smp: Add and use _CPU_SMP_Get_current_processor()

Add and use _SMP_Get_current_processor() and
rtems_smp_get_current_processor().

Delete bsp_smp_interrupt_cpu().

Change type of current processor index from int to uint32_t to match
_SMP_Processor_count type.

1 files changed, 15 insertions, 0 deletions

diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h
index e3c40981b5..8362c64b3f 100644
--- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h
+++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h
@@ -1000,6 +1000,21 @@ void _CPU_Context_validate( uintptr_t pattern );
   #define _CPU_Context_switch_to_first_task_smp( _context ) \
     _CPU_Context_restore( _context )
 
+  RTEMS_COMPILER_PURE_ATTRIBUTE static inline uint32_t
+    _CPU_SMP_Get_current_processor( void )
+  {
+    uint32_t pir;
+
+    /* Use Book E Processor ID Register (PIR) */
+    __asm__ volatile (
+      "mfspr %[pir], 286"
+      : [pir] "=&r" (pir)
+    );
+
+    return pir;
+  }
+
+
   static inline void _CPU_Processor_event_broadcast( void )
   {
     __asm__ volatile ( "" : : : "memory" );