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1822 6523 d 22 h jermar /trunk/ sparc64 work.
1. Formatting fixes.
2. When writing to DMMU ASI's, simple membar() can be used in place of flush().
3. Substantial changes in the way the TLB is taken over.
4. Remove unneeded functions.

This is the first revision that also runs on a real world Ultra 5 with UltraSPARC IIi
processor.

Note that 3. needs further work as the current implementation depends on the fact
that the compiler will use registers for local variables in take_over_tlb_and_tt().
Rewrite of that function into assembly is to follow.		  
1821 6525 d 17 h decky /trunk/kernel/arch/xen32/ xen32 cleanup  
1818 6530 d 13 h decky /trunk/kernel/ make burst updates  
1817 6531 d 9 h decky /trunk/kernel/arch/ xen32 work: create identity mapping for the main memory zone,
make several dummy modifications to get to the banner		  
1816 6531 d 17 h decky /trunk/kernel/ xen memory initialization  
1815 6531 d 19 h decky /trunk/kernel/arch/xen32/src/ fork drivers  
1814 6531 d 19 h decky /trunk/kernel/arch/xen32/include/ fork drivers  
1813 6531 d 19 h decky /trunk/kernel/arch/xen32/ xen32 hypervisor interface  
1812 6531 d 19 h decky /trunk/kernel/ move macro and cleanup  
1811 6531 d 21 h decky /trunk/kernel/arch/ unify bootstrapping  
1810 6538 d 10 h decky /trunk/kernel/arch/xen32/ remove obsolete stuff  
1809 6538 d 12 h decky /trunk/kernel/arch/xen32/ update xen32 support (most of the code is still dummy)  
1808 6538 d 12 h decky /trunk/kernel/arch/xen32/include/ fork directories  
1807 6538 d 14 h decky /trunk/kernel/arch/xen32/ fork directories  
1806 6538 d 14 h decky /trunk/kernel/arch/xen32/ fork directories  
1805 6538 d 21 h decky /trunk/kernel/arch/xen32/src/boot/ make Xen recognize the kernel image  
1804 6538 d 21 h decky /trunk/kernel/arch/xen32/ fork Xen32 makefile and linker script  
1802 6539 d 8 h decky /trunk/ cleanup and unify the build system  
1793 6541 d 22 h jermar /trunk/kernel/ Change hw_map() on sparc64 to use virtual addresses that are
beyond the end of physical memory. It is beneficial in two
ways: first, physical memory is no longer being wasted by
otherwise necessary calls to frame_alloc() and, second,
virtual addresses for devices are now correctly allocated
and do not overlap with the 4M TLB-locked mapping for
kernel text and data.		  
1792 6542 d 11 h jermar /trunk/ Move functionality of tlb_arch_init() to take_over_tlb_and_tt().
Call take_over_tlb_and_tt() very early after the kernel starts
executing.		  

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