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/* Rijndael (AES) for GnuPG - PowerPC Vector Crypto AES implementation
* Copyright (C) 2019 Shawn Landden <shawn@git.icu>
* Copyright (C) 2019-2020 Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* This file is part of Libgcrypt.
*
* Libgcrypt is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* Libgcrypt 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
*
* Alternatively, this code may be used in OpenSSL from The OpenSSL Project,
* and Cryptogams by Andy Polyakov, and if made part of a release of either
* or both projects, is thereafter dual-licensed under the license said project
* is released under.
*/
#include <config.h>
#include "rijndael-internal.h"
#include "cipher-internal.h"
#include "bufhelp.h"
#ifdef USE_PPC_CRYPTO_WITH_PPC9LE
#include "rijndael-ppc-common.h"
static ASM_FUNC_ATTR_INLINE block
asm_load_be_const(void)
{
static const block vec_dummy = { 0 };
return vec_dummy;
}
static ASM_FUNC_ATTR_INLINE block
asm_be_swap(block vec, block be_bswap_const)
{
(void)be_bswap_const;
return vec;
}
static ASM_FUNC_ATTR_INLINE block
asm_load_be_noswap(unsigned long offset, const void *ptr)
{
block vec;
#if __GNUC__ >= 4
if (__builtin_constant_p (offset) && offset == 0)
__asm__ volatile ("lxvb16x %x0,0,%1\n\t"
: "=wa" (vec)
: "r" ((uintptr_t)ptr)
: "memory");
else
#endif
__asm__ volatile ("lxvb16x %x0,%1,%2\n\t"
: "=wa" (vec)
: "r" (offset), "r" ((uintptr_t)ptr)
: "memory", "r0");
return vec;
}
static ASM_FUNC_ATTR_INLINE void
asm_store_be_noswap(block vec, unsigned long offset, void *ptr)
{
#if __GNUC__ >= 4
if (__builtin_constant_p (offset) && offset == 0)
__asm__ volatile ("stxvb16x %x0,0,%1\n\t"
:
: "wa" (vec), "r" ((uintptr_t)ptr)
: "memory");
else
#endif
__asm__ volatile ("stxvb16x %x0,%1,%2\n\t"
:
: "wa" (vec), "r" (offset), "r" ((uintptr_t)ptr)
: "memory", "r0");
}
#define GCRY_AES_PPC9LE 1
#define ENCRYPT_BLOCK_FUNC _gcry_aes_ppc9le_encrypt
#define DECRYPT_BLOCK_FUNC _gcry_aes_ppc9le_decrypt
#define CFB_ENC_FUNC _gcry_aes_ppc9le_cfb_enc
#define CFB_DEC_FUNC _gcry_aes_ppc9le_cfb_dec
#define CBC_ENC_FUNC _gcry_aes_ppc9le_cbc_enc
#define CBC_DEC_FUNC _gcry_aes_ppc9le_cbc_dec
#define CTR_ENC_FUNC _gcry_aes_ppc9le_ctr_enc
#define OCB_CRYPT_FUNC _gcry_aes_ppc9le_ocb_crypt
#define OCB_AUTH_FUNC _gcry_aes_ppc9le_ocb_auth
#define XTS_CRYPT_FUNC _gcry_aes_ppc9le_xts_crypt
#include <rijndael-ppc-functions.h>
#endif /* USE_PPC_CRYPTO */