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2a504a6 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | #ifndef __LIBCUDACXX_ATOMIC_SCOPES_H
#define __LIBCUDACXX_ATOMIC_SCOPES_H
// REMEMBER CHANGES TO THESE ARE ABI BREAKING
// TODO: Space values out for potential new scopes
#ifndef __ATOMIC_BLOCK
#define __ATOMIC_SYSTEM 0 // 0 indicates default
#define __ATOMIC_DEVICE 1
#define __ATOMIC_BLOCK 2
#define __ATOMIC_THREAD 10
#endif //__ATOMIC_BLOCK
enum thread_scope {
thread_scope_system = __ATOMIC_SYSTEM,
thread_scope_device = __ATOMIC_DEVICE,
thread_scope_block = __ATOMIC_BLOCK,
thread_scope_thread = __ATOMIC_THREAD
};
#define _LIBCUDACXX_ATOMIC_SCOPE_TYPE ::cuda::thread_scope
#define _LIBCUDACXX_ATOMIC_SCOPE_DEFAULT ::cuda::thread_scope::system
struct __thread_scope_thread_tag { };
struct __thread_scope_block_tag { };
struct __thread_scope_device_tag { };
struct __thread_scope_system_tag { };
template<int _Scope> struct __scope_enum_to_tag { };
/* This would be the implementation once an actual thread-scope backend exists.
template<> struct __scope_enum_to_tag<(int)thread_scope_thread> {
using type = __thread_scope_thread_tag; };
Until then: */
template<> struct __scope_enum_to_tag<(int)thread_scope_thread> {
using type = __thread_scope_block_tag; };
template<> struct __scope_enum_to_tag<(int)thread_scope_block> {
using type = __thread_scope_block_tag; };
template<> struct __scope_enum_to_tag<(int)thread_scope_device> {
using type = __thread_scope_device_tag; };
template<> struct __scope_enum_to_tag<(int)thread_scope_system> {
using type = __thread_scope_system_tag; };
template <int _Scope>
_LIBCUDACXX_INLINE_VISIBILITY auto constexpr __scope_tag() ->
typename __scope_enum_to_tag<_Scope>::type {
return typename __scope_enum_to_tag<_Scope>::type();
}
#endif // __LIBCUDACXX_ATOMIC_SCOPES_H
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