1 files changed, 2084 insertions, 0 deletions
diff --git a/src/crypto/chacha20-x86_64.S b/src/crypto/chacha20-x86_64.S
new file mode 100644
index 0000000..64cbc83
--- /dev/null
+++ b/src/crypto/chacha20-x86_64.S
@@ -0,0 +1,2084 @@
+/* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * - Redistributions of source code must retain copyright notices,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ * - Neither the name of the CRYPTOGAMS nor the names of its
+ * copyright holder and contributors may be used to endorse or
+ * promote products derived from this software without specific
+ * prior written permission.
+ * ALTERNATIVELY, provided that this notice is retained in full, this
+ * product may be distributed under the terms of the GNU General Public
+ * License (GPL), in which case the provisions of the GPL apply INSTEAD OF
+ * those given above.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#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
+
+.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)
+#endif /* CONFIG_AS_AVX512 */