diff options
Diffstat (limited to 'cpukit/score/src/smp.c')
| -rw-r--r-- | cpukit/score/src/smp.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/cpukit/score/src/smp.c b/cpukit/score/src/smp.c index bfb09dd783..08677d83c7 100644 --- a/cpukit/score/src/smp.c +++ b/cpukit/score/src/smp.c @@ -26,11 +26,13 @@ void _SMP_Handler_initialize( void ) { - uint32_t max_cpus = rtems_configuration_get_maximum_processors(); - uint32_t cpu; + uint32_t cpu_max = rtems_configuration_get_maximum_processors(); + uint32_t cpu_self; + uint32_t cpu_count; + uint32_t cpu_index; - for ( cpu = 0 ; cpu < max_cpus; ++cpu ) { - Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( cpu ); + for ( cpu_index = 0 ; cpu_index < cpu_max; ++cpu_index ) { + Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( cpu_index ); _SMP_ticket_lock_Initialize( &per_cpu->Lock, "per-CPU" ); } @@ -38,9 +40,28 @@ void _SMP_Handler_initialize( void ) /* * Discover and initialize the secondary cores in an SMP system. */ - max_cpus = _CPU_SMP_Initialize( max_cpus ); - _SMP_Processor_count = max_cpus; + cpu_count = _CPU_SMP_Initialize(); + cpu_count = cpu_count < cpu_max ? cpu_count : cpu_max; + _SMP_Processor_count = cpu_count; + + cpu_self = _SMP_Get_current_processor(); + + for ( cpu_index = 0 ; cpu_index < cpu_count; ++cpu_index ) { + if ( cpu_index != cpu_self ) { + bool ok = _CPU_SMP_Start_processor( cpu_index ); + + if ( !ok ) { + _Terminate( + RTEMS_FATAL_SOURCE_SMP, + false, + SMP_FATAL_START_OF_MANDATORY_PROCESSOR_FAILED + ); + } + } + } + + _CPU_SMP_Finalize_initialization( cpu_count ); } void _SMP_Request_start_multitasking( void ) |