openssl/crypto/ppc_arch.h
Bernd Edlinger c8f370485c PPC: Try out if mftb works before using it
If this fails try out if mfspr268 works.

Use OPENSSL_ppccap=0x20 for enabling mftb,
OPENSSL_ppccap=0x40 for enabling mfspr268,
and OPENSSL_ppccap=0 for enabling neither.

Fixes #8012

Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/8043)
2019-01-21 15:42:04 +01:00

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C

/*
* Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (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
*/
#ifndef HEADER_PPC_ARCH_H
# define HEADER_PPC_ARCH_H
extern unsigned int OPENSSL_ppccap_P;
/*
* Flags' usage can appear ambiguous, because they are set rather
* to reflect OpenSSL performance preferences than actual processor
* capabilities.
*/
# define PPC_FPU64 (1<<0)
# define PPC_ALTIVEC (1<<1)
# define PPC_CRYPTO207 (1<<2)
# define PPC_FPU (1<<3)
# define PPC_MADD300 (1<<4)
# define PPC_MFTB (1<<5)
# define PPC_MFSPR268 (1<<6)
#endif