Subversion Repositories HelenOS

Rev

Go to most recent revision | Show changed files | Directory listing | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
4377 5533 d 15 h svoboda /branches/tracing/ Merge latest trunk changes to tracing. (i.e. revs 3684:4374, huge). This time hopefully the real thing.  
3624 5702 d 23 h svoboda /branches/tracing/kernel/ Move debbuging-related as functions to a separate module.  
3431 5770 d 14 h svoboda /branches/tracing/kernel/ Add configuration option CONFIG_UDEBUG to compile udebug in the kernel or not.  
3425 5771 d 1 h svoboda /branches/tracing/ Merge latest trunk changes into tracing (broken)  
3036 5877 d 18 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 5882 d 2 h svoboda /branches/tracing/kernel/generic/ Bypass area write-protection for udebug memory writes.  
2787 5943 d 19 h decky /branches/tracing/ add dynamic linking, debugging and tracing branch  
2745 5972 d 23 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2725 5993 d 21 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)
 
2556 6124 d 0 h jermar /trunk/kernel/generic/ Rename as_get_size() to as_area_get_size() and add a doxygen comment.  
2465 6236 d 20 h jermar /trunk/ Merge arm32 into trunk.  
2444 6244 d 12 h jermar /trunk/kernel/ First fixes for suncc support.
It is going to be a long way...
 
2183 6300 d 19 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 6305 d 13 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 6308 d 20 h jermar /trunk/kernel/generic/include/mm/ Remove out of date comment.  
2126 6353 d 12 h decky /trunk/kernel/ small cleanup, more work coming  
2125 6353 d 15 h decky /trunk/ experimental support for Objective C
(disabled by default)
 
2124 6353 d 17 h decky /trunk/kernel/generic/ implement simple realloc()  
2122 6359 d 19 h decky /trunk/kernel/generic/ explicit typecast, fix signed/unsigned comparison  
2107 6361 d 14 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 6361 d 22 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 6366 d 18 h decky /trunk/kernel/generic/ avoid conflict with potential keyword  
2093 6366 d 18 h decky /trunk/kernel/ spinlock extern declaration macro  
2089 6367 d 22 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2085 6373 d 20 h decky /trunk/kernel/ typedef elimination  
2083 6373 d 21 h decky /trunk/kernel/ typedef elimination  
2071 6378 d 14 h jermar /trunk/ (c) versus (C)  
2059 6401 d 23 h jermar /trunk/kernel/generic/ Improve indentation and formatting.  
2015 6417 d 15 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 6422 d 14 h jermar /trunk/kernel/ Initial support for handling illegal virtual aliases on sparc64.  
2007 6425 d 13 h jermar /trunk/kernel/ Introduce page colors. So far, only sparc64 uses correct page color bits. Other architectures have a dummy define
specifying zero bits for a page color.

There is a new check of page color in as_area_share(). Because of lack of support for this in the userspace, the
check has been #ifef'ed out.
 
2001 6428 d 12 h jermar /trunk/kernel/ Indentation and comment fixes.  
2000 6429 d 0 h decky /trunk/kernel/ move files to more proper locations  
1999 6429 d 0 h decky /trunk/ start RAM disk support  
1951 6465 d 17 h jermar /trunk/kernel/generic/include/mm/ Fix comma mistakenly removed in last commit.  
1950 6465 d 17 h jermar /trunk/kernel/ Indentation changes and coding style fixes in slab.c and slab.h.  
1941 6469 d 18 h decky /trunk/kernel/generic/include/ cleanup  
1914 6479 d 20 h jermar /trunk/kernel/generic/ Add function for printing out info about address space.  
1891 6499 d 13 h jermar /trunk/kernel/ sparc64 work:
- Experimental support for TSB (Translation Storage Buffer).
 
1890 6499 d 23 h jermar /trunk/ - Create a dedicated slab cache for as_t objects and switch from malloc/free to slab_alloc/slab_free for
them.

- Slightly fix and improve both the kernel and userspace atomic_add() on sparc64.

- More TSB work on the sparc64 front.