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-rw-r--r--cpukit/score/src/smpmulticastaction.c141
1 files changed, 4 insertions, 137 deletions
diff --git a/cpukit/score/src/smpmulticastaction.c b/cpukit/score/src/smpmulticastaction.c
index 55c495a2cf..4eec04c50d 100644
--- a/cpukit/score/src/smpmulticastaction.c
+++ b/cpukit/score/src/smpmulticastaction.c
@@ -3,16 +3,14 @@
/**
* @file
*
- * @ingroup RTEMSScorePerCPU
* @ingroup RTEMSScoreSMP
*
- * @brief This source file contains the implementation of _Per_CPU_Add_job(),
- * _Per_CPU_Perform_jobs(), _Per_CPU_Wait_for_job(), _SMP_Broadcast_action(),
- * _SMP_Multicast_action(), _SMP_Othercast_action(), and _SMP_Synchronize().
+ * @brief This source file contains the implementation of
+ * _SMP_Multicast_action().
*/
/*
- * Copyright (C) 2019 embedded brains GmbH
+ * Copyright (C) 2019 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -43,106 +41,6 @@
#include <rtems/score/smpimpl.h>
#include <rtems/score/assert.h>
-#define _Per_CPU_Jobs_ISR_disable_and_acquire( cpu, lock_context ) \
- _ISR_lock_ISR_disable_and_acquire( &( cpu )->Jobs.Lock, lock_context )
-
-#define _Per_CPU_Jobs_release_and_ISR_enable( cpu, lock_context ) \
- _ISR_lock_Release_and_ISR_enable( &( cpu )->Jobs.Lock, lock_context )
-
-void _Per_CPU_Perform_jobs( Per_CPU_Control *cpu )
-{
- ISR_lock_Context lock_context;
- Per_CPU_Job *job;
-
- _Per_CPU_Jobs_ISR_disable_and_acquire( cpu, &lock_context );
- job = cpu->Jobs.head;
- cpu->Jobs.head = NULL;
- _Per_CPU_Jobs_release_and_ISR_enable( cpu, &lock_context );
-
- while ( job != NULL ) {
- const Per_CPU_Job_context *context;
- Per_CPU_Job *next;
-
- context = job->context;
- next = job->next;
- ( *context->handler )( context->arg );
- _Atomic_Store_ulong( &job->done, PER_CPU_JOB_DONE, ATOMIC_ORDER_RELEASE );
-
- job = next;
- }
-}
-
-void _Per_CPU_Add_job( Per_CPU_Control *cpu, Per_CPU_Job *job )
-{
- ISR_lock_Context lock_context;
-
- _Atomic_Store_ulong( &job->done, 0, ATOMIC_ORDER_RELAXED );
- _Assert( job->next == NULL );
-
- _Per_CPU_Jobs_ISR_disable_and_acquire( cpu, &lock_context );
-
- if ( cpu->Jobs.head == NULL ) {
- cpu->Jobs.head = job;
- } else {
- *cpu->Jobs.tail = job;
- }
-
- cpu->Jobs.tail = &job->next;
-
- _Per_CPU_Jobs_release_and_ISR_enable( cpu, &lock_context );
-}
-
-static void _Per_CPU_Try_perform_jobs( Per_CPU_Control *cpu_self )
-{
- unsigned long message;
-
- message = _Atomic_Load_ulong( &cpu_self->message, ATOMIC_ORDER_RELAXED );
-
- if ( ( message & SMP_MESSAGE_PERFORM_JOBS ) != 0 ) {
- bool success;
-
- success = _Atomic_Compare_exchange_ulong(
- &cpu_self->message, &message,
- message & ~SMP_MESSAGE_PERFORM_JOBS, ATOMIC_ORDER_RELAXED,
- ATOMIC_ORDER_RELAXED
- );
-
- if ( success ) {
- _Per_CPU_Perform_jobs( cpu_self );
- }
- }
-}
-
-void _Per_CPU_Wait_for_job(
- const Per_CPU_Control *cpu,
- const Per_CPU_Job *job
-)
-{
- while (
- _Atomic_Load_ulong( &job->done, ATOMIC_ORDER_ACQUIRE )
- != PER_CPU_JOB_DONE
- ) {
- switch ( cpu->state ) {
- case PER_CPU_STATE_INITIAL:
- case PER_CPU_STATE_READY_TO_START_MULTITASKING:
- case PER_CPU_STATE_REQUEST_START_MULTITASKING:
- _CPU_SMP_Processor_event_broadcast();
- /* Fall through */
- case PER_CPU_STATE_UP:
- /*
- * Calling this function with the current processor is intentional.
- * We have to perform our own jobs here in case inter-processor
- * interrupts are not working.
- */
- _Per_CPU_Try_perform_jobs( _Per_CPU_Get() );
- break;
- default:
- _SMP_Fatal( SMP_FATAL_WRONG_CPU_STATE_TO_PERFORM_JOBS );
- break;
- }
- }
-}
-
typedef struct {
Per_CPU_Job_context Context;
Per_CPU_Job Jobs[ CPU_MAXIMUM_PROCESSORS ];
@@ -165,8 +63,7 @@ static void _SMP_Issue_action_jobs(
job->context = &jobs->Context;
cpu = _Per_CPU_Get_by_index( cpu_index );
- _Per_CPU_Add_job( cpu, job );
- _SMP_Send_message( cpu_index, SMP_MESSAGE_PERFORM_JOBS );
+ _Per_CPU_Submit_job( cpu, job );
}
}
}
@@ -209,33 +106,3 @@ void _SMP_Multicast_action(
_SMP_Issue_action_jobs( targets, &jobs, cpu_max );
_SMP_Wait_for_action_jobs( targets, &jobs, cpu_max );
}
-
-void _SMP_Broadcast_action(
- SMP_Action_handler handler,
- void *arg
-)
-{
- _SMP_Multicast_action( _SMP_Get_online_processors(), handler, arg );
-}
-
-void _SMP_Othercast_action(
- SMP_Action_handler handler,
- void *arg
-)
-{
- Processor_mask targets;
-
- _Processor_mask_Assign( &targets, _SMP_Get_online_processors() );
- _Processor_mask_Clear( &targets, _SMP_Get_current_processor() );
- _SMP_Multicast_action( &targets, handler, arg );
-}
-
-static void _SMP_Do_nothing_action( void *arg )
-{
- /* Do nothing */
-}
-
-void _SMP_Synchronize( void )
-{
- _SMP_Othercast_action( _SMP_Do_nothing_action, NULL );
-}