1/*
2 * ccsha256_di.c
3 * corecrypto
4 *
5 * Created on 09/18/2012
6 *
7 * Copyright (c) 2012,2014,2015 Apple Inc. All rights reserved.
8 *
9 *
10 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
11 *
12 * This file contains Original Code and/or Modifications of Original Code
13 * as defined in and that are subject to the Apple Public Source License
14 * Version 2.0 (the 'License'). You may not use this file except in
15 * compliance with the License. The rights granted to you under the License
16 * may not be used to create, or enable the creation or redistribution of,
17 * unlawful or unlicensed copies of an Apple operating system, or to
18 * circumvent, violate, or enable the circumvention or violation of, any
19 * terms of an Apple operating system software license agreement.
20 *
21 * Please obtain a copy of the License at
22 * http://www.opensource.apple.com/apsl/ and read it before using this file.
23 *
24 * The Original Code and all software distributed under the License are
25 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
26 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
27 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
28 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
29 * Please see the License for the specific language governing rights and
30 * limitations under the License.
31 *
32 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
33 */
34
35#include <corecrypto/ccsha2.h>
36#include "ccsha2_internal.h"
37#include <corecrypto/cc_runtime_config.h>
38
39#include "corecrypto/fipspost_trace.h"
40
41const struct ccdigest_info *ccsha256_di(void)
42{
43 FIPSPOST_TRACE_EVENT;
44
45#if CCSHA2_VNG_INTEL
46#if defined (__x86_64__)
47 if (CC_HAS_AVX512_AND_IN_KERNEL())
48 return &ccsha256_vng_intel_SupplementalSSE3_di;
49 else
50 return ( (CC_HAS_AVX2() ? &ccsha256_vng_intel_AVX2_di :
51 ( (CC_HAS_AVX1() ? &ccsha256_vng_intel_AVX1_di :
52 &ccsha256_vng_intel_SupplementalSSE3_di ) ) ) ) ;
53#else
54 return &ccsha256_vng_intel_SupplementalSSE3_di;
55#endif
56#elif CCSHA2_VNG_ARMV7NEON
57 return &ccsha256_vng_armv7neon_di;
58#elif CCSHA256_ARMV6M_ASM
59 return &ccsha256_v6m_di;
60#else
61 return &ccsha256_ltc_di;
62#endif
63}
64