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* region*.c: Ensure return_status is set when RTEMS_MULTIPROCESSING is enabledJoel Sherrill2015-05-218-8/+0
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* timecounter: Use in RTEMSAlexander Krutwig2015-05-208-126/+14
| | | | | | | | Replace timestamp implementation with FreeBSD bintime and timecounters. New test sptests/sptimecounter02. Update #2271.
* rtems: Avoid Giant lock for eventsSebastian Huber2015-05-192-4/+0
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* score: _Thread_Dispatch_disable_critical()Sebastian Huber2015-05-192-2/+2
| | | | | | | Thread dispatching is disabled in case interrupts are disabled. To get an accurate thread dispatch disabled time it is important to use the interrupt disabled instant in case a transition from an interrupt disabled section to a thread dispatch level section happens.
* score: Replace _Thread_Delay_ended()Sebastian Huber2015-05-192-7/+11
| | | | | | | Use _Thread_Timeout() instead. Use pseudo thread queue for nanosleep() to deal with signals. Close #2130.
* score: Delete _Objects_Put_for_get_isr_disable()Sebastian Huber2015-05-192-2/+0
| | | | | This function is superfluous due to the introduction of fine grained locking.
* score: Fine grained locking for MrsPSebastian Huber2015-05-192-10/+7
| | | | Update #2273.
* score: Remove Giant lock in rtems_clock_tick()Sebastian Huber2015-05-191-10/+1
| | | | Update #2307.
* score: Rework _Thread_Change_priority()Sebastian Huber2015-05-191-9/+11
| | | | | | | | | | | | | Move the writes to Thread_Control::current_priority and Thread_Control::real_priority into _Thread_Change_priority() under the protection of the thread lock. Add a filter function to _Thread_Change_priority() to enable specialized variants. Avoid race conditions during a thread priority restore with the new Thread_Control::priority_restore_hint for an important average case optimizations used by priority inheritance mutexes. Update #2273.
* score: Fine grained locking for mutexesSebastian Huber2015-05-192-11/+2
| | | | Update #2273.
* score: Delete _CORE_semaphore_Seize()Sebastian Huber2015-05-191-1/+1
| | | | Rename _CORE_semaphore_Seize_isr_disable() to _CORE_semaphore_Seize().
* score: Fine grained locking for semaphoresSebastian Huber2015-05-192-10/+18
| | | | Update #2273.
* score: Fine grained locking for message queuesSebastian Huber2015-05-196-17/+57
| | | | | | | | | | | Aggregate several critical sections into a bigger one. Sending and receiving messages is now protected by an ISR lock. Thread dispatching is only disabled in case a blocking operation is necessary. The message copy procedure is done inside the critical section (interrupts disabled). Thus this change may have a negative impact on the interrupt latency in case very large messages are transferred. Update #2273.
* score: Delete Thread_queue_Control::timeout_statusSebastian Huber2015-05-199-11/+19
| | | | | Use a parameter for _Thread_queue_Enqueue() instead to reduce memory usage.
* score: Add Thread_queue_Control::LockSebastian Huber2015-05-196-14/+13
| | | | | | | | | | | Move the complete thread queue enqueue procedure into _Thread_queue_Enqueue_critical(). It is possible to use the thread queue lock to protect state of the object embedding the thread queue. This enables per object fine grained locking in the future. Delete _Thread_queue_Enter_critical_section(). Update #2273.
* score: Generalize _Event_Timeout()Sebastian Huber2015-05-193-72/+7
| | | | | | | Add a thread wait timeout code. Replace _Event_Timeout() with a general purpose _Thread_Timeout() watchdog handler. Update #2273.
* score: Reduce thread wait statesSebastian Huber2015-05-192-4/+4
| | | | | | | | | | Merge THREAD_WAIT_STATE_SATISFIED, THREAD_WAIT_STATE_TIMEOUT, THREAD_WAIT_STATE_INTERRUPT_SATISFIED, and THREAD_WAIT_STATE_INTERRUPT_TIMEOUT into one state THREAD_WAIT_STATE_READY_AGAIN. This helps to write generic routines to block a thread. Update #2273.
* rtems: Use once mutex for timer server initSebastian Huber2015-05-191-2/+3
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* score: New timer server implementationSebastian Huber2015-05-193-399/+227
| | | | | | | | Use mostly the standard watchdog operations. Use a system event for synchronization. This implementation is simpler and offers better SMP performance. Close #2131.
* score: Add Watchdog_IteratorSebastian Huber2015-05-191-0/+6
| | | | | | | | | | Rewrite the _Watchdog_Insert(), _Watchdog_Remove() and _Watchdog_Tickle() functions to use iterator items to synchronize concurrent operations. This makes it possible to get rid of the global variables _Watchdog_Sync_level and _Watchdog_Sync_count which are a blocking point for scalable SMP solutions. Update #2307.
* score: Add header to _Watchdog_Remove()Sebastian Huber2015-05-1914-18/+60
| | | | | | | | Add watchdog header parameter to _Watchdog_Remove() to be in line with the other operations. Add _Watchdog_Remove_ticks() and _Watchdog_Remove_seconds() for convenience. Update #2307.
* score: _Thread_queue_Extract()Sebastian Huber2015-05-195-5/+5
| | | | | Remove thread queue parameter from _Thread_queue_Extract() since the current thread queue is stored in the thread control block.
* score: Delete Thread_queue_Control::stateSebastian Huber2015-04-232-2/+2
| | | | | Use a parameter for _Thread_queue_Enqueue() instead to reduce memory usage.
* score: Add _Thread_Get_interrupt_disable()Sebastian Huber2015-04-217-74/+57
| | | | | | | | | | Remove _Thread_Acquire() and _Thread_Acquire_for_executing(). Add utility functions for the default thread lock. Use the default thread lock for the RTEMS events. There is no need to disable thread dispatching and a Giant acquire in _Event_Timeout() since this was already done by the caller. Update #2273.
* score: _Objects_Get_isr_disable()Sebastian Huber2015-04-211-0/+8
| | | | | | | | Do not disable thread dispatching and do not acquire the Giant lock. This makes it possible to use this object get variant for fine grained locking. Update #2273.
* score: _Objects_Get_isr_disable()Sebastian Huber2015-04-212-8/+16
| | | | | | | Use ISR_lock_Context instead of ISR_Level to allow use of ISR locks for low-level locking. Update #2273.
* score: Rename _Watchdog_Reset()Sebastian Huber2015-04-141-2/+1
| | | | Update #2307.
* score: Add Watchdog_HeaderSebastian Huber2015-04-133-22/+22
| | | | | | | This type is intended to encapsulate all state to manage a watchdog chain. Update #2307.
* score: Split _Watchdog_Adjust()Sebastian Huber2015-04-131-1/+1
| | | | | | | | | Split _Watchdog_Adjust() into _Watchdog_Adjust_backward() and _Watchdog_Adjust_forward(). Remove Watchdog_Adjust_directions, _Watchdog_Adjust_seconds() and _Watchdog_Adjust_ticks(). This avoids to check the same condition again. Update #2307.
* rtems: Atomically suspend/resume tasksSebastian Huber2015-04-082-12/+10
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* score: Add scheduler acquire/releaseSebastian Huber2015-03-241-3/+3
| | | | | | | This is currently a global lock for all scheduler instances. It should get replaced with one lock per scheduler instance in the future. Update #2273.
* Disable deprecated warning on implementation of deprecated methodsJoel Sherrill2015-03-178-4/+46
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* cpukit: Remove old DESCRIPTION: in commentsJoel Sherrill2015-03-113-37/+15
| | | | These were remnants of pre-Doxygen comment style.
* cpukit: deprecate task variables. closes #2293.Gedare Bloom2015-03-102-4/+12
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* cpukit: deprecate rtems_clock_get(). closes #2294.Gedare Bloom2015-03-101-1/+4
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* cpukit: deprecate notepadsGedare Bloom2015-03-101-3/+9
| | | | | | | | | | | | | | | Deprecate Classic API Notepads. Mark task_set/get_note() with the deprecated attribute, and also mark the notepads field. Replace disable with enable option for notepads in confdefs.h, and make notepads disabled by default. The previous option CONFIGURE_DISABLE_CLASSIC_API_NOTEPADS is now unused and will emit a compile-time warning. A new option CONFIGURE_ENABLE_CLASSIC_API_NOTEPADS is available to turn on notepads, but it also will emit a compile-time warning to indicate that notepads are deprecated. Closes #2265
* Fix more Doxygen typosJoel Sherrill2015-03-061-1/+1
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* Fix a number of minor Doxygen formatting issuesJoel Sherrill2015-03-062-5/+5
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* score: Implement fine-grained locking for eventsSebastian Huber2015-03-0512-221/+205
| | | | | | | Use the ISR lock of the thread object to protect the event state and use the Giant lock only for the blocking operations. Update #2273.
* score: Simplify and fix signal deliverySebastian Huber2015-03-051-1/+0
| | | | | | | Deliver the POSIX signals after the thread state was updated to avoid race-conditions on SMP configurations. Update #2273.
* score: Update _Thread_Heir only if necessarySebastian Huber2015-03-051-35/+15
| | | | | | | | | | | | | | | | | | | | Previously, the _Thread_Heir was updated unconditionally in case a new heir was determined. The _Thread_Dispatch_necessary was only updated in case the executing thread was preemptible or an internal thread was unblocked. Change this to update the _Thread_Heir and _Thread_Dispatch_necessary only in case the currently selected heir thread is preemptible or a dispatch is forced. Move the schedule decision into the change priority operation and use the schedule operation only in rtems_task_mode() in case preemption is enabled or an ASR dispatch is necessary. This is a behaviour change. Previously, the RTEMS_NO_PREEMPT also prevented signal delivery in certain cases (not always). Now, signal delivery is no longer influenced by RTEMS_NO_PREEMPT. Since the currently selected heir thread is used to determine if a new heir is chosen, non-preemptible heir threads currently not executing now prevent a new heir. This may have an application impact, see change test tm04. Document this change in sp04. Update #2273.
* score: Add and use PRIORITY_PSEUDO_ISRSebastian Huber2015-03-051-1/+1
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* score: C/C++ compatibility macros for ISR locksSebastian Huber2015-03-051-0/+45
| | | | Update #2273.
* libnetworking: Fix close of active socketsSebastian Huber2015-01-201-0/+5
| | | | | | | Send a special event to notify tasks waiting for a socket state change in case this socket gets closed. This prevents a use after free. Close #785.
* rtems: Add rtems_cache_coherent_allocate()Sebastian Huber2014-11-271-0/+61
| | | | Add rtems_cache_coherent_free() and rtems_cache_coherent_add_area().
* score: Rework global constructionSebastian Huber2014-10-131-1/+12
| | | | | | Ensure that the global construction is performed in the context of the first initialization thread. On SMP this was not guaranteed in the previous implementation.
* rtems: SMP fix for timer serverSebastian Huber2014-08-271-1/+3
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* rtems: Add more clock tick functionsSebastian Huber2014-08-261-0/+71
| | | | | Add rtems_clock_tick_later(), rtems_clock_tick_later_usec() and rtems_clock_tick_before().
* rtems: Inline rtems_clock_get_ticks_since_boot()Sebastian Huber2014-08-253-39/+7
| | | | Update documentation.
* score: Add SMP support to the cache managerDaniel Cederman2014-08-221-0/+82
| | | | | | | | | Adds functions that allows the user to specify which cores that should perform the cache operation. SMP messages are sent to all the specified cores and the caller waits until all cores have acknowledged that they have flushed their cache. If CPU_CACHE_NO_INSTRUCTION_CACHE_SNOOPING is defined the instruction cache invalidation function will perform the operation on all cores using the previous method.
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