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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; gf_3vect_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*10 + 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
vmovdqa [rsp + 3*16], xmm9
vmovdqa [rsp + 4*16], xmm10
vmovdqa [rsp + 5*16], xmm11
vmovdqa [rsp + 6*16], xmm12
vmovdqa [rsp + 7*16], xmm13
vmovdqa [rsp + 8*16], xmm14
vmovdqa [rsp + 9*16], xmm15
mov [rsp + 10*16 + 0*8], r12
mov [rsp + 10*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]
vmovdqa xmm9, [rsp + 3*16]
vmovdqa xmm10, [rsp + 4*16]
vmovdqa xmm11, [rsp + 5*16]
vmovdqa xmm12, [rsp + 6*16]
vmovdqa xmm13, [rsp + 7*16]
vmovdqa xmm14, [rsp + 8*16]
vmovdqa xmm15, [rsp + 9*16]
mov r12, [rsp + 10*16 + 0*8]
mov r13, [rsp + 10*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 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 ymm0 ; reuse ymm0
%define xgft1 ymm1
%define xgft2 ymm2
%define xgft3 ymm3
%define xd1l ymm4
%define xd1h ymm5
%define xd2l ymm6
%define xd2h ymm7
%define xd3l ymm8
%define xd3h ymm9
%define xret1l ymm10
%define xret1h ymm11
%define xret2l ymm12
%define xret2h ymm13
%define xret3l ymm14
%define xret3h ymm15
%define x0 x0l
%define xd1 xd1l
%define xd2 xd2l
%define xd3 xd3l
%define xret1 xret1l
%define xret2 xret2l
%define xret3 xret3l
;;
;; Encodes 64 bytes of a single source into 3x 64 bytes (parity disks)
;;
%macro ENCODE_64B_3 0
; get next source vector
XLDR x0l, [src + pos] ;; read low 32 bytes
; get next dest vectors
XLDR xd1l, [dest1 + pos]
XLDR xd1h, [dest1 + pos + 32]
XLDR xd2l, [dest2 + pos]
XLDR xd2h, [dest2 + pos + 32]
XLDR xd3l, [dest3 + pos]
XLDR xd3h, [dest3 + pos + 32]
GF_MUL_XOR VEX, x0l, xgft1, xret1l, xd1l, xgft2, xret2l, xd2l, xgft3, xret3l, xd3l
XLDR x0h, [src + pos + 32] ;; read high 32 bytes
GF_MUL_XOR VEX, x0h, xgft1, xret1h, xd1h, xgft2, xret2h, xd2h, xgft3, xret3h, xd3h
XSTR [dest1 + pos], xd1l
XSTR [dest1 + pos + 32], xd1h
XSTR [dest2 + pos], xd2l
XSTR [dest2 + pos + 32], xd2h
XSTR [dest3 + pos], xd3l
XSTR [dest3 + pos + 32], xd3h
%endmacro
;;
;; Encodes 32 bytes of a single source into 3x 32 bytes (parity disks)
;;
%macro ENCODE_32B_3 0
; get next source vector
XLDR x0, [src + pos]
; get next dest vectors
XLDR xd1, [dest1 + pos]
XLDR xd2, [dest2 + pos]
XLDR xd3, [dest3 + pos]
GF_MUL_XOR VEX, x0, xgft1, xret1, xd1, xgft2, xret2, xd2, xgft3, xret3, xd3
XSTR [dest1 + pos], xd1
XSTR [dest2 + pos], xd2
XSTR [dest3 + pos], xd3
%endmacro
;;
;; Encodes less than 32 bytes of a single source into 3x parity disks
;;
%macro ENCODE_LT_32B_3 1
%define %%LEN %1
; get next source vector
simd_load_avx2 x0, src + pos, %%LEN, tmp, tmp2
; get next dest vectors
simd_load_avx2 xd1, dest1 + pos, %%LEN, tmp, tmp2
simd_load_avx2 xd2, dest2 + pos, %%LEN, tmp, tmp2
simd_load_avx2 xd3, dest3 + pos, %%LEN, tmp, tmp2
GF_MUL_XOR VEX, x0, xgft1, xret1, xd1, xgft2, xret2, xd2, xgft3, xret3, xd3
lea dest1, [dest1 + pos]
simd_store_avx2 dest1, xd1, %%LEN, tmp, tmp2
lea dest2, [dest2 + pos]
simd_store_avx2 dest2, xd2, %%LEN, tmp, tmp2
lea dest3, [dest3 + pos]
simd_store_avx2 dest3, xd3, %%LEN, tmp, tmp2
%endmacro
align 16
global gf_3vect_mad_avx2_gfni, function
func(gf_3vect_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]
vbroadcastsd xgft2, [tmp + vec]
vbroadcastsd xgft3, [tmp + vec*2]
mov dest2, [dest1 + 8] ; reuse mul_array
mov dest3, [dest1 + 2*8] ; reuse vec_i
mov dest1, [dest1]
cmp len, 64
jl .len_lt_64
.loop64:
ENCODE_64B_3 ;; loop on 64 bytes at a time
add pos, 64
sub len, 64
cmp len, 64
jge .loop64
.len_lt_64:
cmp len, 32
jl .len_lt_32
ENCODE_32B_3 ;; encode next 32 bytes
add pos, 32
sub len, 32
.len_lt_32:
cmp len, 0
jle .exit
ENCODE_LT_32B_3 len ;; encode final bytes
.exit:
vzeroupper
FUNC_RESTORE
ret
endproc_frame
%endif ; if AS_FEATURE_LEVEL >= 10