score: Remove processor event broadcast/receive

Remove _CPU_SMP_Processor_event_broadcast() and
_CPU_SMP_Processor_event_receive().  These functions are hard to use since they
are subject to the lost wake up problem.

8 files changed, 0 insertions, 103 deletions

diff --git a/cpukit/score/cpu/aarch64/include/rtems/score/cpu.h b/cpukit/score/cpu/aarch64/include/rtems/score/cpu.h
index 316079a6cd..595f6c7351 100644
--- a/cpukit/score/cpu/aarch64/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/aarch64/include/rtems/score/cpu.h
@@ -360,18 +360,6 @@ RTEMS_NO_RETURN void _CPU_Context_restore( Context_Control *new_context );
   {
     __asm__ volatile ( "wfe" : : : "memory" );
   }
-
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    _AARCH64_Data_synchronization_barrier();
-    _AARCH64_Send_event();
-  }
-
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    _AARCH64_Wait_for_event();
-    _AARCH64_Data_memory_barrier();
-  }
 #endif
 
 
diff --git a/cpukit/score/cpu/arm/include/rtems/score/cpu.h b/cpukit/score/cpu/arm/include/rtems/score/cpu.h
index dcda4d525c..b554aa263e 100644
--- a/cpukit/score/cpu/arm/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/arm/include/rtems/score/cpu.h
@@ -510,18 +510,6 @@ RTEMS_NO_RETURN void _CPU_Context_restore( Context_Control *new_context );
   {
     __asm__ volatile ( "wfe" : : : "memory" );
   }
-
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    _ARM_Data_synchronization_barrier();
-    _ARM_Send_event();
-  }
-
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    _ARM_Wait_for_event();
-    _ARM_Data_memory_barrier();
-  }
 #endif
 
 
diff --git a/cpukit/score/cpu/i386/include/rtems/score/cpu.h b/cpukit/score/cpu/i386/include/rtems/score/cpu.h
index 0cb4590087..813ed526d8 100644
--- a/cpukit/score/cpu/i386/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/i386/include/rtems/score/cpu.h
@@ -470,16 +470,6 @@ void _CPU_Context_Initialize(
   uint32_t _CPU_SMP_Get_current_processor( void );
 
   void _CPU_SMP_Send_interrupt( uint32_t target_processor_index );
-
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
 #endif
 
 #define _CPU_Context_Initialize_fp( _fp_area ) \
diff --git a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h
index 120b51b633..c4cb512e20 100644
--- a/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h
@@ -1348,35 +1348,6 @@ static inline CPU_Counter_ticks _CPU_Counter_difference(
   void _CPU_SMP_Send_interrupt( uint32_t target_processor_index );
 
   /**
-   * @brief Broadcasts a processor event.
-   *
-   * Some architectures provide a low-level synchronization primitive for
-   * processors in a multi-processor environment.  Processors waiting for this
-   * event may go into a low-power state and stop generating system bus
-   * transactions.  This function must ensure that preceding store operations
-   * can be observed by other processors.
-   *
-   * @see _CPU_SMP_Processor_event_receive().
-   */
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
-  /**
-   * @brief Receives a processor event.
-   *
-   * This function will wait for the processor event and may wait forever if no
-   * such event arrives.
-   *
-   * @see _CPU_SMP_Processor_event_broadcast().
-   */
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
-  /**
    * @brief Gets the is executing indicator of the thread context.
    *
    * @param[in] context The context.
diff --git a/cpukit/score/cpu/powerpc/include/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/include/rtems/score/cpu.h
index f22e1cd7ec..ee02bd4ee4 100644
--- a/cpukit/score/cpu/powerpc/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/powerpc/include/rtems/score/cpu.h
@@ -973,16 +973,6 @@ void _CPU_Context_restore_fp(
   }
 
   void _CPU_SMP_Send_interrupt( uint32_t target_processor_index );
-
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
 #endif
 
 typedef struct {
diff --git a/cpukit/score/cpu/riscv/include/rtems/score/cpu.h b/cpukit/score/cpu/riscv/include/rtems/score/cpu.h
index d9056d0ad1..16dde8204c 100644
--- a/cpukit/score/cpu/riscv/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/riscv/include/rtems/score/cpu.h
@@ -474,16 +474,6 @@ static inline uint32_t _CPU_SMP_Get_current_processor( void )
 
 void _CPU_SMP_Send_interrupt( uint32_t target_processor_index );
 
-static inline void _CPU_SMP_Processor_event_broadcast( void )
-{
-  __asm__ volatile ( "" : : : "memory" );
-}
-
-static inline void _CPU_SMP_Processor_event_receive( void )
-{
-  __asm__ volatile ( "" : : : "memory" );
-}
-
 static inline bool _CPU_Context_Get_is_executing(
   const Context_Control *context
 )
diff --git a/cpukit/score/cpu/sparc/include/rtems/score/cpu.h b/cpukit/score/cpu/sparc/include/rtems/score/cpu.h
index 0abc929c54..910ec83a87 100644
--- a/cpukit/score/cpu/sparc/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/sparc/include/rtems/score/cpu.h
@@ -1004,16 +1004,6 @@ RTEMS_NO_RETURN void _CPU_Context_restore( Context_Control *new_context );
   #endif
 
   void _CPU_SMP_Send_interrupt( uint32_t target_processor_index );
-
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
 #endif
 
 #if defined(SPARC_USE_LAZY_FP_SWITCH)
diff --git a/cpukit/score/cpu/x86_64/include/rtems/score/cpu.h b/cpukit/score/cpu/x86_64/include/rtems/score/cpu.h
index 1e97250188..056c0224a9 100644
--- a/cpukit/score/cpu/x86_64/include/rtems/score/cpu.h
+++ b/cpukit/score/cpu/x86_64/include/rtems/score/cpu.h
@@ -338,16 +338,6 @@ static inline CPU_Counter_ticks _CPU_Counter_difference(
 
   void _CPU_SMP_Send_interrupt( uint32_t target_processor_index );
 
-  static inline void _CPU_SMP_Processor_event_broadcast( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
-  static inline void _CPU_SMP_Processor_event_receive( void )
-  {
-    __asm__ volatile ( "" : : : "memory" );
-  }
-
   static inline bool _CPU_Context_Get_is_executing(
     const Context_Control *context
   )