added optimized sdot-kernel for steamroller

diff --git a/kernel/x86_64/sdot.c b/kernel/x86_64/sdot.c
index edce81b..28dcd86 100644 (file)
--- 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 (file)
index 0000000..6b8b256
--- /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"
+       );
+
+
+} 
+
+