Subversion Repositories HelenOS

Rev

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

Filtering Options

Rev Age Author Path Log message Diff
4296 6101 d 4 h trochtova /branches/dd/ dd branch synchronized with trunk (revision 4295)  
4055 6140 d 8 h trochtova /branches/dd/ changes in trunk (rev 4054) merged into dd branch  
3022 6423 d 10 h decky /branches/dd/ device drivers branch  
2745 6515 d 9 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2626 6609 d 11 h jermar /trunk/kernel/generic/ Support for 5 payload arguments for IPC irq notifications and the pseudo code.  
2471 6770 d 2 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)		  
2183 6843 d 5 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.		  
2098 6909 d 3 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2071 6921 d 1 h jermar /trunk/ (c) versus (C)  
2064 6935 d 0 h vana /trunk/ SIMICS added as a simulator kernel runs on  
1933 7013 d 0 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  
1932 7013 d 1 h jermar /trunk/kernel/ Do not copy notification config out of the IRQ structure.
Add the notify member, that toggles notifications on and off instead.
This is good for preventing other tasks from registering the notification
while the notification config is stored outside the IRQ structure.
It should also help to implement the cleanup code.		  
1923 7014 d 0 h jermar /trunk/ Replace the old IRQ dispatcher and IPC notifier with new implementation.
Note that all architectures except for sparc64 are now broken
and don't even compile.		  
1875 7053 d 1 h jermar /trunk/ sparc64 work.
- Changes to enable userspace keyboard drivers.
- Fix z8530 initialization (i.e. clear any pending Tx interrupts).
- Experimental support for framebuffers with inverted colors.		  
1787 7111 d 3 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 7118 d 4 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 7132 d 9 h jermar /kernel/trunk/ Cleanup of comments.  
1702 7139 d 7 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1698 7140 d 1 h jermar /kernel/trunk/generic/src/ipc/ Improve comments.
Replace 'process' with 'task'.		  
1693 7141 d 4 h palkovsky /kernel/trunk/generic/ Modified ipc/irq to be able to pass up to 3 arguments to userspace.  

←Prev12Next→

Show All