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Diffstat (limited to 'src/core/NEON/kernels/convolution/winograd/weight_transforms/arm_fp32_2x2_3x3.cpp')
| -rw-r--r-- | src/core/NEON/kernels/convolution/winograd/weight_transforms/arm_fp32_2x2_3x3.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/convolution/winograd/weight_transforms/arm_fp32_2x2_3x3.cpp b/src/core/NEON/kernels/convolution/winograd/weight_transforms/arm_fp32_2x2_3x3.cpp new file mode 100644 index 0000000000..ebfe03e6d9 --- /dev/null +++ b/src/core/NEON/kernels/convolution/winograd/weight_transforms/arm_fp32_2x2_3x3.cpp @@ -0,0 +1,200 @@ +/* + * Copyright (c) 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 <cstddef> +#include <arm_neon.h> + +namespace arm_conv { +namespace winograd { +namespace weight_transform { + +void arm_fp32_2x2_3x3( + unsigned int n_channels, + const float *inptr, size_t ld_weight_row, size_t ld_weight_col, + float *outptr, size_t matrix_stride +) +{ + constexpr auto inner_tile_i = 4u; + constexpr auto inner_tile_j = 4u; + +#ifdef __aarch64__ + // For each output channel + for (; n_channels >= 4u; n_channels -= 4) + { + // Matrices used and computed in this kernel + float32x4_t w[3][3], Ww[inner_tile_i][3], V[inner_tile_i][inner_tile_j]; + + // Read weights + for (int i = 0; i < 3; i++) + { + for (int j = 0; j < 3; j++) + { + w[i][j] = vld1q_f32(inptr + i*ld_weight_row + j*ld_weight_col); + } + } + + // Compute the matrix W w + for (int j = 0; j < 3; j++) + { + Ww[0][j] = w[0][j]; + + // Ww[1][j] = 0.5*(w[0][j] + w[1][j] + w[2][j]); + Ww[1][j] = vmulq_n_f32(vaddq_f32(vaddq_f32(w[0][j], w[1][j]), w[2][j]), 0.5f); + + // Ww[2][j] = 0.5*(w[0][j] - w[1][j] + w[2][j]); + Ww[2][j] = vmulq_n_f32(vaddq_f32(vsubq_f32(w[0][j], w[1][j]), w[2][j]), 0.5f); + + Ww[3][j] = w[2][j]; + } + + // Compute V = W w WT + for (auto i = 0u; i < inner_tile_i; i++) + { + V[i][0] = Ww[i][0]; + + // V[i][1] = 0.5*(Ww[i][0] + Ww[i][1] + Ww[i][2]); + V[i][1] = vmulq_n_f32(vaddq_f32(vaddq_f32(Ww[i][0], Ww[i][1]), Ww[i][2]), 0.5f); + + // V[i][2] = 0.5*(Ww[i][0] - Ww[i][1] + Ww[i][2]); + V[i][2] = vmulq_n_f32(vaddq_f32(vsubq_f32(Ww[i][0], Ww[i][1]), Ww[i][2]), 0.5f); + + V[i][3] = Ww[i][2]; + } + + // Store the transformed weights + for (auto i = 0u, m = 0u; i < inner_tile_i; i++) + { + for (auto j = 0u; j < inner_tile_j; j++, m++) + { + vst1q_f32(outptr + m*matrix_stride, V[i][j]); + } + } + + inptr += 4; + outptr += 4; + } +#endif // __aarch64__ + for (; n_channels >= 2u; n_channels -= 2) + { + // Matrices used and computed in this kernel + float32x2_t w[3][3], Ww[inner_tile_i][3], V[inner_tile_i][inner_tile_j]; + + // Read weights + for (int i = 0; i < 3; i++) + { + for (int j = 0; j < 3; j++) + { + w[i][j] = vld1_f32(inptr + i*ld_weight_row + j*ld_weight_col); + } + } + + // Compute the matrix W w + for (int j = 0; j < 3; j++) + { + Ww[0][j] = w[0][j]; + + // Ww[1][j] = 0.5*(w[0][j] + w[1][j] + w[2][j]); + Ww[1][j] = vmul_n_f32(vadd_f32(vadd_f32(w[0][j], w[1][j]), w[2][j]), 0.5f); + + // Ww[2][j] = 0.5*(w[0][j] - w[1][j] + w[2][j]); + Ww[2][j] = vmul_n_f32(vadd_f32(vsub_f32(w[0][j], w[1][j]), w[2][j]), 0.5f); + + Ww[3][j] = w[2][j]; + } + + // Compute V = W w WT + for (auto i = 0u; i < inner_tile_i; i++) + { + V[i][0] = Ww[i][0]; + + // V[i][1] = 0.5*(Ww[i][0] + Ww[i][1] + Ww[i][2]); + V[i][1] = vmul_n_f32(vadd_f32(vadd_f32(Ww[i][0], Ww[i][1]), Ww[i][2]), 0.5f); + + // V[i][2] = 0.5*(Ww[i][0] - Ww[i][1] + Ww[i][2]); + V[i][2] = vmul_n_f32(vadd_f32(vsub_f32(Ww[i][0], Ww[i][1]), Ww[i][2]), 0.5f); + + V[i][3] = Ww[i][2]; + } + + // Store the transformed weights + for (auto i = 0u, m = 0u; i < inner_tile_i; i++) + { + for (auto j = 0u; j < inner_tile_j; j++, m++) + { + vst1_f32(outptr + m*matrix_stride, V[i][j]); + } + } + + inptr += 2; + outptr += 2; + } + for (; n_channels; n_channels--) + { + // Matrices used and computed in this kernel + float w[3][3], Ww[inner_tile_i][3], V[inner_tile_i][inner_tile_j]; + + // Read weights + for (int i = 0; i < 3; i++) + { + for (int j = 0; j < 3; j++) + { + w[i][j] = *(inptr + i*ld_weight_row + j*ld_weight_col); + } + } + + // Compute the matrix W w + for (int j = 0; j < 3; j++) + { + Ww[0][j] = w[0][j]; + Ww[1][j] = 0.5*(w[0][j] + w[1][j] + w[2][j]); + Ww[2][j] = 0.5*(w[0][j] - w[1][j] + w[2][j]); + Ww[3][j] = w[2][j]; + } + + // Compute V = W w WT + for (auto i = 0u; i < inner_tile_i; i++) + { + V[i][0] = Ww[i][0]; + V[i][1] = 0.5*(Ww[i][0] + Ww[i][1] + Ww[i][2]); + V[i][2] = 0.5*(Ww[i][0] - Ww[i][1] + Ww[i][2]); + V[i][3] = Ww[i][2]; + } + + // Store the transformed weights + for (auto i = 0u, m = 0u; i < inner_tile_i; i++) + { + for (auto j = 0u; j < inner_tile_j; j++, m++) + { + *(outptr + m*matrix_stride) = V[i][j]; + } + } + + inptr++; + outptr++; + } +} + +} // namespace weight_transform +} // namespace winograd +} // namespace arm_conv |