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Rev Age Author Path Log message Diff
4296 6091 d 1 h trochtova /branches/dd/ dd branch synchronized with trunk (revision 4295)  
4055 6130 d 6 h trochtova /branches/dd/ changes in trunk (rev 4054) merged into dd branch  
3022 6413 d 8 h decky /branches/dd/ device drivers branch  
2745 6505 d 7 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2626 6599 d 9 h jermar /trunk/kernel/generic/ Support for 5 payload arguments for IPC irq notifications and the pseudo code.  
2471 6759 d 23 h jermar /trunk/ Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-)
 
2183 6833 d 3 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 6899 d 1 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2071 6910 d 22 h jermar /trunk/ (c) versus (C)  
2064 6924 d 21 h vana /trunk/ SIMICS added as a simulator kernel runs on  
1933 7002 d 21 h jermar /trunk/kernel/generic/ Implement efficient IPC notification cleanup.  
1932 7002 d 22 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 7003 d 22 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 7042 d 23 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 7101 d 0 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 7108 d 1 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 7122 d 6 h jermar /kernel/trunk/ Cleanup of comments.  
1702 7129 d 4 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1698 7129 d 23 h jermar /kernel/trunk/generic/src/ipc/ Improve comments.
Replace 'process' with 'task'.
 
1693 7131 d 2 h palkovsky /kernel/trunk/generic/ Modified ipc/irq to be able to pass up to 3 arguments to userspace.  
1628 7135 d 19 h decky /kernel/trunk/ fixes  
1625 7135 d 20 h decky /kernel/trunk/ ppc32 uspace keyboard support  
1595 7136 d 11 h palkovsky /kernel/trunk/ Added kernel circular buffer klog.
Added automatic killing of tasks raising inappropriate exceptions.
TODO: Fix vsnprintf return value(and behaviour according to specs) and remove workaround in klog.
 
1591 7136 d 20 h palkovsky /kernel/trunk/generic/ Small updates to ipc.  
1573 7138 d 1 h palkovsky /kernel/trunk/generic/ Renamed some things in IPC to be consistent.
Added ipc reporting to kconsole.
 
1507 7140 d 5 h vana /kernel/trunk/ IA64 uspace keyboard kernel part  
1288 7168 d 7 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.
 
1284 7170 d 10 h palkovsky /kernel/trunk/generic/ Added commands for accessing ia32 portspace in irq top-half.  
1281 7170 d 21 h palkovsky /kernel/trunk/ Added means to make a simple action upon interrupt.