| /* |
| * Copyright (c) 2021 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 "helpers.h" |
| #include "helpers_asymm.h" |
| |
| /** This kernel performs a direct convolution to convolve the low three dimensions. |
| * |
| * @note The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float |
| * @note The data size must be passed at compile time using -DDATA_SIZE e.g. -DDATA_SIZE=32 |
| * @note The convolution stride x must be passed at compile time using -DSTRIDE_X e.g. -DSTRIDE_X=1 |
| * @note The third dimensions of the weights tensors must be passed at compile time using -DWEIGHTS_DEPTH |
| * @note In case biases will be added to the convolution -DHAS_BIAS has to be passed to append the final matrix with 1 in each row. |
| * @note The output quantization multiplier must be passed at compile time using -DOUTPUT_MULTIPLIER e.g. -DOUTPUT_MULTIPLIER=1234 |
| * @note The output quantization shift must be passed at compile time using -DOUTPUT_SHIFT e.g. -DOUTPUT_SHIFT=4 |
| * @note The input offset quantization parameter must be passed at compile time using -DINPUT_OFFSET e.g. -DINPUT_OFFSET=3 |
| * @note The weights offset quantization parameter must be passed at compile time using -DWEIGHTS_OFFSET e.g. -DWEIGHTS_OFFSET=3 |
| * |
| * @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 Y processed per workitem(in bytes) |
| * @param[in] src_stride_z Stride of the source tensor in Z dimension (in bytes) |
| * @param[in] src_step_z src_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] src_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 Z processed per workitem(in bytes) |
| * @param[in] dst_stride_z Stride of the destination tensor in Z dimension (in bytes) |
| * @param[in] dst_step_z dst_stride_z * number of elements along Z 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] weights_ptr Pointer to the weights tensor. Supported data types: same as @p src_ptr |
| * @param[in] weights_stride_x Stride of the weights tensor in X dimension (in bytes) |
| * @param[in] weights_step_x weights_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] weights_stride_y Stride of the weights tensor in Y dimension (in bytes) |
| * @param[in] weights_step_y weights_stride_y * number of elements along y processed per workitem(in bytes) |
| * @param[in] weights_stride_z Stride of the weights tensor in Z dimension (in bytes) |
| * @param[in] weights_step_z weights_stride_z * number of elements along Z processed per workitem(in bytes) |
| * @param[in] weights_offset_first_element_in_bytes The offset of the first element in the weights tensor |
| * @param[in] biases_ptr Pointer to the biases tensor. Same as @p src_ptr |
| * @param[in] biases_stride_x Stride of the biases tensor in X dimension (in bytes) |
| * @param[in] biases_step_x biases_stride_x * number of elements along X processed per workitem(in bytes) |
| * @param[in] biases_offset_first_element_in_bytes The offset of the first element in the biases tensor |
| * @param[in] weights_stride_w Stride of the weights tensor in the 4th dimension |
| */ |
| __kernel void direct_convolution_nchw( |
| TENSOR3D_DECLARATION(src), |
| TENSOR3D_DECLARATION(dst), |
| TENSOR3D_DECLARATION(weights), |
| #ifdef HAS_BIAS |
| VECTOR_DECLARATION(biases), |
| #endif /* defined(HAS_BIAS) */ |
| unsigned int weights_stride_w) |
| { |
| const int id0 = get_global_id(0); |
| const int id1 = get_global_id(1); |
| const int id2 = get_global_id(2); |
| |
| const int x_coords = (id0 * STRIDE_X) - PAD_LEFT; |
| const int y_coords = (id1 * STRIDE_Y) - PAD_TOP; |
| |
| const int x_offs = max((int)(get_global_id(0) * VEC_SIZE - (VEC_SIZE - VEC_SIZE_LEFTOVER) % VEC_SIZE), 0) * sizeof(DATA_TYPE); |
| |
| __global uchar *src_addr = (__global uchar *)(src_ptr + src_offset_first_element_in_bytes); |
| __global uchar *weights_addr = (__global uchar *)(weights_ptr + weights_offset_first_element_in_bytes + id2 * weights_stride_w); |
| __global uchar *dst_addr = (__global uchar *)dst_ptr + dst_offset_first_element_in_bytes + x_offs + id1 * dst_stride_y + id2 * dst_stride_z; |
| |
| #ifdef IS_QUANTIZED |
| int acc_value = 0; |
| #else /* IS_QUANTIZED */ |
| DATA_TYPE acc_value = 0; |
| #endif /* IS_QUANTIZED */ |
| for(volatile int d = 0; d < WEIGHTS_DEPTH; ++d) |
| { |
| for(int y = 0; y < WEI_HEIGHT; ++y) |
| { |
| for(int x = 0; x < WEI_WIDTH; ++x) |
| { |
| const int idx_x = (x_coords + x); |
| const int idx_y = (y_coords + y); |
| if((idx_x >= 0 && idx_x < SRC_WIDTH) && (idx_y >= 0 && idx_y < SRC_HEIGHT)) |
| { |
| const int weight_offset = x + (WEI_HEIGHT * y); |
| const int input_offset = idx_x + SRC_WIDTH * idx_y; |
| #ifdef IS_QUANTIZED |
| int weight = convert_int(*((__global DATA_TYPE *)weights_addr + weight_offset)); |
| int input = convert_int(*((__global DATA_TYPE *)src_addr + input_offset)); |
| acc_value += (input + INPUT_OFFSET) * (weight + WEIGHTS_OFFSET); |
| #else /* IS_QUANTIZED */ |
| DATA_TYPE weight = *((__global DATA_TYPE *)weights_addr + weight_offset); |
| DATA_TYPE input = *((__global DATA_TYPE *)src_addr + input_offset); |
| acc_value += input * weight; |
| #endif /* IS_QUANTIZED */ |
| } |
| } |
| } |
| src_addr += src_stride_z; |
| weights_addr += weights_stride_z; |
| } |
| |
| #ifdef HAS_BIAS |
| |
| Vector biases = CONVERT_TO_VECTOR_STRUCT_NO_STEP(biases); |
| #ifdef IS_QUANTIZED |
| int bias = *((__global int *)(vector_offset(&biases, id2))); |
| #else /* IS_QUANTIZED */ |
| DATA_TYPE bias = *((__global DATA_TYPE *)(vector_offset(&biases, id2))); |
| #endif /* IS_QUANTIZED */ |
| acc_value += bias; |
| |
| #endif /* defined(HAS_BIAS) */ |
| |
| #ifdef IS_QUANTIZED |
| |
| #if OUTPUT_SHIFT < 0 |
| acc_value = ASYMM_MULT_BY_QUANT_MULTIPLIER_GREATER_THAN_ONE(acc_value, OUTPUT_MULTIPLIER, OUTPUT_SHIFT, 1); |
| #else // OUTPUT_SHIFT < 0 |
| acc_value = ASYMM_MULT_BY_QUANT_MULTIPLIER_LESS_THAN_ONE(acc_value, OUTPUT_MULTIPLIER, OUTPUT_SHIFT, 1); |
| #endif // OUTPUT_SHIFT < 0 |
| acc_value = acc_value + OUTPUT_OFFSET; |
| #endif /* IS_QUANTIZED */ |
| |
| *(__global DATA_TYPE *)dst_addr = CONVERT_SAT(acc_value, DATA_TYPE); |
| } |
