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authorDaniel Cederman <cederman@gaisler.com>2014-07-08 11:33:55 +0200
committerDaniel Hellstrom <daniel@gaisler.com>2014-08-22 13:10:58 +0200
commita68cc1bb10e72504a6c4169c64eb1cfc1280da67 (patch)
tree2419c0fbd4aebfeddd4bf27e71377ba6905396ca
parentd5f543296737df9b9410fccca4b7105679d0e17a (diff)
downloadrtems-a68cc1bb10e72504a6c4169c64eb1cfc1280da67.tar.bz2
score: Add function to send a SMP message to a set of CPUs
-rw-r--r--cpukit/score/include/rtems/score/smpimpl.h15
-rw-r--r--cpukit/score/src/smp.c16
2 files changed, 31 insertions, 0 deletions
diff --git a/cpukit/score/include/rtems/score/smpimpl.h b/cpukit/score/include/rtems/score/smpimpl.h
index e2fee39a36..d49f88fcbb 100644
--- a/cpukit/score/include/rtems/score/smpimpl.h
+++ b/cpukit/score/include/rtems/score/smpimpl.h
@@ -175,6 +175,21 @@ void _SMP_Broadcast_message(
uint32_t message
);
+/**
+ * @brief Sends a SMP message to a set of processors.
+ *
+ * The sending processor may be part of the set.
+ *
+ * @param[in] setsize The size of the set of target processors of the message.
+ * @param[in] cpus The set of target processors of the message.
+ * @param[in] message The message.
+ */
+void _SMP_Send_message_multicast(
+ const size_t setsize,
+ const cpu_set_t *cpus,
+ unsigned long message
+);
+
#endif /* defined( RTEMS_SMP ) */
/**
diff --git a/cpukit/score/src/smp.c b/cpukit/score/src/smp.c
index f0554fe2d5..71406647ff 100644
--- a/cpukit/score/src/smp.c
+++ b/cpukit/score/src/smp.c
@@ -177,4 +177,20 @@ void _SMP_Broadcast_message( uint32_t message )
}
}
+void _SMP_Send_message_multicast(
+ const size_t setsize,
+ const cpu_set_t *cpus,
+ unsigned long message
+)
+{
+ uint32_t cpu_count = _SMP_Get_processor_count();
+ uint32_t cpu_index;
+
+ for ( cpu_index = 0 ; cpu_index < cpu_count ; ++cpu_index ) {
+ if ( CPU_ISSET_S( cpu_index, setsize, cpus ) ) {
+ _SMP_Send_message( cpu_index, message );
+ }
+ }
+}
+
SMP_Test_message_handler _SMP_Test_message_handler;