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e183914af0
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>
780 lines
23 KiB
ArmAsm
780 lines
23 KiB
ArmAsm
########################################################################
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# Implement fast SHA-256 with AVX2 instructions. (x86_64)
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#
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# Copyright (C) 2013 Intel Corporation.
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#
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# Authors:
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# James Guilford <james.guilford@intel.com>
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# Kirk Yap <kirk.s.yap@intel.com>
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# Tim Chen <tim.c.chen@linux.intel.com>
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#
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# This software is available to you under a choice of one of two
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# licenses. You may choose to be licensed under the terms of the GNU
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# General Public License (GPL) Version 2, available from the file
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# COPYING in the main directory of this source tree, or the
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# OpenIB.org BSD license below:
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# - Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# - Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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########################################################################
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#
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# This code is described in an Intel White-Paper:
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# "Fast SHA-256 Implementations on Intel Architecture Processors"
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#
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# To find it, surf to http://www.intel.com/p/en_US/embedded
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# and search for that title.
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#
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########################################################################
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# This code schedules 2 blocks at a time, with 4 lanes per block
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########################################################################
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#ifdef CONFIG_AS_AVX2
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#include <linux/linkage.h>
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## assume buffers not aligned
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#define VMOVDQ vmovdqu
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################################ Define Macros
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# addm [mem], reg
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# Add reg to mem using reg-mem add and store
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.macro addm p1 p2
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add \p1, \p2
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mov \p2, \p1
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.endm
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################################
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X0 = %ymm4
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X1 = %ymm5
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X2 = %ymm6
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X3 = %ymm7
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# XMM versions of above
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XWORD0 = %xmm4
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XWORD1 = %xmm5
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XWORD2 = %xmm6
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XWORD3 = %xmm7
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XTMP0 = %ymm0
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XTMP1 = %ymm1
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XTMP2 = %ymm2
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XTMP3 = %ymm3
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XTMP4 = %ymm8
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XFER = %ymm9
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XTMP5 = %ymm11
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SHUF_00BA = %ymm10 # shuffle xBxA -> 00BA
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SHUF_DC00 = %ymm12 # shuffle xDxC -> DC00
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BYTE_FLIP_MASK = %ymm13
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X_BYTE_FLIP_MASK = %xmm13 # XMM version of BYTE_FLIP_MASK
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NUM_BLKS = %rdx # 3rd arg
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INP = %rsi # 2nd arg
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CTX = %rdi # 1st arg
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c = %ecx
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d = %r8d
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e = %edx # clobbers NUM_BLKS
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y3 = %esi # clobbers INP
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TBL = %rbp
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SRND = CTX # SRND is same register as CTX
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a = %eax
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b = %ebx
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f = %r9d
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g = %r10d
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h = %r11d
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old_h = %r11d
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T1 = %r12d
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y0 = %r13d
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y1 = %r14d
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y2 = %r15d
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_XFER_SIZE = 2*64*4 # 2 blocks, 64 rounds, 4 bytes/round
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_XMM_SAVE_SIZE = 0
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_INP_END_SIZE = 8
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_INP_SIZE = 8
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_CTX_SIZE = 8
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_RSP_SIZE = 8
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_XFER = 0
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_XMM_SAVE = _XFER + _XFER_SIZE
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_INP_END = _XMM_SAVE + _XMM_SAVE_SIZE
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_INP = _INP_END + _INP_END_SIZE
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_CTX = _INP + _INP_SIZE
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_RSP = _CTX + _CTX_SIZE
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STACK_SIZE = _RSP + _RSP_SIZE
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# rotate_Xs
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# Rotate values of symbols X0...X3
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.macro rotate_Xs
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X_ = X0
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X0 = X1
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X1 = X2
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X2 = X3
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X3 = X_
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.endm
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# ROTATE_ARGS
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# Rotate values of symbols a...h
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.macro ROTATE_ARGS
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old_h = h
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TMP_ = h
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h = g
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g = f
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f = e
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e = d
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d = c
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c = b
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b = a
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a = TMP_
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.endm
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.macro FOUR_ROUNDS_AND_SCHED disp
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################################### RND N + 0 ############################
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mov a, y3 # y3 = a # MAJA
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rorx $25, e, y0 # y0 = e >> 25 # S1A
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rorx $11, e, y1 # y1 = e >> 11 # S1B
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addl \disp(%rsp, SRND), h # h = k + w + h # --
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or c, y3 # y3 = a|c # MAJA
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vpalignr $4, X2, X3, XTMP0 # XTMP0 = W[-7]
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mov f, y2 # y2 = f # CH
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rorx $13, a, T1 # T1 = a >> 13 # S0B
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
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xor g, y2 # y2 = f^g # CH
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vpaddd X0, XTMP0, XTMP0 # XTMP0 = W[-7] + W[-16]# y1 = (e >> 6)# S1
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rorx $6, e, y1 # y1 = (e >> 6) # S1
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and e, y2 # y2 = (f^g)&e # CH
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
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rorx $22, a, y1 # y1 = a >> 22 # S0A
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add h, d # d = k + w + h + d # --
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and b, y3 # y3 = (a|c)&b # MAJA
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vpalignr $4, X0, X1, XTMP1 # XTMP1 = W[-15]
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
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rorx $2, a, T1 # T1 = (a >> 2) # S0
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xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
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vpsrld $7, XTMP1, XTMP2
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
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mov a, T1 # T1 = a # MAJB
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and c, T1 # T1 = a&c # MAJB
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add y0, y2 # y2 = S1 + CH # --
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vpslld $(32-7), XTMP1, XTMP3
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or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
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add y1, h # h = k + w + h + S0 # --
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add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
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vpor XTMP2, XTMP3, XTMP3 # XTMP3 = W[-15] ror 7
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vpsrld $18, XTMP1, XTMP2
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add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
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add y3, h # h = t1 + S0 + MAJ # --
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ROTATE_ARGS
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################################### RND N + 1 ############################
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mov a, y3 # y3 = a # MAJA
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rorx $25, e, y0 # y0 = e >> 25 # S1A
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rorx $11, e, y1 # y1 = e >> 11 # S1B
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offset = \disp + 1*4
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addl offset(%rsp, SRND), h # h = k + w + h # --
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or c, y3 # y3 = a|c # MAJA
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vpsrld $3, XTMP1, XTMP4 # XTMP4 = W[-15] >> 3
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mov f, y2 # y2 = f # CH
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rorx $13, a, T1 # T1 = a >> 13 # S0B
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
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xor g, y2 # y2 = f^g # CH
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rorx $6, e, y1 # y1 = (e >> 6) # S1
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
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rorx $22, a, y1 # y1 = a >> 22 # S0A
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and e, y2 # y2 = (f^g)&e # CH
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add h, d # d = k + w + h + d # --
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vpslld $(32-18), XTMP1, XTMP1
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and b, y3 # y3 = (a|c)&b # MAJA
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
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vpxor XTMP1, XTMP3, XTMP3
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rorx $2, a, T1 # T1 = (a >> 2) # S0
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xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
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vpxor XTMP2, XTMP3, XTMP3 # XTMP3 = W[-15] ror 7 ^ W[-15] ror 18
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
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mov a, T1 # T1 = a # MAJB
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and c, T1 # T1 = a&c # MAJB
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add y0, y2 # y2 = S1 + CH # --
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vpxor XTMP4, XTMP3, XTMP1 # XTMP1 = s0
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vpshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA}
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or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
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add y1, h # h = k + w + h + S0 # --
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vpaddd XTMP1, XTMP0, XTMP0 # XTMP0 = W[-16] + W[-7] + s0
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add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
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add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
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add y3, h # h = t1 + S0 + MAJ # --
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vpsrld $10, XTMP2, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA}
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ROTATE_ARGS
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################################### RND N + 2 ############################
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mov a, y3 # y3 = a # MAJA
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rorx $25, e, y0 # y0 = e >> 25 # S1A
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offset = \disp + 2*4
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addl offset(%rsp, SRND), h # h = k + w + h # --
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vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] ror 19 {xBxA}
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rorx $11, e, y1 # y1 = e >> 11 # S1B
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or c, y3 # y3 = a|c # MAJA
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mov f, y2 # y2 = f # CH
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xor g, y2 # y2 = f^g # CH
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rorx $13, a, T1 # T1 = a >> 13 # S0B
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
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vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] ror 17 {xBxA}
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and e, y2 # y2 = (f^g)&e # CH
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rorx $6, e, y1 # y1 = (e >> 6) # S1
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vpxor XTMP3, XTMP2, XTMP2
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add h, d # d = k + w + h + d # --
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and b, y3 # y3 = (a|c)&b # MAJA
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
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rorx $22, a, y1 # y1 = a >> 22 # S0A
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vpxor XTMP2, XTMP4, XTMP4 # XTMP4 = s1 {xBxA}
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xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
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vpshufb SHUF_00BA, XTMP4, XTMP4 # XTMP4 = s1 {00BA}
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
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rorx $2, a ,T1 # T1 = (a >> 2) # S0
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vpaddd XTMP4, XTMP0, XTMP0 # XTMP0 = {..., ..., W[1], W[0]}
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
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mov a, T1 # T1 = a # MAJB
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and c, T1 # T1 = a&c # MAJB
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add y0, y2 # y2 = S1 + CH # --
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vpshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {DDCC}
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or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
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add y1,h # h = k + w + h + S0 # --
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add y2,d # d = k + w + h + d + S1 + CH = d + t1 # --
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add y2,h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
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add y3,h # h = t1 + S0 + MAJ # --
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ROTATE_ARGS
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################################### RND N + 3 ############################
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mov a, y3 # y3 = a # MAJA
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rorx $25, e, y0 # y0 = e >> 25 # S1A
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rorx $11, e, y1 # y1 = e >> 11 # S1B
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offset = \disp + 3*4
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addl offset(%rsp, SRND), h # h = k + w + h # --
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or c, y3 # y3 = a|c # MAJA
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vpsrld $10, XTMP2, XTMP5 # XTMP5 = W[-2] >> 10 {DDCC}
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mov f, y2 # y2 = f # CH
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rorx $13, a, T1 # T1 = a >> 13 # S0B
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
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xor g, y2 # y2 = f^g # CH
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vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] ror 19 {xDxC}
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rorx $6, e, y1 # y1 = (e >> 6) # S1
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and e, y2 # y2 = (f^g)&e # CH
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add h, d # d = k + w + h + d # --
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and b, y3 # y3 = (a|c)&b # MAJA
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vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] ror 17 {xDxC}
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
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xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
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vpxor XTMP3, XTMP2, XTMP2
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rorx $22, a, y1 # y1 = a >> 22 # S0A
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add y0, y2 # y2 = S1 + CH # --
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vpxor XTMP2, XTMP5, XTMP5 # XTMP5 = s1 {xDxC}
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
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add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
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rorx $2, a, T1 # T1 = (a >> 2) # S0
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vpshufb SHUF_DC00, XTMP5, XTMP5 # XTMP5 = s1 {DC00}
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vpaddd XTMP0, XTMP5, X0 # X0 = {W[3], W[2], W[1], W[0]}
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
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mov a, T1 # T1 = a # MAJB
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and c, T1 # T1 = a&c # MAJB
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or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
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add y1, h # h = k + w + h + S0 # --
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add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
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add y3, h # h = t1 + S0 + MAJ # --
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ROTATE_ARGS
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rotate_Xs
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.endm
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.macro DO_4ROUNDS disp
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################################### RND N + 0 ###########################
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mov f, y2 # y2 = f # CH
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rorx $25, e, y0 # y0 = e >> 25 # S1A
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rorx $11, e, y1 # y1 = e >> 11 # S1B
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xor g, y2 # y2 = f^g # CH
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
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rorx $6, e, y1 # y1 = (e >> 6) # S1
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and e, y2 # y2 = (f^g)&e # CH
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xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
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rorx $13, a, T1 # T1 = a >> 13 # S0B
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xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
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rorx $22, a, y1 # y1 = a >> 22 # S0A
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mov a, y3 # y3 = a # MAJA
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xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
|
|
rorx $2, a, T1 # T1 = (a >> 2) # S0
|
|
addl \disp(%rsp, SRND), h # h = k + w + h # --
|
|
or c, y3 # y3 = a|c # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
|
|
mov a, T1 # T1 = a # MAJB
|
|
and b, y3 # y3 = (a|c)&b # MAJA
|
|
and c, T1 # T1 = a&c # MAJB
|
|
add y0, y2 # y2 = S1 + CH # --
|
|
|
|
|
|
add h, d # d = k + w + h + d # --
|
|
or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
|
|
add y1, h # h = k + w + h + S0 # --
|
|
add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
|
|
|
|
ROTATE_ARGS
|
|
|
|
################################### RND N + 1 ###########################
|
|
|
|
add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
|
|
mov f, y2 # y2 = f # CH
|
|
rorx $25, e, y0 # y0 = e >> 25 # S1A
|
|
rorx $11, e, y1 # y1 = e >> 11 # S1B
|
|
xor g, y2 # y2 = f^g # CH
|
|
|
|
xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
|
|
rorx $6, e, y1 # y1 = (e >> 6) # S1
|
|
and e, y2 # y2 = (f^g)&e # CH
|
|
add y3, old_h # h = t1 + S0 + MAJ # --
|
|
|
|
xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
|
|
rorx $13, a, T1 # T1 = a >> 13 # S0B
|
|
xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
|
|
rorx $22, a, y1 # y1 = a >> 22 # S0A
|
|
mov a, y3 # y3 = a # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
|
|
rorx $2, a, T1 # T1 = (a >> 2) # S0
|
|
offset = 4*1 + \disp
|
|
addl offset(%rsp, SRND), h # h = k + w + h # --
|
|
or c, y3 # y3 = a|c # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
|
|
mov a, T1 # T1 = a # MAJB
|
|
and b, y3 # y3 = (a|c)&b # MAJA
|
|
and c, T1 # T1 = a&c # MAJB
|
|
add y0, y2 # y2 = S1 + CH # --
|
|
|
|
|
|
add h, d # d = k + w + h + d # --
|
|
or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
|
|
add y1, h # h = k + w + h + S0 # --
|
|
|
|
add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
|
|
|
|
ROTATE_ARGS
|
|
|
|
################################### RND N + 2 ##############################
|
|
|
|
add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
|
|
mov f, y2 # y2 = f # CH
|
|
rorx $25, e, y0 # y0 = e >> 25 # S1A
|
|
rorx $11, e, y1 # y1 = e >> 11 # S1B
|
|
xor g, y2 # y2 = f^g # CH
|
|
|
|
xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
|
|
rorx $6, e, y1 # y1 = (e >> 6) # S1
|
|
and e, y2 # y2 = (f^g)&e # CH
|
|
add y3, old_h # h = t1 + S0 + MAJ # --
|
|
|
|
xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
|
|
rorx $13, a, T1 # T1 = a >> 13 # S0B
|
|
xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
|
|
rorx $22, a, y1 # y1 = a >> 22 # S0A
|
|
mov a, y3 # y3 = a # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
|
|
rorx $2, a, T1 # T1 = (a >> 2) # S0
|
|
offset = 4*2 + \disp
|
|
addl offset(%rsp, SRND), h # h = k + w + h # --
|
|
or c, y3 # y3 = a|c # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
|
|
mov a, T1 # T1 = a # MAJB
|
|
and b, y3 # y3 = (a|c)&b # MAJA
|
|
and c, T1 # T1 = a&c # MAJB
|
|
add y0, y2 # y2 = S1 + CH # --
|
|
|
|
|
|
add h, d # d = k + w + h + d # --
|
|
or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
|
|
add y1, h # h = k + w + h + S0 # --
|
|
|
|
add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
|
|
|
|
ROTATE_ARGS
|
|
|
|
################################### RND N + 3 ###########################
|
|
|
|
add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
|
|
mov f, y2 # y2 = f # CH
|
|
rorx $25, e, y0 # y0 = e >> 25 # S1A
|
|
rorx $11, e, y1 # y1 = e >> 11 # S1B
|
|
xor g, y2 # y2 = f^g # CH
|
|
|
|
xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
|
|
rorx $6, e, y1 # y1 = (e >> 6) # S1
|
|
and e, y2 # y2 = (f^g)&e # CH
|
|
add y3, old_h # h = t1 + S0 + MAJ # --
|
|
|
|
xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
|
|
rorx $13, a, T1 # T1 = a >> 13 # S0B
|
|
xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
|
|
rorx $22, a, y1 # y1 = a >> 22 # S0A
|
|
mov a, y3 # y3 = a # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
|
|
rorx $2, a, T1 # T1 = (a >> 2) # S0
|
|
offset = 4*3 + \disp
|
|
addl offset(%rsp, SRND), h # h = k + w + h # --
|
|
or c, y3 # y3 = a|c # MAJA
|
|
|
|
xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
|
|
mov a, T1 # T1 = a # MAJB
|
|
and b, y3 # y3 = (a|c)&b # MAJA
|
|
and c, T1 # T1 = a&c # MAJB
|
|
add y0, y2 # y2 = S1 + CH # --
|
|
|
|
|
|
add h, d # d = k + w + h + d # --
|
|
or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
|
|
add y1, h # h = k + w + h + S0 # --
|
|
|
|
add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
|
|
|
|
|
|
add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
|
|
|
|
add y3, h # h = t1 + S0 + MAJ # --
|
|
|
|
ROTATE_ARGS
|
|
|
|
.endm
|
|
|
|
########################################################################
|
|
## void sha256_transform_rorx(void *input_data, UINT32 digest[8], UINT64 num_blks)
|
|
## arg 1 : pointer to digest
|
|
## arg 2 : pointer to input data
|
|
## arg 3 : Num blocks
|
|
########################################################################
|
|
.text
|
|
ENTRY(sha256_transform_rorx)
|
|
.align 32
|
|
pushq %rbx
|
|
pushq %rbp
|
|
pushq %r12
|
|
pushq %r13
|
|
pushq %r14
|
|
pushq %r15
|
|
|
|
mov %rsp, %rax
|
|
subq $STACK_SIZE, %rsp
|
|
and $-32, %rsp # align rsp to 32 byte boundary
|
|
mov %rax, _RSP(%rsp)
|
|
|
|
|
|
shl $6, NUM_BLKS # convert to bytes
|
|
jz done_hash
|
|
lea -64(INP, NUM_BLKS), NUM_BLKS # pointer to last block
|
|
mov NUM_BLKS, _INP_END(%rsp)
|
|
|
|
cmp NUM_BLKS, INP
|
|
je only_one_block
|
|
|
|
## load initial digest
|
|
mov (CTX), a
|
|
mov 4*1(CTX), b
|
|
mov 4*2(CTX), c
|
|
mov 4*3(CTX), d
|
|
mov 4*4(CTX), e
|
|
mov 4*5(CTX), f
|
|
mov 4*6(CTX), g
|
|
mov 4*7(CTX), h
|
|
|
|
vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
|
|
vmovdqa _SHUF_00BA(%rip), SHUF_00BA
|
|
vmovdqa _SHUF_DC00(%rip), SHUF_DC00
|
|
|
|
mov CTX, _CTX(%rsp)
|
|
|
|
loop0:
|
|
lea K256(%rip), TBL
|
|
|
|
## Load first 16 dwords from two blocks
|
|
VMOVDQ 0*32(INP),XTMP0
|
|
VMOVDQ 1*32(INP),XTMP1
|
|
VMOVDQ 2*32(INP),XTMP2
|
|
VMOVDQ 3*32(INP),XTMP3
|
|
|
|
## byte swap data
|
|
vpshufb BYTE_FLIP_MASK, XTMP0, XTMP0
|
|
vpshufb BYTE_FLIP_MASK, XTMP1, XTMP1
|
|
vpshufb BYTE_FLIP_MASK, XTMP2, XTMP2
|
|
vpshufb BYTE_FLIP_MASK, XTMP3, XTMP3
|
|
|
|
## transpose data into high/low halves
|
|
vperm2i128 $0x20, XTMP2, XTMP0, X0
|
|
vperm2i128 $0x31, XTMP2, XTMP0, X1
|
|
vperm2i128 $0x20, XTMP3, XTMP1, X2
|
|
vperm2i128 $0x31, XTMP3, XTMP1, X3
|
|
|
|
last_block_enter:
|
|
add $64, INP
|
|
mov INP, _INP(%rsp)
|
|
|
|
## schedule 48 input dwords, by doing 3 rounds of 12 each
|
|
xor SRND, SRND
|
|
|
|
.align 16
|
|
loop1:
|
|
vpaddd 0*32(TBL, SRND), X0, XFER
|
|
vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
|
|
FOUR_ROUNDS_AND_SCHED _XFER + 0*32
|
|
|
|
vpaddd 1*32(TBL, SRND), X0, XFER
|
|
vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
|
|
FOUR_ROUNDS_AND_SCHED _XFER + 1*32
|
|
|
|
vpaddd 2*32(TBL, SRND), X0, XFER
|
|
vmovdqa XFER, 2*32+_XFER(%rsp, SRND)
|
|
FOUR_ROUNDS_AND_SCHED _XFER + 2*32
|
|
|
|
vpaddd 3*32(TBL, SRND), X0, XFER
|
|
vmovdqa XFER, 3*32+_XFER(%rsp, SRND)
|
|
FOUR_ROUNDS_AND_SCHED _XFER + 3*32
|
|
|
|
add $4*32, SRND
|
|
cmp $3*4*32, SRND
|
|
jb loop1
|
|
|
|
loop2:
|
|
## Do last 16 rounds with no scheduling
|
|
vpaddd 0*32(TBL, SRND), X0, XFER
|
|
vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
|
|
DO_4ROUNDS _XFER + 0*32
|
|
vpaddd 1*32(TBL, SRND), X1, XFER
|
|
vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
|
|
DO_4ROUNDS _XFER + 1*32
|
|
add $2*32, SRND
|
|
|
|
vmovdqa X2, X0
|
|
vmovdqa X3, X1
|
|
|
|
cmp $4*4*32, SRND
|
|
jb loop2
|
|
|
|
mov _CTX(%rsp), CTX
|
|
mov _INP(%rsp), INP
|
|
|
|
addm (4*0)(CTX),a
|
|
addm (4*1)(CTX),b
|
|
addm (4*2)(CTX),c
|
|
addm (4*3)(CTX),d
|
|
addm (4*4)(CTX),e
|
|
addm (4*5)(CTX),f
|
|
addm (4*6)(CTX),g
|
|
addm (4*7)(CTX),h
|
|
|
|
cmp _INP_END(%rsp), INP
|
|
ja done_hash
|
|
|
|
#### Do second block using previously scheduled results
|
|
xor SRND, SRND
|
|
.align 16
|
|
loop3:
|
|
DO_4ROUNDS _XFER + 0*32 + 16
|
|
DO_4ROUNDS _XFER + 1*32 + 16
|
|
add $2*32, SRND
|
|
cmp $4*4*32, SRND
|
|
jb loop3
|
|
|
|
mov _CTX(%rsp), CTX
|
|
mov _INP(%rsp), INP
|
|
add $64, INP
|
|
|
|
addm (4*0)(CTX),a
|
|
addm (4*1)(CTX),b
|
|
addm (4*2)(CTX),c
|
|
addm (4*3)(CTX),d
|
|
addm (4*4)(CTX),e
|
|
addm (4*5)(CTX),f
|
|
addm (4*6)(CTX),g
|
|
addm (4*7)(CTX),h
|
|
|
|
cmp _INP_END(%rsp), INP
|
|
jb loop0
|
|
ja done_hash
|
|
|
|
do_last_block:
|
|
#### do last block
|
|
lea K256(%rip), TBL
|
|
|
|
VMOVDQ 0*16(INP),XWORD0
|
|
VMOVDQ 1*16(INP),XWORD1
|
|
VMOVDQ 2*16(INP),XWORD2
|
|
VMOVDQ 3*16(INP),XWORD3
|
|
|
|
vpshufb X_BYTE_FLIP_MASK, XWORD0, XWORD0
|
|
vpshufb X_BYTE_FLIP_MASK, XWORD1, XWORD1
|
|
vpshufb X_BYTE_FLIP_MASK, XWORD2, XWORD2
|
|
vpshufb X_BYTE_FLIP_MASK, XWORD3, XWORD3
|
|
|
|
jmp last_block_enter
|
|
|
|
only_one_block:
|
|
|
|
## load initial digest
|
|
mov (4*0)(CTX),a
|
|
mov (4*1)(CTX),b
|
|
mov (4*2)(CTX),c
|
|
mov (4*3)(CTX),d
|
|
mov (4*4)(CTX),e
|
|
mov (4*5)(CTX),f
|
|
mov (4*6)(CTX),g
|
|
mov (4*7)(CTX),h
|
|
|
|
vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
|
|
vmovdqa _SHUF_00BA(%rip), SHUF_00BA
|
|
vmovdqa _SHUF_DC00(%rip), SHUF_DC00
|
|
|
|
mov CTX, _CTX(%rsp)
|
|
jmp do_last_block
|
|
|
|
done_hash:
|
|
|
|
mov _RSP(%rsp), %rsp
|
|
|
|
popq %r15
|
|
popq %r14
|
|
popq %r13
|
|
popq %r12
|
|
popq %rbp
|
|
popq %rbx
|
|
ret
|
|
ENDPROC(sha256_transform_rorx)
|
|
|
|
.section .rodata.cst512.K256, "aM", @progbits, 512
|
|
.align 64
|
|
K256:
|
|
.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
|
|
.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
|
|
.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
|
|
.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
|
|
.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
|
|
.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
|
|
.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
|
|
.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
|
|
.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
|
|
.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
|
|
.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
|
|
.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
|
|
.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
|
|
.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
|
|
.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
|
|
.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
|
|
.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
|
|
.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
|
|
.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
|
|
.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
|
|
.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
|
|
.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
|
|
.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
|
|
.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
|
|
.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
|
|
.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
|
|
.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
|
|
.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
|
|
.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
|
|
.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
|
|
.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
|
|
.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
|
|
|
|
.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32
|
|
.align 32
|
|
PSHUFFLE_BYTE_FLIP_MASK:
|
|
.octa 0x0c0d0e0f08090a0b0405060700010203,0x0c0d0e0f08090a0b0405060700010203
|
|
|
|
# shuffle xBxA -> 00BA
|
|
.section .rodata.cst32._SHUF_00BA, "aM", @progbits, 32
|
|
.align 32
|
|
_SHUF_00BA:
|
|
.octa 0xFFFFFFFFFFFFFFFF0b0a090803020100,0xFFFFFFFFFFFFFFFF0b0a090803020100
|
|
|
|
# shuffle xDxC -> DC00
|
|
.section .rodata.cst32._SHUF_DC00, "aM", @progbits, 32
|
|
.align 32
|
|
_SHUF_DC00:
|
|
.octa 0x0b0a090803020100FFFFFFFFFFFFFFFF,0x0b0a090803020100FFFFFFFFFFFFFFFF
|
|
|
|
#endif
|