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Rev Age Author Path Log message Diff
4537 5549 d 7 h trochtova /branches/dd/ dd branch synchronized with trunk (revision 4536)  
4055 5648 d 4 h trochtova /branches/dd/ changes in trunk (rev 4054) merged into dd branch  
3022 5931 d 6 h decky /branches/dd/ device drivers branch  
2916 5947 d 22 h jermar /trunk/kernel/generic/src/ More formatting changes.  
2745 6023 d 5 h decky /trunk/ code cleanup (mostly signed/unsigned)
allow extra compiler warnings
 
2275 6335 d 22 h decky /trunk/kernel/generic/ add fancy uptime kconsole command  
2183 6351 d 1 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.
 
2141 6359 d 17 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.
 
2089 6418 d 3 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2071 6428 d 20 h jermar /trunk/ (c) versus (C)  
2015 6467 d 20 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.
 
1787 6618 d 22 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1780 6625 d 23 h jermar /kernel/trunk/ Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.).  
1760 6637 d 1 h palkovsky /kernel/trunk/ Changed interface of frame_alloc/free to use address of frame instead of the pfn.
This makes it impossible to use >4GB of memory on 32-bit machines, but who cares...
 
1757 6640 d 4 h jermar /kernel/trunk/ Cleanup of comments.  
1731 6642 d 16 h jermar /kernel/trunk/ Updates in Doxygen-style comments.
Make architecture specific modules appear conditionally in the documentation.
Add time management module.
Improve names of other modules and sort module order
to be more like in the design documentation.
 
1705 6646 d 5 h cejka /kernel/trunk/ Added file with modules definitions and descriptions.
We are able to change modules order and their description in one place.
 
1704 6646 d 9 h cejka /kernel/trunk/ Fixed first letter size of subgroup name in Others.  
1702 6647 d 2 h cejka /kernel/trunk/ Kernel doxygen comments updated.  
1457 6660 d 19 h jermar /kernel/trunk/generic/src/time/ Project missed_clock_ticks also on thread timeslice and run queue relink counter.  
1438 6662 d 18 h palkovsky /kernel/trunk/generic/ Correct realtime clock communication.  
1434 6662 d 22 h palkovsky /kernel/trunk/ Added 'realtime' clock interface.
Added some asm macros as memory barriers.
Added drift computing for mips platform.
 
1433 6663 d 2 h jermar /kernel/trunk/generic/src/time/ Fix critical bug in timeout processing introduced several hours ago.  
1431 6663 d 5 h jermar /kernel/trunk/generic/ Add missed_clock_ticks to CPU structure so that clock() can detect missed timer interrupts.
Architectures are required to support this in order to make time keeping accurate.
 
1264 6690 d 4 h jermar /kernel/trunk/generic/ Improve Doxygen-comments.  
1196 6705 d 3 h cejka /kernel/trunk/ Printf ported back from uspace to kernel.
Printf calls changed to match new conventions.
 
1104 6729 d 23 h jermar /kernel/trunk/ Define atomic_t only once in atomic.h
Change the encapsulated counter type to long so that it supports negative values as well.
 
788 6774 d 23 h jermar /kernel/trunk/ Move list and fifo data types to adt/.  
659 6820 d 6 h jermar /kernel/trunk/ Make the kernel compile with -Wall.  
615 6829 d 5 h palkovsky /kernel/trunk/ Cleanups to make it compile with -Wall. Did not catch everything yet.  
552 6835 d 19 h palkovsky /kernel/trunk/ Named spinlocks  
534 6837 d 21 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel again.  
532 6837 d 21 h jermar / Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.  
501 6850 d 2 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel.  
430 6870 d 18 h jermar /SPARTAN/trunk/ Move src/ and include/ to generic.  
413 6885 d 17 h jermar /SPARTAN/trunk/ Rename cpu_priority_{high|low|restore|read} functions to interrupts_{disable|enable|restore|read}.
Rename pri_t to ipl_t (Interrupt Priority Level).
Rename thread_t::pri to thread_t::priority.
 
411 6886 d 21 h jermar /SPARTAN/trunk/ Doxygen comments.  
404 6891 d 20 h jermar /SPARTAN/trunk/src/ Fix doxygen comments.  
391 6898 d 19 h jermar /SPARTAN/trunk/ mips32 memory management work.
TLB Refill Exception implemented (passed basic testing).
Remove bit g from struct entry_hi.
Add generic find_mapping().
Add asid to vm_t type, define asid_t to hide architecture specific differences.
Implement ASID allocation for mips32, dummy for other architectures.
Add THE->vm (a.k.a. VM).
Add vm_install_arch().
Move pte_t definition to arch/types.h on each architecture.
Fix PTL manipulating functions on mips32 to shift pfn by 12 instead of by 14.
Fix tlb_init_arch() to initialize all entries.

Other.
Remove unnecessary header files from arch.h
Add missing headers here and there.
Remove two unnecessary ld flags from mips32 makefile.
 
239 6931 d 23 h vana /SPARTAN/trunk/ Missing ";" added