Subversion Repositories HelenOS

Rev

Show changed files | Details | Compare with Previous | Blame | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
4420 5698 d 20 h trochtova /branches/dd/ dd branch synchronized with trunk (revision 4419)  
4296 5733 d 16 h trochtova /branches/dd/ dd branch synchronized with trunk (revision 4295)  
4201 5748 d 22 h trochtova /branches/dd/ changes in trunk (rev 4200) merged into dd branch  
4055 5772 d 20 h trochtova /branches/dd/ changes in trunk (rev 4054) merged into dd branch  
3022 6055 d 22 h decky /branches/dd/ device drivers branch  
3020 6056 d 13 h jermar /trunk/kernel/generic/ Turn phone->lock into mutex.  
2802 6109 d 22 h jermar /trunk/kernel/generic/ Fix initialization of answerbox->task in ipc_answerbox_init.
Contributed by Jiri Svoboda.		  
2662 6213 d 12 h jermar /trunk/ Add support for IPC_M_DATA_READ calls.  
2637 6232 d 14 h cejka /trunk/ Extended IPC_M_CONNECT_TO_ME to use 3 user defined parameters.
Phone identifier is passed in ARG5.		  
2623 6242 d 19 h jermar /trunk/kernel/generic/ Introduce the IPC_FF_ROUTE_FROM_ME forwarding flag.  
2622 6242 d 19 h jermar /trunk/ Add mode argument to IPC forward.
This argument can be used to modify the way forward behaves.		  
2601 6255 d 16 h jermar /trunk/kernel/generic/src/ipc/ Fix and improve two IPC related comments.  
2494 6378 d 13 h jermar /trunk/kernel/generic/ Implement a new mechanism for copying data between two address spaces based on
IPC. New system method IPC_M_DATA_SEND is introduced. The implementation is
generic and does not make use of any possible architecture optimizations such as
direct copy from one address space to another.		  
2472 6402 d 14 h jermar /trunk/kernel/generic/src/ipc/ Some left-over stuff from the last commit (IPC cleanup and improved
comments.)		  
2471 6402 d 14 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)		  
2310 6443 d 15 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.		  
2216 6473 d 13 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls		  
2183 6475 d 17 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.		  
2071 6553 d 13 h jermar /trunk/ (c) versus (C)  
1933 6645 d 12 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  

←Prev12Next→

Show All