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* Disable per task variables when SMP is enabledJoel Sherrill2014-04-041-0/+4
| | | | | | Per task variables are inherently unsafe in SMP systems. This patch disables them from the build and adds warnings in the appropriate documentation and configuration sections.
* score: Remove affinity element from thread.Jennifer Averett2014-04-031-10/+0
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* score: Thread life cycle re-implementationSebastian Huber2014-03-311-2/+44
| | | | | | | | | | | | | | | | | | | The thread deletion is now supported on SMP. This change fixes the following PRs: PR1814: SMP race condition between stack free and dispatch PR2035: psxcancel reveals NULL pointer access in _Thread_queue_Extract() The POSIX cleanup handler are now called in the right context (should be called in the context of the terminating thread). http://pubs.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_09.html Add a user extension the reflects a thread termination event. This is used to reclaim the Newlib reentrancy structure (may use file operations), the POSIX cleanup handlers and the POSIX key destructors.
* score: Use thread action for thread restartSebastian Huber2014-03-311-0/+5
| | | | | The thread restart is now supported on SMP. New test smptests/smpthreadlife01.
* score: Add thread actionsSebastian Huber2014-03-311-0/+59
| | | | | | | | | | Thread actions are the building block for efficient implementation of - Classic signals delivery, - POSIX signals delivery, - thread restart notification, - thread delete notification, - forced thread migration on SMP configurations, and - the Multiprocessor Resource Sharing Protocol (MrsP).
* Change all references of rtems.com to rtems.org.Chris Johns2014-03-211-1/+1
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* POSIX keys now enabled in all configurations.Joel Sherrill2014-03-071-1/+12
| | | | | | | Formerly POSIX keys were only enabled when POSIX threads were enabled. Because they are a truly safe alternative to per-task variables in an SMP system, they are being enabled in all configurations.
* Remove trailing whitespace in previous patchesJennifer Averett2014-03-071-1/+1
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* score: Add cpuset support to Score.Jennifer Averett2014-03-071-0/+18
| | | | | | This new Score Handler provides a structure to manage a cpu_set_t plus helper routines to validate the contents against the current system configuration.
* Add thread-local storage (TLS) supportSebastian Huber2014-02-041-0/+2
| | | | | Tested and implemented on ARM, m68k, PowerPC and SPARC. Other architectures need more work.
* smp: Add and use _Assert_Owner_of_giant()Sebastian Huber2013-08-301-2/+2
| | | | | | | | | | | | | | Add and use _ISR_Disable_without_giant() and _ISR_Enable_without_giant() if RTEMS_SMP is defined. On single processor systems the ISR disable/enable was the big hammer which ensured system-wide mutual exclusion. On SMP configurations this no longer works since other processors do not care about disabled interrupts on this processor and continue to execute freely. On SMP in addition to ISR disable/enable an SMP lock must be used. Currently we have only the Giant lock so we can check easily that ISR disable/enable is used only in the right context.
* smp: Optimize Simple SMP schedulerSebastian Huber2013-08-201-0/+15
| | | | | | | | | | Add Thread_Control::is_in_the_air field if configured for SMP. This helps to simplify the extract operation and avoids superfluous inter-processor interrupts. Move the processor allocation step into the enqueue operation. Add and use _Scheduler_simple_smp_Get_highest_ready(). Add and use _Scheduler_SMP_Get_lowest_scheduled().
* score: Create threadq implementation headerSebastian Huber2013-07-261-1/+1
| | | | | | | | Move implementation specific parts of tqdata.h, threadq.h and threadq.inl into new header file threadqimpl.h. The threadq.h contains now only the application visible API. Delete tqdata.h.
* score: Create thread implementation headerSebastian Huber2013-07-261-437/+17
| | | | | | | | Move implementation specific parts of thread.h and thread.inl into new header file threadimpl.h. The thread.h contains now only the application visible API. Remove superfluous header file includes from various files.
* score: PR1782: CPU_USE_DEFERRED_FP_SWITCHSebastian Huber2013-07-231-9/+0
| | | | Do not redefine CPU_USE_DEFERRED_FP_SWITCH.
* score: Changes due to Newlib __DYNAMIC_REENT__Sebastian Huber2013-07-171-0/+3
| | | | | | | | | | | | | Delete _Thread_libc_reent and add __getreent() instead according to __DYNAMIC_REENT__ define. For SMP configurations __DYNAMIC_REENT__ must be defined. A Newlib including the following patch is required: 2013-07-09 Sebastian Huber <sebastian.huber@embedded-brains.de> * libc/include/sys/config.h (__DYNAMIC_REENT__): Define for RTEMS.
* score: Add _Thread_Get_executing()Sebastian Huber2013-07-171-0/+29
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* documentation: Fix Doxygen commentsSebastian Huber2013-06-141-1/+1
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* scheduler: New simple SMP scheduler implementationSebastian Huber2013-06-141-0/+28
| | | | | | | | | | | | | | | | | The new Simple SMP Scheduler allocates a processor for the processor count highest priority ready threads. The thread priority and position in the ready chain are the only information to determine the scheduling decision. Threads with an allocated processor are in the scheduled chain. After initialization the scheduled chain has exactly processor count nodes. Each processor has exactly one allocated thread after initialization. All enqueue and extract operations may exchange threads with the scheduled chain. One thread will be added and another will be removed. The scheduled and ready chain is ordered according to the thread priority order. The chain insert operations are O(count of ready threads), thus this scheduler is unsuitable for most real-time applications. The thread preempt mode will be ignored.
* scheduler: Add start idle thread operationSebastian Huber2013-06-141-1/+5
| | | | Add and use _Scheduler_Start_idle().
* score: Move thread dispatch content to new fileSebastian Huber2013-06-071-105/+0
| | | | | | | Move thread dispatch declarations and inline functions to new header <rtems/score/threaddispatch.h> to make it independent of the Thread_Control structure. This avoids a cyclic dependency in case thread dispatch functions are used for the object implementation.
* smp: New SMP lock APISebastian Huber2013-05-311-1/+8
| | | | | | | | | | | | | | Move the SMP lock implementation to the CPU port. An optimal SMP lock implementation is highly architecture dependent. For example the memory models may be fundamentally different. The new SMP lock API has a flaw. It does not provide the ability to use a local context for acquire and release pairs. Such a context is necessary to implement for example the Mellor-Crummey and Scott (MCS) locks. The SMP lock is currently used in _Thread_Disable_dispatch() and _Thread_Enable_dispatch() and makes them to a giant lock acquire and release. Since these functions do not pass state information via a local context there is currently no use case for such a feature.
* cpukit: Fix many Doxygen warningsJoel Sherrill2013-01-101-7/+1
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* cpukit: Add EOL on files missing EOL at EOFJoel Sherrill2013-01-101-1/+1
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* score: Doxygen Clean Up Task #2Mathew Kallada2012-12-281-38/+43
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* score misc: Score misc: Clean up Doxygen #11 (GCI 2012)Daniel Georgiev2012-12-011-0/+15
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/8013204
* score misc: Score misc: Clean up Doxygen #10 (GCI 2012)Christopher Kerl2012-12-011-2/+23
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/7983216
* score misc: Score misc: Clean up Doxygen #9 (GCI 2012)Alex Ivanov2012-11-301-24/+22
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. https://google-melange.appspot.com/gci/task/view/google/gci2012/7977211
* score misc: Score misc: Clean up Doxygen #7 (GCI 2012)Alex Ivanov2012-11-291-0/+8
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. https://google-melange.appspot.com/gci/task/view/google/gci2012/7986214
* score misc: Score misc: Clean up Doxygen #6 (GCI 2012)Christopher Kerl2012-11-291-5/+11
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/7976215
* score misc: Score misc: Clean up Doxygen #5Alex Ivanov2012-11-291-0/+17
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* Score misc: Clean up Doxygen #4 (GCI 2012)Alexandre Devienne2012-11-281-8/+33
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/7985215
* score misc: Clean up Doxygen #3 (GCI 2012)Alex Ivanov2012-11-281-0/+2
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/7982215
* score misc: Clean up Doxygen #2 (GCI 2012)Christopher Kerl2012-11-281-5/+17
| | | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. http://www.google-melange.com/gci/task/view/google/gci2012/7986213
* score misc: Clean up Doxygen (GCI 2012)Alex Ivanov2012-11-281-0/+1
| | | | | | This patch is a task from GCI 2012 which improves the Doxygen comments in the RTEMS source. https://google-melange.appspot.com/gci/task/view/google/gci2012/7978208
* score/thread.h: Move Thread_CPU_usage_t definition downJoel Sherrill2012-10-021-12/+12
| | | | At the previous location, uint32_t was not available.
* Remove All CVS Id Strings Possible Using a ScriptJoel Sherrill2012-05-111-2/+0
| | | | | | | | | | | | Script does what is expected and tries to do it as smartly as possible. + remove occurrences of two blank comment lines next to each other after Id string line removed. + remove entire comment blocks which only exited to contain CVS Ids + If the processing left a blank line at the top of a file, it was removed.
* score: DocumentationSebastian Huber2012-04-201-0/+3
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* 2011-10-17 Sebastian Huber <sebastian.huber@embedded-brains.de>Sebastian Huber2011-10-171-2/+0
| | | | | | PR 1938/cpukit * score/include/rtems/score/thread.h: Removed obsolete suspend_count field from Thread_Control.
* 2011-09-15 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-09-151-3/+5
| | | | | * score/include/rtems/score/thread.h: Ensure CBS builds with POSIX disabled.
* 2011-06-17 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-06-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * rtems/include/rtems/rtems/types.h, score/include/rtems/score/address.h, score/include/rtems/score/apiext.h, score/include/rtems/score/bitfield.h, score/include/rtems/score/context.h, score/include/rtems/score/corebarrier.h, score/include/rtems/score/coremsg.h, score/include/rtems/score/coremutex.h, score/include/rtems/score/corerwlock.h, score/include/rtems/score/coresem.h, score/include/rtems/score/corespinlock.h, score/include/rtems/score/interr.h, score/include/rtems/score/isr.h, score/include/rtems/score/mpci.h, score/include/rtems/score/mppkt.h, score/include/rtems/score/objectmp.h, score/include/rtems/score/percpu.h, score/include/rtems/score/priority.h, score/include/rtems/score/rbtree.h, score/include/rtems/score/scheduler.h, score/include/rtems/score/smp.h, score/include/rtems/score/smplock.h, score/include/rtems/score/stack.h, score/include/rtems/score/states.h, score/include/rtems/score/thread.h, score/include/rtems/score/threadq.h, score/include/rtems/score/threadsync.h, score/include/rtems/score/timespec.h, score/include/rtems/score/timestamp.h, score/include/rtems/score/timestamp64.h, score/include/rtems/score/tod.h, score/include/rtems/score/tqdata.h, score/include/rtems/score/watchdog.h, score/include/rtems/score/wkspace.h: Mark Score files as in Score Group to improve Doxygen output.
* 2011-06-17 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-06-171-9/+18
| | | | | | | | | | | | | | | | | | | * libcsupport/include/rtems/malloc.h, libmisc/stackchk/stackchk.h, posix/include/rtems/posix/time.h, rtems/include/rtems/rtems/object.h, score/include/rtems/score/apiext.h, score/include/rtems/score/interr.h, score/include/rtems/score/mpci.h, score/include/rtems/score/objectmp.h, score/include/rtems/score/thread.h, score/include/rtems/score/threadmp.h, score/include/rtems/score/threadq.h, score/include/rtems/score/timespec.h, score/include/rtems/score/timestamp.h, score/include/rtems/score/timestamp64.h, score/include/rtems/score/tod.h, score/include/rtems/score/watchdog.h, score/include/rtems/score/wkspace.h: Make @brief formatting more consistent. * score/include/rtems/score/rbtree.h: Also reformat.
* 2011-06-17 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-06-171-8/+1
| | | | | | | | | | | | | | | | | | | PR 1819/cpukit * rtems/src/clocktick.c, score/Makefile.am, score/include/rtems/score/scheduler.h, score/include/rtems/score/schedulerpriority.h, score/include/rtems/score/schedulersimple.h, score/include/rtems/score/schedulersimplesmp.h, score/include/rtems/score/thread.h, score/inline/rtems/score/scheduler.inl: Add a scheduler entry point which is invoked at each clock tick. _Thread_Tickle_timeslice() is now a method owned by the Deterministic Priority Scheduler and shared by the Simple Priority Scheduler. The Simple SMP Scheduler has its own variation on this which does timeslicing bookkeeping on all cores. * score/src/schedulerprioritytick.c, score/src/schedulersimplesmptick.c: New files. * score/src/threadtickletimeslice.c: Removed.
* Remove white-spaces.Ralf Corsepius2011-05-241-1/+1
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* 2011-05-23 Jennifer Averett <Jennifer.Averett@OARcorp.com>Jennifer Averett2011-05-231-0/+55
| | | | | | | * score/Makefile.am, score/include/rtems/score/thread.h, score/inline/rtems/score/thread.inl: Add smp support to dispable dispatch level accesses. * score/src/threaddispatchdisablelevel.c: New file.
* 2011-05-12 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-05-121-10/+0
| | | | | | | | PR 1788/cpukit * score/include/rtems/score/percpu.h, score/include/rtems/score/thread.h: Make time of last context switch part of per cpu information since each core has a different context switch to track.
* 2011-04-22 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-04-221-0/+9
| | | | | | | PR 1782/cpukit * score/include/rtems/score/thread.h: Disable deferred FPU context switches when SMP is enabled. Per code tracking of deferred contexts is not implemented.
* 2011-04-21 Jennifer Averett <Jennifer.Averett@OARcorp.comJennifer Averett2011-04-211-0/+12
| | | | | | | | | | | | | PR 1777/cpukit * libcsupport/src/malloc_deferred.c, libcsupport/src/realloc.c, score/Makefile.am, score/cpu/lm32/irq.c, score/cpu/nios2/irq.c, score/include/rtems/score/coremutex.h, score/include/rtems/score/thread.h, score/inline/rtems/score/thread.inl, score/src/heapfree.c, score/src/pheapwalk.c, score/src/smp.c, score/src/threaddispatch.c: Consolidated access to _Thread_Dispatch_disable_level. * score/src/threaddisabledispatch.c, score/src/threadenabledispatch.c: New files.
* 2011-03-15 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-03-151-7/+4
| | | | | | | * rtems/src/taskresume.c, score/Makefile.am, score/include/rtems/score/thread.h: Convert _Thread_Resume and _Thread_Suspend into macros. * score/src/threadresume.c, score/src/threadsuspend.c: Removed.
* 2011-02-18 Joel Sherrill <joel.sherrill@oarcorp.com>Joel Sherrill2011-02-181-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * sapi/include/confdefs.h, score/Makefile.am, score/include/rtems/score/scheduler.h, score/include/rtems/score/schedulerpriority.h, score/include/rtems/score/thread.h, score/inline/rtems/score/scheduler.inl, score/inline/rtems/score/schedulerpriority.inl, score/src/scheduler.c, score/src/schedulerpriority.c, score/src/schedulerpriorityblock.c, score/src/schedulerpriorityschedule.c, score/src/schedulerpriorityunblock.c, score/src/schedulerpriorityyield.c, score/src/threadchangepriority.c, score/src/threadclose.c, score/src/threadinitialize.c, score/src/threadsetpriority.c, score/src/threadsettransient.c: Significant clean up on Scheduler Plugin Interface. Names were shortened. Missing operations added. Many scheduler files had unneeded includes removed. Made pointer to scheduler information in Thread_Control and Scheduler_Control a void * pointer because the thread and scheduler wrapper should be unaware of scheduler types AND this is broken for user provided schedulers. * score/src/schedulerpriorityallocate.c, score/src/schedulerpriorityenqueue.c, score/src/schedulerpriorityenqueuefirst.c, score/src/schedulerpriorityextract.c, score/src/schedulerpriorityfree.c, score/src/schedulerpriorityupdate.c: New files. * score/src/schedulerprioritythreadschedulerallocate.c, score/src/schedulerprioritythreadschedulerfree.c, score/src/schedulerprioritythreadschedulerupdate.c: Removed.
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