Add the support for RISC-V Vector.
Change-Id: Iae7800a32f5af3903c330882cdf6f292d885f266
This commit is contained in:
damonyu
175
kernel/riscv64/zgemv_n_vector.c
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175
kernel/riscv64/zgemv_n_vector.c
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/***************************************************************************
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Copyright (c) 2020, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#if !defined(DOUBLE)
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#define RVV_EFLOAT RVV_E32
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#define RVV_M RVV_M4
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#define FLOAT_V_T float32xm4_t
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#define VLEV_FLOAT vlev_float32xm4
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#define VLSEV_FLOAT vlsev_float32xm4
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#define VSEV_FLOAT vsev_float32xm4
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#define VSSEV_FLOAT vssev_float32xm4
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#define VFMACCVF_FLOAT vfmaccvf_float32xm4
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#define VFNMSACVF_FLOAT vfnmsacvf_float32xm4
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#else
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#define RVV_EFLOAT RVV_E64
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#define RVV_M RVV_M4
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#define FLOAT_V_T float64xm4_t
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#define VLEV_FLOAT vlev_float64xm4
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#define VLSEV_FLOAT vlsev_float64xm4
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#define VSEV_FLOAT vsev_float64xm4
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#define VSSEV_FLOAT vssev_float64xm4
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#define VFMACCVF_FLOAT vfmaccvf_float64xm4
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#define VFNMSACVF_FLOAT vfnmsacvf_float64xm4
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#endif
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int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha_r, FLOAT alpha_i, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
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{
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BLASLONG i = 0, j = 0, k = 0;
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BLASLONG ix = 0, iy = 0;
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FLOAT *a_ptr = a;
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FLOAT temp_r = 0.0, temp_i = 0.0;
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FLOAT_V_T va0, va1, vy0, vy1;
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unsigned int gvl = 0;
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BLASLONG stride_a = sizeof(FLOAT) * 2;
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BLASLONG stride_y = inc_y * sizeof(FLOAT) * 2;
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gvl = vsetvli(m, RVV_EFLOAT, RVV_M);
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BLASLONG inc_yv = inc_y * gvl * 2;
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BLASLONG inc_x2 = inc_x * 2;
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BLASLONG lda2 = lda * 2;
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for(k=0,j=0; k<m/gvl; k++){
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a_ptr = a;
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ix = 0;
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vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
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vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
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for(i = 0; i < n; i++){
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#if !defined(XCONJ)
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temp_r = alpha_r * x[ix] - alpha_i * x[ix+1];
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temp_i = alpha_r * x[ix+1] + alpha_i * x[ix];
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#else
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temp_r = alpha_r * x[ix] + alpha_i * x[ix+1];
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temp_i = alpha_r * x[ix+1] - alpha_i * x[ix];
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#endif
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va0 = VLSEV_FLOAT(&a_ptr[j], stride_a, gvl);
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va1 = VLSEV_FLOAT(&a_ptr[j+1], stride_a, gvl);
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#if !defined(CONJ)
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#if !defined(XCONJ)
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
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#else
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
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#endif
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#else
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#if !defined(XCONJ)
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
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#else
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
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#endif
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#endif
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a_ptr += lda2;
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ix += inc_x2;
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}
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VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
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VSSEV_FLOAT(&y[iy+1], stride_y, vy1, gvl);
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j += gvl * 2;
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iy += inc_yv;
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}
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//tail
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if(j/2 < m){
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gvl = vsetvli(m-j/2, RVV_EFLOAT, RVV_M);
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a_ptr = a;
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ix = 0;
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vy0 = VLSEV_FLOAT(&y[iy], stride_y, gvl);
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vy1 = VLSEV_FLOAT(&y[iy+1], stride_y, gvl);
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for(i = 0; i < n; i++){
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#if !defined(XCONJ)
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temp_r = alpha_r * x[ix] - alpha_i * x[ix+1];
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temp_i = alpha_r * x[ix+1] + alpha_i * x[ix];
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#else
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temp_r = alpha_r * x[ix] + alpha_i * x[ix+1];
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temp_i = alpha_r * x[ix+1] - alpha_i * x[ix];
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#endif
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va0 = VLSEV_FLOAT(&a_ptr[j], stride_a, gvl);
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va1 = VLSEV_FLOAT(&a_ptr[j+1], stride_a, gvl);
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#if !defined(CONJ)
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#if !defined(XCONJ)
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
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#else
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
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#endif
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#else
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#if !defined(XCONJ)
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFMACCVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFMACCVF_FLOAT(vy1, temp_i, va0, gvl);
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#else
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vy0 = VFMACCVF_FLOAT(vy0, temp_r, va0, gvl);
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vy0 = VFNMSACVF_FLOAT(vy0, temp_i, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_r, va1, gvl);
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vy1 = VFNMSACVF_FLOAT(vy1, temp_i, va0, gvl);
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#endif
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#endif
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a_ptr += lda2;
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ix += inc_x2;
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}
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VSSEV_FLOAT(&y[iy], stride_y, vy0, gvl);
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VSSEV_FLOAT(&y[iy+1], stride_y, vy1, gvl);
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}
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return(0);
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}
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