THUNDERX2T99: Add optimized S/D/C/Z COPY Implementations
This commit is contained in:
Ashwin Sekhar T K
parent
e58233460a
commit
d09f88192c
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@ -5,6 +5,11 @@ DASUMKERNEL = dasum_thunderx2t99.c
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CASUMKERNEL = casum_thunderx2t99.c
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ZASUMKERNEL = zasum_thunderx2t99.c
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SCOPYKERNEL = copy_thunderx2t99.c
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DCOPYKERNEL = copy_thunderx2t99.c
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CCOPYKERNEL = copy_thunderx2t99.c
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ZCOPYKERNEL = copy_thunderx2t99.c
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SNRM2KERNEL = snrm2_thunderx2t99.c
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CNRM2KERNEL = cnrm2_thunderx2t99.S
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@ -0,0 +1,219 @@
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/***************************************************************************
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Copyright (c) 2017, The OpenBLAS Project
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. Neither the name of the OpenBLAS project nor the names of
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its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBLAS PROJECT OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include "common.h"
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#include <arm_neon.h>
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#define N "x0" /* vector length */
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#define X "x1" /* X vector address */
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#define INC_X "x2" /* X stride */
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#define Y "x3" /* Y vector address */
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#define INC_Y "x4" /* Y stride */
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#define J "x5" /* loop variable */
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/*******************************************************************************
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* Macro definitions
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*******************************************************************************/
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#if !defined(COMPLEX)
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#if !defined(DOUBLE)
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#define TMPF "s0"
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#define INC_SHIFT "2"
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#define N_DIV_SHIFT "2"
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#define N_REM_MASK "3"
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#else
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#define TMPF "d0"
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#define INC_SHIFT "3"
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#define N_DIV_SHIFT "1"
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#define N_REM_MASK "1"
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#endif
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#else
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#if !defined(DOUBLE)
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#define TMPF "d0"
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#define INC_SHIFT "3"
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#define N_DIV_SHIFT "1"
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#define N_REM_MASK "1"
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#else
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#define TMPF "q0"
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#define INC_SHIFT "4"
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#define N_DIV_SHIFT "0"
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#define N_REM_MASK "0"
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#endif
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#endif
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#define KERNEL_F1 \
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"ldr "TMPF", ["X"] \n" \
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"add "X", "X", "INC_X" \n" \
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"str "TMPF", ["Y"] \n" \
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"add "Y", "Y", "INC_Y" \n"
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#define KERNEL_F \
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"ldr q0, ["X"], #16 \n" \
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"str q0, ["Y"], #16 \n"
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#define INIT \
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"lsl "INC_X", "INC_X", #"INC_SHIFT" \n" \
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"lsl "INC_Y", "INC_Y", #"INC_SHIFT" \n"
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static int do_copy(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
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{
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if ( n < 0 ) return 0;
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__asm__ __volatile__ (
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" mov "N", %[N_] \n"
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" mov "X", %[X_] \n"
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" mov "INC_X", %[INCX_] \n"
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" mov "Y", %[Y_] \n"
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" mov "INC_Y", %[INCY_] \n"
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" cmp "N", xzr \n"
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" ble .Lcopy_kernel_L999 \n"
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" cmp "INC_X", #1 \n"
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" bne .Lcopy_kernel_S_BEGIN \n"
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" cmp "INC_Y", #1 \n"
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" bne .Lcopy_kernel_S_BEGIN \n"
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".Lcopy_kernel_F_BEGIN: \n"
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" "INIT" \n"
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" asr "J", "N", #"N_DIV_SHIFT" \n"
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" cmp "J", xzr \n"
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" beq .Lcopy_kernel_F1 \n"
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" .align 5 \n"
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".Lcopy_kernel_F: \n"
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" "KERNEL_F" \n"
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" subs "J", "J", #1 \n"
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" bne .Lcopy_kernel_F \n"
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".Lcopy_kernel_F1: \n"
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#if defined(COMPLEX) && defined(DOUBLE)
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" b .Lcopy_kernel_L999 \n"
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#else
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" ands "J", "N", #"N_REM_MASK" \n"
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" ble .Lcopy_kernel_L999 \n"
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#endif
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".Lcopy_kernel_F10: \n"
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" "KERNEL_F1" \n"
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" subs "J", "J", #1 \n"
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" bne .Lcopy_kernel_F10 \n"
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" b .Lcopy_kernel_L999 \n"
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".Lcopy_kernel_S_BEGIN: \n"
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" "INIT" \n"
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" asr "J", "N", #2 \n"
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" cmp "J", xzr \n"
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" ble .Lcopy_kernel_S1 \n"
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".Lcopy_kernel_S4: \n"
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" "KERNEL_F1" \n"
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" "KERNEL_F1" \n"
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" "KERNEL_F1" \n"
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" "KERNEL_F1" \n"
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" subs "J", "J", #1 \n"
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" bne .Lcopy_kernel_S4 \n"
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".Lcopy_kernel_S1: \n"
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" ands "J", "N", #3 \n"
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" ble .Lcopy_kernel_L999 \n"
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".Lcopy_kernel_S10: \n"
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" "KERNEL_F1" \n"
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" subs "J", "J", #1 \n"
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" bne .Lcopy_kernel_S10 \n"
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".Lcopy_kernel_L999: \n"
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:
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: [N_] "r" (n), //%1
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[X_] "r" (x), //%2
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[INCX_] "r" (inc_x), //%3
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[Y_] "r" (y), //%4
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[INCY_] "r" (inc_y) //%5
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: "cc",
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"memory",
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"x0", "x1", "x2", "x3", "x4", "x5",
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"d0"
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);
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return 0;
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}
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#if defined(SMP)
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static int copy_thread_function(BLASLONG n, BLASLONG dummy0,
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BLASLONG dummy1, FLOAT dummy2, FLOAT *x, BLASLONG inc_x, FLOAT *y,
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BLASLONG inc_y, FLOAT *dummy3, BLASLONG dummy4)
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{
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do_copy(n, x, inc_x, y, inc_y);
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return 0;
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}
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#endif
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int CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
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{
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#if defined(SMP)
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int nthreads;
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FLOAT dummy_alpha;
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#endif
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if (n <= 0) return 0;
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#if defined(SMP)
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nthreads = num_cpu_avail(1);
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if (inc_x == 0)
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nthreads = 1;
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if (n <= 10000)
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nthreads = 1;
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if (nthreads == 1) {
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do_copy(n, x, inc_x, y, inc_y);
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} else {
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int mode = 0;
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#if !defined(COMPLEX)
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mode = BLAS_REAL;
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#else
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mode = BLAS_COMPLEX;
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#endif
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#if !defined(DOUBLE)
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mode |= BLAS_SINGLE;
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#else
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mode |= BLAS_DOUBLE;
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#endif
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blas_level1_thread(mode, n, 0, 0, &dummy_alpha,
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x, inc_x, y, inc_y, NULL, 0,
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( void *)copy_thread_function, nthreads);
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}
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#else
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do_copy(n, x, inc_x, y, inc_y);
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#endif
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return 0;
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}
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