120 lines
3.5 KiB
C
120 lines
3.5 KiB
C
/* Rijndael (AES) for GnuPG - PowerPC Vector Crypto AES implementation
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* Copyright (C) 2019 Shawn Landden <shawn@git.icu>
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* Copyright (C) 2019-2020 Jussi Kivilinna <jussi.kivilinna@iki.fi>
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*
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* This file is part of Libgcrypt.
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*
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* Libgcrypt is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* Libgcrypt is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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* Alternatively, this code may be used in OpenSSL from The OpenSSL Project,
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* and Cryptogams by Andy Polyakov, and if made part of a release of either
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* or both projects, is thereafter dual-licensed under the license said project
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* is released under.
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*/
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#include <config.h>
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#include "rijndael-internal.h"
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#include "cipher-internal.h"
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#include "bufhelp.h"
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#ifdef USE_PPC_CRYPTO_WITH_PPC9LE
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#include "rijndael-ppc-common.h"
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#ifdef HAVE_GCC_ATTRIBUTE_OPTIMIZE
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# define FUNC_ATTR_OPT __attribute__((optimize("-O2")))
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#else
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# define FUNC_ATTR_OPT
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#endif
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#if defined(__clang__) && defined(HAVE_CLANG_ATTRIBUTE_PPC_TARGET)
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# define PPC_OPT_ATTR __attribute__((target("arch=pwr9"))) FUNC_ATTR_OPT
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#elif defined(HAVE_GCC_ATTRIBUTE_PPC_TARGET)
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# define PPC_OPT_ATTR __attribute__((target("cpu=power9"))) FUNC_ATTR_OPT
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#else
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# define PPC_OPT_ATTR FUNC_ATTR_OPT
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#endif
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static ASM_FUNC_ATTR_INLINE block
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asm_load_be_const(void)
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{
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static const block vec_dummy = { 0 };
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return vec_dummy;
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}
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static ASM_FUNC_ATTR_INLINE block
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asm_be_swap(block vec, block be_bswap_const)
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{
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(void)be_bswap_const;
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return vec;
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}
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static ASM_FUNC_ATTR_INLINE block
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asm_load_be_noswap(unsigned long offset, const void *ptr)
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{
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block vec;
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#if __GNUC__ >= 4
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if (__builtin_constant_p (offset) && offset == 0)
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__asm__ volatile ("lxvb16x %x0,0,%1\n\t"
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: "=wa" (vec)
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: "r" ((uintptr_t)ptr)
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: "memory");
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else
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#endif
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__asm__ volatile ("lxvb16x %x0,%1,%2\n\t"
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: "=wa" (vec)
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: "r" (offset), "r" ((uintptr_t)ptr)
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: "memory", "r0");
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return vec;
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}
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static ASM_FUNC_ATTR_INLINE void
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asm_store_be_noswap(block vec, unsigned long offset, void *ptr)
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{
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#if __GNUC__ >= 4
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if (__builtin_constant_p (offset) && offset == 0)
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__asm__ volatile ("stxvb16x %x0,0,%1\n\t"
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:
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: "wa" (vec), "r" ((uintptr_t)ptr)
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: "memory");
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else
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#endif
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__asm__ volatile ("stxvb16x %x0,%1,%2\n\t"
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:
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: "wa" (vec), "r" (offset), "r" ((uintptr_t)ptr)
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: "memory", "r0");
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}
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#define GCRY_AES_PPC9LE 1
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#define ENCRYPT_BLOCK_FUNC _gcry_aes_ppc9le_encrypt
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#define DECRYPT_BLOCK_FUNC _gcry_aes_ppc9le_decrypt
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#define ECB_CRYPT_FUNC _gcry_aes_ppc9le_ecb_crypt
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#define CFB_ENC_FUNC _gcry_aes_ppc9le_cfb_enc
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#define CFB_DEC_FUNC _gcry_aes_ppc9le_cfb_dec
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#define CBC_ENC_FUNC _gcry_aes_ppc9le_cbc_enc
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#define CBC_DEC_FUNC _gcry_aes_ppc9le_cbc_dec
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#define CTR_ENC_FUNC _gcry_aes_ppc9le_ctr_enc
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#define OCB_CRYPT_FUNC _gcry_aes_ppc9le_ocb_crypt
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#define OCB_AUTH_FUNC _gcry_aes_ppc9le_ocb_auth
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#define XTS_CRYPT_FUNC _gcry_aes_ppc9le_xts_crypt
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#define CTR32LE_ENC_FUNC _gcry_aes_ppc9le_ctr32le_enc
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#include <rijndael-ppc-functions.h>
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#endif /* USE_PPC_CRYPTO */
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