diff options
Diffstat (limited to 'Drivers/CMSIS/NN/Source/ConvolutionFunctions/arm_convolve_HWC_q7_fast_nonsquare.c')
| -rw-r--r-- | Drivers/CMSIS/NN/Source/ConvolutionFunctions/arm_convolve_HWC_q7_fast_nonsquare.c | 379 |
1 files changed, 379 insertions, 0 deletions
diff --git a/Drivers/CMSIS/NN/Source/ConvolutionFunctions/arm_convolve_HWC_q7_fast_nonsquare.c b/Drivers/CMSIS/NN/Source/ConvolutionFunctions/arm_convolve_HWC_q7_fast_nonsquare.c new file mode 100644 index 0000000..6dc6f0b --- /dev/null +++ b/Drivers/CMSIS/NN/Source/ConvolutionFunctions/arm_convolve_HWC_q7_fast_nonsquare.c @@ -0,0 +1,379 @@ +/*
+ * Copyright (C) 2010-2018 Arm Limited or its affiliates. All rights reserved.
+ *
+ * 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_convolve_HWC_q7_fast_nonsquare.c
+ * Description: Fast Q7 version of convolution (non-sqaure shape)
+ *
+ * $Date: 17. January 2018
+ * $Revision: V.1.0.0
+ *
+ * Target Processor: Cortex-M cores
+ *
+ * -------------------------------------------------------------------- */
+
+#include "arm_math.h"
+#include "arm_nnfunctions.h"
+
+/**
+ * @ingroup groupNN
+ */
+
+/**
+ * @addtogroup NNConv
+ * @{
+ */
+
+/**
+ * @brief Fast Q7 convolution function (non-sqaure shape)
+ * @param[in] Im_in pointer to input tensor
+ * @param[in] dim_im_in_x input tensor dimention x
+ * @param[in] dim_im_in_y input tensor dimention y
+ * @param[in] ch_im_in number of input tensor channels
+ * @param[in] wt pointer to kernel weights
+ * @param[in] ch_im_out number of filters, i.e., output tensor channels
+ * @param[in] dim_kernel_x filter kernel size x
+ * @param[in] dim_kernel_y filter kernel size y
+ * @param[in] padding_x padding size x
+ * @param[in] padding_y padding size y
+ * @param[in] stride_x convolution stride x
+ * @param[in] stride_y convolution stride y
+ * @param[in] bias pointer to bias
+ * @param[in] bias_shift amount of left-shift for bias
+ * @param[in] out_shift amount of right-shift for output
+ * @param[in,out] Im_out pointer to output tensor
+ * @param[in] dim_im_out_x output tensor dimension x
+ * @param[in] dim_im_out_y output tensor dimension y
+ * @param[in,out] bufferA pointer to buffer space for input
+ * @param[in,out] bufferB pointer to buffer space for output
+ * @return The function returns either
+ * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
+ *
+ * This function is the version with full list of optimization tricks, but with
+ * some contraints:
+ * ch_im_in is multiple of 4
+ * ch_im_out is multiple of 2
+ */
+
+arm_status arm_convolve_HWC_q7_fast_nonsquare(const q7_t * Im_in,
+ const uint16_t dim_im_in_x,
+ const uint16_t dim_im_in_y,
+ const uint16_t ch_im_in,
+ const q7_t * wt,
+ const uint16_t ch_im_out,
+ const uint16_t dim_kernel_x,
+ const uint16_t dim_kernel_y,
+ const uint16_t padding_x,
+ const uint16_t padding_y,
+ const uint16_t stride_x,
+ const uint16_t stride_y,
+ const q7_t * bias,
+ const uint16_t bias_shift,
+ const uint16_t out_shift,
+ q7_t * Im_out,
+ const uint16_t dim_im_out_x,
+ const uint16_t dim_im_out_y,
+ q15_t * bufferA,
+ q7_t * bufferB)
+{
+
+#if defined (ARM_MATH_DSP)
+ /* Run the following code for Cortex-M4 and Cortex-M7 */
+
+ int16_t i_out_y, i_out_x, i_ker_y, i_ker_x;
+
+ /* -----------------------
+ * Here we use bufferA as q15_t internally as computation are done with q15_t level
+ * im2col are done to output in q15_t format from q7_t input
+ */
+
+ q15_t *pBuffer = bufferA;
+ q7_t *pOut = Im_out;
+
+ if (ch_im_in % 4 != 0 || ch_im_out % 2 != 0)
+ {
+ /* check if the input dimension meets the constraints */
+ return ARM_MATH_SIZE_MISMATCH;
+ }
+
+ /*
+ * Here we split the entire matrix into three regions depending on the padding situation
+ * Top: i_out_y from 0 to padding - 1
+ * Middle: i_out_y from padding to dim_im_out-padding-1
+ * Bottom: i_out_y from dim_im_out-padding to dim_im_out-1
+ */
+
+ /* top part */
+ for (i_out_y = 0; i_out_y < padding_y; i_out_y++)
+ {
+ for (i_out_x = 0; i_out_x < dim_im_out_x; i_out_x++)
+ {
+ /* This part implements the im2col function */
+ for (i_ker_y = i_out_y * stride_y - padding_y; i_ker_y < i_out_y * stride_y - padding_y + dim_kernel_y;
+ i_ker_y++)
+ {
+ for (i_ker_x = i_out_x * stride_x - padding_x; i_ker_x < i_out_x * stride_x - padding_x + dim_kernel_x;
+ i_ker_x++)
+ {
+ if (i_ker_y < 0 || i_ker_y >= dim_im_in_y || i_ker_x < 0 || i_ker_x >= dim_im_in_x)
+ {
+ /* arm_fill_q15(0, pBuffer, ch_im_in); */
+ memset(pBuffer, 0, sizeof(q15_t)*ch_im_in);
+ } else
+ {
+ arm_q7_to_q15_reordered_no_shift((q7_t *) Im_in + (i_ker_y * dim_im_in_x + i_ker_x) * ch_im_in,
+ pBuffer, ch_im_in);
+ }
+ pBuffer += ch_im_in;
+ }
+ }
+
+ if (pBuffer == bufferA + 2 * ch_im_in * dim_kernel_x * dim_kernel_y)
+ {
+ pOut =
+ arm_nn_mat_mult_kernel_q7_q15_reordered(wt, bufferA, ch_im_out, ch_im_in * dim_kernel_x * dim_kernel_y,
+ bias_shift, out_shift, bias, pOut);
+ /* counter reset */
+ pBuffer = bufferA;
+ }
+ }
+ }
+
+ /* middle part, here we also divide the x into left, mid and right */
+ for (; i_out_y < dim_im_out_y - padding_y; i_out_y++)
+ {
+
+ /* left part */
+ for (i_out_x = 0; i_out_x < padding_x; i_out_x++)
+ {
+ /* This part implements the im2col function */
+ for (i_ker_y = i_out_y * stride_y - padding_y; i_ker_y < i_out_y * stride_y - padding_y + dim_kernel_y;
+ i_ker_y++)
+ {
+ for (i_ker_x = i_out_x * stride_x - padding_x; i_ker_x < i_out_x * stride_x - padding_x + dim_kernel_x;
+ i_ker_x++)
+ {
+ if (i_ker_x < 0 || i_ker_x >= dim_im_in_x)
+ {
+ /* arm_fill_q15(0, pBuffer, ch_im_in); */
+ memset(pBuffer, 0, sizeof(q15_t)*ch_im_in);
+ } else
+ {
+ arm_q7_to_q15_reordered_no_shift((q7_t *) Im_in + (i_ker_y * dim_im_in_x + i_ker_x) * ch_im_in,
+ pBuffer, ch_im_in);
+ }
+ pBuffer += ch_im_in;
+ }
+ }
+
+ if (pBuffer == bufferA + 2 * ch_im_in * dim_kernel_x * dim_kernel_y)
+ {
+ pOut =
+ arm_nn_mat_mult_kernel_q7_q15_reordered(wt, bufferA, ch_im_out, ch_im_in * dim_kernel_x * dim_kernel_y,
+ bias_shift, out_shift, bias, pOut);
+ /* counter reset */
+ pBuffer = bufferA;
+ }
+ }
+
+ /* mid part */
+ for (; i_out_x < dim_im_out_x - padding_x; i_out_x++)
+ {
+ /* This part implements the im2col function */
+ for (i_ker_y = i_out_y * stride_y - padding_y; i_ker_y < i_out_y * stride_y - padding_y + dim_kernel_y;
+ i_ker_y++)
+ {
+ arm_q7_to_q15_reordered_no_shift((q7_t *) Im_in +
+ (i_ker_y * dim_im_in_x + i_out_x * stride_x - padding_x) * ch_im_in,
+ pBuffer, ch_im_in * dim_kernel_x);
+ pBuffer += ch_im_in * dim_kernel_x;
+ }
+
+ if (pBuffer == bufferA + 2 * ch_im_in * dim_kernel_x * dim_kernel_y)
+ {
+ pOut =
+ arm_nn_mat_mult_kernel_q7_q15_reordered(wt, bufferA, ch_im_out, ch_im_in * dim_kernel_x * dim_kernel_y,
+ bias_shift, out_shift, bias, pOut);
+ /* counter reset */
+ pBuffer = bufferA;
+ }
+ }
+
+ /* right part */
+ for (; i_out_x < dim_im_out_x; i_out_x++)
+ {
+ /* This part implements the im2col function */
+ for (i_ker_y = i_out_y * stride_y - padding_y; i_ker_y < i_out_y * stride_y - padding_y + dim_kernel_y;
+ i_ker_y++)
+ {
+ for (i_ker_x = i_out_x * stride_x - padding_x; i_ker_x < i_out_x * stride_x - padding_x + dim_kernel_x;
+ i_ker_x++)
+ {
+ if (i_ker_x < 0 || i_ker_x >= dim_im_in_x)
+ {
+ /* arm_fill_q15(0, pBuffer, ch_im_in); */
+ memset(pBuffer, 0, sizeof(q15_t)*ch_im_in);
+ } else
+ {
+ arm_q7_to_q15_reordered_no_shift((q7_t *) Im_in + (i_ker_y * dim_im_in_x + i_ker_x) * ch_im_in,
+ pBuffer, ch_im_in);
+ }
+ pBuffer += ch_im_in;
+ }
+ }
+
+ if (pBuffer == bufferA + 2 * ch_im_in * dim_kernel_x * dim_kernel_y)
+ {
+ pOut =
+ arm_nn_mat_mult_kernel_q7_q15_reordered(wt, bufferA, ch_im_out, ch_im_in * dim_kernel_x * dim_kernel_y,
+ bias_shift, out_shift, bias, pOut);
+ /* counter reset */
+ pBuffer = bufferA;
+ }
+ }
+ }
+
+ for (; i_out_y < dim_im_out_y; i_out_y++)
+ {
+ for (i_out_x = 0; i_out_x < dim_im_out_x; i_out_x++)
+ {
+ /* This part implements the im2col function */
+ for (i_ker_y = i_out_y * stride_y - padding_y; i_ker_y < i_out_y * stride_y - padding_y + dim_kernel_y;
+ i_ker_y++)
+ {
+ for (i_ker_x = i_out_x * stride_x - padding_x; i_ker_x < i_out_x * stride_x - padding_x + dim_kernel_x;
+ i_ker_x++)
+ {
+ if (i_ker_y < 0 || i_ker_y >= dim_im_in_y || i_ker_x < 0 || i_ker_x >= dim_im_in_x)
+ {
+ /* arm_fill_q15(0, pBuffer, ch_im_in); */
+ memset(pBuffer, 0, sizeof(q15_t)*ch_im_in);
+ } else
+ {
+ arm_q7_to_q15_reordered_no_shift((q7_t *) Im_in + (i_ker_y * dim_im_in_x + i_ker_x) * ch_im_in,
+ pBuffer, ch_im_in);
+ }
+ pBuffer += ch_im_in;
+ }
+ }
+
+ if (pBuffer == bufferA + 2 * ch_im_in * dim_kernel_x * dim_kernel_y)
+ {
+ pOut =
+ arm_nn_mat_mult_kernel_q7_q15_reordered(wt, bufferA, ch_im_out, ch_im_in * dim_kernel_x * dim_kernel_y,
+ bias_shift, out_shift, bias, pOut);
+ /* counter reset */
+ pBuffer = bufferA;
+ }
+ }
+ }
+
+ /* check if there is left-over for compute */
+ if (pBuffer != bufferA)
+ {
+ const q7_t *pA = wt;
+ int i;
+ for (i = 0; i < ch_im_out; i++)
+ {
+ q31_t sum = ((q31_t)(bias[i]) << bias_shift) + NN_ROUND(out_shift);
+ q15_t *pB = bufferA;
+ /* basically each time it process 4 entries */
+ uint16_t colCnt = ch_im_in * dim_kernel_x * dim_kernel_y >> 2;
+
+ while (colCnt)
+ {
+
+ q31_t inA1, inA2;
+ q31_t inB1, inB2;
+
+ pA = (const q7_t *)read_and_pad_reordered((void *)pA, &inA1, &inA2);
+
+ inB1 = *__SIMD32(pB)++;
+ sum = __SMLAD(inA1, inB1, sum);
+ inB2 = *__SIMD32(pB)++;
+ sum = __SMLAD(inA2, inB2, sum);
+
+ colCnt--;
+ }
+ colCnt = (ch_im_in * dim_kernel_y * dim_kernel_x) & 0x3;
+ while (colCnt)
+ {
+ q7_t inA1 = *pA++;
+ q15_t inB1 = *pB++;
+ sum += inA1 * inB1;
+ colCnt--;
+ }
+ *pOut = (q7_t) __SSAT((sum >> out_shift), 8);
+ pOut++;
+
+ }
+
+ }
+
+#else
+ /* Run the following code as reference implementation for Cortex-M0 and Cortex-M3 */
+ int i, j, k, l, m, n;
+ int conv_out;
+ int in_row, in_col;
+
+ if (ch_im_in % 4 != 0 || ch_im_out % 2 != 0)
+ {
+ /* check if the input dimension meets the constraints */
+ return ARM_MATH_SIZE_MISMATCH;
+ }
+
+ for (i = 0; i < ch_im_out; i++)
+ {
+ for (j = 0; j < dim_im_out_y; j++)
+ {
+ for (k = 0; k < dim_im_out_x; k++)
+ {
+ conv_out = ((q31_t)(bias[i]) << bias_shift) + NN_ROUND(out_shift);
+ for (m = 0; m < dim_kernel_y; m++)
+ {
+ for (n = 0; n < dim_kernel_x; n++)
+ {
+ /* if-for implementation */
+ in_row = stride_y * j + m - padding_y;
+ in_col = stride_x * k + n - padding_x;
+ if (in_row >= 0 && in_col >= 0 && in_row < dim_im_in_y && in_col < dim_im_in_x)
+ {
+ for (l = 0; l < ch_im_in; l++)
+ {
+ conv_out += Im_in[(in_row * dim_im_in_x + in_col) * ch_im_in + l] *
+ wt[i * ch_im_in * dim_kernel_y * dim_kernel_x + (m * dim_kernel_x + n) * ch_im_in + l];
+ }
+ }
+ }
+ }
+ Im_out[i + (j * dim_im_out_x + k) * ch_im_out] = (q7_t) __SSAT((conv_out >> out_shift), 8);
+ }
+ }
+ }
+
+
+#endif /* ARM_MATH_DSP */
+
+ /* Return to application */
+ return ARM_MATH_SUCCESS;
+}
+
+/**
+ * @} end of NNConv group
+ */
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