litmus-rt.git/include, branch gpusync/staging The LITMUS^RT kernel. Rename IKGLP R2DGLP. 2013-11-09T19:51:15+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-09T19:51:15+00:00 17719085c3b04c58389d96d7e8140d18fa3caf3d The I-KGLP was a pre-publish name for the R^2DGLP locking protocol developed by B. Ward et al. ("Replica-Request Priority Donation: A Real-Time Progress Mechanism for Global Locking Protocols" presented at RTCSA 2012). This patch renames ikglp-named identifiers to r2dglp-named identifiers. 
The I-KGLP was a pre-publish name for the R^2DGLP locking protocol
developed by B. Ward et al. ("Replica-Request Priority Donation:
A Real-Time Progress Mechanism for Global Locking Protocols"
presented at RTCSA 2012). This patch renames ikglp-named identifiers
to r2dglp-named identifiers.
GPUSync integration into C-EDF. 2013-11-08T20:01:53+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-08T20:01:53+00:00 45bab24ea53f6c3f788f1b670adc1682490acfe3 The changes to C-EDF to support GPUSync are numerous and interdependent. Unfortunatly, things are a bit too complex (given time constraints) to break GPUSync integration into C-EDF into smaller parts. This patch is just a dump of prior development in one big chunk. Changes include: 1) Support for three different budget tracking/enforcement policies 2) Nested priority inheritance 3) Support for klmirqd 4) Support for auxiliary tasks 5) Several locking protocols: FIFO, PRIOQ, IKGLP, and KFMLP 6) GPU-to-CPU-cluster mapping 
The changes to C-EDF to support GPUSync are numerous and
interdependent. Unfortunatly, things are a bit too complex
(given time constraints) to break GPUSync integration
into C-EDF into smaller parts. This patch is just a dump
of prior development in one big chunk. Changes include:

1) Support for three different budget tracking/enforcement policies
2) Nested priority inheritance
3) Support for klmirqd
4) Support for auxiliary tasks
5) Several locking protocols: FIFO, PRIOQ, IKGLP, and KFMLP
6) GPU-to-CPU-cluster mapping
Add nvidia tasklet and workqueue tracing 2013-11-08T18:13:55+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-08T18:11:02+00:00 ddf9f0dda3d8053ff678a88c86dfe1900f42f9b3 This patch adds calls to trace tasklet/workqueue releases, begin-execution, and end-execution events. 
This patch adds calls to trace tasklet/workqueue
releases, begin-execution, and end-execution events.
Add backlog info to Litmus kshark task complete 2013-11-08T16:02:07+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-08T16:02:07+00:00 53bf919734fac05fe90338dfa5369b01619130e2 Adds job backlog information to Litmus's litmus_task_completion kernel shark trace event. 
Adds job backlog information to Litmus's litmus_task_completion
kernel shark trace event.
Add priority change events to litmus kshark trace 2013-11-08T16:00:05+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-08T16:00:05+00:00 14f0083995e842b2ba9e8b8492675fc3bf9d6722 Adds Litmus kernel shark trace event to record changes in task scheduling priority. 
Adds Litmus kernel shark trace event to record changes in
task scheduling priority.
Add I/O blocking info to kshark tracing 2013-11-08T15:58:08+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-08T15:58:08+00:00 efe037025842b2a238a9c0ecdb6444bf35a5e8d6 Extends Litmus's litmus_task_block kernel shark tracing event to include information about blocking for I/O (versus blocking for a Litmus lock). 
Extends Litmus's litmus_task_block kernel shark
tracing event to include information about blocking
for I/O (versus blocking for a Litmus lock).
Update/cleanup lockdep to support nested locks 2013-11-07T23:19:15+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-07T23:19:15+00:00 1a0b5b4ac092a1874ffcf6e3a861af2a59ad7d4a This patch modifies lockdep to support nested locking protocols--specifically allow keys allocated in dynamic memory. We need to allow spinlocks to be acquired in a nested fashion without triggering complaints from lockdep. This is needed to support chained/transitive priority inheritance. 
This patch modifies lockdep to support nested locking
protocols--specifically allow keys allocated in dynamic
memory. We need to allow spinlocks to be acquired in a
nested fashion without triggering complaints from
lockdep. This is needed to support chained/transitive
priority inheritance.
Minor: Add task period-related macros. 2013-11-07T16:59:15+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-07T16:59:15+00:00 26e7d7eb3353426e6b4e3ddf989eae59580416bc Add macros for period comparisons. Useful for implementing rate-monotonic schedulers. 
Add macros for period comparisons. Useful for
implementing rate-monotonic schedulers.
Support recursive ready queue locks. 2013-11-06T22:08:19+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-06T22:08:19+00:00 c9e59167efbc76fd568470840490eb6203f3dcce This patch allows (at compile-time) for schedulers to use recurive locks on the ready queue. Recursive locks are useful for implementing complicated budget enforcement policies where locking protocol priority inheritance is concerned. 
This patch allows (at compile-time) for schedulers to use
recurive locks on the ready queue. Recursive locks are useful
for implementing complicated budget enforcement policies where
locking protocol priority inheritance is concerned.
Fix compilation bug when GPUs and klmirqd are used 2013-11-06T21:30:21+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-11-06T21:30:21+00:00 68e340beb1de0d241bb2be5769820c1965084dff A few definitions were missing or misplaced. This patch puts them in the right places. 
A few definitions were missing or misplaced. This patch
puts them in the right places.