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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /cpukit/include/rtems/score/schedulerpriorityaffinitysmp.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'cpukit/include/rtems/score/schedulerpriorityaffinitysmp.h')
-rw-r--r--cpukit/include/rtems/score/schedulerpriorityaffinitysmp.h181
1 files changed, 181 insertions, 0 deletions
diff --git a/cpukit/include/rtems/score/schedulerpriorityaffinitysmp.h b/cpukit/include/rtems/score/schedulerpriorityaffinitysmp.h
new file mode 100644
index 0000000000..d988d5752a
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+++ b/cpukit/include/rtems/score/schedulerpriorityaffinitysmp.h
@@ -0,0 +1,181 @@
+/**
+ * @file
+ *
+ * @ingroup ScoreSchedulerPriorityAffinitySMP
+ *
+ * @brief Deterministic Priority Affinity SMP Scheduler API
+ */
+
+/*
+ * COPYRIGHT (c) 2014.
+ * On-Line Applications Research Corporation (OAR).
+ *
+ * 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.
+ */
+
+#ifndef _RTEMS_SCORE_SCHEDULERPRIORITYAFFINITYSMP_H
+#define _RTEMS_SCORE_SCHEDULERPRIORITYAFFINITYSMP_H
+
+#include <rtems/score/scheduler.h>
+#include <rtems/score/schedulerpriority.h>
+#include <rtems/score/schedulersmp.h>
+#include <rtems/score/schedulerprioritysmp.h>
+
+#include <sys/cpuset.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @defgroup ScoreSchedulerPriorityAffinitySMP Deterministic Priority Affinity SMP Scheduler
+ *
+ * @ingroup ScoreSchedulerPrioritySMP
+ *
+ * This is an extension of the Deterministic Priority SMP Scheduler. which
+ * is an implementation of the global fixed priority scheduler (G-FP).
+ * It adds thread to core affinity support.
+ *
+ * @note This is the first iteration of this scheduler. It currently tracks
+ * the requested affinity to exercise the Scheduler Framework but it
+ * does not honor that affinity in assigning threads to cores. This
+ * will be added in a subsequent revision.
+ * @{
+ */
+
+/**
+ * @brief Entry points for the Deterministic Priority Affinity SMP Scheduler.
+ */
+#define SCHEDULER_PRIORITY_AFFINITY_SMP_ENTRY_POINTS \
+ { \
+ _Scheduler_priority_SMP_Initialize, \
+ _Scheduler_default_Schedule, \
+ _Scheduler_priority_SMP_Yield, \
+ _Scheduler_priority_affinity_SMP_Block, \
+ _Scheduler_priority_affinity_SMP_Unblock, \
+ _Scheduler_priority_affinity_SMP_Update_priority, \
+ _Scheduler_default_Map_priority, \
+ _Scheduler_default_Unmap_priority, \
+ _Scheduler_priority_affinity_SMP_Ask_for_help, \
+ _Scheduler_priority_affinity_SMP_Reconsider_help_request, \
+ _Scheduler_priority_affinity_SMP_Withdraw_node, \
+ _Scheduler_priority_affinity_SMP_Add_processor, \
+ _Scheduler_priority_affinity_SMP_Remove_processor, \
+ _Scheduler_priority_affinity_SMP_Node_initialize, \
+ _Scheduler_default_Node_destroy, \
+ _Scheduler_default_Release_job, \
+ _Scheduler_default_Cancel_job, \
+ _Scheduler_default_Tick, \
+ _Scheduler_SMP_Start_idle, \
+ _Scheduler_priority_affinity_SMP_Set_affinity \
+ }
+
+/**
+ * @brief Initializes per thread scheduler information
+ *
+ * This routine allocates @a thread->scheduler.
+ *
+ * @param[in] scheduler points to the scheduler specific information.
+ * @param[in] node is the node the scheduler is allocating
+ * management memory for.
+ * @param[in] the_thread the thread of the node.
+ * @param[in] priority is the thread priority.
+ */
+void _Scheduler_priority_affinity_SMP_Node_initialize(
+ const Scheduler_Control *scheduler,
+ Scheduler_Node *node,
+ Thread_Control *the_thread,
+ Priority_Control priority
+);
+
+void _Scheduler_priority_affinity_SMP_Block(
+ const Scheduler_Control *scheduler,
+ Thread_Control *thread,
+ Scheduler_Node *node
+);
+
+void _Scheduler_priority_affinity_SMP_Unblock(
+ const Scheduler_Control *scheduler,
+ Thread_Control *thread,
+ Scheduler_Node *node
+);
+
+void _Scheduler_priority_affinity_SMP_Update_priority(
+ const Scheduler_Control *scheduler,
+ Thread_Control *the_thread,
+ Scheduler_Node *node
+);
+
+bool _Scheduler_priority_affinity_SMP_Ask_for_help(
+ const Scheduler_Control *scheduler,
+ Thread_Control *the_thread,
+ Scheduler_Node *node
+);
+
+void _Scheduler_priority_affinity_SMP_Reconsider_help_request(
+ const Scheduler_Control *scheduler,
+ Thread_Control *the_thread,
+ Scheduler_Node *node
+);
+
+void _Scheduler_priority_affinity_SMP_Withdraw_node(
+ const Scheduler_Control *scheduler,
+ Thread_Control *the_thread,
+ Scheduler_Node *node,
+ Thread_Scheduler_state next_state
+);
+
+void _Scheduler_priority_affinity_SMP_Add_processor(
+ const Scheduler_Control *scheduler,
+ Thread_Control *idle
+);
+
+Thread_Control *_Scheduler_priority_affinity_SMP_Remove_processor(
+ const Scheduler_Control *scheduler,
+ struct Per_CPU_Control *cpu
+);
+
+/**
+ * @brief Set affinity for the priority affinity SMP scheduler.
+ *
+ * @param[in] scheduler The scheduler of the thread.
+ * @param[in] thread The associated thread.
+ * @param[in] affinity The new affinity set.
+ *
+ * @retval true if successful
+ * @retval false if unsuccessful
+ */
+bool _Scheduler_priority_affinity_SMP_Set_affinity(
+ const Scheduler_Control *scheduler,
+ Thread_Control *thread,
+ Scheduler_Node *node,
+ const Processor_mask *affinity
+);
+
+/**
+ * @brief Scheduler node specialization for Deterministic Priority Affinity SMP
+ * schedulers.
+ *
+ * This is a per thread structure.
+ */
+typedef struct {
+ /**
+ * @brief SMP priority scheduler node.
+ */
+ Scheduler_priority_SMP_Node Base;
+
+ /**
+ * @brief The thread processor affinity set.
+ */
+ Processor_mask Affinity;
+} Scheduler_priority_affinity_SMP_Node;
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _RTEMS_SCORE_SCHEDULERPRIORITYAFFINITYSMP_H */