score: Add local context to SMP lock API

Add a local context structure to the SMP lock API for acquire and
release pairs.  This context can be used to store the ISR level and
profiling information.  It may be later used to enable more
sophisticated lock algorithms, e.g. MCS locks.

There is only one lock that cannot be used with a local context.  This
is the per-CPU lock since here we would have to transfer the local
context through a context switch which is very complicated.

1 files changed, 6 insertions, 6 deletions

diff --git a/cpukit/libcsupport/include/ringbuf.h b/cpukit/libcsupport/include/ringbuf.h
index 13821a545d..05bcceb6c1 100644
--- a/cpukit/libcsupport/include/ringbuf.h
+++ b/cpukit/libcsupport/include/ringbuf.h
@@ -36,22 +36,22 @@ typedef struct {
 
 #define Ring_buffer_Add_character( _buffer, _ch ) \
   do { \
-    rtems_interrupt_level isrlevel; \
+    rtems_interrupt_lock_context lock_context; \
     \
-    rtems_interrupt_lock_acquire( &(_buffer)->lock, isrlevel ); \
+    rtems_interrupt_lock_acquire( &(_buffer)->lock, &lock_context ); \
       (_buffer)->tail = ((_buffer)->tail+1) % RINGBUF_QUEUE_LENGTH; \
       (_buffer)->buffer[ (_buffer)->tail ] = (_ch); \
-    rtems_interrupt_lock_release( &(_buffer)->lock, isrlevel ); \
+    rtems_interrupt_lock_release( &(_buffer)->lock, &lock_context ); \
   } while ( 0 )
 
 #define Ring_buffer_Remove_character( _buffer, _ch ) \
   do { \
-    rtems_interrupt_level isrlevel; \
+    rtems_interrupt_lock_context lock_context; \
     \
-    rtems_interrupt_lock_acquire( &(_buffer)->lock, isrlevel ); \
+    rtems_interrupt_lock_acquire( &(_buffer)->lock, &lock_context ); \
       (_buffer)->head = ((_buffer)->head+1) % RINGBUF_QUEUE_LENGTH; \
       (_ch) = (_buffer)->buffer[ (_buffer)->head ]; \
-    rtems_interrupt_lock_release( &(_buffer)->lock, isrlevel ); \
+    rtems_interrupt_lock_release( &(_buffer)->lock, &lock_context ); \
   } while ( 0 )
 
 #endif