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2217 6293 d 13 h jermar /trunk/kernel/arch/ia32/src/smp/ On SMP amd64 and ia32 systems, release the irq->lock
before calling clock() from the interrupt handler.
This is important for maintaining kernel preemption
since no preemption can take place while a spinlock
is held.		  
2216 6293 d 15 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls		  
2211 6293 d 17 h decky /trunk/kernel/generic/src/synch/ reflect the renaming of printflock to printf_lock  
2210 6293 d 17 h decky /trunk/ use more useful values  
2209 6293 d 17 h decky /trunk/uspace/ use futex instead of pthread serialization
synchronize only output to stdout
cleanup		  
2208 6293 d 17 h decky /trunk/kernel/generic/ use spinlock only on console output, not other print functions
cleanup		  
2193 6294 d 20 h decky /trunk/uspace/tester/ reimplement all tests from original ipcc
(cleanup needed)		  
2192 6294 d 21 h decky /trunk/uspace/libc/arch/sparc64/include/ fix uspace atomic_add according kernel code  
2188 6294 d 21 h decky /trunk/ new user space testing framework (unfinished)  
2187 6294 d 22 h decky /trunk/kernel/generic/ add syscall for getting current thread ID  
2186 6294 d 23 h decky /trunk/uspace/tester/ rename ipcc.c to tester.c  
2185 6294 d 23 h decky /trunk/ rename ipcc to tester  
2184 6295 d 1 h decky /trunk/kernel/generic/src/lib/ add zetta (sextillion) prefix
make constants explicitly unsigned		  
2183 6295 d 19 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.		  
2170 6300 d 13 h jermar /trunk/kernel/ Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.

Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary.		  
2161 6302 d 16 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB bug during TSB refill.
When one wants to enable a TSB entry, he or she should set the
entry invalid bit to false, as opposed to setting it to true.		  
2160 6302 d 16 h decky /trunk/boot/arch/ remove duplicate dependency  
2144 6303 d 13 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6303 d 19 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2142 6303 d 20 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  

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