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, 28 insertions, 28 deletions

diff --git a/cpukit/sapi/src/chainsmp.c b/cpukit/sapi/src/chainsmp.c
index 5554860280..3f041ba0b2 100644
--- a/cpukit/sapi/src/chainsmp.c
+++ b/cpukit/sapi/src/chainsmp.c
@@ -24,44 +24,44 @@
 
 static SMP_lock_Control chain_lock = SMP_LOCK_INITIALIZER;
 
-static void chain_acquire( ISR_Level *level )
+static void chain_acquire( SMP_lock_Context *lock_context )
 {
-  _SMP_lock_ISR_disable_and_acquire( &chain_lock, *level );
+  _SMP_lock_ISR_disable_and_acquire( &chain_lock, lock_context );
 }
 
-static void chain_release( ISR_Level *level )
+static void chain_release( SMP_lock_Context *lock_context )
 {
-  _SMP_lock_Release_and_ISR_enable( &chain_lock, *level );
+  _SMP_lock_Release_and_ISR_enable( &chain_lock, lock_context );
 }
 
 void rtems_chain_extract( rtems_chain_node *node )
 {
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   _Chain_Extract_unprotected( node );
-  chain_release( &level );
+  chain_release( &lock_context );
 }
 
 rtems_chain_node *rtems_chain_get( rtems_chain_control *chain )
 {
   rtems_chain_node *node;
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   node = _Chain_Get_unprotected( chain );
-  chain_release( &level );
+  chain_release( &lock_context );
 
   return node;
 }
 
 void rtems_chain_insert( rtems_chain_node *after_node, rtems_chain_node *node )
 {
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   _Chain_Insert_unprotected( after_node, node );
-  chain_release( &level );
+  chain_release( &lock_context );
 }
 
 void rtems_chain_append(
@@ -69,11 +69,11 @@ void rtems_chain_append(
   rtems_chain_node *node
 )
 {
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   _Chain_Append_unprotected( chain, node );
-  chain_release( &level );
+  chain_release( &lock_context );
 }
 
 void rtems_chain_prepend(
@@ -81,11 +81,11 @@ void rtems_chain_prepend(
   rtems_chain_node *node
 )
 {
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   _Chain_Prepend_unprotected( chain, node );
-  chain_release( &level );
+  chain_release( &lock_context );
 }
 
 bool rtems_chain_append_with_empty_check(
@@ -94,11 +94,11 @@ bool rtems_chain_append_with_empty_check(
 )
 {
   bool was_empty;
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   was_empty = _Chain_Append_with_empty_check_unprotected( chain, node );
-  chain_release( &level );
+  chain_release( &lock_context );
 
   return was_empty;
 }
@@ -109,11 +109,11 @@ bool rtems_chain_prepend_with_empty_check(
 )
 {
   bool was_empty;
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   was_empty = _Chain_Prepend_with_empty_check_unprotected( chain, node );
-  chain_release( &level );
+  chain_release( &lock_context );
 
   return was_empty;
 }
@@ -124,11 +124,11 @@ bool rtems_chain_get_with_empty_check(
 )
 {
   bool is_empty_now;
-  ISR_Level level;
+  SMP_lock_Context lock_context;
 
-  chain_acquire( &level );
+  chain_acquire( &lock_context );
   is_empty_now = _Chain_Get_with_empty_check_unprotected( chain, node );
-  chain_release( &level );
+  chain_release( &lock_context );
 
   return is_empty_now;
 }