score: Distribute clock tick to all online CPUs

Update #2554.

3 files changed, 17 insertions, 7 deletions

diff --git a/cpukit/score/src/kern_tc.c b/cpukit/score/src/kern_tc.c
index 16d76a1789..e56c292ea3 100644
--- a/cpukit/score/src/kern_tc.c
+++ b/cpukit/score/src/kern_tc.c
@@ -1974,10 +1974,15 @@ tc_ticktock(int cnt)
 void
 _Timecounter_Tick(void)
 {
+	Per_CPU_Control *cpu_self = _Per_CPU_Get();
+
+	if (_Per_CPU_Is_boot_processor(cpu_self)) {
 #endif /* __rtems__ */
 	tc_windup();
 #ifdef __rtems__
-	_Watchdog_Tick();
+	};
+
+	_Watchdog_Tick(cpu_self);
 #endif /* __rtems__ */
 }
 #ifdef __rtems__
@@ -2016,7 +2021,7 @@ _Timecounter_Tick_simple(uint32_t delta, uint32_t offset,
 
 	_Timecounter_Release(lock_context);
 
-	_Watchdog_Tick();
+	_Watchdog_Tick(_Per_CPU_Get());
 }
 #endif /* __rtems__ */
 
diff --git a/cpukit/score/src/smp.c b/cpukit/score/src/smp.c
index 4dacd4ed5c..9d9507d1b9 100644
--- a/cpukit/score/src/smp.c
+++ b/cpukit/score/src/smp.c
@@ -189,7 +189,10 @@ void _SMP_Send_message_broadcast( unsigned long message )
   _Assert( _Debug_Is_thread_dispatching_allowed() );
 
   for ( cpu_index = 0 ; cpu_index < cpu_count ; ++cpu_index ) {
-    if ( cpu_index != cpu_index_self ) {
+    if (
+      cpu_index != cpu_index_self
+        && _Processor_mask_Is_set( _SMP_Online_processors, cpu_index )
+    ) {
       _SMP_Send_message( cpu_index, message );
     }
   }
diff --git a/cpukit/score/src/watchdogtick.c b/cpukit/score/src/watchdogtick.c
index cb68ea2f02..e89c088350 100644
--- a/cpukit/score/src/watchdogtick.c
+++ b/cpukit/score/src/watchdogtick.c
@@ -22,13 +22,15 @@
 #include "config.h"
 #endif
 
-void _Watchdog_Tick( void )
+void _Watchdog_Tick( Per_CPU_Control *cpu )
 {
   _Assert( !_Thread_Dispatch_is_enabled() );
 
-  _TOD_Tickle_ticks();
+  if ( _Per_CPU_Is_boot_processor( cpu ) ) {
+    _TOD_Tickle_ticks();
 
-  _Watchdog_Tickle_ticks();
+    _Watchdog_Tickle_ticks();
 
-  _Scheduler_Tick();
+    _Scheduler_Tick();
+  }
 }