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107 lines
4.1 KiB
C
107 lines
4.1 KiB
C
/**
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*
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* \section COPYRIGHT
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*
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* Copyright 2013-2015 Software Radio Systems Limited
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*
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* \section LICENSE
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*
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* This file is part of the srsLTE library.
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*
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* srsLTE is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* srsLTE is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* A copy of the GNU Affero General Public License can be found in
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* the LICENSE file in the top-level directory of this distribution
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* and at http://www.gnu.org/licenses/.
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*
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*/
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#ifndef SRSLTE_MAT_H
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#define SRSLTE_MAT_H
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#include "srslte/config.h"
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#include "srslte/phy/utils/simd.h"
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/* Generic implementation for complex reciprocal */
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SRSLTE_API cf_t srslte_mat_cf_recip_gen(cf_t a);
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/* Generic implementation for 2x2 determinant */
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SRSLTE_API cf_t srslte_mat_2x2_det_gen(cf_t a00, cf_t a01, cf_t a10, cf_t a11);
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/* Generic implementation for 2x2 Matrix Inversion */
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SRSLTE_API void srslte_mat_2x2_inv_gen(cf_t a00, cf_t a01, cf_t a10, cf_t a11,
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cf_t *r00, cf_t *r01, cf_t *r10, cf_t *r11);
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/* Generic implementation for Zero Forcing (ZF) solver */
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SRSLTE_API void srslte_mat_2x2_zf_gen(cf_t y0, cf_t y1,
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cf_t h00, cf_t h01, cf_t h10, cf_t h11,
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cf_t *x0, cf_t *x1,
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float norm);
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/* Generic implementation for Minimum Mean Squared Error (MMSE) solver */
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SRSLTE_API void srslte_mat_2x2_mmse_gen(cf_t y0, cf_t y1,
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cf_t h00, cf_t h01, cf_t h10, cf_t h11,
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cf_t *x0, cf_t *x1,
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float noise_estimate,
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float norm);
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SRSLTE_API float srslte_mat_2x2_cn(cf_t h00,
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cf_t h01,
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cf_t h10,
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cf_t h11);
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#ifdef LV_HAVE_SSE
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/* SSE implementation for complex reciprocal */
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SRSLTE_API __m128 srslte_mat_cf_recip_sse(__m128 a);
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/* SSE implementation for 2x2 determinant */
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SRSLTE_API __m128 srslte_mat_2x2_det_sse(__m128 a00, __m128 a01, __m128 a10, __m128 a11);
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/* SSE implementation for Zero Forcing (ZF) solver */
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SRSLTE_API void srslte_mat_2x2_zf_sse(__m128 y0, __m128 y1,
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__m128 h00, __m128 h01, __m128 h10, __m128 h11,
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__m128 *x0, __m128 *x1,
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float norm);
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/* SSE implementation for Minimum Mean Squared Error (MMSE) solver */
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SRSLTE_API void srslte_mat_2x2_mmse_sse(__m128 y0, __m128 y1,
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__m128 h00, __m128 h01, __m128 h10, __m128 h11,
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__m128 *x0, __m128 *x1,
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float noise_estimate, float norm);
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#endif /* LV_HAVE_SSE */
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#ifdef LV_HAVE_AVX
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/* AVX implementation for complex reciprocal */
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SRSLTE_API __m256 srslte_mat_cf_recip_avx(__m256 a);
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/* AVX implementation for 2x2 determinant */
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SRSLTE_API __m256 srslte_mat_2x2_det_avx(__m256 a00, __m256 a01, __m256 a10, __m256 a11);
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/* AVX implementation for Zero Forcing (ZF) solver */
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SRSLTE_API void srslte_mat_2x2_zf_avx(__m256 y0, __m256 y1,
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__m256 h00, __m256 h01, __m256 h10, __m256 h11,
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__m256 *x0, __m256 *x1,
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float norm);
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/* AVX implementation for Minimum Mean Squared Error (MMSE) solver */
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SRSLTE_API void srslte_mat_2x2_mmse_avx(__m256 y0, __m256 y1,
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__m256 h00, __m256 h01, __m256 h10, __m256 h11,
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__m256 *x0, __m256 *x1,
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float noise_estimate, float norm);
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#endif /* LV_HAVE_AVX */
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#endif // SRSLTE_MAT_H
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