad_top = conv_info.pad_top();
+ const int stride_x = conv_info.stride().first;
+ const int stride_y = conv_info.stride().second;
+ const int pad_value =
+ is_data_type_quantized(src->info()->data_type()) ? src->info()->quantization_info().uniform().offset : 0;
+
+ const auto kernel_width = kernel_dims.width;
+ const auto kernel_height = kernel_dims.height;
+
+ Window window_in_out(window);
+ // The first three dimensions of the input and output are increased by the inner loops
+ window_in_out.set(Window::DimX, Window::Dimension(0, 0, 0));
+ window_in_out.set(Window::DimY, Window::Dimension(0, 0, 0));
+ window_in_out.set(Window::DimZ, Window::Dimension(0, 0, 0));
+
+ // Create iterators
+ Iterator in(src, window_in_out);
+ Iterator out(dst, window_in_out);
+
+ execute_window_loop(
+ window,
+ [&](const Coordinates &id)
+ {
+ const int start_w = id[width_idx] * stride_x - pad_left;
+ const int start_h = id[height_idx] * stride_y - pad_top;
+
+ // Get pointers
+ const uint8_t *const input_ptr = in.ptr();
+ auto output_ptr =
+ reinterpret_cast<T *>(out.ptr() + (id[width_idx] + id[height_idx] * convolved_dims.first) *
+ dst->info()->strides_in_bytes().y());
+
+ // Linearize volume
+ if (is_nchw)
+ {
+ linearize_volume_nchw<T, has_pads>(
+ input_ptr, output_ptr, has_bias, start_w, start_h, kernel_width, kernel_height, input_c, input_w,
+ input_h, input_stride_x, input_stride_y, input_stride_z, pad_value, dilation.x(), dilation.y());
+ }
+ else
+ {
+ if (input_pad_right > 0)
+ {
+ linearize_volume_nhwc<T, has_pads>(input_ptr, output_ptr, has_bias, start_w, start_h, kernel_width,
+ kernel_height, input_w, input_h, input_c, input_stride_y,
+ input_stride_z, pad_value, dilation.x(), dilation.y(),
+ input_pad_right);
+ }
+ else
+ {
+ linearize_volume_nhwc<T, has_pads>(input_ptr, output_ptr, has_bias, start_w, start_h, kernel_width,
+ kernel_height, input_w, input_h, input_c, input_stride_y,
+ input_stride_z, pad_value, dilation.x(), dilation.y());
+ }
+ }
+ },
+ in, out);
+}
+
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
+#endif // ACL_SRC_CPU_KERNELS_DIRECTCONV2D_IMPL_H
diff --git a/src/cpu/kernels/directconv2d/list.h b/src/cpu/kernels/directconv2d/list.h
new file mode 100644
index 0000000000..e3ff46b148
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/list.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ACL_SRC_CPU_KERNELS_DIRECTCONV2D_LIST_H
+#define ACL_SRC_CPU_KERNELS_DIRECTCONV2D_LIST_H
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Utils.h"
+
+#include "src/core/common/Registrars.h"
+
+#include <algorithm>
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+#define DECLARE_DIRECT_CONV2D_KERNEL(func_name) \
+ void func_name(const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, \
+ const PadStrideInfo &conv_info)
+
+DECLARE_DIRECT_CONV2D_KERNEL(neon_fp32_nhwc_directconv2d);
+DECLARE_DIRECT_CONV2D_KERNEL(neon_fp16_nchw_directconv2d);
+DECLARE_DIRECT_CONV2D_KERNEL(neon_fp32_nchw_directconv2d);
+
+#define DECLARE_IM2COL_KERNEL(func_name) \
+ void func_name(const ITensor *src, ITensor *dst, const Window &window, DataLayout data_layout, \
+ const PadStrideInfo &conv_info, std::pair<unsigned int, unsigned int> convolved_dims, \
+ const Size2D &kernel_dims, const Size2D &dilation, uint32_t input_pad_right, bool has_bias)
+
+DECLARE_IM2COL_KERNEL(run_im2col_fp32_nchw_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_fp32_nchw_nopad);
+DECLARE_IM2COL_KERNEL(run_im2col_fp16_nchw_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_fp16_nchw_nopad);
+DECLARE_IM2COL_KERNEL(run_im2col_bf16_nchw_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_bf16_nchw_nopad);
+DECLARE_IM2COL_KERNEL(run_im2col_qasymm8_nchw_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_qasymm8_nchw_nopad);
+
+DECLARE_IM2COL_KERNEL(run_im2col_fp32_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_fp32_nopad);
+DECLARE_IM2COL_KERNEL(run_im2col_fp16_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_fp16_nopad);
+DECLARE_IM2COL_KERNEL(run_im2col_bf16_pad);
+DECLARE_IM2COL_KERNEL(run_im2col_bf16_nopad);
+
+#undef DECLARE_DIRECT_CONV2D_KERNEL
+#undef DECLARE_IM2COL_KERNEL
+
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
+#endif // ACL_SRC_CPU_KERNELS_DIRECTCONV2D_LIST_H
diff --git a/src/cpu/kernels/directconv2d/nchw/all.cpp b/src/cpu/kernels/directconv2d/nchw/all.cpp
new file mode 100644
index 0000000000..84f5eeff5a
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nchw/all.cpp
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/IAccessWindow.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Utils.h"
+
+#include "src/core/helpers/WindowHelpers.h"
+#include "src/core/NEON/kernels/detail/NEDirectConvolutionDetail.h"
+#include "src/core/NEON/wrapper/wrapper.h"
+#include "src/cpu/kernels/directconv2d/impl.h"
+#include "src/cpu/kernels/directconv2d/list.h"
+#include "src/cpu/kernels/directconv2d/nchw/impl.h"
+#include "src/cpu/kernels/directconv2d/nhwc/neon/impl.h"
+
+#include <algorithm>
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+void neon_fp32_nchw_directconv2d(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info)
+{
+ convolve_nchw<float>(window, src, weights, dst, conv_info);
+}
+
+void run_im2col_fp32_nchw_pad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<float, true, true>(src, dst, window, data_layout, conv_info, convolved_dims,
+ kernel_dims, dilation, input_pad_right, has_bias);
+}
+
+void run_im2col_fp32_nchw_nopad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<float, false, true>(src, dst, window, data_layout, conv_info, convolved_dims,
+ kernel_dims, dilation, input_pad_right, has_bias);
+}
+
+void run_im2col_qasymm8_nchw_pad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<qasymm8_t, true, true>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+}
+
+void run_im2col_qasymm8_nchw_nopad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<qasymm8_t, false, true>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+}
+#if defined(ARM_COMPUTE_ENABLE_BF16)
+void run_im2col_bf16_nchw_pad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<bfloat16, true, true>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+}
+
+void run_im2col_bf16_nchw_nopad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<bfloat16, false, true>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+}
+#endif /* defined(ARM_COMPUTE_ENABLE_BF16) */
+
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
diff --git a/src/cpu/kernels/directconv2d/nchw/fp16.cpp b/src/cpu/kernels/directconv2d/nchw/fp16.cpp
new file mode 100644
index 0000000000..a9cab42f56
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nchw/fp16.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "src/cpu/kernels/directconv2d/impl.h"
+#include "src/cpu/kernels/directconv2d/nchw/impl.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+void neon_fp16_nchw_directconv2d(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info)
+{
+ convolve_nchw<float16_t>(window, src, weights, dst, conv_info);
+}
+#endif //defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+
+void run_im2col_fp16_nchw_pad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ arm_compute::cpu::kernels::run_im2col<float16_t, true, true>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+#else // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ ARM_COMPUTE_UNUSED(src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right,
+ has_bias);
+#endif // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+}
+
+void run_im2col_fp16_nchw_nopad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ arm_compute::cpu::kernels::run_im2col<float16_t, false, true>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+#else // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ ARM_COMPUTE_UNUSED(src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right,
+ has_bias);
+#endif // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+}
+
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
diff --git a/src/cpu/kernels/directconv2d/nchw/impl.h b/src/cpu/kernels/directconv2d/nchw/impl.h
new file mode 100644
index 0000000000..6a5b175d98
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nchw/impl.h
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef ACL_SRC_CPU_KERNELS_DIRECTCONV2D_NCHW_IMPL_H
+#define ACL_SRC_CPU_KERNELS_DIRECTCONV2D_NCHW_IMPL_H
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/IAccessWindow.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Utils.h"
+
+#include "src/core/helpers/WindowHelpers.h"
+#include "src/core/NEON/kernels/detail/NEDirectConvolutionDetail.h"
+#include "src/core/NEON/wrapper/wrapper.h"
+
+#include <algorithm>
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+template <typename T>
+void convolve_nchw(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info)
+{
+ ARM_COMPUTE_UNUSED(conv_info);
+
+ // Declare useful types
+ using vtype = wrapper::traits::neon_bitvector<T, wrapper::traits::BitWidth::W128>;
+ using vector_type = typename vtype::type;
+ using tag_type = typename vtype::tag_type;
+
+ // Scalar quantities
+ const int element_size = src->info()->element_size();
+ const int input_stride_w = src->info()->strides_in_bytes()[0] / element_size;
+ const int input_stride_h = src->info()->strides_in_bytes()[1] / element_size;
+ const int input_stride_c = src->info()->strides_in_bytes()[2] / element_size;
+ const int input_stride_n = src->info()->strides_in_bytes()[3] / element_size;
+
+ const int input_dim_w = src->info()->dimension(0);
+ const int input_dim_h = src->info()->dimension(1);
+
+ const int output_stride_c = dst->info()->strides_in_bytes()[2];
+
+ const unsigned int kernel_stride_w = weights->info()->strides_in_bytes().x() / element_size;
+ const unsigned int kernel_stride_h = weights->info()->strides_in_bytes().y() / element_size;
+ const unsigned int kernel_stride_c = weights->info()->strides_in_bytes().z() / element_size;
+
+ const int kernel_dim_w = weights->info()->dimension(0);
+ const int kernel_dim_h = weights->info()->dimension(1);
+
+ const int conv_pad_top = conv_info.pad_top();
+ const int conv_pad_left = conv_info.pad_left();
+ const int conv_stride_w = std::get<0>(conv_info.stride());
+ const int conv_stride_h = std::get<1>(conv_info.stride());
+
+ // Setup input window for the output iterator
+ Window window_out = window;
+ window_out.set(Window::DimZ, Window::Dimension(0, 1, 1));
+
+ // Setup input window for the weights iterator
+ Window window_w = calculate_max_window(*weights->info(), Steps());
+ window_w.set(Window::DimX, Window::Dimension(0, 1, 1));
+ window_w.set(Window::DimY, Window::Dimension(0, 1, 1));
+ window_w.set(Window::DimZ, Window::Dimension(0, 1, 1));
+
+ Iterator out(dst, window_out);
+ Iterator wei(weights, window_w);
+
+ constexpr int num_elems_read_per_iteration = 16 / sizeof(T);
+
+ execute_window_loop(
+ window_out,
+ [&](const Coordinates &id)
+ {
+ // We are computing the theoretical starting input starting points
+ const int in_w_start_t = static_cast<int>(id.x()) * conv_stride_w - conv_pad_left;
+ const int in_h_start_t = static_cast<int>(id.y()) * conv_stride_h - conv_pad_top;
+ const int in_w_end_t = in_w_start_t + kernel_dim_w;
+ const int in_h_end_t = in_h_start_t + kernel_dim_h;
+
+ // We are computing the valid initial and ending input points by checking the borders
+ const int in_w_start = std::max(in_w_start_t, 0);
+ const int in_h_start = std::max(in_h_start_t, 0);
+ const int in_w_end = std::min(in_w_end_t, input_dim_w);
+ const int in_h_end = std::min(in_h_end_t, input_dim_h);
+
+ // We use the input points to select the valid weight points to use
+ const int wei_w_start = in_w_start - in_w_start_t;
+ const int wei_h_start = in_h_start - in_h_start_t;
+ const int wei_h_end = kernel_dim_h - (in_h_end_t - in_h_end);
+
+ const int index_c_end = weights->info()->dimension(2);
+ const T *const in_ptr_start =
+ reinterpret_cast<const T *>(src->buffer() + src->info()->offset_first_element_in_bytes()) +
+ id[3] * input_stride_n;
+ execute_window_loop(
+ window_w,
+ [&](const Coordinates &id_w)
+ {
+ const T *const weights_ptr_start = reinterpret_cast<const T *>(wei.ptr());
+ uint8_t *out_ptr = out.ptr() + id_w[3] * output_stride_c;
+ T out_temp = static_cast<T>(0);
+
+ for (int index_wei_c = 0, index_in_c = 0; index_wei_c < index_c_end; ++index_wei_c, ++index_in_c)
+ {
+ const T *const in_ptr_row_0 = in_ptr_start + index_in_c * input_stride_c;
+ const T *const weights_ptr_row_0 = weights_ptr_start + index_wei_c * kernel_stride_c;
+ for (int index_wei_h = wei_h_start, index_in_h = in_h_start; index_wei_h < wei_h_end;
+ ++index_wei_h, ++index_in_h)
+ {
+ const T *in_ptr_row = in_ptr_row_0 + index_in_h * input_stride_h;
+ const T *weights_ptr_row = weights_ptr_row_0 + index_wei_h * kernel_stride_h;
+ int index_w = in_w_start;
+ int index_wei_w = wei_w_start;
+ vector_type out_temp_vec = wrapper::vdup_n(static_cast<T>(0), tag_type());
+ for (; index_w <= ((in_w_end - num_elems_read_per_iteration));
+ index_w += num_elems_read_per_iteration, index_wei_w += num_elems_read_per_iteration)
+ {
+ const auto src_vec = wrapper::vloadq(in_ptr_row + index_w * input_stride_w);
+ const auto w_vec = wrapper::vloadq(weights_ptr_row + index_wei_w * kernel_stride_w);
+ out_temp_vec = wrapper::vmla(out_temp_vec, w_vec, src_vec);
+ }
+ out_temp += vreduce(out_temp_vec);
+ for (; index_w < in_w_end; ++index_w, ++index_wei_w)
+ {
+ const auto src_val = *(in_ptr_row + index_w * input_stride_w);
+ const auto w_val = *(weights_ptr_row + index_wei_w * kernel_stride_w);
+ out_temp += src_val * w_val;
+ }
+ }
+ }
+ *(reinterpret_cast<T *>(out_ptr)) = out_temp;
+ },
+ wei);
+ },
+ out);
+}
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
+#endif // ACL_SRC_CPU_KERNELS_DIRECTCONV2D_NCHW_IMPL_H
diff --git a/src/cpu/kernels/directconv2d/nhwc/neon/fp16.cpp b/src/cpu/kernels/directconv2d/nhwc/neon/fp16.cpp
new file mode 100644
index 0000000000..f78601544f
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nhwc/neon/fp16.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "src/cpu/kernels/directconv2d/impl.h"
+#include "src/cpu/kernels/directconv2d/nchw/impl.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+void run_im2col_fp16_pad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ arm_compute::cpu::kernels::run_im2col<float16_t, true, false>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+#else // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ ARM_COMPUTE_UNUSED(src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right,
+ has_bias);
+#endif // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+}
+
+void run_im2col_fp16_nopad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+#if defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ arm_compute::cpu::kernels::run_im2col<float16_t, false, false>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+#else // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+ ARM_COMPUTE_UNUSED(src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right,
+ has_bias);
+#endif // defined(__ARM_FEATURE_FP16_VECTOR_ARITHMETIC) && defined(ENABLE_FP16_KERNELS)
+}
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
diff --git a/src/cpu/kernels/directconv2d/nhwc/neon/fp32.cpp b/src/cpu/kernels/directconv2d/nhwc/neon/fp32.cpp
new file mode 100644
index 0000000000..17d9212248
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nhwc/neon/fp32.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "src/cpu/kernels/directconv2d/nhwc/neon/impl.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+void neon_fp32_nhwc_directconv2d(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info)
+{
+ convolve_nhwc<float>(window, src, weights, dst, conv_info);
+}
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
diff --git a/src/cpu/kernels/directconv2d/nhwc/neon/impl.cpp b/src/cpu/kernels/directconv2d/nhwc/neon/impl.cpp
new file mode 100644
index 0000000000..f235167e28
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nhwc/neon/impl.cpp
@@ -0,0 +1,270 @@
+/*
+ * Copyright (c) 2018-2022 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "src/cpu/kernels/directconv2d/nhwc/neon/impl.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/Helpers.h"
+#include "arm_compute/core/IAccessWindow.h"
+#include "arm_compute/core/ITensor.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/core/Utils.h"
+
+#include "src/core/helpers/WindowHelpers.h"
+#include "src/core/NEON/kernels/detail/NEDirectConvolutionDetail.h"
+#include "src/core/NEON/wrapper/wrapper.h"
+
+#include <algorithm>
+
+using namespace arm_compute::detail;
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+namespace
+{
+bool have_zero_x_internal_padding(ITensorInfo *src, const ITensorInfo *weights)
+{
+ return (src->padding().left == 0 && weights->padding().left == 0 && src->padding().right == 0 &&
+ weights->padding().right == 0);
+}
+} // namespace
+
+template <typename T>
+void convolve_nhwc(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info)
+{
+ // Declare useful types
+ using vtype = wrapper::traits::neon_bitvector<T, wrapper::traits::BitWidth::W128>;
+ using vector_type = typename vtype::type;
+ using tag_type = typename vtype::tag_type;
+
+ // Scalar quantities
+ const int element_size = src->info()->element_size();
+ const int input_stride_w = src->info()->strides_in_bytes().y() / element_size;
+ const int input_stride_h = src->info()->strides_in_bytes().z() / element_size;
+ const int input_stride_n = src->info()->strides_in_bytes()[3] / element_size;
+ const int input_dim_w = src->info()->dimension(1);
+ const int input_dim_h = src->info()->dimension(2);
+
+ const int output_stride_c = dst->info()->strides_in_bytes().x();
+
+ const unsigned int kernel_stride_w = weights->info()->strides_in_bytes().y() / element_size;
+ const unsigned int kernel_stride_h = weights->info()->strides_in_bytes().z() / element_size;
+ const int kernel_dim_w = weights->info()->dimension(1);
+ const int kernel_dim_h = weights->info()->dimension(2);
+
+ const int conv_pad_top = conv_info.pad_top();
+ const int conv_pad_left = conv_info.pad_left();
+ const int conv_stride_w = std::get<0>(conv_info.stride());
+ const int conv_stride_h = std::get<1>(conv_info.stride());
+
+ // Setup input window for the output iterator
+ Window window_out = window;
+ window_out.set(Window::DimX, Window::Dimension(0, 1, 1));
+
+ // Setup input window for the weights iterator
+ Window window_w = calculate_max_window(*weights->info(), Steps());
+ window_w.set(Window::DimX, Window::Dimension(0, 1, 1));
+ window_w.set(Window::DimY, Window::Dimension(0, 1, 1));
+ window_w.set(Window::DimZ, Window::Dimension(0, 1, 1));
+
+ Iterator out(dst, window_out);
+ Iterator wei(weights, window_w);
+
+ constexpr int num_elems_read_per_iteration = 16 / sizeof(T);
+
+ // nhwc optimized
+ if (have_zero_x_internal_padding(src->info(), weights->info()))
+ {
+ // This function assumes that input and weights have not padding in channel
+
+ /*
+ * This implementation parallelize the full WC plane of input and weights by
+ * treating them as series of elements. So for example, a 3x3 weights and
+ * floating point vector operations of 4 elements per time, the first 3
+ * channel elements of the first row would be taken and additionally the first
+ * element of the second row. The 9 elements in each single WC weight plane
+ * would require 2 4-element vector operations and a last single element operation.
+ *
+ * This works since when we create the input vector to multiply with the weights,
+ * the exact required elements are loaded in the same order. Therefore the
+ * multiplication works on the correct input/weight elements.
+ */
+ execute_window_loop(
+ window_out,
+ [&](const Coordinates &id)
+ {
+ /*
+ * In here we create theoretical indexes which then we validate for both
+ * inputs and weights.
+ * As a reminder, this loop take each output point in NHW, C is treated
+ * in the weights loop.
+ */
+ // We are computing the theoretical starting input starting points
+ const int in_w_start_t = static_cast<int>(id.y()) * conv_stride_w - conv_pad_left;
+ const int in_h_start_t = static_cast<int>(id.z()) * conv_stride_h - conv_pad_top;
+ const int in_w_end_t = in_w_start_t + kernel_dim_w;
+ const int in_h_end_t = in_h_start_t + kernel_dim_h;
+
+ // We are computing the valid initial and ending input points by checking the borders
+ const int in_w_start = std::max(in_w_start_t, 0);
+ const int in_h_start = std::max(in_h_start_t, 0);
+ const int in_w_end = std::min(in_w_end_t, input_dim_w);
+ const int in_h_end = std::min(in_h_end_t, input_dim_h);
+
+ // We use the input points to select the valid weight points to use
+ const int index_wc_start = (in_w_start - in_w_start_t) * kernel_stride_w;
+ const int index_h_start = in_h_start - in_h_start_t;
+ const int index_wc_end = (kernel_dim_w - (in_w_end_t - in_w_end)) * kernel_stride_w;
+ const int index_h_end = kernel_dim_h - (in_h_end_t - in_h_end);
+
+ execute_window_loop(
+ window_w,
+ [&](const Coordinates &id_w)
+ {
+ /*
+ * This is the loop in the weights, and it goes along N (the batches)
+ * As a reminder, the batches of the weights are translated into the
+ * channels of the output
+ */
+ const T *in_ptr_row =
+ reinterpret_cast<const T *>(src->buffer() + src->info()->offset_first_element_in_bytes()) +
+ id[3] * input_stride_n + in_w_start * input_stride_w + in_h_start * input_stride_h;
+ const T *weights_ptr_row =
+ reinterpret_cast<const T *>(wei.ptr()) + index_h_start * kernel_stride_h;
+ uint8_t *out_ptr = out.ptr() + id_w[3] * output_stride_c;
+
+ T out_temp = static_cast<T>(0);
+ for (int index_h = index_h_start; index_h < index_h_end;
+ ++index_h, in_ptr_row += input_stride_h, weights_ptr_row += kernel_stride_h)
+ {
+ const T *in_ptr_mover = in_ptr_row;
+ int index_wc = index_wc_start;
+ vector_type out_temp_vec = wrapper::vdup_n(static_cast<T>(0), tag_type());
+ for (; index_wc <= index_wc_end - num_elems_read_per_iteration;
+ index_wc += num_elems_read_per_iteration, in_ptr_mover += num_elems_read_per_iteration)
+ {
+ const auto src_vec = wrapper::vloadq(in_ptr_mover);
+ const auto w_vec = wrapper::vloadq(weights_ptr_row + index_wc);
+ out_temp_vec = wrapper::vmla(out_temp_vec, w_vec, src_vec);
+ }
+ out_temp += vreduce(out_temp_vec);
+ for (; index_wc < index_wc_end; ++index_wc, ++in_ptr_mover)
+ {
+ const auto src_val = *(in_ptr_mover);
+ const auto w_val = *(weights_ptr_row + index_wc);
+ out_temp += src_val * w_val;
+ }
+ }
+ *(reinterpret_cast<T *>(out_ptr)) = out_temp;
+ },
+ wei);
+ },
+ out);
+ }
+ else // nhwc non optimized
+ {
+ execute_window_loop(
+ window_out,
+ [&](const Coordinates &id)
+ {
+ // We are computing the theoretical starting input starting points
+ const int in_w_start_t = static_cast<int>(id.y()) * conv_stride_w - conv_pad_left;
+ const int in_h_start_t = static_cast<int>(id.z()) * conv_stride_h - conv_pad_top;
+ const int in_w_end_t = in_w_start_t + kernel_dim_w;
+ const int in_h_end_t = in_h_start_t + kernel_dim_h;
+
+ // We are computing the valid initial and ending input points by checking the borders
+ const int in_w_start = std::max(in_w_start_t, 0);
+ const int in_h_start = std::max(in_h_start_t, 0);
+ const int in_w_end = std::min(in_w_end_t, input_dim_w);
+ const int in_h_end = std::min(in_h_end_t, input_dim_h);
+
+ // We use the input points to select the valid weight points to use
+ const int wei_w_start = in_w_start - in_w_start_t;
+ const int wei_h_start = in_h_start - in_h_start_t;
+ const int wei_w_end = kernel_dim_w - (in_w_end_t - in_w_end);
+ const int wei_h_end = kernel_dim_h - (in_h_end_t - in_h_end);
+
+ const int index_c_end = weights->info()->dimension(0);
+ const T *const in_ptr_start =
+ reinterpret_cast<const T *>(src->buffer() + src->info()->offset_first_element_in_bytes()) +
+ id[3] * input_stride_n;
+
+ execute_window_loop(
+ window_w,
+ [&](const Coordinates &id_w)
+ {
+ const T *const weights_ptr_start = reinterpret_cast<const T *>(wei.ptr());
+ uint8_t *out_ptr = out.ptr() + id_w[3] * output_stride_c;
+
+ T out_temp = static_cast<T>(0);
+ for (int index_wei_h = wei_h_start, index_in_h = in_h_start; index_wei_h < wei_h_end;
+ ++index_wei_h, ++index_in_h)
+ {
+ const T *const in_ptr_row = in_ptr_start + index_in_h * input_stride_h;
+ const T *const weights_ptr_row = weights_ptr_start + index_wei_h * kernel_stride_h;
+ for (int index_wei_w = wei_w_start, index_in_w = in_w_start; index_wei_w < wei_w_end;
+ ++index_wei_w, ++index_in_w)
+ {
+ const T *in_ptr_mover = in_ptr_row + index_in_w * input_stride_w;
+ const T *weights_ptr_mover = weights_ptr_row + index_wei_w * kernel_stride_w;
+ int index_c = 0;
+ vector_type out_temp_vec = wrapper::vdup_n(static_cast<T>(0), tag_type());
+ for (; index_c <= index_c_end - num_elems_read_per_iteration;
+ index_c += num_elems_read_per_iteration,
+ in_ptr_mover += num_elems_read_per_iteration,
+ weights_ptr_mover += num_elems_read_per_iteration)
+ {
+ const auto src_vec = wrapper::vloadq(in_ptr_mover);
+ const auto w_vec = wrapper::vloadq(weights_ptr_mover);
+ out_temp_vec = wrapper::vmla(out_temp_vec, w_vec, src_vec);
+ }
+ out_temp += vreduce(out_temp_vec);
+ for (; index_c < index_c_end; ++index_c, ++in_ptr_mover, ++weights_ptr_mover)
+ {
+ const auto src_val = *(in_ptr_mover);
+ const auto w_val = *(weights_ptr_mover);
+ out_temp += src_val * w_val;
+ }
+ }
+ }
+ *(reinterpret_cast<T *>(out_ptr)) = out_temp;
+ },
+ wei);
+ },
+ out);
+ }
+}
+
+template void convolve_nhwc<float>(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info);
+
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
diff --git a/src/cpu/kernels/directconv2d/nhwc/neon/impl.h b/src/cpu/kernels/directconv2d/nhwc/neon/impl.h
new file mode 100644
index 0000000000..efb9ce8e2a
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nhwc/neon/impl.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef SRC_CORE_NEON_KERNELS_CONV2D_IMPL_H
+#define SRC_CORE_NEON_KERNELS_CONV2D_IMPL_H
+
+#include "arm_compute/core/ITensor.h"
+
+#include "src/core/helpers/WindowHelpers.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+template <typename T>
+void convolve_nhwc(
+ const Window &window, const ITensor *src, const ITensor *weights, ITensor *dst, const PadStrideInfo &conv_info);
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute
+
+#endif //SRC_CORE_NEON_KERNELS_CONV2D_IMPL_H
diff --git a/src/cpu/kernels/directconv2d/nhwc/neon/qasymm8.cpp b/src/cpu/kernels/directconv2d/nhwc/neon/qasymm8.cpp
new file mode 100644
index 0000000000..4c6fbec63a
--- /dev/null
+++ b/src/cpu/kernels/directconv2d/nhwc/neon/qasymm8.cpp
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "src/cpu/kernels/directconv2d/impl.h"
+#include "src/cpu/kernels/directconv2d/nhwc/neon/impl.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+namespace kernels
+{
+void run_im2col_qasymm8_pad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<qasymm8_t, true, false>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+}
+
+void run_im2col_qasymm8_nopad(const ITensor *src,
+ ITensor *dst,
+ const Window &window,
+ DataLayout data_layout,
+ const PadStrideInfo &conv_info,
+ std::pair<unsigned int, unsigned int> convolved_dims,
+ const Size2D &kernel_dims,
+ const Size2D &dilation,
+ uint32_t input_pad_right,
+ bool has_bias)
+{
+ arm_compute::cpu::kernels::run_im2col<qasymm8_t, false, false>(
+ src, dst, window, data_layout, conv_info, convolved_dims, kernel_dims, dilation, input_pad_right, has_bias);
+}
+} // namespace kernels
+} // namespace cpu
+} // namespace arm_compute