--- /dev/null
+/***************************************************************************
+Copyright (c) 2014, The OpenBLAS Project
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in
+the documentation and/or other materials provided with the
+distribution.
+3. Neither the name of the OpenBLAS project nor the names of
+its contributors may be used to endorse or promote products
+derived from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+
+#include "common.h"
+
+#if defined(HASWELL)
+#include "dgemv_t_microk_haswell-2.c"
+#endif
+
+#define NBMAX 2048
+
+#ifndef HAVE_KERNEL_16x4
+
+static void dgemv_kernel_16x4(BLASLONG n, FLOAT **ap, FLOAT *x, FLOAT *y)
+{
+ BLASLONG i;
+ FLOAT *a0,*a1,*a2,*a3;
+ a0 = ap[0];
+ a1 = ap[1];
+ a2 = ap[2];
+ a3 = ap[3];
+ FLOAT temp0 = 0.0;
+ FLOAT temp1 = 0.0;
+ FLOAT temp2 = 0.0;
+ FLOAT temp3 = 0.0;
+
+ for ( i=0; i< n; i+=4 )
+ {
+ temp0 += a0[i]*x[i] + a0[i+1]*x[i+1] + a0[i+2]*x[i+2] + a0[i+3]*x[i+3];
+ temp1 += a1[i]*x[i] + a1[i+1]*x[i+1] + a1[i+2]*x[i+2] + a1[i+3]*x[i+3];
+ temp2 += a2[i]*x[i] + a2[i+1]*x[i+1] + a2[i+2]*x[i+2] + a2[i+3]*x[i+3];
+ temp3 += a3[i]*x[i] + a3[i+1]*x[i+1] + a3[i+2]*x[i+2] + a3[i+3]*x[i+3];
+ }
+ y[0] = temp0;
+ y[1] = temp1;
+ y[2] = temp2;
+ y[3] = temp3;
+}
+
+#endif
+
+static void dgemv_kernel_16x1(BLASLONG n, FLOAT *ap, FLOAT *x, FLOAT *y)
+{
+ BLASLONG i;
+ FLOAT *a0;
+ a0 = ap;
+ FLOAT temp = 0.0;
+
+ for ( i=0; i< n; i+=4 )
+ {
+ temp += a0[i]*x[i] + a0[i+1]*x[i+1] + a0[i+2]*x[i+2] + a0[i+3]*x[i+3];
+ }
+ *y = temp;
+}
+
+static void copy_x(BLASLONG n, FLOAT *src, FLOAT *dest, BLASLONG inc_src)
+{
+ BLASLONG i;
+ for ( i=0; i<n; i++ )
+ {
+ *dest = *src;
+ dest++;
+ src += inc_src;
+ }
+}
+
+
+int CNAME(BLASLONG m, BLASLONG n, BLASLONG dummy1, FLOAT alpha, FLOAT *a, BLASLONG lda, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y, FLOAT *buffer)
+{
+ BLASLONG i;
+ BLASLONG j;
+ FLOAT *a_ptr;
+ FLOAT *x_ptr;
+ FLOAT *y_ptr;
+ FLOAT *ap[4];
+ BLASLONG n1;
+ BLASLONG m1;
+ BLASLONG m2;
+ BLASLONG n2;
+ FLOAT ybuffer[4],*xbuffer;
+
+ xbuffer = buffer;
+
+ n1 = n / 4 ;
+ n2 = n % 4 ;
+
+ m1 = m - ( m % 16 );
+ m2 = (m % NBMAX) - (m % 16) ;
+
+
+ BLASLONG NB = NBMAX;
+
+ while ( NB == NBMAX )
+ {
+
+ m1 -= NB;
+ if ( m1 < 0)
+ {
+ if ( m2 == 0 ) break;
+ NB = m2;
+ }
+
+ y_ptr = y;
+ a_ptr = a;
+ x_ptr = x;
+ copy_x(NB,x_ptr,xbuffer,inc_x);
+ for( i = 0; i < n1 ; i++)
+ {
+ ap[0] = a_ptr;
+ ap[1] = a_ptr + lda;
+ ap[2] = ap[1] + lda;
+ ap[3] = ap[2] + lda;
+ dgemv_kernel_16x4(NB,ap,xbuffer,ybuffer);
+ a_ptr += 4 * lda;
+ *y_ptr += ybuffer[0]*alpha;
+ y_ptr += inc_y;
+ *y_ptr += ybuffer[1]*alpha;
+ y_ptr += inc_y;
+ *y_ptr += ybuffer[2]*alpha;
+ y_ptr += inc_y;
+ *y_ptr += ybuffer[3]*alpha;
+ y_ptr += inc_y;
+ }
+
+ for( i = 0; i < n2 ; i++)
+ {
+ dgemv_kernel_16x1(NB,a_ptr,xbuffer,ybuffer);
+ a_ptr += 1 * lda;
+ *y_ptr += ybuffer[0]*alpha;
+ y_ptr += inc_y;
+
+ }
+ a += NB;
+ x += NB * inc_x;
+ }
+
+ BLASLONG m3 = m % 16;
+ if ( m3 == 0 ) return(0);
+ x_ptr = x;
+ for ( i=0; i< m3; i++ )
+ {
+ xbuffer[i] = *x_ptr;
+ x_ptr += inc_x;
+ }
+ j=0;
+ a_ptr = a;
+ y_ptr = y;
+ while ( j < n)
+ {
+ FLOAT temp = 0.0;
+ for( i = 0; i < m3; i++ )
+ {
+ temp += a_ptr[i] * xbuffer[i];
+ }
+ a_ptr += lda;
+ y_ptr[0] += alpha * temp;
+ y_ptr += inc_y;
+ j++;
+ }
+ return(0);
+}
+
+
--- /dev/null
+/***************************************************************************
+Copyright (c) 2014, The OpenBLAS Project
+All rights reserved.
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+1. Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in
+the documentation and/or other materials provided with the
+distribution.
+3. Neither the name of the OpenBLAS project nor the names of
+its contributors may be used to endorse or promote products
+derived from this software without specific prior written permission.
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*****************************************************************************/
+
+#define HAVE_KERNEL_16x4 1
+static void dgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) __attribute__ ((noinline));
+
+static void dgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y)
+{
+
+ BLASLONG register i = 0;
+
+ __asm__ __volatile__
+ (
+ "vzeroupper \n\t"
+ "vxorpd %%ymm4 , %%ymm4, %%ymm4 \n\t"
+ "vxorpd %%ymm5 , %%ymm5, %%ymm5 \n\t"
+ "vxorpd %%ymm6 , %%ymm6, %%ymm6 \n\t"
+ "vxorpd %%ymm7 , %%ymm7, %%ymm7 \n\t"
+
+ ".align 16 \n\t"
+ ".L01LOOP%=: \n\t"
+ "prefetcht0 384(%2,%0,8) \n\t"
+ "vmovups (%2,%0,8), %%ymm12 \n\t" // 4 * x
+ "vmovups 32(%2,%0,8), %%ymm13 \n\t" // 4 * x
+
+ "prefetcht0 384(%4,%0,8) \n\t"
+ "vfmadd231pd (%4,%0,8), %%ymm12, %%ymm4 \n\t"
+ "vfmadd231pd (%5,%0,8), %%ymm12, %%ymm5 \n\t"
+ "prefetcht0 384(%5,%0,8) \n\t"
+ "vfmadd231pd 32(%4,%0,8), %%ymm13, %%ymm4 \n\t"
+ "vfmadd231pd 32(%5,%0,8), %%ymm13, %%ymm5 \n\t"
+ "prefetcht0 384(%6,%0,8) \n\t"
+ "vfmadd231pd (%6,%0,8), %%ymm12, %%ymm6 \n\t"
+ "vfmadd231pd (%7,%0,8), %%ymm12, %%ymm7 \n\t"
+ "prefetcht0 384(%7,%0,8) \n\t"
+ "vfmadd231pd 32(%6,%0,8), %%ymm13, %%ymm6 \n\t"
+ "vfmadd231pd 32(%7,%0,8), %%ymm13, %%ymm7 \n\t"
+
+ "addq $8 , %0 \n\t"
+ "subq $8 , %1 \n\t"
+ "jnz .L01LOOP%= \n\t"
+
+ "vextractf128 $1 , %%ymm4, %%xmm12 \n\t"
+ "vextractf128 $1 , %%ymm5, %%xmm13 \n\t"
+ "vextractf128 $1 , %%ymm6, %%xmm14 \n\t"
+ "vextractf128 $1 , %%ymm7, %%xmm15 \n\t"
+
+ "vaddpd %%xmm4, %%xmm12, %%xmm4 \n\t"
+ "vaddpd %%xmm5, %%xmm13, %%xmm5 \n\t"
+ "vaddpd %%xmm6, %%xmm14, %%xmm6 \n\t"
+ "vaddpd %%xmm7, %%xmm15, %%xmm7 \n\t"
+
+ "vhaddpd %%xmm4, %%xmm4, %%xmm4 \n\t"
+ "vhaddpd %%xmm5, %%xmm5, %%xmm5 \n\t"
+ "vhaddpd %%xmm6, %%xmm6, %%xmm6 \n\t"
+ "vhaddpd %%xmm7, %%xmm7, %%xmm7 \n\t"
+
+ "vmovsd %%xmm4, (%3) \n\t"
+ "vmovsd %%xmm5, 8(%3) \n\t"
+ "vmovsd %%xmm6, 16(%3) \n\t"
+ "vmovsd %%xmm7, 24(%3) \n\t"
+
+ "vzeroupper \n\t"
+
+ :
+ :
+ "r" (i), // 0
+ "r" (n), // 1
+ "r" (x), // 2
+ "r" (y), // 3
+ "r" (ap[0]), // 4
+ "r" (ap[1]), // 5
+ "r" (ap[2]), // 6
+ "r" (ap[3]) // 7
+ : "cc",
+ "%xmm4", "%xmm5", "%xmm6", "%xmm7",
+ "%xmm12", "%xmm13", "%xmm14", "%xmm15",
+ "memory"
+ );
+
+}
+
+
projects / platform / upstream / openblas.git / commitdiff