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Rev Age Author Path Log message Diff
3624 5680 d 9 h svoboda /branches/tracing/kernel/ Move debbuging-related as functions to a separate module.  
3597 5682 d 23 h svoboda /branches/tracing/ Merge latest trunk changes into tracing.  
3596 5684 d 1 h svoboda /branches/tracing/kernel/generic/src/mm/ Update obsolete comment.  
3431 5748 d 0 h svoboda /branches/tracing/kernel/ Add configuration option CONFIG_UDEBUG to compile udebug in the kernel or not.  
3425 5748 d 11 h svoboda /branches/tracing/ Merge latest trunk changes into tracing (broken)  
3424 5748 d 23 h svoboda /branches/tracing/ Merge trunk changes up to r3180 into tracing  
3127 5845 d 23 h svoboda /branches/tracing/kernel/generic/src/ Fix rounding error in as_debug_write() - prevent panic when writing on page boundary  
3036 5855 d 4 h svoboda /branches/tracing/kernel/generic/ Make sure area written by debugger is private and anonymous by copying it, if necessary. (Not atomic atm)  
3013 5859 d 12 h svoboda /branches/tracing/kernel/generic/ Bypass area write-protection for udebug memory writes.  
3011 5860 d 23 h svoboda /branches/tracing/ Merged latest trunk changes to tracing  
2787 5921 d 5 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2745 5950 d 9 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings		  
2725 5971 d 7 h decky /trunk/kernel/ remove config.memory_size, get_memory_size() and memory_init.{c|d}
the amount of available memory can be calculated from the sizes of the zones
add FRAMES2SIZE, SIZE2KB and SIZE2MB functions/macros (code readability)		  
2712 5976 d 7 h decky /trunk/kernel/ prettyprint output  
2647 6023 d 2 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 6101 d 10 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2467 6209 d 3 h jermar /trunk/ Improve comments for arch-specific implementations of hierarchical
4-level page tables. Improve formatting.		  
2222 6275 d 0 h decky /trunk/kernel/ map kernel pages explicitly as writable (this solves compatibility issues with Intel Core 2)
make VESA framebuffer initialization more robust		  
2183 6278 d 5 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 6282 d 23 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.		  

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