Commits · 88ad0721093e9305787741d0e62deabd92a413be · xenomai / xenomai4 / linux-evl

05 Jun, 2021 40 commits
- evl/wait: strip out useless includes · 88ad0721
  Philippe Gerum authored Feb 11, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  88ad0721
- evl/thread: drop evl_start_thread() from the kernel API · 8d9d833f
  Philippe Gerum authored Feb 11, 2019
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EVL threads start running immediately after creation, there is no need
for an intermediate stopped state.

Let's open code the few bits required to set up the scheduling state
of an emerging user/kernel thread instead, and get rid of this Cobalt
legacy.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  8d9d833f
- evl/wait: remove superfluous checks for list emptiness · 39fc68c4
  Philippe Gerum authored Feb 11, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  39fc68c4
- evl/monitor: remove superfluous checks for list emptiness · d851aed2
  Philippe Gerum authored Feb 11, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  d851aed2
- evl/clock: remove superfluous checks for list emptiness · 7ecb0eec
  Philippe Gerum authored Feb 11, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  7ecb0eec
- evl/factory: use evl_release_element() for consistency · cc108809
  Philippe Gerum authored Feb 10, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  cc108809
- evl/thread: convert to evl_drop_poll_table() · 176bee43
  Philippe Gerum authored Feb 10, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  176bee43
- evl/poller: fix, finalize synchronous multipexing support on efds · 2a9c2a1e
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  2a9c2a1e
- evl/flag: switch to broadcast semantics · aa1bfe56
  Philippe Gerum authored Feb 10, 2019
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All waiters are unblocked upon signaling.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  aa1bfe56
- evl/monitor: add tryenter_gate() service · e31826cc
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  e31826cc
- evl/monitor: signal: send ESRCH if target is not found · 4ae567ce
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  4ae567ce
- evl/monitor: enter: fix timeout status · 2a8eb54c
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  2a8eb54c
- evl/factory: send ENXIO if core is unavailable · 24c0c5fe
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  24c0c5fe
- evl/thread: do not force convert SCHED_WEAK,0 to SCHED_NORMAL · db26217a
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  db26217a
- evl/mutex: fix ceiling reference in PP init · d10d908d
  Philippe Gerum authored Feb 09, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  d10d908d
- evl/clock: add missing fops to builtin clocks · 3ec01504
  Philippe Gerum authored Feb 08, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  3ec01504
- evl: rename sfilp to efilp · 7038e6e3
  Philippe Gerum authored Feb 08, 2019
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For consistency with the base type being referred to (struct
evl_file).
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  7038e6e3
- evl/clock: convert to common naming for sleep calls · dd705a82
  Philippe Gerum authored Feb 08, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  dd705a82
- evl/thread: add service to return state information · c6a5f14b
  Philippe Gerum authored Feb 07, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  c6a5f14b
- evl/thread: move mode setting to control device · 5a434d64
  Philippe Gerum authored Feb 07, 2019
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Runtime mode setting is a self-applicable operation, and as such must
go through the control device where evl_current() implicitly applies.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  5a434d64
- evl/sched: drop mapping of SCHED_FIFO,-prio to SCHED_WEAK,prio · e1884622
  Philippe Gerum authored Feb 07, 2019
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Such mapping has no particular upside, drop it for consistency and
simplicity.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  e1884622
- evl/sem: switch to implicit single increment/decrement ops · 92904b9d
  Philippe Gerum authored Feb 07, 2019
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Significant optimizations can happen only when acquire/release ops
involve single increment/decrement.

Although we loose the ability to implement read/write locking, we can
still do that using a monitor protecting an access map. So let's make
the semaphore code fast and right for the most common usage.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  92904b9d
- evl/sem: general fix of release operation · 63337db7
  Philippe Gerum authored Feb 06, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  63337db7
- evl/sem: remove broadcast operation · 9daccd65
  Philippe Gerum authored Feb 06, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  9daccd65
- evl/monitor: add timeout to gate lock operation · 29966901
  Philippe Gerum authored Feb 06, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  29966901
- evl/clock: map static clock ids to descriptors · 6603f49e
  Philippe Gerum authored Feb 06, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  6603f49e
- evl/mutex: check consistency of lock/unlock requests · 16f7ccb5
  Philippe Gerum authored Feb 05, 2019
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Detect invalid requests such as recursive locking and unlocking of
free mutex early.

This is prep work before we can drop the nklock entirely, which is
recursive by design and would somewhat prevent a kernel lockup upon
invalid request. Once we switch to using per-wchan hard spinlocks, we
don't want to risk recursive (spin)locking attempts when traversing a
PI chain.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  16f7ccb5
- evl/thread: remove more recursively (nk)locked paths · 2e0aae8f
  Philippe Gerum authored Feb 05, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  2e0aae8f
- evl/thread: delegate state bits test-and-clear to evl_wakeup_thread() · a18e38ae
  Philippe Gerum authored Feb 05, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  a18e38ae
- evl/thread: hide info bits update into evl_release_thread() · 74d18a50
  Philippe Gerum authored Feb 05, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  74d18a50
- evl/thread: unblock T_WAIT sleep condition too · 42f504b3
  Philippe Gerum authored Feb 05, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  42f504b3
- evl/wait: remove more recursively (nk)locked paths · e67c71d8
  Philippe Gerum authored Feb 04, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  e67c71d8
- evl/thread: hide info bits update into evl_wakeup_thread() · 19070b87
  Philippe Gerum authored Feb 04, 2019
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Let's benefit from the atomic access to the thread info bits
evl_wakeup_thread() already guarantees.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  19070b87
- evl/timer: sort out deadlock issues in bolting · b8c9ad14
  Philippe Gerum authored Feb 03, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  b8c9ad14
- evl/monitor: reduce the scope of nklocked sections · dddc82ab
  Philippe Gerum authored Feb 03, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  dddc82ab
- evl/sched: drop yield to inband mechanism · 0d74bde4
  Philippe Gerum authored Feb 03, 2019
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Yielding to inband allowed a thread running in OOB context to yield
the CPU to a thread of same/higher priority stuck in-band. This was
basically a Cobalt hack working around dual-kernel specifics for
emulating POSIX's sched_yield().

This is of no use to EVL.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
```
  0d74bde4
- evl/timerfd: convert to evl_wait_event_timeout() · baa0975a
  Philippe Gerum authored Feb 03, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  baa0975a
- evl/ksem: convert to evl_wait_event_timeout() · ac37c5c1
  Philippe Gerum authored Feb 03, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  ac37c5c1
- evl/poller: convert to evl_wait_event_timeout() · 45131041
  Philippe Gerum authored Feb 03, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  45131041
- evl/flag: convert to evl_wait_event_timeout() · b702c132
  Philippe Gerum authored Feb 03, 2019
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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
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  b702c132