Re: [PATCH] crypto: vmx: Remove dubiously licensed crypto code

[Tyrel Datwyler]

Adding Andy to the discussion as he may be able to shine light on
licensing issue of the crypto perl scripts in question.

-Tyrel

On 03/29/2017 05:56 AM, Michal Suchanek wrote:
> While reviewing commit 11c6e16ee13a ("crypto: vmx - Adding asm
> subroutines for XTS") which adds the OpenSSL license header to
> drivers/crypto/vmx/aesp8-ppc.pl licensing of this driver came into
> qestion. The whole license reads:
> 
>  # Licensed under the OpenSSL license (the "License").  You may not use
>  # this file except in compliance with the License.  You can obtain a
>  # copy
>  # in the file LICENSE in the source distribution or at
>  # https://www.openssl.org/source/license.html
> 
>  #
>  # ====================================================================
>  # Written by Andy Polyakov <appro@xxxxxxxxxxx> for the OpenSSL
>  # project. The module is, however, dual licensed under OpenSSL and
>  # CRYPTOGAMS licenses depending on where you obtain it. For further
>  # details see http://www.openssl.org/~appro/cryptogams/.
>  # ====================================================================
> 
> After seeking legal advice it is still not clear that this driver can be
> legally used in Linux. In particular the "depending on where you obtain
> it" part does not make it clear when you can apply the GPL and when the
> OpenSSL license.
> 
> I tried contacting the author of the code for clarification but did not
> hear back. In absence of clear licensing the only solution I see is
> removing this code.
> 
> Signed-off-by: Michal Suchanek <msuchanek@xxxxxxx>
> ---
>  MAINTAINERS                       |   12 -
>  drivers/crypto/Kconfig            |    8 -
>  drivers/crypto/Makefile           |    1 -
>  drivers/crypto/vmx/.gitignore     |    2 -
>  drivers/crypto/vmx/Kconfig        |    9 -
>  drivers/crypto/vmx/Makefile       |   21 -
>  drivers/crypto/vmx/aes.c          |  150 --
>  drivers/crypto/vmx/aes_cbc.c      |  202 --
>  drivers/crypto/vmx/aes_ctr.c      |  191 --
>  drivers/crypto/vmx/aes_xts.c      |  190 --
>  drivers/crypto/vmx/aesp8-ppc.h    |   25 -
>  drivers/crypto/vmx/aesp8-ppc.pl   | 3789 -------------------------------------
>  drivers/crypto/vmx/ghash.c        |  227 ---
>  drivers/crypto/vmx/ghashp8-ppc.pl |  234 ---
>  drivers/crypto/vmx/ppc-xlate.pl   |  228 ---
>  drivers/crypto/vmx/vmx.c          |   88 -
>  16 files changed, 5377 deletions(-)
>  delete mode 100644 drivers/crypto/vmx/.gitignore
>  delete mode 100644 drivers/crypto/vmx/Kconfig
>  delete mode 100644 drivers/crypto/vmx/Makefile
>  delete mode 100644 drivers/crypto/vmx/aes.c
>  delete mode 100644 drivers/crypto/vmx/aes_cbc.c
>  delete mode 100644 drivers/crypto/vmx/aes_ctr.c
>  delete mode 100644 drivers/crypto/vmx/aes_xts.c
>  delete mode 100644 drivers/crypto/vmx/aesp8-ppc.h
>  delete mode 100644 drivers/crypto/vmx/aesp8-ppc.pl
>  delete mode 100644 drivers/crypto/vmx/ghash.c
>  delete mode 100644 drivers/crypto/vmx/ghashp8-ppc.pl
>  delete mode 100644 drivers/crypto/vmx/ppc-xlate.pl
>  delete mode 100644 drivers/crypto/vmx/vmx.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 1b0a87ffffab..fd4cbf046ab4 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -6190,18 +6190,6 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux.git
>  S:	Maintained
>  F:	arch/ia64/
> 
> -IBM Power VMX Cryptographic instructions
> -M:	Leonidas S. Barbosa <leosilva@xxxxxxxxxxxxxxxxxx>
> -M:	Paulo Flabiano Smorigo <pfsmorigo@xxxxxxxxxxxxxxxxxx>
> -L:	linux-crypto@xxxxxxxxxxxxxxx
> -S:	Supported
> -F:	drivers/crypto/vmx/Makefile
> -F:	drivers/crypto/vmx/Kconfig
> -F:	drivers/crypto/vmx/vmx.c
> -F:	drivers/crypto/vmx/aes*
> -F:	drivers/crypto/vmx/ghash*
> -F:	drivers/crypto/vmx/ppc-xlate.pl
> -
>  IBM Power in-Nest Crypto Acceleration
>  M:	Leonidas S. Barbosa <leosilva@xxxxxxxxxxxxxxxxxx>
>  M:	Paulo Flabiano Smorigo <pfsmorigo@xxxxxxxxxxxxxxxxxx>
> diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
> index 473d31288ad8..9fcd3af1f2f1 100644
> --- a/drivers/crypto/Kconfig
> +++ b/drivers/crypto/Kconfig
> @@ -530,14 +530,6 @@ config CRYPTO_DEV_QCE
>  	  hardware. To compile this driver as a module, choose M here. The
>  	  module will be called qcrypto.
> 
> -config CRYPTO_DEV_VMX
> -	bool "Support for VMX cryptographic acceleration instructions"
> -	depends on PPC64 && VSX
> -	help
> -	  Support for VMX cryptographic acceleration instructions.
> -
> -source "drivers/crypto/vmx/Kconfig"
> -
>  config CRYPTO_DEV_IMGTEC_HASH
>  	tristate "Imagination Technologies hardware hash accelerator"
>  	depends on MIPS || COMPILE_TEST
> diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
> index 739609471169..486e57e10e7a 100644
> --- a/drivers/crypto/Makefile
> +++ b/drivers/crypto/Makefile
> @@ -34,5 +34,4 @@ obj-$(CONFIG_CRYPTO_DEV_SUN4I_SS) += sunxi-ss/
>  obj-$(CONFIG_CRYPTO_DEV_TALITOS) += talitos.o
>  obj-$(CONFIG_CRYPTO_DEV_UX500) += ux500/
>  obj-$(CONFIG_CRYPTO_DEV_VIRTIO) += virtio/
> -obj-$(CONFIG_CRYPTO_DEV_VMX) += vmx/
>  obj-$(CONFIG_CRYPTO_DEV_BCM_SPU) += bcm/
> diff --git a/drivers/crypto/vmx/.gitignore b/drivers/crypto/vmx/.gitignore
> deleted file mode 100644
> index af4a7ce4738d..000000000000
> --- a/drivers/crypto/vmx/.gitignore
> +++ /dev/null
> @@ -1,2 +0,0 @@
> -aesp8-ppc.S
> -ghashp8-ppc.S
> diff --git a/drivers/crypto/vmx/Kconfig b/drivers/crypto/vmx/Kconfig
> deleted file mode 100644
> index c3d524ea6998..000000000000
> --- a/drivers/crypto/vmx/Kconfig
> +++ /dev/null
> @@ -1,9 +0,0 @@
> -config CRYPTO_DEV_VMX_ENCRYPT
> -	tristate "Encryption acceleration support on P8 CPU"
> -	depends on CRYPTO_DEV_VMX
> -	select CRYPTO_GHASH
> -	default m
> -	help
> -	  Support for VMX cryptographic acceleration instructions on Power8 CPU.
> -	  This module supports acceleration for AES and GHASH in hardware. If you
> -	  choose 'M' here, this module will be called vmx-crypto.
> diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
> deleted file mode 100644
> index 55f7c392582f..000000000000
> --- a/drivers/crypto/vmx/Makefile
> +++ /dev/null
> @@ -1,21 +0,0 @@
> -obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o
> -vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes_xts.o ghash.o
> -
> -ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
> -TARGET := linux-ppc64le
> -else
> -TARGET := linux-ppc64
> -endif
> -
> -quiet_cmd_perl = PERL $@
> -      cmd_perl = $(PERL) $(<) $(TARGET) > $(@)
> -
> -targets += aesp8-ppc.S ghashp8-ppc.S
> -
> -$(obj)/aesp8-ppc.S: $(src)/aesp8-ppc.pl FORCE
> -	$(call if_changed,perl)
> -  
> -$(obj)/ghashp8-ppc.S: $(src)/ghashp8-ppc.pl FORCE
> -	$(call if_changed,perl)
> -
> -clean-files := aesp8-ppc.S ghashp8-ppc.S
> diff --git a/drivers/crypto/vmx/aes.c b/drivers/crypto/vmx/aes.c
> deleted file mode 100644
> index 022c7ab7351a..000000000000
> --- a/drivers/crypto/vmx/aes.c
> +++ /dev/null
> @@ -1,150 +0,0 @@
> -/**
> - * AES routines supporting VMX instructions on the Power 8
> - *
> - * Copyright (C) 2015 International Business Machines Inc.
> - *
> - * 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; version 2 only.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - * Author: Marcelo Henrique Cerri <mhcerri@xxxxxxxxxx>
> - */
> -
> -#include <linux/types.h>
> -#include <linux/err.h>
> -#include <linux/crypto.h>
> -#include <linux/delay.h>
> -#include <linux/hardirq.h>
> -#include <asm/switch_to.h>
> -#include <crypto/aes.h>
> -
> -#include "aesp8-ppc.h"
> -
> -struct p8_aes_ctx {
> -	struct crypto_cipher *fallback;
> -	struct aes_key enc_key;
> -	struct aes_key dec_key;
> -};
> -
> -static int p8_aes_init(struct crypto_tfm *tfm)
> -{
> -	const char *alg;
> -	struct crypto_cipher *fallback;
> -	struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (!(alg = crypto_tfm_alg_name(tfm))) {
> -		printk(KERN_ERR "Failed to get algorithm name.\n");
> -		return -ENOENT;
> -	}
> -
> -	fallback = crypto_alloc_cipher(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
> -	if (IS_ERR(fallback)) {
> -		printk(KERN_ERR
> -		       "Failed to allocate transformation for '%s': %ld\n",
> -		       alg, PTR_ERR(fallback));
> -		return PTR_ERR(fallback);
> -	}
> -	printk(KERN_INFO "Using '%s' as fallback implementation.\n",
> -	       crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback));
> -
> -	crypto_cipher_set_flags(fallback,
> -				crypto_cipher_get_flags((struct
> -							 crypto_cipher *)
> -							tfm));
> -	ctx->fallback = fallback;
> -
> -	return 0;
> -}
> -
> -static void p8_aes_exit(struct crypto_tfm *tfm)
> -{
> -	struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (ctx->fallback) {
> -		crypto_free_cipher(ctx->fallback);
> -		ctx->fallback = NULL;
> -	}
> -}
> -
> -static int p8_aes_setkey(struct crypto_tfm *tfm, const u8 *key,
> -			 unsigned int keylen)
> -{
> -	int ret;
> -	struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	preempt_disable();
> -	pagefault_disable();
> -	enable_kernel_vsx();
> -	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
> -	ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
> -	disable_kernel_vsx();
> -	pagefault_enable();
> -	preempt_enable();
> -
> -	ret += crypto_cipher_setkey(ctx->fallback, key, keylen);
> -	return ret;
> -}
> -
> -static void p8_aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
> -{
> -	struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (in_interrupt()) {
> -		crypto_cipher_encrypt_one(ctx->fallback, dst, src);
> -	} else {
> -		preempt_disable();
> -		pagefault_disable();
> -		enable_kernel_vsx();
> -		aes_p8_encrypt(src, dst, &ctx->enc_key);
> -		disable_kernel_vsx();
> -		pagefault_enable();
> -		preempt_enable();
> -	}
> -}
> -
> -static void p8_aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
> -{
> -	struct p8_aes_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (in_interrupt()) {
> -		crypto_cipher_decrypt_one(ctx->fallback, dst, src);
> -	} else {
> -		preempt_disable();
> -		pagefault_disable();
> -		enable_kernel_vsx();
> -		aes_p8_decrypt(src, dst, &ctx->dec_key);
> -		disable_kernel_vsx();
> -		pagefault_enable();
> -		preempt_enable();
> -	}
> -}
> -
> -struct crypto_alg p8_aes_alg = {
> -	.cra_name = "aes",
> -	.cra_driver_name = "p8_aes",
> -	.cra_module = THIS_MODULE,
> -	.cra_priority = 1000,
> -	.cra_type = NULL,
> -	.cra_flags = CRYPTO_ALG_TYPE_CIPHER | CRYPTO_ALG_NEED_FALLBACK,
> -	.cra_alignmask = 0,
> -	.cra_blocksize = AES_BLOCK_SIZE,
> -	.cra_ctxsize = sizeof(struct p8_aes_ctx),
> -	.cra_init = p8_aes_init,
> -	.cra_exit = p8_aes_exit,
> -	.cra_cipher = {
> -		       .cia_min_keysize = AES_MIN_KEY_SIZE,
> -		       .cia_max_keysize = AES_MAX_KEY_SIZE,
> -		       .cia_setkey = p8_aes_setkey,
> -		       .cia_encrypt = p8_aes_encrypt,
> -		       .cia_decrypt = p8_aes_decrypt,
> -	},
> -};
> diff --git a/drivers/crypto/vmx/aes_cbc.c b/drivers/crypto/vmx/aes_cbc.c
> deleted file mode 100644
> index 72a26eb4e954..000000000000
> --- a/drivers/crypto/vmx/aes_cbc.c
> +++ /dev/null
> @@ -1,202 +0,0 @@
> -/**
> - * AES CBC routines supporting VMX instructions on the Power 8
> - *
> - * Copyright (C) 2015 International Business Machines Inc.
> - *
> - * 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; version 2 only.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - * Author: Marcelo Henrique Cerri <mhcerri@xxxxxxxxxx>
> - */
> -
> -#include <linux/types.h>
> -#include <linux/err.h>
> -#include <linux/crypto.h>
> -#include <linux/delay.h>
> -#include <linux/hardirq.h>
> -#include <asm/switch_to.h>
> -#include <crypto/aes.h>
> -#include <crypto/scatterwalk.h>
> -#include <crypto/skcipher.h>
> -
> -#include "aesp8-ppc.h"
> -
> -struct p8_aes_cbc_ctx {
> -	struct crypto_skcipher *fallback;
> -	struct aes_key enc_key;
> -	struct aes_key dec_key;
> -};
> -
> -static int p8_aes_cbc_init(struct crypto_tfm *tfm)
> -{
> -	const char *alg;
> -	struct crypto_skcipher *fallback;
> -	struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (!(alg = crypto_tfm_alg_name(tfm))) {
> -		printk(KERN_ERR "Failed to get algorithm name.\n");
> -		return -ENOENT;
> -	}
> -
> -	fallback = crypto_alloc_skcipher(alg, 0,
> -			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
> -
> -	if (IS_ERR(fallback)) {
> -		printk(KERN_ERR
> -		       "Failed to allocate transformation for '%s': %ld\n",
> -		       alg, PTR_ERR(fallback));
> -		return PTR_ERR(fallback);
> -	}
> -	printk(KERN_INFO "Using '%s' as fallback implementation.\n",
> -		crypto_skcipher_driver_name(fallback));
> -
> -
> -	crypto_skcipher_set_flags(
> -		fallback,
> -		crypto_skcipher_get_flags((struct crypto_skcipher *)tfm));
> -	ctx->fallback = fallback;
> -
> -	return 0;
> -}
> -
> -static void p8_aes_cbc_exit(struct crypto_tfm *tfm)
> -{
> -	struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (ctx->fallback) {
> -		crypto_free_skcipher(ctx->fallback);
> -		ctx->fallback = NULL;
> -	}
> -}
> -
> -static int p8_aes_cbc_setkey(struct crypto_tfm *tfm, const u8 *key,
> -			     unsigned int keylen)
> -{
> -	int ret;
> -	struct p8_aes_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	preempt_disable();
> -	pagefault_disable();
> -	enable_kernel_vsx();
> -	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
> -	ret += aes_p8_set_decrypt_key(key, keylen * 8, &ctx->dec_key);
> -	disable_kernel_vsx();
> -	pagefault_enable();
> -	preempt_enable();
> -
> -	ret += crypto_skcipher_setkey(ctx->fallback, key, keylen);
> -	return ret;
> -}
> -
> -static int p8_aes_cbc_encrypt(struct blkcipher_desc *desc,
> -			      struct scatterlist *dst,
> -			      struct scatterlist *src, unsigned int nbytes)
> -{
> -	int ret;
> -	struct blkcipher_walk walk;
> -	struct p8_aes_cbc_ctx *ctx =
> -		crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
> -
> -	if (in_interrupt()) {
> -		SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback);
> -		skcipher_request_set_tfm(req, ctx->fallback);
> -		skcipher_request_set_callback(req, desc->flags, NULL, NULL);
> -		skcipher_request_set_crypt(req, src, dst, nbytes, desc->info);
> -		ret = crypto_skcipher_encrypt(req);
> -		skcipher_request_zero(req);
> -	} else {
> -		preempt_disable();
> -		pagefault_disable();
> -		enable_kernel_vsx();
> -
> -		blkcipher_walk_init(&walk, dst, src, nbytes);
> -		ret = blkcipher_walk_virt(desc, &walk);
> -		while ((nbytes = walk.nbytes)) {
> -			aes_p8_cbc_encrypt(walk.src.virt.addr,
> -					   walk.dst.virt.addr,
> -					   nbytes & AES_BLOCK_MASK,
> -					   &ctx->enc_key, walk.iv, 1);
> -			nbytes &= AES_BLOCK_SIZE - 1;
> -			ret = blkcipher_walk_done(desc, &walk, nbytes);
> -		}
> -
> -		disable_kernel_vsx();
> -		pagefault_enable();
> -		preempt_enable();
> -	}
> -
> -	return ret;
> -}
> -
> -static int p8_aes_cbc_decrypt(struct blkcipher_desc *desc,
> -			      struct scatterlist *dst,
> -			      struct scatterlist *src, unsigned int nbytes)
> -{
> -	int ret;
> -	struct blkcipher_walk walk;
> -	struct p8_aes_cbc_ctx *ctx =
> -		crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
> -
> -	if (in_interrupt()) {
> -		SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback);
> -		skcipher_request_set_tfm(req, ctx->fallback);
> -		skcipher_request_set_callback(req, desc->flags, NULL, NULL);
> -		skcipher_request_set_crypt(req, src, dst, nbytes, desc->info);
> -		ret = crypto_skcipher_decrypt(req);
> -		skcipher_request_zero(req);
> -	} else {
> -		preempt_disable();
> -		pagefault_disable();
> -		enable_kernel_vsx();
> -
> -		blkcipher_walk_init(&walk, dst, src, nbytes);
> -		ret = blkcipher_walk_virt(desc, &walk);
> -		while ((nbytes = walk.nbytes)) {
> -			aes_p8_cbc_encrypt(walk.src.virt.addr,
> -					   walk.dst.virt.addr,
> -					   nbytes & AES_BLOCK_MASK,
> -					   &ctx->dec_key, walk.iv, 0);
> -			nbytes &= AES_BLOCK_SIZE - 1;
> -			ret = blkcipher_walk_done(desc, &walk, nbytes);
> -		}
> -
> -		disable_kernel_vsx();
> -		pagefault_enable();
> -		preempt_enable();
> -	}
> -
> -	return ret;
> -}
> -
> -
> -struct crypto_alg p8_aes_cbc_alg = {
> -	.cra_name = "cbc(aes)",
> -	.cra_driver_name = "p8_aes_cbc",
> -	.cra_module = THIS_MODULE,
> -	.cra_priority = 2000,
> -	.cra_type = &crypto_blkcipher_type,
> -	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
> -	.cra_alignmask = 0,
> -	.cra_blocksize = AES_BLOCK_SIZE,
> -	.cra_ctxsize = sizeof(struct p8_aes_cbc_ctx),
> -	.cra_init = p8_aes_cbc_init,
> -	.cra_exit = p8_aes_cbc_exit,
> -	.cra_blkcipher = {
> -			  .ivsize = AES_BLOCK_SIZE,
> -			  .min_keysize = AES_MIN_KEY_SIZE,
> -			  .max_keysize = AES_MAX_KEY_SIZE,
> -			  .setkey = p8_aes_cbc_setkey,
> -			  .encrypt = p8_aes_cbc_encrypt,
> -			  .decrypt = p8_aes_cbc_decrypt,
> -	},
> -};
> diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c
> deleted file mode 100644
> index 7cf6d31c1123..000000000000
> --- a/drivers/crypto/vmx/aes_ctr.c
> +++ /dev/null
> @@ -1,191 +0,0 @@
> -/**
> - * AES CTR routines supporting VMX instructions on the Power 8
> - *
> - * Copyright (C) 2015 International Business Machines Inc.
> - *
> - * 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; version 2 only.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - * Author: Marcelo Henrique Cerri <mhcerri@xxxxxxxxxx>
> - */
> -
> -#include <linux/types.h>
> -#include <linux/err.h>
> -#include <linux/crypto.h>
> -#include <linux/delay.h>
> -#include <linux/hardirq.h>
> -#include <asm/switch_to.h>
> -#include <crypto/aes.h>
> -#include <crypto/scatterwalk.h>
> -#include "aesp8-ppc.h"
> -
> -struct p8_aes_ctr_ctx {
> -	struct crypto_blkcipher *fallback;
> -	struct aes_key enc_key;
> -};
> -
> -static int p8_aes_ctr_init(struct crypto_tfm *tfm)
> -{
> -	const char *alg;
> -	struct crypto_blkcipher *fallback;
> -	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (!(alg = crypto_tfm_alg_name(tfm))) {
> -		printk(KERN_ERR "Failed to get algorithm name.\n");
> -		return -ENOENT;
> -	}
> -
> -	fallback =
> -	    crypto_alloc_blkcipher(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
> -	if (IS_ERR(fallback)) {
> -		printk(KERN_ERR
> -		       "Failed to allocate transformation for '%s': %ld\n",
> -		       alg, PTR_ERR(fallback));
> -		return PTR_ERR(fallback);
> -	}
> -	printk(KERN_INFO "Using '%s' as fallback implementation.\n",
> -	       crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback));
> -
> -	crypto_blkcipher_set_flags(
> -		fallback,
> -		crypto_blkcipher_get_flags((struct crypto_blkcipher *)tfm));
> -	ctx->fallback = fallback;
> -
> -	return 0;
> -}
> -
> -static void p8_aes_ctr_exit(struct crypto_tfm *tfm)
> -{
> -	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (ctx->fallback) {
> -		crypto_free_blkcipher(ctx->fallback);
> -		ctx->fallback = NULL;
> -	}
> -}
> -
> -static int p8_aes_ctr_setkey(struct crypto_tfm *tfm, const u8 *key,
> -			     unsigned int keylen)
> -{
> -	int ret;
> -	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	preempt_disable();
> -	pagefault_disable();
> -	enable_kernel_vsx();
> -	ret = aes_p8_set_encrypt_key(key, keylen * 8, &ctx->enc_key);
> -	disable_kernel_vsx();
> -	pagefault_enable();
> -	preempt_enable();
> -
> -	ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
> -	return ret;
> -}
> -
> -static void p8_aes_ctr_final(struct p8_aes_ctr_ctx *ctx,
> -			     struct blkcipher_walk *walk)
> -{
> -	u8 *ctrblk = walk->iv;
> -	u8 keystream[AES_BLOCK_SIZE];
> -	u8 *src = walk->src.virt.addr;
> -	u8 *dst = walk->dst.virt.addr;
> -	unsigned int nbytes = walk->nbytes;
> -
> -	preempt_disable();
> -	pagefault_disable();
> -	enable_kernel_vsx();
> -	aes_p8_encrypt(ctrblk, keystream, &ctx->enc_key);
> -	disable_kernel_vsx();
> -	pagefault_enable();
> -	preempt_enable();
> -
> -	crypto_xor(keystream, src, nbytes);
> -	memcpy(dst, keystream, nbytes);
> -	crypto_inc(ctrblk, AES_BLOCK_SIZE);
> -}
> -
> -static int p8_aes_ctr_crypt(struct blkcipher_desc *desc,
> -			    struct scatterlist *dst,
> -			    struct scatterlist *src, unsigned int nbytes)
> -{
> -	int ret;
> -	u64 inc;
> -	struct blkcipher_walk walk;
> -	struct p8_aes_ctr_ctx *ctx =
> -		crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
> -	struct blkcipher_desc fallback_desc = {
> -		.tfm = ctx->fallback,
> -		.info = desc->info,
> -		.flags = desc->flags
> -	};
> -
> -	if (in_interrupt()) {
> -		ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src,
> -					       nbytes);
> -	} else {
> -		blkcipher_walk_init(&walk, dst, src, nbytes);
> -		ret = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
> -		while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
> -			preempt_disable();
> -			pagefault_disable();
> -			enable_kernel_vsx();
> -			aes_p8_ctr32_encrypt_blocks(walk.src.virt.addr,
> -						    walk.dst.virt.addr,
> -						    (nbytes &
> -						     AES_BLOCK_MASK) /
> -						    AES_BLOCK_SIZE,
> -						    &ctx->enc_key,
> -						    walk.iv);
> -			disable_kernel_vsx();
> -			pagefault_enable();
> -			preempt_enable();
> -
> -			/* We need to update IV mostly for last bytes/round */
> -			inc = (nbytes & AES_BLOCK_MASK) / AES_BLOCK_SIZE;
> -			if (inc > 0)
> -				while (inc--)
> -					crypto_inc(walk.iv, AES_BLOCK_SIZE);
> -
> -			nbytes &= AES_BLOCK_SIZE - 1;
> -			ret = blkcipher_walk_done(desc, &walk, nbytes);
> -		}
> -		if (walk.nbytes) {
> -			p8_aes_ctr_final(ctx, &walk);
> -			ret = blkcipher_walk_done(desc, &walk, 0);
> -		}
> -	}
> -
> -	return ret;
> -}
> -
> -struct crypto_alg p8_aes_ctr_alg = {
> -	.cra_name = "ctr(aes)",
> -	.cra_driver_name = "p8_aes_ctr",
> -	.cra_module = THIS_MODULE,
> -	.cra_priority = 2000,
> -	.cra_type = &crypto_blkcipher_type,
> -	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
> -	.cra_alignmask = 0,
> -	.cra_blocksize = 1,
> -	.cra_ctxsize = sizeof(struct p8_aes_ctr_ctx),
> -	.cra_init = p8_aes_ctr_init,
> -	.cra_exit = p8_aes_ctr_exit,
> -	.cra_blkcipher = {
> -			  .ivsize = AES_BLOCK_SIZE,
> -			  .min_keysize = AES_MIN_KEY_SIZE,
> -			  .max_keysize = AES_MAX_KEY_SIZE,
> -			  .setkey = p8_aes_ctr_setkey,
> -			  .encrypt = p8_aes_ctr_crypt,
> -			  .decrypt = p8_aes_ctr_crypt,
> -	},
> -};
> diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c
> deleted file mode 100644
> index 6adc9290557a..000000000000
> --- a/drivers/crypto/vmx/aes_xts.c
> +++ /dev/null
> @@ -1,190 +0,0 @@
> -/**
> - * AES XTS routines supporting VMX In-core instructions on Power 8
> - *
> - * Copyright (C) 2015 International Business Machines Inc.
> - *
> - * 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 Foundations; version 2 only.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY of FITNESS FOR A PARTICUPAR PURPOSE. See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - * Author: Leonidas S. Barbosa <leosilva@xxxxxxxxxxxxxxxxxx>
> - */
> -
> -#include <linux/types.h>
> -#include <linux/err.h>
> -#include <linux/crypto.h>
> -#include <linux/delay.h>
> -#include <linux/hardirq.h>
> -#include <asm/switch_to.h>
> -#include <crypto/aes.h>
> -#include <crypto/scatterwalk.h>
> -#include <crypto/xts.h>
> -#include <crypto/skcipher.h>
> -
> -#include "aesp8-ppc.h"
> -
> -struct p8_aes_xts_ctx {
> -	struct crypto_skcipher *fallback;
> -	struct aes_key enc_key;
> -	struct aes_key dec_key;
> -	struct aes_key tweak_key;
> -};
> -
> -static int p8_aes_xts_init(struct crypto_tfm *tfm)
> -{
> -	const char *alg;
> -	struct crypto_skcipher *fallback;
> -	struct p8_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (!(alg = crypto_tfm_alg_name(tfm))) {
> -		printk(KERN_ERR "Failed to get algorithm name.\n");
> -		return -ENOENT;
> -	}
> -
> -	fallback = crypto_alloc_skcipher(alg, 0,
> -			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
> -	if (IS_ERR(fallback)) {
> -		printk(KERN_ERR
> -			"Failed to allocate transformation for '%s': %ld\n",
> -			alg, PTR_ERR(fallback));
> -		return PTR_ERR(fallback);
> -	}
> -	printk(KERN_INFO "Using '%s' as fallback implementation.\n",
> -		crypto_skcipher_driver_name(fallback));
> -
> -	crypto_skcipher_set_flags(
> -		fallback,
> -		crypto_skcipher_get_flags((struct crypto_skcipher *)tfm));
> -	ctx->fallback = fallback;
> -
> -	return 0;
> -}
> -
> -static void p8_aes_xts_exit(struct crypto_tfm *tfm)
> -{
> -	struct p8_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (ctx->fallback) {
> -		crypto_free_skcipher(ctx->fallback);
> -		ctx->fallback = NULL;
> -	}
> -}
> -
> -static int p8_aes_xts_setkey(struct crypto_tfm *tfm, const u8 *key,
> -			     unsigned int keylen)
> -{
> -	int ret;
> -	struct p8_aes_xts_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	ret = xts_check_key(tfm, key, keylen);
> -	if (ret)
> -		return ret;
> -
> -	preempt_disable();
> -	pagefault_disable();
> -	enable_kernel_vsx();
> -	ret = aes_p8_set_encrypt_key(key + keylen/2, (keylen/2) * 8, &ctx->tweak_key);
> -	ret += aes_p8_set_encrypt_key(key, (keylen/2) * 8, &ctx->enc_key);
> -	ret += aes_p8_set_decrypt_key(key, (keylen/2) * 8, &ctx->dec_key);
> -	disable_kernel_vsx();
> -	pagefault_enable();
> -	preempt_enable();
> -
> -	ret += crypto_skcipher_setkey(ctx->fallback, key, keylen);
> -	return ret;
> -}
> -
> -static int p8_aes_xts_crypt(struct blkcipher_desc *desc,
> -			    struct scatterlist *dst,
> -			    struct scatterlist *src,
> -			    unsigned int nbytes, int enc)
> -{
> -	int ret;
> -	u8 tweak[AES_BLOCK_SIZE];
> -	u8 *iv;
> -	struct blkcipher_walk walk;
> -	struct p8_aes_xts_ctx *ctx =
> -		crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
> -
> -	if (in_interrupt()) {
> -		SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback);
> -		skcipher_request_set_tfm(req, ctx->fallback);
> -		skcipher_request_set_callback(req, desc->flags, NULL, NULL);
> -		skcipher_request_set_crypt(req, src, dst, nbytes, desc->info);
> -		ret = enc? crypto_skcipher_encrypt(req) : crypto_skcipher_decrypt(req);
> -		skcipher_request_zero(req);
> -	} else {
> -		preempt_disable();
> -		pagefault_disable();
> -		enable_kernel_vsx();
> -
> -		blkcipher_walk_init(&walk, dst, src, nbytes);
> -
> -		ret = blkcipher_walk_virt(desc, &walk);
> -		iv = walk.iv;
> -		memset(tweak, 0, AES_BLOCK_SIZE);
> -		aes_p8_encrypt(iv, tweak, &ctx->tweak_key);
> -
> -		while ((nbytes = walk.nbytes)) {
> -			if (enc)
> -				aes_p8_xts_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
> -						nbytes & AES_BLOCK_MASK, &ctx->enc_key, NULL, tweak);
> -			else
> -				aes_p8_xts_decrypt(walk.src.virt.addr, walk.dst.virt.addr,
> -						nbytes & AES_BLOCK_MASK, &ctx->dec_key, NULL, tweak);
> -
> -			nbytes &= AES_BLOCK_SIZE - 1;
> -			ret = blkcipher_walk_done(desc, &walk, nbytes);
> -		}
> -
> -		disable_kernel_vsx();
> -		pagefault_enable();
> -		preempt_enable();
> -	}
> -	return ret;
> -}
> -
> -static int p8_aes_xts_encrypt(struct blkcipher_desc *desc,
> -			      struct scatterlist *dst,
> -			      struct scatterlist *src, unsigned int nbytes)
> -{
> -	return p8_aes_xts_crypt(desc, dst, src, nbytes, 1);
> -}
> -
> -static int p8_aes_xts_decrypt(struct blkcipher_desc *desc,
> -			      struct scatterlist *dst,
> -			      struct scatterlist *src, unsigned int nbytes)
> -{
> -	return p8_aes_xts_crypt(desc, dst, src, nbytes, 0);
> -}
> -
> -struct crypto_alg p8_aes_xts_alg = {
> -	.cra_name = "xts(aes)",
> -	.cra_driver_name = "p8_aes_xts",
> -	.cra_module = THIS_MODULE,
> -	.cra_priority = 2000,
> -	.cra_type = &crypto_blkcipher_type,
> -	.cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER | CRYPTO_ALG_NEED_FALLBACK,
> -	.cra_alignmask = 0,
> -	.cra_blocksize = AES_BLOCK_SIZE,
> -	.cra_ctxsize = sizeof(struct p8_aes_xts_ctx),
> -	.cra_init = p8_aes_xts_init,
> -	.cra_exit = p8_aes_xts_exit,
> -	.cra_blkcipher = {
> -			.ivsize = AES_BLOCK_SIZE,
> -			.min_keysize = 2 * AES_MIN_KEY_SIZE,
> -			.max_keysize = 2 * AES_MAX_KEY_SIZE,
> -			.setkey	 = p8_aes_xts_setkey,
> -			.encrypt = p8_aes_xts_encrypt,
> -			.decrypt = p8_aes_xts_decrypt,
> -	}
> -};
> diff --git a/drivers/crypto/vmx/aesp8-ppc.h b/drivers/crypto/vmx/aesp8-ppc.h
> deleted file mode 100644
> index 01972e16a6c0..000000000000
> --- a/drivers/crypto/vmx/aesp8-ppc.h
> +++ /dev/null
> @@ -1,25 +0,0 @@
> -#include <linux/types.h>
> -#include <crypto/aes.h>
> -
> -#define AES_BLOCK_MASK  (~(AES_BLOCK_SIZE-1))
> -
> -struct aes_key {
> -	u8 key[AES_MAX_KEYLENGTH];
> -	int rounds;
> -};
> -
> -int aes_p8_set_encrypt_key(const u8 *userKey, const int bits,
> -			   struct aes_key *key);
> -int aes_p8_set_decrypt_key(const u8 *userKey, const int bits,
> -			   struct aes_key *key);
> -void aes_p8_encrypt(const u8 *in, u8 *out, const struct aes_key *key);
> -void aes_p8_decrypt(const u8 *in, u8 *out, const struct aes_key *key);
> -void aes_p8_cbc_encrypt(const u8 *in, u8 *out, size_t len,
> -			const struct aes_key *key, u8 *iv, const int enc);
> -void aes_p8_ctr32_encrypt_blocks(const u8 *in, u8 *out,
> -				 size_t len, const struct aes_key *key,
> -				 const u8 *iv);
> -void aes_p8_xts_encrypt(const u8 *in, u8 *out, size_t len,
> -			const struct aes_key *key1, const struct aes_key *key2, u8 *iv);
> -void aes_p8_xts_decrypt(const u8 *in, u8 *out, size_t len,
> -			const struct aes_key *key1, const struct aes_key *key2, u8 *iv);
> diff --git a/drivers/crypto/vmx/aesp8-ppc.pl b/drivers/crypto/vmx/aesp8-ppc.pl
> deleted file mode 100644
> index 0b4a293b8a1e..000000000000
> --- a/drivers/crypto/vmx/aesp8-ppc.pl
> +++ /dev/null
> @@ -1,3789 +0,0 @@
> -#! /usr/bin/env perl
> -# Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
> -#
> -# Licensed under the OpenSSL license (the "License").  You may not use
> -# this file except in compliance with the License.  You can obtain a copy
> -# in the file LICENSE in the source distribution or at
> -# https://www.openssl.org/source/license.html
> -
> -#
> -# ====================================================================
> -# Written by Andy Polyakov <appro@xxxxxxxxxxx> for the OpenSSL
> -# project. The module is, however, dual licensed under OpenSSL and
> -# CRYPTOGAMS licenses depending on where you obtain it. For further
> -# details see http://www.openssl.org/~appro/cryptogams/.
> -# ====================================================================
> -#
> -# This module implements support for AES instructions as per PowerISA
> -# specification version 2.07, first implemented by POWER8 processor.
> -# The module is endian-agnostic in sense that it supports both big-
> -# and little-endian cases. Data alignment in parallelizable modes is
> -# handled with VSX loads and stores, which implies MSR.VSX flag being
> -# set. It should also be noted that ISA specification doesn't prohibit
> -# alignment exceptions for these instructions on page boundaries.
> -# Initially alignment was handled in pure AltiVec/VMX way [when data
> -# is aligned programmatically, which in turn guarantees exception-
> -# free execution], but it turned to hamper performance when vcipher
> -# instructions are interleaved. It's reckoned that eventual
> -# misalignment penalties at page boundaries are in average lower
> -# than additional overhead in pure AltiVec approach.
> -#
> -# May 2016
> -#
> -# Add XTS subroutine, 9x on little- and 12x improvement on big-endian
> -# systems were measured.
> -#
> -######################################################################
> -# Current large-block performance in cycles per byte processed with
> -# 128-bit key (less is better).
> -#
> -#		CBC en-/decrypt	CTR	XTS
> -# POWER8[le]	3.96/0.72	0.74	1.1
> -# POWER8[be]	3.75/0.65	0.66	1.0
> -
> -$flavour = shift;
> -
> -if ($flavour =~ /64/) {
> -	$SIZE_T	=8;
> -	$LRSAVE	=2*$SIZE_T;
> -	$STU	="stdu";
> -	$POP	="ld";
> -	$PUSH	="std";
> -	$UCMP	="cmpld";
> -	$SHL	="sldi";
> -} elsif ($flavour =~ /32/) {
> -	$SIZE_T	=4;
> -	$LRSAVE	=$SIZE_T;
> -	$STU	="stwu";
> -	$POP	="lwz";
> -	$PUSH	="stw";
> -	$UCMP	="cmplw";
> -	$SHL	="slwi";
> -} else { die "nonsense $flavour"; }
> -
> -$LITTLE_ENDIAN = ($flavour=~/le$/) ? $SIZE_T : 0;
> -
> -$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
> -( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
> -( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
> -die "can't locate ppc-xlate.pl";
> -
> -open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
> -
> -$FRAME=8*$SIZE_T;
> -$prefix="aes_p8";
> -
> -$sp="r1";
> -$vrsave="r12";
> -
> -#########################################################################
> -{{{	# Key setup procedures						#
> -my ($inp,$bits,$out,$ptr,$cnt,$rounds)=map("r$_",(3..8));
> -my ($zero,$in0,$in1,$key,$rcon,$mask,$tmp)=map("v$_",(0..6));
> -my ($stage,$outperm,$outmask,$outhead,$outtail)=map("v$_",(7..11));
> -
> -$code.=<<___;
> -.machine	"any"
> -
> -.text
> -
> -.align	7
> -rcon:
> -.long	0x01000000, 0x01000000, 0x01000000, 0x01000000	?rev
> -.long	0x1b000000, 0x1b000000, 0x1b000000, 0x1b000000	?rev
> -.long	0x0d0e0f0c, 0x0d0e0f0c, 0x0d0e0f0c, 0x0d0e0f0c	?rev
> -.long	0,0,0,0						?asis
> -Lconsts:
> -	mflr	r0
> -	bcl	20,31,\$+4
> -	mflr	$ptr	 #vvvvv "distance between . and rcon
> -	addi	$ptr,$ptr,-0x48
> -	mtlr	r0
> -	blr
> -	.long	0
> -	.byte	0,12,0x14,0,0,0,0,0
> -.asciz	"AES for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>"
> -
> -.globl	.${prefix}_set_encrypt_key
> -Lset_encrypt_key:
> -	mflr		r11
> -	$PUSH		r11,$LRSAVE($sp)
> -
> -	li		$ptr,-1
> -	${UCMP}i	$inp,0
> -	beq-		Lenc_key_abort		# if ($inp==0) return -1;
> -	${UCMP}i	$out,0
> -	beq-		Lenc_key_abort		# if ($out==0) return -1;
> -	li		$ptr,-2
> -	cmpwi		$bits,128
> -	blt-		Lenc_key_abort
> -	cmpwi		$bits,256
> -	bgt-		Lenc_key_abort
> -	andi.		r0,$bits,0x3f
> -	bne-		Lenc_key_abort
> -
> -	lis		r0,0xfff0
> -	mfspr		$vrsave,256
> -	mtspr		256,r0
> -
> -	bl		Lconsts
> -	mtlr		r11
> -
> -	neg		r9,$inp
> -	lvx		$in0,0,$inp
> -	addi		$inp,$inp,15		# 15 is not typo
> -	lvsr		$key,0,r9		# borrow $key
> -	li		r8,0x20
> -	cmpwi		$bits,192
> -	lvx		$in1,0,$inp
> -	le?vspltisb	$mask,0x0f		# borrow $mask
> -	lvx		$rcon,0,$ptr
> -	le?vxor		$key,$key,$mask		# adjust for byte swap
> -	lvx		$mask,r8,$ptr
> -	addi		$ptr,$ptr,0x10
> -	vperm		$in0,$in0,$in1,$key	# align [and byte swap in LE]
> -	li		$cnt,8
> -	vxor		$zero,$zero,$zero
> -	mtctr		$cnt
> -
> -	?lvsr		$outperm,0,$out
> -	vspltisb	$outmask,-1
> -	lvx		$outhead,0,$out
> -	?vperm		$outmask,$zero,$outmask,$outperm
> -
> -	blt		Loop128
> -	addi		$inp,$inp,8
> -	beq		L192
> -	addi		$inp,$inp,8
> -	b		L256
> -
> -.align	4
> -Loop128:
> -	vperm		$key,$in0,$in0,$mask	# rotate-n-splat
> -	vsldoi		$tmp,$zero,$in0,12	# >>32
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	vcipherlast	$key,$key,$rcon
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	 vadduwm	$rcon,$rcon,$rcon
> -	vxor		$in0,$in0,$key
> -	bdnz		Loop128
> -
> -	lvx		$rcon,0,$ptr		# last two round keys
> -
> -	vperm		$key,$in0,$in0,$mask	# rotate-n-splat
> -	vsldoi		$tmp,$zero,$in0,12	# >>32
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	vcipherlast	$key,$key,$rcon
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	 vadduwm	$rcon,$rcon,$rcon
> -	vxor		$in0,$in0,$key
> -
> -	vperm		$key,$in0,$in0,$mask	# rotate-n-splat
> -	vsldoi		$tmp,$zero,$in0,12	# >>32
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	vcipherlast	$key,$key,$rcon
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	vxor		$in0,$in0,$key
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	 stvx		$stage,0,$out
> -
> -	addi		$inp,$out,15		# 15 is not typo
> -	addi		$out,$out,0x50
> -
> -	li		$rounds,10
> -	b		Ldone
> -
> -.align	4
> -L192:
> -	lvx		$tmp,0,$inp
> -	li		$cnt,4
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -	vperm		$in1,$in1,$tmp,$key	# align [and byte swap in LE]
> -	vspltisb	$key,8			# borrow $key
> -	mtctr		$cnt
> -	vsububm		$mask,$mask,$key	# adjust the mask
> -
> -Loop192:
> -	vperm		$key,$in1,$in1,$mask	# roate-n-splat
> -	vsldoi		$tmp,$zero,$in0,12	# >>32
> -	vcipherlast	$key,$key,$rcon
> -
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -
> -	 vsldoi		$stage,$zero,$in1,8
> -	vspltw		$tmp,$in0,3
> -	vxor		$tmp,$tmp,$in1
> -	vsldoi		$in1,$zero,$in1,12	# >>32
> -	 vadduwm	$rcon,$rcon,$rcon
> -	vxor		$in1,$in1,$tmp
> -	vxor		$in0,$in0,$key
> -	vxor		$in1,$in1,$key
> -	 vsldoi		$stage,$stage,$in0,8
> -
> -	vperm		$key,$in1,$in1,$mask	# rotate-n-splat
> -	vsldoi		$tmp,$zero,$in0,12	# >>32
> -	 vperm		$outtail,$stage,$stage,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	vcipherlast	$key,$key,$rcon
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -
> -	 vsldoi		$stage,$in0,$in1,8
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	 vperm		$outtail,$stage,$stage,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -
> -	vspltw		$tmp,$in0,3
> -	vxor		$tmp,$tmp,$in1
> -	vsldoi		$in1,$zero,$in1,12	# >>32
> -	 vadduwm	$rcon,$rcon,$rcon
> -	vxor		$in1,$in1,$tmp
> -	vxor		$in0,$in0,$key
> -	vxor		$in1,$in1,$key
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	 stvx		$stage,0,$out
> -	 addi		$inp,$out,15		# 15 is not typo
> -	 addi		$out,$out,16
> -	bdnz		Loop192
> -
> -	li		$rounds,12
> -	addi		$out,$out,0x20
> -	b		Ldone
> -
> -.align	4
> -L256:
> -	lvx		$tmp,0,$inp
> -	li		$cnt,7
> -	li		$rounds,14
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -	vperm		$in1,$in1,$tmp,$key	# align [and byte swap in LE]
> -	mtctr		$cnt
> -
> -Loop256:
> -	vperm		$key,$in1,$in1,$mask	# rotate-n-splat
> -	vsldoi		$tmp,$zero,$in0,12	# >>32
> -	 vperm		$outtail,$in1,$in1,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	vcipherlast	$key,$key,$rcon
> -	 stvx		$stage,0,$out
> -	 addi		$out,$out,16
> -
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in0,$in0,$tmp
> -	 vadduwm	$rcon,$rcon,$rcon
> -	vxor		$in0,$in0,$key
> -	 vperm		$outtail,$in0,$in0,$outperm	# rotate
> -	 vsel		$stage,$outhead,$outtail,$outmask
> -	 vmr		$outhead,$outtail
> -	 stvx		$stage,0,$out
> -	 addi		$inp,$out,15		# 15 is not typo
> -	 addi		$out,$out,16
> -	bdz		Ldone
> -
> -	vspltw		$key,$in0,3		# just splat
> -	vsldoi		$tmp,$zero,$in1,12	# >>32
> -	vsbox		$key,$key
> -
> -	vxor		$in1,$in1,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in1,$in1,$tmp
> -	vsldoi		$tmp,$zero,$tmp,12	# >>32
> -	vxor		$in1,$in1,$tmp
> -
> -	vxor		$in1,$in1,$key
> -	b		Loop256
> -
> -.align	4
> -Ldone:
> -	lvx		$in1,0,$inp		# redundant in aligned case
> -	vsel		$in1,$outhead,$in1,$outmask
> -	stvx		$in1,0,$inp
> -	li		$ptr,0
> -	mtspr		256,$vrsave
> -	stw		$rounds,0($out)
> -
> -Lenc_key_abort:
> -	mr		r3,$ptr
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,1,0,0,3,0
> -	.long		0
> -.size	.${prefix}_set_encrypt_key,.-.${prefix}_set_encrypt_key
> -
> -.globl	.${prefix}_set_decrypt_key
> -	$STU		$sp,-$FRAME($sp)
> -	mflr		r10
> -	$PUSH		r10,$FRAME+$LRSAVE($sp)
> -	bl		Lset_encrypt_key
> -	mtlr		r10
> -
> -	cmpwi		r3,0
> -	bne-		Ldec_key_abort
> -
> -	slwi		$cnt,$rounds,4
> -	subi		$inp,$out,240		# first round key
> -	srwi		$rounds,$rounds,1
> -	add		$out,$inp,$cnt		# last round key
> -	mtctr		$rounds
> -
> -Ldeckey:
> -	lwz		r0, 0($inp)
> -	lwz		r6, 4($inp)
> -	lwz		r7, 8($inp)
> -	lwz		r8, 12($inp)
> -	addi		$inp,$inp,16
> -	lwz		r9, 0($out)
> -	lwz		r10,4($out)
> -	lwz		r11,8($out)
> -	lwz		r12,12($out)
> -	stw		r0, 0($out)
> -	stw		r6, 4($out)
> -	stw		r7, 8($out)
> -	stw		r8, 12($out)
> -	subi		$out,$out,16
> -	stw		r9, -16($inp)
> -	stw		r10,-12($inp)
> -	stw		r11,-8($inp)
> -	stw		r12,-4($inp)
> -	bdnz		Ldeckey
> -
> -	xor		r3,r3,r3		# return value
> -Ldec_key_abort:
> -	addi		$sp,$sp,$FRAME
> -	blr
> -	.long		0
> -	.byte		0,12,4,1,0x80,0,3,0
> -	.long		0
> -.size	.${prefix}_set_decrypt_key,.-.${prefix}_set_decrypt_key
> -___
> -}}}
> -#########################################################################
> -{{{	# Single block en- and decrypt procedures			#
> -sub gen_block () {
> -my $dir = shift;
> -my $n   = $dir eq "de" ? "n" : "";
> -my ($inp,$out,$key,$rounds,$idx)=map("r$_",(3..7));
> -
> -$code.=<<___;
> -.globl	.${prefix}_${dir}crypt
> -	lwz		$rounds,240($key)
> -	lis		r0,0xfc00
> -	mfspr		$vrsave,256
> -	li		$idx,15			# 15 is not typo
> -	mtspr		256,r0
> -
> -	lvx		v0,0,$inp
> -	neg		r11,$out
> -	lvx		v1,$idx,$inp
> -	lvsl		v2,0,$inp		# inpperm
> -	le?vspltisb	v4,0x0f
> -	?lvsl		v3,0,r11		# outperm
> -	le?vxor		v2,v2,v4
> -	li		$idx,16
> -	vperm		v0,v0,v1,v2		# align [and byte swap in LE]
> -	lvx		v1,0,$key
> -	?lvsl		v5,0,$key		# keyperm
> -	srwi		$rounds,$rounds,1
> -	lvx		v2,$idx,$key
> -	addi		$idx,$idx,16
> -	subi		$rounds,$rounds,1
> -	?vperm		v1,v1,v2,v5		# align round key
> -
> -	vxor		v0,v0,v1
> -	lvx		v1,$idx,$key
> -	addi		$idx,$idx,16
> -	mtctr		$rounds
> -
> -Loop_${dir}c:
> -	?vperm		v2,v2,v1,v5
> -	v${n}cipher	v0,v0,v2
> -	lvx		v2,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		v1,v1,v2,v5
> -	v${n}cipher	v0,v0,v1
> -	lvx		v1,$idx,$key
> -	addi		$idx,$idx,16
> -	bdnz		Loop_${dir}c
> -
> -	?vperm		v2,v2,v1,v5
> -	v${n}cipher	v0,v0,v2
> -	lvx		v2,$idx,$key
> -	?vperm		v1,v1,v2,v5
> -	v${n}cipherlast	v0,v0,v1
> -
> -	vspltisb	v2,-1
> -	vxor		v1,v1,v1
> -	li		$idx,15			# 15 is not typo
> -	?vperm		v2,v1,v2,v3		# outmask
> -	le?vxor		v3,v3,v4
> -	lvx		v1,0,$out		# outhead
> -	vperm		v0,v0,v0,v3		# rotate [and byte swap in LE]
> -	vsel		v1,v1,v0,v2
> -	lvx		v4,$idx,$out
> -	stvx		v1,0,$out
> -	vsel		v0,v0,v4,v2
> -	stvx		v0,$idx,$out
> -
> -	mtspr		256,$vrsave
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0,0,3,0
> -	.long		0
> -.size	.${prefix}_${dir}crypt,.-.${prefix}_${dir}crypt
> -___
> -}
> -&gen_block("en");
> -&gen_block("de");
> -}}}
> -#########################################################################
> -{{{	# CBC en- and decrypt procedures				#
> -my ($inp,$out,$len,$key,$ivp,$enc,$rounds,$idx)=map("r$_",(3..10));
> -my ($rndkey0,$rndkey1,$inout,$tmp)=		map("v$_",(0..3));
> -my ($ivec,$inptail,$inpperm,$outhead,$outperm,$outmask,$keyperm)=
> -						map("v$_",(4..10));
> -$code.=<<___;
> -.globl	.${prefix}_cbc_encrypt
> -	${UCMP}i	$len,16
> -	bltlr-
> -
> -	cmpwi		$enc,0			# test direction
> -	lis		r0,0xffe0
> -	mfspr		$vrsave,256
> -	mtspr		256,r0
> -
> -	li		$idx,15
> -	vxor		$rndkey0,$rndkey0,$rndkey0
> -	le?vspltisb	$tmp,0x0f
> -
> -	lvx		$ivec,0,$ivp		# load [unaligned] iv
> -	lvsl		$inpperm,0,$ivp
> -	lvx		$inptail,$idx,$ivp
> -	le?vxor		$inpperm,$inpperm,$tmp
> -	vperm		$ivec,$ivec,$inptail,$inpperm
> -
> -	neg		r11,$inp
> -	?lvsl		$keyperm,0,$key		# prepare for unaligned key
> -	lwz		$rounds,240($key)
> -
> -	lvsr		$inpperm,0,r11		# prepare for unaligned load
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,15		# 15 is not typo
> -	le?vxor		$inpperm,$inpperm,$tmp
> -
> -	?lvsr		$outperm,0,$out		# prepare for unaligned store
> -	vspltisb	$outmask,-1
> -	lvx		$outhead,0,$out
> -	?vperm		$outmask,$rndkey0,$outmask,$outperm
> -	le?vxor		$outperm,$outperm,$tmp
> -
> -	srwi		$rounds,$rounds,1
> -	li		$idx,16
> -	subi		$rounds,$rounds,1
> -	beq		Lcbc_dec
> -
> -Lcbc_enc:
> -	vmr		$inout,$inptail
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,16
> -	mtctr		$rounds
> -	subi		$len,$len,16		# len-=16
> -
> -	lvx		$rndkey0,0,$key
> -	 vperm		$inout,$inout,$inptail,$inpperm
> -	lvx		$rndkey1,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key
> -	addi		$idx,$idx,16
> -	vxor		$inout,$inout,$ivec
> -
> -Loop_cbc_enc:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipher		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key
> -	addi		$idx,$idx,16
> -	bdnz		Loop_cbc_enc
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key
> -	li		$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipherlast	$ivec,$inout,$rndkey0
> -	${UCMP}i	$len,16
> -
> -	vperm		$tmp,$ivec,$ivec,$outperm
> -	vsel		$inout,$outhead,$tmp,$outmask
> -	vmr		$outhead,$tmp
> -	stvx		$inout,0,$out
> -	addi		$out,$out,16
> -	bge		Lcbc_enc
> -
> -	b		Lcbc_done
> -
> -.align	4
> -Lcbc_dec:
> -	${UCMP}i	$len,128
> -	bge		_aesp8_cbc_decrypt8x
> -	vmr		$tmp,$inptail
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,16
> -	mtctr		$rounds
> -	subi		$len,$len,16		# len-=16
> -
> -	lvx		$rndkey0,0,$key
> -	 vperm		$tmp,$tmp,$inptail,$inpperm
> -	lvx		$rndkey1,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$tmp,$rndkey0
> -	lvx		$rndkey0,$idx,$key
> -	addi		$idx,$idx,16
> -
> -Loop_cbc_dec:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vncipher	$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vncipher	$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key
> -	addi		$idx,$idx,16
> -	bdnz		Loop_cbc_dec
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vncipher	$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key
> -	li		$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vncipherlast	$inout,$inout,$rndkey0
> -	${UCMP}i	$len,16
> -
> -	vxor		$inout,$inout,$ivec
> -	vmr		$ivec,$tmp
> -	vperm		$tmp,$inout,$inout,$outperm
> -	vsel		$inout,$outhead,$tmp,$outmask
> -	vmr		$outhead,$tmp
> -	stvx		$inout,0,$out
> -	addi		$out,$out,16
> -	bge		Lcbc_dec
> -
> -Lcbc_done:
> -	addi		$out,$out,-1
> -	lvx		$inout,0,$out		# redundant in aligned case
> -	vsel		$inout,$outhead,$inout,$outmask
> -	stvx		$inout,0,$out
> -
> -	neg		$enc,$ivp		# write [unaligned] iv
> -	li		$idx,15			# 15 is not typo
> -	vxor		$rndkey0,$rndkey0,$rndkey0
> -	vspltisb	$outmask,-1
> -	le?vspltisb	$tmp,0x0f
> -	?lvsl		$outperm,0,$enc
> -	?vperm		$outmask,$rndkey0,$outmask,$outperm
> -	le?vxor		$outperm,$outperm,$tmp
> -	lvx		$outhead,0,$ivp
> -	vperm		$ivec,$ivec,$ivec,$outperm
> -	vsel		$inout,$outhead,$ivec,$outmask
> -	lvx		$inptail,$idx,$ivp
> -	stvx		$inout,0,$ivp
> -	vsel		$inout,$ivec,$inptail,$outmask
> -	stvx		$inout,$idx,$ivp
> -
> -	mtspr		256,$vrsave
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0,0,6,0
> -	.long		0
> -___
> -#########################################################################
> -{{	# Optimized CBC decrypt procedure				#
> -my $key_="r11";
> -my ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70)=map("r$_",(0,8,26..31));
> -my ($in0, $in1, $in2, $in3, $in4, $in5, $in6, $in7 )=map("v$_",(0..3,10..13));
> -my ($out0,$out1,$out2,$out3,$out4,$out5,$out6,$out7)=map("v$_",(14..21));
> -my $rndkey0="v23";	# v24-v25 rotating buffer for first found keys
> -			# v26-v31 last 6 round keys
> -my ($tmp,$keyperm)=($in3,$in4);	# aliases with "caller", redundant assignment
> -
> -$code.=<<___;
> -.align	5
> -_aesp8_cbc_decrypt8x:
> -	$STU		$sp,-`($FRAME+21*16+6*$SIZE_T)`($sp)
> -	li		r10,`$FRAME+8*16+15`
> -	li		r11,`$FRAME+8*16+31`
> -	stvx		v20,r10,$sp		# ABI says so
> -	addi		r10,r10,32
> -	stvx		v21,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v22,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v23,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v24,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v25,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v26,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v27,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v28,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v29,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v30,r10,$sp
> -	stvx		v31,r11,$sp
> -	li		r0,-1
> -	stw		$vrsave,`$FRAME+21*16-4`($sp)	# save vrsave
> -	li		$x10,0x10
> -	$PUSH		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	li		$x20,0x20
> -	$PUSH		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	li		$x30,0x30
> -	$PUSH		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	li		$x40,0x40
> -	$PUSH		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	li		$x50,0x50
> -	$PUSH		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	li		$x60,0x60
> -	$PUSH		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	li		$x70,0x70
> -	mtspr		256,r0
> -
> -	subi		$rounds,$rounds,3	# -4 in total
> -	subi		$len,$len,128		# bias
> -
> -	lvx		$rndkey0,$x00,$key	# load key schedule
> -	lvx		v30,$x10,$key
> -	addi		$key,$key,0x20
> -	lvx		v31,$x00,$key
> -	?vperm		$rndkey0,$rndkey0,v30,$keyperm
> -	addi		$key_,$sp,$FRAME+15
> -	mtctr		$rounds
> -
> -Load_cbc_dec_key:
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v30,$x10,$key
> -	addi		$key,$key,0x20
> -	stvx		v24,$x00,$key_		# off-load round[1]
> -	?vperm		v25,v31,v30,$keyperm
> -	lvx		v31,$x00,$key
> -	stvx		v25,$x10,$key_		# off-load round[2]
> -	addi		$key_,$key_,0x20
> -	bdnz		Load_cbc_dec_key
> -
> -	lvx		v26,$x10,$key
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v27,$x20,$key
> -	stvx		v24,$x00,$key_		# off-load round[3]
> -	?vperm		v25,v31,v26,$keyperm
> -	lvx		v28,$x30,$key
> -	stvx		v25,$x10,$key_		# off-load round[4]
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	?vperm		v26,v26,v27,$keyperm
> -	lvx		v29,$x40,$key
> -	?vperm		v27,v27,v28,$keyperm
> -	lvx		v30,$x50,$key
> -	?vperm		v28,v28,v29,$keyperm
> -	lvx		v31,$x60,$key
> -	?vperm		v29,v29,v30,$keyperm
> -	lvx		$out0,$x70,$key		# borrow $out0
> -	?vperm		v30,v30,v31,$keyperm
> -	lvx		v24,$x00,$key_		# pre-load round[1]
> -	?vperm		v31,v31,$out0,$keyperm
> -	lvx		v25,$x10,$key_		# pre-load round[2]
> -
> -	#lvx		$inptail,0,$inp		# "caller" already did this
> -	#addi		$inp,$inp,15		# 15 is not typo
> -	subi		$inp,$inp,15		# undo "caller"
> -
> -	 le?li		$idx,8
> -	lvx_u		$in0,$x00,$inp		# load first 8 "words"
> -	 le?lvsl	$inpperm,0,$idx
> -	 le?vspltisb	$tmp,0x0f
> -	lvx_u		$in1,$x10,$inp
> -	 le?vxor	$inpperm,$inpperm,$tmp	# transform for lvx_u/stvx_u
> -	lvx_u		$in2,$x20,$inp
> -	 le?vperm	$in0,$in0,$in0,$inpperm
> -	lvx_u		$in3,$x30,$inp
> -	 le?vperm	$in1,$in1,$in1,$inpperm
> -	lvx_u		$in4,$x40,$inp
> -	 le?vperm	$in2,$in2,$in2,$inpperm
> -	vxor		$out0,$in0,$rndkey0
> -	lvx_u		$in5,$x50,$inp
> -	 le?vperm	$in3,$in3,$in3,$inpperm
> -	vxor		$out1,$in1,$rndkey0
> -	lvx_u		$in6,$x60,$inp
> -	 le?vperm	$in4,$in4,$in4,$inpperm
> -	vxor		$out2,$in2,$rndkey0
> -	lvx_u		$in7,$x70,$inp
> -	addi		$inp,$inp,0x80
> -	 le?vperm	$in5,$in5,$in5,$inpperm
> -	vxor		$out3,$in3,$rndkey0
> -	 le?vperm	$in6,$in6,$in6,$inpperm
> -	vxor		$out4,$in4,$rndkey0
> -	 le?vperm	$in7,$in7,$in7,$inpperm
> -	vxor		$out5,$in5,$rndkey0
> -	vxor		$out6,$in6,$rndkey0
> -	vxor		$out7,$in7,$rndkey0
> -
> -	mtctr		$rounds
> -	b		Loop_cbc_dec8x
> -.align	5
> -Loop_cbc_dec8x:
> -	vncipher	$out0,$out0,v24
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -	vncipher	$out5,$out5,v24
> -	vncipher	$out6,$out6,v24
> -	vncipher	$out7,$out7,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vncipher	$out0,$out0,v25
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	vncipher	$out5,$out5,v25
> -	vncipher	$out6,$out6,v25
> -	vncipher	$out7,$out7,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_cbc_dec8x
> -
> -	subic		$len,$len,128		# $len-=128
> -	vncipher	$out0,$out0,v24
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -	vncipher	$out5,$out5,v24
> -	vncipher	$out6,$out6,v24
> -	vncipher	$out7,$out7,v24
> -
> -	subfe.		r0,r0,r0		# borrow?-1:0
> -	vncipher	$out0,$out0,v25
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	vncipher	$out5,$out5,v25
> -	vncipher	$out6,$out6,v25
> -	vncipher	$out7,$out7,v25
> -
> -	and		r0,r0,$len
> -	vncipher	$out0,$out0,v26
> -	vncipher	$out1,$out1,v26
> -	vncipher	$out2,$out2,v26
> -	vncipher	$out3,$out3,v26
> -	vncipher	$out4,$out4,v26
> -	vncipher	$out5,$out5,v26
> -	vncipher	$out6,$out6,v26
> -	vncipher	$out7,$out7,v26
> -
> -	add		$inp,$inp,r0		# $inp is adjusted in such
> -						# way that at exit from the
> -						# loop inX-in7 are loaded
> -						# with last "words"
> -	vncipher	$out0,$out0,v27
> -	vncipher	$out1,$out1,v27
> -	vncipher	$out2,$out2,v27
> -	vncipher	$out3,$out3,v27
> -	vncipher	$out4,$out4,v27
> -	vncipher	$out5,$out5,v27
> -	vncipher	$out6,$out6,v27
> -	vncipher	$out7,$out7,v27
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vncipher	$out0,$out0,v28
> -	vncipher	$out1,$out1,v28
> -	vncipher	$out2,$out2,v28
> -	vncipher	$out3,$out3,v28
> -	vncipher	$out4,$out4,v28
> -	vncipher	$out5,$out5,v28
> -	vncipher	$out6,$out6,v28
> -	vncipher	$out7,$out7,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -
> -	vncipher	$out0,$out0,v29
> -	vncipher	$out1,$out1,v29
> -	vncipher	$out2,$out2,v29
> -	vncipher	$out3,$out3,v29
> -	vncipher	$out4,$out4,v29
> -	vncipher	$out5,$out5,v29
> -	vncipher	$out6,$out6,v29
> -	vncipher	$out7,$out7,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -
> -	vncipher	$out0,$out0,v30
> -	 vxor		$ivec,$ivec,v31		# xor with last round key
> -	vncipher	$out1,$out1,v30
> -	 vxor		$in0,$in0,v31
> -	vncipher	$out2,$out2,v30
> -	 vxor		$in1,$in1,v31
> -	vncipher	$out3,$out3,v30
> -	 vxor		$in2,$in2,v31
> -	vncipher	$out4,$out4,v30
> -	 vxor		$in3,$in3,v31
> -	vncipher	$out5,$out5,v30
> -	 vxor		$in4,$in4,v31
> -	vncipher	$out6,$out6,v30
> -	 vxor		$in5,$in5,v31
> -	vncipher	$out7,$out7,v30
> -	 vxor		$in6,$in6,v31
> -
> -	vncipherlast	$out0,$out0,$ivec
> -	vncipherlast	$out1,$out1,$in0
> -	 lvx_u		$in0,$x00,$inp		# load next input block
> -	vncipherlast	$out2,$out2,$in1
> -	 lvx_u		$in1,$x10,$inp
> -	vncipherlast	$out3,$out3,$in2
> -	 le?vperm	$in0,$in0,$in0,$inpperm
> -	 lvx_u		$in2,$x20,$inp
> -	vncipherlast	$out4,$out4,$in3
> -	 le?vperm	$in1,$in1,$in1,$inpperm
> -	 lvx_u		$in3,$x30,$inp
> -	vncipherlast	$out5,$out5,$in4
> -	 le?vperm	$in2,$in2,$in2,$inpperm
> -	 lvx_u		$in4,$x40,$inp
> -	vncipherlast	$out6,$out6,$in5
> -	 le?vperm	$in3,$in3,$in3,$inpperm
> -	 lvx_u		$in5,$x50,$inp
> -	vncipherlast	$out7,$out7,$in6
> -	 le?vperm	$in4,$in4,$in4,$inpperm
> -	 lvx_u		$in6,$x60,$inp
> -	vmr		$ivec,$in7
> -	 le?vperm	$in5,$in5,$in5,$inpperm
> -	 lvx_u		$in7,$x70,$inp
> -	 addi		$inp,$inp,0x80
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	 le?vperm	$in6,$in6,$in6,$inpperm
> -	 vxor		$out0,$in0,$rndkey0
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	 le?vperm	$in7,$in7,$in7,$inpperm
> -	 vxor		$out1,$in1,$rndkey0
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x20,$out
> -	 vxor		$out2,$in2,$rndkey0
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x30,$out
> -	 vxor		$out3,$in3,$rndkey0
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x40,$out
> -	 vxor		$out4,$in4,$rndkey0
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x50,$out
> -	 vxor		$out5,$in5,$rndkey0
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x60,$out
> -	 vxor		$out6,$in6,$rndkey0
> -	stvx_u		$out7,$x70,$out
> -	addi		$out,$out,0x80
> -	 vxor		$out7,$in7,$rndkey0
> -
> -	mtctr		$rounds
> -	beq		Loop_cbc_dec8x		# did $len-=128 borrow?
> -
> -	addic.		$len,$len,128
> -	beq		Lcbc_dec8x_done
> -	nop
> -	nop
> -
> -Loop_cbc_dec8x_tail:				# up to 7 "words" tail...
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -	vncipher	$out5,$out5,v24
> -	vncipher	$out6,$out6,v24
> -	vncipher	$out7,$out7,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	vncipher	$out5,$out5,v25
> -	vncipher	$out6,$out6,v25
> -	vncipher	$out7,$out7,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_cbc_dec8x_tail
> -
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -	vncipher	$out5,$out5,v24
> -	vncipher	$out6,$out6,v24
> -	vncipher	$out7,$out7,v24
> -
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	vncipher	$out5,$out5,v25
> -	vncipher	$out6,$out6,v25
> -	vncipher	$out7,$out7,v25
> -
> -	vncipher	$out1,$out1,v26
> -	vncipher	$out2,$out2,v26
> -	vncipher	$out3,$out3,v26
> -	vncipher	$out4,$out4,v26
> -	vncipher	$out5,$out5,v26
> -	vncipher	$out6,$out6,v26
> -	vncipher	$out7,$out7,v26
> -
> -	vncipher	$out1,$out1,v27
> -	vncipher	$out2,$out2,v27
> -	vncipher	$out3,$out3,v27
> -	vncipher	$out4,$out4,v27
> -	vncipher	$out5,$out5,v27
> -	vncipher	$out6,$out6,v27
> -	vncipher	$out7,$out7,v27
> -
> -	vncipher	$out1,$out1,v28
> -	vncipher	$out2,$out2,v28
> -	vncipher	$out3,$out3,v28
> -	vncipher	$out4,$out4,v28
> -	vncipher	$out5,$out5,v28
> -	vncipher	$out6,$out6,v28
> -	vncipher	$out7,$out7,v28
> -
> -	vncipher	$out1,$out1,v29
> -	vncipher	$out2,$out2,v29
> -	vncipher	$out3,$out3,v29
> -	vncipher	$out4,$out4,v29
> -	vncipher	$out5,$out5,v29
> -	vncipher	$out6,$out6,v29
> -	vncipher	$out7,$out7,v29
> -
> -	vncipher	$out1,$out1,v30
> -	 vxor		$ivec,$ivec,v31		# last round key
> -	vncipher	$out2,$out2,v30
> -	 vxor		$in1,$in1,v31
> -	vncipher	$out3,$out3,v30
> -	 vxor		$in2,$in2,v31
> -	vncipher	$out4,$out4,v30
> -	 vxor		$in3,$in3,v31
> -	vncipher	$out5,$out5,v30
> -	 vxor		$in4,$in4,v31
> -	vncipher	$out6,$out6,v30
> -	 vxor		$in5,$in5,v31
> -	vncipher	$out7,$out7,v30
> -	 vxor		$in6,$in6,v31
> -
> -	cmplwi		$len,32			# switch($len)
> -	blt		Lcbc_dec8x_one
> -	nop
> -	beq		Lcbc_dec8x_two
> -	cmplwi		$len,64
> -	blt		Lcbc_dec8x_three
> -	nop
> -	beq		Lcbc_dec8x_four
> -	cmplwi		$len,96
> -	blt		Lcbc_dec8x_five
> -	nop
> -	beq		Lcbc_dec8x_six
> -
> -Lcbc_dec8x_seven:
> -	vncipherlast	$out1,$out1,$ivec
> -	vncipherlast	$out2,$out2,$in1
> -	vncipherlast	$out3,$out3,$in2
> -	vncipherlast	$out4,$out4,$in3
> -	vncipherlast	$out5,$out5,$in4
> -	vncipherlast	$out6,$out6,$in5
> -	vncipherlast	$out7,$out7,$in6
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x00,$out
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x10,$out
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x20,$out
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x30,$out
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x40,$out
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x50,$out
> -	stvx_u		$out7,$x60,$out
> -	addi		$out,$out,0x70
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lcbc_dec8x_six:
> -	vncipherlast	$out2,$out2,$ivec
> -	vncipherlast	$out3,$out3,$in2
> -	vncipherlast	$out4,$out4,$in3
> -	vncipherlast	$out5,$out5,$in4
> -	vncipherlast	$out6,$out6,$in5
> -	vncipherlast	$out7,$out7,$in6
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x00,$out
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x10,$out
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x20,$out
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x30,$out
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x40,$out
> -	stvx_u		$out7,$x50,$out
> -	addi		$out,$out,0x60
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lcbc_dec8x_five:
> -	vncipherlast	$out3,$out3,$ivec
> -	vncipherlast	$out4,$out4,$in3
> -	vncipherlast	$out5,$out5,$in4
> -	vncipherlast	$out6,$out6,$in5
> -	vncipherlast	$out7,$out7,$in6
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x00,$out
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x10,$out
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x20,$out
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x30,$out
> -	stvx_u		$out7,$x40,$out
> -	addi		$out,$out,0x50
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lcbc_dec8x_four:
> -	vncipherlast	$out4,$out4,$ivec
> -	vncipherlast	$out5,$out5,$in4
> -	vncipherlast	$out6,$out6,$in5
> -	vncipherlast	$out7,$out7,$in6
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x00,$out
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x10,$out
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x20,$out
> -	stvx_u		$out7,$x30,$out
> -	addi		$out,$out,0x40
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lcbc_dec8x_three:
> -	vncipherlast	$out5,$out5,$ivec
> -	vncipherlast	$out6,$out6,$in5
> -	vncipherlast	$out7,$out7,$in6
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x00,$out
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x10,$out
> -	stvx_u		$out7,$x20,$out
> -	addi		$out,$out,0x30
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lcbc_dec8x_two:
> -	vncipherlast	$out6,$out6,$ivec
> -	vncipherlast	$out7,$out7,$in6
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x00,$out
> -	stvx_u		$out7,$x10,$out
> -	addi		$out,$out,0x20
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lcbc_dec8x_one:
> -	vncipherlast	$out7,$out7,$ivec
> -	vmr		$ivec,$in7
> -
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out7,0,$out
> -	addi		$out,$out,0x10
> -
> -Lcbc_dec8x_done:
> -	le?vperm	$ivec,$ivec,$ivec,$inpperm
> -	stvx_u		$ivec,0,$ivp		# write [unaligned] iv
> -
> -	li		r10,`$FRAME+15`
> -	li		r11,`$FRAME+31`
> -	stvx		$inpperm,r10,$sp	# wipe copies of round keys
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$inpperm,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$inpperm,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$inpperm,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -
> -	mtspr		256,$vrsave
> -	lvx		v20,r10,$sp		# ABI says so
> -	addi		r10,r10,32
> -	lvx		v21,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v22,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v23,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v24,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v25,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v26,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v27,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v28,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v29,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v30,r10,$sp
> -	lvx		v31,r11,$sp
> -	$POP		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	$POP		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	$POP		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	$POP		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	$POP		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	$POP		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	addi		$sp,$sp,`$FRAME+21*16+6*$SIZE_T`
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0x80,6,6,0
> -	.long		0
> -.size	.${prefix}_cbc_encrypt,.-.${prefix}_cbc_encrypt
> -___
> -}}	}}}
> -
> -#########################################################################
> -{{{	# CTR procedure[s]						#
> -my ($inp,$out,$len,$key,$ivp,$x10,$rounds,$idx)=map("r$_",(3..10));
> -my ($rndkey0,$rndkey1,$inout,$tmp)=		map("v$_",(0..3));
> -my ($ivec,$inptail,$inpperm,$outhead,$outperm,$outmask,$keyperm,$one)=
> -						map("v$_",(4..11));
> -my $dat=$tmp;
> -
> -$code.=<<___;
> -.globl	.${prefix}_ctr32_encrypt_blocks
> -	${UCMP}i	$len,1
> -	bltlr-
> -
> -	lis		r0,0xfff0
> -	mfspr		$vrsave,256
> -	mtspr		256,r0
> -
> -	li		$idx,15
> -	vxor		$rndkey0,$rndkey0,$rndkey0
> -	le?vspltisb	$tmp,0x0f
> -
> -	lvx		$ivec,0,$ivp		# load [unaligned] iv
> -	lvsl		$inpperm,0,$ivp
> -	lvx		$inptail,$idx,$ivp
> -	 vspltisb	$one,1
> -	le?vxor		$inpperm,$inpperm,$tmp
> -	vperm		$ivec,$ivec,$inptail,$inpperm
> -	 vsldoi		$one,$rndkey0,$one,1
> -
> -	neg		r11,$inp
> -	?lvsl		$keyperm,0,$key		# prepare for unaligned key
> -	lwz		$rounds,240($key)
> -
> -	lvsr		$inpperm,0,r11		# prepare for unaligned load
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,15		# 15 is not typo
> -	le?vxor		$inpperm,$inpperm,$tmp
> -
> -	srwi		$rounds,$rounds,1
> -	li		$idx,16
> -	subi		$rounds,$rounds,1
> -
> -	${UCMP}i	$len,8
> -	bge		_aesp8_ctr32_encrypt8x
> -
> -	?lvsr		$outperm,0,$out		# prepare for unaligned store
> -	vspltisb	$outmask,-1
> -	lvx		$outhead,0,$out
> -	?vperm		$outmask,$rndkey0,$outmask,$outperm
> -	le?vxor		$outperm,$outperm,$tmp
> -
> -	lvx		$rndkey0,0,$key
> -	mtctr		$rounds
> -	lvx		$rndkey1,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$ivec,$rndkey0
> -	lvx		$rndkey0,$idx,$key
> -	addi		$idx,$idx,16
> -	b		Loop_ctr32_enc
> -
> -.align	5
> -Loop_ctr32_enc:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipher		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key
> -	addi		$idx,$idx,16
> -	bdnz		Loop_ctr32_enc
> -
> -	vadduwm		$ivec,$ivec,$one
> -	 vmr		$dat,$inptail
> -	 lvx		$inptail,0,$inp
> -	 addi		$inp,$inp,16
> -	 subic.		$len,$len,1		# blocks--
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key
> -	 vperm		$dat,$dat,$inptail,$inpperm
> -	 li		$idx,16
> -	?vperm		$rndkey1,$rndkey0,$rndkey1,$keyperm
> -	 lvx		$rndkey0,0,$key
> -	vxor		$dat,$dat,$rndkey1	# last round key
> -	vcipherlast	$inout,$inout,$dat
> -
> -	 lvx		$rndkey1,$idx,$key
> -	 addi		$idx,$idx,16
> -	vperm		$inout,$inout,$inout,$outperm
> -	vsel		$dat,$outhead,$inout,$outmask
> -	 mtctr		$rounds
> -	 ?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vmr		$outhead,$inout
> -	 vxor		$inout,$ivec,$rndkey0
> -	 lvx		$rndkey0,$idx,$key
> -	 addi		$idx,$idx,16
> -	stvx		$dat,0,$out
> -	addi		$out,$out,16
> -	bne		Loop_ctr32_enc
> -
> -	addi		$out,$out,-1
> -	lvx		$inout,0,$out		# redundant in aligned case
> -	vsel		$inout,$outhead,$inout,$outmask
> -	stvx		$inout,0,$out
> -
> -	mtspr		256,$vrsave
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0,0,6,0
> -	.long		0
> -___
> -#########################################################################
> -{{	# Optimized CTR procedure					#
> -my $key_="r11";
> -my ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70)=map("r$_",(0,8,26..31));
> -my ($in0, $in1, $in2, $in3, $in4, $in5, $in6, $in7 )=map("v$_",(0..3,10,12..14));
> -my ($out0,$out1,$out2,$out3,$out4,$out5,$out6,$out7)=map("v$_",(15..22));
> -my $rndkey0="v23";	# v24-v25 rotating buffer for first found keys
> -			# v26-v31 last 6 round keys
> -my ($tmp,$keyperm)=($in3,$in4);	# aliases with "caller", redundant assignment
> -my ($two,$three,$four)=($outhead,$outperm,$outmask);
> -
> -$code.=<<___;
> -.align	5
> -_aesp8_ctr32_encrypt8x:
> -	$STU		$sp,-`($FRAME+21*16+6*$SIZE_T)`($sp)
> -	li		r10,`$FRAME+8*16+15`
> -	li		r11,`$FRAME+8*16+31`
> -	stvx		v20,r10,$sp		# ABI says so
> -	addi		r10,r10,32
> -	stvx		v21,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v22,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v23,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v24,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v25,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v26,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v27,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v28,r10,$sp
> -	addi		r10,r10,32
> -	stvx		v29,r11,$sp
> -	addi		r11,r11,32
> -	stvx		v30,r10,$sp
> -	stvx		v31,r11,$sp
> -	li		r0,-1
> -	stw		$vrsave,`$FRAME+21*16-4`($sp)	# save vrsave
> -	li		$x10,0x10
> -	$PUSH		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	li		$x20,0x20
> -	$PUSH		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	li		$x30,0x30
> -	$PUSH		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	li		$x40,0x40
> -	$PUSH		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	li		$x50,0x50
> -	$PUSH		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	li		$x60,0x60
> -	$PUSH		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	li		$x70,0x70
> -	mtspr		256,r0
> -
> -	subi		$rounds,$rounds,3	# -4 in total
> -
> -	lvx		$rndkey0,$x00,$key	# load key schedule
> -	lvx		v30,$x10,$key
> -	addi		$key,$key,0x20
> -	lvx		v31,$x00,$key
> -	?vperm		$rndkey0,$rndkey0,v30,$keyperm
> -	addi		$key_,$sp,$FRAME+15
> -	mtctr		$rounds
> -
> -Load_ctr32_enc_key:
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v30,$x10,$key
> -	addi		$key,$key,0x20
> -	stvx		v24,$x00,$key_		# off-load round[1]
> -	?vperm		v25,v31,v30,$keyperm
> -	lvx		v31,$x00,$key
> -	stvx		v25,$x10,$key_		# off-load round[2]
> -	addi		$key_,$key_,0x20
> -	bdnz		Load_ctr32_enc_key
> -
> -	lvx		v26,$x10,$key
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v27,$x20,$key
> -	stvx		v24,$x00,$key_		# off-load round[3]
> -	?vperm		v25,v31,v26,$keyperm
> -	lvx		v28,$x30,$key
> -	stvx		v25,$x10,$key_		# off-load round[4]
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	?vperm		v26,v26,v27,$keyperm
> -	lvx		v29,$x40,$key
> -	?vperm		v27,v27,v28,$keyperm
> -	lvx		v30,$x50,$key
> -	?vperm		v28,v28,v29,$keyperm
> -	lvx		v31,$x60,$key
> -	?vperm		v29,v29,v30,$keyperm
> -	lvx		$out0,$x70,$key		# borrow $out0
> -	?vperm		v30,v30,v31,$keyperm
> -	lvx		v24,$x00,$key_		# pre-load round[1]
> -	?vperm		v31,v31,$out0,$keyperm
> -	lvx		v25,$x10,$key_		# pre-load round[2]
> -
> -	vadduqm		$two,$one,$one
> -	subi		$inp,$inp,15		# undo "caller"
> -	$SHL		$len,$len,4
> -
> -	vadduqm		$out1,$ivec,$one	# counter values ...
> -	vadduqm		$out2,$ivec,$two
> -	vxor		$out0,$ivec,$rndkey0	# ... xored with rndkey[0]
> -	 le?li		$idx,8
> -	vadduqm		$out3,$out1,$two
> -	vxor		$out1,$out1,$rndkey0
> -	 le?lvsl	$inpperm,0,$idx
> -	vadduqm		$out4,$out2,$two
> -	vxor		$out2,$out2,$rndkey0
> -	 le?vspltisb	$tmp,0x0f
> -	vadduqm		$out5,$out3,$two
> -	vxor		$out3,$out3,$rndkey0
> -	 le?vxor	$inpperm,$inpperm,$tmp	# transform for lvx_u/stvx_u
> -	vadduqm		$out6,$out4,$two
> -	vxor		$out4,$out4,$rndkey0
> -	vadduqm		$out7,$out5,$two
> -	vxor		$out5,$out5,$rndkey0
> -	vadduqm		$ivec,$out6,$two	# next counter value
> -	vxor		$out6,$out6,$rndkey0
> -	vxor		$out7,$out7,$rndkey0
> -
> -	mtctr		$rounds
> -	b		Loop_ctr32_enc8x
> -.align	5
> -Loop_ctr32_enc8x:
> -	vcipher 	$out0,$out0,v24
> -	vcipher 	$out1,$out1,v24
> -	vcipher 	$out2,$out2,v24
> -	vcipher 	$out3,$out3,v24
> -	vcipher 	$out4,$out4,v24
> -	vcipher 	$out5,$out5,v24
> -	vcipher 	$out6,$out6,v24
> -	vcipher 	$out7,$out7,v24
> -Loop_ctr32_enc8x_middle:
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vcipher 	$out0,$out0,v25
> -	vcipher 	$out1,$out1,v25
> -	vcipher 	$out2,$out2,v25
> -	vcipher 	$out3,$out3,v25
> -	vcipher 	$out4,$out4,v25
> -	vcipher 	$out5,$out5,v25
> -	vcipher 	$out6,$out6,v25
> -	vcipher 	$out7,$out7,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_ctr32_enc8x
> -
> -	subic		r11,$len,256		# $len-256, borrow $key_
> -	vcipher 	$out0,$out0,v24
> -	vcipher 	$out1,$out1,v24
> -	vcipher 	$out2,$out2,v24
> -	vcipher 	$out3,$out3,v24
> -	vcipher 	$out4,$out4,v24
> -	vcipher 	$out5,$out5,v24
> -	vcipher 	$out6,$out6,v24
> -	vcipher 	$out7,$out7,v24
> -
> -	subfe		r0,r0,r0		# borrow?-1:0
> -	vcipher 	$out0,$out0,v25
> -	vcipher 	$out1,$out1,v25
> -	vcipher 	$out2,$out2,v25
> -	vcipher 	$out3,$out3,v25
> -	vcipher 	$out4,$out4,v25
> -	vcipher		$out5,$out5,v25
> -	vcipher		$out6,$out6,v25
> -	vcipher		$out7,$out7,v25
> -
> -	and		r0,r0,r11
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vcipher		$out0,$out0,v26
> -	vcipher		$out1,$out1,v26
> -	vcipher		$out2,$out2,v26
> -	vcipher		$out3,$out3,v26
> -	vcipher		$out4,$out4,v26
> -	vcipher		$out5,$out5,v26
> -	vcipher		$out6,$out6,v26
> -	vcipher		$out7,$out7,v26
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -
> -	subic		$len,$len,129		# $len-=129
> -	vcipher		$out0,$out0,v27
> -	addi		$len,$len,1		# $len-=128 really
> -	vcipher		$out1,$out1,v27
> -	vcipher		$out2,$out2,v27
> -	vcipher		$out3,$out3,v27
> -	vcipher		$out4,$out4,v27
> -	vcipher		$out5,$out5,v27
> -	vcipher		$out6,$out6,v27
> -	vcipher		$out7,$out7,v27
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -
> -	vcipher		$out0,$out0,v28
> -	 lvx_u		$in0,$x00,$inp		# load input
> -	vcipher		$out1,$out1,v28
> -	 lvx_u		$in1,$x10,$inp
> -	vcipher		$out2,$out2,v28
> -	 lvx_u		$in2,$x20,$inp
> -	vcipher		$out3,$out3,v28
> -	 lvx_u		$in3,$x30,$inp
> -	vcipher		$out4,$out4,v28
> -	 lvx_u		$in4,$x40,$inp
> -	vcipher		$out5,$out5,v28
> -	 lvx_u		$in5,$x50,$inp
> -	vcipher		$out6,$out6,v28
> -	 lvx_u		$in6,$x60,$inp
> -	vcipher		$out7,$out7,v28
> -	 lvx_u		$in7,$x70,$inp
> -	 addi		$inp,$inp,0x80
> -
> -	vcipher		$out0,$out0,v29
> -	 le?vperm	$in0,$in0,$in0,$inpperm
> -	vcipher		$out1,$out1,v29
> -	 le?vperm	$in1,$in1,$in1,$inpperm
> -	vcipher		$out2,$out2,v29
> -	 le?vperm	$in2,$in2,$in2,$inpperm
> -	vcipher		$out3,$out3,v29
> -	 le?vperm	$in3,$in3,$in3,$inpperm
> -	vcipher		$out4,$out4,v29
> -	 le?vperm	$in4,$in4,$in4,$inpperm
> -	vcipher		$out5,$out5,v29
> -	 le?vperm	$in5,$in5,$in5,$inpperm
> -	vcipher		$out6,$out6,v29
> -	 le?vperm	$in6,$in6,$in6,$inpperm
> -	vcipher		$out7,$out7,v29
> -	 le?vperm	$in7,$in7,$in7,$inpperm
> -
> -	add		$inp,$inp,r0		# $inp is adjusted in such
> -						# way that at exit from the
> -						# loop inX-in7 are loaded
> -						# with last "words"
> -	subfe.		r0,r0,r0		# borrow?-1:0
> -	vcipher		$out0,$out0,v30
> -	 vxor		$in0,$in0,v31		# xor with last round key
> -	vcipher		$out1,$out1,v30
> -	 vxor		$in1,$in1,v31
> -	vcipher		$out2,$out2,v30
> -	 vxor		$in2,$in2,v31
> -	vcipher		$out3,$out3,v30
> -	 vxor		$in3,$in3,v31
> -	vcipher		$out4,$out4,v30
> -	 vxor		$in4,$in4,v31
> -	vcipher		$out5,$out5,v30
> -	 vxor		$in5,$in5,v31
> -	vcipher		$out6,$out6,v30
> -	 vxor		$in6,$in6,v31
> -	vcipher		$out7,$out7,v30
> -	 vxor		$in7,$in7,v31
> -
> -	bne		Lctr32_enc8x_break	# did $len-129 borrow?
> -
> -	vcipherlast	$in0,$out0,$in0
> -	vcipherlast	$in1,$out1,$in1
> -	 vadduqm	$out1,$ivec,$one	# counter values ...
> -	vcipherlast	$in2,$out2,$in2
> -	 vadduqm	$out2,$ivec,$two
> -	 vxor		$out0,$ivec,$rndkey0	# ... xored with rndkey[0]
> -	vcipherlast	$in3,$out3,$in3
> -	 vadduqm	$out3,$out1,$two
> -	 vxor		$out1,$out1,$rndkey0
> -	vcipherlast	$in4,$out4,$in4
> -	 vadduqm	$out4,$out2,$two
> -	 vxor		$out2,$out2,$rndkey0
> -	vcipherlast	$in5,$out5,$in5
> -	 vadduqm	$out5,$out3,$two
> -	 vxor		$out3,$out3,$rndkey0
> -	vcipherlast	$in6,$out6,$in6
> -	 vadduqm	$out6,$out4,$two
> -	 vxor		$out4,$out4,$rndkey0
> -	vcipherlast	$in7,$out7,$in7
> -	 vadduqm	$out7,$out5,$two
> -	 vxor		$out5,$out5,$rndkey0
> -	le?vperm	$in0,$in0,$in0,$inpperm
> -	 vadduqm	$ivec,$out6,$two	# next counter value
> -	 vxor		$out6,$out6,$rndkey0
> -	le?vperm	$in1,$in1,$in1,$inpperm
> -	 vxor		$out7,$out7,$rndkey0
> -	mtctr		$rounds
> -
> -	 vcipher	$out0,$out0,v24
> -	stvx_u		$in0,$x00,$out
> -	le?vperm	$in2,$in2,$in2,$inpperm
> -	 vcipher	$out1,$out1,v24
> -	stvx_u		$in1,$x10,$out
> -	le?vperm	$in3,$in3,$in3,$inpperm
> -	 vcipher	$out2,$out2,v24
> -	stvx_u		$in2,$x20,$out
> -	le?vperm	$in4,$in4,$in4,$inpperm
> -	 vcipher	$out3,$out3,v24
> -	stvx_u		$in3,$x30,$out
> -	le?vperm	$in5,$in5,$in5,$inpperm
> -	 vcipher	$out4,$out4,v24
> -	stvx_u		$in4,$x40,$out
> -	le?vperm	$in6,$in6,$in6,$inpperm
> -	 vcipher	$out5,$out5,v24
> -	stvx_u		$in5,$x50,$out
> -	le?vperm	$in7,$in7,$in7,$inpperm
> -	 vcipher	$out6,$out6,v24
> -	stvx_u		$in6,$x60,$out
> -	 vcipher	$out7,$out7,v24
> -	stvx_u		$in7,$x70,$out
> -	addi		$out,$out,0x80
> -
> -	b		Loop_ctr32_enc8x_middle
> -
> -.align	5
> -Lctr32_enc8x_break:
> -	cmpwi		$len,-0x60
> -	blt		Lctr32_enc8x_one
> -	nop
> -	beq		Lctr32_enc8x_two
> -	cmpwi		$len,-0x40
> -	blt		Lctr32_enc8x_three
> -	nop
> -	beq		Lctr32_enc8x_four
> -	cmpwi		$len,-0x20
> -	blt		Lctr32_enc8x_five
> -	nop
> -	beq		Lctr32_enc8x_six
> -	cmpwi		$len,0x00
> -	blt		Lctr32_enc8x_seven
> -
> -Lctr32_enc8x_eight:
> -	vcipherlast	$out0,$out0,$in0
> -	vcipherlast	$out1,$out1,$in1
> -	vcipherlast	$out2,$out2,$in2
> -	vcipherlast	$out3,$out3,$in3
> -	vcipherlast	$out4,$out4,$in4
> -	vcipherlast	$out5,$out5,$in5
> -	vcipherlast	$out6,$out6,$in6
> -	vcipherlast	$out7,$out7,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x20,$out
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x30,$out
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x40,$out
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x50,$out
> -	le?vperm	$out7,$out7,$out7,$inpperm
> -	stvx_u		$out6,$x60,$out
> -	stvx_u		$out7,$x70,$out
> -	addi		$out,$out,0x80
> -	b		Lctr32_enc8x_done
> -
> -.align	5
> -Lctr32_enc8x_seven:
> -	vcipherlast	$out0,$out0,$in1
> -	vcipherlast	$out1,$out1,$in2
> -	vcipherlast	$out2,$out2,$in3
> -	vcipherlast	$out3,$out3,$in4
> -	vcipherlast	$out4,$out4,$in5
> -	vcipherlast	$out5,$out5,$in6
> -	vcipherlast	$out6,$out6,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x20,$out
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x30,$out
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x40,$out
> -	le?vperm	$out6,$out6,$out6,$inpperm
> -	stvx_u		$out5,$x50,$out
> -	stvx_u		$out6,$x60,$out
> -	addi		$out,$out,0x70
> -	b		Lctr32_enc8x_done
> -
> -.align	5
> -Lctr32_enc8x_six:
> -	vcipherlast	$out0,$out0,$in2
> -	vcipherlast	$out1,$out1,$in3
> -	vcipherlast	$out2,$out2,$in4
> -	vcipherlast	$out3,$out3,$in5
> -	vcipherlast	$out4,$out4,$in6
> -	vcipherlast	$out5,$out5,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x20,$out
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x30,$out
> -	le?vperm	$out5,$out5,$out5,$inpperm
> -	stvx_u		$out4,$x40,$out
> -	stvx_u		$out5,$x50,$out
> -	addi		$out,$out,0x60
> -	b		Lctr32_enc8x_done
> -
> -.align	5
> -Lctr32_enc8x_five:
> -	vcipherlast	$out0,$out0,$in3
> -	vcipherlast	$out1,$out1,$in4
> -	vcipherlast	$out2,$out2,$in5
> -	vcipherlast	$out3,$out3,$in6
> -	vcipherlast	$out4,$out4,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x20,$out
> -	le?vperm	$out4,$out4,$out4,$inpperm
> -	stvx_u		$out3,$x30,$out
> -	stvx_u		$out4,$x40,$out
> -	addi		$out,$out,0x50
> -	b		Lctr32_enc8x_done
> -
> -.align	5
> -Lctr32_enc8x_four:
> -	vcipherlast	$out0,$out0,$in4
> -	vcipherlast	$out1,$out1,$in5
> -	vcipherlast	$out2,$out2,$in6
> -	vcipherlast	$out3,$out3,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$inpperm
> -	stvx_u		$out2,$x20,$out
> -	stvx_u		$out3,$x30,$out
> -	addi		$out,$out,0x40
> -	b		Lctr32_enc8x_done
> -
> -.align	5
> -Lctr32_enc8x_three:
> -	vcipherlast	$out0,$out0,$in5
> -	vcipherlast	$out1,$out1,$in6
> -	vcipherlast	$out2,$out2,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	le?vperm	$out2,$out2,$out2,$inpperm
> -	stvx_u		$out1,$x10,$out
> -	stvx_u		$out2,$x20,$out
> -	addi		$out,$out,0x30
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lctr32_enc8x_two:
> -	vcipherlast	$out0,$out0,$in6
> -	vcipherlast	$out1,$out1,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	le?vperm	$out1,$out1,$out1,$inpperm
> -	stvx_u		$out0,$x00,$out
> -	stvx_u		$out1,$x10,$out
> -	addi		$out,$out,0x20
> -	b		Lcbc_dec8x_done
> -
> -.align	5
> -Lctr32_enc8x_one:
> -	vcipherlast	$out0,$out0,$in7
> -
> -	le?vperm	$out0,$out0,$out0,$inpperm
> -	stvx_u		$out0,0,$out
> -	addi		$out,$out,0x10
> -
> -Lctr32_enc8x_done:
> -	li		r10,`$FRAME+15`
> -	li		r11,`$FRAME+31`
> -	stvx		$inpperm,r10,$sp	# wipe copies of round keys
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$inpperm,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$inpperm,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$inpperm,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$inpperm,r11,$sp
> -	addi		r11,r11,32
> -
> -	mtspr		256,$vrsave
> -	lvx		v20,r10,$sp		# ABI says so
> -	addi		r10,r10,32
> -	lvx		v21,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v22,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v23,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v24,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v25,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v26,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v27,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v28,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v29,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v30,r10,$sp
> -	lvx		v31,r11,$sp
> -	$POP		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	$POP		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	$POP		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	$POP		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	$POP		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	$POP		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	addi		$sp,$sp,`$FRAME+21*16+6*$SIZE_T`
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0x80,6,6,0
> -	.long		0
> -.size	.${prefix}_ctr32_encrypt_blocks,.-.${prefix}_ctr32_encrypt_blocks
> -___
> -}}	}}}
> -
> -#########################################################################
> -{{{	# XTS procedures						#
> -# int aes_p8_xts_[en|de]crypt(const char *inp, char *out, size_t len,	#
> -#                             const AES_KEY *key1, const AES_KEY *key2,	#
> -#                             [const] unsigned char iv[16]);		#
> -# If $key2 is NULL, then a "tweak chaining" mode is engaged, in which	#
> -# input tweak value is assumed to be encrypted already, and last tweak	#
> -# value, one suitable for consecutive call on same chunk of data, is	#
> -# written back to original buffer. In addition, in "tweak chaining"	#
> -# mode only complete input blocks are processed.			#
> -
> -my ($inp,$out,$len,$key1,$key2,$ivp,$rounds,$idx) =	map("r$_",(3..10));
> -my ($rndkey0,$rndkey1,$inout) =				map("v$_",(0..2));
> -my ($output,$inptail,$inpperm,$leperm,$keyperm) =	map("v$_",(3..7));
> -my ($tweak,$seven,$eighty7,$tmp,$tweak1) =		map("v$_",(8..12));
> -my $taillen = $key2;
> -
> -   ($inp,$idx) = ($idx,$inp);				# reassign
> -
> -$code.=<<___;
> -.globl	.${prefix}_xts_encrypt
> -	mr		$inp,r3				# reassign
> -	li		r3,-1
> -	${UCMP}i	$len,16
> -	bltlr-
> -
> -	lis		r0,0xfff0
> -	mfspr		r12,256				# save vrsave
> -	li		r11,0
> -	mtspr		256,r0
> -
> -	vspltisb	$seven,0x07			# 0x070707..07
> -	le?lvsl		$leperm,r11,r11
> -	le?vspltisb	$tmp,0x0f
> -	le?vxor		$leperm,$leperm,$seven
> -
> -	li		$idx,15
> -	lvx		$tweak,0,$ivp			# load [unaligned] iv
> -	lvsl		$inpperm,0,$ivp
> -	lvx		$inptail,$idx,$ivp
> -	le?vxor		$inpperm,$inpperm,$tmp
> -	vperm		$tweak,$tweak,$inptail,$inpperm
> -
> -	neg		r11,$inp
> -	lvsr		$inpperm,0,r11			# prepare for unaligned load
> -	lvx		$inout,0,$inp
> -	addi		$inp,$inp,15			# 15 is not typo
> -	le?vxor		$inpperm,$inpperm,$tmp
> -
> -	${UCMP}i	$key2,0				# key2==NULL?
> -	beq		Lxts_enc_no_key2
> -
> -	?lvsl		$keyperm,0,$key2		# prepare for unaligned key
> -	lwz		$rounds,240($key2)
> -	srwi		$rounds,$rounds,1
> -	subi		$rounds,$rounds,1
> -	li		$idx,16
> -
> -	lvx		$rndkey0,0,$key2
> -	lvx		$rndkey1,$idx,$key2
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$tweak,$tweak,$rndkey0
> -	lvx		$rndkey0,$idx,$key2
> -	addi		$idx,$idx,16
> -	mtctr		$rounds
> -
> -Ltweak_xts_enc:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$tweak,$tweak,$rndkey1
> -	lvx		$rndkey1,$idx,$key2
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipher		$tweak,$tweak,$rndkey0
> -	lvx		$rndkey0,$idx,$key2
> -	addi		$idx,$idx,16
> -	bdnz		Ltweak_xts_enc
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$tweak,$tweak,$rndkey1
> -	lvx		$rndkey1,$idx,$key2
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipherlast	$tweak,$tweak,$rndkey0
> -
> -	li		$ivp,0				# don't chain the tweak
> -	b		Lxts_enc
> -
> -Lxts_enc_no_key2:
> -	li		$idx,-16
> -	and		$len,$len,$idx			# in "tweak chaining"
> -							# mode only complete
> -							# blocks are processed
> -Lxts_enc:
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,16
> -
> -	?lvsl		$keyperm,0,$key1		# prepare for unaligned key
> -	lwz		$rounds,240($key1)
> -	srwi		$rounds,$rounds,1
> -	subi		$rounds,$rounds,1
> -	li		$idx,16
> -
> -	vslb		$eighty7,$seven,$seven		# 0x808080..80
> -	vor		$eighty7,$eighty7,$seven	# 0x878787..87
> -	vspltisb	$tmp,1				# 0x010101..01
> -	vsldoi		$eighty7,$eighty7,$tmp,15	# 0x870101..01
> -
> -	${UCMP}i	$len,96
> -	bge		_aesp8_xts_encrypt6x
> -
> -	andi.		$taillen,$len,15
> -	subic		r0,$len,32
> -	subi		$taillen,$taillen,16
> -	subfe		r0,r0,r0
> -	and		r0,r0,$taillen
> -	add		$inp,$inp,r0
> -
> -	lvx		$rndkey0,0,$key1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -	vperm		$inout,$inout,$inptail,$inpperm
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$inout,$tweak
> -	vxor		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -	mtctr		$rounds
> -	b		Loop_xts_enc
> -
> -.align	5
> -Loop_xts_enc:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipher		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -	bdnz		Loop_xts_enc
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key1
> -	li		$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$rndkey0,$rndkey0,$tweak
> -	vcipherlast	$output,$inout,$rndkey0
> -
> -	le?vperm	$tmp,$output,$output,$leperm
> -	be?nop
> -	le?stvx_u	$tmp,0,$out
> -	be?stvx_u	$output,0,$out
> -	addi		$out,$out,16
> -
> -	subic.		$len,$len,16
> -	beq		Lxts_enc_done
> -
> -	vmr		$inout,$inptail
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,16
> -	lvx		$rndkey0,0,$key1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -
> -	subic		r0,$len,32
> -	subfe		r0,r0,r0
> -	and		r0,r0,$taillen
> -	add		$inp,$inp,r0
> -
> -	vsrab		$tmp,$tweak,$seven		# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	vxor		$tweak,$tweak,$tmp
> -
> -	vperm		$inout,$inout,$inptail,$inpperm
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$inout,$tweak
> -	vxor		$output,$output,$rndkey0	# just in case $len<16
> -	vxor		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -
> -	mtctr		$rounds
> -	${UCMP}i	$len,16
> -	bge		Loop_xts_enc
> -
> -	vxor		$output,$output,$tweak
> -	lvsr		$inpperm,0,$len			# $inpperm is no longer needed
> -	vxor		$inptail,$inptail,$inptail	# $inptail is no longer needed
> -	vspltisb	$tmp,-1
> -	vperm		$inptail,$inptail,$tmp,$inpperm
> -	vsel		$inout,$inout,$output,$inptail
> -
> -	subi		r11,$out,17
> -	subi		$out,$out,16
> -	mtctr		$len
> -	li		$len,16
> -Loop_xts_enc_steal:
> -	lbzu		r0,1(r11)
> -	stb		r0,16(r11)
> -	bdnz		Loop_xts_enc_steal
> -
> -	mtctr		$rounds
> -	b		Loop_xts_enc			# one more time...
> -
> -Lxts_enc_done:
> -	${UCMP}i	$ivp,0
> -	beq		Lxts_enc_ret
> -
> -	vsrab		$tmp,$tweak,$seven		# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	vxor		$tweak,$tweak,$tmp
> -
> -	le?vperm	$tweak,$tweak,$tweak,$leperm
> -	stvx_u		$tweak,0,$ivp
> -
> -Lxts_enc_ret:
> -	mtspr		256,r12				# restore vrsave
> -	li		r3,0
> -	blr
> -	.long		0
> -	.byte		0,12,0x04,0,0x80,6,6,0
> -	.long		0
> -.size	.${prefix}_xts_encrypt,.-.${prefix}_xts_encrypt
> -
> -.globl	.${prefix}_xts_decrypt
> -	mr		$inp,r3				# reassign
> -	li		r3,-1
> -	${UCMP}i	$len,16
> -	bltlr-
> -
> -	lis		r0,0xfff8
> -	mfspr		r12,256				# save vrsave
> -	li		r11,0
> -	mtspr		256,r0
> -
> -	andi.		r0,$len,15
> -	neg		r0,r0
> -	andi.		r0,r0,16
> -	sub		$len,$len,r0
> -
> -	vspltisb	$seven,0x07			# 0x070707..07
> -	le?lvsl		$leperm,r11,r11
> -	le?vspltisb	$tmp,0x0f
> -	le?vxor		$leperm,$leperm,$seven
> -
> -	li		$idx,15
> -	lvx		$tweak,0,$ivp			# load [unaligned] iv
> -	lvsl		$inpperm,0,$ivp
> -	lvx		$inptail,$idx,$ivp
> -	le?vxor		$inpperm,$inpperm,$tmp
> -	vperm		$tweak,$tweak,$inptail,$inpperm
> -
> -	neg		r11,$inp
> -	lvsr		$inpperm,0,r11			# prepare for unaligned load
> -	lvx		$inout,0,$inp
> -	addi		$inp,$inp,15			# 15 is not typo
> -	le?vxor		$inpperm,$inpperm,$tmp
> -
> -	${UCMP}i	$key2,0				# key2==NULL?
> -	beq		Lxts_dec_no_key2
> -
> -	?lvsl		$keyperm,0,$key2		# prepare for unaligned key
> -	lwz		$rounds,240($key2)
> -	srwi		$rounds,$rounds,1
> -	subi		$rounds,$rounds,1
> -	li		$idx,16
> -
> -	lvx		$rndkey0,0,$key2
> -	lvx		$rndkey1,$idx,$key2
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$tweak,$tweak,$rndkey0
> -	lvx		$rndkey0,$idx,$key2
> -	addi		$idx,$idx,16
> -	mtctr		$rounds
> -
> -Ltweak_xts_dec:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$tweak,$tweak,$rndkey1
> -	lvx		$rndkey1,$idx,$key2
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipher		$tweak,$tweak,$rndkey0
> -	lvx		$rndkey0,$idx,$key2
> -	addi		$idx,$idx,16
> -	bdnz		Ltweak_xts_dec
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vcipher		$tweak,$tweak,$rndkey1
> -	lvx		$rndkey1,$idx,$key2
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vcipherlast	$tweak,$tweak,$rndkey0
> -
> -	li		$ivp,0				# don't chain the tweak
> -	b		Lxts_dec
> -
> -Lxts_dec_no_key2:
> -	neg		$idx,$len
> -	andi.		$idx,$idx,15
> -	add		$len,$len,$idx			# in "tweak chaining"
> -							# mode only complete
> -							# blocks are processed
> -Lxts_dec:
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,16
> -
> -	?lvsl		$keyperm,0,$key1		# prepare for unaligned key
> -	lwz		$rounds,240($key1)
> -	srwi		$rounds,$rounds,1
> -	subi		$rounds,$rounds,1
> -	li		$idx,16
> -
> -	vslb		$eighty7,$seven,$seven		# 0x808080..80
> -	vor		$eighty7,$eighty7,$seven	# 0x878787..87
> -	vspltisb	$tmp,1				# 0x010101..01
> -	vsldoi		$eighty7,$eighty7,$tmp,15	# 0x870101..01
> -
> -	${UCMP}i	$len,96
> -	bge		_aesp8_xts_decrypt6x
> -
> -	lvx		$rndkey0,0,$key1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -	vperm		$inout,$inout,$inptail,$inpperm
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$inout,$tweak
> -	vxor		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -	mtctr		$rounds
> -
> -	${UCMP}i	$len,16
> -	blt		Ltail_xts_dec
> -	be?b		Loop_xts_dec
> -
> -.align	5
> -Loop_xts_dec:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vncipher	$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vncipher	$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -	bdnz		Loop_xts_dec
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vncipher	$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key1
> -	li		$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$rndkey0,$rndkey0,$tweak
> -	vncipherlast	$output,$inout,$rndkey0
> -
> -	le?vperm	$tmp,$output,$output,$leperm
> -	be?nop
> -	le?stvx_u	$tmp,0,$out
> -	be?stvx_u	$output,0,$out
> -	addi		$out,$out,16
> -
> -	subic.		$len,$len,16
> -	beq		Lxts_dec_done
> -
> -	vmr		$inout,$inptail
> -	lvx		$inptail,0,$inp
> -	addi		$inp,$inp,16
> -	lvx		$rndkey0,0,$key1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -
> -	vsrab		$tmp,$tweak,$seven		# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	vxor		$tweak,$tweak,$tmp
> -
> -	vperm		$inout,$inout,$inptail,$inpperm
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$inout,$inout,$tweak
> -	vxor		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -
> -	mtctr		$rounds
> -	${UCMP}i	$len,16
> -	bge		Loop_xts_dec
> -
> -Ltail_xts_dec:
> -	vsrab		$tmp,$tweak,$seven		# next tweak value
> -	vaddubm		$tweak1,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	vxor		$tweak1,$tweak1,$tmp
> -
> -	subi		$inp,$inp,16
> -	add		$inp,$inp,$len
> -
> -	vxor		$inout,$inout,$tweak		# :-(
> -	vxor		$inout,$inout,$tweak1		# :-)
> -
> -Loop_xts_dec_short:
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vncipher	$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vncipher	$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -	bdnz		Loop_xts_dec_short
> -
> -	?vperm		$rndkey1,$rndkey1,$rndkey0,$keyperm
> -	vncipher	$inout,$inout,$rndkey1
> -	lvx		$rndkey1,$idx,$key1
> -	li		$idx,16
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -	vxor		$rndkey0,$rndkey0,$tweak1
> -	vncipherlast	$output,$inout,$rndkey0
> -
> -	le?vperm	$tmp,$output,$output,$leperm
> -	be?nop
> -	le?stvx_u	$tmp,0,$out
> -	be?stvx_u	$output,0,$out
> -
> -	vmr		$inout,$inptail
> -	lvx		$inptail,0,$inp
> -	#addi		$inp,$inp,16
> -	lvx		$rndkey0,0,$key1
> -	lvx		$rndkey1,$idx,$key1
> -	addi		$idx,$idx,16
> -	vperm		$inout,$inout,$inptail,$inpperm
> -	?vperm		$rndkey0,$rndkey0,$rndkey1,$keyperm
> -
> -	lvsr		$inpperm,0,$len			# $inpperm is no longer needed
> -	vxor		$inptail,$inptail,$inptail	# $inptail is no longer needed
> -	vspltisb	$tmp,-1
> -	vperm		$inptail,$inptail,$tmp,$inpperm
> -	vsel		$inout,$inout,$output,$inptail
> -
> -	vxor		$rndkey0,$rndkey0,$tweak
> -	vxor		$inout,$inout,$rndkey0
> -	lvx		$rndkey0,$idx,$key1
> -	addi		$idx,$idx,16
> -
> -	subi		r11,$out,1
> -	mtctr		$len
> -	li		$len,16
> -Loop_xts_dec_steal:
> -	lbzu		r0,1(r11)
> -	stb		r0,16(r11)
> -	bdnz		Loop_xts_dec_steal
> -
> -	mtctr		$rounds
> -	b		Loop_xts_dec			# one more time...
> -
> -Lxts_dec_done:
> -	${UCMP}i	$ivp,0
> -	beq		Lxts_dec_ret
> -
> -	vsrab		$tmp,$tweak,$seven		# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	vxor		$tweak,$tweak,$tmp
> -
> -	le?vperm	$tweak,$tweak,$tweak,$leperm
> -	stvx_u		$tweak,0,$ivp
> -
> -Lxts_dec_ret:
> -	mtspr		256,r12				# restore vrsave
> -	li		r3,0
> -	blr
> -	.long		0
> -	.byte		0,12,0x04,0,0x80,6,6,0
> -	.long		0
> -.size	.${prefix}_xts_decrypt,.-.${prefix}_xts_decrypt
> -___
> -#########################################################################
> -{{	# Optimized XTS procedures					#
> -my $key_=$key2;
> -my ($x00,$x10,$x20,$x30,$x40,$x50,$x60,$x70)=map("r$_",(0,3,26..31));
> -    $x00=0 if ($flavour =~ /osx/);
> -my ($in0,  $in1,  $in2,  $in3,  $in4,  $in5 )=map("v$_",(0..5));
> -my ($out0, $out1, $out2, $out3, $out4, $out5)=map("v$_",(7,12..16));
> -my ($twk0, $twk1, $twk2, $twk3, $twk4, $twk5)=map("v$_",(17..22));
> -my $rndkey0="v23";	# v24-v25 rotating buffer for first found keys
> -			# v26-v31 last 6 round keys
> -my ($keyperm)=($out0);	# aliases with "caller", redundant assignment
> -my $taillen=$x70;
> -
> -$code.=<<___;
> -.align	5
> -_aesp8_xts_encrypt6x:
> -	$STU		$sp,-`($FRAME+21*16+6*$SIZE_T)`($sp)
> -	mflr		r11
> -	li		r7,`$FRAME+8*16+15`
> -	li		r3,`$FRAME+8*16+31`
> -	$PUSH		r11,`$FRAME+21*16+6*$SIZE_T+$LRSAVE`($sp)
> -	stvx		v20,r7,$sp		# ABI says so
> -	addi		r7,r7,32
> -	stvx		v21,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v22,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v23,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v24,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v25,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v26,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v27,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v28,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v29,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v30,r7,$sp
> -	stvx		v31,r3,$sp
> -	li		r0,-1
> -	stw		$vrsave,`$FRAME+21*16-4`($sp)	# save vrsave
> -	li		$x10,0x10
> -	$PUSH		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	li		$x20,0x20
> -	$PUSH		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	li		$x30,0x30
> -	$PUSH		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	li		$x40,0x40
> -	$PUSH		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	li		$x50,0x50
> -	$PUSH		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	li		$x60,0x60
> -	$PUSH		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	li		$x70,0x70
> -	mtspr		256,r0
> -
> -	subi		$rounds,$rounds,3	# -4 in total
> -
> -	lvx		$rndkey0,$x00,$key1	# load key schedule
> -	lvx		v30,$x10,$key1
> -	addi		$key1,$key1,0x20
> -	lvx		v31,$x00,$key1
> -	?vperm		$rndkey0,$rndkey0,v30,$keyperm
> -	addi		$key_,$sp,$FRAME+15
> -	mtctr		$rounds
> -
> -Load_xts_enc_key:
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v30,$x10,$key1
> -	addi		$key1,$key1,0x20
> -	stvx		v24,$x00,$key_		# off-load round[1]
> -	?vperm		v25,v31,v30,$keyperm
> -	lvx		v31,$x00,$key1
> -	stvx		v25,$x10,$key_		# off-load round[2]
> -	addi		$key_,$key_,0x20
> -	bdnz		Load_xts_enc_key
> -
> -	lvx		v26,$x10,$key1
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v27,$x20,$key1
> -	stvx		v24,$x00,$key_		# off-load round[3]
> -	?vperm		v25,v31,v26,$keyperm
> -	lvx		v28,$x30,$key1
> -	stvx		v25,$x10,$key_		# off-load round[4]
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	?vperm		v26,v26,v27,$keyperm
> -	lvx		v29,$x40,$key1
> -	?vperm		v27,v27,v28,$keyperm
> -	lvx		v30,$x50,$key1
> -	?vperm		v28,v28,v29,$keyperm
> -	lvx		v31,$x60,$key1
> -	?vperm		v29,v29,v30,$keyperm
> -	lvx		$twk5,$x70,$key1	# borrow $twk5
> -	?vperm		v30,v30,v31,$keyperm
> -	lvx		v24,$x00,$key_		# pre-load round[1]
> -	?vperm		v31,v31,$twk5,$keyperm
> -	lvx		v25,$x10,$key_		# pre-load round[2]
> -
> -	 vperm		$in0,$inout,$inptail,$inpperm
> -	 subi		$inp,$inp,31		# undo "caller"
> -	vxor		$twk0,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out0,$in0,$twk0
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in1,$x10,$inp
> -	vxor		$twk1,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in1,$in1,$in1,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out1,$in1,$twk1
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in2,$x20,$inp
> -	 andi.		$taillen,$len,15
> -	vxor		$twk2,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in2,$in2,$in2,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out2,$in2,$twk2
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in3,$x30,$inp
> -	 sub		$len,$len,$taillen
> -	vxor		$twk3,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in3,$in3,$in3,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out3,$in3,$twk3
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in4,$x40,$inp
> -	 subi		$len,$len,0x60
> -	vxor		$twk4,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in4,$in4,$in4,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out4,$in4,$twk4
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in5,$x50,$inp
> -	 addi		$inp,$inp,0x60
> -	vxor		$twk5,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in5,$in5,$in5,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out5,$in5,$twk5
> -	vxor		$tweak,$tweak,$tmp
> -
> -	vxor		v31,v31,$rndkey0
> -	mtctr		$rounds
> -	b		Loop_xts_enc6x
> -
> -.align	5
> -Loop_xts_enc6x:
> -	vcipher		$out0,$out0,v24
> -	vcipher		$out1,$out1,v24
> -	vcipher		$out2,$out2,v24
> -	vcipher		$out3,$out3,v24
> -	vcipher		$out4,$out4,v24
> -	vcipher		$out5,$out5,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vcipher		$out0,$out0,v25
> -	vcipher		$out1,$out1,v25
> -	vcipher		$out2,$out2,v25
> -	vcipher		$out3,$out3,v25
> -	vcipher		$out4,$out4,v25
> -	vcipher		$out5,$out5,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_xts_enc6x
> -
> -	subic		$len,$len,96		# $len-=96
> -	 vxor		$in0,$twk0,v31		# xor with last round key
> -	vcipher		$out0,$out0,v24
> -	vcipher		$out1,$out1,v24
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk0,$tweak,$rndkey0
> -	 vaddubm	$tweak,$tweak,$tweak
> -	vcipher		$out2,$out2,v24
> -	vcipher		$out3,$out3,v24
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vcipher		$out4,$out4,v24
> -	vcipher		$out5,$out5,v24
> -
> -	subfe.		r0,r0,r0		# borrow?-1:0
> -	 vand		$tmp,$tmp,$eighty7
> -	vcipher		$out0,$out0,v25
> -	vcipher		$out1,$out1,v25
> -	 vxor		$tweak,$tweak,$tmp
> -	vcipher		$out2,$out2,v25
> -	vcipher		$out3,$out3,v25
> -	 vxor		$in1,$twk1,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk1,$tweak,$rndkey0
> -	vcipher		$out4,$out4,v25
> -	vcipher		$out5,$out5,v25
> -
> -	and		r0,r0,$len
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vcipher		$out0,$out0,v26
> -	vcipher		$out1,$out1,v26
> -	 vand		$tmp,$tmp,$eighty7
> -	vcipher		$out2,$out2,v26
> -	vcipher		$out3,$out3,v26
> -	 vxor		$tweak,$tweak,$tmp
> -	vcipher		$out4,$out4,v26
> -	vcipher		$out5,$out5,v26
> -
> -	add		$inp,$inp,r0		# $inp is adjusted in such
> -						# way that at exit from the
> -						# loop inX-in5 are loaded
> -						# with last "words"
> -	 vxor		$in2,$twk2,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk2,$tweak,$rndkey0
> -	 vaddubm	$tweak,$tweak,$tweak
> -	vcipher		$out0,$out0,v27
> -	vcipher		$out1,$out1,v27
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vcipher		$out2,$out2,v27
> -	vcipher		$out3,$out3,v27
> -	 vand		$tmp,$tmp,$eighty7
> -	vcipher		$out4,$out4,v27
> -	vcipher		$out5,$out5,v27
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	 vxor		$tweak,$tweak,$tmp
> -	vcipher		$out0,$out0,v28
> -	vcipher		$out1,$out1,v28
> -	 vxor		$in3,$twk3,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk3,$tweak,$rndkey0
> -	vcipher		$out2,$out2,v28
> -	vcipher		$out3,$out3,v28
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vcipher		$out4,$out4,v28
> -	vcipher		$out5,$out5,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -	 vand		$tmp,$tmp,$eighty7
> -
> -	vcipher		$out0,$out0,v29
> -	vcipher		$out1,$out1,v29
> -	 vxor		$tweak,$tweak,$tmp
> -	vcipher		$out2,$out2,v29
> -	vcipher		$out3,$out3,v29
> -	 vxor		$in4,$twk4,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk4,$tweak,$rndkey0
> -	vcipher		$out4,$out4,v29
> -	vcipher		$out5,$out5,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -
> -	vcipher		$out0,$out0,v30
> -	vcipher		$out1,$out1,v30
> -	 vand		$tmp,$tmp,$eighty7
> -	vcipher		$out2,$out2,v30
> -	vcipher		$out3,$out3,v30
> -	 vxor		$tweak,$tweak,$tmp
> -	vcipher		$out4,$out4,v30
> -	vcipher		$out5,$out5,v30
> -	 vxor		$in5,$twk5,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk5,$tweak,$rndkey0
> -
> -	vcipherlast	$out0,$out0,$in0
> -	 lvx_u		$in0,$x00,$inp		# load next input block
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vcipherlast	$out1,$out1,$in1
> -	 lvx_u		$in1,$x10,$inp
> -	vcipherlast	$out2,$out2,$in2
> -	 le?vperm	$in0,$in0,$in0,$leperm
> -	 lvx_u		$in2,$x20,$inp
> -	 vand		$tmp,$tmp,$eighty7
> -	vcipherlast	$out3,$out3,$in3
> -	 le?vperm	$in1,$in1,$in1,$leperm
> -	 lvx_u		$in3,$x30,$inp
> -	vcipherlast	$out4,$out4,$in4
> -	 le?vperm	$in2,$in2,$in2,$leperm
> -	 lvx_u		$in4,$x40,$inp
> -	 vxor		$tweak,$tweak,$tmp
> -	vcipherlast	$tmp,$out5,$in5		# last block might be needed
> -						# in stealing mode
> -	 le?vperm	$in3,$in3,$in3,$leperm
> -	 lvx_u		$in5,$x50,$inp
> -	 addi		$inp,$inp,0x60
> -	 le?vperm	$in4,$in4,$in4,$leperm
> -	 le?vperm	$in5,$in5,$in5,$leperm
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	 vxor		$out0,$in0,$twk0
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	 vxor		$out1,$in1,$twk1
> -	le?vperm	$out3,$out3,$out3,$leperm
> -	stvx_u		$out2,$x20,$out
> -	 vxor		$out2,$in2,$twk2
> -	le?vperm	$out4,$out4,$out4,$leperm
> -	stvx_u		$out3,$x30,$out
> -	 vxor		$out3,$in3,$twk3
> -	le?vperm	$out5,$tmp,$tmp,$leperm
> -	stvx_u		$out4,$x40,$out
> -	 vxor		$out4,$in4,$twk4
> -	le?stvx_u	$out5,$x50,$out
> -	be?stvx_u	$tmp, $x50,$out
> -	 vxor		$out5,$in5,$twk5
> -	addi		$out,$out,0x60
> -
> -	mtctr		$rounds
> -	beq		Loop_xts_enc6x		# did $len-=96 borrow?
> -
> -	addic.		$len,$len,0x60
> -	beq		Lxts_enc6x_zero
> -	cmpwi		$len,0x20
> -	blt		Lxts_enc6x_one
> -	nop
> -	beq		Lxts_enc6x_two
> -	cmpwi		$len,0x40
> -	blt		Lxts_enc6x_three
> -	nop
> -	beq		Lxts_enc6x_four
> -
> -Lxts_enc6x_five:
> -	vxor		$out0,$in1,$twk0
> -	vxor		$out1,$in2,$twk1
> -	vxor		$out2,$in3,$twk2
> -	vxor		$out3,$in4,$twk3
> -	vxor		$out4,$in5,$twk4
> -
> -	bl		_aesp8_xts_enc5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk5		# unused tweak
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$leperm
> -	stvx_u		$out2,$x20,$out
> -	vxor		$tmp,$out4,$twk5	# last block prep for stealing
> -	le?vperm	$out4,$out4,$out4,$leperm
> -	stvx_u		$out3,$x30,$out
> -	stvx_u		$out4,$x40,$out
> -	addi		$out,$out,0x50
> -	bne		Lxts_enc6x_steal
> -	b		Lxts_enc6x_done
> -
> -.align	4
> -Lxts_enc6x_four:
> -	vxor		$out0,$in2,$twk0
> -	vxor		$out1,$in3,$twk1
> -	vxor		$out2,$in4,$twk2
> -	vxor		$out3,$in5,$twk3
> -	vxor		$out4,$out4,$out4
> -
> -	bl		_aesp8_xts_enc5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk4		# unused tweak
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	vxor		$tmp,$out3,$twk4	# last block prep for stealing
> -	le?vperm	$out3,$out3,$out3,$leperm
> -	stvx_u		$out2,$x20,$out
> -	stvx_u		$out3,$x30,$out
> -	addi		$out,$out,0x40
> -	bne		Lxts_enc6x_steal
> -	b		Lxts_enc6x_done
> -
> -.align	4
> -Lxts_enc6x_three:
> -	vxor		$out0,$in3,$twk0
> -	vxor		$out1,$in4,$twk1
> -	vxor		$out2,$in5,$twk2
> -	vxor		$out3,$out3,$out3
> -	vxor		$out4,$out4,$out4
> -
> -	bl		_aesp8_xts_enc5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk3		# unused tweak
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	vxor		$tmp,$out2,$twk3	# last block prep for stealing
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	stvx_u		$out2,$x20,$out
> -	addi		$out,$out,0x30
> -	bne		Lxts_enc6x_steal
> -	b		Lxts_enc6x_done
> -
> -.align	4
> -Lxts_enc6x_two:
> -	vxor		$out0,$in4,$twk0
> -	vxor		$out1,$in5,$twk1
> -	vxor		$out2,$out2,$out2
> -	vxor		$out3,$out3,$out3
> -	vxor		$out4,$out4,$out4
> -
> -	bl		_aesp8_xts_enc5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk2		# unused tweak
> -	vxor		$tmp,$out1,$twk2	# last block prep for stealing
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	stvx_u		$out1,$x10,$out
> -	addi		$out,$out,0x20
> -	bne		Lxts_enc6x_steal
> -	b		Lxts_enc6x_done
> -
> -.align	4
> -Lxts_enc6x_one:
> -	vxor		$out0,$in5,$twk0
> -	nop
> -Loop_xts_enc1x:
> -	vcipher		$out0,$out0,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vcipher		$out0,$out0,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_xts_enc1x
> -
> -	add		$inp,$inp,$taillen
> -	cmpwi		$taillen,0
> -	vcipher		$out0,$out0,v24
> -
> -	subi		$inp,$inp,16
> -	vcipher		$out0,$out0,v25
> -
> -	lvsr		$inpperm,0,$taillen
> -	vcipher		$out0,$out0,v26
> -
> -	lvx_u		$in0,0,$inp
> -	vcipher		$out0,$out0,v27
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vcipher		$out0,$out0,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -
> -	vcipher		$out0,$out0,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vxor		$twk0,$twk0,v31
> -
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vcipher		$out0,$out0,v30
> -
> -	vperm		$in0,$in0,$in0,$inpperm
> -	vcipherlast	$out0,$out0,$twk0
> -
> -	vmr		$twk0,$twk1		# unused tweak
> -	vxor		$tmp,$out0,$twk1	# last block prep for stealing
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	addi		$out,$out,0x10
> -	bne		Lxts_enc6x_steal
> -	b		Lxts_enc6x_done
> -
> -.align	4
> -Lxts_enc6x_zero:
> -	cmpwi		$taillen,0
> -	beq		Lxts_enc6x_done
> -
> -	add		$inp,$inp,$taillen
> -	subi		$inp,$inp,16
> -	lvx_u		$in0,0,$inp
> -	lvsr		$inpperm,0,$taillen	# $in5 is no more
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vperm		$in0,$in0,$in0,$inpperm
> -	vxor		$tmp,$tmp,$twk0
> -Lxts_enc6x_steal:
> -	vxor		$in0,$in0,$twk0
> -	vxor		$out0,$out0,$out0
> -	vspltisb	$out1,-1
> -	vperm		$out0,$out0,$out1,$inpperm
> -	vsel		$out0,$in0,$tmp,$out0	# $tmp is last block, remember?
> -
> -	subi		r30,$out,17
> -	subi		$out,$out,16
> -	mtctr		$taillen
> -Loop_xts_enc6x_steal:
> -	lbzu		r0,1(r30)
> -	stb		r0,16(r30)
> -	bdnz		Loop_xts_enc6x_steal
> -
> -	li		$taillen,0
> -	mtctr		$rounds
> -	b		Loop_xts_enc1x		# one more time...
> -
> -.align	4
> -Lxts_enc6x_done:
> -	${UCMP}i	$ivp,0
> -	beq		Lxts_enc6x_ret
> -
> -	vxor		$tweak,$twk0,$rndkey0
> -	le?vperm	$tweak,$tweak,$tweak,$leperm
> -	stvx_u		$tweak,0,$ivp
> -
> -Lxts_enc6x_ret:
> -	mtlr		r11
> -	li		r10,`$FRAME+15`
> -	li		r11,`$FRAME+31`
> -	stvx		$seven,r10,$sp		# wipe copies of round keys
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$seven,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$seven,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$seven,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -
> -	mtspr		256,$vrsave
> -	lvx		v20,r10,$sp		# ABI says so
> -	addi		r10,r10,32
> -	lvx		v21,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v22,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v23,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v24,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v25,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v26,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v27,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v28,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v29,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v30,r10,$sp
> -	lvx		v31,r11,$sp
> -	$POP		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	$POP		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	$POP		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	$POP		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	$POP		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	$POP		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	addi		$sp,$sp,`$FRAME+21*16+6*$SIZE_T`
> -	blr
> -	.long		0
> -	.byte		0,12,0x04,1,0x80,6,6,0
> -	.long		0
> -
> -.align	5
> -_aesp8_xts_enc5x:
> -	vcipher		$out0,$out0,v24
> -	vcipher		$out1,$out1,v24
> -	vcipher		$out2,$out2,v24
> -	vcipher		$out3,$out3,v24
> -	vcipher		$out4,$out4,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vcipher		$out0,$out0,v25
> -	vcipher		$out1,$out1,v25
> -	vcipher		$out2,$out2,v25
> -	vcipher		$out3,$out3,v25
> -	vcipher		$out4,$out4,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		_aesp8_xts_enc5x
> -
> -	add		$inp,$inp,$taillen
> -	cmpwi		$taillen,0
> -	vcipher		$out0,$out0,v24
> -	vcipher		$out1,$out1,v24
> -	vcipher		$out2,$out2,v24
> -	vcipher		$out3,$out3,v24
> -	vcipher		$out4,$out4,v24
> -
> -	subi		$inp,$inp,16
> -	vcipher		$out0,$out0,v25
> -	vcipher		$out1,$out1,v25
> -	vcipher		$out2,$out2,v25
> -	vcipher		$out3,$out3,v25
> -	vcipher		$out4,$out4,v25
> -	 vxor		$twk0,$twk0,v31
> -
> -	vcipher		$out0,$out0,v26
> -	lvsr		$inpperm,r0,$taillen	# $in5 is no more
> -	vcipher		$out1,$out1,v26
> -	vcipher		$out2,$out2,v26
> -	vcipher		$out3,$out3,v26
> -	vcipher		$out4,$out4,v26
> -	 vxor		$in1,$twk1,v31
> -
> -	vcipher		$out0,$out0,v27
> -	lvx_u		$in0,0,$inp
> -	vcipher		$out1,$out1,v27
> -	vcipher		$out2,$out2,v27
> -	vcipher		$out3,$out3,v27
> -	vcipher		$out4,$out4,v27
> -	 vxor		$in2,$twk2,v31
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vcipher		$out0,$out0,v28
> -	vcipher		$out1,$out1,v28
> -	vcipher		$out2,$out2,v28
> -	vcipher		$out3,$out3,v28
> -	vcipher		$out4,$out4,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -	 vxor		$in3,$twk3,v31
> -
> -	vcipher		$out0,$out0,v29
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vcipher		$out1,$out1,v29
> -	vcipher		$out2,$out2,v29
> -	vcipher		$out3,$out3,v29
> -	vcipher		$out4,$out4,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vxor		$in4,$twk4,v31
> -
> -	vcipher		$out0,$out0,v30
> -	vperm		$in0,$in0,$in0,$inpperm
> -	vcipher		$out1,$out1,v30
> -	vcipher		$out2,$out2,v30
> -	vcipher		$out3,$out3,v30
> -	vcipher		$out4,$out4,v30
> -
> -	vcipherlast	$out0,$out0,$twk0
> -	vcipherlast	$out1,$out1,$in1
> -	vcipherlast	$out2,$out2,$in2
> -	vcipherlast	$out3,$out3,$in3
> -	vcipherlast	$out4,$out4,$in4
> -	blr
> -        .long   	0
> -        .byte   	0,12,0x14,0,0,0,0,0
> -
> -.align	5
> -_aesp8_xts_decrypt6x:
> -	$STU		$sp,-`($FRAME+21*16+6*$SIZE_T)`($sp)
> -	mflr		r11
> -	li		r7,`$FRAME+8*16+15`
> -	li		r3,`$FRAME+8*16+31`
> -	$PUSH		r11,`$FRAME+21*16+6*$SIZE_T+$LRSAVE`($sp)
> -	stvx		v20,r7,$sp		# ABI says so
> -	addi		r7,r7,32
> -	stvx		v21,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v22,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v23,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v24,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v25,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v26,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v27,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v28,r7,$sp
> -	addi		r7,r7,32
> -	stvx		v29,r3,$sp
> -	addi		r3,r3,32
> -	stvx		v30,r7,$sp
> -	stvx		v31,r3,$sp
> -	li		r0,-1
> -	stw		$vrsave,`$FRAME+21*16-4`($sp)	# save vrsave
> -	li		$x10,0x10
> -	$PUSH		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	li		$x20,0x20
> -	$PUSH		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	li		$x30,0x30
> -	$PUSH		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	li		$x40,0x40
> -	$PUSH		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	li		$x50,0x50
> -	$PUSH		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	li		$x60,0x60
> -	$PUSH		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	li		$x70,0x70
> -	mtspr		256,r0
> -
> -	subi		$rounds,$rounds,3	# -4 in total
> -
> -	lvx		$rndkey0,$x00,$key1	# load key schedule
> -	lvx		v30,$x10,$key1
> -	addi		$key1,$key1,0x20
> -	lvx		v31,$x00,$key1
> -	?vperm		$rndkey0,$rndkey0,v30,$keyperm
> -	addi		$key_,$sp,$FRAME+15
> -	mtctr		$rounds
> -
> -Load_xts_dec_key:
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v30,$x10,$key1
> -	addi		$key1,$key1,0x20
> -	stvx		v24,$x00,$key_		# off-load round[1]
> -	?vperm		v25,v31,v30,$keyperm
> -	lvx		v31,$x00,$key1
> -	stvx		v25,$x10,$key_		# off-load round[2]
> -	addi		$key_,$key_,0x20
> -	bdnz		Load_xts_dec_key
> -
> -	lvx		v26,$x10,$key1
> -	?vperm		v24,v30,v31,$keyperm
> -	lvx		v27,$x20,$key1
> -	stvx		v24,$x00,$key_		# off-load round[3]
> -	?vperm		v25,v31,v26,$keyperm
> -	lvx		v28,$x30,$key1
> -	stvx		v25,$x10,$key_		# off-load round[4]
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	?vperm		v26,v26,v27,$keyperm
> -	lvx		v29,$x40,$key1
> -	?vperm		v27,v27,v28,$keyperm
> -	lvx		v30,$x50,$key1
> -	?vperm		v28,v28,v29,$keyperm
> -	lvx		v31,$x60,$key1
> -	?vperm		v29,v29,v30,$keyperm
> -	lvx		$twk5,$x70,$key1	# borrow $twk5
> -	?vperm		v30,v30,v31,$keyperm
> -	lvx		v24,$x00,$key_		# pre-load round[1]
> -	?vperm		v31,v31,$twk5,$keyperm
> -	lvx		v25,$x10,$key_		# pre-load round[2]
> -
> -	 vperm		$in0,$inout,$inptail,$inpperm
> -	 subi		$inp,$inp,31		# undo "caller"
> -	vxor		$twk0,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out0,$in0,$twk0
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in1,$x10,$inp
> -	vxor		$twk1,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in1,$in1,$in1,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out1,$in1,$twk1
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in2,$x20,$inp
> -	 andi.		$taillen,$len,15
> -	vxor		$twk2,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in2,$in2,$in2,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out2,$in2,$twk2
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in3,$x30,$inp
> -	 sub		$len,$len,$taillen
> -	vxor		$twk3,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in3,$in3,$in3,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out3,$in3,$twk3
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in4,$x40,$inp
> -	 subi		$len,$len,0x60
> -	vxor		$twk4,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in4,$in4,$in4,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out4,$in4,$twk4
> -	vxor		$tweak,$tweak,$tmp
> -
> -	 lvx_u		$in5,$x50,$inp
> -	 addi		$inp,$inp,0x60
> -	vxor		$twk5,$tweak,$rndkey0
> -	vsrab		$tmp,$tweak,$seven	# next tweak value
> -	vaddubm		$tweak,$tweak,$tweak
> -	vsldoi		$tmp,$tmp,$tmp,15
> -	 le?vperm	$in5,$in5,$in5,$leperm
> -	vand		$tmp,$tmp,$eighty7
> -	 vxor		$out5,$in5,$twk5
> -	vxor		$tweak,$tweak,$tmp
> -
> -	vxor		v31,v31,$rndkey0
> -	mtctr		$rounds
> -	b		Loop_xts_dec6x
> -
> -.align	5
> -Loop_xts_dec6x:
> -	vncipher	$out0,$out0,v24
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -	vncipher	$out5,$out5,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vncipher	$out0,$out0,v25
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	vncipher	$out5,$out5,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_xts_dec6x
> -
> -	subic		$len,$len,96		# $len-=96
> -	 vxor		$in0,$twk0,v31		# xor with last round key
> -	vncipher	$out0,$out0,v24
> -	vncipher	$out1,$out1,v24
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk0,$tweak,$rndkey0
> -	 vaddubm	$tweak,$tweak,$tweak
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vncipher	$out4,$out4,v24
> -	vncipher	$out5,$out5,v24
> -
> -	subfe.		r0,r0,r0		# borrow?-1:0
> -	 vand		$tmp,$tmp,$eighty7
> -	vncipher	$out0,$out0,v25
> -	vncipher	$out1,$out1,v25
> -	 vxor		$tweak,$tweak,$tmp
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	 vxor		$in1,$twk1,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk1,$tweak,$rndkey0
> -	vncipher	$out4,$out4,v25
> -	vncipher	$out5,$out5,v25
> -
> -	and		r0,r0,$len
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vncipher	$out0,$out0,v26
> -	vncipher	$out1,$out1,v26
> -	 vand		$tmp,$tmp,$eighty7
> -	vncipher	$out2,$out2,v26
> -	vncipher	$out3,$out3,v26
> -	 vxor		$tweak,$tweak,$tmp
> -	vncipher	$out4,$out4,v26
> -	vncipher	$out5,$out5,v26
> -
> -	add		$inp,$inp,r0		# $inp is adjusted in such
> -						# way that at exit from the
> -						# loop inX-in5 are loaded
> -						# with last "words"
> -	 vxor		$in2,$twk2,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk2,$tweak,$rndkey0
> -	 vaddubm	$tweak,$tweak,$tweak
> -	vncipher	$out0,$out0,v27
> -	vncipher	$out1,$out1,v27
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vncipher	$out2,$out2,v27
> -	vncipher	$out3,$out3,v27
> -	 vand		$tmp,$tmp,$eighty7
> -	vncipher	$out4,$out4,v27
> -	vncipher	$out5,$out5,v27
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	 vxor		$tweak,$tweak,$tmp
> -	vncipher	$out0,$out0,v28
> -	vncipher	$out1,$out1,v28
> -	 vxor		$in3,$twk3,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk3,$tweak,$rndkey0
> -	vncipher	$out2,$out2,v28
> -	vncipher	$out3,$out3,v28
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vncipher	$out4,$out4,v28
> -	vncipher	$out5,$out5,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -	 vand		$tmp,$tmp,$eighty7
> -
> -	vncipher	$out0,$out0,v29
> -	vncipher	$out1,$out1,v29
> -	 vxor		$tweak,$tweak,$tmp
> -	vncipher	$out2,$out2,v29
> -	vncipher	$out3,$out3,v29
> -	 vxor		$in4,$twk4,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk4,$tweak,$rndkey0
> -	vncipher	$out4,$out4,v29
> -	vncipher	$out5,$out5,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -
> -	vncipher	$out0,$out0,v30
> -	vncipher	$out1,$out1,v30
> -	 vand		$tmp,$tmp,$eighty7
> -	vncipher	$out2,$out2,v30
> -	vncipher	$out3,$out3,v30
> -	 vxor		$tweak,$tweak,$tmp
> -	vncipher	$out4,$out4,v30
> -	vncipher	$out5,$out5,v30
> -	 vxor		$in5,$twk5,v31
> -	 vsrab		$tmp,$tweak,$seven	# next tweak value
> -	 vxor		$twk5,$tweak,$rndkey0
> -
> -	vncipherlast	$out0,$out0,$in0
> -	 lvx_u		$in0,$x00,$inp		# load next input block
> -	 vaddubm	$tweak,$tweak,$tweak
> -	 vsldoi		$tmp,$tmp,$tmp,15
> -	vncipherlast	$out1,$out1,$in1
> -	 lvx_u		$in1,$x10,$inp
> -	vncipherlast	$out2,$out2,$in2
> -	 le?vperm	$in0,$in0,$in0,$leperm
> -	 lvx_u		$in2,$x20,$inp
> -	 vand		$tmp,$tmp,$eighty7
> -	vncipherlast	$out3,$out3,$in3
> -	 le?vperm	$in1,$in1,$in1,$leperm
> -	 lvx_u		$in3,$x30,$inp
> -	vncipherlast	$out4,$out4,$in4
> -	 le?vperm	$in2,$in2,$in2,$leperm
> -	 lvx_u		$in4,$x40,$inp
> -	 vxor		$tweak,$tweak,$tmp
> -	vncipherlast	$out5,$out5,$in5
> -	 le?vperm	$in3,$in3,$in3,$leperm
> -	 lvx_u		$in5,$x50,$inp
> -	 addi		$inp,$inp,0x60
> -	 le?vperm	$in4,$in4,$in4,$leperm
> -	 le?vperm	$in5,$in5,$in5,$leperm
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	 vxor		$out0,$in0,$twk0
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	 vxor		$out1,$in1,$twk1
> -	le?vperm	$out3,$out3,$out3,$leperm
> -	stvx_u		$out2,$x20,$out
> -	 vxor		$out2,$in2,$twk2
> -	le?vperm	$out4,$out4,$out4,$leperm
> -	stvx_u		$out3,$x30,$out
> -	 vxor		$out3,$in3,$twk3
> -	le?vperm	$out5,$out5,$out5,$leperm
> -	stvx_u		$out4,$x40,$out
> -	 vxor		$out4,$in4,$twk4
> -	stvx_u		$out5,$x50,$out
> -	 vxor		$out5,$in5,$twk5
> -	addi		$out,$out,0x60
> -
> -	mtctr		$rounds
> -	beq		Loop_xts_dec6x		# did $len-=96 borrow?
> -
> -	addic.		$len,$len,0x60
> -	beq		Lxts_dec6x_zero
> -	cmpwi		$len,0x20
> -	blt		Lxts_dec6x_one
> -	nop
> -	beq		Lxts_dec6x_two
> -	cmpwi		$len,0x40
> -	blt		Lxts_dec6x_three
> -	nop
> -	beq		Lxts_dec6x_four
> -
> -Lxts_dec6x_five:
> -	vxor		$out0,$in1,$twk0
> -	vxor		$out1,$in2,$twk1
> -	vxor		$out2,$in3,$twk2
> -	vxor		$out3,$in4,$twk3
> -	vxor		$out4,$in5,$twk4
> -
> -	bl		_aesp8_xts_dec5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk5		# unused tweak
> -	vxor		$twk1,$tweak,$rndkey0
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	vxor		$out0,$in0,$twk1
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$leperm
> -	stvx_u		$out2,$x20,$out
> -	le?vperm	$out4,$out4,$out4,$leperm
> -	stvx_u		$out3,$x30,$out
> -	stvx_u		$out4,$x40,$out
> -	addi		$out,$out,0x50
> -	bne		Lxts_dec6x_steal
> -	b		Lxts_dec6x_done
> -
> -.align	4
> -Lxts_dec6x_four:
> -	vxor		$out0,$in2,$twk0
> -	vxor		$out1,$in3,$twk1
> -	vxor		$out2,$in4,$twk2
> -	vxor		$out3,$in5,$twk3
> -	vxor		$out4,$out4,$out4
> -
> -	bl		_aesp8_xts_dec5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk4		# unused tweak
> -	vmr		$twk1,$twk5
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	vxor		$out0,$in0,$twk5
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	le?vperm	$out3,$out3,$out3,$leperm
> -	stvx_u		$out2,$x20,$out
> -	stvx_u		$out3,$x30,$out
> -	addi		$out,$out,0x40
> -	bne		Lxts_dec6x_steal
> -	b		Lxts_dec6x_done
> -
> -.align	4
> -Lxts_dec6x_three:
> -	vxor		$out0,$in3,$twk0
> -	vxor		$out1,$in4,$twk1
> -	vxor		$out2,$in5,$twk2
> -	vxor		$out3,$out3,$out3
> -	vxor		$out4,$out4,$out4
> -
> -	bl		_aesp8_xts_dec5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk3		# unused tweak
> -	vmr		$twk1,$twk4
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	vxor		$out0,$in0,$twk4
> -	le?vperm	$out2,$out2,$out2,$leperm
> -	stvx_u		$out1,$x10,$out
> -	stvx_u		$out2,$x20,$out
> -	addi		$out,$out,0x30
> -	bne		Lxts_dec6x_steal
> -	b		Lxts_dec6x_done
> -
> -.align	4
> -Lxts_dec6x_two:
> -	vxor		$out0,$in4,$twk0
> -	vxor		$out1,$in5,$twk1
> -	vxor		$out2,$out2,$out2
> -	vxor		$out3,$out3,$out3
> -	vxor		$out4,$out4,$out4
> -
> -	bl		_aesp8_xts_dec5x
> -
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	vmr		$twk0,$twk2		# unused tweak
> -	vmr		$twk1,$twk3
> -	le?vperm	$out1,$out1,$out1,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	vxor		$out0,$in0,$twk3
> -	stvx_u		$out1,$x10,$out
> -	addi		$out,$out,0x20
> -	bne		Lxts_dec6x_steal
> -	b		Lxts_dec6x_done
> -
> -.align	4
> -Lxts_dec6x_one:
> -	vxor		$out0,$in5,$twk0
> -	nop
> -Loop_xts_dec1x:
> -	vncipher	$out0,$out0,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vncipher	$out0,$out0,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Loop_xts_dec1x
> -
> -	subi		r0,$taillen,1
> -	vncipher	$out0,$out0,v24
> -
> -	andi.		r0,r0,16
> -	cmpwi		$taillen,0
> -	vncipher	$out0,$out0,v25
> -
> -	sub		$inp,$inp,r0
> -	vncipher	$out0,$out0,v26
> -
> -	lvx_u		$in0,0,$inp
> -	vncipher	$out0,$out0,v27
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vncipher	$out0,$out0,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -
> -	vncipher	$out0,$out0,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vxor		$twk0,$twk0,v31
> -
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vncipher	$out0,$out0,v30
> -
> -	mtctr		$rounds
> -	vncipherlast	$out0,$out0,$twk0
> -
> -	vmr		$twk0,$twk1		# unused tweak
> -	vmr		$twk1,$twk2
> -	le?vperm	$out0,$out0,$out0,$leperm
> -	stvx_u		$out0,$x00,$out		# store output
> -	addi		$out,$out,0x10
> -	vxor		$out0,$in0,$twk2
> -	bne		Lxts_dec6x_steal
> -	b		Lxts_dec6x_done
> -
> -.align	4
> -Lxts_dec6x_zero:
> -	cmpwi		$taillen,0
> -	beq		Lxts_dec6x_done
> -
> -	lvx_u		$in0,0,$inp
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vxor		$out0,$in0,$twk1
> -Lxts_dec6x_steal:
> -	vncipher	$out0,$out0,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vncipher	$out0,$out0,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		Lxts_dec6x_steal
> -
> -	add		$inp,$inp,$taillen
> -	vncipher	$out0,$out0,v24
> -
> -	cmpwi		$taillen,0
> -	vncipher	$out0,$out0,v25
> -
> -	lvx_u		$in0,0,$inp
> -	vncipher	$out0,$out0,v26
> -
> -	lvsr		$inpperm,0,$taillen	# $in5 is no more
> -	vncipher	$out0,$out0,v27
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vncipher	$out0,$out0,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -
> -	vncipher	$out0,$out0,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vxor		$twk1,$twk1,v31
> -
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vncipher	$out0,$out0,v30
> -
> -	vperm		$in0,$in0,$in0,$inpperm
> -	vncipherlast	$tmp,$out0,$twk1
> -
> -	le?vperm	$out0,$tmp,$tmp,$leperm
> -	le?stvx_u	$out0,0,$out
> -	be?stvx_u	$tmp,0,$out
> -
> -	vxor		$out0,$out0,$out0
> -	vspltisb	$out1,-1
> -	vperm		$out0,$out0,$out1,$inpperm
> -	vsel		$out0,$in0,$tmp,$out0
> -	vxor		$out0,$out0,$twk0
> -
> -	subi		r30,$out,1
> -	mtctr		$taillen
> -Loop_xts_dec6x_steal:
> -	lbzu		r0,1(r30)
> -	stb		r0,16(r30)
> -	bdnz		Loop_xts_dec6x_steal
> -
> -	li		$taillen,0
> -	mtctr		$rounds
> -	b		Loop_xts_dec1x		# one more time...
> -
> -.align	4
> -Lxts_dec6x_done:
> -	${UCMP}i	$ivp,0
> -	beq		Lxts_dec6x_ret
> -
> -	vxor		$tweak,$twk0,$rndkey0
> -	le?vperm	$tweak,$tweak,$tweak,$leperm
> -	stvx_u		$tweak,0,$ivp
> -
> -Lxts_dec6x_ret:
> -	mtlr		r11
> -	li		r10,`$FRAME+15`
> -	li		r11,`$FRAME+31`
> -	stvx		$seven,r10,$sp		# wipe copies of round keys
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$seven,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$seven,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -	stvx		$seven,r10,$sp
> -	addi		r10,r10,32
> -	stvx		$seven,r11,$sp
> -	addi		r11,r11,32
> -
> -	mtspr		256,$vrsave
> -	lvx		v20,r10,$sp		# ABI says so
> -	addi		r10,r10,32
> -	lvx		v21,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v22,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v23,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v24,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v25,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v26,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v27,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v28,r10,$sp
> -	addi		r10,r10,32
> -	lvx		v29,r11,$sp
> -	addi		r11,r11,32
> -	lvx		v30,r10,$sp
> -	lvx		v31,r11,$sp
> -	$POP		r26,`$FRAME+21*16+0*$SIZE_T`($sp)
> -	$POP		r27,`$FRAME+21*16+1*$SIZE_T`($sp)
> -	$POP		r28,`$FRAME+21*16+2*$SIZE_T`($sp)
> -	$POP		r29,`$FRAME+21*16+3*$SIZE_T`($sp)
> -	$POP		r30,`$FRAME+21*16+4*$SIZE_T`($sp)
> -	$POP		r31,`$FRAME+21*16+5*$SIZE_T`($sp)
> -	addi		$sp,$sp,`$FRAME+21*16+6*$SIZE_T`
> -	blr
> -	.long		0
> -	.byte		0,12,0x04,1,0x80,6,6,0
> -	.long		0
> -
> -.align	5
> -_aesp8_xts_dec5x:
> -	vncipher	$out0,$out0,v24
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -	lvx		v24,$x20,$key_		# round[3]
> -	addi		$key_,$key_,0x20
> -
> -	vncipher	$out0,$out0,v25
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	lvx		v25,$x10,$key_		# round[4]
> -	bdnz		_aesp8_xts_dec5x
> -
> -	subi		r0,$taillen,1
> -	vncipher	$out0,$out0,v24
> -	vncipher	$out1,$out1,v24
> -	vncipher	$out2,$out2,v24
> -	vncipher	$out3,$out3,v24
> -	vncipher	$out4,$out4,v24
> -
> -	andi.		r0,r0,16
> -	cmpwi		$taillen,0
> -	vncipher	$out0,$out0,v25
> -	vncipher	$out1,$out1,v25
> -	vncipher	$out2,$out2,v25
> -	vncipher	$out3,$out3,v25
> -	vncipher	$out4,$out4,v25
> -	 vxor		$twk0,$twk0,v31
> -
> -	sub		$inp,$inp,r0
> -	vncipher	$out0,$out0,v26
> -	vncipher	$out1,$out1,v26
> -	vncipher	$out2,$out2,v26
> -	vncipher	$out3,$out3,v26
> -	vncipher	$out4,$out4,v26
> -	 vxor		$in1,$twk1,v31
> -
> -	vncipher	$out0,$out0,v27
> -	lvx_u		$in0,0,$inp
> -	vncipher	$out1,$out1,v27
> -	vncipher	$out2,$out2,v27
> -	vncipher	$out3,$out3,v27
> -	vncipher	$out4,$out4,v27
> -	 vxor		$in2,$twk2,v31
> -
> -	addi		$key_,$sp,$FRAME+15	# rewind $key_
> -	vncipher	$out0,$out0,v28
> -	vncipher	$out1,$out1,v28
> -	vncipher	$out2,$out2,v28
> -	vncipher	$out3,$out3,v28
> -	vncipher	$out4,$out4,v28
> -	lvx		v24,$x00,$key_		# re-pre-load round[1]
> -	 vxor		$in3,$twk3,v31
> -
> -	vncipher	$out0,$out0,v29
> -	le?vperm	$in0,$in0,$in0,$leperm
> -	vncipher	$out1,$out1,v29
> -	vncipher	$out2,$out2,v29
> -	vncipher	$out3,$out3,v29
> -	vncipher	$out4,$out4,v29
> -	lvx		v25,$x10,$key_		# re-pre-load round[2]
> -	 vxor		$in4,$twk4,v31
> -
> -	vncipher	$out0,$out0,v30
> -	vncipher	$out1,$out1,v30
> -	vncipher	$out2,$out2,v30
> -	vncipher	$out3,$out3,v30
> -	vncipher	$out4,$out4,v30
> -
> -	vncipherlast	$out0,$out0,$twk0
> -	vncipherlast	$out1,$out1,$in1
> -	vncipherlast	$out2,$out2,$in2
> -	vncipherlast	$out3,$out3,$in3
> -	vncipherlast	$out4,$out4,$in4
> -	mtctr		$rounds
> -	blr
> -        .long   	0
> -        .byte   	0,12,0x14,0,0,0,0,0
> -___
> -}}	}}}
> -
> -my $consts=1;
> -foreach(split("\n",$code)) {
> -        s/\`([^\`]*)\`/eval($1)/geo;
> -
> -	# constants table endian-specific conversion
> -	if ($consts && m/\.(long|byte)\s+(.+)\s+(\?[a-z]*)$/o) {
> -	    my $conv=$3;
> -	    my @bytes=();
> -
> -	    # convert to endian-agnostic format
> -	    if ($1 eq "long") {
> -	      foreach (split(/,\s*/,$2)) {
> -		my $l = /^0/?oct:int;
> -		push @bytes,($l>>24)&0xff,($l>>16)&0xff,($l>>8)&0xff,$l&0xff;
> -	      }
> -	    } else {
> -		@bytes = map(/^0/?oct:int,split(/,\s*/,$2));
> -	    }
> -
> -	    # little-endian conversion
> -	    if ($flavour =~ /le$/o) {
> -		SWITCH: for($conv)  {
> -		    /\?inv/ && do   { @bytes=map($_^0xf,@bytes); last; };
> -		    /\?rev/ && do   { @bytes=reverse(@bytes);    last; };
> -		}
> -	    }
> -
> -	    #emit
> -	    print ".byte\t",join(',',map (sprintf("0x%02x",$_),@bytes)),"\n";
> -	    next;
> -	}
> -	$consts=0 if (m/Lconsts:/o);	# end of table
> -
> -	# instructions prefixed with '?' are endian-specific and need
> -	# to be adjusted accordingly...
> -	if ($flavour =~ /le$/o) {	# little-endian
> -	    s/le\?//o		or
> -	    s/be\?/#be#/o	or
> -	    s/\?lvsr/lvsl/o	or
> -	    s/\?lvsl/lvsr/o	or
> -	    s/\?(vperm\s+v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+,\s*)(v[0-9]+)/$1$3$2$4/o or
> -	    s/\?(vsldoi\s+v[0-9]+,\s*)(v[0-9]+,)\s*(v[0-9]+,\s*)([0-9]+)/$1$3$2 16-$4/o or
> -	    s/\?(vspltw\s+v[0-9]+,\s*)(v[0-9]+,)\s*([0-9])/$1$2 3-$3/o;
> -	} else {			# big-endian
> -	    s/le\?/#le#/o	or
> -	    s/be\?//o		or
> -	    s/\?([a-z]+)/$1/o;
> -	}
> -
> -        print $_,"\n";
> -}
> -
> -close STDOUT;
> diff --git a/drivers/crypto/vmx/ghash.c b/drivers/crypto/vmx/ghash.c
> deleted file mode 100644
> index 27a94a119009..000000000000
> --- a/drivers/crypto/vmx/ghash.c
> +++ /dev/null
> @@ -1,227 +0,0 @@
> -/**
> - * GHASH routines supporting VMX instructions on the Power 8
> - *
> - * Copyright (C) 2015 International Business Machines Inc.
> - *
> - * 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; version 2 only.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - * Author: Marcelo Henrique Cerri <mhcerri@xxxxxxxxxx>
> - */
> -
> -#include <linux/types.h>
> -#include <linux/err.h>
> -#include <linux/crypto.h>
> -#include <linux/delay.h>
> -#include <linux/hardirq.h>
> -#include <asm/switch_to.h>
> -#include <crypto/aes.h>
> -#include <crypto/ghash.h>
> -#include <crypto/scatterwalk.h>
> -#include <crypto/internal/hash.h>
> -#include <crypto/b128ops.h>
> -
> -#define IN_INTERRUPT in_interrupt()
> -
> -void gcm_init_p8(u128 htable[16], const u64 Xi[2]);
> -void gcm_gmult_p8(u64 Xi[2], const u128 htable[16]);
> -void gcm_ghash_p8(u64 Xi[2], const u128 htable[16],
> -		  const u8 *in, size_t len);
> -
> -struct p8_ghash_ctx {
> -	u128 htable[16];
> -	struct crypto_shash *fallback;
> -};
> -
> -struct p8_ghash_desc_ctx {
> -	u64 shash[2];
> -	u8 buffer[GHASH_DIGEST_SIZE];
> -	int bytes;
> -	struct shash_desc fallback_desc;
> -};
> -
> -static int p8_ghash_init_tfm(struct crypto_tfm *tfm)
> -{
> -	const char *alg = "ghash-generic";
> -	struct crypto_shash *fallback;
> -	struct crypto_shash *shash_tfm = __crypto_shash_cast(tfm);
> -	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	fallback = crypto_alloc_shash(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
> -	if (IS_ERR(fallback)) {
> -		printk(KERN_ERR
> -		       "Failed to allocate transformation for '%s': %ld\n",
> -		       alg, PTR_ERR(fallback));
> -		return PTR_ERR(fallback);
> -	}
> -	printk(KERN_INFO "Using '%s' as fallback implementation.\n",
> -	       crypto_tfm_alg_driver_name(crypto_shash_tfm(fallback)));
> -
> -	crypto_shash_set_flags(fallback,
> -			       crypto_shash_get_flags((struct crypto_shash
> -						       *) tfm));
> -
> -	/* Check if the descsize defined in the algorithm is still enough. */
> -	if (shash_tfm->descsize < sizeof(struct p8_ghash_desc_ctx)
> -	    + crypto_shash_descsize(fallback)) {
> -		printk(KERN_ERR
> -		       "Desc size of the fallback implementation (%s) does not match the expected value: %lu vs %u\n",
> -		       alg,
> -		       shash_tfm->descsize - sizeof(struct p8_ghash_desc_ctx),
> -		       crypto_shash_descsize(fallback));
> -		return -EINVAL;
> -	}
> -	ctx->fallback = fallback;
> -
> -	return 0;
> -}
> -
> -static void p8_ghash_exit_tfm(struct crypto_tfm *tfm)
> -{
> -	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(tfm);
> -
> -	if (ctx->fallback) {
> -		crypto_free_shash(ctx->fallback);
> -		ctx->fallback = NULL;
> -	}
> -}
> -
> -static int p8_ghash_init(struct shash_desc *desc)
> -{
> -	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm));
> -	struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);
> -
> -	dctx->bytes = 0;
> -	memset(dctx->shash, 0, GHASH_DIGEST_SIZE);
> -	dctx->fallback_desc.tfm = ctx->fallback;
> -	dctx->fallback_desc.flags = desc->flags;
> -	return crypto_shash_init(&dctx->fallback_desc);
> -}
> -
> -static int p8_ghash_setkey(struct crypto_shash *tfm, const u8 *key,
> -			   unsigned int keylen)
> -{
> -	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(tfm));
> -
> -	if (keylen != GHASH_BLOCK_SIZE)
> -		return -EINVAL;
> -
> -	preempt_disable();
> -	pagefault_disable();
> -	enable_kernel_vsx();
> -	gcm_init_p8(ctx->htable, (const u64 *) key);
> -	disable_kernel_vsx();
> -	pagefault_enable();
> -	preempt_enable();
> -	return crypto_shash_setkey(ctx->fallback, key, keylen);
> -}
> -
> -static int p8_ghash_update(struct shash_desc *desc,
> -			   const u8 *src, unsigned int srclen)
> -{
> -	unsigned int len;
> -	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm));
> -	struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);
> -
> -	if (IN_INTERRUPT) {
> -		return crypto_shash_update(&dctx->fallback_desc, src,
> -					   srclen);
> -	} else {
> -		if (dctx->bytes) {
> -			if (dctx->bytes + srclen < GHASH_DIGEST_SIZE) {
> -				memcpy(dctx->buffer + dctx->bytes, src,
> -				       srclen);
> -				dctx->bytes += srclen;
> -				return 0;
> -			}
> -			memcpy(dctx->buffer + dctx->bytes, src,
> -			       GHASH_DIGEST_SIZE - dctx->bytes);
> -			preempt_disable();
> -			pagefault_disable();
> -			enable_kernel_vsx();
> -			gcm_ghash_p8(dctx->shash, ctx->htable,
> -				     dctx->buffer, GHASH_DIGEST_SIZE);
> -			disable_kernel_vsx();
> -			pagefault_enable();
> -			preempt_enable();
> -			src += GHASH_DIGEST_SIZE - dctx->bytes;
> -			srclen -= GHASH_DIGEST_SIZE - dctx->bytes;
> -			dctx->bytes = 0;
> -		}
> -		len = srclen & ~(GHASH_DIGEST_SIZE - 1);
> -		if (len) {
> -			preempt_disable();
> -			pagefault_disable();
> -			enable_kernel_vsx();
> -			gcm_ghash_p8(dctx->shash, ctx->htable, src, len);
> -			disable_kernel_vsx();
> -			pagefault_enable();
> -			preempt_enable();
> -			src += len;
> -			srclen -= len;
> -		}
> -		if (srclen) {
> -			memcpy(dctx->buffer, src, srclen);
> -			dctx->bytes = srclen;
> -		}
> -		return 0;
> -	}
> -}
> -
> -static int p8_ghash_final(struct shash_desc *desc, u8 *out)
> -{
> -	int i;
> -	struct p8_ghash_ctx *ctx = crypto_tfm_ctx(crypto_shash_tfm(desc->tfm));
> -	struct p8_ghash_desc_ctx *dctx = shash_desc_ctx(desc);
> -
> -	if (IN_INTERRUPT) {
> -		return crypto_shash_final(&dctx->fallback_desc, out);
> -	} else {
> -		if (dctx->bytes) {
> -			for (i = dctx->bytes; i < GHASH_DIGEST_SIZE; i++)
> -				dctx->buffer[i] = 0;
> -			preempt_disable();
> -			pagefault_disable();
> -			enable_kernel_vsx();
> -			gcm_ghash_p8(dctx->shash, ctx->htable,
> -				     dctx->buffer, GHASH_DIGEST_SIZE);
> -			disable_kernel_vsx();
> -			pagefault_enable();
> -			preempt_enable();
> -			dctx->bytes = 0;
> -		}
> -		memcpy(out, dctx->shash, GHASH_DIGEST_SIZE);
> -		return 0;
> -	}
> -}
> -
> -struct shash_alg p8_ghash_alg = {
> -	.digestsize = GHASH_DIGEST_SIZE,
> -	.init = p8_ghash_init,
> -	.update = p8_ghash_update,
> -	.final = p8_ghash_final,
> -	.setkey = p8_ghash_setkey,
> -	.descsize = sizeof(struct p8_ghash_desc_ctx)
> -		+ sizeof(struct ghash_desc_ctx),
> -	.base = {
> -		 .cra_name = "ghash",
> -		 .cra_driver_name = "p8_ghash",
> -		 .cra_priority = 1000,
> -		 .cra_flags = CRYPTO_ALG_TYPE_SHASH | CRYPTO_ALG_NEED_FALLBACK,
> -		 .cra_blocksize = GHASH_BLOCK_SIZE,
> -		 .cra_ctxsize = sizeof(struct p8_ghash_ctx),
> -		 .cra_module = THIS_MODULE,
> -		 .cra_init = p8_ghash_init_tfm,
> -		 .cra_exit = p8_ghash_exit_tfm,
> -	},
> -};
> diff --git a/drivers/crypto/vmx/ghashp8-ppc.pl b/drivers/crypto/vmx/ghashp8-ppc.pl
> deleted file mode 100644
> index d8429cb71f02..000000000000
> --- a/drivers/crypto/vmx/ghashp8-ppc.pl
> +++ /dev/null
> @@ -1,234 +0,0 @@
> -#!/usr/bin/env perl
> -#
> -# ====================================================================
> -# Written by Andy Polyakov <appro@xxxxxxxxxxx> for the OpenSSL
> -# project. The module is, however, dual licensed under OpenSSL and
> -# CRYPTOGAMS licenses depending on where you obtain it. For further
> -# details see http://www.openssl.org/~appro/cryptogams/.
> -# ====================================================================
> -#
> -# GHASH for for PowerISA v2.07.
> -#
> -# July 2014
> -#
> -# Accurate performance measurements are problematic, because it's
> -# always virtualized setup with possibly throttled processor.
> -# Relative comparison is therefore more informative. This initial
> -# version is ~2.1x slower than hardware-assisted AES-128-CTR, ~12x
> -# faster than "4-bit" integer-only compiler-generated 64-bit code.
> -# "Initial version" means that there is room for futher improvement.
> -
> -$flavour=shift;
> -$output =shift;
> -
> -if ($flavour =~ /64/) {
> -	$SIZE_T=8;
> -	$LRSAVE=2*$SIZE_T;
> -	$STU="stdu";
> -	$POP="ld";
> -	$PUSH="std";
> -} elsif ($flavour =~ /32/) {
> -	$SIZE_T=4;
> -	$LRSAVE=$SIZE_T;
> -	$STU="stwu";
> -	$POP="lwz";
> -	$PUSH="stw";
> -} else { die "nonsense $flavour"; }
> -
> -$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
> -( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
> -( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
> -die "can't locate ppc-xlate.pl";
> -
> -open STDOUT,"| $^X $xlate $flavour $output" || die "can't call $xlate: $!";
> -
> -my ($Xip,$Htbl,$inp,$len)=map("r$_",(3..6));	# argument block
> -
> -my ($Xl,$Xm,$Xh,$IN)=map("v$_",(0..3));
> -my ($zero,$t0,$t1,$t2,$xC2,$H,$Hh,$Hl,$lemask)=map("v$_",(4..12));
> -my $vrsave="r12";
> -
> -$code=<<___;
> -.machine	"any"
> -
> -.text
> -
> -.globl	.gcm_init_p8
> -	lis		r0,0xfff0
> -	li		r8,0x10
> -	mfspr		$vrsave,256
> -	li		r9,0x20
> -	mtspr		256,r0
> -	li		r10,0x30
> -	lvx_u		$H,0,r4			# load H
> -	le?xor		r7,r7,r7
> -	le?addi		r7,r7,0x8		# need a vperm start with 08
> -	le?lvsr		5,0,r7
> -	le?vspltisb	6,0x0f
> -	le?vxor		5,5,6			# set a b-endian mask
> -	le?vperm	$H,$H,$H,5
> -
> -	vspltisb	$xC2,-16		# 0xf0
> -	vspltisb	$t0,1			# one
> -	vaddubm		$xC2,$xC2,$xC2		# 0xe0
> -	vxor		$zero,$zero,$zero
> -	vor		$xC2,$xC2,$t0		# 0xe1
> -	vsldoi		$xC2,$xC2,$zero,15	# 0xe1...
> -	vsldoi		$t1,$zero,$t0,1		# ...1
> -	vaddubm		$xC2,$xC2,$xC2		# 0xc2...
> -	vspltisb	$t2,7
> -	vor		$xC2,$xC2,$t1		# 0xc2....01
> -	vspltb		$t1,$H,0		# most significant byte
> -	vsl		$H,$H,$t0		# H<<=1
> -	vsrab		$t1,$t1,$t2		# broadcast carry bit
> -	vand		$t1,$t1,$xC2
> -	vxor		$H,$H,$t1		# twisted H
> -
> -	vsldoi		$H,$H,$H,8		# twist even more ...
> -	vsldoi		$xC2,$zero,$xC2,8	# 0xc2.0
> -	vsldoi		$Hl,$zero,$H,8		# ... and split
> -	vsldoi		$Hh,$H,$zero,8
> -
> -	stvx_u		$xC2,0,r3		# save pre-computed table
> -	stvx_u		$Hl,r8,r3
> -	stvx_u		$H, r9,r3
> -	stvx_u		$Hh,r10,r3
> -
> -	mtspr		256,$vrsave
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0,0,2,0
> -	.long		0
> -.size	.gcm_init_p8,.-.gcm_init_p8
> -
> -.globl	.gcm_gmult_p8
> -	lis		r0,0xfff8
> -	li		r8,0x10
> -	mfspr		$vrsave,256
> -	li		r9,0x20
> -	mtspr		256,r0
> -	li		r10,0x30
> -	lvx_u		$IN,0,$Xip		# load Xi
> -
> -	lvx_u		$Hl,r8,$Htbl		# load pre-computed table
> -	 le?lvsl	$lemask,r0,r0
> -	lvx_u		$H, r9,$Htbl
> -	 le?vspltisb	$t0,0x07
> -	lvx_u		$Hh,r10,$Htbl
> -	 le?vxor	$lemask,$lemask,$t0
> -	lvx_u		$xC2,0,$Htbl
> -	 le?vperm	$IN,$IN,$IN,$lemask
> -	vxor		$zero,$zero,$zero
> -
> -	vpmsumd		$Xl,$IN,$Hl		# H.loïXi.lo
> -	vpmsumd		$Xm,$IN,$H		# H.hiïXi.lo+H.loïXi.hi
> -	vpmsumd		$Xh,$IN,$Hh		# H.hiïXi.hi
> -
> -	vpmsumd		$t2,$Xl,$xC2		# 1st phase
> -
> -	vsldoi		$t0,$Xm,$zero,8
> -	vsldoi		$t1,$zero,$Xm,8
> -	vxor		$Xl,$Xl,$t0
> -	vxor		$Xh,$Xh,$t1
> -
> -	vsldoi		$Xl,$Xl,$Xl,8
> -	vxor		$Xl,$Xl,$t2
> -
> -	vsldoi		$t1,$Xl,$Xl,8		# 2nd phase
> -	vpmsumd		$Xl,$Xl,$xC2
> -	vxor		$t1,$t1,$Xh
> -	vxor		$Xl,$Xl,$t1
> -
> -	le?vperm	$Xl,$Xl,$Xl,$lemask
> -	stvx_u		$Xl,0,$Xip		# write out Xi
> -
> -	mtspr		256,$vrsave
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0,0,2,0
> -	.long		0
> -.size	.gcm_gmult_p8,.-.gcm_gmult_p8
> -
> -.globl	.gcm_ghash_p8
> -	lis		r0,0xfff8
> -	li		r8,0x10
> -	mfspr		$vrsave,256
> -	li		r9,0x20
> -	mtspr		256,r0
> -	li		r10,0x30
> -	lvx_u		$Xl,0,$Xip		# load Xi
> -
> -	lvx_u		$Hl,r8,$Htbl		# load pre-computed table
> -	 le?lvsl	$lemask,r0,r0
> -	lvx_u		$H, r9,$Htbl
> -	 le?vspltisb	$t0,0x07
> -	lvx_u		$Hh,r10,$Htbl
> -	 le?vxor	$lemask,$lemask,$t0
> -	lvx_u		$xC2,0,$Htbl
> -	 le?vperm	$Xl,$Xl,$Xl,$lemask
> -	vxor		$zero,$zero,$zero
> -
> -	lvx_u		$IN,0,$inp
> -	addi		$inp,$inp,16
> -	subi		$len,$len,16
> -	 le?vperm	$IN,$IN,$IN,$lemask
> -	vxor		$IN,$IN,$Xl
> -	b		Loop
> -
> -.align	5
> -Loop:
> -	 subic		$len,$len,16
> -	vpmsumd		$Xl,$IN,$Hl		# H.loïXi.lo
> -	 subfe.		r0,r0,r0		# borrow?-1:0
> -	vpmsumd		$Xm,$IN,$H		# H.hiïXi.lo+H.loïXi.hi
> -	 and		r0,r0,$len
> -	vpmsumd		$Xh,$IN,$Hh		# H.hiïXi.hi
> -	 add		$inp,$inp,r0
> -
> -	vpmsumd		$t2,$Xl,$xC2		# 1st phase
> -
> -	vsldoi		$t0,$Xm,$zero,8
> -	vsldoi		$t1,$zero,$Xm,8
> -	vxor		$Xl,$Xl,$t0
> -	vxor		$Xh,$Xh,$t1
> -
> -	vsldoi		$Xl,$Xl,$Xl,8
> -	vxor		$Xl,$Xl,$t2
> -	 lvx_u		$IN,0,$inp
> -	 addi		$inp,$inp,16
> -
> -	vsldoi		$t1,$Xl,$Xl,8		# 2nd phase
> -	vpmsumd		$Xl,$Xl,$xC2
> -	 le?vperm	$IN,$IN,$IN,$lemask
> -	vxor		$t1,$t1,$Xh
> -	vxor		$IN,$IN,$t1
> -	vxor		$IN,$IN,$Xl
> -	beq		Loop			# did $len-=16 borrow?
> -
> -	vxor		$Xl,$Xl,$t1
> -	le?vperm	$Xl,$Xl,$Xl,$lemask
> -	stvx_u		$Xl,0,$Xip		# write out Xi
> -
> -	mtspr		256,$vrsave
> -	blr
> -	.long		0
> -	.byte		0,12,0x14,0,0,0,4,0
> -	.long		0
> -.size	.gcm_ghash_p8,.-.gcm_ghash_p8
> -
> -.asciz  "GHASH for PowerISA 2.07, CRYPTOGAMS by <appro\@openssl.org>"
> -.align  2
> -___
> -
> -foreach (split("\n",$code)) {
> -	if ($flavour =~ /le$/o) {	# little-endian
> -	    s/le\?//o		or
> -	    s/be\?/#be#/o;
> -	} else {
> -	    s/le\?/#le#/o	or
> -	    s/be\?//o;
> -	}
> -	print $_,"\n";
> -}
> -
> -close STDOUT; # enforce flush
> diff --git a/drivers/crypto/vmx/ppc-xlate.pl b/drivers/crypto/vmx/ppc-xlate.pl
> deleted file mode 100644
> index b18e67d0e065..000000000000
> --- a/drivers/crypto/vmx/ppc-xlate.pl
> +++ /dev/null
> @@ -1,228 +0,0 @@
> -#!/usr/bin/env perl
> -
> -# PowerPC assembler distiller by <appro>.
> -
> -my $flavour = shift;
> -my $output = shift;
> -open STDOUT,">$output" || die "can't open $output: $!";
> -
> -my %GLOBALS;
> -my $dotinlocallabels=($flavour=~/linux/)?1:0;
> -
> -################################################################
> -# directives which need special treatment on different platforms
> -################################################################
> -my $globl = sub {
> -    my $junk = shift;
> -    my $name = shift;
> -    my $global = \$GLOBALS{$name};
> -    my $ret;
> -
> -    $name =~ s|^[\.\_]||;
> - 
> -    SWITCH: for ($flavour) {
> -	/aix/		&& do { $name = ".$name";
> -				last;
> -			      };
> -	/osx/		&& do { $name = "_$name";
> -				last;
> -			      };
> -	/linux/
> -			&& do {	$ret = "_GLOBAL($name)";
> -				last;
> -			      };
> -    }
> -
> -    $ret = ".globl	$name\nalign 5\n$name:" if (!$ret);
> -    $$global = $name;
> -    $ret;
> -};
> -my $text = sub {
> -    my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
> -    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64le/);
> -    $ret;
> -};
> -my $machine = sub {
> -    my $junk = shift;
> -    my $arch = shift;
> -    if ($flavour =~ /osx/)
> -    {	$arch =~ s/\"//g;
> -	$arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
> -    }
> -    ".machine	$arch";
> -};
> -my $size = sub {
> -    if ($flavour =~ /linux/)
> -    {	shift;
> -	my $name = shift; $name =~ s|^[\.\_]||;
> -	my $ret  = ".size	$name,.-".($flavour=~/64$/?".":"").$name;
> -	$ret .= "\n.size	.$name,.-.$name" if ($flavour=~/64$/);
> -	$ret;
> -    }
> -    else
> -    {	"";	}
> -};
> -my $asciz = sub {
> -    shift;
> -    my $line = join(",",@_);
> -    if ($line =~ /^"(.*)"$/)
> -    {	".byte	" . join(",",unpack("C*",$1),0) . "\n.align	2";	}
> -    else
> -    {	"";	}
> -};
> -my $quad = sub {
> -    shift;
> -    my @ret;
> -    my ($hi,$lo);
> -    for (@_) {
> -	if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io)
> -	{  $hi=$1?"0x$1":"0"; $lo="0x$2";  }
> -	elsif (/^([0-9]+)$/o)
> -	{  $hi=$1>>32; $lo=$1&0xffffffff;  } # error-prone with 32-bit perl
> -	else
> -	{  $hi=undef; $lo=$_; }
> -
> -	if (defined($hi))
> -	{  push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo");  }
> -	else
> -	{  push(@ret,".quad	$lo");  }
> -    }
> -    join("\n",@ret);
> -};
> -
> -################################################################
> -# simplified mnemonics not handled by at least one assembler
> -################################################################
> -my $cmplw = sub {
> -    my $f = shift;
> -    my $cr = 0; $cr = shift if ($#_>1);
> -    # Some out-of-date 32-bit GNU assembler just can't handle cmplw...
> -    ($flavour =~ /linux.*32/) ?
> -	"	.long	".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 :
> -	"	cmplw	".join(',',$cr,@_);
> -};
> -my $bdnz = sub {
> -    my $f = shift;
> -    my $bo = $f=~/[\+\-]/ ? 16+9 : 16;	# optional "to be taken" hint
> -    "	bc	$bo,0,".shift;
> -} if ($flavour!~/linux/);
> -my $bltlr = sub {
> -    my $f = shift;
> -    my $bo = $f=~/\-/ ? 12+2 : 12;	# optional "not to be taken" hint
> -    ($flavour =~ /linux/) ?		# GNU as doesn't allow most recent hints
> -	"	.long	".sprintf "0x%x",19<<26|$bo<<21|16<<1 :
> -	"	bclr	$bo,0";
> -};
> -my $bnelr = sub {
> -    my $f = shift;
> -    my $bo = $f=~/\-/ ? 4+2 : 4;	# optional "not to be taken" hint
> -    ($flavour =~ /linux/) ?		# GNU as doesn't allow most recent hints
> -	"	.long	".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 :
> -	"	bclr	$bo,2";
> -};
> -my $beqlr = sub {
> -    my $f = shift;
> -    my $bo = $f=~/-/ ? 12+2 : 12;	# optional "not to be taken" hint
> -    ($flavour =~ /linux/) ?		# GNU as doesn't allow most recent hints
> -	"	.long	".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 :
> -	"	bclr	$bo,2";
> -};
> -# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two
> -# arguments is 64, with "operand out of range" error.
> -my $extrdi = sub {
> -    my ($f,$ra,$rs,$n,$b) = @_;
> -    $b = ($b+$n)&63; $n = 64-$n;
> -    "	rldicl	$ra,$rs,$b,$n";
> -};
> -my $vmr = sub {
> -    my ($f,$vx,$vy) = @_;
> -    "	vor	$vx,$vy,$vy";
> -};
> -
> -# Some ABIs specify vrsave, special-purpose register #256, as reserved
> -# for system use.
> -my $no_vrsave = ($flavour =~ /linux-ppc64le/);
> -my $mtspr = sub {
> -    my ($f,$idx,$ra) = @_;
> -    if ($idx == 256 && $no_vrsave) {
> -	"	or	$ra,$ra,$ra";
> -    } else {
> -	"	mtspr	$idx,$ra";
> -    }
> -};
> -my $mfspr = sub {
> -    my ($f,$rd,$idx) = @_;
> -    if ($idx == 256 && $no_vrsave) {
> -	"	li	$rd,-1";
> -    } else {
> -	"	mfspr	$rd,$idx";
> -    }
> -};
> -
> -# PowerISA 2.06 stuff
> -sub vsxmem_op {
> -    my ($f, $vrt, $ra, $rb, $op) = @_;
> -    "	.long	".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1);
> -}
> -# made-up unaligned memory reference AltiVec/VMX instructions
> -my $lvx_u	= sub {	vsxmem_op(@_, 844); };	# lxvd2x
> -my $stvx_u	= sub {	vsxmem_op(@_, 972); };	# stxvd2x
> -my $lvdx_u	= sub {	vsxmem_op(@_, 588); };	# lxsdx
> -my $stvdx_u	= sub {	vsxmem_op(@_, 716); };	# stxsdx
> -my $lvx_4w	= sub { vsxmem_op(@_, 780); };	# lxvw4x
> -my $stvx_4w	= sub { vsxmem_op(@_, 908); };	# stxvw4x
> -
> -# PowerISA 2.07 stuff
> -sub vcrypto_op {
> -    my ($f, $vrt, $vra, $vrb, $op) = @_;
> -    "	.long	".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op;
> -}
> -my $vcipher	= sub { vcrypto_op(@_, 1288); };
> -my $vcipherlast	= sub { vcrypto_op(@_, 1289); };
> -my $vncipher	= sub { vcrypto_op(@_, 1352); };
> -my $vncipherlast= sub { vcrypto_op(@_, 1353); };
> -my $vsbox	= sub { vcrypto_op(@_, 0, 1480); };
> -my $vshasigmad	= sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); };
> -my $vshasigmaw	= sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); };
> -my $vpmsumb	= sub { vcrypto_op(@_, 1032); };
> -my $vpmsumd	= sub { vcrypto_op(@_, 1224); };
> -my $vpmsubh	= sub { vcrypto_op(@_, 1096); };
> -my $vpmsumw	= sub { vcrypto_op(@_, 1160); };
> -my $vaddudm	= sub { vcrypto_op(@_, 192);  };
> -my $vadduqm	= sub { vcrypto_op(@_, 256);  };
> -
> -my $mtsle	= sub {
> -    my ($f, $arg) = @_;
> -    "	.long	".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2);
> -};
> -
> -print "#include <asm/ppc_asm.h>\n" if $flavour =~ /linux/;
> -
> -while($line=<>) {
> -
> -    $line =~ s|[#!;].*$||;	# get rid of asm-style comments...
> -    $line =~ s|/\*.*\*/||;	# ... and C-style comments...
> -    $line =~ s|^\s+||;		# ... and skip white spaces in beginning...
> -    $line =~ s|\s+$||;		# ... and at the end
> -
> -    {
> -	$line =~ s|\b\.L(\w+)|L$1|g;	# common denominator for Locallabel
> -	$line =~ s|\bL(\w+)|\.L$1|g	if ($dotinlocallabels);
> -    }
> -
> -    {
> -	$line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||;
> -	my $c = $1; $c = "\t" if ($c eq "");
> -	my $mnemonic = $2;
> -	my $f = $3;
> -	my $opcode = eval("\$$mnemonic");
> -	$line =~ s/\b(c?[rf]|v|vs)([0-9]+)\b/$2/g if ($c ne "." and $flavour !~ /osx/);
> -	if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(',',$line)); }
> -	elsif ($mnemonic)           { $line = $c.$mnemonic.$f."\t".$line; }
> -    }
> -
> -    print $line if ($line);
> -    print "\n";
> -}
> -
> -close STDOUT;
> diff --git a/drivers/crypto/vmx/vmx.c b/drivers/crypto/vmx/vmx.c
> deleted file mode 100644
> index 31a98dc6f849..000000000000
> --- a/drivers/crypto/vmx/vmx.c
> +++ /dev/null
> @@ -1,88 +0,0 @@
> -/**
> - * Routines supporting VMX instructions on the Power 8
> - *
> - * Copyright (C) 2015 International Business Machines Inc.
> - *
> - * 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; version 2 only.
> - *
> - * This program is distributed in the hope that it will be useful,
> - * but WITHOUT ANY WARRANTY; without even the implied warranty of
> - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> - * GNU General Public License for more details.
> - *
> - * You should have received a copy of the GNU General Public License
> - * along with this program; if not, write to the Free Software
> - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> - *
> - * Author: Marcelo Henrique Cerri <mhcerri@xxxxxxxxxx>
> - */
> -
> -#include <linux/module.h>
> -#include <linux/moduleparam.h>
> -#include <linux/types.h>
> -#include <linux/err.h>
> -#include <linux/cpufeature.h>
> -#include <linux/crypto.h>
> -#include <asm/cputable.h>
> -#include <crypto/internal/hash.h>
> -
> -extern struct shash_alg p8_ghash_alg;
> -extern struct crypto_alg p8_aes_alg;
> -extern struct crypto_alg p8_aes_cbc_alg;
> -extern struct crypto_alg p8_aes_ctr_alg;
> -extern struct crypto_alg p8_aes_xts_alg;
> -static struct crypto_alg *algs[] = {
> -	&p8_aes_alg,
> -	&p8_aes_cbc_alg,
> -	&p8_aes_ctr_alg,
> -	&p8_aes_xts_alg,
> -	NULL,
> -};
> -
> -int __init p8_init(void)
> -{
> -	int ret = 0;
> -	struct crypto_alg **alg_it;
> -
> -	for (alg_it = algs; *alg_it; alg_it++) {
> -		ret = crypto_register_alg(*alg_it);
> -		printk(KERN_INFO "crypto_register_alg '%s' = %d\n",
> -		       (*alg_it)->cra_name, ret);
> -		if (ret) {
> -			for (alg_it--; alg_it >= algs; alg_it--)
> -				crypto_unregister_alg(*alg_it);
> -			break;
> -		}
> -	}
> -	if (ret)
> -		return ret;
> -
> -	ret = crypto_register_shash(&p8_ghash_alg);
> -	if (ret) {
> -		for (alg_it = algs; *alg_it; alg_it++)
> -			crypto_unregister_alg(*alg_it);
> -	}
> -	return ret;
> -}
> -
> -void __exit p8_exit(void)
> -{
> -	struct crypto_alg **alg_it;
> -
> -	for (alg_it = algs; *alg_it; alg_it++) {
> -		printk(KERN_INFO "Removing '%s'\n", (*alg_it)->cra_name);
> -		crypto_unregister_alg(*alg_it);
> -	}
> -	crypto_unregister_shash(&p8_ghash_alg);
> -}
> -
> -module_cpu_feature_match(PPC_MODULE_FEATURE_VEC_CRYPTO, p8_init);
> -module_exit(p8_exit);
> -
> -MODULE_AUTHOR("Marcelo Cerri<mhcerri@xxxxxxxxxx>");
> -MODULE_DESCRIPTION("IBM VMX cryptographic acceleration instructions "
> -		   "support on Power 8");
> -MODULE_LICENSE("GPL");
> -MODULE_VERSION("1.0.0");
>