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Diffstat (limited to 'Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_mult_q15.c')
| -rw-r--r-- | Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_mult_q15.c | 843 |
1 files changed, 843 insertions, 0 deletions
diff --git a/Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_mult_q15.c b/Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_mult_q15.c new file mode 100644 index 0000000..e078681 --- /dev/null +++ b/Drivers/CMSIS/DSP/Source/MatrixFunctions/arm_mat_mult_q15.c @@ -0,0 +1,843 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_mat_mult_q15.c + * Description: Q15 matrix multiplication + * + * $Date: 3 Nov 2021 + * $Revision: V1.10.0 + * + * Target Processor: Cortex-M and Cortex-A cores + * -------------------------------------------------------------------- */ +/* + * Copyright (C) 2010-2021 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. + */ + +#include "dsp/matrix_functions.h" + +/** + @ingroup groupMatrix + */ + +/** + @addtogroup MatrixMult + @{ + */ + +/** + @brief Q15 matrix multiplication. + @param[in] pSrcA points to the first input matrix structure + @param[in] pSrcB points to the second input matrix structure + @param[out] pDst points to output matrix structure + @param[in] pState points to the array for storing intermediate results + @return execution status + - \ref ARM_MATH_SUCCESS : Operation successful + - \ref ARM_MATH_SIZE_MISMATCH : Matrix size check failed + + @par Scaling and Overflow Behavior + The function is implemented using an internal 64-bit accumulator. The inputs to the + multiplications are in 1.15 format and multiplications yield a 2.30 result. + The 2.30 intermediate results are accumulated in a 64-bit accumulator in 34.30 format. + This approach provides 33 guard bits and there is no risk of overflow. + The 34.30 result is then truncated to 34.15 format by discarding the low 15 bits + and then saturated to 1.15 format. + @par + Refer to \ref arm_mat_mult_fast_q15() for a faster but less precise version of this function. + */ +#if defined(ARM_MATH_MVEI) && !defined(ARM_MATH_AUTOVECTORIZE) + +#define MVE_ASRL_SAT16(acc, shift) ((sqrshrl_sat48(acc, -(32-shift)) >> 32) & 0xffffffff) + +#define MATRIX_DIM2 2 +#define MATRIX_DIM3 3 +#define MATRIX_DIM4 4 + +__STATIC_INLINE arm_status arm_mat_mult_q15_2x2_mve( + const arm_matrix_instance_q15 * pSrcA, + const arm_matrix_instance_q15 * pSrcB, + arm_matrix_instance_q15 * pDst) +{ + q15_t *pInB = pSrcB->pData; /* input data matrix pointer B */ + q15_t *pInA = pSrcA->pData; /* input data matrix pointer A */ + q15_t *pOut = pDst->pData; /* output data matrix pointer */ + uint16x8_t vecColBOffs; + q15_t *pInA0 = pInA; + q15_t *pInA1 = pInA0 + MATRIX_DIM2; + q63_t acc0, acc1; + q15x8_t vecB, vecA0, vecA1; + mve_pred16_t p0 = vctp16q(MATRIX_DIM2); + + vecColBOffs = vidupq_u16((uint32_t)0, 2); /* MATRIX_DIM2 */ + + pInB = pSrcB->pData; + + vecB = vldrhq_gather_shifted_offset_z_s16((q15_t const *)pInB, vecColBOffs, p0); + + vecA0 = vldrhq_s16(pInA0); + vecA1 = vldrhq_s16(pInA1); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + + pOut[0 * MATRIX_DIM2] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM2] = (q15_t) __SSAT(acc1, 16); + pOut++; + + /* move to next B column */ + pInB = pInB + 1; + + vecB = vldrhq_gather_shifted_offset_z_s16(pInB, vecColBOffs, p0); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + + pOut[0 * MATRIX_DIM2] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM2] = (q15_t) __SSAT(acc1, 16); + + /* + * Return to application + */ + return (ARM_MATH_SUCCESS); +} + + + +__STATIC_INLINE arm_status arm_mat_mult_q15_3x3_mve( + const arm_matrix_instance_q15 * pSrcA, + const arm_matrix_instance_q15 * pSrcB, + arm_matrix_instance_q15 * pDst) +{ + q15_t *pInB = pSrcB->pData; /* input data matrix pointer B */ + q15_t *pInA = pSrcA->pData; /* input data matrix pointer A */ + q15_t *pOut = pDst->pData; /* output data matrix pointer */ + uint16x8_t vecColBOffs; + q15_t *pInA0 = pInA; + q15_t *pInA1 = pInA0 + MATRIX_DIM3; + q15_t *pInA2 = pInA1 + MATRIX_DIM3; + q63_t acc0, acc1, acc2; + q15x8_t vecB, vecA0, vecA1, vecA2; + mve_pred16_t p0 = vctp16q(MATRIX_DIM3); + + vecColBOffs = vidupq_u16((uint32_t)0, 1); + vecColBOffs = vecColBOffs * MATRIX_DIM3; + + pInB = pSrcB->pData; + + vecB = vldrhq_gather_shifted_offset_z_s16((q15_t const *)pInB, vecColBOffs, p0); + + vecA0 = vldrhq_s16(pInA0); + vecA1 = vldrhq_s16(pInA1); + vecA2 = vldrhq_s16(pInA2); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + + pOut[0 * MATRIX_DIM3] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM3] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM3] = (q15_t) __SSAT(acc2, 16); + pOut++; + + /* move to next B column */ + pInB = pInB + 1; + + vecB = vldrhq_gather_shifted_offset_z_s16(pInB, vecColBOffs, p0); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + + pOut[0 * MATRIX_DIM3] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM3] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM3] = (q15_t) __SSAT(acc2, 16); + pOut++; + + /* move to next B column */ + pInB = pInB + 1; + + vecB = vldrhq_gather_shifted_offset_z_s16(pInB, vecColBOffs, p0); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + + pOut[0 * MATRIX_DIM3] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM3] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM3] = (q15_t) __SSAT(acc2, 16); + /* + * Return to application + */ + return (ARM_MATH_SUCCESS); +} + + +__STATIC_INLINE arm_status arm_mat_mult_q15_4x4_mve( + const arm_matrix_instance_q15 * pSrcA, + const arm_matrix_instance_q15 * pSrcB, + arm_matrix_instance_q15 * pDst) +{ + q15_t *pInB = pSrcB->pData; /* input data matrix pointer B */ + q15_t *pInA = pSrcA->pData; /* input data matrix pointer A */ + q15_t *pOut = pDst->pData; /* output data matrix pointer */ + uint16x8_t vecColBOffs; + q15_t *pInA0 = pInA; + q15_t *pInA1 = pInA0 + MATRIX_DIM4; + q15_t *pInA2 = pInA1 + MATRIX_DIM4; + q15_t *pInA3 = pInA2 + MATRIX_DIM4; + q63_t acc0, acc1, acc2, acc3; + q15x8_t vecB, vecA0, vecA1, vecA2, vecA3; + mve_pred16_t p0 = vctp16q(MATRIX_DIM4); + + vecColBOffs = vidupq_u16((uint32_t)0, 4); + + pInB = pSrcB->pData; + + vecB = vldrhq_gather_shifted_offset_z_s16((q15_t const *)pInB, vecColBOffs, p0); + + vecA0 = vldrhq_s16(pInA0); + vecA1 = vldrhq_s16(pInA1); + vecA2 = vldrhq_s16(pInA2); + vecA3 = vldrhq_s16(pInA3); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + acc3 = vmlaldavq(vecA3, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + acc3 = asrl(acc3, 15); + + pOut[0 * MATRIX_DIM4] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM4] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM4] = (q15_t) __SSAT(acc2, 16); + pOut[3 * MATRIX_DIM4] = (q15_t) __SSAT(acc3, 16); + pOut++; + + /* move to next B column */ + pInB = pInB + 1; + + vecB = vldrhq_gather_shifted_offset_z_s16(pInB, vecColBOffs, p0); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + acc3 = vmlaldavq(vecA3, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + acc3 = asrl(acc3, 15); + + pOut[0 * MATRIX_DIM4] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM4] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM4] = (q15_t) __SSAT(acc2, 16); + pOut[3 * MATRIX_DIM4] = (q15_t) __SSAT(acc3, 16); + + pOut++; + + /* move to next B column */ + pInB = pInB + 1; + + vecB = vldrhq_gather_shifted_offset_z_s16(pInB, vecColBOffs, p0); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + acc3 = vmlaldavq(vecA3, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + acc3 = asrl(acc3, 15); + + pOut[0 * MATRIX_DIM4] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM4] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM4] = (q15_t) __SSAT(acc2, 16); + pOut[3 * MATRIX_DIM4] = (q15_t) __SSAT(acc3, 16); + + pOut++; + + /* move to next B column */ + pInB = pInB + 1; + + vecB = vldrhq_gather_shifted_offset_z_s16(pInB, vecColBOffs, p0); + + acc0 = vmlaldavq(vecA0, vecB); + acc1 = vmlaldavq(vecA1, vecB); + acc2 = vmlaldavq(vecA2, vecB); + acc3 = vmlaldavq(vecA3, vecB); + + acc0 = asrl(acc0, 15); + acc1 = asrl(acc1, 15); + acc2 = asrl(acc2, 15); + acc3 = asrl(acc3, 15); + + pOut[0 * MATRIX_DIM4] = (q15_t) __SSAT(acc0, 16); + pOut[1 * MATRIX_DIM4] = (q15_t) __SSAT(acc1, 16); + pOut[2 * MATRIX_DIM4] = (q15_t) __SSAT(acc2, 16); + pOut[3 * MATRIX_DIM4] = (q15_t) __SSAT(acc3, 16); + /* + * Return to application + */ + return (ARM_MATH_SUCCESS); +} + + +arm_status arm_mat_mult_q15( + const arm_matrix_instance_q15 * pSrcA, + const arm_matrix_instance_q15 * pSrcB, + arm_matrix_instance_q15 * pDst, + q15_t * pState) +{ + q15_t *pInA = pSrcA->pData; /* input data matrix pointer A */ + q15_t *pInB = pSrcB->pData; /* input data matrix pointer B */ + q15_t *pInA2; + q15_t *pInB2; + q15_t *px; /* Temporary output data matrix pointer */ + q15_t *px2; /* Temporary output data matrix pointer */ + uint32_t numRowsA = pSrcA->numRows; /* number of rows of input matrix A */ + uint32_t numColsB = pSrcB->numCols; /* number of columns of input matrix B */ + uint32_t numColsA = pSrcA->numCols; /* number of columns of input matrix A */ + uint32_t numRowsB = pSrcB->numRows; /* number of rows of input matrix A */ + uint32_t col, i = 0u, j, row = numRowsB; /* loop counters */ + q15_t *pSrcBT = pState; /* input data matrix pointer for transpose */ + uint32_t blkCnt; /* loop counters */ + arm_status status; /* Status of matrix multiplication */ + arm_matrix_instance_q15 BT; + +#ifdef ARM_MATH_MATRIX_CHECK + + /* Check for matrix mismatch condition */ + if ((pSrcA->numCols != pSrcB->numRows) || + (pSrcA->numRows != pDst->numRows) || + (pSrcB->numCols != pDst->numCols) ) + { + /* Set status as ARM_MATH_SIZE_MISMATCH */ + status = ARM_MATH_SIZE_MISMATCH; + } + else +#endif + { + /* small squared matrix specialized routines */ + if (numRowsA == numColsB && numColsB == numColsA) { + + if (numRowsA == 1) { + q63_t sum; + sum = pInA[0] * pInB[0]; + pDst->pData[0] = (q15_t) __SSAT((sum >> 15), 16); + return (ARM_MATH_SUCCESS); + } else if (numRowsA == 2) + return arm_mat_mult_q15_2x2_mve(pSrcA, pSrcB, pDst); + else if (numRowsA == 3) + return arm_mat_mult_q15_3x3_mve(pSrcA, pSrcB, pDst); + else if (numRowsA == 4) + return arm_mat_mult_q15_4x4_mve(pSrcA, pSrcB, pDst); + } + + /* + * Matrix transpose + */ + + BT.numRows = numColsB; + BT.numCols = numRowsB; + BT.pData = pSrcBT; + + arm_mat_trans_q15(pSrcB, &BT); + + + /* + * Reset the variables for the usage in the following multiplication process + */ + i = 0; + row = numRowsA >> 1; + px = pDst->pData; + px2 = px + numColsB; + + /* + * The following loop performs the dot-product of each row in pSrcA with each column in pSrcB + */ + + /* + * row loop + */ + while (row > 0u) { + /* + * For every row wise process, the column loop counter is to be initiated + */ + col = numColsB >> 1; + /* + * For every row wise process, the pIn2 pointer is set + * to the starting address of the transposed pSrcB data + */ + pInB = pSrcBT; + pInB2 = pInB + numRowsB; + j = 0; + + /* + * column loop + */ + while (col > 0u) { + q15_t const *pSrcAVec, *pSrcBVec, *pSrcA2Vec, *pSrcB2Vec; + q15x8_t vecA, vecA2, vecB, vecB2; + q63_t acc0, acc1, acc2, acc3; + + /* + * Initiate the pointer pIn1 to point to the starting address of the column being processed + */ + pInA = pSrcA->pData + i; + pInA2 = pInA + numColsA; + pInB = pSrcBT + j; + pInB2 = pInB + numRowsB; + + + pSrcAVec = (q15_t const *) pInA; + pSrcA2Vec = (q15_t const *) pInA2; + pSrcBVec = (q15_t const *) pInB; + pSrcB2Vec = (q15_t const *) pInB2; + + acc0 = 0LL; + acc1 = 0LL; + acc2 = 0LL; + acc3 = 0LL; + + vecA = vld1q(pSrcAVec); + pSrcAVec += 8; + + blkCnt = numColsA / 8; + while (blkCnt > 0U) { + vecB = vld1q(pSrcBVec); + pSrcBVec += 8; + acc0 = vmlaldavaq(acc0, vecA, vecB); + vecA2 = vld1q(pSrcA2Vec); + pSrcA2Vec += 8; + acc1 = vmlaldavaq(acc1, vecA2, vecB); + vecB2 = vld1q(pSrcB2Vec); + pSrcB2Vec += 8; + acc2 = vmlaldavaq(acc2, vecA, vecB2); + vecA = vld1q(pSrcAVec); + pSrcAVec += 8; + acc3 = vmlaldavaq(acc3, vecA2, vecB2); + + blkCnt--; + } + /* + * tail + */ + blkCnt = numColsA & 7; + if (blkCnt > 0U) { + mve_pred16_t p0 = vctp16q(blkCnt); + vecB = vld1q(pSrcBVec); + acc0 = vmlaldavaq_p(acc0, vecA, vecB, p0); + vecA2 = vld1q(pSrcA2Vec); + acc1 = vmlaldavaq_p(acc1, vecA2, vecB, p0); + vecB2 = vld1q(pSrcB2Vec); + acc2 = vmlaldavaq_p(acc2, vecA, vecB2, p0); + vecA = vld1q(pSrcAVec); + acc3 = vmlaldavaq_p(acc3, vecA2, vecB2, p0); + } + + *px++ = (q15_t) MVE_ASRL_SAT16(acc0, 15); + *px++ = (q15_t) MVE_ASRL_SAT16(acc2, 15); + *px2++ = (q15_t) MVE_ASRL_SAT16(acc1, 15); + *px2++ = (q15_t) MVE_ASRL_SAT16(acc3, 15); + j += numRowsB * 2; + /* + * Decrement the column loop counter + */ + col--; + + } + + i = i + numColsA * 2; + px = px2 + (numColsB & 1u); + px2 = px + numColsB; + /* + * Decrement the row loop counter + */ + row--; + } + + /* + * Compute remaining row and/or column below + */ + + if (numColsB & 1u) { + row = numRowsA & (~0x1); //avoid redundant computation + px = pDst->pData + numColsB - 1; + i = 0; + + /* + * row loop + */ + while (row > 0) { + q15_t const *pSrcAVec, *pSrcBVec; + q15x8_t vecA, vecB; + q63_t acc0; + + /* + * point to last column in matrix B + */ + pInB = pSrcBT + numRowsB * (numColsB - 1); + pInA = pSrcA->pData + i; + + pSrcAVec = (q15_t const *) pInA; + pSrcBVec = (q15_t const *) pInB; + + acc0 = 0LL; + blkCnt = (numColsA) / 8; + while (blkCnt > 0U) { + vecA = vld1q(pSrcAVec); + pSrcAVec += 8; + vecB = vld1q(pSrcBVec); + pSrcBVec += 8; + acc0 = vmlaldavaq(acc0, vecA, vecB); + + blkCnt--; + } + /* + * tail + */ + blkCnt = (numColsA & 7); + if (blkCnt > 0U) { + mve_pred16_t p0 = vctp16q(blkCnt); + vecA = vld1q(pSrcAVec); + vecB = vld1q(pSrcBVec); + acc0 = vmlaldavaq_p(acc0, vecA, vecB, p0); + } + + *px = (q15_t) MVE_ASRL_SAT16(acc0, 15); + + px += numColsB; + + i += numColsA; + /* + * Decrement the row loop counter + */ + row--; + } + } + + if (numRowsA & 1u) { + col = numColsB; + i = 0u; + /* + * point to last row in output matrix + */ + px = pDst->pData + (numColsB) * (numRowsA - 1); + /* + * col loop + */ + while (col > 0) { + q15_t const *pSrcAVec, *pSrcBVec; + q15x8_t vecA, vecB; + q63_t acc0; + + /* + * point to last row in matrix A + */ + pInA = pSrcA->pData + (numRowsA - 1) * numColsA; + pInB = pSrcBT + i; + + /* + * Set the variable sum, that acts as accumulator, to zero + */ + pSrcAVec = (q15_t const *) pInA; + pSrcBVec = (q15_t const *) pInB; + acc0 = 0LL; + + blkCnt = ((numColsA) / 8); + while (blkCnt > 0U) { + vecA = vld1q(pSrcAVec); + pSrcAVec += 8; + vecB = vld1q(pSrcBVec); + pSrcBVec += 8; + acc0 = vmlaldavaq(acc0, vecA, vecB); + + blkCnt--; + } + /* + * tail + */ + blkCnt = (numColsA & 7); + if (blkCnt > 0U) { + mve_pred16_t p0 = vctp16q(blkCnt); + vecA = vld1q(pSrcAVec); + vecB = vld1q(pSrcBVec); + acc0 = vmlaldavaq_p(acc0, vecA, vecB, p0); + } + + *px++ = (q15_t) MVE_ASRL_SAT16(acc0, 15); + + i += numColsA; + + /* + * Decrement the col loop counter + */ + col--; + } + } + + /* Set status as ARM_MATH_SUCCESS */ + status = ARM_MATH_SUCCESS; + } + /* Return to application */ + return (status); +} + +#else +arm_status arm_mat_mult_q15( + const arm_matrix_instance_q15 * pSrcA, + const arm_matrix_instance_q15 * pSrcB, + arm_matrix_instance_q15 * pDst, + q15_t * pState) +{ + q63_t sum; /* Accumulator */ + +#if defined (ARM_MATH_DSP) /* != CM0 */ + + q15_t *pSrcBT = pState; /* Input data matrix pointer for transpose */ + q15_t *pInA = pSrcA->pData; /* Input data matrix pointer A of Q15 type */ + q15_t *pInB = pSrcB->pData; /* Input data matrix pointer B of Q15 type */ + q15_t *px; /* Temporary output data matrix pointer */ + uint16_t numRowsA = pSrcA->numRows; /* Number of rows of input matrix A */ + uint16_t numColsB = pSrcB->numCols; /* Number of columns of input matrix B */ + uint16_t numColsA = pSrcA->numCols; /* Number of columns of input matrix A */ + uint16_t numRowsB = pSrcB->numRows; /* Number of rows of input matrix B */ + uint32_t col, i = 0U, row = numRowsB, colCnt; /* Loop counters */ + arm_status status; /* Status of matrix multiplication */ + + q31_t inA1, inB1, inA2, inB2; + arm_matrix_instance_q15 BT; + +#ifdef ARM_MATH_MATRIX_CHECK + + /* Check for matrix mismatch condition */ + if ((pSrcA->numCols != pSrcB->numRows) || + (pSrcA->numRows != pDst->numRows) || + (pSrcB->numCols != pDst->numCols) ) + { + /* Set status as ARM_MATH_SIZE_MISMATCH */ + status = ARM_MATH_SIZE_MISMATCH; + } + else + +#endif /* #ifdef ARM_MATH_MATRIX_CHECK */ + { + + BT.numRows = numColsB; + BT.numCols = numRowsB; + BT.pData = pSrcBT; + + arm_mat_trans_q15(pSrcB,&BT); + /* Reset variables for usage in following multiplication process */ + row = numRowsA; + i = 0U; + px = pDst->pData; + + /* The following loop performs the dot-product of each row in pSrcA with each column in pSrcB */ + /* row loop */ + do + { + /* For every row wise process, column loop counter is to be initiated */ + col = numColsB; + + /* For every row wise process, pIn2 pointer is set to starting address of transposed pSrcB data */ + pInB = pSrcBT; + + /* column loop */ + do + { + /* Set variable sum, that acts as accumulator, to zero */ + sum = 0; + + /* Initiate pointer pInA to point to starting address of column being processed */ + pInA = pSrcA->pData + i; + + /* Apply loop unrolling and compute 2 MACs simultaneously. */ + colCnt = numColsA >> 2U; + + /* matrix multiplication */ + while (colCnt > 0U) + { + /* c(m,n) = a(1,1) * b(1,1) + a(1,2) * b(2,1) + .... + a(m,p) * b(p,n) */ + + /* read real and imag values from pSrcA and pSrcB buffer */ + inA1 = read_q15x2_ia (&pInA); + inB1 = read_q15x2_ia (&pInB); + + inA2 = read_q15x2_ia (&pInA); + inB2 = read_q15x2_ia (&pInB); + + /* Multiply and Accumulates */ + sum = __SMLALD(inA1, inB1, sum); + sum = __SMLALD(inA2, inB2, sum); + + /* Decrement loop counter */ + colCnt--; + } + + /* process remaining column samples */ + colCnt = numColsA % 0x4U; + + while (colCnt > 0U) + { + /* c(m,n) = a(1,1) * b(1,1) + a(1,2) * b(2,1) + .... + a(m,p) * b(p,n) */ + sum += *pInA++ * *pInB++; + + /* Decrement loop counter */ + colCnt--; + } + + /* Saturate and store result in destination buffer */ + *px = (q15_t) (__SSAT((sum >> 15), 16)); + px++; + + /* Decrement column loop counter */ + col--; + + } while (col > 0U); + + i = i + numColsA; + + /* Decrement row loop counter */ + row--; + + } while (row > 0U); + +#else /* #if defined (ARM_MATH_DSP) */ + + q15_t *pIn1 = pSrcA->pData; /* Input data matrix pointer A */ + q15_t *pIn2 = pSrcB->pData; /* Input data matrix pointer B */ + q15_t *pInA = pSrcA->pData; /* Input data matrix pointer A of Q15 type */ + q15_t *pInB = pSrcB->pData; /* Input data matrix pointer B of Q15 type */ + q15_t *pOut = pDst->pData; /* Output data matrix pointer */ + q15_t *px; /* Temporary output data matrix pointer */ + uint16_t numColsB = pSrcB->numCols; /* Number of columns of input matrix B */ + uint16_t numColsA = pSrcA->numCols; /* Number of columns of input matrix A */ + uint16_t numRowsA = pSrcA->numRows; /* Number of rows of input matrix A */ + uint32_t col, i = 0U, row = numRowsA, colCnt; /* Loop counters */ + arm_status status; /* Status of matrix multiplication */ + (void)pState; + +#ifdef ARM_MATH_MATRIX_CHECK + + /* Check for matrix mismatch condition */ + if ((pSrcA->numCols != pSrcB->numRows) || + (pSrcA->numRows != pDst->numRows) || + (pSrcB->numCols != pDst->numCols) ) + { + /* Set status as ARM_MATH_SIZE_MISMATCH */ + status = ARM_MATH_SIZE_MISMATCH; + } + else + +#endif /* #ifdef ARM_MATH_MATRIX_CHECK */ + + { + /* The following loop performs the dot-product of each row in pSrcA with each column in pSrcB */ + /* row loop */ + do + { + /* Output pointer is set to starting address of the row being processed */ + px = pOut + i; + + /* For every row wise process, column loop counter is to be initiated */ + col = numColsB; + + /* For every row wise process, pIn2 pointer is set to starting address of pSrcB data */ + pIn2 = pSrcB->pData; + + /* column loop */ + do + { + /* Set the variable sum, that acts as accumulator, to zero */ + sum = 0; + + /* Initiate pointer pIn1 to point to starting address of pSrcA */ + pIn1 = pInA; + + /* Matrix A columns number of MAC operations are to be performed */ + colCnt = numColsA; + + /* matrix multiplication */ + while (colCnt > 0U) + { + /* c(m,n) = a(1,1) * b(1,1) + a(1,2) * b(2,1) + .... + a(m,p) * b(p,n) */ + + /* Perform multiply-accumulates */ + sum += (q31_t) * pIn1++ * *pIn2; + pIn2 += numColsB; + + /* Decrement loop counter */ + colCnt--; + } + + /* Convert result from 34.30 to 1.15 format and store saturated value in destination buffer */ + + /* Saturate and store result in destination buffer */ + *px++ = (q15_t) __SSAT((sum >> 15), 16); + + /* Decrement column loop counter */ + col--; + + /* Update pointer pIn2 to point to starting address of next column */ + pIn2 = pInB + (numColsB - col); + + } while (col > 0U); + + /* Update pointer pSrcA to point to starting address of next row */ + i = i + numColsB; + pInA = pInA + numColsA; + + /* Decrement row loop counter */ + row--; + + } while (row > 0U); + +#endif /* #if defined (ARM_MATH_DSP) */ + + /* Set status as ARM_MATH_SUCCESS */ + status = ARM_MATH_SUCCESS; + } + + /* Return to application */ + return (status); +} +#endif /* defined(ARM_MATH_MVEI) */ + +/** + @} end of MatrixMult group + */ |