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Diffstat (limited to 'cpukit/score/cpu/powerpc/rtems/score/cpu.h')
-rw-r--r--cpukit/score/cpu/powerpc/rtems/score/cpu.h15
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" );