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