score: Add per scheduler instance maximum priority

The priority values are only valid within a scheduler instance.  Thus,
the maximum priority value must be defined per scheduler instance.  The
first scheduler instance defines PRIORITY_MAXIMUM.  This implies that
RTEMS_MAXIMUM_PRIORITY and POSIX_SCHEDULER_MAXIMUM_PRIORITY are only
valid for threads of the first scheduler instance.  Further
API/implementation changes are necessary to fix this.

Update #2556.

cpukit/sapi/include/confdefs.h

@@ -883,6 +883,7 @@ extern rtems_initialization_tasks_table Initialization_tasks[];
         CONFIGURE_MAXIMUM_PRIORITY + 1 \
       )
 
+    /** Configure the controls for this scheduler instance */
     #define CONFIGURE_SCHEDULER_CONTROLS \
       RTEMS_SCHEDULER_CONTROL_PRIORITY_AFFINITY_SMP( \
         dflt, \
@@ -3349,18 +3350,6 @@ extern rtems_initialization_tasks_table Initialization_tasks[];
   uint32_t rtems_minimum_stack_size =
     CONFIGURE_MINIMUM_TASK_STACK_SIZE;
 
-  /**
-   * This variable specifies the maximum priority value that
-   * a task may have.  This must be a power of 2 between 4
-   * and 256 and is specified in terms of Classic API
-   * priority values.
-   *
-   * NOTE: This is left as a simple uint8_t so it can be externed as
-   *       needed without requring being high enough logical to
-   *       include the full configuration table.
-   */
-  uint8_t rtems_maximum_priority = CONFIGURE_MAXIMUM_PRIORITY;
-
   /**
    * This is the primary Configuration Table for this application.
    */

cpukit/sapi/include/rtems/scheduler.h

@@ -5,7 +5,7 @@
  */
 
 /*
- * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2014, 2016 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
  *  Dornierstr. 4
@@ -70,6 +70,7 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_CBS_NAME( name ).Base, \
       SCHEDULER_CBS_ENTRY_POINTS, \
+      SCHEDULER_CBS_MAXIMUM_PRIORITY, \
       ( obj_name ) \
     }
 #endif
@@ -87,6 +88,7 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_EDF_NAME( name ).Base, \
       SCHEDULER_EDF_ENTRY_POINTS, \
+      SCHEDULER_EDF_MAXIMUM_PRIORITY, \
       ( obj_name ) \
     }
 #endif
@@ -107,6 +109,9 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_PRIORITY_NAME( name ).Base.Base, \
       SCHEDULER_PRIORITY_ENTRY_POINTS, \
+      RTEMS_ARRAY_SIZE( \
+        RTEMS_SCHEDULER_CONTEXT_PRIORITY_NAME( name ).Ready \
+      ) - 1, \
       ( obj_name ) \
     }
 #endif
@@ -127,6 +132,9 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_PRIORITY_AFFINITY_SMP_NAME( name ).Base.Base.Base, \
       SCHEDULER_PRIORITY_AFFINITY_SMP_ENTRY_POINTS, \
+      RTEMS_ARRAY_SIZE( \
+        RTEMS_SCHEDULER_CONTEXT_PRIORITY_AFFINITY_SMP_NAME( name ).Ready \
+      ) - 1, \
       ( obj_name ) \
     }
 #endif
@@ -147,6 +155,9 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP_NAME( name ).Base.Base.Base, \
       SCHEDULER_PRIORITY_SMP_ENTRY_POINTS, \
+      RTEMS_ARRAY_SIZE( \
+        RTEMS_SCHEDULER_CONTEXT_PRIORITY_SMP_NAME( name ).Ready \
+      ) - 1, \
       ( obj_name ) \
     }
 #endif
@@ -167,6 +178,9 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_STRONG_APA_NAME( name ).Base.Base.Base, \
       SCHEDULER_STRONG_APA_ENTRY_POINTS, \
+      RTEMS_ARRAY_SIZE( \
+        RTEMS_SCHEDULER_CONTEXT_STRONG_APA_NAME( name ).Ready \
+      ) - 1, \
       ( obj_name ) \
     }
 #endif
@@ -185,6 +199,7 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_SIMPLE_NAME( name ).Base, \
       SCHEDULER_SIMPLE_ENTRY_POINTS, \
+      SCHEDULER_SIMPLE_MAXIMUM_PRIORITY, \
       ( obj_name ) \
     }
 #endif
@@ -203,6 +218,7 @@
     { \
       &RTEMS_SCHEDULER_CONTEXT_SIMPLE_SMP_NAME( name ).Base.Base, \
       SCHEDULER_SIMPLE_SMP_ENTRY_POINTS, \
+      SCHEDULER_SIMPLE_SMP_MAXIMUM_PRIORITY, \
       ( obj_name ) \
     }
 #endif