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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright(c) 2023 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_3vect_mad_avx512_gfni(len, vec, vec_i, mul_array, src, dest);
;;;
%include "reg_sizes.asm"
%include "gf_vect_gfni.inc"
%if AS_FEATURE_LEVEL >= 10
%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 func(x) x: endbranch
%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, loaded and restored
%define arg5 r13 ; must be saved and restored
%define tmp r11
%define stack_size 16*4 + 3*8
%define arg(x) [rsp + stack_size + 8 + 8*x]
%define func(x) proc_frame x
%macro FUNC_SAVE 0
sub rsp, stack_size
vmovdqa [rsp + 16*0], xmm6
vmovdqa [rsp + 16*1], xmm7
vmovdqa [rsp + 16*2], xmm8
vmovdqa [rsp + 16*3], xmm9
mov [rsp + 4*16 + 0*8], r12
mov [rsp + 4*16 + 1*8], r13
end_prolog
mov arg4, arg(4)
mov arg5, arg(5)
%endmacro
%macro FUNC_RESTORE 0
vmovdqa xmm6, [rsp + 16*0]
vmovdqa xmm7, [rsp + 16*1]
vmovdqa xmm8, [rsp + 16*2]
vmovdqa xmm9, [rsp + 16*3]
mov r12, [rsp + 4*16 + 0*8]
mov r13, [rsp + 4*16 + 1*8]
add rsp, stack_size
%endmacro
%endif
%define len arg0
%define vec arg1
%define vec_i arg2
%define mul_array arg3
%define src arg4
%define dest1 arg5
%define pos rax
%define dest2 mul_array
%define dest3 vec_i
%ifndef EC_ALIGNED_ADDR
;;; Use Un-aligned load/store
%define XLDR vmovdqu8
%define XSTR vmovdqu8
%else
;;; Use Non-temporal load/stor
%ifdef NO_NT_LDST
%define XLDR vmovdqa64
%define XSTR vmovdqa64
%else
%define XLDR vmovntdqa
%define XSTR vmovntdq
%endif
%endif
default rel
[bits 64]
section .text
%define x0 zmm0
%define xgft1 zmm1
%define xgft2 zmm2
%define xgft3 zmm3
%define xd1 zmm4
%define xd2 zmm5
%define xd3 zmm6
%define xret1 zmm7
%define xret2 zmm8
%define xret3 zmm9
;;
;; Encodes 64 bytes of a single source into 3x 64 bytes (parity disks)
;;
%macro ENCODE_64B_3 0-1
%define %%KMASK %1
%if %0 == 1
vmovdqu8 x0{%%KMASK}, [src + pos] ;Get next source vector
vmovdqu8 xd1{%%KMASK}, [dest1 + pos] ;Get next dest vector
vmovdqu8 xd2{%%KMASK}, [dest2 + pos] ;Get next dest vector
vmovdqu8 xd3{%%KMASK}, [dest3 + pos] ;Get next dest vector
%else
XLDR x0, [src + pos] ;Get next source vector
XLDR xd1, [dest1 + pos] ;Get next dest vector
XLDR xd2, [dest2 + pos] ;Get next dest vector
XLDR xd3, [dest3 + pos] ;Get next dest vector
%endif
GF_MUL_XOR EVEX, x0, xgft1, xret1, xd1, xgft2, xret2, xd2, xgft3, xret3, xd3
%if %0 == 1
vmovdqu8 [dest1 + pos]{%%KMASK}, xd1
vmovdqu8 [dest2 + pos]{%%KMASK}, xd2
vmovdqu8 [dest3 + pos]{%%KMASK}, xd3
%else
XSTR [dest1 + pos], xd1
XSTR [dest2 + pos], xd2
XSTR [dest3 + pos], xd3
%endif
%endmacro
align 16
global gf_3vect_mad_avx512_gfni, function
func(gf_3vect_mad_avx512_gfni)
FUNC_SAVE
xor pos, pos
shl vec_i, 3 ;Multiply by 8
shl vec, 3 ;Multiply by 8
lea tmp, [mul_array + vec_i]
vbroadcastf32x2 xgft1, [tmp]
vbroadcastf32x2 xgft2, [tmp + vec]
vbroadcastf32x2 xgft3, [tmp + vec*2]
mov dest2, [dest1 + 8] ; reuse mul_array
mov dest3, [dest1 + 2*8] ; reuse vec
mov dest1, [dest1]
cmp len, 64
jl .len_lt_64
.loop64:
ENCODE_64B_3
add pos, 64 ;Loop on 64 bytes at a time
sub len, 64
cmp len, 64
jge .loop64
.len_lt_64:
cmp len, 0
jle .exit
xor tmp, tmp
bts tmp, len
dec tmp
kmovq k1, tmp
ENCODE_64B_3 k1
.exit:
vzeroupper
FUNC_RESTORE
ret
endproc_frame
%endif ; if AS_FEATURE_LEVEL >= 10
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