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Rev	Age	Author	Path	Log message
773	6862 d 10 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	6862 d 12 h	palkovsky	/kernel/trunk/	Fixed non-initialized cpu-cache.
771	6862 d 13 h	palkovsky	/kernel/trunk/generic/	Implemented malloc/free as SLABs.
770	6862 d 20 h	palkovsky	/kernel/trunk/generic/include/	Fix context_save, so that it works even with inlines disabled (-O0).
769	6863 d 10 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	6863 d 13 h	palkovsky	/kernel/trunk/	Debugged slab allocator. It currently supports per-CPU cache on 1 cpu.
767	6863 d 14 h	palkovsky	/kernel/trunk/	Partially working SLAB CPU cache.
766	6863 d 15 h	palkovsky	/kernel/trunk/	Basic SLAB (without CPU-cache) passes test.
765	6863 d 15 h	jermar	/kernel/trunk/	Add PAGE_WIDTH to aid divisions by PAGE_SIZE.
764	6863 d 20 h	palkovsky	/kernel/trunk/	Tested basic non-cached slab allocation.
763	6863 d 21 h	jermar	/kernel/trunk/	Modify frame.h to use shifting instead of multiplication and division. Define FRAME_WIDTH for all architectures.
762	6863 d 22 h	palkovsky	/kernel/trunk/	Currently not-working SLAB allocator. - slightly changed interface to frame_alloc, allow zone preference
761	6863 d 23 h	jermar	/kernel/trunk/doc/	Remove document describing more relaxed preemption model than the one used in the current kernel.
760	6864 d 0 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	6864 d 11 h	palkovsky	/kernel/trunk/	Skeleton of SLAB allocator.
758	6864 d 13 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	6864 d 16 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	6865 d 12 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	6866 d 12 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	6866 d 13 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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