From: wernsaar Date: Wed, 6 Aug 2014 14:21:48 +0000 (+0200) Subject: added optimized sgemv_t kernel for nehalem X-Git-Tag: v0.2.11^2~2^2~22 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d945a2b06d131995d4184311d397b17a6f1c7afb;p=platform%2Fupstream%2Fopenblas.git added optimized sgemv_t kernel for nehalem --- diff --git a/kernel/x86_64/sgemv_t.c b/kernel/x86_64/sgemv_t.c index 566311a..47e749e 100644 --- a/kernel/x86_64/sgemv_t.c +++ b/kernel/x86_64/sgemv_t.c @@ -32,6 +32,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include "sgemv_t_microk_bulldozer-2.c" #elif defined(HASWELL) #include "sgemv_t_microk_haswell-2.c" +#elif defined(NEHALEM) +#include "sgemv_t_microk_nehalem-2.c" #endif /* diff --git a/kernel/x86_64/sgemv_t_microk_nehalem-2.c b/kernel/x86_64/sgemv_t_microk_nehalem-2.c new file mode 100644 index 0000000..e1f2b81 --- /dev/null +++ b/kernel/x86_64/sgemv_t_microk_nehalem-2.c @@ -0,0 +1,159 @@ +/*************************************************************************** +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 sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) __attribute__ ((noinline)); + +static void sgemv_kernel_16x4( BLASLONG n, float **ap, float *x, float *y) +{ + + BLASLONG register i = 0; + + __asm__ __volatile__ + ( + "xorps %%xmm0 , %%xmm0 \n\t" + "xorps %%xmm1 , %%xmm1 \n\t" + "xorps %%xmm2 , %%xmm2 \n\t" + "xorps %%xmm3 , %%xmm3 \n\t" + "xorps %%xmm4 , %%xmm4 \n\t" + "xorps %%xmm5 , %%xmm5 \n\t" + "xorps %%xmm6 , %%xmm6 \n\t" + "xorps %%xmm7 , %%xmm7 \n\t" + + ".align 16 \n\t" + ".L01LOOP%=: \n\t" + "prefetcht0 384(%2,%0,4) \n\t" + "movups (%2,%0,4), %%xmm12 \n\t" // 4 * x + "movups 16(%2,%0,4), %%xmm13 \n\t" // 4 * x + "movups (%4,%0,4), %%xmm8 \n\t" + "movups 32(%2,%0,4), %%xmm14 \n\t" // 4 * x + "movups 48(%2,%0,4), %%xmm15 \n\t" // 4 * x + + "prefetcht0 384(%4,%0,4) \n\t" + + "movups 16(%4,%0,4), %%xmm9 \n\t" + "movups 32(%4,%0,4), %%xmm10 \n\t" + "movups 48(%4,%0,4), %%xmm11 \n\t" + "mulps %%xmm12, %%xmm8 \n\t" + "addps %%xmm8 , %%xmm0 \n\t" + "mulps %%xmm13, %%xmm9 \n\t" + "addps %%xmm9 , %%xmm4 \n\t" + "movups (%5,%0,4), %%xmm8 \n\t" + "mulps %%xmm14, %%xmm10 \n\t" + "addps %%xmm10, %%xmm0 \n\t" + "mulps %%xmm15, %%xmm11 \n\t" + "addps %%xmm11, %%xmm4 \n\t" + + "prefetcht0 384(%5,%0,4) \n\t" + + "movups 16(%5,%0,4), %%xmm9 \n\t" + "movups 32(%5,%0,4), %%xmm10 \n\t" + "movups 48(%5,%0,4), %%xmm11 \n\t" + "mulps %%xmm12, %%xmm8 \n\t" + "addps %%xmm8 , %%xmm1 \n\t" + "mulps %%xmm13, %%xmm9 \n\t" + "addps %%xmm9 , %%xmm5 \n\t" + "movups (%6,%0,4), %%xmm8 \n\t" + "mulps %%xmm14, %%xmm10 \n\t" + "addps %%xmm10, %%xmm1 \n\t" + "mulps %%xmm15, %%xmm11 \n\t" + "addps %%xmm11, %%xmm5 \n\t" + + "prefetcht0 384(%6,%0,4) \n\t" + + "movups 16(%6,%0,4), %%xmm9 \n\t" + "movups 32(%6,%0,4), %%xmm10 \n\t" + "movups 48(%6,%0,4), %%xmm11 \n\t" + "mulps %%xmm12, %%xmm8 \n\t" + "addps %%xmm8 , %%xmm2 \n\t" + "mulps %%xmm13, %%xmm9 \n\t" + "addps %%xmm9 , %%xmm6 \n\t" + "movups (%7,%0,4), %%xmm8 \n\t" + "mulps %%xmm14, %%xmm10 \n\t" + "addps %%xmm10, %%xmm2 \n\t" + "mulps %%xmm15, %%xmm11 \n\t" + "addps %%xmm11, %%xmm6 \n\t" + + "prefetcht0 384(%7,%0,4) \n\t" + + "movups 16(%7,%0,4), %%xmm9 \n\t" + "movups 32(%7,%0,4), %%xmm10 \n\t" + "movups 48(%7,%0,4), %%xmm11 \n\t" + "mulps %%xmm12, %%xmm8 \n\t" + "addps %%xmm8 , %%xmm3 \n\t" + "mulps %%xmm13, %%xmm9 \n\t" + "addps %%xmm9 , %%xmm7 \n\t" + "mulps %%xmm14, %%xmm10 \n\t" + "addps %%xmm10, %%xmm3 \n\t" + "mulps %%xmm15, %%xmm11 \n\t" + "addps %%xmm11, %%xmm7 \n\t" + + "addq $16, %0 \n\t" + "subq $16, %1 \n\t" + "jnz .L01LOOP%= \n\t" + + "addps %%xmm0, %%xmm4 \n\t" + "addps %%xmm1, %%xmm5 \n\t" + "addps %%xmm2, %%xmm6 \n\t" + "addps %%xmm3, %%xmm7 \n\t" + + "haddps %%xmm4, %%xmm4 \n\t" + "haddps %%xmm5, %%xmm5 \n\t" + "haddps %%xmm6, %%xmm6 \n\t" + "haddps %%xmm7, %%xmm7 \n\t" + + "haddps %%xmm4, %%xmm4 \n\t" + "haddps %%xmm5, %%xmm5 \n\t" + "haddps %%xmm6, %%xmm6 \n\t" + "haddps %%xmm7, %%xmm7 \n\t" + + "movss %%xmm4, (%3) \n\t" + "movss %%xmm5, 4(%3) \n\t" + "movss %%xmm6, 8(%3) \n\t" + "movss %%xmm7, 12(%3) \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", + "%xmm0", "%xmm1", "%xmm2", "%xmm3", + "%xmm4", "%xmm5", "%xmm6", "%xmm7", + "%xmm8", "%xmm9", "%xmm10", "%xmm11", + "%xmm12", "%xmm13", "%xmm14", "%xmm15", + "memory" + ); + +} + +