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Rev Age Author Path Log message Diff
1053 6777 d 23 h vana /kernel/trunk/ Itanium FPU Lazy context switching... but not so much tested  
1044 6778 d 3 h jermar /kernel/trunk/ Page table locking.  
1039 6778 d 4 h decky /kernel/trunk/arch/ update for the use of more init tasks  
1023 6778 d 22 h vana /kernel/trunk/ Itanium FPU active context switch  
993 6779 d 20 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.		  
979 6780 d 2 h vana /kernel/trunk/arch/ia64/ Itanium FPU context save/restore  
962 6780 d 19 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
958 6780 d 20 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.		  
947 6781 d 6 h vana /kernel/trunk/ Better purge page selection.  
945 6781 d 19 h vana /kernel/trunk/arch/ia64/  
944 6781 d 20 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
938 6781 d 22 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6781 d 23 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
928 6782 d 3 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
923 6782 d 15 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
921 6784 d 23 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6785 d 4 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 6787 d 5 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6787 d 6 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 6788 d 20 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.		  

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