116 lines
4.2 KiB
C
116 lines
4.2 KiB
C
/***************************************************************************
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Copyright (c) 2023, 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 A00 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 <stdint.h>
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#include <stdio.h>
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#include <arm_sve.h>
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#include "common.h"
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#ifdef DOUBLE
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#define COUNT "cntd"
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#define SV_TYPE svfloat64x2_t
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#define SV_TRUE svptrue_b64
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#define SV_WHILE svwhilelt_b64
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#else
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#define COUNT "cntw"
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#define SV_TYPE svfloat32x2_t
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#define SV_TRUE svptrue_b32
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#define SV_WHILE svwhilelt_b32
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#endif
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#define INNER_COPY(pg, a_offset_inner, b_offset, lda, active) \
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a_vec = svld2(pg, a_offset_inner); \
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svst2(pg, b_offset, a_vec); \
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a_offset_inner += lda * 2; \
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b_offset += active * 2;
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int CNAME(BLASLONG m, BLASLONG n, IFLOAT *a, BLASLONG lda, IFLOAT *b){
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uint64_t sve_size = svcntw();
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asm(COUNT" %[SIZE_]" : [SIZE_] "=r" (sve_size) : : );
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IFLOAT *a_offset, *a_offset_inner, *b_offset;
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a_offset = a;
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b_offset = b;
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SV_TYPE a_vec;
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svbool_t pg_true = SV_TRUE();
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BLASLONG single_vectors_n = n & -sve_size;
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for (BLASLONG j = 0; j < single_vectors_n; j += sve_size) {
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a_offset_inner = a_offset;
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svbool_t pg = pg_true;
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uint64_t active = sve_size;
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uint64_t i_cnt = m >> 2;
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while (i_cnt--) {
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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}
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if (m & 2) {
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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}
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if (m & 1) {
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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}
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a_offset += sve_size * 2;
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}
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BLASLONG remaining_n = n - single_vectors_n;
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if (remaining_n) {
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a_offset_inner = a_offset;
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svbool_t pg = SV_WHILE((uint64_t)0L, (uint64_t)remaining_n);
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uint64_t active = remaining_n;
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uint64_t i_cnt = m >> 2;
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while (i_cnt--) {
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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}
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if (m & 2) {
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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}
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if (m & 1) {
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INNER_COPY(pg, a_offset_inner, b_offset, lda, active);
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}
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}
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return 0;
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}
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