Subversion Repositories HelenOS

Rev

Show changed files | Details | Compare with Previous | Blame | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
3343 5931 d 3 h decky /branches/sparc/ add sparc branch  
3240 5950 d 9 h decky / move unfinished ObjC support to a separate branch  
3222 5973 d 3 h svoboda /trunk/ Merge program-loader related stuff from dynload branch to trunk. (huge)  
2745 6105 d 8 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2556 6256 d 9 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2183 6433 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.		  
2170 6437 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.		  
2142 6441 d 4 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6485 d 21 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6486 d 0 h decky /trunk/ experimental support for Objective C
(disabled by default)		  
2107 6493 d 22 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 6494 d 6 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.		  
2094 6499 d 2 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6499 d 2 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6500 d 6 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes		  
2071 6510 d 23 h jermar /trunk/ (c) versus (C)  
2015 6549 d 23 h jermar /trunk/ Rework support for virtually indexed cache.
Instead of repeatedly flushing the data cache, which was a huge overkill, refuse to create an illegal address alias
in the kernel (again) and allocate appropriate page color in userspace instead. Extend the detection also to
SYS_PHYSMEM_MAP syscall.

Add support for tracking physical memory areas mappable by SYS_PHYSMEM_MAP.

Lots of coding style changes.		  
2009 6554 d 22 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2000 6561 d 8 h decky /trunk/kernel/ move files to more proper locations  
1914 6612 d 5 h jermar /trunk/kernel/generic/ Add function for printing out info about address space.  

←Prev12Next→

Show All