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(root)/kernel/trunk/arch/mips32/src/mm/tlb.c – Rev 983

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Rev	Age	Author	Path	Log message
983	6644 d 17 h	palkovsky	/kernel/trunk/	Fixed shrinking of as area.
958	6645 d 12 h	jermar	/kernel/trunk/	Nicer ia32 interrupt handlers and structures holding interrupted context data. Unify the name holding interrupted context data on all architectures to be istate.
831	6676 d 16 h	jermar	/kernel/trunk/	Make use of one unused bit in PTE formats of amd64, ia32 and mips32 to store 1 in valid mappings. This helps to distinguish valid entries from not present entries with 0 content (i.e. not present entries with PFN 0 and other bits cleared).
830	6676 d 18 h	jermar	/kernel/trunk/	Make ASID FIFO for mips32 be allocated statically. Make ASID FIFO for sparc64 and ia64 be allocated dynamically. Fix ia64 to call asid_fifo_init(). All three architectures now call asid_fifo_init() from as_arch_init().
765	6684 d 11 h	jermar	/kernel/trunk/	Add PAGE_WIDTH to aid divisions by PAGE_SIZE.
764	6684 d 16 h	palkovsky	/kernel/trunk/	Tested basic non-cached slab allocation.
756	6686 d 8 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	6687 d 8 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.
730	6696 d 15 h	jermar	/kernel/trunk/	Finalize ASID management for sparc64 and mips32 by making use of FIFO queue of ASIDs.
727	6698 d 10 h	jermar	/kernel/trunk/	New ASID management subsystem (initial work, more is required). Some TLB invalidation changes.
704	6704 d 16 h	jermar	/kernel/trunk/	Make various mips32 tlb manipulation functions preserve EntryHi register. Cleanup and more precise comments for previous commit.
703	6704 d 19 h	jermar	/kernel/trunk/	Memory management work. - vm.* -> as.* (as like address space is, imho, more fitting) - Don't do TLB shootdown on vm_install(). Some architectures only need to call tlb_invalidate_asid(). - Don't allocate all frames for as_area in as_area_create(), but let them be allocated on-demand by as_page_fault(). - Add high-level page fault handler as_page_fault(). - Add as_area_load_mapping().
687	6709 d 16 h	jermar	/kernel/trunk/	Memory management work. Pass address space identifier to functions in page_operations to support single global page hash table.
618	6735 d 9 h	jermar	/kernel/trunk/arch/mips32/src/mm/	Unify mips32 and sparc64 tlb_invalidate_all() semantics: do not invalidate locked/wired TLB entries.
612	6736 d 13 h	jermar	/kernel/trunk/arch/mips32/src/mm/	Weaken the assumption, that PageMask register contains the right mask everytime. As a result, TLB exceptions will explicitly write this register when filling TLB entry. Adjust tlb_print() on mips32 to print PageMask as well.
599	6737 d 18 h	jermar	/kernel/trunk/arch/mips32/	Fixes for mips32 invalidation functions.
598	6737 d 18 h	jermar	/kernel/trunk/arch/mips32/src/mm/	TLB invalidation functions for mips32. Not deployed yet. Not tested.
594	6738 d 13 h	jermar	/kernel/trunk/	ptlb command (currently usable on mips32 only).
569	6740 d 10 h	jermar	/kernel/trunk/	sparc64 work. Implement functions for reading IMMU and DMMU TLBs.
534	6744 d 13 h	jermar	/	Rename HelenOS/SPARTAN to HelenOS/kernel again.
532	6744 d 13 h	jermar	/	Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.
501	6756 d 17 h	jermar	/	Rename HelenOS/SPARTAN to HelenOS/kernel.
492	6757 d 10 h	jermar	/SPARTAN/trunk/	Rename map_page_to_frame() to page_mapping_insert() and find_mapping() to page_mapping_find(). New names should make it more apparent that these two belong together.
413	6792 d 9 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.
403	6799 d 12 h	jermar	/SPARTAN/trunk/arch/	Small improvement in pte_t type definition.
399	6802 d 9 h	jermar	/SPARTAN/trunk/	mips32 memory management work. TLB exceptions seem to be working on at least simics. msim handles TLB Refill and TLB Invalid exceptions well, but seems to skip writes to the mapped addressies in mm mapping test #1 (the data is not written and exception is not triggered).
397	6802 d 22 h	jermar	/SPARTAN/trunk/	Small changes to mips32 mm. Small changes in mm mapping test #1.
396	6803 d 20 h	jermar	/SPARTAN/trunk/	Add mm/mapping1 test. (Will not make it past TLB Invalid exception on mips32.) Fixes in asid.c. Make TLB register types union with __u32 value. Implement tlb_invalidate() for mips32. (TLB invalidation and shootdown path will have to be revised.)
395	6804 d 11 h	jermar	/SPARTAN/trunk/arch/mips32/src/mm/	Small fix. MIPS32 pte_t.c is not bool.
394	6804 d 11 h	jermar	/SPARTAN/trunk/arch/mips32/	MIPS32 memory management work. Fix some bugs introduced yesterday (PTL3 index is indeed calculated by >> 14). Introduce two new bits in pte_t (i.e. 'a' and 'w'). Implement TLB Invalid Exception and TLB Modified Exception. (Needs review and testing)
391	6805 d 10 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.
389	6805 d 21 h	jermar	/SPARTAN/trunk/	MIPS work. Fix some name inconsistencies between cp0 functions' declarations and definitions. Add and implement tlb_init_arch(). Add tlb_modified() exception handler. Other architectures: add dummy tlb_init_arch().
341	6827 d 19 h	jermar	/SPARTAN/trunk/	Rename mips port to mips32.
332	6828 d 20 h	palkovsky	/SPARTAN/trunk/	Updated symtab so that it works correctly with BE architectures. Changed compiler for BE MIPS to be mips-sgi-irix5, because mipsel -EB does not behave correctly. Doc updates to amd64. Added ARC BIOS support to MIPS architecture. Putchar works correctly, kernel passed FPU & some rwlock tests.
324	6830 d 19 h	palkovsky	/SPARTAN/trunk/	MIPS architecture now works without any problems in - msim: compile as OUTPUT_FORMAT(binary) - gxemul: compile as OUTPUT_FORMAT(ecoff-littlemips), or create configuration file for binary format (will be done later) - simics: compile as OUTPUT_FORMAT(elf32-little), might work with binary format, didn't try yet.
319	6832 d 22 h	jermar	/SPARTAN/trunk/arch/mips/	Copyright notices changes.
317	6832 d 23 h	palkovsky	/SPARTAN/trunk/	MIPS exception now saves all necesssary information only on stack.
306	6834 d 0 h	palkovsky	/SPARTAN/trunk/	Fixed mips boot process. On interrupt saving registers, save $lo, $hi. Add interrupt naming to asm files (mips). Save only necessary registers on context switch (see mips ABI). Fixed copyright info.
268	6836 d 16 h	palkovsky	/SPARTAN/trunk/	Added symbol table lookup in exceptions. This breaks ia64 & ppc architecture compiles.
240	6838 d 14 h	palkovsky	/SPARTAN/trunk/arch/mips/	Fixed bad register assignment in atomic.h. Added -msoft-float so that it does not call coprocessor and it works withou doubles. Removed undefined symbol from tlb.c. Unfortunately mips linker does not report missing symbols.