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| 1 | +/*************************************************************************** |
| 2 | +Copyright (c) 2025, The OpenBLAS Project |
| 3 | +All rights reserved. |
| 4 | +
|
| 5 | +Redistribution and use in source and binary forms, with or without |
| 6 | +modification, are permitted provided that the following conditions are |
| 7 | +met: |
| 8 | +
|
| 9 | + 1. Redistributions of source code must retain the above copyright |
| 10 | + notice, this list of conditions and the following disclaimer. |
| 11 | +
|
| 12 | + 2. Redistributions in binary form must reproduce the above copyright |
| 13 | + notice, this list of conditions and the following disclaimer in |
| 14 | + the documentation and/or other materials provided with the |
| 15 | + distribution. |
| 16 | + 3. Neither the name of the OpenBLAS project nor the names of |
| 17 | + its contributors may be used to endorse or promote products |
| 18 | + derived from this software without specific prior written |
| 19 | + permission. |
| 20 | +
|
| 21 | +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| 22 | +AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 23 | +IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 24 | +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 25 | +LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 26 | +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| 27 | +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 28 | +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 29 | +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
| 30 | +USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | +*****************************************************************************/ |
| 32 | + |
| 33 | +#include <arm_sve.h> |
| 34 | + |
| 35 | +#include "common.h" |
| 36 | + |
| 37 | +#ifdef DOUBLE |
| 38 | +#define SV_COUNT svcntd |
| 39 | +#define SV_TYPE svfloat64_t |
| 40 | +#define SV_TRUE svptrue_b64 |
| 41 | +#define SV_WHILE svwhilelt_b64_s64 |
| 42 | +#define SV_DUP svdup_f64 |
| 43 | +#else |
| 44 | +#define SV_COUNT svcntw |
| 45 | +#define SV_TYPE svfloat32_t |
| 46 | +#define SV_TRUE svptrue_b32 |
| 47 | +#define SV_WHILE svwhilelt_b32_s64 |
| 48 | +#define SV_DUP svdup_f32 |
| 49 | +#endif |
| 50 | + |
| 51 | +int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, |
| 52 | + BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, |
| 53 | + FLOAT *buffer) |
| 54 | +{ |
| 55 | + BLASLONG i; |
| 56 | + BLASLONG ix,iy; |
| 57 | + BLASLONG j; |
| 58 | + FLOAT *a_ptr; |
| 59 | + FLOAT temp; |
| 60 | + |
| 61 | + ix = 0; |
| 62 | + a_ptr = a; |
| 63 | + |
| 64 | + if (inc_y == 1) { |
| 65 | + BLASLONG width = (n + 3 - 1) / 3; |
| 66 | + |
| 67 | + FLOAT *a0_ptr = a_ptr + lda * width * 0; |
| 68 | + FLOAT *a1_ptr = a_ptr + lda * width * 1; |
| 69 | + FLOAT *a2_ptr = a_ptr + lda * width * 2; |
| 70 | + |
| 71 | + FLOAT *x0_ptr = x + inc_x * width * 0; |
| 72 | + FLOAT *x1_ptr = x + inc_x * width * 1; |
| 73 | + FLOAT *x2_ptr = x + inc_x * width * 2; |
| 74 | + |
| 75 | + for (j = 0; j < width; j++) { |
| 76 | + svbool_t pg00 = ((j + width * 0) < n) ? SV_TRUE() : svpfalse(); |
| 77 | + svbool_t pg10 = ((j + width * 0) < n) ? SV_TRUE() : svpfalse(); |
| 78 | + svbool_t pg20 = ((j + width * 0) < n) ? SV_TRUE() : svpfalse(); |
| 79 | + svbool_t pg30 = ((j + width * 0) < n) ? SV_TRUE() : svpfalse(); |
| 80 | + svbool_t pg01 = ((j + width * 1) < n) ? SV_TRUE() : svpfalse(); |
| 81 | + svbool_t pg11 = ((j + width * 1) < n) ? SV_TRUE() : svpfalse(); |
| 82 | + svbool_t pg21 = ((j + width * 1) < n) ? SV_TRUE() : svpfalse(); |
| 83 | + svbool_t pg31 = ((j + width * 1) < n) ? SV_TRUE() : svpfalse(); |
| 84 | + svbool_t pg02 = ((j + width * 2) < n) ? SV_TRUE() : svpfalse(); |
| 85 | + svbool_t pg12 = ((j + width * 2) < n) ? SV_TRUE() : svpfalse(); |
| 86 | + svbool_t pg22 = ((j + width * 2) < n) ? SV_TRUE() : svpfalse(); |
| 87 | + svbool_t pg32 = ((j + width * 2) < n) ? SV_TRUE() : svpfalse(); |
| 88 | + |
| 89 | + SV_TYPE temp0_vec = SV_DUP(alpha * x0_ptr[ix]); |
| 90 | + SV_TYPE temp1_vec = SV_DUP(alpha * x1_ptr[ix]); |
| 91 | + SV_TYPE temp2_vec = SV_DUP(alpha * x2_ptr[ix]); |
| 92 | + i = 0; |
| 93 | + BLASLONG sve_size = SV_COUNT(); |
| 94 | + while ((i + sve_size * 4 - 1) < m) { |
| 95 | + SV_TYPE y0_vec = svld1_vnum(SV_TRUE(), y + i, 0); |
| 96 | + SV_TYPE y1_vec = svld1_vnum(SV_TRUE(), y + i, 1); |
| 97 | + SV_TYPE y2_vec = svld1_vnum(SV_TRUE(), y + i, 2); |
| 98 | + SV_TYPE y3_vec = svld1_vnum(SV_TRUE(), y + i, 3); |
| 99 | + |
| 100 | + SV_TYPE a00_vec = svld1_vnum(pg00, a0_ptr + i, 0); |
| 101 | + SV_TYPE a10_vec = svld1_vnum(pg10, a0_ptr + i, 1); |
| 102 | + SV_TYPE a20_vec = svld1_vnum(pg20, a0_ptr + i, 2); |
| 103 | + SV_TYPE a30_vec = svld1_vnum(pg30, a0_ptr + i, 3); |
| 104 | + SV_TYPE a01_vec = svld1_vnum(pg01, a1_ptr + i, 0); |
| 105 | + SV_TYPE a11_vec = svld1_vnum(pg11, a1_ptr + i, 1); |
| 106 | + SV_TYPE a21_vec = svld1_vnum(pg21, a1_ptr + i, 2); |
| 107 | + SV_TYPE a31_vec = svld1_vnum(pg31, a1_ptr + i, 3); |
| 108 | + SV_TYPE a02_vec = svld1_vnum(pg02, a2_ptr + i, 0); |
| 109 | + SV_TYPE a12_vec = svld1_vnum(pg12, a2_ptr + i, 1); |
| 110 | + SV_TYPE a22_vec = svld1_vnum(pg22, a2_ptr + i, 2); |
| 111 | + SV_TYPE a32_vec = svld1_vnum(pg32, a2_ptr + i, 3); |
| 112 | + |
| 113 | + y0_vec = svmla_m(pg00, y0_vec, temp0_vec, a00_vec); |
| 114 | + y1_vec = svmla_m(pg10, y1_vec, temp0_vec, a10_vec); |
| 115 | + y2_vec = svmla_m(pg20, y2_vec, temp0_vec, a20_vec); |
| 116 | + y3_vec = svmla_m(pg30, y3_vec, temp0_vec, a30_vec); |
| 117 | + y0_vec = svmla_m(pg01, y0_vec, temp1_vec, a01_vec); |
| 118 | + y1_vec = svmla_m(pg11, y1_vec, temp1_vec, a11_vec); |
| 119 | + y2_vec = svmla_m(pg21, y2_vec, temp1_vec, a21_vec); |
| 120 | + y3_vec = svmla_m(pg31, y3_vec, temp1_vec, a31_vec); |
| 121 | + y0_vec = svmla_m(pg02, y0_vec, temp2_vec, a02_vec); |
| 122 | + y1_vec = svmla_m(pg12, y1_vec, temp2_vec, a12_vec); |
| 123 | + y2_vec = svmla_m(pg22, y2_vec, temp2_vec, a22_vec); |
| 124 | + y3_vec = svmla_m(pg32, y3_vec, temp2_vec, a32_vec); |
| 125 | + |
| 126 | + svst1_vnum(SV_TRUE(), y + i, 0, y0_vec); |
| 127 | + svst1_vnum(SV_TRUE(), y + i, 1, y1_vec); |
| 128 | + svst1_vnum(SV_TRUE(), y + i, 2, y2_vec); |
| 129 | + svst1_vnum(SV_TRUE(), y + i, 3, y3_vec); |
| 130 | + i += sve_size * 4; |
| 131 | + } |
| 132 | + |
| 133 | + if (i < m) { |
| 134 | + svbool_t pg0 = SV_WHILE(i + sve_size * 0, m); |
| 135 | + svbool_t pg1 = SV_WHILE(i + sve_size * 1, m); |
| 136 | + svbool_t pg2 = SV_WHILE(i + sve_size * 2, m); |
| 137 | + svbool_t pg3 = SV_WHILE(i + sve_size * 3, m); |
| 138 | + |
| 139 | + pg00 = svand_z(SV_TRUE(), pg0, pg00); |
| 140 | + pg10 = svand_z(SV_TRUE(), pg1, pg10); |
| 141 | + pg20 = svand_z(SV_TRUE(), pg2, pg20); |
| 142 | + pg30 = svand_z(SV_TRUE(), pg3, pg30); |
| 143 | + pg01 = svand_z(SV_TRUE(), pg0, pg01); |
| 144 | + pg11 = svand_z(SV_TRUE(), pg1, pg11); |
| 145 | + pg21 = svand_z(SV_TRUE(), pg2, pg21); |
| 146 | + pg31 = svand_z(SV_TRUE(), pg3, pg31); |
| 147 | + pg02 = svand_z(SV_TRUE(), pg0, pg02); |
| 148 | + pg12 = svand_z(SV_TRUE(), pg1, pg12); |
| 149 | + pg22 = svand_z(SV_TRUE(), pg2, pg22); |
| 150 | + pg32 = svand_z(SV_TRUE(), pg3, pg32); |
| 151 | + |
| 152 | + SV_TYPE y0_vec = svld1_vnum(pg0, y + i, 0); |
| 153 | + SV_TYPE y1_vec = svld1_vnum(pg1, y + i, 1); |
| 154 | + SV_TYPE y2_vec = svld1_vnum(pg2, y + i, 2); |
| 155 | + SV_TYPE y3_vec = svld1_vnum(pg3, y + i, 3); |
| 156 | + |
| 157 | + SV_TYPE a00_vec = svld1_vnum(pg00, a0_ptr + i, 0); |
| 158 | + SV_TYPE a10_vec = svld1_vnum(pg10, a0_ptr + i, 1); |
| 159 | + SV_TYPE a20_vec = svld1_vnum(pg20, a0_ptr + i, 2); |
| 160 | + SV_TYPE a30_vec = svld1_vnum(pg30, a0_ptr + i, 3); |
| 161 | + SV_TYPE a01_vec = svld1_vnum(pg01, a1_ptr + i, 0); |
| 162 | + SV_TYPE a11_vec = svld1_vnum(pg11, a1_ptr + i, 1); |
| 163 | + SV_TYPE a21_vec = svld1_vnum(pg21, a1_ptr + i, 2); |
| 164 | + SV_TYPE a31_vec = svld1_vnum(pg31, a1_ptr + i, 3); |
| 165 | + SV_TYPE a02_vec = svld1_vnum(pg02, a2_ptr + i, 0); |
| 166 | + SV_TYPE a12_vec = svld1_vnum(pg12, a2_ptr + i, 1); |
| 167 | + SV_TYPE a22_vec = svld1_vnum(pg22, a2_ptr + i, 2); |
| 168 | + SV_TYPE a32_vec = svld1_vnum(pg32, a2_ptr + i, 3); |
| 169 | + |
| 170 | + y0_vec = svmla_m(pg00, y0_vec, temp0_vec, a00_vec); |
| 171 | + y1_vec = svmla_m(pg10, y1_vec, temp0_vec, a10_vec); |
| 172 | + y2_vec = svmla_m(pg20, y2_vec, temp0_vec, a20_vec); |
| 173 | + y3_vec = svmla_m(pg30, y3_vec, temp0_vec, a30_vec); |
| 174 | + y0_vec = svmla_m(pg01, y0_vec, temp1_vec, a01_vec); |
| 175 | + y1_vec = svmla_m(pg11, y1_vec, temp1_vec, a11_vec); |
| 176 | + y2_vec = svmla_m(pg21, y2_vec, temp1_vec, a21_vec); |
| 177 | + y3_vec = svmla_m(pg31, y3_vec, temp1_vec, a31_vec); |
| 178 | + y0_vec = svmla_m(pg02, y0_vec, temp2_vec, a02_vec); |
| 179 | + y1_vec = svmla_m(pg12, y1_vec, temp2_vec, a12_vec); |
| 180 | + y2_vec = svmla_m(pg22, y2_vec, temp2_vec, a22_vec); |
| 181 | + y3_vec = svmla_m(pg32, y3_vec, temp2_vec, a32_vec); |
| 182 | + |
| 183 | + svst1_vnum(pg0, y + i, 0, y0_vec); |
| 184 | + svst1_vnum(pg1, y + i, 1, y1_vec); |
| 185 | + svst1_vnum(pg2, y + i, 2, y2_vec); |
| 186 | + svst1_vnum(pg3, y + i, 3, y3_vec); |
| 187 | + } |
| 188 | + a0_ptr += lda; |
| 189 | + a1_ptr += lda; |
| 190 | + a2_ptr += lda; |
| 191 | + ix += inc_x; |
| 192 | + } |
| 193 | + return(0); |
| 194 | + } |
| 195 | + |
| 196 | + for (j = 0; j < n; j++) { |
| 197 | + temp = alpha * x[ix]; |
| 198 | + iy = 0; |
| 199 | + for (i = 0; i < m; i++) { |
| 200 | + y[iy] += temp * a_ptr[i]; |
| 201 | + iy += inc_y; |
| 202 | + } |
| 203 | + a_ptr += lda; |
| 204 | + ix += inc_x; |
| 205 | + } |
| 206 | + return (0); |
| 207 | +} |
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