From 166d76e864565dd69909f64553e88bcab6977907 Mon Sep 17 00:00:00 2001 From: Werner Saar Date: Sat, 11 Apr 2015 08:48:18 +0200 Subject: [PATCH] added optimized sdot-kernel for steamroller --- kernel/x86_64/sdot.c | 4 +- kernel/x86_64/sdot_microk_steamroller-2.c | 163 ++++++++++++++++++++++ 2 files changed, 166 insertions(+), 1 deletion(-) create mode 100644 kernel/x86_64/sdot_microk_steamroller-2.c diff --git a/kernel/x86_64/sdot.c b/kernel/x86_64/sdot.c index edce81b89..28dcd8601 100644 --- a/kernel/x86_64/sdot.c +++ b/kernel/x86_64/sdot.c @@ -28,8 +28,10 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "common.h" -#if defined(BULLDOZER) || defined(PILEDRIVER) || defined(STEAMROLLER) +#if defined(BULLDOZER) || defined(PILEDRIVER) #include "sdot_microk_bulldozer-2.c" +#elif defined(STEAMROLLER) +#include "sdot_microk_steamroller-2.c" #elif defined(NEHALEM) #include "sdot_microk_nehalem-2.c" #elif defined(HASWELL) diff --git a/kernel/x86_64/sdot_microk_steamroller-2.c b/kernel/x86_64/sdot_microk_steamroller-2.c new file mode 100644 index 000000000..6b8b2566b --- /dev/null +++ b/kernel/x86_64/sdot_microk_steamroller-2.c @@ -0,0 +1,163 @@ +/*************************************************************************** +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_16 1 +static void sdot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *dot) __attribute__ ((noinline)); + +static void sdot_kernel_16( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *dot) +{ + + + BLASLONG register i = 0; + + + if ( n < 4096 ) + { + + __asm__ __volatile__ + ( + "vxorps %%xmm4, %%xmm4, %%xmm4 \n\t" + "vxorps %%xmm5, %%xmm5, %%xmm5 \n\t" + "vxorps %%xmm6, %%xmm6, %%xmm6 \n\t" + "vxorps %%xmm7, %%xmm7, %%xmm7 \n\t" + + ".align 16 \n\t" + "1: \n\t" + "vmovups (%2,%0,4), %%xmm12 \n\t" // 4 * x + "vmovups 16(%2,%0,4), %%xmm13 \n\t" // 4 * x + "vmovups 32(%2,%0,4), %%xmm14 \n\t" // 4 * x + "vmovups 48(%2,%0,4), %%xmm15 \n\t" // 4 * x + + "vfmadd231ps (%3,%0,4), %%xmm12, %%xmm4 \n\t" // 4 * y + "vfmadd231ps 16(%3,%0,4), %%xmm13, %%xmm5 \n\t" // 4 * y + "vmovups 64(%2,%0,4), %%xmm0 \n\t" // 4 * x + "vmovups 80(%2,%0,4), %%xmm1 \n\t" // 4 * x + "vfmadd231ps 32(%3,%0,4), %%xmm14, %%xmm6 \n\t" // 4 * y + "vfmadd231ps 48(%3,%0,4), %%xmm15, %%xmm7 \n\t" // 4 * y + + "vmovups 96(%2,%0,4), %%xmm2 \n\t" // 4 * x + "vmovups 112(%2,%0,4), %%xmm3 \n\t" // 4 * x + + "vfmadd231ps 64(%3,%0,4), %%xmm0 , %%xmm4 \n\t" // 4 * y + "vfmadd231ps 80(%3,%0,4), %%xmm1 , %%xmm5 \n\t" // 4 * y + "vfmadd231ps 96(%3,%0,4), %%xmm2 , %%xmm6 \n\t" // 4 * y + "vfmadd231ps 112(%3,%0,4), %%xmm3 , %%xmm7 \n\t" // 4 * y + + "addq $32, %0 \n\t" + "subq $32, %1 \n\t" + "jnz 1b \n\t" + + "vaddps %%xmm4, %%xmm5, %%xmm4 \n\t" + "vaddps %%xmm6, %%xmm7, %%xmm6 \n\t" + "vaddps %%xmm4, %%xmm6, %%xmm4 \n\t" + + "vhaddps %%xmm4, %%xmm4, %%xmm4 \n\t" + "vhaddps %%xmm4, %%xmm4, %%xmm4 \n\t" + + "vmovss %%xmm4, (%4) \n\t" + + : + : + "r" (i), // 0 + "r" (n), // 1 + "r" (x), // 2 + "r" (y), // 3 + "r" (dot) // 4 + : "cc", + "%xmm0", "%xmm1", "%xmm2", "%xmm3", + "%xmm4", "%xmm5", "%xmm6", "%xmm7", + "%xmm12", "%xmm13", "%xmm14", "%xmm15", + "memory" + ); + return; + + } + + __asm__ __volatile__ + ( + "vxorps %%xmm4, %%xmm4, %%xmm4 \n\t" + "vxorps %%xmm5, %%xmm5, %%xmm5 \n\t" + "vxorps %%xmm6, %%xmm6, %%xmm6 \n\t" + "vxorps %%xmm7, %%xmm7, %%xmm7 \n\t" + + ".align 16 \n\t" + "1: \n\t" + "prefetcht0 512(%2,%0,4) \n\t" + "vmovups (%2,%0,4), %%xmm12 \n\t" // 4 * x + "vmovups 16(%2,%0,4), %%xmm13 \n\t" // 4 * x + "vmovups 32(%2,%0,4), %%xmm14 \n\t" // 4 * x + "vmovups 48(%2,%0,4), %%xmm15 \n\t" // 4 * x + + "prefetcht0 512(%3,%0,4) \n\t" + "vfmadd231ps (%3,%0,4), %%xmm12, %%xmm4 \n\t" // 4 * y + "vfmadd231ps 16(%3,%0,4), %%xmm13, %%xmm5 \n\t" // 4 * y + "prefetcht0 576(%2,%0,4) \n\t" + "vmovups 64(%2,%0,4), %%xmm0 \n\t" // 4 * x + "vmovups 80(%2,%0,4), %%xmm1 \n\t" // 4 * x + "prefetcht0 576(%3,%0,4) \n\t" + "vfmadd231ps 32(%3,%0,4), %%xmm14, %%xmm6 \n\t" // 4 * y + "vfmadd231ps 48(%3,%0,4), %%xmm15, %%xmm7 \n\t" // 4 * y + + "vmovups 96(%2,%0,4), %%xmm2 \n\t" // 4 * x + "vmovups 112(%2,%0,4), %%xmm3 \n\t" // 4 * x + + "vfmadd231ps 64(%3,%0,4), %%xmm0 , %%xmm4 \n\t" // 4 * y + "vfmadd231ps 80(%3,%0,4), %%xmm1 , %%xmm5 \n\t" // 4 * y + "vfmadd231ps 96(%3,%0,4), %%xmm2 , %%xmm6 \n\t" // 4 * y + "vfmadd231ps 112(%3,%0,4), %%xmm3 , %%xmm7 \n\t" // 4 * y + + "addq $32, %0 \n\t" + "subq $32, %1 \n\t" + "jnz 1b \n\t" + + "vaddps %%xmm4, %%xmm5, %%xmm4 \n\t" + "vaddps %%xmm6, %%xmm7, %%xmm6 \n\t" + "vaddps %%xmm4, %%xmm6, %%xmm4 \n\t" + + "vhaddps %%xmm4, %%xmm4, %%xmm4 \n\t" + "vhaddps %%xmm4, %%xmm4, %%xmm4 \n\t" + + "vmovss %%xmm4, (%4) \n\t" + + : + : + "r" (i), // 0 + "r" (n), // 1 + "r" (x), // 2 + "r" (y), // 3 + "r" (dot) // 4 + : "cc", + "%xmm0", "%xmm1", "%xmm2", "%xmm3", + "%xmm4", "%xmm5", "%xmm6", "%xmm7", + "%xmm12", "%xmm13", "%xmm14", "%xmm15", + "memory" + ); + + +} + +