From ad563618ca49816e8db755cb44a101dacc270a2a Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Thu, 13 Feb 2014 13:00:00 +0100
Subject: sparc: Add LEON3_ASR17_PROCESSOR_INDEX_SHIFT

Add _LEON3_Get_current_processor().
---
 cpukit/score/cpu/sparc/rtems/score/sparc.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'cpukit')

diff --git a/cpukit/score/cpu/sparc/rtems/score/sparc.h b/cpukit/score/cpu/sparc/rtems/score/sparc.h
index 0c00ac4ac9..4539e7d6df 100644
--- a/cpukit/score/cpu/sparc/rtems/score/sparc.h
+++ b/cpukit/score/cpu/sparc/rtems/score/sparc.h
@@ -147,6 +147,8 @@ extern "C" {
 /** This constant is the starting bit position of the IMPL in the PSR. */
 #define SPARC_PSR_IMPL_BIT_POSITION 28   /* bits 28 - 31 */
 
+#define LEON3_ASR17_PROCESSOR_INDEX_SHIFT 28
+
 #ifndef ASM
 
 /**
@@ -292,6 +294,18 @@ void sparc_enable_interrupts(uint32_t psr);
       (_psr_level & SPARC_PSR_PIL_MASK) >> SPARC_PSR_PIL_BIT_POSITION; \
   } while ( 0 )
 
+static inline uint32_t _LEON3_Get_current_processor( void )
+{
+  uint32_t asr17;
+
+  __asm__ (
+    "rd %%asr17, %0"
+    : "=&r" (asr17)
+  );
+
+  return asr17 >> LEON3_ASR17_PROCESSOR_INDEX_SHIFT;
+}
+
 #endif
 
 #ifdef __cplusplus
-- 
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