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Rev Age Author Path Log message Diff
1007 6638 d 12 h decky /kernel/trunk/ ppc32: preemptive scheduling works now
FPU context saving disabled for now		  
1004 6638 d 23 h decky /kernel/trunk/ ppc32: basic exception and interrupt handling  
1001 6639 d 0 h decky /kernel/trunk/arch/ppc32/include/ fix semantics  
1000 6639 d 0 h decky /kernel/trunk/arch/ppc32/include/ add atomic_pre/post_inc/dec  
993 6639 d 4 h jermar /kernel/trunk/arch/ia64/ Fix bug in switch to userspace on ia64: ensure start in bank 1.
Fix bug in tlb_invalidate_all() that cause interrupts to be unconditionally enabled.
Optimize context switching by discarding packed attribute of context structures.		  
990 6639 d 5 h decky /kernel/trunk/ ppc32: initial stack, memory barriers, atomic operations, stack offset fix  
987 6639 d 7 h decky /kernel/trunk/arch/ppc32/ ppc32: initial exception support  
984 6639 d 9 h palkovsky /kernel/trunk/arch/ Fixed invlpg for ia32 & amd64.  
983 6639 d 9 h palkovsky /kernel/trunk/ Fixed shrinking of as area.  
982 6639 d 9 h decky /kernel/trunk/arch/ppc32/ ppc32: initial I/O support  
980 6639 d 10 h palkovsky /kernel/trunk/ Small speed update of ipc.
Fixed some bugs regarding pages in mremap.		  
979 6639 d 10 h vana /kernel/trunk/arch/ia64/ Itanium FPU context save/restore  
977 6639 d 10 h jermar /kernel/trunk/ Add sys_mremap() syscall.  
972 6639 d 13 h decky /kernel/trunk/arch/ppc32/ ppc32: move kernel one frame up
frame zones initialization		  
970 6639 d 13 h decky /kernel/trunk/arch/ppc32/ ppc32: get memory map from loader  
967 6639 d 13 h palkovsky /kernel/trunk/ Allowed userspace to include page.h.  
962 6640 d 3 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
959 6640 d 3 h palkovsky /kernel/trunk/ New synchronous ipc.
Widened syscall to support up to 5 parameters.		  
958 6640 d 4 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.		  
957 6640 d 4 h decky /kernel/trunk/arch/ run ppc32 kernel above 2 GB  
955 6640 d 5 h palkovsky /kernel/trunk/ Added kernel IPC functionality.  
952 6640 d 8 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
951 6640 d 9 h decky /kernel/trunk/arch/ppc32/ ppc32 boots again (temporarily)  
947 6640 d 14 h vana /kernel/trunk/ Better purge page selection.  
945 6641 d 3 h vana /kernel/trunk/arch/ia64/  
944 6641 d 3 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
941 6641 d 5 h palkovsky /kernel/trunk/ Fixed mips elf loading.  
940 6641 d 5 h jermar /kernel/trunk/ Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader.		  
938 6641 d 6 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6641 d 7 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
934 6641 d 7 h decky /kernel/trunk/arch/ppc32/ remove all OpenFirmware bindings from ppc32 kernel code
kernel now runs in real mode (ppc32)		  
928 6641 d 11 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
925 6641 d 14 h palkovsky /kernel/trunk/arch/ia32/src/mm/ Fix e820list on ia32.  
924 6641 d 16 h palkovsky /kernel/trunk/arch/mips32/ Macro redefinition for mips fpu.  
923 6641 d 23 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
921 6644 d 7 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6644 d 11 h jermar /kernel/trunk/ ia64 work.
Changes to make userspace work (kernel part).
Use ski.conf from contrib directory to run Ski.

There is actually no appropriate syscall handler yet.		  
916 6646 d 13 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6646 d 14 h jermar /kernel/trunk/arch/ia64/ ia64 work.
- Another item had to be allocated on stack to remember new value written to ar.bspstore.
Fix heavyweight interruption handler to calculate RSC.loadrs from the new value of ar.bspstore
instead from the old one.
Uncomment instructions switching ar.bspstore.
- Configure kernel with 512M of memory.		  
912 6648 d 4 h jermar /kernel/trunk/ ia64 work.

ivt.S:
Detect userspace stack in heavyweight handler and switch to kernel stack.
Remember the old stack pointer.
As for register stack, kernel stack is assumed still.
Fix alignment issues that showed when STACK_ITEMS was odd.
Fix ld8 instruction that did subtraction of 8 instead of addition of 8.

scheduler.c:
Change before_thread_runs_arch() to calculate address of top of the stack
for the interrupt handler.