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Added cache line sizes for PowerPC and IBM Z.

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The cache line sizes were taken from Boost.Lockfree.
This commit is contained in:
Andrey Semashev
2018-04-19 22:10:34 +03:00
parent e16092f473
commit 98adecfbb4
1 changed files with 7 additions and 1 deletions
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8
src/lockpool.cpp
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@@ -42,9 +42,15 @@ namespace detail {
namespace {
// This seems to be the maximum across all modern CPUs
// Cache line size, in bytes
// NOTE: This constant is made as a macro because some compilers (gcc 4.4 for one) don't allow enums or namespace scope constants in alignment attributes
#if defined(__s390__) || defined(__s390x__)
#define BOOST_ATOMIC_CACHE_LINE_SIZE 256
#elif defined(powerpc) || defined(__powerpc__) || defined(__ppc__)
#define BOOST_ATOMIC_CACHE_LINE_SIZE 128
#else
#define BOOST_ATOMIC_CACHE_LINE_SIZE 64
#endif
#if defined(BOOST_ATOMIC_USE_PTHREAD)
typedef pthread_mutex_t lock_type;