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2183 6276 d 7 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.		  
2118 6335 d 8 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2109 6336 d 11 h jermar /trunk/kernel/generic/ Revert thread_interrupt_sleep() to waitq_interrupt_sleep().
I'd prefer that this, IMO, waitq related stuff stays together.		  
2089 6343 d 10 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2087 6344 d 6 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6354 d 3 h jermar /trunk/ (c) versus (C)  
2050 6383 d 13 h decky /trunk/kernel/ benchmarking with statistics (initial)  
2048 6386 d 4 h jermar /trunk/ Formatting and indentation changes.  
2042 6388 d 6 h decky /trunk/kernel/ introduce uncounted threads, whose accounting doesn't affect accumulated task accounting
run tests in kconsole thread again		  
2041 6388 d 8 h decky /trunk/kernel/generic/src/proc/ revert 2040  
2040 6388 d 10 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2039 6388 d 11 h decky /trunk/kernel/generic/ accumulate task accounting, run tests as separate kernel task  
2035 6389 d 8 h decky /trunk/kernel/generic/src/ more fancy kconsole output  
2000 6404 d 12 h decky /trunk/kernel/ move files to more proper locations  
1880 6483 d 2 h jermar /trunk/ Small improvements here and there.  
1864 6490 d 0 h jermar /trunk/ sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64.		  
1839 6519 d 7 h decky /trunk/kernel/generic/ finish security context isolation  
1820 6527 d 0 h decky /trunk/kernel/generic/ initial security context support  
1787 6544 d 5 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6551 d 6 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1757 6565 d 11 h jermar /kernel/trunk/ Cleanup of comments.  
1735 6567 d 12 h decky /kernel/trunk/ make kernel prints case consistent  
1702 6572 d 9 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1687 6575 d 10 h jermar /kernel/trunk/generic/src/proc/ Fix double thread_join() in ktaskgc.
In thread_create(), lock TASK with interrupts disabled again.
thread_join_timeout() can use ordinary waitq_sleep_timeout().		  
1684 6575 d 13 h jermar /kernel/trunk/ #ifdef more debugging printf()'s.  
1676 6576 d 10 h jermar /kernel/trunk/generic/src/proc/ Forgotten interrupts_restore().  
1661 6577 d 14 h jermar /kernel/trunk/generic/ Collect Undead threads while waiting to join uinit.
Rename ktaskkill to ktaskgc.		  
1636 6578 d 23 h jermar /kernel/trunk/ Move comment.

Do TLB shootdown also when allocating new ASID.		  
1600 6579 d 14 h jermar /kernel/trunk/generic/src/proc/ Prevent task killing of kernel by returning EPERM on such a request.  
1597 6579 d 15 h palkovsky /kernel/trunk/ Added possibility to interrupt task at exit from interrupt routine.  
1589 6580 d 5 h jermar /kernel/trunk/generic/src/ Improve comments regarding liveliness of threads and tasks.  
1588 6580 d 5 h jermar /kernel/trunk/generic/src/ In task_kill(), remove the task from the tasks_btree before proceeding.
Thus, when the kernel finds the task in the tasks_btree and locks it before
releasing tasks_lock, it is guaranteed that the task will not be destroyed
until the lock is held. If the kernel needs to unlock the task, do some operation
and lock it again, it should increase its refcount before doing so. In that case,
when releasing the lock, it must decrement the refcount and if it reaches
zero, it must call task_destroy().		  
1587 6580 d 6 h jermar /kernel/trunk/ task_destroy() implementation, fixes in as_destroy() and task_kill().
This is the first version of HelenOS that would perform complete cleanup leading from thread to destruction of address space.		  
1585 6580 d 9 h jermar /kernel/trunk/generic/ Kill task when its main thread exits.  
1583 6580 d 12 h jermar /kernel/trunk/generic/ Make ktaskclnp call ipc_cleanup and futex_cleanup.  
1580 6580 d 15 h jermar /kernel/trunk/generic/src/ Update for task_kill().  
1579 6581 d 1 h jermar /kernel/trunk/generic/ Framework for task_kill().
Some pieces (e.g. implementation of ktask_cleanup() kernel thread and
task_destroy() function) are missing.
Changed locking order for task lock, threads_lock and thread lock from
threads_lock, thread lock, task lock to task lock, threads_lock, thread lock.		  
1573 6581 d 6 h palkovsky /kernel/trunk/generic/ Renamed some things in IPC to be consistent.
Added ipc reporting to kconsole.		  
1468 6585 d 7 h jermar /kernel/trunk/ Function for destroying address space for which there is no other reference in the kernel.  
1460 6585 d 11 h jermar /kernel/trunk/generic/ Reference counting for futexes.