From 9d2ace8bac646d423528b307528043446a9c98ee Mon Sep 17 00:00:00 2001 From: wernsaar Date: Sun, 24 Aug 2014 10:57:12 +0200 Subject: [PATCH] added optimized daxpy kernel for bulldozer --- kernel/x86_64/daxpy.c | 2 + kernel/x86_64/daxpy_microk_bulldozer-2.c | 82 ++++++++++++++++++++++++ 2 files changed, 84 insertions(+) create mode 100644 kernel/x86_64/daxpy_microk_bulldozer-2.c diff --git a/kernel/x86_64/daxpy.c b/kernel/x86_64/daxpy.c index feda045d0..83754cbd3 100644 --- a/kernel/x86_64/daxpy.c +++ b/kernel/x86_64/daxpy.c @@ -31,6 +31,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #if defined(NEHALEM) #include "daxpy_microk_nehalem-2.c" +#elif defined(BULLDOZER) +#include "daxpy_microk_bulldozer-2.c" #endif diff --git a/kernel/x86_64/daxpy_microk_bulldozer-2.c b/kernel/x86_64/daxpy_microk_bulldozer-2.c new file mode 100644 index 000000000..b1ef84a18 --- /dev/null +++ b/kernel/x86_64/daxpy_microk_bulldozer-2.c @@ -0,0 +1,82 @@ +/*************************************************************************** +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_8 1 +static void daxpy_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y , FLOAT *alpha) __attribute__ ((noinline)); + +static void daxpy_kernel_8( BLASLONG n, FLOAT *x, FLOAT *y, FLOAT *alpha) +{ + + + BLASLONG register i = 0; + + __asm__ __volatile__ + ( + "vmovddup (%4), %%xmm0 \n\t" // alpha + + ".align 16 \n\t" + ".L01LOOP%=: \n\t" + + "prefetcht0 768(%3,%0,8) \n\t" + "vmovups (%2,%0,8), %%xmm12 \n\t" // 2 * x + "vfmaddpd (%3,%0,8), %%xmm0 , %%xmm12, %%xmm8 \n\t" // y += alpha * x + "vmovups 16(%2,%0,8), %%xmm13 \n\t" // 2 * x + ".align 2 \n\t" + "vmovups %%xmm8 , (%3,%0,8) \n\t" + "vfmaddpd 16(%3,%0,8), %%xmm0 , %%xmm13, %%xmm9 \n\t" // y += alpha * x + ".align 2 \n\t" + "vmovups 32(%2,%0,8), %%xmm14 \n\t" // 2 * x + "vmovups %%xmm9 , 16(%3,%0,8) \n\t" + "prefetcht0 768(%2,%0,8) \n\t" + ".align 2 \n\t" + "vfmaddpd 32(%3,%0,8), %%xmm0 , %%xmm14, %%xmm10 \n\t" // y += alpha * x + "vmovups 48(%2,%0,8), %%xmm15 \n\t" // 2 * x + "vmovups %%xmm10, 32(%3,%0,8) \n\t" + "vfmaddpd 48(%3,%0,8), %%xmm0 , %%xmm15, %%xmm11 \n\t" // y += alpha * x + "vmovups %%xmm11, 48(%3,%0,8) \n\t" + + "addq $8 , %0 \n\t" + "subq $8 , %1 \n\t" + "jnz .L01LOOP%= \n\t" + + : + : + "r" (i), // 0 + "r" (n), // 1 + "r" (x), // 2 + "r" (y), // 3 + "r" (alpha) // 4 + : "cc", + "%xmm0", + "%xmm8", "%xmm9", "%xmm10", "%xmm11", + "%xmm12", "%xmm13", "%xmm14", "%xmm15", + "memory" + ); + +} + +