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mirror_zfs/module/icp/asm-x86_64/modes/ghash-x86_64.S
Attila Fülöp 31b160f0a6
ICP: Improve AES-GCM performance 
Currently SIMD accelerated AES-GCM performance is limited by two
factors:

a. The need to disable preemption and interrupts and save the FPU
state before using it and to do the reverse when done. Due to the
way the code is organized (see (b) below) we have to pay this price
twice for each 16 byte GCM block processed.

b. Most processing is done in C, operating on single GCM blocks.
The use of SIMD instructions is limited to the AES encryption of the
counter block (AES-NI) and the Galois multiplication (PCLMULQDQ).
This leads to the FPU not being fully utilized for crypto
operations.

To solve (a) we do crypto processing in larger chunks while owning
the FPU. An `icp_gcm_avx_chunk_size` module parameter was introduced
to make this chunk size tweakable. It defaults to 32 KiB. This step
alone roughly doubles performance. (b) is tackled by porting and
using the highly optimized openssl AES-GCM assembler routines, which
do all the processing (CTR, AES, GMULT) in a single routine. Both
steps together result in up to 32x reduction of the time spend in
the en/decryption routines, leading up to approximately 12x
throughput increase for large (128 KiB) blocks.

Lastly, this commit changes the default encryption algorithm from
AES-CCM to AES-GCM when setting the `encryption=on` property.

Reviewed-By: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Jason King <jason.king@joyent.com>
Reviewed-By: Tom Caputi <tcaputi@datto.com>
Reviewed-By: Richard Laager <rlaager@wiktel.com>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #9749
2020-02-10 12:59:50 -08:00

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# Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the Apache License 2.0 (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
#
# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# March, June 2010
#
# The module implements "4-bit" GCM GHASH function and underlying
# single multiplication operation in GF(2^128). "4-bit" means that
# it uses 256 bytes per-key table [+128 bytes shared table]. GHASH
# function features so called "528B" variant utilizing additional
# 256+16 bytes of per-key storage [+512 bytes shared table].
# Performance results are for this streamed GHASH subroutine and are
# expressed in cycles per processed byte, less is better:
#
# gcc 3.4.x(*) assembler
#
# P4 28.6 14.0 +100%
# Opteron 19.3 7.7 +150%
# Core2 17.8 8.1(**) +120%
# Atom 31.6 16.8 +88%
# VIA Nano 21.8 10.1 +115%
#
# (*) comparison is not completely fair, because C results are
# for vanilla "256B" implementation, while assembler results
# are for "528B";-)
# (**) it's mystery [to me] why Core2 result is not same as for
# Opteron;
# May 2010
#
# Add PCLMULQDQ version performing at 2.02 cycles per processed byte.
# See ghash-x86.pl for background information and details about coding
# techniques.
#
# Special thanks to David Woodhouse for providing access to a
# Westmere-based system on behalf of Intel Open Source Technology Centre.
# December 2012
#
# Overhaul: aggregate Karatsuba post-processing, improve ILP in
# reduction_alg9, increase reduction aggregate factor to 4x. As for
# the latter. ghash-x86.pl discusses that it makes lesser sense to
# increase aggregate factor. Then why increase here? Critical path
# consists of 3 independent pclmulqdq instructions, Karatsuba post-
# processing and reduction. "On top" of this we lay down aggregated
# multiplication operations, triplets of independent pclmulqdq's. As
# issue rate for pclmulqdq is limited, it makes lesser sense to
# aggregate more multiplications than it takes to perform remaining
# non-multiplication operations. 2x is near-optimal coefficient for
# contemporary Intel CPUs (therefore modest improvement coefficient),
# but not for Bulldozer. Latter is because logical SIMD operations
# are twice as slow in comparison to Intel, so that critical path is
# longer. A CPU with higher pclmulqdq issue rate would also benefit
# from higher aggregate factor...
#
# Westmere 1.78(+13%)
# Sandy Bridge 1.80(+8%)
# Ivy Bridge 1.80(+7%)
# Haswell 0.55(+93%) (if system doesn't support AVX)
# Broadwell 0.45(+110%)(if system doesn't support AVX)
# Skylake 0.44(+110%)(if system doesn't support AVX)
# Bulldozer 1.49(+27%)
# Silvermont 2.88(+13%)
# Knights L 2.12(-) (if system doesn't support AVX)
# Goldmont 1.08(+24%)
# March 2013
#
# ... 8x aggregate factor AVX code path is using reduction algorithm
# suggested by Shay Gueron[1]. Even though contemporary AVX-capable
# CPUs such as Sandy and Ivy Bridge can execute it, the code performs
# sub-optimally in comparison to above mentioned version. But thanks
# to Ilya Albrekht and Max Locktyukhin of Intel Corp. we knew that
# it performs in 0.41 cycles per byte on Haswell processor, in
# 0.29 on Broadwell, and in 0.36 on Skylake.
#
# Knights Landing achieves 1.09 cpb.
#
# [1] http://rt.openssl.org/Ticket/Display.html?id=2900&user=guest&pass=guest
# Generated once from
# https://github.com/openssl/openssl/blob/5ffc3324/crypto/modes/asm/ghash-x86_64.pl
# and modified for ICP. Modification are kept at a bare minimum to ease later
# upstream merges.
#if defined(__x86_64__) && defined(HAVE_AVX) && \
defined(HAVE_AES) && defined(HAVE_PCLMULQDQ)
.text
.globl gcm_gmult_clmul
.type gcm_gmult_clmul,@function
.align 16
gcm_gmult_clmul:
.cfi_startproc
.L_gmult_clmul:
movdqu (%rdi),%xmm0
movdqa .Lbswap_mask(%rip),%xmm5
movdqu (%rsi),%xmm2
movdqu 32(%rsi),%xmm4
.byte 102,15,56,0,197
movdqa %xmm0,%xmm1
pshufd $78,%xmm0,%xmm3
pxor %xmm0,%xmm3
.byte 102,15,58,68,194,0
.byte 102,15,58,68,202,17
.byte 102,15,58,68,220,0
pxor %xmm0,%xmm3
pxor %xmm1,%xmm3
movdqa %xmm3,%xmm4
psrldq $8,%xmm3
pslldq $8,%xmm4
pxor %xmm3,%xmm1
pxor %xmm4,%xmm0
movdqa %xmm0,%xmm4
movdqa %xmm0,%xmm3
psllq $5,%xmm0
pxor %xmm0,%xmm3
psllq $1,%xmm0
pxor %xmm3,%xmm0
psllq $57,%xmm0
movdqa %xmm0,%xmm3
pslldq $8,%xmm0
psrldq $8,%xmm3
pxor %xmm4,%xmm0
pxor %xmm3,%xmm1
movdqa %xmm0,%xmm4
psrlq $1,%xmm0
pxor %xmm4,%xmm1
pxor %xmm0,%xmm4
psrlq $5,%xmm0
pxor %xmm4,%xmm0
psrlq $1,%xmm0
pxor %xmm1,%xmm0
.byte 102,15,56,0,197
movdqu %xmm0,(%rdi)
.byte 0xf3,0xc3
.cfi_endproc
.size gcm_gmult_clmul,.-gcm_gmult_clmul
.globl gcm_init_htab_avx
.type gcm_init_htab_avx,@function
.align 32
gcm_init_htab_avx:
.cfi_startproc
vzeroupper
vmovdqu (%rsi),%xmm2
// KCF/ICP stores H in network byte order with the hi qword first
// so we need to swap all bytes, not the 2 qwords.
vmovdqu .Lbswap_mask(%rip),%xmm4
vpshufb %xmm4,%xmm2,%xmm2
vpshufd $255,%xmm2,%xmm4
vpsrlq $63,%xmm2,%xmm3
vpsllq $1,%xmm2,%xmm2
vpxor %xmm5,%xmm5,%xmm5
vpcmpgtd %xmm4,%xmm5,%xmm5
vpslldq $8,%xmm3,%xmm3
vpor %xmm3,%xmm2,%xmm2
vpand .L0x1c2_polynomial(%rip),%xmm5,%xmm5
vpxor %xmm5,%xmm2,%xmm2
vpunpckhqdq %xmm2,%xmm2,%xmm6
vmovdqa %xmm2,%xmm0
vpxor %xmm2,%xmm6,%xmm6
movq $4,%r10
jmp .Linit_start_avx
.align 32
.Linit_loop_avx:
vpalignr $8,%xmm3,%xmm4,%xmm5
vmovdqu %xmm5,-16(%rdi)
vpunpckhqdq %xmm0,%xmm0,%xmm3
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x11,%xmm2,%xmm0,%xmm1
vpclmulqdq $0x00,%xmm2,%xmm0,%xmm0
vpclmulqdq $0x00,%xmm6,%xmm3,%xmm3
vpxor %xmm0,%xmm1,%xmm4
vpxor %xmm4,%xmm3,%xmm3
vpslldq $8,%xmm3,%xmm4
vpsrldq $8,%xmm3,%xmm3
vpxor %xmm4,%xmm0,%xmm0
vpxor %xmm3,%xmm1,%xmm1
vpsllq $57,%xmm0,%xmm3
vpsllq $62,%xmm0,%xmm4
vpxor %xmm3,%xmm4,%xmm4
vpsllq $63,%xmm0,%xmm3
vpxor %xmm3,%xmm4,%xmm4
vpslldq $8,%xmm4,%xmm3
vpsrldq $8,%xmm4,%xmm4
vpxor %xmm3,%xmm0,%xmm0
vpxor %xmm4,%xmm1,%xmm1
vpsrlq $1,%xmm0,%xmm4
vpxor %xmm0,%xmm1,%xmm1
vpxor %xmm4,%xmm0,%xmm0
vpsrlq $5,%xmm4,%xmm4
vpxor %xmm4,%xmm0,%xmm0
vpsrlq $1,%xmm0,%xmm0
vpxor %xmm1,%xmm0,%xmm0
.Linit_start_avx:
vmovdqa %xmm0,%xmm5
vpunpckhqdq %xmm0,%xmm0,%xmm3
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x11,%xmm2,%xmm0,%xmm1
vpclmulqdq $0x00,%xmm2,%xmm0,%xmm0
vpclmulqdq $0x00,%xmm6,%xmm3,%xmm3
vpxor %xmm0,%xmm1,%xmm4
vpxor %xmm4,%xmm3,%xmm3
vpslldq $8,%xmm3,%xmm4
vpsrldq $8,%xmm3,%xmm3
vpxor %xmm4,%xmm0,%xmm0
vpxor %xmm3,%xmm1,%xmm1
vpsllq $57,%xmm0,%xmm3
vpsllq $62,%xmm0,%xmm4
vpxor %xmm3,%xmm4,%xmm4
vpsllq $63,%xmm0,%xmm3
vpxor %xmm3,%xmm4,%xmm4
vpslldq $8,%xmm4,%xmm3
vpsrldq $8,%xmm4,%xmm4
vpxor %xmm3,%xmm0,%xmm0
vpxor %xmm4,%xmm1,%xmm1
vpsrlq $1,%xmm0,%xmm4
vpxor %xmm0,%xmm1,%xmm1
vpxor %xmm4,%xmm0,%xmm0
vpsrlq $5,%xmm4,%xmm4
vpxor %xmm4,%xmm0,%xmm0
vpsrlq $1,%xmm0,%xmm0
vpxor %xmm1,%xmm0,%xmm0
vpshufd $78,%xmm5,%xmm3
vpshufd $78,%xmm0,%xmm4
vpxor %xmm5,%xmm3,%xmm3
vmovdqu %xmm5,0(%rdi)
vpxor %xmm0,%xmm4,%xmm4
vmovdqu %xmm0,16(%rdi)
leaq 48(%rdi),%rdi
subq $1,%r10
jnz .Linit_loop_avx
vpalignr $8,%xmm4,%xmm3,%xmm5
vmovdqu %xmm5,-16(%rdi)
vzeroupper
.byte 0xf3,0xc3
.cfi_endproc
.size gcm_init_htab_avx,.-gcm_init_htab_avx
.globl gcm_gmult_avx
.type gcm_gmult_avx,@function
.align 32
gcm_gmult_avx:
.cfi_startproc
jmp .L_gmult_clmul
.cfi_endproc
.size gcm_gmult_avx,.-gcm_gmult_avx
.globl gcm_ghash_avx
.type gcm_ghash_avx,@function
.align 32
gcm_ghash_avx:
.cfi_startproc
vzeroupper
vmovdqu (%rdi),%xmm10
leaq .L0x1c2_polynomial(%rip),%r10
leaq 64(%rsi),%rsi
vmovdqu .Lbswap_mask(%rip),%xmm13
vpshufb %xmm13,%xmm10,%xmm10
cmpq $0x80,%rcx
jb .Lshort_avx
subq $0x80,%rcx
vmovdqu 112(%rdx),%xmm14
vmovdqu 0-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm14
vmovdqu 32-64(%rsi),%xmm7
vpunpckhqdq %xmm14,%xmm14,%xmm9
vmovdqu 96(%rdx),%xmm15
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpxor %xmm14,%xmm9,%xmm9
vpshufb %xmm13,%xmm15,%xmm15
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 16-64(%rsi),%xmm6
vpunpckhqdq %xmm15,%xmm15,%xmm8
vmovdqu 80(%rdx),%xmm14
vpclmulqdq $0x00,%xmm7,%xmm9,%xmm2
vpxor %xmm15,%xmm8,%xmm8
vpshufb %xmm13,%xmm14,%xmm14
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm3
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm4
vmovdqu 48-64(%rsi),%xmm6
vpxor %xmm14,%xmm9,%xmm9
vmovdqu 64(%rdx),%xmm15
vpclmulqdq $0x10,%xmm7,%xmm8,%xmm5
vmovdqu 80-64(%rsi),%xmm7
vpshufb %xmm13,%xmm15,%xmm15
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpxor %xmm1,%xmm4,%xmm4
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 64-64(%rsi),%xmm6
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm9,%xmm2
vpxor %xmm15,%xmm8,%xmm8
vmovdqu 48(%rdx),%xmm14
vpxor %xmm3,%xmm0,%xmm0
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm3
vpxor %xmm4,%xmm1,%xmm1
vpshufb %xmm13,%xmm14,%xmm14
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm4
vmovdqu 96-64(%rsi),%xmm6
vpxor %xmm5,%xmm2,%xmm2
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpclmulqdq $0x10,%xmm7,%xmm8,%xmm5
vmovdqu 128-64(%rsi),%xmm7
vpxor %xmm14,%xmm9,%xmm9
vmovdqu 32(%rdx),%xmm15
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpxor %xmm1,%xmm4,%xmm4
vpshufb %xmm13,%xmm15,%xmm15
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 112-64(%rsi),%xmm6
vpxor %xmm2,%xmm5,%xmm5
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpclmulqdq $0x00,%xmm7,%xmm9,%xmm2
vpxor %xmm15,%xmm8,%xmm8
vmovdqu 16(%rdx),%xmm14
vpxor %xmm3,%xmm0,%xmm0
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm3
vpxor %xmm4,%xmm1,%xmm1
vpshufb %xmm13,%xmm14,%xmm14
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm4
vmovdqu 144-64(%rsi),%xmm6
vpxor %xmm5,%xmm2,%xmm2
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpclmulqdq $0x10,%xmm7,%xmm8,%xmm5
vmovdqu 176-64(%rsi),%xmm7
vpxor %xmm14,%xmm9,%xmm9
vmovdqu (%rdx),%xmm15
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpxor %xmm1,%xmm4,%xmm4
vpshufb %xmm13,%xmm15,%xmm15
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 160-64(%rsi),%xmm6
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x10,%xmm7,%xmm9,%xmm2
leaq 128(%rdx),%rdx
cmpq $0x80,%rcx
jb .Ltail_avx
vpxor %xmm10,%xmm15,%xmm15
subq $0x80,%rcx
jmp .Loop8x_avx
.align 32
.Loop8x_avx:
vpunpckhqdq %xmm15,%xmm15,%xmm8
vmovdqu 112(%rdx),%xmm14
vpxor %xmm0,%xmm3,%xmm3
vpxor %xmm15,%xmm8,%xmm8
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm10
vpshufb %xmm13,%xmm14,%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm11
vmovdqu 0-64(%rsi),%xmm6
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm12
vmovdqu 32-64(%rsi),%xmm7
vpxor %xmm14,%xmm9,%xmm9
vmovdqu 96(%rdx),%xmm15
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpxor %xmm3,%xmm10,%xmm10
vpshufb %xmm13,%xmm15,%xmm15
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vxorps %xmm4,%xmm11,%xmm11
vmovdqu 16-64(%rsi),%xmm6
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpclmulqdq $0x00,%xmm7,%xmm9,%xmm2
vpxor %xmm5,%xmm12,%xmm12
vxorps %xmm15,%xmm8,%xmm8
vmovdqu 80(%rdx),%xmm14
vpxor %xmm10,%xmm12,%xmm12
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm3
vpxor %xmm11,%xmm12,%xmm12
vpslldq $8,%xmm12,%xmm9
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm4
vpsrldq $8,%xmm12,%xmm12
vpxor %xmm9,%xmm10,%xmm10
vmovdqu 48-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm14
vxorps %xmm12,%xmm11,%xmm11
vpxor %xmm1,%xmm4,%xmm4
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpclmulqdq $0x10,%xmm7,%xmm8,%xmm5
vmovdqu 80-64(%rsi),%xmm7
vpxor %xmm14,%xmm9,%xmm9
vpxor %xmm2,%xmm5,%xmm5
vmovdqu 64(%rdx),%xmm15
vpalignr $8,%xmm10,%xmm10,%xmm12
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpshufb %xmm13,%xmm15,%xmm15
vpxor %xmm3,%xmm0,%xmm0
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 64-64(%rsi),%xmm6
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm4,%xmm1,%xmm1
vpclmulqdq $0x00,%xmm7,%xmm9,%xmm2
vxorps %xmm15,%xmm8,%xmm8
vpxor %xmm5,%xmm2,%xmm2
vmovdqu 48(%rdx),%xmm14
vpclmulqdq $0x10,(%r10),%xmm10,%xmm10
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm3
vpshufb %xmm13,%xmm14,%xmm14
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm4
vmovdqu 96-64(%rsi),%xmm6
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x10,%xmm7,%xmm8,%xmm5
vmovdqu 128-64(%rsi),%xmm7
vpxor %xmm14,%xmm9,%xmm9
vpxor %xmm2,%xmm5,%xmm5
vmovdqu 32(%rdx),%xmm15
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpshufb %xmm13,%xmm15,%xmm15
vpxor %xmm3,%xmm0,%xmm0
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 112-64(%rsi),%xmm6
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm4,%xmm1,%xmm1
vpclmulqdq $0x00,%xmm7,%xmm9,%xmm2
vpxor %xmm15,%xmm8,%xmm8
vpxor %xmm5,%xmm2,%xmm2
vxorps %xmm12,%xmm10,%xmm10
vmovdqu 16(%rdx),%xmm14
vpalignr $8,%xmm10,%xmm10,%xmm12
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm3
vpshufb %xmm13,%xmm14,%xmm14
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm4
vmovdqu 144-64(%rsi),%xmm6
vpclmulqdq $0x10,(%r10),%xmm10,%xmm10
vxorps %xmm11,%xmm12,%xmm12
vpunpckhqdq %xmm14,%xmm14,%xmm9
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x10,%xmm7,%xmm8,%xmm5
vmovdqu 176-64(%rsi),%xmm7
vpxor %xmm14,%xmm9,%xmm9
vpxor %xmm2,%xmm5,%xmm5
vmovdqu (%rdx),%xmm15
vpclmulqdq $0x00,%xmm6,%xmm14,%xmm0
vpshufb %xmm13,%xmm15,%xmm15
vpclmulqdq $0x11,%xmm6,%xmm14,%xmm1
vmovdqu 160-64(%rsi),%xmm6
vpxor %xmm12,%xmm15,%xmm15
vpclmulqdq $0x10,%xmm7,%xmm9,%xmm2
vpxor %xmm10,%xmm15,%xmm15
leaq 128(%rdx),%rdx
subq $0x80,%rcx
jnc .Loop8x_avx
addq $0x80,%rcx
jmp .Ltail_no_xor_avx
.align 32
.Lshort_avx:
vmovdqu -16(%rdx,%rcx,1),%xmm14
leaq (%rdx,%rcx,1),%rdx
vmovdqu 0-64(%rsi),%xmm6
vmovdqu 32-64(%rsi),%xmm7
vpshufb %xmm13,%xmm14,%xmm15
vmovdqa %xmm0,%xmm3
vmovdqa %xmm1,%xmm4
vmovdqa %xmm2,%xmm5
subq $0x10,%rcx
jz .Ltail_avx
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vmovdqu -32(%rdx),%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vmovdqu 16-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm15
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vpsrldq $8,%xmm7,%xmm7
subq $0x10,%rcx
jz .Ltail_avx
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vmovdqu -48(%rdx),%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vmovdqu 48-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm15
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vmovdqu 80-64(%rsi),%xmm7
subq $0x10,%rcx
jz .Ltail_avx
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vmovdqu -64(%rdx),%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vmovdqu 64-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm15
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vpsrldq $8,%xmm7,%xmm7
subq $0x10,%rcx
jz .Ltail_avx
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vmovdqu -80(%rdx),%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vmovdqu 96-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm15
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vmovdqu 128-64(%rsi),%xmm7
subq $0x10,%rcx
jz .Ltail_avx
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vmovdqu -96(%rdx),%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vmovdqu 112-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm15
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vpsrldq $8,%xmm7,%xmm7
subq $0x10,%rcx
jz .Ltail_avx
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vmovdqu -112(%rdx),%xmm14
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vmovdqu 144-64(%rsi),%xmm6
vpshufb %xmm13,%xmm14,%xmm15
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vmovq 184-64(%rsi),%xmm7
subq $0x10,%rcx
jmp .Ltail_avx
.align 32
.Ltail_avx:
vpxor %xmm10,%xmm15,%xmm15
.Ltail_no_xor_avx:
vpunpckhqdq %xmm15,%xmm15,%xmm8
vpxor %xmm0,%xmm3,%xmm3
vpclmulqdq $0x00,%xmm6,%xmm15,%xmm0
vpxor %xmm15,%xmm8,%xmm8
vpxor %xmm1,%xmm4,%xmm4
vpclmulqdq $0x11,%xmm6,%xmm15,%xmm1
vpxor %xmm2,%xmm5,%xmm5
vpclmulqdq $0x00,%xmm7,%xmm8,%xmm2
vmovdqu (%r10),%xmm12
vpxor %xmm0,%xmm3,%xmm10
vpxor %xmm1,%xmm4,%xmm11
vpxor %xmm2,%xmm5,%xmm5
vpxor %xmm10,%xmm5,%xmm5
vpxor %xmm11,%xmm5,%xmm5
vpslldq $8,%xmm5,%xmm9
vpsrldq $8,%xmm5,%xmm5
vpxor %xmm9,%xmm10,%xmm10
vpxor %xmm5,%xmm11,%xmm11
vpclmulqdq $0x10,%xmm12,%xmm10,%xmm9
vpalignr $8,%xmm10,%xmm10,%xmm10
vpxor %xmm9,%xmm10,%xmm10
vpclmulqdq $0x10,%xmm12,%xmm10,%xmm9
vpalignr $8,%xmm10,%xmm10,%xmm10
vpxor %xmm11,%xmm10,%xmm10
vpxor %xmm9,%xmm10,%xmm10
cmpq $0,%rcx
jne .Lshort_avx
vpshufb %xmm13,%xmm10,%xmm10
vmovdqu %xmm10,(%rdi)
vzeroupper
.byte 0xf3,0xc3
.cfi_endproc
.size gcm_ghash_avx,.-gcm_ghash_avx
.align 64
.Lbswap_mask:
.byte 15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0
.L0x1c2_polynomial:
.byte 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0xc2
.L7_mask:
.long 7,0,7,0
.L7_mask_poly:
.long 7,0,450,0
.align 64
.type .Lrem_4bit,@object
.Lrem_4bit:
.long 0,0,0,471859200,0,943718400,0,610271232
.long 0,1887436800,0,1822425088,0,1220542464,0,1423966208
.long 0,3774873600,0,4246732800,0,3644850176,0,3311403008
.long 0,2441084928,0,2376073216,0,2847932416,0,3051356160
.type .Lrem_8bit,@object
.Lrem_8bit:
.value 0x0000,0x01C2,0x0384,0x0246,0x0708,0x06CA,0x048C,0x054E
.value 0x0E10,0x0FD2,0x0D94,0x0C56,0x0918,0x08DA,0x0A9C,0x0B5E
.value 0x1C20,0x1DE2,0x1FA4,0x1E66,0x1B28,0x1AEA,0x18AC,0x196E
.value 0x1230,0x13F2,0x11B4,0x1076,0x1538,0x14FA,0x16BC,0x177E
.value 0x3840,0x3982,0x3BC4,0x3A06,0x3F48,0x3E8A,0x3CCC,0x3D0E
.value 0x3650,0x3792,0x35D4,0x3416,0x3158,0x309A,0x32DC,0x331E
.value 0x2460,0x25A2,0x27E4,0x2626,0x2368,0x22AA,0x20EC,0x212E
.value 0x2A70,0x2BB2,0x29F4,0x2836,0x2D78,0x2CBA,0x2EFC,0x2F3E
.value 0x7080,0x7142,0x7304,0x72C6,0x7788,0x764A,0x740C,0x75CE
.value 0x7E90,0x7F52,0x7D14,0x7CD6,0x7998,0x785A,0x7A1C,0x7BDE
.value 0x6CA0,0x6D62,0x6F24,0x6EE6,0x6BA8,0x6A6A,0x682C,0x69EE
.value 0x62B0,0x6372,0x6134,0x60F6,0x65B8,0x647A,0x663C,0x67FE
.value 0x48C0,0x4902,0x4B44,0x4A86,0x4FC8,0x4E0A,0x4C4C,0x4D8E
.value 0x46D0,0x4712,0x4554,0x4496,0x41D8,0x401A,0x425C,0x439E
.value 0x54E0,0x5522,0x5764,0x56A6,0x53E8,0x522A,0x506C,0x51AE
.value 0x5AF0,0x5B32,0x5974,0x58B6,0x5DF8,0x5C3A,0x5E7C,0x5FBE
.value 0xE100,0xE0C2,0xE284,0xE346,0xE608,0xE7CA,0xE58C,0xE44E
.value 0xEF10,0xEED2,0xEC94,0xED56,0xE818,0xE9DA,0xEB9C,0xEA5E
.value 0xFD20,0xFCE2,0xFEA4,0xFF66,0xFA28,0xFBEA,0xF9AC,0xF86E
.value 0xF330,0xF2F2,0xF0B4,0xF176,0xF438,0xF5FA,0xF7BC,0xF67E
.value 0xD940,0xD882,0xDAC4,0xDB06,0xDE48,0xDF8A,0xDDCC,0xDC0E
.value 0xD750,0xD692,0xD4D4,0xD516,0xD058,0xD19A,0xD3DC,0xD21E
.value 0xC560,0xC4A2,0xC6E4,0xC726,0xC268,0xC3AA,0xC1EC,0xC02E
.value 0xCB70,0xCAB2,0xC8F4,0xC936,0xCC78,0xCDBA,0xCFFC,0xCE3E
.value 0x9180,0x9042,0x9204,0x93C6,0x9688,0x974A,0x950C,0x94CE
.value 0x9F90,0x9E52,0x9C14,0x9DD6,0x9898,0x995A,0x9B1C,0x9ADE
.value 0x8DA0,0x8C62,0x8E24,0x8FE6,0x8AA8,0x8B6A,0x892C,0x88EE
.value 0x83B0,0x8272,0x8034,0x81F6,0x84B8,0x857A,0x873C,0x86FE
.value 0xA9C0,0xA802,0xAA44,0xAB86,0xAEC8,0xAF0A,0xAD4C,0xAC8E
.value 0xA7D0,0xA612,0xA454,0xA596,0xA0D8,0xA11A,0xA35C,0xA29E
.value 0xB5E0,0xB422,0xB664,0xB7A6,0xB2E8,0xB32A,0xB16C,0xB0AE
.value 0xBBF0,0xBA32,0xB874,0xB9B6,0xBCF8,0xBD3A,0xBF7C,0xBEBE
.byte 71,72,65,83,72,32,102,111,114,32,120,56,54,95,54,52,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121,32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46,111,114,103,62,0
.align 64
/* Mark the stack non-executable. */
#if defined(__linux__) && defined(__ELF__)
.section .note.GNU-stack,"",%progbits
#endif
#endif /* defined(__x86_64__) && defined(HAVE_AVX) && defined(HAVE_AES) ... */
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