diff options
Diffstat (limited to 'cpukit/score/include/rtems/score/cpustdatomic.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/cpustdatomic.h | 682 |
1 files changed, 0 insertions, 682 deletions
diff --git a/cpukit/score/include/rtems/score/cpustdatomic.h b/cpukit/score/include/rtems/score/cpustdatomic.h deleted file mode 100644 index 6c6db8d279..0000000000 --- a/cpukit/score/include/rtems/score/cpustdatomic.h +++ /dev/null @@ -1,682 +0,0 @@ -/** - * @file - * - * @brief Atomic Operations CPU API - */ - -/* - * COPYRIGHT (c) 2013 Deng Hengyi. - * Copyright (c) 2015 embedded brains GmbH. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - */ - -#ifndef _RTEMS_SCORE_CPUSTDATOMIC_H -#define _RTEMS_SCORE_CPUSTDATOMIC_H - -#include <rtems/score/basedefs.h> - -#ifdef RTEMS_SMP - #if defined(__cplusplus) \ - && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) - /* - * The GCC 4.9 ships its own <stdatomic.h> which is not C++ compatible. The - * suggested solution was to include <atomic> in case C++ is used. This works - * at least with GCC 4.9. See also: - * - * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60932 - * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60940 - */ - #include <atomic> - #define _RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC - #else - #include <stdatomic.h> - #define _RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC - #endif -#else - #include <rtems/score/isrlevel.h> -#endif - -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - -typedef std::atomic_uint CPU_atomic_Uint; - -typedef std::atomic_ulong CPU_atomic_Ulong; - -typedef std::atomic_uintptr_t CPU_atomic_Uintptr; - -typedef std::atomic_flag CPU_atomic_Flag; - -typedef std::memory_order CPU_atomic_Order; - -#define CPU_ATOMIC_ORDER_RELAXED std::memory_order_relaxed - -#define CPU_ATOMIC_ORDER_ACQUIRE std::memory_order_acquire - -#define CPU_ATOMIC_ORDER_RELEASE std::memory_order_release - -#define CPU_ATOMIC_ORDER_ACQ_REL std::memory_order_acq_rel - -#define CPU_ATOMIC_ORDER_SEQ_CST std::memory_order_seq_cst - -#define CPU_ATOMIC_INITIALIZER_UINT( value ) ATOMIC_VAR_INIT( value ) - -#define CPU_ATOMIC_INITIALIZER_ULONG( value ) ATOMIC_VAR_INIT( value ) - -#define CPU_ATOMIC_INITIALIZER_UINTPTR( value ) ATOMIC_VAR_INIT( value ) - -#define CPU_ATOMIC_INITIALIZER_FLAG ATOMIC_FLAG_INIT - -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - -typedef atomic_uint CPU_atomic_Uint; - -typedef atomic_ulong CPU_atomic_Ulong; - -typedef atomic_uintptr_t CPU_atomic_Uintptr; - -typedef atomic_flag CPU_atomic_Flag; - -typedef memory_order CPU_atomic_Order; - -#define CPU_ATOMIC_ORDER_RELAXED memory_order_relaxed - -#define CPU_ATOMIC_ORDER_ACQUIRE memory_order_acquire - -#define CPU_ATOMIC_ORDER_RELEASE memory_order_release - -#define CPU_ATOMIC_ORDER_ACQ_REL memory_order_acq_rel - -#define CPU_ATOMIC_ORDER_SEQ_CST memory_order_seq_cst - -#define CPU_ATOMIC_INITIALIZER_UINT( value ) ATOMIC_VAR_INIT( value ) - -#define CPU_ATOMIC_INITIALIZER_ULONG( value ) ATOMIC_VAR_INIT( value ) - -#define CPU_ATOMIC_INITIALIZER_UINTPTR( value ) ATOMIC_VAR_INIT( value ) - -#define CPU_ATOMIC_INITIALIZER_FLAG ATOMIC_FLAG_INIT - -#else - -typedef unsigned int CPU_atomic_Uint; - -typedef unsigned long CPU_atomic_Ulong; - -typedef uintptr_t CPU_atomic_Uintptr; - -typedef bool CPU_atomic_Flag; - -typedef int CPU_atomic_Order; - -#define CPU_ATOMIC_ORDER_RELAXED 0 - -#define CPU_ATOMIC_ORDER_ACQUIRE 2 - -#define CPU_ATOMIC_ORDER_RELEASE 3 - -#define CPU_ATOMIC_ORDER_ACQ_REL 4 - -#define CPU_ATOMIC_ORDER_SEQ_CST 5 - -#define CPU_ATOMIC_INITIALIZER_UINT( value ) ( value ) - -#define CPU_ATOMIC_INITIALIZER_ULONG( value ) ( value ) - -#define CPU_ATOMIC_INITIALIZER_UINTPTR( value ) ( value ) - -#define CPU_ATOMIC_INITIALIZER_FLAG false - -#endif - -static inline void _CPU_atomic_Fence( CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - std::atomic_thread_fence( order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_thread_fence( order ); -#else - (void) order; - RTEMS_COMPILER_MEMORY_BARRIER(); -#endif -} - -static inline void _CPU_atomic_Init_uint( CPU_atomic_Uint *obj, unsigned int desired ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->store( desired ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_init( obj, desired ); -#else - *obj = desired; -#endif -} - -static inline void _CPU_atomic_Init_ulong( CPU_atomic_Ulong *obj, unsigned long desired ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->store( desired ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_init( obj, desired ); -#else - *obj = desired; -#endif -} - -static inline void _CPU_atomic_Init_uintptr( CPU_atomic_Uintptr *obj, uintptr_t desired ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->store( desired ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_init( obj, desired ); -#else - *obj = desired; -#endif -} - -static inline unsigned int _CPU_atomic_Load_uint( const CPU_atomic_Uint *obj, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->load( order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_load_explicit( obj, order ); -#else - unsigned int val; - - (void) order; - val = *obj; - RTEMS_COMPILER_MEMORY_BARRIER(); - - return val; -#endif -} - -static inline unsigned long _CPU_atomic_Load_ulong( const CPU_atomic_Ulong *obj, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->load( order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_load_explicit( obj, order ); -#else - unsigned long val; - - (void) order; - val = *obj; - RTEMS_COMPILER_MEMORY_BARRIER(); - - return val; -#endif -} - -static inline uintptr_t _CPU_atomic_Load_uintptr( const CPU_atomic_Uintptr *obj, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->load( order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_load_explicit( obj, order ); -#else - uintptr_t val; - - (void) order; - val = *obj; - RTEMS_COMPILER_MEMORY_BARRIER(); - - return val; -#endif -} - -static inline void _CPU_atomic_Store_uint( CPU_atomic_Uint *obj, unsigned int desired, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->store( desired ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_store_explicit( obj, desired, order ); -#else - (void) order; - RTEMS_COMPILER_MEMORY_BARRIER(); - *obj = desired; -#endif -} - -static inline void _CPU_atomic_Store_ulong( CPU_atomic_Ulong *obj, unsigned long desired, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->store( desired ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_store_explicit( obj, desired, order ); -#else - (void) order; - RTEMS_COMPILER_MEMORY_BARRIER(); - *obj = desired; -#endif -} - -static inline void _CPU_atomic_Store_uintptr( CPU_atomic_Uintptr *obj, uintptr_t desired, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->store( desired ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_store_explicit( obj, desired, order ); -#else - (void) order; - RTEMS_COMPILER_MEMORY_BARRIER(); - *obj = desired; -#endif -} - -static inline unsigned int _CPU_atomic_Fetch_add_uint( CPU_atomic_Uint *obj, unsigned int arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_add( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_add_explicit( obj, arg, order ); -#else - unsigned int val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val + arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned long _CPU_atomic_Fetch_add_ulong( CPU_atomic_Ulong *obj, unsigned long arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_add( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_add_explicit( obj, arg, order ); -#else - unsigned long val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val + arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline uintptr_t _CPU_atomic_Fetch_add_uintptr( CPU_atomic_Uintptr *obj, uintptr_t arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_add( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_add_explicit( obj, arg, order ); -#else - uintptr_t val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val + arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned int _CPU_atomic_Fetch_sub_uint( CPU_atomic_Uint *obj, unsigned int arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_sub( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_sub_explicit( obj, arg, order ); -#else - unsigned int val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val - arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned long _CPU_atomic_Fetch_sub_ulong( CPU_atomic_Ulong *obj, unsigned long arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_sub( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_sub_explicit( obj, arg, order ); -#else - unsigned long val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val - arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline uintptr_t _CPU_atomic_Fetch_sub_uintptr( CPU_atomic_Uintptr *obj, uintptr_t arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_sub( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_sub_explicit( obj, arg, order ); -#else - uintptr_t val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val - arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned int _CPU_atomic_Fetch_or_uint( CPU_atomic_Uint *obj, unsigned int arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_or( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_or_explicit( obj, arg, order ); -#else - unsigned int val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val | arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned long _CPU_atomic_Fetch_or_ulong( CPU_atomic_Ulong *obj, unsigned long arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_or( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_or_explicit( obj, arg, order ); -#else - unsigned long val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val | arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline uintptr_t _CPU_atomic_Fetch_or_uintptr( CPU_atomic_Uintptr *obj, uintptr_t arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_or( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_or_explicit( obj, arg, order ); -#else - uintptr_t val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val | arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned int _CPU_atomic_Fetch_and_uint( CPU_atomic_Uint *obj, unsigned int arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_and( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_and_explicit( obj, arg, order ); -#else - unsigned int val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val & arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned long _CPU_atomic_Fetch_and_ulong( CPU_atomic_Ulong *obj, unsigned long arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_and( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_and_explicit( obj, arg, order ); -#else - unsigned long val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val & arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline uintptr_t _CPU_atomic_Fetch_and_uintptr( CPU_atomic_Uintptr *obj, uintptr_t arg, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->fetch_and( arg, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_fetch_and_explicit( obj, arg, order ); -#else - uintptr_t val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = val & arg; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned int _CPU_atomic_Exchange_uint( CPU_atomic_Uint *obj, unsigned int desired, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->exchange( desired, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_exchange_explicit( obj, desired, order ); -#else - unsigned int val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = desired; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline unsigned long _CPU_atomic_Exchange_ulong( CPU_atomic_Ulong *obj, unsigned long desired, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->exchange( desired, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_exchange_explicit( obj, desired, order ); -#else - unsigned long val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = desired; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline uintptr_t _CPU_atomic_Exchange_uintptr( CPU_atomic_Uintptr *obj, uintptr_t desired, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->exchange( desired, order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_exchange_explicit( obj, desired, order ); -#else - uintptr_t val; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - val = *obj; - *obj = desired; - _ISR_Local_enable( level ); - - return val; -#endif -} - -static inline bool _CPU_atomic_Compare_exchange_uint( CPU_atomic_Uint *obj, unsigned int *expected, unsigned int desired, CPU_atomic_Order succ, CPU_atomic_Order fail ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->compare_exchange_strong( *expected, desired, succ, fail ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_compare_exchange_strong_explicit( obj, expected, desired, succ, fail ); -#else - bool success; - ISR_Level level; - unsigned int actual; - - (void) succ; - (void) fail; - _ISR_Local_disable( level ); - actual = *obj; - success = ( actual == *expected ); - if ( success ) { - *obj = desired; - } else { - *expected = actual; - } - _ISR_Local_enable( level ); - - return success; -#endif -} - -static inline bool _CPU_atomic_Compare_exchange_ulong( CPU_atomic_Ulong *obj, unsigned long *expected, unsigned long desired, CPU_atomic_Order succ, CPU_atomic_Order fail ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->compare_exchange_strong( *expected, desired, succ, fail ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_compare_exchange_strong_explicit( obj, expected, desired, succ, fail ); -#else - bool success; - ISR_Level level; - unsigned long actual; - - (void) succ; - (void) fail; - _ISR_Local_disable( level ); - actual = *obj; - success = ( actual == *expected ); - if ( success ) { - *obj = desired; - } else { - *expected = actual; - } - _ISR_Local_enable( level ); - - return success; -#endif -} - -static inline bool _CPU_atomic_Compare_exchange_uintptr( CPU_atomic_Uintptr *obj, uintptr_t *expected, uintptr_t desired, CPU_atomic_Order succ, CPU_atomic_Order fail ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->compare_exchange_strong( *expected, desired, succ, fail ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_compare_exchange_strong_explicit( obj, expected, desired, succ, fail ); -#else - bool success; - ISR_Level level; - uintptr_t actual; - - (void) succ; - (void) fail; - _ISR_Local_disable( level ); - actual = *obj; - success = ( actual == *expected ); - if ( success ) { - *obj = desired; - } else { - *expected = actual; - } - _ISR_Local_enable( level ); - - return success; -#endif -} - -static inline void _CPU_atomic_Flag_clear( CPU_atomic_Flag *obj, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - obj->clear( order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - atomic_flag_clear_explicit( obj, order ); -#else - (void) order; - *obj = false; -#endif -} - -static inline bool _CPU_atomic_Flag_test_and_set( CPU_atomic_Flag *obj, CPU_atomic_Order order ) -{ -#if defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_ATOMIC) - return obj->test_and_set( order ); -#elif defined(_RTEMS_SCORE_CPUSTDATOMIC_USE_STDATOMIC) - return atomic_flag_test_and_set_explicit( obj, order ); -#else - bool flag; - ISR_Level level; - - (void) order; - _ISR_Local_disable( level ); - flag = *obj; - *obj = true; - _ISR_Local_enable( level ); - - return flag; -#endif -} - -#endif /* _RTEMS_SCORE_CPUSTDATOMIC_H */ |