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| /* | |
| * SPDX-FileCopyrightText: Copyright 2010-2022 Arm Limited and/or its affiliates <open-source-office@arm.com> | |
| * | |
| * SPDX-License-Identifier: Apache-2.0 | |
| * | |
| * 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 | |
| * | |
| * 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. | |
| */ | |
| /* ---------------------------------------------------------------------- | |
| * Project: CMSIS NN Library | |
| * Title: arm_depthwise_conv_s8.c | |
| * Description: s8 version of depthwise convolution. | |
| * | |
| * $Date: 29 July 2022 | |
| * $Revision: V.3.0.3 | |
| * | |
| * Target Processor: Cortex-M CPUs | |
| * | |
| * -------------------------------------------------------------------- */ | |
| /** | |
| * @ingroup groupNN | |
| */ | |
| /** | |
| * @addtogroup NNConv | |
| * @{ | |
| */ | |
| __attribute__((optimize("no-unroll-loops"))) | |
| static void | |
| depthwise_conv_s8_mult_4(const int8_t *input, | |
| const int32_t input_x, | |
| const int32_t input_y, | |
| const int32_t input_ch, | |
| const int8_t *kernel, | |
| const int32_t output_ch, | |
| const int32_t ch_mult, | |
| const int32_t kernel_x, | |
| const int32_t kernel_y, | |
| const int32_t pad_x, | |
| const int32_t pad_y, | |
| const int32_t stride_x, | |
| const int32_t stride_y, | |
| const int32_t *bias, | |
| int8_t *output, | |
| const int32_t *output_shift, | |
| const int32_t *output_mult, | |
| const int32_t output_x, | |
| const int32_t output_y, | |
| const int32_t output_offset, | |
| const int32_t input_offset, | |
| const int32_t output_activation_min, | |
| const int32_t output_activation_max) | |
| { | |
| const int32_t *bias_base = bias; | |
| const int32_t *mult_base = output_mult; | |
| const int32_t *shift_base = output_shift; | |
| const int8_t *kernel_base = kernel; | |
| for (int32_t in_h = -pad_y, out_h = 0; out_h < output_y; in_h += stride_y, ++out_h) | |
| { | |
| for (int32_t in_w = -pad_x, out_w = 0, ker_h_start = MAX(0, -in_h); out_w < output_x; in_w += stride_x, ++out_w) | |
| { | |
| bias = bias_base; | |
| output_mult = mult_base; | |
| output_shift = shift_base; | |
| for (int32_t in_ch = 0, out_ch = 0, ker_w_start = MAX(0, -in_w); out_ch < output_ch; | |
| ++in_ch, out_ch += ch_mult) | |
| { | |
| for (int mult_tile = 0; mult_tile < ch_mult; mult_tile += 4) | |
| { | |
| int32_t out_buff[4] = {0, 0, 0, 0}; | |
| if (bias) | |
| { | |
| out_buff[0] = *bias++; | |
| out_buff[1] = *bias++; | |
| out_buff[2] = *bias++; | |
| out_buff[3] = *bias++; | |
| } | |
| for (int32_t ker_h = ker_h_start; ker_h < MIN(kernel_y, input_y - in_h); ++ker_h) | |
| { | |
| int32_t ker_idx = ker_h * (output_ch * kernel_x) + ker_w_start * output_ch + out_ch; | |
| kernel = kernel_base + mult_tile + ker_idx; | |
| int32_t in_idx = (in_h + ker_h) * (input_ch * input_x) + in_w * input_ch + in_ch; | |
| for (int32_t ker_w = ker_w_start; ker_w < MIN(kernel_x, input_x - in_w); | |
| ++ker_w, kernel += output_ch) | |
| { | |
| int32_t in_val = input[in_idx + ker_w * input_ch] + input_offset; | |
| out_buff[0] += in_val * kernel[0]; | |
| out_buff[1] += in_val * kernel[1]; | |
| out_buff[2] += in_val * kernel[2]; | |
| out_buff[3] += in_val * kernel[3]; | |
| } | |
| } | |
| int32x4_t res = vldrwq_s32(out_buff); | |
| res = arm_requantize_mve_32x4(res, vldrwq_s32(output_mult), vldrwq_s32(output_shift)); | |
| output_mult += 4; | |
| output_shift += 4; | |
| res = vaddq_n_s32(res, output_offset); | |
| res = vmaxq_s32(res, vdupq_n_s32(output_activation_min)); | |
| res = vminq_s32(res, vdupq_n_s32(output_activation_max)); | |
| vstrbq_s32(output, res); | |
| output += 4; | |
| out_buff[0] = arm_nn_requantize(out_buff[0], *output_mult++, *output_shift++); | |
| out_buff[1] = arm_nn_requantize(out_buff[1], *output_mult++, *output_shift++); | |
| out_buff[2] = arm_nn_requantize(out_buff[2], *output_mult++, *output_shift++); | |
| out_buff[3] = arm_nn_requantize(out_buff[3], *output_mult++, *output_shift++); | |
| out_buff[0] += output_offset; | |
| out_buff[1] += output_offset; | |
| out_buff[2] += output_offset; | |
| out_buff[3] += output_offset; | |
| out_buff[0] = MIN(MAX(out_buff[0], output_activation_min), output_activation_max); | |
| out_buff[1] = MIN(MAX(out_buff[1], output_activation_min), output_activation_max); | |
| out_buff[2] = MIN(MAX(out_buff[2], output_activation_min), output_activation_max); | |
| out_buff[3] = MIN(MAX(out_buff[3], output_activation_min), output_activation_max); | |
| *output++ = (int8_t)out_buff[0]; | |
| *output++ = (int8_t)out_buff[1]; | |
| *output++ = (int8_t)out_buff[2]; | |
| *output++ = (int8_t)out_buff[3]; | |
| } | |
| } | |
| } | |
| } | |
| } | |
| static void depthwise_conv_s8_generic(const q7_t *input, | |
| const uint16_t input_batches, | |
| const uint16_t input_x, | |
| const uint16_t input_y, | |
| const uint16_t input_ch, | |
| const q7_t *kernel, | |
| const uint16_t output_ch, | |
| const uint16_t ch_mult, | |
| const uint16_t kernel_x, | |
| const uint16_t kernel_y, | |
| const uint16_t pad_x, | |
| const uint16_t pad_y, | |
| const uint16_t stride_x, | |
| const uint16_t stride_y, | |
| const int32_t *bias, | |
| q7_t *output, | |
| const int32_t *output_shift, | |
| const int32_t *output_mult, | |
| const uint16_t output_x, | |
| const uint16_t output_y, | |
| const int32_t output_offset, | |
| const int32_t input_offset, | |
| const int32_t output_activation_min, | |
| const int32_t output_activation_max, | |
| const uint16_t dilation_x, | |
| const uint16_t dilation_y) | |
| { | |
| (void)output_ch; | |
| int i_out = 0; | |
| int i_batch; | |
| for (i_batch = 0; i_batch < input_batches; i_batch++) | |
| { | |
| for (int i_out_y = 0; i_out_y < output_y; i_out_y++) | |
| { | |
| const int16_t base_idx_y = (i_out_y * stride_y) - pad_y; | |
| for (int i_out_x = 0; i_out_x < output_x; i_out_x++) | |
| { | |
| const int16_t base_idx_x = (i_out_x * stride_x) - pad_x; | |
| for (int i_input_ch = 0; i_input_ch < input_ch; i_input_ch++) | |
| { | |
| for (int i_ch_mult = 0; i_ch_mult < ch_mult; i_ch_mult++) | |
| { | |
| const int idx_out_ch = i_ch_mult + i_input_ch * ch_mult; | |
| int32_t acc_0 = 0; | |
| int ker_y_start; | |
| int ker_x_start; | |
| int ker_y_end; | |
| int ker_x_end; | |
| if (dilation_x > 1) | |
| { | |
| const int32_t start_x_max = (-base_idx_x + dilation_x - 1) / dilation_x; | |
| ker_x_start = MAX(0, start_x_max); | |
| const int32_t end_min_x = (input_x - base_idx_x + dilation_x - 1) / dilation_x; | |
| ker_x_end = MIN(kernel_x, end_min_x); | |
| } | |
| else | |
| { | |
| ker_x_start = MAX(0, -base_idx_x); | |
| ker_x_end = MIN(kernel_x, input_x - base_idx_x); | |
| } | |
| if (dilation_y > 1) | |
| { | |
| const int32_t start_y_max = (-base_idx_y + dilation_y - 1) / dilation_y; | |
| ker_y_start = MAX(0, start_y_max); | |
| const int32_t end_min_y = (input_y - base_idx_y + dilation_y - 1) / dilation_y; | |
| ker_y_end = MIN(kernel_y, end_min_y); | |
| } | |
| else | |
| { | |
| ker_y_start = MAX(0, -base_idx_y); | |
| ker_y_end = MIN(kernel_y, input_y - base_idx_y); | |
| } | |
| if (bias) | |
| { | |
| acc_0 = bias[idx_out_ch]; | |
| } | |
| for (int i_ker_y = ker_y_start; i_ker_y < ker_y_end; i_ker_y++) | |
| { | |
| const int32_t idx_y = base_idx_y + dilation_y * i_ker_y; | |
| for (int i_ker_x = ker_x_start; i_ker_x < ker_x_end; i_ker_x++) | |
| { | |
| const int32_t idx_x = base_idx_x + dilation_x * i_ker_x; | |
| int32_t idx_0 = (idx_y * input_x + idx_x) * input_ch + i_input_ch; | |
| int32_t ker_idx_0 = (i_ker_y * kernel_x + i_ker_x) * (input_ch * ch_mult) + idx_out_ch; | |
| acc_0 += (input[idx_0] + input_offset) * kernel[ker_idx_0]; | |
| } | |
| } | |
| /* Requantize and clamp output to provided range */ | |
| acc_0 = arm_nn_requantize(acc_0, output_mult[idx_out_ch], output_shift[idx_out_ch]); | |
| acc_0 += output_offset; | |
| acc_0 = MAX(acc_0, output_activation_min); | |
| acc_0 = MIN(acc_0, output_activation_max); | |
| output[i_out++] = acc_0; | |
| } | |
| } | |
| } | |
| } | |
| /* Advance to the next batch */ | |
| input += (input_x * input_y * input_ch); | |
| } | |
| } | |
| /* | |
| * Basic s8 depthwise convolution function. | |
| * | |
| * Refer header file for details. | |
| * Optimization using DSP extension is not available for the generic case where channel multiplier is > 1. | |
| * | |
| */ | |
| arm_cmsis_nn_status arm_depthwise_conv_s8(const cmsis_nn_context *ctx, | |
| const cmsis_nn_dw_conv_params *dw_conv_params, | |
| const cmsis_nn_per_channel_quant_params *quant_params, | |
| const cmsis_nn_dims *input_dims, | |
| const q7_t *input, | |
| const cmsis_nn_dims *filter_dims, | |
| const q7_t *kernel, | |
| const cmsis_nn_dims *bias_dims, | |
| const int32_t *bias, | |
| const cmsis_nn_dims *output_dims, | |
| q7_t *output) | |
| { | |
| const uint16_t dilation_x = dw_conv_params->dilation.w; | |
| const uint16_t dilation_y = dw_conv_params->dilation.h; | |
| (void)bias_dims; | |
| (void)ctx; | |
| if (dw_conv_params->ch_mult % 4 == 0 && input_dims->n == 1 && dw_conv_params->dilation.w == 1 && | |
| dw_conv_params->dilation.h == 1) | |
| { | |
| depthwise_conv_s8_mult_4(input, | |
| input_dims->w, | |
| input_dims->h, | |
| input_dims->c, | |
| kernel, | |
| output_dims->c, | |
| dw_conv_params->ch_mult, | |
| filter_dims->w, | |
| filter_dims->h, | |
| dw_conv_params->padding.w, | |
| dw_conv_params->padding.h, | |
| dw_conv_params->stride.w, | |
| dw_conv_params->stride.h, | |
| bias, | |
| output, | |
| quant_params->shift, | |
| quant_params->multiplier, | |
| output_dims->w, | |
| output_dims->h, | |
| dw_conv_params->output_offset, | |
| dw_conv_params->input_offset, | |
| dw_conv_params->activation.min, | |
| dw_conv_params->activation.max); | |
| } | |
| else | |
| { | |
| depthwise_conv_s8_generic(input, | |
| input_dims->n, | |
| input_dims->w, | |
| input_dims->h, | |
| input_dims->c, | |
| kernel, | |
| output_dims->c, | |
| dw_conv_params->ch_mult, | |
| filter_dims->w, | |
| filter_dims->h, | |
| dw_conv_params->padding.w, | |
| dw_conv_params->padding.h, | |
| dw_conv_params->stride.w, | |
| dw_conv_params->stride.h, | |
| bias, | |
| output, | |
| quant_params->shift, | |
| quant_params->multiplier, | |
| output_dims->w, | |
| output_dims->h, | |
| dw_conv_params->output_offset, | |
| dw_conv_params->input_offset, | |
| dw_conv_params->activation.min, | |
| dw_conv_params->activation.max, | |
| dilation_x, | |
| dilation_y); | |
| } | |
| /* Return to application */ | |
| return ARM_CMSIS_NN_SUCCESS; | |
| } | |
| /** | |
| * @} end of NNConv group | |
| */ | |