| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 3186 |
5875 d 20 h |
jermar |
/trunk/kernel/ |
Support for active mutexes. Active mutexes implement busy waiting, pretty much
in the same way as spinlocks, but can be passed to condition variables, which is
the motivation for this enhancement. |
|
| 3059 |
5896 d 0 h |
decky |
/trunk/kernel/generic/src/ |
proper printf formatting |
|
| 2916 |
5917 d 20 h |
jermar |
/trunk/kernel/generic/src/ |
More formatting changes. |
|
| 2914 |
5917 d 20 h |
jermar |
/trunk/kernel/generic/src/synch/ |
Formatting improvements. |
|
| 2909 |
5917 d 23 h |
jermar |
/trunk/kernel/generic/src/synch/ |
timeouted vs. timed out |
|
| 2745 |
5993 d 3 h |
decky |
/trunk/ |
code cleanup (mostly signed/unsigned)
allow extra compiler warnings |
|
| 2310 |
6288 d 20 h |
jermar |
/trunk/kernel/generic/ |
Cleanup the waitq_wakeup() interface.
Replace numeric constants (i.e. 0)
and boolean constants (i.e. false) with
more readable WAKEUP_FIRST. Also change the
type of the second argument of waitq_wakeup()
to a newly introduced type wakeup_mode_t.
Fix behaviour of waitq_wakeup() in case
that WAKEUP_ALL semantics is required
but no threads are sleeping in the wait
queue. This is a similar fix to that of
Jan Hudecek committed in the RCU branch,
but, IMHO, is more straightforward and
also doesn't eat up previous missed
wakeups. |
|
| 2211 |
6318 d 21 h |
decky |
/trunk/kernel/generic/src/synch/ |
reflect the renaming of printflock to printf_lock |
|
| 2183 |
6320 d 23 h |
jermar |
/trunk/kernel/generic/ |
Continue to de-oversynchronize the kernel.
- replace as->refcount with an atomic counter; accesses to this
reference counter are not to be done when the as->lock mutex is held;
this gets us rid of mutex_lock_active();
Remove the possibility of a deadlock between TLB shootdown and asidlock.
- get rid of mutex_lock_active() on as->lock
- when locking the asidlock spinlock, always do it conditionally and with
preemption disabled; in the unsuccessful case, enable interrupts and try again
- there should be no deadlock between TLB shootdown and the as->lock mutexes
- PLEASE REVIEW !!!
Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops. |
|
| 2109 |
6381 d 3 h |
jermar |
/trunk/kernel/generic/ |
Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together. |
|
| 2089 |
6388 d 2 h |
decky |
/trunk/ |
huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes |
|
| 2087 |
6388 d 22 h |
jermar |
/trunk/kernel/ |
Indentaion and formatting changes even Martin will like :-) |
|
| 2071 |
6398 d 19 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 2067 |
6409 d 0 h |
jermar |
/trunk/kernel/ |
More formatting changes. |
|
| 1888 |
6523 d 22 h |
jermar |
/trunk/ |
C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64. |
|
| 1787 |
6588 d 21 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6595 d 22 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1757 |
6610 d 3 h |
jermar |
/kernel/trunk/ |
Cleanup of comments. |
|
| 1705 |
6616 d 4 h |
cejka |
/kernel/trunk/ |
Added file with modules definitions and descriptions.
We are able to change modules order and their description in one place. |
|
| 1702 |
6617 d 1 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1681 |
6620 d 15 h |
jermar |
/kernel/trunk/generic/src/synch/ |
Avoid tricky race condition between waitq_wakeup() and the pair
of waitq_timeouted_sleep() and waitq_interrupt_sleep().
Mutual exclusion != Synchronization. |
|
| 1667 |
6621 d 23 h |
jermar |
/kernel/trunk/ |
Print spurious interrupt messages only when compiled with CONFIG_DEBUG.
Print warning about looping spinlock only after 100000000 unsuccessfull attempts to gain the spinlock. |
|
| 1593 |
6624 d 15 h |
jermar |
/kernel/trunk/generic/src/synch/ |
When interrupted from sleep, pending timeouts must be unregistered. |
|
| 1586 |
6625 d 1 h |
jermar |
/kernel/trunk/generic/src/synch/ |
futex_cleanup() implementation. |
|
| 1583 |
6625 d 4 h |
jermar |
/kernel/trunk/generic/ |
Make ktaskclnp call ipc_cleanup and futex_cleanup. |
|
| 1580 |
6625 d 7 h |
jermar |
/kernel/trunk/generic/src/ |
Update for task_kill(). |
|
| 1579 |
6625 d 17 h |
jermar |
/kernel/trunk/generic/ |
Framework for task_kill().
Some pieces (e.g. implementation of ktask_cleanup() kernel thread and
task_destroy() function) are missing.
Changed locking order for task lock, threads_lock and thread lock from
threads_lock, thread lock, task lock to task lock, threads_lock, thread lock. |
|
| 1502 |
6628 d 3 h |
jermar |
/kernel/trunk/ |
Replace nonblocking argument of waitq_sleep_timeout with flags that specify mode of operation.
Now a flag can be used to specify interruptible sleep.
Modify waitq_interrupt_sleep() to only interrupt threads that used this flag.
O |
|
| 1467 |
6629 d 23 h |
jermar |
/kernel/trunk/generic/src/synch/ |
Allow usage of blocking synchronization primitives in functions that are also called during system initialization. |
|
| 1460 |
6630 d 3 h |
jermar |
/kernel/trunk/generic/ |
Reference counting for futexes. |
|
| 1416 |
6636 d 5 h |
jermar |
/kernel/trunk/generic/ |
Make implementation of condition variables compliant with their definition.
Signal operation must become a no-op if there is no thread in the wait operation.
Remove condvar_trywait() which has no meaning after this change. |
|
| 1414 |
6636 d 6 h |
jermar |
/kernel/trunk/generic/src/synch/ |
Small fixes in futex.c.
PTE_GET_FRAME() returns frame address, not PFN.
Update comments. |
|
| 1375 |
6642 d 3 h |
jermar |
/kernel/trunk/generic/ |
Fix race in condition variables. |
|
| 1323 |
6647 d 6 h |
jermar |
/kernel/trunk/ |
Increase "timeout" for debugging spinlock so that false positive
deadlock reports are suppressed on real hardware.
Also add one HT configuration to hardware compatibility list. |
|
| 1313 |
6648 d 2 h |
jermar |
/kernel/trunk/ |
Do not report possible deadlock on fb_lock.
This issue was causing troubles in connection
with slow framebuffer in simulated environment
when false positives triggered an infinite
recursion of attempts to report deadlock on
fb_lock using printf() and fb_putchar(). |
|
| 1288 |
6656 d 3 h |
jermar |
/kernel/trunk/ |
Complete implementation of copy_from_uspace() and copy_to_uspace()
for amd64 and ia32. Other architectures still compile and run,
but need to implement their own assembly-only memcpy(), memcpy_from_uspace(),
memcpy_to_uspace() and their failover parts. For these architectures
only dummy implementations are provided. |
|
| 1264 |
6660 d 3 h |
jermar |
/kernel/trunk/generic/ |
Improve Doxygen-comments. |
|
| 1248 |
6663 d 22 h |
jermar |
/kernel/trunk/ |
Add some @file doxygen comments and improve already existing comments. |
|
| 1229 |
6667 d 2 h |
jermar |
/kernel/trunk/ |
Remove the outdated TODO file.
Improve doxygen comments here and there. |
|
| 1224 |
6668 d 1 h |
cejka |
/kernel/trunk/ |
Fix pointers output format.
Fix format of slab and zones tables. |
|