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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_vect_mad_avx2_gfni(len, vec, vec_i, mul_array, src, dest);
;;;
%include "reg_sizes.asm"
%include "gf_vect_gfni.inc"
%include "memcpy.asm"
%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 tmp2 r10
%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 tmp2 r10
%define stack_size 16*3 + 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 + 0*16], xmm6
vmovdqa [rsp + 1*16], xmm7
vmovdqa [rsp + 2*16], xmm8
mov [rsp + 3*16 + 0*8], r12
mov [rsp + 3*16 + 1*8], r13
end_prolog
mov arg4, arg(4)
mov arg5, arg(5)
%endmacro
%macro FUNC_RESTORE 0
vmovdqa xmm6, [rsp + 0*16]
vmovdqa xmm7, [rsp + 1*16]
vmovdqa xmm8, [rsp + 2*16]
mov r12, [rsp + 3*16 + 0*8]
mov r13, [rsp + 3*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
%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 x0l ymm0
%define x0h ymm1
%define x0x ymm2
%define xgft1 ymm3
%define xd1l ymm4
%define xd1h ymm5
%define xd1x ymm6
%define xret1l ymm7
%define xret1h ymm8
%define x0 x0l
%define xd1 xd1l
%define xret1 xret1l
;;
;; Encodes 96 bytes of a single source and updates a single parity disk
;;
%macro ENCODE_96B 0
;; get next source vector
XLDR x0l, [src + pos]
XLDR x0h, [src + pos + 32]
XLDR x0x, [src + pos + 64]
;; get next dest vector
XLDR xd1l, [dest1 + pos]
XLDR xd1h, [dest1 + pos + 32]
XLDR xd1x, [dest1 + pos + 64]
GF_MUL_XOR VEX, x0l, xgft1, xret1l, xd1l
GF_MUL_XOR VEX, x0h, xgft1, xret1h, xd1h
GF_MUL_XOR VEX, x0x, xgft1, xret1l, xd1x
XSTR [dest1 + pos], xd1l
XSTR [dest1 + pos + 32], xd1h
XSTR [dest1 + pos + 64], xd1x
%endmacro
;;
;; Encodes 64 bytes of a single source and updates a single parity disk
;;
%macro ENCODE_64B 0
;; get next source vector
XLDR x0l, [src + pos]
XLDR x0h, [src + pos + 32]
;; get next dest vector
XLDR xd1l, [dest1 + pos]
XLDR xd1h, [dest1 + pos + 32]
GF_MUL_XOR VEX, x0l, xgft1, xret1l, xd1l
GF_MUL_XOR VEX, x0h, xgft1, xret1h, xd1h
XSTR [dest1 + pos], xd1l
XSTR [dest1 + pos + 32], xd1h
%endmacro
;;
;; Encodes 32 bytes of a single source and updates single parity disk
;;
%macro ENCODE_32B 0
;; get next source vector
XLDR x0, [src + pos]
;; get next dest vector
XLDR xd1, [dest1 + pos]
GF_MUL_XOR VEX, x0, xgft1, xret1, xd1
XSTR [dest1 + pos], xd1
%endmacro
;;
;; Encodes less than 32 bytes of a single source and updates parity disk
;;
%macro ENCODE_LT_32B 1
%define %%LEN %1
;; get next source vector
simd_load_avx2 x0, src + pos, %%LEN, tmp, tmp2
;; get next dest vector
simd_load_avx2 xd1, dest1 + pos, %%LEN, tmp, tmp2
GF_MUL_XOR VEX, x0, xgft1, xret1, xd1
lea dest1, [dest1 + pos]
simd_store_avx2 dest1, xd1, %%LEN, tmp, tmp2
%endmacro
align 16
global gf_vect_mad_avx2_gfni, function
func(gf_vect_mad_avx2_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]
vbroadcastsd xgft1, [tmp]
cmp len, 96
jl .len_lt_96
.loop96:
ENCODE_96B ;; loop on 96 bytes at a time
add pos, 96
sub len, 96
cmp len, 96
jge .loop96
.len_lt_96:
cmp len, 64
jl .len_lt_64
ENCODE_64B ;; encode next 64 bytes
add pos, 64
sub len, 64
.len_lt_64:
cmp len, 32
jl .len_lt_32
ENCODE_32B ;; encode next 32 bytes
add pos, 32
sub len, 32
.len_lt_32:
cmp len, 0
jle .exit
ENCODE_LT_32B len ;; encode final bytes
.exit:
vzeroupper
FUNC_RESTORE
ret
endproc_frame
%endif ; if AS_FEATURE_LEVEL >= 10
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