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Rev Age Author Path Log message Diff
2445 6207 d 12 h decky /trunk/ initial merge of branches/fs
(not finished, huge cleanup is needed)
 
2444 6208 d 3 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...
 
2441 6208 d 4 h decky /trunk/kernel/ fix ICC compilation  
2440 6208 d 5 h jermar /trunk/kernel/generic/ Fix the problem with sys_thread_create() by splitting the create and attach functionality of
thread_create(). Now it is possible to specify a flag that will cause thread_create() to only allocate and
initialize the thread structure. A call to thread_attach() will make the thread visible to the system.
This arrangement makes it easier to undo creation of a thread in case of a failure in sys_thread_create().
 
2310 6232 d 7 h jermar /trunk/kernel/generic/ Cleanup the waitq_wakeup() interface.
Replace numeric constants (i.e. 0)
and boolean constants (i.e. false) with
more readable WAKEUP_FIRST. Also change the
type of the second argument of waitq_wakeup()
to a newly introduced type wakeup_mode_t.

Fix behaviour of waitq_wakeup() in case
that WAKEUP_ALL semantics is required
but no threads are sleeping in the wait
queue. This is a similar fix to that of
Jan Hudecek committed in the RCU branch,
but, IMHO, is more straightforward and
also doesn't eat up previous missed
wakeups.
 
2275 6249 d 7 h decky /trunk/kernel/generic/ add fancy uptime kconsole command  
2268 6251 d 7 h jermar /trunk/kernel/generic/ Document and assert proper usage of THREAD_FLAG_WIRED.
Original patch by Jan Hudecek.
 
2227 6260 d 20 h decky /trunk/kernel/ start shutdown infrastructure  
2218 6262 d 3 h decky /trunk/kernel/ support the possibility to send EOI or Interrupt Acknowledgement
prior to processing the interrupt
(this is essential on some architectures to prevent preemption deadlock)
 
2216 6262 d 6 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2208 6262 d 8 h decky /trunk/kernel/generic/ use spinlock only on console output, not other print functions
cleanup
 
2187 6263 d 13 h decky /trunk/kernel/generic/ add syscall for getting current thread ID  
2183 6264 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 6269 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.
 
2142 6272 d 11 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2128 6316 d 7 h jermar /trunk/ Add arm32 architecture. The 32 suffix is used to specify that 16-bit Thumb
instructions are not used. The arm32 code is mostly composed of placeholders
that need to be replaced by real implementation. So far, the arm32 tree
only compiles. If run under GXEmul simulator, an infinit loop at the
kernel entry point will be entered.
 
2126 6317 d 3 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6317 d 6 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2124 6317 d 8 h decky /trunk/kernel/generic/ implement simple realloc()  
2122 6323 d 10 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2120 6323 d 11 h decky /trunk/kernel/generic/include/syscall/ specify syscall handler arguments  
2109 6324 d 14 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.
 
2107 6325 d 5 h jermar /trunk/ When clock() is called by an external interrupt dispatched by the IRQ dispatcher,
no spinlock can be held or the kernel will not be preemptive. This fixes Ticket #24.

Formating and indentation fixes.
 
2106 6325 d 13 h jermar /trunk/kernel/ Merge as_t structure into one and leave the differring parts in as_genarch_t.

Indentation and formatting changes in header files.
 
2105 6329 d 13 h decky /trunk/kernel/ move ipc structures to ipc.h  
2103 6330 d 6 h decky /trunk/kernel/generic/include/ move timeout_t to timeout.h
move other helper types to thread.h
 
2098 6330 d 8 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2096 6330 d 8 h decky /trunk/kernel/generic/include/ move thread_t to thread.h  
2094 6330 d 9 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6330 d 9 h decky /trunk/kernel/ spinlock extern declaration macro  
2092 6330 d 10 h decky /trunk/kernel/generic/include/ move cpu_t to cpu.h  
2090 6331 d 9 h decky /trunk/kernel/generic/include/proc/ cleanup garbage  
2089 6331 d 13 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2085 6337 d 11 h decky /trunk/kernel/ typedef elimination  
2083 6337 d 13 h decky /trunk/kernel/ typedef elimination  
2081 6337 d 13 h decky /trunk/kernel/generic/include/ another typedefs to anonymous structs  
2080 6337 d 13 h decky /trunk/kernel/generic/include/ another typedef to anonymous enum  
2079 6338 d 7 h decky /trunk/kernel/ remove some typedefs in favor of anonymous structures  
2071 6342 d 6 h jermar /trunk/ (c) versus (C)  
2059 6365 d 14 h jermar /trunk/kernel/generic/ Improve indentation and formatting.