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/***************************************************************************
Copyright (c) 2017, The OpenBLAS Project
Copyright (c) 2022, Arm Ltd
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.
*****************************************************************************/
#include "common.h"
#include <arm_neon.h>
#if !defined(DSDOT)
#define RETURN_TYPE FLOAT
#else
#define RETURN_TYPE double
#endif
#if !defined(DOUBLE)
#if !defined(DSDOT)
#define DOT_MOD "s"
#define REG0 "wzr"
#define TMPX "s16"
#define TMPY "s24"
#define INC_SHIFT "2"
#define N_DIV_SHIFT "6"
#define N_REM_MASK "63"
#else
#define DOT_MOD "d"
#define REG0 "xzr"
#define TMPX "s16"
#define TMPX1 "d2"
#define TMPY "s24"
#define TMPY1 "d3"
#define INC_SHIFT "2"
#define N_DIV_SHIFT "4"
#define N_REM_MASK "15"
#endif
#else
#define DOT_MOD "d"
#define REG0 "xzr"
#define TMPX "d16"
#define TMPY "d24"
#define INC_SHIFT "3"
#define N_DIV_SHIFT "5"
#define N_REM_MASK "31"
#endif
#define OUT "%"DOT_MOD"[DOT_]"
#if !defined(DOUBLE)
#if !defined(DSDOT)
#define KERNEL_F1 \
" ldr "TMPX", [%[X_]] \n" \
" ldr "TMPY", [%[Y_]] \n" \
" add %[X_], %[X_], %[INCX_] \n" \
" add %[Y_], %[Y_], %[INCY_] \n" \
" fmadd "OUT", "TMPX", "TMPY", "OUT" \n"
#define KERNEL_F \
" ldp q16, q17, [%[X_]] \n" \
" ldp q24, q25, [%[Y_]] \n" \
" ldp q18, q19, [%[X_], #32] \n" \
" ldp q26, q27, [%[Y_], #32] \n" \
" fmla v0.4s, v16.4s, v24.4s \n" \
" fmla v1.4s, v17.4s, v25.4s \n" \
" ldp q20, q21, [%[X_], #64] \n" \
" ldp q28, q29, [%[Y_], #64] \n" \
" fmla v2.4s, v18.4s, v26.4s \n" \
" fmla v3.4s, v19.4s, v27.4s \n" \
" ldp q22, q23, [%[X_], #96] \n" \
" ldp q30, q31, [%[Y_], #96] \n" \
" add %[Y_], %[Y_], #128 \n" \
" add %[X_], %[X_], #128 \n" \
" fmla v4.4s, v20.4s, v28.4s \n" \
" fmla v5.4s, v21.4s, v29.4s \n" \
" PRFM PLDL1KEEP, [%[X_], #896] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
" fmla v6.4s, v22.4s, v30.4s \n" \
" fmla v7.4s, v23.4s, v31.4s \n" \
" ldp q16, q17, [%[X_]] \n" \
" ldp q24, q25, [%[Y_]] \n" \
" ldp q18, q19, [%[X_], #32] \n" \
" ldp q26, q27, [%[Y_], #32] \n" \
" fmla v0.4s, v16.4s, v24.4s \n" \
" fmla v1.4s, v17.4s, v25.4s \n" \
" ldp q20, q21, [%[X_], #64] \n" \
" ldp q28, q29, [%[Y_], #64] \n" \
" fmla v2.4s, v18.4s, v26.4s \n" \
" fmla v3.4s, v19.4s, v27.4s \n" \
" ldp q22, q23, [%[X_], #96] \n" \
" ldp q30, q31, [%[Y_], #96] \n" \
" add %[Y_], %[Y_], #128 \n" \
" add %[X_], %[X_], #128 \n" \
" fmla v4.4s, v20.4s, v28.4s \n" \
" fmla v5.4s, v21.4s, v29.4s \n" \
" PRFM PLDL1KEEP, [%[X_], #896] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
" fmla v6.4s, v22.4s, v30.4s \n" \
" fmla v7.4s, v23.4s, v31.4s \n"
#define KERNEL_F_FINALIZE \
" fadd v0.4s, v0.4s, v1.4s \n" \
" fadd v2.4s, v2.4s, v3.4s \n" \
" fadd v4.4s, v4.4s, v5.4s \n" \
" fadd v6.4s, v6.4s, v7.4s \n" \
" fadd v0.4s, v0.4s, v2.4s \n" \
" fadd v4.4s, v4.4s, v6.4s \n" \
" fadd v0.4s, v0.4s, v4.4s \n" \
" faddp v0.4s, v0.4s, v0.4s \n" \
" faddp v0.4s, v0.4s, v0.4s \n"
#else /* !defined(DSDOT) */
#define KERNEL_F1 \
" ldr "TMPX", [%[X_]] \n" \
" ldr "TMPY", [%[Y_]] \n" \
" add %[X_], %[X_], %[INCX_] \n" \
" add %[Y_], %[Y_], %[INCY_] \n" \
" fcvt "TMPX1", "TMPX" \n" \
" fcvt "TMPY1", "TMPY" \n" \
" fmul "TMPX1", "TMPX1", "TMPY1" \n" \
" fadd "OUT", "OUT", "TMPX1" \n"
#define KERNEL_F \
" ldp q18, q19, [%[X_]] \n" \
" ldp q26, q27, [%[Y_]] \n" \
" fcvtl v16.2d, v18.2s \n" \
" fcvtl2 v17.2d, v18.4s \n" \
" fcvtl v18.2d, v19.2s \n" \
" fcvtl2 v19.2d, v19.4s \n" \
" fcvtl v24.2d, v26.2s \n" \
" fcvtl2 v25.2d, v26.4s \n" \
" fcvtl v26.2d, v27.2s \n" \
" fcvtl2 v27.2d, v27.4s \n" \
" ldp q22, q23, [%[X_], #32] \n" \
" ldp q30, q31, [%[Y_], #32] \n" \
" fcvtl v20.2d, v22.2s \n" \
" fcvtl2 v21.2d, v22.4s \n" \
" fcvtl v22.2d, v23.2s \n" \
" fcvtl2 v23.2d, v23.4s \n" \
" fcvtl v28.2d, v30.2s \n" \
" fcvtl2 v29.2d, v30.4s \n" \
" fcvtl v30.2d, v31.2s \n" \
" fcvtl2 v31.2d, v31.4s \n" \
" PRFM PLDL1KEEP, [%[X_], #896] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
" fmla v0.2d, v16.2d, v24.2d \n" \
" fmla v1.2d, v17.2d, v25.2d \n" \
" fmla v2.2d, v18.2d, v26.2d \n" \
" fmla v3.2d, v19.2d, v27.2d \n" \
" add %[Y_], %[Y_], #64 \n" \
" add %[X_], %[X_], #64 \n" \
" fmla v4.2d, v20.2d, v28.2d \n" \
" fmla v5.2d, v21.2d, v29.2d \n" \
" fmla v6.2d, v22.2d, v30.2d \n" \
" fmla v7.2d, v23.2d, v31.2d \n"
#define KERNEL_F_FINALIZE \
" fadd v0.2d, v0.2d, v1.2d \n" \
" fadd v2.2d, v2.2d, v3.2d \n" \
" fadd v4.2d, v4.2d, v5.2d \n" \
" fadd v6.2d, v6.2d, v7.2d \n" \
" fadd v0.2d, v0.2d, v2.2d \n" \
" fadd v4.2d, v4.2d, v6.2d \n" \
" fadd v0.2d, v0.2d, v4.2d \n" \
" faddp "OUT", v0.2d \n"
#endif /* !defined(DSDOT) */
#else /* !defined(DOUBLE) */
#define KERNEL_F1 \
" ldr "TMPX", [%[X_]] \n" \
" ldr "TMPY", [%[Y_]] \n" \
" add %[X_], %[X_], %[INCX_] \n" \
" add %[Y_], %[Y_], %[INCY_] \n" \
" fmadd "OUT", "TMPX", "TMPY", "OUT" \n"
#define KERNEL_F \
" ldp q16, q17, [%[X_]] \n" \
" ldp q24, q25, [%[Y_]] \n" \
" ldp q18, q19, [%[X_], #32] \n" \
" ldp q26, q27, [%[Y_], #32] \n" \
" fmla v0.2d, v16.2d, v24.2d \n" \
" fmla v1.2d, v17.2d, v25.2d \n" \
" ldp q20, q21, [%[X_], #64] \n" \
" ldp q28, q29, [%[Y_], #64] \n" \
" fmla v2.2d, v18.2d, v26.2d \n" \
" fmla v3.2d, v19.2d, v27.2d \n" \
" ldp q22, q23, [%[X_], #96] \n" \
" ldp q30, q31, [%[Y_], #96] \n" \
" add %[Y_], %[Y_], #128 \n" \
" add %[X_], %[X_], #128 \n" \
" fmla v4.2d, v20.2d, v28.2d \n" \
" fmla v5.2d, v21.2d, v29.2d \n" \
" PRFM PLDL1KEEP, [%[X_], #896] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
" fmla v6.2d, v22.2d, v30.2d \n" \
" fmla v7.2d, v23.2d, v31.2d \n" \
" ldp q16, q17, [%[X_]] \n" \
" ldp q24, q25, [%[Y_]] \n" \
" ldp q18, q19, [%[X_], #32] \n" \
" ldp q26, q27, [%[Y_], #32] \n" \
" fmla v0.2d, v16.2d, v24.2d \n" \
" fmla v1.2d, v17.2d, v25.2d \n" \
" ldp q20, q21, [%[X_], #64] \n" \
" ldp q28, q29, [%[Y_], #64] \n" \
" fmla v2.2d, v18.2d, v26.2d \n" \
" fmla v3.2d, v19.2d, v27.2d \n" \
" ldp q22, q23, [%[X_], #96] \n" \
" ldp q30, q31, [%[Y_], #96] \n" \
" add %[Y_], %[Y_], #128 \n" \
" add %[X_], %[X_], #128 \n" \
" fmla v4.2d, v20.2d, v28.2d \n" \
" fmla v5.2d, v21.2d, v29.2d \n" \
" PRFM PLDL1KEEP, [%[X_], #896] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896] \n" \
" PRFM PLDL1KEEP, [%[X_], #896+64] \n" \
" PRFM PLDL1KEEP, [%[Y_], #896+64] \n" \
" fmla v6.2d, v22.2d, v30.2d \n" \
" fmla v7.2d, v23.2d, v31.2d \n"
#define KERNEL_F_FINALIZE \
" fadd v0.2d, v0.2d, v1.2d \n" \
" fadd v2.2d, v2.2d, v3.2d \n" \
" fadd v4.2d, v4.2d, v5.2d \n" \
" fadd v6.2d, v6.2d, v7.2d \n" \
" fadd v0.2d, v0.2d, v2.2d \n" \
" fadd v4.2d, v4.2d, v6.2d \n" \
" fadd v0.2d, v0.2d, v4.2d \n" \
" faddp "OUT", v0.2d \n"
#endif /* !defined(DOUBLE) */
static RETURN_TYPE dot_kernel_asimd(BLASLONG n, FLOAT *x, BLASLONG inc_x, FLOAT *y, BLASLONG inc_y)
{
RETURN_TYPE dot = 0.0;
BLASLONG j = 0;
__asm__ __volatile__ (
" fmov "OUT", "REG0" \n"
" fmov d1, xzr \n"
" fmov d2, xzr \n"
" fmov d3, xzr \n"
" fmov d4, xzr \n"
" fmov d5, xzr \n"
" fmov d6, xzr \n"
" fmov d7, xzr \n"
" cmp %[INCX_], #1 \n"
" bne 5f //dot_kernel_S_BEGIN \n"
" cmp %[INCY_], #1 \n"
" bne 5f //dot_kernel_S_BEGIN \n"
"1: //dot_kernel_F_BEGIN: \n"
" lsl %[INCX_], %[INCX_], "INC_SHIFT" \n"
" lsl %[INCY_], %[INCY_], "INC_SHIFT" \n"
" asr %[J_], %[N_], #"N_DIV_SHIFT" \n"
" cmp %[J_], xzr \n"
" beq 3f //dot_kernel_F1 \n"
" .align 5 \n"
"2: //dot_kernel_F: \n"
" "KERNEL_F" \n"
" subs %[J_], %[J_], #1 \n"
" bne 2b //dot_kernel_F \n"
" "KERNEL_F_FINALIZE" \n"
"3: //dot_kernel_F1: \n"
" ands %[J_], %[N_], #"N_REM_MASK" \n"
" ble 9f //dot_kernel_L999 \n"
"4: //dot_kernel_F10: \n"
" "KERNEL_F1" \n"
" subs %[J_], %[J_], #1 \n"
" bne 4b //dot_kernel_F10 \n"
" b 9f //dot_kernel_L999 \n"
"5: //dot_kernel_S_BEGIN: \n"
" lsl %[INCX_], %[INCX_], "INC_SHIFT" \n"
" lsl %[INCY_], %[INCY_], "INC_SHIFT" \n"
" asr %[J_], %[N_], #2 \n"
" cmp %[J_], xzr \n"
" ble 7f //dot_kernel_S1 \n"
"6: //dot_kernel_S4: \n"
" "KERNEL_F1" \n"
" "KERNEL_F1" \n"
" "KERNEL_F1" \n"
" "KERNEL_F1" \n"
" subs %[J_], %[J_], #1 \n"
" bne 6b //dot_kernel_S4 \n"
"7: //dot_kernel_S1: \n"
" ands %[J_], %[N_], #3 \n"
" ble 9f //dot_kernel_L999 \n"
"8: //dot_kernel_S10: \n"
" "KERNEL_F1" \n"
" subs %[J_], %[J_], #1 \n"
" bne 8b //dot_kernel_S10 \n"
"9: //dot_kernel_L999: \n"
: [DOT_] "=&w" (dot)
: [N_] "r" (n),
[X_] "r" (x),
[INCX_] "r" (inc_x),
[Y_] "r" (y),
[INCY_] "r" (inc_y),
[J_] "r" (j)
: "cc",
"memory",
"d1", "d2", "d3", "d4", "d5", "d6", "d7"
);
return dot;
}
|
