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Rev Age Author Path Log message Diff
4343 5557 d 17 h svoboda /branches/dynload/ Merged trunk changes up to r3925 to dynload.  
4339 5557 d 19 h svoboda /branches/dynload/ Merge trunk changes up to r3802 to dynload.  
4337 5557 d 19 h svoboda /branches/dynload/ Merge changes in trunk up to r3741 to dynload.  
3448 5781 d 5 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3403 5785 d 4 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3191 5861 d 1 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3156 5874 d 21 h svoboda /branches/dynload/kernel/generic/src/mm/ Separate page removal and insertion in as_area_change_flags() so that usage of old and new mapping cannot interleave.  
3153 5875 d 1 h svoboda /branches/dynload/ Merge latest trunk changes into dynload  
3149 5875 d 1 h svoboda /branches/dynload/ Merge trunk changes up to r3071 into dynload (broken)  
3129 5879 d 19 h svoboda /branches/dynload/ initial ia64 support in iloader (broken)  
2986 5899 d 23 h svoboda /branches/dynload/kernel/generic/src/mm/ Declare old_frame as uintptr_t instead of int  
2985 5900 d 0 h svoboda /branches/dynload/ Fix as_area_change_flags() and use it in elf_loader.c  
2984 5900 d 1 h svoboda /branches/dynload/ Add as_area_change_flags() syscall and libc wrapper. Implementation limited to non-shared areas of anonymous memory.  
2927 5907 d 5 h decky /branches/dynload/ added dynload branch  
2745 5985 d 3 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2647 6057 d 20 h jermar /trunk/kernel/generic/src/mm/ Fix a bug in anonymous address space area sharing. Call the backend's share
function only if the source area is not already shared. Otherwise increment the
sh_info refcount. Without this fix, the kernel will try to recreate the pagemap
if three and more address space areas attempt to share the same data.		  
2556 6136 d 4 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2183 6312 d 22 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 6317 d 16 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.		  
2141 6321 d 15 h jermar /trunk/ The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.

Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache.		  

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