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Optimized dot kernels for CORTEXA57 

Co-Authored-By: Ralph Campbell <ralph.campbell@broadcom.com>
This commit is contained in:
Ashwin Sekhar T K 2015-10-06 14:16:04 +05:30
parent cd7684097c
commit 870c4d49c0
3 changed files with 533 additions and 1 deletions
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5
kernel/arm64/KERNEL.CORTEXA57
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@ -25,4 +25,7 @@ DCOPYKERNEL = copy.S
CCOPYKERNEL = copy.S
ZCOPYKERNEL = copy.S
DOTKERNEL = dot.S
DDOTKERNEL = dot.S
CDOTKERNEL = zdot.S
ZDOTKERNEL = zdot.S

227
kernel/arm64/dot.S Normal file
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@ -0,0 +1,227 @@
/*******************************************************************************
Copyright (c) 2015, 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 ASSEMBLER
#include "common.h"
#define N x0 /* vector length */
#define X x1 /* X vector address */
#define INC_X x2 /* X stride */
#define Y x3 /* Y vector address */
#define INC_Y x4 /* Y stride */
#define I x5 /* loop variable */
/*******************************************************************************
* Macro definitions
*******************************************************************************/
#if !defined(DOUBLE)
#if !defined(DSDOT)
#define REG0 wzr
#define DOTF s0
#else // DSDOT
#define REG0 xzr
#define DOTF d0
#endif
#define DOTI s1
#define TMPX s2
#define LD1VX {v2.s}[0]
#define TMPY s3
#define LD1VY {v3.s}[0]
#define TMPVY v3.s[0]
#define SZ 4
#else
#define REG0 xzr
#define DOTF d0
#define DOTI d1
#define TMPX d2
#define LD1VX {v2.d}[0]
#define TMPY d3
#define LD1VY {v3.d}[0]
#define TMPVY v3.d[0]
#define SZ 8
#endif
/******************************************************************************/
.macro KERNEL_F1
ldr TMPX, [X], #SZ
ldr TMPY, [Y], #SZ
#if !defined(DSDOT)
fmadd DOTF, TMPX, TMPY, DOTF
#else // DSDOT
fmul TMPX, TMPX, TMPY
fcvt d2, TMPX
fadd DOTF, DOTF, d2
#endif
.endm
.macro KERNEL_F4
#if !defined(DOUBLE)
ld1 {v2.4s}, [X], #16
ld1 {v3.4s}, [Y], #16
#if !defined(DSDOT)
fmla v0.4s, v2.4s, v3.4s
#else
fmul v2.4s, v2.4s, v3.4s
ext v3.16b, v2.16b, v2.16b, #8
fcvtl v2.2d, v2.2s
fcvtl v3.2d, v3.2s
fadd v0.2d, v0.2d, v2.2d
fadd v0.2d, v0.2d, v3.2d
#endif
#else //DOUBLE
ld1 {v2.2d, v3.2d}, [X], #32
ld1 {v4.2d, v5.2d}, [Y], #32
fmul v2.2d, v2.2d, v4.2d
fmul v3.2d, v3.2d, v5.2d
fadd v0.2d, v0.2d, v2.2d
fadd v0.2d, v0.2d, v3.2d
#endif
PRFM PLDL1KEEP, [X, #1024]
PRFM PLDL1KEEP, [Y, #1024]
.endm
.macro KERNEL_F4_FINALIZE
#if !defined(DOUBLE)
#if !defined(DSDOT)
ext v1.16b, v0.16b, v0.16b, #8
fadd v0.2s, v0.2s, v1.2s
faddp DOTF, v0.2s
#else
faddp DOTF, v0.2d
#endif
#else //DOUBLE
faddp DOTF, v0.2d
#endif
.endm
.macro INIT_S
#if !defined(DOUBLE)
lsl INC_X, INC_X, #2
lsl INC_Y, INC_Y, #2
#else
lsl INC_X, INC_X, #3
lsl INC_Y, INC_Y, #3
#endif
.endm
.macro KERNEL_S1
ld1 LD1VX, [X], INC_X
ld1 LD1VY, [Y], INC_Y
#if !defined(DSDOT)
fmadd DOTF, TMPX, TMPY, DOTF
#else // DSDOT
fmul TMPX, TMPX, TMPY
fcvt d2, TMPX
fadd DOTF, DOTF, d2
#endif
.endm
/*******************************************************************************
* End of macro definitions
*******************************************************************************/
PROLOGUE
fmov DOTF, REG0
#if defined(DOUBLE)
fmov d6, DOTF
#endif
cmp N, xzr
ble dot_kernel_L999
cmp INC_X, #1
bne dot_kernel_S_BEGIN
cmp INC_Y, #1
bne dot_kernel_S_BEGIN
dot_kernel_F_BEGIN:
asr I, N, #2
cmp I, xzr
beq dot_kernel_F1
dot_kernel_F4:
KERNEL_F4
subs I, I, #1
bne dot_kernel_F4
KERNEL_F4_FINALIZE
dot_kernel_F1:
ands I, N, #3
ble dot_kernel_L999
dot_kernel_F10:
KERNEL_F1
subs I, I, #1
bne dot_kernel_F10
ret
dot_kernel_S_BEGIN:
INIT_S
asr I, N, #2
cmp I, xzr
ble dot_kernel_S1
dot_kernel_S4:
KERNEL_S1
KERNEL_S1
KERNEL_S1
KERNEL_S1
subs I, I, #1
bne dot_kernel_S4
dot_kernel_S1:
ands I, N, #3
ble dot_kernel_L999
dot_kernel_S10:
KERNEL_S1
subs I, I, #1
bne dot_kernel_S10
dot_kernel_L999:
ret
EPILOGUE

302
kernel/arm64/zdot.S Normal file
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@ -0,0 +1,302 @@
/*******************************************************************************
Copyright (c) 2015, 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 ASSEMBLER
#include "common.h"
#define N x0 /* vector length */
#define X x1 /* X vector address */
#define INC_X x2 /* X stride */
#define Y x3 /* Y vector address */
#define INC_Y x4 /* Y stride */
#define I x5 /* loop variable */
/*******************************************************************************
* Macro definitions
*******************************************************************************/
#if !defined(DOUBLE)
#if !defined(DSDOT)
#define REG0 wzr
#define DOTF s0
#else // DSDOT
#define REG0 xzr
#define DOTF d0
#endif
#define DOTI s1
#define TMPX s2
#define LD1VX {v2.s}[0]
#define TMPY s3
#define LD1VY {v3.s}[0]
#define TMPVY v3.s[0]
#define SZ 4
#else
#define REG0 xzr
#define DOTF d0
#define DOTI d1
#define TMPX d2
#define LD1VX {v2.d}[0]
#define TMPY d3
#define LD1VY {v3.d}[0]
#define TMPVY v3.d[0]
#define SZ 8
#endif
/******************************************************************************/
.macro KERNEL_F1
#if !defined(DOUBLE)
ld1 {v2.2s}, [X], #8 // V2 = X[ix+1], X[ix]; X += 2
ld1 {v3.2s}, [Y], #8 // V3 = Y[iy+1], Y[iy]; Y += 2
ins v4.s[0], v2.s[1] // V4 = X[ix+1]
#if !defined(CONJ)
fmla DOTF, s2, v3.s[0] // dot[0] += X[ix] * Y[iy]
fmls DOTF, s4, v3.s[1] // dot[0] -= X[ix+1] * Y[iy+1]
fmla DOTI, s4, v3.s[0] // dot[1] += X[ix+1] * Y[iy]
fmla DOTI, s2, v3.s[1] // dot[1] += X[ix] * Y[iy+1]
#else
fmla DOTF, s2, v3.s[0] // dot[0] += X[ix] * Y[iy]
fmla DOTF, s4, v3.s[1] // dot[0] += X[ix+1] * Y[iy+1]
fmls DOTI, s4, v3.s[0] // dot[1] -= X[ix+1] * Y[iy]
fmla DOTI, s2, v3.s[1] // dot[1] += X[ix] * Y[iy+1]
#endif
#else // DOUBLE
ld1 {v2.2d}, [X], #16 // V2 = X[ix+1], X[ix]; X += 2
ld1 {v3.2d}, [Y], #16 // V3 = Y[iy+1], Y[iy]; Y += 2
ins v4.d[0], v2.d[1] // V4 = X[ix+1]
#if !defined(CONJ)
fmla DOTF, d2, v3.d[0] // dot[0] += X[ix] * Y[iy]
fmls DOTF, d4, v3.d[1] // dot[0] -= X[ix+1] * Y[iy+1]
fmla DOTI, d4, v3.d[0] // dot[1] += X[ix+1] * Y[iy]
fmla DOTI, d2, v3.d[1] // dot[1] += X[ix] * Y[iy+1]
#else
fmla DOTF, d2, v3.d[0] // dot[0] += X[ix] * Y[iy]
fmla DOTF, d4, v3.d[1] // dot[0] += X[ix+1] * Y[iy+1]
fmls DOTI, d4, v3.d[0] // dot[1] -= X[ix+1] * Y[iy]
fmla DOTI, d2, v3.d[1] // dot[1] += X[ix] * Y[iy+1]
#endif
#endif
.endm
.macro KERNEL_F4
#if !defined(DOUBLE)
ld2 {v2.4s, v3.4s}, [X], #32 // V2 = X[ix+1], X[ix]; X += 2
ld2 {v4.4s, v5.4s}, [Y], #32 // V2 = X[ix+1], X[ix]; X += 2
fmla v0.4s, v2.4s, v4.4s // dot[0] += X[ix] * Y[iy]
fmla v1.4s, v2.4s, v5.4s // dot[1] += X[ix] * Y[iy+1]
PRFM PLDL1KEEP, [X, #1024]
PRFM PLDL1KEEP, [Y, #1024]
#if !defined(CONJ)
fmls v0.4s, v3.4s, v5.4s // dot[0] -= X[ix+1] * Y[iy+1]
fmla v1.4s, v3.4s, v4.4s // dot[1] += X[ix+1] * Y[iy]
#else
fmla v0.4s, v3.4s, v5.4s // dot[0] += X[ix+1] * Y[iy+1]
fmls v1.4s, v3.4s, v4.4s // dot[1] -= X[ix+1] * Y[iy]
#endif
#else // DOUBLE
ld2 {v2.2d, v3.2d}, [X], #32 // V2 = X[ix+1], X[ix]; X += 2
ld2 {v16.2d, v17.2d}, [Y], #32
fmla v0.2d, v2.2d, v16.2d // dot[0] += X[ix] * Y[iy]
fmla v1.2d, v2.2d, v17.2d // dot[1] += X[ix] * Y[iy+1]
ld2 {v4.2d, v5.2d}, [X], #32
ld2 {v18.2d, v19.2d}, [Y], #32
fmla v0.2d, v4.2d, v18.2d // dot[1] += X[ix] * Y[iy+1]
fmla v1.2d, v4.2d, v19.2d // dot[1] += X[ix] * Y[iy+1]
PRFM PLDL1KEEP, [X, #1024]
PRFM PLDL1KEEP, [Y, #1024]
#if !defined(CONJ)
fmls v0.2d, v3.2d, v17.2d // dot[0] -= X[ix+1] * Y[iy+1]
fmls v20.2d, v5.2d, v19.2d // dot[0] -= X[ix+1] * Y[iy+1]
fmla v1.2d, v3.2d, v16.2d // dot[1] += X[ix+1] * Y[iy]
fmla v21.2d, v5.2d, v18.2d // dot[1] += X[ix+1] * Y[iy]
#else
fmla v0.2d, v3.2d, v17.2d // dot[0] += X[ix+1] * Y[iy+1]
fmla v20.2d, v5.2d, v19.2d // dot[0] += X[ix+1] * Y[iy+1]
fmls v1.2d, v3.2d, v16.2d // dot[1] -= X[ix+1] * Y[iy]
fmls v21.2d, v5.2d, v18.2d // dot[1] -= X[ix+1] * Y[iy]
#endif
#endif
.endm
.macro KERNEL_F4_FINALIZE
#if !defined(DOUBLE)
ext v2.16b, v0.16b, v0.16b, #8
fadd v0.2s, v0.2s, v2.2s
faddp DOTF, v0.2s
ext v3.16b, v1.16b, v1.16b, #8
fadd v1.2s, v1.2s, v3.2s
faddp DOTI, v1.2s
#else
fadd v0.2d, v0.2d, v20.2d
faddp DOTF, v0.2d
fadd v1.2d, v1.2d, v21.2d
faddp DOTI, v1.2d
#endif
.endm
.macro INIT_S
#if !defined(DOUBLE)
lsl INC_X, INC_X, #3
lsl INC_Y, INC_Y, #3
#else
lsl INC_X, INC_X, #4
lsl INC_Y, INC_Y, #4
#endif
.endm
.macro KERNEL_S1
#if !defined(DOUBLE)
ld1 {v2.2s}, [X], INC_X // V2 = X[ix+1], X[ix]; X += 2
ld1 {v3.2s}, [Y], INC_Y // V3 = Y[iy+1], Y[iy]; Y += 2
ext v4.8b, v2.8b, v2.8b, #4 // V4 = X[ix], X[ix+1]
#if !defined(CONJ)
fmla DOTF, s2, v3.s[0] // dot[0] += X[ix] * Y[iy]
fmls DOTF, s4, v3.s[1] // dot[0] -= X[ix+1] * Y[iy+1]
fmla DOTI, s4, v3.s[0] // dot[1] += X[ix+1] * Y[iy]
fmla DOTI, s2, v3.s[1] // dot[1] += X[ix] * Y[iy+1]
#else
fmla DOTF, s2, v3.s[0] // dot[0] += X[ix] * Y[iy]
fmla DOTF, s4, v3.s[1] // dot[0] += X[ix+1] * Y[iy+1]
fmls DOTI, s4, v3.s[0] // dot[1] -= X[ix+1] * Y[iy]
fmla DOTI, s2, v3.s[1] // dot[1] += X[ix] * Y[iy+1]
#endif
#else // DOUBLE
ld1 {v2.2d}, [X], INC_X // V2 = X[ix+1], X[ix]; X += 2
ld1 {v3.2d}, [Y], INC_Y // V3 = Y[iy+1], Y[iy]; Y += 2
ext v4.16b, v2.16b, v2.16b, #8 // V4 = X[ix], X[ix+1]
#if !defined(CONJ)
fmla DOTF, d2, v3.d[0] // dot[0] += X[ix] * Y[iy]
fmls DOTF, d4, v3.d[1] // dot[0] -= X[ix+1] * Y[iy+1]
fmla DOTI, d4, v3.d[0] // dot[1] += X[ix+1] * Y[iy]
fmla DOTI, d2, v3.d[1] // dot[1] += X[ix] * Y[iy+1]
#else
fmla DOTF, d2, v3.d[0] // dot[0] += X[ix] * Y[iy]
fmla DOTF, d4, v3.d[1] // dot[0] += X[ix+1] * Y[iy+1]
fmls DOTI, d4, v3.d[0] // dot[1] -= X[ix+1] * Y[iy]
fmla DOTI, d2, v3.d[1] // dot[1] += X[ix] * Y[iy+1]
#endif
#endif
.endm
/*******************************************************************************
* End of macro definitions
*******************************************************************************/
PROLOGUE
fmov DOTF, REG0
fmov DOTI, DOTF
#if !defined(DOUBLE)
fmov s20, DOTF
fmov s21, DOTI
#else
fmov d20, DOTF
fmov d21, DOTI
#endif
cmp N, xzr
ble dot_kernel_L999
cmp INC_X, #1
bne dot_kernel_S_BEGIN
cmp INC_Y, #1
bne dot_kernel_S_BEGIN
dot_kernel_F_BEGIN:
asr I, N, #2
cmp I, xzr
beq dot_kernel_F1
dot_kernel_F4:
KERNEL_F4
subs I, I, #1
bne dot_kernel_F4
KERNEL_F4_FINALIZE
dot_kernel_F1:
ands I, N, #3
ble dot_kernel_L999
dot_kernel_F10:
KERNEL_F1
subs I, I, #1
bne dot_kernel_F10
ret
dot_kernel_S_BEGIN:
INIT_S
asr I, N, #2
cmp I, xzr
ble dot_kernel_S1
dot_kernel_S4:
KERNEL_S1
KERNEL_S1
KERNEL_S1
KERNEL_S1
subs I, I, #1
bne dot_kernel_S4
dot_kernel_S1:
ands I, N, #3
ble dot_kernel_L999
dot_kernel_S10:
KERNEL_S1
subs I, I, #1
bne dot_kernel_S10
dot_kernel_L999:
ret
EPILOGUE