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Rev Age Author Path Log message Diff
2185 6245 d 7 h decky /trunk/ rename ipcc to tester  
2184 6245 d 9 h decky /trunk/kernel/generic/src/lib/ add zetta (sextillion) prefix
make constants explicitly unsigned		  
2183 6246 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.		  
2182 6246 d 20 h jancik /branches/arm/kernel/arch/arm32/ Alf: Paging ... not tested  
2181 6247 d 23 h konopa /branches/fs/kernel/doc/ New author added  
2180 6248 d 1 h stepan /branches/arm/kernel/arch/arm32/include/ exception vector locations added  
2179 6248 d 1 h stepan /branches/arm/kernel/arch/arm32/ exception handlers installation & initialization routines  
2178 6248 d 6 h kebrt /branches/arm/kernel/arch/arm32/include/ istate structure added  
2177 6248 d 9 h stepan /branches/arm/kernel/arch/arm32/src/ arch/regutils.h changes reflected  
2176 6248 d 9 h stepan /branches/arm/kernel/arch/arm32/include/ status registers manipulation macros  
2175 6248 d 23 h jancik /branches/arm/kernel/arch/arm32/ Alf: Disable ASID support  
2174 6250 d 3 h kebrt /branches/arm/kernel/arch/arm32/include/ atomic_add added  
2173 6250 d 10 h kebrt /branches/arm/kernel/arch/arm32/ console added, does not work yet  
2172 6250 d 10 h kebrt /branches/arm/kernel/arch/arm32/src/ memcpy added  
2171 6250 d 10 h kebrt /branches/arm/kernel/arch/arm32/ memcpy added  
2170 6250 d 21 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.		  
2169 6250 d 22 h kebrt /branches/arm/kernel/arch/arm32/src/ debug print added  
2168 6250 d 22 h kebrt /branches/arm/kernel/arch/arm32/ context save/restore added  
2167 6250 d 22 h kebrt /branches/arm/kernel/arch/arm32/src/ debugging printf added  
2166 6250 d 22 h kebrt /branches/arm/kernel/arch/arm32/include/ context added  

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