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linux/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
Denys Vlasenko e183914af0 crypto: x86 - make constants readonly, allow linker to merge them 
A lot of asm-optimized routines in arch/x86/crypto/ keep its
constants in .data. This is wrong, they should be on .rodata.

Mnay of these constants are the same in different modules.
For example, 128-bit shuffle mask 0x000102030405060708090A0B0C0D0E0F
exists in at least half a dozen places.

There is a way to let linker merge them and use just one copy.
The rules are as follows: mergeable objects of different sizes
should not share sections. You can't put them all in one .rodata
section, they will lose "mergeability".

GCC puts its mergeable constants in ".rodata.cstSIZE" sections,
or ".rodata.cstSIZE.<object_name>" if -fdata-sections is used.
This patch does the same:

	.section .rodata.cst16.SHUF_MASK, "aM", @progbits, 16

It is important that all data in such section consists of
16-byte elements, not larger ones, and there are no implicit
use of one element from another.

When this is not the case, use non-mergeable section:

	.section .rodata[.VAR_NAME], "a", @progbits

This reduces .data by ~15 kbytes:

    text    data     bss     dec      hex filename
11097415 2705840 2630712 16433967  fac32f vmlinux-prev.o
11112095 2690672 2630712 16433479  fac147 vmlinux.o

Merged objects are visible in System.map:

ffffffff81a28810 r POLY
ffffffff81a28810 r POLY
ffffffff81a28820 r TWOONE
ffffffff81a28820 r TWOONE
ffffffff81a28830 r PSHUFFLE_BYTE_FLIP_MASK <- merged regardless of
ffffffff81a28830 r SHUF_MASK   <------------- the name difference
ffffffff81a28830 r SHUF_MASK
ffffffff81a28830 r SHUF_MASK
..
ffffffff81a28d00 r K512 <- merged three identical 640-byte tables
ffffffff81a28d00 r K512
ffffffff81a28d00 r K512

Use of object names in section name suffixes is not strictly necessary,
but might help if someday link stage will use garbage collection
to eliminate unused sections (ld --gc-sections).

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: Josh Poimboeuf <jpoimboe@redhat.com>
CC: Xiaodong Liu <xiaodong.liu@intel.com>
CC: Megha Dey <megha.dey@intel.com>
CC: linux-crypto@vger.kernel.org
CC: x86@kernel.org
CC: linux-kernel@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-23 22:50:29 +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 <asm/frame.h>
#include "glue_helper-asm-avx.S"
.file "serpent-avx-x86_64-asm_64.S"
.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16
.align 16
.Lbswap128_mask:
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
.section .rodata.cst16.xts_gf128mul_and_shl1_mask, "aM", @progbits, 16
.align 16
.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
*/
FRAME_BEGIN
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);
FRAME_END
ret;
ENDPROC(serpent_ecb_enc_8way_avx)
ENTRY(serpent_ecb_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
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);
FRAME_END
ret;
ENDPROC(serpent_ecb_dec_8way_avx)
ENTRY(serpent_cbc_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
*/
FRAME_BEGIN
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);
FRAME_END
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)
*/
FRAME_BEGIN
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);
FRAME_END
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))
*/
FRAME_BEGIN
/* 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);
FRAME_END
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))
*/
FRAME_BEGIN
/* 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);
FRAME_END
ret;
ENDPROC(serpent_xts_dec_8way_avx)
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