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* Change create_rt_task() to task rt_task parameter.Glenn Elliott2013-03-21
| | | | | | | This updates create_rt_task() to take an rt_task parameter instead of a number of task parameters. This probably should have been a part of patches recent patches that revised the sproadic_*() macros.
* Merge branch 'prop/rt_task-init-final' into tempGlenn Elliott2013-03-13
|\ | | | | | | | | | | | | | | | | | | Conflicts: bin/base_mt_task.c bin/rt_launch.c bin/rtspin.c include/litmus.h src/litmus.c src/task.c
| * Change convenience API routines.Glenn Elliott2013-03-12
| | | | | | | | | | | | | | | | | | | | | | | | | | The sproadic_*() macros have become unwieldy. This patch replaces those convenience macros for global, clustered, and partitioned scheduling. A part of this API change is the explicit use of nanosecond time-values. Prior APIs have used lt_t (litmus time), which had an implied time scale of nanoseconds. /bin apps and test suite also updated to use revised API. Modifications to the test suite are mostly centered around using nanoseconds instead of milliseconds.
| * Add init_rt_task_param().Glenn Elliott2013-03-12
| | | | | | | | | | Adds init_rt_task_param(). Facilitates setting up default real-time task attributes that cannot be set by memset(0).
| * Cluster-aware rtspin and rt_launch.Glenn Elliott2013-03-12
| | | | | | | | | | | | | | | | | | This patch adds cluster scheduling options to rtspin and rt_launch. The convenience routines in litmus.h were also updated to facilitate clustered scheduling. For partitioned scheduling, just set cluster_size = 1 (default size for rtspin and rt_launch).
| * Auto-CPU-affinity from part./cluster assignment.Glenn Elliott2013-03-12
| | | | | | | | | | | | | | | | | | | | | | This patch replaces be_migrate_to() with several be_migrate_*() APIs to automatically assign CPU affinity masks from a task's partition (or cluster) assignment. Routines are release-master-aware such that the release master (if one exists) will NOT be included in the task's affinity mask. (Note that release-master avoidance may be overridden by calling __be_migrate_thread_to_cluster().)
* | Merge branch 'gh/staging' into tempGlenn Elliott2013-03-13
|\| | | | | | | | | | | | | | | Conflicts: Makefile bin/rt_launch.c bin/rtspin.c src/task.c
| * Add basic locking support to rtspinBjoern Brandenburg2013-02-04
| | | | | | | | | | | | This is useful for testing locking protocol implementations (not intended for benchmarking!), and also serves to document how to use the LITMUS^RT locking API.
| * rt_launch: add support for -q <priority>Bjoern Brandenburg2013-01-11
| | | | | | | | This mirrors the option in rtspin.
| * Make release_ts a bit more userfriendlyBjoern Brandenburg2013-01-11
| | | | | | | | | | | | | | The -f option required manually *also* setting the -w option. This is no longer required. While at it, simplify the code by using the /proc interface.
* | Work with wip-2012.3-gpuGlenn Elliott2013-02-28
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* | support log injectionGlenn Elliott2013-01-27
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* | Merge branch 'mpi-master' into wip-2012.3-gpuGlenn Elliott2013-01-10
|\| | | | | | | | | | | | | | | Conflicts: Makefile bin/rtspin.c include/litmus.h src/litmus.c
| * Implement lt_sleep() syscall wrapperBjoern Brandenburg2012-08-14
| | | | | | | | | | Wrap nanosleep() to make sleeping for a given number of nanoseconds easier, using the LITMUS^RT time type lt_t.
| * Implement get_nr_ts_release_waiters() /proc wrapperBjoern Brandenburg2012-08-14
| | | | | | | | | | Add a wrapper for /proc/litmus/stats to make it easy to query the number of tasks already waiting for a task set release.
| * Add convenience wrappers for the DPCP and MPCPBjoern Brandenburg2012-08-14
| | | | | | | | For consistency reasons and to document the cpu parameter of the DPCP.
| * Make use of kernel-provided FP macrosBjoern Brandenburg2012-06-26
| | | | | | | | | | | | Use the kernel's notion of fixed priorities. Also, add some clarifying comments to the task setup wrappers.
| * P-FP: make PCP available to user spaceSven Dziadek2012-05-31
| | | | | | | | | | | | PCP was only used for DPCP before tests: add some basic tests for PCP under P-FP
| * P-FP: port P-FP plugin used in B. Brandenburg'sSven Dziadek2012-05-31
| | | | | | | | | | | | | | | | | | dissertation (branch bbb-diss) I took the unchanged code but removed references to OMLP which was and is not implemented tests: changed so that they work for P-FP
* | blargGlenn Elliott2013-01-09
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* | Merge branch 'wip-gpu-rtas12' into wip-slave-threadsGlenn Elliott2013-01-09
|\ \ | | | | | | | | | | | | | | | Conflicts: Makefile src/syscalls.c
| * | workingGlenn Elliott2012-09-11
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| * | Merge remote-tracking branch 'github/prop/litmus-signals' into wip-gpu-rtas12Glenn Elliott2012-09-10
| |\ \ | | | | | | | | | | | | | | | | Conflicts: Makefile
| | * | Added signal-related comments. Made g++ friendly.prop/litmus-signalsGlenn Elliott2012-09-07
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| | * | Updated sporadic_task() to take sig policy.Glenn Elliott2012-09-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Also changed the LITMUS_TRY/LITMUS_CATCH/END_LITMUS_TRY macros to use if/else-if chains instead of switch statements. This is because SIGRTMAX is a variable in libc and not a compile-time constant (switches cant be used).
| | * | Enable handling of Litmus signals.Glenn Elliott2012-09-07
| | |/ | | | | | | | | | | | | | | | | | | Add support for handling Litmus-specific signals. Includes framework try/catch-style handling of signals. SIG_BUDGET is the only Litmus signal at the moment.
| * | GPUSync RTSS12 liblitmuswip-gpu-rtss12Glenn Elliott2012-05-26
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| * | add rsm and ikglp supportGlenn Elliott2012-04-16
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* / aux thread support startGlenn Elliott2012-09-12
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* Switch to new np-section protocol.Bjoern B. Brandenburg2011-11-24
| | | | Everything is in one 32-bit word now.
* update headersBjoern B. Brandenburg2011-11-24
| | | | we need uint64_t in litmus.h
* switch to generic locking system callsBjoern B. Brandenburg2011-02-03
| | | | | The new generic lock layer in LITMUS^RT does away with per-protocol system calls. Change accordingly.
* Export wctime() and cputime() from rtspin to library clientsBjoern B. Brandenburg2011-02-03
| | | | | The timing functions are quite handy when building benchmark tasks. Avoid copy&paste reuse by making them available via the library.
* refactor: use architecture-specific includes for cycles.hBjoern B. Brandenburg2010-11-09
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* avoid including header files directlyBjoern B. Brandenburg2010-11-09
| | | | | | | | | | | | | | | The kernel warns against including header files directly. For good reason: our previous approach (just -I$KERNEL/include) caused all kinds of files to be included that should have come from /usr/include instead. This patch rewrites the Makfile so that the (few) needed headers are copied into the liblitmus src tree before compiling the library. This avoids having to specify the kernel include directories with -I, and also makes it easier to link against liblitmus (external applications do not need to know where the kernel is). Finally, this allows us to enable -Werror.
* Support budget enforcement policies. Allows tasks to specifyGlenn Elliott2010-05-20
| | | | | | | | how their execution budgets should be enforced: NO_ENFORCEMENT, QUANTUM_ENFORCEMENT, and PRECISE_ENFORCEMENT (unsupported). NOTE: Users of NO_ENFORCEMENT must call sleep_next_period() at the end of every job to signal to the kernel that its job is complete.
* Add get_control_page() library functionAndrea Bastoni2010-04-12
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* Remove prototype for non-existing system call.Bjoern B. Brandenburg2010-02-26
| | | | | This syscall hasn't been around since Fall 2007... The RTCSA'08 paper details how we are doing it now.
* Added protections to litmus.h to prevent name mangling when usedGlenn Elliott2010-02-22
| | | | in C++ code.
* Re-implement non-preemptive section support.Bjoern B. Brandenburg2010-02-03
| | | | Layered on top of the LITMUS control page.
* add sporadic_task_ns() helperBjoern B. Brandenburg2009-04-29
| | | | Allows for higher-precision setup of real-time tasks.
* add null_call() system callBjoern B. Brandenburg2009-03-02
| | | | For kernel entry/exit tracing.
* Add best effort task migration, so that we can support PSN-EDF.Bjoern B. Brandenburg2008-05-02
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* add convenience wrappersBjoern B. Brandenburg2008-05-01
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* API change: PI->FMLPBjoern B. Brandenburg2008-05-01
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* add unit conversionBjoern B. Brandenburg2008-02-19
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* adapt to new ABIBjoern B. Brandenburg2008-02-19
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* first changes to compile with LITMUS 20082008.0Bjoern B. Brandenburg2008-02-12
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* change to nanosecond resolution time accountingBjoern B. Brandenburg2008-02-04
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* many changesBjoern B. Brandenburg2008-02-03
| | | | | - use declarations from kernel - get rid of stuipd system call macros