[v2 PATCH 4/4] zinc: ChaCha20 x86_64 implementation

From: Herbert Xu
Date: Tue Nov 20 2018 - 01:05:02 EST

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From: Jason A. Donenfeld <Jason@xxxxxxxxx>

This ports SSSE3, AVX-2, AVX-512F, and AVX-512VL implementations for
ChaCha20. The AVX-512F implementation is disabled on Skylake, due to
throttling, and the VL ymm implementation is used instead. These come
from Andy Polyakov's implementation, with the following modifications
from Samuel Neves:

- Some cosmetic changes, like renaming labels to .Lname, constants,
and other Linux conventions.

- CPU feature checking is done in C by the glue code, so that has been
removed from the assembly.

- Eliminate translating certain instructions, such as pshufb, palignr,
vprotd, etc, to .byte directives. This is meant for compatibility
with ancient toolchains, but presumably it is unnecessary here,
since the build system already does checks on what GNU as can
assemble.

- When aligning the stack, the original code was saving %rsp to %r9.
To keep objtool happy, we use instead the DRAP idiom to save %rsp
to %r10:

leaq 8(%rsp),%r10
... code here ...
leaq -8(%r10),%rsp

- The original code assumes the stack comes aligned to 16 bytes. This
is not necessarily the case, and to avoid crashes,
`andq $-alignment, %rsp` was added in the prolog of a few functions.

- The original hardcodes returns as .byte 0xf3,0xc3, aka "rep ret".
We replace this by "ret". "rep ret" was meant to help with AMD K8
chips, cf. http://repzret.org/p/repzret. It makes no sense to
continue to use this kludge for code that won't even run on ancient
AMD chips.

Cycle counts on a Core i7 6700HQ using the AVX-2 codepath, comparing
this implementation ("new") to the implementation in the current crypto
api ("old"):

size old new
---- ---- ----
0 62 52
16 414 376
32 410 400
48 414 422
64 362 356
80 714 666
96 714 700
112 712 718
128 692 646
144 1042 674
160 1042 694
176 1042 726
192 1018 650
208 1366 686
224 1366 696
240 1366 722
256 640 656
272 988 1246
288 988 1276
304 992 1296
320 972 1222
336 1318 1256
352 1318 1276
368 1316 1294
384 1294 1218
400 1642 1258
416 1642 1282
432 1642 1302
448 1628 1224
464 1970 1258
480 1970 1280
496 1970 1300
512 656 676
528 1010 1290
544 1010 1306
560 1010 1332
576 986 1254
592 1340 1284
608 1334 1310
624 1340 1334
640 1314 1254
656 1664 1282
672 1674 1306
688 1662 1336
704 1638 1250
720 1992 1292
736 1994 1308
752 1988 1334
768 1252 1254
784 1596 1290
800 1596 1314
816 1596 1330
832 1576 1256
848 1922 1286
864 1922 1314
880 1926 1338
896 1898 1258
912 2248 1288
928 2248 1320
944 2248 1338
960 2226 1268
976 2574 1288
992 2576 1312
1008 2574 1340

Cycle counts on a Xeon Gold 5120 using the AVX-512 codepath:

size old new
---- ---- ----
0 64 54
16 386 372
32 388 396
48 388 420
64 366 350
80 708 666
96 708 692
112 706 736
128 692 648
144 1036 682
160 1036 708
176 1036 730
192 1016 658
208 1360 684
224 1362 708
240 1360 732
256 644 500
272 990 526
288 988 556
304 988 576
320 972 500
336 1314 532
352 1316 558
368 1318 578
384 1308 506
400 1644 532
416 1644 556
432 1644 594
448 1624 508
464 1970 534
480 1970 556
496 1968 582
512 660 624
528 1016 682
544 1016 702
560 1018 728
576 998 654
592 1344 680
608 1344 708
624 1344 730
640 1326 654
656 1670 686
672 1670 708
688 1670 732
704 1652 658
720 1998 682
736 1998 710
752 1996 734
768 1256 662
784 1606 688
800 1606 714
816 1606 736
832 1584 660
848 1948 688
864 1950 714
880 1948 736
896 1912 688
912 2258 718
928 2258 744
944 2256 768
960 2238 692
976 2584 718
992 2584 744
1008 2584 770

Signed-off-by: Jason A. Donenfeld <Jason@xxxxxxxxx>
Signed-off-by: Samuel Neves <sneves@xxxxxxxxx>
Co-developed-by: Samuel Neves <sneves@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: x86@xxxxxxxxxx
Cc: Jean-Philippe Aumasson <jeanphilippe.aumasson@xxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: kernel-hardening@xxxxxxxxxxxxxxxxxx
Cc: linux-crypto@xxxxxxxxxxxxxxx
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
---

arch/x86/crypto/Makefile | 3
arch/x86/crypto/chacha20-avx2-x86_64.S | 1026 ------------
arch/x86/crypto/chacha20-ssse3-x86_64.S | 761 --------
arch/x86/crypto/chacha20-zinc-x86_64.S | 2632 +++++++++++++++++++++++++++++++
arch/x86/crypto/chacha20_glue.c | 119 -
include/crypto/chacha20.h | 4
lib/zinc/chacha20/chacha20-x86_64-glue.c | 3
7 files changed, 2692 insertions(+), 1856 deletions(-)

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index a4b0007a54e1..e054aff91005 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -74,7 +74,7 @@ camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o
blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o
twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o
-chacha20-x86_64-y := chacha20-ssse3-x86_64.o chacha20_glue.o
+chacha20-x86_64-y := chacha20-zinc-x86_64.o chacha20_glue.o
serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o

aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o
@@ -97,7 +97,6 @@ endif

ifeq ($(avx2_supported),yes)
camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o
- chacha20-x86_64-y += chacha20-avx2-x86_64.o
serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o

morus1280-avx2-y := morus1280-avx2-asm.o morus1280-avx2-glue.o
diff --git a/arch/x86/crypto/chacha20-avx2-x86_64.S b/arch/x86/crypto/chacha20-avx2-x86_64.S
deleted file mode 100644
index b6ab082be657..000000000000
--- a/arch/x86/crypto/chacha20-avx2-x86_64.S
+++ /dev/null
@@ -1,1026 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, x64 AVX2 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * 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.
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst32.ROT8, "aM", @progbits, 32
-.align 32
-ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
- .octa 0x0e0d0c0f0a09080b0605040702010003
-
-.section .rodata.cst32.ROT16, "aM", @progbits, 32
-.align 32
-ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
- .octa 0x0d0c0f0e09080b0a0504070601000302
-
-.section .rodata.cst32.CTRINC, "aM", @progbits, 32
-.align 32
-CTRINC: .octa 0x00000003000000020000000100000000
- .octa 0x00000007000000060000000500000004
-
-.section .rodata.cst32.CTR2BL, "aM", @progbits, 32
-.align 32
-CTR2BL: .octa 0x00000000000000000000000000000000
- .octa 0x00000000000000000000000000000001
-
-.section .rodata.cst32.CTR4BL, "aM", @progbits, 32
-.align 32
-CTR4BL: .octa 0x00000000000000000000000000000002
- .octa 0x00000000000000000000000000000003
-
-.text
-
-ENTRY(chacha20_2block_xor_avx2)
- # %rdi: Input state matrix, s
- # %rsi: up to 2 data blocks output, o
- # %rdx: up to 2 data blocks input, i
- # %rcx: input/output length in bytes
-
- # This function encrypts two ChaCha20 blocks by loading the state
- # matrix twice across four AVX registers. It performs matrix operations
- # on four words in each matrix in parallel, but requires shuffling to
- # rearrange the words after each round.
-
- vzeroupper
-
- # x0..3[0-2] = s0..3
- vbroadcasti128 0x00(%rdi),%ymm0
- vbroadcasti128 0x10(%rdi),%ymm1
- vbroadcasti128 0x20(%rdi),%ymm2
- vbroadcasti128 0x30(%rdi),%ymm3
-
- vpaddd CTR2BL(%rip),%ymm3,%ymm3
-
- vmovdqa %ymm0,%ymm8
- vmovdqa %ymm1,%ymm9
- vmovdqa %ymm2,%ymm10
- vmovdqa %ymm3,%ymm11
-
- vmovdqa ROT8(%rip),%ymm4
- vmovdqa ROT16(%rip),%ymm5
-
- mov %rcx,%rax
- mov $10,%ecx
-
-.Ldoubleround:
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm5,%ymm3,%ymm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm6
- vpslld $12,%ymm6,%ymm6
- vpsrld $20,%ymm1,%ymm1
- vpor %ymm6,%ymm1,%ymm1
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm4,%ymm3,%ymm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm7
- vpslld $7,%ymm7,%ymm7
- vpsrld $25,%ymm1,%ymm1
- vpor %ymm7,%ymm1,%ymm1
-
- # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
- vpshufd $0x39,%ymm1,%ymm1
- # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- vpshufd $0x4e,%ymm2,%ymm2
- # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
- vpshufd $0x93,%ymm3,%ymm3
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm5,%ymm3,%ymm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm6
- vpslld $12,%ymm6,%ymm6
- vpsrld $20,%ymm1,%ymm1
- vpor %ymm6,%ymm1,%ymm1
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm4,%ymm3,%ymm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm7
- vpslld $7,%ymm7,%ymm7
- vpsrld $25,%ymm1,%ymm1
- vpor %ymm7,%ymm1,%ymm1
-
- # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
- vpshufd $0x93,%ymm1,%ymm1
- # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- vpshufd $0x4e,%ymm2,%ymm2
- # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
- vpshufd $0x39,%ymm3,%ymm3
-
- dec %ecx
- jnz .Ldoubleround
-
- # o0 = i0 ^ (x0 + s0)
- vpaddd %ymm8,%ymm0,%ymm7
- cmp $0x10,%rax
- jl .Lxorpart2
- vpxor 0x00(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x00(%rsi)
- vextracti128 $1,%ymm7,%xmm0
- # o1 = i1 ^ (x1 + s1)
- vpaddd %ymm9,%ymm1,%ymm7
- cmp $0x20,%rax
- jl .Lxorpart2
- vpxor 0x10(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x10(%rsi)
- vextracti128 $1,%ymm7,%xmm1
- # o2 = i2 ^ (x2 + s2)
- vpaddd %ymm10,%ymm2,%ymm7
- cmp $0x30,%rax
- jl .Lxorpart2
- vpxor 0x20(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x20(%rsi)
- vextracti128 $1,%ymm7,%xmm2
- # o3 = i3 ^ (x3 + s3)
- vpaddd %ymm11,%ymm3,%ymm7
- cmp $0x40,%rax
- jl .Lxorpart2
- vpxor 0x30(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x30(%rsi)
- vextracti128 $1,%ymm7,%xmm3
-
- # xor and write second block
- vmovdqa %xmm0,%xmm7
- cmp $0x50,%rax
- jl .Lxorpart2
- vpxor 0x40(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x40(%rsi)
-
- vmovdqa %xmm1,%xmm7
- cmp $0x60,%rax
- jl .Lxorpart2
- vpxor 0x50(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x50(%rsi)
-
- vmovdqa %xmm2,%xmm7
- cmp $0x70,%rax
- jl .Lxorpart2
- vpxor 0x60(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x60(%rsi)
-
- vmovdqa %xmm3,%xmm7
- cmp $0x80,%rax
- jl .Lxorpart2
- vpxor 0x70(%rdx),%xmm7,%xmm6
- vmovdqu %xmm6,0x70(%rsi)
-
-.Ldone2:
- vzeroupper
- ret
-
-.Lxorpart2:
- # xor remaining bytes from partial register into output
- mov %rax,%r9
- and $0x0f,%r9
- jz .Ldone2
- and $~0x0f,%rax
-
- mov %rsi,%r11
-
- lea 8(%rsp),%r10
- sub $0x10,%rsp
- and $~31,%rsp
-
- lea (%rdx,%rax),%rsi
- mov %rsp,%rdi
- mov %r9,%rcx
- rep movsb
-
- vpxor 0x00(%rsp),%xmm7,%xmm7
- vmovdqa %xmm7,0x00(%rsp)
-
- mov %rsp,%rsi
- lea (%r11,%rax),%rdi
- mov %r9,%rcx
- rep movsb
-
- lea -8(%r10),%rsp
- jmp .Ldone2
-
-ENDPROC(chacha20_2block_xor_avx2)
-
-ENTRY(chacha20_4block_xor_avx2)
- # %rdi: Input state matrix, s
- # %rsi: up to 4 data blocks output, o
- # %rdx: up to 4 data blocks input, i
- # %rcx: input/output length in bytes
-
- # This function encrypts four ChaCha20 block by loading the state
- # matrix four times across eight AVX registers. It performs matrix
- # operations on four words in two matrices in parallel, sequentially
- # to the operations on the four words of the other two matrices. The
- # required word shuffling has a rather high latency, we can do the
- # arithmetic on two matrix-pairs without much slowdown.
-
- vzeroupper
-
- # x0..3[0-4] = s0..3
- vbroadcasti128 0x00(%rdi),%ymm0
- vbroadcasti128 0x10(%rdi),%ymm1
- vbroadcasti128 0x20(%rdi),%ymm2
- vbroadcasti128 0x30(%rdi),%ymm3
-
- vmovdqa %ymm0,%ymm4
- vmovdqa %ymm1,%ymm5
- vmovdqa %ymm2,%ymm6
- vmovdqa %ymm3,%ymm7
-
- vpaddd CTR2BL(%rip),%ymm3,%ymm3
- vpaddd CTR4BL(%rip),%ymm7,%ymm7
-
- vmovdqa %ymm0,%ymm11
- vmovdqa %ymm1,%ymm12
- vmovdqa %ymm2,%ymm13
- vmovdqa %ymm3,%ymm14
- vmovdqa %ymm7,%ymm15
-
- vmovdqa ROT8(%rip),%ymm8
- vmovdqa ROT16(%rip),%ymm9
-
- mov %rcx,%rax
- mov $10,%ecx
-
-.Ldoubleround4:
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm9,%ymm3,%ymm3
-
- vpaddd %ymm5,%ymm4,%ymm4
- vpxor %ymm4,%ymm7,%ymm7
- vpshufb %ymm9,%ymm7,%ymm7
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm10
- vpslld $12,%ymm10,%ymm10
- vpsrld $20,%ymm1,%ymm1
- vpor %ymm10,%ymm1,%ymm1
-
- vpaddd %ymm7,%ymm6,%ymm6
- vpxor %ymm6,%ymm5,%ymm5
- vmovdqa %ymm5,%ymm10
- vpslld $12,%ymm10,%ymm10
- vpsrld $20,%ymm5,%ymm5
- vpor %ymm10,%ymm5,%ymm5
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm8,%ymm3,%ymm3
-
- vpaddd %ymm5,%ymm4,%ymm4
- vpxor %ymm4,%ymm7,%ymm7
- vpshufb %ymm8,%ymm7,%ymm7
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm10
- vpslld $7,%ymm10,%ymm10
- vpsrld $25,%ymm1,%ymm1
- vpor %ymm10,%ymm1,%ymm1
-
- vpaddd %ymm7,%ymm6,%ymm6
- vpxor %ymm6,%ymm5,%ymm5
- vmovdqa %ymm5,%ymm10
- vpslld $7,%ymm10,%ymm10
- vpsrld $25,%ymm5,%ymm5
- vpor %ymm10,%ymm5,%ymm5
-
- # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
- vpshufd $0x39,%ymm1,%ymm1
- vpshufd $0x39,%ymm5,%ymm5
- # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- vpshufd $0x4e,%ymm2,%ymm2
- vpshufd $0x4e,%ymm6,%ymm6
- # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
- vpshufd $0x93,%ymm3,%ymm3
- vpshufd $0x93,%ymm7,%ymm7
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm9,%ymm3,%ymm3
-
- vpaddd %ymm5,%ymm4,%ymm4
- vpxor %ymm4,%ymm7,%ymm7
- vpshufb %ymm9,%ymm7,%ymm7
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm10
- vpslld $12,%ymm10,%ymm10
- vpsrld $20,%ymm1,%ymm1
- vpor %ymm10,%ymm1,%ymm1
-
- vpaddd %ymm7,%ymm6,%ymm6
- vpxor %ymm6,%ymm5,%ymm5
- vmovdqa %ymm5,%ymm10
- vpslld $12,%ymm10,%ymm10
- vpsrld $20,%ymm5,%ymm5
- vpor %ymm10,%ymm5,%ymm5
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- vpaddd %ymm1,%ymm0,%ymm0
- vpxor %ymm0,%ymm3,%ymm3
- vpshufb %ymm8,%ymm3,%ymm3
-
- vpaddd %ymm5,%ymm4,%ymm4
- vpxor %ymm4,%ymm7,%ymm7
- vpshufb %ymm8,%ymm7,%ymm7
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- vpaddd %ymm3,%ymm2,%ymm2
- vpxor %ymm2,%ymm1,%ymm1
- vmovdqa %ymm1,%ymm10
- vpslld $7,%ymm10,%ymm10
- vpsrld $25,%ymm1,%ymm1
- vpor %ymm10,%ymm1,%ymm1
-
- vpaddd %ymm7,%ymm6,%ymm6
- vpxor %ymm6,%ymm5,%ymm5
- vmovdqa %ymm5,%ymm10
- vpslld $7,%ymm10,%ymm10
- vpsrld $25,%ymm5,%ymm5
- vpor %ymm10,%ymm5,%ymm5
-
- # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
- vpshufd $0x93,%ymm1,%ymm1
- vpshufd $0x93,%ymm5,%ymm5
- # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- vpshufd $0x4e,%ymm2,%ymm2
- vpshufd $0x4e,%ymm6,%ymm6
- # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
- vpshufd $0x39,%ymm3,%ymm3
- vpshufd $0x39,%ymm7,%ymm7
-
- dec %ecx
- jnz .Ldoubleround4
-
- # o0 = i0 ^ (x0 + s0), first block
- vpaddd %ymm11,%ymm0,%ymm10
- cmp $0x10,%rax
- jl .Lxorpart4
- vpxor 0x00(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x00(%rsi)
- vextracti128 $1,%ymm10,%xmm0
- # o1 = i1 ^ (x1 + s1), first block
- vpaddd %ymm12,%ymm1,%ymm10
- cmp $0x20,%rax
- jl .Lxorpart4
- vpxor 0x10(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x10(%rsi)
- vextracti128 $1,%ymm10,%xmm1
- # o2 = i2 ^ (x2 + s2), first block
- vpaddd %ymm13,%ymm2,%ymm10
- cmp $0x30,%rax
- jl .Lxorpart4
- vpxor 0x20(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x20(%rsi)
- vextracti128 $1,%ymm10,%xmm2
- # o3 = i3 ^ (x3 + s3), first block
- vpaddd %ymm14,%ymm3,%ymm10
- cmp $0x40,%rax
- jl .Lxorpart4
- vpxor 0x30(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x30(%rsi)
- vextracti128 $1,%ymm10,%xmm3
-
- # xor and write second block
- vmovdqa %xmm0,%xmm10
- cmp $0x50,%rax
- jl .Lxorpart4
- vpxor 0x40(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x40(%rsi)
-
- vmovdqa %xmm1,%xmm10
- cmp $0x60,%rax
- jl .Lxorpart4
- vpxor 0x50(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x50(%rsi)
-
- vmovdqa %xmm2,%xmm10
- cmp $0x70,%rax
- jl .Lxorpart4
- vpxor 0x60(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x60(%rsi)
-
- vmovdqa %xmm3,%xmm10
- cmp $0x80,%rax
- jl .Lxorpart4
- vpxor 0x70(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x70(%rsi)
-
- # o0 = i0 ^ (x0 + s0), third block
- vpaddd %ymm11,%ymm4,%ymm10
- cmp $0x90,%rax
- jl .Lxorpart4
- vpxor 0x80(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x80(%rsi)
- vextracti128 $1,%ymm10,%xmm4
- # o1 = i1 ^ (x1 + s1), third block
- vpaddd %ymm12,%ymm5,%ymm10
- cmp $0xa0,%rax
- jl .Lxorpart4
- vpxor 0x90(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0x90(%rsi)
- vextracti128 $1,%ymm10,%xmm5
- # o2 = i2 ^ (x2 + s2), third block
- vpaddd %ymm13,%ymm6,%ymm10
- cmp $0xb0,%rax
- jl .Lxorpart4
- vpxor 0xa0(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0xa0(%rsi)
- vextracti128 $1,%ymm10,%xmm6
- # o3 = i3 ^ (x3 + s3), third block
- vpaddd %ymm15,%ymm7,%ymm10
- cmp $0xc0,%rax
- jl .Lxorpart4
- vpxor 0xb0(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0xb0(%rsi)
- vextracti128 $1,%ymm10,%xmm7
-
- # xor and write fourth block
- vmovdqa %xmm4,%xmm10
- cmp $0xd0,%rax
- jl .Lxorpart4
- vpxor 0xc0(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0xc0(%rsi)
-
- vmovdqa %xmm5,%xmm10
- cmp $0xe0,%rax
- jl .Lxorpart4
- vpxor 0xd0(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0xd0(%rsi)
-
- vmovdqa %xmm6,%xmm10
- cmp $0xf0,%rax
- jl .Lxorpart4
- vpxor 0xe0(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0xe0(%rsi)
-
- vmovdqa %xmm7,%xmm10
- cmp $0x100,%rax
- jl .Lxorpart4
- vpxor 0xf0(%rdx),%xmm10,%xmm9
- vmovdqu %xmm9,0xf0(%rsi)
-
-.Ldone4:
- vzeroupper
- ret
-
-.Lxorpart4:
- # xor remaining bytes from partial register into output
- mov %rax,%r9
- and $0x0f,%r9
- jz .Ldone4
- and $~0x0f,%rax
-
- mov %rsi,%r11
-
- lea 8(%rsp),%r10
- sub $0x10,%rsp
- and $~31,%rsp
-
- lea (%rdx,%rax),%rsi
- mov %rsp,%rdi
- mov %r9,%rcx
- rep movsb
-
- vpxor 0x00(%rsp),%xmm10,%xmm10
- vmovdqa %xmm10,0x00(%rsp)
-
- mov %rsp,%rsi
- lea (%r11,%rax),%rdi
- mov %r9,%rcx
- rep movsb
-
- lea -8(%r10),%rsp
- jmp .Ldone4
-
-ENDPROC(chacha20_4block_xor_avx2)
-
-ENTRY(chacha20_8block_xor_avx2)
- # %rdi: Input state matrix, s
- # %rsi: up to 8 data blocks output, o
- # %rdx: up to 8 data blocks input, i
- # %rcx: input/output length in bytes
-
- # This function encrypts eight consecutive ChaCha20 blocks by loading
- # the state matrix in AVX registers eight times. As we need some
- # scratch registers, we save the first four registers on the stack. The
- # algorithm performs each operation on the corresponding word of each
- # state matrix, hence requires no word shuffling. For final XORing step
- # we transpose the matrix by interleaving 32-, 64- and then 128-bit
- # words, which allows us to do XOR in AVX registers. 8/16-bit word
- # rotation is done with the slightly better performing byte shuffling,
- # 7/12-bit word rotation uses traditional shift+OR.
-
- vzeroupper
- # 4 * 32 byte stack, 32-byte aligned
- lea 8(%rsp),%r10
- and $~31, %rsp
- sub $0x80, %rsp
- mov %rcx,%rax
-
- # x0..15[0-7] = s[0..15]
- vpbroadcastd 0x00(%rdi),%ymm0
- vpbroadcastd 0x04(%rdi),%ymm1
- vpbroadcastd 0x08(%rdi),%ymm2
- vpbroadcastd 0x0c(%rdi),%ymm3
- vpbroadcastd 0x10(%rdi),%ymm4
- vpbroadcastd 0x14(%rdi),%ymm5
- vpbroadcastd 0x18(%rdi),%ymm6
- vpbroadcastd 0x1c(%rdi),%ymm7
- vpbroadcastd 0x20(%rdi),%ymm8
- vpbroadcastd 0x24(%rdi),%ymm9
- vpbroadcastd 0x28(%rdi),%ymm10
- vpbroadcastd 0x2c(%rdi),%ymm11
- vpbroadcastd 0x30(%rdi),%ymm12
- vpbroadcastd 0x34(%rdi),%ymm13
- vpbroadcastd 0x38(%rdi),%ymm14
- vpbroadcastd 0x3c(%rdi),%ymm15
- # x0..3 on stack
- vmovdqa %ymm0,0x00(%rsp)
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa %ymm2,0x40(%rsp)
- vmovdqa %ymm3,0x60(%rsp)
-
- vmovdqa CTRINC(%rip),%ymm1
- vmovdqa ROT8(%rip),%ymm2
- vmovdqa ROT16(%rip),%ymm3
-
- # x12 += counter values 0-3
- vpaddd %ymm1,%ymm12,%ymm12
-
- mov $10,%ecx
-
-.Ldoubleround8:
- # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
- vpaddd 0x00(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm3,%ymm12,%ymm12
- # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
- vpaddd 0x20(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm3,%ymm13,%ymm13
- # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
- vpaddd 0x40(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm3,%ymm14,%ymm14
- # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
- vpaddd 0x60(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm3,%ymm15,%ymm15
-
- # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
- vpaddd %ymm12,%ymm8,%ymm8
- vpxor %ymm8,%ymm4,%ymm4
- vpslld $12,%ymm4,%ymm0
- vpsrld $20,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
- # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
- vpaddd %ymm13,%ymm9,%ymm9
- vpxor %ymm9,%ymm5,%ymm5
- vpslld $12,%ymm5,%ymm0
- vpsrld $20,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
- vpaddd %ymm14,%ymm10,%ymm10
- vpxor %ymm10,%ymm6,%ymm6
- vpslld $12,%ymm6,%ymm0
- vpsrld $20,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
- vpaddd %ymm15,%ymm11,%ymm11
- vpxor %ymm11,%ymm7,%ymm7
- vpslld $12,%ymm7,%ymm0
- vpsrld $20,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
-
- # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
- vpaddd 0x00(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm2,%ymm12,%ymm12
- # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
- vpaddd 0x20(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm2,%ymm13,%ymm13
- # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
- vpaddd 0x40(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm2,%ymm14,%ymm14
- # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
- vpaddd 0x60(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm2,%ymm15,%ymm15
-
- # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
- vpaddd %ymm12,%ymm8,%ymm8
- vpxor %ymm8,%ymm4,%ymm4
- vpslld $7,%ymm4,%ymm0
- vpsrld $25,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
- # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
- vpaddd %ymm13,%ymm9,%ymm9
- vpxor %ymm9,%ymm5,%ymm5
- vpslld $7,%ymm5,%ymm0
- vpsrld $25,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
- vpaddd %ymm14,%ymm10,%ymm10
- vpxor %ymm10,%ymm6,%ymm6
- vpslld $7,%ymm6,%ymm0
- vpsrld $25,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
- vpaddd %ymm15,%ymm11,%ymm11
- vpxor %ymm11,%ymm7,%ymm7
- vpslld $7,%ymm7,%ymm0
- vpsrld $25,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
-
- # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
- vpaddd 0x00(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm3,%ymm15,%ymm15
- # x1 += x6, x12 = rotl32(x12 ^ x1, 16)%ymm0
- vpaddd 0x20(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm3,%ymm12,%ymm12
- # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
- vpaddd 0x40(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm3,%ymm13,%ymm13
- # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
- vpaddd 0x60(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm3,%ymm14,%ymm14
-
- # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
- vpaddd %ymm15,%ymm10,%ymm10
- vpxor %ymm10,%ymm5,%ymm5
- vpslld $12,%ymm5,%ymm0
- vpsrld $20,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
- vpaddd %ymm12,%ymm11,%ymm11
- vpxor %ymm11,%ymm6,%ymm6
- vpslld $12,%ymm6,%ymm0
- vpsrld $20,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
- vpaddd %ymm13,%ymm8,%ymm8
- vpxor %ymm8,%ymm7,%ymm7
- vpslld $12,%ymm7,%ymm0
- vpsrld $20,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
- # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
- vpaddd %ymm14,%ymm9,%ymm9
- vpxor %ymm9,%ymm4,%ymm4
- vpslld $12,%ymm4,%ymm0
- vpsrld $20,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
-
- # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
- vpaddd 0x00(%rsp),%ymm5,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpxor %ymm0,%ymm15,%ymm15
- vpshufb %ymm2,%ymm15,%ymm15
- # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
- vpaddd 0x20(%rsp),%ymm6,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpxor %ymm0,%ymm12,%ymm12
- vpshufb %ymm2,%ymm12,%ymm12
- # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
- vpaddd 0x40(%rsp),%ymm7,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpxor %ymm0,%ymm13,%ymm13
- vpshufb %ymm2,%ymm13,%ymm13
- # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
- vpaddd 0x60(%rsp),%ymm4,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpxor %ymm0,%ymm14,%ymm14
- vpshufb %ymm2,%ymm14,%ymm14
-
- # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
- vpaddd %ymm15,%ymm10,%ymm10
- vpxor %ymm10,%ymm5,%ymm5
- vpslld $7,%ymm5,%ymm0
- vpsrld $25,%ymm5,%ymm5
- vpor %ymm0,%ymm5,%ymm5
- # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
- vpaddd %ymm12,%ymm11,%ymm11
- vpxor %ymm11,%ymm6,%ymm6
- vpslld $7,%ymm6,%ymm0
- vpsrld $25,%ymm6,%ymm6
- vpor %ymm0,%ymm6,%ymm6
- # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
- vpaddd %ymm13,%ymm8,%ymm8
- vpxor %ymm8,%ymm7,%ymm7
- vpslld $7,%ymm7,%ymm0
- vpsrld $25,%ymm7,%ymm7
- vpor %ymm0,%ymm7,%ymm7
- # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
- vpaddd %ymm14,%ymm9,%ymm9
- vpxor %ymm9,%ymm4,%ymm4
- vpslld $7,%ymm4,%ymm0
- vpsrld $25,%ymm4,%ymm4
- vpor %ymm0,%ymm4,%ymm4
-
- dec %ecx
- jnz .Ldoubleround8
-
- # x0..15[0-3] += s[0..15]
- vpbroadcastd 0x00(%rdi),%ymm0
- vpaddd 0x00(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
- vpbroadcastd 0x04(%rdi),%ymm0
- vpaddd 0x20(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x20(%rsp)
- vpbroadcastd 0x08(%rdi),%ymm0
- vpaddd 0x40(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x40(%rsp)
- vpbroadcastd 0x0c(%rdi),%ymm0
- vpaddd 0x60(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x60(%rsp)
- vpbroadcastd 0x10(%rdi),%ymm0
- vpaddd %ymm0,%ymm4,%ymm4
- vpbroadcastd 0x14(%rdi),%ymm0
- vpaddd %ymm0,%ymm5,%ymm5
- vpbroadcastd 0x18(%rdi),%ymm0
- vpaddd %ymm0,%ymm6,%ymm6
- vpbroadcastd 0x1c(%rdi),%ymm0
- vpaddd %ymm0,%ymm7,%ymm7
- vpbroadcastd 0x20(%rdi),%ymm0
- vpaddd %ymm0,%ymm8,%ymm8
- vpbroadcastd 0x24(%rdi),%ymm0
- vpaddd %ymm0,%ymm9,%ymm9
- vpbroadcastd 0x28(%rdi),%ymm0
- vpaddd %ymm0,%ymm10,%ymm10
- vpbroadcastd 0x2c(%rdi),%ymm0
- vpaddd %ymm0,%ymm11,%ymm11
- vpbroadcastd 0x30(%rdi),%ymm0
- vpaddd %ymm0,%ymm12,%ymm12
- vpbroadcastd 0x34(%rdi),%ymm0
- vpaddd %ymm0,%ymm13,%ymm13
- vpbroadcastd 0x38(%rdi),%ymm0
- vpaddd %ymm0,%ymm14,%ymm14
- vpbroadcastd 0x3c(%rdi),%ymm0
- vpaddd %ymm0,%ymm15,%ymm15
-
- # x12 += counter values 0-3
- vpaddd %ymm1,%ymm12,%ymm12
-
- # interleave 32-bit words in state n, n+1
- vmovdqa 0x00(%rsp),%ymm0
- vmovdqa 0x20(%rsp),%ymm1
- vpunpckldq %ymm1,%ymm0,%ymm2
- vpunpckhdq %ymm1,%ymm0,%ymm1
- vmovdqa %ymm2,0x00(%rsp)
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa 0x40(%rsp),%ymm0
- vmovdqa 0x60(%rsp),%ymm1
- vpunpckldq %ymm1,%ymm0,%ymm2
- vpunpckhdq %ymm1,%ymm0,%ymm1
- vmovdqa %ymm2,0x40(%rsp)
- vmovdqa %ymm1,0x60(%rsp)
- vmovdqa %ymm4,%ymm0
- vpunpckldq %ymm5,%ymm0,%ymm4
- vpunpckhdq %ymm5,%ymm0,%ymm5
- vmovdqa %ymm6,%ymm0
- vpunpckldq %ymm7,%ymm0,%ymm6
- vpunpckhdq %ymm7,%ymm0,%ymm7
- vmovdqa %ymm8,%ymm0
- vpunpckldq %ymm9,%ymm0,%ymm8
- vpunpckhdq %ymm9,%ymm0,%ymm9
- vmovdqa %ymm10,%ymm0
- vpunpckldq %ymm11,%ymm0,%ymm10
- vpunpckhdq %ymm11,%ymm0,%ymm11
- vmovdqa %ymm12,%ymm0
- vpunpckldq %ymm13,%ymm0,%ymm12
- vpunpckhdq %ymm13,%ymm0,%ymm13
- vmovdqa %ymm14,%ymm0
- vpunpckldq %ymm15,%ymm0,%ymm14
- vpunpckhdq %ymm15,%ymm0,%ymm15
-
- # interleave 64-bit words in state n, n+2
- vmovdqa 0x00(%rsp),%ymm0
- vmovdqa 0x40(%rsp),%ymm2
- vpunpcklqdq %ymm2,%ymm0,%ymm1
- vpunpckhqdq %ymm2,%ymm0,%ymm2
- vmovdqa %ymm1,0x00(%rsp)
- vmovdqa %ymm2,0x40(%rsp)
- vmovdqa 0x20(%rsp),%ymm0
- vmovdqa 0x60(%rsp),%ymm2
- vpunpcklqdq %ymm2,%ymm0,%ymm1
- vpunpckhqdq %ymm2,%ymm0,%ymm2
- vmovdqa %ymm1,0x20(%rsp)
- vmovdqa %ymm2,0x60(%rsp)
- vmovdqa %ymm4,%ymm0
- vpunpcklqdq %ymm6,%ymm0,%ymm4
- vpunpckhqdq %ymm6,%ymm0,%ymm6
- vmovdqa %ymm5,%ymm0
- vpunpcklqdq %ymm7,%ymm0,%ymm5
- vpunpckhqdq %ymm7,%ymm0,%ymm7
- vmovdqa %ymm8,%ymm0
- vpunpcklqdq %ymm10,%ymm0,%ymm8
- vpunpckhqdq %ymm10,%ymm0,%ymm10
- vmovdqa %ymm9,%ymm0
- vpunpcklqdq %ymm11,%ymm0,%ymm9
- vpunpckhqdq %ymm11,%ymm0,%ymm11
- vmovdqa %ymm12,%ymm0
- vpunpcklqdq %ymm14,%ymm0,%ymm12
- vpunpckhqdq %ymm14,%ymm0,%ymm14
- vmovdqa %ymm13,%ymm0
- vpunpcklqdq %ymm15,%ymm0,%ymm13
- vpunpckhqdq %ymm15,%ymm0,%ymm15
-
- # interleave 128-bit words in state n, n+4
- # xor/write first four blocks
- vmovdqa 0x00(%rsp),%ymm1
- vperm2i128 $0x20,%ymm4,%ymm1,%ymm0
- cmp $0x0020,%rax
- jl .Lxorpart8
- vpxor 0x0000(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0000(%rsi)
- vperm2i128 $0x31,%ymm4,%ymm1,%ymm4
-
- vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
- cmp $0x0040,%rax
- jl .Lxorpart8
- vpxor 0x0020(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0020(%rsi)
- vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
-
- vmovdqa 0x40(%rsp),%ymm1
- vperm2i128 $0x20,%ymm6,%ymm1,%ymm0
- cmp $0x0060,%rax
- jl .Lxorpart8
- vpxor 0x0040(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0040(%rsi)
- vperm2i128 $0x31,%ymm6,%ymm1,%ymm6
-
- vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
- cmp $0x0080,%rax
- jl .Lxorpart8
- vpxor 0x0060(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0060(%rsi)
- vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
-
- vmovdqa 0x20(%rsp),%ymm1
- vperm2i128 $0x20,%ymm5,%ymm1,%ymm0
- cmp $0x00a0,%rax
- jl .Lxorpart8
- vpxor 0x0080(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0080(%rsi)
- vperm2i128 $0x31,%ymm5,%ymm1,%ymm5
-
- vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
- cmp $0x00c0,%rax
- jl .Lxorpart8
- vpxor 0x00a0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x00a0(%rsi)
- vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
-
- vmovdqa 0x60(%rsp),%ymm1
- vperm2i128 $0x20,%ymm7,%ymm1,%ymm0
- cmp $0x00e0,%rax
- jl .Lxorpart8
- vpxor 0x00c0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x00c0(%rsi)
- vperm2i128 $0x31,%ymm7,%ymm1,%ymm7
-
- vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
- cmp $0x0100,%rax
- jl .Lxorpart8
- vpxor 0x00e0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x00e0(%rsi)
- vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
-
- # xor remaining blocks, write to output
- vmovdqa %ymm4,%ymm0
- cmp $0x0120,%rax
- jl .Lxorpart8
- vpxor 0x0100(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0100(%rsi)
-
- vmovdqa %ymm12,%ymm0
- cmp $0x0140,%rax
- jl .Lxorpart8
- vpxor 0x0120(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0120(%rsi)
-
- vmovdqa %ymm6,%ymm0
- cmp $0x0160,%rax
- jl .Lxorpart8
- vpxor 0x0140(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0140(%rsi)
-
- vmovdqa %ymm14,%ymm0
- cmp $0x0180,%rax
- jl .Lxorpart8
- vpxor 0x0160(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0160(%rsi)
-
- vmovdqa %ymm5,%ymm0
- cmp $0x01a0,%rax
- jl .Lxorpart8
- vpxor 0x0180(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x0180(%rsi)
-
- vmovdqa %ymm13,%ymm0
- cmp $0x01c0,%rax
- jl .Lxorpart8
- vpxor 0x01a0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x01a0(%rsi)
-
- vmovdqa %ymm7,%ymm0
- cmp $0x01e0,%rax
- jl .Lxorpart8
- vpxor 0x01c0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x01c0(%rsi)
-
- vmovdqa %ymm15,%ymm0
- cmp $0x0200,%rax
- jl .Lxorpart8
- vpxor 0x01e0(%rdx),%ymm0,%ymm0
- vmovdqu %ymm0,0x01e0(%rsi)
-
-.Ldone8:
- vzeroupper
- lea -8(%r10),%rsp
- ret
-
-.Lxorpart8:
- # xor remaining bytes from partial register into output
- mov %rax,%r9
- and $0x1f,%r9
- jz .Ldone8
- and $~0x1f,%rax
-
- mov %rsi,%r11
-
- lea (%rdx,%rax),%rsi
- mov %rsp,%rdi
- mov %r9,%rcx
- rep movsb
-
- vpxor 0x00(%rsp),%ymm0,%ymm0
- vmovdqa %ymm0,0x00(%rsp)
-
- mov %rsp,%rsi
- lea (%r11,%rax),%rdi
- mov %r9,%rcx
- rep movsb
-
- jmp .Ldone8
-
-ENDPROC(chacha20_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha20-ssse3-x86_64.S b/arch/x86/crypto/chacha20-ssse3-x86_64.S
deleted file mode 100644
index d8ac75bb448f..000000000000
--- a/arch/x86/crypto/chacha20-ssse3-x86_64.S
+++ /dev/null
@@ -1,761 +0,0 @@
-/*
- * ChaCha20 256-bit cipher algorithm, RFC7539, x64 SSSE3 functions
- *
- * Copyright (C) 2015 Martin Willi
- *
- * 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.
- */
-
-#include <linux/linkage.h>
-
-.section .rodata.cst16.ROT8, "aM", @progbits, 16
-.align 16
-ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
-.section .rodata.cst16.ROT16, "aM", @progbits, 16
-.align 16
-ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
-.section .rodata.cst16.CTRINC, "aM", @progbits, 16
-.align 16
-CTRINC: .octa 0x00000003000000020000000100000000
-
-.text
-
-ENTRY(chacha20_block_xor_ssse3)
- # %rdi: Input state matrix, s
- # %rsi: up to 1 data block output, o
- # %rdx: up to 1 data block input, i
- # %rcx: input/output length in bytes
-
- # This function encrypts one ChaCha20 block by loading the state matrix
- # in four SSE registers. It performs matrix operation on four words in
- # parallel, but requires shuffling to rearrange the words after each
- # round. 8/16-bit word rotation is done with the slightly better
- # performing SSSE3 byte shuffling, 7/12-bit word rotation uses
- # traditional shift+OR.
-
- # x0..3 = s0..3
- movdqa 0x00(%rdi),%xmm0
- movdqa 0x10(%rdi),%xmm1
- movdqa 0x20(%rdi),%xmm2
- movdqa 0x30(%rdi),%xmm3
- movdqa %xmm0,%xmm8
- movdqa %xmm1,%xmm9
- movdqa %xmm2,%xmm10
- movdqa %xmm3,%xmm11
-
- movdqa ROT8(%rip),%xmm4
- movdqa ROT16(%rip),%xmm5
-
- mov %rcx,%rax
- mov $10,%ecx
-
-.Ldoubleround:
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- paddd %xmm1,%xmm0
- pxor %xmm0,%xmm3
- pshufb %xmm5,%xmm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- paddd %xmm3,%xmm2
- pxor %xmm2,%xmm1
- movdqa %xmm1,%xmm6
- pslld $12,%xmm6
- psrld $20,%xmm1
- por %xmm6,%xmm1
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- paddd %xmm1,%xmm0
- pxor %xmm0,%xmm3
- pshufb %xmm4,%xmm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- paddd %xmm3,%xmm2
- pxor %xmm2,%xmm1
- movdqa %xmm1,%xmm7
- pslld $7,%xmm7
- psrld $25,%xmm1
- por %xmm7,%xmm1
-
- # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
- pshufd $0x39,%xmm1,%xmm1
- # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- pshufd $0x4e,%xmm2,%xmm2
- # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
- pshufd $0x93,%xmm3,%xmm3
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
- paddd %xmm1,%xmm0
- pxor %xmm0,%xmm3
- pshufb %xmm5,%xmm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
- paddd %xmm3,%xmm2
- pxor %xmm2,%xmm1
- movdqa %xmm1,%xmm6
- pslld $12,%xmm6
- psrld $20,%xmm1
- por %xmm6,%xmm1
-
- # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
- paddd %xmm1,%xmm0
- pxor %xmm0,%xmm3
- pshufb %xmm4,%xmm3
-
- # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
- paddd %xmm3,%xmm2
- pxor %xmm2,%xmm1
- movdqa %xmm1,%xmm7
- pslld $7,%xmm7
- psrld $25,%xmm1
- por %xmm7,%xmm1
-
- # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
- pshufd $0x93,%xmm1,%xmm1
- # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
- pshufd $0x4e,%xmm2,%xmm2
- # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
- pshufd $0x39,%xmm3,%xmm3
-
- dec %ecx
- jnz .Ldoubleround
-
- # o0 = i0 ^ (x0 + s0)
- paddd %xmm8,%xmm0
- cmp $0x10,%rax
- jl .Lxorpart
- movdqu 0x00(%rdx),%xmm4
- pxor %xmm4,%xmm0
- movdqu %xmm0,0x00(%rsi)
- # o1 = i1 ^ (x1 + s1)
- paddd %xmm9,%xmm1
- movdqa %xmm1,%xmm0
- cmp $0x20,%rax
- jl .Lxorpart
- movdqu 0x10(%rdx),%xmm0
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x10(%rsi)
- # o2 = i2 ^ (x2 + s2)
- paddd %xmm10,%xmm2
- movdqa %xmm2,%xmm0
- cmp $0x30,%rax
- jl .Lxorpart
- movdqu 0x20(%rdx),%xmm0
- pxor %xmm2,%xmm0
- movdqu %xmm0,0x20(%rsi)
- # o3 = i3 ^ (x3 + s3)
- paddd %xmm11,%xmm3
- movdqa %xmm3,%xmm0
- cmp $0x40,%rax
- jl .Lxorpart
- movdqu 0x30(%rdx),%xmm0
- pxor %xmm3,%xmm0
- movdqu %xmm0,0x30(%rsi)
-
-.Ldone:
- ret
-
-.Lxorpart:
- # xor remaining bytes from partial register into output
- mov %rax,%r9
- and $0x0f,%r9
- jz .Ldone
- and $~0x0f,%rax
-
- mov %rsi,%r11
-
- lea 8(%rsp),%r10
- sub $0x10,%rsp
- and $~31,%rsp
-
- lea (%rdx,%rax),%rsi
- mov %rsp,%rdi
- mov %r9,%rcx
- rep movsb
-
- pxor 0x00(%rsp),%xmm0
- movdqa %xmm0,0x00(%rsp)
-
- mov %rsp,%rsi
- lea (%r11,%rax),%rdi
- mov %r9,%rcx
- rep movsb
-
- lea -8(%r10),%rsp
- jmp .Ldone
-
-ENDPROC(chacha20_block_xor_ssse3)
-
-ENTRY(chacha20_4block_xor_ssse3)
- # %rdi: Input state matrix, s
- # %rsi: up to 4 data blocks output, o
- # %rdx: up to 4 data blocks input, i
- # %rcx: input/output length in bytes
-
- # This function encrypts four consecutive ChaCha20 blocks by loading the
- # the state matrix in SSE registers four times. As we need some scratch
- # registers, we save the first four registers on the stack. The
- # algorithm performs each operation on the corresponding word of each
- # state matrix, hence requires no word shuffling. For final XORing step
- # we transpose the matrix by interleaving 32- and then 64-bit words,
- # which allows us to do XOR in SSE registers. 8/16-bit word rotation is
- # done with the slightly better performing SSSE3 byte shuffling,
- # 7/12-bit word rotation uses traditional shift+OR.
-
- lea 8(%rsp),%r10
- sub $0x80,%rsp
- and $~63,%rsp
- mov %rcx,%rax
-
- # x0..15[0-3] = s0..3[0..3]
- movq 0x00(%rdi),%xmm1
- pshufd $0x00,%xmm1,%xmm0
- pshufd $0x55,%xmm1,%xmm1
- movq 0x08(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- movq 0x10(%rdi),%xmm5
- pshufd $0x00,%xmm5,%xmm4
- pshufd $0x55,%xmm5,%xmm5
- movq 0x18(%rdi),%xmm7
- pshufd $0x00,%xmm7,%xmm6
- pshufd $0x55,%xmm7,%xmm7
- movq 0x20(%rdi),%xmm9
- pshufd $0x00,%xmm9,%xmm8
- pshufd $0x55,%xmm9,%xmm9
- movq 0x28(%rdi),%xmm11
- pshufd $0x00,%xmm11,%xmm10
- pshufd $0x55,%xmm11,%xmm11
- movq 0x30(%rdi),%xmm13
- pshufd $0x00,%xmm13,%xmm12
- pshufd $0x55,%xmm13,%xmm13
- movq 0x38(%rdi),%xmm15
- pshufd $0x00,%xmm15,%xmm14
- pshufd $0x55,%xmm15,%xmm15
- # x0..3 on stack
- movdqa %xmm0,0x00(%rsp)
- movdqa %xmm1,0x10(%rsp)
- movdqa %xmm2,0x20(%rsp)
- movdqa %xmm3,0x30(%rsp)
-
- movdqa CTRINC(%rip),%xmm1
- movdqa ROT8(%rip),%xmm2
- movdqa ROT16(%rip),%xmm3
-
- # x12 += counter values 0-3
- paddd %xmm1,%xmm12
-
- mov $10,%ecx
-
-.Ldoubleround4:
- # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
- movdqa 0x00(%rsp),%xmm0
- paddd %xmm4,%xmm0
- movdqa %xmm0,0x00(%rsp)
- pxor %xmm0,%xmm12
- pshufb %xmm3,%xmm12
- # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
- movdqa 0x10(%rsp),%xmm0
- paddd %xmm5,%xmm0
- movdqa %xmm0,0x10(%rsp)
- pxor %xmm0,%xmm13
- pshufb %xmm3,%xmm13
- # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
- movdqa 0x20(%rsp),%xmm0
- paddd %xmm6,%xmm0
- movdqa %xmm0,0x20(%rsp)
- pxor %xmm0,%xmm14
- pshufb %xmm3,%xmm14
- # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
- movdqa 0x30(%rsp),%xmm0
- paddd %xmm7,%xmm0
- movdqa %xmm0,0x30(%rsp)
- pxor %xmm0,%xmm15
- pshufb %xmm3,%xmm15
-
- # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
- paddd %xmm12,%xmm8
- pxor %xmm8,%xmm4
- movdqa %xmm4,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm4
- por %xmm0,%xmm4
- # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
- paddd %xmm13,%xmm9
- pxor %xmm9,%xmm5
- movdqa %xmm5,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm5
- por %xmm0,%xmm5
- # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
- paddd %xmm14,%xmm10
- pxor %xmm10,%xmm6
- movdqa %xmm6,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm6
- por %xmm0,%xmm6
- # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
- paddd %xmm15,%xmm11
- pxor %xmm11,%xmm7
- movdqa %xmm7,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm7
- por %xmm0,%xmm7
-
- # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
- movdqa 0x00(%rsp),%xmm0
- paddd %xmm4,%xmm0
- movdqa %xmm0,0x00(%rsp)
- pxor %xmm0,%xmm12
- pshufb %xmm2,%xmm12
- # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
- movdqa 0x10(%rsp),%xmm0
- paddd %xmm5,%xmm0
- movdqa %xmm0,0x10(%rsp)
- pxor %xmm0,%xmm13
- pshufb %xmm2,%xmm13
- # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
- movdqa 0x20(%rsp),%xmm0
- paddd %xmm6,%xmm0
- movdqa %xmm0,0x20(%rsp)
- pxor %xmm0,%xmm14
- pshufb %xmm2,%xmm14
- # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
- movdqa 0x30(%rsp),%xmm0
- paddd %xmm7,%xmm0
- movdqa %xmm0,0x30(%rsp)
- pxor %xmm0,%xmm15
- pshufb %xmm2,%xmm15
-
- # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
- paddd %xmm12,%xmm8
- pxor %xmm8,%xmm4
- movdqa %xmm4,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm4
- por %xmm0,%xmm4
- # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
- paddd %xmm13,%xmm9
- pxor %xmm9,%xmm5
- movdqa %xmm5,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm5
- por %xmm0,%xmm5
- # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
- paddd %xmm14,%xmm10
- pxor %xmm10,%xmm6
- movdqa %xmm6,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm6
- por %xmm0,%xmm6
- # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
- paddd %xmm15,%xmm11
- pxor %xmm11,%xmm7
- movdqa %xmm7,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm7
- por %xmm0,%xmm7
-
- # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
- movdqa 0x00(%rsp),%xmm0
- paddd %xmm5,%xmm0
- movdqa %xmm0,0x00(%rsp)
- pxor %xmm0,%xmm15
- pshufb %xmm3,%xmm15
- # x1 += x6, x12 = rotl32(x12 ^ x1, 16)
- movdqa 0x10(%rsp),%xmm0
- paddd %xmm6,%xmm0
- movdqa %xmm0,0x10(%rsp)
- pxor %xmm0,%xmm12
- pshufb %xmm3,%xmm12
- # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
- movdqa 0x20(%rsp),%xmm0
- paddd %xmm7,%xmm0
- movdqa %xmm0,0x20(%rsp)
- pxor %xmm0,%xmm13
- pshufb %xmm3,%xmm13
- # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
- movdqa 0x30(%rsp),%xmm0
- paddd %xmm4,%xmm0
- movdqa %xmm0,0x30(%rsp)
- pxor %xmm0,%xmm14
- pshufb %xmm3,%xmm14
-
- # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
- paddd %xmm15,%xmm10
- pxor %xmm10,%xmm5
- movdqa %xmm5,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm5
- por %xmm0,%xmm5
- # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
- paddd %xmm12,%xmm11
- pxor %xmm11,%xmm6
- movdqa %xmm6,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm6
- por %xmm0,%xmm6
- # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
- paddd %xmm13,%xmm8
- pxor %xmm8,%xmm7
- movdqa %xmm7,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm7
- por %xmm0,%xmm7
- # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
- paddd %xmm14,%xmm9
- pxor %xmm9,%xmm4
- movdqa %xmm4,%xmm0
- pslld $12,%xmm0
- psrld $20,%xmm4
- por %xmm0,%xmm4
-
- # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
- movdqa 0x00(%rsp),%xmm0
- paddd %xmm5,%xmm0
- movdqa %xmm0,0x00(%rsp)
- pxor %xmm0,%xmm15
- pshufb %xmm2,%xmm15
- # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
- movdqa 0x10(%rsp),%xmm0
- paddd %xmm6,%xmm0
- movdqa %xmm0,0x10(%rsp)
- pxor %xmm0,%xmm12
- pshufb %xmm2,%xmm12
- # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
- movdqa 0x20(%rsp),%xmm0
- paddd %xmm7,%xmm0
- movdqa %xmm0,0x20(%rsp)
- pxor %xmm0,%xmm13
- pshufb %xmm2,%xmm13
- # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
- movdqa 0x30(%rsp),%xmm0
- paddd %xmm4,%xmm0
- movdqa %xmm0,0x30(%rsp)
- pxor %xmm0,%xmm14
- pshufb %xmm2,%xmm14
-
- # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
- paddd %xmm15,%xmm10
- pxor %xmm10,%xmm5
- movdqa %xmm5,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm5
- por %xmm0,%xmm5
- # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
- paddd %xmm12,%xmm11
- pxor %xmm11,%xmm6
- movdqa %xmm6,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm6
- por %xmm0,%xmm6
- # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
- paddd %xmm13,%xmm8
- pxor %xmm8,%xmm7
- movdqa %xmm7,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm7
- por %xmm0,%xmm7
- # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
- paddd %xmm14,%xmm9
- pxor %xmm9,%xmm4
- movdqa %xmm4,%xmm0
- pslld $7,%xmm0
- psrld $25,%xmm4
- por %xmm0,%xmm4
-
- dec %ecx
- jnz .Ldoubleround4
-
- # x0[0-3] += s0[0]
- # x1[0-3] += s0[1]
- movq 0x00(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd 0x00(%rsp),%xmm2
- movdqa %xmm2,0x00(%rsp)
- paddd 0x10(%rsp),%xmm3
- movdqa %xmm3,0x10(%rsp)
- # x2[0-3] += s0[2]
- # x3[0-3] += s0[3]
- movq 0x08(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd 0x20(%rsp),%xmm2
- movdqa %xmm2,0x20(%rsp)
- paddd 0x30(%rsp),%xmm3
- movdqa %xmm3,0x30(%rsp)
-
- # x4[0-3] += s1[0]
- # x5[0-3] += s1[1]
- movq 0x10(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd %xmm2,%xmm4
- paddd %xmm3,%xmm5
- # x6[0-3] += s1[2]
- # x7[0-3] += s1[3]
- movq 0x18(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd %xmm2,%xmm6
- paddd %xmm3,%xmm7
-
- # x8[0-3] += s2[0]
- # x9[0-3] += s2[1]
- movq 0x20(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd %xmm2,%xmm8
- paddd %xmm3,%xmm9
- # x10[0-3] += s2[2]
- # x11[0-3] += s2[3]
- movq 0x28(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd %xmm2,%xmm10
- paddd %xmm3,%xmm11
-
- # x12[0-3] += s3[0]
- # x13[0-3] += s3[1]
- movq 0x30(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd %xmm2,%xmm12
- paddd %xmm3,%xmm13
- # x14[0-3] += s3[2]
- # x15[0-3] += s3[3]
- movq 0x38(%rdi),%xmm3
- pshufd $0x00,%xmm3,%xmm2
- pshufd $0x55,%xmm3,%xmm3
- paddd %xmm2,%xmm14
- paddd %xmm3,%xmm15
-
- # x12 += counter values 0-3
- paddd %xmm1,%xmm12
-
- # interleave 32-bit words in state n, n+1
- movdqa 0x00(%rsp),%xmm0
- movdqa 0x10(%rsp),%xmm1
- movdqa %xmm0,%xmm2
- punpckldq %xmm1,%xmm2
- punpckhdq %xmm1,%xmm0
- movdqa %xmm2,0x00(%rsp)
- movdqa %xmm0,0x10(%rsp)
- movdqa 0x20(%rsp),%xmm0
- movdqa 0x30(%rsp),%xmm1
- movdqa %xmm0,%xmm2
- punpckldq %xmm1,%xmm2
- punpckhdq %xmm1,%xmm0
- movdqa %xmm2,0x20(%rsp)
- movdqa %xmm0,0x30(%rsp)
- movdqa %xmm4,%xmm0
- punpckldq %xmm5,%xmm4
- punpckhdq %xmm5,%xmm0
- movdqa %xmm0,%xmm5
- movdqa %xmm6,%xmm0
- punpckldq %xmm7,%xmm6
- punpckhdq %xmm7,%xmm0
- movdqa %xmm0,%xmm7
- movdqa %xmm8,%xmm0
- punpckldq %xmm9,%xmm8
- punpckhdq %xmm9,%xmm0
- movdqa %xmm0,%xmm9
- movdqa %xmm10,%xmm0
- punpckldq %xmm11,%xmm10
- punpckhdq %xmm11,%xmm0
- movdqa %xmm0,%xmm11
- movdqa %xmm12,%xmm0
- punpckldq %xmm13,%xmm12
- punpckhdq %xmm13,%xmm0
- movdqa %xmm0,%xmm13
- movdqa %xmm14,%xmm0
- punpckldq %xmm15,%xmm14
- punpckhdq %xmm15,%xmm0
- movdqa %xmm0,%xmm15
-
- # interleave 64-bit words in state n, n+2
- movdqa 0x00(%rsp),%xmm0
- movdqa 0x20(%rsp),%xmm1
- movdqa %xmm0,%xmm2
- punpcklqdq %xmm1,%xmm2
- punpckhqdq %xmm1,%xmm0
- movdqa %xmm2,0x00(%rsp)
- movdqa %xmm0,0x20(%rsp)
- movdqa 0x10(%rsp),%xmm0
- movdqa 0x30(%rsp),%xmm1
- movdqa %xmm0,%xmm2
- punpcklqdq %xmm1,%xmm2
- punpckhqdq %xmm1,%xmm0
- movdqa %xmm2,0x10(%rsp)
- movdqa %xmm0,0x30(%rsp)
- movdqa %xmm4,%xmm0
- punpcklqdq %xmm6,%xmm4
- punpckhqdq %xmm6,%xmm0
- movdqa %xmm0,%xmm6
- movdqa %xmm5,%xmm0
- punpcklqdq %xmm7,%xmm5
- punpckhqdq %xmm7,%xmm0
- movdqa %xmm0,%xmm7
- movdqa %xmm8,%xmm0
- punpcklqdq %xmm10,%xmm8
- punpckhqdq %xmm10,%xmm0
- movdqa %xmm0,%xmm10
- movdqa %xmm9,%xmm0
- punpcklqdq %xmm11,%xmm9
- punpckhqdq %xmm11,%xmm0
- movdqa %xmm0,%xmm11
- movdqa %xmm12,%xmm0
- punpcklqdq %xmm14,%xmm12
- punpckhqdq %xmm14,%xmm0
- movdqa %xmm0,%xmm14
- movdqa %xmm13,%xmm0
- punpcklqdq %xmm15,%xmm13
- punpckhqdq %xmm15,%xmm0
- movdqa %xmm0,%xmm15
-
- # xor with corresponding input, write to output
- movdqa 0x00(%rsp),%xmm0
- cmp $0x10,%rax
- jl .Lxorpart4
- movdqu 0x00(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x00(%rsi)
-
- movdqu %xmm4,%xmm0
- cmp $0x20,%rax
- jl .Lxorpart4
- movdqu 0x10(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x10(%rsi)
-
- movdqu %xmm8,%xmm0
- cmp $0x30,%rax
- jl .Lxorpart4
- movdqu 0x20(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x20(%rsi)
-
- movdqu %xmm12,%xmm0
- cmp $0x40,%rax
- jl .Lxorpart4
- movdqu 0x30(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x30(%rsi)
-
- movdqa 0x20(%rsp),%xmm0
- cmp $0x50,%rax
- jl .Lxorpart4
- movdqu 0x40(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x40(%rsi)
-
- movdqu %xmm6,%xmm0
- cmp $0x60,%rax
- jl .Lxorpart4
- movdqu 0x50(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x50(%rsi)
-
- movdqu %xmm10,%xmm0
- cmp $0x70,%rax
- jl .Lxorpart4
- movdqu 0x60(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x60(%rsi)
-
- movdqu %xmm14,%xmm0
- cmp $0x80,%rax
- jl .Lxorpart4
- movdqu 0x70(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x70(%rsi)
-
- movdqa 0x10(%rsp),%xmm0
- cmp $0x90,%rax
- jl .Lxorpart4
- movdqu 0x80(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x80(%rsi)
-
- movdqu %xmm5,%xmm0
- cmp $0xa0,%rax
- jl .Lxorpart4
- movdqu 0x90(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0x90(%rsi)
-
- movdqu %xmm9,%xmm0
- cmp $0xb0,%rax
- jl .Lxorpart4
- movdqu 0xa0(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0xa0(%rsi)
-
- movdqu %xmm13,%xmm0
- cmp $0xc0,%rax
- jl .Lxorpart4
- movdqu 0xb0(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0xb0(%rsi)
-
- movdqa 0x30(%rsp),%xmm0
- cmp $0xd0,%rax
- jl .Lxorpart4
- movdqu 0xc0(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0xc0(%rsi)
-
- movdqu %xmm7,%xmm0
- cmp $0xe0,%rax
- jl .Lxorpart4
- movdqu 0xd0(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0xd0(%rsi)
-
- movdqu %xmm11,%xmm0
- cmp $0xf0,%rax
- jl .Lxorpart4
- movdqu 0xe0(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0xe0(%rsi)
-
- movdqu %xmm15,%xmm0
- cmp $0x100,%rax
- jl .Lxorpart4
- movdqu 0xf0(%rdx),%xmm1
- pxor %xmm1,%xmm0
- movdqu %xmm0,0xf0(%rsi)
-
-.Ldone4:
- lea -8(%r10),%rsp
- ret
-
-.Lxorpart4:
- # xor remaining bytes from partial register into output
- mov %rax,%r9
- and $0x0f,%r9
- jz .Ldone4
- and $~0x0f,%rax
-
- mov %rsi,%r11
-
- lea (%rdx,%rax),%rsi
- mov %rsp,%rdi
- mov %r9,%rcx
- rep movsb
-
- pxor 0x00(%rsp),%xmm0
- movdqa %xmm0,0x00(%rsp)
-
- mov %rsp,%rsi
- lea (%r11,%rax),%rdi
- mov %r9,%rcx
- rep movsb
-
- jmp .Ldone4
-
-ENDPROC(chacha20_4block_xor_ssse3)
diff --git a/arch/x86/crypto/chacha20-zinc-x86_64.S b/arch/x86/crypto/chacha20-zinc-x86_64.S
new file mode 100644
index 000000000000..3d10c7f21642
--- /dev/null
+++ b/arch/x86/crypto/chacha20-zinc-x86_64.S
@@ -0,0 +1,2632 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * Copyright (C) 2017 Samuel Neves <sneves@xxxxxxxxx>. All Rights Reserved.
+ * Copyright (C) 2015-2018 Jason A. Donenfeld <Jason@xxxxxxxxx>. All Rights Reserved.
+ * Copyright (C) 2006-2017 CRYPTOGAMS by <appro@xxxxxxxxxxx>. All Rights Reserved.
+ *
+ * This is based in part on Andy Polyakov's implementation from CRYPTOGAMS.
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst16.Lzero, "aM", @progbits, 16
+.align 16
+.Lzero:
+.long 0,0,0,0
+.section .rodata.cst16.Lone, "aM", @progbits, 16
+.align 16
+.Lone:
+.long 1,0,0,0
+.section .rodata.cst16.Linc, "aM", @progbits, 16
+.align 16
+.Linc:
+.long 0,1,2,3
+.section .rodata.cst16.Lfour, "aM", @progbits, 16
+.align 16
+.Lfour:
+.long 4,4,4,4
+.section .rodata.cst32.Lincy, "aM", @progbits, 32
+.align 32
+.Lincy:
+.long 0,2,4,6,1,3,5,7
+.section .rodata.cst32.Leight, "aM", @progbits, 32
+.align 32
+.Leight:
+.long 8,8,8,8,8,8,8,8
+.section .rodata.cst16.Lrot16, "aM", @progbits, 16
+.align 16
+.Lrot16:
+.byte 0x2,0x3,0x0,0x1, 0x6,0x7,0x4,0x5, 0xa,0xb,0x8,0x9, 0xe,0xf,0xc,0xd
+.section .rodata.cst16.Lrot24, "aM", @progbits, 16
+.align 16
+.Lrot24:
+.byte 0x3,0x0,0x1,0x2, 0x7,0x4,0x5,0x6, 0xb,0x8,0x9,0xa, 0xf,0xc,0xd,0xe
+.section .rodata.cst16.Lsigma, "aM", @progbits, 16
+.align 16
+.Lsigma:
+.byte 101,120,112,97,110,100,32,51,50,45,98,121,116,101,32,107,0
+.section .rodata.cst64.Lzeroz, "aM", @progbits, 64
+.align 64
+.Lzeroz:
+.long 0,0,0,0, 1,0,0,0, 2,0,0,0, 3,0,0,0
+.section .rodata.cst64.Lfourz, "aM", @progbits, 64
+.align 64
+.Lfourz:
+.long 4,0,0,0, 4,0,0,0, 4,0,0,0, 4,0,0,0
+.section .rodata.cst64.Lincz, "aM", @progbits, 64
+.align 64
+.Lincz:
+.long 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
+.section .rodata.cst64.Lsixteen, "aM", @progbits, 64
+.align 64
+.Lsixteen:
+.long 16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16
+.section .rodata.cst32.Ltwoy, "aM", @progbits, 32
+.align 64
+.Ltwoy:
+.long 2,0,0,0, 2,0,0,0
+
+.text
+
+#ifdef CONFIG_AS_SSSE3
+.align 32
+ENTRY(hchacha20_ssse3)
+ movdqa .Lsigma(%rip),%xmm0
+ movdqu (%rdx),%xmm1
+ movdqu 16(%rdx),%xmm2
+ movdqu (%rsi),%xmm3
+ movdqa .Lrot16(%rip),%xmm6
+ movdqa .Lrot24(%rip),%xmm7
+ movq $10,%r8
+ .align 32
+.Loop_hssse3:
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm6,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $20,%xmm1
+ pslld $12,%xmm4
+ por %xmm4,%xmm1
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm7,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $25,%xmm1
+ pslld $7,%xmm4
+ por %xmm4,%xmm1
+ pshufd $78,%xmm2,%xmm2
+ pshufd $57,%xmm1,%xmm1
+ pshufd $147,%xmm3,%xmm3
+ nop
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm6,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $20,%xmm1
+ pslld $12,%xmm4
+ por %xmm4,%xmm1
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm7,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $25,%xmm1
+ pslld $7,%xmm4
+ por %xmm4,%xmm1
+ pshufd $78,%xmm2,%xmm2
+ pshufd $147,%xmm1,%xmm1
+ pshufd $57,%xmm3,%xmm3
+ decq %r8
+ jnz .Loop_hssse3
+ movdqu %xmm0,0(%rdi)
+ movdqu %xmm3,16(%rdi)
+ ret
+ENDPROC(hchacha20_ssse3)
+
+.align 32
+ENTRY(chacha20_ssse3)
+.Lchacha20_ssse3:
+ cmpq $0,%rdx
+ je .Lssse3_epilogue
+ leaq 8(%rsp),%r10
+
+ cmpq $128,%rdx
+ ja .Lchacha20_4x
+
+.Ldo_sse3_after_all:
+ subq $64+8,%rsp
+ andq $-32,%rsp
+ movdqa .Lsigma(%rip),%xmm0
+ movdqu (%rcx),%xmm1
+ movdqu 16(%rcx),%xmm2
+ movdqu (%r8),%xmm3
+ movdqa .Lrot16(%rip),%xmm6
+ movdqa .Lrot24(%rip),%xmm7
+
+ movdqa %xmm0,0(%rsp)
+ movdqa %xmm1,16(%rsp)
+ movdqa %xmm2,32(%rsp)
+ movdqa %xmm3,48(%rsp)
+ movq $10,%r8
+ jmp .Loop_ssse3
+
+.align 32
+.Loop_outer_ssse3:
+ movdqa .Lone(%rip),%xmm3
+ movdqa 0(%rsp),%xmm0
+ movdqa 16(%rsp),%xmm1
+ movdqa 32(%rsp),%xmm2
+ paddd 48(%rsp),%xmm3
+ movq $10,%r8
+ movdqa %xmm3,48(%rsp)
+ jmp .Loop_ssse3
+
+.align 32
+.Loop_ssse3:
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm6,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $20,%xmm1
+ pslld $12,%xmm4
+ por %xmm4,%xmm1
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm7,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $25,%xmm1
+ pslld $7,%xmm4
+ por %xmm4,%xmm1
+ pshufd $78,%xmm2,%xmm2
+ pshufd $57,%xmm1,%xmm1
+ pshufd $147,%xmm3,%xmm3
+ nop
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm6,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $20,%xmm1
+ pslld $12,%xmm4
+ por %xmm4,%xmm1
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm7,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm4
+ psrld $25,%xmm1
+ pslld $7,%xmm4
+ por %xmm4,%xmm1
+ pshufd $78,%xmm2,%xmm2
+ pshufd $147,%xmm1,%xmm1
+ pshufd $57,%xmm3,%xmm3
+ decq %r8
+ jnz .Loop_ssse3
+ paddd 0(%rsp),%xmm0
+ paddd 16(%rsp),%xmm1
+ paddd 32(%rsp),%xmm2
+ paddd 48(%rsp),%xmm3
+
+ cmpq $64,%rdx
+ jb .Ltail_ssse3
+
+ movdqu 0(%rsi),%xmm4
+ movdqu 16(%rsi),%xmm5
+ pxor %xmm4,%xmm0
+ movdqu 32(%rsi),%xmm4
+ pxor %xmm5,%xmm1
+ movdqu 48(%rsi),%xmm5
+ leaq 64(%rsi),%rsi
+ pxor %xmm4,%xmm2
+ pxor %xmm5,%xmm3
+
+ movdqu %xmm0,0(%rdi)
+ movdqu %xmm1,16(%rdi)
+ movdqu %xmm2,32(%rdi)
+ movdqu %xmm3,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ subq $64,%rdx
+ jnz .Loop_outer_ssse3
+
+ jmp .Ldone_ssse3
+
+.align 16
+.Ltail_ssse3:
+ movdqa %xmm0,0(%rsp)
+ movdqa %xmm1,16(%rsp)
+ movdqa %xmm2,32(%rsp)
+ movdqa %xmm3,48(%rsp)
+ xorq %r8,%r8
+
+.Loop_tail_ssse3:
+ movzbl (%rsi,%r8,1),%eax
+ movzbl (%rsp,%r8,1),%ecx
+ leaq 1(%r8),%r8
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r8,1)
+ decq %rdx
+ jnz .Loop_tail_ssse3
+
+.Ldone_ssse3:
+ leaq -8(%r10),%rsp
+
+.Lssse3_epilogue:
+ ret
+
+.align 32
+.Lchacha20_4x:
+ leaq 8(%rsp),%r10
+
+.Lproceed4x:
+ subq $0x140+8,%rsp
+ andq $-32,%rsp
+ movdqa .Lsigma(%rip),%xmm11
+ movdqu (%rcx),%xmm15
+ movdqu 16(%rcx),%xmm7
+ movdqu (%r8),%xmm3
+ leaq 256(%rsp),%rcx
+ leaq .Lrot16(%rip),%r9
+ leaq .Lrot24(%rip),%r11
+
+ pshufd $0x00,%xmm11,%xmm8
+ pshufd $0x55,%xmm11,%xmm9
+ movdqa %xmm8,64(%rsp)
+ pshufd $0xaa,%xmm11,%xmm10
+ movdqa %xmm9,80(%rsp)
+ pshufd $0xff,%xmm11,%xmm11
+ movdqa %xmm10,96(%rsp)
+ movdqa %xmm11,112(%rsp)
+
+ pshufd $0x00,%xmm15,%xmm12
+ pshufd $0x55,%xmm15,%xmm13
+ movdqa %xmm12,128-256(%rcx)
+ pshufd $0xaa,%xmm15,%xmm14
+ movdqa %xmm13,144-256(%rcx)
+ pshufd $0xff,%xmm15,%xmm15
+ movdqa %xmm14,160-256(%rcx)
+ movdqa %xmm15,176-256(%rcx)
+
+ pshufd $0x00,%xmm7,%xmm4
+ pshufd $0x55,%xmm7,%xmm5
+ movdqa %xmm4,192-256(%rcx)
+ pshufd $0xaa,%xmm7,%xmm6
+ movdqa %xmm5,208-256(%rcx)
+ pshufd $0xff,%xmm7,%xmm7
+ movdqa %xmm6,224-256(%rcx)
+ movdqa %xmm7,240-256(%rcx)
+
+ pshufd $0x00,%xmm3,%xmm0
+ pshufd $0x55,%xmm3,%xmm1
+ paddd .Linc(%rip),%xmm0
+ pshufd $0xaa,%xmm3,%xmm2
+ movdqa %xmm1,272-256(%rcx)
+ pshufd $0xff,%xmm3,%xmm3
+ movdqa %xmm2,288-256(%rcx)
+ movdqa %xmm3,304-256(%rcx)
+
+ jmp .Loop_enter4x
+
+.align 32
+.Loop_outer4x:
+ movdqa 64(%rsp),%xmm8
+ movdqa 80(%rsp),%xmm9
+ movdqa 96(%rsp),%xmm10
+ movdqa 112(%rsp),%xmm11
+ movdqa 128-256(%rcx),%xmm12
+ movdqa 144-256(%rcx),%xmm13
+ movdqa 160-256(%rcx),%xmm14
+ movdqa 176-256(%rcx),%xmm15
+ movdqa 192-256(%rcx),%xmm4
+ movdqa 208-256(%rcx),%xmm5
+ movdqa 224-256(%rcx),%xmm6
+ movdqa 240-256(%rcx),%xmm7
+ movdqa 256-256(%rcx),%xmm0
+ movdqa 272-256(%rcx),%xmm1
+ movdqa 288-256(%rcx),%xmm2
+ movdqa 304-256(%rcx),%xmm3
+ paddd .Lfour(%rip),%xmm0
+
+.Loop_enter4x:
+ movdqa %xmm6,32(%rsp)
+ movdqa %xmm7,48(%rsp)
+ movdqa (%r9),%xmm7
+ movl $10,%eax
+ movdqa %xmm0,256-256(%rcx)
+ jmp .Loop4x
+
+.align 32
+.Loop4x:
+ paddd %xmm12,%xmm8
+ paddd %xmm13,%xmm9
+ pxor %xmm8,%xmm0
+ pxor %xmm9,%xmm1
+ pshufb %xmm7,%xmm0
+ pshufb %xmm7,%xmm1
+ paddd %xmm0,%xmm4
+ paddd %xmm1,%xmm5
+ pxor %xmm4,%xmm12
+ pxor %xmm5,%xmm13
+ movdqa %xmm12,%xmm6
+ pslld $12,%xmm12
+ psrld $20,%xmm6
+ movdqa %xmm13,%xmm7
+ pslld $12,%xmm13
+ por %xmm6,%xmm12
+ psrld $20,%xmm7
+ movdqa (%r11),%xmm6
+ por %xmm7,%xmm13
+ paddd %xmm12,%xmm8
+ paddd %xmm13,%xmm9
+ pxor %xmm8,%xmm0
+ pxor %xmm9,%xmm1
+ pshufb %xmm6,%xmm0
+ pshufb %xmm6,%xmm1
+ paddd %xmm0,%xmm4
+ paddd %xmm1,%xmm5
+ pxor %xmm4,%xmm12
+ pxor %xmm5,%xmm13
+ movdqa %xmm12,%xmm7
+ pslld $7,%xmm12
+ psrld $25,%xmm7
+ movdqa %xmm13,%xmm6
+ pslld $7,%xmm13
+ por %xmm7,%xmm12
+ psrld $25,%xmm6
+ movdqa (%r9),%xmm7
+ por %xmm6,%xmm13
+ movdqa %xmm4,0(%rsp)
+ movdqa %xmm5,16(%rsp)
+ movdqa 32(%rsp),%xmm4
+ movdqa 48(%rsp),%xmm5
+ paddd %xmm14,%xmm10
+ paddd %xmm15,%xmm11
+ pxor %xmm10,%xmm2
+ pxor %xmm11,%xmm3
+ pshufb %xmm7,%xmm2
+ pshufb %xmm7,%xmm3
+ paddd %xmm2,%xmm4
+ paddd %xmm3,%xmm5
+ pxor %xmm4,%xmm14
+ pxor %xmm5,%xmm15
+ movdqa %xmm14,%xmm6
+ pslld $12,%xmm14
+ psrld $20,%xmm6
+ movdqa %xmm15,%xmm7
+ pslld $12,%xmm15
+ por %xmm6,%xmm14
+ psrld $20,%xmm7
+ movdqa (%r11),%xmm6
+ por %xmm7,%xmm15
+ paddd %xmm14,%xmm10
+ paddd %xmm15,%xmm11
+ pxor %xmm10,%xmm2
+ pxor %xmm11,%xmm3
+ pshufb %xmm6,%xmm2
+ pshufb %xmm6,%xmm3
+ paddd %xmm2,%xmm4
+ paddd %xmm3,%xmm5
+ pxor %xmm4,%xmm14
+ pxor %xmm5,%xmm15
+ movdqa %xmm14,%xmm7
+ pslld $7,%xmm14
+ psrld $25,%xmm7
+ movdqa %xmm15,%xmm6
+ pslld $7,%xmm15
+ por %xmm7,%xmm14
+ psrld $25,%xmm6
+ movdqa (%r9),%xmm7
+ por %xmm6,%xmm15
+ paddd %xmm13,%xmm8
+ paddd %xmm14,%xmm9
+ pxor %xmm8,%xmm3
+ pxor %xmm9,%xmm0
+ pshufb %xmm7,%xmm3
+ pshufb %xmm7,%xmm0
+ paddd %xmm3,%xmm4
+ paddd %xmm0,%xmm5
+ pxor %xmm4,%xmm13
+ pxor %xmm5,%xmm14
+ movdqa %xmm13,%xmm6
+ pslld $12,%xmm13
+ psrld $20,%xmm6
+ movdqa %xmm14,%xmm7
+ pslld $12,%xmm14
+ por %xmm6,%xmm13
+ psrld $20,%xmm7
+ movdqa (%r11),%xmm6
+ por %xmm7,%xmm14
+ paddd %xmm13,%xmm8
+ paddd %xmm14,%xmm9
+ pxor %xmm8,%xmm3
+ pxor %xmm9,%xmm0
+ pshufb %xmm6,%xmm3
+ pshufb %xmm6,%xmm0
+ paddd %xmm3,%xmm4
+ paddd %xmm0,%xmm5
+ pxor %xmm4,%xmm13
+ pxor %xmm5,%xmm14
+ movdqa %xmm13,%xmm7
+ pslld $7,%xmm13
+ psrld $25,%xmm7
+ movdqa %xmm14,%xmm6
+ pslld $7,%xmm14
+ por %xmm7,%xmm13
+ psrld $25,%xmm6
+ movdqa (%r9),%xmm7
+ por %xmm6,%xmm14
+ movdqa %xmm4,32(%rsp)
+ movdqa %xmm5,48(%rsp)
+ movdqa 0(%rsp),%xmm4
+ movdqa 16(%rsp),%xmm5
+ paddd %xmm15,%xmm10
+ paddd %xmm12,%xmm11
+ pxor %xmm10,%xmm1
+ pxor %xmm11,%xmm2
+ pshufb %xmm7,%xmm1
+ pshufb %xmm7,%xmm2
+ paddd %xmm1,%xmm4
+ paddd %xmm2,%xmm5
+ pxor %xmm4,%xmm15
+ pxor %xmm5,%xmm12
+ movdqa %xmm15,%xmm6
+ pslld $12,%xmm15
+ psrld $20,%xmm6
+ movdqa %xmm12,%xmm7
+ pslld $12,%xmm12
+ por %xmm6,%xmm15
+ psrld $20,%xmm7
+ movdqa (%r11),%xmm6
+ por %xmm7,%xmm12
+ paddd %xmm15,%xmm10
+ paddd %xmm12,%xmm11
+ pxor %xmm10,%xmm1
+ pxor %xmm11,%xmm2
+ pshufb %xmm6,%xmm1
+ pshufb %xmm6,%xmm2
+ paddd %xmm1,%xmm4
+ paddd %xmm2,%xmm5
+ pxor %xmm4,%xmm15
+ pxor %xmm5,%xmm12
+ movdqa %xmm15,%xmm7
+ pslld $7,%xmm15
+ psrld $25,%xmm7
+ movdqa %xmm12,%xmm6
+ pslld $7,%xmm12
+ por %xmm7,%xmm15
+ psrld $25,%xmm6
+ movdqa (%r9),%xmm7
+ por %xmm6,%xmm12
+ decl %eax
+ jnz .Loop4x
+
+ paddd 64(%rsp),%xmm8
+ paddd 80(%rsp),%xmm9
+ paddd 96(%rsp),%xmm10
+ paddd 112(%rsp),%xmm11
+
+ movdqa %xmm8,%xmm6
+ punpckldq %xmm9,%xmm8
+ movdqa %xmm10,%xmm7
+ punpckldq %xmm11,%xmm10
+ punpckhdq %xmm9,%xmm6
+ punpckhdq %xmm11,%xmm7
+ movdqa %xmm8,%xmm9
+ punpcklqdq %xmm10,%xmm8
+ movdqa %xmm6,%xmm11
+ punpcklqdq %xmm7,%xmm6
+ punpckhqdq %xmm10,%xmm9
+ punpckhqdq %xmm7,%xmm11
+ paddd 128-256(%rcx),%xmm12
+ paddd 144-256(%rcx),%xmm13
+ paddd 160-256(%rcx),%xmm14
+ paddd 176-256(%rcx),%xmm15
+
+ movdqa %xmm8,0(%rsp)
+ movdqa %xmm9,16(%rsp)
+ movdqa 32(%rsp),%xmm8
+ movdqa 48(%rsp),%xmm9
+
+ movdqa %xmm12,%xmm10
+ punpckldq %xmm13,%xmm12
+ movdqa %xmm14,%xmm7
+ punpckldq %xmm15,%xmm14
+ punpckhdq %xmm13,%xmm10
+ punpckhdq %xmm15,%xmm7
+ movdqa %xmm12,%xmm13
+ punpcklqdq %xmm14,%xmm12
+ movdqa %xmm10,%xmm15
+ punpcklqdq %xmm7,%xmm10
+ punpckhqdq %xmm14,%xmm13
+ punpckhqdq %xmm7,%xmm15
+ paddd 192-256(%rcx),%xmm4
+ paddd 208-256(%rcx),%xmm5
+ paddd 224-256(%rcx),%xmm8
+ paddd 240-256(%rcx),%xmm9
+
+ movdqa %xmm6,32(%rsp)
+ movdqa %xmm11,48(%rsp)
+
+ movdqa %xmm4,%xmm14
+ punpckldq %xmm5,%xmm4
+ movdqa %xmm8,%xmm7
+ punpckldq %xmm9,%xmm8
+ punpckhdq %xmm5,%xmm14
+ punpckhdq %xmm9,%xmm7
+ movdqa %xmm4,%xmm5
+ punpcklqdq %xmm8,%xmm4
+ movdqa %xmm14,%xmm9
+ punpcklqdq %xmm7,%xmm14
+ punpckhqdq %xmm8,%xmm5
+ punpckhqdq %xmm7,%xmm9
+ paddd 256-256(%rcx),%xmm0
+ paddd 272-256(%rcx),%xmm1
+ paddd 288-256(%rcx),%xmm2
+ paddd 304-256(%rcx),%xmm3
+
+ movdqa %xmm0,%xmm8
+ punpckldq %xmm1,%xmm0
+ movdqa %xmm2,%xmm7
+ punpckldq %xmm3,%xmm2
+ punpckhdq %xmm1,%xmm8
+ punpckhdq %xmm3,%xmm7
+ movdqa %xmm0,%xmm1
+ punpcklqdq %xmm2,%xmm0
+ movdqa %xmm8,%xmm3
+ punpcklqdq %xmm7,%xmm8
+ punpckhqdq %xmm2,%xmm1
+ punpckhqdq %xmm7,%xmm3
+ cmpq $256,%rdx
+ jb .Ltail4x
+
+ movdqu 0(%rsi),%xmm6
+ movdqu 16(%rsi),%xmm11
+ movdqu 32(%rsi),%xmm2
+ movdqu 48(%rsi),%xmm7
+ pxor 0(%rsp),%xmm6
+ pxor %xmm12,%xmm11
+ pxor %xmm4,%xmm2
+ pxor %xmm0,%xmm7
+
+ movdqu %xmm6,0(%rdi)
+ movdqu 64(%rsi),%xmm6
+ movdqu %xmm11,16(%rdi)
+ movdqu 80(%rsi),%xmm11
+ movdqu %xmm2,32(%rdi)
+ movdqu 96(%rsi),%xmm2
+ movdqu %xmm7,48(%rdi)
+ movdqu 112(%rsi),%xmm7
+ leaq 128(%rsi),%rsi
+ pxor 16(%rsp),%xmm6
+ pxor %xmm13,%xmm11
+ pxor %xmm5,%xmm2
+ pxor %xmm1,%xmm7
+
+ movdqu %xmm6,64(%rdi)
+ movdqu 0(%rsi),%xmm6
+ movdqu %xmm11,80(%rdi)
+ movdqu 16(%rsi),%xmm11
+ movdqu %xmm2,96(%rdi)
+ movdqu 32(%rsi),%xmm2
+ movdqu %xmm7,112(%rdi)
+ leaq 128(%rdi),%rdi
+ movdqu 48(%rsi),%xmm7
+ pxor 32(%rsp),%xmm6
+ pxor %xmm10,%xmm11
+ pxor %xmm14,%xmm2
+ pxor %xmm8,%xmm7
+
+ movdqu %xmm6,0(%rdi)
+ movdqu 64(%rsi),%xmm6
+ movdqu %xmm11,16(%rdi)
+ movdqu 80(%rsi),%xmm11
+ movdqu %xmm2,32(%rdi)
+ movdqu 96(%rsi),%xmm2
+ movdqu %xmm7,48(%rdi)
+ movdqu 112(%rsi),%xmm7
+ leaq 128(%rsi),%rsi
+ pxor 48(%rsp),%xmm6
+ pxor %xmm15,%xmm11
+ pxor %xmm9,%xmm2
+ pxor %xmm3,%xmm7
+ movdqu %xmm6,64(%rdi)
+ movdqu %xmm11,80(%rdi)
+ movdqu %xmm2,96(%rdi)
+ movdqu %xmm7,112(%rdi)
+ leaq 128(%rdi),%rdi
+
+ subq $256,%rdx
+ jnz .Loop_outer4x
+
+ jmp .Ldone4x
+
+.Ltail4x:
+ cmpq $192,%rdx
+ jae .L192_or_more4x
+ cmpq $128,%rdx
+ jae .L128_or_more4x
+ cmpq $64,%rdx
+ jae .L64_or_more4x
+
+
+ xorq %r9,%r9
+
+ movdqa %xmm12,16(%rsp)
+ movdqa %xmm4,32(%rsp)
+ movdqa %xmm0,48(%rsp)
+ jmp .Loop_tail4x
+
+.align 32
+.L64_or_more4x:
+ movdqu 0(%rsi),%xmm6
+ movdqu 16(%rsi),%xmm11
+ movdqu 32(%rsi),%xmm2
+ movdqu 48(%rsi),%xmm7
+ pxor 0(%rsp),%xmm6
+ pxor %xmm12,%xmm11
+ pxor %xmm4,%xmm2
+ pxor %xmm0,%xmm7
+ movdqu %xmm6,0(%rdi)
+ movdqu %xmm11,16(%rdi)
+ movdqu %xmm2,32(%rdi)
+ movdqu %xmm7,48(%rdi)
+ je .Ldone4x
+
+ movdqa 16(%rsp),%xmm6
+ leaq 64(%rsi),%rsi
+ xorq %r9,%r9
+ movdqa %xmm6,0(%rsp)
+ movdqa %xmm13,16(%rsp)
+ leaq 64(%rdi),%rdi
+ movdqa %xmm5,32(%rsp)
+ subq $64,%rdx
+ movdqa %xmm1,48(%rsp)
+ jmp .Loop_tail4x
+
+.align 32
+.L128_or_more4x:
+ movdqu 0(%rsi),%xmm6
+ movdqu 16(%rsi),%xmm11
+ movdqu 32(%rsi),%xmm2
+ movdqu 48(%rsi),%xmm7
+ pxor 0(%rsp),%xmm6
+ pxor %xmm12,%xmm11
+ pxor %xmm4,%xmm2
+ pxor %xmm0,%xmm7
+
+ movdqu %xmm6,0(%rdi)
+ movdqu 64(%rsi),%xmm6
+ movdqu %xmm11,16(%rdi)
+ movdqu 80(%rsi),%xmm11
+ movdqu %xmm2,32(%rdi)
+ movdqu 96(%rsi),%xmm2
+ movdqu %xmm7,48(%rdi)
+ movdqu 112(%rsi),%xmm7
+ pxor 16(%rsp),%xmm6
+ pxor %xmm13,%xmm11
+ pxor %xmm5,%xmm2
+ pxor %xmm1,%xmm7
+ movdqu %xmm6,64(%rdi)
+ movdqu %xmm11,80(%rdi)
+ movdqu %xmm2,96(%rdi)
+ movdqu %xmm7,112(%rdi)
+ je .Ldone4x
+
+ movdqa 32(%rsp),%xmm6
+ leaq 128(%rsi),%rsi
+ xorq %r9,%r9
+ movdqa %xmm6,0(%rsp)
+ movdqa %xmm10,16(%rsp)
+ leaq 128(%rdi),%rdi
+ movdqa %xmm14,32(%rsp)
+ subq $128,%rdx
+ movdqa %xmm8,48(%rsp)
+ jmp .Loop_tail4x
+
+.align 32
+.L192_or_more4x:
+ movdqu 0(%rsi),%xmm6
+ movdqu 16(%rsi),%xmm11
+ movdqu 32(%rsi),%xmm2
+ movdqu 48(%rsi),%xmm7
+ pxor 0(%rsp),%xmm6
+ pxor %xmm12,%xmm11
+ pxor %xmm4,%xmm2
+ pxor %xmm0,%xmm7
+
+ movdqu %xmm6,0(%rdi)
+ movdqu 64(%rsi),%xmm6
+ movdqu %xmm11,16(%rdi)
+ movdqu 80(%rsi),%xmm11
+ movdqu %xmm2,32(%rdi)
+ movdqu 96(%rsi),%xmm2
+ movdqu %xmm7,48(%rdi)
+ movdqu 112(%rsi),%xmm7
+ leaq 128(%rsi),%rsi
+ pxor 16(%rsp),%xmm6
+ pxor %xmm13,%xmm11
+ pxor %xmm5,%xmm2
+ pxor %xmm1,%xmm7
+
+ movdqu %xmm6,64(%rdi)
+ movdqu 0(%rsi),%xmm6
+ movdqu %xmm11,80(%rdi)
+ movdqu 16(%rsi),%xmm11
+ movdqu %xmm2,96(%rdi)
+ movdqu 32(%rsi),%xmm2
+ movdqu %xmm7,112(%rdi)
+ leaq 128(%rdi),%rdi
+ movdqu 48(%rsi),%xmm7
+ pxor 32(%rsp),%xmm6
+ pxor %xmm10,%xmm11
+ pxor %xmm14,%xmm2
+ pxor %xmm8,%xmm7
+ movdqu %xmm6,0(%rdi)
+ movdqu %xmm11,16(%rdi)
+ movdqu %xmm2,32(%rdi)
+ movdqu %xmm7,48(%rdi)
+ je .Ldone4x
+
+ movdqa 48(%rsp),%xmm6
+ leaq 64(%rsi),%rsi
+ xorq %r9,%r9
+ movdqa %xmm6,0(%rsp)
+ movdqa %xmm15,16(%rsp)
+ leaq 64(%rdi),%rdi
+ movdqa %xmm9,32(%rsp)
+ subq $192,%rdx
+ movdqa %xmm3,48(%rsp)
+
+.Loop_tail4x:
+ movzbl (%rsi,%r9,1),%eax
+ movzbl (%rsp,%r9,1),%ecx
+ leaq 1(%r9),%r9
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r9,1)
+ decq %rdx
+ jnz .Loop_tail4x
+
+.Ldone4x:
+ leaq -8(%r10),%rsp
+
+.L4x_epilogue:
+ ret
+ENDPROC(chacha20_ssse3)
+#endif /* CONFIG_AS_SSSE3 */
+
+#ifdef CONFIG_AS_AVX2
+.align 32
+ENTRY(chacha20_avx2)
+.Lchacha20_avx2:
+ cmpq $0,%rdx
+ je .L8x_epilogue
+ leaq 8(%rsp),%r10
+
+ subq $0x280+8,%rsp
+ andq $-32,%rsp
+ vzeroupper
+
+ vbroadcasti128 .Lsigma(%rip),%ymm11
+ vbroadcasti128 (%rcx),%ymm3
+ vbroadcasti128 16(%rcx),%ymm15
+ vbroadcasti128 (%r8),%ymm7
+ leaq 256(%rsp),%rcx
+ leaq 512(%rsp),%rax
+ leaq .Lrot16(%rip),%r9
+ leaq .Lrot24(%rip),%r11
+
+ vpshufd $0x00,%ymm11,%ymm8
+ vpshufd $0x55,%ymm11,%ymm9
+ vmovdqa %ymm8,128-256(%rcx)
+ vpshufd $0xaa,%ymm11,%ymm10
+ vmovdqa %ymm9,160-256(%rcx)
+ vpshufd $0xff,%ymm11,%ymm11
+ vmovdqa %ymm10,192-256(%rcx)
+ vmovdqa %ymm11,224-256(%rcx)
+
+ vpshufd $0x00,%ymm3,%ymm0
+ vpshufd $0x55,%ymm3,%ymm1
+ vmovdqa %ymm0,256-256(%rcx)
+ vpshufd $0xaa,%ymm3,%ymm2
+ vmovdqa %ymm1,288-256(%rcx)
+ vpshufd $0xff,%ymm3,%ymm3
+ vmovdqa %ymm2,320-256(%rcx)
+ vmovdqa %ymm3,352-256(%rcx)
+
+ vpshufd $0x00,%ymm15,%ymm12
+ vpshufd $0x55,%ymm15,%ymm13
+ vmovdqa %ymm12,384-512(%rax)
+ vpshufd $0xaa,%ymm15,%ymm14
+ vmovdqa %ymm13,416-512(%rax)
+ vpshufd $0xff,%ymm15,%ymm15
+ vmovdqa %ymm14,448-512(%rax)
+ vmovdqa %ymm15,480-512(%rax)
+
+ vpshufd $0x00,%ymm7,%ymm4
+ vpshufd $0x55,%ymm7,%ymm5
+ vpaddd .Lincy(%rip),%ymm4,%ymm4
+ vpshufd $0xaa,%ymm7,%ymm6
+ vmovdqa %ymm5,544-512(%rax)
+ vpshufd $0xff,%ymm7,%ymm7
+ vmovdqa %ymm6,576-512(%rax)
+ vmovdqa %ymm7,608-512(%rax)
+
+ jmp .Loop_enter8x
+
+.align 32
+.Loop_outer8x:
+ vmovdqa 128-256(%rcx),%ymm8
+ vmovdqa 160-256(%rcx),%ymm9
+ vmovdqa 192-256(%rcx),%ymm10
+ vmovdqa 224-256(%rcx),%ymm11
+ vmovdqa 256-256(%rcx),%ymm0
+ vmovdqa 288-256(%rcx),%ymm1
+ vmovdqa 320-256(%rcx),%ymm2
+ vmovdqa 352-256(%rcx),%ymm3
+ vmovdqa 384-512(%rax),%ymm12
+ vmovdqa 416-512(%rax),%ymm13
+ vmovdqa 448-512(%rax),%ymm14
+ vmovdqa 480-512(%rax),%ymm15
+ vmovdqa 512-512(%rax),%ymm4
+ vmovdqa 544-512(%rax),%ymm5
+ vmovdqa 576-512(%rax),%ymm6
+ vmovdqa 608-512(%rax),%ymm7
+ vpaddd .Leight(%rip),%ymm4,%ymm4
+
+.Loop_enter8x:
+ vmovdqa %ymm14,64(%rsp)
+ vmovdqa %ymm15,96(%rsp)
+ vbroadcasti128 (%r9),%ymm15
+ vmovdqa %ymm4,512-512(%rax)
+ movl $10,%eax
+ jmp .Loop8x
+
+.align 32
+.Loop8x:
+ vpaddd %ymm0,%ymm8,%ymm8
+ vpxor %ymm4,%ymm8,%ymm4
+ vpshufb %ymm15,%ymm4,%ymm4
+ vpaddd %ymm1,%ymm9,%ymm9
+ vpxor %ymm5,%ymm9,%ymm5
+ vpshufb %ymm15,%ymm5,%ymm5
+ vpaddd %ymm4,%ymm12,%ymm12
+ vpxor %ymm0,%ymm12,%ymm0
+ vpslld $12,%ymm0,%ymm14
+ vpsrld $20,%ymm0,%ymm0
+ vpor %ymm0,%ymm14,%ymm0
+ vbroadcasti128 (%r11),%ymm14
+ vpaddd %ymm5,%ymm13,%ymm13
+ vpxor %ymm1,%ymm13,%ymm1
+ vpslld $12,%ymm1,%ymm15
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm1,%ymm15,%ymm1
+ vpaddd %ymm0,%ymm8,%ymm8
+ vpxor %ymm4,%ymm8,%ymm4
+ vpshufb %ymm14,%ymm4,%ymm4
+ vpaddd %ymm1,%ymm9,%ymm9
+ vpxor %ymm5,%ymm9,%ymm5
+ vpshufb %ymm14,%ymm5,%ymm5
+ vpaddd %ymm4,%ymm12,%ymm12
+ vpxor %ymm0,%ymm12,%ymm0
+ vpslld $7,%ymm0,%ymm15
+ vpsrld $25,%ymm0,%ymm0
+ vpor %ymm0,%ymm15,%ymm0
+ vbroadcasti128 (%r9),%ymm15
+ vpaddd %ymm5,%ymm13,%ymm13
+ vpxor %ymm1,%ymm13,%ymm1
+ vpslld $7,%ymm1,%ymm14
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm1,%ymm14,%ymm1
+ vmovdqa %ymm12,0(%rsp)
+ vmovdqa %ymm13,32(%rsp)
+ vmovdqa 64(%rsp),%ymm12
+ vmovdqa 96(%rsp),%ymm13
+ vpaddd %ymm2,%ymm10,%ymm10
+ vpxor %ymm6,%ymm10,%ymm6
+ vpshufb %ymm15,%ymm6,%ymm6
+ vpaddd %ymm3,%ymm11,%ymm11
+ vpxor %ymm7,%ymm11,%ymm7
+ vpshufb %ymm15,%ymm7,%ymm7
+ vpaddd %ymm6,%ymm12,%ymm12
+ vpxor %ymm2,%ymm12,%ymm2
+ vpslld $12,%ymm2,%ymm14
+ vpsrld $20,%ymm2,%ymm2
+ vpor %ymm2,%ymm14,%ymm2
+ vbroadcasti128 (%r11),%ymm14
+ vpaddd %ymm7,%ymm13,%ymm13
+ vpxor %ymm3,%ymm13,%ymm3
+ vpslld $12,%ymm3,%ymm15
+ vpsrld $20,%ymm3,%ymm3
+ vpor %ymm3,%ymm15,%ymm3
+ vpaddd %ymm2,%ymm10,%ymm10
+ vpxor %ymm6,%ymm10,%ymm6
+ vpshufb %ymm14,%ymm6,%ymm6
+ vpaddd %ymm3,%ymm11,%ymm11
+ vpxor %ymm7,%ymm11,%ymm7
+ vpshufb %ymm14,%ymm7,%ymm7
+ vpaddd %ymm6,%ymm12,%ymm12
+ vpxor %ymm2,%ymm12,%ymm2
+ vpslld $7,%ymm2,%ymm15
+ vpsrld $25,%ymm2,%ymm2
+ vpor %ymm2,%ymm15,%ymm2
+ vbroadcasti128 (%r9),%ymm15
+ vpaddd %ymm7,%ymm13,%ymm13
+ vpxor %ymm3,%ymm13,%ymm3
+ vpslld $7,%ymm3,%ymm14
+ vpsrld $25,%ymm3,%ymm3
+ vpor %ymm3,%ymm14,%ymm3
+ vpaddd %ymm1,%ymm8,%ymm8
+ vpxor %ymm7,%ymm8,%ymm7
+ vpshufb %ymm15,%ymm7,%ymm7
+ vpaddd %ymm2,%ymm9,%ymm9
+ vpxor %ymm4,%ymm9,%ymm4
+ vpshufb %ymm15,%ymm4,%ymm4
+ vpaddd %ymm7,%ymm12,%ymm12
+ vpxor %ymm1,%ymm12,%ymm1
+ vpslld $12,%ymm1,%ymm14
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm1,%ymm14,%ymm1
+ vbroadcasti128 (%r11),%ymm14
+ vpaddd %ymm4,%ymm13,%ymm13
+ vpxor %ymm2,%ymm13,%ymm2
+ vpslld $12,%ymm2,%ymm15
+ vpsrld $20,%ymm2,%ymm2
+ vpor %ymm2,%ymm15,%ymm2
+ vpaddd %ymm1,%ymm8,%ymm8
+ vpxor %ymm7,%ymm8,%ymm7
+ vpshufb %ymm14,%ymm7,%ymm7
+ vpaddd %ymm2,%ymm9,%ymm9
+ vpxor %ymm4,%ymm9,%ymm4
+ vpshufb %ymm14,%ymm4,%ymm4
+ vpaddd %ymm7,%ymm12,%ymm12
+ vpxor %ymm1,%ymm12,%ymm1
+ vpslld $7,%ymm1,%ymm15
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm1,%ymm15,%ymm1
+ vbroadcasti128 (%r9),%ymm15
+ vpaddd %ymm4,%ymm13,%ymm13
+ vpxor %ymm2,%ymm13,%ymm2
+ vpslld $7,%ymm2,%ymm14
+ vpsrld $25,%ymm2,%ymm2
+ vpor %ymm2,%ymm14,%ymm2
+ vmovdqa %ymm12,64(%rsp)
+ vmovdqa %ymm13,96(%rsp)
+ vmovdqa 0(%rsp),%ymm12
+ vmovdqa 32(%rsp),%ymm13
+ vpaddd %ymm3,%ymm10,%ymm10
+ vpxor %ymm5,%ymm10,%ymm5
+ vpshufb %ymm15,%ymm5,%ymm5
+ vpaddd %ymm0,%ymm11,%ymm11
+ vpxor %ymm6,%ymm11,%ymm6
+ vpshufb %ymm15,%ymm6,%ymm6
+ vpaddd %ymm5,%ymm12,%ymm12
+ vpxor %ymm3,%ymm12,%ymm3
+ vpslld $12,%ymm3,%ymm14
+ vpsrld $20,%ymm3,%ymm3
+ vpor %ymm3,%ymm14,%ymm3
+ vbroadcasti128 (%r11),%ymm14
+ vpaddd %ymm6,%ymm13,%ymm13
+ vpxor %ymm0,%ymm13,%ymm0
+ vpslld $12,%ymm0,%ymm15
+ vpsrld $20,%ymm0,%ymm0
+ vpor %ymm0,%ymm15,%ymm0
+ vpaddd %ymm3,%ymm10,%ymm10
+ vpxor %ymm5,%ymm10,%ymm5
+ vpshufb %ymm14,%ymm5,%ymm5
+ vpaddd %ymm0,%ymm11,%ymm11
+ vpxor %ymm6,%ymm11,%ymm6
+ vpshufb %ymm14,%ymm6,%ymm6
+ vpaddd %ymm5,%ymm12,%ymm12
+ vpxor %ymm3,%ymm12,%ymm3
+ vpslld $7,%ymm3,%ymm15
+ vpsrld $25,%ymm3,%ymm3
+ vpor %ymm3,%ymm15,%ymm3
+ vbroadcasti128 (%r9),%ymm15
+ vpaddd %ymm6,%ymm13,%ymm13
+ vpxor %ymm0,%ymm13,%ymm0
+ vpslld $7,%ymm0,%ymm14
+ vpsrld $25,%ymm0,%ymm0
+ vpor %ymm0,%ymm14,%ymm0
+ decl %eax
+ jnz .Loop8x
+
+ leaq 512(%rsp),%rax
+ vpaddd 128-256(%rcx),%ymm8,%ymm8
+ vpaddd 160-256(%rcx),%ymm9,%ymm9
+ vpaddd 192-256(%rcx),%ymm10,%ymm10
+ vpaddd 224-256(%rcx),%ymm11,%ymm11
+
+ vpunpckldq %ymm9,%ymm8,%ymm14
+ vpunpckldq %ymm11,%ymm10,%ymm15
+ vpunpckhdq %ymm9,%ymm8,%ymm8
+ vpunpckhdq %ymm11,%ymm10,%ymm10
+ vpunpcklqdq %ymm15,%ymm14,%ymm9
+ vpunpckhqdq %ymm15,%ymm14,%ymm14
+ vpunpcklqdq %ymm10,%ymm8,%ymm11
+ vpunpckhqdq %ymm10,%ymm8,%ymm8
+ vpaddd 256-256(%rcx),%ymm0,%ymm0
+ vpaddd 288-256(%rcx),%ymm1,%ymm1
+ vpaddd 320-256(%rcx),%ymm2,%ymm2
+ vpaddd 352-256(%rcx),%ymm3,%ymm3
+
+ vpunpckldq %ymm1,%ymm0,%ymm10
+ vpunpckldq %ymm3,%ymm2,%ymm15
+ vpunpckhdq %ymm1,%ymm0,%ymm0
+ vpunpckhdq %ymm3,%ymm2,%ymm2
+ vpunpcklqdq %ymm15,%ymm10,%ymm1
+ vpunpckhqdq %ymm15,%ymm10,%ymm10
+ vpunpcklqdq %ymm2,%ymm0,%ymm3
+ vpunpckhqdq %ymm2,%ymm0,%ymm0
+ vperm2i128 $0x20,%ymm1,%ymm9,%ymm15
+ vperm2i128 $0x31,%ymm1,%ymm9,%ymm1
+ vperm2i128 $0x20,%ymm10,%ymm14,%ymm9
+ vperm2i128 $0x31,%ymm10,%ymm14,%ymm10
+ vperm2i128 $0x20,%ymm3,%ymm11,%ymm14
+ vperm2i128 $0x31,%ymm3,%ymm11,%ymm3
+ vperm2i128 $0x20,%ymm0,%ymm8,%ymm11
+ vperm2i128 $0x31,%ymm0,%ymm8,%ymm0
+ vmovdqa %ymm15,0(%rsp)
+ vmovdqa %ymm9,32(%rsp)
+ vmovdqa 64(%rsp),%ymm15
+ vmovdqa 96(%rsp),%ymm9
+
+ vpaddd 384-512(%rax),%ymm12,%ymm12
+ vpaddd 416-512(%rax),%ymm13,%ymm13
+ vpaddd 448-512(%rax),%ymm15,%ymm15
+ vpaddd 480-512(%rax),%ymm9,%ymm9
+
+ vpunpckldq %ymm13,%ymm12,%ymm2
+ vpunpckldq %ymm9,%ymm15,%ymm8
+ vpunpckhdq %ymm13,%ymm12,%ymm12
+ vpunpckhdq %ymm9,%ymm15,%ymm15
+ vpunpcklqdq %ymm8,%ymm2,%ymm13
+ vpunpckhqdq %ymm8,%ymm2,%ymm2
+ vpunpcklqdq %ymm15,%ymm12,%ymm9
+ vpunpckhqdq %ymm15,%ymm12,%ymm12
+ vpaddd 512-512(%rax),%ymm4,%ymm4
+ vpaddd 544-512(%rax),%ymm5,%ymm5
+ vpaddd 576-512(%rax),%ymm6,%ymm6
+ vpaddd 608-512(%rax),%ymm7,%ymm7
+
+ vpunpckldq %ymm5,%ymm4,%ymm15
+ vpunpckldq %ymm7,%ymm6,%ymm8
+ vpunpckhdq %ymm5,%ymm4,%ymm4
+ vpunpckhdq %ymm7,%ymm6,%ymm6
+ vpunpcklqdq %ymm8,%ymm15,%ymm5
+ vpunpckhqdq %ymm8,%ymm15,%ymm15
+ vpunpcklqdq %ymm6,%ymm4,%ymm7
+ vpunpckhqdq %ymm6,%ymm4,%ymm4
+ vperm2i128 $0x20,%ymm5,%ymm13,%ymm8
+ vperm2i128 $0x31,%ymm5,%ymm13,%ymm5
+ vperm2i128 $0x20,%ymm15,%ymm2,%ymm13
+ vperm2i128 $0x31,%ymm15,%ymm2,%ymm15
+ vperm2i128 $0x20,%ymm7,%ymm9,%ymm2
+ vperm2i128 $0x31,%ymm7,%ymm9,%ymm7
+ vperm2i128 $0x20,%ymm4,%ymm12,%ymm9
+ vperm2i128 $0x31,%ymm4,%ymm12,%ymm4
+ vmovdqa 0(%rsp),%ymm6
+ vmovdqa 32(%rsp),%ymm12
+
+ cmpq $512,%rdx
+ jb .Ltail8x
+
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ leaq 128(%rsi),%rsi
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ leaq 128(%rdi),%rdi
+
+ vpxor 0(%rsi),%ymm12,%ymm12
+ vpxor 32(%rsi),%ymm13,%ymm13
+ vpxor 64(%rsi),%ymm10,%ymm10
+ vpxor 96(%rsi),%ymm15,%ymm15
+ leaq 128(%rsi),%rsi
+ vmovdqu %ymm12,0(%rdi)
+ vmovdqu %ymm13,32(%rdi)
+ vmovdqu %ymm10,64(%rdi)
+ vmovdqu %ymm15,96(%rdi)
+ leaq 128(%rdi),%rdi
+
+ vpxor 0(%rsi),%ymm14,%ymm14
+ vpxor 32(%rsi),%ymm2,%ymm2
+ vpxor 64(%rsi),%ymm3,%ymm3
+ vpxor 96(%rsi),%ymm7,%ymm7
+ leaq 128(%rsi),%rsi
+ vmovdqu %ymm14,0(%rdi)
+ vmovdqu %ymm2,32(%rdi)
+ vmovdqu %ymm3,64(%rdi)
+ vmovdqu %ymm7,96(%rdi)
+ leaq 128(%rdi),%rdi
+
+ vpxor 0(%rsi),%ymm11,%ymm11
+ vpxor 32(%rsi),%ymm9,%ymm9
+ vpxor 64(%rsi),%ymm0,%ymm0
+ vpxor 96(%rsi),%ymm4,%ymm4
+ leaq 128(%rsi),%rsi
+ vmovdqu %ymm11,0(%rdi)
+ vmovdqu %ymm9,32(%rdi)
+ vmovdqu %ymm0,64(%rdi)
+ vmovdqu %ymm4,96(%rdi)
+ leaq 128(%rdi),%rdi
+
+ subq $512,%rdx
+ jnz .Loop_outer8x
+
+ jmp .Ldone8x
+
+.Ltail8x:
+ cmpq $448,%rdx
+ jae .L448_or_more8x
+ cmpq $384,%rdx
+ jae .L384_or_more8x
+ cmpq $320,%rdx
+ jae .L320_or_more8x
+ cmpq $256,%rdx
+ jae .L256_or_more8x
+ cmpq $192,%rdx
+ jae .L192_or_more8x
+ cmpq $128,%rdx
+ jae .L128_or_more8x
+ cmpq $64,%rdx
+ jae .L64_or_more8x
+
+ xorq %r9,%r9
+ vmovdqa %ymm6,0(%rsp)
+ vmovdqa %ymm8,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L64_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ je .Ldone8x
+
+ leaq 64(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm1,0(%rsp)
+ leaq 64(%rdi),%rdi
+ subq $64,%rdx
+ vmovdqa %ymm5,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L128_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ je .Ldone8x
+
+ leaq 128(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm12,0(%rsp)
+ leaq 128(%rdi),%rdi
+ subq $128,%rdx
+ vmovdqa %ymm13,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L192_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ vpxor 128(%rsi),%ymm12,%ymm12
+ vpxor 160(%rsi),%ymm13,%ymm13
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ vmovdqu %ymm12,128(%rdi)
+ vmovdqu %ymm13,160(%rdi)
+ je .Ldone8x
+
+ leaq 192(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm10,0(%rsp)
+ leaq 192(%rdi),%rdi
+ subq $192,%rdx
+ vmovdqa %ymm15,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L256_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ vpxor 128(%rsi),%ymm12,%ymm12
+ vpxor 160(%rsi),%ymm13,%ymm13
+ vpxor 192(%rsi),%ymm10,%ymm10
+ vpxor 224(%rsi),%ymm15,%ymm15
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ vmovdqu %ymm12,128(%rdi)
+ vmovdqu %ymm13,160(%rdi)
+ vmovdqu %ymm10,192(%rdi)
+ vmovdqu %ymm15,224(%rdi)
+ je .Ldone8x
+
+ leaq 256(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm14,0(%rsp)
+ leaq 256(%rdi),%rdi
+ subq $256,%rdx
+ vmovdqa %ymm2,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L320_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ vpxor 128(%rsi),%ymm12,%ymm12
+ vpxor 160(%rsi),%ymm13,%ymm13
+ vpxor 192(%rsi),%ymm10,%ymm10
+ vpxor 224(%rsi),%ymm15,%ymm15
+ vpxor 256(%rsi),%ymm14,%ymm14
+ vpxor 288(%rsi),%ymm2,%ymm2
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ vmovdqu %ymm12,128(%rdi)
+ vmovdqu %ymm13,160(%rdi)
+ vmovdqu %ymm10,192(%rdi)
+ vmovdqu %ymm15,224(%rdi)
+ vmovdqu %ymm14,256(%rdi)
+ vmovdqu %ymm2,288(%rdi)
+ je .Ldone8x
+
+ leaq 320(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm3,0(%rsp)
+ leaq 320(%rdi),%rdi
+ subq $320,%rdx
+ vmovdqa %ymm7,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L384_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ vpxor 128(%rsi),%ymm12,%ymm12
+ vpxor 160(%rsi),%ymm13,%ymm13
+ vpxor 192(%rsi),%ymm10,%ymm10
+ vpxor 224(%rsi),%ymm15,%ymm15
+ vpxor 256(%rsi),%ymm14,%ymm14
+ vpxor 288(%rsi),%ymm2,%ymm2
+ vpxor 320(%rsi),%ymm3,%ymm3
+ vpxor 352(%rsi),%ymm7,%ymm7
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ vmovdqu %ymm12,128(%rdi)
+ vmovdqu %ymm13,160(%rdi)
+ vmovdqu %ymm10,192(%rdi)
+ vmovdqu %ymm15,224(%rdi)
+ vmovdqu %ymm14,256(%rdi)
+ vmovdqu %ymm2,288(%rdi)
+ vmovdqu %ymm3,320(%rdi)
+ vmovdqu %ymm7,352(%rdi)
+ je .Ldone8x
+
+ leaq 384(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm11,0(%rsp)
+ leaq 384(%rdi),%rdi
+ subq $384,%rdx
+ vmovdqa %ymm9,32(%rsp)
+ jmp .Loop_tail8x
+
+.align 32
+.L448_or_more8x:
+ vpxor 0(%rsi),%ymm6,%ymm6
+ vpxor 32(%rsi),%ymm8,%ymm8
+ vpxor 64(%rsi),%ymm1,%ymm1
+ vpxor 96(%rsi),%ymm5,%ymm5
+ vpxor 128(%rsi),%ymm12,%ymm12
+ vpxor 160(%rsi),%ymm13,%ymm13
+ vpxor 192(%rsi),%ymm10,%ymm10
+ vpxor 224(%rsi),%ymm15,%ymm15
+ vpxor 256(%rsi),%ymm14,%ymm14
+ vpxor 288(%rsi),%ymm2,%ymm2
+ vpxor 320(%rsi),%ymm3,%ymm3
+ vpxor 352(%rsi),%ymm7,%ymm7
+ vpxor 384(%rsi),%ymm11,%ymm11
+ vpxor 416(%rsi),%ymm9,%ymm9
+ vmovdqu %ymm6,0(%rdi)
+ vmovdqu %ymm8,32(%rdi)
+ vmovdqu %ymm1,64(%rdi)
+ vmovdqu %ymm5,96(%rdi)
+ vmovdqu %ymm12,128(%rdi)
+ vmovdqu %ymm13,160(%rdi)
+ vmovdqu %ymm10,192(%rdi)
+ vmovdqu %ymm15,224(%rdi)
+ vmovdqu %ymm14,256(%rdi)
+ vmovdqu %ymm2,288(%rdi)
+ vmovdqu %ymm3,320(%rdi)
+ vmovdqu %ymm7,352(%rdi)
+ vmovdqu %ymm11,384(%rdi)
+ vmovdqu %ymm9,416(%rdi)
+ je .Ldone8x
+
+ leaq 448(%rsi),%rsi
+ xorq %r9,%r9
+ vmovdqa %ymm0,0(%rsp)
+ leaq 448(%rdi),%rdi
+ subq $448,%rdx
+ vmovdqa %ymm4,32(%rsp)
+
+.Loop_tail8x:
+ movzbl (%rsi,%r9,1),%eax
+ movzbl (%rsp,%r9,1),%ecx
+ leaq 1(%r9),%r9
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r9,1)
+ decq %rdx
+ jnz .Loop_tail8x
+
+.Ldone8x:
+ vzeroall
+ leaq -8(%r10),%rsp
+
+.L8x_epilogue:
+ ret
+ENDPROC(chacha20_avx2)
+#endif /* CONFIG_AS_AVX2 */
+
+#ifdef CONFIG_AS_AVX512
+.align 32
+ENTRY(chacha20_avx512)
+.Lchacha20_avx512:
+ cmpq $0,%rdx
+ je .Lavx512_epilogue
+ leaq 8(%rsp),%r10
+
+ cmpq $512,%rdx
+ ja .Lchacha20_16x
+
+ subq $64+8,%rsp
+ andq $-64,%rsp
+ vbroadcasti32x4 .Lsigma(%rip),%zmm0
+ vbroadcasti32x4 (%rcx),%zmm1
+ vbroadcasti32x4 16(%rcx),%zmm2
+ vbroadcasti32x4 (%r8),%zmm3
+
+ vmovdqa32 %zmm0,%zmm16
+ vmovdqa32 %zmm1,%zmm17
+ vmovdqa32 %zmm2,%zmm18
+ vpaddd .Lzeroz(%rip),%zmm3,%zmm3
+ vmovdqa32 .Lfourz(%rip),%zmm20
+ movq $10,%r8
+ vmovdqa32 %zmm3,%zmm19
+ jmp .Loop_avx512
+
+.align 16
+.Loop_outer_avx512:
+ vmovdqa32 %zmm16,%zmm0
+ vmovdqa32 %zmm17,%zmm1
+ vmovdqa32 %zmm18,%zmm2
+ vpaddd %zmm20,%zmm19,%zmm3
+ movq $10,%r8
+ vmovdqa32 %zmm3,%zmm19
+ jmp .Loop_avx512
+
+.align 32
+.Loop_avx512:
+ vpaddd %zmm1,%zmm0,%zmm0
+ vpxord %zmm0,%zmm3,%zmm3
+ vprold $16,%zmm3,%zmm3
+ vpaddd %zmm3,%zmm2,%zmm2
+ vpxord %zmm2,%zmm1,%zmm1
+ vprold $12,%zmm1,%zmm1
+ vpaddd %zmm1,%zmm0,%zmm0
+ vpxord %zmm0,%zmm3,%zmm3
+ vprold $8,%zmm3,%zmm3
+ vpaddd %zmm3,%zmm2,%zmm2
+ vpxord %zmm2,%zmm1,%zmm1
+ vprold $7,%zmm1,%zmm1
+ vpshufd $78,%zmm2,%zmm2
+ vpshufd $57,%zmm1,%zmm1
+ vpshufd $147,%zmm3,%zmm3
+ vpaddd %zmm1,%zmm0,%zmm0
+ vpxord %zmm0,%zmm3,%zmm3
+ vprold $16,%zmm3,%zmm3
+ vpaddd %zmm3,%zmm2,%zmm2
+ vpxord %zmm2,%zmm1,%zmm1
+ vprold $12,%zmm1,%zmm1
+ vpaddd %zmm1,%zmm0,%zmm0
+ vpxord %zmm0,%zmm3,%zmm3
+ vprold $8,%zmm3,%zmm3
+ vpaddd %zmm3,%zmm2,%zmm2
+ vpxord %zmm2,%zmm1,%zmm1
+ vprold $7,%zmm1,%zmm1
+ vpshufd $78,%zmm2,%zmm2
+ vpshufd $147,%zmm1,%zmm1
+ vpshufd $57,%zmm3,%zmm3
+ decq %r8
+ jnz .Loop_avx512
+ vpaddd %zmm16,%zmm0,%zmm0
+ vpaddd %zmm17,%zmm1,%zmm1
+ vpaddd %zmm18,%zmm2,%zmm2
+ vpaddd %zmm19,%zmm3,%zmm3
+
+ subq $64,%rdx
+ jb .Ltail64_avx512
+
+ vpxor 0(%rsi),%xmm0,%xmm4
+ vpxor 16(%rsi),%xmm1,%xmm5
+ vpxor 32(%rsi),%xmm2,%xmm6
+ vpxor 48(%rsi),%xmm3,%xmm7
+ leaq 64(%rsi),%rsi
+
+ vmovdqu %xmm4,0(%rdi)
+ vmovdqu %xmm5,16(%rdi)
+ vmovdqu %xmm6,32(%rdi)
+ vmovdqu %xmm7,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ jz .Ldone_avx512
+
+ vextracti32x4 $1,%zmm0,%xmm4
+ vextracti32x4 $1,%zmm1,%xmm5
+ vextracti32x4 $1,%zmm2,%xmm6
+ vextracti32x4 $1,%zmm3,%xmm7
+
+ subq $64,%rdx
+ jb .Ltail_avx512
+
+ vpxor 0(%rsi),%xmm4,%xmm4
+ vpxor 16(%rsi),%xmm5,%xmm5
+ vpxor 32(%rsi),%xmm6,%xmm6
+ vpxor 48(%rsi),%xmm7,%xmm7
+ leaq 64(%rsi),%rsi
+
+ vmovdqu %xmm4,0(%rdi)
+ vmovdqu %xmm5,16(%rdi)
+ vmovdqu %xmm6,32(%rdi)
+ vmovdqu %xmm7,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ jz .Ldone_avx512
+
+ vextracti32x4 $2,%zmm0,%xmm4
+ vextracti32x4 $2,%zmm1,%xmm5
+ vextracti32x4 $2,%zmm2,%xmm6
+ vextracti32x4 $2,%zmm3,%xmm7
+
+ subq $64,%rdx
+ jb .Ltail_avx512
+
+ vpxor 0(%rsi),%xmm4,%xmm4
+ vpxor 16(%rsi),%xmm5,%xmm5
+ vpxor 32(%rsi),%xmm6,%xmm6
+ vpxor 48(%rsi),%xmm7,%xmm7
+ leaq 64(%rsi),%rsi
+
+ vmovdqu %xmm4,0(%rdi)
+ vmovdqu %xmm5,16(%rdi)
+ vmovdqu %xmm6,32(%rdi)
+ vmovdqu %xmm7,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ jz .Ldone_avx512
+
+ vextracti32x4 $3,%zmm0,%xmm4
+ vextracti32x4 $3,%zmm1,%xmm5
+ vextracti32x4 $3,%zmm2,%xmm6
+ vextracti32x4 $3,%zmm3,%xmm7
+
+ subq $64,%rdx
+ jb .Ltail_avx512
+
+ vpxor 0(%rsi),%xmm4,%xmm4
+ vpxor 16(%rsi),%xmm5,%xmm5
+ vpxor 32(%rsi),%xmm6,%xmm6
+ vpxor 48(%rsi),%xmm7,%xmm7
+ leaq 64(%rsi),%rsi
+
+ vmovdqu %xmm4,0(%rdi)
+ vmovdqu %xmm5,16(%rdi)
+ vmovdqu %xmm6,32(%rdi)
+ vmovdqu %xmm7,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ jnz .Loop_outer_avx512
+
+ jmp .Ldone_avx512
+
+.align 16
+.Ltail64_avx512:
+ vmovdqa %xmm0,0(%rsp)
+ vmovdqa %xmm1,16(%rsp)
+ vmovdqa %xmm2,32(%rsp)
+ vmovdqa %xmm3,48(%rsp)
+ addq $64,%rdx
+ jmp .Loop_tail_avx512
+
+.align 16
+.Ltail_avx512:
+ vmovdqa %xmm4,0(%rsp)
+ vmovdqa %xmm5,16(%rsp)
+ vmovdqa %xmm6,32(%rsp)
+ vmovdqa %xmm7,48(%rsp)
+ addq $64,%rdx
+
+.Loop_tail_avx512:
+ movzbl (%rsi,%r8,1),%eax
+ movzbl (%rsp,%r8,1),%ecx
+ leaq 1(%r8),%r8
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r8,1)
+ decq %rdx
+ jnz .Loop_tail_avx512
+
+ vmovdqa32 %zmm16,0(%rsp)
+
+.Ldone_avx512:
+ vzeroall
+ leaq -8(%r10),%rsp
+
+.Lavx512_epilogue:
+ ret
+
+.align 32
+.Lchacha20_16x:
+ leaq 8(%rsp),%r10
+
+ subq $64+8,%rsp
+ andq $-64,%rsp
+ vzeroupper
+
+ leaq .Lsigma(%rip),%r9
+ vbroadcasti32x4 (%r9),%zmm3
+ vbroadcasti32x4 (%rcx),%zmm7
+ vbroadcasti32x4 16(%rcx),%zmm11
+ vbroadcasti32x4 (%r8),%zmm15
+
+ vpshufd $0x00,%zmm3,%zmm0
+ vpshufd $0x55,%zmm3,%zmm1
+ vpshufd $0xaa,%zmm3,%zmm2
+ vpshufd $0xff,%zmm3,%zmm3
+ vmovdqa64 %zmm0,%zmm16
+ vmovdqa64 %zmm1,%zmm17
+ vmovdqa64 %zmm2,%zmm18
+ vmovdqa64 %zmm3,%zmm19
+
+ vpshufd $0x00,%zmm7,%zmm4
+ vpshufd $0x55,%zmm7,%zmm5
+ vpshufd $0xaa,%zmm7,%zmm6
+ vpshufd $0xff,%zmm7,%zmm7
+ vmovdqa64 %zmm4,%zmm20
+ vmovdqa64 %zmm5,%zmm21
+ vmovdqa64 %zmm6,%zmm22
+ vmovdqa64 %zmm7,%zmm23
+
+ vpshufd $0x00,%zmm11,%zmm8
+ vpshufd $0x55,%zmm11,%zmm9
+ vpshufd $0xaa,%zmm11,%zmm10
+ vpshufd $0xff,%zmm11,%zmm11
+ vmovdqa64 %zmm8,%zmm24
+ vmovdqa64 %zmm9,%zmm25
+ vmovdqa64 %zmm10,%zmm26
+ vmovdqa64 %zmm11,%zmm27
+
+ vpshufd $0x00,%zmm15,%zmm12
+ vpshufd $0x55,%zmm15,%zmm13
+ vpshufd $0xaa,%zmm15,%zmm14
+ vpshufd $0xff,%zmm15,%zmm15
+ vpaddd .Lincz(%rip),%zmm12,%zmm12
+ vmovdqa64 %zmm12,%zmm28
+ vmovdqa64 %zmm13,%zmm29
+ vmovdqa64 %zmm14,%zmm30
+ vmovdqa64 %zmm15,%zmm31
+
+ movl $10,%eax
+ jmp .Loop16x
+
+.align 32
+.Loop_outer16x:
+ vpbroadcastd 0(%r9),%zmm0
+ vpbroadcastd 4(%r9),%zmm1
+ vpbroadcastd 8(%r9),%zmm2
+ vpbroadcastd 12(%r9),%zmm3
+ vpaddd .Lsixteen(%rip),%zmm28,%zmm28
+ vmovdqa64 %zmm20,%zmm4
+ vmovdqa64 %zmm21,%zmm5
+ vmovdqa64 %zmm22,%zmm6
+ vmovdqa64 %zmm23,%zmm7
+ vmovdqa64 %zmm24,%zmm8
+ vmovdqa64 %zmm25,%zmm9
+ vmovdqa64 %zmm26,%zmm10
+ vmovdqa64 %zmm27,%zmm11
+ vmovdqa64 %zmm28,%zmm12
+ vmovdqa64 %zmm29,%zmm13
+ vmovdqa64 %zmm30,%zmm14
+ vmovdqa64 %zmm31,%zmm15
+
+ vmovdqa64 %zmm0,%zmm16
+ vmovdqa64 %zmm1,%zmm17
+ vmovdqa64 %zmm2,%zmm18
+ vmovdqa64 %zmm3,%zmm19
+
+ movl $10,%eax
+ jmp .Loop16x
+
+.align 32
+.Loop16x:
+ vpaddd %zmm4,%zmm0,%zmm0
+ vpaddd %zmm5,%zmm1,%zmm1
+ vpaddd %zmm6,%zmm2,%zmm2
+ vpaddd %zmm7,%zmm3,%zmm3
+ vpxord %zmm0,%zmm12,%zmm12
+ vpxord %zmm1,%zmm13,%zmm13
+ vpxord %zmm2,%zmm14,%zmm14
+ vpxord %zmm3,%zmm15,%zmm15
+ vprold $16,%zmm12,%zmm12
+ vprold $16,%zmm13,%zmm13
+ vprold $16,%zmm14,%zmm14
+ vprold $16,%zmm15,%zmm15
+ vpaddd %zmm12,%zmm8,%zmm8
+ vpaddd %zmm13,%zmm9,%zmm9
+ vpaddd %zmm14,%zmm10,%zmm10
+ vpaddd %zmm15,%zmm11,%zmm11
+ vpxord %zmm8,%zmm4,%zmm4
+ vpxord %zmm9,%zmm5,%zmm5
+ vpxord %zmm10,%zmm6,%zmm6
+ vpxord %zmm11,%zmm7,%zmm7
+ vprold $12,%zmm4,%zmm4
+ vprold $12,%zmm5,%zmm5
+ vprold $12,%zmm6,%zmm6
+ vprold $12,%zmm7,%zmm7
+ vpaddd %zmm4,%zmm0,%zmm0
+ vpaddd %zmm5,%zmm1,%zmm1
+ vpaddd %zmm6,%zmm2,%zmm2
+ vpaddd %zmm7,%zmm3,%zmm3
+ vpxord %zmm0,%zmm12,%zmm12
+ vpxord %zmm1,%zmm13,%zmm13
+ vpxord %zmm2,%zmm14,%zmm14
+ vpxord %zmm3,%zmm15,%zmm15
+ vprold $8,%zmm12,%zmm12
+ vprold $8,%zmm13,%zmm13
+ vprold $8,%zmm14,%zmm14
+ vprold $8,%zmm15,%zmm15
+ vpaddd %zmm12,%zmm8,%zmm8
+ vpaddd %zmm13,%zmm9,%zmm9
+ vpaddd %zmm14,%zmm10,%zmm10
+ vpaddd %zmm15,%zmm11,%zmm11
+ vpxord %zmm8,%zmm4,%zmm4
+ vpxord %zmm9,%zmm5,%zmm5
+ vpxord %zmm10,%zmm6,%zmm6
+ vpxord %zmm11,%zmm7,%zmm7
+ vprold $7,%zmm4,%zmm4
+ vprold $7,%zmm5,%zmm5
+ vprold $7,%zmm6,%zmm6
+ vprold $7,%zmm7,%zmm7
+ vpaddd %zmm5,%zmm0,%zmm0
+ vpaddd %zmm6,%zmm1,%zmm1
+ vpaddd %zmm7,%zmm2,%zmm2
+ vpaddd %zmm4,%zmm3,%zmm3
+ vpxord %zmm0,%zmm15,%zmm15
+ vpxord %zmm1,%zmm12,%zmm12
+ vpxord %zmm2,%zmm13,%zmm13
+ vpxord %zmm3,%zmm14,%zmm14
+ vprold $16,%zmm15,%zmm15
+ vprold $16,%zmm12,%zmm12
+ vprold $16,%zmm13,%zmm13
+ vprold $16,%zmm14,%zmm14
+ vpaddd %zmm15,%zmm10,%zmm10
+ vpaddd %zmm12,%zmm11,%zmm11
+ vpaddd %zmm13,%zmm8,%zmm8
+ vpaddd %zmm14,%zmm9,%zmm9
+ vpxord %zmm10,%zmm5,%zmm5
+ vpxord %zmm11,%zmm6,%zmm6
+ vpxord %zmm8,%zmm7,%zmm7
+ vpxord %zmm9,%zmm4,%zmm4
+ vprold $12,%zmm5,%zmm5
+ vprold $12,%zmm6,%zmm6
+ vprold $12,%zmm7,%zmm7
+ vprold $12,%zmm4,%zmm4
+ vpaddd %zmm5,%zmm0,%zmm0
+ vpaddd %zmm6,%zmm1,%zmm1
+ vpaddd %zmm7,%zmm2,%zmm2
+ vpaddd %zmm4,%zmm3,%zmm3
+ vpxord %zmm0,%zmm15,%zmm15
+ vpxord %zmm1,%zmm12,%zmm12
+ vpxord %zmm2,%zmm13,%zmm13
+ vpxord %zmm3,%zmm14,%zmm14
+ vprold $8,%zmm15,%zmm15
+ vprold $8,%zmm12,%zmm12
+ vprold $8,%zmm13,%zmm13
+ vprold $8,%zmm14,%zmm14
+ vpaddd %zmm15,%zmm10,%zmm10
+ vpaddd %zmm12,%zmm11,%zmm11
+ vpaddd %zmm13,%zmm8,%zmm8
+ vpaddd %zmm14,%zmm9,%zmm9
+ vpxord %zmm10,%zmm5,%zmm5
+ vpxord %zmm11,%zmm6,%zmm6
+ vpxord %zmm8,%zmm7,%zmm7
+ vpxord %zmm9,%zmm4,%zmm4
+ vprold $7,%zmm5,%zmm5
+ vprold $7,%zmm6,%zmm6
+ vprold $7,%zmm7,%zmm7
+ vprold $7,%zmm4,%zmm4
+ decl %eax
+ jnz .Loop16x
+
+ vpaddd %zmm16,%zmm0,%zmm0
+ vpaddd %zmm17,%zmm1,%zmm1
+ vpaddd %zmm18,%zmm2,%zmm2
+ vpaddd %zmm19,%zmm3,%zmm3
+
+ vpunpckldq %zmm1,%zmm0,%zmm18
+ vpunpckldq %zmm3,%zmm2,%zmm19
+ vpunpckhdq %zmm1,%zmm0,%zmm0
+ vpunpckhdq %zmm3,%zmm2,%zmm2
+ vpunpcklqdq %zmm19,%zmm18,%zmm1
+ vpunpckhqdq %zmm19,%zmm18,%zmm18
+ vpunpcklqdq %zmm2,%zmm0,%zmm3
+ vpunpckhqdq %zmm2,%zmm0,%zmm0
+ vpaddd %zmm20,%zmm4,%zmm4
+ vpaddd %zmm21,%zmm5,%zmm5
+ vpaddd %zmm22,%zmm6,%zmm6
+ vpaddd %zmm23,%zmm7,%zmm7
+
+ vpunpckldq %zmm5,%zmm4,%zmm2
+ vpunpckldq %zmm7,%zmm6,%zmm19
+ vpunpckhdq %zmm5,%zmm4,%zmm4
+ vpunpckhdq %zmm7,%zmm6,%zmm6
+ vpunpcklqdq %zmm19,%zmm2,%zmm5
+ vpunpckhqdq %zmm19,%zmm2,%zmm2
+ vpunpcklqdq %zmm6,%zmm4,%zmm7
+ vpunpckhqdq %zmm6,%zmm4,%zmm4
+ vshufi32x4 $0x44,%zmm5,%zmm1,%zmm19
+ vshufi32x4 $0xee,%zmm5,%zmm1,%zmm5
+ vshufi32x4 $0x44,%zmm2,%zmm18,%zmm1
+ vshufi32x4 $0xee,%zmm2,%zmm18,%zmm2
+ vshufi32x4 $0x44,%zmm7,%zmm3,%zmm18
+ vshufi32x4 $0xee,%zmm7,%zmm3,%zmm7
+ vshufi32x4 $0x44,%zmm4,%zmm0,%zmm3
+ vshufi32x4 $0xee,%zmm4,%zmm0,%zmm4
+ vpaddd %zmm24,%zmm8,%zmm8
+ vpaddd %zmm25,%zmm9,%zmm9
+ vpaddd %zmm26,%zmm10,%zmm10
+ vpaddd %zmm27,%zmm11,%zmm11
+
+ vpunpckldq %zmm9,%zmm8,%zmm6
+ vpunpckldq %zmm11,%zmm10,%zmm0
+ vpunpckhdq %zmm9,%zmm8,%zmm8
+ vpunpckhdq %zmm11,%zmm10,%zmm10
+ vpunpcklqdq %zmm0,%zmm6,%zmm9
+ vpunpckhqdq %zmm0,%zmm6,%zmm6
+ vpunpcklqdq %zmm10,%zmm8,%zmm11
+ vpunpckhqdq %zmm10,%zmm8,%zmm8
+ vpaddd %zmm28,%zmm12,%zmm12
+ vpaddd %zmm29,%zmm13,%zmm13
+ vpaddd %zmm30,%zmm14,%zmm14
+ vpaddd %zmm31,%zmm15,%zmm15
+
+ vpunpckldq %zmm13,%zmm12,%zmm10
+ vpunpckldq %zmm15,%zmm14,%zmm0
+ vpunpckhdq %zmm13,%zmm12,%zmm12
+ vpunpckhdq %zmm15,%zmm14,%zmm14
+ vpunpcklqdq %zmm0,%zmm10,%zmm13
+ vpunpckhqdq %zmm0,%zmm10,%zmm10
+ vpunpcklqdq %zmm14,%zmm12,%zmm15
+ vpunpckhqdq %zmm14,%zmm12,%zmm12
+ vshufi32x4 $0x44,%zmm13,%zmm9,%zmm0
+ vshufi32x4 $0xee,%zmm13,%zmm9,%zmm13
+ vshufi32x4 $0x44,%zmm10,%zmm6,%zmm9
+ vshufi32x4 $0xee,%zmm10,%zmm6,%zmm10
+ vshufi32x4 $0x44,%zmm15,%zmm11,%zmm6
+ vshufi32x4 $0xee,%zmm15,%zmm11,%zmm15
+ vshufi32x4 $0x44,%zmm12,%zmm8,%zmm11
+ vshufi32x4 $0xee,%zmm12,%zmm8,%zmm12
+ vshufi32x4 $0x88,%zmm0,%zmm19,%zmm16
+ vshufi32x4 $0xdd,%zmm0,%zmm19,%zmm19
+ vshufi32x4 $0x88,%zmm13,%zmm5,%zmm0
+ vshufi32x4 $0xdd,%zmm13,%zmm5,%zmm13
+ vshufi32x4 $0x88,%zmm9,%zmm1,%zmm17
+ vshufi32x4 $0xdd,%zmm9,%zmm1,%zmm1
+ vshufi32x4 $0x88,%zmm10,%zmm2,%zmm9
+ vshufi32x4 $0xdd,%zmm10,%zmm2,%zmm10
+ vshufi32x4 $0x88,%zmm6,%zmm18,%zmm14
+ vshufi32x4 $0xdd,%zmm6,%zmm18,%zmm18
+ vshufi32x4 $0x88,%zmm15,%zmm7,%zmm6
+ vshufi32x4 $0xdd,%zmm15,%zmm7,%zmm15
+ vshufi32x4 $0x88,%zmm11,%zmm3,%zmm8
+ vshufi32x4 $0xdd,%zmm11,%zmm3,%zmm3
+ vshufi32x4 $0x88,%zmm12,%zmm4,%zmm11
+ vshufi32x4 $0xdd,%zmm12,%zmm4,%zmm12
+ cmpq $1024,%rdx
+ jb .Ltail16x
+
+ vpxord 0(%rsi),%zmm16,%zmm16
+ vpxord 64(%rsi),%zmm17,%zmm17
+ vpxord 128(%rsi),%zmm14,%zmm14
+ vpxord 192(%rsi),%zmm8,%zmm8
+ vmovdqu32 %zmm16,0(%rdi)
+ vmovdqu32 %zmm17,64(%rdi)
+ vmovdqu32 %zmm14,128(%rdi)
+ vmovdqu32 %zmm8,192(%rdi)
+
+ vpxord 256(%rsi),%zmm19,%zmm19
+ vpxord 320(%rsi),%zmm1,%zmm1
+ vpxord 384(%rsi),%zmm18,%zmm18
+ vpxord 448(%rsi),%zmm3,%zmm3
+ vmovdqu32 %zmm19,256(%rdi)
+ vmovdqu32 %zmm1,320(%rdi)
+ vmovdqu32 %zmm18,384(%rdi)
+ vmovdqu32 %zmm3,448(%rdi)
+
+ vpxord 512(%rsi),%zmm0,%zmm0
+ vpxord 576(%rsi),%zmm9,%zmm9
+ vpxord 640(%rsi),%zmm6,%zmm6
+ vpxord 704(%rsi),%zmm11,%zmm11
+ vmovdqu32 %zmm0,512(%rdi)
+ vmovdqu32 %zmm9,576(%rdi)
+ vmovdqu32 %zmm6,640(%rdi)
+ vmovdqu32 %zmm11,704(%rdi)
+
+ vpxord 768(%rsi),%zmm13,%zmm13
+ vpxord 832(%rsi),%zmm10,%zmm10
+ vpxord 896(%rsi),%zmm15,%zmm15
+ vpxord 960(%rsi),%zmm12,%zmm12
+ leaq 1024(%rsi),%rsi
+ vmovdqu32 %zmm13,768(%rdi)
+ vmovdqu32 %zmm10,832(%rdi)
+ vmovdqu32 %zmm15,896(%rdi)
+ vmovdqu32 %zmm12,960(%rdi)
+ leaq 1024(%rdi),%rdi
+
+ subq $1024,%rdx
+ jnz .Loop_outer16x
+
+ jmp .Ldone16x
+
+.align 32
+.Ltail16x:
+ xorq %r9,%r9
+ subq %rsi,%rdi
+ cmpq $64,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm16,%zmm16
+ vmovdqu32 %zmm16,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm17,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $128,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm17,%zmm17
+ vmovdqu32 %zmm17,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm14,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $192,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm14,%zmm14
+ vmovdqu32 %zmm14,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm8,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $256,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm8,%zmm8
+ vmovdqu32 %zmm8,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm19,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $320,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm19,%zmm19
+ vmovdqu32 %zmm19,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm1,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $384,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm1,%zmm1
+ vmovdqu32 %zmm1,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm18,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $448,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm18,%zmm18
+ vmovdqu32 %zmm18,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm3,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $512,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm3,%zmm3
+ vmovdqu32 %zmm3,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm0,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $576,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm0,%zmm0
+ vmovdqu32 %zmm0,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm9,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $640,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm9,%zmm9
+ vmovdqu32 %zmm9,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm6,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $704,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm6,%zmm6
+ vmovdqu32 %zmm6,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm11,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $768,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm11,%zmm11
+ vmovdqu32 %zmm11,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm13,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $832,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm13,%zmm13
+ vmovdqu32 %zmm13,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm10,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $896,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm10,%zmm10
+ vmovdqu32 %zmm10,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm15,%zmm16
+ leaq 64(%rsi),%rsi
+
+ cmpq $960,%rdx
+ jb .Less_than_64_16x
+ vpxord (%rsi),%zmm15,%zmm15
+ vmovdqu32 %zmm15,(%rdi,%rsi,1)
+ je .Ldone16x
+ vmovdqa32 %zmm12,%zmm16
+ leaq 64(%rsi),%rsi
+
+.Less_than_64_16x:
+ vmovdqa32 %zmm16,0(%rsp)
+ leaq (%rdi,%rsi,1),%rdi
+ andq $63,%rdx
+
+.Loop_tail16x:
+ movzbl (%rsi,%r9,1),%eax
+ movzbl (%rsp,%r9,1),%ecx
+ leaq 1(%r9),%r9
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r9,1)
+ decq %rdx
+ jnz .Loop_tail16x
+
+ vpxord %zmm16,%zmm16,%zmm16
+ vmovdqa32 %zmm16,0(%rsp)
+
+.Ldone16x:
+ vzeroall
+ leaq -8(%r10),%rsp
+
+.L16x_epilogue:
+ ret
+ENDPROC(chacha20_avx512)
+
+.align 32
+ENTRY(chacha20_avx512vl)
+ cmpq $0,%rdx
+ je .Lavx512vl_epilogue
+
+ leaq 8(%rsp),%r10
+
+ cmpq $128,%rdx
+ ja .Lchacha20_8xvl
+
+ subq $64+8,%rsp
+ andq $-64,%rsp
+ vbroadcasti128 .Lsigma(%rip),%ymm0
+ vbroadcasti128 (%rcx),%ymm1
+ vbroadcasti128 16(%rcx),%ymm2
+ vbroadcasti128 (%r8),%ymm3
+
+ vmovdqa32 %ymm0,%ymm16
+ vmovdqa32 %ymm1,%ymm17
+ vmovdqa32 %ymm2,%ymm18
+ vpaddd .Lzeroz(%rip),%ymm3,%ymm3
+ vmovdqa32 .Ltwoy(%rip),%ymm20
+ movq $10,%r8
+ vmovdqa32 %ymm3,%ymm19
+ jmp .Loop_avx512vl
+
+.align 16
+.Loop_outer_avx512vl:
+ vmovdqa32 %ymm18,%ymm2
+ vpaddd %ymm20,%ymm19,%ymm3
+ movq $10,%r8
+ vmovdqa32 %ymm3,%ymm19
+ jmp .Loop_avx512vl
+
+.align 32
+.Loop_avx512vl:
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+ vpshufd $78,%ymm2,%ymm2
+ vpshufd $57,%ymm1,%ymm1
+ vpshufd $147,%ymm3,%ymm3
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+ vpshufd $78,%ymm2,%ymm2
+ vpshufd $147,%ymm1,%ymm1
+ vpshufd $57,%ymm3,%ymm3
+ decq %r8
+ jnz .Loop_avx512vl
+ vpaddd %ymm16,%ymm0,%ymm0
+ vpaddd %ymm17,%ymm1,%ymm1
+ vpaddd %ymm18,%ymm2,%ymm2
+ vpaddd %ymm19,%ymm3,%ymm3
+
+ subq $64,%rdx
+ jb .Ltail64_avx512vl
+
+ vpxor 0(%rsi),%xmm0,%xmm4
+ vpxor 16(%rsi),%xmm1,%xmm5
+ vpxor 32(%rsi),%xmm2,%xmm6
+ vpxor 48(%rsi),%xmm3,%xmm7
+ leaq 64(%rsi),%rsi
+
+ vmovdqu %xmm4,0(%rdi)
+ vmovdqu %xmm5,16(%rdi)
+ vmovdqu %xmm6,32(%rdi)
+ vmovdqu %xmm7,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ jz .Ldone_avx512vl
+
+ vextracti128 $1,%ymm0,%xmm4
+ vextracti128 $1,%ymm1,%xmm5
+ vextracti128 $1,%ymm2,%xmm6
+ vextracti128 $1,%ymm3,%xmm7
+
+ subq $64,%rdx
+ jb .Ltail_avx512vl
+
+ vpxor 0(%rsi),%xmm4,%xmm4
+ vpxor 16(%rsi),%xmm5,%xmm5
+ vpxor 32(%rsi),%xmm6,%xmm6
+ vpxor 48(%rsi),%xmm7,%xmm7
+ leaq 64(%rsi),%rsi
+
+ vmovdqu %xmm4,0(%rdi)
+ vmovdqu %xmm5,16(%rdi)
+ vmovdqu %xmm6,32(%rdi)
+ vmovdqu %xmm7,48(%rdi)
+ leaq 64(%rdi),%rdi
+
+ vmovdqa32 %ymm16,%ymm0
+ vmovdqa32 %ymm17,%ymm1
+ jnz .Loop_outer_avx512vl
+
+ jmp .Ldone_avx512vl
+
+.align 16
+.Ltail64_avx512vl:
+ vmovdqa %xmm0,0(%rsp)
+ vmovdqa %xmm1,16(%rsp)
+ vmovdqa %xmm2,32(%rsp)
+ vmovdqa %xmm3,48(%rsp)
+ addq $64,%rdx
+ jmp .Loop_tail_avx512vl
+
+.align 16
+.Ltail_avx512vl:
+ vmovdqa %xmm4,0(%rsp)
+ vmovdqa %xmm5,16(%rsp)
+ vmovdqa %xmm6,32(%rsp)
+ vmovdqa %xmm7,48(%rsp)
+ addq $64,%rdx
+
+.Loop_tail_avx512vl:
+ movzbl (%rsi,%r8,1),%eax
+ movzbl (%rsp,%r8,1),%ecx
+ leaq 1(%r8),%r8
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r8,1)
+ decq %rdx
+ jnz .Loop_tail_avx512vl
+
+ vmovdqa32 %ymm16,0(%rsp)
+ vmovdqa32 %ymm16,32(%rsp)
+
+.Ldone_avx512vl:
+ vzeroall
+ leaq -8(%r10),%rsp
+.Lavx512vl_epilogue:
+ ret
+
+.align 32
+.Lchacha20_8xvl:
+ leaq 8(%rsp),%r10
+ subq $64+8,%rsp
+ andq $-64,%rsp
+ vzeroupper
+
+ leaq .Lsigma(%rip),%r9
+ vbroadcasti128 (%r9),%ymm3
+ vbroadcasti128 (%rcx),%ymm7
+ vbroadcasti128 16(%rcx),%ymm11
+ vbroadcasti128 (%r8),%ymm15
+
+ vpshufd $0x00,%ymm3,%ymm0
+ vpshufd $0x55,%ymm3,%ymm1
+ vpshufd $0xaa,%ymm3,%ymm2
+ vpshufd $0xff,%ymm3,%ymm3
+ vmovdqa64 %ymm0,%ymm16
+ vmovdqa64 %ymm1,%ymm17
+ vmovdqa64 %ymm2,%ymm18
+ vmovdqa64 %ymm3,%ymm19
+
+ vpshufd $0x00,%ymm7,%ymm4
+ vpshufd $0x55,%ymm7,%ymm5
+ vpshufd $0xaa,%ymm7,%ymm6
+ vpshufd $0xff,%ymm7,%ymm7
+ vmovdqa64 %ymm4,%ymm20
+ vmovdqa64 %ymm5,%ymm21
+ vmovdqa64 %ymm6,%ymm22
+ vmovdqa64 %ymm7,%ymm23
+
+ vpshufd $0x00,%ymm11,%ymm8
+ vpshufd $0x55,%ymm11,%ymm9
+ vpshufd $0xaa,%ymm11,%ymm10
+ vpshufd $0xff,%ymm11,%ymm11
+ vmovdqa64 %ymm8,%ymm24
+ vmovdqa64 %ymm9,%ymm25
+ vmovdqa64 %ymm10,%ymm26
+ vmovdqa64 %ymm11,%ymm27
+
+ vpshufd $0x00,%ymm15,%ymm12
+ vpshufd $0x55,%ymm15,%ymm13
+ vpshufd $0xaa,%ymm15,%ymm14
+ vpshufd $0xff,%ymm15,%ymm15
+ vpaddd .Lincy(%rip),%ymm12,%ymm12
+ vmovdqa64 %ymm12,%ymm28
+ vmovdqa64 %ymm13,%ymm29
+ vmovdqa64 %ymm14,%ymm30
+ vmovdqa64 %ymm15,%ymm31
+
+ movl $10,%eax
+ jmp .Loop8xvl
+
+.align 32
+.Loop_outer8xvl:
+
+
+ vpbroadcastd 8(%r9),%ymm2
+ vpbroadcastd 12(%r9),%ymm3
+ vpaddd .Leight(%rip),%ymm28,%ymm28
+ vmovdqa64 %ymm20,%ymm4
+ vmovdqa64 %ymm21,%ymm5
+ vmovdqa64 %ymm22,%ymm6
+ vmovdqa64 %ymm23,%ymm7
+ vmovdqa64 %ymm24,%ymm8
+ vmovdqa64 %ymm25,%ymm9
+ vmovdqa64 %ymm26,%ymm10
+ vmovdqa64 %ymm27,%ymm11
+ vmovdqa64 %ymm28,%ymm12
+ vmovdqa64 %ymm29,%ymm13
+ vmovdqa64 %ymm30,%ymm14
+ vmovdqa64 %ymm31,%ymm15
+
+ vmovdqa64 %ymm0,%ymm16
+ vmovdqa64 %ymm1,%ymm17
+ vmovdqa64 %ymm2,%ymm18
+ vmovdqa64 %ymm3,%ymm19
+
+ movl $10,%eax
+ jmp .Loop8xvl
+
+.align 32
+.Loop8xvl:
+ vpaddd %ymm4,%ymm0,%ymm0
+ vpaddd %ymm5,%ymm1,%ymm1
+ vpaddd %ymm6,%ymm2,%ymm2
+ vpaddd %ymm7,%ymm3,%ymm3
+ vpxor %ymm0,%ymm12,%ymm12
+ vpxor %ymm1,%ymm13,%ymm13
+ vpxor %ymm2,%ymm14,%ymm14
+ vpxor %ymm3,%ymm15,%ymm15
+ vprold $16,%ymm12,%ymm12
+ vprold $16,%ymm13,%ymm13
+ vprold $16,%ymm14,%ymm14
+ vprold $16,%ymm15,%ymm15
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxor %ymm8,%ymm4,%ymm4
+ vpxor %ymm9,%ymm5,%ymm5
+ vpxor %ymm10,%ymm6,%ymm6
+ vpxor %ymm11,%ymm7,%ymm7
+ vprold $12,%ymm4,%ymm4
+ vprold $12,%ymm5,%ymm5
+ vprold $12,%ymm6,%ymm6
+ vprold $12,%ymm7,%ymm7
+ vpaddd %ymm4,%ymm0,%ymm0
+ vpaddd %ymm5,%ymm1,%ymm1
+ vpaddd %ymm6,%ymm2,%ymm2
+ vpaddd %ymm7,%ymm3,%ymm3
+ vpxor %ymm0,%ymm12,%ymm12
+ vpxor %ymm1,%ymm13,%ymm13
+ vpxor %ymm2,%ymm14,%ymm14
+ vpxor %ymm3,%ymm15,%ymm15
+ vprold $8,%ymm12,%ymm12
+ vprold $8,%ymm13,%ymm13
+ vprold $8,%ymm14,%ymm14
+ vprold $8,%ymm15,%ymm15
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxor %ymm8,%ymm4,%ymm4
+ vpxor %ymm9,%ymm5,%ymm5
+ vpxor %ymm10,%ymm6,%ymm6
+ vpxor %ymm11,%ymm7,%ymm7
+ vprold $7,%ymm4,%ymm4
+ vprold $7,%ymm5,%ymm5
+ vprold $7,%ymm6,%ymm6
+ vprold $7,%ymm7,%ymm7
+ vpaddd %ymm5,%ymm0,%ymm0
+ vpaddd %ymm6,%ymm1,%ymm1
+ vpaddd %ymm7,%ymm2,%ymm2
+ vpaddd %ymm4,%ymm3,%ymm3
+ vpxor %ymm0,%ymm15,%ymm15
+ vpxor %ymm1,%ymm12,%ymm12
+ vpxor %ymm2,%ymm13,%ymm13
+ vpxor %ymm3,%ymm14,%ymm14
+ vprold $16,%ymm15,%ymm15
+ vprold $16,%ymm12,%ymm12
+ vprold $16,%ymm13,%ymm13
+ vprold $16,%ymm14,%ymm14
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxor %ymm10,%ymm5,%ymm5
+ vpxor %ymm11,%ymm6,%ymm6
+ vpxor %ymm8,%ymm7,%ymm7
+ vpxor %ymm9,%ymm4,%ymm4
+ vprold $12,%ymm5,%ymm5
+ vprold $12,%ymm6,%ymm6
+ vprold $12,%ymm7,%ymm7
+ vprold $12,%ymm4,%ymm4
+ vpaddd %ymm5,%ymm0,%ymm0
+ vpaddd %ymm6,%ymm1,%ymm1
+ vpaddd %ymm7,%ymm2,%ymm2
+ vpaddd %ymm4,%ymm3,%ymm3
+ vpxor %ymm0,%ymm15,%ymm15
+ vpxor %ymm1,%ymm12,%ymm12
+ vpxor %ymm2,%ymm13,%ymm13
+ vpxor %ymm3,%ymm14,%ymm14
+ vprold $8,%ymm15,%ymm15
+ vprold $8,%ymm12,%ymm12
+ vprold $8,%ymm13,%ymm13
+ vprold $8,%ymm14,%ymm14
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxor %ymm10,%ymm5,%ymm5
+ vpxor %ymm11,%ymm6,%ymm6
+ vpxor %ymm8,%ymm7,%ymm7
+ vpxor %ymm9,%ymm4,%ymm4
+ vprold $7,%ymm5,%ymm5
+ vprold $7,%ymm6,%ymm6
+ vprold $7,%ymm7,%ymm7
+ vprold $7,%ymm4,%ymm4
+ decl %eax
+ jnz .Loop8xvl
+
+ vpaddd %ymm16,%ymm0,%ymm0
+ vpaddd %ymm17,%ymm1,%ymm1
+ vpaddd %ymm18,%ymm2,%ymm2
+ vpaddd %ymm19,%ymm3,%ymm3
+
+ vpunpckldq %ymm1,%ymm0,%ymm18
+ vpunpckldq %ymm3,%ymm2,%ymm19
+ vpunpckhdq %ymm1,%ymm0,%ymm0
+ vpunpckhdq %ymm3,%ymm2,%ymm2
+ vpunpcklqdq %ymm19,%ymm18,%ymm1
+ vpunpckhqdq %ymm19,%ymm18,%ymm18
+ vpunpcklqdq %ymm2,%ymm0,%ymm3
+ vpunpckhqdq %ymm2,%ymm0,%ymm0
+ vpaddd %ymm20,%ymm4,%ymm4
+ vpaddd %ymm21,%ymm5,%ymm5
+ vpaddd %ymm22,%ymm6,%ymm6
+ vpaddd %ymm23,%ymm7,%ymm7
+
+ vpunpckldq %ymm5,%ymm4,%ymm2
+ vpunpckldq %ymm7,%ymm6,%ymm19
+ vpunpckhdq %ymm5,%ymm4,%ymm4
+ vpunpckhdq %ymm7,%ymm6,%ymm6
+ vpunpcklqdq %ymm19,%ymm2,%ymm5
+ vpunpckhqdq %ymm19,%ymm2,%ymm2
+ vpunpcklqdq %ymm6,%ymm4,%ymm7
+ vpunpckhqdq %ymm6,%ymm4,%ymm4
+ vshufi32x4 $0,%ymm5,%ymm1,%ymm19
+ vshufi32x4 $3,%ymm5,%ymm1,%ymm5
+ vshufi32x4 $0,%ymm2,%ymm18,%ymm1
+ vshufi32x4 $3,%ymm2,%ymm18,%ymm2
+ vshufi32x4 $0,%ymm7,%ymm3,%ymm18
+ vshufi32x4 $3,%ymm7,%ymm3,%ymm7
+ vshufi32x4 $0,%ymm4,%ymm0,%ymm3
+ vshufi32x4 $3,%ymm4,%ymm0,%ymm4
+ vpaddd %ymm24,%ymm8,%ymm8
+ vpaddd %ymm25,%ymm9,%ymm9
+ vpaddd %ymm26,%ymm10,%ymm10
+ vpaddd %ymm27,%ymm11,%ymm11
+
+ vpunpckldq %ymm9,%ymm8,%ymm6
+ vpunpckldq %ymm11,%ymm10,%ymm0
+ vpunpckhdq %ymm9,%ymm8,%ymm8
+ vpunpckhdq %ymm11,%ymm10,%ymm10
+ vpunpcklqdq %ymm0,%ymm6,%ymm9
+ vpunpckhqdq %ymm0,%ymm6,%ymm6
+ vpunpcklqdq %ymm10,%ymm8,%ymm11
+ vpunpckhqdq %ymm10,%ymm8,%ymm8
+ vpaddd %ymm28,%ymm12,%ymm12
+ vpaddd %ymm29,%ymm13,%ymm13
+ vpaddd %ymm30,%ymm14,%ymm14
+ vpaddd %ymm31,%ymm15,%ymm15
+
+ vpunpckldq %ymm13,%ymm12,%ymm10
+ vpunpckldq %ymm15,%ymm14,%ymm0
+ vpunpckhdq %ymm13,%ymm12,%ymm12
+ vpunpckhdq %ymm15,%ymm14,%ymm14
+ vpunpcklqdq %ymm0,%ymm10,%ymm13
+ vpunpckhqdq %ymm0,%ymm10,%ymm10
+ vpunpcklqdq %ymm14,%ymm12,%ymm15
+ vpunpckhqdq %ymm14,%ymm12,%ymm12
+ vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
+ vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
+ vperm2i128 $0x20,%ymm10,%ymm6,%ymm9
+ vperm2i128 $0x31,%ymm10,%ymm6,%ymm10
+ vperm2i128 $0x20,%ymm15,%ymm11,%ymm6
+ vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
+ vperm2i128 $0x20,%ymm12,%ymm8,%ymm11
+ vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
+ cmpq $512,%rdx
+ jb .Ltail8xvl
+
+ movl $0x80,%eax
+ vpxord 0(%rsi),%ymm19,%ymm19
+ vpxor 32(%rsi),%ymm0,%ymm0
+ vpxor 64(%rsi),%ymm5,%ymm5
+ vpxor 96(%rsi),%ymm13,%ymm13
+ leaq (%rsi,%rax,1),%rsi
+ vmovdqu32 %ymm19,0(%rdi)
+ vmovdqu %ymm0,32(%rdi)
+ vmovdqu %ymm5,64(%rdi)
+ vmovdqu %ymm13,96(%rdi)
+ leaq (%rdi,%rax,1),%rdi
+
+ vpxor 0(%rsi),%ymm1,%ymm1
+ vpxor 32(%rsi),%ymm9,%ymm9
+ vpxor 64(%rsi),%ymm2,%ymm2
+ vpxor 96(%rsi),%ymm10,%ymm10
+ leaq (%rsi,%rax,1),%rsi
+ vmovdqu %ymm1,0(%rdi)
+ vmovdqu %ymm9,32(%rdi)
+ vmovdqu %ymm2,64(%rdi)
+ vmovdqu %ymm10,96(%rdi)
+ leaq (%rdi,%rax,1),%rdi
+
+ vpxord 0(%rsi),%ymm18,%ymm18
+ vpxor 32(%rsi),%ymm6,%ymm6
+ vpxor 64(%rsi),%ymm7,%ymm7
+ vpxor 96(%rsi),%ymm15,%ymm15
+ leaq (%rsi,%rax,1),%rsi
+ vmovdqu32 %ymm18,0(%rdi)
+ vmovdqu %ymm6,32(%rdi)
+ vmovdqu %ymm7,64(%rdi)
+ vmovdqu %ymm15,96(%rdi)
+ leaq (%rdi,%rax,1),%rdi
+
+ vpxor 0(%rsi),%ymm3,%ymm3
+ vpxor 32(%rsi),%ymm11,%ymm11
+ vpxor 64(%rsi),%ymm4,%ymm4
+ vpxor 96(%rsi),%ymm12,%ymm12
+ leaq (%rsi,%rax,1),%rsi
+ vmovdqu %ymm3,0(%rdi)
+ vmovdqu %ymm11,32(%rdi)
+ vmovdqu %ymm4,64(%rdi)
+ vmovdqu %ymm12,96(%rdi)
+ leaq (%rdi,%rax,1),%rdi
+
+ vpbroadcastd 0(%r9),%ymm0
+ vpbroadcastd 4(%r9),%ymm1
+
+ subq $512,%rdx
+ jnz .Loop_outer8xvl
+
+ jmp .Ldone8xvl
+
+.align 32
+.Ltail8xvl:
+ vmovdqa64 %ymm19,%ymm8
+ xorq %r9,%r9
+ subq %rsi,%rdi
+ cmpq $64,%rdx
+ jb .Less_than_64_8xvl
+ vpxor 0(%rsi),%ymm8,%ymm8
+ vpxor 32(%rsi),%ymm0,%ymm0
+ vmovdqu %ymm8,0(%rdi,%rsi,1)
+ vmovdqu %ymm0,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa %ymm5,%ymm8
+ vmovdqa %ymm13,%ymm0
+ leaq 64(%rsi),%rsi
+
+ cmpq $128,%rdx
+ jb .Less_than_64_8xvl
+ vpxor 0(%rsi),%ymm5,%ymm5
+ vpxor 32(%rsi),%ymm13,%ymm13
+ vmovdqu %ymm5,0(%rdi,%rsi,1)
+ vmovdqu %ymm13,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa %ymm1,%ymm8
+ vmovdqa %ymm9,%ymm0
+ leaq 64(%rsi),%rsi
+
+ cmpq $192,%rdx
+ jb .Less_than_64_8xvl
+ vpxor 0(%rsi),%ymm1,%ymm1
+ vpxor 32(%rsi),%ymm9,%ymm9
+ vmovdqu %ymm1,0(%rdi,%rsi,1)
+ vmovdqu %ymm9,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa %ymm2,%ymm8
+ vmovdqa %ymm10,%ymm0
+ leaq 64(%rsi),%rsi
+
+ cmpq $256,%rdx
+ jb .Less_than_64_8xvl
+ vpxor 0(%rsi),%ymm2,%ymm2
+ vpxor 32(%rsi),%ymm10,%ymm10
+ vmovdqu %ymm2,0(%rdi,%rsi,1)
+ vmovdqu %ymm10,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa32 %ymm18,%ymm8
+ vmovdqa %ymm6,%ymm0
+ leaq 64(%rsi),%rsi
+
+ cmpq $320,%rdx
+ jb .Less_than_64_8xvl
+ vpxord 0(%rsi),%ymm18,%ymm18
+ vpxor 32(%rsi),%ymm6,%ymm6
+ vmovdqu32 %ymm18,0(%rdi,%rsi,1)
+ vmovdqu %ymm6,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa %ymm7,%ymm8
+ vmovdqa %ymm15,%ymm0
+ leaq 64(%rsi),%rsi
+
+ cmpq $384,%rdx
+ jb .Less_than_64_8xvl
+ vpxor 0(%rsi),%ymm7,%ymm7
+ vpxor 32(%rsi),%ymm15,%ymm15
+ vmovdqu %ymm7,0(%rdi,%rsi,1)
+ vmovdqu %ymm15,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa %ymm3,%ymm8
+ vmovdqa %ymm11,%ymm0
+ leaq 64(%rsi),%rsi
+
+ cmpq $448,%rdx
+ jb .Less_than_64_8xvl
+ vpxor 0(%rsi),%ymm3,%ymm3
+ vpxor 32(%rsi),%ymm11,%ymm11
+ vmovdqu %ymm3,0(%rdi,%rsi,1)
+ vmovdqu %ymm11,32(%rdi,%rsi,1)
+ je .Ldone8xvl
+ vmovdqa %ymm4,%ymm8
+ vmovdqa %ymm12,%ymm0
+ leaq 64(%rsi),%rsi
+
+.Less_than_64_8xvl:
+ vmovdqa %ymm8,0(%rsp)
+ vmovdqa %ymm0,32(%rsp)
+ leaq (%rdi,%rsi,1),%rdi
+ andq $63,%rdx
+
+.Loop_tail8xvl:
+ movzbl (%rsi,%r9,1),%eax
+ movzbl (%rsp,%r9,1),%ecx
+ leaq 1(%r9),%r9
+ xorl %ecx,%eax
+ movb %al,-1(%rdi,%r9,1)
+ decq %rdx
+ jnz .Loop_tail8xvl
+
+ vpxor %ymm8,%ymm8,%ymm8
+ vmovdqa %ymm8,0(%rsp)
+ vmovdqa %ymm8,32(%rsp)
+
+.Ldone8xvl:
+ vzeroall
+ leaq -8(%r10),%rsp
+.L8xvl_epilogue:
+ ret
+ENDPROC(chacha20_avx512vl)
+
+#endif /* CONFIG_AS_AVX512 */
diff --git a/arch/x86/crypto/chacha20_glue.c b/arch/x86/crypto/chacha20_glue.c
index ba66e23cd752..c7027172ead0 100644
--- a/arch/x86/crypto/chacha20_glue.c
+++ b/arch/x86/crypto/chacha20_glue.c
@@ -16,74 +16,47 @@
#include <linux/module.h>
#include <asm/fpu/api.h>
#include <asm/simd.h>
+#include <asm/intel-family.h>

#define CHACHA20_STATE_ALIGN 16

-asmlinkage void chacha20_block_xor_ssse3(u32 *state, u8 *dst, const u8 *src,
- unsigned int len);
-asmlinkage void chacha20_4block_xor_ssse3(u32 *state, u8 *dst, const u8 *src,
- unsigned int len);
-#ifdef CONFIG_AS_AVX2
-asmlinkage void chacha20_2block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
- unsigned int len);
-asmlinkage void chacha20_4block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
- unsigned int len);
-asmlinkage void chacha20_8block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
- unsigned int len);
-static bool chacha20_use_avx2;
-#endif
-
-static unsigned int chacha20_advance(unsigned int len, unsigned int maxblocks)
-{
- len = min(len, maxblocks * CHACHA20_BLOCK_SIZE);
- return round_up(len, CHACHA20_BLOCK_SIZE) / CHACHA20_BLOCK_SIZE;
-}
+bool crypto_chacha20_use_avx2;
+EXPORT_SYMBOL_GPL(crypto_chacha20_use_avx2);
+bool crypto_chacha20_use_avx512;
+EXPORT_SYMBOL_GPL(crypto_chacha20_use_avx512);
+bool crypto_chacha20_use_avx512vl;
+EXPORT_SYMBOL_GPL(crypto_chacha20_use_avx512vl);
+
+asmlinkage void hchacha20_ssse3(u32 *derived_key, const u8 *nonce,
+ const u8 *key);
+asmlinkage void chacha20_ssse3(u8 *out, const u8 *in, const size_t len,
+ const u32 key[8], const u32 counter[4]);
+asmlinkage void chacha20_avx2(u8 *out, const u8 *in, const size_t len,
+ const u32 key[8], const u32 counter[4]);
+asmlinkage void chacha20_avx512(u8 *out, const u8 *in, const size_t len,
+ const u32 key[8], const u32 counter[4]);
+asmlinkage void chacha20_avx512vl(u8 *out, const u8 *in, const size_t len,
+ const u32 key[8], const u32 counter[4]);

void crypto_chacha20_dosimd(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes)
{
-#ifdef CONFIG_AS_AVX2
- if (chacha20_use_avx2) {
- while (bytes >= CHACHA20_BLOCK_SIZE * 8) {
- chacha20_8block_xor_avx2(state, dst, src, bytes);
- bytes -= CHACHA20_BLOCK_SIZE * 8;
- src += CHACHA20_BLOCK_SIZE * 8;
- dst += CHACHA20_BLOCK_SIZE * 8;
- state[12] += 8;
- }
- if (bytes > CHACHA20_BLOCK_SIZE * 4) {
- chacha20_8block_xor_avx2(state, dst, src, bytes);
- state[12] += chacha20_advance(bytes, 8);
- return;
- }
- if (bytes > CHACHA20_BLOCK_SIZE * 2) {
- chacha20_4block_xor_avx2(state, dst, src, bytes);
- state[12] += chacha20_advance(bytes, 4);
- return;
- }
- if (bytes > CHACHA20_BLOCK_SIZE) {
- chacha20_2block_xor_avx2(state, dst, src, bytes);
- state[12] += chacha20_advance(bytes, 2);
- return;
- }
- }
-#endif
- while (bytes >= CHACHA20_BLOCK_SIZE * 4) {
- chacha20_4block_xor_ssse3(state, dst, src, bytes);
- bytes -= CHACHA20_BLOCK_SIZE * 4;
- src += CHACHA20_BLOCK_SIZE * 4;
- dst += CHACHA20_BLOCK_SIZE * 4;
- state[12] += 4;
- }
- if (bytes > CHACHA20_BLOCK_SIZE) {
- chacha20_4block_xor_ssse3(state, dst, src, bytes);
- state[12] += chacha20_advance(bytes, 4);
- return;
- }
- if (bytes) {
- chacha20_block_xor_ssse3(state, dst, src, bytes);
- state[12]++;
- }
+ u32 *key = state + 4;
+ u32 *counter = key + 8;
+
+ if (IS_ENABLED(CONFIG_AS_AVX512) && crypto_chacha20_use_avx512 &&
+ bytes >= CHACHA20_BLOCK_SIZE * 8)
+ chacha20_avx512(dst, src, bytes, key, counter);
+ else if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ crypto_chacha20_use_avx512vl &&
+ bytes >= CHACHA20_BLOCK_SIZE * 4)
+ chacha20_avx512vl(dst, src, bytes, key, counter);
+ else if (IS_ENABLED(CONFIG_AS_AVX2) && crypto_chacha20_use_avx2 &&
+ bytes >= CHACHA20_BLOCK_SIZE * 4)
+ chacha20_avx2(dst, src, bytes, key, counter);
+ else
+ chacha20_ssse3(dst, src, bytes, key, counter);
+ counter[0] += (bytes + 63) / 64;
}
EXPORT_SYMBOL_GPL(crypto_chacha20_dosimd);

@@ -146,11 +119,25 @@ static int __init chacha20_simd_mod_init(void)
if (!boot_cpu_has(X86_FEATURE_SSSE3))
return 0;

-#ifdef CONFIG_AS_AVX2
- chacha20_use_avx2 = boot_cpu_has(X86_FEATURE_AVX) &&
- boot_cpu_has(X86_FEATURE_AVX2) &&
- cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL);
-#endif
+ crypto_chacha20_use_avx2 =
+ boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL);
+ crypto_chacha20_use_avx512 =
+ boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_AVX512F) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM |
+ XFEATURE_MASK_AVX512, NULL) &&
+ /* Skylake downclocks unacceptably much when using zmm. */
+ boot_cpu_data.x86_model != INTEL_FAM6_SKYLAKE_X;
+ crypto_chacha20_use_avx512vl =
+ boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_AVX512F) &&
+ boot_cpu_has(X86_FEATURE_AVX512VL) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM |
+ XFEATURE_MASK_AVX512, NULL);
return crypto_register_skcipher(&alg);
}

diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index 0dd99c928123..8eeed26bcf93 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -19,6 +19,10 @@ struct crypto_chacha20_ctx {
u32 key[8];
};

+extern bool crypto_chacha20_use_avx2;
+extern bool crypto_chacha20_use_avx512;
+extern bool crypto_chacha20_use_avx512vl;
+
void chacha20_block(u32 *state, u8 *stream);
void crypto_chacha20_generic(u32 *state, u8 *dst, const u8 *src,
unsigned int bytes);
diff --git a/lib/zinc/chacha20/chacha20-x86_64-glue.c b/lib/zinc/chacha20/chacha20-x86_64-glue.c
index 07f72729a64e..0ffa534708b1 100644
--- a/lib/zinc/chacha20/chacha20-x86_64-glue.c
+++ b/lib/zinc/chacha20/chacha20-x86_64-glue.c
@@ -11,7 +11,8 @@

static bool chacha20_use_ssse3 __ro_after_init;
static bool *const chacha20_nobs[] __initconst = {
- &chacha20_use_ssse3 };
+ &chacha20_use_ssse3, &crypto_chacha20_use_avx2,
+ &crypto_chacha20_use_avx512, &crypto_chacha20_use_avx512vl };

static void __init chacha20_fpu_init(void)
{

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