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Rev Age Author Path Log message Diff
1007 6676 d 4 h decky /kernel/trunk/ ppc32: preemptive scheduling works now
FPU context saving disabled for now		  
1004 6676 d 16 h decky /kernel/trunk/ ppc32: basic exception and interrupt handling  
1001 6676 d 16 h decky /kernel/trunk/arch/ppc32/include/ fix semantics  
1000 6676 d 17 h decky /kernel/trunk/arch/ppc32/include/ add atomic_pre/post_inc/dec  
993 6676 d 21 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 6676 d 22 h decky /kernel/trunk/ ppc32: initial stack, memory barriers, atomic operations, stack offset fix  
987 6677 d 0 h decky /kernel/trunk/arch/ppc32/ ppc32: initial exception support  
984 6677 d 1 h palkovsky /kernel/trunk/arch/ Fixed invlpg for ia32 & amd64.  
983 6677 d 1 h palkovsky /kernel/trunk/ Fixed shrinking of as area.  
982 6677 d 2 h decky /kernel/trunk/arch/ppc32/ ppc32: initial I/O support  
980 6677 d 2 h palkovsky /kernel/trunk/ Small speed update of ipc.
Fixed some bugs regarding pages in mremap.		  
979 6677 d 3 h vana /kernel/trunk/arch/ia64/ Itanium FPU context save/restore  
977 6677 d 3 h jermar /kernel/trunk/ Add sys_mremap() syscall.  
972 6677 d 5 h decky /kernel/trunk/arch/ppc32/ ppc32: move kernel one frame up
frame zones initialization		  
970 6677 d 6 h decky /kernel/trunk/arch/ppc32/ ppc32: get memory map from loader  
967 6677 d 6 h palkovsky /kernel/trunk/ Allowed userspace to include page.h.  
962 6677 d 19 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
959 6677 d 20 h palkovsky /kernel/trunk/ New synchronous ipc.
Widened syscall to support up to 5 parameters.		  
958 6677 d 21 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 6677 d 21 h decky /kernel/trunk/arch/ run ppc32 kernel above 2 GB  
955 6677 d 21 h palkovsky /kernel/trunk/ Added kernel IPC functionality.  
952 6678 d 1 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
951 6678 d 1 h decky /kernel/trunk/arch/ppc32/ ppc32 boots again (temporarily)  
947 6678 d 6 h vana /kernel/trunk/ Better purge page selection.  
945 6678 d 19 h vana /kernel/trunk/arch/ia64/  
944 6678 d 20 h vana /kernel/trunk/ Itanium tlb_invalidate_pages  
941 6678 d 22 h palkovsky /kernel/trunk/ Fixed mips elf loading.  
940 6678 d 22 h jermar /kernel/trunk/ Get rid of unneeded macros.
Their functionality has been replaced by the ELF loader.		  
938 6678 d 22 h jermar /kernel/trunk/ Basic support for loading ELF object files.
ia64, amd64, ia32 working.
mips32 requires some attention.		  
935 6678 d 23 h vana /kernel/trunk/ Two frame stack (standard stack + RSE) on Itanium  
934 6678 d 23 h decky /kernel/trunk/arch/ppc32/ remove all OpenFirmware bindings from ppc32 kernel code
kernel now runs in real mode (ppc32)		  
928 6679 d 4 h vana /kernel/trunk/ Itanium tlb_invalidate_all  
925 6679 d 7 h palkovsky /kernel/trunk/arch/ia32/src/mm/ Fix e820list on ia32.  
924 6679 d 8 h palkovsky /kernel/trunk/arch/mips32/ Macro redefinition for mips fpu.  
923 6679 d 16 h vana /kernel/trunk/arch/ia64/src/ paging_start counting fix on ia64  
921 6681 d 23 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
919 6682 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 6684 d 6 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
915 6684 d 7 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 6685 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.