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1056 6676 d 0 h jermar /kernel/trunk/arch/ia64/src/ Slightly optimized version of ivt.S.  
/kernel/trunk/arch/ia64/src/ivt.S
1053 6676 d 1 h vana /kernel/trunk/ Itanium FPU Lazy context switching... but not so much tested  
/kernel/trunk/arch/ia64/Makefile.inc
/kernel/trunk/arch/ia64/include/context.h
/kernel/trunk/arch/ia64/include/fpu_context.h
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/src/context.S
/kernel/trunk/arch/ia64/src/fpu_context.c
/kernel/trunk/arch/ia64/src/interrupt.c
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/start.S
/kernel/trunk/generic/src/console/cmd.c
/kernel/trunk/test/fpu/fpu1/test.c
1023 6677 d 0 h vana /kernel/trunk/ Itanium FPU active context switch  
/kernel/trunk/arch/ia64/include/fpu_context.h
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/include/register.h
/kernel/trunk/arch/ia64/src/dummy.s
/kernel/trunk/arch/ia64/src/fpu_context.c
/kernel/trunk/arch/ia64/src/interrupt.c
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/kernel.config
/kernel/trunk/test/fpu/fpu1/test.c
993 6677 d 22 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.		  
/kernel/trunk/arch/ia64/include/context.h
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/src/asm.S
/kernel/trunk/arch/ia64/src/fpu_context.c
/kernel/trunk/arch/ia64/src/ia64.c
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/mm/tlb.c
/kernel/trunk/arch/ia64/src/proc/scheduler.c
/kernel/trunk/arch/ia64/src/start.S
979 6678 d 4 h vana /kernel/trunk/arch/ia64/ Itanium FPU context save/restore  
/kernel/trunk/arch/ia64/include/fpu_context.h
/kernel/trunk/arch/ia64/include/types.h
/kernel/trunk/arch/ia64/src/fpu_context.c
/kernel/trunk/arch/ia64/src/ivt.S
962 6678 d 21 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Support for __SYSCALL4.
Fix user stack initial address.		  
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/src/ia64.c
/kernel/trunk/arch/ia64/src/interrupt.c
/kernel/trunk/arch/ia64/src/ivt.S
921 6683 d 1 h jermar /kernel/trunk/arch/ia64/ ia64 work.
Userspace is now working.
There is an unrelated show stopper, however.		  
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/src/interrupt.c
/kernel/trunk/arch/ia64/src/ivt.S
919 6683 d 6 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.		  
/kernel/trunk/arch/ia64/Makefile.inc
/kernel/trunk/arch/ia64/include/asm.h
/kernel/trunk/arch/ia64/include/context.h
/kernel/trunk/arch/ia64/include/mm/as.h
/kernel/trunk/arch/ia64/include/register.h
/kernel/trunk/arch/ia64/src/asm.S
/kernel/trunk/arch/ia64/src/dummy.s
/kernel/trunk/arch/ia64/src/ia64.c
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/mm/tlb.c
/kernel/trunk/arch/ia64/src/start.S
/kernel/trunk/contrib/conf/ski.conf
916 6685 d 7 h jermar /kernel/trunk/arch/ia64/src/ ia64 work.
Support switch from userspace register stack in heavyweight handler.		  
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/proc/scheduler.c
915 6685 d 8 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.		  
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/include/mm/memory_init.h
/kernel/trunk/arch/ia64/src/ivt.S
912 6686 d 22 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.		  
/kernel/trunk/arch/ia64/include/interrupt.h
/kernel/trunk/arch/ia64/include/register.h
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/proc/scheduler.c
/kernel/trunk/doc/arch/ia64
911 6687 d 2 h jermar /kernel/trunk/arch/ia64/ ia64 work.

Change heavyweight interrupt handler to use bank 0 registers instead of AR.KR0 and AR.KR1.
This prevents userspace from the possibility to see what addresses are being used by kernel.

Store kernel stack address in bank 0 r23 instead of AR.KR7. Again, userspace will not be
able to read the address of its kernel stack.

Increase FRAME_SIZE to 64K as this is the first supported page size in which will fit
thread's combined register and memory stack. (RSE can write out as many as 16K.)		  
/kernel/trunk/arch/ia64/include/mm/frame.h
/kernel/trunk/arch/ia64/include/register.h
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/proc/scheduler.c
899 6692 d 1 h jermar /kernel/trunk/arch/ ia64 work.
Add dummy TLB fault handlers.
Improve code reuse in arch/mm/tlb.c.		  
/kernel/trunk/arch/ia64/include/mm/tlb.h
/kernel/trunk/arch/ia64/src/ivt.S
/kernel/trunk/arch/ia64/src/mm/tlb.c
/kernel/trunk/arch/ppc32/src/console.c
534 6777 d 23 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel again.  
/kernel
/SPARTAN
532 6777 d 23 h jermar / Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.  
/SPARTAN
/kernel
501 6790 d 3 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel.  
/kernel
/SPARTAN
478 6801 d 1 h jermar /SPARTAN/trunk/ Re-aply mistakenly reverted changes.  
/SPARTAN/trunk/Makefile.config
/SPARTAN/trunk/arch/ia64/include/atomic.h
/SPARTAN/trunk/arch/ia64/src/ivt.S
477 6801 d 4 h vana /SPARTAN/trunk/ Atomic inc & dec functions synchronized on all ia32,ia64 and mips platforms. Now there are 3 versions which returns no value, new value and old value och changed variable.  
/SPARTAN/trunk/Makefile.config
/SPARTAN/trunk/arch/ia32/include/atomic.h
/SPARTAN/trunk/arch/ia64/include/atomic.h
/SPARTAN/trunk/arch/ia64/src/ivt.S
/SPARTAN/trunk/arch/mips32/include/atomic.h
473 6802 d 20 h jermar /SPARTAN/trunk/arch/ia64/src/ ia64 work.
Comment some offending steps of heavyweight interrupt handler regarding RSE switching.
With this change, ia64 will do well on tests rwlock #4 and thread #1.
Cleanup.		  
/SPARTAN/trunk/arch/ia64/src/cpu/cpu.c
/SPARTAN/trunk/arch/ia64/src/ivt.S
/SPARTAN/trunk/arch/ia64/src/start.S
472 6803 d 4 h jermar /SPARTAN/trunk/ Changes in build system.
For .S targets, always do -D__ASM__.
Remove unnecessary #define __ASM__ from various *.S files.
At the end of build, generate disassembler dump for kernel.raw.

ia64 work.
Better General Exception handler.		  
/SPARTAN/trunk/Makefile
/SPARTAN/trunk/arch/amd64/src/asm_utils.S
/SPARTAN/trunk/arch/amd64/src/boot/boot.S
/SPARTAN/trunk/arch/amd64/src/smp/ap.S
/SPARTAN/trunk/arch/ia32/src/boot/boot.S
/SPARTAN/trunk/arch/ia64/include/asm.h
/SPARTAN/trunk/arch/ia64/include/interrupt.h
/SPARTAN/trunk/arch/ia64/include/register.h
/SPARTAN/trunk/arch/ia64/src/interrupt.c
/SPARTAN/trunk/arch/ia64/src/ivt.S
/SPARTAN/trunk/arch/mips32/src/context.S
/SPARTAN/trunk/arch/mips32/src/start.S
/SPARTAN/trunk/arch/sparc64/src/context.S

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