[PATCH] rtems: Move scheduler directives to own header

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Dec 2 13:21:44 UTC 2021


Move all rtems_scheduler_* directives to the new header file
<rtems/rtems/scheduler.h>.  Add a Scheduler Manager API and
implementation group.
---
 cpukit/include/rtems.h                        |   1 +
 cpukit/include/rtems/rtems/scheduler.h        | 551 ++++++++++++++++++
 cpukit/include/rtems/rtems/tasks.h            | 480 +--------------
 cpukit/include/rtems/rtems/tasksimpl.h        |   8 +
 cpukit/libmisc/cpuuse/cpuusagereset.c         |   1 +
 cpukit/rtems/src/scheduleraddprocessor.c      |   4 +-
 cpukit/rtems/src/schedulergetmaxprio.c        |   4 +-
 cpukit/rtems/src/schedulergetprocessor.c      |   4 +-
 cpukit/rtems/src/schedulergetprocessormax.c   |   4 +-
 cpukit/rtems/src/schedulergetprocessorset.c   |   4 +-
 cpukit/rtems/src/schedulerident.c             |   4 +-
 cpukit/rtems/src/scheduleridentbyprocessor.c  |   4 +-
 .../rtems/src/scheduleridentbyprocessorset.c  |   4 +-
 cpukit/rtems/src/schedulermapfromposix.c      |   4 +-
 cpukit/rtems/src/schedulermaptoposix.c        |   4 +-
 cpukit/rtems/src/schedulerremoveprocessor.c   |   4 +-
 spec/build/cpukit/librtemscpu.yml             |   1 +
 17 files changed, 585 insertions(+), 501 deletions(-)
 create mode 100644 cpukit/include/rtems/rtems/scheduler.h

diff --git a/cpukit/include/rtems.h b/cpukit/include/rtems.h
index 32d7769150..809b2b77f4 100644
--- a/cpukit/include/rtems.h
+++ b/cpukit/include/rtems.h
@@ -73,6 +73,7 @@
 #include <rtems/rtems/part.h>
 #include <rtems/rtems/ratemon.h>
 #include <rtems/rtems/region.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/rtems/sem.h>
 #include <rtems/rtems/signal.h>
 #include <rtems/rtems/status.h>
diff --git a/cpukit/include/rtems/rtems/scheduler.h b/cpukit/include/rtems/rtems/scheduler.h
new file mode 100644
index 0000000000..8bd041558f
--- /dev/null
+++ b/cpukit/include/rtems/rtems/scheduler.h
@@ -0,0 +1,551 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSImplClassicScheduler
+ *
+ * @brief This header file defines the main parts of the Scheduler Manager API.
+ */
+
+/*
+ * Copyright (C) 2013, 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ * Copyright (C) 1988, 2017 On-Line Applications Research Corporation (OAR)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * This file is part of the RTEMS quality process and was automatically
+ * generated.  If you find something that needs to be fixed or
+ * worded better please post a report or patch to an RTEMS mailing list
+ * or raise a bug report:
+ *
+ * https://www.rtems.org/bugs.html
+ *
+ * For information on updating and regenerating please refer to the How-To
+ * section in the Software Requirements Engineering chapter of the
+ * RTEMS Software Engineering manual.  The manual is provided as a part of
+ * a release.  For development sources please refer to the online
+ * documentation at:
+ *
+ * https://docs.rtems.org
+ */
+
+/* Generated from spec:/rtems/scheduler/if/header */
+
+#ifndef _RTEMS_RTEMS_SCHEDULER_H
+#define _RTEMS_RTEMS_SCHEDULER_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/cpuset.h>
+#include <rtems/rtems/status.h>
+#include <rtems/rtems/types.h>
+#include <rtems/score/smp.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Generated from spec:/rtems/scheduler/if/group */
+
+/**
+ * @defgroup RTEMSAPIClassicScheduler Scheduler Manager
+ *
+ * @ingroup RTEMSAPIClassic
+ *
+ * @brief The scheduling concepts relate to the allocation of processing time
+ *   for tasks.
+ *
+ * The concept of scheduling in real-time systems dictates the ability to
+ * provide an immediate response to specific external events, particularly the
+ * necessity of scheduling tasks to run within a specified time limit after the
+ * occurrence of an event. For example, software embedded in life-support
+ * systems used to monitor hospital patients must take instant action if a
+ * change in the patient’s status is detected.
+ *
+ * The component of RTEMS responsible for providing this capability is
+ * appropriately called the scheduler. The scheduler’s sole purpose is to
+ * allocate the all important resource of processor time to the various tasks
+ * competing for attention.
+ */
+
+/* Generated from spec:/rtems/scheduler/if/ident */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Identifies a scheduler by the object name.
+ *
+ * @param name is the scheduler name to look up.
+ *
+ * @param[out] id is the pointer to an ::rtems_id object.  When the directive
+ *   call is successful, the identifier of the scheduler will be stored in this
+ *   object.
+ *
+ * This directive obtains a scheduler identifier associated with the scheduler
+ * name specified in ``name``.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_NAME There was no scheduler associated with the
+ *   name.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``id`` parameter was NULL.
+ *
+ * @par Notes
+ * @parblock
+ * The scheduler name is determined by the scheduler configuration.
+ *
+ * The scheduler identifier is used with other scheduler related directives to
+ * access the scheduler.
+ * @endparblock
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_ident( rtems_name name, rtems_id *id );
+
+/* Generated from spec:/rtems/scheduler/if/ident-by-processor */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Identifies a scheduler by the processor index.
+ *
+ * @param cpu_index is the processor index to identify the scheduler.
+ *
+ * @param[out] id is the pointer to an ::rtems_id object.  When the directive
+ *   call is successful, the identifier of the scheduler will be stored in this
+ *   object.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``id`` parameter was NULL.
+ *
+ * @retval ::RTEMS_INVALID_NAME The processor index was invalid.
+ *
+ * @retval ::RTEMS_INCORRECT_STATE The processor index was valid, however, the
+ *   corresponding processor was not owned by a scheduler.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_ident_by_processor(
+  uint32_t  cpu_index,
+  rtems_id *id
+);
+
+/* Generated from spec:/rtems/scheduler/if/ident-by-processor-set */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Identifies a scheduler by the processor set.
+ *
+ * @param cpusetsize is the size of the processor set referenced by ``cpuset``
+ *   in bytes.  The size shall be positive.
+ *
+ * @param cpuset is the pointer to a cpu_set_t.  The referenced processor set
+ *   will be used to identify the scheduler.
+ *
+ * @param[out] id is the pointer to an ::rtems_id object.  When the directive
+ *   call is successful, the identifier of the scheduler will be stored in this
+ *   object.
+ *
+ * The scheduler is selected according to the highest numbered online processor
+ * in the specified processor set.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``id`` parameter was NULL.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``cpuset`` parameter was NULL.
+ *
+ * @retval ::RTEMS_INVALID_SIZE The processor set size was invalid.
+ *
+ * @retval ::RTEMS_INVALID_NAME The processor set contained no online
+ *   processor.
+ *
+ * @retval ::RTEMS_INCORRECT_STATE The processor set was valid, however, the
+ *   highest numbered online processor in the processor set was not owned by a
+ *   scheduler.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_ident_by_processor_set(
+  size_t           cpusetsize,
+  const cpu_set_t *cpuset,
+  rtems_id        *id
+);
+
+/* Generated from spec:/rtems/scheduler/if/get-maximum-priority */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Gets the maximum task priority of the scheduler.
+ *
+ * @param scheduler_id is the scheduler identifier.
+ *
+ * @param[out] priority is the pointer to an ::rtems_task_priority object.
+ *   When the directive the maximum priority of the scheduler will be stored in
+ *   this object.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
+ *   identifier specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``priority`` parameter was NULL.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_get_maximum_priority(
+  rtems_id             scheduler_id,
+  rtems_task_priority *priority
+);
+
+/* Generated from spec:/rtems/scheduler/if/map-priority-to-posix */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Maps a Classic API task priority to the corresponding POSIX thread
+ *   priority.
+ *
+ * @param scheduler_id is the scheduler identifier.
+ *
+ * @param priority is the Classic API task priority to map.
+ *
+ * @param[out] posix_priority is the pointer to an ``int`` object.  When the
+ *   directive call is successful, the POSIX thread priority value
+ *   corresponding to the specified Classic API task priority value will be
+ *   stored in this object.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``posix_priority`` parameter was NULL.
+ *
+ * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
+ *   identifier specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_INVALID_PRIORITY The Classic API task priority was invalid.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_map_priority_to_posix(
+  rtems_id            scheduler_id,
+  rtems_task_priority priority,
+  int                *posix_priority
+);
+
+/* Generated from spec:/rtems/scheduler/if/map-priority-from-posix */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Maps a POSIX thread priority to the corresponding Classic API task
+ *   priority.
+ *
+ * @param scheduler_id is the scheduler identifier.
+ *
+ * @param posix_priority is the POSIX thread priority to map.
+ *
+ * @param[out] priority is the pointer to an ::rtems_task_priority object.
+ *   When the directive call is successful, the Classic API task priority value
+ *   corresponding to the specified POSIX thread priority value will be stored
+ *   in this object.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``priority`` parameter was NULL.
+ *
+ * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
+ *   identifier specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_INVALID_PRIORITY The POSIX thread priority was invalid.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_map_priority_from_posix(
+  rtems_id             scheduler_id,
+  int                  posix_priority,
+  rtems_task_priority *priority
+);
+
+/* Generated from spec:/rtems/scheduler/if/get-processor */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Returns the index of the current processor.
+ *
+ * Where the system was built with SMP support disabled, this directive
+ * evaluates to a compile time constant of zero.
+ *
+ * Where the system was built with SMP support enabled, this directive returns
+ * the index of the current processor.  The set of processor indices is the
+ * range of integers starting with zero up to
+ * rtems_scheduler_get_processor_maximum() minus one.
+ *
+ * @return Returns the index of the current processor.
+ *
+ * @par Notes
+ * Outside of sections with disabled thread dispatching the current processor
+ * index may change after every instruction since the thread may migrate from
+ * one processor to another.  Sections with disabled interrupts are sections
+ * with thread dispatching disabled.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+uint32_t rtems_scheduler_get_processor( void );
+
+/* Generated from spec:/rtems/scheduler/if/get-processor-macro */
+#define rtems_scheduler_get_processor() _SMP_Get_current_processor()
+
+/* Generated from spec:/rtems/scheduler/if/get-processor-maximum */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Returns the processor maximum supported by the system.
+ *
+ * Where the system was built with SMP support disabled, this directive
+ * evaluates to a compile time constant of one.
+ *
+ * Where the system was built with SMP support enabled, this directive returns
+ * the minimum of the processors (physically or virtually) available at the
+ * target and the configured processor maximum (see
+ * #CONFIGURE_MAXIMUM_PROCESSORS).  Not all processors in the range from
+ * processor index zero to the last processor index (which is the processor
+ * maximum minus one) may be configured to be used by a scheduler or may be
+ * online (online processors have a scheduler assigned).
+ *
+ * @return Returns the processor maximum supported by the system.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+uint32_t rtems_scheduler_get_processor_maximum( void );
+
+/* Generated from spec:/rtems/scheduler/if/get-processor-maximum-macro */
+#define rtems_scheduler_get_processor_maximum() _SMP_Get_processor_maximum()
+
+/* Generated from spec:/rtems/scheduler/if/get-processor-set */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Gets the set of processors owned by the scheduler.
+ *
+ * @param scheduler_id is the scheduler identifier.
+ *
+ * @param cpusetsize is the size of the processor set referenced by ``cpuset``
+ *   in bytes.
+ *
+ * @param[out] cpuset is the pointer to a cpu_set_t object.  When the directive
+ *   call is successful, the processor set of the scheduler will be stored in
+ *   this object.  A set bit in the processor set means that the corresponding
+ *   processor is owned by the scheduler, otherwise the bit is cleared.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ADDRESS The ``cpuset`` parameter was NULL.
+ *
+ * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
+ *   identifier specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_INVALID_SIZE The provided processor set was too small for
+ *   the set of processors owned by the scheduler.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within any runtime context.
+ *
+ * * The directive will not cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_get_processor_set(
+  rtems_id   scheduler_id,
+  size_t     cpusetsize,
+  cpu_set_t *cpuset
+);
+
+/* Generated from spec:/rtems/scheduler/if/add-processor */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Adds the processor to the set of processors owned by the scheduler.
+ *
+ * @param scheduler_id is the scheduler identifier.
+ *
+ * @param cpu_index is the index of the processor to add.
+ *
+ * This directive adds the processor specified by the ``cpu_index`` to the
+ * scheduler specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
+ *   identifier specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_NOT_CONFIGURED The processor was not configured to be used
+ *   by the application.
+ *
+ * @retval ::RTEMS_INCORRECT_STATE The processor was configured to be used by
+ *   the application, however, it was not online.
+ *
+ * @retval ::RTEMS_RESOURCE_IN_USE The processor was already assigned to a
+ *   scheduler.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within device driver initialization
+ *   context.
+ *
+ * * The directive may be called from within task context.
+ *
+ * * The directive may obtain and release the object allocator mutex.  This may
+ *   cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_add_processor(
+  rtems_id scheduler_id,
+  uint32_t cpu_index
+);
+
+/* Generated from spec:/rtems/scheduler/if/remove-processor */
+
+/**
+ * @ingroup RTEMSAPIClassicScheduler
+ *
+ * @brief Removes the processor from the set of processors owned by the
+ *   scheduler.
+ *
+ * @param scheduler_id is the scheduler identifier.
+ *
+ * @param cpu_index is the index of the processor to remove.
+ *
+ * This directive removes the processor specified by the ``cpu_index`` from the
+ * scheduler specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
+ *
+ * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
+ *   identifier specified by ``scheduler_id``.
+ *
+ * @retval ::RTEMS_INVALID_NUMBER The processor was not owned by the scheduler.
+ *
+ * @retval ::RTEMS_RESOURCE_IN_USE The processor was required by at least one
+ *   non-idle task that used the scheduler as its home scheduler.
+ *
+ * @retval ::RTEMS_RESOURCE_IN_USE The processor was the last processor owned
+ *   by the scheduler and there was at least one task that used the scheduler
+ *   as a helping scheduler.
+ *
+ * @par Notes
+ * Removing a processor from a scheduler is a complex operation that involves
+ * all tasks of the system.
+ *
+ * @par Constraints
+ * @parblock
+ * The following constraints apply to this directive:
+ *
+ * * The directive may be called from within device driver initialization
+ *   context.
+ *
+ * * The directive may be called from within task context.
+ *
+ * * The directive may obtain and release the object allocator mutex.  This may
+ *   cause the calling task to be preempted.
+ * @endparblock
+ */
+rtems_status_code rtems_scheduler_remove_processor(
+  rtems_id scheduler_id,
+  uint32_t cpu_index
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTEMS_RTEMS_SCHEDULER_H */
diff --git a/cpukit/include/rtems/rtems/tasks.h b/cpukit/include/rtems/rtems/tasks.h
index 8e87bfd14a..e4609f6e9f 100644
--- a/cpukit/include/rtems/rtems/tasks.h
+++ b/cpukit/include/rtems/rtems/tasks.h
@@ -9,7 +9,7 @@
  */
 
 /*
- * Copyright (C) 2013, 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ * Copyright (C) 2020, 2021 embedded brains GmbH (http://www.embedded-brains.de)
  * Copyright (C) 1988, 2017 On-Line Applications Research Corporation (OAR)
  *
  * Redistribution and use in source and binary forms, with or without
@@ -68,7 +68,6 @@
 #include <rtems/score/context.h>
 #include <rtems/score/cpu.h>
 #include <rtems/score/object.h>
-#include <rtems/score/smp.h>
 #include <rtems/score/stack.h>
 #include <rtems/score/watchdogticks.h>
 
@@ -76,29 +75,6 @@
 extern "C" {
 #endif
 
-/* Generated from spec:/rtems/scheduler/if/group */
-
-/**
- * @defgroup RTEMSAPIClassicScheduler Scheduler Manager
- *
- * @ingroup RTEMSAPIClassic
- *
- * @brief The scheduling concepts relate to the allocation of processing time
- *   for tasks.
- *
- * The concept of scheduling in real-time systems dictates the ability to
- * provide an immediate response to specific external events, particularly the
- * necessity of scheduling tasks to run within a specified time limit after the
- * occurrence of an event. For example, software embedded in life-support
- * systems used to monitor hospital patients must take instant action if a
- * change in the patient’s status is detected.
- *
- * The component of RTEMS responsible for providing this capability is
- * appropriately called the scheduler. The scheduler’s sole purpose is to
- * allocate the all important resource of processor time to the various tasks
- * competing for attention.
- */
-
 /* Generated from spec:/rtems/task/if/group */
 
 /**
@@ -442,460 +418,6 @@ rtems_task_priority _RTEMS_Maximum_priority( void );
  */
 #define RTEMS_MAXIMUM_PRIORITY _RTEMS_Maximum_priority()
 
-/* Generated from spec:/rtems/scheduler/if/ident */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Identifies a scheduler by the object name.
- *
- * @param name is the scheduler name to look up.
- *
- * @param[out] id is the pointer to an ::rtems_id object.  When the directive
- *   call is successful, the identifier of the scheduler will be stored in this
- *   object.
- *
- * This directive obtains a scheduler identifier associated with the scheduler
- * name specified in ``name``.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_NAME There was no scheduler associated with the
- *   name.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``id`` parameter was NULL.
- *
- * @par Notes
- * @parblock
- * The scheduler name is determined by the scheduler configuration.
- *
- * The scheduler identifier is used with other scheduler related directives to
- * access the scheduler.
- * @endparblock
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_ident( rtems_name name, rtems_id *id );
-
-/* Generated from spec:/rtems/scheduler/if/ident-by-processor */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Identifies a scheduler by the processor index.
- *
- * @param cpu_index is the processor index to identify the scheduler.
- *
- * @param[out] id is the pointer to an ::rtems_id object.  When the directive
- *   call is successful, the identifier of the scheduler will be stored in this
- *   object.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``id`` parameter was NULL.
- *
- * @retval ::RTEMS_INVALID_NAME The processor index was invalid.
- *
- * @retval ::RTEMS_INCORRECT_STATE The processor index was valid, however, the
- *   corresponding processor was not owned by a scheduler.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_ident_by_processor(
-  uint32_t  cpu_index,
-  rtems_id *id
-);
-
-/* Generated from spec:/rtems/scheduler/if/ident-by-processor-set */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Identifies a scheduler by the processor set.
- *
- * @param cpusetsize is the size of the processor set referenced by ``cpuset``
- *   in bytes.  The size shall be positive.
- *
- * @param cpuset is the pointer to a cpu_set_t.  The referenced processor set
- *   will be used to identify the scheduler.
- *
- * @param[out] id is the pointer to an ::rtems_id object.  When the directive
- *   call is successful, the identifier of the scheduler will be stored in this
- *   object.
- *
- * The scheduler is selected according to the highest numbered online processor
- * in the specified processor set.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``id`` parameter was NULL.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``cpuset`` parameter was NULL.
- *
- * @retval ::RTEMS_INVALID_SIZE The processor set size was invalid.
- *
- * @retval ::RTEMS_INVALID_NAME The processor set contained no online
- *   processor.
- *
- * @retval ::RTEMS_INCORRECT_STATE The processor set was valid, however, the
- *   highest numbered online processor in the processor set was not owned by a
- *   scheduler.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_ident_by_processor_set(
-  size_t           cpusetsize,
-  const cpu_set_t *cpuset,
-  rtems_id        *id
-);
-
-/* Generated from spec:/rtems/scheduler/if/get-maximum-priority */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Gets the maximum task priority of the scheduler.
- *
- * @param scheduler_id is the scheduler identifier.
- *
- * @param[out] priority is the pointer to an ::rtems_task_priority object.
- *   When the directive the maximum priority of the scheduler will be stored in
- *   this object.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
- *   identifier specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``priority`` parameter was NULL.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_get_maximum_priority(
-  rtems_id             scheduler_id,
-  rtems_task_priority *priority
-);
-
-/* Generated from spec:/rtems/scheduler/if/map-priority-to-posix */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Maps a Classic API task priority to the corresponding POSIX thread
- *   priority.
- *
- * @param scheduler_id is the scheduler identifier.
- *
- * @param priority is the Classic API task priority to map.
- *
- * @param[out] posix_priority is the pointer to an ``int`` object.  When the
- *   directive call is successful, the POSIX thread priority value
- *   corresponding to the specified Classic API task priority value will be
- *   stored in this object.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``posix_priority`` parameter was NULL.
- *
- * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
- *   identifier specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_INVALID_PRIORITY The Classic API task priority was invalid.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_map_priority_to_posix(
-  rtems_id            scheduler_id,
-  rtems_task_priority priority,
-  int                *posix_priority
-);
-
-/* Generated from spec:/rtems/scheduler/if/map-priority-from-posix */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Maps a POSIX thread priority to the corresponding Classic API task
- *   priority.
- *
- * @param scheduler_id is the scheduler identifier.
- *
- * @param posix_priority is the POSIX thread priority to map.
- *
- * @param[out] priority is the pointer to an ::rtems_task_priority object.
- *   When the directive call is successful, the Classic API task priority value
- *   corresponding to the specified POSIX thread priority value will be stored
- *   in this object.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``priority`` parameter was NULL.
- *
- * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
- *   identifier specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_INVALID_PRIORITY The POSIX thread priority was invalid.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_map_priority_from_posix(
-  rtems_id             scheduler_id,
-  int                  posix_priority,
-  rtems_task_priority *priority
-);
-
-/* Generated from spec:/rtems/scheduler/if/get-processor */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Returns the index of the current processor.
- *
- * Where the system was built with SMP support disabled, this directive
- * evaluates to a compile time constant of zero.
- *
- * Where the system was built with SMP support enabled, this directive returns
- * the index of the current processor.  The set of processor indices is the
- * range of integers starting with zero up to
- * rtems_scheduler_get_processor_maximum() minus one.
- *
- * @return Returns the index of the current processor.
- *
- * @par Notes
- * Outside of sections with disabled thread dispatching the current processor
- * index may change after every instruction since the thread may migrate from
- * one processor to another.  Sections with disabled interrupts are sections
- * with thread dispatching disabled.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-uint32_t rtems_scheduler_get_processor( void );
-
-/* Generated from spec:/rtems/scheduler/if/get-processor-macro */
-#define rtems_scheduler_get_processor() _SMP_Get_current_processor()
-
-/* Generated from spec:/rtems/scheduler/if/get-processor-maximum */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Returns the processor maximum supported by the system.
- *
- * Where the system was built with SMP support disabled, this directive
- * evaluates to a compile time constant of one.
- *
- * Where the system was built with SMP support enabled, this directive returns
- * the minimum of the processors (physically or virtually) available at the
- * target and the configured processor maximum (see
- * #CONFIGURE_MAXIMUM_PROCESSORS).  Not all processors in the range from
- * processor index zero to the last processor index (which is the processor
- * maximum minus one) may be configured to be used by a scheduler or may be
- * online (online processors have a scheduler assigned).
- *
- * @return Returns the processor maximum supported by the system.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-uint32_t rtems_scheduler_get_processor_maximum( void );
-
-/* Generated from spec:/rtems/scheduler/if/get-processor-maximum-macro */
-#define rtems_scheduler_get_processor_maximum() _SMP_Get_processor_maximum()
-
-/* Generated from spec:/rtems/scheduler/if/get-processor-set */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Gets the set of processors owned by the scheduler.
- *
- * @param scheduler_id is the scheduler identifier.
- *
- * @param cpusetsize is the size of the processor set referenced by ``cpuset``
- *   in bytes.
- *
- * @param[out] cpuset is the pointer to a cpu_set_t object.  When the directive
- *   call is successful, the processor set of the scheduler will be stored in
- *   this object.  A set bit in the processor set means that the corresponding
- *   processor is owned by the scheduler, otherwise the bit is cleared.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ADDRESS The ``cpuset`` parameter was NULL.
- *
- * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
- *   identifier specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_INVALID_SIZE The provided processor set was too small for
- *   the set of processors owned by the scheduler.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within any runtime context.
- *
- * * The directive will not cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_get_processor_set(
-  rtems_id   scheduler_id,
-  size_t     cpusetsize,
-  cpu_set_t *cpuset
-);
-
-/* Generated from spec:/rtems/scheduler/if/add-processor */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Adds the processor to the set of processors owned by the scheduler.
- *
- * @param scheduler_id is the scheduler identifier.
- *
- * @param cpu_index is the index of the processor to add.
- *
- * This directive adds the processor specified by the ``cpu_index`` to the
- * scheduler specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
- *   identifier specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_NOT_CONFIGURED The processor was not configured to be used
- *   by the application.
- *
- * @retval ::RTEMS_INCORRECT_STATE The processor was configured to be used by
- *   the application, however, it was not online.
- *
- * @retval ::RTEMS_RESOURCE_IN_USE The processor was already assigned to a
- *   scheduler.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within device driver initialization
- *   context.
- *
- * * The directive may be called from within task context.
- *
- * * The directive may obtain and release the object allocator mutex.  This may
- *   cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_add_processor(
-  rtems_id scheduler_id,
-  uint32_t cpu_index
-);
-
-/* Generated from spec:/rtems/scheduler/if/remove-processor */
-
-/**
- * @ingroup RTEMSAPIClassicScheduler
- *
- * @brief Removes the processor from the set of processors owned by the
- *   scheduler.
- *
- * @param scheduler_id is the scheduler identifier.
- *
- * @param cpu_index is the index of the processor to remove.
- *
- * This directive removes the processor specified by the ``cpu_index`` from the
- * scheduler specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_SUCCESSFUL The requested operation was successful.
- *
- * @retval ::RTEMS_INVALID_ID There was no scheduler associated with the
- *   identifier specified by ``scheduler_id``.
- *
- * @retval ::RTEMS_INVALID_NUMBER The processor was not owned by the scheduler.
- *
- * @retval ::RTEMS_RESOURCE_IN_USE The processor was required by at least one
- *   non-idle task that used the scheduler as its home scheduler.
- *
- * @retval ::RTEMS_RESOURCE_IN_USE The processor was the last processor owned
- *   by the scheduler and there was at least one task that used the scheduler
- *   as a helping scheduler.
- *
- * @par Notes
- * Removing a processor from a scheduler is a complex operation that involves
- * all tasks of the system.
- *
- * @par Constraints
- * @parblock
- * The following constraints apply to this directive:
- *
- * * The directive may be called from within device driver initialization
- *   context.
- *
- * * The directive may be called from within task context.
- *
- * * The directive may obtain and release the object allocator mutex.  This may
- *   cause the calling task to be preempted.
- * @endparblock
- */
-rtems_status_code rtems_scheduler_remove_processor(
-  rtems_id scheduler_id,
-  uint32_t cpu_index
-);
-
 /* Generated from spec:/rtems/task/if/create */
 
 /**
diff --git a/cpukit/include/rtems/rtems/tasksimpl.h b/cpukit/include/rtems/rtems/tasksimpl.h
index 62a618b635..f32255b0d9 100644
--- a/cpukit/include/rtems/rtems/tasksimpl.h
+++ b/cpukit/include/rtems/rtems/tasksimpl.h
@@ -111,6 +111,14 @@ RTEMS_INLINE_ROUTINE rtems_task_priority _RTEMS_Priority_From_core(
 
 /**@}*/
 
+/**
+ * @defgroup RTEMSImplClassicScheduler Scheduler Manager
+ *
+ * @ingroup RTEMSImplClassic
+ *
+ * @brief This group contains the Scheduler Manager implementation.
+ */
+
 #if defined(RTEMS_MULTIPROCESSING)
 #include <rtems/rtems/taskmp.h>
 #endif
diff --git a/cpukit/libmisc/cpuuse/cpuusagereset.c b/cpukit/libmisc/cpuuse/cpuusagereset.c
index d1f0e65180..d677c6d330 100644
--- a/cpukit/libmisc/cpuuse/cpuusagereset.c
+++ b/cpukit/libmisc/cpuuse/cpuusagereset.c
@@ -20,6 +20,7 @@
 #endif
 
 #include <rtems/cpuuse.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/percpu.h>
 #include <rtems/score/todimpl.h>
 #include <rtems/score/schedulerimpl.h>
diff --git a/cpukit/rtems/src/scheduleraddprocessor.c b/cpukit/rtems/src/scheduleraddprocessor.c
index d8e55a1c97..e9984fd989 100644
--- a/cpukit/rtems/src/scheduleraddprocessor.c
+++ b/cpukit/rtems/src/scheduleraddprocessor.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_add_processor().
@@ -25,7 +25,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/assert.h>
 #include <rtems/score/schedulerimpl.h>
 #include <rtems/config.h>
diff --git a/cpukit/rtems/src/schedulergetmaxprio.c b/cpukit/rtems/src/schedulergetmaxprio.c
index 49633387e0..77be7faa2d 100644
--- a/cpukit/rtems/src/schedulergetmaxprio.c
+++ b/cpukit/rtems/src/schedulergetmaxprio.c
@@ -3,7 +3,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_get_maximum_priority().
@@ -38,7 +38,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/schedulerimpl.h>
 
 rtems_status_code rtems_scheduler_get_maximum_priority(
diff --git a/cpukit/rtems/src/schedulergetprocessor.c b/cpukit/rtems/src/schedulergetprocessor.c
index 5aafeae204..687b55b0c8 100644
--- a/cpukit/rtems/src/schedulergetprocessor.c
+++ b/cpukit/rtems/src/schedulergetprocessor.c
@@ -3,7 +3,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_get_processor() which may be used by binding for languages
@@ -39,7 +39,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 
 static uint32_t _RTEMS_Scheduler_get_processor( void )
 {
diff --git a/cpukit/rtems/src/schedulergetprocessormax.c b/cpukit/rtems/src/schedulergetprocessormax.c
index 0091a6e544..1b4796f81a 100644
--- a/cpukit/rtems/src/schedulergetprocessormax.c
+++ b/cpukit/rtems/src/schedulergetprocessormax.c
@@ -3,7 +3,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_get_processor_maximum() which may be used by binding for
@@ -39,7 +39,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 
 static uint32_t _RTEMS_Scheduler_get_processor_maximum( void )
 {
diff --git a/cpukit/rtems/src/schedulergetprocessorset.c b/cpukit/rtems/src/schedulergetprocessorset.c
index 71a351528a..3a3b92b7c0 100644
--- a/cpukit/rtems/src/schedulergetprocessorset.c
+++ b/cpukit/rtems/src/schedulergetprocessorset.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_get_processor_set().
@@ -25,7 +25,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/schedulerimpl.h>
 
 rtems_status_code rtems_scheduler_get_processor_set(
diff --git a/cpukit/rtems/src/schedulerident.c b/cpukit/rtems/src/schedulerident.c
index bc8ada39df..e2d4a01996 100644
--- a/cpukit/rtems/src/schedulerident.c
+++ b/cpukit/rtems/src/schedulerident.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_ident().
@@ -25,7 +25,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/schedulerimpl.h>
 
 rtems_status_code rtems_scheduler_ident(
diff --git a/cpukit/rtems/src/scheduleridentbyprocessor.c b/cpukit/rtems/src/scheduleridentbyprocessor.c
index a03ef7b04e..d6d980b4e3 100644
--- a/cpukit/rtems/src/scheduleridentbyprocessor.c
+++ b/cpukit/rtems/src/scheduleridentbyprocessor.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_ident_by_processor().
@@ -25,7 +25,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/assert.h>
 #include <rtems/score/schedulerimpl.h>
 
diff --git a/cpukit/rtems/src/scheduleridentbyprocessorset.c b/cpukit/rtems/src/scheduleridentbyprocessorset.c
index 8d55d470f5..15ef1780b7 100644
--- a/cpukit/rtems/src/scheduleridentbyprocessorset.c
+++ b/cpukit/rtems/src/scheduleridentbyprocessorset.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_ident_by_processor_set().
@@ -25,7 +25,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/assert.h>
 #include <rtems/score/schedulerimpl.h>
 
diff --git a/cpukit/rtems/src/schedulermapfromposix.c b/cpukit/rtems/src/schedulermapfromposix.c
index 72170582a4..dac748cae5 100644
--- a/cpukit/rtems/src/schedulermapfromposix.c
+++ b/cpukit/rtems/src/schedulermapfromposix.c
@@ -3,7 +3,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_map_priority_from_posix().
@@ -38,7 +38,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/schedulerimpl.h>
 
 rtems_status_code rtems_scheduler_map_priority_from_posix(
diff --git a/cpukit/rtems/src/schedulermaptoposix.c b/cpukit/rtems/src/schedulermaptoposix.c
index 38afe87d0e..1d3b8fc085 100644
--- a/cpukit/rtems/src/schedulermaptoposix.c
+++ b/cpukit/rtems/src/schedulermaptoposix.c
@@ -3,7 +3,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_map_priority_to_posix().
@@ -38,7 +38,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/schedulerimpl.h>
 
 rtems_status_code rtems_scheduler_map_priority_to_posix(
diff --git a/cpukit/rtems/src/schedulerremoveprocessor.c b/cpukit/rtems/src/schedulerremoveprocessor.c
index 3136a8e0c0..b8861634d3 100644
--- a/cpukit/rtems/src/schedulerremoveprocessor.c
+++ b/cpukit/rtems/src/schedulerremoveprocessor.c
@@ -1,7 +1,7 @@
 /**
  * @file
  *
- * @ingroup RTEMSImplClassic
+ * @ingroup RTEMSImplClassicScheduler
  *
  * @brief This source file contains the implementation of
  *   rtems_scheduler_remove_processor().
@@ -25,7 +25,7 @@
 #include "config.h"
 #endif
 
-#include <rtems/rtems/tasks.h>
+#include <rtems/rtems/scheduler.h>
 #include <rtems/score/schedulerimpl.h>
 #include <rtems/config.h>
 
diff --git a/spec/build/cpukit/librtemscpu.yml b/spec/build/cpukit/librtemscpu.yml
index 319ea26e4d..77c8d316e3 100644
--- a/spec/build/cpukit/librtemscpu.yml
+++ b/spec/build/cpukit/librtemscpu.yml
@@ -303,6 +303,7 @@ install:
   - cpukit/include/rtems/rtems/region.h
   - cpukit/include/rtems/rtems/regiondata.h
   - cpukit/include/rtems/rtems/regionimpl.h
+  - cpukit/include/rtems/rtems/scheduler.h
   - cpukit/include/rtems/rtems/sem.h
   - cpukit/include/rtems/rtems/semdata.h
   - cpukit/include/rtems/rtems/semimpl.h
-- 
2.26.2





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