From 7336be9d78266adfb540170e5105caf8eb003d2f Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 18 Feb 2014 13:40:39 +0100 Subject: score: SMP initialization and shutdown changes Rename _SMP_Request_other_cores_to_perform_first_context_switch() into _SMP_Request_start_multitasking() since this requests now a multitasking start on all configured and available processors. The name corresponds _Thread_Start_multitasking() and _SMP_Start_multitasking_on_secondary_processor() actions issued in response to this request. Move in source file to right place. Rename PER_CPU_STATE_READY_TO_BEGIN_MULTITASKING into PER_CPU_STATE_READY_TO_START_MULTITASKING. Rename PER_CPU_STATE_BEGIN_MULTITASKING into PER_CPU_STATE_REQUEST_START_MULTITASKING. Rename _SMP_Request_other_cores_to_shutdown() into _SMP_Request_shutdown(). Add a per-CPU state lock to protect all changes. This was necessary to offer a controlled shutdown of the system (atomic read/writes alone are not sufficient for this kind of synchronization). Add documentation for Per_CPU_State. Delete debug output. New tests smptests/smpfatal01 and smptests/smpfatal02. --- cpukit/sapi/src/exinit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'cpukit/sapi/src/exinit.c') diff --git a/cpukit/sapi/src/exinit.c b/cpukit/sapi/src/exinit.c index d265455afd..ee1c7fdecc 100644 --- a/cpukit/sapi/src/exinit.c +++ b/cpukit/sapi/src/exinit.c @@ -210,7 +210,7 @@ void rtems_initialize_start_multitasking(void) { _System_state_Set( SYSTEM_STATE_UP ); - _SMP_Request_other_cores_to_perform_first_context_switch(); + _SMP_Request_start_multitasking(); _Thread_Start_multitasking(); -- cgit v1.2.3