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2217 6263 d 4 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 6263 d 7 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls		  
2211 6263 d 8 h decky /trunk/kernel/generic/src/synch/ reflect the renaming of printflock to printf_lock  
2210 6263 d 9 h decky /trunk/ use more useful values  
2209 6263 d 9 h decky /trunk/uspace/ use futex instead of pthread serialization
synchronize only output to stdout
cleanup		  
2208 6263 d 9 h decky /trunk/kernel/generic/ use spinlock only on console output, not other print functions
cleanup		  
2193 6264 d 12 h decky /trunk/uspace/tester/ reimplement all tests from original ipcc
(cleanup needed)		  
2192 6264 d 12 h decky /trunk/uspace/libc/arch/sparc64/include/ fix uspace atomic_add according kernel code  
2188 6264 d 13 h decky /trunk/ new user space testing framework (unfinished)  
2187 6264 d 14 h decky /trunk/kernel/generic/ add syscall for getting current thread ID  
2186 6264 d 14 h decky /trunk/uspace/tester/ rename ipcc.c to tester.c  
2185 6264 d 14 h decky /trunk/ rename ipcc to tester  
2184 6264 d 16 h decky /trunk/kernel/generic/src/lib/ add zetta (sextillion) prefix
make constants explicitly unsigned		  
2183 6265 d 10 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 6270 d 4 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 6272 d 7 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 6272 d 7 h decky /trunk/boot/arch/ remove duplicate dependency  
2144 6273 d 5 h jermar /trunk/kernel/arch/sparc64/src/mm/ Fix TSB size.  
2143 6273 d 11 h jermar /trunk/kernel/arch/sparc64/include/ Remove unneeded enum member.  
2142 6273 d 11 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  

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