// Copyright (C) 2009, 2016 Tim Blechmann
|
//
|
// Distributed under the Boost Software License, Version 1.0. (See
|
// accompanying file LICENSE_1_0.txt or copy at
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
#ifndef BOOST_LOCKFREE_PREFIX_HPP_INCLUDED
|
#define BOOST_LOCKFREE_PREFIX_HPP_INCLUDED
|
|
/* this file defines the following macros:
|
BOOST_LOCKFREE_CACHELINE_BYTES: size of a cache line
|
BOOST_LOCKFREE_PTR_COMPRESSION: use tag/pointer compression to utilize parts
|
of the virtual address space as tag (at least 16bit)
|
*/
|
|
#if defined(__s390__) || defined(__s390x__)
|
#define BOOST_LOCKFREE_CACHELINE_BYTES 256
|
#elif defined(powerpc) || defined(__powerpc__) || defined(__ppc__)
|
#define BOOST_LOCKFREE_CACHELINE_BYTES 128
|
#else
|
#define BOOST_LOCKFREE_CACHELINE_BYTES 64
|
#endif
|
|
#include <boost/predef.h>
|
|
#if BOOST_ARCH_X86_64 || defined (__aarch64__)
|
#define BOOST_LOCKFREE_PTR_COMPRESSION 1
|
#endif
|
|
#endif /* BOOST_LOCKFREE_PREFIX_HPP_INCLUDED */
|
