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linux/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
Jussi Kivilinna a05248ed2d crypto: x86 - add more optimized XTS-mode for serpent-avx 
This patch adds AVX optimized XTS-mode helper functions/macros and converts
serpent-avx to use the new facilities. Benefits are slightly improved speed
and reduced stack usage as use of temporary IV-array is avoided.

tcrypt results, with Intel i5-2450M:
        enc     dec
16B     1.00x   1.00x
64B     1.00x   1.00x
256B    1.04x   1.06x
1024B   1.09x   1.09x
8192B   1.10x   1.09x

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2013-04-25 21:01:51 +08:00

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/*
* Serpent Cipher 8-way parallel algorithm (x86_64/AVX)
*
* Copyright (C) 2012 Johannes Goetzfried
* <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
*
* Copyright © 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include <linux/linkage.h>
#include "glue_helper-asm-avx.S"
.file "serpent-avx-x86_64-asm_64.S"
.data
.align 16
.Lbswap128_mask:
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
.Lxts_gf128mul_and_shl1_mask:
.byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0
.text
#define CTX %rdi
/**********************************************************************
8-way AVX serpent
**********************************************************************/
#define RA1 %xmm0
#define RB1 %xmm1
#define RC1 %xmm2
#define RD1 %xmm3
#define RE1 %xmm4
#define tp %xmm5
#define RA2 %xmm6
#define RB2 %xmm7
#define RC2 %xmm8
#define RD2 %xmm9
#define RE2 %xmm10
#define RNOT %xmm11
#define RK0 %xmm12
#define RK1 %xmm13
#define RK2 %xmm14
#define RK3 %xmm15
#define S0_1(x0, x1, x2, x3, x4) \
vpor x0, x3, tp; \
vpxor x3, x0, x0; \
vpxor x2, x3, x4; \
vpxor RNOT, x4, x4; \
vpxor x1, tp, x3; \
vpand x0, x1, x1; \
vpxor x4, x1, x1; \
vpxor x0, x2, x2;
#define S0_2(x0, x1, x2, x3, x4) \
vpxor x3, x0, x0; \
vpor x0, x4, x4; \
vpxor x2, x0, x0; \
vpand x1, x2, x2; \
vpxor x2, x3, x3; \
vpxor RNOT, x1, x1; \
vpxor x4, x2, x2; \
vpxor x2, x1, x1;
#define S1_1(x0, x1, x2, x3, x4) \
vpxor x0, x1, tp; \
vpxor x3, x0, x0; \
vpxor RNOT, x3, x3; \
vpand tp, x1, x4; \
vpor tp, x0, x0; \
vpxor x2, x3, x3; \
vpxor x3, x0, x0; \
vpxor x3, tp, x1;
#define S1_2(x0, x1, x2, x3, x4) \
vpxor x4, x3, x3; \
vpor x4, x1, x1; \
vpxor x2, x4, x4; \
vpand x0, x2, x2; \
vpxor x1, x2, x2; \
vpor x0, x1, x1; \
vpxor RNOT, x0, x0; \
vpxor x2, x0, x0; \
vpxor x1, x4, x4;
#define S2_1(x0, x1, x2, x3, x4) \
vpxor RNOT, x3, x3; \
vpxor x0, x1, x1; \
vpand x2, x0, tp; \
vpxor x3, tp, tp; \
vpor x0, x3, x3; \
vpxor x1, x2, x2; \
vpxor x1, x3, x3; \
vpand tp, x1, x1;
#define S2_2(x0, x1, x2, x3, x4) \
vpxor x2, tp, tp; \
vpand x3, x2, x2; \
vpor x1, x3, x3; \
vpxor RNOT, tp, tp; \
vpxor tp, x3, x3; \
vpxor tp, x0, x4; \
vpxor x2, tp, x0; \
vpor x2, x1, x1;
#define S3_1(x0, x1, x2, x3, x4) \
vpxor x3, x1, tp; \
vpor x0, x3, x3; \
vpand x0, x1, x4; \
vpxor x2, x0, x0; \
vpxor tp, x2, x2; \
vpand x3, tp, x1; \
vpxor x3, x2, x2; \
vpor x4, x0, x0; \
vpxor x3, x4, x4;
#define S3_2(x0, x1, x2, x3, x4) \
vpxor x0, x1, x1; \
vpand x3, x0, x0; \
vpand x4, x3, x3; \
vpxor x2, x3, x3; \
vpor x1, x4, x4; \
vpand x1, x2, x2; \
vpxor x3, x4, x4; \
vpxor x3, x0, x0; \
vpxor x2, x3, x3;
#define S4_1(x0, x1, x2, x3, x4) \
vpand x0, x3, tp; \
vpxor x3, x0, x0; \
vpxor x2, tp, tp; \
vpor x3, x2, x2; \
vpxor x1, x0, x0; \
vpxor tp, x3, x4; \
vpor x0, x2, x2; \
vpxor x1, x2, x2;
#define S4_2(x0, x1, x2, x3, x4) \
vpand x0, x1, x1; \
vpxor x4, x1, x1; \
vpand x2, x4, x4; \
vpxor tp, x2, x2; \
vpxor x0, x4, x4; \
vpor x1, tp, x3; \
vpxor RNOT, x1, x1; \
vpxor x0, x3, x3;
#define S5_1(x0, x1, x2, x3, x4) \
vpor x0, x1, tp; \
vpxor tp, x2, x2; \
vpxor RNOT, x3, x3; \
vpxor x0, x1, x4; \
vpxor x2, x0, x0; \
vpand x4, tp, x1; \
vpor x3, x4, x4; \
vpxor x0, x4, x4;
#define S5_2(x0, x1, x2, x3, x4) \
vpand x3, x0, x0; \
vpxor x3, x1, x1; \
vpxor x2, x3, x3; \
vpxor x1, x0, x0; \
vpand x4, x2, x2; \
vpxor x2, x1, x1; \
vpand x0, x2, x2; \
vpxor x2, x3, x3;
#define S6_1(x0, x1, x2, x3, x4) \
vpxor x0, x3, x3; \
vpxor x2, x1, tp; \
vpxor x0, x2, x2; \
vpand x3, x0, x0; \
vpor x3, tp, tp; \
vpxor RNOT, x1, x4; \
vpxor tp, x0, x0; \
vpxor x2, tp, x1;
#define S6_2(x0, x1, x2, x3, x4) \
vpxor x4, x3, x3; \
vpxor x0, x4, x4; \
vpand x0, x2, x2; \
vpxor x1, x4, x4; \
vpxor x3, x2, x2; \
vpand x1, x3, x3; \
vpxor x0, x3, x3; \
vpxor x2, x1, x1;
#define S7_1(x0, x1, x2, x3, x4) \
vpxor RNOT, x1, tp; \
vpxor RNOT, x0, x0; \
vpand x2, tp, x1; \
vpxor x3, x1, x1; \
vpor tp, x3, x3; \
vpxor x2, tp, x4; \
vpxor x3, x2, x2; \
vpxor x0, x3, x3; \
vpor x1, x0, x0;
#define S7_2(x0, x1, x2, x3, x4) \
vpand x0, x2, x2; \
vpxor x4, x0, x0; \
vpxor x3, x4, x4; \
vpand x0, x3, x3; \
vpxor x1, x4, x4; \
vpxor x4, x2, x2; \
vpxor x1, x3, x3; \
vpor x0, x4, x4; \
vpxor x1, x4, x4;
#define SI0_1(x0, x1, x2, x3, x4) \
vpxor x0, x1, x1; \
vpor x1, x3, tp; \
vpxor x1, x3, x4; \
vpxor RNOT, x0, x0; \
vpxor tp, x2, x2; \
vpxor x0, tp, x3; \
vpand x1, x0, x0; \
vpxor x2, x0, x0;
#define SI0_2(x0, x1, x2, x3, x4) \
vpand x3, x2, x2; \
vpxor x4, x3, x3; \
vpxor x3, x2, x2; \
vpxor x3, x1, x1; \
vpand x0, x3, x3; \
vpxor x0, x1, x1; \
vpxor x2, x0, x0; \
vpxor x3, x4, x4;
#define SI1_1(x0, x1, x2, x3, x4) \
vpxor x3, x1, x1; \
vpxor x2, x0, tp; \
vpxor RNOT, x2, x2; \
vpor x1, x0, x4; \
vpxor x3, x4, x4; \
vpand x1, x3, x3; \
vpxor x2, x1, x1; \
vpand x4, x2, x2;
#define SI1_2(x0, x1, x2, x3, x4) \
vpxor x1, x4, x4; \
vpor x3, x1, x1; \
vpxor tp, x3, x3; \
vpxor tp, x2, x2; \
vpor x4, tp, x0; \
vpxor x4, x2, x2; \
vpxor x0, x1, x1; \
vpxor x1, x4, x4;
#define SI2_1(x0, x1, x2, x3, x4) \
vpxor x1, x2, x2; \
vpxor RNOT, x3, tp; \
vpor x2, tp, tp; \
vpxor x3, x2, x2; \
vpxor x0, x3, x4; \
vpxor x1, tp, x3; \
vpor x2, x1, x1; \
vpxor x0, x2, x2;
#define SI2_2(x0, x1, x2, x3, x4) \
vpxor x4, x1, x1; \
vpor x3, x4, x4; \
vpxor x3, x2, x2; \
vpxor x2, x4, x4; \
vpand x1, x2, x2; \
vpxor x3, x2, x2; \
vpxor x4, x3, x3; \
vpxor x0, x4, x4;
#define SI3_1(x0, x1, x2, x3, x4) \
vpxor x1, x2, x2; \
vpand x2, x1, tp; \
vpxor x0, tp, tp; \
vpor x1, x0, x0; \
vpxor x3, x1, x4; \
vpxor x3, x0, x0; \
vpor tp, x3, x3; \
vpxor x2, tp, x1;
#define SI3_2(x0, x1, x2, x3, x4) \
vpxor x3, x1, x1; \
vpxor x2, x0, x0; \
vpxor x3, x2, x2; \
vpand x1, x3, x3; \
vpxor x0, x1, x1; \
vpand x2, x0, x0; \
vpxor x3, x4, x4; \
vpxor x0, x3, x3; \
vpxor x1, x0, x0;
#define SI4_1(x0, x1, x2, x3, x4) \
vpxor x3, x2, x2; \
vpand x1, x0, tp; \
vpxor x2, tp, tp; \
vpor x3, x2, x2; \
vpxor RNOT, x0, x4; \
vpxor tp, x1, x1; \
vpxor x2, tp, x0; \
vpand x4, x2, x2;
#define SI4_2(x0, x1, x2, x3, x4) \
vpxor x0, x2, x2; \
vpor x4, x0, x0; \
vpxor x3, x0, x0; \
vpand x2, x3, x3; \
vpxor x3, x4, x4; \
vpxor x1, x3, x3; \
vpand x0, x1, x1; \
vpxor x1, x4, x4; \
vpxor x3, x0, x0;
#define SI5_1(x0, x1, x2, x3, x4) \
vpor x2, x1, tp; \
vpxor x1, x2, x2; \
vpxor x3, tp, tp; \
vpand x1, x3, x3; \
vpxor x3, x2, x2; \
vpor x0, x3, x3; \
vpxor RNOT, x0, x0; \
vpxor x2, x3, x3; \
vpor x0, x2, x2;
#define SI5_2(x0, x1, x2, x3, x4) \
vpxor tp, x1, x4; \
vpxor x4, x2, x2; \
vpand x0, x4, x4; \
vpxor tp, x0, x0; \
vpxor x3, tp, x1; \
vpand x2, x0, x0; \
vpxor x3, x2, x2; \
vpxor x2, x0, x0; \
vpxor x4, x2, x2; \
vpxor x3, x4, x4;
#define SI6_1(x0, x1, x2, x3, x4) \
vpxor x2, x0, x0; \
vpand x3, x0, tp; \
vpxor x3, x2, x2; \
vpxor x2, tp, tp; \
vpxor x1, x3, x3; \
vpor x0, x2, x2; \
vpxor x3, x2, x2; \
vpand tp, x3, x3;
#define SI6_2(x0, x1, x2, x3, x4) \
vpxor RNOT, tp, tp; \
vpxor x1, x3, x3; \
vpand x2, x1, x1; \
vpxor tp, x0, x4; \
vpxor x4, x3, x3; \
vpxor x2, x4, x4; \
vpxor x1, tp, x0; \
vpxor x0, x2, x2;
#define SI7_1(x0, x1, x2, x3, x4) \
vpand x0, x3, tp; \
vpxor x2, x0, x0; \
vpor x3, x2, x2; \
vpxor x1, x3, x4; \
vpxor RNOT, x0, x0; \
vpor tp, x1, x1; \
vpxor x0, x4, x4; \
vpand x2, x0, x0; \
vpxor x1, x0, x0;
#define SI7_2(x0, x1, x2, x3, x4) \
vpand x2, x1, x1; \
vpxor x2, tp, x3; \
vpxor x3, x4, x4; \
vpand x3, x2, x2; \
vpor x0, x3, x3; \
vpxor x4, x1, x1; \
vpxor x4, x3, x3; \
vpand x0, x4, x4; \
vpxor x2, x4, x4;
#define get_key(i, j, t) \
vbroadcastss (4*(i)+(j))*4(CTX), t;
#define K2(x0, x1, x2, x3, x4, i) \
get_key(i, 0, RK0); \
get_key(i, 1, RK1); \
get_key(i, 2, RK2); \
get_key(i, 3, RK3); \
vpxor RK0, x0 ## 1, x0 ## 1; \
vpxor RK1, x1 ## 1, x1 ## 1; \
vpxor RK2, x2 ## 1, x2 ## 1; \
vpxor RK3, x3 ## 1, x3 ## 1; \
vpxor RK0, x0 ## 2, x0 ## 2; \
vpxor RK1, x1 ## 2, x1 ## 2; \
vpxor RK2, x2 ## 2, x2 ## 2; \
vpxor RK3, x3 ## 2, x3 ## 2;
#define LK2(x0, x1, x2, x3, x4, i) \
vpslld $13, x0 ## 1, x4 ## 1; \
vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \
vpor x4 ## 1, x0 ## 1, x0 ## 1; \
vpxor x0 ## 1, x1 ## 1, x1 ## 1; \
vpslld $3, x2 ## 1, x4 ## 1; \
vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \
vpor x4 ## 1, x2 ## 1, x2 ## 1; \
vpxor x2 ## 1, x1 ## 1, x1 ## 1; \
vpslld $13, x0 ## 2, x4 ## 2; \
vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \
vpor x4 ## 2, x0 ## 2, x0 ## 2; \
vpxor x0 ## 2, x1 ## 2, x1 ## 2; \
vpslld $3, x2 ## 2, x4 ## 2; \
vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \
vpor x4 ## 2, x2 ## 2, x2 ## 2; \
vpxor x2 ## 2, x1 ## 2, x1 ## 2; \
vpslld $1, x1 ## 1, x4 ## 1; \
vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \
vpor x4 ## 1, x1 ## 1, x1 ## 1; \
vpslld $3, x0 ## 1, x4 ## 1; \
vpxor x2 ## 1, x3 ## 1, x3 ## 1; \
vpxor x4 ## 1, x3 ## 1, x3 ## 1; \
get_key(i, 1, RK1); \
vpslld $1, x1 ## 2, x4 ## 2; \
vpsrld $(32 - 1), x1 ## 2, x1 ## 2; \
vpor x4 ## 2, x1 ## 2, x1 ## 2; \
vpslld $3, x0 ## 2, x4 ## 2; \
vpxor x2 ## 2, x3 ## 2, x3 ## 2; \
vpxor x4 ## 2, x3 ## 2, x3 ## 2; \
get_key(i, 3, RK3); \
vpslld $7, x3 ## 1, x4 ## 1; \
vpsrld $(32 - 7), x3 ## 1, x3 ## 1; \
vpor x4 ## 1, x3 ## 1, x3 ## 1; \
vpslld $7, x1 ## 1, x4 ## 1; \
vpxor x1 ## 1, x0 ## 1, x0 ## 1; \
vpxor x3 ## 1, x0 ## 1, x0 ## 1; \
vpxor x3 ## 1, x2 ## 1, x2 ## 1; \
vpxor x4 ## 1, x2 ## 1, x2 ## 1; \
get_key(i, 0, RK0); \
vpslld $7, x3 ## 2, x4 ## 2; \
vpsrld $(32 - 7), x3 ## 2, x3 ## 2; \
vpor x4 ## 2, x3 ## 2, x3 ## 2; \
vpslld $7, x1 ## 2, x4 ## 2; \
vpxor x1 ## 2, x0 ## 2, x0 ## 2; \
vpxor x3 ## 2, x0 ## 2, x0 ## 2; \
vpxor x3 ## 2, x2 ## 2, x2 ## 2; \
vpxor x4 ## 2, x2 ## 2, x2 ## 2; \
get_key(i, 2, RK2); \
vpxor RK1, x1 ## 1, x1 ## 1; \
vpxor RK3, x3 ## 1, x3 ## 1; \
vpslld $5, x0 ## 1, x4 ## 1; \
vpsrld $(32 - 5), x0 ## 1, x0 ## 1; \
vpor x4 ## 1, x0 ## 1, x0 ## 1; \
vpslld $22, x2 ## 1, x4 ## 1; \
vpsrld $(32 - 22), x2 ## 1, x2 ## 1; \
vpor x4 ## 1, x2 ## 1, x2 ## 1; \
vpxor RK0, x0 ## 1, x0 ## 1; \
vpxor RK2, x2 ## 1, x2 ## 1; \
vpxor RK1, x1 ## 2, x1 ## 2; \
vpxor RK3, x3 ## 2, x3 ## 2; \
vpslld $5, x0 ## 2, x4 ## 2; \
vpsrld $(32 - 5), x0 ## 2, x0 ## 2; \
vpor x4 ## 2, x0 ## 2, x0 ## 2; \
vpslld $22, x2 ## 2, x4 ## 2; \
vpsrld $(32 - 22), x2 ## 2, x2 ## 2; \
vpor x4 ## 2, x2 ## 2, x2 ## 2; \
vpxor RK0, x0 ## 2, x0 ## 2; \
vpxor RK2, x2 ## 2, x2 ## 2;
#define KL2(x0, x1, x2, x3, x4, i) \
vpxor RK0, x0 ## 1, x0 ## 1; \
vpxor RK2, x2 ## 1, x2 ## 1; \
vpsrld $5, x0 ## 1, x4 ## 1; \
vpslld $(32 - 5), x0 ## 1, x0 ## 1; \
vpor x4 ## 1, x0 ## 1, x0 ## 1; \
vpxor RK3, x3 ## 1, x3 ## 1; \
vpxor RK1, x1 ## 1, x1 ## 1; \
vpsrld $22, x2 ## 1, x4 ## 1; \
vpslld $(32 - 22), x2 ## 1, x2 ## 1; \
vpor x4 ## 1, x2 ## 1, x2 ## 1; \
vpxor x3 ## 1, x2 ## 1, x2 ## 1; \
vpxor RK0, x0 ## 2, x0 ## 2; \
vpxor RK2, x2 ## 2, x2 ## 2; \
vpsrld $5, x0 ## 2, x4 ## 2; \
vpslld $(32 - 5), x0 ## 2, x0 ## 2; \
vpor x4 ## 2, x0 ## 2, x0 ## 2; \
vpxor RK3, x3 ## 2, x3 ## 2; \
vpxor RK1, x1 ## 2, x1 ## 2; \
vpsrld $22, x2 ## 2, x4 ## 2; \
vpslld $(32 - 22), x2 ## 2, x2 ## 2; \
vpor x4 ## 2, x2 ## 2, x2 ## 2; \
vpxor x3 ## 2, x2 ## 2, x2 ## 2; \
vpxor x3 ## 1, x0 ## 1, x0 ## 1; \
vpslld $7, x1 ## 1, x4 ## 1; \
vpxor x1 ## 1, x0 ## 1, x0 ## 1; \
vpxor x4 ## 1, x2 ## 1, x2 ## 1; \
vpsrld $1, x1 ## 1, x4 ## 1; \
vpslld $(32 - 1), x1 ## 1, x1 ## 1; \
vpor x4 ## 1, x1 ## 1, x1 ## 1; \
vpxor x3 ## 2, x0 ## 2, x0 ## 2; \
vpslld $7, x1 ## 2, x4 ## 2; \
vpxor x1 ## 2, x0 ## 2, x0 ## 2; \
vpxor x4 ## 2, x2 ## 2, x2 ## 2; \
vpsrld $1, x1 ## 2, x4 ## 2; \
vpslld $(32 - 1), x1 ## 2, x1 ## 2; \
vpor x4 ## 2, x1 ## 2, x1 ## 2; \
vpsrld $7, x3 ## 1, x4 ## 1; \
vpslld $(32 - 7), x3 ## 1, x3 ## 1; \
vpor x4 ## 1, x3 ## 1, x3 ## 1; \
vpxor x0 ## 1, x1 ## 1, x1 ## 1; \
vpslld $3, x0 ## 1, x4 ## 1; \
vpxor x4 ## 1, x3 ## 1, x3 ## 1; \
vpsrld $7, x3 ## 2, x4 ## 2; \
vpslld $(32 - 7), x3 ## 2, x3 ## 2; \
vpor x4 ## 2, x3 ## 2, x3 ## 2; \
vpxor x0 ## 2, x1 ## 2, x1 ## 2; \
vpslld $3, x0 ## 2, x4 ## 2; \
vpxor x4 ## 2, x3 ## 2, x3 ## 2; \
vpsrld $13, x0 ## 1, x4 ## 1; \
vpslld $(32 - 13), x0 ## 1, x0 ## 1; \
vpor x4 ## 1, x0 ## 1, x0 ## 1; \
vpxor x2 ## 1, x1 ## 1, x1 ## 1; \
vpxor x2 ## 1, x3 ## 1, x3 ## 1; \
vpsrld $3, x2 ## 1, x4 ## 1; \
vpslld $(32 - 3), x2 ## 1, x2 ## 1; \
vpor x4 ## 1, x2 ## 1, x2 ## 1; \
vpsrld $13, x0 ## 2, x4 ## 2; \
vpslld $(32 - 13), x0 ## 2, x0 ## 2; \
vpor x4 ## 2, x0 ## 2, x0 ## 2; \
vpxor x2 ## 2, x1 ## 2, x1 ## 2; \
vpxor x2 ## 2, x3 ## 2, x3 ## 2; \
vpsrld $3, x2 ## 2, x4 ## 2; \
vpslld $(32 - 3), x2 ## 2, x2 ## 2; \
vpor x4 ## 2, x2 ## 2, x2 ## 2;
#define S(SBOX, x0, x1, x2, x3, x4) \
SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2);
#define SP(SBOX, x0, x1, x2, x3, x4, i) \
get_key(i, 0, RK0); \
SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
get_key(i, 2, RK2); \
SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
get_key(i, 3, RK3); \
SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
get_key(i, 1, RK1); \
SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
vpunpckldq x1, x0, t0; \
vpunpckhdq x1, x0, t2; \
vpunpckldq x3, x2, t1; \
vpunpckhdq x3, x2, x3; \
\
vpunpcklqdq t1, t0, x0; \
vpunpckhqdq t1, t0, x1; \
vpunpcklqdq x3, t2, x2; \
vpunpckhqdq x3, t2, x3;
#define read_blocks(x0, x1, x2, x3, t0, t1, t2) \
transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
#define write_blocks(x0, x1, x2, x3, t0, t1, t2) \
transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
.align 8
__serpent_enc_blk8_avx:
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
* output:
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
*/
vpcmpeqd RNOT, RNOT, RNOT;
read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
K2(RA, RB, RC, RD, RE, 0);
S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1);
S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2);
S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3);
S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4);
S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5);
S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6);
S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7);
S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8);
S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9);
S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10);
S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11);
S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12);
S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13);
S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14);
S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15);
S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16);
S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17);
S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18);
S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19);
S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20);
S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21);
S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22);
S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23);
S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24);
S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25);
S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26);
S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27);
S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28);
S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29);
S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30);
S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31);
S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32);
write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_enc_blk8_avx)
.align 8
__serpent_dec_blk8_avx:
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
* output:
* RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2: decrypted blocks
*/
vpcmpeqd RNOT, RNOT, RNOT;
read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
K2(RA, RB, RC, RD, RE, 32);
SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31);
SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30);
SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29);
SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28);
SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27);
SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26);
SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25);
SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24);
SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23);
SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22);
SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21);
SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20);
SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19);
SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18);
SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17);
SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16);
SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15);
SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14);
SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13);
SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12);
SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11);
SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10);
SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9);
SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8);
SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7);
SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6);
SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5);
SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4);
SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3);
SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2);
SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1);
S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0);
write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_dec_blk8_avx)
ENTRY(serpent_ecb_enc_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
*/
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
call __serpent_enc_blk8_avx;
store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
ret;
ENDPROC(serpent_ecb_enc_8way_avx)
ENTRY(serpent_ecb_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
*/
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
call __serpent_dec_blk8_avx;
store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
ret;
ENDPROC(serpent_ecb_dec_8way_avx)
ENTRY(serpent_cbc_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
*/
load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
call __serpent_dec_blk8_avx;
store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
ret;
ENDPROC(serpent_cbc_dec_8way_avx)
ENTRY(serpent_ctr_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
* %rcx: iv (little endian, 128bit)
*/
load_ctr_8way(%rcx, .Lbswap128_mask, RA1, RB1, RC1, RD1, RA2, RB2, RC2,
RD2, RK0, RK1, RK2);
call __serpent_enc_blk8_avx;
store_ctr_8way(%rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
ret;
ENDPROC(serpent_ctr_8way_avx)
ENTRY(serpent_xts_enc_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
* %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
*/
/* regs <= src, dst <= IVs, regs <= regs xor IVs */
load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2,
RK0, RK1, RK2, .Lxts_gf128mul_and_shl1_mask);
call __serpent_enc_blk8_avx;
/* dst <= regs xor IVs(in dst) */
store_xts_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
ret;
ENDPROC(serpent_xts_enc_8way_avx)
ENTRY(serpent_xts_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
* %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸))
*/
/* regs <= src, dst <= IVs, regs <= regs xor IVs */
load_xts_8way(%rcx, %rdx, %rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2,
RK0, RK1, RK2, .Lxts_gf128mul_and_shl1_mask);
call __serpent_dec_blk8_avx;
/* dst <= regs xor IVs(in dst) */
store_xts_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
ret;
ENDPROC(serpent_xts_dec_8way_avx)
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