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Rev Age Author Path Log message Diff
4073 5730 d 4 h rimsky /branches/sparc/ Implemented input and output drivers for Niagara. Written in the old-fashion style (do not use the new DDI infrastructure nor the new keyboard driver). Anyway, tetris can be played.  
3862 5765 d 1 h rimsky /branches/sparc/kernel/ Changed the structure of header files, which have sun4u and sun4v versions. Implemented some sun4v TSB functions.  
3665 5829 d 1 h rimsky /branches/sparc/ Merged latest trunk changes into the sparc brach.  
3343 5934 d 7 h decky /branches/sparc/ add sparc branch  
2745 6108 d 12 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2626 6202 d 14 h jermar /trunk/kernel/generic/ Support for 5 payload arguments for IPC irq notifications and the pseudo code.  
2471 6363 d 4 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)		  
2183 6436 d 8 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 6502 d 6 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2071 6514 d 3 h jermar /trunk/ (c) versus (C)  
2064 6528 d 2 h vana /trunk/ SIMICS added as a simulator kernel runs on  
1933 6606 d 3 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  
1932 6606 d 3 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 6607 d 3 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 6646 d 4 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 6704 d 5 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6711 d 7 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 6725 d 11 h jermar /kernel/trunk/ Cleanup of comments.  
1702 6732 d 9 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1698 6733 d 4 h jermar /kernel/trunk/generic/src/ipc/ Improve comments.
Replace 'process' with 'task'.		  

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