score: Split SMP scheduler enqueue function

Extract code from _Scheduler_SMP_Enqueue_ordered() and move it to the
new function _Scheduler_SMP_Enqueue_scheduled_ordered() to avoid
untestable execution paths.

Add and use function _Scheduler_SMP_Unblock().

testsuites/smptests/Makefile.am

@@ -25,6 +25,7 @@ SUBDIRS += smpmigration01
 SUBDIRS += smpmigration02
 SUBDIRS += smpscheduler01
 SUBDIRS += smpscheduler02
+SUBDIRS += smpscheduler03
 SUBDIRS += smpsignal01
 SUBDIRS += smpswitchextension01
 SUBDIRS += smpthreadlife01

testsuites/smptests/configure.ac

@@ -83,6 +83,7 @@ smppsxaffinity02/Makefile
 smppsxsignal01/Makefile
 smpscheduler01/Makefile
 smpscheduler02/Makefile
+smpscheduler03/Makefile
 smpsignal01/Makefile
 smpswitchextension01/Makefile
 smpthreadlife01/Makefile

testsuites/smptests/smpscheduler03/Makefile.am

@@ -0,0 +1,19 @@
+rtems_tests_PROGRAMS = smpscheduler03
+smpscheduler03_SOURCES = init.c
+
+dist_rtems_tests_DATA = smpscheduler03.scn smpscheduler03.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+
+LINK_OBJS = $(smpscheduler03_OBJECTS)
+LINK_LIBS = $(smpscheduler03_LDLIBS)
+
+smpscheduler03$(EXEEXT): $(smpscheduler03_OBJECTS) $(smpscheduler03_DEPENDENCIES)
+	@rm -f smpscheduler03$(EXEEXT)
+	$(make-exe)
+
+include $(top_srcdir)/../automake/local.am

testsuites/smptests/smpscheduler03/init.c

@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems.h>
+#include <rtems/score/threadimpl.h>
+#include <rtems/score/schedulersmpimpl.h>
+
+#include "tmacros.h"
+
+const char rtems_test_name[] = "SMPSCHEDULER 3";
+
+static void task(rtems_task_argument arg)
+{
+  rtems_test_assert(0);
+}
+
+static void test_case(
+  Thread_Control *executing,
+  Scheduler_SMP_Node *node,
+  Scheduler_SMP_Node_state start_state,
+  Priority_Control prio,
+  bool prepend_it,
+  Scheduler_SMP_Node_state new_state
+)
+{
+  switch (start_state) {
+    case SCHEDULER_SMP_NODE_SCHEDULED:
+      _Thread_Change_priority(executing, 1, true);
+      break;
+    case SCHEDULER_SMP_NODE_READY:
+      _Thread_Change_priority(executing, 4, true);
+      break;
+    default:
+      rtems_test_assert(0);
+      break;
+  }
+  rtems_test_assert(node->state == start_state);
+
+  _Thread_Change_priority(executing, prio, prepend_it);
+  rtems_test_assert(node->state == new_state);
+}
+
+static const Scheduler_SMP_Node_state states[2] = {
+  SCHEDULER_SMP_NODE_SCHEDULED,
+  SCHEDULER_SMP_NODE_READY
+};
+
+static const Priority_Control priorities[2] = { 2, 5 };
+
+static const bool prepend_it[2] = { true, false };
+
+static void test(void)
+{
+  rtems_status_code sc;
+  rtems_id task_id;
+  Thread_Control *executing;
+  Scheduler_SMP_Node *node;
+  size_t i;
+  size_t j;
+  size_t k;
+
+  sc = rtems_task_create(
+    rtems_build_name('T', 'A', 'S', 'K'),
+    3,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_MODES,
+    RTEMS_DEFAULT_ATTRIBUTES,
+    &task_id
+  );
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+  sc = rtems_task_start(task_id, task, 0);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+
+  _Thread_Disable_dispatch();
+
+  executing = _Thread_Executing;
+  node = _Scheduler_SMP_Node_get( executing );
+
+  for (i = 0; i < RTEMS_ARRAY_SIZE(states); ++i) {
+    for (j = 0; j < RTEMS_ARRAY_SIZE(priorities); ++j) {
+      for (k = 0; k < RTEMS_ARRAY_SIZE(prepend_it); ++k) {
+        test_case(
+          executing,
+          node,
+          states[i],
+          priorities[j],
+          prepend_it[k],
+          states[j]
+        );
+      }
+    }
+  }
+
+  _Thread_Change_priority(executing, 1, true);
+  rtems_test_assert(node->state == SCHEDULER_SMP_NODE_SCHEDULED);
+
+  _Thread_Enable_dispatch();
+
+  sc = rtems_task_delete(task_id);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
+static void Init(rtems_task_argument arg)
+{
+  TEST_BEGIN();
+
+  test();
+
+  TEST_END();
+  rtems_test_exit(0);
+}
+
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_SMP_APPLICATION
+
+#define CONFIGURE_SMP_MAXIMUM_PROCESSORS 1
+
+#define CONFIGURE_MAXIMUM_TASKS 2
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT
+
+#include <rtems/confdefs.h>

testsuites/smptests/smpscheduler03/smpscheduler03.doc

@@ -0,0 +1,11 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: smpscheduler03
+
+directives:
+
+  - _Scheduler_SMP_Change_priority()
+
+concepts:
+
+  - Ensure that priority changes work.

testsuites/smptests/smpscheduler03/smpscheduler03.scn

@@ -0,0 +1,2 @@
+*** BEGIN OF TEST SMPSCHEDULER 3 ***
+*** END OF TEST SMPSCHEDULER 3 ***