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openGauss-third_party/dependency/openssl/Fix-reported-performance-degradation-on-aarch64.patch
2023-12-26 10:47:01 +08:00

147 lines
3.4 KiB
Diff

From a8f6d73fda64d514171e99a50d1483c0c0b8d968 Mon Sep 17 00:00:00 2001
From: Bernd Edlinger <bernd.edlinger@hotmail.de>
Date: Sun, 12 Jun 2022 09:37:26 +0200
Subject: [PATCH] Fix reported performance degradation on aarch64
This restores the implementation prior to
commit 2621751 ("aes/asm/aesv8-armx.pl: avoid 32-bit lane assignment in CTR mode")
for 64bit targets only, since it is reportedly 2-17% slower,
and the silicon errata only affects 32bit targets.
Only for 32bit targets the new algorithm is used.
Fixes #18445
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/18539)
---
crypto/aes/asm/aesv8-armx.pl | 62 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/crypto/aes/asm/aesv8-armx.pl b/crypto/aes/asm/aesv8-armx.pl
index 2b0e982..1856d99 100755
--- a/crypto/aes/asm/aesv8-armx.pl
+++ b/crypto/aes/asm/aesv8-armx.pl
@@ -740,6 +740,21 @@ $code.=<<___;
#ifndef __ARMEB__
rev $ctr, $ctr
#endif
+___
+$code.=<<___ if ($flavour =~ /64/);
+ vorr $dat1,$dat0,$dat0
+ add $tctr1, $ctr, #1
+ vorr $dat2,$dat0,$dat0
+ add $ctr, $ctr, #2
+ vorr $ivec,$dat0,$dat0
+ rev $tctr1, $tctr1
+ vmov.32 ${dat1}[3],$tctr1
+ b.ls .Lctr32_tail
+ rev $tctr2, $ctr
+ sub $len,$len,#3 // bias
+ vmov.32 ${dat2}[3],$tctr2
+___
+$code.=<<___ if ($flavour !~ /64/);
add $tctr1, $ctr, #1
vorr $ivec,$dat0,$dat0
rev $tctr1, $tctr1
@@ -751,6 +766,8 @@ $code.=<<___;
vmov.32 ${ivec}[3],$tctr2
sub $len,$len,#3 // bias
vorr $dat2,$ivec,$ivec
+___
+$code.=<<___;
b .Loop3x_ctr32
.align 4
@@ -777,11 +794,25 @@ $code.=<<___;
aese $dat1,q8
aesmc $tmp1,$dat1
vld1.8 {$in0},[$inp],#16
+___
+$code.=<<___ if ($flavour =~ /64/);
+ vorr $dat0,$ivec,$ivec
+___
+$code.=<<___ if ($flavour !~ /64/);
add $tctr0,$ctr,#1
+___
+$code.=<<___;
aese $dat2,q8
aesmc $dat2,$dat2
vld1.8 {$in1},[$inp],#16
+___
+$code.=<<___ if ($flavour =~ /64/);
+ vorr $dat1,$ivec,$ivec
+___
+$code.=<<___ if ($flavour !~ /64/);
rev $tctr0,$tctr0
+___
+$code.=<<___;
aese $tmp0,q9
aesmc $tmp0,$tmp0
aese $tmp1,q9
@@ -790,6 +821,12 @@ $code.=<<___;
mov $key_,$key
aese $dat2,q9
aesmc $tmp2,$dat2
+___
+$code.=<<___ if ($flavour =~ /64/);
+ vorr $dat2,$ivec,$ivec
+ add $tctr0,$ctr,#1
+___
+$code.=<<___;
aese $tmp0,q12
aesmc $tmp0,$tmp0
aese $tmp1,q12
@@ -805,22 +842,47 @@ $code.=<<___;
aese $tmp1,q13
aesmc $tmp1,$tmp1
veor $in2,$in2,$rndlast
+___
+$code.=<<___ if ($flavour =~ /64/);
+ rev $tctr0,$tctr0
+ aese $tmp2,q13
+ aesmc $tmp2,$tmp2
+ vmov.32 ${dat0}[3], $tctr0
+___
+$code.=<<___ if ($flavour !~ /64/);
vmov.32 ${ivec}[3], $tctr0
aese $tmp2,q13
aesmc $tmp2,$tmp2
vorr $dat0,$ivec,$ivec
+___
+$code.=<<___;
rev $tctr1,$tctr1
aese $tmp0,q14
aesmc $tmp0,$tmp0
+___
+$code.=<<___ if ($flavour !~ /64/);
vmov.32 ${ivec}[3], $tctr1
rev $tctr2,$ctr
+___
+$code.=<<___;
aese $tmp1,q14
aesmc $tmp1,$tmp1
+___
+$code.=<<___ if ($flavour =~ /64/);
+ vmov.32 ${dat1}[3], $tctr1
+ rev $tctr2,$ctr
+ aese $tmp2,q14
+ aesmc $tmp2,$tmp2
+ vmov.32 ${dat2}[3], $tctr2
+___
+$code.=<<___ if ($flavour !~ /64/);
vorr $dat1,$ivec,$ivec
vmov.32 ${ivec}[3], $tctr2
aese $tmp2,q14
aesmc $tmp2,$tmp2
vorr $dat2,$ivec,$ivec
+___
+$code.=<<___;
subs $len,$len,#3
aese $tmp0,q15
aese $tmp1,q15
--
1.8.3.1