From 981eed21761cd0036f0ac61042adea09d8a595a2 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Fri, 29 Apr 2016 12:09:32 +0200
Subject: score: Add dummy Strong APA scheduler

Start with a copy of the Priority SMP scheduler implementation.

Update #2510.
---
 cpukit/sapi/include/confdefs.h        | 29 +++++++++++++++++++++++++++++
 cpukit/sapi/include/rtems/scheduler.h | 20 ++++++++++++++++++++
 2 files changed, 49 insertions(+)

(limited to 'cpukit/sapi')

diff --git a/cpukit/sapi/include/confdefs.h b/cpukit/sapi/include/confdefs.h
index 006cdbd6f5..ceed2a4b9d 100644
--- a/cpukit/sapi/include/confdefs.h
+++ b/cpukit/sapi/include/confdefs.h
@@ -771,6 +771,7 @@ extern rtems_initialization_tasks_table Initialization_tasks[];
  *  - CONFIGURE_SCHEDULER_PRIORITY_SMP - Deterministic Priority SMP Scheduler
  *  - CONFIGURE_SCHEDULER_PRIORITY_AFFINITY_SMP - Deterministic
  *    Priority SMP Affinity Scheduler
+ *  - CONFIGURE_SCHEDULER_STRONG_APA - Strong APA Scheduler
  *  - CONFIGURE_SCHEDULER_SIMPLE - Light-weight Priority Scheduler
  *  - CONFIGURE_SCHEDULER_SIMPLE_SMP - Simple SMP Priority Scheduler
  *  - CONFIGURE_SCHEDULER_EDF - EDF Scheduler
@@ -795,6 +796,7 @@ extern rtems_initialization_tasks_table Initialization_tasks[];
     !defined(CONFIGURE_SCHEDULER_PRIORITY) && \
     !defined(CONFIGURE_SCHEDULER_PRIORITY_SMP) && \
     !defined(CONFIGURE_SCHEDULER_PRIORITY_AFFINITY_SMP) && \
+    !defined(CONFIGURE_SCHEDULER_STRONG_APA) && \
     !defined(CONFIGURE_SCHEDULER_SIMPLE) && \
     !defined(CONFIGURE_SCHEDULER_SIMPLE_SMP) && \
     !defined(CONFIGURE_SCHEDULER_EDF) && \
@@ -889,6 +891,30 @@ extern rtems_initialization_tasks_table Initialization_tasks[];
   #endif
 #endif
 
+/*
+ * If the Strong APA Scheduler is selected, then configure for
+ * it.
+ */
+#if defined(CONFIGURE_SCHEDULER_STRONG_APA)
+  #if !defined(CONFIGURE_SCHEDULER_NAME)
+    /** Configure the name of the scheduler instance */
+    #define CONFIGURE_SCHEDULER_NAME rtems_build_name('M', 'A', 'P', 'A')
+  #endif
+
+  #if !defined(CONFIGURE_SCHEDULER_CONTROLS)
+    /** Configure the context needed by the scheduler instance */
+    #define CONFIGURE_SCHEDULER_CONTEXT \
+      RTEMS_SCHEDULER_CONTEXT_STRONG_APA( \
+        dflt, \
+        CONFIGURE_MAXIMUM_PRIORITY + 1 \
+      )
+
+    /** Configure the controls for this scheduler instance */
+    #define CONFIGURE_SCHEDULER_CONTROLS \
+      RTEMS_SCHEDULER_CONTROL_STRONG_APA(dflt, CONFIGURE_SCHEDULER_NAME)
+  #endif
+#endif
+
 /*
  * If the Simple Priority Scheduler is selected, then configure for it.
  */
@@ -3264,6 +3290,9 @@ extern rtems_initialization_tasks_table Initialization_tasks[];
       #ifdef CONFIGURE_SCHEDULER_PRIORITY_AFFINITY_SMP
         Scheduler_priority_affinity_SMP_Node Priority_affinity_SMP;
       #endif
+      #ifdef CONFIGURE_SCHEDULER_STRONG_APA
+        Scheduler_strong_APA_Node Strong_APA;
+      #endif
       #ifdef CONFIGURE_SCHEDULER_USER_PER_THREAD
         CONFIGURE_SCHEDULER_USER_PER_THREAD User;
       #endif
diff --git a/cpukit/sapi/include/rtems/scheduler.h b/cpukit/sapi/include/rtems/scheduler.h
index a1afa668a9..39dff903d4 100644
--- a/cpukit/sapi/include/rtems/scheduler.h
+++ b/cpukit/sapi/include/rtems/scheduler.h
@@ -151,6 +151,26 @@
     }
 #endif
 
+#ifdef CONFIGURE_SCHEDULER_STRONG_APA
+  #include <rtems/score/schedulerstrongapa.h>
+
+  #define RTEMS_SCHEDULER_CONTEXT_STRONG_APA_NAME( name ) \
+    RTEMS_SCHEDULER_CONTEXT_NAME( strong_APA_ ## name )
+
+  #define RTEMS_SCHEDULER_CONTEXT_STRONG_APA( name, prio_count ) \
+    static struct { \
+      Scheduler_strong_APA_Context Base; \
+      Chain_Control                Ready[ ( prio_count ) ]; \
+    } RTEMS_SCHEDULER_CONTEXT_STRONG_APA_NAME( name )
+
+  #define RTEMS_SCHEDULER_CONTROL_STRONG_APA( name, obj_name ) \
+    { \
+      &RTEMS_SCHEDULER_CONTEXT_STRONG_APA_NAME( name ).Base.Base.Base, \
+      SCHEDULER_STRONG_APA_ENTRY_POINTS, \
+      ( obj_name ) \
+    }
+#endif
+
 #ifdef CONFIGURE_SCHEDULER_SIMPLE
   #include <rtems/score/schedulersimple.h>
 
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