You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
228 lines
5.4 KiB
228 lines
5.4 KiB
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
; Copyright(c) 2011-2014 Intel Corporation All rights reserved.
|
|
;
|
|
; Redistribution and use in source and binary forms, with or without
|
|
; modification, are permitted provided that the following conditions
|
|
; are met:
|
|
; * Redistributions of source code must retain the above copyright
|
|
; notice, this list of conditions and the following disclaimer.
|
|
; * 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.
|
|
; * Neither the name of Intel Corporation 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 COPYRIGHT
|
|
; OWNER 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.
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
;;;
|
|
;;; gf_vect_dot_prod_avx2(len, vec, *g_tbls, **buffs, *dest);
|
|
;;;
|
|
;;; Author: Gregory Tucker
|
|
|
|
%ifidn __OUTPUT_FORMAT__, macho64
|
|
%define GF_VECT_DOT_PROD_AVX2 _gf_vect_dot_prod_avx2
|
|
%else
|
|
%define GF_VECT_DOT_PROD_AVX2 gf_vect_dot_prod_avx2
|
|
%endif
|
|
|
|
%ifidn __OUTPUT_FORMAT__, elf64
|
|
%define arg0 rdi
|
|
%define arg1 rsi
|
|
%define arg2 rdx
|
|
%define arg3 rcx
|
|
%define arg4 r8
|
|
%define arg5 r9
|
|
|
|
%define tmp r11
|
|
%define tmp.w r11d
|
|
%define tmp.b r11b
|
|
%define tmp2 r10
|
|
%define tmp3 r9
|
|
%define return rax
|
|
%define PS 8
|
|
%define func(x) x:
|
|
%define FUNC_SAVE
|
|
%define FUNC_RESTORE
|
|
%endif
|
|
|
|
%ifidn __OUTPUT_FORMAT__, macho64
|
|
%define arg0 rdi
|
|
%define arg1 rsi
|
|
%define arg2 rdx
|
|
%define arg3 rcx
|
|
%define arg4 r8
|
|
%define arg5 r9
|
|
|
|
%define tmp r11
|
|
%define tmp.w r11d
|
|
%define tmp.b r11b
|
|
%define tmp2 r10
|
|
%define tmp3 r9
|
|
%define return rax
|
|
%define PS 8
|
|
%define func(x) x:
|
|
%define FUNC_SAVE
|
|
%define FUNC_RESTORE
|
|
%endif
|
|
|
|
%ifidn __OUTPUT_FORMAT__, win64
|
|
%define arg0 rcx
|
|
%define arg1 rdx
|
|
%define arg2 r8
|
|
%define arg3 r9
|
|
|
|
%define arg4 r12 ; must be saved and loaded
|
|
%define tmp r11
|
|
%define tmp.w r11d
|
|
%define tmp.b r11b
|
|
%define tmp2 r10
|
|
%define tmp3 rdi ; must be saved and loaded
|
|
%define return rax
|
|
%define PS 8
|
|
%define frame_size 2*8
|
|
%define arg(x) [rsp + frame_size + PS + PS*x]
|
|
|
|
%define func(x) proc_frame x
|
|
%macro FUNC_SAVE 0
|
|
rex_push_reg r12
|
|
push_reg rdi
|
|
end_prolog
|
|
mov arg4, arg(4)
|
|
%endmacro
|
|
|
|
%macro FUNC_RESTORE 0
|
|
pop rdi
|
|
pop r12
|
|
%endmacro
|
|
%endif
|
|
|
|
|
|
%define len arg0
|
|
%define vec arg1
|
|
%define mul_array arg2
|
|
%define src arg3
|
|
%define dest arg4
|
|
|
|
%define vec_i tmp2
|
|
%define ptr tmp3
|
|
%define pos return
|
|
|
|
%ifndef EC_ALIGNED_ADDR
|
|
;;; Use Un-aligned load/store
|
|
%define XLDR vmovdqu
|
|
%define XSTR vmovdqu
|
|
%else
|
|
;;; Use Non-temporal load/stor
|
|
%ifdef NO_NT_LDST
|
|
%define XLDR vmovdqa
|
|
%define XSTR vmovdqa
|
|
%else
|
|
%define XLDR vmovntdqa
|
|
%define XSTR vmovntdq
|
|
%endif
|
|
%endif
|
|
|
|
|
|
default rel
|
|
|
|
[bits 64]
|
|
section .text
|
|
|
|
%define xmask0f ymm3
|
|
%define xmask0fx xmm3
|
|
%define xgft_lo ymm4
|
|
%define xgft_hi ymm5
|
|
|
|
%define x0 ymm0
|
|
%define xtmpa ymm1
|
|
%define xp ymm2
|
|
|
|
align 16
|
|
global GF_VECT_DOT_PROD_AVX2:function
|
|
func(GF_VECT_DOT_PROD_AVX2)
|
|
FUNC_SAVE
|
|
sub len, 32
|
|
jl .return_fail
|
|
xor pos, pos
|
|
mov tmp.b, 0x0f
|
|
vpinsrb xmask0fx, xmask0fx, tmp.w, 0
|
|
vpbroadcastb xmask0f, xmask0fx ;Construct mask 0x0f0f0f...
|
|
|
|
.loop32:
|
|
vpxor xp, xp
|
|
mov tmp, mul_array
|
|
xor vec_i, vec_i
|
|
|
|
.next_vect:
|
|
mov ptr, [src+vec_i*PS]
|
|
|
|
vmovdqu xgft_lo, [tmp] ;Load array Cx{00}, Cx{01}, Cx{02}, ...
|
|
; " Cx{00}, Cx{10}, Cx{20}, ... , Cx{f0}
|
|
vperm2i128 xgft_hi, xgft_lo, xgft_lo, 0x11 ; swapped to hi | hi
|
|
vperm2i128 xgft_lo, xgft_lo, xgft_lo, 0x00 ; swapped to lo | lo
|
|
|
|
XLDR x0, [ptr+pos] ;Get next source vector
|
|
add tmp, 32
|
|
add vec_i, 1
|
|
|
|
vpand xtmpa, x0, xmask0f ;Mask low src nibble in bits 4-0
|
|
vpsraw x0, x0, 4 ;Shift to put high nibble into bits 4-0
|
|
vpand x0, x0, xmask0f ;Mask high src nibble in bits 4-0
|
|
|
|
vpshufb xgft_hi, xgft_hi, x0 ;Lookup mul table of high nibble
|
|
vpshufb xgft_lo, xgft_lo, xtmpa ;Lookup mul table of low nibble
|
|
vpxor xgft_hi, xgft_hi, xgft_lo ;GF add high and low partials
|
|
vpxor xp, xp, xgft_hi ;xp += partial
|
|
cmp vec_i, vec
|
|
jl .next_vect
|
|
|
|
XSTR [dest+pos], xp
|
|
add pos, 32 ;Loop on 32 bytes at a time
|
|
cmp pos, len
|
|
jle .loop32
|
|
|
|
lea tmp, [len + 32]
|
|
cmp pos, tmp
|
|
je .return_pass
|
|
|
|
;; Tail len
|
|
mov pos, len ;Overlapped offset length-32
|
|
jmp .loop32 ;Do one more overlap pass
|
|
|
|
.return_pass:
|
|
mov return, 0
|
|
FUNC_RESTORE
|
|
ret
|
|
|
|
.return_fail:
|
|
mov return, 1
|
|
FUNC_RESTORE
|
|
ret
|
|
|
|
endproc_frame
|
|
|
|
section .data
|
|
|
|
%macro slversion 4
|
|
global %1_slver_%2%3%4
|
|
global %1_slver
|
|
%1_slver:
|
|
%1_slver_%2%3%4:
|
|
dw 0x%4
|
|
db 0x%3, 0x%2
|
|
%endmacro
|
|
;;; func core, ver, snum
|
|
slversion GF_VECT_DOT_PROD_AVX2, 04, 03, 0190
|
|
|