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HelenOS
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kernel
@ 773
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773
6748 d 5 h
palkovsky
/kernel/trunk/
Added slab stress test.
Fixed race condition in slab allocator.
Moved initialization of slab to the point where we know correct config.cpu_count
Correctly passes tests on amd64, ia32 in both bochs & qemu.
772
6748 d 6 h
palkovsky
/kernel/trunk/
Fixed non-initialized cpu-cache.
771
6748 d 8 h
palkovsky
/kernel/trunk/generic/
Implemented malloc/free as SLABs.
770
6748 d 15 h
palkovsky
/kernel/trunk/generic/include/
Fix context_save, so that it works even with inlines disabled (-O0).
769
6749 d 4 h
palkovsky
/kernel/trunk/
SLAB allocator now uses itself for all its internal structures.
Added description of allocator.
Removed messy_stack_trace from amd64, as it would scroll away important
part of exception.
768
6749 d 7 h
palkovsky
/kernel/trunk/
Debugged slab allocator. It currently supports per-CPU cache on 1 cpu.
767
6749 d 8 h
palkovsky
/kernel/trunk/
Partially working SLAB CPU cache.
766
6749 d 9 h
palkovsky
/kernel/trunk/
Basic SLAB (without CPU-cache) passes test.
765
6749 d 10 h
jermar
/kernel/trunk/
Add PAGE_WIDTH to aid divisions by PAGE_SIZE.
764
6749 d 15 h
palkovsky
/kernel/trunk/
Tested basic non-cached slab allocation.
763
6749 d 16 h
jermar
/kernel/trunk/
Modify frame.h to use shifting instead of multiplication and division.
Define FRAME_WIDTH for all architectures.
762
6749 d 17 h
palkovsky
/kernel/trunk/
Currently not-working SLAB allocator.
- slightly changed interface to frame_alloc, allow zone preference
761
6749 d 18 h
jermar
/kernel/trunk/doc/
Remove document describing more relaxed preemption model than the one used in the current kernel.
760
6749 d 18 h
jermar
/kernel/trunk/
mips32 is not supposed to allocate page table.
This is done by the generic code now.
Remove PTL0 pointer as it is not needed.
Remove GET_PTL0_ADDRESS from kernel.
Update sparc64 comments in barrier.h.
759
6750 d 5 h
palkovsky
/kernel/trunk/
Skeleton of SLAB allocator.
758
6750 d 8 h
jermar
/kernel/trunk/arch/
sparc64 bugfix.
When disabling IMMU and DMMU the kernel has to perform synchronization operation
(e.g flush %r or membar #Sync instruction). There is no guarantee that the address
contained in %r is in DTLB and therefore the flush instruction can fault. Normally
this would be recognized and fixed by the OpenFirmware Fast Data MMU fault handler.
However, this handler lives in virtually mapped memory and an attempt to execute
there while the MMUs are disabled would result in a nested trap leading to error state.
Replacing flush %r instruction with membar #Sync, wich is sufficient in this case,
fixes this problem.
757
6750 d 10 h
jermar
/kernel/trunk/
Blacklist addresses between 0xa0000 and 0xfffff on ia64 for frame allocator.
This area contains VGA text frame buffer and should be avoided.
falloc2 test now passes on ia64.
756
6751 d 7 h
jermar
/kernel/trunk/
Memory management work.
Remove the last (i.e. 'root') argument from page_mapping_insert() and page_mapping_find().
Page table address is now extracted from the first (i.e. 'as') argument.
Add a lot of infrastructure to make the above possible.
sparc64 is now broken, most likely because of insufficient identity mapping of physical memory.
755
6752 d 6 h
jermar
/kernel/trunk/
Change page_mapping_find/insert interfaces to take as_t * as first argument
and not asid_t as second argument. This change was necessitated by the
removal of mapping array from as_area_t and the fact that an address
space doesn't have an ASID when it is created.
754
6752 d 7 h
jermar
/kernel/trunk/generic/
Remove address space area mapping array.
The information is to be stored directly in page tables.
This is to better support 64-bit systems which can have
fairly large address space areas.
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